WO2023284512A1 - 中继选择方法、装置及终端 - Google Patents

中继选择方法、装置及终端 Download PDF

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Publication number
WO2023284512A1
WO2023284512A1 PCT/CN2022/100736 CN2022100736W WO2023284512A1 WO 2023284512 A1 WO2023284512 A1 WO 2023284512A1 CN 2022100736 W CN2022100736 W CN 2022100736W WO 2023284512 A1 WO2023284512 A1 WO 2023284512A1
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Prior art keywords
relay
terminal
relay terminal
discovery message
target
Prior art date
Application number
PCT/CN2022/100736
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English (en)
French (fr)
Inventor
赵亚利
Original Assignee
大唐移动通信设备有限公司
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Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Priority to EP22841152.6A priority Critical patent/EP4373163A1/en
Publication of WO2023284512A1 publication Critical patent/WO2023284512A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/02Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22Communication 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/24Connectivity information management, e.g. connectivity discovery or connectivity update
    • H04W40/246Connectivity information discovery
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/04Terminal devices adapted for relaying to or from another terminal or user
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/24Connectivity information management, e.g. connectivity discovery or connectivity update
    • H04W40/248Connectivity information update

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular, to a relay selection method, device and terminal.
  • the traditional wireless communication adopts the cellular network communication method, that is, the terminal and the network-side device transmit uplink and downlink data and/or control information through a common user and network interface (User to Network Interface, Uu interface).
  • a common user and network interface User to Network Interface, Uu interface
  • Direct communication refers to a method in which adjacent terminals can perform data transmission through a direct communication link (also called Sidelink, bypass or PC5) within a short distance.
  • the wireless interface corresponding to the Sidelink is called a direct communication interface (also called a Sidelink interface, a bypass interface or a PC5 interface).
  • UE-to-Network Relay UE-to-Network Relay
  • SL relay sidelink relay
  • the relay itself may be a terminal with a relay function.
  • the interface between the relay terminal 12 and the network device 13 uses the Uu interface
  • the interface between the relay terminal (referred to as the remote terminal) 11 uses the Sidelink interface.
  • the link (Uu link) between the relay and the network may be called a backhaul link (Backhaul link) for the remote terminal.
  • one-hop relay is enough, so currently, only one-hop relay is supported for sidelink relay, that is, the remote terminal accesses the relay terminal through sidelink, and the relay terminal and network equipment can be directly connected.
  • sidelink relay that is, the remote terminal accesses the relay terminal through sidelink, and the relay terminal and network equipment can be directly connected.
  • the entire network may be paralyzed, so multi-hop relays may be required. That is, if the remote terminal cannot connect to the network through a relay, then a multi-hop relay may be introduced.
  • the purpose of the embodiments of the present disclosure is to provide a relay selection method, device and terminal to solve the problem of how to design a relay discovery message in a multi-hop relay scenario in the related art.
  • an embodiment of the present disclosure provides a relay selection method, the method includes:
  • the first terminal receives a relay discovery message sent by at least one relay terminal, where the relay discovery message carries first indication information;
  • the first terminal selects a last-hop relay terminal to be accessed according to the first indication information carried in the relay discovery message;
  • the first terminal is a remote terminal and/or a terminal capable of relaying.
  • the first indication information includes at least one of the following:
  • the relay type currently used by the relay terminal is the relay type currently used by the relay terminal.
  • the target object includes: a target terminal and/or a target network device.
  • the identification information of the target terminal includes: a direct communication target address of the target terminal;
  • the identification information of the target network device includes: public land mobile network PLMN ID, and/or, cell ID.
  • the current status information of the relay terminal includes at least one of the following:
  • the The method when the first terminal is a terminal capable of relaying, before the first terminal selects the last-hop relay terminal to be accessed according to the first indication information carried in the relay discovery message, the The method also includes:
  • the terminal having the relay capability determines whether to activate the relay capability.
  • the The method when the first terminal is a terminal capable of relaying, before the first terminal selects the last-hop relay terminal to be accessed according to the first indication information carried in the relay discovery message, the The method also includes:
  • the terminal having the relay capability determines whether a relay connection can be established with the relay terminal corresponding to the relay discovery message according to the relay discovery message.
  • the terminal having the relay capability determines whether a relay connection can be established with the relay terminal corresponding to the relay discovery message according to the relay discovery message, including:
  • the terminal capable of relaying can establish a relay connection with a relay terminal satisfying a first condition; wherein the first condition includes at least one of the following:
  • the terminal capable of relaying supports the relay type currently used by the relay terminal indicated by the relay discovery message
  • the load information of the relay terminal indicated by the relay discovery message satisfies a second condition
  • the current state information of the relay terminal indicated by the relay discovery message satisfies the third condition.
  • the second condition includes: the load of the relay terminal is lower than a first threshold.
  • the third condition includes at least one of the following:
  • the power of the relay terminal is higher than the second threshold
  • the speed of the relay terminal is lower than a third threshold
  • the load of the relay terminal is lower than the fourth threshold.
  • the first terminal selects the last-hop relay terminal to be accessed according to the first indication information carried in the relay discovery message, including:
  • the terminal having the relay capability selects a relay terminal from the relay terminals satisfying the first condition as the last-hop relay terminal to be accessed;
  • the terminal with relay capability selects one or more relay terminals from the relay terminals satisfying the first condition as the last-hop relay terminal to be accessed .
  • An embodiment of the present disclosure also provides a relay selection method, which includes:
  • the relay terminal sends a relay discovery message to the first terminal, where the relay discovery message carries first indication information
  • the first terminal is a remote terminal and/or a terminal capable of relaying; the first indication information is used to assist the first terminal in selecting a last-hop relay terminal to be accessed.
  • the first indication information includes at least one of the following:
  • the relay type currently used by the relay terminal is the relay type currently used by the relay terminal.
  • the target object includes: a target terminal and/or a target network device.
  • the identification information of the target terminal includes: a direct communication target address of the target terminal;
  • the identification information of the target network device includes: public land mobile network PLMN ID, and/or, cell ID.
  • the current status information of the relay terminal includes at least one of the following:
  • An embodiment of the present disclosure also provides a relay selection device, including:
  • a receiving unit configured to receive a relay discovery message sent by at least one relay terminal, where the relay discovery message carries first indication information
  • a selection unit configured to select a last-hop relay terminal to be accessed according to the first indication information carried in the relay discovery message
  • the first terminal is a remote terminal and/or a terminal capable of relaying.
  • An embodiment of the present disclosure also provides a terminal, where the terminal is a first terminal, including a memory, a transceiver, and a processor:
  • the memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations:
  • the first terminal is a remote terminal and/or a terminal capable of relaying.
  • the first indication information includes at least one of the following:
  • the relay type currently used by the relay terminal is the relay type currently used by the relay terminal.
  • the target object includes: a target terminal and/or a target network device.
  • the identification information of the target terminal includes: a direct communication target address of the target terminal;
  • the identification information of the target network device includes: public land mobile network PLMN ID, and/or, cell ID.
  • the current status information of the relay terminal includes at least one of the following:
  • processor is also used to read the computer program in the memory and perform the following operations:
  • the processor is also configured to read a computer program in the memory and perform the following operations:
  • the relay discovery message it is judged whether a relay connection can be established with the relay terminal corresponding to the relay discovery message.
  • processor is also used to read the computer program in the memory and perform the following operations:
  • the terminal capable of relaying can establish a relay connection with a relay terminal satisfying a first condition; wherein the first condition includes at least one of the following:
  • the terminal capable of relaying supports the relay type currently used by the relay terminal indicated by the relay discovery message
  • the load information of the relay terminal indicated by the relay discovery message satisfies a second condition
  • the current state information of the relay terminal indicated by the relay discovery message satisfies the third condition.
  • the second condition includes: the load of the relay terminal is lower than a first threshold.
  • the third condition includes at least one of the following:
  • the power of the relay terminal is higher than the second threshold
  • the speed of the relay terminal is lower than a third threshold
  • the load of the relay terminal is lower than the fourth threshold.
  • processor is also used to read the computer program in the memory and perform the following operations:
  • the relay network When the relay network only supports a single path, select a relay terminal from the relay terminals satisfying the first condition as the last-hop relay terminal to be accessed;
  • one or more relay terminals are selected from the relay terminals satisfying the first condition as the last-hop relay terminal to be accessed.
  • An embodiment of the present disclosure also provides a relay selection device, which includes:
  • a sending unit configured to send a relay discovery message to the first terminal, where the relay discovery message carries first indication information
  • the first terminal is a remote terminal and/or a terminal capable of relaying; the first indication information is used to assist the first terminal in selecting a last-hop relay terminal to be accessed.
  • An embodiment of the present disclosure also provides a terminal, which is a relay terminal, including a memory, a transceiver, and a processor:
  • the memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations:
  • the first terminal is a remote terminal and/or a terminal capable of relaying; the first indication information is used to assist the first terminal in selecting a last-hop relay terminal to be accessed.
  • the first indication information includes at least one of the following:
  • the relay type currently used by the relay terminal is the relay type currently used by the relay terminal.
  • the target object includes: a target terminal and/or a target network device.
  • the identification information of the target terminal includes: a direct communication target address of the target terminal;
  • the identification information of the target network device includes: public land mobile network PLMN ID, and/or, cell ID.
  • the current status information of the relay terminal includes at least one of the following:
  • An embodiment of the present disclosure further provides a processor-readable storage medium, where a computer program is stored in the processor-readable storage medium, and the computer program is used to cause the processor to execute the above method.
  • the relay discovery message sent by the relay terminal carries specific first indication information, and the terminal with the relay function and/or the remote terminal according to the first indication The information selects the last hop relay terminal to be accessed, filling the gap in the design of the relay discovery message in the multi-hop relay scenario, so that a multi-hop relay system composed of sidelink relays can be realized.
  • FIG. 1 shows a schematic diagram of a relay from a terminal to a network device in the related art
  • FIG. 2 shows a schematic diagram of a multi-hop relay from a terminal to a network device in an embodiment of the present disclosure
  • FIG. 3 shows one of the flow charts of the steps of the relay selection method provided by the embodiment of the present disclosure
  • FIG. 4 shows the second flowchart of the steps of the relay selection method provided by the embodiment of the present disclosure
  • FIG. 5 shows a schematic diagram of Example 1 provided by an embodiment of the present disclosure
  • FIG. 6 shows a schematic diagram of Example 2 provided by an embodiment of the present disclosure
  • FIG. 7 shows one of the schematic structural diagrams of a relay selection device provided by an embodiment of the present disclosure
  • FIG. 8 shows one of the schematic structural diagrams of a terminal provided by an embodiment of the present disclosure
  • FIG. 9 shows the second structural schematic diagram of a relay selection device provided by an embodiment of the present disclosure.
  • FIG. 10 shows a second structural schematic diagram of a terminal provided by an embodiment of the present disclosure.
  • Fig. 2 shows a block diagram of a wireless communication system to which embodiments of the present disclosure are applicable.
  • the wireless communication system includes a remote terminal 11 , a multi-hop relay terminal 12 and a network device 13 .
  • the remote terminal 11 and the relay terminal 12 may also be referred to as terminal equipment or user equipment (User Equipment, UE).
  • UE User Equipment
  • the network device 13 can be a base station, a centralized unit (Central Unit, CU), a distributed unit (Distributed Unit, DU) or a core network.
  • the base station in the system is taken as an example, but the specific type of the base station is not limited.
  • the applicable system may be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet Wireless business (general packet radio service, GPRS) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, Long term evolution advanced (LTE-A) system, universal mobile telecommunications system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G new air interface (New Radio, NR) system, etc.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet Wireless business
  • long term evolution long term evolution
  • LTE long term evolution
  • LTE frequency division duplex frequency division duplex
  • TDD time division duplex
  • LTE-A Long term evolution advanced
  • UMTS universal mobile telecommunications
  • the terminal device involved in this embodiment of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem.
  • the name of the terminal equipment may be different.
  • the terminal equipment may be called User Equipment (User Equipment, UE).
  • the wireless terminal device can communicate with one or more core networks (Core Network, CN) via the radio access network (Radio Access Network, RAN), and the wireless terminal device can be a mobile terminal device, such as a mobile phone (or called a "cellular "telephones) and computers with mobile terminal equipment, such as portable, pocket, hand-held, computer built-in or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network.
  • CN Core Network
  • RAN Radio Access Network
  • RAN Radio Access Network
  • the wireless terminal device can be a mobile terminal device, such as a mobile phone (or called a "cellular "telephones) and computers with mobile terminal equipment, such as portable, pocket, hand-held, computer built-in or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network.
  • PCS Personal Communication Service
  • SIP Session Initiated Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • Wireless terminal equipment can also be called system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point , remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), and user device (user device), which are not limited in this embodiment of the application.
  • the network device involved in the embodiment of the present application may be a base station, and the base station may support multiple cells that provide services for the terminal.
  • the base station can also be called an access point, or it can be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names.
  • the network device can be used to interchange received over-the-air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, which can include IP Communications network.
  • IP Internet Protocol
  • Network devices may also coordinate attribute management for the air interface.
  • the network equipment involved in the embodiment of the present application may be a network equipment (Base Transceiver Station, BTS) in Global System for Mobile communications (GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA) ), it can also be a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or it can be an evolved network device in a long-term evolution (long term evolution, LTE) system (evolutional Node B, eNB or e-NodeB), 5G base station (gNB) in the 5G network architecture (next generation system), can also be a home evolved base station (Home evolved Node B, HeNB), relay node (relay node) , a home base station (femto), a pico base station (pico), etc., are not limited in this embodiment of the present application.
  • a network device may include a centralized unit (centralized unit, CU) node and a distributed unit (distributed unit, DU) node,
  • an embodiment of the present disclosure provides a method for selecting a relay, which includes:
  • Step 301 the first terminal receives a relay discovery message sent by at least one relay terminal, and the relay discovery message carries first indication information;
  • Step 302 the first terminal selects a last-hop relay terminal to be accessed according to the first indication information carried in the relay discovery message;
  • the first terminal is a remote terminal and/or a terminal capable of relaying.
  • the relay discovery message sent by the relay terminal carries specific first indication information, and the terminal with the relay function and/or the remote terminal selects the last hop to access according to the first indication information.
  • the relay terminal fills the gap in the design of relay discovery messages in the multi-hop relay scenario, so that a multi-hop relay system composed of sidelink relays can be realized.
  • each relay terminal sends a relay discovery message, and each relay discovery message carries corresponding first indication information; the first indication information corresponds to the relay terminal.
  • relay terminal 1 sends relay discovery message 1
  • relay discovery message 1 carries first indication information corresponding to relay terminal 1
  • relay terminal 2 sends relay discovery message 2
  • relay discovery message 2 carries the first indication information corresponding to relay terminal 1;
  • the first indication information includes at least one of the following:
  • the relay type currently used by the relay terminal for example, L2 relay and/or L3 relay;
  • System information required to access the target object for example, necessary system information required to access the target network device, such as Universal Access Control (UAC) information.
  • UAC Universal Access Control
  • the number of paths corresponding to the above-mentioned relay terminal is greater than or equal to 1, that is, the relay terminal may only support a single path, or the relay terminal may also support multiple paths, which are not specifically limited here.
  • the target object includes: a target terminal and/or a target network device.
  • a target terminal For a UE-to-UE (UE-to-UE, U2U) multi-hop relay scenario, the target object is a target terminal; for a U2N multi-hop relay scenario, the target object is a target network device.
  • the identification information of the target terminal includes: a direct communication target address (such as an L2 target address) of the target terminal; or, a newly introduced target identifier;
  • the identity information of the target network device includes: Public Land Mobile Network Identity (Public LandMobileNetwork Identity, PLMN ID), and/or, cell identity (Identity, ID).
  • Public Land Mobile Network Identity Public Land MobileNetwork Identity, PLMN ID
  • cell identity Identity, ID
  • the current status information of the relay terminal includes at least one of the following:
  • the method when the first terminal is a terminal capable of relaying, before step 302, the method further includes:
  • the terminal having the relay capability judges whether to activate the relay capability
  • a terminal with relay capability determines whether to activate the relay capability, it can refer to the relay discovery message sent by the relay terminal connected to the terminal, or it can be judged by the terminal with relay capability itself, or by The terminal with the relay capability is determined according to the instruction of the network or the relay terminal, which is not specifically limited here.
  • the method when the first terminal is a terminal capable of relaying, before step 302, the method further includes:
  • the terminal having the relay capability determines whether a relay connection can be established with the relay terminal corresponding to the relay discovery message according to the relay discovery message.
  • the terminal having the relay capability determines whether a relay connection can be established with the relay terminal corresponding to the relay discovery message according to the relay discovery message, including:
  • the terminal capable of relaying can establish a relay connection with a relay terminal satisfying a first condition; wherein the first condition includes at least one of the following:
  • the terminal capable of relaying supports the relay type currently used by the relay terminal indicated by the relay discovery message
  • the load information of the relay terminal indicated by the relay discovery message satisfies a second condition
  • the current state information of the relay terminal indicated by the relay discovery message satisfies the third condition.
  • the second condition includes: the load of the relay terminal is lower than a first threshold.
  • the third condition includes at least one of the following:
  • the power of the relay terminal is higher than the second threshold
  • the speed of the relay terminal is lower than a third threshold
  • the load of the relay terminal is lower than the fourth threshold.
  • the first terminal receives multiple relay discovery messages, it judges whether a relay connection can be established with the relay terminal corresponding to the relay discovery message according to the relay discovery messages respectively.
  • step 302 includes:
  • the terminal with the relay capability selects a relay terminal from the relay terminals satisfying the first condition as the last-hop relay terminal to be accessed; specifically How to select a relay terminal depends on the terminal's implementation.
  • the terminal with relay capability selects one or more relay terminals from the relay terminals satisfying the first condition as the last-hop relay terminal to be accessed .
  • the remote terminal when the first terminal is a remote terminal, the remote terminal needs to consider the first indication information carried in the relay discovery message when selecting the last-hop relay terminal to be accessed; In other words, when the remote terminal selects the last hop relay terminal to be accessed, the factors to be considered include one or a combination of the following:
  • the relay type currently used by the relay terminal for example, L2 relay and/or L3 relay;
  • the current status information of the relay terminal for example, the moving speed and power of the relay terminal;
  • System information required to access the target object for example, necessary system information required to access the target network device, such as UAC information.
  • the relay discovery message sent by the relay terminal carries specific first indication information, and the terminal with the relay function and/or the remote terminal selects the The last-hop relay terminal fills the gap in the design of relay discovery messages in the multi-hop relay scenario, so that a multi-hop relay system composed of sidelink relays can be realized.
  • the embodiment of the present disclosure also provides a relay selection method, the method includes:
  • Step 401 the relay terminal sends a relay discovery message to the first terminal, and the relay discovery message carries first indication information;
  • the first terminal is a remote terminal and/or a terminal capable of relaying; the first indication information is used to assist the first terminal in selecting a last-hop relay terminal to be accessed.
  • the first indication information includes at least one of the following:
  • the relay type currently used by the relay terminal for example, L2 relay and/or L3 relay;
  • System information required to access the target object for example, necessary system information required to access the target network device, such as UAC information.
  • the number of paths corresponding to the above-mentioned relay terminal is greater than or equal to 1, that is, the relay terminal may only support a single path, or the relay terminal may also support multiple paths, which are not specifically limited here.
  • the target object includes: a target terminal and/or a target network device.
  • the identification information of the target terminal includes: a direct communication target address (such as an L2 target address) of the target terminal; or, a newly introduced target identifier;
  • the identification information of the target network device includes: PLMN ID, and/or, cell ID.
  • the current status information of the relay terminal includes at least one of the following:
  • the relay discovery message sent by the relay terminal carries specific first indication information, and the terminal with the relay function and/or the remote terminal selects the last hop to access according to the first indication information.
  • the relay terminal fills the gap in the design of relay discovery messages in the multi-hop relay scenario, so that a multi-hop relay system composed of sidelink relays can be realized.
  • Example 1 the remote UE selects the last-hop relay UE according to the relay discovery message sent by the relay UE, as shown in Figure 5:
  • Step 51 the relay UE establishes a connection with the target network device or the target UE;
  • relay UE1 there are three relay UEs: relay UE1, relay UE2 and relay UE3.
  • the relay UE2 and the relay UE3 directly establish a connection with the target network device or the target UE.
  • the relay UE1 establishes a connection with the target network device or the target UE through the relay UE3.
  • Step 52 the relay UE1, the relay UE2 and the relay UE3 respectively send a relay discovery message
  • the remote UE can receive the relay discovery message sent by the relay UE1, the relay UE2 and the relay UE3.
  • Each relay discovery message carries first indication information respectively, and the first indication information includes but is not limited to one or a combination of the following information:
  • the relay type currently used by the relay terminal for example, L2 relay and/or L3 relay;
  • the current status information of the relay terminal for example, the moving speed and power of the relay terminal;
  • System information required to access the target object for example, necessary system information required to access the target network device, such as UAC information.
  • Step 53 the remote UE performs last-hop relay UE selection; the remote UE selects the last-hop relay UE to be accessed according to the relay discovery message sent by the relay UE1, the relay UE2 and the relay UE3 , the factors to be considered include one or a combination of the following:
  • the relay type currently used by the relay terminal for example, L2 relay and/or L3 relay;
  • the current status information of the relay terminal for example, the moving speed and power of the relay terminal;
  • System information required to access the target object for example, necessary system information required to access the target network device, such as UAC information.
  • the remote UE may select the relay UE with the least hop count according to the "minimum hop count required for the relay UE to access the target network device (U2N relay)" carried in the relay discovery message. For example, in this example, it takes 1 hop for relay UE2 and relay UE3 to access the target network device or target UE, but it takes 2 hops for relay UE1 to access the target network device, so the remote UE can preferentially choose relay UE2 or Relay UE3 access.
  • U2N relay target network device
  • whether to select UE2 or UE3 may depend on the implementation of the remote UE, and may further combine other information in the first indication information, such as the channel quality between the relay terminal and the target network device, if the UE2 and the target network device If the channel quality is better than the channel quality between UE3 and the target network device, the remote UE may choose to relay UE2 to access.
  • Example 2 the UE with the relay function selects the last-hop relay terminal according to the relay discovery message sent by the relay UE, as shown in Figure 6:
  • Step 61 the relay UE establishes a connection with the target network device or the target UE;
  • relay UE1 there are three relay UEs: relay UE1, relay UE2 and relay UE3.
  • the relay UE2 and the relay UE3 directly establish a connection with the target network device or the target UE.
  • the relay UE1 establishes a connection with the target network device or the target UE through the relay UE3.
  • Step 62 the relay UE1 and the relay UE2 send relay discovery messages respectively;
  • the UE with the relay function can receive the relay discovery message sent by the relay UE1 and the relay UE2.
  • Each relay discovery message carries first indication information respectively, and the first indication information includes but is not limited to one or a combination of the following information:
  • the relay type currently used by the relay terminal for example, L2 relay and/or L3 relay;
  • the current status information of the relay terminal for example, the moving speed and power of the relay terminal;
  • the system information required to access the target object for example, the necessary system information required to access the target network device, such as UAC information.
  • the relay discovery message may also carry a direct communication interface channel quality threshold for judging the activation of the relay function.
  • Step 63 the UE with the relay function performs last-hop relay UE selection
  • the UE with the specific relay function judges whether to activate the relay function and/or whether to establish a relay connection with the relay UE according to the relay discovery message sent by the relay UE.
  • the condition for the UE with the relay function to determine whether to establish a relay connection with the relay UE may be but not limited to one or a combination of the following:
  • the UE with the relay function supports the relay working mode currently used by the relay UE indicated in the current relay discovery message of the relay UE (such as L2 relay, L3 relay);
  • the load information of the relay UE indicated in the relay discovery message of the current relay UE or the status information of the relay UE meets certain conditions, such as the load is lower than a certain threshold, or the speed is lower than a certain threshold, or the power is higher than a certain threshold. a threshold.
  • the UE with the relay function can only select one relay UE to access from multiple relay UEs that meet the conditions, and the specific selection depends on the UE's accomplish. If the multi-hop relay network can support multi-path, the UE with the relay function can select and establish a connection with multiple relay UEs that meet the conditions.
  • the relay UE1 For example, if the "relay type currently used by the relay UE" carried in the relay discovery message of the relay UE1 is an L2 relay, if the "the relay type currently used by the relay UE” carried in the relay discovery message of the relay UE2 If the "relay type currently used by the UE” is L3 relay, and the UE with the relay function only supports L2 relay, the relay UE1 will be selected for access, and the relay UE1 will be selected as its last-hop relay .
  • the UE with the relay function discovers multiple relay UEs that meet the conditions at the same time. If the multi-hop relay network only supports a single path, the UE with the relay function can select one of the relay UEs to access , how to choose depends on the implementation of the UE with the relay function. If the multi-hop relay network can support multi-path, the UE with the relay function can choose to establish connections with multiple relay UEs.
  • an embodiment of the present disclosure also provides a relay selection device, including:
  • a receiving unit 701 configured to receive a relay discovery message sent by at least one relay terminal, where the relay discovery message carries first indication information
  • a selection unit 702 configured to select a last-hop relay terminal to be accessed according to the first indication information carried in the relay discovery message
  • the first terminal is a remote terminal and/or a terminal capable of relaying.
  • the first indication information includes at least one of the following:
  • the relay type currently used by the relay terminal is the relay type currently used by the relay terminal.
  • the target object includes: a target terminal and/or a target network device.
  • the identification information of the target terminal includes: a direct communication target address of the target terminal;
  • the identification information of the target network device includes: PLMN ID, and/or, cell ID.
  • the current status information of the relay terminal includes at least one of the following:
  • the device when the first terminal is a terminal capable of relaying, the device further includes:
  • the first judging unit is configured to judge whether to activate the relay capability.
  • the device when the first terminal is a terminal capable of relaying, the device further includes:
  • the second judging unit is configured to judge whether a relay connection can be established with the relay terminal corresponding to the relay discovery message according to the relay discovery message.
  • the second judging unit includes:
  • the first judging subunit is configured to determine, according to the relay discovery message, that the terminal capable of relaying can establish a relay connection with a relay terminal satisfying a first condition; wherein the first condition includes the following At least one of:
  • the terminal capable of relaying supports the relay type currently used by the relay terminal indicated by the relay discovery message
  • the load information of the relay terminal indicated by the relay discovery message satisfies a second condition
  • the current state information of the relay terminal indicated by the relay discovery message satisfies the third condition.
  • the second condition includes: the load of the relay terminal is lower than a first threshold.
  • the third condition includes at least one of the following:
  • the power of the relay terminal is higher than the second threshold
  • the speed of the relay terminal is lower than a third threshold
  • the load of the relay terminal is lower than the fourth threshold.
  • the selection unit includes:
  • the first selection subunit is configured to select a relay terminal from relay terminals satisfying the first condition as a relay terminal to be accessed when the relay network only supports a single path.
  • the second selection subunit is configured to select one or more relay terminals from the relay terminals satisfying the first condition by the terminal capable of relaying as the relay terminal to be connected when the relay network supports multipath.
  • the incoming last hop relay terminal is configured to select one or more relay terminals from the relay terminals satisfying the first condition by the terminal capable of relaying as the relay terminal to be connected when the relay network supports multipath.
  • the relay discovery message sent by the relay terminal carries specific first indication information, and the terminal with the relay function and/or the remote terminal selects the last hop to access according to the first indication information.
  • the relay terminal fills the gap in the design of relay discovery messages in the multi-hop relay scenario, so that a multi-hop relay system composed of sidelink relays can be realized.
  • the relay selection device provided by the embodiment of the present disclosure is a device capable of executing the above relay selection method, and all embodiments of the above relay selection method are applicable to the device, and can achieve the same or similar Beneficial effect.
  • an embodiment of the present disclosure also provides a terminal, the terminal is a first terminal, including a memory 820, a transceiver 810, and a processor 800:
  • the memory 820 is used to store computer programs; the transceiver 810 is used to send and receive data under the control of the processor 800; the processor 800 is used to read the computer programs in the memory 820 and perform the following operations:
  • the first terminal is a remote terminal and/or a terminal capable of relaying.
  • the first indication information includes at least one of the following:
  • the relay type currently used by the relay terminal is the relay type currently used by the relay terminal.
  • the target object includes: a target terminal and/or a target network device.
  • the identification information of the target terminal includes: a direct communication target address of the target terminal;
  • the identification information of the target network device includes: PLMN ID, and/or, cell ID.
  • the current status information of the relay terminal includes at least one of the following:
  • the processor is further configured to read a computer program in the memory and perform the following operations:
  • the processor is further configured to read a computer program in the memory and perform the following operations:
  • the relay discovery message it is judged whether a relay connection can be established with the relay terminal corresponding to the relay discovery message.
  • the processor is further configured to read a computer program in the memory and perform the following operations:
  • the terminal capable of relaying can establish a relay connection with a relay terminal satisfying a first condition; wherein the first condition includes at least one of the following:
  • the terminal capable of relaying supports the relay type currently used by the relay terminal indicated by the relay discovery message
  • the load information of the relay terminal indicated by the relay discovery message satisfies a second condition
  • the current state information of the relay terminal indicated by the relay discovery message satisfies the third condition.
  • the second condition includes: the load of the relay terminal is lower than a first threshold.
  • the third condition includes at least one of the following:
  • the power of the relay terminal is higher than the second threshold
  • the speed of the relay terminal is lower than a third threshold
  • the load of the relay terminal is lower than the fourth threshold.
  • the processor is further configured to read a computer program in the memory and perform the following operations:
  • the relay network When the relay network only supports a single path, select a relay terminal from the relay terminals satisfying the first condition as the last-hop relay terminal to be accessed;
  • one or more relay terminals are selected from the relay terminals satisfying the first condition as the last-hop relay terminal to be accessed.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 800 and various circuits of the memory represented by the memory 820 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein.
  • the bus interface provides the interface.
  • Transceiver 810 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, fiber optic cables, etc. Transmission medium.
  • the user interface 830 may also be an interface capable of connecting externally and internally to required equipment, and the connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 800 when performing operations.
  • the processor 800 may be a central processing unit (Central Processing Unit, CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable Logic device (Complex Programmable Logic Device, CPLD), the processor can also adopt a multi-core architecture.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • CPLD Complex Programmable Logic Device
  • the processor is used to execute any one of the methods provided in the embodiments of the present application according to the obtained executable instructions by calling the computer program stored in the memory.
  • the processor and memory may also be physically separated.
  • the relay discovery message sent by the relay terminal carries specific first indication information, and the terminal with the relay function and/or the remote terminal selects the last hop to access according to the first indication information.
  • the relay terminal fills the gap in the design of relay discovery messages in the multi-hop relay scenario, so that a multi-hop relay system composed of sidelink relays can be realized.
  • the terminal provided by the embodiment of the present disclosure is a terminal capable of executing the above relay selection method, and all embodiments of the above relay selection method are applicable to the terminal, and can achieve the same or similar beneficial effects.
  • an embodiment of the present disclosure also provides a relay selection device, which includes:
  • a sending unit 901 configured to send a relay discovery message to the first terminal, where the relay discovery message carries first indication information
  • the first terminal is a remote terminal and/or a terminal capable of relaying; the first indication information is used to assist the first terminal in selecting a last-hop relay terminal to be accessed.
  • the first indication information includes at least one of the following:
  • the relay type currently used by the relay terminal is the relay type currently used by the relay terminal.
  • the target object includes: a target terminal and/or a target network device.
  • the identification information of the target terminal includes: a direct communication target address of the target terminal;
  • the identification information of the target network device includes: PLMN ID, and/or, cell ID.
  • the current status information of the relay terminal includes at least one of the following:
  • the relay discovery message sent by the relay terminal carries specific first indication information, and the terminal with the relay function and/or the remote terminal selects the last hop to access according to the first indication information.
  • the relay terminal fills the gap in the design of relay discovery messages in the multi-hop relay scenario, so that a multi-hop relay system composed of sidelink relays can be realized.
  • the relay selection device provided by the embodiment of the present disclosure is a device capable of executing the above relay selection method, and all embodiments of the above relay selection method are applicable to the device, and can achieve the same or similar Beneficial effect.
  • an embodiment of the present disclosure also provides a terminal, which is a relay terminal, including a memory 120, a transceiver 110, and a processor 100:
  • the memory 120 is used to store computer programs; the transceiver 110 is used to send and receive data under the control of the processor 100; the processor 100 is used to read the computer programs in the memory 120 and perform the following operations:
  • the first terminal is a remote terminal and/or a terminal capable of relaying; the first indication information is used to assist the first terminal in selecting a last-hop relay terminal to be accessed.
  • the first indication information includes at least one of the following:
  • the relay type currently used by the relay terminal is the relay type currently used by the relay terminal.
  • the target object includes: a target terminal and/or a target network device.
  • the identification information of the target terminal includes: a direct communication target address of the target terminal;
  • the identification information of the target network device includes: PLMN ID, and/or, cell ID.
  • the current status information of the relay terminal includes at least one of the following:
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 100 and various circuits of the memory represented by the memory 120 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein.
  • the bus interface provides the interface.
  • Transceiver 110 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, fiber optic cables, etc. Transmission medium.
  • the user interface 130 may also be an interface capable of connecting externally and internally to required equipment, and the connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 100 is responsible for managing the bus architecture and general processing, and the memory 120 can store data used by the processor 100 when performing operations.
  • the processor 100 may be a CPU, ASIC, FPGA or CPLD, and the processor may also adopt a multi-core architecture.
  • the processor is used to execute any one of the methods provided in the embodiments of the present application according to the obtained executable instructions by calling the computer program stored in the memory.
  • the processor and memory may also be physically separated.
  • the relay discovery message sent by the relay terminal carries specific first indication information, and the terminal with the relay function and/or the remote terminal selects the last hop to access according to the first indication information.
  • the relay terminal fills the gap in the design of relay discovery messages in the multi-hop relay scenario, so that a multi-hop relay system composed of sidelink relays can be realized.
  • the terminal provided by the embodiment of the present disclosure is a terminal capable of executing the above relay selection method, and all embodiments of the above relay selection method are applicable to the terminal, and can achieve the same or similar beneficial effects.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.
  • the integrated unit is implemented in the form of a software function unit and sold or used as an independent product, it can be stored in a processor-readable storage medium.
  • the essence of the technical solution of this application or the part that contributes to the related technology or all or 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.
  • a computer device which may be a personal computer, a server, or a network device, etc.
  • a processor processor
  • 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 disc and other media that can store program codes. .
  • An embodiment of the present disclosure further provides a processor-readable storage medium, where a computer program is stored in the processor-readable storage medium, and the computer program is used to enable the processor to execute the above relay selection method;
  • the processor-readable storage medium can be any available medium or data storage device that the processor can access, including but not limited to magnetic storage (such as floppy disk, hard disk, magnetic tape, magneto-optical disk (Magneto-Optical Disk, MO), etc.), Optical storage (such as Compact Disk (CD), Digital Video Disc (Digital Versatile Disc, DVD), Blu-ray Disc (Blu-ray Disc, BD), High-Definition Versatile Disc (HVD), etc.), and Semiconductor memory (such as ROM, Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), non-volatile memory ( NAND FLASH), Solid State Disk (Solid State Disk or Solid State Drive, SSD)), etc.
  • the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) having computer-usable program code embodied therein.
  • processor-executable instructions may also be stored in a processor-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, such that the instructions stored in the processor-readable memory produce a manufacturing product, the instruction device realizes the functions specified in one or more procedures of the flow chart and/or one or more blocks of the block diagram.
  • processor-executable instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented
  • the executed instructions provide steps for implementing the functions specified in the procedure or procedures of the flowchart and/or the block or blocks of the block diagrams.
  • the division of the above modules is only a division of logical functions, and may be fully or partially integrated into a physical entity or physically separated during actual implementation.
  • these modules can all be implemented in the form of calling software through processing elements; they can also be implemented in the form of hardware; some modules can also be implemented in the form of calling software through processing elements, and some modules can be implemented in the form of hardware.
  • the determining module may be a separate processing element, or may be integrated in a chip of the above-mentioned device.
  • it may be stored in the memory of the above-mentioned device in the form of program code, and a certain processing element of the above-mentioned device may Call and execute the functions of the modules identified above.
  • each step of the above method or each module above can be completed by an integrated logic circuit of hardware in the processor element or an instruction in the form of software.
  • each module, unit, subunit or submodule may be one or more integrated circuits configured to implement the above method, for example: one or more specific integrated circuits (Application Specific Integrated Circuit, ASIC), or, one or Multiple microprocessors (digital signal processor, DSP), or, one or more field programmable gate arrays (Field Programmable Gate Array, FPGA), etc.
  • ASIC Application Specific Integrated Circuit
  • DSP digital signal processor
  • FPGA Field Programmable Gate Array
  • the processing element may be a general-purpose processor, such as a central processing unit (Central Processing Unit, CPU) or other processors that can call program codes.
  • these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip

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Abstract

本公开提供一种中继选择方法、装置及终端,该中继选择方法包括:第一终端接收至少一个中继终端发送的中继发现消息,所述中继发现消息中携带第一指示信息;所述第一终端根据所述中继发现消息中携带的第一指示信息选择要接入的上一跳中继终端;其中,所述第一终端为远端终端和/或具备中继能力的终端。

Description

中继选择方法、装置及终端
相关申请的交叉引用
本公开主张在2021年07月16日在中国提交的中国专利申请号No.202110807060.4的优先权,其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域,尤其是指一种中继选择方法、装置及终端。
背景技术
传统的无线通信采用蜂窝网络通信方式,即终端和网络侧设备通过通用用户和网络的接口(User to Network Interface,Uu接口)进行上下行数据和/或控制信息的传输。
直接通信是指邻近的终端可以在近距离范围内通过直接通信链路(也称为Sidelink,旁路或者PC5)进行数据传输的方式。Sidelink对应的无线接口称为直接通信接口(也称为Sidelink接口,旁路接口或者PC5接口)。
为了扩展网络覆盖,一种解决方案是引入终端到网络设备(UE-to-Network,U2N)的中继(UE-to-Network Relay,后面简称中继)。若中继和远端终端之间使用直接通信接口,那么该中继也称为sidelink中继(SL relay)。中继本身可以是具有中继功能的终端。如图1所示,对于UE-to-Network中继,中继终端12和网络设备13之间的接口使用Uu接口,和被中继终端(可简称远端终端)11之间的接口使用Sidelink接口。中继和网络之间的链路(Uu link)对远端终端而言可以称为回程链路(Backhaul link)。
一般情况下,使用一跳中继就够用了,因此目前对于sidelink中继,只支持一跳中继,即远端终端通过sidelink接入中继终端,中继终端和网络设备可以直接连接。但是对于某些特殊场景,比如地震场景,可能整个网络瘫痪,那么可能就需要使用多跳中继。即如果远端终端无法通过一个中继连接到网络,那么就可能引入多跳中继。而多跳中继场景下如何设计中继发现消息目前还没有相应的解决方案。
发明内容
本公开实施例的目的在于提供一种中继选择方法、装置及终端,以解决相关技术中多跳中继场景中如何设计中继发现消息的问题。
为了解决上述问题,本公开实施例提供一种中继选择方法,该方法包括:
第一终端接收至少一个中继终端发送的中继发现消息,所述中继发现消息中携带第一指示信息;
所述第一终端根据所述中继发现消息中携带的第一指示信息选择要接入的上一跳中继终端;
其中,所述第一终端为远端终端和/或具备中继能力的终端。
其中,所述第一指示信息包括下述至少一项:
通过所述中继终端能够接入的目标对象的标识信息;
通过所述中继终端对应的每条路径能够接入的目标对象的标识信息;
所述中继终端接入到目标对象所需的最小跳数;
所述中继终端对应的每条路径上,所述中继终端接入到目标对象所需的跳数;
所述中继终端对应的每条路径上,所述中继终端和该中继终端的上一跳节点之间的信道质量;
所述中继终端对应的每条路径上,每一跳的两个节点之间的信道质量;
所述中继终端对应的每条路径上,所述中继终端的负荷信息;
所述中继终端对应的每条路径上,每一跳对应的中继终端的负荷信息;
所述中继终端当前使用的中继类型;
所述中继终端当前的状态信息;
接入目标对象所需的系统信息。
其中,所述目标对象包括:目标终端和/或目标网络设备。
其中,所述目标终端的标识信息包括:目标终端的直接通信目标地址;
和/或,
所述目标网络设备的标识信息包括:公共陆地移动网PLMN ID,和/或,小区ID。
其中,所述中继终端当前的状态信息包括下述至少一项:
所述中继终端的电量信息;
所述中继终端的负荷信息;
所述中继终端的速度。
其中,在第一终端为具备中继能力的终端的情况下,所述第一终端根据所述中继发现消息中携带的第一指示信息选择要接入的上一跳中继终端之前,所述方法还包括:
所述具备中继能力的终端判断是否激活中继能力。
其中,在第一终端为具备中继能力的终端的情况下,所述第一终端根据所述中继发现消息中携带的第一指示信息选择要接入的上一跳中继终端之前,所述方法还包括:
所述具备中继能力的终端根据所述中继发现消息,判断是否能够与所述中继发现消息对应的中继终端建立中继连接。
其中,所述具备中继能力的终端根据所述中继发现消息,判断是否能够与所述中继发现消息对应的所述中继终端建立中继连接,包括:
根据所述中继发现消息,确定所述具备中继能力的终端能够和满足第一条件的中继终端建立中继连接;其中,所述第一条件包括下述至少一项:
具备中继能力的终端支持所中继发现消息指示的所述中继终端当前使用的中继类型;
所述中继发现消息指示的中继终端的负荷信息满足第二条件;
所述中继发现消息指示的中继终端的当前状态信息满足第三条件。
其中,所述第二条件包括:所述中继终端的负荷低于第一门限。
其中,所述第三条件包括下述至少一项:
所述中继终端的电量高于第二门限;
所述中继终端的速度低于第三门限;
所述中继终端的负荷低于第四门限。
其中,所述第一终端根据所述中继发现消息中携带的第一指示信息选择要接入的上一跳中继终端,包括:
在中继网络仅支持单路径的情况下,所述具备中继能力的终端从满足所 述第一条件的中继终端中选择一个中继终端作为要接入的上一跳中继终端;
或者,
在中继网络支持多路径的情况下,所述具备中继能力的终端从满足所述第一条件的中继终端中选择一个或多个中继终端作为要接入的上一跳中继终端。
本公开实施例还提供一种中继选择方法,该方法包括:
中继终端向第一终端发送中继发现消息,所述中继发现消息中携带第一指示信息;
其中,所述第一终端为远端终端和/或具备中继能力的终端;所述第一指示信息用于辅助所述第一终端选择要接入的上一跳中继终端。
其中,所述第一指示信息包括下述至少一项:
通过所述中继终端能够接入的目标对象的标识信息;
通过所述中继终端对应的每条路径能够接入的目标对象的标识信息;
所述中继终端接入到目标对象所需的最小跳数;
所述中继终端对应的每条路径上,所述中继终端接入到目标对象所需的跳数;
所述中继终端对应的每条路径上,所述中继终端和该中继终端的上一跳节点之间的信道质量;
所述中继终端对应的每条路径上,每一跳的两个节点之间的信道质量;
所述中继终端对应的每条路径上,所述中继终端的负荷信息;
所述中继终端对应的每条路径上,每一跳对应的中继终端的负荷信息;
所述中继终端当前使用的中继类型;
所述中继终端当前的状态信息;
接入目标对象所需的系统信息。
其中,所述目标对象包括:目标终端和/或目标网络设备。
其中,所述目标终端的标识信息包括:目标终端的直接通信目标地址;
和/或,
所述目标网络设备的标识信息包括:公共陆地移动网PLMN ID,和/或,小区ID。
其中,所述中继终端当前的状态信息包括下述至少一项:
所述中继终端的电量信息;
所述中继终端的负荷信息;
所述中继终端的速度。
本公开实施例还提供一种中继选择装置,包括:
接收单元,用于接收至少一个中继终端发送的中继发现消息,所述中继发现消息中携带第一指示信息;
选择单元,用于根据所述中继发现消息中携带的第一指示信息选择要接入的上一跳中继终端;
其中,所述第一终端为远端终端和/或具备中继能力的终端。
本公开实施例还提供一种终端,所述终端为第一终端,包括存储器,收发机,处理器:
存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并执行以下操作:
接收至少一个中继终端发送的中继发现消息,所述中继发现消息中携带第一指示信息;
根据所述中继发现消息中携带的第一指示信息选择要接入的上一跳中继终端;
其中,所述第一终端为远端终端和/或具备中继能力的终端。
其中,所述第一指示信息包括下述至少一项:
通过所述中继终端能够接入的目标对象的标识信息;
通过所述中继终端对应的每条路径能够接入的目标对象的标识信息;
所述中继终端接入到目标对象所需的最小跳数;
所述中继终端对应的每条路径上,所述中继终端接入到目标对象所需的跳数;
所述中继终端对应的每条路径上,所述中继终端和该中继终端的上一跳节点之间的信道质量;
所述中继终端对应的每条路径上,每一跳的两个节点之间的信道质量;
所述中继终端对应的每条路径上,所述中继终端的负荷信息;
所述中继终端对应的每条路径上,每一跳对应的中继终端的负荷信息;
所述中继终端当前使用的中继类型;
所述中继终端当前的状态信息;
接入目标对象所需的系统信息。
其中,所述目标对象包括:目标终端和/或目标网络设备。
其中,所述目标终端的标识信息包括:目标终端的直接通信目标地址;
和/或,
所述目标网络设备的标识信息包括:公共陆地移动网PLMN ID,和/或,小区ID。
其中,所述中继终端当前的状态信息包括下述至少一项:
所述中继终端的电量信息;
所述中继终端的负荷信息;
所述中继终端的速度。
其中,所述处理器还用于读取所述存储器中的计算机程序并执行以下操作:
判断是否激活中继能力。
所述处理器还用于读取所述存储器中的计算机程序并执行以下操作:
根据所述中继发现消息,判断是否能够与所述中继发现消息对应的中继终端建立中继连接。
其中,所述处理器还用于读取所述存储器中的计算机程序并执行以下操作:
根据所述中继发现消息,确定所述具备中继能力的终端能够和满足第一条件的中继终端建立中继连接;其中,所述第一条件包括下述至少一项:
具备中继能力的终端支持所中继发现消息指示的所述中继终端当前使用的中继类型;
所述中继发现消息指示的中继终端的负荷信息满足第二条件;
所述中继发现消息指示的中继终端的当前状态信息满足第三条件。
其中,所述第二条件包括:所述中继终端的负荷低于第一门限。
其中,所述第三条件包括下述至少一项:
所述中继终端的电量高于第二门限;
所述中继终端的速度低于第三门限;
所述中继终端的负荷低于第四门限。
其中,所述处理器还用于读取所述存储器中的计算机程序并执行以下操作:
在中继网络仅支持单路径的情况下,从满足所述第一条件的中继终端中选择一个中继终端作为要接入的上一跳中继终端;
或者,
在中继网络支持多路径的情况下,从满足所述第一条件的中继终端中选择一个或多个中继终端作为要接入的上一跳中继终端。
本公开实施例还提供一种中继选择装置,该装置包括:
发送单元,用于向第一终端发送中继发现消息,所述中继发现消息中携带第一指示信息;
其中,所述第一终端为远端终端和/或具备中继能力的终端;所述第一指示信息用于辅助所述第一终端选择要接入的上一跳中继终端。
本公开实施例还提供一种终端,该终端为中继终端,包括存储器,收发机,处理器:
存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并执行以下操作:
向第一终端发送中继发现消息,所述中继发现消息中携带第一指示信息;
其中,所述第一终端为远端终端和/或具备中继能力的终端;所述第一指示信息用于辅助所述第一终端选择要接入的上一跳中继终端。
其中,所述第一指示信息包括下述至少一项:
通过所述中继终端能够接入的目标对象的标识信息;
通过所述中继终端对应的每条路径能够接入的目标对象的标识信息;
所述中继终端接入到目标对象所需的最小跳数;
所述中继终端对应的每条路径上,所述中继终端接入到目标对象所需的跳数;
所述中继终端对应的每条路径上,所述中继终端和该中继终端的上一跳 节点之间的信道质量;
所述中继终端对应的每条路径上,每一跳的两个节点之间的信道质量;
所述中继终端对应的每条路径上,所述中继终端的负荷信息;
所述中继终端对应的每条路径上,每一跳对应的中继终端的负荷信息;
所述中继终端当前使用的中继类型;
所述中继终端当前的状态信息;
接入目标对象所需的系统信息。
其中,所述目标对象包括:目标终端和/或目标网络设备。
其中,所述目标终端的标识信息包括:目标终端的直接通信目标地址;
和/或,
所述目标网络设备的标识信息包括:公共陆地移动网PLMN ID,和/或,小区ID。
其中,所述中继终端当前的状态信息包括下述至少一项:
所述中继终端的电量信息;
所述中继终端的负荷信息;
所述中继终端的速度。
本公开实施例还提供一种处理器可读存储介质,所述处理器可读存储介质存储有计算机程序,所述计算机程序用于使所述处理器执行如上所述的方法。
本公开的上述技术方案至少具有如下有益效果:
本公开实施例的中继选择方法、装置及终端中,中继终端发送的中继发现消息中携带特定的第一指示信息,具备中继功能的终端和/或远端终端根据该第一指示信息选择要接入的上一跳中继终端,填补了多跳中继场景下中继发现消息设计的空白,从而可以实现由sidelink中继组成的多跳中继系统。
附图说明
图1表示相关技术中终端到网络设备的中继示意图;
图2表示本公开实施例中终端到网络设备的多跳中继的示意图;
图3表示本公开实施例提供的中继选择方法的步骤流程图之一;
图4表示本公开实施例提供的中继选择方法的步骤流程图之二;
图5表示本公开实施例提供的示例一的示意图;
图6表示本公开实施例提供的示例二的示意图;
图7表示本公开实施例提供的中继选择装置的结构示意图之一;
图8表示本公开实施例提供的终端的结构示意图之一;
图9表示本公开实施例提供的中继选择装置的结构示意图之二;
图10表示本公开实施例提供的终端的结构示意图之二。
具体实施方式
为使本公开要解决的技术问题、技术方案和优点更加清楚,下面将结合附图及具体实施例进行详细描述。
图2示出本公开实施例可应用的一种无线通信系统的框图。无线通信系统包括远端终端11,多跳中继终端12以及网络设备13。其中,远端终端11和中继终端12也可以称作终端设备或者用户终端(User Equipment,UE)。需要说明的是,在本申请实施例并不限定远端终端11和中继终端12的具体类型。网络设备13可以是基站、集中单元(Central Unit,CU)、分布式单元(Distributed Unit,DU)或核心网,需要说明的是,在本申请实施例中仅以新空口(New Radio,NR)系统中的基站为例,但是并不限定基站的具体类型。
本公开实施例中术语“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这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
本申请实施例中术语“多个”是指两个或两个以上,其它量词与之类似。
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本申请一部分实施例,并不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本申请实施例提供的技术方案可以适用于多种系统,尤其是第五代移动 通信(Fifth-generation,5G)系统。例如适用的系统可以是全球移动通讯(global system of mobile communication,GSM)系统、码分多址(code division multiple access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)通用分组无线业务(general packet radio service,GPRS)系统、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)系统、高级长期演进(long term evolution advanced,LTE-A)系统、通用移动系统(universal mobile telecommunication system,UMTS)、全球互联微波接入(worldwide interoperability for microwave access,WiMAX)系统、5G新空口(New Radio,NR)系统等。这多种系统中均包括终端设备和网络设备。系统中还可以包括核心网部分,例如演进的分组系统(Evolved Packet System,EPS)、5G系统(5G System,5GS)等。
本申请实施例涉及的终端设备,可以是指向用户提供语音和/或数据连通性的设备,具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备等。在不同的系统中,终端设备的名称可能也不相同,例如在5G系统中,终端设备可以称为用户设备(User Equipment,UE)。无线终端设备可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网(Core Network,CN)进行通信,无线终端设备可以是移动终端设备,如移动电话(或称为“蜂窝”电话)和具有移动终端设备的计算机,例如,可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与无线接入网交换语言和/或数据。例如,个人通信业务(Personal Communication Service,PCS)电话、无绳电话、会话发起协议(Session Initiated Protocol,SIP)话机、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)等设备。无线终端设备也可以称为系统、订户单元(subscriber unit)、订户站(subscriber station),移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户装置(user device),本申请实施例中并不限定。
本申请实施例涉及的网络设备,可以是基站,该基站可以支持多个为终 端提供服务的小区。根据具体应用场合不同,基站又可以称为接入点,或者可以是接入网中在空中接口上通过一个或多个扇区与无线终端设备通信的设备,或者其它名称。网络设备可用于将收到的空中帧与网际协议(Internet Protocol,IP)分组进行相互更换,作为无线终端设备与接入网的其余部分之间的路由器,其中接入网的其余部分可包括IP通信网络。网络设备还可协调对空中接口的属性管理。例如,本申请实施例涉及的网络设备可以是全球移动通信系统(Global System for Mobile communications,GSM)或码分多址接入(Code Division Multiple Access,CDMA)中的网络设备(Base Transceiver Station,BTS),也可以是带宽码分多址接入(Wide-band Code Division Multiple Access,WCDMA)中的网络设备(NodeB),还可以是长期演进(long term evolution,LTE)系统中的演进型网络设备(evolutional Node B,eNB或e-NodeB)、5G网络架构(next generation system)中的5G基站(gNB),也可以是家庭演进基站(Home evolved Node B,HeNB)、中继节点(relay node)、家庭基站(femto)、微微基站(pico)等,本申请实施例中并不限定。在一些网络结构中,网络设备可以包括集中单元(centralized unit,CU)节点和分布单元(distributed unit,DU)节点,集中单元和分布单元也可以地理上分开布置。
如图3所示,本公开实施例提供一种中继选择方法,该方法包括:
步骤301,第一终端接收至少一个中继终端发送的中继发现消息,所述中继发现消息中携带第一指示信息;
步骤302,所述第一终端根据所述中继发现消息中携带的第一指示信息选择要接入的上一跳中继终端;
其中,所述第一终端为远端终端和/或具备中继能力的终端。
本公开实施例中,中继终端发送的中继发现消息中携带特定的第一指示信息,具备中继功能的终端和/或远端终端根据该第一指示信息选择要接入的上一跳中继终端,填补了多跳中继场景下中继发现消息设计的空白,从而可以实现由sidelink中继组成的多跳中继系统。
可选地,每个中继终端分别发送中继发现消息,每个中继发现消息分别携带对应的第一指示信息;该第一指示信息与中继终端对应。例如,中继终 端1发送中继发现消息1,中继发现消息1携带与中继终端1对应的第一指示信息;中继终端2发送中继发现消息2,中继发现消息2携带与中继终端2对应的第一指示信息。
在本公开的至少一个可选实施例中,所述第一指示信息包括下述至少一项:
通过所述中继终端能够接入的目标对象的标识信息;
通过所述中继终端对应的每条路径能够接入的目标对象的标识信息;
所述中继终端接入到目标对象所需的最小跳数;
所述中继终端对应的每条路径上,所述中继终端接入到目标对象所需的跳数;
所述中继终端对应的每条路径上,所述中继终端和该中继终端的上一跳节点之间的信道质量;
所述中继终端对应的每条路径上,每一跳的两个节点之间的信道质量;
所述中继终端对应的每条路径上,所述中继终端的负荷信息;
所述中继终端对应的每条路径上,每一跳对应的中继终端的负荷信息;
所述中继终端当前使用的中继类型;例如,L2中继和/或L3中继;
所述中继终端当前的状态信息;
接入目标对象所需的系统信息,例如,接入目标网络设备所需的必要的系统信息,如通用接入控制(Unified Access Control,UAC)信息。
可选地,上述中继终端对应的路径的个数大于或等于1,即中继终端可以仅支持单路径,或者中继终端也可以支持多路径,在此不做具体限定。
作为一个可选实施例,所述目标对象包括:目标终端和/或目标网络设备。对于终端到终端(UE-to-UE,U2U)多跳中继场景,所述目标对象是目标终端;对于U2N多跳中继场景,所述目标对象是目标网络设备。
相应的,所述目标终端的标识信息包括:目标终端的直接通信目标地址(比如L2目标地址);或者,新引入的目标标识;
和/或,所述目标网络设备的标识信息包括:公共陆地移动网标识(Public LandMobileNetwork Identity,PLMN ID),和/或,小区标识(Identity,ID)。
作为另一个可选实施例,所述中继终端当前的状态信息包括下述至少一 项:
所述中继终端的电量信息;
所述中继终端的负荷信息;
所述中继终端的速度。
在本公开的至少一个实施例中,在第一终端为具备中继能力的终端的情况下,步骤302之前,所述方法还包括:
所述具备中继能力的终端判断是否激活中继能力;
需要说明的是,具备中继能力的终端判断是否激活中继能力时可以参考与该终端连接的中继终端发送的中继发现消息,也可以由该具备中继能力的终端自己判断,或者由该具备中继能力的终端根据网络或中继终端的指示判断,在此不做具体限定。
在本公开的至少一个实施例中,在第一终端为具备中继能力的终端的情况下,步骤302之前,所述方法还包括:
所述具备中继能力的终端根据所述中继发现消息,判断是否能够与所述中继发现消息对应的中继终端建立中继连接。
其中,所述具备中继能力的终端根据所述中继发现消息,判断是否能够与所述中继发现消息对应的中继终端建立中继连接,包括:
根据所述中继发现消息,确定所述具备中继能力的终端能够和满足第一条件的中继终端建立中继连接;其中,所述第一条件包括下述至少一项:
具备中继能力的终端支持所中继发现消息指示的所述中继终端当前使用的中继类型;
所述中继发现消息指示的中继终端的负荷信息满足第二条件;
所述中继发现消息指示的中继终端的当前状态信息满足第三条件。
可选地,所述第二条件包括:所述中继终端的负荷低于第一门限。
可选地,所述第三条件包括下述至少一项:
所述中继终端的电量高于第二门限;
所述中继终端的速度低于第三门限;
所述中继终端的负荷低于第四门限。
需要说明的是,若第一终端接收到多个中继发现消息,则分别根据所述 中继发现消息,判断是否能够与所述中继发现消息对应的中继终端建立中继连接。
相应的,步骤302包括:
在中继网络仅支持单路径的情况下,所述具备中继能力的终端从满足所述第一条件的中继终端中选择一个中继终端作为要接入的上一跳中继终端;具体如何选择中继终端取决于该终端的实现。
或者,
在中继网络支持多路径的情况下,所述具备中继能力的终端从满足所述第一条件的中继终端中选择一个或多个中继终端作为要接入的上一跳中继终端。
在本公开的至少一个实施例中,在第一终端为远端终端的情况下,远端终端选择要接入的上一跳中继终端时需要考虑中继发现消息携带的第一指示信息;换言之,远端终端选择要接入的上一跳中继终端时需要考虑的因素包含如下之一或者组合:
通过所述中继终端能够接入的目标对象的标识信息;
通过所述中继终端对应的每条路径能够接入的目标对象的标识信息;
所述中继终端接入到目标对象所需的最小跳数;
所述中继终端对应的每条路径上,所述中继终端接入到目标对象所需的跳数;
所述中继终端对应的每条路径上,所述中继终端和该中继终端的上一跳节点之间的信道质量;
所述中继终端对应的每条路径上,每一跳的两个节点之间的信道质量;
所述中继终端对应的每条路径上,所述中继终端的负荷信息;
所述中继终端对应的每条路径上,每一跳对应的中继终端的负荷信息;
所述中继终端当前使用的中继类型;例如,L2中继和/或L3中继;
所述中继终端当前的状态信息;例如中继终端的移动速度、电量等;
接入目标对象所需的系统信息,例如,接入目标网络设备所需的必要的系统信息,如UAC信息。
综上,本公开实施例中,中继终端发送的中继发现消息中携带特定的第 一指示信息,具备中继功能的终端和/或远端终端根据该第一指示信息选择要接入的上一跳中继终端,填补了多跳中继场景下中继发现消息设计的空白,从而可以实现由sidelink中继组成的多跳中继系统。
如图4所示,本公开实施例还提供一种中继选择方法,该方法包括:
步骤401,中继终端向第一终端发送中继发现消息,所述中继发现消息中携带第一指示信息;
其中,所述第一终端为远端终端和/或具备中继能力的终端;所述第一指示信息用于辅助所述第一终端选择要接入的上一跳中继终端。
在本公开的至少一个可选实施例中,所述第一指示信息包括下述至少一项:
通过所述中继终端能够接入的目标对象的标识信息;
通过所述中继终端对应的每条路径能够接入的目标对象的标识信息;
所述中继终端接入到目标对象所需的最小跳数;
所述中继终端对应的每条路径上,所述中继终端接入到目标对象所需的跳数;
所述中继终端对应的每条路径上,所述中继终端和该中继终端的上一跳节点之间的信道质量;
所述中继终端对应的每条路径上,每一跳的两个节点之间的信道质量;
所述中继终端对应的每条路径上,所述中继终端的负荷信息;
所述中继终端对应的每条路径上,每一跳对应的中继终端的负荷信息;
所述中继终端当前使用的中继类型;例如,L2中继和/或L3中继;
所述中继终端当前的状态信息;
接入目标对象所需的系统信息,例如,接入目标网络设备所需的必要的系统信息,如UAC信息。
可选地,上述中继终端对应的路径的个数大于或等于1,即中继终端可以仅支持单路径,或者中继终端也可以支持多路径,在此不做具体限定。
作为一个可选实施例,所述目标对象包括:目标终端和/或目标网络设备。
相应的,所述目标终端的标识信息包括:目标终端的直接通信目标地址(比如L2目标地址);或者,新引入的目标标识;
和/或,所述目标网络设备的标识信息包括:PLMN ID,和/或,小区ID。
作为另一个可选实施例,所述中继终端当前的状态信息包括下述至少一项:
所述中继终端的电量信息;
所述中继终端的负荷信息;
所述中继终端的速度。
本公开实施例中,中继终端发送的中继发现消息中携带特定的第一指示信息,具备中继功能的终端和/或远端终端根据该第一指示信息选择要接入的上一跳中继终端,填补了多跳中继场景下中继发现消息设计的空白,从而可以实现由sidelink中继组成的多跳中继系统。
为了更清楚的描述本公开实施例提供的中继选择方法,下面结合两个示例对该方法进行说明。
示例一,远端UE根据中继UE发送的中继发现消息选择上一跳中继UE,如图5所示:
步骤51,中继UE和目标网络设备或者目标UE建立连接;
本示例中存在三个中继UE:中继UE1,中继UE2和中继UE3。中继UE2和中继UE3直接和目标网络设备或目标UE建立连接。中继UE1通过中继UE3和目标网络设备或者目标UE建立连接。
步骤52,中继UE1,中继UE2和中继UE3分别发送中继发现消息;
本示例中远端UE可以接收到中继UE1,中继UE2和中继UE3发送的中继发现消息。
每条中继发现消息中分别携带第一指示信息,所述第一指示信息包括但不限于如下信息之一或者组合:
通过所述中继终端能够接入的目标对象的标识信息;
通过所述中继终端对应的每条路径能够接入的目标对象的标识信息;
所述中继终端接入到目标对象所需的最小跳数;
所述中继终端对应的每条路径上,所述中继终端接入到目标对象所需的跳数;
所述中继终端对应的每条路径上,所述中继终端和该中继终端的上一跳 节点之间的信道质量;
所述中继终端对应的每条路径上,每一跳的两个节点之间的信道质量;
所述中继终端对应的每条路径上,所述中继终端的负荷信息;
所述中继终端对应的每条路径上,每一跳对应的中继终端的负荷信息;
所述中继终端当前使用的中继类型;例如,L2中继和/或L3中继;
所述中继终端当前的状态信息;例如中继终端的移动速度、电量等;
接入目标对象所需的系统信息,例如,接入目标网络设备所需的必要的系统信息,如UAC信息。
步骤53,远端UE执行上一跳中继UE选择;远端UE根据所述中继UE1,中继UE2和中继UE3发送的中继发现消息,选择要接入的上一跳中继UE,需要考虑的因素包括如下之一或者组合:
通过所述中继终端能够接入的目标对象的标识信息;
通过所述中继终端对应的每条路径能够接入的目标对象的标识信息;
所述中继终端接入到目标对象所需的最小跳数;
所述中继终端对应的每条路径上,所述中继终端接入到目标对象所需的跳数;
所述中继终端对应的每条路径上,所述中继终端和该中继终端的上一跳节点之间的信道质量;
所述中继终端对应的每条路径上,每一跳的两个节点之间的信道质量;
所述中继终端对应的每条路径上,所述中继终端的负荷信息;
所述中继终端对应的每条路径上,每一跳对应的中继终端的负荷信息;
所述中继终端当前使用的中继类型;例如,L2中继和/或L3中继;
所述中继终端当前的状态信息;例如中继终端的移动速度、电量等;
接入目标对象所需的系统信息,例如,接入目标网络设备所需的必要的系统信息,如UAC信息。
例如,远端UE可以根据中继发现消息中携带的“所述中继UE接入到目标网络设备(U2N中继)所需要的最小跳数”选择跳数最少的中继UE。比如本示例中,中继UE2和中继UE3接入到目标网络设备或目标UE需要1跳,但是中继UE1接入到目标网络设备需要2跳,所以远端UE可以优先选 择中继UE2或者中继UE3接入。具体如何是选择UE2还是UE3可以取决于远端UE的实现,也可以进一步结合第一指示信息中的其他信息,比如中继终端和目标网络设备的信道质量,如果UE2和目标网络设备之间的信道质量好于UE3和目标网络设备之间的信道质量,则远端UE可以选择中继UE2接入。
示例二,具备中继功能的UE根据中继UE发送的中继发现消息选择上一跳中继终端,如图6所示:
步骤61,中继UE和目标网络设备或者目标UE建立连接;
本示例中存在三个中继UE:中继UE1,中继UE2和中继UE3。中继UE2和中继UE3直接和目标网络设备或目标UE建立连接。中继UE1通过中继UE3和目标网络设备或者目标UE建立连接。
步骤62,中继UE1和中继UE2分别发送中继发现消息;
本示例中具备中继功能的UE可以接收到中继UE1和中继UE2发送的中继发现消息。
每条中继发现消息中分别携带第一指示信息,所述第一指示信息包括但不限于如下信息之一或者组合:
通过所述中继终端能够接入的目标对象的标识信息;
通过所述中继终端对应的每条路径能够接入的目标对象的标识信息;
所述中继终端接入到目标对象所需的最小跳数;
所述中继终端对应的每条路径上,所述中继终端接入到目标对象所需的跳数;
所述中继终端对应的每条路径上,所述中继终端和该中继终端的上一跳节点之间的信道质量;
所述中继终端对应的每条路径上,每一跳的两个节点之间的信道质量;
所述中继终端对应的每条路径上,所述中继终端的负荷信息;
所述中继终端对应的每条路径上,每一跳对应的中继终端的负荷信息;
所述中继终端当前使用的中继类型;例如,L2中继和/或L3中继;
所述中继终端当前的状态信息;例如中继终端的移动速度、电量等;
接入目标对象所需的系统信息,例如,接入目标网络设备所需的必要的 系统信息,如UAC信息。
可选地,该中继发现消息中还可以携带用于进行中继功能激活判断的直接通信接口信道质量门限。
步骤63,具备中继功能的UE执行上一跳中继UE选择;
具体中继功能的UE根据所述中继UE发送的中继发现消息,判断是否激活中继功能和/或是否和所述中继UE建立中继连接。其中,具有中继功能的UE判断是否和所述中继UE建立中继连接的条件可以是但不限于如下之一或者组合:
具备中继功能的UE支持所述中继UE当前中继发现消息中指示的中继UE当前使用的中继工作模式(比如L2中继,L3中继);
当前中继UE的中继发现消息中指示的中继UE的负荷信息或者中继UE的状态信息满足特定条件,比如负荷低于某个门限,或者速度低于某个门限,或者电量高于某个门限。
进一步的,如果多跳中继网络仅支持单路径,则具备中继功能的UE仅可以从满足条件的多个中继UE中仅选择一个中继UE接入,具体如何选择取决于该UE的实现。如果多跳中继网络可以支持多路径,则具备中继功能的UE可以选择和满足条件的多个中继UE建立连接。
例如,若中继UE1的中继发现消息中携带的“所述中继UE当前使用的中继类型”为L2中继,所述若中继UE2的中继发现消息中携带的“所述中继UE当前使用的中继类型”为L3中继,而所述具备中继功能的UE仅支持L2中继,则会选择中继UE1接入,并选择中继UE1作为其上一跳中继。
需要说明的是,具备中继功能的UE同时发现有多个满足条件的中继UE,如果多跳中继网络仅支持单路径,则具备中继功能的UE可以从中选择一个中继UE接入,具体如何选择取决于具备中继功能的UE的实现。如果多跳中继网络可以支持多路径,则具备中继功能的UE可以选择和多个中继UE建立连接。
如图7所示,本公开实施例还提供一种中继选择装置,包括:
接收单元701,用于接收至少一个中继终端发送的中继发现消息,所述中继发现消息中携带第一指示信息;
选择单元702,用于根据所述中继发现消息中携带的第一指示信息选择要接入的上一跳中继终端;
其中,所述第一终端为远端终端和/或具备中继能力的终端。
作为一个可选实施例,所述第一指示信息包括下述至少一项:
通过所述中继终端能够接入的目标对象的标识信息;
通过所述中继终端对应的每条路径能够接入的目标对象的标识信息;
所述中继终端接入到目标对象所需的最小跳数;
所述中继终端对应的每条路径上,所述中继终端接入到目标对象所需的跳数;
所述中继终端对应的每条路径上,所述中继终端和该中继终端的上一跳节点之间的信道质量;
所述中继终端对应的每条路径上,每一跳的两个节点之间的信道质量;
所述中继终端对应的每条路径上,所述中继终端的负荷信息;
所述中继终端对应的每条路径上,每一跳对应的中继终端的负荷信息;
所述中继终端当前使用的中继类型;
所述中继终端当前的状态信息;
接入目标对象所需的系统信息。
作为一个可选实施例,所述目标对象包括:目标终端和/或目标网络设备。
作为一个可选实施例,所述目标终端的标识信息包括:目标终端的直接通信目标地址;
和/或,
所述目标网络设备的标识信息包括:PLMN ID,和/或,小区ID。
作为一个可选实施例,所述中继终端当前的状态信息包括下述至少一项:
所述中继终端的电量信息;
所述中继终端的负荷信息;
所述中继终端的速度。
作为一个可选实施例,在第一终端为具备中继能力的终端的情况下,所述装置还包括:
第一判断单元,用于判断是否激活中继能力。
作为一个可选实施例,在第一终端为具备中继能力的终端的情况下,所述装置还包括:
第二判断单元,用于用于根据所述中继发现消息,判断是否能够与所述中继发现消息对应的中继终端建立中继连接。
作为一个可选实施例,所述第二判断单元包括:
第一判断子单元,用于根据所述中继发现消息,确定所述具备中继能力的终端能够和满足第一条件的中继终端建立中继连接;其中,所述第一条件包括下述至少一项:
具备中继能力的终端支持所中继发现消息指示的所述中继终端当前使用的中继类型;
所述中继发现消息指示的中继终端的负荷信息满足第二条件;
所述中继发现消息指示的中继终端的当前状态信息满足第三条件。
作为一个可选实施例,所述第二条件包括:所述中继终端的负荷低于第一门限。
作为一个可选实施例,所述第三条件包括下述至少一项:
所述中继终端的电量高于第二门限;
所述中继终端的速度低于第三门限;
所述中继终端的负荷低于第四门限。
作为一个可选实施例,所述选择单元包括:
第一选择子单元,用于在中继网络仅支持单路径的情况下,所述具备中继能力的终端从满足所述第一条件的中继终端中选择一个中继终端作为要接入的上一跳中继终端;
和/或,
第二选择子单元,用于在中继网络支持多路径的情况下,所述具备中继能力的终端从满足所述第一条件的中继终端中选择一个或多个中继终端作为要接入的上一跳中继终端。
本公开实施例中,中继终端发送的中继发现消息中携带特定的第一指示信息,具备中继功能的终端和/或远端终端根据该第一指示信息选择要接入的上一跳中继终端,填补了多跳中继场景下中继发现消息设计的空白,从而可 以实现由sidelink中继组成的多跳中继系统。
需要说明的是,本公开实施例提供的中继选择装置是能够执行上述中继选择方法的装置,则上述中继选择方法的所有实施例均适用于该装置,且均能达到相同或相似的有益效果。
如图8所示,本公开实施例还提供一种终端,所述终端为第一终端,包括存储器820,收发机810,处理器800:
存储器820,用于存储计算机程序;收发机810,用于在所述处理器800的控制下收发数据;处理器800,用于读取所述存储器820中的计算机程序并执行以下操作:
接收至少一个中继终端发送的中继发现消息,所述中继发现消息中携带第一指示信息;
根据所述中继发现消息中携带的第一指示信息选择要接入的上一跳中继终端;
其中,所述第一终端为远端终端和/或具备中继能力的终端。
作为一个可选实施例,所述第一指示信息包括下述至少一项:
通过所述中继终端能够接入的目标对象的标识信息;
通过所述中继终端对应的每条路径能够接入的目标对象的标识信息;
所述中继终端接入到目标对象所需的最小跳数;
所述中继终端对应的每条路径上,所述中继终端接入到目标对象所需的跳数;
所述中继终端对应的每条路径上,所述中继终端和该中继终端的上一跳节点之间的信道质量;
所述中继终端对应的每条路径上,每一跳的两个节点之间的信道质量;
所述中继终端对应的每条路径上,所述中继终端的负荷信息;
所述中继终端对应的每条路径上,每一跳对应的中继终端的负荷信息;
所述中继终端当前使用的中继类型;
所述中继终端当前的状态信息;
接入目标对象所需的系统信息。
作为一个可选实施例,所述目标对象包括:目标终端和/或目标网络设备。
作为一个可选实施例,所述目标终端的标识信息包括:目标终端的直接通信目标地址;
和/或,
所述目标网络设备的标识信息包括:PLMN ID,和/或,小区ID。
作为一个可选实施例,所述中继终端当前的状态信息包括下述至少一项:
所述中继终端的电量信息;
所述中继终端的负荷信息;
所述中继终端的速度。
作为一个可选实施例,所述处理器还用于读取所述存储器中的计算机程序并执行以下操作:
判断是否激活中继能力。
作为一个可选实施例,所述处理器还用于读取所述存储器中的计算机程序并执行以下操作:
根据所述中继发现消息,判断是否能够与所述中继发现消息对应的所述中继终端建立中继连接。
作为一个可选实施例,所述处理器还用于读取所述存储器中的计算机程序并执行以下操作:
根据所述中继发现消息,确定所述具备中继能力的终端能够和满足第一条件的中继终端建立中继连接;其中,所述第一条件包括下述至少一项:
具备中继能力的终端支持所中继发现消息指示的所述中继终端当前使用的中继类型;
所述中继发现消息指示的中继终端的负荷信息满足第二条件;
所述中继发现消息指示的中继终端的当前状态信息满足第三条件。
作为一个可选实施例,所述第二条件包括:所述中继终端的负荷低于第一门限。
作为一个可选实施例,所述第三条件包括下述至少一项:
所述中继终端的电量高于第二门限;
所述中继终端的速度低于第三门限;
所述中继终端的负荷低于第四门限。
作为一个可选实施例,所述处理器还用于读取所述存储器中的计算机程序并执行以下操作:
在中继网络仅支持单路径的情况下,从满足所述第一条件的中继终端中选择一个中继终端作为要接入的上一跳中继终端;
或者,
在中继网络支持多路径的情况下,从满足所述第一条件的中继终端中选择一个或多个中继终端作为要接入的上一跳中继终端。
其中,在图8中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器800代表的一个或多个处理器和存储器820代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机810可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元,这些传输介质包括,这些传输介质包括无线信道、有线信道、光缆等传输介质。针对不同的用户设备,用户接口830还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器800负责管理总线架构和通常的处理,存储器820可以存储处理器800在执行操作时所使用的数据。
可选地,处理器800可以是中央处理器(Central Processing Unit,CPU)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device,CPLD),处理器也可以采用多核架构。
处理器通过调用存储器存储的计算机程序,用于按照获得的可执行指令执行本申请实施例提供的任一所述方法。处理器与存储器也可以物理上分开布置。
本公开实施例中,中继终端发送的中继发现消息中携带特定的第一指示信息,具备中继功能的终端和/或远端终端根据该第一指示信息选择要接入的上一跳中继终端,填补了多跳中继场景下中继发现消息设计的空白,从而可 以实现由sidelink中继组成的多跳中继系统。
需要说明的是,本公开实施例提供的终端是能够执行上述中继选择方法的终端,则上述中继选择方法的所有实施例均适用于该终端,且均能达到相同或相似的有益效果。
如图9所示,本公开实施例还提供一种中继选择装置,该装置包括:
发送单元901,用于向第一终端发送中继发现消息,所述中继发现消息中携带第一指示信息;
其中,所述第一终端为远端终端和/或具备中继能力的终端;所述第一指示信息用于辅助所述第一终端选择要接入的上一跳中继终端。
作为一个可选实施例,所述第一指示信息包括下述至少一项:
通过所述中继终端能够接入的目标对象的标识信息;
通过所述中继终端对应的每条路径能够接入的目标对象的标识信息;
所述中继终端接入到目标对象所需的最小跳数;
所述中继终端对应的每条路径上,所述中继终端接入到目标对象所需的跳数;
所述中继终端对应的每条路径上,所述中继终端和该中继终端的上一跳节点之间的信道质量;
所述中继终端对应的每条路径上,每一跳的两个节点之间的信道质量;
所述中继终端对应的每条路径上,所述中继终端的负荷信息;
所述中继终端对应的每条路径上,每一跳对应的中继终端的负荷信息;
所述中继终端当前使用的中继类型;
所述中继终端当前的状态信息;
接入目标对象所需的系统信息。
作为一个可选实施例,所述目标对象包括:目标终端和/或目标网络设备。
作为一个可选实施例,所述目标终端的标识信息包括:目标终端的直接通信目标地址;
和/或,
所述目标网络设备的标识信息包括:PLMN ID,和/或,小区ID。
作为一个可选实施例,所述中继终端当前的状态信息包括下述至少一项:
所述中继终端的电量信息;
所述中继终端的负荷信息;
所述中继终端的速度。
本公开实施例中,中继终端发送的中继发现消息中携带特定的第一指示信息,具备中继功能的终端和/或远端终端根据该第一指示信息选择要接入的上一跳中继终端,填补了多跳中继场景下中继发现消息设计的空白,从而可以实现由sidelink中继组成的多跳中继系统。
需要说明的是,本公开实施例提供的中继选择装置是能够执行上述中继选择方法的装置,则上述中继选择方法的所有实施例均适用于该装置,且均能达到相同或相似的有益效果。
如图10所示,本公开实施例还提供一种终端,该终端为中继终端,包括存储器120,收发机110,处理器100:
存储器120,用于存储计算机程序;收发机110,用于在所述处理器100的控制下收发数据;处理器100,用于读取所述存储器120中的计算机程序并执行以下操作:
向第一终端发送中继发现消息,所述中继发现消息中携带第一指示信息;
其中,所述第一终端为远端终端和/或具备中继能力的终端;所述第一指示信息用于辅助所述第一终端选择要接入的上一跳中继终端。
作为一个可选实施例,所述第一指示信息包括下述至少一项:
通过所述中继终端能够接入的目标对象的标识信息;
通过所述中继终端对应的每条路径能够接入的目标对象的标识信息;
所述中继终端接入到目标对象所需的最小跳数;
所述中继终端对应的每条路径上,所述中继终端接入到目标对象所需的跳数;
所述中继终端对应的每条路径上,所述中继终端和该中继终端的上一跳节点之间的信道质量;
所述中继终端对应的每条路径上,每一跳的两个节点之间的信道质量;
所述中继终端对应的每条路径上,所述中继终端的负荷信息;
所述中继终端对应的每条路径上,每一跳对应的中继终端的负荷信息;
所述中继终端当前使用的中继类型;
所述中继终端当前的状态信息;
接入目标对象所需的系统信息。
作为一个可选实施例,所述目标对象包括:目标终端和/或目标网络设备。
作为一个可选实施例,所述目标终端的标识信息包括:目标终端的直接通信目标地址;
和/或,
所述目标网络设备的标识信息包括:PLMN ID,和/或,小区ID。
作为一个可选实施例,所述中继终端当前的状态信息包括下述至少一项:
所述中继终端的电量信息;
所述中继终端的负荷信息;
所述中继终端的速度。
其中,在图10中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器100代表的一个或多个处理器和存储器120代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机110可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元,这些传输介质包括,这些传输介质包括无线信道、有线信道、光缆等传输介质。针对不同的用户设备,用户接口130还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器100负责管理总线架构和通常的处理,存储器120可以存储处理器100在执行操作时所使用的数据。
可选地,处理器100可以是CPU、ASIC、FPGA或CPLD,处理器也可以采用多核架构。
处理器通过调用存储器存储的计算机程序,用于按照获得的可执行指令执行本申请实施例提供的任一所述方法。处理器与存储器也可以物理上分开布置。
本公开实施例中,中继终端发送的中继发现消息中携带特定的第一指示信息,具备中继功能的终端和/或远端终端根据该第一指示信息选择要接入的上一跳中继终端,填补了多跳中继场景下中继发现消息设计的空白,从而可以实现由sidelink中继组成的多跳中继系统。
需要说明的是,本公开实施例提供的终端是能够执行上述中继选择方法的终端,则上述中继选择方法的所有实施例均适用于该终端,且均能达到相同或相似的有益效果。
进一步需要说明的是,本申请实施例中对单元的划分是示意性的,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。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。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
所述集成的单元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,可以存储在一个处理器可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对相关技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)或处理器(processor)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。
本公开实施例还提供一种处理器可读存储介质,所述处理器可读存储介质存储有计算机程序,所述计算机程序用于使所述处理器执行如上所述的中继选择方法;所述处理器可读存储介质可以是处理器能够存取的任何可用介质或数据存储设备,包括但不限于磁性存储器(例如软盘、硬盘、磁带、磁光盘(Magneto-Optical Disk,MO)等)、光学存储器(例如光盘(Compact Disk,CD)、数字视频光盘(Digital Versatile Disc,DVD)、蓝光光碟(Blu-ray Disc,BD)、高清通用光盘(High-Definition Versatile Disc,HVD)等)、以及半导体存储器(例如ROM、可擦除可编程只读存储器(Erasable Programmable  Read-Only Memory,EPROM)、带电可擦可编程只读存储器(Electrically Erasable Programmable read only memory,EEPROM)、非易失性存储器(NAND FLASH)、固态硬盘(Solid State Disk或Solid State Drive,SSD))等。
本领域内的技术人员应明白,本申请的实施例可提供为方法、系统、或计算机程序产品。因此,本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机可执行指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机可执行指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些处理器可执行指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的处理器可读存储器中,使得存储在该处理器可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些处理器可执行指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
需要说明的是,应理解以上各个模块的划分仅仅是一种逻辑功能的划分,实际实现时可以全部或部分集成到一个物理实体上,也可以物理上分开。且这些模块可以全部以软件通过处理元件调用的形式实现;也可以全部以硬件的形式实现;还可以部分模块通过处理元件调用软件的形式实现,部分模块通过硬件的形式实现。例如,确定模块可以为单独设立的处理元件,也可以 集成在上述装置的某一个芯片中实现,此外,也可以以程序代码的形式存储于上述装置的存储器中,由上述装置的某一个处理元件调用并执行以上确定模块的功能。其它模块的实现与之类似。此外这些模块全部或部分可以集成在一起,也可以独立实现。这里所述的处理元件可以是一种集成电路,具有信号的处理能力。在实现过程中,上述方法的各步骤或以上各个模块可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。
例如,各个模块、单元、子单元或子模块可以是被配置成实施以上方法的一个或多个集成电路,例如:一个或多个特定集成电路(Application Specific Integrated Circuit,ASIC),或,一个或多个微处理器(digital signal processor,DSP),或,一个或者多个现场可编程门阵列(Field Programmable Gate Array,FPGA)等。再如,当以上某个模块通过处理元件调度程序代码的形式实现时,该处理元件可以是通用处理器,例如中央处理器(Central Processing Unit,CPU)或其它可以调用程序代码的处理器。再如,这些模块可以集成在一起,以片上系统(system-on-a-chip,SOC)的形式实现。
本公开的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便这里描述的本公开的实施例,例如除了在这里图示或描述的那些以外的顺序实施。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。此外,说明书以及权利要求中使用“和/或”表示所连接对象的至少其中之一,例如A和/或B和/或C,表示包含单独A,单独B,单独C,以及A和B都存在,B和C都存在,A和C都存在,以及A、B和C都存在的7种情况。类似地,本说明书以及权利要求中使用“A和B中的至少一个”应理解为“单独A,单独B,或A和B都存在”。
上面结合附图对本公开的实施例进行了描述,但是本公开并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本公开的启示下,在不脱离本公开宗旨和权利要求 所保护的范围情况下,还可做出很多形式,均属于本公开的保护之内。

Claims (35)

  1. 一种中继选择方法,该方法包括:
    第一终端接收至少一个中继终端发送的中继发现消息,所述中继发现消息中携带第一指示信息;
    所述第一终端根据所述中继发现消息中携带的第一指示信息选择要接入的上一跳中继终端;
    其中,所述第一终端为远端终端和/或具备中继能力的终端。
  2. 根据权利要求1所述的方法,其中,所述第一指示信息包括下述至少一项:
    通过所述中继终端能够接入的目标对象的标识信息;
    通过所述中继终端对应的每条路径能够接入的目标对象的标识信息;
    所述中继终端接入到目标对象所需的最小跳数;
    所述中继终端对应的每条路径上,所述中继终端接入到目标对象所需的跳数;
    所述中继终端对应的每条路径上,所述中继终端和该中继终端的上一跳节点之间的信道质量;
    所述中继终端对应的每条路径上,每一跳的两个节点之间的信道质量;
    所述中继终端对应的每条路径上,所述中继终端的负荷信息;
    所述中继终端对应的每条路径上,每一跳对应的中继终端的负荷信息;
    所述中继终端当前使用的中继类型;
    所述中继终端当前的状态信息;
    接入目标对象所需的系统信息。
  3. 根据权利要求2所述的方法,其中,所述目标对象包括:目标终端和/或目标网络设备。
  4. 根据权利要求3所述的方法,其中,所述目标终端的标识信息包括:目标终端的直接通信目标地址;
    和/或,
    所述目标网络设备的标识信息包括:公共陆地移动网PLMN ID,和/或, 小区ID。
  5. 根据权利要求2所述的方法,其中,所述中继终端当前的状态信息包括下述至少一项:
    所述中继终端的电量信息;
    所述中继终端的负荷信息;
    所述中继终端的速度。
  6. 根据权利要求1所述的方法,其中,在第一终端为具备中继能力的终端的情况下,所述第一终端根据所述中继发现消息中携带的第一指示信息选择要接入的上一跳中继终端之前,所述方法还包括:
    所述具备中继能力的终端判断是否激活中继能力。
  7. 根据权利要求2所述的方法,其中,在第一终端为具备中继能力的终端的情况下,所述第一终端根据所述中继发现消息中携带的第一指示信息选择要接入的上一跳中继终端之前,所述方法还包括:
    所述具备中继能力的终端根据所述中继发现消息,判断是否能够与所述中继发现消息对应的中继终端建立中继连接。
  8. 根据权利要求7所述的方法,其中,所述具备中继能力的终端根据所述中继发现消息,判断是否能够与所述中继发现消息对应的中继终端建立中继连接,包括:
    根据所述中继发现消息,确定所述具备中继能力的终端能够和满足第一条件的中继终端建立中继连接;其中,所述第一条件包括下述至少一项:
    具备中继能力的终端支持所中继发现消息指示的所述中继终端当前使用的中继类型;
    所述中继发现消息指示的中继终端的负荷信息满足第二条件;
    所述中继发现消息指示的中继终端的当前状态信息满足第三条件。
  9. 根据权利要求8所述的方法,其中,所述第二条件包括:所述中继终端的负荷低于第一门限。
  10. 根据权利要求8所述的方法,其中,所述第三条件包括下述至少一项:
    所述中继终端的电量高于第二门限;
    所述中继终端的速度低于第三门限;
    所述中继终端的负荷低于第四门限。
  11. 根据权利要求8所述的方法,其中,所述第一终端根据所述中继发现消息中携带的第一指示信息选择要接入的上一跳中继终端,包括:
    在中继网络仅支持单路径的情况下,所述具备中继能力的终端从满足所述第一条件的中继终端中选择一个中继终端作为要接入的上一跳中继终端;
    或者,
    在中继网络支持多路径的情况下,所述具备中继能力的终端从满足所述第一条件的中继终端中选择一个或多个中继终端作为要接入的上一跳中继终端。
  12. 一种中继选择方法,该方法包括:
    中继终端向第一终端发送中继发现消息,所述中继发现消息中携带第一指示信息;
    其中,所述第一终端为远端终端和/或具备中继能力的终端;所述第一指示信息用于辅助所述第一终端选择要接入的上一跳中继终端。
  13. 根据权利要求12所述的方法,其中,所述第一指示信息包括下述至少一项:
    通过所述中继终端能够接入的目标对象的标识信息;
    通过所述中继终端对应的每条路径能够接入的目标对象的标识信息;
    所述中继终端接入到目标对象所需的最小跳数;
    所述中继终端对应的每条路径上,所述中继终端接入到目标对象所需的跳数;
    所述中继终端对应的每条路径上,所述中继终端和该中继终端的上一跳节点之间的信道质量;
    所述中继终端对应的每条路径上,每一跳的两个节点之间的信道质量;
    所述中继终端对应的每条路径上,所述中继终端的负荷信息;
    所述中继终端对应的每条路径上,每一跳对应的中继终端的负荷信息;
    所述中继终端当前使用的中继类型;
    所述中继终端当前的状态信息;
    接入目标对象所需的系统信息。
  14. 根据权利要求13所述的方法,其中,所述目标对象包括:目标终端和/或目标网络设备。
  15. 根据权利要求14所述的方法,其中,所述目标终端的标识信息包括:目标终端的直接通信目标地址;
    和/或,
    所述目标网络设备的标识信息包括:公共陆地移动网PLMN ID,和/或,小区ID。
  16. 根据权利要求13所述的方法,其中,所述中继终端当前的状态信息包括下述至少一项:
    所述中继终端的电量信息;
    所述中继终端的负荷信息;
    所述中继终端的速度。
  17. 一种中继选择装置,应用于第一终端,包括:
    接收单元,用于接收至少一个中继终端发送的中继发现消息,所述中继发现消息中携带第一指示信息;
    选择单元,用于根据所述中继发现消息中携带的第一指示信息选择要接入的上一跳中继终端;
    其中,所述第一终端为远端终端和/或具备中继能力的终端。
  18. 一种终端,所述终端为第一终端,包括存储器,收发机,处理器,其中:
    存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并执行以下操作:
    接收至少一个中继终端发送的中继发现消息,所述中继发现消息中携带第一指示信息;
    根据所述中继发现消息中携带的第一指示信息选择要接入的上一跳中继终端;
    其中,所述第一终端为远端终端和/或具备中继能力的终端。
  19. 根据权利要求18所述的终端,其中,所述第一指示信息包括下述至 少一项:
    通过所述中继终端能够接入的目标对象的标识信息;
    通过所述中继终端对应的每条路径能够接入的目标对象的标识信息;
    所述中继终端接入到目标对象所需的最小跳数;
    所述中继终端对应的每条路径上,所述中继终端接入到目标对象所需的跳数;
    所述中继终端对应的每条路径上,所述中继终端和该中继终端的上一跳节点之间的信道质量;
    所述中继终端对应的每条路径上,每一跳的两个节点之间的信道质量;
    所述中继终端对应的每条路径上,所述中继终端的负荷信息;
    所述中继终端对应的每条路径上,每一跳对应的中继终端的负荷信息;
    所述中继终端当前使用的中继类型;
    所述中继终端当前的状态信息;
    接入目标对象所需的系统信息。
  20. 根据权利要求19所述的终端,其中,所述目标对象包括:目标终端和/或目标网络设备。
  21. 根据权利要求20所述的终端,其中,所述目标终端的标识信息包括:目标终端的直接通信目标地址;
    和/或,
    所述目标网络设备的标识信息包括:公共陆地移动网PLMN ID,和/或,小区ID。
  22. 根据权利要求19所述的终端,其中,所述中继终端当前的状态信息包括下述至少一项:
    所述中继终端的电量信息;
    所述中继终端的负荷信息;
    所述中继终端的速度。
  23. 根据权利要求18所述的终端,其中,所述处理器还用于读取所述存储器中的计算机程序并执行以下操作:
    判断是否激活中继能力。
  24. 根据权利要求19所述的终端,其中,所述处理器还用于读取所述存储器中的计算机程序并执行以下操作:
    根据所述中继发现消息,判断是否能够与所述中继发现消息对应的中继终端建立中继连接。
  25. 根据权利要求24所述的终端,其中,所述处理器还用于读取所述存储器中的计算机程序并执行以下操作:
    根据所述中继发现消息,确定所述具备中继能力的终端能够和满足第一条件的中继终端建立中继连接;其中,所述第一条件包括下述至少一项:
    具备中继能力的终端支持所中继发现消息指示的所述中继终端当前使用的中继类型;
    所述中继发现消息指示的中继终端的负荷信息满足第二条件;
    所述中继发现消息指示的中继终端的当前状态信息满足第三条件。
  26. 根据权利要求25所述的终端,其中,所述第二条件包括:所述中继终端的负荷低于第一门限。
  27. 根据权利要求25所述的终端,其中,所述第三条件包括下述至少一项:
    所述中继终端的电量高于第二门限;
    所述中继终端的速度低于第三门限;
    所述中继终端的负荷低于第四门限。
  28. 根据权利要求25所述的终端,其中,所述处理器还用于读取所述存储器中的计算机程序并执行以下操作:
    在中继网络仅支持单路径的情况下,从满足所述第一条件的中继终端中选择一个中继终端作为要接入的上一跳中继终端;
    或者,
    在中继网络支持多路径的情况下,从满足所述第一条件的中继终端中选择一个或多个中继终端作为要接入的上一跳中继终端。
  29. 一种中继选择装置,该装置包括:
    发送单元,用于向第一终端发送中继发现消息,所述中继发现消息中携带第一指示信息;
    其中,所述第一终端为远端终端和/或具备中继能力的终端;所述第一指示信息用于辅助所述第一终端选择要接入的上一跳中继终端。
  30. 一种终端,该终端为中继终端,包括存储器,收发机,处理器,其中:
    存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并执行以下操作:
    向第一终端发送中继发现消息,所述中继发现消息中携带第一指示信息;
    其中,所述第一终端为远端终端和/或具备中继能力的终端;所述第一指示信息用于辅助所述第一终端选择要接入的上一跳中继终端。
  31. 根据权利要求30所述的终端,其中,所述第一指示信息包括下述至少一项:
    通过所述中继终端能够接入的目标对象的标识信息;
    通过所述中继终端对应的每条路径能够接入的目标对象的标识信息;
    所述中继终端接入到目标对象所需的最小跳数;
    所述中继终端对应的每条路径上,所述中继终端接入到目标对象所需的跳数;
    所述中继终端对应的每条路径上,所述中继终端和该中继终端的上一跳节点之间的信道质量;
    所述中继终端对应的每条路径上,每一跳的两个节点之间的信道质量;
    所述中继终端对应的每条路径上,所述中继终端的负荷信息;
    所述中继终端对应的每条路径上,每一跳对应的中继终端的负荷信息;
    所述中继终端当前使用的中继类型;
    所述中继终端当前的状态信息;
    接入目标对象所需的系统信息。
  32. 根据权利要求31所述的终端,其中,所述目标对象包括:目标终端和/或目标网络设备。
  33. 根据权利要求32所述的终端,其中,所述目标终端的标识信息包括:目标终端的直接通信目标地址;
    和/或,
    所述目标网络设备的标识信息包括:公共陆地移动网PLMN ID,和/或,小区ID。
  34. 根据权利要求31所述的终端,其中,所述中继终端当前的状态信息包括下述至少一项:
    所述中继终端的电量信息;
    所述中继终端的负荷信息;
    所述中继终端的速度。
  35. 一种处理器可读存储介质,所述处理器可读存储介质存储有计算机程序,其中,所述计算机程序用于使所述处理器执行如权利要求1至11任一项所述的方法,或者,所述计算机程序用于使所述处理器执行如权利要求12至16任一项所述的方法。
PCT/CN2022/100736 2021-07-16 2022-06-23 中继选择方法、装置及终端 WO2023284512A1 (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107535012A (zh) * 2015-05-14 2018-01-02 富士通株式会社 中继选择或重选方法、装置和系统
CN107925844A (zh) * 2015-08-14 2018-04-17 富士通株式会社 中继选择方法、装置和系统
US20200008127A1 (en) * 2016-12-08 2020-01-02 Nec Corporation Apparatus and method for relay selection
CN113038566A (zh) * 2019-12-25 2021-06-25 维沃移动通信有限公司 路径选择方法、终端和网络侧设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107535012A (zh) * 2015-05-14 2018-01-02 富士通株式会社 中继选择或重选方法、装置和系统
CN107925844A (zh) * 2015-08-14 2018-04-17 富士通株式会社 中继选择方法、装置和系统
US20200008127A1 (en) * 2016-12-08 2020-01-02 Nec Corporation Apparatus and method for relay selection
CN113038566A (zh) * 2019-12-25 2021-06-25 维沃移动通信有限公司 路径选择方法、终端和网络侧设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NOKIA, NOKIA SHANGHAI BELL: "Discussion on relay selection and reselection", 3GPP DRAFT; R2-2103667, vol. RAN WG2, 1 April 2021 (2021-04-01), pages 1 - 3, XP051992210 *

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