WO2019024121A1 - 用于侦听的方法和终端设备 - Google Patents

用于侦听的方法和终端设备 Download PDF

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Publication number
WO2019024121A1
WO2019024121A1 PCT/CN2017/096119 CN2017096119W WO2019024121A1 WO 2019024121 A1 WO2019024121 A1 WO 2019024121A1 CN 2017096119 W CN2017096119 W CN 2017096119W WO 2019024121 A1 WO2019024121 A1 WO 2019024121A1
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WIPO (PCT)
Prior art keywords
entity
link
terminal device
link process
rlc
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PCT/CN2017/096119
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English (en)
French (fr)
Inventor
唐海
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Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN201780050431.0A priority Critical patent/CN109618566B/zh
Priority to PCT/CN2017/096119 priority patent/WO2019024121A1/zh
Publication of WO2019024121A1 publication Critical patent/WO2019024121A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/10—Flow control between communication endpoints

Definitions

  • Embodiments of the present invention relate to the field of communications, and more particularly, to a method and terminal device for listening.
  • the vehicle networking system is a sidelink (SL) transmission technology based on Long Term Evaluation Vehicle to Vehicle (LTE D2D). Compared with the traditional LTE system, communication data is received or transmitted through the base station. Different ways, the vehicle networking system adopts the method of direct communication from the terminal to the terminal, and therefore has higher spectral efficiency and lower transmission delay.
  • SL sidelink
  • LTE D2D Long Term Evaluation Vehicle to Vehicle
  • Mode 3 Standardized Vehicles to Everything (V2X) in the 3rd Generation Partnership Project (3GPP) Rel-14, defining two transmission modes: Mode 3 and Mode 4 .
  • transmission resources of the in-vehicle terminal (vehicle terminal 121 and in-vehicle terminal 122) are allocated by the base station 110, and the in-vehicle terminal is on the side line according to the resource allocated by the base station 110.
  • the data is transmitted; the base station 110 may allocate a single transmission resource to the terminal, or may allocate a semi-static transmission resource to the terminal.
  • mode 4 as shown in FIG.
  • the in-vehicle terminal (vehicle terminal 210 and in-vehicle terminal 220) adopts a transmission mode of sensing and reservation. Specifically, the in-vehicle terminal acquires a set of available transmission resources in a resource pool by means of interception, and the terminal randomly selects one resource from the set to transmit data.
  • the terminal device only considers a single carrier scenario, resulting in poor reliability of data transmission and reducing the user experience.
  • a method and a terminal device for listening are provided.
  • the reliability of data transmission can be effectively improved, thereby improving the user experience.
  • a method for listening is provided, which is applied to a terminal device, where a data replication function of a PDCP layer of a packet data convergence protocol of the terminal device is in an active state, and the PDCP layer and at least one radio link control
  • the at least one RLC entity corresponds to at least one physical layer carrier
  • the first carrier of the at least one physical layer carrier includes at least one a first side-link process
  • the first side-link process in the at least one side-link process carries a first entity
  • the at least one RLC entity includes the first entity
  • the method includes:
  • the terminal device switches the RLC entity carried by the first side-link process from the first entity to a second entity, and the at least one RLC entity includes the second entity.
  • the terminal device when the data replication of the PDCP layer is in an active state, the terminal device is mapped to different physical layer carriers by using different RLC entities, which can effectively improve the reliability of data transmission, and can implement the first side line.
  • the switching of the RLC entity carried by the link process can effectively improve the user experience.
  • the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity, including:
  • the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity.
  • the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity, including:
  • the terminal device When the terminal device is in the resource reselection, if the second side-link process in the at least one side-link link does not carry the first entity, the RLC entity carried by the first side-link process is used. Switching from the first entity to the second entity.
  • the first side-link process and the second side-link process can be prevented from carrying different RLC entities at the same time.
  • the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity, including:
  • the terminal device When the terminal device is in the resource reselection, if the side link process other than the first side link process in the at least one side link does not carry the first entity, The RLC entity carried by the first side downlink process is handed over by the first entity to the second entity.
  • each of the at least one side-link process in the process of switching the bearer RLC entity can ensure that the at least one side-link process carries the same RLC at the same time. entity.
  • the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity, including:
  • the terminal device When the terminal device is in resource reselection, if the second side chain in the at least one side link The path process carries the first entity, preventing the first side-link process from carrying the first entity and the second entity; until the second side-link process does not carry the first entity The first side-link process is allowed to carry the second entity.
  • the first side-link process and the second side-link process can be prevented from carrying different RLC entities at the same time.
  • the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity, including:
  • the terminal device When the terminal device is in the resource reselection, if the plurality of side-link processes other than the first side-link process in the at least one side-link link carry the first entity, the The first side-link process carries the first entity and the second entity; until each of the plurality of side-link processes does not carry the first entity, The first side-link process is allowed to carry the second entity.
  • each of the at least one side-link process in the process of switching the bearer RLC entity can ensure that the at least one side-link process carries the same RLC at the same time. entity.
  • a terminal device where a data replication function of a packet data convergence protocol PDCP layer is in an active state, and the PDCP layer corresponds to at least one radio link control protocol RLC entity, the at least one The RLC entity corresponds to at least one physical layer carrier, and the first carrier of the at least one physical layer carrier includes at least one side-link process, and the first side-link process in the at least one side-link process carries a first entity, the at least one RLC entity comprising the first entity;
  • the terminal device includes:
  • a switching unit configured to: switch, by the terminal device, the RLC entity carried by the first side-link process by the first entity to a second entity, where the at least one RLC entity includes the second entity.
  • a terminal device where a data replication function of a packet data convergence protocol PDCP layer is in an active state, and the PDCP layer corresponds to at least one radio link control protocol RLC entity, the at least one The RLC entity corresponds to at least one physical layer carrier, and the first carrier of the at least one physical layer carrier includes at least one side-link process, and the first side-link process in the at least one side-link process carries a first entity, the at least one RLC entity comprising the first entity;
  • the terminal device includes:
  • a processor configured by the terminal device to switch, by the first entity, an RLC entity that is carried by the first side-link process to a second entity, where the at least one RLC entity includes the second entity.
  • a computer readable medium for storing a computer program comprising instructions for performing the method embodiment of the first aspect described above.
  • a fifth aspect provides a computer chip, including: an input interface, an output interface, at least one processor, and a memory, wherein the processor is configured to execute code in the memory, when the code is executed, the processing.
  • a communication system comprising the plurality of said terminal devices.
  • FIG. 1 is a schematic block diagram of a transmission mode of an embodiment of the present invention.
  • FIG. 2 is a schematic block diagram of another transmission mode of an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a method for listening to a resource pool according to an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of a method for data transmission in a carrier aggregation scenario according to an embodiment of the present invention.
  • FIG. 5 is a diagram showing an example of a scenario of a method for listening according to an embodiment of the present invention.
  • FIG. 6 is a schematic block diagram of a terminal device according to an embodiment of the present invention.
  • FIG. 7 is a schematic block diagram of another terminal device according to an embodiment of the present invention.
  • the embodiments of the present invention can be applied to any communication framework of a terminal device to a terminal device.
  • V2V Vehicle to Vehicle
  • V2X Vehicle to Everything
  • D2D Device to Device
  • the system frame of the vehicle-mounted terminal to the vehicle-mounted terminal shown in FIG. 1 or FIG. 2 is only an example of the embodiment of the present invention, and the embodiment of the present invention is not limited thereto.
  • the terminal device in the embodiment of the present invention may be any device or device configured with a physical layer and a media access control layer, and the terminal device may also be referred to as an access terminal.
  • the terminal device may also be referred to as an access terminal.
  • user equipment User Equipment, UE
  • subscriber unit subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user equipment.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless A communication-enabled handheld device, computing device, or other linear processing device connected to a wireless modem, an in-vehicle device, a wearable device, and the like.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • FIG. 3 is a schematic flowchart of a method for a terminal device to listen to a resource pool according to an embodiment of the present invention.
  • each carrier corresponds to at least one sidelink process.
  • one carrier corresponds to two side-link processes.
  • the terminal device needs to perform resource selection, and the terminal selects resources in the [n+T1, n+T2] interval according to the interception result in the past period of time (for example, 1s). .
  • the terminal device may select a resource in the selection window by detecting information about the channel quality corresponding to the resource in the listening window.
  • the channel quality information corresponding to the resource may be a channel quality (eg, received power or reception quality) of a physical side shared channel (PSSCH) corresponding to a physical side control channel (PSCCH).
  • PSSCH physical side shared channel
  • PSCCH physical side control channel
  • the terminal device may further perform information about a channel quality corresponding to each resource in the transmission resource set by performing a Receive Signal Strength Indicator (RSSI) detection on the resource in the transmission resource set.
  • RSSI Receive Signal Strength Indicator
  • T1 and T2 are only an example and the present embodiment should not be limited.
  • the terminal device may adopt a semi-static transmission manner.
  • the terminal device when the terminal device selects a resource for transmission, the terminal device continuously uses the resource to reserve Cresel times, and each time the data is transmitted, Cresel is decremented by 1.
  • Cresel is reduced to 0, the terminal randomly generates one [ A random number between 0,1], and compared with the parameter (probResourceKeep), if it is greater than the parameter, the terminal performs resource reselection. If it is smaller than the parameter, the terminal continues to use the resource and resets Cresel.
  • the terminal device in the embodiment of the present invention carries the information for reserving the next transmission resource in the control information of the current transmission, so that other terminal devices can detect the terminal device by detecting
  • the control information determines whether the resource is reserved and used by the terminal device, so as to reduce resource conflicts.
  • the terminal device in the embodiment of the present invention can reduce the probability of resource reselection and resource conflict by continuously using the resource in multiple transmission periods.
  • the terminal device selects a resource in the selection window, the resource may be directly selected, or a resource of a certain TTI may be selected among multiple TTI resources.
  • the invention is not specifically limited.
  • the terminal device may select at least one resource in the selection window according to channel quality information of each resource. For example, the terminal device may select the resource of the first TTI from the resources of the plurality of TTIs according to the channel quality information corresponding to the TTI resources in the plurality of TTIs in the selection window.
  • the following describes an example in which a terminal device selects a resource of a certain TTI among a plurality of TTI resources.
  • the transmission resource set includes a short transmission time length (short TTI) resource and a long transmission time length (long TTI) resource.
  • the terminal device selects the at least one resource by selecting a type of transmission time length, for example, the terminal device selects a resource of a short TTI or a resource of a long TTI as the at least one resource.
  • the terminal device may first obtain the channel quality information corresponding to the resource of the short TTI and the channel quality information corresponding to the resource of the long TTI; and then, according to the channel quality information corresponding to the resource of the short TTI, and the information of the long TTI Information about the channel quality corresponding to the resource, and selecting a resource of the TTI in the selection window.
  • the information about the channel quality corresponding to the resource of the TTI may be one piece of information (for example, a threshold value); that is, the quality of the resource of the corresponding TTI can be reflected by using the information.
  • the terminal device may select a resource of the TTI by comparing the first threshold with the second threshold.
  • the terminal device may perform resource selection in the physical layer, may also select resources in the media access control layer, and may perform resource selection in both the physical layer and the media access control layer, and the implementation of the present invention is implemented.
  • the example is not specifically limited.
  • the embodiment of the present invention provides a method for transmitting data, which can utilize a Packet Data Convergence Protocol (PDCP). Layer copy data function for data duplication transfer.
  • PDCP Packet Data Convergence Protocol
  • the data transmission method of the embodiment of the invention can effectively improve the reliability of data transmission.
  • a method for transmitting the replicated data in the CA scenario in the embodiment of the present invention is briefly described below with reference to FIG.
  • FIG. 4 is a schematic flowchart of a method for transmitting data of a PDCP layer according to an embodiment of the present invention.
  • data generated by the PDCP layer are respectively transmitted to two different RLC entities (RLC entity a and RLC entity b), and the two different RLC entities are intervened through the same media.
  • a Control (Media Access Control, MAC) layer entity (MAC entity) maps to different physical layer carriers (a first carrier and a second carrier). It can be understood that, in the embodiment of the present invention, data generated by the PDCP layer (replicated data of PDUs and PDUs) are respectively mapped to different physical layer carriers by two different RLC entities, thereby achieving the purpose of frequency diversity gain, and further Can improve the reliability of data transmission.
  • each sub-layer is sent to a specified layer of the receiving end according to the data of the protocol data unit.
  • the data that is not processed into each sub-layer is called a service data unit (SDU), and the data that is formed into a specific format after being processed by the sub-layer is called a protocol data unit (PDU).
  • SDU service data unit
  • PDU protocol data unit
  • the SDU is an information element transmitted from a higher layer protocol to a lower layer protocol, that is, the original data of the SDU is a PDU of the upper layer of the protocol.
  • the PDU formed by this layer is the SDU of the next layer.
  • each logical channel of each terminal device has one RLC entity (RLC entity), data received by the RLC entity from the PDCP layer, or data sent to the PDCP layer may be referred to as an RLC SDU (or PDCP PDU).
  • RLC SDU or PDCP PDU
  • RLC PDU or MAC SDU
  • the RLC layer is located between the PDCP layer and the MAC layer, and the RLC layer can communicate with the PDCP layer through a Service Access Point (SAP), and communicate with the MAC layer through a logical channel.
  • SAP Service Access Point
  • embodiments of the invention are not limited thereto.
  • the PDUs of the PDCP layer ie, PDCP PDUs
  • the PDCP PDUs are mapped to different physical layer carriers through different RLC entities, which can effectively improve.
  • the reliability of data transmission is mapped to different physical layer carriers through different RLC entities.
  • the terminal device utilizes the copy data function of the PDCP layer to perform data duplication transmission, the reliability of data transmission can be effectively improved.
  • the 3GPP Rel-14 only considers a single carrier scenario, if the terminal device adopts the data transmission method of the embodiment of the present invention, that is, when the data replication function of the PDCP layer of the terminal device is activated, each side link may be performed.
  • Carrying different RLC entities that is, resource scheduling of the terminal device
  • the terminal device needs to consider an RLC entity carried by each carrier of the multiple carriers. More specifically, the terminal device needs to consider the RLC entity carried by each side-link process in the carrier.
  • the terminal device when the terminal device adopts the resource scheduling mode as described in FIG. 2, when the data replication function of the PDCP layer above is activated, the terminal device needs to consider the logical channel identifier (LCID) to the side-link process. Mapping relationship.
  • LCID logical channel identifier
  • the embodiment of the present invention further provides a method for the terminal device to listen to the resource pool when the data replication function of the PDCP layer of the terminal device is activated.
  • the data replication function of the PDCP layer of the terminal device is in an active state
  • the PDCP layer is corresponding to at least one radio link control protocol (RLC) entity
  • the at least one RLC entity corresponding to the at least one physical layer carrier
  • the at least one physical layer
  • the first carrier in the carrier includes at least one side-link process, the first side-link process in the at least one side-link process carries the first entity, and the at least one RLC entity includes the first entity;
  • the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity, and the at least one RLC entity includes the second entity.
  • the terminal device may switch the RLC entity carried by the first side-link process from the first entity to the first entity. Two entities.
  • the terminal device directly switches the RLC entity carried by the first side-link process from the first entity to the second entity directly.
  • the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity.
  • FIG. 5 is an exemplary block diagram of a scenario of a method for listening according to an embodiment of the present invention.
  • the method for listening in the embodiment of the present invention is described below by taking the scenario shown in FIG. 5 as an example.
  • the first side-link process of the terminal device and the second side-link process of the at least one side-link process are used for the bearer first entity, If the terminal device currently wishes to switch the RLC entity carried by the first side-link process and/or the second side-link process from the first entity to the second entity.
  • the terminal device currently wishes to switch the RLC entity carried by the first side-link process and/or the second side-link process from the first entity to the second entity.
  • the terminal device needs to perform handover. deal with.
  • the terminal device After the terminal device receives a user-triggered request to switch the RLC entity carried by the first side-link process from the first entity to the second entity (for example, by a user operation); the terminal device responds to the first
  • the RLC entity carried by the one-way line process is switched by the first entity to the request of the second entity, and the RLC entity carried by the first side-link process is switched from the first entity to the second entity.
  • the terminal device may directly switch the RLC entity carried by the first side-link process from the first entity to the second entity.
  • the terminal device may directly switch the RLC entity carried by the first side-link process from the first entity to the second entity.
  • the terminal device responds to the request that the RLC entity carried by the first side-link process is switched from the first entity to the second entity, the first side-link process is directly The bearer RLC entity is switched from the first entity to the second entity, which is highly likely to increase the frequency of resource reselection and reduce data transmission efficiency.
  • the amount of data that the first side-link process can carry is m
  • the amount of data to be transmitted on the logical channel where the second entity is located is n
  • the terminal device directly
  • the RLC entity carried by the one-way line process is switched from the first entity to the second entity, the first side-link process is insufficient to carry the data to be transmitted, and the terminal device may be restarted. Perform resource re-selection.
  • a method for listening is also provided. Specifically, the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity according to the time when the first side-link process acquires the resource re-selection opportunity.
  • the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity when the resource is reselected.
  • the terminal device determines the first moment before the RLC entity carried by the first side-link process is switched from the first entity to the second entity, where the first moment is that the first side-link process is A time when the resource reselection opportunity is acquired after the request time, where the request time is the time when the terminal device receives the request; then, the terminal device at the first time, the RLC entity carried by the first sidelink process is The first entity switches to the second entity.
  • the first carrier corresponds to at least one side-link process, and the at least one side-link process is independent of each other.
  • the at least one side chain Each side-line process in the path has its own resource reselection timer, Cresel.
  • each of the at least one side-link process can switch the RLC entity carried by each of the time-receiving opportunities.
  • some of the at least one side-link process in the at least one side-link process may be carrying different RLC entities at the same time.
  • a method for intercepting, when a resource reselection opportunity is acquired by each side-link process in multiple side-by-side processes is further provided. Determining when to switch the RLC entity carried by the first side-link process from the first entity to the second entity.
  • the second side-link process in the at least one side-link link carries the first entity
  • the first side-link process and the second side-link process are different.
  • the RLC entity carried by the first side-link process is switched from the first entity to the second entity.
  • the terminal device determines the first moment and the second moment before the RLC entity carried by the first side-link process is switched from the first entity to the second entity, where the first moment is the first sidelink a time when the process acquires a resource reselection opportunity after the request time, where the second time is a time when the second side link process acquires a resource reselection opportunity after the request time, where the request time is that the terminal device receives the request.
  • the terminal device determines the third time according to the first time and the second time; the terminal device switches, by the first entity, the RLC entity carried by the first side-link process by the first entity To the second entity.
  • the terminal device when the terminal device is in resource reselection, if the second side-link process in the at least one side-link link carries the first entity, blocking the first side-link The process carries the first entity and the second entity; the first side-link process is allowed to carry the second entity until the second side-link process does not carry the first entity.
  • the terminal device when the terminal device is in the resource reselection, if the plurality of side-link processes other than the first side-link process in the at least one side-link link carry the first entity, blocking the first The one-side line process carries the first entity and the second entity; the first side line is allowed until each of the plurality of side-link processes does not carry the first entity
  • the link process carries the The second entity.
  • the request moment is a time when the terminal device receives the request
  • the first time is a time when the first sidelink process acquires a resource reselection opportunity after the request time
  • the second time is The second side-link process acquires the time of the resource re-selection opportunity after the request time
  • the terminal device determines the third time
  • the third time is the first side The time at which the downlink process acquires the resource reselection opportunity after the second time
  • the first side downlink bearer prohibits carrying the first entity between the first time and the second time.
  • the terminal device may: after the moment that the first sidelink process acquires the resource reselection opportunity after the second moment, the first side line
  • the RLC entity carried by the link process is switched by the first entity to the second entity, and the first side-link bearer prohibits carrying the first entity between the first moment and the second moment. Therefore, in the process of switching the RLC entity carried by the uplink process, the first side-link process and the second side-link process can be prevented from carrying different RLC entities at the same time.
  • the terminal device may switch the RLC entity carried by the second side-link process from the first entity to the second entity at the second moment.
  • each sidewalk process except the second side link in the at least one side-link process acquires a resource reselection opportunity after the request time Both are before the second moment. Therefore, each of the at least one side-link process in the process of switching the bearer RLC entity can ensure that the at least one side-link process carries the same RLC at the same time. entity.
  • the terminal device when the terminal device is in resource reselection, if the second sidewalk process in the at least one side link does not carry the first entity, the first side chain is The RLC entity carried by the path process is switched by the first entity to the second entity.
  • the terminal device when the terminal device is in the resource reselection, if the side link process other than the first side link process in the at least one side link does not carry the first entity, the first The RLC entity carried by the side-line process is switched by the first entity to the second entity.
  • the request moment is a time when the terminal device receives the request
  • the first time is a time when the first sidelink process acquires a resource reselection opportunity after the request time
  • the second time is The second side downlink process acquires the time of the resource reselection opportunity after the request time; if the second time is before the first time, the terminal device determines the first time as the third time.
  • the terminal device may be at the first At the moment, the RLC entity carried by the first side-link process is switched from the first entity to the second entity.
  • the terminal device determines, at the second time, the time at which the second side-link process acquires the resource re-election opportunity as the fourth time; the terminal device is in the fourth At the moment, the RLC entity carried by the second side-link process is switched from the first entity to the second entity, and the second side-link bearer is prohibited from being carried between the second moment and the first moment.
  • the second entity Therefore, the first side-link process and the second side-link process can avoid the first side-link process and the second side-link process respectively during the process of switching the RLC entity that is carried Hosted with different RLC entities.
  • each of the at least one side-link process except the first side-link link acquires a resource reselection opportunity after the request time Both are before the first moment. Therefore, each of the at least one side-link process in the process of switching the bearer RLC entity can ensure that the at least one side-link process carries the same RLC at the same time. entity.
  • FIG. 6 is a schematic block diagram of a terminal device 300 according to an embodiment of the present invention.
  • the data replication function of the PDCP layer of the packet data convergence protocol of the terminal device is in an active state
  • the PDCP layer is corresponding to at least one radio link control protocol RLC entity
  • the at least one RLC entity corresponds to at least one a physical layer carrier
  • the first carrier of the at least one physical layer carrier includes at least one side-link process
  • the first side-link process in the at least one side-link process carries the first entity
  • the at least An RLC entity includes the first entity
  • the terminal device includes:
  • the switching unit 310 is configured to switch the RLC entity carried by the first side-link process from the first entity to the second entity, where the at least one RLC entity includes the second entity.
  • the switching unit 310 is specifically configured to:
  • the RLC entity carried by the first side-link process is switched from the first entity to the second entity.
  • the switching unit 310 is specifically configured to:
  • the RLC entity carried by the first side-link process is switched from the first entity to the first entity.
  • the second entity if the second side-link process in the at least one side-link link does not carry the first entity, the RLC entity carried by the first side-link process is switched from the first entity to the first entity. The second entity.
  • the switching unit 310 is more specifically configured to:
  • the first side-link process is carried.
  • the RLC entity is switched by the first entity to the second entity.
  • the switching unit 310 is specifically configured to:
  • the first side-link process in the at least one side-link link carries the first entity
  • the first side-link process is prevented from carrying the first entity and the second entity;
  • the first side-link process is allowed to carry the second entity until the second side-link process does not carry the first entity.
  • the switching unit 310 is more specifically configured to:
  • the resource reselection if the plurality of side-link processes in the at least one side-link link carry the first entity, preventing the first side-link process from carrying the first entity and the second entity; The first side-link process is allowed to carry the second entity until each of the plurality of side-link processes does not carry the first entity.
  • the switching unit 310 may be implemented by a processor.
  • the terminal device 400 may include a processor 410, a transceiver 420, and a memory 430.
  • the memory 430 can be used to store indication information, and can also be used to store code, instructions, and the like executed by the processor 410.
  • the various components in the terminal device 400 are connected by a bus system, wherein the bus system includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • the terminal device 400 shown in FIG. 7 can implement various processes implemented by the terminal device in the foregoing method embodiments. To avoid repetition, details are not described herein again.
  • the method embodiment in the embodiment of the present invention may be applied to a processor or implemented by a processor.
  • the processor may be an integrated circuit chip with signal processing capabilities.
  • each step of the foregoing method embodiments may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the above processor may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or the like. Programming logic devices, transistor logic devices, discrete hardware components.
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiment of the present invention may be directly implemented as a hardware decoding processor, or The combination of hardware and software modules in the decoding processor is completed.
  • the software modules can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.
  • the memory may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (ROMM), an erasable programmable read only memory (erasable PROM, EPROM), or an electrical Erase programmable EPROM (EEPROM) or flash memory.
  • the volatile memory can be a random access memory (RAM) that acts as an external cache.
  • RAM random access memory
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • synchronous DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous DRAM
  • DDR SDRAM double data rate synchronous DRAM
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronously connected dynamic random access memory
  • DR RAM direct memory bus random access memory
  • first type of cell group and second type of cell group may be employed in the embodiments of the present invention, but these types of cell groups should not be limited to these terms. These terms are only used to distinguish types of cell groups from one another.
  • the words “at time” as used herein may be interpreted as “if” or “if” or “when” or “response” Determine “or” in response to the test.
  • the phrase “if determined” or “if detected (conditions or events stated)” can be interpreted as “when determined” or “in response to determination” or “when detected (conditions stated or “Event” or “in response to a test (condition or event stated)”.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.
  • each functional unit in the embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the technical solution of the embodiments of the present invention may be embodied in the form of a software product stored in a storage medium.
  • the instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method of the embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory, a random access memory, a magnetic disk, or an optical disk.

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Abstract

提供了一种用于侦听的方法和终端设备。该方法包括应用于终端设备，该终端设备的PDCP层的数据复制功能处于激活状态，该PDCP层与至少一个无线链路控制协议RLC实体对应，这至少一个RLC实体对应至少一个物理层载波，其中，第一载波包括至少一个侧行链路进程，这至少一个侧行链路进程中的第一侧行链路进程承载有第一实体；该方法包括：该终端设备将该第一侧行链路进程承载的RLC实体由该第一实体切换至第二实体，这至少一个RLC实体包括该第二实体。本发明实施例中，终端设备在PDCP层的数据复制功能处于激活状态下，可以实现对第一侧行链路进程承载的RLC实体进行切换，能够有效提高用户体验。

Description

用于侦听的方法和终端设备 技术领域
本发明实施例涉及通信领域，并且更具体地，涉及用于侦听的方法和终端设备。
背景技术
车联网***是基于长期演进车辆到车辆(Long Term Evaluation Vehicle to Vehicle，LTE D2D)的一种侧行链路(Sidelink，SL)传输技术，与传统的LTE***中通信数据通过基站接收或者发送的方式不同，车联网***采用终端到终端直接通信的方式，因此，具有更高的频谱效率以及更低的传输时延。
在第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)Rel-14中对车联网技术车辆到其他设备(Vehicle to Everything，V2X)进行了标准化，定义了两种传输模式：模式3和模式4。具体而言，在模式3中，如图1所示，车载终端(车载终端121和车载终端122)的传输资源是由基站110分配的，车载终端根据基站110分配的资源在侧行链路上进行数据的发送；基站110可以为终端分配单次传输的资源，也可以为终端分配半静态传输的资源。在模式4中，如图2所示，车载终端(车载终端210和车载终端220)采用侦听(sensing)加预留(reservation)的传输方式。具体而言，车载终端在资源池中通过侦听的方式获取可用的传输资源集合，终端从该集合中随机选取一个资源进行数据的传输。
然而，模式4中终端设备只考虑单载波场景，导致数据传输的可靠性较差，降低了用户体验。
发明内容
提供了一种用于侦听的方法和终端设备，通过结合多载波场景，能够有效提高数据传输的可靠性，进而提升用户体验。
第一方面，提供了一种用于侦听的方法，应用于终端设备，所述终端设备的分组数据汇聚协议PDCP层的数据复制功能处于激活状态，所述PDCP层与至少一个无线链路控制协议RLC实体对应，所述至少一个RLC实体对应至少一个物理层载波，所述至少一个物理层载波中的第一载波包括至少一 个侧行链路进程，所述至少一个侧行链路进程中的第一侧行链路进程承载有第一实体，所述至少一个RLC实体包括所述第一实体；
所述方法包括：
所述终端设备将所述第一侧行链路进程承载的RLC实体由所述第一实体切换至第二实体，所述至少一个RLC实体包括所述第二实体。
本发明实施例中，当PDCP层的数据复制处于激活态时，终端设备通过不同的RLC实体映射在不同的物理层载波上，能够有效提高数据传输的可靠性，并且可以实现对第一侧行链路进程承载的RLC实体进行切换，能够有效提高用户体验。
在一些可能的实现方式中，所述终端设备将所述第一侧行链路进程承载的RLC实体由第一实体切换至第二实体，包括：
所述终端设备在资源重选时，将所述第一侧行链路进程承载的RLC实体由所述第一实体切换至所述第二实体。
在一些可能的实现方式中，所述终端设备将所述第一侧行链路进程承载的RLC实体由第一实体切换至第二实体，包括：
所述终端设备在资源重选时，若所述至少一个侧行链路中的第二侧行链路进程没承载所述第一实体，将所述第一侧行链路进程承载的RLC实体由所述第一实体切换至所述第二实体。
由此，在切换行链路进程承载的RLC实体的过程中，能够避免该第一侧行链路进程和该第二侧行链路进程同时分别承载有不同的RLC实体。
在一些可能的实现方式中，所述终端设备将所述第一侧行链路进程承载的RLC实体由第一实体切换至第二实体，包括：
所述终端设备在资源重选时，若所述至少一个侧行链路中除所述第一侧行链路进程之外的侧行链路进程均没承载所述第一实体，将所述第一侧行链路进程承载的RLC实体由所述第一实体切换至所述第二实体。
由此，上述至少一个侧行链路进程中的每个侧行链路进程在切换承载的RLC实体的过程中，能够确保所述至少一个侧行链路进程在同一时刻上，承载有同一RLC实体。
在一些可能的实现方式中，所述终端设备将所述第一侧行链路进程承载的RLC实体由第一实体切换至第二实体，包括：
所述终端设备在资源重选时，若所述至少一个侧行链路中的第二侧行链 路进程承载有所述第一实体，阻止所述第一侧行链路进程承载所述第一实体和所述第二实体；直到所述第二侧行链路进程没承载所述第一实体时，允许所述第一侧行链路进程承载所述第二实体。
由此，在切换行链路进程承载的RLC实体的过程中，能够避免该第一侧行链路进程和该第二侧行链路进程同时分别承载有不同的RLC实体。
在一些可能的实现方式中，所述终端设备将所述第一侧行链路进程承载的RLC实体由第一实体切换至第二实体，包括：
所述终端设备在资源重选时，若所述至少一个侧行链路中除所述第一侧行链路进程之外的多个侧行链路进程承载有所述第一实体，阻止所述第一侧行链路进程承载所述第一实体和所述第二实体；直到所述多个侧行链路进程中的每个侧行链路进程均没承载所述第一实体时，允许所述第一侧行链路进程承载所述第二实体。
由此，上述至少一个侧行链路进程中的每个侧行链路进程在切换承载的RLC实体的过程中，能够确保所述至少一个侧行链路进程在同一时刻上，承载有同一RLC实体。
第二方面，提供了一种终端设备，所述终端设备的分组数据汇聚协议PDCP层的数据复制功能处于激活状态，所述PDCP层与至少一个无线链路控制协议RLC实体对应，所述至少一个RLC实体对应至少一个物理层载波，所述至少一个物理层载波中的第一载波包括至少一个侧行链路进程，所述至少一个侧行链路进程中的第一侧行链路进程承载有第一实体，所述至少一个RLC实体包括所述第一实体；
所述终端设备包括：
切换单元，用于所述终端设备将所述第一侧行链路进程承载的RLC实体由所述第一实体切换至第二实体，所述至少一个RLC实体包括所述第二实体。
第三方面，提供了一种终端设备，所述终端设备的分组数据汇聚协议PDCP层的数据复制功能处于激活状态，所述PDCP层与至少一个无线链路控制协议RLC实体对应，所述至少一个RLC实体对应至少一个物理层载波，所述至少一个物理层载波中的第一载波包括至少一个侧行链路进程，所述至少一个侧行链路进程中的第一侧行链路进程承载有第一实体，所述至少一个RLC实体包括所述第一实体；
所述终端设备包括：
处理器，用于所述终端设备将所述第一侧行链路进程承载的RLC实体由所述第一实体切换至第二实体，所述至少一个RLC实体包括所述第二实体。
第四方面，提供了一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于执行上述第一方面的方法实施例的指令。
第五方面，提供了一种计算机芯片，包括：输入接口、输出接口、至少一个处理器、存储器，所述处理器用于执行所述存储器中的代码，当所述代码被执行时，所述处理器可以实现上述第一方面及各种实现方式中的车联网***中用于侦听的方法中由终端设备执行的各个过程。
第六方面，提供了一种通信***，包括前述多个所述的终端设备。
附图说明
图1是本发明实施例的传输模式的示意性框架图。
图2是本发明实施例的另一传输模式的示意性框架图。
图3是本发明实施例的侦听资源池的方法的示意性流程图。
图4是本发明实施例的载波聚合场景下的数据传输的方法的示意性流程图。
图5是本发明实施例的用于侦听的方法的场景的示例图。
图6是本发明实施例的终端设备的示意性框图。
图7是本发明实施例的另一终端设备的示意性框图。
具体实施方式
下面将结合附图，对本发明实施例中的技术方案进行描述。
本发明实施例可以适用于任何终端设备到终端设备的通信框架。例如，车辆到车辆(Vehicle to Vehicle，V2V)、车辆到其他设备(Vehicle to Everything，V2X)、终端到终端(Device to Device，D2D)等。也就是说，图1或图2所示的车载终端到车载终端的***框架仅仅是本发明实施例的一个示例，本发明实施例不限于此。
其中，本发明实施例中的终端设备可以是任何配置有物理层和媒体接入控制层的设备或装置，终端设备也可称为接入终端。例如，用户设备(User  Equipment，UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字线性处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它线性处理设备、车载设备、可穿戴设备等等。本发明实施例以车载终端为例进行说明，但并不限于此。
图3是本发明实施例的终端设备侦听资源池的方法的示意性流程图。
如图3所示，假设每个载波对应至少一个侧行链路进程(sidelink process)。例如，3GPP rel-14中是一个载波对应两个侧行链路进程。当在时刻n有新的数据包到达，终端设备需要进行资源选取，终端会根据过去一段时间(例如，1s)中的侦听结果，在[n+T1，n+T2]区间内进行资源选取。具体地，终端设备可以通过侦听窗内检测到资源对应的信道质量的信息在选择窗中选取资源。
其中，T1≤4ms；20ms≤T2≤100ms。
此外，资源对应的信道质量信息可以是物理侧行控制信道(Physical Sidelink Control Channel，PSCCH)对应的物理侧行共享信道(Physical Sidelink Shared Channel，PSSCH)的信道质量(例如，接收功率或者接收质量)。终端设备还可以通过对该传输资源集合中的资源进行接收信号强度指示(Receive Signal Strength Indicator，RSSI)检测，获取该传输资源集合中每个资源对应的信道质量的信息。
应注意，该T1和T2的取值范围仅作为一个示例，不应限定本实施例。
由于车联网***中的业务具有周期性特征。因此，本发明实施例中，终端设备可以采用半静态传输的方式。
具体而言，当终端设备选取了一个资源进行传输，则该终端设备会持续使用预留这个资源Cresel次，每传输一次数据，Cresel减1，当Cresel减到0时，终端会随机生成一个[0，1]之间的随机数，并且与参数(probResourceKeep)比较，如果大于该参数，终端进行资源重选，如果小于该参数，终端继续使用该资源，并且重新设置Cresel。
换句话说，本发明实施例的终端设备会在本次传输的控制信息中携带预留下次传输资源的信息，从而使得其他终端设备可以通过检测该终端设备的 控制信息判断这块资源是否被该终端设备预留和使用，达到降低资源冲突的目的。换句话说，本发明实施例的终端设备在选取一个传输资源后，可以通过在多个传输周期中持续的使用该资源，从而降低资源重选以及资源冲突的概率。
还应理解，终端设备在选择窗中选取资源时，可以直接选择资源，也可以在多种TTI的资源中选择某一种TTI的资源。本发明不做具体限定。
例如，该终端设备可以根据每个资源的信道质量信息，在选择窗中选择至少一个资源。又例如，该终端设备也可以在选择窗中，根据该多种TTI中TTI的资源对应的信道质量的信息，从该多种TTI的资源中，选择该第一TTI的资源。下面以终端设备在多种TTI的资源中选择某一种TTI的资源为例进行说明。
具体地，假设该传输资源集合中包括短传输时间长度(short TTI)的资源和长传输时间长度(long TTI)的资源。该终端设备在获取可以通过选择传输时间长度的类型选择上述至少一个资源，例如，该终端设备选择short TTI的资源或者long TTI的资源作为上述至少一个资源。
更具体地，终端设备可以先获取short TTI的资源对应的信道质量的信息，以及long TTI的资源对应的信道质量的信息；然后，根据short TTI的资源对应的信道质量的信息，以及long TTI的资源对应的信道质量的信息，在该选择窗中选择一种TTI的资源。可以理解，本发明实施例中，一种TTI的资源对应的信道质量的信息可以是一个信息(例如，一个门限值)；即，通过这个信息能够体现出对应的TTI的资源的质量。
例如，假设short TTI的资源对应第一阈值，long TTI的资源对应第二阈值，终端设备可以通过比较该第一阈值和该第二阈值，选择一种TTI的资源。
应理解，本发明实施例中，终端设备可以在物理层进行资源选取，也可以在媒体接入控制层进行资源选取，还可以在物理层和媒体接入控制层均进行资源选取，本发明实施例不做具体限定。
基于新空口(New Radio NR)技术，在载波聚合(Carrier Aggregation，CA)场景下，本发明实施例，提出了一种传输数据的方法，可以利用分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)层的复制数据功能，进行数据复制(data duplication)传输。本发明实施例的数据传输的方法能够有效提高数据传输的可靠性。
下面对图4对本发明实施例中CA场景下的复制数据的传输方法进行简单介绍。
图4是本发明实施例的PDCP层的数据的传输方法的示意性流程图。
如图4所示，PDCP层生成的数据(PDU和PDU的复制数据)分别传输到两个不同的RLC实体(RLC实体a和RLC实体b)，这两个不同的RLC实体通过相同的媒体介入控制(Media Access Control，MAC)层实体(MAC实体)映射到不同的物理层载波(第一载波和第二载波)。可以理解，在本发明实施例中，PDCP层所生成的数据(PDU和PDU的复制数据)分别通过两个不同的RLC实体映射到不同的物理层载波上，能够达到频率分集增益的目的，进而能够提高数据传输的可靠性。
具体地，每一子层会根据协议数据单元的数据的不同，发送到接收端的指定层。其中，进入每个子层未被处理的数据称为服务数据单元(service data unit，SDU)，经过子层处理后形成特定格式的数据被称为协议数据单元(Protocol Data Unit，PDU)。也就是说，SDU是从高层协议传送到低层协议的信息单元，即，SDU的原数据是协议上层的PDU。换句话说，本层形成的PDU即为下一层的SDU。
例如，每个终端设备的每个逻辑信道都有一个RLC实体(RLC entity)，RLC实体从PDCP层接收到的数据，或发往PDCP层的数据可以称为RLC SDU(或PDCP PDU)。RLC实体从MAC层接收到的数据，或发往MAC层的数据可以称为RLC PDU(或MAC SDU)。
应理解，本发明实施例中，RLC层位于PDCP层和MAC层之间，RLC层可以通过服务接入点(Service Access Point，SAP)与PDCP层进行通信，并通过逻辑信道与MAC层进行通信。但本发明实施例不限于此。
本发明实施例中，当PDCP层的数据复制处于激活态时，PDCP层的PDU(即PDCP PDU)和PDCP PDU的复制数据会通过不同的RLC实体映射在不同的物理层载波上，能够有效提高数据传输的可靠性。
可以发现，虽然终端设备在利用PDCP层的复制数据功能，进行数据复制(data duplication)传输时，能够有效提高数据传输的可靠性。但是，由于3GPP Rel-14只考虑单载波的场景，如果终端设备采用本发明实施例的数据传输的方法，即终端设备的PDCP层的数据复制功能处于激活时，每个侧行链路进行可以承载不同的RLC实体，也就是说，终端设备的资源调度需 要考虑多载波的场景。具体地，终端设备需要考虑多个载波中每个载波承载的RLC实体。更具体地，终端设备需要考虑载波中每个侧行链路进程承载的RLC实体。
例如，当终端设备采用如图2所述的资源调度模式，在上面的PDCP层的数据复制功能处于激活时，该终端设备需要考虑逻辑信道标识(Logical Channel Identifier，LCID)到侧行链路进程的映射关系。
因此，本发明实施例进一步提出了一种终端设备的PDCP层的数据复制功能处于激活时，终端设备在用于侦听资源池的方法。
可选地，该终端设备的PDCP层的数据复制功能处于激活状态，该PDCP层与至少一个无线链路控制协议RLC实体对应，上述至少一个RLC实体对应至少一个物理层载波，上述至少一个物理层载波中的第一载波包括至少一个侧行链路进程，上述至少一个侧行链路进程中的第一侧行链路进程承载有第一实体，上述至少一个RLC实体包括该第一实体；该终端设备将该第一侧行链路进程承载的RLC实体由该第一实体切换至第二实体，上述至少一个RLC实体包括该第二实体。
具体而言，如果终端设备当前希望切换第一载波上侧行链路进程承载的RLC实体时，终端设备可以将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体。
例如，终端设备直接将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体直接。
又例如，在该第一侧行链路进程满足一定的条件后，终端设备将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体。
图5是本发明实施例的用于侦听的方法的场景的示例性框图。
下面以图5所示的场景为例，对本发明实施例的用于侦听的方法进行介绍。
具体而言，如图5所示，假设终端设备的该第一侧行链路进程和上述至少一个侧行链路进程中的第二侧行链路进程均用于该承载第一实体上，如果该终端设备当前希望将该第一侧行链路进程和/或第二侧行链路进程承载的RLC实体由该第一实体切换至该第二实体上。应该理解，本发明实施例中仅以第一侧行链路进程和第二侧行链路进程为例进行说明。但本发明实施例不局限于此。
可以理解，在本发明实施例的场景下，如果用户当前希望终端设备将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体时，该终端设备需要进行切换处理。
终端设备接收到用户触发的将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体的请求(例如，通过用户操作)后；该终端设备响应于将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体的请求，将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体。
可选地，终端设备可以直接将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体。但是，本发明实施例中，终端设备如果响应于将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体的请求，直接将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体，极有可能增加资源重选的频率，降低数据传输效率。
具体而言，假设第一侧行链路进程能够承载的数据量为m，而第二实体所在的逻辑信道上待传输数据的数据量为n，如果n大于m，在终端设备直接将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体时，可以发现，该第一侧行链路进程不足以承载上述待传输数据，这时，会导致终端设备重新进行资源重选。
为了降低终端设备进行资源重选的频率，进一步地，本发明实施例中，还提供了一种用于侦听的方法。具体地，终端设备根据第一侧行链路进程获取资源重选机会的时刻，将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体。
可选地，该终端设备在资源重选时，将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体。
具体而言，该终端设备将该第一侧行链路进程承载的RLC实体由第一实体切换至第二实体之前，确定第一时刻，该第一时刻为该第一侧行链路进程在请求时刻之后获取资源重选机会的时刻，该请求时刻为该终端设备接收到该请求的时刻；然后，该终端设备在该第一时刻，将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体。
需要注意的是，本发明实施例中，该第一载波对应有至少一个侧行链路进程，这至少一个侧行链路进程相互独立。具体而言，上述至少一个侧行链 路进程中的每个侧行链路进程均有各自的资源重选定时器(reselection timer)，即Cresel。
也就是说，本发明实施例中，上述至少一个侧行链路进程中的每个侧行链路进程在请求时刻之后获取资源重选机会的时刻，均可以切换各自所承载的RLC实体。
由此，可能导致上述至少一个侧行链路进程中的某些侧行链路进程在同一时刻上，承载了不同的RLC实体。
进一步地，为了解决上述问题，本发明实施例中，还提供了一种用于侦听的方法，通过多个侧行链路进程中每个侧行链路进程获取资源重选机会的时刻，确定何时将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体。
可选地，假设上述至少一个侧行链路中的第二侧行链路进程承载有该第一实体，该第一侧行链路进程和该第二侧行链路进程不同。本发明实施例中的终端设备可以根据第一侧行链路进程获取资源重选机会的时刻(第一时刻)以及第二侧行链路进程获取资源重选机会的时刻(第二时刻)，将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体。
例如，该终端设备将该第一侧行链路进程承载的RLC实体由第一实体切换至第二实体之前，确定第一时刻和第二时刻，该第一时刻为该第一侧行链路进程在请求时刻之后获取资源重选机会的时刻，该第二时刻为该第二侧行链路进程在该请求时刻之后获取资源重选机会的时刻，该请求时刻为该终端设备接收到该请求的时刻；该终端设备根据该第一时刻和该第二时刻，确定第三时刻；该终端设备在该第三时刻，将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体。
作为一个实施例，可选地，该终端设备在资源重选时，若上述至少一个侧行链路中的第二侧行链路进程承载有该第一实体，阻止该第一侧行链路进程承载该第一实体和该第二实体；直到该第二侧行链路进程没承载该第一实体时，允许该第一侧行链路进程承载该第二实体。
进一步地，该终端设备在资源重选时，若上述至少一个侧行链路中除该第一侧行链路进程之外的多个侧行链路进程承载有该第一实体，阻止该第一侧行链路进程承载该第一实体和该第二实体；直到该多个侧行链路进程中的每个侧行链路进程均没承载该第一实体时，允许该第一侧行链路进程承载该 第二实体。
具体而言，假设该请求时刻为该终端设备接收到该请求的时刻，该第一时刻为该第一侧行链路进程在请求时刻之后获取资源重选机会的时刻，该第二时刻为该第二侧行链路进程在该请求时刻之后获取资源重选机会的时刻；若该第一时刻在该第二时刻之前，该终端设备确定该第三时刻，该第三时刻为该第一侧行链路进程在该第二时刻之后获取资源重选机会的时刻，且该第一侧行链路承载在该第一时刻和该第二时刻之间禁止承载该第一实体。
更具体地，若该第一时刻在该第二时刻之前，该终端设备可以在该第一侧行链路进程在该第二时刻之后获取资源重选机会的时刻后，将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体，且该第一侧行链路承载在该第一时刻和该第二时刻之间禁止承载该第一实体。由此，在切换行链路进程承载的RLC实体的过程中，能够避免该第一侧行链路进程和该第二侧行链路进程同时分别承载有不同的RLC实体。
此外，针对第二侧行链路进程，该终端设备可以在该第二时刻，将该第二侧行链路进程承载的RLC实体由该第一实体切换至该第二实体。
更进一步地，本发明实施例中，上述至少一个侧行链路进程中除该第二侧行链路之外的每个侧行链路进程，在该请求时刻之后获取资源重选机会的时刻均在该第二时刻之前。由此，上述至少一个侧行链路进程中的每个侧行链路进程在切换承载的RLC实体的过程中，能够确保所述至少一个侧行链路进程在同一时刻上，承载有同一RLC实体。
作为另一个实施例，可选地，该终端设备在资源重选时，若上述至少一个侧行链路中的第二侧行链路进程没承载该第一实体，将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体。
进一步地，该终端设备在资源重选时，若上述至少一个侧行链路中除该第一侧行链路进程之外的侧行链路进程均没承载该第一实体，将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体。
具体而言，假设该请求时刻为该终端设备接收到该请求的时刻，该第一时刻为该第一侧行链路进程在请求时刻之后获取资源重选机会的时刻，该第二时刻为该第二侧行链路进程在该请求时刻之后获取资源重选机会的时刻；若该第二时刻在该第一时刻之前，该终端设备将该第一时刻确定为该第三时刻。具体而言，若该第二时刻在该第一时刻之前，该终端设备可以在该第一 时刻，将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体。
此外，针对第二侧行链路进程，该终端设备将该第二侧行链路进程在该第一时刻之后，获取资源重选机会的时刻确定为第四时刻；该终端设备在该第四时刻，将该第二侧行链路进程承载的RLC实体由该第一实体切换至该第二实体，且该第二侧行链路承载在该第二时刻和该第一时刻之间禁止承载该第二实体。由此，该第一侧行链路进程和该第二侧行链路进程在切换承载的RLC实体的过程中，能够避免该第一侧行链路进程和该第二侧行链路进程分别承载有不同的RLC实体。
更进一步地，本发明实施例中，上述至少一个侧行链路进程中除该第一侧行链路之外的每个侧行链路进程，在该请求时刻之后获取资源重选机会的时刻均在该第一时刻之前。由此，上述至少一个侧行链路进程中的每个侧行链路进程在切换承载的RLC实体的过程中，能够确保所述至少一个侧行链路进程在同一时刻上，承载有同一RLC实体。
图6是本发明实施例的终端设备300的示意性框图。
具体而言，如图6所示，该终端设备的分组数据汇聚协议PDCP层的数据复制功能处于激活状态，该PDCP层与至少一个无线链路控制协议RLC实体对应，上述至少一个RLC实体对应至少一个物理层载波，上述至少一个物理层载波中的第一载波包括至少一个侧行链路进程，上述至少一个侧行链路进程中的第一侧行链路进程承载有第一实体，上述至少一个RLC实体包括该第一实体；
该终端设备包括：
切换单元310，用于将该第一侧行链路进程承载的RLC实体由该第一实体切换至第二实体，上述至少一个RLC实体包括该第二实体。
可选地，该切换单元310具体用于：
在资源重选时，将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体。
可选地，该切换单元310具体用于：
在资源重选时，若上述至少一个侧行链路中的第二侧行链路进程没承载该第一实体，将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体。
可选地，该切换单元310更具体用于：
在资源重选时，若上述至少一个侧行链路中除该第一侧行链路进程之外的侧行链路进程均没承载该第一实体，将该第一侧行链路进程承载的RLC实体由该第一实体切换至该第二实体。
可选地，该切换单元310具体用于：
在资源重选时，若上述至少一个侧行链路中的第二侧行链路进程承载有该第一实体，阻止该第一侧行链路进程承载该第一实体和该第二实体；直到该第二侧行链路进程没承载该第一实体时，允许该第一侧行链路进程承载该第二实体。
可选地，该切换单元310更具体用于：
在资源重选时，若上述至少一个侧行链路中的多个侧行链路进程承载有该第一实体，阻止该第一侧行链路进程承载该第一实体和该第二实体；直到该多个侧行链路进程中的每个侧行链路进程均没承载该第一实体时，允许该第一侧行链路进程承载该第二实体。
应注意，本发明实施例中，切换单元310可以由处理器实现。如图7所示，终端设备400可以包括处理器410、收发器420和存储器430。其中，存储器430可以用于存储指示信息，还可以用于存储处理器410执行的代码、指令等。终端设备400中的各个组件通过总线***相连，其中，总线***除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。
图7所示的终端设备400能够实现前述方法实施例中由终端设备所实现的各个过程，为避免重复，这里不再赘述。
也就是说，本发明实施例中的方法实施例可以应用于处理器中，或者由处理器实现。处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、分立硬件组件。可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本发明实施例公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用 译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域的成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本发明实施例中，存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如，静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synch link DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。应注意，本文描述的***和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
最后，需要注意的是，在本发明实施例和所附权利要求书中使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本发明实施例。
例如，在本发明实施例和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
又例如，在本发明实施例中可能采用术语第一类型小区组和第二类型小区组，但这些类型小区组不应限于这些术语。这些术语仅用来将类型小区组彼此区分开。
又例如，取决于语境，如在此所使用的词语“在......时”可以被解释成为“如果”或“若”或“当......时”或“响应于确定”或“响应于检测”。类似地，取决于语境，短语“如果确定”或“如果检测(陈述的条件或事件)”可以被解释成为“当确定时”或“响应于确定”或“当检测(陈述的条件或 事件)时”或“响应于检测(陈述的条件或事件)”。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明实施例的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的***、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请提供的几个实施例中，应该理解到，所揭露的***、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本发明实施例的目的。
另外，在本发明实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案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中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器、随机存取存储器、磁碟或者光盘等各种可以存储程序代码的介质。
以上内容，仅为本发明实施例的具体实施方式，但本发明实施例的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明实施例揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明实施例的保护范围之内。因此，本发明实施例的保护范围应以权利要求的保护范围为准。

Claims (12)

  1. 一种车联网***中用于侦听的方法，其特征在于，应用于终端设备，所述终端设备的分组数据汇聚协议PDCP层的数据复制功能处于激活状态，所述PDCP层与至少一个无线链路控制协议RLC实体对应，所述至少一个RLC实体对应至少一个物理层载波，所述至少一个物理层载波中的第一载波包括至少一个侧行链路进程，所述至少一个侧行链路进程中的第一侧行链路进程承载有第一实体，所述至少一个RLC实体包括所述第一实体；
    所述方法包括：
    所述终端设备将所述第一侧行链路进程承载的RLC实体由所述第一实体切换至第二实体，所述至少一个RLC实体包括所述第二实体。
  2. 根据权利要求1所述的方法，其特征在于，所述终端设备将所述第一侧行链路进程承载的RLC实体由第一实体切换至第二实体，包括：
    所述终端设备在资源重选时，将所述第一侧行链路进程承载的RLC实体由所述第一实体切换至所述第二实体。
  3. 根据权利要求1或2所述的方法，其特征在于，所述终端设备将所述第一侧行链路进程承载的RLC实体由第一实体切换至第二实体，包括：
    所述终端设备在资源重选时，若所述至少一个侧行链路中的第二侧行链路进程没承载所述第一实体，将所述第一侧行链路进程承载的RLC实体由所述第一实体切换至所述第二实体。
  4. 根据权利要求3所述的方法，其特征在于，所述终端设备将所述第一侧行链路进程承载的RLC实体由第一实体切换至第二实体，包括：
    所述终端设备在资源重选时，若所述至少一个侧行链路中除所述第一侧行链路进程之外的侧行链路进程均没承载所述第一实体，将所述第一侧行链路进程承载的RLC实体由所述第一实体切换至所述第二实体。
  5. 根据权利要求1或2所述的方法，其特征在于，所述终端设备将所述第一侧行链路进程承载的RLC实体由第一实体切换至第二实体，包括：
    所述终端设备在资源重选时，若所述至少一个侧行链路中的第二侧行链路进程承载有所述第一实体，阻止所述第一侧行链路进程承载所述第一实体和所述第二实体；
    直到所述第二侧行链路进程没承载所述第一实体时，允许所述第一侧行 链路进程承载所述第二实体。
  6. 根据权利要求5所述的方法，其特征在于，所述终端设备将所述第一侧行链路进程承载的RLC实体由第一实体切换至第二实体，包括：
    所述终端设备在资源重选时，若所述至少一个侧行链路中除所述第一侧行链路进程之外的多个侧行链路进程承载有所述第一实体，阻止所述第一侧行链路进程承载所述第一实体和所述第二实体；
    直到所述多个侧行链路进程中的每个侧行链路进程均没承载所述第一实体时，允许所述第一侧行链路进程承载所述第二实体。
  7. 一种终端设备，其特征在于，所述终端设备的分组数据汇聚协议PDCP层的数据复制功能处于激活状态，所述PDCP层与至少一个无线链路控制协议RLC实体对应，所述至少一个RLC实体对应至少一个物理层载波，所述至少一个物理层载波中的第一载波包括至少一个侧行链路进程，所述至少一个侧行链路进程中的第一侧行链路进程承载有第一实体，所述至少一个RLC实体包括所述第一实体；
    所述终端设备包括：
    切换单元，用于将所述第一侧行链路进程承载的RLC实体由所述第一实体切换至第二实体，所述至少一个RLC实体包括所述第二实体。
  8. 根据权利要求7所述的终端设备，其特征在于，所述切换单元具体用于：
    在资源重选时，将所述第一侧行链路进程承载的RLC实体由所述第一实体切换至所述第二实体。
  9. 根据权利要求7或8所述的终端设备，其特征在于，所述切换单元具体用于：
    在资源重选时，若所述至少一个侧行链路中的第二侧行链路进程没承载所述第一实体，将所述第一侧行链路进程承载的RLC实体由所述第一实体切换至所述第二实体。
  10. 根据权利要求9所述的终端设备，其特征在于，所述切换单元更具体用于：
    在资源重选时，若所述至少一个侧行链路中除所述第一侧行链路进程之外的侧行链路进程均没承载所述第一实体，将所述第一侧行链路进程承载的RLC实体由所述第一实体切换至所述第二实体。
  11. 根据权利要求7或8所述的终端设备，其特征在于，所述切换单元具体用于：
    在资源重选时，若所述至少一个侧行链路中的第二侧行链路进程承载有所述第一实体，阻止所述第一侧行链路进程承载所述第一实体和所述第二实体；
    直到所述第二侧行链路进程没承载所述第一实体时，允许所述第一侧行链路进程承载所述第二实体。
  12. 根据权利要求11所述的终端设备，其特征在于，所述切换单元更具体用于：
    在资源重选时，若所述至少一个侧行链路中的多个侧行链路进程承载有所述第一实体，阻止所述第一侧行链路进程承载所述第一实体和所述第二实体；
    直到所述多个侧行链路进程中的每个侧行链路进程均没承载所述第一实体时，允许所述第一侧行链路进程承载所述第二实体。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11310794B2 (en) * 2017-11-02 2022-04-19 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Data transmission method in internet of vehicles and terminal

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114631378A (zh) * 2020-01-09 2022-06-14 Oppo广东移动通信有限公司 侧行链路承载的管理方法、装置、终端和介质

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090016301A1 (en) * 2007-07-11 2009-01-15 Interdigital Technology Corporation Packet data convergence protocol operations
CN103201977A (zh) * 2010-11-08 2013-07-10 高通股份有限公司 用于使用多链路pdcp 子层进行多点hsdpa 通信的***和方法
CN105659690A (zh) * 2013-10-21 2016-06-08 Lg电子株式会社 在双连接中发送上行链路数据的方法及其设备

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090016301A1 (en) * 2007-07-11 2009-01-15 Interdigital Technology Corporation Packet data convergence protocol operations
CN103201977A (zh) * 2010-11-08 2013-07-10 高通股份有限公司 用于使用多链路pdcp 子层进行多点hsdpa 通信的***和方法
CN105659690A (zh) * 2013-10-21 2016-06-08 Lg电子株式会社 在双连接中发送上行链路数据的方法及其设备

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
CATT: "Mapping of logical channels onto CCs in CA with duplication", 3GPP TSG-RAN WG2 MEETING#98, HANGZHOU, CHINA; 15TH-19TH MAY2017, R2-1704248, 19 May 2017 (2017-05-19), XP051264336 *
QUALCOMM INCORPORATED: "Discussion on PDCP duplication", 3GPP TSG-RAN WG2 MEETING #98, HANGZHOU, CHINA; 15TH-19TH MAY 2017, R2-1705056, 19 May 2017 (2017-05-19), XP051264704 *
ZTE: "Consideration on the LCP for data duplication", 3GPP TSG-RAN WG2 MEETING #98, HANGZHOU, CHINA; 15TH-19TH MAY 2017, R2-1704666, 19 May 2017 (2017-05-19), XP051263852 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11310794B2 (en) * 2017-11-02 2022-04-19 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Data transmission method in internet of vehicles and terminal

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