WO2018072157A1 - 一种控制设备到设备间发现的方法及相关设备 - Google Patents

一种控制设备到设备间发现的方法及相关设备 Download PDF

Info

Publication number
WO2018072157A1
WO2018072157A1 PCT/CN2016/102617 CN2016102617W WO2018072157A1 WO 2018072157 A1 WO2018072157 A1 WO 2018072157A1 CN 2016102617 W CN2016102617 W CN 2016102617W WO 2018072157 A1 WO2018072157 A1 WO 2018072157A1
Authority
WO
WIPO (PCT)
Prior art keywords
relay function
user equipment
supporting
notification message
parameter set
Prior art date
Application number
PCT/CN2016/102617
Other languages
English (en)
French (fr)
Inventor
徐海博
王键
庄宏成
坦尼纳坦•爱德华
杜振国
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201680089283.9A priority Critical patent/CN109691149B/zh
Priority to PCT/CN2016/102617 priority patent/WO2018072157A1/zh
Priority to EP16919138.4A priority patent/EP3522578B1/en
Priority to US16/343,237 priority patent/US10708754B2/en
Publication of WO2018072157A1 publication Critical patent/WO2018072157A1/zh

Links

Images

Classifications

    • 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
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • 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
    • H04W8/00—Network data management
    • 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
    • H04W88/18—Service support devices; Network management devices
    • 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 invention relates to the field of communications technologies, and in particular, to a method and related device for controlling device-to-device discovery.
  • the device-to-device (D2D) communication mode refers to the communication mode in which the transmitting end sends data directly to the receiving end without transiting through the base station or the cellular network.
  • a special mode of the D2D communication mode is that a User Equipment (Remote UE) is connected to the network through another relay device (Relay UE).
  • the method of connecting to the network through the relay device can smoothly access the network when the remote user equipment is not in the network coverage, and can reduce the access power consumption of the remote user equipment.
  • the remote user equipment Before the remote user equipment accesses the network by using the relay device, the remote user equipment first needs to discover the user equipment for which relay relay support can be provided.
  • the user equipment that supports the relay function starts to perform the discovery process only after acquiring the resources configured by the base station for transmitting or receiving the discovery message, and satisfying the channel quality condition of the Uu interface configured by the base station, and at this time, it is possible to perform the implementation.
  • the user equipment of the discovery process cannot meet the relay requirement of the remote user equipment, and the user equipment cannot be used by the remote user equipment.
  • the discovery process performed by the user equipment will be a useless discovery process, resulting in necessary power consumption.
  • Embodiments of the present invention provide a method for controlling device-to-device discovery and related devices, so as to reduce unnecessary useless discovery processes.
  • an embodiment of the present invention provides a method for controlling device-to-device discovery, where the method includes: acquiring, by a network device, N first relay function parameter sets of N user equipments supporting a relay function, the N The first relay function parameter set corresponds to the N user equipments supporting the relay function, and N is a positive integer; then the network device acquires the second relay function parameter set of the remote user equipment; The user equipment determines at least one of the N user equipments supporting the relay function The user equipment supporting the relay function, wherein the first relay function parameter set and the second relay function parameter set of the at least one user equipment supporting the relay function satisfy a preset matching relationship; and finally the network device supports the at least one The user equipment of the relay function sends a first notification message, where the first notification message is used to trigger the at least one user equipment supporting the relay function to initiate a device-to-device discovery process.
  • At least one user equipment supporting the relay function of the N user equipments supporting the relay function is determined by the network device, and the network device only triggers the determined at least one supported relay function.
  • the user equipment initiates a device-to-device discovery process, thereby reducing the unnecessary power consumption of the user equipment supporting the relay function that does not satisfy the discovery function requirement of the remote user equipment.
  • the resource of the notification process can be saved. Consume and speed up the process of discovering each other between the remote user device and the user device supporting the relay function. For example, when the user equipment supporting the relay function needs to perform the carrier frequency of the discovery, the user equipment supporting the relay function can transmit or receive the discovery message only on the carrier frequency without attempting to try multiple carrier frequencies.
  • the network device comprises a base station or a Mobility Management Node Entity (MME).
  • MME Mobility Management Node Entity
  • at least one user equipment supporting the relay function of the N user equipments supporting the relay function may be determined by using different network device entities, so that the method for discovering the control device to the device is more flexible.
  • the network device acquires N first relay function parameter sets of the N user equipments supporting the relay function, including: receiving, by the base station, the second And a notification message, where the second notification message includes a user equipment identifier of the N user equipments supporting the relay function and the N first relay function parameter sets.
  • the network device acquires N first relay function parameter sets of the N user equipments that support the relay function, including: the base station sends the first to the MME. a request message, wherein the first request message includes a second relay function parameter set; and then the base station receives a first request message feedback message returned by the MME in response to the first request message, where the first request feedback message includes N support User ID of the user equipment of the relay function and N first Following the function parameter set.
  • the N first function parameter sets of the N user equipments supporting the relay function are obtained and saved by the MME, and then the base station actively or passively acquires the N first relay function parameter sets from the MME, thereby reducing The power consumption of the base station, and the acquisition manner of the N first relay function parameter sets is more flexible.
  • the network device acquires the second relay function parameter set of the remote user equipment, where the network device acquires the second relay function parameter set of the remote user equipment from the remote user equipment.
  • the network device acquires the second relay function parameter set of the remote user equipment, where the base station receives the second request message sent by the remote user equipment, where the second request message includes The second relay function parameter set.
  • the network device acquires a second relay function parameter set of the remote user equipment, including: receiving, by the MME, a third request message sent by the remote user equipment, the third request The message includes a second set of relay function parameters.
  • the first relay function parameter set includes at least one of the following relay function parameters: a remote user equipment association identifier supported by the user equipment supporting the relay function, in the support The access mode of the device-to-device connection supported by the functional user equipment and the discovery mechanism of the discovery process supported by the user equipment supporting the relay function.
  • the second relay function parameter set includes at least one of the following relay function parameters: a remote user equipment association identifier supported by the user equipment supporting the relay function, the remote end The access mode of the device-to-device connection currently selected by the user equipment and the discovery mechanism of the discovery process selected by the remote user equipment.
  • the support relay function that meets the requirement can be selected according to the situation.
  • User equipment By including some function requirement parameters related to a relay function of a user equipment supporting the relay function in the first relay function parameter set, and including a relay function related to the remote user equipment in the second relay function parameter set
  • the function requirement parameter so that when the first relay function parameter is matched with the second function parameter set of the remote device to determine the N user devices supporting the relay function, the support relay function that meets the requirement can be selected according to the situation.
  • the method further includes: the network device acquiring a third relay function parameter set of the remote user equipment; and then the network device incorporating the third relay function parameter set into the second relay function parameter set Updating the second relay function parameter set to obtain a new second relay function parameter set;
  • the first relay function parameter set of a user equipment supporting the relay function includes the new second relay function parameter set.
  • the third relay function parameter set includes at least one of the following functional parameters: a public land network PLMN identifier currently selected by the remote user equipment, and a current serving frequency of the remote user equipment.
  • the function requirement parameters related to the relay function of the remote user equipment are further determined by the network device, thereby enabling more accurate matching of the user equipment supporting the relay function that meets the requirements.
  • the foregoing first notification message includes at least one of the following parameters: indication information for initiating the discovery process, access mode of the device-to-device connection, and sending in the discovery process And/or a carrier frequency at which the discovery message is received, a discovery mechanism of the discovery process, and a pool of transmitting and/or receiving resources used to send and/or receive discovery messages in the discovery process.
  • the user equipment supporting the relay function can initiate the discovery process according to the first notification message after receiving the first notification message by including the parameter of the foregoing discovery process and the indication information in the first notification message.
  • the network device sends the first notification message to the at least one user equipment supporting the relay function, including: the MME sends a third notification message to the base station, where the third notification message is used. Instructing the base station to send the first notification message to the at least one user equipment supporting the relay function.
  • the foregoing third notification message includes at least one of the following parameters: a user equipment identifier of the at least one user equipment supporting the relay function, and indication information for initiating the discovery process, The access mode of the device-to-device connection, the carrier frequency of the discovery message during the discovery process, the discovery mechanism of the discovery process, and the transmission used to send and/or receive the discovery message during the discovery process And/or receive resource pools.
  • the base station needs to send the first notification message to notify the at least one user equipment supporting the relay function, so the MME may send a third notification message to the base station to instruct the base station to send.
  • First notification message After the at least one user equipment supporting the relay function is determined by the MME, the base station needs to send the first notification message to notify the at least one user equipment supporting the relay function, so the MME may send a third notification message to the base station to instruct the base station to send.
  • the method further includes: after the base station determines that the user equipment supporting the relay function of the at least one user equipment supporting the relay function is connected to the remote user equipment, the base station provides the at least one support The user equipment of the relay function is removed from the one supporting the relay function.
  • the user equipment supporting the relay function other than the user equipment sends a fourth notification message, which is used to notify other user equipments supporting the relay function to stop the discovery process.
  • the fourth notification message includes at least one of the following parameters: a remote user equipment association identifier supported by the user equipment supporting the relay function and an indication information for stopping the discovery process . Stop the discovery process by sending a fourth notification message to the user equipment supporting the relay function, so that after the remote user equipment has successfully established a connection with a user equipment supporting the relay function, let other users supporting the relay function The device stops the discovery process in time and reduces unnecessary power consumption.
  • the first notification message is a dedicated control message.
  • the fourth notification message includes a dedicated control message.
  • the fourth notification message is sent through the dedicated control message to make the transmission efficiency of the message efficient.
  • the first notification message is a paging message.
  • the fourth notification message includes a paging message.
  • the first notification message further includes: the user equipment identifier of the at least one user equipment supporting the relay function.
  • the first notification message includes a time identifier, where the time identifier is used to indicate that the at least one user equipment supporting the relay function receives the first notification message and passes the corresponding time stamp.
  • the discovery process is stopped after the time period is set.
  • the user equipment that supports the relay function stops the discovery process by including the time identifier in the first notification message, so that the control of the discovery process is more flexible, and the user equipment supporting the relay function stops the discovery process in time. To reduce unnecessary power consumption.
  • an embodiment of the present invention provides a method for controlling device-to-device discovery, the method includes: receiving, by a user equipment, a first notification message sent by a network device, where the first notification message is used to trigger at least one support relay
  • the functional user equipment initiates a device-to-device discovery process, the at least one The user equipment supporting the relay function is determined by the network device from the N user equipments supporting the relay function, wherein the user equipment supports the relay function; and then the user equipment initiates the discovery process based on the first notification message.
  • At least one user equipment supporting the relay function of the N user equipments supporting the relay function is determined by the network device, and the network device only triggers the determined at least one supported relay function.
  • the user equipment initiates a device-to-device discovery process, thereby reducing the unnecessary power consumption of the user equipment supporting the relay function that does not satisfy the discovery function requirement of the remote user equipment.
  • the resource of the notification process can be saved. Consume and speed up the process of discovering each other between the remote user device and the user device supporting the relay function. For example, when the user equipment supporting the relay function needs to perform the carrier frequency of the discovery, the user equipment supporting the relay function can transmit or receive the discovery message only on the carrier frequency without attempting to try multiple carrier frequencies.
  • the user equipment if the first notification message includes a paging message, the user equipment initiates the discovery process based on the first notification message, including: the user equipment receives the paging message at a preset listening time; if the first notification message The user equipment identifier of the user equipment is included, and the user equipment initiates the foregoing discovery process based on the first notification message.
  • an embodiment of the present invention provides a method for controlling device-to-device discovery, the method includes: receiving, by a user equipment, a notification message sent by a network device, where the user equipment supports a relay function, where the notification message is used to trigger a user.
  • the device initiates a device-to-device discovery process, where the notification message includes a communication parameter set initiated by the user equipment to the device-to-device discovery process; where the user equipment's relay function parameter set and the communication parameter set satisfy a preset matching relationship
  • the user equipment initiates a device-to-device discovery process.
  • the communication parameter set of the discovery process between the device and the device initiated by the user equipment in the relay function supporting the relay function satisfies the preset matching.
  • the user equipment initiates a discovery process, thereby reducing the unnecessary power consumption of the user equipment supporting the relay function that does not satisfy the discovery function requirement of the remote user equipment to initiate the discovery process.
  • the discovery process only by the user equipment partially supporting the relay function, when the requirement of the remote user equipment is notified during the disvovery period, the resource consumption of the notification process can be saved, and the remote user equipment and the support relay can be accelerated.
  • the process of discovering each other between functional user devices For example, when the user equipment supporting the relay function needs to perform the carrier frequency of the discovery, the user equipment supporting the relay function can transmit or receive the discovery message only on the carrier frequency without attempting to try multiple carrier frequencies.
  • the network device comprises a base station.
  • the communication parameter set includes at least one of the following parameters: indication information for initiating the discovery process, access mode of the device-to-device connection, and the discovery process.
  • Public land network PLMN identity Public land network PLMN identity, carrier frequency at which the discovery message is sent and/or received during the discovery process, discovery mechanism of the discovery process, and transmission and/or reception used to send and/or receive discovery messages during the discovery process Resource pool.
  • the foregoing relay function parameter set includes at least one of the following parameters: a remote user equipment association identifier supported by the user equipment supporting the relay function, and the user equipment support supporting the relay function
  • the access mode of the device-to-device connection, the public land network PLMN identity supported by the user equipment supporting the relay function, the carrier frequency supported by the user equipment supporting the relay function, and the user supporting the relay function A discovery mechanism for the device-to-device discovery process supported by the device.
  • a demand parameter related to the discovery process in the communication parameter set, and then matching the relay function parameter set based on the demand parameter to find a user equipment supporting the relay function that satisfies the requirement, thereby enabling selection of the support that meets the requirement.
  • the user equipment supporting the relay function that does not meet the discovery function requirement of the remote user equipment further reduces the unnecessary power consumption of the discovery process.
  • the notification message includes a paging message.
  • the user equipment initiates the device-to-device discovery process, if the user equipment's relay function parameter set and the communication parameter set meet the preset matching relationship.
  • the method further includes: the user equipment receiving the paging message at a preset listening time.
  • an embodiment of the present invention provides a method for controlling device-to-device discovery, the method includes: the network device acquires a second relay function parameter set of the remote user equipment; the network device sends a notification message to the user equipment, where the user equipment supports a relay function, where the notification message is used to trigger the user equipment to initiate the device to the device.
  • the discovery process includes the communication parameter set of the user equipment initiating the device-to-device discovery process, and the communication parameter set is determined based on the second relay function parameter set.
  • the user equipment when the communication parameter set of the device-to-device discovery process of the user equipment supporting the relay function meets the preset matching relationship, the user equipment initiates The discovery process, thereby reducing the unnecessary power consumption of the user equipment supporting the relay function that does not meet the discovery function requirements of the remote user equipment, initiates the discovery process.
  • the discovery process only by the user equipment partially supporting the relay function, when the requirement of the remote user equipment is notified during the disvovery period, the resource consumption of the notification process can be saved, and the remote user equipment and the support relay can be accelerated.
  • the process of discovering each other between functional user devices For example, when the user equipment supporting the relay function needs to perform the carrier frequency of the discovery, the user equipment supporting the relay function can transmit or receive the discovery message only on the carrier frequency without attempting to try multiple carrier frequencies.
  • the network device comprises a base station.
  • the method further includes: the network device acquiring a third relay function parameter set of the remote user equipment; the network device incorporating the third relay function parameter set into the second relay function parameter set to update The second relay function parameter set obtains a new second relay function parameter set; the first relay function parameter set of the at least one user equipment supporting the relay function includes a new second relay function parameter set.
  • the function requirement parameters related to the relay function of the remote user equipment are further determined by the network device, thereby enabling more accurate matching of the user equipment supporting the relay function that meets the requirements.
  • the communication parameter set includes at least one of the following parameters: indication information for initiating the discovery process, access mode of the device-to-device connection, and the discovery process.
  • Public land network PLMN identity Public land network PLMN identity, carrier frequency at which the discovery message is sent and/or received during the discovery process, discovery mechanism of the discovery process, and transmission and/or reception used to send and/or receive discovery messages during the discovery process Resource pool.
  • the notification message includes a paging message.
  • an embodiment of the present invention provides a network device, where the network device has the function of implementing the foregoing first aspect.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the network device may be a base station or an MME, or may be another network node, for example, a serving GPRS support node, a network entity of a non-access stratum, or a network entity of a radio control resource layer.
  • the structure of the base station includes a processor, a transmitter, and a receiver, and the processor is configured to support the base station to perform a corresponding function in the foregoing method.
  • the transmitter and receiver are used to support communication between the base station and the user equipment and the MME.
  • the base station may further include a memory for coupling with the processor, which stores necessary program instructions and data of the base station.
  • the structure of the MME includes a processor, a transmitter, and a receiver, and the processor is configured to support the MME to perform a corresponding function in the foregoing method.
  • the transmitter and receiver are used to support communication between the MME and the user equipment and the base station.
  • the MME may further include a memory for coupling with the processor, which stores necessary program instructions and data of the base station.
  • an embodiment of the present invention provides a user equipment, where the user equipment has the function of implementing the foregoing second aspect.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the user equipment includes a processor, a receiver, and a transmitter configured to support the user equipment to perform corresponding functions in the methods described above.
  • the receiver and transmitter are used to support communication between a user equipment and a network device.
  • the user equipment may further include a memory for coupling with the processor, which stores program instructions and data necessary for the user equipment.
  • an embodiment of the present invention provides a user equipment, where the user equipment has the functions of implementing the foregoing third aspect.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the user equipment includes a processor, a receiver, and a transmitter configured to support the user equipment to perform corresponding functions in the methods described above.
  • the receiver and transmitter Support communication between user equipment and network equipment.
  • the user equipment may further include a memory for coupling with the processor, which stores program instructions and data necessary for the user equipment.
  • an embodiment of the present invention provides a network device, where the network device has the function of implementing the foregoing fourth aspect.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the network device may be a base station or an MME, or may be another network node, for example, a serving GPRS support node, a network entity of a non-access stratum, or a network entity of a radio control resource layer.
  • the structure of the base station includes a processor, a transmitter, and a receiver, and the processor is configured to support the base station to perform a corresponding function in the foregoing method.
  • the transmitter and receiver are used to support communication between the base station and the user equipment.
  • the base station may further include a memory for coupling with the processor, which stores necessary program instructions and data of the base station.
  • the structure of the MME includes a processor, a transmitter, and a receiver, and the processor is configured to support the MME to perform a corresponding function in the foregoing method.
  • the transmitter and receiver are used to support communication between the MME and the user equipment and the base station.
  • the MME may further include a memory for coupling with the processor, which stores necessary program instructions and data of the base station.
  • the embodiment of the present invention provides a computer storage medium for storing the computer software instructions used in the above network device for the fifth aspect, which comprises a program designed to perform the above aspects.
  • an embodiment of the present invention provides a computer storage medium for storing the computer software instructions used in the foregoing user equipment for the sixth aspect, which includes a program designed to perform the above aspects.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use in the user equipment described in the seventh aspect, which includes a program designed to perform the above aspects.
  • the embodiment of the present invention provides a computer storage medium for storing the computer software instructions used in the foregoing network device for the eighth aspect, which comprises a program designed to execute the above aspects.
  • At least one user equipment supporting the relay function of the N user equipments supporting the relay function is determined by the network device, and the network device only triggers the determination.
  • the at least one user equipment supporting the relay function initiates a device-to-device discovery process, thereby reducing unnecessary power consumption of the user equipment supporting the relay function that does not satisfy the discovery function requirement of the remote user equipment.
  • the resource of the notification process can be saved. Consume and speed up the process of discovering each other between the remote user device and the user device supporting the relay function. For example, when the user equipment supporting the relay function needs to perform the carrier frequency of the discovery, the user equipment supporting the relay function can transmit or receive the discovery message only on the carrier frequency without attempting to try multiple carrier frequencies.
  • FIG. 1 is a network architecture diagram of a system for controlling device-to-device discovery according to an embodiment of the present invention
  • FIG. 1 is a network architecture diagram of another system for controlling device-to-device discovery according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a device-to-device discovery mechanism according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of another device-to-device discovery mechanism according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of an embodiment of a method for controlling device-to-device discovery according to an embodiment of the present invention
  • FIG. 4 is a schematic flowchart of another method for controlling device to device discovery according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of still another method for controlling device-to-device discovery according to an embodiment of the present disclosure
  • FIG. 6 is a schematic flowchart of still another method for controlling device to device discovery according to an embodiment of the present disclosure
  • FIG. 7 is a schematic flowchart of an embodiment of a method for controlling device-to-device discovery according to an embodiment of the present disclosure
  • FIG. 8 is a schematic flowchart of another method for controlling device-to-device discovery according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of another network device according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of another user equipment according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 14 is a schematic structural diagram of another user equipment according to an embodiment of the present disclosure.
  • FIG. 15 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 16 is a schematic structural diagram of another network device according to an embodiment of the present invention.
  • Embodiments of the present invention provide a method for controlling device-to-device discovery and related devices, so as to reduce unnecessary useless discovery processes.
  • references to "an embodiment” herein mean that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the invention.
  • the appearances of the phrases in various places in the specification are not necessarily referring to the same embodiments, and are not exclusive or alternative embodiments that are mutually exclusive. Those skilled in the art will understand and implicitly understand that the embodiments described herein can be combined with other embodiments.
  • FIG. 1 is a network architecture diagram of a system for controlling device-to-device discovery according to an embodiment of the present invention
  • FIG. 1-b is another embodiment of the present invention.
  • the method for controlling device-to-device discovery provided by the embodiments of the present invention may be performed based on the two network architecture diagrams.
  • the remote user equipment 110, the at least one user equipment 120 supporting the relay function, and the base station 130 optionally, may also include a Mobility Management Entity 140 (MME).
  • MME Mobility Management Entity
  • the base station 130 and the MME 140 may be collectively referred to as a network device.
  • the network device may be used to indicate the base station 130.
  • the network device may be used to indicate the MME 140.
  • the remote user equipment 110 can be far away from the base station 130 and is outside the network coverage of the base station 130, so that the communication connection cannot be directly established with the base station 130.
  • the connection between the remote user equipment 110 and the user equipment 120 supporting the relay function can be directly established.
  • the Bluetooth device can be low-powered between the remote user equipment 110 and the user equipment 120 supporting the relay function.
  • the BLE) or the wireless technology Wifi establishes a link, so that the remote user equipment 110 can establish an access network link with the base station 130 through the user equipment 120 supporting the relay function to perform uplink or downlink data transmission.
  • the network structure of the network device shown in FIG. The network structure of the network device shown in FIG.
  • the network communication connection is established directly, but when the remote user equipment 110 directly accesses the network service provided by the base station 130, a large transmission power is required, and since the remote user equipment 110 is generally small in size, the battery capacity is relatively small, and the power is relatively small.
  • the wearable device is low in consumption, so the operation of the remote user device 110 is required to be low-power consumption, and when the remote user device 110 communicates with the relay device 120, the required transmission power is relatively small, so in order to save
  • the power of the remote user equipment 110 may be in the second network.
  • the remote user equipment 110 establishes an access network link with the base station 130 through the relay device 120 to perform uplink or downlink data transmission.
  • the remote user equipment 110 may be a user equipment (User Equipment, UE for short) such as a mobile phone or a wearable device (WE).
  • the user equipment 120 supporting the relay function may also be a mobile phone and wearable.
  • the user equipment of the device, the base station 130 may be an evolved base station (evolved NodeB, eNodeB for short), and configured to provide network access resources for the remote user equipment or the user equipment 120 supporting the relay function, and the MME may be used for storing the support relay.
  • Information about the functional user device 120 may be a user equipment (User Equipment, UE for short) such as a mobile phone or a wearable device (WE).
  • the user equipment 120 supporting the relay function may also be a mobile phone and wearable.
  • the user equipment of the device, the base station 130 may be an evolved base station (evolved NodeB, eNodeB for short), and configured to provide network access resources for the remote user equipment or the user equipment 120 supporting the relay function, and the MME
  • the embodiment of the present invention is mainly used in an application scenario where the remote user device 110 is a wearable device, and the user device 120 supporting the relay function is a mobile phone.
  • the remote user equipment 110 in order to establish the connection between the remote user equipment 110 and the base station 130 by the user equipment 120 supporting the relay function, the remote user equipment 110 first needs to discover the user equipment for which the relay support can be provided.
  • 3GPP 3rd Generation Partnership Project
  • FIG. 2 is a schematic diagram of a device-to-device discovery mechanism according to an embodiment of the present invention
  • FIG. 2b is a schematic diagram of another device-to-device discovery mechanism according to an embodiment of the present invention
  • FIG. 2-a and FIG. Figure 2-b corresponds to Model A and Model B, respectively.
  • the user equipment supporting the relay function broadcasts the discovery message according to a predetermined period. At this time, if other remote user equipments are listening to the discovery message, the other remote users are The device will discover the user device for this relay function.
  • the user equipment that sends the notification message is called the notification terminal announcing UE
  • the user equipment that receives the discovery message is called the monitoring terminal monitoring UE.
  • the user equipment In the discovery mechanism shown in Figure 2-b, if a user equipment wants to discover the user equipment around it, the user equipment will actively send a request message Solicitation message. If other user equipments are listening to these messages, after receiving such a request message, a response message is sent to the user equipment that sent the request message.
  • the user equipment that sends the solicitation message is called the discovery terminal discoverer UE, and the user equipment that sends the response message is called the initial discovery terminal discoveree UE.
  • a user equipment that supports the relay function transmit a discovery message that is controlled by the base station.
  • the base station controls the resources used by the user equipment that supports the relay function to send the discovery message.
  • the base station controls the channel conditions of the Uu interface that the user equipment supporting the relay function needs to send the discovery message.
  • the base station may choose to broadcast the threshold of one or two Uu channel channel conditions. The lowest channel quality of the Uu port that needs to be satisfied for sending the discovery message; the highest channel quality of the Uu port that is required to be sent by another discovery message;
  • the base station For a user equipment that supports the relay function in the RRC_IDLE state, if the base station broadcasts a resource pool for transmitting a discovery message, when the channel quality of the Uu interface of the user equipment supporting the relay function satisfies the above channel quality condition, The user equipment that supports the relay function can start to send a discovery message. When the channel quality of the Uu interface of the user equipment supporting the relay function no longer satisfies the above channel quality condition, the user equipment supporting the relay function stops sending the discovery message.
  • the user equipment supporting the relay function For the UE in the RRC_CONNECTED state, when the channel quality of the Uu interface of the user equipment supporting the relay function satisfies the above channel quality condition, the user equipment supporting the relay function first needs to send an indication to the base station to request to start the discovery process. After receiving the resource allocated by the base station for sending the discovery message, the user equipment supporting the relay function can start to send the discovery message.
  • the remote user equipment and the user equipment supporting the relay function can only send and receive the discovery message on a pre-configured carrier frequency.
  • the user equipment supporting the relay function is not selected according to the requirements of the remote user equipment.
  • the service frequency of the user equipment that supports the relay function of the discovery message does not meet the requirements of the remote user equipment, or the discovery time and discovery mechanism of the user equipment that supports the relay function may not meet the requirements of the remote user equipment.
  • the technical solution provided by the embodiment of the present invention can control when the user equipment supporting the relay function sends or stops the discovery process according to the requirements of the remote user equipment, so as to solve the unnecessary power consumption.
  • FIG. 3 shows a control device to device discovery according to an embodiment of the present invention.
  • the network device acquires N first relay function parameter sets of the user equipments that support the relay function, where the N first relay function parameter sets correspond to the N user equipments that support the relay function.
  • the N is a positive integer.
  • N user equipments supporting the relay function there are N user equipments supporting the relay function in the network space for performing the device-to-device discovery process, and at least one of the N user equipments supporting the relay function may have at least one function supporting the relay function.
  • the user equipment cannot meet the requirements of the remote user equipment during the process of performing the discovery.
  • the network device comprises a base station or an MME.
  • the user equipment supporting the relay function may be in a connected state ECM_CONNECTED or an idle state ECM_IDLE.
  • the first relay function parameter set refers to context information supported by the user equipment supporting the relay function and related to the relay function of the user equipment supporting the relay function.
  • the first relay function parameter set includes at least one of the following relay function parameters:
  • the remote user equipment association identifier supported by the user equipment supporting the relay function, the device-to-device connection access mode supported by the user equipment supporting the relay function, and the user equipment supported by the relay function The discovery mechanism of the discovery process.
  • the remote user equipment association identifier supported by the user equipment supporting the relay function may be, for example, identity information of the remote user equipment supported by the user equipment supporting the relay function ( Identification, referred to as ID), or other form of identification of the user equipment that is associated with the relay-enabled function and the remote user equipment for which the relay service can be provided.
  • ID identity information of the remote user equipment supported by the user equipment supporting the relay function
  • ID other form of identification of the user equipment that is associated with the relay-enabled function and the remote user equipment for which the relay service can be provided.
  • the access mode of the device to the device connection includes, but is not limited to, Wireless Local Area Networks (WLAN) communication, Bluetooth communication, and Long Term Evolution (LTE) based on the side link.
  • WLAN Wireless Local Area Networks
  • LTE Long Term Evolution
  • the discovery mechanism includes: Model A or Model B.
  • the first relay function parameter set includes all the relay function parameters supported by the user equipment supporting the relay function, and may be one or more, for example, if the user supports the relay function. If the remote user equipment association identifier supported by the device is the remote user equipment ID, then the The first relay function parameter set will include all remote user IDs supported by the user equipment supporting the relay function, for example, ID1, ID2, etc.; similarly, the device-supported device supported by the user equipment supporting the relay function
  • the access mode of the connection includes the A access mode supported by the user equipment supporting the relay function, the B access mode, and the like; the discovery mechanism of the discovery process supported by the user equipment supporting the relay function may include Model A and Model B.
  • the network device acquires a second relay function parameter set of the remote user equipment.
  • the second relay function parameter set refers to a parameter related to the relay function supported by the remote user equipment.
  • the second relay function parameter set includes at least one of the following relay function parameters:
  • the remote user equipment association identifier supported by the user equipment supporting the relay function the access mode of the device selection to the device connection currently selected by the remote user equipment, and the discovery process of the discovery process selected by the remote user equipment mechanism.
  • the remote user equipment association identifier supported by the user equipment supporting the relay function may be an ID of the remote user equipment.
  • the access mode of the device to the device connection includes, but is not limited to, Wireless Local Area Networks (WLAN) communication, Bluetooth communication, and may include LTE Sidelink in a Long Term Evolution (LTE) system. Communication.
  • WLAN Wireless Local Area Networks
  • Bluetooth Bluetooth communication
  • LTE Sidelink in a Long Term Evolution (LTE) system.
  • the discovery mechanism when the access mode selected by the remote user equipment is LTE sidelink, the discovery mechanism includes: Model A or Model B.
  • the relay function parameter included in the second relay function parameter set is selected by the current remote user equipment, for example, far.
  • the access mode of the device-to-device connection currently selected by the user equipment may be only one of the multiple access modes supported by the remote user equipment, for example, the A access mode.
  • the remote user equipment is currently The discovery mechanism selected is Model A, and the discovery mechanism of the discovery process selected by the remote user equipment is Model A.
  • the method further includes:
  • the network device combines the third relay function parameter set into the second relay function parameter set Retrieving the second relay function parameter set to obtain a new second relay function parameter set;
  • the first relay function parameter set of the at least one user equipment supporting the relay function includes the new second relay function parameter set.
  • the third relay function parameter set includes at least one of the following functional parameters:
  • the network device acquires the third relay function parameter set as PLMN1.
  • the service frequency is 1, and then the new first relay function parameter set is ID1, access mode A, ModelA, PLMN1 and service frequency 1, and the new first one is used when the first relay function parameter set is used. Following the function parameter set.
  • the network device determines, for the remote user equipment, at least one user equipment that supports the relay function, and at least one user equipment that supports the relay function.
  • a relay function parameter set and the second relay function parameter set satisfy a preset matching relationship.
  • the at least one user equipment supporting the relay function determined by the network device for the remote user equipment refers to the user equipment that can meet the discovery function requirement of the remote user equipment.
  • the preset matching relationship is used to determine at least one user equipment supporting the relay function, where the preset matching relationship is used to indicate between the first relay function parameter set and the second relay function parameter set. Matching relationship.
  • the first relay function parameter set supported by the user equipment supporting the relay function and the remote user equipment selection second relay function parameter set satisfy a preset matching relationship for indicating the second selected by the remote user equipment.
  • the function parameter is supported by the user equipment supporting the relay function, that is, the first relay function parameter set exists.
  • the first relay function parameter set includes the access mode ⁇ WLAN, Bluetooth communication ⁇ , and the access mode of the second relay function parameter set is WLAN, it can be understood as The access mode parameter satisfies the preset matching relationship, and if the access mode of the second relay function parameter set is LTE, it can be understood that the access mode parameter does not satisfy the preset matching relationship.
  • the matching of other relay function parameters is similar.
  • the first selection may be selected.
  • the relay function parameter set and the second relay function parameter set satisfy one or more user equipments supporting the relay function in the case of maximum matching.
  • the network device sends a first notification message to the at least one user equipment supporting the relay function, where the first notification message is used to trigger the at least one user equipment supporting the relay function to initiate device-to-device Discovery process.
  • the first notification message includes at least one of the following parameters:
  • Instructing information for initiating the discovery process access mode of the device-to-device connection, carrier frequency of sending and/or receiving a discovery message in the discovery process, discovery mechanism of the discovery process, and the discovery A pool of transmitting and/or receiving resources used by the process to send and/or receive discovery messages.
  • the access mode of the device to the device connection includes, but is not limited to, Wireless Local Area Networks (WLAN) communication, Bluetooth communication, and may include LTE Sidelink in a Long Term Evolution (LTE) system. Communication.
  • WLAN Wireless Local Area Networks
  • Bluetooth Bluetooth communication
  • LTE Sidelink in a Long Term Evolution (LTE) system.
  • the discovery mechanism includes: Model A or Model B.
  • the user equipment supporting the relay function After receiving the first notification message, the user equipment supporting the relay function starts the discovery process according to the information provided in the first notification message.
  • the user equipment supporting the relay function can perform the discovery process according to the parameter by carrying the discovery indication and some parameters used in the discovery process in the first notification message.
  • the network device if the network device is the MME, the network device sends the first notification message to the at least one user equipment supporting the relay function, including:
  • the MME sends a third notification message to the base station, where the third notification message is used to instruct the base station to send the first notification message to the at least one user equipment supporting the relay function.
  • the third notification message includes at least one of the following parameters:
  • the user equipment identifier of the at least one user equipment supporting the relay function, the indication information for initiating the discovery process, the access mode of the device-to-device connection, and the sending and/or receiving discovery during the discovery process The carrier frequency of the message, the discovery mechanism of the discovery process, and the pool of transmit and/or receive resources used to send and/or receive discovery messages during the discovery process.
  • the user equipment identifier may be an International Mobile Subscriber Identification Number (IMSI) or a Short-Temporary Mobile Subxcriber Identity (S-TMSI) of the user equipment supporting the relay function. .
  • IMSI International Mobile Subscriber Identification Number
  • S-TMSI Short-Temporary Mobile Subxcriber Identity
  • the sending and/or receiving resource pool used for sending and/or receiving the discovery message in the discovery process may also be determined by the base station according to the user equipment identifier.
  • the base station determines, according to the IMSI or S-TMSI information included in the third notification message, which user equipments that need to trigger the relay function are triggered to start the discovery process.
  • the base station needs to send the first notification message to notify the at least one user equipment supporting the relay function, so the third notification message can be sent by the MME to the base station. Instructing the base station to send the first notification message.
  • the first notification message is a dedicated control message.
  • the first notification message may be an RRCConnectionReconfiguration message.
  • the first notification message is a paging message.
  • the first notification message if the first notification message is a paging message, the first notification message further includes: a user equipment identifier of the at least one user equipment supporting the relay function.
  • the user equipment initiates the discovery process based on the first notification message, including:
  • the user equipment initiates the discovery process based on the first notification message.
  • the user equipment supports the Relay function, and the preset listening time refers to the user equipment predetermining. Listening moments.
  • the Paging message received by the user equipment supporting the relay function includes the information included in the Paging message of the middle base station and The information includes the user equipment identifier of the user equipment, for example, the user equipment initiates a Relay discovery process.
  • the discovery process can enable the remote user equipment to discover and select the user equipment that provides the relay support, so that the remote user equipment can access the network through the user equipment.
  • the network device acquires N first relay function parameter sets of the N user equipments that support the relay function, and the N first relay function parameter sets and the N supports.
  • the N is a positive integer; then the network device acquires a second relay function parameter set of the remote user equipment; and determines, among the N user equipments that support the relay function, for the remote user equipment
  • At least one user equipment supporting the relay function, the first relay function parameter set of the at least one user function supporting the relay function and the second relay function parameter set satisfy a preset matching relationship;
  • the at least one user equipment supporting the relay function sends a first notification message, where the first notification message is used to trigger the at least one user equipment supporting the relay function to initiate a device-to-device discovery process.
  • the discovery process thereby reducing the unnecessary power consumption of the user equipment supporting the relay function that does not meet the discovery function requirements of the remote user equipment, initiates the discovery process.
  • the resource of the notification process can be saved. Consume and speed up the process of discovering each other between the remote user device and the user device supporting the relay function. For example, when the user equipment supporting the relay function needs to perform the carrier frequency of the discovery, the user equipment supporting the relay function can transmit or receive the discovery message only on the carrier frequency without attempting to try multiple carrier frequencies.
  • the network device acquires N first relay function parameter sets of the user equipments that support the relay function, including:
  • the base station receives the second notification message sent by the MME, where the second notification message includes the user equipment identifier of the N user equipments supporting the relay function and the N first relay function parameter sets.
  • the user equipment identifier may be a user ID, or may be another identifier of the user information used to represent the user equipment supporting the relay function.
  • the user equipment supporting the relay function includes a user equipment in an ECM_IDLE state, and a user equipment in an ECM_CONNECTED state.
  • the user equipment supporting the relay function is in an ECM_CONNECTED state.
  • the MME notifies the base station of the context information related to the Relay function of the user equipment by using a second message on the S1 interface, that is, the first Relay function parameter set.
  • the first notification message may be an Initial UE Context Request message, or may be other newly defined messages.
  • the network device acquires N first relay function parameter sets of the N user devices supporting the relay function, including :
  • the MME Receiving, by the MME, a first request message feedback message sent by the MME in response to the first request message, where the first request feedback message includes a user identifier of the N user equipments supporting the relay function, and the N The first relay function parameter set.
  • the first request message is used to request the MME to provide ID information of the user equipment that can provide relay support for the remote user equipment.
  • the user equipment supporting the relay function includes a user equipment in an ECM_IDLE state, and a user equipment in an ECM_CONNECTED state.
  • the user equipment supporting the relay function is an ECM_IDLE state, and the first request is cancelled.
  • the information is used to request the MME to provide related information of the user equipment in the ECM_IDLE state but capable of providing relay support for the remote user equipment.
  • the MME receives the first request message on the S1 interface sent by the base station, and then the MME finds all the user equipments that support the relay function that meet the condition but are still in the ECM_IDLE state according to the foregoing information; then the MME returns an S1 interface.
  • the first request message feedback message is sent to the base station.
  • the first request message includes at least one of the following information: a remote user equipment association identifier supported by the user equipment supporting the relay function, a device-to-device connection access mode supported by the remote user equipment, and a remote end The discovery mechanism of the discovery process supported by the user device.
  • the first request message may be a newly defined message
  • the first request feedback message may be a newly defined message
  • the MME actively provides the remote user equipment with the identifier of the user equipment supporting the relay function and the corresponding parameter, or the base station requests the MME to send the identifier of the user equipment supporting the relay function and corresponding parameters, so that the base station obtains the first middle.
  • the way of function parameters is flexible.
  • the acquiring, by the network device, the second relay function parameter set of the remote user equipment includes:
  • the network device acquires the second relay function parameter set of the remote user equipment from the remote user equipment.
  • the second relay function parameter set related to the remote user equipment can be obtained directly from the remote user equipment, so that the acquisition efficiency is high.
  • the network device acquires a second relay function parameter set of the remote user equipment, including:
  • the base station receives a second request message sent by the remote user equipment, where the second request message includes the second relay function parameter set.
  • the remote user equipment after the remote user equipment triggers the discovery process, the remote user equipment sends a second request message to the base station.
  • the second request message may be a Sidelink UEinformation in the current protocol, or may be a newly defined one control message.
  • the network device acquires a second relay function parameter set of the remote user equipment, including:
  • the MME receives a third request message sent by the remote user equipment, where the third request message includes the second relay function parameter set.
  • the remote user equipment sends a third request message to the MME.
  • the third request message is a newly defined one NAS message.
  • the second relay function parameter set related to the remote user equipment can be obtained directly from the remote user equipment, so that the acquisition efficiency is high.
  • the method further includes:
  • the base station After the base station determines that one of the at least one user function supporting the relay function supports the relay function, the base station connects to the at least one user supporting the relay function.
  • the user equipment supporting the relay function except the user equipment supporting the relay function in the device sends a fourth notification message, where the fourth notification message is used to notify the other user equipment supporting the relay function to stop.
  • the discovery process After the base station determines that one of the at least one user function supporting the relay function supports the relay function, the base station connects to the at least one user supporting the relay function.
  • the user equipment supporting the relay function except the user equipment supporting the relay function in the device sends a fourth notification message, where the fourth notification message is used to notify the other user equipment supporting the relay function to stop.
  • the fourth notification message includes at least one of the following parameters:
  • the remote user equipment association identifier supported by the user equipment supporting the relay function and the indication information for stopping the discovery process is not limited to the remote user equipment association identifier supported by the user equipment supporting the relay function and the indication information for stopping the discovery process.
  • the user equipment supporting the relay function receives the fourth notification message, and if the fourth notification message includes the user equipment identifier of the user equipment supporting the relay function, the user equipment is according to the fourth notification.
  • the indication of the message stops the discovery process.
  • the fourth notification message includes a dedicated control message.
  • the discovery process is stopped.
  • the fourth notification message includes a paging message.
  • the discovery process is stopped.
  • the discovery is stopped by sending a fourth notification message to the user equipment supporting the relay function.
  • the process is such that after the remote user equipment has successfully established a connection with a user equipment supporting the relay function, the other user equipment supporting the relay function stops the discovery process in time, thereby reducing unnecessary power consumption.
  • the first notification message includes a time identifier, where the time identifier is used to indicate that the at least one user equipment supporting the relay function receives the first notification message. And stopping the discovery process after the preset time period corresponding to the time identifier.
  • the base station includes a timer time in the first notification message that is sent by the user equipment that triggers the relay function to start the discovery process.
  • the time of the timer is the maximum length of time for the user equipment supporting the relay function to perform discovery.
  • the user equipment supporting the Relay function After receiving the first notification message, the user equipment supporting the Relay function starts the discovery process according to the information provided in the first notification message, and simultaneously starts a timer. When the timer expires, the user equipment supporting the Relay function automatically stops the discovery process.
  • the user equipment that supports the relay function stops the discovery process by including the time identifier in the first notification message, so that the control of the discovery process is more flexible, and the user equipment supporting the relay function stops the discovery process in time. To reduce unnecessary power consumption.
  • FIG. 4 is a schematic flowchart diagram of another method for controlling device-to-device discovery according to an embodiment of the present invention.
  • the embodiment is based on a preferred embodiment of the embodiment shown in FIG.
  • the UE supporting the relay function is used to indicate the user equipment supporting the relay function
  • the Remote UE is used to represent the remote user equipment.
  • the same or similar content as the method shown in FIG. 3 can be referred to the detailed description in FIG. 3, and details are not described herein again.
  • the method may include the following steps:
  • the MME saves a first relay function parameter of the UE that supports the relay function.
  • the MME sends a second notification message to the base station, where the base station receives the second notification message sent by the MME.
  • the second notification message includes a user equipment identifier of the N user equipments supporting the relay function and the N first relay function parameter sets, where the N user terminals that support the relay function are configured.
  • the device is in the ECM_CONNECTED state.
  • the Remote UE sends a second request message to the base station, where the base station receives the second request message sent by the Remote UE.
  • the second request message includes a second relay function parameter set of the Remote UE.
  • the base station acquires a third relay function parameter set of the UE that supports the relay function to update the first relay function parameter set.
  • the base station determines, for the remote user equipment, at least one of the N relay-supporting UEs that supports a relay function.
  • the first relay function parameter set of the at least one UE supporting the relay function and the second relay function parameter set satisfy a preset matching relationship.
  • the at least one UE supporting the relay function includes a UE1 that supports a relay function and a UE2 that supports a relay function.
  • the base station sends a first notification message to the at least one UE that supports the relay function. At least one UE supporting the relay function receives the first notification message.
  • the first notification message is used to trigger the at least one user equipment supporting the relay function to initiate a device-to-device discovery process.
  • the at least one UE supporting the relay function initiates a discovery process.
  • the base station After the base station determines that the Remote UE finds and selects a UE that supports the relay function, the base station sends a fourth notification message to the UE that supports the relay function.
  • the base station determines that the remote UE finds and selects the UE1 that supports the relay function, the base station sends a fourth notification message to the UE2 that supports the relay function.
  • the notification message is a dedicated control message.
  • the notification message is an RRCConnectionReconfiguration message.
  • the UE2 that supports the relay function stops the discovery process after receiving the RRCConnectionReconfiguration message.
  • the user equipment supporting the relay function that does not satisfy the discovery function requirement of the remote user equipment initiates unnecessary power consumption of the discovery process.
  • FIG. 5 is a schematic flowchart of still another method for controlling device-to-device discovery according to an embodiment of the present invention.
  • the embodiment is based on a preferred embodiment of the embodiment shown in FIG.
  • the UE supporting the relay function is used to indicate the user equipment supporting the relay function
  • the Remote UE is used to represent the remote user equipment.
  • the same or similar content as the method shown in FIG. 3 can be referred to the detailed description in FIG. 3, and details are not described herein again.
  • the method may include the following steps:
  • the MME saves a first relay function parameter of the UE that supports the relay function.
  • the MME sends a second notification message to the base station, where the base station receives the second notification message sent by the MME.
  • the second notification message includes the user equipment identifier of the N1 user equipments supporting the relay function and the N1 first relay function parameter sets, where the N1 user equipments supporting the relay function are in the ECM_CONNECTED state.
  • the Remote UE sends a second request message to the base station, where the base station receives the second request message sent by the Remote UE.
  • the second request message includes a second relay function parameter set of the Remote UE.
  • the base station acquires a third relay function parameter set of the UE that supports the relay function to update the first relay function parameter set.
  • the base station determines, for the Remote UE, at least one of the N1 relay-enabled UEs in the ECM_CONNECTED state that is in the ECM_CONNECTED state and supports the relay function.
  • the first relay function parameter set of the at least one UE supporting the relay function and the second relay function parameter set satisfy a preset matching relationship.
  • the base station sends a first request message to the MME, where the MME receives the first request message sent by the base station.
  • the first request message is used to request, from the MME, ID information of a UE that is in an ECM_IDLE state but is capable of providing relay support for the remote UE.
  • the first request message includes a second relay function parameter set.
  • the MME finds all the conditions that satisfy the condition according to the first request message but is still in the UE supporting the relay function in the ECM_IDLE state.
  • the MME returns first request feedback information to the base station, and the base station receives the first request feedback information sent by the MME.
  • the first request feedback information includes a user identifier of the N2 UEs supporting the relay function in an ECM_IDLE state, and the N2 first relay function parameter sets.
  • the first request feedback information is a response message on the S1 interface, and the first request feedback information is newly defined information.
  • the base station sends a first notification message to the UE that supports the relay function.
  • the UE supporting the relay function includes at least one UE supporting the relay function in the ECM_CONNECTED state of the N1 UEs supporting the relay function in the ECM_CONNECTED state determined in step S505, and the N2 ECM_IDLEs determined in step S507. UE that supports the relay function.
  • the UE supporting the relay function includes a UE1 that supports a relay function and a UE2 that supports a relay function.
  • the first notification message is used to trigger the user equipment supporting the relay function to initiate a device-to-device discovery process.
  • the first notification message is a paging message.
  • the at least one UE that supports the relay function initiates a discovery process.
  • the Paging message received by the UE supporting the relay function includes the information included in the Paging message of the base station in S508, and the information includes the UE supporting the relay function.
  • the UE supporting the relay function initiates a Relay discovery process.
  • the UE supporting the relay function when the UE supporting the relay function is in the ECM_IDLE state, and the Paging message includes the information included in the Paging message in the S508, the UE does not need to initiate the RRC connection establishment process, but only needs to initiate the Relay.
  • the discovery process when the UE supporting the relay function is in the ECM_IDLE state, and the Paging message includes the information included in the Paging message in the S508, the UE does not need to initiate the RRC connection establishment process, but only needs to initiate the Relay. The discovery process.
  • the base station After the base station determines that the remote UE finds and selects at least one UE that supports the relay function, the base station sends a fourth notification message to the UE that supports the relay function. Other UEs that support the relay function receive the fourth notification message.
  • the base station determines that the Remote UE finds and selects to support the relay After the function of the UE1, the base station sends a fourth notification message to the UE2 that supports the relay function.
  • the notification message is a paging message.
  • the UE2 that supports the relay function stops the discovery process after receiving the paging message.
  • the UE that supports the relay function in the ECM_IDLE state is further determined on the basis of the embodiment corresponding to FIG. 4, so that when the UE supporting the relay function is in the ECM_IDLE state, the support relay in the ECM_IDLE state can also be supported.
  • the functioning UE is determined to ensure that the terminal can be provided with the most suitable UE supporting the relay function.
  • FIG. 6 is a schematic flowchart of still another method for controlling device-to-device discovery according to an embodiment of the present invention.
  • the embodiment is based on a preferred embodiment of the embodiment shown in FIG.
  • the UE supporting the relay function is used to indicate the user equipment supporting the relay function
  • the Remote UE is used to represent the remote user equipment.
  • the same or similar content as the method shown in FIG. 3 can refer to the detailed description in FIG. 3 , and details are not described herein again.
  • the method may include the following steps:
  • the MME saves a first relay function parameter of the UE that supports the relay function.
  • the Remote UE sends a third request message to the MME, where the MME receives the third request message sent by the Remote UE.
  • the third request message includes a second relay function parameter set of the Remote UE.
  • the MME acquires a third relay function parameter set of the UE that supports the relay function to update the first relay function parameter set.
  • the MME determines, for the Remote UE, at least one UE that supports the relay function of the N UEs that support the relay function.
  • the MME sends a third notification message to the base station.
  • the base station receives the third notification message sent by the MME.
  • the third notification message is used to instruct the base station to send the first notification message to the at least one user equipment supporting the relay function.
  • the base station sends a first notification message to the at least one UE that supports the relay function determined in S606. At least one UE supporting the relay function receives the notification message.
  • the first notification message is a paging message.
  • the at least one UE supporting the relay function initiates a discovery process.
  • the UE that supports the relay function supported by the relay function is provided by the MME, so that the power consumption of the base station can be saved.
  • FIG. 7 is a schematic flowchart diagram of an embodiment of a method for controlling device-to-device discovery according to an embodiment of the present invention.
  • the same or similar content as the method shown in FIG. 3 can refer to the detailed description in FIG. 3 , and details are not described herein again.
  • the method may include the following steps:
  • the network device acquires a second relay function parameter set of the remote user equipment.
  • the network device acquires a second relay function parameter set of the remote user equipment.
  • the network device is a base station.
  • the second relay function parameter set includes at least one of the following relay function parameters:
  • the remote user equipment association identifier supported by the user equipment supporting the relay function the access mode of the device selection to the device connection currently selected by the remote user equipment, and the discovery process of the discovery process selected by the remote user equipment mechanism.
  • the method further includes:
  • the network device merges the third relay function parameter set into the second relay function parameter set to update the second relay function parameter set to obtain a new second relay function parameter set;
  • the first relay function parameter set of the at least one user equipment supporting the relay function includes the new second relay function parameter set.
  • the third relay function parameter set includes at least one of the following functional parameters:
  • the network device sends a notification message to the user equipment.
  • the user equipment receives a notification message sent by the network device.
  • the notification message is used to trigger the user setting if the user equipment supports a relay function.
  • the device initiates a device-to-device discovery process, and the notification message includes a communication parameter set in which the user equipment initiates a device-to-device discovery process, and the communication parameter set is determined based on the second relay function parameter set.
  • the notification message is a paging message.
  • the communication parameter set includes at least one of the following parameters:
  • Indication information for initiating the discovery process access mode of the device-to-device connection, public land network PLMN identity in the discovery process, carrier frequency of sending and/or receiving discovery messages in the discovery process a discovery mechanism of the discovery process and a pool of transmitting and/or receiving resources used to send and/or receive discovery messages during the discovery process.
  • the notification message includes a paging message.
  • the user equipment initiates a device-to-device discovery process when the relay function parameter set of the user equipment and the communication parameter set meet a preset matching relationship.
  • the relay function parameter set includes at least one of the following parameters:
  • the remote user equipment association identifier supported by the user equipment supporting the relay function, the device-to-device connection access mode supported by the user equipment supporting the relay function, and the user equipment supported by the relay function a public land network PLMN identifier, a carrier frequency supported by the user equipment supporting the relay function, and a discovery mechanism of the device-to-device discovery process supported by the user equipment supporting the relay function.
  • the user equipment monitors in each PO of the user and detects that the communication parameter set in the paging message matches the relay parameter set of the user equipment itself, the user equipment initiates a discovery process.
  • the user equipment can perform a discovery process according to the communication parameter set. For example, the user equipment may determine, according to the resource configuration information used by the remote user equipment for sending the discovery message, in the information, at which resource locations the reception of the discovery message should be performed.
  • the user equipment if the user equipment is in the RRC_IDLE state, and the Paging message includes the information that the base station includes in the Paging message and does not include the user equipment identifier of the user equipment, the user equipment does not need to initiate the RRC. Connection establishment process.
  • the network device acquires the second relay of the remote user equipment. a set of function parameters; the network device then sends a notification message to the user equipment, the user equipment supporting a relay function, the notification message including a communication parameter set of the user equipment initiating a device-to-device discovery process, the communication parameter set being based on the The second relay function parameter set is determined.
  • the user equipment receives the first notification message sent by the network device, where the first notification message is used to trigger at least one user equipment supporting the relay function to initiate a device-to-device discovery process, and at least one user equipment supporting the relay function is
  • the network device determines from the N user equipments supporting the relay function, the user equipment supports the relay function, and finally the user equipment initiates the discovery process based on the first notification message.
  • the communication parameter set of the device-to-device discovery process of the user equipment supporting the relay function meets the preset matching relationship, the user equipment initiates a discovery process, thereby reducing the non-satisfaction of the remote end.
  • the user equipment supporting the relay function required by the discovery function of the user equipment initiates unnecessary power consumption of the discovery process.
  • the discovery process only by the user equipment partially supporting the relay function, when the requirement of the remote user equipment is notified during the disvovery period, the resource consumption of the notification process can be saved, and the remote user equipment and the support relay can be accelerated.
  • the process of discovering each other between functional user devices For example, when the user equipment supporting the relay function needs to perform the carrier frequency of the discovery, the user equipment supporting the relay function can transmit or receive the discovery message only on the carrier frequency without attempting to try multiple carrier frequencies.
  • FIG. 8 is a schematic flowchart diagram of another method for controlling device-to-device discovery according to an embodiment of the present invention.
  • the network device is a base station
  • the UE supporting the relay function is used to indicate the user equipment supporting the relay function
  • the Remote UE is used to represent the remote user equipment.
  • the same or similar content as the method shown in FIG. 3 or FIG. 7 can refer to the detailed description in FIG. 3 or FIG. 7 , and details are not described herein again.
  • the method may include the following steps:
  • the Remote UE sends a second request message to the base station, where the base station receives the third request message sent by the Remote UE.
  • the second request message includes a second relay function parameter set of the Remote UE.
  • the base station acquires a third relay function parameter set of the UE supporting the relay function to update the first relay function parameter set.
  • the UE supporting the relay function includes a UE1 that supports a relay function and a UE2 that supports a relay function.
  • the base station sends a notification message to the UE that supports the relay function.
  • the UE supporting the relay function receives the notification message.
  • the notification message is used to trigger the user equipment to initiate a device-to-device discovery process, and the notification message includes a communication parameter set in which the user equipment initiates a device-to-device discovery process, and the communication parameter set is based on the The second relay function parameter set is determined.
  • the notification message is a paging message.
  • the notification message includes a time identifier, where the time identifier is used to indicate that the at least one user equipment supporting the relay function receives the first notification message and passes the preset time period corresponding to the time identifier. Stop the discovery process.
  • the preset time period indicated by the time identifier is a maximum duration of the discovery of the UE supporting the relay function, so that the UE supporting the relay function can be in the Remote UE and the relay function after receiving the first notification message. After the UE successfully establishes a connection, other UEs that support the relay function can automatically stop the discovery process.
  • the UE supporting the relay function initiates a device-to-device discovery process.
  • the relay function parameter set and the communication parameter set of the UE1 supporting the relay function satisfy a preset matching relationship.
  • the relay function parameter set and the communication parameter set of the UE1 supporting the relay function do not satisfy the preset matching relationship.
  • the UE2 supporting the relay function stops the device-to-device discovery process after a preset time period.
  • the user equipment when the communication parameter set of the device-to-device discovery process of the user equipment supporting the relay function meets the preset matching relationship, the user equipment initiates a discovery process. Therefore, the user equipment supporting the relay function that does not meet the discovery function requirement of the remote user equipment reduces unnecessary power consumption of the discovery process.
  • the user equipment that supports the relay function is stopped in the first notification message to stop the discovery process, so that the control of the discovery process is more flexible, and other user equipments supporting the relay function stop discovering in time. Process to reduce unnecessary power consumption.
  • FIG. 9 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • the network device 900 includes:
  • the obtaining module 910 is configured to acquire N first relay function parameter sets of the N user equipments that support the relay function, and the N first relay function parameter sets and the N user equipments that support the relay function Correspondingly, the N is a positive integer;
  • the obtaining module 910 is further configured to acquire a second relay function parameter set of the remote user equipment.
  • a determining module 920 configured to determine, for the remote user equipment, at least one user equipment supporting the relay function of the N user equipment supporting the relay function, the at least one user equipment supporting the relay function
  • the first relay function parameter set and the second relay function parameter set satisfy a preset matching relationship
  • the sending module 930 is configured to send, by the network device, the first notification message to the at least one user equipment that supports the relay function, where the first notification message is used to trigger the at least one user equipment initiating device that supports the relay function.
  • the process of discovery to the device is configured to send, by the network device, the first notification message to the at least one user equipment that supports the relay function, where the first notification message is used to trigger the at least one user equipment initiating device that supports the relay function.
  • the network device comprises a base station or a mobility management node entity (MME).
  • MME mobility management node entity
  • the acquiring, by the acquiring module 910, the N first relay function parameter sets of the N user equipments that support the relay function are specifically used to:
  • the MME Receiving a second notification message sent by the MME, where the second notification message includes a user equipment identifier of the N user equipments supporting the relay function and the N first relay function parameter sets.
  • the network device includes the base station
  • the sending module 930 is further configured to send, by the base station, a first request message to the MME, where the first request message includes the second relay function parameter set;
  • the network device 900 further includes:
  • the receiving module 940 is configured to receive a first request message feedback message that is sent by the MME in response to the first request message, where the first request feedback message includes a user identifier of the N user equipments that support the relay function, and The N first relay function parameter sets.
  • the acquiring unit 910 acquires a second relay function parameter set of the remote user equipment, including:
  • the network device acquires the second relay function parameter set of the remote user equipment from the remote user equipment.
  • the acquiring unit 910 acquires a second relay function parameter set of the remote user equipment, including:
  • the acquiring unit 910 acquires a second relay function parameter set of the remote user equipment, including:
  • the first relay function parameter set includes at least one of the following relay function parameters:
  • the remote user equipment association identifier supported by the user equipment supporting the relay function, the device-to-device connection access mode supported by the user equipment supporting the relay function, and the user equipment supported by the relay function The discovery mechanism of the discovery process.
  • the second relay function parameter set includes at least one of the following relay function parameters:
  • the remote user equipment association identifier supported by the user equipment supporting the relay function the access mode of the device selection to the device connection currently selected by the remote user equipment, and the discovery process of the discovery process selected by the remote user equipment mechanism.
  • the obtaining unit 910 is further configured to acquire a third relay function parameter set of the remote user equipment
  • the network device 900 further includes an updating unit 950, configured to merge the third relay function parameter set into the second relay function parameter set to update the second relay function parameter set to obtain a new second. Relay function parameter set;
  • the first relay function parameter set of the at least one user equipment supporting the relay function includes the new second relay function parameter set.
  • the third relay function parameter set includes at least one of the following functional parameters:
  • the first notification message includes at least one of the following parameters:
  • Instructing information for initiating the discovery process access mode of the device-to-device connection, carrier frequency of sending and/or receiving a discovery message in the discovery process, discovery machine of the discovery process And a pool of transmitting and/or receiving resources used to send and/or receive discovery messages during the discovery process.
  • the sending unit 930 sends the first notification message to the at least one user equipment that supports the relay function, including:
  • the third notification message includes at least one of the following parameters:
  • the user equipment identifier of the at least one user equipment supporting the relay function, the indication information for initiating the discovery process, the access mode of the device-to-device connection, and the sending and/or receiving discovery during the discovery process The carrier frequency of the message, the discovery mechanism of the discovery process, and the pool of transmit and/or receive resources used to send and/or receive discovery messages during the discovery process.
  • the sending unit 930 is further configured to:
  • the base station determines that one of the at least one user function supporting the relay function supports the relay function, and disconnects the user equipment that supports the relay function
  • the user equipment supporting the relay function other than the user equipment supporting the relay function sends a fourth notification message, where the fourth notification message is used to notify the other user equipment supporting the relay function to stop the discovery. process.
  • the fourth notification message includes at least one of the following parameters:
  • the remote user equipment association identifier supported by the user equipment supporting the relay function and the indication information for stopping the discovery process is not limited to the remote user equipment association identifier supported by the user equipment supporting the relay function and the indication information for stopping the discovery process.
  • the first notification message is a dedicated control message and/or the fourth notification message includes a dedicated control message.
  • the first notification message is a paging message and/or the fourth notification message includes a paging message.
  • the first notification message further includes: a user equipment identifier of the at least one user equipment supporting the relay function.
  • the first notification message includes a time identifier, where the time identifier is used to indicate that the at least one user equipment supporting the relay function receives the first notification message and passes the preset corresponding to the time identifier.
  • the discovery process is stopped after the time period is set.
  • At least one user equipment supporting the relay function of the N user equipments supporting the relay function is determined by the network device 900, and the network device 900 only triggers the determined at least one supported relay function.
  • the user equipment initiates a device-to-device discovery process, thereby reducing unnecessary power consumption of the user equipment supporting the relay function that does not satisfy the discovery function requirement of the remote user equipment.
  • the resource of the notification process can be saved. Consume and speed up the process of discovering each other between the remote user device and the user device supporting the relay function. For example, when the user equipment supporting the relay function needs to perform the carrier frequency of the discovery, the user equipment supporting the relay function can transmit or receive the discovery message only on the carrier frequency without attempting to try multiple carrier frequencies.
  • network device 900 is presented in the form of a unit.
  • a "unit” herein may refer to an application-specific integrated circuit (ASIC), a processor and memory that executes one or more software or firmware programs, integrated logic circuits, and/or other devices that provide the functionality described above. .
  • ASIC application-specific integrated circuit
  • FIG. 10 is a schematic structural diagram of another network device according to an embodiment of the present invention.
  • the network device 1000 includes:
  • the processor 1002 may also be a controller, and is represented as "controller/processor 1002" in FIG.
  • the transmitter/receiver 1001 is configured to support transmission and reception of information between the network side device and the terminal in the foregoing embodiment, and to support radio communication between the terminal and other terminals.
  • the processor 1002 performs various functions for communicating with the terminal.
  • On the uplink an uplink signal from the terminal is received via an antenna, demodulated by the receiver 1001 (eg, demodulating the high frequency signal into a baseband signal), and further processed by the processor 1002 to recover the terminal. Send to business data and signaling information.
  • traffic data and signaling messages are processed by processor 1002 and modulated by transmitter 1001 (eg, baseband signals are modulated into high frequency signals) No.) to generate a downlink signal and transmit it to the user equipment via the antenna.
  • transmitter 1001 eg, baseband signals are modulated into high frequency signals
  • No. baseband signals are modulated into high frequency signals
  • the processor 1002 is further configured to perform the corresponding steps in the foregoing method embodiments, and/or other processes of the technical solutions described in the embodiments of the present invention.
  • the network device 1000 may further include a memory 1003 for storing program codes and data of the network device 1000. Further, the network device 1000 may further include a communication unit 1004.
  • the communication unit 1004 is configured to support the network device to communicate with other network entities (eg, network devices in the core network, etc.). For example, in the LTE system, the communication unit 1004 may be an S1-U interface for supporting the network device to communicate with a Serving Gateway (SGW); or the communication unit 1004 may be an S1-MME interface.
  • SGW Serving Gateway
  • MME Mobility Management Entity
  • the network device 1000 includes a base station or an MME.
  • FIG. 10 only shows a simplified design of the network side device 1000.
  • the network side device 1000 may include any number of transmitters, receivers, processors, controllers, memories, communication units, etc., and all network devices that can implement the embodiments of the present invention are in the embodiment of the present invention. Within the scope of protection.
  • At least one user equipment supporting the relay function of the N user equipments supporting the relay function is determined by the network device 1000, and the network device 1000 only triggers the determined at least one supported relay function.
  • the user equipment initiates a device-to-device discovery process, thereby reducing unnecessary power consumption of the user equipment supporting the relay function that does not satisfy the discovery function requirement of the remote user equipment.
  • the resource of the notification process can be saved. Consume and speed up the process of discovering each other between the remote user device and the user device supporting the relay function. For example, when the user equipment supporting the relay function needs to perform the carrier frequency of the discovery, the user equipment supporting the relay function can transmit or receive the discovery message only on the carrier frequency without attempting to try multiple carrier frequencies.
  • FIG. 11 is a schematic structural diagram of a user equipment according to an embodiment of the present invention, such as As shown in FIG. 11, the user equipment 1100 includes:
  • the receiving module 1110 is configured to receive a first notification message sent by the network device, where the first notification message is used to trigger at least one user equipment supporting the relay function to initiate a device-to-device discovery process, where the at least one support relay
  • the functional user equipment is determined by the network device from N user equipments supporting the relay function, and the user equipment supports a relay function;
  • the initiating module 1120 is configured to initiate the discovery process based on the first notification message.
  • the initiating module 1120 is specifically configured to:
  • the user equipment initiates the discovery process based on the first notification message.
  • At least one user equipment 1100 supporting the relay function of the N user equipments 1100 supporting the relay function is determined by the network device, and the network device only triggers the determined at least one supported relay function.
  • the user equipment 1100 initiates a device-to-device discovery process, thereby reducing the unnecessary power consumption of the user equipment 1100 supporting the relay function that does not satisfy the discovery function requirement of the remote user equipment.
  • the notification process can be saved by first determining the part of the N user devices 1100 supporting the relay function that supports the relay function, thereby performing the process of notifying the remote user device during the discovery process during the discovery process.
  • the user equipment 1100 is presented in the form of a unit.
  • a "unit” herein may refer to an application-specific integrated circuit (ASIC), a processor and memory that executes one or more software or firmware programs, integrated logic circuits, and/or other devices that provide the functionality described above. .
  • ASIC application-specific integrated circuit
  • FIG. 12 is a schematic structural diagram of another user equipment according to an embodiment of the present invention. As shown in FIG. 12, the user equipment 1200 includes:
  • the processor 1203 may also be a controller, and is represented as "controller/processor 1203" in FIG.
  • the user equipment 1200 may further include a modem processor 1205.
  • the modem processor 1205 may include an encoder 1206, a modulator 1207, a decoder 1208, and a demodulator 1205.
  • transmitter 1201 conditions (eg, analog transforms, filters, amplifies, and upconverts, etc.) the output samples and generates an uplink signal that is transmitted via an antenna to the base station described in the above embodiments. .
  • the antenna receives the downlink signal transmitted by the base station in the above embodiment.
  • Receiver 1202 conditions (eg, filters, amplifies, downconverts, digitizes, etc.) the signals received from the antenna and provides input samples.
  • encoder 1206 receives the traffic data and signaling messages to be transmitted on the uplink and processes (e.g., formats, codes, and interleaves) the traffic data and signaling messages.
  • Modulator 1207 further processes (e.g., symbol maps and modulates) the encoded traffic data and signaling messages and provides output samples.
  • Demodulator 1209 processes (e.g., demodulates) the input samples and provides symbol estimates.
  • the decoder 1208 processes (e.g., deinterleaves and decodes) the symbol estimates and provides decoded data and signaling messages that are sent to the user equipment 1200.
  • Encoder 1206, modulator 1207, demodulator 1209, and decoder 1208 may be implemented by a composite modem processor 1205. These units are processed according to the radio access technology employed by the radio access network (e.g., access technologies of LTE and other evolved systems). It should be noted that when the user equipment 1200 does not include the modem processor 1205, the foregoing functions of the modem processor 1205 may also be completed by the processor 1203.
  • the processor 1203 controls and manages the action of the user equipment 1200, and is used to perform the processing performed by the user equipment 1200 in the foregoing embodiment of the present invention.
  • the processor 1203 is further configured to perform the corresponding steps in the foregoing method embodiments, and/or other processes of the technical solutions described in the present application.
  • the user equipment 1200 may further include a memory 1204 for storing program codes and data for the user equipment 1200.
  • At least one user equipment 1200 supporting the relay function of the N user equipments 1100 supporting the relay function is determined by the network device, and the network device only triggers the determined at least one supported relay function.
  • User equipment 1200 initiates a device-to-device discovery process, thereby The user equipment 1100 supporting the relay function that reduces the discovery function requirements of the remote user equipment initiates unnecessary power consumption of the discovery process.
  • the notification process can be saved by first determining a part of the N user devices 1200 supporting the relay function that support the relay function, thereby performing the process of notifying the remote user device during the discovery process during the discovery process.
  • FIG. 13 is a schematic structural diagram of a user equipment according to an embodiment of the present invention. As shown in FIG. 13, the user equipment 1300 includes:
  • the receiving module 1310 is configured to receive a notification message that is sent by the network device, where the user equipment supports a relay function, where the notification message is used to trigger the user equipment to initiate a device-to-device discovery process, where the notification message includes the The communication parameter set of the discovery process initiated by the user equipment from the device to the device;
  • the initiating module 1320 is configured to: when the relay function parameter set of the user equipment and the communication parameter set meet a preset matching relationship, the user equipment initiates a device-to-device discovery process.
  • the network device comprises a base station.
  • the communication parameter set includes at least one of the following parameters:
  • Indication information for initiating the discovery process access mode of the device-to-device connection, public land network PLMN identity in the discovery process, carrier frequency of sending and/or receiving discovery messages in the discovery process a discovery mechanism of the discovery process and a pool of transmitting and/or receiving resources used to send and/or receive discovery messages during the discovery process.
  • the relay function parameter set includes at least one of the following parameters:
  • the remote user equipment association identifier supported by the user equipment supporting the relay function, the device-to-device connection access mode supported by the user equipment supporting the relay function, and the user equipment supported by the relay function a public land network PLMN identifier, a carrier frequency supported by the user equipment supporting the relay function, and a discovery mechanism of the device-to-device discovery process supported by the user equipment supporting the relay function.
  • the notification message includes a paging message, where the user equipment initiates device-to-device discovery if the relay function parameter set of the user equipment and the communication parameter set meet a preset matching relationship.
  • the receiving module 1310 is further configured to receive the paging message at a preset listening time.
  • the user equipment 1300 when the communication parameter set of the user equipment 1300 supporting the relay function and the communication parameter set of the device-to-device discovery process of the user equipment meet the preset matching relationship, the user equipment 1300 initiates a discovery process. Thereby, the user equipment 1300 supporting the relay function that does not satisfy the discovery function requirement of the remote user equipment initiates unnecessary power consumption of the discovery process.
  • the user equipment 1300 by performing the discovery process only by the user equipment 1300 partially supporting the relay function, when the requirement of the remote user equipment is notified during the disvovery period, the resource consumption of the notification process can be saved, and the remote user equipment and support are accelerated.
  • a process of mutual discovery between functional user devices 1300 For example, when the user equipment supporting the relay function needs to perform the carrier frequency of the discovery, the user equipment supporting the relay function can transmit or receive the discovery message only on the carrier frequency without attempting to try multiple carrier frequencies.
  • the user device 1300 is presented in the form of a unit.
  • a "unit” herein may refer to an application-specific integrated circuit (ASIC), a processor and memory that executes one or more software or firmware programs, integrated logic circuits, and/or other devices that provide the functionality described above. .
  • ASIC application-specific integrated circuit
  • FIG. 14 is a schematic structural diagram of another user equipment according to an embodiment of the present invention.
  • the user equipment 1400 includes:
  • the processor 1403 may also be a controller, and is represented as "controller/processor 1403" in FIG.
  • the user equipment 1400 may further include a modem processor 1405.
  • the modem processor 1405 may include an encoder 1406, a modulator 1407, a decoder 1408, and a demodulator 1405.
  • transmitter 1401 is tuned (eg, analog conversion, filtering, amplification, and upconversion)
  • the output samples and generates an uplink signal that is transmitted via an antenna to the base station described in the above embodiments.
  • the antenna receives the downlink signal transmitted by the base station in the above embodiment.
  • Receiver 1402 conditions (eg, filters, amplifies, downconverts, digitizes, etc.) the signals received from the antenna and provides input samples.
  • encoder 1406 receives the traffic data and signaling messages to be transmitted on the uplink and processes (e.g., formats, codes, and interleaves) the traffic data and signaling messages.
  • Modulator 1407 further processes (e.g., symbol maps and modulates) the encoded traffic data and signaling messages and provides output samples.
  • Demodulator 1409 processes (e.g., demodulates) the input samples and provides symbol estimates.
  • the decoder 1408 processes (e.g., deinterleaves and decodes) the symbol estimates and provides decoded data and signaling messages that are sent to the user equipment 1400.
  • Encoder 1406, modulator 1407, demodulator 1409, and decoder 1408 may be implemented by a composite modem processor 1405. These units are processed according to the radio access technology employed by the radio access network (e.g., access technologies of LTE and other evolved systems). It should be noted that when the user equipment 1400 does not include the modem processor 1405, the foregoing functions of the modem processor 1405 may also be completed by the processor 1403.
  • the processor 1403 controls and manages the actions of the user equipment 1400 for performing the processing performed by the user equipment 1400 in the foregoing embodiment of the present invention.
  • the processor 1403 is also configured to perform the corresponding steps in the foregoing method embodiments, and/or other processes of the technical solutions described herein.
  • the user equipment 1400 may further include a memory 1404 for storing program codes and data for the user equipment 1400.
  • At least one user equipment 1400 supporting the relay function of the N user equipments 1400 supporting the relay function is determined by the network device, and the network device only triggers the determined at least one supported relay function.
  • the user equipment 1400 initiates a device-to-device discovery process, thereby reducing the unnecessary power consumption of the user equipment 1100 supporting the relay function that does not satisfy the discovery function requirement of the remote user equipment.
  • the notification process can be saved by first determining a part of the N user devices 1400 supporting the relay function to support the relay function, thereby performing the process of notifying the remote user device during the discovery process during the discovery process.
  • FIG. 15 is a schematic structural diagram of a network device according to an embodiment of the present invention. As shown in FIG. 15, the network device 1500 includes:
  • the obtaining module 1510 is configured to obtain a second relay function parameter set of the remote user equipment.
  • the sending module 1520 is configured to send a notification message to the user equipment, where the user equipment supports a relay function, where the notification message is used to trigger the user equipment to initiate a device-to-device discovery process, where the notification message includes the user
  • the device initiates a communication parameter set of the device-to-device discovery process, the communication parameter set being determined based on the second relay function parameter set.
  • the network device 1500 includes a base station.
  • the obtaining module 1510 is further configured to acquire a third relay function parameter set of the remote user equipment.
  • the network device 1500 further includes an update module 1530, configured to merge the third relay function parameter set into the second relay function parameter set to update the second relay function parameter set to obtain a new second. Relay function parameter set;
  • the first relay function parameter set of the at least one user equipment supporting the relay function includes the new second relay function parameter set.
  • the communication parameter set includes at least one of the following parameters:
  • Indication information for initiating the discovery process access mode of the device-to-device connection, public land network PLMN identity in the discovery process, carrier frequency of sending and/or receiving discovery messages in the discovery process a discovery mechanism of the discovery process and a pool of transmitting and/or receiving resources used to send and/or receive discovery messages during the discovery process.
  • the notification message includes a paging message.
  • the user equipment when the communication parameter set of the user equipment that supports the relay function and the communication parameter set of the device-to-device discovery process meets the preset matching relationship, the user equipment initiates a discovery process, thereby reducing A user equipment supporting the relay function that does not meet the discovery function requirements of the remote user equipment initiates unnecessary power consumption of the discovery process.
  • the discovery process only by the user equipment partially supporting the relay function, when the requirement of the remote user equipment is notified during the disvovery period, the resource consumption of the notification process can be saved, and the remote user equipment and the support relay can be accelerated.
  • the user equipment supporting the relay function needs to perform the carrier frequency of the discovery, the user equipment supporting the relay function can transmit or receive the discovery message only on the carrier frequency without attempting to try multiple carrier frequencies.
  • network device 1500 is presented in the form of a unit.
  • a "unit” herein may refer to an application-specific integrated circuit (ASIC), a processor and memory that executes one or more software or firmware programs, integrated logic circuits, and/or other devices that provide the functionality described above. .
  • ASIC application-specific integrated circuit
  • FIG. 16 is a schematic structural diagram of another network device according to an embodiment of the present invention. As shown in FIG. 16, the network device 1600 includes:
  • the processor 1602 may also be a controller, and is represented as "controller/processor 1602" in FIG.
  • the transmitter/receiver 1601 is configured to support transmission and reception of information between the network side device and the terminal in the above embodiment, and to support radio communication between the terminal and other terminals.
  • the processor 1602 performs various functions for communicating with the terminal.
  • On the uplink an uplink signal from the terminal is received via an antenna, demodulated by the receiver 1601 (eg, demodulating the high frequency signal into a baseband signal), and further processed by the processor 1602 to recover the terminal. Send to business data and signaling information.
  • the traffic data and signaling messages are processed by the processor 1602 and modulated by the transmitter 1601 (e.g., modulating the baseband signal into a high frequency signal) to generate a downlink signal and transmitted to the user via the antenna. device.
  • the processor 1602 is also configured to perform the corresponding steps in the foregoing method embodiments, and/or other processes of the technical solutions described in the embodiments of the present invention.
  • the network device 1600 may further include a memory 1603 for storing program codes and data of the network device 1600.
  • network device 1600 can also include communication unit 1604.
  • the communication unit 1604 is configured to support the network device to communicate with other network entities (eg, network devices in the core network, etc.).
  • the communication unit 1604 can be an S1-U interface for The network device is configured to communicate with a Serving Gateway (SGW).
  • SGW Serving Gateway
  • the communication unit 1604 may be an S1-MME interface for supporting the network device to communicate with a Mobility Management Entity (MME).
  • MME Mobility Management Entity
  • the network device 1600 includes a base station or an MME.
  • Figure 16 only shows a simplified design of the network side device 1600.
  • the network side device 1600 may include any number of transmitters, receivers, processors, controllers, memories, communication units, etc., and all network devices that can implement the embodiments of the present invention are in the embodiment of the present invention. Within the scope of protection.
  • At least one user equipment supporting the relay function of the N user equipments supporting the relay function is determined by the network device 1600, and the network device 1600 is only triggered to trigger the determined at least one supported relay function.
  • the user equipment initiates a device-to-device discovery process, thereby reducing unnecessary power consumption of the user equipment supporting the relay function that does not satisfy the discovery function requirement of the remote user equipment.
  • the resource of the notification process can be saved. Consume and speed up the process of discovering each other between the remote user device and the user device supporting the relay function. For example, when the user equipment supporting the relay function needs to perform the carrier frequency of the discovery, the user equipment supporting the relay function can transmit or receive the discovery message only on the carrier frequency without attempting to try multiple carrier frequencies.
  • the embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium may store a program, and the program includes some or all of the steps of the method for controlling device-to-device discovery described in the foregoing method embodiments.
  • the disclosed apparatus may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical or otherwise.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and the like. .

Landscapes

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

Abstract

本发明实施例公开了一种控制设备到设备间发现的方法，所述方法包括：网络设备获取N个支持中继功能的用户设备的N个第一中继功能参数集，；所述网络设备获取远端用户设备的第二中继功能参数集；所述网络设备为所述远端用户设备确定所述N个支持中继功能的用户设备中的至少一个支持中继功能的用户设备；所述网络设备向所述至少一个支持中继功能的用户设备发送第一通知消息以触发所述至少一个支持中继功能的用户设备发起设备到设备间的发现过程。通过确定至少一个支持中继功能的用户设备发起设备到设备间的发现过程，从而减少不满足远端用户设备的发现功能需求的支持中继功能的用户设备发起该发现过程的不必要的功率消耗。

Description

一种控制设备到设备间发现的方法及相关设备 技术领域
本发明涉及通信技术领域，具体涉及一种控制设备到设备间发现的方法及相关设备。
背景技术
设备到设备(Device-to-Device，D2D)的通信方式，指的是发送端将数据直接发送给接收端，无需通过基站或者蜂窝网络进行中转的通信方式。D2D通信方式中一种比较特殊的方式是一个用户设备(User Equipment)(远端用户设备，Remote UE)通过另外一个具备中继功能的用户设备(中继设备，Relay UE)与网络进行连接，该种通过中继设备与网络进行连接的方式可在远端用户设备没有处于网络覆盖的情况下也能顺利接入网络以及可以减少远端用户设备的接入功耗。
在远端用户设备利用中继设备接入网络之前，远端用户设备首先需要发现可以为其提供中继Relay支持的用户设备。目前，支持relay功能的用户设备只要在获取到基站配置的用于发送或者接收discovery message的资源，并且满足基站配置的Uu口的信道质量条件即开始执行discovery过程，而此时，有可能该执行discovery过程的用户设备无法满足远端用户设备的中继需求，导致该用户设备不能为远端用户设备所用，那么该用户设备所执行的discovery过程将为无用discovery过程，从而导致必要的功率消耗。
发明内容
本发明实施例提供了一种控制设备到设备间发现的方法及相关设备，以期可以减少无用discovery过程。
第一方面，本发明实施例提供了一种控制设备到设备间发现的方法，该方法包括：网络设备获取N个支持中继功能的用户设备的N个第一中继功能参数集，该N个第一中继功能参数集与N个支持中继功能的用户设备对应，N为正整数；然后网络设备再获取远端用户设备的第二中继功能参数集；接下来网络设备为远端用户设备确定该N个支持中继功能的用户设备中的至少一个 支持中继功能的用户设备，其中，该至少一个支持中继功能的用户设备的第一中继功能参数集与第二中继功能参数集满足预设匹配关系；最后网络设备向该至少一个支持中继功能的用户设备发送第一通知消息，其中，该第一通知消息用于触发上述至少一个支持中继功能的用户设备发起设备到设备间的发现过程。
本发明实施例提供的方案中，通过网络设备确定出N个支持中继功能的用户设备中的至少一个支持中继功能的用户设备，并使网络设备只触发所确定的至少一个支持中继功能的用户设备发起设备到设备间的发现过程，从而减少不满足远端用户设备的发现功能需求的支持中继功能的用户设备发起该发现过程的不必要的功率消耗。
更进一步地，通过首先确定出N个支持中继功能的用户设备中的部分支持中继功能的用户设备，从而执行发现过程中通知远端用户设备的disvovery期间需求时，可以节约通知过程的资源消耗，并加快远端用户设备与支持中继功能的用户设备之间相互发现的过程。例如，当通知支持中继功能的用户设备需要进行discovery的载频后，支持中继功能的用户设备可以只在该载频上去发送或者接收discovery message，而不需要去尝试多个载频。
在一个可能的设计中，所述网络设备包括基站或移动管理节点实体(MME)。在本发明实施例可以利用不同的网络设备实体来确定出N个支持中继功能的用户设备中的至少一个支持中继功能的用户设备，使得该控制设备到设备间发现的方法更为灵活。
在一个可能的设计中，若所述网络设备包括基站，所述网络设备获取N个支持中继功能的用户设备的N个第一中继功能参数集，包括：该基站接收MME发送的第二通知消息，该第二通知消息包括N个支持中继功能的用户设备的用户设备标识以及该N个第一中继功能参数集。
在一个可能的设计中，若所述网络设备包括所述基站，所述网络设备获取N个支持中继功能的用户设备的N个第一中继功能参数集，包括：基站向MME发送第一请求消息，其中，该第一请求消息包括第二中继功能参数集；然后基站再接收MME响应该第一请求消息而返回的第一请求消息反馈消息，该第一请求反馈消息包括N个支持中继功能的用户设备的用户标识以及N个第一中 继功能参数集。
通过由MME获取并保存N个支持中继功能的用户设备的N个第一中继功能参数集，然后基站主动或被动地从MME处获取该N个第一中继功能参数集，从而可以减少基站的功耗，并且使得N个第一中继功能参数集的获取方式更为灵活。
在一个可能的设计中，网络设备获取远端用户设备的第二中继功能参数集，包括：网络设备从远端用户设备获取远端用户设备的第二中继功能参数集。
在一个可能的设计中，若网络设备为基站，网络设备获取远端用户设备的第二中继功能参数集，包括：基站接收远端用户设备发送的第二请求消息，该第二请求消息包括第二中继功能参数集。
在一个可能的设计中，若所述网络设备为MME，网络设备获取远端用户设备的第二中继功能参数集，包括：MME接收远端用户设备发送的第三请求消息，该第三请求消息包括第二中继功能参数集。
在一个可能的设计中，所述第一中继功能参数集包括以下中继功能参数中的至少一种：所述支持中继功能的用户设备支持的远端用户设备关联标识，所述支持中继功能的用户设备支持的设备到设备间连接的接入方式以及所述支持中继功能的用户设备支持的所述发现过程的发现机制。
在一个可能的设计中，所述第二中继功能参数集包括以下中继功能参数中的至少一种：所述支持中继功能的用户设备支持的远端用户设备关联标识，所述远端用户设备当前选择的设备到设备连接的接入方式以及所述远端用户设备选择的所述发现过程的发现机制。
通过在第一中继功能参数集中包括与支持中继功能的用户设备的中继功能相关的一些功能需求参数，以及在第二中继功能参数集中包括远端用户设备的与中继功能相关的功能需求参数，从而使得将第一中继功能参数与远端设备的第二功能参数集进行匹配以确定N个支持中继功能的用户设备时，能根据情况选择符合需求的支持中继功能的用户设备。
在一个可能的设计中，上述方法还包括：网络设备获取远端用户设备的第三中继功能参数集；然后网络设备将该第三中继功能参数集并入第二中继功能参数集中以更新第二中继功能参数集得到新的第二中继功能参数集；上述至少 一个支持中继功能的用户设备的第一中继功能参数集包括该新的第二中继功能参数集。
在一个可能的设计中，上述第三中继功能参数集包括以下功能参数中的至少一种：远端用户设备当前选择的公共陆地网络PLMN标识，远端用户设备当前的服务频率。
通过网络设备进一步确定与远端用户设备的中继功能相关的功能需求参数，从而使得能更为准确地匹配符合需求的支持中继功能的用户设备。
在一个可能的设计中，上述第一通知消息包括以下参数中的至少一种：用于发起所述发现过程的指示信息，所述设备到设备间连接的接入方式，所述发现过程中发送和/或接收发现消息的载波频率，所述发现过程的发现机制以及所述发现过程中发送和/或接收发现消息所使用的发送和/或接收资源池。通过在第一通知消息中包括上述发现过程的参数以及指示信息，从而使得支持中继功能的用户设备在接收到该第一通知消息后能根据该第一通知消息发起发现过程。
在一个可能的设计中，若网络设备为MME，该网络设备向至少一个支持中继功能的用户设备发送第一通知消息，包括：MME向基站发送第三通知消息，该第三通知消息用于指示基站向所述至少一个支持中继功能的用户设备发送所述第一通知消息。
在一个可能的设计中，上述第三通知消息包括以下参数中的至少一种：所述至少一个支持中继功能的用户设备的用户设备标识，用于发起所述发现过程的指示信息，所述设备到设备间连接的接入方式，所述发现过程中发送和/或接收发现消息的载波频率，所述发现过程的发现机制以及所述发现过程中发送和/或接收发现消息所使用的发送和/或接收资源池。当由MME确定出来至少一个支持中继功能的用户设备后，需要通过基站发送第一通知消息通知该至少一个支持中继功能的用户设备，所以可以由MME向基站发送第三通知消息指示基站发送第一通知消息。
在一个可能的设计中，所述方法还包括：在基站确定出至少一个支持中继功能的用户设备中的一个支持中继功能的用户设备与远端用户设备连接后，基站向该至少一个支持中继功能的用户设备中除去所述一个支持中继功能的用 户设备之外的其它支持中继功能的用户设备发送第四通知消息，该第四通知消息用于通知其它支持中继功能的用户设备停止所述发现过程。
在一个可能的设计中，所述第四通知消息包括以下参数中的至少一种：所述支持中继功能的用户设备支持的远端用户设备关联标识以及用于停止所述发现过程的指示信息。通过向支持中继功能的用户设备发送第四通知消息来停止发现过程，从而使得在远端用户设备已经成功与某一个支持中继功能的用户设备建立连接后，让其它支持中继功能的用户设备及时停止发现过程，减少不必要的功率消耗。
在一个可能的设计中，若支持中继功能的用户设备处于连接状态，该第一通知消息为专用控制消息。
在一个可能的设计中，若支持中继功能的用户设备处于连接状态，该第四通知消息包括专用控制消息。
可以理解，在支持中继功能的用户设备处于连接状态时，通过专用控制消息来发送第四通知消息使得消息的发送效率高效。
在一个可能的设计中，若支持中继功能的用户设备处于空闲状态或连接状态，该第一通知消息为寻呼消息。
在一个可能的设计中，若支持中继功能的用户设备处于空闲状态或连接状态，该所述第四通知消息包括寻呼消息。
在一个可能的设计中，若第一通知消息为寻呼消息，第一通知消息还包括：所述至少一个支持中继功能的用户设备的用户设备标识。
在一个可能的设计中，第一通知消息包括时间标识，该时间标识用于指示所述至少一个支持中继功能的用户设备在接收到所述第一通知消息并经过所述时间标识对应的预设时间段后停止所述发现过程。
可以理解，通过在第一通知消息中包括时间标识用于控制支持中继功能的用户设备停止发现过程，使得对发现过程的控制更为灵活，让其它支持中继功能的用户设备及时停止发现过程，减少不必要的功率消耗。
第二方面，本发明实施例提供了一种控制设备到设备间发现的方法，该方法包括：用户设备接收网络设备发送的第一通知消息，该第一通知消息用于触发至少一个支持中继功能的用户设备发起设备到设备间的发现过程，该至少一 个支持中继功能的用户设备为网络设备从N个支持中继功能的用户设备中所确定，其中，该用户设备支持中继功能；然后用户设备再基于该第一通知消息发起上述发现过程。
本发明实施例提供的方案中，通过网络设备确定出N个支持中继功能的用户设备中的至少一个支持中继功能的用户设备，并使网络设备只触发所确定的至少一个支持中继功能的用户设备发起设备到设备间的发现过程，从而减少不满足远端用户设备的发现功能需求的支持中继功能的用户设备发起该发现过程的不必要的功率消耗。
更进一步地，通过首先确定出N个支持中继功能的用户设备中的部分支持中继功能的用户设备，从而执行发现过程中通知远端用户设备的disvovery期间需求时，可以节约通知过程的资源消耗，并加快远端用户设备与支持中继功能的用户设备之间相互发现的过程。例如，当通知支持中继功能的用户设备需要进行discovery的载频后，支持中继功能的用户设备可以只在该载频上去发送或者接收discovery message，而不需要去尝试多个载频。
在一个可能的设计中，若第一通知消息包括寻呼消息，该用户设备基于第一通知消息发起上述发现过程，包括：用户设备在预设监听时刻接收该寻呼消息；若第一通知消息包含用户设备的用户设备标识，则用户设备基于第一通知消息发起上述发现过程。
通过在支持中继功能的用户设备处于不同的状态时，使用不同的通知消息，使得更符合通信需求，并且在支持通过专用控制消息来通知处于连接状态的支持中继功能的用户设备，将使得通知效率较高。
第三方面，本发明实施例提供了一种控制设备到设备间发现的方法，该方法包括：用户设备接收网络设备发送的通知消息，该用户设备支持中继功能，该通知消息用于触发用户设备发起设备到设备间的发现过程，该通知消息包括用户设备发起设备到设备间的发现过程的通信参数集；在用户设备的中继功能参数集与通信参数集满足预设匹配关系的情况下，该用户设备发起设备到设备间的发现过程。
本发明实施例提供的方案中，通过在支持中继功能的用户设备的中继功能参数集与用户设备发起设备到设备间的发现过程的通信参数集满足预设匹配 关系时，该用户设备发起发现过程，从而减少不满足远端用户设备的发现功能需求的支持中继功能的用户设备发起该发现过程的不必要的功率消耗。
更进一步地，通过只由部分支持中继功能的用户设备执行发现过程，从而在通知远端用户设备的disvovery期间需求时，可以节约通知过程的资源消耗，并加快远端用户设备与支持中继功能的用户设备之间相互发现的过程。例如，当通知支持中继功能的用户设备需要进行discovery的载频后，支持中继功能的用户设备可以只在该载频上去发送或者接收discovery message，而不需要去尝试多个载频。
在一个可能的设计中，所述网络设备包括基站。
在一个可能的设计中，所述通信参数集包括以下参数中的至少一种：用于发起所述发现过程的指示信息，所述设备到设备间连接的接入方式，所述发现过程中的公共陆地网络PLMN标识，所述发现过程中发送和/或接收发现消息的载波频率，所述发现过程的发现机制以及所述发现过程中发送和/或接收发现消息所使用的发送和/或接收资源池。
在一个可能的设计中，上述中继功能参数集包括以下参数中的至少一种：所述支持中继功能的用户设备支持的远端用户设备关联标识，所述支持中继功能的用户设备支持的设备到设备间连接的接入方式，所述支持中继功能的用户设备支持的公共陆地网络PLMN标识，所述支持中继功能的用户设备支持的载波频率，所述支持中继功能的用户设备支持的所述设备到设备间发现过程的发现机制。通过在通信参数集中包括与发现过程相关的需求参数，然后再基于该需求参数去与中继功能参数集匹配寻找满足需求的支持中继功能的用户设备，从而使得能选择出来符合需求的支持中继功能的用户设备，再进一步减少不满足远端用户设备的发现功能需求的支持中继功能的用户设备发起该发现过程的不必要的功率消耗。
在一个可能的设计中，该通知消息包括寻呼消息，在用户设备的中继功能参数集与通信参数集满足预设匹配关系的情况下，该用户设备发起设备到设备间的发现过程之前，所述方法还包括：用户设备在预设监听时刻接收该寻呼消息。
第四方面，本发明实施例提供了一种控制设备到设备间发现的方法，该方 法包括：网络设备获取远端用户设备的第二中继功能参数集；然后网络设备向用户设备发送通知消息，该用户设备支持中继功能，上述通知消息用于触发用户设备发起设备到设备间的发现过程，该通知消息包括用户设备发起设备到设备间的发现过程的通信参数集，该通信参数集基于第二中继功能参数集确定。
本发明实施例提供的方案中，通过在支持中继功能的用户设备的中继功能参数集与用户设备发起设备到设备间的发现过程的通信参数集满足预设匹配关系时，该用户设备发起发现过程，从而减少不满足远端用户设备的发现功能需求的支持中继功能的用户设备发起该发现过程的不必要的功率消耗。
更进一步地，通过只由部分支持中继功能的用户设备执行发现过程，从而在通知远端用户设备的disvovery期间需求时，可以节约通知过程的资源消耗，并加快远端用户设备与支持中继功能的用户设备之间相互发现的过程。例如，当通知支持中继功能的用户设备需要进行discovery的载频后，支持中继功能的用户设备可以只在该载频上去发送或者接收discovery message，而不需要去尝试多个载频。
在一个可能的设计中，所述网络设备包括基站。
在一个可能的设计中，所述方法还包括：网络设备获取远端用户设备的第三中继功能参数集；网络设备将第三中继功能参数集并入第二中继功能参数集中以更新第二中继功能参数集得到新的第二中继功能参数集；至少一个支持中继功能的用户设备的第一中继功能参数集包括新的第二中继功能参数集。通过网络设备进一步确定与远端用户设备的中继功能相关的功能需求参数，从而使得能更为准确地匹配符合需求的支持中继功能的用户设备。
在一个可能的设计中，所述通信参数集包括以下参数中的至少一种：用于发起所述发现过程的指示信息，所述设备到设备间连接的接入方式，所述发现过程中的公共陆地网络PLMN标识，所述发现过程中发送和/或接收发现消息的载波频率，所述发现过程的发现机制以及所述发现过程中发送和/或接收发现消息所使用的发送和/或接收资源池。通过在通信参数集中包括与发现过程相关的需求参数，然后再基于该需求参数去与中继功能参数集匹配寻找满足需求的支持中继功能的用户设备，从而使得能选择出来符合需求的支持中继功能的用户设备，再进一步减少不满足远端用户设备的发现功能需求的支持中继功 能的用户设备发起该发现过程的不必要的功率消耗。
在一个可能的设计中，所述通知消息包括寻呼消息。
第五方面，本发明实施例提供一种网络设备，该网络设备具有实现上述第一方面的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。
在一个可能的设计中，该网络设备可以为基站或者MME，或者，也可以为其它网络节点，例如，服务GPRS支持节点、非接入层的网络实体或无线控制资源层的网络实体。
在一个可能的设计中，当网络设备为基站时，基站的结构中包括处理器、发射器和接收器，所述处理器被配置为支持基站执行上述方法中相应的功能。所述发射器和接收器用于支持基站与用户设备以及MME之间的通信。进一步的，基站还可以包括存储器，所述存储器用于与处理器耦合，其保存基站必要的程序指令和数据。
在一个可能的设计中，当网络设备为MME时，MME的结构中包括处理器、发射器和接收器，所述处理器被配置为支持MME执行上述方法中相应的功能。所述发射器和接收器用于支持MME与用户设备以及基站之间的通信。进一步的，MME还可以包括存储器，所述存储器用于与处理器耦合，其保存基站必要的程序指令和数据。
第六方面，本发明实施例提供一种用户设备，该用户设备具有实现上述第二方面的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。
在一个可能的设计中，用户设备包括处理器、接收器和发射器，所述处理器被配置为支持用户设备执行上述方法中相应的功能。所述接收器和发射器用于支持用户设备与网络设备之间的通信。进一步的，用户设备还可以包括存储器，所述存储器用于与处理器耦合，其保存用户设备必要的程序指令和数据。
第七方面，本发明实施例提供一种用户设备，该用户设备具有实现上述第三方面的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。
在一个可能的设计中，用户设备包括处理器、接收器和发射器，所述处理器被配置为支持用户设备执行上述方法中相应的功能。所述接收器和发射器用 于支持用户设备与网络设备之间的通信。进一步的，用户设备还可以包括存储器，所述存储器用于与处理器耦合，其保存用户设备必要的程序指令和数据。
第八方面，本发明实施例提供一种网络设备，该网络设备具有实现上述第四方面的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。
在一个可能的设计中，该网络设备可以为基站或者MME，或者，也可以为其它网络节点，例如，服务GPRS支持节点、非接入层的网络实体或无线控制资源层的网络实体。
在一个可能的设计中，当网络设备为基站时，基站的结构中包括处理器、发射器和接收器，所述处理器被配置为支持基站执行上述方法中相应的功能。所述发射器和接收器用于支持基站与用户设备之间的通信。进一步的，基站还可以包括存储器，所述存储器用于与处理器耦合，其保存基站必要的程序指令和数据。
在一个可能的设计中，当网络设备为MME时，MME的结构中包括处理器、发射器和接收器，所述处理器被配置为支持MME执行上述方法中相应的功能。所述发射器和接收器用于支持MME与用户设备以及基站之间的通信。进一步的，MME还可以包括存储器，所述存储器用于与处理器耦合，其保存基站必要的程序指令和数据。
第九方面，本发明实施例提供一种计算机存储介质，用于储存为上述用于第五方面所述的网络设备所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
第十方面，本发明实施例提供一种计算机存储介质，用于储存为上述用于第六方面所述的用户设备所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
第十一方面，本发明实施例提供一种计算机存储介质，用于储存为上述用于第七方面所述的用户设备所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
第十二方面，本发明实施例提供一种计算机存储介质，用于储存为上述用于第八方面所述的网络设备所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
相较于现有技术，本发明实施例提供的方案中，通过网络设备确定出N个支持中继功能的用户设备中的至少一个支持中继功能的用户设备，并使网络设备只触发所确定的至少一个支持中继功能的用户设备发起设备到设备间的发现过程，从而减少不满足远端用户设备的发现功能需求的支持中继功能的用户设备发起该发现过程的不必要的功率消耗。
更进一步地，通过首先确定出N个支持中继功能的用户设备中的部分支持中继功能的用户设备，从而执行发现过程中通知远端用户设备的disvovery期间需求时，可以节约通知过程的资源消耗，并加快远端用户设备与支持中继功能的用户设备之间相互发现的过程。例如，当通知支持中继功能的用户设备需要进行discovery的载频后，支持中继功能的用户设备可以只在该载频上去发送或者接收discovery message，而不需要去尝试多个载频。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1-a是本发明实施例提供的一种控制设备到设备间发现的系统的网络架构图；
图1-b是本发明实施例提供的另一种控制设备到设备间发现的系统的网络架构图；
图2-a是本发明实施例提供的一种设备到设备间发现的机制示意图；
图2-b是本发明实施例提供的另一种设备到设备间发现的机制示意图；
图3是本发明实施例提供的一种控制设备到设备间发现的方法的实施例流程示意图；
图4是本发明实施例提供的另一种控制设备到设备间发现的方法的流程示意图；
图5是本发明实施例提供的又一种控制设备到设备间发现的方法的流程示意图；
图6是本发明实施例提供的又一种控制设备到设备间发现的方法的流程示意图；
图7是本发明实施例提供的一种控制设备到设备间发现的方法的实施例流程示意图；
图8是本发明实施例提供的另一种控制设备到设备间发现的方法的流程示意图；
图9是本发明实施例提供的一种网络设备的结构示意图；
图10是本发明实施例提供的另一种网络设备的结构示意图；
图11是本发明实施例提供的一种用户设备的结构示意图；
图12是本发明实施例提供的另一种用户设备的结构示意图；
图13是本发明实施例提供的一种用户设备的结构示意图；
图14是本发明实施例提供的另一种用户设备的结构示意图；
图15是本发明实施例提供的一种网络设备的结构示意图；
图16是本发明实施例提供的另一种网络设备的结构示意图。
具体实施方式
本发明实施例提供了一种控制设备到设备间发现的方法及相关设备，以期可以减少无用discovery过程。
为了使本技术领域的人员更好地理解本发明方案，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分的实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本发明保护的范围。
本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”和“第三”等是用于区别不同对象，而非用于描述特定顺序。此外，术语“包括”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本发明的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
首先参见图1-a和图1-b，图1-a是本发明实施例提供的一种控制设备到设备间发现的系统的网络架构图，图1-b是本发明实施例提供的另一种控制设备到设备间发现的系统的网络架构图。本发明实施例所提供的控制设备到设备间发现的方法可基于这两个网络架构图来执行。在上述网络架构图中，包括远端用户设备110，至少一个支持中继功能的用户设备120以及基站130，可选地，还可以包括移动管理节点实体140(Mobility Management Entity，简称MME)，在本发明实施例中，基站130以及MME140可以统称为网络设备，在一些实施例中，网络设备可以用于指示基站130，在另一些实施例中，网络设备可以用于指示MME140。
其中，在图1-a所示的网络架构图中，远端用户设备110是指可以与基站130距离较远，处于基站130的网络覆盖范围之外，从而无法直接和基站130建立通讯连接，但远端用户设备110与支持中继功能的用户设备120之间可以直接建立连接，例如，远端用户设备110与支持中继功能的用户设备120之间可以低功耗蓝牙(Blue tooth low energy，简称BLE)或无线技术Wifi建立链接，从而远端用户设备110可以通过支持中继功能的用户设备120建立与基站130之间的接入网链接，以进行上行或者下行数据的传输。
其中，在图1-b所示的网络架构中，与图1-a不同的是，远端用户设备110处于网络设备的网络覆盖范围内，也即远端用户设备110可与基站130之间直接建立网络通信连接，但是当远端用户设备110直接接入基站130提供的网络服务时，需要较大的发射功率，而由于远端用户设备110一般为一些体积小、电池容量比较小以及功耗低的可穿戴设备，所以需要该远端用户设备110的操作为低功耗的，而当远端用户设备110与中继设备120进行通信时，所需要的发射功率比较小，所以为了节约远端用户设备110的电量，可以在该第二网络 架构下，使远端用户设备110通过中继设备120建立与基站130之间的接入网链接，以进行上行或者下行数据的传输。
具体地，该远端用户设备110可以为手机、可穿戴设备(Wearable equipment，简称WE)等用户设备(User Equipment，简称UE)，该支持中继功能的用户设备120也可以为手机、可穿戴设备等用户设备，基站130可以为演进型基站(evolved NodeB，简称eNodeB)，用于为远端用户设备或支持中继功能的用户设备120提供网络接入资源，MME可以用于存储支持中继功能的用户设备120的相关信息。
优选地，本发明实施例主要用于远端用户设备110为可穿戴设备，以及支持中继功能的用户设备120为手机的应用场景下。
在本发明实施例中，为了使远端用户设备110通过支持中继功能的用户设备120与基站130建立连接，远端用户设备110首先需要发现可以为其提供Relay支持的用户设备，该过程即为设备到设备间的发现过程。目前第三代合作伙伴计划(3rd Generation Partnership Project，简称3GPP)定义了两种支持设备到设备间发现的发现机制，分别称为Model A和Model B，参见图2-a和图2-b，图2-a是本发明实施例提供的一种设备到设备间发现的机制示意图，图2-b是本发明实施例提供的另一种设备到设备间发现的机制示意图，图2-a和图2-b分别对应于Model A和Model B。
在图2-a所示的发现机制中，支持中继功能的用户设备会按照预定的周期来广播discovery message，此时如果有其它的远端用户设备在监听discovery message，那么其它的远端用户设备就会发现该中继功能的用户设备。在该模型中，发送通知消息discovery message的用户设备称为通知终端announcing UE，而接收discovery message的用户设备称为监听终端monitoring UE。
在图2-b所示的发现机制中，如果一个用户设备想要发现其周围的用户设备，那么该用户设备会主动发送一个请求消息Solicitation message。其它用户设备如果在监听这些消息，那么在收到这样的请求消息后，会发送一个响应消息给发请求消息的用户设备。在该模型中，发送solicitation message的用户设备称为发现终端discoverer UE，而发送response message的用户设备称为初发现终端discoveree UE。
在本发明实施例中，一个支持relay功能的用户设备在何种条件下才能发送discovery message是受基站控制的。一方面基站会控制支持relay功能的用户设备发送discovery message所使用的资源，另一方面基站会控制支持relay功能的用户设备发送discovery message所需要满足的Uu口的信道条件。具体方法如下：
基站可以选择广播一个或者两个Uu口信道条件的门限值。一个为发送discovery message所需要满足的Uu口的最低信道质量；另一个送discovery message所需要满足的Uu口的最高信道质量；
对于处于RRC_IDLE状态的支持relay功能的用户设备，如果基站广播了一个用于发送discovery message的资源池，当该支持relay功能的用户设备的Uu口的信道质量满足了上述的信道质量条件时，该支持relay功能的用户设备即可以开始发送discovery message，当该支持relay功能的用户设备的Uu口的信道质量不再满足上述信道质量条件时，该支持relay功能的用户设备则停止发送discovery message；
对于处于RRC_CONNECTED状态的UE，当该支持relay功能的用户设备的Uu口的信道质量满足了上述的信道质量条件时，支持relay功能的用户设备首先需要发送一个请求开始discovery过程的指示给基站。在收到基站分配的用于发送discovery message的资源后，该支持relay功能的用户设备即可以开始发送discovery message。
但是由于远端用户设备和支持中继功能的用户设备只能在一个预先配置的载频上面发送和接收discovery message，但如果此时不对支持relay功能的用户设备根据远端用户设备的需求进行选择的话，有可能发送该discovery message的支持relay功能的用户设备的服务频率不满足远端用户设备的需求，或者该支持relay功能的用户设备的发现时间与发现机制可能不满足远端用户设备的需求，本发明实施例所提供的技术方案即可根据远端用户设备的需求来控制支持relay功能的用户设备何时发送或停止discovery过程，以解决无必要的功率消耗。
参见图3，图3示出了本发明实施例提供的一种控制设备到设备间发现的 方法的实施例流程示意图。如图3所示，该方法可以包括以下步骤：
S301、网络设备获取N个支持中继功能的用户设备的N个第一中继功能参数集，所述N个第一中继功能参数集与所述N个支持中继功能的用户设备对应，所述N为正整数。
在本发明实施例中，在执行设备到设备间发现过程的网络空间中存在N个支持中继功能的用户设备，该N个支持中继功能的用户设备中可能存在至少一个支持中继功能的用户设备在执行discovery过程中不能满足远端用户设备的需求。
可选地，该网络设备包括基站或MME。
可选地，该支持中继功能的用户设备可以处于连接态ECM_CONNECTED或空闲态ECM_IDLE。
其中，第一中继功能参数集是指支持中继功能的用户设备所支持的、与支持中继功能的用户设备的中继功能相关的上下文信息。
可选地，在本发明的一个实施例中，该第一中继功能参数集包括以下中继功能参数中的至少一种：
所述支持中继功能的用户设备支持的远端用户设备关联标识，所述支持中继功能的用户设备支持的设备到设备间连接的接入方式以及所述支持中继功能的用户设备支持的所述发现过程的发现机制。
具体地，在本发明的一个示例中，所述支持中继功能的用户设备支持的远端用户设备关联标识例如可以为该支持中继功能的用户设备支持的远端用户设备的身份标识信息(identification，简称ID)，或者其它形式的用于关联支持中继功能的用户设备及其所能为之提供中继服务的远端用户设备的标识。
具体地，该设备到设备连接的接入方式包括但不限于无线局域网(Wireless Local Area Networks，简称WLAN)通信，蓝牙通信，以及长期演进(Long Term Evolution，简称LTE)系统中基于侧行链路Sidelink的通信。
具体地，该发现机制包括：Model A or Model B。
需要说明，在本发明实施例中，该第一中继功能参数集中包括所有支持中继功能的用户设备支持的中继功能参数，可以为一个或者多个，例如，若支持中继功能的用户设备支持的远端用户设备关联标识为远端用户设备ID，则该 第一中继功能参数集将包括所有支持中继功能的用户设备支持的远端用户ID，例如可以为ID1，ID2等；同理，所述支持中继功能的用户设备支持的设备到设备间连接的接入方式包括支持中继功能的用户设备支持的A接入方式、B接入方式等；所述支持中继功能的用户设备支持的所述发现过程的发现机制可以包括Model A和Model B。
S302、所述网络设备获取远端用户设备的第二中继功能参数集。
其中，第二中继功能参数集是指远端用户设备支持的与中继功能相关的参数。
可选地，在本发明的一个实施例中，所述第二中继功能参数集包括以下中继功能参数中的至少一种：
所述支持中继功能的用户设备支持的远端用户设备关联标识，所述远端用户设备当前选择的设备到设备连接的接入方式以及所述远端用户设备选择的所述发现过程的发现机制。
优选地，该支持中继功能的用户设备支持的远端用户设备关联标识可以为该远端用户设备的ID。
具体地，该设备到设备连接的接入方式包括但不限于无线局域网(Wireless Local Area Networks，简称WLAN)通信，蓝牙通信，在长期演进(Long Term Evolution，简称LTE)系统中还可以包括LTE Sidelink通信。
具体地，当远端用户设备选择的接入方式为LTE sidelink，该发现机制包括：Model A or Model B。
需要说明，在本发明实施例中，与第一中继功能参数集不同的是，该第二中继功能参数集所包括的中继功能参数为当前远端用户设备所选择的，例如，远端用户设备当前选择的设备到设备连接的接入方式只可能为远端用户设备支持的多种接入方式中的某一种，例如为A接入方式；同理，若远端用户设备当前选择的发现机制为Model A，则所述远端用户设备选择的所述发现过程的发现机制为Model A。
可选地，在本发明的一些实施例中，所述方法还包括：
所述网络设备获取所述远端用户设备的第三中继功能参数集；
所述网络设备将所述第三中继功能参数集并入所述第二中继功能参数集 中以更新所述第二中继功能参数集得到新的第二中继功能参数集；
所述至少一个支持中继功能的用户设备的第一中继功能参数集包括所述新的第二中继功能参数集。
其中，该第三中继功能参数集包括以下功能参数中的至少一种：
所述远端用户设备当前选择的公共陆地网络PLMN标识，所述远端用户设备当前的服务频率。
举例说明，在本发明的一个示例中，若网络设备最初获取到的第一中继功能参数为ID1，接入方式A以及Model A，然后网络设备再获取到第三中继功能参数集为PLMN1以及服务频率1，然后得到新的第一中继功能参数集为ID1，接入方式A，ModelA，PLMN1以及服务频率1，后续在使用第一中继功能参数集时即使用新的第一中继功能参数集。
S303、所述网络设备为所述远端用户设备确定所述N个支持中继功能的用户设备中的至少一个支持中继功能的用户设备，所述至少一个支持中继功能的用户设备的第一中继功能参数集与所述第二中继功能参数集满足预设匹配关系。
其中，网络设备为远端用户设备确定的至少一个支持中继功能的用户设备是指能够满足远端用户设备的发现功能需求的用户设备。
其中，预设匹配关系是指预设的用于确定至少一个支持中继功能的用户设备的，该预设匹配关系用于指示第一中继功能参数集与第二中继功能参数集之间的匹配关系。
需要说明，支持中继功能的用户设备支持的第一中继功能参数集与远端用户设备选择第二中继功能参数集满足预设匹配关系用于指示远端用户设备所选择的第二中继功能参数为支持中继功能的用户设备所支持的，也即第一中继功能参数集中所存在的。
举例说明，在本发明的一个示例中，若第一中继功能参数集中包括接入方式{WLAN，蓝牙通信}，而第二中继功能参数集的接入方式为WLAN，此时可以理解为该接入方式参数满足预设匹配关系，而若第二中继功能参数集的接入方式为LTE，此时可以理解为该接入方式参数不满足预设匹配关系。同理，对于其它中继功能参数的匹配也类似。
更进一步，可选地，若不存在远端用户设备所选择的第二中继功能参数集全部属于支持中继功能的用户设备所支持的第一中继功能参数集中的情况，可以选择第一中继功能参数集与第二中继功能参数集满足最大匹配情况下的某一个或多个支持中继功能的用户设备。
S304、所述网络设备向所述至少一个支持中继功能的用户设备发送第一通知消息，所述第一通知消息用于触发所述至少一个支持中继功能的用户设备发起设备到设备间的发现过程。
可选地，在本发明的一些实施例中，所述第一通知消息包括以下参数中的至少一种：
用于发起所述发现过程的指示信息，所述设备到设备间连接的接入方式，所述发现过程中发送和/或接收发现消息的载波频率，所述发现过程的发现机制以及所述发现过程中发送和/或接收发现消息所使用的发送和/或接收资源池。
具体地，该设备到设备连接的接入方式包括但不限于无线局域网(Wireless Local Area Networks，简称WLAN)通信，蓝牙通信，在长期演进(Long Term Evolution，简称LTE)系统中还可以包括LTE Sidelink通信。
具体地，当接入方式为LTE sidelink，该发现机制包括：Model A or Model B。
具体地，支持中继功能的用户设备在接收到该第一通知消息后，根据该第一通知消息中提供的信息，开始discovery过程。
可以理解，通过在第一通知消息中携带发现指示以及发现过程中所使用的一些参数，从而使得支持中继功能的用户设备可以根据该参数去执行发现过程。
具体地，在本发明的一个实施例中，若所述网络设备为所述MME，所述网络设备向所述至少一个支持中继功能的用户设备发送第一通知消息，包括：
所述MME向所述基站发送第三通知消息，所述第三通知消息用于指示所述基站向所述至少一个支持中继功能的用户设备发送所述第一通知消息。
可选地，在本发明的一些实施例中，所述第三通知消息包括以下参数中的至少一种：
所述至少一个支持中继功能的用户设备的用户设备标识，用于发起所述发现过程的指示信息，所述设备到设备间连接的接入方式，所述发现过程中发送和/或接收发现消息的载波频率，所述发现过程的发现机制以及所述发现过程中发送和/或接收发现消息所使用的发送和/或接收资源池。
具体地，该用户设备标识可以为支持中继功能的用户设备的国际移动用户识别码(International Mobile Subscriber Identification Number，简称IMSI)或短临时识别码(Short-Temporary Mobile Subxcriber Identity，简称S-TMSI)。
可选地，所述发现过程中发送和/或接收发现消息所使用的发送和/或接收资源池也可以由基站根据用户设备标识进行确定。
更进一步，具体地，基站接收所述第三通知消息后，根据第三通知消息中包含的IMSI或S-TMSI信息确定需要触发哪些支持Relay功能的用户设备来开始discovery过程。
可以理解，当由MME确定出来至少一个支持中继功能的用户设备后，需要通过基站发送第一通知消息通知该至少一个支持中继功能的用户设备，所以可以由MME向基站发送第三通知消息指示基站发送第一通知消息。
可选地，在本发明的一些实施例中，若所述支持中继功能的用户设备处于连接状态，所述第一通知消息为专用控制消息。
具体地，该第一通知消息可以为RRCConnectionReconfiguration消息。
可选地，在本发明的另一些实施例中，若所述支持中继功能的用户设备处于空闲状态或连接状态，所述第一通知消息为寻呼消息。
可选地，在本发明的一些实施例中，若所述第一通知消息为寻呼消息，所述第一通知消息还包括：所述至少一个支持中继功能的用户设备的用户设备标识。
可选地，在本发明的一些实施例中，若所述第一通知消息包括寻呼消息，所述用户设备基于所述第一通知消息发起所述发现过程，包括：
所述用户设备在预设监听时刻接收所述寻呼消息；
若所述第一通知消息包含所述用户设备的用户设备标识，所述用户设备基于所述第一通知消息发起所述发现过程。
其中，该用户设备支持Relay功能，预设监听时刻是指用户设备预先确定 的监听时刻。
举例说明，在本发明的一个示例中，当该第一通知消息为寻呼消息Paging消息时，当支持中继功能的用户设备收到的Paging消息中包含中基站在Paging消息中包含的信息且该信息中包含所述该用户设备的用户设备标识，例如用户ID时，该用户设备发起Relay discovery过程。
可以理解，通过在支持中继功能的用户设备处于不同的状态时，使用不同的通知消息，使得更符合通信需求，并且在支持通过专用控制消息来通知处于连接状态的支持中继功能的用户设备，将使得通知效率较高。
更进一步地，通过该发现过程即可使远端用户设备发现并选择提供中继支持的用户设备，从而使远端用户设备可通过该用户设备接入网络。
本发明实施例提供的技术方案中，网络设备获取N个支持中继功能的用户设备的N个第一中继功能参数集，该N个第一中继功能参数集与所述N个支持中继功能的用户设备对应，所述N为正整数；然后网络设备获取远端用户设备的第二中继功能参数集；并为远端用户设备确定所述N个支持中继功能的用户设备中的至少一个支持中继功能的用户设备，所述至少一个支持中继功能的用户设备的第一中继功能参数集与所述第二中继功能参数集满足预设匹配关系；最后网络设备向所述至少一个支持中继功能的用户设备发送第一通知消息，所述第一通知消息用于触发所述至少一个支持中继功能的用户设备发起设备到设备间的发现过程。通过网络设备确定出N个支持中继功能的用户设备中的至少一个支持中继功能的用户设备，并使网络设备只触发所确定的至少一个支持中继功能的用户设备发起设备到设备间的发现过程，从而减少不满足远端用户设备的发现功能需求的支持中继功能的用户设备发起该发现过程的不必要的功率消耗。
更进一步地，通过首先确定出N个支持中继功能的用户设备中的部分支持中继功能的用户设备，从而执行发现过程中通知远端用户设备的disvovery期间需求时，可以节约通知过程的资源消耗，并加快远端用户设备与支持中继功能的用户设备之间相互发现的过程。例如，当通知支持中继功能的用户设备需要进行discovery的载频后，支持中继功能的用户设备可以只在该载频上去发送或者接收discovery message，而不需要去尝试多个载频。
可选地，在本发明的一些实施例中，若所述网络设备包括所述基站，所述网络设备获取N个支持中继功能的用户设备的N个第一中继功能参数集，包括：
所述基站接收所述MME发送的第二通知消息，所述第二通知消息包括所述N个支持中继功能的用户设备的用户设备标识以及所述N个第一中继功能参数集。
具体地，该用户设备标识可以为用户ID，也可以为其它用于表示支持中继功能的用户设备的用户信息的标识。
可选地，该支持中继功能的用户设备包括ECM_IDLE状态的用户设备，也包括ECM_CONNECTED状态的用户设备。
优选地，该支持中继功能的用户设备为ECM_CONNECTED状态。具体地，当支持中继功能的用户设备的状态从ECM_IDLE状态转到ECM_CONNECTED状态时，MME通过一个S1接口上的第二消息通知基站该用户设备的与Relay功能相关的上下文信息，也即第一中继功能参数集。
更进一步，具体地，该第一通知消息可以为Initial UE Context Request消息，也可以为其它新定义的消息。
可选地，在本发明的另一些实施例中，若所述网络设备包括所述基站，所述网络设备获取N个支持中继功能的用户设备的N个第一中继功能参数集，包括：
所述基站向所述MME发送第一请求消息，所述第一请求消息包括所述第二中继功能参数集；
所述接收所述MME响应所述第一请求消息而发送的第一请求消息反馈消息，所述第一请求反馈消息包括所述N个支持中继功能的用户设备的用户标识以及所述N个第一中继功能参数集。
其中，该第一请求消息用于请求MME提供能够为远端用户设备提供relay支持的用户设备的ID信息。
可选地，该支持中继功能的用户设备包括ECM_IDLE状态的用户设备，也包括ECM_CONNECTED状态的用户设备。
优选地，该支持中继功能的用户设备为ECM_IDLE状态，该第一请求消 息用于请求MME提供处在ECM_IDLE状态的但是能够为所述远端用户设备提供relay支持的用户设备的相关信息。具体地，MME接收上述基站发送的S1接口上的第一请求消息，然后MME根据上述信息找出所有满足条件的但还处于ECM_IDLE状态的支持中继功能的用户设备；然后MME再返回一个S1接口上的第一请求消息反馈消息给基站。
具体地，该第一请求消息包括以下信息中的至少一种：支持中继功能的用户设备支持的远端用户设备关联标识，远端用户设备支持的设备到设备连接的接入方式，远端用户设备支持的发现过程的发现机制。
具体地，该第一请求消息可以为新定义的消息，该第一请求反馈消息可以为新定义的消息。
可以理解，通过MME主动给远端用户设备提供支持中继功能的用户设备的标识及相应参数，或者基站请求MME发送支持中继功能的用户设备的标识及相应参数，从而使得基站获取第一中继功能参数的方式灵活。
可选地，在本发明的一些实施例中，所述网络设备获取远端用户设备的第二中继功能参数集，包括：
所述网络设备从所述远端用户设备获取所述远端用户设备的所述第二中继功能参数集。
可以理解，可以直接从远端用户设备获取与远端用户设备相关的第二中继功能参数集，使得获取效率高。
可选地，在本发明的一些实施例中，若所述网络设备为所述基站，所述网络设备获取远端用户设备的第二中继功能参数集，包括：
所述基站接收所述远端用户设备发送的第二请求消息，所述第二请求消息包括所述第二中继功能参数集。
具体地，当远端用户设备触发discovery过程后，远端用户设备向基站发送第二请求消息。
具体地，该第二请求消息可以为目前协议中的SidelinkUEinformation，也可以为新定义的一个控制消息。
可选地，在本发明的一些实施例中，若所述网络设备为所述MME，所述网络设备获取远端用户设备的第二中继功能参数集，包括：
所述MME接收所述远端用户设备发送的第三请求消息，所述第三请求消息包括所述第二中继功能参数集。
具体地，当远端用户设备触发discovery过程后，远端用户设备向MME发送第三请求消息。
具体地，该第三请求消息为新定义的一个NAS消息。
可以理解，可以直接从远端用户设备获取与远端用户设备相关的第二中继功能参数集，使得获取效率高。
可选地，在本发明的一些实施例中，当基站确定远端用户设备已经成功与某一个支持中继功能的用户设备建立连接后，所述方法还包括：
在所述基站确定所述至少一个支持中继功能的用户设备中的一个支持中继功能的用户设备与所述远端用户设备连接后，所述基站向所述至少一个支持中继功能的用户设备中除去所述一个支持中继功能的用户设备之外的其它支持中继功能的用户设备发送第四通知消息，所述第四通知消息用于通知所述其它支持中继功能的用户设备停止所述发现过程。
可选地，该第四通知消息包括以下参数中的至少一种：
所述支持中继功能的用户设备支持的远端用户设备关联标识以及用于停止所述发现过程的指示信息。
更进一步地，支持中继功能的用户设备在接收到该第四通知消息，若该第四通知消息中包括该支持中继功能的用户设备的用户设备标识，则该用户设备则根据第四通知消息的指示停止该发现过程。
可选地，在本发明的一些实施例中，若所述支持中继功能的用户设备处于连接状态，所述第四通知消息包括专用控制消息。
更进一步地，此时当支持中继功能的用户设备在接收到该第四通知消息后，则停止发现过程。
可选地，在本发明的另一些实施例中，若所述中继设备处于空闲状态或连接状态，所述第四通知消息包括寻呼消息。
更进一步地，此时支持中继功能的用户设备在监听到该第四通知消息并且该第四通知消息包括该用户设备的用户设备标识时，则停止该发现过程。
可以理解，通过向支持中继功能的用户设备发送第四通知消息来停止发现 过程，从而使得在远端用户设备已经成功与某一个支持中继功能的用户设备建立连接后，让其它支持中继功能的用户设备及时停止发现过程，减少不必要的功率消耗。
可选地，在本发明的一些实施例中，所述第一通知消息包括时间标识，所述时间标识用于指示所述至少一个支持中继功能的用户设备在接收到所述第一通知消息并经过所述时间标识对应的预设时间段后停止所述发现过程。
具体地，基站在发送的触发支持中继功能的用户设备开始discovery过程的第一通知消息中，包含一个计时器的时间。
优选地，该计时器的时间为支持中继功能的用户设备进行discovery的最大时间长度。
更进一步，具体地，支持Relay功能的用户设备在收到第一通知消息后，根据该第一通知消息中提供的信息，开始discovery过程，并同时启动一个计时器。当所述计时器超时后，支持Relay功能的用户设备自动停止discovery过程。
可以理解，通过在第一通知消息中包括时间标识用于控制支持中继功能的用户设备停止发现过程，使得对发现过程的控制更为灵活，让其它支持中继功能的用户设备及时停止发现过程，减少不必要的功率消耗。
参见图4，图4是本发明实施例提供的另一种控制设备到设备间发现的方法的流程示意图，该实施例为基于图3所示的实施例的优选的具体实施例，在该实施例中，支持relay功能的UE用于表示支持中继功能的用户设备，Remote UE用于表示远端用户设备。其中，图4所示的方法中，与图3所示方法相同或类似的内容可以参考图3中的详细描述，此处不再赘述。如图4所示，该方法可以包括如下步骤：
S401、MME保存支持relay功能的UE的第一中继功能参数。
S402、MME向基站发送第二通知消息，基站接收MME发送的第二通知消息。
其中，该第二通知消息包括N个支持中继功能的用户设备的用户设备标识以及所述N个第一中继功能参数集，其中，该N个支持中继功能的用户设 备处于ECM_CONNECTED状态。
S403、Remote UE向基站发送第二请求消息，基站接收Remote UE发送的第二请求消息。
其中，该第二请求消息包括Remote UE的第二中继功能参数集。
S404、基站获取支持relay功能的UE的第三中继功能参数集以更新第一中继功能参数集。
S405、基站为所述远端用户设备确定所述N个支持relay功能的UE中的至少一个支持relay功能的UE。
其中，该至少一个支持relay功能的UE的第一中继功能参数集与所述第二中继功能参数集满足预设匹配关系。
具体地，在本发明实施例中，该至少一个支持relay功能的UE包括支持relay功能的UE1和支持relay功能的UE2。
S406、基站向至少一个支持relay功能的UE发送第一通知消息。至少一个支持relay功能的UE接收该第一通知消息。
其中，该第一通知消息用于触发所述至少一个支持中继功能的用户设备发起设备到设备间的发现过程。
S407、至少一个支持relay功能的UE发起发现过程。
S408、在基站确定Remote UE发现并选择一个支持relay功能的UE后，基站向其它支持relay功能的UE发送第四通知消息。
具体地，在本发明实施例中，若基站确定Remote UE发现并选择支持relay功能的UE1为后，则基站向支持relay功能的UE2发送第四通知消息。
优选地，该通知消息为专用控制消息。
具体地，该通知消息为RRCConnectionReconfiguration消息。
S409、其它支持relay功能的UE停止发现过程。
具体地，支持relay功能的UE2在接收到该RRCConnectionReconfiguration消息后，停止发现过程。
本实施例中，通过确定至少一个处于ECM_CONNECTED状态的支持relay功能的UE，从而减少不满足远端用户设备的发现功能需求的支持中继功能的用户设备发起该发现过程的不必要的功率消耗。
参见图5，图5是本发明实施例提供的又一种控制设备到设备间发现的方法的流程示意图，该实施例为基于图3所示的实施例的优选的具体实施例，在该实施例中，支持relay功能的UE用于表示支持中继功能的用户设备，Remote UE用于表示远端用户设备。其中，图5所示的方法中，与图3所示方法相同或类似的内容可以参考图3中的详细描述，此处不再赘述。如图5所示，该方法可以包括如下步骤：
S501、MME保存支持relay功能的UE的第一中继功能参数。
S502、MME向基站发送第二通知消息，基站接收MME发送的第二通知消息。
其中，该第二通知消息包括N1个支持中继功能的用户设备的用户设备标识以及所述N1个第一中继功能参数集，其中，该N1个支持中继功能的用户设备处于ECM_CONNECTED状态。
S503、Remote UE向基站发送第二请求消息，基站接收Remote UE发送的第二请求消息。
其中，该第二请求消息包括Remote UE的第二中继功能参数集。
S504、基站获取支持relay功能的UE的第三中继功能参数集以更新第一中继功能参数集。
S505、基站为Remote UE确定所述N1个处于ECM_CONNECTED状态的支持relay功能的UE中的至少一个处于ECM_CONNECTED状态的支持relay功能的UE。
其中，该至少一个支持relay功能的UE的第一中继功能参数集与所述第二中继功能参数集满足预设匹配关系。
S506、基站向MME发送第一请求消息，MME接收基站发送的第一请求消息。
其中，该第一请求消息用于向MME请求处于ECM_IDLE状态但是能够为所述remote UE提供relay支持的UE的ID信息。
具体地，该第一请求消息包括第二中继功能参数集。
具体地，MME根据第一请求消息找到所有满足条件的但还处于 ECM_IDLE状态的支持relay功能的UE。
S507、MME向基站返回第一请求反馈信息，基站接收MME发送的第一请求反馈信息。
其中，该第一请求反馈信息包括所述N2个处于ECM_IDLE状态的支持relay功能的UE的用户标识以及所述N2个第一中继功能参数集。
具体地，该第一请求反馈信息为S1接口上的响应消息，并且该第一请求反馈信息为新定义的信息。
S508、基站向支持relay功能的UE发送第一通知消息。
其中，该支持relay功能的UE包括步骤S505中确定的N1个处于ECM_CONNECTED状态的支持relay功能的UE中的至少一个处于ECM_CONNECTED状态的支持relay功能的UE，以及步骤S507中确定的N2个处于ECM_IDLE的支持relay功能的UE。
具体地，在本发明实施例中，该支持relay功能的UE包括支持relay功能的UE1和支持relay功能的UE2。
其中，该第一通知消息用于触发所述支持中继功能的用户设备发起设备到设备间的发现过程。
具体地，该第一通知消息为寻呼消息。
S509、至少一个支持relay功能的UE发起发现过程。
可选地，当支持relay功能的UE处于ECM_CONNECTED状态时，则当支持relay功能的UE收到的一个Paging消息中包含S508中基站在Paging消息中包含的信息且该信息中包含支持relay功能的UE的ID时，该支持relay功能的UE发起Relay discovery过程。
可选地，当支持relay功能的UE处于ECM_IDLE状态时，且当所述Paging消息中包含S508中基站在Paging消息中包含的信息时，该UE不需要发起RRC连接建立过程，而只需要发起Relay discovery过程。
S510、在基站确定Remote UE发现并选择至少一个支持relay功能的UE后，基站向其它支持relay功能的UE发送第四通知消息。其它支持relay功能的UE接收该第四通知消息。
具体地，在本发明实施例中，若基站确定Remote UE发现并选择支持relay 功能的UE1后，则基站向支持relay功能的UE2发送第四通知消息。
优选地，该通知消息为寻呼消息。
S511、其它支持relay功能的UE停止发现过程。
具体地，支持relay功能的UE2在接收到该Paging消息后，停止发现过程。
本实施例中，在图4所对应的实施例基础上再进一步确定处于ECM_IDLE状态支持relay功能的UE，从而能够在支持relay功能的UE处于ECM_IDLE状态时，也能够将该处于ECM_IDLE状态的支持relay功能的UE确定出来，保证能够为终端提供最适合的支持relay功能的UE。
参见图6，图6是本发明实施例提供的又一种控制设备到设备间发现的方法的流程示意图，该实施例为基于图3所示的实施例的优选的具体实施例，在该实施例中，支持relay功能的UE用于表示支持中继功能的用户设备，Remote UE用于表示远端用户设备。其中，图6所示的方法中，与图3所示方法相同或类似的内容可以参考图3中的详细描述，此处不再赘述。如图6所示，该方法可以包括如下步骤：
S601、MME保存支持relay功能的UE的第一中继功能参数。
S602、Remote UE向MME发送第三请求消息，MME接收Remote UE发送的第三请求消息。
其中，该第三请求消息包括Remote UE的第二中继功能参数集。
S603、MME获取支持relay功能的UE的第三中继功能参数集以更新第一中继功能参数集。
S604、MME为Remote UE确定N个支持relay功能的UE中的至少一个支持relay功能的UE。
S605、MME向基站发送第三通知消息。基站接收MME发送的第三通知消息。
其中，该第三通知消息用于指示基站向所述至少一个支持中继功能的用户设备发送所述第一通知消息。
S606、基站向S606中确定的至少一个支持relay功能的UE发送第一通知消息。至少一个支持relay功能的UE接收该通知消息。
具体地，该第一通知消息为寻呼消息。
S607、至少一个支持relay功能的UE发起发现过程。
本实施例中，通过由MME来确定为Remote UE提供中继功能支持的支持relay功能的UE，从而可以节约基站的功耗。
参见图7，图7示出了本发明实施例提供的一种控制设备到设备间发现的方法的实施例流程示意图。其中，图7所示的方法中，与图3所示方法相同或类似的内容可以参考图3中的详细描述，此处不再赘述。如图7所示，该方法可以包括如下步骤：
S701、网络设备获取远端用户设备的第二中继功能参数集。
具体地，当远端用户设备触发Relay UE discovery过程后，网络设备获取远端用户设备的第二中继功能参数集。
优选地，该网络设备为基站。
其中，该第二中继功能参数集包括以下中继功能参数中的至少一种：
所述支持中继功能的用户设备支持的远端用户设备关联标识，所述远端用户设备当前选择的设备到设备连接的接入方式以及所述远端用户设备选择的所述发现过程的发现机制。
可选地，所述方法还包括：
所述网络设备获取所述远端用户设备的第三中继功能参数集；
所述网络设备将所述第三中继功能参数集并入所述第二中继功能参数集中以更新所述第二中继功能参数集得到新的第二中继功能参数集；
所述至少一个支持中继功能的用户设备的第一中继功能参数集包括所述新的第二中继功能参数集。
其中，所述第三中继功能参数集包括以下功能参数中的至少一种：
所述远端用户设备当前选择的公共陆地网络PLMN标识，所述远端用户设备当前的服务频率。
S702、网络设备向用户设备发送通知消息。用户设备接收网络设备发送的通知消息。
其中，若所述用户设备支持中继功能，所述通知消息用于触发所述用户设 备发起设备到设备间的发现过程，所述通知消息包括所述用户设备发起设备到设备间的发现过程的通信参数集，所述通信参数集基于所述第二中继功能参数集确定。
具体地，该通知消息为寻呼消息。
可选地，所述通信参数集包括以下参数中的至少一种：
用于发起所述发现过程的指示信息，所述设备到设备间连接的接入方式，所述发现过程中的公共陆地网络PLMN标识，所述发现过程中发送和/或接收发现消息的载波频率，所述发现过程的发现机制以及所述发现过程中发送和/或接收发现消息所使用的发送和/或接收资源池。
可选地，该通知消息包括寻呼消息。
S703、在所述用户设备的中继功能参数集与所述通信参数集满足预设匹配关系的情况下，所述用户设备发起设备到设备间的发现过程。
可选地，所述中继功能参数集包括以下参数中的至少一种：
所述支持中继功能的用户设备支持的远端用户设备关联标识，所述支持中继功能的用户设备支持的设备到设备间连接的接入方式，所述支持中继功能的用户设备支持的公共陆地网络PLMN标识，所述支持中继功能的用户设备支持的载波频率，所述支持中继功能的用户设备支持的所述设备到设备间发现过程的发现机制。
具体地，当用户设备在自己的每个PO中监听并检测到该寻呼消息中的通信参数集与该用户设备自身的中继参数集匹配，此时该用户设备发起discovery过程。
更进一步地，用户设备可以根据通信参数集来进行discovery过程。例如，用户设备可以根据所述信息中包含的远端用户设备用于发送discovery message所用的资源配置信息来判断应该在哪些资源位置进行discovery message的接收。
在本发明的一个示例中，如果用户设备处于RRC_IDLE状态，且当所述Paging消息中包含基站在Paging消息中包含的信息而不包含该用户设备的用户设备标识时，该用户设备不需要发起RRC连接建立过程。
本发明实施例提供的技术方案中，网络设备获取远端用户设备的第二中继 功能参数集；然后网络设备向用户设备发送通知消息，该用户设备支持中继功能，该通知消息包括用户设备发起设备到设备间的发现过程的通信参数集，所述通信参数集基于所述第二中继功能参数集确定。然后用户设备接收网络设备发送的第一通知消息，该第一通知消息用于触发至少一个支持中继功能的用户设备发起设备到设备间的发现过程，至少一个支持中继功能的用户设备为所述网络设备从N个支持中继功能的用户设备中所确定，所述用户设备支持中继功能，最后用户设备基于所述第一通知消息发起所述发现过程。通过在支持中继功能的用户设备的中继功能参数集与用户设备发起设备到设备间的发现过程的通信参数集满足预设匹配关系时，该用户设备发起发现过程，从而减少不满足远端用户设备的发现功能需求的支持中继功能的用户设备发起该发现过程的不必要的功率消耗。
更进一步地，通过只由部分支持中继功能的用户设备执行发现过程，从而在通知远端用户设备的disvovery期间需求时，可以节约通知过程的资源消耗，并加快远端用户设备与支持中继功能的用户设备之间相互发现的过程。例如，当通知支持中继功能的用户设备需要进行discovery的载频后，支持中继功能的用户设备可以只在该载频上去发送或者接收discovery message，而不需要去尝试多个载频。
参见图8，图8是本发明实施例提供的另一种控制设备到设备间发现的方法的流程示意图，该实施例为基于图7所示的实施例的优选的具体实施例，在该实施例中，网络设备为基站，支持relay功能的UE用于表示支持中继功能的用户设备，Remote UE用于表示远端用户设备。其中，图8所示的方法中，与图3或图7所示方法相同或类似的内容可以参考图3或图7中的详细描述，此处不再赘述。如图8所示，该方法可以包括如下步骤：
S801、Remote UE向基站发送第二请求消息，基站接收Remote UE发送的第三请求消息。
其中，该第二请求消息包括Remote UE的第二中继功能参数集。
S802、基站获取支持relay功能的UE的第三中继功能参数集以更新第一中继功能参数集。
在本发明实施例中，该支持relay功能的UE包括支持relay功能的UE1和支持relay功能的UE2。
S803、基站向支持relay功能的UE发送通知消息。支持relay功能的UE接收该通知消息。
其中，所述通知消息用于触发所述用户设备发起设备到设备间的发现过程，通知消息包括所述用户设备发起设备到设备间的发现过程的通信参数集，所述通信参数集基于所述第二中继功能参数集确定。
具体地，该具体地，该通知消息为寻呼消息。
具体地，该通知消息包括时间标识，所述时间标识用于指示所述至少一个支持中继功能的用户设备在接收到所述第一通知消息并经过所述时间标识对应的预设时间段后停止所述发现过程。
具体地，该时间标识指示的预设时间段为支持relay功能的UE进行discovery的最大时间长度，从而使得支持relay功能的UE在接收到第一通知消息后，能够在Remote UE和支持relay功能的UE成功建立连接后，其它支持relay功能的UE能自动停止discovery过程。
S804、支持relay功能的UE发起设备到设备间的发现过程。
在本发明实施例中，支持relay功能的UE1的中继功能参数集与通信参数集满足预设匹配关系。支持relay功能的UE1的中继功能参数集与通信参数集不满足预设匹配关系。
S805、支持relay功能的UE2在预设时间段后停止设备到设备间的发现过程。
本发明实施例中，通过在支持中继功能的用户设备的中继功能参数集与用户设备发起设备到设备间的发现过程的通信参数集满足预设匹配关系时，该用户设备发起发现过程，从而减少不满足远端用户设备的发现功能需求的支持中继功能的用户设备发起该发现过程的不必要的功率消耗。
更进一步地，通过在第一通知消息中包括时间标识用于控制支持中继功能的用户设备停止发现过程，使得对发现过程的控制更为灵活，让其它支持中继功能的用户设备及时停止发现过程，减少不必要的功率消耗。
参见图9，图9为本发明实施例提供的一种网络设备的结构示意图，如图9所示，该网络设备900包括：
获取模块910，用于获取N个支持中继功能的用户设备的N个第一中继功能参数集，所述N个第一中继功能参数集与所述N个支持中继功能的用户设备对应，所述N为正整数；
所述获取模块910还用于获取远端用户设备的第二中继功能参数集；
确定模块920，用于用于为所述远端用户设备确定所述N个支持中继功能的用户设备中的至少一个支持中继功能的用户设备，所述至少一个支持中继功能的用户设备的第一中继功能参数集与所述第二中继功能参数集满足预设匹配关系；
发送模块930，用于所述网络设备向所述至少一个支持中继功能的用户设备发送第一通知消息，所述第一通知消息用于触发所述至少一个支持中继功能的用户设备发起设备到设备间的发现过程。
可选地，所述网络设备包括基站或移动管理节点实体(MME)。
可选地，若所述网络设备包括所述基站，所述获取模块910获取N个支持中继功能的用户设备的N个第一中继功能参数集具体用于：
接收所述MME发送的第二通知消息，所述第二通知消息包括所述N个支持中继功能的用户设备的用户设备标识以及所述N个第一中继功能参数集。
可选地，若所述网络设备包括所述基站，
所述发送模块930还用于发送所述基站向所述MME发送第一请求消息，所述第一请求消息包括所述第二中继功能参数集；
所述网络设备900还包括：
接收模块940，用于接收所述MME响应所述第一请求消息而发送的第一请求消息反馈消息，所述第一请求反馈消息包括所述N个支持中继功能的用户设备的用户标识以及所述N个第一中继功能参数集。
可选地，所述获取单元910获取远端用户设备的第二中继功能参数集，包括：
所述网络设备从所述远端用户设备获取所述远端用户设备的所述第二中继功能参数集。
可选地，若所述网络设备为所述基站，所述获取单元910获取远端用户设备的第二中继功能参数集，包括：
通过所述接收单元940接收所述远端用户设备发送的第二请求消息，所述第二请求消息包括所述第二中继功能参数集。
可选地，若所述网络设备为所述MME，所述获取单元910获取远端用户设备的第二中继功能参数集，包括：
通过所述接收单元940接收所述远端用户设备发送的第三请求消息，所述第三请求消息包括所述第二中继功能参数集。
可选地，所述第一中继功能参数集包括以下中继功能参数中的至少一种：
所述支持中继功能的用户设备支持的远端用户设备关联标识，所述支持中继功能的用户设备支持的设备到设备间连接的接入方式以及所述支持中继功能的用户设备支持的所述发现过程的发现机制。
可选地，所述第二中继功能参数集包括以下中继功能参数中的至少一种：
所述支持中继功能的用户设备支持的远端用户设备关联标识，所述远端用户设备当前选择的设备到设备连接的接入方式以及所述远端用户设备选择的所述发现过程的发现机制。
可选地，所述获取单元910还用于获取所述远端用户设备的第三中继功能参数集；
所述网络设备900还包括更新单元950，用于将所述第三中继功能参数集并入所述第二中继功能参数集中以更新所述第二中继功能参数集得到新的第二中继功能参数集；
所述至少一个支持中继功能的用户设备的第一中继功能参数集包括所述新的第二中继功能参数集。
可选地，所述第三中继功能参数集包括以下功能参数中的至少一种：
所述远端用户设备当前选择的公共陆地网络PLMN标识，所述远端用户设备当前的服务频率。
可选地，所述第一通知消息包括以下参数中的至少一种：
用于发起所述发现过程的指示信息，所述设备到设备间连接的接入方式，所述发现过程中发送和/或接收发现消息的载波频率，所述发现过程的发现机 制以及所述发现过程中发送和/或接收发现消息所使用的发送和/或接收资源池。
可选地，若所述网络设备为所述MME，所述发送单元930向所述至少一个支持中继功能的用户设备发送第一通知消息，包括：
向所述基站发送第三通知消息，所述第三通知消息用于指示所述基站向所述至少一个支持中继功能的用户设备发送所述第一通知消息。
可选地，所述第三通知消息包括以下参数中的至少一种：
所述至少一个支持中继功能的用户设备的用户设备标识，用于发起所述发现过程的指示信息，所述设备到设备间连接的接入方式，所述发现过程中发送和/或接收发现消息的载波频率，所述发现过程的发现机制以及所述发现过程中发送和/或接收发现消息所使用的发送和/或接收资源池。
可选地，所述发送单元930还用于：
在所述基站确定所述至少一个支持中继功能的用户设备中的一个支持中继功能的用户设备与所述远端用户设备连接后，向所述至少一个支持中继功能的用户设备中除去所述一个支持中继功能的用户设备之外的其它支持中继功能的用户设备发送第四通知消息，所述第四通知消息用于通知所述其它支持中继功能的用户设备停止所述发现过程。
可选地，所述第四通知消息包括以下参数中的至少一种：
所述支持中继功能的用户设备支持的远端用户设备关联标识以及用于停止所述发现过程的指示信息。
可选地，若所述支持中继功能的用户设备处于连接状态，所述第一通知消息为专用控制消息和/或所述第四通知消息包括专用控制消息。
可选地，若所述支持中继功能的用户设备处于空闲状态或连接状态，所述第一通知消息为寻呼消息和/或所述第四通知消息包括寻呼消息。
可选地，若所述第一通知消息为寻呼消息，所述第一通知消息还包括：所述至少一个支持中继功能的用户设备的用户设备标识。
可选地，所述第一通知消息包括时间标识，所述时间标识用于指示所述至少一个支持中继功能的用户设备在接收到所述第一通知消息并经过所述时间标识对应的预设时间段后停止所述发现过程。
本发明实施例中，通过网络设备900确定出N个支持中继功能的用户设备中的至少一个支持中继功能的用户设备，并使网络设备900只触发所确定的至少一个支持中继功能的用户设备发起设备到设备间的发现过程，从而减少不满足远端用户设备的发现功能需求的支持中继功能的用户设备发起该发现过程的不必要的功率消耗。
更进一步地，通过首先确定出N个支持中继功能的用户设备中的部分支持中继功能的用户设备，从而执行发现过程中通知远端用户设备的disvovery期间需求时，可以节约通知过程的资源消耗，并加快远端用户设备与支持中继功能的用户设备之间相互发现的过程。例如，当通知支持中继功能的用户设备需要进行discovery的载频后，支持中继功能的用户设备可以只在该载频上去发送或者接收discovery message，而不需要去尝试多个载频。
在本实施例中，网络设备900是以单元的形式来呈现。这里的“单元”可以指特定应用集成电路(application-specific integrated circuit，ASIC)，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。
可以理解的是，本实施例的网络设备900的各功能单元的功能可根据上述方法实施例中的方法具体实现，其具体实现过程可以参照上述方法实施例的相关描述，此处不再赘述。
参见图10，图10为本发明实施例提供的另一种网络设备的结构示意图，如图10所示，该网络设备1000包括：
发射器/接收器1001和处理器1002。其中，处理器1002也可以为控制器，图10中表示为“控制器/处理器1002”。所述发射器/接收器1001用于支持网络侧设备与上述实施例中的所述终端之间收发信息，以及支持所述终端与其他终端之间进行无线电通信。所述处理器1002执行各种用于与终端通信的功能。在上行链路，来自所述终端的上行链路信号经由天线接收，由接收器1001进行解调(例如将高频信号解调为基带信号)，并进一步由处理器1002进行处理来恢复终端所发送到业务数据和信令信息。在下行链路上，业务数据和信令消息由处理器1002进行处理，并由发射器1001进行调制(例如将基带信号调制为高频信 号)来产生下行链路信号，并经由天线发射给用户设备。需要说明的是，上述解调或调制的功能也可以由处理器1002完成。例如，处理器1002还用于执行上述方法实施例中的相应步骤，和/或本发明实施例所描述的技术方案的其他过程。
进一步的，网络设备1000还可以包括存储器1003，存储器1003用于存储网络设备1000的程序代码和数据。此外，网络设备1000还可以包括通信单元1004。通信单元1004用于支持网络设备与其他网络实体(例如核心网中的网络设备等)进行通信。例如，在LTE系统中，该通信单元1004可以是S1-U接口，用于支持网络设备与服务网关(Serving Gateway，SGW)进行通信；或者，该通信单元1004也可以是S1-MME接口，用于支持网络设备与移动性管理实体(Mobility Management Entity，MME)进行通信。
优选地，在本发明实施例中，该网络设备1000包括基站或者MME。
可以理解的是，图10仅仅示出了网络侧设备1000的简化设计。在实际应用中，网络侧设备1000可以包含任意数量的发射器，接收器，处理器，控制器，存储器，通信单元等，而所有可以实现本发明实施例的网络设备都在本发明实施例的保护范围之内。
本发明实施例中，通过网络设备1000确定出N个支持中继功能的用户设备中的至少一个支持中继功能的用户设备，并使网络设备1000只触发所确定的至少一个支持中继功能的用户设备发起设备到设备间的发现过程，从而减少不满足远端用户设备的发现功能需求的支持中继功能的用户设备发起该发现过程的不必要的功率消耗。
更进一步地，通过首先确定出N个支持中继功能的用户设备中的部分支持中继功能的用户设备，从而执行发现过程中通知远端用户设备的disvovery期间需求时，可以节约通知过程的资源消耗，并加快远端用户设备与支持中继功能的用户设备之间相互发现的过程。例如，当通知支持中继功能的用户设备需要进行discovery的载频后，支持中继功能的用户设备可以只在该载频上去发送或者接收discovery message，而不需要去尝试多个载频。
参见图11，图11为本发明实施例提供的一种用户设备的结构示意图，如 图11所示，该用户设备1100包括：
接收模块1110，用于接收网络设备发送的第一通知消息，所述第一通知消息用于触发至少一个支持中继功能的用户设备发起设备到设备间的发现过程，所述至少一个支持中继功能的用户设备为所述网络设备从N个支持中继功能的用户设备中所确定，所述用户设备支持中继功能；
发起模块1120，用于基于所述第一通知消息发起所述发现过程。
可选地，若所述第一通知消息包括寻呼消息，所述发起模块1120具体用于：
在预设监听时刻接收所述寻呼消息；
若所述第一通知消息包含所述用户设备的用户设备标识，所述用户设备基于所述第一通知消息发起所述发现过程。
本发明实施例中，通过网络设备确定出N个支持中继功能的用户设备1100中的至少一个支持中继功能的用户设备1100，并使网络设备只触发所确定的至少一个支持中继功能的用户设备1100发起设备到设备间的发现过程，从而减少不满足远端用户设备的发现功能需求的支持中继功能的用户设备1100发起该发现过程的不必要的功率消耗。
更进一步地，通过首先确定出N个支持中继功能的用户设备1100中的部分支持中继功能的用户设备1100，从而执行发现过程中通知远端用户设备的disvovery期间需求时，可以节约通知过程的资源消耗，并加快远端用户设备与支持中继功能的用户设备之间相互发现的过程。例如，当通知支持中继功能的用户设备需要进行discovery的载频后，支持中继功能的用户设备可以只在该载频上去发送或者接收discovery message，而不需要去尝试多个载频。
在本实施例中，用户设备1100是以单元的形式来呈现。这里的“单元”可以指特定应用集成电路(application-specific integrated circuit，ASIC)，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。
可以理解的是，本实施例的用户设备1100的各功能单元的功能可根据上述方法实施例中的方法具体实现，其具体实现过程可以参照上述方法实施例的相关描述，此处不再赘述。
参见图12，图12为本发明实施例提供的另一种用户设备的结构示意图，如图12所示，该用户设备1200包括：
发射器1201，接收器1202和处理器1203。其中，处理器1203也可以为控制器，图12中表示为“控制器/处理器1203”。可选的，所述用户设备1200还可以包括调制解调处理器1205，其中，调制解调处理器1205可以包括编码器1206、调制器1207、解码器1208和解调器1205。
在一个示例中，发射器1201调节(例如，模拟转换、滤波、放大和上变频等)该输出采样并生成上行链路信号，该上行链路信号经由天线发射给上述实施例中所述的基站。在下行链路上，天线接收上述实施例中基站发射的下行链路信号。接收器1202调节(例如，滤波、放大、下变频以及数字化等)从天线接收的信号并提供输入采样。在调制解调处理器1205中，编码器1206接收要在上行链路上发送的业务数据和信令消息，并对业务数据和信令消息进行处理(例如，格式化、编码和交织)。调制器1207进一步处理(例如，符号映射和调制)编码后的业务数据和信令消息并提供输出采样。解调器1209处理(例如，解调)该输入采样并提供符号估计。解码器1208处理(例如，解交织和解码)该符号估计并提供发送给用户设备1200的已解码的数据和信令消息。编码器1206、调制器1207、解调器1209和解码器1208可以由合成的调制解调处理器1205来实现。这些单元根据无线接入网采用的无线接入技术(例如，LTE及其他演进系统的接入技术)来进行处理。需要说明的是，当用户设备1200不包括调制解调处理器1205时，调制解调处理器1205的上述功能也可以由处理器1203完成。
处理器1203对用户设备1200的动作进行控制管理，用于执行上述本发明实施例中由用户设备1200进行的处理过程。例如，处理器1203还用于执行上述方法实施例中相应的步骤，和/或本申请所描述的技术方案的其他过程。
进一步的，用户设备1200还可以包括存储器1204，存储器1204用于存储用于用户设备1200的程序代码和数据。
本发明实施例中，通过网络设备确定出N个支持中继功能的用户设备1100中的至少一个支持中继功能的用户设备1200，并使网络设备只触发所确定的至少一个支持中继功能的用户设备1200发起设备到设备间的发现过程，从而 减少不满足远端用户设备的发现功能需求的支持中继功能的用户设备1100发起该发现过程的不必要的功率消耗。
更进一步地，通过首先确定出N个支持中继功能的用户设备1200中的部分支持中继功能的用户设备1200，从而执行发现过程中通知远端用户设备的disvovery期间需求时，可以节约通知过程的资源消耗，并加快远端用户设备与支持中继功能的用户设备之间相互发现的过程。例如，当通知支持中继功能的用户设备需要进行discovery的载频后，支持中继功能的用户设备可以只在该载频上去发送或者接收discovery message，而不需要去尝试多个载频。
参见图13，图13为本发明实施例提供的一种用户设备的结构示意图，如图13所示，该用户设备1300包括：
接收模块1310，用于接收网络设备发送的通知消息，所述用户设备支持中继功能，所述通知消息用于触发所述用户设备发起设备到设备间的发现过程，所述通知消息包括所述用户设备发起设备到设备间的发现过程的通信参数集；
发起模块1320，用于在所述用户设备的中继功能参数集与所述通信参数集满足预设匹配关系的情况下，所述用户设备发起设备到设备间的发现过程。
可选地，所述网络设备包括基站。
可选地，所述通信参数集包括以下参数中的至少一种：
用于发起所述发现过程的指示信息，所述设备到设备间连接的接入方式，所述发现过程中的公共陆地网络PLMN标识，所述发现过程中发送和/或接收发现消息的载波频率，所述发现过程的发现机制以及所述发现过程中发送和/或接收发现消息所使用的发送和/或接收资源池。
可选地，所述中继功能参数集包括以下参数中的至少一种：
所述支持中继功能的用户设备支持的远端用户设备关联标识，所述支持中继功能的用户设备支持的设备到设备间连接的接入方式，所述支持中继功能的用户设备支持的公共陆地网络PLMN标识，所述支持中继功能的用户设备支持的载波频率，所述支持中继功能的用户设备支持的所述设备到设备间发现过程的发现机制。
可选地，所述通知消息包括寻呼消息，在所述用户设备的中继功能参数集与所述通信参数集满足预设匹配关系的情况下，所述用户设备发起设备到设备间的发现过程之前，所述接收模块1310还用于在预设监听时刻接收所述寻呼消息。
本发明实施例通过在支持中继功能的用户设备1300的中继功能参数集与用户设备发起设备到设备间的发现过程的通信参数集满足预设匹配关系时，该用户设备1300发起发现过程，从而减少不满足远端用户设备的发现功能需求的支持中继功能的用户设备1300发起该发现过程的不必要的功率消耗。
更进一步地，通过只由部分支持中继功能的用户设备1300执行发现过程，从而在通知远端用户设备的disvovery期间需求时，可以节约通知过程的资源消耗，并加快远端用户设备与支持中继功能的用户设备1300之间相互发现的过程。例如，当通知支持中继功能的用户设备需要进行discovery的载频后，支持中继功能的用户设备可以只在该载频上去发送或者接收discovery message，而不需要去尝试多个载频。
在本实施例中，用户设备1300是以单元的形式来呈现。这里的“单元”可以指特定应用集成电路(application-specific integrated circuit，ASIC)，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。
可以理解的是，本实施例的用户设备1300的各功能单元的功能可根据上述方法实施例中的方法具体实现，其具体实现过程可以参照上述方法实施例的相关描述，此处不再赘述。
参见图14，图14为本发明实施例提供的另一种用户设备的结构示意图，如图14所示，该用户设备1400包括：
发射器1401，接收器1402和处理器1403。其中，处理器1403也可以为控制器，图14中表示为“控制器/处理器1403”。可选的，所述用户设备1400还可以包括调制解调处理器1405，其中，调制解调处理器1405可以包括编码器1406、调制器1407、解码器1408和解调器1405。
在一个示例中，发射器1401调节(例如，模拟转换、滤波、放大和上变频 等)该输出采样并生成上行链路信号，该上行链路信号经由天线发射给上述实施例中所述的基站。在下行链路上，天线接收上述实施例中基站发射的下行链路信号。接收器1402调节(例如，滤波、放大、下变频以及数字化等)从天线接收的信号并提供输入采样。在调制解调处理器1405中，编码器1406接收要在上行链路上发送的业务数据和信令消息，并对业务数据和信令消息进行处理(例如，格式化、编码和交织)。调制器1407进一步处理(例如，符号映射和调制)编码后的业务数据和信令消息并提供输出采样。解调器1409处理(例如，解调)该输入采样并提供符号估计。解码器1408处理(例如，解交织和解码)该符号估计并提供发送给用户设备1400的已解码的数据和信令消息。编码器1406、调制器1407、解调器1409和解码器1408可以由合成的调制解调处理器1405来实现。这些单元根据无线接入网采用的无线接入技术(例如，LTE及其他演进系统的接入技术)来进行处理。需要说明的是，当用户设备1400不包括调制解调处理器1405时，调制解调处理器1405的上述功能也可以由处理器1403完成。
处理器1403对用户设备1400的动作进行控制管理，用于执行上述本发明实施例中由用户设备1400进行的处理过程。例如，处理器1403还用于执行上述方法实施例中相应的步骤，和/或本申请所描述的技术方案的其他过程。
进一步的，用户设备1400还可以包括存储器1404，存储器1404用于存储用于用户设备1400的程序代码和数据。
本发明实施例中，通过网络设备确定出N个支持中继功能的用户设备1400中的至少一个支持中继功能的用户设备1400，并使网络设备只触发所确定的至少一个支持中继功能的用户设备1400发起设备到设备间的发现过程，从而减少不满足远端用户设备的发现功能需求的支持中继功能的用户设备1100发起该发现过程的不必要的功率消耗。
更进一步地，通过首先确定出N个支持中继功能的用户设备1400中的部分支持中继功能的用户设备1400，从而执行发现过程中通知远端用户设备的disvovery期间需求时，可以节约通知过程的资源消耗，并加快远端用户设备与支持中继功能的用户设备之间相互发现的过程。例如，当通知支持中继功能的用户设备需要进行discovery的载频后，支持中继功能的用户设备可以只在该载频上去发送或者接收discovery message，而不需要去尝试多个载频。
参见图15，图15为本发明实施例提供的一种网络设备的结构示意图，如图15所示，该用网络设备1500包括：
获取模块1510，用于获取远端用户设备的第二中继功能参数集；
发送模块1520，用于向用户设备发送通知消息，所述用户设备支持中继功能，所述通知消息用于触发所述用户设备发起设备到设备间的发现过程，所述通知消息包括所述用户设备发起设备到设备间的发现过程的通信参数集，所述通信参数集基于所述第二中继功能参数集确定。
可选地，所述网络设备1500包括基站。
可选地，所述获取模块1510还用于获取所述远端用户设备的第三中继功能参数集；
所述网络设备1500还包括更新模块1530，用于将所述第三中继功能参数集并入所述第二中继功能参数集中以更新所述第二中继功能参数集得到新的第二中继功能参数集；
所述至少一个支持中继功能的用户设备的第一中继功能参数集包括所述新的第二中继功能参数集。
可选地，所述通信参数集包括以下参数中的至少一种：
用于发起所述发现过程的指示信息，所述设备到设备间连接的接入方式，所述发现过程中的公共陆地网络PLMN标识，所述发现过程中发送和/或接收发现消息的载波频率，所述发现过程的发现机制以及所述发现过程中发送和/或接收发现消息所使用的发送和/或接收资源池。
可选地，所述通知消息包括寻呼消息。
本发明实施例通过在支持中继功能的用户设备的中继功能参数集与用户设备发起设备到设备间的发现过程的通信参数集满足预设匹配关系时，该用户设备发起发现过程，从而减少不满足远端用户设备的发现功能需求的支持中继功能的用户设备发起该发现过程的不必要的功率消耗。
更进一步地，通过只由部分支持中继功能的用户设备执行发现过程，从而在通知远端用户设备的disvovery期间需求时，可以节约通知过程的资源消耗，并加快远端用户设备与支持中继功能的用户设备之间相互发现的过程。例如， 当通知支持中继功能的用户设备需要进行discovery的载频后，支持中继功能的用户设备可以只在该载频上去发送或者接收discovery message，而不需要去尝试多个载频。
在本实施例中，网络设备1500是以单元的形式来呈现。这里的“单元”可以指特定应用集成电路(application-specific integrated circuit，ASIC)，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。
可以理解的是，本实施例的网络设备1500的各功能单元的功能可根据上述方法实施例中的方法具体实现，其具体实现过程可以参照上述方法实施例的相关描述，此处不再赘述。
参见图16，图16为本发明实施例提供的另一种网络设备的结构示意图，如图16所示，该网络设备1600包括：
发射器/接收器1601和处理器1602。其中，处理器1602也可以为控制器，图16中表示为“控制器/处理器1602”。所述发射器/接收器1601用于支持网络侧设备与上述实施例中的所述终端之间收发信息，以及支持所述终端与其他终端之间进行无线电通信。所述处理器1602执行各种用于与终端通信的功能。在上行链路，来自所述终端的上行链路信号经由天线接收，由接收器1601进行解调(例如将高频信号解调为基带信号)，并进一步由处理器1602进行处理来恢复终端所发送到业务数据和信令信息。在下行链路上，业务数据和信令消息由处理器1602进行处理，并由发射器1601进行调制(例如将基带信号调制为高频信号)来产生下行链路信号，并经由天线发射给用户设备。需要说明的是，上述解调或调制的功能也可以由处理器1602完成。例如，处理器1602还用于执行上述方法实施例中的相应步骤，和/或本发明实施例所描述的技术方案的其他过程。
进一步的，网络设备1600还可以包括存储器1603，存储器1603用于存储网络设备1600的程序代码和数据。此外，网络设备1600还可以包括通信单元1604。通信单元1604用于支持网络设备与其他网络实体(例如核心网中的网络设备等)进行通信。例如，在LTE系统中，该通信单元1604可以是S1-U接口，用于 支持网络设备与服务网关(Serving Gateway，SGW)进行通信；或者，该通信单元1604也可以是S1-MME接口，用于支持网络设备与移动性管理实体(Mobility Management Entity，MME)进行通信。
优选地，在本发明实施例中，该网络设备1600包括基站或者MME。
可以理解的是，图16仅仅示出了网络侧设备1600的简化设计。在实际应用中，网络侧设备1600可以包含任意数量的发射器，接收器，处理器，控制器，存储器，通信单元等，而所有可以实现本发明实施例的网络设备都在本发明实施例的保护范围之内。
本发明实施例中，通过网络设备1600确定出N个支持中继功能的用户设备中的至少一个支持中继功能的用户设备，并使网络设备1600只触发所确定的至少一个支持中继功能的用户设备发起设备到设备间的发现过程，从而减少不满足远端用户设备的发现功能需求的支持中继功能的用户设备发起该发现过程的不必要的功率消耗。
更进一步地，通过首先确定出N个支持中继功能的用户设备中的部分支持中继功能的用户设备，从而执行发现过程中通知远端用户设备的disvovery期间需求时，可以节约通知过程的资源消耗，并加快远端用户设备与支持中继功能的用户设备之间相互发现的过程。例如，当通知支持中继功能的用户设备需要进行discovery的载频后，支持中继功能的用户设备可以只在该载频上去发送或者接收discovery message，而不需要去尝试多个载频。
本发明实施例还提供一种计算机存储介质，其中，该计算机存储介质可存储有程序，该程序执行时包括上述方法实施例中记载的控制设备到设备间发现的方法的部分或全部步骤。
需要说明的是，对于前述的各方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本发明并不受所描述的动作顺序的限制，因为依据本发明，某些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本发明所必须的。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置，可通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明的各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以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中，包括若干指令用以使得一台计算机设备(可为个人计算机、服务器或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (44)

  1. 一种控制设备到设备间发现的方法，其特征在于，所述方法包括：
    网络设备获取N个支持中继功能的用户设备的N个第一中继功能参数集，所述N个第一中继功能参数集与所述N个支持中继功能的用户设备对应，所述N为正整数；
    所述网络设备获取远端用户设备的第二中继功能参数集；
    所述网络设备为所述远端用户设备确定所述N个支持中继功能的用户设备中的至少一个支持中继功能的用户设备，所述至少一个支持中继功能的用户设备的第一中继功能参数集与所述第二中继功能参数集满足预设匹配关系；
    所述网络设备向所述至少一个支持中继功能的用户设备发送第一通知消息，所述第一通知消息用于触发所述至少一个支持中继功能的用户设备发起设备到设备间的发现过程。
  2. 根据权利要求1所述的方法，其特征在于，所述网络设备包括基站或移动管理节点实体(MME)。
  3. 根据权利要求1或2所述的方法，其特征在于，若所述网络设备包括所述基站，所述网络设备获取N个支持中继功能的用户设备的N个第一中继功能参数集，包括：
    所述基站接收所述MME发送的第二通知消息，所述第二通知消息包括所述N个支持中继功能的用户设备的用户设备标识以及所述N个第一中继功能参数集。
  4. 根据权利要求1至3任一项所述的方法，其特征在于，若所述网络设备包括所述基站，所述网络设备获取N个支持中继功能的用户设备的N个第一中继功能参数集，包括：
    所述基站向所述MME发送第一请求消息，所述第一请求消息包括所述第二中继功能参数集；
    接收所述MME响应所述第一请求消息而发送的第一请求消息反馈消息，所述第一请求反馈消息包括所述N个支持中继功能的用户设备的用户标识以及所述N个第一中继功能参数集。
  5. 根据权利要求1至4任一项所述的方法，其特征在于，所述网络设备获取远端用户设备的第二中继功能参数集，包括：
    所述网络设备从所述远端用户设备获取所述远端用户设备的所述第二中继功能参数集。
  6. 根据权利要求1至5任一项所述的方法，其特征在于，若所述网络设备为所述基站，所述网络设备获取远端用户设备的第二中继功能参数集，包括：
    所述基站接收所述远端用户设备发送的第二请求消息，所述第二请求消息包括所述第二中继功能参数集。
  7. 根据权利要求1至6任一项所述的方法，其特征在于，若所述网络设备为所述MME，所述网络设备获取远端用户设备的第二中继功能参数集，包括：
    所述MME接收所述远端用户设备发送的第三请求消息，所述第三请求消息包括所述第二中继功能参数集。
  8. 根据权利要求1至7任一项所述的方法，其特征在于，所述第一中继功能参数集包括以下中继功能参数中的至少一种：
    所述支持中继功能的用户设备支持的远端用户设备关联标识，所述支持中继功能的用户设备支持的设备到设备间连接的接入方式以及所述支持中继功能的用户设备支持的所述发现过程的发现机制。
  9. 根据权利要求1至8任一项所述的方法，其特征在于，所述第二中继功能参数集包括以下中继功能参数中的至少一种：
    所述支持中继功能的用户设备支持的远端用户设备关联标识，所述远端用 户设备当前选择的设备到设备连接的接入方式以及所述远端用户设备选择的所述发现过程的发现机制。
  10. 根据权利要求1至9任一项所述的方法，其特征在于，所述方法还包括：
    所述网络设备获取所述远端用户设备的第三中继功能参数集；
    所述网络设备将所述第三中继功能参数集并入所述第二中继功能参数集中以更新所述第二中继功能参数集得到新的第二中继功能参数集；
    所述至少一个支持中继功能的用户设备的第一中继功能参数集包括所述新的第二中继功能参数集。
  11. 根据权利要求10所述的方法，其特征在于，所述第三中继功能参数集包括以下功能参数中的至少一种：
    所述远端用户设备当前选择的公共陆地网络PLMN标识，所述远端用户设备当前的服务频率。
  12. 根据权利要求1至11任一项所述的方法，其特征在于，所述第一通知消息包括以下参数中的至少一种：
    用于发起所述发现过程的指示信息，所述设备到设备间连接的接入方式，所述发现过程中发送和/或接收发现消息的载波频率，所述发现过程的发现机制以及所述发现过程中发送和/或接收发现消息所使用的发送和/或接收资源池。
  13. 根据权利要求1至12任一项所述的方法，其特征在于，若所述网络设备为所述MME，所述网络设备向所述至少一个支持中继功能的用户设备发送第一通知消息，包括：
    所述MME向所述基站发送第三通知消息，所述第三通知消息用于指示所述基站向所述至少一个支持中继功能的用户设备发送所述第一通知消息。
  14. 根据权利要求13所述的方法，其特征在于，所述第三通知消息包括以下参数中的至少一种：
    所述至少一个支持中继功能的用户设备的用户设备标识，用于发起所述发现过程的指示信息，所述设备到设备间连接的接入方式，所述发现过程中发送和/或接收发现消息的载波频率，所述发现过程的发现机制以及所述发现过程中发送和/或接收发现消息所使用的发送和/或接收资源池。
  15. 根据权利要求12至14任一项所述的方法，其特征在于，所述方法还包括：
    在所述基站确定所述至少一个支持中继功能的用户设备中的一个支持中继功能的用户设备与所述远端用户设备连接后，所述基站向所述至少一个支持中继功能的用户设备中除去所述一个支持中继功能的用户设备之外的其它支持中继功能的用户设备发送第四通知消息，所述第四通知消息用于通知所述其它支持中继功能的用户设备停止所述发现过程。
  16. 根据权利要求15所述的方法，其特征在于，所述第四通知消息包括以下参数中的至少一种：
    所述支持中继功能的用户设备支持的远端用户设备关联标识以及用于停止所述发现过程的指示信息。
  17. 根据权利要求13至16任一项所述的方法，其特征在于，若所述支持中继功能的用户设备处于连接状态，所述第一通知消息为专用控制消息和/或所述第四通知消息包括专用控制消息。
  18. 根据权利要求13至16任一项所述的方法，其特征在于，若所述支持中继功能的用户设备处于空闲状态或连接状态，所述第一通知消息为寻呼消息和/或所述第四通知消息包括寻呼消息。
  19. 根据权利要求17或18所述的方法，其特征在于，若所述第一通知消 息为寻呼消息，所述第一通知消息还包括：所述至少一个支持中继功能的用户设备的用户设备标识。
  20. 根据权利要求1至11任一项所述的方法，其特征在于，所述第一通知消息包括时间标识，所述时间标识用于指示所述至少一个支持中继功能的用户设备在接收到所述第一通知消息并经过所述时间标识对应的预设时间段后停止所述发现过程。
  21. 一种控制设备到设备间发现的方法，其特征在于，所述方法包括：
    用户设备接收网络设备发送的第一通知消息，所述第一通知消息用于触发至少一个支持中继功能的用户设备发起设备到设备间的发现过程，所述至少一个支持中继功能的用户设备为所述网络设备从N个支持中继功能的用户设备中所确定，所述用户设备支持中继功能；
    所述用户设备基于所述第一通知消息发起所述发现过程。
  22. 根据权利要求21所述的方法，其特征在于，若所述第一通知消息包括寻呼消息，所述用户设备基于所述第一通知消息发起所述发现过程，包括：
    所述用户设备在预设监听时刻接收所述寻呼消息；
    若所述第一通知消息包含所述用户设备的用户设备标识，所述用户设备基于所述第一通知消息发起所述发现过程。
  23. 一种网络设备，其特征在于，所述网络设备包括：
    存储有可执行程序代码的存储器；
    与所述存储器耦合的处理器；
    所述处理器调用所述存储器中存储的所述可执行程序代码，执行如下步骤：
    获取N个支持中继功能的用户设备的N个第一中继功能参数集，所述N个第一中继功能参数集与所述N个支持中继功能的用户设备对应，所述N为正整数；
    获取远端用户设备的第二中继功能参数集；
    为所述远端用户设备确定所述N个支持中继功能的用户设备中的至少一个支持中继功能的用户设备，所述至少一个支持中继功能的用户设备的第一中继功能参数集与所述第二中继功能参数集满足预设匹配关系；
    向所述至少一个支持中继功能的用户设备发送第一通知消息，所述第一通知消息用于触发所述至少一个支持中继功能的用户设备发起设备到设备间的发现过程。
  24. 根据权利要求23所述的网络设备，其特征在于，所述网络设备包括基站或移动管理节点实体(MME)。
  25. 根据权利要求23或24所述的网络设备，其特征在于，若所述网络设备包括所述基站，所述处理器获取N个支持中继功能的用户设备的N个第一中继功能参数集，包括：
    接收所述MME发送的第二通知消息，所述第二通知消息包括所述N个支持中继功能的用户设备的用户设备标识以及所述N个第一中继功能参数集。
  26. 根据权利要求23至25任一项所述的网络设备，其特征在于，若所述网络设备包括所述基站，所述处理器获取N个支持中继功能的用户设备的N个第一中继功能参数集，包括：
    向所述MME发送第一请求消息，所述第一请求消息包括所述第二中继功能参数集；
    所述接收所述MME响应所述第一请求消息而发送的第一请求消息反馈消息，所述第一请求反馈消息包括所述N个支持中继功能的用户设备的用户标识以及所述N个第一中继功能参数集。
  27. 根据权利要求23至26任一项所述的网络设备，其特征在于，所述处理器获取远端用户设备的第二中继功能参数集，包括：
    从所述远端用户设备获取所述远端用户设备的所述第二中继功能参数集。
  28. 根据权利要求23至27任一项所述的网络设备，其特征在于，若所述网络设备为所述基站，所述处理器获取远端用户设备的第二中继功能参数集，包括：
    接收所述远端用户设备发送的第二请求消息，所述第二请求消息包括所述第二中继功能参数集。
  29. 根据权利要求23至28任一项所述的网络设备，其特征在于，若所述网络设备为所述MME，所述处理器获取远端用户设备的第二中继功能参数集，包括：
    接收所述远端用户设备发送的第三请求消息，所述第三请求消息包括所述第二中继功能参数集。
  30. 根据权利要求23至29任一项所述的网络设备，其特征在于，所述第一中继功能参数集包括以下中继功能参数中的至少一种：
    所述支持中继功能的用户设备支持的远端用户设备关联标识，所述支持中继功能的用户设备支持的设备到设备间连接的接入方式以及所述支持中继功能的用户设备支持的所述发现过程的发现机制。
  31. 根据权利要求23至30任一项所述的网络设备，其特征在于，所述第二中继功能参数集包括以下中继功能参数中的至少一种：
    所述支持中继功能的用户设备支持的远端用户设备关联标识，所述远端用户设备当前选择的设备到设备连接的接入方式以及所述远端用户设备选择的所述发现过程的发现机制。
  32. 根据权利要求23至31任一项所述的网络设备，其特征在于，所述处理器还用于：
    获取所述远端用户设备的第三中继功能参数集；
    将所述第三中继功能参数集并入所述第二中继功能参数集中以更新所述 第二中继功能参数集得到新的第二中继功能参数集；
    所述至少一个支持中继功能的用户设备的第一中继功能参数集包括所述新的第二中继功能参数集。
  33. 根据权利要求32所述的网络设备，其特征在于，所述第三中继功能参数集包括以下功能参数中的至少一种：
    所述远端用户设备当前选择的公共陆地网络PLMN标识，所述远端用户设备当前的服务频率。
  34. 根据权利要求23至33任一项所述的网络设备，其特征在于，所述第一通知消息包括以下参数中的至少一种：
    用于发起所述发现过程的指示信息，所述设备到设备间连接的接入方式，所述发现过程中发送和/或接收发现消息的载波频率，所述发现过程的发现机制以及所述发现过程中发送和/或接收发现消息所使用的发送和/或接收资源池。
  35. 根据权利要求23至34任一项所述的网络设备，其特征在于，若所述网络设备为所述MME，所述处理器向所述至少一个支持中继功能的用户设备发送第一通知消息，包括：
    向所述基站发送第三通知消息，所述第三通知消息用于指示所述基站向所述至少一个支持中继功能的用户设备发送所述第一通知消息。
  36. 根据权利要求35所述的网络设备，其特征在于，所述第三通知消息包括以下参数中的至少一种：
    所述至少一个支持中继功能的用户设备的用户设备标识，用于发起所述发现过程的指示信息，所述设备到设备间连接的接入方式，所述发现过程中发送和/或接收发现消息的载波频率，所述发现过程的发现机制以及所述发现过程中发送和/或接收发现消息所使用的发送和/或接收资源池。
  37. 根据权利要求34至36任一项所述的网络设备，其特征在于，所述处理器还用于：
    在所述处理器确定所述至少一个支持中继功能的用户设备中的一个支持中继功能的用户设备与所述远端用户设备连接后，所述处理器向所述至少一个支持中继功能的用户设备中除去所述一个支持中继功能的用户设备之外的其它支持中继功能的用户设备发送第四通知消息，所述第四通知消息用于通知所述其它支持中继功能的用户设备停止所述发现过程。
  38. 根据权利要求37所述的网络设备，其特征在于，所述第四通知消息包括以下参数中的至少一种：
    所述支持中继功能的用户设备支持的远端用户设备关联标识以及用于停止所述发现过程的指示信息。
  39. 根据权利要求35至37任一项所述的网络设备，其特征在于，若所述支持中继功能的用户设备处于连接状态，所述第一通知消息为专用控制消息和/或所述第四通知消息包括专用控制消息。
  40. 根据权利要求35至37任一项所述的网络设备，其特征在于，若所述支持中继功能的用户设备处于空闲状态或连接状态，所述第一通知消息为寻呼消息和/或所述第四通知消息包括寻呼消息。
  41. 根据权利要求39或40所述的网络设备，其特征在于，若所述第一通知消息为寻呼消息，所述第一通知消息还包括：所述至少一个支持中继功能的用户设备的用户设备标识。
  42. 根据权利要求23至33任一项所述的网络设备，其特征在于，所述第一通知消息包括时间标识，所述时间标识用于指示所述至少一个支持中继功能的用户设备在接收到所述第一通知消息并经过所述时间标识对应的预设时间段后停止所述发现过程。
  43. 一种用户设备，其特征在于，所述用户设备包括：
    存储有可执行程序代码的存储器；
    与所述存储器耦合的处理器；
    所述处理器调用所述存储器中存储的所述可执行程序代码，执行如下步骤：
    接收网络设备发送的第一通知消息，所述第一通知消息用于触发至少一个支持中继功能的用户设备发起设备到设备间的发现过程，所述至少一个支持中继功能的用户设备为所述网络设备从N个支持中继功能的用户设备中所确定，所述用户设备支持中继功能；
    基于所述第一通知消息发起所述发现过程。
  44. 根据权利要求43所述的用户设备，其特征在于，若所述第一通知消息包括寻呼消息，所述处理器基于所述第一通知消息发起所述发现过程，包括：
    在预设监听时刻接收所述寻呼消息；
    若所述第一通知消息包含所述用户设备的用户设备标识，基于所述第一通知消息发起所述发现过程。
PCT/CN2016/102617 2016-10-19 2016-10-19 一种控制设备到设备间发现的方法及相关设备 WO2018072157A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201680089283.9A CN109691149B (zh) 2016-10-19 2016-10-19 一种控制设备到设备间发现的方法及相关设备
PCT/CN2016/102617 WO2018072157A1 (zh) 2016-10-19 2016-10-19 一种控制设备到设备间发现的方法及相关设备
EP16919138.4A EP3522578B1 (en) 2016-10-19 2016-10-19 Method for controlling device-to-device discovery and related device
US16/343,237 US10708754B2 (en) 2016-10-19 2016-10-19 Method for controlling device-to-device discovery and related device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/102617 WO2018072157A1 (zh) 2016-10-19 2016-10-19 一种控制设备到设备间发现的方法及相关设备

Publications (1)

Publication Number Publication Date
WO2018072157A1 true WO2018072157A1 (zh) 2018-04-26

Family

ID=62019046

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/102617 WO2018072157A1 (zh) 2016-10-19 2016-10-19 一种控制设备到设备间发现的方法及相关设备

Country Status (4)

Country Link
US (1) US10708754B2 (zh)
EP (1) EP3522578B1 (zh)
CN (1) CN109691149B (zh)
WO (1) WO2018072157A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113068172A (zh) * 2020-01-02 2021-07-02 维沃移动通信有限公司 触发发现的方法、终端设备及网络设备

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102364074B1 (ko) * 2016-12-08 2022-02-18 소니그룹주식회사 단말 장치, 방법 및 기록 매체
EP3609250B1 (en) * 2017-04-28 2023-06-07 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Message transmission method, apparatus and system
CN110945935B (zh) 2017-06-29 2023-09-12 皇家飞利浦有限公司 允许可靠的无线通信的装置、基站和方法
US11432132B2 (en) * 2019-02-14 2022-08-30 Motorola Mobility Llc Dropping extraneous discovery messages
US11115894B2 (en) 2019-08-14 2021-09-07 Motorola Mobility Llc Managing FTM frames of WLAN RTT bursts
EP4079045A4 (en) * 2019-12-20 2023-08-16 Qualcomm Incorporated DISCOVERY SIGNAL TRANSMISSION CONTROL BETWEEN USER EQUIPMENT
CN116909416A (zh) * 2020-03-10 2023-10-20 华为技术有限公司 主动笔触控位置的检测方法和电子终端
CN114071801B (zh) * 2020-07-29 2024-01-16 华为技术有限公司 一种终端设备的状态指示方法及通信装置
CN115669213A (zh) * 2020-09-29 2023-01-31 Oppo广东移动通信有限公司 中继设备的选择方法、装置、设备及存储介质
CN112333795B (zh) * 2020-11-11 2023-10-27 维沃移动通信有限公司 网络接入方法及装置
CN116602015A (zh) * 2021-04-01 2023-08-15 Oppo广东移动通信有限公司 寻呼方法和终端设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104125620A (zh) * 2014-07-31 2014-10-29 宇龙计算机通信科技(深圳)有限公司 基于终端直连通信的中继选择的路由方法和路由方法
CN104812076A (zh) * 2014-01-27 2015-07-29 中兴通讯股份有限公司 设备到设备业务资源配置方法和装置
CN104902456A (zh) * 2015-04-10 2015-09-09 电信科学技术研究院 一种中继用户设备的信息处理及确定方法和设备
CN105228082A (zh) * 2015-08-21 2016-01-06 北京邮电大学 基于d2d通信的中继设备确定方法
US20160192439A1 (en) * 2014-12-29 2016-06-30 Umesh Phuyal Network-initiated discovery and path selection procedures for multi-hop underlay networks

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090282123A1 (en) * 2008-05-09 2009-11-12 Stefano Fornari Peer shared server event notification system and methods
US10250678B2 (en) 2010-07-07 2019-04-02 Qualcomm Incorporated Hybrid modes for peer discovery
JP5724498B2 (ja) * 2011-03-18 2015-05-27 株式会社リコー 割当装置、通信装置、仲介装置、仲介システム、割当方法、プログラム及び記録媒体
ITTO20110284A1 (it) * 2011-03-29 2011-06-28 Sisvel Technology Srl Procedimento di localizzazione cooperativa e relativi apparati
KR101694085B1 (ko) 2012-12-19 2017-01-06 텔레폰악티에볼라겟엘엠에릭슨(펍) 무선 통신 네트워크에서 중계 지원을 핸들링하기 위한 무선 장치, 네트워크 노드 및 방법
US10904326B2 (en) * 2013-06-28 2021-01-26 Apple Inc. Network assisted device-to-device discovery for peer-to-peer applications
US9584985B2 (en) * 2013-07-30 2017-02-28 Qualcomm Incorporated Managing a multimedia broadcast multicast service using an MBMS relay device
EP3120641B1 (en) * 2014-03-19 2021-01-20 Interdigital Patent Holdings, Inc. Device-to-device synchronization
CN107079380A (zh) * 2014-11-14 2017-08-18 株式会社Ntt都科摩 用户装置及d2d通信方法
CN107690832B (zh) * 2015-04-08 2021-06-29 交互数字专利控股公司 实现用于设备到设备(d2d)通信的移动中继
JPWO2016163541A1 (ja) * 2015-04-09 2018-02-01 株式会社Ｎｔｔドコモ ユーザ端末及び無線通信方法
CN107637162B (zh) * 2015-05-14 2022-05-10 苹果公司 Ue到网络中继发起和配置
US10212651B2 (en) * 2015-05-14 2019-02-19 Qualcomm Incorporated Systems, methods, and devices for link quality based relay selection
JP6620810B2 (ja) * 2015-06-25 2019-12-18 日本電気株式会社 無線端末、ｄ２ｄ通信制御装置、及び予備中継無線端末選択方法
TWI605693B (zh) * 2016-04-11 2017-11-11 國立清華大學 雙向放大轉送多輸入多輸出中繼系統之中繼點預編碼器選擇方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104812076A (zh) * 2014-01-27 2015-07-29 中兴通讯股份有限公司 设备到设备业务资源配置方法和装置
CN104125620A (zh) * 2014-07-31 2014-10-29 宇龙计算机通信科技(深圳)有限公司 基于终端直连通信的中继选择的路由方法和路由方法
US20160192439A1 (en) * 2014-12-29 2016-06-30 Umesh Phuyal Network-initiated discovery and path selection procedures for multi-hop underlay networks
CN104902456A (zh) * 2015-04-10 2015-09-09 电信科学技术研究院 一种中继用户设备的信息处理及确定方法和设备
CN105228082A (zh) * 2015-08-21 2016-01-06 北京邮电大学 基于d2d通信的中继设备确定方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113068172A (zh) * 2020-01-02 2021-07-02 维沃移动通信有限公司 触发发现的方法、终端设备及网络设备
CN113068172B (zh) * 2020-01-02 2022-06-17 维沃移动通信有限公司 触发发现的方法、终端设备及网络设备

Also Published As

Publication number Publication date
EP3522578A1 (en) 2019-08-07
US20190253869A1 (en) 2019-08-15
CN109691149B (zh) 2021-02-09
EP3522578A4 (en) 2019-08-07
CN109691149A (zh) 2019-04-26
EP3522578B1 (en) 2022-04-06
US10708754B2 (en) 2020-07-07

Similar Documents

Publication Publication Date Title
WO2018072157A1 (zh) 一种控制设备到设备间发现的方法及相关设备
US11102634B2 (en) Radio terminal and control method
EP3152963B1 (en) User equipment, cellular communication network node and method of controlling operation of a user equipment
JP6130838B2 (ja) 移動通信システム、移動通信ネットワーク、基盤装置、方法およびプログラム
EP3535994B1 (en) Mobility management for relaying
US11356838B2 (en) Tracking area update in RRC_INACTIVE
EP3384716B1 (en) Paging mechanism for wireless networks
JPWO2018216774A1 (ja) リレー無線端末及び無線端末
WO2018027820A1 (zh) 一种链接建立方法及相关设备
CN109076494B (zh) 在寻呼上下文中的无线电网络节点、核心网络节点和其中执行的方法
CN105430593B (zh) 处理用于装置对装置通信的开放直接发现的装置
WO2018126365A1 (zh) 信息传输的方法、终端设备和网络设备
US20230389110A1 (en) Terminal device, core network node, network device and method therein for facilitating paging procedure
US10999819B2 (en) Method and apparatus to support mobility in LWA
TWI763685B (zh) 數據傳輸的方法、接入網設備、終端設備和網絡實體
CN115529662A (zh) 一种通信方法及装置
WO2021012188A1 (zh) 通信处理方法及相关设备

Legal Events

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

Ref document number: 16919138

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2016919138

Country of ref document: EP

Effective date: 20190502