WO2024036540A1 - 连接释放方法、装置、存储介质及芯片 - Google Patents

连接释放方法、装置、存储介质及芯片 Download PDF

Info

Publication number
WO2024036540A1
WO2024036540A1 PCT/CN2022/113163 CN2022113163W WO2024036540A1 WO 2024036540 A1 WO2024036540 A1 WO 2024036540A1 CN 2022113163 W CN2022113163 W CN 2022113163W WO 2024036540 A1 WO2024036540 A1 WO 2024036540A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
release
connection
sidelink
indication
Prior art date
Application number
PCT/CN2022/113163
Other languages
English (en)
French (fr)
Inventor
杨星
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2022/113163 priority Critical patent/WO2024036540A1/zh
Priority to CN202280003153.4A priority patent/CN115669205A/zh
Publication of WO2024036540A1 publication Critical patent/WO2024036540A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/18—Management of setup rejection or failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/34—Selective release of ongoing connections

Definitions

  • the present disclosure relates to the field of communication technology, and specifically, to a connection release method, device, storage medium and chip.
  • V2X Vehicle-to-Everything
  • each vehicle can serve as a terminal, and terminals can communicate with each other through direct sidelinks, such as direct connection for information transmission, thereby effectively reducing communication delays.
  • U2U relay communication When two terminals performing sidelink communication are far apart, they can communicate through a relay terminal (such as Relay UE). This communication method can be called U2U relay communication. In U2U relay communication, through the relay The two terminals communicating with each other may be called remote terminals or remote UEs (remote UE). In related technologies, there is a problem that the sidelink connection of the remote terminal cannot be released in time, which will occupy the resources of the terminal and affect the data transmission efficiency.
  • the present disclosure provides a connection release method, device, storage medium and chip.
  • a connection release method is provided, applied to a first terminal, and the method includes:
  • connection release event In response to triggering a connection release event, release the first direct link sidelink connection established by the first terminal with the second terminal through the relay terminal; the connection release event is used to indicate the release of the first terminal with the middle terminal. Following the terminal's second sidelink connection.
  • the method further includes:
  • releasing the second sidelink connection between the first terminal and the relay terminal includes:
  • releasing the first direct link sidelink connection established by the first terminal with the second terminal through the relay terminal includes:
  • the first release parameter is transmitted to the higher layer of the first terminal through the access layer of the first terminal; the first release parameter is used to notify the higher layer to release the first sidelink connection.
  • the first release parameter includes a preset release reason parameter, and the preset release reason parameter is used to indicate that the second sidelink connection between the first terminal and the relay terminal is interrupted.
  • connection release event includes:
  • the access layer receives the target release indication from the higher layer; the target release indication is used to instruct the access layer to release the second sidelink connection.
  • connection release event includes:
  • a sidelink wireless link failure occurs in the second sidelink connection between the first terminal and the relay terminal.
  • connection release event includes:
  • a target indication sent by the relay terminal is received; the target indication is used to indicate that the third sidelink connection between the relay terminal and the second terminal is interrupted.
  • the target indication includes a first indication, the first indication being used to indicate that a sidelink wireless link failure occurs in the third sidelink connection between the relay terminal and the second terminal.
  • the target indication includes a second indication, the second indication being used to indicate that the third sidelink connection between the relay terminal and the second terminal is released.
  • connection release event includes:
  • a connection release method is provided, applied to a relay terminal, and the method includes:
  • the target indication includes a first indication, the first indication being used to indicate that a sidelink wireless link failure occurs in the third sidelink connection between the relay terminal and the second terminal.
  • the target indication includes a second indication, the second indication being used to indicate that the third sidelink connection between the relay terminal and the second terminal is released.
  • a connection release device applied to a first terminal, and the device includes:
  • the first release module is configured to release the first direct link sidelink connection established by the first terminal with the second terminal through the relay terminal in response to triggering a connection release event; the connection release event is used to indicate the release of all The first terminal is connected to a second sidelink of the relay terminal.
  • the device further includes:
  • the second release module is configured to release the second sidelink connection between the first terminal and the relay terminal.
  • the second release module is configured to notify the higher layer of the first terminal to release the second sidelink connection through the access layer of the first terminal.
  • the first release module is configured to transmit a first release parameter to a higher layer of the first terminal through the access layer of the first terminal; the first release parameter is used to notify the The higher layer releases the first sidelink connection.
  • the first release parameter includes a preset release reason parameter, and the preset release reason parameter is used to indicate that the second sidelink connection between the first terminal and the relay terminal is interrupted.
  • connection release event includes:
  • the access layer receives the target release indication from the higher layer; the target release indication is used to instruct the access layer to release the second sidelink connection.
  • connection release event includes:
  • a sidelink wireless link failure occurs in the second sidelink connection between the first terminal and the relay terminal.
  • connection release event includes:
  • a target indication sent by the relay terminal is received; the target indication is used to indicate that the third sidelink connection between the relay terminal and the second terminal is interrupted.
  • the target indication includes a first indication, the first indication being used to indicate that a sidelink wireless link failure occurs in the third sidelink connection between the relay terminal and the second terminal.
  • the target indication includes a second indication, the second indication being used to indicate that the third sidelink connection between the relay terminal and the second terminal is released.
  • connection release event includes:
  • a connection release device applied to a relay terminal, and the device includes:
  • the first sending module is configured to send a target indication to the first terminal so that the first terminal responds when it is determined that the third direct link sidelink connection between the relay terminal and the second terminal is interrupted.
  • Upon receiving the target indication release the first direct link sidelink connection established by the first terminal with the second terminal through the relay terminal, where the target indication is used to instruct the relay terminal with the second terminal.
  • the third sidelink connection between terminals is broken.
  • the target indication includes a first indication, the first indication being used to indicate that a sidelink wireless link failure occurs in the third sidelink connection between the relay terminal and the second terminal.
  • the target indication includes a second indication, the second indication being used to indicate that the third sidelink connection between the relay terminal and the second terminal is released.
  • connection release device including:
  • Memory used to store instructions executable by the processor
  • the processor is configured to execute the steps of the connection release method provided by the first aspect of the present disclosure.
  • connection release device including:
  • Memory used to store instructions executable by the processor
  • the processor is configured to execute the steps of the connection release method provided in the second aspect of this disclosure.
  • a computer-readable storage medium on which computer program instructions are stored.
  • the steps of the connection release method provided by the first aspect of the present disclosure are implemented. .
  • a computer-readable storage medium on which computer program instructions are stored.
  • the steps of the connection release method provided by the second aspect of the present disclosure are implemented. .
  • a chip including: a processor and an interface; the processor is configured to read instructions to execute the steps of the connection release method provided in the first aspect of the disclosure,
  • a chip including: a processor and an interface; the processor is configured to read instructions to execute the steps of the connection release method provided in the second aspect of the present disclosure.
  • the first terminal may release the first direct link sidelink connection established by the first terminal with the second terminal through the relay terminal in response to triggering a connection release event; wherein , this connection release event is used to indicate releasing the second sidelink connection between the first terminal and the relay terminal.
  • this connection release event is used to indicate releasing the second sidelink connection between the first terminal and the relay terminal.
  • FIG. 1 is a schematic diagram of a communication system according to an exemplary embodiment.
  • Figure 2 is a flow chart of a connection release method according to an exemplary embodiment.
  • Figure 3 is a flow chart of a connection release method according to an exemplary embodiment.
  • Figure 4 is a flow chart of a connection release method according to an exemplary embodiment.
  • Figure 5 is a flow chart of a connection release method according to an exemplary embodiment.
  • Figure 6 is a block diagram of a connection release device according to an exemplary embodiment.
  • Figure 7 is a block diagram of a connection release device according to an exemplary embodiment.
  • Figure 8 is a block diagram of a connection release device according to an exemplary embodiment.
  • Figure 9 is a block diagram of a connection release device according to an exemplary embodiment.
  • plural refers to two or more than two, and other quantifiers are similar; "at least one (item)”, “one (item) or multiple (pieces)” or similar expressions refer to any combination of these items (numbers), including any combination of single items (numbers) or plural items (numbers).
  • At least one item (a) can represent any number of a; for another example, one (item) or multiple items (a) among a, b and c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be single or multiple; "and/or" is an association relationship that describes associated objects, indicating that there can be three relationships, for example, A and/ or B, can mean: A alone, A and B exist simultaneously, and B alone, where A and B can be singular or plural.
  • the technical solutions of the embodiments of the present disclosure can be applied to various communication systems.
  • the communication system may include one or more of a 4G (the 4th Generation, fourth generation) communication system, a 5G (the 5th Generation, the fifth generation) communication system, and other future wireless communication systems (such as 6G).
  • the communication system may also include a Public Land Mobile Network (PLMN) network, a Device-to-Device (D2D) communication system, a Machine to Machine (M2M) communication system, One or more of the Internet of Things (IoT) communication system, Vehicle-to-Everything (V2X) communication system or other communication systems.
  • PLMN Public Land Mobile Network
  • D2D Device-to-Device
  • M2M Machine to Machine
  • IoT Internet of Things
  • V2X Vehicle-to-Everything
  • FIG 1 is a schematic diagram of a communication system according to an exemplary embodiment.
  • the communication system may include a terminal device 150 and a network device 160.
  • the communication system can be used to support 4G network access technology, such as Long Term Evolution (LTE) access technology, or 5G network access technology, such as New Radio Access Technology (New RAT), Or, other future wireless communication technologies.
  • LTE Long Term Evolution
  • 5G network access technology such as New Radio Access Technology (New RAT), Or, other future wireless communication technologies.
  • the number of network devices and terminal devices can be one or more.
  • the number of network devices and terminal devices in the communication system shown in Figure 1 is only an example of adaptability. This disclosure is No restrictions.
  • the network equipment in Figure 1 can be used to support terminal access.
  • the network equipment can be an evolutionary Node B (eNB or eNodeB) in LTE; the network equipment can also be a next-generation base station in the 5G network (the next Generation Node B, gNB or gNodeB); the network equipment can also be the wireless access network (NG Radio Access Network, NG-RAN) equipment in the 5G network; the network equipment can also be the public land mobile network evolved in the future (Public Land Mobile Network, PLMN) base stations, Broadband Network Gateway (BNG), aggregation switches or non-3GPP (3rd Generation Partnership Project, third generation partner project) access equipment, etc.
  • PLMN Public Land Mobile Network
  • BNG Broadband Network Gateway
  • aggregation switches or non-3GPP (3rd Generation Partnership Project, third generation partner project) access equipment, etc.
  • the network equipment in the embodiments of the present disclosure may include various forms of base stations, such as: macro base stations, micro base stations (also called small stations), relay stations, access points, 5G base stations or future base stations, satellites, Transmitting and Receiving Point (TRP), Transmitting Point (TP), mobile switching center and Device-to-Device (D2D), Machine-to-Machine (M2M), Internet of Things (IoT), Vehicle-to-Everything (V2X) or other devices that perform base station functions in communications, etc., are not specifically limited in the embodiments of this disclosure.
  • devices that provide wireless communication functions for terminal equipment are collectively referred to as network equipment or base stations.
  • the terminal device in Figure 1 can be an electronic device that provides voice or data connectivity.
  • the terminal device can also be called user equipment (User Equipment, UE), subscriber unit (Subscriber Unit), mobile station (Mobile Station). ), Station, Terminal, etc.
  • the terminal device may include a smartphone, a smart wearable device, a smart speaker, a smart tablet, a wireless modem, a wireless local loop (Wireless Local Loop, WLL) station, a PDA (Personal Digital Assistant, personal digital assistant) ), CPE (Customer Premise Equipment, customer terminal equipment), etc.
  • devices that can access the communication system can communicate with the network equipment of the communication system, can communicate with other objects through the communication system, or can communicate directly between two or more devices
  • the devices can all be terminal devices in the embodiments of the present disclosure; for example, terminals and cars in smart transportation, household equipment in smart homes, power meter reading instruments, voltage monitoring instruments, environmental monitoring instruments, and intelligent safety networks in smart grids. Video monitoring instruments, cash registers, etc.
  • the terminal device can communicate with the network device. Communication between multiple terminal devices is also possible.
  • the terminal device may be static or fixed, or may be mobile, which is not limited in this disclosure.
  • the terminal device 150 may include a first terminal 151, a second terminal 152 and a relay terminal 153, where the first terminal 151 and the second terminal 152 may not be directly linked, but Communication is performed through the relay terminal 153.
  • the relay terminal 153 can provide a relay function for the communication between the first terminal 151 and the second terminal 152, such as forwarding communication data.
  • This communication method can be called U2U (UE to UE, Terminal to terminal) relay communication, wherein the first terminal and the second terminal may be called remote terminals or remote UEs (remote UE).
  • U2U relay communication the communication method between multiple terminals may include any one or more of unicast, multicast, or broadcast.
  • the first terminal can send the sidelink data to the relay terminal in a unicast manner, and then the relay terminal can also forward the sidelink data to the second terminal in a unicast manner.
  • the first terminal can be called For Source remote UE
  • the relay terminal may be called relay UE
  • the second terminal may be called Target remote UE.
  • the second terminal can send the sidelink data to the relay terminal in a unicast manner, and then the relay terminal can also forward the sidelink data to the first terminal in a unicast manner.
  • the second terminal can Called Source remote UE, the relay terminal may be called relay UE, and the first terminal may be called Target remote UE.
  • first terminal when the first terminal maintains a unicast connection with the second terminal through the relay terminal, it may be called a sidelink indirect link.
  • first terminal directly maintains a unicast connection with the second terminal it may be called a sidelink direct link.
  • the first terminal may be connected to the network device, or may not be directly connected to the network device, but may be connected to the network device through the relay terminal 153 or other terminals that provide relay functions; similarly, the second terminal It may be connected to the network device, or it may not be directly connected to the network device, but may be connected to the network device through the relay terminal 153 or other terminals that provide relay functions. This disclosure does not limit this.
  • the physical terminal device can serve as a relay terminal; when performing data communication with other terminals through other relay terminals, the physical terminal device can As the above-mentioned first terminal or second terminal.
  • the same physical terminal device can be used as a relay terminal in a U2U link, as the first terminal (such as a data sender) in another U2U link, or as another U2U link. the second terminal (such as the data receiving terminal).
  • a physical terminal device can also only provide relay functions (that is, only serve as the above-mentioned relay terminal), or only provide ordinary sidelink communication functions (that is, only serve as the above-mentioned first terminal or second terminal). This disclosure is for There is no restriction on this either.
  • the first terminal may establish two connections, including: the first direct link sidelink connection established between the first terminal and the second terminal through the relay terminal, and the first terminal and the second terminal.
  • the above-mentioned sidelink connection can be a PC5-RRC (Radio Resource Control, Radio Resource Control) connection established through the PC5 interface.
  • RLF Radio Link Failure
  • the sidelink connection is a unicast connection, if the following RLF (Radio Link Failure) occurs in the unicast connection , wireless link failure) event, you can trigger sidelink wireless link failure:
  • the sidelink RLC entity sends to the target terminal the maximum number of retransmissions.
  • RRC receives a sidelink RLC entity notification and determines that the sidelink RLC entity has sent the maximum number of retransmissions to the target terminal.
  • the target terminal may be the opposite terminal connected to the sidelink, such as a second terminal or a relay terminal.
  • RLF event 2 T400 timer times out.
  • the T400 timer may be started by the first terminal after transmitting RRCReconfigurationSidelink, and the duration of the T400 timer may be a preset duration.
  • RLF event 3 The number of consecutive feedback losses from the target terminal reaches the maximum.
  • RRC receives a sidelink MAC (Medium Access Control, Media Access Control) entity notification that the number of consecutive feedback losses of the target terminal reaches the maximum value.
  • the number of consecutive feedback losses can be the number of consecutive HARQ DTX times.
  • the target terminal can Is the opposite terminal connected to the sidelink, such as the second terminal or relay terminal.
  • RLF event 4 The integrity check of the sidelink signaling bearer failed.
  • the sidelink signaling bearer may include SL-SRB2 and/or SL-SRB3.
  • the RLF event four may include the RRC receiving a sidelink PDCP (Packet Data Convergence Protocol, Packet Data Convergence Protocol) entity notification and the integrity detection of SL-SRB2 or SL-SRB3 failing.
  • PDCP Packet Data Convergence Protocol, Packet Data Convergence Protocol
  • the first terminal may release the sidelink connection in which the sidelink wireless link failure occurred.
  • the first terminal cannot continue to communicate with the second terminal through the relay terminal, but the sidelink connection between the first terminal and the second terminal If the connection is not actively released and is still maintained, this will occupy the resources of the first terminal and cause the first terminal to be unable to establish a new connection with the second terminal, resulting in data transmission delay.
  • connection release method a connection release method, device, storage medium and chip.
  • Figure 2 illustrates a connection release method according to an exemplary embodiment. This method can be applied to the first terminal in the above communication system. As shown in Figure 2, the method may include:
  • the first terminal releases the first direct link sidelink connection established by the first terminal with the second terminal through the relay terminal.
  • connection release event is used to indicate releasing the second sidelink connection between the first terminal and the relay terminal.
  • the first terminal and the second terminal can perform U2U communication through the relay terminal.
  • the first terminal can establish a second sidelink connection with the relay terminal, and establish a first sidelink connection with the second terminal through the relay terminal. sidelink connection.
  • the connection release event indicating the release of the second sidelink connection is triggered, the first sidelink connection can be released, thereby avoiding the problem that the first terminal maintains an invalid first sidelink connection after the second sidelink connection is released. Lead to waste of resources.
  • both the above-mentioned first sidelink connection and the second sidelink connection may be PC5-RRC connections.
  • the first terminal in response to triggering a connection release event, may first determine the first direct link sidelink connection established by the first terminal with the second terminal through the relay terminal, and then release the first sidelink connection.
  • the first terminal may perform U2U communication with multiple second terminals through the same relay terminal. In this way, the first terminal may respond to triggering the connection
  • the release event determines multiple first sidelink connections established by the first terminal with multiple second terminals through the relay terminal, and releases the first sidelink connections. That is to say, when the first terminal determines to release the second sidelink connection between the first terminal and the relay terminal, it may release multiple first sidelink connections through the relay terminal.
  • the first terminal can release the first direct link sidelink connection established by the first terminal with the second terminal through the relay terminal in response to triggering the connection release event; wherein, the connection release event is used to indicate the release of the first direct link sidelink connection.
  • the terminal is connected to the second sidelink of the relay terminal.
  • Figure 3 shows another connection release method according to an exemplary embodiment. As shown in Figure 3, the method may include:
  • the first terminal triggers a connection release event.
  • connection release event is used to indicate releasing the second sidelink connection between the first terminal and the relay terminal.
  • the first terminal may trigger the connection release event when the connection release event occurs.
  • the connection release event can be triggered when an instruction to release the second sidelink connection is received.
  • the first terminal releases the first sidelink connection established by the first terminal with the second terminal through the relay terminal.
  • the first terminal in response to triggering a connection release event, may first determine the first sidelink connection established by the first terminal with the second terminal through the relay terminal, and then release the first sidelink connection.
  • the first terminal may first send a first connection release request message (Disconnect Request) to the second terminal, and after receiving the first connection release response message sent by the second terminal in response to the first connection release request (Disconnect Response), resources related to the first sidelink connection can be released.
  • Connect Request a first connection release request message
  • Disconnect Response a first connection release response message sent by the second terminal in response to the first connection release request
  • the first terminal may first send a first connection release request message to the second terminal, and the first connection release sent by the second terminal in response to the first connection release request is not received within a preset time. In the event of a response message, resources related to the first sidelink connection can also be released.
  • the first terminal may directly release resources related to the first sidelink connection.
  • the first terminal releases the second sidelink connection between the first terminal and the relay terminal.
  • the first terminal may first send a second connection release request message (Disconnect Request) to the relay terminal, and then receive a second connection release response message sent by the relay terminal in response to the second connection release request. (Disconnect Response), resources related to the second sidelink connection can be released.
  • Connection Request a second connection release request message
  • Disconnect Response a second connection release response message sent by the relay terminal in response to the second connection release request.
  • the first terminal may first send a second connection release request message to the relay terminal, and the second connection release sent by the relay terminal in response to the second connection release request is not received within a preset time. In the case of a response message, resources related to the second sidelink connection can also be released.
  • the first terminal may directly release resources related to the second sidelink connection.
  • the first terminal can release both the first sidelink connection and the second sidelink connection to avoid resource waste.
  • the first terminal may first perform the step of releasing the first sidelink connection, and then perform the step of releasing the second sidelink connection.
  • the first terminal may first perform the step of releasing the second sidelink connection, and then perform the step of releasing the first sidelink connection.
  • the first terminal may simultaneously perform the steps of releasing the first sidelink connection and releasing the second sidelink connection.
  • the access layer of the first terminal may notify the higher layer to simultaneously release the first sidelink connection and the second sidelink connection.
  • the first terminal may first perform the step of releasing the first sidelink connection, and then perform the step of releasing the second sidelink connection after determining that the first sidelink connection is released.
  • the first sidelink connection is a connection established between the first terminal and the second terminal through a relay terminal, communication needs to rely on the second sidelink connection.
  • the relay terminal sends a first connection release request message to the second terminal so that the second terminal also releases the sidelink connection with the first terminal.
  • the step of releasing the second sidelink connection is performed.
  • the access layer of the first terminal may first notify the higher layer to release the first sidelink connection, and then notify the higher layer to release the second sidelink connection when it is determined that the first sidelink connection is released (for example, a first release success indication sent by the higher layer is received). sidelink connection.
  • the first terminal may include an access layer and an upper layer (the upper layer may also be called a non-access layer).
  • the first terminal may notify the upper layer (upper layer) to release the first sidelink connection through the access layer.
  • the first terminal may transmit a first release parameter to a higher layer through the access layer; the first release parameter is used to notify the higher layer to release the first sidelink connection.
  • the higher layer releases the first sidelink connection.
  • the higher layer may send a connection release request message (Disconnect Request) to the second terminal and release resources related to the first sidelink connection.
  • the access layer may send a first release message to the higher layer, and carry the first release parameter in the first release message.
  • the first release parameter may be a preset parameter in the memory, and the access layer may set the value of the first release parameter to the first preset value to notify the higher layer to release the first sidelink connection.
  • the first release parameter may include a preset release reason parameter, and the preset release reason parameter is used to indicate that the second sidelink connection between the first terminal and the relay terminal is interrupted.
  • the preset release reason parameter may be trunk link interruption.
  • the meaning of the interruption of the second sidelink connection may include: the second sidelink connection has been interrupted or is about to be interrupted.
  • the first terminal releases the second sidelink connection in response to triggering the above connection release event before releasing the first sidelink connection, it can be determined that the second sidelink connection has been interrupted; conversely, if the first terminal releases the first sidelink connection before Before the sidelink connection, although the above connection release event has been triggered and it is determined that the second sidelink connection is to be released, but the steps to release the first sidelink connection have not yet been executed, it can be determined that the second sidelink connection will be interrupted, regardless of whether the second sidelink connection is to be released. Whether the connection has been interrupted or is about to be interrupted, the preset release reason parameter can be used to indicate that the second sidelink connection is interrupted.
  • the first terminal may also notify the higher layer through the access layer to release the second sidelink connection.
  • the first terminal can release the first sidelink through the cooperation of the access layer and the upper layer.
  • connection release event may include one or more of the following events:
  • Connection release event 1 The access layer of the first terminal receives the target release indication from the upper layer.
  • the target release indication may be used to instruct the access layer to release the second sidelink connection.
  • the first terminal may release the first sidelink connection upon receiving a target release indication from a higher layer.
  • the first sidelink connection established by the first terminal with the second terminal through the relay terminal may be first determined, and then the first sidelink connection is released.
  • the access layer of the first terminal since the target release indication is sent by the higher layer, the access layer of the first terminal does not need to notify the higher layer to release the second sidelink connection.
  • the first terminal can release the first sidelink connection based on the target release indication from the higher layer.
  • Connection release event 2 A sidelink wireless link failure occurs in the second sidelink connection between the first terminal and the relay terminal.
  • the first terminal may release the first sidelink connection when it is determined that a sidelink wireless link failure occurs in the second sidelink connection.
  • the first sidelink connection established by the first terminal with the second terminal through the relay terminal may be first determined, and then the first sidelink connection is released.
  • a preset RLF event when a preset RLF event occurs in the second sidelink connection, it may be determined that a sidelink wireless link failure occurs in the second sidelink connection.
  • the preset RLF event may include any one or more of the RLF events one to four mentioned above in this disclosure, which will not be described again here.
  • Connection release event 3 Receive the target indication sent by the relay terminal.
  • the target indication may be used to indicate interruption of the third sidelink connection between the relay terminal and the second terminal.
  • the first terminal may release the first sidelink connection upon receiving the target indication sent by the relay terminal.
  • the first sidelink connection established by the first terminal with the second terminal through the relay terminal may be first determined, and then the first sidelink connection is released.
  • the relay terminal may send the target indication to the first terminal when it is determined that the third direct link sidelink connection between the relay terminal and the second terminal is interrupted.
  • Connection release event 4 The target indication sent by the relay terminal is received, and based on the target indication, it is determined that the sidelink connections between multiple second terminals that maintain sidelink connections with the first terminal through the relay terminal and the relay terminal are all interrupted.
  • the target indication may be used to indicate interruption of the third sidelink connection between the relay terminal and the second terminal.
  • the first terminal may receive a target indication sent by the relay terminal, and determine according to the target indication that the second terminal is connected to the first terminal through the relay terminal.
  • the sidelink connections between multiple second terminals and the relay terminal that a terminal maintains sidelink connections with are all interrupted, determine the first sidelink connection established by the first terminal with the second terminal through the relay terminal, and release the first sidelink connection. .
  • the first terminal can maintain sidelink connections with N second terminals through the relay terminal (N is a positive integer greater than or equal to 1).
  • N is a positive integer greater than or equal to 1).
  • the above target indication can be used to indicate that the relay terminal is connected to one or The third sidelink connections of multiple second terminals are interrupted.
  • the first terminal determines that the third sidelink connections of the above-mentioned N second terminals are all interrupted based on the received target instructions, it triggers a connection release event (that is, it determines to release the second sidelink connection). At this time, the N first sidelink connections can be released. sidelink connection, and releases the second sidelink connection between the first terminal and the relay terminal.
  • the first terminal determines according to the target indication that the third sidelink connections between M second terminals and the relay terminal are interrupted, and M is less than N, it can continue to maintain the second sidelink connection between the first terminal and the relay terminal and only release the third sidelink connection.
  • One terminal only needs to be connected to the first sidelinks of the M second terminals indicated in the target indication.
  • the meaning of the above third sidelink connection interruption may include: the third sidelink connection has been interrupted or is about to be interrupted.
  • the relay terminal may send the above target indication after releasing the third sidelink connection, and the target indication is used to indicate that the third sidelink connection has been interrupted; for another example, the relay terminal may determine to release the third sidelink connection but When the release step has not been executed, the above target indication is sent to the first terminal, and the target indication is used to indicate that the third sidelink connection is about to be interrupted.
  • the above target indication may include a first indication, which is used to indicate that a sidelink wireless link failure occurs in the third sidelink connection between the relay terminal and the second terminal.
  • the relay terminal may determine that a sidelink wireless link failure occurs in the third sidelink connection.
  • the preset RLF event may include any one or more of the RLF events one to four mentioned above in this disclosure, which will not be described again here.
  • the above target indication may include a second indication, which is used to indicate that the third sidelink connection between the relay terminal and the second terminal is released.
  • the relay terminal may actively release the second sidelink connection, or release the third sidelink connection based on the request of the second terminal, or release the third sidelink connection based on instructions from the network device, or release the third sidelink connection based on instructions triggered by the user.
  • this disclosure does not limit the way in which the relay terminal triggers the release of the third sidelink connection.
  • the meaning of the third sidelink connection being released may include: the third sidelink connection has been released or is about to be released.
  • the relay terminal may send the above-mentioned second indication after releasing the third sidelink connection, and the second indication is used to indicate that the third sidelink connection has been released; for another example, the relay terminal may determine to release the third sidelink connection.
  • the above target indication is sent to the first terminal, and the target indication is used to indicate that the third sidelink connection is about to be released.
  • the target indication may include only the first indication, only the second indication, or may include both the first indication and the second indication, and this disclosure is not limiting.
  • the first terminal can release the first sidelink connection in time based on different instructions from the relay terminal.
  • Figure 4 illustrates a connection release method according to an exemplary embodiment. This method can be applied to relay terminals in the above communication system. As shown in Figure 4, the method may include:
  • the relay terminal determines that the third direct link sidelink connection with the second terminal is interrupted, the relay terminal sends a target indication to the first terminal.
  • the third sidelink connection is a sidelink connection between the relay terminal and the second terminal.
  • the first terminal may release the first sidelink connection in response to receiving the target indication, and the target indication may be used to indicate the interruption of the third sidelink connection between the relay terminal and the second terminal.
  • the above target indication may include a first indication and/or a second indication, for example:
  • the above target indication may include a first indication, which may be used to indicate that a sidelink wireless link failure occurs in the third sidelink connection between the relay terminal and the second terminal.
  • the relay terminal may determine that a sidelink wireless link failure occurs in the third sidelink connection.
  • the preset RLF event may include any one or more of the aforementioned RLF events one to four in this disclosure, which will not be described again here.
  • the above target indication may include a second indication, and the second indication may be used to indicate that the third sidelink connection between the relay terminal and the second terminal is released.
  • the relay terminal may actively release the second sidelink connection, or release the third sidelink connection based on the request of the second terminal, or release the third sidelink connection based on instructions from the network device, or release the third sidelink connection based on instructions triggered by the user.
  • sidelink connection this disclosure does not limit the way in which the relay terminal triggers the release of the third sidelink connection.
  • the meaning of the third sidelink connection being released may include: the third sidelink connection has been released or is about to be released.
  • the relay terminal may send the above-mentioned second indication after releasing the third sidelink connection, and the second indication is used to indicate that the third sidelink connection has been released; for another example, the relay terminal may determine to release the third sidelink connection.
  • the above target indication is sent to the first terminal, and the target indication is used to indicate that the third sidelink connection is about to be released.
  • Figure 5 illustrates a connection release method according to an exemplary embodiment. As shown in Figure 5, the method may include:
  • the relay terminal determines that the third direct link sidelink connection with the second terminal is interrupted, the relay terminal sends a target indication to the first terminal.
  • the third sidelink connection is a sidelink connection between the relay terminal and the second terminal, and the target indication may be used to indicate interruption of the third sidelink connection.
  • the first terminal releases the first sidelink connection.
  • the first sidelink connection is a sidelink connection between the first terminal and the second terminal.
  • the first terminal when receiving the target indication sent by the relay terminal, the first terminal may determine the first sidelink connection established by the first terminal with the second terminal through the relay terminal, and release the first sidelink connection.
  • the above target indication may include a first indication and/or a second indication, for example:
  • the relay terminal when the relay terminal determines that a sidelink wireless link failure occurs in the third sidelink connection, the relay terminal may send a first indication to the first terminal; in response to receiving the first indication, the first terminal may release First sidelink connection.
  • the first indication may be used to indicate that a sidelink wireless link failure occurs in the third sidelink connection between the relay terminal and the second terminal.
  • the relay terminal may send a second indication to the first terminal after determining that the third sidelink connection is released; the first terminal may release the first sidelink connection in response to receiving the second indication. .
  • the second indication is used to indicate that the third sidelink connection between the relay terminal and the second terminal is released.
  • the first terminal may release the first sidelink connection and the second sidelink connection in response to receiving the target indication, wherein the second sidelink connection is between the first terminal and the relay terminal. sidelink connection between.
  • the relay terminal can send a target indication to the first terminal when it is determined that the third direct link sidelink connection with the second terminal is interrupted, and the first terminal can respond to receiving the target indication, Release the first sidelink connection.
  • the first terminal can timely release the first sidelink connection that cannot continue communication, reducing the resource occupation of the first terminal, and the first terminal can establish a new connection with the second terminal more quickly based on business needs, without having to wait for the original The connection is released, thereby avoiding the problem of data transmission delay and improving data transmission efficiency.
  • FIG. 6 is a block diagram of a connection release device 2100 according to an exemplary embodiment.
  • the device can be applied to the first terminal.
  • the device 2100 may include:
  • the first release module 2101 is configured to release the first direct link sidelink connection established by the first terminal with the second terminal through the relay terminal in response to triggering a connection release event; the connection release event is used to indicate release The first terminal is connected to the second sidelink of the relay terminal.
  • FIG. 7 is a block diagram of a connection release device 2100 according to an exemplary embodiment. As shown in Figure 7, the device 2100 may also include:
  • the second release module 2102 is configured to release the second sidelink connection between the first terminal and the relay terminal.
  • the second release module 2102 is configured to notify the higher layer of the first terminal to release the second sidelink connection through the access layer of the first terminal.
  • the first release module 2101 is configured to transmit a first release parameter to a higher layer of the first terminal through the access layer of the first terminal; the first release parameter is used to notify The higher layer releases the first sidelink connection.
  • the first release parameter includes a preset release reason parameter, and the preset release reason parameter is used to indicate that the second sidelink connection between the first terminal and the relay terminal is interrupted.
  • connection release event includes:
  • the access layer receives the target release indication from the higher layer; the target release indication is used to instruct the access layer to release the second sidelink connection.
  • connection release event includes:
  • a sidelink wireless link failure occurs in the second sidelink connection between the first terminal and the relay terminal.
  • connection release event includes:
  • a target indication sent by the relay terminal is received; the target indication is used to indicate that the third sidelink connection between the relay terminal and the second terminal is interrupted.
  • the target indication includes a first indication, the first indication being used to indicate that a sidelink wireless link failure occurs in the third sidelink connection between the relay terminal and the second terminal.
  • the target indication includes a second indication, the second indication being used to indicate that the third sidelink connection between the relay terminal and the second terminal is released.
  • connection release event includes:
  • FIG. 8 is a block diagram of a connection release device 2200 according to an exemplary embodiment.
  • the device can be applied to relay terminals.
  • the device 2200 may include:
  • the first sending module 2201 is configured to send a target indication to the first terminal when it is determined that the third direct link sidelink connection between the relay terminal and the second terminal is interrupted, so that the first terminal In response to receiving the target indication, release the first direct link sidelink connection established by the first terminal with the second terminal through the relay terminal, where the target indication is used to instruct the relay terminal with the third terminal.
  • the third sidelink connection between the two terminals is interrupted.
  • the target indication includes a first indication, the first indication being used to indicate that a sidelink wireless link failure occurs in the third sidelink connection between the relay terminal and the second terminal.
  • the target indication includes a second indication, the second indication being used to indicate that the third sidelink connection between the relay terminal and the second terminal is released.
  • connection release device 3000 may be a terminal device (such as a first terminal, a second terminal or a relay terminal) in the communication system shown in FIG. 1, or may be a network device in the communication system.
  • the apparatus 3000 may include one or more of the following components: a processing component 3002, a memory 3004, and a communication component 3006.
  • the processing component 3002 may be used to control the overall operations of the device 3000, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 3002 may include one or more processors 3020 to execute instructions to complete all or part of the steps of the above connection release method.
  • processing component 3002 may include one or more modules that facilitate interaction between processing component 3002 and other components.
  • processing component 3002 may include a multimedia module to facilitate interaction between the multimedia component and processing component 3002.
  • Memory 3004 is configured to store various types of data to support operations at device 3000. Examples of such data include instructions for any application or method operating on device 3000, contact data, phonebook data, messages, pictures, videos, etc.
  • Memory 3004 may be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EEPROM), Programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EEPROM erasable programmable read-only memory
  • EPROM Programmable read-only memory
  • PROM programmable read-only memory
  • ROM read-only memory
  • magnetic memory flash memory, magnetic or optical disk.
  • Communication component 3006 is configured to facilitate wired or wireless communication between apparatus 3000 and other devices.
  • the device 3000 can access a wireless network based on communication standards, such as Wi-Fi, 2G, 3G, 4G, 5G, 6G, NB-IOT, eMTC, etc., or a combination thereof.
  • the communication component 3006 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 3006 also includes a near field communication (NFC) module to facilitate short-range communications.
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • apparatus 3000 may be configured by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable Gate array (FPGA), controller, microcontroller, microprocessor or other electronic components are implemented for executing the above connection release method.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable Gate array
  • controller microcontroller, microprocessor or other electronic components are implemented for executing the above connection release method.
  • the above-mentioned device 3000 can be an independent electronic device or a part of an independent electronic device.
  • the electronic device can be an integrated circuit (Integrated Circuit, IC) or a chip, where the integrated circuit can be an IC can also be a collection of multiple ICs; the chip can include but is not limited to the following types: GPU (Graphics Processing Unit, graphics processor), CPU (Central Processing Unit, central processing unit), FPGA (Field Programmable Gate Array, Programmable logic array), DSP (Digital Signal Processor, digital signal processor), ASIC (Application Specific Integrated Circuit, application specific integrated circuit), SOC (System on Chip, SoC, system on a chip or system-level chip), etc.
  • GPU Graphics Processing Unit, graphics processor
  • CPU Central Processing Unit, central processing unit
  • FPGA Field Programmable Gate Array, Programmable logic array
  • DSP Digital Signal Processor, digital signal processor
  • ASIC Application Specific Integrated Circuit
  • SOC System on Chip, SoC, system on a chip or system-level chip
  • the above integrated circuit or chip can be used to execute executable instructions (or codes) to implement the above connection release method.
  • the executable instructions can be stored in the integrated circuit or chip, or can be obtained from other devices or devices.
  • the integrated circuit or chip includes a processor, a memory, and an interface for communicating with other devices.
  • the executable instruction can be stored in the processor, and when the executable instruction is executed by the processor, the above connection release method is implemented; or, the integrated circuit or chip can receive the executable instruction through the interface and transmit it to the processor for execution. , to implement the above connection release method.
  • the present disclosure also provides a computer-readable storage medium on which computer program instructions are stored.
  • the computer-readable storage medium may be a non-transitory computer-readable storage medium including instructions, for example, may be the above-mentioned memory 3004 including instructions, and the above-mentioned instructions may be executed by the processor 3020 of the device 3000 to complete the above-mentioned connection. Release method.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
  • a computer program product comprising a computer program executable by a programmable device, the computer program having a function for performing the above when executed by the programmable device.
  • the code portion of the connection release method is also provided, the computer program product comprising a computer program executable by a programmable device, the computer program having a function for performing the above when executed by the programmable device.

Landscapes

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

Abstract

本公开涉及一种连接释放方法、装置、存储介质及芯片。该方法包括：第一终端可以响应于触发连接释放事件，释放第一终端通过中继终端与第二终端建立的第一直连链路sidelink连接；其中，该连接释放事件用于指示释放第一终端与中继终端的第二sidelink连接。这样，在第一终端确定释放与中继终端之间的第二sidelink连接的情况下，可以释放与第二终端之间的第一sidelink连接，从而可以及时释放无法继续通信的第一sidelink连接，减少第一终端的资源占用。

Description

连接释放方法、装置、存储介质及芯片 技术领域
本公开涉及通信技术领域，具体地，涉及一种连接释放方法、装置、存储介质及芯片。
背景技术
随着无线通信技术的发展，为了实现终端与终端之间的直接通信，3GPP(3rd Generation Partnership Project，第三代合作伙伴项目)定义了sidelink(可以称为直连链路或旁链路)通信方式。示例地，sidelink通信的一个典型应用场景即车联网(Vehicle-to-Everything，V2X)。在车联网中，每辆车可以作为一个终端，终端与终端之间可以通过直连链路sidelink进行通信，例如通过直连方式进行信息传输，从而有效减少通信时延。
当进行sidelink通信的两个终端之间距离较远时，可以通过中继终端(例如Relay UE)进行通信，这种通信方式可以称为U2U中继通信，在U2U中继通信中，通过中继终端进行通信的两个终端可以称为远端终端或远端UE(remote UE)。在相关技术中，远端终端的sidelink连接会存在无法及时释放的问题，会占用终端的资源，影响数据传输效率。
发明内容
为克服相关技术中存在的上述问题，本公开提供一种连接释放方法、装置、存储介质及芯片。
根据本公开实施例的第一方面，提供一种连接释放方法，应用于第一终端，所述方法包括：
响应于触发连接释放事件，释放所述第一终端通过中继终端与第二终端建立的第一直连链路sidelink连接；所述连接释放事件用于指示释放所述第一终端与所述中继终端的第二sidelink连接。
在一些实施例中，所述方法还包括：
释放所述第一终端与所述中继终端之间的所述第二sidelink连接。
在一些实施例中，所述释放所述第一终端与所述中继终端之间的所述第二sidelink连接包括：
通过所述第一终端的接入层通知所述第一终端的高层释放所述第二sidelink连接。
在一些实施例中，所述释放所述第一终端通过中继终端与第二终端建立的第一直连链路sidelink连接包括：
通过所述第一终端的接入层向所述第一终端的高层传输第一释放参数；所述第一释放参数用于通知所述高层释放所述第一sidelink连接。
在一些实施例中，所述第一释放参数包括预设释放原因参数，所述预设释放原因参数用于指示所述第一终端与所述中继终端的第二sidelink连接中断。
在一些实施例中，所述连接释放事件包括：
所述接入层接收到所述高层的目标释放指示；所述目标释放指示用于指示所述接入层释放所述第二sidelink连接。
在一些实施例中，所述连接释放事件包括：
所述第一终端与所述中继终端的第二sidelink连接发生sidelink无线链路失败。
在一些实施例中，所述连接释放事件包括：
接收到所述中继终端发送的目标指示；所述目标指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接中断。
在一些实施例中，所述目标指示包括第一指示，所述第一指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接发生sidelink无线链路失败。
在一些实施例中，所述目标指示包括第二指示，所述第二指示用于指示所述中继终端与 所述第二终端之间的第三sidelink连接被释放。
在一些实施例中，所述第二终端为多个，所述连接释放事件包括：
接收到所述中继终端发送的目标指示，并且根据所述目标指示确定通过所述中继终端与所述第一终端保持sidelink连接的多个所述第二终端与所述中继终端的sidelink连接均中断。
根据本公开实施例的第二方面，提供一种连接释放方法，应用于中继终端，所述方法包括：
在确定所述中继终端与第二终端之间的第三直连链路sidelink连接中断的情况下，向第一终端发送目标指示，以便所述第一终端响应于接收到所述目标指示，释放所述第一终端通过中继终端与第二终端建立的第一直连链路sidelink连接，所述目标指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接中断。
在一些实施例中，所述目标指示包括第一指示，所述第一指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接发生sidelink无线链路失败。
在一些实施例中，所述目标指示包括第二指示，所述第二指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接被释放。
根据本公开实施例的第三方面，提供一种连接释放装置，应用于第一终端，所述装置包括：
第一释放模块，被配置为响应于触发连接释放事件，释放所述第一终端通过中继终端与第二终端建立的第一直连链路sidelink连接；所述连接释放事件用于指示释放所述第一终端与所述中继终端的第二sidelink连接。
在一些实施例中，所述装置还包括：
第二释放模块，被配置为释放所述第一终端与所述中继终端之间的所述第二sidelink连接。
在一些实施例中，所述第二释放模块，被配置为通过所述第一终端的接入层通知所述第一终端的高层释放所述第二sidelink连接。
在一些实施例中，所述第一释放模块，被配置为通过所述第一终端的接入层向所述第一终端的高层传输第一释放参数；所述第一释放参数用于通知所述高层释放所述第一sidelink连接。
在一些实施例中，所述第一释放参数包括预设释放原因参数，所述预设释放原因参数用于指示所述第一终端与所述中继终端的第二sidelink连接中断。
在一些实施例中，所述连接释放事件包括：
所述接入层接收到所述高层的目标释放指示；所述目标释放指示用于指示所述接入层释放所述第二sidelink连接。
在一些实施例中，所述连接释放事件包括：
所述第一终端与所述中继终端的第二sidelink连接发生sidelink无线链路失败。
在一些实施例中，所述连接释放事件包括：
接收到所述中继终端发送的目标指示；所述目标指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接中断。
在一些实施例中，所述目标指示包括第一指示，所述第一指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接发生sidelink无线链路失败。
在一些实施例中，所述目标指示包括第二指示，所述第二指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接被释放。
在一些实施例中，所述第二终端为多个，所述连接释放事件包括：
接收到所述中继终端发送的目标指示，并且根据所述目标指示确定通过所述中继终端与所述第一终端保持sidelink连接的多个所述第二终端与所述中继终端的sidelink连接均中断。
根据本公开实施例的第四方面，提供一种连接释放装置，应用于中继终端，所述装置包括：
第一发送模块，被配置为在确定所述中继终端与第二终端之间的第三直连链路sidelink 连接中断的情况下，向第一终端发送目标指示，以便所述第一终端响应于接收到所述目标指示，释放所述第一终端通过中继终端与第二终端建立的第一直连链路sidelink连接，所述目标指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接中断。
在一些实施例中，所述目标指示包括第一指示，所述第一指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接发生sidelink无线链路失败。
在一些实施例中，所述目标指示包括第二指示，所述第二指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接被释放。
根据本公开实施例的第五方面，提供一种连接释放装置，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为执行本公开第一方面所提供的连接释放方法的步骤。
根据本公开实施例的第六方面，提供一种连接释放装置，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为执行本公开第二方面所提供的连接释放方法的步骤。
根据本公开实施例的第七方面，提供一种计算机可读存储介质，其上存储有计算机程序指令，该计算机程序指令被处理器执行时实现本公开第一方面所提供的连接释放方法的步骤。
根据本公开实施例的第八方面，提供一种计算机可读存储介质，其上存储有计算机程序指令，该计算机程序指令被处理器执行时实现本公开第二方面所提供的连接释放方法的步骤。
根据本公开实施例的第九方面，提供一种芯片，包括：处理器和接口；所述处理器用于读取指令以执行本公开第一方面所提供的连接释放方法的步骤，
根据本公开实施例的第十方面，提供一种芯片，包括：处理器和接口；所述处理器用于读取指令以执行本公开第二方面所提供的连接释放方法的步骤。
本公开的实施例提供的技术方案可以包括以下有益效果：第一终端可以响应于触发连接释放事件，释放第一终端通过中继终端与第二终端建立的第一直连链路sidelink连接；其中，该连接释放事件用于指示释放第一终端与中继终端的第二sidelink连接。这样，在第一终端确定释放与中继终端之间的第二sidelink连接的情况下，可以释放与第二终端之间的第一sidelink连接，从而可以及时释放无法继续通信的第一sidelink连接，减少第一终端的资源占用，并且第一终端基于业务需求可以更加快速的与第二终端建立新的连接，无需再等待原有连接释放，从而可以避免数据传输延迟的问题，提高数据传输效率。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种通信系统的示意图。
图2是根据一示例性实施例示出的一种连接释放方法的流程图。
图3是根据一示例性实施例示出的一种连接释放方法的流程图。
图4是根据一示例性实施例示出的一种连接释放方法的流程图。
图5是根据一示例性实施例示出的一种连接释放方法的流程图。
图6是根据一示例性实施例示出的一种连接释放装置的框图。
图7是根据一示例性实施例示出的一种连接释放装置的框图。
图8是根据一示例性实施例示出的一种连接释放装置的框图。
图9是根据一示例性实施例示出的一种连接释放装置的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
需要说明的是，本公开中所有获取信号、信息或数据的动作都是在遵照所在地国家相应的数据保护法规政策的前提下，并获得由相应装置所有者给予授权的情况下进行的。
在本公开的描述中，使用的术语如“第一”、“第二”等是用于区别类似的对象，而不必理解为特定的顺序或先后次序。另外，在未作相反说明的情况下，在参考附图的描述中，不同附图中的同一标记表示相同的要素。
在本公开的描述中，除非另有说明，“多个”是指两个或多于两个，其它量词与之类似；“至少一项(个)”、“一项(个)或多项(个)”或其类似表达，是指的这些项(个)中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，至少一项(个)a，可以表示任意数目个a；再例如，a，b和c中的一项(个)或多项(个)，可以表示：a，b，c，a-b，a-c，b-c，或a-b-c，其中a，b，c可以是单个，也可以是多个；“和/或”是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况，其中A，B可以是单数或者复数。
在本公开实施例中尽管在附图中以特定的顺序描述操作或步骤，但是不应将其理解为要求按照所示的特定顺序或是串行顺序来执行这些操作或步骤，或是要求执行全部所示的操作或步骤以得到期望的结果。在本公开的实施例中，可以串行执行这些操作或步骤；也可以并行执行这些操作或步骤；也可以执行这些操作或步骤中的一部分。
下面首先介绍本公开实施例的实施环境。
本公开实施例的技术方案可以应用于各种通信系统。该通信系统可以包括4G(the 4th Generation，第四代)通信系统、5G(the 5th Generation，第五代)通信系统、和其他未来的无线通信系统(比如6G)中的一种或多种。该通信系统也可以包括陆上公用移动通信网(Public Land Mobile Network，PLMN)网络、设备到设备(Device-to-Device，D2D)通信系统、机器到机器(Machine to Machine，M2M)通信系统、物联网(Internet of Things，IoT)通信系统、车联网(Vehicle-to-Everything，V2X)通信系统或者其他通信系统中的一种或多种。
图1是根据一示例性实施例示出的一种通信系统的示意图，如图1所示，该通信系统可以包括终端设备150和网络设备160。该通信系统可以用于支持4G网络接入技术，例如长期演进(Long Term Evolution，LTE)接入技术，或者，5G网络接入技术，如新型无线入技术(New Radio Access Technology，New RAT)，或者，其他未来的无线通信技术。需要说明的是，在该通信系统中，网络设备与终端设备的数量均可以为一个或多个，图1所示通信系统的网络设备与终端设备的数量仅为适应性举例，本公开对此不做限定。
图1中的网络设备可用于支持终端接入，例如，该网络设备可以是LTE中的演进型基站(evolutional Node B，eNB或eNodeB)；该网络设备也可以是5G网络中的下一代基站(the next Generation Node B，gNB或gNodeB)；该网络设备也可以是5G网络中的无线接入网(NG Radio Access Network，NG-RAN)设备；该网络设备也可以是未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)中的基站、宽带网络业务网关(Broadband Network Gateway，BNG)、汇聚交换机或非3GPP(3rd Generation Partnership Project，第三代合作伙伴项目)接入设备等。可选地，本公开实施例中的网络设备可以包括各种形式的基站，例如：宏基站、微基站(也称为小站)、中继站、接入点、5G基站或未来的基站、卫星、传输点(Transmitting and Receiving Point，TRP)、发射点(Transmitting Point，TP)、移动交换中心以及设备到设备(Device-to-Device，D2D)、机器到机器(Machine-to-Machine，M2M)、物联网(Internet of Things，IoT)、车联网(Vehicle-to-Everything，V2X)或其他通信中承担基站功能的设备等，本公开实施例对此不作具体限定。为方便描述，本公开所有实施例中，为终端设备提供无线 通信功能的装置统称为网络设备或基站。
图1中的终端设备可以是一种提供语音或者数据连通性的电子设备，例如，该终端设备也可以称为用户设备(User Equipment，UE)，用户单元(Subscriber Unit)，移动台(Mobile Station)，站台(Station)，终端(Terminal)等。示例地，该终端设备可以包括智能手机、智能可穿戴设备、智能音箱、智能平板、无线调制解调器(modem)、无线本地环路(Wireless Local Loop，WLL)台、PDA(Personal Digital Assistant，个人数字助理)、CPE(Customer Premise Equipment，客户终端设备)等。随着无线通信技术的发展，可以接入通信系统、可以与通信系统的网络设备进行通信、可以通过通信系统与其它物体进行通信的设备、或者、两个或多个设备之间可以直接通信的设备都可以是本公开实施例中的终端设备；例如，智能交通中的终端和汽车、智能家居中的家用设备、智能电网中的电力抄表仪器、电压监测仪器、环境监测仪器、智能安全网络中的视频监测仪器、收款机等。在本公开实施例中，终端设备可以与网络设备进行通信。多个终端设备之间也可以进行通信。终端设备可以是静态固定的，也可以是移动的，本公开对此不作限定。
在一些实施例中，如图1所示，终端设备150可以包括第一终端151、第二终端152和中继终端153，其中，第一终端151和第二终端152可以不直接链接，而是通过中继终端153进行通信，该中继终端153可以为第一终端151和第二终端152的通信提供中继功能，例如对通信数据转发数据，该通信方式可以称为U2U(UE to UE，终端到终端)中继通信，其中，第一终端和第二终端可以称为远端终端或远端UE(remote UE)。在U2U中继通信中，多个终端之间的通信方式可以包括单播、多播或广播中的任意一种或多种。例如，第一终端可以通过单播的方式将sidelink数据发送至中继终端，然后中继终端同样可以以单播的方式将该sidelink数据转发至第二终端，此时，该第一终端可以称为Source remote UE，该中继终端可以称为relay UE，该第二终端可以称为Target remote UE。再例如，第二终端可以通过单播的方式将sidelink数据发送至中继终端，然后中继终端同样可以以单播的方式将该sidelink数据转发至第一终端，此时，该第二终端可以称为Source remote UE，该中继终端可以称为relay UE，该第一终端可以称为Target remote UE。
需要说明的是，第一终端通过中继终端与第二终端保持单播连接时可以称为sidelink间接链路，第一终端直接与第二终端保持单播连接时可以称为sidelink直接链路。
在本实施例中，第一终端可以与网络设备连接，也可以不直接与网络设备连接，而是通过中继终端153或者其他提供中继功能的终端与网络设备连接；同样地，第二终端可以与网络设备连接，也可以不直接与网络设备连接，而是通过中继终端153或者其他提供中继功能的终端与网络设备连接，本公开对此不作限制。
还需要说明的是，对于一个物理终端设备，在提供中继功能的情况下，该物理终端设备可以作为中继终端；在通过其他中继终端与其他终端进行数据通信时，该物理终端设备可以作为上述第一终端或第二终端。也就是说，同一个物理终端设备既可以作为一条U2U链路中的中继终端，也可以作为另一条U2U链路中的第一终端(例如数据发送端)，还可以作为另外一条U2U链路中的第二终端(例如数据接收端)。当然，一个物理终端设备也可以只提供中继功能(也就是只作为上述中继终端)，或者只提供普通的sidelink通信功能(也就是只作为上述第一终端或第二终端)，本公开对此也不作限制。
在一些实施例中，为了实现U2U通信，第一终端可以建立两个连接，包括：第一终端通过中继终端与第二终端建立的第一直连链路sidelink连接，以及，第一终端与中继终端之间的第二sidelink连接。其中，上述sidelink连接可以是通过PC5接口建立的PC5-RRC(Radio Resource Control，无线资源控制)连接，在该sidelink连接为单播连接的情况下，若该单播连接发生以下RLF(Radio Link Failure，无线链路失败)事件中的一个或多个，则可以触发sidelink无线链路失败：
RLF事件一、sidelink RLC实体向目标终端的发送达到最大重传次数。
例如，RRC收到sidelink RLC实体通知，确定该sidelink RLC实体向目标终端的发送达 到最大重传次数，该目标终端可以是该sidelink连接的对端终端，例如第二终端或中继终端。
RLF事件二、T400定时器超时。
该T400定时器可以是第一终端在传输RRCReconfigurationSidelink之后启动，该T400定时器的时长可以是预设时长。
RLF事件三、目标终端的反馈连续丢失次数达到最大值。
例如，RRC接收到sidelink MAC(Medium Access Control，媒体接入控制)实体通知，目标终端的反馈连续丢失次数达到最大值，该反馈连续丢失次数可以是连续HARQ DTX次数，同样地，该目标终端可以是该sidelink连接的对端终端，例如第二终端或中继终端。
RLF事件四、sidelink信令承载的完整性检测失败。
其中，该sidelink信令承载可以包括SL-SRB2和/或SL-SRB3。例如，该RLF事件四可以包括RRC接收到sidelink PDCP(Packet Data Convergence Protocol，分组数据汇聚协议)实体通知，SL-SRB2或者SL-SRB3的完整性检测失败。
在触发sidelink无线链路失败后，第一终端可以释放发生sidelink无线链路失败的sidelink连接。
在相关技术中，若第一终端与中继终端之间的sidelink连接被释放，则第一终端无法通过中继终端继续与第二终端进行通信，但是第一终端与第二终端之间的sidelink连接未主动释放，仍然继续保持，这样会占用第一终端的资源，而且会导致第一终端无法与第二终端建立新的连接，导致数据传输延迟。
为了解决上述问题，本公开提供了一种连接释放方法、装置、存储介质及芯片。
图2是根据一示例性实施例示出的一种连接释放方法。该方法可以应用于上述通信系统中的第一终端。如图2所示，该方法可以包括：
S201、第一终端响应于触发连接释放事件，释放第一终端通过中继终端与第二终端建立的第一直连链路sidelink连接。
其中，该连接释放事件用于指示释放第一终端与中继终端的第二sidelink连接。
示例地，第一终端与第二终端可以通过中继终端进行U2U通信，为了进行U2U通信，第一终端可以与中继终端建立第二sidelink连接，并且通过中继终端与第二终端建立第一sidelink连接。这样，在触发指示释放第二sidelink连接的连接释放事件的情况下，可以释放该第一sidelink连接，从而可以避免由于第二sidelink连接被释放后，第一终端一直保持无效的第一sidelink连接而导致资源浪费。
需要说明的是，上述第一sidelink连接和第二sidelink连接均可以是PC5-RRC连接。
在一些实施例中，第一终端响应于触发连接释放事件，可以首先确定第一终端通过中继终端与第二终端建立的第一直连链路sidelink连接，然后释放该第一sidelink连接。
在一些实施例中，上述第二终端可以为一个或多个，示例地，第一终端可以通过同一个中继终端与多个第二终端进行U2U通信，这样，第一终端可以响应于触发连接释放事件，确定第一终端通过中继终端与多个第二终端建立的多个第一sidelink连接，并释放该第一sidelink连接。也就是说，第一终端在确定释放第一终端与中继终端的第二sidelink连接的情况下，可以将通过该中继终端的多个第一sidelink连接均释放。
采用上述方法，第一终端可以响应于触发连接释放事件，释放第一终端通过中继终端与第二终端建立的第一直连链路sidelink连接；其中，该连接释放事件用于指示释放第一终端与中继终端的第二sidelink连接。这样，在第一终端确定释放与中继终端之间的第二sidelink连接的情况下，可以释放与第二终端之间的第一sidelink连接，从而可以及时释放无法继续通信的第一sidelink连接，减少第一终端的资源占用，并且第一终端基于业务需求可以更加快速的与第二终端建立新的连接，无需再等待原有连接释放，从而可以避免数据传输延迟的问题，提高数据传输效率。
图3是根据一示例性实施例示出的另一种连接释放方法。如图3所示，该方法可以包括：
S301、第一终端触发连接释放事件。
其中，该连接释放事件用于指示释放第一终端与中继终端的第二sidelink连接。
示例地，第一终端可以在连接释放事件发生时，触发连接释放事件。例如，可以在接收到释放第二sidlelink连接的指示时，触发连接释放事件。
S302、第一终端释放第一终端通过中继终端与第二终端建立的第一sidelink连接。
在一些实施例中，第一终端响应于触发连接释放事件，可以首先确定第一终端通过中继终端与第二终端建立的第一sidelink连接，然后释放该第一sidelink连接。
在一些实施例中，第一终端可以首先向第二终端发送第一连接释放请求消息(Disconnect Request)，在接收到第二终端响应于该第一连接释放请求而发送的第一连接释放响应消息(Disconnect Response)的情况下，可以释放第一sidelink连接相关的资源。
在另一些实施例中，第一终端可以首先向第二终端发送第一连接释放请求消息，在预设时间内未接收到第二终端响应于该第一连接释放请求而发送的第一连接释放响应消息的情况下，也可以释放第一sidelink连接相关的资源。
在另外一些实施例中，第一终端可以直接释放第一sidelink连接相关的资源。
S303、第一终端释放第一终端与中继终端之间的第二sidelink连接。
在一些实施例中，第一终端可以首先向中继终端发送第二连接释放请求消息(Disconnect Request)，在接收到中继终端响应于该第二连接释放请求而发送的第二连接释放响应消息(Disconnect Response)的情况下，可以释放该第二sidelink连接相关的资源。
在另一些实施例中，第一终端可以首先向中继终端发送第二连接释放请求消息，在预设时间内未接收到中继终端响应于该第二连接释放请求而发送的第二连接释放响应消息的情况下，也可以释放该第二sidelink连接相关的资源。
在另外一些实施例中，第一终端可以直接释放该第二sidelink连接相关的资源。
这样，第一终端可以将第一sidelink连接和第二sidelink连接均释放，避免资源浪费。
在本公开的实施例中，上述S302步骤和S303步骤可以按照任意顺序执行，示例地：
在一些实施例中，第一终端可以先执行释放第一sidelink连接的步骤，然后再执行释放第二sidelink连接的步骤。
在另一些实施例中，第一终端可以先执行释放第二sidelink连接的步骤，然后再执行释放第一sidelink连接的步骤。
在另外一些实施例中，第一终端可以同时执行释放第一sidelink连接和释放第二sidelink连接的步骤。
例如，第一终端的接入层可以通知高层同时释放第一sidelink连接和第二sidelink连接。
在又一些实施例中，第一终端可以先执行释放第一sidelink连接的步骤，在确定第一sidelink连接被释放的情况下，再执行释放第二sidelink连接的步骤。
需要说明的是，由于第一sidelink连接是第一终端通过中继终端与第二终端建立的连接，需要依赖第二sidelink连接才能通信，先执行释放第一sidelink连接的步骤，此时还可以通过中继终端向第二终端发送第一连接释放请求消息，以便第二终端也释放与第一终端的sidelink连接，在确定第一sidelink连接被释放的情况下，再执行释放第二sidelink连接的步骤。例如，第一终端的接入层可以先通知高层释放第一sidelink连接，在确定第一sidelink连接被释放(例如接收到高层发送的第一释放成功指示)的情况下，再通知高层释放第二sidelink连接。
在本公开的一些实施方式中，第一终端可以包括接入层(access layer)和高层(upper layer，高层也可以称为非接入层)。
在上述S302步骤中，第一终端可以通过接入层通知高层(upper layer)释放该第一sidelink连接。
示例地，第一终端可以通过接入层向高层传输第一释放参数；该第一释放参数用于通知高层释放第一sidelink连接。高层响应于接收到该第一释放参数，释放第一sidelink连接，例如，高层可以向第二终端发送连接释放请求消息(Disconnect Request)，并释放该第一sidelink连接相关的资源。
其中，传输第一释放参数的方式可以有多种：例如，接入层可以向高层发送第一释放消息，并在该第一释放消息中携带第一释放参数。再例如，该第一释放参数可以为存储器中的预设参数，接入层可以将该第一释放参数的值设置为第一预设值，以便通知高层释放第一sidelink连接。
在一些实施例中，该第一释放参数可以包括预设释放原因参数，该预设释放原因参数用于指示第一终端与中继终端的第二sidelink连接中断。示例地，该预设释放原因参数可以为中继链路中断。
需要说明的是，该第二sidelink连接中断的含义可以包括：第二sidelink连接已经中断或者即将中断。例如，第一终端在释放第一sidelink连接之前，已经响应于触发上述连接释放事件，将第二sidelink连接释放，则可以确定该第二sidelink连接已经中断；反之，若第一终端在释放第一sidelink连接之前，虽然已经触发了上述连接释放事件，确定要将第二sidelink连接释放，但还未执行释放第一sidelink连接的步骤，则可以确定该第二sidelink连接即将中断，无论该第二sidelink连接已经中断，还是即将中断，均可以通过该预设释放原因参数指示该第二sidelink连接中断。
同样地，在上述S303步骤中，第一终端也可以通过接入层通知高层释放该第二sidelink连接。
这样，第一终端通过接入层和高层的配合，可以释放第一sidelink链路。
在本公开的一些实施例中，上述连接释放事件可以包括以下事件中的一项或多项：
连接释放事件一、第一终端的接入层接收到高层的目标释放指示。
其中，该目标释放指示可以用于指示接入层释放第二sidelink连接。
示例地，第一终端可以在接收到高层的目标释放指示的情况下，释放该第一sidelink连接。
例如，可以首先确定第一终端通过中继终端与第二终端建立的第一sidelink连接，然后释放该第一sidelink连接。
在一些实施例中，由于该目标释放指示是高层发送的，因此，第一终端的接入层可以无需再通知高层释放第二sidelink连接。
这样，第一终端可以基于高层的目标释放指示，释放该第一sidelink连接。
连接释放事件二、第一终端与中继终端的第二sidelink连接发生sidelink无线链路失败。
示例地，第一终端可以在确定第二sidelink连接发生sidelink无线链路失败的情况下，释放该第一sidelink连接。
同样地，可以首先确定第一终端通过中继终端与第二终端建立的第一sidelink连接，然后释放该第一sidelink连接。
在一些实施例中，在第二sidelink连接发生预设RLF事件的情况下，可以确定该第二sidelink连接发生sidelink无线链路失败。该预设RLF事件可以包括本公开前述RLF事件一至四中的任意一项或多项，此处不再赘述。
连接释放事件三、接收到中继终端发送的目标指示。
其中，该目标指示可以用于指示中继终端与第二终端之间的第三sidelink连接中断。
示例地，第一终端可以在接收到中继终端发送的目标指示的情况下，释放该第一sidelink连接。
同样地，可以首先确定第一终端通过中继终端与第二终端建立的第一sidelink连接，然后释放该第一sidelink连接。
在一些实施例中，中继终端可以在确定中继终端与第二终端之间的第三直连链路sidelink连接中断的情况下，向第一终端发送该目标指示。
连接释放事件四、接收到中继终端发送的目标指示，并且根据该目标指示确定通过中继终端与第一终端保持sidelink连接的多个第二终端与中继终端的sidelink连接均中断。
同样地，该目标指示可以用于指示中继终端与第二终端之间的第三sidelink连接中断。
示例地，通过中继终端与第一终端保持sidelink连接的第二终端可以为多个，第一终端可 以在接收到中继终端发送的目标指示，并且根据该目标指示确定通过中继终端与第一终端保持sidelink连接的多个第二终端与中继终端的sidelink连接均中断的情况下，确定第一终端通过中继终端与第二终端建立的第一sidelink连接，并释放该第一sidelink连接。
在一些实施例中，第一终端可以通过中继终端与N个第二终端保持sidelink连接(N为大于或等于1的正整数)，上述目标指示中可以用于指示中继终端与其中一个或多个第二终端的第三sidelink连接中断。
若第一终端根据收到的目标指示确定上述N个第二终端的第三sidelink连接均中断，则触发连接释放事件(也就是确定要释放第二sidelink连接)，此时可以释放N个第一sidelink连接，并释放第一终端与中继终端之间的第二sidelink连接。
若第一终端根据目标指示确定M个第二终端与中继终端第三sidelink连接中断，其中M小于N，则可以继续保持第一终端与中继终端之间的第二sidelink连接，只释放第一终端与目标指示中指示的M个第二终端的第一sidelink连接即可。
这样，在第一终端通过中继终端与多个第二终端建立sidelink连接的情况下，可以实现对sidelink连接的可靠管理，及时释放无效的sidelink连接。
需要说明的是，上述第三sidelink连接中断的含义可以包括：第三sidelink连接已经中断或者即将中断。例如，中继终端可以在执行释放第三sidelink连接之后，发送上述目标指示，则该目标指示用于指示第三sidelink连接已经中断；再例如，中继终端可以在确定要释放第三sidelink连接但是还未执行释放步骤的情况下，向第一终端发送上述目标指示，则该目标指示用于指示第三sidelink连接即将中断。
在一些实施例中，上述目标指示可以包括第一指示，该第一指示用于指示中继终端与第二终端之间的第三sidelink连接发生sidelink无线链路失败。
示例地，中继终端在第三sidelink连接发生预设RLF事件的情况下，可以确定该第三sidelink连接发生sidelink无线链路失败。该预设RLF事件可以包括本公开前述RLF事件一至四中的任意一项或多项，此处不再赘述。
在另一些实施例中，上述目标指示可以包括第二指示，该第二指示用于指示中继终端与第二终端之间的第三sidelink连接被释放。
示例地，中继终端可以主动释放第二sidelink连接，或者，基于第二终端的请求释放第三sidelink连接，或者，基于网络设备的指示释放第三sidelink连接，或者，基于用户触发的指令释放第三sidelink连接，本公开对于中继终端触发第三sidelink连接释放的方式不作限定。
同样需要说明的是，上述第三sidelink连接被释放的含义可以包括：第三sidelink连接已经被释放或者即将被释放。例如，中继终端可以在执行释放第三sidelink连接之后，发送上述第二指示，则该第二指示用于指示第三sidelink连接已经被释放；再例如，中继终端可以在确定要释放第三sidelink连接但是还未执行释放步骤的情况下，向第一终端发送上述目标指示，则该目标指示用于指示第三sidelink连接即将被释放。
应当理解目标指示中可以只包括第一指示，也可以只包括第二指示，或者可以同时包括第一指示和第二指示，本公开对此不作限制。
这样，在不同的场景下，第一终端可以基于中继终端的不同的指示，及时释放第一sidelink连接。
图4是根据一示例性实施例示出的一种连接释放方法。该方法可以应用于上述通信系统中的中继终端。如图4所示，该方法可以包括：
S401、中继终端在确定与第二终端之间的第三直连链路sidelink连接中断的情况下，向第一终端发送目标指示。
其中，该第三sidelink连接为中继终端与第二终端之间的sidelink连接。
这样，第一终端可以响应于接收到该目标指示，释放第一sidelink连接，该目标指示可以用于指示中继终端与第二终端之间的第三sidelink连接中断。
需要说明的是，第一终端释放第一sidelink连接的方式可以参考本公开前述实施例的说明， 此处不再赘述。
上述目标指示可以包括第一指示和/或第二指示，示例地：
在一些实施例中，上述目标指示可以包括第一指示，该第一指示可以用于指示中继终端与第二终端之间的第三sidelink连接发生sidelink无线链路失败。
例如，中继终端在第三sidelink连接发生预设RLF事件的情况下，可以确定该第三sidelink连接发生sidelink无线链路失败。该预设RLF事件可以包括本公开前述RLF事件一至事件四中的任意一项或多项，此处不再赘述。
在另一些实施例中，上述目标指示可以包括第二指示，该第二指示可以用于指示中继终端与第二终端之间的第三sidelink连接被释放。
例如，中继终端可以主动释放第二sidelink连接，或者，基于第二终端的请求释放第三sidelink连接，或者，基于网络设备的指示释放第三sidelink连接，或者，基于用户触发的指令释放第三sidelink连接，本公开对于中继终端触发第三sidelink连接释放的方式不作限定。
同样需要说明的是，上述第三sidelink连接被释放的含义可以包括：第三sidelink连接已经被释放或者即将被释放。例如，中继终端可以在执行释放第三sidelink连接之后，发送上述第二指示，则该第二指示用于指示第三sidelink连接已经被释放；再例如，中继终端可以在确定要释放第三sidelink连接但是还未执行释放步骤的情况下，向第一终端发送上述目标指示，则该目标指示用于指示第三sidelink连接即将被释放。
图5是根据一示例性实施例示出的一种连接释放方法。如图5所示，该方法可以包括：
S501、中继终端在确定与第二终端之间的第三直连链路sidelink连接中断的情况下，向第一终端发送目标指示。
其中，该第三sidelink连接为中继终端与第二终端之间的sidelink连接，该目标指示可以用于指示该第三sidelink连接中断。
S502、第一终端响应于接收到该目标指示，释放第一sidelink连接。
其中，该第一sidelink连接为第一终端与第二终端之间的sidelink连接。
示例地，第一终端可以在接收到中继终端发送的目标指示的情况下，确定第一终端通过中继终端与第二终端建立的第一sidelink连接，并释放该第一sidelink连接。
上述目标指示可以包括第一指示和/或第二指示，示例地：
在一些实施例中，中继终端可以在确定该第三sidelink连接发生sidelink无线链路失败的情况下，向第一终端发送第一指示；第一终端可以响应于接收到该第一指示，释放第一sidelink连接。其中，该第一指示可以用于指示中继终端与第二终端之间的第三sidelink连接发生sidelink无线链路失败。
在另一些实施例中，中继终端可以在确定第三sidelink连接被释放的情况下，向第一终端发送第二指示；第一终端可以响应于接收到该第二指示，释放第一sidelink连接。其中，该第二指示用于指示中继终端与第二终端之间的第三sidelink连接被释放。
在本实施例的另一种实现方式中，第一终端可以响应于接收到该目标指示，释放第一sidelink连接和第二sidelink连接，其中，第二sidelink连接为第一终端与中继终端之间的sidelink连接。
需要说明的是，第一终端释放第一sidelink连接和释放第二sidelink连接的具体方式可以参考本公开前述实施例中的描述，此处不再赘述。
采用上述方法，中继终端可以在确定与第二终端之间的第三直连链路sidelink连接中断的情况下，向第一终端发送目标指示，第一终端可以响应于接收到该目标指示，释放第一sidelink连接。这样，第一终端可以及时释放无法继续通信的第一sidelink连接，减少第一终端的资源占用，并且第一终端基于业务需求可以更加快速的与第二终端建立新的连接，无需再等待原有连接释放，从而可以避免数据传输延迟的问题，提高数据传输效率。
图6是根据一示例性实施例示出的一种连接释放装置2100的框图。该装置可以应用于第一终端。如图6所示，该装置2100可以包括：
第一释放模块2101，被配置为响应于触发连接释放事件，释放所述第一终端通过中继终端与第二终端建立的第一直连链路sidelink连接；所述连接释放事件用于指示释放所述第一终端与所述中继终端的第二sidelink连接。
图7是根据一示例性实施例示出的一种连接释放装置2100的框图。如图7所示，该装置2100还可以包括：
第二释放模块2102，被配置为释放所述第一终端与所述中继终端之间的所述第二sidelink连接。
在一些实施例中，所述第二释放模块2102，被配置为通过所述第一终端的接入层通知所述第一终端的高层释放所述第二sidelink连接。
在一些实施例中，所述第一释放模块2101，被配置为通过所述第一终端的接入层向所述第一终端的高层传输第一释放参数；所述第一释放参数用于通知所述高层释放所述第一sidelink连接。
在一些实施例中，所述第一释放参数包括预设释放原因参数，所述预设释放原因参数用于指示所述第一终端与所述中继终端的第二sidelink连接中断。
在一些实施例中，所述连接释放事件包括：
所述接入层接收到所述高层的目标释放指示；所述目标释放指示用于指示所述接入层释放所述第二sidelink连接。
在一些实施例中，所述连接释放事件包括：
所述第一终端与所述中继终端的第二sidelink连接发生sidelink无线链路失败。
在一些实施例中，所述连接释放事件包括：
接收到所述中继终端发送的目标指示；所述目标指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接中断。
在一些实施例中，所述目标指示包括第一指示，所述第一指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接发生sidelink无线链路失败。
在一些实施例中，所述目标指示包括第二指示，所述第二指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接被释放。
在一些实施例中，所述第二终端为多个，所述连接释放事件包括：
接收到所述中继终端发送的目标指示，并且根据所述目标指示确定通过所述中继终端与所述第一终端保持sidelink连接的多个所述第二终端与所述中继终端的sidelink连接均中断。
图8是根据一示例性实施例示出的一种连接释放装置2200的框图。该装置可以应用于中继终端。如图8所示，该装置2200可以包括：
第一发送模块2201，被配置为在确定所述中继终端与第二终端之间的第三直连链路sidelink连接中断的情况下，向第一终端发送目标指示，以便所述第一终端响应于接收到所述目标指示，释放所述第一终端通过中继终端与第二终端建立的第一直连链路sidelink连接，所述目标指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接中断。
在一些实施例中，所述目标指示包括第一指示，所述第一指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接发生sidelink无线链路失败。
在一些实施例中，所述目标指示包括第二指示，所述第二指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接被释放。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
图9是根据一示例性实施例示出的一种连接释放装置的框图。该连接释放装置3000可以是图1所示通信系统中的终端设备(例如第一终端、第二终端或中继终端)，也可以是该通信系统中的网络设备。
参照图9，该装置3000可以包括以下一个或多个组件：处理组件3002，存储器3004，以及通信组件3006。
处理组件3002可以用于控制该装置3000的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件3002可以包括一个或多个处理器3020来执行指令，以完成上述的连接释放方法的全部或部分步骤。此外，处理组件3002可以包括一个或多个模块，便于处理组件3002和其他组件之间的交互。例如，处理组件3002可以包括多媒体模块，以方便多媒体组件和处理组件3002之间的交互。
存储器3004被配置为存储各种类型的数据以支持在装置3000的操作。这些数据的示例包括用于在装置3000上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器3004可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
通信组件3006被配置为便于装置3000和其他设备之间有线或无线方式的通信。装置3000可以接入基于通信标准的无线网络，例如Wi-Fi，2G、3G、4G、5G、6G、NB-IOT、eMTC等，或它们的组合。在一个示例性实施例中，通信组件3006经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件3006还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置3000可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述连接释放方法。
上述装置3000可以是独立的电子设备，也可以是独立电子设备的一部分，例如在一种实施例中，该电子设备可以是集成电路(Integrated Circuit，IC)或芯片，其中该集成电路可以是一个IC，也可以是多个IC的集合；该芯片可以包括但不限于以下种类：GPU(Graphics Processing Unit，图形处理器)、CPU(Central Processing Unit，中央处理器)、FPGA(Field Programmable Gate Array，可编程逻辑阵列)、DSP(Digital Signal Processor，数字信号处理器)、ASIC(Application Specific Integrated Circuit，专用集成电路)、SOC(System on Chip，SoC，片上系统或系统级芯片)等。上述的集成电路或芯片中可以用于执行可执行指令(或代码)，以实现上述连接释放方法。其中该可执行指令可以存储在该集成电路或芯片中，也可以从其他的装置或设备获取，例如该集成电路或芯片中包括处理器、存储器，以及用于与其他的装置通信的接口。该可执行指令可以存储于该处理器中，当该可执行指令被处理器执行时实现上述连接释放方法；或者，该集成电路或芯片可以通过该接口接收可执行指令并传输给该处理器执行，以实现上述连接释放方法。
在示例性实施例中，本公开还提供了一种计算机可读存储介质，其上存储有计算机程序指令，该程序指令被处理器执行时实现本公开提供的连接释放方法的步骤。示例地，该计算机可读存储介质可以是一种包括指令的非临时性计算机可读存储介质，例如，可以是包括指令的上述存储器3004，上述指令可由装置3000的处理器3020执行以完成上述连接释放方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
在另一示例性实施例中，还提供一种计算机程序产品，该计算机程序产品包含能够由可编程的装置执行的计算机程序，该计算机程序具有当由该可编程的装置执行时用于执行上述连接释放方法的代码部分。
本领域技术人员在考虑说明书及实践本公开后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (19)

  1. 一种连接释放方法，其特征在于，应用于第一终端，所述方法包括：
    响应于触发连接释放事件，释放所述第一终端通过中继终端与第二终端建立的第一直连链路sidelink连接；所述连接释放事件用于指示释放所述第一终端与所述中继终端的第二sidelink连接。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    释放所述第一终端与所述中继终端之间的所述第二sidelink连接。
  3. 根据权利要求2所述的方法，其特征在于，所述释放所述第一终端与所述中继终端之间的所述第二sidelink连接包括：
    通过所述第一终端的接入层通知所述第一终端的高层释放所述第二sidelink连接。
  4. 根据权利要求1所述的方法，其特征在于，所述释放所述第一终端通过中继终端与第二终端建立的第一直连链路sidelink连接包括：
    通过所述第一终端的接入层向所述第一终端的高层传输第一释放参数；所述第一释放参数用于通知所述高层释放所述第一sidelink连接。
  5. 根据权利要求4所述的方法，其特征在于，所述第一释放参数包括预设释放原因参数，所述预设释放原因参数用于指示所述第一终端与所述中继终端的第二sidelink连接中断。
  6. 根据权利要求4或5所述的方法，其特征在于，所述连接释放事件包括：
    所述接入层接收到所述高层的目标释放指示；所述目标释放指示用于指示所述接入层释放所述第二sidelink连接。
  7. 根据权利要求1至5中任一项所述的方法，其特征在于，所述连接释放事件包括：
    所述第一终端与所述中继终端的第二sidelink连接发生sidelink无线链路失败。
  8. 根据权利要求1至5中任一项所述的方法，其特征在于，所述连接释放事件包括：
    所述第一终端接收到所述中继终端发送的目标指示；所述目标指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接中断。
  9. 根据权利要求8所述的方法，其特征在于，所述目标指示包括第一指示，所述第一指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接发生sidelink无线链路失败。
  10. 根据权利要求8所述的方法，其特征在于，所述目标指示包括第二指示，所述第二指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接被释放。
  11. 根据权利要求8所述的方法，其特征在于，所述第二终端为多个，所述连接释放事件包括：
    所述第一终端接收到所述中继终端发送的目标指示，并且根据所述目标指示确定通过所述中继终端与所述第一终端保持sidelink连接的多个所述第二终端与所述中继终端的sidelink连接均中断。
  12. 一种连接释放方法，其特征在于，应用于中继终端，所述方法包括：
    在确定所述中继终端与第二终端之间的第三直连链路sidelink连接中断的情况下，向第一终端发送目标指示，以便所述第一终端响应于接收到所述目标指示，释放所述第一终端通过中继终端与第二终端建立的第一直连链路sidelink连接，所述目标指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接中断。
  13. 根据权利要求12所述的方法，其特征在于，所述目标指示包括第一指示，所述第一指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接发生sidelink无线链路失败。
  14. 根据权利要求12所述的方法，其特征在于，所述目标指示包括第二指示，所述第二指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接被释放。
  15. 一种连接释放装置，其特征在于，应用于第一终端，所述装置包括：
    第一释放模块，被配置为响应于触发连接释放事件，释放所述第一终端通过中继终端与第二终端建立的第一直连链路sidelink连接；所述连接释放事件用于指示释放所述第一终端与所述中继终端的第二sidelink连接。
  16. 一种连接释放装置，其特征在于，应用于中继终端，所述装置包括：
    第一发送模块，被配置为在确定所述中继终端与第二终端之间的第三直连链路sidelink连接中断的情况下，向第一终端发送目标指示，以便所述第一终端响应于接收到所述目标指示，释放所述第一终端通过中继终端与第二终端建立的第一直连链路sidelink连接，所述目标指示用于指示所述中继终端与所述第二终端之间的第三sidelink连接中断。
  17. 一种连接释放装置，其特征在于，所述装置包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为执行权利要求1至11中任一项所述方法的步骤，或者，所述处理器被配置为执行权利要求12至14中任一项所述方法的步骤。
  18. 一种计算机可读存储介质，其上存储有计算机程序指令，其特征在于，所述计算机程序指令被处理器执行时实现权利要求1至11中任一项所述方法的步骤，或者，所述计算机程序指令被处理器执行时实现权利要求12至14中任一项所述方法的步骤。
  19. 一种芯片，其特征在于，包括处理器和接口；所述处理器用于读取指令以执行权利要求1至11中任一项所述方法的步骤，或者，所述处理器用于读取指令以执行权利要求12至14中任一项所述方法的步骤。
PCT/CN2022/113163 2022-08-17 2022-08-17 连接释放方法、装置、存储介质及芯片 WO2024036540A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2022/113163 WO2024036540A1 (zh) 2022-08-17 2022-08-17 连接释放方法、装置、存储介质及芯片
CN202280003153.4A CN115669205A (zh) 2022-08-17 2022-08-17 连接释放方法、装置、存储介质及芯片

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/113163 WO2024036540A1 (zh) 2022-08-17 2022-08-17 连接释放方法、装置、存储介质及芯片

Publications (1)

Publication Number Publication Date
WO2024036540A1 true WO2024036540A1 (zh) 2024-02-22

Family

ID=85023179

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/113163 WO2024036540A1 (zh) 2022-08-17 2022-08-17 连接释放方法、装置、存储介质及芯片

Country Status (2)

Country Link
CN (1) CN115669205A (zh)
WO (1) WO2024036540A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170035786A (ko) * 2015-09-08 2017-03-31 아서스테크 컴퓨터 인코포레이션 무선 통신 시스템에서 중계 사용자 장비에 의해 무선 베어러 릴리즈를 트리거링하기 위한 방법 및 장치
CN111526501A (zh) * 2019-02-02 2020-08-11 电信科学技术研究院有限公司 一种链路释放信息传输方法、装置及设备
CN113366885A (zh) * 2021-05-07 2021-09-07 北京小米移动软件有限公司 一种释放远端终端设备的方法及其装置
CN113811025A (zh) * 2020-06-17 2021-12-17 华为技术有限公司 一种释放中继连接的方法、设备及系统
WO2022027440A1 (en) * 2020-08-06 2022-02-10 Lenovo (Beijing) Limited Methods and apparatuses for a failure handling procedure in a sidelink relay system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170035786A (ko) * 2015-09-08 2017-03-31 아서스테크 컴퓨터 인코포레이션 무선 통신 시스템에서 중계 사용자 장비에 의해 무선 베어러 릴리즈를 트리거링하기 위한 방법 및 장치
CN111526501A (zh) * 2019-02-02 2020-08-11 电信科学技术研究院有限公司 一种链路释放信息传输方法、装置及设备
CN113811025A (zh) * 2020-06-17 2021-12-17 华为技术有限公司 一种释放中继连接的方法、设备及系统
WO2022027440A1 (en) * 2020-08-06 2022-02-10 Lenovo (Beijing) Limited Methods and apparatuses for a failure handling procedure in a sidelink relay system
CN113366885A (zh) * 2021-05-07 2021-09-07 北京小米移动软件有限公司 一种释放远端终端设备的方法及其装置

Also Published As

Publication number Publication date
CN115669205A (zh) 2023-01-31

Similar Documents

Publication Publication Date Title
US9432899B2 (en) Communications system, user equipment, mobility management entity and method thereof of transient handover for performing packet offloading
TWI657707B (zh) 處理無線通訊系統中狀態不匹配的裝置及方法
US20190021130A1 (en) Method for changing connection mode and mobility management entity
CN111556517B (zh) 异常链路的处理方法及设备
WO2017193766A1 (zh) 一种下行数据传输的方法及设备
US20200267800A1 (en) Method for performing s1 connection release by mobility management object, mobility management object, method for performing s1 connection release by base station, and base station
CN115065988B (zh) 中继传输的方法、中继终端和远端终端
US20190045349A1 (en) Method for initiating tracking area update, and user equipment
WO2017199789A1 (ja) ユーザ装置、基地局及び信号送信方法
JP6825746B2 (ja) コアネットワークノードのための方法、ｕｅのための方法、コアネットワークノード、及びｕｅ
KR20160060091A (ko) 페이징 방법, 네트워크 디바이스 및 통신 시스템
WO2022022736A1 (zh) 接入控制方法及装置
WO2021108966A1 (zh) 无线链路失败的处理方法、装置及计算机存储介质
WO2018040109A1 (zh) 一种无线通信的方法和装置
WO2021189235A1 (zh) 一种数据传输方法及装置、通信设备
US20230156703A1 (en) DATA TRANSMISSION SCHEDULING METHOD AND DEVICE, AND STORAGE MEDIUM (as amended)
US20230071926A1 (en) Method and apparatus for transmitting information
US20230217464A1 (en) Service data transmission method and apparatus, terminal, and base station
WO2024065813A1 (zh) 波束应用方法、装置、存储介质及芯片
WO2024036540A1 (zh) 连接释放方法、装置、存储介质及芯片
WO2021249425A1 (zh) 一种通信方法及相关装置
US11627453B2 (en) Emergency communication over non-persistent peer-2-peer network
CN108464038A (zh) 电路域回落的方法、基站、移动管理实体和终端
WO2023092485A1 (en) Service continuity of sidelink relay communication
WO2023130348A1 (zh) 中继选择或重选方法、装置和系统

Legal Events

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

Ref document number: 22955321

Country of ref document: EP

Kind code of ref document: A1