WO2021012928A1 - 载波聚合参数配置方法、设备及系统 - Google Patents

载波聚合参数配置方法、设备及系统 Download PDF

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Publication number
WO2021012928A1
WO2021012928A1 PCT/CN2020/100002 CN2020100002W WO2021012928A1 WO 2021012928 A1 WO2021012928 A1 WO 2021012928A1 CN 2020100002 W CN2020100002 W CN 2020100002W WO 2021012928 A1 WO2021012928 A1 WO 2021012928A1
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Prior art keywords
target
carrier
information
service
control signaling
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PCT/CN2020/100002
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English (en)
French (fr)
Inventor
鲍炜
郑倩
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维沃移动通信有限公司
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Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to EP20843936.4A priority Critical patent/EP4007198A4/en
Priority to KR1020227000331A priority patent/KR20220016980A/ko
Publication of WO2021012928A1 publication Critical patent/WO2021012928A1/zh
Priority to US17/576,600 priority patent/US20220141824A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0092Indication of how the channel is divided
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0096Indication of changes in allocation
    • H04L5/0098Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • H04W4/40Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/46Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/14Direct-mode setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/18Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the embodiments of the present disclosure relate to the field of communication technologies, and in particular, to a method, device and system for configuring carrier aggregation (CA) parameters.
  • CA carrier aggregation
  • the sidelink technology refers to a technology that can directly transmit data between user equipment (UE) without going through network equipment.
  • LTE long-term evolution
  • NR new radio
  • a single carrier may not be able to meet the transmission rate requirements of the service, resulting in a lower sidelink transmission rate in some scenarios .
  • the embodiments of the present disclosure provide a CA parameter configuration method, device, and system to solve the problem of low sidelink transmission rate in certain scenarios.
  • embodiments of the present disclosure provide a CA parameter configuration method.
  • This method can be applied to the first device.
  • the method may include: sending first information to the second device, the first information being used to indicate a target CA parameter configured for a sidelink service, the sidelink service being a sidelink service between the first device and the second device.
  • the embodiments of the present disclosure provide a CA parameter configuration method.
  • This method can be applied to the second device.
  • the method may include: receiving first information sent by a first device, where the first information is used to indicate a target CA parameter configured for a sidelink service, and the sidelink service is a sidelink service between the first device and the second device.
  • an embodiment of the present disclosure provides a device.
  • the device may include a sending module.
  • the sending module may be used to send first information to the second device, where the first information is used to indicate the target CA parameter configured for the sidelink service, and the sidelink service is the sidelink service between the first device and the second device.
  • an embodiment of the present disclosure provides a device.
  • the device may include a receiving module.
  • the receiving module may be used to receive first information sent by the first device, where the first information is used to indicate a target CA parameter configured for a sidelink service, and the sidelink service is a sidelink service between the first device and the second device.
  • the embodiments of the present disclosure provide a device that includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor.
  • the computer program is executed by the processor, the first The steps of the CA parameter configuration method provided by the aspect.
  • the embodiments of the present disclosure provide a device that includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor.
  • the computer program is executed by the processor, the second The steps of the CA parameter configuration method provided by the aspect.
  • embodiments of the present disclosure provide a communication system, which includes the device in the third aspect and the device in the fourth aspect.
  • the communication system includes the device in the fifth aspect described above, and the device in the sixth aspect described above.
  • the embodiments of the present disclosure provide a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the CA parameter in the first aspect or the second aspect is realized The steps of the configuration method.
  • the first device may send first information to the second device.
  • the first information is used to indicate the target CA parameter configured for the sidelink service.
  • the sidelink service is between the first device and the second device.
  • Sidelink business since the first device can send the first information to the second device, the second device can determine the target CA parameter configured for the sidelink service between the first device and the second device according to the first information. In this way, in certain scenarios (for example, fast transmission scenarios), the first device and the second device can perform CA data transmission according to the target CA parameters, thereby improving the transmission rate and reception effect of the sidelink service, thereby improving users Business experience.
  • FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the disclosure
  • FIG. 2 is one of the schematic diagrams of a CA parameter configuration method provided by an embodiment of the disclosure
  • FIG. 3 is a second schematic diagram of a CA parameter configuration method provided by an embodiment of the disclosure.
  • FIG. 4 is the third schematic diagram of a CA parameter configuration method provided by an embodiment of the disclosure.
  • FIG. 5 is a fourth schematic diagram of a CA parameter configuration method provided by an embodiment of the disclosure.
  • FIG. 6 is one of the schematic structural diagrams of the device provided by the embodiment of the disclosure.
  • FIG. 7 is the second structural diagram of the device provided by an embodiment of the disclosure.
  • FIG. 8 is a schematic diagram of hardware of a UE provided by an embodiment of the disclosure.
  • first and second in the specification and claims of the present disclosure are used to distinguish different objects, rather than to describe a specific order of objects.
  • first control signaling, the second control signaling, and the third control signaling are used to distinguish different control signaling, rather than to describe a specific sequence of control signaling.
  • words such as “exemplary” or “for example” are used as examples, illustrations, or illustrations. Any embodiment or design solution described as “exemplary” or “for example” in the embodiments of the present disclosure should not be construed as being more advantageous than other embodiments or design solutions. To be precise, the use of words such as “exemplary” or “for example” aims to present related concepts in a specific manner.
  • CA technology refers to a technology introduced in the LTE-A (long term evolution-advanced) system. This technology can increase the transmission bandwidth by aggregating multiple component carriers (CC). The receiving end device can determine how many carriers can be used for transmission at the same time according to its multi-carrier receiving capability.
  • LTE-A long term evolution-advanced
  • Sidelink technology It can be called side link technology, secondary link technology, side link technology or side link technology, etc. It refers to the technology that can directly transmit data between UEs without using network side equipment.
  • sidelink transmission mainly includes several transmission forms: broadcast, groupcast and unicast.
  • V2X Vehicle to everything
  • V2X technology refers to the technology that the vehicle can communicate with other surrounding vehicles and other related equipment. It mainly includes basic safety communications, advanced driving, vehicle formation, and sensor expansion.
  • Base station scheduling mode refers to the mode in which the network side device controls and allocates resources for each UE.
  • UE autonomous mode refers to a mode in which the UE autonomously selects resources.
  • the embodiments of the present disclosure provide a CA parameter configuration method, device, and system.
  • a first device can send first information to a second device.
  • the first information is used to indicate a target CA parameter configured for a sidelink service.
  • the sidelink service is The sidelink service between the first device and the second device.
  • the second device can determine the target CA parameter configured for the sidelink service between the first device and the second device according to the first information.
  • the first device and the second device can perform CA data transmission according to the target CA parameters, thereby improving the transmission rate and reception effect of the sidelink service, thereby improving users Business experience.
  • the CA parameter configuration method, device, and system provided by the embodiments of the present disclosure can be applied to various communication systems, such as NR sidelink and LTE V2X.
  • Fig. 1 shows a schematic structural diagram of a communication system provided by an embodiment of the present disclosure.
  • the communication system may include a first device 01, a second device 02, and an access network device 03.
  • a wireless connection can be established between the first device 01 and the access network device 03
  • a sidelink connection can be established between the first device 01 and the second device 02.
  • both the first device and the second device may be UEs.
  • a UE is a device that provides voice and/or data connectivity to users, a handheld device with wired/wireless connection functions, or other processing devices connected to a wireless modem.
  • the UE may communicate with one or more core network devices through a radio access network (RAN).
  • RAN radio access network
  • the UE can be a mobile terminal, such as a mobile phone (or called a "cellular" phone) and a computer with a mobile terminal. It can also be a portable, pocket-sized, handheld, built-in computer or vehicle-mounted mobile device, which exchanges languages with the RAN And/or data, for example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (personal digital assistants) , PDA) and other equipment.
  • PCS personal communication service
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistants
  • the UE may also be referred to as a user agent or terminal device.
  • the access network device is a device deployed in the RAN to provide wireless communication functions for the UE.
  • the access network device may be a base station, and the base station may include various forms of macro base stations, micro base stations, relay stations, access points, and so on.
  • the names of devices with base station functions may be different.
  • gNB 5G base station
  • 4G fourth-generation wireless communication
  • eNB evolved NodeB
  • 3G third-generation mobile communication
  • base station may change.
  • the CA parameter configuration method may include the following steps 201 and 202.
  • Step 201 The first device sends first information to the second device, where the first information is used to indicate the target CA parameters configured for the sidelink service.
  • Step 202 The second device receives the first information.
  • the aforementioned sidelink service may be a sidelink service between the first device and the second device, that is, the sidelink service may be a service that uses sidelink transmission between the first device and the second device.
  • the first device may be a transmitting-end UE
  • the second device may be a receiving-end UE
  • the transmission mode adopted by the first device and the second device may be a sidelink transmission mode.
  • the sidelink transmission adopted by the first device and the second device may specifically be unicast, multicast, or broadcast. Specifically, it can be determined according to actual usage requirements, and the embodiment of the present disclosure does not limit it.
  • the communication interface between the first device and the second device may be a PC5 interface or other possible interfaces.
  • the above-mentioned target CA parameters can be implemented in the following manner one or two:
  • the aforementioned target CA parameter may include at least one of the following: a first carrier configuration list, at least one second carrier configuration list, and first indication information corresponding to each service.
  • the first carrier configuration list corresponds to at least one service.
  • Each second carrier configuration list corresponds to one service.
  • the first indication information corresponding to a service is used to indicate whether a service performs CA transmission.
  • the first information may be carried in PC5 radio resource control (radio resource control, RRC) signaling, or other possible information.
  • PC5 RRC signaling it will be specifically described in the following embodiments, which will not be repeated here.
  • the aforementioned target CA parameter may include at least one of the following: a first carrier activation list, the number of CA carriers, and second indication information.
  • the first carrier activation list corresponds to the target service.
  • the number of CA carriers corresponds to the target service.
  • the second indication information may be used to indicate whether the target service performs CA transmission.
  • the target business can be all business or specific business.
  • the first information when the target CA parameter indicated by the first information is mode 2, the first information may be carried in a layer 2 (layer 2, L2) data packet or L2 control signaling , Or other possible information.
  • layer 2, L2 data packet or L2 control signaling the details will be described in the following embodiments, which will not be repeated here.
  • all the above-mentioned services may be all services for a pair of destination ID/source ID.
  • the target domain is carried in the L2 data packet or L2 control signaling, and the target domain is based on a unified value of a pair of destination ID/source ID, then all services between a pair of UEs use this domain The value is taken as the number of carriers used for transmission.
  • the aforementioned specific service may be a certain type of service for all services of a pair of destination ID/source ID.
  • the L2 data packet or L2 control signaling carries a target domain
  • the target domain is based on the value of a logical channel identification (LCID) in a pair of destination ID/source ID
  • LCID logical channel identification
  • the value of the LCID can be used as the number of carriers used for transmission.
  • the embodiment of the present disclosure provides a CA parameter configuration method. Since the first device can send the first information to the second device, the second device can determine the sidelink service provider between the first device and the second device according to the first information. Configured target CA parameters. In this way, in certain scenarios (for example, fast transmission scenarios), the first device and the second device can perform CA data transmission according to the target CA parameters, thereby improving the transmission rate and reception effect of the sidelink service, thereby improving users Business experience.
  • the foregoing step 201 may be specifically implemented by the following step 201A.
  • the foregoing step 202 may be specifically implemented by the following step 202A.
  • Step 201A The first device sends target information to the second device, where the target information includes the first information.
  • step 201 and step 202 For the description of the first information, reference may be made to the related descriptions in step 201 and step 202, which will not be repeated here.
  • Step 202A The second device receives the target information.
  • the foregoing target information may be any of the following: PC5 RRC signaling, L2 data packet, and L2 control signaling.
  • the PC5 RRC signaling may be a set of specific information organization forms that adopts a format prescribed by a standard and uses a special mark for identification.
  • a special logical channel ID can be used, such as LCID to mark PC5 RRC signaling. If the receiving end UE receives the data whose logical channel ID conforms to the format specified by the standard, it can be determined that this is a PC5 RRC signaling, and it can be parsed according to the format of the PC5 RRC signaling to obtain the meaning.
  • the above-mentioned PC5 RRC signaling may be in any of the following forms: a one-to-one RRC signaling between the sender UE and the receiver UE established for unicast, and the sender established for multicast One-to-one RRC signaling with each receiving end UE, one-to-many RRC signaling between the sending end and a specific number of receiving end UEs established for multicast, and the one-to-many RRC signaling established for the broadcast sending end and One-to-many RRC signaling between an uncertain number of receiving end UEs.
  • L2 may be a media access control (MAC) layer, a radio link control (radio link control, RLC) layer, etc.
  • MAC media access control
  • RLC radio link control
  • the first information may specifically be carried in an L2 data protocol data unit (protocol data unit, PDU).
  • PDU protocol data unit
  • the first information may be carried in the MAC data PDU, or in the RLC data PDU, or in the packet data convergence protocol (packet data convergence protocol, PDCP) data PDU.
  • packet data convergence protocol packet data convergence protocol
  • the advantage of carrying the first information in the MAC data PDU is that the MAC layer is the L2 sublayer closest to the transmission, and the carrier information is usually carried in the MAC; the first information is carried in the RLC data
  • PDU is that it can carry different CA information for each service or each logical channel.
  • the L2 control signaling may be a MAC control element (CE), or other possible L2 control signaling.
  • CE MAC control element
  • the following three embodiments will exemplify the target information as PC5 RRC signaling, L2 data packet, and L2 control signaling more clearly.
  • the target information is PC5 RRC signaling.
  • the target CA parameter (that is, the first information) may be carried in PC5 RRC signaling.
  • the target CA parameter may specifically include at least one of the following: a first carrier configuration list, at least one second carrier configuration list, and first indication information corresponding to each service.
  • An optional implementation manner is that the target CA parameters only include the first carrier configuration list, and in this manner, by default, all services can use the carriers configured in the first carrier configuration list for CA transmission.
  • the target CA parameter may also include first indication information.
  • the first indication information may be used to instruct all services to use the carrier configured in the first carrier configuration list for CA transmission.
  • the first carrier configuration list is configured with 5 carriers, and there are two services to be transmitted between the first device and the second device, then these two services to be transmitted can use these 5 carriers for CA transmission .
  • An optional implementation manner is that the target CA parameter only includes at least one second carrier configuration list, and in this manner, by default, each service can use the carrier configured in the second carrier configuration list corresponding to each service for CA transmission.
  • the target CA parameter may also include at least one second indication information.
  • one second carrier configuration list corresponds to one second indication information, and one second indication information may be used to indicate that a service uses a carrier configured in the corresponding second carrier configuration list for CA transmission.
  • the service to be transmitted 1 can use carrier 1 and carrier 2.
  • Service 2 to be transmitted can use carrier 1 to carrier 5 for CA transmission.
  • the target CA parameter includes at least one second carrier configuration list and the first indication information corresponding to each service
  • the service to be transmitted 1 is allowed to use carrier 1 for transmission; according to the first indication information corresponding to the service to be transmitted 2 and the second carrier configuration list corresponding to the service to be transmitted 2, it can be known that the service to be transmitted 2 is allowed to use carrier 1 to carrier 5. transmission.
  • the aforementioned PC5 RRC signaling may be pre-configured in advance or agreed upon. For example, it can be transmitted on a common carrier; or, in the list of high-level instructions for service transmission, specify a specific carrier, such as explicitly indicating the default carrier; or, agree to use the carrier with the lowest frequency/highest frequency for transmission . It is understandable that when PC5 RRC signaling is transmitted, if the receiving end UE has the capability or the reception is uncertain, such as multicast, it can be improved by pre-configuring or agreeing on which carrier the PC5 RRC signaling is to be transmitted in advance. Receive the effect.
  • the embodiments of the present disclosure also provide the following method for activating or deactivating the carrier corresponding to the target CA parameter.
  • the above step 201A can be specifically implemented by the following step 201A1. Furthermore, after the above step 201A1, the CA parameter configuration method provided by the embodiment of the present disclosure may further include the following steps 203 to 205.
  • Step 201A1 The first device sends target information to the second device, where the target information includes the first information, and the target information is PC5 RRC signaling.
  • Step 203 The first device sends first control signaling to the second device, where the first control signaling is used to indicate the processing mode of each carrier in the target carrier.
  • Step 204 The second device receives the first control signaling.
  • Step 205 The second device activates or deactivates each carrier according to the first control signaling.
  • the above processing method can be activation or deactivation.
  • the foregoing target carrier may be a carrier among the carriers corresponding to the target CA parameter.
  • the foregoing first control signaling may belong to L2 control signaling, and specifically may belong to MAC CE.
  • the foregoing target carrier may be all or some of the carriers corresponding to the target CA parameter.
  • the target carrier may be a carrier other than the primary carrier among the carriers corresponding to the target CA parameters.
  • the target carrier is all the carriers corresponding to the target CA parameter.
  • the PC5 RRC signaling (that is, target information) sent by the first device to the second device may give an indication of displaying a special carrier, and the special carrier may be the main carrier. Since the primary carrier is characterized by always being in the active state, the carriers other than the primary carrier among the carriers corresponding to the target CA parameters can be used as secondary carriers, and the secondary carriers can be activated or deactivated by MAC CE (i.e. first control signaling).
  • the initial state of the secondary carrier may be an activated state or an inactive state.
  • the first information does not indicate the primary carrier of the CA
  • the initial configuration is completed according to the PC5 RRC signaling
  • at least one of the carriers corresponding to the target CA parameters is in the activated state.
  • the carrier information carried in PC5 RRC signaling may specifically include at least one of the following: center frequency, bandwidth, cell ID, physical layer cell ID, and so on.
  • the second device activates or deactivates each carrier according to the first control signaling, which may include: according to the appearance order of each carrier in the PC5 RRC signaling (ie, target information), the appearance order may be As a sequential number, the carrier corresponding to the number is activated or deactivated.
  • the appearance order may be As a sequential number, the carrier corresponding to the number is activated or deactivated.
  • the first information is also used to indicate the primary carrier of the CA, and the first control signaling belongs to the MAC CE.
  • the other 4 secondary carriers correspond to the 4 bits of MAC CE in the form of bitmaps. For each position of 4 bits, if the value of a position is 1, it indicates that the carrier corresponding to that position is activated; if the value of a position is 0, it is used to indicate that the carrier corresponding to the position is activated. go activate. In this way, the second device can activate or deactivate the carrier at each position according to the value of each position of the 4 bits. It can be understood that this carrier numbering method can simplify the first control signaling and reduce overhead.
  • the second device may receive data on the one carrier, perform signaling feedback, and perform corresponding measurements. If the second device deactivates a carrier according to the first control signaling, the second device can abandon the monitoring of the carrier.
  • the first device and the second device can reach an agreement on the configuration of the carrier and the processing method of the carrier.
  • the UE at the receiving end may change dynamically, that is, UEs continue to withdraw or join.
  • the first possible implementation is that the first device sends the carrier configuration to the newly joined receiving end UE in unicast form, and the first device
  • the processing method of periodically sending the carrier to the newly added receiving end UE; the second possible implementation manner is that the first device periodically sends the configuration of the carrier and the processing method of the carrier to the newly added receiving end UE.
  • the foregoing step 201A1 may be specifically implemented by the following step 201A11
  • the foregoing step 203 may be specifically implemented by the following step 203A.
  • Step 201A11 The first device periodically sends target information to the second device.
  • the target information includes the first information, and the target information is PC5 RRC signaling.
  • Step 203A The first device periodically sends the first control signaling to the second device.
  • the first control signaling is used to indicate the processing mode of each carrier in the target carrier.
  • the first device may periodically send the target information to the second device according to the first cycle; the first device may periodically send the target information to the second device according to the second cycle.
  • the period length of the first period and the period length of the second period may be the same or different, and may be specifically determined according to actual usage requirements.
  • the newly joined receiving end UE may perform multi-carrier blind detection to obtain service data.
  • the first device since the receiving end UE can change dynamically, the first device periodically sends the target information and the first control signaling to the newly added receiving end UE to enable the newly added receiving end UE Obtain the carrier configuration and carrier processing mode, and better receive data according to your own multi-carrier receiving capabilities.
  • the target information is an L2 packet.
  • the PC5 RRC signaling provided in the first embodiment above is more suitable for unicast, because unicast is a one-to-one mapping method for the sender UE and the receiver UE, and this mapping method can be well maintained
  • the status between the UE at the sending end and the UE at the receiving end is synchronized.
  • the receiving end UE may dynamically change, for example, the receiving end UE may dynamically join or withdraw from data reception, so PC5 RRC signaling cannot guarantee the intermediate joining of the receiving end UE.
  • the configuration of the carrier and the processing method of the carrier can be obtained in time.
  • the embodiment of the present disclosure may use L2 data packets to carry the first information, so that the receiving end UE that joins in the middle can obtain the carrier configuration and the carrier processing mode in time.
  • the first information may specifically be carried in the header of the L2 data packet of the PC5 interface.
  • the target CA parameter may be configured by the base station or the first device (that is, the sending end UE).
  • the target CA parameter ie, the first information
  • the target CA parameter may be carried in the L2 data packet, or the target CA parameter may be indicated by the first information in the L2 data packet.
  • the first information may occupy the reserved R bits in the R16 version introduced by NR V2X, or may increase bits or bytes.
  • the R17 version introduces CA transmission, and the reserved R bits in the R16 version can be used directly.
  • the target CA parameter may specifically include at least one of the following: a first carrier activation list, the number of CA carriers, and second indication information.
  • the second indication information may specifically be a 1-bit value in the L2 data packet, and the 1-bit value may be used to indicate whether the target service performs CA transmission.
  • the value of 1 bit when the value of 1 bit is 1, it means that the target service starts CA transmission; when the value of 1 bit is 0, it means that the target service is performing single carrier transmission. Or, when the value of 1 bit is 1, it represents that the target service is performing single carrier transmission; when the value of 1 bit is 0, it represents that the target service starts CA transmission.
  • one bit may be used to indicate whether the target service performs CA transmission. For example, when the value of 1 bit is 1, it represents that the service or logical channel represented by the RLC or PDCP entity starts CA transmission; when the value of 1 bit is 0, it represents that single carrier transmission is performed.
  • one bit can be used to indicate whether the target service performs CA transmission. For example, when the value of 1 bit is 1, it means that all services between a pair of destination ID/source ID are enabled for CA transmission; when the value of 1 bit is 0, it means that single carrier transmission is performed.
  • one bit can be used to indicate whether the target service performs CA transmission. For example, when the value of 1 bit is 1, it means that a logical channel between a pair of destination ID/source ID starts CA transmission; when the value of 1 bit is 0, it means that single carrier transmission is performed.
  • the frequency point configuration information needs to be satisfied.
  • the V2X higher layer will inform the first device of the attribute information of the service, such as the QoS requirements of the service, flow information, and frequency information allowed for transmission. If the frequency point information allowed for transmission of the service includes multiple frequency points, and multiple frequency points are allowed to be sent at the same time, the first device allows CA transmission when sending the service.
  • the resource allocation mode adopted by the first device may be Mode1 or Mode2.
  • the first optional implementation is:
  • the network side device controls whether the service performs CA transmission.
  • the first device may carry 1 in the header of the L2 Data PDU of the PC5 interface; when the network-side device explicitly or implicitly indicates single-carrier transmission, A device can carry 0 in the header of the L2 Data PDU of the PC5 interface.
  • the second optional implementation is:
  • the first device controls whether the service performs CA transmission.
  • the first device can start the CA to transmit the service and carry 1 in the header of the PC5 interface L2 Data PDU; otherwise, the first device can carry 0 in the header of the PC5 interface L2 Data PDU.
  • condition for the transmission between the first device and the second device to be converted from CA transmission to single carrier transmission may be network configuration, network pre-configuration, or standard regulation.
  • the first device may carry information indicating single carrier transmission in the header of the L2 Data PDU of the PC5 interface.
  • the first device carries 1/0 in the L2 data packet, which is a relatively semi-static indication, that is, each state represents a period of time, but does not represent the current data packet transmission. That is, the current transmission time interval (TTI) does not necessarily mean that multiple carriers are transmitting at the same time. This depends on the actual resource availability. However, at this time, the first device will try to perform multi-carrier simultaneous transmission. To obtain greater throughput.
  • TTI current transmission time interval
  • the number of CA carriers can be specifically indicated by the value of the target field in the L2 data packet.
  • the target CA parameter may only include the number of CA carriers; or, the target CA parameter may include the number of CA carriers and the second indication information.
  • each data packet can carry the target domain. If the target domain is based on a unified value of a pair of destination ID/source ID, then all services between a pair of UEs can use the value of the target domain as the number of CA carriers; if the target domain is based on a pair of destination ID/Source If one LCID in the ID takes a value, then a service between a pair of UEs can use the value of the target domain as the number of CA carriers. In addition, the value range of the number of CA carriers is limited by the maximum capability of the UE.
  • the number field of CA carriers can be a 3bit binary header field, with a value of 000-111.
  • the values respectively represent the use of 1-8 carriers for aggregate transmission.
  • the target CA parameter includes the number of CA carriers and the second indication information.
  • the second indication information indicates single carrier transmission, a bit value is 0, and there is no need to limit the number of CA carriers.
  • the second indication information indicates CA transmission, one bit has a value of 1.
  • the number of CA carriers needs to be limited.
  • the number field of CA carriers can be a 2bit binary header field, and the value of 00-11 means that 1-4 carriers are used for aggregate transmission.
  • the 2bit binary header field can have a new meaning, and the value of 00-11 can respectively represent the use of 2-5 carriers for aggregate transmission.
  • the scope of the target domain can be based on all services of a pair of UEs, or for a specific service (ie each The CA parameters of the service can be different).
  • the first device when it performs CA transmission, it needs to meet frequency point configuration information. Specifically, when the first device initiates a service, the V2X higher layer will inform the first device of the attribute information of the service, such as the QoS requirements of the service, flow information, and frequency information allowed for transmission. If the frequency information allowed for transmission of the service includes multiple frequency points, and multiple frequency points are allowed to be sent at the same time, the first device allows CA transmission when sending the service, and carries the information indicating CA in the L2 data packet. The first information about the number of carriers.
  • the resource allocation mode adopted by the first device may be Mode1 or Mode2.
  • the first optional implementation is:
  • the network side device controls the number of CA carriers.
  • the first device when the network-side device explicitly or implicitly instructs the activation of CA transmission, the first device may carry the first information used to indicate the number of CA carriers in the L2 Data PDU header of the PC5 interface; when the network-side device displays When single-carrier transmission is indicated explicitly or implicitly, the first device may carry no information or information indicating single-carrier transmission in the header of the L2 Data PDU of the PC5 interface.
  • the second optional implementation is:
  • the first device controls the number of CA carriers by itself.
  • the first device can start CA to transmit the service, and select the number of CA carriers according to a predetermined rule, and carry the first information used to indicate the number of carriers of CA in the header of the PC5 interface L2 Data PDU; Otherwise, the first device may carry no information or carry information indicating single carrier transmission in the header of the L2 Data PDU of the PC5 interface.
  • the conditions under which the transmission between the first device and the second device is converted from CA transmission to single carrier transmission may be network configuration, pre-configuration, or standard regulation.
  • the first device may carry information indicating single carrier transmission in the header of the L2 Data PDU of the PC5 interface.
  • the number of CA carriers carried by the first device in the L2 data packet is a relatively semi-static indication, that is, each state represents a period of time, and does not represent the current data packet transmission. That is, the current transmission time interval (TTI) does not necessarily mean that multiple carriers are transmitting at the same time. This depends on the actual resource availability. However, at this time, the first device will try to perform multi-carrier simultaneous transmission. To obtain greater throughput.
  • TTI current transmission time interval
  • the CA configuration parameters during CA transmission can be further refined, but the overhead will be increased.
  • the first carrier activation list may be specifically indicated by the value of the target field in the L2 data packet.
  • the target CA parameter may only include the first carrier activation list, or the target CA parameter may include the first carrier activation list and the second indication information.
  • each data packet may carry the target domain. If the target domain is based on a unified value of a pair of destination ID/source ID, all services between a pair of UEs can use the value of the target domain as the first carrier activation list; if the target domain is based on a pair of destination ID/Source If one LCID in the ID takes a value, then a service between a pair of UEs can use the value of the target domain as the first carrier activation list.
  • the target CA parameter includes the first carrier activation list and the second indication information.
  • the second indication information indicates single carrier transmission, one bit has a value of 0, and there is no need to limit the first carrier activation list; and when the second indication information indicates CA transmission, one bit has a value of 1.
  • the first carrier activation list needs to be limited.
  • the scope of the target domain can be based on all services of a pair of UEs, or for a specific service (ie each The CA parameters of the service can be different).
  • the overhead of carrying the specific information list of the carrier in the L2 data packet since the overhead of carrying the specific information list of the carrier in the L2 data packet is relatively large, it may be considered to broadcast the information list (such as frequency point, frequency point, etc.) used for V2X CA transmission in the cell system information block (SIB).
  • SIB cell system information block
  • one byte For example, if the value of one byte is 01001000, it means that carrier 2 and carrier 5 in the carrier list of SIB participate in transmission, and other carriers do not participate in transmission. Or, if the value of one byte is 01001000, it means that carrier 4 and carrier 7 in the carrier list of SIB participate in transmission, and other carriers do not participate in transmission.
  • the first device when the first device performs CA transmission, it needs to meet frequency point configuration information. Specifically, when the first device initiates a service, the V2X higher layer will inform the first device of the attribute information of the service, such as the QoS requirements of the service, flow information, and frequency information allowed for transmission. If the frequency information allowed for transmission of the service includes multiple frequency points, and multiple frequency points are allowed to be sent at the same time, then the first device allows CA transmission when sending the service, and carries in the L2 data packet to indicate the first The first information of the carrier activation list.
  • the attribute information of the service such as the QoS requirements of the service, flow information, and frequency information allowed for transmission.
  • the resource allocation mode adopted by the first device may be Mode1 or Mode2.
  • the first optional implementation is:
  • the network side device controls the carrier activation list.
  • the first device when the network side device explicitly or implicitly instructs to activate CA transmission, the first device may carry the first information used to indicate the first carrier activation list in the header of the PC5 interface L2 Data PDU; when the network side device displays When single-carrier transmission is indicated explicitly or implicitly, the first device may carry no information or information indicating single-carrier transmission in the header of the L2 Data PDU of the PC5 interface.
  • the second optional implementation is:
  • the first device controls the carrier activation list by itself.
  • the first device can start the CA to transmit the service, and select the first carrier activation list according to predetermined rules, and carry the first information used to indicate the first carrier activation list in the header of the PC5 interface L2 Data PDU; Otherwise, the first device may carry no information or carry information indicating single carrier transmission in the header of the L2 Data PDU of the PC5 interface.
  • condition for the transmission between the first device and the second device to be converted from CA transmission to single carrier transmission may be network configuration, pre-configuration or standard stipulation.
  • the first device may carry information indicating single carrier transmission in the header of the L2 Data PDU of the PC5 interface.
  • the first device carries the first carrier activation list in the L2 data packet, which is a relatively semi-static indication, that is, each state represents a period of time, and does not represent the current data packet transmission. That is, the current transmission time interval (TTI) does not necessarily mean that multiple carriers are transmitting at the same time. This depends on the actual resource availability. However, at this time, the first device will try to perform multi-carrier simultaneous transmission. To obtain greater throughput.
  • TTI current transmission time interval
  • the CA configuration parameters during CA transmission can be further refined, but the overhead will be increased.
  • the above step 201A can be specifically implemented by the following step 201A2.
  • the CA parameter configuration method provided by the embodiment of the present disclosure may further include the following step 206.
  • Step 201A2 The first device sends target information to the second device, where the target information includes the first information, and the target information is an L2 data packet.
  • Step 206 Within the first time period after the first device sends the target information to the second device, the first device prohibits indicating the reconfigured CA parameter to the second device.
  • the first duration may be configured, pre-configured, or specified in standards.
  • the first device After the first device sends the L2 data packet including the first information to the second device, if the target CA parameter indicated by the first information is configured for the first time or the CA indication information changes, the first device You can start a timer that prohibits further changes.
  • the CA indication information is prohibited from changing, that is, the first device is prohibited from indicating to the second device the reconfigured CA parameters, for example, the first device is prohibited from indicating to the second device whether the reconfigured target service performs CA The number of CA carriers for transmission and reconfiguration, and the reconfiguration carrier activation list.
  • the timing of the timer exceeds the first duration, the CA indication information change is allowed again, that is, the first device allows the second device to indicate the reconfigured CA parameter.
  • the target service can be avoided Whether to change the CA transmission instructions, the number of CA carriers, and the frequent changes of the carrier activation list, so as to avoid the ambiguity in understanding the CA configuration due to out-of-sequence of data packets, thereby ensuring that the second device can receive normally business.
  • the CA parameter configuration method provided in the embodiment of the present disclosure may further include the following step 207.
  • Step 207 The second device receives the service according to the capability information of the second device and the target CA parameter.
  • the capability information of the second device may be used to indicate the multi-carrier receiving capability of the second device.
  • step 207 may be specifically implemented by the following (a1) or (b1).
  • the second device receives the first service on the first carrier.
  • the first carrier is a single carrier.
  • the target CA parameter indicates that the first service is transmitted on M second carriers
  • the second device is The first service is received on the second carrier; or, if the multi-carrier receiving capability of the second device is not within the capability indicated by the target CA parameter, the second device abandons receiving the first service of the second device on the M second carriers.
  • M is an integer greater than 1.
  • the second device may receive the first service on the first carrier indicated by the first information.
  • the second device may be on M carriers Try to receive the first service. For the same destination ID/source ID and the same LCID, the second device can determine that the data received on multiple carriers belong to the same service data, and send these data to an RLC/PDCP entity for processing.
  • the second device can give up receiving the first service of the second device on the M second carriers if the carriers that are allowed to send the service from the V2X higher layer are beyond the range of the second device's multi-carrier receiving capability.
  • the second device may monitor multiple carriers for a period of time. That is, after "receiving the first service on M second carriers" in (b) above, the CA parameter configuration method provided by the embodiment of the present disclosure may further include the following (c1) to (e1).
  • the second device receives the target indication information sent by the first device, where the target indication information is used to indicate that the second service is transmitted on the third carrier.
  • the third carrier is a single carrier.
  • the second device stops receiving the first service on the M second carriers, and starts to receive the second service on the third carrier.
  • the foregoing second duration may be a configured, pre-configured or standard-specified timer length.
  • the CA parameter configuration method provided by the embodiments of the present disclosure may allow the second device to monitor multiple carriers for a period of time when converting from multiple carriers to single carriers, thereby avoiding incomplete service reception caused by disorder of data packets.
  • the target information is L2 control signaling.
  • the second embodiment above introduces the method of using L2 data packets to carry the first information.
  • the advantage is that it is convenient for the UE that joins in the middle to receive the first information while receiving the data packet, but there may be data format compatibility and Overhead issues.
  • the CA parameter configuration method provided by the embodiment of the present disclosure can use L2 control signaling to carry the first information, so that the problem of data format compatibility can be solved and the overhead can be reduced.
  • the L2 control signaling may specifically be MAC CE.
  • the target CA parameter may be configured by the base station or the first device.
  • the target CA parameter (ie, the first information) may be carried in the L2 control signaling, or the target CA parameter may be indicated by the first information in the L2 control signaling.
  • the first information may occupy the reserved R bits in the R16 version introduced by NR V2X, or may increase bits or bytes.
  • the R17 version introduces CA transmission, and the reserved R bits in the R16 version can be used directly.
  • the target CA parameters may specifically include at least one of the following: the first carrier activation list, the number of CA carriers, and the second indication information.
  • the target information is L2 control signaling
  • the target CA parameter is the first carrier activation list
  • the target CA parameter is the number of CA carriers
  • the target CA parameter is the second indication information for specific descriptions, please refer to The related description in the second embodiment above will not be repeated here.
  • the sending mode of the L2 control signaling may specifically be: event trigger mode or periodic trigger mode.
  • the CA parameter configuration method provided by the embodiment of the present disclosure may further include the following step 208.
  • Step 208 When the target CA parameter changes, the first device immediately sends second control signaling to the second device.
  • the second control signaling includes second information, and the second information is used to indicate the reconfiguration target.
  • CA parameters wherein, the second control signaling belongs to L2 control signaling.
  • the first device can immediately resend the new MAC CE to the second device; and when the target CA parameter does not change, the first device does not need to send the MAC CE.
  • the reconfigured target CA parameter indicated by the second information needs to meet the frequency configuration information sent by the network side device to the first device.
  • the frequency configuration information sent by the network side device to the first device For details, reference may be made to the related description in the second embodiment above, which will not be repeated here.
  • the resource allocation mode adopted by the first device may be Mode1 or Mode2.
  • the network-side device controls the target CA parameters of the service; if the resource allocation method adopted by the first device is Mode2, the first device controls the service Target CA parameters.
  • the CA parameter configuration method provided by the embodiment of the present disclosure may further include the following step 209 or step 210.
  • Step 209 When the target CA parameter changes, the first device immediately sends second control signaling to the second device.
  • the second control signaling includes second information, and the second information is used to indicate the reconfiguration target.
  • CA parameters wherein, the second control signaling belongs to L2 control signaling.
  • Step 210 When the target CA parameter does not change, the first device periodically sends third control signaling to the second device, and the third control signaling includes the first information.
  • the third control signaling belongs to L2 control signaling.
  • the CA parameter configuration method provided by the embodiment of the present disclosure may further include step 211.
  • Step 211 When the target CA parameter does not change, the first device periodically sends second control signaling to the second device.
  • the second control signaling and the third control signaling may specifically belong to MAC CE.
  • the period length, period start point, and period offset position of the period transmission may be configured by the network side device, pre-configured, or specified by the standard.
  • the first device may restart the periodic timer.
  • the first device can send the first information to the second device again, and restart the periodic timer after sending the first information again That is, the first device may periodically send the third control signaling including the first information to the second device.
  • the first device can immediately send the second control signaling including the second information to the second device, and immediately after the second control signaling is sent Restart the periodic timer. Then, after the restarted periodic timer expires, if the target CA parameter does not change, the first device can periodically send the second control signaling to the second device; and during the restarted periodic timer, if the target If the CA parameter changes again, the first device can immediately send control signaling including the new configuration information to the second device, and immediately restart the periodic timer again after sending the control signaling.
  • L2 control signaling and data packets including CA configuration information can be sent at the same time, that is, L2 control signaling and data packets are multiplexed only when there are data packets to be sent; and if there is no data packet to send temporarily , The sending of L2 control signaling can be delayed.
  • the CA parameter configuration method provided in the embodiment of the present disclosure may further include the following step 212.
  • Step 212 The second device determines whether to update the target CA parameters stored in the second device according to the target information.
  • the value tag field can be introduced in the MAC CE, and the value of the value tag field can be used to indicate whether the target CA parameters are reconfigured.
  • the target information may also include a value tag field (that is, an indication field), and the indication field of the target information may be used to indicate whether the target CA parameter is reconfigured.
  • a value tag field that is, an indication field
  • the second control signaling may also include a value tag field (that is, an indication field), and the indication field of the second control signaling may be used to indicate the target CA Whether to reconfigure the parameters.
  • the third control signaling may also include a value tag field (that is, an indication field), and the indication field of the third control signaling may be used to indicate the target CA Whether to reconfigure the parameters.
  • step 212 may be specifically implemented by the following step 212A or step 212B:
  • Step 212A When the value of the indication field in the target information is the same as the first value, the second device determines not to update the target CA parameter saved in the second device.
  • Step 212B When the value of the indication field in the target information is different from the first value, the second device determines to update the target CA parameter saved in the second device.
  • the first value may be the value of the indication field received by the second device last time.
  • the value of the indication field of the L2 control signaling may be stored in the second device.
  • the value of the first set value tag field can be 0, and 0 can be used to represent the target CA parameter sent for the first time.
  • the second device may determine that the target CA parameter has not been reconfigured, and determine not to update the target CA parameter saved in the second device; If the value of the value tag field in the MAC CE that is sent again is 1 (that is, the value of the value tag field changes), the second device can determine that the target CA parameters have been reconfigured, and determine to update the target saved in the second device CA parameters.
  • the CA parameter configuration method provided by the embodiment of the present disclosure can indicate to the second device whether the target CA parameter is reconfigured through the value of the indication field carried in the L2 control signaling, so that the second device can determine whether to update according to the value of the indication field Target CA parameters saved in the second device.
  • the CA parameter configuration method provided by the embodiment of the present disclosure may further include the following step 213.
  • Step 213 The second device receives the service according to the capability information of the second device and the target CA parameter.
  • the capability information of the second device may be used to indicate the multi-carrier receiving capability of the second device.
  • step 212 may be specifically implemented by the following (a2) or (b2).
  • the second device receives the first service on the first carrier.
  • the first carrier is a single carrier.
  • the target CA parameter indicates that the first service is transmitted on M second carriers
  • the second device is The first service is received on the second carrier; or, if the multi-carrier receiving capability of the second device is not within the capability indicated by the target CA parameter, the second device abandons receiving the first service of the second device on the M second carriers.
  • M is an integer greater than 1.
  • the second device may receive the first service on the first carrier indicated by the first information.
  • the second device may be in M Try to receive the first service on the carrier. For the same destination ID/source ID and the same LCID, the second device can determine that the data received on multiple carriers belong to the same service data, and send these data to an RLC/PDCP entity for processing.
  • the second device can give up receiving the first service of the second device on the M second carriers.
  • the second device may monitor multiple carriers for a period of time. That is, after "receiving the first service on M second carriers" in (b) above, the CA parameter configuration method provided by the embodiment of the present disclosure may further include the following (c2) to (e2).
  • the second device receives target indication information sent by the first device, where the target indication information is used to indicate that the second service is transmitted on the third carrier.
  • the third carrier is a single carrier.
  • the second device stops receiving the first service on the M second carriers, and starts to receive the second service on the third carrier.
  • the foregoing second duration may be a configured, pre-configured or standard-specified timer length.
  • the CA parameter configuration method provided by the embodiments of the present disclosure may allow the second device to monitor multiple carriers for a period of time when converting from multiple carriers to single carriers, thereby avoiding incomplete service reception caused by disorder of data packets.
  • an embodiment of the present disclosure provides a device 600.
  • the device 600 may be the first device.
  • the first device may include a sending module 601.
  • the sending module 601 can be used to send first information to the second device.
  • the first information can be used to indicate the target CA parameters configured for the sidelink service.
  • the sidelink service can be between the first device and the second device. Sidelink business.
  • the sending module 601 may be specifically configured to send target information to the second device, and the target information may include the first information.
  • the target information can be any of the following: PC5 RRC signaling, L2 data packet, and L2 control signaling.
  • the target information is PC5 RRC signaling.
  • the sending module 601 may also be used to send the first control signaling to the second device after sending the target information to the second device.
  • the first control signaling can be used to indicate the processing mode of each carrier in the target carrier, the processing mode can be activation or deactivation, the target carrier is the carrier in the carrier corresponding to the target CA parameter, and the first control The signaling belongs to L2 control signaling.
  • the target carrier may be a carrier other than the primary carrier among the carriers corresponding to the target CA parameters; or, if the first information does not indicate The primary carrier of the CA, the target carrier may be all carriers corresponding to the target CA parameters.
  • the sending module 601 may be specifically configured to periodically send target information to the second device, and periodically send the first control signaling to the second device.
  • the target information is an L2 data packet.
  • the first device may further include a control module 602.
  • the control module 602 may be configured to prohibit the instruction of the reconfigured CA parameter to the second device within the first time period after the sending module 601 sends the target information to the second device.
  • the target information is L2 control signaling.
  • the sending module 601 may also be used to send second control signaling to the second device immediately after sending target information to the second device when the target CA parameters change; or, when the target CA parameters have not changed
  • the third control signaling is periodically sent to the second device.
  • the second control signaling may include second information, the second information is used to indicate the reconfigured target CA parameter, the second control signaling belongs to L2 control signaling; the third control signaling may include the first One piece of information, the third control signaling may belong to L2 control signaling.
  • the sending module 601 may also be used to send the second control signaling to the second device periodically after the second control signaling has not changed.
  • the second control signaling may also be used to send the second control signaling to the second device periodically after the second control signaling has not changed.
  • the above-mentioned third control signaling may further include an indication field, and the indication field may be used to indicate whether the target CA parameter is reconfigured.
  • the above-mentioned target CA parameter may include at least one of the following: a first carrier configuration list, at least one second carrier configuration list, and first indication information corresponding to each service.
  • the first carrier configuration list corresponds to at least one service
  • each second carrier configuration list corresponds to one service
  • the first indication information corresponding to one service is used to indicate whether a service performs CA transmission.
  • the aforementioned target CA parameter may include at least one of the following: the first carrier activation list, the number of CA carriers, and the second indication information.
  • the first carrier activation list corresponds to the target service
  • the second indication information is used to indicate whether the target service performs CA transmission
  • the target service is all services or specific services.
  • the device provided in the embodiment of the present disclosure can implement each process implemented by the first device in the foregoing method embodiment. To avoid repetition, details are not described herein again.
  • the embodiment of the present disclosure provides a device, which may be a first device. Since the first device can send first information to the second device, the second device can be determined as the first device and the second device according to the first information.
  • the target CA parameters configured for the sidelink business between. In this way, in certain scenarios (for example, fast transmission scenarios), the first device and the second device can perform CA data transmission according to the target CA parameters, thereby improving the transmission rate and reception effect of the sidelink service, thereby improving users Business experience.
  • an embodiment of the present disclosure provides a device 700.
  • the device 700 may be a second device.
  • the second device may include a receiving module 701.
  • the receiving module 701 may be used to receive the first information sent by the first device, and the first information may be used to indicate the target CA parameter configured for the sidelink service.
  • the sidelink service may be the communication between the first device and the second device. Sidelink business.
  • the receiving module 701 may be specifically configured to receive target information sent by the first device, where the target information includes the first information.
  • the target information can be any of the following: PC5 RRC signaling, L2 data packet, and L2 control signaling.
  • the target information is PC5 RRC signaling.
  • the second device provided by the embodiment of the present disclosure may further include a control module 702.
  • the receiving module 701 may also be used to receive the first control signaling sent by the first device after receiving the target information sent by the first device, and the first control signaling may be used to indicate the processing mode of each carrier in the target carrier.
  • the processing method may be activation or deactivation
  • the target carrier may be a carrier in the carrier corresponding to the target CA parameter
  • the first control signaling belongs to L2 control signaling.
  • the control module 702 may be configured to activate or deactivate each carrier according to the first control signaling received by the receiving module 701.
  • the target information is an L2 data packet or L2 control signaling.
  • the receiving module 701 may also be configured to receive the service according to the capability information and target CA parameters of the second device after receiving the target information sent by the first device.
  • the capability information of the second device may be used to indicate the multi-carrier receiving capability of the second device.
  • the receiving module 701 may be specifically used to: when the target CA parameter indicates that the first service is transmitted on the first carrier, receive the first service on the first carrier, One carrier is a single carrier; or, when the target CA parameter indicates that the first service is transmitted on M second carriers, if the multi-carrier receiving capability of the second device is within the capability indicated by the target CA parameter, then The first service is received on M second carriers; or, if the target CA parameter indicates that the first service is transmitted on M second carriers, if the multi-carrier receiving capability of the second device is not within the capability indicated by the target CA parameter If the first service is received on the M second carriers, it is abandoned.
  • M is an integer greater than 1.
  • the receiving module 701 may also be used to: receive the target indication information sent by the first device after receiving the first service on the M second carriers; and after receiving the target indication information Within the second duration of the second period, continue to receive the first service on the M second carriers; and after the second duration, stop receiving the first service on the M second carriers, and start on the third carrier Up to receive the second service.
  • the target indication information may be used to indicate that the second service is transmitted on the third carrier, and the third carrier is a single carrier.
  • the target information is L2 control signaling.
  • the second device provided by the embodiment of the present disclosure may further include a determining module 703.
  • the determining module 703 may be configured to determine whether to update the target CA parameter stored in the second device according to the target information after the receiving module 701 receives the target information sent by the first device.
  • the target information may also include an indication field, and the indication field may be used to indicate whether the target CA parameter is reconfigured.
  • the determining module 703 may be specifically used to determine not to update the target CA parameter stored in the second device when the value of the indication field is the same as the first value; or, when the value of the indication field is different from the first value , Determine to update the target CA parameters saved in the second device.
  • the first value may be the value of the indication field received by the second device last time.
  • the above-mentioned target CA parameter may include at least one of the following: a first carrier configuration list, at least one second carrier configuration list, and first indication information corresponding to each service.
  • the first carrier configuration list corresponds to at least one service
  • each second carrier configuration list corresponds to one service
  • the first indication information corresponding to one service is used to indicate whether a service performs CA transmission.
  • the aforementioned target CA parameter may include at least one of the following: the first carrier activation list, the number of CA carriers, and the second indication information.
  • the first carrier activation list corresponds to the target service
  • the second indication information is used to indicate whether the target service performs CA transmission
  • the target service is all services or specific services.
  • the device provided by the embodiment of the present disclosure can implement each process implemented by the second device in the foregoing method embodiment. To avoid repetition, details are not described herein again.
  • the embodiments of the present disclosure provide a device, which may be a second device. Since the second device can receive first information sent by the first device, the second device can be determined as the first device and the second device according to the first information The target CA parameters configured for the sidelink business between. In this way, in certain scenarios (for example, fast transmission scenarios), the first device and the second device can perform CA data transmission according to the target CA parameters, thereby improving the transmission rate and reception effect of the sidelink service, thereby improving users Business experience.
  • FIG. 8 is a schematic diagram of the hardware structure of a UE provided by the present disclosure.
  • UE 100 includes but is not limited to: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processing The device 110, and the power supply 111 and other components.
  • the UE structure shown in FIG. 8 does not constitute a limitation on the UE, and the UE may include more or less components than shown in the figure, or combine certain components, or arrange different components.
  • the UE includes, but is not limited to, mobile phones, tablet computers, notebook computers, palmtop computers, wearable devices, pedometers, and the like.
  • the first possible implementation manner is that the UE shown in FIG. 8 is the first device in the foregoing embodiment.
  • the radio frequency unit 101 may be used to send first information to the second device, and the first information may be used to indicate the target CA parameter configured for the sidelink service, which is the sidelink service between the first device and the second device .
  • the embodiments of the present disclosure provide a terminal device. Since the terminal device can send first information to the second device, the second device can determine the target configured for the sidelink service between the terminal device and the second device according to the first information. CA parameters. In this way, in some scenarios (such as fast transmission scenarios), the terminal device and the second device can perform CA data transmission according to the target CA parameter, thereby improving the transmission rate and receiving effect of the sidelink service, and thereby improving the user’s Business experience.
  • the second possible implementation manner is that the UE shown in FIG. 8 is the second device in the foregoing embodiment.
  • the radio frequency unit 101 may be used to receive first information sent by the first device, and the first information may be used to indicate the target CA parameter configured for the sidelink service, which is the sidelink between the first device and the second device business.
  • the embodiments of the present disclosure provide a terminal device. Since the first device can send first information to the terminal device, the terminal device can determine the target CA parameter configured for the sidelink service between the first device and the terminal device according to the first information . In this way, in certain scenarios (such as fast transmission scenarios), the first device and the terminal device can perform CA data transmission according to the target CA parameters, thereby improving the transmission rate and receiving effect of the sidelink service, thereby improving the user’s Business experience.
  • the radio frequency unit 101 can be used for receiving and sending signals in the process of sending and receiving information or talking. Specifically, the downlink data from the base station is received and processed by the processor 110; in addition, Uplink data is sent to the base station.
  • the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 101 can also communicate with the network and other devices through a wireless communication system.
  • the UE 100 provides users with wireless broadband Internet access through the network module 102, such as helping users to send and receive emails, browse web pages, and access streaming media.
  • the audio output unit 103 can convert the audio data received by the radio frequency unit 101 or the network module 102 or stored in the memory 109 into audio signals and output them as sounds. Moreover, the audio output unit 103 may also provide audio output related to a specific function performed by the UE 100 (for example, call signal reception sound, message reception sound, etc.).
  • the audio output unit 103 includes a speaker, a buzzer, a receiver, and the like.
  • the input unit 104 is used to receive audio or video signals.
  • the input unit 104 may include a graphics processing unit (GPU) 1041 and a microphone 1042.
  • the graphics processing unit 1041 is used to capture still pictures or video images obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. Data is processed.
  • the processed image frame can be displayed on the display unit 106.
  • the image frame processed by the graphics processor 1041 may be stored in the memory 109 (or other storage medium) or sent via the radio frequency unit 101 or the network module 102.
  • the microphone 1042 can receive sound, and can process such sound into audio data.
  • the processed audio data can be converted into a format that can be sent to a mobile communication base station via the radio frequency unit 101 for output in the case of a telephone call mode.
  • the UE 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor.
  • the ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of the ambient light.
  • the proximity sensor can turn off the display panel 1061 and/or when the UE 100 moves to the ear. Or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of the mobile terminal (such as horizontal and vertical screen switching, related games , Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc.; sensor 105 can also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, Infrared sensors, etc., will not be repeated here.
  • the display unit 106 is used to display information input by the user or information provided to the user.
  • the display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.
  • LCD liquid crystal display
  • OLED organic light-emitting diode
  • the user input unit 107 may be used to receive inputted numeric or character information, and generate key signal input related to user settings and function control of the UE 100.
  • the user input unit 107 includes a touch panel 1071 and other input devices 1072.
  • the touch panel 1071 also called a touch screen, can collect user touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 1071 or near the touch panel 1071. operating).
  • the touch panel 1071 may include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 110, the command sent by the processor 110 is received and executed.
  • the touch panel 1071 can be realized by multiple types such as resistive, capacitive, infrared, and surface acoustic wave.
  • the user input unit 107 may also include other input devices 1072.
  • other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.
  • the touch panel 1071 can be overlaid on the display panel 1061.
  • the touch panel 1071 detects a touch operation on or near it, it is transmitted to the processor 110 to determine the type of the touch event.
  • the type of event provides corresponding visual output on the display panel 1061.
  • the touch panel 1071 and the display panel 1061 are used as two independent components to implement the input and output functions of the UE, in some embodiments, the touch panel 1071 and the display panel 1061 can be integrated. Realize the input and output functions of the UE, which are not specifically limited here.
  • the interface unit 108 is an interface for connecting an external device with the UE 100.
  • the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) port, video I/O port, headphone port, etc.
  • the interface unit 108 can be used to receive input (such as data information, power, etc.) from an external device and transmit the received input to one or more elements in the UE 100 or can be used to transmit between the UE 100 and the external device data.
  • the memory 109 can be used to store software programs and various data.
  • the memory 109 may mainly include a program storage area and a data storage area.
  • the program storage area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data (such as audio data, phone book, etc.) created by the use of mobile phones.
  • the memory 109 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the processor 110 is the control center of the UE. It uses various interfaces and lines to connect various parts of the entire UE. It executes by running or executing software programs and/or modules stored in the memory 109, and calling data stored in the memory 109. Various functions of the UE and processing data, so as to monitor the UE as a whole.
  • the processor 110 may include one or more processing units; optionally, the processor 110 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface, and application programs, etc.
  • the adjustment processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 110.
  • the UE 100 may also include a power source 111 (such as a battery) for supplying power to various components.
  • a power source 111 such as a battery
  • the power source 111 may be logically connected to the processor 110 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system And other functions.
  • the UE 100 includes some functional modules not shown, which will not be repeated here.
  • an embodiment of the present disclosure further provides a UE, including a processor 110 as shown in FIG. 8, a memory 109, a computer program stored in the memory 109 and capable of running on the processor 110, and the computer program is processed
  • a UE including a processor 110 as shown in FIG. 8, a memory 109, a computer program stored in the memory 109 and capable of running on the processor 110, and the computer program is processed
  • the device 110 is executed, each process of the above method embodiment is realized, and the same technical effect can be achieved. In order to avoid repetition, details are not repeated here.
  • the embodiments of the present disclosure also provide a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by the processor 110 as shown in FIG. 8, each process of the foregoing method embodiment is implemented, And can achieve the same technical effect, in order to avoid repetition, I will not repeat them here.
  • computer-readable storage media such as read-only memory (read-only memory, ROM for short), random access memory (ram), magnetic disk, or optical disk, etc.
  • the technical solution of the present disclosure essentially or the part that contributes to the related technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk). ) Includes several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present disclosure.
  • a terminal which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.

Abstract

本公开实施例公开了一种CA参数配置方法、设备及系统。该方法可以应用于第一设备,该方法可以包括:向第二设备发送第一信息,该第一信息用于指示为sidelink业务所配置的目标CA参数,该sidelink业务为第一设备和第二设备之间的sidelink业务。

Description

载波聚合参数配置方法、设备及系统
本申请要求于2019年07月22日提交国家知识产权局、申请号为201910663387.1、申请名称为“载波聚合参数配置方法、设备及系统”的中国专利申请的优先权,其全部内容通过引用包含于此。
技术领域
本公开实施例涉及通信技术领域,尤其涉及一种载波聚合(carrier aggregation,CA)参数配置方法、设备及系统。
背景技术
旁链路(sidelink)技术是指用户设备(user equipment,UE)之间可以无需通过网络设备而直接传输数据的技术。
目前,在长期演进(long term evolution,LTE)的sidelink传输中,为了保证各种能力的接收端UE均可以接收到发送端UE发送的业务,通常会在单个载波上传输单个业务。但是,在新空口(new radio,NR)的sidelink传输中,在某些场景下(例如快速传输场景),单个载波可能无法满足业务的传输速率需求,从而导致某些场景下sidelink传输速率较低。
发明内容
本公开实施例提供一种CA参数配置方法、设备及系统,以解决某些场景下sidelink传输速率较低的问题。
为了解决上述技术问题,本公开实施例是这样实现的:
第一方面,本公开实施例提供了一种CA参数配置方法。该方法可以应用于第一设备。该方法可以包括:向第二设备发送第一信息,该第一信息用于指示为sidelink业务所配置的目标CA参数,该sidelink业务为第一设备和第二设备之间的sidelink业务。
第二方面,本公开实施例提供了一种CA参数配置方法。该方法可以应用于第二设备。该方法可以包括:接收第一设备发送的第一信息,该第一信息用于指示为sidelink业务所配置的目标CA参数,该sidelink业务为第一设备和第二设备之间的sidelink业务。
第三方面,本公开实施例提供了一种设备。该设备可以包括发送模块。发送模块,可以用于向第二设备发送第一信息,该第一信息用于指示为sidelink业务所配置的目标CA参数,该sidelink业务为第一设备和第二设备之间的sidelink业务。
第四方面,本公开实施例提供了一种设备。该设备可以包括接收模块。接收模块,可以用于接收第一设备发送的第一信息,该第一信息用于指示为sidelink业务所配置的目标CA参数,该sidelink业务为第一设备和第二设备之间的sidelink业务。
第五方面,本公开实施例提供了一种设备,包括处理器、存储器及存储在该存储器上并可在该处理器上运行的计算机程序,该计算机程序被该处理器执行时实现上述第一方面提供的CA参数配置方法的步骤。
第六方面,本公开实施例提供了一种设备,包括处理器、存储器及存储在该存储器上并可在该处理器上运行的计算机程序,该计算机程序被该处理器执行时实现上述第二方面提供的CA参数配置方法的步骤。
第七方面,本公开实施例提供了一种通信系统,该通信系统包括上述第三方面中的设备,以及上述第四方面中的设备。或者,该通信系统包括上述第五方面中的设备,以及上述第六方面中的设备。
第八方面,本公开实施例提供了一种计算机可读存储介质,该计算机可读存储介质上存储计算机程序,该计算机程序被处理器执行时实现上述第一方面或者第二方面中的CA参数配置方法的步骤。
在本公开实施例中,第一设备可以向第二设备发送第一信息,该第一信息用于指示为sidelink业务所配置的目标CA参数,该sidelink业务为第一设备和第二设备之间的sidelink业务。通过该方案,由于第一设备可以向第二设备发送第一信息,因此第二设备可以根据第一信息确定为第一设备和第二设备之间的sidelink业务所配置的目标CA参数。如此,在某些场景(例如快速传输场景)下,第一设备和第二设备之间可以根据该目标CA参数进行CA数据传输,从而可以提高sidelink业务的传输速率和接收效果,进而可以提高用户的业务体验。
附图说明
图1为本公开实施例提供的一种通信系统的架构示意图;
图2为本公开实施例提供的一种CA参数配置方法的示意图之一;
图3为本公开实施例提供的一种CA参数配置方法的示意图之二;
图4为本公开实施例提供的一种CA参数配置方法的示意图之三;
图5为本公开实施例提供的一种CA参数配置方法的示意图之四;
图6为本公开实施例提供的设备的结构示意图之一;
图7为本公开实施例提供的设备的结构示意图之二;
图8为本公开实施例提供的UE的硬件示意图。
具体实施方式
下面将结合本公开实施例中的附图,对本公开实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本公开一部分实施例,而不是全部的实施例。基于本公开中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本公开保护的范围。
本文中术语“和/或”,是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。本文中符号“/”表示关联对象是或者的关系,例如A/B表示A或者B。
本公开的说明书和权利要求书中的术语“第一”和“第二”等是用于区别不同的对象,而不是用于描述对象的特定顺序。例如,第一控制信令、第二控制信令和第三控制信令等是用于区别不同的控制信令,而不是用于描述控制信令的特定顺序。
在本公开实施例中,“示例性的”或者“例如”等词用于表示作例子、例证或说明。本公开实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更具优势。确切而言,使用“示例性的”或者“例 如”等词旨在以具体方式呈现相关概念。
在本公开实施例的描述中,除非另有说明,“多个”的含义是指两个或者两个以上,例如,多个元件是指两个或者两个以上的元件等。
下面对本公开实施例中涉及的一些术语/名词进行解释说明。
CA技术:是指在高级长期演进(long term evolution-advanced,LTE-A)系统中引入的一项技术。该技术通过将多个成员载波(component carrier,CC)聚合在一起,可以增加传输带宽。接收端设备可以根据自己的多载波接收能力,决定最多可以同时利用几个载波进行传输。
sidelink技术:可以称为旁链路技术、副链路技术、侧链路技术或边链路技术等,是指UE之间可以不通过网络侧设备而直接传输数据的技术。目前,sidelink传输主要包括广播(broadcast)、组播(groupcast)和单播(unicast)几种传输形式。
车辆网(vehicle to everything,V2X)技术:是指车辆与周围的其他车辆以及其他相关设备可以进行通信的技术,其主要包括基本安全类通信、高级驾驶、车辆编队和传感器扩展等各种业务。
基站调度模式(Mode1):是指由网络侧设备控制并为每个UE分配资源的模式。
UE自主模式(Mode2):是指由UE自主选择资源的模式。
本公开实施例提供一种CA参数配置方法、设备及系统,第一设备可以向第二设备发送第一信息,该第一信息用于指示为sidelink业务所配置的目标CA参数,该sidelink业务为第一设备和第二设备之间的sidelink业务。通过该方案,由于第一设备可以向第二设备发送第一信息,因此第二设备可以根据第一信息确定为第一设备和第二设备之间的sidelink业务所配置的目标CA参数。如此,在某些场景(例如快速传输场景)下,第一设备和第二设备之间可以根据该目标CA参数进行CA数据传输,从而可以提高sidelink业务的传输速率和接收效果,进而可以提高用户的业务体验。
本公开实施例提供的CA参数配置方法、设备及系统,可以应用于各种通信系统中,例如NR sidelink和LTE V2X中等。
下面将结合本公开实施例提供的各个附图,通过具体的实施例及其应用场景对本公开实施例提供的CA参数配置方法、设备及系统进行详细地说明。
图1示出了本公开实施例提供的一种通信系统的架构示意图。如图1所示,该通信系统可以包括第一设备01、第二设备02和接入网设备03。其中,第一设备01和接入网设备03之间可以建立无线连接,第一设备01和第二设备02之间可以建立sidelink连接。
本公开实施例中,第一设备和第二设备均可以为UE。
UE是一种向用户提供语音和/或数据连通性的设备,具有有线/无线连接功能的手持式设备,或连接到无线调制解调器的其他处理设备。UE可以经过无线接入网(radio access network,RAN)与一个或多个核心网设备进行通信。UE可以是移动终端,如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机,也可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与RAN交换语言和/或数据,例如,个人通信业务(personal communication service,PCS)电话、无绳电话、会话发起协议(SIP)话机、无线本地环路(wireless local loop,WLL)站、个人数字助理 (personal digital assistant,PDA)等设备。UE也可以称为用户代理(user agent)或者终端设备等。
接入网设备是一种部署在RAN中用于为UE提供无线通信功能的设备。本公开实施例中,接入网设备可以为基站,且基站可以包括各种形式的宏基站、微基站、中继站、接入点等等。在采用不同的无线接入技术的系统中,具备基站功能的设备的名称可能会有所不同。例如,在5G系统中,可以称为5G基站(gNB);在第四代无线通信(4-Generation,4G)系统,如LTE系统中,可以称为演进型基站(evolved NodeB,eNB);在第三代移动通信(3G)系统中,可以称为基站(Node B)。需要说明的是,随着通信技术的演进,“基站”这一名称可能会发生变化。
基于如图1所示的通信系统,本公开实施例提供一种CA参数配置方法。如图2所示,该CA参数配置方法可以包括下述的步骤201和步骤202。
步骤201、第一设备向第二设备发送第一信息,该第一信息用于指示为sidelink业务所配置的目标CA参数。
步骤202、第二设备接收该第一信息。
其中,上述sidelink业务可以为第一设备和第二设备之间的sidelink业务,即sidelink业务可以为第一设备和第二设备之间采用sidelink传输的业务。
本公开实施例中,第一设备可以为发送端UE,第二设备可以为接收端UE。
本公开实施例中,第一设备和第二设备采用的传输方式可以为sidelink传输方式。
可选地,第一设备和第二设备采用的sidelink传输具体可以为单播、组播或广播。具体可以根据实际使用需求确定,本公开实施例不作限定。
可选地,第一设备和第二设备之间的通信接口可以为PC5接口或其他可能的接口等。
可选地,上述目标CA参数可以通过下述的方式一或方式二实现:
方式一、上述目标CA参数可以包括以下至少一项:第一载波配置列表、至少一个第二载波配置列表、与每个业务对应的第一指示信息。
其中,第一载波配置列表对应至少一个业务。每个第二载波配置列表对应一个业务。与一个业务对应的第一指示信息用于指示一个业务是否进行CA传输。
需要说明的是,当第一信息指示的目标CA参数为方式一这种情况时,第一信息可以携带在PC5无线资源控制(radio resource control,RRC)信令中,或者其他可能信息中。关于PC5 RRC信令,具体将在下述的实施例中进行描述,此处不予赘述。
方式二、上述目标CA参数可以包括以下至少一项:第一载波激活列表、CA的载波个数、第二指示信息。
其中,第一载波激活列表对应目标业务。CA的载波个数对应目标业务。第二指示信息可以用于指示目标业务是否进行CA传输。该目标业务可以为全部业务或特定业务。
需要说明的是,本公开实施例中,当第一信息指示的目标CA参数为方式二这种情况时,第一信息可以携带在层二(layer 2,L2)数据包或L2控制信令中,或者其他可能信息中。关于L2数据包和L2控制信令,具体将在下述的实施例中进行描述,此处不予赘述。
可选地,上述全部业务可以是针对一对目的地标识(destination ID)/信源标识(source ID)的全部业务。
示例性的,如果L2数据包或L2控制信令中携带目标域,且该目标域是基于一对destination ID/source ID统一取值,那么一对UE之间的全部业务都是使用该域的取值作为传输所使用的载波个数。
可选地,上述特定业务可以是针对一对destination ID/source ID的全部业务的某一种业务。
示例性的,如果L2数据包或L2控制信令中携带目标域,且该目标域是基于一对destination ID/source ID中的一个逻辑信道标识(logical channel identify,LCID)的取值,那么一对UE之间的某一个业务可以使用该LCID的取值作为传输所使用的载波个数。
本公开实施例提供一种CA参数配置方法,由于第一设备可以向第二设备发送第一信息,因此第二设备可以根据第一信息确定为第一设备和第二设备之间的sidelink业务所配置的目标CA参数。如此,在某些场景(例如快速传输场景)下,第一设备和第二设备之间可以根据该目标CA参数进行CA数据传输,从而可以提高sidelink业务的传输速率和接收效果,进而可以提高用户的业务体验。
可选地,结合图2,如图3所示,上述步骤201具体可以通过下述的步骤201A实现。相应的,上述步骤202具体可以通过下述的步骤202A实现。
步骤201A、第一设备向第二设备发送目标信息,该目标信息包括第一信息。
对于第一信息的描述可以参照上述步骤201和步骤202中的相关描述,此处不再赘述。
步骤202A、第二设备接收该目标信息。
其中,上述目标信息可以为以下任意一项:PC5 RRC信令、L2数据包、L2控制信令。
需要说明的是,本公开实施例中,PC5 RRC信令可以为采用标准规定的格式,使用特殊的标记进行标识的一组特定的信息组织形式。例如,可以使用特殊的逻辑信道ID,如LCID标记PC5 RRC信令。如果接收端UE接收到逻辑信道ID符合标准规定的格式的数据,那么可以确定这是一个PC5 RRC信令,并按照PC5 RRC信令的格式进行解析,从而可以得到其中的含义内容。
可选地,上述PC5 RRC信令可以为下述形式中的任意一种:为单播建立的发送端UE和接收端UE之间的一对一的RRC信令,为组播建立的发送端和每一个接收端UE之间的一对一的RRC信令,为组播建立的发送端和特定个数的接收端UE之间的一对多的RRC信令,为广播建立的发送端和不确定个数的接收端UE之间的一对多的RRC信令。
可选地,L2可以为媒体访问控制(media access control,MAC)层、无线链路控制(radio link control,RLC)层等。
可选地,第一信息具体可以携带在L2 data协议数据单元(protocol data unit,PDU)。
示例性的,第一信息可以携带在MAC data PDU中,或在RLC data PDU中,或在分组数据汇聚协议(packet data convergence protocol,PDCP)data PDU中。需要说明 的是,将第一信息携带在MAC data PDU中的好处是,MAC层是距离传输最近的L2子层(sublayer),且载波信息通常在MAC中携带;将第一信息携带在RLC data PDU中的好处是,可以为每个业务或每个逻辑信道携带不同的CA信息。
可选地,L2控制信令可以为MAC控制单元(control element,CE),或其他可能的L2控制信令。具体可以根据实际使用需求确定,本公开实施例不作具体限定。
下面将通过下述的3个实施例,分别对目标信息为PC5 RRC信令、L2数据包、L2控制信令进行更清楚地示例性说明。
实施例一
目标信息为PC5 RRC信令。
可选地,当目标信息为PC5 RRC信令时,目标CA参数(即第一信息)可以携带在PC5 RRC信令中。目标CA参数具体可以包括以下至少一项:第一载波配置列表、至少一个第二载波配置列表、与每个业务对应的第一指示信息。
为了更清楚地示意目标CA参数中的各项参数,下面提供了(1)-(3)这几个示例:
(1)针对目标CA参数包括第一载波配置列表的这种情况
一种可选的实现方式为,目标CA参数仅包括第一载波配置列表,该方式默认全部业务均可以采用第一载波配置列表配置的载波进行CA传输。
另一种可选的实现方式为,目标CA参数除了包括第一载波配置列表,还可以包括第一指示信息。其中,该第一指示信息可以用于指示全部业务采用第一载波配置列表配置的载波进行CA传输。
示例性的,假设第一载波配置列表配置了5个载波,且第一设备和第二设备之间有两个待传输业务,那么这两个待传输业务均可以使用这5个载波进行CA传输。
(2)针对目标CA参数包括至少一个第二载波配置列表的这种情况
一种可选的实现方式为,目标CA参数仅包括至少一个第二载波配置列表,该方式默认每个业务可以采用与每个业务对应的第二载波配置列表配置的载波进行CA传输。
另一种可选的实现方式为,目标CA参数除了包括至少一个第二载波配置列表,还可以包括至少一个第二指示信息。其中,一个第二载波配置列表对应一个第二指示信息,一个第二指示信息可以用于指示一个业务采用对应的第二载波配置列表配置的载波进行CA传输。
示例性的,假设第一设备和第二设备之间共配置了5个可用载波,且第一设备和第二设备之间有两个待传输业务,那么待传输业务1可以使用载波1和载波2进行CA传输,待传输业务2可以使用载波1至载波5进行CA传输。
(3)针对目标CA参数包括至少一个第二载波配置列表、与每个业务对应的第一指示信息的这种情况
示例性的,假设第一设备和第二设备之间有两个待传输业务,根据与待传输业务1对应的第一指示信息,以及与待传输业务1对应的第二载波配置列表,可以知道待传输业务1允许使用载波1传输;根据与待传输业务2对应的第一指示信息,以及与待传输业务2对应的第二载波配置列表,可以知道待传输业务2允许使用载波1至载 波5传输。
可选地,上述PC5 RRC信令可以为提前预配置或者约定好的。例如,可以在一个公共的载波上传输;或者,在高层指示业务允许传输的列表里,指定一个特定载波,如显式指示默认载波;或者,约定使用频点最低/频点最高的载波进行传输。可以理解,由于在传输PC5 RRC信令时,如果接收端UE存在能力或者接收不确定的情况,例如组播情况,那么通过提前预配置或者约定PC5 RRC信令具体在哪个载波上传输,可以提高接收效果。
可以理解,在第二设备接收到第一设备发送的PC5 RRC信令之后,业务与载波之间的配置已经完成。但是根据业务数据到达的特点,并非在所有的时刻均需要目标CA参数对应的载波中的全部载波同时传输业务。例如,当业务量较小时,可以通过目标CA参数对应的载波中的部分载波传输业务;当业务量较大时,可以通过目标CA参数对应的载波中的全部载波传输业务。因此,本公开实施例还提供了下述的对目标CA参数对应的载波的激活或去激活的方法。
结合图3,如图4所示,在目标信息为PC5 RRC信令的情况下,上述步骤201A具体可以通过下述的步骤201A1实现。并在,在上述步骤201A1之后,本公开实施例提供的CA参数配置方法还可以包括下述的步骤203至步骤205。
步骤201A1、第一设备向第二设备发送目标信息,该目标信息包括第一信息,该目标信息为PC5 RRC信令。
步骤203、第一设备向第二设备发送第一控制信令,该第一控制信令用于指示目标载波中每个载波的处理方式。
步骤204、第二设备接收该第一控制信令。
步骤205、第二设备根据该第一控制信令,对每个载波激活或去激活。
其中,上述处理方式可以为激活或去激活。上述目标载波可以为目标CA参数对应的载波中的载波。
可选地,上述第一控制信令可以属于L2控制信令,具体可以属于MAC CE。
可选地,上述目标载波可以为目标CA参数对应的载波中的全部载波或部分载波。
可选地,若目标信息中的第一信息还用于指示CA的主载波,则目标载波可以为目标CA参数对应的载波中除主载波外的载波。或者,若目标信息中的第一信息未指示CA的主载波,则目标载波为目标CA参数对应的全部载波。
示例性的,第一设备向第二设备发送的PC5 RRC信令(即目标信息)可以给出一个显示特殊载波的指示,该特殊载波可以为主载波。由于主载波的特点是永远处于激活态,因此目标CA参数对应的载波中除主载波外的载波可以作为辅载波,且辅载波可以被MAC CE(即第一控制信令)激活或去激活。
可选地,对于第一信息还用于指示CA的主载波这种情况下,在第一设备向第二设备发送PC5 RRC信令(即目标信息),并完成业务与载波之间的配置之后,辅载波的初始状态可以为激活状态,可以为非激活状态。
可选地,对于第一信息未指示CA的主载波这种情况下,在根据PC5 RRC信令完成初始配置时,目标CA参数对应的载波中的至少一个载波为激活状态。
可选地,PC5 RRC信令(即目标信息)携带的载波信息具体可以包括以下至少一 项:中心频点、带宽、小区ID、物理层小区ID等。
可选地,第二设备根据第一控制信令,对每个载波激活或去激活,可以包括:根据每个载波在PC5 RRC信令(即目标信息)中的出现顺序,可以将该出现顺序作为依次编号,对与编号对应的载波进行激活或去激活。
示例性的,以第一信息还用于指示CA的主载波,且第一控制信令属于MAC CE为例。假设PC5 RRC信令配置了5个载波,除了主载波外,其他4个辅载波以比特位图(bitmap)的形式分别与MAC CE的4个比特位对应。对于4个比特位的每个位置,若一个位置的取值为1,则指示对该位置对应的载波进行激活;若一个位置的取值为0,则用于指示对该位置对应的载波进行去激活。如此,第二设备可以根据4个比特位的每个位置的取值,对各个位置的载波进行激活或去激活。可以理解,这种载波的编号方式可以简化第一控制信令,并降低开销。
可选地,若第二设备根据第一控制信令,对一个载波进行了激活,则第二设备可以在该一个载波上接收数据,并进行信令反馈,以及进行相应测量等。若第二设备根据第一控制信令,对一个载波进行了去激活,则第二设备可以放弃对该一个载波的监听。
可以理解,在第一设备和第二设备之间的传输方式为单播的情况下,由于第一设备和第二设备是一对一的关系,且PC5 RRC信令和MAC CE信令均是具有反馈的,例如RLC肯定确认(acknowledgement,ACK)、MAC混合自动重传请求(hybrid automatic repeat request,HARQ)ACK。因此第一设备和第二设备可以对载波的配置以及载波的处理方式达成一致。
但是,在第一设备和第二设备之间的传输方式为组播或广播的情况下,由于接收端UE可能会动态变化,即不断有UE退出或者加入。为了使新加入的接收端UE获得载波的配置以及载波的处理方式,第一种可能的实现方式为,第一设备通过单播形式向新加入的接收端UE发送载波的配置,以及第一设备周期性向新加入的接收端UE发送载波的处理方式;第二种可能的实现方式为,第一设备周期性向新加入的接收端UE发送载波的配置以及载波的处理方式。
下面以第二设备为新加入的接收端UE为例,对上述第二种可能的实现方式进行示例性说明。可选地,上述步骤201A1具体可以通过下述的步骤201A11实现,并且,上述步骤203具体可以通过下述的步骤203A实现。
步骤201A11、第一设备周期性向第二设备发送目标信息。其中,该目标信息包括第一信息,该目标信息为PC5 RRC信令。
步骤203A、第一设备周期性向第二设备发送第一控制信令。其中,该第一控制信令用于指示目标载波中每个载波的处理方式。
对于目标信息、第一信息、第一控制信令的描述可以参照上述实施例中的相关描述,此处不再赘述。
可选地,第一设备可以按照第一周期,周期性向第二设备发送目标信息;第一设备可以按照第二周期,周期性向第二设备发送目标信息。其中,第一周期的周期长度和第二周期的周期长度可以相同,也可以不同,具体可以根据实际使用需求确定。
可选地,在新加入的接收端UE没有获取到第一设备周期性发送的目标信息和第 一控制信令之前,新加入的接收端UE可以进行多载波盲检,以获得业务数据。
本公开实施例提供的CA参数配置方法,由于接收端UE可以动态变化,因此第一设备通过周期性向新加入的接收端UE发送目标信息和第一控制信令,可以使新加入的接收端UE获得载波的配置以及载波的处理方式,并根据自己的多载波接收能力更好的进行数据的接收。
实施例二
目标信息为L2数据包。
需要说明的是,上述实施例一中提供的PC5 RRC信令比较适合单播,这是因为单播对于发送端UE和接收端UE是一对一的映射方式,该映射方式可以很好的维护发送端UE和接收端UE之间的状态同步。然而,对于广播和组播来说,由于接收端UE可能会动态变化,例如,接收端UE可能会动态加入或者退出数据接收,因此PC5 RRC信令并不能很好的保证中间加入的接收端UE可以及时获得载波的配置以及载波的处理方式。为此,本公开实施例可以采用L2数据包携带第一信息,从而便于中间加入的接收端UE可以及时获得载波的配置以及载波的处理方式。
可选地,第一信息具体可以携带在PC5接口L2数据包的头部。
可选地,当目标信息为L2数据包时,目标CA参数可以为基站或第一设备(即发送端UE)配置的。
可选地,当目标信息为L2数据包时,目标CA参数(即第一信息)可以携带在L2数据包中,或者,可以通过L2数据包中的第一信息指示目标CA参数。
可选地,当目标信息为L2数据包时,第一信息可以占用NR V2X引入的R16版本中的预留R bit,或者可以增加比特位或增加字节。例如,R17版本引入CA传输,可以直接使用R16版本中的预留R bit。
可选地,当目标信息为L2数据包时,目标CA参数具体可以包括以下至少一项:第一载波激活列表、CA的载波个数、第二指示信息。
为了更清楚地示意目标CA参数中的各项参数,下面提供了(1)-(3)这几个示例:
(1)针对目标CA参数包括第二指示信息的这种情况
可选地,第二指示信息具体可以为L2数据包中的1个比特位的数值,该1个比特位的数值可以用于指示目标业务是否进行CA传输。
可选地,当1个比特位的数值为1时,代表目标业务开启CA传输;当1个比特位的数值为0时,代表目标业务进行单载波传输。或者,当1个比特位的数值为1时,代表目标业务进行单载波传输;当1个比特位的数值为0时,代表目标业务开启CA传输。
示例性的,在RLC data PDU(或PDCP data PDU)的头部,可以使用1个比特位指示目标业务是否进行CA传输。例如,当1个比特位的数值为1时,代表RLC或PDCP实体代表的业务或逻辑信道开启CA传输;当1个比特位的数值为0时,代表进行单载波传输。
示例性的,在MAC data PDU的头部,基于一对destination ID/source ID,可以使用1个比特位指示目标业务是否进行CA传输。例如,当1个比特位的数值为1时, 代表一对destination ID/source ID之间的所有业务均开启CA传输;当1个比特位的数值为0时,代表进行单载波传输。
示例性的,在MAC data PDU的头部,基于一对destination ID/source ID,针对每个LCID,均可以使用1个比特位指示目标业务是否进行CA传输。例如,当1个比特位的数值为1时,代表一对destination ID/source ID之间的一个逻辑信道开启CA传输;当1个比特位的数值为0时,代表进行单载波传输。
可选地,当第二指示信息指示目标业务进行CA传输时,需要满足频点配置信息。具体地,当第一设备发起一种业务时,V2X更高层(higher layer)会告知第一设备该业务的属性信息,例如该业务的QoS需求、流信息和允许传输的频点信息等。如果该业务的允许传输的频点信息包含多个频点,并且允许多个频点同时发送,那么第一设备允许在发送业务时进行CA传输。
可选地,当第一设备发起一种业务时,第一设备采取的资源分配方式可以是Mode1或Mode2。
第一种可选的实现方式为:
若第一设备采取的资源分配方式是Mode1,则由网络侧设备控制该业务是否进行CA传输。
示例性的,当网络侧设备显式或隐式指示激活CA传输时,第一设备可以在PC5接口L2 Data PDU头部携带1;当网络侧设备显式或隐式指示单载波传输时,第一设备可以在PC5接口L2 Data PDU头部携带0。
第二种可选的实现方式为:
若第一设备采取的资源分配方式是Mode2,则由第一设备自行控制该业务是否进行CA传输。
示例性的,当业务量增加(如超过某个门限),或者业务传输时延增大(如超过某个门限),或者单载波不再满足业务传输需求(判断门限是配置/预配置的或者标准规定的)时,第一设备可以启动CA传输该业务,并在PC5接口L2 Data PDU头部携带1;否则,第一设备可以在PC5接口L2 Data PDU头部携带0。
可选地,第一设备与第二设备之间的传输由CA传输转换为单载波传输的条件,可以是网络配置的、网络预配置的或者标准规定的。当第一设备判断满足由CA传输转换成单载波传输的条件时,第一设备可以在PC5接口L2 Data PDU头部携带指示单载波传输的信息。
需要说明的是,第一设备在L2数据包中携带1/0,是一个相对半静态的指示,即每种状态代表持续一段时间,而并不代表当前数据包的传输。即当前传输时间间隔(transmission time interval,TTI)并不一定是多个载波在同时传输,这取决于实际获得资源的情况,但是当前这一段时间,第一设备会尽量尝试进行多载波同时传输,以获得较大的吞吐量。
(2)针对目标CA参数包括CA的载波个数的这种情况
可选地,CA的载波个数具体可以通过L2数据包中的目标域的数值进行指示。
可选地,目标CA参数可以仅包括CA的载波个数;或者,目标CA参数可以包括CA的载波个数和第二指示信息。
示例性的,对于目标CA参数仅包括CA的载波个数这种方式,每个数据包都可以携带目标域。如果目标域是基于一对destination ID/source ID统一取值,那么一对UE之间的所有业务均可以使用目标域的数值作为CA的载波个数;如果目标域是基于一对destination ID/Source ID中的一个LCID取值,那么一对UE之间的一个业务可以使用目标域的数值作为CA的载波个数。另外,CA的载波个数的取值范围受UE最大能力限制,例如,如果标准认为最大8个载波聚合能够满足要求,那么CA的载波个数域可以为3bit二进制头域,000-111的取值分别代表使用1-8个载波进行聚合传输。
示例性的,对于目标CA参数包括CA的载波个数和第二指示信息这种方式。当第二指示信息指示单载波传输时,一个比特位取值为0,此时无需限定CA的载波个数。当第二指示信息指示CA传输时,一个比特位取值为1,此时需要限定CA的载波个数。例如,CA的载波个数域可以为2bit二进制头域,00-11的取值分别代表使用1-4个载波进行聚合传输。再例如,2bit二进制头域可以有新的含义,00-11的取值可以分别代表使用2-5个载波进行聚合传输。
需要说明的是,对于目标CA参数包括CA的载波个数和第二指示信息这种方式,目标域的作用范围可以是基于一对UE的全部业务,或者,针对特定的一个业务(即每个业务的CA参数可以不同)。
可选地,当第一设备进行CA传输时,需要满足频点配置信息。具体地,当第一设备发起一种业务时,V2X higher layer会告知第一设备该业务的属性信息,例如该业务的QoS需求、流信息和允许传输的频点信息等。如果该业务的允许传输的频点信息包含多个频点,并且允许多个频点同时发送,那么第一设备允许在发送业务时进行CA传输,并在L2数据包中携带用于指示CA的载波个数的第一信息。
可选地,当第一设备发起一种业务时,第一设备采取的资源分配方式可以是Mode1或Mode2。
第一种可选的实现方式为:
若第一设备采取的资源分配方式是Mode1,则由网络侧设备控制CA的载波个数。
示例性的,当网络侧设备显式或隐式指示激活CA传输时,第一设备可以在PC5接口L2 Data PDU头部携带用于指示CA的载波个数的第一信息;当网络侧设备显式或隐式指示单载波传输时,第一设备可以在PC5接口L2 Data PDU头部不携带信息或携带指示单载波传输的信息。
第二种可选的实现方式为:
若第一设备采取的资源分配方式是Mode2,则由第一设备自行控制CA的载波个数。
示例性的,当业务量增加(如超过某个门限),或者业务传输时延增大(如超过某个门限),或者单载波不再满足业务传输需求(判断门限是配置/预配置的或者标准规定的)时,第一设备可以启动CA传输该业务,并根据预定规则选择CA的载波个数,以及在PC5接口L2 Data PDU头部携带用于指示CA的载波个数的第一信息;否则,第一设备可以在PC5接口L2 Data PDU头部不携带信息或携带指示单载波传输的信息。
可选地,第一设备与第二设备之间的传输由CA传输转换成单载波传输的条件, 可以是网络配置的、预配置的或者标准规定的。当第一设备判断满足由CA传输转换为单载波传输的条件时,第一设备可以在PC5接口L2 Data PDU头部携带指示单载波传输的信息。
需要说明的是,第一设备在L2数据包中携带CA的载波个数,是一个相对半静态的指示,即每种状态代表持续一段时间,而并不代表当前数据包的传输。即当前传输时间间隔(transmission time interval,TTI)并不一定是多个载波在同时传输,这取决于实际获得资源的情况,但是当前这一段时间,第一设备会尽量尝试进行多载波同时传输,以获得较大的吞吐量。
可以理解,与目标CA参数包括第二指示信息相比,当目标CA参数包括第一载波激活列表时,可以进一步细化CA传输时的CA配置参数,但会增加开销。
(3)针对目标CA参数包括第一载波激活列表的这种情况
可选地,第一载波激活列表具体可以通过L2数据包中的目标域的数值进行指示。
可选地,目标CA参数可以仅包括第一载波激活列表,或者,目标CA参数可以包括第一载波激活列表和第二指示信息。
示例性的,对于目标CA参数仅包括第一载波激活列表这种方式,每个数据包都可以携带目标域。如果目标域是基于一对destination ID/source ID统一取值,那么一对UE之间的所有业务均可以使用目标域的数值作为第一载波激活列表;如果目标域是基于一对destination ID/Source ID中的一个LCID取值,那么一对UE之间的一个业务可以使用目标域的数值作为第一载波激活列表。
示例性的,对于目标CA参数包括第一载波激活列表和第二指示信息这种方式。当第二指示信息指示单载波传输时,一个比特位取值为0,此时无需限定第一载波激活列表;而当第二指示信息指示CA传输时,一个比特位取值为1,此时需要限定第一载波激活列表。
需要说明的是,对于目标CA参数包括第一载波激活列表和第二指示信息这种方式,目标域的作用范围可以是基于一对UE的全部业务,或者,针对特定的一个业务(即每个业务的CA参数可以不同)。
可选地,由于在L2数据包中携带载波的具体信息列表开销较大,因此可以考虑在小区系统信息块(system information block,SIB)中广播用于V2X CA传输的信息列表(例如频点,带宽,小区ID等),并通过在L2数据包中指示按照SIB中的载波顺序,某个载波是否用于CA传输,例如SIB中广播了8个载波的具体信息,按照信令中出现顺序载波1-8,那么在L2数据包中可以使用一个字节的头域作为第一载波激活列表的指示(即第一信息),该字节的0-7bit按照顺序分别与SIB中的载波1-8对应。当字节的一个比特位的数值为1时,代表与该一个比特位对应的载波参与传输;当字节的一个比特位的数值为0时,代表与该一个比特位对应的载波未参与传输。
例如,假设如果一个字节的取值为01001000,则说明SIB的载波列表中载波2和载波5参与了传输,其他载波不参与传输。或者,假设如果一个字节的取值为01001000,则说明SIB的载波列表中载波4和载波7参与了传输,其他载波不参与传输。
可选地,当第一设备进行CA传输时,需要满足频点配置信息。具体地,当第一设备发起一种业务时,V2X higher layer会告知第一设备该业务的属性信息,例如该业 务的QoS需求、流信息和允许传输的频点信息等。如果该业务的允许传输的频点信息包含多个频点,并且允许多个频点同时发送,那么第一设备允许在发送业务时进行CA传输,并在L2数据包中携带用于指示第一载波激活列表的第一信息。
可选地,当第一设备发起一种业务时,第一设备采取的资源分配方式可以是Mode1或Mode2。
第一种可选的实现方式为:
若第一设备采取的资源分配方式是Mode1,则由网络侧设备控制载波激活列表。
示例性的,当网络侧设备显式或隐式指示激活CA传输时,第一设备可以在PC5接口L2 Data PDU头部携带用于指示第一载波激活列表的第一信息;当网络侧设备显式或隐式指示单载波传输时,第一设备可以在PC5接口L2 Data PDU头部不携带信息或携带指示单载波传输的信息。
第二种可选的实现方式为:
若第一设备采取的资源分配方式是Mode2,则由第一设备自行控制载波激活列表。
示例性的,当业务量增加(如超过某个门限),或者业务传输时延增大(如超过某个门限),或者单载波不再满足业务传输需求(判断门限是配置/预配置的或者标准规定的)时,第一设备可以启动CA传输该业务,并根据预定规则选择第一载波激活列表,以及在PC5接口L2 Data PDU头部携带用于指示第一载波激活列表的第一信息;否则,第一设备可以在PC5接口L2 Data PDU头部不携带信息或携带指示单载波传输的信息。
可选地,第一设备与第二设备之间的传输由CA传输转换为单载波传输的条件,可以是网络配置的、预配置的或者标准规定的。当第一设备判断满足由CA传输转换成单载波传输的条件时,第一设备可以在PC5接口L2 Data PDU头部携带指示单载波传输的信息。
需要说明的是,第一设备在L2数据包中携带第一载波激活列表,是一个相对半静态的指示,即每种状态代表持续一段时间,而并不代表当前数据包的传输。即当前传输时间间隔(transmission time interval,TTI)并不一定是多个载波在同时传输,这取决于实际获得资源的情况,但是当前这一段时间,第一设备会尽量尝试进行多载波同时传输,以获得较大的吞吐量。
可以理解,与目标CA参数包括第一载波激活列表相比,当目标CA参数包括第一载波激活列表时,可以进一步细化CA传输时的CA配置参数,但会增加开销。
本公开实施例中,为了避免因为数据包乱序导致第二设备对于CA配置理解的模糊期,目标业务是否进行CA传输指示的变化、CA的载波个数指示的变化、载波激活列表指示的变化不能特别频繁。结合图3,如图5所示,在目标信息为L2数据包的情况下,上述步骤201A具体可以通过下述的步骤201A2实现。并在,在上述步骤201A2之后,本公开实施例提供的CA参数配置方法还可以包括下述的步骤206。
步骤201A2、第一设备向第二设备发送目标信息,该目标信息包括第一信息,该目标信息为L2数据包。
步骤206、在第一设备向第二设备发送目标信息后的第一时长内,第一设备禁止向第二设备指示重新配置的CA参数。
可选地,第一时长可以为配置的、预配置的或者标准规定的。
示例性的,在第一设备向第二设备发送包括第一信息的L2数据包之后,若第一信息指示的目标CA参数为第一次配置的,或CA指示信息发生变化,则第一设备可以启动禁止再次变化的定时器。在定时器运行过程中,禁止发生CA指示信息的变化,即第一设备禁止向第二设备指示重新配置的CA参数,例如,第一设备禁止向第二设备指示重新配置的目标业务是否进行CA传输、重新配置的CA的载波个数、重新配置的载波激活列表。当定时器的定时时间超过第一时长时,才允许再次CA指示信息的变化,即第一设备允许向第二设备指示重新配置的CA参数。
本公开实施例提供的CA参数配置方法,由于在第一设备向第二设备发送目标信息后的第一时长内,第一设备禁止向第二设备指示重新配置的CA参数,因此可以避免目标业务是否进行CA传输指示的变化、CA的载波个数指示的变化、载波激活列表指示的频繁变化,从而避免因为数据包乱序导致对于CA配置理解的模糊期,进而可以保障第二设备可以正常接收业务。
可选地,在目标信息为L2数据包的情况下,在上述步骤202A之后,本公开实施例提供的CA参数配置方法还可以包括下述的步骤207。
步骤207、第二设备根据第二设备的能力信息和目标CA参数,接收业务。
其中,第二设备的能力信息可以用于指示第二设备的多载波接收能力。
可选地,上述步骤207具体可以通过下述的(a1)或(b1)实现。
(a1)在目标CA参数指示第一业务在第一载波上传输的情况下,第二设备在第一载波上接收第一业务。其中,第一载波为单个载波。
(b1)在目标CA参数指示第一业务在M个第二载波上传输的情况下,若第二设备的多载波接收能力在目标CA参数指示的能力范围内,则第二设备在该M个第二载波上接收该第一业务;或者,若第二设备的多载波接收能力不在目标CA参数指示的能力范围内,则第二设备放弃在该M个第二载波上接收第二设备第一业务。其中,M为大于1的整数。
示例性的,如果第二设备接收到L2数据包中的第一信息指示单载波传输,则第二设备可以在第一信息指示的第一载波上接收第一业务。
示例性的,如果第二设备接收到L2数据包中的第一信息指示CA传输,且第二设备的多载波接收能力在目标CA参数指示的能力范围内,那么第二设备可以在M个载波上尝试接收第一业务。针对相同的destination ID/source ID和相同的LCID,第二设备可以确定在多个载波上接收到的数据属于同一个业务的数据,并将这些的数据发送到一个RLC/PDCP实体进行处理。
示例性的,如果第二设备接收到L2数据包中的第一信息指示CA传输,但第二设备的多载波接收能力不在目标CA参数指示的能力范围内(例如,第二设备只有单载波接收能力,或从V2X higher layer得到业务允许发送的载波均超出第二设备的多载波接收能力范围),那么第二设备可以放弃在该M个第二载波上接收第二设备第一业务。
可选地,当CA指示信息发生变化后的一段时期内,由于可能存在数据包的乱序情况,因此在CA指示信息发生变化后,第二设备可以多监听多载波一段时长。即,在上述(b)中的“在M个第二载波上接收第一业务”之后,本公开实施例提供的CA 参数配置方法还可以包括下述的(c1)至(e1)。
(c1)第二设备接收第一设备发送的目标指示信息,该目标指示信息用于指示第二业务在第三载波上传输。其中,该第三载波为单个载波。
(d1)在接收到该目标指示信息的第二时长内,第二设备继续在M个第二载波上接收第一业务。
(e1)在该第二时长之后,第二设备停止在该M个第二载波上接收该第一业务,并开始在该第三载波上接收第二业务。
可选地,上述第二时长可以为配置的、预配置的或者标准规定的定时器长度。
需要说明的是,上述(c1)至(e1)是针对由多载波转换为单载波的情况的。当由单载波转换为多载波,第二设备可以立即进行多载波监听,而无需等待。
本公开实施例提供的CA参数配置方法,可以在由多载波转换为单载波时,第二设备可以多监听多载波一段时,从而可以避免数据包的乱序情况导致的业务接收不完整。
实施例三
目标信息为L2控制信令。
需要说明的是,上述实施例二介绍了使用L2数据包携带第一信息的方式,优点是便于中间加入接收的UE在接收到数据包的同时获得第一信息,但是可能存在数据格式兼容性以及开销问题。为此,本公开实施例提供的CA参数配置方法可以采用L2控制信令携带第一信息,从而可以解决数据格式兼容性的问题,并降低开销。
可选地,当目标信息为L2控制信令时,L2控制信令具体可以为MAC CE。
可选地,当目标信息为L2控制信令时,目标CA参数可以为基站或第一设备配置的。
可选地,当目标信息为L2控制信令时,目标CA参数(即第一信息)可以携带在L2控制信令中,或者,可以通过L2控制信令中的第一信息指示目标CA参数。
可选地,当目标信息为L2控制信令时,第一信息可以占用NR V2X引入的R16版本中的预留R bit,或者可以增加比特位或增加字节。例如,R17版本引入CA传输,可以直接使用R16版本中的预留R bit。
可选地,当目标信息为L2控制信令时,目标CA参数具体可以包括以下至少一项:第一载波激活列表、CA的载波个数、第二指示信息。
需要说明的是,对于当目标信息为L2控制信令时,目标CA参数为第一载波激活列表、目标CA参数为CA的载波个数、目标CA参数为第二指示信息的具体描述,可以参照上述实施例二中的相关描述,此处不再赘述。
可选地,当目标信息为L2控制信令时,为了保证新加入的UE可以及时获得最新的CA参数,L2控制信令的发送方式具体可以为:事件触发方式或周期触发方式。
对于事件触发方式:
在上述步骤201A之后,本公开实施例提供的CA参数配置方法还可以包括下述的步骤208。
步骤208、在目标CA参数发生变化的情况下,第一设备立即向第二设备发送第二控制信令,该第二控制信令包括第二信息,该第二信息用于指示重新配置的目标CA 参数。其中,该第二控制信令属于L2控制信令。
示例性的,当目标CA参数发生变化时,第一设备可以立即向第二设备重新发送新的MAC CE;而目标CA参数未发生变化时,第一设备无需发送MAC CE。
可选地,第二信息指示的重新配置的目标CA参数,需要满足网络侧设备发送给第一设备的频点配置信息。具体可以参照上述实施例二中的相关描述,此处不再赘述。
可选地,当第一设备发起一种业务时,第一设备采取的资源分配方式可以是Mode1或Mode2。具体地,若第一设备采取的资源分配方式是Mode1,则由网络侧设备控制该业务的目标CA参数;若第一设备采取的资源分配方式是Mode2,则由第一设备自行控制该业务的目标CA参数。具体可以参照上述实施例二中的相关描述,此处不再赘述。
对于周期触发方式:
在上述步骤201A之后,本公开实施例提供的CA参数配置方法还可以包括下述的步骤209或步骤210。
步骤209、在目标CA参数发生变化的情况下,第一设备立即向第二设备发送第二控制信令,该第二控制信令包括第二信息,该第二信息用于指示重新配置的目标CA参数。其中,该第二控制信令属于L2控制信令。
步骤210、在目标CA参数未发生变化的情况下,第一设备周期性向第二设备发送第三控制信令,该第三控制信令中包括第一信息。其中,该第三控制信令属于L2控制信令。
可选地,在步骤209之后,本公开实施例提供的CA参数配置方法还可以包括步骤211。
步骤211、在目标CA参数未发生变化的情况下,第一设备周期性向第二设备发送第二控制信令。
可选地,第二控制信令、第三控制信令具体可以属于MAC CE。
可选地,周期发送的周期长度、周期起点、周期偏移位置可以是由网络侧设备配置的、预配置的、或标准规定的。
示例性的,在第一设备第一次发送第一信息后,第一设备可以重启周期性定时器。在周期性定时器运行期间,如果目标CA参数未发生变化,在周期性定时器超时之后,第一设备可以再次向第二设备发送第一信息,并在再次发送第一信息之后重启周期性定时器,即第一设备可以周期性向第二设备发送包括第一信息的第三控制信令。
然而,在周期性定时器运行期间,如果目标CA参数发生变化,那么第一设备可以立即向第二设备发送包括第二信息的第二控制信令,并在发送第二控制信令之后,立即重启周期性定时器。然后,在重启的周期性定时器超时之后,如果目标CA参数未发生变化,那么第一设备可以周期性向第二设备发送第二控制信令;而在重启的周期性定时器运行期间,如果目标CA参数再次发生变化,那么第一设备可以立即向第二设备发送包括新的配置信息的控制信令,并且在发送控制信令之后,再次立即重启周期性定时器。
需要说明的是,上述周期触发方式为本公开实施例提供的一种可选的实现方式,其并不形成限定。可以理解,实际实现时,包括CA配置信息的L2控制信令和数据包 可以同时发送,即仅在有数据包发送的时候,L2控制信令与数据包复用;而如果暂时没有数据包发送,则可以延迟L2控制信令的发送。
可选地,当目标信息为L2控制信令时,在上述步骤202A之后,本公开实施例提供的CA参数配置方法还可以包括下述的步骤212。
步骤212、第二设备根据目标信息,确定是否更新第二设备中保存的目标CA参数。
可选地,在MAC CE中可以引入value tag域,并且,value tag域的取值可以用于指示目标CA参数是否重新配置。
具体地,在第一设备向第二设备发送目标信息的情况下,目标信息还可以包括value tag域(即指示域),该目标信息的指示域可以用于指示目标CA参数是否重新配置。
在第一设备向第二设备发送第二控制信令的情况下,第二控制信令还可以包括value tag域(即指示域),该第二控制信令的指示域可以用于指示目标CA参数是否重新配置。
在第一设备向第二设备发送第三控制信令的情况下,第三控制信令还可以包括value tag域(即指示域),该第三控制信令的指示域可以用于指示目标CA参数是否重新配置。
可选地,以目标信息中还包括指示域为例进行说明。上述步骤212具体可以通过下述的步骤212A或步骤212B实现:
步骤212A、在目标信息中的指示域的数值与第一数值相同的情况下,第二设备确定不更新第二设备中保存的目标CA参数。
步骤212B、在目标信息中的指示域的数值与第一数值不同的情况下,第二设备确定更新第二设备中保存的目标CA参数。
其中,第一数值可以为第二设备上一次接收的指示域的数值。
可选地,在第二设备上一次接收到L2控制信令之后,可以在第二设备中存储L2控制信令的指示域的数值。
示例性的,假设value tag域的取值为2bit长度,最先设置的value tag域的取值可以为0,0可以用于代表第一次发送的目标CA参数。之后,若每次周期性重复发送的MAC CE中value tag域的取值仍为0,则第二设备可以确定目标CA参数未重新配置,并确定不更新第二设备中保存的目标CA参数;若再次发送的MAC CE中value tag域的取值为1(即value tag域的取值发生变化),则第二设备可以确定目标CA参数已重新配置,并确定更新第二设备中保存的目标CA参数。
本公开实施例提供的CA参数配置方法,通过在L2控制信令携带的指示域的数值,可以向第二设备指示目标CA参数是否重新配置,从而第二设备可以根据指示域的数值确定是否更新第二设备中保存的目标CA参数。
可选地,在目标信息为L2控制信令的情况下,在上述步骤202A之后,本公开实施例提供的CA参数配置方法还可以包括下述的步骤213。
步骤213、第二设备根据第二设备的能力信息和目标CA参数,接收业务。
其中,第二设备的能力信息可以用于指示第二设备的多载波接收能力。
可选地,上述步骤212具体可以通过下述的(a2)或(b2)实现。
(a2)在目标CA参数指示第一业务在第一载波上传输的情况下,第二设备在第一载波上接收第一业务。其中,第一载波为单个载波。
(b2)在目标CA参数指示第一业务在M个第二载波上传输的情况下,若第二设备的多载波接收能力在目标CA参数指示的能力范围内,则第二设备在该M个第二载波上接收该第一业务;或者,若第二设备的多载波接收能力不在目标CA参数指示的能力范围内,则第二设备放弃在该M个第二载波上接收第二设备第一业务。其中,M为大于1的整数。
示例性的,如果第二设备接收到L2控制信令中的第一信息指示单载波传输,则第二设备可以在第一信息指示的第一载波上接收第一业务。
示例性的,如果第二设备接收到L2控制信令中的第一信息指示CA传输,且第二设备的多载波接收能力在目标CA参数指示的能力范围内,那么第二设备可以在M个载波上尝试接收第一业务。针对相同的destination ID/source ID和相同的LCID,第二设备可以确定在多个载波上接收到的数据属于同一个业务的数据,并将这些的数据发送到一个RLC/PDCP实体进行处理。
示例性的,如果第二设备接收到L2控制信令中的第一信息指示CA传输,但第二设备的多载波接收能力不在目标CA参数指示的能力范围内(例如,第二设备只有单载波接收能力,或从V2X higher layer得到业务允许发送的载波均超出第二设备的多载波接收能力范围),那么第二设备可以放弃在该M个第二载波上接收第二设备第一业务。
可选地,当CA指示信息发生变化后的一段时期内,由于可能存在数据包的乱序情况,因此在CA指示信息发生变化后,第二设备可以多监听多载波一段时长。即,在上述(b)中的“在M个第二载波上接收第一业务”之后,本公开实施例提供的CA参数配置方法还可以包括下述的(c2)至(e2)。
(c2)第二设备接收第一设备发送的目标指示信息,该目标指示信息用于指示第二业务在第三载波上传输。其中,该第三载波为单个载波。
(d2)在接收到该目标指示信息的第二时长内,第二设备继续在M个第二载波上接收第一业务。
(e2)在该第二时长之后,第二设备停止在该M个第二载波上接收该第一业务,并开始在该第三载波上接收第二业务。
可选地,上述第二时长可以为配置的、预配置的或者标准规定的定时器长度。
需要说明的是,上述(c2)至(e2)是针对由多载波转换为单载波的情况的,当由单载波转换为多载波,第二设备可以立即进行多载波监听,而无需等待。
本公开实施例提供的CA参数配置方法,可以在由多载波转换为单载波时,第二设备可以多监听多载波一段时,从而可以避免数据包的乱序情况导致的业务接收不完整。
如图6所示,本公开实施例提供一种设备600。该设备600可以为第一设备。第一设备可以包括发送模块601。其中,发送模块601,可以用于向第二设备发送第一信息,该第一信息可以用于指示为sidelink业务所配置的目标CA参数,该sidelink业务可以为第一设备和第二设备之间的sidelink业务。
可选地,本公开实施例中,发送模块601,具体可以用于向第二设备发送目标信息,该目标信息可以包括第一信息。其中,该目标信息可以为以下任意一项:PC5 RRC信令、L2数据包、L2控制信令。
可选地,本公开实施例中,目标信息为PC5 RRC信令。发送模块601,还可以用于在向第二设备发送目标信息之后,向第二设备发送第一控制信令。其中,该第一控制信令可以用于指示目标载波中每个载波的处理方式,该处理方式可以为激活或去激活,该目标载波为目标CA参数对应的载波中的载波,该第一控制信令属于L2控制信令。
可选地,本公开实施例中,若第一信息还用于指示CA的主载波,则目标载波可以为目标CA参数对应的载波中除主载波外的载波;或者,若第一信息未指示CA的主载波,则目标载波可以为目标CA参数对应的全部载波。
可选地,本公开实施例中,发送模块601,具体可以用于周期性向第二设备发送目标信息,并周期性向第二设备发送第一控制信令。
可选地,本公开实施例中,目标信息为L2数据包。如图6所示,第一设备还可以包括控制模块602。控制模块602,可以用于在发送模块601向第二设备发送目标信息后的第一时长内,禁止向第二设备指示重新配置的CA参数。
可选地,本公开实施例中,目标信息为L2控制信令。发送模块601,还可以用于在向第二设备发送目标信息之后,在目标CA参数发生变化的情况下,立即向第二设备发送第二控制信令;或者,在目标CA参数未发生变化的情况下,周期性向第二设备发送第三控制信令。其中,该第二控制信令可以包括第二信息,该第二信息用于指示重新配置的目标CA参数,该第二控制信令属于L2控制信令;该第三控制信令中可以包括第一信息,该第三控制信令可以属于L2控制信令。
可选地,本公开实施例中,发送模块601,还可以用于在立即向第二设备发送第二控制信令之后,在目标CA参数未发生变化的情况下,周期性向第二设备发送该第二控制信令。
可选地,本公开实施例中,上述第三控制信令还可以包括指示域,该指示域可以用于指示目标CA参数是否重新配置。
可选地,本公开实施例中,上述目标CA参数可以包括以下至少一项:第一载波配置列表、至少一个第二载波配置列表、与每个业务对应的第一指示信息。其中,第一载波配置列表对应至少一个业务,每个第二载波配置列表对应一个业务,与一个业务对应的第一指示信息用于指示一个业务是否进行CA传输。
可选地,本公开实施例中,上述目标CA参数可以包括以下至少一项:第一载波激活列表、CA的载波个数、第二指示信息。其中,第一载波激活列表对应目标业务,第二指示信息用于指示目标业务是否进行CA传输,目标业务为全部业务或特定业务。
本公开实施例提供的设备能够实现上述方法实施例中第一设备实现的各个过程,为避免重复,这里不再赘述。
本公开实施例提供一种设备,该设备可以为第一设备,由于第一设备可以向第二设备发送第一信息,因此使得第二设备可以根据第一信息确定为第一设备和第二设备之间的sidelink业务所配置的目标CA参数。如此,在某些场景(例如快速传输场景) 下,第一设备和第二设备之间可以根据该目标CA参数进行CA数据传输,从而可以提高sidelink业务的传输速率和接收效果,进而可以提高用户的业务体验。
如图7所示,本公开实施例提供一种设备700。该设备700可以为第二设备。第二设备可以包括接收模块701。接收模块701,可以用于接收第一设备发送的第一信息,该第一信息可以用于指示为sidelink业务所配置的目标CA参数,该sidelink业务可以为第一设备和第二设备之间的sidelink业务。
可选地,本公开实施例中,接收模块701,具体可以用于接收第一设备发送的目标信息,该目标信息包括第一信息。其中,该目标信息可以为以下任意一项:PC5 RRC信令、L2数据包、L2控制信令。
可选地,本公开实施例中,目标信息为PC5 RRC信令。如图7所示,本公开实施例提供的第二设备还可以包括控制模块702。接收模块701,还可以用于在接收第一设备发送的目标信息之后,接收第一设备发送的第一控制信令,该第一控制信令可以用于指示目标载波中每个载波的处理方式,该处理方式可以为激活或去激活,该目标载波可以为目标CA参数对应的载波中的载波,该第一控制信令属于L2控制信令。控制模块702,可以用于根据接收模块701接收的该第一控制信令,对该每个载波激活或去激活。
可选地,本公开实施例中,目标信息为L2数据包或L2控制信令。接收模块701,还可以用于在接收第一设备发送的目标信息之后,根据第二设备的能力信息和目标CA参数,接收业务。其中,第二设备的能力信息可以用于指示第二设备的多载波接收能力。
可选地,本公开实施例中,接收模块701,具体可以用于:在目标CA参数指示第一业务在第一载波上传输的情况下,在该第一载波上接收第一业务,该第一载波为单个载波;或者,在目标CA参数指示第一业务在M个第二载波上传输的情况下,若第二设备的多载波接收能力在目标CA参数指示的能力范围内,则在该M个第二载波上接收第一业务;或者,在目标CA参数指示第一业务在M个第二载波上传输的情况下,若第二设备的多载波接收能力不在目标CA参数指示的能力范围内,则放弃在该M个第二载波上接收第一业务。其中,M为大于1的整数。
可选地,本公开实施例中,接收模块701,还可以用于:在M个第二载波上接收第一业务之后,接收第一设备发送的目标指示信息;并在接收到该目标指示信息的第二时长内,继续在该M个第二载波上接收该第一业务;以及在该第二时长之后,停止在该M个第二载波上接收该第一业务,并开始在第三载波上接收第二业务。其中,该目标指示信息可以用于指示该第二业务在该第三载波上传输,该第三载波为单个载波。
可选地,本公开实施例中,目标信息为L2控制信令。如图7所示,本公开实施例提供的第二设备还可以包括确定模块703。确定模块703,可以用于在接收模块701接收第一设备发送的目标信息之后,根据该目标信息,确定是否更新第二设备中保存的目标CA参数。
可选地,本公开实施例中,目标信息中还可以包括指示域,该指示域可以用于指示目标CA参数是否重新配置。确定模块703,具体可以用于在指示域的数值与第一数值相同的情况下,确定不更新第二设备中保存的目标CA参数;或者,在指示域的数 值与第一数值不同的情况下,确定更新第二设备中保存的目标CA参数。其中,第一数值可以为第二设备上一次接收的指示域的数值。
可选地,本公开实施例中,上述目标CA参数可以包括以下至少一项:第一载波配置列表、至少一个第二载波配置列表、与每个业务对应的第一指示信息。其中,第一载波配置列表对应至少一个业务,每个第二载波配置列表对应一个业务,与一个业务对应的第一指示信息用于指示一个业务是否进行CA传输。
可选地,本公开实施例中,上述目标CA参数可以包括以下至少一项:第一载波激活列表、CA的载波个数、第二指示信息。其中,第一载波激活列表对应目标业务,第二指示信息用于指示目标业务是否进行CA传输,目标业务为全部业务或特定业务。
本公开实施例提供的设备能够实现上述方法实施例中第二设备实现的各个过程,为避免重复,这里不再赘述。
本公开实施例提供一种设备,该设备可以为第二设备,由于第二设备可以接收第一设备发送的第一信息,因此第二设备可以根据第一信息确定为第一设备和第二设备之间的sidelink业务所配置的目标CA参数。如此,在某些场景(例如快速传输场景)下,第一设备和第二设备之间可以根据该目标CA参数进行CA数据传输,从而可以提高sidelink业务的传输速率和接收效果,进而可以提高用户的业务体验。
图8为实现本公开提供的一种UE的硬件结构示意图。如图8所示,UE 100包括但不限于:射频单元101、网络模块102、音频输出单元103、输入单元104、传感器105、显示单元106、用户输入单元107、接口单元108、存储器109、处理器110、以及电源111等部件。本领域技术人员可以理解,图8中示出的UE结构并不构成对UE的限定,UE可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置。在本公开实施例中,UE包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、可穿戴设备以及计步器等。
第一种可能的实现方式为,如图8所示的UE为上述实施例中的第一设备。射频单元101,可以用于向第二设备发送第一信息,该第一信息可以用于指示为sidelink业务所配置的目标CA参数,该sidelink业务为第一设备和第二设备之间的sidelink业务。
本公开实施例提供一种终端设备,由于终端设备可以向第二设备发送第一信息,因此使得第二设备可以根据第一信息确定为终端设备和第二设备之间的sidelink业务所配置的目标CA参数。如此,在某些场景(例如快速传输场景)下,终端设备和第二设备之间可以根据该目标CA参数进行CA数据传输,从而可以提高sidelink业务的传输速率和接收效果,进而可以提高用户的业务体验。
第二种可能的实现方式为,如图8所示的UE为上述实施例中的第二设备。射频单元101,可以用于接收第一设备发送的第一信息,该第一信息可以用于指示为sidelink业务所配置的目标CA参数,该sidelink业务为第一设备和第二设备之间的sidelink业务。
本公开实施例提供一种终端设备,由于第一设备可以向终端设备发送第一信息,因此终端设备可以根据第一信息确定为第一设备和终端设备之间的sidelink业务所配置的目标CA参数。如此,在某些场景(例如快速传输场景)下,第一设备和终端设备之间可以根据该目标CA参数进行CA数据传输,从而可以提高sidelink业务的传输 速率和接收效果,进而可以提高用户的业务体验。
应理解的是,本公开实施例中,射频单元101可用于收发信息或通话过程中,信号的接收和发送,具体地,将来自基站的下行数据接收后,给处理器110处理;另外,将上行的数据发送给基站。通常,射频单元101包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外,射频单元101还可以通过无线通信系统与网络和其他设备通信。
UE 100通过网络模块102为用户提供了无线的宽带互联网访问,如帮助用户收发电子邮件、浏览网页和访问流式媒体等。
音频输出单元103可以将射频单元101或网络模块102接收的或者在存储器109中存储的音频数据转换成音频信号并且输出为声音。而且,音频输出单元103还可以提供与UE 100执行的特定功能相关的音频输出(例如,呼叫信号接收声音、消息接收声音等等)。音频输出单元103包括扬声器、蜂鸣器以及受话器等。
输入单元104用于接收音频或视频信号。输入单元104可以包括图形处理器(graphics processing unit,GPU)1041和麦克风1042,图形处理器1041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元106上。经图形处理器1041处理后的图像帧可以存储在存储器109(或其它存储介质)中或者经由射频单元101或网络模块102进行发送。麦克风1042可以接收声音,并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元101发送到移动通信基站的格式输出。
UE 100还包括至少一种传感器105,比如光传感器、运动传感器以及其他传感器。具体地,光传感器包括环境光传感器及接近传感器,其中,环境光传感器可根据环境光线的明暗来调节显示面板1061的亮度,接近传感器可在UE 100移动到耳边时,关闭显示面板1061和/或背光。作为运动传感器的一种,加速计传感器可检测各个方向上(一般为三轴)加速度的大小,静止时可检测出重力的大小及方向,可用于识别移动终端姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等;传感器105还可以包括指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等,在此不再赘述。
显示单元106用于显示由用户输入的信息或提供给用户的信息。显示单元106可包括显示面板1061,可以采用液晶显示器(liquid crystal display,LCD)、有机发光二极管(organic light-emitting diode,OLED)等形式来配置显示面板1061。
用户输入单元107可用于接收输入的数字或字符信息,以及产生与UE 100的用户设置以及功能控制有关的键信号输入。具体地,用户输入单元107包括触控面板1071以及其他输入设备1072。触控面板1071,也称为触摸屏,可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板1071上或在触控面板1071附近的操作)。触控面板1071可包括触摸检测装置和触摸控制器两个部分。其中,触摸检测装置检测用户的触摸方位,并检测触摸操作带来的信号,将信号传送给触摸控制器;触摸控制器从触摸检测装置上接收触摸信息,并将它转换成触点坐标,再送给处理器110,接收处理器110发来的命令并加以执行。此外,可以采 用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板1071。除了触控面板1071,用户输入单元107还可以包括其他输入设备1072。具体地,其他输入设备1072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
进一步的,触控面板1071可覆盖在显示面板1061上,当触控面板1071检测到在其上或附近的触摸操作后,传送给处理器110以确定触摸事件的类型,随后处理器110根据触摸事件的类型在显示面板1061上提供相应的视觉输出。虽然在图8中,触控面板1071与显示面板1061是作为两个独立的部件来实现UE的输入和输出功能,但是在某些实施例中,可以将触控面板1071与显示面板1061集成而实现UE的输入和输出功能,具体此处不做限定。
接口单元108为外部装置与UE 100连接的接口。例如,外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等。接口单元108可以用于接收来自外部装置的输入(例如数据信息、电力等)并将接收到的输入传输到UE 100内的一个或多个元件或者可以用于在UE 100和外部装置之间传输数据。
存储器109可用于存储软件程序以及各种数据。存储器109可主要包括存储程序区和存储数据区,其中,存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等;存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外,存储器109可以包括高速随机存取存储器,还可以包括非易失性存储器,例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
处理器110是UE的控制中心,利用各种接口和线路连接整个UE的各个部分,通过运行或执行存储在存储器109内的软件程序和/或模块,以及调用存储在存储器109内的数据,执行UE的各种功能和处理数据,从而对UE进行整体监控。处理器110可包括一个或多个处理单元;可选地,处理器110可集成应用处理器和调制解调处理器,其中,应用处理器主要处理操作系统、用户界面和应用程序等,调制解调处理器主要处理无线通信。可以理解的是,上述调制解调处理器也可以不集成到处理器110中。
UE 100还可以包括给各个部件供电的电源111(比如电池),可选地,电源111可以通过电源管理系统与处理器110逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。另外,UE 100包括一些未示出的功能模块,在此不再赘述。
可选地,本公开实施例还提供一种UE,包括如图8所示的处理器110,存储器109,存储在存储器109上并可在处理器110上运行的计算机程序,该计算机程序被处理器110执行时实现上述方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本公开实施例还提供一种计算机可读存储介质,该计算机可读存储介质上存储有计算机程序,该计算机程序被如图8所示的处理器110执行时实现上述方法实施例的 各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。其中,计算机可读存储介质,如只读存储器(read-only Memory,简称ROM)、随机存取存储器(random access memory,简称RAM)、磁碟或者光盘等。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本公开的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本公开各个实施例描述的方法。
上面结合附图对本公开的实施例进行了描述,但是本公开并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本公开的启示下,在不脱离本公开宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本公开的保护之内。

Claims (36)

  1. 一种载波聚合参数配置方法,应用于第一设备,所述方法包括:
    向第二设备发送第一信息,所述第一信息用于指示为旁链路业务所配置的目标载波聚合参数,所述旁链路业务为所述第一设备和所述第二设备之间的旁链路业务。
  2. 根据权利要求1所述的方法,其中,所述向第二设备发送第一信息,包括:
    向所述第二设备发送目标信息,所述目标信息包括所述第一信息;
    其中,所述目标信息为以下任意一项:PC5无线资源控制信令、层二数据包、层二控制信令。
  3. 根据权利要求2所述的方法,其中,所述目标信息为PC5无线资源控制信令;
    所述向所述第二设备发送目标信息之后,所述方法还包括:
    向所述第二设备发送第一控制信令,所述第一控制信令用于指示目标载波中每个载波的处理方式,所述处理方式为激活或去激活,所述目标载波为所述目标载波聚合参数对应的载波中的载波,所述第一控制信令属于层二控制信令。
  4. 根据权利要求3所述的方法,其中,若所述第一信息还用于指示载波聚合的主载波,则所述目标载波为所述目标载波聚合参数对应的载波中除所述主载波外的载波;或者,
    若所述第一信息未指示载波聚合的主载波,则所述目标载波为所述目标载波聚合参数对应的全部载波。
  5. 根据权利要求3所述的方法,其中,所述向所述第二设备发送目标信息,包括:
    周期性向所述第二设备发送所述目标信息;
    所述向所述第二设备发送第一控制信令,包括:
    周期性向所述第二设备发送所述第一控制信令。
  6. 根据权利要求2所述的方法,其中,所述目标信息为层二数据包;
    所述方法还包括:
    在向所述第二设备发送所述目标信息后的第一时长内,禁止向所述第二设备指示重新配置的载波聚合参数。
  7. 根据权利要求2所述的方法,其中,所述目标信息为层二控制信令;
    所述向所述第二设备发送目标信息之后,所述方法还包括:
    在所述目标载波聚合参数发生变化的情况下,立即向所述第二设备发送第二控制信令,所述第二控制信令包括第二信息,所述第二信息用于指示重新配置的目标载波聚合参数,所述第二控制信令属于层二控制信令;或者,
    在所述目标载波聚合参数未发生变化的情况下,周期性向所述第二设备发送第三控制信令,所述第三控制信令中包括所述第一信息,所述第三控制信令属于层二控制信令。
  8. 根据权利要求7所述的方法,其中,所述立即向所述第二设备发送第二控制信令之后,所述方法还包括:
    在所述目标载波聚合参数未发生变化的情况下,周期性向所述第二设备发送所述第二控制信令。
  9. 根据权利要求8所述的方法,其中,所述第三控制信令还包括指示域,所述指 示域用于指示所述目标载波聚合参数是否重新配置。
  10. 根据权利要求1至9中任一项所述的方法,其中,所述目标载波聚合参数包括以下至少一项:第一载波配置列表、至少一个第二载波配置列表、与每个业务对应的第一指示信息;
    其中,所述第一载波配置列表对应至少一个业务,每个第二载波配置列表对应一个业务,与一个业务对应的第一指示信息用于指示所述一个业务是否进行载波聚合传输。
  11. 根据权利要求1至9中任一项所述的方法,其中,所述目标载波聚合参数包括以下至少一项:第一载波激活列表、载波聚合的载波个数、第二指示信息;
    其中,所述第一载波激活列表对应目标业务,所述第二指示信息用于指示所述目标业务是否进行载波聚合传输,所述目标业务为全部业务或特定业务。
  12. 一种载波聚合参数配置方法,应用于第二设备,所述方法包括:
    接收第一设备发送的第一信息,所述第一信息用于指示为旁链路业务所配置的目标载波聚合参数,所述旁链路业务为所述第一设备和所述第二设备之间的旁链路业务。
  13. 根据权利要求12所述的方法,其中,所述接收第一设备发送的第一信息,包括:
    接收所述第一设备发送的目标信息,所述目标信息包括所述第一信息;
    其中,所述目标信息为以下任意一项:PC5无线资源控制信令、层二数据包、层二控制信令。
  14. 根据权利要求13所述的方法,其中,所述目标信息为PC5无线资源控制信令;
    所述接收所述第一设备发送的目标信息之后,所述方法还包括:
    接收所述第一设备发送的第一控制信令,所述第一控制信令用于指示目标载波中每个载波的处理方式,所述处理方式为激活或去激活,所述目标载波为所述目标载波聚合参数对应的载波中的载波,所述第一控制信令属于层二控制信令;
    根据所述第一控制信令,对所述每个载波激活或去激活。
  15. 根据权利要求13所述的方法,其中,所述目标信息为层二数据包或层二控制信令;
    所述接收所述第一设备发送的目标信息之后,所述方法还包括:
    根据所述第二设备的能力信息和所述目标载波聚合参数,接收业务;
    其中,所述第二设备的能力信息用于指示所述第二设备的多载波接收能力。
  16. 根据权利要求15所述的方法,其中,所述根据所述第二设备的能力信息和所述目标载波聚合参数,接收业务,包括:
    在所述目标载波聚合参数指示第一业务在第一载波上传输的情况下,在所述第一载波上接收所述第一业务,所述第一载波为单个载波;
    或者,
    在所述目标载波聚合参数指示第一业务在M个第二载波上传输的情况下,若第二设备的多载波接收能力在所述目标载波聚合参数指示的能力范围内,则在所述M个第二载波上接收所述第一业务;或者,若第二设备的多载波接收能力不在所述目标载波 聚合参数指示的能力范围内,则放弃在所述M个第二载波上接收所述第一业务;M为大于1的整数。
  17. 根据权利要求16所述的方法,其中,所述在所述M个第二载波上接收所述第一业务之后,所述方法还包括:
    接收所述第一设备发送的目标指示信息,所述目标指示信息用于指示第二业务在第三载波上传输,所述第三载波为单个载波;
    在接收到所述目标指示信息的第二时长内,继续在所述M个第二载波上接收所述第一业务;
    在所述第二时长之后,停止在所述M个第二载波上接收所述第一业务,并开始在所述第三载波上接收所述第二业务。
  18. 根据权利要求13所述的方法,其中,所述目标信息为层二控制信令;
    所述接收所述第一设备发送的目标信息之后,所述方法还包括:
    根据所述目标信息,确定是否更新所述第二设备中保存的目标载波聚合参数。
  19. 根据权利要求18所述的方法,其中,所述目标信息中还包括指示域,所述指示域用于指示所述目标载波聚合参数是否重新配置;
    所述根据所述目标信息,确定是否更新所述第二设备中保存的目标载波聚合参数,包括:
    在所述指示域的数值与第一数值相同的情况下,确定不更新所述第二设备中保存的目标载波聚合参数;
    或者,
    在所述指示域的数值与第一数值不同的情况下,确定更新所述第二设备中保存的目标载波聚合参数;
    其中,所述第一数值为所述第二设备上一次接收的指示域的数值。
  20. 根据权利要求12至19中任一项所述的方法,其中,所述目标载波聚合参数包括以下至少一项:第一载波配置列表、至少一个第二载波配置列表、与每个业务对应的第一指示信息;
    其中,所述第一载波配置列表对应至少一个业务,每个第二载波配置列表对应一个业务,与一个业务对应的所述第一指示信息用于指示所述一个业务是否进行载波聚合传输。
  21. 根据权利要求12至19中任一项所述的方法,其中,所述目标载波聚合参数包括以下至少一项:第一载波激活列表、载波聚合的载波个数、第二指示信息;
    其中,所述第一载波激活列表对应目标业务,所述第二指示信息用于指示所述目标业务是否进行载波聚合传输,所述目标业务为全部业务或特定业务。
  22. 一种设备,所述设备为第一设备,所述设备包括发送模块;
    所述发送模块,用于向第二设备发送第一信息,所述第一信息用于指示为旁链路业务所配置的目标载波聚合参数,所述旁链路业务为所述第一设备和所述第二设备之间的旁链路业务。
  23. 根据权利要求22所述的设备,其中,所述发送模块,具体用于向所述第二设备发送目标信息,所述目标信息包括所述第一信息;
    其中,所述目标信息为以下任意一项:PC5无线资源控制信令、层二数据包、层二控制信令。
  24. 根据权利要求23所述的设备,其中,所述目标信息为PC5无线资源控制信令;
    所述发送模块,还用于在向所述第二设备发送所述目标信息之后,向所述第二设备发送第一控制信令,所述第一控制信令用于指示目标载波中每个载波的处理方式,所述处理方式为激活或去激活,所述目标载波为所述目标载波聚合参数对应的载波中的载波,所述第一控制信令属于层二控制信令。
  25. 根据权利要求23所述的设备,其中,所述目标信息为层二数据包;所述设备还包括控制模块;
    所述控制模块,用于在所述发送模块向所述第二设备发送所述目标信息后的第一时长内,禁止向所述第二设备指示重新配置的载波聚合参数。
  26. 根据权利要求23所述的设备,其中,所述目标信息为层二控制信令;
    所述发送模块,还用于在向所述第二设备发送所述目标信息之后,在所述目标载波聚合参数发生变化的情况下,立即向所述第二设备发送第二控制信令;或者,在所述目标载波聚合参数未发生变化的情况下,周期性向所述第二设备发送第三控制信令;
    其中,所述第二控制信令包括第二信息,所述第二信息用于指示重新配置的目标载波聚合参数,所述第二控制信令属于层二控制信令;所述第三控制信令中包括所述第一信息,所述第三控制信令属于层二控制信令。
  27. 根据权利要求22至26中任一项所述的设备,其中,
    所述目标载波聚合参数包括以下至少一项:第一载波配置列表、至少一个第二载波配置列表、与每个业务对应的第一指示信息;其中,所述第一载波配置列表对应至少一个业务,每个第二载波配置列表对应一个业务,与一个业务对应的第一指示信息用于指示所述一个业务是否进行载波聚合传输;
    或者,
    所述目标载波聚合参数包括以下至少一项:第一载波激活列表、载波聚合的载波个数、第二指示信息;其中,所述第一载波激活列表对应目标业务,所述第二指示信息用于指示所述目标业务是否进行载波聚合传输,所述目标业务为全部业务或特定业务。
  28. 一种设备,所述设备为第二设备,所述设备包括接收模块;
    所述接收模块,用于接收第一设备发送的第一信息,所述第一信息用于指示为旁链路业务所配置的目标载波聚合参数,所述旁链路业务为所述第一设备和所述第二设备之间的旁链路业务。
  29. 根据权利要求28所述的设备,其中,所述接收模块,具体用于接收所述第一设备发送的目标信息,所述目标信息包括所述第一信息;
    其中,所述目标信息为以下任意一项:PC5无线资源控制信令、层二数据包、层二控制信令。
  30. 根据权利要求29所述的设备,其中,所述目标信息为PC5无线资源控制信令;所述第二设备还包括控制模块;
    所述接收模块,还用于在接收所述第一设备发送的所述目标信息之后,接收所述第一设备发送的第一控制信令,所述第一控制信令用于指示目标载波中每个载波的处理方式,所述处理方式为激活或去激活,所述目标载波为所述目标载波聚合参数对应的载波中的载波,所述第一控制信令属于层二控制信令;
    所述控制模块,用于根据所述接收模块接收的所述第一控制信令,对所述每个载波激活或去激活。
  31. 根据权利要求29所述的设备,其中,所述目标信息为层二数据包或层二控制信令;
    所述接收模块,还用于在接收第一设备发送的所述目标信息之后,根据所述第二设备的能力信息和所述目标载波聚合参数,接收业务;
    其中,所述第二设备的能力信息用于指示所述第二设备的多载波接收能力。
  32. 根据权利要求28至31中任一项所述的设备,其中,
    所述目标载波聚合参数包括以下至少一项:第一载波配置列表、至少一个第二载波配置列表、与每个业务对应的第一指示信息;其中,所述第一载波配置列表对应至少一个业务,每个第二载波配置列表对应一个业务,与一个业务对应的所述第一指示信息用于指示所述一个业务是否进行载波聚合传输;
    或者,
    所述目标载波聚合参数包括以下至少一项:第一载波激活列表、载波聚合的载波个数、第二指示信息;其中,所述第一载波激活列表对应目标业务,所述第二指示信息用于指示所述目标业务是否进行载波聚合传输,所述目标业务为全部业务或特定业务。
  33. 一种设备,包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如权利要求1至11中任一项所述的载波聚合参数配置方法的步骤。
  34. 一种设备,包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如权利要求12至21中任一项所述的载波聚合参数配置方法的步骤。
  35. 一种通信系统,所述通信系统包括如权利要求22至27中任一项所述的设备,以及如权利要求28至32中任一项所述的设备;或者,
    所述通信系统包括如权利要求33所述的设备,以及如权利要求34所述的设备。
  36. 一种计算机可读存储介质,所述计算机可读存储介质上存储计算机程序,所述计算机程序被处理器执行时实现如权利要求1至21中任一项所述的载波聚合参数配置方法的步骤。
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