Patent Application
20220007364
The present disclosure generally relates to the field of wireless communications, and in particular to an electronic device for wireless communication and a wireless communication method, and a computer readable medium.
A bandwidth part (BWP) is defined in TS 38.211 of 3GPP (that is, third generation partner project). The BWP is a set of continuous resource blocks. Users can only activate one BWP configuration for a given time period, and cannot transmit or receive information on resources other than the activated BWP. As an example, three BWPs are configured in the scenario shown in
Brief summary of embodiments of the present disclosure is given hereinafter, to provide basic understanding for certain aspects of the present disclosure. It should be understood that, the summary is not exhaustive summary of the present disclosure. The summary is not intended to determine key parts or important parts of the present disclosure, and is not intended to limit the scope of the present disclosure. An object of the summary is only to give some concepts of the present disclosure in a simplified form, as preamble of the detailed description later.
An electronic device for wireless communication is provided according to an embodiment. The electronic device includes a processing circuit. The processing circuit is configured to: perform control to receive indication information from a first user equipment, the indication information being related to a sidelink bandwidth part SL-BWP for data transmission. The processing circuit is further configured to: perform, based on the indication information, an operation for performing sidelink communication with the first user equipment.
A wireless communication method is provided according to another embodiment. The wireless communication method includes: receiving indication information from a first user equipment, the indication information being related to a SL-BWP for data transmission. The method further includes performing, based on the indication information, an operation for performing sidelink communication with the first user equipment.
An electronic device for wireless communication is provided according to another embodiment. The electronic device includes a processing circuit. The processing circuit is configured to: perform control to send indication information to a second user equipment, the indication information being related to a sidelink bandwidth part SL-BWP for data transmission. The processing circuit is configured to: perform control to receive feedback information related to the indication information from the second user equipment; and perform, based on the feedback information, an operation for performing sidelink communication with the second user equipment.
A wireless communication method is provided according to another embodiment. The wireless communication method includes: sending, to a second user equipment, indication information. The indication information is related to a SL-BWP for data transmission. The method further includes: receiving feedback information related to the indication information from the second user equipment; and performing, based on the feedback information, an operation for performing sidelink communication with the second user equipment.
An electronic device for wireless communication is provided according to another embodiment. The electronic device includes a processing circuit. The processing circuit is configured to: perform control to receive, from a first user equipment, a request for a SL-BWP for data transmission corresponding to a second user equipment. The processing circuit is further configured to: perform control to send, to the first user equipment, feedback information on whether to allow the first user equipment to use the SL-BWP.
A wireless communication method is provided according to another embodiment. The wireless communication method includes: receiving, from a first user equipment, a request for a SL-BWP for data transmission corresponding to a second user equipment. The method further includes sending, to the first user equipment, feedback information on whether to allow the first user equipment to use the SL-BWP.
A computer readable medium is provided according to an embodiment of the present disclosure. The computer readable medium includes an executable instruction. When executed by an information processing apparatus, the executable instruction causes the information processing apparatus to implement the method according to the above embodiments.
According to the embodiments of the present disclosure, a coordination scheme of carrier configuration between users, so that a transmitter and a receiver using different carrier configurations can perform sidelink communication.
The present disclosure can be understood better with reference to the description given in conjunction with the drawings in the following. The same or similar element is indicated by the same or similar reference numeral throughput all the drawings. The drawings are included in the description together with the following detailed illustration and form a part of the description, and are used to further illustrate preferred embodiments of the present disclosure and explain principles and advantages of the present disclosure by examples. In the drawings:
Hereinafter, embodiments of the present disclosure are described with reference to the drawings. Elements and features described in one drawing or one embodiment of the present disclosure may be combined with elements and features described in one or more other drawings or embodiments. It should be noted that, indication and description for components and processing which are not related to the present disclosure or well known for those skilled in the art are omitted in the drawings and illustrations for the sake of clarity.
Hereinafter, reference is made to
The electronic device according to the embodiment may be implemented, for example, at a user equipment side. User equipment may include, for example, a vehicle. The present disclosure is not limited thereto, but may be used in various application scenarios of a new radio (NR) sidelink, such as a machine type communication (MTC), device-to-device (D2D) communication, vehicle-to-device (V2X) communication, internet of things (TOT) communication, and the like. The V2X communication may include vehicle-to-vehicle (V2V) communication, vehicle-to-pedestrian (V2P) communication, vehicle-to-infrastructure (V2I) communication, and the like.
The processing circuit 110 includes a control unit 111 and an operating unit 113. It should be noted that, although the control unit 111 and the operating unit 113 are shown as functional blocks in
The control unit 111 is configured to perform control to receive indication information from a first user equipment, the indication information is related to a SL-BWP for data transmission.
The SL-BWP is a continuous physical resource set on a sidelink carrier. The physical resources in the SL-BWP may be configured according to a given SL-BWP configuration parameter. The SL-BWP is configured within the sidelink carrier, and a maximum bandwidth of the SL-BWP is less than a bandwidth of the carrier. In addition, a plurality of resource pools may be configured/pre-configured in the SL-BWP.
In a case that only one SL-BWP is configured within each sidelink carrier, users use a SL-BWP configuration configured within the carrier. UE can only transmit/receive information in the SL-BWP, but cannot transmit/receive information outside the SL-BWP, as shown in
According to an embodiment, two or more SL-BWPs are configured within each sidelink carrier, and one of the two or more SL-BWPs is activated.
In a case that more than one SL-BWPs are configured within each sidelink carrier and one of SL-BWP configurations is activated, UE can only transmit/receive information in the activated SL-BWP, but cannot transmit/receive information outside the activated SL-BWP, as shown in
The system can configure n SL-BWP configurations for user equipment within the sidelink carrier, where 1<n≤N. N represents a maximum number of SL-BWPs that can be configured by the system within the sidelink carrier, and may be configured by the system. Each SL-BWP configuration may be uniquely indicated by the SL-BWP indexes. As shown in
According to an embodiment, indication information related to a SL-BWP for data transmission may include configuration information of the SL-BWP. The configuration information may include, for example, a subcarrier spacing, a cyclic prefix (CP), a physical resource block offset (for example, an offset relative to a starting physical resource block (PRB) within the carrier), and a bandwidth of the SL-BWP (for example, the number of continuous PRB). In addition, in a case that a plurality of SL-BWPs are allowed to be configured within the sidelink carrier, the configuration information may further include the SL-BWP indexes. Alternatively, the configuration information may further include effective time of the SL-BWP (for example, a timer).
The configuration information may be configured by system information, the radio resource control signaling, geographic location-based selection, or may be pre-configured.
In addition, the configuration information may be UE-specific, Cell-specific, Zone-specific or Carrier-specific.
In a case that the configuration information is UE-specific, the system may configure a SL-BWP for user equipment in a RRC_CONNECTED state, and a configuration parameter of the SL-BWP may be configured according to user requirements.
In a case that the configuration information is Cell-specific, the system may configure a SL-BWP for user equipment in the RRC_CONNECTED state, and a configuration parameter of the SL-BWP may be configured according to a base station connected to the user equipment. That is, user equipment covered by a same base station has a same SL-BWP configuration within a same sidelink carrier.
In a case that the configuration information is Zone-specific, the system may acquire zone information according to geographic location of the user, and configure a SL-BWP according to the acquired zone information. That is, users in a same zone have a same SL-BWP configuration mode within a same sidelink carrier.
In a case that the configuration information is Carrier-specific, the system may configure a SL-BWP according to the sidelink carrier used by the user equipment to transmit/receive. That is, users have a same SL-BWP configuration mode within a same sidelink carrier.
In addition, the indication information from the first user equipment may be received by a SL-BWP within a carrier (hereinafter referred to as a common carrier or a first carrier) shared by a plurality of user equipment. The SL-BWP within the common carrier is a common resource for a plurality of user equipment. If the user equipment supports multi-carrier communication, the common carrier may always be in a communicable state. That is, there is no an activated/de-activated indication within the carrier. The SL-BWP within the carrier may be used at any time, and is not necessary to be configured in a case that the SL-BWP is used.
The SL-BWP within the common carrier may be configured by the system information, the RRC signaling, geographic location-based, or may be pre-configured. SL-BWP configurations within the common carrier are the same for all user equipment. The SL-BWP within the common carrier may be used for broadcast, unicast and multicast communication. As shown in
A carrier other than the common carrier may be referred to as the non-common carrier (or a second carrier). The non-common carrier may be configured according to requirements of transmission/reception information of the user equipment. A SL-BWP configuration within the non-common carrier may be the UE-specific, the Cell-specific, the Zone-specific or the Carrier-specific. The SL-BWP configuration within the non-common carrier may be configured by the system information, the RRC signaling, geographic location-based, or may be pre-configured. The SL-BWP within the non-common carrier may be used for broadcast, unicast or multicast communication.
Referring to
According to an embodiment, the operation for performing sidelink communication may include determining, based on the first indication information and a SL-BWP configuration of a current user equipment, whether the current user equipment is capable of performing sidelink communication using a SL-BWP of the first user equipment.
Upon determination of being capable of performing sidelink communication using the SL-BWP of the first user equipment, the operating unit 113 may control the current user equipment to perform sidelink communication with the first user equipment using the SL-BWP of the first user equipment.
In addition, upon determination of not being capable of performing sidelink communication using the SL-BWP of the first user equipment, the operating unit 113 may perform control to send information (hereinafter referred to as a second indication information) related to the SL-BWP of the current user equipment to the first user equipment, or perform control to request, to a serving base station of the current user equipment, a SL-BWP corresponding to the SL-BWP of the first user equipment.
The indication information from the first user equipment and the information related to the SL-BWP of the current user equipment may be transmitted by the SL-BWP within the common carrier (the first carrier). In addition, upon determination of not being capable of performing sidelink communication using the SL-BWP of the first user equipment, the SL-BWP within the common carrier may be used for performing sidelink communication with the first user equipment.
Next, an example process of transmitting the first indication information between user equipment is described with reference to
As show in
The transmitting UE may configure the first indication information A according to the SL-BWP information configured by an upper layer for to-be-transmitted information. An information domain of the first indication information A may include a configuration parameter of a SL-BWP within the second carrier, for example, a subcarrier spacing, a CP, a frequency location, a bandwidth, sidelink carrier information, a source UE identity (ID), an objective UE ID (that may be empty) and a transmission request.
For a SL-BWP configuration of the transmitting UE, for UE in a Mode-1 (that is, an auxiliary mode with a base station), the base station may configure a SL-BWP within the sidelink carrier for the UE according to requirements of the transmission service of the UE. For UE in a Mode-2 (that is, an auxiliary mode without a base station), for example, the UE may independently select a SL-BWP according to requirements of the transmission service and resources. For the case that only one SL-BWP is configured within the carrier, the UE independently selects a transmission carrier and then uses the SL-BWP within the carrier. For the case that a plurality of SL-BWPs are configured within one carrier, the UE may independently select a transmission carrier and a SL-BWP within the carrier.
The first indication information B is SL-BWP information and sidelink control information (SCI) configured by the transmitting UE for the to-be-transmitted information according to the upper layer. An information domain of the first indication information B may include the configuration parameter of the SL-BWP within the second carrier, for example, the subcarrier spacing, the CP, the frequency location, the bandwidth, the sidelink carrier frequency, a source UE identity (ID), an objective UE ID (that may be empty), a transmission request and SCI information (including, for example, a transmission service priority, a resource reservation, a frequency domain resource location of initial transmission and retransmission, a time interval of initial transmission and retransmission, a mode of modulation and coding, retransmission indexes).
For the SL-BWP configuration of the transmitting UE, for the UE in the Mode-1, the base station may configure a SL-BWP within the sidelink carrier and transmission resources in the SL-BWP for the UE according to requirements of the transmission service of the UE. For the UE in the Mode-2 as described above, the UE may independently select the SL-BWP and transmission resources in the SL-BWP according to requirements of the transmission service and resources.
Next, an example process of transmitting the second indication information between user equipment is described with reference to
As shown in
The second indication information is sent from the receiving UE to the transmitting UE to indicate a specified SL-BWP configuration in which the receiving UE can receive information. An information domain of the second indication information may include a configuration parameter of the SL-BWP, for example, a subcarrier spacing, a CP, a frequency location, a bandwidth, a sidelink carrier frequency, a source UE ID, an objective UE ID.
As described above, a single carrier may have one SL-BWP configuration or a plurality of SL-BWP configurations. Next, exemplary embodiments are described for one SL-BWP configured within the carrier and a plurality of SL-BWPs configured within the carrier, respectively.
The exemplary embodiments are described hereinafter in the following order.
A. One SL-BWP is configured within the carrier.
1. UE-specific
2. Cell-specific
3. Zone-specific
4. Carrier-specific
B. A plurality of SL-BWPs are configured within the carrier
1. UE-specific
2. Cell-specific
3. Zone-specific
4. Carrier-specific
Next, an exemplary embodiment in the case of one SL-BWP is configured within the carrier is described first.
A. One SL-BWP is Configured within the Carrier.
In this case, the transmitting UE performs data transmission on the SL-BWP within the second carrier. For the UE in the Mode-1, before receiving the first indication information, the SL-BWP is configured within the no carriers, and the system only configures one SL-BWP within each carrier, where 0<n0≤N0. N0 represents a maximum number of a configurable carrier. For the UE in the Mode-2, only one SL-BWP is allowed to be configured/pre-configured within each carrier. The SL-BWP may be pre-configured by the base station, may be configured based on geographic location, or may be pre-configured.
1. UE-Specific
In the case that the configuration information is UE-specific, the first indication information indicates the configuration parameter of the SL-BWP, including at least the sidelink carrier frequency, the subcarrier spacing, the CP, the frequency location and the bandwidth. A SL-BWP configuration request indicates the configuration parameter of the SL-BWP, including at least the sidelink carrier frequency, the subcarrier spacing, the CP, the frequency location and the bandwidth. The second indication information includes at least the sidelink carrier frequency, the subcarrier spacing, the CP, the frequency location and the bandwidth.
In the case of the UE-specific,
Further,
As shown in
As shown in
As shown in
Next, a process example of a transmitting UE side in the case of meeting the transmission requirements is described with reference to
In a case that the transmitting UE uses the first indication information A with reference to
Alternately, in a case that the transmitting UE uses the first indication information B with reference to
Next, process examples of the transmitting UE side in a case of not meeting the transmission requirements are described with reference to
In a case that the transmitting UE uses the first indication information A with reference to
In addition,
In a case that the transmitting UE uses the first indication information B with reference to
In addition,
Next, process examples without the base station are described with reference to
In the case that the transmitting UE uses the first indication information A with reference to
In the case that the transmitting UE uses the first indication information B with reference to
If the transmission resources are configured unsuccessfully, in the case that the transmitting UE uses the first indication information A with reference to
2. Cell-Specific
Cell-specific refers to a same SL-BWP configuration within a same carrier in a same cell. In the case that the SL-BWP configuration is cell specific, information domains of a first instruction information, a second instruction information, a SL-BWP configuration request and a SL-BWP activation request may be, for example:
the first indication information indicating the configuration parameter of the SL-BWP, including at least a sidelink carrier frequency, a subcarrier spacing, a CP, a frequency location, a bandwidth and a cell identity (for example, last three digits);
the second indication information indicating the configuration parameter of the SL-BWP, including at least a sidelink carrier frequency, a subcarrier spacing, a CP, a frequency location, a bandwidth and a cell identity (for example, last three digits); and
the SL-BWP configuration request including at least the sidelink carrier frequency, the subcarrier spacing, the CP, the frequency location and the bandwidth.
For the cell identity, it should be noted that the cell identity for the UE in the Mode-2 may be a default value or empty, to determine whether a base station connected with the receiving is the same as a base station connected with the transmitting UE. In other words, according to the cell identity, it may be determined whether the transmitting UE and receiving UE belong to different cells or a same cell. In a case of the transmitting UE and the receiving UE belonging to the same cell without the base station, the configuration mode is the same as the configuration mode without the base station in the above UE-specific case. For the case that the transmitting UE and the receiving UE belong to different cells, the configuration mode is the same as the configuration mode with the base station in the above UE-specific case.
For the case that the transmitting UE and the receiving UE belong to a same cell, the SL-BWP configuration request may only include the sidelink carrier information, other parameters are optional.
A process of SL-BWP coordination between UE in different cells is the same as a process of SL-BWP coordination in the case of the UE-specific. A process example of the SL-BWP coordination between UE in the same cell is described below.
According to the sidelink carrier information in the first indication information, the receiving UE may determine the following two cases: the receiving UE configuring a related sidelink carrier; and the receiving UE not configuring the related sidelink carrier.
The process without the base station is the same as the process of the UE-specific.
3. Zone-Specific
The process in the case of the zone-specific is similar to that in the case of the cell-specific, with a difference that the cell identity information is changed to zone ID information. For UE communication in a same zone, a configuration mode may be the same as that in the case of cell-specific. For UE communication in different zones, the configuration mode may be the same as the above UE-specific configuration mode.
4. Carrier-Specific
Cell-specific refers to a same SL-BWP configuration on all the UE within a same carrier. In this case, as long as carrier pairing is successful, the transmitting UE and the receiving UE can communicate. The first indication information includes at least the sidelink carrier information, and may not include the SL-BWP configuration information. The SL-BWP configuration request only includes the sidelink carrier information. The second indication information includes at least the sidelink carrier information, and may not include the SL-BWP configuration information.
The receiving UE receives the first indication information. According to the sidelink carrier information in the first indication information, there are the following two cases: the receiving UE configuring a related sidelink carrier; and the receiving UE not configuring the related sidelink carrier.
B. A Plurality of SL-BWPs are Configured within the Carrier.
Next, an exemplary embodiment in the case of a plurality of SL-BWP configurations within the carrier is described. In this case, the transmitting UE performs data transmission on the SL-BWP within the second carrier. For the UE in the Mode-1, before receiving the first indication information, the SL-BWPs are configured within the n0 (0<n0≤N0) carriers, and the system is allowed to configure a plurality of SL-BWPs within each carrier. For the UE in the Mode-2, a plurality of SL-BWPs are allowed to be configured/pre-configured within each carrier. The SL-BWP may be pre-configured by the base station, may be configured based on geographic location, or may be pre-configured. In this case, the first indication information, the second indication information, the SL-BWP configuration parameter in the SL-BWP configuration request may include SL-BWP indexes.
1. UE-Specific
For the case of the UE-specific, the process is the same as that of UE-specific, and detailed description is omitted herein.
2. Cell-Specific
The Cell-specific refers to a same SL-BWP configuration within a same carrier in a same cell. Both the receiving UE and the transmitting UE are in the Mode-1. The first instruction information and the second instruction information further include the Cell identity other than the information described above. The SL-BWP activation request includes at least the sidelink carrier frequency and the SL-BWP indexes. Feedback information of the base station may include two types of activation information and deactivation information.
A process of SL-BWP coordination between UE in different cells is the same as the process of SL-BWP coordination in the case of the UE-specific. The repeated description is omitted herein.
For a process of SL-BWP coordination between UE in the same cell, the receiving UE may determine the following two cases by the sidelink carrier information in the first indication information. The receiving UE configures the related sidelink carrier, and the SL-BWP indicated in the first indication information is activated within the related carrier. The receiving UE does not configure the related sidelink carrier, or the SL-BWP indicated in the first indication information is not activated within the related carrier.
In a case that the transmitting UE uses the first indication information B with reference to
The process without the base station is similar to that of the UE-specific, and the repeated description is omitted herein.
3. Zone-Specific
The process in the case of the zone-specific is similar to that in the case of the cell-specific, with a difference that the cell identity information is changed to zone identity information. Another difference is that the transmitting UE or the receiving UE is in the Mode-2 with the base station.
4. Carrier-Specific
For the Carrier-specific, the UE in the MODE-1 has the same plurality of SL-BWP configurations within the same carrier, and the UE in the MODE-2 has the same and only one SL-BWP configuration within the same carrier.
The Carrier-specific with the base station has the same process of the SL-BWP coordination as that in the same cell of cell-specific, with a difference is that there is no cell identity information in the first indication information/the second indication information. In addition, the case that the receiving UE is in the Mode-2 mode is added into the case “that is, the related sidelink carrier not configured” of the process in the receiving UE. In this case, the receiving UE sends, to the transmitting UE, the second indication information. The case that the transmitting UE is in the Mode-2 mode is added into the case “that is, the related sidelink carrier not configured” of the process in the transmitting UE. In this case, if the sending service on the SL-BWP within the first carrier meets the transmission requirements, the transmission is adjusted into the SL-BWP within the first carrier; and if the sending service on the SL-BWP within the first carrier does not meet the transmission requirements, the transmission end information is fed back.
As described above, the embodiments of the present disclosure may further be applied to multicast communication. Next, upon not repeating the details described above, an example process of multicast communication with reference to
As shown in
In addition, the embodiments of the present disclosure may further be applied to the case of multi-carrier SL-BWP configuration. In this case, UE supports multi-carrier communication, each UE may configure n0 (0<n0≤N0) carriers. N0 represents a maximum number of a configurable carrier. Each carrier has a SL-BWP being capable of transmitting/receiving, and each UE has a first carrier configuration being capable of transmitting/receiving information on the sl-bwp within the first carrier.
Assuming the maximum number L of the carriers supported by the UE, the number may be configured by the system information, the RRC signaling, the location-based selection, pre-configuration and the like.
In addition, considering power limitation of the UE, it is assumed that the maximum number of the carriers supported by UE is set to M.
The maximum number of the carriers NO configurable by the UE is determined in the following manner.
If L≥m, then N0=M; and
If L<m, then N0=L.
It should be noted that above exemplary process is only illustrative and is not limiting.
In the above description for the device according to the embodiment of the present disclosure, some processes and methods are disclosed. Next, a wireless communication method according to an embodiment of the present disclosure is described without repeating the details described above.
As shown in
The wireless communication method according to the embodiment of the present disclosure may be implemented on a receiving UE side
In addition, the embodiment of the present disclosure further includes the device and method implemented on the above “transmitting UE” side. Next, the embodiment on the “transmitting UE” side is described without repeating the details described above.
As shown in
The sending unit 311 is configured to perform control to send indication information to a second user equipment, the indication information being related to a sidelink bandwidth part SL-BWP for data transmission.
The receiving unit 313 is configured to perform control to receive feedback information related to the indication information from the second user equipment.
The operating unit 315 is configured to perform, based on the feedback information, an operation for performing sidelink communication with the second user equipment.
According to an embodiment, the operating unit 315 is configured to control a current user equipment to perform sidelink communication with the second user equipment using the SL-BWP, upon the feedback information indicating that the second user equipment is capable of performing sidelink communication using the SL-BWP.
According to an embodiment, the feedback information includes information related to a SL-BWP of the second user equipment, and the operating unit 315 is configured to determine, based on the feedback information and a SL-BWP configuration of a current user equipment, whether the current user equipment is capable of performing sidelink communication using a SL-BWP of the second user equipment.
The operating unit 315 is further configured to control the current user equipment to perform sidelink communication with the second user equipment using the SL-BWP of the second user equipment, upon determination of being capable of performing sidelink communication using the SL-BWP of the second user equipment.
The operating unit 315 is further configured to perform control to request, to a serving base station of the current user equipment, a SL-BWP corresponding to the SL-BWP of the second user equipment, upon determination of not being capable of performing sidelink communication using the SL-BWP of the second user equipment.
According to an embodiment, the indication information of the current user equipment is sent by a SL-BWP within a first carrier to the second user equipment, and the feedback information is received by the SL-BWP within the first carrier from the second user equipment.
The operating unit 315 is further configured to control the current user equipment to perform sidelink communication with the second user equipment using the SL-BWP within the first carrier, upon determination of not being capable of performing sidelink communication using the SL-BWP of the second user equipment.
In addition, the embodiment of the present disclosure further includes the device and the method that are implemented on the base station side. Next, the embodiment on the base station side is described without repeating the details described above.
As shown in
The receiving unit 511 is configured to perform control to receive, from a first user equipment, a request for a sidelink bandwidth part SL-BWP for data transmission corresponding to a second user equipment.
The sending unit 513 is configured to perform control to send, to the first user equipment, feedback information on whether to allow the first user equipment to use the SL-BWP.
As shown in
In addition, a computer readable medium is further provided according to an embodiment of the present disclosure. The computer readable medium includes executable instructions, when executed by an information processing apparatus, cause the information processing apparatus to implement the above method.
As an example, steps of the above-described method and composing modules and/or units of the above-described device may be implemented as software, firmware, hardware, or a combination thereof. In a case of implementing by software or firmware, a program constituting the software for implementing the above-described method may be installed from a storage medium or a network to a computer (for example, a general-purpose computer 700 shown in
In
The following components are linked to the input/output interface 705: an input portion 706 (including a keyboard, a mouse or the like), an output portion 707 (including a display such as a cathode ray tube (CRT), a liquid crystal display (LCD), a speaker or the like), a storage portion 708 (including a hard disk or the like), and a communication portion 709 (including a network interface card such as a LAN card, a modem or the like). The communication portion 709 performs communication processing via a network such as the Internet. A driver 710 may also be linked to the input/output interface 705 as needed. A removable medium 711 such as a magnetic disk, an optical disk, a magneto-optical disk and a semiconductor memory may be installed on the driver 710 as needed, such that the computer programs read from the removable medium 711 are installed in the storage portion 708 as needed.
In a case that the series of processing described above is implemented by software, programs constituting the software are installed from a network such as the Internet or a storage medium such as the removable medium 711.
Those skilled in the art should understand that the storage medium is not limited to the removable medium 711 shown in
According to an embodiment of the present disclosure, a program product storing machine-readable instruction codes is further provided. When read and executed by a machine, the instruction codes cause the machine to perform the above-described method according to the embodiment of the present disclosure.
Accordingly, a storage medium for carrying the above-described program product storing the machine-readable instruction codes is also included in the present disclosure. The storage medium includes, but not limited to, a floppy disk, an optical disk, a magneto-optical disk, a storage card, a memory stick or the like.
The embodiments of the present disclosure further relate to an electronic device in the following. In a case that the electronic device is for base station side, the electronic device may be implemented as any type of evolution Node B (eNB), such as a macro eNB and a small eNB. The small eNB may be an eNB covering a cell smaller than a macro cell, such as a pico eNB, a micro eNB or a home (femto) eNB. Alternatively, the base station may be implemented as any other type of base station, such as a NodeB and a base transceiver station (BTS). The electronic device may include: a main body (also referred to as a base station apparatus) configured to control wireless communication; and one or more remote radio heads (RRH) arranged at positions different from the main body. In addition, various types of terminals described below may operate as a base station by performing functions of the base station temporarily or in a semi-persistent manner.
In a case that the electronic device is for user equipment side, the electronic device may be implemented as mobile terminals (such as a smart phone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a portable/dongle mobile router and a digital camera) or a vehicle terminal (such as a car navigation apparatus). In addition, the electronic device may be a wireless communication module (such as an integrated circuit module including one or more chips) installed on each of the above terminals.
[Application Example on Terminal Apparatus]
The processor 2501 may be, for example, a CPU or a system on a chip (SoC), and controls functions of an application layer and another layer of the smart phone 2500. The memory 2502 includes RAM and ROM, and stores a program executed by the processor 2501 and data. The storage 2503 may include a storage medium such as a semiconductor memory and a hard disk. The external connection interface 2504 is an interface for connecting an external apparatus (such as a memory card and a universal serial bus (USB) apparatus) to the smart phone 2500.
The camera 2506 includes an image sensor (such as a charge coupled device (CCD) and a complementary metal oxide semiconductor (CMOS)), and generates a captured image. The sensor 2507 may include a group of sensors such as a measurement sensor, a gyro sensor, a geomagnetic sensor, and an acceleration sensor. The microphone 2508 converts sounds that are inputted to the smart phone 2500 to audio signals. The input device 2509 includes, for example, a touch sensor configured to detect touch onto a screen of the display device 2510, a keypad, a keyboard, a button, or a switch, and receive an operation or information inputted from a user. The display device 2510 includes a screen (such as a liquid crystal display (LCD) and an organic light-emitting diode (OLED) display), and displays an output image of the smart phone 2500. The speaker 2511 converts audio signals that are outputted from the smart phone 2500 to sounds.
The wireless communication interface 2512 supports any cellular communication scheme (such as LTE and LTE-Advanced), and performs wireless communication. The wireless communication interface 2512 may typically include, for example, a base band (BB) processor 2513 and a radio frequency (RF) circuit 2514. The BB processor 2513 may perform, for example, encoding/decoding, modulating/demodulating, and multiplexing/demultiplexing, and performs various types of signal processing for wireless communication. Meanwhile, the RF circuit 2514 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives wireless signals via the antenna 2516. The wireless communication interface 2512 may be a chip module having the BB processor 2513 and the RF circuit 2514 integrated thereon. As shown in
Furthermore, in addition to a cellular communication scheme, the wireless communication interface 2512 may support another type of wireless communication scheme such as a short-distance wireless communication scheme, a near field communication scheme, and a wireless local area network (LAN) scheme. In this case, the wireless communication interface 2512 may include the BB processor 2513 and the RF circuit 2514 for each wireless communication scheme.
Each of the antenna switches 2515 switches connection destinations of the antennas 2516 among a plurality of circuits (such as circuits for different wireless communication schemes) included in the wireless communication interface 2512.
Each of the antennas 2516 includes a single or a plurality of antenna elements (such as a plurality of antenna elements included in an MIMO antenna), and is used for the wireless communication interface 2512 to transmit and receive wireless signals. As shown in
Furthermore, the smart phone 2500 may include the antenna 2516 for each wireless communication scheme. In this case, the antenna switches 2515 may be omitted from the configuration of the smart phone 2500.
The bus 2517 connects the processor 2501, the memory 2502, the storage 2503, the external connection interface 2504, the camera 2506, the sensor 2507, the microphone 2508, the input device 2509, the display device 2510, the speaker 2511, the wireless communication interface 2512, and the auxiliary controller 2519 to each other. The battery 2518 supplies power to blocks of the smart phone 2500 shown in
In the smart phone 2500 shown in
[Application Example on Base Station]
Each of the antennas 2310 includes a single or plurality of antenna elements (such as plurality of antenna elements included in a multi-input multi-output (MIMO) antenna), and is used for the base station apparatus 2320 to transmit and receive wireless signals. As shown in
The base station apparatus 2320 includes a controller 2321, a memory 2322, a network interface 2323, and a wireless communication interface 2325.
The controller 2321 may be, for example, a CPU or a DSP, and operates various functions of a higher layer of the base station apparatus 2320. For example, the controller 2321 generates a data packet from data in signals processed by the wireless communication interface 2325, and transfers the generated packet via the network interface 2323. The controller 2321 may bundle data from a plurality of base band processors to generate the bundled packet, and transfer the generated bundled packet. The controller 2321 may have logical functions of performing control such as radio resource control, radio bearer control, mobility management, admission control and scheduling. The control may be performed in corporation with an gNB or a core network node in the vicinity. The memory 2322 includes a RAM and a ROM, and stores a program executed by the controller 2321, and various types of control data (such as a terminal list, transmission power data, and scheduling data).
The network interface 2323 is a communication interface for connecting the base station apparatus 2320 to a core network 2324. The controller 2321 may communicate with a core network node or another gNB via the network interface 2323. In this case, the gNB 2300, and the core network node or the other gNB may be connected to each other via a logical interface (such as an S1 interface and an X2 interface). The network interface 2323 may also be a wired communication interface or a wireless communication interface for wireless backhaul. If the network interface 2323 is a wireless communication interface, the network interface 2323 may use a higher frequency band for wireless communication than a frequency band used by the wireless communication interface 2325.
The wireless communication interface 2325 supports any cellular communication scheme (such as Long Term Evolution (LTE) and LTE-Advanced), and provides wireless connection to a terminal positioned in a cell of the gNB 2300 via the antenna 2310. The wireless communication interface 2325 may typically include, for example, a BB processor 2326 and an RF circuit 2327. The BB processor 2326 may perform, for example, encoding/decoding, modulating/demodulating, and multiplexing/demultiplexing, and performs various types of signal processing of layers (such as L1, medium access control (MAC), wireless link control (RLC), and a packet data convergence protocol (PDCP)). The BB processor 2326 may have a part or all of the above-described logical functions instead of the controller 2321. The BB processor 2326 may be a memory that stores a communication control program, or a module that includes a processor and a related circuit configured to execute the program. Updating the program may allow the functions of the BB processor 2326 to be changed. The module may be a card or a blade that is inserted into a slot of the base station apparatus 2320. Alternatively, the module may also be a chip that is mounted on the card or the blade. Meanwhile, the RF circuit 2327 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives wireless signals via the antenna 2310.
As shown in
In the gNB 2300 shown in
[Application Example on Car Navigation Device]
The processor 2121 may be for example the CPU or the SoC, and control the functions of the application layer and another layer of the car navigation device 2120. The memory 2122 includes RAM and ROM, and stores a program that is executed by the processor 2121, and data.
The GPS module 2124 determines a position (such as latitude, longitude, and altitude) of the car navigation device 1420 by using GPS signals received from a GPS satellite. The sensor 2125 may include a set of sensors, such as a gyro sensor, a geomagnetic sensor, and an air pressure sensor. The data interface 2126 is connected to, for example, an in-vehicle network 2141 via a terminal that is not shown, and acquires data generated by the vehicle, such as vehicle speed data.
The content player 2127 reproduces content stored in a storage medium (such as a CD and a DVD) that is inserted into the storage medium interface 2128. The input device 2129 includes, for example, a touch sensor configured to detect touch onto a screen of the display device 2130, a button or a switch, and receives an operation or information inputted from a user. The display device 2130 includes a screen such as an LCD or an OLED display, and displays an image of the navigation function or content that is reproduced. The speaker 2131 outputs sound of the navigation function or the content that is reproduced.
The wireless communication interface 2133 supports any cellular communication scheme (such as LTE and LTE-Advanced), and performs wireless communication. The wireless communication interface 2133 may typically include, for example, a BB processor 2134 and an RF circuit 2135. The BB processor 2134 may perform, for example, encoding/decoding, modulating/demodulating, and multiplexing/demultiplexing, and performs various types of signal processing for wireless communication. Meanwhile, the RF circuit 2135 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives wireless signals via the antenna 2137. The wireless communication interface 2133 may also be a chip module having the BB processor 2134 and the RF circuit 2135 integrated thereon. As shown in
Furthermore, in addition to the cellular communication scheme, the wireless communication interface 2133 may support another type of wireless communication scheme such as a short-distance wireless communication scheme, a near field communication scheme, and a wireless LAN scheme. In this case, the wireless communication interface 2133 may include the BB processor 2134 and the RF circuit 2135 for each wireless communication scheme.
Each of the antenna switches 2136 switches connection destinations of the antennas 2137 among a plurality of circuits (such as circuits for different wireless communication schemes) included in the wireless communication interface 2133.
Each of the antennas 2137 includes a single or a plurality of antenna elements (such as a plurality of antenna elements included in an MIMO antenna), and is used for the wireless communication interface 2133 to transmit and receive wireless signals. As shown in
Furthermore, the car navigation apparatus 2120 may include the antenna 2137 for each wireless communication scheme. In this case, the antenna switches 2136 may be omitted from the configuration of the car navigation apparatus 2120.
The battery 2138 supplies power to blocks of the car navigation apparatus 2120 shown in
In the car navigation apparatus 2120 shown in
The technology of the present disclosure may also be implemented as an in-vehicle system (or a vehicle) 2140 including one or more blocks of the car navigation apparatus 2120, the in-vehicle network 2141 and a vehicle module 2142. The vehicle module 2142 generates vehicle data (such as a vehicle speed, an engine speed or failure information), and outputs the generated data to the in-vehicle network 2141.
In the above description of specific embodiments of the present disclosure, the features described and/or illustrated with respect to one embodiment may be used in one or more other embodiments in the same or similar manner, may be combined with features in other embodiments, or may replace features in other embodiments.
It should be noted that the term “comprising/including” as used herein refers to the presence of a feature, element, step, or component, but does not exclude the presence or addition of one or more other features, elements, steps or components.
In the above embodiments and examples, reference numerals consist of numerals are used to represent steps and/or units. It should be understood by those skill in the art that the reference numerals are used only for facilitating description and illustration and are not intended to represent an order or limit in any other manner.
In addition, the method of the present disclosure is not limited to be performed in a chronological order described in the specification, but may also be performed in other chronological order, in parallel or independently. Therefore, the order for executing the method described in this specification does not limit the technical scope of the present disclosure.
Although the present disclosure has been described by specific embodiments according to the present disclosure, it should be understood that all of the embodiments and examples described above are illustrative and not restrictive. Various modifications, improvements or equivalents of the present disclosure may be designed by those skilled in the art from the spirit and the scope of the appended claims. Such modifications, improvements or equivalents shall be construed as being included within the scope of protection of the present disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201811524640.7 | Dec 2018 | CN | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2019/123596 | 12/6/2019 | WO | 00 |
