WO2015149463A1 - D2d发现的处理方法及装置 - Google Patents

D2d发现的处理方法及装置 Download PDF

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Publication number
WO2015149463A1
WO2015149463A1 PCT/CN2014/084029 CN2014084029W WO2015149463A1 WO 2015149463 A1 WO2015149463 A1 WO 2015149463A1 CN 2014084029 W CN2014084029 W CN 2014084029W WO 2015149463 A1 WO2015149463 A1 WO 2015149463A1
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WO
WIPO (PCT)
Prior art keywords
identifier
terminal
broadcast
mode
broadcaster
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PCT/CN2014/084029
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English (en)
French (fr)
Inventor
朱进国
梁爽
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US15/301,456 priority Critical patent/US10104532B2/en
Priority to EP14888241.8A priority patent/EP3128773B1/en
Publication of WO2015149463A1 publication Critical patent/WO2015149463A1/zh

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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
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the present invention relates to the field of communications, and in particular to a device to device (D2D) discovery method and apparatus.
  • D2D device to device
  • BACKGROUND OF THE INVENTION Terminals in the vicinity area can bring many benefits to the terminal by using D2D direct communication, such as higher speed, lower delay, and lower power consumption, and also greatly improve the wireless resource efficiency of the operator, D2D
  • the Relay mode facilitates operators to improve wireless coverage; for applications, the use of proximity information in the D2D communication process can lead to more attractive new services.
  • the Public Safety system can also use D2D technology to enable communication between terminals without wireless coverage.
  • 1 is a schematic diagram of a D2D network system architecture related to 3GPP according to the related art. As shown in FIG.
  • Terminal User equipment (User Equipment, UE for short), support terminal and terminal
  • the interface PC5 sends and receives signals, and in the case of coverage, supports access to the base station through the radio, and accesses the core network through the S1 interface, and the terminal communicates with the short-range communication server through the user interface PC3.
  • Base station In the evolved system, it is also called an evolved base station (Evolved NodeB, eB for short). It mainly provides radio resources for the access of the terminal, and communicates with the core network through the S1 interface.
  • the core network includes the mobility management unit and gateway.
  • the mobile management unit is a control plane entity responsible for temporarily storing user data, and is responsible for authentication, mobility management, and subscription checking.
  • the gateway is a user plane entity, which is responsible for allocating an IP address to the terminal and forwarding the uplink and downlink data packets of the terminal. And billing and so on.
  • a short-range communication server which is located outside the core network, and the terminal communicates with the server through the user plane interface PC3.
  • the main functions of the server include D2D service authorization, allocation of temporary identifiers for applications requested by the terminal for terminal broadcast, assistance with D2D discovery, and billing.
  • the authorization information comes from the home subscription server.
  • the home subscription server is located in the home network. The main function is to provide subscription information and authentication information for users and applications.
  • the operator assigns a unique application identifier to the application on the terminal, for example, the identifier includes a public land mobile network (Public Land Mobile Network, PLMN for short) information and application identification information, and the PLMN includes the country (the business is authorized and the operator The control and charging can be performed.
  • the terminal generally does not allow to directly broadcast its own application identifier, but needs to obtain a temporary identification code uniquely corresponding to the application identifier from the proximity server, and then broadcast the code.
  • D2D discovery of the two terminals Two processes are included: UE A broadcast, UE B listen. If the code A monitored by UE B already knows, terminal B finds that terminal A is nearby.
  • FIG. 2 is related according to A schematic diagram of a broadcast request process of the technology, as shown in FIG. 2, the process includes the following steps: Step S202, terminal A The application identifier is obtained from the operator, and the application identifier is only allowed to be used by the UE A.
  • step S204 if the terminal A wants to broadcast itself by using the wireless resource of the operator, so that others can discover themselves, the terminal establishes a connection with the network.
  • the distance sending server sends a broadcast request message, where the request includes an indication of an application identifier, a terminal identifier, and announcing that are desired to be broadcasted.
  • the terminal A generates an identifier of the proximity server through the PLMN identifier that belongs to the terminal, and obtains the attribution through the DNS lookup.
  • the short-distance server IP address is the International Mobile Subscriber Identification Number (IMSI) or the mobile subscriber ISDN number (Mobile Subscriber ISDN/PSTN number, MSISDN for short).
  • IMSI International Mobile Subscriber Identification Number
  • MSISDN Mobile Subscriber ISDN/PSTN number
  • Step S208 the home server returns the subscription information of the terminal in the subscription response.
  • Step S210 according to the subscription The information belonging to the proximity server determines that the terminal is allowed to perform the D2D service, and the user does sign the application identifier, and the user context is created, and a temporary broadcast identifier code A and a corresponding validity period are allocated for the application identifier sent by the user. Considering that terminal A may roam to the visited network, the home proximity server also needs to notify the temporary identity code A to the proximity server of the visited place.
  • Step S212 the proximity server returns the allocated temporary broadcast identifier code A and the corresponding validity period to Step S214, the terminal A acquires a radio resource.
  • the radio resource corresponding to each PLMN that allows D2D broadcast can be configured for the terminal A in two manners, so that when the UE is in no coverage, or when the base station indicates that the manner is used, the currently registered PLMN can be found.
  • Matching D2D radio resources; mode 2 is that the base station allocates available D2D radio resources to terminal A.
  • Step S216 the terminal A broadcasts the obtained code A on the acquired radio resource.
  • the terminal A sets a timer, and periodically broadcasts during the validity period indicated in step S210. After the validity period expires, the broadcast identifier code A is invalidated, and the terminal A must re-initiate the broadcast request process to reacquire the broadcast identifier code A and the validity period.
  • Step S302 The terminal B obtains the application identifier of the terminal A from an operator or a third party.
  • Terminal B generates the identity of the proximity server through the PLMN identity that it belongs to, and obtains the IP address of the home server through the DNS lookup.
  • the terminal identifier is IMSI or MSISDN.
  • Step S306 After receiving the discovery request, the proximity server requests the home server to send a subscription request, with the user identifier, if there is no user context. Step S308, the home server returns the subscription information of the terminal in the subscription response. Step S310: Create a user context according to the fact that the subscription information belongs to the proximity server and determines that the terminal is allowed to perform the D2D service. In step S312, the home proximity server finds the corresponding temporary broadcast identifier code A according to the terminal A application identifier, and sends a valid period of the identifier code A to the terminal B.
  • the home proximity server of terminal B finds the home proximity server of terminal A according to the terminal application identifier that is brought up, and obtains code A.
  • the terminal B acquires a radio resource.
  • the terminal B configures the radio resource corresponding to each PLMN that the D2D listens to, and the terminal can listen to all the radio resources within the valid value indicated by step 306.
  • Step S316 when the terminal B detects the code A, the terminal A is successfully found to be in the adjacent area. When the validity period expires, the code A is invalidated, and terminal B must re-initiate the process of listening for the request to obtain a new code A and validity period.
  • step S312 may return a mask.
  • the terminal B needs to initiate a matching process to learn the application identifier corresponding to the code.
  • 4 is a schematic diagram of a matching request process according to the related art. As shown in FIG. 4, the process includes the following steps: Step S402: Terminal B listens to code A, and the code A matches a mask, but terminal B does not. Know the code A.
  • Step S404 the terminal B establishes a connection with the network, and sends a matching request to the home proximity server, where the request includes the discovered code A and the terminal identifier of the terminal B.
  • Terminal B generates the identity of the proximity server through the PLMN identity that it belongs to, and obtains the IP address of the home server through the DNS lookup.
  • the terminal identifier is IMSI or MSISDN.
  • Step S406 After receiving the discovery request, the proximity server requests the home server to send a subscription request, with the user identifier, if there is no user context.
  • Step S408 The home server returns the subscription information of the terminal in the subscription response.
  • Step S410 determining that the terminal is allowed to perform D2D service according to the subscription information belonging to the proximity server.
  • the affiliated proximity server obtains the terminal A application identifier according to the code A that is brought up. If the terminal A and the terminal B are not in the same carrier, the home proximity server of the terminal B finds the home proximity server of the terminal A according to the code A of the terminal A that is brought up, and the query obtains the application layer identifier. Step S412, the home proximity server sets the validity period of the code A, and then returns the application identifier and validity period of the terminal A to the UE B, and then the UE B successfully discovers that the terminal A is in the adjacent area. Within this validity period, code A and terminal A application identifiers are matched. At present, D2D discovery only supports one mode, that is, terminal A broadcasts its own code, for example, I am here.
  • a method for processing D2D discovery including: a broadcaster terminal acquiring a radio resource in a D2D discovery process; and the broadcaster terminal transmitting a mode identifier and a broadcast identifier by using the radio resource,
  • the mode identifier is set to indicate whether the terminal corresponding to the broadcast identifier is a broadcaster terminal or a destination terminal that is desired to be discovered.
  • the broadcast identifier includes a temporary identifier that the broadcaster terminal allocated by the network side matches the current application identifier.
  • the broadcast identifier includes an application identifier of the destination terminal.
  • the number of destination terminals is single or multiple.
  • a method for processing D2D discovery including: receiving, by a destination terminal, a mode identifier sent by a broadcaster terminal and a broadcast identifier by using a radio resource, where the mode identifier is set to indicate receiving The terminal corresponding to the broadcast identifier is a broadcaster terminal or a destination terminal that is desired to be discovered; and the destination terminal matches the broadcast identifier according to the mode identifier.
  • the destination terminal determines that the mode identifier is set to indicate whether the terminal corresponding to the broadcast identifier is a broadcaster terminal or a destination terminal that is to be discovered; If the result of the judgment is the destination terminal that is to be discovered, the destination terminal matches its own application identifier with the received broadcast identifier, and sends the mode identifier and the application identifier of the radio resource through the wireless resource when the matching is successful.
  • the matching temporary identifier, the temporary identifier belongs to the broadcast identifier, and the mode identifier is set to indicate that the terminal corresponding to the broadcast identifier is a broadcaster terminal.
  • a processing device for D2D discovery including: an acquiring module, configured to acquire a radio resource in a D2D discovery process; and a sending module, configured to send a mode identifier by using the radio resource, And the broadcast identifier, where the mode identifier is set to indicate whether the terminal corresponding to the broadcast identifier is a broadcaster terminal or a destination terminal that is desired to be discovered.
  • the broadcast identifier includes a temporary identifier that the broadcaster terminal allocated by the network side matches the current application identifier.
  • the broadcast identifier includes an application identifier of the destination terminal.
  • the number of the destination terminals is single or multiple.
  • a processing apparatus for D2D discovery including: a receiving module, configured to receive, by using a wireless resource, a mode identifier sent by a broadcaster terminal, and a broadcast identifier, where the mode identifier setting
  • the matching module is configured to indicate that the terminal corresponding to the broadcast identifier is a broadcaster terminal or a destination terminal that is to be discovered; and the matching module is configured to match the broadcast identifier according to the mode identifier.
  • the matching module includes: a determining unit, configured to determine that the mode identifier is set to indicate whether the terminal corresponding to the broadcast identifier is a broadcaster terminal or a destination terminal; and the matching unit is configured to be a judgment result in the determining unit In the case of the destination terminal, the application identifier of the destination is matched with the received broadcast identifier.
  • the sending unit is configured to send the mode identifier and the application identifier of the radio resource through the wireless resource when the matching unit is successfully matched.
  • the matching temporary identifier, the temporary identifier belongs to the broadcast identifier, and the mode identifier is set to indicate that the terminal corresponding to the broadcast identifier is a broadcaster terminal.
  • the matching module further includes: an obtaining unit, configured to request, when the matching unit is successfully matched, to allocate, to the network side, a temporary identifier that matches the application identifier of the self.
  • the broadcaster terminal obtains the radio resource in the D2D discovery process, and the broadcaster terminal sends the mode identifier and the broadcast identifier by using the radio resource, where the mode identifier is set to indicate that the terminal corresponding to the broadcast identifier is a broadcast.
  • the terminal terminal is still the way of the destination terminal that is desired to be discovered, and solves the problem that the D2D communication mode in the related art is relatively simple and not flexible, and the flexibility and diversity of the D2D communication mode are enhanced, and the user experience is improved.
  • FIG. 1 is a schematic diagram of a D2D network system architecture related to 3GPP according to the related art
  • FIG. 2 is a schematic diagram of a broadcast request process according to the related art
  • 3 is a schematic diagram of a listening request process according to the related art
  • FIG. 4 is a schematic diagram of a matching request process according to the related art
  • FIG. 1 is a schematic diagram of a D2D network system architecture related to 3GPP according to the related art
  • FIG. 2 is a schematic diagram of a broadcast request process according to the related art
  • 3 is a schematic diagram of a listening request process according to the related art
  • FIG. 4 is a schematic diagram of a matching request process according to the related art
  • FIG. 1 is a schematic diagram of a D2D network system architecture related to 3GPP according to the related art
  • FIG. 2 is a schematic diagram of a broadcast request process according to the related art
  • 3 is a schematic diagram of a listening request process according to the related art
  • FIG. 4 is
  • FIG. 5 is a flowchart of a processing method 1 for D2D discovery according to an embodiment of the present invention
  • FIG. 7 is a structural block diagram of a processing device for D2D discovery according to an embodiment of the present invention
  • FIG. 8 is a structural diagram of a processing device 2 for D2D discovery according to an embodiment of the present invention
  • FIG. 9 is a schematic diagram of a discovery process of terminal 2 implementing mode 2 in a case where terminal B has acquired code B according to a preferred embodiment of the present invention
  • FIG. 10 is a case where terminal B has not acquired code B according to a preferred embodiment of the present invention.
  • terminal A implements a schematic diagram of the discovery process of mode 2;
  • FIG. 10 implements a schematic diagram of the discovery process of mode 2;
  • FIG. 10 implements a schematic diagram of the discovery process of mode 2;
  • FIG. 10 implements a schematic diagram of the discovery process of mode 2;
  • FIG. 10 implements a schematic diagram of the discovery process of mode 2;
  • FIG. 11 is a schematic diagram of a user that terminal A wishes to discover with a target of a certain type of application in accordance with a preferred embodiment of the present invention.
  • the D2D discovery herein supports at least two modes. Mode 1 broadcasts its own code for terminal A, such as broadcast "I am here", and other terminals can discover terminal A after receiving it; mode 2 is that terminal A needs to find out whether there are interested targets around, for example, it can broadcast "Who is Where "mode or "terminal B is there?", other terminals can respond after receiving it. Currently, related technologies only support mode 1, and mode 2 is not supported. This paper supports the discovery of Mode 2 and other modes through the expansion of the original scheme. In this embodiment, a processing method for D2D discovery is provided. FIG.
  • Step S502 The broadcaster terminal acquires the radio resource in the D2D discovery process.
  • step S504 the broadcaster terminal sends the mode identifier and the broadcast identifier by using the radio resource, where the mode identifier is set to indicate whether the terminal corresponding to the broadcast identifier is a broadcaster terminal or is desired.
  • the destination terminal of the discovery The broadcaster terminal acquires the radio resource in the D2D discovery process.
  • the mode identifier is added in the broadcast process of the D2D discovery by the broadcaster terminal, so that the receiver can determine, by the mode identifier, whether the broadcast identifier sent by the broadcaster terminal is the broadcaster terminal itself, or
  • the target terminal that it hopes to discover provides a technical basis for the broadcast terminal to actively search for other terminals for D2D discovery, and solves the problem that the D2D communication mode in the related technology is relatively simple and not flexible, and the D2D communication mode is enhanced. Flexibility and diversity enhance the user experience.
  • the broadcast identifier when the mode identifier is set to indicate that the terminal corresponding to the broadcast identifier is a broadcaster terminal, the broadcast identifier may include a temporary identifier that the broadcaster terminal allocated by the network side matches the current application identifier; When the mode identifier is set to indicate that the terminal corresponding to the broadcast identifier is the destination terminal, the broadcast identifier may include an application identifier of the destination terminal.
  • the broadcast identifier when the broadcaster terminal is the UE A and the destination party is the UE B, when the mode identifier sent by the UE A indicates that the broadcast identifier corresponds to itself (identified by the mode 1 herein), the broadcast identifier may include The code A that matches the current application identifier is allocated by the network side; and when the mode identifier sent by the UE A indicates that the broadcast identifier corresponds to the destination terminal (identified by mode 2 herein), the broadcast identifier may include the destination terminal.
  • Application ID Preferably, the number of the destination terminals may be single or multiple.
  • the application identifier of the destination terminal may specify one terminal, or may designate one type of terminal.
  • FIG. 6 is a flowchart of a second processing method for D2D discovery according to an embodiment of the present invention.
  • the method includes the following steps: S602, the destination terminal receives the mode identifier and the broadcast identifier sent by the broadcaster terminal by using the radio resource, where the mode identifier is set to indicate whether the terminal corresponding to the received broadcast identifier is a broadcaster terminal or a destination terminal that is to be discovered; Step S604 The destination terminal matches the broadcast identifier according to the mode identifier.
  • the destination terminal of the receiving side receives the mode identifier sent by the broadcaster terminal during the broadcast process of the D2D discovery, and determines whether the broadcast identifier sent by the broadcaster terminal is the broadcaster terminal itself or not by the mode identifier.
  • the destination terminal that it wants to discover, and then the corresponding matching process according to the judgment result provides a technical basis for the broadcast terminal to actively find other terminals for D2D discovery, and solves the D2D communication mode in the related technology is relatively single and insufficient. Flexible issues enhance the flexibility and diversity of the D2D communication model and enhance the user experience.
  • the manner in which the target terminal matches the broadcast identifier according to the mode identifier may be as follows:
  • the target terminal determining mode identifier is set to indicate whether the terminal corresponding to the broadcast identifier is a broadcaster terminal or a destination terminal that is desired to be found;
  • the result of the judgment is that the terminal corresponding to the broadcast identifier is the destination terminal that is desired to be discovered, and the destination terminal matches its own application identifier with the received broadcast identifier, and the matching is successful.
  • the mode identifier indicates that the terminal corresponding to the broadcast identifier is a broadcaster terminal
  • the temporary identifier is matched with the application identifier of the radio resource.
  • the broadcast identifier may be a temporary identifier of the broadcaster terminal. If the mode identifier indicates that the terminal corresponding to the broadcast identifier is the destination terminal, the broadcast identifier may be the application identifier of the destination party, where the mode identifier indicates that the terminal corresponding to the broadcast identifier is a broadcast.
  • the terminal terminal if the result of the determination is that the terminal corresponding to the broadcast identifier is the broadcaster terminal, it is processed according to the matching process of the related art. For example, when the broadcaster terminal is the UE A and the destination party is the UE B, when the UE B determines that the mode identifier sent by the UE A indicates that the broadcast identifier corresponds to the UE A itself (identified by the mode 1 herein)
  • the UE B processes according to the matching process of the related art, that is, the discovery process shown in FIG.
  • the UE B determines that the mode identifier sent by the UE A indicates that the broadcast identifier corresponds to the destination terminal UE B (in this paper).
  • the UE B matches its own application identifier with the received broadcast identifier, and if the matching succeeds, the temporary identifier code B whose application identifier matches is sent, and the sending may be sent by broadcast. It can also be directly unicast and sent to UE A.
  • the destination terminal when the destination terminal successfully transmits the broadcast identifier of the mobile terminal through the wireless resource, the destination terminal becomes the sender at this time, so when the broadcast identifier is sent, the terminal can also be combined.
  • the sending is set to indicate that the terminal corresponding to the broadcast identifier is a mode identifier of the broadcaster terminal.
  • the UE B may broadcast or unicast the code B to the UE A, and send the mode identifier to mode 1.
  • the destination terminal may request the network side to allocate the sum to the network side before the destination terminal does not obtain the temporary identifier by using the radio resource to send the mode identifier and the temporary identifier that matches the application identifier of the application.
  • FIG. 7 is a structural block diagram of a processing device for D2D discovery according to an embodiment of the present invention. As shown in FIG. 7, the processing device includes: an obtaining module 72 and a sending module 74.
  • the sending module 74 is configured to be connected to the obtaining module 72, and configured to send the mode identifier and the broadcast identifier obtained by the obtaining module 72, where the mode identifier is set to indicate the broadcast.
  • the terminal corresponding to the identifier is a broadcaster terminal or a destination terminal that is desired to be discovered.
  • the broadcast identifier may include a temporary identifier that the broadcaster terminal allocated by the network side matches the current application identifier; and the mode identifier is set to the indication.
  • the broadcast identifier may include the application identifier of the destination terminal.
  • the number of the destination terminals may be single or multiple.
  • a processing device 2 corresponding to the D2D discovery of the foregoing processing method 2 is further provided, and the device is configured to implement the foregoing embodiments and preferred embodiments, and details have been omitted for description.
  • the term "module" can implement a combination of software and/or hardware for a predetermined function.
  • the processing device includes: a receiving module 82 and a matching module 84.
  • the receiving module 82 is configured to receive, by using a radio resource, a mode identifier sent by the broadcaster terminal, and a broadcast identifier, where the mode identifier is set to indicate whether the terminal corresponding to the broadcast identifier is a broadcaster terminal or a destination terminal that is desired to be discovered; 84, connected to the receiving module 82, configured to match the broadcast identifier according to the mode identifier received by the receiving module 82.
  • the matching module 84 may include: a determining unit 842, configured to determine whether the mode identifier is set to indicate whether the terminal corresponding to the broadcast identifier is a broadcaster terminal or a destination terminal; and the matching unit 844 is connected to the determining unit 842, and is configured to be When the determination result of the determining unit 842 is the destination terminal, the application identifier of the target is matched with the received broadcast identifier; the sending unit 846 is connected to the matching unit 844, and is set to pass the matching unit 844 if the matching succeeds.
  • the radio resource transmission mode identifier and the temporary identifier that matches the application identifier of the radio resource, and the temporary identifier belongs to the broadcast identifier.
  • the broadcast identifier is used. It may be a temporary identifier of the broadcaster terminal; if the mode identifier indicates that the terminal corresponding to the broadcast identifier is the destination terminal, the broadcast identifier may be the application identifier of the destination party, where the mode identifier indicates that the terminal corresponding to the broadcast identifier is a broadcaster terminal.
  • the matching module 84 may further include: an obtaining unit 848, connected to the matching unit 844, and configured to: if the matching unit 844 has successfully matched, if the destination terminal has not obtained the temporary identifier matching the application identifier from the network, Then, the network side may request to allocate a temporary identifier that matches the application identifier.
  • an obtaining unit 848 connected to the matching unit 844, and configured to: if the matching unit 844 has successfully matched, if the destination terminal has not obtained the temporary identifier matching the application identifier from the network, Then, the network side may request to allocate a temporary identifier that matches the application identifier.
  • FIG. 9 is a schematic diagram of a process of discovering the mode 2 by the terminal A in the case that the terminal B has acquired the code B according to a preferred embodiment of the present invention.
  • Step S902 the terminal B obtains the code B from the home short-distance server through the broadcast request process shown in FIG. 2.
  • Terminal B also listens on the allowed resources, and the process of acquiring the intercepting resources is the same as step S314.
  • Step S904 the terminal A wants to find out whether the terminal B is nearby, and then obtains the code B of the terminal B from the home short-distance server through the monitoring request process shown in FIG. According to Figure 2, terminal A starts to monitor the code B of terminal B. If successful, terminal A discovers terminal B.
  • step S906 is continued.
  • Step S906 the terminal A applies for a broadcast resource from the network, and broadcasts the code B of the terminal B, with a new identifier indicating that the broadcast is mode 2, or indicating that the broadcast is carried by the target terminal.
  • C Ode Process and steps for applying for broadcast resources S214. Terminal A applies for monitoring resources at the same time, and the steps are the same as S314.
  • Step S908 after the terminal B listens, according to the new mode identifier, it is determined that the mode 2 is found, the terminal A broadcasts the code of the target terminal, and the terminal B determines whether the code B matches its own code B, if If there is no match, it will be discarded directly. If the match is matched, the terminal B broadcasts its own code B, with a mode identifier indicating that the broadcast is mode 1, or indicating that the broadcast carries its own code. Process and steps for applying for broadcast resources S214.
  • Step S910 after the terminal A listens to the broadcast, according to the mode identifier, it is determined that the mode 1 is found, indicating that the broadcast source's own code is received, because the terminal A already knows that the code corresponds to the terminal B, and thus the terminal B is found to be nearby.
  • FIG. 10 is a schematic diagram of a process of discovering mode 2 by terminal A in the case where terminal B has not acquired code B according to a preferred embodiment of the present invention.
  • Step S1002 the terminal A wants to find out whether the terminal B is in the vicinity, and then initiates the interception request process shown in FIG. 3, but obtains a general template matching the terminal B from the home proximity server of the terminal B, so that the terminal A is The received code is matched.
  • Step S1004 Terminal A applies for a broadcast resource from the network, and broadcasts an application identifier of the terminal B, with a new mode identifier, where the identifier indicates that the broadcast is Mode 2, or indicate that the broadcast carries the identity of the target terminal.
  • the process of applying for broadcast resources is consistent with step S214.
  • Terminal A applies for monitoring resources at the same time, and the steps are the same as S314.
  • Step S1006 After the terminal B listens, according to the new identifier that is carried, it is determined that the mode 2 is found, and the terminal A broadcasts the identifier of the target terminal, and then the terminal B determines whether the identifier matches its own identifier. If not, Then discard it directly. If it matches, and the available Code B has been allocated from the network, go directly to S1008, otherwise the terminal B requests the corresponding short-distance server to apply the corresponding code B through the broadcast request process of FIG. 2.
  • Step S1008 The terminal B broadcasts the allocated code B with a new mode identifier indicating that the broadcast is mode 1, or indicates that the broadcast carries its own code. The process of applying for broadcast resources is consistent with step S214.
  • Step S1010 After the terminal A monitors the broadcast, according to the mode identifier, it is determined that the mode 1 is found, indicating that the broadcast source's own code is received, and the terminal A determines whether the received code matches the mask obtained in step S1002, If the match is directly discarded, if the terminal A does not know who the code is, it is necessary to initiate a matching request process as shown in FIG. 4, and the application identifier of the terminal B of the code is obtained from the home proximity server, and then found. Terminal B is nearby.
  • 11 is a schematic diagram of a user that the terminal A wishes to discover is a user of a certain type of application in accordance with a preferred embodiment of the present invention. There may be multiple users of the application, and the terminal B is one of them.
  • Step S1102 Terminal A wishes to discover a user of a certain type of application, and then initiates a listening request process as shown in FIG.
  • the home proximity server of the terminal A determines that the monitoring target is a plurality of users of a type of application, first knows all the PLMNs that the user is allowed to listen according to the subscription, and then requests the short-distance servers of the PLMNs to allocate the corresponding to the application.
  • Step S1104 The terminal A applies for a broadcast resource from the network, and broadcasts the destination application identifier, with a new mode identifier, where the identifier indicates that the broadcast is mode 2, or indicates that the broadcast carries the identifier of the target application.
  • Process and steps for applying for broadcast resources S214. Terminal A applies for monitoring resources at the same time, and the steps are the same as S314.
  • Step S1106 After the terminal B listens, according to the new identifier that is carried, it is determined that the mode 2 is found, and the terminal A broadcasts the identifier of the target terminal, and then the terminal B determines whether the identifier matches its own identifier. If not, Then discard it directly.
  • Step S1108 The terminal B broadcasts the allocated code B, with a mode identifier indicating that the broadcast is mode 1, or indicating that the broadcast carries its own code.
  • Process and steps for applying for broadcast resources S214- Step S1110 The terminal A listens to the broadcast on the radio resources configured in each allowed PLMN according to the configured information.
  • the terminal A determines that the received code corresponds to the PLMN obtained in step S1102. If the mask matches, if it does not match, it will be discarded directly. If it matches, because terminal A does not know who the code is, it needs to initiate a matching request process as shown in Figure 4, and learn the terminal B application of the code from the home proximity server. After the identification, it is found that the terminal B is nearby. In each of the above processes, it is assumed that terminal A and terminal B are in the same home network.
  • the solution in this embodiment can also be applied to scenarios in which two terminals belong to different networks and discover.
  • software is also provided for performing the technical solutions described in the above embodiments and preferred embodiments.
  • a storage medium is also provided, the software being stored, including but not limited to an optical disk, a floppy disk, a hard disk, a rewritable memory, and the like.
  • a D2D discovery processing method and apparatus provided by an embodiment of the present invention have the following beneficial effects: The flexibility and diversity of the D2D communication mode are enhanced, and the user experience is improved.

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  • Mobile Radio Communication Systems (AREA)

Abstract

本发明公开了一种设备到设备（D2D）发现的处理方法及装置。该方法包括：广播方终端在D2D发现过程中获取到无线资源；广播方终端通过上述无线资源发送模式标识以及广播标识，其中，上述模式标识设置为指示上述广播标识对应的终端是广播方终端还是希望发现的目的方终端。本发明增强了D2D通讯模式的灵活性和多样性，提升了用户体验。

Description

D2D发现的处理方法及装置 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) 发现的方法及装置。 背景技术 临近区域的终端利用 D2D直接通信能够给终端带来很多好处， 比如更高的速率， 更低的延迟以及更小的功耗， 同时也极大地提高了运营商的无线资源效率， D2D 的 Relay模式有利于运营商提高无线覆盖； 对于应用来说利用 D2D通讯过程中的临近信 息可以开发出更加吸引人的新业务。 公共安全 （Public Safety) 系统也可以利用 D2D 技术实现没有无线覆盖的情况下终端之间的通讯。 图 1是根据相关技术的和 3GPP相关的 D2D网络系统架构示意图， 如图 1所示， 重点网元的功能如下说明： 终端： 也叫用户设备 （User Equipment, 简称为 UE)， 支持终端和终端之间的接 口 PC5发送和接收信号， 同时在有覆盖的情况下， 支持通过无线接入基站， 并通过 S1 接口接入核心网， 终端通过用户面接口 PC3和近距离通信服务器通信。 基站： 在演进系统中也叫演进的基站 (Evolved NodeB, 简称为 e B)， 主要为终端 的接入提供无线资源， 同时和核心网通过 S1接口互通。 核心网， 包括了移动管理单元和网关。 移动管理单元是控制面实体， 负责临时存 储用户数据的服务器， 负责鉴权、 移动性管理和签约检查等； 网关是用户面实体， 负 责为终端分配 IP地址、 转发终端的上下行数据包文， 并进行计费等。 近距离通信服务器， 该服务器位于核心网外面， 终端通过用户面接口 PC3和该服 务器进行通信。该服务器的主要功能包括了 D2D业务授权、为终端请求的应用分配临 时标识（code)用于终端广播、 协助进行 D2D发现以及计费等功能。 授权信息来自于 归属签约服务器。 归属签约服务器， 位于归属网， 主要功能是提供用户和应用的签约信息和认证信 息。 运营商为终端上的应用分配唯一的应用标识， 比如该标识包括了公共陆地移动网 络 （Public Land Mobile Network, 简称为 PLMN) 信息以及应用标识信息， PLMN包 括了国 （营商获得授权且运营商能够进行控制和收费， 这时终端一般不允许直接广播 自己的应用标识， 而是需要从近距离服务器获取一个和该应用标识唯一对应的临时标 识 code, 然后广播该 code。 两个终端的 D2D发现包括了 2个过程： UE A广播、 UE B监听。 如果 UE B监听 到的 code A已经认识，则终端 B发现终端 A在附近。如果终端 B不认识监听到的 code A， 则还有一个到网络匹配的过程， 从而获知和该 code A对应的 UE A的应用标识， 从而发现终端 A在附近。 这三个过程的描述分别如图 2、 图 3和图 4所示。 图 2是根据相关技术的广播请求过程的示意图， 如图 2所示， 该过程包括如下步 骤： 步骤 S202, 终端 A从运营商获取应用标识， 该应用标识只允许被 UE A所使用。 步骤 S204,终端 A如果希望利用运营商的无线资源广播自己，从而其他人能够发 现自己， 则和网络建立连接， 并向近距离服务器发送广播请求消息， 该请求里面包括 了希望广播的应用标识、 终端标识和发送 （announcing) 的指示。 终端 A通过自己归 属的 PLMN标识， 生成近距离服务器的标识， 并通过 DNS查找获知归属近距离服务 器 IP 地址。 终端标识为国际移动用户识别码 （International Mobile Subscriber Identification number, 简称为 IMSI ) 或者移动台 ISDN 号码 （Mobile Subscriber ISDN/PSTN number, 简称为 MSISDN)。 步骤 S206， 近距离服务器收到广播请求之后， 如果没有用户上下文， 则向归属服 务器请求发送签约请求， 带有用户标识。 步骤 S208, 归属服务器在签约响应中返回终端的签约信息。 步骤 S210, 根据签约信息归属近距离服务器判断允许该终端进行 D2D业务且该 用户的确签约有发送的应用标识， 则创建用户上下文， 并为该用户发送的应用标识分 配一个临时的广播标识 code A以及对应的有效期。如果考虑到终端 A可能漫游到拜访 网络， 归属近距离服务器还需要将临时标识 code A通知到拜访地的近距离服务器。 步骤 S212, 近距离服务器将分配的临时广播标识 code A和对应的有效期返回给 步骤 S214， 终端 A获取无线资源。 可以通过两种方式， 方式一为终端 A配置允 许 D2D广播的每个 PLMN所对应的无线资源，这样当 UE在无覆盖的时候，或者基站 指示用该方式的时候， 可以找到和当前注册的 PLMN匹配的 D2D无线资源； 方式二 是基站为终端 A分配可用的 D2D无线资源。 步骤 S216, 终端 A在获取的无线资源上广播所获得的 code A。 为了提高效率， 终端 A设置定时器， 在步骤 S210指示的有效期内定时广播。 当有效期超时之后，该广播标识 code A就失效了，终端 A必须重新发起广播请求 的过程， 重新获取广播标识 code A和有效期。 图 3是根据相关技术的监听请求过程的示意图， 如图 3所示， 该过程包括如下步 骤： 步骤 S302, 终端 B从运营商或者第三方获取终端 A的应用标识。 步骤 S304, 终端 B如果希望发现终端 A， 则和网络建立连接， 并向近距离服务器 发送监听请求， 该请求里面包括了希望发现的终端 A应用标识、 终端 B终端标识。 终 端 B通过自己归属的 PLMN标识， 生成近距离服务器的标识， 并通过 DNS查找获知 归属近距离服务器 IP地址。 终端标识为 IMSI或者 MSISDN。 步骤 S306， 近距离服务器收到发现请求之后， 如果没有用户上下文， 则向归属服 务器请求发送签约请求， 带有用户标识。 步骤 S308, 归属服务器在签约响应中返回终端的签约信息。 步骤 S310, 根据签约信息归属近距离服务器判断允许该终端进行 D2D业务， 则 创建用户上下文。 步骤 S312, 归属近距离服务器根据带上来的终端 A应用标识， 找到对应的临时的 广播标识 code A， 将该标识 code A并设立的一个有效期， 发送给终端 B。 如果终端 A 与终端 B不在同一个运营商，那么终端 B的归属近距离服务器根据带上来的终端 A应 用标识， 找到终端 A的归属近距离服务器， 查询获得 code A。 步骤 S314， 终端 B获取无线资源。 终端 B配置允许 D2D监听的每个 PLMN所 对应的无线资源， 终端可以在步骤 306所指示的有效值内监听所有的这些无线资源。 步骤 S316， 终端 B监听到 code A， 则成功发现终端 A在临近区域。 当有效期超时之后， 该 code A就失效了， 终端 B必须重新发起监听请求的过程， 获取新的 code A和有效期。 如果步骤 S304中， 终端 A带上来的是一类应用， 则步骤 S312可能返回一个模板 (mask), 这时候步骤 S316中若监听到的 code和该模板匹配， 比如 code的前几个 bit 和该模板完全匹配， 则终端 B需要发起匹配过程来获知和该 code对应的应用标识。 图 4是根据相关技术的匹配请求过程的示意图， 如图 4所示， 该过程包括如下步 骤： 步骤 S402, 终端 B监听到 code A， 该 code A和模板 （mask) 匹配， 但是终端 B 并不认识该 code A。 步骤 S404， 终端 B和网络建立连接， 并向归属近距离服务器发送匹配请求， 该请 求里面包括了发现的 code A、 终端 B的终端标识。 终端 B通过自己归属的 PLMN标 识， 生成近距离服务器的标识， 并通过 DNS查找获知归属近距离服务器 IP地址。 终 端标识为 IMSI或者 MSISDN。 步骤 S406， 近距离服务器收到发现请求之后， 如果没有用户上下文， 则向归属服 务器请求发送签约请求， 带有用户标识。 步骤 S408, 归属服务器在签约响应中返回终端的签约信息。 步骤 S410, 根据签约信息归属近距离服务器判断允许该终端进行 D2D业务。 归 属近距离服务器根据带上来的 code A获取终端 A应用标识。 如果终端 A与终端 B不 在同一个运营商， 那么终端 B的归属近距离服务器根据带上来的终端 A的 code A， 找 到终端 A的归属近距离服务器， 查询获得应用层标识。 步骤 S412, 归属近距离服务器设立该 code A的有效期， 然后将终端 A的应用标 识和有效期返回给 UE B， 于是 UE B成功发现终端 A在临近区域。 在该有效期之内， code A和终端 A应用标识都是匹配的。 目前 D2D发现仅支持一种模式，即终端 A广播自己的 code ,比如广 我在这里"， 其他终端收到之后即可发现终端 A。 但是这种发现模式较为被动， 终端用户无法主动 寻找其他终端进行 D2D通讯。 针对相关技术中的 D2D通讯模式较为单一、不够灵活的问题， 目前尚未提出有效 的解决方案。 发明内容 在本发明实施例中， 提供了一种 D2D发现的处理方法及装置， 以至少解决相关技 术中的 D2D通讯模式较为单一、 不够灵活的问题。 根据本发明的一个实施例， 提供了一种 D2D发现的处理方法， 包括： 广播方终端 在 D2D发现过程中获取到无线资源；所述广播方终端通过所述无线资源发送模式标识 以及广播标识， 其中， 所述模式标识设置为指示所述广播标识对应的终端是广播方终 端还是希望发现的目的方终端。 在所述模式标识设置为指示所述广播标识对应的终端是广播方终端的情况下， 所 述广播标识包括网络侧分配的广播方终端与当前应用标识相匹配的临时标识。 在所述模式标识设置为指示所述广播标识对应的终端是所述目的方终端的情况 下， 所述广播标识包括目的方终端的应用标识。 所述目的方终端数量为单个或多个。 根据本发明的另一实施例， 提供了一种 D2D发现的处理方法， 包括： 目的方终端 通过无线资源接收到广播方终端发送的模式标识以及广播标识， 其中， 所述模式标识 设置为指示接收的广播标识对应的终端是广播方终端还是希望发现的目的方终端； 所 述目的方终端根据所述模式标识对所述广播标识进行匹配。 所述目的方终端根据所述模式标识对所述广播标识进行匹配包括： 所述目的方终 端判断所述模式标识设置为指示广播标识对应的终端是广播方终端还是希望发现的目 的方终端； 如果判断结果是希望发现的目的方终端， 则所述目的方终端将自身的应用 标识与接收到的广播标识进行匹配， 并在匹配成功的情况下通过无线资源发送模式标 识和与自身的应用标识相匹配的临时标识， 所述临时标识属于所述广播标识， 所述模 式标识设置为指示所述广播标识对应的终端是广播方终端。 所述目的方终端在匹配成功的情况下在通过无线资源发送所述模式标识和自身的 应用标识相匹配的临时标识之前， 还包括： 所述目的方终端向网络侧请求分配和所述 自身的应用标识相匹配的临时标识。 根据本发明的再一实施例， 提供了一种 D2D发现的处理装置， 包括： 获取模块， 设置为在 D2D发现过程中获取到无线资源； 发送模块， 设置为通过所述无线资源发送 模式标识、 以及广播标识， 其中， 所述模式标识设置为指示所述广播标识对应的终端 是广播方终端还是希望发现的目的方终端。 在所述模式标识设置为指示所述广播标识对应的终端是广播方终端的情况下， 所 述广播标识包括网络侧分配的广播方终端与当前应用标识相匹配的临时标识。 优选地， 在所述模式标识设置为指示所述广播标识对应的终端是所述目的方终端 的情况下， 所述广播标识包括目的方终端的应用标识。 优选地， 所述目的方终端数量为单个或多个。 根据本发明的再一实施例，还提供了一种 D2D发现的处理装置，包括：接收模块， 设置为通过无线资源接收到广播方终端发送的模式标识以及广播标识， 其中， 所述模 式标识设置为指示所述广播标识对应的终端是广播方终端还是希望发现的目的方终 端； 匹配模块， 设置为根据所述模式标识对所述广播标识进行匹配。 所述匹配模块包括： 判断单元， 设置为判断所述模式标识设置为指示所述广播标 识对应的终端是广播方终端还是希望发现目的方终端； 匹配单元， 设置为在所述判断 单元的判断结果是目的方终端的情况下， 将自身的应用标识与接收到的广播标识进行 匹配； 发送单元， 设置为在所述匹配单元匹配成功的情况下通过无线资源发送模式标 识和与自身的应用标识相匹配的临时标识， 所述临时标识属于所述广播标识， 所述模 式标识设置为指示所述广播标识对应的终端是广播方终端。 所述匹配模块还包括： 获取单元， 设置为在所述匹配单元匹配成功的情况下， 向 网络侧请求分配与所述自身的应用标识相匹配的临时标识。 通过本发明实施例， 采用广播方终端在 D2D发现过程中获取到无线资源； 广播方 终端通过上述无线资源发送模式标识以及广播标识， 其中， 上述模式标识设置为指示 上述广播标识对应的终端是广播方终端还是希望发现的目的方终端的方式， 解决了相 关技术中的 D2D通讯模式较为单一、 不够灵活的问题， 增强了 D2D通讯模式的灵活 性和多样性， 提升了用户体验。 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是根据相关技术的和 3GPP相关的 D2D网络系统架构示意图； 图 2是根据相关技术的广播请求过程的示意图; 图 3是根据相关技术的监听请求过程的示意图; 图 4是根据相关技术的匹配请求过程的示意图； 图 5是根据本发明实施例的 D2D发现的处理方法一的流程图； 图 6是根据本发明实施例的 D2D发现的处理方法二的流程图； 图 7是根据本发明实施例的 D2D发现的处理装置一的结构框图； 图 8是根据本发明实施例的 D2D发现的处理装置二的结构框图； 图 9是根据本发明优选实施例的终端 B已经获取 code B的情况下， 终端 A实现 模式 2的发现过程示意图； 图 10是根据本发明优选实施例的终端 B尚未获取 code B的情况下， 终端 A实现 模式 2的发现过程示意图； 图 11是根据本发明优选实施例的终端 A希望发现的目标是周围某一类应用的用 户的示意图。 具体实施方式 本文中的 D2D发现支持至少两种模式。模式 1为终端 A广播自己的 code ,比如广 播 "我在这里"， 其他终端收到之后即可发现终端 A; 模式 2为终端 A需要发现周围 是否有感兴趣的目标， 比如可以广播 "谁在那里"模式或者 "终端 B在那里吗"， 其 他终端收到之后可以响应。 目前相关技术的方案只支持模式 1， 不支持模式 2。本文通 过对原来方案的扩充， 支持了模式 2以及其他模式的发现。 在本实施例中， 提供了一种 D2D发现的处理方法， 图 5是根据本发明实施例的 D2D发现的处理方法一的流程图， 如图 5所示， 该方法包括如下步骤： 步骤 S502, 广播方终端在 D2D发现过程中获取到无线资源； 步骤 S504, 广播方终端通过上述无线资源发送模式标识以及广播标识， 其中， 上 述模式标识设置为指示上述广播标识对应的终端是广播方终端还是希望发现的目的方 终端。 本实施例通过广播方终端在 D2D发现的广播过程中， 添加了模式标识， 使得接收 端能够通过该模式标识判断出广播方终端发送的广播标识是广播方终端自身的， 还是 其希望发现的目的方终端的，从而为实现广播方终端主动寻找其他终端进行 D2D发现 提供了技术基础， 解决了相关技术中的 D2D通讯模式较为单一、 不够灵活的问题， 增 强了 D2D通讯模式的灵活性和多样性， 提升了用户体验。 作为一种优选实施方式， 当上述模式标识设置为指示广播标识对应的终端是广播 方终端的情况下， 该广播标识可以包括网络侧分配的广播方终端与当前应用标识相匹 配的临时标识； 而当上述模式标识设置为指示广播标识对应的终端是目的方终端的情 况下， 该广播标识可以包括目的方终端的应用标识。例如， 在广播方终端是 UE A， 目 的方终端是 UE B的情况下， 当 UE A发送的模式标识是指示该广播标识对应自身（本 文中以模式 1来标识） 时， 该广播标识可以包括网络侧分配的与当前应用标识匹配的 code A;而当 UE A发送的模式标识是指示该广播标识对应目的方终端（本文中以模式 2来标识） 时， 该广播标识可以包括目的方终端的应用标识。 优选地， 上述目的方终端的数量可以为单个或多个， 例如， 上述目的方终端的应 用标识可以指定一个终端， 也可以指定一类终端。 通过这种方式， 可以进一步加强广 播方终端进行 D2D发现的主动性及灵活性。 在本实施例中， 还提供了另一种 D2D发现的处理方法， 图 6是根据本发明实施例 的 D2D发现的处理方法二的流程图， 如图 6所示， 该方法包括如下步骤： 步骤 S602, 目的方终端通过无线资源接收到广播方终端发送的模式标识以及广播 标识， 其中， 该模式标识设置为指示接收的广播标识对应的终端是广播方终端还是希 望发现的目的方终端； 步骤 S604, 目的方终端根据该模式标识对上述广播标识进行匹配。 本实施例通过接收侧的目的方终端在 D2D发现的广播过程中，接收到广播方终端 发来的模式标识， 通过该模式标识判断出广播方终端发送的广播标识是广播方终端自 身的， 还是其希望发现的目的方终端的， 然后根据判断结果进行相应的匹配过程， 从 而为实现广播方终端主动寻找其他终端进行 D2D发现提供了技术基础，解决了相关技 术中的 D2D通讯模式较为单一、 不够灵活的问题， 增强了 D2D通讯模式的灵活性和 多样性， 提升了用户体验。 作为一种优选实施方式， 目的方终端根据模式标识对广播标识进行匹配的方式可 以如下： 目的方终端判断模式标识设置为指示广播标识对应的终端是广播方终端还是 希望发现的目的方终端； 如果判断结果是广播标识对应的终端是希望发现的目的方终 端， 则目的方终端将自身的应用标识与接收到的广播标识进行匹配， 并在匹配成功的 情况下通过无线资源发送模式标识和与自身的应用标识相匹配的临时标识， 该临时标 识属于是广播标识的一种 （如前文所述， 如果模式标识指示广播标识对应的终端是广 播方终端， 则广播标识可以是广播方终端的临时标识； 如果模式标识指示广播标识对 应的终端是目的方终端， 则广播标识可以是目的方的应用标识），其中上述模式标识指 示广播标识对应的终端是广播方终端； 如果判断结果是广播标识对应的终端是广播方 终端， 则按照相关技术的匹配过程处理。 例如， 在广播方终端是 UE A， 目的方终端是 UE B的情况下， 当 UE B判断出 UE A发 送的模式标识是指示该广播标识对应 UE A自身 （本文中以模式 1来标识） 时， UE B 按照相关技术的匹配过程处理， 即如图 3所示的发现过程完成发现； 而当 UE B判断 出 UE A发送的模式标识是指示该广播标识对应目的方终端 UE B (本文中以模式 2来 标识）时， UE B将自身的应用标识与接收到的广播标识进行匹配， 并在匹配成功的情 况下发送自身的应用标识相匹配的临时标识 code B， 该发送可以通过广播发送， 也可 以直接单播发送给 UE A。优选地， 目的方终端在匹配成功的情况下， 其通过无线资源 发送自身的广播标识时， 由于此时该目的方终端变成了发送方， 因此其在发送该广播 标识时，也可以一并发送设置为指示该广播标识对应的终端是广播方终端的模式标识。 例如， UE B接收到 UE A发送的广播标识 code B并匹配成功后， UE B可以向 UE A 广播或者单播 code B , 并一并发送模式标识为模式 1。 优选地， 目的方终端在匹配成功的情况下， 通过无线资源发送模式标识以及自身 的应用标识相匹配的临时标识之前， 如果目的方终端未获取到该临时标识， 还可以向 网络侧请求分配和自身的应用标识相匹配的临时标识。 在本实施例中， 提供了一种对应于上述处理方法一的 D2D发现的处理装置一， 该 装置设置为实现上述实施例及优选实施方式， 已经进行过说明的不再赘述。 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 描述的装置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发现的处理装置一的结构框图， 如图 7所示， 该 处理装置包括： 获取模块 72和发送模块 74， 下面对各个模块进行详细说明： 获取模块 72， 设置为在 D2D发现过程中获取到无线资源； 发送模块 74， 与获取 模块 72相连， 设置为通过获取模块 72获取的无线资源发送模式标识以及广播标识， 其中， 上述模式标识设置为指示上述广播标识对应的终端是广播方终端还是希望发现 的目的方终端。 优选地， 在模式标识设置为指示广播标识对应的终端是广播方终端的情况下， 广 播标识可以包括网络侧分配的广播方终端与当前应用标识相匹配的临时标识； 而在模 式标识设置为指示广播标识对应的终端是目的方终端的情况下， 广播标识可以包括目 的方终端的应用标识。 其中， 上述目的方终端数量可以为单个， 也可以为多个。 在本实施例中， 还提供了一种对应于上述处理方法二的 D2D发现的处理装置二， 该装置设置为实现上述实施例及优选实施方式， 已经进行过说明的不再赘述。 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 所描述的装置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 8是根据本发明实施例的 D2D发现的处理装置二的结构框图， 如图 8所示， 该 处理装置包括： 接收模块 82和匹配模块 84， 下面对各个模块进行详细说明。 接收模块 82， 设置为通过无线资源接收到广播方终端发送的模式标识以及广播标 识， 其中， 所述模式标识设置为指示广播标识对应的终端是广播方终端还是希望发现 的目的方终端； 匹配模块 84， 与接收模块 82相连， 设置为根据接收模块 82接收的模 式标识对上述广播标识进行匹配。 优选地， 匹配模块 84可以包括： 判断单元 842， 设置为判断模式标识设置为指示 广播标识对应的终端是广播方终端还是希望发现目的方终端； 匹配单元 844， 与判断 单元 842相连， 设置为在判断单元 842的判断结果是目的方终端的情况下， 将自身的 应用标识与接收到的广播标识进行匹配； 发送单元 846， 与匹配单元 844相连， 设置 为在匹配单元 844匹配成功的情况下通过无线资源发送模式标识和与自身的应用标识 相匹配的临时标识， 该临时标识属于是广播标识的一种 （如前文所述， 如果模式标识 指示广播标识对应的终端是广播方终端， 则广播标识可以是广播方终端的临时标识； 如果模式标识指示广播标识对应的终端是目的方终端， 则广播标识可以是目的方的应 用标识）， 其中上述模式标识指示广播标识对应的终端是广播方终端。 优选地， 匹配模块 84还可以包括： 获取单元 848， 与匹配单元 844相连， 设置为 在匹配单元 844匹配成功的情况下， 如果目的方终端尚未从网络获取与自身应用标识 相匹配的临时标识， 则可以向网络侧请求分配和自身应用标识相匹配的临时标识。 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。 在以下优选实施例中， 提供了一种终端发现方案， 该方案是利用终端之间的直接 接口， 在终端之间进行发现。 下面结合附图对本优选实施例的方法做进一步详细说明。 图 9是根据本发明优选实施例的终端 B已经获取 code B的情况下， 终端 A实现 上述模式 2的发现过程示意图。 步骤 S902,终端 B通过图 2所示的广播请求过程，从归属近距离服务器获得 code B。 终端 B同时也在允许的资源上进行监听， 监听资源的获取过程和步骤 S314—样。 步骤 S904, 终端 A希望发现终端 B是否在附近， 于是通过图 3所示的监视请求 过程， 从归属近距离服务器获得终端 B的 code B。 按照图 2， 终端 A开始监视终端 B 的 code B , 如果成功， 则终端 A发现了终端 B。 如果失败， 比如定时器超时之后仍没 有收到 code B， 则继续步骤 S906。 步骤 S906， 终端 A从网络申请广播资源， 并广播终端 B的 code B， 带有新的标 识， 该标识指示该广播是模式 2， 或者指示该广播中所带的是目标终端的 Code。 申请 广播资源的过程和步骤 S214—致。 终端 A同时申请监听资源， 步骤和 S314—致。 步骤 S908, 终端 B监听到之后， 根据所带的新的模式标识， 判断是模式 2发现， 终端 A广播的是目标终端的 code, 于是终端 B判断该 code B是否和自己的 code B匹 配， 如果不匹配， 则直接丢弃， 匹配则终端 B广播自己的 code B， 带有模式标识， 该 标识指示该广播是模式 1， 或者指示该广播中所带的是自己的 code。 申请广播资源的 过程和步骤 S214—致。 步骤 S910, 终端 A监听到该广播之后， 根据模式标识， 判断是模式 1发现， 说明 收到的是广播源自己的 code, 因为终端 A已经知道该 code和终端 B对应， 于是发现 了终端 B在附近。 图 10是根据本发明优选实施例的终端 B尚未获取 code B的情况下， 终端 A实现 模式 2的发现过程示意图。 步骤 S1002, 终端 A希望发现终端 B是否在附近， 于是发起图 3所示的监听请求 过程， 但是从终端 B的归属近距离服务器获得和终端 B匹配的通用模板 (mask), 以便 于终端 A对收到的 code进行匹配。 如果终端 A和终端 B属于不同 PLMN, 则该过程 还需经过两个 PLMN之间的近距离服务器之间进行通信。 步骤 S1004, 终端 A从网络 申请广播资源， 并广播终端 B的应用标识， 带有新的模式标识， 该标识指示该广播是 模式 2，或者指示该广播中所带的是目标终端的标识。申请广播资源的过程和步骤 S214 一致。 终端 A同时申请监听资源， 步骤和 S314—致。 步骤 S1006, 终端 B监听到之后， 根据所带的新的标识， 判断是模式 2发现， 终 端 A广播的是目标终端的标识， 于是终端 B判断该标识是否和自己的标识匹配， 如果 不匹配， 则直接丢弃。 如果匹配， 且已经从网络分配了可用的 Code B， 则直接进入 S1008, 否则终端 B通过图 2的广播请求过程， 向归属近距离服务器申请对应的 code B。 步骤 S1008, 终端 B广播所分配的 code B， 带有新的模式标识， 该标识指示该广 播是模式 1，或者指示该广播中所带的是自己的 code。申请广播资源的过程和步骤 S214 一致。 步骤 S1010, 终端 A监听到该广播之后， 根据模式标识， 判断是模式 1发现， 说 明收到的是广播源自己的 code, 终端 A判断收到的 code和步骤 S1002中获得的 mask 是否匹配， 不匹配则直接丢弃， 如果匹配， 因为终端 A并不知道该 code是谁， 因此 需要发起一个图 4所示的匹配请求过程， 从归属近距离服务器获知该 code的终端 B 的应用标识， 之后即发现了终端 B在附近。 图 11是根据本发明优选实施例的终端 A希望发现的目标是周围某一类应用的用 户的示意图， 该类应用的用户可能有多个， 终端 B是其中一个。 步骤 S1102, 终端 A希望发现某一类应用的用户， 于是发起图 3所示的监听请求 过程。在该过程中，终端 A的归属近距离服务器判断监听目标是一类应用的多个用户， 首先根据签约知道用户允许监听的所有 PLMN,然后向这些 PLMN的近距离服务器请 求分配和该应用对应的模板 (mask), 并将获得的每个 PLMN对应的模板， 加上终端 A 归属近距离服务器分配的和目的应用对应的模板一起， 组成一个模板列表返回给终端 A,以便于终端 A对监听的 code进行匹配。 步骤 S1104, 终端 A从网络申请广播资源， 并广播目的应用标识， 带有新的模式 标识， 该标识指示该广播是模式 2， 或者指示该广播中所带的是目标应用的标识。 申 请广播资源的过程和步骤 S214—致。 终端 A同时申请监听资源， 步骤和 S314—致。 步骤 S1106, 终端 B监听到之后， 根据所带的新的标识， 判断是模式 2发现， 终 端 A广播的是目标终端的标识， 于是终端 B判断该标识是否和自己的标识匹配， 如果 不匹配，则直接丢弃。如果匹配且已经从网络分配了可用的 Code B，则直接进入 S1108, 否则终端 B通过图 2的广播请求过程， 向归属近距离服务器申请对应的 code B。 步骤 S1108， 终端 B广播所分配的 code B， 带有模式标识， 该标识指示该广播是 模式 1， 或者指示该广播中所带的是自己的 code。 申请广播资源的过程和步骤 S214— 致。 步骤 S1110, 终端 A根据配置的信息， 在允许的每个 PLMN内配置的无线资源上 监听广播。 若收到的广播带有 code和模式标识， 根据模式标识， 判断是模式 1发现， 说明收到的是广播源自己的 code, 终端 A判断收到的 code和步骤 S1102中获得的和 该 PLMN对应的 mask是否匹配， 不匹配则直接丢弃， 如果匹配， 因为终端 A并不知 道该 code是谁， 因此需要发起一个图 4所示的匹配请求过程， 从归属近距离服务器获 知该 code的终端 B应用标识， 之后即发现了终端 B在附近。 在上述各个流程中， 假设了终端 A和终端 B同处于相同的归属网。而通过增加归 属近距离服务器之间消息， 本实施例中的方案也同样能够适用于两个终端属于不同网 络并进行发现的场景中。 在另外一个实施例中， 还提供了一种软件， 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。 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， 并且在某些情况下， 可以以不同于此处 的顺序执行所示出或描述的步骤， 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。 工业实用性 如上所述， 本发明实施例提供的一种 D2D发现的处理方法及装置， 具有以下有益 效果： 增强了 D2D通讯模式的灵活性和多样性， 提升了用户体验。

Claims

权 利 要 求 书
1. 一种设备到设备 D2D发现的处理方法， 包括： 广播方终端在 D2D发现过程中获取到无线资源； 所述广播方终端通过所述无线资源发送模式标识以及广播标识， 其中， 所 述模式标识设置为指示所述广播标识对应的终端是广播方终端还是希望发现的 目的方终端。
2. 根据权利要求 1所述的方法， 其中， 在所述模式标识设置为指示所述广播标识 对应的终端是广播方终端的情况下， 所述广播标识包括网络侧分配的广播方终 端与当前应用标识相匹配的临时标识。
3. 根据权利要求 1所述的方法， 其中， 在所述模式标识设置为指示所述广播标识 对应的终端是所述目的方终端的情况下， 所述广播标识包括目的方终端的应用 标识。
4. 根据权利要求 1所述的方法， 其中， 所述目的方终端数量为单个或多个。
5. 一种设备到设备 D2D发现的处理方法， 包括： 目的方终端通过无线资源接收到广播方终端发送的模式标识以及广播标 识， 其中， 所述模式标识设置为指示接收的广播标识对应的终端是广播方终端 还是希望发现的目的方终端；
所述目的方终端根据所述模式标识对所述广播标识进行匹配。
6. 根据权利要求 5所述的方法， 其中， 所述目的方终端根据所述模式标识对所述 广播标识进行匹配包括：
所述目的方终端判断所述模式标识设置为指示广播标识对应的终端是广播 方终端还是希望发现的目的方终端；
如果判断结果是希望发现的目的方终端， 则所述目的方终端将自身的应用 标识与接收到的广播标识进行匹配， 并在匹配成功的情况下通过无线资源发送 模式标识和与自身的应用标识相匹配的临时标识， 所述临时标识属于所述广播 标识， 所述模式标识设置为指示所述广播标识对应的终端是广播方终端。
7. 根据权利要求 5所述的方法， 其中， 所述目的方终端在匹配成功的情况下在通 过无线资源发送所述模式标识和自身的应用标识相匹配的临时标识之前， 还包 括：
所述目的方终端向网络侧请求分配和所述自身的应用标识相匹配的临时标 识。
8. 一种设备到设备 D2D发现的处理装置， 包括： 获取模块， 设置为在 D2D发现过程中获取到无线资源； 发送模块， 设置为通过所述无线资源发送模式标识、 以及广播标识， 其中， 所述模式标识设置为指示所述广播标识对应的终端是广播方终端还是希望发现 的目的方终端。
9. 根据权利要求 8所述的装置， 其中， 在所述模式标识设置为指示所述广播标识 对应的终端是广播方终端的情况下， 所述广播标识包括网络侧分配的广播方终 端与当前应用标识相匹配的临时标识。
10. 根据权利要求 8所述的装置， 其中， 在所述模式标识设置为指示所述广播标识 对应的终端是所述目的方终端的情况下， 所述广播标识包括目的方终端的应用 标识。
11. 根据权利要求 8所述的装置， 其中， 所述目的方终端数量为单个或多个。
12. 一种设备到设备 D2D发现的处理装置， 包括： 接收模块， 设置为通过无线资源接收到广播方终端发送的模式标识以及广 播标识， 其中， 所述模式标识设置为指示所述广播标识对应的终端是广播方终 端还是希望发现的目的方终端；
匹配模块， 设置为根据所述模式标识对所述广播标识进行匹配。
13. 根据权利要求 12所述的装置， 其中， 所述匹配模块包括： 判断单元， 设置为判断所述模式标识设置为指示所述广播标识对应的终端 是广播方终端还是希望发现目的方终端；
匹配单元， 设置为在所述判断单元的判断结果是目的方终端的情况下， 将 自身的应用标识与接收到的广播标识进行匹配； 发送单元， 设置为在所述匹配单元匹配成功的情况下通过无线资源发送模 式标识和与自身的应用标识相匹配的临时标识， 所述临时标识属于所述广播标 识， 所述模式标识设置为指示所述广播标识对应的终端是广播方终端。
14. 根据权利要求 13所述的装置， 其中， 所述匹配模块还包括： 获取单元， 设置为在所述匹配单元匹配成功的情况下， 向网络侧请求分配 与所述自身的应用标识相匹配的临时标识。
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