WO2020063443A1 - Pdcp重复的配置方法和终端设备 - Google Patents

Pdcp重复的配置方法和终端设备 Download PDF

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Publication number
WO2020063443A1
WO2020063443A1 PCT/CN2019/106676 CN2019106676W WO2020063443A1 WO 2020063443 A1 WO2020063443 A1 WO 2020063443A1 CN 2019106676 W CN2019106676 W CN 2019106676W WO 2020063443 A1 WO2020063443 A1 WO 2020063443A1
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Prior art keywords
terminal device
configuration information
pdcp duplication
access technology
radio access
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PCT/CN2019/106676
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English (en)
French (fr)
Inventor
杨晓东
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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 JP2021517445A priority Critical patent/JP7342113B2/ja
Priority to EP19867554.8A priority patent/EP3860015A4/en
Publication of WO2020063443A1 publication Critical patent/WO2020063443A1/zh
Priority to US17/212,916 priority patent/US20210258987A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H04W76/16—Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1822—Automatic repetition systems, e.g. Van Duuren systems involving configuration of automatic repeat request [ARQ] with parallel processes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Definitions

  • the present application relates to the field of communications, and in particular, to a configuration method and terminal device for packet data convergence protocol (Packet Data Convergence Protocol, PDCP) duplication.
  • Packet Data Convergence Protocol Packet Data Convergence Protocol, PDCP
  • NR New Radio or New Radio
  • URLLC high-reliable and low-latency communications
  • PDCP duplication mechanism that is, to transmit the same PDCP layer protocol data unit (Protocol Data Unit) through multiple paths, and improve transmission reliability through multiple transmission gains, and Reduce transmission delay.
  • the PDCP duplication mechanism is mainly due to the introduction of URLLC. At present, there is no scheme related to the configuration of PDCP duplication. Therefore, it is necessary to provide a scheme related to the configuration of PDCP for PDCP duplication configuration.
  • the purpose of some embodiments of the present disclosure is to provide a PDCP duplication configuration method and terminal device for PDCP duplication configuration.
  • a method for configuring PDCP duplication includes: a terminal device determines PDCP duplication configuration information of a side link (SL, or translated into a side link, a side link, etc.); Use the configuration information described above to perform SLPDCP duplication configuration.
  • a terminal device which includes: a determining module for determining configuration information of SLPDCPduplication; and a configuration module for performing SLPDCPduplication configuration according to the configuration information.
  • a terminal device includes a processor, a memory, and a computer program stored on the memory and executable on the processor.
  • the computer program is executed by the processor, Steps of implementing the method for configuring PDCP duplication according to the first aspect.
  • a computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, implements the steps of the PDCP duplication configuration method according to the first aspect. .
  • a method for configuring PDCP duplication and a terminal device provided by some embodiments of the present disclosure.
  • the terminal device can determine SLPDCP duplication configuration information, and perform SLPDCP duplication configuration according to the determined configuration information, thereby improving communication effectiveness.
  • FIG. 1 is a schematic flowchart of a PDCP duplication configuration method according to an embodiment of the present disclosure
  • FIG. 2 is a specific application diagram of a PDCP duplication configuration method according to an embodiment of the present disclosure
  • FIG. 3 is a specific application diagram of a PDCP duplication configuration method according to another embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of a specific application of a PDCP duplication configuration method according to yet another embodiment of the present disclosure
  • FIG. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a terminal device according to another embodiment of the present disclosure.
  • GSM Global System for Mobile
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the terminal device may include, but is not limited to, a mobile station (MS), a mobile terminal (Mobile), a mobile phone (Mobile), a user terminal device (User, Equipment, UE), and a mobile phone.
  • MS mobile station
  • Mobile mobile terminal
  • Mobile mobile phone
  • User, Equipment, UE user terminal device
  • RAN Radio Access Network
  • the terminal equipment can communicate with one or more core networks via a Radio Access Network (RAN), for example, the terminal equipment may be Mobile phones (also called "cellular" phones), computers with wireless communication functions, etc.
  • Terminal devices can also be portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices.
  • the network device is a device that is deployed in a wireless access network to provide a wireless communication function for a terminal device.
  • the 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 the like.
  • the names of terminal devices with base station functions may vary.
  • eNB Evolved NodeB
  • 3G 3rd Generation
  • Node B Node B
  • Network equipment, etc. but the wording does not constitute a restriction.
  • an embodiment of the present disclosure provides a method for configuring PDCP duplication.
  • the method may be performed by a terminal device.
  • the terminal device mentioned in this embodiment may specifically be an SL sending terminal device or SL receiving terminal equipment, SL sending terminal equipment can send data to SL receiving terminal equipment based on SL PDCP duplication, this embodiment includes the following steps:
  • the terminal device determines configuration information of the SLPDCPduplication
  • the above configuration information is mainly used to instruct the terminal device to perform SLPDCPduplication configuration, which may specifically include at least one of the following:
  • the first configuration information is used to indicate activation or deactivation of PDCP duplication.
  • the sending terminal device can send data through the LTE secondary link or data through the NR secondary link.
  • the second configuration information is used to indicate the wireless access technology used by PDCP duplication, which can specifically use LTE or NR, or that one transmission branch of PDCP duplication uses LTE; the other transmission branch of PDCP duplication uses NR, and so on.
  • the third configuration information is used to indicate the wireless access technology used by PDCP in PDCP duplication.
  • LTE or NR can be used.
  • the PDCP entity is usually one.
  • the LTE PDCP entity or the NR PDCP entity can be used.
  • Fourth configuration information which is used to indicate a logical channel identifier (LCID) used by PDCP duplication;
  • LCID logical channel identifier
  • the fifth configuration information is used to indicate carrier information used by PDCP duplication
  • the sixth configuration information is used to indicate the number of transmission branches used by PDCP duplication, see the embodiments shown in the subsequent FIG. 2 to FIG. 4;
  • Seventh configuration information which is used to indicate a transmission bandwidth part (Band Width Part) used by PDCP duplication;
  • the eighth configuration information is used to indicate the transmission resource pool used by PDCP duplication.
  • S104 Perform SLPDPDduplication configuration according to the configuration information.
  • the terminal device after the terminal device performs SLPDPDduplication configuration according to the configuration information, it can transmit data based on SLPDCPduplication.
  • SLPDCPduplication a transmission branch of PDCPduplication uses LTE; Duplication's other transmission branch uses NR and so on.
  • the terminal device transmits data based on SLPDCPduplication, and can mainly adopt a transmission form such as broadcast, multicast, or unicast.
  • Unicast is a one-to-one transmission.
  • Multicast is one-to-many transmission.
  • Broadcasting is also one-to-many transmission, but broadcasting does not have the concept that SL receiving terminal equipment belongs to the same group.
  • the SL receiving terminal device does not need to provide feedback on the reception status of the data.
  • a terminal device can determine SLPDCPduplication configuration information, and perform SLPDCPduplication configuration according to the determined configuration information, thereby improving communication effectiveness.
  • the foregoing terminal device may be an SL sending terminal device.
  • the above SLPDCP duplication configuration information may be sent by the network device, the SL resource scheduling terminal device, or the SL receiving terminal device to the SL sending terminal device, or
  • the configuration information of the SL PDCP duplication is predetermined by the SL sending terminal device and the SL receiving terminal device.
  • the foregoing terminal device may be an SL receiving terminal device, so
  • the above SLPDCP duplication configuration information may be sent by the network device, the SL resource scheduling terminal device, or the SL sending terminal device to the SL receiving terminal device, or
  • the configuration information of the SL PDCP duplication is predetermined by the SL sending terminal device and the SL receiving terminal device.
  • the above configuration information does not include the first configuration information, and the configuration information may include at least one of the above second configuration information to the eighth configuration information.
  • SL PDCP duplication can always maintain the activated state.
  • either the SL resource scheduling terminal device or the SL receiving terminal device sends SL PDCP duplication configuration information to the SL sending terminal device, or the SL resource scheduling terminal device or the SL sending terminal device sends the SL receiving terminal device to the SL receiving terminal device.
  • the configuration information of SL PDCP duplication and the configuration information of SL PDCP duplication can be sent through broadcast; or, sent through the control channel; or sent through the data channel.
  • the control channel includes, for example, a PSCCH; and the data channel includes, for example, a PSSCH.
  • the transmission resource pool may be sent or pre-configured by a network device, and the transmission resource pool includes resources used for discovery or transmission and transmission-related parameters, Including the offset value of the first sub-frame of the resource pool, the bitmap bitmap corresponding to the resource pool, whether the physical side link control channel (PSCCH) and the physical side link control channel (PSCCH) will be transmitted in the adjacent resource block (RB).
  • the transmission resource pool includes resources used for discovery or transmission and transmission-related parameters, Including the offset value of the first sub-frame of the resource pool, the bitmap bitmap corresponding to the resource pool, whether the physical side link control channel (PSCCH) and the physical side link control channel (PSCCH) will be transmitted in the adjacent resource block (RB).
  • PSCCH physical side link control channel
  • PSCCH physical side link control channel
  • PSSCH Physical Secondary Side Shared Channel
  • network devices may also be configured with exceptional resource pools (exceptional pools).
  • exceptional resource pools are used in special situations, such as during a handover process or a wireless link failure ( Radio Link Failure (RLF), or in the process of transitioning from the idle state (IDLE) to the connected state (CONNECTED), and so on.
  • RLF Radio Link Failure
  • IDLE idle state
  • CONNECTED connected state
  • the above-mentioned SL PDCP duplication configuration information may be pre-agreed, for example, at least one of SL PDCP duplication configuration information and service attributes, logical channel priority, channel conditions, and sending terminal device capabilities A mapping relationship exists.
  • the configuration information of the pre-approved SL PDCP duplication will be described below as an example.
  • mapping rule may be specifically related to the service attributes, logical channel priorities, channel conditions, and SL transmitting terminal equipment / SL receiving terminal equipment. At least one of these capabilities is related.
  • the LTE PDCP or the NR PDCP is determined according to the mapping rule.
  • the mapping rule here may be specifically related to the service attributes, logical channel priorities, channel conditions, and SL sending terminal equipment / At least one of the capabilities of the SL receiving terminal is related.
  • the fourth configuration information may be indicated in a manner of reserving a logical channel identifier LCID.
  • LCID1 and LCID5 in the LTE system are used for SLPDPDduplication transmission data
  • LCID2 and LCID5 in the NR system are used for SLPDCPduplication transmission data
  • the LCID2 and LTE system in the NR system are agreed in advance
  • the LCID 1 under the NR system can be used to transmit the same data
  • the LCID 5 under the NR system and the LCID 5 under the LTE system can be used to transmit the same data, and so on.
  • carrier information of SL PDCP duplication may be determined according to a mapping rule.
  • the mapping rule here may be specifically related to at least one of the foregoing service attributes, logical channel priorities, channel conditions, and SL sending terminal equipment / SL receiving terminal equipment capabilities.
  • the number of transmission branches is determined according to service attributes. Specifically, for example, when the priority of a service is high, a large number of transmission branches are determined to ensure correct reception by the SL receiving terminal device; when the priority of a service is low, a small number of transmission branches are determined to save transmission resources. It should be noted that the higher and lower priorities mentioned above are relative concepts.
  • the transmission BWP used by PDCP duplication may be determined according to a mapping rule.
  • a transmission resource pool used by PDCP duplication may be determined according to a mapping rule.
  • the fourth configuration information includes at least two LCIDs, and the at least two LCIDs are configured by a same Medium Access Control (MAC) entity, or the at least two LCIDs are configured by different MAC entities.
  • MAC Medium Access Control
  • SL PDCP duplication spans two wireless access technologies (cross RAT), that is, the first wireless access Access technology and the second radio access technology, the first radio access technology may specifically be LTE, and the second radio access technology may specifically be NR.
  • cross RAT two wireless access technologies
  • a first logical channel LCID1 of a first radio access technology and a second logical channel LCID2 of a second radio access technology correspond to the same MAC entity.
  • the first logical channel LCID1 and the second logical channel LCID2 are configured by the same MAC entity as described above.
  • the first Hybrid Automatic Repeat Request (HARQ) process of the first radio access technology and the second HARQ process of the second radio access technology are allocated by the same MAC entity as described above. of.
  • the SLs of LTE and NR use the same MAC, that is, the logical channel LCID1 or HARQ process of LTE, and the logical channel LCID2 or HARQ process of NR are based on unified LCID allocation or based on unified HARQ process allocation.
  • Logical channels or HARQs of different radio access technology RATs can be mapped on different carriers, as shown in CC1 and CC2 in FIG. 2, where CC represents a component carrier.
  • the SL transmitting terminal device performs a data copy function at the PDCP layer, and the copied SL PDCP (Protocol Data Unit) is delivered to two different radio link controls (Radio Link Control, RLC).
  • RLC Radio Link Control
  • RLC1 and RLC2 Different RLC entities correspond to different logical channels, and different logical channels have different LCIDs.
  • RLC1 corresponds to LCID1
  • RLC2 corresponds to LCID2.
  • this embodiment does not support transmission of two replicated data packets on the same CC. Therefore, the Medium Access Control (MAC) layer needs to pass different HARQ entities when processing replicated data from different logical channels. For transmission, see HARQ1 and HARQ2 in Figure 2.
  • MAC Medium Access Control
  • Some embodiments of the present disclosure may determine the configuration information of SLPDCPduplication based on the embodiment shown in FIG. 1 and perform SLPDCPduplication configuration based on the configuration information. To avoid repetition, the specific implementation process is not described again.
  • SL PDCP duplication spans two wireless access technologies, namely a first wireless access technology and The second radio access technology, the first radio access technology may specifically be LTE, and the second radio access technology may specifically be NR.
  • a first logical channel LCID1 of a first radio access technology corresponds to a first MAC entity MAC1; a second logical channel LCID2 of a second radio access technology corresponds to a second MAC entity MAC2.
  • the first HARQ process of the first radio access technology corresponds to the first MAC entity MAC1; the second HARQ process of the second radio access technology corresponds to the second MAC entity MAC2.
  • the first MAC entity MAC1 and the second MAC entity MAC2 are different.
  • SLs of LTE and NR use different MACs, that is, logical channel LCID1 or HARQ process of LTE, and logical channel LCID2 or HARQ process of NR are allocated based on different MACs.
  • Logical channels or HARQs of different RATs can be mapped on different carriers. For details, see CC1 and CC2 in Figure 3, where CC represents a component carrier.
  • the SL transmitting terminal device performs a data copy function at the PDCP layer, and the copied SL PDCP (Protocol Data Unit) is delivered to two different radio link controls (Radio Link Control, RLC).
  • RLC Radio Link Control
  • RLC1 and RLC2 Different RLC entities correspond to different logical channels, and different logical channels have different LCIDs.
  • RLC1 corresponds to LCID1
  • RLC2 corresponds to LCID2.
  • this embodiment does not support transmission of two replicated data packets on the same CC.
  • HARQ1 and HARQ2 correspond to different MAC entities, respectively. See FIG. 3 for MAC1 and MAC2, which ensures that CC1 and CC2 are different.
  • Some embodiments of the present disclosure may determine the configuration information of SLPDCPduplication based on the embodiment shown in FIG. 1 and perform SLPDCPduplication configuration based on the configuration information. To avoid repetition, the specific implementation process is not described again.
  • an embodiment of the present disclosure provides a specific application schematic diagram of a PDCP duplication configuration method.
  • SL PDCP duplication spans two wireless access technologies, namely a first wireless access technology and a first wireless access technology.
  • the first radio access technology may be LTE
  • the second radio access technology may be NR.
  • the first radio access technology LTE includes two logical channels, as shown in LCID1 and LCID2 in FIG. 4;
  • the second radio access technology NR includes two logical channels, as shown in FIG. LCID3 and LCID4.
  • LCID1 and LCID2 correspond to the first MAC entity MAC1; LCID3 and LCID4 correspond to the second MAC entity MAC2, and MAC1 and MAC2 are different.
  • the SL sending terminal device performs a data copy function at the PDCP layer, and the copied SL PDCP (Protocol Data Unit, Protocol Data Unit) is delivered to four different radio link control (RLC) Entities, see RLC1, RLC2, RLC3, and RLC4 in Figure 4.
  • RLC radio link control
  • Different RLC entities correspond to different logical channels, and different logical channels have different LCIDs.
  • RLC1 corresponds to LCID1
  • RLC2 corresponds to LCID2
  • RLC3 corresponds to LCID3
  • RLC4 corresponds to LCID4.
  • this embodiment does not support transmission of two replicated data packets on the same CC, HARQ1, HARQ2, and HARQ3 and HARQ4 respectively correspond to different MAC entities, as shown in MAC1 and MAC2 in FIG. 4.
  • Some embodiments of the present disclosure may determine the configuration information of SLPDCPduplication based on the embodiment shown in FIG. 1 and perform SLPDCPduplication configuration based on the configuration information. To avoid repetition, the specific implementation process is not described again.
  • the number of first logical channels of the first radio access technology is two, and the number of second logical channels of the second radio access technology is two.
  • the number of transmission branches is four. Each.
  • the number of first logical channels of the first radio access technology is at least one; and / or the number of second logical channels of the second radio access technology is at least one.
  • the terminal device 500 includes:
  • the determining module 502 may be used to determine configuration information of SL PDCP duplication
  • the configuration module 504 may be configured to perform SLPDCPduplication configuration according to the configuration information.
  • Some embodiments of the present disclosure provide a terminal device capable of determining configuration information of SLPDCPduplication, and performing SLPDCPduplication configuration according to the determined configuration information, thereby improving communication effectiveness.
  • the terminal device is an SL sending terminal device
  • the SL PDCP duplication configuration information is sent by the network device, the SL resource scheduling terminal device, or the SL receiving terminal device to the SL sending terminal device, or
  • the configuration information of the SLPDCPduplication is predetermined by the SL sending terminal device and the SL receiving terminal device.
  • the terminal device is an SL receiving terminal device
  • the configuration information of the SLPDCPduplication is sent by the network device, the SL resource scheduling terminal device, or the SL sending terminal device to the SL receiving terminal device, or
  • the configuration information of the SLPDCPduplication is predetermined by the SL sending terminal device and the SL receiving terminal device.
  • the configuration information of the SLPDCPduplication includes at least one or a combination of the following:
  • First configuration information which is used to indicate activation or deactivation of PDCP duplication
  • Second configuration information which is used to indicate a wireless access technology adopted by PDCP duplication
  • the third configuration information is used to indicate a wireless access technology used by PDCP in PDCP duplication
  • Fourth configuration information which is used to indicate a logical channel identifier LCID used by PDCP duplication
  • the fifth configuration information is used to indicate carrier information used by PDCP duplication
  • the sixth configuration information is used to indicate the number of transmission branches used by PDCP duplication
  • the seventh configuration information is used to indicate the transmission bandwidth part BWP used by PDCP duplication
  • the eighth configuration information is used to indicate the transmission resource pool used by PDCP duplication.
  • the configuration information of the SLPDCPduplication is sent through broadcast; or, sent through a control channel; or sent through a data channel.
  • the determining module 502 determines that the configuration information of the SLPDCPduplication includes:
  • the terminal device determines SLPDCPduplication configuration information according to at least one or a combination of service attributes, logical channel priorities, and channel conditions.
  • the fourth configuration information includes at least two LCIDs
  • the at least two LCIDs are configured by the same MAC entity, or
  • the at least two LCIDs are configured by different MAC entities.
  • the SL PDCP duplication uses at least two wireless access technologies.
  • the at least two radio access technologies include a first radio access technology and a second radio access technology, where:
  • the first logical channel corresponding to the first radio access technology and the second logical channel corresponding to the second radio access technology are configured by the same MAC entity; and / or
  • the first HARQ process corresponding to the first logical channel and the second HARQ process corresponding to the second logical channel are configured by the same MAC entity.
  • the at least two radio access technologies include a first radio access technology and a second radio access technology, where:
  • a first logical channel of the first radio access technology corresponds to a first MAC entity; a second logical channel of the second radio access technology corresponds to a second MAC entity; and / or
  • a first HARQ process of the first radio access technology corresponds to the first MAC entity; a second HARQ process of the second radio access technology corresponds to the second MAC entity, wherein,
  • the first MAC entity is different from the second MAC entity.
  • the number of the first logical channels is at least one; and / or the number of the second logical channels is at least one.
  • the terminal device 500 may refer to the process of the method 100 corresponding to some embodiments of the present disclosure, and each unit / module in the terminal device 500 and the other operations and / or functions described above are implemented for the method The corresponding processes in 100 are not repeated here for brevity.
  • FIG. 6 is a block diagram of a terminal device according to another embodiment of the present disclosure.
  • the terminal device 600 shown in FIG. 6 includes: at least one processor 601, a memory 602, at least one network interface 604, and a user interface 603.
  • the various components in the terminal device 600 are coupled together by a bus system 605. It can be understood that the bus system 605 is used to implement connection and communication between these components.
  • the bus system 605 includes a power bus, a control bus, and a status signal bus in addition to the data bus. However, for the sake of clarity, various buses are marked as the bus system 605 in FIG. 6.
  • the user interface 603 may include a display, a keyboard, or a pointing terminal device (for example, a mouse, a trackball, a touch pad, or a touch screen).
  • a pointing terminal device for example, a mouse, a trackball, a touch pad, or a touch screen.
  • the memory 602 in some embodiments of the present disclosure 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 (PROM), an erasable programmable read-only memory (EPROM), and an electronic memory. Erase programmable read-only memory (EPROM, EEPROM) or flash memory.
  • the volatile memory may be Random Access Memory (RAM), which is used as an external cache.
  • RAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • DRAM Synchronous Dynamic Random Access Memory
  • SDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • Double SDRAM Double SDRAM
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • Enhanced SDRAM ESDRAM
  • Synchronous Dynamic Dynamic Access Memory And direct memory bus random access memory Direct RAMbus RAM, DRRAM.
  • the memory 602 of the systems and methods described by some embodiments of the present disclosure is intended to include, but is not limited to, these and any other suitable types of memory.
  • the memory 602 stores the following elements, executable modules or data structures, or a subset of them, or their extended set: an operating system 6021 and an application program 6022.
  • the operating system 6021 includes various system programs, such as a framework layer, a core library layer, and a driver layer, for implementing various basic services and processing hardware-based tasks.
  • the application program 6022 includes various application programs, such as a media player (Player), a browser (Browser), and the like, and is used to implement various application services. Programs that implement the methods of some embodiments of the present disclosure may be included in the application 6022.
  • the terminal device 600 further includes a computer program stored in the memory 602 and executable on the processor 601. When the computer program is executed by the processor 601, the steps of the method embodiment 100 described above are implemented.
  • the methods disclosed in some embodiments of the present disclosure described above may be applied to the processor 601, or implemented by the processor 601.
  • the processor 601 may be an integrated circuit chip and has a signal processing capability. In the implementation process, each step of the above method may be completed by using an integrated logic circuit of hardware in the processor 601 or an instruction in the form of software.
  • the above processor 601 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA), or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA ready-made programmable gate array
  • Various methods, steps, and logic block diagrams disclosed in some embodiments of the present disclosure may be implemented or performed.
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in combination with some embodiments of the present disclosure may be directly implemented by a hardware decoding processor, or may be performed by using a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a mature computer-readable storage medium, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, and the like.
  • the computer-readable storage medium is located in the memory 602, and the processor 601 reads the information in the memory 602 and completes the steps of the above method in combination with its hardware.
  • a computer program is stored on the computer-readable storage medium, and when the computer program is executed by the processor 601, each step of the method embodiment 100 is implemented.
  • the embodiments described in some embodiments of the present disclosure may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof.
  • the processing unit can be implemented in one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSP), Digital Signal Processing Terminal Equipment (DSPD), Programmable logic terminal device (PLD), field-programmable gate array (FPGA), general-purpose processor, controller, microcontroller, microprocessor, for performing the functions described in this application Other electronic units or combinations thereof.
  • ASICs Application Specific Integrated Circuits
  • DSP Digital Signal Processors
  • DSPD Digital Signal Processing Terminal Equipment
  • PLD Programmable logic terminal device
  • FPGA field-programmable gate array
  • controller microcontroller
  • microprocessor for performing the functions described in this application Other electronic units or combinations thereof.
  • the technology described in some embodiments of the present disclosure can be implemented by modules (such as procedures, functions, etc.) that perform the functions described in some embodiments of the present disclosure.
  • Software codes may be stored in a memory and executed by a processor.
  • the memory may be implemented in the processor or external to the processor.
  • the terminal device 600 can implement the processes implemented by the terminal device in the foregoing embodiments. To avoid repetition, details are not described herein again.
  • Some embodiments of the present disclosure also provide a computer-readable storage medium.
  • a computer program is stored on the computer-readable storage medium.
  • the computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

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Abstract

本公开的一些实施例公开了一种PDCP duplication的配置方法和终端设备，用以进行PDCP duplication配置。所述方法包括：终端设备确定副链路SL PDCP duplication的配置信息；根据所述配置信息进行SL PDCP duplication配置。

Description

PDCP重复的配置方法和终端设备
相关申请的交叉引用
本申请主张在2018年9月27日在中国提交的中国专利申请号No.201811133676.2的优先权，其全部内容通过引用包含于此。
技术领域
本申请涉及通信领域，尤其涉及一种包数据汇聚协议(Packet Data Convergence Protocol，PDCP)重复(duplication)的配置方法和终端设备。
背景技术
新无线或称新空口(New Radio，NR)的业务之一是高可靠低时延通信(Ultra-Reliable and Low Latency Communications，URLLC)，对于URLLC，由于其对时延和可靠性都有比较高的要求，目前3GPP给出的一种解决方案是引入PDCP duplication机制，即通过多个路径传输相同的PDCP层协议数据单元(Protocol Data Unit，PDU)，通过多路传输增益提升传输可靠性，并降低传输时延。
PDCP duplication机制主要由于URLLC引入，目前，并没有关于PDCP duplication的配置相关的方案，因此，有必要提供PDCP duplication的配置相关方案，以进行PDCP duplication配置。
发明内容
本公开的一些实施例的目的是提供一种PDCP duplication的配置方法和终端设备，用以进行PDCP duplication配置。
第一方面，提供了一种PDCP duplication的配置方法，所述方法包括：终端设备确定副链路(sidelink，SL，或译为侧链路，边链路等)PDCP duplication的配置信息；根据所述配置信息进行SL PDCP duplication配置。
第二方面，提供了一种终端设备，包括：确定模块，用于确定SL PDCP duplication的配置信息；配置模块，用于根据所述配置信息进行SL PDCP  duplication配置。
第三方面，提供了一种终端设备，该终端设备包括处理器、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第一方面所述的PDCP duplication的配置方法的步骤。
第四方面，提供了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第一方面所述的PDCP duplication的配置方法的步骤。
本公开的一些实施例提供的PDCP duplication的配置方法和终端设备，终端设备能够确定SL PDCP duplication的配置信息，并根据确定的配置信息进行SL PDCP duplication配置，提高通信的有效性。
附图说明
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1是根据本公开的一个实施例的PDCP duplication的配置方法的示意性流程图；
图2是根据本公开的一个实施例的PDCP duplication的配置方法的具体应用示意图；
图3是根据本公开的另一个实施例的PDCP duplication的配置方法的具体应用示意图；
图4是根据本公开的再一个实施例的PDCP duplication的配置方法的具体应用示意图；
图5是根据本公开的一个实施例的终端设备的结构示意图；
图6是根据本公开的另一个实施例的终端设备的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合本申请具体 实施例及相应的附图对本申请技术方案进行清楚、完整地描述。显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
应理解，本公开的一些实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)或全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统、5G系统，或者说新无线(New Radio,NR)系统，或者为后续演进通信系统。
在本公开的一些实施例中，终端设备可以包括但不限于移动台(Mobile Station，MS)、移动终端(Mobile Terminal)、移动电话(Mobile Telephone)、用户终端设备(User Equipment，UE)、手机(handset)及便携终端设备(portable equipment)、车辆(vehicle)等，该终端设备可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，例如，终端设备可以是移动电话(或称为“蜂窝”电话)、具有无线通信功能的计算机等，终端设备还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。
本公开的一些实施例中，网络设备是一种部署在无线接入网中用以为终端设备提供无线通信功能的装置。所述网络设备可以为基站，所述基站可以包括各种形式的宏基站，微基站，中继站，接入点等。在采用不同的无线接入技术的系统中，具有基站功能的终端设备的名称可能会有所不同。例如在LTE网络中，称为演进的节点B(Evolved NodeB，eNB或eNodeB)，在第三代(3rd Generation，3G)网络中，称为节点B(Node B)，或者后续演进通信系统中的网络设备等等，然用词并不构成限制。
如图1所示，本公开的一个实施例提供一种PDCP duplication的配置方 法100，该方法可以由终端设备执行，该实施例中提到的终端设备，具体可以是SL发送终端设备，也可以SL接收终端设备，SL发送终端设备可以基于SL PDCP duplication向SL接收终端设备发送数据，该实施例包括如下步骤：
S102：终端设备确定SL PDCP duplication的配置信息；
可选地，上述配置信息，主要用于指示终端设备进行SL PDCP duplication配置，具体可以包括如下至少一种：
第一配置信息，用于指示激活或去激活PDCP duplication，在PDCP duplication去激活状态下，发送终端设备可以通过LTE副链路发送数据，或者是通过NR副链路发送数据。
第二配置信息，用于指示PDCP duplication采用的无线接入技术，具体可以采用LTE或NR，或者是，PDCP duplication的一个传输分支采用LTE；PDCP duplication的另一个传输分支采用NR等等。
第三配置信息，用于指示PDCP duplication中PDCP采用的无线接入技术，具体可以采用LTE或NR，PDCP实体通常是一个，具体可以采用LTE的PDCP实体，或者是采用NR的PDCP实体。
第四配置信息，用于指示PDCP duplication采用的逻辑信道标识(logical channel identifier，LCID)；
第五配置信息，用于指示PDCP duplication采用的载波信息；
第六配置信息，用于指示PDCP duplication采用的传输分支个数，见后续图2至图4所示的实施例；
第七配置信息，用于指示PDCP duplication采用的传输带宽部分(Band Width Part，BWP)；
第八配置信息，用于指示PDCP duplication采用的传输资源池。
S104：根据所述配置信息进行SL PDCP duplication配置。
可选地，终端设备根据配置信息进行SL PDCP duplication配置之后，即可基于SL PDCP duplication传输数据，具体可以采用至少两种无线接入技术传输数据，例如，PDCP duplication的一个传输分支采用LTE；PDCP duplication的另一个传输分支采用NR等等。
可选地，终端设备基于SL PDCP duplication传输数据，主要可以采用广播，组播或单播等传输形式。单播是一对一(one to one)的传输。组播为一对多(one to many)的传输。广播也是one to many的传输，但是广播并没有SL接收终端设备属于同一个组的概念。另外，SL接收终端设备不需要对上述数据的接收情况进行反馈。
本公开的一些实施例提供的PDCP duplication的配置方法，终端设备能够确定SL PDCP duplication的配置信息，并根据确定的配置信息进行SL PDCP duplication配置，提高通信的有效性。
可选地，上述终端设备可以为SL发送终端设备，这样，
上述SL PDCP duplication的配置信息可以由网络设备、SL资源调度终端设备或SL接收终端设备发送给所述SL发送终端设备，或者，
上述SL PDCP duplication的配置信息由所述SL发送终端设备和所述SL接收终端设备预先约定。
可选地，上述终端设备可以为SL接收终端设备，这样
上述SL PDCP duplication的配置信息可以由网络设备、SL资源调度终端设备或SL发送终端设备发送给所述SL接收终端设备，或者，
上述SL PDCP duplication的配置信息由所述SL发送终端设备和所述SL接收终端设备预先约定。
可选地，上述配置信息不包括第一配置信息，配置信息可以包括上述第二配置信息至第八配置信息中的至少一种，该实施例中，SL PDCP duplication可以始终维持被激活状态。
本公开的一些实施例中，无论是SL资源调度终端设备或SL接收终端设备向SL发送终端设备发送SL PDCP duplication的配置信息，还是SL资源调度终端设备或SL发送终端设备向SL接收终端设备发送SL PDCP duplication的配置信息，SL PDCP duplication的配置信息均可以通过广播发送；或者，通过控制信道发送；或者，通过数据信道发送。
上述控制信道，例如包括PSCCH；上述数据信道，例如包括PSSCH。
对于本公开的一些实施例上述第八配置信息中提到的传输资源池，该传输资源池可以由网络设备发送或预配置，传输资源池中包含发现或传输所用 的资源和传输相关的参数，包括资源池第一个子帧的偏移值、资源池对应的位图bitmap、是否会在相邻资源块(Resource Block，RB)传输物理副链路控制信道(Physical Sidelink Control Channel，PSCCH)和物理副链路共享信道(Physical Sidelink Shared Channel，PSSCH)、子信道的数量和每个子信道的大小以及子信道对应的最低RB索引值、PSCCH pool对应的最低RB索引值、CBR测量的S-RSSI门限、区域标识等等。
目前，网络设备除了给终端设备配置普通的传输资源池，还可能会配置异常资源池(exceptional pool)，异常资源池用于一些特殊的情况，如在切换过程中，或发生无线链路失败(Radio Link Failure，RLF)，或是从空闲态(IDLE)向连接态(CONNECTED)转换的过程中，等等。
在上述实施例中，可选地，上述SL PDCP duplication的配置信息可以是预先约定的，例如，SL PDCP duplication的配置信息与业务属性、逻辑信道优先级、信道条件和发送终端设备能力中的至少一种存在映射关系，以下将举例对上述预先约定SL PDCP duplication的配置信息进行说明。
例如，针对上述第一配置信息，预先约定在传输数据时总是激活SL PDCP duplication。
又例如，针对上述第二配置信息，根据映射规则决定采用LTE还是NR，该处的映射规则，具体可以是与上述业务属性、逻辑信道优先级、信道条件和SL发送终端设备/SL接收终端设备能力中的至少一种有关。
又例如，针对上述第三配置信息，根据映射规则决定用LTE的PDCP还是NR的PDCP，该处的映射规则，具体可以是与上述业务属性、逻辑信道优先级、信道条件和SL发送终端设备/SL接收终端设备能力中的至少一种有关。
又例如，针对上述第四配置信息，可以通过预留逻辑信道标识LCID的方式进行指示。比如LTE系统下的LCID 1和LCID 5用于进行SL PDCP duplication传输数据，NR系统下的LCID 2和LCID 5用于进行SL PDCP duplication传输数据，那么，预先约定NR系统下的LCID 2和LTE系统下的LCID 1可以用来传输相同的数据；NR系统下的LCID 5和LTE系统下的LCID 5可以用来传输相同的数据，等等。
又例如，针对上述第五配置信息，可以根据映射规则决定SL PDCP  duplication的载波信息。该处的映射规则，具体可以是与上述业务属性、逻辑信道优先级、信道条件和SL发送终端设备/SL接收终端设备能力中的至少一种有关。
又例如，针对上述第六配置信息，根据业务属性决定传输分支个数等等。具体例如，业务的优先级较高时，确定传输分支个数较多，以保证SL接收终端设备正确接收；业务的优先级较低时，确定传输分支个数较少，以节约传输资源。需要说明的是，上述提到的优先级较高和较低均是相对概念。
又例如，针对上述第七配置信息，可以根据映射规则决定PDCP duplication采用的传输BWP。
又例如，针对上述第八配置信息，可以根据映射规则决定PDCP duplication采用的传输资源池。
可选地，上述第四配置信息包含至少两个LCID，上述至少两个LCID由同一媒体接入控制(Medium Access Control，MAC)实体配置，或者，上述至少两个LCID由不同的MAC实体配置。
如图2所示，本公开的一个实施例提供一种PDCP duplication的配置方法的具体应用示意图，该实施例中，SL PDCP duplication跨越两种无线接入技术(cross RAT)，即第一无线接入技术和第二无线接入技术，第一无线接入技术具体可以是LTE，第二无线接入技术具体可以是NR。
参见图2，该实施例中，第一无线接入技术的第一逻辑信道LCID1和第二无线接入技术的第二逻辑信道LCID2对应于相同的MAC实体。
可选地，第一逻辑信道LCID1和第二逻辑信道LCID2，是由上述相同的MAC实体进行配置的。
可选地，第一无线接入技术的第一混合自动重传请求(Hybrid Automatic Repeat reQuest，HARQ)进程，和第二无线接入技术的第二HARQ进程，是由上述相同的MAC实体进行分配的。
该实施例中，具体地，LTE及NR的SL采用相同的MAC，即LTE的逻辑信道LCID1或HARQ进程，和NR的逻辑信道LCID2或HARQ进程基于统一的LCID分配或基于统一的HARQ进程分配。不同无线接入技术RAT的逻辑信道或HARQ可以映射在不同的载波上，具体见图2中的CC1和CC2， 图中CC代表成员载波(component carrier)。
该实施例中，SL发送终端设备在PDCP层执行数据复制功能，经过复制的SL PDCP PDU(Protocol Data Unit，协议数据单元)分别递交给两个不同的无线链路控制(Radio Link Control，RLC)实体，见图2中的RLC1和RLC2。不同的RLC实体对应不同的逻辑信道，不同的逻辑信道具有不同的LCID，在图2中，RLC1对应LCID1，RLC2对应LCID2.
此外，该实施例不支持在同一个CC上传输两个复制的数据包，因此媒体接入控制(Medium Access Control，MAC)层在处理来自不同逻辑信道的复制数据时，需经由不同的HARQ实体传输，见图2中的HARQ1和HARQ2。
本公开的一些实施例可以基于图1所示的实施例确定SL PDCP duplication的配置信息，并根据配置信息进行SL PDCP duplication配置，为避免重复，具体的实现过程不再赘述。
如图3所示，本公开的另一个实施例提供一种PDCP duplication的配置方法的具体应用示意图，该实施例中，SL PDCP duplication跨两种无线接入技术，即第一无线接入技术和第二无线接入技术，第一无线接入技术具体可以是LTE，第二无线接入技术具体可以是NR。
参见图3，该实施例中，第一无线接入技术的第一逻辑信道LCID1对应于第一MAC实体MAC1；第二无线接入技术的第二逻辑信道LCID2对应于第二MAC实体MAC2。
可选地，第一无线接入技术的第一HARQ进程对应于第一MAC实体MAC1；第二无线接入技术的第二HARQ进程对应于第二MAC实体MAC2。
该实施例中，第一MAC实体MAC1和第二MAC实体MAC2不同。
该实施例中，具体地，LTE及NR的SL采用不同的MAC，即LTE的逻辑信道LCID1或HARQ进程，和NR的逻辑信道LCID2或HARQ进程基于不同的MAC分配。不同RAT的逻辑信道或HARQ可以映射在不同的载波上，具体见图3中的CC1和CC2，图中CC代表成员载波。
该实施例中，SL发送终端设备在PDCP层执行数据复制功能，经过复制的SL PDCP PDU(Protocol Data Unit，协议数据单元)分别递交给两个不同的无线链路控制(Radio Link Control，RLC)实体，见图3中的RLC1和RLC2。 不同的RLC实体对应不同的逻辑信道，不同的逻辑信道具有不同的LCID，在图3中，RLC1对应LCID1，RLC2对应LCID2.
此外，该实施例不支持在同一个CC上传输两个复制的数据包，HARQ1和HARQ2分别对应于不同的MAC实体，见图3中的MAC1和MAC2，保证了CC1和CC2不同。
本公开的一些实施例可以基于图1所示的实施例确定SL PDCP duplication的配置信息，并根据配置信息进行SL PDCP duplication配置，为避免重复，具体的实现过程不再赘述。
如图4所示，本公开的一个实施例提供一种PDCP duplication的配置方法的具体应用示意图，该实施例中，SL PDCP duplication跨两种无线接入技术，即第一无线接入技术和第二无线接入技术，第一无线接入技术具体可以是LTE，第二无线接入技术具体可以是NR。
参见图4，该实施例中，第一无线接入技术LTE包括有两个逻辑信道，见图4中的LCID1和LCID2；第二无线接入技术NR包括有两个逻辑信道，见图4中的LCID3和LCID4。
LCID1和LCID2对应于第一MAC实体MAC1；LCID3和LCID4对应于第二MAC实体MAC2，MAC1和MAC2不同。
该实施例中，SL发送终端设备在PDCP层执行数据复制功能，经过复制的SL PDCP PDU(Protocol Data Unit，协议数据单元)分别递交给四个不同的无线链路控制(Radio Link Control，RLC)实体，见图4中的RLC1、RLC2、RLC3和RLC4。不同的RLC实体对应不同的逻辑信道，不同的逻辑信道具有不同的LCID，在图4中，RLC1对应LCID1，RLC2对应LCID2，RLC3对应LCID3，RLC4对应LCID4。
此外，该实施例不支持在同一个CC上传输两个复制的数据包，HARQ1、HARQ2，以及HARQ3和HARQ4分别对应于不同的MAC实体，见图4中的MAC1和MAC2。
本公开的一些实施例可以基于图1所示的实施例确定SL PDCP duplication的配置信息，并根据配置信息进行SL PDCP duplication配置，为避免重复，具体的实现过程不再赘述。
该实施例中，第一无线接入技术的第一逻辑信道的数量为两个，第二无线接入技术的第二逻辑信道的数量为两个，该实施例中传输分支的个数是4个。
可选地，该其它实施例中，第一无线接入技术的第一逻辑信道的数量为至少一个；和/或第二无线接入技术的第二逻辑信道的数量为至少一个。
以上结合图1至图4详细描述了根据本公开的一些实施例的PDCP duplication的配置方法。下面将结合图5详细描述根据本公开的一些实施例的终端设备。
图5是根据本公开的一些实施例的终端设备的结构示意图，该终端设备具体可以是SL发送终端设备，也可以是SL接收终端设备。如图5所示，终端设备500包括：
确定模块502，可以用于确定SL PDCP duplication的配置信息；
配置模块504，可以用于根据所述配置信息进行SL PDCP duplication配置。
本公开的一些实施例提供终端设备，能够确定SL PDCP duplication的配置信息，并根据确定的配置信息进行SL PDCP duplication配置，提高通信的有效性。
可选地，作为一个实施例，当所述终端设备为SL发送终端设备时，
所述SL PDCP duplication的配置信息由网络设备、SL资源调度终端设备或SL接收终端设备发送给所述SL发送终端设备，或者，
所述SL PDCP duplication的配置信息由所述SL发送终端设备和所述SL接收终端设备预先约定。
可选地，作为一个实施例，当所述终端设备为SL接收终端设备时，
所述SL PDCP duplication的配置信息由网络设备、SL资源调度终端设备或SL发送终端设备发送给所述SL接收终端设备，或者，
所述SL PDCP duplication的配置信息由所述SL发送终端设备和所述SL接收终端设备预先约定。
可选地，作为一个实施例，所述SL PDCP duplication的配置信息包括如下至少一种或组合：
第一配置信息，用于指示激活或去激活PDCP duplication；
第二配置信息，用于指示PDCP duplication采用的无线接入技术；
第三配置信息，用于指示PDCP duplication中PDCP采用的无线接入技术；
第四配置信息，用于指示PDCP duplication采用的逻辑信道标识LCID；
第五配置信息，用于指示PDCP duplication采用的载波信息；
第六配置信息，用于指示PDCP duplication采用的传输分支个数；
第七配置信息，用于指示PDCP duplication采用的传输带宽部分BWP；
第八配置信息，用于指示PDCP duplication采用的传输资源池。
可选地，作为一个实施例，所述SL PDCP duplication的配置信息通过广播发送；或者，通过控制信道发送；或者，通过数据信道发送。
可选地，作为一个实施例，所述确定模块502确定SL PDCP duplication的配置信息包括：
所述终端设备根据业务属性、逻辑信道优先级和信道条件中的至少一种或组合确定SL PDCP duplication的配置信息。
可选地，作为一个实施例，所述第四配置信息包含至少两个LCID，
所述至少两个LCID由同一MAC实体配置，或者
所述至少两个LCID由不同的MAC实体配置。
可选地，作为一个实施例，所述SL PDCP duplication采用至少两种无线接入技术。
可选地，作为一个实施例，所述至少两种无线接入技术包括第一无线接入技术和第二无线接入技术，其中，
所述第一无线接入技术对应的第一逻辑信道及所述第二无线接入技术对应的第二逻辑信道由同一MAC实体配置；和/或
所述第一逻辑信道对应的第一HARQ进程及所述第二逻辑信道对应的第二HARQ进程由所述同一MAC实体配置。
可选地，作为一个实施例，所述至少两种无线接入技术包括第一无线接入技术和第二无线接入技术，其中，
所述第一无线接入技术的第一逻辑信道对应于第一MAC实体；所述第 二无线接入技术的第二逻辑信道对应于第二MAC实体，和/或
所述第一无线接入技术的第一HARQ进程对应于所述第一MAC实体；所述第二无线接入技术的第二HARQ进程对应于所述第二MAC实体，其中，
所述第一MAC实体和所述第二MAC实体不同。
可选地，作为一个实施例，所述第一逻辑信道的数量为至少一个；和/或所述第二逻辑信道的数量为至少一个。
根据本公开的一些实施例的终端设备500可以参照对应本公开的一些实施例的方法100的流程，并且，该终端设备500中的各个单元/模块和上述其他操作和/或功能分别为了实现方法100中的相应流程，为了简洁，在此不再赘述。
图6是本公开另一个实施例的终端设备的框图。图6所示的终端设备600包括：至少一个处理器601、存储器602、至少一个网络接口604和用户接口603。终端设备600中的各个组件通过总线系统605耦合在一起。可理解，总线系统605用于实现这些组件之间的连接通信。总线系统605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。但是为了清楚说明起见，在图6中将各种总线都标为总线系统605。
其中，用户接口603可以包括显示器、键盘或者点击终端设备(例如，鼠标，轨迹球(trackball)、触感板或者触摸屏等。
可以理解，本公开的一些实施例中的存储器602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，DDRSDRAM)、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(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本公开的一些实施例描述的系统和方法的存储器602旨在包括但不限于这些和任意其它适合类型的存储器。
在一些实施方式中，存储器602存储了如下的元素，可执行模块或者数据结构，或者他们的子集，或者他们的扩展集：操作系统6021和应用程序6022。
其中，操作系统6021，包含各种系统程序，例如框架层、核心库层、驱动层等，用于实现各种基础业务以及处理基于硬件的任务。应用程序6022，包含各种应用程序，例如媒体播放器(Media Player)、浏览器(Browser)等，用于实现各种应用业务。实现本公开的一些实施例方法的程序可以包含在应用程序6022中。
在本公开的一些实施例中，终端设备600还包括：存储在存储器上602并可在处理器601上运行的计算机程序，计算机程序被处理器601执行时实现如前文方法实施例100的步骤。
上述本公开的一些实施例揭示的方法可以应用于处理器601中，或者由处理器601实现。处理器601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，上述方法的各步骤可以通过处理器601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601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、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本公开的一些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。结合本公开的一些实施例所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、寄存器等本领域成熟的计算机可读存储介质中。该计算机可读存储介质位于存储器602，处理器601读取存储器602中 的信息，结合其硬件完成上述方法的步骤。具体地，该计算机可读存储介质上存储有计算机程序，计算机程序被处理器601执行时实现如上述方法实施例100的各步骤。
可以理解的是，本公开的一些实施例描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现，处理单元可以实现在一个或多个专用集成电路(Application Specific Integrated Circuits，ASIC)、数字信号处理器(Digital Signal Processing，DSP)、数字信号处理终端设备(DSP Device，DSPD)、可编程逻辑终端设备(Programmable Logic Device，PLD)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本申请所述功能的其它电子单元或其组合中。
对于软件实现，可通过执行本公开的一些实施例所述功能的模块(例如过程、函数等)来实现本公开的一些实施例所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。
终端设备600能够实现前述实施例中终端设备实现的各个过程，为避免重复，这里不再赘述。
本公开的一些实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现上述方法实施例100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，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，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所述的方法。
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 (14)

  1. 一种包数据汇聚协议PDCP重复duplication的配置方法，包括：
    终端设备确定副链路SL PDCP duplication的配置信息；
    根据所述配置信息进行SL PDCP duplication配置。
  2. 如权利要求1所述的方法，其中，当所述终端设备为SL发送终端设备时，
    所述SL PDCP duplication的配置信息由网络设备、SL资源调度终端设备或SL接收终端设备发送给所述SL发送终端设备，或者，
    所述SL PDCP duplication的配置信息由所述SL发送终端设备和所述SL接收终端设备预先约定。
  3. 如权利要求1所述的方法，其中，当所述终端设备为SL接收终端设备时，
    所述SL PDCP duplication的配置信息由网络设备、SL资源调度终端设备或SL发送终端设备发送给所述SL接收终端设备，或者，
    所述SL PDCP duplication的配置信息由所述SL发送终端设备和所述SL接收终端设备预先约定。
  4. 如权利要求1所述的方法，其中，所述SL PDCP duplication的配置信息包括如下至少一种或组合：
    第一配置信息，用于指示激活或去激活PDCP duplication；
    第二配置信息，用于指示PDCP duplication采用的无线接入技术；
    第三配置信息，用于指示PDCP duplication中PDCP采用的无线接入技术；
    第四配置信息，用于指示PDCP duplication采用的逻辑信道标识LCID；
    第五配置信息，用于指示PDCP duplication采用的载波信息；
    第六配置信息，用于指示PDCP duplication采用的传输分支个数；
    第七配置信息，用于指示PDCP duplication采用的传输带宽部分BWP；
    第八配置信息，用于指示PDCP duplication采用的传输资源池。
  5. 根据权利要求1至4任一项所述的方法，其中，所述SL PDCP  duplication的配置信息通过广播发送；或者，通过控制信道发送；或者，通过数据信道发送。
  6. 如权利要求1所述的方法，其中，所述终端设备确定SL PDCP duplication的配置信息包括：
    所述终端设备根据业务属性、逻辑信道优先级和信道条件中的至少一种或组合确定SL PDCP duplication的配置信息。
  7. 如权利要求4所述的方法，其中，所述第四配置信息包含至少两个LCID，
    所述至少两个LCID由同一媒体接入控制MAC实体配置，或者
    所述至少两个LCID由不同的MAC实体配置。
  8. 如权利要求1至7任一项所述的方法，其中，所述SL PDCP duplication采用至少两种无线接入技术。
  9. 如权利要求8所述的方法，其中，所述至少两种无线接入技术包括第一无线接入技术和第二无线接入技术，其中，
    所述第一无线接入技术对应的第一逻辑信道及所述第二无线接入技术对应的第二逻辑信道由同一MAC实体配置；和/或
    所述第一逻辑信道对应的第一混合自动重传请求HARQ进程及所述第二逻辑信道对应的第二HARQ进程由所述同一MAC实体配置。
  10. 如权利要求8所述的方法，其中，所述至少两种无线接入技术包括第一无线接入技术和第二无线接入技术，其中，
    所述第一无线接入技术的第一逻辑信道对应于第一MAC实体；所述第二无线接入技术的第二逻辑信道对应于第二MAC实体，和/或
    所述第一无线接入技术的第一HARQ进程对应于所述第一MAC实体；所述第二无线接入技术的第二HARQ进程对应于所述第二MAC实体，其中，
    所述第一MAC实体和所述第二MAC实体不同。
  11. 如权利要求10所述的方法，其中，
    所述第一逻辑信道的数量为至少一个；和/或
    所述第二逻辑信道的数量为至少一个。
  12. 一种终端设备，包括：
    确定模块，用于确定SL PDCP duplication的配置信息；
    配置模块，用于根据所述配置信息进行SL PDCP duplication配置。
  13. 一种终端设备，包括：存储器、处理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PDCP duplication的配置方法的步骤。
  14. 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有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至11中任一项所述的PDCP duplication的配置方法的步骤。
PCT/CN2019/106676 2018-09-27 2019-09-19 Pdcp重复的配置方法和终端设备 WO2020063443A1 (zh)

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