Patent Application
20250158861
The present disclosure relates to the technical field of communication, in particular to a data transmission method and apparatus, and a storage medium.
For service scenarios such as wide coverage, a relatively long cyclic prefix (CP) is required to scramble or descramble transmitted data to protect data. However, in a current 5G (5th Generation Mobile Communication Technology) New Radio (NR) system, only the 60 kHz (kilohertz) Sub-Carrier Spacing (SCS) supports an extended cyclic prefix (eCP). Further, based on a protocol convention, CP is configured according to Bandwith Part (BWP), that is, BWP can only use a pre-configured type of CP for data transmission.
When a multicast broadcast service (MBS) or other services require the use of extended CP for transmission, transmission can only be performed by 60 kHz BWP. At the same time, considering that the terminal needs to detect and receive broadcast Physical Downlink Control Channels (PDCCHs), broadcast Physical Downlink Shared Channels (PDSCHs), unicast PDCCHs, unicast PDSCHs, or Release-17 (Rel-17) MBS related channels on a BWP with a normal cyclic prefix (NCP), the terminal must switch between different BWPs, resulting in scheduling limitations and transmission latency. In addition, during BWP switching, the network side and the terminal side cannot transmit and receive data, which also causes transmission latency and reduces system performance.
To overcome the problems in the related art, in embodiments of the present disclosure, a data transmission method and apparatus, and a storage medium are provided.
According to the first aspect of the embodiments of the present disclosure, a data transmission method is provided, where the method is performed by a terminal, and includes:
In some embodiments, the indication information is configured to configure types of CPs corresponding to one or more specific frequency domain resources within the specified BWP.
In some embodiments, the indication information is configured to configure a frequency domain resource range for using an extended cyclic prefix (eCP) within the specified BWP.
In some embodiments, the indication information includes at least one of:
In some embodiments, the indication information is configured to configure an anchor RB corresponding to an eCP within the specified BWP.
In some embodiments, the indication information includes an RB index of the anchor RB;
In some embodiments, the preset RB is a first RB or a last RB on the specified BWP.
In some embodiments, the indication information is configured to configure a plurality of common frequency resources (CFRs) using different types of CPs.
In some embodiments, the indication information includes at least one of:
In some embodiments, the indication information is configured to configure types of CPs corresponding to different frequency domain resource granularities within the specified BWP.
In some embodiments, the indication information is bitmap information; and
In some embodiments, each of the frequency domain resource granularities includes one or more RBs, where the RBs are continuous RBs or discrete RBs.
In some embodiments, the method further includes:
In some embodiments, the indication information is configured to configure types of CPs corresponding to one or more specific time domain resources within the specified BWP, where a size of one or more specific time domain resources is measured in a unit of an orthogonal frequency division multiplexing (OFDM) symbol, a time slot, or a predefined time length.
In some embodiments, the indication information is bitmap information; and
In some embodiments, the indication information includes:
In some embodiments, when the size of the one or more specific time domain resources is in the unit of the time slot or the predefined time length, the indication information includes at least one of:
In some embodiments, the receiving the indication information transmitted by the base station includes:
In some embodiments, the indication information is configured based on each specified BWP, or the indication information is configured based on each cell.
According to the second aspect of the embodiments of the present disclosure, a data transmission method is provided. The method is performed by a base station, and includes:
In some embodiments, the indication information is configured to configure types of CPs corresponding to one or more specific frequency domain resources within the specified BWP.
In some embodiments, the indication information is configured to configure a frequency domain resource range for using an extended cyclic prefix (eCP) within the specified BWP.
In some embodiments, the indication information includes at least one of:
In some embodiments, the indication information is configured to configure an anchor RB corresponding to an eCP within the specified BWP.
In some embodiments, the indication information includes an RB index of the anchor RB;
In some embodiments, the indication information is configured to configure a plurality of common frequency resources (CFRs) using different types of CPs.
In some embodiments, the indication information includes at least one of:
In some embodiments, the indication information is configured to configure types of CPs corresponding to different frequency domain resource granularities within the specified BWP.
In some embodiments, the indication information is bitmap information; and
In some embodiments, each of the frequency domain resource granularities includes one or more RBs, where the RBs are continuous RBs or discrete RBs.
In some embodiments, the method further includes:
In some embodiments, the indication information is configured to configure types of CPs corresponding to one or more specific time domain resources within the specified BWP, where a size of one or more specific time domain resources is measured in a unit of an orthogonal frequency division multiplexing (OFDM) symbol, a time slot, or a predefined time length.
In some embodiments, the indication information is bitmap information; and
In some embodiments, the indication information includes at least one of:
In some embodiments, the indication information includes at least one of:
In some embodiments, the transmitting the indication information to the terminal includes:
In some embodiments, the indication information is configured based on each specified BWP, or the indication information is configured based on each cell.
According to the third aspect of the embodiments of the present disclosure, a data transmission apparatus is provided. The apparatus is applied to a terminal, and includes:
According to the fourth aspect of the embodiments of the present disclosure, a data transmission apparatus is provided. The apparatus is applied to a base station, and includes:
According to the fifth aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided, storing a computer program, where the computer program is configured to execute the data transmission method at the terminal side according to the any one described above.
According to the sixth aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided, storing a computer program, where the computer program is configured to execute the data transmission method at the base station side according to the any one described above.
According to the seventh aspect of the embodiments of the present disclosure, a data transmission device is provided, and includes:
According to the eighth aspect of the embodiments of the present disclosure, a data transmission device is provided, and includes:
The technical solutions provided by the embodiments of the present disclosure can include following beneficial effects.
In the present disclosure, the base station can configure the types of CPs corresponding to different resources within the specified BWP, where the specified BWP is a BWP that needs to support multiple types of CPs at the same time, The terminal side can use multiple types of CPs for data transmission on the same BWP, avoiding frequent BWP switching by the terminal, reducing scheduling restrictions on the network side, reducing data transmission latency, and improving system transmission performance.
It is to be understood that the above general descriptions and the below detailed descriptions are merely exemplary and explanatory, and are not intended to limit the present disclosure.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate examples consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.
Embodiments will be described in detail here with the examples thereof expressed in the drawings. When the following descriptions involve the drawings, like numerals in different drawings represent like or similar elements unless stated otherwise. Implementations described in the following embodiments do not represent all implementations consistent with the present disclosure. On the contrary, they are examples of an apparatus and a method consistent with some aspects of the present disclosure described in detail in the appended claims.
The term used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to limit the present disclosure. As used in the present disclosure and the appended claims, the singular forms “a” “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should further be understood that the term “and/or” as used herein refers to and includes any and all possible combinations of at least one of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word “if” as used herein can be interpreted as “upon”, “when” or “in response to determining”.
At present, in the protocol conventions, only when the SCS is 60 kHz, an eCP can be supported. When SCS is other values, only NCP is supported.
Referring to Table 1, Table 1 shows the number of OFDM (Orthogonal Frequency Division Multiplexing) symbols per slot for a normal cyclic prefix, the number of slots per frame for a normal cyclic prefix, and the number of slots per subframe for a normal cyclic prefix.
Referring to Table 2, Table 2 shows the number of OFDM symbols per slot for an extended cyclic prefix, the number of slots per frame for an extended cyclic prefix, and the number of slots per subframe for an extended cyclic prefix.
In addition, the current protocol further agrees on that each BWP can only be configured with one CP, and the configuration signaling is as follows:
For terminals, a wide coverage service scenario requires configuring eCP to support a larger coverage radius. If the terminal needs to receive both wide area coverage type services and traditional type services at the same time, the terminal needs to switch between different BWPs. For example, as shown in
Considering that in a future mobile communication system, the terminal needs to support both NCP and eCP at the same time, the present disclosure provides the following data transmission method, which can effectively avoid the problem of system performance degradation caused by frequent BWP switching of the terminal.
The data transmission method provided in the present disclosure is introduced first from the terminal side.
The embodiments of the present disclosure provide a data transmission method, as shown in
In step 201, indication information transmitted by a base station is received.
In the embodiments of the present disclosure, the indication information is configured to configure the types of CPs corresponding to different resources within a specified BWP. The specified BWP can be a BWP that needs to support multiple types of CPs at the same time.
In an embodiment, multiple types of CPs include but are not limited to NCP and eCP, which is not limited in the present disclosure.
In an embodiment, the terminal side can determine that a BWP belongs to a specified BWP based on the following reasons:
In step 202, based on the indication information, the corresponding types of CPs are used on the different resources within the specified BWP, to transmit data with the base station.
In the above embodiments, the terminal side can use multiple types of CPs for data transmission on the same BWP without the need for BWP switching, avoiding frequent BWP switching by the terminal, reducing scheduling restrictions on the network side, reducing data transmission latency, and improving system transmission performance.
In some embodiments, the indication information transmitted by the base station can be used to configure the CP type(s) corresponding to one or more specific frequency domain resources within the specified BWP. That is, a type of a CP is determined based on frequency division multiplexing (FDM) within the specified BWP. In an embodiment, the indication information is configured to configure a frequency domain resource range for using an extended cyclic prefix (eCP) within the specified BWP.
As shown in
At step 301, indication information transmitted by a base station is received.
In the embodiments of the present disclosure, the indication information can be configured using Start Indication Length Value (SILV) to specify the frequency domain resource range for using the extended cyclic prefix (eCP) within the BWP.
Specifically, the indication information may include but is not limited to at least one of: the Resource Block (RB) index of the starting Resource Block (RB) using the eCP within the specified BWP; or the number of RBs using eCP within the specified BWP.
In step 302, the eCP is used on RBs of the number of consecutive RBs starting from a starting RB within the specified BWP, to transmit data with the base station; and a normal cyclic prefix (NCP) is used on other RBs within the specified BWP, to transmit data with the base station.
In the above embodiments, SILV can be used to configure at least one of the RB index of the starting RB using eCP within a specified BWP, or the number of RBs using eCP within a specified BWP. Thereby the frequency domain range for data transmission using eCP within the specified BWP is determined, and other RBs belong to a frequency domain range for data transmission using NCP. It is achieved that multiple types of CPs for data transmission on the same BWP can be used, avoiding frequent BWP switching by the terminal, reducing scheduling restrictions on the network side, reducing data transmission latency, and improving system transmission performance.
In an embodiment, the indication information can be used to configure an anchor RB corresponding to the eCP within a specified BWP.
As shown in
In step 401, indication information transmitted by a base station is received.
In the embodiments of the present disclosure, the indication information may include the RB index of the anchor RB.
In step 402, an eCP is used on RBs between a preset RB and the anchor RB within the specified BWP, to transmit data with the base station; and an NCP is used on other RBs within the specified BWP, to transmit data with the base station.
In the embodiments of the present disclosure, the preset RB may be one of the Rbs within the specified BWPs pre-agreed upon by a protocol, or the preset RB may be one of RBs within the specified BWPs configured by the base station through signaling (or signals) or other means. In some embodiments, the preset RB can be the first RB or the last RB on the specified BWP.
The terminal determines the RBs between the preset RB and the anchor RB as the frequency domain range for data transmission using the eCP, and determines other RBs as the frequency domain range for NCP.
In the above embodiment, it is also achieved that multiple types of CPs for data transmission on the same BWP can be used, avoiding frequent BWP switching by the terminal, reducing scheduling restrictions on the network side, reducing data transmission latency, and improving system transmission performance.
In an embodiment, the indication information can be used to configure multiple Common Frequency Resources (CFRs) using different types of CPs.
As shown in
In step 501, indication information transmitted by a base station is received.
In the embodiments of the present disclosure, the indication information may include but is not limited to at least one of the following: CFR configuring information; or CP type indication information corresponding to the CFRs.
It should be noted that in the embodiments of the present disclosure, CFR can be used for transmission in multicast or broadcast related channels, such as for transmitting MBS services. The present disclosure does not limit the configuration of CFR.
In step 502, CPs indicated by CP type indication information are used on different CFRs of the specified BWP, to transmit data with the base station.
For example, the base station configures CFR #1 and CFR #2 through the indication information, and the corresponding CP type indication information respectively indicates eCP and NCP, then the terminal uses eCP on CFR #1 within the specified BWP to transmit data with the base station, and uses NCP on CFR #2 within the specified BWP to transmit data with the base station.
In the above embodiment, it is achieved that multiple types of CPs for data transmission on the same BWP can be used, avoiding frequent BWP switching by the terminal, reducing scheduling restrictions on the network side, reducing data transmission latency, and improving system transmission performance.
In another embodiment, the indication information can be configured to configure types of CPs corresponding to different frequency domain resource granularities within the specified BWP.
It should be noted that the terminal can determine the RB(s) contained in each frequency domain resource granularity based on the protocol agreement, or the terminal can determine the RB(s) contained in each frequency domain resource granularity based on specified signaling transmitted by the base station.
The specified signaling can include but is not limited to RRC (Radio Resource Control) signals, system information, or multicast broadcast service multicast control channel (MBS-MCCH), etc. The system information can be SIB1 or SIBx, which is not limited in the present disclosure.
The specified signaling can directly indicate the RB(s) contained in each frequency domain resource granularity in an explicit manner. Alternatively, the specified signaling can implicitly indicate the RBs contained in each frequency domain resource granularity, which is not limited in the present disclosure.
Furthermore, each of the frequency domain resource granularities includes RBs, where the RBs are continuous RBs or discrete RBs.
As shown in
In step 601, indication information transmitted by a base station is received.
In the embodiments of the present disclosure, the indication information may be bitmap information. The bitmap information can be configured based on BWP level or CFR level. That is, the base station configures the corresponding bitmap information for each specified BWP, or the base station configures the corresponding bitmap information for each CFR within each specified BWP, which is not limited in the present disclosure.
In step 602, one or more eCPs are used on a frequency domain resource granularity corresponding to a first bit value within the specified BWP, to transmit data with the base station; and one or more NCPs are used on a frequency domain resource granularity corresponding to a second bit value within the specified BWP, to transmit data with the base station.
In the embodiments of the present disclosure, the first bit value may be 1, and correspondingly, the second bit value may be 0. Alternatively, the first bit value may be 0, and the second bit value may be 1.
For example, if the indication information is 1001, the first bit value is 1, and the second bit value is 0, the terminal can use eCP on the first and fourth frequency domain resource granularities of the specified BWP to transmit data with the base station, and use NCP on the second and third frequency domain resource granularities to transmit data with the base station.
In the above embodiment, it is achieved that multiple types of CPs for data transmission on the same BWP can be used, avoiding frequent BWP switching by the terminal, reducing scheduling restrictions on the network side, reducing data transmission latency, and improving system transmission performance.
It should be noted that in the above embodiments, the eCP can also be replaced with NCP, and the method of data transmission between the terminal and the base station based on the indication information is similar to the specific process of the above embodiments, and will not be repeated here.
In some embodiments, the indication information is configured to configure types of CPs corresponding to one or more specific time domain resources within the specified BWP. That is, a type of a CP is determined based on time division multiplexing (TDM) within the specified BWP.
In an embodiment, specifically, a size of one or more specific time domain resources is measured in a unit of an orthogonal frequency division multiplexing (OFDM) symbol, a time slot, or a predefined time length.
The predefined time length can be configured by the base station or agreed upon by the protocol, which is not limited in the present disclosure.
As shown in
In step 701, indication information transmitted by a base station is received.
In the embodiments of the present disclosure, the indication information may be bitmap information. The bitmap information can be configured based on each time domain resource.
In step 702, an eCP is used on a time domain resource corresponding to a first bit value within the specified BWP, to transmit data with the base station; and an NCP is used on a time domain resource corresponding to a second bit value within the specified BWP, to transmit data with the base station.
In the embodiments of the present disclosure, the first bit value may be 1, and correspondingly, the second bit value may be 0. Alternatively, the first bit value may be 0, and the second bit value may be 1.
For example, if the indication information is 1001, the first bit value is 1, and the second bit value is 0, the terminal can use eCP on the first and fourth time domain resources of the specified BWP to transmit data with the base station, and use NCP on the second and third time domain resources to transmit data with the base station. A size of the time domain resource is in a unit of an OFDM symbol, a time slot, or a predefined time length, which is not limited in the present disclosure.
In the above embodiment, it is achieved that multiple types of CPs for data transmission on the same BWP can be used, avoiding frequent BWP switching by the terminal, reducing scheduling restrictions on the network side, reducing data transmission latency, and improving system transmission performance.
In another embodiment, the indication information can be configured using SILV.
As shown in
In step 801, indication information transmitted by a base station is received.
In the embodiments of the present disclosure, the indication information may include but is not limited to at least one of: a time domain resource index of a starting time domain resource using an eCP within the specified BWP; or a number of time domain resources using an eCP within the specified BWP.
In step 802, the eCP is used on time domain resources of the number of consecutive time domain resources starting from a starting time domain resource within the specified BWP, to transmit data with the base station; and an NCP is used on other time domain resources within the specified BWP, to transmit data with the base station.
In the embodiments of the present disclosure, the size of the time domain resource is measured in a unit of an OFDM symbol, a time slot, or a predefined time length.
In the above embodiment, it is achieved that multiple types of CPs for data transmission on the same BWP can be used, avoiding frequent BWP switching by the terminal, reducing scheduling restrictions on the network side, reducing data transmission latency, and improving system transmission performance.
In another embodiment, when the size of the one or more specific time domain resources is measured in the unit of the time slot or the predefined time length, the indication information includes at least one of: period information; or CP type indication information corresponding to each of the one or more time domain resources within each period.
The terminal can periodically determine the CP indicated by the CP type indication information on each time domain resource based on the indication information, and then transmit data with the base station based on the CP.
In the above embodiment, it is also achieved that multiple types of CPs for data transmission on the same BWP can be used, avoiding frequent BWP switching by the terminal, reducing scheduling restrictions on the network side, reducing data transmission latency, and improving system transmission performance.
In some embodiments, the terminal may receive a radio resource control (RRC) signal including the indication information transmitted by the base station; or receive system information including the indication information transmitted by the base station, where the system information may be SIB1 or SIBx, which is not limited in the present disclosure. Alternatively, the terminal can receive an MBS-MCCH including the indication information transmitted by the base station.
In the above embodiments, the terminal can receive the indication information transmitted by the base station through the above methods, thereby supporting multiple types of CPs on the same BWP, avoiding frequent switching of BWPs by the terminal, avoiding transmission latency caused by switching BWPs, and thus improving the system transmission performance.
In some embodiments, the indication information can be configured based on each specified BWP, or the indication information can be configured based on each cell.
The indication information is configured based on each cell, that is, in the case where the indication information is a cell specific configuration, the types of CPs corresponding to different resources indicated by the indication information can be applied to all specified BWPs within the cell.
In the above embodiments, the configuration of indication information can be based on each specified BWP or on each cell, which is easy to implement and has high availability.
The data transmission method provided in the embodiments of the present disclosure is introduced from the base station side below.
The embodiments of the present disclosure provide a data transmission method, as shown in
In step 901, indication information is transmitted to the terminal.
In the embodiments of the present disclosure, the indication information is configured to configure the types of CPs corresponding to different resources within a specified BWP. The specified BWP can be a BWP that needs to support multiple types of CPs at the same time.
In an embodiment, multiple types of CPs include but are not limited to NCP and eCP, which is not limited in the present disclosure.
In step 902, based on the indication information, the corresponding types of CPs are used on the different resources within the specified BWP, to transmit data with the terminal.
In the above embodiments, the base station can configure the types of CPs corresponding to different resources within the specified BWP through indication information. Furthermore, the base station can use the corresponding types of CPs on the different resources within the specified BWP based on the indication information, to transmit data with the terminal, which improves system performance.
In some embodiments, the indication information transmitted by the base station can be used to configure the one or more types of one or more CPs corresponding to one or more specific frequency domain resources within the specified BWP. That is, a type of a CP is determined based on FDM within the specified BWP.
In an embodiment, the indication information is configured to configure a frequency domain resource range for using an extended cyclic prefix (eCP) within the specified BWP.
The specific content in the indication information, and the way in which the base station uses the corresponding types of CPs on different resources of the specified BWP to transmit data with the terminal based on the indication information, are similar to the implementation shown in
In an embodiment, the indication information can be used to configure an anchor RB corresponding to the eCP within a specified BWP.
The specific content in the indication information, and the way in which the base station uses the corresponding types of CPs on different resources of the specified BWP to transmit data with the terminal based on the indication information, are similar to the implementation shown in
In an embodiment, the indication information can be used to configure multiple CFRs using different types of CPs.
The way in which the base station uses the corresponding types of CPs on different resources of the specified BWP to transmit data with the terminal based on the indication information, are similar to the implementation shown in
In another embodiment, the indication information can be configured to configure types of CPs corresponding to different frequency domain resource granularities within the specified BWP.
The specific content in the indication information, and the way in which the base station uses the corresponding types of CPs on different resources of the specified BWP to transmit data with the terminal based on the indication information, are similar to the implementation shown in
In some embodiments, the indication information is configured to configure types of CPs corresponding to one or more specific time domain resources within the specified BWP. That is, a type of a CP is determined based on TDM within the specified BWP.
In an embodiment, the size of one or more specific time domain resources is measured in a unit of an OFDM symbol, a time slot, or a predefined time length. The predefined time length can be configured by the base station or agreed upon by the protocol, which is not limited in the present disclosure.
The specific content in the indication information, and the way in which the base station uses the corresponding types of CPs on different resources of the specified BWP to transmit data with the terminal based on the indication information, are similar to the implementation shown in
In an embodiment, the indication information can be configured using SILV.
The specific content in the indication information, and the way in which the base station uses the corresponding types of CPs on different resources of the specified BWP to transmit data with the terminal based on the indication information, are similar to the implementation shown in
In an embodiment, when the size of the one or more specific time domain resources is measured in the unit of the time slot or the predefined time length, the indication information includes at least one of: period information; or CP type indication information corresponding to each of the one or more time domain resources within each period.
The base station can determine the CP indicated by the CP type indication information on each time domain resource based on the indication information, and then transmit data with the base station based on the CP.
In the above embodiments, the base station can configure the types of CPs corresponding to different resources within the specified BWP, where the specified BWP is a BWP that needs to support multiple types of CPs at the same time, which can reduce scheduling restrictions on the network side, reduce data transmission latency, and improve system transmission performance.
In some embodiments, the base station can transmit a radio resource control (RRC) signal including the indication information to the terminal; or transmit system information including the indication information to the terminal, where the system information may be SIB1 or SIBx, which is not limited in the present disclosure. Alternatively, the base station can transmit an MBS-MCCH including the indication information to the terminal.
In some embodiments, the indication information can be configured by the base station based on each specified BWP, or the indication information can be configured by the base station based on each cell.
The indication information is configured based on each cell, that is, in the case where the indication information is a cell specific configuration, the types of CPs corresponding to different resources indicated by the indication information can be applied to all specified BWPs within the cell.
For ease of understanding, further examples of the above data transmission methods are provided below.
In Embodiment 1, assuming that the terminal needs to support both NCP and eCP within the same frequency band at the same time. As an example, the terminal determines the specified BWP for the following reasons:
In the embodiments of the present disclosure, the base station configures multiple types of CPs for the specified BWP of the terminal through indication information. Specifically, the base station can transmit the RRC signal, SIB1, SIBx, or MBS-MCCH including indication information to the terminal. The indication information is at the BWP level or cell level, which is not limited in the present disclosure.
The terminal side receives the indication information transmitted by the network side and determines the corresponding types of CPs used on different frequency domain resources within the specified BWP. Specifically, the indication information transmitted by the base station is configured to configure a frequency domain resource range for using an extended cyclic prefix (eCP) within the specified BWP.
The indication information transmitted by the base station includes the Resource Block (RB) index of the starting Resource Block (RB) using the eCP within the specified BWP; and the number of RBs using eCP within the specified BWP. That is, the frequency domain range corresponding to the eCP is configured by SLIV.
Referring to
In Embodiment 2, it is assumed that the terminal needs to support both NCP and eCP within the same frequency band at the same time. As an example, the terminal determines the specified BWP for the following reasons:
In the embodiments of the present disclosure, the base station configures multiple types of CPs for the specified BWP of the terminal through indication information. Specifically, the base station can transmit the RRC signal, SIB1, SIBx, or MBS-MCCH including indication information to the terminal. The indication information is at the BWP level or cell level, which is not limited in the present disclosure.
The terminal side receives the indication information transmitted by the network side and determines the corresponding types of CPs used on different frequency domain resources within the specified BWP. Specifically, the RB index of the anchor RB corresponding to eCP within the BWP is configured in the indication information transmitted by the base station.
Referring to
Alternatively, as shown in
In Embodiment 3, it is assumed that the terminal needs to support both NCP and eCP within the same frequency band at the same time. As an example, the terminal determines the specified BWP for the following reasons:
In the embodiments of the present disclosure, the base station configures multiple types of CPs for the specified BWP of the terminal through indication information. Specifically, the base station can transmit the RRC signal, SIB1, SIBx, or MBS-MCCH including indication information to the terminal. The indication information is at the BWP level or cell level, which is not limited in the present disclosure.
The terminal side receives indication information transmitted by the network side, where the indication information is configured to configure multiple common frequency resources (CFRs) using different types of CPs. Specifically, the indication information includes but is not limited to at least one of the following: CFR configuring information; or CP type indication information corresponding to the CFRs.
It should be noted that, the CFR is used for transmission in multicast or broadcast related channels, such as for transmitting MBS services. The terminal uses CPs indicated by CP type indication information on different CFRs of the specified BWP, to transmit data with the base station.
Referring to
It should be noted that the present disclosure does not limit the configuration of CFR.
In Embodiment 4, it is assumed that the terminal needs to support both NCP and eCP within the same frequency band at the same time. As an example, the terminal determines the specified BWP for the following reasons:
In the embodiments of the present disclosure, the base station configures multiple types of CPs for the specified BWP of the terminal through indication information. Specifically, the indication information is configured to configure types of CPs corresponding to different frequency domain resource granularities within the specified BWP. The indication information can be bitmap information.
When the bit value of a bit in the bitmap is 0, the CP type corresponding to the frequency domain resource granularity is NCP. When the bit value of a bit in the bitmap is 1, the CP type corresponding to the frequency domain resource granularity is eCP. The frequency domain resource granularity corresponding to each bit in the bitmap is 1 RB or N RBs, where N is a positive integer greater than 1. N RBs can be continuous RBs or discrete RBs. The value of N can be indicated through explicit signaling transmitted by the base station, or determined through pre-definition of a protocol.
Referring to
In Embodiment 5, assuming that the terminal needs to support both NCP and eCP within the same frequency band at the same time. As an example, the terminal determines the specified BWP for the following reasons:
In the embodiments of the present disclosure, the base station configures multiple types of CPs for the specified BWP of the terminal through indication information. Specifically, the indication information is configured to configure a type of CP corresponding to one or more specific time domain resources within the specified BWP.
The indication information is configured to configure the type of CP corresponding to each time domain resource within the specified BWP. The one or more specific time domain resources is measured in a unit of an OFDM symbol, a time slot, or a predefined time length.
Assuming that each specific time domain resource is measured in a unit of an OFDM symbol, the indication information is bitmap information. When the bit value of a bit in the bitmap is 0, the CP type corresponding to the OFDM symbol is NCP. When the bit value of a bit in the bitmap is 1, the CP type corresponding to the OFDM symbol is eCP.
Assuming that the bitmap indicated by the base station is 00011000001100, the corresponding types of CPs used is shown in
Alternatively, the indication information includes at least one of: a time domain resource index of a starting time domain resource using an eCP within the specified BWP; or a number of time domain resources using an eCP within the specified BWP.
Assuming that the time domain resources are in units of OFDM symbols, the symbol index of the starting OFDM symbol is 3 and the number of symbols is 4. Referring to
In Embodiment 6, as described in Embodiment 5, the terminal receives CP type indication information transmitted by the base station and determines the type of CP on one or more specific time domain resources of the specified BWP. Specifically, the indication information may include at least one of: period information; or CP type indication information corresponding to each of the one or more time domain resources within each period. Where the one or more specific time domain resources is measured in a unit of an OFDM symbol, a time slot, or a predefined time length.
The number of time domain resources included in the predefined time length can be indicated by any signaling as described in Embodiment 5.
In the embodiments of the present disclosure, assuming that the indication information is configured to indicate the slot or time length using eCP, and the remaining slots or time lengths not indicated use NCP. Specifically, the base station indicates a period of a time domain pattern for the eCP and specifies the slot or time length using eCP in the period. The method for indicating the time domain resources occupied by eCP within one pattern period are shown in
In the above embodiments, the base station can configure multiple types of CPs for the specified BWP of the terminal, where the specified BWP is a BWP that needs to support multiple types of CPs at the same time. The terminal side can use multiple types of CPs for data transmission on the same BWP, avoiding frequent BWP switching by the terminal, reducing scheduling restrictions on the network side, reducing data transmission latency, and improving system transmission performance.
Corresponding to the above method embodiments implementing application functions, the present disclosure further provides embodiments of apparatuses for implementing application functions.
Referring to
Referring to
Since the device embodiments basically corresponds to the method embodiments, the relevant parts can refer to the partial description of the method embodiments. The apparatus examples described above are merely illustrative, where the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, i.e., may be located in one place or may be distributed to multiple network units. Some or all of the modules can be selected according to the actual needs to achieve the purpose of the technical solutions of the present disclosure. A person skilled in the art can understand and implement without creative work.
Correspondingly, in the present disclosure, a computer-readable storage medium is further provided, which stores a computer program for executing any one of the data transmission methods performed by the terminal side described above.
Correspondingly, in the present disclosure, a computer-readable storage medium is further provided, which stores a computer program for executing any one of the data transmission methods performed by the base station side described above.
Correspondingly, in the present disclosure, a data transmission device is further provided, and includes:
Referring to
The processing component 1802 generally controls the overall operation of the electronic device 1800, such as operations associated with displays, phone calls, data communications, camera operations, and recording operations. The processing component 1802 may include one or more processors 1820 to execute instructions to complete all or a part of the steps of the above data transmission methods. Further, the processing component 1802 may include one or more modules to facilitate interaction between the processing component 1802 and another component. For example, the processing component 1802 may include a multimedia module to facilitate the interaction between the multimedia component 1808 and the processing component 1802. For another example, the processing component 1802 may read executable instructions from the memory to perform steps in the data transmission method provided in embodiments as described above.
The memory 1804 is configured to store different types of data to support operation at the electronic device 1800. Examples of such data include instructions, contact data, phonebook data, messages, pictures, videos, and so on for any application or method that operates on the electronic device 1800. The memory 1804 may be implemented by any type of volatile or non-volatile storage devices or a combination thereof, such as a Static Random Access Memory (SRAM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), an Erasable Programmable Read-Only Memory (EPROM), a Programmable Read-Only Memory (PROM), a Read-Only Memory (ROM), a magnetic memory, a flash memory, a disk or a CD.
The power source assembly 1806 provides power to different assemblies of the electronic device 1800. The power source assembly 1806 may include a power source management system, one or more power sources and other assemblies associated with generating, managing and distributing power for the electronic device 1800.
The multimedia component 1808 includes a display screen that provides an output interface between the electronic device 1800 and a user. In some examples, the multimedia component 1808 may include a front camera and/or a rear camera. When the electronic device 1800 is in an operating mode, such as in a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each of the front camera and the rear camera may be a fixed optical lens system or be of a focal length and a capability of an optical zoom.
The audio component 1810 is configured to output and/or input an audio signaling. For example, the audio assembly 1810 includes a microphone (MIC). When the electronic device 1800 is in an operating mode, for example, in a call mode, a recording mode or a speech recognition mode, the microphone is configured to receive an external audio signal. The received audio signaling may be further stored in the memory 1804 or transmitted via the communication component 1818. In some examples, the audio component 1810 also includes a loudspeaker for outputting an audio signaling.
The I/O interface 1812 may provide an interface between the processing component 1802 and peripheral interface modules. The above peripheral interface modules may include a keyboard, a click wheel, buttons and so on. These buttons may include but not limited to, a home button, a volume button, a start button and a lock button.
The sensor assembly 1816 includes one or more sensors for evaluating states of the electronic device 1800 in different aspects. For example, the sensor component 1816 may detect the on/off status of the electronic device 1800, and relative positioning of component, for example, the component is a display and a keypad of the electronic device 1800. The sensor component 1816 may also detect a change in position of the electronic device 1800 or a component of the electronic device 1800, a presence or absence of the contact between a user and the electronic device 1800, an orientation or an acceleration/deceleration of the electronic device 1800, and a change in temperature of the electronic device 1800. The sensor component 1816 may include a proximity sensor for detecting the existence of a nearby object without any physical touch. The sensor component 1816 may also include an optical sensor, such as a CMOS or CCD image sensor used in an imaging application. In some examples, the sensor component 1816 may also include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication assembly 1818 is configured to facilitate wired or wireless communication between the electronic device 1800 and other devices. The electronic device 1800 may access a wireless network based on a communication standard, such as Wi-Fi, 2G, 3G, 4G, 5G, 6G, or a combination thereof. In some embodiments, the communication component 1818 may receive a broadcast signaling or broadcast-related information from an external broadcast management system via a broadcast channel. In an example, the communication component 1818 may also include a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on a Radio Frequency Identification (RFID) technology, an Infrared Data Association (IrDA) technology, an Ultra Wideband (UWB) technology, a Bluetooth® (BT) technology and other technologies.
In some illustrative embodiments, the electronic device 1800 may be implemented by one or more of an application-specific integrated circuit (ASIC), a digital signal processor (DSP), a digital signal processing device (DSPD), programmable logical device (PLD), field programmable gate array (FPGA), a controller, microcontroller, a microprocessor or other electronic components to execute the above data transmission methods.
In an example embodiment, there is also provided a non-transitory machine-readable storage medium including instructions, such as a memory 1804 including instructions, where the instructions are executable by the processor 1820 of the electronic device 1800 to implement the data transmission method as described above. For example, the non-transitory computer-readable storage medium may be a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disc, an optical data storage device, and the like.
Correspondingly, in the present disclosure, a data transmission device is further provided, and includes:
As shown in
One of the processors in the processing component 1922 may be configured to execute any one of the foregoing data transmission method.
Other implementations of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the present disclosure herein. The present application is intended to cover any variations, uses, or adaptations of the present disclosure, which follow the general principle of the present disclosure and include common knowledge or conventional technical means in the art that are not disclosed in the present disclosure. The specification and embodiments herein are intended to be illustrative only and the real scope and spirit of the present disclosure are indicated by the following claims of the present disclosure.
It is to be understood that the present disclosure is not limited to the precise structures described above and shown in the accompanying drawings and may be modified or changed without departing from the scope of the present disclosure. The scope of protection of the present disclosure is limited only by the appended claims.
The present application is a U.S. national phase application of International Application No. PCT/CN2022/076886, filed on Feb. 18, 2022, the content of which is incorporated herein by reference in its entirety.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2022/076886 | 2/18/2022 | WO |
