WO2014029271A1 - 设备到设备通信方法、装置及系统 - Google Patents

设备到设备通信方法、装置及系统 Download PDF

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Publication number
WO2014029271A1
WO2014029271A1 PCT/CN2013/080915 CN2013080915W WO2014029271A1 WO 2014029271 A1 WO2014029271 A1 WO 2014029271A1 CN 2013080915 W CN2013080915 W CN 2013080915W WO 2014029271 A1 WO2014029271 A1 WO 2014029271A1
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WO
WIPO (PCT)
Prior art keywords
communication
user equipment
wlan
network side
user
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2013/080915
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English (en)
French (fr)
Inventor
许辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
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 ZTE Corp filed Critical ZTE Corp
Priority to US14/422,586 priority Critical patent/US20150245191A1/en
Priority to EP13831554.4A priority patent/EP2890205A4/en
Publication of WO2014029271A1 publication Critical patent/WO2014029271A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/005Discovery of network devices, e.g. terminals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/03Reselecting a link using a direct mode connection
    • H04W36/033Reselecting a link using a direct mode connection in pre-organised networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/14Direct-mode setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/14Reselecting a network or an air interface
    • H04W36/142Reselecting a network or an air interface over the same radio air interface technology
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10Small scale networks; Flat hierarchical networks
    • H04W84/12WLAN [Wireless Local Area Networks]

Definitions

  • the present invention relates to the field of communications, and in particular to a device to device (D2D) communication method, apparatus, and system.
  • D2D device to device
  • M2M Machine to Machine
  • the M2M concept emerged in the 1990s, but only stayed in the theoretical stage. After 2000, with the development of mobile communication technology, it is possible to realize the networking of machine equipment with mobile communication technology.
  • the M2M business appeared on the market around 2002 and developed rapidly in the following years, becoming the focus of many communication equipment vendors and telecom operators. At present, the number of machines in the world is much larger than that of people, so it is possible to foresee the good market prospects of M2M technology.
  • MTC Machine Type Communication
  • H2H Human to Human
  • QoS Quality of Service
  • D2D includes two aspects: discovery and communication. It is found that the user equipment having the capability of D2D is identified in the adjacent area, and the communication, that is, the D2D user equipment, performs user plane data transmission through direct connection between users or through the eNB. In view of the problem that the D2D user equipment communication in the related art causes the operator network load to be relatively large, an effective solution has not been proposed yet.
  • a D2D communication method including: a first D2D user equipment receives signaling of an operator network side, where the signaling is used to notify the first D2D user equipment to use a wireless local area network
  • the WLAN performs inter-device communication; the first D2D user equipment uses the WLAN to directly communicate with one or more second D2D user equipments of a predetermined area.
  • the method further includes: the first D2D device discovering the one or more second D2D user equipments in the predetermined area; The first D2D device sends a WLAN communication request to the operator network side; or the first D2D user equipment and the one or more second D2D user equipments are discovered by the operator network side in the predetermined area.
  • the WLAN communication request includes at least one of the following: an identifier of the second D2D user equipment, an application identifier, and a WLAN communication identifier.
  • the signaling further includes: WLAN communication indication information, where the WLAN communication indication information includes: a parameter of a D2D user equipment identity and/or a WLAN communication participating in the WLAN communication, where the WLAN communication refers to The WLAN performs direct communication between user equipments.
  • the first D2D user equipment communicates with the second D2D user equipment of the predetermined area
  • the first D2D user equipment is switched to the control of the operator network side to An operator network; the switched first D2D user equipment communicates with the one or more D2D user equipments in the operator network.
  • the predetermined area comprises: an area that satisfies D2D discovery or an area that satisfies D2D communication.
  • a D2D communication method including: receiving, by an operator network side, a wireless local area network WLAN communication request sent by a first D2D user equipment; or the operator network side discovering the first area in a predetermined area a D2D user equipment and one or more second D2D user equipment, wherein the WLAN communication request is used to request the first D2D user equipment and the first D2D user equipment to find one or more of the first area in the predetermined area
  • the two D2D user equipments perform inter-device communication; the operator network side sends signaling to the first D2D user equipment, and notifies the first D2D user equipment to perform the wireless local area network (WLAN) with the one or more D2D user equipments.
  • Direct communication including: receiving, by an operator network side, a wireless local area network WLAN communication request sent by a first D2D user equipment; or the operator network side discovering the first area in a predetermined area a D2D user equipment and one or more second D2D user equipment, wherein the WLAN communication request is used to request the
  • the WLAN communication request includes at least one of the following: an identifier of the second D2D user equipment, an application identifier, and a WLAN communication identifier.
  • the method before the signaling of the first D2D user equipment by the operator network, the method further includes: determining, by the operator network side, the first D2D user equipment and the one or more second D2D user equipments Meet the conditions of WLAN communication.
  • the signaling further includes: WLAN communication indication information, where the WLAN communication indication information comprises: a parameter of a D2D user equipment identity and/or a WLAN communication participating in the WLAN communication.
  • the method further includes: when it is determined that the preset condition for switching from the WLAN to the operator network is met, the carrier network side Controlling that the first D2D user equipment and the one or more second D2D user equipments are handed over to the operator network for communication; when it is determined that the preset condition for switching from the carrier network to the WLAN is met, The operator network side controls the first D2D user equipment and the one or more second D2D user equipments to switch to the WLAN for direct communication.
  • the first condition includes at least one of the following: an operator policy, a network load, and a distance between the D2D communication devices; the second condition includes at least one of the following: an operator policy, a network load, and a distance between the D2D communication devices.
  • a D2D communication device is provided, which is applied to a D2D user equipment, and includes: a first receiving module, configured to receive signaling of an operator network side, where the signaling is used to notify a Description
  • the user equipment uses wireless local area network (WLAN) for inter-device communication; the first communication module is configured to use the WLAN to communicate directly with one or more second D2D user equipments of the predetermined area.
  • WLAN wireless local area network
  • the apparatus further includes: a first discovery module, configured to discover the one or more second D2D user equipments in the predetermined area; and a sending module, configured to send a WLAN communication request to the operator network side.
  • the apparatus further includes: a switching module configured to switch to an operator network under control of the operator network side; and a second communication module configured to be in the carrier network and the one or more The D2D user equipment communicates.
  • a D2D communication device which is applied to an operator network side, and includes: a third receiving module, configured to receive a wireless local area network WLAN communication request sent by a first D2D user equipment, where The WLAN communication request is used to request the first D2D user equipment to perform inter-device communication with one or more second D2D user equipments discovered by the first D2D user equipment in a predetermined area; or a second discovery module is set to be in the predetermined The area is configured to discover the first D2D user equipment and the one or more second D2D user equipments; the sending module is configured to send signaling to the first D2D user equipment, to notify the first D2D user equipment to use the WLAN and the one or Multiple D2D user equipments communicate directly.
  • a third receiving module configured to receive a wireless local area network WLAN communication request sent by a first D2D user equipment, where The WLAN communication request is used to request the first D2D user equipment to perform inter-device communication with one or more second D2D user equipments discovered by the first D2D
  • the apparatus further includes: a determining module, configured to determine that the first D2D user equipment and the one or more second D2D user equipments satisfy a condition of WLAN communication.
  • the foregoing apparatus further includes: a first control module, configured to control the first D2D user equipment and the one or more second D2D users when it is determined that the preset condition for switching from the WLAN to the operator network is met The device switches to the carrier network for communication; the second control module is configured to control the first D2D user equipment and the one or more second D2D users when it is determined that the preset condition of the slave carrier network is met The device switches to the WLAN for direct communication. .
  • a D2D communication system comprising: the above-described D2D communication device (applied to a D2D user equipment) and the above-described D2D communication device (applied to an operator network side).
  • the first D2D user equipment receives the first signaling on the operator network side
  • the first D2D user equipment uses the WLAN to communicate with one or more second D2D user equipments in the predetermined area to implement the D2D user equipment.
  • the WLAN is used for communication, which solves the problem that the D2D user equipment communication in the related art causes the carrier network load to be relatively large, thereby reducing the load on the operator network of the D2D device and improving the utilization of the WLAN resource.
  • FIG. 1 is a schematic diagram of network communication according to the related art
  • FIG. 2 is a schematic diagram of D2D communication according to the related art
  • FIG. 3 is a first flowchart of a D2D communication method according to an embodiment of the present invention
  • FIG. 3 is a first flowchart of a D2D communication method according to an embodiment of the present invention.
  • FIG. 5 is a first structural block diagram of a D2D communication apparatus according to an embodiment of the present invention
  • FIG. 6 is a block diagram of a preferred first structure of a D2D communication apparatus according to an embodiment of the present invention.
  • Figure 7 is a second block diagram of a D2D communication device in accordance with an embodiment of the present invention;
  • Figure 8 is a block diagram of a preferred second structure of a D2D communication device in accordance with an embodiment of the present invention;
  • Figure 9 is a D2D communication in accordance with an embodiment of the present invention.
  • FIG. 10 is a flow chart 1 of a D2D communication method in accordance with a preferred embodiment of the present invention
  • Figure 11 is a flow chart 2 of a D2D communication method in accordance with a preferred embodiment of the present invention
  • Figure 12 is a preferred embodiment in accordance with the present invention.
  • FIG. 13 is a flowchart 4 of the D2D communication method according to a preferred embodiment of the present invention
  • FIG. 14 is a preferred embodiment according to the present invention.
  • FIG. 15 is a structural block diagram of a user equipment for implementing D2D communication by WLAN according to a preferred embodiment of the present invention.
  • a Wireless Local Area Network operates in a 2.5 GHz or 5 GHz unlicensed frequency band and is a wireless LAN.
  • WLAN uses a radio frequency (Radio Frequency, RF for short) technology to form a local area network, enabling wireless local area networks to utilize simple storage.
  • RF Radio Frequency
  • the architecture allows the user to pass through it without the limitations of network cabling, facilitating data transmission and reception.
  • there is also direct communication between devices in the WLAN and direct communication between devices using WLAN is used to implement D2D communication requirements.
  • the D2D user equipment when the D2D user equipment is found to be located in the WLAN communication range, it is determined by which network element the D2D communication is implemented by using the WLAN, and the switching between the WLAN communication mode and the network communication mode is implemented.
  • the invention realizes the communication between the D2D user equipments through the WLAN, thereby solving the problem that the communication between the D2Ds in the related art causes the operator network side load to be relatively large.
  • the invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.
  • the preferred embodiment provides a D2D communication method, and FIG.
  • Step S302 The first D2D user equipment receives the signaling of the operator network side, where the signaling is used to notify the first D2D user equipment to use the WLAN for inter-device communication.
  • Step S304 The first D2D user equipment uses the WLAN to perform direct communication with one or more second D2D user equipments of the predetermined area.
  • the first D2D user equipment uses the WLAN to directly communicate with one or more second D2D user equipments in the predetermined area, thereby implementing direct use of the WLAN between the D2D user equipments. Communication reduces the load on the carrier network of the D2D device and improves the utilization of WLAN resources.
  • the first D2D user equipment may also perform direct communication with one or more second D2D user equipments of the predetermined area without using the WLAN according to its own needs or system configuration.
  • the first D2D user equipment can feed back a message to the operator network side, indicating that the first D2D does not use the WLAN for direct communication.
  • one or more D2D user equipments may be discovered by the first D2D user equipment or discovered by the operator network side.
  • Manner 1 When the first D2D device discovers the one or more second D2D user equipments in the predetermined area, the first D2D device sends a WLAN communication request to the operator network side, and then the operator network side sends the first D2D user equipment to the first D2D user equipment. Signaling.
  • Manner 2 When the first D2D user equipment and the one or more second D2D user equipments are found by the operator network side in the predetermined area, the operator network side sends signaling to the first D2D user equipment.
  • the predetermined area includes: an area that satisfies D2D discovery or an area that satisfies D2D communication.
  • the area that satisfies the D2D discovery and the area that satisfies the D2D communication may be different areas.
  • the WLAN communication request includes at least one of the following: an identifier of the second D2D user equipment, an application identifier, and a WLAN communication identifier.
  • the WLAN communication indication information may be carried in the first signaling, where the WLAN communication indication information includes: a D2D user equipment identifier participating in the WLAN communication and/or The parameter of the WLAN communication, wherein the WLAN communication refers to direct communication between user equipments through the WLAN.
  • the first D2D user equipment communicates with the second D2D user equipment of the predetermined area by using the WLAN
  • the first D2D user equipment switches to the carrier network under the control of the operator network side;
  • the subsequent first D2D user equipment communicates with the one or more D2D user equipments in the carrier network. This preferred manner enables switching of communication between the WLAN and the carrier network by the D2D user equipment.
  • the predetermined area comprises: an area that satisfies D2D discovery or an area that satisfies D2D communication.
  • the preferred embodiment provides a D2D communication method
  • FIG. 4 is a first flowchart of the D2D communication method according to an embodiment of the present invention. As shown in FIG. 4, the method includes the following steps S402 to S404.
  • Step S402 The operator network side receives the wireless local area network WLAN communication request sent by the first D2D user equipment; or the operator network side finds the first D2D user equipment and one or more second D2D user equipments in the predetermined area, where the WLAN The communication request is used to request the first D2D user equipment to perform inter-device communication with the one or more second D2D user devices discovered by the first D2D user equipment in the predetermined area.
  • Step S404 The operator network side sends signaling to the first D2D user equipment, and triggers the first D2D user equipment to directly communicate with the one or more D2D user equipments by using the WLAN.
  • the first D2D user equipment is triggered to directly communicate with one or more second D2D user equipments in the predetermined area through the WLAN, thereby implementing the D2D user equipment.
  • Direct communication using WLAN reduces the load on the carrier network of the D2D device and improves the utilization of WLAN resources.
  • the WLAN communication request includes at least one of the following: an identifier of the second D2D user equipment, an application identifier, and a WLAN communication identifier.
  • the operator network side determines that the first D2D user equipment and the one or more second D2D user equipments satisfy the conditions of the WLAN communication before the step S402.
  • the first signaling further carries WLAN communication indication information, where the WLAN communication indication information includes: a D2D user equipment identifier and/or a parameter of the WLAN communication participating in the WLAN communication.
  • the operator network side controls the first D2D user equipment and the one or more second D2D user equipment switches. Communicating to the operator network; when determining that the preset second condition from the carrier network to the WLAN is met, the operator network side controls the first D2D user equipment and the one or more second D2D user equipments to switch to the WLAN. Direct communication.
  • the first condition includes at least one of the following: an operator policy, a network load, and a distance between the D2D communication devices; and the second condition includes at least one of the following: an operator policy, a network load, and a distance between the D2D communication devices.
  • a D2D communication software is also provided for performing the technical solutions described in the above embodiments and preferred embodiments.
  • a storage medium is provided, in which the above D2D communication software is stored, including but not limited to: an optical disk, a floppy disk, a hard disk, a rewritable memory, and the like.
  • the embodiment of the present invention further provides a D2D communication device, which is applied to a D2D user equipment, and the D2D communication device can be used to implement the D2D communication method and a preferred implementation manner, which have been described, and will not be described again. The modules involved in the D2D communication device will be described.
  • FIG. 5 is a first structural block diagram of a D2D communication apparatus according to an embodiment of the present invention. As shown in FIG. 5, the apparatus includes: a first receiving module 52, and a first communication module 54, which is described in detail below.
  • the first receiving module 52 is configured to receive the first signaling on the operator network side, where the first signaling is used to notify the D2D user equipment to use the WLAN for inter-device communication; the first communication module 54 is connected to the first receiving Module 52, configured to communicate directly with one or more second D2D user devices of the predetermined area using the WLAN.
  • FIG. 6 is a first block diagram of a first structure of a D2D communication device according to an embodiment of the present invention. As shown in FIG. 6, the device further includes: a first discovery module 62, a sending module 64, a switching module 66, and a second communication module 68. The above structure will be described in detail below.
  • the foregoing apparatus further includes: a first discovery module 62, configured to discover one or more second D2D user equipments in the predetermined area; and a sending module 64 connected to the first discovery module 62, configured to be to the operator network The side sends a WLAN communication request.
  • the foregoing apparatus further includes: a switching module 66, configured to switch to the operator network under the control of the operator network side; the second communication module 68, connected to the switching module 66, configured to be in the carrier network with one or Multiple D2D user devices communicate.
  • a D2D communication software is also provided for performing the technical solutions described in the above embodiments and preferred embodiments.
  • a storage medium in which the above D2D communication software is stored, including but not limited to: an optical disk, a floppy disk, a hard disk, a rewritable memory, and the like.
  • the embodiment of the present invention further provides a D2D communication device, which is applied to the operator network side.
  • the D2D communication device can be used to implement the D2D communication method and the preferred implementation manner, which have been described, and will not be described again.
  • the modules involved in the D2D communication device will be described. As used hereinafter, the term "module" can implement a combination of software and/or hardware for a predetermined function.
  • FIG. 7 is a second structural block diagram of a D2D communication apparatus according to an embodiment of the present invention.
  • the apparatus includes: a third receiving module 72, a second discovery module 74, and a sending module 76.
  • the third receiving module 72 is configured to receive a wireless local area network WLAN communication request sent by the first D2D user equipment, where the WLAN communication request is used to request the first D2D user equipment and the first D2D user equipment to discover in a predetermined area.
  • FIG. 8 is a block diagram of a preferred second structure of a D2D communication device according to an embodiment of the present invention. As shown in FIG. 8, the device further includes: a determining module 82, a first control module 84, and a second control module 86.
  • the apparatus further includes: a determining module 82, connected to the first sending module 76, configured to determine that the first D2D user equipment and the one or more second D2D user equipments satisfy the condition of the WLAN communication.
  • the foregoing apparatus further includes: a first control module 84, configured to control the first D2D user equipment and the one or more second D2Ds when determining that the preset first condition from the WLAN to the operator network is met The user equipment switches to the carrier network for communication; the second control module 86 is configured to control the first D2D user equipment and the one or more second D2D users when determining that the second condition of the preset slave carrier network is met The device switches to WLAN for direct communication. .
  • FIG. 9 is a structural block diagram of a D2D communication system according to an embodiment of the present invention.
  • the system includes a D2D communication device (applied to a D2D user equipment). 2J3 ⁇ 4 D2D Communication device (applied to the operator network side) ⁇ where the D2D communication device (applied to the D2D user equipment) 2_ is structured as shown in FIG. 5 or 6, and the D2D communication device (applied to the operator network side) As shown in FIG. 7 or 8, it will not be described again here.
  • the D2D communication device applied to a D2D user equipment
  • 2_ is structured as shown in FIG. 5 or 6
  • the D2D communication device applied to the operator network side
  • Preferred Embodiment 1 This preferred embodiment provides a method for WLAN to use for D2D communication.
  • the method includes: the network side or the D2D user equipment discovering other D2D user equipments in the neighboring area; the network side notification or the D2D user equipment requesting to implement the WLAN. D2D communication;
  • the network side determines the switching between the WLAN communication and the network communication mode by the D2D user equipment.
  • the D2D user equipment can be communicated by using WLAN.
  • the effect of reducing the network load and reducing the dependence of the D2D communication on the network can be achieved.
  • Preferred embodiment two The preferred embodiment provides a method for WLAN for D2D communication, and FIG.
  • Step S902 Discover the D2D user equipment in the neighboring area.
  • the neighboring area is an area that satisfies a predetermined rule, that is, a D2D user equipment can be found in the area.
  • the neighboring area discovered by the D2D and the neighboring area of the D2D communication may be different and may be separately defined.
  • the discovery in the preferred embodiment may be performed by the network side device and/or the D2D user device, and the network side device or the D2D user device searches for the D2D user equipment of the neighboring area within a specific time period, and the specific time period refers to the D2D discovery.
  • the network side device refers to The eNB (evolved NodeB) needs to explain that the discovery process needs to be performed on the licensed frequency band, that is, not through the existing discovery mode of the WLAN.
  • the D2D user equipment in the preferred embodiment refers to: a D2D user equipment having D2D discovery and communication capabilities and having contracted to use the D2D function. It should be noted that the D2D user equipment in this application has a WLAN communication function.
  • the network side device if the network side device discovers the D2D user equipment in the neighboring area, the network side may send a notification message to the D2D user equipment in the neighboring area.
  • the user equipment that has signed the D2D and enabled the D2D discovery function may Received the above notification message.
  • the user equipment finds other D2D user equipments in the neighboring area the user equipment may send indication information to the network side to notify the discovered D2D user equipment.
  • Step S904 WLAN communication is adopted between the D2D user equipments.
  • the WLAN communication may be performed by using the network side notification or the D2D user equipment request;
  • the network side notification includes the identifier of the communication party or parties, the WLAN communication parameter, and the like; wherein the identifier may be an inherent identifier of the UE, such as IMSI, MSISDN , IMEI, etc., or the code of the UE, such as Zhang San's IPhone-4.
  • the WLAN communication parameters include a WLAN communication identifier, a WLAN communication resource, a WLAN signal strength, a distance between the D2D user devices, and the like, wherein the WLAN communication identifier is used to indicate that the communication is performed by using the WLAN.
  • the network side determines whether WLAN communication can be performed according to the distance between the user equipments and the user equipment capability; if the distance between the user equipments is within the WLAN communication range and has the WLAN communication capability, the WLAN communication may be performed, otherwise the WLAN may not be performed.
  • Communication as a preferred implementation manner: the D2D user equipment request includes the identity of the communication partner, the WLAN communication indication, etc.; the network side determines whether the two or more parties of the communication can communicate with the WLAN, and if so, the network side sends an acknowledgment response to the D2D user equipment. And WLAN communication parameters, otherwise, the network side sends a rejection response and a rejection reason to the D2D user equipment.
  • the WLAN communication is performed autonomously by the D2D device, that is, the network side does not control the resources of the WLAN communication; and the security and charging functions can be performed according to the local policy of the operator.
  • the user plane data is directly performed by the user equipment, and the control plane signaling is performed through the network or the D2D user equipment to implement control over the WLAN communication.
  • the D2D user equipment disconnects and releases the corresponding communication resources.
  • Step S906 It is judged whether to continue communication through WLAN, if yes, step S904 is performed, otherwise step S908 is performed.
  • the determining may be performed by the user equipment or the network side device.
  • Step S908 The D2D user equipment communicates through the network, and the process ends.
  • the D2D user equipment cannot continue to communicate through the WLAN, and the network side switches the user equipment to continue communication through the network; preferably, if the user equipment is located in an area without network coverage, such as a public security scenario, the user equipment Communication cannot continue over the network and communication is interrupted.
  • the network communication ends the user equipment sends a termination communication request to the network side, and the network side disconnects and releases the communication resource.
  • Preferred embodiment three The preferred embodiment provides a method for the D2D communication in the WLAN.
  • the scenario in the preferred embodiment is: the network side discovers the D2D user equipment and indicates the WLAN communication
  • FIG. 11 is a D2D communication method according to a preferred embodiment of the present invention. Flowchart 2, as shown in FIG.
  • Step S1002 The network side finds two D2D devices in the adjacent area.
  • the neighboring area is a neighboring area specified for D2D discovery.
  • the two D2D user equipments comprise two or more D2D user equipments.
  • Step S1004 The network side sends indication information that uses WLAN communication to the D2D user equipment.
  • the WLAN communication needs to satisfy two conditions: Condition 1: The user equipment has the capability of WLAN communication.
  • Condition 2 The distance between user devices is within the WLAN communication range.
  • the network side determines whether the user equipment has the WLAN communication capability by querying the subscription data. For example, the network side queries the HSS/HLR for the subscription data of the user equipment.
  • the network side if the network side determines that the UE satisfies the condition of the WLAN communication, the network side sends the WLAN communication indication information to the D2D user equipment.
  • the indication information of the WLAN communication includes: a user equipment identifier participating in the WLAN communication, and a parameter of the WLAN communication.
  • Step S1006 The D2D user equipment communicates by using the WLAN.
  • the D2D user equipment utilizes the received WLAN communication parameters for WLAN communication.
  • the billing can be performed by using the existing WLAN related process, and the network side monitors the WLAN communication between the D2D devices to ensure the quality of service (QoS).
  • Step S1008 It is judged whether to continue communication through WLAN.
  • step S1006 If the determination result is yes, step S1006 is performed, otherwise step S1010 is performed. It should be noted that the operation of this step is the same as that of step S908, and details are not described herein again.
  • Step S1010 The D2D user equipment continues to communicate through the network, and the process ends. It should be noted that this step is the same as step S910, and details are not described herein again.
  • the preferred embodiment of the present invention provides a method for WLAN to be used for D2D communication.
  • the scenario of the preferred embodiment is: the user equipment discovers the D2D user equipment and requests WLAN communication
  • FIG. 12 is a D2D according to a preferred embodiment of the present invention. Flowchart 3 of the communication method, as shown in FIG.
  • Step S1102 The D2D user equipment discovers other D2D user equipments in the neighboring area.
  • the D2D user equipment starts the discovery function, and periodically detects the D2D user equipment in the adjacent area; wherein the detection period is set in advance, and in the above period, the D2D user equipment sends a signal on the predetermined resource, correspondingly The D2D user equipment detects signals of other D2D user equipments during the discovery period.
  • Step S1104 The D2D user equipment sends a request for using WLAN communication to the network side.
  • Step S1106 The network side determines whether WLAN communication can be performed. If the determination result is yes, the process goes to step S1108, otherwise step S1114 is performed.
  • the WLAN communication needs to satisfy two conditions: Condition 1: The user equipment has the capability of WLAN communication.
  • Condition 2 The distance between user devices is within the WLAN communication range. The network side determines whether the user equipment has the WLAN communication capability by querying the subscription data.
  • the network side queries the HSS/HLR for the subscription data of the user equipment.
  • the network side determines that the condition of the WLAN communication is met, the network side sends the WLAN communication indication information to the D2D user equipment.
  • Step S1108 The network side sends response information and WLAN communication parameters.
  • the response information indicates that the network side accepts the WLAN communication request.
  • Step S1110 The D2D user equipment communicates through the WLAN. It should be noted that this step is the same as step S1006, and details are not described herein again.
  • step S1112 it is judged whether or not to continue communication through WLAN. If the determination result is yes, the process goes to step S1110, otherwise step S1116 is performed.
  • Step S1114 The network side sends a reject response message, indicating that the communication is performed through the network.
  • the rejection information includes a reason for rejection, that is, the communication cannot be continued through the WLAN; preferably, the network side determines that the communication can continue to be communicated through the network, and the indication information is sent, otherwise the network side indicates the communication interruption and the reason.
  • Step S1116 Start communication through the network until the communication ends. In this step, the D2D user equipment releases the WLAN communication resources and continues communication on the resources allocated on the network side.
  • the preferred embodiment of the present invention provides a method for WLAN to be used for D2D communication.
  • the scenario of the preferred embodiment is: the network side discovers the D2D user equipment, the D2D user equipment requests the WLAN communication, and FIG. 13 is a preferred implementation according to the present invention.
  • Flowchart 4 of the D2D communication method of the example, as shown in FIG. 13, the method includes the following steps S1202 to S1218.
  • Step S1202 The network side finds two D2D user equipments in the adjacent area. It should be noted that this step is the same as step S1002, and details are not described herein again.
  • Step S1204 The network side sends the notification information to the D2D user equipment in the neighboring area.
  • the notification message includes: a D2D user equipment identifier in the current neighboring area, a D2D application identifier on the neighboring area D2D user equipment, and the like; if the user equipment enters or leaves the neighboring area, the network side updates the notification message.
  • Step S1206 The D2D user equipment requests WLAN communication from the network side. In this step, the D2D user equipment receives the notification message, and finds that the neighboring area has an application of interest to the network, and triggers the D2D user equipment to send the WLAN communication request information to the network side, including: the identifier of the other party's D2D user equipment, the application identifier, and the WLAN. Communication logo, etc.
  • Step S1208 The network side determines whether WLAN communication can be performed.
  • step S1210 If the determination result is yes, step S1210 is performed, otherwise step S1216 is performed. This step is the same as step S908, and details are not described herein again.
  • Step S1210 The network side sends response information and WLAN communication parameters. This step is the same as step S908, and details are not described herein again.
  • Step S1212 The user equipment communicates through the WLAN. This step is the same as step S1108, and details are not described herein again.
  • step S1214 it is determined whether to continue the communication via WLAN. If the determination result is yes, step S1212 is performed, otherwise step S1218 is performed. If the user equipment cannot directly communicate with D2D and cannot communicate through the intermediate node, the network side switches the communication to the network communication mode.
  • Step S1216 The network side sends a rejection response message, indicating that communication is performed through the network. This step is the same as step S1108, and details are not described herein again.
  • step S1218 communication through the carrier network is started until the communication ends. This step is the same as step S1116, and details are not described herein again.
  • Preferred Embodiment 6 This preferred embodiment provides a system for implementing D2D communication by WLAN, and FIG. 13 is a structural block diagram of a system for implementing D2D communication by WLAN according to a preferred embodiment of the present invention. As shown in FIG.
  • the system includes: 132 (provided to perform the functions of the D2D user equipment in the above preferred embodiment) and the network side 134 (provided to perform the function of the operator network side in the above preferred embodiment), the above structure will be described in detail below.
  • the network side 134 including the eNB, the MME, is configured to discover the D2D user equipment of the neighboring area, and instructs the D2D user equipment to communicate by using the WLAN.
  • the user equipment 132 is configured to discover the D2D user equipment of the neighboring area, and perform WLAN with the neighboring area D2D user equipment. Communication.
  • the network side 134 is further configured to determine whether WLAN communication can be adopted, and send a notification message to the D2D user equipment of the neighboring area, and switch the communication manner between the WLAN and the network, and start or end the WLAN communication according to the request of the user equipment.
  • the user equipment 132 is further configured to receive a notification message of the neighboring area, requesting WLAN communication of the neighboring area.
  • FIG. 15 is a structural block diagram of a user equipment for implementing D2D communication by a WLAN according to a preferred embodiment of the present invention. As shown in FIG.
  • the user equipment includes: a discovery unit 1322 (setting To perform the functions of the first discovery module 62 in the above embodiment, the communication unit 1324 (which is configured to perform the functions of the discovery module 64 and the first communication module 54 in the above embodiment), the above structure will be described in detail below.
  • the discovery unit 1322 is configured to discover other D2D user equipments of the neighboring area;
  • the communication unit 1324 is connected to the discovery unit 1322, and is configured to send a WLAN communication request to the network side, and is further configured to perform WLAN communication with the D2D user equipment of the neighboring area.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device so that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or Multiple modules or steps are made into a single integrated circuit module.
  • the invention is not limited to any particular combination of hardware and software.
  • the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

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Abstract

本发明公开了设备到设备通信方法、装置及系统,该方法包括:第一D2D用户设备接收运营商网络侧的信令,其中,该信令用于通知第一D2D用户设备使用WLAN进行设备间通信;第一D2D用户设备使用WLAN与预定区域的一个或多个第二D2D用户设备进行直接通信。通过本发明,降低了D2D用户设备对运营商网络的负荷。

Description

设备到设备通信方法、 装置及系统
技术领域 本发明涉及通信领域, 具体而言, 涉及一种设备到设备 (Device to Device, 简称 为 D2D) 通信方法、 装置及系统。 背景技术 机器对机器 (Machine to Machine, 简称为 M2M) 指机器之间建立连接的所有技 术和手段。 M2M 理念在上个世纪九十年代就出现了,但是只停留在理论阶段。 2000 年 以后,随着移动通信技术的发展, 以移动通信技术实现机器设备的联网成为可能。 2002 年左右 M2M 业务就在市场上出现, 并在随后的几年迅速发展, 成为了众多通信设备 商和电信运营商的关注焦点。 目前全球的机器数量比人的数量要多很多, 因此可以预 见到 M2M技术的良好的市场前景。 对 M2M通信应用场景研究表明在移动网络上提供 M2M通信具有潜在的市场前 景。 但 M2M业务对系统提出了很多新的要求, 为了增强移动网络在这方面的竞争力, 有必要对现有的移动网络进行优化, 来更有效的支持 M2M通信。 现有的移动通信网络主要针对人与人的通信进行设计, 而对机器与机器, 人与机 器的通信则优化不足。此外,运营商如何能够以低成本提供 M2M通信服务,也是 M2M 通信部署成功的关键。 基于以上情况, 有必要研究移动网络支持 M2M通信的解决方案, 解决方案要最 大限度重用现有网络, 降低大量 M2M通信对网络造成的影响以及运营维护的复杂度。 目前电信市场竞争日趋激烈, 资费不断下降, 运营商利润空间不断减小, 以人为 基础的通信市场正在趋于饱和, M2M对运营商来说是全新的发展机遇。 为了有效地利用移动网络资源, 第三代合作伙伴计划 (3rd Generation Partnership Project, 简称为 3GPP) 提出了机器类型通信 (Machine Type Communication, 简称为 MTC) , 即机器对机器 (Machine to Machine )、 机器对人(Machine to Man)进行通讯 的业务, 其业务范围远远超出了以往人对人(Human to Human, 简称为 H2H)之间的 通讯, MTC在接入控制、 计费、 安全性、 QoS、 业务模式等方面与现在的 H2H通讯 模式有很大的区别。 设备到设备 (D2D, Device to Device)通信是指邻近的设备间直接通信, 如蓝牙, 由 于缺少网络管控, D2D通信一般采用非授权频谱, 如 2.4GHz。 随着智能手机的快速普 及, 出现了很多新的应用, 如基于位置应用, 社交应用等等。 在移动通信网络中, 用 户设备之间的通信必须通过网络进行, 如图 1所示, 即使两个设备位于邻近的位置, 这是因为网络运营商需要对授权频谱进行管控,当通信双方使用授权频谱进行通信时, 必须通过网络, 以实现网络对通信活动的资源调度, 计费和管理等。 为了降低网络负 载, 有些公司提出了邻近设备直接通信的设想, 如图 2所示, 图中实线表示用户面通 信路径,虚线表示控制面通信路径。在 MTC中,也存在 MTC设备间直接通信的需求, 如 MTC设备之间以及 MTC设备与网关之间需要进行通信, 目前 3GPP也开始对 D2D 通信进行研究。 目前 D2D包括两个方面: 发现和通信。 发现即在邻近区域内识别具有 D2D的能力的用户设备, 通信即 D2D用户设备通过用户间直联或经过 eNB进行用户 面数据传输。 针对相关技术中 D2D用户设备通信导致运营商网络负荷比较大的问题, 目前尚未 提出有效的解决方案。 发明内容 针对相关技术中 D2D用户设备通信导致运营商网络负荷比较大的问题,本发明实 施例提供了 D2D通信方法、 装置及系统, 以至少解决该问题。 根据本发明的一个方面, 提供了一种 D2D通信方法, 包括: 第一 D2D用户设备 接收运营商网络侧的信令, 其中, 所述信令用于通知所述第一 D2D用户设备使用无线 局域网 WLAN进行设备间通信;所述第一 D2D用户设备使用所述 WLAN与预定区域 的一个或多个第二 D2D用户设备进行直接通信。 优选地, 在第一 D2D用户设备接收运营商网络侧的第一信令之前, 还包括: 所述 第一 D2D设备在所述预定区域发现所述一个或多个第二 D2D用户设备;所述第一 D2D 设备向所述运营商网络侧发送 WLAN通信请求; 或所述第一 D2D用户设备和所述一 个或多个第二 D2D用户设备被所述运营商网络侧在所述预定区域发现。 优选地, 所述 WLAN通信请求包括以下至少之一: 第二 D2D用户设备的标识、 应用标识、 WLAN通信标识。 优选地, 所述信令还包括: WLAN通信指示信息, 其中, 所述 WLAN通信指示 信息包括: 参与 WLAN通信的 D2D用户设备标识和 /或 WLAN通信的参数, 其中, 所述 WLAN通信是指通过 WLAN进行用户设备间直接通信。 优选地,在所述第一 D2D用户设备使用所述 WLAN与预定区域的第二 D2D用户 设备进行通信之后, 还包括: 所述第一 D2D用户设备在所述运营商网络侧的控制下切 换至运营商网络;所述切换后的第一 D2D用户设备在所述运营商网络中与所述一个或 多个 D2D用户设备进行通信。 优选地, 所述预定区域包括: 满足 D2D发现的区域或满足 D2D通信的区域。 根据本发明的又一方面, 提供了一种 D2D通信方法, 包括: 运营商网络侧接收第 一 D2D用户设备发送的无线局域网 WLAN通信请求; 或所述运营商网络侧在预定区 域发现所述第一 D2D用户设备和一个或多个第二 D2D用户设备, 其中, 所述 WLAN 通信请求用于请求该第一 D2D用户设备与该第一 D2D用户设备在所述预定区域发现 的一个或多个第二 D2D用户设备进行设备间通信; 所述运营商网络侧向第一 D2D用 户设备发送信令, 通知所述第一 D2D用户设备使用无线局域网 (WLAN)与所述一个 或多个 D2D用户设备进行直接通信。 优选地, 所述 WLAN通信请求包括以下至少之一: 第二 D2D用户设备的标识、 应用标识、 WLAN通信标识。 优选地, 在所述运营商网络侧向第一 D2D用户设备发送信令之前, 还包括: 所述 运营商网络侧确定所述第一 D2D用户设备和所述一个或多个第二 D2D用户设备满足 WLAN通信的条件。 优选地, 所述信令还包括: WLAN通信指示信息, 其中, 所述 WLAN通信指示 信息包括: 参与 WLAN通信的 D2D用户设备标识和 /或 WLAN通信的参数。 优选地, 在所述运营商网络侧向第一 D2D用户设备发送信令之后, 还包括: 在判 断出满足预设的从所述 WLAN切换至运营商网络的条件时,所述运营商网络侧控制第 一 D2D用户设备和所述一个或多个第二 D2D用户设备切换至所述运营商网络进行通 信; 在判断出满足预设的从所述运营商网络切换至所述 WLAN的条件时,所述运营商 网络侧控制第一 D2D 用户设备和所述一个或多个第二 D2D 用户设备切换至所述 WLAN进行直接通信。 优选地, 所述第一条件包括以下至少之一: 运营商策略、 网络 负载、 D2D通信设备间距离; 所述第二条件包括以下至少之一: 运营商策略、 网络负 载、 D2D通信设备间距离。 根据本发明的另一方面, 提供了一种 D2D通信装置, 应用于 D2D用户设备, 包 括: 第一接收模块, 设置为接收运营商网络侧的信令, 其中, 所述信令用于通知所述 用户设备使用无线局域网 (WLAN) 进行设备间通信; 第一通信模块, 设置为使用所 述 WLAN与预定区域的一个或多个第二 D2D用户设备进行直接通信。 优选地, 上述装置还包括: 第一发现模块, 设置为在所述预定区域发现所述一个 或多个第二 D2D用户设备; 发送模块, 设置为向所述运营商网络侧发送 WLAN通信 请求。 优选地, 上述装置还包括: 切换模块, 设置为在所述运营商网络侧的控制下切换 至运营商网络; 第二通信模块, 设置为在所述运营商网络中与所述一个或多个 D2D用 户设备进行通信。 根据本发明的再一方面,提供了一种 D2D通信装置,应用于运营商网络侧,包括: 第三接收模块, 设置为接收第一 D2D用户设备发送的无线局域网 WLAN通信请求, 其中,所述 WLAN通信请求用于请求该第一 D2D用户设备与该第一 D2D用户设备在 预定区域发现的一个或多个第二 D2D用户设备进行设备间通信; 或第二发现模块, 设 置为在所述预定区域发现所述第一 D2D用户设备和一个或多个第二 D2D用户设备; 发送模块, 设置为向第一 D2D用户设备发送信令, 通知所述第一 D2D用户设备使用 WLAN与所述一个或多个 D2D用户设备进行直接通信。 优选地, 上述装置还包括: 确定模块, 设置为确定所述第一 D2D用户设备和所述 一个或多个第二 D2D用户设备满足 WLAN通信的条件。 优选地, 上述装置还包括: 第一控制模块, 设置为在判断出满足预设的从 WLAN 切换至运营商网络的条件时, 控制第一 D2D用户设备和所述一个或多个第二 D2D用 户设备切换至所述运营商网络进行通信; 第二控制模块, 设置为在判断出满足预设的 从运营商网络的条件时, 控制第一 D2D用户设备和所述一个或多个第二 D2D用户设 备切换至所述 WLAN进行直接通信。。 根据本发明的又一方面, 提供了一种 D2D通信系统, 包括: 上述的 D2D通信装 置 (应用于 D2D用户设备) 和上述的 D2D通信装置 (应用于运营商网络侧)。 通过本发明实施例, 采用第一 D2D用户设备在接收运营商网络侧的第一信令后, 使用 WLAN与预定区域的一个或多个第二 D2D用户设备进行通信,实现了 D2D用户 设备之间采用 WLAN进行通信, 解决了相关技术中 D2D用户设备通信导致运营商网 络负荷比较大的问题,进而达到了降低 D2D设备对运营商网络的负荷,并提高 WLAN 资源的利用率的效果。 附图说明 此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部分, 本发 明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的不当限定。 在附图 中- 图 1是根据相关技术的网络通信示意图; 图 2是根据相关技术的 D2D通信示意图; 图 3是根据本发明实施例的 D2D通信方法的第一流程图; 图 4是根据本发明实施例的 D2D通信方法的第二流程图; 图 5是根据本发明实施例的 D2D通信装置的第一结构框图; 图 6是根据本发明实施例的 D2D通信装置的优选的第一结构框图; 图 7是根据本发明实施例的 D2D通信装置的第二结构框图; 图 8是根据本发明实施例的 D2D通信装置的优选的第二结构框图; 图 9是根据本发明实施例的 D2D通信系统的结构框图; 图 10是根据本发明优选实施例的 D2D通信方法的流程图一; 图 11是根据本发明优选实施例的 D2D通信方法的流程图二; 图 12是根据本发明优选实施例的 D2D通信方法的流程图三; 图 13是根据本发明优选实施例的 D2D通信方法的流程图四; 图 14是根据本发明优选实施例的 WLAN实现 D2D通信的系统的结构框图;以及 图 15是根据本发明优选实施例的 WLAN实现 D2D通信的用户设备的结构框图。 具体实施方式 在实际通信中, 无线局域网 (Wireless Local Area Network, 简称为 WLAN) 工作 于 2.5GHz或 5GHz非授权频段, 以无线方式构成的局域网。 WLAN利用射频 (Radio Frequency, 简称为 RF) 的技术构成的局域网络, 使得无线局域网络能利用简单的存 取架构让用户透过它, 不受网络布线的限制, 便利的进行数据收发。 在本申请的如下 优选实施方式中, 在 WLAN中也存在设备之间的直接通信, 采用 WLAN的设备间直 接通信来实现 D2D的通信需求。 在如下的优选实施例中,记载了当发现 D2D用户设备位于 WLAN通信范围内时, 确定采用 WLAN实现 D2D通信由哪个网元决定, 以及实现 D2D设备在 WLAN通信 方式和网络通信方式之间的切换,实现了通过 WLAN实现 D2D用户设备之间的通信, 从而解决了相关技术中 D2D之间通信导致运营商网络侧负荷比较大的问题。 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是, 在不冲突的 情况下, 本申请中的实施例及实施例中的特征可以相互组合。 本优选实施例提供了一种 D2D通信方法, 图 3是根据本发明实施例的 D2D通信 方法的第一流程图, 如图 3所示, 该方法包括如下步骤 S302至步骤 S304。 步骤 S302: 第一 D2D用户设备接收运营商网络侧的信令, 其中, 该信令用于通 知该第一 D2D用户设备使用 WLAN进行设备间通信。 步骤 S304: 第一 D2D用户设备使用 WLAN与预定区域的一个或多个第二 D2D 用户设备进行直接通信。 通过上述步骤, 第一 D2D用户设备在接收运营商网络侧的信令后, 使用 WLAN 与预定区域的一个或多个第二 D2D用户设备进行直接通信, 实现了 D2D用户设备之 间采用 WLAN进行直接通信,降低了 D2D设备对运营商网络的负荷,并提高了 WLAN 资源的利用率。 优选地, 在实际通信过程中, 第一 D2D用户设备接收到该信令之后, 也可以根据 自身需要或系统配置, 不使用 WLAN与预定区域的一个或多个第二 D2D用户设备进 行直接通信。 比较优的, 该第一 D2D用户设备可以向运营商网络侧反馈一个消息, 表 明该第一 D2D不使用 WLAN进行直接通信。 在实施时, 一个或多个 D2D用户设备可以是被第一 D2D用户设备发现, 或者被 运营商网络侧发现的。 方式一: 当第一 D2D设备在预定区域发现该一个或多个第二 D2D用户设备, 该 第一 D2D设备向运营商网络侧发送 WLAN通信请求, 然后运营商网络侧向第一 D2D 用户设备发送信令。 方式二: 当第一 D2D用户设备和该一个或多个第二 D2D用户设备被运营商网络 侧在该预定区域发现, 则运营商网络侧向第一 D2D用户设备发送信令。 优选地, 预定区域包括: 满足 D2D发现的区域或满足 D2D通信的区域。 其中, 该满足 D2D发现的区域与该满足 D2D通信的区域可以是不同的区域。 为了提高 WLAN通信请求的可靠性, 该 WLAN通信请求包括以下至少之一: 第 二 D2D用户设备的标识、 应用标识、 WLAN通信标识。 在实施时, 为了提高 D2D用户设备之间通信的可靠性, 还可以在第一信令中携带 WLAN通信指示信息, 其中, 该 WLAN通信指示信息包括: 参与 WLAN通信的 D2D 用户设备标识和 /或 WLAN通信的参数, 其中, 该 WLAN通信是指通过 WLAN进行 用户设备间的直接通信。 作为一个较优的实施方式, 在第一 D2D用户设备使用 WLAN与预定区域的第二 D2D用户设备进行通信之后, 该第一 D2D用户设备在运营商网络侧的控制下切换至 运营商网络; 切换后的第一 D2D用户设备在该运营商网络中与该一个或多个 D2D用 户设备进行通信。 该优选方式实现了 D2D用户设备在 WLAN和运营商网络之间通信 的切换。 优选地, 该预定区域包括: 满足 D2D发现的区域或满足 D2D通信的区域。 本优选实施例提供了一种 D2D通信方法, 图 4是根据本发明实施例的 D2D通信 方法的第一流程图, 如图 4所示, 该方法包括如下步骤 S402至步骤 S404。 步骤 S402: 运营商网络侧接收第一 D2D用户设备发送的无线局域网 WLAN通信 请求; 或运营商网络侧在预定区域发现第一 D2D用户设备和一个或多个第二 D2D用 户设备, 其中, 该 WLAN通信请求用于请求该第一 D2D用户设备与该第一 D2D用户 设备在预定区域发现的一个或多个第二 D2D用户设备进行设备间通信。 步骤 S404: 运营商网络侧向第一 D2D用户设备发送信令, 触发该第一 D2D用户 设备使用 WLAN与该一个或多个 D2D用户设备进行直接通信。 通过上述步骤, 运营商网络侧向第一 D2D用户设备发送信令后, 触发第一 D2D 用户设备通过 WLAN与预定区域的一个或多个第二 D2D用户设备进行直接通信, 实 现了 D2D用户设备之间采用 WLAN进行直接通信,降低了 D2D设备对运营商网络的 负荷, 并提高了 WLAN资源的利用率。 作为一个较优的实施方式, 该 WLAN通信请求包括以下至少之一: 第二 D2D用 户设备的标识、 应用标识、 WLAN通信标识。 为了提高 WLAN通信的可靠性,在步骤 S402之前,运营商网络侧确定该第一 D2D 用户设备和一个或多个第二 D2D用户设备满足 WLAN通信的条件。 为了提高 WLAN通信的可靠性, 该第一信令还携带有 WLAN通信指示信息, 其 中,该 WLAN通信指示信息包括:参与 WLAN通信的 D2D用户设备标识和 /或 WLAN 通信的参数。 在实施时, 在步骤 S404之后, 在判断出满足预设的从 WLAN切换至运营商网络 的第一条件时, 运营商网络侧控制第一 D2D用户设备和一个或多个第二 D2D用户设 备切换至运营商网络进行通信;在判断出满足预设的从运营商网络切换至 WLAN的第 二条件时, 运营商网络侧控制第一 D2D用户设备和一个或多个第二 D2D用户设备切 换至 WLAN进行直接通信。该优选方式实现了 D2D用户设备在 WLAN和运营商网络 之间通信的切换。 优选地, 第一条件包括以下至少之一: 运营商策略、 网络负载、 D2D通信设备间 距离; 第二条件包括以下至少之一: 运营商策略、 网络负载、 D2D通信设备间距离。 需要说明的是, 在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的 计算机系统中执行, 并且, 虽然在流程图中示出了逻辑顺序, 但是在某些情况下, 可 以以不同于此处的顺序执行所示出或描述的步骤。 在另外一个实施例中, 还提供了一种 D2D通信软件, 该软件用于执行上述实施例 及优选实施例中描述的技术方案。 在另外一个实施例中, 还提供了一种存储介质, 该存储介质中存储有上述 D2D通 信软件, 该存储介质包括但不限于: 光盘、 软盘、 硬盘、 可擦写存储器等。 本发明实施例还提供了一种 D2D通信装置, 应用于 D2D用户设备, 该 D2D通信 装置可以用于实现上述 D2D通信方法及优选实施方式,已经进行过说明的,不再赘述, 下面对该 D2D通信装置中涉及到的模块进行说明。 如以下所使用的, 术语"模块"可以 实现预定功能的软件和 /或硬件的组合。尽管以下实施例所描述的系统和方法较佳地以 软件来实现, 但是硬件, 或者软件和硬件的组合的实现也是可能并被构想的。 图 5是根据本发明实施例的 D2D通信装置的第一结构框图, 如图 5所示, 该装置 包括: 第一接收模块 52, 第一通信模块 54, 下面对上述结构进行详细描述。 第一接收模块 52, 设置为接收运营商网络侧的第一信令, 其中, 第一信令用于通 知该 D2D用户设备使用 WLAN进行设备间通信; 第一通信模块 54, 连接至第一接收 模块 52, 设置为使用 WLAN与预定区域的一个或多个第二 D2D用户设备进行直接通 信。 图 6是根据本发明实施例的 D2D通信装置的优选的第一结构框图, 如图 6所示, 该装置还包括: 第一发现模块 62, 发送模块 64, 切换模块 66, 第二通信模块 68, 下 面对上述结构进行详细描述。 优选地, 上述装置还包括: 第一发现模块 62, 设置为在该预定区域发现一个或多 个第二 D2D用户设备; 发送模块 64, 连接至第一发现模块 62, 设置为向该运营商网 络侧发送 WLAN通信请求。 优选地, 上述装置还包括: 切换模块 66, 设置为在运营商网络侧的控制下切换至 运营商网络; 第二通信模块 68, 连接至切换模块 66, 设置为在运营商网络中与一个或 多个 D2D用户设备进行通信。 在另外一个实施例中, 还提供了一种 D2D通信软件, 该软件用于执行上述实施例 及优选实施例中描述的技术方案。 在另外一个实施例中, 还提供了一种存储介质, 该存储介质中存储有上述 D2D通 信软件, 该存储介质包括但不限于: 光盘、 软盘、 硬盘、 可擦写存储器等。 本发明实施例还提供了一种 D2D通信装置, 应用于运营商网络侧, 该 D2D通信 装置可以用于实现上述 D2D通信方法及优选实施方式,已经进行过说明的,不再赘述, 下面对该 D2D通信装置中涉及到的模块进行说明。 如以下所使用的, 术语"模块"可以 实现预定功能的软件和 /或硬件的组合。尽管以下实施例所描述的系统和方法较佳地以 软件来实现, 但是硬件, 或者软件和硬件的组合的实现也是可能并被构想的。 图 7是根据本发明实施例的 D2D通信装置的第二结构框图, 如图 7所示, 该装置 包括: 第三接收模块 72, 第二发现模块 74, 发送模块 76, 下面对上述结构进行详细 说明。 第三接收模块 72, 设置为接收第一 D2D用户设备发送的无线局域网 WLAN通信 请求, 其中, 该 WLAN通信请求用于请求该第一 D2D用户设备与该第一 D2D用户设 备在预定区域发现的一个或多个第二 D2D用户设备进行设备间通信;或第二发现模块 74, 设置为在预定区域发现第一 D2D用户设备和一个或多个第二 D2D用户设备; 发 送模块 76, 连接至第三接收模块 72和第二发现模块 74, 设置为向第一 D2D用户设备 发送第一信令,通知第一 D2D用户设备使用 WLAN与一个或多个 D2D用户设备进行 直接通信。 图 8是根据本发明实施例的 D2D通信装置的优选的第二结构框图, 如图 8所示, 该装置还包括: 确定模块 82, 第一控制模块 84, 第二控制模块 86, 下面对上述结构 进行详细描述。 优选地, 上述装置还包括: 确定模块 82, 连接至第一发送模块 76, 设置为确定第 一 D2D用户设备和一个或多个第二 D2D用户设备满足 WLAN通信的条件。 优选地,上述装置还包括:第一控制模块 84,设置为在判断出满足预设的从 WLAN 切换至运营商网络的第一条件时, 控制第一 D2D用户设备和一个或多个第二 D2D用 户设备切换至运营商网络进行通信; 第二控制模块 86, 设置为在判断出满足预设的从运营商网络的第二条件时, 控制 第一 D2D用户设备和一个或多个第二 D2D用户设备切换至 WLAN进行直接通信。。 本优选实施例还提供了一种 D2D通信系统, 图 9是根据本发明实施例的 D2D通 信系统的结构框图, 如图 9所示, 该系统包括 D2D通信装置(应用于 D2D用户设备) 2J¾ D2D通信装置 (应用于运营商网络侧) ^ 其中, 该 D2D通信装置 (应用于 D2D 用户设备) 2_的结构如图 5或 6所示, D2D通信装置 (应用于运营商网络侧) £的结 构如图 7或 8所示, 在此不再赘述。 下面将结合优选实施例进行说明, 以下优选实施例结合了上述实施例及优选实施 方式。 优选实施例一 本优选实施例提供了一种 WLAN用于 D2D通信的方法该方法包括:网络侧或 D2D 用户设备发现邻近区域中的其他 D2D用户设备; 网络侧通知或 D2D用户设备请求采 用 WLAN实现 D2D通信; 网络侧确定 D2D用户设备在 WLAN通信和网络通信两种 方式之间的切换。 通过本发明, 能够实现 D2D用户设备采用 WLAN进行通信。 通过本优选实施例的技术方案, 可以实现降低网络负载, 减少 D2D通信对网络的 依赖的效果。 优选实施例二 本优选实施例提供了一种 WLAN用于 D2D通信的方法, 图 9是根据本发明优选 实施例的 D2D通信方法的流程图一, 如图 10所示, 该方法包括如下步骤 S902至步骤 S908 o 步骤 S902: 在邻近区域中发现 D2D用户设备。 优选地, 该邻近区域为满足事先设定规则的区域, 即在该区域中可以发现 D2D用 户设备。 在本优选实施例中, D2D发现的邻近区域和 D2D通信的邻近区域可以不同, 可以分别定义。 本优选实施例中的发现可以通过网络侧设备和 /或 D2D用户设备进行, 网络侧设 备或 D2D用户设备在特定的时间段内搜索邻近区域的 D2D用户设备, 特定时间段是 指为 D2D发现而设定的一段时间, 在此时间段内, D2D用户设备在固定的资源上发 送信号, 相应的, 网络侧设备和 /或其他 D2D用户设备在固定资源上搜索上述信号; 上述网络侧设备是指 eNB ( evolved NodeB)需要说明的是, 发现过程需要在授权频段 上进行, 即不是通过 WLAN的现有发现方式。 在本优选实施例中的 D2D用户设备是指: 具有 D2D发现和通信能力, 已经签约 使用 D2D功能的 D2D用户设备。需要说明的是,本申请中的 D2D用户设备具有 WLAN 通信功能。 在本优选实施例中, 如果网络侧设备在邻近区域中发现 D2D用户设备, 网络侧可 以向邻近区域内的 D2D用户设备发送通知消息; 一般, 签约了 D2D且开启了 D2D发 现功能的用户设备可以收到上述通知消息。 在本优选实施例中, 如果用户设备在邻近区域中发现其他 D2D用户设备, 用户设 备可以向网络侧发送指示信息, 以告知所发现的 D2D用户设备。 步骤 S904: D2D用户设备间采用 WLAN通信。 本优选实施例中, 可以采用网络侧通知或 D2D用户设备请求进行 WLAN通信; 网络侧的通知包括通信双方或多方的标识, WLAN 通信参数等;其中标识可以是 UE的固有标识, 如 IMSI, MSISDN, IMEI等, 或 UE的代号, 如张三的 IPhone-4。 该 WLAN通信参数包括 WLAN通信标识, WLAN通信资源, WLAN信号强度, D2D用 户设备之间的距离等, 其中 WLAN通信标识用于指示利用 WLAN进行通信。 优选地, 网络侧根据用户设备间的距离和用户设备能力判断是否可以进行 WLAN 通信; 如果用户设备间距离在 WLAN通信范围之内, 且具有 WLAN通信能力, 则可 以进行 WLAN通信, 否则不能进行 WLAN通信; 作为一个较优的实施方式: D2D用户设备请求包括通信对方的标识, WLAN通信 指示等; 网络侧确定通信双方或多方是否可以 WLAN通信, 如果是, 则网络侧向 D2D 用户设备发送确认响应和 WLAN通信参数, 否则, 网络侧向 D2D用户设备发送拒绝 响应和拒绝原因。 在本优选实施例中, WLAN通信由 D2D设备自主进行, 即网络侧不控制 WLAN 通信的资源; 对于安全和计费功能, 可以根据运营商的本地策略进行。 优选地, WLAN通信中, 用户面数据通过用户设备直接进行, 控制面信令通过网 络或 D2D用户设备完成, 以实现对 WLAN通信的管控。 在本优选实施例中, 如果 D2D用户设备间通信结束, 则 D2D用户设备断开连接, 释放相应的通信资源。 步骤 S906: 判断是否继续通过 WLAN通信, 如果是, 执行步骤 S904, 否则执行 步骤 S908。 作为一个较优的实施方式, 该判断可以通过用户设备或网络侧设备进行, 如用户 设备检测到通信信号质量低于 WLAN门限, 则向网络侧发送指示, 网络侧根据指示确 定是否采用网络继续通信; 或网络侧设备检测到用户设备超出了 D2D的通信范围(邻 近区域), 则网络侧确定是否切换到通过网络继续通信, 并向用户设备发送指示信息。 步骤 S908: D2D用户设备通过网络进行通信, 流程结束。 在本优选实施例中, D2D用户设备无法继续通过 WLAN通信, 网络侧将用户设 备切换到通过网络继续通信; 优选地, 如果用户设备位于无网络覆盖的区域, 如公共安全的场景, 则用户设备 无法通过网络继续通信, 此时通信中断。 当网络通信结束, 用户设备向网络侧发送结 束通信请求, 网络侧断开连接并释放通信资源。 优选实施例三 本优选实施例提供了一种 WLAN用于 D2D通信的方法,本优选实施例的场景为: 网络侧发现 D2D用户设备并指示采用 WLAN通信,图 11是根据本发明优选实施例的 D2D通信方法的流程图二, 如图 11所示, 该方法包括如下步骤 S1002至步骤 S1010。 步骤 S1002: 网络侧在邻近区域发现两个 D2D设备。 在本优选实施例中, 邻近区域为针对 D2D发现规定的邻近区域。 优选地, 两个 D2D用户设备包括两个及两个以上的 D2D用户设备。 步骤 S1004: 网络侧向 D2D用户设备发送采用 WLAN通信的指示信息。 在本优选实施例中, WLAN通信需要满足 2个条件: 条件 1 : 用户设备具有 WLAN通信的能力。 条件 2: 用户设备间的距离位于 WLAN通信范围之内。 其中网络侧通过查询签约 数据判断用户设备是否具有 WLAN通信能力, 如, 网络侧向 HSS/HLR查询用户设备 的签约数据。 在本优选实施例中, 如果网络侧确定 UE满足 WLAN通信的条件, 则网络侧向 D2D用户设备发送 WLAN通信指示信息。 优选地, WLAN通信的指示信息包括:参与 WLAN通信的用户设备标识, WLAN 通信的参数。 步骤 S 1006: D2D用户设备利用 WLAN进行通信。 优选地, D2D用户设备利用收到的 WLAN通信参数进行 WLAN通信。 为了实现 WLAN通信的安全, 计费等可以采用现有 WLAN相关流程进行, 网络 侧对 D2D设备间的 WLAN通信进行监控,以保证通信的服务质量(Quality of Service, 简称为 QoS)。 步骤 S1008:判断是否继续通过 WLAN通信,如果判断结果为是,执行步骤 S1006, 否则执行步骤 S1010。 需要说明的是, 本步骤的操作与步骤 S908相同, 在此不再赘述。 步骤 S1010: D2D用户设备通过网络继续通信, 流程结束。 需要说明的是, 本步骤与步骤 S910相同, 在此不再赘述。 优选实施例四 本优选实施例提供了一种 WLAN用于 D2D通信的方法,本优选实施例的场景为: 用户设备发现 D2D用户设备并请求 WLAN通信, 图 12是根据本发明优选实施例的 D2D通信方法的流程图三, 如图 12所示, 该方法包括如下步骤 S1102至步骤 S1116。 步骤 S1102: D2D用户设备在邻近区域发现其他 D2D用户设备。 在本优选实施例中, D2D用户设备开启发现功能, 周期性的检测邻近区域的 D2D 用户设备; 其中检测周期为事先设定, 在上述周期内, D2D用户设备在预定的资源上 发送信号, 相应的, D2D用户设备在发现周期内检测其他 D2D用户设备的信号。 步骤 S1104: D2D用户设备向网络侧发送采用 WLAN通信的请求。 在本步骤中, D2D用户设备上的应用发起请求, 触发 D2D用户设备向网络侧发 送 WLAN通信请求, 其中, WLAN通信请求包括: 对方 D2D用户设备的标识, 应用 标识, WLAN通信标识等。 步骤 S1106: 网络侧判断是否可以进行 WLAN通信, 如果判断结果为是, 转向步 骤 S1108, 否则执行步骤 S1114。 在本优选实施例中, WLAN通信需要满足 2个条件: 条件 1 : 用户设备具有 WLAN通信的能力。 条件 2: 用户设备间的距离位于 WLAN通信范围之内。 其中网络侧通过查询签约 数据判断用户设备是否具有 WLAN通信能力, 如, 网络侧向 HSS/HLR查询用户设备 的签约数据。 优选地, 如果网络侧确定满足 WLAN通信的条件, 则网络侧向 D2D用户设备发 送 WLAN通信指示信息。 步骤 S1108: 网络侧发送响应信息和 WLAN通信参数。 其中, 该响应信息指示网络侧接受 WLAN通信请求。 步骤 S1110: D2D用户设备通过 WLAN进行通信。 需要说明的是, 本步骤与步骤 S1006相同, 在此不再赘述。 步骤 S1112,判断是否继续通过 WLAN通信,如果判断结果为是,转向步骤 S1110, 否则执行步骤 S1116。 在本步骤中, 网络侧对 D2D通信进行监控, 以保证通信质量。 本步骤与步骤 S908相同, 在此不再赘述。 步骤 S1114: 网络侧发送拒绝响应信息, 指示通过网络进行通信。 优选地, 该拒绝信息包含拒绝原因, 即无法继续通过 WLAN通信; 优选地, 网络侧判断可以继续通过网络通信, 则发送指示信息, 否则网络侧指示 通信中断及原因。 步骤 S1116: 开始通过网络通信, 直到通信结束。 在本步骤中, D2D用户设备释放 WLAN通信资源, 在网络侧分配的资源上继续 通信。 优选实施例五 本优选实施例提供了一种 WLAN用于 D2D通信的方法,本优选实施例的场景为: 网络侧发现 D2D用户设备, D2D用户设备请求 WLAN通信, 图 13是根据本发明优 选实施例的 D2D通信方法的流程图四, 如图 13所示, 该方法包括如下步骤 S1202至 步骤 S1218。 步骤 S1202: 网络侧在邻近区域中发现两个 D2D用户设备。 需呀说明的是, 本步骤与步骤 S1002相同, 在此不再赘述。 步骤 S1204: 网络侧向邻近区域中的 D2D用户设备发送通知信息。 该通知消息包括: 当前邻近区域中签约 D2D用户设备标识, 邻近区域 D2D用户 设备上的 D2D应用标识, 等等; 如果有用户设备进入或离开邻近区域, 网络侧更新通 知消息。 步骤 S1206: D2D用户设备向网络侧请求 WLAN通信。 在本步骤中, D2D用户设备收到通知消息, 发现邻近区域有自己感兴趣的应用, 触发 D2D用户设备向网络侧发送 WLAN通信请求信息, 其中包括: 对方 D2D用户设 备的标识, 应用标识, WLAN通信标识等。 步骤 S1208: 网络侧判断是否可以进行 WLAN通信, 如果判断结果为是, 执行步 骤 S1210, 否则执行步骤 S1216。 本步骤与步骤 S908相同, 在此不再赘述。 步骤 S1210: 网络侧发送响应信息和 WLAN通信参数。 本步骤与步骤 S908相同, 在此不再赘述。 步骤 S1212, 用户设备通过 WLAN进行通信。 本步骤与步骤 S1108相同, 在此不再赘述。 步骤 S1214,判断是否继续通过 WLAN通信,如果判断结果为是,执行步骤 S1212, 否则执行步骤 S1218。 如果用户设备不能直接 D2D通信, 也不能通过中间节点通信, 网络侧将通信切换 到网络通信方式。 步骤 S1216: 网络侧发送拒绝响应信息, 指示通过网络进行通信。 本步骤与步骤 S1108相同, 在此不再赘述。 步骤 S1218, 开始通过运营商网络通信, 直到通信结束。 本步骤与步骤 S1116相同, 在此不再赘述。 优选实施例六 本优选实施例提供了一种 WLAN实现 D2D通信的系统,图 13是根据本发明优选 实施例的 WLAN实现 D2D通信的系统结构框图, 如图 14所示, 该系统包括: 用户设 备 132 (设置为执行上述优选实施例中的 D2D用户设备的功能) 和网络侧 134 (设置 为执行上述优选实施例中的运营商网络侧的功能), 下面对上述结构进行详细描述。 网络侧 134, 包括 eNB, MME, 设置为发现邻近区域的 D2D用户设备, 指示 D2D 用户设备采用 WLAN进行通信; 用户设备 132, 设置为发现邻近区域的 D2D用户设 备, 与邻近区域 D2D用户设备进行 WLAN通信。 优选地, 网络侧 134, 还设置为判断是否可以采用 WLAN通信, 以及向邻近区域 的 D2D用户设备发送通知消息, 以及在 WLAN和网络之间切换通信方式, 以及根据 用户设备请求开始或结束 WLAN通信。 优选地, 用户设备 132, 还设置为接收邻近区域的通知消息, 请求邻近区域的 WLAN通信。 优选实施例七 本发明还提供了一种用户设备,图 15是根据本发明优选实施例的 WLAN实现 D2D 通信的用户设备结构框图, 如图 14所示, 该用户设备包括: 发现单元 1322 (设置为 执行上述实施例中第一发现模块 62的功能), 通信单元 1324 (设置为执行上述实施例 中发现模块 64和第一通信模块 54的功能), 下面对上述结构进行详细说明。 发现单元 1322, 设置为发现邻近区域的其他 D2D用户设备; 通信单元 1324, 连 接至发现单元 1322, 设置为向网络侧发送 WLAN通信请求, 还设置为和邻近区域的 D2D用户设备进行 WLAN通信。 通过上述实施例,提供了一种 D2D通信方法、装置及系统,实现了需要说明的是, 这些技术效果并不是上述所有的实施方式所具有的, 有些技术效果是某些优选实施方 式才能取得的。 显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可以用通用 的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布在多个计算装置所 组成的网络上, 可选地, 它们可以用计算装置可执行的程序代码来实现, 从而可以将 它们存储在存储装置中由计算装置来执行,或者将它们分别制作成各个集成电路模块, 或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。 这样, 本发明不限 制于任何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本领域的技 术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内, 所作的 任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。

Claims

权 利 要 求 书
1. 一种设备到设备 D2D通信方法, 包括:
第一 D2D用户设备接收运营商网络侧的信令,其中,所述信令用于通知所 述第一 D2D用户设备使用无线局域网 WLAN进行设备间通信;
所述第一 D2D 用户设备使用所述 WLAN 与预定区域的一个或多个第二 D2D用户设备进行直接通信。
2. 根据权利要求 1所述的方法,其中,在第一 D2D用户设备接收运营商网络侧的 信令之前, 还包括:
所述第一 D2D设备在所述预定区域发现所述一个或多个第二 D2D用户设 备; 所述第一 D2D设备向所述运营商网络侧发送 WLAN通信请求; 或
所述第一 D2D用户设备和所述一个或多个第二 D2D用户设备被所述运营 商网络侧在所述预定区域发现。
3. 根据权利要求 2所述的方法, 其中,
所述 WLAN通信请求包括以下至少之一: 第二 D2D用户设备的标识、 应 用标识、 WLAN通信标识。
4. 根据权利要求 1所述的方法, 其中,
所述信令还包括: WLAN通信指示信息, 其中, 所述 WLAN通信指示信 息包括: 参与 WLAN通信的 D2D用户设备标识和 /或 WLAN通信的参数, 其 中, 所述 WLAN通信是指通过 WLAN进行用户设备间的直接通信。
5. 根据权利要求 1至 4中任一项所述的方法,其中,在所述第一 D2D用户设备使 用所述 WLAN与预定区域的第二 D2D用户设备进行通信之后, 还包括:
所述第一 D2D用户设备在所述运营商网络侧的控制下切换至运营商网络; 所述切换后的第一 D2D 用户设备在所述运营商网络中与所述一个或多个 D2D用户设备进行通信。
6. 根据权利要求 1至 4中任一项所述的方法,其中,所述预定区域包括:满足 D2D 发现的区域或满足 D2D通信的区域。
7. 一种设备到设备 D2D通信方法, 包括:
运营商网络侧接收第一 D2D用户设备发送的无线局域网 WLAN通信请求; 或所述运营商网络侧在预定区域发现所述第一 D2D 用户设备和一个或多个第 二 D2D用户设备, 其中, 所述 WLAN通信请求用于请求该第一 D2D用户设备 与该第一 D2D用户设备在所述预定区域发现的一个或多个第二 D2D用户设备 进行设备间通信;
所述运营商网络侧向第一 D2D用户设备发送信令, 通知所述第一 D2D用 户设备使用无线局域网 WLAN与所述一个或多个 D2D用户设备进行直接通信。
8. 根据权利要求 7所述的方法, 其中,
所述 WLAN通信请求包括以下至少之一: 第二 D2D用户设备的标识、 应 用标识、 WLAN通信标识。
9. 根据权利要求 7所述的方法,其中,在所述运营商网络侧向第一 D2D用户设备 发送信令之前, 还包括:
所述运营商网络侧确定所述第一 D2D 用户设备和所述一个或多个第二 D2D用户设备满足 WLAN通信的条件。
10. 根据权利要求 7所述的方法, 其中,
所述信令还包括: WLAN通信指示信息, 其中, 所述 WLAN通信指示信 息包括: 参与 WLAN通信的 D2D用户设备标识和 /或 WLAN通信的参数。
11. 根据权利要求 7至 10中任一项所述的方法,其中,在所述运营商网络侧向第一 D2D用户设备发送信令之后, 还包括: 在判断出满足预设的从所述 WLAN切换至运营商网络的第一条件时,所述 运营商网络侧控制第一 D2D用户设备和所述一个或多个第二 D2D用户设备切 换至所述运营商网络进行通信;
在判断出满足预设的从所述运营商网络切换至所述 WLAN的第二条件时, 所述运营商网络侧控制第一 D2D用户设备和所述一个或多个第二 D2D用户设 备切换至所述 WLAN进行直接通信。
12. 根据权利要求 11所述的方法, 其中, 所述第一条件包括以下至少之一: 运营商 策略、 网络负载、 D2D通信设备间距离; 所述第二条件包括以下至少之一: 所 述运营商策略、 所述网络负载、 所述 D2D通信设备间距离。
13. 一种设备到设备 D2D通信装置, 应用于 D2D用户设备, 包括: 第一接收模块, 设置为接收运营商网络侧的信令, 其中, 所述信令用于通 知所述 D2D用户设备使用无线局域网 WLAN进行设备间通信;
第一通信模块,设置为使用所述 WLAN与预定区域的一个或多个第二 D2D 用户设备进行直接通信。
14. 根据权利要求 13所述的装置, 其中, 还包括:
第一发现模块,设置为在所述预定区域发现所述一个或多个第二 D2D用户 设备; 发送模块, 设置为向所述运营商网络侧发送 WLAN通信请求。
15. 根据权利要求 13或 14所述的装置, 其中, 还包括: 切换模块, 设置为在所述运营商网络侧的控制下切换至运营商网络; 第二通信模块,设置为在所述运营商网络中与所述一个或多个 D2D用户设 备进行通信。
16. 一种设备到设备 D2D通信装置, 应用于运营商网络侧, 包括:
第三接收模块, 设置为接收第一 D2D用户设备发送的无线局域网 WLAN 通信请求, 其中, 所述 WLAN通信请求用于请求该第一 D2D用户设备与该第 一 D2D用户设备在预定区域发现的一个或多个第二 D2D用户设备进行设备间 通信; 或第二发现模块,设置为在所述预定区域发现所述第一 D2D用户设备和 一个或多个第二 D2D用户设备;
发送模块, 设置为向第一 D2D用户设备发送信令, 通知所述第一 D2D用 户设备使用 WLAN与所述一个或多个 D2D用户设备进行直接通信。
17. 根据权利要求 16所述的装置, 其中, 还包括:
确定模块,设置为确定所述第一 D2D用户设备和所述一个或多个第二 D2D 用户设备满足 WLAN通信的条件。
18. 根据权利要求 16或 17所述的装置, 其中, 还包括:
第一控制模块,设置为在判断出满足预设的从 WLAN切换至运营商网络的 第一条件时, 控制第一 D2D用户设备和所述一个或多个第二 D2D用户设备切 换至所述运营商网络进行通信; 第二控制模块, 设置为在判断出满足预设的从运营商网络的第二条件时, 控制第一 D2D 用户设备和所述一个或多个第二 D2D 用户设备切换至所述 WL AN进行直接通信。。 一种设备到设备 D2D通信系统,包括: 根据权利要求 13至 15中任一项所述的 D2D通信装置和根据权利要求 16至 18中任一项所述的 D2D通信装置。
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