WO2014124610A1

WO2014124610A1 - Device discovery method and apparatus

Info

Publication number: WO2014124610A1
Application number: PCT/CN2014/072167
Authority: WO
Inventors: 吴栓栓; 陈琳; 梁枫; 贺海港; 李运锋; 谢峰
Original assignee: 中兴通讯股份有限公司
Priority date: 2013-02-18
Filing date: 2014-02-17
Publication date: 2014-08-21
Also published as: CN103997727B; CN103997727A

Abstract

Disclosed is a device discovery method, comprising: a first access node receiving a first resource configuration for device discovery, generating a second resource configuration for indicating a device discovery resource to a user equipment (UE) according to the first resource configuration for device discovery, and sending the second resource configuration to the UE. The device discovery resource is used for the UE to perform device discovery in device-to-device communication. Also disclosed at the same time is a device discovery apparatus. By means of the solution of the present invention, not only can device discovery in a cell be realized, but the mutual discovery of UEs residing in different cells can also be realized, thereby significantly improving the universality of the application of device-to-device communication, while solving the device discovery problem of device-to-device communication in a cellular communication system.

Description

一种设备发现方法和装置技术领域 Device discovery method and device

本发明涉及蜂窝无线通信技术，尤其涉及一种设备发现方法和装置。背景技术 The present invention relates to cellular wireless communication technologies, and in particular, to a device discovery method and apparatus. Background technique

由于蜂窝通信实现了对有限频谱资源的复用，使得无线通信技术得到了蓬勃发展。在蜂窝通信***中，当两个用户设备（UE， User Equipment ) 之间有业务传输时，用户设备 1 ( UE1 )到用户设备 2 ( UE2 )的业务数据，将首先通过空口传输给 UE1所在小区的接入节点，所述接入节点可以是基站 ( BS, Base Station ), 或节点 B ( NB， Node B )、或演进节点 B ( eNB， evolved Node B )、或增强的节点 B ( eNB， enhanced Node B )等，所述接入节点通过核心网将用户数据传输给 UE2所在小区的接入节点， UE2所在小区的接入节点将所述业务数据通过空口传输给 UE2。 UE2到 UE1的业务数据传输采用类似的处理流程。 Since cellular communication realizes multiplexing of limited spectrum resources, wireless communication technology has been vigorously developed. In a cellular communication system, when there is a service transmission between two user equipments (UE, User Equipment), the service data of the user equipment 1 (UE1) to the user equipment 2 (UE2) will first be transmitted to the cell where the UE1 is located through the air interface. Access node, the access node may be a base station (BS, Base Station), or a Node B (NB, Node B), or an evolved Node B (eNB, evolved Node B), or an enhanced Node B (eNB, The enhanced node B), etc., the access node transmits the user data to the access node of the cell where the UE2 is located through the core network, and the access node of the cell where the UE2 is located transmits the service data to the UE2 through the air interface. The service data transmission from UE2 to UE1 adopts a similar processing flow.

显然，当两个 UE相距较近时，上述通信方法并不是最优的。实际上，随着移动通信业务的多样化，例如，社交网络、电子支付等应用在无线通信***中的普及，使得近距离用户之间的业务传输需求日益增长。因此，设备到设备（D2D， Device-to-Device ) 的通信模式日益受到广泛关注。所谓 D2D，是指业务数据不经过接入节点和核心网的转发，直接由源 UE通过空口传输给目标 UE，也可称为 ProSe ( Proximity Service, 邻近服务）。这种通信模式区别于传统蜂窝***的通信模式。对于近距离通信的用户来说， D2D不但节省了无线频谱资源，而且降低了核心网的数据传输压力。 Obviously, the above communication method is not optimal when the two UEs are close together. In fact, with the diversification of mobile communication services, for example, the popularity of applications such as social networks and electronic payment in wireless communication systems, the demand for service transmission between close-range users is increasing. Therefore, the communication mode of device-to-device (D2D) has received increasing attention. The so-called D2D means that the service data is not forwarded by the access node and the core network, and is directly transmitted by the source UE to the target UE through the air interface, and may also be called ProSe (Proximity Service). This communication mode is different from the communication mode of a conventional cellular system. For users of short-range communication, D2D not only saves wireless spectrum resources, but also reduces the data transmission pressure of the core network.

在蜂窝通信中，当两个 UE进行通信时，一般情况下 UE自身无需知道对方 UE的位置，而是通过网络侧设备，比如，接入节点或者核心网设备，建立起两个 UE的连接。而对于 D2D通信来说，建立通信连接的前提是 UE 之间的相互发现，也可称为设备到设备发现或设备发现，在实际网络中， UE的位置分布具有随机性，相距较近、具有设备到设备通信条件的 UE有可能驻留在同一个小区，也有可能驻留在不同小区，例如相邻小区， D2D 通信中的设备发现需要考虑上述各种情况。发明内容 In cellular communication, when two UEs communicate, in general, the UE itself does not need to know the location of the other party's UE, but through the network side device, for example, an access node or a core network device. Establish a connection between two UEs. For D2D communication, the premise of establishing a communication connection is mutual discovery between UEs, which may also be called device-to-device discovery or device discovery. In an actual network, the location distribution of UEs is random, close to each other, and UEs with device-to-device communication conditions may reside in the same cell, or may reside in different cells, such as neighboring cells. Device discovery in D2D communication needs to consider the above various situations. Summary of the invention

为解决现有存在的技术问题，本发明实施例主要在于提供一种设备发现方法和装置。 In order to solve the existing technical problems, the embodiments of the present invention mainly provide a device discovery method and device.

本发明实施例的技术方案是这样实现的： The technical solution of the embodiment of the present invention is implemented as follows:

本发明实施例提供的一种设备发现方法，该方法包括： A device discovery method provided by an embodiment of the present invention includes:

第一接入节点接收设备发现第一资源配置，根据所述设备发现第一资源配置生成用于向用户设备指示设备发现资源的第二资源配置，并将所述第二资源配置发送给用户设备； The first access node receiving device discovers the first resource configuration, generates a second resource configuration for indicating the device discovery resource to the user equipment according to the device discovery first resource configuration, and sends the second resource configuration to the user device ;

所述设备发现资源用于用户设备进行设备到设备通信的设备发现。上述方案中，所述第一接入节点接收设备发现第一资源配置，根据所述设备发现第一资源配置生成用于向用户设备指示设备发现资源的第二资源配置，包括： The device discovery resource is used by the user equipment for device discovery of device to device communication. In the above solution, the first access node receiving device discovers the first resource configuration, and generates a second resource configuration for indicating the device discovery resource to the user equipment according to the device discovery first resource configuration, including:

所述第一资源配置由上层网络实体发送，所述第一资源配置包括设备发现资源的上层配置参数，所述第一接入节点根据所述上层配置参数和下属小区的无线帧和 /或无线子帧定时生成用于指示设备发现资源的第二资源配置； The first resource configuration is sent by an upper layer network entity, where the first resource configuration includes an upper layer configuration parameter of the device discovery resource, and the first access node is configured according to the upper layer configuration parameter and a radio frame and/or wireless of the subordinate cell. The subframe timing generates a second resource configuration for indicating that the device discovers the resource;

或者，所述第一资源配置由上层网络实体发送，所述第一资源配置包括设备发现资源的上层配置参数，所述第一接入节点根据所述上层配置参数生成用于指示设备发现资源的第二资源配置。 Or the first resource configuration is sent by an upper layer network entity, where the first resource configuration includes an upper layer configuration parameter of the device discovery resource, and the first access node generates, according to the upper layer configuration parameter, used to indicate that the device discovers the resource. Second resource configuration.

上述方案中，所述第一接入节点接收设备发现第一资源配置，根据所述设备发现第一资源配置生成用于向用户设备 UE指示设备发现资源的第二资源配置，包括： In the above solution, the first access node receiving device discovers the first resource configuration, according to the The device discovers that the first resource configuration generates a second resource configuration for indicating the device discovery resource to the user equipment UE, including:

所述第一资源配置由第二接入节点发送，所述第一资源配置包括所述第二接入节点或所述第二接入节点下属小区的设备发现资源配置参数，第一接入节点根据所述第二接入节点的设备发现资源配置参数和下属小区的无线帧和 /或无线子帧定时生成用于指示设备发现资源的第二资源配置；或者，所述第一资源配置由第二接入节点发送，所述第一资源配置包括所述第二接入节点的设备发现资源配置参数，第一接入节点根据所述第二接入节点的设备发现资源配置参数生成用于指示设备发现资源的第二资源配置。 The first resource configuration is sent by the second access node, where the first resource configuration includes device discovery resource configuration parameters of the second access node or the cell of the second access node, the first access node Generating, according to the device discovery resource configuration parameter of the second access node, and the radio frame and/or the radio subframe timing of the subordinate cell, a second resource configuration for instructing the device to discover the resource; or, the first resource configuration is configured by The second access node sends the device discovery resource configuration parameter of the second access node, and the first access node generates, according to the device discovery resource configuration parameter of the second access node, an indication. The second resource configuration of the device discovery resource.

上述方案中，该方法还包括： In the above solution, the method further includes:

所述第二资源配置用于指示所述第二接入节点下属小区的设备发现资源的配置； The second resource is configured to indicate a configuration of a device discovery resource of a cell of the second access node;

所述第一接入节点配置用于指示自身下属小区设备发现资源的第三资源配置； The first access node is configured to indicate a third resource configuration of the resource discovery resources of the subordinate cell device;

所述第一接入节点将所述第二资源配置和所述第三资源配置发送给用户设备。 The first access node sends the second resource configuration and the third resource configuration to a user equipment.

上述方案中，所述设备发现资源为时域资源； In the above solution, the device discovery resource is a time domain resource;

所述上层配置参数通过指示逻辑帧和 /或逻辑子帧位置的方式指示所述时域资源，所述第一接入节点根据所述逻辑帧和 /或逻辑子帧与下属小区无线帧和 /或无线子帧的定时偏差，生成用于指示所述时域资源的配置参数，并通过第二资源配置将所述配置参数发送给用户设备；或者， The upper layer configuration parameter indicates the time domain resource by indicating a logical frame and/or a logical subframe position, and the first access node according to the logical frame and/or the logical subframe and the subordinate cell radio frame and/or Or the timing offset of the wireless subframe, generating a configuration parameter for indicating the time domain resource, and sending the configuration parameter to the user equipment by using the second resource configuration; or

所述上层配置参数通过指示无线帧和 /或无线子帧位置的方式指示所述时域资源，所述第一接入节点根据所述无线帧和 /或无线子帧位置，生成用于指示所述时域资源的配置参数，并通过第二资源配置将所述配置参数发送给用户设备。 The upper layer configuration parameter indicates the time domain resource by indicating a radio frame and/or a radio subframe position, and the first access node generates, according to the radio frame and/or the radio subframe position, an indication Determining configuration parameters of the time domain resource, and sending the configuration parameter by using the second resource configuration Send to user equipment.

所述第二接入节点的设备发现资源配置参数通过指示无线帧和 /或无线子帧位置的方式指示所述时域资源；所述第一接入节点根据自身下属小区的无线帧和 /或无线子帧定时与所述第二接入节点下属小区的无线帧和 /或无线子帧定时的偏差，生成用于指示所述时域资源的配置参数，并通过第二资源配置将所述配置参数发送给用户设备；或者， The device discovery resource configuration parameter of the second access node indicates the time domain resource by indicating a radio frame and/or a radio subframe position; the first access node according to a radio frame of its own subordinate cell and/or a deviation between a radio subframe timing and a radio frame and/or a radio subframe timing of a cell of the second access node, generating a configuration parameter for indicating the time domain resource, and configuring the configuration by using a second resource configuration The parameter is sent to the user equipment; or,

所述第二接入节点的设备发现资源配置参数通过指示无线帧和 /或无线子帧位置的方式指示所述时域资源；所述第一接入节点根据所述无线帧和 / 或无线子帧位置生成用于指示所述时域资源的配置参数，并通过第二资源配置将所述配置参数发送给用户设备。 The device discovery resource configuration parameter of the second access node indicates the time domain resource by indicating a radio frame and/or a radio subframe position; the first access node is configured according to the radio frame and/or the wireless sub- The frame location generates a configuration parameter for indicating the time domain resource, and sends the configuration parameter to the user equipment by using the second resource configuration.

上述方案中，所述第三资源配置中包括用于指示所述第一接入节点下属小区的设备发现时域资源的配置参数，所述配置参数通过指示无线帧和 / 或无线子帧位置的方式指示所述时域资源。 In the above solution, the third resource configuration includes a configuration parameter for indicating a device discovery time domain resource of the cell of the first access node, where the configuration parameter indicates a radio frame and/or a radio subframe position. The mode indicates the time domain resource.

上述方案中，所述第一资源配置中还包括设备发现的频域资源配置参数； In the above solution, the first resource configuration further includes a frequency domain resource configuration parameter discovered by the device;

所述频域资源配置参数通过指示所分配的频域资源块和 /或载波索引的方式指示设备发现频域资源，所述设备发现频域资源用于用户设备进行设备到设备通信的设备发现。 The frequency domain resource configuration parameter indicates that the device discovers the frequency domain resource by indicating the allocated frequency domain resource block and/or the carrier index, and the device discovers that the frequency domain resource is used by the user equipment to perform device-to-device communication device discovery.

上述方案中，所述第三资源配置包括频域资源配置参数，所述频域资源配置参数通过指示所分配的频域资源块和 /或载波索引的方式指示设备发现频域资源，所述设备发现频域资源用于用户设备进行设备到设备通信的设备发现。 In the foregoing solution, the third resource configuration includes a frequency domain resource configuration parameter, where the frequency domain resource configuration parameter indicates, by indicating the allocated frequency domain resource block and/or the carrier index, the device discovers the frequency domain resource, where the device The discovery of frequency domain resources for device discovery by user equipment for device-to-device communication.

上述方案中，所述第二接入节点为具有以下特征至少之一的接入节点：与所述第一接入节点同属一个发现区域的主接入节点；与所述第一接入节点相邻的接入节点； In the foregoing solution, the second access node is an access node that has at least one of the following features: a primary access node that belongs to a discovery area in the same manner as the first access node; An access node adjacent to the first access node;

与所述第一接入节点间存在通信链路的接入节点； An access node having a communication link with the first access node;

配置有设备发现资源的接入节点。 An access node configured with device discovery resources.

本发明实施例提供的一种设备发现装置，该装置包括：第一通信模块、无线资源配置模块、第二通信模块；其中， A device discovery device provided by an embodiment of the present invention includes: a first communication module, a radio resource configuration module, and a second communication module;

所述第一通信模块，配置为接收设备发现第一资源配置； The first communication module is configured to receive, by the device, the first resource configuration;

所述无线资源配置模块，配置为根据所述第一资源配置生成用于向用户设备指示设备发现资源的第二资源配置； The radio resource configuration module is configured to generate, according to the first resource configuration, a second resource configuration for indicating a device discovery resource to the user equipment;

所述第二通信模块，配置为将所述无线配置模块生成的第二资源配置发送给用户设备； The second communication module is configured to send the second resource configuration generated by the wireless configuration module to the user equipment;

所述设备发现资源用于用户设备进行设备到设备通信的设备发现。上述方案中，所述第一通信模块，配置为接收上层网络实体发送的第一资源配置，所述第一资源配置包括设备发现资源的上层配置参数； The device discovery resource is used by the user equipment for device discovery of device to device communication. In the above solution, the first communication module is configured to receive a first resource configuration sent by an upper layer network entity, where the first resource configuration includes an upper layer configuration parameter of the device discovery resource;

相应的，所述无线资源配置模块，配置为根据所述上层配置参数和下属小区的无线帧和 /或无线子帧定时生成用于指示设备发现资源的第二资源配置； Correspondingly, the radio resource configuration module is configured to generate, according to the upper layer configuration parameter and the radio frame and/or the radio subframe timing of the subordinate cell, a second resource configuration for instructing the device to discover the resource;

或者，所述第一通信模块，配置为接收上层网络实体发送的第一资源配置，所述第一资源配置包括设备发现资源的上层配置参数； Or the first communication module is configured to receive a first resource configuration sent by an upper layer network entity, where the first resource configuration includes an upper layer configuration parameter of the device discovery resource;

相应的，所述无线资源配置模块，配置为根据所述上层配置参数生成用于指示设备发现资源的第二资源配置。 Correspondingly, the radio resource configuration module is configured to generate, according to the upper layer configuration parameter, a second resource configuration for instructing the device to discover resources.

上述方案中，所述第一通信模块，配置为接收第二接入节点发送的第一资源配置，所述第一资源配置包括所述第二接入节点的设备发现资源配置参数； In the above solution, the first communication module is configured to receive a first resource configuration sent by the second access node, where the first resource configuration includes a device discovery resource configuration parameter of the second access node;

相应的，所述无线资源配置模块，配置为根据所述第二接入节点的设备发现资源配置参数和下属小区的无线帧和 /或无线子帧定时生成用于指示设备发现资源的第二资源配置； Correspondingly, the radio resource configuration module is configured to generate, according to the device discovery resource configuration parameter of the second access node, a radio frame and/or a radio subframe timing of the subordinate cell, for indicating The second resource configuration of the device discovery resource;

或者，所述第一通信模块，配置为接收第二接入节点发送的第一资源配置，所述第一资源配置包括所述第二接入节点的设备发现资源配置参数；相应的，所述无线资源配置模块，配置为根据所述第二接入节点的设备发现资源配置参数生成用于指示设备发现资源的第二资源配置。 Or the first communication module is configured to receive a first resource configuration that is sent by the second access node, where the first resource configuration includes a device discovery resource configuration parameter of the second access node; The radio resource configuration module is configured to generate a second resource configuration for instructing the device to discover the resource according to the device discovery resource configuration parameter of the second access node.

上述方案中，所述第二资源配置用于指示所述第二接入节点下属小区的设备发现资源的配置； In the above solution, the second resource is configured to indicate a configuration of a device discovery resource of a cell of the second access node;

所述无线资源配置模块，还配置用于指示自身下属小区设备发现资源的第三资源配置； The radio resource configuration module is further configured to indicate a third resource configuration for discovering resources of the subordinate cell device;

所述第二通信模块，配置为将所述第二资源配置和所述第三资源配置发送给用户设备。 The second communication module is configured to send the second resource configuration and the third resource configuration to the user equipment.

所述上层配置参数通过指示逻辑帧和 /或逻辑子帧位置的方式指示所述时域资源； The upper layer configuration parameter indicates the time domain resource by indicating a logical frame and/or a logical subframe position;

所述无线资源配置模块，配置为根据所述逻辑帧和 /或逻辑子帧与下属小区无线帧和 /或无线子帧的定时偏差，生成用于指示所述时域资源的配置参数； The radio resource configuration module is configured to generate a configuration parameter for indicating the time domain resource according to a timing deviation between the logical frame and/or the logical sub-frame and the subordinate cell radio frame and/or the radio sub-frame;

相应的，所述第二通信模块，配置为通过第二资源配置将所述配置参数发送给用户设备； Correspondingly, the second communication module is configured to send the configuration parameter to the user equipment by using the second resource configuration;

或者， Or,

所述上层配置参数通过指示无线帧和 /或无线子帧位置的方式指示所述时域资源； The upper layer configuration parameter indicates the time domain resource by indicating a location of a radio frame and/or a radio subframe;

所述无线资源配置模块，配置为根据所述无线帧和 /或无线子帧位置，生成用于指示所述时域资源的配置参数； The radio resource configuration module is configured to generate, according to the radio frame and/or the location of the radio subframe, a configuration parameter used to indicate the time domain resource;

相应的，所述第二通信模块，配置为通过第二资源配置将所述配置参数发送给用户设备。 Correspondingly, the second communication module is configured to configure the configuration parameter by using a second resource configuration The number is sent to the user device.

所述第二接入节点的设备发现资源配置参数通过指示无线帧和 /或无线子帧位置的方式指示所述时域资源； The device discovery resource configuration parameter of the second access node indicates the time domain resource by indicating a location of a radio frame and/or a radio subframe;

所述无线资源配置模块，配置为根据自身下属小区的无线帧和 /或无线子帧定时与所述第二接入节点下属小区的无线帧和 /或无线子帧定时的偏差，生成用于指示所述时域资源的配置参数； The radio resource configuration module is configured to generate, according to a deviation between a radio frame and/or a radio subframe timing of the subordinate cell and a radio frame and/or a radio subframe timing of the subordinate cell of the second access node, Configuration parameters of the time domain resource;

或者， Or,

所述无线资源配置模块，配置为根据所述无线帧和 /或无线子帧位置生成用于指示所述时域资源的配置参数； The radio resource configuration module is configured to generate a configuration parameter for indicating the time domain resource according to the radio frame and/or the radio subframe position;

相应的，所述第二通信模块，配置为通过第二资源配置将所述配置参数发送给用户设备。 Correspondingly, the second communication module is configured to send the configuration parameter to the user equipment by using the second resource configuration.

本发明实施例还提供的一种设备发现装置，该装置包括：第一资源配置模块和第三通信模块；其中， The device of the present invention further provides a device discovery device, where the device includes: a first resource configuration module and a third communication module;

所述第一资源配置模块，配置为配置设备发现资源并生成用于指示所述设备发现资源的第一资源配置； The first resource configuration module is configured to configure a device discovery resource and generate a first resource configuration for indicating that the device discovers a resource;

所述第三通信模块，配置为将所述第一资源配置模块配置的第一资源配置发送给第一接入节点。 The third communication module is configured to send the first resource configuration configured by the first resource configuration module to the first access node.

上述方案中，所述第一资源配置模块，配置为生成包括设备发现资源的上层配置参数的第一资源配置；或者，配置为生成包括第二接入节点的设备发现资源配置参数的第一资源配置。本发明实施例提供了一种设备发现方法和装置，接入节点接收设备发现第一资源配置，根据所述设备发现第一资源配置生成用于向 UE指示设备发现资源的第二资源配置，并将所述第二资源配置发送给 UE; 所述设备发现资源用于 UE进行设备到设备通信的设备发现；如此，不但能够实现小区内的设备发现，也可实现驻留于不同小区 UE的相互发现，在解决蜂窝通信 ***中设备到设备通信的设备发现问题的同时，显著提高设备到设备通信应用的广泛性。附图说明 In the above solution, the first resource configuration module is configured to generate a first resource configuration that includes an upper layer configuration parameter of the device discovery resource, or is configured to generate a first resource that includes a device discovery resource configuration parameter of the second access node. Configuration. An embodiment of the present invention provides a device discovery method and apparatus, where an access node receiving device discovers a first resource configuration, and generates a second resource configuration for indicating a device discovery resource to the UE according to the device discovery first resource configuration, and Transmitting the second resource configuration to the UE; the device discovery resource is used for device discovery by the UE for device-to-device communication; thus, not only device discovery in the cell but also mutual UE camping in different cells can be implemented. It has been found that while solving the problem of device-to-device communication in a cellular communication system, the device-to-device communication application is significantly improved. DRAWINGS

图 1为现有技术中无线帧的结构示意图； 1 is a schematic structural diagram of a radio frame in the prior art;

图 2为现有技术中频域资源的结构示意图； 2 is a schematic structural diagram of a frequency domain resource in the prior art;

图 3为现有技术中蜂窝无线通信***的网络部署示意图； 3 is a schematic diagram of network deployment of a cellular wireless communication system in the prior art;

图 4为具有 D2D通信可能的用户设备驻留于不同小区的示意图；图 5为本发明实施例提供的设备发现方法的流程示意图； 4 is a schematic diagram of a user equipment with possible D2D communication camping on different cells; FIG. 5 is a schematic flowchart of a device discovery method according to an embodiment of the present invention;

图 6为本发明实施例提供的具有上层网络实体的网络部署示意图；图 7 为本发明实施例提供的接入节点间实现设备发现的网络部署示意图； FIG. 6 is a schematic diagram of network deployment with an upper layer network entity according to an embodiment of the present invention; FIG. 7 is a schematic diagram of network deployment for implementing device discovery between access nodes according to an embodiment of the present invention;

图 8为本发明实施例提供的时域资源配置示意图； FIG. 8 is a schematic diagram of time domain resource configuration according to an embodiment of the present disclosure;

图 9为本发明实施例提供的第一种设备发现装置的结构示意图；图 10为本发明实施例提供的第二种设备发现装置的结构示意图。具体实施方式 FIG. 9 is a schematic structural diagram of a first device discovery device according to an embodiment of the present invention; FIG. 10 is a schematic structural diagram of a second device discovery device according to an embodiment of the present invention. detailed description

常见的蜂窝无线通信***可以基于码分多址（CDMA， Code Division Multiplexing Access ) 技术、频分多址 ( FDMA， Frequency Division Multiplexing Access )技术、正交频分多址 ( OFDMA, Orthogonal-FDMA ) 技术、单载波频分多址（ SC-FDMA, Single Carrier-FDMA )技术等，例如， 3 GPP ( 3rd Generation Partnership Project ) 长期演进 ( LTE , Long Term Evolution ) /高级长期演进（ LTE-A， LTE- Advanced )蜂窝通信***下行链路（或称为前向链路）基于 OFDMA技术，上行链路（或称为反向链路）基于 SC-FDMA技术。 Common cellular wireless communication systems can be based on Code Division Multiplexing (CDMA), Frequency Division Multiplexing (FDMA), and Orthogonal-FDMA (OFDM) technology. Single-carrier frequency division multiple access (SC-FDMA, Single Carrier-FDMA) technology, etc., for example, 3 GPP ( 3rd Generation Partnership Project ) Long Term Evolution ( LTE , Long Term Evolution ) / Advanced Long Term Evolution ( LTE-A, LTE-Advanced ) cellular communication system downlink (or forward link) based on OFDMA technology, uplink The link (or reverse link) is based on SC-FDMA technology.

在基于 OFDMA/SC-FDMA技术的***中，用于通信的无线资源（ Radio Radio resources for communication in systems based on OFDMA/SC-FDMA technology (Radio

Resource )是时-频两维的形式。例如，对于 LTE/LTE-A***来说，上行和下行链路的通信资源在时间方向上都是以无线帧（radio frame )为单位划分，如图 1 所示，每个无线帧长度为 10ms，包含 10 个长度为 1ms 的子帧 ( sub-frame ), 每个子帧包括长度为 0.5ms的两个时隙（ slot )。根据循环前缀（ CP， Cyclic Prefix )的配置不同，每个时隙可以包括 6个或 7个 OFDM 或 SC-FDM符号。 Resource ) is a two-dimensional form of time-frequency. For example, for an LTE/LTE-A system, uplink and downlink communication resources are divided in units of radio frames in the time direction. As shown in FIG. 1, each radio frame has a length of 10 ms. Contains 10 sub-frames of length 1 ms, each of which includes two slots (slots) of length 0.5 ms. Depending on the configuration of the cyclic prefix (CP, Cyclic Prefix), each time slot can include 6 or 7 OFDM or SC-FDM symbols.

在频率方向，资源以子载波（ subcarrier )为单位划分。在具体通信中，频域资源分配的最小单位是资源块（RB， Resource Block ), 对应物理资源的一个物理资源块（PRB， Physical RB ), 如图 2所示，一个 PRB在频域包含 12个子载波（ sub-carrier ),对应于时域的一个时隙。每个 OFDM/SC-FDM 符号上对应一个子载波的资源称为资源单元（RE， Resource Element, 或称为资源元素）。 In the frequency direction, resources are divided into subcarriers. In a specific communication, the minimum unit of the frequency domain resource allocation is a resource block (RB), and one physical resource block (PRB, Physical RB) corresponding to the physical resource. As shown in FIG. 2, one PRB includes 12 in the frequency domain. Sub-carriers, corresponding to one time slot of the time domain. A resource corresponding to one subcarrier on each OFDM/SC-FDM symbol is called a resource element (RE, Resource Element, or resource element).

在 LTE/LTE-A蜂窝通信中， UE通过检测同步信号（ SS， Synchronization Signal )发现 LTE/LTE-A网络，并获得与接入节点的下行频率和时间同步。并且，由于同步信号携带有物理小区标识（PCID， Physical Cell ID ), 检测同步信号也意味着 UE发现 LTE/LTE-A小区。 In the LTE/LTE-A cellular communication, the UE discovers the LTE/LTE-A network by detecting a synchronization signal (SS, Synchronization Signal), and obtains downlink frequency and time synchronization with the access node. Moreover, since the synchronization signal carries a Physical Cell ID (PCID), detecting the synchronization signal also means that the UE discovers the LTE/LTE-A cell.

对于上行链路，当 UE有上行数据传输时，需要发起随机接入（RA， Random Access ) 进行上行同步，并且向网络侧发起建立无线资源控制 ( RRC, Radio Resource Control )连接，也即从 RRC空闲（ Idle )状态进入 RRC连接 ( Connected )状态。在随机接入时， UE需要发送随机接入前导 ( preamble )，网络侧通过在特定的时频资源中检测随机接入前导，实现对 UE的识别和上行链路的同步。 For the uplink, when the UE has uplink data transmission, it needs to initiate random access (RA, Random Access) for uplink synchronization, and initiates establishment of a radio resource control (RRC) connection to the network side, that is, from the RRC. The idle (Idle) state enters the RRC Connected state. In random access, the UE needs to send a random access preamble. (preamble), the network side implements identification of the UE and synchronization of the uplink by detecting a random access preamble in a specific time-frequency resource.

图 3所示为蜂窝无线通信***的网络部署示意图，图 3 中所示的蜂窝无线通信***可以是 3GPP LTE/LTE-A***，或者是基于其它的蜂窝无线通信技术的***。在蜂窝无线通信***的接入网中，网络设备一般包括一定数量的基站（base station, 或者称为节点 B， Node B, 或者演进的节点 B， evolved Node B， eNB，或者增强的节点 B， enhanced Node B， eNB )，以及其它的网络实体（network entity )。在 3GPP***中，也可以将其统称为演进的通用陆地无线接入网络（ E-UTRAN, Evolved Universal Terrestrial Radio Access Network )₀ 这里，所述基站也包括接入网络中的低功率节点（LPN， Low Power Node ), 例如毫微微小区或家庭基站，比如是 pico、或 Relay、或 femto、或 HeNB ( Home eNB )等。为描述简单并避免歧义，在本文中将上述的基站及低功率节点统称为接入节点。 3 is a schematic diagram of network deployment of a cellular wireless communication system. The cellular wireless communication system shown in FIG. 3 may be a 3GPP LTE/LTE-A system, or a system based on other cellular wireless communication technologies. In an access network of a cellular radio communication system, a network device generally includes a certain number of base stations (also referred to as Node Bs, Node Bs, or evolved Node Bs, evolved Node Bs, eNBs, or enhanced Node Bs). Enhanced Node B, eNB ), and other network entities. In the 3GPP system, it may be referred to as an evolved universal terrestrial radio access network of (E-UTRAN, Evolved Universal Terrestrial Radio Access Network) 0 Here, the base station also includes a low power access network node (the LPN, Low Power Node), such as a femto cell or a home base station, such as pico, or Relay, or femto, or HeNB (Home eNB). For simplicity of description and avoidance of ambiguity, the above-mentioned base stations and low power nodes are collectively referred to herein as access nodes.

图 3 中只示出了 3个接入节点，各接入节点提供一定的无线信号覆盖范围，在覆盖范围内的 UE可以与所属接入节点进行无线通信，一个接入节点的无线信号覆盖区域可以基于设定的准则被划分为一个或者多个小区 ( cell )或扇区（sector ), 例如可以是三个小区，每个小区的无线通信可以有独立的子***进行处理，例如独立的射频单元；对于低功率节点所覆盖的小区，由于覆盖面积远小于传统接入节点所覆盖的小区，因此也可将低功率节点所覆盖的小区称为小小区（ small cell )。 Only three access nodes are shown in Figure 3. Each access node provides a certain wireless signal coverage. The UE within the coverage can communicate wirelessly with the access node, and the wireless signal coverage area of an access node. It may be divided into one or more cells (sectors) or sectors based on the set criteria, for example, may be three cells, and each cell's wireless communication may be processed by an independent subsystem, such as an independent radio frequency. For a cell covered by a low-power node, a cell covered by a low-power node may also be referred to as a small cell because the coverage area is much smaller than that of a cell covered by a conventional access node.

在蜂窝通信***中进行 D2D通信的设备发现时，由于设备发现使用蜂窝网络的无线资源，设备发现过程需要网络侧的辅助，通过网络侧的辅助对设备发现进行管理，避免设备发现对蜂窝通信产生干扰，并且通过网络侧的辅助能够提高设备发现的效率。例如可以由基站分配用于设备发现的无线资源， D2D通信的 UE在所分配的无线资源中进行设备发现。不过，在 LTE/LTE-A***中，不同接入节点的下属小区的无线资源可能是不同步的，这种不同步可能会导致不同接入节点的下属小区的设备发现无线资源不同，这样当 UE属于上述不同接入节点的下属小区时，即使 UE相距很近，可能也无法实现设备发现，如图 4所示的 UE1和 UE2。换句话说，上述的网络辅助的设备发现方法只能实现小区内或者同一个接入节点下属小区的用户设备进行设备发现，即设备发现将受制于接入节点或者小区的覆盖范围。 In the case of device discovery for D2D communication in a cellular communication system, since the device discovers the use of the radio resources of the cellular network, the device discovery process requires the assistance of the network side, and the device discovery is managed through the assistance of the network side to prevent the device discovery from generating the cellular communication. Interference, and assistance through the network side can improve the efficiency of device discovery. For example, a radio resource for device discovery may be allocated by a base station, and a UE for D2D communication performs device discovery in the allocated radio resource. but, In the LTE/LTE-A system, the radio resources of the subordinate cells of different access nodes may be unsynchronized. The unsynchronization may cause the devices of the subordinate cells of different access nodes to discover different radio resources, so that when the UE belongs to In the case of the subordinate cells of the different access nodes, the device discovery may not be implemented even if the UEs are close to each other, as shown in FIG. 4, UE1 and UE2. In other words, the above-mentioned network-assisted device discovery method can only implement device discovery in a cell or a user equipment of a subordinate cell of the same access node, that is, device discovery will be subject to the coverage of the access node or the cell.

按照目前的蜂窝网络发展，小小区（small cell )可能会成为 LTE/LTE-A 网络发展的一个普遍方向。在小小区场景下，小区的覆盖范围将会非常小 (若干百米甚至几十米）；因此，如果 D2D设备发现的范围或距离受制于接入节点或者小区的覆盖范围，无疑会使得 D2D通信的应用非常受限。 According to the current cellular network development, small cells may become a general direction for the development of LTE/LTE-A networks. In a small cell scenario, the coverage of the cell will be very small (several hundred meters or even tens of meters); therefore, if the range or distance discovered by the D2D device is subject to the coverage of the access node or the cell, the D2D communication will undoubtedly be made. The application is very limited.

基于上述考虑，本发明实施例提供了一种设备发现方法，基本思想包括：第一接入节点接收设备发现第一资源配置，根据所述设备发现第一资源配置生成用于向 UE指示设备发现资源的第二资源配置，并将所述第二资源配置发送给 UE; 所述设备发现资源用于 UE进行设备到设备通信的设备发现。 Based on the above considerations, an embodiment of the present invention provides a device discovery method. The basic idea includes: a first access node receiving device discovering a first resource configuration, and generating, according to the device, a first resource configuration, to indicate to the UE a second resource configuration of the resource, and sending the second resource configuration to the UE; the device discovery resource is used by the UE to perform device-to-device communication device discovery.

下面通过附图及具体实施例对本发明实施例做进一步的详细说明。本发明实施例实现一种设备发现方法，如图 5 所示，该方法包括以下几个步骤： The embodiments of the present invention are further described in detail below with reference to the accompanying drawings and specific embodiments. An embodiment of the present invention implements a device discovery method. As shown in FIG. 5, the method includes the following steps:

步骤 101 : 第一接入节点接收设备发现第一资源配置； Step 101: The first access node receiving device discovers the first resource configuration.

本步骤可以是，如图 6所示，所述第一资源配置由上层网络实体（Upper Layer Network Entity/Element )在一个发现区域内发送，所述第一资源配置包括设备发现资源的上层配置参数，所述上层网络实体可以是基站控制器 ( BSC ), 移动性管理实体（Mobility Management Entity, MME )、分组网关（ Packet Gateway, PGW )、服务网关（ Service Gateway, SGW )、多小区 /多播协调功能实体（Multi-cell/Multicast Coordination Entity, MCE ), 用于 D2D的邻近服务服务器（ProSe Server )或移动交换设备等处于所述第一接入节点上层的设备； In this step, as shown in FIG. 6, the first resource configuration is sent by an upper layer network entity (Element) in a discovery area, and the first resource configuration includes an upper layer configuration parameter of the device discovery resource. The upper layer network entity may be a base station controller (BSC), a Mobility Management Entity (MME), a Packet Gateway (PGW), a Service Gateway (SGW), and a multi-cell. a Multi-cell/Multicast Coordination Entity (MCE), a device for a D2D ProSe Server or a mobile switching device, which is located above the first access node;

本步骤也可以是，如图 7所示，所述第一资源配置由第二接入节点发送，即 eNB3作为第二接入节点发送第一资源配置给 eNB4，所述第一资源配置包括所述第二接入节点或所述第二接入节点下属小区的设备发现资源配置参数； In this step, as shown in FIG. 7, the first resource configuration is sent by the second access node, that is, the eNB3 sends the first resource configuration to the eNB4 as the second access node, where the first resource configuration includes the a device discovery resource configuration parameter of a second access node or a cell of the second access node;

所述设备发现资源可以是时域资源； The device discovery resource may be a time domain resource;

所述上层配置参数通过指示逻辑帧和 /或逻辑子帧位置的方式指示所述时域资源， "逻辑" 此处只是用于与无线帧或子帧编号区别，表示该上层配置参数所指示的帧或子帧编号并非无线帧或子帧编号；或者， The upper layer configuration parameter indicates the time domain resource by indicating a logical frame and/or a logical subframe position, and the “logic” is only used to distinguish from the wireless frame or the subframe number, indicating that the upper layer configuration parameter indicates The frame or subframe number is not a radio frame or subframe number; or,

所述上层配置参数通过指示无线帧和 /或无线子帧位置的方式指示所述时域资源。 The upper layer configuration parameter indicates the time domain resource by indicating a location of a radio frame and/or a radio subframe.

上述发现区域内可以有 N个接入节点， N为大于等于 1的整数；所述第二接入节点为具有以下特征至少之一的接入节点： There may be N access nodes in the discovery area, where N is an integer greater than or equal to 1; the second access node is an access node having at least one of the following features:

与所述第一接入节点同属一个发现区域的主接入节点、与所述第一接入节点相邻的接入节点、与所述第一接入节点间存在通信链路的接入节点、配置有设备发现资源的接入节点；所述通信链路可以是无线通信、或者 X2 口通信、或者光纤连接的通信。 a primary access node that belongs to the same discovery area as the first access node, an access node that is adjacent to the first access node, and an access node that has a communication link with the first access node. The access node configured with the device discovery resource; the communication link may be wireless communication, or X2 port communication, or fiber-optic connection communication.

所述上层配置参数通过指示逻辑帧和 /或逻辑子帧位置的方式指示所述时域资源、或所述上层配置参数通过指示无线帧和 /或无线子帧位置的方式指示所述时域资源，具体为：设置设备发现逻辑帧或无线帧的分配周期（Period )和分配偏移（Offset ), 当逻辑帧或无线帧的***帧号（ SFN， System Frame Number )满足 SFN mod Period=Offset时，表示逻辑帧或无线帧被配置为设备发现逻辑帧或无线帧，即所述逻辑帧或无线帧中有时域资源，在所述逻辑帧或无线帧内以位图的形式表示时域资源所在的逻辑子帧或无线子帧；这里，所述分配周期可以是可配置的，如可配置为 1、或 2、或 4、或 8、或 16、或 32、或 64，等等，所述分配偏移可以是可配置的，如可配置为 0、或 1、或 2、或 3、或 4、或 5、或 6、或 7，等等；或者，所述分配周期可以是约定的，如约定为 16、或 32，所述分配偏移可以是约定的，如约定为 0-16、或 0-32，等等；所述分配周期和所述分配偏移的取值可以取***帧号编号范围内的任意整数值； The upper layer configuration parameter indicates, by indicating a logical frame and/or a logical subframe position, the time domain resource, or the upper layer configuration parameter indicates the time domain resource by indicating a wireless frame and/or a wireless subframe position. , Specifically: Set the device discovery logical frame or radio frame allocation period (Period) and allocation offset (Offset). When the system frame number (SFN, System Frame Number) of the logical frame or radio frame satisfies SFN mod Period=Offset, it indicates a logical frame. Or the radio frame is configured as a device discovery logical frame or a radio frame, that is, a time domain resource in the logical frame or the radio frame, and a logical subframe in which the time domain resource is represented in the form of a bitmap in the logical frame or the radio frame. Or a wireless subframe; where the allocation period may be configurable, such as configurable as 1, or 2, or 4, or 8, 16, or 32, or 64, etc., the allocation offset may Is configurable, as configurable as 0, 1, or 2, or 3, or 4, or 5, or 6, or 7, etc.; or, the allocation period can be agreed, such as the appointment of 16 Or, 32, the allocation offset may be agreed, as the agreement is 0-16, or 0-32, etc.; the allocation period and the allocation offset may take the system frame number number range Any integer value;

在所述逻辑帧或无线帧内以位图的形式表示时域资源所在的逻辑子帧或无线子帧，如可以以 m比特的位图表示一个无线帧内时域资源所在的子帧， m为一个无线帧内能够被配置为时域资源所在的子帧的最大子帧数，如取值为 6或 10; 或者也可以以多个无线帧为基本单位配置时域资源所在的子帧，如以 2个或 4个或 8个或 32个无线帧为基本单位，这样，位图的大小分别对应为 2m、 4m、 8m、 32m比特， m含义同前。同样需要说明的是，这里 2、 4、 8、 32均是举例，并不构成限制； A logical sub-frame or a radio sub-frame in which the time domain resource is located in the form of a bitmap in the logical frame or the radio frame, for example, a m-bit bitmap may be used to represent a sub-frame in which the time domain resource in the radio frame is located, m The maximum number of subframes in a radio frame that can be configured as a time domain resource, such as a value of 6 or 10; or a subframe in which a time domain resource is located in a plurality of radio frames. For example, two or four or eight or 32 radio frames are used as the basic unit. Thus, the size of the bitmap corresponds to 2m, 4m, 8m, and 32m bits, respectively, and m has the same meaning as before. It should also be noted that 2, 4, 8, and 32 are examples and do not constitute a limitation;

或者，通过只指示子帧号的方式确定时域资源的位置，例如，可以设置设备发现子帧的分配周期和子帧分配偏移，当逻辑子帧或无线子帧的子帧号（ SN， Subframe Number )满足（ SFN*10+SN ) mod Period=Offset时，表示该逻辑子帧或无线子帧被配置为设备发现子帧，即所述子帧中包括有设备发现时域资源； Alternatively, the location of the time domain resource is determined by indicating only the subframe number. For example, the allocation period of the device discovery subframe and the subframe allocation offset may be set, when the subframe number of the logical subframe or the wireless subframe (SN, Subframe) When the number of the mod period=Offset is satisfied, the logical sub-frame or the radio sub-frame is configured as a device discovery sub-frame, that is, the sub-frame includes a device discovery time domain resource;

或者，可以通过只指示***帧号的方式确定时域资源的位置；所述设置设备发现无线帧的分配周期和分配偏移可以为：根据各接入节点或各接入节点所属小区的空口无线帧 /子帧的编号的偏差，设置设备发现无线帧的分配周期和分配偏移，以使不同接入节点所属小区所配置的设备发现时域资源在空口是同步的；例如，以图 6为例，上层网络实体知道 eNBl和 eNB2的空口帧的编号偏差（offset ) 为 1无线帧 +4子帧，如图 8所示，上层网络实体需要配置的时域资源为每 4个无线帧有 1个子帧用于设备发现，上层网络实体设置 eNBl的设备发现无线帧的分配周期 Period=4，设备发现无线帧的分配偏移 Offset=2，位图为 10比特位图，取值为 0001000000，设置 eNB2的设备发现无线帧的分配周期 Period=4，设备发现无线帧的分配偏移 Offset=0，位图为 10 比特位图，取值为所述设置设备发现逻辑帧的分配周期和分配偏移可以为： Alternatively, the location of the time domain resource may be determined by indicating only the system frame number; the setting device may find that the allocation period and the allocation offset of the radio frame may be: According to the deviation of the number of the air interface radio frame/subframe of the cell to which the access node or each access node belongs, set the device to discover the allocation period and the allocation offset of the radio frame, so that the device configured by the cell to which the different access node belongs is found. The time domain resources are synchronized in the air interface; for example, in FIG. 6, the upper layer network entity knows that the number offset (offset) of the air interface frames of eNB1 and eNB2 is 1 radio frame + 4 subframes, as shown in FIG. 8, the upper layer network The time domain resource to be configured by the entity is 1 subframe for every 4 radio frames for device discovery, and the upper network entity sets the allocation period of the radio frame of the eNB1 to find the allocation period Period=4, and the device finds the allocation offset of the radio frame Offset=2 The bitmap is a 10-bit bitmap with a value of 00000000. The device setting eNB2 finds that the radio frame allocation period is Period=4, the device finds the radio frame allocation offset Offset=0, and the bitmap is a 10-bit bitmap. The allocation period and allocation offset of the logical frame found for the setting device may be:

可以只设置设备发现逻辑帧的分配周期和分配偏移，所述设备发现逻辑帧的分配周期和分配偏移，以逻辑帧 /逻辑子帧编号表示，所述逻辑帧 / 逻辑子帧编号可以采用发现区域内任意一个接入节点的空口无线帧 /子帧编号，也可采用自定义的逻辑帧 /逻辑子帧编号；例如，图 6中的上层网络实体采用 eNB2所属小区的空口无线帧 /子帧编号为逻辑帧 /逻辑子帧编号，并以所述空口无线帧 /子帧编号设置下属 eNB的设备发现无线帧的分配周期和分配偏移，比如：需要配置的时域资源为每 4个无线帧有 1个子帧用于设备发现，则设置设备发现逻辑帧的分配周期 Period=4，设备发现逻辑帧的分配偏移 Offset=0，位图为 10比特位图，取值为 0000000001 ; The allocation period and the allocation offset of the device discovery logical frame may be set, the device discovers the allocation period and the allocation offset of the logical frame, and is represented by a logical frame/logical subframe number, and the logical frame/logical subframe number may be adopted. The air interface radio frame/subframe number of any one of the access nodes in the area may be found, and a custom logical frame/logical subframe number may also be used. For example, the upper layer network entity in FIG. 6 adopts an air interface radio frame/sub-zone of the cell to which the eNB2 belongs. The frame number is a logical frame/logical subframe number, and the allocation period and allocation offset of the radio frame are found by the device of the subordinate eNB by using the air interface radio frame/subframe number, for example, the time domain resource to be configured is every 4 If the radio frame has 1 subframe for device discovery, set the device to find the logical frame allocation period Period=4, the device finds the logical frame allocation offset Offset=0, and the bitmap is a 10-bit bitmap with a value of 0000000001;

本步骤中，所述第一资源配置中还可以包括设备发现的频域资源配置参数； In this step, the first resource configuration may further include a frequency domain resource configuration parameter discovered by the device;

所述频域资源配置参数通过指示频域资源块和 /或载波（Carrier, 或称为分量载波， Component Carrier )索引的方式指示设备发现频域资源，所述设备发现频域资源用于 UE进行设备到设备通信的设备发现；所述通过指示频域资源块的方式确定设备发现频域资源为：可以通过位图（bitmap ) 的方式指示所分配的频域资源块为设备发现资源块；或者，可以通过 LTE蜂窝***中定义的资源分配（RA， Resource Allocation )方式指示所分配的频域资源块为设备发现资源块，所述 RA方式包括： RA方式 0 ( type 0 )或方式 1 ( type 1 )或方式 2 ( type 2 ); 或者，可以预定义设备发现资源块的大小，如 4个资源块、或 6个资源块等，通过使用上层配置信息指示设备发现资源块的起始位置的方式，指示所分配的频域资源块为设备发现资源块，所述起始位置也可以通过位图的方式表示；过指示频域资源配置的索引的方式指示所分配的频域资源块为设备发现资源块，比如，预定义用于设备发现的频域资源配置，每种频域资源配置对应一个索引，在配置设备发现频域资源时，通过指示所分配的频域资源配置的索引指示设备发现资源块，如约定 n个 RB为设备发现的频域资源基本配置单元，假设***带宽或设备发现可用资源块或设备发现可用带宽的大小为 N个资源块，那么可用的设备发现基本配置单元有 N/n向下取整（即The frequency domain resource configuration parameter indicates that the device discovers a frequency domain resource by indicating a frequency domain resource block and/or a carrier (Carrier, or component carrier) index, and the device discovers the frequency domain resource for the UE to perform. Device discovery to device communication; Determining, by means of indicating the frequency domain resource block, that the device discovers the frequency domain resource: the allocated frequency domain resource block may be indicated by a bitmap as a device discovery resource block; or may be defined by the LTE cellular system The resource allocation (RA, Resource Allocation) mode indicates that the allocated frequency domain resource block is a device discovery resource block, and the RA mode includes: RA mode 0 (type 0) or mode 1 (type 1) or mode 2 (type 2) Alternatively, the size of the device discovery resource block, such as 4 resource blocks, or 6 resource blocks, may be predefined, indicating the allocated frequency domain by using the upper layer configuration information to indicate the manner in which the device discovers the starting position of the resource block. The resource block is a device discovery resource block, and the start location may also be represented by a bitmap; the manner of indicating an index of the frequency domain resource configuration indicates that the allocated frequency domain resource block is a device discovery resource block, for example, a predefined For frequency domain resource configuration for device discovery, each frequency domain resource configuration corresponds to an index. When the device is configured to discover frequency domain resources, The index of the allocated frequency domain resource configuration indicates that the device discovers the resource block, for example, the n RBs are the basic configuration unit of the frequency domain resource discovered by the device, and the system bandwidth or the device discovers the available resource block or the device finds that the available bandwidth is N resources. Block, then the available devices find that the basic hive has N/n rounded down (ie

LN/ ）个，可以通过 LN/ ^个基本配置单元所对应的索引指示设备发现资源块，或者通过这 LN 」个基本配置单元所对应的位图指示设备发现资源块。 LN/), the resource block may be indicated by the index corresponding to the LN/^ basic configuration unit, or the resource block may be indicated by the bitmap corresponding to the LN "basic configuration unit."

所述通过指示载波索引的方式指示设备发现频域资源可以为：预先分配设备发现载波的载波索引，所述载波索引是可以约定的，比如：约定最低频的载波为设备发现载波、或约定频域资源配置适用于每个载波或小区；所述第一资源配置中还可以包括用于设备发现的发现信号资源的配置信息，所述发现信号资源可以是序列，所述序列可以是参考信号序列、或者同步信号序列、或者前导序列等，比如： ***中预定义用于设备发现的发现信号资源的集合，取所述集合中的一部分发现信号资源配置给设备发现区域使用； The means for indicating that the device discovers the frequency domain resource by means of the indication of the carrier index may be: pre-allocating the carrier index of the device discovery carrier, where the carrier index may be agreed, for example: the carrier with the lowest frequency is the device discovery carrier, or the agreed frequency The domain resource configuration may be applicable to each carrier or cell. The first resource configuration may further include configuration information of a discovery signal resource used for device discovery, where the discovery signal resource may be a sequence, and the sequence may be a reference signal sequence. Or a synchronization signal sequence, or a preamble sequence, etc., for example, a set of discovery signal resources for device discovery is predefined in the system, and a part of the discovery signal resources in the set are allocated to the device. Current area use;

所述用于设备发现的发现信号资源可以是约定的，比如： ***中预定义用于设备发现的发现信号资源的集合，并约定所述集合中的设备发现信号都可用于 D2D通信的设备发现，即设备发现信号无需再进行配置。 The discovery signal resource used for device discovery may be agreed, for example, a set of discovery signal resources for device discovery is predefined in the system, and device discovery signals in the set are all available for device discovery of D2D communication. , that is, the device discovery signal does not need to be configured.

步骤 102: 第一接入节点根据所述设备发现第一资源配置生成用于向 UE指示设备发现资源的第二资源配置； Step 102: The first access node generates, according to the device discovery first resource configuration, a second resource configuration, configured to indicate, to the UE, a device discovery resource.

本步骤可以是，所述第一接入节点根据上层配置参数和下属小区的无线帧和 /或无线子帧定时生成用于指示设备发现资源的第二资源配置； In this step, the first access node generates a second resource configuration for indicating the device discovery resource according to the upper layer configuration parameter and the wireless frame and/or the wireless subframe timing of the subordinate cell.

或者，所述第一接入节点根据上层配置参数直接生成用于指示设备发现资源的第二资源配置。 Or the first access node directly generates a second resource configuration for instructing the device to discover the resource according to the upper layer configuration parameter.

本步骤也可以是，所述第一接入节点根据第二接入节点的设备发现资源配置参数和下属小区的无线帧和 /或无线子帧定时生成用于指示设备发现资源的第二资源配置； In this step, the first access node may generate a second resource configuration for indicating the device discovery resource according to the device discovery resource configuration parameter of the second access node and the radio frame and/or the radio subframe timing of the subordinate cell. ;

或者，所述第一接入节点根据第二接入节点的设备发现资源配置参数直接生成用于指示设备发现资源的第二资源配置； Or the first access node directly generates, according to the device discovery resource configuration parameter of the second access node, a second resource configuration for indicating that the device discovers the resource;

这里，本步骤还可以是，所述第二资源配置可以只用于指示所述第二接入节点下属小区的设备发现资源的配置；所述第一接入节点还配置用于指示自身下属小区设备发现资源的第三资源配置； Here, the step may be that the second resource configuration may be used only to indicate the configuration of the device discovery resource of the cell of the second access node; the first access node is further configured to indicate the subordinate cell The third resource configuration of the device discovery resource;

所述第三资源配置可包括用于指示所述第一接入节点下属小区的设备发现时域资源的配置参数，所述配置参数通过指示无线帧和 /或无线子帧位置的方式指示所述时域资源。 The third resource configuration may include a configuration parameter for indicating a device discovery time domain resource of the cell of the first access node, the configuration parameter indicating the manner by indicating a radio frame and/or a radio subframe position. Time domain resources.

当所述上层配置参数通过指示逻辑帧和 /或逻辑子帧位置的方式指示所述时域资源时，所述第一接入节点根据所述逻辑帧和 /或逻辑子帧与下属小区无线帧和 /或无线子帧的定时偏差（offset ), 生成用于指示所述时域资源的配置参数，并通过第二资源配置将所述配置参数发送给 UE; 或者，当所述上层配置参数通过指示无线帧和 /或无线子帧位置的方式指示所述时域资源时，所述第一接入节点根据所述无线帧和 /或无线子帧位置，生成用于指示所述时域资源的配置参数，并通过第二资源配置将所述配置参数发送给 UE。 When the upper layer configuration parameter indicates the time domain resource by indicating a logical frame and/or a logical subframe position, the first access node according to the logical frame and/or the logical subframe and the subordinate cell radio frame And a timing offset of the wireless sub-frame, generating a configuration parameter for indicating the time domain resource, and sending the configuration parameter to the UE by using a second resource configuration; or When the upper layer configuration parameter indicates the time domain resource by means of indicating a radio frame and/or a radio subframe position, the first access node generates, according to the radio frame and/or the radio subframe position, And indicating a configuration parameter of the time domain resource, and sending the configuration parameter to the UE by using a second resource configuration.

当所述第二接入节点的设备发现资源配置参数通过指示无线帧和 /或无线子帧位置的方式指示所述时域资源时，所述第一接入节点根据自身下属小区的无线帧和 /或无线子帧定时与所述第二接入节点下属小区的无线帧和 When the device discovery resource configuration parameter of the second access node indicates the time domain resource by indicating a radio frame and/or a radio subframe position, the first access node according to the radio frame of the subordinate cell / or wireless subframe timing and radio frame and cell of the second access node subordinate cell

/或无线子帧定时的偏差（offset ), 生成用于指示所述时域资源的配置参数，并通过第二资源配置将所述配置参数发送给 UE; 或者， Or a deviation of the radio subframe timing (offset), generating a configuration parameter for indicating the time domain resource, and sending the configuration parameter to the UE by using the second resource configuration; or

当所述第二接入节点的设备发现资源配置参数通过指示无线帧和 /或无线子帧位置的方式指示所述时域资源时，所述第一接入节点根据所述无线帧和 /或无线子帧位置生成用于指示所述时域资源的配置参数，并通过第二资源配置将所述配置参数发送给 UE。 When the device discovery resource configuration parameter of the second access node indicates the time domain resource by indicating a radio frame and/or a radio subframe position, the first access node is configured according to the radio frame and/or The wireless subframe position generates a configuration parameter used to indicate the time domain resource, and sends the configuration parameter to the UE by using the second resource configuration.

以上层配置参数通过指示逻辑帧和 /或逻辑子帧位置的方式指示所述时域资源为例，接入节点根据自身下属小区的空口无线帧和 /或无线子帧的编资源的无线帧和 /或无线子帧位置，即根据所述上层配置参数生成用于指示时域无线资源的配置参数，例如指示无线帧和 /或无线子帧位置的配置参数。例如，图 6中的上层网络实体以 eNB2下属小区的空口无线帧和 /或子帧编号为逻辑帧和 /或逻辑子帧编号，并以所述空口无线帧和 /或子帧编号对下属 eNB设置设备发现逻辑帧的分配周期 Period=4，分配偏移 Offset=0，设备发现逻辑子帧位图为 10比特位图，取值为 0000000001 ; 由于 eNB2的空口无线帧 /子帧编号与上层网络实体所配置的逻辑帧 /逻辑子帧编号相同，因此 eNB2获得所述上层配置参数后，生成的空口配置参数与所述上层配置参数的取值相同；由于 eNBl的空口无线帧 /子帧编号与上层网络实体的逻辑帧 / 逻辑子帧编号的偏差为 1无线帧 +4子帧， eNBl根据所述上层配置参数以及所述偏差生成用于表示时域无线资源例如无线帧和 /或无线子帧位置的配置参数，在本例中，生成的时域无线资源配置参数中分配周期为 Period=4，分配偏移为 Offset=2，位图取值为 0001000000; 这里， eNB空口无线帧 /子The above-mentioned layer configuration parameter indicates the time domain resource by way of indicating a logical frame and/or a logical subframe position, and the access node according to the air interface radio frame of the subordinate cell and/or the radio frame of the coding resource of the wireless sub-frame And/or a wireless subframe position, that is, a configuration parameter for indicating a time domain radio resource, such as a configuration parameter indicating a radio frame and/or a radio subframe position, is generated according to the upper layer configuration parameter. For example, the upper layer network entity in FIG. 6 uses the air interface radio frame and/or the subframe number of the cell of the eNB2 as the logical frame and/or the logical subframe number, and pairs the subordinate eNB with the air interface radio frame and/or the subframe number. Set the device discovery logical frame allocation period Period=4, the allocation offset Offset=0, the device discovery logic subframe bitmap is a 10-bit bitmap, and the value is 0000000001; the air interface radio frame/subframe number of the eNB2 and the upper layer network The logical frame/logical subframe number configured by the entity is the same. Therefore, after the eNB2 obtains the upper layer configuration parameter, the generated air interface configuration parameter has the same value as the upper layer configuration parameter. The air interface radio frame/subframe number of the eNB1 is Logical frame of the upper layer network entity / The deviation of the logical subframe number is 1 radio frame + 4 subframes, and the eNB1 generates configuration parameters for indicating time domain radio resources, such as radio frames and/or radio subframe positions, according to the upper layer configuration parameters and the offsets. In the example, the allocation period in the generated time domain radio resource configuration parameter is Period=4, the allocation offset is Offset=2, and the bitmap value is 00000000; where, the eNB air interface radio frame/sub

：编号与上层网络实体的逻辑帧 /子帧 ^ : Logical frame/subframe with number and upper layer network entity ^

给 eNB，比如：指示给 eNBl的偏差为 1无线帧 +4子帧，指示给 eNB2的偏差为 0; 或者，由 eNB通过其它方式获得所述偏差，例如通过 eNB与上层网络实体同步的方式获得所述偏差。 For the eNB, for example, the deviation indicated to the eNB1 is 1 radio frame + 4 subframes, and the deviation to the eNB 2 is 0; or the eNB obtains the deviation by other means, for example, by using the eNB to synchronize with the upper layer network entity. The deviation.

本步骤中，所述第三资源配置也可以包括频域资源配置参数，所述频域资源配置参数通过指示所分配的频域资源块和 /或载波索引的方式指示设备发现频域资源，所述设备发现频域资源用于 UE进行设备到设备通信的设备发现。 In this step, the third resource configuration may also include a frequency domain resource configuration parameter, where the frequency domain resource configuration parameter indicates that the device discovers the frequency domain resource by indicating the allocated frequency domain resource block and/or the carrier index. The device discovers that the frequency domain resource is used for device discovery by the UE for device-to-device communication.

步骤 103: 第一接入节点将所述第二资源配置发送给 UE; Step 103: The first access node sends the second resource configuration to the UE.

这样， UE通过该第二资源配置获得用于设备发现的无线资源配置情况。 In this way, the UE obtains the radio resource configuration for device discovery through the second resource configuration.

本步骤还包括：所述第二资源配置只用于指示所述第二接入节点下属小区的设备发现资源的配置，这样，所述第一接入节点将所述第二资源配置和所述第三资源配置发送给 UE， UE通过该第二资源配置和第三资源配置分别获得其他小区的设备发现无线资源配置和驻留小区的设备发现无线资源配置。 The step of the second resource configuration is only used to indicate the configuration of the device discovery resource of the cell of the second access node, and the first access node configures the second resource and the The third resource configuration is sent to the UE, and the UE obtains the device discovery radio resource configuration of the other cell and the device discovery radio resource configuration of the camped cell by using the second resource configuration and the third resource configuration, respectively.

为了实现上述方法，本发明实施例还提供一种设备发现装置，所述设备发现装置位于第一接入节点内，如图 9所示，该装置包括：第一通信模块 21、无线资源配置模块 22、第二通信模块 23; 其中， In order to implement the foregoing method, the embodiment of the present invention further provides a device discovery device, where the device discovery device is located in a first access node, as shown in FIG. 9, the device includes: a first communication module 21, and a radio resource configuration module. 22. The second communication module 23; wherein

所述第一通信模块 21，可以由第一接入节点的接收器实现，配置为接收设备发现第一资源配置；所述无线资源配置模块 22，可以由第一接入节点的处理器实现，配置为根据所述第一资源配置生成用于向 UE指示设备发现资源的第二资源配置； The first communication module 21 may be implemented by a receiver of the first access node, and configured to receive, by the device, the first resource configuration; The radio resource configuration module 22 may be implemented by a processor of the first access node, configured to generate, according to the first resource configuration, a second resource configuration for indicating a device discovery resource to the UE;

所述第二通信模块 23，可以由第一接入节点的发射器实现，配置为将所述无线配置模块 22生成的第二资源配置发送给 UE; The second communication module 23 may be implemented by a transmitter of the first access node, configured to send the second resource configuration generated by the wireless configuration module 22 to the UE;

所述设备发现资源用于 UE进行设备到设备通信的设备发现。 The device discovery resource is used by the UE for device discovery of device to device communication.

所述第一通信模块 21，配置为接收上层网络实体发送的第一资源配置，所述第一资源配置包括设备发现资源的上层配置参数； The first communication module 21 is configured to receive a first resource configuration sent by an upper layer network entity, where the first resource configuration includes an upper layer configuration parameter of the device discovery resource;

相应的，所述无线资源配置模块 22，配置为才艮据所述上层配置参数和下属小区的无线帧和 /或无线子帧定时生成用于指示设备发现资源的第二资源配置； Correspondingly, the radio resource configuration module 22 is configured to generate, according to the upper layer configuration parameter and the radio frame and/or the radio subframe timing of the subordinate cell, a second resource configuration for indicating the device discovery resource;

或者，所述第一通信模块 21，配置为接收上层网络实体发送的第一资源配置，所述第一资源配置包括设备发现资源的上层配置参数； Or the first communication module 21 is configured to receive a first resource configuration sent by an upper layer network entity, where the first resource configuration includes an upper layer configuration parameter of the device discovery resource;

相应的，所述无线资源配置模块 22，配置为才艮据所述上层配置参数生成用于指示设备发现资源的第二资源配置。 Correspondingly, the radio resource configuration module 22 is configured to generate a second resource configuration for instructing the device to discover resources according to the upper layer configuration parameter.

所述第一通信模块 21，配置为接收第二接入节点发送的第一资源配置，所述第一资源配置包括所述第二接入节点的设备发现资源配置参数； The first communication module 21 is configured to receive a first resource configuration that is sent by the second access node, where the first resource configuration includes a device discovery resource configuration parameter of the second access node;

相应的，所述无线资源配置模块 22，配置为根据所述第二接入节点的设备发现资源配置参数和下属小区的无线帧和 /或无线子帧定时生成用于指示设备发现资源的第二资源配置； Correspondingly, the radio resource configuration module 22 is configured to generate, according to the device discovery resource configuration parameter of the second access node and the radio frame and/or the radio subframe timing of the subordinate cell, a second device for instructing the device to discover the resource. Resource allocation

或者，所述第一通信模块 21，配置为接收第二接入节点发送的第一资源配置，所述第一资源配置包括所述第二接入节点的设备发现资源配置参数； Or the first communication module 21 is configured to receive a first resource configuration sent by the second access node, where the first resource configuration includes a device discovery resource configuration parameter of the second access node;

相应的，所述无线资源配置模块 22，配置为根据所述第二接入节点的设备发现资源配置参数生成用于指示设备发现资源的第二资源配置。所述第二资源配置用于指示所述第二接入节点下属小区的设备发现资源的配置； Correspondingly, the radio resource configuration module 22 is configured to generate a second resource configuration for instructing the device to discover the resource according to the device discovery resource configuration parameter of the second access node. The second resource is configured to indicate a configuration of a device discovery resource of a cell of the second access node;

所述无线资源配置模块 22，配置用于指示自身下属小区设备发现资源的第三资源配置； The radio resource configuration module 22 is configured to indicate a third resource configuration for discovering resources of the subordinate cell device;

所述第二通信模块 23，配置为将所述第二资源配置和所述第三资源配置发送给 UE。 The second communication module 23 is configured to send the second resource configuration and the third resource configuration to the UE.

所述设备发现资源为时域资源； The device discovery resource is a time domain resource;

所述无线资源配置模块 22，配置为根据所述逻辑帧和 /或逻辑子帧与下属小区无线帧和 /或无线子帧的定时偏差，生成用于指示所述时域资源的配置参数； The radio resource configuration module 22 is configured to generate a configuration parameter for indicating the time domain resource according to a timing offset between the logical frame and/or the logical sub-frame and the subordinate cell radio frame and/or the radio sub-frame;

相应的，所述第二通信模块 23，配置为通过第二资源配置将所述配置参数发送给 UE; 或者， Correspondingly, the second communication module 23 is configured to send the configuration parameter to the UE by using a second resource configuration; or

所述无线资源配置模块 22，配置为根据所述无线帧和 /或无线子帧位置，生成用于指示所述时域资源的配置参数； The radio resource configuration module 22 is configured to generate, according to the radio frame and/or the location of the radio subframe, a configuration parameter used to indicate the time domain resource;

相应的，所述第二通信模块 23，配置为通过第二资源配置将所述配置参数发送给 UE。 Correspondingly, the second communication module 23 is configured to send the configuration parameter to the UE by using the second resource configuration.

所述无线资源配置模块 22，配置为根据自身下属小区的无线帧和 /或无线子帧定时与所述第二接入节点下属小区的无线帧和 /或无线子帧定时的偏差，生成用于指示所述时域资源的配置参数；相应的，所述第二通信模块 23，配置为通过第二资源配置将所述配置参数发送给 UE; 或者， The radio resource configuration module 22 is configured to generate, according to a deviation between a radio frame and/or a radio subframe timing of the subordinate cell and a radio frame and/or a radio subframe timing of the subordinate cell of the second access node, Determining configuration parameters of the time domain resource; Correspondingly, the second communication module 23 is configured to send the configuration parameter to the UE by using a second resource configuration; or

所述无线资源配置模块 22，配置为根据所述无线帧和 /或无线子帧位置生成用于指示所述时域资源的配置参数； The radio resource configuration module 22 is configured to generate, according to the radio frame and/or the radio subframe location, a configuration parameter used to indicate the time domain resource;

基于上述装置，本发明实施例还提供一种设备发现装置，该装置可以设置在上层网络实体或所述的第二接入节点，如图 10所示，该装置包括：第一资源配置模块 24和第三通信模块 25; 其中， Based on the foregoing device, the embodiment of the present invention further provides a device discovery device, where the device may be disposed in an upper layer network entity or the second access node. As shown in FIG. 10, the device includes: a first resource configuration module 24 And a third communication module 25; wherein

所述第一资源配置模块 24，可以由上层网络实体或第二接入节点的处理器实现，配置为配置设备发现资源并生成用于指示所述设备发现资源的第一资源配置； The first resource configuration module 24 may be implemented by an upper layer network entity or a processor of the second access node, configured to configure a device discovery resource and generate a first resource configuration for instructing the device to discover resources;

所述第三通信模块 25，可以由上层网络实体或第二接入节点的发射器实现，配置为将所述第一资源配置模块 24配置的第一资源配置发送给第一接入节点； The third communication module 25 may be implemented by a transmitter of an upper layer network entity or a second access node, and configured to send the first resource configuration configured by the first resource configuration module 24 to the first access node;

所述第一资源配置模块 24，配置为生成包括设备发现资源的上层配置参数的第一资源配置；或者，配置为生成包括第二接入节点的设备发现资源配置参数的第一资源配置。 The first resource configuration module 24 is configured to generate a first resource configuration that includes an upper layer configuration parameter of the device discovery resource, or is configured to generate a first resource configuration that includes a device discovery resource configuration parameter of the second access node.

本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序来指令相关硬件完成，所述程序可以存储于计算机可读存储介质中，如只读存储器、磁盘或光盘等。可选地，上述实施例的全部或部分步骤也可以使用一个或多个集成电路来实现。相应地，上述实施例中的各模块 /单元可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。本申请不限制于任何特定形式的硬件和软件的结合。 One of ordinary skill in the art will appreciate that all or a portion of the above steps may be performed by a program to instruct the associated hardware, such as a read only memory, a magnetic disk, or an optical disk. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the above embodiment may be implemented in the form of hardware or in the form of a software function module. This application Not limited to any particular form of hardware and software combination.

综上所述，本发明通过第一接入节点接收设备发现第一资源配置，生成用于向 UE指示设备发现资源的第二资源配置，不但能够实现小区内的设备发现，也可实现驻留于不同小区 UE的相互发现，在解决蜂窝通信***中设备到设备通信的设备发现问题的同时，显著提高了设备到设备通信应用的广泛性。 In summary, the first access node of the first access node discovers the first resource configuration, and generates a second resource configuration for indicating the device discovery resource to the UE, which not only enables device discovery in the cell, but also implements camping. The mutual discovery of UEs in different cells significantly improves the extensiveness of device-to-device communication applications while solving the problem of device-to-device communication in cell communication systems.

以上所述，仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。 The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

权利要求书 claims

1、一种设备发现方法，该方法包括： 1. A device discovery method, the method includes:

第一接入节点接收设备发现第一资源配置，根据所述设备发现第一资源配置生成用于向用户设备指示设备发现资源的第二资源配置，并将所述第二资源配置发送给用户设备； The first access node receives the first resource configuration for device discovery, generates a second resource configuration for indicating device discovery resources to the user equipment according to the first resource configuration for device discovery, and sends the second resource configuration to the user equipment. ;

所述设备发现资源用于用户设备进行设备到设备通信的设备发现。 The device discovery resources are used for device discovery of user equipment for device-to-device communication.

2、根据权利要求 1所述的设备发现方法，其中，所述第一接入节点接收设备发现第一资源配置，根据所述设备发现第一资源配置生成用于向用户设备指示设备发现资源的第二资源配置，包括： 2. The device discovery method according to claim 1, wherein the first access node receives a first resource configuration for device discovery, and generates a message for indicating device discovery resources to the user equipment according to the first resource configuration for device discovery. The second resource configuration includes:

所述第一资源配置由上层网络实体发送，所述第一资源配置包括设备发现资源的上层配置参数，所述第一接入节点根据所述上层配置参数和下属小区的无线帧和 /或无线子帧定时生成用于指示设备发现资源的第二资源配置； The first resource configuration is sent by an upper layer network entity. The first resource configuration includes an upper layer configuration parameter of a device discovery resource. The first access node performs the configuration according to the upper layer configuration parameter and the wireless frame and/or wireless signal of the subordinate cell. Subframe timing generates a second resource configuration for instructing the device to discover resources;

或者，所述第一资源配置由上层网络实体发送，所述第一资源配置包括设备发现资源的上层配置参数，所述第一接入节点根据所述上层配置参数生成用于指示设备发现资源的第二资源配置。 Alternatively, the first resource configuration is sent by an upper layer network entity, the first resource configuration includes upper layer configuration parameters of device discovery resources, and the first access node generates a configuration parameter indicating device discovery resources according to the upper layer configuration parameters. Second resource allocation.

3、根据权利要求 1所述的设备发现方法，其中，所述第一接入节点接收设备发现第一资源配置，根据所述设备发现第一资源配置生成用于向用户设备 UE指示设备发现资源的第二资源配置，包括： 3. The device discovery method according to claim 1, wherein the first access node receives a first resource configuration for device discovery, and generates a device discovery resource according to the first resource configuration for indicating device discovery to the user equipment UE. The second resource configuration includes:

所述第一资源配置由第二接入节点发送，所述第一资源配置包括所述第二接入节点或所述第二接入节点下属小区的设备发现资源配置参数，第一接入节点根据所述第二接入节点的设备发现资源配置参数和下属小区的无线帧和 /或无线子帧定时生成用于指示设备发现资源的第二资源配置；或者，所述第一资源配置由第二接入节点发送，所述第一资源配置包括所述第二接入节点的设备发现资源配置参数，第一接入节点根据所述第二接入节点的设备发现资源配置参数生成用于指示设备发现资源的第二资源配置。 The first resource configuration is sent by the second access node, and the first resource configuration includes device discovery resource configuration parameters of the second access node or a cell subordinate to the second access node, and the first access node A second resource configuration indicating device discovery resources is generated according to the device discovery resource configuration parameters of the second access node and the radio frame and/or radio subframe timing of the subordinate cell; or, the first resource configuration is configured by the third The second access node sends, the first resource configuration includes the device discovery resource configuration parameters of the second access node, and the first access node performs the configuration according to the second access node. The device discovery resource configuration parameters of the second access node generate a second resource configuration used to indicate the device discovery resource.

4、根据权利要求 3所述的设备发现方法，其中，该方法还包括：所述第二资源配置用于指示所述第二接入节点下属小区的设备发现资源的配置； 4. The device discovery method according to claim 3, wherein the method further includes: the second resource configuration is used to indicate the configuration of device discovery resources of a cell subordinate to the second access node;

所述第一接入节点配置用于指示自身下属小区设备发现资源的第三资源配置； The first access node configures a third resource configuration for instructing its subordinate cell equipment to discover resources;

所述第一接入节点将所述第二资源配置和所述第三资源配置发送给用户设备。 The first access node sends the second resource configuration and the third resource configuration to the user equipment.

5、根据权利要求 2所述的设备发现方法，其中， 5. The device discovery method according to claim 2, wherein,

所述设备发现资源为时域资源； The device discovery resources are time domain resources;

所述上层配置参数通过指示逻辑帧和 /或逻辑子帧位置的方式指示所述时域资源，所述第一接入节点根据所述逻辑帧和 /或逻辑子帧与下属小区无线帧和 /或无线子帧的定时偏差，生成用于指示所述时域资源的配置参数，并通过第二资源配置将所述配置参数发送给用户设备；或者， The upper layer configuration parameters indicate the time domain resources by indicating the location of logical frames and/or logical subframes, and the first access node communicates with subordinate cell radio frames and/or based on the logical frames and/or logical subframes. or the timing deviation of the wireless subframe, generate configuration parameters indicating the time domain resources, and send the configuration parameters to the user equipment through the second resource configuration; or,

所述上层配置参数通过指示无线帧和 /或无线子帧位置的方式指示所述时域资源，所述第一接入节点根据所述无线帧和 /或无线子帧位置，生成用于指示所述时域资源的配置参数，并通过第二资源配置将所述配置参数发送给用户设备。 The upper layer configuration parameter indicates the time domain resource by indicating the position of the wireless frame and/or the wireless subframe, and the first access node generates a parameter for indicating the position of the wireless frame and/or the wireless subframe according to the position of the wireless frame and/or the wireless subframe. configuration parameters of the time domain resource, and send the configuration parameters to the user equipment through the second resource configuration.

6、根据权利要求 3或 4所述的设备发现方法，其中， 6. The device discovery method according to claim 3 or 4, wherein,

所述第二接入节点的设备发现资源配置参数通过指示无线帧和 /或无线子帧位置的方式指示所述时域资源；所述第一接入节点根据自身下属小区的无线帧和 /或无线子帧定时与所述第二接入节点下属小区的无线帧和 /或无线子帧定时的偏差，生成用于指示所述时域资源的配置参数，并通过第二资源配置将所述配置参数发送给用户设备；或者， The device discovery resource configuration parameters of the second access node indicate the time domain resources by indicating the position of wireless frames and/or wireless subframes; the first access node indicates the time domain resources according to the wireless frames and/or wireless subframes of its subordinate cells. The deviation between the wireless subframe timing and the wireless frame and/or wireless subframe timing of the cell subordinate to the second access node is generated to indicate the configuration parameter of the time domain resource, and is passed through the second access node. The second resource configuration sends the configuration parameters to the user equipment; or,

所述第二接入节点的设备发现资源配置参数通过指示无线帧和 /或无线子帧位置的方式指示所述时域资源；所述第一接入节点根据所述无线帧和 / 或无线子帧位置生成用于指示所述时域资源的配置参数，并通过第二资源配置将所述配置参数发送给用户设备。 The device discovery resource configuration parameter of the second access node indicates the time domain resource by indicating the position of the wireless frame and/or wireless subframe; The frame position generates configuration parameters used to indicate the time domain resources, and sends the configuration parameters to the user equipment through the second resource configuration.

7、根据权利要求 4所述的设备发现方法，其中， 7. The device discovery method according to claim 4, wherein,

所述第三资源配置中包括用于指示所述第一接入节点下属小区的设备发现时域资源的配置参数，所述配置参数通过指示无线帧和 /或无线子帧位置的方式指示所述时域资源。 The third resource configuration includes configuration parameters for indicating device discovery time domain resources of a cell subordinate to the first access node, and the configuration parameters indicate the location of radio frames and/or radio subframes. time domain resources.

8、根据权利要求 1至 7任一项所述的设备发现方法，其中，所述第一资源配置中还包括设备发现的频域资源配置参数； 8. The device discovery method according to any one of claims 1 to 7, wherein the first resource configuration also includes frequency domain resource configuration parameters for device discovery;

所述频域资源配置参数通过指示所分配的频域资源块和 /或载波索引的方式指示设备发现频域资源，所述设备发现频域资源用于用户设备进行设备到设备通信的设备发现。 The frequency domain resource configuration parameter instructs the device to discover frequency domain resources by indicating the allocated frequency domain resource block and/or carrier index. The device discovery frequency domain resource is used for device discovery of user equipment for device-to-device communication.

9、根据权利要求 4或 7所述的设备发现方法，其中，所述第三资源配置包括频域资源配置参数，所述频域资源配置参数通过指示所分配的频域资源块和 /或载波索引的方式指示设备发现频域资源，所述设备发现频域资源用于用户设备进行设备到设备通信的设备发现。 9. The device discovery method according to claim 4 or 7, wherein the third resource configuration includes frequency domain resource configuration parameters, and the frequency domain resource configuration parameters indicate the allocated frequency domain resource blocks and/or carriers. The index method indicates the device discovery frequency domain resource, and the device discovery frequency domain resource is used for device discovery by the user equipment for device-to-device communication.

10、根据权利要求 2或 3所述的设备发现方法，其中，所述第二接入节点为具有以下特征至少之一的接入节点： 10. The device discovery method according to claim 2 or 3, wherein the second access node is an access node having at least one of the following characteristics:

与所述第一接入节点同属一个发现区域的主接入节点； A master access node that belongs to the same discovery area as the first access node;

与所述第一接入节点相邻的接入节点； An access node adjacent to the first access node;

与所述第一接入节点间存在通信链路的接入节点； An access node that has a communication link with the first access node;

11、一种设备发现装置，该装置包括：第一通信模块、无线资源配置模块、第二通信模块；其中， 11. A device discovery device, the device includes: a first communication module, wireless resource configuration module, second communication module; where,

所述第一通信模块，配置为接收设备发现第一资源配置； The first communication module is configured to receive the device to discover the first resource configuration;

所述无线资源配置模块，配置为根据所述第一资源配置生成用于向用户设备指示设备发现资源的第二资源配置； The wireless resource configuration module is configured to generate a second resource configuration for indicating device discovery resources to the user equipment according to the first resource configuration;

12、根据权利要求 11所述的设备发现装置，其中，所述第一通信模块，配置为接收上层网络实体发送的第一资源配置，所述第一资源配置包括设备发现资源的上层配置参数； 12. The device discovery device according to claim 11, wherein the first communication module is configured to receive a first resource configuration sent by an upper layer network entity, and the first resource configuration includes upper layer configuration parameters of device discovery resources;

相应的，所述无线资源配置模块，配置为根据所述上层配置参数和下属小区的无线帧和 /或无线子帧定时生成用于指示设备发现资源的第二资源配置； Correspondingly, the wireless resource configuration module is configured to generate a second resource configuration for instructing the device to discover resources according to the upper layer configuration parameters and the wireless frame and/or wireless subframe timing of the subordinate cell;

或者，所述第一通信模块，配置为接收上层网络实体发送的第一资源配置，所述第一资源配置包括设备发现资源的上层配置参数； Alternatively, the first communication module is configured to receive a first resource configuration sent by an upper layer network entity, where the first resource configuration includes upper layer configuration parameters of device discovery resources;

相应的，所述无线资源配置模块，配置为根据所述上层配置参数生成用于指示设备发现资源的第二资源配置。 Correspondingly, the wireless resource configuration module is configured to generate a second resource configuration for instructing the device to discover resources according to the upper layer configuration parameters.

13、根据权利要求 11所述的设备发现装置，其中，所述第一通信模块，配置为接收第二接入节点发送的第一资源配置，所述第一资源配置包括所述第二接入节点的设备发现资源配置参数； 13. The device discovery device according to claim 11, wherein the first communication module is configured to receive the first resource configuration sent by the second access node, the first resource configuration includes the second access node The device discovery resource configuration parameters of the node;

相应的，所述无线资源配置模块，配置为根据所述第二接入节点的设备发现资源配置参数和下属小区的无线帧和 /或无线子帧定时生成用于指示设备发现资源的第二资源配置； Correspondingly, the wireless resource configuration module is configured to generate a second resource for indicating device discovery resources according to the device discovery resource configuration parameters of the second access node and the wireless frame and/or wireless subframe timing of the subordinate cell. configuration;

或者，所述第一通信模块，配置为接收第二接入节点发送的第一资源配置，所述第一资源配置包括所述第二接入节点的设备发现资源配置参数；相应的，所述无线资源配置模块，配置为根据所述第二接入节点的设备发现资源配置参数生成用于指示设备发现资源的第二资源配置。 Or, the first communication module is configured to receive a first resource configuration sent by the second access node, where the first resource configuration includes device discovery resource configuration parameters of the second access node; Correspondingly, the wireless resource configuration module is configured to generate a second resource configuration indicating device discovery resources according to the device discovery resource configuration parameters of the second access node.

14、根据权利要求 13所述的设备发现装置，其中，所述第二资源配置用于指示所述第二接入节点下属小区的设备发现资源的配置； 14. The device discovery device according to claim 13, wherein the second resource configuration is used to indicate the configuration of device discovery resources of a cell subordinate to the second access node;

所述无线资源配置模块，还配置用于指示自身下属小区设备发现资源的第三资源配置； The wireless resource configuration module is also configured to instruct its own subordinate cell equipment to discover a third resource configuration of resources;

所述第二通信模块，配置为将所述第二资源配置和所述第三资源配置发送给用户设备。 The second communication module is configured to send the second resource configuration and the third resource configuration to user equipment.

15、根据权利要求 12所述的设备发现装置，其中， 15. The device discovery device according to claim 12, wherein,

所述上层配置参数通过指示逻辑帧和 /或逻辑子帧位置的方式指示所述时域资源； The upper layer configuration parameters indicate the time domain resources by indicating the location of logical frames and/or logical subframes;

所述无线资源配置模块，配置为根据所述逻辑帧和 /或逻辑子帧与下属小区无线帧和 /或无线子帧的定时偏差，生成用于指示所述时域资源的配置参数； The wireless resource configuration module is configured to generate configuration parameters indicating the time domain resources according to the timing deviation between the logical frame and/or logical subframe and the subordinate cell wireless frame and/or wireless subframe;

相应的，所述第二通信模块，配置为通过第二资源配置将所述配置参数发送给用户设备； Correspondingly, the second communication module is configured to send the configuration parameters to the user equipment through the second resource configuration;

或者， or,

所述上层配置参数通过指示无线帧和 /或无线子帧位置的方式指示所述时域资源； The upper layer configuration parameters indicate the time domain resources by indicating the position of radio frames and/or radio subframes;

所述无线资源配置模块，配置为根据所述无线帧和 /或无线子帧位置，生成用于指示所述时域资源的配置参数； The wireless resource configuration module is configured to generate configuration parameters indicating the time domain resources according to the wireless frame and/or wireless subframe position;

相应的，所述第二通信模块，配置为通过第二资源配置将所述配置参数发送给用户设备。 Correspondingly, the second communication module is configured to send the configuration parameters to the user equipment through the second resource configuration.

16、根据权利要求 13或 14所述的设备发现装置，其中，所述设备发现资源为时域资源； 16. The device discovery device according to claim 13 or 14, wherein, The device discovery resources are time domain resources;

所述第二接入节点的设备发现资源配置参数通过指示无线帧和 /或无线子帧位置的方式指示所述时域资源； The device discovery resource configuration parameter of the second access node indicates the time domain resource by indicating the location of wireless frames and/or wireless subframes;

所述无线资源配置模块，配置为根据自身下属小区的无线帧和 /或无线子帧定时与所述第二接入节点下属小区的无线帧和 /或无线子帧定时的偏差，生成用于指示所述时域资源的配置参数； The wireless resource configuration module is configured to generate a signal for indicating based on the deviation between the wireless frame and/or wireless subframe timing of the cell subordinate to the second access node and the wireless frame and/or wireless subframe timing of the cell subordinate to the second access node. Configuration parameters of the time domain resources;

或者， or,

所述无线资源配置模块，配置为根据所述无线帧和 /或无线子帧位置生成用于指示所述时域资源的配置参数； The wireless resource configuration module is configured to generate configuration parameters indicating the time domain resources according to the wireless frame and/or wireless subframe position;

17、一种设备发现装置，该装置包括：第一资源配置模块和第三通信模块；其中， 17. A device discovery device, the device includes: a first resource configuration module and a third communication module; wherein,

所述第一资源配置模块，配置为配置设备发现资源并生成用于指示所述设备发现资源的第一资源配置； The first resource configuration module is configured to configure device discovery resources and generate a first resource configuration indicating the device discovery resources;

18、根据权利要求 17所述的设备发现装置，其中，所述第一资源配置模块，配置为生成包括设备发现资源的上层配置参数的第一资源配置；或者，配置为生成包括第二接入节点的设备发现资源配置参数的第一资源配置。 18. The device discovery apparatus according to claim 17, wherein the first resource configuration module is configured to generate a first resource configuration including upper layer configuration parameters of device discovery resources; or, is configured to generate a first resource configuration including a second access configuration parameter. The node's device discovers a first resource configuration of resource configuration parameters.