WO2020206582A1 - 一种用于中继通信的方法和装置 - Google Patents

一种用于中继通信的方法和装置 Download PDF

Info

Publication number
WO2020206582A1
WO2020206582A1 PCT/CN2019/081703 CN2019081703W WO2020206582A1 WO 2020206582 A1 WO2020206582 A1 WO 2020206582A1 CN 2019081703 W CN2019081703 W CN 2019081703W WO 2020206582 A1 WO2020206582 A1 WO 2020206582A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
relay
information
message
rrc connection
Prior art date
Application number
PCT/CN2019/081703
Other languages
English (en)
French (fr)
Inventor
李晨琬
李振宇
王宇晨
吴毅凌
王静
Original Assignee
华为技术有限公司
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.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2019/081703 priority Critical patent/WO2020206582A1/zh
Priority to CN201980093378.1A priority patent/CN113508639B/zh
Publication of WO2020206582A1 publication Critical patent/WO2020206582A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user

Definitions

  • This application relates to the field of communications, and more specifically, to a method and device for relay communication.
  • radio resource control (RRC) signaling transmission needs to pass through a backhaul link (backhaul, BH), and the signaling overhead is relatively large.
  • RRC radio resource control
  • This application provides a method and device for relay communication, which can reduce signaling overhead.
  • a method for relay communication includes: acquiring capability information from a first terminal, where the capability information is used to indicate that the first terminal has a relay capability; and sending a configuration to the first terminal Information, the configuration information is used to configure the first terminal to have a relay function.
  • the access network device When the access network device receives the capability information of the first terminal with the relay function, it may send configuration information to the first terminal to configure the first terminal as a terminal with the relay function, so that the first terminal can As a relay node, it relays communication between other terminals and the access network device. In this way, compared with the access network device as a relay node, the embodiment of the present application transmits RRC signaling through the backhaul link, which saves signaling overhead.
  • the configuration information includes the cell access network temporary identification C-RNTI resource pool, the number of hops from the access network device, the maximum relay transmission power, group hopping configuration, access control parameters, and coverage At least one of the threshold range, power ramp parameters, cell identity, or list of available carriers.
  • the configuration information can be used by the base station to control the working status of the relay node and allocate the radio resources that the relay node can use.
  • the carrier index indicates the carrier that the relay can schedule.
  • the power configuration information can be used to power the relay and between each node. Control to avoid interference.
  • the cell identity can be used for verification by access network equipment during UE reconstruction.
  • the method further includes: receiving a first message from the second terminal, the first message including information in an RRC connection request message and information in an RRC connection complete message, the RRC connection The completion message is used to instruct the third terminal to complete the RRC connection with the second terminal, the RRC connection request message is used to instruct the third terminal to request the establishment of the RRC connection with the second terminal, and the first The third terminal is a child node of the second terminal.
  • the third terminal wants to connect to the second terminal, it can send an RRC connection request message to the second terminal, and receive the RRC connection establishment message sent by the second terminal, and complete the RRC connection with the second terminal. After that, an RRC connection complete message is sent to the second terminal.
  • the second terminal may send a first message to the access network device, where the first message includes the information in the second RRC connection request message and the information in the first RRC connection complete message, which is different from sending the RRC connection request separately.
  • the information in the message and the information in the RRC connection complete message can save signaling overhead when passing through the backhaul link between the first terminal and the access network device.
  • the first message further includes a relay identifier, which is used to indicate a terminal with a relay function
  • the method further includes: adding the relay identifier in the first message to the first message.
  • a routing list generates a second routing list, and the first routing list includes relay identifiers of all nodes traversed from the second terminal to the access network device.
  • the relay identifier is used to identify a terminal with a relay function.
  • the access network device can add the relay identifier of the terminal to the first routing list to generate a second routing list, that is, the access network device can learn more paths for communication, thereby helping to improve communication efficiency.
  • the method further includes: sending instruction information to the terminal corresponding to each relay identifier included in the first routing list, where the instruction information is used to indicate that the relay identifier in the first message indicates The third terminal is a child node of the second terminal.
  • the access network device may send instruction information to the terminal corresponding to each relay identifier (which may be a relay identifier corresponding to a terminal other than the third terminal) in the first routing list to inform that the third terminal has joined In the first routing list, and the third terminal is a child node of the second terminal, so that each terminal learns more paths, thereby improving communication efficiency.
  • each relay identifier which may be a relay identifier corresponding to a terminal other than the third terminal
  • the method further includes: sending downlink information to a fourth terminal, where the downlink information includes a terminal identifier of the fourth terminal and a relay identifier of the fifth terminal, and the fourth terminal is the fifth terminal.
  • the child node of the terminal is not limited to: sending downlink information to a fourth terminal, where the downlink information includes a terminal identifier of the fourth terminal and a relay identifier of the fifth terminal, and the fourth terminal is the fifth terminal. The child node of the terminal.
  • the access network equipment When the access network equipment sends to a terminal that does not have a relay function, it needs to carry the terminal identification of the terminal and the relay identification of the relay node that hops on the terminal in the downlink information. For the relay node, the amount of data storage is small. , Reducing the storage capacity requirements of the relay node.
  • the method further includes: the access network device may further send downlink information to the seventh terminal, where the downlink information includes the relay identifier of the seventh terminal.
  • the downlink routing information only contains the relay identifier of the terminal, which saves signaling overhead.
  • the method further includes: the access network device receives uplink information, where the uplink information includes the terminal identifier of the terminal.
  • the uplink information can carry the terminal identifier of the terminal, so that the access network device can identify which terminal the uplink information belongs to.
  • the access network device receives a relay release request, and the relay release request is used to request the terminal to release the relay function.
  • the terminal can send a relay release request to the access network device, and the access network device sends the release information according to the release relay request, so that the access network device can release the relay function of the terminal when requested by the terminal, thereby Realize the flexible management of the terminal's relay function.
  • the method further includes: sending release information to the sixth terminal, where the release information is used to instruct the sixth terminal to release the configuration for the relay function, and the sixth terminal is the first terminal, At least one of the second terminal, the third terminal, and the fifth terminal.
  • the access network device can send release information to a certain terminal (for example, the sixth terminal). After the sixth terminal receives the release information, it releases the relay function according to the release information to become a normal terminal, thereby reducing the power consumption of the terminal. .
  • the method before sending the configuration information to the first terminal, the method further includes: receiving a relay function activation request, where the relay function activation request is used to request activation of the relay function of the first terminal .
  • the first terminal may also send a relay function activation request to the access network device, and the access network device starts configuring the first terminal as a terminal with a relay function according to the relay function activation request, so that the first terminal needs When the relay function is turned on, the relay function is configured for the first terminal again to avoid resource waste.
  • a method for relay communication includes: sending capability information to an access network device, the capability information being used to indicate that the first terminal has a relay capability; Receiving configuration information, where the configuration information is used to configure the first terminal to have a relay function.
  • the first terminal sends capability information indicating that the first terminal has a relay function to the access network device, and receives configuration information sent by the first terminal from the access network device, and then configures the first terminal according to the configuration information It is a terminal with a relay function, so that the first terminal can act as a relay node and can relay communications between other terminals and the access network device. Therefore, compared with the access network device acting as a relay node to transmit RRC signaling through the backhaul link, the embodiment of the present application saves signaling overhead.
  • the configuration information includes the cell access network temporary identification C-RNTI resource pool, the number of hops from the access network device, the maximum relay transmission power, group hopping configuration, access control parameters, and coverage At least one of the threshold range, power ramp parameters, cell identity, or list of available carriers.
  • the configuration information can be used by the base station to control the working status of the relay node and allocate the radio resources that the relay node can use.
  • the carrier index indicates the carrier that the relay can schedule.
  • the power configuration information can be used to power the relay and between each node. Control to avoid interference.
  • the cell identity can be used for verification by access network equipment during UE reconstruction.
  • an RRC connection request message is received from a third terminal, where the RRC connection request message is used to request the establishment of an RRC connection with the second terminal, and the third terminal is the second terminal.
  • a child node of the terminal sending an RRC connection establishment message to the third terminal according to the RRC connection request message; receiving an RRC connection complete message from the third terminal, where the RRC connection complete message is used to instruct the third terminal Complete the RRC connection with the second terminal; send a first message to the access network device, where the first message includes information in the RRC connection request message and information in the RRC connection complete message , The first message also includes the relay identifier of the third terminal.
  • the third terminal wants to connect to the second terminal, it can send an RRC connection request message to the second terminal, and receive the RRC connection establishment message sent by the second terminal, and complete the RRC connection with the second terminal. After that, an RRC connection complete message is sent to the second terminal.
  • the second terminal may send a first message to the access network device, and the first message includes the information in the second RRC connection request message and the information in the first RRC connection complete message. This is compared with sending the RRC connection request separately.
  • the information in the message and the information in the RRC connection complete message can save signaling overhead when passing through the backhaul link between the first terminal and the access network device.
  • the method before receiving the second RRC connection request message from the second terminal, the method further includes: receiving a random access preamble from the third terminal; sending a random access response to the third terminal,
  • the random access response includes a temporary C-TNTI identifier, the temporary C-TNTI identifier is the first C-RNTI identifier in the C-RNTI resource pool, and the first C-RNTI identifier is used as a relay for the third terminal Logo.
  • the third terminal Before the third terminal wants to connect to the second terminal, it can send random access to the second terminal, and the second terminal sends a random access response message to the third terminal.
  • the random access response message may include the slave C-RNTI The temporary C-RNTI selected for the third terminal in the resource pool.
  • the third terminal communicates with the second terminal through the temporary C-RNTI. After the contention is resolved, the temporary C-RNTI is changed to the C-RNTI as the second terminal.
  • the method further includes: receiving indication information, where the indication information is used to indicate that the third terminal is a child node of the second terminal.
  • the access network device may send instruction information to the terminal corresponding to each relay identifier (which may be a relay identifier corresponding to a terminal other than the third terminal) in the first routing list to inform that the third terminal has joined In the first routing list, and the third terminal is a child node of the second terminal, so that each terminal learns more paths, thereby improving communication efficiency.
  • each relay identifier which may be a relay identifier corresponding to a terminal other than the third terminal
  • the method further includes: receiving release information; and releasing the configuration for the relay function according to the release information.
  • the terminal After receiving the release information, the terminal releases the relay function according to the release information to become a normal terminal, thereby reducing the power consumption of the terminal.
  • the method before receiving the configuration information from the access network device, the method further includes: sending a relay function activation request, the relay function activation request being used to request activation of the Describe the relay function of the first terminal.
  • the first terminal may also send a relay function activation request to the access network device, and the access network device starts configuring the first terminal as a terminal with a relay function according to the relay function activation request, so that the first terminal needs When the relay function is turned on, the relay function is configured for the first terminal again to avoid resource waste.
  • a device in a third aspect, is provided, and the device may be an access network device or a chip in the access network device.
  • the device has the function of realizing the above-mentioned first aspect and various possible implementation manners. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the device includes a receiving module and a sending module.
  • the device further includes a processing module.
  • the transceiver module may be, for example, at least one of a transceiver, a receiver, and a transmitter.
  • the receiving module and the transmitting module may include radio frequency circuits or antennas.
  • the processing module may be a processor.
  • the device further includes a storage module, and the storage module may be a memory, for example. When a storage module is included, the storage module is used to store instructions.
  • the processing module is connected to the storage module, and the processing module can execute instructions stored in the storage module or from other instructions, so that the device executes the first aspect described above and various possible implementation methods of communication.
  • the device can be an access network device.
  • the chip when the device is a chip, the chip includes a receiving module and a sending module.
  • the device further includes a processing module.
  • the receiving module and the sending module may be inputs on the chip, for example. /Output interface, pin or circuit, etc.
  • the processing module may be a processor, for example.
  • the processing module can execute instructions so that the chip in the terminal executes the above-mentioned first aspect and any possible implemented communication method.
  • the processing module may execute instructions in the storage module, and the storage module may be a storage module in the chip, such as a register, a cache, and the like.
  • the storage module may also be located in the communication device but outside the chip, such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory) memory, RAM) etc.
  • ROM read-only memory
  • RAM random access memory
  • the processor mentioned in any of the above can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more for controlling the above All aspects of the communication method program execution integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • a device for determining transmission resources may be a terminal or a chip in the terminal.
  • the device has the function of realizing the above-mentioned second aspect and various possible implementation modes. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the device includes a receiving module and a sending module.
  • the device further includes a processing module.
  • the receiving module and the sending module may be at least one of a transceiver, a receiver, and a transmitter, for example, and the transceiver module may include a radio frequency circuit or an antenna.
  • the processing module may be a processor.
  • the device further includes a storage module, and the storage module may be a memory, for example.
  • the storage module is used to store instructions.
  • the processing module is connected to the storage module, and the processing module can execute instructions stored in the storage module or instructions derived from other instructions, so that the device executes the second aspect or any one of the methods described above.
  • the chip when the device is a chip, the chip includes a receiving module and a sending module.
  • the chip further includes a processing module.
  • the receiving module and the sending module may be input/output interfaces, pins or circuits on the chip, for example.
  • the processing module may be a processor, for example.
  • the processing module can execute instructions, so that the chip in the terminal executes the second aspect and any possible implementation communication methods.
  • the processing module may execute instructions in the storage module, and the storage module may be a storage module in the chip, such as a register, a cache, and the like.
  • the storage module may also be located in the communication device but outside the chip, such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory) memory, RAM) etc.
  • ROM read-only memory
  • RAM random access memory
  • the processor mentioned in any of the above can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more for controlling the above All aspects of the communication method program execution integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • a computer storage medium is provided, and program code is stored in the computer storage medium, and the program code is used to instruct instructions to execute the method in the first aspect and any possible implementations thereof.
  • a computer storage medium is provided, and program code is stored in the computer storage medium, and the program code is used to instruct instructions to execute the method in the second aspect and any possible implementations thereof.
  • a computer program product containing instructions which when running on a computer, causes the computer to execute the method in the first aspect described above, or any possible implementation manner thereof.
  • a computer program product containing instructions which when running on a computer, causes the computer to execute the method in the second aspect described above, or any possible implementation manner thereof.
  • a communication system in a ninth aspect, includes a device capable of implementing the methods and various possible designs of the above-mentioned first aspect, and the foregoing device capable of implementing the various methods and various possible designs of the above-mentioned second aspect.
  • Functional device The device capable of implementing the methods and various possible design functions of the foregoing first aspect may be an access network device, and the device having the functions of implementing each method and various possible designs of the foregoing second aspect may be a terminal.
  • a processor configured to be coupled with a memory, and configured to execute the method in the first aspect or any possible implementation manner thereof.
  • a chip in an eleventh aspect, includes a processor and a communication interface.
  • the communication interface is used to communicate with an external device or an internal device.
  • the processor is used to implement any or any of the above-mentioned first aspects. The method in the implementation.
  • the chip may further include a memory in which instructions are stored, and the processor is configured to execute instructions stored in the memory or instructions derived from other sources.
  • the processor is used to implement the first aspect described above, or the method in any possible implementation manner thereof.
  • the chip can be integrated on the access network equipment.
  • a chip in a twelfth aspect, includes a processor and a communication interface.
  • the communication interface is used to communicate with an external device or an internal device.
  • the processor is used to implement the second aspect or any of its possible implementations. Methods.
  • the chip may further include a memory in which instructions are stored, and the processor is configured to execute instructions stored in the memory or instructions derived from other sources.
  • the processor is used to implement the second aspect described above, or the method in any possible implementation manner thereof.
  • the chip can be integrated on the terminal.
  • the access network device may send configuration information to the first terminal to configure the first terminal as a terminal with the relay function, thereby This enables the first terminal to act as a relay node to relay communications between other terminals and the access network device.
  • the embodiment of the present application transmits RRC signaling through the backhaul link, saving The signaling overhead is reduced.
  • Figure 1 is a schematic diagram of a communication system of the present application
  • Figure 2 is a schematic flow chart of a relay communication in a traditional solution
  • FIG. 3 is a schematic flowchart of a method for relay communication according to an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a method for relay communication according to a specific embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a method for relay communication according to another specific embodiment of the present application.
  • FIG. 6 is a schematic flowchart of a method for relay communication according to another specific embodiment of the present application.
  • FIG. 7 is a schematic block diagram of an apparatus for relay communication according to a specific embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of an apparatus for relay communication according to another embodiment of the present application.
  • FIG. 9 is a schematic block diagram of an apparatus for relay communication according to another embodiment of the present application.
  • FIG. 10 is a structural diagram of an apparatus for relay communication according to another embodiment of the present application.
  • FIG. 11 is a schematic diagram of an apparatus for relay communication according to another specific embodiment of the present application.
  • FIG. 12 is a schematic diagram of an apparatus for relay communication according to another specific embodiment of the present application.
  • FIG. 13 is a schematic diagram of an apparatus for relay communication according to another specific embodiment of the present application.
  • FIG. 14 is a schematic diagram of an apparatus for relay communication according to another specific embodiment of the present application.
  • GSM global system for mobile communications
  • CDMA code division multiple access
  • WCDMA broadband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • LTE frequency division duplex FDD
  • TDD LTE Time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • the terminal in the embodiments of the present application may refer to user equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user Device.
  • the terminal can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), and a wireless communication function Handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminals in the future 5G network or terminals in the future evolved public land mobile network (PLMN), etc.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • PLMN personal digital assistant
  • the access network device in the embodiment of the present application may be a device used to communicate with a terminal, and the access network device in the wireless communication system of the access network device may be any device with a wireless transceiver function.
  • the equipment includes, but is not limited to: evolved Node B (eNB), Radio Network Controller (RNC), Node B (Node B, NB), Base Station Controller (BSC) , Base Transceiver Station (BTS), home base station (for example, Home evolved NodeB, or Home Node B, HNB), baseband unit (BBU), wireless fidelity (Wireless Fidelity, WIFI) system Access point (Access Point, AP), wireless relay node, wireless backhaul node, transmission point (transmission point, TP) or transmission and reception point (transmission and reception point, TRP), etc., can also be 5G, such as NR , The gNB in the system, or the transmission point (TRP or TP), one or a group of antenna panels (including multiple antenna panels) of the base station in
  • the access network equipment provides services for the cell
  • the terminal communicates with the access network equipment through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell
  • the cell can It is the cell corresponding to the access network equipment (e.g. base station).
  • the cell can belong to a macro base station or a base station corresponding to a small cell.
  • the small cell here can include: metro cell, micro cell cell), pico cell, femto cell, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.
  • the carrier in the LTE system or the 5G system can have multiple cells working at the same frequency at the same time.
  • the concept of the above-mentioned carrier and the cell can also be considered equivalent.
  • CA carrier aggregation
  • the concept of carrier and cell can be considered to be equivalent.
  • the UE accessing a carrier is equivalent to accessing a cell.
  • the core network device can be connected to multiple access network devices to control the access network device, and can distribute data received from the network side (for example, the Internet) to the access network device.
  • the network side for example, the Internet
  • the access network equipment may include base stations (gNB), such as macro stations, micro base stations, indoor hotspots, and relay nodes, etc.
  • gNB base stations
  • the function is to send radio waves to the terminal, on the one hand, realize downlink data transmission, and on the other hand, On the one hand, it sends scheduling information to control uplink transmission, and receives radio waves sent by the terminal, and receives uplink data transmission.
  • the function of the base station is divided into two parts, called centralized unit (CU)-distributed unit (DU) separation.
  • the CU includes the RRC layer and the PDCP layer of the LTE base station
  • the DU includes the radio link control (RLC) layer and the media access control (MAC) layer of the LTE base station.
  • RLC radio link control
  • MAC media access control
  • the physical (physical, PHY) layer In ordinary 5G base station deployment, CU and DU can be physically connected via optical fiber, and logically, there is a specially defined F1 interface for communication between CU and DU.
  • the CU is mainly responsible for radio resource control and configuration, cross-cell mobility management, and bearer management.
  • DU is mainly responsible for scheduling, physical signal generation and transmission.
  • the relay node in the embodiment of the present application may be a relay base station, such as a micro base station.
  • the relay node can also be a terminal device that provides a relay function.
  • the relay node can also be a relay transceiver node, user terminal equipment (customer premise 3quipment, CPE), relay transceiver, relay agent, relay node (relaying node, RN), transmission and reception point (transmission and reception point, TRP), or a network entity such as a relay TRP (rTRP).
  • the relay nodes can be distributed on the edge of the cell, which can expand the coverage of the access network equipment.
  • the relay node in the embodiment of the present application may be a terminal with a relay function, or an integrated access backhaul (IAB) node.
  • IAB integrated access backhaul
  • the terminal or the access network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory).
  • the operating system may be any one or more computer operating systems that implement business processing through processes, for example, Linux operating system, Unix operating system, Android operating system, iOS operating system, or windows operating system.
  • the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiments of the application do not specifically limit the specific structure of the execution subject of the methods provided in the embodiments of the application, as long as the program that records the codes of the methods provided in the embodiments of the application can be provided according to the embodiments of the application.
  • the execution subject of the method provided in the embodiments of the present application may be a terminal or an access network device, or a functional module in the terminal or the access network device that can call and execute the program.
  • the terminal may also be a terminal in the Internet of Things (IoT) system.
  • IoT Internet of Things
  • Its main technical feature is to connect items through communication technologies and networks. Connect, so as to realize the intelligent network of human-machine interconnection and interconnection of things.
  • the IOT technology can achieve massive connections, deep coverage, and power saving of terminals through, for example, narrowband NB technology.
  • the NB only includes one resource block (resource block, RB), that is, the bandwidth of the NB is only 180KB.
  • the terminals must be discrete in access.
  • the communication method according to the embodiment of the present application can effectively solve the congestion problem of mass terminals of the IOT technology when accessing the network through the NB.
  • the terminal may also include sensors such as smart printers, train detectors, gas stations, etc.
  • the main functions include collecting data (part of the terminal), receiving control information and downlink data of access network equipment, and sending electromagnetic waves to The access network equipment transmits uplink data.
  • computer-readable media may include, but are not limited to: magnetic storage devices (for example, hard disks, floppy disks, or tapes, etc.), optical disks (for example, compact discs (CDs), digital versatile discs (digital versatile discs, DVDs) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • magnetic storage devices for example, hard disks, floppy disks, or tapes, etc.
  • optical disks for example, compact discs (CDs), digital versatile discs (digital versatile discs, DVDs) Etc.
  • smart cards and flash memory devices for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.
  • various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • the term "machine-readable medium” may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
  • various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • the term "machine-readable medium” may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
  • multiple application programs can be run at the application layer.
  • the application program of the corresponding action may be a different application program.
  • the signal may include signaling and/or data.
  • signaling is used for control information transfer
  • data is used for service information transfer.
  • the transmission signal can be understood as the terminal performing uplink transmission and/or the terminal receiving downlink transmission.
  • transmission can refer to both uplink transmission and downlink reception. The following introduces the terms involved in this application:
  • the relay communication system includes access network equipment, relay nodes and terminals.
  • the link between the access network device and the relay device may be called a BH link
  • the link between the relay device and the terminal device may be called an "access (AC) link”.
  • the link between two relay nodes can also be referred to as a "backhaul link”.
  • the communication system of the embodiment of the present application does not limit the number of relay nodes.
  • the communication system may include 4 or 5 relay nodes.
  • C-RNTI Cell radio network temporary identifier
  • the access network device may configure a C-RNTI resource pool for the relay node, and the C-RNTI resource pool may include multiple C-RNTIs.
  • the relay node may select a C-RNTI from the multiple C-RNTIs and allocate it to a lower-level node.
  • the number of relay nodes that the relay node needs to pass through to transmit data from the current node to the access network device is the number of relay nodes that the relay node needs to pass through to transmit data from the current node to the access network device.
  • the cell identifier in the embodiment of the present application may be a cell identifier (identity, ID) or a physical cell identifier (PCI) of the cell to which the first terminal belongs, or a tracking area code (TAC).
  • ID identity
  • PCI physical cell identifier
  • TAC tracking area code
  • the group hopping configuration can be a configuration group hopping configuration that avoids the interference of the neighboring cell demodulating reference signal (DMRS).
  • the set of jump configurations can include cyclic shift of DRMS (cyclic shift of DMRS sequence) and base sequence of DMRS (base sequence for generating DMRS).
  • the relevant parameters of the terminal accessing the access network equipment can all be called access control parameters.
  • a terminal can determine the threshold range within which it can relay.
  • FIG. 1 is a schematic diagram of a communication system of the present application.
  • the communication system in FIG. 1 may include at least one terminal (for example, terminal 10, terminal 20, terminal 30, terminal 40, terminal 50, and terminal 60) and an access network device 70.
  • the access network device 70 is used to provide communication services for the terminal and access the core network.
  • the terminal can access the network by searching for synchronization signals and broadcast signals sent by the access network device 70 to communicate with the network.
  • the terminal 10, the terminal 20, the terminal 30, the terminal 40, and the terminal 60 in FIG. 1 can perform uplink and downlink transmissions with the access network device 70.
  • the access network device 70 may send downlink signals to the terminal 10, the terminal 20, the terminal 30, the terminal 40, and the terminal 60, and may also receive the uplink signal sent by the terminal 10, the terminal 20, the terminal 30, the terminal 40, and the terminal 60.
  • the terminal 40, the terminal 50, and the terminal 60 can also be regarded as a communication system, and the terminal 60 can send downlink signals to the terminal 40 and the terminal 50, and can also receive uplink signals sent by the terminal 40 and the terminal 50.
  • embodiments of the present application may be applied to a communication system including one or more access network devices, and may also be applied to a communication system including one or more terminals, which is not limited in this application.
  • Fig. 2 shows a schematic diagram of relay communication in a conventional scheme.
  • the relay node is usually an access network device
  • the RRC signaling of the relay communication is usually from the terminal to the access network device or the access network device to the access network device, that is, the transmission needs to go through the backhaul link (backhaul, BH).
  • the signaling overhead is relatively large.
  • the routing information between the relay nodes may be the address of the relay node or the access network device identification of the relay node or the terminal identification of the terminal.
  • the terminal identifier may be a tunneling protocol user plane part (GPRS tunneling protocol-user plane, GTP-U)-tunnel endpoint identifier (unnel endpoint identifier, TEID).
  • GTP-U tunneling protocol-user plane
  • TEID tunnelnel endpoint identifier
  • FIG. 3 shows a schematic flowchart of a method for relay communication according to an embodiment of the present application.
  • the access network device obtains capability information from the first terminal, where the capability information is used to indicate that the first terminal has a relay capability. Correspondingly, the first terminal sends the capability information.
  • the terminal may send capability information to the access network device to inform the access network device that it has a relay capability.
  • the terminal has the ability to act as a terminal and also has the ability to act as a relay node.
  • the terminal may also send an indication message to indicate a willingness to become a relay node.
  • the first terminal may send a random access request to the access network device to request access to the access network device.
  • the access network device may send random access response information to the first terminal.
  • the first terminal establishes an RRC connection according to the random access response information, and performs security activation, or performs operations such as communication configuration.
  • the capability information may also include the maximum number of terminals that the first terminal can relay, the number of supported carrier aggregations, or the supported modulation and coding, etc. It should be understood that the terminal capable of relaying may be a terminal in a connected state or a terminal in an idle state.
  • the capability information may also indicate whether the first terminal has a relay capability. That is, regardless of whether the terminal has the relay capability, it needs to report the capability information to the access network device, and the access network device determines whether the first terminal has the relay capability.
  • the capability information may be the capability supported by the sub-link in the relay capability of the first terminal. It may also be other capabilities that need to be indicated to realize the relay function to indicate that the terminal has the relay capability.
  • the terminal has a relay capability may specifically be that the terminal supports an adaptation layer that is set, where the terminal may be used to store routing information or quality of service (quality of service, qos) information.
  • the first terminal may directly send the capability information, or may be implicitly indicated through other information.
  • the first terminal may indicate the capability information of the first terminal through the specific value of the random access preamble, or through The specific resource occupied by the random access preamble is indicated.
  • the explicit sending capability indication may be whether to support the relay capability, the related capabilities required to support the relay capability, and the maximum number of carriers supported.
  • the capability information may also be carried in message 3 during the RRC connection establishment process.
  • the UE can directly transmit the UE capabilities to the base station, and transparently transmits the passing relay nodes, and the base station sends the UE capabilities to the relay after receiving it. This method is suitable for scenarios after security activation, and the relay cannot directly decode the capability information sent by the UE.
  • the UE capability may include whether it has relay capability, access capability, number of supported carriers, and so on.
  • the UE first sends the UE capabilities to the directly connected relay, and the relay forwards it to the access network device.
  • the relay can decode and save the content after receiving the UE capability. This method is suitable for scenarios where security is not activated. Use bearer SRB1bis.
  • the access network device may also receive a relay function activation request from the first terminal.
  • the first terminal may also send a relay function activation request to the access network device, and the access network device starts to configure the first terminal as a terminal with a relay function according to the relay function activation request.
  • the access network device may also determine specific configuration content according to the capability information reported by the first terminal.
  • relay function activation request may be referred to as "IAB node configuration request” or “IAB node activation request” or "IAB configuration request”.
  • the capability information of the first terminal may be carried in the request message, or may be a message sent separately, which is not limited in this application.
  • the access network device sends configuration information to the first terminal, where the configuration information is used to configure the first terminal to have a relay function.
  • the first terminal is a node that can directly communicate with the access network device.
  • the access network device After the access network device receives the capability information of the first terminal, it can send configuration information to the first terminal so that the first terminal It is configured as a terminal with a relay function, so that the first terminal can act as a relay node to relay communication between other terminals and the access network device.
  • the embodiment of the present application passes through the relay node as a relay node.
  • the transmission link transmits RRC signaling, which saves signaling overhead.
  • the terminal when the terminal is configured to have a relay function (for example, the terminal is configured as an IAB node), the terminal may have protocol stacks on both sides, one side is the protocol stack on the relay side, and the other side is the terminal Protocol stack on the side.
  • the connection management of the terminal as the terminal and the connection management of the terminal as the relay node can be performed separately.
  • the configuration of the relay uses the connection management of the relay or IAB node.
  • the reconfiguration or configuration process of the relay is the operation of the relay node, and the terminal configuration uses the connection management of the terminal. Terminal security, bearer configuration, etc.
  • the first terminal may be understood as the first hop relay under the access network device.
  • the access network device may also send rejection indication information to the first terminal, where the rejection indication information is used to indicate rejection of the terminal's request to enable the relay function.
  • the rejection indication may be response information to the relay function activation request. That is, when the access network device generates rejection indication information, there is no need to send configuration information to the first terminal.
  • the refusal indication may be referred to as any one of "IAB (node) configuration refusal message", "IAB (node) activation refusal message” or "IAB function refusal message", and the nodes in parentheses may or may not be present.
  • the access network device When the first terminal sends a relay function start request message, the access network device sends a configuration message to the terminal, and the terminal replies with a response message.
  • the optional access network device can directly send the configuration message without the first terminal requesting.
  • the terminal When the terminal receives the configuration message, it can start the relay function after completing the configuration.
  • the terminal may reply with a configuration completion or response message. Used to indicate that the configuration is complete or the relay function has been enabled.
  • the configuration information may be referred to as an "IAB node configuration message”, and the response message may be referred to as an "IAB node configuration complete message” accordingly.
  • the configuration information is called an "IAB function configuration message”, and the corresponding response message may be called an "IAB function configuration complete message”.
  • IAB configuration message and the corresponding response message can be called "IAB configuration complete message”.
  • the specific configuration process may also be a reconfiguration process, which is not limited in this application.
  • configuration-related information can also be referred to as "reconfiguration information.”
  • the base station may directly initiate the configuration process to the terminal when it does not receive the relay function enable request, that is, the access network device directly sends a configuration message to the first terminal, and the first terminal may send a response to the message after receiving it.
  • the message indicates whether the configuration is successful.
  • the configuration information may include the cell access network temporary identification resource pool, the number of hops from the access network device, the maximum relay transmission power (P-max), group jump configuration, access control parameters, and coverage At least one of threshold range, power ramp parameters, cell identification, or available carrier list.
  • P-max the maximum relay transmission power
  • group jump configuration the access control parameters
  • coverage At least one of threshold range, power ramp parameters, cell identification, or available carrier list.
  • These configuration contents can be used by the base station to control the working status of the relay node and allocate the radio resources that the relay node can use.
  • the carrier index indicates the carrier that the relay can schedule, and the power configuration information can be used for the relay and the communication between each node. Power control to avoid interference, and cell identification can be used for verification by access network equipment during UE reconstruction.
  • the C-RNTI resource pool may include multiple C-RNTIs, and the first terminal may allocate the C-RNTI in the C-RNTI resource pool to a terminal with a relay function that accesses the first terminal.
  • the C-RNTI resource pool may include the first C-RNTI and the last C-RNTI of the multiple C-RNTIs, or directly include the multiple C-RNTIs, which is not limited in this application. In this way, the C-RNTI can be obtained without the UE accessing the base station, and in this way, the unique identifier in the cell under the access network device can be obtained.
  • the list of available carriers includes a set of available carriers allocated by the access network device to the first terminal.
  • the cell identity may be a cell identity (ID) or a physical cell identity of the cell to which the first terminal belongs, or a tracking area code.
  • the group jump configuration may include the cyclic shift of the DRMS (cyclic shift of the DMRS sequence), the base sequence of the DMRS (the base sequence for generating the DMRS), and the group jump configuration may be a configuration to avoid DMRS interference from neighboring cells.
  • the first message may include information in a first RRC connection complete message and information in a second RRC connection request message.
  • the first RRC connection complete message is used to instruct the third terminal to complete the communication with the second terminal.
  • RRC connection, the second RRC connection request message is used to instruct the third terminal to request to establish an RRC connection with the second terminal.
  • the first terminal may also connect to one or more relay nodes to form a multi-hop relay connection, or the identifiers of the multiple relay nodes and the first terminal may form a "routing list".
  • the third terminal wants to connect to the second terminal, it can send an RRC connection request message to the second terminal, and receive the RRC connection establishment message sent by the second terminal, and after completing the RRC connection with the second terminal, send it to the second terminal Send the RRC connection complete message.
  • the second terminal may send a first message to the access network device, and the first message includes the information in the second RRC connection request message and the information in the first RRC connection complete message. This is compared with sending the RRC connection request separately.
  • the information in the message and the information in the RRC connection complete message can save signaling overhead when passing through the backhaul link between the first terminal and the access network device.
  • the third terminal is a child node of the second terminal, that is, the third terminal and the second terminal do not need to be relayed by other devices, and can communicate directly.
  • the second terminal may be a child node of the first terminal or a non-adjacent node below the first terminal, which is not limited in this application.
  • the second RRC connection establishment complete message may include the S-TMSI or random number, the establishment cause value, and the C-RNTI of the UE.
  • the third terminal may send random access to the second terminal, and the second terminal sends a random access response message to the third terminal, and the random access response message may include The temporary C-RNTI selected for the third terminal from the C-RNTI resource pool, the third terminal communicates with the second terminal through the temporary C-RNTI, and the temporary C-RNTI is changed to the C-RNTI after the contention is resolved
  • the terminal identification of the third terminal when the third terminal is configured with a relay function, the identification also serves as the relay identification of the terminal.
  • the second RRC connection establishment complete message may also include a relay identifier of the third terminal, where the relay identifier is used to indicate a terminal with a relay function, that is, the relay identifier of the third terminal Used to identify the third terminal with relay function.
  • the access network device may add the relay identifier of the third terminal to the first routing list to generate a second routing list, where the first routing list includes information from the second terminal to all nodes traversed by the access network device.
  • the subsequent identifications for example, the first terminal identification, the second terminal identification and the third terminal identification.
  • the information in the RRC connection request sent by the terminal and the information in the RRC connection establishment complete message may also be forwarded to the base station by the node with the relay function.
  • the remaining steps reuse the steps in the embodiment. This means that both contention resolution and RRC connection are carried out on the access network equipment, so that the changes to the access network equipment are small.
  • the first routing list also includes the sequence of all nodes traversed by the second terminal to the access network device. Or the first routing list includes the parent-child node relationship between the second terminal and all the nodes passing through the access network device.
  • the relay identifier of the third terminal may be carried in the adaptation layer for identifying or finding or routing to the relay.
  • the relay identifier may be a temporary identifier of the cell access network C-RNTI.
  • the C-RNTI may be allocated by a terminal with a relay function or directly allocated by the access network device for the relay.
  • the access network equipment is addressed through the C-RNTI, which can save signaling overhead compared with addressing using the GTP-U TEID and IP address.
  • the relay identifier configured by the access network device for each terminal with a relay function is unique.
  • the access network device may also send instruction information to the terminal corresponding to each relay identifier (which may be a relay identifier corresponding to a terminal other than the third terminal) included in the first routing list, where the instruction information is To indicate that the third terminal is a child node of the second terminal.
  • each relay identifier which may be a relay identifier corresponding to a terminal other than the third terminal
  • the access network device may send instruction information to the terminal corresponding to each relay identifier (which may be a relay identifier corresponding to a terminal other than the third terminal) in the first routing list to inform the third terminal
  • the terminal is added to the first routing list, and the third terminal is a child node of the second terminal, so that each terminal learns more paths, thereby improving communication efficiency.
  • the specific indication method is: the base station sends the second terminal C-RNTI and the third terminal C-RNTI to other relay nodes. Used to identify the third terminal as a child node of the second terminal.
  • a list can also be sent, which contains the identification of each new relay node and its parent node. That is, multiple new nodes are notified through one message, saving signaling overhead.
  • the second terminal may be referred to as the "parent node" of the third terminal.
  • the access network device can send the instruction information before step 302, or it can occur simultaneously with step 302, or after step 302, or after the terminal has completed the relay function. Qualify.
  • the access network device may also send downlink information to the fourth terminal.
  • the downlink information includes the terminal identifier of the fourth terminal and the relay identifier of the fifth terminal.
  • the fourth terminal is the Child node. These two identifiers are used in the adaptation layer for routing to the fourth terminal.
  • each relay node except for the parent node of the fourth terminal only needs to save the routing information of the relay node, and does not need to save the node identifier where the UE is located, which can greatly reduce the storage overhead of the relay node.
  • the terminal can be found through the identification information of the fourth terminal saved by the fifth terminal.
  • each relay node can store the identity of its child node and the relationship between the identities of all the relay nodes that arrive at the node and the relationship between the nodes, so that the access network equipment can send a certain terminal (for example, When the fourth terminal sends downlink information, the downlink information may include the relay identifier of the last hop relay node (for example, the fifth terminal) of the fourth terminal and the terminal identifier of the fourth terminal.
  • the identification information can be carried in the adaptation layer of the downlink message as routing information.
  • the access network device determines the first-hop relay node connected to the access network device according to the routing list.
  • the first-hop relay node stores the relay identifier of the second-hop relay node, and the first-hop relay node will The downlink information is sent to the second-hop relay node, and is sent in sequence until the downlink information reaches the fifth terminal, and the fifth terminal may send the downlink information to the fourth terminal according to the identity of the fourth terminal.
  • the relay node corresponding to each relay identifier in the routing list stores the relay identifier of the child node. Since each relay node can be used to provide relay services for one or more terminals, access When the network device sends to a terminal that does not have a relay function, it needs to carry the terminal identification of the terminal and the relay identification of the relay node on the terminal in the downlink information. For the relay node, the amount of data storage is small and reduces The requirements for the storage capacity of the relay node are improved.
  • the parent node sends data to the terminal side or terminal of the child node through the relay node side.
  • relay identifier and the terminal identifier of the terminal may be the same or different, which is not limited in this application.
  • the fifth terminal may be the foregoing third terminal.
  • the downlink information may be the aforementioned RRC connection establishment message or other downlink information, which is not limited in this application.
  • the terminal identifier and the relay identifier in the embodiment of the present application may be C-RNTI, S-TMSI, GTP-U TEID, IP address or other identifiers.
  • the access network device can also assign a relay identifier to each relay node, such as a 5-bit identifier, which can be configured when the terminal is configured to enable the relay function, and subsequent routing information can use this identifier to notify other nodes of routing When updating, you can also notify that the logo is released or added.
  • the C-RNTI or other UE identification and the relay identification can also be notified, so that other relay nodes can identify the relay identification.
  • Using the ratio of the newly added relay identifier to the C-RNTI reduces the signaling overhead. For example, the C-RNTI occupies 16 bits, and the newly added identifier can only use 5 bits or 4 bits. For specific routing methods, refer to other embodiments.
  • an embodiment may also be that the downlink routing information only contains the terminal identification of the terminal, and does not need to carry the relay identification of its parent node, so that the transmission overhead reduces the amount of relay identification compared to carrying the relay identification of the parent node. Information, thereby saving signaling overhead.
  • the access network device may also send downlink information to the seventh terminal, where the downlink information includes the relay identifier of the seventh terminal.
  • the downlink information may only include the relay identity of the seventh terminal, that is, there is only the relay identity of the seventh terminal in the adaptation layer . Compared with saving the parent node and the node identifier, the signaling overhead is reduced.
  • the uplink information can carry the terminal identifier of the terminal, so that the access network device can recognize that the uplink information belongs to Which terminal.
  • each relay/IAB node when each relay/IAB node receives data from a child node, the relay/IAB node side receives data from the terminal or the UE side of the lower node.
  • each relay/IAB node sends data to the parent node, it sends data to the relay/IAB node side of the parent node or the base station through the terminal side of the relay/IAB node.
  • the uplink information includes the relay identifier of the terminal.
  • terminal identifier may be carried in the adaptation layer.
  • the uplink information may be the foregoing RRC connection request message or RRC connection complete message, or other information, which is not limited in this application.
  • the access network device may send release information to the terminal with the relay function, where the release information is used to configure the terminal with the relay function to release the relay function.
  • the access network device may send release information to a certain terminal (for example, the sixth terminal), and after receiving the release information, the sixth terminal releases the relay function according to the release information to become a normal terminal. If the sixth terminal is released, the access network equipment should also notify its parent node and the parent node of the parent node, until the node directly connected to the base station, notify it that the terminal with relay function is released, and update the stored Routing information.
  • the release message may include the list information of the released nodes, and is used to notify the relay receiving the message that at least one relay node has released the relay function.
  • the sixth terminal may be at least one of the foregoing first terminal, second terminal, third terminal, and fifth terminal with a relay function.
  • the access network device may also send the release information to the fourth terminal.
  • the terminal may send a relay release request to the access network device, and the access network device sends the release information according to the release relay request, so that the access network device can release the middle of the terminal when requested by the terminal.
  • the relay function realizes the flexible management of the relay function of the terminal.
  • the release information may be carried in the RRC reconfiguration message, or may be carried in the RRC connection release message. If the reconfiguration message is used to release, the parent node of the terminal will know that the relay function is released, but it is still connected to the parent node as a normal UE.
  • the terminal can enter an idle state or a suspended state.
  • the RRC connection release message also includes redirection information, and the redirection information is used to indicate the relay nodes that the terminal can access.
  • the redirection information may include information such as the frequency location of the synchronization signal sent by the relay node.
  • the access network device can send an instruction message to release the relay function to the terminal that has the relay function enabled, or it can become a relay node or an IAB node. After the relay receives the message, it releases the relevant configuration of the relay. Stop relay functions, such as stopping broadcasting system messages, and stopping synchronization signal transmission, etc. Optionally, the node can enter the idle state.
  • the name of the indication message may be "IAB configuration release”, or "IAB function release”, or other names, which are not limited in this application.
  • the access network device may also send routing update instruction information to terminals with relay functions corresponding to other relay identifiers in the routing list.
  • the terminal can delete the terminal whose relay function should be released from the routing list.
  • the indication information may include at least one relay node identifier that is released.
  • the update indication information may include the relay identifier of the terminal that has released the relay function.
  • the access network device may send configuration information to the first terminal, so that the first terminal Configured as a terminal with a relay function, so that the first terminal can act as a relay node to relay communications between other terminals and the access network device.
  • the embodiment of the present application passes through the access network device as a relay node.
  • the backhaul link transmits RRC signaling, which saves signaling overhead.
  • B corresponding to A means that B is associated with A, and B can be determined according to A.
  • determining B according to A does not mean that B is determined only according to A, and B can also be determined according to A and/or other information.
  • FIG. 4 shows a schematic flowchart of a method for relay communication according to another embodiment of the present application.
  • the third terminal sends an RRC connection request message to the second terminal, where the RRC connection request message is used to request the establishment of an RRC connection with the second terminal, and the third terminal is a child of the second terminal. node.
  • the second terminal sends an RRC connection establishment message to the third terminal.
  • the third terminal sends an RRC connection complete message to the second terminal, where the RRC connection complete message is used to instruct the third terminal to complete the RRC connection with the second terminal.
  • the second terminal sends a first message to the access network device, where the first message includes information in the RRC connection request message and information in the RRC connection complete message.
  • the first message further includes the relay identifier of the third terminal.
  • the access network device adds the relay identifier of the third terminal to the first routing list to generate a second routing list.
  • the first routing list includes relay identifiers of all nodes traversed from the second terminal to the access network device, for example, the first terminal identifier, the second terminal identifier, and the third terminal identifier.
  • the first routing list further includes the sequence of all nodes traversed by the second terminal to the access network device.
  • the first routing list includes the parent-child node relationship between the second terminal and all the nodes passing through the access network device.
  • the access network device sends instruction information to the first terminal, where the instruction information is used to indicate that the third terminal is a child node of the second terminal.
  • the access network device may send instruction information to the terminal corresponding to each relay identifier (which may be a relay identifier corresponding to a terminal other than the third terminal) in the first routing list to inform that the third terminal has joined In the first routing list, and the third terminal is a child node of the second terminal, so that each terminal learns more paths, thereby improving communication efficiency.
  • each relay identifier which may be a relay identifier corresponding to a terminal other than the third terminal
  • the third terminal can send the information in the RRC connection request message and the information in the RRC connection complete message to the access network device through a first message, and the first message A message includes the relay identifier of the third terminal, so that the access network device adds the relay identifier of the third terminal to the first routing list to generate a second routing list, and informs the third terminal by sending instruction information to the first terminal.
  • the terminal is added to the first routing list, so that each terminal learns more paths, thereby improving communication efficiency.
  • FIG. 5 shows a schematic flowchart of a method for relay communication according to another embodiment of the present application.
  • the access network device may send downlink information to the second terminal, where the downlink information carries the relay identifier of the second terminal.
  • the access network device may send downlink information to the third terminal, where the downlink information carries the relay identity of the second terminal and the terminal identity of the third terminal.
  • the downlink information may not carry the relay identifier of the second terminal.
  • the third terminal sends uplink information to the access network device, where the uplink information carries the terminal identifier of the third terminal.
  • step 501 does not limit the sequence of step 501, step 502, and step 503.
  • FIG. 6 shows a schematic flowchart of a method for relay communication according to another embodiment of the present application.
  • the access network device obtains capability information.
  • the first terminal receives configuration information sent by the access network device, where the configuration information is used to configure the first terminal to have a relay function.
  • the third terminal sends an RRC connection request message to the second terminal.
  • the second terminal sends an RRC connection establishment message to the third terminal.
  • the third terminal sends an RRC connection complete message to the second terminal.
  • the second terminal sends the first message to the access network device.
  • the access network device adds the relay identifier of the third terminal to the first routing list to generate a second routing list.
  • the access network device sends instruction information to the first terminal, where the instruction information is used to indicate that the third terminal is a child node of the second terminal.
  • the access network device only when the third terminal has a relay function, the access network device sends the instruction information to the first terminal.
  • the access network device may send downlink information to the second terminal, where the downlink information carries the relay identifier of the second terminal.
  • the access network device may send downlink information to the third terminal.
  • the access network device When the access network device sends to the second terminal, it needs to carry the relay identifier of the second terminal and the terminal identifier of the third terminal.
  • the third terminal sends uplink information to the access network device, where the uplink information carries the terminal identifier of the third terminal.
  • a terminal with relay capability (for example, a first terminal) can send capability information to the access network device, so that the access network device configures the terminal with Terminal with relay function.
  • the new terminal (for example, the third terminal) can send the information in the RRC connection request message and the information in the RRC connection complete message to the access network device through a first message, and the first message includes the relay of the third terminal
  • the access network device adds the relay identifier of the third terminal to the first routing list to generate a second routing list, and informs the third terminal that the third terminal has joined the first routing list by sending instruction information to the first terminal .
  • the terminal can transmit uplink information and downlink information with the access network device, which saves signaling overhead.
  • the methods and operations implemented by terminal devices can also be implemented by components (such as chips or circuits) that can be used in terminal devices.
  • the methods and operations implemented by access network devices are also It can be implemented by components (such as chips or circuits) that can be used for access network equipment.
  • each network element such as a transmitting end device or a receiving end device, includes hardware structures and/or software modules corresponding to each function in order to realize the above functions.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the embodiments of the present application can divide the transmitter device or the receiver device into functional modules according to the above method examples.
  • each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software function modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation. The following is an example of using the corresponding functional modules to divide each functional module.
  • the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, rather than corresponding to the embodiments of the present application
  • the implementation process constitutes any limitation.
  • Fig. 7 shows a schematic block diagram of an apparatus 700 for relay communication according to an embodiment of the present application.
  • the apparatus 700 may correspond to the access network device in the embodiment shown in FIG. 3, and may have any function of the access network device in the method.
  • the device 700 includes a receiving module 710 and a sending module 720.
  • the receiving module 710 is configured to obtain capability information from a first terminal, where the capability information is used to indicate that the first terminal has a relay capability;
  • the sending module 720 is configured to send configuration information to the first terminal, where the configuration information is used to configure the first terminal to have a relay function.
  • the configuration information includes the cell access network temporary identification C-RNTI resource pool, the number of hops from the access network device, the maximum relay transmission power, the group jump configuration, the access control parameters, and the threshold range of coverage , At least one of power ramp parameters, cell identification or available carrier list.
  • the receiving module 710 is further configured to receive a first message from the second terminal, where the first message includes information in an RRC connection request message and information in an RRC connection complete message, and the RRC connection is complete
  • the message is used to instruct the third terminal to complete the RRC connection with the second terminal
  • the RRC connection request message is used to instruct the third terminal to request the establishment of an RRC connection with the second terminal
  • the third terminal The terminal is a child node of the second terminal.
  • the first message further includes a relay identifier for indicating a terminal with a relay function
  • the device further includes: a processing module for adding the relay identifier in the first message to The first routing list generates a second routing list, and the first routing list includes the relay identifiers of all nodes traversed from the second terminal to the access network device.
  • the sending module 720 is further configured to send instruction information to the terminal corresponding to each relay identifier included in the first routing list, where the instruction information is used to indicate the first message indicated by the relay identifier in the first message.
  • the third terminal is a child node of the second terminal.
  • the sending module 720 is further configured to send downlink information to the fourth terminal.
  • the downlink information includes the terminal identifier of the fourth terminal and the relay identifier of the fifth terminal, and the fourth terminal is the fifth terminal. Child node.
  • the sending module 720 is further configured to send release information to the sixth terminal, where the release information is used to instruct the sixth terminal to release the configuration for the relay function, and the sixth terminal is the first terminal, the At least one of the second terminal, the third terminal, and the fifth terminal.
  • the receiving module 710 is further configured to receive a relay function activation request before sending the configuration information to the first terminal, where the relay function activation request is used to request to activate the relay function of the first terminal.
  • the access network device when the access network device receives the capability information of the first terminal with the relay function, it may send configuration information to the first terminal, so that the first terminal Configured as a terminal with a relay function, so that the first terminal can act as a relay node to relay communications between other terminals and the access network device.
  • the embodiment of the present application passes through the access network device as a relay node.
  • the backhaul link transmits RRC signaling, which saves signaling overhead.
  • FIG. 8 shows an apparatus 800 for relay communication provided by an embodiment of the present application.
  • the apparatus 800 may be the access network device described in FIG. 7.
  • the device can adopt the hardware architecture shown in Figure 8.
  • the device may include a processor 810 and a transceiver 830.
  • the device may also include a memory 840.
  • the processor 810, the transceiver 830, and the memory 840 communicate with each other through an internal connection path.
  • the related functions implemented by the processing module 830 in FIG. 8 may be implemented by the processor 810, and the related functions implemented by the transceiver module 810 may be implemented by the processor 810 controlling the transceiver 830.
  • the processor 810 may be a general-purpose central processing unit (central processing unit, CPU), microprocessor, application-specific integrated circuit (ASIC), dedicated processor, or one or more It is an integrated circuit that implements the technical solutions of the embodiments of this application.
  • a processor may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).
  • it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processor can be used to control devices used for relay communication (such as base stations, terminals, or chips), execute software programs, and process software programs The data.
  • the processor 810 may include one or more processors, such as one or more central processing units (CPU).
  • processors such as one or more central processing units (CPU).
  • CPU central processing units
  • the CPU may be a single processor.
  • the core CPU can also be a multi-core CPU.
  • the transceiver 830 is used to send and receive data and/or signals, and to receive data and/or signals.
  • the transceiver may include a transmitter and a receiver, the transmitter is used to send data and/or signals, and the receiver is used to receive data and/or signals.
  • the memory 840 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable memory (erasable read only memory, EPROM), and read-only memory.
  • RAM random access memory
  • ROM read-only memory
  • EPROM erasable read only memory
  • read-only memory EPROM
  • a compact disc read-only memory, CD-ROM
  • the memory 840 is used to store related instructions and data.
  • the memory 840 is used to store program codes and data of the access network device, and may be a separate device or integrated in the processor 810.
  • the processor 810 is configured to control the transceiver to perform information transmission with the terminal.
  • the processor 810 is configured to control the transceiver to perform information transmission with the terminal.
  • the apparatus 800 may further include an output device and an input device.
  • the output device communicates with the processor 810 and can display information in a variety of ways.
  • the output device may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector, etc.
  • the input device communicates with the processor 601 and can receive user input in various ways.
  • the input device may be a mouse, a keyboard, a touch screen device, or a sensor device.
  • FIG. 8 only shows a simplified design of the device for relay communication.
  • the device may also contain other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all the access network equipment that can implement this application are included in this application. Within the scope of protection.
  • the apparatus 800 may be a chip, for example, may be a communication chip that can be used in an access network device to implement related functions of the processor 810 in the access network device.
  • the chip can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chips for realizing related functions.
  • the chip may optionally include one or more memories for storing program codes. When the codes are executed, the processor realizes corresponding functions.
  • the embodiment of the present application also provides a device, which may be an access network device or a circuit.
  • the device can be used to perform the actions performed by the access network equipment in the foregoing method embodiments.
  • FIG. 9 shows a schematic block diagram of an apparatus 900 for relay communication according to an embodiment of the present application.
  • the device 900 may correspond to the terminal in the embodiment shown in FIG. 3, and may have any function of the terminal in the method.
  • the device 900 includes a sending module 910 and a receiving module 920.
  • the sending module 910 is configured to send capability information to an access network device, where the capability information is used to indicate that the first terminal has a relay capability;
  • the receiving module 920 is configured to receive configuration information from the access network device, where the configuration information is used to configure the first terminal to have a relay function.
  • the configuration information includes the cell access network temporary identification C-RNTI resource pool, the number of hops from the access network device, the maximum relay transmission power, the group jump configuration, the access control parameters, the threshold range of coverage, At least one of power ramp parameters, cell identification, or available carrier list.
  • the receiving module 920 is further configured to receive an RRC connection request message from a third terminal, where the RRC connection request message is used to request the establishment of an RRC connection with the second terminal, and the third terminal is A child node of the second terminal; the sending module 910 is further configured to send an RRC connection establishment message to the third terminal according to the RRC connection request message; the receiving module 920 is further configured to send a message from the first terminal
  • the three terminals receive an RRC connection complete message, where the RRC connection complete message is used to instruct the third terminal to complete the RRC connection with the second terminal; the sending module 910 is also used to send the message to the access network
  • the device sends a first message, the first message includes the information in the RRC connection request message and the information in the RRC connection complete message, and the first message further includes the relay identifier of the third terminal.
  • the receiving module 920 is further configured to receive a random access preamble from the third terminal; the sending module 910 is also configured to The terminal sends a random access response, the random access response includes a temporary C-TNTI identifier, the temporary C-TNTI identifier is the first C-RNTI identifier in the C-RNTI resource pool, and the first C-RNTI identifier is used as The relay identifier of the third terminal.
  • the receiving module 920 is further configured to receive indication information, where the indication information is used to indicate that the third terminal is a child node of the second terminal.
  • the receiving module 920 is further configured to receive release information; the apparatus further includes a processing module configured to release the configuration for the relay function according to the release information.
  • the sending module 910 is further configured to send a relay function activation request before receiving the configuration information from the access network device, and the relay function activation request is used to request activation of the relay function of the first terminal .
  • the first terminal sends capability information indicating that the first terminal has a relay function to the access network device, and receives the configuration sent by the first terminal from the access network device According to the configuration information, the first terminal is further configured as a terminal with a relay function, so that the first terminal can act as a relay node and can relay communication between other terminals and the access network device. Therefore, compared with the access network device acting as a relay node to transmit RRC signaling through the backhaul link, the embodiment of the present application saves signaling overhead.
  • FIG. 10 shows an apparatus 1000 for relay communication provided by an embodiment of the present application, and the apparatus 1000 may be the terminal described in FIG. 9.
  • the device can adopt the hardware architecture shown in FIG. 10.
  • the device may include a processor 1010 and a transceiver 1020.
  • the device may also include a memory 1030.
  • the processor 1010, the transceiver 1020, and the memory 1030 communicate with each other through an internal connection path.
  • the related functions implemented by the processing module 1020 in FIG. 10 may be implemented by the processor 1010, and the related functions implemented by the transceiver module 1010 may be implemented by the processor 1010 controlling the transceiver 1020.
  • the processor 1010 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), a dedicated processor, or one or more It is an integrated circuit that implements the technical solutions of the embodiments of the present application.
  • a processor may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).
  • it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processor can be used to control devices used for relay communication (such as base stations, terminals, or chips), execute software programs, and process software programs The data.
  • the processor 1010 may include one or more processors, such as one or more central processing units (CPU).
  • processors such as one or more central processing units (CPU).
  • CPU central processing units
  • the CPU may be a single processor.
  • the core CPU can also be a multi-core CPU.
  • the transceiver 1020 is used to send and receive data and/or signals, and to receive data and/or signals.
  • the transceiver may include a transmitter and a receiver, the transmitter is used to send data and/or signals, and the receiver is used to receive data and/or signals.
  • the memory 1030 includes but is not limited to random access memory (RAM), read-only memory (ROM), erasable programmable memory (erasable programmable memory, EPROM), read-only memory A compact disc (read-only memory, CD-ROM), the memory 1030 is used to store related instructions and data.
  • the memory 1030 is used to store program codes and data of the terminal, and may be a separate device or integrated in the processor 1010.
  • the processor 1010 is used to control the transceiver to perform information transmission with the terminal.
  • the processor 1010 is used to control the transceiver to perform information transmission with the terminal.
  • the apparatus 1000 may further include an output device and an input device.
  • the output device communicates with the processor 1010 and can display information in a variety of ways.
  • the output device may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector, etc.
  • the input device communicates with the processor 901 and can receive user input in a variety of ways.
  • the input device may be a mouse, a keyboard, a touch screen device, or a sensor device.
  • FIG. 10 only shows a simplified design of an apparatus for relay communication.
  • the device may also contain other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all terminals that can implement this application are within the protection scope of this application. within.
  • the device 1000 may be a chip, for example, a communication chip that can be used in a terminal to implement related functions of the processor 1010 in the terminal.
  • the chip can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chips for realizing related functions.
  • the chip may optionally include one or more memories for storing program codes. When the codes are executed, the processor realizes corresponding functions.
  • the embodiment of the present application also provides a device, which may be a terminal or a circuit.
  • the device can be used to perform the actions performed by the terminal in the foregoing method embodiments.
  • FIG. 11 shows a simplified structural diagram of a terminal. It is easy to understand and easy to illustrate.
  • the terminal uses a mobile phone as an example.
  • the terminal includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
  • the processor is mainly used to process the communication protocol and communication data, control the terminal, execute the software program, and process the data of the software program.
  • the memory is mainly used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of baseband signal and radio frequency signal and the processing of radio frequency signal.
  • the antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of terminals may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • only one memory and processor are shown in FIG. 11. In actual end products, there may be one or more processors and one or more memories.
  • the memory may also be referred to as a storage medium or storage device.
  • the memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.
  • the antenna and radio frequency circuit with the transceiver function may be regarded as the transceiver unit of the terminal, and the processor with the processing function may be regarded as the processing unit of the terminal.
  • the terminal includes a transceiver unit 1110 and a processing unit 1120.
  • the transceiver unit may also be referred to as a transceiver, a transceiver, a transceiver, and so on.
  • the processing unit may also be called a processor, a processing board, a processing module, a processing device, and so on.
  • the device for implementing the receiving function in the transceiver unit 1110 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiver unit 1110 as the sending unit, that is, the transceiver unit 1110 includes a receiving unit and a sending unit.
  • the transceiver unit may sometimes be called a transceiver, a transceiver, or a transceiver circuit.
  • the receiving unit may sometimes be called a receiver, receiver, or receiving circuit.
  • the transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.
  • transceiving unit 1110 is used to perform the sending and receiving operations on the terminal side in the foregoing method embodiment, and the processing unit 1120 is used to perform other operations on the terminal except the transceiving operation in the foregoing method embodiment.
  • the processing unit 1120 is configured to execute processing steps on the terminal side.
  • the transceiver unit 1110 is configured to perform the transceiver operations in step 301 and/or step 302 in FIG. 3, and/or the transceiver unit 1110 is also configured to perform other transceiver steps on the terminal side in the embodiment of the present application.
  • the chip When the communication device is a chip, the chip includes a transceiver unit and a processing unit.
  • the transceiver unit may be an input/output circuit or a communication interface;
  • the processing unit is a processor or microprocessor or integrated circuit integrated on the chip.
  • the device shown in FIG. 12 can also be referred to.
  • the device can perform functions similar to the processor 1110 in FIG. 11.
  • the device includes a processor 1201, a data sending processor 1203, and a data receiving processor 1205.
  • the processing module in the foregoing embodiment may be the processor 1201 in FIG. 12, and completes corresponding functions.
  • the receiving module in the foregoing embodiment may be the receiving data processor 1205 in FIG. 12, and the sending module may be the sending data processor 1203 in FIG. 12.
  • the channel encoder and the channel decoder are shown in FIG. 12, it can be understood that these modules do not constitute a restrictive description of this embodiment, and are only illustrative.
  • the processing device 1300 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem.
  • the communication device in this embodiment can be used as the modulation subsystem therein.
  • the modulation subsystem may include a processor 1303 and an interface 1304.
  • the processor 1303 completes the function of the processing module
  • the interface 1304 completes the function of the above-mentioned receiving module or sending module.
  • the modulation subsystem includes a memory 1306, a processor 1303, and a program stored in the memory and capable of running on the processor. When the processor executes the program, the program described in the first to fifth embodiments is implemented. method.
  • the memory 1306 can be non-volatile or volatile, and its location can be located inside the modulation subsystem or in the processing device 1300, as long as the memory 1306 can be connected to the The processor 1303 is fine.
  • the device 1400 includes one or more radio frequency units, such as a remote radio unit (RRU) 1410 and one Or multiple baseband units (BBU) (also referred to as digital units, DU) 1420.
  • the RRU 1410 may be called a transceiver module, which corresponds to the foregoing receiving module and sending module.
  • the transceiver module may also be called a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 1411 and Radio frequency unit 1412.
  • the RRU 1410 part is mainly used for sending and receiving of radio frequency signals and conversion of radio frequency signals and baseband signals, for example, for sending instruction information to terminal equipment.
  • the 1410 part of the BBU is mainly used for baseband processing and control of the base station.
  • the RRU 1410 and the BBU 1420 may be physically set together, or may be physically separated, that is, a distributed base station.
  • the BBU 1420 is the control center of the base station, and may also be called a processing module, which may correspond to the processing module 920 in FIG. 9, and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, and spreading.
  • the BBU processing module
  • the BBU may be used to control the base station to execute the operation procedure of the access network device in the foregoing method embodiment, for example, to generate the foregoing indication information.
  • the BBU 1420 may be composed of one or more single boards, and multiple single boards may jointly support a radio access network (such as an LTE network) of a single access standard, or support different access standards. Wireless access network (such as LTE network, 5G network or other networks).
  • the BBU 1420 also includes a memory 1421 and a processor 1422.
  • the memory 1421 is used to store necessary instructions and data.
  • the processor 1422 is configured to control the base station to perform necessary actions, for example, to control the base station to execute the operation procedure of the access network device in the foregoing method embodiment.
  • the memory 1421 and the processor 1422 may serve one or more single boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
  • the access network equipment is not limited to the above forms, and may also be in other forms: for example: including BBU and adaptive radio unit (ARU), or BBU and active antenna unit (AAU); also It can be customer premises equipment (CPE), or other forms, which are not limited in this application.
  • BBU and adaptive radio unit ARU
  • BBU and active antenna unit AAU
  • CPE customer premises equipment
  • a computer-readable storage medium is provided, and an instruction is stored thereon, and the method in the foregoing method embodiment is executed when the instruction is executed.
  • a computer program product containing instructions is provided, and when the instructions are executed, the method in the foregoing method embodiment is executed.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk, SSD)) etc.
  • the processor may be an integrated circuit chip with signal processing capabilities.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the above-mentioned processor 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 Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA ready-made programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electronic Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic random access memory
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory synchronous DRAM, SDRAM
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous link dynamic random access memory synchronous link DRAM, SLDRAM
  • direct memory bus random access memory direct rambus RAM, DR RAM
  • At least one refers to one or more, and “multiple” refers to two or more.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, both A and B exist, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects are in an "or” relationship.
  • "The following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or plural items (a).
  • at least one item (a) of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .
  • component used in this specification are used to denote computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution.
  • the component may be, but is not limited to, a process, processor, object, executable file, thread of execution, program, and/or computer running on the processor.
  • application running on the computing device and the computing device can be components.
  • One or more components may reside in processes and/or threads of execution, and components may be located on one computer and/or distributed among two or more computers.
  • these components can be executed from various computer readable media having various data structures stored thereon.
  • the component may be based on, for example, a signal having one or more data packets (such as data from two components interacting with another component in a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through signals) Communicate through local and/or remote processes.
  • a signal having one or more data packets (such as data from two components interacting with another component in a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through signals) Communicate through local and/or remote processes.
  • a and/or B can mean: A alone exists, and both A and B exist. , There are three cases of B alone. Among them, the presence of A or B alone does not limit the number of A or B. Taking the existence of A alone as an example, it can be understood as having one or more A.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • 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, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or an access network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other media that can store program code .

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本申请提供了一种用于中继通信的方法和装置。本实施例提供的方法和装置可以应用于通信系统，例如V2X、LTE-V、V2V、车联网、MTC、IoT、LTE-M，或M2M等。接入网设备在接收到具有中继功能的第一终端的能力信息，可以向该第一终端发送配置信息，以将该第一终端配置为具有中继功能的终端，从而使得第一终端能够作为中继节点中继其他终端和该接入网设备之间的通信，这样本申请实施例相对于接入网设备作为中继节点通过回传链路传输RRC信令，节省了信令开销。

Description

一种用于中继通信的方法和装置 技术领域
本申请涉及通信领域，更具体地，涉及一种用于中继通信的方法和装置。
背景技术
在存在建筑物阻挡的场景中，通常需要引入多跳传输，即接入网设备和终端的通信需要通过两跳或两跳以上的无线连接。但是考虑到业务数据的特性通常为突发性的小包业务，因此如何减少业务数据以外的信令开销十分必要。
传统方案中，无线资源控制(radio resource control，RRC)信令传输需要经过回传链路(back haul，BH)，信令开销比较大。
发明内容
本申请提供一种用于中继通信的方法和装置，能够减少信令开销。
第一方面，提供了一种用于中继通信的方法，该方法包括:从第一终端获取能力信息，该能力信息用于指示该第一终端具有中继能力；向该第一终端发送配置信息，该配置信息用于配置该第一终端具有中继功能。
接入网设备在接收到具有中继功能的第一终端的能力信息，可以向该第一终端发送配置信息，以将该第一终端配置为具有中继功能的终端，从而使得第一终端能够作为中继节点中继其他终端和该接入网设备之间的通信，这样本申请实施例相对于接入网设备作为中继节点通过回传链路传输RRC信令，节省了信令开销。
在一些可能的实现方式中，该配置信息包括小区接入网络临时标识C-RNTI资源池、距离接入网设备的跳数、中继发送最大功率、组跳转配置、接入控制参数、覆盖的阈值范围、功率爬坡参数、小区标识或可用载波列表中的至少一项。
配置信息可以用于基站控制中继节点工作情况以及分配中继节点可以使用的无线资源，比如载波索引指示中继可以调度的载波，功率配置信息可以用于对中继以及各个节点之间进行功率控制，避免干扰，小区标识可以用于UE重建时使用用于接入网设备进行校验。
在一些可能的实现方式中，该方法还包括：从所述第二终端接收第一消息，所述第一消息包括RRC连接请求消息中的信息和RRC连接完成消息中的信息，所述RRC连接完成消息用于指示第三终端完成与所述第二终端的RRC连接，所述RRC连接请求消息用于指示所述第三终端请求建立与所述第二终端之间的RRC连接，所述第三终端为所述第二终端的子节点。
本申请实施例中，第三终端想要连接到第二终端，可以向第二终端发送RRC连接请求消息，以及接收第二终端发送的RRC连接建立消息，并在完成与第二终端的RRC连接之后，向第二终端发送RRC连接完成消息。第二终端可以向接入网设备发送第一消息， 该第一消息中包括该第二RRC连接请求消息中的信息和第一RRC连接完成消息中的信息，这样相对于分别单独发送RRC连接请求消息中的信息和RRC连接完成消息中的信息，在通过第一终端和接入网设备之间的回传链路时，能够节省信令开销。
在一些可能的实现方式中，该第一消息还包括中继标识，该中继标识用于指示具有中继功能的终端，该方法还包括：将该第一消息中的中继标识添加到第一路由列表生成第二路由列表，该第一路由列表包括从该第二终端到接入网设备遍历的所有节点的中继标识。
该中继标识用于标识具有中继功能的终端。接入网设备可以将该终端的中继标识添加到第一路由列表生成第二路由列表，即接入网设备能够获知更多的路径进行通信，从而有助于提高通信效率。
在一些可能的实现方式中，该方法还包括：向该第一路由列表包括的每个中继标识对应的终端发送指示信息，该指示信息用于指示该第一消息中的中继标识指示的第三终端为该第二终端的子节点。
接入网设备可以向该第一路由列表中的每个中继标识(可以是除第三终端的以外的终端对应的中继标识)对应的终端发送指示信息，以告知该第三终端加入到了该第一路由列表中，且该第三终端为第二终端的子节点，以使得每个终端获知更多路径，从而提高通信效率。
在一些可能的实现方式中，该方法还包括：向第四终端发送下行信息，该下行信息包括该第四终端的终端标识和该第五终端的中继标识，该第四终端为该第五终端的子节点。
接入网设备发送给不具有中继功能的终端时，需要在下行信息中携带终端的终端标识和该终端上一跳的中继节点的中继标识，对于中继节点来说数据存储量小，减少了对中继节点的存储能力的要求。
在一些可能的实现方式中，该方法还包括：该接入网设备还可以向第七终端发送下行信息，该下行信息包括第七终端的中继标识。
下行路由信息仅包含终端的中继标识，节省了信令开销。
在一些可能的实现方式中，该方法还包括：该接入网设备接收上行信息，该上行信息包括终端的终端标识。
对于从终端到接入网设备的上行信息，由于上行数据最终都汇聚到接入网设备侧，该上行信息可以携带终端的终端标识，使得接入网设备能够识别该上行信息属于哪个终端。
在一些可能的实现方式中，该接入网设备接收释放中继请求，该释放中继请求用于请求终端进行中继功能释放。
终端可以向接入网设备发送释放中继请求，接入网设备根据该释放中继请求发送该释放信息，这样接入网设备可以在终端请求的情况下，再释放终端的中继功能，从而实现了终端的中继功能的灵活管理。
在一些可能的实现方式中，该方法还包括：向第六终端发送释放信息，该释放信息用于指示该第六终端释放用于中继功能的配置，该第六终端为该第一终端、该第二终端、该第三终端、该第五终端中的至少一项。
接入网设备可以向某一个终端(例如，第六终端)发送释放信息，该第六终端接收到该释放信息后，根据该释放信息释放中继功能成为普通终端，从而减少终端的功耗开销。
在一些可能的实现方式中，在向该第一终端发送该配置信息之前，该方法还包括：接 收中继功能开启请求，该中继功能开启请求用于请求开启该第一终端的中继功能。
第一终端还可以向接入网设备发送中继功能开启请求，接入网设备根据该中继功能开启请求启动将该第一终端配置为具有中继功能的终端，从而在第一终端有需要开启中继功能的情况下，再为第一终端配置中继功能，避免了资源浪费。
第二方面，提供了一种用于中继通信的方法，该方法包括：向接入网设备发送能力信息，该能力信息用于指示该第一终端具有中继能力；从该接入网设备接收配置信息，该配置信息用于配置该第一终端具有中继功能。
第一终端向接入网设备发送用于指示该第一终端具有中继功能的能力信息，并从接入网设备接收该第一终端发送配置信息，进而根据该配置信息将该第一终端配置为具有中继功能的终端，这样第一终端能够作为中继节点可以中继其他终端和该接入网设备之间的通信。因此，本申请实施例相对于接入网设备作为中继节点通过回传链路传输RRC信令，节省了信令开销。
在一些可能的实现方式中，该配置信息包括小区接入网络临时标识C-RNTI资源池、距离接入网设备的跳数、中继发送最大功率、组跳转配置、接入控制参数、覆盖的阈值范围、功率爬坡参数、小区标识或可用载波列表中的至少一项。
配置信息可以用于基站控制中继节点工作情况以及分配中继节点可以使用的无线资源，比如载波索引指示中继可以调度的载波，功率配置信息可以用于对中继以及各个节点之间进行功率控制，避免干扰，小区标识可以用于UE重建时使用用于接入网设备进行校验。
在一些可能的实现方式中，从第三终端接收RRC连接请求消息，所述RRC连接请求消息用于请求建立与所述第二终端之间的RRC连接，所述第三终端为所述第二终端的子节点；根据所述RRC连接请求消息向所述第三终端发送RRC连接建立消息；从所述第三终端接收RRC连接完成消息，所述RRC连接完成消息用于指示所述第三终端完成与所述第二终端之间的RRC连接；向所述接入网设备发送第一消息，所述第一消息包括所述RRC连接请求消息中的信息和所述RRC连接完成消息中的信息，所述第一消息还包括所述第三终端的中继标识。
本申请实施例中，第三终端想要连接到第二终端，可以向第二终端发送RRC连接请求消息，以及接收第二终端发送的RRC连接建立消息，并在完成与第二终端的RRC连接之后，向第二终端发送RRC连接完成消息。第二终端可以向接入网设备发送第一消息，该第一消息中包括该第二RRC连接请求消息中的信息和第一RRC连接完成消息中的信息，这样相对于分别单独发送RRC连接请求消息中的信息和RRC连接完成消息中的信息，在通过第一终端和接入网设备之间的回传链路时，能够节省信令开销。
在一些可能的实现方式中，在从第二终端接收第二RRC连接请求消息之前，该方法还包括：从该第三终端接收随机接入前导码；向该第三终端发送随机接入响应，该随机接入响应包括临时C-TNTI标识，该临时C-TNTI标识为C-RNTI资源池中的第一C-RNTI标识，该第一C-RNTI标识用于作为该第三终端的中继标识。
第三终端想要连接到第二终端之前，可以向第二终端发送随机接入，第二终端向该第三终端发送随机接入响应消息，该随机接入响应消息中可以包括从C-RNTI资源池中为该第三终端选择的临时C-RNTI，第三终端通过该临时C-RNTI与第二终端进行通信，竞争 解决后并将该临时C-RNTI变为C-RNTI，作为该第三终端的终端标识，当第三终端被配置为中继功能时，该标识也作为该终端的中继标识，避免了专门为第三终端分配中继标识，节省了信令开销。
在一些可能的实现方式中，该方法还包括：接收指示信息，该指示信息用于指示该第三终端为第二终端的子节点。
接入网设备可以向该第一路由列表中的每个中继标识(可以是除第三终端的以外的终端对应的中继标识)对应的终端发送指示信息，以告知该第三终端加入到了该第一路由列表中，且该第三终端为第二终端的子节点，以使得每个终端获知更多路径，从而提高通信效率。
在一些可能的实现方式中，该方法还包括：接收释放信息；根据该释放信息，释放用于中继功能的配置。
终端接收到该释放信息后，根据该释放信息释放中继功能成为普通终端，从而减少终端的功耗开销。
在一些可能的实现方式中，所述在从所述接入网设备接收所述配置信息之前，所述方法还包括：发送中继功能开启请求，所述中继功能开启请求用于请求开启所述第一终端的中继功能。
第一终端还可以向接入网设备发送中继功能开启请求，接入网设备根据该中继功能开启请求启动将该第一终端配置为具有中继功能的终端，从而在第一终端有需要开启中继功能的情况下，再为第一终端配置中继功能，避免了资源浪费。
第三方面，提供了一种装置，该装置可以是接入网设备，也可以是接入网设备内的芯片。该装置具有实现上述第一方面，及各种可能的实现方式的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
在一种可能的设计中，该装置包括：接收模块和发送模块，可选地，该装置还包括处理模块，所述收发模块例如可以是收发器、接收器、发射器中的至少一种，该接收模块和发送模块可以包括射频电路或天线。该处理模块可以是处理器。可选地，所述装置还包括存储模块，该存储模块例如可以是存储器。当包括存储模块时，该存储模块用于存储指令。该处理模块与该存储模块连接，该处理模块可以执行该存储模块存储的指令或源自其他的指令，以使该装置执行上述第一方面，及各种可能的实现方式的通信方法。在本设计中，该装置可以为接入网设备。
在另一种可能的设计中，当该装置为芯片时，该芯片包括：接收模块和发送模块，可选地，该装置还包括处理模块，接收模块和发送模块例如可以是该芯片上的输入/输出接口、管脚或电路等。处理模块例如可以是处理器。该处理模块可执行指令，以使该终端内的芯片执行上述第一方面，以及任意可能的实现的通信方法。可选地，该处理模块可以执行存储模块中的指令，该存储模块可以为芯片内的存储模块，如寄存器、缓存等。该存储模块还可以是位于通信设备内，但位于芯片外部，如只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)等。
其中，上述任一处提到的处理器，可以是一个通用中央处理器(CPU)，微处理器， 特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制上述各方面通信方法的程序执行的集成电路。
第四方面，提供了一种确定传输资源的装置，该装置可以是终端，也可以是终端内的芯片。该装置具有实现上述第二方面，及各种可能的实现方式的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
在一种可能的设计中，该装置包括：接收模块和发送模块。可选地，该装置还包括处理模块。所述接收模块和发送模块例如可以是收发器、接收器、发射器中的至少一种，该收发模块可以包括射频电路或天线。该处理模块可以是处理器。
可选地，所述装置还包括存储模块，该存储模块例如可以是存储器。当包括存储模块时，该存储模块用于存储指令。该处理模块与该存储模块连接，该处理模块可以执行该存储模块存储的指令或源自其他的指令，以使该装置执行上述第二方面，或其任意一项的方法。
在另一种可能的设计中，当该装置为芯片时，该芯片包括：接收模块和发送模块，可选地，该芯片还包括处理模块。接收模块和发送模块例如可以是该芯片上的输入/输出接口、管脚或电路等。处理模块例如可以是处理器。该处理模块可执行指令，以使该终端内的芯片执行上述第二方面，以及任意可能的实现的通信方法。
可选地，该处理模块可以执行存储模块中的指令，该存储模块可以为芯片内的存储模块，如寄存器、缓存等。该存储模块还可以是位于通信设备内，但位于芯片外部，如只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)等。
其中，上述任一处提到的处理器，可以是一个通用中央处理器(CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制上述各方面通信方法的程序执行的集成电路。
第五方面，提供了一种计算机存储介质，该计算机存储介质中存储有程序代码，该程序代码用于指示执行上述第一方面，及其任意可能的实现方式中的方法的指令。
第六方面，提供了一种计算机存储介质，该计算机存储介质中存储有程序代码，该程序代码用于指示执行上述第二方面，及其任意可能的实现方式中的方法的指令。
第七方面，提供了一种包含指令的计算机程序产品，其在计算机上运行时，使得计算机执行上述第一方面，或其任意可能的实现方式中的方法。
第八方面，提供了一种包含指令的计算机程序产品，其在计算机上运行时，使得计算机执行上述第二方面，或其任意可能的实现方式中的方法。
第九方面，提供了一种通信系统，该通信系统包括具有实现上述第一方面的各方法及各种可能设计的功能的装置和上述具有实现上述第二方面的各方法及各种可能设计的功能的装置。其中，具有实现上述第一方面的各方法及各种可能设计的功能的装置可以是接入网设备，具有实现上述第二方面的各方法及各种可能设计的功能的装置可以是终端。
第十方面，提供了一种处理器，用于与存储器耦合，用于执行上述第一方面或其任意可能的实现方式中的方法。
第十一方面，提供了一种芯片，芯片包括处理器和通信接口，该通信接口用于与外部 器件或内部器件进行通信，该处理器用于实现上述第一方面中任一方面或其任意可能的实现方式中的方法。
可选地，该芯片还可以包括存储器，该存储器中存储有指令，处理器用于执行存储器中存储的指令或源于其他的指令。当该指令被执行时，处理器用于实现上述第一方面，或其任意可能的实现方式中的方法。
可选地，该芯片可以集成在接入网设备上。
第十二方面，提供了一种芯片，芯片包括处理器和通信接口，该通信接口用于与外部器件或内部器件进行通信，该处理器用于实现上述第二方面或其任意可能的实现方式中的方法。
可选地，该芯片还可以包括存储器，该存储器中存储有指令，处理器用于执行存储器中存储的指令或源于其他的指令。当该指令被执行时，处理器用于实现上述第二方面，或其任意可能的实现方式中的方法。
可选地，该芯片可以集成在终端上。
基于上述技术方案，接入网设备在接收到具有中继功能的第一终端的能力信息，可以向该第一终端发送配置信息，以将该第一终端配置为具有中继功能的终端，从而使得第一终端能够作为中继节点中继其他终端和该接入网设备之间的通信，这样本申请实施例相对于接入网设备作为中继节点通过回传链路传输RRC信令，节省了信令开销。
附图说明
图1是本申请一个通信系统的示意图；
图2是传统方案中一种中继通信的示意性流程图；
图3是本申请一个实施例的用于中继通信的方法的示意性流程图；
图4是本申请一个具体实施例的用于中继通信的方法的示意性流程图；
图5是本申请另一个具体实施例的用于中继通信的方法的示意性流程图；
图6是本申请另一个具体实施例的用于中继通信的方法的示意性流程图；
图7是本申请一个具体实施例的用于中继通信的装置的示意性框图；
图8是本申请另一个实施例的用于中继通信的装置的示意性结构图；
图9是本申请另一个实施例的用于中继通信的装置的示意性框图；
图10是本申请另一个实施例的用于中继通信的装置的结构图；
图11是本申请另一个具体实施例的用于中继通信的装置的示意图；
图12是本申请另一个具体实施例的用于中继通信的装置的示意图；
图13是本申请另一个具体实施例的用于中继通信的装置的示意图；
图14是本申请另一个具体实施例的用于中继通信的装置的示意图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通信(global system for mobile communications，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)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统、未来的第五代(5th generation，5G)系统、新无线(new radio，NR)、设备到设备(device to device，D2D)通信系统或新无线(New Radio，NR)、车对外界的信息交换(vehicle to everything，V2X)、LTE-V、车与车(vehicle to vehicle，V2V)、车联网、机器类型通信(machine-type communications，MTC)、物联网(internet of things，IoT)、LTE-M，机器与机器(machine to communications，M2M)等等。。
本申请实施例中的终端可以指用户设备、接入终端、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。终端还可以是蜂窝电话、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、个人数字助理(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处理设备、车载设备、可穿戴设备，未来5G网络中的终端或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端等，本申请实施例对此并不限定。
本申请实施例中的接入网设备可以是用于与终端通信的设备，该接入网设备无线通信系统中的接入网设备可以是任意一种具有无线收发功能的设备。该设备包括但不限于：演进型节点B(evolved Node B，eNB)、无线网络控制器(Radio Network Controller，RNC)、节点B(Node B，NB)、基站控制器(Base Station Controller，BSC)、基站收发台(Base Transceiver Station，BTS)、家庭基站(例如，Home evolved NodeB，或Home Node B，HNB)、基带单元(BaseBand Unit，BBU)，无线保真(Wireless Fidelity，WIFI)系统中的接入点(Access Point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者发送接收点(transmission and reception point，TRP)等，还可以为5G，如，NR，系统中的gNB，或，传输点(TRP或TP)，5G系统中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(BBU)，或，分布式单元(distributed unit，DU)等。
另外，在本申请实施例中，接入网设备为小区提供服务，终端通过该小区使用的传输资源(例如，频域资源，或者说，频谱资源)与接入网设备进行通信，该小区可以是接入网设备(例如基站)对应的小区，小区可以属于宏基站，也可以属于小小区(small cell)对应的基站，这里的小小区可以包括：城市小区(metro cell)、微小区(micro cell)、微微小区(pico cell)、毫微微小区(femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。
此外，LTE系统或5G系统中的载波上可以同时有多个小区同频工作，在某些特殊场景下，也可以认为上述载波与小区的概念等同。例如在载波聚合(carrier aggregation，CA)场景下，当为UE配置辅载波时，会同时携带辅载波的载波索引和工作在该辅载波的辅小区的小区标识(cell indentification，Cell ID)，在这种情况下，可以认为载波与小区的概念等同，比如UE接入一个载波和接入一个小区是等同的。
核心网设备可以与多个接入网设备连接，用于控制接入网设备，并且，可以将从网络 侧(例如，互联网)接收到的数据分发至接入网设备。
此外，在本申请中，接入网设备可以包括基站(gNB)，例如宏站、微基站、室内热点、以及中继节点等，功能是向终端发送无线电波，一方面实现下行数据传输，另一方面发送调度信息控制上行传输，并接收终端发送的无线电波，接收上行数据传输。
其中，以上列举的终端、接入网设备和核心网设备的功能和具体实现方式仅为示例性说明，本申请并未限定于此。
在NR中，基站的功能被分为两部分，称为集中式单元(centralized unit,CU)-分布式单元(distributed unit,DU)分离。从协议栈的角度来看，CU包括了LTE基站的RRC层和PDCP层，DU包括了LTE基站的无线链路控制(radio link control,RLC)层、媒体访问控制(media access control,MAC)层和物理(physical,PHY)层。在普通的5G基站部署中，CU和DU物理上可以通过光纤连接，逻辑上存在一个专门定义的F1接口，用于CU与DU之间进行通信。从功能的角度来看，CU主要负责无线资源控制与配置，跨小区移动性管理，承载管理等。DU主要负责调度，物理信号生成与发送。
本申请实施例中的中继节点可以是中继基站，例如微基站等。中继节点也可以是一个提供中继功能的终端设备。中继节点还可以是中继收发节点，用户终端设备(customer premise 3quipment，CPE)，中继收发器、中继代理，中继节点(relaying node，RN)，传输接收点(transmission and reception point，TRP)，或者中继传输接收点(relaying TRP，rTRP)等网络实体。具体实现中，中继节点可以分布在小区边缘，可扩大接入网设备的覆盖范围。
可选地，本申请实施例中的中继节点可以是具有中继功能的终端，或者接入回传一体化(integrated access backhaul，IAB)节点。
在本申请实施例中，终端或接入网设备包括硬件层、运行在硬件层之上的操作系统层，以及运行在操作系统层上的应用层。该硬件层包括中央处理器(central processing unit，CPU)、内存管理单元(memory management unit，MMU)和内存(也称为主存)等硬件。该操作系统可以是任意一种或多种通过进程(process)实现业务处理的计算机操作系统，例如，Linux操作系统、Unix操作系统、Android操作系统、iOS操作系统或windows操作系统等。该应用层包含浏览器、通讯录、文字处理软件、即时通信软件等应用。并且，本申请实施例并未对本申请实施例提供的方法的执行主体的具体结构特别限定，只要能够通过运行记录有本申请实施例的提供的方法的代码的程序，以根据本申请实施例提供的方法进行通信即可，例如，本申请实施例提供的方法的执行主体可以是终端或接入网设备，或者，是终端或接入网设备中能够调用程序并执行程序的功能模块。
此外，在本申请实施例中，终端还可以是物联网(internet of things，IoT)系统中的终端，IoT是未来信息技术发展的重要组成部分，其主要技术特点是将物品通过通信技术与网络连接，从而实现人机互连，物物互连的智能化网络。
在本申请实施例中，IOT技术可以通过例如窄带(narrow band)NB技术，做到海量连接，深度覆盖，终端省电。例如，NB只包括一个资源块(resource block，RB)，即，NB的带宽只有180KB。要做到海量接入，必须要求终端在接入上是离散的，根据本申请实施例的通信方法，能够有效解决IOT技术海量终端在通过NB接入网络时的拥塞问题。
此外，在本申请中，终端还可以包括智能打印机、火车探测器、加油站等传感器，主 要功能包括收集数据(部分终端)、接收接入网设备的控制信息与下行数据，并发送电磁波，向接入网设备传输上行数据。
另外，本申请的各个方面或特征可以实现成方法、装置或使用标准编程和/或工程技术的制品。本申请中使用的术语“制品”涵盖可从任何计算机可读器件、载体或介质访问的计算机程序。例如，计算机可读介质可以包括，但不限于:磁存储器件(例如，硬盘、软盘或磁带等)，光盘(例如，压缩盘(compact disc，CD)、数字通用盘(digital versatile disc，DVD)等)，智能卡和闪存器件(例如，可擦写可编程只读存储器(erasable programmable read-only memory，EPROM)、卡、棒或钥匙驱动器等)。另外，本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可包括但不限于，无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。
另外，本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可包括但不限于，无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。
需要说明的是，在本申请实施例中，在应用层可以运行多个应用程序，此情况下，执行本申请实施例的通信方法的应用程序与用于控制接收端设备完成所接收到的数据所对应的动作的应用程序可以是不同的应用程序。
本申请实施例中，信号可以包括信令和/或数据。例如，信令用于控制信息传递，数据用于业务信息传递。进一步，传输信号可以理解为终端进行上行传输，和/或终端接收下行传输。下文中，若无特殊说明，传输既可以指上行发送也可以指下行接收。下面将本申请涉及的术语进行介绍：
BH链路：
中继通信系统中包括接入接入网设备、中继节点和终端。其中，接入接入网设备和中继设备之间的链路可以称为BH链路，中继设备和终端设备之间的链路可以称为“接入(access，AC)链路”。此外，两个中继节点之间的链路也可以称为“回传链路”。
应理解，本申请实施例的通信系统对中继节点的个数不进行限定，例如，通信系统可以包括4个，或5个中继节点。
还应理解，本申请对接入接入网设备和中继节点、两个中继节点之间的链路、以及中继节点和终端之间的链路名称不进行限定。
小区接入网络临时标识(cell radio network temporary identifier，C-RNTI)资源池：
接入网设备可以为中继节点配置C-RNTI资源池，该C-RNTI资源池可以包括多个C-RNTI。中继节点可以从该多个C-RNTI选择C-RNTI分配给下级节点。
距离接入网设备的跳数：
中继节点从当前节点传输数据到接入网设备需要经过的中继节点的数目。
小区标识：
本申请实施例的小区标识可以是第一终端所属的小区的小区标识(identity，ID)或物理小区标识(physical cell identifier，PCI)，或者跟踪区域码(tracking area code，TAC)。
组跳转配置：
组跳转配置可以为避免邻区解调参考信号(demodulating the reference signal，DMRS)干扰的配置组跳转配置。且该组跳转配置可以包括DRMS的循环移位(DMRS序列的循 环移位)，DMRS的基序列(产生DMRS的基序列)。
接入控制参数：
终端接入接入网设备的相关参数都可以称为接入控制参数。
覆盖的阈值范围：
终端作为中继功能的终端，可以确定自己能够中继的阈值范围。
图1是本申请一个通信系统的示意图。图1中的通信系统可以包括至少一个终端(例如终端10、终端20、终端30、终端40、终端50和终端60)和接入网设备70。接入网设备70用于为终端提供通信服务并接入核心网，终端可以通过搜索接入网设备70发送的同步信号、广播信号等接入网络，从而进行与网络的通信。图1中的终端10、终端20、终端30、终端40和终端60可以与接入网设备70进行上下行传输。例如，接入网设备70可以向终端10、终端20、终端30、终端40和终端60发送下行信号，也可以接收终端10、终端20、终端30、终端40和终端60发送的上行信号。
此外，终端40、终端50和终端60也可以看作一个通信系统，终端60可以向终端40和终端50发送下行信号，也可以接收终端40和终端50发送的上行信号。
需要说明的是，本申请实施例可以应用于包括一个或多个接入网设备的通信系统中，也可以应用于包括一个或多个终端的通信系统中，本申请对此不进行限定。
图2示出了传统方案中继通信的示意图。中继节点通常为接入网设备时，中继通信的RRC信令通常为终端到接入网设备或者接入网设备到接入网设备，即传输需要经过回传链路(back haul，BH)，信令开销比较大。其中，中继节点之间的路由信息可以是中继节点的地址或者中继节点的接入网设备标识或者终端的终端标识。
需要说明的是，终端标识可以是隧道协议用户面部分(GPRS tunneling protocol-user plane，GTP-U)-隧道端点标识(unnel endpoint identifier，TEID)。
图3示出了本申请实施例的用于中继通信的方法的示意性流程图。
301，接入网设备从第一终端获取能力信息，该能力信息用于指示第一终端具有中继能力。相应地，第一终端发送该能力信息。
具体地，终端在判断自己可以具有中继功能的情况下，可以向接入网设备发送能力信息以告知接入网设备自己具有中继能力。也就是说，终端具有作为终端的能力，也具有作为中继节点的能力。
应理解，终端除了发送能力信息外，也可以发送一个指示信息用于表示有成为中继节点的意愿。
需要说明的是，在步骤301之前，第一终端可以向接入网设备发送随机接入请求，以请求接入接入网设备。相应地，接入网设备可以向第一终端发送随机接入响应信息。第一终端根据该随机接入响应信息建立RRC连接，以及进行安全激活，或者进行通信配置等操作。
可选地，该能力信息还可以包括该第一终端能够中继终端的最大数目，支持的载波聚合的数目，或者支持的调制编码等。应理解，能够中继的终端可以是处于连接态的终端，也可以是处于空闲态的终端。
在一个实施例中，该能力信息也可以指示该第一终端是否具有中继能力。也就是说，不论终端是否具有中继能力都需要向接入网设备上报能力信息，由接入网设备来判断该第 一终端是否具有中继能力。
在另一个实施例中，能力信息可以为第一终端具有的中继能力中的子链路支持的能力。也可以是其他实现中继功能需要指示的能力，用以指示该终端具有中继能力。
可选地，该终端具有中继能力具体可以是终端支持被设置适配层，在适配层上终端可以用于存储路由信息或者服务质量(quality of service，qos)信息。
可选地，第一终端可以直接发送能力信息，也可以是通过其他信息隐式指示，例如，第一终端通过随机接入前导码的具体取值来指示该第一终端的能力信息，或者通过该随机接入前导码占用的具体资源来指示。显式发送能力指示可以为是否支持中继能力，以及支持中继能力需要的相关能力，支持最大载波数等。
可选地，该能力信息也可以携带在RRC连接建立过程中的消息3中。
具体的UE能力的传输方式有：UE可以直接将UE能力传输给基站，对于经过的中继节点透传，基站收到后再将UE能力发送给中继。这种方式适用于安全激活后的场景，中继无法直接解到UE发送的能力信息。使用SRB1传输。其中UE能力可以包括是否具有中继能力，接入能力，支持载波数，等等。
另一种可能的实现方式，UE先将UE能力发送给直连的中继，由中继在转发给接入网设备。这里中继接收到UE能力可以解出其中内容并保存。这个方式适用于安全未激活的场景。使用承载SRB1bis。
可选地，接入网设备还可以从第一终端接收中继功能开启请求。
具体地，第一终端还可以向接入网设备发送中继功能开启请求，接入网设备根据该中继功能开启请求启动将该第一终端配置为具有中继功能的终端。具体地，接入网设备还可以根据第一终端上报的能力信息确定具体的配置内容。
应理解，该中继功能开启请求可以称为“IAB节点配置请求”或“IAB节点激活请求”或“IAB配置请求”。
可选地，该第一终端的能力信息可以携带在该请求消息里，也可以是单独发送的一条消息，本申请对此不进行限定。
302，接入网设备向该第一终端发送配置信息，该配置信息用于配置该第一终端具有中继功能。
具体地，该第一终端是可以与接入网设备直接进行通信的节点，接入网设备在接收到第一终端的能力信息，可以向该第一终端发送配置信息，以将该第一终端配置为具有中继功能的终端，从而使得第一终端能够作为中继节点中继其他终端和接入网设备之间的通信，这样本申请实施例相对于接入网设备作为中继节点通过回传链路传输RRC信令，节省了信令开销。
需要说明的是，在终端被配置为具有中继功能(例如，终端被配置为IAB节点)时，终端可以具有两侧的协议栈，一侧是中继侧的协议栈，另一侧是终端侧的协议栈。也就是说，终端作为终端的连接管理和终端作为中继节点的连接管理可以分别进行。例如，对中继的配置使用的是中继或者IAB节点的连接管理，如对中继的重配或配置流程是对中继节点的操作，对终端配置使用的是终端的连接管理，比如对终端安全，承载配置等。
应理解，该第一终端可以理解为接入网设备下的第一跳中继。
可选地，接入网设备还可以向该第一终端发送拒绝指示信息，该拒绝指示信息用于指 示拒绝终端开启中继功能的请求。也就是说，该拒绝指示可以是中继功能开启请求的响应信息。即当接入网设备发生拒绝指示信息时，则不需要发送配置信息给第一终端。
应理解，该拒绝指示可以称为“IAB(节点)配置拒绝消息”、“IAB(节点)激活拒绝消息”或“IAB功能拒绝消息”中的任一项,括号内节点可以有也可以无。
当第一终端发送中继功能开始请求消息时，接入网设备发送配置消息给终端，终端回复响应消息。可选的接入网设备可以直接发送配置消息，而不需要第一终端进行请求。当终端收到配置消息后，完成配置即可开启中继功能。
示例性的，终端收到配置信息后，可以回复配置完成或响应消息。用于表示配置完成或已经开启中继功能。
应理解，该配置信息可以称为“IAB节点配置消息”，相应地响应消息可以称为“IAB节点配置完成消息”。或者，该配置信息称为“IAB功能配置消息”，相应地响应消息可以称为“IAB功能配置完成消息”。或者“IAB配置消息”，相应地响应消息可以称为“IAB配置完成消息”。
需要说明的是，本申请实施例中，具体地配置过程也可以是重配置过程，本申请对此不进行限定。也就是说，配置相关的信息也可以称为“重配置信息”。
可选的，基站也可以没有收到中继功能开启请求时，对终端直接发起配置流程，即接入网设备直接对第一终端发送配置消息，第一终端收到后可以对该消息发送响应消息，表示是否配置成功。
可选地，该配置信息可以包括小区接入网络临时标识资源池、距离接入网设备的跳数、中继发送最大功率(P-max)、组跳转配置、接入控制参数、覆盖的阈值范围、功率爬坡参数、小区标识或可用载波列表中的至少一项。这些配置内容可以用于基站控制中继节点工作情况以及分配中继节点可以使用的无线资源，比如载波索引指示中继可以调度的载波，功率配置信息可以用于对中继以及各个节点之间进行功率控制，避免干扰，小区标识可以用于UE重建时使用用于接入网设备进行校验。
具体地，C-RNTI资源池可以包括多个C-RNTI，第一终端可以将该C-RNTI资源池内的C-RNTI分配给接入到该第一终端的具有中继功能的终端。其中，该C-RNTI资源池可以包括该多个C-RNTI中的第一个C-RNTI和最后一个C-RNTI，或者直接包括该多个C-RNTI，本申请对此不进行限定。这样不需要UE接入到基站即可获得C-RNTI，且该方式可以获得接入网设备下小区内的唯一标识。可用载波列表包括接入网设备为第一终端分配的可以使用的载波的集合。小区标识可以是第一终端所属的小区的小区标识(ID)或物理小区标识，或者跟踪区域码。组跳转配置可以包括DRMS的循环移位(DMRS序列的循环移位)，DMRS的基序列(产生DMRS的基序列)，且组跳转配置可以为避免邻区DMRS干扰的配置。
可选地，该第一消息可以包括第一RRC连接完成消息中的信息和第二RRC连接请求消息中的信息，该第一RRC连接完成消息用于指示第三终端完成与该第二终端的RRC连接，该第二RRC连接请求消息用于指示该第三终端请求建立与第二终端之间的RRC连接。
具体地，第一终端还可以连接一个或多个中继节点形成多跳中继连接，或者该多个中继节点和第一终端的标识可以形成“路由列表”。第三终端想要连接到第二终端，可以向第二终端发送RRC连接请求消息，以及接收第二终端发送的RRC连接建立消息，并在完成 与第二终端的RRC连接之后，向第二终端发送RRC连接完成消息。第二终端可以向接入网设备发送第一消息，该第一消息中包括该第二RRC连接请求消息中的信息和第一RRC连接完成消息中的信息，这样相对于分别单独发送RRC连接请求消息中的信息和RRC连接完成消息中的信息，在通过第一终端和接入网设备之间的回传链路时，能够节省信令开销。
需要说明的是，第三终端为第二终端的子节点，即第三终端与第二终端不需要通过其他设备的中继，可以直接进行通信。该第二终端可以是第一终端的子节点，也可以第一终端下级的不相邻的节点，本申请对此不进行限定。
应理解，该第二RRC连接建立完成消息可以包括S-TMSI或随机数，建立原因值，UE的C-RNTI。
可选地，第三终端想要连接到第二终端之前，可以向第二终端发送随机接入，第二终端向该第三终端发送随机接入响应消息，该随机接入响应消息中可以包括从C-RNTI资源池中为该第三终端选择的临时C-RNTI，第三终端通过该临时C-RNTI与第二终端进行通信，竞争解决后并将该临时C-RNTI变为C-RNTI，作为该第三终端的终端标识，当第三终端被配置为中继功能时，该标识也作为该终端的中继标识。
可选地，该第二RRC连接建立完成消息中还可以包括第三终端的中继标识，该中继标识用于指示具有中继功能的终端，也就是说，该第三终端的中继标识用于标识具有中继功能的第三终端。接入网设备可以将该第三终端的中继标识添加到第一路由列表生成第二路由列表，其中，该第一路由列表包括从该第二终端到接入网设备遍历的所有节点的中继标识，例如，第一终端标识，第二终端标识和第三终端标识。
可选地，终端发送的RRC连接请求中的信息和RRC连接建立完成消息中的信息也可以由具有中继功能的节点分别转发到基站。其余步骤复用实施例中的步骤。这意味着竞争解决和RRC连接均在接入网设备进行，这样对接入网设备的改动较小。
需要说明的是，该第一路由列表还包括第二终端到该接入网设备遍历的所有节点的先后顺序。或者第一路由列表包括第二终端到该接入网设备中间经过的所有节点之间的父子节点的关系。
应理解，该第三终端的中继标识可以携带在适配层中，用于标识或寻找或路由到该中继。
可选地，该中继标识可以是小区接入网络临时标识C-RNTI。该C-RNTI可以是具有中继功能的终端分配的也可以是接入网设备直接为该中继分配的。
具体地，接入网设备通过C-RNTI进行寻址，相对于采用GTP-U TEID以及IP地址进行寻址能够节省信令开销。
应理解，不同的具有中继功能的终端对应的中继标识不同。换句话说，接入网设备为每个具有中继功能的终端配置的中继标识是唯一的。
可选地，接入网设备还可以向第一路由列表包括的每个中继标识(可以是除第三终端的以外的终端对应的中继标识)对应的终端发送指示信息，该指示信息用于指示该第三终端为第二终端的子节点。
具体地，接入网设备可以向该第一路由列表中的每个中继标识(可以是除第三终端的以外的终端对应的中继标识)对应的终端发送指示信息，以告知该第三终端加入到了该第 一路由列表中，且该第三终端为第二终端的子节点，以使得每个终端获知更多路径，从而提高通信效率。具体指示方式为：基站向其他中继节点发送第二终端C-RNTI和第三终端C-RNTI。用以标识第三终端为第二终端的子节点。此外也可以发送一个列表，列表内包含每一个新的中继节点和其父节点的标识。即通过一条消息通知多个新增节点，节省信令开销。
需要说明的是，该第二终端可以称为该第三终端的“父节点”。
应理解，该接入网设备发送该指示信息可以在步骤302之前，也可以是与步骤302同时发生，还可以是在步骤302之后，或者在终端完成具有中继功能之后，本申请对此不进行限定。
在一个实施例中，接入网设备还可以向第四终端发送下行信息，该下行信息包括第四终端的终端标识和该第五终端的中继标识，该第四终端为该第五终端的子节点。这两个标识在适配层中，用于路由到第四终端。这种方式每个中继节点(除了第四终端的父节点)只需要保存中继节点的路由信息，而不需要保存UE所在的节点标识，可以大大减少中继节点的存储开销。通过寻找到第五终端的中继标识，再通过第五终端保存的第四终端的标识信息可以寻找到该终端。
具体地，每个中继节点可以存储自己的子节点的标识以及上行所有到达该节点的中继节点标识和节点之间关系，这样接入网设备向某一个不具有中继功能的终端(例如，第四终端)发送下行信息时，该下行信息可以包括第四终端的上一跳的中继节点(例如第五终端)的中继标识，以及该第四终端的终端标识。其中标识信息作为路由信息可以在下行消息的适配层中携带。接入网设备根据路由列表确定与接入网设备连接的第一跳中继节点，该第一跳中继节点存储有第二跳中继节点的中继标识，进而第一跳中继节点将该下行信息发送到第二跳中继节点中，依次进行发送，直到该下行信息到达该第五终端，第五终端可以根据该第四终端的标识将该下行信息发送到该第四终端。也就是说，路由列表中的每个中继标识对应的中继节点存储子节点的中继标识，由于每个中继节点可以用于为一个或多个终端提供中继服务，因此，接入网设备发送给不具有中继功能的终端时，需要在下行信息中携带终端的终端标识和该终端上一跳的中继节点的中继标识，对于中继节点来说数据存储量小，减少了对中继节点的存储能力的要求。
例如，父节点通过中继节点侧向子节点的终端侧或者终端发送数据。
需要说明的是，终端的中继标识和终端标识可以相同，也可以不相同，本申请对此不进行限定。
应理解，该第五终端可以是上述第三终端。
还应理解，下行信息可以是上述的RRC连接建立消息，或者其他下行信息，本申请对此不进行限定。
可选地，本申请实施例中的终端标识和中继标识可以是C-RNTI，S-TMSI，GTP-U TEID，IP地址或其他标识。
可选的，接入网设备也可以为每个中继节点分配一个中继标识，比如5比特标识，可以在配置终端开启中继功能时配置，后续路由信息可以使用该标识，通知其他节点路由更新时，也可通知该标识被释放或者增加。具体通知时也可以通知C-RNTI或其他UE标识与该中继标识，用于其他中继节点识别该中继标识。使用新增的中继标识与C-RNTI比， 减少了信令开销，例如C-RNTI占用16比特，新增标识可以只使用5比特或4比特等。具体路由方式参见其他实施例。
此外，一个实施例还可以为，下行路由信息仅包含终端的终端标识，而不需要携带其父节点的中继标识，这样传输开销与携带父节点的中继标识相比减少了中继标识的信息，从而节省了信令开销。
在另一个实施例中，接入网设备还可以向第七终端发送下行信息，该下行信息包括第七终端的中继标识。
具体地，若该接入网设备向具有中继功能的终端发送下行信息，则该下行信息可以仅包括该第七终端的中继标识，即适配层中仅有第七终端的中继标识。相比保存其父节点和该节点标识，减小了信令开销。
可选地，对于从终端到接入网设备的上行信息，由于上行数据最终都汇聚到接入网设备侧，该上行信息可以携带终端的终端标识，使得接入网设备能够识别该上行信息属于哪个终端。
例如，每个中继/IAB节点从子节点接收数据时，是中继/IAB节点侧从终端或者下级节点的UE侧接收数据。每个中继/IAB节点向父节点发送数据时，即通过中继/IAB节点的终端侧向父节点的中继/IAB节点侧或者基站发送数据。
需要说明的是，若该终端具有中继功能，则该上行信息包括该终端的中继标识。
应理解，该终端标识可以携带在适配层。
还应理解，该上行信息可以是上述RRC连接请求消息或RRC连接完成消息，还可以是其他信息，本申请对此不进行限定。
可选地，接入网设备可以向具有中继功能的终端发送释放信息，该释放信息用于配置该具有中继功能的终端释放中继功能。
具体地，接入网设备可以向某一个终端(例如，第六终端)发送释放信息，该第六终端接收到该释放信息后，根据该释放信息释放中继功能成为普通终端。若第六终端被释放，则接入网设备也应通知其父节点，以及父节点的父节点，直至直连基站的节点，通知其具有中继功能的终端被释放，并相应的更新存储的路由信息。该释放消息中可以包含被释放节点的列表信息，用于通知接收消息的中继至少一个中继节点被释放了中继功能。
应理解，该第六终端可以是上述具有中继功能的第一终端、第二终端、第三终端、第五终端的中至少一项。此外，若第四终端也具有中继功能，则该接入网设备也可以向该第四终端发送该释放信息。
可选地，终端可以向接入网设备发送释放中继请求，接入网设备根据该释放中继请求发送该释放信息，这样接入网设备可以在终端请求的情况下，再释放终端的中继功能，从而实现了终端的中继功能的灵活管理。
可选地，该释放信息可以携带在RRC重配消息中，也可以携带在RRC连接释放消息中。若使用重配置消息释放，对于该终端的父节点会得知该中继功能被释放，但其作为普通UE依然连接在父节点上。
需要说明的是，若释放信息携带在RRC连接释放消息中，则终端在释放完中继功能后，该终端可以进入空闲状态或挂起状态。
可选地，该RRC连接释放消息中还包括重定向信息，该重定向信息用于指示终端能 够接入的中继节点。具体地，该重定向信息可以包括中继节点发送同步信号的频率位置等信息。
可选地，接入网设备可以对开启中继功能的终端，也可以成为中继节点或IAB节点发送释放中继功能的指示消息，中继收到该消息后，释放中继的相关配置，停中继功能，比如停止广播系统消息，和停止同步信号发送等。可选的，该节点可以进入空闲态。
应理解，该指示消息名称可以为“IAB配置释放”，或“IAB功能释放”，还可以是其他名称，本申请对此不进行限定。
可选地，接入网设备还可以向路由列表中的其他中继标识对应的具有中继功能的终端发送路由更新指示信息。终端可以删除路由列表中该释放了中继功能的终端。该指示信息中可以包含被释放的至少一个中继节点标识。
具体地，该更新指示信息可以包括释放了中继功能的终端的中继标识。
因此，本申请实施例的用于中继通信的方法，接入网设备在接收到具有中继功能的第一终端的能力信息，可以向该第一终端发送配置信息，以将该第一终端配置为具有中继功能的终端，从而使得第一终端能够作为中继节点中继其他终端和该接入网设备之间的通信，这样本申请实施例相对于接入网设备作为中继节点通过回传链路传输RRC信令，节省了信令开销。
还应理解，在本申请中，“当…时”、“若”以及“如果”均指在某种客观情况下UE或者基站会做出相应的处理，并非是限定时间，且也不要求UE或基站实现时一定要有判断的动作，也不意味着存在其它限定。
还应理解，在本申请各实施例中，“与A对应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
图4示出了本申请另一个实施例的用于中继通信的方法的示意性流程图。
需要说明的是，在不作特别说明的情况下，本申请实施例中与前述实施例中的相同属于表示的含义相同，为避免重复，在此不进行限定。
401，第三终端向第二终端发送RRC连接请求消息，所述RRC连接请求消息用于请求建立与所述第二终端之间的RRC连接，所述第三终端为所述第二终端的子节点。
402，第二终端向第三终端发送RRC连接建立消息。
403，第三终端向第二终端发送RRC连接完成消息，所述RRC连接完成消息用于指示所述第三终端完成与所述第二终端之间的RRC连接。
404，第二终端向接入网设备发送第一消息，该所述第一消息包括所述RRC连接请求消息中的信息和所述RRC连接完成消息中的信息。
可选地，该第一消息还包括所述第三终端的中继标识。
405，接入网设备将该第三终端的中继标识添加到第一路由列表生成第二路由列表。
该第一路由列表包括从该第二终端到接入网设备遍历的所有节点的中继标识，例如，第一终端标识，第二终端标识和第三终端标识。
可选地，该第一路由列表还包括第二终端到该接入网设备遍历的所有节点的先后顺序。或者第一路由列表包括第二终端到该接入网设备中间经过的所有节点之间的父子节点的关系。
406，接入网设备向第一终端发送指示信息，该指示信息用于指示该第三终端为第二终端的子节点。
接入网设备可以向该第一路由列表中的每个中继标识(可以是除第三终端的以外的终端对应的中继标识)对应的终端发送指示信息，以告知该第三终端加入到了该第一路由列表中，且该第三终端为第二终端的子节点，以使得每个终端获知更多路径，从而提高通信效率。
因此，本申请实施例的用于中继通信的方法，第三终端可以通过一个第一消息将RRC连接请求消息中的信息和RRC连接完成消息中的信息发送给接入网设备，且该第一消息包括第三终端的中继标识，这样接入网设备将该第三终端的中继标识添加到第一路由列表生成第二路由列表，并通过向第一终端发送指示信息告知该第三终端加入到了该第一路由列表中，以使得每个终端获知更多路径，从而提高通信效率。
图5示出了本申请又一个实施例的用于中继通信的方法的示意性流程图。
需要说明的是，在不作特别说明的情况下，本申请实施例中与前述实施例中的相同属于表示的含义相同，为避免重复，在此不进行限定。
501，接入网设备可以向第二终端发送下行信息，该下行信息携带第二终端的中继标识。
502，接入网设备可以向第三终端发送下行信息，该下行信息携带第二终端的中继标识和第三终端的终端标识。
需要说明的是，第二终端在向第三终端发送下行信息时，该下行信息可以不携带该第二终端的中继标识。
503，第三终端向接入网设备发送上行信息，该上行信息携带该第三终端的终端标识。
需要说明的是，本申请实施例对步骤501，步骤502和步骤503的先后顺序不进行限定。
图6示出了本申请又一个实施例的用于中继通信的方法的示意性流程图。
需要说明的是，在不作特别说明的情况下，本申请实施例中与前述实施例中的相同属于表示的含义相同，为避免重复，在此不进行限定。
601，接入网设备获取能力信息。
602，第一终端接收接入网设备发送的配置信息，该配置信息用于配置该第一终端具有中继功能。
603，第三终端向第二终端发送RRC连接请求消息。
604，第二终端向第三终端发送RRC连接建立消息。
605，第三终端向第二终端发送RRC连接完成消息。
606，第二终端向接入网设备发送第一消息。
607，接入网设备将该第三终端的中继标识添加到第一路由列表生成第二路由列表。
608，接入网设备向第一终端发送指示信息，该指示信息用于指示该第三终端为第二终端的子节点。
可选地，在第三终端为具有中继功能的情况下，接入网设备才会向第一终端发送该指示信息。
609，接入网设备可以向第二终端发送下行信息，该下行信息携带第二终端的中继标 识。
610，接入网设备可以向第三终端发送下行信息，在接入网设备发送到第二终端时，需携带第二终端的中继标识和第三终端的终端标识。
613，第三终端向接入网设备发送上行信息，该上行信息携带该第三终端的终端标识。
因此，本申请实施例的用于中继通信的方法，具有中继能力的终端(例如第一终端)可以通过向接入网设备发送能力信息，以使得接入网设备将该终端配置为具有中继功能的终端。新的终端(例如第三终端)可以通过一个第一消息将RRC连接请求消息中的信息和RRC连接完成消息中的信息发送给接入网设备，且该第一消息包括第三终端的中继标识，这样接入网设备将该第三终端的中继标识添加到第一路由列表生成第二路由列表，并通过向第一终端发送指示信息告知该第三终端加入到了该第一路由列表中。通过本申请实施例的方法建立好的路由，终端可以与接入网设备进行上行信息和下行信息的传输，节省了信令开销。
本文中描述的各个实施例可以为独立的方案，也可以根据内在逻辑进行组合，这些方案都落入本申请的保护范围中。
可以理解的是，上述各个方法实施例中，由终端设备实现的方法和操作，也可以由可用于终端设备的部件(例如芯片或者电路)实现，由接入网设备实现的方法和操作，也可以由可用于接入网设备的部件(例如芯片或者电路)实现。
上述主要从各个交互的角度对本申请实施例提供的方案进行了介绍。可以理解的是，各个网元，例如发射端设备或者接收端设备，为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该可以意识到，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，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，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申请的范围。
本申请实施例可以根据上述方法示例对发射端设备或者接收端设备进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以使用硬件的形式实现，也可以使用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，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。下面以使用对应各个功能划分各个功能模块为例进行说明。
应理解，本申请实施例中的具体的例子只是为了帮助本领域技术人员更好地理解本申请实施例，而非限制本申请实施例的范围。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
以上，结合图3至图6详细说明了本申请实施例提供的方法。以下，结合图7至图14详细说明本申请实施例提供的装置。应理解，装置实施例的描述与方法实施例的描述相互对应，因此，未详细描述的内容可以参见上文方法实施例，为了简洁，这里不再赘述。
图7示出了本申请图7示出了本申请实施例的用于中继通信的装置700的示意性框 图。
应理解，该装置700可以对应于图3所示的实施例中的接入网设备，可以具有方法中的接入网设备的任意功能。该装置700，包括接收模块710和发送模块720。
该接收模块710，用于从第一终端获取能力信息，所述能力信息用于指示所述第一终端具有中继能力；
该发送模块720，用于向所述第一终端发送配置信息，所述配置信息用于配置所述第一终端具有中继功能。
可选地，所述配置信息包括小区接入网络临时标识C-RNTI资源池、距离接入网设备的跳数、中继发送最大功率、组跳转配置、接入控制参数、覆盖的阈值范围、功率爬坡参数、小区标识或可用载波列表中的至少一项。
可选地，该接收模块710，还用于从所述第二终端接收第一消息，所述第一消息包括RRC连接请求消息中的信息和RRC连接完成消息中的信息，所述RRC连接完成消息用于指示第三终端完成与所述第二终端的RRC连接，所述RRC连接请求消息用于指示所述第三终端请求建立与所述第二终端之间的RRC连接，所述第三终端为所述第二终端的子节点。
可选地，该第一消息还包括中继标识，该中继标识用于指示具有中继功能的终端，该装置还包括：处理模块，用于将该第一消息中的中继标识添加到第一路由列表生成第二路由列表，该第一路由列表包括从该第二终端到接入网设备遍历的所有节点的中继标识。
可选地，该发送模块720，还用于向该第一路由列表包括的每个中继标识对应的终端发送指示信息，该指示信息用于指示该第一消息中的中继标识指示的第三终端为该第二终端的子节点。
可选地，该发送模块720，还用于向第四终端发送下行信息，该下行信息包括该第四终端的终端标识和该第五终端的中继标识，该第四终端为该第五终端的子节点。
可选地，该发送模块720，还用于向第六终端发送释放信息，该释放信息用于指示该第六终端释放用于中继功能的配置，该第六终端为该第一终端、该第二终端、该第三终端、该第五终端中的至少一项。
可选地，该接收模块710，还用于在向该第一终端发送该配置信息之前，接收中继功能开启请求，该中继功能开启请求用于请求开启该第一终端的中继功能。
因此，本申请实施例的用于中继通信的装置，接入网设备在接收到具有中继功能的第一终端的能力信息，可以向该第一终端发送配置信息，以将该第一终端配置为具有中继功能的终端，从而使得第一终端能够作为中继节点中继其他终端和该接入网设备之间的通信，这样本申请实施例相对于接入网设备作为中继节点通过回传链路传输RRC信令，节省了信令开销。
图8示出了本申请实施例提供的用于中继通信的装置800，该装置800可以为图7中所述的接入网设备。该装置可以采用如图8所示的硬件架构。该装置可以包括处理器810和收发器830，可选地，该装置还可以包括存储器840，该处理器810、收发器830和存储器840通过内部连接通路互相通信。图8中的处理模块830所实现的相关功能可以由处理器810来实现，收发模块810所实现的相关功能可以由处理器810控制收发器830来实现。
可选地，处理器810可以是一个通用中央处理器(central processing unit，CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，专用处理器，或一个或多个用于执行本申请实施例技术方案的集成电路。或者，处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。例如可以是基带处理器、或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对用于中继通信的装置(如，基站、终端、或芯片等)进行控制，执行软件程序，处理软件程序的数据。
可选地，该处理器810可以包括是一个或多个处理器，例如包括一个或多个中央处理单元(central processing unit，CPU)，在处理器是一个CPU的情况下，该CPU可以是单核CPU，也可以是多核CPU。
该收发器830用于发送和接收数据和/或信号，以及接收数据和/或信号。该收发器可以包括发射器和接收器，发射器用于发送数据和/或信号，接收器用于接收数据和/或信号。
该存储器840包括但不限于是随机存取存储器(random access memory，RAM)、只读存储器(read-only memory，ROM)、可擦除可编程存储器(erasable programmable read only memory，EPROM)、只读光盘(compact disc read-only memory，CD-ROM)，该存储器840用于存储相关指令及数据。
存储器840用于存储接入网设备的程序代码和数据，可以为单独的器件或集成在处理器810中。
具体地，所述处理器810用于控制收发器与终端进行信息传输。具体可参见方法实施例中的描述，在此不再赘述。
在具体实现中，作为一种实施例，装置800还可以包括输出设备和输入设备。输出设备和处理器810通信，可以以多种方式来显示信息。例如，输出设备可以是液晶显示器(liquid crystal display，LCD)，发光二级管(light emitting diode，LED)显示设备，阴极射线管(cathode ray tube，CRT)显示设备，或投影仪(projector)等。输入设备和处理器601通信，可以以多种方式接收用户的输入。例如，输入设备可以是鼠标、键盘、触摸屏设备或传感设备等。
可以理解的是，图8仅仅示出了用于中继通信的装置的简化设计。在实际应用中，该装置还可以分别包含必要的其他元件，包含但不限于任意数量的收发器、处理器、控制器、存储器等，而所有可以实现本申请的接入网设备都在本申请的保护范围之内。
在一种可能的设计中，该装置800可以是芯片，例如可以为可用于接入网设备中的通信芯片，用于实现接入网设备中处理器810的相关功能。该芯片可以为实现相关功能的现场可编程门阵列，专用集成芯片，系统芯片，中央处理器，网络处理器，数字信号处理电路，微控制器，还可以采用可编程控制器或其他集成芯片。该芯片中，可选的可以包括一个或多个存储器，用于存储程序代码，当所述代码被执行时，使得处理器实现相应的功能。
本申请实施例还提供一种装置，该装置可以是接入网设备也可以是电路。该装置可以用于执行上述方法实施例中由接入网设备所执行的动作。
图9示出了本申请实施例的用于中继通信的装置900的示意性框图。
应理解，该装置900可以对应于图3所示的实施例中的终端，可以具有方法中的终端的任意功能。该装置900，包括发送模块910和接收模块920。
发送模块910，用于向接入网设备发送能力信息，该能力信息用于指示该第一终端具有中继能力；
接收模块920，用于从该接入网设备接收配置信息，该配置信息用于配置该第一终端具有中继功能。
可选地，该配置信息包括小区接入网络临时标识C-RNTI资源池、距离接入网设备的跳数、中继发送最大功率、组跳转配置、接入控制参数、覆盖的阈值范围、功率爬坡参数、小区标识或可用载波列表中的至少一项。
可选地，该接收模块920，还用于从第三终端接收RRC连接请求消息，所述RRC连接请求消息用于请求建立与所述第二终端之间的RRC连接，所述第三终端为所述第二终端的子节点；所述发送模块910，还用于根据所述RRC连接请求消息向所述第三终端发送RRC连接建立消息；所述接收模块920，还用于从所述第三终端接收RRC连接完成消息，所述RRC连接完成消息用于指示所述第三终端完成与所述第二终端之间的RRC连接；所述发送模块910，还用于向所述接入网设备发送第一消息，所述第一消息包括所述RRC连接请求消息中的信息和所述RRC连接完成消息中的信息，所述第一消息还包括所述第三终端的中继标识。
可选地，在从第二终端接收第二RRC连接请求消息之前，该接收模块920，还用于从该第三终端接收随机接入前导码；该发送模块910，还用于向该第三终端发送随机接入响应，该随机接入响应包括临时C-TNTI标识，该临时C-TNTI标识为C-RNTI资源池中的第一C-RNTI标识，该第一C-RNTI标识用于作为该第三终端的中继标识。
可选地，该接收模块920，还用于接收指示信息，该指示信息用于指示该第三终端为第二终端的子节点。
可选地，该接收模块920，还用于接收释放信息；该装置还包括处理模块，该处理模块用于根据该释放信息，释放用于中继功能的配置。
可选地，该发送模块910，还用于在从该接入网设备接收该配置信息之前，发送中继功能开启请求，该中继功能开启请求用于请求开启该第一终端的中继功能。
本申请实施例的用于中继通信的装置，第一终端向接入网设备发送用于指示该第一终端具有中继功能的能力信息，并从接入网设备接收该第一终端发送配置信息，进而根据该配置信息将该第一终端配置为具有中继功能的终端，这样第一终端能够作为中继节点可以中继其他终端和该接入网设备之间的通信。因此，本申请实施例相对于接入网设备作为中继节点通过回传链路传输RRC信令，节省了信令开销。
图10示出了本申请实施例提供的用于中继通信的装置1000，该装置1000可以为图9中所述的终端。该装置可以采用如图10所示的硬件架构。该装置可以包括处理器1010和收发器1020，可选地，该装置还可以包括存储器1030，该处理器1010、收发器1020和存储器1030通过内部连接通路互相通信。图10中的处理模块1020所实现的相关功能可以由处理器1010来实现，收发模块1010所实现的相关功能可以由处理器1010控制收发器1020来实现。
可选地，处理器1010可以是一个通用中央处理器(central processing unit，CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，专用处理器，或一个或多个用于执行本申请实施例技术方案的集成电路。或者，处理器可以指一个或多 个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。例如可以是基带处理器、或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对用于中继通信的装置(如，基站、终端、或芯片等)进行控制，执行软件程序，处理软件程序的数据。
可选地，该处理器1010可以包括是一个或多个处理器，例如包括一个或多个中央处理单元(central processing unit，CPU)，在处理器是一个CPU的情况下，该CPU可以是单核CPU，也可以是多核CPU。
该收发器1020用于发送和接收数据和/或信号，以及接收数据和/或信号。该收发器可以包括发射器和接收器，发射器用于发送数据和/或信号，接收器用于接收数据和/或信号。
该存储器1030包括但不限于是随机存取存储器(random access memory，RAM)、只读存储器(read-only memory，ROM)、可擦除可编程存储器(erasable programmable read only memory，EPROM)、只读光盘(compact disc read-only memory，CD-ROM)，该存储器1030用于存储相关指令及数据。
存储器1030用于存储终端的程序代码和数据，可以为单独的器件或集成在处理器1010中。
具体地，所述处理器1010用于控制收发器与终端进行信息传输。具体可参见方法实施例中的描述，在此不再赘述。
在具体实现中，作为一种实施例，装置1000还可以包括输出设备和输入设备。输出设备和处理器1010通信，可以以多种方式来显示信息。例如，输出设备可以是液晶显示器(liquid crystal display，LCD)，发光二级管(light emitting diode，LED)显示设备，阴极射线管(cathode ray tube，CRT)显示设备，或投影仪(projector)等。输入设备和处理器901通信，可以以多种方式接收用户的输入。例如，输入设备可以是鼠标、键盘、触摸屏设备或传感设备等。
可以理解的是，图10仅仅示出了用于中继通信的装置的简化设计。在实际应用中，该装置还可以分别包含必要的其他元件，包含但不限于任意数量的收发器、处理器、控制器、存储器等，而所有可以实现本申请的终端都在本申请的保护范围之内。
在一种可能的设计中，该装置1000可以是芯片，例如可以为可用于终端中的通信芯片，用于实现终端中处理器1010的相关功能。该芯片可以为实现相关功能的现场可编程门阵列，专用集成芯片，系统芯片，中央处理器，网络处理器，数字信号处理电路，微控制器，还可以采用可编程控制器或其他集成芯片。该芯片中，可选的可以包括一个或多个存储器，用于存储程序代码，当所述代码被执行时，使得处理器实现相应的功能。
本申请实施例还提供一种装置，该装置可以是终端也可以是电路。该装置可以用于执行上述方法实施例中由终端所执行的动作。
可选地，本实施例中的装置为终端时，图11示出了一种简化的终端的结构示意图。便于理解和图示方便，图11中，终端以手机作为例子。如图11所示，终端包括处理器、存储器、射频电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对终端进行控制，执行软件程序，处理软件程序的数据等。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键 盘等主要用于接收用户输入的数据以及对用户输出数据。需要说明的是，有些种类的终端可以不具有输入输出装置。
当需要发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。为便于说明，图11中仅示出了一个存储器和处理器。在实际的终端产品中，可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置，也可以是与处理器集成在一起，本申请实施例对此不做限制。
在本申请实施例中，可以将具有收发功能的天线和射频电路视为终端的收发单元，将具有处理功能的处理器视为终端的处理单元。如图11所示，终端包括收发单元1110和处理单元1120。收发单元也可以称为收发器、收发机、收发装置等。处理单元也可以称为处理器，处理单板，处理模块、处理装置等。可选的，可以将收发单元1110中用于实现接收功能的器件视为接收单元，将收发单元1110中用于实现发送功能的器件视为发送单元，即收发单元1110包括接收单元和发送单元。收发单元有时也可以称为收发机、收发器、或收发电路等。接收单元有时也可以称为接收机、接收器、或接收电路等。发送单元有时也可以称为发射机、发射器或者发射电路等。
应理解，收发单元1110用于执行上述方法实施例中终端侧的发送操作和接收操作，处理单元1120用于执行上述方法实施例中终端上除了收发操作之外的其他操作。
例如，在一种实现方式中，处理单元1120用于执行终端侧的处理步骤。收发单元1110，用于执行图3中的步骤301和/或步骤302中的收发操作，和/或收发单元1110还用于执行本申请实施例中终端侧的其他收发步骤。
当该通信装置为芯片时，该芯片包括收发单元和处理单元。其中，收发单元可以是输入输出电路、通信接口；处理单元为该芯片上集成的处理器或者微处理器或者集成电路。
可选地，该装置为终端时，还可以参照图12所示的设备。作为一个例子，该设备可以完成类似于图11中处理器1110的功能。在图12中，该设备包括处理器1201，发送数据处理器1203，接收数据处理器1205。上述实施例中的处理模块可以是图12中的该处理器1201，并完成相应的功能。上述实施例中的接收模块可以是图12中的接收数据处理器1205，发送模块可以是图12中的发送数据处理器1203。虽然图12中示出了信道编码器、信道解码器，但是可以理解这些模块并不对本实施例构成限制性说明，仅是示意性的。
图13示出本实施例的另一种形式。处理装置1300中包括调制子系统、中央处理子系统、周边子系统等模块。本实施例中的通信设备可以作为其中的调制子系统。具体的，该调制子系统可以包括处理器1303，接口1304。其中处理器1303完成处理模块的功能，接口1304完成上述接收模块或发送模块的功能。作为另一种变形，该调制子系统包括存储器1306、处理器1303及存储在存储器上并可在处理器上运行的程序，所述处理器执行所述程序时实现实施例一至五之一所述方法。需要注意的是，所述存储器1306可以是非易失性的，也可以是易失性的，其位置可以位于调制子系统内部，也可以位于处理装置1300中，只要该存储器1306可以连接到所述处理器1303即可。
本实施例中的装置为接入网设备时，该接入网设备可以如图14所示，装置1400包括 一个或多个射频单元，如远端射频单元(remote radio unit，RRU)1410和一个或多个基带单元(baseband unit，BBU)(也可称为数字单元，digital unit，DU)1420。所述RRU 1410可以称为收发模块，与上述接收模块和发送模块对应，可选地，该收发模块还可以称为收发机、收发电路、或者收发器等等，其可以包括至少一个天线1411和射频单元1412。所述RRU 1410部分主要用于射频信号的收发以及射频信号与基带信号的转换，例如用于向终端设备发送指示信息。所述BBU 1410部分主要用于进行基带处理，对基站进行控制等。所述RRU 1410与BBU 1420可以是物理上设置在一起，也可以物理上分离设置的，即分布式基站。
所述BBU 1420为基站的控制中心，也可以称为处理模块，可以与图9中的处理模块920对应，主要用于完成基带处理功能，如信道编码，复用，调制，扩频等等。例如所述BBU(处理模块)可以用于控制基站执行上述方法实施例中关于接入网设备的操作流程，例如，生成上述指示信息等。
在一个示例中，所述BBU 1420可以由一个或多个单板构成，多个单板可以共同支持单一接入制式的无线接入网(如LTE网)，也可以分别支持不同接入制式的无线接入网(如LTE网，5G网或其他网)。所述BBU 1420还包括存储器1421和处理器1422。所述存储器1421用以存储必要的指令和数据。所述处理器1422用于控制基站进行必要的动作，例如用于控制基站执行上述方法实施例中关于接入网设备的操作流程。所述存储器1421和处理器1422可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。
另外，接入网设备不限于上述形态，也可以是其它形态：例如：包括BBU和自适应无线单元(adaptive radio unit，ARU)，或BBU和有源天线单元(active antenna unit，AAU)；也可以为客户终端设备(customer premises equipment，CPE)，还可以为其它形态，本申请不限定。
作为本实施例的另一种形式，提供一种计算机可读存储介质，其上存储有指令，该指令被执行时执行上述方法实施例中的方法。
作为本实施例的另一种形式，提供一种包含指令的计算机程序产品，该指令被执行时执行上述方法实施例中的方法。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例 如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
应理解，处理器可以是集成电路芯片，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、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申请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。结合本申请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，本申请实施例中的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(synchronous link DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。
本申请中，“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b，或c中的至少一项(个)，可以表示：a，b，c，a-b，a-c，b-c，或a-b-c，其中a，b，c可以是单个，也可以是多个。
应理解，说明书通篇中提到的“一个实施例”或“一实施例”意味着与实施例有关的特定特征、结构或特性包括在本申请的至少一个实施例中。因此，在整个说明书各处出现的“在一个实施例中”或“在一实施例中”未必一定指相同的实施例。此外，这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
在本说明书中使用的术语“部件”、“模块”、“系统”等用于表示计算机相关的实体、硬件、固件、硬件和软件的组合、软件、或执行中的软件。例如，部件可以是但不限 于，在处理器上运行的进程、处理器、对象、可执行文件、执行线程、程序和/或计算机。通过图示，在计算设备上运行的应用和计算设备都可以是部件。一个或多个部件可驻留在进程和/或执行线程中，部件可位于一个计算机上和/或分布在2个或更多个计算机之间。此外，这些部件可从在上面存储有各种数据结构的各种计算机可读介质执行。部件可例如根据具有一个或多个数据分组(例如来自与本地系统、分布式系统和/或网络间的另一部件交互的二个部件的数据，例如通过信号与其它系统交互的互联网)的信号通过本地和/或远程进程来通信。
还应理解，本文中涉及的第一、第二以及各种数字编号仅为描述方便进行的区分，并不用来限制本申请实施例的范围。
应理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。其中，单独存在A或B，并不限定A或B的数量。以单独存在A为例，可以理解为具有一个或多个A。
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申请的范围。
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，上述描述的系统、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。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、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系统，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实施例方案的目的。
另外，在本申请各个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。
所述功能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，本申请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，或者接入网设备等)执行本申请各个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(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请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申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (34)

  1. 一种用于中继通信的方法，其特征在于，包括：
    从第一终端获取能力信息，所述能力信息用于指示所述第一终端具有中继能力；
    向所述第一终端发送配置信息，所述配置信息用于配置所述第一终端具有中继功能。
  2. 根据权利要求1所述的方法，其特征在于，所述配置信息包括小区接入网络临时标识C-RNTI资源池、距离接入网设备的跳数、中继发送最大功率、组跳转配置、接入控制参数、覆盖的阈值范围、功率爬坡参数、小区标识或可用载波列表中的至少一项。
  3. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    从所述第二终端接收第一消息，所述第一消息包括RRC连接请求消息中的信息和RRC连接完成消息中的信息，所述RRC连接完成消息用于指示第三终端完成与所述第二终端的RRC连接，所述RRC连接请求消息用于指示所述第三终端请求建立与所述第二终端之间的RRC连接，所述第三终端为所述第二终端的子节点。
  4. 根据权利要求3所述的方法，其特征在于，所述第一消息还包括中继标识，所述中继标识用于指示具有中继功能的终端，所述方法还包括：
    将所述第一消息中的中继标识添加到第一路由列表生成第二路由列表，所述第一路由列表包括从所述第二终端到接入网设备遍历的所有节点的中继标识。
  5. 根据权利要求4所述的方法，其特征在于，所述方法还包括：
    向所述第一路由列表包括的每个中继标识对应的终端发送指示信息，所述指示信息用于指示所述第一消息中的中继标识指示的第三终端为所述第二终端的子节点。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，所述方法还包括：
    向第四终端发送下行信息，所述下行信息包括所述第四终端的终端标识和所述第五终端的中继标识，所述第四终端为所述第五终端的子节点。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述方法还包括：
    向第六终端发送释放信息，所述释放信息用于指示所述第六终端释放用于中继功能的配置，所述第六终端为所述第一终端、所述第二终端、所述第三终端、所述第五终端中的至少一项。
  8. 根据权利要求1至7中任一项所述的方法，其特征在于，在向所述第一终端发送所述配置信息之前，所述方法还包括：
    接收中继功能开启请求，所述中继功能开启请求用于请求开启所述第一终端的中继功能。
  9. 一种用于中继通信的方法，其特征在于，包括：
    向接入网设备发送能力信息，所述能力信息用于指示第一终端具有中继能力；
    从所述接入网设备接收配置信息，所述配置信息用于配置所述第一终端具有中继功能。
  10. 根据权利要求9所述的方法，其特征在于，所述配置信息包括小区接入网络临时标识C-RNTI资源池、距离接入网设备的跳数、中继发送最大功率、组跳转配置、接入控制参数、覆盖的阈值范围、功率爬坡参数、小区标识或可用载波列表中的至少一项。
  11. 根据权利要求9或10所述的方法，其特征在于，所述方法还包括：
    从第三终端接收RRC连接请求消息，所述RRC连接请求消息用于请求建立与所述第二终端之间的RRC连接，所述第三终端为所述第二终端的子节点；
    根据所述RRC连接请求消息向所述第三终端发送RRC连接建立消息；
    从所述第三终端接收RRC连接完成消息，所述RRC连接完成消息用于指示所述第三终端完成与所述第二终端之间的RRC连接；
    向所述接入网设备发送第一消息，所述第一消息包括所述RRC连接请求消息中的信息和所述RRC连接完成消息中的信息，所述第一消息还包括所述第三终端的中继标识。
  12. 根据权利要求11所述的方法，其特征在于，在从第二终端接收第二RRC连接请求消息之前，所述方法还包括：
    从所述第三终端接收随机接入前导码；
    向所述第三终端发送随机接入响应，所述随机接入响应包括临时C-TNTI标识，所述临时C-TNTI标识为C-RNTI资源池中的第一C-RNTI标识，所述第一C-RNTI标识用于作为所述第三终端的中继标识。
  13. 根据权利要求11或12所述的方法，其特征在于，所述方法还包括：
    接收指示信息，所述指示信息用于指示所述第三终端为第二终端的子节点。
  14. 根据权利要求9至13中任一项所述的方法，其特征在于，所述方法还包括：
    接收释放信息；
    根据所述释放信息，释放用于中继功能的配置。
  15. 根据权利要求9至14中任一项所述的方法，其特征在于，所述在从所述接入网设备接收所述配置信息之前，所述方法还包括：
    发送中继功能开启请求，所述中继功能开启请求用于请求开启所述第一终端的中继功能。
  16. 一种用于中继通信的装置，其特征在于，包括：
    接收模块，用于从第一终端获取能力信息，所述能力信息用于指示所述第一终端具有中继能力；
    发送模块，用于向所述第一终端发送配置信息，所述配置信息用于配置所述第一终端具有中继功能。
  17. 根据权利要求16所述的装置，其特征在于，所述配置信息包括小区接入网络临时标识C-RNTI资源池、距离接入网设备的跳数、中继发送最大功率、组跳转配置、接入控制参数、覆盖的阈值范围、功率爬坡参数、小区标识或可用载波列表中的至少一项。
  18. 根据权利要求16或17所述的装置，其特征在于，所述接收模块，还用于从所述第二终端接收第一消息，所述第一消息包括RRC连接请求消息中的信息和RRC连接完成消息中的信息，所述RRC连接完成消息用于指示第三终端完成与所述第二终端的RRC连接，所述RRC连接请求消息用于指示所述第三终端请求建立与所述第二终端之间的RRC连接，所述第三终端为所述第二终端的子节点。
  19. 根据权利要求18所述的装置，其特征在于，所述第一消息还包括中继标识，所述中继标识用于指示具有中继功能的终端，所述装置还包括：
    处理模块，用于将所述第一消息中的中继标识添加到第一路由列表生成第二路由列 表，所述第一路由列表包括从所述第二终端到接入网设备遍历的所有节点的中继标识。
  20. 根据权利要求19所述的装置，其特征在于，所述发送模块，还用于向所述第一路由列表包括的每个中继标识对应的终端发送指示信息，所述指示信息用于指示所述第一消息中的中继标识指示的第三终端为所述第二终端的子节点。
  21. 根据权利要求16至20中任一项所述的装置，其特征在于，所述发送模块，还用于向第四终端发送下行信息，所述下行信息包括所述第四终端的终端标识和所述第五终端的中继标识，所述第四终端为所述第五终端的子节点。
  22. 根据权利要求16至21中任一项所述的装置，其特征在于，所述发送模块，还用于向第六终端发送释放信息，所述释放信息用于指示所述第六终端释放用于中继功能的配置，所述第六终端为所述第一终端、所述第二终端、所述第三终端、所述第五终端中的至少一项。
  23. 根据权利要求16至22中任一项所述的装置，其特征在于，所述接收模块，还用于在向所述第一终端发送所述配置信息之前，接收中继功能开启请求，所述中继功能开启请求用于请求开启所述第一终端的中继功能。
  24. 一种用于中继通信的装置，其特征在于，包括：
    发送模块，用于向接入网设备发送能力信息，所述能力信息用于指示所述第一终端具有中继能力；
    接收模块，用于从所述接入网设备接收配置信息，所述配置信息用于配置所述第一终端具有中继功能。
  25. 根据权利要求24所述的装置，其特征在于，所述配置信息包括小区接入网络临时标识C-RNTI资源池、距离接入网设备的跳数、中继发送最大功率、组跳转配置、接入控制参数、覆盖的阈值范围、功率爬坡参数、小区标识或可用载波列表中的至少一项。
  26. 根据权利要求25所述的装置，其特征在于，所述接收模块，还用于从第三终端接收RRC连接请求消息，所述RRC连接请求消息用于请求建立与所述第二终端之间的RRC连接，所述第三终端为所述第二终端的子节点；
    所述发送模块，还用于根据所述RRC连接请求消息向所述第三终端发送RRC连接建立消息；
    所述接收模块，还用于从所述第三终端接收RRC连接完成消息，所述RRC连接完成消息用于指示所述第三终端完成与所述第二终端之间的RRC连接；
    所述发送模块，还用于向所述接入网设备发送第一消息，所述第一消息包括所述RRC连接请求消息中的信息和所述RRC连接完成消息中的信息，所述第一消息还包括所述第三终端的中继标识。
  27. 根据权利要求26所述的装置，其特征在于，在从第二终端接收第二RRC连接请求消息之前，所述接收模块，还用于从所述第三终端接收随机接入前导码；
    所述发送模块，还用于向所述第三终端发送随机接入响应，所述随机接入响应包括临时C-TNTI标识，所述临时C-TNTI标识为C-RNTI资源池中的第一C-RNTI标识，所述第一C-RNTI标识用于作为所述第三终端的中继标识。
  28. 根据权利要求27所述的装置，其特征在于，所述接收模块，还用于接收指示信息，所述指示信息用于指示所述第三终端为第二终端的子节点。
  29. 根据权利要求24至28任一项所述的装置，其特征在于，所述接收模块，还用于接收释放信息；
    所述装置还包括处理模块，所述处理模块用于根据所述释放信息，释放用于中继功能的配置。
  30. 根据权利要求24至28任一项所述的装置，其特征在于，所述发送模块，还用于在从所述接入网设备接收所述配置信息之前，发送中继功能开启请求，所述中继功能开启请求用于请求开启所述第一终端的中继功能。
  31. 一种计算机可读存储介质，包括指令，当其在计算机上运行时，使得计算机执行如权利要求1至15中任一项所述的方法。
  32. 一种计算机程序产品，当其在计算机上运行时，使得计算机执行权利要求1至15中任一项所述的方法。
  33. 一种通信装置，其特征在于，包括：
    存储器，用于存储计算机程序；
    处理器，用于执行所述存储器中存储的计算机程序，以使得所述装置执行如权利要求1至15中任一项所述的方法。
  34. 一种通信系统，其特征在于，包括：用于权利要求16至23中任一项所述的装置和用于执行权利要求24至30中任一项所述的装置。
PCT/CN2019/081703 2019-04-08 2019-04-08 一种用于中继通信的方法和装置 WO2020206582A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2019/081703 WO2020206582A1 (zh) 2019-04-08 2019-04-08 一种用于中继通信的方法和装置
CN201980093378.1A CN113508639B (zh) 2019-04-08 2019-04-08 一种用于中继通信的方法和装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/081703 WO2020206582A1 (zh) 2019-04-08 2019-04-08 一种用于中继通信的方法和装置

Publications (1)

Publication Number Publication Date
WO2020206582A1 true WO2020206582A1 (zh) 2020-10-15

Family

ID=72752178

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/081703 WO2020206582A1 (zh) 2019-04-08 2019-04-08 一种用于中继通信的方法和装置

Country Status (2)

Country Link
CN (1) CN113508639B (zh)
WO (1) WO2020206582A1 (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112333795A (zh) * 2020-11-11 2021-02-05 维沃移动通信有限公司 网络接入方法及装置
CN114503657A (zh) * 2021-12-31 2022-05-13 北京小米移动软件有限公司 设备能力信息上报方法及装置
CN114980352A (zh) * 2021-02-27 2022-08-30 上海华为技术有限公司 一种数据传输方法及其设备
CN115243080A (zh) * 2022-09-21 2022-10-25 腾讯科技（深圳）有限公司 一种数据处理方法、装置、设备及存储介质
WO2023051364A1 (zh) * 2021-09-30 2023-04-06 华为技术有限公司 通信方法及通信装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116017770A (zh) * 2021-10-21 2023-04-25 大唐移动通信设备有限公司 远端终端信息的发送方法、接收方法及设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102811497A (zh) * 2011-06-03 2012-12-05 中国移动通信集团公司 一种接入网络的方法、终端及系统
WO2016163834A1 (en) * 2015-04-09 2016-10-13 Lg Electronics Inc. Method and apparatus for configuring criteria for relay configuration in wireless communication system
CN106211026A (zh) * 2014-12-22 2016-12-07 中兴通讯股份有限公司 一种实现设备直通中继选择的方法、网络控制节点及用户设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8737267B2 (en) * 2008-01-30 2014-05-27 Qualcomm Incorporated Management of wireless relay nodes using routing table
CN103548415A (zh) * 2012-05-21 2014-01-29 华为技术有限公司 通信方法与系统、以及接入网设备、终端和核心网设备
KR20140079525A (ko) * 2012-12-14 2014-06-27 한국전자통신연구원 중계기를 포함한 통신 시스템에서 기지국과 단말의 통신 방법
US9713180B1 (en) * 2016-03-15 2017-07-18 Qualcomm Incorporated Relay centric mobility management in a mesh network

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102811497A (zh) * 2011-06-03 2012-12-05 中国移动通信集团公司 一种接入网络的方法、终端及系统
CN106211026A (zh) * 2014-12-22 2016-12-07 中兴通讯股份有限公司 一种实现设备直通中继选择的方法、网络控制节点及用户设备
WO2016163834A1 (en) * 2015-04-09 2016-10-13 Lg Electronics Inc. Method and apparatus for configuring criteria for relay configuration in wireless communication system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112333795A (zh) * 2020-11-11 2021-02-05 维沃移动通信有限公司 网络接入方法及装置
CN112333795B (zh) * 2020-11-11 2023-10-27 维沃移动通信有限公司 网络接入方法及装置
CN114980352A (zh) * 2021-02-27 2022-08-30 上海华为技术有限公司 一种数据传输方法及其设备
WO2023051364A1 (zh) * 2021-09-30 2023-04-06 华为技术有限公司 通信方法及通信装置
CN114503657A (zh) * 2021-12-31 2022-05-13 北京小米移动软件有限公司 设备能力信息上报方法及装置
WO2023123520A1 (zh) * 2021-12-31 2023-07-06 北京小米移动软件有限公司 设备能力信息上报方法及装置
CN115243080A (zh) * 2022-09-21 2022-10-25 腾讯科技（深圳）有限公司 一种数据处理方法、装置、设备及存储介质

Also Published As

Publication number Publication date
CN113508639B (zh) 2022-07-29
CN113508639A (zh) 2021-10-15

Similar Documents

Publication Publication Date Title
WO2020206582A1 (zh) 一种用于中继通信的方法和装置
JP6647447B2 (ja) 無線アクセス技術を使用するワイヤレスネットワークにおけるシグナリングおよびリソース割振りの協調
WO2020073855A1 (zh) 建立会话的方法和装置以及发送报文的方法和装置
WO2020224472A1 (zh) 分配、获取ip地址的方法及设备
WO2023011210A1 (zh) 一种获取边缘服务的方法和装置
US10897784B2 (en) Apparatus and method for wireless communication, and non-transitory computer readable medium storing program
EP3883281B1 (en) Method for allocating resources and communication apparatus
WO2016161623A1 (zh) 发现信号的传输方法、装置以及通信系统
WO2022017285A1 (zh) 报文转发方法、装置及系统
WO2022052851A1 (zh) 一种服务质量QoS的监测方法
JP2017175348A (ja) デバイス・ツー・デバイス通信に関するリソーススケジューリングのための装置及び方法
US20220408317A1 (en) Handover method and communication apparatus
WO2021078129A1 (zh) 通信方法和通信装置
WO2020200043A1 (zh) 通信方法和通信装置
WO2021212372A1 (zh) 资源分配方法和终端
WO2021189367A1 (zh) 物理信道监测方法和终端设备
WO2023202534A1 (zh) 多跳传输方法及通信装置
US20230107139A1 (en) Relay discovery method and terminal
WO2021134437A1 (zh) 传输初始接入配置信息的方法和装置
WO2020199034A1 (zh) 用于中继通信的方法和装置
WO2022113370A1 (ja) ネットワークノード及び通信方法
WO2021212371A1 (zh) 侧行资源分配方法和终端设备
WO2020216083A1 (zh) 一种通信方法、通信装置及终端设备
WO2024007930A1 (zh) 一种通信方法、设备和系统
WO2024067869A1 (zh) 通信方法和通信装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19924309

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19924309

Country of ref document: EP

Kind code of ref document: A1