WO2014101797A1 - 设备发现方法及终端 - Google Patents

设备发现方法及终端 Download PDF

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Publication number
WO2014101797A1
WO2014101797A1 PCT/CN2013/090571 CN2013090571W WO2014101797A1 WO 2014101797 A1 WO2014101797 A1 WO 2014101797A1 CN 2013090571 W CN2013090571 W CN 2013090571W WO 2014101797 A1 WO2014101797 A1 WO 2014101797A1
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Prior art keywords
resource block
service type
resource
business service
service
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PCT/CN2013/090571
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English (en)
French (fr)
Inventor
孙迎花
周晗
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华为技术有限公司
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Publication of WO2014101797A1 publication Critical patent/WO2014101797A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to communications technologies, and in particular, to a device discovery method and a terminal. Background technique
  • D2D Device-to-Device
  • device discovery is that a device needs to discover other devices around it, and also let the surrounding devices discover the existence status of the device.
  • Qualcomm's D2D also known as FlashLinQ
  • FlashLinQ is a communication system that combines synchronization technology with OFDM (Orthogonal Frequency Division Multiplexing) and completes the communication process on a proprietary spectrum.
  • the direct connection between terminals in the FlashLinQ communication system includes four phases: a synchronization phase, a device discovery phase, a paging phase, and a connection phase.
  • a synchronization phase In the device discovery phase, each terminal in the FlashLinQ communication system can periodically search for other terminals within about 1 km in the vicinity, and the terminal periodically broadcasts its own device discovery signal.
  • all terminals providing various service service types in the system randomly select idle resources to broadcast the device discovery signal.
  • aspects of the present invention provide a device discovery method and terminal for reducing power consumption of a terminal Fee.
  • An aspect of the present invention provides a device discovery method, including:
  • the device discovery signal broadcasted on the first resource block is monitored; wherein the device discovery signal broadcasted on the first resource block is broadcast on the first resource block by a terminal that provides the service type service.
  • the device discovery method as described above further includes:
  • a device discovery signal is broadcast on an idle resource of the second resource block.
  • the device discovery method as described above further includes:
  • the device discovery method as described above before the obtaining the correspondence between the service service type and the resource block, the method further includes:
  • the base station Receiving, by the base station, the split information that carries the corresponding relationship between the service service type and the resource block, where the correspondence between the service service type and the resource block is that the base station divides the device discovery resource into at least two resource blocks, And generating the corresponding service service type for each resource block, and storing the corresponding relationship between the service service type and the resource block.
  • the device discovery method as described above further includes:
  • the partitioning update information is an idle resource of the resource block whose resource utilization is lower than a preset threshold according to the monitored resource utilization ratio of each resource block. Generated after a resource block whose resource utilization is higher than the preset threshold;
  • Another aspect of the present invention provides a terminal, including:
  • a first acquiring module configured to acquire a correspondence between a service service type and a resource block
  • a second acquiring module configured to acquire, according to the service service type and the corresponding relationship of the resource blocks, the first resource block corresponding to the service type of the service required by the service;
  • a monitoring module configured to monitor a device discovery signal broadcasted on the first resource block, where the device discovery signal broadcasted on the first resource block is a terminal that provides the service service type service in the first resource block Broadcasted on.
  • the terminal as described above further includes:
  • a third acquiring module configured to acquire, according to the service service type and the corresponding relationship of the resource blocks, a second resource block corresponding to the service service type to which the service service to be provided belongs;
  • the first broadcast module is configured to broadcast a device discovery signal on the idle resource of the second resource block.
  • the terminal as described above further includes:
  • a sending module configured to send, to the base station, request information that carries a service service type to which the service service to be served belongs, so that the base station obtains a service service type corresponding to the service service to be provided according to the service service type and the corresponding relationship of the resource block
  • the idle resource in the two resource blocks, and the response information carrying the idle resource is returned, where the correspondence between the service service type and the resource block is that the base station divides the device discovery resource into at least two resource blocks, and Generated after setting the corresponding service service type for each resource block;
  • a second broadcast module configured to broadcast a device discovery signal on the idle resource according to the response information.
  • the terminal as described above further includes:
  • a first receiving module configured to receive, by the base station, the split information that carries the corresponding relationship between the service service type and the resource block, where the corresponding relationship between the service service type and the resource block is that the base station divides the device discovery resource After being generated into at least two resource blocks and setting corresponding service service types for each resource block;
  • a storage module configured to store a correspondence between the service service type and a resource block.
  • the terminal as described above further includes: a second receiving module, configured to receive the partitioning update information that is broadcast by the base station, where the partitioning update information is that the base station uses the resource block whose resource utilization is lower than a preset threshold according to the monitored resource utilization of each resource block.
  • the idle resource is allocated after the resource block whose resource utilization is higher than the preset threshold;
  • an update module configured to update the correspondence between the service service type and the resource block according to the division update information.
  • the embodiment of the present invention divides the time-frequency resource into multiple resource blocks, and each resource block corresponds to a service service type, so that the terminal only needs to be on the idle resource of the resource block of the service service type of interest.
  • the broadcast device discovery signal only monitors the device discovery signal on the resource block of the service service type of interest, and does not need to monitor other device discovery signals on the resource block of the service service type, which can effectively reduce the power consumption waste of the terminal.
  • Embodiment 1 is a schematic flowchart of Embodiment 1 of a device discovery method provided by the present invention
  • FIG. 2 is a schematic flow chart of a specific embodiment of a terminal broadcast device discovery signal according to the present invention.
  • FIG. 3 is a schematic flow chart of another specific embodiment of a terminal broadcast device discovery signal provided by the present invention.
  • FIG. 5 is a schematic flowchart of Embodiment 3 of the device discovery method provided by the present invention.
  • FIG. 6 is a schematic flowchart diagram of Embodiment 4 of the device discovery method provided by the present invention.
  • FIG. 7 is a schematic structural diagram of Embodiment 1 of a terminal provided by the present invention.
  • Embodiment 8 is a schematic structural diagram of Embodiment 2 of a terminal provided by the present invention.
  • FIG. 9 is a schematic structural diagram of Embodiment 3 of a terminal provided by the present invention.
  • FIG. 10 is a schematic structural diagram of Embodiment 4 of a terminal provided by the present invention. detailed description
  • FIG. 1 is a schematic flowchart diagram of Embodiment 1 of a device discovery method provided by the present invention. As shown in the figure, the method in the first embodiment includes:
  • Step 101 The terminal acquires a correspondence between a service service type and a resource block.
  • the correspondence between the service service type and the resource block may be pre-stored by the terminal, that is,
  • the corresponding relationship between the service service type and the resource block is pre-stored in each terminal in the D2D communication system.
  • the correspondence between the service service type and the resource block may also be obtained and stored according to the division information received from the base station broadcast.
  • the method further includes: first, the split information that is broadcast by the receiving base station and that carries the corresponding relationship between the service service type and the resource block, where The corresponding relationship between the service service type and the resource block is generated by the base station dividing the device discovery resource into at least two resource blocks, and setting a corresponding service service type for each resource block. Then, the terminal stores the service service type and the correspondence relationship of resource blocks carried by the division information.
  • Step 102 The terminal acquires, according to the service service type and the corresponding relationship of the resource blocks, the first resource block corresponding to the service type that belongs to the service.
  • the business service type includes: any two or a combination of any two or more of an advertisement service type, a friend service type, a second-hand product service type, a game service type, a movie service type, and the like.
  • the terminal acquires a resource block corresponding to the friend service type according to the service service type and the correspondence relationship of the resource blocks.
  • Step 103 The terminal monitors a device discovery signal broadcasted on the first resource block, where the device discovery signal broadcasted on the first resource block is a terminal that provides the service service type service in the first resource. Broadcast on the block.
  • the process of providing the terminal broadcast device discovery signal of the service service type service may be implemented by using the following process, as shown in FIG. 2, including: Step 1031: The terminal that provides the service type service receives the first resource block corresponding to the service service type to which the service service type belongs according to the stored service service type and the corresponding relationship of the resource blocks.
  • Step 1032 The terminal that provides the service type service broadcasts the device discovery signal of the device on the idle resource of the first resource block.
  • the process of discovering a signal by the foregoing broadcast device is an implementation example in which the terminal autonomously performs broadcast of the device discovery signal according to the stored service service type and the corresponding relationship of the resource blocks.
  • the process of providing the terminal broadcast device discovery signal of the service service type service may also be implemented by using the following process, as shown in FIG. 3, including:
  • Step 1033 The terminal that provides the service type service sends the request information of the service service type to which the service to be provided belongs to the base station, so that the base station acquires the to-be-provided according to the service service type and the corresponding relationship of the resource block.
  • the service service type of the service service corresponds to the idle resource in the first resource block, and returns the response information carrying the idle resource, where the correspondence between the service service type and the resource block is that the base station divides the device discovery resource. It is generated after at least two resource blocks and corresponding business service types are set for each resource block.
  • Step 1034 The terminal that provides the service type service broadcasts a device discovery signal on the idle resource according to the response information.
  • the process of discovering a signal by the foregoing broadcast device is to allocate a corresponding idle resource to the terminal by using the base station, and the terminal broadcasts the device discovery signal on the idle resource allocated by the base station.
  • the base station can obtain the resource utilization of each resource block by using the foregoing method for allocating resources through the base station, and the resource utilization of each resource block can be monitored, and the resource of a certain resource block can be realized.
  • the base station allocates some idle resources whose resource block utilization is lower than the preset threshold to the resource block whose resource utilization is greater than the preset threshold, so as to avoid the resource utilization being greater than the preset.
  • the internal interference of the resource block of the threshold is too large.
  • the base station allocates, according to the monitored resource utilization of each resource block, the idle resource of the resource block whose resource utilization is lower than the preset threshold to the resource block whose resource utilization is higher than the preset threshold, and
  • the division update information is generated after the division.
  • the base station broadcasts the division update information to enable the terminal that receives the division update information to update the stored correspondence between the service service type and the resource block according to the division update information, and then the terminal can be based on
  • the updated business service type and the corresponding relationship of resource blocks are monitored by the business service type corresponding to the service service type to which the business service belongs. Device information on the source block.
  • the technical solution of the terminal device discovery signal broadcast disclosed above ensures that the terminal providing the same service type service broadcasts the device discovery signal on the same resource block, so that the terminal requiring the service type service service only listens to the attention of the device.
  • the device discovery signal broadcasted by the terminal of the service service type solves the problem that the power consumption of the device in the prior art needs to be monitored by all the devices on the time-frequency resource.
  • the time-frequency resource is divided into multiple resource blocks, and each resource block corresponds to a service service type, so that the terminal broadcasts the device discovery signal only on the idle resource of the resource block of the service service type of interest, and only listens.
  • Embodiment 2 of the device discovery method provided by the present invention is shown.
  • the foregoing embodiment 1 is a process of listening to a device discovery signal on a resource block corresponding to the service service type when the terminal needs a service service of a service service type.
  • the second embodiment is based on the foregoing first embodiment, and provides a process for a terminal to broadcast a device discovery signal when the terminal is to provide a service service of a certain service type, including:
  • Step 201 The terminal acquires, according to the service service type and the corresponding relationship of the resource blocks, the second resource block corresponding to the service service type to which the service service belongs.
  • the business service type includes: any two or a combination of any two or more of an advertisement service type, a friend service type, a second-hand product service type, a game service type, a movie service type, and the like. All terminals in the system store the same business service type and the corresponding relationship of resource blocks. Or the base station divides the time-frequency resource according to the number of types of the service service type, and sets a corresponding service service type for each of the divided resource blocks, and generates a correspondence between the service service type and the resource block. relationship. The base station broadcasts the correspondence between the service service type and the resource block, so that each terminal stores the correspondence between the service service type and the resource block. For example, the terminal currently wants to send an advertisement message. The terminal obtains a resource block corresponding to the type of the advertisement service to which the advertisement information belongs, according to the correspondence between the service service type and the resource block.
  • Step 202 The terminal broadcasts a device discovery signal on an idle resource of the second resource block.
  • the flow of the third embodiment of the device discovery method provided by the present invention is schematically illustrated.
  • the first embodiment is a process of monitoring a device discovery signal on a corresponding resource block when the terminal needs a service service.
  • the third embodiment is based on the foregoing first embodiment, and provides a process for the terminal to broadcast a device discovery signal when the terminal is to provide a service service, including:
  • Step 301 The terminal sends, to the base station, the request information that carries the service service type to which the service service belongs, so that the base station obtains the service service type to which the service service to be provided belongs according to the service service type and the corresponding relationship of the resource block.
  • the idle resource in the second resource block, and the response information carrying the idle resource is returned, where the correspondence between the service service type and the resource block is that the base station divides the device discovery resource into at least two resource blocks. And generated after the corresponding service service type is set for each resource block.
  • Step 302 The terminal broadcasts a device discovery signal on the idle resource according to the response information.
  • the process of discovering a signal by the broadcast device provided by the third embodiment is to allocate a corresponding idle resource to the terminal by using the base station, and the terminal broadcasts the device discovery signal on the idle resource allocated by the base station.
  • the base station can obtain the resource utilization of each resource block by using the foregoing method for allocating resources through the base station, and the resource utilization of each resource block can be monitored, and the resource of a certain resource block can be realized.
  • the base station allocates some idle resources whose resource block utilization is lower than the preset threshold to the resource block whose resource utilization is greater than the preset threshold, so as to avoid the resource utilization being greater than the preset.
  • the internal interference of the resource block of the threshold is too large.
  • the third embodiment as shown in FIG. 6, further includes:
  • Step 303 The terminal receives the division update information that is broadcast by the base station, where the division update information is a resource block that is used by the base station to lower the resource utilization rate than the preset threshold according to the monitored resource utilization ratio of each resource block.
  • the idle resources are allocated after the resource blocks whose resource utilization is higher than the preset threshold.
  • Step 304 The terminal updates the correspondence between the service service type and the resource block according to the division update information.
  • FIG. 7 is a schematic structural diagram of Embodiment 1 of the terminal provided by the present invention.
  • the terminal in this embodiment includes: a first acquiring module 1, a second acquiring module 2, and a listening module 3.
  • the first acquiring module 1 is configured to acquire a correspondence between a service service type and a resource block.
  • the second obtaining module 2 is configured to obtain, according to the service service type and the corresponding relationship of the resource blocks, the first resource block corresponding to the service service type to which the required service service belongs.
  • the monitoring module 3 is configured to monitor the first resource block And a device discovery signal broadcasted on the first resource block, where the device discovery signal broadcasted on the first resource block is broadcast on the first resource block by a terminal that provides the service service type service.
  • the time-frequency resource is divided into multiple resource blocks, and each resource block corresponds to a service service type, so that the terminal broadcasts the device discovery signal only on the idle resource of the resource block of the service service type of interest. Listening to the device discovery signal on the resource block of the service service type of interest, without monitoring other device discovery signals on the resource block of the service service type, which can effectively reduce the power consumption of the terminal.
  • FIG. 8 is a schematic structural diagram of Embodiment 2 of the terminal provided by the present invention.
  • the terminal according to the second embodiment includes: a third acquiring module 4 and a first broadcast module 5, in addition to the modules described in the first embodiment.
  • the third obtaining module 4 is configured to obtain, according to the service service type and the corresponding relationship of the resource blocks, the second resource block corresponding to the service service type to which the service service to be provided belongs.
  • the broadcast module 5 is configured to broadcast a device discovery signal on an idle resource of the second resource block.
  • the terminal in the second embodiment further includes: a first receiving module 6 and a storage module 7.
  • the first receiving module 6 is configured to receive, by the base station, the split information that carries the corresponding relationship between the service service type and the resource block, where the corresponding relationship between the service service type and the resource block is that the base station discovers the device.
  • the resource is divided into at least two resource blocks, and is generated after the corresponding service service type is set for each resource block.
  • the storage module 7 is configured to store a correspondence between the service service type and a resource block.
  • FIG. 9 is a schematic structural diagram of Embodiment 3 of the terminal provided by the present invention.
  • the terminal in the third embodiment further includes: a sending module 8 and a second broadcast module 9.
  • the sending module 8 is configured to send, to the base station, the request information that carries the service service type to which the service service belongs, so that the base station acquires the service to be provided by the service service according to the service service type and the corresponding relationship of the resource block.
  • the service type corresponds to the idle resource in the second resource block, and returns the response information that carries the idle resource, where the correspondence between the service service type and the resource block is that the base station divides the device discovery resource into at least two A resource block is generated after the corresponding service service type is set for each resource block.
  • the second broadcast module 9 is configured to broadcast a device discovery signal on the idle resource according to the response information.
  • the terminal in the foregoing Embodiment 3 further includes: a first receiving module 6 and storage module 7.
  • the first receiving module 6 is configured to receive the split information that is broadcast by the base station and that carries the corresponding relationship between the service service type and the resource block, where the correspondence between the service service type and the resource block is that the base station
  • the device discovery resource is divided into at least two resource blocks, and is generated after the corresponding service service type is set for each resource block.
  • the storage module 7 is configured to store a correspondence between the service service type and a resource block.
  • the terminal in the foregoing Embodiment 3 further includes: a second receiving module 10 and an updating module 11.
  • the second receiving module 10 is configured to receive split update information that is broadcast by the base station, where the split update information is that the base station uses the resource utilization rate of each resource block that is monitored, and the resource utilization rate is lower than a preset threshold.
  • the idle resource of the resource block is allocated after the resource block whose resource utilization is higher than the preset threshold.
  • the update module 11 is configured to update the correspondence between the service service type and the resource block according to the division update information.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the above software functional unit is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform the methods of the various embodiments of the present invention. Part of the steps.
  • the foregoing storage medium includes: a USB flash drive, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, and the like can store program codes. Medium.

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Abstract

本发明提供一种设备发现方法及终端。所述方法包括：获取业务服务类型及资源块的对应关系；根据所述业务服务类型及资源块的对应关系，获取需求业务服务所属业务服务类型对应的第一资源块；监听所述第一资源块上广播的设备发现信号；其中，所述第一资源块上广播的设备发现信号为提供所述业务服务类型服务的终端在所述第一资源块上广播的。

Description

设备发现方法及终端
本申请要求于 2012 年 12 月 26 日提交中国专利局、 申请号为 201210575700.4、 发明名称为 "设备发现方法及终端" 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
本发明涉及通信技术， 尤其涉及一种设备发现方法及终端。 背景技术
随着通信技术的不断发展，目前的大多数移动设备终端都运用了例如蓝牙 以及 WI-FI等各种各样的无线技术。 这些技术的应用让运营商意识到在移动设 备之间设备到设备（Device-to-Device , 简称 D2D ) 的直接的通信在未来将会 变得炙手可热。 D2D通信的关键技术之一就是设备发现。 所谓设备发现就是一 个设备要发现周围其他的设备， 同时也要让周围的设备发现本设备的存在状 态。
高通的 D2D (亦或称为 FlashLinQ ) 系统是一种结合同步技术和 OFDM ( Orthogonal Frequency Division Multiplexing, 正交频分复用技术 ), 且在专有 频谱上完成通信过程的通信系统。 FlashLinQ通信系统中的终端间进行直通连 接包括四个阶段， 分别为： 同步阶段、 设备发现阶段、 寻呼阶段和连接阶段。 其中， 在设备发现阶段， FlashLinQ通信系统中每个终端能够周期性的搜索到 附近周围大约 lkm以内的其他终端， 同时终端会周期性的广播自己的设备发现 信号。现有技术中， 系统中提供各种业务服务类型的所有终端都是随机选择空 闲资源进行设备发现信号的广播。当系统中某一终端需求某类型业务服务时就 需要监听时频资源上的所有设备发现信号， 包括有用以及没用的信号， 才能找 到提供自己所需业务服务类型的终端， 以进一步与该终端建立直通连接， 这样 终端就存在着严重的功耗浪费。 发明内容
本发明的多个方面提供一种设备发现方法及终端，用以减少终端的功耗浪 费。
本发明的一方面， 是提供一种设备发现方法， 包括：
获取业务服务类型及资源块的对应关系；
根据所述业务服务类型及资源块的对应关系，获取需求业务服务所属业务 服务类型对应的第一资源块；
监听所述第一资源块上广播的设备发现信号； 其中， 所述第一资源块上广 播的设备发现信号为提供所述业务服务类型服务的终端在所述第一资源块上 广播的。
如上所述的设备发现方法， 还包括：
根据所述业务服务类型及资源块的对应关系，获取待提供业务服务所属业 务服务类型对应的第二资源块；
在所述第二资源块的空闲资源上广播设备发现信号。
如上所述的设备发现方法， 还包括：
向基站发送携带有待提供业务服务所属业务服务类型的请求信息，以使所 述基站根据业务服务类型及资源块的对应关系 ,获取所述待提供业务服务所属 业务服务类型对应第二资源块中的空闲资源 ,并返回携带有所述空闲资源的响 应信息， 其中， 所述业务服务类型及资源块的对应关系为所述基站将设备发现 资源划分成至少两个资源块， 并为各资源块设置对应的业务服务类型后生成 的；
根据所述响应信息， 在所述空闲资源上广播设备发现信号。
如上所述的设备发现方法，所述获取业务服务类型及资源块的对应关系之 前， 还包括：
接收基站广播的携带有所述业务服务类型及资源块的对应关系的划分信 息， 其中， 所述业务服务类型及资源块的对应关系为所述基站将设备发现资源 划分成至少两个资源块， 并为各资源块设置对应的业务服务类型后生成的； 存储所述业务服务类型及资源块的对应关系。
如上所述的设备发现方法， 还包括：
接收基站广播的划分更新信息 ,所述划分更新信息为所述基站根据监测到 的各资源块的资源利用率，将资源利用率低于预设阔值的资源块的空闲资源划 分至资源利用率高于预设阔值的资源块后生成的；
根据所述划分更新信息， 更新所述业务服务类型及资源块的对应关系。 本发明的另一方面， 是提供一种终端， 其特征在于， 包括：
第一获取模块， 用于获取业务服务类型及资源块的对应关系；
第二获取模块， 用于根据所述业务服务类型及资源块的对应关系， 获取需 求业务 Λ良务所属业务 ^良务类型对应的第一资源块；
监听模块， 用于监听所述第一资源块上广播的设备发现信号； 其中， 所述 第一资源块上广播的设备发现信号为提供所述业务服务类型服务的终端在所 述第一资源块上广播的。
如上所述的终端， 还包括：
第三获取模块， 用于根据所述业务服务类型及资源块的对应关系， 获取待 提供业务服务所属业务服务类型对应的第二资源块；
第一广播模块， 用于在所述第二资源块的空闲资源上广播设备发现信号。 如上所述的终端， 还包括：
发送模块，用于向基站发送携带有待提供业务服务所属业务服务类型的请 求信息， 以使所述基站根据业务服务类型及资源块的对应关系， 获取所述待提 供业务服务所属业务服务类型对应第二资源块中的空闲资源，并返回携带有所 述空闲资源的响应信息， 其中， 所述业务服务类型及资源块的对应关系为所述 基站将设备发现资源划分成至少两个资源块，并为各资源块设置对应的业务服 务类型后生成的；
第二广播模块， 用于根据所述响应信息，在所述空闲资源上广播设备发现 信号。
如上所述的终端， 还包括：
第一接收模块，用于接收基站广播的携带有所述业务服务类型及资源块的 对应关系的划分信息， 其中， 所述业务服务类型及资源块的对应关系为所述基 站将设备发现资源划分成至少两个资源块，并为各资源块设置对应的业务服务 类型后生成的；
存储模块， 用于存储所述业务服务类型及资源块的对应关系。
如上所述的终端， 还包括： 第二接收模块， 用于接收基站广播的划分更新信息， 所述划分更新信息为 所述基站根据监测到的各资源块的资源利用率，将资源利用率低于预设阔值的 资源块的空闲资源划分至资源利用率高于预设阔值的资源块后生成的；
更新模块， 用于根据所述划分更新信息， 更新所述业务服务类型及资源块 的对应关系。
由上述技术方案可知， 本发明实施例通过将时频资源划分为多个资源块， 每个资源块对应一种业务服务类型，使得终端仅在自己关注的业务服务类型的 资源块的空闲资源上广播设备发现信号，仅监听自己关注的业务服务类型的资 源块上的设备发现信号，无需监听其他不关注业务服务类型资源块上的设备发 现信号， 这样可以有效的减少终端的功耗浪费。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施 例或现有技术描述中所需要使用的附图作一简单地介绍， 显而易见地， 下面描 述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出 创造性劳动性的前提下， 还可以根据这些附图获得其他的附图。
图 1为本发明提供的设备发现方法实施例一的流程示意图；
图 2为本发明提供的终端广播设备发现信号的一具体实施例的流程示意 图；
图 3为本发明提供的终端广播设备发现信号的另一具体实施例的流程示意 图；
图 4为本发明提供的所述设备发现方法实施例二的流程示意图；
图 5为本发明提供的所述设备发现方法实施例三的流程示意图；
图 6为本发明提供的所述设备发现方法实施例四的流程示意图；
图 7为本发明提供的终端实施例一的结构示意图；
图 8为本发明提供的终端实施例二的结构示意图；
图 9为本发明提供的终端实施例三的结构示意图；
图 10为本发明提供的终端实施例四的结构示意图。 具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚， 下面将结合本发明 实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然， 所描述的实施例是本发明一部分实施例， 而不是全部的实施例。基于本发明中 的实施例 ,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其 他实施例， 都属于本发明保护的范围。
如图 1所示， 本发明提供的设备发现方法实施例一的流程示意图。 如图所 示， 本实施例一所述的方法包括：
步骤 101、 终端获取业务服务类型及资源块的对应关系。
其中， 所述业务服务类型及资源块的对应关系可以是终端预先存储的， 即
D2D通信系统中的每个终端中均预存储有该业务服务类型及资源块的对应关 系。或者， 所述业务服务类型及资源块的对应关系还可以根据接收自基站广播 的划分信息获得并存储。 具体地， 本步骤所述终端获取业务服务类型及资源块 的对应关系之前， 还包括： 首先， 所述接收基站广播的携带有所述业务服务类 型及资源块的对应关系的划分信息， 其中， 所述业务服务类型及资源块的对应 关系为所述基站将设备发现资源划分成至少两个资源块，并为各资源块设置对 应的业务服务类型后生成的。 然后， 所述终端存储所述划分信息携带的所述业 务服务类型及资源块的对应关系。
步骤 102、 所述终端根据所述业务服务类型及资源块的对应关系， 获取需 求业务 Λ良务所属业务 ^良务类型对应的第一资源块。
例如， 业务服务类型包括： 广告服务类型、 交友服务类型、 二手产品服务 类型、 游戏服务类型、 电影服务类型等中的任意两种或任意两种以上的组合。 此时， 若所述终端需求的业务服务为交友服务， 则所述终端根据所述业务服务 类型及资源块的对应关系， 获取交友服务类型对应的资源块。
步骤 103、 所述终端监听所述第一资源块上广播的设备发现信号； 其中， 所述第一资源块上广播的设备发现信号为提供所述业务服务类型服务的终端 在所述第一资源块上广播的。
其中，所述提供所述业务服务类型服务的终端广播设备发现信号的过程可 以釆用如下过程实现， 如图 2所示， 包括： 步骤 1031、所述提供所述业务服务类型服务的终端根据存储的业务服务类 型及资源块的对应关系，获取待提供业务服务类型所属业务服务类型对应的所 述第一资源块。
步骤 1032、所述提供所述业务服务类型服务的终端在所述第一资源块的空 闲资源上广播设备所述设备发现信号。
上述广播设备发现信号的过程为终端根据存储的业务服务类型及资源块 的对应关系自主的进行设备发现信号的广播的实现实例。
或者，所述提供所述业务服务类型服务的终端广播设备发现信号的过程还 可以釆用如下过程实现， 如图 3所示， 包括：
步骤 1033、所述提供所述业务服务类型服务的终端向基站发送携带有待提 供服务所属业务服务类型的请求信息，以使所述基站根据业务服务类型及资源 块的对应关系，获取所述待提供业务服务所属业务服务类型对应第一资源块中 的空闲资源， 并返回携带有所述空闲资源的响应信息， 其中， 所述业务服务类 型及资源块的对应关系为所述基站将设备发现资源划分成至少两个资源块，并 为各资源块设置对应的业务服务类型后生成的。
步骤 1034、 所述提供所述业务服务类型服务的终端根据所述响应信息， 在 所述空闲资源上广播设备发现信号。
上述广播设备发现信号的过程为通过基站来为终端分配相应的空闲资源 , 所述终端在基站分配的空闲资源上广播设备发现信号。由于釆用上述通过基站 分配资源的方式来实现设备发现信号的广播，基站可获得各资源块的资源利用 情况， 进而可实现对各资源块的资源利用率的监测， 当某一资源块的资源利用 率大于预设阔值时，所述基站就将资源块利用率低于预设阔值的部分空闲资源 划分至资源利用率大于预设阔值的资源块，以避免资源利用率大于预设阔值的 资源块内部干扰太大。具体地，所述基站根据监测到的各资源块的资源利用率， 将资源利用率低于预设阔值的资源块的空闲资源划分至资源利用率高于预设 阔值的资源块， 并在划分后生成划分更新信息。 所述基站广播所述划分更新信 息， 以使能接收到所述划分更新信息的终端， 根据所述划分更新信息， 更新存 储的所述业务服务类型及资源块的对应关系 ,进而终端即可根据更新后的业务 服务类型及资源块的对应关系监听需求业务服务所属业务服务类型对应的资 源块上的设备信息。
釆用上述公开的终端设备发现信号广播的技术方案，保证了提供相同业务 服务类型服务的终端在同一资源块上广播设备发现信号，便于需求该业务服务 类型业务服务的终端仅监听其所关注的业务服务类型的终端广播的设备发现 信号，进而解决了现有技术中终端需监听时频资源上所有设备发现信号而造成 的功耗浪费大的问题。
本实施例通过将时频资源划分为多个资源块，每个资源块对应一种业务服 务类型，使得终端仅在自己关注的业务服务类型的资源块的空闲资源上广播设 备发现信号，仅监听自己关注的业务服务类型的资源块上的设备发现信号， 无 需监听其他不关注业务服务类型资源块上的设备发现信号，这样可以有效的减 少终端的功耗浪费。
进一步地， 如图 4所示， 本发明提供的所述设备发现方法实施例二的流程 示意图。上述实施例一为所述终端需求某一业务服务类型的业务服务时监听该 业务服务类型对应资源块上的设备发现信号的过程。本实施例二基于上述实施 例一，提供了当所述终端欲提供某项业务服务类型的业务服务时， 终端广播设 备发现信号的过程， 包括：
步骤 201、 所述终端根据所述业务服务类型及资源块的对应关系， 获取待 提供业务服务所属业务服务类型对应的第二资源块。
例如， 业务服务类型包括： 广告服务类型、 交友服务类型、 二手产品服务 类型、 游戏服务类型、 电影服务类型等中的任意两种或任意两种以上的组合。 系统中的所有终端均存储有相同的业务服务类型及资源块的对应关系。 或者， 所述基站根据所述业务服务类型包括的类型个数， 将时频资源进行划分， 并为 划分后的各资源块设置对应的业务服务类型，生成所述业务服务类型及资源块 的对应关系。 所述基站将所述业务服务类型及资源块的对应关系进行广播， 以 使各终端存储所述业务服务类型及资源块的对应关系。例如， 所述终端当前欲 发送一则广告信息。 所述终端根据所述业务服务类型及资源块的对应关系， 获 取待提供广告信息所属的广告服务类型对应的资源块。
步骤 202、 所述终端在所述第二资源块的空闲资源上广播设备发现信号。 或者， 如图 5所示， 本发明提供的所述设备发现方法实施例三的流程示意 图。上述实施例一为所述终端需求业务服务时监听相应资源块上的设备发现信 号的过程。 本实施例三基于上述实施例一，提供了当所述终端欲提供某项业务 服务时， 终端广播设备发现信号的过程， 包括：
步骤 301、 所述终端向基站发送携带有待提供业务服务所属业务服务类型 的请求信息， 以使所述基站根据业务服务类型及资源块的对应关系， 获取所述 待提供业务服务所属业务服务类型对应第二资源块中的空闲资源 ,并返回携带 有所述空闲资源的响应信息， 其中， 所述业务服务类型及资源块的对应关系为 所述基站将设备发现资源划分成至少两个资源块，并为各资源块设置对应的业 务服务类型后生成的。
步骤 302、 所述终端根据所述响应信息， 在所述空闲资源上广播设备发现 信号。
本实施例三提供的广播设备发现信号的过程为通过基站来为终端分配相 应的空闲资源， 所述终端在基站分配的空闲资源上广播设备发现信号。 由于釆 用上述通过基站分配资源的方式来实现设备发现信号的广播，基站可获得各资 源块的资源利用情况， 进而可实现对各资源块的资源利用率的监测， 当某一资 源块的资源利用率大于预设阔值时，所述基站就将资源块利用率低于预设阔值 的部分空闲资源划分至资源利用率大于预设阔值的资源块，以避免资源利用率 大于预设阔值的资源块内部干扰太大。 进一步地， 上述实施例三， 如图 6所示， 还包括：
步骤 303、 所述终端接收所述基站广播的划分更新信息， 所述划分更新信 息为所述基站根据监测到的各资源块的资源利用率，将资源利用率低于预设阔 值的资源块的空闲资源划分至资源利用率高于预设阔值的资源块后生成的。
步骤 304、 所述终端根据所述划分更新信息， 更新所述业务服务类型及资 源块的对应关系。
如图 7所示， 本发明提供的终端实施例一的结构示意图。 如图所示， 本实 施例所述终端包括： 第一获取模块 1、 第二获取模块 2和监听模块 3。 其中， 所 述第一获取模块 1用于获取业务服务类型及资源块的对应关系。 所述第二获取 模块 2用于根据所述业务服务类型及资源块的对应关系， 获取需求业务服务所 属业务服务类型对应的第一资源块。 所述监听模块 3用于监听所述第一资源块 上广播的设备发现信号； 其中， 所述第一资源块上广播的设备发现信号为提供 所述业务服务类型服务的终端在所述第一资源块上广播的。
本发明实施例通过将时频资源划分为多个资源块，每个资源块对应一种业 务服务类型，使得终端仅在自己关注的业务服务类型的资源块的空闲资源上广 播设备发现信号， 仅监听自己关注的业务服务类型的资源块上的设备发现信 号， 无需监听其他不关注业务服务类型资源块上的设备发现信号， 这样可以有 效的减少终端的功耗浪费。
如图 8所示，本发明提供的所述终端的实施例二的结构示意图。如图 8所示， 本实施例二所述的终端除包括上述实施例一所述的各模块外，还包括： 第三获 取模块 4和第一广播模块 5。 其中， 所述第三获取模块 4用于根据所述业务服务 类型及资源块的对应关系，获取待提供业务服务所属业务服务类型对应的第二 资源块。 所述广播模块 5用于在所述第二资源块的空闲资源上广播设备发现信 号。
进一步地， 如图 8所示， 实施例二所述的终端还包括： 第一接收模块 6和存 储模块 7。所述第一接收模块 6用于接收基站广播的携带有所述业务服务类型及 资源块的对应关系的划分信息， 其中， 所述业务服务类型及资源块的对应关系 为所述基站将设备发现资源划分成至少两个资源块，并为各资源块设置对应的 业务服务类型后生成的。 所述存储模块 7用于存储所述业务服务类型及资源块 的对应关系。
如图 9所示， 本发明提供的所述终端实施例三的结构示意图。 如图所示， 本实施例三所述的终端除包括上述实施例一所述的各模块外，还包括： 发送模 块 8和第二广播模块 9。 其中， 所述发送模块 8用于向基站发送携带有待提供业 务服务所属业务服务类型的请求信息，以使所述基站根据业务服务类型及资源 块的对应关系，获取所述待提供业务服务所属业务服务类型对应第二资源块中 的空闲资源， 并返回携带有所述空闲资源的响应信息， 其中， 所述业务服务类 型及资源块的对应关系为所述基站将设备发现资源划分成至少两个资源块，并 为各资源块设置对应的业务服务类型后生成的。 所述第二广播模块 9用于根据 所述响应信息， 在所述空闲资源上广播设备发现信号。
进一步地， 如图 10所示， 上述实施例三所述的终端还包括： 第一接收模块 6和存储模块 7。 其中， 所述第一接收模块 6用于接收基站广播的携带有所述业 务服务类型及资源块的对应关系的划分信息， 其中， 所述业务服务类型及资源 块的对应关系为所述基站将设备发现资源划分成至少两个资源块，并为各资源 块设置对应的业务服务类型后生成的。 所述存储模块 7用于存储所述业务服务 类型及资源块的对应关系。
再进一步地， 如图 10所示， 上述实施例三所述终端还包括： 第二接收模块 10和更新模块 11。 其中， 所述第二接收模块 10用于接收基站广播的划分更新信 息， 所述划分更新信息为所述基站根据监测到的各资源块的资源利用率，将资 源利用率低于预设阔值的资源块的空闲资源划分至资源利用率高于预设阔值 的资源块后生成的。 所述更新模块 11用于根据所述划分更新信息， 更新所述业 务服务类型及资源块的对应关系。
所属领域的技术人员可以清楚地了解到， 为描述的方便和简洁， 上述各实 施例描述的各模块的具体工作过程， 可以参考前述方法实施例中的对应过程， 在此不再赘述。
另外， 在本发明各个实施例中的各功能单元可以集成在一个处理单元中， 也可以是各个单元单独物理存在 ,也可以两个或两个以上单元集成在一个单元 中。上述集成的单元既可以釆用硬件的形式实现， 也可以釆用硬件加软件功能 单元的形式实现。
上述以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可 读取存储介质中。 上述软件功能单元存储在一个存储介质中， 包括若干指令用 以使得一台计算机设备（可以是个人计算机， 服务器， 或者网络设备等）或处 理器（processor )执行本发明各个实施例所述方法的部分步骤。 而前述的存储 介质包括： U盘、 移动硬盘、 只读存储器（ Read-Only Memory, 简称 ROM )、 随机存取存储器（ Random Access Memory, 简称 RAM )、 磁碟或者光盘等各种 可以存储程序代码的介质。
最后应说明的是： 以上实施例仅用以说明本发明的技术方案， 而非对其限 制； 尽管参照前述实施例对本发明进行了详细的说明， 本领域的普通技术人员 应当理解： 其依然可以对前述各实施例所记载的技术方案进行修改， 或者对其 中部分技术特征进行等同替换； 而这些修改或者替换， 并不使相应技术方案的 本质脱离本发明各实施例技术方案的精神和范围。
+

Claims

权 利 要 求
1、 一种设备发现方法， 其特征在于， 包括：
获取业务服务类型及资源块的对应关系；
根据所述业务服务类型及资源块的对应关系，获取需求业务服务所属业务 服务类型对应的第一资源块；
监听所述第一资源块上广播的设备发现信号； 其中， 所述第一资源块上广 播的设备发现信号为提供所述业务服务类型服务的终端在所述第一资源块上 广播的。
2、 根据权利要求 1所述的设备发现方法， 其特征在于， 还包括： 根据所述业务服务类型及资源块的对应关系，获取待提供业务服务所属业 务服务类型对应的第二资源块；
在所述第二资源块的空闲资源上广播设备发现信号。
3、 根据权利要求 1所述的设备发现方法， 其特征在于， 还包括： 向基站发送携带有待提供业务服务所属业务服务类型的请求信息，以使所 述基站根据业务服务类型及资源块的对应关系 ,获取所述待提供业务服务所属 业务服务类型对应第二资源块中的空闲资源 ,并返回携带有所述空闲资源的响 应信息， 其中， 所述业务服务类型及资源块的对应关系为所述基站将设备发现 资源划分成至少两个资源块， 并为各资源块设置对应的业务服务类型后生成 的；
根据所述响应信息， 在所述空闲资源上广播设备发现信号。
4、 根据权利要求 1或 3所述的设备发现方法， 其特征在于， 所述获取业 务服务类型及资源块的对应关系之前， 还包括：
接收基站广播的携带有所述业务服务类型及资源块的对应关系的划分信 息， 其中， 所述业务服务类型及资源块的对应关系为所述基站将设备发现资源 划分成至少两个资源块， 并为各资源块设置对应的业务服务类型后生成的； 存储所述业务服务类型及资源块的对应关系。
5、 根据权利要求 1、 3或 4中任一所述的设备发现方法， 其特征在于， 还 包括：
接收基站广播的划分更新信息 ,所述划分更新信息为所述基站根据监测到 的各资源块的资源利用率，将资源利用率低于预设阔值的资源块的空闲资源划 分至资源利用率高于预设阔值的资源块后生成的；
根据所述划分更新信息， 更新所述业务服务类型及资源块的对应关系。
6、 一种终端， 其特征在于， 包括：
第一获取模块， 用于获取业务服务类型及资源块的对应关系；
第二获取模块， 用于根据所述业务服务类型及资源块的对应关系， 获取需 求业务 Λ良务所属业务 ^良务类型对应的第一资源块；
监听模块， 用于监听所述第一资源块上广播的设备发现信号； 其中， 所述 第一资源块上广播的设备发现信号为提供所述业务服务类型服务的终端在所 述第一资源块上广播的。
7、 根据权利要求 6所述的终端， 其特征在于， 还包括：
第三获取模块， 用于根据所述业务服务类型及资源块的对应关系， 获取待 提供业务服务所属业务服务类型对应的第二资源块；
第一广播模块， 用于在所述第二资源块的空闲资源上广播设备发现信号。
8、 根据权利要求 6所述的终端， 其特征在于， 还包括：
发送模块，用于向基站发送携带有待提供业务服务所属业务服务类型的请 求信息， 以使所述基站根据业务服务类型及资源块的对应关系， 获取所述待提 供业务服务所属业务服务类型对应第二资源块中的空闲资源，并返回携带有所 述空闲资源的响应信息， 其中， 所述业务服务类型及资源块的对应关系为所述 基站将设备发现资源划分成至少两个资源块，并为各资源块设置对应的业务服 务类型后生成的；
第二广播模块， 用于根据所述响应信息，在所述空闲资源上广播设备发现 信号。
9、 根据权利要求 6或 8所述的终端， 其特征在于， 还包括：
第一接收模块，用于接收基站广播的携带有所述业务服务类型及资源块的 对应关系的划分信息， 其中， 所述业务服务类型及资源块的对应关系为所述基 站将设备发现资源划分成至少两个资源块，并为各资源块设置对应的业务服务 类型后生成的；
存储模块， 用于存储所述业务服务类型及资源块的对应关系。
10、 根据权利要求 6、 8或 9中任一所述的终端， 其特征在于， 还包括： 第二接收模块， 用于接收基站广播的划分更新信息， 所述划分更新信息为 所述基站根据监测到的各资源块的资源利用率，将资源利用率低于预设阔值的 资源块的空闲资源划分至资源利用率高于预设阔值的资源块后生成的；
更新模块， 用于根据所述划分更新信息， 更新所述业务服务类型及资 源块的对应关系。
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