WO2023143421A1 - Procédé et appareil de traitement de commutation de relais, terminal distant, terminal relais et dispositif du côté réseau - Google Patents

Procédé et appareil de traitement de commutation de relais, terminal distant, terminal relais et dispositif du côté réseau Download PDF

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Publication number
WO2023143421A1
WO2023143421A1 PCT/CN2023/073282 CN2023073282W WO2023143421A1 WO 2023143421 A1 WO2023143421 A1 WO 2023143421A1 CN 2023073282 W CN2023073282 W CN 2023073282W WO 2023143421 A1 WO2023143421 A1 WO 2023143421A1
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Prior art keywords
relay terminal
information
terminal
candidate
relay
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PCT/CN2023/073282
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English (en)
Chinese (zh)
Inventor
王文
张艳霞
郑倩
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维沃移动通信有限公司
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Publication of WO2023143421A1 publication Critical patent/WO2023143421A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters

Definitions

  • the present application belongs to the technical field of communication, and specifically relates to a relay handover processing method, device, remote terminal, relay terminal, and network side equipment.
  • the current technology stipulates the relay handover scenario of the same base station.
  • the remote terminal performs direct switching to the non-direct path, the remote terminal needs to provide at least one of the following information to the base station: Alternate relay User Equipment (UE ) identification; the serving cell of the candidate relay UE; the secondary link measurement quality information of the candidate relay UE.
  • UE Alternate relay User Equipment
  • the base station can judge the connection status of the candidate relay UE, and then determine which relay UE to select to determine the handover path.
  • the scenario of path switching may occur, including the situation that the remote UE switches from the direct path to the non-direct path, and the direct path and the non-direct path are different base stations (cross-base station path switching).
  • the source base station and the target base station are not the same.
  • the connection status of the candidate relay UE cannot be judged, so there is no judgment on the target path/target relay selection According to the basis, the handover delay increases and the service experience decreases.
  • Embodiments of the present application provide a relay handover processing method, device, remote terminal, relay terminal, and network-side equipment, which can solve the problems of long delay in inter-base station path switching and poor service experience in relay communication.
  • a relay switching processing method including:
  • the remote terminal acquires first information of the relay terminal, where the first information is used to indicate the connection status of the relay terminal; the relay terminal includes one or more;
  • the remote terminal performs a first operation according to the first information; the first operation includes at least one of the following:
  • Selecting a candidate relay terminal and sending second information to the network side device, where the second information includes the identifier of the first candidate relay terminal selected by the remote terminal;
  • the third information includes an identifier of a second candidate relay terminal;
  • the second candidate relay terminal includes: part or all of the relay terminals sending the first information Following the terminal.
  • a relay switching processing method including:
  • the network side device receives the second information and/or the third information sent by the remote terminal;
  • the second information includes the identifier of the first candidate relay terminal selected by the remote terminal;
  • the third information includes the second The identification of the alternate relay terminal;
  • the network-side device selects a target path for relay switching according to the second information and/or third information, where the target path includes a target relay terminal and/or a target network-side device.
  • a relay handover processing method including:
  • the relay terminal sends the first information of the relay terminal to the remote terminal, where the first information includes a connection status indicating the relay terminal.
  • a relay switching processing device including:
  • a first acquiring module configured to acquire first information of a relay terminal, where the first information is used to indicate the connection status of the relay terminal; the relay terminal includes one or more;
  • a first executing module configured to execute a first operation according to the first information; the first operation includes at least one of the following:
  • Selecting a candidate relay terminal and sending second information to the network side device, where the second information includes the identifier of the first candidate relay terminal selected by the remote terminal;
  • the third information includes an identifier of a second candidate relay terminal;
  • the second candidate relay terminal includes: part or all of the relay terminals sending the first information Following the terminal.
  • a relay switching processing device including:
  • the first receiving module is configured to receive the second information and/or the third information sent by the remote terminal; the second information includes the identifier of the first candidate relay terminal selected by the remote terminal; the third The information includes an identifier of the second candidate relay terminal;
  • the selection module is configured to select a target path for relay handover according to the second information and/or third information, where the target path includes a target relay terminal and/or a target network side device.
  • a relay switching processing device including:
  • the second sending module is configured to send the first information of the relay terminal to the remote terminal, where the first information includes a connection status indicating the relay terminal.
  • a remote terminal in a seventh aspect, includes a processor and a memory, the memory stores programs or instructions that can run on the processor, and the programs or instructions are executed by the processor When realizing the steps of the method as described in the first aspect.
  • a remote terminal including a processor and a communication interface, wherein the communication interface is used to acquire first information of the relay terminal, and the first information is used to indicate the relay terminal's A connection state; the processor is configured to perform a first operation according to the first information; the first operation includes at least one of the following:
  • Select a candidate relay terminal and send second information to the network side device, the second information includes the remote terminal the identifier of the selected first candidate relay terminal;
  • the third information includes an identifier of a second candidate relay terminal;
  • the second candidate relay terminal includes: part or all of the relay terminals sending the first information Following the terminal.
  • a network-side device in a ninth aspect, includes a processor and a memory, the memory stores programs or instructions that can run on the processor, and the programs or instructions are executed by the processor When realizing the steps of the method as described in the second aspect.
  • a network side device including a processor and a communication interface, wherein the communication interface is used to receive second information and/or third information sent by a remote terminal; the second information includes the The identity of the first candidate relay terminal selected by the remote terminal; the third information includes the identity of the second candidate relay terminal; the processor is configured to, according to the second information and/or third information, A target path of relay handover is selected, where the target path includes a target relay terminal and/or a target network-side device.
  • a relay terminal in an eleventh aspect, includes a processor and a memory, the memory stores programs or instructions that can run on the processor, and the programs or instructions are executed by the processor When executed, the steps of the method described in the third aspect are realized.
  • a relay terminal including a processor and a communication interface, wherein the communication interface is used to send the first information of the relay terminal to a remote terminal, and the first information includes information for Indicates the connection status of the relay terminal.
  • a thirteenth aspect provides a communication system, including: a remote terminal, a relay terminal, and a network-side device, the remote terminal can be used to execute the steps of the relay handover processing method described in the first aspect, so The network side device may be used to execute the steps of the relay switching processing method described in the second aspect, and the relay terminal may be configured to execute the steps of the relay switching processing method described in the third aspect.
  • a fourteenth aspect there is provided a readable storage medium, where programs or instructions are stored on the readable storage medium, and when the programs or instructions are executed by a processor, the steps of the method as described in the first aspect are implemented, or The steps of the method described in the second aspect, or implementing the steps of the method described in the third aspect.
  • a chip in a fifteenth aspect, there is provided a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or an instruction to implement the method described in the first aspect method, or implement the method as described in the second aspect, or implement the method as described in the third aspect.
  • a computer program product is provided, the computer program product is stored in a storage medium, and the computer program product is executed by at least one processor to implement the steps of the method described in the first aspect, or Implement the steps of the method described in the second aspect, or implement the steps of the method described in the third aspect.
  • a communication device configured to execute the method described in the first aspect, or execute the method described in the second aspect, or execute the method described in the third aspect.
  • the remote terminal before the relay switching, obtains the connection status of the relay terminal and notifies the network side device, and the network side device performs relay switching according to the connection status of the relay terminal; or the remote terminal After obtaining the connection status of the relay terminal, the selection of the candidate relay terminal is performed according to the connection status, and reported by the network side device; thus Effectively improve switching efficiency and user experience in the process of performing cross-base station direct path switching to indirect path on the remote path.
  • FIG. 1 is a block diagram of a wireless communication system to which an embodiment of the present application is applicable;
  • Fig. 2 is one of the flow charts of the steps of the relay switching processing method provided by the embodiment of the present application;
  • FIG. 3 is the second flowchart of the steps of the relay switching processing method provided by the embodiment of the present application.
  • FIG. 4 is the third flowchart of the steps of the relay switching processing method provided by the embodiment of the present application.
  • Fig. 5 is an interactive schematic diagram of Example 1 provided by the embodiment of the present application.
  • Fig. 6 is an interactive schematic diagram of Example 2 provided by the embodiment of the present application.
  • FIG. 7 is one of the schematic structural diagrams of a relay switching processing device provided in an embodiment of the present application.
  • Fig. 8 is the second structural schematic diagram of the relay switching processing device provided by the embodiment of the present application.
  • FIG. 9 is the third structural schematic diagram of the relay switching processing device provided by the embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a terminal provided in an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a network-side device provided by an embodiment of the present application.
  • first, second and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and “second” distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects.
  • “and/or” in the description and claims means at least one of the connected objects, and the character “/” generally means that the related objects are an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies.
  • the following description describes the New Radio (New Radio, NR) system for the purpose of example, And NR terms are used in most of the following descriptions, but these technologies can also be applied to applications other than NR system applications, such as 6th Generation ( 6th Generation, 6G) communication systems.
  • 6th Generation 6th Generation
  • Fig. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application is applicable.
  • the wireless communication system includes a remote terminal 11 , a relay terminal 12 and a network side device 13 .
  • the remote terminal 11 and the relay terminal 12 can be a mobile phone, a tablet computer (Tablet Personal Computer, TPC), a laptop computer (Laptop Computer, LC) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA ), Pocket PC, Netbook, Ultra-Mobile Personal Computer (Ultra-Mobile Personal Computer, UMPC), Mobile Internet Device (Mobile Internet Device, MID), Augmented Reality (Augmented Reality, AR) / Virtual Reality (Virtual Reality, VR) equipment , robot, wearable device (Wearable Device, WD), vehicle equipment (Vehicle User Equipment, VUE), pedestrian terminal (Pedestrian User Equipment, PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machine or furniture, etc.), game consoles, personal computers
  • the network side device 13 may include an access network device or a core network device, wherein the access network device may also be called a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function, or a wireless network. access network unit.
  • RAN Radio Access Network
  • RAN Radio Access Network
  • the access network device may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) access point or a wireless fidelity (Wireless Fidelity, WiFi) node, etc.
  • the base station may be called a node B, an evolved node B (Evolved Node B, eNB), Access Point, Base Transceiver Station (Base Transceiver Station, BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (Extended Service Set, ESS), Home B Node, Home Evolved Node B, Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms, it should be noted that , in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.
  • this embodiment of the present application provides a relay handover processing method, including:
  • Step 201 the remote terminal obtains first information of the relay terminal, the first information is used to indicate the connection status of the relay terminal, the relay terminal includes one or more, and the obtaining includes receiving;
  • Step 202 the remote terminal performs a first operation according to the first information; the first operation includes at least one of the following:
  • Selecting a candidate relay terminal and sending second information to the network side device, where the second information includes the identifier of the first candidate relay terminal selected by the remote terminal;
  • the third information includes an identifier of a second candidate relay terminal;
  • the second The candidate relay terminals include: some or all of the relay terminals sending the first information.
  • the first information may indicate the connection status of the relay terminal through an explicit indication, or may indicate the connection status of the relay terminal through an implicit indication; specifically, the first information
  • the information includes at least one of the following: the cell-radionetwork temporary identifier (Cell-RadioNetwork TemporaryIdentifier, C-RNTI) of the relay terminal, the inactive-state radio network temporary identifier (Inactive-RadioNetwork TemporaryIdentifier, I) of the relay terminal -RNTI), the 5G Temporary Mobile Subscription Identifier (5G-S-Temporary Mobile Subscription Identifier, 5G-STMSI) of the relay terminal, and the connection status information of the relay terminal.
  • C-RNTI Cell-RadioNetwork TemporaryIdentifier
  • I Inactive-RadioNetwork TemporaryIdentifier
  • 5G-S-Temporary Mobile Subscription Identifier 5G-STMSI
  • connection status information of the relay terminal is used to explicitly indicate the connection status of the relay terminal, and the C-RNTI of the relay terminal, the I-RNTI of the relay terminal, and the 5G-STMSI of the relay terminal are used for implicit indication ( Or referred to as indirect indication) to relay the connection state of the terminal.
  • connection state of the relay terminal includes one of the following:
  • Connection state such as connection management (Connection Management, CM) connection state, radio resource control (Radio Resource Control, RRC) connection state;
  • CM Connection Management
  • RRC Radio Resource Control
  • Inactive state such as CM connection and RRC inactive (CM-Connected with RRC inactive);
  • Idle state (Idle).
  • the identifier of the first relay terminal candidate and/or the identifier of the second relay terminal candidate includes at least one of the following:
  • 5G Globally Unique Temporary Identifier 5G-GUTI
  • I-RNTI Inactive wireless network temporary identifier
  • the identifier of the first candidate relay terminal can indirectly or implicitly indicate the connection status of the first candidate relay terminal; the identifier of the second candidate relay terminal can indirectly or implicitly Indicates the identity of the second candidate relay terminal.
  • the third information further includes:
  • the second candidate relays the connection state information of the terminal.
  • the connection state information is used to explicitly indicate the connection state of the second candidate relay terminal.
  • the first information further includes: willingness information of the relay terminal to enter the connected state.
  • willingness information of the relay terminal to enter the connected state For example, a specific bit in the first information indicates whether the relay terminal is willing to enter the connected state; if the relay terminal is currently in the idle state or inactive state, but is willing to enter the connected state, the corresponding bit in the first information The bit is 1; or when the relay terminal is currently in an idle state or an inactive state but does not intend to be included in the connected state, the corresponding bit in the first information is 0.
  • the second information further includes: identification information of the serving cell of the first candidate relay terminal; for example, the identification information of the serving cell is an NR Cell Global Identifier (NR Cell Global Identifier, NCGI );
  • the third information further includes: identification information of the serving cell of the second candidate relay terminal, for example, the identification information of the serving cell is an NR cell global identifier (NCGI).
  • NGI NR cell global identifier
  • the remote terminal selects a candidate relay terminal according to the first information, including:
  • the remote terminal selects a candidate relay terminal according to the first information and a first principle; wherein the first principle includes:
  • the relay terminal in the idle state is used as the first candidate relay terminal with the fourth priority.
  • the first priority is higher than the second priority
  • the second priority is higher than the third priority
  • the third priority is higher than the fourth priority
  • the corresponding first principle can also be understood as:
  • the relay terminal in the idle state is used as the first candidate relay terminal.
  • the method before step 201, the method further includes:
  • the remote terminal sends fourth information to the relay terminal, where the fourth information includes at least one of the following:
  • step 201 includes:
  • the remote terminal acquires the first information sent by the relay terminal based on the fourth information.
  • the way for the remote terminal to obtain the first information in the embodiment of the present application includes:
  • the relay terminal directly sends the first information to the remote terminal;
  • the relay terminal resends the first information to the remote terminal based on the request of the remote terminal.
  • the remote terminal before the relay switching, the remote terminal obtains the connection status of the relay terminal and notifies the network-side device, and the network-side device performs relay switching according to the connection status of the relay terminal; or After the remote terminal obtains the connection status of the relay terminal, it selects the candidate relay terminal according to the connection status, and reports to the network side device; thus effectively improving the remote path in the process of switching direct paths across base stations to non-direct paths Toggle efficiency and user experience.
  • the embodiment of the present application provides a relay handover processing method, including:
  • Step 301 the network side device receives the second information and/or the third information sent by the remote terminal;
  • the second information includes the identity of the first candidate relay terminal selected by the remote terminal;
  • the third information including the second alternate relay terminal's logo;
  • Step 302 the network-side device selects a target path for relay switching according to the second information and/or third information, and the target path includes a target relay terminal and/or a target network-side device.
  • the identifier of the first relay terminal candidate and/or the identifier of the second relay terminal candidate includes at least one of the following:
  • 5G Global Unique Temporary Identifier 5G-GUTI 5G Global Unique Temporary Identifier 5G-GUTI
  • I-RNTI Inactive wireless network temporary identifier
  • the identifier of the first candidate relay terminal can indirectly or implicitly indicate the connection status of the first candidate relay terminal; the identifier of the second candidate relay terminal can indirectly or implicitly Indicates the identity of the second candidate relay terminal.
  • the third information further includes:
  • the second candidate relays the connection state information of the terminal.
  • the connection state information is used to explicitly indicate the connection state of the second candidate relay terminal.
  • the second information further includes: identification information of the serving cell of the first candidate relay terminal; for example, the identification information of the serving cell is NR cell global identifier (NCGI);
  • NGI NR cell global identifier
  • the third information further includes: identification information of the serving cell of the second candidate relay terminal, for example, the identification information of the serving cell is an NR cell global identifier (NCGI).
  • NGI NR cell global identifier
  • the network-side device mentioned in the embodiment of the present application is the network-side device to which the remote terminal is currently connected (including directly connected or connected through a relay terminal).
  • the network side device selects a target path for relay switching according to the second information, including:
  • the network side device selects a target relay terminal and/or a target network for the remote terminal from the first candidate relay terminal according to the identifier of the first candidate relay terminal selected by the remote terminal side device.
  • the network side device selects a target path for relay handover according to the third information, including:
  • the network side device determines the connection state of the second candidate relay terminal according to the third information
  • the network-side device selects a target relay terminal and/or a target network-side device for the remote terminal according to the connection status of the second candidate relay terminal and a second principle; wherein the second principle includes :
  • the second relay terminal in the idle state is selected with the seventh priority as the target relay terminal and/or the target network-side device.
  • the fifth priority is higher than the sixth priority
  • the sixth priority is higher than the seventh priority
  • the second principle can also be understood as:
  • the second relay terminal in the idle state is selected as the target relay terminal and/or the target network-side device.
  • the network side device in step 302 selects the target path of the relay handover according to the second information and the third information, including:
  • the network side device determines the connection state of the second candidate relay terminal according to the third information
  • the network side device according to the identity of the first candidate relay terminal selected by the remote terminal, the identity of the second candidate relay terminal, the connection status of the second candidate relay terminal, and the third principle, Selecting a target relay terminal and/or a target network-side device for the remote terminal; wherein the third principle includes:
  • the second relay terminal in the idle state is selected with the eleventh priority as the target relay terminal and/or the target network-side device.
  • the eighth priority is higher than the ninth priority
  • the ninth priority is higher than the tenth priority
  • the tenth priority is higher than the eleventh priority.
  • the third principle can also be understood as:
  • the second relay terminal in the idle state is selected as the target relay terminal and/or the target network-side device.
  • the remote terminal before the relay switching, the remote terminal obtains the connection status of the relay terminal and notifies the network-side device, and the network-side device performs relay switching according to the connection status of the relay terminal; or After the remote terminal obtains the connection status of the relay terminal, it selects the candidate relay terminal according to the connection status, and reports to the network side device; thus effectively improving the remote path in the process of switching direct paths across base stations to non-direct paths Toggle efficiency and user experience.
  • the embodiment of the present application also provides a relay handover processing method, including:
  • the relay terminal sends first information of the relay terminal to a remote terminal, where the first information includes information indicating a connection status of the relay terminal.
  • the first information may indicate the connection status of the relay terminal in an explicit manner. state, or indicate the connection state of the relay terminal in an implicit manner; specifically, the first information includes at least one of the following items: the cell radio network temporary identifier C-RNTI of the relay terminal, the middle The inactive wireless network temporary identifier I-RNTI of the relay terminal, the 5G temporary mobile subscription identifier 5G-STMSI of the relay terminal, and the connection status information of the relay terminal.
  • connection status information of the relay terminal is used to explicitly indicate the connection status of the relay terminal, and the C-RNTI of the relay terminal, the I-RNTI of the relay terminal, and the 5G-STMSI of the relay terminal are used for implicit indication ( Or referred to as indirect indication) to relay the connection state of the terminal.
  • connection state of the relay terminal includes one of the following:
  • Connection state such as connection management CM connection state, radio resource control RRC connection state;
  • Inactive state such as CM-Connected with RRC inactive (CM connection and RRC inactive);
  • Idle state (Idle).
  • the first information further includes: willingness information of the relay terminal to enter the connected state.
  • willingness information of the relay terminal to enter the connected state For example, a specific bit in the first information indicates whether the relay terminal is willing to enter the connected state; if the relay terminal is currently in the idle state or inactive state, but is willing to enter the connected state, the corresponding bit in the first information The bit is 1; or when the relay terminal is currently in an idle state or an inactive state but does not intend to be included in the connected state, the corresponding bit in the first information is 0.
  • the method before step 401, the method further includes:
  • the relay terminal receives fourth information sent by the remote terminal, where the fourth information includes at least one of the following:
  • step 401 includes:
  • the relay terminal sends the first information to the remote terminal according to the fourth information.
  • the way for the remote terminal to obtain the first information in the embodiment of the present application includes:
  • the relay terminal directly sends the first information to the remote terminal;
  • the relay terminal resends the first information to the remote terminal based on the request of the remote terminal.
  • the first information carries the connection state information of the relay terminal and/or the willingness information of the relay terminal to enter the connection state.
  • the method further includes:
  • the relay terminal When the relay terminal is in an idle state or an inactive state, the relay terminal performs a process of entering a connected state (including a service request process) according to the third request information;
  • the relay terminal sending the first information to the remote terminal according to the fourth information includes:
  • the relay terminal After the relay terminal enters the connection state, it sends the first information to the remote terminal; the first information carries connection state information of the relay terminal and/or willingness information of the relay terminal to enter the connection state.
  • the remote terminal before the relay switching, the remote terminal obtains the connection status of the relay terminal and notifies the network-side device, and the network-side device performs relay switching according to the connection status of the relay terminal; or After the remote terminal obtains the connection status of the relay terminal, it selects the candidate relay terminal according to the connection status, and reports to the network side device; thus effectively improving the remote path in the process of switching direct paths across base stations to non-direct paths Toggle efficiency and user experience.
  • Example 1 the remote terminal obtains the first information of the relay terminal, and the remote terminal or the source base station selects a candidate relay terminal based on the first information, as shown in FIG. 5:
  • Step 51 the remote terminal receives a relay discovery message or a relay discovery additional message sent by the relay terminal, the relay discovery message carries first information, and the first information includes at least one of the following: the relay The cell wireless network temporary identifier C-RNTI of the terminal, the inactive wireless network temporary identifier I-RNTI of the relay terminal, the 5G temporary mobile subscription identifier 5G-STMSI of the relay terminal, the connection of the relay terminal State information; the relay discovers additional information, including the willingness information of the relay terminal to enter the connected state, that is, the relay terminal is currently in the idle state, but is willing to prepare to enter the connected state;
  • Step 52 the remote terminal sends the second information and/or the third information to the source base station, the second information includes: the identifier of the first candidate relay terminal, and the first candidate relay terminal is the remote terminal Select based on the first information.
  • the third information includes: the identifier of the second candidate relay terminal, and the optional third information further includes: connection status information of the corresponding relay terminal, and the second candidate relay terminal includes sending the first The relay terminal corresponding to the information.
  • Step 53 the source base station receives the second information and/or the third information, and selects a target handover path based on the second information and/or the third information, including the target relay terminal and/or the target base station, the selection;
  • the third information includes the identity of the second candidate relay terminal + the connection status information of the corresponding relay UE:
  • Example 2 the remote terminal obtains the first information of the relay terminal, and the remote terminal or the source base station selects a candidate relay terminal based on the first information, as shown in FIG. 6:
  • Step 61 the remote terminal sends a relay discovery message or a relay additional information acquisition message, where the message optionally carries fourth information, and the fourth information optionally includes at least one of the following:
  • the third request information for requesting the relay terminal to enter the connected state is the third request information for requesting the relay terminal to enter the connected state.
  • Step 62 the relay terminal receives the relay discovery message sent by the remote terminal, and sends first information
  • the first information includes at least one of the following: the cell radio network temporary identifier C-RNTI of the relay terminal, the The inactive wireless network temporary identifier I-RNTI of the relay terminal, the 5G temporary mobile subscription identifier 5G-STMSI of the relay terminal, The connection state information of the relay terminal; the relay discovers additional information, including the willingness information of the relay terminal to enter the connected state, that is, the relay terminal is currently in the idle state, but is willing to prepare to enter the connected state;
  • the fourth information carries the first request information and/or the second request information, and the relay terminal directly sends the first information
  • the fourth information also carries the third request information, and the relay terminal executes the process of entering the connection state, including the service request process, and sends the first information after entering the connection state;
  • Step 63 the remote terminal sends the second information and/or the third information to the source base station, the second information includes: the identifier of the first candidate relay terminal, and the first candidate relay terminal is the remote terminal Select based on the first information.
  • the third information includes: the identifier of the second candidate relay terminal, and the optional third information further includes: connection status information of the corresponding relay terminal, and the second candidate relay terminal includes sending the first The relay terminal corresponding to the information.
  • Step 64 the source base station receives the second information and/or the third information, and selects a target handover path based on the second information and/or the third information, including the target relay terminal and/or the target base station, the selection;
  • the third information includes the identity of the second candidate relay terminal + the connection status information of the corresponding relay UE:
  • the relay terminal sends its own connection state information (discovery stage) to the remote terminal, and the remote terminal determines the candidate relay to be sent to the network side device (source base station) based on the connection state of the relay terminal Information (for example, only the identification of the first candidate relay terminal in the connected state, or the identification of the second candidate relay terminal + connection status information), the network side device based on the candidate relay terminal information provided by the remote terminal , executing the selection of the target switching path, including the selection of the target relay terminal and the selection of the target network-side device (the target path corresponding to the relay terminal in the connected state is preferentially selected); the switching efficiency and user experience can be effectively improved.
  • the target switching path including the selection of the target relay terminal and the selection of the target network-side device (the target path corresponding to the relay terminal in the connected state is preferentially selected); the switching efficiency and user experience can be effectively improved.
  • the relay switching processing method provided in the embodiment of the present application may be executed by a relay switching processing device.
  • the relay switching processing device provided in the embodiment of the present application is described by taking the relay switching processing device executing the relay switching processing method as an example.
  • the embodiment of the present application also provides a relay switching processing device 700, including:
  • the first acquiring module 701 is configured to acquire the first information of the relay terminal, the first information is used to indicate the connection state of the relay terminal; the relay terminal includes one or more;
  • the first execution module 702 is configured to execute a first operation according to the first information; the first operation includes at least one of the following:
  • Selecting a candidate relay terminal and sending second information to the network side device, where the second information includes the identifier of the first candidate relay terminal selected by the remote terminal;
  • the third information includes an identifier of a second candidate relay terminal;
  • the second candidate relay terminal includes: part or all of the relay terminals sending the first information Following the terminal.
  • the third information also includes:
  • the second candidate relays the connection state information of the terminal.
  • the identifier of the first relay terminal candidate and/or the identifier of the second relay terminal candidate includes at least one of the following:
  • 5G Global Unique Temporary Identifier 5G-GUTI 5G Global Unique Temporary Identifier 5G-GUTI
  • I-RNTI Inactive wireless network temporary identifier
  • the first information includes at least one of the following: the cell radio network temporary identifier C-RNTI of the relay terminal, the inactive radio network temporary identifier I-RNTI of the relay terminal, The 5G temporary mobile subscription identifier 5G-STMSI of the relay terminal, and the connection state information of the relay terminal.
  • the first information further includes: willingness information of the relay terminal to enter the connected state.
  • the second information further includes: identification information of a serving cell of the first candidate relay terminal;
  • the third information further includes: identification information of a serving cell of the second candidate relay terminal.
  • the first execution module includes:
  • the first selection submodule is configured to select a candidate relay terminal according to the first information and a first principle; wherein the first principle includes:
  • the relay terminal in the idle state is used as the first candidate relay terminal with the fourth priority.
  • the device also includes:
  • the first sending module is configured to send fourth information to the relay terminal, where the fourth information includes at least one of the following:
  • the first acquisition module includes:
  • the first obtaining submodule is configured to obtain the first information sent by the relay terminal based on the fourth information.
  • the remote terminal before the relay switching, obtains the connection status of the relay terminal and notifies the network side device, and the network side device performs relay switching according to the connection status of the relay terminal; or the remote terminal After obtaining the connection status of the relay terminal, the candidate relay terminal is selected according to the connection status, and reported to the network side device; thus, the switching efficiency and efficiency of the non-direct path are effectively improved in the process of performing cross-base station direct path switching on the remote path. user experience.
  • the relay switching processing device provided in the embodiment of the present application is a device capable of executing the above-mentioned relay switching processing method, and all embodiments of the above-mentioned relay switching processing method are applicable to this device, and can achieve the same or similar beneficial effects.
  • the embodiment of the present application also provides a relay switching processing device 800, including:
  • the first receiving module 801 is configured to receive the second information and/or the third information sent by the remote terminal; the second information includes the identifier of the first candidate relay terminal selected by the remote terminal; the first 3. The information includes the identifier of the second candidate relay terminal;
  • the selection module 802 is configured to select a target path for relay handover according to the second information and/or third information, where the target path includes a target relay terminal and/or a target network side device.
  • the third information also includes:
  • the second candidate relays the connection state information of the terminal.
  • the identifier of the first relay terminal candidate and/or the identifier of the second relay terminal candidate includes at least one of the following:
  • 5G Global Unique Temporary Identifier 5G-GUTI 5G Global Unique Temporary Identifier 5G-GUTI
  • I-RNTI Inactive wireless network temporary identifier
  • the second information further includes: identification information of a serving cell of the first candidate relay terminal;
  • the third information further includes: identification information of a serving cell of the second candidate relay terminal.
  • the selection module includes:
  • a first selection submodule configured to select a target relay terminal and/or for the remote terminal from the first candidate relay terminals according to the identifier of the first candidate relay terminal selected by the remote terminal or the target network-side device.
  • the selection module includes:
  • a first determining submodule configured to determine the connection status of the second candidate relay terminal according to the third information
  • the second selection submodule is configured to select a target relay terminal and/or a target network-side device for the remote terminal according to the connection state of the second candidate relay terminal and a second principle; wherein, the first The two principles include:
  • the second relay terminal in the idle state is selected with the seventh priority as the target relay terminal and/or the target network-side device.
  • the selection module includes:
  • a second determining submodule configured to determine the connection status of the second candidate relay terminal according to the third information
  • the third selection submodule is configured to select the identifier of the first relay terminal candidate, the identifier of the second relay terminal candidate, the connection state of the second relay terminal candidate, and the first relay terminal candidate selected by the remote terminal.
  • the second relay terminal in the idle state is selected with the eleventh priority as the target relay terminal and/or the target network-side device.
  • the remote terminal before the relay switching, obtains the connection status of the relay terminal and notifies the network side device, and the network side device performs relay switching according to the connection status of the relay terminal; or the remote terminal After obtaining the connection status of the relay terminal, the candidate relay terminal is selected according to the connection status, and reported to the network side device; thus, the switching efficiency and efficiency of the non-direct path are effectively improved in the process of performing cross-base station direct path switching on the remote path. user experience.
  • the relay switching processing device provided in the embodiment of the present application is a device capable of executing the above-mentioned relay switching processing method, and all embodiments of the above-mentioned relay switching processing method are applicable to this device, and can achieve the same or similar beneficial effects.
  • the embodiment of the present application also provides a relay switching processing device 900, including:
  • the second sending module 901 is configured to send first information of the relay terminal to a remote terminal, where the first information includes a connection status indicating the relay terminal.
  • the first information includes at least one of the following: the cell radio network temporary identifier C-RNTI of the relay terminal, the inactive radio network temporary identifier I-RNTI of the relay terminal, The 5G temporary mobile subscription identifier 5G-STMSI of the relay terminal, and the connection state information of the relay terminal.
  • the first information further includes: willingness information of the relay terminal to enter the connected state.
  • the device also includes:
  • the second receiving module is configured to receive fourth information sent by the remote terminal, where the fourth information includes at least one of the following:
  • the second sending module includes:
  • the second sending submodule is configured to send the first information to the remote terminal according to the fourth information.
  • the device when the fourth information includes the third request information, the device further include:
  • a second executing module configured to execute a process of entering a connected state according to the third request information when the relay terminal is in an idle state or an inactive state;
  • the second sending module includes:
  • the third sending submodule is configured to send the first information to the remote terminal after entering the connection state.
  • the remote terminal before the relay switching, obtains the connection status of the relay terminal and notifies the network side device, and the network side device performs relay switching according to the connection status of the relay terminal; or the remote terminal After obtaining the connection status of the relay terminal, the candidate relay terminal is selected according to the connection status, and reported to the network side device; thus, the switching efficiency and efficiency of the non-direct path are effectively improved in the process of performing cross-base station direct path switching on the remote path. user experience.
  • the relay switching processing device provided in the embodiment of the present application is a device capable of executing the above-mentioned relay switching processing method, and all embodiments of the above-mentioned relay switching processing method are applicable to this device, and can achieve the same or similar beneficial effects.
  • the relay switching processing apparatus in this embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in the electronic device, such as an integrated circuit or a chip.
  • the electronic device may be a terminal, or other devices other than the terminal.
  • the terminal may include, but not limited to, the types of terminal 11 listed above, and other devices may be servers, Network Attached Storage (NAS), etc., which are not specifically limited in this embodiment of the present application.
  • NAS Network Attached Storage
  • the relay switching processing device provided in the embodiment of the present application can realize each process realized by the method embodiments in FIG. 1 to FIG. 6 , and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • this embodiment of the present application also provides a communication device 1000, including a processor 1001 and a memory 1002, and the memory 1002 stores programs or instructions that can run on the processor 1001, such as
  • the communication device 1000 is a remote terminal, when the program or instruction is executed by the processor 1001, each step of the above embodiment of the relay handover processing method can be implemented, and the same technical effect can be achieved.
  • each step of the above embodiment of the relay handover processing method can be achieved, and the same technical effect can be achieved;
  • the communication device 1000 is a network side device , when the program or instruction is executed by the processor 1001, each step of the above embodiment of the relay handover processing method can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
  • the embodiment of the present application also provides a terminal (the terminal is a relay terminal or a remote terminal), including a processor and a communication interface, where the communication interface is used to obtain first information of the relay terminal, and the first information is used Indicates the connection status of the relay terminal;
  • the relay terminal includes one or more;
  • the processor is configured to perform a first operation according to the first information; the first operation includes at least one of the following :
  • Selecting a candidate relay terminal and sending second information to the network side device, where the second information includes the identifier of the first candidate relay terminal selected by the remote terminal;
  • FIG. 11 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
  • the terminal 1100 includes, but is not limited to: a radio frequency unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, a display unit 1106, a user input unit 1107, an interface unit 1108, a memory 1109, and a processor 1110. At least some parts.
  • the terminal 1100 may also include a power supply (such as a battery) for supplying power to various components, and the power supply may be logically connected to the processor 1110 through the power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions.
  • a power supply such as a battery
  • the terminal structure shown in FIG. 11 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 1104 may include a graphics processing unit (Graphics Processing Unit, GPU) 11041 and a microphone 11042, and the graphics processor 11041 is used in a video capture mode or an image capture mode by an image capture device (such as the image data of the still picture or video obtained by the camera) for processing.
  • the display unit 1106 may include a display panel 11061, and the display panel 11061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 1107 includes at least one of a touch panel 11071 and other input devices 11072 .
  • Touch panel 11071 also called touch screen.
  • the touch panel 11071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 11072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.
  • the radio frequency unit 1101 may transmit the downlink data from the network side device to the processor 1110 for processing after receiving it; in addition, the radio frequency unit 1101 may send uplink data to the network side device.
  • the radio frequency unit 1101 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the memory 1109 can be used to store software programs or instructions as well as various data.
  • the memory 1109 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playing function, image playback function, etc.), etc.
  • memory 1109 may include volatile memory or nonvolatile memory, or, memory 1109 may include both volatile and nonvolatile memory.
  • the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM electronically programmable Erase Programmable Read-Only Memory
  • Flash Flash
  • Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM).
  • RAM Random Access Memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM Double Data Rate SDRAM
  • ESDRAM enhanced synchronous dynamic random access memory
  • Synch link DRAM, SLDRAM synchronous link dynamic random access memory
  • Direct Rambus RAM Direct Rambus RAM
  • the memory 1109 in the embodiment of the present application includes but is
  • the processor 1110 may include one or more processing units; optionally, the processor 1110 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 1110 .
  • the radio frequency unit 1101 is configured to obtain first information of the relay terminal, and the first information is used to indicate the connection state of the relay terminal; the relay terminal includes one or more;
  • the processor 1110 is configured to perform a first operation according to the first information; the first operation includes at least one of the following:
  • Selecting a candidate relay terminal and sending second information to the network side device, where the second information includes the identifier of the first candidate relay terminal selected by the remote terminal;
  • the third information includes an identifier of a second candidate relay terminal
  • the second candidate relay terminal includes: part or all of the relay terminals sending the first information following terminal
  • the radio frequency unit 1101 is configured to send the first information of the relay terminal to the remote terminal, where the first information includes a connection status indicating the relay terminal.
  • the remote terminal before the relay switching, obtains the connection status of the relay terminal and notifies the network side device, and the network side device performs relay switching according to the connection status of the relay terminal; or the remote terminal After obtaining the connection status of the relay terminal, the candidate relay terminal is selected according to the connection status, and reported to the network side device; thus, the switching efficiency and efficiency of the non-direct path are effectively improved in the process of performing cross-base station direct path switching on the remote path. user experience.
  • the relay switching processing device provided in the embodiment of the present application is a device capable of executing the above-mentioned relay switching processing method, and all embodiments of the above-mentioned relay switching processing method are applicable to this device, and can achieve the same or similar beneficial effects.
  • the embodiment of the present application also provides a network side device, including a processor and a communication interface, the communication interface is used to receive the second information and/or third information sent by the remote terminal; the second information includes the remote The identifier of the first candidate relay terminal selected by the terminal terminal; the third information includes the identifier of the second candidate relay terminal; the processor is configured to select the relay terminal according to the second information and/or third information A target path of the relay handover, where the target path includes a target relay terminal and/or a target network-side device.
  • the network-side device embodiment corresponds to the above-mentioned network-side device method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.
  • the embodiment of the present application also provides a network side device.
  • the network side device 1200 includes: an antenna 121 , a radio frequency device 122 , a baseband device 123 , a processor 124 and a memory 125 .
  • the antenna 121 is connected to the radio frequency device 122 .
  • the radio frequency device 122 receives information through the antenna 121, and sends the received information to Send it to the baseband device 123 for processing.
  • the baseband device 123 processes the information to be sent and sends it to the radio frequency device 122
  • the radio frequency device 122 processes the received information and sends it out through the antenna 121 .
  • the method performed by the network side device in the above embodiments may be implemented in the baseband device 123, where the baseband device 123 includes a baseband processor.
  • the baseband device 123 may include at least one baseband board, for example, a plurality of chips are arranged on the baseband board, as shown in FIG.
  • the program executes the network device operations shown in the above method embodiments.
  • the network side device may also include a network interface 126, such as a common public radio interface (Common Public Radio Interface, CPRI).
  • a network interface 126 such as a common public radio interface (Common Public Radio Interface, CPRI).
  • CPRI Common Public Radio Interface
  • the network side device 1200 in this embodiment of the present invention further includes: instructions or programs stored in the memory 125 and executable on the processor 124, and the processor 124 calls the instructions or programs in the memory 125 to execute the various programs shown in FIG.
  • the method of module execution achieves the same technical effect, so in order to avoid repetition, it is not repeated here.
  • the embodiment of the present application also provides a readable storage medium, where a program or instruction is stored on the readable storage medium, and when the program or instruction is executed by the processor, each process of the above embodiment of the relay switching processing method is implemented, and can To achieve the same technical effect, in order to avoid repetition, no more details are given here.
  • the processor is the processor in the terminal described in the foregoing embodiments.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk, and the like.
  • the embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the above-mentioned relay switching processing method
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is used to run programs or instructions to implement the above-mentioned relay switching processing method
  • the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
  • An embodiment of the present application further provides a computer program product, the computer program product is stored in a storage medium, and the computer program product is executed by at least one processor to implement the processes in the above embodiments of the relay switching processing method, And can achieve the same technical effect, in order to avoid repetition, no more details here.
  • the embodiment of the present application also provides a communication system, including: a remote terminal, a relay terminal, and a network-side device, the remote terminal can be used to perform the steps of the above-mentioned relay handover processing method, and the network-side
  • the remote terminal can be used to perform the steps of the above-mentioned relay handover processing method
  • the network-side The device may be used to execute the steps of the above-mentioned relay handover processing method
  • the relay terminal may be used to execute the above-mentioned relay handover processing method steps.
  • the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation.
  • the technical solution of the present application can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, etc.) , CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

La présente demande, qui relève du domaine des communications, divulgue un procédé et un appareil de traitement de commutation de relais, un terminal distant, un terminal relais et un dispositif du côté réseau. Le procédé dans des modes de réalisation de la présente demande comprend : l'obtention, par un terminal distant, de premières informations de terminaux relais, les premières informations étant utilisées pour indiquer des états de connexion des terminaux relais ; et la réalisation, par le terminal distant, d'une première opération selon les premières informations, la première opération comprenant ce qui suit : la détermination des états de connexion des terminaux relais ; et/ou la sélection de terminaux relais de rechange, et l'envoi de deuxièmes informations à un dispositif du côté réseau, les deuxièmes informations comprenant un identifiant d'un premier terminal relais de rechange sélectionné par le terminal distant ; et/ou l'envoi de troisièmes informations au dispositif du côté réseau, les troisièmes informations comprenant un identifiant d'un deuxième terminal relais de rechange, et le deuxième terminal relais de rechange comprenant : une partie ou l'intégrité des terminaux relais parmi les terminaux relais qui envoient les premières informations.
PCT/CN2023/073282 2022-01-27 2023-01-20 Procédé et appareil de traitement de commutation de relais, terminal distant, terminal relais et dispositif du côté réseau WO2023143421A1 (fr)

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