WO2015139282A1

WO2015139282A1 - Method and device for establishing group leader of user group in d2d communication

Info

Publication number: WO2015139282A1
Application number: PCT/CN2014/073809
Authority: WO
Inventors: 马洁
Original assignee: 华为技术有限公司
Priority date: 2014-03-21
Filing date: 2014-03-21
Publication date: 2015-09-24
Also published as: CN105165032A

Abstract

A method and device for establishing a group leader of a user group in D2D communication. The method comprises: a base station receives a first request message used for establishing a D2D device as a group leader of a target user group, where the first request message carries at least a group identifier of the target user group and a device identifier of the D2D device; the base station determines respectively the target user group and the group leader on the basis of the group identifier and the device identifier in the first request message and allocates to the target user group a group claim channel resource for use by the group leader in transmitting group claim information to group members; and, the base station transmits a first response message used for establishing the D2D device as the group leader of the target user group, where the first response message carries at least the group identifier of the target user group and a location identifier of the group claim channel resource. The D2D device is any one D2D device accessing a cellular cell covered by the base station. Per embodiments of the present application, solved is the problem in the prior art that, because group claim channel resources selected by group leaders of different user groups overlap with each other, interference is generated among D2D communications of different user groups.

Description

一种在 D2D通信中建立用户组的组头的方法和装置技术领域 Method and device for establishing group header of user group in D2D communication

本申请涉及无线通信领域，特别是涉及一种在 D2D通信中建立用户组的组头的方法和装置。 The present application relates to the field of wireless communications, and in particular, to a method and apparatus for establishing a group header of a user group in D2D communication.

背景技术在无线通信覆盖比较完善的情况下，运营商和政府都希望无线通信能够处理一些公共安全事件。 gp，在公共安全事件发生后，一组公共安全人员（例如，紧急指挥小组或救援小组）之间会在一定地域范围内通过一种特有的无线终端设备进行通信，这种特有的终端设备就是 D2D (Device to Device, 终端直通）设备。 D2D 设备不仅能够和普通的无线终端设备一样与基站进行蜂窝通信，同时也能都直接与另一个 D2D设备进行 D2D通信。 BACKGROUND OF THE INVENTION In the context of perfect wireless communication coverage, both operators and governments want wireless communications to handle some public safety events. Gp, after a public security incident, a group of public security personnel (for example, an emergency command team or a rescue team) communicates over a geographical area through a unique wireless terminal device. This unique terminal device is D2D (Device to Device) device. The D2D device can not only perform cellular communication with the base station like the ordinary wireless terminal device, but also can directly perform D2D communication with another D2D device.

通常，根据实际需要，在一个基站的网络覆盖范围内，一组公共安全人员所持有的多个 D2D设备会构成一个用户组（或用户簇），并且该用户组中的每个 D2D设备作为该用户组的组员，还会推选出一个 D2D设备，并将选举出的 D2D 设备建立为该用户组的组头，该组头负责协调和分配各组员所使用的无线资源。 Generally, according to actual needs, within a network coverage of a base station, a plurality of D2D devices held by a group of public security personnel constitute a user group (or user cluster), and each D2D device in the user group acts as The member of the user group also selects a D2D device and establishes the elected D2D device as the group header of the user group, which is responsible for coordinating and allocating the wireless resources used by each group member.

在实现本申请的过程中，本申请的发明人发现现有技术中至少存在如下问题：当一个用户组的各组员通过推选的方式建立一个组头之后，该组头进一步选择其在向组员发送组宣称信息时所使用的物理资源（该物理资源即为组宣称信道资源）。其中，组头向组员发送组宣称信息的目的是为了通知组员自己成为用户组的组头。但是，对于不同的用户组而言，各用户组的组头很有可能会抢占相同物理资源作为组宣称信道资源，从而会使各用户组的 D2D通信产生相互干扰。并且，在该用户组中的各组员推选组头的过程中，各组员之间需要交互大量的信令，从而也会浪费***大量的信令开销。 In the process of implementing the present application, the inventor of the present application finds that at least the following problems exist in the prior art: After each group member of a user group establishes a group header by means of a selection, the group header further selects its in-group group. The physical resource used by the member to send the group's claim information (the physical resource is the group's declared channel resource). The purpose of the group header to send the group announcement information to the group member is to notify the group member to become the group header of the user group. However, for different user groups, the group header of each user group is likely to preempt the same physical resource as the group-declared channel resource, which causes the D2D communication of each user group to interfere with each other. Moreover, in the process of selecting a group header by each group member in the user group, each group member needs to exchange a large amount of signaling, thereby wasting a large amount of signaling overhead of the system.

另外，由于没有对建立的组头进行任何验证，因此，该组头也有可能会存在安全性问题。 In addition, since there is no verification of the established group header, there may be security issues in the group header.

发明内容 Summary of the invention

为了解决上述技术问题，本申请实施例提供了一种在 D2D通信中建立用户组的组头的方法和装置，以解决现有技术中由于不同用户组的组头所选择的组宣称信道资源相互重叠，而导致不同用户组的 D2D通信产生相互干扰的问题，同时也解决了在建立用户组的组头的过程会浪费大量信令开销的问题。 In order to solve the above technical problem, the embodiment of the present application provides a method for establishing in D2D communication. The method and device for the group header of the group to solve the problem that the D2D communication of different user groups interferes with each other due to overlapping of the group channel resources selected by the group headers of different user groups in the prior art, and also solves the problem The process of establishing a group header of a user group wastes a lot of signaling overhead.

进一步的，还解决了在建立用户组的组头时，由于未对组头进行验证而存在的安全性问题。 Further, the security problem that exists when the group header of the user group is established is verified because the group header is not verified.

同时还解决了用户组的 Qos参数的获取问题。 At the same time, the problem of obtaining the Qos parameter of the user group is also solved.

本申请实施例公开了如下技术方案： The embodiment of the present application discloses the following technical solutions:

根据本发明实施例的第一方面，公开了一种在 D2D通信中建立用户组的组头的方法，包括： According to a first aspect of the present invention, a method for establishing a group header of a user group in D2D communication is disclosed, including:

基站接收用于将 D2D设备建立成为目标用户组的组头的第一请求消息，所述第一请求消息中至少携带有目标用户组的组标识和 D2D设备的设备标识； The base station receives a first request message for establishing a D2D device as a group header of the target user group, where the first request message carries at least the group identifier of the target user group and the device identifier of the D2D device;

基站根据所述第一请求消息中的组标识和设备标识分别确定目标用户组以及目标用户组的组头，并为所述目标用户组分配用于组头向组员发送组宣称信息的组宣称信道资源； Determining, by the base station, a group header of the target user group and the target user group according to the group identifier and the device identifier in the first request message, and assigning, to the target user group, a group claim for sending the group claim information to the group member. Channel resource

基站发送用于将 D2D设备建立成为目标用户组的组头的第一响应消息，所述第一响应消息中至少携带有所述目标用户组的组标识和所述组宣称信道资源的位置标识； The base station sends a first response message for establishing a D2D device as a group header of the target user group, where the first response message carries at least the group identifier of the target user group and the location identifier of the group-declared channel resource;

其中，所述设备标识指示的 D2D设备为接入到所述基站覆盖的蜂窝小区的任意一个 D2D设备。 The D2D device indicated by the device identifier is any D2D device that accesses a cell covered by the base station.

结合本发明的第一方面，本发明还具有第一种可能，即所述方法还包括：基站为所述目标用户组分配用于组头和组员传输数据的数据传输资源；则所述第一响应消息中还携带有所述数据传输资源的位置标识，所述组宣称信息用于携带所述数据传输资源。 In conjunction with the first aspect of the present invention, the present invention also has a first possibility that the method further includes: the base station assigning, to the target user group, data transmission resources for group header and group member transmission data; A response message further carries a location identifier of the data transmission resource, where the group declaration information is used to carry the data transmission resource.

结合本发明的第一方面以及第一方面的第一种可能，本发明还具有第二种可能，即所述方法还包括： In conjunction with the first aspect of the invention and the first possibility of the first aspect, the invention also has a second possibility that the method further comprises:

在基站为所述目标用户组分配物理资源之前，基站利用核心网网元验证所述目标用户组是否合法以及所述 D2D设备是否有资格成为所述目标用户组的组头； Before the base station allocates physical resources to the target user group, the base station uses the core network element to verify whether the target user group is legal and whether the D2D device is eligible to be the target user group. Group head

基站为所述目标用户组分配物理资源具体为： The base station allocates physical resources to the target user group, specifically:

在验证通过时，基站为所述目标用户组分配物理资源； When the verification is passed, the base station allocates physical resources to the target user group;

其中，所述物理资源为组宣称信道资源，或者，组宣称信道资源和数据传输资源。 The physical resource claims a channel resource for the group, or the group declares a channel resource and a data transmission resource.

结合本发明的第一方面以及第一方面的第一种可能，本发明还具有第三种可能，即基站分配的物理资源处于非激活状态；所述方法还包括： With the first aspect of the present invention and the first possibility of the first aspect, the present invention also has a third possibility that the physical resource allocated by the base station is in an inactive state; the method further includes:

基站接收需要传输数据的 D2D设备发送的用于将非激活状态的物理资源激活的激活请求消息或 D2D专用的 SR信号； The base station receives an activation request message or a D2D-dedicated SR signal sent by the D2D device that needs to transmit data for activating an inactive physical resource;

基站激活物理资源； The base station activates the physical resource;

基站向需要传输数据的 D2D设备发送用于将非激活状态的物理资源激活的激活响应消息或 D2D专用的 SR信号； The base station transmits an activation response message or a D2D-dedicated SR signal for activating the physical resource in the inactive state to the D2D device that needs to transmit data;

结合本发明的第一方面的第三种可能，本发明还具有第四种可能，即所述方法还包括： In conjunction with the third possibility of the first aspect of the invention, the invention also has a fourth possibility that the method further comprises:

基站接收已传输完毕的 D2D设备发送的用于将激活状态的物理资源去激活的去激活请求消息或 D2D专用的 SR信号； Receiving, by the base station, a deactivation request message or a D2D-dedicated SR signal sent by the D2D device that has been transmitted to deactivate the physical resource in the activated state;

基站去激活物理资源； The base station deactivates the physical resource;

基站向已传输完毕的 D2D设备发送用于将激活状态的物理资源去激活的激活响应消息或 D2D专用的 SR信号； The base station sends an activation response message or a D2D-dedicated SR signal for deactivating the activated physical resource to the transmitted D2D device;

结合本发明的第一方面的第一种可能，本发明还具有第五种可能，即所述基站为所述目标用户组分配用于组头和组员传输数据的数据传输资源具体为：基站从核心网网元获取所述目标用户组的服务质量 Qos参数或参数组，并根据所述目标用户组的 Qos 参数或参数组为所述目标用户组分配所述数据传输资源。结合本发明的第一方面以及第一方面的第一种可能，本发明还具有第六种可能，即所述方法还包括： In conjunction with the first possibility of the first aspect of the present invention, the present invention further has a fifth possibility that the base station allocates data transmission resources for the group header and group member transmission data to the target user group, specifically: Obtaining a QoS parameter or a parameter group of the target user group from the core network element, and allocating the data transmission resource to the target user group according to the QoS parameter or a parameter group of the target user group. In conjunction with the first aspect of the invention and the first possibility of the first aspect, the invention also has a sixth possibility that the method further comprises:

基站在覆盖的蜂窝小区范围内广播携带所述目标用户组的组标识和物理资源的位置标识的 SIB消息； The base station broadcasts, within the coverage cell, an SIB message carrying the group identifier of the target user group and the location identifier of the physical resource;

或者， Or,

基站向接入到自身覆盖的蜂窝小区的所有 D2D设备发送携带所述目标用户组的组标识和物理资源的位置标识的专用信令； The base station sends, to all D2D devices accessing the cell covered by the base station, dedicated signaling carrying the group identity of the target user group and the location identifier of the physical resource;

其中，所述物理资源为组宣称信道资源，或者，组宣称信道资源和 /或数据传输资源。 The physical resource is a group claiming a channel resource, or the group claims a channel resource and/or a data transmission resource.

结合本发明的第一方面以及第一方面的第一种可能，本发明还具有第七种可能，即所述方法还包括： In conjunction with the first aspect of the invention and the first possibility of the first aspect, the invention also has a seventh possibility that the method further comprises:

基站接收用于更换物理资源的第二请求消息，所述第二请求消息中至少携带有所述目标用户组的组标识和所述组头的设备标识； Receiving, by the base station, a second request message for replacing the physical resource, where the second request message carries at least the group identifier of the target user group and the device identifier of the group header;

基站根据所述第二请求消息中的组标识和设备标识分别确定目标用户组以及目标用户组的组头，并为所述目标用户组更换物理资源； Determining, by the base station, a group header of the target user group and the target user group according to the group identifier and the device identifier in the second request message, and replacing physical resources for the target user group;

基站发送更换物理资源的第二响应消息，所述第二响应消息中至少携带有更换后的物理资源的位置标识； The base station sends a second response message for replacing the physical resource, where the second response message carries at least the location identifier of the replaced physical resource;

结合本发明的第一方面以及第一方面的第一种可能，本发明还具有第八种可能，即所述方法还包括： In conjunction with the first aspect of the invention and the first possibility of the first aspect, the invention also has an eighth possibility that the method further comprises:

基站通过 X2接口消息将所述目标用户组当前占用的物理资源通知给临近的基站； The base station notifies the neighboring base station of the physical resources currently occupied by the target user group by using the X2 interface message;

结合本发明的第一方面的第七种可能，本发明还具有第九种可能，即，所述第二请求消息为所述目标用户组的组头在监测到所述目标用户组的组通信质量小于预设的门限值时发送的；或者， In conjunction with the seventh possibility of the first aspect of the present invention, the present invention also has a ninth possibility that the second request message is a group communication of the target user group and the group communication of the target user group is monitored. Sent when the quality is less than the preset threshold; or,

所述第二请求消息为所述目标用户组的组头在发起小区切换时发送的。结合本发明的第一方面的第九种可能，本发明还具有第十种可能，即如果所述第二请求消息为所述目标用户组的组头在发起小区切换时发送的，所述第二请求消息具体为切换过程中的 RRC radio reconfiguration complete消息。 The second request message is sent when the group header of the target user group initiates a cell handover. In conjunction with the ninth possibility of the first aspect of the present invention, the present invention also has a tenth possibility that if the second request message is sent when the group header of the target user group initiates a cell handover, the The second request message is specifically an RRC radio reconfiguration complete message in the handover process.

结合本发明的第一方面以及第一方面的第一种可能，本发明还具有第十一种可能，即所述方法还包括： In conjunction with the first aspect of the invention and the first possibility of the first aspect, the invention also has an eleventh possibility that the method further comprises:

基站为所述目标用户组更换物理资源； The base station replaces physical resources for the target user group;

基站向所述目标用户组的组头发送更换物理资源的控制消息，所述控制消息中至少携带有更换后的物理资源的位置标识； The base station sends a control message for replacing the physical resource to the group header of the target user group, where the control message carries at least the location identifier of the replaced physical resource;

基站接收所述目标用户组的组头返回的更换所述物理资源的确认消息；其中，所述物理资源为组宣称信道资源，或者，组宣称信道资源和 /或数据传输资源。 The base station receives an acknowledgment message for replacing the physical resource returned by the group header of the target user group; wherein the physical resource is a group claiming channel resource, or the group claims channel resource and/or data transmission resource.

根据本发明实施例的第二方面，公开了一种在 D2D通信中建立用户组的组头的装置，包括： According to a second aspect of the embodiments of the present invention, an apparatus for establishing a group header of a user group in D2D communication is disclosed, including:

第一接收单元，用于接收用于将 D2D设备建立成为目标用户组的组头的第一请求消息，所述第一请求消息中至少携带有目标用户组的组标识和 D2D 设备的设备标识； a first receiving unit, configured to receive a first request message for establishing a D2D device as a group header of the target user group, where the first request message carries at least a group identifier of the target user group and a device identifier of the D2D device;

第一分配单元，用于根据所述第一请求消息中的组标识和设备标识分别确定目标用户组以及目标用户组的组头，并为所述目标用户组分配用于组头向组员发送组宣称信息的组宣称信道资源； a first allocation unit, configured to respectively determine a target user group and a group header of the target user group according to the group identifier and the device identifier in the first request message, and allocate, for the target user group, a group header to send to the group member The group claiming the information declares the channel resource;

第一发送单元，用于发送将 D2D设备建立成为所述目标用户组的组头的第一响应消息，所述第一响应消息中至少携带有所述目标用户组的组标识和所述组宣称信道资源的位置标识； a first sending unit, configured to send a first response message that establishes a D2D device as a group header of the target user group, where the first response message carries at least the group identifier of the target user group and the group claim Location identifier of the channel resource;

结合本发明的第二方面，本发明还具有第一种可能，即所述装置还包括：第二分配单元，用于为所述目标用户组分配用于组头和组员传输数据的数据传输资源； In conjunction with the second aspect of the present invention, the present invention also has a first possibility that the apparatus further includes: a second allocating unit, configured to allocate, for the target user group, a number for transmitting data for the group header and the group member According to transmission resources;

则所述第一响应消息中还携带有所述数据传输资源的位置标识，所述组宣称信息用于携带所述数据传输资源。 And the first response message further carries a location identifier of the data transmission resource, where the group declaration information is used to carry the data transmission resource.

结合本发明的第二方面以及第二方面的第一种可能，本发明还具有第二种可能，即所述装置还包括： In conjunction with the second aspect of the invention and the first possibility of the second aspect, the invention also has a second possibility that the apparatus further comprises:

验证单元，用于在第一分配单元为所述目标用户组分配组宣称信道资源，或者，在第一分配单元为所述目标用户组分配组宣称信道资源以及第二分配单元为所述目标用户组分配数据传输资源之前，利用核心网网元验证所述目标用户组是否合法以及所述 D2D设备是否有资格成为所述目标用户组的组头；则所述第一分配单元具体用于，在验证通过时，为所述目标用户组分配所述组宣称信道资源； a verification unit, configured to allocate, by the first allocation unit, a group to declare the channel resource for the target user group, or, in the first allocation unit, allocate a group to declare the channel resource for the target user group, and the second allocation unit is the target user Before the group allocates the data transmission resource, the core network element is used to verify whether the target user group is legal and whether the D2D device is eligible to be the group header of the target user group; When the verification is passed, the group of claimed channel resources is allocated to the target user group;

则所述第二分配单元具体用于，在验证通过时，为所述目标用户组分配所述数据传输资源。 The second allocation unit is specifically configured to allocate the data transmission resource to the target user group when the verification is passed.

结合本发明的第二方面以及第二方面的第一种可能，本发明还具有第三种可能，即基站分配的物理资源处于非激活状态；所述装置还包括： In conjunction with the second aspect of the present invention and the first aspect of the second aspect, the present invention also has a third possibility that the physical resource allocated by the base station is in an inactive state; the apparatus further includes:

第二接收单元，用于接收需要传输数据的 D2D设备发送的用于将非激活状态的物理资源激活的激活请求消息或 D2D专用的 SR信号； a second receiving unit, configured to receive, by the D2D device that needs to transmit data, an activation request message or a D2D-dedicated SR signal for activating a physical resource in an inactive state;

激活单元，用于激活物理资源； An activation unit, configured to activate a physical resource;

第二发送单元，用于向需要传输数据的所述 D2D设备发送用于将非激活状态的物理资源激活的激活响应消息或 D2D专用 SR信号； a second sending unit, configured to send, to the D2D device that needs to transmit data, an activation response message or a D2D dedicated SR signal for activating a physical resource in an inactive state;

结合本发明第二方面的第三种可能，本发明还具有第四种可能，即所述装置还包括： In conjunction with the third possibility of the second aspect of the invention, the invention also has a fourth possibility that the apparatus further comprises:

第三接收单元，用于接收已传输完毕的 D2D设备发送的用于将激活状态的物理资源去激活的去激活请求消息或 D2D专用的 SR信号； a third receiving unit, configured to receive a deactivation request message or a D2D-dedicated SR signal sent by the D2D device that has been transmitted to deactivate the physical resource in an activated state;

去激活单元，用于去激活物理资源； Deactivation unit, used to deactivate physical resources;

第三发送单元，用于向需要传输数据的所述 D2D设备发送用于将激活状态的物理资源去激活的激活响应消息或 D2D专用的 SR信号； a third sending unit, configured to send, to the D2D device that needs to transmit data, an activation state The activation response message of the physical resource deactivation or the SR signal dedicated to the D2D;

结合本发明的第二方面的第一种可能，本发明还具有第四种可能，即所述第二分配单元具体用于，从核心网网元获取所述目标用户组的服务质量 Qos 参数或参数组，并根据所述目标用户组的 Qos参数或参数组为所述目标用户组分配所述数据传输资源。 With reference to the first possibility of the second aspect of the present invention, the present invention further has a fourth possibility that the second allocation unit is specifically configured to obtain the quality of service Qos parameter of the target user group from the core network element or a parameter group, and allocating the data transmission resource to the target user group according to a Qos parameter or a parameter group of the target user group.

结合本发明的第二方面以及第二方面的第一种可能，本发明还具有第五种可能，即所述装置还包括： In conjunction with the second aspect of the invention and the first possibility of the second aspect, the invention also has a fifth possibility that the apparatus further comprises:

广播单元，用于在覆盖的蜂窝小区范围内广播携带所述目标用户组的组标识物理资源的位置标识的 SIB消息； a broadcasting unit, configured to broadcast, within a coverage cell, an SIB message carrying a location identifier of a group of the target user group that identifies a physical resource;

或者， Or,

专用信令发送单元，用于基站向接入到自身覆盖的蜂窝小区的所有 D2D 设备发送携带所述目标用户组的组标识和物理资源的位置标识的专用信令；其中，所述物理资源为组宣称信道资源，或者，组宣称信道资源和 /或数据传输资源。 a dedicated signaling sending unit, configured to send, by the base station, dedicated signaling that carries a group identifier of the target user group and a location identifier of the physical resource to all D2D devices that access the cell that covers the coverage; wherein the physical resource is The group declares channel resources, or the group claims channel resources and/or data transmission resources.

结合本发明的第二方面以及第二方面的第一种可能，本发明还具有第六种可能，即所述装置还包括： In conjunction with the second aspect of the invention and the first possibility of the second aspect, the invention also has a sixth possibility that the apparatus further comprises:

第四接收单元，用于接收用于更换物理资源的第二请求消息，所述第二请求消息中至少携带有所述目标用户组的组标识和所述组头的设备标识； a fourth receiving unit, configured to receive a second request message for replacing the physical resource, where the second request message carries at least the group identifier of the target user group and the device identifier of the group header;

第一更换单元，用于根据所述第二请求消息中的组标识和设备标识分别确定目标用户组以及目标用户组的组头，并为所述目标用户组更换物理资源；第四发送单元，用于发送更换物理资源的第二响应消息，所述第二响应消息中至少携带有更换后的物理资源的位置标识； a first replacing unit, configured to determine a target group of the target user group and the target user group according to the group identifier and the device identifier in the second request message, and replace the physical resource for the target user group; the fourth sending unit, a second response message for sending a replacement physical resource, where the second response message carries at least a location identifier of the replaced physical resource;

结合本发明的第二方面以及第二方面的第一种可能，本发明还具有第七种可能，即所述装置还包括：通知单元，用于通过 X2接口消息将所述目标用户组当前占用的物理资源通知给临近的基站； In conjunction with the second aspect of the invention and the first possibility of the second aspect, the invention also has a seventh possibility that the apparatus further comprises: a notification unit, configured to notify, by using an X2 interface message, a physical resource currently occupied by the target user group to an adjacent base station;

结合本发明的第二方面以及第二方面的第一种可能，本发明还具有第八种可能，即所述装置还包括： In conjunction with the second aspect of the invention and the first possibility of the second aspect, the invention also has an eighth possibility that the apparatus further comprises:

第二更换单元，用于为所述目标用户组更换物理资源； a second replacement unit, configured to replace physical resources for the target user group;

第五发送单元，用于向所述目标用户组的组头发送更换物理资源的控制消息，所述控制消息中至少携带有更换后的物理资源的位置标识； a fifth sending unit, configured to send, to the group header of the target user group, a control message for replacing a physical resource, where the control message carries at least a location identifier of the replaced physical resource;

第五接收单元，用于接收所述目标用户组的组头返回的更换物理资源的确认消息； a fifth receiving unit, configured to receive a confirmation message of the replacement physical resource returned by the group header of the target user group;

由上述实施例可以看出，与现有技术相比，本申请具有如下优点：基站响应 D2D设备的请求，为该 D2D设备分配当其作为组头时向组员发送组宣称信息所使用的组宣称信道资源， SP , 用户组的组宣称信道资源是由基站统一规划并分配的，因此，可以避免出现不同用户组的组宣称信道资源相互重叠的问题，进而也就可以避免不同用户组的 D2D通信相互干扰的问题。除此之外，基站还为目标用户组统一规划并分配用于传输数据的数据传输资源，避免组员对相同的数据传输资源进行抢占，提高了资源利用率。 As can be seen from the above embodiments, the present application has the following advantages: Compared with the prior art, the present application has the following advantages: The base station responds to the request of the D2D device, and allocates the group used by the base station to send the group announcement information to the group member when it is the group header. Declaring channel resources, SPs, groups of user groups claim that channel resources are uniformly planned and allocated by the base station. Therefore, it is possible to avoid the problem that groups of different user groups claim that channel resources overlap each other, thereby avoiding D2D of different user groups. Communication problems interfere with each other. In addition, the base station uniformly plans and allocates data transmission resources for transmitting data for the target user group, thereby preventing the group members from preempting the same data transmission resources and improving resource utilization.

并且，确定组头的整个过程仅涉及基站与作为组头的 D2D设备之间的信令交互，同时也节省了信令开销，避免了***资源在信令开销上的浪费。 Moreover, the entire process of determining the group header involves only the signaling interaction between the base station and the D2D device as the group header, and also saves signaling overhead, thereby avoiding waste of signaling resources of the system resources.

进一步的，还解决了在建立用户组的组头时，由于未对组头进行验证而存在的安全性问题。附图说明为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，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。 Further, the security problem that exists when the group header of the user group is established is verified because the group header is not verified. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings to be used in the embodiments or the description of the prior art will be briefly described below, for those of ordinary skill in the art. As a member, other drawings can be obtained based on these drawings without paying for creative labor.

图 1为本申请实施例一提供的一种在 D2D通信中建立用户组的组头的方法的流程图； 1 is a flowchart of a method for establishing a group header of a user group in D2D communication according to Embodiment 1 of the present application;

图 2为本申请实施例二提供的一种在 D2D通信中建立用户组的组头的方法的信令图； 2 is a signaling diagram of a method for establishing a group header of a user group in D2D communication according to Embodiment 2 of the present application;

图 3为本申请中目标用户组成员移动到邻小区的一个场景示意图；图 4为本申请中目标用户组成员移动到邻小区的另一个场景示意图；图 5为本申请实施例三提供的一种在 D2D通信中更换组宣称信道资源的方法的流程图； FIG. 3 is a schematic diagram of a scenario in which a target user group member moves to a neighboring cell in the present application; FIG. 4 is a schematic diagram of another scenario in which a target user group member moves to a neighboring cell in the present application; FIG. A flowchart of a method for replacing a group-declared channel resource in D2D communication;

图 6为本申请实施例四提供的一种在 D2D通信中更换组宣称信道资源和数据传输资源的方法的信令图； 6 is a signaling diagram of a method for replacing a group-declared channel resource and a data transmission resource in D2D communication according to Embodiment 4 of the present application;

图 7为本申请实施例五提供的一种在 D2D通信中更换组宣称信道资源和数据传输资源的方法的信令图； 7 is a signaling diagram of a method for replacing a group-declared channel resource and a data transmission resource in D2D communication according to Embodiment 5 of the present application;

图 8为本申请实施例六提供的一种在 D2D通信中建立用户组的组头的装置的结构图； 8 is a structural diagram of an apparatus for establishing a group header of a user group in D2D communication according to Embodiment 6 of the present application;

图 9为本申请实施例六提供的另一种在 D2D通信中建立用户组的组头的装置的结构图； FIG. 9 is a structural diagram of another apparatus for establishing a group header of a user group in D2D communication according to Embodiment 6 of the present application;

图 10为本申请实施例六提供的另一种在 D2D通信中建立用户组的组头的装置的结构图； FIG. 10 is a structural diagram of another apparatus for establishing a group header of a user group in D2D communication according to Embodiment 6 of the present application;

图 11为本申请实施例六提供的另一种在 D2D通信中建立用户组的组头的装置的结构图； FIG. 11 is a structural diagram of another apparatus for establishing a group header of a user group in D2D communication according to Embodiment 6 of the present application;

图 12为本发明的通讯装置的结构图。具体实施方式在本申请的技术方案中，用户组的组头并不是由各组员通过选举的方式而确定的，而是由基站直接确定的。也就是说，接入到基站覆盖的蜂窝小区中的任意一个 D2D设备如果想成一个目标用户组的组头，即可以向该基站发送一个请求消息，作为响应，基站就会为该 D2D设备分配其作为组头在发送组宣称信息时所使用的物理资源（该物理资源即为组宣称信道资源），并通过响应消息将该组宣称信道资源的位置标识通知给该 D2D设备。由于各用户组的组宣称信道资源是由基站统一分配的，因此，可以避免出现不同用户组的组宣称信道资源相互重叠的问题，进而也就可以避免不同用户组的 D2D通信相互干扰的问题。 Figure 12 is a block diagram of a communication device of the present invention. DETAILED DESCRIPTION In the technical solution of the present application, the group header of the user group is not determined by the manner in which each group member is elected, but is directly determined by the base station. That is, any D2D device accessing the cell covered by the base station may send a request message to the base station if it wants to be a group header of the target user group. In response, the base station allocates the D2D device. It is the group leader in the sending group The physical resource used when the information is called (the physical resource is the group-declared channel resource), and the location identifier of the group-declared channel resource is notified to the D2D device by using a response message. Since the group of each user group declares that the channel resources are uniformly allocated by the base station, the problem that the group claimed channel resources of different user groups overlap each other can be avoided, and thus the problem that the D2D communication of different user groups interfere with each other can be avoided.

下面结合附图及实施例，对本申请实施例进行详细描述。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。当一个 D2D设备驻留到一个蜂窝小区之后，通过读取该蜂窝小区的*** 广播消息，如， SIB (System Information Block, ***信息块）消息，来发现是否有自己感兴趣的用户组已经成立了。其中， ***广播消息会包含多个用户组（这些用户组都是由该蜂窝小区的基站负责管理的）的信息，如，至少包含有：各用户组的组名、各用户组的组标识（Group ID)和业务类型名称 (service name 如果该 D2D设备对其中某一个用户组感兴趣，并想成为该用户组的组头；或者，如果该 D2D设备没有感兴趣的用户组，而是想自己建立一个新用户组，并成为该新用户组的组头；再或者，如果***广播消息中不包含任何用户组的信息（即目前还没有成立的用户组），该 D2D设备想自己建立第一个用户组，并成为该第一个用户组的组头。当上述应用场景发生时，可以通过实施本申请的技术方案建立用户组的组头。实施例一 The embodiments of the present application are described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the application and are not intended to be limiting. After a D2D device camps on a cell, it can find out if there is a user group that is interested in it by reading a system broadcast message of the cell, such as a SIB (System Information Block) message. . The system broadcast message includes information of multiple user groups (these user groups are all managed by the base station of the cell), for example, at least: a group name of each user group, and a group identifier of each user group ( Group ID) and service type name (service name if the D2D device is interested in one of the user groups and wants to be the group header of the user group; or, if the D2D device does not have a user group of interest, but wants to own Establish a new user group and become the group header of the new user group; or, if the system broadcast message does not contain any user group information (that is, a user group that has not yet been established), the D2D device wants to establish the first one by itself. The user group is the group header of the first user group. When the application scenario occurs, the group of the user group can be established by implementing the technical solution of the present application.

请参阅图 1，其为本申请实施例一提供的一种在 D2D通信中建立用户组的组头的方法的流程图，包括以下步骤： Referring to FIG. 1, a flowchart of a method for establishing a group header of a user group in D2D communication according to Embodiment 1 of the present application includes the following steps:

步骤 101 : 基站接收用于将 D2D设备建立成为目标用户组的组头的第一请求消息，所述第一请求消息中至少携带有目标用户组的组标识和 D2D设备的设备标识； Step 101: The base station receives a first request message for establishing a D2D device as a group header of the target user group, where the first request message carries at least the group identifier of the target user group and the device identifier of the D2D device.

其中，设备标识指示的 D2D设备为接入到所述基站覆盖的蜂窝小区的任意一个 D2D设备。该 D2D设备的设备标识可以是该 D2D设备自己的一个标识，也可以是 C-RNTI, 还可以是核心网分配的一个标识。 The D2D device indicated by the device identifier is a cell that accesses the cell covered by the base station. Meaning a D2D device. The device identifier of the D2D device may be an identifier of the D2D device itself, or may be a C-RNTI, or may be an identifier assigned by the core network.

步骤 102: 基站为根据所述第一请求消息中的组标识和设备标识分别确定目标用户组以及目标用户组的组头，并为所述目标用户组分配用于组头向组员发送组宣称信息的组宣称信道资源； Step 102: The base station determines, respectively, a group header of the target user group and the target user group according to the group identifier and the device identifier in the first request message, and allocates, for the target user group, a group header to send a group claim to the group member. The group of information declares channel resources;

步骤 103: 基站发送用于将 D2D设备建立成为目标用户组的组头的第一响应消息，所述第一响应消息中至少携带有所述目标用户组的组标识和所述组宣称信道资源的位置标识。 Step 103: The base station sends a first response message for establishing a D2D device as a group header of the target user group, where the first response message carries at least the group identifier of the target user group and the group declared channel resource. Location identifier.

在本申请的一个优选实施方式中，基站还为所述目标用户组分配用于组头和组员传输数据的数据传输资源。 In a preferred embodiment of the present application, the base station further allocates data transmission resources for the group header and group member transmission data for the target user group.

因此，在第一响应消息中携带有数据传输资源的位置标识，所述组宣称信息还用于携带所述数据传输资源。 Therefore, the first response message carries a location identifier of the data transmission resource, and the group announcement information is further used to carry the data transmission resource.

D2D 设备根据组宣称信道资源的位置标识可以从物理资源中确定组宣称信道资源的位置，并作为该用户组的组头在确定的该组宣称信道资源上向该用户组的组员发送组宣称信息。当在组宣称信息中携带有数据传输资源的位置标识时，该用户的组员也就可以进一步获知数据传输资源的位置。 The D2D device may determine the location of the group-declared channel resource from the physical resource according to the location identifier of the group-declared channel resource, and send the group claim to the group member of the user group on the determined group-recommended channel resource as the group header of the user group. information. When the group declaration information carries the location identifier of the data transmission resource, the member of the user can further know the location of the data transmission resource.

另外，在本申请的一个优选实施方式中，在组宣称信息中还可以规定传输数据的方式，该方式包括但不限于数据的传输时间、使用数据传输资源的频率或周期、数据的业务类型，组员就会按照组头在组宣称信息中所规定的方式进行 D2D通信。 In addition, in a preferred embodiment of the present application, the manner of transmitting data may also be specified in the group claim information, including but not limited to the transmission time of the data, the frequency or period of using the data transmission resource, and the service type of the data. The team member will perform D2D communication in the manner specified by the group header in the group announcement information.

需要说明的是， "位置标识"是指用于指示无线资源的频率位置和时间位置的标识。具体地，在 LTE***中，频率位置是指子载波的编号或者 RB (资源块）的编号，时间位置是***帧号和每帧中的子帧编号。宣称信道可能是由多个 RB在多个子帧的时间长度组成的。 It should be noted that the "location identifier" refers to an identifier for indicating the frequency location and time position of the radio resource. Specifically, in the LTE system, the frequency position refers to the number of the subcarrier or the number of the RB (resource block), and the time position is the system frame number and the subframe number in each frame. It is claimed that the channel may be composed of multiple RBs in the length of time of multiple subframes.

在本申请的一个优选实施方式中，当建立了该用户组的组头之后，基站还可以在覆盖的蜂窝小区范围内广播 SIB消息，该 SIB消息中携带有所述目标用户组的组标识和所述组宣称信道资源的位置标识（如果基站为该用户组分配了数据传输资源， SIB 消息中还可以携带有数据传输资源的位置标识）。通过这种方式，基站可以告知位于自身覆盖的蜂窝小区范围的所有 D2D设备其负责哪些用户组，以及每个用户组所使用的组宣称信道资源（还可以进一步包括数据传输资源）。 In a preferred embodiment of the present application, after establishing the group header of the user group, the base station may also broadcast an SIB message in the coverage cell range, where the SIB message carries the group identifier of the target user group and The group declares a location identifier of the channel resource (if the base station allocates a data transmission resource for the user group, the SIB message may also carry a location identifier of the data transmission resource). In this way, the base station can inform all D2D devices located in the cell range covered by itself that it is responsible for Which user groups, and the groups used by each user group, declare channel resources (which may further include data transmission resources).

基站除了可以广播 SIB消息之外，也可以向接入到自身覆盖的蜂窝小区的所有 D2D设备发送专用信令，该专用信令中携带有所述目标用户组的组标识和所述组宣称信道资源的位置标识（同样， SIB消息中还可以进一步携带数据传输资源的位置标识）。 In addition to being able to broadcast the SIB message, the base station may also send the dedicated signaling to all the D2D devices that access the cell that it covers, and the dedicated signaling carries the group identifier of the target user group and the group declared channel. The location identifier of the resource (again, the SIB message can further carry the location identifier of the data transmission resource).

在本申请的另一个优选实施方式中，为了进一步保证建立的组头具有安全性，在基站为目标用户组分配组宣称信道资源之前，图 1所示的方法还包括：基站利用核心网网元验证所述目标用户组是否合法以及所述 D2D设备是否有资格成为所述目标用户组的组头；则步骤 102具体为：在验证通过时，基站为所述目标用户组分配用于组头向组员发送组宣称信息的组宣称信道资源。 In another preferred embodiment of the present application, in order to further ensure that the established group header is secure, before the base station allocates the group claim channel resource to the target user group, the method shown in FIG. 1 further includes: the base station uses the core network element Determining whether the target user group is legal and whether the D2D device is eligible to be the group header of the target user group. Step 102 is specifically: when the verification is passed, the base station allocates the target user group for the group head direction. The group member sends a group claiming information to the group to declare the channel resource.

当然，如果基站还为目标用户组分配数据传输资源，也需要在分配数据传输资源之前，执行上述验证过程，并在验证通过后，才为目标用户组分配数据传输资源。 Of course, if the base station also allocates data transmission resources to the target user group, it also needs to perform the above verification process before allocating the data transmission resources, and allocate the data transmission resources to the target user group after the verification is passed.

由上述实施例可以看出，与现有技术相比，本实施例的技术方案具有如下优点： As can be seen from the above embodiments, the technical solution of the embodiment has the following advantages compared with the prior art:

基站响应 D2D设备的请求，为该 D2D设备分配当其作为组头时向组员发送组宣称信息所使用的组宣称信道资源， SP , 用户组的组宣称信道资源是由基站统一规划并分配的，因此，可以避免出现不同用户组的组宣称信道资源相互重叠的问题，进而也就可以避免不同用户组的 D2D通信相互干扰的问题。除此之外，基站还为目标用户组统一规划并分配用于传输数据的数据传输资源，避免组员对相同的数据传输资源进行抢占，提高了资源利用率。 The base station responds to the request of the D2D device, and allocates the group declared channel resource used by the D2D device to send the group claim information to the group member when it is the group header, SP, and the group of the user group declares that the channel resource is uniformly planned and allocated by the base station. Therefore, the problem that the groups of different user groups claim that the channel resources overlap each other can be avoided, and thus the problem that the D2D communication of different user groups interfere with each other can be avoided. In addition, the base station uniformly plans and allocates data transmission resources for transmitting data for the target user group, thereby preventing the group members from preempting the same data transmission resources and improving resource utilization.

并且，确定组头的整个过程仅涉及基站与作为组头的 D2D设备之间的信令交互，同时也节省了信令开销，避免了***资源在信令开销上的浪费。当然，组头是不固定的，可以在多个 D2D设备之间轮换，而无论哪个 D2D设备作为组头，都会节省信令开销，避免浪费。 Moreover, the entire process of determining the group header involves only the signaling interaction between the base station and the D2D device as the group header, and also saves signaling overhead, thereby avoiding waste of system resources in signaling overhead. Of course, the group header is not fixed and can be rotated between multiple D2D devices, and no matter which D2D device is used as a group header, signaling overhead is saved and waste is avoided.

进一步的，还解决了在建立用户组的组头时，由于未对组头进行验证而存在的安全性问题。实施例 Further, the security problem that exists when the group header of the user group is established is verified because the group header is not verified. Example

基于实施一中所描述的方法，本实施例二提供了实现该方法的一种信令流程。请参阅图 2所示，其为本申请实施例二提供的一种在 D2D通信中建立用户组的组头的方法的信令图。其中， Based on the method described in the first embodiment, the second embodiment provides a signaling process for implementing the method. Referring to FIG. 2, it is a signaling diagram of a method for establishing a group header of a user group in D2D communication according to Embodiment 2 of the present application. among them,

步骤 201： eNB接收 D2D设备发送的 start PS communication request消息；在 start PS communication request 消息中携带有某一个用户组的组标识 (Group ID) 和 D2D设备的设备标识 (UE ID), eNB从 start PS communication request消息中获取 Group ID和 UE ID。 Step 201: The eNB receives a start PS communication request message sent by the D2D device. The start PS communication request message carries a group ID (Group ID) of a certain user group and a device identifier (UE ID) of the D2D device, and the eNB starts from the start PS. The group ID and the UE ID are obtained in the communication request message.

步骤 202： eNB向核心网网元发送 group inquire request消息； Step 202: The eNB sends a group inquire request message to the core network element.

在 group inquire request消息中携带有 Group ID和 UE ID，核心网网元从 group inquire request消息中提取 Group ID和 UE ID, 验证该 Group ID指示的用户组是否合法，并且验证该 UE ID指示的 D2D设备是否有资格成为该用户组的组头（如果该用户组已经建立），或者，验证该 UE ID指示的 D2D设备是否有资格建立该用户组并成为该用户组的组头（如果该用户组没有建立）。 The group inquire request message carries the group ID and the UE ID, and the core network element extracts the group ID and the UE ID from the group inquire request message, verifies whether the user group indicated by the group ID is legal, and verifies the D2D indicated by the UE ID. Whether the device is eligible to be the group header of the user group (if the user group has been established), or to verify whether the D2D device indicated by the UE ID is eligible to establish the user group and become the group header of the user group (if the user group Not established).

当然，如果步骤 201中的 D2D设备想要成为该用户组的成员，核心网网元还可以验证该 UE ID指示的 D2D设备是否有资格成为该用户组的成员。 Of course, if the D2D device in step 201 wants to be a member of the user group, the core network element may also verify whether the D2D device indicated by the UE ID is eligible to be a member of the user group.

另外，考虑到组头必须在位置合适的情况下才可以和所有的其它组员进行通信，核心网网元还可以对该 D2D设备的位置进行验证，以确定其是否有资格成为组头。据此，在 Start PS communication request消息中还可以携带该 D2D 设备的位置信息（例如，经度、维度和高度等信息）。 In addition, the core network element can also verify the location of the D2D device to determine if it is qualified to be the group header, considering that the group header must be able to communicate with all other group members when the location is appropriate. Accordingly, the location information of the D2D device (for example, information such as longitude, dimension, and altitude) can also be carried in the Start PS communication request message.

还有，考虑到组头的处理量比其它组员多，如果组头的电量不充足，就会频繁地更换组头，这会使组员之间的通信造成中断，最终导致服务质量比较差，核心网网元还可以对该 D2D设备的剩余电量进行验证，以确定其是否有资格成为组头。据此，在 start PS communication request消息中还可以携带该 D2D 设备的剩余电量（例如，使用时间、瓦 *时或者 **安培）。 Also, considering that the processing capacity of the group head is more than that of other group members, if the power of the group head is insufficient, the group head will be frequently replaced, which will cause the communication between the group members to be interrupted, resulting in poor service quality. The core network element can also verify the remaining power of the D2D device to determine whether it is eligible to be the group header. According to this, the remaining power of the D2D device (for example, usage time, watt hour or ** amp) can also be carried in the start PS communication request message.

显然，该 D2D设备的位置信息和剩余电量为 start PS communication request 消息中的可选字段。 Obviously, the location information and remaining power of the D2D device are optional fields in the start PS communication request message.

步骤 203 : 在验证通过的情况下，核心网网元回应 eNB—个 group inquire response消息；在 group inquire response消息中指明验证通过，甚至还可以进一步在该 group inquire response消息中携带该用户组的组员名单。 Step 203: In case the verification is passed, the core network element responds to the eNB-group inquire response message; In the group inquire response message, the authentication is passed, and the group member list of the user group may be further carried in the group inquire response message.

进一步的，在 group inquire response消息中还可以携带该用户组的 Qos (Quality Of Service, 服务质量）参数或者参数组。其中， Qos参数组至少包括语音的 Qos参数。本申请中的 Qos参数与蜂窝通信中的 Qos参数不同，包含最低传输速率，发送者的覆盖范围和丢包率。发送者的覆盖范围可以是个绝对值，也可以是保证达到一定的丢包率的覆盖范围，或者，还可以是在保证在最低传输速率下的覆盖范围。丢包率：第一种解释是在规定的最大覆盖范围处，接收者的丢包率；第二种解释是在覆盖范围内所有的接收者的丢包率的最低值。如果该用户组支持多种业务类别，如 FTP或者视频通话等业务时，每一种业务类别就会有一组 Qos参数。 Further, the group inquire response message may further carry a Qos (Quality Of Service) parameter or a parameter group of the user group. The Qos parameter group includes at least the Qos parameter of the voice. The Qos parameter in this application is different from the Qos parameter in cellular communication, including the lowest transmission rate, sender's coverage and packet loss rate. The sender's coverage can be an absolute value, or it can be guaranteed to reach a certain packet loss rate, or it can be guaranteed to be at the lowest transmission rate. Packet loss rate: The first explanation is the receiver's packet loss rate at the specified maximum coverage; the second explanation is the lowest value of the packet loss rate of all receivers within the coverage. If the user group supports multiple service categories, such as FTP or video call, each service category will have a set of Qos parameters.

当然，核心网网元也可以通过其它的消息向 eNB发送该用户组的 Qos参数或参数组。 eNB会根据 group inquire response消息中的 Qos参数来为该用户组中的各成员（包括组头和组员）分配组宣称信道资源和数据传输资源。即，给该用户组分配频率和时间资源。可能的情况下， eNB还会分配 D2D通信所使用的组扰码和组同步码等信息。 Of course, the core network element may also send the Qos parameter or parameter group of the user group to the eNB through other messages. The eNB allocates a group-declared channel resource and data transmission resource for each member (including the group header and the group member) in the user group according to the Qos parameter in the group inquire response message. That is, the user group is assigned frequency and time resources. When possible, the eNB also allocates information such as the group scrambling code and group synchronization code used for D2D communication.

为了提高资源分配效率， eNB可以预先为某一个用户组配置好组宣称信道资源，但是，由于 eNB没有收到关于该用户组的组建立或者 D2D终端有通信需求的请求之前， eNB并不会分配给该用户组。只有在 eNB收到关于该用户组的组建立或者 D2D终端有通信需求的请求，并且核心网确认之后，才将预先配置好的组宣称信道资源分配给 D2D组使用。 In order to improve resource allocation efficiency, the eNB may pre-configure a group-declared channel resource for a certain user group. However, the eNB does not allocate the eNB until the eNB does not receive a request for the group establishment of the user group or the D2D terminal has a communication request. Give this user group. The pre-configured group-declared channel resources are allocated to the D2D group for use only after the eNB receives a request for group establishment of the user group or a communication request of the D2D terminal, and the core network confirms.

当然，除此之外，还要为该 D2D设备分配用户面数据协议的配置参数，其中包括 MAC (Medium Access Control, 媒体接入控制）、 RLC (Radio Link Control, 无线链路控制）、 PDCP (Packet Data Convergence Protocol, 包汇聚协议）和 PHY (physical layer, 物理层）配置参数。 Of course, in addition to this, the D2D device is also assigned configuration parameters of the user plane data protocol, including MAC (Medium Access Control), RLC (Radio Link Control), and PDCP ( Packet Data Convergence Protocol, PHY (physical layer) configuration parameters.

考虑到一个用户组的部分成员有可能不在 eNB 的覆盖之下，因此， D2D 设备的用户面数据协议的配置参数有可能是预定义在 D2D设备内部的。这些预定义的配置参数可以通过参数组的类别号进行标识，而这些类别号与 eNB 从 MME得到的某一个业务类别的 Qos参数组的业务类别号是一一对应的。步骤 204 : 当资源和参数分配完后， eNB 回应 D2D 设备一个 group establishment response消息； Considering that some members of a user group may not be under the coverage of the eNB, the configuration parameters of the user plane data protocol of the D2D device may be predefined inside the D2D device. These predefined configuration parameters may be identified by the category number of the parameter group, and the category numbers are in one-to-one correspondence with the service category numbers of the Qos parameter group of a certain service category obtained by the eNB from the MME. Step 204: After the resources and parameters are allocated, the eNB responds to the D2D device with a group establishment response message;

在 group establishment response消息中携带有 Group ID、组宣称信道资源的位置标识和数据传输资源的位置标识（组宣称信道资源和数据传输资源是 eNB根据各业务类别的 Qos参数分配的）。可选的， eNB也发送用户面数据协议的配置参数。 The group establishment response message carries the group ID, the location identifier of the group-declared channel resource, and the location identifier of the data transmission resource (the group claims that the channel resource and the data transmission resource are allocated by the eNB according to the Qos parameter of each service category). Optionally, the eNB also sends configuration parameters of the user plane data protocol.

D2D 设备根据组宣称信道资源的位置标识确定组宣称信道资源，并在该组宣称信道资源上发送组宣称信息，在该组宣称信息中携带有数据传输资源的位置标识，以便该目标用户组的其它组员可以获知数据传输资源。可选的，可能也携带用户面数据协议的配置参数。 The D2D device determines the group-declared channel resource according to the location identifier of the group-declared channel resource, and sends the group claim information on the group-declared channel resource, where the group information includes the location identifier of the data transmission resource, so that the target user group Other team members can learn about data transmission resources. Optionally, the configuration parameters of the user plane data protocol may also be carried.

可选的，当在 D2D设备上没有预先定义用户面数据协议的配置参数时，该组宣称信息中还可以携带用户面数据协议的配置参数。 Optionally, when the configuration parameter of the user plane data protocol is not predefined on the D2D device, the group declaration information may further carry configuration parameters of the user plane data protocol.

另外， D2D 设备根据用户面数据协议的配置参数配置接入层协议栈的实体参数，根据数据传输资源的位置标识配置发送 /接收 D2D通信数据所用的物理信道。 In addition, the D2D device configures the physical parameters of the access layer protocol stack according to the configuration parameters of the user plane data protocol, and configures the physical channel used for transmitting/receiving the D2D communication data according to the location identifier of the data transmission resource.

步骤 205 : eNB在覆盖的蜂窝小区范围内广播 SIB消息。 Step 205: The eNB broadcasts the SIB message within the coverage cell range.

eNB可以在发送 group establishment response 消息的同时，广播该 SIB消息。也可以在发送 group establishment response 消息之后，广播该 SIB消息。 The eNB may broadcast the SIB message while transmitting the group establishment response message. The SIB message can also be broadcast after the group establishment response message is sent.

其中，在该 SIB消息中携带有该目标用户组的组标识和组宣称信道资源的位置标识。 The SIB message carries the group identifier of the target user group and the location identifier of the group claim channel resource.

当然，除了广播 SIB消息之外， eNB也可以向接入到自身覆盖的蜂窝小区的所有 D2D设备发送一个专用信令。 Of course, in addition to broadcasting SIB messages, the eNB may also send a dedicated signaling to all D2D devices accessing the cell's own coverage cell.

基站响应 D2D设备的请求，为该 D2D设备分配当其作为组头时向组员发送组宣称信息所使用的组宣称信道资源， SP , 用户组的组宣称信道资源是由基站统一规划并分配的，因此，可以避免出现不同用户组的组宣称信道资源相互重叠的问题，进而也就可以避免不同用户组的 D2D通信相互干扰的问题。除此之外，基站还为目标用户组统一规划并分配用于传输数据的数据传输资源，避免组员对相同的数据传输资源进行抢占，提高了资源利用率。 The base station responds to the request of the D2D device, and allocates the group declared channel resource used by the D2D device to send the group claim information to the group member when it is the group header, SP, and the group of the user group declares that the channel resource is uniformly planned and allocated by the base station. Therefore, the problem that the groups of different user groups claim that the channel resources overlap each other can be avoided, and thus the problem that the D2D communication of different user groups interfere with each other can be avoided. In addition, the base station uniformly plans and allocates data transmission resources for transmitting data for the target user group. Avoid group members to preempt the same data transmission resources and improve resource utilization.

另外，验证的过程只在 eNB与核心网网元之间发生，这样可以方便 eNB 对验证结果进行保存。一旦该 D2D设备离开该用户组之后，如果又有另一个 D2D设备要求成立该用户组并成为组头， eNB可以不必再利用核心网对该用户组是否合法进行验证。实施例三 In addition, the verification process only takes place between the eNB and the core network element, which facilitates the eNB to save the verification result. After the D2D device leaves the user group, if another D2D device requests another user group to become the group header, the eNB can no longer use the core network to verify whether the user group is legal. Embodiment 3

通过上述实施例二， eNB将其覆盖的蜂窝小区中的任意一个 D2D设备建立为一个用户组的组头，并且，一旦建立后，该 D2D设备始终为该用户组的组头，而 eNB分配的组宣称信道资源和数据传输资源也始终都处于激活状态。 Through the foregoing embodiment 2, the eNB establishes any D2D device in the cell that it covers as a group header of a user group, and once established, the D2D device is always the group header of the user group, and the eNB allocates The group claims that channel resources and data transmission resources are also always active.

本实施例三与实施例二不同的是， eNB 先将其覆盖的蜂窝小区中的所有 The third embodiment differs from the second embodiment in that all the cells in the cell that the eNB first covers

D2D设备建立为一个用户组的预备组头，此时， eNB分配的组宣称信道资源和数据传输资源都处于非激活状态。在所有预备组头中，如果有哪个预备组头需要传输数据，就可以请求 eNB激活组宣称信道资源和数据传输资源此时，需要传输数据的预备组头成为正式组头。数据传输完毕后，正式组头再请求 eNB去激活组宣称信道资源和数据传输资源，正式组头重新变为预备组头。也就是说，哪个预备组头需要传输数据，哪个预备组头就可以称为正式组头。因此，正式组头是在多个预备组头之间轮流切换的。 The D2D device is established as a preliminary group header of a user group. At this time, the group allocated by the eNB declares that the channel resource and the data transmission resource are in an inactive state. In all the preliminary group headers, if any of the preliminary group headers needs to transmit data, the eNB activation group may be requested to declare channel resources and data transmission resources. At this time, the preliminary group headers that need to transmit data become the official group header. After the data transmission is completed, the official group first requests the eNB to deactivate the group to declare the channel resource and the data transmission resource, and the official group header becomes the preliminary group header again. That is to say, which preliminary group header needs to transmit data, and which preliminary group header can be called a formal group header. Therefore, the official group header is alternately switched between multiple preliminary group headers.

参见图 2所示，在执行完步骤 201-205之后，所有发起请求的 D2D设备此时仅仅为预备组头，并且， eNB所分配的组宣称信道资源和数据传输资源此时也处于非激活状态，也就是说，该 D2D设备只是知道了宣称宣称信道资源和数据传输资源的位置信息，但是不能立即使用，只能是在 D2D设备称为正式组头的时候才能使用。 Referring to FIG. 2, after performing steps 201-205, all D2D devices that initiate the request are only the preliminary group header at this time, and the group allocated by the eNB declares that the channel resource and the data transmission resource are also inactive at this time. That is to say, the D2D device only knows the location information of the claimed channel resource and the data transmission resource, but cannot be used immediately, and can only be used when the D2D device is called the official group header.

当某一个 D2D设备有数据发送或接收的需求时，该 D2D设备向 eNB请求激活组宣称信道资源和数据传输资源，具体方法是： 1 ) 该 D2D设备向 eNB发送激活请求消息，在该激活请求消息中携带有用于指示激活的比特位（例如，比特位为 1时表示激活，为 0时表示去激活）；基站接收到激活请求消息后，激活组宣称信道资源和数据传输资源，并返回激活响应消息，此时，该 D2D设备从预备组头变成正式组头。 When a D2D device has a request for data transmission or reception, the D2D device requests an activation group to declare a channel resource and a data transmission resource from the eNB, by: 1) The D2D device sends an activation request message to the eNB, where the activation request message carries a bit for indicating activation (for example, when the bit is 1, it indicates activation, when it is 0, it indicates deactivation); and the base station receives the activation request. After the message, the activation group declares the channel resource and the data transmission resource, and returns an activation response message. At this time, the D2D device changes from the preliminary group header to the official group header.

2) 该 D2D向 eNB发送一个 D2D专用的 SR (Source Request) 信号，这个 SR信号用于请求激活组宣称信道资源和数据传输资源， eNB接收到 SR信号之后，激活组宣称信道资源和数据传输资源，此时，该 D2D设备从预备组头变成正式组头。 2) The D2D sends a D2D dedicated SR (Source Request) signal to the eNB. The SR signal is used to request the activation group to declare the channel resource and the data transmission resource. After receiving the SR signal, the eNB activates the group to declare the channel resource and the data transmission resource. At this time, the D2D device changes from the preliminary group header to the official group header.

相应的，当该 D2D设备完成发送或接收数据之后，该 D2D设备向 eNB 发送去激活请求消息（通过比特位来指示），基站接收到去激活请求消息后，去激活组宣称信道资源和数据传输资源，并返回去激活响应消息，此时，该 D2D设备从正式组头变成预备组头。或者，该 D2D设备向 eNB发送 SR信号，请求基站去激活组宣称信道资源和数据传输资源，基站接收到 SR信号，并去激活组宣称信道资源和数据传输资源。实施例四 Correspondingly, after the D2D device finishes transmitting or receiving data, the D2D device sends a deactivation request message (indicated by a bit) to the eNB, and after receiving the deactivation request message, the base station deactivates the group to declare channel resources and data transmission. The resource, and returns a deactivation response message, at which point the D2D device changes from the official group header to the preliminary group header. Alternatively, the D2D device sends an SR signal to the eNB, requesting the base station to deactivate the group to declare the channel resource and the data transmission resource, the base station receives the SR signal, and deactivates the group to declare the channel resource and the data transmission resource. Embodiment 4

在 D2D设备成为目标用户组的组头之后，如果组头发现其所在的目标用户组的通信资源受到比较严重的干扰，或者，如果组头发现其已经移动到邻区，就会向基站发起通信资源的更换流程。其中，组头移动到邻区存在两种情况，一种情况是目标用户组的所有成员（包括组头在内）从都移动到了邻小区，如图 3所示，所有成员都从小区 1移动到了小区 2; 另一种情况是目标用户组的部分成员（包括组头在内）移动到了邻小区，如图 4所示，部分成员从小区 1 移动到了小区。 After the D2D device becomes the group header of the target user group, if the group header finds that the communication resource of the target user group in which it is located is seriously interfered, or if the group header finds that it has moved to the neighboring cell, it will initiate communication to the base station. The process of replacing resources. There are two cases in which the group header moves to the neighboring cell. In one case, all members of the target user group (including the group header) move from the neighboring cell to the neighboring cell. As shown in FIG. 3, all members move from the cell 1. Go to cell 2; in another case, some members of the target user group (including the group header) move to the neighboring cell. As shown in Figure 4, some members move from cell 1 to cell.

请参阅图 5，其为本申请实施例三提供的一种在 D2D通信中更换组宣称信道资源的方法的流程图，该方法实施在实施例一中的方法之后，具体包括如下步骤： Referring to FIG. 5, it is a flowchart of a method for replacing a group-declared channel resource in a D2D communication according to Embodiment 3 of the present application. After the method is implemented in the method in Embodiment 1, the method includes the following steps:

步骤 501 : 基站接收所述目标用户组的组头发送的更换所述组宣称信道资源的第二请求消息，所述第二请求消息中至少携带有所述目标用户组的组标识和所述组头的设备标识；该目标用户组的组头在监测到该目标用户组的组通信质量小预设的门限值时向基站发送第二请求消息。例如，组头可以对 IOT ( Interference Over Thermal noise, 干扰与热噪声的比值）、 PER (Packet Error Rate, 包误码率）或 BLER (Block Error Rate, 块误码率）进行监测，当 IOT、 PER或 BLER小于对应的一个预设的门限值时，说明此时组通信质量比较差，通信资源受到了比较严重的干扰。 Step 501: The base station receives a second request message that is sent by the group header of the target user group, and replaces the group claim channel resource, where the second request message carries at least the group identifier of the target user group and the group. Head device identification; The group header of the target user group sends a second request message to the base station when monitoring the threshold of the group communication quality of the target user group is small. For example, the group header can monitor IOT (Interference Over Thermal noise), PER (Packet Error Rate) or BLER (Block Error Rate), when IOT, When the PER or the BLER is smaller than the corresponding one of the preset thresholds, the communication quality of the group is relatively poor, and the communication resources are seriously interfered.

除此之外，该目标用户组的组头还可以在发起小区切换时向基站发送第二请求消息。所述第二请求消息具体为切换过程中的 RRC radio reconfiguration complete消息。 In addition, the group header of the target user group may also send a second request message to the base station when initiating a cell handover. The second request message is specifically an RRC radio reconfiguration complete message in the handover process.

步骤 502: 基站为所述目标用户组更换所述组宣称信道资源； Step 502: The base station replaces the group declared channel resource for the target user group.

为了方便基站更换资源，在第二请求消息中还可以携带有被干扰资源的位置标识（即，组宣称信道资源的位置标识），以及组头认为干扰少的各个资源的位置标识。这样，基站在确定被干扰资源和干扰少的各个资源之后，就可以根据被干扰资源、干扰少的各个资源以及自己调用蜂窝用户的需求，来决定哪些资源可以作为新资源。 In order to facilitate the replacement of the resources by the base station, the second request message may also carry the location identifier of the interfered resource (ie, the location identifier of the group claiming the channel resource), and the location identifier of each resource that the group header considers to have less interference. In this way, after determining the interfered resources and the resources with less interference, the base station can decide which resources can be used as new resources according to the interfered resources, the resources with less interference, and the needs of the cellular users themselves.

需要说明的是，基站可以采用现有技术中的任意一种决策方法来确定哪些资源为新资源，本申请该决策方法的具体实现方式不做限定。 It should be noted that the base station may use any one of the prior art to determine which resources are new resources. The specific implementation manner of the decision method in this application is not limited.

步骤 503：基站向所述目标用户组的组头发送更换所述组宣称信道资源的第二响应消息，所述第二响应消息中至少携带有更换后的组宣称信道资源的位置标识。 Step 503: The base station sends a second response message that replaces the group-declared channel resource to the group header of the target user group, where the second response message carries at least the location identifier of the replaced group-declared channel resource.

上述方式也同样适用于只更换数据传输资源，以及同时更换组宣称信道资源和数据传输资源。 The above method is also applicable to replacing only data transmission resources, and simultaneously replacing the group to claim channel resources and data transmission resources.

基站还可以通过 X2接口消息将该目标用户组当前占用的组宣称信道资源通知给临近的基站。以避免临近的基站将相同的组宣称信道资源分配给其它的 D2D 设备。该通知方式也同样适用于数据传输资源，以便临近的基站将相同的数据传输资源分配给其它的 D2D设备。 The base station may also notify the neighboring base station of the group-declared channel resources currently occupied by the target user group through the X2 interface message. To avoid neighboring base stations assigning the same group of declared channel resources to other D2D devices. The notification method is also applicable to data transmission resources, so that adjacent base stations allocate the same data transmission resources to other D2D devices.

对于该目标用户组的组头而言，其可以使用更换前的组宣称信道资源向其它组员发送一个消息，并在该消息中携带更换后的数据传输资源的位置标识，该消息还可以进一步携带更换后的数据传输资源的生效时间。另外，组头还会在更换后的组宣称信道资源发送组宣称信息。 For the group header of the target user group, it may use the pre-replacement group to declare a channel resource to send a message to other group members, and carry the location identifier of the replaced data transmission resource in the message, and the message may further The effective time of carrying the replaced data transmission resource. In addition, the group head will still The replaced group declares the channel resource to send the group claim information.

除了分配用户组的组宣称信道资源和物理资源之外，基站也负责对其进行更换。同样可以避免不同用户组的组宣称信道资源和物理资源之间发生重叠，进而避免不同用户组的 D2D通信相互干扰的问题。 In addition to allocating the group of user groups to claim channel resources and physical resources, the base station is also responsible for replacing them. It is also possible to prevent groups of different user groups from claiming overlap between channel resources and physical resources, thereby avoiding the problem that D2D communication of different user groups interfere with each other.

并且，整个更换过程也仅涉及基站与组头之间的信令交互，同时也节省了信令开销，避免了***资源在信令开销上的浪费。实施例五 Moreover, the entire replacement process only involves signaling interaction between the base station and the group header, and also saves signaling overhead, thereby avoiding waste of system resources in signaling overhead. Embodiment 5

下面以组头发现其所在的目标用户组的通信资源受到比较严重的干扰为例说明更换组宣称信道资源和数据传输资源的流程。请参阅图 6，其为本申请实施例四提供的一种在 D2D通信中更换通信资源的方法的信令图。其中，步骤 601 : 组头根据对组通信质量的监测，向 eNB 发送 group resource change request消息； In the following, the group header finds that the communication resources of the target user group in which the group is located is subjected to relatively serious interference as an example to illustrate the flow of the replacement group claiming channel resources and data transmission resources. Please refer to FIG. 6, which is a signaling diagram of a method for replacing communication resources in D2D communication according to Embodiment 4 of the present application. Step 601: The group header sends a group resource change request message to the eNB according to the monitoring of the group communication quality.

在 group resource change request消息中携带有 UE ID、 Group ID、被干扰资源的位置标识和干扰少的各资源的位置标识。 The group resource change request message carries the UE ID, the group ID, the location identifier of the interfered resource, and the location identifier of each resource with less interference.

eNB根据 Group resource change request消息中的字段，以及自己调度蜂窝用户的需求，决定新的组宣称信道资源和数据传输资源。 The eNB determines the new group to declare channel resources and data transmission resources according to the fields in the Group resource change request message and the requirements of the own scheduling cellular users.

步骤 602： eNB向组头返回 group resource change response消息；在 group resource change response消息中携带有更换后的组宣称信道资源的位置标识和更换后的数据传输资源的位置标识，以便组头根据位置标识确定更换后的组宣称信道资源和更换后的数据传输资源。 Step 602: The eNB returns a group resource change response message to the group header. The group resource change response message carries the location identifier of the replaced group claimed channel resource and the location identifier of the replaced data transmission resource, so that the group header is identified according to the location identifier. Determine the replaced group's declared channel resources and the replaced data transmission resources.

除此之夕卜，在 group resource change response消息中还可以携带有如下任意一个或任意多个组合的可选字段：更换后的组宣称信道资源和数据传输资源的生效时间、用户面数据协议的配置参数和组通信质量的上报方式。当 Group resource change response消息中不携带上述可选字段时，组头可以采用自身的缺省值。 In addition, the group resource change response message may also carry an optional field of any one or any combination of the following: the changed group claims the channel resource and the data transmission resource effective time, and the user plane data protocol The configuration parameters and the way the group communication quality is reported. When the optional field is not carried in the Group resource change response message, the group header can adopt its own default value.

步骤 603 : 组头在更换前的数据传输资源上发送 resource handover消息；在 resource handover消息中携带有更换后的数据传输资源的位置标识。该用户组的其它组员根据位置标识可以确定更换后的数据传输资源，以便当更换后的数据传输资源的生效时间到达后，根据更换后的数据传输资源配置发送 / 接收数据的物理信道。 Step 603: The group header sends a resource handover message on the data transmission resource before the replacement; The resource handover message carries the location identifier of the replaced data transmission resource. The other group members of the user group can determine the replaced data transmission resource according to the location identifier, so that when the effective time of the replaced data transmission resource arrives, the physical channel for transmitting/receiving data is configured according to the replaced data transmission resource.

组头会周期性发送 resource handover消息，以便所有的组员都能够完全正确地接收到 resource handover消息。 The group header periodically sends a resource handover message so that all the members can receive the resource handover message completely and correctly.

步骤 604: 组头在更换后的组宣称信道资源上发送组宣称信息。 Step 604: The group header sends the group claim information on the replaced group claim channel resource.

在更换后的组宣称信道资源的生效时间到达后，组头就可以在更换后的组宣称信道资源上发送组宣称信息。 After the replaced group declares that the effective time of the channel resource arrives, the group header can send the group claim information on the replaced group claim channel resource.

步骤 605： eNB通过 X2接口向邻近的基站（即， N-eNB )发送 group response change indication消息； Step 605: The eNB sends a group response change indication message to the neighboring base station (ie, the N-eNB) through the X2 interface.

在 group response change indication消息中携带有更换后的数据传输资源的位置标识，以便将目标用户组当前占用的数据传输资源通知给临近的基站。 The group response change indication message carries the location identifier of the replaced data transmission resource, so as to notify the neighboring base station of the data transmission resource currently occupied by the target user group.

需要说明的是， eNB在决定了新的数据传输资源之后，就可以向邻近的基站发送 group response change indication消息。 gp，步骤 602和步骤 605之间没有先后顺序关系。 It should be noted that after determining the new data transmission resource, the eNB may send a group response change indication message to the neighboring base station. Gp, there is no order relationship between step 602 and step 605.

步骤 606: eNB在覆盖的蜂窝小区范围内广播 SIB消息。 Step 606: The eNB broadcasts the SIB message within the coverage of the coverage cell.

在该 SIB消息中除了携带有该目标用户组的组标识之外，还携带有更换后的组宣称信道资源的位置标识。 In addition to the group identifier of the target user group, the SIB message carries the location identifier of the replaced group claim channel resource.

还需要说明的是， eNB在向组头返回 group resource change response消息之后，就可以广播该 SIB消息。 gp，步骤 606和步骤 603之间没有先后顺序关当然，除了广播 SIB消息之外， eNB也可以向接入到自身覆盖的蜂窝小区的所有 D2D设备发送一个专用信令。 It should also be noted that after the eNB returns a group resource change response message to the group header, the eNB can broadcast the SIB message. Gp, there is no sequence between step 606 and step 603. Of course, in addition to broadcasting SIB messages, the eNB may also send a dedicated signaling to all D2D devices accessing the cell area covered by itself.

如果组头是在发现其已经移动到邻区的情况下发起通信资源的更换流程，那么，在上述步骤 601中，组头向目标 eNB (即， T-eNB )发送 group resource change request消息。另夕卜，在上述步骤 605中，由目标 eNB向源 eNB (即， S-eNB ) 发送 group response change indication消息。 If the group header initiates a replacement procedure of the communication resource when it finds that it has moved to the neighboring cell, then in the above step 601, the group header sends a group resource change request message to the target eNB (ie, the T-eNB). In addition, in the above step 605, the target eNB sends a group response change indication message to the source eNB (i.e., the S-eNB).

由上述实施例可以看出，与现有技术相比，本实施例的技术方案具有如下优点： It can be seen from the above embodiment that the technical solution of this embodiment has the following advantages compared with the prior art. Advantages:

并且，整个更换过程也仅涉及基站与组头之间的信令交互，同时也节省了信令开销，避免了***资源在信令开销上的浪费。实施例六 Moreover, the entire replacement process only involves signaling interaction between the base station and the group header, and also saves signaling overhead, thereby avoiding waste of system resources in signaling overhead. Embodiment 6

除了组头可以向基站发起一个通信资源的更换流程之外，基站也可以向组头发起一个组宣称信道资源和数据传输资源的更换流程。例如，基站根据负荷情况、 D2D 设备的移动情况或者组通信质量决定向组头发起一个资源的更换流程。 In addition to the group header can initiate a communication resource replacement procedure to the base station, the base station can also send a group to the group to declare the replacement process of the channel resource and the data transmission resource. For example, the base station determines a resource replacement procedure for the group hair based on the load situation, the movement of the D2D device, or the quality of the group communication.

请参阅图 7，其为本申请实施例五提供的一种在 D2D通信中更换组宣称信道资源和数据传输资源的方法的信令图。其中， Referring to FIG. 7, FIG. 7 is a signaling diagram of a method for replacing a group claim channel resource and a data transmission resource in D2D communication according to Embodiment 5 of the present application. among them,

步骤 701 : eNB在为目标用户组更换组宣称信道资源和数据传输资源后，向组头发送 group resource change request消息； Step 701: After the eNB announces the channel resource and the data transmission resource for the target user group, the eNB sends a group resource change request message to the group header.

在 group resource change request消息中携带有更换后的组宣称信道资源的位置标识和更换后的数据传输资源的位置标识。 The group resource change request message carries the location identifier of the replaced group claim channel resource and the location identifier of the replaced data transmission resource.

步骤 702：组头向 eNB返回 group resource comfirm消息； Step 702: The group header returns a group resource comfirm message to the eNB.

步骤 703 : 组头在更换前的数据传输资源上发送 resource handover消息；在 resource handover消息中携带有更换后的数据传输资源的位置标识。该用户组的其它组员根据位置标识可以确定更换后的数据传输资源，以便当更换后的数据传输资源的生效时间到达后，根据更换后的数据传输资源配置发送 / 接收数据的物理信道。 Step 703: The group header sends a resource handover message on the data transmission resource before the replacement; the resource handover message carries the location identifier of the replaced data transmission resource. The other group members of the user group can determine the replaced data transmission resource according to the location identifier, so that when the effective time of the replaced data transmission resource arrives, the physical channel for transmitting/receiving data is configured according to the replaced data transmission resource.

组头会周期性地发送 resource handover消息。 The group header periodically sends a resource handover message.

步骤 704: 组头在更换后的组宣称信道资源上发送组宣称信息。 Step 704: The group header sends the group announcement information on the replaced group claimed channel resource.

步骤 705： eNB通过 X2接口向邻近的基站（即， N-eNB )发送 group response change indication消息； Step 705: The eNB sends a group response to the neighboring base station (ie, the N-eNB) through the X2 interface. Change indication message;

步骤 706: eNB在覆盖的蜂窝小区范围内广播 SIB消息。 Step 706: The eNB broadcasts the SIB message within the coverage cell range.

并且，整个更换过程也仅涉及基站与组头之间的信令交互，同时也节省了信令开销，避免了***资源在信令开销上的浪费。实施例七 Moreover, the entire replacement process only involves signaling interaction between the base station and the group header, and also saves signaling overhead, thereby avoiding waste of system resources in signaling overhead. Example 7

与一种在 D2D通信中建立用户组的组头的方法相对应，本申请实施例还提供了一种在 D2D通信中建立用户组的组头的装置。请参阅图 8，其为本申请实施例六提供的一种在 D2D通信中建立用户组的组头的装置的结构图。该装置包括：第一接收单元 801、第一分配单元 802和第一发送单元 803。其中，第一接收单元 801，用于接收用于将 D2D设备建立成为目标用户组的组头的第一请求消息，所述第一请求消息中至少携带有目标用户组的组标识和 D2D设备的设备标识； Corresponding to a method for establishing a group header of a user group in D2D communication, the embodiment of the present application further provides an apparatus for establishing a group header of a user group in D2D communication. Referring to FIG. 8, FIG. 8 is a structural diagram of an apparatus for establishing a group header of a user group in D2D communication according to Embodiment 6 of the application. The apparatus includes: a first receiving unit 801, a first allocating unit 802, and a first transmitting unit 803. The first receiving unit 801 is configured to receive a first request message for establishing a D2D device as a group header of a target user group, where the first request message carries at least a group identifier of a target user group and a D2D device. Equipment Identity;

第一分配单元 802，用于根据所述第一请求消息中的组标识和设备标识分别确定目标用户组以及目标用户组的组头，并为所述目标用户组分配用于组头向组员发送组宣称信息的组宣称信道资源； The first allocating unit 802 is configured to determine a target group of the target user group and the target user group according to the group identifier and the device identifier in the first request message, and allocate the group head group member to the target user group. The group that sends the group claiming information declares the channel resource;

第一发送单元 803，用于发送将 D2D设备建立成为所述目标用户组的组头的第一响应消息，所述第一响应消息中至少携带有所述目标用户组的组标识和所述组宣称信道资源的位置标识。 a first sending unit 803, configured to send a first response message that establishes a D2D device as a group header of the target user group, where the first response message carries at least a group identifier of the target user group and the group A location identifier that declares a channel resource.

所述 D2D设备为接入到所述基站覆盖的蜂窝小区的任意一个 D2D设备。优选的，在如图 8所示装置的基础上，如图 9所示，该装置还包括：验证单元 804，用于在第一分配单元 802为所述目标用户组分配组宣称信道资源之前，利用核心网网元验证所述目标用户组是否合法以及所述 D2D设备是否有资格成为所述目标用户组的组头； The D2D device is any D2D device that accesses a cell covered by the base station. Preferably, on the basis of the apparatus shown in FIG. 8, as shown in FIG. 9, the apparatus further includes: a verification unit 804, configured to: before the first allocation unit 802 allocates a group claim channel resource to the target user group, Determining, by the core network element, whether the target user group is legal and whether the D2D device is eligible to be the group header of the target user group;

则所述第一分配单元 802具体用于，在验证通过时，为所述目标用户组分配所述组宣称信道资源。 The first allocating unit 802 is specifically configured to allocate the group-declared channel resource to the target user component when the verification succeeds.

优选的，在如图 9所示装置的基础上，如图 10所示，所述装置还包括：第二分配单元 805，用于在验证通过时，为所述目标用户组分配用于组头和组员传输数据的数据传输资源； Preferably, on the basis of the apparatus shown in FIG. 9, as shown in FIG. 10, the apparatus further includes: a second allocating unit 805, configured to allocate, for the target user group, a group header when the verification is passed Data transmission resources for transmitting data with the group member;

则所述第一响应消息中还携带有所述数据传输资源的位置标识，所述组宣称信息用于携带所述数据传输资源。当然，如果该装该还包括第二分配单元 And the first response message further carries a location identifier of the data transmission resource, where the group declaration information is used to carry the data transmission resource. Of course, if the device also includes the second dispensing unit

805，验证单元 804在第一分配单元 802为所述目标用户组分配组宣称信道资源以及第二分配单元 804为所述目标用户组分配数据传输资源之前，利用核心网网元验证所述目标用户组是否合法以及所述 D2D设备是否有资格成为所述目标用户组的组头； 805. The verification unit 804 uses the core network element to verify the target user before the first allocation unit 802 allocates a group-declared channel resource for the target user group and the second allocation unit 804 allocates a data transmission resource to the target user group. Whether the group is legal and whether the D2D device is eligible to be the group header of the target user group;

优选的，基站分配的物理资源处于非激活状态；该装置还包括：第二接收单元，用于接收需要传输数据的 D2D设备发送的用于将非激活状态的物理资源激活的激活请求消息或 D2D专用的 SR信号； Preferably, the physical resource allocated by the base station is in an inactive state; the device further includes: a second receiving unit, configured to receive, by the D2D device that needs to transmit data, an activation request message or D2D for activating the physical resource in the inactive state. Dedicated SR signal;

进一步优选的，该装置还包括： Further preferably, the device further comprises:

优选的，所述第二分配单元 804具体用于，从核心网网元获取所述目标用户组的服务质量 Qos参数或参数组，并根据所述目标用户组的 Qos参数或参数组为所述目标用户组分配所述数据传输资源。 Preferably, the second allocating unit 804 is configured to: obtain, from the core network element, a quality of service Qos parameter or a parameter group of the target user group, and according to the Qos parameter or a parameter group of the target user group, The target user group allocates the data transmission resource.

优选的，该装置还包括：广播单元，用于在覆盖的蜂窝小区范围内广播携带所述目标用户组的组标识、所述组宣称信道资源的位置标识和物理资源的位置标识的 SIB消息； Preferably, the device further includes: a broadcasting unit, configured to broadcast, within the coverage cell, an SIB message carrying the group identifier of the target user group, the location identifier of the group-declared channel resource, and the location identifier of the physical resource;

或者， Or,

专用信令发送单元，用于基站向接入到自身覆盖的蜂窝小区的所有 D2D 设备发送携带所述目标用户组的组标识、所述组宣称信道资源的位置标识和物理资源的位置标识的专用信令。 a dedicated signaling sending unit, configured to send, by the base station, a group identifier that carries the target user group, a location identifier of the group-declared channel resource, and a location identifier of a physical resource to all D2D devices that access the cell covered by the base station Signaling.

优选的，在如图 10所示装置的基础上，如图 11所示（其中，图 11未显示图 10所示装置的组成部分），该装置还包括： Preferably, on the basis of the apparatus shown in Fig. 10, as shown in Fig. 11 (wherein Fig. 11 does not show the components of the apparatus shown in Fig. 10), the apparatus further includes:

第四接收单元 806-a，用于接收用于更换物理资源的第二请求消息，所述第二请求消息中至少携带有所述目标用户组的组标识和所述组头的设备标识；第一更换单元 807-a，用于根据所述第二请求消息中的组标识和设备标识分别确定目标用户组以及目标用户组的组头，并为所述目标用户组更换物理资源； The fourth receiving unit 806-a is configured to receive a second request message for replacing the physical resource, where the second request message carries at least the group identifier of the target user group and the device identifier of the group header. a replacement unit 807-a, configured to determine a target group of the target user group and the target user group according to the group identifier and the device identifier in the second request message, and replace the physical resource for the target user group;

第四发送单元 808-a，用于发送更换物理资源的第二响应消息，所述第二响应消息中至少携带有更换后的物理资源的位置标识。 The fourth sending unit 808-a is configured to send a second response message that replaces the physical resource, where the second response message carries at least the location identifier of the replaced physical resource.

或者，优选的，在如图 10所示的装置的基础上，该装置还包括：第二更换单元 806-b，用于为所述目标用户组更换物理资源；第五发送单元 807-b，用于向所述目标用户组的组头发送更换物理资源的控制消息，所述控制消息中至少携带有更换后的物理资源的位置标识； Or, preferably, based on the device shown in FIG. 10, the device further includes: a second replacing unit 806-b, configured to replace physical resources for the target user group; a fifth sending unit 807-b, configured to send, to the group header of the target user group, a control message for replacing a physical resource, where the control message carries at least a location identifier of the replaced physical resource;

第五接收单元 808-b，用于接收所述目标用户组的组头返回的更换物理资源的确认消息。 The fifth receiving unit 808-b is configured to receive an acknowledgement message for replacing the physical resource returned by the group header of the target user group.

优选的，所述第二请求消息为所述目标用户组的组头在监测到所述目标用户组的组通信质量小于预设的门限值时发送的；或者，所述第二请求消息为所述目标用户组的组头在发起小区切换时发送的。 Preferably, the second request message is sent when the group header of the target user group detects that the group communication quality of the target user group is less than a preset threshold; or the second request message is The group header of the target user group is sent when a cell handover is initiated.

进一步优选的，如果所述第二请求消息为所述目标用户组的组头在发起小区切换时发送的，所述第二请求消息具体为切换过程中的 RRC radio reconfiguration complete消息。 Further preferably, if the second request message is sent by the group header of the target user group when the cell handover is initiated, the second request message is specifically an RRC radio reconfiguration complete message in the handover process.

进一步优选的，装置还包括：通知单元，用于通过 X2接口消息将所述目标用户组当前占用的物理资源通知给临近的基站。 Further preferably, the device further includes: a notification unit, configured to notify the neighboring base station of the physical resource currently occupied by the target user group by using the X2 interface message.

进一步的，还解决了在建立用户组的组头时，由于未对组头进行验证而存在的安全性问题。上述装置实施例是与方法实施例对应的虚拟装置，相关单元的具体执行过程可以参见相应的方法实施例。实施例八 Further, the security problem that exists when the group header of the user group is established is verified because the group header is not verified. The device embodiment is a virtual device corresponding to the method embodiment, and the relevant unit is specifically executed. The process can be seen in the corresponding method embodiment. Example eight

本申请实施例还提供了一种通讯装置，通讯装置可能是包含计算能力的主机服务器，或者是个人计算机 PC, 或者是可携带的便携式计算机或终端等等，本申请具体实施例并不对通讯装置的具体实现做限定。 The embodiment of the present application further provides a communication device, which may be a host server including computing power, or a personal computer PC, or a portable computer or terminal, etc., and the specific embodiment of the present application does not correspond to the communication device. The specific implementation is limited.

图 12为本申请的通讯装置的结构图。如图 11所示，通讯装置 1200包括：处理器 (processor ) 1210,通信接口 (Communications Interface ) 1220, 存储器 (memory) 1230，总线 1240。 Figure 12 is a structural diagram of a communication device of the present application. As shown in FIG. 11, the communication device 1200 includes: a processor 1210, a communication interface 1220, a memory 1230, and a bus 1240.

处理器 1210，通信接口 1220，存储器 1230通过总线 1240完成相互间的通信。 The processor 1210, the communication interface 1220, and the memory 1230 complete communication with each other via the bus 1240.

处理器 1210，用于执行程序 1232。 The processor 1210 is configured to execute the program 1232.

具体地，程序 1232可以包括程序代码，所述程序代码包括计算机操作指处理器 1210 可能是一个中央处理器 CPU, 或者是特定集成电路 ASIC In particular, program 1232 can include program code, including computer operating instructions, processor 1210, which can be a central processing unit CPU, or a specific integrated circuit ASIC.

(Appl ication Specific Integrated Circuit ) , 或者是被配置成实施本申请实施例的一个或多个集成电路。 (Appl ication Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of the present application.

存储器 1130，用于存放程序 1232。存储器 1230可能包含高速 RAM存储器，也可能还包括非易失性存储器（non-volati le memory) , 例如至少一个磁盘存储器。程序 1232用于执行以下步骤： The memory 1130 is configured to store the program 1232. Memory 1230 may include high speed RAM memory and may also include non-volatile memory, such as at least one disk memory. Program 1232 is used to perform the following steps:

接收用于将 D2D设备建立成为目标用户组的组头的第一请求消息，所述第一请求消息中至少携带有目标用户组的组标识和 D2D设备的设备标识；根据所述第一请求消息中的组标识和设备标识分别确定目标用户组以及目标用户组的组头，并为所述目标用户组分配用于组头向组员发送组宣称信息的组宣称信道资源； Receiving a first request message for establishing a D2D device as a group header of a target user group, where the first request message carries at least a group identifier of a target user group and a device identifier of the D2D device; according to the first request message The group identifier and the device identifier respectively determine a target user group and a group header of the target user group, and allocate, for the target user group, a group claim channel resource for the group header to send the group claim information to the group member;

发送用于将 D2D设备建立成为目标用户组的组头的第一响应消息，所述第一响应消息中至少携带有所述目标用户组的组标识和所述组宣称信道资源的位置标识； Sending a first response message for establishing a D2D device as a group header of the target user group, where the first response message carries at least the group identifier of the target user group and the location identifier of the group-declared channel resource;

其中，所述设备标识指示的 D2D设备为接入到所述基站覆盖的蜂窝小区的任意一个 D2D设备。 The D2D device indicated by the device identifier is a cell that accesses the coverage of the base station. Any of the D2D devices.

程序 1232中各步骤的具体实现参见图 8-图 11所示实施例中的相应单元的实现方式，在此不赘述。 For the specific implementation of the steps in the program 1232, refer to the implementation of the corresponding unit in the embodiment shown in FIG. 8 to FIG. 11 , and details are not described herein.

以上对本申请所提供的一种在 D2D通信中建立用户组的组头的方法和装置进行了详细介绍，本文中应用了具体实施例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的一般技术人员，在不脱离本申请描述的原理前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本申请的保护范围。 The method and apparatus for establishing a group header of a user group in D2D communication are described in detail in the above application. The principles and implementation manners of the application are described in the specific embodiments, and the description of the foregoing embodiment is described. It is only used to help understand the method of the present application and its core idea; at the same time, those skilled in the art can make some improvements and retouching without departing from the principles described in the application, and these improvements and retouching should also be It is considered as the scope of protection of this application.

Claims

权利要求 Rights request

1、一种在 D2D通信中建立用户组的组头的方法，其特征在于，包括：基站接收用于将 D2D设备建立成为目标用户组的组头的第一请求消息，所述第一请求消息中至少携带有目标用户组的组标识和 D2D设备的设备标识； 1. A method for establishing a group leader of a user group in D2D communication, characterized by: the base station receiving a first request message for establishing a D2D device as the group leader of a target user group, the first request message It carries at least the group ID of the target user group and the device ID of the D2D device;

基站根据所述第一请求消息中的组标识和设备标识分别确定目标用户组以及目标用户组的组头，并为所述目标用户组分配用于组头向组员发送组宣称信息的组宣称信道资源； The base station determines the target user group and the group header of the target user group respectively according to the group identifier and the device identifier in the first request message, and allocates a group claim to the target user group for the group leader to send group claim information to the group members. channel resources;

基站发送用于将 D2D设备建立成为目标用户组的组头的第一响应消息，所述第一响应消息中至少携带有所述目标用户组的组标识和所述组宣称信道资源的位置标识； The base station sends a first response message for establishing the D2D device as the group head of the target user group, where the first response message carries at least the group identifier of the target user group and the location identifier of the channel resource claimed by the group;

其中，所述设备标识指示的 D2D设备为接入到所述基站覆盖的蜂窝小区的任意一个 D2D设备。 Wherein, the D2D device indicated by the device identification is any D2D device that accesses a cell covered by the base station.

2、根据权利要求 1所述的方法，其特征在于，所述方法还包括：基站为所述目标用户组分配用于组头和组员传输数据的数据传输资源；则所述第一响应消息中还携带有所述数据传输资源的位置标识，所述组宣称信息用于携带所述数据传输资源。 2. The method according to claim 1, characterized in that, the method further includes: the base station allocates data transmission resources for the group leader and group members to transmit data to the target user group; then the first response message also carries the location identifier of the data transmission resource, and the group claim information is used to carry the data transmission resource.

3、根据权利要求 1或 2所述的方法，其特征在于，所述方法还包括：在基站为所述目标用户组分配物理资源之前，基站利用核心网网元验证所述目标用户组是否合法以及所述 D2D设备是否有资格成为所述目标用户组的组头； 3. The method according to claim 1 or 2, characterized in that, the method further includes: before the base station allocates physical resources to the target user group, the base station uses core network elements to verify whether the target user group is legal. And whether the D2D device is qualified to become the group leader of the target user group;

基站为所述目标用户组分配物理资源具体为： The base station allocates physical resources to the target user group as follows:

其中，所述物理资源为组宣称信道资源，或者，组宣称信道资源和数据传输资源。 Wherein, the physical resources are group claimed channel resources, or group claimed channel resources and data transmission resources.

4、根据权利要求 1或 2所述的方法，其特征在于，基站分配的物理资源处于非激活状态；所述方法还包括：基站接收需要传输数据的 D2D设备发送的用于将非激活状态的物理资源激活的激活请求消息或 D2D专用的 SR信号； 4. The method according to claim 1 or 2, characterized in that the physical resources allocated by the base station are in an inactive state; the method further includes: The base station receives an activation request message or a D2D-specific SR signal sent by the D2D device that needs to transmit data to activate the inactive physical resource;

基站激活物理资源； The base station activates physical resources;

基站向需要传输数据的 D2D设备发送用于将非激活状态的物理资源激活的激活响应消息或 D2D专用的 SR信号； The base station sends an activation response message or D2D-specific SR signal to activate the inactive physical resource to the D2D device that needs to transmit data;

5、根据权利要求 4所述的方法，其特征在于，所述方法还包括：基站接收已传输完毕的 D2D设备发送的用于将激活状态的物理资源去激活的去激活请求消息或 D2D专用的 SR信号； 5. The method according to claim 4, characterized in that, the method further includes: the base station receiving a deactivation request message or D2D-specific message sent by the D2D device that has completed the transmission for deactivating the physical resource in the activated state. SR signal;

基站去激活物理资源； The base station deactivates physical resources;

基站向已传输完毕的 D2D设备发送用于将激活状态的物理资源去激活的激活响应消息或 D2D专用的 SR信号； The base station sends an activation response message or a D2D-specific SR signal to deactivate the physical resources in the activated state to the D2D device that has completed the transmission;

6、根据权利要求 2所述的方法，其特征在于，所述基站为所述目标用户组分配用于组头和组员传输数据的数据传输资源具体为： 6. The method according to claim 2, characterized in that the base station allocates data transmission resources for the target user group for the group leader and group members to transmit data, specifically:

基站从核心网网元获取所述目标用户组的服务质量 Qos参数或参数组，并根据所述目标用户组的 Qos 参数或参数组为所述目标用户组分配所述数据传输资源。 The base station obtains the quality of service Qos parameter or parameter group of the target user group from the core network element, and allocates the data transmission resources to the target user group according to the Qos parameter or parameter group of the target user group.

7、根据权利要求 1或 2所述的方法，其特征在于，所述方法还包括：基站在覆盖的蜂窝小区范围内广播携带所述目标用户组的组标识和物理资源的位置标识的 SIB消息； 7. The method according to claim 1 or 2, characterized in that, the method further includes: the base station broadcasts a SIB message carrying the group identifier of the target user group and the location identifier of the physical resource within the covered cell range. ;

或者， or,

基站向接入到自身覆盖的蜂窝小区的所有 D2D设备发送携带所述目标用户组的组标识和物理资源的位置标识的专用信令； The base station sends dedicated signaling carrying the group identifier of the target user group and the location identifier of the physical resource to all D2D devices that access the cells covered by it;

其中，所述物理资源为组宣称信道资源，或者，组宣称信道资源和 /或数据传输资源。 Wherein, the physical resources are group claimed channel resources, or group claimed channel resources and/or data transmission resources.

8、根据权利要求 1或 2所述的方法，其特征在于，所述方法还包括：基站接收用于更换物理资源的第二请求消息，所述第二请求消息中至少携带有所述目标用户组的组标识和所述组头的设备标识； 8. The method according to claim 1 or 2, characterized in that, the method further includes: the base station receiving a second request message for changing physical resources, the second request message carrying at least the target user The group ID of the group and the device ID of the group head;

基站根据所述第二请求消息中的组标识和设备标识分别确定目标用户组以及目标用户组的组头，并为所述目标用户组更换物理资源； The base station determines the target user group and the group header of the target user group respectively according to the group identifier and device identifier in the second request message, and replaces physical resources for the target user group;

基站发送更换物理资源的第二响应消息，所述第二响应消息中至少携带有更换后的物理资源的位置标识； The base station sends a second response message for replacing the physical resource, where the second response message at least carries the location identifier of the replaced physical resource;

其中，所述物理资源为组宣称信道资源，或者，组宣称信道资源和 /或数据传输资源。 The physical resources are group claimed channel resources, or group claimed channel resources and/or data transmission resources.

9、根据权利要求 1或 2所述的方法，其特征在于，所述方法还包括：基站通过 X2接口消息将所述目标用户组当前占用的物理资源通知给临近的基站； 9. The method according to claim 1 or 2, characterized in that the method further includes: the base station notifies the adjacent base station of the physical resources currently occupied by the target user group through an X2 interface message;

10、根据权利要求 8所述的方法，其特征在于， 10. The method according to claim 8, characterized in that,

所述第二请求消息为所述目标用户组的组头在监测到所述目标用户组的组通信质量小于预设的门限值时发送的； The second request message is sent by the group head of the target user group when it detects that the group communication quality of the target user group is less than a preset threshold value;

或者， or,

所述第二请求消息为所述目标用户组的组头在发起小区切换时发送的。 The second request message is sent by the group leader of the target user group when initiating cell handover.

11、根据权利要求 10所述的方法，其特征在于，如果所述第二请求消息为所述目标用户组的组头在发起小区切换时发送的，所述第二请求消息具体为切换过程中的 RRC radio reconfiguration complete消息。 11. The method according to claim 10, characterized in that, if the second request message is sent by the group head of the target user group when initiating cell handover, the second request message is specifically sent during the handover process. RRC radio reconfiguration complete message.

12、根据权利要求 1或 2所述的方法，其特征在于，所述方法还包括：基站为所述目标用户组更换物理资源； 12. The method according to claim 1 or 2, characterized in that, the method further includes: the base station replaces physical resources for the target user group;

基站向所述目标用户组的组头发送更换物理资源的控制消息，所述控制消息中至少携带有更换后的物理资源的位置标识； The base station sends a control message for replacing the physical resource to the group head of the target user group, where the control message at least carries the location identifier of the replaced physical resource;

基站接收所述目标用户组的组头返回的更换所述物理资源的确认消息；其中，所述物理资源为组宣称信道资源，或者，组宣称信道资源和 /或数据传输资源。 The base station receives a confirmation message for replacing the physical resource returned by the group leader of the target user group; Wherein, the physical resources are group claimed channel resources, or group claimed channel resources and/or data transmission resources.

13、一种在 D2D通信中建立用户组的组头的装置，其特征在于，包括：第一接收单元，用于接收用于将 D2D设备建立成为目标用户组的组头的第一请求消息，所述第一请求消息中至少携带有目标用户组的组标识和 D2D 设备的设备标识； 13. A device for establishing a group leader of a user group in D2D communication, characterized by comprising: a first receiving unit, configured to receive a first request message for establishing a D2D device as the group leader of a target user group, The first request message carries at least the group identifier of the target user group and the device identifier of the D2D device;

第一分配单元，用于根据所述第一请求消息中的组标识和设备标识分别确定目标用户组以及目标用户组的组头，并为所述目标用户组分配用于组头向组员发送组宣称信息的组宣称信道资源； The first allocation unit is configured to determine the target user group and the group header of the target user group respectively according to the group identifier and the device identifier in the first request message, and allocate the group header to the target user group for sending to the group members. Group claim channel resources for group claim information;

第一发送单元，用于发送将 D2D设备建立成为所述目标用户组的组头的第一响应消息，所述第一响应消息中至少携带有所述目标用户组的组标识和所述组宣称信道资源的位置标识； The first sending unit is configured to send a first response message that establishes the D2D device as the group head of the target user group, where the first response message carries at least the group identifier of the target user group and the group claim. The location identifier of the channel resource;

14、根据权利要求 13所述的装置，其特征在于，所述装置还包括：第二分配单元，用于为所述目标用户组分配用于组头和组员传输数据的数据传输资源； 14. The device according to claim 13, characterized in that the device further includes: a second allocation unit, configured to allocate data transmission resources for the group leader and group members to transmit data to the target user group;

则所述第一响应消息中还携带有所述数据传输资源的位置标识，所述组宣称信息用于携带所述数据传输资源。 The first response message also carries the location identifier of the data transmission resource, and the group claim information is used to carry the data transmission resource.

15、根据权利要求 12或 13所述的装置，其特征在于，所述装置还包括：验证单元，用于在第一分配单元为所述目标用户组分配组宣称信道资源，或者，在第一分配单元为所述目标用户组分配组宣称信道资源以及第二分配单元为所述目标用户组分配数据传输资源之前，利用核心网网元验证所述目标用户组是否合法以及所述 D2D设备是否有资格成为所述目标用户组的组头；则所述第一分配单元具体用于，在验证通过时，为所述目标用户组分配所述组宣称信道资源； 15. The device according to claim 12 or 13, characterized in that the device further includes: a verification unit, configured to allocate group claimed channel resources to the target user group in the first allocation unit, or in the first allocation unit Before the allocation unit allocates group claimed channel resources to the target user group and the second allocation unit allocates data transmission resources to the target user group, the core network element is used to verify whether the target user group is legal and whether the D2D device has qualified to become the group leader of the target user group; then the first allocation unit is specifically configured to, when the verification is passed, allocate the group claimed channel resources to the target user group;

则所述第二分配单元具体用于，在验证通过时，为所述目标用户组分配所述数据传输资源。 The second allocating unit is specifically configured to allocate the data transmission resources to the target user group when the verification is passed.

16、根据权利要求 13或 14所述的装置，其特征在于，基站分配的物理资源处于非激活状态；所述装置还包括： 16. The device according to claim 13 or 14, characterized in that the physical resources allocated by the base station are in an inactive state; the device further includes:

第二接收单元，用于接收需要传输数据的 D2D设备发送的用于将非激活状态的物理资源激活的激活请求消息或 D2D专用的 SR信号； The second receiving unit is configured to receive an activation request message or a D2D-specific SR signal sent by the D2D device that needs to transmit data for activating the physical resource in an inactive state;

激活单元，用于激活物理资源； Activation unit, used to activate physical resources;

第二发送单元，用于向需要传输数据的所述 D2D设备发送用于将非激活状态的物理资源激活的激活响应消息或 D2D专用 SR信号； A second sending unit, configured to send an activation response message or a D2D dedicated SR signal for activating physical resources in an inactive state to the D2D device that needs to transmit data;

17、根据权利要求 16所述的装置，其特征在于，所述装置还包括：第三接收单元，用于接收已传输完毕的 D2D设备发送的用于将激活状态的物理资源去激活的去激活请求消息或 D2D专用的 SR信号； 17. The device according to claim 16, characterized in that the device further includes: a third receiving unit, configured to receive a deactivation message sent by the D2D device that has completed transmission for deactivating the physical resource in the activated state. Request message or D2D-specific SR signal;

第三发送单元，用于向需要传输数据的所述 D2D设备发送用于将激活状态的物理资源去激活的激活响应消息或 D2D专用的 SR信号； The third sending unit is configured to send an activation response message or a D2D-specific SR signal for deactivating physical resources in an activated state to the D2D device that needs to transmit data;

18、根据权利要求 14所述的装置，其特征在于，所述第二分配单元具体用于，从核心网网元获取所述目标用户组的服务质量 Qos参数或参数组，并根据所述目标用户组的 Qos 参数或参数组为所述目标用户组分配所述数据传输资源。 18. The device according to claim 14, characterized in that, the second allocation unit is specifically configured to obtain the quality of service Qos parameters or parameter groups of the target user group from the core network element, and configure the QoS parameters according to the target user group. The Qos parameter or parameter group of the user group allocates the data transmission resource to the target user group.

19、根据权利要求 13或 14所述的装置，其特征在于，所述装置还包括：广播单元，用于在覆盖的蜂窝小区范围内广播携带所述目标用户组的组标识物理资源的位置标识的 SIB消息； 19. The device according to claim 13 or 14, characterized in that, the device further includes: a broadcast unit, configured to broadcast the location identifier of the physical resource carrying the group identifier of the target user group within the coverage of the cell. SIB message;

或者， or,

专用信令发送单元，用于基站向接入到自身覆盖的蜂窝小区的所有 D2D 设备发送携带所述目标用户组的组标识和物理资源的位置标识的专用信令；其中，所述物理资源为组宣称信道资源，或者，组宣称信道资源和 /或数据传输资源。 A dedicated signaling sending unit, configured for the base station to send dedicated signaling carrying the group identifier of the target user group and the location identifier of the physical resource to all D2D devices accessing the cell covered by itself; wherein, the physical resource is The group claims channel resources, or, the group claims channel resources and/or data data transmission resources.

20、根据权利要求 13或 14所述的装置，其特征在于，所述装置还包括：第四接收单元，用于接收用于更换物理资源的第二请求消息，所述第二请求消息中至少携带有所述目标用户组的组标识和所述组头的设备标识； 20. The device according to claim 13 or 14, characterized in that, the device further includes: a fourth receiving unit, configured to receive a second request message for replacing physical resources, wherein at least Carrying the group identifier of the target user group and the device identifier of the group header;

第一更换单元，用于根据所述第二请求消息中的组标识和设备标识分别确定目标用户组以及目标用户组的组头，并为所述目标用户组更换物理资源；第四发送单元，用于发送更换物理资源的第二响应消息，所述第二响应消息中至少携带有更换后的物理资源的位置标识； The first replacement unit is used to determine the target user group and the group header of the target user group respectively according to the group identifier and the device identifier in the second request message, and replace the physical resources for the target user group; the fourth sending unit, Used to send a second response message for replacing the physical resource, where the second response message at least carries the location identifier of the replaced physical resource;

21、根据权利要求 13或 14所述的装置，其特征在于，所述装置还包括：通知单元，用于通过 X2接口消息将所述目标用户组当前占用的物理资源通知给临近的基站； 21. The device according to claim 13 or 14, characterized in that the device further includes: a notification unit, configured to notify the adjacent base station of the physical resources currently occupied by the target user group through an X2 interface message;

22、根据权利要求 13或 14所述的装置，其特征在于，所述装置还包括：第二更换单元，用于为所述目标用户组更换物理资源； 22. The device according to claim 13 or 14, characterized in that the device further includes: a second replacement unit, used to replace physical resources for the target user group;

第五发送单元，用于向所述目标用户组的组头发送更换物理资源的控制消息，所述控制消息中至少携带有更换后的物理资源的位置标识； The fifth sending unit is configured to send a control message for replacing the physical resource to the group head of the target user group, where the control message at least carries the location identifier of the replaced physical resource;

第五接收单元，用于接收所述目标用户组的组头返回的更换物理资源的确认消息； The fifth receiving unit is used to receive a confirmation message for replacing physical resources returned by the group head of the target user group;