WO2014194851A1

WO2014194851A1 - Method, terminal and system for detecting discovery message

Info

Publication number: WO2014194851A1
Application number: PCT/CN2014/079315
Authority: WO
Inventors: 陈文洪; 高秋彬; 赵锐; 彭莹
Original assignee: 电信科学技术研究院
Priority date: 2013-06-07
Filing date: 2014-06-06
Publication date: 2014-12-11
Also published as: CN104244363B; CN104244363A

Abstract

Disclosed are a method, UE and system for detecting a discovery message. The method comprises: according to a predetermined correlation between information about a discovery sequence and a discovery message format, the discovery message format being indicated by a base station, or a predetermined correlation between a physical resource and the discovery message format, a discovering UE determining a discovery message format of a discovered UE, and then, detecting a discovery message sent by the discovered UE according to the determined discovery message format. In the technical solution provided in the embodiments of the present invention, a discovery message format is firstly determined, and then a discovery message is detected according to the discovery message format, so that there is no need to conduct a blind test on all possible discovery message formats, thereby reducing the detection complexity of the discovery message.

Description

一种检测发现消息的方法、终端及*** Method, terminal and system for detecting discovery message

本申请要求在 2013年 6月 7日提交中国专利局、申请号为 201310226570.8、发明名称为"一种检测发现消息的方法、终端及***"的中国专利申请的优先权，其全部内容通过引用结合在本申请中。技术领域 This application claims priority to Chinese Patent Application No. 20130226570.8, entitled "A Method, Terminal, and System for Detecting Discovery Messages", filed on June 7, 2013, the entire contents of which are incorporated by reference. In this application. Technical field

本发明涉及设备到设备 ( Device-to-Device, D2D )通信技术领域，尤其涉及一种检测发现消息的方法、终端及***。背景技术 The present invention relates to the field of device-to-device (D2D) communication technologies, and in particular, to a method, a terminal, and a system for detecting a discovery message. Background technique

D2D通信技术，即用户设备（User Equipment, UE )直通技术，是指邻近的 UE可以在近距离范围内通过直连链路进行数据传输，不需要通过基站进行数据转发。 The D2D communication technology, that is, the user equipment (UE) direct communication technology, means that neighboring UEs can transmit data through a direct link in a short range without performing data forwarding through the base station.

长期演进（Long Term Evolution, LTE ) D2D技术是指工作在 LTE授权频段上、受 LTE网络控制的 D2D通信技术。 LTE D2D特性的引入将使 LTE技术从单纯的无线移动蜂窝通信技术向着 "通用连接技术（ Universal Connectivity Technology )，，的方向演进。 Long Term Evolution (LTE) D2D technology refers to D2D communication technology that operates on the LTE licensed frequency band and is controlled by the LTE network. The introduction of LTE D2D features will enable LTE technology to evolve from pure wireless mobile cellular communication technology to Universal Connectivity Technology.

D2D技术可以分为 D2D发现和 D2D通信两个过程。 D2D technology can be divided into two processes: D2D discovery and D2D communication.

D2D UE间的发现靠发现信号来实现，发现信号一般在专用的发现子帧中传输，不同 UE发送的发现信号占用不同的频域资源。发现信号需要保证在有 LTE网络覆盖和没有网络覆盖情况下均能被检测到。 The discovery between the D2D UEs is implemented by the discovery signal, and the discovery signals are generally transmitted in the dedicated discovery subframes, and the discovery signals sent by different UEs occupy different frequency domain resources. The discovery signal needs to be guaranteed to be detected if there is LTE network coverage and no network coverage.

发现信号可以包括发现序列和 /或发现消息。即使发现信号包括发现序列和发现消息，同一个发现信号的发现序列和发现消息既可以是相互独立的信号，也可以在同一个信号中实现（例如，发现序列作为发现信号的导频信号，发现消息作为发现信号的内容）。发现序列一般是一个 ZC序列或者 m序列。发现消息一般通过物理信道传输，典型的比如物理上行共享信道 /物理上行控制信道（ PUSCH/PUCCH )。 The discovery signal can include a discovery sequence and/or a discovery message. Even if the discovery signal includes the discovery sequence and the discovery message, the discovery sequence and the discovery message of the same discovery signal can be either independent signals or can be implemented in the same signal (for example, the discovery sequence is used as the pilot signal of the discovery signal, and found The message is the content of the discovery signal). The sequence is found to be generally a ZC sequence or an m sequence. The discovery message is typically transmitted over a physical channel, typically such as a physical uplink shared channel/physical uplink control channel (PUSCH/PUCCH).

D2D发现的作用可以归结为：同步和识别。同步，是指通过发现信号达到 UE间的时域和频域同步，一般通过发现序列来实现。识别，是指通过发现信号，发现 UE ( discovered UE, 即识别动作的执行主体）可以获知被发现 UE ( discovering UE )的一些信息，从而识别出被发现 UE; 发现 UE通过发现信号获知的信息可以是设备信息、应用信息、服务类型等，这些信息一般通过发现消息来传输。 The role of D2D discovery can be summarized as: synchronization and identification. Synchronization refers to the time domain and frequency domain synchronization between UEs through the discovery signal, which is generally realized by finding a sequence. The identification means that the UE (discovered UE, ie, the executor of the identification action) can learn some information of the discovered UE (discovering UE) by the discovery signal, thereby identifying the discovered UE; and discovering the information that the UE learns through the discovery signal. It is device information, application information, service type, etc., and this information is generally transmitted by discovering messages.

针对不同的网络覆盖情况（比如有网络覆盖、没有网络覆盖），不同的应用场景（比如广播或者社交应用），不同的设备类型或者不同的服务类型，发现消息需要携带不同的信息，从而导致发现消息可以有多种不同的格式。发现 UE在检测发现消息时，如果不知道目标消息的格式，则需要盲检所有可能的消息格式，从而引入很高的检测复杂度。发明内容 For different network coverage situations (such as network coverage, no network coverage), different application scenarios (such as broadcast or social applications), different device types, or different service types, the discovery message needs to carry different information, resulting in discovery. Messages can be in many different formats. It is found that when the UE detects the discovery message, if the format of the target message is not known, all possible message formats need to be blindly checked, thereby introducing high detection complexity. Summary of the invention

本发明实施例提供一种检测发现消息的方法、 UE及***，以解决盲检所有可能的消息格式导致发现消息的检测复杂度高的问题。 The embodiments of the present invention provide a method, a UE, and a system for detecting a discovery message, so as to solve the problem that the detection complexity of the discovery message is high due to all possible message formats of the blind detection.

本发明实施例提供的一种检测发现消息的方法，包括： A method for detecting a discovery message according to an embodiment of the present invention includes:

检测到被发现 UE发送的发现序列后，根据预先确定的发现序列的信息与发现消息格式的对应关系，确定所述发现序列对应的发现消息格式； After detecting the discovery sequence sent by the UE, determining the format of the discovery message corresponding to the discovery sequence according to the correspondence between the information of the predetermined discovery sequence and the discovery message format;

按照确定的发现消息格式，检测所述被发现 UE发送的发现消息。 And detecting, according to the determined discovery message format, the discovery message sent by the discovered UE.

根据控制节点发送的被发现 UE的发现消息格式指示信息，确定被发现 UE的发现消息格式； Determining a discovery message format of the discovered UE according to the discovery message format indication information of the discovered UE sent by the control node;

按照确定的被发现 UE的发现消息格式，检测所述被发现 UE发送的发现消息。本发明实施例提供的一种检测发现消息的方法，包括： And detecting, according to the determined discovery message format of the discovered UE, the discovery message sent by the discovered UE. A method for detecting a discovery message according to an embodiment of the present invention includes:

根据预先确定的物理资源的信息与发现消息格式的对应关系，确定需要检测发现消息的各个物理资源对应的发现消息格式； Determining, according to the correspondence between the information of the predetermined physical resource and the format of the discovery message, the format of the discovery message corresponding to each physical resource that needs to detect the discovery message;

在需要检测发现消息的各个物理资源上，按照确定的物理资源对应的发现消息格式检测被发现 UE发送的发现消息。 The discovery message sent by the discovered UE is detected according to the discovery message format corresponding to the determined physical resource on each physical resource that needs to detect the discovery message.

本发明实施例提供的一种 UE, 包括： A UE provided by an embodiment of the present invention includes:

发现消息格式确定模块，用于检测到被发现 UE发送的发现序列后，根据预先确定的发现序列的信息与发现消息格式的对应关系，确定所述发现序列对应的发现消息格式；发现消息检测模块，用于按照所述发现消息格式确定模块确定的发现消息格式，检测所述被发现 UE发送的发现消息。 The discovery message format determining module is configured to: after detecting the discovery sequence sent by the discovered UE, determine a format of the discovery message corresponding to the discovery sequence according to a correspondence between the information of the predetermined discovery sequence and the format of the discovery message; And detecting, according to the discovery message format determined by the discovery message format determining module, a discovery message sent by the discovered UE.

发现消息格式确定模块，用于根据控制节点发送的被发现 UE的发现消息格式指示信息，确定被发现 UE的发现消息格式； a discovery message format determining module, configured to determine a discovery message format of the discovered UE according to the discovery message format indication information of the discovered UE sent by the control node;

发现消息检测模块，用于按照所述发现消息格式确定模块确定的被发现 UE的发现消息格式，检测所述被发现 UE发送的发现消息。 The discovery message detecting module is configured to detect, according to the discovery message format, the discovery message format of the discovered UE determined by the module, and detect the discovery message sent by the discovered UE.

发现消息格式确定模块，用于根据预先确定的物理资源的信息与发现消息格式的对应关系，确定需要检测发现消息的各个物理资源对应的发现消息格式； The discovery message format determining module is configured to determine, according to the correspondence between the information of the predetermined physical resource and the format of the discovery message, the format of the discovery message corresponding to each physical resource that needs to detect the discovery message;

发现消息检测模块，用于在需要检测发现消息的各个物理资源上，按照确定的物理资源对应的发现消息格式检测被发现 UE发送的发现消息。 The discovery message detection module is configured to determine the physical resources on each physical resource that needs to detect the discovery message. The discovery message format corresponding to the source detects the discovery message sent by the UE.

本发明实施例提供的一种检测发现消息的***，包括： A system for detecting a discovery message according to an embodiment of the present invention includes:

控制节点，用于向 UE发送发现序列的信息与发现消息格式的对应关系； a control node, configured to send, to the UE, a correspondence between the information of the discovery sequence and the format of the discovery message;

UE, 用于接收并保存发现序列的信息与发现消息格式的对应关系；并在检测到被发现 UE发送的发现序列后，根据所述发现序列的信息与发现消息格式的对应关系，确定所述发现序列对应的发现消息格式；按照确定的发现消息格式，检测所述被发现 UE发送的发现消息。 a UE, configured to receive and save a correspondence between the information of the discovery sequence and the format of the discovery message; and after detecting the discovery sequence sent by the discovered UE, determining, according to the correspondence between the information of the discovery sequence and the format of the discovery message, And discovering a discovery message format corresponding to the sequence; and detecting, according to the determined discovery message format, the discovery message sent by the discovered UE.

控制节点，用于向 UE发送物理资源的信息与发现消息格式的对应关系； a control node, configured to send, to the UE, a correspondence between the information of the physical resource and the format of the discovery message;

UE, 用于接收并保存所述物理资源的信息与发现消息格式的对应关系；并根据所述物理资源的信息与发现消息格式的对应关系，确定需要检测发现消息的各个物理资源对应的发现消息格式；在需要检测发现消息的各个物理资源上，按照确定的物理资源对应的发现消息格式检测被发现 UE发送的发现消息。 a UE, configured to receive and save a correspondence between the information of the physical resource and a format of the discovery message; and determine, according to the correspondence between the information of the physical resource and the format of the discovery message, a discovery message corresponding to each physical resource that needs to detect the discovery message. The discovery message sent by the discovered UE is detected according to the discovery message format corresponding to the determined physical resource on each physical resource that needs to detect the discovery message.

控制节点，向 UE发送被发现 UE的发现消息格式指示信息； And the control node sends the discovery message format indication information of the discovered UE to the UE;

UE, 用于根据所述控制节点发送的被发现 UE的发现消息格式指示信息，确定被发现 UE的发现消息格式；按照确定的被发现 UE的发现消息格式，检测所述被发现 UE发送的发现消息。 The UE is configured to determine, according to the discovery message format indication information of the discovered UE sent by the control node, a discovery message format of the discovered UE, and detect the discovery sent by the discovered UE according to the determined discovery message format of the discovered UE. Message.

本发明实施例提供的技术方案，首先确定发现消息格式，然后按照发现消息格式去检测发现消息，不需要盲检所有可能的发现消息格式，因此降低了发现消息的检测复杂度。附图说明 The technical solution provided by the embodiment of the present invention first determines the discovery message format, and then detects the discovery message according to the discovery message format, and does not need to blindly check all possible discovery message formats, thereby reducing the detection complexity of the discovery message. DRAWINGS

图 1为本发明实施例提供的第一种检测发现消息的方法流程图； 1 is a flowchart of a method for detecting a discovery message according to an embodiment of the present invention;

图 2为本发明实施例提供的第一种检测发现消息的方法信令图； 2 is a signaling diagram of a method for detecting a discovery message according to an embodiment of the present invention;

图 3为本发明实施例提供的第二种检测发现消息的方法流程图； FIG. 3 is a flowchart of a method for detecting a discovery message according to an embodiment of the present disclosure;

图 4为本发明实施例提供的第二种检测发现消息的方法信令图； 4 is a signaling diagram of a second method for detecting a discovery message according to an embodiment of the present invention;

图 5为本发明实施例提供的第三种检测发现消息的方法流程图； FIG. 5 is a flowchart of a third method for detecting a discovery message according to an embodiment of the present invention;

图 6为本发明实施例提供的第三种检测发现消息的方法信令图； 6 is a signaling diagram of a third method for detecting a discovery message according to an embodiment of the present invention;

图 7为本发明实施例提供的第一种 UE结构示意图； FIG. 7 is a schematic structural diagram of a first UE according to an embodiment of the present disclosure;

图 8为本发明实施例提供的第二种 UE结构示意图； FIG. 8 is a schematic structural diagram of a second UE according to an embodiment of the present disclosure;

图 9为本发明实施例提供的一种***结构示意图。具体实施方式本发明实施例提供一种检测发现消息的实现方案。该方案中，发现 UE根据预先确定的发现序列的信息与发现消息格式的对应关系，控制节点指示的发现消息格式，或者预先确定的物理资源的信息与发现消息格式的对应关系，确定被发现 UE的发现消息格式，进而按照确定的发现消息格式检测被发现 UE发送的发现消息。本发明实施例提供的技术方案，由于能够确定发现消息格式，并按照发现消息格式去检测发现消息，不需要盲检所有可能的发现消息格式，因此降低了发现消息的检测复杂度。 FIG. 9 is a schematic structural diagram of a system according to an embodiment of the present invention. detailed description The embodiment of the invention provides an implementation scheme for detecting a discovery message. In this solution, the UE is found to determine the discovered UE according to the correspondence between the information of the predetermined discovery sequence and the format of the discovery message, the format of the discovery message indicated by the control node, or the correspondence between the information of the predetermined physical resource and the format of the discovery message. The discovery message format, and then the discovery message sent by the discovered UE is detected according to the determined discovery message format. According to the technical solution provided by the embodiment of the present invention, since the discovery message format can be determined and the discovery message is detected according to the discovery message format, all possible discovery message formats need not be blindly checked, thereby reducing the detection complexity of the discovery message.

本发明实施例中，控制节点可以但不仅限于^ &站、 D2D通信网络中作为控制节点的 UE等等。其中，基站包括宏基站（ Macro )、微基站（ Micro )、微微基站（Pico )、家庭基站或称为毫微微基站（Femto )等，以及其它可能的釆用 TDD模式的无线接入点（ AP )。 In the embodiment of the present invention, the control node may be, but not limited to, a UE and a UE as a control node in a D2D communication network. The base station includes a macro base station (Mac), a micro base station (Micro), a pico base station (Pico), a home base station or a femto base station (Femto), and other possible wireless access points (APs) in the TDD mode. ).

本发明实施例中，发现消息格式可以但不仅限于包括以下信息之一或任意组合：发现消息所包含的信息域，发现消息的消息长度，发现消息的调制方式，发现消息的信道编码方式，发现消息的加扰方式，发现消息的循环冗余（ CRC )校验方式。 In the embodiment of the present invention, the discovery message format may include, but is not limited to, one or any combination of the following information: the information field included in the discovery message, the message length of the discovery message, the modulation mode of the discovery message, the channel coding mode of the discovery message, and the discovery The scrambling method of the message, and the cyclic redundancy (CRC) check mode of the message is found.

其中，发现消息所包含的信息域，即发现消息所包含的信息内容。所谓信息域，可以是承载小区 ID的信息域、承载设备 ID的信息域、承载应用 ID的信息域、承载服务类型的信息域等等。发现消息的消息长度，即发现消息的所包含的比特数大小。发现消息的信道编码方式，可以是 RM编码、卷积编码等等。 The information field included in the discovery message is the information content included in the discovery message. The information domain may be an information domain carrying a cell ID, an information domain carrying a device ID, an information domain carrying an application ID, an information domain carrying a service type, and the like. The message length of the discovery message, that is, the size of the number of bits included in the discovery message. The channel coding method of the discovery message can be RM coding, convolutional coding, and the like.

如果由上述信息中的一个或部分来发现消息格式，那么，在确定了发现消息格式后，可以根据发现消息格式获取上述的其他信息，以用于发现消息的检测、被发现 UE的识别等等。举例说明如下： If the message format is found by one or part of the above information, after the discovery message format is determined, the foregoing other information may be obtained according to the discovery message format, for detecting the detection of the message, identifying the discovered UE, and the like. . An example is as follows:

假设发现消息格式定义为发现消息的长度，那么，通过预先的约定，在确定发现消息的长度后，就可以获知发现消息的其他信息（如发现消息的信息域，发现消息的调制方式，发现消息的信道编码方式，发现消息的加扰方式，发现消息的循环冗余校验方式等等）。进而根据获取的发现消息的调制方式、信道编码方式、加扰方式、循环冗余校验方式等等去检测发现消息，根据发现消息的信息域从发现消息中获取相应的信息以进行被发现 UE 的识别。 Assuming that the message format is defined as the length of the discovery message, after the length of the discovery message is determined by a prior agreement, other information of the discovery message can be obtained (such as the information field of the discovery message, the modulation mode of the discovery message, and the discovery message). Channel coding method, discovering the scrambling method of the message, discovering the cyclic redundancy check mode of the message, etc.). And further detecting the discovery message according to the acquired modulation mode, channel coding mode, scrambling mode, cyclic redundancy check mode, and the like, and acquiring corresponding information from the discovery message according to the information field of the discovery message to perform the discovered UE. Identification.

下面将结合附图，对本发明实施例提供的技术方案进行详细说明。 The technical solutions provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

图 1所示的检测发现消息的方法中，发现 UE是基于发现序列的信息与发现消息格式的对应关系确定发现消息格式的，其具体包括如下操作： The method for detecting a discovery message shown in FIG. 1 finds that the UE determines the format of the discovery message based on the correspondence between the information of the discovery sequence and the format of the discovery message, and specifically includes the following operations:

步骤 100、发现 UE检测到被发现 UE发送的发现序列后，根据预先确定的发现序列的信息与发现消息格式的对应关系，确定该发现序列对应的发现消息格式。 Step 100: After detecting the discovery sequence sent by the UE, the UE determines the format of the discovery message corresponding to the discovery sequence according to the correspondence between the information of the predetermined discovery sequence and the format of the discovery message.

步骤 110、发现 UE按照确定的发现消息格式，检测该被发现 UE发送的发现消息。其中，发现序列的信息可以但不仅限于包括以下信息之一或任意组合： Step 110: The discovery UE detects the discovery message sent by the discovered UE according to the determined discovery message format. The information of the discovery sequence may be, but is not limited to, including one or any combination of the following information:

发现序列的序列编号，即生成发现序列所使用的序列 ID; 发现序列的循环移位值；发现序列占用的时域资源；发现序列占用的频域资源。其中，发现序列占用的时域资源具体可以是发现序列所在帧或者子帧的编号，也可以是发现序列所占用的正交频分复用 ( OFDM )符号索引等等。 Find the sequence number of the sequence, ie the sequence ID used to generate the discovery sequence; find the cyclic shift value of the sequence; The time domain resource occupied by the sequence; the frequency domain resource occupied by the discovery sequence. The time domain resource occupied by the discovery sequence may be a frame or a subframe number of the discovery sequence, or an orthogonal frequency division multiplexing (OFDM) symbol index occupied by the discovery sequence.

本发明实施例中，发现序列的信息与发现消息格式的对应关系的实现形式有多种。例如，以列表的形式，关联每对存在对应关系的发现序列的信息与发现消息格式。也可以以发现序列的信息为变量的发现消息格式的函数表示对应关系。等等。 In the embodiment of the present invention, there are various implementation forms of the correspondence between the information of the discovery sequence and the format of the discovery message. For example, in the form of a list, the information of the discovery sequence and the discovery message format in which each pair has a corresponding relationship is associated. It is also possible to represent the correspondence by a function of the discovery message format in which the information of the discovery sequence is a variable. and many more.

假设发现序列的信息与发现消息格式的对应关系，具体是发现序列的序列编号与发现消息格式的对应关系，则该对应关系可以表示为： Assuming that the correspondence between the information of the discovery sequence and the format of the discovery message is specifically the correspondence between the sequence number of the discovery sequence and the format of the discovery message, the correspondence may be expressed as:

k=n seq mod M k=n seq mod M

其中， A为发现消息格式的索引， n seq为发现序列的序列编号， M为发现消息格式的总数。 Where A is the index of the discovery message format, n seq is the sequence number of the discovery sequence, and M is the total number of discovery message formats.

这种假设情况下，发现 UE首先根据上述函数所表示的对应关系，确定发现消息格式的索引，然后根据确定的发现消息格式的索引，确定发现序列对应的发现消息格式。 In this hypothesis, the UE first determines the index of the discovery message format according to the correspondence represented by the above function, and then determines the discovery message format corresponding to the discovery sequence according to the determined index of the discovery message format.

假设发现序列的信息与发现消息格式的对应关系，具体是发现序列的循环移位值与发现消息格式的对应关系，则该对应关系可以表示为： Assuming that the correspondence between the sequence information and the discovery message format is found, specifically, the correspondence between the cyclic shift value of the discovery sequence and the discovery message format, the correspondence may be expressed as:

k=n cs mod M k=n cs mod M

其中， A:为发现消息格式的索引，《— 为发现序列的循环移位值， Μ为发现消息格式的总数。 Among them, A: is the index of the discovery message format, “—to find the cyclic shift value of the sequence, Μ is the total number of discovery message formats.

这种假设情况下，发现 UE首先根据该函数表示的对应关系，确定发现消息格式的索引，然后根据确定的发现消息格式的索引，确定发现序列对应的发现消息格式。 In this hypothesis, the UE first determines the index of the discovery message format according to the correspondence represented by the function, and then determines the discovery message format corresponding to the discovery sequence according to the determined index of the discovery message format.

基于图 1的上述任一方法实施例，发现 UE还可以根据预先确定的发现序列的循环移位值与发现消息的导频信号的循环移位值的对应关系，确定发现消息的导频信号的循环移位值。该预先确定的发现序列的循环移位值与发现消息的导频信号的循环移位值的对应关系为： Based on any of the foregoing method embodiments of FIG. 1, it is found that the UE may further determine the pilot signal of the discovery message according to the correspondence between the cyclic shift value of the predetermined discovery sequence and the cyclic shift value of the pilot signal of the discovery message. The cyclic shift value. The correspondence between the cyclic shift value of the predetermined discovery sequence and the cyclic shift value of the pilot signal of the discovery message is:

n cs=m cs n cs=m cs

n cs为发现序列的循环移位值， m cs为发现消息的导频信号的循环移位值。 n cs is the cyclic shift value of the discovery sequence, and m cs is the cyclic shift value of the pilot signal of the discovery message.

相应的，上述步骤 110的具体实现方式可以是：发现 UE按照确定的发现消息的导频信号的循环移位值，检测发现消息的导频信号；使用检测到的发现消息的导频信号进行信道估计；根据信道估计结果，按照确定的发现消息格式，检测被发现 UE发送的发现消息。 Correspondingly, the specific implementation manner of the foregoing step 110 may be: detecting that the UE detects the pilot signal of the discovery message according to the cyclic shift value of the pilot signal of the determined discovery message; and using the pilot signal of the detected discovery message to perform the channel Estimating; according to the channel estimation result, detecting the discovery message sent by the discovered UE according to the determined discovery message format.

应当指出的是，以上只是确定发现消息的导频信号的循环移位值的一种实现方式。还可以有其他的导频信号的循环移位值的确定方式，例如，预先约定导频信号的循环移位值，控制节点告知导频信号的循环移位值等等。当然，也可以通过盲检来检测发现消息的导频信号。基于图 1的上述任一方法实施例，其中，发现序列的信息与发现消息格式的对应关系可以是 UE之间预先约定的，也可以是 UE与控制节点之间预先约定的，还可以是控制节点预先发送的。 It should be noted that the above is just one implementation of determining the cyclic shift value of the pilot signal of the discovery message. There may also be other ways of determining the cyclic shift value of the pilot signal, for example, pre-arranging the cyclic shift value of the pilot signal, the control node informing the cyclic shift value of the pilot signal, and the like. Of course, the pilot signal of the discovery message can also be detected by blind detection. Based on any of the foregoing method embodiments of FIG. 1 , the correspondence between the information of the discovery sequence and the format of the discovery message may be pre-agreed between the UEs, or may be pre-agreed between the UE and the control node, or may be controlled. The node is pre-sent.

图 2所示的是检测发现消息的方法信令交互图，该方法是基于发现序列的信息与发现消息格式的对应关系确定发现消息格式的，其具体包括如下操作： FIG. 2 is a method for detecting a discovery message. The method is based on the mapping between the information of the discovery sequence and the format of the discovery message to determine the format of the discovery message. The method includes the following operations:

步骤 200、 UE B (即被发现 UE )在发现资源上发送发现信号，发现信号包括发现序列和发现消息。 Step 200: UE B (ie, the discovered UE) sends a discovery signal on the discovery resource, where the discovery signal includes a discovery sequence and a discovery message.

较佳地， UE B周期性发送发现信号。 Preferably, UE B periodically transmits a discovery signal.

其中，发现资源是 UE发送的发现信号占用的物理资源，包括时域资源、频域资源、和码资源，可以是 UE专属的物理资源，也可以是小区专属的物理资源，还可以是广播的物理资源。 The discovery resource is a physical resource occupied by the discovery signal sent by the UE, including a time domain resource, a frequency domain resource, and a code resource, and may be a physical resource exclusive to the UE, or may be a physical resource exclusive to the cell, or may be a broadcast Physical resources.

一个发现信号的发现序列和发现消息在同一子帧的不同位置上发送。发现信号的发现序列和发现消息可以是相互独立的信号。发现信号的发现序列还可以是发现消息的导频信号（例如 m序列或者 ZC序列）。 The discovery sequence and discovery message of a discovery signal are sent at different locations in the same subframe. The discovery of the discovery signal The sequence and discovery messages can be independent signals. The discovery sequence of the discovery signal can also be a pilot signal (e.g., an m-sequence or a ZC sequence) that discovers the message.

步骤 210、 UE A (即发现 UE ) 在 UE B的发现资源上检测到发现序列。 Step 210: UE A (ie, the discovery UE) detects a discovery sequence on the discovery resource of UE B.

UE A检测发现序列的方法可以重用目前 LTE***中 UE检测同步信号的方法。 The method in which the UE A detects the discovery sequence can reuse the method in which the UE detects the synchronization signal in the current LTE system.

其中，如果 UE B是 UE A需要发现的目标 UE, 且 UE A获知 UE B的发现资源，则 If the UE B is the target UE that the UE A needs to discover, and the UE A knows the discovery resource of the UE B,

UE A可以仅在 UE B的发现资源上检测发现序列。否则， UE A在所有可能的发现资源上检测发现序列。 UE A may detect the discovery sequence only on the discovery resources of UE B. Otherwise, UE A detects the discovery sequence on all possible discovery resources.

其中，可能的发现资源可以是预先约定的，也可以是控制节点预先发送给 UE A的。步骤 220、 UE A获取发现序列的信息，根据预先确定的发现序列的信息与发现消息格式的对应关系，确定与该发现序列对应的发现消息格式（即与该发现序列属于同一个发现信号的发现消息的发现消息格式）。 The possible discovery resources may be pre-agreed, or may be sent by the control node to UE A in advance. Step 220: The UE A obtains the information of the discovery sequence, and determines, according to the correspondence between the information of the predetermined discovery sequence and the format of the discovery message, the discovery message format corresponding to the discovery sequence (ie, the discovery that belongs to the same discovery signal as the discovery sequence). The message discovery message format).

其中, UE A获取的发现序列的信息，是上述对应关系中描述的发现序列的信息。对于发现序列的信息与发现消息格式的对应关系，可以参见上述方法实施例的描述，这里不再赘述。 The information of the discovery sequence acquired by the UE A is the information of the discovery sequence described in the foregoing correspondence. For the corresponding relationship between the information of the discovery sequence and the format of the discovery message, refer to the description of the foregoing method embodiment, and details are not described herein again.

步骤 230、 UE A根据确定的发现消息的格式，在 UE B的发现资源上检测上述发现序列对应的发现消息（即与该发现序列属于同一个发现信号的发现消息）。 Step 230: The UE A detects, according to the format of the determined discovery message, the discovery message corresponding to the discovery sequence (that is, the discovery message that belongs to the same discovery signal as the discovery sequence) on the discovery resource of the UE B.

当 UE A检测到 UE B发送的发现消息，就可以根据该发现消息的内容进行 UE识别等操作。 When UE A detects the discovery message sent by UE B, it can perform UE identification and other operations according to the content of the discovery message.

图 3所示的检测发现消息的方法中，发现 UE是基于控制节点发送的被发现 EU的发现消息格式指示信息确定发现消息格式的，其具体包括如下操作： In the method for detecting a discovery message, as shown in FIG. 3, the UE is found to determine the format of the discovery message based on the discovery message format indication information of the discovered EU sent by the control node, and specifically includes the following operations:

步骤 300、发现 UE根据控制节点发送的被发现 UE的发现消息格式指示信息，确定被发现 UE的发现消息格式。 Step 300: The discovery UE determines, according to the discovery message format indication information of the discovered UE sent by the control node, that the UE is determined to be Discover the UE's discovery message format.

较佳地，如果控制节点是基站，那么基站通过物理层信令或者高层信令向发现 UE发送被发现 UE的发现消息格式指示信息的。 Preferably, if the control node is a base station, the base station sends the discovery message format indication information of the discovered UE to the discovery UE through physical layer signaling or higher layer signaling.

本发明实施例中，被发现 UE的发现消息是指由被发现 UE发送的发现消息。相应的，被发现 UE的发现消息格式是指由被发现 UE发送的发现消息的发现消息格式，被发现 UE 的发现消息格式指示信息是指由被发现 UE发送的发现消息的发现消息格式指示信息。 In the embodiment of the present invention, the discovery message of the discovered UE refers to the discovery message sent by the discovered UE. Correspondingly, the discovery message format of the discovered UE refers to the discovery message format of the discovery message sent by the discovered UE, and the discovery message format indication information of the discovered UE refers to the discovery message format indication information of the discovery message sent by the discovered UE. .

其中，发现消息格式指示信息既可以是对发现消息格式的参数完整描述，例如包括信息域，发现消息的消息长度，发现消息的调制方式，发现消息的信道编码方式，发现消息的加扰方式，和 /或发现消息的循环冗余校验方式。那么，发现 UE具体可以从该发现消息格式指示信息中获取发现消息格式的参数，从而确定发现消息格式。 The discovery message format indication information may be a complete description of the parameters of the discovery message format, for example, including the information domain, the message length of the discovery message, the modulation mode of the discovery message, the channel coding mode of the discovery message, and the scrambling manner of the discovery message. And/or discover the cyclic redundancy check method of the message. Then, the UE may specifically obtain the parameter of the discovery message format from the discovery message format indication information, thereby determining the discovery message format.

发现消息格式指示信息也可以是发现消息格式的索引等信息。那么，发现 UE具体可以根据该发现消息格式指示信息，从保存的多个发现消息格式中查找与该发现消息格式指示信息匹配的发现消息格式，并确定其为被发现 UE的发现消息格式。 The discovery message format indication information may also be information such as an index of the discovery message format. Then, the UE may find the discovery message format that matches the discovery message format indication information from the saved multiple discovery message formats according to the discovery message format indication information, and determine that it is the discovery message format of the discovered UE.

步骤 310、发现 UE按照确定的被发现 UE的发现消息格式，检测被发现 UE发送的发现消息。 Step 310: The discovery UE detects the discovery message sent by the discovered UE according to the determined discovery message format of the discovered UE.

较佳地，被发现 UE的发现消息格式指示信息可以通过单独的信令发送，也可以与被发现 UE的发现消息所占用的物理资源指示信息（或被发现 UE的发现信号所占用的物理资源指示信息）一同发送。相应的，发现 UE还接收控制节点发送的指示消息，该指示消息中包括被发现 UE的发现消息所占用的物理资源指示信息（或被发现 UE的发现信号所占用的物理资源指示信息）、和该被发现 UE 的发现消息格式指示信息。进而，上述步骤 310的具体实现方式可以是：按照确定的被发现 UE的发现消息格式，在上述物理资源指示信息所指示的物理资源上检测该被发现 UE发送的发现消息。 Preferably, the discovery message format indication information of the discovered UE may be sent through separate signaling, or may be related to the physical resource indication information occupied by the discovery message of the discovered UE (or the physical resource occupied by the discovery signal of the discovered UE). The instructions are sent together. Correspondingly, the UE is further configured to receive an indication message sent by the control node, where the indication message includes physical resource indication information occupied by the discovery message of the discovered UE (or physical resource indication information occupied by the discovery signal of the discovered UE), and The discovery message format indication information of the discovered UE. Further, the specific implementation of the foregoing step 310 may be: detecting, according to the determined discovery message format of the discovered UE, the discovery message sent by the discovered UE on the physical resource indicated by the physical resource indication information.

图 4所示的是检测发现消息的方法信令交互图，该方法于基站发送的被发现 UE 的发现消息格式指示信息确定发现消息格式的，其具体包括如下操作： FIG. 4 is a method for detecting a discovery message. The method is used to determine the format of the discovery message by the discovery message format indication information of the discovered UE sent by the base station, and specifically includes the following operations:

步骤 400、基站通过高层信令向 UE A (即发现 UE )和 UE B (即被发现 UE )发送针对 UE B的指示消息，该指示消息中包括 UE B的发现信号所占用的物理资源指示信息和 UE B的发现消息格式指示信息。 Step 400: The base station sends an indication message for the UE B to the UE A (ie, the discovery UE) and the UE B (ie, the discovered UE) by using the high layer signaling, where the indication message includes the physical resource indication information occupied by the discovery signal of the UE B. And the discovery message format indication information of UE B.

应当指出的是，基站也可以通过物理层信令发送针对 UE B的指示消息。基站还可以通过不同的信令分别发送 UE B的发现信号所占用的物理资源指示信息和 UE B的发现消息格式指示信息。 It should be noted that the base station may also send an indication message for UE B through physical layer signaling. The base station may also separately send the physical resource indication information occupied by the discovery signal of the UE B and the discovery message format indication information of the UE B by using different signaling.

当然，基站也可以仅发送 UE B的发现消息格式指示信息。 Of course, the base station may also only send the discovery message format indication information of UE B.

步骤 410、 UE A和 UE B接收针对 UE B的指示消息，并才居该指示消息确定 UE B 的发现信号所占用的物理资源（其中包括 UE B的发现消息所占用的物理资源），以及 UE B 的发现消息格式。 Step 410: UE A and UE B receive an indication message for UE B, and determine the physical resource occupied by the discovery signal of UE B, including the physical resource occupied by the discovery message of UE B, and the UE. B Discovery message format.

如果基站没有发送 UE B的发现信号所占用的物理资源， UE B可以通过其他方式确定其发现信号所占用的物理资源。例如， #>据预先的约定来确定；或者，将上一次发送发现信号所占用的物理资源确定为本次发送发现信号所占用的物理资源。 If the base station does not send the physical resources occupied by the discovery signal of the UE B, the UE B may determine the physical resources occupied by the discovery signal by other means. For example, #> is determined according to a prior agreement; or, the physical resource occupied by the last transmission of the discovery signal is determined as the physical resource occupied by the transmission of the discovery signal.

步骤 420、 UE B在确定的发现信号所占用的物理资源上，按照确定的发现消息格式发送发现信号，发现信号包括发现消息。 Step 420: The UE B sends a discovery signal according to the determined discovery message format on the physical resource occupied by the determined discovery signal, where the discovery signal includes a discovery message.

其中，发现信号中还可以包括发现序列。那么，一个发现信号的发现序列和发现消息在同一子帧的不同位置上发送。发现信号的发现序列和发现消息可以是相互独立的信号。发现信号的发现序列还可以是发现消息的导频信号（例如 m序列或者 ZC序列）。 Wherein, the discovery signal may further include a discovery sequence. Then, the discovery sequence of the discovery signal and the discovery message are sent at different locations in the same subframe. The discovery sequence and discovery message of the discovery signal can be independent signals. The discovery sequence of the discovery signal can also be a pilot signal (e.g., an m-sequence or a ZC sequence) that discovers the message.

步骤 430、 UE A在确定的 UE B的发现信号所占用的物理资源上，按照确定的 UE B 的发现消息格式检测 UE B的发现消息。 Step 430: The UE A detects the UE B discovery message according to the determined UE B discovery message format on the determined physical resource occupied by the UE B discovery signal.

如果发现信号还包括发现序列，则 UE A还在确定的 UE B的发现信号所占用的物理资源上，检测发现序列。其具体实现方式可以参照上述步骤 210的描述。 If the discovery signal further includes a discovery sequence, UE A also detects the discovery sequence on the physical resource occupied by the determined discovery signal of UE B. For a specific implementation manner, reference may be made to the description of step 210 above.

如果基站没有向 UE A发送 UE B的发现信号所占用的物理资源， UE A可以通过其他方式确定，例如按照预先的约定来确定。或者， UE A可以按照确定的 UE B的发现消息格式，在所有可能的发现资源上盲检 UE B的发现消息。 If the base station does not send the physical resources occupied by the discovery signal of UE B to UE A, UE A may determine by other means, for example, according to a prior agreement. Alternatively, UE A may blindly check UE B's discovery message on all possible discovery resources according to the determined UE B's discovery message format.

图 5所示的检测发现消息的方法中，发现 UE是基于物理资源的信息与发现消息格式的对应关系确定发现消息格式的，其具体包括如下操作： In the method for detecting a discovery message, as shown in FIG. 5, the UE is found to determine the format of the discovery message based on the correspondence between the information of the physical resource and the format of the discovery message, and specifically includes the following operations:

步骤 500、发现 UE根据预先确定的物理资源的信息与发现消息格式的对应关系，确定需要检测发现消息的各个物理资源对应的发现消息格式。 Step 500: The discovery UE determines, according to the correspondence between the information of the predetermined physical resource and the format of the discovery message, the format of the discovery message corresponding to each physical resource that needs to detect the discovery message.

其中，需要检测发现消息的物理资源可以是发现 UE确定的被发现 UE的发现信号所占用的物理资源，也可以是发现 UE从所有用于发送发现信号的物理资源中确定的全部或部分物理资源。 The physical resource that needs to detect the discovery message may be the physical resource occupied by the discovery signal of the discovered UE determined by the UE, or may be all or part of the physical resource determined by the UE from all the physical resources used to send the discovery signal. .

步骤 510、发现 UE在需要检测发现消息的各个物理资源上，按照确定的物理资源对应的发现消息格式检测被发现 UE发送的发现消息。 Step 510: The discovery UE detects, on each physical resource that needs to detect the discovery message, the discovery message sent by the discovered UE according to the format of the discovery message corresponding to the determined physical resource.

其中，物理资源的信息与发现消息格式的对应关系可以但不仅限于包括以下任意一种： The correspondence between the information of the physical resource and the format of the discovery message may be, but is not limited to, including any one of the following:

子帧与发现消息格式的对应关系（具体的，可以是子帧编号与发现消息格式的对应关系）；频域资源与发现消息格式的对应关系（具体的，可以是频域资源的标识与发现消息格式的对应关系）；码序列与发现消息格式的对应关系（具体的，可以是码序列的标识与发现消息格式的对应关系）；子帧和频域资源与发现消息格式的对应关系（具体的，可以是子帧编号和频域资源的标识与发现消息格式的对应关系）。 Correspondence between the subframe and the discovery message format (specifically, the correspondence between the subframe number and the discovery message format); the correspondence between the frequency domain resource and the discovery message format (specifically, the identification and discovery of the frequency domain resource) The correspondence between the message format); the correspondence between the code sequence and the format of the discovery message (specifically, it may be the identification of the code sequence and The corresponding relationship between the frame format and the frequency domain resource and the discovery message format (specifically, may be the correspondence between the subframe number and the identifier of the frequency domain resource and the format of the discovery message).

本发明实施例中，物理资源的信息与发现消息格式的对应关系的实现形式有多种。例如，以列表的形式，关联每对存在对应关系的物理资源的信息与发现消息格式。也可以以物理资源的信息为变量的发现消息格式的函数表示对应关系。等等。 In the embodiment of the present invention, there are various implementation forms of the correspondence between the physical resource information and the discovery message format. For example, in the form of a list, the information of each pair of physical resources having a corresponding relationship and the format of the discovery message are associated. It is also possible to represent the correspondence by a function of the discovery message format in which the information of the physical resource is a variable. and many more.

基于图 5的上述任一方法实施例，其中，物理资源的信息与发现消息格式的对应关系可以是 UE之间预先约定，也可以是 UE与控制节点之间预先约定的，还可以是控制节点预先发送的。 Based on the foregoing method embodiment of Figure 5, the correspondence between the information of the physical resource and the format of the discovery message may be pre-agreed between the UEs, or may be pre-agreed between the UE and the control node, or may be a control node. Pre-sent.

图 6所示的是检测发现消息的方法信令交互图，该方法是基于物理资源的信息与发现消息格式的对应关系确定发现消息格式的，其具体包括如下操作： Figure 6 is a method for detecting a discovery message. The method is based on the mapping between the information of the physical resource and the format of the discovery message to determine the format of the discovery message. The method includes the following operations:

步骤 600、 UE B (即被发现 UE )在发现资源上发送发现信号，发现信号包括发现消息。 Step 600: UE B (ie, the discovered UE) sends a discovery signal on the discovery resource, and the discovery signal includes a discovery message.

该步骤的具体实现方式可以是， UE B根据发现消息需要携带的信息，确定发现消息格式，然后根据预先确定的物理资源的信息与发现消息格式的对应关系，选择发现消息格式对应的物理资源（即发现资源）发送发现信号。其中，物理资源的信息与发现消息格式的对应关系可以是 UE之间预先约定，也可以是 UE与控制节点之间预先约定的，还可以是控制节点预先发送的。 The specific implementation of the step may be: the UE B determines the format of the discovery message according to the information that the discovery message needs to carry, and then selects the physical resource corresponding to the discovery message format according to the correspondence between the predetermined physical resource information and the discovery message format ( That is, the discovery resource sends a discovery signal. The correspondence between the information of the physical resource and the format of the discovery message may be pre-agreed between the UEs, or may be pre-agreed between the UE and the control node, or may be pre-sent by the control node.

其中，发现资源是 UE发送的发现信号占用的物理资源，可以是 UE专属的物理资源，也可以是小区专属的物理资源，还可以是广播的物理资源。 The discovery resource is a physical resource occupied by the discovery signal sent by the UE, and may be a physical resource exclusive to the UE, a physical resource specific to the cell, or a physical resource broadcasted.

其中，可以有多个 UE B, 即多个被发现 UE分别在各自的发现资源上发送发现信号。其中，发现信号还可以携带发现序列。那么，一个发现信号的发现序列和发现消息在同一子帧的不同位置上发送。发现信号的发现序列和发现消息可以是相互独立的信号。发现信号的发现序列还可以是发现消息的导频信号（例如 m序列或者 ZC序列）。 There may be multiple UE Bs, that is, multiple discovered UEs respectively send discovery signals on their respective discovery resources. Among them, the discovery signal can also carry the discovery sequence. Then, the discovery sequence of the discovery signal and the discovery message are sent at different locations in the same subframe. The discovery sequence and discovery message of the discovery signal can be independent signals. The discovery sequence of the discovery signal can also be a pilot signal (e.g., an m-sequence or a ZC sequence) that discovers the message.

步骤 610、 UE A (即发现 UE )根据预先确定的物理资源的信息与发现消息格式的对应关系，确定需要检测发现消息的各个物理资源对应的发现消息格式。 Step 610: The UE A (ie, the discovery UE) determines the format of the discovery message corresponding to each physical resource that needs to detect the discovery message according to the correspondence between the information of the predetermined physical resource and the format of the discovery message.

步骤 620、 UE A在需要检测发现消息的各个物理资源上，按照确定的物理资源对应的发现消息格式检测 UE B发送的发现消息。 Step 620: The UE A detects the discovery message sent by the UE B according to the discovery message format corresponding to the determined physical resource, on each physical resource that needs to detect the discovery message.

基于与方法同样的发明构思，本发明实施例还提供一种 UE, 其结构如图 7所示，包括： Based on the same inventive concept as the method, the embodiment of the present invention further provides a UE, and the structure thereof is as shown in FIG. 7, which includes:

发现消息格式确定模块 701 , 用于检测到被发现 UE发送的发现序列后，根据预先确定的发现序列的信息与发现消息格式的对应关系，确定所述发现序列对应的发现消息格式； The discovery message format determining module 701 is configured to detect the discovery sequence sent by the discovered UE, according to the pre-determination Determining a correspondence between the information of the discovery sequence and the format of the discovery message, and determining a format of the discovery message corresponding to the discovery sequence;

发现消息检测模块 702, 用于按照所述发现消息格式确定模块确定的发现消息格式，检测所述被发现 UE发送的发现消息； The discovery message detecting module 702 is configured to detect, according to the discovery message format determined by the discovery message format module, a discovery message sent by the discovered UE;

所述发现消息格式包括以下信息之一或任意组合： The discovery message format includes one or any combination of the following information:

发现消息所包含的信息域，发现消息的消息长度，发现消息的调制方式，发现消息的信道编码方式，发现消息的加扰方式，发现消息的循环冗余校验方式。 The information field included in the discovery message, the message length of the discovery message, the modulation mode of the discovery message, the channel coding mode of the discovery message, the scrambling mode of the discovery message, and the cyclic redundancy check mode of the message are found.

其中，所述发现序列的信息可以但不仅限于包括以下信息之一或任意组合：发现序列的序列编号； The information of the discovery sequence may include, but is not limited to, one or any combination of the following information: a sequence number of the discovery sequence;

发现序列的循环移位值； Finding a cyclic shift value of the sequence;

发现序列占用的时域资源； Discover the time domain resources occupied by the sequence;

发现序列占用的频域资源。 Discover the frequency domain resources occupied by the sequence.

上述第一个 UE实施例中，较佳地，该 UE还包括存储模块，用于保存与其他 UE预先约定或者与控制节点预先约定的所述发现序列的信息与发现消息格式的对应关系；或者，用于保存控制节点预先发送的所述发现序列的信息与发现消息格式的对应关系。相应的，发现消息格式确定模块 701具体用于，检测到被发现 UE发送的发现序列后，根据所述存储模块中保存的发现序列的信息与发现消息格式的对应关系，确定所述发现序列对应的发现消息格式。 In the foregoing first UE embodiment, the UE further includes a storage module, configured to save a correspondence between the information of the discovery sequence and the format of the discovery message that is pre-agreed with other UEs or pre-agreed with the control node; or And storing a correspondence between the information of the discovery sequence pre-sent by the control node and the format of the discovery message. Correspondingly, the discovery message format determining module 701 is specifically configured to: after detecting the discovery sequence sent by the discovered UE, determine, according to the correspondence between the information of the discovery sequence and the format of the discovery message stored in the storage module, Discovery message format.

对于硬件结构包括处理器 801、存储器 802和天线 803的如图 8所示的 UE,在进行发现消息检测时，其各硬件之间的交互可以是： For the UE shown in FIG. 8 of the hardware structure including the processor 801, the memory 802, and the antenna 803, when performing the detection of the message, the interaction between the hardwares may be:

存储器 802保存有预先确定的发现序列的信息与发现消息格式的对应关系。 The memory 802 stores a correspondence between the information of the predetermined discovery sequence and the format of the discovery message.

该对应关系可以是 UE之间预先约定的，也可以是 UE与控制节点之间预先约定的。该对应关系还可以是控制节点预先发送给 UE的，那么， UE通过天线 803接收该对应关系，然后由处理器 801将该对应关系保存到存储器 802中。 The correspondence may be pre-agreed between the UEs, or may be pre-agreed between the UE and the control node. The correspondence may also be sent by the control node to the UE in advance. Then, the UE receives the correspondence through the antenna 803, and then the processor 801 saves the correspondence to the memory 802.

处理器 801通过天线 803检测发现序列，当检测到被发现 UE发送的发现序列后，处理器 801从存储器 802获取发现序列的信息与发现消息格式的对应关系，并根据该对应关系确定发现序列对应的发现消息格式。然后按照该发现消息格式，通过天线 803检测被发现 UE发送的发现消息。 The processor 801 detects the discovery sequence through the antenna 803. After detecting the discovery sequence sent by the UE, the processor 801 acquires the correspondence between the information of the discovery sequence and the format of the discovery message from the memory 802, and determines the corresponding sequence according to the correspondence. Discovery message format. Then, according to the discovery message format, the discovery message sent by the found UE is detected by the antenna 803.

发现消息格式确定模块 701 , 用于根据控制节点发送的被发现 UE的发现消息格式指示信息，确定被发现 UE的发现消息格式； The discovery message format determining module 701 is configured to determine a discovery message format of the discovered UE according to the discovery message format indication information of the discovered UE sent by the control node;

发现消息检测模块 702, 用于按照所述发现消息格式确定模块确定的被发现 UE的发现消息格式，检测所述被发现 UE发送的发现消息； The discovery message detection module 702 is configured to determine, according to the discovery message format, that the discovered UE is determined by the module. a message format, detecting a discovery message sent by the discovered UE;

较佳地，该 UE还包括指示消息接收模块，用于接收所述控制节点发送的指示消息，所述指示消息中包括所述被发现 UE的发现消息所占用的物理资源指示信息、和所述被发现 UE的发现消息格式指示信息。相应的，所述发现消息检测模块 702具体用于，按照确定的被发现 UE的发现消息格式，在所述物理资源指示信息所指示的物理资源上检测所述被发现 UE发送的发现消息。 Preferably, the UE further includes an indication message receiving module, configured to receive an indication message sent by the control node, where the indication message includes physical resource indication information occupied by the discovery message of the discovered UE, and the The discovery message format indication information of the discovered UE. Correspondingly, the discovery message detection module 702 is configured to detect, according to the determined discovery message format of the discovered UE, the discovery message sent by the discovered UE on the physical resource indicated by the physical resource indication information.

存储器 802保存有所有发现消息格式。 Memory 802 holds all discovery message formats.

处理器 801通过天线 803接收控制节点发送的被发现 UE的发现消息格式指示信息。可选的，处理器 801可以通过天线 803接收所述控制节点发送的指示消息，所述指示消息中包括所述被发现 UE的发现消息所占用的物理资源指示信息、和所述被发现 UE的发现消息格式指示信息。 The processor 801 receives the discovery message format indication information of the discovered UE sent by the control node through the antenna 803. Optionally, the processor 801 may receive, by using the antenna 803, an indication message that is sent by the control node, where the indication message includes physical resource indication information occupied by the discovery message of the discovered UE, and the discovered UE Discover message format indication information.

处理器 801根据接收到的发现消息格式指示信息，确定被发现 UE的发现消息格式。具体的，如果该指示信息完整描述了发现消息格式，则处理器 801获取该指示信息中的参数来确定发现消息格式。如果该指示信息指示的是发现消息格式的索引，则处理器 801根据该发现消息格式的索引 , 从存储器 802中保存的发现消息格式中确定被发现 UE的发现消息格式。 The processor 801 determines the format of the discovery message of the discovered UE according to the received discovery message format indication information. Specifically, if the indication information completely describes the discovery message format, the processor 801 acquires parameters in the indication information to determine the discovery message format. If the indication information indicates an index of the discovery message format, the processor 801 determines the discovery message format of the discovered UE from the discovery message format stored in the memory 802 according to the index of the discovery message format.

处理器 801确定的被发现 UE的发现消息格式，检测所述被发现 UE发送的发现消息，通过天线 803检测被发现 UE发送的发现消息。 The discovery message format of the discovered UE determined by the processor 801 detects the discovery message sent by the discovered UE, and detects the discovery message sent by the discovered UE through the antenna 803.

发现消息格式确定模块 701 , 用于根据预先确定的物理资源的信息与发现消息格式的对应关系，确定需要检测发现消息的各个物理资源对应的发现消息格式； The discovery message format determining module 701 is configured to determine, according to the correspondence between the information of the predetermined physical resource and the format of the discovery message, the format of the discovery message corresponding to each physical resource that needs to detect the discovery message;

发现消息检测模块 702, 用于在需要检测发现消息的各个物理资源上，按照确定的物理资源对应的发现消息格式检测被发现 UE发送的发现消息； The discovery message detecting module 702 is configured to detect, according to the determined discovery message format corresponding to the physical resource, the discovery message sent by the discovered UE, on each physical resource that needs to detect the discovery message;

其中，所述物理资源的信息与发现消息格式的对应关系包括以下任意一种：子帧与发现消息格式的对应关系； The correspondence between the information of the physical resource and the format of the discovery message includes any one of the following: The correspondence between the subframe and the discovery message format;

频域资源与发现消息格式的对应关系； Correspondence between frequency domain resources and discovery message format;

码序列与发现消息格式的对应关系； The correspondence between the code sequence and the discovery message format;

子帧和频域资源与发现消息格式的对应关系。 Correspondence between subframe and frequency domain resources and discovery message format.

基于第三个 UE实施例，较佳地，该 UE还包括存储模块，用于保存与其他 UE预先约定或者与控制节点预先约定的所述物理资源的信息与发现消息格式的对应关系；或者，用于保存控制节点预先发送的所述物理资源的信息与发现消息格式的对应关系。 Based on the third UE embodiment, preferably, the UE further includes a storage module, configured to save a correspondence between the information of the physical resource and the format of the discovery message that is pre-agreed with other UEs or pre-agreed with the control node; or And a correspondence between the information of the physical resource pre-transmitted by the control node and the format of the discovery message.

存储器 802保存有预先确定的物理资源的信息与发现消息格式的对应关系。 The memory 802 stores a correspondence between the information of the predetermined physical resource and the format of the discovery message.

处理器 801从存储器 803中获取物理资源的信息与发现消息格式的对应关系，并根据该对应关系确定需要检测发现消息的各个物理资源对应的发现消息格式。 The processor 801 obtains the correspondence between the information of the physical resource and the format of the discovery message from the memory 803, and determines the format of the discovery message corresponding to each physical resource that needs to detect the discovery message according to the correspondence.

处理器 801通过天线 803在需要检测发现消息的各个物理资源上，按照确定的物理资源对应的发现消息格式检测被发现 UE发送的发现消息。 The processor 801 detects, by using the antenna 803, the discovery message sent by the discovered UE according to the discovery message format corresponding to the determined physical resource on each physical resource that needs to detect the discovery message.

基于与方法同样的发明构思，本发明实施例还提供一种检测发现消息的***，其结构如图 9所示，包括： Based on the same inventive concept as the method, the embodiment of the present invention further provides a system for detecting a discovery message, and the structure thereof is as shown in FIG. 9, and includes:

UE901和控制节点 902。 UE 901 and control node 902.

其中， UE901可以是上述任意 UE实施例提供的 UE。该 UE901的结构如图 7或图 8 所示。 The UE 901 may be the UE provided by any of the foregoing UE embodiments. The structure of the UE 901 is as shown in FIG. 7 or FIG. 8.

该控制节点 902可以是基站，也可以是 D2D通信网络中作为控制节点的 UE。 The control node 902 may be a base station or a UE serving as a control node in a D2D communication network.

如果 UE901是上述第一个 UE实施例提供的 UE, 那么，控制节点 902用于向 UE901 发送所述发现序列的信息与发现消息格式的对应关系。 UE901用于接收并保存发现序列的信息与发现消息格式的对应关系；并在检测到被发现 UE发送的发现序列后，根据发现序列的信息与发现消息格式的对应关系，确定该发现序列对应的发现消息格式；按照确定的发现消息格式，检测被发现 UE发送的发现消息。 If the UE 901 is the UE provided by the first UE embodiment, the control node 902 is configured to send, to the UE 901, the correspondence between the information of the discovery sequence and the format of the discovery message. The UE 901 is configured to receive and save a correspondence between the information of the discovery sequence and the format of the discovery message. After detecting the discovery sequence sent by the discovered UE, determine the corresponding sequence of the discovery sequence according to the correspondence between the information of the discovery sequence and the format of the discovery message. Discovering the message format; detecting the discovery message sent by the discovered UE according to the determined discovery message format.

如果 UE901是上述第二个 UE实施例提供的 UE, 那么，控制节点 902用于向 UE901 发送被发现 UE的发现消息格式指示信息。 UE901 , 用于根据所述控制节点 902发送的被发现 UE的发现消息格式指示信息，确定被发现 UE的发现消息格式；按照确定的被发现 UE的发现消息格式，检测所述被发现 UE发送的发现消息。 If the UE 901 is the UE provided by the second UE embodiment, the control node 902 is configured to send the discovery message format indication information of the discovered UE to the UE 901. The UE 901 is configured to determine, according to the discovery message format indication information of the discovered UE sent by the control node 902, a discovery message format of the discovered UE, and detect, according to the determined discovery message format of the discovered UE, the sent by the discovered UE. Found the message.

如果 UE901是上述第三个 UE实施例提供的 UE, 那么，控制节点 902用于向 UE901 发送物理资源的信息与发现消息格式的对应关系。 UE901 , 用于接收并保存所述物理资源的信息与发现消息格式的对应关系；并根据所述物理资源的信息与发现消息格式的对应关系，确定需要检测发现消息的各个物理资源对应的发现消息格式；在需要检测发现消息的各个物理资源上，按照确定的物理资源对应的发现消息格式检测被发现 UE发送的发现消息。 If the UE 901 is the UE provided by the third UE embodiment, the control node 902 is used to the UE 901. Correspondence between the information of the physical resource and the format of the discovery message. The UE 901 is configured to receive and save a correspondence between the information of the physical resource and the format of the discovery message, and determine, according to the correspondence between the information of the physical resource and the format of the discovery message, a discovery message corresponding to each physical resource that needs to detect the discovery message. The discovery message sent by the discovered UE is detected according to the discovery message format corresponding to the determined physical resource on each physical resource that needs to detect the discovery message.

由于本发明实施例提供的各个 UE和***基于与方法同样的发明构思，因此，其实现可以参照方法侧实施例的描述。 Since each UE and system provided by the embodiment of the present invention is based on the same inventive concept as the method, the implementation thereof may refer to the description of the method side embodiment.

本领域内的技术人员应明白，本发明的实施例可提供为方法、 ***、或计算机程序产品。因此，本发明可釆用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可釆用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介盾（包括但不限于磁盘存储器、 CD-ROM、光学存储器等）上实施的计算机程序产品的形式。 Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention can be embodied in the form of a computer program product embodied on one or more computer-usable storage interfaces (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.

本发明是参照根据本发明实施例的方法、设备（***）、和计算机程序产品的流程图和 /或方框图来描述的。应理解可由计算机程序指令实现流程图和 /或方框图中的每一流程和 /或方框、以及流程图和 /或方框图中的流程和 /或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的装置。 The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each process and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能。 The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的步骤。 These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

尽管已描述了本发明的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。 Although the preferred embodiment of the invention has been described, it will be apparent to those of ordinary skill in the art that <RTIgt; Therefore, the appended claims are intended to be construed as including the preferred embodiments and the modifications

显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。 It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

权利要求 Rights request

1、一种检测发现消息的方法，其特征在于，包括： 1. A method for detecting discovery messages, characterized by including:

检测到被发现 UE发送的发现序列后，根据预先确定的发现序列的信息与发现消息格式的对应关系，确定所述发现序列对应的发现消息格式； After detecting the discovery sequence sent by the discovered UE, determine the discovery message format corresponding to the discovery sequence according to the correspondence between the predetermined discovery sequence information and the discovery message format;

按照确定的发现消息格式，检测所述被发现 UE发送的发现消息。 According to the determined discovery message format, the discovery message sent by the discovered UE is detected.

2、根据权利要求 1 所述的方法，其特征在于，所述发现消息格式包括以下信息之一或任意组合： 2. The method according to claim 1, characterized in that the discovery message format includes one or any combination of the following information:

发现消息所包含的信息域，发现消息的消息长度，发现消息的调制方式，发现消息的信道编码方式，发现消息的加扰方式，发现消息的循环冗余校验方式。 Discover the information field contained in the message, discover the message length of the message, discover the modulation method of the message, discover the channel encoding method of the message, discover the scrambling method of the message, and discover the cyclic redundancy check method of the message.

3、根据权利要求 1 所述的方法，其特征在于，所述发现序列的信息包括以下信息之一或任意组合： 3. The method according to claim 1, characterized in that the information of the discovered sequence includes one or any combination of the following information:

发现序列的序列编号； The sequence number of the discovered sequence;

发现序列的循环移位值； Find the cyclic shift value of the sequence;

4、根据权利要求 1~3 任一项所述的方法，其特征在于，所述发现序列的信息与发现消息格式的对应关系是 UE之间预先约定或者 UE与控制节点之间预先约定的；或者，所述发现序列的信息与发现消息格式的对应关系是控制节点预先发送的。 4. The method according to any one of claims 1 to 3, characterized in that the correspondence between the discovery sequence information and the discovery message format is pre-agreed between UEs or between the UE and the control node; Alternatively, the correspondence between the discovery sequence information and the discovery message format is sent in advance by the control node.

5、一种检测发现消息的方法，其特征在于，包括： 5. A method for detecting discovery messages, characterized by including:

根据控制节点发送的被发现 UE的发现消息格式指示信息，确定被发现 UE的发现消息格式； Determine the discovery message format of the discovered UE according to the discovery message format indication information of the discovered UE sent by the control node;

按照确定的被发现 UE的发现消息格式，检测所述被发现 UE发送的发现消息。 According to the determined discovery message format of the discovered UE, the discovery message sent by the discovered UE is detected.

6、根据权利要求 5 所述的方法，其特征在于，所述发现消息格式包括以下信息之一或任意组合： 6. The method according to claim 5, characterized in that the discovery message format includes one or any combination of the following information:

7、根据权利要求 5或 6所述的方法，其特征在于，该方法还包括： 7. The method according to claim 5 or 6, characterized in that, the method further includes:

接收所述控制节点发送的指示消息，所述指示消息中包括所述被发现 UE的发现消息所占用的物理资源指示信息、和所述被发现 UE的发现消息格式指示信息； Receive an indication message sent by the control node, where the indication message includes physical resource indication information occupied by the discovery message of the discovered UE and discovery message format indication information of the discovered UE;

按照确定的被发现 UE的发现消息格式，检测所述被发现 UE发送的发现消息，包括：按照确定的被发现 UE的发现消息格式，在所述物理资源指示信息所指示的物理资源上检测所述被发现 UE发送的发现消息。 Detecting the discovery message sent by the discovered UE according to the determined discovery message format of the discovered UE includes: detecting the discovery message on the physical resource indicated by the physical resource indication information according to the determined discovery message format of the discovered UE. The discovery message sent by the discovered UE.

8、一种检测发现消息的方法，其特征在于，包括： 8. A method for detecting discovery messages, characterized by including:

根据预先确定的物理资源的信息与发现消息格式的对应关系，确定需要检测发现消息的各个物理资源对应的发现消息格式； According to the corresponding relationship between the predetermined physical resource information and the discovery message format, determine the discovery message format corresponding to each physical resource that needs to detect the discovery message;

在需要检测发现消息的各个物理资源上，按照确定的物理资源对应的发现消息格式检测被发现 UE发送的发现消息。 On each physical resource where the discovery message needs to be detected, the discovery message sent by the discovered UE is detected according to the discovery message format corresponding to the determined physical resource.

9、根据权利要求 8 所述的方法，其特征在于，所述发现消息格式包括以下信息之一或任意组合： 9. The method according to claim 8, characterized in that the discovery message format includes one or any combination of the following information:

10、根据权利要求 8所述的方法，其特征在于，所述物理资源的信息与发现消息格式的对应关系包括以下任意一种： 10. The method according to claim 8, characterized in that the corresponding relationship between the physical resource information and the discovery message format includes any of the following:

子帧与发现消息格式的对应关系； Correspondence between subframes and discovery message formats;

码序列与发现消息格式的对应关系； Correspondence between code sequence and discovery message format;

11、根据权利要求 8~10任一项所述的方法，其特征在于，所述物理资源的信息与发现消息格式的对应关系是 UE之间预先约定或者 UE与控制节点之间预先约定的；或者，所述物理资源的信息与发现消息格式的对应关系是控制节点预先发送的。 11. The method according to any one of claims 8 to 10, characterized in that the correspondence between the physical resource information and the discovery message format is pre-agreed between UEs or between the UE and the control node; Alternatively, the corresponding relationship between the physical resource information and the discovery message format is sent in advance by the control node.

12、一种 UE, 其特征在于，包括： 12. A UE, characterized by: including:

发现消息格式确定模块，用于检测到被发现 UE发送的发现序列后，根据预先确定的发现序列的信息与发现消息格式的对应关系，确定所述发现序列对应的发现消息格式；发现消息检测模块，用于按照所述发现消息格式确定模块确定的发现消息格式，检测所述被发现 UE发送的发现消息。 The discovery message format determination module is used to determine the discovery message format corresponding to the discovery sequence according to the correspondence between the predetermined discovery sequence information and the discovery message format after detecting the discovery sequence sent by the discovered UE; Discovery message detection module , configured to detect the discovery message sent by the discovered UE according to the discovery message format determined by the discovery message format determination module.

13、根据权利要求 12所述的 UE, 其特征在于，所述发现消息格式包括以下信息之一或任意组合： 13. The UE according to claim 12, wherein the discovery message format includes one of the following information or any combination:

14、根据权利要求 12所述的 UE, 其特征在于，所述发现序列的信息包括以下信息之一或任意组合： 14. The UE according to claim 12, wherein the discovery sequence information includes one or any combination of the following information:

发现序列的序列编号； The sequence number of the discovered sequence;

发现序列的循环移位值； Find the cyclic shift value of the sequence;

15、根据权利要求 12~14任一项所述的 UE, 其特征在于，还包括存储模块，用于保存与其他 UE预先约定或者与控制节点预先约定的所述发现序列的信息与发现消息格式的对应关系；或者，用于保存控制节点预先发送的所述发现序列的信息与发现消息格式的对应关系； 15. The UE according to any one of claims 12 to 14, further comprising a storage module for saving the information and discovery message format of the discovery sequence that are pre-agreed with other UEs or pre-agreed with the control node. The corresponding relationship; or, used to save the corresponding relationship between the discovery sequence information sent in advance by the control node and the discovery message format;

发现消息格式确定模块具体用于，检测到被发现 UE发送的发现序列后，根据所述存储模块中保存的发现序列的信息与发现消息格式的对应关系，确定所述发现序列对应的发现消息格式。 The discovery message format determination module is specifically configured to, after detecting the discovery sequence sent by the discovered UE, determine the discovery message format corresponding to the discovery sequence according to the correspondence between the discovery sequence information stored in the storage module and the discovery message format. .

16、一种 UE, 其特征在于，包括： 16. A UE, characterized by: including:

发现消息格式确定模块，用于根据控制节点发送的被发现 UE的发现消息格式指示信息，确定被发现 UE的发现消息格式； A discovery message format determination module, configured to determine the discovery message format of the discovered UE based on the discovery message format indication information of the discovered UE sent by the control node;

发现消息检测模块，用于按照所述发现消息格式确定模块确定的被发现 UE的发现消息格式，检测所述被发现 UE发送的发现消息。 The discovery message detection module is configured to detect the discovery message sent by the discovered UE according to the discovery message format of the discovered UE determined by the discovery message format determination module.

17、根据权利要求 16所述的 UE, 其特征在于，所述发现消息格式包括以下信息之一或任意组合： 17. The UE according to claim 16, wherein the discovery message format includes one of the following information or any combination:

18、根据权利要求 16或 17所述的 UE, 其特征在于，还包括指示消息接收模块，用于接收所述控制节点发送的指示消息，所述指示消息中包括所述被发现 UE的发现消息所占用的物理资源指示信息、和所述被发现 UE的发现消息格式指示信息； 18. The UE according to claim 16 or 17, further comprising an indication message receiving module, configured to receive an indication message sent by the control node, where the indication message includes a discovery message of the discovered UE. The occupied physical resource indication information, and the discovery message format indication information of the discovered UE;

所述发现消息检测模块具体用于，按照确定的被发现 UE的发现消息格式，在所述物理资源指示信息所指示的物理资源上检测所述被发现 UE发送的发现消息。 The discovery message detection module is specifically configured to detect the discovery message sent by the discovered UE on the physical resource indicated by the physical resource indication information according to the determined discovery message format of the discovered UE.

19、一种 UE, 其特征在于，包括： 19. A UE, characterized by: including:

发现消息格式确定模块，用于根据预先确定的物理资源的信息与发现消息格式的对应关系，确定需要检测发现消息的各个物理资源对应的发现消息格式； The discovery message format determination module is used to determine the discovery message format corresponding to each physical resource that needs to detect the discovery message based on the correspondence between the predetermined physical resource information and the discovery message format;

发现消息检测模块，用于在需要检测发现消息的各个物理资源上，按照确定的物理资源对应的发现消息格式检测被发现 UE发送的发现消息。 The discovery message detection module is used to detect the discovery message sent by the discovered UE according to the discovery message format corresponding to the determined physical resource on each physical resource that needs to detect the discovery message.

20、根据权利要求 19所述的 UE, 其特征在于，所述发现消息格式包括以下信息之一或任意组合： 20. The UE according to claim 19, wherein the discovery message format includes one of the following information or any combination:

21、根据权利要求 19所述的 UE, 其特征在于，所述物理资源的信息与发现消息格式的对应关系包括以下任意一种： 21. The UE according to claim 19, wherein the correspondence between the physical resource information and the discovery message format includes any of the following:

子帧与发现消息格式的对应关系；频域资源与发现消息格式的对应关系； Correspondence between subframes and discovery message formats; Correspondence between frequency domain resources and discovery message format;

22、根据权利要求 19~21任一项所述的 UE, 其特征在于，还包括存储模块，用于保存与其他 UE预先约定或者与控制节点预先约定的所述物理资源的信息与发现消息格式的对应关系；或者，用于保存控制节点预先发送的所述物理资源的信息与发现消息格式的对应关系。 22. The UE according to any one of claims 19 to 21, further comprising a storage module for saving the information and discovery message format of the physical resources that are pre-agreed with other UEs or pre-agreed with the control node. or, used to save the correspondence between the physical resource information sent in advance by the control node and the discovery message format.

23、一种检测发现消息的***，其特征在于，包括： 23. A system for detecting discovery messages, characterized by including:

控制节点，用于向 UE发送发现序列的信息与发现消息格式的对应关系； The control node is used to send the correspondence between the discovery sequence information and the discovery message format to the UE;

UE, 用于接收并保存发现序列的信息与发现消息格式的对应关系；并在检测到被发现 UE, used to receive and save the correspondence between the discovery sequence information and the discovery message format; and upon detection of discovery

UE发送的发现序列后，根据所述发现序列的信息与发现消息格式的对应关系，确定所述发现序列对应的发现消息格式；按照确定的发现消息格式，检测所述被发现 UE发送的发现消息。 After the discovery sequence is sent by the UE, the discovery message format corresponding to the discovery sequence is determined according to the correspondence between the discovery sequence information and the discovery message format; and the discovery message sent by the discovered UE is detected according to the determined discovery message format. .

24、一种检测发现消息的***，其特征在于，包括： 24. A system for detecting discovery messages, characterized by including:

控制节点，用于向 UE发送被发现 UE的发现消息格式指示信息； The control node is configured to send discovery message format indication information of the discovered UE to the UE;

UE, 用于根据所述控制节点发送的被发现 UE的发现消息格式指示信息，确定被发现 UE的发现消息格式；按照确定的被发现 UE的发现消息格式，检测所述被发现 UE发送的发现消息。 UE, configured to determine the discovery message format of the discovered UE according to the discovery message format indication information of the discovered UE sent by the control node; and detect the discovery sent by the discovered UE according to the determined discovery message format of the discovered UE. information.

25、一种检测发现消息的***，其特征在于，包括： 25. A system for detecting discovery messages, characterized by including:

控制节点，用于向 UE发送物理资源的信息与发现消息格式的对应关系； The control node is used to send the correspondence between the physical resource information and the discovery message format to the UE;

UE, 用于接收并保存所述物理资源的信息与发现消息格式的对应关系；并根据所述物理资源的信息与发现消息格式的对应关系，确定需要检测发现消息的各个物理资源对应的发现消息格式；在需要检测发现消息的各个物理资源上，按照确定的物理资源对应的发现消息格式检测被发现 UE发送的发现消息。 UE, configured to receive and save the corresponding relationship between the information of the physical resource and the discovery message format; and determine the discovery message corresponding to each physical resource that needs to detect the discovery message according to the corresponding relationship between the information of the physical resource and the discovery message format. Format; On each physical resource where the discovery message needs to be detected, the discovery message sent by the discovered UE is detected according to the discovery message format corresponding to the determined physical resource.