WO2017032176A1 - 设备到设备d2d授权信息的获取方法及装置 - Google Patents

设备到设备d2d授权信息的获取方法及装置 Download PDF

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WO2017032176A1
WO2017032176A1 PCT/CN2016/089448 CN2016089448W WO2017032176A1 WO 2017032176 A1 WO2017032176 A1 WO 2017032176A1 CN 2016089448 W CN2016089448 W CN 2016089448W WO 2017032176 A1 WO2017032176 A1 WO 2017032176A1
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authorization information
senb
authorization
menb
mme
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English (en)
French (fr)
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高音
吴蕴璐
陈琳
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中兴通讯股份有限公司
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Priority to EP16838436.0A priority Critical patent/EP3340662B1/en
Publication of WO2017032176A1 publication Critical patent/WO2017032176A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/27—Control channels or signalling for resource management between access points

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  • This document relates to, but is not limited to, the field of communications, and in particular, to a method and apparatus for acquiring device-to-device D2D authorization information.
  • the Long Term Evolution (LTE) system includes: a Mobility Management Entity (MME), a Serving GetWay (SGW), and a user equipment or user equipment (User Equipment, referred to as A UU interface is between the UE and the eNodeB (the eNB for short), and an S1-MME (S1 for the control plane) interface between the eNB and the MME, and an S1-U interface between the eNB and the SGW, and X2 between the eNBs.
  • -U X2-User plane
  • X2-C X2-Control plane
  • the protocol stack of the S1-MME interface is divided into the following protocol layers from the bottom to the top: L1 protocol, L2 protocol, Internet Protocol (IP), and Stream Control Transmission Protocol (Stream Control Transmission Protocol). It is abbreviated as SCTP), S1 Application Protocol (S1-Application Protocol, S1-AP for short).
  • the protocol stack of the S1-U interface is divided into the following protocol layers from the bottom to the top: L1 protocol, L2 protocol, user data protocol/Internet protocol (UDP/IP), GPRS tunneling protocol-user plane (GPRS Tunneling) Protocol-User plane, referred to as GTP-U.
  • FIG. 1 is a schematic diagram of an overall architecture of a small cell base station system.
  • the architecture includes: a Mobility Management Entity (MME) and a Serving Gateway (Serving).
  • MME Mobility Management Entity
  • Serving Serving Gateway
  • the UW interface is between the user equipment or the user equipment (the user equipment, abbreviated as the UE) and the eNodeB (the eNB for short), and the S1-MME (S1 for the control plane) between the MeNB and the MME.
  • the interface, the MeNB, the SeNB, and the SGW are S1-U interfaces, and the eNBs are X2 interfaces.
  • the user data can be delivered from the core network to the user through the MeNB, or can be delivered to the user through the SeNB from the core network. After the user accesses the MeNB, the dual connection can be implemented by adding, modifying, and deleting the SeNB.
  • D2D Device-to-Device
  • D2D technology can work in licensed or unlicensed bands, allowing multiple D2D-enabled user equipment (D2D User Equipment, D2D UE) to directly discover without network infrastructure or network infrastructure. And / or direct communication.
  • D2D technology usually includes D2D discovery technology and D2D communication technology:
  • D2D discovery technology refers to determining and/or determining that two or more D2D user devices are adjacent to each other (for example, within a range in which D2D direct communication is possible) or for determining and/or determining a first user device. Technology adjacent to the second user equipment.
  • D2D communication technology refers to a technology in which some or all of the communication data between D2D user equipments can communicate directly without going through the network infrastructure.
  • D2D communication can multiplex cellular communication resources.
  • D2D communication resources are usually scheduled and allocated by the base station, which can improve resource reuse efficiency, and ensure network side control of D2D communication and D2D communication and cellular.
  • the effect of interference coordination between communications For the same UE, if it supports D2D function, it may simultaneously perform D2D with another D2D UE. Communication and cellular communication with the base station.
  • the base station acquires D2D authorization information of the UE by using an initial context setup request (INITIAL CONTEXT SETUP REQUEST) and a UE CONTEXT MODIFICATION REQUEST message, and at the same time, in the handover process, the target base station is switched for S1.
  • Obtaining D2D authorization information of the UE by using an S1 handover request (S1HANDOVER REQUEST) message.
  • S1HANDOVER REQUEST S1 handover request
  • the target base station acquires D2D authorization information of the UE by using an X2HANDOVER REQUEST message and a PATH SWITCH REQUEST ACKNOWLEDGE message.
  • the D2D authorization information of the UE provides the UE's authorization status information for the ProSe service (including ProSe direct discovery and ProSe direct communication).
  • the embodiment of the invention provides a device-to-device D2D authorization information acquisition method and device, which enables the secondary base station to obtain the D2D authorization information of the UE in the case of dual connectivity of the UE.
  • a method for acquiring device-to-device D2D authorization information including: the secondary base station SeNB acquires device-to-device D2D authorization information of the terminal UE from the primary base station MeNB through an X2 interface procedure.
  • the D2D authorization information includes at least one of the following: a D2D communication authorization, a D2D discovery authorization, a relay terminal Relay UE authorization, a remote terminal remote UE authorization, and one or more public land mobile network PLMNs corresponding to the authorization.
  • the X2 interface process includes: an SeNB adding process or a SeNB modification process.
  • the method further includes:
  • the SeNB allocates a D2D resource to the UE according to the D2D authorization information.
  • a device-to-device D2D authorization information includes: the primary base station MeNB acquires the device-to-device D2D authorization information of the terminal UE from the mobility management entity MME; the MeNB provides the D2D authorization information to the secondary base station SeNB by using an X2 interface process, where the SeNB is configured according to the The D2D grant information allocates D2D resources to the UE.
  • PLMN Public Land Mobile Network
  • the MeNB requests the mobility management entity MME to acquire D2D authorization information of the UE under the PLMN served by the SeNB, in a case that the PLMNs served by the UE are different.
  • the MeNB requesting the mobility management entity MME to obtain the D2D authorization information of the UE under the PLMN served by the SeNB includes: acquiring, by the MeNB, the UE from the MME by using the S1 interface process.
  • a device-to-device D2D authorization information obtaining apparatus including: a first obtaining module, configured to acquire a device-to-device D2D authorization of a terminal UE from a primary base station MeNB through an X2 interface process. information.
  • the device further includes:
  • an allocating module configured to allocate a D2D resource to the UE according to the D2D authorization information.
  • a device-to-device D2D authorization information obtaining apparatus including: a second obtaining module, configured to acquire, from a mobility management entity MME, a terminal UE device to device D2D authorization information; And the module is configured to provide the D2D authorization information to the secondary base station SeNB by using an X2 interface process, where the SeNB allocates a D2D resource to the UE according to the D2D authorization information.
  • the second obtaining module includes: a request obtaining unit, configured to: when the public land mobile network PLMN served by the SeNB for the UE is different from the PLMN served by the UE under the MeNB, The MME requests to obtain D2D authorization information of the UE under the PLMN served by the SeNB.
  • the device further includes: a request obtaining unit, configured to: request, by the MME, to obtain, by the MME, D2D authorization information of the UE under the PLMN served by the SeNB:
  • the MME obtains the D2D authorization information of the UE in the PLMN served by the SeNB, where the S1 interface process includes: an evolved radio access bearer ERAB modification indication process or a new S1 interface process.
  • the secondary base station SeNB acquires the device-to-device D2D authorization information of the terminal UE from the primary base station MeNB through the X2 interface process; the SeNB allocates the D2D resource to the UE according to the D2D authorization information, and can be in the dual connection.
  • the secondary base station is caused to obtain the D2D authorization information of the UE.
  • FIG. 1 is a schematic diagram of an overall architecture of a small cell base station system in the related art
  • FIG. 2 is a flowchart 1 of a method for acquiring device-to-device D2D authorization information according to an embodiment of the present invention
  • FIG. 3 is a second flowchart of a method for acquiring device-to-device D2D authorization information according to an embodiment of the present invention
  • FIG. 4 is a block diagram 1 of an apparatus for acquiring device-to-device D2D authorization information according to an embodiment of the present invention
  • FIG. 5 is a second block diagram of an apparatus for acquiring device-to-device D2D authorization information according to an embodiment of the present invention
  • FIG. 6 is a block diagram 1 of an apparatus for acquiring device-to-device D2D authorization information according to an alternative embodiment of the present invention
  • FIG. 7 is a schematic diagram of a dual connectivity architecture in a small base station scenario according to an embodiment of the present invention.
  • FIG. 8 is a flowchart 1 of a method for acquiring D2D authorization information according to an embodiment of the present invention.
  • FIG. 9 is a second flowchart of a method for acquiring D2D authorization information according to an embodiment of the present invention.
  • FIG. 10 is a third flowchart of a method for acquiring D2D authorization information according to an embodiment of the present invention.
  • FIG. 2 is a flowchart 1 of a device-to-device D2D authorization information acquisition method according to an embodiment of the present invention. As shown in FIG. 2, the method includes:
  • Step S202 The secondary base station SeNB acquires the device-to-device D2D authorization information of the terminal UE from the primary base station MeNB through the X2 interface procedure.
  • the SeNB may allocate a D2D resource to the UE according to the D2D authorization information.
  • the secondary base station SeNB obtains the device-to-device D2D authorization information of the terminal UE from the primary base station MeNB through the X2 interface process, and enables the secondary base station to obtain the D2D authorization information of the UE in the case of dual connectivity.
  • the D2D authorization information includes at least one of the following: a D2D communication authorization, a D2D discovery authorization, a UE as a network node Network Relay authorization (Relay UE authorization), a remote terminal remote UE authorization, and one or more corresponding to the authorization.
  • Public land mobile network PLMN Public land mobile network
  • the X2 interface process includes: an SeNB adding process or a SeNB modification process.
  • FIG. 3 is a second flowchart of a device-to-device D2D authorization information acquisition method according to an embodiment of the present invention.
  • Step S302 the primary base station MeNB acquires device-to-device D2D authorization information of the terminal UE from the mobility management entity MME;
  • step S304 the MeNB provides the D2D authorization information to the secondary base station SeNB through the X2 interface process, where the SeNB allocates the D2D resource to the UE according to the D2D authorization information.
  • the obtaining, by the MeNB, the D2D authorization information of the UE from the MME may include: when the public land mobile network PLMN served by the SeNB for the UE is different from the PLMN served by the UE under the MeNB, the MeNB requests the mobility management entity MME Obtaining D2D authorization information of the UE under the PLMN served by the SeNB.
  • the MeNB passes the S1 interface process from the The MME obtains the D2D authorization information of the UE in the PLMN served by the SeNB, where the S1 interface process includes: an evolved radio access bearer ERAB modification indication process or a new S1 interface process.
  • FIG. 4 is a block diagram of a device-to-device D2D authorization information acquisition device according to an embodiment of the present invention.
  • the first obtaining module 42 is configured to acquire the device-to-device D2D authorization information of the terminal UE from the primary base station MeNB through the X2 interface process.
  • the device may further include:
  • the allocating module 44 is configured to allocate a D2D resource to the UE according to the D2D authorization information.
  • FIG. 5 is a block diagram 2 of a device-to-device D2D authorization information acquisition device according to an embodiment of the present invention.
  • the second obtaining module 52 is configured to acquire, from the mobility management entity MME, the terminal UE device to the device D2D authorization information;
  • the providing module 54 is configured to provide the D2D authorization information to the secondary base station SeNB by using an X2 interface process, where the SeNB allocates D2D resources to the UE according to the D2D authorization information.
  • FIG. 6 is a block diagram of an apparatus for acquiring device-to-device D2D authorization information according to an alternative embodiment of the present invention.
  • the second obtaining module 52 includes:
  • the request obtaining unit 62 is configured to request, when the public land mobile network PLMN served by the SeNB for the UE and the PLMN served by the UE under the MeNB, obtain the D2D authorization information of the UE under the PLMN served by the SeNB.
  • the request obtaining unit 62 is configured to acquire D2D authorization information of the UE under the PLMN served by the SeNB from the MME by using an S1 interface process, where the S1 interface process includes: an evolved wireless The access bearer ERAB modification indication process or the new S1 interface process.
  • FIG. 7 is a schematic diagram of a dual connectivity architecture in a small base station scenario according to an embodiment of the present invention.
  • the SeNB obtains UE D2D authorization information from the MeNB through an X2 interface process, where the UE D2D authorization information includes but is not limited to the following or Multiple information: D2D communication authorization, D2D discovery authorization, Relay UE authorization, remote UE authorization, and one or more PLMNs corresponding to the foregoing authorization; wherein the X2 interface flow includes but is not limited to the following processes: SeNB adding process, SeNB modification process .
  • the MeNB may request the MME to obtain the D2D authorization information of the UE under the serving PLMN of the SeNB.
  • the MeNB acquires the authorization information of the UE under the designated PLMN from the MME through the S1 interface process.
  • the S1 interface process includes but is not limited to the following processes: the ERAB modification instruction process and the new S1 interface process.
  • the D2D authorization information acquisition can be realized through the information exchange on the network side for the dual-connection service feature, and the judgment basis for the UE to use the D2D resource of the SeNB can be provided, which is beneficial to improving network efficiency and performance.
  • FIG. 8 is a flowchart 1 of a method for acquiring D2D authorization information according to an embodiment of the present invention. As shown in FIG. 8, the method includes:
  • Step S800 the MeNB obtains the D2D authorization information of the UE by using a related method.
  • the MeNB obtains the D2D authorization information of the UE from the MME through the initial context establishment request (INITIAL CONTEXT SETUP REQUEST) and the UE CONTEXT MODIFICATION REQUEST message, and at the same time, in the handover process, the target base station switches through S1 for the S1 handover.
  • the S1HANDOVER REQUEST message is used to obtain the D2D authorization information of the UE.
  • the target base station acquires the D2D authorization information of the UE by using an X2HANDOVER REQUEST message and a PATH SWITCH REQUEST ACKNOWLEDGE message.
  • the MeNB determines to add the SeNB to implement dual connectivity for the UE, and the MeNB sends an add request message to the SeNB, where the message includes the D2D authorization information of the UE, where the UE D2D authorization information includes but is not limited to one or more of the following information: D2D communication authorization , D2D discovery authorization, Relay UE authorization, remote UE authorization, and one or more PLMNs corresponding to the foregoing authorization;
  • Step S804 after receiving the add request message, the SeNB performs a local dual connectivity operation, and saves the D2D authorization information of the UE for subsequent D2D operations. If the addition is successful, the SeNB sends the message to the MeNB. Add a request confirmation message (that is, add a response message). If the addition is unsuccessful, go to step S806;
  • Step S806 if the SeNB fails to process, send an add request failure message to the MeNB.
  • FIG. 9 is a second flowchart of a method for acquiring D2D authorization information according to an embodiment of the present invention.
  • the MeNB obtains D2D authorization information of the UE by using a related method, for example, the MeNB adopts an initial context establishment request (INITIAL CONTEXT SETUP REQUEST).
  • the UE CONTEXT MODIFICATION REQUEST message is used to obtain the D2D authorization information of the UE from the MME, and in the handover process, for the S1 handover, the target base station acquires the D2D authorization information of the UE by using an S1 handover request (S1HANDOVER REQUEST) message.
  • S1HANDOVER REQUEST S1 handover request
  • the target base station acquires the D2D authorization information of the UE through an X2HANDOVER REQUEST message and a PATH SWITCH REQUEST ACKNOWLEDGE message.
  • the UE is in the dual-connection state at this time.
  • the MeNB finds that the D2D authorization information of the UE changes, the MeNB triggers the SeNB modification process, including:
  • Step S902 The MeNB sends a SeNB modification request message to the SeNB, where the message includes the latest UE D2D authorization information, and the UE D2D authorization information includes but is not limited to one or more of the following information: D2D communication authorization, D2D discovery authorization, and Relay UE.
  • Step S904 After receiving the modification request message, the SeNB performs a local dual connectivity operation, and saves the latest UE D2D authorization information for subsequent D2D operations. If the modification succeeds, the SeNB sends a modification request acknowledgement message to the MeNB. If the modification fails, go to step S906;
  • Step S906 if the SeNB fails to process, send a modification request failure message to the MeNB.
  • FIG. 10 is a third flowchart of a method for acquiring D2D authorization information according to an embodiment of the present invention. As shown in FIG. 10, the method includes:
  • the MeNB determines to add the SeNB to implement dual connectivity for the UE, the UE serves the PLMN as the PLMN1 under the MeNB, and the PLMN served by the SeNB for the UE by the MeNB is the PLMN2.
  • the MeNB sends an authorization acquisition request message to the MME, where the message includes one or more of the following information: a PLMN2, a UE D2D authorization information acquisition request indication;
  • Step S1004 After receiving the acquisition request message, the MME sends an acquisition response message to the MeNB, where the message includes one or more of the following information: PLMN2, D2D authorization of the UE under PLMN2. Information, all UE D2D authorization information (including but not limited to one or more of the following: D2D communication authorization, D2D discovery authorization, Relay UE authorization, remote UE authorization, and one or more PLMNs corresponding to the above authorization).
  • PLMN2D authorization information including but not limited to one or more of the following: D2D communication authorization, D2D discovery authorization, Relay UE authorization, remote UE authorization, and one or more PLMNs corresponding to the above authorization.
  • the MeNB sends the D2D authorization information of the UE under the PLMN2 to the SeNB by using an X2 interface message.
  • the MeNB obtains the D2D authorization information of the UE from the MME, and may perform the process before the dual-connection SeNB adds the process, or after the SeNB adds the process successfully.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the method described in the foregoing embodiments.
  • modules or steps of the embodiments of the present invention can be implemented by a general computing device, which can be concentrated on a single computing device or distributed in multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from The steps shown or described are performed sequentially, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.
  • the foregoing technical solution can enable the secondary base station to obtain the D2D authorization information of the UE in the case of dual connectivity, and provide a judgment basis for the UE to use the D2D resource of the SeNB for the dual connectivity service feature in a complex small base station environment, which is beneficial to improving the network. Efficiency and performance.

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Abstract

一种设备到设备D2D授权信息的获取方法及装置，其中，该方法包括：辅基站SeNB通过X2接口流程从主基站MeNB获取终端UE的设备到设备D2D授权信息；该SeNB根据该D2D授权信息为该UE分配D2D资源，能够在双连接情况下使辅基站获取到UE的D2D授权信息。

Description

设备到设备D2D授权信息的获取方法及装置 技术领域
本文涉及但不限于通信领域，具体而言，涉及设备到设备D2D授权信息的获取方法及装置。
背景技术
长期演进系统(Long Term Evolution，简称为LTE)包括：移动管理实体(Mobility Management Entity，简称为MME)，服务网关(Serving GetWay，简称为SGW)，用户设备或称为终端(User Equipment，简称为UE)和基站(eNodeB，简称为eNB)之间是UU接口，eNB和MME之间是S1-MME(S1for the control plane)接口，eNB和SGW之间是S1-U接口，eNB之间是X2-U(X2-User plane)和X2-C(X2-Control plane)接口。在LTE中，S1-MME接口的协议栈从下往上分为以下几个协议层：L1协议，L2协议，因特网协议(Internet Protocol，简称为IP)，流控制传输协议(Stream Control Transmission Protocol，简称为SCTP)，S1应用协议(S1-Application Protocol，简称为S1-AP)。在LTE中，S1-U接口的协议栈从下往上分为以下几个协议层：L1协议，L2协议，用户数据协议/因特网协议(UDP/IP)，GPRS隧道协议-用户面(GPRS Tunneling Protocol-User plane，简称为GTP-U)。
目前，由于频谱资源的匮乏，以及移动用户的大流量业务的激增，为了增加用户吞吐量和增强移动性能，采用高频点如3.5GHz进行热点覆盖的需求日益明显，采用低功率的节点成为新的应用场景。但是，由于高频点的信号衰减比较厉害，新小区的覆盖范围比较小，并且与现有的小区不共站点，因此，如果用户在这些新小区之间进行移动，或者在新小区和现有小区间移动，必定会引起频繁的切换过程，使得基站间频繁传递用户信息，从而对核心网造成了很大的信令冲击，进而遏制了无线侧的大量小蜂窝基站的引入。
图1为一种小蜂窝基站系统总体架构示意图，如图1所示，架构包括：移动管理实体(Mobility Management Entity，简称为MME)，服务网关(Serving  GetWay，简称为SGW)，用户设备或称为终端(User Equipment，简称为UE)和基站(eNodeB，简称为eNB)之间是UU接口，MeNB和MME之间是S1-MME(S1for the control plane)接口，MeNB、SeNB和SGW之间是S1-U接口，eNB之间是X2接口。用户数据可以从核心网通过MeNB下发到用户，也可以从核心网通过SeNB下发到用户。当用户在MeNB接入后，可以通过添加、修改、删除SeNB的方式实现双连接。
同时，随着无线多媒体业务的发展，人们对高数据速率和用户体验的需求日益增长，从而对传统蜂窝网络的系统容量和覆盖提出了较高要求。另一方面社交网络、近距离数据共享、本地广告等应用的流行使得人们对了解附近感兴趣的人或事物并与之通信(Proximity Services，邻近服务)的需求逐渐增加。传统的基于小区的蜂窝网络在高数据速率以及邻近服务的支持方面存在明显的局限性，在这种需求背景下，代表未来通信技术发展新方向的设备到设备(Device-to-Device，简称为D2D)技术应运而生。D2D技术的应用，可以减轻蜂窝网络的负担、减少用户设备的电池功耗、提高数据速率，并改善网络基础设施的鲁棒性，很好地满足上述高数据速率业务和邻近服务的要求。
D2D技术可以工作在授权频段或非授权频段，允许多个支持D2D功能的用户设备(即D2D用户设备，D2D User Equipment，D2D UE)在有网络基础设施或无网络基础设施的情况下进行直接发现和/或直接通信。D2D技术通常包括D2D发现技术和D2D通信技术：
1)D2D发现技术是指用于判断和/或确定两个或多个D2D用户设备之间相互邻近(例如在可进行D2D直接通信范围之内)或用于判断和/或确定第一用户设备邻近第二用户设备的技术。
2)D2D通信技术是指D2D用户设备之间部分或全部通信数据可以不通过网络基础设施而直接进行通信的技术。
D2D通信可复用蜂窝通信资源，在有蜂窝网络覆盖的场景下，D2D通信资源通常由基站进行调度分配，这样可以提高资源复用效率，同时保证网络侧对D2D通信的控制以及D2D通信与蜂窝通信之间干扰协调的效果。对于同一个UE，若其支持D2D功能，则可能同时进行与另一D2D UE间的D2D 通信及与基站间的蜂窝通信。
在单连接场景下，基站通过初始上下文建立请求(INITIAL CONTEXT SETUP REQUEST)和UE上下文修改请求(UE CONTEXT MODIFICATION REQUEST)消息获取UE的D2D授权信息，同时，在切换过程中，对于S1切换，目标基站通过S1切换请求(S1HANDOVER REQUEST)消息获取UE的D2D授权信息，对于X2切换，目标基站通过X2切换请求(X2HANDOVER REQUEST)消息和S1路径转换请求确认(PATH SWITCH REQUEST ACKNOWLEDGE)消息获取UE的D2D授权信息，这里UE的D2D授权信息提供了UE对于ProSe业务(包括了对于ProSe direct discovery和ProSe direct communication)的授权状态信息。
针对相关技术中UE在双连接情况下，基站无法获取UE的D2D授权信息的问题，还未提出有效的解决方案。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本发明实施例提供了设备到设备D2D授权信息获取方法及装置，能够在UE双连接情况下，使辅基站获取到UE的D2D授权信息。
根据本发明实施例的一个方面，提供了一种设备到设备D2D授权信息的获取方法，包括：辅基站SeNB通过X2接口流程从主基站MeNB获取终端UE的设备到设备D2D授权信息。
可选地，所述D2D授权信息包括以下至少之一：D2D通信授权、D2D发现授权、中继终端Relay UE授权，远终端remote UE授权，授权所对应的一个或多个公共陆地移动网络PLMN。
可选地，所述X2接口流程包括：SeNB添加流程或SeNB修改流程。
可选的，所述方法还包括：
所述SeNB根据所述D2D授权信息为所述UE分配D2D资源。
根据本发明实施例的另一方面，提供了一种设备到设备D2D授权信息获 取方法，包括：主基站MeNB从移动管理实体MME获取终端UE的设备到设备D2D授权信息；所述MeNB通过X2接口流程向辅基站SeNB提供所述D2D授权信息，其中，所述SeNB根据所述D2D授权信息为所述UE分配D2D资源。
可选地，所述MeNB从所述MME获取所述UE的所述D2D授权信息包括：在所述SeNB为所述UE服务的公共陆地移动网络(Public Land Mobile Network，简称为PLMN)和所述UE在MeNB下服务的PLMN不同的情况下，所述MeNB向移动管理实体MME请求获取所述UE在所述SeNB服务的PLMN下的D2D授权信息。
可选地，所述MeNB向移动管理实体MME请求获取所述UE在所述SeNB服务的PLMN下的D2D授权信息包括：所述MeNB通过S1接口流程从所述MME获取UE在所述SeNB服务的PLMN下的D2D授权信息，其中，所述S1接口流程包括：演进的无线接入承载ERAB修改指示流程或新增S1接口流程。
根据本发明实施例的另一方面，还提供了一种设备到设备D2D授权信息获取装置，包括：第一获取模块，设置为通过X2接口流程从主基站MeNB获取终端UE的设备到设备D2D授权信息。
可选的，所述装置还包括：
分配模块，设置为根据所述D2D授权信息为所述UE分配D2D资源。
根据本发明实施例的再一方面，还提供了一种设备到设备D2D授权信息的获取装置，包括：第二获取模块，设置为从移动管理实体MME获取终端UE设备到设备D2D授权信息；提供模块，设置为通过X2接口流程向辅基站SeNB提供所述D2D授权信息，其中，所述SeNB根据所述D2D授权信息为所述UE分配D2D资源。
可选地，所述第二获取模块包括：请求获取单元，设置为在所述SeNB为所述UE服务的公共陆地移动网络PLMN和所述UE在MeNB下服务的PLMN不同的情况下，向所述MME请求获取所述UE在所述SeNB服务的PLMN下的D2D授权信息。
可选地，所述装置还包括：请求获取单元，是设置为通过如下方式实现向所述MME请求获取所述UE在所述SeNB服务的PLMN下的D2D授权信息：通过S1接口流程从所述MME获取UE在所述SeNB服务的PLMN下的D2D授权信息，其中，所述S1接口流程包括：演进的无线接入承载ERAB修改指示流程或新增S1接口流程。
通过本发明实施例，采用辅基站SeNB通过X2接口流程从主基站MeNB获取终端UE的设备到设备D2D授权信息；所述SeNB根据所述D2D授权信息为所述UE分配D2D资源，能够在双连接情况下，使辅基站获取到UE的D2D授权信息。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图概述
图1是相关技术中一种小蜂窝基站系统总体架构示意图；
图2是根据本发明实施例的设备到设备D2D授权信息的获取方法的流程图一；
图3是根据本发明实施例的设备到设备D2D授权信息的获取方法的流程图二；
图4是根据本发明实施例的设备到设备D2D授权信息的获取装置的框图一；
图5是根据本发明实施例的设备到设备D2D授权信息的获取装置的框图二；
图6是根据本发明可选实施例的设备到设备D2D授权信息的获取装置的框图一；
图7是根据本发明实施例的小基站场景下双连接架构的示意图；
图8是根据本发明实施例的D2D授权信息获取方法的流程图一；
图9是根据本发明实施例的D2D授权信息获取方法的流程图二；
图10是根据本发明实施例的D2D授权信息获取方法的流程图三。
本发明的实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
本发明实施例提供了一种设备到设备D2D授权信息获取方法，图2是根据本发明实施例的设备到设备D2D授权信息的获取方法的流程图一，如图2所示，包括：
步骤S202，辅基站SeNB通过X2接口流程从主基站MeNB获取终端UE的设备到设备D2D授权信息。
该SeNB可根据该D2D授权信息为该UE分配D2D资源。
通过上述步骤，辅基站SeNB通过X2接口流程从主基站MeNB获取终端UE的设备到设备D2D授权信息能够在双连接情况下使辅基站获取到UE的D2D授权信息。
可选地，该D2D授权信息包括以下至少之一：D2D通信授权、D2D发现授权、UE作为网络节点Network Relay授权(Relay UE授权)、远终端remote UE授权、和授权所对应的一个或多个公共陆地移动网络PLMN。
可选地，该X2接口流程包括：SeNB添加流程或SeNB修改流程。
本发明实施例还提供了一种设备到设备D2D授权信息获取方法，图3是根据本发明实施例的设备到设备D2D授权信息的获取方法的流程图二，如图3所示，包括：
步骤S302，主基站MeNB从移动管理实体MME获取终端UE的设备到设备D2D授权信息；
步骤S304，MeNB通过X2接口流程向辅基站SeNB提供该D2D授权信息，其中，该SeNB根据该D2D授权信息为该UE分配D2D资源。
MeNB从该MME获取该UE的该D2D授权信息可以包括：在该SeNB为该UE服务的公共陆地移动网络PLMN和该UE在MeNB下服务的PLMN不同的情况下，该MeNB向移动管理实体MME请求获取该UE在该SeNB服务的PLMN下的D2D授权信息。可选的，MeNB通过S1接口流程从该 MME获取UE在该SeNB服务的PLMN下的D2D授权信息，其中，该S1接口流程包括：演进的无线接入承载ERAB修改指示流程或新增S1接口流程。
本发明实施例提供了一种设备到设备D2D授权信息获取装置，图4是根据本发明实施例的设备到设备D2D授权信息的获取装置的框图一，如图4所示，包括：
第一获取模块42，设置为通过X2接口流程从主基站MeNB获取终端UE的设备到设备D2D授权信息。
可选的，所述装置还可包括：
分配模块44，设置为根据该D2D授权信息为该UE分配D2D资源。
本发明实施例还提供了一种设备到设备D2D授权信息获取装置，图5是根据本发明实施例的设备到设备D2D授权信息的获取装置的框图二，如图5所示，包括：
第二获取模块52，设置为从移动管理实体MME获取终端UE设备到设备D2D授权信息；
提供模块54，设置为通过X2接口流程向辅基站SeNB提供该D2D授权信息，其中，该SeNB根据该D2D授权信息为该UE分配D2D资源。
图6是根据本发明可选实施例的设备到设备D2D授权信息的获取装置的框图一，如图6所示，第二获取模块52包括：
请求获取单元62，设置为在SeNB为UE服务的公共陆地移动网络PLMN和UE在MeNB下服务的PLMN不同的情况下，向该MME请求获取该UE在该SeNB服务的PLMN下的D2D授权信息。
在一个可选的实施例中，该请求获取单元62，是设置为通过S1接口流程从该MME获取UE在该SeNB服务的PLMN下的D2D授权信息，其中，该S1接口流程包括：演进的无线接入承载ERAB修改指示流程或新增S1接口流程。
下面结合具体的可选实施例进行进一步说明，下述可选实施例结合了上述可选实施例及其可选实施方式。
本发明实施例提供了一种小基站环境下UE D2D授权信息获取的方法， 图7是根据本发明实施例的小基站场景下双连接架构的示意图，如图7所示，SeNB通过X2接口流程从MeNB获取UE D2D授权信息，UE D2D授权信息包括但不限于以下一种或多种信息：D2D通信授权、D2D发现授权、Relay UE授权、remote UE授权、以及上述授权所对应的一个或多个PLMN；其中X2接口流程包含但不限于以下流程：SeNB添加流程，SeNB修改流程。
可选地，当MeNB为UE所添加的SeNB为UE服务的PLMN和UE在MeNB下的服务PLMN不同，则MeNB可以向MME请求获取UE在SeNB的服务PLMN下的D2D授权信息。MeNB通过S1接口流程从MME获取UE在指定PLMN下授权信息。其中S1接口流程包含但不限于以下流程：ERAB修改指示流程、新增S1接口流程。
通过上述方法，能够在复杂的小基站环境下，针对双连接业务特性，通过网络侧的信息交互实现D2D授权信息获取，为UE使用SeNB的D2D资源提供判决依据，有利于提高网络效率和性能。
图8是根据本发明实施例的D2D授权信息获取方法的流程图一，如图8所示，包括：
步骤S800(图中未标出)，MeNB通过相关方法获取到UE的D2D授权信息。比如MeNB通过初始上下文建立请求(INITIAL CONTEXT SETUP REQUEST)和UE上下文修改请求(UE CONTEXT MODIFICATION REQUEST)消息从MME获取UE的D2D授权信息，同时，在切换过程中，对于S1切换，目标基站通过S1切换请求(S1HANDOVER REQUEST)消息获取UE的D2D授权信息，对于X2切换，目标基站通过X2切换请求(X2HANDOVER REQUEST)消息和S1路径转换请求确认(PATH SWITCH REQUEST ACKNOWLEDGE)消息获取UE的D2D授权信息；
步骤S802，MeNB为UE决定添加SeNB实现双连接，MeNB向SeNB发送添加请求消息,该消息中包含UE的D2D授权信息，UE D2D授权信息包括但不限于以下一种或多种信息：D2D通信授权、D2D发现授权、Relay UE授权、remote UE授权、和上述授权所对应的一个或多个PLMN；
步骤S804，SeNB接收到添加请求消息后，进行本地双连接操作，并保存UE的D2D授权信息用于后续D2D操作，若添加成功，则向MeNB发送 添加请求确认消息(即添加响应消息)。若添加不成功，转步骤S806；
步骤S806，若SeNB处理失败，则发送添加请求失败消息给MeNB。
图9是根据本发明实施例的D2D授权信息获取方法的流程图二，如图9所示，MeNB通过相关方法获取到UE的D2D授权信息，比如MeNB通过初始上下文建立请求(INITIAL CONTEXT SETUP REQUEST)和UE上下文修改请求(UE CONTEXT MODIFICATION REQUEST)消息从MME获取UE的D2D授权信息，同时，在切换过程中，对于S1切换，目标基站通过S1切换请求(S1HANDOVER REQUEST)消息获取UE的D2D授权信息，对于X2切换，目标基站通过X2切换请求(X2HANDOVER REQUEST)消息和S1路径转换请求确认(PATH SWITCH REQUEST ACKNOWLEDGE)消息获取UE的D2D授权信息。UE此时处于双连接状态，当MeNB发现UE的D2D授权信息发生变化，MeNB触发SeNB修改流程，包括：
步骤S902，MeNB向SeNB发送SeNB修改请求消息,该消息中包含最新的UE的D2D授权信息，UE D2D授权信息包括但不限于以下一种或多种信息：D2D通信授权、D2D发现授权、Relay UE授权、remote UE授权、和上述授权所对应的一个或多个PLMN；
步骤S904，SeNB接收到修改请求消息后，进行本地双连接操作，并保存最新的UE的D2D授权信息用于后续D2D操作，若修改成功，则向MeNB发送修改请求确认消息。若修改失败，转步骤S906；
步骤S906，若SeNB处理失败，则发送修改请求失败消息给MeNB。
图10是根据本发明实施例的D2D授权信息获取方法的流程图三，如图10所示，包括：
步骤S1002，MeNB为UE决定添加SeNB实现双连接，UE在MeNB下服务PLMN为PLMN1，MeNB为UE所添加的SeNB为UE服务的PLMN为PLMN2。MeNB向MME发送授权获取请求消息，该消息中包含以下一种或多种信息：PLMN2、UE D2D授权信息获取请求指示；
步骤S1004，MME收到获取请求消息后，发送获取响应消息给MeNB，该消息中包含以下一种或多种信息：PLMN2、UE在PLMN2下的D2D授权 信息、所有UE D2D授权信息(包括但不限于以下一种或多种信息：D2D通信授权、D2D发现授权、Relay UE授权、remote UE授权、和上述授权所对应的一个或多个PLMN)。
可选地，MeNB通过X2接口消息将UE在PLMN2下的D2D授权信息发送给SeNB。其中，MeNB向MME获取UE的D2D授权信息，可以在双连接SeNB添加流程前进行，也可以在SeNB添加流程成功后进行。
本发明实施例还提供了一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行上述实施例所述的方法。
显然，本领域的技术人员应该明白，上述的本发明实施例的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的可选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
工业实用性
上述技术方案能够实现在双连接情况下使辅基站获取到UE的D2D授权信息，在复杂的小基站环境下，针对双连接业务特性，为UE使用SeNB的D2D资源提供判决依据，有利于提高网络效率和性能。

Claims (12)

  1. 一种设备到设备D2D授权信息的获取方法，包括：
    辅基站SeNB通过X2接口流程从主基站MeNB获取终端UE的设备到设备D2D授权信息。
  2. 根据权利要求1所述的方法，其中，
    所述D2D授权信息包括以下至少之一：D2D通信授权、D2D发现授权、中继终端Relay UE授权、远终端remote UE授权、以及授权所对应的一个或多个公共陆地移动网络PLMN。
  3. 根据权利要求1所述的方法，其中，所述X2接口流程包括：
    SeNB添加流程或SeNB修改流程。
  4. 根据权利要求1所述的方法，还包括：
    所述SeNB根据所述D2D授权信息为所述UE分配D2D资源。
  5. 一种设备到设备D2D授权信息的获取方法，包括：
    主基站MeNB从移动管理实体MME获取终端UE的设备到设备D2D授权信息；
    所述MeNB通过X2接口流程向辅基站SeNB提供所述D2D授权信息，其中，所述SeNB根据所述D2D授权信息为所述UE分配D2D资源。
  6. 根据权利要求5所述的方法，其中，所述MeNB从所述MME获取所述UE的所述D2D授权信息包括：
    在所述SeNB为所述UE服务的公共陆地移动网络PLMN和所述UE在MeNB下服务的PLMN不同的情况下，所述MeNB向移动管理实体MME请求获取所述UE在所述SeNB服务的PLMN下的D2D授权信息。
  7. 根据权利要求6所述的方法，其中，所述MeNB向移动管理实体MME请求获取所述UE在所述SeNB服务的PLMN下的D2D授权信息包括：
    所述MeNB通过S1接口流程从所述MME获取UE在所述SeNB服务的PLMN下的D2D授权信息，其中，所述S1接口流程包括：演进的无线接入承载ERAB修改指示流程或新增S1接口流程。
  8. 一种设备到设备D2D授权信息的获取装置，包括：
    第一获取模块，设置为通过X2接口流程从主基站MeNB获取终端UE的设备到设备D2D授权信息。
  9. 根据权利要求8所述的获取装置，还包括：
    分配模块，设置为根据所述D2D授权信息为所述UE分配D2D资源。
  10. 一种设备到设备D2D授权信息的获取装置，包括：
    第二获取模块，设置为从移动管理实体MME获取终端UE设备到设备D2D授权信息；
    提供模块，设置为通过X2接口流程向辅基站SeNB提供所述D2D授权信息，其中，所述SeNB根据所述D2D授权信息为所述UE分配D2D资源。
  11. 根据权利要求10所述的装置，其中，所述第二获取模块包括：
    请求获取单元，设置为在所述SeNB为所述UE服务的公共陆地移动网络PLMN和所述UE在主基站MeNB下服务的PLMN不同的情况下，向所述MME请求获取所述UE在所述SeNB服务的PLMN下的D2D授权信息。
  12. 根据权利要求11所述的装置，其中，
    请求获取单元，是设置为通过如下方式实现向所述MME请求获取所述UE在所述SeNB服务的PLMN下的D2D授权信息：通过S1接口流程从所述MME获取UE在所述SeNB服务的PLMN下的D2D授权信息，其中，所述S1接口流程包括：演进的无线接入承载ERAB修改指示流程或新增S1接口流程。
PCT/CN2016/089448 2015-08-21 2016-07-08 设备到设备d2d授权信息的获取方法及装置 WO2017032176A1 (zh)

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111757292A (zh) * 2019-03-29 2020-10-09 中国移动通信有限公司研究院 一种双连接的方法及设备
CN113498615B (zh) * 2019-08-16 2022-12-20 Oppo广东移动通信有限公司 通信方法、终端设备和网络设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103648103A (zh) * 2013-12-20 2014-03-19 上海交通大学无锡研究院 一种网络覆盖下有网络协助的d2d通信技术的信令控制方法
WO2015065010A1 (en) * 2013-10-28 2015-05-07 Lg Electronics Inc. Method and apparatus for performing dual connectivity in heterogeneous network
CN104797000A (zh) * 2014-01-21 2015-07-22 普天信息技术有限公司 双连接网络中的无线承载建立方法及系统
WO2015115959A1 (en) * 2014-01-31 2015-08-06 Telefonaktiebolaget L M Ericsson (Publ) A method between two enbs to agree on radio resource configuration for a ue which supports dual connectivity between the enbs

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103096290B (zh) * 2011-11-03 2016-03-09 华为技术有限公司 建立设备到设备连接的方法、装置和系统
CN104244412B (zh) * 2013-06-09 2020-05-22 索尼公司 无线通信设备、无线通信方法以及基站
US20160028585A1 (en) * 2014-01-31 2016-01-28 Telefonaktiebolaget L M Ericsson (Publ) A Master and Second Evolved Node B and Method Performed Thereby for Modifying a Radio Resource of the SENB with Respect to a UE Currently Being Connected to the MENB

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015065010A1 (en) * 2013-10-28 2015-05-07 Lg Electronics Inc. Method and apparatus for performing dual connectivity in heterogeneous network
CN103648103A (zh) * 2013-12-20 2014-03-19 上海交通大学无锡研究院 一种网络覆盖下有网络协助的d2d通信技术的信令控制方法
CN104797000A (zh) * 2014-01-21 2015-07-22 普天信息技术有限公司 双连接网络中的无线承载建立方法及系统
WO2015115959A1 (en) * 2014-01-31 2015-08-06 Telefonaktiebolaget L M Ericsson (Publ) A method between two enbs to agree on radio resource configuration for a ue which supports dual connectivity between the enbs

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ALCATEL -LUCENT SHANGHAI BELL ET AL.: "3GPP TSG RAN WG3 Meeting #87 R3-150209", MANAGING D2D SERVICE CONTINUITY, 13 February 2015 (2015-02-13), XP050936962 *
See also references of EP3340662A4 *

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