Patent Application
20220094479
The present application claims a priority to Chinese patent application No. 201910009124.9 filed on Jan. 4, 2019, a disclosure of which is incorporated herein by reference in its entirety.
The present disclosure relates to the technical field of communication applications, and in particular, to an information transmission method, a terminal and a network device.
In the New Radio (NR) Rel-15, aperiodic channel state information (CSI) is transmitted through a physical uplink shared channel (PUSCH). A base station notifies user equipment (UE) of whether to perform aperiodic CSI report through a CSI request field in downlink control information (DCI) format 1_0 scheduling the PUSCH.
The CSI request field of the DCI format 1_0 may have 0, 1, 2, 3, 4, 5 or 6 bits. When the CSI request field is all 0, no CSI report is triggered. Otherwise, aperiodic CSI is reported according to higher layer configuration information. The base station can trigger the aperiodic CSI report to be transmitted together with uplink data, or trigger only the aperiodic CSI report.
DCI format 1_0 contains time domain resource allocation information and frequency domain resource allocation information. Aperiodic CSI and data (if present) are transmitted on a resource indicated by DCI format 1_0. When the DCI triggering the aperiodic CSI and the report of the aperiodic CSI are in the same slot, a reference resource for the aperiodic CSI is a slot of the DCI transmission; otherwise, the reference resource for the aperiodic CSI is a valid downlink slot which satisfies a CSI processing latency and is closest to the CSI report slot.
In the NR Rel-16, it is possible to support the use of downlink DCI to trigger a UE to transmit aperiodic CSI in a short physical uplink control channel (PUCCH) format, but there is no specific transmission scheme therefor thus far.
An object of the present disclosure is to provide an information transmission method, a terminal and a network device to solve the problem that there is no relevant solution as to how to transmit CSI in the case that the use of downlink DCI to trigger the transmission of aperiodic CSI on the PUCCH is supported.
In order to achieve the above object, the present disclosure provides an information transmission method applied to a terminal, including:
receiving downlink downlink control information (DCI), wherein the downlink DCI includes an aperiodic channel state information (CSI) trigger information field;
when the aperiodic CSI trigger information field in the downlink DCI indicates that aperiodic CSI is to be reported, determining a first transmission resource for the aperiodic CSI and a second transmission resource for a hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to the downlink DCI;
transmitting the aperiodic CSI on the first transmission resource and transmitting the HARQ-ACK on the second transmission resource.
The downlink DCI is at least one of:
DCI indicating semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH) release;
DCI scheduling PDSCH transmission.
When the downlink DCI is the DCI indicating the SPS PDSCH release, the HARQ-ACK corresponding to the downlink DCI is an HARQ-ACK corresponding to the DCI indicating the SPS PDSCH release;
when the downlink DCI is the DCI scheduling PDSCH transmission, the HARQ-ACK corresponding to the downlink DCI is an HARQ-ACK of the PDSCH scheduled by the downlink DCI.
The determining the first transmission resource for the aperiodic CSI includes:
determining a first feedback timing of the aperiodic CSI and a first physical uplink control channel PUCCH resource for transmitting the aperiodic CSI;
the determining the second transmission resource for HARQ-ACK corresponding to the downlink DCI includes:
determining a second feedback timing of the HARQ-ACK and a second PUCCH resource for transmitting the HARQ-ACK;
wherein, the first feedback timing is different from the second feedback timing, and/or the first PUCCH resource is different from the second PUCCH resource.
The first feedback timing is an interval between a first time domain resource of downlink DCI triggering the aperiodic CSI and a second time domain resource for transmitting the aperiodic CSI.
The first time domain resource is a slot in which downlink DCI triggering the aperiodic CSI is transmitted, and the second time domain resource is a slot in which the PUCCH for transmitting the aperiodic CSI is transmitted;
or, the first time domain resource is a last symbol of the downlink DCI triggering the aperiodic CSI, and the second time domain resource is a first symbol of the PUCCH transmitting the aperiodic CSI.
The first feedback timing is pre-configured by higher layer signaling, or is indicated by an aperiodic CSI feedback timing indication field in the downlink DCI,
or is indicated by an HARQ-ACK feedback timing indication field in the downlink DCI.
The first PUCCH resource is configured by higher layer signaling, or is indicated by an aperiodic CSI PUCCH resource indication field in the downlink DCI,
or is indicated by an HARQ-ACK resource indication field in the downlink DCI.
The transmitting the aperiodic CSI on the first transmission resource and transmitting the HARQ-ACK on the second transmission resource includes:
transmitting the aperiodic CSI on a first PUCCH resource, and transmitting the HARQ-ACK on a second PUCCH resource;
wherein, the first PUCCH resource and the second PUCCH resource are in a same slot, and do not overlap in the time domain;
or,
the first PUCCH resource and the second PUCCH resource are in different slots.
In order to achieve the above object, some embodiments of the present disclosure further provide an information transmission method applied to a network device, including:
sending downlink downlink control information (DCI), wherein the downlink DCI includes an aperiodic channel state information (CSI) trigger information field;
when the aperiodic CSI trigger information field in the downlink DCI indicates that aperiodic CSI is to be reported, determining a first transmission resource for the aperiodic CSI and a second transmission resource for a hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to the downlink DCI;
receiving the aperiodic CSI on the first transmission resource and receiving the HARQ-ACK on the second transmission resource.
The downlink DCI is at least one of:
DCI indicating semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH) release;
DCI scheduling PDSCH transmission.
When the downlink DCI is the DCI indicating the SPS PDSCH release, the HARQ-ACK corresponding to the downlink DCI is an HARQ-ACK corresponding to the DCI indicating the SPS PDSCH release;
when the downlink DCI is the DCI scheduling the PDSCH transmission, the HARQ-ACK corresponding to the downlink DCI is an HARQ-ACK of the PDSCH scheduled by the downlink DCI.
The determining the first transmission resource for the aperiodic CSI includes:
determining a first feedback timing of the aperiodic CSI and a first physical uplink control channel PUCCH resource for transmitting the aperiodic CSI;
the determining the second transmission resource for HARQ-ACK corresponding to the downlink DCI includes:
determining a second feedback timing of the HARQ-ACK and a second PUCCH resource for transmitting the HARQ-ACK;
wherein, the first feedback timing is different from the second feedback timing, and/or the first PUCCH resource is different from the second PUCCH resource.
The first feedback timing is an interval between a first time domain resource of downlink DCI triggering the aperiodic CSI and a second time domain resource for transmitting the aperiodic CSI.
The first time domain resource is a slot in which the downlink DCI triggering the aperiodic CSI is transmitted, and the second time domain resource is a slot in which the PUCCH for transmitting the aperiodic CSI is transmitted;
or, the first time domain resource is a last symbol of the downlink DCI triggering the aperiodic CSI, and the second time domain resource is a first symbol of the PUCCH transmitting the aperiodic CSI.
The first feedback timing is pre-configured by higher layer signaling, or is indicated by an aperiodic CSI feedback timing indication field in the downlink DCI,
or is indicated by an HARQ-ACK feedback timing indication field in the downlink DCI.
The first PUCCH resource is configured by higher layer signaling, or is indicated by an aperiodic CSI PUCCH resource indication field in the downlink DCI,
or is indicated by an HARQ-ACK resource indication field in the downlink DCI.
The receiving the aperiodic CSI on the first transmission resource and receiving the HARQ-ACK on the second transmission resource includes:
receiving the aperiodic CSI on a first PUCCH resource, and receiving the HARQ-ACK on a second PUCCH resource;
wherein, the first PUCCH resource and the second PUCCH resource are in a same slot, and do not overlap in the time domain;
or, the first PUCCH resource and the second PUCCH resource are in different slots.
In order to achieve the above object, some embodiments of the present disclosure further provide a terminal, including: a transceiver, a memory, a processor, and a program stored in the memory and executable by the processor, wherein the processor is configured to execute the program to implement following steps:
receiving downlink downlink control information (DCI) by using the transceiver, wherein the downlink DCI includes an aperiodic channel state information (CSI) trigger information field;
when the aperiodic CSI trigger information field in the downlink DCI indicates that aperiodic CSI is to be reported, determining a first transmission resource for the aperiodic CSI and a second transmission resource for a hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to the downlink DCI;
transmitting the aperiodic CSI on the first transmission resource and transmitting the HARQ-ACK on the second transmission resource.
The downlink DCI is at least one of:
DCI indicating semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH) release;
DCI scheduling PDSCH transmission.
When the downlink DCI is the DCI indicating the SPS PDSCH release, the HARQ-ACK corresponding to the downlink DCI is an HARQ-ACK corresponding to the DCI indicating the SPS PDSCH release;
when the downlink DCI is the DCI scheduling the PDSCH transmission, the HARQ-ACK corresponding to the downlink DCI is an HARQ-ACK of the PDSCH scheduled by the downlink DCI.
The processor is further configured to execute the program to implement following step:
determining a first feedback timing of the aperiodic CSI and a first physical uplink control channel (PUCCH) resource for transmitting the aperiodic CSI;
the processor is further configured to execute the program to implement following step:
determining a second feedback timing of the HARQ-ACK and a second PUCCH resource for transmitting the HARQ-ACK;
wherein, the first feedback timing is different from the second feedback timing, and/or the first PUCCH resource is different from the second PUCCH resource.
The first feedback timing is an interval between a first time domain resource of downlink DCI triggering the aperiodic CSI and a second time domain resource for transmitting the aperiodic CSI.
The first time domain resource is a slot in which downlink DCI triggering the aperiodic CSI is transmitted, and the second time domain resource is a slot in which the PUCCH for transmitting the aperiodic CSI is transmitted;
or, the first time domain resource is a last symbol of the downlink DCI triggering the aperiodic CSI, and the second time domain resource is a first symbol of the PUCCH transmitting the aperiodic CSI.
The first feedback timing is pre-configured by higher layer signaling, or is indicated by an aperiodic CSI feedback timing indication field in the downlink DCI,
or is indicated by an HARQ-ACK feedback timing indication field in the downlink DCI.
The first PUCCH resource is configured by higher layer signaling, or indicated by an aperiodic CSI PUCCH resource indication field in the downlink DCI,
or is indicated by an HARQ-ACK resource indication field in the downlink DCI.
The processor is further configured to execute the program to implement following steps:
transmitting the aperiodic CSI on a first PUCCH resource, and transmitting the HARQ-ACK on a second PUCCH resource;
wherein, the first PUCCH resource and the second PUCCH resource are in a same slot, and do not overlap in the time domain;
or, the first PUCCH resource and the second PUCCH resource are in different slots.
In order to achieve the above object, some embodiments of the present disclosure further provide a computer readable storage medium storing therein a computer program, wherein the computer program is configured to be executed by a processor to implement the steps of the foregoing information transmission method applied to a terminal side.
In order to achieve the above object, some embodiments of the present disclosure further provide a network device, including: a transceiver, a memory, a processor, and a program stored in the memory and executable by the processor, wherein the processor is configured to execute the program to implement following steps:
sending downlink downlink control information (DCI) by using the transceiver, wherein the downlink DCI includes an aperiodic channel state information (CSI) trigger information field;
when the aperiodic CSI trigger information field in the downlink DCI indicates that aperiodic CSI is to be reported, determining a first transmission resource for the aperiodic CSI and a second transmission resource for a hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to the downlink DCI;
receiving the aperiodic CSI on the first transmission resource and receiving the HARQ-ACK on the second transmission resource.
The downlink DCI is at least one of:
DCI indicating semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH) release;
DCI scheduling PDSCH transmission.
When the downlink DCI is the DCI indicating the SPS PDSCH release, the HARQ-ACK corresponding to the downlink DCI is an HARQ-ACK corresponding to the DCI indicating the SPS PDSCH release;
when the downlink DCI is the DCI scheduling the PDSCH transmission, the HARQ-ACK corresponding to the downlink DCI is an HARQ-ACK of the PDSCH scheduled by the downlink DCI.
The processor is further configured to execute the program to implement following step:
determining a first feedback timing of the aperiodic CSI and a first physical uplink control channel PUCCH resource for transmitting the aperiodic CSI;
the processor is further configured to execute the program to implement following step:
determining a second feedback timing of the HARQ-ACK and a second PUCCH resource for transmitting the HARQ-ACK;
wherein, the first feedback timing is different from the second feedback timing, and/or the first PUCCH resource is different from the second PUCCH resource.
The first feedback timing is an interval between a first time domain resource of downlink DCI triggering the aperiodic CSI and a second time domain resource for transmitting the aperiodic CSI.
The first time domain resource is a slot in which downlink DCI triggering the aperiodic CSI is transmitted, and the second time domain resource is a slot in which the PUCCH for transmitting the aperiodic CSI is transmitted;
or, the first time domain resource is a last symbol of the downlink DCI triggering the aperiodic CSI, and the second time domain resource is a first symbol of the PUCCH transmitting the aperiodic CSI.
The first feedback timing is pre-configured by higher layer signaling, or is indicated by an aperiodic CSI feedback timing indication field in the downlink DCI,
or is indicated by an HARQ-ACK feedback timing indication field in the downlink DCI.
The first PUCCH resource is configured by higher-layer signaling, or is indicated by an aperiodic CSI PUCCH resource indication field in the downlink DCI;
or, the first PUCCH resource is indicated by an HARQ-ACK resource indication field in the downlink DCI.
The processor is further configured to execute the program to implement following steps:
receiving the aperiodic CSI on a first PUCCH resource, and receiving the HARQ-ACK on a second PUCCH resource;
wherein, the first PUCCH resource and the second PUCCH resource are in a same slot, and do not overlap in the time domain;
or, the first PUCCH resource and the second PUCCH resource are in different slots.
In order to achieve the above object, some embodiments of the present disclosure further provide a computer readable storage medium, where a computer program is stored in the computer readable storage medium, when the computer program is executed by a processor, steps of the information transmission method applied to a network device as described above are implemented.
In order to achieve the above object, some embodiments of the present disclosure further provide a terminal, including:
a receiving module, configured to receive downlink downlink control information (DCI), wherein the downlink DCI includes an aperiodic channel state information (CSI) trigger information field;
a first determining module, configured to, when the aperiodic CSI trigger information field in the downlink DCI indicates that aperiodic CSI is to be reported, determine a first transmission resource for the aperiodic CSI and a second transmission resource for a hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to the downlink DCI;
a first transmission module, configured to transmit the aperiodic CSI on the first transmission resource and transmit the HARQ-ACK on the second transmission resource.
The downlink DCI is at least one of:
DCI indicating semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH) release;
DCI scheduling PDSCH transmission.
In order to achieve the above object, some embodiments of the present disclosure further provide a network device, including:
a sending module, configured to send downlink downlink control information (DCI), wherein the downlink DCI includes aperiodic channel state information (CSI) trigger information field;
a second determining module, configured to, when the aperiodic CSI trigger information field in the downlink DCI indicates that aperiodic CSI is to be reported, determine a first transmission resource for the aperiodic CSI and a second transmission resource for a hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to the downlink DCI;
a second transmission module, configured to receive the aperiodic CSI on the first transmission resource and receive the HARQ-ACK on the second transmission resource.
The downlink DCI is at least one of:
DCI indicating semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH) release;
DCI scheduling PDSCH transmission.
Some embodiments of the present disclosure have the following beneficial effects.
In the above technical solutions in some embodiments of the present disclosure, downlink downlink control information (DCI) is received, wherein the downlink DCI includes aperiodic channel state information (CSI) trigger information field; when the aperiodic CSI trigger information field in the downlink DCI indicates that aperiodic CSI is to be reported, a first transmission resource for the aperiodic CSI and a second transmission resource for a hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to the downlink DCI are determined; the aperiodic CSI is transmitted on the first transmission resource, and the HARQ-ACK is transmitted on the second transmission resource. Some embodiments of the present disclosure perform transmission of aperiodic CSI and transmission of HARQ-ACK independently, which can effectively avoid the impact on the transmission content of PUCCH carrying HARQ-ACK when the terminal fails to detect the DCI triggering the aperiodic report, and effectively improves system performance and transmission efficiency.
The Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms, without being limited by the embodiments described herein. Rather, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.
The terms “first”, “second” and the like in the specification and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a particular order or chronological order. It is to be understood that terms used in this way may be interchangeable under appropriate circumstances, so that embodiments of the present application described herein may be implemented in a sequence other than those illustrated or described herein. In addition, such terms as “comprise”, “have” and any variants thereof are intended to cover non-exclusive inclusions, for example, a process, a method, a system, a product, or a device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products or devices. Use of “and/or” in the description and claims represents at least one of connected objects.
The following description provides examples, and is not intended to limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For instance, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Also, features described with respect to certain examples may be combined in other examples.
Referring to
As shown in
Step 201: receiving downlink downlink control information (DCI), wherein the downlink DCI includes aperiodic channel state information (CSI) trigger information field.
Here, the aperiodic CSI trigger information field in the downlink DCI is used to indicate whether the terminal is to report aperiodic CSI (A-CSI).
In some embodiments of the present disclosure, the downlink DCI is at least one of the following:
DCI indicating semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH) release;
DCI scheduling PDSCH transmission.
Further, when the downlink DCI is the DCI indicating the SPS PDSCH release, the HARQ-ACK corresponding to the downlink DCI is an HARQ-ACK corresponding to the DCI indicating the SPS PDSCH release;
when the downlink DCI is the DCI scheduling the PDSCH transmission, the HARQ-ACK corresponding to the downlink DCI is an HARQ-ACK of the PDSCH scheduled by the downlink DCI.
Step 202: when the aperiodic CSI trigger information field in the downlink DCI indicates that aperiodic CSI is to be reported, determining a first transmission resource for the aperiodic CSI and a second transmission resource for a hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to the downlink DCI.
Here, the first transmission resource and the second transmission resource are two independently configured transmission resources. The terminal determines the transmission resource for the aperiodic CSI and the transmission resource for the HARQ-ACK corresponding to the downlink DCI separately, so as to realize independent transmission of the aperiodic CSI and the HARQ-ACK corresponding to the downlink DCI. The independent configuration here is at least manifested as the independent configuration of one of feedback timing and specific resource. The other of feedback timing and specific resource can be independently configured as well, but of course its configuration can be shared, that is, have same configuration.
Step 203: transmitting the aperiodic CSI on the first transmission resource, and transmitting the HARQ-ACK on the second transmission resource.
In the information transmission method according to some embodiments of the present disclosure, downlink downlink control information (DCI) is received, wherein the downlink DCI includes aperiodic channel state information (CSI) trigger information field; when the aperiodic CSI trigger information field in the downlink DCI indicates that aperiodic CSI is to be reported, a first transmission resource for the aperiodic CSI and a second transmission resource for a hybrid automatic repeat request acknowledgement HARQ-ACK corresponding to the downlink DCI are determined; the aperiodic CSI is transmitted on the first transmission resource, and the HARQ-ACK is transmitted on the second transmission resource. Some embodiments of the present disclosure perform independent transmission of aperiodic CSI and HARQ-ACK, which can effectively avoid the impact on the transmission content of PUCCH carrying HARQ-ACK when the terminal fails to detect the DCI triggering the aperiodic report, and effectively improves system performance and transmission efficiency.
Further, the determining a first transmission resource for the aperiodic CSI in the above step 202 includes:
determining a first feedback timing of the aperiodic CSI and a first physical uplink control channel (PUCCH) resource for transmitting the aperiodic CSI;
the determining a second transmission resource for HARQ-ACK corresponding to the downlink DCI in the above step 202 includes:
determining a second feedback timing of the HARQ-ACK and a second PUCCH resource for transmitting the HARQ-ACK;
wherein, the first feedback timing is different from the second feedback timing, and/or the first PUCCH resource is different from the second PUCCH resource.
The first feedback timing being different from the second feedback timing may refer to that the first feedback timing and the second feedback timing are in different slots, or in non-overlapping symbols of a same slot, such as, in a first half of a slot and a second half of the slot. The first PUCCH resource being different from the second PUCCH resource may refer to that the first PUCCH resource and the second PUCCH resource do not overlap in the time domain, and the non-overlap may be manifested as not being in the same slot, or manifested as being in non-overlapping symbols of a same slot.
Specifically, the first feedback timing is an interval between a first time domain resource of downlink DCI triggering the aperiodic CSI and a second time domain resource for transmitting the aperiodic CSI.
The first time domain resource is a slot in which downlink DCI triggering the aperiodic CSI is transmitted, and the second time domain resource is a slot in which the PUCCH for transmitting the aperiodic CSI is transmitted; at this time, the above interval is the slot interval between the slot in which the downlink DCI triggering the aperiodic CSI is transmitted and the slot in which the PUCCH transmitting the aperiodic CSI is transmitted. For example, it can be defined that the downlink DCI is in a slot n, if the aperiodic CSI trigger information field indicates that aperiodic CSI needs to be reported, the aperiodic CSI is reported in a slot n+k, where k is the first feedback timing.
Or, the first time domain resource is a last symbol of the downlink DCI triggering the aperiodic CSI, and the second time domain resource is a first symbol of the PUCCH transmitting the aperiodic CSI. At this time, the interval is a symbol interval between the last symbol of the downlink DCI triggering the aperiodic CSI and the first symbol of the PUCCH transmitting the aperiodic CSI.
In some embodiments of the present disclosure, the first feedback timing is pre-configured by higher layer signaling, or is indicated by an aperiodic CSI feedback timing indication field in the downlink DCI; when the first feedback timing is indicated by an aperiodic CSI feedback timing indication field in the downlink DCI, the aperiodic CSI feedback timing indicator field in the downlink DCI can directly indicate a first feedback timing value. Of course, the aperiodic CSI feedback timing indicator field can also indicate a value in the first feedback timing set pre-configured by higher layer signaling, for example, indicate a feedback timing value by indicating the number of each value in the pre-configured first feedback timing set.
Or, the first feedback timing is indicated by an HARQ-ACK feedback timing indication field in the downlink DCI. This case is equivalent to that the first feedback timing and the second feedback timing are the same. For example, the aperiodic CSI and the HARQ-ACK corresponding to the downlink DCI are transmitted in the same slot.
Specifically, when the first feedback timing and the second feedback timing are independently configured (the first feedback timing is independent of the second feedback timing), the first feedback timing is pre-configured by higher-layer signaling, or is indicated by the aperiodic CSI feedback timing indication field in the downlink DCI.
When the first feedback timing and the second feedback timing are the same, the first feedback timing is indicated by the HARQ-ACK feedback timing indication field in the downlink DCI. At this time, the first PUCCH resource is different from the second PUCCH resource.
In some embodiments of the present disclosure, the first PUCCH resource is configured by higher layer signaling, or is indicated by an aperiodic CSI PUCCH resource indication field in the downlink DCI,
or is indicated by the HARQ-ACK resource indication field in the downlink DCI.
Specifically, when the first PUCCH resource and the second PUCCH resource are independently configured (the first PUCCH resource is independent of the second PUCCH resource), the first PUCCH resource is configured by higher layer signaling, or is indicated by an aperiodic CSI PUCCH resource indication field in the downlink DCI. When the first PUCCH resource is indicated by the aperiodic CSI PUCCH resource indication field in the downlink DCI, the aperiodic CSI PUCCH resource indication field in the downlink DCI can directly indicate all relevant parameters of the PUCCH resource, or can indicate one PUCCH resource in a PUCCH resource set pre-configured by higher layer signaling. Specifically, the indication of one PUCCH resource can be realized by indicating a number of a PUCCH resource in the PUCCH resource set.
When the first PUCCH resource and the second PUCCH resource are the same, the first PUCCH resource is indicated by the HARQ-ACK resource indication field in the downlink DCI. At this time, the first feedback timing and the second feedback timing need to be different.
Further, the transmitting the aperiodic CSI on the first transmission resource and transmitting the HARQ-ACK on the second transmission resource includes:
transmitting the aperiodic CSI on a first PUCCH resource, and transmitting the HARQ-ACK on a second PUCCH resource;
wherein, the first PUCCH resource and the second PUCCH resource are in a same slot, and do not overlap in time domain;
or,
the first PUCCH resource and the second PUCCH resource are in different slots.
In the information transmission method according to some embodiments of the present disclosure, downlink downlink control information (DCI) is received, wherein the downlink DCI includes an aperiodic channel state information (CSI) trigger information field; when the aperiodic CSI trigger information field in the downlink DCI indicates that aperiodic CSI is to be reported, a first transmission resource for the aperiodic CSI and a second transmission resource for a hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to the downlink DCI are determined; the aperiodic CSI is transmitted on the first transmission resource, and the HARQ-ACK is transmitted on the second transmission resource. Some embodiments of the present disclosure perform independent transmission of aperiodic CSI and HARQ-ACK, which can effectively avoid the impact on the transmission content of PUCCH carrying HARQ-ACK when the terminal fails to detect the DCI triggering the aperiodic report, and effectively improves system performance and transmission efficiency.
As shown in
Step 301: sending downlink downlink control information (DCI), wherein the downlink DCI includes an aperiodic channel state information (CSI) trigger information field.
Here, the aperiodic CSI trigger information field in the downlink DCI is used to indicate whether the terminal is to report aperiodic CSI (A-CSI).
In some embodiments of the present disclosure, the downlink DCI is at least one of the following:
DCI indicating semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH) release;
DCI scheduling PDSCH transmission.
Further, when the downlink DCI is the DCI indicating the SPS PDSCH release, the HARQ-ACK corresponding to the downlink DCI is an HARQ-ACK corresponding to the DCI indicating the SPS PDSCH release;
when the downlink DCI is the DCI scheduling PDSCH transmission, the HARQ-ACK corresponding to the downlink DCI is an HARQ-ACK of the PDSCH scheduled by the downlink DCI.
Step 302: when the aperiodic CSI trigger information field in the downlink DCI indicates that aperiodic CSI is to be reported, determining a first transmission resource for the aperiodic CSI and a second transmission resource for a hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to the downlink DCI.
Here, the first transmission resource and the second transmission resource are two independently configured transmission resources. The network device determines the transmission resource for the aperiodic CSI and the transmission resource for the HARQ-ACK corresponding to the downlink DCI separately, so as to realize independent transmission of the aperiodic CSI and the HARQ-ACK corresponding to the downlink DCI. The independent configuration here is at least manifested as the independent configuration of one of feedback timing and specific resource. The other of feedback timing and specific resource can be independently configured as well, but of course its configuration can be shared, that is, have same configuration.
Step 303: receiving the aperiodic CSI on the first transmission resource, and receiving the HARQ-ACK on the second transmission resource.
In the information transmission method of some embodiments of the present disclosure, downlink downlink control information (DCI) is transmitted, wherein the downlink DCI includes an aperiodic channel state information (CSI) trigger information field; when the aperiodic CSI trigger information field in the downlink DCI indicates that aperiodic CSI is to be reported, a first transmission resource for the aperiodic CSI and a second transmission resource for a hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to the downlink DCI are determined; the aperiodic CSI is received on the first transmission resource, and the HARQ-ACK is received on the second transmission resource. Some embodiments of the present disclosure perform independent transmission of aperiodic CSI and HARQ-ACK, which can effectively avoid the impact on the transmission content of PUCCH carrying HARQ-ACK when the terminal fails to detect the DCI triggering the aperiodic report, and effectively improves system performance and transmission efficiency.
Further, the determining a first transmission resource for the aperiodic CSI in the above Step 302 includes:
determining a first feedback timing of the aperiodic CSI and a first physical uplink control channel PUCCH resource for transmitting the aperiodic CSI;
the determining a second transmission resource for HARQ-ACK corresponding to the downlink DCI in the above Step 302 includes:
determining a second feedback timing of the HARQ-ACK and a second physical uplink control channel PUCCH resource for transmitting the HARQ-ACK;
wherein, the first feedback timing is different from the second feedback timing, and/or the first PUCCH resource is different from the second PUCCH resource.
The first feedback timing being different from the second feedback timing may refer to that the first feedback timing and the second feedback timing are in different slots, or in non-overlapping symbols of a same slot, such as, in a first half of a slot and a second half of the slot. The first PUCCH resource being different from the second PUCCH resource may refer to that the first PUCCH resource and the second PUCCH resource do not overlap in the time domain, and the non-overlap may be manifested as not being in the same slot, or manifested as being in non-overlapping symbols of a same slot.
Specifically, the first feedback timing is an interval between a first time domain resource of downlink DCI triggering the aperiodic CSI and a second time domain resource for transmitting the aperiodic CSI.
The first time domain resource is a slot in which downlink DCI triggering the aperiodic CSI is transmitted, and the second time domain resource is a slot in which the PUCCH for transmitting the aperiodic CSI is transmitted; at this time, the above interval is the slot interval between the slot in which the downlink DCI triggering the aperiodic CSI is transmitted and the slot in which the PUCCH transmitting the aperiodic CSI is transmitted. For example, it may be defined that the downlink DCI is in a slot n, if the aperiodic CSI trigger information field in the downlink DCI indicates that aperiodic CSI needs to be reported, the aperiodic CSI is reported in a slot n+k, wherein k is the first feedback timing.
Or, the first time domain resource is a last symbol of the downlink DCI triggering the aperiodic CSI, and the second time domain resource is a first symbol of the PUCCH transmitting the aperiodic CSI. At this time, the interval is a symbol interval between the last symbol of the downlink DCI triggering the aperiodic CSI and the first symbol of the PUCCH transmitting the aperiodic CSI.
In some embodiments of the present disclosure, the first feedback timing is pre-configured by higher layer signaling, or is indicated by an aperiodic CSI feedback timing indication field in the downlink DCI; when the first feedback timing is indicated by the aperiodic CSI feedback timing indication field in the downlink DCI, the aperiodic CSI feedback timing indicator field in the downlink DCI can directly indicate a first feedback timing value. Of course, the aperiodic CSI feedback timing indicator field can also indicate a value in the first feedback timing set pre-configured by higher layer signaling, for example, indicate a feedback timing value by indicating the number of each value in the pre-configured first feedback timing set.
Or, the first feedback timing is indicated by an HARQ-ACK feedback timing indication field in the downlink DCI. This case is equivalent to that the first feedback timing and the second feedback timing are the same. For example, the aperiodic CSI and the HARQ-ACK corresponding to the downlink DCI are transmitted in the same slot.
Specifically, when the first feedback timing and the second feedback timing are independently configured (the first feedback timing is independent of the second feedback timing), the first feedback timing is pre-configured by higher-layer signaling, or is indicated by the aperiodic CSI feedback timing indication field in the downlink DCI.
When the first feedback timing and the second feedback timing are the same, the first feedback timing is indicated by the HARQ-ACK feedback timing indication field in the downlink DCI. At this time, the first PUCCH resource is different from the second PUCCH resource.
In some embodiments of the present disclosure, the first PUCCH resource is configured by higher layer signaling, or is indicated by an aperiodic CSI PUCCH resource indication field in the downlink DCI,
or is indicated by the HARQ-ACK resource indication field in the downlink DCI.
Specifically, when the first PUCCH resource and the second PUCCH resource are independently configured (the first PUCCH resource is independent of the second PUCCH resource), the first PUCCH resource is configured by higher layer signaling, or is indicated by an aperiodic CSI PUCCH resource indication field in the downlink DCI. When the first PUCCH resource is indicated by the aperiodic CSI PUCCH resource indication field in the downlink DCI, the aperiodic CSI PUCCH resource indication field in the downlink DCI can directly indicate all relevant parameters of the PUCCH resource, or can indicate one PUCCH resource in a PUCCH resource set pre-configured by higher layer signaling. Specifically, the indication of one PUCCH resource can be realized by indicating the number of a PUCCH resource in the PUCCH resource set. When the first PUCCH resource and the second PUCCH resource are the same, the first PUCCH resource is indicated by the HARQ-ACK resource indication field in the downlink DCI. At this time, the first feedback timing and the second feedback timing need to be different.
Further, the receiving the aperiodic CSI on the first transmission resource and receiving the HARQ-ACK on the second transmission resource, includes:
receiving the aperiodic CSI on a first PUCCH resource, and receiving the HARQ-ACK on a second PUCCH resource;
wherein, the first PUCCH resource and the second PUCCH resource are in a same slot, and do not overlap in the time domain;
or,
the first PUCCH resource and the second PUCCH resource are in different slots.
In the information transmission method according to some embodiments of the present disclosure, downlink downlink control information (DCI) is transmitted, wherein the downlink DCI includes an aperiodic channel state information (CSI) trigger information field; when the aperiodic CSI trigger information field in the downlink DCI indicates that aperiodic CSI is to be reported, a first transmission resource for the aperiodic CSI and a second transmission resource for a hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to the downlink DCI are determined; the aperiodic CSI is received on the first transmission resource, and the HARQ-ACK is received on the second transmission resource. Some embodiments of the present disclosure perform independent transmission of aperiodic CSI and HARQ-ACK, which can effectively avoid the impact on the transmission content of PUCCH carrying HARQ-ACK when the terminal fails to detect the DCI triggering the aperiodic report, and effectively improves system performance and transmission efficiency.
The information transmission methods of some embodiments of the present disclosure will be described below in conjunction with specific embodiments.
As shown in
Manner 1: it is pre-agreed that the feedback timing of aperiodic CSI is determined according to the HARQ-ACK feedback timing, that is, the feedback timing of aperiodic CSI (A-CSI) is the same as the feedback timing of HARQ-ACK. At this time, the feedback timing of aperiodic CSI can be determined in the way of determining the HARQ-ACK feedback timing, that is, it is always assumed that aperiodic CSI and HARQ-ACK are transmitted in the same slot, and no additional signaling is needed to indicate the feedback timing of aperiodic CSI; moreover, the base station pre-configures through higher layer signaling a PUCCH resource carrying aperiodic CSI in a slot (e.g., PUCCH resource 2 in
Manner 2: it is pre-agreed that the feedback timing of aperiodic CSI is determined according to the HARQ-ACK feedback timing, that is, the feedback timing of aperiodic CSI is the same as the feedback timing of HARQ-ACK. At this time, the feedback timing of aperiodic CSI can be determined in the way of determining the HARQ-ACK feedback timing, that is, it is always assumed that aperiodic CSI and HARQ-ACK are transmitted in the same slot, and no additional signaling is needed to indicate the feedback timing of aperiodic CSI; and the DCI contains a PUCCH resource indication field corresponding to aperiodic CSI, which is used to indicate the PUCCH resource carrying aperiodic CSI in a slot (e.g., PUCCH resource 2 in
Manner 3: the base station pre-configures the feedback timing of aperiodic CSI through higher layer signaling, for example, configures the feedback timing to 4 (that is, the same as the HARQ-ACK feedback timing), that is, indicates that the terminal is to perform aperiodic CSI feedback in slot n+4, and the base station pre-configures a PUCCH resource carrying aperiodic CSI in a slot through higher layer signaling (e.g., PUCCH resource 2 in
Manner 4: the base station pre-configures the feedback timing of aperiodic CSI through higher layer signaling, for example, configures the feedback timing to 4, that is, indicates that the terminal is to perform aperiodic CSI feedback in slot n+4, and the DCI contains a PUCCH resource indication field corresponding to aperiodic CSI, which is used to indicate the PUCCH resource carrying aperiodic CSI in a slot (e.g., PUCCH resource 2 in
Manner 5: the DCI includes the feedback time domain indication field corresponding to aperiodic CSI, for example, the base station indicates that the feedback timing of the aperiodic CSI is 4 through the feedback time domain indication field corresponding to the aperiodic CSI in the DCI, that is, indicates that the terminal is to perform aperiodic CSI feedback in slot n+4, and the base station pre-configures a PUCCH resource carrying aperiodic CSI in a slot through higher layer signaling (e.g., PUCCH resource 2 in
Manner 6: the DCI includes the feedback time domain indication field corresponding to aperiodic CSI, for example, the base station indicates that the feedback timing of the aperiodic CSI is 4 through the feedback time domain indication field corresponding to the aperiodic CSI in the DCI, that is, indicates that the terminal is to perform aperiodic CSI feedback in slot n+4, and the DCI further contains a PUCCH resource indication field corresponding to aperiodic CSI, which is used to indicate the PUCCH resource carrying aperiodic CSI in a slot (e.g., PUCCH resource 2 in
According to the above corresponding manners, the terminal can determine to transmit the HARQ-ACK on PUCCH resource 1 in slot n+4, and determine to transmit the aperiodic CSI on PUCCH resource 2 in slot n+4; in the same way, the base station can determine to receive HARQ-ACK on PUCCH resource 1 in slot n+4, and determine to receive aperiodic CSI on PUCCH resource 2 in slot n+4. Although PUCCH resource 1 and PUCCH resource 2 are in the same slot, because PUCCH resource 1 and PUCCH resource 2 do not overlap in the time domain and are independent PUCCH transmission, independent transmission of HARQ-ACK and aperiodic CSI is realized.
At this time, if HARQ-ACK of another PDSCH scheduled by DCI needs to be multiplexed with the HARQ-ACK of this PDSCH in the same PUCCH transmission, as shown in
Assuming that the base station uses same-slot scheduling, the base station sends DCI in slot n (the DCI transmission is carried on the PDCCH), the DCI schedules the PDSCH transmission in slot n, and the HARQ-ACK timing indication field in the DCI indicates that the HARQ-ACK feedback timing is 4, that is, the HARQ-ACK feedback information of the PDSCH in slot n needs to be transmitted in slot n+4, and the HARQ-ACK PUCCH resource indication field in the DCI indicates the specific PUCCH resource in slot n+4 (e.g., PUCCH resource 1 in
Manner 1: the base station pre-configures the aperiodic CSI feedback timing through higher layer signaling, for example, the aperiodic CSI feedback timing is configured to 5 (that is, it is different from the HARQ-ACK feedback timing, specifically, the base station can dynamically adjust the HARQ-ACK feedback timing so that the HARQ-ACK is in a different slot from the aperiodic CSI), that is, the base station indicates that the terminal is to perform aperiodic CSI feedback in slot n+5, which is different from the slot of HARQ-ACK feedback; and it is pre-agreed that the PUCCH resource for the aperiodic CSI is determined in the way of determining the PUCCH resource for HARQ-ACK, that is, the start symbol, transmission length, and frequency domain resource, etc. of the PUCCH resource for aperiodic CSI in the slot in which the aperiodic CSI is transmitted are the same as those of the PUCCH resource for HARQ-ACK (e.g., PUCCH resource 2 in
Manner 2: the base station pre-configures the aperiodic CSI feedback timing through higher layer signaling, for example, configures the aperiodic CSI feedback timing to 5 (that is, it is different from the HARQ-ACK feedback timing, specifically, the base station can dynamically adjust the HARQ-ACK feedback timing so that the HARQ-ACK is in a different slot from the aperiodic CSI), that is, the base station indicates that the terminal is to perform aperiodic CSI feedback in slot n+5, which is different from the slot of HARQ-ACK feedback; and the base station pre-configures through higher layer signaling a PUCCH resource carrying aperiodic CSI in a slot (e.g., PUCCH resource 2 in
Manner 3: the base station pre-configures the aperiodic CSI feedback timing through higher layer signaling, for example, configures the aperiodic CSI feedback timing to 5 (that is, it is different from the HARQ-ACK feedback timing, specifically, the base station can dynamically adjust the HARQ-ACK feedback timing so that the HARQ-ACK is in a different slot from the aperiodic CSI), that is, the base station indicates that the terminal is to perform aperiodic CSI feedback in slot n+5, which is different from the slot of HARQ-ACK feedback; and the DCI contains a PUCCH resource indication field corresponding to aperiodic CSI, which is used to indicate the PUCCH resource carrying aperiodic CSI in a slot (e.g., PUCCH resource 2 in
Manner 4: the DCI includes the feedback time domain indication field corresponding to aperiodic CSI, for example, the base station indicates that the feedback timing of the aperiodic CSI is 5 through the feedback time domain indication field corresponding to the aperiodic CSI in the DCI, that is, the base station indicates that the terminal is to perform aperiodic CSI feedback in slot n+5, which is different from the slot of HARQ-ACK feedback; and it is pre-agreed that the PUCCH resource for the aperiodic CSI is determined in the way of determining the PUCCH resource for HARQ-ACK, that is, the start symbol, transmission length, and frequency domain resource, etc. of the PUCCH resource for aperiodic CSI in the slot in which the aperiodic CSI is transmitted are the same as those of the PUCCH resource for HARQ-ACK (e.g., PUCCH resource 2 in
Manner 5: the DCI includes the feedback time domain indication field corresponding to aperiodic CSI, for example, the base station indicates that the feedback timing of the aperiodic CSI is 5 through the feedback time domain indication field corresponding to the aperiodic CSI in the DCI, that is, the base station indicates that the terminal is to perform aperiodic CSI feedback in slot n+5, which is different from the slot of HARQ-ACK feedback; and the base station pre-configures a PUCCH resource (e.g., PUCCH resource 2 in
Manner 6: the DCI includes the feedback time domain indication field corresponding to aperiodic CSI, for example, the base station indicates that the feedback timing of the aperiodic CSI is 5 through the feedback time domain indication field corresponding to the aperiodic CSI in the DCI, that is, the base station indicates that the terminal is to perform aperiodic CSI feedback in slot n+5, which is different from the slot of HARQ-ACK feedback; and the DCI contains a PUCCH resource indication field corresponding to aperiodic CSI, which is used to indicate the PUCCH resource carrying aperiodic CSI in a slot (e.g., PUCCH resource 2 in
According to the above corresponding manners, the terminal can determine to transmit the HARQ-ACK on PUCCH resource 1 in slot n+4, and determine to transmit the aperiodic CSI on PUCCH resource 2 in slot n+5; in the same way, the base station can determine to receive HARQ-ACK on PUCCH resource 1 in slot n+4, and determine to receive aperiodic CSI on PUCCH resource 2 in slot n+5. Since PUCCH resource 1 and PUCCH resource 2 are in different slots, it is obvious that they never overlap in the time domain, and are independent PUCCH transmission, that is, independent transmission of HARQ-ACK and aperiodic CSI are realized. At this time, if HARQ-ACK of another PDSCH scheduled by DCI needs to be multiplexed with the HARQ-ACK of this PDSCH in the same PUCCH transmission, as shown in
In the above embodiments, feedback timing is defined by taking slot as an example of the unit of feedback timing. The same is applicable when the feedback timing is defined in units of other durations, for example, mini-slot, half slot, etc.
As shown in
receiving downlink downlink control information (DCI), wherein the downlink DCI includes aperiodic channel state information (CSI) trigger information field;
when the aperiodic CSI trigger information field in the downlink DCI indicates that aperiodic CSI is to be reported, determining a first transmission resource for the aperiodic CSI and a second transmission resource for a hybrid automatic repeat request acknowledgement HARQ-ACK corresponding to the downlink DCI;
transmitting the aperiodic CSI on the first transmission resource and transmitting the HARQ-ACK on the second transmission resource.
In
The processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 600 when performing operations.
Optionally, the downlink DCI is at least one of the following:
DCI indicating semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH) release;
DCI scheduling PDSCH transmission.
Optionally, when the downlink DCI is the DCI indicating the SPS PDSCH release, HARQ-ACK corresponding to the downlink DCI is HARQ-ACK corresponding to the DCI indicating the SPS PDSCH release;
when the downlink DCI is the DCI scheduling PDSCH transmission, HARQ-ACK corresponding to the downlink DCI is HARQ-ACK of the PDSCH scheduled by the downlink DCI.
Optionally, the processor 600 is further configured to read the program in the memory 620 to perform the following step:
determining a first feedback timing of the aperiodic CSI and a first physical uplink control channel PUCCH resource for transmitting the aperiodic CSI.
Optionally, the processor 600 is further configured to read the program in the memory 620 to perform the following step:
determining a second feedback timing of the HARQ-ACK and a second physical uplink control channel (PUCCH) resource for transmitting the HARQ-ACK;
wherein, the first feedback timing is different from the second feedback timing, and/or the first PUCCH resource is different from the second PUCCH resource.
Optionally, the first feedback timing is an interval between a first time domain resource of downlink DCI triggering the aperiodic CSI and a second time domain resource for transmitting the aperiodic CSI.
Optionally, the first time domain resource is a slot in which downlink DCI triggering the aperiodic CSI is transmitted, and the second time domain resource is a slot in which the PUCCH for transmitting the aperiodic CSI is transmitted;
or, the first time domain resource is a last symbol of the downlink DCI triggering the aperiodic CSI, and the second time domain resource is a first symbol of the PUCCH transmitting the aperiodic CSI.
Optionally, the first feedback timing is pre-configured by higher layer signaling, or is indicated by an aperiodic CSI feedback timing indication field in the downlink DCI,
or is indicated by an HARQ-ACK feedback timing indication field in the downlink DCI.
Optionally, the first PUCCH resource is configured by higher layer signaling, or is indicated by an aperiodic CSI PUCCH resource indication field in the downlink DCI,
or is indicated by the HARQ-ACK resource indication field in the downlink DCI.
Optionally, the processor 600 is further configured to read the program in the memory 620 to perform the following steps:
transmitting the aperiodic CSI on a first PUCCH resource, and transmitting the HARQ-ACK on a second PUCCH resource;
wherein, the first PUCCH resource and the second PUCCH resource are in a same slot, and do not overlap in the time domain;
or, the first PUCCH resource and the second PUCCH resource are in different slots.
The terminal according to some embodiments of the present disclosure receives downlink downlink control information (DCI), wherein the downlink DCI includes aperiodic channel state information (CSI) trigger information field; when the aperiodic CSI trigger information field in the downlink DCI indicates that aperiodic CSI is to be reported, the terminal determines a first transmission resource for the aperiodic CSI and a second transmission resource for a hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to the downlink DCI; the terminal transmits the aperiodic CSI on the first transmission resource, and transmits the HARQ-ACK on the second transmission resource. Some embodiments of the present disclosure perform independent transmission of aperiodic CSI and HARQ-ACK, which can effectively avoid the impact on the transmission content of PUCCH carrying HARQ-ACK when the terminal fails to detect the DCI triggering the aperiodic report, and effectively improves system performance and transmission efficiency.
Some embodiments of the present disclosure further provide a computer readable storage medium, where a computer program is stored in the computer readable storage medium, when the computer program is executed by a processor, the following steps are implemented:
receiving downlink downlink control information (DCI), wherein the downlink DCI includes aperiodic channel state information (CSI) trigger information field;
when the aperiodic CSI trigger information field in the downlink DCI indicates that aperiodic CSI is to be reported, determining a first transmission resource for the aperiodic CSI and a second transmission resource for a hybrid automatic repeat request acknowledgement HARQ-ACK corresponding to the downlink DCI;
transmitting the aperiodic CSI on the first transmission resource and transmitting the HARQ-ACK on the second transmission resource.
When the program is executed by the processor, all implementations in the above-mentioned embodiments of information transmission method applied to the terminal side may be achieved, and the same technical effects may be achieved. To avoid repetition, details thereof are not described here.
As shown in
a receiving module 701, configured to receive downlink downlink control information (DCI), wherein the downlink DCI includes aperiodic channel state information (CSI) trigger information field;
a first determining module 702, configured to, when the aperiodic CSI trigger information field in the downlink DCI indicates that aperiodic CSI is to be reported, determine a first transmission resource for the aperiodic CSI and a second transmission resource for a hybrid automatic repeat request acknowledgement HARQ-ACK corresponding to the downlink DCI;
a first transmission module 703, configured to transmit the aperiodic CSI on the first transmission resource and transmit the HARQ-ACK on the second transmission resource.
In the terminal according to some embodiments of the present disclosure, the downlink DCI is at least one of the following:
DCI indicating semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH) release;
DCI scheduling PDSCH transmission.
In the terminal according to some embodiments of the present disclosure, when the downlink DCI is the DCI indicating the SPS PDSCH release, HARQ-ACK corresponding to the downlink DCI is an HARQ-ACK corresponding to the DCI indicating the SPS PDSCH release;
when the downlink DCI is the DCI scheduling PDSCH transmission, HARQ-ACK corresponding to the downlink DCI is an HARQ-ACK of the PDSCH scheduled by the downlink DCI.
In the terminal according to some embodiments of the present disclosure, the first determining module includes:
a first determining sub-module configured to determine a first feedback timing of the aperiodic CSI and a first physical uplink control channel PUCCH resource for transmitting the aperiodic CSI;
the first determining module further includes:
a second determining sub-module configured to determine a second feedback timing of the HARQ-ACK and a second physical uplink control channel PUCCH resource for transmitting the HARQ-ACK;
wherein, the first feedback timing is different from the second feedback timing, and/or the first PUCCH resource is different from the second PUCCH resource.
In the terminal according to some embodiments of the present disclosure, the first feedback timing is an interval between a first time domain resource of downlink DCI triggering the aperiodic CSI and a second time domain resource for transmitting the aperiodic CSI.
In the terminal according to some embodiments of the present disclosure, the first time domain resource is a slot in which downlink DCI triggering the aperiodic CSI is transmitted, and the second time domain resource is a slot in which the PUCCH for transmitting the aperiodic CSI is transmitted;
or, the first time domain resource is a last symbol of the downlink DCI triggering the aperiodic CSI, and the second time domain resource is a first symbol of the PUCCH transmitting the aperiodic CSI.
In the terminal according to some embodiments of the present disclosure, the first feedback timing is pre-configured by higher layer signaling, or is indicated by an aperiodic CSI feedback timing indication field in the downlink DCI,
or is indicated by an HARQ-ACK feedback timing indication field in the downlink DCI.
In the terminal according to some embodiments of the present disclosure, the first PUCCH resource is configured by higher layer signaling, or indicated by an aperiodic CSI PUCCH resource indication field in the downlink DCI,
or is indicated by the HARQ-ACK resource indication field in the downlink DCI.
In the terminal according to some embodiments of the present disclosure, the first transmission module is configured to transmit the aperiodic CSI on the first PUCCH resource, and transmit the HARQ-ACK on the second PUCCH resource;
wherein, the first PUCCH resource and the second PUCCH resource are in a same slot, and do not overlap in the time domain;
or,
the first PUCCH resource and the second PUCCH resource are in different slots.
The terminal according to some embodiments of the present disclosure receives downlink downlink control information (DCI), wherein the downlink DCI includes aperiodic channel state information (CSI) trigger information field; when the aperiodic CSI trigger information field in the downlink DCI indicates that aperiodic CSI is to be reported, the terminal determines a first transmission resource for the aperiodic CSI and a second transmission resource for a hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to the downlink DCI; the terminal transmits the aperiodic CSI on the first transmission resource, and transmits the HARQ-ACK on the second transmission resource. Some embodiments of the present disclosure perform independent transmission of aperiodic CSI and HARQ-ACK, which can effectively avoid the impact on the transmission content of PUCCH carrying HARQ-ACK when the terminal fails to detect the DCI triggering the aperiodic report, and effectively improves system performance and transmission efficiency.
As shown in
sending downlink downlink control information (DCI) by using the transceiver, wherein the downlink DCI includes aperiodic channel state information (CSI) trigger information field;
when the aperiodic CSI trigger information field in the downlink DCI indicates that aperiodic CSI is to be reported, determining a first transmission resource for the aperiodic CSI and a second transmission resource for a hybrid automatic repeat request acknowledgement HARQ-ACK corresponding to the downlink DCI;
receiving the aperiodic CSI on the first transmission resource and receiving the HARQ-ACK on the second transmission resource.
In
Optionally, the downlink DCI is at least one of the following:
DCI indicating semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH) release;
DCI scheduling PDSCH transmission.
Optionally, when the downlink DCI is the DCI indicating the SPS PDSCH release, HARQ-ACK corresponding to the downlink DCI is an HARQ-ACK corresponding to the DCI indicating the SPS PDSCH release;
when the downlink DCI is the DCI scheduling PDSCH transmission, HARQ-ACK corresponding to the downlink DCI is an HARQ-ACK of the PDSCH scheduled by the downlink DCI.
Optionally, the processor is further configured to execute the program to implement following step:
determining a first feedback timing of the aperiodic CSI and a first physical uplink control channel (PUCCH) resource for transmitting the aperiodic CSI;
the processor is further configured to execute the program to implement following step:
determining a second feedback timing of the HARQ-ACK and a second physical uplink control channel (PUCCH) resource for transmitting the HARQ-ACK;
wherein, the first feedback timing is different from the second feedback timing, and/or the first PUCCH resource is different from the second PUCCH resource.
Optionally, the first feedback timing is an interval between a first time domain resource of downlink DCI triggering the aperiodic CSI and a second time domain resource for transmitting the aperiodic CSI.
Optionally, the first time domain resource is a slot in which downlink DCI triggering the aperiodic CSI is transmitted, and the second time domain resource is a slot in which the PUCCH for transmitting the aperiodic CSI is transmitted;
or, the first time domain resource is a last symbol of the downlink DCI triggering the aperiodic CSI, and the second time domain resource is a first symbol of the PUCCH transmitting the aperiodic CSI.
Optionally, the first feedback timing is pre-configured by higher layer signaling, or is indicated by an aperiodic CSI feedback timing indication field in the downlink DCI,
or is indicated by an HARQ-ACK feedback timing indication field in the downlink DCI.
Optionally, the first PUCCH resource is configured by higher layer signaling, or is indicated by an aperiodic CSI PUCCH resource indication field in the downlink DCI,
or is indicated by the HARQ-ACK resource indication field in the downlink DCI.
Optionally, when the processor 800 executes the program, the following steps are further implemented:
receiving the aperiodic CSI on a first PUCCH resource, and receiving the HARQ-ACK on a second PUCCH resource;
wherein, the first PUCCH resource and the second PUCCH resource are in a same slot, and do not overlap in the time domain;
or,
the first PUCCH resource and the second PUCCH resource are in different slots.
Some embodiments of the present disclosure further provide a computer readable storage medium, where a computer program is stored in the computer readable storage medium, when the computer program is executed by a processor, the following steps are implemented:
sending downlink downlink control information (DCI), wherein the downlink DCI includes aperiodic channel state information (CSI) trigger information field;
when the aperiodic CSI trigger information field in the downlink DCI indicates that aperiodic CSI is to be reported, determining a first transmission resource for the aperiodic CSI and a second transmission resource for a hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to the downlink DCI;
receiving the aperiodic CSI on the first transmission resource, and receiving the HARQ-ACK on the second transmission resource.
When the program is executed by the processor, all implementations in the above-mentioned embodiments of information transmission method applied to the network device side may be achieved, and the same technical effects may be achieved. To avoid repetition, details thereof are not described here.
As shown in
a sending module 901, configured to send downlink downlink control information (DCI), wherein the downlink DCI includes aperiodic channel state information (CSI) trigger information field;
a second determining module 902, configured to, when the aperiodic CSI trigger information field in the downlink DCI indicates that aperiodic CSI is to be reported, determine a first transmission resource for the aperiodic CSI and a second transmission resource for a hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to the downlink DCI;
a second transmission module 903, configured to receive the aperiodic CSI on the first transmission resource and receive the HARQ-ACK on the second transmission resource.
In the network device according to some embodiments of the present disclosure, the downlink DCI is at least one of the following:
DCI indicating semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH) release;
DCI scheduling PDSCH transmission.
In the network device according to some embodiments of the present disclosure, when the downlink DCI is the DCI indicating the SPS PDSCH release, HARQ-ACK corresponding to the downlink DCI is an HARQ-ACK corresponding to the DCI indicating the SPS PDSCH release;
when the downlink DCI is the DCI scheduling PDSCH transmission, HARQ-ACK corresponding to the downlink DCI refers to an HARQ-ACK of the PDSCH scheduled by the downlink DCI.
In the network device according to some embodiments of the present disclosure, the second determining module includes:
a third determining sub-module configured to determine a first feedback timing of the aperiodic CSI and a first physical uplink control channel (PUCCH) resource for transmitting the aperiodic CSI;
the second determining module further includes:
a fourth determining sub-module configured to determine a second feedback timing of the HARQ-ACK and a second PUCCH resource for transmitting the HARQ-ACK;
wherein, the first feedback timing is different from the second feedback timing, and/or the first PUCCH resource is different from the second PUCCH resource.
In the network device according to some embodiments of the present disclosure, the first feedback timing is an interval between a first time domain resource of downlink DCI triggering the aperiodic CSI and a second time domain resource for transmitting the aperiodic CSI.
In the network device according to some embodiments of the present disclosure, the first time domain resource is a slot in which downlink DCI triggering the aperiodic CSI is transmitted, and the second time domain resource is a slot in which the PUCCH for transmitting the aperiodic CSI is transmitted;
or, the first time domain resource is a last symbol of the downlink DCI triggering the aperiodic CSI, and the second time domain resource is a first symbol of the PUCCH transmitting the aperiodic CSI.
In the network device according to some embodiments of the present disclosure, the first feedback timing is pre-configured by higher layer signaling, or is indicated by an aperiodic CSI feedback timing indication field in the downlink DCI,
or is indicated by an HARQ-ACK feedback timing indication field in the downlink DCI.
In the network device according to some embodiments of the present disclosure, the first PUCCH resource is configured by higher layer signaling, or is indicated by an aperiodic CSI PUCCH resource indication field in the downlink DCI,
or is indicated by the HARQ-ACK resource indication field in the downlink DCI.
In the network device according to some embodiments of the present disclosure, the second transmission module is configured to transmit the aperiodic CSI on the first PUCCH resource, and transmit the HARQ-ACK on the second PUCCH resource;
wherein, the first PUCCH resource and the second PUCCH resource are in a same slot, and do not overlap in the time domain;
or, the first PUCCH resource and the second PUCCH resource are in different slots.
The network device according to some embodiments of the present disclosure transmits downlink downlink control information (DCI), wherein the downlink DCI includes aperiodic channel state information (CSI) trigger information field; when the aperiodic CSI trigger information field in the downlink DCI indicates that aperiodic CSI is to be reported, the network device determines a first transmission resource for the aperiodic CSI and a second transmission resource for a hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to the downlink DCI; the network device receives the aperiodic CSI on the first transmission resource and receives the HARQ-ACK on the second transmission resource. Some embodiments of the present disclosure perform independent transmission of aperiodic CSI and HARQ-ACK, which can effectively avoid the impact on the transmission content of PUCCH carrying HARQ-ACK when the terminal fails to detect the DCI triggering the aperiodic report, and effectively improves system performance and transmission efficiency.
It should be understood that sequence numbers of the foregoing processes do not imply execution sequences of the processes in the embodiments of the present disclosure. The execution sequences of the processes should be determined according to functions and internal logic of the processes, and the sequence numbers should not be construed as any limitation on the implementation processes of the embodiments of this disclosure.
The foregoing descriptions are some implementations of the present disclosure. It should be noted that persons of ordinary skill in the art may make several improvements or modifications without departing from the principle of the present disclosure, and the improvements and modifications shall fall within the scope of the present disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201910009124.9 | Jan 2019 | CN | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2020/070229 | 1/3/2020 | WO | 00 |
