WO2016101808A1 - Procédé pour réaliser une sélection de relais de communication de dispositif à dispositif, nœud de commande de réseau et équipement d'utilisateur - Google Patents

Procédé pour réaliser une sélection de relais de communication de dispositif à dispositif, nœud de commande de réseau et équipement d'utilisateur Download PDF

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Publication number
WO2016101808A1
WO2016101808A1 PCT/CN2015/097471 CN2015097471W WO2016101808A1 WO 2016101808 A1 WO2016101808 A1 WO 2016101808A1 CN 2015097471 W CN2015097471 W CN 2015097471W WO 2016101808 A1 WO2016101808 A1 WO 2016101808A1
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WIPO (PCT)
Prior art keywords
relay
user equipment
node
relay node
related information
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Application number
PCT/CN2015/097471
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English (en)
Chinese (zh)
Inventor
陈琳
吴栓栓
戴博
郁光辉
谢峰
黄莹
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201510251322.8A external-priority patent/CN106211026B/zh
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP20207860.6A priority Critical patent/EP3799453A1/fr
Priority to EP15871876.7A priority patent/EP3226583B1/fr
Priority to US15/538,661 priority patent/US10334563B2/en
Publication of WO2016101808A1 publication Critical patent/WO2016101808A1/fr
Priority to US16/424,339 priority patent/US10856266B2/en
Priority to US17/092,026 priority patent/US20210058902A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor

Definitions

  • the present application relates to, but is not limited to, D2D communication technology, and in particular, to a method for implementing device direct relay selection, a network control node, and a user equipment.
  • the D2D technology can work in the licensed or unlicensed frequency band, and allows multiple D2D-enabled user equipments, that is, D2D User Equipment (D2D User Equipment, also known as ProSe enabled UE) in the network infrastructure or none.
  • D2D User Equipment also known as ProSe enabled UE
  • Direct discovery/direct communication in the case of network infrastructure.
  • Figure 1 is a schematic diagram of related D2D application scenarios.
  • scenario 1 user equipment performs data interaction under the coverage of the cellular network, and user plane data does not pass through the network infrastructure; scenario 2
  • the UE relay transmission in the weak/uncovered area allows the user equipment with poor signal quality (such as UE4 in the figure) to communicate with the network through other user equipments (such as UE3) with network coverage nearby, which can help the operator.
  • scenario 3 direct communication between devices, mainly used in earthquakes or emergencies, when the cellular network is not working properly, the control plane and user plane between UE5, UE6 and UE7 in the figure are not One-hop or multi-hop data communication for network infrastructure.
  • the embodiments of the present invention provide a method for implementing a device through relay selection, a network control node, and a user equipment, which can provide a solution for the selection of the relay nodes in scenario 2 and scenario 3.
  • An embodiment of the present application provides a method for implementing device direct relay selection, including:
  • the user equipment sends the relay related information for determining the relay node to the network control node;
  • the user equipment if determined as a relay node, receives the device pass-through relay configuration information sent by the network control node.
  • the relay related information includes:
  • the user equipment supports a device pass-through relay indication; and/or,
  • the user equipment geographic location and/or,
  • the search relay information sent by the user equipment that the user equipment listens to find the relay node and/or,
  • the relay information sent by the relay node monitored by the user equipment and/or,
  • the processing capability of the user equipment and/or,
  • the user equipment cellular service traffic and/or,
  • the through traffic of the user equipment and/or,
  • the relay load status of the user equipment is the relay load status of the user equipment.
  • the network control node comprises: a base station, and/or a proximity service function ProSe function and/or other network elements that perform a device pass-through relay selection function.
  • the relay available period of the user equipment includes: the user equipment may be used as a time interval of the device through relay;
  • the relay related information includes a relay type that is of interest to the user equipment, and/or supported
  • the relay type includes: a relay of the user equipment UE to the UE, and/or a relay of the UE to the network;
  • the measurement result includes: a reference signal received power RSRP of the user equipment to the local cell and/or the neighboring cell, and/or Or reference signal received quality RSRQ, and/or channel state information reference signal received power CSI-RSRP, and/or channel state information reference signal received quality CSI-RSRQ measured value;
  • the relay related information includes relay information sent by the relay node that is monitored by the user equipment
  • the relay information sent by the relay node that is monitored by the user equipment includes whether the user equipment monitors the relay information sent by the adjacent device through the relay user equipment.
  • the relay information monitored by the user equipment further includes a relay class that listens to the neighboring device through the relay user equipment. Type, and/or relay information measurement results for the adjacent device through the relay user equipment;
  • the relay related information includes a mobile state indication of the user equipment
  • the movement status indication includes a movement speed indication
  • the relay related information includes a relay transmission and reception capability of the user equipment
  • the relaying and receiving capability of the user equipment includes: whether the user equipment has dedicated transceiver hardware for relaying transceivers and/or whether the user equipment supports parallel device direct transmission and cellular data reception/transmission;
  • the relay related information includes processing capabilities of the user equipment
  • the processing capability of the user equipment includes: a hardware configuration capability or a capability level of the user equipment, and represents a number of user equipment CPUs, and/or a primary frequency, and/or a memory difference or a data packet processing efficiency.
  • the relay type of the relay node and/or,
  • the relay load status of the relay node and/or,
  • the serving cell identity of the relay node is the serving cell identity of the relay node.
  • the user equipment can discover the node corresponding to the communication target identifier of the user equipment that searches for the relay node; and/or,
  • the relay related information includes:
  • the measurement result of the user equipment to the local cell and the neighboring cell and/or,
  • the search relay information sent by the user equipment that the user equipment listens to find the relay node and/or,
  • the relay information sent by the relay node monitored by the user equipment and/or,
  • the processing capability of the user equipment and/or,
  • the measurement result includes: a reference signal received power RSRP of the user equipment to the local cell and/or the neighboring cell, and/or Or reference signal received quality RSRQ, and/or channel state information reference signal received power CSI-RSRP, and/or channel state information reference signal received quality CSI-RSRQ measured value;
  • the relay information monitored by the user equipment further includes monitoring the relay type of the adjacent device through the relay user equipment, and/or The measurement result of the relay information of the adjacent device through the relay user equipment;
  • the relay related information includes a mobile state indication of the user equipment
  • the relay related information includes a relay transmission and reception capability of the user equipment
  • the relaying and receiving capability of the user equipment includes: whether the user equipment has dedicated transceiver hardware for relaying and receiving, and/or whether the user equipment supports parallel device direct communication and cellular data transmission and reception;
  • the processing capability of the user equipment includes: a hardware configuration capability or a capability level of the user equipment, and represents a number of user equipment CPUs, and/or a primary frequency, and/or a memory difference or a data packet processing efficiency.
  • the relay charging requirement of the user equipment includes: price compensation per data unit/time unit desired by the user equipment for relaying data forwarding;
  • the relay related information includes the cellular service traffic of the user equipment
  • the user equipment cellular service traffic includes: current uplink, and/or downlink cellular traffic of the user equipment
  • the direct service traffic of the user equipment includes: current device direct discovery of the user equipment, and/or communication data traffic;
  • the relay load status of the user equipment includes: relaying data traffic of the user equipment, and/or a load indication relayed by the user equipment. ;
  • the relay information sent by the relay node that is monitored by the user equipment includes:
  • the relay node identifier and/or,
  • the relay type of the relay node and/or,
  • the processing capability of the relay node and/or,
  • Direct traffic of the relay node and/or,
  • the serving cell identity of the relay node is the serving cell identity of the relay node.
  • the relay related information includes the looking for relay information that is monitored by the user equipment
  • the searching for relay information monitored by the user equipment includes:
  • the number of the user equipments that are looking for the relay node that are being monitored and/or,
  • Each monitored user device that is looking for a relay node is looking for a relay node
  • the communication target identifier of the user device and/or,
  • the user equipment can discover the node corresponding to the communication target identifier of the user equipment that searches for the relay node; and/or,
  • User equipment priority and/or communication target priority, and/or application priority; and/or,
  • the relay related information includes the type of the user equipment that searches for the relay node
  • the types of the searched relay user equipment include a public safety D2D user equipment and a non-public security D2D user equipment;
  • the relay related information includes the communication target identifier of the relay user equipment
  • the communication target of the user equipment for finding the relay node includes: a target user equipment, and/or a target device through group;
  • the relay related information includes the measurement result of the user equipment for the user equipment looking for the relay node
  • the measurement result of the user equipment for the user equipment looking for the relay node includes: a measurement of the strength of the search relay information signal sent by the user equipment of the user equipment looking for the relay node or a measurement of the corresponding reference signal;
  • the coverage status of the user equipment that searches for the relay node includes coverage and no coverage.
  • the relay related information when the relay related information includes a traffic and a quality of service requirement of the user equipment of the relay node, the relay related information further includes:
  • the method further includes:
  • the network control node sends the request information of the relay related information or the report configuration information of the relay related information to the user equipment.
  • the reporting configuration information of the relay related information includes: reporting the relay related information as an event reporting or periodic reporting, and one or more relay related information to be reported.
  • the method before the network control node receives the relay related information sent by the user equipment, the method further includes:
  • the user equipment listens to the relay receiving resource pool, and receives relay information sent by the neighboring relay node or information of the searching for the relay node sent by the neighboring user equipment.
  • the network control node before the network control node receives the relay related information sent by the user equipment, the network control node sends a relay receiving resource pool, and/or relay threshold information;
  • the network control node randomly selects or releases the relay node from the user equipment supporting the device through the relay;
  • the through relay configuration information includes:
  • the method further includes:
  • the user equipment performs activation and/or establishment, release, and/or deactivation, or modification of the determined relay function of the relay node according to the device through relay configuration information.
  • the application further provides a method for implementing device pass-through relay selection, including:
  • the user equipment receives relay related information
  • the user device selects or configures itself as a relay node.
  • the method before the user equipment receives the relay related information, the method further includes:
  • the user equipment may determine, according to the measurement result of the local cell, whether the relay threshold is met, and if the relay threshold is not met, selecting to not receive the relay related information;
  • the relay threshold information includes: a lowest link quality measurement threshold of the local cell, and/or a remaining power threshold, and/or a mobile state threshold.
  • selecting or configuring itself as a relay node includes:
  • the user equipment monitors the relay receiving resource pool, and determines whether there is relay related information sent by the neighboring relay node; if yes, receives relay related information sent by the neighboring relay node;
  • Receiving a relay type sent by a neighboring user equipment is not a relay type supported by the user equipment
  • the user equipment selects or configures itself as a relay node.
  • the method further includes:
  • the user equipment selects or configures itself as a relay node, and the method further includes:
  • the user equipment selects or releases its own relay function according to a predefined rule and the received relay related information
  • the predefined rules include:
  • the user equipment When the user equipment supports device pass-through relay function and has relay intention/interest/indication, and/or high remaining power, and/or low mobile state, and/or good cellular link quality, and/or geographic location
  • the user equipment configures its own relay when there is no coverage area edge, and/or the geographic location is at the cell edge, and/or the processing capability is strong, and/or the charging requirement is low, and/or the cellular and device direct service traffic is low. Function, select itself as a relay node;
  • the release option releases its own relay function when the zone edge, and/or the geographic location is at a non-cell edge, and/or the processing capability is weak, and/or the charging requirements are high, and/or the cellular and device direct traffic flows are high .
  • the method further includes:
  • the network control node sends the relay judgment information to the user equipment by using a broadcast or by using a dedicated signaling as a predefined rule;
  • the relay determination information includes: a power threshold requirement as a relay, and/or a mobility state requirement, and/or a geographic location requirement, and/or a processing capability requirement, and/or a cellular and device through traffic flow requirement, and/or Or cellular link quality requirements;
  • the quality of the cellular link is determined by the user equipment determining whether the RSRP or RSRQ measurement value of the local cell and/or the neighboring cell meets a given threshold;
  • the geographic location requirement is determined by the user equipment whether the RSRP measurement value of the local cell and/or the neighboring cell meets a given threshold.
  • the method further includes:
  • the relay configuration of the user equipment by the network control node may cover the relay configuration of the user equipment autonomous.
  • the application further provides a method for implementing device pass-through relay selection, including:
  • the user equipment sends an access relay request including relay related information to the network control node;
  • the user equipment receives the access relay configuration sent by the network control node.
  • the access relay includes: a device pass-through relay device having a relay function and forwarding data for the user equipment.
  • the access relay request includes:
  • Accessing a relay node configuration request, and/or accessing a relay node release request, and/or accessing a relay node update request is not limited to, but not limited to, but not limited to, but not limited to, but not limited to, but not limited to,
  • the access relay request includes:
  • the requested relay type the number of requested access relay nodes, the device through communication group to which the user equipment belongs, the geographical location of the user equipment, and the relay related information of the relay node sent by the monitored relay node.
  • the access relay request further includes configured access relay node identification information.
  • the relay related information is obtained by listening to information sent by the relay node
  • the relay related information includes:
  • the relay node identifier and/or,
  • the type of relay supported by the relay node and/or,
  • the processing capability of the relay node and/or,
  • the access prohibition state of the relay node and/or,
  • Public land mobile network PLMN information of the relay node is of the relay node.
  • obtaining the relay related information by listening to the information sent by the relay node includes:
  • the method further includes:
  • the near relay node acquires relay related information corresponding to the neighboring relay node.
  • the network control node requests the relay node to transmit relay related information by broadcasting or relay related information by using dedicated signaling.
  • the network control node selects or configures the access relay node for the user equipment according to the relay related information.
  • the network control node selects or configures the access relay node for the user equipment according to the relay related information, including:
  • the network control node When the network control node receives the access relay request sent by the user equipment as a relay release request, the network control node releases the access relay configuration of the user equipment;
  • the network control node When the network control node receives the access relay request sent by the user equipment as the relay update request information, it determines the relay type requested by the user equipment, and finds a relay node adjacent to the user equipment corresponding to the relay type. And arranging, randomly selecting an access relay node of the user equipment; or the network control node configuring or reconfiguring one or more access relay nodes for the user equipment according to a preset rule and related information of the relay node.
  • the access relay configuration comprises: a relay identifier of the access relay node, an activation and/or establishment, release and/or deactivation, or a modified configuration of the access relay node, and / or device direct transmission and receiving resource configuration.
  • the method further includes:
  • the user equipment performs activation and/or setup, release, and/or deactivation, or modification of the access relay node configuration in accordance with the access relay node configuration.
  • the application further provides a method for implementing device pass-through relay selection, including:
  • the user equipment receives relay related information sent by the neighboring relay node;
  • the method before the user equipment receives the relay related information, the method further includes:
  • the user equipment receives a relay receiving resource pool, and/or a relay selection threshold, by the network control node by broadcast or by dedicated signaling or pre-configured;
  • the relay selection threshold includes: a relay selecting a minimum through link quality threshold, and/or a relay reselection through link threshold, and/or a relay reselection hysteresis value;
  • the user equipment monitors The relay receives the resource pool and receives relay related information sent by the relay node;
  • the relay related information includes:
  • the relay node identifier and/or,
  • the type of relay supported by the relay node and/or,
  • the processing capability of the relay node and/or,
  • the minimum number of hops of the relay node from the network node and/or,
  • the relay load status of the relay node and/or,
  • the access prohibition state of the relay node and/or,
  • Public land mobile network PLMN information of the relay node is of the relay node.
  • the method further includes:
  • the measured value of the relay reselection hysteresis value is increased. Sorting the measurement results of all other relay nodes that are monitored, and reselecting the top relay node;
  • the user equipment configures/reconfigures one or more relay access nodes according to predefined rules and acquired relay related information.
  • the network control node configures the access relay node of the user equipment to cover the access relay node configuration of the user equipment autonomous.
  • the network control node sends the access relay node relay judgment information to the user equipment for determining a predefined rule by broadcasting or by using dedicated signaling;
  • the relay determination information includes: a relay node remaining power requirement, and/or a relay node geographic location requirement, and/or a relay node cellular link quality requirement, and/or a relay node mobility state requirement, and/or Information on processing capability requirements, and/or cellular and device pass-through traffic requirements, and/or relay node load requirements.
  • the geographic location of the relay node requires that the signal measurement value of the relay related information of the access relay node by the user equipment meets the given The threshold is determined.
  • a first sending unit configured to send, to the network control node, relay related information for determining the relay node
  • the first receiving unit is configured to receive the device through relay configuration information sent by the network control node when the user equipment is determined to be the relay node.
  • the user equipment further includes a relay processing unit, configured to perform activation, and/or establishment, release, and/or removal of the determined relay function of the relay node according to the device through relay configuration information. Activate, or modify.
  • a relay processing unit configured to perform activation, and/or establishment, release, and/or removal of the determined relay function of the relay node according to the device through relay configuration information. Activate, or modify.
  • the present application further provides a network control node that implements device pass-through relay selection, including: a relay determining unit and a third sending unit;
  • a relay determining unit configured to receive relay related information sent by the user equipment and determine a relay node
  • the third sending unit is configured to send the through relay configuration information to the determined relay node.
  • the relay determining unit is configured to receive the relay related information sent by the user equipment, perform relay node selection or configuration according to the relay related information, and determine, as the user equipment that is selected or configured as the relay node, Relay node.
  • relay receiving resource pools Broadcasting or pre-configured relay receiving resource pools, and/or relaying thresholds to the user equipment, so that the user equipment listens to the relay receiving resource pool, receives relay advertisement information sent by other relay nodes, or Information sent by other user equipments to find a user equipment determined to be a relay node.
  • the network control node further includes a selection release unit, configured to: after the relay determination unit receives the relay related information sent by the user equipment,
  • the predefined rules include:
  • the user equipment selected as the relay node no longer has relay intention/interest/indication, and/or low remaining power, and/or poor cellular link quality, and/or high mobile status, and/or geographic location is no longer in No cover
  • the relay node is released when the coverage area edge, and/or the geographic location is at a non-cell edge, and/or the processing capability is weak, and/or the charging requirements are high, and/or the cellular and device direct traffic flows are high.
  • the application further provides a user equipment that implements a device through relay selection, including: a fifth receiving unit and a determining unit;
  • a fifth receiving unit configured to receive relay related information
  • the determining unit is configured to select or configure itself as a relay node when the intercepting unit receives the information of the searching for the relay node sent by the neighboring user equipment;
  • the user equipment further includes a relay processing unit configured to select or configure the relay node for the determining,
  • the predefined rules include:
  • the user equipment When the user equipment supports device pass-through relay function and has relay intention/interest/indication, and/or high remaining power, and/or low mobile state, and/or geographical location at cell edge, and/or strong processing capability And/or low billing requirements, and/or when the cellular and device direct traffic is low, the user set Prepare your own relay function;
  • the user equipment further includes a relay judging receiving unit, configured to receive, after the user equipment selects or releases its own relay function, the relay judging information sent by the network control node by using broadcast or by using dedicated signaling. Sending to the relay processing unit as a predefined rule;
  • the relay determination information includes: a power threshold requirement as a relay, and/or a mobility state requirement, and/or a geographic location requirement, and/or a processing capability requirement, and/or a cellular and device through traffic flow requirement;
  • the application further provides a user equipment that implements a device through relay selection, including: a sixth sending unit and a sixth receiving unit;
  • a sixth sending unit configured to send an access relay request including relay related information to the network control node
  • the sixth receiving unit is configured to receive an access relay configuration sent by the network control node.
  • the user equipment When the user equipment cannot receive the resource pool through the monitoring relay and acquire the relay related information sent by the relay node, send a relay discovery message, so that the neighboring relay node listens to the relay discovery message, and then sends the Relaying related information to the user equipment.
  • a seventh receiving unit configured to receive an access relay request that is sent by the user equipment and includes relay related information
  • the network control node further includes a relay determining unit configured to select or configure the user equipment as the access relay node according to the relay related information.
  • the relay determining unit is further configured to: when the seventh receiving unit receives the access relay request sent by the user equipment as a relay release request, releasing the access relay configuration of the user equipment;
  • One or more access relay nodes are configured or reconfigured for the user equipment according to predefined rules and relay related information of the relay node.
  • the application further provides a user equipment that implements a device through relay selection, including: an eighth receiving unit and a determining unit;
  • An eighth receiving unit configured to receive relay related information sent by the neighboring relay node
  • the user equipment further includes a ninth receiving unit and a listening unit;
  • a ninth receiving unit configured to receive, by the network control node, a resource pool, or/or a relay selection, by using a relay or a pre-configured relay to transmit or pre-configure before the eighth receiving unit receives the relay-related information.
  • the monitoring unit is configured to listen to the relay receiving resource pool and receive the relay related information sent by the relay node.
  • the user equipment further includes a relay discovery unit, configured to: when the sixth receiving unit cannot receive the resource pool by listening to the relay, and receive the relay related information sent by the relay node, broadcast the relay discovery message. So that the user equipment listens to the relay node to send the relay related information.
  • a relay discovery unit configured to: when the sixth receiving unit cannot receive the resource pool by listening to the relay, and receive the relay related information sent by the relay node, broadcast the relay discovery message. So that the user equipment listens to the relay node to send the relay related information.
  • the determining unit is configured to select or configure the access relay node according to the relay related information.
  • the determining unit is configured to configure/reconfigure one or more relay access nodes according to the predefined rules and the acquired relay related information.
  • an embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the foregoing method.
  • the technical solution provided by the embodiment of the present invention includes: the network control node receives the relay related information sent by the user equipment, and determines the relay node; and the network control node sends the direct relay configuration to the determined relay node. information.
  • the embodiment of the present invention provides a relay node selection or configuration by transmitting relay related information in the network, and provides a corresponding solution for the scenario in which no relay selection is provided, and the selection of the relay node is implemented.
  • FIG. 1 is a schematic diagram of a related D2D application scenario
  • FIG. 7 is a flowchart of still another method for implementing device through relay selection according to an embodiment of the present invention.
  • FIG. 8 is a structural block diagram of a user equipment for implementing device direct relay selection according to an embodiment of the present invention.
  • FIG. 9 is a structural block diagram of a network control node for implementing device direct relay selection according to an embodiment of the present invention.
  • FIG. 12 is a structural block diagram of another network control node implementing device direct relay selection according to an embodiment of the present invention.
  • FIG. 13 is a structural block diagram of another user equipment for implementing device through relay selection according to an embodiment of the present invention.
  • FIG. 16 is a schematic diagram of information interaction for implementing device through relay selection according to a third embodiment of the present invention.
  • FIG. 19 is a schematic diagram of information interaction for implementing device through relay selection according to a sixth embodiment of the present invention.
  • FIG. 20 is a schematic diagram of information interaction for implementing device through relay selection according to a seventh embodiment of the present invention.
  • FIG. 21 is a schematic diagram of information interaction for implementing device through relay selection according to an eighth embodiment of the present invention.
  • FIG. 22 is a schematic diagram of information interaction for implementing device through relay selection according to a ninth embodiment of the present invention.
  • FIG. 23 is a schematic diagram of information interaction for implementing device through relay selection according to a tenth embodiment of the present invention.
  • Step 200 The user equipment sends the relay related information used to determine the relay node to the network control node.
  • the user equipment geographic location and/or,
  • the measurement result of the user equipment to the local cell and the neighboring cell and/or,
  • the network control node of the embodiment of the present invention includes: a base station, and/or a ProSe function and/or other network elements that perform a device through relay selection function.
  • the relay related information includes relay information sent by the relay node that is monitored by the user equipment
  • the relay information monitored by the user equipment further includes monitoring the relay type of the adjacent device through the relay user equipment, and/or The relay information measurement result of the adjacent device through the relay user equipment;
  • the relay related information includes a mobile state indication of the user equipment
  • the processing capability of the user equipment includes: a hardware configuration capability or a capability level of the user equipment, and represents a number of user equipment CPUs, and/or a primary frequency, and/or a memory difference or a data packet processing efficiency.
  • the relay type of the relay node and/or,
  • Direct traffic of the relay node and/or,
  • the relay load status of the relay node and/or,
  • the communication target of the user equipment for finding the relay node includes: a target user equipment, and/or a target device through group;
  • the coverage status of the user equipment that searches for the relay node includes coverage and no coverage.
  • the relay related information includes the traffic and quality of service requirements of the user equipment of the relay node
  • the relay related information further includes:
  • the user equipment listens to the relay receiving resource pool and receives the relay signal sent by the neighboring relay node.
  • Information about the relay node sent by the neighboring user equipment or,
  • the user equipment determines whether the relay threshold is met according to the measurement result, and if the threshold is met, receiving the relay information that is sent by the neighboring relay node or the neighboring user equipment that meets the relay threshold or sending the relay related information to the network control node;
  • the relay threshold information includes: a lowest link quality measurement threshold of the local cell, and/or a remaining power threshold, and/or a mobile state threshold.
  • the method of the embodiment of the present invention further includes:
  • the user equipment performs activation and/or establishment, release, and/or deactivation, or modification of the determined relay function of the relay node according to the device through relay configuration information.
  • FIG. 3 is a flowchart of another method for implementing device through relay selection according to an embodiment of the present invention, as shown in FIG. 3,
  • Step 300 The network control node receives the relay related information sent by the user equipment, and determines the relay node.
  • determining the relay node includes:
  • the network control node performs relay node selection or configuration according to the relay related information, and determines a user equipment selected or configured as a relay node as the relay node.
  • the relay related information includes:
  • the processing capability of the user equipment and/or,
  • the relay available period of the user equipment includes: a time interval that the user equipment can be used as a device through relay;
  • the measurement result includes: RSRP, and/or RSRQ, and/or CSI of the user equipment to the local cell and the neighboring cell.
  • RSRP radio resource synchronization reference
  • RSRQ Radio Service Set
  • the relay related information includes a mobile state indication of the user equipment
  • the relay related information includes processing capabilities of the user equipment
  • the processing capability of the user equipment includes: a hardware configuration capability or a capability level of the user equipment, and represents a number of user equipment CPUs, and/or a primary frequency, and/or a memory difference or a data packet processing efficiency.
  • the user equipment can discover the node corresponding to the communication target identifier of the user equipment that searches for the relay node; and/or,
  • the method of the embodiment of the present invention further includes:
  • the user equipment When the user equipment supports device pass-through relay function and has relay intention/interest/indication, and/or high remaining power, and/or low mobile state, and/or good cellular link quality, and/or geographical location is uncovered Selecting the user equipment as a relay node when the area edge, and/or the geographic location is at the cell edge, and/or the processing capability is strong, and/or the charging requirement is low, and/or the cellular and device direct service traffic is low;
  • Step 400 The user equipment receives relay related information.
  • the user equipment may determine whether the relay threshold is met according to the measurement result of the local cell, and if the relay threshold is not met, select to not receive the relay related information;
  • Step 401 The user equipment selects or configures itself as a relay node.
  • selecting or configuring a relay node is actually determined as a relay node.
  • the user device selects or configures itself as a relay node.
  • the user equipment monitors the relay receiving resource pool, and determines whether there is a search relay information sent by the neighboring user equipment; if yes, receives information about the search for the relay node sent by the neighboring user equipment; and the user equipment according to the monitored neighboring user The information sent by the device to find the relay node, select or configure itself as the relay node.
  • the user equipment selects or configures itself as a relay node, and the method in the embodiment of the present invention further includes:
  • the user equipment selects or releases its own relay function according to the predefined rules and the received relay related information
  • the release selection releases its own relay function when the edge, and/or geographic location is at a non-cell edge, and/or the processing power is weak, and/or the billing requirements are high, and/or the cellular and device direct traffic flows are high.
  • Cellular link quality requirements are determined by the user equipment whether the RSRP or RSRQ measurements of the own cell and/or neighboring cells satisfy a given threshold.
  • the geographic location requirement is determined by the user equipment whether the RSRP measurement value of the local cell and/or the neighboring cell meets a given threshold.
  • the geographic location requires that the user equipment determines whether the RSRP measurement value of the local cell and/or the neighboring cell meets the given threshold is determined. Other methods for determining the geographic location requirement may also be applied. Embodiments of the invention.
  • FIG. 5 is a flowchart of still another method for implementing device through relay selection according to an embodiment of the present invention. As shown in FIG. 5, the method includes:
  • the relay access request further includes configured access relay node identification information.
  • the relay information sent by the relay node includes:
  • the relay node identifier and/or,
  • the processing capability of the relay node and/or,
  • the coverage status of the relay node and/or,
  • the minimum number of hops of the relay node from the network node and/or,
  • the relay load status of the relay node and/or,
  • the access prohibition state of the relay node and/or,
  • the measurement result of the relay information received from the user equipment received by the relay node is the measurement result of the relay information received from the user equipment received by the relay node.
  • Obtaining the relay related information by monitoring information sent by the relay node includes:
  • the user equipment receives a relay receiving resource pool that the network control node sends or pre-configures through broadcast or through dedicated signaling;
  • the method of the embodiment of the present invention further includes:
  • the relay related information is sent to the user equipment.
  • Step 501 The user equipment receives an access relay configuration sent by the network control node.
  • the access relay node configuration includes: a relay identity of the access relay node, activation and/or establishment, release, and/or deactivation, or modification of the access relay node.
  • the method further includes:
  • the user equipment performs activation and/or setup, release, and/or deactivation, or modification of the access relay node configuration in accordance with the access relay configuration.
  • FIG. 6 is a flowchart of still another method for implementing device through relay selection according to an embodiment of the present invention. As shown in FIG. 6, the method includes:
  • Step 600 The network control node receives an access relay request that is sent by the user equipment and includes the relay related information.
  • the access relay request includes:
  • Accessing a relay node configuration request, and/or accessing a relay node release request, and/or accessing a relay node update request is not limited to, but not limited to, but not limited to, but not limited to, but not limited to, but not limited to,
  • Access relay requests include:
  • the requested relay type, and/or the number of requested access relay nodes, and/or the device pass-through communication group to which the user equipment belongs, and/or the geographic location of the user equipment, and/or the monitored relay node sends Relay related information of the relay node.
  • the relay access request is an access relay node release request or an access relay node update request
  • the relay access request includes the configured access relay node identification information.
  • Relay related information includes:
  • the type of relay supported by the relay node and/or,
  • Relay relay capability of the relay node and/or,
  • the processing power of the relay node and/or,
  • the coverage status of the relay node and/or,
  • the serving cell identity of the relay node and/or,
  • the minimum number of hops that the relay node is from the network node and/or,
  • the access prohibition status of the relay node and/or,
  • PLMN Public Land Mobile Network
  • Obtaining the relay related information by monitoring information sent by the relay node includes:
  • the user equipment receives a relay receiving resource pool that the network control node sends or pre-configures through broadcast or through dedicated signaling;
  • the user equipment listens to the relay receiving resource pool and acquires relay related information sent by the relay node.
  • the method further includes:
  • the relay related information is sent to the user equipment.
  • Step 601 The network control node sends an access relay configuration to the user equipment.
  • the access relay includes: a device pass-through relay device that has a relay function and can forward data for the user equipment.
  • the access relay configuration includes: a relay identity of the access relay node, activation and/or establishment, release and/or deactivation, or modification, and/or device pass-through transmission of the access relay node Or receive resource configuration.
  • the method of the embodiment of the present invention further includes:
  • the user equipment performs activation and/or setup, release, and/or deactivation, or modification of the access relay node configuration in accordance with the access relay node configuration.
  • the method of the embodiment of the present invention further includes:
  • the network control node determines, according to the geographic location of the user equipment, a relay node that is adjacent to the user equipment, and acquires relay related information corresponding to the neighboring relay node;
  • Obtaining the relay related information corresponding to the neighboring relay node includes:
  • the network control node requests the relay node to send the relay related information by broadcasting or the relay related information by using the dedicated signaling, so that the network control node acquires the relay related information corresponding to the neighboring relay node.
  • the method of the embodiment of the present invention further includes:
  • the network control node selects or configures the access relay node for the user equipment according to the relay related information.
  • the network control node selects or configures the access relay node for the user equipment according to the relay related information, including:
  • the network control node When the network control node receives the relay access request sent by the user equipment as a relay release request, the network control node releases the access relay configuration of the user equipment;
  • the network control node When the network control node receives the relay access request sent by the user equipment as the relay update request information, determining the relay type requested by the user equipment, and finding the neighboring relay node of the corresponding relay type and the user equipment And arranging, randomly selecting an access relay node of the user equipment; or the network control node configuring or reconfiguring one or more access relay nodes for the user equipment according to a preset rule and related information of the relay node.
  • preset rules refer to rules preset according to the experience of those skilled in the art, for example, the remaining power is high, and/or the mobile state is low, and/or the geographic location is adjacent to the user equipment, and/or Relay nodes with high processing power/low billing requirements, and/or low cellular and device direct traffic, and/or low relay load, and/or relay access barred states are non-prohibited, and/or have A PLMN/D2D group with the same user equipment.
  • FIG. 7 is a flowchart of a method for implementing device direct relay selection according to an embodiment of the present invention. As shown in FIG. 7, the method includes:
  • Step 700 The user equipment receives relay related information sent by the neighboring relay node.
  • This step also includes:
  • the user equipment receives a relay receiving resource pool, and/or a relay selection threshold, by the network control node by broadcast or by dedicated signaling or pre-configured;
  • the relay selection threshold includes: a relay selecting a minimum through link quality threshold, and/or a relay reselection through link threshold, and/or a relay reselection hysteresis value;
  • the user equipment When the user equipment has not selected the access node, or the user equipment has selected the access node but the measurement result of the relay related information sent by the user equipment to the selected relay node is smaller than the relay reselection pass-through link threshold, the user equipment is listening. Following receiving the resource pool, receiving relay related information sent by the relay node.
  • Relay related information includes:
  • the type of relay supported by the relay node and/or,
  • Relay relay capability of the relay node and/or,
  • the processing power of the relay node and/or,
  • the coverage status of the relay node and/or,
  • the serving cell identity of the relay node and/or,
  • the minimum number of hops that the relay node is from the network node and/or,
  • the access prohibition status of the relay node and/or,
  • Public land mobile network PLMN information of the relay node is of the relay node.
  • the method of the embodiment of the present invention further includes:
  • the user equipment broadcasts a relay discovery message
  • the relay node After the relay node listens to the relay discovery message, it sends the relay related information.
  • Step 701 The user equipment selects or configures an access relay node.
  • the user equipment selects or configures an access relay node according to the relay related information.
  • the selecting, by the user equipment, the access relay node according to the relay related information includes:
  • the user equipment configures/reconfigures one or more relay access nodes according to predefined rules and acquired relay related information.
  • the user equipment determines whether the measurement result of the relay related information sent to the relay node is greater than the relay selects the minimum through link quality threshold, and if not, excludes the middle Following node
  • the user equipment When the user equipment has selected to access the relay node, the user equipment increases the measured value of the selected access relay node by the relay reselection hysteresis value, and then increases the measured value of the relay reselection hysteresis value and all the monitored values.
  • the measurement results of other relay nodes are sorted, and the relay node with the highest ranking is reselected;
  • the order of judgment may be set according to the experience of those skilled in the art. For example, setting the user equipment to have a pass-through relay function and The relay intention/interest/indication is used as the first judgment rule, the remaining power level is used as the second judgment rule, and the like, and may be added and adjusted according to actual conditions.
  • the method further includes:
  • the network control node sends the access relay node relay judgment information to the user equipment for determining a predefined rule by broadcasting or by using dedicated signaling;
  • the relay determination information includes: a relay node remaining power requirement, and/or a relay node cellular link quality requirement, and/or a relay node geographic location requirement, and/or a relay node mobility state requirement, and/or Information on processing capability requirements, and/or cellular and device pass-through traffic requirements, and/or relay node load requirements.
  • the relay node cellular link quality requirement is determined by whether the signal measurement value of the serving node of the relay node satisfies a given threshold.
  • the geographic location of the relay node determines whether the signal measurement value of the relay related information of the relay node meets a given threshold by the user equipment.
  • the method of the embodiment of the present invention further includes:
  • the network control node configures the access relay node of the user equipment to cover the access relay node configuration of the user equipment.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the above method.
  • FIG. 8 is a structural block diagram of a network control node for implementing device direct relay selection according to an embodiment of the present invention, as shown in FIG.
  • the method includes: a first sending unit and a first receiving unit; wherein
  • a first sending unit configured to send relay related information for determining a relay node to the network Control node
  • the first receiving unit is configured to receive the device through relay configuration information sent by the network control node when the user equipment is determined to be the relay node.
  • the user equipment of the embodiment of the present invention further includes a second receiving unit, configured to receive request information of the relay related information sent by the network control node or report configuration information of the relay related information, and receive the request information of the relay related information.
  • the first transmitting unit transmits the relay related information.
  • the user equipment further includes a listening resource pool unit, configured to receive a relay receiving resource pool broadcasted or pre-configured by the network control node, listen to the relay receiving resource pool, and/or a relay threshold, and receive the neighboring medium. Relay information sent by the node or information sent by the neighboring user equipment to find the relay node.
  • FIG. 9 is a structural block diagram of a network control node for implementing device direct-through relay selection according to an embodiment of the present invention. As shown in FIG. 9, the method includes: a relay determining unit and a third sending unit;
  • a relay determining unit configured to receive relay related information sent by the user equipment and determine a relay node
  • the third sending unit is configured to send the through relay configuration information to the determined relay node.
  • the network control node determines, according to a predefined rule, whether the user equipment that is the relay node needs to be selected or configured;
  • a fifth receiving unit configured to receive relay related information
  • the user equipment further includes a listening resource pool unit, configured to receive a broadcast receiving or pre-configured relay receiving resource pool of the network control node, and/or a relay threshold, and listen to the relay receiving resource pool, and receive the sending by the neighboring relay node.
  • a listening resource pool unit configured to receive a broadcast receiving or pre-configured relay receiving resource pool of the network control node, and/or a relay threshold, and listen to the relay receiving resource pool, and receive the sending by the neighboring relay node.
  • Information about the relay node sent by the information or the neighboring user equipment
  • the release selection releases its own relay function when the edge, and/or geographic location is at a non-cell edge, and/or the processing power is weak, and/or the billing requirements are high, and/or the cellular and device direct traffic flows are high.
  • the user equipment When the user equipment cannot receive the resource pool through the monitoring relay and acquire the relay related information sent by the relay node, send a relay discovery message, so that the neighboring relay node listens to the relay discovery message, and then sends the Relaying related information to the user equipment.
  • a seventh receiving unit configured to receive an access relay request that is sent by the user equipment and includes relay related information
  • the seventh sending unit is configured to send an access relay configuration request to the user equipment.
  • the network control node of the embodiment of the present invention further includes an obtaining unit, configured to determine, according to a geographic location of the user equipment, a relay node that is adjacent to the user equipment, and acquire relay related information corresponding to the neighboring relay node, to obtain Relay related information of the neighboring relay node.
  • the network control node of the embodiment of the present invention further includes a relay determining unit, configured to select or configure the user equipment as the access relay node according to the relay related information.
  • the relay determining unit is further configured to release the access relay configuration of the user equipment when the seventh receiving unit receives the access relay request sent by the user equipment as a relay release request;
  • An eighth receiving unit configured to receive relay related information sent by the neighboring relay node
  • the user equipment of the embodiment of the present invention further includes a ninth receiving unit and a listening unit;
  • the method of the present invention will be described in detail below by way of specific examples, and the examples are not intended to limit the scope of the present invention.
  • the technical problem to be solved by the embodiments of the present invention is the problem of relay selection from UE to network relay and UE to UE relay in the device through-system.
  • the embodiment gives a specific possible selection method of the relay and access relay node and related signaling procedures.
  • the base station after receiving the D2D relay related information sent by the UE1 and the UE2, the base station finds that the UE1 and the UE2 are close to each other according to the geographic location, and is in the UE1. And there is no other available relay node around the UE2, the base station can randomly select a relay node between the UE1 and the UE2 as the terminal to the network. If the UE1 is selected as the relay node, the base station sends the device through to the UE1. Following configuration, including UE-to-network relay configuration establishment information; optionally, may include a relay identifier, and/or a relay type, and/or a relay duration/relay time interval, a relay transmission, and / or receive fields such as resources.
  • the relay available period of the UE refers to a time interval in which the UE can be used as a device through relay;
  • the mobile state indication of the UE includes: different speed indications such as fast, medium, and slow; and the relay sending and receiving capability of the UE refers to whether the UE has a special
  • the transceiver hardware is used for relaying and receiving;
  • the processing capability of the UE refers to the hardware configuration capability or capability level of the user equipment, which reflects the number of CPUs of the user equipment, the frequency of the main equipment, the memory, or the efficiency of data packet processing;
  • the fee requirement refers to the price compensation per unit of data/time unit expected by the user equipment for relay data forwarding;
  • the current cellular service traffic of the UE includes: the current uplink/downlink cellular traffic of the UE;
  • the current device direct traffic of the UE includes
  • the base station may comprehensively consider the above information, select or release the relay node, for example, predeterminedly selecting a user equipment having the following relay related information as a relay node: such as high remaining power, and/or low mobile state, and/or cellular chain Good road quality, and/or geographical location at the edge of the uncovered area, and/or geographical location at the cell edge, and/or strong processing power, and/or low billing requirements, and/or low cellular and device direct traffic.
  • User equipment predetermining a relay node having the following characteristics: releasing low remaining power, and/or high mobile status, and/or geographical location at the cell center, and/or weak processing capability, and/or high billing requirements, and / or cellular and device direct user equipment with high traffic.
  • UE1 and UE2 are within D2D communication range of each other, UE2 and UE3 are within D2D communication range of each other, and UE1 and UE3 are not within D2D communication range of each other.
  • UE1, UE2, and UE2 may obtain D2D relay receiving resource pool information through pre-configuration, and may also receive D2D relay resource pool information that the base station sends through broadcast or proprietary signaling.
  • FIG. 15 is a schematic diagram of information exchange for implementing device direct relay selection according to a second embodiment of the present invention.
  • the information of UE1 that is monitored by UE2 for searching for D2D relay includes: the monitored UE that is looking for D2D relay.
  • the UE2 is configured as a relay node, and the base station sends a device direct-through relay configuration to the UE2, where the UE-to-UE relay configuration establishment information is included, and may include a relay identifier, a relay type, a relay duration, or a relay time. Fields such as interval and relay resource configuration.
  • the base station may also select or release the relay node according to the predefined rules and the relay related information of the received UE.
  • the base station may select UE1 as the UE-to-network relay node, and send a device direct-through relay configuration to UE1, which includes UE-to-network relay configuration establishment information; optionally, may include a relay Fields such as identification, relay type, relay duration/relay time interval, and relay resource configuration.
  • the base station If the RSRP measurement result of the UE1 is smaller than the given threshold, the base station considers that the UE1 is at the cell edge; if the RSRP measurement result of all the neighboring cells measured by the UE1 is less than a given threshold or the UE1 does not detect the neighboring cell, the base station may Further believe that UE1 is at The network coverage edge, the base station may preferentially select the UE1 as the UE-to-network relay node, and send the device direct-through relay configuration to the UE1, including the UE-to-network relay configuration establishment information; optionally, the relay identifier may be included, Fields such as type, relay duration/relay time interval.
  • the UE2 has been selected by the base station as a UE-to-network relay node, but the UE2 considers that the UE2 is in the cell center, and the UE2 is in the cell center. It is no longer suitable as a UE-to-network relay node, so the base station sends a device pass-through relay configuration to UE2, which includes UE-to-network relay configuration release information.
  • the UE1 receives the device pass-through relay configuration sent by the base station, performs the establishment of the relay function according to the device direct-through relay configuration, and starts the broadcast transmission of the D2D relay advertisement information, where the D2D relay advertisement information may include the relay identifier and the relay type.
  • the D2D relay advertisement information may include the relay identifier and the relay type.
  • One or more pieces of information such as a relay service cell identifier, a relay available time period, a relay belonging group identifier, a relay mobile status indication, a relay charging requirement, a relay PLMN information, a relay prohibition status indication, and the like.
  • Officers A, B, C, and D use public safety UE1, UE2, UE3, and UE4 with D2D capabilities. Officers A, B, C, and D all subscribe to public safety services.
  • UE1 and UE2 are in network coverage state, while UE3 and UE4 are in network coverage.
  • UE1 and UE2 in network coverage are interested in becoming relay nodes, and provide relay services for uncovered UEs. For example, both UE1 and UE2 are interested in becoming UE-to-network relays.
  • UE1 when there is no relay advertisement information broadcasted by an adjacent D2D relay node, UE1 considers that there is no relay node around, and UE1 can wait for random within a given time range. After the time, perform the D2D relay function according to the pre-configuration, and start broadcasting and sending the D2D relay advertisement. interest. For UE2, if the D2D relay advertisement message broadcasted by the adjacent relay node is monitored at this time, the relay type of the adjacent device through relay user equipment and the measurement result of the received relay advertisement information are further determined.
  • the UE2 If the UE2 can detect the relay advertisement information broadcasted by the UE1, but the signal measurement value of the corresponding relay advertisement information is lower than a given threshold, the UE2 configures itself as a relay node if the UE2 cannot detect the UE1 broadcast.
  • UE1 and UE2 may also configure or release their own relay functions according to other predefined rules and relay related information of the user equipment, for example, predetermined selection of user equipment having the following relay related information as a relay node: High remaining power, and/or low mobile state, and/or good cellular link quality, and/or geographic location at the edge of the uncovered area, and/or geographical location at the cell edge, and/or strong processing power, and/or User equipment with low billing requirements, and/or low cellular and device direct traffic; pre-determined relay node release relay function with the following features: release low remaining power, and/or high mobile status, and/or geographic location User equipment that is no longer at the edge of the uncovered area, and/or where the geographic location is at the center of the cell, and/or that has weak processing capabilities, and/or high billing requirements, and/or high cellular and device direct traffic.
  • pre-determined relay node release relay function with the following features: release low remaining power, and/or high mobile status, and/or geographic location User equipment that is no longer at the
  • the relay configuration sent by the base station may cover the user equipment autonomy. Relay configuration.
  • Officer A and B use public safety UE1 and UE2 with D2D capabilities. Officer A and B both subscribe to public safety services.
  • UE1 is in network coverage and UE2 is in network coverage.
  • the UE1 in the network coverage is interested in becoming a relay node, and provides a relay service for the UE without coverage, that is, interested in becoming a UE-to-network relay.
  • FIG. 18 is a schematic diagram of information exchange for implementing device direct relay selection according to a fifth embodiment of the present invention.
  • UE1 and UE2 can obtain information of a D2D relay receiving resource pool through pre-configuration, and UE1 can also receive a base station to broadcast.
  • the sent D2D relay receives the information of the resource pool.
  • the UE1 that is interested in the UE-to-network relay listens to the D2D relay receiving resource pool. If the D2D relay related message sent by the UE2 broadcast can be monitored, the UE1 configures its own according to the pre-configuration. Following the function, UE-to-network relay is performed.
  • Embodiments 6 to 9 are processes in which a base station and a user equipment select an access relay node.
  • Officers A, B, and C use public safety UE1, UE2, and UE3 with D2D capabilities. Officers A, B, and C are all subscribed to public safety services.
  • UE1 is in a no-network coverage state
  • both UE2 and UE3 are in a network coverage state.
  • UE2 and UE3 in network coverage are interested in becoming relay nodes, and provide relay services for uncovered UEs.
  • both UE1 and UE2 are interested in becoming UE-to-network relays. And has been configured by the network as a UE-to-network relay node.
  • the UE1 receives the resource pool according to the pre-configured relay, monitors the relay receiving resource pool, and detects whether there is relay related information broadcasted by the neighboring node.
  • FIG. 19 is a sixth embodiment of the present invention.
  • the relay related information may include one or more of the following information: a relay node identifier, a remaining power of the relay node, a device pass-through group to which the relay node belongs, and a relay node.
  • the relay type the mobile node indication of the relay node, the relay transceiver capability of the relay node, the processing capability of the relay node, the relay charging requirement of the relay node, the coverage status of the relay node, The serving cell identifier of the node, the minimum hop count of the relay node from the network node, the relay load status of the relay node, the access prohibition status of the relay node, the PLMN information of the relay node, and the like.
  • the relay available period refers to a time interval in which the relay node performs the device through relay function; the mobile status indication includes: different moving speed indications such as fast, medium, and slow; and the relay sending and receiving capability refers to whether the UE has a dedicated transceiver hardware.
  • processing capability refers to the hardware configuration capability or capability level of the user equipment, which reflects the number of relay node CPUs, the main frequency, the memory difference or the data packet processing efficiency;
  • the relay charging requirement refers to the relay node pair.
  • the relay data forwarding expects price compensation per unit of data/time unit;
  • the relay load status may be data traffic forwarded by the UE as a relay, or may be a load indication forwarded by the UE, such as high, medium, low, etc.
  • the relay related information further includes a result of the UE 1 measuring a signal of the relay related information transmitted by the relay node.
  • the UE1 acquires the relay related information contained therein.
  • the UE1 determines, according to the pre-configured relay selection threshold, whether the measurement result of the UE2 and the UE3 meets the relay selection minimum pass-through link quality threshold, and if not, the UE1 follows Continue to monitor whether there are relay discovery information sent by other UEs.
  • the UE1 continues to select the relay access node according to the predefined rule and the acquired relay related information, such as selecting the remaining power is high, or the mobile state is low, or the geographic location is adjacent to the user equipment, or A relay node with a strong processing capability or low cellular or device direct traffic, or a low relay load, or a passive access prohibition state, or a PLMN/D2D group that is consistent with the user equipment is an access relay node. .
  • the predefined rules may be pre-configured or broadcast by the base station or by proprietary signaling, including the remaining power requirements of the relay node, or the geographic location requirements of the relay node (whether the signal measurement of the relay node by the user equipment is satisfied) The given threshold is determined), or the relay node mobility status requirements, or processing capability requirements, or cellular and device direct traffic requirements, or relay node load requirements. It is assumed that the pre-configured predefined rule is a geographical location requirement, that is, the UE is required to select the relay node with the strongest signal measurement value of the relay node. It is assumed that the signal strength of the relay advertisement information transmitted by the UE2 measured by the UE1 is higher than that of the UE3, and the UE1 selects the UE2 as the relay access node and starts to access for D2D data forwarding.
  • the UE1 wants to perform relay-based D2D communication with the UE4.
  • the UE1 firstly receives the resource pool information according to the pre-configured relay, and monitors the relay receiving resource pool to detect whether there is relay related information broadcasted by the neighboring node.
  • the seventh embodiment of the present invention implements the information exchange diagram of the device through relay selection. As shown in FIG. 20, if the UE1 cannot monitor the relay advertisement information broadcast by the neighboring node, the UE1 broadcasts and searches for the D2D on the relay receiving resource pool.
  • the relayed message that is, the relay discovery message.
  • the broadcast message of the D2D relay may include the identifier of the UE1, the D2D relay type (UE-to-UE relay) sought by the UE1, the communication target identifier of the UE1 (identity of the UE4), the traffic of the UE1, and the quality of service requirements.
  • UE2 and UE3 interested in becoming UE-to-UE relay nodes receive funds according to pre-configured relays Source pool information, listening to the relay receiving resource pool, detecting whether there is relay related information broadcast by neighboring nodes. Assuming that UE2 and UE3 both receive the message for D2D relay sent by UE1, and both UE2 and UE3 can discover UE4 and perform D2D communication with UE4, UE2 and UE3 send relay advertisement information including relay related information, including The relay node identifier, the remaining power of the relay node, the device pass-through group to which the relay node belongs, the relay available period of the relay node, the relay type, the mobile state indication of the relay node, and the relay transceiver capability of the relay node, Following the processing capability of the node, the relay charging requirement of the relay node, the coverage status of the relay node, the serving cell identity of the relay node, the minimum hop count of the relay node from the network node, and the relay load status of the relay node
  • the relay available period refers to a time interval in which the relay node performs the device through relay function; the mobile status indication includes: different moving speed indications such as fast, medium, and slow; and the relay sending and receiving capability refers to whether the UE has a dedicated transceiver hardware. Used for relay transmission and reception; processing capability refers to the hardware configuration capability or capability level of the user equipment, which reflects the number of relay node CPUs, the main frequency, the memory difference or the data packet processing efficiency; the relay charging requirement refers to the relay node pair.
  • the relay data forwarding expects price compensation per unit of data/time unit; the relay load status may be data traffic forwarded by the UE as a relay, or may be a load indication forwarded by the UE, such as high, medium, low, etc. .
  • the relay related information further includes a result of the UE 1 measuring a signal of the relay related information transmitted by the relay node.
  • the UE1 listens to the relay advertisement information sent by the UE2 and the UE3, the UE1 acquires the relay related information contained therein. Then, the UE1 selects a relay access node according to the predefined rule and the acquired relay related information, such as selection, high remaining power, or low mobile state, or geographical location adjacent to the user equipment, or strong processing capability, or The relay node with a low cell or device direct traffic, or a low relay load, or a non-prohibited relay access barring state, or a PLMN/D2D group that is consistent with the user equipment is an access relay node.
  • a relay access node such as selection, high remaining power, or low mobile state, or geographical location adjacent to the user equipment, or strong processing capability, or
  • the predefined rules may be pre-configured or broadcast by the base station or by proprietary signaling, including the remaining power requirements of the relay node and the geographic location requirements of the relay node (whether the signal measurement value of the relay node by the user equipment is satisfied) The threshold is determined), the relay node mobile state requirements, processing capability requirements, cellular and device direct traffic requirements, and relay node load requirements. It is assumed that the pre-configured predefined rule is a relay node mobility state requirement, that is, the UE is required to select a relay node whose mobile state is slow. Assuming that the mobile state of UE2 is slower than UE3, UE1 selects UE2 as the relay access node and starts accessing for D2D data forwarding.
  • UE1 and UE2 and UE3 are within D2D communication range of each other, while UE2 and UE3 and UE4 are within D2D communication range of each other, and UE1 and UE4 are not within D2D communication range of each other.
  • FIG. 21 is a device for implementing the eighth embodiment of the present invention. As shown in FIG. 21, it is assumed that both UE2 and UE3 are configured as D2D relay nodes, support UE-to-UE relay, and both transmit D2D relay advertisement information. The UE1 collects the D2D relay advertisement information broadcasted by the neighboring nodes UE2 and UE3, and measures the D2D relay advertisement signal.
  • the UE1 then sends a relay request to the eNB, where the relay configuration request information may be included.
  • the requested relay type, the D2D communication group to which the UE1 belongs, the geographic location of the UE1, and the monitored relay node broadcast transmission Relay node related information.
  • the eNB After receiving the relay request information sent by the UE1, the eNB determines the neighboring relay node according to the geographic location of the UE1 and acquires the relay related information corresponding to the neighboring relay node.
  • the relay related information corresponding to the relay node may be reported by the UE1 to the eNB in the relay request; or the UE1 only transmits the monitored relay node identifier, and the eNB determines the related information of the corresponding relay node according to the previous configuration. Or request the relay node to send relay related information to the eNB through dedicated signaling.
  • the eNB determines the relay type requested by the user equipment, finds a relay node set that is adjacent to the user equipment corresponding to the relay type, and may randomly select an access relay node of the UE1 or the eNB according to a predefined rule and a relay correlation.
  • the eNB finally selects UE2 as the UE-to-UE relay access node of UE1, and the eNB sends an access relay node configuration to UE1, and the device direct-through relay access configuration may include establishment, release, or Modify the configuration.
  • the UE1 receives the access relay node configuration information sent by the eNB, and then allocates according to the access relay node.
  • the establishment of the access relay node configuration is performed, and the access relay node UE2 is started to perform D2D data forwarding communication.
  • UE1 and UE2 and UE3 are within D2D communication range of each other, while UE2 and UE3 and UE4 are within D2D communication range of each other, and UE1 and UE4 are not within D2D communication range of each other.
  • the UE1 wants to perform relay-based D2D communication with the UE4.
  • the UE1 firstly receives the resource pool information according to the pre-configured relay, and monitors the relay receiving resource pool to detect whether there is relay related information broadcasted by the neighboring node.
  • the ninth embodiment of the present invention implements the information exchange diagram of the device through relay selection. As shown in FIG. 22, if the UE1 does not detect any D2D relay advertisement information, the UE1 sends a relay request to the eNB, which may include a relay configuration request. Information, which may include the requested relay type, the D2D communication group to which UE1 belongs, the geographic location of UE1, and the like.
  • the eNB After receiving the relay request information sent by the UE1, the eNB determines the neighboring D2D relaying user equipment according to the geographic location of the UE1, and sends a relay information request to the relay capable UE or sends the relay related information report configuration.
  • the relay-related information reporting configuration includes event reporting or periodic reporting, and the type of relay-related information that needs to be reported, so that the eNB can continuously receive the updated relay-capable UE status. information.
  • the base station may randomly select one of the candidate nodes as the UE-to-UE relay node. Assume that UE2 is selected as the relay node, and the base station sends a device-through relay configuration to the UE2, which includes the UE-to-UE relay configuration establishment information.
  • the specific information may include: a relay identifier, a relay type, a relay duration, and a relay. Fields such as time intervals.
  • the UE2 receives the device pass-through relay configuration sent by the base station, and performs the establishment of the relay function according to the device through-through relay configuration.
  • the eNB then sends an access relay node configuration to the UE1, and the device direct-through relay access configuration may include an establishment configuration of the access relay node, where the identification information of the relay access node UE2 is included.
  • the UE1 receives the access relay node configuration information sent by the eNB, and then performs establishment of the access relay node configuration according to the access relay node configuration, and starts to access the relay node UE2 for D2D data forwarding communication.
  • FIG. 23 is a schematic diagram of information exchange for implementing device direct relay selection according to the tenth embodiment of the present invention.
  • UE1 has selected relay UE2 and established a connection with it for data forwarding.
  • the user equipment After the UE1 detects that the link measurement result (S2) for the relay UE2 is lower than the relay reselection pass-through link threshold, the user equipment starts to listen to the pre-configured relay receiving resource pool. It is assumed that UE1 cannot monitor the relay discovery information broadcasted by neighboring other relay node nodes (that is, look for relay information), and UE1 broadcasts a message for finding a D2D relay on the relay transmission resource pool.
  • the UE1 listens to the relay response information sent by the Relay UE3, and the UE1 acquires the relay related information contained therein and measures the signal strength thereof, and the measurement result is S3. Then UE1 pairs (S2+ relay reselection hysteresis value), S3 is sorted. If the S3 value is higher, UE1 reselects Relay UE3 as the access relay node, and starts to attempt to establish a connection for D2D data forwarding.
  • each module/unit in the above embodiment may be implemented in the form of hardware, for example, by implementing an integrated circuit to implement its corresponding function, or may be implemented in the form of a software function module, for example, executing a program stored in the memory by a processor. / instruction to achieve its corresponding function.
  • the invention is not limited to any specific form of combination of hardware and software.
  • the above technical solution is a scenario in which no relay selection is provided, and a corresponding solution is provided, and the selection of the relay node is implemented.

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

Abstract

L'invention concerne un procédé pour réaliser une sélection de relais de communication de dispositif à dispositif, un nœud de commande de réseau et un équipement d'utilisateur. Le procédé comprend les étapes suivantes : un nœud de commande de réseau reçoit des informations relatives à un relais envoyées par un équipement d'utilisateur et détermine un nœud relais ; et le nœud de commande de réseau envoie des informations de configuration de relais de communication de dispositif à dispositif au nœud relais déterminé. Au moyen de cette solution technique, l'envoi d'informations relatives à un relais sur un réseau pour effectuer une sélection ou une configuration sur un nœud relais constitue une solution correspondante pour un scénario ne prévoyant pas de sélection de relais, ce qui permet de réaliser la sélection du nœud relais.
PCT/CN2015/097471 2014-12-22 2015-12-15 Procédé pour réaliser une sélection de relais de communication de dispositif à dispositif, nœud de commande de réseau et équipement d'utilisateur WO2016101808A1 (fr)

Priority Applications (5)

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EP20207860.6A EP3799453A1 (fr) 2014-12-22 2015-12-15 Procédé pour réaliser une sélection de relais de communication de dispositif à dispositif, noeud de commande de réseau et équipement utilisateur
EP15871876.7A EP3226583B1 (fr) 2014-12-22 2015-12-15 Procédé pour réaliser une sélection de relais de communication de dispositif à dispositif, noeud de commande de réseau et équipement d'utilisateur
US15/538,661 US10334563B2 (en) 2014-12-22 2015-12-15 Method for realizing device-to-device communication relay selection, network control node and user equipment
US16/424,339 US10856266B2 (en) 2014-12-22 2019-05-28 Method for realizing device-to-device communication relay selection, network control node and user equipment
US17/092,026 US20210058902A1 (en) 2014-12-22 2020-11-06 Method for realizing device-to-device communication relay selection, network control node and user equipment

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CN201410810609 2014-12-22
CN201410810609.5 2014-12-22
CN201510251322.8A CN106211026B (zh) 2014-12-22 2015-05-15 一种实现设备直通中继选择的方法、网络控制节点及用户设备
CN201510251322.8 2015-05-15

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US16/424,339 Continuation US10856266B2 (en) 2014-12-22 2019-05-28 Method for realizing device-to-device communication relay selection, network control node and user equipment

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WO2018102964A1 (fr) * 2016-12-05 2018-06-14 华为技术有限公司 Procédé et dispositif de transmission d'informations
CN107205256A (zh) * 2017-04-17 2017-09-26 西安交通大学 一种d2d中继网络中基于社会特性的中继选择方法
CN109345184A (zh) * 2018-08-01 2019-02-15 平安科技（深圳）有限公司 基于微表情的节点信息处理方法、装置、计算机设备及存储介质
CN109345184B (zh) * 2018-08-01 2023-06-06 平安科技（深圳）有限公司 基于微表情的节点信息处理方法、装置、计算机设备及存储介质
CN113498046A (zh) * 2020-04-03 2021-10-12 肯舒摩照明（美国）有限责任公司 通信的方法、装置和系统，存储介质和终端
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CN114125820A (zh) * 2020-06-29 2022-03-01 华硕电脑股份有限公司 无线通信系统中用户设备报告侧链路用户设备能力信息的方法和设备
CN114125820B (zh) * 2020-06-29 2024-05-24 华硕电脑股份有限公司 用户设备报告侧链路用户设备能力信息的方法和设备
CN113596879A (zh) * 2021-07-30 2021-11-02 浙江大华技术股份有限公司 无线设备的数据传输方法及装置
CN114051224A (zh) * 2021-08-09 2022-02-15 吴钟博 一种无人机密集编队支撑网络的协同中继选择方法
CN114051224B (zh) * 2021-08-09 2023-12-05 吴钟博 一种无人机密集编队支撑网络的协同中继选择方法
US11606732B1 (en) 2021-09-08 2023-03-14 T-Mobile Usa, Inc. Coverage improvement for 5G new radio wireless communication network, such as for over-shooting cells
US11800382B1 (en) 2021-09-08 2023-10-24 T-Mobile Usa, Inc. Coverage improvement for 5G new radio wireless communication network

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