WO2022094809A1 - Procédé de resélection d'équipement d'utilisateur relais, appareil, dispositif de communication et support de stockage - Google Patents

Procédé de resélection d'équipement d'utilisateur relais, appareil, dispositif de communication et support de stockage Download PDF

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Publication number
WO2022094809A1
WO2022094809A1 PCT/CN2020/126561 CN2020126561W WO2022094809A1 WO 2022094809 A1 WO2022094809 A1 WO 2022094809A1 CN 2020126561 W CN2020126561 W CN 2020126561W WO 2022094809 A1 WO2022094809 A1 WO 2022094809A1
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Prior art keywords
relay
reselection
serving cell
configuration
remote
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PCT/CN2020/126561
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English (en)
Chinese (zh)
Inventor
杨星
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Priority to PCT/CN2020/126561 priority Critical patent/WO2022094809A1/fr
Priority to CN202080003138.0A priority patent/CN112514520A/zh
Publication of WO2022094809A1 publication Critical patent/WO2022094809A1/fr
Anticipated expiration legal-status Critical
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    • 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
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user

Definitions

  • the present disclosure relates to the field of wireless communication, but is not limited to the field of wireless communication, and in particular, relates to a reselection method, apparatus, communication device and storage medium for a relay UE.
  • a UE may not directly connect with the base station, but realize the connection and communication with the base station through the relay of another UE; among them, the UE connected with the base station is called a remote UE (remote UE), and the UE providing the relay function is the middle UE.
  • Relay UE relay UE
  • the remote UE communicates with the relay UE through a direct link. As for the direct link connection between the remote UE and the relay UE, it is easy for the relay UE to select or fail to select a suitable UE.
  • the embodiments of the present disclosure disclose a reselection method, apparatus, communication device, and storage medium for a relay UE.
  • a method for reselection of a relay UE is provided, which is applied to a remote UE, and the method includes:
  • the relay UE In response to a configuration failure of the direct link (SL) between the remote UE and the relay UE, the relay UE is reselected based on the restricted reselection condition.
  • SL direct link
  • a reselection apparatus for a relay UE which is applied to a remote UE, and the apparatus includes:
  • the reselection module is configured to reselect the relay UE based on the restricted reselection condition in response to a configuration failure of the direct link (SL) between the remote UE and the relay UE.
  • SL direct link
  • a communication device comprising:
  • memory for storing processor-executable instructions
  • the processor is configured to: when executing the executable instructions, implement the method for reselection of a relay UE according to any embodiment of the present disclosure.
  • a computer storage medium stores a computer-executable program, and when the executable program is executed by a processor, implements the replay of the relay UE according to any embodiment of the present disclosure. Choose method.
  • the remote UE in response to a configuration failure of the direct link SL between the remote UE and the relay UE, the remote UE reselects the relay UE based on the restricted reselection condition; that is, the remote UE can reselect the relay UE according to the restriction Conditional reselection relay UE.
  • the probability of reselection to the relay UE with configuration failure before the reselection can be greatly reduced, thereby greatly reducing the recurrence of direct re-selection.
  • the probability of connection failure of the connected link that is, the connection success rate of the direct link between the remote UE and the reselected relay UE is improved.
  • FIG. 1 is a schematic structural diagram of a wireless communication system.
  • Fig. 2 is a schematic diagram showing a reselection method for a relay UE according to an exemplary embodiment.
  • Fig. 3 is a schematic diagram showing a reselection method for a relay UE according to an exemplary embodiment.
  • Fig. 4 is a schematic diagram showing a reselection method for a relay UE according to an exemplary embodiment.
  • Fig. 5 is a schematic diagram showing a reselection method for a relay UE according to an exemplary embodiment.
  • Fig. 6 is a schematic diagram showing a reselection method for a relay UE according to an exemplary embodiment.
  • Fig. 7 is a schematic diagram illustrating a reselection method for a relay UE according to an exemplary embodiment.
  • Fig. 8 is a block diagram of a user equipment according to an exemplary embodiment.
  • Fig. 9 is a block diagram of a base station according to an exemplary embodiment.
  • first, second, third, etc. may be used in embodiments of the present disclosure to describe various pieces of information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.
  • the word "if” as used herein can be interpreted as "at the time of” or "when” or "in response to determining.”
  • FIG. 1 shows a schematic structural diagram of a wireless communication system provided by an embodiment of the present disclosure.
  • the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include: several user equipments 110 and several base stations 120 .
  • the user equipment 110 may be a device that provides voice and/or data connectivity to the user.
  • User equipment 110 may communicate with one or more core networks via a Radio Access Network (RAN), and user equipment 110 may be IoT user equipment such as sensor devices, mobile phones (or "cellular" phones) ) and a computer with IoT user equipment, for example, may be stationary, portable, pocket-sized, hand-held, computer-built or vehicle-mounted.
  • RAN Radio Access Network
  • IoT user equipment such as sensor devices, mobile phones (or "cellular" phones)
  • a computer with IoT user equipment for example, may be stationary, portable, pocket-sized, hand-held, computer-built or vehicle-mounted.
  • station Ses, STA
  • subscriber unit subscriber unit
  • subscriber station subscriber station
  • mobile station mobile station
  • mobile station mobile station
  • remote station remote station
  • access terminal remote user equipment
  • the user equipment 110 may also be a device of an unmanned aerial vehicle.
  • the user equipment 110 may also be an in-vehicle device, for example, a trip computer with a wireless communication function, or a wireless user equipment connected to an external trip computer.
  • the user equipment 110 may also be a roadside device, for example, may be a street light, a signal light, or other roadside devices with a wireless communication function.
  • the base station 120 may be a network-side device in a wireless communication system.
  • the wireless communication system may be the 4th generation mobile communication (4G) system, also known as the Long Term Evolution (Long Term Evolution, LTE) system; or, the wireless communication system may also be a 5G system, Also known as New Radio System or 5G NR System. Alternatively, the wireless communication system may also be a next-generation system of the 5G system.
  • the access network in the 5G system can be called a new generation radio access network (New Generation-Radio Access Network, NG-RAN).
  • New Generation-Radio Access Network NG-RAN
  • the base station 120 may be an evolved base station (eNB) used in the 4G system.
  • the base station 120 may also be a base station (gNB) that adopts a centralized distributed architecture in a 5G system.
  • eNB evolved base station
  • gNB base station
  • the base station 120 adopts a centralized distributed architecture it usually includes a centralized unit (central unit, CU) and at least two distributed units (distributed unit, DU).
  • the centralized unit is provided with a protocol stack of a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control Protocol (Radio Link Control, RLC) layer, and a Medium Access Control (Medium Access Control, MAC) layer;
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Medium Access Control
  • a physical (Physical, PHY) layer protocol stack is set in the distribution unit, and a specific implementation manner of the base station 120 is not limited in this embodiment of the present disclosure.
  • a wireless connection can be established between the base station 120 and the user equipment 110 through a wireless air interface.
  • the wireless air interface is a wireless air interface based on the fourth generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, such as
  • the wireless air interface is a new air interface; alternatively, the wireless air interface may also be a wireless air interface based on a 5G next-generation mobile communication network technology standard.
  • an E2E (End to End, end-to-end) connection may also be established between the user equipments 110 .
  • V2V vehicle-to-vehicle
  • V2I vehicle-to-infrastructure
  • V2P vehicle-to-pedestrian
  • V2X vehicle-to-everything
  • the above-mentioned user equipment may be regarded as the terminal equipment of the following embodiments.
  • the above wireless communication system may further include a network management device 130 .
  • the network management device 130 may be a core network device in a wireless communication system.
  • the network management device 130 may be a mobility management entity (Mobility Management Entity) in an evolved packet core network (Evolved Packet Core, EPC). MME).
  • the network management device may also be other core network devices, such as a serving gateway (Serving GateWay, SGW), a public data network gateway (Public Data Network GateWay, PGW), a policy and charging rule functional unit (Policy and Charging Rules) Function, PCRF) or home subscriber server (Home Subscriber Server, HSS), etc.
  • the implementation form of the network management device 130 is not limited in this embodiment of the present disclosure.
  • the remote UE and the relay UE can transmit data through the direct link, and the situation that the direct link connection fails includes one of the following:
  • the direct link fails; the direct link failure is usually caused by the deterioration of the quality of the direct link;
  • the configuration failure here is usually because the UE cannot match the configuration of the peer UE; for example, the remote UE cannot match the configuration of the relay UE.
  • the connection of the direct link between the remote UE and the relay UE fails due to configuration failure, the communication quality of the direct link does not change, so when the remote UE reselects the relay UE , it is very likely that the relay UE that has failed to configure will be reselected again; in this way, the direct link connection between the remote UE and the relay UE has a high probability of failure again.
  • the relay UE when the configuration of the direct link between the remote UE and the relay UE fails, the relay UE can be reselected based on the restricted reselection condition, thereby reducing the number of relay UEs that are reselected again until the configuration failure occurs. , reducing the probability that the direct link connection will fail again.
  • an embodiment of the present disclosure provides a method for reselection of a relay UE, which is applied to a remote user equipment (UE), and the method includes:
  • Step S22 In response to a configuration failure of the direct link (SideLink, SL) between the remote UE and the relay UE, the relay UE is reselected based on the restricted reselection condition.
  • SideLink direct link
  • Both the remote UE and the relay UE in the embodiments of the present disclosure may be various types of user equipment; for example, both the remote UE and the relay UE may be mobile phones, smart terminals, computers, servers, transceiver devices, tablet devices, or medical devices. equipment, etc. Another example may be a game console, a multimedia device, or a wearable device. It only needs to be satisfied that the remote UE and the relay UE can communicate through the SL connection.
  • the relay UE here is a UE connected to the base station;
  • the remote UE here is a UE not connected to the base station, and the remote UE communicates with the base station through the relay UE.
  • the base station here is the interface device for the UE to access the Internet;
  • the base station can be various types of base stations, such as 3G base stations, 4G base stations, 5G base stations or other evolved base stations; the base stations can also be terrestrial network base stations or non-terrestrial network base stations base station.
  • the configuration failure is an access stratum configuration failure. That is, the configuration failure is a configuration failure that occurs at the AS layer.
  • reselection of the relay UE based on the restricted reselection condition includes at least one of the following:
  • the relay UE with the configuration failure is reselected with the lowest priority as the reselected relay UE.
  • the relay UE with the configuration failure is reselected with the lowest priority as the re-selected relay UE, that is, the relay UE with the configuration failure is reselected with a higher priority than the relay UE with the configuration failure.
  • the UE is used as the relay UE after reselection.
  • the reselection conditions are restricted, including but not limited to one of the following:
  • a relay UE whose serving cell is different from the serving cell of the relay UE before reselection is preferentially selected.
  • the remote UE here can obtain the relay UEs that have failed to configure; the relay UEs that have failed to configure include at least one of the following: a UE that has failed to configure before the reselection, any one of the middle UEs that have failed to configure The relay UE and the relay UE that has failed configuration within a preset time period.
  • the remote UE here can obtain the serving cell corresponding to each relay UE.
  • the restrictive reselection condition here may also be: not to select a relay UE whose serving cell is the same as the serving cell of the relay UE in which the configuration failure has occurred.
  • the restrictive reselection condition here may also be: do not select the serving cell and the relay UE whose number of serving cells of the relay UE before the reselection exceeds a predetermined value; or, do not select the serving cell
  • the number of cells and the serving cells of the relay UE in which the configuration failure has occurred is the same as that of relay UEs whose number exceeds a predetermined value.
  • the serving cells of relay UE1 include cell 1, cell 2, and cell 3, and the relay UE1 is the relay UE before reselection;
  • the server cells of relay UE2 include cell 1, cell 3, and cell 4 ;
  • the serving cells of the relay UE3 include cell 1, cell 2 and cell 5;
  • the predetermined value is 1; in this way, the remote UE does not select the relay UE3 as the relay UE for reselection.
  • the restricting reselection condition may also be other reselection conditions, and it only needs to satisfy that the relay UE before the reselection is not preferentially selected.
  • the restricting re-selection condition may include: not selecting the relay UE with configuration failure before the re-selection.
  • the restricting reselection condition includes: if the relay UE is not reselected to the relay UE based on the re-selection of the relay UE, the pre-reselection relay UE is selected as the re-selection relay UE, and the like.
  • the remote end can reselect the relay UE according to the restricted reselection condition, which can greatly reduce the number of re-selection to re-selection compared to reselection of the relay UE in no arbitrary manner (for example, not using the restricted reselection condition).
  • the probability of a failed relay UE in the configuration before the selection is greatly reduced, so as to greatly reduce the probability of another direct link connection failure, that is, to improve the success rate of the direct link connection between the remote UE and the re-selected relay UE.
  • the restrictive reselection condition may be not to select a relay UE that has had a configuration failure, and/or not to select a relay UE whose serving cell is the same as the serving cell of the relay UE before the reselection; thus, It can greatly reduce the selection of relay UEs with configuration failure, thereby improving the connection success rate of the direct link between the remote UE and the re-selected relay UE.
  • the restrictive reselection condition may be to preferentially select a relay UE other than the relay UE before reselection, and/or preferentially select a relay UE whose serving cell is different from the serving cell of the relay UE before reselection ; In this way, the probability of selecting a relay UE without configuration failure can be increased, thereby greatly reducing the probability that the reselected UE will fail the direct link connection again, and improving the relationship between the remote UE and the reselected relay.
  • the connection success rate of the direct link of the UE may be to preferentially select a relay UE other than the relay UE before reselection, and/or preferentially select a relay UE whose serving cell is different from the serving cell of the relay UE before reselection ; In this way, the probability of selecting a relay UE without configuration failure can be increased, thereby greatly reducing the probability that the reselected UE will fail the direct link connection again, and improving the relationship between the remote UE
  • the reselection method of the relay UE includes:
  • Step S21 Determine the restricted reselection conditions used for reselection.
  • the pre-determination here may be the specification in the communication standard protocol; for example, the restricted reselection condition stored in the remote UE in advance.
  • the remote UE can determine the restricted reselection conditions used for reselection according to the provisions of the communication standard protocol; in this way, each remote UE can be made to perform the reselection of the relay UE according to the unified restricted reselection condition. so that the unified communication standard can be realized.
  • the remote UE can also obtain the restricted reselection condition according to the relay UE before the reselection, and provides a variety of ways to select the restricted reselection condition to be used and can be based on the latest reselection restriction condition re-selection.
  • a method for implementing the above step S21 includes:
  • the restricted reselection condition used for the reselection is determined.
  • the configuration source of the relay UE here can be from the base station or the relay UE.
  • the configuration source here, you can configure the source for the AS.
  • the method further includes:
  • the restricted reselection condition used for the reselection is not to select the relay UE whose serving cell is the same as the serving cell of the relay UE before the reselection, or to preferentially select the serving cell A relay UE that is different from the serving cell of the relay UE before reselection.
  • the remote UE can determine: not to select a relay UE whose serving cell is the same as that of the relay UE before reselection, or to preferentially select a relay UE whose serving cell is different from the serving cell of the relay UE before reselection as the one used for reselection Restricted reselection conditions; thus more suitable restricted reselection conditions can be selected.
  • the method further includes:
  • the restricted reselection condition used for the reselection is not to select the relay UE that has undergone configuration failure or to preferentially select the relay UE that is different from the relay UE before the reselection.
  • Relay UE In response to the configuration of the relay UE before the reselection comes from the relay UE, it is determined that the restricted reselection condition used for the reselection is not to select the relay UE that has undergone configuration failure or to preferentially select the relay UE that is different from the relay UE before the reselection.
  • the remote UE can easily obtain whether the configuration failure of each relay UE has occurred. In this way, the remote UE can directly determine that it is more appropriate to restrict the reselection condition not to select the relay UE that has experienced configuration failure, or to preferentially select the relay UE other than the UE before reselection.
  • the restriction reselection condition corresponding to the configuration source can be determined according to the configuration source of each relay UE; that is, the embodiment of the present disclosure can select a more suitable restriction reselection condition, so that based on the more suitable restriction reselection condition
  • the relay UE that is re-selected under the restricted reselection conditions can further reduce the probability of another failure of the direct link connection with the remote UE.
  • the method further includes:
  • Step S20 Obtain the configuration source of the relay UE before reselection.
  • a method for implementing the above step S20 includes:
  • the configuration source of the relay UE before the reselection is determined.
  • the broadcast message here may be a system message block; for example, the broadcast message is SIB13.
  • the broadcast message may also be other broadcast messages; for example, it may be any suitable system message from SIB1 to SIB18.
  • the configuration source of the relay UE before the reselection can be obtained by forwarding the broadcast message of the base station; and in its embodiment, the configuration source of the relay UE can also be obtained based on other entities on the network side Obtained; for example, obtained by any other relay UE connected to the relay UE; the other relay UE includes its own configuration source. For another example, if the remote UE needs to obtain the configuration source of the relay UE1, it can also obtain it based on the relay UE1.
  • the configuration source of the relay UE before the reselection is determined based on the broadcast message of the base station forwarded by the relay UE before the reselection, including:
  • the configuration source UE of the relay UE before the reselection is determined.
  • the broadcast block of the direct link here includes, but is not limited to, the configuration source of the relay UE.
  • the broadcast message carries the broadcast block of the direct link
  • the broadcast block is the broadcast message forwarded from the base station; in this way, it can be determined that the configuration source of the relay UE before the reselection is base station. If the broadcast message does not carry the broadcast block of the direct link, it can be determined that there is no broadcast block of the direct link in the base station, then the broadcast block of the direct link is more likely to come from the relay UE; Therefore, it is determined that the configuration source of the relay UE before the reselection is the relay UE. In this way, the embodiment of the present disclosure can more accurately determine the configuration source of the relay UE according to whether the broadcast message carries the broadcast block of the direct link.
  • a method for implementing the above step S21 includes:
  • the relay UE before the reselection is selected as the reselected relay UE;
  • the relay UE before reselection is selected as the reselected relay UE.
  • the relay UE before the reselection can be reselected as the reselected relay UE. In this way, the reselection of the relay UE can be performed based on more relay UEs, and the probability of reselection to the relay UE can be increased.
  • the relay UE before the reselection may be reselected as the reselected relay UE. In this way, the reselection of the relay UE can be performed based on more relay UEs, and the probability of reselection to the relay UE can be increased.
  • the implementation manner of the above step S21 may also be as follows: in response to the relay UE based on the preferential selection of the serving cell that is different from the serving cell of the relay UE before the reselection is reselected to the relay UE, The relay UE is reselected based on the relay UE whose number of serving cells differs from the serving cell of the relay UE before the reselection by more than a predetermined value.
  • step S21 may further include:
  • the serving cell based on the serving cell and the relay UE before reselection fails.
  • a relay UE whose number of different serving cells is less than or equal to a predetermined value reselects a relay UE.
  • step S21 may further include:
  • the relay UE before reselection is selected as the re-selection. Selected relay UE.
  • the selection can be performed hierarchically; for example , you can first select the relay UE to be reselected from the number of serving cells and the number of serving cells of the relay UE before the reselection exceeds a predetermined value; Before reselection, the number of different serving cells of the relay UE is less than or equal to that of the predetermined relay UE, and the relay UE is reselected.
  • the relay UEs for which configuration failure will not occur is reselected as far as possible, so that the re-selected relays can be further improved.
  • the success rate of the direct link connection between the UE and the remote UE is reselected.
  • the above step S22 may include:
  • Step S221 in response to a SL configuration failure between the remote UE and the relay UE, a timer is started, and within the timing range of the timer, the relay UE is reselected based on a restricted reselection condition.
  • a timer is set in the remote UE, and the timing period of the timer is obtained.
  • the timing period of the timer here is within the timing range of the timer.
  • the timing period of the timer here is pre-configured by the remote UE or determined based on the configuration of the relay UE to the remote UE.
  • the reselection method of the relay UE includes: the remote UE preconfigures the timing period of the timer. For example, if the timing period of the timer configured by the remote UE is 1 minute, after the timer is started, the relay UE can be reselected based on the restricted reselection condition within 1 minute of the timer running.
  • the reselection method of the relay UE includes: acquiring configuration information of the relay UE to the remote UE, wherein the configuration information carries the timing period of the timer.
  • the configuration information here may be sent by the relay UE to the remote UE before the direct link between the relay UE and the remote UE is disconnected; or, the configuration information here may also be sent by the relay UE.
  • the timing time of the timer here may also be specified by a communication protocol.
  • the timing period of the timer may be determined in various ways.
  • the remote UE can reselect the relay UE based on the restricted reselection condition within the time range of the timer; in this way, the time for reselection of the relay UE can be shortened, thereby improving the efficiency of reselection of the relay UE .
  • an embodiment of the present disclosure further provides a method for reselection of a relay UE, which is applied to a remote UE and includes the following steps:
  • Step S31 establishing an SL connection with the first relay UE
  • the remote UE establishes an SL connection with the first relay UE.
  • Step S32 determine that an AS configuration failure occurs in the SL connection with the first relay UE;
  • the remote UE determines that an AS configuration failure occurs in the SL connection between the remote UE and the first relay UE.
  • Step S33 Receive a system message broadcast by the first relay UE, wherein the system message at least includes reselection constraints;
  • the remote UE receives a system message broadcast by the first relay UE, where the system message at least includes a reselection restriction condition; the reselection restriction condition includes: preferentially selecting the serving cell and the first relay Relay UEs with different serving serving cells of the UE.
  • the remote UE may also acquire the reselection restriction conditions in other ways; for example, the reselection restriction to be used may be acquired based on the AS configuration source in the above embodiment, etc. condition.
  • the reselection restriction conditions may also be any reselection restriction conditions in the foregoing embodiments.
  • Step S34 the remote UE reselects the second relay UE as the relay UE of the remote UE based on the reselection restriction condition;
  • the remote UE preferentially selects a second relay UE whose service is smaller than that of the serving cell of the first relay UE as a reselected relay UE.
  • the serving cell obtained by the remote UE of the first relay UE is cell 1
  • the serving cells of the second relay UE, the third relay UE, the fourth relay UE and the fifth relay UE measured by the remote UE are respectively: Cell 1, Cell 2, Cell 1 and Cell 2.
  • the remote UE determines that the second relay UE and the fifth relay UE can be selected as Re-selected relay UE.
  • the remote UE selects the second relay UE as the reselected relay UE; of course, in other examples, the remote UE may also select the fifth relay UE as the reselected relay UE.
  • the relay UE when the configuration of the direct link between the remote UE and the first relay UE fails, the relay UE may be reselected based on a restricted reselection condition.
  • a restricted reselection condition In this way, compared to using an arbitrary method (for example, not based on restrictive reselection conditions) to reselect the relay UE, the probability of reselection to the relay UE with configuration failure before the reselection can be greatly reduced, thereby greatly reducing the recurrence of direct re-selection.
  • the probability of connection failure of the connection link increases the connection success rate of the direct connection between the remote UE and the reselected relay UE.
  • the restricted reselection condition is to select a relay UE in a serving cell different from the serving cell of the first relay UE, which can further improve the connection success rate of the direct link between the cloud UE and the reselected relay UE. .
  • a reselection device for relay UE is provided, which is applied to remote UE, and the device includes:
  • the reselection module 41 is configured to reselect the relay UE based on a restricted reselection condition in response to a configuration failure of the direct link SL between the remote UE and the relay UE.
  • the restricted reselection conditions include one of the following:
  • a relay UE whose serving cell is different from the serving cell of the relay UE before reselection is preferentially selected.
  • the reselection conditions are limited, including but not limited to at least one of the following:
  • Relay UEs that have failed configuration before reselection are not selected
  • Relay UEs whose number of the same serving cells exceeds a predetermined value in the serving cell of the serving cell and the serving cell of the relay UE before reselection are not selected;
  • Relay UEs whose number of the same serving cells exceeds a predetermined value in the serving cell and the serving cell of the relay UE in which the configuration failure has occurred are not selected;
  • the pre-reselected relay UE is selected as the reselected relay UE
  • reselection of the relay UE based on the restricted reselection condition includes at least one of the following:
  • the relay UE with the configuration failure is reselected with the lowest priority as the reselected relay UE.
  • the apparatus further includes:
  • the determination module 42 is configured to determine the restricted reselection conditions used for reselection.
  • the determining module 42 is configured to determine a restricted reselection condition used for reselection according to the configuration source of the relay UE before reselection.
  • the determining module 42 is configured to, in response to the configuration of the relay UE before reselection from the base station, determine that the restricted reselection condition used for the reselection is not to select the serving cell and the relay UE before reselection The relay UE with the same serving cell or the relay UE with the serving cell different from the serving cell of the relay UE prior to reselection is preferentially selected;
  • the determining module 42 is configured to, in response to the configuration of the relay UE before the reselection, come from the relay UE, and determine that the restrictive reselection condition used for the reselection is not to select the relay UE that has failed configuration or to preferentially select and re-selection. Relay UEs with different relay UEs are selected before.
  • the reselection module 41 is configured to, in response to the failure of reselection of the relay UE based on the preference for selecting a relay UE different from the relay UE before the reselection, select the relay UE before the reselection as the re-selection UE. the selected relay UE;
  • the reselection module 41 is configured to select the relay UE before the reselection as the reselection in response to the failure of reselection of the relay UE based on the preferential selection of the serving cell and the serving cell of the relay UE before the reselection. the relay UE.
  • the apparatus further includes:
  • the obtaining module 43 is configured to obtain the configuration source of the relay UE before reselection.
  • the obtaining module 43 is configured to determine the configuration source of the relay UE before the reselection based on the broadcast message of the base station forwarded by the relay UE before the reselection.
  • the obtaining module 43 is configured to, in response to the broadcast block carrying the direct link in the broadcast message, determine the configuration source base station of the relay UE before reselection;
  • the obtaining module 43 is configured to, in response to the broadcast message not carrying the broadcast block of the direct link, determine the configuration source UE of the relay UE before the reselection.
  • the reselection module 41 is configured to, in response to a SL configuration failure between the remote UE and the relay UE, start a timer, and within the time range of the timer, reselection based on the restricted reselection condition following the UE.
  • the timing period of the timer is pre-configured for the remote UE or determined based on the configuration of the relay UE to the remote UE.
  • the obtaining module 43 is configured to pre-configure the timing period of the timer; or, the obtaining module 43 is configured to obtain the timing period of the timer based on the relay UE.
  • Embodiments of the present disclosure provide a communication device, including:
  • memory for storing processor-executable instructions
  • the processor is configured to: when executing the executable instructions, implement the method for reselection of a relay UE according to any embodiment of the present disclosure.
  • the communication device here is a remote UE.
  • the processor may include various types of storage media, which are non-transitory computer storage media, and can continue to memorize and store information on the user equipment after the user equipment is powered off.
  • the processor may be connected to the memory through a bus or the like, for reading the executable program stored on the memory, for example, at least one of the methods shown in FIG. 2 to FIG. 6 .
  • Embodiments of the present disclosure also provide a computer storage medium, where the computer storage medium stores a computer-executable program, and when the executable program is executed by a processor, implements the method for reselection of a relay UE according to any embodiment of the present disclosure. For example, at least one of the methods shown in FIG. 2 to FIG. 6 .
  • FIG. 8 is a block diagram of a user equipment 800 according to an exemplary embodiment.
  • user device 800 may be a mobile phone, computer, digital broadcast user device, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, and the like.
  • user equipment 800 may include one or more of the following components: processing component 802, memory 804, power supply component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814 , and the communication component 816 .
  • the processing component 802 generally controls the overall operation of the user equipment 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the methods described above. Additionally, processing component 802 may include one or more modules that facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.
  • Memory 804 is configured to store various types of data to support operation at user equipment 800 . Examples of such data include instructions for any application or method operating on user device 800, contact data, phonebook data, messages, pictures, videos, and the like. Memory 804 may be implemented by any type of volatile or nonvolatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable 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
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • Power supply component 806 provides power to various components of user equipment 800 .
  • Power components 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to user equipment 800 .
  • Multimedia component 808 includes a screen that provides an output interface between the user device 800 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
  • the touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundaries of a touch or swipe action, but also detect the duration and pressure associated with the touch or swipe action.
  • the multimedia component 808 includes a front-facing camera and/or a rear-facing camera. When the user equipment 800 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have focal length and optical zoom capability.
  • Audio component 810 is configured to output and/or input audio signals.
  • audio component 810 includes a microphone (MIC) that is configured to receive external audio signals when user device 800 is in operating modes, such as call mode, recording mode, and voice recognition mode.
  • the received audio signal may be further stored in memory 804 or transmitted via communication component 816 .
  • audio component 810 also includes a speaker for outputting audio signals.
  • the I/O interface 812 provides an interface between the processing component 802 and a peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.
  • Sensor assembly 814 includes one or more sensors for providing status assessment of various aspects of user equipment 800 .
  • the sensor component 814 can detect the open/closed state of the device 800, the relative positioning of components, such as the display and keypad of the user device 800, the sensor component 814 can also detect the user device 800 or a component of the user device 800
  • the position of the user equipment 800 changes, the presence or absence of user contact with the user equipment 800, the orientation or acceleration/deceleration of the user equipment 800, and the temperature of the user equipment 800 changes.
  • Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 816 is configured to facilitate wired or wireless communications between user device 800 and other devices.
  • User equipment 800 may access wireless networks based on communication standards, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication.
  • NFC near field communication
  • the NFC module may 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
  • user equipment 800 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A programmed gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation is used to perform the above method.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A programmed gate array
  • controller microcontroller, microprocessor or other electronic component implementation is used to perform the above method.
  • non-transitory computer-readable storage medium including instructions, such as a memory 804 including instructions, executable by the processor 820 of the user equipment 800 to perform the above 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, and the like.
  • an embodiment of the present disclosure shows a structure of a base station.
  • the base station 900 may be provided as a network-side device.
  • base station 900 includes a processing component 922, which further includes one or more processors, and a memory resource, represented by memory 932, for storing instructions executable by processing component 922, such as application programs.
  • An application program stored in memory 932 may include one or more modules, each corresponding to a set of instructions.
  • the processing component 922 is configured to execute instructions to execute any of the aforementioned methods applied to the base station, eg, the methods shown in FIGS. 2-5 .
  • the base station 900 may also include a power supply assembly 926 configured to perform power management of the base station 900, a wired or wireless network interface 950 configured to connect the base station 900 to a network, and an input output (I/O) interface 958.
  • Base station 900 may operate based on an operating system stored in memory 932, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.

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

Abstract

Des modes de réalisation de la présente divulgation concernent un procédé de resélection d'équipement d'utilisateur (UE) relais, un appareil, un dispositif de communication et un support de stockage. Le procédé de resélection d'UE relais comprend : en réponse à une défaillance de configuration d'une liaison latérale entre un UE distant et un UE relais, la resélection, par l'UE distant, de l'UE relais sur la base d'une condition de resélection restreinte ; c'est-à-dire, l'UE distant peut resélectionner l'UE relais selon une condition de resélection restreinte. Ainsi, des modes de réalisation de la présente divulgation, par rapport à la resélection d'un UE relais d'une manière arbitraire (par exemple, pas selon une condition de resélection restreinte), sont capables de réduire de manière significative la probabilité de resélectionner un UE relais dans lequel une défaillance de configuration s'est produite avant la resélection, ce qui permet de réduire fortement la probabilité d'une nouvelle apparition d'une défaillance de connexion de liaison latérale, c'est-à-dire d'améliorer le taux de réussite de connexion d'une liaison latérale entre un UE distant et un UE relais resélectionné.
PCT/CN2020/126561 2020-11-04 2020-11-04 Procédé de resélection d'équipement d'utilisateur relais, appareil, dispositif de communication et support de stockage Ceased WO2022094809A1 (fr)

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CN202080003138.0A CN112514520A (zh) 2020-11-04 2020-11-04 中继ue的重选方法、装置、通信设备及存储介质

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