WO2024152997A1 - 中继ue选择方法、装置及电子设备 - Google Patents

中继ue选择方法、装置及电子设备 Download PDF

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Publication number
WO2024152997A1
WO2024152997A1 PCT/CN2024/071928 CN2024071928W WO2024152997A1 WO 2024152997 A1 WO2024152997 A1 WO 2024152997A1 CN 2024071928 W CN2024071928 W CN 2024071928W WO 2024152997 A1 WO2024152997 A1 WO 2024152997A1
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WIPO (PCT)
Prior art keywords
relay
ues
network parameter
target
network
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PCT/CN2024/071928
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English (en)
French (fr)
Inventor
毛源泽
李靖
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Publication of WO2024152997A1 publication Critical patent/WO2024152997A1/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
    • H04W40/246—Connectivity information discovery
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application belongs to the field of communication technology, and specifically relates to a relay UE selection method, device and electronic device.
  • the 3GPP conducted research on new air interface sidelink relay technology in R17, introducing the relay technology from user equipment (UE) to the network.
  • UE user equipment
  • the remote UE can select a suitable relay UE, which provides network services for the remote UE to ensure the continuity of the remote UE's services.
  • the remote UE selects the relay UE to be accessed based on the signal quality of the relay UE.
  • the purpose of the embodiments of the present application is to provide a relay UE selection method, device and electronic device, which can enable a remote UE to select and connect to a suitable relay UE.
  • an embodiment of the present application provides a relay UE selection method, which is applied to a first UE, and the method includes:
  • the first feedback message carries a first network parameter and a second network parameter, where the first network parameter is used to indicate the signal quality of the relay UE, and the second network parameter is used to indicate the connection information between the relay UE and other communication devices;
  • an embodiment of the present application provides a relay UE selection method, which is applied to a relay UE, and the method includes:
  • a first feedback message is sent to the first UE, where the first feedback message carries a first network parameter and a second network parameter, where the first network parameter is used to indicate the signal quality of the relay UE, and the second network parameter is used to indicate connection information between the relay UE and other communication devices.
  • an embodiment of the present application provides a relay UE selection device, which is applied to a first UE, and the device includes:
  • a first sending module configured to send a relay discovery request to multiple relay UEs
  • a first receiving module configured to receive multiple first feedback messages sent by multiple relay UEs in response to the relay discovery request, wherein the first feedback message carries a first network parameter and a second network parameter, wherein the first network parameter is used to indicate the signal quality of the relay UE, and the second network parameter is used to indicate the connection information between the relay UE and other communication devices;
  • a determination module configured to determine a target relay UE from the plurality of relay UEs according to the first network parameter and the second network parameter;
  • a switching module is used to switch to the target relay UE.
  • an embodiment of the present application provides a relay UE selection device, which is applied to a relay UE, and the device includes:
  • a second receiving module configured to receive a relay discovery request sent by the first UE
  • the second sending module is used to send a first feedback message to the first UE, where the first feedback message carries a first network parameter and a second network parameter, where the first network parameter is used to indicate the signal quality of the relay UE, and the second network parameter is used to indicate the connection information between the relay UE and other communication devices.
  • an embodiment of the present application provides an electronic device, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the relay UE selection method described in the first aspect are implemented.
  • an embodiment of the present application provides an electronic device, comprising a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the relay UE selection method described in the second aspect are implemented.
  • an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored.
  • the program or instruction is executed by a processor, the steps of the relay UE selection method as described in the first aspect or the second aspect are implemented.
  • an embodiment of the present application provides a chip, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instructions to implement the steps of the relay UE selection method as described in the first aspect or the second aspect.
  • an embodiment of the present application provides a computer program product, which is stored in a storage medium and is executed by at least one processor to implement the steps of the relay UE selection method as described in the first aspect or the second aspect.
  • a first UE sends a relay discovery request to multiple relay UEs; receives multiple first feedback messages sent by multiple relay UEs in response to the relay discovery request, the first feedback message carries a first network parameter and a second network parameter, the first network parameter is used to indicate the signal quality of the relay UE, and the second network parameter is used to indicate the connection information between the relay UE and other communication devices; determines a target relay UE from multiple relay UEs based on the first network parameter and the second network parameter; and switches to the target relay UE.
  • the remote UE can determine the target relay UE to be switched from multiple relay UEs based on the signal quality of each relay UE and the connection information between each relay UE and other communication equipment. Since not only the signal quality of the relay UE but also the connection information between the relay UE and other communication equipment is referred to when selecting the target relay UE, the problem of multiple remote UEs simultaneously requesting to connect to the same relay UE can be avoided, thereby improving the success rate of the remote UE connecting to the relay UE, so that the remote UE chooses to connect to the appropriate relay UE.
  • FIG1 is an example diagram of a relay technology from a UE to a network in the related art
  • FIG2 is a flow chart of a relay UE selection method provided in an embodiment of the present application.
  • FIG3 is an example diagram of an application scenario of a relay UE selection method provided in an embodiment of the present application.
  • FIG4 is a flowchart of another relay UE selection method provided in an embodiment of the present application.
  • FIG5 is a structural block diagram of a relay UE selection device provided in an embodiment of the present application.
  • FIG6 is a structural block diagram of another relay UE selection device provided in an embodiment of the present application.
  • FIG7 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application.
  • FIG8 is a schematic diagram of the hardware structure of an electronic device implementing various embodiments of the present application.
  • first, second, etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first”, “second”, etc. are generally of one type, and the number of objects is not limited.
  • the first object can be one or more.
  • the character "/" generally indicates that the objects associated with each other are in an "or” relationship.
  • Embodiments of the present application provide a relay UE selection method, device, and electronic device.
  • the remote UE can select a suitable relay UE, and the relay UE will provide network services to the remote UE to ensure the continuity of the remote UE's services.
  • U2N Relay User Equipment-to-Network Relay
  • FIG1 shows an application scenario of the U2N Relay technology, which includes two base stations, namely base station 10 and base station 13.
  • Relay user equipment 11 is within the signal coverage of base station 10 and has a high signal quality.
  • Relay user equipment 14 is within the signal coverage of base station 13 and has a high signal quality.
  • the remote user equipment 12 is initially at the edge of the signal coverage of base station 10. And the signal quality is poor.
  • the remote user equipment 12 can access the relay user equipment 11, and the relay user equipment 11 provides network services for the remote user equipment 12. Afterwards, the remote user equipment 12 moves to the edge of the signal coverage of the base station 13 and the signal quality is poor.
  • the remote user equipment 12 can reselect a relay user equipment, for example, select to access the relay user equipment 14, and the relay user equipment 14 provides network services for the remote user equipment 12. Finally, the remote user equipment 12 moves to the signal coverage of the base station 13 and the signal quality is high. At this time, it selects to access the base station 13, and the base station 13 provides network services for the remote user equipment 12.
  • the relay UE selection method provided in the embodiment of the present application is applicable to electronic devices.
  • the electronic devices may include: mobile terminals such as smart phones, tablet computers, personal digital assistants, etc., and the embodiment of the present application is not limited to this.
  • FIG2 is a flow chart of a relay UE selection method provided in an embodiment of the present application, which is applied to a first UE, where the first UE is a remote UE. As shown in FIG2 , the method may include the following steps: step 201, step 202, step 203, and step 204;
  • step 201 a relay discovery request is sent to a plurality of relay user equipments.
  • the first UE i.e., the remote UE
  • the remote UE uses a relay UE to access the Internet or make calls. Accordingly, when the first UE initiates a network attachment service, if no available network is detected, a relay discovery request is sent to multiple relay UEs.
  • the no-signal area refers to an area outside the coverage of the base station network.
  • the network attachment service may include any of the following: LTE attachment, 5G network attachment, etc.
  • the remote UE when the remote UE initiates a network attachment service, it will perform a network search and network attachment. Since the remote UE is outside the coverage of the base station network, it will not search for a corresponding available network. At this time, the selection of the relay UE can be triggered and the selected relay UE can be switched to provide services for the remote UE.
  • the remote UE is out of the coverage of the base station network.
  • the remote UE can access the relay UE, and the relay UE provides call services for the remote UE.
  • the remote UE is out of the coverage of the base station network.
  • the remote UE can access the relay UE, and the relay UE provides Internet access services for the remote UE.
  • the remote UE is currently in a weak signal area, and the remote UE uses a relay UE to access the Internet or make calls. Accordingly, when the first UE initiates a network attachment service, if an available network is detected, and the signal quality of the available network is lower than the fourth threshold after attaching to the available network, a relay discovery request is sent to multiple relay UEs.
  • the weak signal area refers to the edge weak signal area of the base station.
  • the network attachment service may include any of the following: LTE attachment, 5G network attachment, etc.
  • the remote UE when the remote UE initiates a network attachment service, it will perform a network search and network attachment. Since the remote UE is in the weak signal area at the edge of the base station, it can search for the corresponding available network, execute the corresponding network attachment process on the available network, and then initiate a measurement of the signal quality of the available network. If the signal quality of the available network is poor, it triggers the selection of the relay UE and switches to the selected relay UE, which provides services for the remote UE.
  • the remote UE is in a weak signal edge area of a base station.
  • the remote UE can access the relay UE, and the relay UE provides call services for the remote UE.
  • the remote UE is in a weak signal area at the edge of the base station.
  • the remote UE can access the relay UE, and the relay UE provides Internet access services for the remote UE.
  • the relay UE currently accessed by the remote UE instructs the remote UE to perform relay reselection. Accordingly, upon receiving a relay reselection indication from the relay UE currently accessed by the first UE, a relay discovery request is sent to multiple relay UEs, wherein the relay reselection indication is used to instruct the first UE to reselect the relay UE.
  • the relay UE can instruct the remote UE to perform relay reselection to ensure that the remote UE's services can proceed normally.
  • the relay UE selection method in the embodiment of the present application can be applied to a variety of communication scenarios, for example, the scenario where the remote UE is outside the coverage of the base station, the scenario where the remote UE is in the edge weak signal area of the base station, and the scenario where the remote UE triggers relay reselection.
  • the application scenarios are relatively wide.
  • the remote UE may send a relay discovery request to multiple surrounding relay UEs by broadcasting, wherein the relay discovery request is used to request the relay UE to feedback its own first network parameters and second network parameters to the above-mentioned remote UE.
  • the relay discovery request may also carry the location information of the remote UE.
  • Figure 3 shows an application scenario of the relay UE selection method of an embodiment of the present application, which includes a base station 30, a relay user equipment 311, a relay user equipment 312,..., a relay user equipment 31n, and a remote user equipment 32, where n is an integer greater than 1.
  • the relay user equipments 311 - 31 n are all within the signal coverage of the base station 30 and have relatively high signal quality, and the remote user equipment 32 is at the edge of the signal coverage of the base station 30 and has relatively poor signal quality.
  • the remote user equipment 32 may select one from the relay user equipments 311-31n and access it.
  • the remote user equipment 32 may first send a relay discovery request to the relay user equipments 311-31n by broadcasting.
  • step 202 multiple first feedback messages sent by multiple relay user devices in response to relay discovery requests are received, the first feedback message carries a first network parameter and a second network parameter, the first network parameter is used to indicate the signal quality of the relay user device, and the second network parameter is used to indicate the connection information between the relay user device and other communication devices.
  • a first feedback message corresponds to a relay UE.
  • the first network parameter may include at least one of the following: reference signal received power (Reference Signal Receiving Power, RSRP), reference signal received quality (Reference Signal Received Quality, RSRQ), and signal-to-noise ratio (Signal To Noise Ratio, SNR), etc.
  • RSRP Reference Signal Receiving Power
  • RSRQ Reference Signal Received Quality
  • SNR Signal-to-noise ratio
  • the second network parameter may include at least one of the following: the number of second UEs accessing the relay UE (i.e., "degree"), the distance between the relay UE and the target communication device (i.e., "shortest path principle"), wherein:
  • the target communication device may include any one of the following: a base station, a second UE, and a third UE.
  • the second UE refers to the remote UE connected to the relay UE; the number of second UEs accessing the relay UE refers to the number of remote UEs connected to the relay UE.
  • the distance between the relay UE and the target communication device refers to the geographical distance between the relay UE and the target communication device.
  • the target communication device when the first UE, i.e., the remote UE, communicates with the base station, the target communication device is the base station, and the distance between the relay UE and the target communication device refers to the distance between the relay UE and the base station.
  • the distance between the relay UE and the target communication device refers to the distance between the relay UE and the second UE, wherein the second UE has accessed the relay UE.
  • the distance between the relay UE and the target communication device refers to the distance between the relay UE and the third UE.
  • the relay user equipment 311 ⁇ 31n will return a first feedback message to the remote user equipment 32.
  • the relay user equipment 311 returns a first feedback message
  • the first feedback message carries the number of remote user equipment connected to the relay user equipment 311, and the distance between the relay user equipment 311 and the base station 30
  • the relay user equipment 312 returns a first feedback message
  • the first feedback message carries the number of remote UEs connected to the relay user equipment 312, and the distance between the relay user equipment 312 and the base station 30
  • the relay user equipment 31n returns a first feedback message
  • the first feedback message carries the number of remote user equipment connected to the relay user equipment 31n, and the distance between the relay user equipment 31n and the base station 30.
  • a target relay user equipment is determined from a plurality of relay user equipments according to the first network parameter and the second network parameter.
  • a target relay UE can be selected from multiple relay UEs according to the first network parameter and the second network parameter.
  • step 203 includes the following steps: step 2031, step 2032, and step 2033;
  • a plurality of first relay UEs are determined from a plurality of relay UEs according to a first network parameter, wherein the signal quality of the first relay UE is greater than a first threshold.
  • step 2032 at least one second relay UE is determined from a plurality of first relay UEs according to the second network parameter.
  • a target relay UE is determined from at least one second relay UE.
  • the second relay UE when the number of second relay UEs is 1, the second relay UE is directly determined as the target relay UE; when the number of second relay UEs is greater than 1, one second relay UE is randomly selected as the target relay UE.
  • five first relay UEs are selected from the relay user equipment 311 to 31n based on signal quality, and then three second relay UEs are selected from the five first relay UEs based on connection information between the first relay UE and other communication devices, and finally one is randomly selected from the three second relay UEs as a target relay UE.
  • step 204 the target relay user equipment is switched.
  • the first UE that is, the remote UE can be switched to the target relay UE to perform transition communication, thereby ensuring the service continuity and stability of the remote UE.
  • step 204 includes the following steps: step 2041 and step 2042;
  • step 2041 a connection request is sent to the target relay UE.
  • connection request is used to request switching to the target relay UE.
  • step 2042 a second feedback message sent by the target relay UE in response to the connection request is received, the second feedback message carries a target connection state value, and the target connection state value is used to indicate that the first UE has established a connection with the target relay UE.
  • the target relay UE after receiving the connection request from the remote UE, the target relay UE will attempt to establish a connection with the remote UE. If the connection is successfully established, a second feedback message will be sent to the remote UE, carrying the target connection status value. After the remote UE receives the second feedback message from the target relay UE, it will parse the connection status value. If the connection status value is true or 1, it means that the remote UE and the target relay UE have been successfully connected and can communicate. Otherwise, the connection fails, and the above steps 201 to 203 need to be repeated to select a suitable relay UE and successfully access it.
  • the remote UE after the remote UE successfully switches to the target relay UE, the remote UE performs corresponding call services or Internet access services based on the target relay UE terminal.
  • the first UE sends a relay discovery request to multiple relay UEs; receives multiple first feedback messages sent by multiple relay UEs in response to the relay discovery request, the first feedback message carries a first network parameter and a second network parameter, the first network parameter is used to indicate the signal quality of the relay UE, and the second network parameter is used to indicate the connection information between the relay UE and other communication devices; determines the target relay UE from multiple relay UEs according to the first network parameter and the second network parameter; switches to the target relay UE.
  • the remote UE can determine the target relay UE to be switched from multiple relay UEs according to the signal quality of each relay UE and the connection information between each relay UE and other communication devices. Since not only the signal quality of the relay UE is referenced when selecting the target relay UE, but also the connection information between the relay UE and other communication devices is referenced, the remote UE can choose to connect to a suitable relay UE, thereby improving the success rate of the remote UE connecting to the relay UE.
  • the degree of connection of the relay UE may be taken into consideration to make up for the deficiency of the method of selecting the relay UE based only on the signal quality in the related art.
  • the second network parameter includes: the number of second UEs accessing the relay UE.
  • a first relay UE to which the number of second UE accesses is less than a second threshold, is determined as a second relay UE from among a plurality of first relay UEs.
  • five first relay UEs are selected from relay user equipment 311 to 31n according to signal quality, namely relay user equipment 311, relay user equipment 312, relay user equipment 313, relay user equipment 314 and relay user equipment 315; then, three second relay UEs are selected from user equipment 311 to 315 according to the number of other remote UEs connected to relay user equipment 311, the number of other remote UEs connected to relay user equipment 312, the number of other remote UEs connected to relay user equipment 313, the number of other remote UEs connected to relay user equipment 314 and the number of other remote UEs connected to relay user equipment 315, namely relay user equipment 313, relay user equipment 314 and relay user equipment 315; finally, one is randomly selected from relay user equipment 313 to 315 as a target relay UE, for example, relay user equipment 315 is finally selected as the target relay UE.
  • the remote UE can select the target relay UE to be switched from multiple relay UEs based on the signal quality of each relay UE and the number of other remote UEs connected to each relay UE. Since not only the signal quality of the relay UE but also the number of other remote UEs connected to the relay UE are referred to when selecting the target relay UE, the remote UE can choose to connect to a suitable relay UE, thereby improving the success rate of the remote UE connecting to the relay UE.
  • the target relay UE may be selected based on the shortest path principle, and accordingly, the second network parameter includes: the distance between the relay UE and the target communication device, and the above step 2032 includes the following steps: step 302 and step 303;
  • step 302 a plurality of first distances between the first UE and the target communication devices of each first relay UE are calculated according to the distances between each first relay UE and the target communication devices of the first relay UE.
  • the remote UE can obtain the distance between the remote UE and the first relay UE, and calculate the first distance between the remote UE and the target communication device corresponding to the first relay UE via the first relay UE based on the distance between the remote UE and the first relay UE and the distance between the first relay UE and the target communication device.
  • At least one second relay UE is determined from multiple first relay UEs based on multiple first distances, the first distance corresponding to at least one second relay UE is smaller than the first distance corresponding to the third relay UE, and the third relay UE is a relay UE among the first relay UEs except the second relay UE.
  • multiple first distances can be sorted from small to large to obtain a first sorting result; from multiple first relay UEs, the second relay UE corresponding to the first distance ranked in the top M positions in the first sorting result is selected, where M is a positive integer.
  • five first relay UEs are selected from relay user equipment 311 to 31n according to signal quality, namely relay user equipment 311, relay user equipment 312, relay user equipment 313, relay user equipment 314 and relay user equipment 315; then, the distance between the remote user equipment 32 and the relay user equipment 311 and the distance between the relay user equipment 311 and the base station 30 are summed to obtain the distance from the remote user equipment 32 to the base station 30 via the relay user equipment 311; similarly, the other four distance values can be obtained; according to the calculated distance values, three second relay UEs with the smallest distance values are selected, namely relay user equipment 311, relay user equipment 312 and relay user equipment 313; finally, one is randomly selected from the relay user equipment 311 to 313 as the target relay UE, for example, the relay user equipment 311 is finally selected as the target relay UE.
  • the remote UE can select the target relay UE to be switched from multiple relay UEs according to the signal quality of each relay UE and the distance between each relay UE and the target communication device. Since not only the signal quality of the relay UE is referenced when selecting the target relay UE, but also the distance from the remote UE to each target communication device via each relay UE is referenced, the remote UE can select to connect to a suitable relay UE, thereby improving the success rate of the remote UE connecting to the relay UE. In addition, selecting the shorter path from the remote UE to the target communication device via the relay UE can shorten the signaling transmission delay, increase the network response speed, and further improve the network adaptability of the UE.
  • the second network parameter includes: the number of second UEs accessing the relay UE, and the distance between the relay UE and the target communication device. Accordingly, the above step 2032 includes the following steps: step 304, step 305 and step 306.
  • a first relay UE to which the number of second UEs accessed is less than a third threshold is determined as a fourth relay UE from among a plurality of first relay UEs.
  • step 305 a plurality of second distances between the first UE and the target communication devices of each fourth relay UE are calculated according to the distances between each fourth relay UE and the target communication devices of the fourth relay UE.
  • At least one second relay UE is determined from multiple fourth relay UEs based on multiple second distances, the second distance corresponding to at least one second relay UE is smaller than the second distance corresponding to the fifth relay UE, and the fifth relay UE is a relay UE among the fourth relay UEs except the second relay UE.
  • the four first relay UEs with the largest RSRQs are selected from them, namely a, b, c, and d; then, check the number of other remote UEs connected to the four first relay UEs a, b, c, and d, for example, the number of connections of c and d is less than 5, and a and b are both greater than 5; then, select the fourth relay UEs with a connectivity less than 5, namely c and d; finally, compare the path lengths of c and d, if the two path lengths are different, select the one with the shorter path as the second relay UE, if the two path lengths are the same, both are used as the second relay UEs.
  • the remote UE can select the target relay UE to be switched from multiple relay UEs according to the signal quality of each relay UE, the number of other remote UEs connected to each relay UE, and the distance between each relay UE and the target communication device. Since the target relay UE is selected based not only on the signal quality of the relay UE, but also on the number of other remote UEs connected to the relay UE and the distance from the remote UE to each target communication device via each relay UE, the remote UE can select to connect to a suitable relay UE, thereby improving the success rate of the remote UE connecting to the relay UE. In addition, selecting the shorter path from the remote UE to the target communication device via the relay UE can shorten the signaling transmission delay, increase the network response speed, and further improve the network adaptability of the UE.
  • the provided relay UE selection method may further include the following steps after the above step 202: step 205.
  • step 205 the first network parameters and the second network parameters in the plurality of first feedback messages are stored.
  • the remote UE after receiving the first feedback message sent by the surrounding relay UEs, the remote UE will parse the signal quality parameters, connectivity parameters and distance parameters of the target communication device of each relay UE in the first feedback message and save them locally, and update them in real time to facilitate quick reading and comparison during subsequent use.
  • FIG4 is a flowchart of another relay UE selection method provided by some embodiments of the present application, which is applied to a relay UE. As shown in FIG4 , the method may include the following steps: step 401 and step 402;
  • step 401 a relay discovery request sent by a first user equipment is received.
  • Step 401 in the embodiment of the present application is similar to step 201 in the embodiment shown in FIG. 2 , and will not be described in detail here.
  • a first feedback message is sent to the first user equipment, the first feedback message carrying a first network parameter and a second network parameter, the first network parameter is used to indicate the signal quality of the relay user equipment, and the second network parameter is used to indicate the connection information between the relay user equipment and other communication devices.
  • a first feedback message corresponds to a relay UE.
  • the first network parameter may include at least one of the following: RSRP, RSRQ, and SNR, etc.
  • the "degree” and “shortest path principle" in a complex network are introduced, and the second network parameter may include at least one of the following: the number of second UEs accessing the relay UE (ie, the "degree"), and the distance between the relay UE and the target communication device (ie, the "shortest path principle"), wherein the target communication device may include any one of the following: a base station, a second UE, or a third UE.
  • the second UE refers to the remote UE connected to the relay UE; the number of second UEs accessing the relay UE refers to the number of remote UEs connected to the relay UE.
  • the distance between the relay UE and the target communication device refers to the geographical distance between the relay UE and the target communication device.
  • the target communication device when the first UE, i.e., the remote UE, communicates with the base station, the target communication device is the base station, and the distance between the relay UE and the target communication device refers to the distance between the relay UE and the base station.
  • the distance between the relay UE and the target communication device refers to the distance between the relay UE and the second UE, wherein the second UE has accessed the relay UE.
  • the distance between the relay UE and the target communication device refers to the distance between the relay UE and the third UE.
  • the relay UE receives the relay discovery request sent by the first UE; sends a first feedback message to the first UE, the first feedback message carries a first network parameter and a second network parameter, the first network parameter is used to indicate the signal quality of the relay UE, and the second network parameter is used to indicate the connection information between the relay UE and other communication devices.
  • the relay UE when the remote UE needs to select the target relay UE to be switched from multiple relay UEs, the relay UE can provide its own signal quality and the connection information with other communication devices to the remote UE, so that the remote UE can select the target relay UE to be switched from multiple relay UEs according to the signal quality of each relay UE and the connection information of each relay UE with other communication devices. Since not only the signal quality of the relay UE is referenced when selecting the target relay UE, but also the connection information between the relay UE and other communication devices is referenced, the remote UE can choose to connect to a suitable relay UE, thereby improving the success rate of the remote UE connecting to the relay UE.
  • the relay UE selection method provided in the embodiment of the present application may be executed by a relay UE selection device.
  • the relay UE selection device executing the relay UE selection method is taken as an example to illustrate the relay UE selection device provided in the embodiment of the present application.
  • FIG5 is a structural block diagram of a relay UE selection device provided by some embodiments of the present application, which is applied to a first UE.
  • the relay UE selection device 500 may include: a first sending module 501, a first receiving module 502, a determining module 503 and a switching module 504;
  • a first sending module 501 is used to send a relay discovery request to multiple relay UEs
  • a first receiving module 502 is used to receive multiple first feedback messages sent by multiple relay UEs in response to the relay discovery request, where the first feedback message carries a first network parameter and a second network parameter, where the first network parameter is used to indicate the signal quality of the relay UE, and the second network parameter is used to indicate the connection information between the relay UE and other communication devices;
  • a determination module 503, configured to determine a target relay UE from the plurality of relay UEs according to the first network parameter and the second network parameter;
  • the switching module 504 is configured to switch to the target relay UE.
  • the first UE sends a relay discovery request to multiple relay UEs; receives multiple first feedback messages sent by multiple relay UEs in response to the relay discovery request, the first feedback message carries a first network parameter and a second network parameter, the first network parameter is used to indicate the signal quality of the relay UE, and the second network parameter is used to indicate the connection information between the relay UE and other communication devices; determines the target relay UE from multiple relay UEs according to the first network parameter and the second network parameter; switches to the target relay UE.
  • the remote UE can determine the target relay UE to be switched from multiple relay UEs according to the signal quality of each relay UE and the connection information between each relay UE and other communication devices. Since not only the signal quality of the relay UE is referenced when selecting the target relay UE, but also the connection information between the relay UE and other communication devices is referenced, the remote UE can choose to connect to a suitable relay UE, thereby improving the success rate of the remote UE connecting to the relay UE.
  • the second network parameter includes at least one of the following: the number of second UEs accessing the relay UE, the distance between the relay UE and the target communication device; wherein the target communication device includes any one of the following: a base station, the second UE, a third UE.
  • the determining module 503 may include:
  • a first determining submodule configured to determine, according to the first network parameter, a plurality of first relay UEs from the plurality of relay UEs, wherein the signal quality of the first relay UE is greater than a first threshold;
  • a second determining submodule configured to determine at least one second relay UE from a plurality of the first relay UEs according to the second network parameter
  • the third determination submodule is used to determine a target relay UE from the at least one second relay UE.
  • the second network parameter includes: the number of second UEs accessing the relay UE;
  • the second determining submodule may include:
  • the first determining unit is configured to determine, from among the plurality of the first relay UEs, a first relay UE to which the number of second UE accesses is less than a second threshold, as a second relay UE.
  • the second network parameter includes: a distance between the relay UE and a target communication device;
  • the second determining submodule may include:
  • a first calculation unit configured to calculate a plurality of first distances between the first UE and the target communication device of each of the first relay UEs according to the distance between each of the first relay UEs and the target communication device of the first relay UE;
  • a second determination unit is used to determine at least one second relay UE from a plurality of the first relay UEs based on a plurality of the first distances, wherein the first distance corresponding to the at least one second relay UE is smaller than the first distance corresponding to a third relay UE, and the third relay UE is a relay UE among the first relay UEs except the second relay UE.
  • the second network parameter includes: the number of second UEs accessing the relay UE, and the distance between the relay UE and the target communication device;
  • the second determining submodule may include:
  • a third determining unit is configured to determine, from among the plurality of first relay UEs, a first relay UE to which the number of second UEs connected is less than a third threshold, as a fourth relay UE;
  • a second calculation unit configured to calculate a plurality of second distances between the first UE and the target communication device of each of the fourth relay UEs according to the distance between each of the fourth relay UEs and the target communication device of the fourth relay UE;
  • a fourth determination unit is used to determine at least one second relay UE from a plurality of fourth relay UEs based on a plurality of the second distances, wherein the second distance corresponding to the at least one second relay UE is smaller than the second distance corresponding to the fifth relay UE, and the fifth relay UE is a relay UE among the fourth relay UEs except the second relay UE.
  • the relay UE selection device 500 may further include:
  • a storage module is used to store the first network parameters and the second network parameters in multiple first feedback messages.
  • the switching module 504 may include:
  • a first sending submodule configured to send a connection request to the target relay UE
  • the receiving submodule is used to receive a second feedback message sent by the target relay UE in response to the connection request, where the second feedback message carries a target connection state value, and the target connection state value is used to indicate that the first UE has established a connection with the target relay UE.
  • the first sending module 501 may include:
  • a second sending submodule configured to send a relay discovery request to a plurality of relay UEs if no available network is detected when the first UE initiates a network attachment service
  • a third sending submodule configured to send a relay discovery request to multiple relay UEs if an available network is detected and the signal quality of the available network after attaching to the available network is lower than a fourth threshold when the first UE initiates a network attachment service;
  • the fourth sending submodule is used to send a relay discovery request to multiple relay UEs upon receiving a relay reselection indication from the relay UE currently accessed by the first UE, wherein the relay reselection indication is used to instruct the first UE to reselect a relay UE.
  • FIG6 is a structural block diagram of another relay UE selection device provided in some embodiments of the present application, which is applied to a relay UE.
  • the relay UE selection device 600 may include: a second receiving module 601 and a second sending module 602;
  • the second receiving module 601 is used to receive a relay discovery request sent by the first UE;
  • the second sending module 602 is used to send a first feedback message to the first UE, where the first feedback message carries a first network parameter and a second network parameter, where the first network parameter is used to indicate the signal quality of the relay UE, and the second network parameter is used to indicate the connection information between the relay UE and other communication devices.
  • the relay UE receives the relay discovery request sent by the first UE; and sends a first feedback message to the first UE, the first feedback message carries a first network parameter and a second network parameter, the first network parameter is used to represent the signal quality of the relay UE, and the second network parameter is used to represent the connection information between the relay UE and other communication devices.
  • the relay UE when the remote UE needs to select the target relay UE to be switched from multiple relay UEs, the relay UE can provide its own signal quality and connection information with other communication devices to the remote UE, so that the remote UE can select the target relay UE to be switched from multiple relay UEs based on the signal quality of each relay UE and the connection information of each relay UE with other communication devices.
  • the signal quality of the relay UE also refers to the connection information between the relay UE and other communication devices, so that the remote UE can choose to connect to a suitable relay UE, thereby improving the success rate of the remote UE connecting to the relay UE.
  • the second network parameter includes at least one of the following: the number of second UEs accessing the relay UE, the distance between the relay UE and the target communication device; wherein the target communication device includes any one of the following: a base station, the second UE, a third UE.
  • the relay UE selection device in the embodiment of the present application can be an electronic device that works independently, or it can be a component in the electronic device, such as an integrated circuit or a chip.
  • the electronic device can be a terminal, or it can be other devices other than the terminal.
  • the electronic device can be a mobile phone, a tablet computer, a laptop computer, a PDA, a vehicle-mounted electronic device, a mobile Internet device (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR) device, a robot, a wearable device, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a netbook, or a personal digital assistant (personal digital assistant, PDA), etc.
  • NAS Network Attached Storage
  • PC personal computer
  • TV television
  • teller machine a self-service machine
  • the relay UE selection device in the embodiment of the present application may be a device having an operating system.
  • the operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present application.
  • the relay UE selection device provided in the embodiment of the present application can implement each process implemented by the method embodiment described in Figure 2 or Figure 4. To avoid repetition, it will not be repeated here.
  • an embodiment of the present application also provides an electronic device 700, including a processor 701 and a memory 702, and the memory 702 stores a program or instruction that can be executed on the processor 701.
  • the program or instruction is executed by the processor 701
  • the various steps of the above-mentioned relay UE selection method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.
  • the electronic devices in the embodiments of the present application include the mobile electronic devices and non-mobile electronic devices mentioned above.
  • FIG8 is a schematic diagram of the hardware structure of an electronic device implementing various embodiments of the present application.
  • the electronic device 800 includes but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, a processor 810 and other components.
  • the electronic device 800 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 810 through a power management system, so that the power management system can manage charging, discharging, and power consumption management.
  • a power source such as a battery
  • the electronic device structure shown in FIG8 does not constitute a limitation on the electronic device, and the electronic device may include more or fewer components than shown, or combine certain components, or arrange components differently, which will not be described in detail here.
  • the electronic device 800 is a first UE
  • Processor 810 is used to send a relay discovery request to multiple relay UEs; receive multiple relay UEs' requests for the relay discovery request; A plurality of first feedback messages sent in response to a discovery request, wherein the first feedback message carries a first network parameter and a second network parameter, wherein the first network parameter is used to indicate the signal quality of the relay UE, and the second network parameter is used to indicate the connection information between the relay UE and other communication devices; a target relay UE is determined from the plurality of relay UEs according to the first network parameter and the second network parameter; and switching to the target relay UE.
  • the remote UE can determine the target relay UE to be switched from multiple relay UEs based on the signal quality of each relay UE and the connection information between each relay UE and other communication equipment. Since not only the signal quality of the relay UE but also the connection information between the relay UE and other communication equipment is referred to when selecting the target relay UE, the remote UE can choose to connect to a suitable relay UE, thereby improving the success rate of the remote UE connecting to the relay UE.
  • the second network parameter includes at least one of the following: the number of second UEs accessing the relay UE, the distance between the relay UE and the target communication device; wherein the target communication device includes any one of the following: a base station, the second UE, a third UE.
  • the processor 810 is further used to determine multiple first relay UEs from the multiple relay UEs based on the first network parameters, wherein the signal quality of the first relay UEs is greater than a first threshold; determine at least one second relay UE from the multiple first relay UEs based on the second network parameters; and determine a target relay UE from the at least one second relay UE.
  • the second network parameter includes: the number of second UEs accessing the relay UE;
  • the processor 810 is further configured to determine, from among the plurality of first relay UEs, a first relay UE to which the number of second UE accesses is less than a second threshold, as a second relay UE.
  • the second network parameter includes: a distance between the relay UE and a target communication device;
  • the processor 810 is further configured to calculate a plurality of first distances between the first UE and the target communication device of each of the first relay UEs according to the distance between each of the first relay UEs and the target communication device of the first relay UE; and to determine at least one second relay UE from the plurality of first relay UEs according to the plurality of the first distances, wherein the first distance corresponding to the at least one second relay UE is smaller than the first distance corresponding to the third relay UE, and the third relay UE is a relay UE among the first relay UEs except the second relay UE.
  • the second network parameter includes: the number of second UEs accessing the relay UE, and the distance between the relay UE and the target communication device;
  • the processor 810 is further used to determine, from among the multiple first relay UEs, a first relay UE whose number of second UE accesses is less than a third threshold as a fourth relay UE; calculate, based on the distance between each of the fourth relay UEs and the target communication device of the fourth relay UE, multiple second distances between the first UE and the target communication device of each of the fourth relay UEs; and determine, based on the multiple second distances, at least one second relay UE from the multiple fourth relay UEs, the second distance corresponding to the at least one second relay UE being less than the second distance corresponding to the fifth relay UE, and the fifth relay UE being a relay UE among the fourth relay UEs except the second relay UE.
  • the processor 810 is further configured to store the first feedback messages. a first network parameter and a second network parameter.
  • the processor 810 is also used to send a connection request to the target relay UE; receive a second feedback message sent by the target relay UE in response to the connection request, the second feedback message carrying a target connection status value, and the target connection status value is used to indicate that the first UE establishes a connection with the target relay UE.
  • the processor 810 is also used to, when the first UE initiates a network attachment service, if no available network is detected, send a relay discovery request to multiple relay UEs; or, when the first UE initiates a network attachment service, if an available network is detected and the signal quality of the available network after attaching to the available network is lower than a fourth threshold, send a relay discovery request to multiple relay UEs; or, when a relay reselection indication is received from a relay UE currently accessed by the first UE, send a relay discovery request to multiple relay UEs, wherein the relay reselection indication is used to instruct the first UE to reselect a relay UE.
  • the electronic device 800 is a relay UE
  • Processor 810 is used to receive a relay discovery request sent by a first UE; send a first feedback message to the first UE, the first feedback message carries a first network parameter and a second network parameter, the first network parameter is used to indicate the signal quality of the relay UE, and the second network parameter is used to indicate the connection information between the relay UE and other communication devices.
  • the relay UE when the remote UE needs to select the target relay UE to be switched from multiple relay UEs, the relay UE can provide its own signal quality and connection information with other communication devices to the remote UE, so that the remote UE can select the target relay UE to be switched from multiple relay UEs according to the signal quality of each relay UE and the connection information between each relay UE and other communication devices. Since not only the signal quality of the relay UE but also the connection information between the relay UE and other communication devices is referred to when selecting the target relay UE, the remote UE can choose to connect to a suitable relay UE, thereby improving the success rate of the remote UE connecting to the relay UE.
  • the second network parameter includes at least one of the following: the number of second UEs accessing the relay UE, the distance between the relay UE and the target communication device; wherein the target communication device includes any one of the following: a base station, the second UE, a third UE.
  • the input unit 804 may include a graphics processing unit (GPU) 8041 and a microphone 8042, and the graphics processor 8041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode.
  • the display unit 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc.
  • the user input unit 807 includes a touch panel 8071 and at least one of other input devices 8072.
  • the touch panel 8071 is also called a touch screen.
  • the touch panel 8071 may include two parts: a touch detection device and a touch controller.
  • Other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control key, a switch key, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.
  • the memory 809 can be used to store software programs and various data.
  • the memory 809 can mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area can store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.).
  • the memory 809 can include a volatile memory or a non-volatile memory, or the memory 809 can include a volatile and a non-volatile memory. Both memories.
  • the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM) or a flash memory.
  • the volatile memory can be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous connection dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM).
  • the memory 809 in the embodiment of the present application includes but is not limited to these and any other suitable types of memories.
  • the processor 810 may include one or more processing units; optionally, the processor 810 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 810.
  • An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored.
  • a program or instruction is stored.
  • the various processes of the above-mentioned relay UE selection method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.
  • the processor is the processor in the electronic device described in the above embodiment.
  • the readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.
  • An embodiment of the present application also provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned relay UE selection method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.
  • An embodiment of the present application also provides a computer program product, which is stored in a storage medium.
  • the program product is executed by at least one processor to implement the various processes of the above-mentioned relay UE selection method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • the technical solution of the present application can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, a disk, or an optical disk), and includes a number of instructions for enabling a terminal (such as a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present application.
  • a storage medium such as ROM/RAM, a disk, or an optical disk

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Abstract

本申请公开了一种中继UE选择方法、装置及电子设备，属于通信技术领域，该方法包括：第一UE向多个中继UE发送中继发现请求；接收多个中继UE对中继发现请求发送的多个第一反馈消息，第一反馈消息携带第一网络参数和第二网络参数，第一网络参数用于表示中继UE的信号质量，第二网络参数用于表示中继UE与其他通讯设备的连接信息；根据第一网络参数和第二网络参数，从多个中继UE中确定目标中继UE；切换至目标中继UE。

Description

中继UE选择方法、装置及电子设备
相关申请的交叉引用
本申请要求在2023年01月17日提交中国专利局、申请号为202310088364.9、名称为“中继UE选择方法、装置及电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请属于通信技术领域，具体涉及一种中继UE选择方法、装置及电子设备。
背景技术
为了扩展网络和旁链路的覆盖，提升功率效率以及支撑更广泛的应用和业务，第三代合作伙伴计划在R17开展了新空口旁链路中继技术的研究，引入了用户设备(User Equipment，UE)到网络的中继技术，当远端UE与基站间的链路质量变差时，远端UE可以选择合适的中继UE，由中继UE为远端UE提供网络服务，以保证远端UE业务的连续性。相关技术中，远端UE根据中继UE的信号质量，来选择需要要接入的中继UE。
发明内容
本申请实施例的目的是提供一种中继UE选择方法、装置及电子设备，能够使得远端UE选择连接至合适的中继UE。
第一方面，本申请实施例提供了一种中继UE选择方法，应用于第一UE，所述方法包括：
向多个中继UE发送中继发现请求；
接收多个所述中继UE对所述中继发现请求发送的多个第一反馈消息，所述第一反馈消息携带第一网络参数和第二网络参数，所述第一网络参数用于表示所述中继UE的信号质量，所述第二网络参数用于表示所述中继UE与其他通讯设备的连接信息；
根据所述第一网络参数和所述第二网络参数，从多个所述中继UE中确定目标中继UE；
切换至所述目标中继UE。
第二方面，本申请实施例提供了一种中继UE选择方法，应用于中继UE，所述方法包括：
接收第一UE发送的中继发现请求；
向所述第一UE发送第一反馈消息，所述第一反馈消息携带第一网络参数和第二网络参数，所述第一网络参数用于表示所述中继UE的信号质量，所述第二网络参数用于表示所述中继UE与其他通讯设备的连接信息。
第三方面，本申请实施例提供了一种中继UE选择装置，应用于第一UE，所述装置包括：
第一发送模块，用于向多个中继UE发送中继发现请求；
第一接收模块，用于接收多个所述中继UE对所述中继发现请求发送的多个第一反馈消息，所述第一反馈消息携带第一网络参数和第二网络参数，所述第一网络参数用于表示所述中继UE的信号质量，所述第二网络参数用于表示所述中继UE与其他通讯设备的连接信息；
确定模块，用于根据所述第一网络参数和所述第二网络参数，从多个所述中继UE中确定目标中继UE；
切换模块，用于切换至所述目标中继UE。
第四方面，本申请实施例提供了一种中继UE选择装置，应用于中继UE，所述装置包括：
第二接收模块，用于接收第一UE发送的中继发现请求；
第二发送模块，用于向所述第一UE发送第一反馈消息，所述第一反馈消息携带第一网络参数和第二网络参数，所述第一网络参数用于表示所述中继UE的信号质量，所述第二网络参数用于表示所述中继UE与其他通讯设备的连接信息。
第五方面，本申请实施例提供了一种电子设备，该电子设备包括处理器和存储器，所述存储器存储可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第一方面所述的中继UE选择方法的步骤。
第六方面，本申请实施例提供了一种电子设备，该电子设备包括处理器和存储器，所述存储器存储可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第二方面所述的中继UE选择方法的步骤。
第七方面，本申请实施例提供了一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如第一方面或第二方面所述的中继UE选择方法的步骤。
第八方面，本申请实施例提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如第一方面或第二方面所述的中继UE选择方法的步骤。
第九方面，本申请实施例提供一种计算机程序产品，该程序产品被存储在存储介质中，该程序产品被至少一个处理器执行以实现如第一方面或第二方面所述的中继UE选择方法的步骤。
在本申请实施例中，第一UE向多个中继UE发送中继发现请求；接收多个中继UE对中继发现请求发送的多个第一反馈消息，第一反馈消息携带第一网络参数和第二网络参数，第一网络参数用于表示中继UE的信号质量，第二网络参数用于表示中继UE与其他通讯设备的连接信息；根据第一网络参数和第二网络参数，从多个中继UE中确定目标中继UE；切换至目标中继UE。
可见，本申请实施例中，远端UE可以根据各中继UE的信号质量和各中继UE与其他通讯设备的连接信息，从多个中继UE中确定所要切换的目标中继UE，由于在选择目标中继UE时不仅参考中继UE的信号质量，同时还参考中继UE与其他通讯设备的连接信息，因此可以避免出现多个远端UE同时请求连接至同一中继UE的问题，提高远端UE连接至中继UE的成功率，使得远端UE选择连接至合适的中继UE。
附图说明
图1是相关技术中的UE到网络的中继技术的示例图；
图2是本申请实施例提供的一种中继UE选择方法的流程图；
图3是本申请实施例提供的中继UE选择方法的应用场景示例图；
图4是本申请实施例提供的另一种中继UE选择方法的流程图；
图5是本申请实施例提供的一种中继UE选择装置的结构框图；
图6是本申请实施例提供的另一种中继UE选择装置的结构框图；
图7是本申请实施例提供的一种电子设备的结构示意图；
图8是实现本申请各个实施例的一种电子设备的硬件结构示意图。
具体实施例
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”等所区分的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，字符“/”，一般表示前后关联对象是一种“或”的关系。
本申请实施例提供了一种中继UE选择方法、装置及电子设备。
下面结合附图，通过具体的实施例及其应用场景对本申请实施例提供的中继UE选择方法进行详细地说明。
UE到网络的中继技术(User Equipment-to-Network Relay，U2N Relay)：当远端UE与基站间的链路质量变差时，远端UE可以选择合适的中继UE，由中继UE为远端UE提供网络服务，以保证远端UE业务的连续性。
在一个例子中，图1示出了U2N Relay技术的一个应用场景，该应用场景中包括两个基站，分别为基站10和基站13，中继用户设备11处于基站10的信号覆盖范围内且信号质量较高，中继用户设备14处于基站13的信号覆盖范围内且信号质量较高。对于处于移动状态的远端用户设备12，远端用户设备12最初处于基站10的信号覆盖范围的边缘位置 且信号质量较差，为了能够保证远端用户设备12业务的连续性，远端用户设备12可以接入中继用户设备11，由中继用户设备11为远端用户设备12提供网络服务。之后，远端用户设备12移动至基站13的信号覆盖范围的边缘位置且信号质量较差，此时，可以重新选择中继用户设备，例如，选择接入中继用户设备14，由中继用户设备14为远端用户设备12提供网络服务。最后，远端用户设备12移动至基站13的信号覆盖范围内且信号质量较高，此时，选择接入基站13，由基站13为远端用户设备12提供网络服务。
需要说明的是，本申请实施例提供的中继UE选择方法适用于电子设备，在实际应用中，该电子设备可以包括：智能手机、平板电脑、个人数字助理等移动终端，本申请实施例对此不作限定。
图2是本申请实施例提供的一种中继UE选择方法的流程图，应用于第一UE，第一UE为远端UE，如图2所示，该方法可以包括以下步骤：步骤201、步骤202、步骤203和步骤204；
在步骤201中，向多个中继用户设备发送中继发现请求。
在一些实施例中，适用于以下应用场景：第一UE，即远端UE，当前处于无信号区域，远端UE借助中继UE进行上网业务或通话业务的场景。相应地，在第一UE发起网络附着业务的情况下，若未检测到可用网络，则向多个中继UE发送中继发现请求。
本申请实施例中，无信号区域指的是基站网络覆盖范围外的区域。
本申请实施例中，网络附着业务可以包括以下任一项：LTE附着，5G网络附着等。
本申请实施例中，远端UE发起网络附着业务时，会进行网络搜索，并进行网络附着。由于远端UE处于基站网络覆盖范围外，因此不会搜索到相应的可用网络，此时，可以触发对中继UE的选择，并切换至所选择的中继UE，由该中继UE为远端UE提供服务。
在一个例子中，远端UE处于基站网络覆盖范围外，当用户想使用该远端UE给其他用户打电话时，该远端UE可以接入中继UE，由该中继UE为该远端UE提供通话服务。
在一个例子中，远端UE处于基站网络覆盖范围外，当用户想使用该远端UE上网浏览新闻时，该远端UE可以接入中继UE，由该中继UE为该远端UE提供上网服务。
在一些实施例中，适用于以下应用场景：远端UE当前处于弱信号区域，远端UE借助中继UE进行上网业务或通话业务的场景。相应地，在第一UE发起网络附着业务的情况下，若检测到可用网络、且在附着到可用网络后该可用网络的信号质量低于第四阈值，则向多个中继UE发送中继发现请求。
本申请实施例中，弱信号区域指的是基站的边缘弱信号区域。
本申请实施例中，网络附着业务可以包括以下任一项：LTE附着，5G网络附着等。
本申请实施例中，远端UE发起网络附着业务时，会进行网络搜索，并进行网络附着。由于远端UE处于基站的边缘弱信号区域，因此可以搜索到相应的可用网络，在可用网络上执行相应附着网络流程，之后发起对可用网络的信号质量进行测量，如果可用网络的信号质量较差，则触发对中继UE的选择，并切换至所选择的中继UE，由该中继UE为远端UE提供服务。
在一个例子中，远端UE处于基站的边缘弱信号区域，当用户想使用该远端UE给其他用户打电话时，该远端UE可以接入中继UE，由该中继UE为该远端UE提供通话服务。
在一个例子中，远端UE处于基站的边缘弱信号区域，当用户想使用该远端UE上网浏览新闻时，该远端UE可以接入中继UE，由该中继UE为该远端UE提供上网服务。
在一些实施例中，适用于以下应用场景：远端UE当前接入的中继UE，指示远端UE进行中继重选。相应地，在接收到来自第一UE当前接入的中继UE的中继重选指示的情况下，向多个中继UE发送中继发现请求，其中，中继重选指示用于指示第一UE重新选择中继UE。
本申请实施例中，对于远端UE当前连接的中继UE，当该中继UE的Uu链路发生无线链路失败或移动等情况时，该中继UE可以指示远端UE进行中继重选，以确保远端UE的业务能够正常进行。
综上所述，本申请实施例中的中继UE选择方法，可以应用于多种通信场景，例如，远端UE处于基站覆盖范围外的场景、远端UE处于基站的边缘弱信号区域的场景，以及远端UE触发中继重选的场景，应用场景比较广泛。
本申请实施例中，远端UE可以通过广播的方式，向周围的多个中继UE发送中继发现请求，其中，该中继发现请求用于请求中继UE向上述远端UE反馈自身的第一网络参数和第二网络参数，该中继发现请求除携带该远端UE的标识之外，还可以携带该远端UE的位置信息。
在一个例子中，图3示出了本申请实施例的中继UE选择方法的一个应用场景，该应用场景中包括基站30、中继用户设备311、中继用户设备312,…,中继用户设备31n，以及远端用户设备32，其中，n为大于1的整数。
中继用户设备311～31n均处于基站30的信号覆盖范围内且信号质量较高，远端用户设备32处于基站30的信号覆盖范围的边缘位置且信号质量较差。
为了能够保证远端用户设备32业务的连续性，远端用户设备32可以从中继用户设备311～31n中选择一个并接入。在需要选择中继用户设备时，远端用户设备32可以首先通过广播的方式，向中继用户设备311～31n发送中继发现请求。
在步骤202中，接收多个中继用户设备对中继发现请求发送的多个第一反馈消息，第一反馈消息携带第一网络参数和第二网络参数，第一网络参数用于表示中继用户设备的信号质量，第二网络参数用于表示中继用户设备与其他通讯设备的连接信息。
本申请实施例中，一个第一反馈消息，对应于一个中继UE。
本申请实施例中，第一网络参数可以包括以下至少一项：参考信号接收功率(Reference Signal Receiving Power，RSRP)、信号参考接收质量(Reference Signal Received Quality，RSRQ)，以及信噪比(Signal To Noise Ratio，SNR)等。
为了确保远端UE可以选择合适的中继UE，本申请实施例中，引入了复杂网络中的“度”和“最短路径原理”，相应地，第二网络参数可以包括以下至少一项：接入中继UE的第二UE的个数(即“度”)、中继UE与目标通讯设备之间的距离(即“最短路径原理”)，其中， 目标通讯设备可以包括以下任一项：基站，第二UE，第三UE。
本申请实施例中，第二UE指的是中继UE连接的远端UE；接入中继UE的第二UE的个数指的是该中继UE连接的远端UE的个数。
本申请实施例中，中继UE与目标通讯设备之间的距离，指的是中继UE与目标通讯设备在地理位置上的距离。
本申请实施例中，当第一UE，即远端UE与基站通信时，目标通讯设备为基站，中继UE与目标通讯设备之间的距离指的是中继UE与基站之间的距离。当第一UE与第二UE通信时，中继UE与目标通讯设备之间的距离指的是中继UE与第二UE之间的距离，其中，第二UE已接入该中继UE。当第一UE与多跳情况下的第三UE通信时，中继UE与目标通讯设备之间的距离指的是中继UE与第三UE之间的距离。
在一个例子中，如图3所示，中继用户设备311～31n在接收到远端用户设备32发送的中继发现请求之后，中继用户设备311～31n均会向远端用户设备32返回一个第一反馈消息，例如，中继用户设备311返回一个第一反馈消息，该第一反馈消息携带中继用户设备311连接的远端用户设备的个数，以及中继用户设备311与基站30之间的距离；中继用户设备312返回一个第一反馈消息，该第一反馈消息携带中继用户设备312连接的远端UE的个数，以及中继用户设备312与基站30之间的距离；中继用户设备31n返回一个第一反馈消息，该第一反馈消息携带中继用户设备31n连接的远端用户设备的个数，以及中继用户设备31n与基站30之间的距离。
在步骤203中，根据第一网络参数和第二网络参数，从多个中继用户设备中确定目标中继用户设备。
区别于相关技术中仅根据第一网络参数从多个中继UE中选择目标中继UE，本申请实施例中，可以根据第一网络参数和第二网络参数，从多个中继UE中选择目标中继UE。
在一些实施例中，可以先基于第一网络参数，从多个中继UE中筛选出部分满足信号质量条件的中继UE，之后，基于第二网络参数，从满足信号质量条件的中继UE中筛选目标中继UE，相应地，上述步骤203包括以下步骤：步骤2031、步骤2032和步骤2033；
在步骤2031中，根据第一网络参数，从多个中继UE中确定多个第一中继UE，其中，第一中继UE的信号质量大于第一阈值。
在步骤2032中，根据第二网络参数，从多个第一中继UE中确定至少一个第二中继UE。
在步骤2033中，从至少一个第二中继UE中，确定目标中继UE。
本申请实施例中，当第二中继UE的个数为1时，直接将第二中继UE确定为目标中继UE；当第二中继UE的个数大于1时，随机选择一个第二中继UE确定为目标中继UE。
在一个例子中，如图3所示，根据信号质量，从中继用户设备311～31n中筛选出5个第一中继UE，之后根据第一中继UE与其他通讯设备的连接信息，从5个第一中继UE中筛选出3个第二中继UE，最后从3个第二中继UE中随机选择一个作为目标中继UE。
在步骤204中，切换至目标中继用户设备。
本申请实施例中，第一UE，即远端UE可以切换至目标中继UE，以进行过渡通信，进而确保远端UE的业务连续性和稳定性。
在一些实施例中，上述步骤204包括以下步骤：步骤2041和步骤2042；
在步骤2041中，向目标中继UE发送连接请求。
本申请实施例中，连接请求用于请求切换至目标中继UE。
在步骤2042中，接收目标中继UE对连接请求发送的第二反馈消息，第二反馈消息携带目标连接状态值，目标连接状态值用于表示第一UE与目标中继UE建立连接。
本申请实施例中，目标中继UE在接收到远端UE的连接请求之后，会尝试建立与远端UE的连接，如果成功建立连接，则向远端UE发送第二反馈消息，并携带目标连接状态值；远端UE接收到目标中继UE的第二反馈消息后，会解析出连接状态值，如果连接状态值为true或1，则表示远端UE与目标中继UE已经连接成功，可以进行通信；否则连接失败，需要重复上述步骤201至步骤203，以选择出合适的中继UE并成功接入。
本申请实施例中，远端UE在成功切换至目标中继UE之后，基于目标中继UE终端进行相应的通话业务或者上网业务。
由上述实施例可见，该实施例中，第一UE向多个中继UE发送中继发现请求；接收多个中继UE对中继发现请求发送的多个第一反馈消息，第一反馈消息携带第一网络参数和第二网络参数，第一网络参数用于表示中继UE的信号质量，第二网络参数用于表示中继UE与其他通讯设备的连接信息；根据第一网络参数和第二网络参数，从多个中继UE中确定目标中继UE；切换至目标中继UE。可见，本申请实施例中，远端UE可以根据各中继UE的信号质量和各中继UE与其他通讯设备的连接信息，从多个中继UE中确定所要切换的目标中继UE，由于在选择目标中继UE时不仅参考中继UE的信号质量，同时还参考中继UE与其他通讯设备的连接信息，因此可以使得远端UE选择连接至合适的中继UE，提高远端UE连接至中继UE的成功率。
在本申请提供的另一个实施例中，可以将中继UE连接的度(远端UE的个数)考虑进来，弥补相关技术中仅基于信号质量选择中继UE方法的不足，相应地，第二网络参数包括：接入中继UE的第二UE的个数，上述步骤2032，包括以下步骤：步骤301；
在步骤301中，从多个第一中继UE中，将第二UE接入个数小于第二阈值的第一中继UE，确定为第二中继UE。
在一个例子中，如图3所示，根据信号质量，从中继用户设备311～31n中筛选出5个第一中继UE，分别为中继用户设备311、中继用户设备312、中继用户设备313、中继用户设备314和中继用户设备315；之后根据中继用户设备311连接的其他远端UE的个数、中继用户设备312连接的其他远端UE的个数、中继用户设备313连接的其他远端UE的个数、中继用户设备314连接的其他远端UE的个数以及中继用户设备315连接的其他远端UE的个数，从用户设备311～315中筛选出3个第二中继UE，分别为中继用户设备313、中继用户设备314、中继用户设备315；最后从中继用户设备313～315中随机选择一个作为目标中继UE，例如，最终选择中继用户设备315作为目标中继UE。
可见，本申请实施例中，远端UE可以根据各中继UE的信号质量和各中继UE连接的其他远端UE的个数，从多个中继UE中选择所要切换的目标中继UE，由于在选择目标中继UE时不仅参考中继UE的信号质量，同时还参考中继UE连接的其他远端UE的个数，因此可以使得远端UE选择连接至合适的中继UE，提高远端UE连接至中继UE的成功率。
在本申请提供的另一个实施例中，可以基于最短路径原理，选择目标中继UE，相应地，第二网络参数包括：中继UE与目标通讯设备之间的距离，上述步骤2032，包括以下步骤：步骤302和步骤303；
在步骤302中，根据各第一中继UE与第一中继UE的目标通讯设备之间的距离，计算第一UE与各第一中继UE的目标通讯设备之间的多个第一距离。
本申请实施例中，对于每个第一中继UE，远端UE可以获取该远端UE与该第一中继UE之间的距离，根据该远端UE与该第一中继UE之间的距离和该第一中继UE与目标通讯设备之间的距离，计算该远端UE经该第一中继UE至该第一中继UE对应的目标通讯设备之间的第一距离。
在步骤303中，根据多个第一距离，从多个第一中继UE中确定至少一个第二中继UE，至少一个第二中继UE对应的第一距离小于第三中继UE对应的第一距离，第三中继UE为第一中继UE中除第二中继UE之外的中继UE。
本申请实施例中，可以对多个第一距离进行由小到大的排序，得到第一排序结果；从多个第一中继UE中，选择第一排序结果中排序在前M位的第一距离对应的第二中继UE，M为正整数。
在一个例子中，如图3所示，根据信号质量，从中继用户设备311～31n中筛选出5个第一中继UE，分别为中继用户设备311、中继用户设备312、中继用户设备313、中继用户设备314和中继用户设备315；之后对远端用户设备32与中继用户设备311之间的距离和中继用户设备311与基站30之间的距离进行求和，得到远端用户设备32经中继用户设备311至基站30的距离；同理，可以得到其他4个距离值；根据计算出的距离值，从中选择3个最小距离值的第二中继UE，分别为中继用户设备311、中继用户设备312和中继用户设备313；最后从中继用户设备311～313中随机选择一个作为目标中继UE，例如，最终选择中继用户设备311作为目标中继UE。
可见，本申请实施例中，远端UE可以根据各中继UE的信号质量和各中继UE与目标通讯设备之间的距离，从多个中继UE中选择所要切换的目标中继UE，由于在选择目标中继UE时不仅参考中继UE的信号质量，同时还参考远端UE经各中继UE至各目标通讯设备的距离，因此可以使得远端UE选择连接至合适的中继UE，提高远端UE连接至中继UE的成功率。此外，将远端UE经中继UE到目标通讯设备的较短路径选择出来，可以缩短信令传送时延，增加网络响应速度，进一步提高UE的网络适应性。
在本申请提供的另一个实施例中，第二网络参数包括：接入中继UE的第二UE的个数，以及中继UE与目标通讯设备之间的距离，相应地，上述步骤2032，包括以下步骤：步骤304、步骤305和步骤306。
在步骤304中，从多个第一中继UE中，将第二UE接入个数小于第三阈值的第一中继UE，确定为第四中继UE。
在步骤305中，根据各第四中继UE与第四中继UE的目标通讯设备之间的距离，计算第一UE与各第四中继UE的目标通讯设备之间的多个第二距离。
在步骤306中，根据多个第二距离，从多个第四中继UE中确定至少一个第二中继UE，至少一个第二中继UE对应的第二距离小于第五中继UE对应的第二距离，第五中继UE为第四中继UE中除第二中继UE之外的中继UE。
在一个例子中，存在10个中继UE的RSRQ满足门限阈值-12，从中选择RSRQ最大的4个第一中继UE，分别为a、b、c、d；之后，再检查a、b、c、d这4个第一中继UE连接的其他远端UE的个数，例如，c和d连接数少于5，a和b都大于5；之后，将连接度少于5的第四中继UE选择出来，分别为c和d；最后，比较c和d的路径长度，如果两个路径长度不同，则选择路径短的作为第二中继UE，如果两个路径长度相同，则两个都作为第二中继UE。
可见，本申请实施例中，远端UE可以根据各中继UE的信号质量、各中继UE连接的其他远端UE的个数，以及各中继UE与目标通讯设备之间的距离，从多个中继UE中选择所要切换的目标中继UE，由于在选择目标中继UE时不仅参考中继UE的信号质量，同时还参考中继UE连接的其他远端UE的个数和远端UE经各中继UE至各目标通讯设备的距离，因此可以使得远端UE选择连接至合适的中继UE，提高远端UE连接至中继UE的成功率。此外，将远端UE经中继UE到目标通讯设备的较短路径选择出来，可以缩短信令传送时延，增加网络响应速度，进一步提高UE的网络适应性。
在本申请提供的另一个实施例中，所提供的中继UE选择方法，在上述步骤202之后，还可以增加以下步骤：步骤205。
在步骤205中，存储多个第一反馈消息中的第一网络参数和第二网络参数。
可见，本申请实施例中，远端UE在接收到周围中继UE发送的第一反馈消息后，会将第一反馈消息中各中继UE的信号质量参数、连接度参数和目标通讯设备的距离参数，解析出来并保存在本地，进行实时更新，以方便后续使用时快速读取和比对。
图4是本申请的一些实施例提供的另一种中继UE选择方法的流程图，应用于中继UE，如图4所示，该方法可以包括以下步骤：步骤401和步骤402；
在步骤401中，接收第一用户设备发送的中继发现请求。
本申请实施例中的步骤401与图2所示实施例中的步骤201内容类似，在此不再赘述。
在步骤402中，向第一用户设备发送第一反馈消息，第一反馈消息携带第一网络参数和第二网络参数，第一网络参数用于表示中继用户设备的信号质量，第二网络参数用于表示中继用户设备与其他通讯设备的连接信息。
本申请实施例中，一个第一反馈消息，对应于一个中继UE。
本申请实施例中，第一网络参数可以包括以下至少一项：RSRP、RSRQ，以及SNR等。
为了确保远端UE可以选择合适的中继UE，本申请实施例中，引入了复杂网络中的“度”和“最短路径原理”，第二网络参数可以包括以下至少一项：接入中继UE的第二UE的个数(即“度”)，以及中继UE与目标通讯设备之间的距离(即“最短路径原理”)，其中，目标通讯设备可以包括以下任一项：基站，第二UE，第三UE。
本申请实施例中，第二UE指的是中继UE连接的远端UE；接入中继UE的第二UE的个数指的是该中继UE连接的远端UE的个数。
本申请实施例中，中继UE与目标通讯设备之间的距离，指的是中继UE与目标通讯设备在地理位置上的距离。
本申请实施例中，当第一UE，即远端UE与基站通信时，目标通讯设备为基站，中继UE与目标通讯设备之间的距离指的是该中继UE与基站之间的距离。当第一UE与第二UE通信时，中继UE与目标通讯设备之间的距离指的是该中继UE与第二UE之间的距离，其中，第二UE已接入该中继UE。当第一UE与多跳情况下的第三UE通信时，中继UE与目标通讯设备之间的距离指的是该中继UE与第三UE之间的距离。
由上述实施例可见，该实施例中，中继UE接收第一UE发送的中继发现请求；向第一UE发送第一反馈消息，第一反馈消息携带第一网络参数和第二网络参数，第一网络参数用于表示中继UE的信号质量，第二网络参数用于表示中继UE与其他通讯设备的连接信息。可见，本申请实施例中，在远端UE需要从多个中继UE中选择所要切换的目标中继UE时，中继UE可以将自身的信号质量和与其他通讯设备的连接信息一并提供给远端UE，使得远端UE可以根据各中继UE的信号质量和各中继UE与其他通讯设备的连接信息，从多个中继UE中选择所要切换的目标中继UE，由于在选择目标中继UE时不仅参考中继UE的信号质量，同时还参考中继UE与其他通讯设备的连接信息，因此可以使得远端UE选择连接至合适的中继UE，提高远端UE连接至中继UE的成功率。
本申请实施例提供的中继UE选择方法，执行主体可以为中继UE选择装置。本申请实施例中以中继UE选择装置执行中继UE选择方法为例，说明本申请实施例提供的中继UE选择装置。
图5是本申请的一些实施例提供的一种中继UE选择装置的结构框图，应用于第一UE，如图5所示，中继UE选择装置500，可以包括：第一发送模块501、第一接收模块502、确定模块503和切换模块504；
第一发送模块501，用于向多个中继UE发送中继发现请求；
第一接收模块502，用于接收多个所述中继UE对所述中继发现请求发送的多个第一反馈消息，所述第一反馈消息携带第一网络参数和第二网络参数，所述第一网络参数用于表示所述中继UE的信号质量，所述第二网络参数用于表示所述中继UE与其他通讯设备的连接信息；
确定模块503，用于根据所述第一网络参数和所述第二网络参数，从多个所述中继UE中确定目标中继UE；
切换模块504，用于切换至所述目标中继UE。
由上述实施例可见，该实施例中，第一UE向多个中继UE发送中继发现请求；接收多个中继UE对中继发现请求发送的多个第一反馈消息，第一反馈消息携带第一网络参数和第二网络参数，第一网络参数用于表示中继UE的信号质量，第二网络参数用于表示中继UE与其他通讯设备的连接信息；根据第一网络参数和第二网络参数，从多个中继UE中确定目标中继UE；切换至目标中继UE。可见，本申请实施例中，远端UE可以根据各中继UE的信号质量和各中继UE与其他通讯设备的连接信息，从多个中继UE中确定所要切换的目标中继UE，由于在选择目标中继UE时不仅参考中继UE的信号质量，同时还参考中继UE与其他通讯设备的连接信息，因此可以使得远端UE选择连接至合适的中继UE，提高远端UE连接至中继UE的成功率。
可选地，作为一个实施例，所述第二网络参数包括以下至少一项：接入所述中继UE的第二UE的个数、所述中继UE与目标通讯设备之间的距离；其中，所述目标通讯设备包括以下任一项：基站，所述第二UE，第三UE。
可选地，作为一个实施例，所述确定模块503，可以包括：
第一确定子模块，用于根据所述第一网络参数，从多个所述中继UE中确定多个第一中继UE，其中，所述第一中继UE的信号质量大于第一阈值；
第二确定子模块，用于根据所述第二网络参数，从多个所述第一中继UE中确定至少一个第二中继UE；
第三确定子模块，用于从所述至少一个第二中继UE中，确定目标中继UE。
可选地，作为一个实施例，所述第二网络参数包括：接入所述中继UE的第二UE的个数；
所述第二确定子模块，可以包括：
第一确定单元，用于从多个所述第一中继UE中，将第二UE接入个数小于第二阈值的第一中继UE，确定为第二中继UE。
可选地，作为一个实施例，所述第二网络参数包括：所述中继UE与目标通讯设备之间的距离；
所述第二确定子模块，可以包括：
第一计算单元，用于根据各所述第一中继UE与所述第一中继UE的目标通讯设备之间的距离，计算所述第一UE与各所述第一中继UE的目标通讯设备之间的多个第一距离；
第二确定单元，用于根据多个所述第一距离，从多个所述第一中继UE中确定至少一个第二中继UE，所述至少一个第二中继UE对应的第一距离小于第三中继UE对应的第一距离，所述第三中继UE为所述第一中继UE中除所述第二中继UE之外的中继UE。
可选地，作为一个实施例，所述第二网络参数包括：接入所述中继UE的第二UE的个数，以及所述中继UE与目标通讯设备之间的距离；
所述第二确定子模块，可以包括：
第三确定单元，用于从多个所述第一中继UE中，将第二UE接入个数小于第三阈值的第一中继UE，确定为第四中继UE；
第二计算单元，用于根据各所述第四中继UE与所述第四中继UE的目标通讯设备之间的距离，计算所述第一UE与各所述第四中继UE的目标通讯设备之间的多个第二距离；
第四确定单元，用于根据多个所述第二距离，从多个所述第四中继UE中确定至少一个第二中继UE，所述至少一个第二中继UE对应的第二距离小于第五中继UE对应的第二距离，所述第五中继UE为所述第四中继UE中除所述第二中继UE之外的中继UE。
可选地，作为一个实施例，所述中继UE选择装置500，还可以包括：
存储模块，用于存储多个所述第一反馈消息中的所述第一网络参数和所述第二网络参数。
可选地，作为一个实施例，所述切换模块504，可以包括：
第一发送子模块，用于向所述目标中继UE发送连接请求；
接收子模块，用于接收所述目标中继UE对所述连接请求发送的第二反馈消息，所述第二反馈消息携带目标连接状态值，所述目标连接状态值用于表示所述第一UE与所述目标中继UE建立连接。
可选地，作为一个实施例，所述第一发送模块501，可以包括：
第二发送子模块，用于在所述第一UE发起网络附着业务的情况下，若未检测到可用网络，则向多个中继UE发送中继发现请求；或者，
第三发送子模块，用于在所述第一UE发起网络附着业务的情况下，若检测到可用网络、且在附着到所述可用网络后所述可用网络的信号质量低于第四阈值，则向多个中继UE发送中继发现请求；或者，
第四发送子模块，用于在接收到来自所述第一UE当前接入的中继UE的中继重选指示的情况下，向多个中继UE发送中继发现请求，其中，所述中继重选指示用于指示所述第一UE重新选择中继UE。
图6是本申请的一些实施例提供的另一种中继UE选择装置的结构框图，应用于中继UE，如图6所示，中继UE选择装置600，可以包括：第二接收模块601和第二发送模块602；
第二接收模块601，用于接收第一UE发送的中继发现请求；
第二发送模块602，用于向所述第一UE发送第一反馈消息，所述第一反馈消息携带第一网络参数和第二网络参数，所述第一网络参数用于表示所述中继UE的信号质量，所述第二网络参数用于表示所述中继UE与其他通讯设备的连接信息。
由上述实施例可见，该实施例中，中继UE接收第一UE发送的中继发现请求；向第一UE发送第一反馈消息，第一反馈消息携带第一网络参数和第二网络参数，第一网络参数用于表示中继UE的信号质量，第二网络参数用于表示中继UE与其他通讯设备的连接信息。可见，本申请实施例中，在远端UE需要从多个中继UE中选择所要切换的目标中继UE时，中继UE可以将自身的信号质量和与其他通讯设备的连接信息一并提供给远端UE，使得远端UE可以根据各中继UE的信号质量和各中继UE与其他通讯设备的连接信息，从多个中继UE中选择所要切换的目标中继UE，由于在选择目标中继UE时不仅参考 中继UE的信号质量，同时还参考中继UE与其他通讯设备的连接信息，因此可以使得远端UE选择连接至合适的中继UE，提高远端UE连接至中继UE的成功率。
可选地，作为一个实施例，所述第二网络参数包括以下至少一项：接入所述中继UE的第二UE的个数、所述中继UE与目标通讯设备之间的距离；其中，所述目标通讯设备包括以下任一项：基站，所述第二UE，第三UE。
本申请实施例中的中继UE选择装置可以是独立工作的电子设备，也可以是电子设备中的部件，例如集成电路或芯片。该电子设备可以是终端，也可以为除终端之外的其他设备。示例性的，电子设备可以为手机、平板电脑、笔记本电脑、掌上电脑、车载电子设备、移动上网装置(Mobile Internet Device，MID)、增强现实(augmented reality，AR)/虚拟现实(virtual reality，VR)设备、机器人、可穿戴设备、超级移动个人计算机(ultra-mobile personal computer，UMPC)、上网本、或者个人数字助理(personal digital assistant，PDA)等，还可以为服务器、网络附属存储器(Network Attached Storage，NAS)、个人计算机(personal computer，PC)、电视机(television，TV)、柜员机或者自助机等，本申请实施例不作具体限定。
本申请实施例中的中继UE选择装置可以为具有操作系统的装置。该操作系统可以为安卓(Android)操作系统，可以为iOS操作系统，还可以为其他可能的操作系统，本申请实施例不作具体限定。
本申请实施例提供的中继UE选择装置能够实现图2或图4所述方法实施例实现的各个过程，为避免重复，这里不再赘述。
可选地，如图7所示，本申请实施例还提供了一种电子设备700，包括处理器701和存储器702，存储器702上存储有可在所述处理器701上运行的程序或指令，该程序或指令被处理器701执行时实现上述中继UE选择方法实施例的各个步骤，且能达到相同的技术效果，为避免重复，这里不再赘述。
需要说明的是，本申请实施例中的电子设备包括上述所述的移动电子设备和非移动电子设备。
图8是实现本申请各个实施例的一种电子设备的硬件结构示意图。
该电子设备800包括但不限于：射频单元801、网络模块802、音频输出单元803、输入单元804、传感器805、显示单元806、用户输入单元807、接口单元808、存储器809以及处理器810等部件。
本领域技术人员可以理解，电子设备800还可以包括给各个部件供电的电源(比如电池)，电源可以通过电源管理系统与处理器810逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图8中示出的电子设备结构并不构成对电子设备的限定，电子设备可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置，在此不再赘述。
在一些实施例中，电子设备800为第一UE；
处理器810，用于向多个中继UE发送中继发现请求；接收多个所述中继UE对所述中 继发现请求发送的多个第一反馈消息，所述第一反馈消息携带第一网络参数和第二网络参数，所述第一网络参数用于表示所述中继UE的信号质量，所述第二网络参数用于表示所述中继UE与其他通讯设备的连接信息；根据所述第一网络参数和所述第二网络参数，从多个所述中继UE中确定目标中继UE；切换至所述目标中继UE。
可见，本申请实施例中，远端UE可以根据各中继UE的信号质量和各中继UE与其他通讯设备的连接信息，从多个中继UE中确定所要切换的目标中继UE，由于在选择目标中继UE时不仅参考中继UE的信号质量，同时还参考中继UE与其他通讯设备的连接信息，因此可以使得远端UE选择连接至合适的中继UE，提高远端UE连接至中继UE的成功率。
可选地，作为一个实施例，所述第二网络参数包括以下至少一项：接入所述中继UE的第二UE的个数、所述中继UE与目标通讯设备之间的距离；其中，所述目标通讯设备包括以下任一项：基站，所述第二UE，第三UE。
可选地，作为一个实施例，处理器810，还用于根据所述第一网络参数，从多个所述中继UE中确定多个第一中继UE，其中，所述第一中继UE的信号质量大于第一阈值；根据所述第二网络参数，从多个所述第一中继UE中确定至少一个第二中继UE；从所述至少一个第二中继UE中，确定目标中继UE。
可选地，作为一个实施例，所述第二网络参数包括：接入所述中继UE的第二UE的个数；
处理器810，还用于从多个所述第一中继UE中，将第二UE接入个数小于第二阈值的第一中继UE，确定为第二中继UE。
可选地，作为一个实施例，所述第二网络参数包括：所述中继UE与目标通讯设备之间的距离；
处理器810，还用于根据各所述第一中继UE与所述第一中继UE的目标通讯设备之间的距离，计算所述第一UE与各所述第一中继UE的目标通讯设备之间的多个第一距离；根据多个所述第一距离，从多个所述第一中继UE中确定至少一个第二中继UE，所述至少一个第二中继UE对应的第一距离小于第三中继UE对应的第一距离，所述第三中继UE为所述第一中继UE中除所述第二中继UE之外的中继UE。
可选地，作为一个实施例，所述第二网络参数包括：接入所述中继UE的第二UE的个数，以及所述中继UE与目标通讯设备之间的距离；
处理器810，还用于从多个所述第一中继UE中，将第二UE接入个数小于第三阈值的第一中继UE，确定为第四中继UE；根据各所述第四中继UE与所述第四中继UE的目标通讯设备之间的距离，计算所述第一UE与各所述第四中继UE的目标通讯设备之间的多个第二距离；根据多个所述第二距离，从多个所述第四中继UE中确定至少一个第二中继UE，所述至少一个第二中继UE对应的第二距离小于第五中继UE对应的第二距离，所述第五中继UE为所述第四中继UE中除所述第二中继UE之外的中继UE。
可选地，作为一个实施例，处理器810，还用于存储多个所述第一反馈消息中的所述 第一网络参数和所述第二网络参数。
可选地，作为一个实施例，处理器810，还用于向所述目标中继UE发送连接请求；接收所述目标中继UE对所述连接请求发送的第二反馈消息，所述第二反馈消息携带目标连接状态值，所述目标连接状态值用于表示所述第一UE与所述目标中继UE建立连接。
可选地，作为一个实施例，处理器810，还用于在所述第一UE发起网络附着业务的情况下，若未检测到可用网络，则向多个中继UE发送中继发现请求；或者，在所述第一UE发起网络附着业务的情况下，若检测到可用网络、且在附着到所述可用网络后所述可用网络的信号质量低于第四阈值，则向多个中继UE发送中继发现请求；或者，在接收到来自所述第一UE当前接入的中继UE的中继重选指示的情况下，向多个中继UE发送中继发现请求，其中，所述中继重选指示用于指示所述第一UE重新选择中继UE。
在一些实施例中，电子设备800为中继UE；
处理器810，用于接收第一UE发送的中继发现请求；向所述第一UE发送第一反馈消息，所述第一反馈消息携带第一网络参数和第二网络参数，所述第一网络参数用于表示所述中继UE的信号质量，所述第二网络参数用于表示所述中继UE与其他通讯设备的连接信息。
可见，本申请实施例中，在远端UE需要从多个中继UE中选择所要切换的目标中继UE时，中继UE可以将自身的信号质量和与其他通讯设备的连接信息一并提供给远端UE，使得远端UE可以根据各中继UE的信号质量和各中继UE与其他通讯设备的连接信息，从多个中继UE中选择所要切换的目标中继UE，由于在选择目标中继UE时不仅参考中继UE的信号质量，同时还参考中继UE与其他通讯设备的连接信息，因此可以使得远端UE选择连接至合适的中继UE，提高远端UE连接至中继UE的成功率。
可选地，作为一个实施例，所述第二网络参数包括以下至少一项：接入所述中继UE的第二UE的个数、所述中继UE与目标通讯设备之间的距离；其中，所述目标通讯设备包括以下任一项：基站，所述第二UE，第三UE。
应理解的是，本申请实施例中，输入单元804可以包括图形处理器(Graphics Processing Unit，GPU)8041和麦克风8042，图形处理器8041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元806可包括显示面板8061，可以采用液晶显示器、有机发光二极管等形式来配置显示面板8061。用户输入单元807包括触控面板8071以及其他输入设备8072中的至少一种。触控面板8071，也称为触摸屏。触控面板8071可包括触摸检测装置和触摸控制器两个部分。其他输入设备8072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
存储器809可用于存储软件程序以及各种数据。存储器809可主要包括存储程序或指令的第一存储区和存储数据的第二存储区，其中，第一存储区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外，存储器809可以包括易失性存储器或非易失性存储器，或者，存储器809可以包括易失性和非易失性 存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synch link DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本申请实施例中的存储器809包括但不限于这些和任意其它适合类型的存储器。
处理器810可包括一个或多个处理单元；可选的，处理器810集成应用处理器和调制解调处理器，其中，应用处理器主要处理涉及操作系统、用户界面和应用程序等的操作，调制解调处理器主要处理无线通信信号，如基带处理器。可以理解的是，上述调制解调处理器也可以不集成到处理器810中。
本申请实施例还提供了一种可读存储介质，所述可读存储介质上存储有程序或指令，该程序或指令被处理器执行时实现上述中继UE选择方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
其中，所述处理器为上述实施例中所述的电子设备中的处理器。所述可读存储介质，包括计算机可读存储介质，如计算机只读存储器ROM、随机存取存储器RAM、磁碟或者光盘等。
本申请实施例还提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现上述中继UE选择方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片、系统芯片、芯片系统或片上系统芯片等。
本申请实施例还提供了一种计算机程序产品，该程序产品被存储在存储介质中，该程序产品被至少一个处理器执行以实现如上述中继UE选择方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参 照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以计算机软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(例如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(例如可以是手机，计算机，服务器，或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (17)

  1. 一种中继用户设备UE选择方法，应用于第一UE，其中，所述方法包括：
    向多个中继UE发送中继发现请求；
    接收多个所述中继UE对所述中继发现请求发送的多个第一反馈消息，所述第一反馈消息携带第一网络参数和第二网络参数，所述第一网络参数用于表示所述中继UE的信号质量，所述第二网络参数用于表示所述中继UE与其他通讯设备的连接信息；
    根据所述第一网络参数和所述第二网络参数，从多个所述中继UE中确定目标中继UE；
    切换至所述目标中继UE。
  2. 根据权利要求1所述的方法，其中，所述第二网络参数包括以下至少一项：接入所述中继UE的第二UE的个数、所述中继UE与目标通讯设备之间的距离；
    其中，所述目标通讯设备包括以下任一项：基站，所述第二UE，第三UE。
  3. 根据权利要求1或2所述的方法，其中，所述根据所述第一网络参数和所述第二网络参数，从多个所述中继UE中确定目标中继UE，包括：
    根据所述第一网络参数，从多个所述中继UE中确定多个第一中继UE，其中，所述第一中继UE的信号质量大于第一阈值；
    根据所述第二网络参数，从多个所述第一中继UE中确定至少一个第二中继UE；
    从所述至少一个第二中继UE中，确定目标中继UE。
  4. 根据权利要求3所述的方法，其中，所述第二网络参数包括：接入所述中继UE的第二UE的个数；
    所述根据所述第二网络参数，从多个所述第一中继UE中确定至少一个第二中继UE，包括：
    从多个所述第一中继UE中，将第二UE接入个数小于第二阈值的第一中继UE，确定为第二中继UE。
  5. 根据权利要求3所述的方法，其中，所述第二网络参数包括：所述中继UE与目标通讯设备之间的距离；
    所述根据所述第二网络参数，从多个所述第一中继UE中确定至少一个第二中继UE，包括：
    根据各所述第一中继UE与所述第一中继UE的目标通讯设备之间的距离，计算所述第一UE与各所述第一中继UE的目标通讯设备之间的多个第一距离；
    根据多个所述第一距离，从多个所述第一中继UE中确定至少一个第二中继UE，所述至少一个第二中继UE对应的第一距离小于第三中继UE对应的第一距离，所述第三中继UE为所述第一中继UE中除所述第二中继UE之外的中继UE。
  6. 根据权利要求3所述的方法，其中，所述第二网络参数包括：接入所述中继UE的第二UE的个数，以及所述中继UE与目标通讯设备之间的距离；
    所述根据所述第二网络参数，从多个所述第一中继UE中确定至少一个第二中继UE，包括：
    从多个所述第一中继UE中，将第二UE接入个数小于第三阈值的第一中继UE，确定为第四中继UE；
    根据各所述第四中继UE与所述第四中继UE的目标通讯设备之间的距离，计算所述第一UE与各所述第四中继UE的目标通讯设备之间的多个第二距离；
    根据多个所述第二距离，从多个所述第四中继UE中确定至少一个第二中继UE，所述至少一个第二中继UE对应的第二距离小于第五中继UE对应的第二距离，所述第五中继UE为所述第四中继UE中除所述第二中继UE之外的中继UE。
  7. 根据权利要求1所述的方法，其中，所述接收多个所述中继UE对所述中继发现请求发送的多个第一反馈消息之后，所述方法还包括：
    存储多个所述第一反馈消息中的所述第一网络参数和所述第二网络参数。
  8. 根据权利要求1所述的方法，其中，所述切换至所述目标中继UE，包括：
    向所述目标中继UE发送连接请求；
    接收所述目标中继UE对所述连接请求发送的第二反馈消息，所述第二反馈消息携带目标连接状态值，所述目标连接状态值用于表示所述第一UE与所述目标中继UE建立连接。
  9. 根据权利要求1所述的方法，其中，所述向多个中继UE发送中继发现请求，包括：
    在所述第一UE发起网络附着业务的情况下，若未检测到可用网络，则向多个中继UE发送中继发现请求；或者，
    在所述第一UE发起网络附着业务的情况下，若检测到可用网络、且在附着到所述可用网络后所述可用网络的信号质量低于第四阈值，则向多个中继UE发送中继发现请求；或者，
    在接收到来自所述第一UE当前接入的中继UE的中继重选指示的情况下，向多个中继UE发送中继发现请求，其中，所述中继重选指示用于指示所述第一UE重新选择中继UE。
  10. 一种中继UE选择方法，应用于中继UE，其中，所述方法包括：
    接收第一UE发送的中继发现请求；
    向所述第一UE发送第一反馈消息，所述第一反馈消息携带第一网络参数和第二网络参数，所述第一网络参数用于表示所述中继UE的信号质量，所述第二网络参数用于表示所述中继UE与其他通讯设备的连接信息。
  11. 根据权利要求10所述的方法，其中，所述第二网络参数包括以下至少一项：接入所述中继UE的第二UE的个数、所述中继UE与目标通讯设备之间的距离；
    其中，所述目标通讯设备包括以下任一项：基站，所述第二UE，第三UE。
  12. 一种中继UE选择装置，应用于第一UE，其中，所述装置包括：
    第一发送模块，用于向多个中继UE发送中继发现请求；
    第一接收模块，用于接收多个所述中继UE对所述中继发现请求发送的多个第一反馈消息，所述第一反馈消息携带第一网络参数和第二网络参数，所述第一网络参数用于表示 所述中继UE的信号质量，所述第二网络参数用于表示所述中继UE与其他通讯设备的连接信息；
    确定模块，用于根据所述第一网络参数和所述第二网络参数，从多个所述中继UE中确定目标中继UE；
    切换模块，用于切换至所述目标中继UE。
  13. 一种中继UE选择装置，应用于中继UE，其中，所述装置包括：
    第二接收模块，用于接收第一UE发送的中继发现请求；
    第二发送模块，用于向所述第一UE发送第一反馈消息，所述第一反馈消息携带第一网络参数和第二网络参数，所述第一网络参数用于表示所述中继UE的信号质量，所述第二网络参数用于表示所述中继UE与其他通讯设备的连接信息。
  14. 一种电子设备，其中，所述电子设备包括处理器和存储器，所述存储器存储可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求1至9任一项所述的中继UE选择方法的步骤，或者实现如权利要求10至11任一项所述的中继UE选择方法的步骤。
  15. 一种芯片，其中，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如权利要求1至9任一项所述的中继UE选择方法的步骤，或者实现如权利要求10至11任一项所述的中继UE选择方法的步骤。
  16. 一种计算机程序产品，其中，所述程序产品被存储在非易失的存储介质中，所述程序产品被至少一个处理器执行以实现如权利要求1至9任一项所述的中继UE选择方法的步骤，或者实现如权利要求10至11任一项所述的中继UE选择方法的步骤。
  17. 一种电子设备，其中，所述电子设备被配置为实现如权利要求1至9任一项所述的中继UE选择方法的步骤，或者实现如权利要求10至11任一项所述的中继UE选择方法的步骤。
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