WO2014026376A1 - 承载建立方法、基站、分组数据网关和计算机系统 - Google Patents

承载建立方法、基站、分组数据网关和计算机系统 Download PDF

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Publication number
WO2014026376A1
WO2014026376A1 PCT/CN2012/080296 CN2012080296W WO2014026376A1 WO 2014026376 A1 WO2014026376 A1 WO 2014026376A1 CN 2012080296 W CN2012080296 W CN 2012080296W WO 2014026376 A1 WO2014026376 A1 WO 2014026376A1
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WO
WIPO (PCT)
Prior art keywords
connection
user equipment
mode
policy
bearer
Prior art date
Application number
PCT/CN2012/080296
Other languages
English (en)
French (fr)
Inventor
郭雅莉
周卫华
张万强
吴晓波
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201280047942.4A priority Critical patent/CN103843452B/zh
Priority to EP12883020.5A priority patent/EP2887756B1/en
Priority to PCT/CN2012/080296 priority patent/WO2014026376A1/zh
Publication of WO2014026376A1 publication Critical patent/WO2014026376A1/zh
Priority to US14/619,483 priority patent/US9655156B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/14Direct-mode setup

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a bearer establishing method, a base station, a packet data gateway, and a computer system. Background technique
  • proximity discovery is becoming more and more important, for example: Users want to be able to know when friends are around or leaving.
  • the close-up discovery function will make people's life and work more convenient. For example: When the user arrives at the office, through the close-up discovery function, they can immediately know which colleagues are about to arrive at the office.
  • the short-range discovery function can be implemented by the device-to-device (D2D) communication technology.
  • the existing D2D bearer is established by the user equipment (User Equipment; UE) to the target UE.
  • UE User Equipment
  • the D2D service is initiated, and the network carries the D2D indication in the bearer setup message that needs to perform the D2D service according to the service requirement, and the bearer setup message is sent to the base station, and the base station controls the related UE to perform measurement, discover and establish the D2D link according to the bearer setup message from the network. .
  • the bearer setup process fails, the D2D service of the source UE cannot be established, and the source UE can abandon the service or re-initiate the relationship with the target UE. Normal business request.
  • the UE is more concerned with whether the service establishment is successful rather than using D2D communication.
  • the D2D service initiated by the source UE cannot establish D2D due to insufficient resources or the target UE is too far away from the source UE.
  • the link causes the service to fail.
  • the source UE re-initiates the normal service request with the target UE.
  • the service delay is large, which reduces the service experience of the user.
  • the service is repeated twice, which will bring more services to the carrier network. Signaling overhead.
  • a first aspect of the present invention provides a bearer establishment method, including:
  • the device-to-device D2D mode indication requested by the source user equipment, where the D2D mode indication includes a first D2D connection establishment mode or a second D2D connection establishment mode;
  • the D2D mode indication when the D2D connection cannot be successfully established, if the D2D mode indicates a first D2D connection establishment mode, establishing a normal connection for the source user equipment; if the D2D mode indication is The two D2D connection establishment mode returns a connection establishment failure response to the application layer function entity or the proximity service server.
  • a second aspect of the present invention provides a bearer establishment method, including:
  • the base station or the packet data gateway or the policy and charging rule function entity Transmitting, by the base station or the packet data gateway or the policy and charging rule function entity, a device-to-device D2D mode indication requested by the user equipment, the D2D mode indication including a first D2D connection establishment mode or a second D2D connection establishment mode; Or the packet data gateway or the policy and charging rule function entity indicates, according to the D2D mode indication, that a D2D connection is established for the user equipment when the D2D connection can be successfully established; or, according to the D2D mode indication When the D2D connection cannot be successfully established, if the D2D mode indicates a first D2D connection establishment mode, establish a normal connection for the user equipment, and if the D2D mode indicates a second D2D connection establishment mode, The feedback connection establishes a failure response.
  • a third aspect of the present invention provides a base station, including:
  • a first receiving module configured to receive a device-to-device D2D mode indication requested by the application layer function entity or the proximity service server, where the D2D mode indication includes a first D2D connection establishment mode or a second D2D connection establishment mode; And transmitting the D2D mode indication to the first establishing module and the first feedback module;
  • the first establishing module configured to receive the D2D mode indication from the first receiving module, according to the D2D mode indication, when the D2D connection can be successfully established, establish a D2D connection for the source user equipment;
  • the D2D connection cannot be successfully established, if the D2D mode indicates a first D2D connection establishment mode, establish a normal connection for the source user equipment;
  • the first feedback module is configured to receive the D2D mode finger from the first receiving module According to the D2D mode indication, when the D2D connection cannot be successfully established, if the D2D mode indicates a second D2D connection establishment mode, the connection is fed back to the application layer function entity or the proximity service server. Establish a failure response.
  • a fourth aspect of the present invention provides a packet data gateway, including:
  • a second receiving module configured to receive a device-to-device D2D mode indication requested by the application layer function entity or the proximity service server, where the D2D mode indication includes a first D2D connection establishment mode or a second D2D connection establishment mode; And transmitting the D2D mode indication to the second establishing module and the second feedback module;
  • the second establishing module is configured to receive the D2D mode indication from the second receiving module, and establish a D2D connection for the source user equipment when the D2D connection can be successfully established according to the D2D mode indication;
  • the D2D connection cannot be successfully established, if the D2D mode indicates a first D2D connection establishment mode, establish a normal connection for the source user equipment;
  • the second feedback module is configured to receive the D2D mode indication from the second receiving module, according to the D2D mode indication, when the D2D connection cannot be successfully established, if the D2D mode is indicated as a second D2D In the connection establishment mode, a connection establishment failure response is fed back to the application layer function entity or the proximity service server.
  • a fifth aspect of the present invention provides a policy and charging rule function entity, including: a third receiving module, configured to receive a device-to-device D2D mode indication requested by an application layer function entity or a proximity service server as a source user equipment,
  • the D2D mode indication includes a first D2D connection establishment mode or a second D2D connection establishment mode; and transmitting the D2D mode indication to the third setup module and the third feedback module;
  • the third establishing module is configured to receive the D2D mode indication from the third receiving module, and establish a D2D connection for the source user equipment when the D2D connection can be successfully established according to the D2D mode indication;
  • the D2D connection cannot be successfully established, if the D2D mode indicates a first D2D connection establishment mode, establish a normal connection for the source user equipment;
  • the third feedback module is configured to receive, by the third receiving module, the D2D mode indication, according to the D2D mode indication, when the D2D connection cannot be successfully established, if the D2D mode is indicated as a second D2D Connection establishment mode, then to the application layer functional entity or The proximity service server feeds back a connection establishment failure response.
  • a sixth aspect of the present invention provides an application layer functional entity, including:
  • a first sending module configured to send, to a base station or a packet data gateway or a policy and charging rule function entity, a device-to-device D2D mode indication that is requested by the user equipment, where the D2D mode indication includes a first D2D connection establishment mode or a second D2D connection.
  • the base station or the packet data gateway or the policy and charging rule function entity indicates, according to the D2D mode indication, that a D2D connection is established for the user equipment when the D2D connection can be successfully established; or According to the D2D mode indication, when the D2D connection cannot be successfully established, if the D2D mode indicates a first D2D connection establishment mode, a normal connection is established for the user equipment, if the D2D mode indication is In the second D2D connection establishment mode, the feedback connection establishment failure response.
  • a seventh aspect of the present invention provides a proximity service server, including:
  • a second sending module configured to send, to the base station or the packet data gateway or the policy and charging rule function entity, a device-to-device D2D mode indication requested by the user equipment, where the D2D mode indication includes a first D2D connection establishment mode or a second D2D connection Establishing a mode; wherein the base station or the packet data gateway or the policy and charging rule function entity indicates, according to the D2D mode indication, that a D2D connection is established for the user equipment when the D2D connection can be successfully established; or According to the D2D mode indication, when the D2D connection cannot be successfully established, if the D2D mode indicates a first D2D connection establishment mode, a normal connection is established for the user equipment, if the D2D mode indication is In the second D2D connection establishment mode, the feedback connection establishment failure response.
  • An eighth aspect of the present invention provides a computer system, comprising: at least one processor, and a memory, wherein the memory is configured to store executable program code, wherein the processor reads a program for:
  • the device-to-device D2D mode indication requested by the source user equipment, where the D2D mode indication includes a first D2D connection establishment mode or a second D2D connection establishment mode;
  • a ninth aspect of the present invention provides a computer system, comprising: at least one processor, and a memory, wherein the memory is configured to store executable program code, wherein the processor reads a program for:
  • the base station or the packet data gateway or the policy and charging rule function entity Transmitting, by the base station or the packet data gateway or the policy and charging rule function entity, a device-to-device D2D mode indication requested by the user equipment, the D2D mode indication including a first D2D connection establishment mode or a second D2D connection establishment mode; Or the packet data gateway or the policy and charging rule function entity indicates, according to the D2D mode indication, that a D2D connection is established for the user equipment when the D2D connection can be successfully established; or, according to the D2D mode indication When the D2D connection cannot be successfully established, if the D2D mode indicates a first D2D connection establishment mode, establish a normal connection for the user equipment, and if the D2D mode indicates a second D2D connection establishment mode, The feedback connection establishes a failure response.
  • the technical effect of the present invention is to receive a D2D mode indication requested by the application layer function entity or the proximity service server for the source user equipment, the D2D mode indication includes a first D2D connection establishment mode or a second D2D connection establishment mode; and then according to the above D2D Mode indication, when the D2D connection can be successfully established, establishing a D2D connection for the source user equipment; or, according to the D2D mode indication, when the D2D connection cannot be successfully established, if the D2D mode indication is the first D2D connection establishment mode,
  • the source user equipment establishes a normal connection, so that when the D2D service initiated by the source user equipment fails to establish a D2D link due to insufficient resources or the target user equipment is too far away from the source user equipment, a common connection is established for the source user equipment.
  • the source user equipment can perform service with the target user equipment without re-initiating the service request with the target user equipment, thereby reducing the service delay and improving the service experience of the user;
  • the signaling overhead of the carrier network can be reduced.
  • FIG. 1 is a flowchart of an embodiment of a bearer establishing method according to the present invention
  • FIG. 2 is a flowchart of another embodiment of a bearer establishing method according to the present invention.
  • FIG. 3 is a flowchart of still another embodiment of a bearer establishing method according to the present invention.
  • FIG. 4 is a flowchart of still another embodiment of a bearer establishing method according to the present invention.
  • FIG. 5 is a flowchart of still another embodiment of a bearer establishing method according to the present invention.
  • FIG. 6 is a schematic structural diagram of an embodiment of a base station according to the present invention.
  • FIG. 7 is a schematic structural diagram of an embodiment of a packet data gateway according to the present invention.
  • FIG. 8 is a schematic structural diagram of another embodiment of a packet data gateway according to the present invention.
  • FIG. 9 is a schematic structural diagram of an embodiment of a policy and charging rule function entity according to the present invention.
  • FIG. 10 is a schematic structural diagram of another embodiment of a policy and charging rule function entity according to the present invention. Schematic diagram of the structure of the embodiment;
  • FIG. 12 is a schematic structural diagram of an embodiment of a proximity service server according to the present invention
  • FIG. 13 is a schematic structural diagram of an embodiment of a computer system according to the present invention
  • FIG 14 is a block diagram showing another embodiment of a computer system of the present invention.
  • the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention.
  • the embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • FIG. 1 is a flowchart of an embodiment of a method for establishing a bearer according to the present invention. As shown in FIG. 1 , the method for establishing a bearer may include:
  • Step 101 Receive an application layer function (Application Function; hereinafter referred to as: AF) entity or a Proximity Server to request a D2D mode indication of the source UE, where the D2D mode indication includes a first D2D connection establishment mode or a second D2D Connection construction Vertical mode.
  • Application Function Application Function
  • the first D2D connection establishment mode is that the source UE needs to establish a D2D connection preferentially, that is, the source UE needs to establish a D2D connection preferentially, but the D2D connection is not required to be established.
  • the source UE may be the source UE.
  • the foregoing second D2D connection establishment mode is that the source UE requires that a D2D connection must be established, that is, the source UE requires that a D2D connection must be established.
  • the D2D connection cannot be established successfully only the feedback connection establishment fails, and is not the source.
  • the UE establishes a normal connection.
  • Step 102 according to the D2D mode indication, when the D2D connection can be successfully established, establishing a D2D connection for the source UE; or, according to the D2D mode indication, when the D2D connection cannot be successfully established, if the D2D mode is indicated as the first D2D connection In the setup mode, a normal connection is established for the source UE. If the D2D mode indication is the second D2D connection establishment mode, the connection establishment failure response is fed back to the AF entity or the proximity service server.
  • the network side entity may further feed back, to the AF entity or the proximity service server, the information established by the source UE as a D2D connection. .
  • the D2D mode indication that is received by the receiving AF entity or the short-range service server for the source UE may be: the base station receives the bearer setup request sent by the packet data network gateway (hereinafter referred to as PGW). Or carrying the modification request, the bearer setup request or the bearer modification request carries the foregoing D2D mode indication; wherein the bearer setup request is sent by the PGW receiving the Policy and Charging Rules Function (hereinafter referred to as: PCRF) entity
  • PCRF Policy and Charging Rules Function
  • the Policy and Charging Control (PCC) rule performs D2D bearer binding on the PCC rule to determine that a new D2D bearer needs to be sent to the base station.
  • the bearer modification request is sent by the PGW to the PCRF entity.
  • the PCC rule performs D2D bearer binding on the PCC rule, and determines that the existing D2D bearer needs to be modified and then sent to the base station.
  • the PCC rule carries a D2D mode indication, where the PCC rule further carries a service requirement of the source UE and an identifier of the target UE.
  • the interaction between the base station and the PGW is performed by a Mobility Management Entity (hereinafter referred to as MME) in the Long Term Evolution (LTE) system.
  • MME Mobility Management Entity
  • SGW Serving Gateway
  • UMTS Universal Mobile Telecommunications System
  • GPRS General Packet Radio Service
  • SGSN Serving GPRS Support
  • establishing a normal connection for the source UE may be: after the base station receives the bearer setup request, allocates radio resources to the source UE to establish The D2D bearer, if the D2D bearer cannot be successfully established, establish a normal bearer for the source UE according to the D2D mode indication; or, after receiving the bearer modification request, the base station allocates radio resources to the source UE to modify the existing D2D bearer, if If the D2D bearer cannot be successfully modified, the existing normal bearer is modified for the source UE according to the D2D mode indication.
  • the base station may further feed back, by the network, the AF entity or the short-distance service server, the information established by the source UE to be a normal connection.
  • the feedback establishment failure response to the AF entity or the proximity service server may be: After the bearer setup request, the source UE is allocated radio resources to establish a D2D load. If the D2D load cannot be successfully established, the bearer setup request is rejected according to the D2D mode indication, and the connection establishment failure is fed back to the AF entity or the proximity service server. After receiving the bearer modification request, the base station allocates a radio resource to the source UE to modify the existing D2D bearer. If the existing D2D bearer cannot be successfully modified, the base station performs the modification request according to the D2D mode indication, and The AF entity or the close-range service server feeds back the connection establishment failure response.
  • the D2D mode indication that is received by the receiving AF entity or the short-range service server for the source UE may be: the PGW receives the PCC rule sent by the PCRF entity, where the PCC rule carries the D2D mode indication, and further The PCC rule may also carry the service requirement of the source UE and the identifier of the target UE.
  • the normal connection for the source UE may be:
  • the PGW performs D2D bearer binding on the PCC rule, if it is determined that a new connection is required.
  • the D2D mode indicates that the normal bearer binding is performed on the PCC rule, and the normal bearer is established for the source UE or the existing common bearer is modified.
  • the PGW can also feed back the information established by the source UE to the AF entity or the short-distance service server as the normal connection.
  • the feedback establishment failure response to the AF entity or the proximity service server may be: PGW to PCC
  • the D2D bearer binding is performed, and if it is determined that the D2D bearer needs to be newly established, the bearer setup request is sent to the base station; if it is determined that the existing D2D bearer needs to be modified, the bearer modification request is sent to the base station; then, the PGW receives the bearer for the bearer. The establishment or the rejection response sent by the bearer modification request is sent. Finally, the PGW returns a PCC rule execution failure to the PCRF entity according to the D2D mode indication, so that the PCRF entity feeds back the connection establishment failure response to the AF entity or the proximity service server.
  • the PCC rule is that after the PCRF entity receives the service request sent by the AF entity or the proximity service server, the PCF rule is configured and sent to the PGW for the service request, where the service request carries the service requirement of the source UE, The identifier of the target UE and the D2D mode indication; or, the PCC rule is that the PCRF entity receives the service request sent by the AF entity or the proximity service server, and queries the source UE and the target according to the identifier of the target UE carried by the service request to the proximity service server. And the neighboring relationship between the UE and the target UE is obtained from the short-distance service server, and the service request is sent to the PGW, where the service request further carries the service requirement of the source UE and the D2D mode indication. .
  • the PG W performs the D2D load binding on the PCC rule
  • the PGW may bind the service in the same D2D mode for the same target UE to the same bearer according to the D2D mode indication and the identifier of the target UE.
  • the PGW binds the service for the same target UE and having the same service quality of service requirement and the same D2D mode to the service quality requirement in the service request of the source UE according to the D2D mode indication, the identity of the target UE, and the service requirement of the source UE.
  • the same bearer is transmitted.
  • the D2D mode indication that is received by the receiving AF entity or the short-range service server for the source UE may be: the PCRF entity receives the service request sent by the AF entity or the proximity service server; the service request carries the D2D Mode indication.
  • the service request further carries the service requirement of the source UE and the identifier of the target UE.
  • the D2D connection cannot be successfully established, if the D2D mode indicates the first D2D connection establishment mode, the normal connection may be established for the source UE.
  • the PCRF entity formulates a PCC rule for the D2D communication, where the PCC rule carries the service requirement of the source UE and the identifier of the target UE. Then, the PCRF entity sends the PCC rule for the D2D communication to the PGW for The PGW performs D2D bearer binding on the PCC rule for the D2D communication.
  • the PCRF entity receives the PCC rule execution failure response for the D2D communication sent by the PGW. Finally, the PCRF entity indicates, according to the D2D mode indication, that the service request is
  • the source UE formulates a PCC rule for normal communication, and sends the PCC rule for normal communication to the PGW, so that the PGW establishes a normal bearer or modifies an existing normal bearer according to the PCC rule for normal communication, to satisfy the source.
  • the PCRF entity may also feed back the information established by the source UE to the AF entity or the proximity service server as a normal connection.
  • the PCRF entity may further query the proximity service server for the proximity relationship between the source UE and the target UE according to the identifier of the target UE carried by the service request.
  • the source UE is obtained from the proximity service server and has a neighboring relationship with the target UE.
  • the foregoing PCC rule for D2D communication further carries a D2D indication, where the D2D indication is used to indicate that the PCC rule carrying the D2D indication is used for D2D communication; or, the PCRF entity is defined by the foregoing PCC rule for D2D communication.
  • the new name to indicate that the rule with the above new name is a PCC rule for D2D communication, does not need to carry the D2D indication in the rule with the above new name.
  • the service request further carries the service requirement of the source UE and the identifier of the target UE; according to the D2D mode indication, when the D2D connection cannot be successfully established, if the D2D mode indicates the second D2D connection establishment mode, then to the AF
  • the entity or the short-range service server feedback connection establishment failure response may be:
  • the PCRF entity formulates the D2D communication for the above service request. a PCC rule of the message, the PCC rule carries the service requirement of the source UE and the identity of the target UE; then, the PCRF entity sends the above PCC rule for D2D communication to the PGW for the PGW to perform the above PCC rule for D2D communication.
  • the PCRF entity receives the PCC rule execution failure response for the D2D communication sent by the PGW; finally, the PCRF entity feeds back the D2D connection establishment failure to the AF entity or the proximity service server according to the D2D mode indication, so that The AF entity or the proximity service server feeds back the connection establishment failure response to the source UE.
  • the receiving AF entity or the proximity service server is a D2D mode indication requested by the source UE, where the D2D mode indication is used to indicate that the source UE requests to establish a D2D connection preferentially, or the source UE requires that a D2D connection must be established;
  • the D2D mode indicates that when the D2D connection can be successfully established, a D2D connection is established for the source UE; or, according to the D2D mode indication, when the D2D connection cannot be successfully established, if the D2D mode indication is the first D2D connection establishment mode,
  • the source UE establishes a normal connection, so that when the D2D service initiated by the source UE fails to establish a D2D link due to insufficient resources or the target UE is too far away from the source UE, a common connection is established for the source UE, so that the source UE does not need to be re-initiated.
  • the service request with the target UE can perform the service with the target UE,
  • FIG. 2 is a flowchart of another embodiment of a method for establishing a bearer according to the present invention. As shown in FIG. 2, the method for establishing a load may include:
  • Step 201 Send, to the base station or the PGW or the PCRF entity, a D2D mode indication that is requested by the UE, where the D2D mode indication includes a first D2D connection establishment mode or a second D2D connection establishment mode, so that the base station or the PGW or the PCRF entity indicates according to the D2D mode.
  • the D2D connection can be successfully established, a D2D connection is established for the UE; or, according to the D2D mode indication, when the D2D connection cannot be successfully established, if the D2D mode indicates the first D2D connection establishment mode, a normal connection is established for the UE. If the D2D mode indicates the second D2D connection establishment mode, the feedback connection establishment failure response.
  • the first D2D connection establishment mode is that the source UE needs to establish a D2D connection preferentially, that is, the source UE needs to establish a D2D connection preferentially, but the D2D connection is not required to be established.
  • the source UE may be the source UE.
  • Establish a normal connection; the second The D2D connection establishment mode requires the source UE to establish a D2D connection. That is to say, the source UE requires a D2D connection to be established.
  • the D2D connection cannot be established successfully only the connection establishment fails, and the normal connection is not established for the source UE.
  • the information that the connection established by the base station or the PGW or the PCRF entity for the UE is D2D connection, where the connection established for the UE is established may be received.
  • the information for the D2D connection is that the base station or the PGW or the PCRF entity indicates according to the above D2D mode, and when the D2D connection can be successfully established, it is fed back after establishing the D2D connection for the UE.
  • the information that the connection established by the base station or the PGW or the PCRF entity for the UE is normally connected may be received, where the connection established for the UE is The information for the normal connection is that the base station or the PGW or the PCRF entity indicates according to the D2D mode.
  • the D2D connection cannot be successfully established, if the D2D mode indicates the first D2D connection establishment mode, it is fed back after establishing the normal connection for the UE.
  • the D2D mode indication requested by the UE is sent to the base station or the PGW or the PCRF entity, where the D2D mode indication includes the first D2D connection establishment mode or the second D2D connection establishment mode; and then the base station or the PGW or PCRF entity is according to the D2D mode.
  • the bearer establishment method provided by the present invention can reduce service delay, improve user satisfaction with service delay, and reduce operation when the UE is more concerned with whether the service is successfully established instead of using D2D communication.
  • Commercial network signaling overhead
  • the implementation process of the bearer establishment method provided by the present invention in the LTE system is introduced below.
  • the implementation process of the bearer establishment method provided by the present invention can be referred to in other communication systems.
  • the implementation process in the LTE system can be replaced by a similar network element, for example: replacing the PGW with a Gateway GPRS Support Node (hereinafter referred to as GGSN), replacing the MME/SGW with the SGSN, and using the radio network controller (Radio) Network Controller; hereinafter referred to as: RNC) or base station (NodeB) instead of an evolved base station (evolved NodeB; hereinafter referred to as eNB), etc., is no longer detailed.
  • GGSN Gateway GPRS Support Node
  • RNC radio network controller
  • NodeB base station
  • eNB evolved NodeB
  • system and “network” are often used interchangeably herein.
  • the term “and/or” in this article is merely an association describing the associated object, indicating that there can be three relationships, for example: A and / or B, which can mean: A exists separately, while A and B exist, exist alone B These three situations.
  • the character "/" in this article generally indicates that the contextual object is an "or” relationship.
  • FIG. 3 is a flowchart of still another embodiment of a method for establishing a bearer according to the present invention. As shown in FIG. 3, the method for establishing a load may include:
  • Step 301 The PCRF entity receives a service request sent by the AF entity or the proximity service server.
  • the service request carries the service requirements of the source UE, the D2D mode indication, and the target.
  • the identity of the UE is the identity of the UE.
  • the D2D mode indication includes a first D2D connection establishment mode or a second D2D connection establishment mode.
  • the first D2D connection establishment mode is that the source UE needs to establish a D2D connection preferentially, that is, the source UE needs to establish a D2D connection preferentially, but the D2D connection is not required to be established.
  • the source UE may be the source UE.
  • the foregoing second D2D connection establishment mode is that the source UE requires that a D2D connection must be established, that is, the source UE requires that a D2D connection must be established.
  • the D2D connection cannot be established successfully only the feedback connection establishment fails, and is not the source.
  • the UE establishes a normal connection.
  • the foregoing service request is that the AF entity or the proximity service server receives the source.
  • the service request sent by the UE After the service request sent by the UE, it is sent to the PCRF entity.
  • Step 302 Optionally, the PCRF entity queries the proximity service server for the neighbor relationship between the source UE and the target UE.
  • the source UE needs to establish a D2D connection, and the PCRF entity rejects the service request; for the source UE, the D2D is preferentially established.
  • the PCRF entity decides to establish a normal connection for the source UE.
  • Step 303 If the PCRF entity does not perform step 302, or the PCRF entity performs step 302, and obtains the neighboring relationship between the source UE and the target UE from the short-range service server, the Bay J PCRF entity formulates a PCC rule for the service request, and the PCC rule is The rules are sent to the PGW.
  • the PCC rule carries the service requirement of the source UE, the D2D mode indication, and the identifier of the target UE.
  • Step 304 The PGW performs D2D load binding on the PCC rule.
  • the D2D bearer binding may be based on the foregoing D2D mode indication and the identifier of the target UE, that is, the PGW binds the service in the same D2D mode of the same target UE to the same bearer; or, the D2D bearer is bound.
  • the service quality of service requirements in the D2D mode indication, the target UE identity, and the source UE's service requirements may be determined, that is, the PGW binds the same target UE and has the same service quality of service requirement and the same D2D mode.
  • the bearer is transmitted.
  • the foregoing service quality requirement may be a Quality of Service Class Identifier (QCI) and/or an Allocation and Retention Priority (ARP).
  • QCI Quality of Service Class Identifier
  • ARP Allocation and Retention Priority
  • Step 305 The PGW determines that a new D2D bearer needs to be created according to the bearer binding result, and needs to modify the existing D2D bearer. When it is determined that the D2D bearer needs to be newly established, the PGW sends a bearer setup request to the base station by using the MME/SGW, and when it is determined that the When some D2D bearers are modified, the PGW sends a bearer modification request to the base station through the MME/SGW.
  • the bearer setup request or the bearer modification request carries a D2D mode indication.
  • Step 306 After receiving the bearer setup request, the base station allocates the corresponding radio resource to the source UE to establish a D2D bearer. If the D2D load can be successfully established, the base station establishes a D2D bearer for the source UE.
  • the base station If the D2D bearer cannot be successfully established, for example: If the resource is insufficient, or the base station finds that the actual distance between the source UE and the target UE cannot establish a D2D bearer, the base station according to the D2D mode indication, when the D2D mode indicates the second D2D connection establishment mode, the base station rejects the bearer setup request, when the D2D is When the mode indication is the first D2D connection establishment mode, the base station establishes a normal bearer for the source UE.
  • the base station after receiving the bearer modification request, the base station allocates the corresponding radio resource to the source UE to repair If the existing D2D bearer can be modified successfully, the base station modifies the existing D2D bearer for the source UE. If the existing D2D bearer cannot be modified successfully, for example, the radio resource is insufficient, or the base station discovers the source UE. If the actual distance from the target UE cannot establish a D2D bearer, the base station indicates, according to the D2D mode indication, that when the D2D mode indicates the second D2D connection establishment mode, the base station rejects the bearer modification request, when the D2D mode indicates that the first D2D connection is established. In the mode, the base station modifies the existing normal bearer for the source UE.
  • Step 307 The base station feeds back a bearer setup response message to the PGW through the MME/SGW.
  • the D2D mode is indicated as the first D2D connection establishment mode
  • the bearer established as the source UE in the bearer setup response message is a D2D bearer.
  • the base station is unable to establish a D2D bearer, but establishes a normal bearer or modifies the existing normal bearer according to the D2D mode indication, the base station feeds back to the PGW in the bearer setup response message that the bearer established by the source UE is a normal bearer. information.
  • the PGW may re-execute the bearer binding according to the actually established bearer.
  • Step 308 the PGW feeds back the execution result of the PCC rule.
  • the information that the PGW establishes for the source UE to be a normal connection or a D2D connection is carried in the foregoing execution result and fed back to the PCRF entity.
  • Step 309 optionally, in the case that the D2D mode is indicated as the first D2D connection establishment mode, after the PCRF entity receives the information that the PGW feedback is established for the source UE to be a normal connection or a D2D connection, the foregoing is the source UE.
  • the established connection is fed back to the AF entity or the proximity service server for the information of the normal connection or the D2D connection, and is further fed back to the source UE by the AF entity or the proximity service server.
  • the base station establishes a D2D connection for the source UE when the D2D connection can be successfully established according to the D2D mode indication requested by the source UE. If the D2D connection cannot be successfully established, if the D2D mode indicates the first D2D connection establishment mode. And establishing a normal connection for the source UE, so that when the D2D service initiated by the source UE cannot establish a D2D link due to insufficient resources or the target UE is too far away from the source UE, a normal connection is established for the source UE, so that the source UE It is possible to perform a service request with the target UE without re-initiating a request with the target UE. The service can reduce the service delay and improve the user experience. Because there is no need to perform two services repeatedly, the signaling overhead of the carrier network can also be reduced.
  • FIG. 4 is a flowchart of still another embodiment of a bearer establishing method according to the present invention. As shown in FIG. 4, the method for establishing a load may include:
  • Step 401 to step 404 the same steps 301 to 304.
  • Step 405 The PGW determines that a new D2D bearer needs to be created according to the bearer binding result, and needs to modify the existing D2D bearer. When it is determined that the D2D bearer needs to be newly established, the PGW sends a bearer setup request to the base station by using the MME/SGW, and when it is determined that the When some D2D bearers are modified, the PGW sends a bearer modification request to the base station through the MME/SGW.
  • Step 406 After receiving the bearer setup request, the base station allocates the corresponding radio resource to the source UE to establish a D2D bearer. If the D2D bearer cannot be successfully established, for example, the radio resource is insufficient, or the base station finds that the actual distance between the source UE and the target UE cannot establish D2D. If the carrier is enabled, the base station sends a reject response to the PGW to reject the bearer setup request.
  • the base station after receiving the bearer modification request, allocates the corresponding radio resource to the source UE to modify the existing D2D bearer. If the existing D2D bearer cannot be modified successfully, for example, the radio resource is insufficient, or the base station finds the source UE and the target UE. If the actual distance cannot establish a D2D bearer, the base station sends a reject response to the PGW to reject the bearer modification request.
  • Step 407 After the PGW receives the reject response of the base station, according to the D2D mode indication, if the D2D mode indication is the second D2D connection establishment mode, the PGW returns a PCC rule execution failure to the PCRF entity, if the D2D mode indication is the first D2D. In the connection establishment mode, the PGW re-binds the normal bearer of the PCC rule, establishes a normal bearer for the source UE, or modifies the existing normal bearer.
  • Step 408 When the D2D mode is indicated as the first D2D connection establishment mode, after the PGW performs normal bearer binding on the PCC rule, the PGW initiates a normal bearer setup/tampering process to the base station.
  • Step 409 optionally, the PGW feeds back the information that the connection established by the source UE to the normal connection to the PCRF entity, and feeds the PCRF entity to the AF entity or the proximity service server, and the AF entity or the proximity service server further feeds back to the source.
  • the PGW feeds back the information that the connection established by the source UE to the normal connection to the PCRF entity, and feeds the PCRF entity to the AF entity or the proximity service server, and the AF entity or the proximity service server further feeds back to the source. UE.
  • the PGW indicates that the D2D connection is established for the source UE when the D2D connection can be successfully established according to the D2D mode indication requested by the source UE; when the D2D connection cannot be successfully established, If the D2D mode is indicated as the first D2D connection establishment mode, a normal connection is established for the source UE, so that when the D2D service initiated by the source UE cannot be established due to insufficient resources, or the target UE is too far away from the source UE, the D2D link cannot be established.
  • FIG. 5 is a flowchart of still another embodiment of a bearer establishing method according to the present invention. As shown in FIG. 5, the method for establishing a load may include:
  • Step 501 to step 502 the same steps 301 to 302.
  • Step 503 If the PCRF entity does not perform step 502, or the PCRF entity performs step 502, and obtains the proximity relationship between the source UE and the target UE from the short-range service server, the Bay J PCRF entity formulates a PCC rule for D2D communication for the service request. And send the PCC rule for D2D communication to the PGW.
  • the PCC rule for the D2D communication carries the service requirement of the source UE and the identifier of the target UE.
  • the foregoing PCC rule for D2D communication may further carry a D2D indication, where the D2D indication is used to indicate that the PCC rule carrying the D2D indication is used for D2D communication; or, the PCRF entity may be defined by the foregoing PCC rule for D2D communication.
  • the new name to indicate that the rule with the above new name is a PCC rule for D2D communication, does not need to carry the D2D indication in the rule with the above new name.
  • Step 504 The PGW performs bearer binding on the foregoing PCC rule for D2D communication.
  • the bearer binding may be based on the identifier of the target UE, that is, the PGW binds the D2D service for the same target UE to the same bearer for transmission; or the D2D bearer binding may be based on the identifier of the target UE.
  • the service quality of service requirements of the source UE's service requirements that is, the PGW binds the D2D service for the same target UE and has the same service quality of service requirement to the same bearer for transmission.
  • the foregoing service quality requirement may be a service QCI and/or an ARP.
  • Step 505 The PGW determines that a new D2D bearer needs to be modified according to the bearer binding result, and needs to modify the existing D2D bearer.
  • the PGW sends a bearer setup request to the base station by using the MME/SGW, and when it is determined that the Some D2D bears into When the row is modified, the PGW sends a bearer modification request to the base station through the MME/SGW.
  • the bearer setup request or the bearer modification request may also carry the D2D indication.
  • the PGW may define a new name for the bearer setup request or the bearer modification request, to indicate to the base station that the bearer requested to be established/modified is a D2D bearer. When the message with the new name does not need to carry the D2D indication.
  • Step 506 After receiving the bearer setup request, the base station allocates the corresponding radio resource to the source UE to establish a D2D bearer. If the D2D bearer cannot be successfully established, for example, the radio resource is insufficient, or the base station finds that the actual distance between the source UE and the target UE cannot establish D2D. If the carrier is enabled, the base station sends a reject response to the PGW to reject the bearer setup request.
  • the base station after receiving the bearer modification request, allocates the corresponding radio resource to the source UE to modify the existing D2D bearer. If the existing D2D bearer cannot be modified successfully, for example, the radio resource is insufficient, or the base station finds the source UE and the target UE. If the actual distance cannot establish a D2D bearer, the base station sends a reject response to the PGW to reject the bearer modification request.
  • Step 507 After receiving the reject response of the base station, the PGW feeds back to the PCRF entity that the PCC rule for D2D communication fails to execute.
  • Step 508 The PCRF entity indicates, according to the D2D mode, that if the D2D mode indicates the second D2D connection establishment mode, the PCRF entity feeds back the connection establishment failure to the AF entity, and if the D2D mode indicates the first D2D connection establishment mode, the PCRF entity A PCC rule for normal communication is developed for the source UE.
  • Step 509 The PCRF entity sends the foregoing PCC rule for normal communication to the PGW.
  • Step 511 The PGW feeds back to the PCRF entity the execution result of the PCC rule used for normal communication.
  • the PGW may carry the information that the connection established for the source UE is a normal connection in the execution result of the above PCC rule for normal communication.
  • Step 512 the PCRF entity feeds back information about the connection established by the source UE to the AF entity or the proximity service server, and the AF entity or the proximity service server further feeds back to the source UE.
  • the PCRF entity indicates according to the D2D mode requested by the source UE, when D2D When the connection is successfully established, a D2D connection is established for the source UE. When the D2D connection cannot be established successfully, if the D2D mode indicates the first D2D connection establishment mode, a normal connection is established for the source UE, so that the D2D initiated by the source UE can be used.
  • the normal connection is established for the source UE, so that the source UE does not need to re-initiate the service request with the target UE, and the target UE can be
  • the service delay can be reduced, and the service experience of the user can be improved. Since there is no need to perform two services repeatedly, the signaling overhead of the operator network can also be reduced.
  • FIG. 6 is a schematic structural diagram of an embodiment of a base station according to the present invention.
  • the base station in this embodiment may implement the process of the embodiment shown in FIG. 1 of the present invention.
  • the base station may include: a first receiving module 61, a establishing module 62 and a first feedback module 63;
  • the first receiving module 61 is configured to receive, by the AF entity or the short-range service server, a D2D mode indication requested by the source UE, where the D2D mode indication includes a first D2D connection establishment mode or a second D2D connection establishment mode; and the foregoing D2D
  • the mode indication is passed to the first establishing module 62 and the first feedback module 63;
  • the first establishing module 62 is configured to receive the foregoing D2D mode indication from the first receiving module 61, and establish a D2D connection for the source UE when the D2D connection can be successfully established according to the D2D mode indication; when the D2D connection cannot be successfully established, if The D2D mode indication is a first D2D connection establishment mode, and a normal connection is established for the source UE;
  • the first feedback module 63 is configured to receive the D2D mode indication from the first receiving module 61, according to the D2D mode indication, when the D2D connection cannot be successfully established, if the D2D mode indicates the second D2D connection establishment mode, then to the AF entity or The proximity service server feedback connection establishment failure response.
  • the first D2D connection establishment mode is that the source UE needs to establish a D2D connection preferentially, that is, the source UE needs to establish a D2D connection preferentially, but the D2D connection is not required to be established.
  • the source UE may be the source UE.
  • Establish a normal connection; the second The D2D connection establishment mode requires the source UE to establish a D2D connection. That is to say, the source UE requires a D2D connection to be established.
  • the D2D connection cannot be established successfully only the connection establishment fails, and the normal connection is not established for the source UE.
  • the first feedback module 63 is further configured to: when the D2D connection is successfully established, after the first establishing module 62 establishes a D2D connection for the source UE, feedback the connection established to the source UE to the AF entity or the proximity service server. Information for D2D connections.
  • the first receiving module 61 is specifically configured to receive a bearer setup request or a bearer modification request sent by the PGW, where the bearer setup request or the bearer modification request carries a D2D mode indication, where the bearer setup request is received by the PGW.
  • the PCC rule sent by the PCRF entity performs D2D bearer binding on the PCC rule to determine that a new D2D bearer needs to be sent to the base station;
  • the bearer modification request is that the PGW receives the PCC rule sent by the PCRF entity, and performs D2D on the PCC rule.
  • the bearer binding is determined to be sent to the base station after the modification of the existing D2D bearer, and the PCC rule carries the D2D mode indication.
  • the PCC rule may further carry the service requirement of the source UE and the target UE. Logo.
  • the first establishing module 62 is specifically configured to allocate a radio resource to the source UE to establish a D2D bearer after the first receiving module 61 receives the bearer setup request, and if the D2D bearer cannot be successfully established, according to the D2D mode indication, Or establishing a normal bearer for the source UE; or, after receiving the bearer modification request, the first receiving module 61 allocates radio resources to the source UE to modify the existing D2D bearer. If the existing D2D bearer cannot be successfully modified, according to the D2D mode. Indicates to modify the existing normal bearer for the source UE.
  • the first feedback module 63 is further configured to: after the first establishing module 62 establishes a normal bearer for the source UE or modify the existing common bearer for the source UE, feed back to the AF entity or the short-range service server as the source UE through the network.
  • the established connection is the information of the normal connection.
  • the first receiving module 61 receives the AF entity or the proximity service server as the source.
  • Determining, by the UE, the D2D mode indication, the D2D mode indication includes a first D2D connection establishment mode or a second D2D connection establishment mode; then the first setup module 62, according to the D2D mode indication, is established for the source UE when the D2D connection can be successfully established.
  • the D2D connection when the D2D connection cannot be successfully established, if the D2D mode indicates the first D2D connection establishment mode, a normal connection is established for the source UE, so that the source UE can send
  • the normal connection is established for the source UE, so that the source UE does not need to re-initiate the service request with the target UE.
  • the service is performed with the target UE, so that the service delay can be reduced and the service experience of the user can be improved. Since the service is not required to be repeated twice, the signaling overhead of the operator network can also be reduced.
  • FIG. 7 is a schematic structural diagram of an embodiment of a packet data gateway according to the present invention.
  • the PGW in this embodiment may implement the process of the embodiment shown in FIG. 1 of the present invention.
  • the PGW may include: a second receiving module 71. a second establishing module 72 and a second feedback module 73;
  • the second receiving module 71 is configured to receive, by the AF entity or the short-range service server, a D2D mode indication requested by the source UE, where the D2D mode indication includes a first D2D connection establishment mode or a second D2D connection establishment mode; and the foregoing D2D
  • the mode indication is passed to the second establishing module 72 and the second feedback module 73;
  • a second establishing module 72 configured to receive the D2D mode indication from the second receiving module 71, according to the D2D mode indication, when the D2D connection can be successfully established, establish a D2D connection for the source UE; when the D2D connection cannot be successfully established, if The D2D mode indication is a first D2D connection establishment mode, and a normal connection is established for the source UE;
  • the second feedback module 73 is configured to receive the D2D mode indication from the second receiving module 71, according to the D2D mode indication, when the D2D connection cannot be successfully established, if the D2D mode indicates the second D2D connection establishment mode, then to the AF entity or The proximity service server feedback connection establishment failure response.
  • the first D2D connection establishment mode is that the source UE needs to establish a D2D connection preferentially, that is, the source UE needs to establish a D2D connection preferentially, but the D2D connection is not required to be established.
  • the source UE may be the source UE.
  • the foregoing second D2D connection establishment mode is that the source UE requires that a D2D connection must be established, that is, the source UE requires that a D2D connection must be established.
  • the D2D connection cannot be established successfully only the feedback connection establishment fails, and is not the source.
  • the UE establishes a normal connection.
  • the second feedback module 73 is further configured to: when the D2D connection is successfully established, after the second establishing module 72 establishes a D2D connection for the source UE, feedback the connection established to the source UE to the AF entity or the proximity service server. Information for D2D connections.
  • the second receiving module 71 is specifically configured to receive the PCC sent by the PCRF entity.
  • the PCC rule carries the D2D mode indication. Further, the PCC rule may further carry the service requirement of the source UE and the identifier of the target UE.
  • the second receiving module 71 receives the D2D mode indication requested by the AF entity or the proximity service server for the source UE, where the D2D mode indication includes the first D2D connection establishment mode or the second D2D connection establishment mode; then the second setup module 72, according to the D2D mode indication, when the D2D connection can be successfully established, establishing a D2D connection for the source UE; or, according to the D2D mode indication, when the D2D connection cannot be successfully established, if the D2D mode indicates the first D2D connection establishment mode,
  • the normal connection is established for the source UE, so that when the D2D service initiated by the source UE cannot be established due to insufficient resources or the target UE is too far away from the source UE, a common connection is established for the source UE, so that the source UE does not need to be established.
  • FIG. 8 is a schematic structural diagram of another embodiment of a packet data gateway according to the present invention.
  • the second establishing module 72 may include: a bearer binding submodule 721, and a request. a sending submodule 722 and a response receiving submodule 723;
  • the bearer binding submodule 721 is configured to perform D2D bearer binding on the PCC rule received by the second receiving module 71.
  • the request sending sub-module 722 is configured to: when the bearer binding sub-module 721 determines that a new D2D bearer needs to be newly established, send a bearer setup request to the base station; when the bearer binding sub-module 721 determines that the existing D2D bearer needs to be modified, The base station sends a bearer modification request;
  • the response receiving submodule 723 is configured to receive a reject response sent by the base station to the foregoing bearer setup request or the foregoing bearer modification request.
  • the bearer binding sub-module 721 is further configured to perform normal bearer binding on the PCC rule according to the D2D mode indication, and establish a normal bearer or modify an existing normal bearer for the source UE.
  • the second feedback module 73 is further configured to carry the binding submodule
  • the PCRF entity feeds back to the AF entity or the short-distance service server that the connection established as the source UE is a normal connection.
  • the bearer binding submodule 721 is specifically configured to indicate and target the UE according to the foregoing D2D mode. Identifying that the services of the same D2D mode for the same target UE are bound to the same bearer for transmission; or, according to the foregoing D2D mode indication, the identifier of the target UE, and the service quality requirement in the service requirement of the source UE, the same target is The UE and the services with the same service quality of service requirement and the same D2D mode are bound to the same bearer for transmission.
  • the foregoing PGW can reduce the service delay and improve the service experience of the user, thereby reducing the signaling overhead of the operator network.
  • FIG. 9 is a schematic structural diagram of an embodiment of a policy and charging rule function entity according to the present invention.
  • the PCRF entity in this embodiment may implement the process of the embodiment shown in FIG. 1 of the present invention.
  • the PCRF entity may include : a third receiving module 91, a third establishing module 92 and a third feedback module 93;
  • the third receiving module 91 is configured to receive, by the AF entity or the proximity service server, a D2D mode indication requested by the source UE, where the D2D mode indication includes a first D2D connection establishment mode or a second D2D connection establishment mode; and the foregoing D2D
  • the mode indication is passed to the third establishing module 92 and the third feedback module 93;
  • the third establishing module 92 is configured to receive the D2D mode indication from the third receiving module 91, according to the D2D mode indication, when the D2D connection can be successfully established, establish a D2D connection for the source UE; when the D2D connection cannot be successfully established, if The D2D mode indication is a first D2D connection establishment mode, and a normal connection is established for the source UE;
  • the third feedback module 93 is configured to receive the D2D mode indication from the third receiving module 91, according to the D2D mode indication, when the D2D connection cannot be successfully established, if the D2D mode indicates the second D2D connection establishment mode, then to the AF entity or The proximity service server feedback connection establishment failure response.
  • the first D2D connection establishment mode is that the source UE needs to establish a D2D connection preferentially, that is, the source UE needs to establish a D2D connection preferentially, but the D2D connection is not required to be established.
  • the source UE may be the source UE.
  • the foregoing second D2D connection establishment mode is that the source UE requires that a D2D connection must be established, that is, the source UE requires that a D2D connection must be established.
  • the D2D connection cannot be established successfully only the feedback connection establishment fails, and is not the source.
  • the UE establishes a normal connection.
  • the third feedback module 93 is further configured to: after the D2D connection is successfully established, after the third establishing module 92 establishes a D2D connection for the source UE, to the AF entity or the close range
  • the connection established by the service server to the source UE is the information of the D2D connection.
  • the third receiving module 91 is specifically configured to receive a service request sent by the AF entity or the proximity service server; the service request carries the D2D mode indication.
  • the third receiving module 91 receives the D2D mode indication requested by the AF entity or the proximity service server for the source UE, where the D2D mode indication includes the first D2D connection establishment mode or the second D2D connection establishment mode;
  • the module 92 according to the D2D mode indication, establishes a D2D connection for the source UE when the D2D connection can be successfully established; or, according to the D2D mode indication, when the D2D connection cannot be successfully established, if the D2D mode indicates the first D2D connection establishment mode.
  • a normal connection for the source UE, so that when the D2D service initiated by the source UE cannot establish a D2D link due to insufficient resources or the target UE is too far away from the source UE, a normal connection is established for the source UE, so that the source UE
  • the service can be performed with the target UE without re-initiating the service request with the target UE, so that the service delay can be reduced and the service experience of the user can be improved; since the service is not required to be repeated twice, the carrier network can also be reduced. Signaling overhead.
  • FIG. 10 is a schematic structural diagram of another embodiment of a policy and charging rule function entity according to the present invention. The difference is that, in the PCRF entity shown in FIG. 10, the third establishing module 92 is different from the PCRF entity shown in FIG.
  • the method may include: a rule making submodule 921, a rule sending submodule 922, and a response receiving submodule 923;
  • the service request received by the third receiving module 91 further carries the service requirement of the source UE and the identifier of the target UE.
  • a rule making sub-module 921 configured to formulate a PCC rule for D2D communication for the service request received by the third receiving module 91, and transmit the PCC rule for the D2D communication to the rule sending sub-module 922; the PCC rule carrying source The service requirements of the UE and the identity of the target UE;
  • the rule sending sub-module 922 is configured to receive the PCC rule for the D2D communication from the rule making sub-module 921, and send the PCC rule for the D2D communication to the PGW for the PGW to perform the PCC rule for the D2D communication.
  • the response receiving submodule 923 is configured to receive a PCC rule execution failure response for D2D communication sent by the PGW;
  • the rule making submodule 921 is further configured to receive the foregoing execution in the response receiving submodule 923. After the failure response, according to the D2D mode indication, the PCC rule for the normal communication is prepared for the source UE, and the PCC rule for the normal communication is passed to the rule transmission sub-module 922;
  • the rule sending sub-module 922 is further configured to receive the PCC rule for normal communication from the rule making sub-module 921, and send the PCC rule for normal communication to the PGW, for the PGW to use the PCC rule for the common communication. Establish a common bearer or modify an existing normal bearer to meet the service requirements of the source UE.
  • the third feedback module 93 is further configured to: after the third establishing module 92 establishes a normal connection for the source UE, feed back, to the AF entity or the proximity service server, information that is established as a normal connection established by the source UE.
  • PCRF entity may further include:
  • the relationship query module 94 is configured to query the proximity service server for the proximity relationship between the source UE and the target UE according to the identifier of the target UE carried by the service request before the rule making submodule 921 formulates the PCC rule for the D2D communication.
  • the distance from the service server obtains that the source UE has a close relationship with the target UE.
  • the foregoing PCRF entity can reduce the service delay and improve the service experience of the user, thereby reducing the signaling overhead of the operator network.
  • FIG. 11 is a schematic structural diagram of an embodiment of an application layer functional entity according to the present invention.
  • the AF entity in this embodiment may implement the process of the embodiment shown in FIG. 2 of the present invention.
  • the AF entity may include:
  • the first sending module 1101 is configured to send, to the base station or the PGW or the PCRF entity, a D2D mode indication that is requested by the UE, where the D2D mode indication includes a first D2D connection establishment mode or a second D2D connection establishment mode; so that the base station or the PGW or the PCRF entity is configured according to
  • the D2D mode indicates that a D2D connection is established for the UE when the D2D connection can be successfully established; or, according to the D2D mode indication, when the D2D connection cannot be successfully established, if the D2D mode indicates the first D2D connection establishment mode,
  • the UE establishes a normal connection, and if the D2D mode indicates a second D2D connection establishment mode, the feedback connection establishment failure response.
  • the first D2D connection establishment mode is that the source UE needs to establish a D2D connection preferentially, that is, the source UE needs to establish a D2D connection preferentially, but the D2D connection is not required to be established.
  • the source UE may be the source UE.
  • Establish a normal connection; the second The D2D connection establishment mode requires the source UE to establish a D2D connection. That is to say, the source UE requires a D2D connection to be established.
  • the D2D connection cannot be established successfully only the connection establishment fails, and the normal connection is not established for the source UE.
  • the foregoing AF entity may further include: a fourth receiving module 1102, configured to receive, after the first sending module 1101 sends the D2D mode indication, receive feedback from a base station or a PGW or PCRF entity.
  • the information established for the UE is a D2D connection.
  • the information that the connection established by the UE is a D2D connection is that the base station or the PGW or the PCRF entity indicates according to the D2D mode.
  • the D2D connection is established after the UE is established. of.
  • the fourth receiving module 1102 is further configured to: after the first sending module 1101 sends the D2D mode indication, receive the information that the connection established by the base station or the PGW or the PCRF entity for the UE is a normal connection, where the foregoing is established by the UE.
  • the information connected to the normal connection is that the base station or the PGW or the PCRF entity indicates according to the above D2D mode.
  • the first sending module 1101 sends a D2D mode indication requested by the UE to the base station or the PGW or the PCRF entity, where the D2D mode indication includes a first D2D connection establishment mode or a second D2D connection establishment mode; so that the base station or the PGW or the PCRF
  • the entity establishes a D2D connection for the UE when the D2D connection can be successfully established according to the foregoing D2D mode indication; or, according to the D2D mode indication, when the D2D connection cannot be successfully established, if the D2D mode indicates the first D2D connection establishment mode, Then, a common connection is established for the UE, so that when the D2D service initiated by the source UE cannot be established due to insufficient resources or the target UE is too far away from the source UE, a normal connection is established for the source UE, so that the source UE does not need to be re-established. Initiating a service request with the target UE, which can
  • FIG. 12 is a schematic structural diagram of an embodiment of a proximity service server according to the present invention.
  • the proximity service server in this embodiment can implement the process of the embodiment shown in FIG. 2 of the present invention.
  • the proximity service server can be configured. Includes:
  • a second sending module 1201 configured to send a UE request to a base station or a PGW or a PCRF entity
  • the D2D mode indicates that the D2D mode indication includes a first D2D connection establishment mode or a second D2D connection establishment mode; so that the base station or the PGW or the PCRF entity indicates, according to the D2D mode indication, that the D2D connection is established for the UE when the D2D connection can be successfully established.
  • the D2D mode indication when the D2D connection cannot be successfully established, if the D2D mode indicates the first D2D connection establishment mode, a normal connection is established for the UE, and if the D2D mode indicates the second D2D connection establishment mode, The feedback connection establishes a failure response.
  • the first D2D connection establishment mode is that the source UE needs to establish a D2D connection preferentially, that is, the source UE needs to establish a D2D connection preferentially, but the D2D connection is not required to be established.
  • the source UE may be the source UE.
  • the foregoing second D2D connection establishment mode is that the source UE requires that a D2D connection must be established, that is, the source UE requires that a D2D connection must be established.
  • the D2D connection cannot be established successfully only the feedback connection establishment fails, and is not the source.
  • the UE establishes a normal connection.
  • the short-distance service server may further include:
  • the fifth receiving module 1202 is configured to: after the second sending module 1201 sends the D2D mode indication, receive the information that the UE establishes the connection established by the base station or the PGW or the PCRF entity to be a D2D connection, where the connection established by the UE is a D2D connection.
  • the information is that the base station or the PGW or PCRF entity indicates according to the above D2D mode indication, and when the D2D connection can be successfully established, it is fed back after establishing a D2D connection for the UE.
  • the fifth receiving module 1202 is further configured to: after the sending, by the second sending module 1201, the D2D mode indication, receive the information that the connection established by the base station or the PGW or the PCRF entity for the UE is a normal connection, where the foregoing is established by the UE.
  • the information connected to the normal connection is that the base station or the PGW or the PCRF entity indicates according to the above D2D mode.
  • the second sending module 1201 sends a D2D mode indication requested by the UE to the base station or the PGW or the PCRF entity, where the D2D mode includes a first D2D connection establishment mode or a second D2D connection establishment mode; so that the base station or the PGW or The PCRF entity indicates, according to the D2D mode indication, that a D2D connection is established for the UE when the D2D connection can be successfully established; or, according to the D2D mode indication, when the D2D connection cannot be successfully established, if The D2D mode indicates that the D2D connection is established in the first D2D connection mode, so that the D2D service initiated by the source UE cannot be established because the resource is insufficient, or the target UE is too far away from the source UE to establish a D2D link.
  • the source UE establishes a normal connection, so that the source UE can perform service with the target UE without re-initiating the service request with the target UE, thereby reducing the service delay and improving the service experience of the user; Service, therefore, can also reduce the signaling overhead of the operator network.
  • FIG. 13 is a schematic structural diagram of an embodiment of a computer system according to the present invention.
  • the computer system in this embodiment can implement the process of the embodiment shown in FIG. 1 of the present invention.
  • the computer system can include: at least one processor 1301, and a memory 1302 for storing executable program code, wherein the processor 1301 corresponds to a program for:
  • a D2D mode indication requested by the source UE, where the D2D mode indication includes a first D2D connection establishment mode or a second D2D connection establishment mode; according to the D2D mode indication, when the D2D connection can be successfully established, Establishing a D2D connection for the source UE; or, according to the D2D mode indication, when the D2D connection cannot be successfully established, if the D2D mode indicates the first D2D connection establishment mode, a normal connection is established for the source UE, if the D2D mode indication is the second In the D2D connection establishment mode, the connection establishment failure response is fed back to the AF entity or the proximity service server.
  • the first D2D connection establishment mode is that the source UE needs to establish a D2D connection preferentially, that is, the source UE needs to establish a D2D connection preferentially, but the D2D connection is not required to be established.
  • the source UE may be the source UE.
  • the foregoing second D2D connection establishment mode is that the source UE requires that a D2D connection must be established, that is, the source UE requires that a D2D connection must be established.
  • the D2D connection cannot be established successfully only the feedback connection establishment fails, and is not the source.
  • the UE establishes a normal connection.
  • the above computer system may further include a user interface 1303 and a bus 1304.
  • the above processor 1301, memory 1302 and user interface 1303 are both connected to the bus 1304.
  • the above computer system receives a D2D mode indication requested by the AF entity or the proximity service server for the source UE, the D2D mode indication includes a first D2D connection establishment mode or a second D2D connection establishment mode; and then according to the D2D mode indication, when the D2D connection can Successful establishment And establishing a D2D connection for the source UE; or, according to the D2D mode indication, when the D2D connection cannot be successfully established, if the D2D mode indicates the first D2D connection establishment mode, establishing a normal connection for the source UE, so that the source UE can be used.
  • the originating D2D service cannot establish a D2D link due to insufficient resources or the target UE is too far away from the source UE, the normal connection is established for the source UE, so that the source UE does not need to re-initiate the service request with the target UE.
  • the service is performed with the target UE, so that the service delay can be reduced and the service experience of the user can be improved. Since the service is not required to be repeated twice, the signaling overhead of the operator network can also be reduced.
  • FIG. 14 is a schematic structural diagram of another embodiment of a computer system according to the present invention.
  • the computer system in this embodiment can implement the flow of the embodiment shown in FIG. 2 of the present invention.
  • the computer system can include: at least one processor 1401, and a memory 1402 for storing executable program code, wherein the processor 1401 code corresponds to a program for:
  • a D2D mode indication of the UE request including a first D2D connection establishment mode or a second D2D connection establishment mode; so that the base station or the PGW or PCRF entity indicates according to the D2D mode, when the D2D connection
  • the establishment is successful, a D2D connection is established for the UE; or, according to the D2D mode indication, when the D2D connection cannot be successfully established, if the D2D mode indicates the first D2D connection establishment mode, a normal connection is established for the UE, if the D2D mode indicates Establishing a mode for the second D2D connection, the feedback connection establishes a failure response.
  • the first D2D connection establishment mode is that the source UE needs to establish a D2D connection preferentially, that is, the source UE needs to establish a D2D connection preferentially, but the D2D connection is not required to be established.
  • the source UE may be the source UE.
  • the foregoing second D2D connection establishment mode is that the source UE requires that a D2D connection must be established, that is, the source UE requires that a D2D connection must be established.
  • the D2D connection cannot be established successfully only the feedback connection establishment fails, and is not the source.
  • the UE establishes a normal connection.
  • the above computer system may further include a user interface 1403 and a bus 1404.
  • the processor 1401, the memory 1402, and the user interface 1403 are all connected to the bus 1404.
  • the computer system sends a D2D mode indication requested by the UE to the base station or the PGW or the PCRF entity, where the D2D mode indication includes the first D2D connection establishment mode or the second D2D connection.
  • the source UE is established.
  • the source UE can perform the service with the target UE without re-initiating the service request with the target UE, thereby reducing the service delay and improving the service experience of the user; Therefore, the signaling overhead of the carrier network can also be reduced.
  • modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the embodiment description, or the corresponding changes may be located in one or more apparatuses different from the embodiment.
  • the modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.

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Abstract

本发明提供一种承载建立方法、基站、分组数据网关和计算机系统,所述承载建立方法,包括:接收AF实体或近距离业务服务器为源UE请求的D2D模式指示,该D2D模式指示包括第一D2D连接建立模式或第二D2D连接建立模式;根据D2D模式指示,当D2D连接能够建立成功时,为源UE建立D2D连接;或者,根据D2D模式指示,当D2D连接无法建立成功时,如果D2D模式指示为第一D2D连接建立模式,则为源UE建立普通连接,如果D2D模式指示为第二D2D连接建立模式,则向AF实体或近距离业务服务器反馈连接建立失败响应。本发明可以减小业务时延,提高用户的业务体验度,进而可以减少运营商网络的信令开销。

Description

承载建立方法、 基站、 分组数据网关和计算机系统
技术领域 本发明涉及通信技术领域, 尤其涉及一种承载建立方法、 基站、 分组 数据网关和计算机系统。 背景技术
随着社交类应用的广泛应用, 近距离发现功能越来越重要, 例如: 用 户希望能够及时了解好友在周围出现或者离开。 近距离发现功能将使人们 的生活和工作变得更加方便, 例如: 当用户到达办公室以后, 通过近距离 发现功能, 能够马上了解到哪些同事即将到达办公室。
近距离发现功能可以通过设备到设备( Device to Device; 以下简称: D2D ) 通信技术实现, 现有的一种 D2D 承载的建立流程是, 源用户设备 ( User Equipment; 以下简称: UE )向目标 UE发起 D2D业务, 网络根据 业务需求在需要进行 D2D业务的承载建立消息中携带 D2D指示, 承载建 立消息发送到基站, 基站根据来自网络的承载建立消息, 控制相关 UE进 行测量, 发现以及建立 D2D链路。 如果因为资源不足, 或者目标 UE与源 UE距离太远等原因无法建立 D2D链路, 则承载建立流程失败, 源 UE的 D2D业务无法建立, 源 UE可以放弃该业务或者重新发起与目标 UE之间 的正常业务请求。
对于一些业务, UE 更关心的是业务建立是否成功而不是一定要使用 D2D通信, 现有技术中, 源 UE发起的 D2D业务因为资源不足, 或者目 标 UE与源 UE距离太远等原因无法建立 D2D链路导致业务失败, 源 UE 再重新发起与目标 UE之间的正常业务请求, 业务时延很大, 降低了用户 的业务体验,反复进行两次业务,对运营商网络也会带来较多的信令开销。 发明内容 本发明提供一种承载建立方法、 基站、 分组数据网关和计算机系统, 以减小业务时延。 本发明第一方面提供一种承载建立方法, 包括:
接收应用层功能实体或近距离业务服务器为源用户设备请求的设备 到设备 D2D模式指示,所述 D2D模式指示包括第一 D2D连接建立模式或 第二 D2D连接建立模式;
根据所述 D2D模式指示, 当所述 D2D连接能够建立成功时, 为所述 源用户设备建立 D2D连接; 或者,
根据所述 D2D模式指示, 当所述 D2D连接无法建立成功时, 如果所 述 D2D模式指示为第一 D2D连接建立模式, 则为所述源用户设备建立普 通连接; 如果所述 D2D模式指示为第二 D2D连接建立模式, 则向所述应 用层功能实体或所述近距离业务服务器反馈连接建立失败响应。
本发明第二方面提供一种承载建立方法, 包括:
向基站或分组数据网关或策略与计费规则功能实体发送用户设备请 求的设备到设备 D2D模式指示,所述 D2D模式指示包括第一 D2D连接建 立模式或第二 D2D 连接建立模式; 以便所述基站或所述分组数据网关或 所述策略与计费规则功能实体根据所述 D2D模式指示, 当所述 D2D连接 能够建立成功时, 为所述用户设备建立 D2D连接; 或者, 根据所述 D2D 模式指示, 当所述 D2D连接无法建立成功时, 如果所述 D2D模式指示为 第一 D2D连接建立模式,则为所述用户设备建立普通连接,如果所述 D2D 模式指示为第二 D2D连接建立模式, 则反馈连接建立失败响应。
本发明第三方面提供一种基站, 包括:
第一接收模块, 用于接收应用层功能实体或近距离业务服务器为源用 户设备请求的设备到设备 D2D模式指示, 所述 D2D模式指示包括第一 D2D连接建立模式或第二 D2D连接建立模式; 以及将所述 D2D模式指示 传递给第一建立模块和第一反馈模块;
所述第一建立模块, 用于从所述第一接收模块接收所述 D2D模式指 示, 根据所述 D2D模式指示, 当所述 D2D连接能够建立成功时, 为所述 源用户设备建立 D2D连接; 当所述 D2D连接无法建立成功时, 如果所述 D2D模式指示为第一 D2D连接建立模式, 则为所述源用户设备建立普通 连接;
所述第一反馈模块, 用于从所述第一接收模块接收所述 D2D模式指 示, 根据所述 D2D模式指示, 当所述 D2D连接无法建立成功时, 如果所 述 D2D模式指示为第二 D2D连接建立模式, 则向所述应用层功能实体或 所述近距离业务服务器反馈连接建立失败响应。
本发明第四方面提供一种分组数据网关, 包括:
第二接收模块, 用于接收应用层功能实体或近距离业务服务器为源用 户设备请求的设备到设备 D2D模式指示, 所述 D2D模式指示包括第一 D2D连接建立模式或第二 D2D连接建立模式; 以及将所述 D2D模式指示 传递给第二建立模块和第二反馈模块;
所述第二建立模块, 用于从所述第二接收模块接收所述 D2D模式指 示, 根据所述 D2D模式指示, 当所述 D2D连接能够建立成功时, 为所述 源用户设备建立 D2D连接; 当所述 D2D连接无法建立成功时, 如果所述 D2D模式指示为第一 D2D连接建立模式, 则为所述源用户设备建立普通 连接;
所述第二反馈模块, 用于从所述第二接收模块接收所述 D2D模式指 示, 根据所述 D2D模式指示, 当所述 D2D连接无法建立成功时, 如果所 述 D2D模式指示为第二 D2D连接建立模式, 则向所述应用层功能实体或 所述近距离业务服务器反馈连接建立失败响应。
本发明第五方面提供一种策略与计费规则功能实体, 包括: 第三接收模块, 用于接收应用层功能实体或近距离业务服务器为源用 户设备请求的设备到设备 D2D模式指示, 所述 D2D模式指示包括第一 D2D连接建立模式或第二 D2D连接建立模式; 以及将所述 D2D模式指示 传递给第三建立模块和第三反馈模块;
所述第三建立模块, 用于从所述第三接收模块接收所述 D2D模式指 示, 根据所述 D2D模式指示, 当所述 D2D连接能够建立成功时, 为所述 源用户设备建立 D2D连接; 当所述 D2D连接无法建立成功时, 如果所述 D2D模式指示为第一 D2D连接建立模式, 则为所述源用户设备建立普通 连接;
所述第三反馈模块, 用于从所述第三接收模块接收所述 D2D模式指 示, 根据所述 D2D模式指示, 当所述 D2D连接无法建立成功时, 如果所 述 D2D模式指示为第二 D2D连接建立模式, 则向所述应用层功能实体或 所述近距离业务服务器反馈连接建立失败响应。
本发明第六方面提供一种应用层功能实体, 包括:
第一发送模块, 用于向基站或分组数据网关或策略与计费规则功能实 体发送用户设备请求的设备到设备 D2D模式指示, 所述 D2D模式指示包 括第一 D2D连接建立模式或第二 D2D连接建立模式; 以便所述基站或所 述分组数据网关或所述策略与计费规则功能实体根据所述 D2D模式指示 , 当所述 D2D连接能够建立成功时, 为所述用户设备建立 D2D连接; 或者, 根据所述 D2D模式指示,当所述 D2D连接无法建立成功时,如果所述 D2D 模式指示为第一 D2D连接建立模式, 则为所述用户设备建立普通连接, 如果所述 D2D模式指示为第二 D2D连接建立模式, 则反馈连接建立失败 响应。
本发明第七方面提供一种近距离业务服务器, 包括:
第二发送模块, 用于向基站或分组数据网关或策略与计费规则功能实 体发送用户设备请求的设备到设备 D2D模式指示, 所述 D2D模式指示包 括第一 D2D连接建立模式或第二 D2D连接建立模式; 以便所述基站或所 述分组数据网关或所述策略与计费规则功能实体根据所述 D2D模式指示 , 当所述 D2D连接能够建立成功时, 为所述用户设备建立 D2D连接; 或者, 根据所述 D2D模式指示,当所述 D2D连接无法建立成功时,如果所述 D2D 模式指示为第一 D2D连接建立模式, 则为所述用户设备建立普通连接, 如果所述 D2D模式指示为第二 D2D连接建立模式, 则反馈连接建立失败 响应。
本发明第八方面提供一种计算机系统, 包括: 至少一个处理器, 以及 存储器, 所述存储器用于存储可执行程序代码, 其中, 所述处理器通过读 应的程序, 以用于:
接收应用层功能实体或近距离业务服务器为源用户设备请求的设备 到设备 D2D模式指示,所述 D2D模式指示包括第一 D2D连接建立模式或 第二 D2D连接建立模式;
根据所述 D2D模式指示, 当所述 D2D连接能够建立成功时, 为所述 源用户设备建立 D2D连接; 或者, 根据所述 D2D模式指示, 当所述 D2D连接无法建立成功时, 如果所 述 D2D模式指示为第一 D2D连接建立模式, 则为所述源用户设备建立普 通连接, 如果所述 D2D模式指示为第二 D2D连接建立模式, 则向所述应 用层功能实体或所述近距离业务服务器反馈连接建立失败响应。
本发明第九方面提供一种计算机系统, 包括: 至少一个处理器, 以及 存储器, 所述存储器用于存储可执行程序代码, 其中, 所述处理器通过读 应的程序, 以用于:
向基站或分组数据网关或策略与计费规则功能实体发送用户设备请 求的设备到设备 D2D模式指示,所述 D2D模式指示包括第一 D2D连接建 立模式或第二 D2D 连接建立模式; 以便所述基站或所述分组数据网关或 所述策略与计费规则功能实体根据所述 D2D模式指示, 当所述 D2D连接 能够建立成功时, 为所述用户设备建立 D2D连接; 或者, 根据所述 D2D 模式指示, 当所述 D2D连接无法建立成功时, 如果所述 D2D模式指示为 第一 D2D连接建立模式,则为所述用户设备建立普通连接,如果所述 D2D 模式指示为第二 D2D连接建立模式, 则反馈连接建立失败响应。
本发明的技术效果为, 接收应用层功能实体或近距离业务服务器为源 用户设备请求的 D2D模式指示,该 D2D模式指示包括第一 D2D连接建立 模式或第二 D2D连接建立模式; 然后根据上述 D2D模式指示, 当 D2D连 接能够建立成功时, 为源用户设备建立 D2D连接; 或者, 根据上述 D2D 模式指示, 当 D2D连接无法建立成功时, 如果上述 D2D模式指示为第一 D2D连接建立模式, 则为源用户设备建立普通连接, 从而可以当源用户设 备发起的 D2D业务因为资源不足, 或者目标用户设备与源用户设备距离 太远等原因无法建立 D2D链路时, 为源用户设备建立普通连接, 这样源 用户设备无须重新发起与目标用户设备之间的业务请求, 即可与目标用户 设备进行业务, 从而可以减小业务时延, 提高用户的业务体验度; 由于无 须反复进行两次业务, 因此也可以减少运营商网络的信令开销。 附图说明 实施例或现有技术描述中所需要使用的附图作一简单地介绍, 显而易见 地, 下面描述中的附图是本发明的一些实施例, 对于本领域普通技术人员 来讲, 在不付出创造性劳动性的前提下, 还可以根据这些附图获得其他的 附图。
图 1为本发明承载建立方法一个实施例的流程图;
图 2为本发明承载建立方法另一个实施例的流程图;
图 3为本发明承载建立方法再一个实施例的流程图;
图 4为本发明承载建立方法再一个实施例的流程图;
图 5为本发明承载建立方法再一个实施例的流程图;
图 6为本发明基站一个实施例的结构示意图;
图 7为本发明分组数据网关一个实施例的结构示意图;
图 8为本发明分组数据网关另一个实施例的结构示意图;
图 9为本发明策略与计费规则功能实体一个实施例的结构示意图; 图 10为本发明策略与计费规则功能实体另一个实施例的结构示意图; 图 1 1为本发明应用层功能实体一个实施例的结构示意图;
图 12为本发明近距离业务服务器一个实施例的结构示意图; 图 13为本发明计算机系统一个实施例的结构示意图;
图 14为本发明计算机系统另一个实施例的结构示意图。 具体实施方式 为使本发明实施例的目的、 技术方案和优点更加清楚, 下面将结合本 发明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描 述, 显然, 所描述的实施例是本发明一部分实施例, 而不是全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有作出创造性劳动前提 下所获得的所有其他实施例, 都属于本发明保护的范围。
图 1为本发明承载建立方法一个实施例的流程图, 如图 1所示, 该承 载建立方法可以包括:
步骤 101 , 接收应用层功能 ( Application Function; 以下简称: AF ) 实体或者近距离业务服务器( Proximity Server )为源 UE请求的 D2D模式 指示,上述 D2D模式指示包括第一 D2D连接建立模式或第二 D2D连接建 立模式。
其中,上述第一 D2D连接建立模式为源 UE要求优先建立 D2D连接, 也就是说, 源 UE要求优先建立 D2D连接, 但并非必须要求建立 D2D连 接, 当 D2D连接无法建立成功时, 可以为源 UE建立普通连接; 上述第二 D2D连接建立模式为源 UE要求必须建立 D2D连接, 也就是说, 源 UE要 求必须建立 D2D连接, 当 D2D连接无法建立成功时, 只能反馈连接建立 失败, 不为源 UE建立普通连接。
步骤 102, 根据上述 D2D模式指示, 当 D2D连接能够建立成功时, 为源 UE建立 D2D连接; 或者, 根据上述 D2D模式指示, 当 D2D连接无 法建立成功时, 如果上述 D2D模式指示为第一 D2D连接建立模式, 则为 源 UE建立普通连接,如果上述 D2D模式指示为第二 D2D连接建立模式, 则向 AF实体或者近距离业务服务器反馈连接建立失败响应。
进一步地, 步骤 102中, 当上述 D2D连接能够建立成功时, 为源 UE 建立 D2D连接之后,网络侧实体还可以向 AF实体或者近距离业务服务器 反馈为上述源 UE建立的连接为 D2D连接的信息。
本实施例的一种实现方式中, 接收 AF实体或者近距离业务服务器为 源 UE请求的 D2D模式指示可以为: 基站接收分组数据网关( Packet Data Network Gateway; 以下简称: PGW )发送的 载建立请求或 载修改请 求, 该承载建立请求或承载修改请求携带上述 D2D模式指示; 其中, 上 述承载建立请求是 PGW接收到策略与计费规则功能( Policy and Charging Rules Function; 以下简称: PCRF )实体发送的策略和计费控制( Policy and Charging Control; 以下简称: PCC )规则, 对上述 PCC规则进行 D2D承 载绑定, 确定需要新建 D2D承载之后发送给基站的; 上述承载修改请求 是 PGW接收到 PCRF实体发送的 PCC规则, 对该 PCC规则进行 D2D承 载绑定, 确定需要对已有的 D2D承载进行修改之后发送给基站的。
其中, 上述 PCC规则携带 D2D模式指示, 该 PCC规则还携带源 UE 的业务需求和目标 UE的标识。
需要说明的是, 本发明实施例中, 基站和 PGW之间的交互在长期演 进 (Long Term Evolution; 以下简称: LTE ) 系统中经过移动管理实体 ( Mobility Management Entity; 以下简称: MME ) /月良务网关 ( Serving Gateway; 以下简称: SGW )中转, 在通用移动通信系统( Universal Mobile Telecommunications System; 以下简称: UMTS ) 系统中经过服务通用分 组无线业务( General Packet Radio Service; 以下简称: GPRS ) 支持节点 ( Serving GPRS Support Node; 以下简称: SGSN ) 中转。
本实现方式中, 当 D2D连接无法建立成功时, 如果 D2D模式指示为 第一 D2D连接建立模式, 则为源 UE建立普通连接可以为: 基站接收到承 载建立请求之后为源 UE分配无线资源以建立 D2D承载, 如果 D2D承载 无法建立成功,则根据上述 D2D模式指示,为源 UE建立普通承载;或者, 基站接收到承载修改请求之后为源 UE分配无线资源以修改已有的 D2D承 载, 如果已有的 D2D承载无法修改成功, 则根据上述 D2D模式指示, 为 源 UE修改已有的普通承载。
进一步地, 为源 UE建立普通承载或者为源 UE修改已有的普通承载 之后, 基站还可以通过网络向 AF实体或近距离业务服务器反馈为上述源 UE建立的连接为普通连接的信息。
本实现方式中, 根据 D2D模式指示, 当 D2D连接无法建立成功时, 如果 D2D模式指示为第二 D2D连接建立模式, 则向 AF实体或近距离业 务服务器反馈连接建立失败响应可以为: 基站接收到承载建立请求之后, 为源 UE分配无线资源以建立 D2D ? 载, 如果 D2D ? 载无法建立成功, 则根据 D2D模式指示, 拒绝上述承载建立请求, 并向 AF实体或近距离业 务服务器反馈连接建立失败响应; 或者, 基站接收到承载修改请求之后, 为源 UE分配无线资源以修改已有的 D2D承载, 如果已有的 D2D承载无 法修改成功, 则根据 D2D模式指示, 拒绝上述承载修改请求, 并向 AF实 体或近距离业务服务器反馈连接建立失败响应。
本实施例的另一种实现方式中, 接收 AF实体或近距离业务服务器为 源 UE请求的 D2D模式指示可以为: PGW接收 PCRF实体发送的 PCC规 贝 , 该 PCC规则携带上述 D2D模式指示, 进一步地, 该 PCC规则还可以 携带源 UE的业务需求和目标 UE的标识。
本实现方式中, 当 D2D连接无法建立成功时, 如果 D2D模式指示为 第一 D2D连接建立模式, 则为源 UE建立普通连接可以为: PGW对上述 PCC规则进行 D2D承载绑定, 如果确定需要新建 D2D承载, 则向基站发 送承载建立请求; 如果确定需要对已有的 D2D承载进行修改, 则向基站 发送承载修改请求; 然后, PGW接收基站针对上述承载建立请求或上述 承载修改请求发送的拒绝响应, 最后, PGW根据上述 D2D模式指示, 重 新对 PCC规则进行普通承载绑定,为源 UE建立普通承载或修改已有的普 通承载。
进一步地, 为源 UE建立普通承载或修改已有的普通承载之后, PGW 还可以通过 PCRF实体向 AF实体或近距离业务服务器反馈为源 UE建立 的连接为普通连接的信息。
本实现方式中, 根据 D2D模式指示, 当 D2D连接无法建立成功时, 如果 D2D模式指示为第二 D2D连接建立模式, 则向 AF实体或近距离业 务服务器反馈连接建立失败响应可以为: PGW对 PCC规则进行 D2D承载 绑定, 如果确定需要新建 D2D承载, 则向基站发送承载建立请求; 如果 确定需要对已有的 D2D承载进行修改, 则向基站发送承载修改请求; 然 后, PGW接收基站针对上述承载建立请求或上述承载修改请求发送的拒 绝响应; 最后, PGW根据上述 D2D模式指示, 向 PCRF实体反馈 PCC规 则执行失败, 以便 PCRF实体向 AF实体或近距离业务服务器反馈连接建 立失败响应。
上述两种实现方式中, PCC规则是 PCRF实体接收到 AF实体或近距 离业务服务器发送的业务请求之后, 针对该业务请求制定并发送给 PGW 的, 其中, 上述业务请求携带源 UE的业务需求、 目标 UE的标识和 D2D 模式指示; 或者, PCC规则是 PCRF实体接收到 AF实体或近距离业务服 务器发送的业务请求, 根据该业务请求携带的目标 UE的标识向近距离业 务服务器查询源 UE与目标 UE的临近关系, 在从近距离业务服务器获得 源 UE与目标 UE具有临近关系之后,针对该业务请求制定并发送给 PGW 的, 其中, 上述业务请求还携带源 UE的业务需求和上述 D2D模式指示。
上述两种实现方式中, PG W对 PCC规则进行 D2D ? 载绑定可以为: PGW根据 D2D模式指示和目标 UE的标识, 将针对相同目标 UE的相同 D2D模式的业务绑定到相同承载进行传输; 或者, PGW根据 D2D模式指 示、 目标 UE的标识和源 UE的业务需求中的业务服务质量需求, 将针对 相同目标 UE且具有相同业务服务质量需求和相同 D2D模式的业务绑定到 相同承载进行传输。
本实施例的再一种实现方式中, 接收 AF实体或近距离业务服务器为 源 UE请求的 D2D模式指示可以为: PCRF实体接收 AF实体或近距离业 务服务器发送的业务请求; 上述业务请求携带 D2D模式指示。
本实现方式中, 上述业务请求还携带源 UE的业务需求和目标 UE的 标识, 当上述 D2D连接无法建立成功时, 如果 D2D模式指示为第一 D2D 连接建立模式, 则为源 UE建立普通连接可以为: PCRF实体针对上述业 务请求制定用于 D2D通信的 PCC规则, 该 PCC规则携带源 UE的业务需 求和目标 UE的标识; 然后, PCRF实体将用于 D2D通信的 PCC规则发送 给 PGW, 以供 PGW对用于 D2D通信的 PCC规则进行 D2D承载绑定; 接下来, PCRF实体接收 PGW发送的用于 D2D通信的 PCC规则执行失败 响应; 最后, PCRF实体根据上述 D2D模式指示, 针对上述业务请求为源 UE制定用于普通通信的 PCC规则,将所述用于普通通信的 PCC规则发送 给 PGW, 以供 PGW根据用于普通通信的 PCC规则建立普通承载或修改 已有的普通承载, 以满足源 UE的业务需求。
进一步地, 为源 UE建立普通连接之后, PCRF实体还可以向 AF实体 或近距离业务服务器反馈为源 UE建立的连接为普通连接的信息。
本实现方式中, PCRF 实体针对上述业务请求制定用于 D2D 通信的 PCC规则之前, PCRF实体还可以根据上述业务请求携带的目标 UE的标 识向近距离业务服务器查询源 UE与目标 UE的临近关系, 从近距离业务 服务器获得源 UE与目标 UE具有临近关系。
本实现方式中, 上述用于 D2D通信的 PCC规则还携带 D2D指示, 该 D2D指示用于指示携带该 D2D指示的 PCC规则用于 D2D通信; 或者, PCRF实体为上述用于 D2D通信的 PCC规则定义新的名称, 以指示具有 上述新的名称的规则为用于 D2D通信的 PCC规则, 则具有上述新的名称 的规则中不需携带 D2D指示。
本实现方式中, 上述业务请求还携带源 UE的业务需求和目标 UE的 标识; 则根据 D2D模式指示, 当 D2D连接无法建立成功时, 如果 D2D模 式指示为第二 D2D连接建立模式,则向 AF实体或近距离业务服务器反馈 连接建立失败响应可以为: PCRF实体针对上述业务请求制定用于 D2D通 信的 PCC规则, 该 PCC规则携带源 UE的业务需求和目标 UE的标识; 然后, PCRF实体将上述用于 D2D通信的 PCC规则发送给 PGW,以供 PGW 对上述用于 D2D通信的 PCC规则进行 D2D承载绑定; 接下来, PCRF实 体接收 PGW发送的用于 D2D通信的 PCC规则执行失败响应;最后, PCRF 实体根据上述 D2D模式指示, 向 AF实体或近距离业务服务器反馈 D2D 连接建立失败, 以便 AF实体或近距离业务服务器向源 UE反馈连接建立 失败响应。
上述实施例中,接收 AF实体或近距离业务服务器为源 UE请求的 D2D 模式指示, 该 D2D模式指示用于指示上述源 UE要求优先建立 D2D连接 或者该源 UE要求必须建立 D2D连接; 然后根据上述 D2D模式指示, 当 D2D连接能够建立成功时, 为源 UE建立 D2D连接; 或者,根据上述 D2D 模式指示, 当 D2D连接无法建立成功时, 如果上述 D2D模式指示为第一 D2D连接建立模式, 则为源 UE建立普通连接, 从而可以当源 UE发起的 D2D业务因为资源不足, 或者目标 UE与源 UE距离太远等原因无法建立 D2D链路时,为源 UE建立普通连接,这样源 UE无须重新发起与目标 UE 之间的业务请求, 即可与目标 UE进行业务, 从而可以减小业务时延, 提 高用户的业务体验度; 由于无须反复进行两次业务, 因此也可以减少运营 商网络的信令开销。
图 2为本发明承载建立方法另一个实施例的流程图, 如图 2所示, 该 ? 载建立方法可以包括:
步骤 201 , 向基站或 PGW或 PCRF实体发送 UE请求的 D2D模式指 示,上述 D2D模式指示包括第一 D2D连接建立模式或第二 D2D连接建立 模式; 以便基站或 PGW或 PCRF实体根据上述 D2D模式指示, 当 D2D 连接能够建立成功时, 为该 UE建立 D2D连接; 或者, 根据上述 D2D模 式指示,当上述 D2D连接无法建立成功时,如果 D2D模式指示为第一 D2D 连接建立模式, 则为 UE建立普通连接, 如果 D2D模式指示为第二 D2D 连接建立模式, 则反馈连接建立失败响应。
其中,上述第一 D2D连接建立模式为源 UE要求优先建立 D2D连接, 也就是说, 源 UE要求优先建立 D2D连接, 但并非必须要求建立 D2D连 接, 当 D2D连接无法建立成功时, 可以为源 UE建立普通连接; 上述第二 D2D连接建立模式为源 UE要求必须建立 D2D连接, 也就是说, 源 UE要 求必须建立 D2D连接, 当 D2D连接无法建立成功时, 只能反馈连接建立 失败, 不为源 UE建立普通连接。
进一步地, 向基站或 PGW或 PCRF实体发送 UE请求的 D2D模式指 示之后, 还可以接收基站或 PGW或 PCRF实体反馈的为上述 UE建立的 连接为 D2D连接的信息, 其中, 为上述 UE建立的连接为 D2D连接的信 息是基站或 PGW或 PCRF实体根据上述 D2D模式指示, 当 D2D连接能 够建立成功时, 为 UE建立 D2D连接之后反馈的。
进一步地, 向基站或 PGW或 PCRF实体发送 UE请求的 D2D模式指 示之后, 还可以接收基站或 PGW或 PCRF实体反馈的为上述 UE建立的 连接为普通连接的信息, 其中, 为上述 UE建立的连接为普通连接的信息 是基站或 PGW或 PCRF实体根据 D2D模式指示, 当 D2D连接无法建立 成功时, 如果 D2D模式指示为第一 D2D连接建立模式, 则为 UE建立普 通连接之后反馈的。
上述实施例中 , 向基站或 PGW或 PCRF实体发送 UE请求的 D2D模 式指示,该 D2D模式指示包括第一 D2D连接建立模式或第二 D2D连接建 立模式; 然后基站或 PGW或 PCRF实体根据上述 D2D模式指示, 当 D2D 连接能够建立成功时, 为 UE建立 D2D连接; 或者, 根据上述 D2D模式 指示, 当 D2D连接无法建立成功时, 如果 D2D模式指示为第一 D2D连接 建立模式, 则为 UE建立普通连接, 从而可以当源 UE发起的 D2D业务因 为资源不足,或者目标 UE与源 UE距离太远等原因无法建立 D2D链路时, 为源 UE建立普通连接, 这样源 UE无须重新发起与目标 UE之间的业务 请求, 即可与目标 UE进行业务, 从而可以减小业务时延, 提高用户的业 务体验度; 由于无须反复进行两次业务, 因此也可以减少运营商网络的信 令开销。
本发明提供的承载建立方法, 在 UE更关心的是业务是否建立成功而 不是一定要使用 D2D通信的情景下, 可以减小业务时延, 提高用户对于 业务时延的满意程度, 还可以减少运营商网络信令开销。
下面对本发明提供的承载建立方法在 LTE 系统中的实现过程进行介 绍。 本发明提供的承载建立方法在其他通信系统中的实现过程可以参照 LTE系统中的实现过程进行类似网元的替代即可 , 例如: 以网关 GPRS支 持节点(Gateway GPRS Support Node; 以下简称: GGSN )代替 PGW, 以 SGSN代替 MME/SGW, 以无线网络控制器 ( Radio Network Controller; 以下简称: RNC )或者基站(NodeB )代替演进基站 (evolved NodeB; 以 下简称: eNB ) 等, 在此不再——详述。
另外, 本文中术语 "系统" 和 "网络" 在本文中常可被互换使用。 本 文中术语 "和 /或" , 仅仅是一种描述关联对象的关联关系, 表示可以存在 三种关系, 例如: A和 /或 B, 可以表示: 单独存在 A, 同时存在 A和 B, 单独存在 B 这三种情况。 本文中字符 "/" , 一般表示前后关联对象是一 种 "或" 的关系。
图 3为本发明承载建立方法再一个实施例的流程图, 如图 3所示, 该 载建立方法可以包括:
步骤 301 , PCRF实体接收 AF实体或近距离业务服务器发送的业务请 求。
其中, 上述业务请求携带源 UE 的业务需求、 D2D模式指示和目标
UE的标识。
该 D2D模式指示包括第一 D2D连接建立模式或第二 D2D连接建立模 式。
其中,上述第一 D2D连接建立模式为源 UE要求优先建立 D2D连接, 也就是说, 源 UE要求优先建立 D2D连接, 但并非必须要求建立 D2D连 接, 当 D2D连接无法建立成功时, 可以为源 UE建立普通连接; 上述第二 D2D连接建立模式为源 UE要求必须建立 D2D连接, 也就是说, 源 UE要 求必须建立 D2D连接, 当 D2D连接无法建立成功时, 只能反馈连接建立 失败, 不为源 UE建立普通连接。
本实施例中, 上述业务请求是 AF实体或近距离业务服务器接收到源
UE发送的业务请求之后, 发送给 PCRF实体的。
步骤 302, 可选地, PCRF实体向近距离业务服务器查询源 UE与目标 UE的临近关系。
如果源 UE与目标 UE没有临近关系, 对于源 UE要求必须建立 D2D 连接的情况, PCRF实体拒绝上述业务请求;对于源 UE要求优先建立 D2D 连接的情况, PCRF实体决定为源 UE建立普通连接。
步骤 303 , 如果 PCRF实体没有执行步骤 302, 或者 PCRF实体执行 步骤 302后, 从近距离业务服务器获得源 UE与目标 UE具有临近关系, 贝 J PCRF实体针对上述业务请求制定 PCC规则, 并将该 PCC规则发送给 PGW。
其中, 上述 PCC规则中携带上述源 UE的业务需求、 D2D模式指示 和目标 UE的标识。
步骤 304, PGW对上述 PCC规则进行 D2D ? 载绑定。
具体地, 上述 D2D承载绑定可以基于上述 D2D模式指示和目标 UE 的标识, 也就是说, PGW将针对相同目标 UE的相同 D2D模式的业务绑 定到相同承载进行传输; 或者, 上述 D2D承载绑定可以基于 D2D模式指 示、 目标 UE标识和源 UE的业务需求中的业务服务质量需求, 也就是说, PGW将针对相同目标 UE且具有相同业务服务质量需求和相同 D2D模式 的业务绑定到相同承载进行传输。
其中, 上述业务服务质量需求可以是业务服务质量类别标识(Quality of Service Class Identifier; 以下简称: QCI ) 和 /或分配和保持优先级 ( Allocation and Retention Priority; 以下简称: ARP ) 。
步骤 305 , PGW根据承载绑定结果确定需要新建 D2D承载或需要对 已有的 D2D 承载进行修改, 当确定需要新建 D2D 承载时, PGW通过 MME/SGW向基站发送承载建立请求, 当确定需要对已有的 D2D承载进 行修改时, PGW通过 MME/SGW向基站发送承载修改请求。
上述承载建立请求或上述承载修改请求中携带 D2D模式指示。
步骤 306, 基站接收到承载建立请求后分配相应的无线资源给源 UE 以建立 D2D 载,如果 D2D ? 载能够建立成功 ,则基站为源 UE建立 D2D 承载; 如果 D2D承载无法建立成功, 例如: 无线资源不足, 或者基站发 现源 UE与目标 UE的实际距离无法建立 D2D承载, 则基站根据 D2D模 式指示, 当上述 D2D模式指示为第二 D2D连接建立模式时, 基站拒绝上 述承载建立请求, 当上述 D2D模式指示为第一 D2D连接建立模式时, 基 站为源 UE建立普通承载。
或者, 基站接收到承载修改请求后分配相应的无线资源给源 UE以修 改已有的 D2D承载,如果已有的 D2D承载能够修改成功,则基站为源 UE 修改已有的 D2D承载; 如果已有的 D2D承载无法修改成功, 例如: 无线 资源不足,或者基站发现源 UE与目标 UE的实际距离无法建立 D2D承载, 则基站根据 D2D模式指示,当上述 D2D模式指示为第二 D2D连接建立模 式时, 基站拒绝上述承载修改请求, 当上述 D2D模式指示为第一 D2D连 接建立模式时, 基站为源 UE修改已有的普通承载。
步骤 307, 基站通过 MME/SGW向 PGW反馈承载建立响应消息。 可选地, 对于上述 D2D模式指示为第一 D2D连接建立模式的情形, 如果基站建立 D2D承载或修改已有的 D2D承载成功, 则在承载建立响应 消息中反馈为源 UE建立的承载为 D2D承载的信息; 如果基站无法建立 D2D承载, 而是根据 D2D模式指示为 UE建立普通承载或修改已有的普 通承载, 则基站在承载建立响应消息中向 PGW反馈为源 UE建立的承载 为普通承载的信息。
接收到上述承载建立响应消息之后, PGW 可以根据实际建立的承载 重新执行承载绑定。
步骤 308, PGW反馈 PCC规则的执行结果。
可选地, 对于上述 D2D模式指示为第一 D2D连接建立模式的情形, PGW将为源 UE建立的连接为普通连接或者 D2D连接的信息携带在上述 执行结果中反馈给 PCRF实体。
步骤 309, 可选地, 对于上述 D2D模式指示为第一 D2D连接建立模 式的情形, PCRF实体接收到 PGW反馈的为源 UE建立的连接为普通连接 或者 D2D连接的信息之后, 将上述为源 UE建立的连接为普通连接或者 D2D连接的信息反馈给 AF实体或近距离业务服务器, 由 AF实体或近距 离业务服务器进一步反馈给源 UE。
上述实施例中, 基站根据源 UE请求的 D2D模式指示, 当 D2D连接 能够建立成功时, 为源 UE建立 D2D连接; 当 D2D连接无法建立成功时, 如果上述 D2D模式指示为第一 D2D连接建立模式, 则为源 UE建立普通 连接, 从而可以当源 UE发起的 D2D业务因为资源不足, 或者目标 UE与 源 UE距离太远等原因无法建立 D2D链路时, 为源 UE建立普通连接, 这 样源 UE无须重新发起与目标 UE之间的业务请求, 即可与目标 UE进行 业务, 从而可以减小业务时延, 提高用户的业务体验度; 由于无须反复进 行两次业务, 因此也可以减少运营商网络的信令开销。
图 4为本发明承载建立方法再一个实施例的流程图, 如图 4所示, 该 载建立方法可以包括:
步骤 401〜步骤 404, 同步骤 301〜步骤 304。
步骤 405 , PGW根据承载绑定结果确定需要新建 D2D承载或需要对 已有的 D2D 承载进行修改, 当确定需要新建 D2D 承载时, PGW通过 MME/SGW向基站发送承载建立请求, 当确定需要对已有的 D2D承载进 行修改时, PGW通过 MME/SGW向基站发送承载修改请求。
步骤 406, 基站接收到承载建立请求后分配相应的无线资源给源 UE 以建立 D2D承载, 如果 D2D承载无法建立成功, 例如: 无线资源不足, 或者基站发现源 UE与目标 UE的实际距离无法建立 D2D ? 载, 则基站向 PGW发送拒绝响应, 以拒绝上述承载建立请求。
或者, 基站接收到承载修改请求后分配相应的无线资源给源 UE以修 改已有的 D2D承载, 如果已有的 D2D承载无法修改成功, 例如: 无线资 源不足, 或者基站发现源 UE与目标 UE的实际距离无法建立 D2D承载, 则基站向 PGW发送拒绝响应, 以拒绝上述承载修改请求。
步骤 407, PGW接收到基站的拒绝响应之后, 根据 D2D模式指示, 如果上述 D2D模式指示为第二 D2D连接建立模式, 则 PGW向 PCRF实 体反馈 PCC规则执行失败,如果上述 D2D模式指示为第一 D2D连接建立 模式, 则 PGW重新对 PCC规则进行普通承载绑定, 为源 UE建立普通承 载或修改已有的普通承载。
步骤 408,当上述 D2D模式指示为第一 D2D连接建立模式时,在 PGW 重新对 PCC规则进行普通承载绑定之后, PGW向基站发起普通承载建立 / 爹改流程。
步骤 409, 可选地, PGW将为源 UE建立的连接为普通连接的信息反 馈给 PCRF实体, 并由 PCRF实体反馈给 AF实体或近距离业务服务器, AF实体或近距离业务服务器进一步反馈给源 UE。
上述实施例中, PGW根据源 UE请求的 D2D模式指示, 当 D2D连接 能够建立成功时, 为源 UE建立 D2D连接; 当 D2D连接无法建立成功时, 如果上述 D2D模式指示为第一 D2D连接建立模式, 则为源 UE建立普通 连接, 从而当源 UE发起的 D2D业务因为资源不足, 或者目标 UE与源 UE距离太远等原因无法建立 D2D链路时, 为源 UE建立普通连接, 这样 源 UE无须重新发起与目标 UE之间的业务请求, 即可与目标 UE进行业 务, 从而可以减小业务时延, 提高用户的业务体验度; 由于无须反复进行 两次业务, 因此也可以减少运营商网络的信令开销。
图 5为本发明承载建立方法再一个实施例的流程图, 如图 5所示, 该 载建立方法可以包括:
步骤 501〜步骤 502, 同步骤 301〜步骤 302。
步骤 503 , 如果 PCRF实体没有执行步骤 502, 或者 PCRF实体执行 步骤 502后, 从近距离业务服务器获得源 UE与目标 UE具有临近关系, 贝 J PCRF实体针对上述业务请求制定用于 D2D通信的 PCC规则, 并将该 用于 D2D通信的 PCC规则发送给 PGW。
其中, 上述用于 D2D通信的 PCC规则携带源 UE的业务需求和目标 UE的标识。
进一步地, 上述用于 D2D通信的 PCC规则还可以携带 D2D指示, 该 D2D指示用于指示携带上述 D2D指示的 PCC规则用于 D2D通信; 或者, PCRF实体可以为上述用于 D2D通信的 PCC规则定义新的名称, 以指示 具有上述新的名称的规则为用于 D2D通信的 PCC规则, 则具有上述新的 名称的规则中不需携带 D2D指示。
步骤 504, PGW对上述用于 D2D通信的 PCC规则进行承载绑定。 具体地, 上述承载绑定可以基于目标 UE的标识, 也就是说, PGW将 针对相同目标 UE的 D2D业务绑定到相同 ? 载进行传输;或者,上述 D2D 承载绑定可以基于目标 UE的标识和源 UE的业务需求中的业务服务质量 需求, 也就是说, PGW将针对相同目标 UE且具有相同业务服务质量需求 的 D2D业务绑定到相同承载进行传输。
其中, 上述业务服务质量需求可以是业务 QCI和 /或 ARP。
步骤 505 , PGW根据承载绑定结果确定需要新建 D2D承载或需要对 已有的 D2D 承载进行修改, 当确定需要新建 D2D 承载时, PGW通过 MME/SGW向基站发送承载建立请求, 当确定需要对已有的 D2D承载进 行修改时, PGW通过 MME/SGW向基站发送承载修改请求。
同样, 上述承载建立请求或上述承载修改请求中也可以携带 D2D指 示; 或者, PGW 可以为承载建立请求或承载修改请求定义新的名称, 以 向基站指示请求建立 /修改的承载为 D2D承载, 这时, 具有新的名称的消 息中不需要携带 D2D指示。
步骤 506, 基站接收到承载建立请求后分配相应的无线资源给源 UE 以建立 D2D承载, 如果 D2D承载无法建立成功, 例如: 无线资源不足, 或者基站发现源 UE与目标 UE的实际距离无法建立 D2D ? 载, 则基站向 PGW发送拒绝响应, 以拒绝上述承载建立请求。
或者, 基站接收到承载修改请求后分配相应的无线资源给源 UE以修 改已有的 D2D承载, 如果已有的 D2D承载无法修改成功, 例如: 无线资 源不足, 或者基站发现源 UE与目标 UE的实际距离无法建立 D2D承载, 则基站向 PGW发送拒绝响应, 以拒绝上述承载修改请求。
步骤 507, PGW接收到基站的拒绝响应之后, 向 PCRF实体反馈上述 用于 D2D通信的 PCC规则执行失败。
步骤 508, PCRF实体根据 D2D模式指示, 如果上述 D2D模式指示为 第二 D2D连接建立模式, 则 PCRF实体向 AF实体反馈连接建立失败, 如 果上述 D2D模式指示为第一 D2D连接建立模式, 则 PCRF实体为源 UE 制定用于普通通信的 PCC规则。
步骤 509, PCRF实体将上述用于普通通信的 PCC规则发送给 PGW。 步骤 510, PGW根据上述用于普通通信的 PCC规则建立普通承载或 修改已有的普通承载, 以满足源 UE的业务需求。
步骤 511 , PGW向 PCRF实体反馈上述用于普通通信的 PCC规则的 执行结果。
本实施例中, PGW可以将为源 UE建立的连接为普通连接的信息携带 在上述用于普通通信的 PCC规则的执行结果中。
步骤 512, 可选地, PCRF实体将为源 UE建立的连接为普通连接的信 息反馈给 AF实体或近距离业务服务器, AF实体或近距离业务服务器进一 步反馈给源 UE。
上述实施例中, PCRF实体根据源 UE请求的 D2D模式指示, 当 D2D 连接够建立成功时, 为源 UE建立 D2D连接; 当 D2D连接无法建立成功 时, 如果上述 D2D模式指示为第一 D2D连接建立模式, 则为源 UE建立 普通连接, 从而可以当源 UE发起的 D2D业务因为资源不足, 或者目标 UE与源 UE距离太远等原因无法建立 D2D链路时, 为源 UE建立普通连 接, 这样源 UE无须重新发起与目标 UE之间的业务请求, 即可与目标 UE 进行业务, 从而可以减小业务时延, 提高用户的业务体验度; 由于无须反 复进行两次业务, 因此也可以减少运营商网络的信令开销。
本领域普通技术人员可以理解: 实现上述方法实施例的全部或部分步 骤可以通过程序指令相关的硬件来完成, 前述的程序可以存储于一计算机 可读取存储介质中, 该程序在执行时, 执行包括上述方法实施例的步骤; 而前述的存储介质包括: ROM、 RAM, 磁碟或者光盘等各种可以存储程 序代码的介质。
图 6为本发明基站一个实施例的结构示意图, 本实施例中的基站可以 实现本发明图 1所示实施例的流程, 如图 6所示, 该基站可以包括: 第一 接收模块 61、 第一建立模块 62和第一反馈模块 63;
其中, 第一接收模块 61 , 用于接收 AF实体或近距离业务服务器为源 UE请求的 D2D模式指示, 该 D2D模式指示包括第一 D2D连接建立模式 或第二 D2D连接建立模式; 以及将上述 D2D模式指示传递给第一建立模 块 62和第一反馈模块 63;
第一建立模块 62, 用于从第一接收模块 61接收上述 D2D模式指示, 根据 D2D模式指示, 当 D2D连接能够建立成功时, 为源 UE建立 D2D连 接; 当上述 D2D连接无法建立成功时, 如果 D2D模式指示为第一 D2D连 接建立模式, 则为源 UE建立普通连接;
第一反馈模块 63 , 用于从第一接收模块 61接收上述 D2D模式指示, 根据 D2D模式指示, 当 D2D连接无法建立成功时, 如果 D2D模式指示为 第二 D2D连接建立模式,则向 AF实体或近距离业务服务器反馈连接建立 失败响应。
其中,上述第一 D2D连接建立模式为源 UE要求优先建立 D2D连接, 也就是说, 源 UE要求优先建立 D2D连接, 但并非必须要求建立 D2D连 接, 当 D2D连接无法建立成功时, 可以为源 UE建立普通连接; 上述第二 D2D连接建立模式为源 UE要求必须建立 D2D连接, 也就是说, 源 UE要 求必须建立 D2D连接, 当 D2D连接无法建立成功时, 只能反馈连接建立 失败, 不为源 UE建立普通连接。
进一步地, 第一反馈模块 63 , 还用于当上述 D2D连接能够建立成功 时, 在第一建立模块 62为源 UE建立 D2D连接之后, 向 AF实体或近距 离业务服务器反馈为源 UE建立的连接为 D2D连接的信息。
本实施例中, 第一接收模块 61 , 具体用于接收 PGW发送的承载建立 请求或承载修改请求, 上述承载建立请求或上述承载修改请求携带 D2D 模式指示;其中,上述承载建立请求是 PGW接收到 PCRF实体发送的 PCC 规则, 对上述 PCC规则进行 D2D承载绑定, 确定需要新建 D2D承载之后 发送给上述基站的; 上述承载修改请求是 PGW接收到 PCRF实体发送的 PCC规则, 对上述 PCC规则进行 D2D承载绑定, 确定需要对已有的 D2D 承载进行修改之后发送给上述基站的;其中,上述 PCC规则携带上述 D2D 模式指示, 进一步地, 上述 PCC规则还可以携带源 UE的业务需求和目标 UE的标识。
本实施例中, 第一建立模块 62, 具体用于在第一接收模块 61接收到 承载建立请求之后为源 UE分配无线资源以建立 D2D承载, 如果 D2D承 载无法建立成功, 则根据 D2D模式指示, 为源 UE建立普通承载; 或者, 在第一接收模块 61接收到承载修改请求之后为源 UE分配无线资源以修改 已有的 D2D承载, 如果已有的 D2D承载无法修改成功, 则根据上述 D2D 模式指示, 为源 UE修改已有的普通承载。
进一步地, 第一反馈模块 63 , 还用于在第一建立模块 62为源 UE建 立普通承载或者为源 UE修改已有的普通承载之后, 通过网络向 AF实体 或近距离业务服务器反馈为源 UE建立的连接为普通连接的信息。
上述基站中,第一接收模块 61接收 AF实体或近距离业务服务器为源
UE请求的 D2D模式指示, 该 D2D模式指示包括第一 D2D连接建立模式 或第二 D2D连接建立模式; 然后第一建立模块 62根据上述 D2D模式指 示, 当 D2D连接能够建立成功时, 为源 UE建立 D2D连接; 或者, 根据 上述 D2D模式指示, 当 D2D连接无法建立成功时, 如果 D2D模式指示为 第一 D2D连接建立模式, 则为源 UE建立普通连接, 从而可以当源 UE发 起的 D2D业务因为资源不足, 或者目标 UE与源 UE距离太远等原因无法 建立 D2D链路时, 为源 UE建立普通连接, 这样源 UE无须重新发起与目 标 UE之间的业务请求, 即可与目标 UE进行业务, 从而可以减小业务时 延, 提高用户的业务体验度; 由于无须反复进行两次业务, 因此也可以减 少运营商网络的信令开销。
图 7为本发明分组数据网关一个实施例的结构示意图, 本实施例中的 PGW可以实现本发明图 1所示实施例的流程, 如图 7所示, 该 PGW可以 包括: 第二接收模块 71、 第二建立模块 72和第二反馈模块 73;
其中, 第二接收模块 71 , 用于接收 AF实体或近距离业务服务器为源 UE请求的 D2D模式指示, 该 D2D模式指示包括第一 D2D连接建立模式 或第二 D2D连接建立模式; 以及将上述 D2D模式指示传递给第二建立模 块 72和第二反馈模块 73;
第二建立模块 72, 用于从第二接收模块 71接收上述 D2D模式指示, 根据 D2D模式指示, 当 D2D连接能够建立成功时, 为源 UE建立 D2D连 接; 当上述 D2D连接无法建立成功时, 如果 D2D模式指示为第一 D2D连 接建立模式, 则为源 UE建立普通连接;
第二反馈模块 73 , 用于从第二接收模块 71接收上述 D2D模式指示, 根据 D2D模式指示, 当 D2D连接无法建立成功时, 如果 D2D模式指示为 第二 D2D连接建立模式,则向 AF实体或近距离业务服务器反馈连接建立 失败响应。
其中,上述第一 D2D连接建立模式为源 UE要求优先建立 D2D连接, 也就是说, 源 UE要求优先建立 D2D连接, 但并非必须要求建立 D2D连 接, 当 D2D连接无法建立成功时, 可以为源 UE建立普通连接; 上述第二 D2D连接建立模式为源 UE要求必须建立 D2D连接, 也就是说, 源 UE要 求必须建立 D2D连接, 当 D2D连接无法建立成功时, 只能反馈连接建立 失败, 不为源 UE建立普通连接。
进一步地, 第二反馈模块 73 , 还用于当上述 D2D连接能够建立成功 时, 在第二建立模块 72为源 UE建立 D2D连接之后, 向 AF实体或近距 离业务服务器反馈为源 UE建立的连接为 D2D连接的信息。
本实施例中,第二接收模块 71 , 具体用于接收 PCRF实体发送的 PCC 规则; 上述 PCC规则携带 D2D模式指示, 进一步地, 上述 PCC规则还可 以携带源 UE的业务需求和目标 UE的标识。
上述 PGW中, 第二接收模块 71接收 AF实体或近距离业务服务器为 源 UE请求的 D2D模式指示,该 D2D模式指示包括第一 D2D连接建立模 式或第二 D2D连接建立模式; 然后第二建立模块 72根据上述 D2D模式 指示, 当 D2D连接能够建立成功时, 为源 UE建立 D2D连接; 或者, 根 据上述 D2D模式指示, 当 D2D连接无法建立成功时,如果 D2D模式指示 为第一 D2D连接建立模式, 则为源 UE建立普通连接, 从而可以当源 UE 发起的 D2D业务因为资源不足, 或者目标 UE与源 UE距离太远等原因无 法建立 D2D链路时, 为源 UE建立普通连接, 这样源 UE无须重新发起与 目标 UE之间的业务请求, 即可与目标 UE进行业务, 从而可以减小业务 时延, 提高用户的业务体验度; 由于无须反复进行两次业务, 因此也可以 减少运营商网络的信令开销。
图 8为本发明分组数据网关另一个实施例的结构示意图, 与图 7所示 的 PGW相比, 图 8所示的 PGW中, 第二建立模块 72可以包括: 承载绑 定子模块 721、 请求发送子模块 722和响应接收子模块 723;
其中, 承载绑定子模块 721 , 用于对第二接收模块 71接收的 PCC规 则进行 D2D承载绑定;
请求发送子模块 722, 用于当承载绑定子模块 721确定需要新建 D2D 承载时, 向基站发送承载建立请求; 当承载绑定子模块 721确定需要对已 有的 D2D承载进行修改时, 则向基站发送承载修改请求;
响应接收子模块 723 , 用于接收基站针对上述承载建立请求或上述承 载修改请求发送的拒绝响应;
承载绑定子模块 721 , 还用于根据上述 D2D模式指示, 重新对 PCC 规则进行普通承载绑定, 为源 UE建立普通承载或修改已有的普通承载。
进一步地, 本实施例中, 第二反馈模块 73 , 还用于在承载绑定子模块
721为源 UE建立普通承载或修改已有的普通承载之后, 通过 PCRF实体 向 AF实体或近距离业务服务器反馈为源 UE建立的连接为普通连接的信 自
承载绑定子模块 721 , 具体用于根据上述 D2D模式指示和目标 UE的 标识,将针对相同目标 UE的相同 D2D模式的业务绑定到相同承载进行传 输; 或者, 根据上述 D2D模式指示、 目标 UE的标识和源 UE的业务需求 中的业务服务质量需求, 将针对相同目标 UE且具有相同业务服务质量需 求和相同 D2D模式的业务绑定到相同承载进行传输。
上述 PGW可以减小业务时延, 提高用户的业务体验度, 进而可以减 少运营商网络的信令开销。
图 9为本发明策略与计费规则功能实体一个实施例的结构示意图, 本 实施例中的 PCRF实体可以实现本发明图 1所示实施例的流程, 如图 9所 示, 该 PCRF实体可以包括: 第三接收模块 91、 第三建立模块 92和第三 反馈模块 93;
其中, 第三接收模块 91 , 用于接收 AF实体或近距离业务服务器为源 UE请求的 D2D模式指示, 该 D2D模式指示包括第一 D2D连接建立模式 或第二 D2D连接建立模式; 以及将上述 D2D模式指示传递给第三建立模 块 92和第三反馈模块 93;
第三建立模块 92, 用于从第三接收模块 91接收上述 D2D模式指示, 根据 D2D模式指示, 当 D2D连接能够建立成功时, 为源 UE建立 D2D连 接; 当上述 D2D连接无法建立成功时, 如果 D2D模式指示为第一 D2D连 接建立模式, 则为源 UE建立普通连接;
第三反馈模块 93 , 用于从第三接收模块 91接收上述 D2D模式指示, 根据 D2D模式指示, 当 D2D连接无法建立成功时, 如果 D2D模式指示为 第二 D2D连接建立模式,则向 AF实体或近距离业务服务器反馈连接建立 失败响应。
其中,上述第一 D2D连接建立模式为源 UE要求优先建立 D2D连接, 也就是说, 源 UE要求优先建立 D2D连接, 但并非必须要求建立 D2D连 接, 当 D2D连接无法建立成功时, 可以为源 UE建立普通连接; 上述第二 D2D连接建立模式为源 UE要求必须建立 D2D连接, 也就是说, 源 UE要 求必须建立 D2D连接, 当 D2D连接无法建立成功时, 只能反馈连接建立 失败, 不为源 UE建立普通连接。
进一步地, 第三反馈模块 93 , 还用于当上述 D2D连接能够建立成功 时, 在第三建立模块 92为源 UE建立 D2D连接之后, 向 AF实体或近距 离业务服务器反馈为源 UE建立的连接为 D2D连接的信息。
本实施例中, 第三接收模块 91 , 具体用于接收 AF实体或近距离业务 服务器发送的业务请求; 该业务请求携带上述 D2D模式指示。
上述 PCRF实体中,第三接收模块 91接收 AF实体或近距离业务服务 器为源 UE请求的 D2D模式指示,该 D2D模式指示包括第一 D2D连接建 立模式或第二 D2D连接建立模式; 然后第三建立模块 92根据上述 D2D 模式指示, 当 D2D连接能够建立成功时, 为源 UE建立 D2D连接; 或者, 根据上述 D2D模式指示, 当 D2D连接无法建立成功时, 如果 D2D模式指 示为第一 D2D连接建立模式, 则为源 UE建立普通连接, 从而可以当源 UE发起的 D2D业务因为资源不足, 或者目标 UE与源 UE距离太远等原 因无法建立 D2D链路时, 为源 UE建立普通连接, 这样源 UE无须重新发 起与目标 UE之间的业务请求, 即可与目标 UE进行业务, 从而可以减小 业务时延, 提高用户的业务体验度; 由于无须反复进行两次业务, 因此也 可以减少运营商网络的信令开销。
图 10为本发明策略与计费规则功能实体另一个实施例的结构示意图, 与图 9所示的 PCRF实体相比, 不同之处在于, 图 10所示的 PCRF实体 中, 第三建立模块 92 可以包括: 规则制定子模块 921、 规则发送子模块 922和响应接收子模块 923;
本实施例中,第三接收模块 91接收的业务请求还携带源 UE的业务需 求和目标 UE的标识;
规则制定子模块 921 ,用于针对第三接收模块 91接收的业务请求制定 用于 D2D通信的 PCC规则, 以及将上述用于 D2D通信的 PCC规则传递 给规则发送子模块 922; 上述 PCC规则携带源 UE的业务需求和目标 UE 的标识;
规则发送子模块 922, 用于从规则制定子模块 921接收上述用于 D2D 通信的 PCC规则, 将上述用于 D2D通信的 PCC规则发送给 PGW, 以供 PGW对上述用于 D2D通信的 PCC规则进行 D2D ? 载绑定;
响应接收子模块 923 ,用于接收 PGW发送的用于 D2D通信的 PCC规 则执行失败响应;
规则制定子模块 921 , 还用于在响应接收子模块 923接收到上述执行 失败响应之后, 根据 D2D模式指示, 针对上述业务请求为源 UE制定用于 普通通信的 PCC规则, 以及将上述用于普通通信的 PCC规则传递给规则 发送子模块 922;
规则发送子模块 922, 还用于从规则制定子模块 921接收上述用于普 通通信的 PCC规则, 将上述用于普通通信的 PCC规则发送给 PGW, 以供 PGW根据上述用于普通通信的 PCC规则建立普通承载或修改已有的普通 承载, 以满足源 UE的业务需求。
进一步地, 第三反馈模块 93 , 还用于在第三建立模块 92为源 UE建 立普通连接之后, 向 AF实体或近距离业务服务器反馈为源 UE建立的连 接为普通连接的信息。
进一步地, 上述 PCRF实体还可以包括:
关系查询模块 94, 用于在规则制定子模块 921制定用于 D2D通信的 PCC规则之前, 根据上述业务请求携带的目标 UE的标识向近距离业务服 务器查询源 UE与目标 UE的临近关系, 从近距离业务服务器获得源 UE 与目标 UE具有临近关系。
上述 PCRF实体可以减小业务时延, 提高用户的业务体验度, 进而可 以减少运营商网络的信令开销。
图 11 为本发明应用层功能实体一个实施例的结构示意图, 本实施例 中的 AF实体可以实现本发明图 2所示实施例的流程, 如图 11所示, 该 AF实体可以包括:
第一发送模块 1101 , 用于向基站或 PGW或 PCRF实体发送 UE请求 的 D2D模式指示,上述 D2D模式指示包括第一 D2D连接建立模式或第二 D2D连接建立模式;以便基站或 PGW或 PCRF实体根据上述 D2D模式指 示, 当 D2D连接能够建立成功时, 为 UE建立 D2D连接; 或者, 根据上 述 D2D模式指示, 当上述 D2D连接无法建立成功时,如果 D2D模式指示 为第一 D2D连接建立模式, 则为 UE建立普通连接, 如果 D2D模式指示 为第二 D2D连接建立模式, 则反馈连接建立失败响应。
其中,上述第一 D2D连接建立模式为源 UE要求优先建立 D2D连接, 也就是说, 源 UE要求优先建立 D2D连接, 但并非必须要求建立 D2D连 接, 当 D2D连接无法建立成功时, 可以为源 UE建立普通连接; 上述第二 D2D连接建立模式为源 UE要求必须建立 D2D连接, 也就是说, 源 UE要 求必须建立 D2D连接, 当 D2D连接无法建立成功时, 只能反馈连接建立 失败, 不为源 UE建立普通连接。
进一步地, 本实施例的一种实现方式中, 上述 AF实体还可以包括: 第四接收模块 1102,用于在第一发送模块 1101发送上述 D2D模式指 示之后, 接收基站或 PGW或 PCRF实体反馈的为 UE建立的连接为 D2D 连接的信息, 上述为 UE建立的连接为 D2D连接的信息是基站或 PGW或 PCRF实体根据上述 D2D模式指示, 当 D2D连接能够建立成功时, 为 UE 建立 D2D连接之后反馈的。
进一步地, 第四接收模块 1102, 还用于在第一发送模块 1101发送上 述 D2D模式指示之后, 接收基站或 PGW或 PCRF实体反馈的为 UE建立 的连接为普通连接的信息, 上述为 UE建立的连接为普通连接的信息是基 站或 PGW或 PCRF实体根据上述 D2D模式指示, 当上述 D2D连接无法 建立成功时, 如果 D2D模式指示为第一 D2D连接建立模式, 则为 UE建 立普通连接之后反馈的。
上述 AF实体中, 第一发送模块 1101向基站或 PGW或 PCRF实体发 送 UE请求的 D2D模式指示,上述 D2D模式指示包括第一 D2D连接建立 模式或第二 D2D连接建立模式; 以便基站或 PGW或 PCRF实体根据上述 D2D模式指示, 当 D2D连接能够建立成功时, 为 UE建立 D2D连接; 或 者,根据上述 D2D模式指示,当上述 D2D连接无法建立成功时,如果 D2D 模式指示为第一 D2D连接建立模式, 则为 UE建立普通连接, 从而可以当 源 UE发起的 D2D业务因为资源不足, 或者目标 UE与源 UE距离太远等 原因无法建立 D2D链路时, 为源 UE建立普通连接, 这样源 UE无须重新 发起与目标 UE之间的业务请求, 即可与目标 UE进行业务, 从而可以减 小业务时延, 提高用户的业务体验度; 由于无须反复进行两次业务, 因此 也可以减少运营商网络的信令开销。
图 12为本发明近距离业务服务器一个实施例的结构示意图, 本实施 例中的近距离业务服务器可以实现本发明图 2所示实施例的流程,如图 12 所示, 该近距离业务服务器可以包括:
第二发送模块 1201 , 用于向基站或 PGW或 PCRF实体发送 UE请求 的 D2D模式指示,上述 D2D模式指示包括第一 D2D连接建立模式或第二 D2D连接建立模式;以便基站或 PGW或 PCRF实体根据上述 D2D模式指 示, 当 D2D连接能够建立成功时, 为 UE建立 D2D连接; 或者, 根据上 述 D2D模式指示, 当上述 D2D连接无法建立成功时,如果 D2D模式指示 为第一 D2D连接建立模式, 则为 UE建立普通连接, 如果 D2D模式指示 为第二 D2D连接建立模式, 则反馈连接建立失败响应。
其中,上述第一 D2D连接建立模式为源 UE要求优先建立 D2D连接, 也就是说, 源 UE要求优先建立 D2D连接, 但并非必须要求建立 D2D连 接, 当 D2D连接无法建立成功时, 可以为源 UE建立普通连接; 上述第二 D2D连接建立模式为源 UE要求必须建立 D2D连接, 也就是说, 源 UE要 求必须建立 D2D连接, 当 D2D连接无法建立成功时, 只能反馈连接建立 失败, 不为源 UE建立普通连接。
进一步地, 本实施例的一种实现方式中, 上述近距离业务服务器还可 以包括:
第五接收模块 1202,用于在第二发送模块 1201发送上述 D2D模式指 示之后, 接收基站或 PGW或 PCRF实体反馈的为 UE建立的连接为 D2D 连接的信息, 上述为 UE建立的连接为 D2D连接的信息是基站或 PGW或 PCRF实体根据上述 D2D模式指示, 当 D2D连接能够建立成功时, 为 UE 建立 D2D连接之后反馈的。
进一步地, 第五接收模块 1202, 还用于在第二发送模块 1201发送上 述 D2D模式指示之后, 接收基站或 PGW或 PCRF实体反馈的为 UE建立 的连接为普通连接的信息, 上述为 UE建立的连接为普通连接的信息是基 站或 PGW或 PCRF实体根据上述 D2D模式指示, 当上述 D2D连接无法 建立成功时, 如果 D2D模式指示为第一 D2D连接建立模式, 则为 UE建 立普通连接之后反馈的。
上述近距离业务服务器中,第二发送模块 1201向基站或 PGW或 PCRF 实体发送 UE请求的 D2D模式指示,上述 D2D模式包括第一 D2D连接建 立模式或第二 D2D连接建立模式; 以便基站或 PGW或 PCRF实体根据上 述 D2D模式指示, 当 D2D连接能够建立成功时, 为 UE建立 D2D连接; 或者, 根据上述 D2D模式指示, 当上述 D2D连接无法建立成功时, 如果 D2D模式指示为第一 D2D连接建立模式, 则为 UE建立普通连接, 从而 可以当源 UE发起的 D2D业务因为资源不足, 或者目标 UE与源 UE距离 太远等原因无法建立 D2D链路时, 为源 UE建立普通连接, 这样源 UE无 须重新发起与目标 UE之间的业务请求, 即可与目标 UE进行业务, 从而 可以减小业务时延,提高用户的业务体验度; 由于无须反复进行两次业务, 因此也可以减少运营商网络的信令开销。
图 13 为本发明计算机系统一个实施例的结构示意图, 本实施例中的 计算机系统可以实现本发明图 1所示实施例的流程。
如图 13所示, 该计算机系统可以包括: 至少一个处理器 1301 , 以及 存储器 1302,该存储器 1302用于存储可执行程序代码,其中,处理器 1301 代码对应的程序, 以用于:
接收 AF实体或近距离业务服务器为源 UE请求的 D2D模式指示, 上 述 D2D模式指示包括第一 D2D连接建立模式或第二 D2D连接建立模式; 根据上述 D2D模式指示,当 D2D连接能够建立成功时,为源 UE建立 D2D 连接; 或者, 根据上述 D2D模式指示, 当 D2D连接无法建立成功时, 如 果 D2D模式指示为第一 D2D连接建立模式, 则为源 UE建立普通连接, 如果 D2D模式指示为第二 D2D连接建立模式, 则向 AF实体或近距离业 务服务器反馈连接建立失败响应。
其中,上述第一 D2D连接建立模式为源 UE要求优先建立 D2D连接, 也就是说, 源 UE要求优先建立 D2D连接, 但并非必须要求建立 D2D连 接, 当 D2D连接无法建立成功时, 可以为源 UE建立普通连接; 上述第二 D2D连接建立模式为源 UE要求必须建立 D2D连接, 也就是说, 源 UE要 求必须建立 D2D连接, 当 D2D连接无法建立成功时, 只能反馈连接建立 失败, 不为源 UE建立普通连接。
在具体实现时, 上述计算机系统还可以包括用户接口 1303 和总线 1304。上述处理器 1301、存储器 1302和用户接口 1303均连接到总线 1304。
上述计算机系统接收 AF 实体或近距离业务服务器为源 UE 请求的 D2D模式指示,该 D2D模式指示包括第一 D2D连接建立模式或第二 D2D 连接建立模式; 然后根据上述 D2D模式指示, 当 D2D连接能够建立成功 时 , 为源 UE建立 D2D连接; 或者, 根据上述 D2D模式指示, 当 D2D连 接无法建立成功时, 如果 D2D模式指示为第一 D2D连接建立模式, 则为 源 UE建立普通连接, 从而可以当源 UE发起的 D2D业务因为资源不足, 或者目标 UE与源 UE距离太远等原因无法建立 D2D链路时, 为源 UE建 立普通连接, 这样源 UE无须重新发起与目标 UE之间的业务请求, 即可 与目标 UE进行业务, 从而可以减小业务时延, 提高用户的业务体验度; 由于无须反复进行两次业务, 因此也可以减少运营商网络的信令开销。
图 14为本发明计算机系统另一个实施例的结构示意图, 本实施例中 的计算机系统可以实现本发明图 2所示实施例的流程。
如图 14所示, 该计算机系统可以包括: 至少一个处理器 1401 , 以及 存储器 1402, 存储器 1402用于存储可执行程序代码, 其中, 处理器 1401 代码对应的程序, 以用于:
向基站或 PGW或 PCRF实体发送 UE请求的 D2D模式指示, 该 D2D 模式指示包括第一 D2D连接建立模式或第二 D2D连接建立模式; 以便基 站或 PGW或 PCRF实体根据上述 D2D模式指示, 当 D2D连接能够建立 成功时, 为 UE建立 D2D连接; 或者, 根据上述 D2D模式指示, 当 D2D 连接无法建立成功时, 如果 D2D模式指示为第一 D2D连接建立模式, 则 为 UE建立普通连接, 如果 D2D模式指示为第二 D2D连接建立模式, 则 反馈连接建立失败响应。
其中,上述第一 D2D连接建立模式为源 UE要求优先建立 D2D连接, 也就是说, 源 UE要求优先建立 D2D连接, 但并非必须要求建立 D2D连 接, 当 D2D连接无法建立成功时, 可以为源 UE建立普通连接; 上述第二 D2D连接建立模式为源 UE要求必须建立 D2D连接, 也就是说, 源 UE要 求必须建立 D2D连接, 当 D2D连接无法建立成功时, 只能反馈连接建立 失败, 不为源 UE建立普通连接。
在具体实现时, 上述计算机系统还可以包括用户接口 1403 和总线 1404。上述处理器 1401、存储器 1402和用户接口 1403均连接到总线 1404。
上述计算机系统向基站或 PGW或 PCRF实体发送 UE请求的 D2D模 式指示,上述 D2D模式指示包括第一 D2D连接建立模式或第二 D2D连接 建立模式; 以便基站或 PGW或 PCRF 实体根据上述 D2D模式指示, 当 D2D连接能够建立成功时, 为 UE建立 D2D连接; 或者, 根据上述 D2D 模式指示, 当上述 D2D连接无法建立成功时, 如果 D2D模式指示为第一 D2D连接建立模式,则为 UE建立普通连接,从而可以当源 UE发起的 D2D 业务因为资源不足, 或者目标 UE与源 UE距离太远等原因无法建立 D2D 链路时, 为源 UE建立普通连接, 这样源 UE无须重新发起与目标 UE之 间的业务请求, 即可与目标 UE进行业务, 从而可以减小业务时延, 提高 用户的业务体验度; 由于无须反复进行两次业务, 因此也可以减少运营商 网络的信令开销。
本领域技术人员可以理解附图只是一个优选实施例的示意图, 附图中 的模块或流程并不一定是实施本发明所必须的。
本领域技术人员可以理解实施例中的装置中的模块可以按照实施例 描述进行分布于实施例的装置中, 也可以进行相应变化位于不同于本实施 例的一个或多个装置中。 上述实施例的模块可以合并为一个模块, 也可以 进一步拆分成多个子模块。
最后应说明的是: 以上实施例仅用以说明本发明的技术方案, 而非对 其限制; 尽管参照前述实施例对本发明进行了详细的说明, 本领域的普通 技术人员应当理解: 其依然可以对前述各实施例所记载的技术方案进行修 改, 或者对其中部分技术特征进行等同替换; 而这些修改或者替换, 并不 使相应技术方案的本质脱离本发明各实施例技术方案的范围。 。

Claims

权 利 要 求 书
1、 一种承载建立方法, 其特征在于, 包括:
接收应用层功能实体或近距离业务服务器为源用户设备请求的设备 到设备 D2D模式指示,所述 D2D模式指示包括第一 D2D连接建立模式或 第二 D2D连接建立模式;
根据所述 D2D模式指示, 当所述 D2D连接能够建立成功时, 为所述 源用户设备建立 D2D连接; 或者,
根据所述 D2D模式指示, 当所述 D2D连接无法建立成功时, 如果所 述 D2D模式指示为第一 D2D连接建立模式, 则为所述源用户设备建立普 通连接; 如果所述 D2D模式指示为第二 D2D连接建立模式, 则向所述应 用层功能实体或所述近距离业务服务器反馈连接建立失败响应。
2、 根据权利要求 1所述的方法, 其特征在于, 所述当所述 D2D连接 能够建立成功时, 为所述源用户设备建立 D2D连接之后, 还包括:
向所述应用层功能实体或近距离业务服务器反馈为所述源用户设备 建立的连接为 D2D连接的信息。
3、 根据权利要求 1或 2所述的方法, 其特征在于, 所述接收应用层 功能实体或近距离业务服务器为源用户设备请求的设备到设备 D2D模式 指示包括:
基站接收分组数据网关发送的承载建立请求或承载修改请求, 所述承 载建立请求或所述承载修改请求携带所述 D2D模式指示;
所述承载建立请求是所述分组数据网关接收到策略与计费规则功能 实体发送的策略和计费控制规则, 对所述策略和计费控制规则进行 D2D 承载绑定, 确定需要新建 D2D承载之后发送给所述基站的;
所述承载修改请求是所述分组数据网关接收到策略与计费规则功能 实体发送的策略和计费控制规则, 对所述策略和计费控制规则进行 D2D 承载绑定, 确定需要对已有的 D2D承载进行修改之后发送给所述基站的; 所述策略和计费控制规则携带所述 D2D模式指示, 所述策略和计费 控制规则还携带所述源用户设备的业务需求和目标用户设备的标识。
4、 根据权利要求 3所述的方法, 其特征在于, 所述当所述 D2D连接 无法建立成功时, 如果所述 D2D模式指示为第一 D2D连接建立模式, 则 为所述源用户设备建立普通连接包括:
所述基站接收到承载建立请求之后为所述源用户设备分配无线资源 以建立 D2D承载,如果所述 D2D承载无法建立成功, 则根据所述 D2D模 式指示, 为所述源用户设备建立普通承载; 或者,
所述基站接收到承载修改请求之后为所述源用户设备分配无线资源 以修改已有的 D2D承载, 如果所述已有的 D2D承载无法修改成功, 则根 据所述 D2D模式指示, 为所述源用户设备修改已有的普通承载。
5、 根据权利要求 4所述的方法, 其特征在于, 所述为所述源用户设 备建立普通承载或者所述为所述源用户设备修改已有的普通承载之后, 还 包括:
所述基站通过网络向所述应用层功能实体或所述近距离业务服务器 反馈为所述源用户设备建立的连接为普通连接的信息。
6、 根据权利要求 3所述的方法, 其特征在于, 所述根据所述 D2D模 式指示, 当所述 D2D连接无法建立成功时, 如果所述 D2D模式指示为第 二 D2D 连接建立模式, 则向所述应用层功能实体或所述近距离业务服务 器反馈连接建立失败响应包括:
所述基站接收到所述承载建立请求之后, 为所述源用户设备分配无线 资源以建立 D2D承载,如果所述 D2D承载无法建立成功,则根据所述 D2D 模式指示, 拒绝所述承载建立请求, 并向所述应用层功能实体或所述近距 离业务服务器反馈连接建立失败响应; 或者,
所述基站接收到所述承载修改请求之后, 为所述源用户设备分配无线 资源以修改已有的 D2D承载, 如果所述已有的 D2D承载无法修改成功, 则根据所述 D2D模式指示, 拒绝所述承载修改请求, 并向所述应用层功 能实体或所述近距离业务服务器反馈连接建立失败响应。
7、 根据权利要求 1或 2所述的方法, 其特征在于, 所述接收应用层 功能实体或近距离业务服务器为源用户设备请求的设备到设备 D2D模式 指示包括:
分组数据网关接收策略与计费规则功能实体发送的策略和计费控制 规则, 所述策略和计费控制规则携带所述 D2D模式指示, 所述策略和计 费控制规则还携带所述源用户设备的业务需求和目标用户设备的标识。
8、 根据权利要求 7所述的方法, 其特征在于, 所述当所述 D2D连接 无法建立成功时, 如果所述 D2D模式指示为第一 D2D连接建立模式, 则 为所述源用户设备建立普通连接包括:
所述分组数据网关对所述策略和计费控制规则进行 D2D承载绑定, 如果确定需要新建 D2D承载, 则向基站发送承载建立请求; 如果确定需 要对已有的 D2D承载进行修改, 则向基站发送承载修改请求;
所述分组数据网关接收所述基站针对所述承载建立请求或所述承载 修改请求发送的拒绝响应;
所述分组数据网关根据所述 D2D模式指示, 重新对所述策略和计费 控制规则进行普通承载绑定, 为所述源用户设备建立普通承载或修改已有 的普通 ? 载。
9、 根据权利要求 8 所述的方法, 其特征在于, 所述为所述源用户设 备建立普通承载或修改已有的普通承载之后, 还包括:
所述分组数据网关通过所述策略与计费规则功能实体向所述应用层 功能实体或所述近距离业务服务器反馈为所述源用户设备建立的连接为 普通连接的信息。
10、 根据权利要求 7 所述的方法, 其特征在于, 所述根据所述 D2D 模式指示, 当所述 D2D连接无法建立成功时, 如果所述 D2D模式指示为 第二 D2D连接建立模式, 则向所述应用层功能实体或所述近距离业务服 务器反馈连接建立失败响应包括:
所述分组数据网关对所述策略和计费控制规则进行 D2D承载绑定, 如果确定需要新建 D2D承载, 则向基站发送承载建立请求; 如果确定需 要对已有的 D2D承载进行修改, 则向基站发送承载修改请求;
所述分组数据网关接收所述基站针对所述承载建立请求或所述承载 修改请求发送的拒绝响应;
所述分组数据网关根据所述 D2D模式指示, 向所述策略与计费规则 功能实体反馈所述策略和计费控制规则执行失败, 以便所述策略与计费规 则功能实体向所述应用层功能实体或所述近距离业务服务器反馈连接建 立失败响应。
11、 根据权利要求 3或 7所述的方法, 其特征在于, 所述策略和计费 控制规则是所述策略与计费规则功能实体接收到所述应用层功能实体或 所述近距离业务服务器发送的业务请求之后, 针对所述业务请求制定并发 送给所述分组数据网关的, 其中, 所述业务请求携带所述源用户设备的业 务需求、 目标用户设备的标识和所述 D2D模式指示; 或者,
所述策略和计费控制规则是所述策略与计费规则功能实体接收到所 述应用层功能实体或所述近距离业务服务器发送的业务请求, 根据所述业 务请求携带的目标用户设备的标识向近距离业务服务器查询所述源用户 设备与所述目标用户设备的临近关系, 在从所述近距离业务服务器获得所 述源用户设备与所述目标用户设备具有临近关系之后, 针对所述业务请求 制定并发送给所述分组数据网关的, 其中, 所述业务请求还携带所述源用 户设备的业务需求和所述 D2D模式指示。
12、 根据权利要求 3、 8或 10所述的方法, 其特征在于, 所述分组数 据网关对所述策略和计费控制规则进行 D2D承载绑定包括:
所述分组数据网关根据所述 D2D模式指示和所述目标用户设备的标 识, 将针对相同目标用户设备的相同 D2D模式的业务绑定到相同承载进 行传输; 或者,
所述分组数据网关根据所述 D2D模式指示、 所述目标用户设备的标 识和所述源用户设备的业务需求中的业务服务质量需求, 将针对相同目标 用户设备且具有相同业务服务质量需求和相同 D2D模式的业务绑定到相 同承载进行传输。
13、 根据权利要求 1或 2所述的方法, 其特征在于, 所述接收应用层 功能实体或近距离业务服务器为源用户设备请求的设备到设备 D2D模式 指示包括:
所述策略与计费规则功能实体接收所述应用层功能实体或所述近距 离业务服务器发送的业务请求;
所述业务请求携带所述 D2D模式指示。
14、 根据权利要求 13 所述的方法, 其特征在于, 所述业务请求还携 带所述源用户设备的业务需求和目标用户设备的标识;
所述当所述 D2D连接无法建立成功时, 如果所述 D2D模式指示为第 一 D2D连接建立模式, 则为所述源用户设备建立普通连接包括: 所述策略与计费规则功能实体针对所述业务请求制定用于 D2D通信 的策略和计费控制规则, 所述策略和计费控制规则携带所述源用户设备的 业务需求和目标用户设备的标识;
所述策略与计费规则功能实体将所述用于 D2D通信的策略和计费控 制规则发送给分组数据网关, 以供所述分组数据网关对所述用于 D2D通 信的策略和计费控制规则进行 D2D承载绑定;
所述策略与计费规则功能实体接收所述分组数据网关发送的所述用 于 D2D通信的策略和计费控制规则执行失败响应;
所述策略与计费规则功能实体根据所述 D2D模式指示, 针对所述业 务请求为所述源用户设备制定用于普通通信的策略和计费控制规则, 将所 述用于普通通信的策略和计费控制规则发送给所述分组数据网关, 以供所 述分组数据网关根据所述用于普通通信的策略和计费控制规则建立普通 承载或修改已有的普通承载, 以满足所述源用户设备的业务需求。
15、 根据权利要求 14所述的方法, 其特征在于, 所述为所述源用户 设备建立普通连接之后, 还包括:
所述策略与计费规则功能实体向所述应用层功能实体或所述近距离 业务服务器反馈为所述源用户设备建立的连接为普通连接的信息。
16、 根据权利要求 14所述的方法, 其特征在于, 所述策略与计费规 则功能实体针对所述业务请求制定用于 D2D通信的策略和计费控制规则 之前, 还包括:
所述策略与计费规则功能实体根据所述业务请求携带的目标用户设 备的标识向近距离业务服务器查询所述源用户设备与所述目标用户设备 的临近关系, 从所述近距离业务服务器获得所述源用户设备与所述目标用 户设备具有临近关系。
17、 根据权利要求 14-16任意一项所述的方法, 其特征在于, 所述用 于 D2D通信的策略和计费控制规则还携带 D2D指示,所述 D2D指示用于 指示携带所述 D2D指示的策略和计费控制规则用于 D2D通信; 或者, 所 述策略与计费规则功能实体为所述用于 D2D通信的策略和计费控制规则 定义新的名称, 以指示具有所述新的名称的规则为用于 D2D通信的策略 和计费控制规则, 则具有所述新的名称的规则中不需携带 D2D指示。
18、 根据权利要求 13 所述的方法, 其特征在于, 所述业务请求还携 带所述源用户设备的业务需求和目标用户设备的标识;
所述根据所述 D2D模式指示, 当所述 D2D连接无法建立成功时, 如 果所述 D2D模式指示为第二 D2D连接建立模式, 则向所述应用层功能实 体或所述近距离业务服务器反馈连接建立失败响应包括:
所述策略与计费规则功能实体针对所述业务请求制定用于 D2D通信 的策略和计费控制规则, 所述策略和计费控制规则携带所述源用户设备的 业务需求和目标用户设备的标识;
所述策略与计费规则功能实体将所述用于 D2D通信的策略和计费控 制规则发送给分组数据网关, 以供所述分组数据网关对所述用于 D2D通 信的策略和计费控制规则进行 D2D承载绑定;
所述策略与计费规则功能实体接收所述分组数据网关发送的所述用 于 D2D通信的策略和计费控制规则执行失败响应;
所述策略与计费规则功能实体根据所述 D2D模式指示, 向所述应用 层功能实体或所述近距离业务服务器反馈所述 D2D 连接建立失败, 以便 所述应用层功能实体或所述近距离业务服务器向所述源用户设备反馈连 接建立失败响应。
19、 一种承载建立方法, 其特征在于, 包括:
向基站或分组数据网关或策略与计费规则功能实体发送用户设备请 求的设备到设备 D2D模式指示,所述 D2D模式指示包括第一 D2D连接建 立模式或第二 D2D 连接建立模式; 以便所述基站或所述分组数据网关或 所述策略与计费规则功能实体根据所述 D2D模式指示, 当所述 D2D连接 能够建立成功时, 为所述用户设备建立 D2D连接; 或者, 根据所述 D2D 模式指示, 当所述 D2D连接无法建立成功时, 如果所述 D2D模式指示为 第一 D2D连接建立模式,则为所述用户设备建立普通连接,如果所述 D2D 模式指示为第二 D2D连接建立模式, 则反馈连接建立失败响应。
20、 根据权利要求 19所述的方法, 其特征在于, 所述向基站或分组 数据网关或策略与计费规则功能实体发送用户设备请求的设备到设备 D2D模式指示之后, 还包括:
接收所述基站或所述分组数据网关或所述策略与计费规则功能实体 反馈的为所述用户设备建立的连接为 D2D 连接的信息, 所述为所述用户 设备建立的连接为 D2D 连接的信息是所述基站或所述分组数据网关或所 述策略与计费规则功能实体根据所述 D2D模式指示, 当所述 D2D连接能 够建立成功时, 为所述用户设备建立 D2D连接之后反馈的。
21、 根据权利要求 19所述的方法, 其特征在于, 所述向基站或分组 数据网关或策略与计费规则功能实体发送用户设备请求的设备到设备 D2D模式指示之后, 还包括:
接收所述基站或所述分组数据网关或所述策略与计费规则功能实体 反馈的为所述用户设备建立的连接为普通连接的信息, 所述为所述用户设 备建立的连接为普通连接的信息是所述基站或所述分组数据网关或所述 策略与计费规则功能实体根据所述 D2D模式指示, 当所述 D2D连接无法 建立成功时, 如果所述 D2D模式指示为第一 D2D连接建立模式, 则为所 述用户设备建立普通连接之后反馈的。
22、 一种基站, 其特征在于, 包括:
第一接收模块, 用于接收应用层功能实体或近距离业务服务器为源用 户设备请求的设备到设备 D2D模式指示, 所述 D2D模式指示包括第一 D2D连接建立模式或第二 D2D连接建立模式; 以及将所述 D2D模式指示 传递给第一建立模块和第一反馈模块;
所述第一建立模块, 用于从所述第一接收模块接收所述 D2D模式指 示, 根据所述 D2D模式指示, 当所述 D2D连接能够建立成功时, 为所述 源用户设备建立 D2D连接; 当所述 D2D连接无法建立成功时, 如果所述 D2D模式指示为第一 D2D连接建立模式, 则为所述源用户设备建立普通 连接;
所述第一反馈模块, 用于从所述第一接收模块接收所述 D2D模式指 示, 根据所述 D2D模式指示, 当所述 D2D连接无法建立成功时, 如果所 述 D2D模式指示为第二 D2D连接建立模式, 则向所述应用层功能实体或 所述近距离业务服务器反馈连接建立失败响应。
23、 根据权利要求 22所述的基站, 其特征在于,
所述第一反馈模块, 还用于当所述 D2D连接能够建立成功时, 在所 述第一建立模块为所述源用户设备建立 D2D连接之后, 向所述应用层功 能实体或近距离业务服务器反馈为所述源用户设备建立的连接为 D2D 连 接的信息。
24、 根据权利要求 22或 23所述的基站, 其特征在于,
所述第一接收模块, 具体用于接收分组数据网关发送的承载建立请求 或承载修改请求, 所述承载建立请求或所述承载修改请求携带所述 D2D 模式指示;
所述承载建立请求是所述分组数据网关接收到策略与计费规则功能 实体发送的策略和计费控制规则, 对所述策略和计费控制规则进行 D2D 承载绑定, 确定需要新建 D2D承载之后发送给所述基站的;
所述承载修改请求是所述分组数据网关接收到策略与计费规则功能 实体发送的策略和计费控制规则, 对所述策略和计费控制规则进行 D2D 承载绑定, 确定需要对已有的 D2D承载进行修改之后发送给所述基站的; 所述策略和计费控制规则携带所述 D2D模式指示, 所述策略和计费 控制规则还携带所述源用户设备的业务需求和目标用户设备的标识。
25、 根据权利要求 24所述的基站, 其特征在于,
所述第一建立模块, 具体用于在所述第一接收模块接收到承载建立请 求之后为所述源用户设备分配无线资源以建立 D2D承载, 如果所述 D2D 承载无法建立成功, 则根据所述 D2D模式指示, 为所述源用户设备建立 普通承载; 或者, 在所述第一接收模块接收到承载修改请求之后为所述源 用户设备分配无线资源以修改已有的 D2D承载, 如果所述已有的 D2D承 载无法修改成功, 则根据所述 D2D模式指示, 为所述源用户设备修改已 有的普通承载。
26、 根据权利要求 25所述的基站, 其特征在于,
所述第一反馈模块, 还用于在所述第一建立模块为所述源用户设备建 立普通承载或者为所述源用户设备修改已有的普通承载之后, 通过网络向 所述应用层功能实体或所述近距离业务服务器反馈为所述源用户设备建 立的连接为普通连接的信息。
27、 一种分组数据网关, 其特征在于, 包括:
第二接收模块, 用于接收应用层功能实体或近距离业务服务器为源用 户设备请求的设备到设备 D2D模式指示, 所述 D2D模式指示包括第一 D2D连接建立模式或第二 D2D连接建立模式; 以及将所述 D2D模式指示 传递给第二建立模块和第二反馈模块;
所述第二建立模块, 用于从所述第二接收模块接收所述 D2D模式指 示, 根据所述 D2D模式指示, 当所述 D2D连接能够建立成功时, 为所述 源用户设备建立 D2D连接; 当所述 D2D连接无法建立成功时, 如果所述 D2D模式指示为第一 D2D连接建立模式, 则为所述源用户设备建立普通 连接;
所述第二反馈模块, 用于从所述第二接收模块接收所述 D2D模式指 示, 根据所述 D2D模式指示, 当所述 D2D连接无法建立成功时, 如果所 述 D2D模式指示为第二 D2D连接建立模式, 则向所述应用层功能实体或 所述近距离业务服务器反馈连接建立失败响应。
28、 根据权利要求 27所述的分组数据网关, 其特征在于,
所述第二反馈模块, 还用于当所述 D2D连接能够建立成功时, 在所 述第二建立模块为所述源用户设备建立 D2D连接之后, 向所述应用层功 能实体或近距离业务服务器反馈为所述源用户设备建立的连接为 D2D 连 接的信息。
29、 根据权利要求 27或 28所述的分组数据网关, 其特征在于, 所述第二接收模块, 具体用于接收策略与计费规则功能实体发送的策 略和计费控制规则; 所述策略和计费控制规则携带所述 D2D模式指示, 所述策略和计费控制规则还携带所述源用户设备的业务需求和目标用户 设备的标识。
30、 根据权利要求 29所述的分组数据网关, 其特征在于, 所述第二 建立模块包括:
承载绑定子模块, 用于对所述第二接收模块接收的所述策略和计费控 制规则进行 D2D承载绑定;
请求发送子模块, 用于当所述承载绑定子模块确定需要新建 D2D承 载时, 向基站发送承载建立请求; 当所述承载绑定子模块确定需要对已有 的 D2D承载进行修改时, 则向基站发送承载修改请求;
响应接收子模块, 用于接收所述基站针对所述承载建立请求或所述承 载修改请求发送的拒绝响应; 所述承载绑定子模块, 还用于根据所述 D2D模式指示, 重新对所述 策略和计费控制规则进行普通承载绑定, 为所述源用户设备建立普通承载 或修改已有的普通承载。
31、 根据权利要求 30所述的分组数据网关, 其特征在于,
所述第二反馈模块, 还用于在所述承载绑定子模块为所述源用户设备 建立普通承载或修改已有的普通承载之后, 通过所述策略与计费规则功能 实体向所述应用层功能实体或所述近距离业务服务器反馈为所述源用户 设备建立的连接为普通连接的信息。
32、 根据权利要求 30所述的分组数据网关, 其特征在于,
所述承载绑定子模块, 具体用于根据所述 D2D模式指示和所述目标 用户设备的标识, 将针对相同目标用户设备的相同 D2D模式的业务绑定 到相同承载进行传输; 或者, 根据所述 D2D模式指示、 所述目标用户设 备的标识和所述源用户设备的业务需求中的业务服务质量需求, 将针对相 同目标用户设备且具有相同业务服务质量需求和相同 D2D模式的业务绑 定到相同承载进行传输。
33、 一种策略与计费规则功能实体, 其特征在于, 包括:
第三接收模块, 用于接收应用层功能实体或近距离业务服务器为源用 户设备请求的设备到设备 D2D模式指示, 所述 D2D模式指示包括第一 D2D连接建立模式或第二 D2D连接建立模式; 以及将所述 D2D模式指示 传递给第三建立模块和第三反馈模块;
所述第三建立模块, 用于从所述第三接收模块接收所述 D2D模式指 示, 根据所述 D2D模式指示, 当所述 D2D连接能够建立成功时, 为所述 源用户设备建立 D2D连接; 当所述 D2D连接无法建立成功时, 如果所述 D2D模式指示为第一 D2D连接建立模式, 则为所述源用户设备建立普通 连接;
所述第三反馈模块, 用于从所述第三接收模块接收所述 D2D模式指 示, 根据所述 D2D模式指示, 当所述 D2D连接无法建立成功时, 如果所 述 D2D模式指示为第二 D2D连接建立模式, 则向所述应用层功能实体或 所述近距离业务服务器反馈连接建立失败响应。
34、 根据权利要求 33所述的策略与计费规则功能实体, 其特征在于, 所述第三反馈模块, 还用于当所述 D2D连接能够建立成功时, 在所 述第三建立模块为所述源用户设备建立 D2D连接之后, 向所述应用层功 能实体或近距离业务服务器反馈为所述源用户设备建立的连接为 D2D 连 接的信息。
35、 根据权利要求 33或 34所述的策略与计费规则功能实体, 其特征 在于,
所述第三接收模块, 具体用于接收所述应用层功能实体或所述近距离 业务服务器发送的业务请求; 所述业务请求携带所述 D2D模式指示。
36、 根据权利要求 35所述的策略与计费规则功能实体, 其特征在于, 所述第三建立模块包括: 规则制定子模块、 规则发送子模块和响应接收子 模块;
所述第三接收模块接收的所述业务请求还携带所述源用户设备的业 务需求和目标用户设备的标识;
所述规则制定子模块, 用于针对所述第三接收模块接收的所述业务请 求制定用于 D2D通信的策略和计费控制规则, 以及将所述用于 D2D通信 的策略和计费控制规则传递给所述规则发送子模块; 所述策略和计费控制 规则携带所述源用户设备的业务需求和目标用户设备的标识;
所述规则发送子模块,用于从所述规则制定子模块接收所述用于 D2D 通信的策略和计费控制规则, 将所述用于 D2D通信的策略和计费控制规 则发送给分组数据网关, 以供所述分组数据网关对所述用于 D2D通信的 策略和计费控制规则进行 D2D承载绑定;
所述响应接收子模块, 用于接收所述分组数据网关发送的所述用于 D2D通信的策略和计费控制规则执行失败响应;
所述规则制定子模块, 还用于在所述响应接收子模块接收到所述执行 失败响应之后, 根据所述 D2D模式指示, 针对所述业务请求为所述源用 户设备制定用于普通通信的策略和计费控制规则, 以及将所述用于普通通 信的策略和计费控制规则传递给所述规则发送子模块;
所述规则发送子模块, 还用于从所述规则制定子模块接收所述用于普 通通信的策略和计费控制规则, 将所述用于普通通信的策略和计费控制规 则发送给所述分组数据网关, 以供所述分组数据网关根据所述用于普通通 信的策略和计费控制规则建立普通承载或修改已有的普通承载, 以满足所 述源用户设备的业务需求。
37、 根据权利要求 36所述的策略与计费规则功能实体, 其特征在于, 所述第三反馈模块, 还用于在所述第三建立模块为所述源用户设备建 立普通连接之后, 向所述应用层功能实体或所述近距离业务服务器反馈为 所述源用户设备建立的连接为普通连接的信息。
38、 根据权利要求 36所述的策略与计费规则功能实体, 其特征在于, 还包括:
关系查询模块, 用于在所述规则制定子模块制定用于 D2D通信的策 略和计费控制规则之前, 根据所述业务请求携带的目标用户设备的标识向 近距离业务服务器查询所述源用户设备与所述目标用户设备的临近关系, 从所述近距离业务服务器获得所述源用户设备与所述目标用户设备具有 临近关系。
39、 一种应用层功能实体, 其特征在于, 包括:
第一发送模块, 用于向基站或分组数据网关或策略与计费规则功能实 体发送用户设备请求的设备到设备 D2D模式指示, 所述 D2D模式指示包 括第一 D2D连接建立模式或第二 D2D连接建立模式; 以便所述基站或所 述分组数据网关或所述策略与计费规则功能实体根据所述 D2D模式指示 , 当所述 D2D连接能够建立成功时, 为所述用户设备建立 D2D连接; 或者, 根据所述 D2D模式指示,当所述 D2D连接无法建立成功时,如果所述 D2D 模式指示为第一 D2D连接建立模式, 则为所述用户设备建立普通连接, 如果所述 D2D模式指示为第二 D2D连接建立模式, 则反馈连接建立失败 响应。
40、 根据权利要求 39所述的应用层功能实体, 其特征在于, 还包括: 第四接收模块, 用于在所述第一发送模块发送所述 D2D模式指示之 后, 接收所述基站或所述分组数据网关或所述策略与计费规则功能实体反 馈的为所述用户设备建立的连接为 D2D 连接的信息, 所述为所述用户设 备建立的连接为 D2D连接的信息是所述基站或所述分组数据网关或所述 策略与计费规则功能实体根据所述 D2D模式指示, 当所述 D2D连接能够 建立成功时, 为所述用户设备建立 D2D连接之后反馈的。
41、 根据权利要求 40所述的应用层功能实体, 其特征在于, 所述第四接收模块, 还用于在所述第一发送模块发送所述 D2D模式 指示之后, 接收所述基站或所述分组数据网关或所述策略与计费规则功能 实体反馈的为所述用户设备建立的连接为普通连接的信息, 所述为所述用 户设备建立的连接为普通连接的信息是所述基站或所述分组数据网关或 所述策略与计费规则功能实体根据所述 D2D模式指示, 当所述 D2D连接 无法建立成功时, 如果所述 D2D模式指示为第一 D2D连接建立模式, 则 为所述用户设备建立普通连接之后反馈的。
42、 一种近距离业务服务器, 其特征在于, 包括:
第二发送模块, 用于向基站或分组数据网关或策略与计费规则功能实 体发送用户设备请求的设备到设备 D2D模式指示, 所述 D2D模式指示包 括第一 D2D连接建立模式或第二 D2D连接建立模式; 以便所述基站或所 述分组数据网关或所述策略与计费规则功能实体根据所述 D2D模式指示 , 当所述 D2D连接能够建立成功时, 为所述用户设备建立 D2D连接; 或者, 根据所述 D2D模式指示,当所述 D2D连接无法建立成功时,如果所述 D2D 模式指示为第一 D2D连接建立模式, 则为所述用户设备建立普通连接, 如果所述 D2D模式指示为第二 D2D连接建立模式, 则反馈连接建立失败 响应。
43、 根据权利要求 42所述的近距离业务服务器, 其特征在于, 还包 括:
第五接收模块, 用于在所述第二发送模块发送所述 D2D模式指示之 后, 接收所述基站或所述分组数据网关或所述策略与计费规则功能实体反 馈的为所述用户设备建立的连接为 D2D 连接的信息, 所述为所述用户设 备建立的连接为 D2D连接的信息是所述基站或所述分组数据网关或所述 策略与计费规则功能实体根据所述 D2D模式指示, 当所述 D2D连接能够 建立成功时, 为所述用户设备建立 D2D连接之后反馈的。
44、 根据权利要求 43所述的近距离业务服务器, 其特征在于, 所述第五接收模块, 还用于在所述第二发送模块发送所述 D2D模式 指示之后, 接收所述基站或所述分组数据网关或所述策略与计费规则功能 实体反馈的为所述用户设备建立的连接为普通连接的信息, 所述为所述用 户设备建立的连接为普通连接的信息是所述基站或所述分组数据网关或 所述策略与计费规则功能实体根据所述 D2D模式指示, 当所述 D2D连接 无法建立成功时, 如果所述 D2D模式指示为第一 D2D连接建立模式, 则 为所述用户设备建立普通连接之后反馈的。
45、 一种计算机系统, 其特征在于, 包括: 至少一个处理器, 以及存 储器, 所述存储器用于存储可执行程序代码, 其中, 所述处理器通过读取 的程序, 以用于:
接收应用层功能实体或近距离业务服务器为源用户设备请求的设备 到设备 D2D模式指示,所述 D2D模式指示包括第一 D2D连接建立模式或 第二 D2D连接建立模式;
根据所述 D2D模式指示, 当所述 D2D连接能够建立成功时, 为所述 源用户设备建立 D2D连接; 或者,
根据所述 D2D模式指示, 当所述 D2D连接无法建立成功时, 如果所 述 D2D模式指示为第一 D2D连接建立模式, 则为所述源用户设备建立普 通连接, 如果所述 D2D模式指示为第二 D2D连接建立模式, 则向所述应 用层功能实体或所述近距离业务服务器反馈连接建立失败响应。
46、 一种计算机系统, 其特征在于, 包括: 至少一个处理器, 以及存 储器, 所述存储器用于存储可执行程序代码, 其中, 所述处理器通过读取 的程序, 以用于:
向基站或分组数据网关或策略与计费规则功能实体发送用户设备请 求的设备到设备 D2D模式指示,所述 D2D模式指示包括第一 D2D连接建 立模式或第二 D2D 连接建立模式; 以便所述基站或所述分组数据网关或 所述策略与计费规则功能实体根据所述 D2D模式指示, 当所述 D2D连接 能够建立成功时, 为所述用户设备建立 D2D连接; 或者, 根据所述 D2D 模式指示, 当所述 D2D连接无法建立成功时, 如果所述 D2D模式指示为 第一 D2D连接建立模式,则为所述用户设备建立普通连接,如果所述 D2D 模式指示为第二 D2D连接建立模式, 则反馈连接建立失败响应。
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