WO2014019447A1

WO2014019447A1 - Frequency selection method, user equipment, and base station

Info

Publication number: WO2014019447A1
Application number: PCT/CN2013/079276
Authority: WO
Inventors: 冯淑兰; 刘劲楠; 周晗
Original assignee: 华为技术有限公司
Priority date: 2012-08-02
Filing date: 2013-07-12
Publication date: 2014-02-06
Also published as: CN103581919A

Abstract

Disclosed are a frequency selection method, user equipment, and base station, the method comprising: detecting the downlink received signal strength of at least two downlink frequencies of one or more cells; acquiring a second user communication frequency determined based on the downlink received signal strength of the at least two downlink frequencies, the second user communication frequency being an uplink frequency corresponding to a downlink frequency in the at least two downlink frequencies having minimum downlink received signal strength or maximum downlink path loss, and the second user communication representing the other communications conducted in a frequency band shared with an authorized user. By determining an uplink frequency corresponding to a downlink frequency in the at least two downlink frequencies having minimum downlink received signal strength or maximum downlink path loss as a second user communication frequency, the frequency selection method, user equipment, and base station in an embodiment of the present invention can reduce the interference of the second user communication on cell communication, thus ensuring the quality of the second user communication and cell communication.

Description

频率选择的方法、用户 i殳备和基站本申请要求于 2012 年 8 月 2 日提交中国专利局、申请号为 201210273224.0、发明名称为"频率选择的方法、用户设备和基站"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领域，并且更具体地，涉及频率选择的方法、用户设备和基站。背景技术传统的蜂窝网络中，两个终端通信的数据需要经过基站转发，从终端 1 发给终端 2的通信数据，首先需要先由终端 1发给基站，基站将数据包发送给核心网的交换机，交换机将数据传回终端 2的服务基站，由终端 2的服务基站将终端 1发给终端 2的数据发给终端 2。如果两个通信终端距离较远，则这种方案比较可行；但如果通信双方距离较近，相互在对方的通信范围内，则若数据包直接由终端 1发给终端 2, 不经过基站转发，可以节省一半的资源。 Method for frequency selection, user equipment and base station This application claims to be filed on August 2, 2012 in Chinese Patent Application No. 201210273224.0, entitled "Frequency Selection Method, User Equipment and Base Station" Priority is hereby incorporated by reference in its entirety. TECHNICAL FIELD The present invention relates to the field of communications, and more particularly to a method of frequency selection, a user equipment, and a base station. BACKGROUND In a traditional cellular network, data communicated by two terminals needs to be forwarded by a base station, and communication data sent from the terminal 1 to the terminal 2 first needs to be sent by the terminal 1 to the base station, and the base station sends the data packet to the switch of the core network. The switch transmits the data back to the serving base station of the terminal 2, and the serving base station of the terminal 2 sends the data sent by the terminal 1 to the terminal 2 to the terminal 2. If the two communication terminals are far apart, this scheme is more feasible; but if the two communication parties are close to each other and are within the communication range of the other party, if the data packet is directly sent by the terminal 1 to the terminal 2, it is not forwarded by the base station. Can save half of the resources.

终端与终端之间的直接通信（筒称 D2D通信， Device to Device,设备到设备)能够使终端设备之间直接通信而不需要任何中间的基础设施。因此，终端设备的直接通信能够更高效率的利用频谱资源，提高蜂窝网容量，减少基站控制信令的开销，是一项能给蜂窝网通信带来巨大利益的技术。 Direct communication between the terminal and the terminal (D2D communication, Device to Device, device to device) enables direct communication between the terminal devices without any intermediate infrastructure. Therefore, the direct communication of the terminal device can utilize the spectrum resource more efficiently, increase the capacity of the cellular network, and reduce the overhead of the base station control signaling, which is a technology that can bring great benefits to the cellular network communication.

与任何无线通信一样，终端与终端之间的通信需要一定的无线频谱承载。一种 D2D与蜂窝通信的频谱共享方式中， D2D通信终端使用服务基站的上行频率， D2D通信通过时分或者频分的方式使用服务基站的一部分或者全部上行频率，或者在不干扰基站上行接收的情况下，与蜂窝通信共享全部或者部分上行频率。例如，基站 BS1的上行频率为 fl_u , 终端 D_UE1 和 D_UE2都接入到 BS1 , 并且建立了 D_UE1与 D_UE2之间的 D2D通信， D_UE1与 DJJE2之间的 D2D通信与 BS1的蜂窝通信共享上行频率 fl_u。由于 D2D通信在服务基站覆盖范围内，或者非常接近服务基站的覆盖范围， D2D通信与服务基站蜂窝通信之间的干扰较大。发明内容 As with any wireless communication, communication between the terminal and the terminal requires a certain radio spectrum bearer. In the spectrum sharing mode of D2D and cellular communication, the D2D communication terminal uses the uplink frequency of the serving base station, and the D2D communication uses part or all of the uplink frequency of the serving base station by means of time division or frequency division, or does not interfere with the uplink reception of the base station. Next, share all or part of the upstream frequency with cellular communication. For example, the uplink frequency of the base station BS1 is fl_u, and the terminal D_UE1 Both D_UE2 and B_1 are connected to BS1, and D2D communication between D_UE1 and D_UE2 is established, and D2D communication between D_UE1 and DJJE2 shares uplink frequency fl_u with cellular communication of BS1. Since the D2D communication is within the coverage of the serving base station, or very close to the coverage of the serving base station, the interference between the D2D communication and the serving base station cellular communication is large. Summary of the invention

本发明实施例提供了一种频率选择的方法、用户设备和基站，能够降低 D2D通信对小区通信的干扰。 Embodiments of the present invention provide a frequency selection method, a user equipment, and a base station, which can reduce interference of D2D communication to cell communication.

第一方面，提供了一种频率选择的方法，包括：检测一个或多个小区的至少两个下行频率的下行接收信号强度；获取基于该至少两个下行频率的下行接收信号强度确定的第二用户通信频率，该第二用户通信频率为该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率，该第二用户通信表示共享授权用户频段进行的其它通信。 In a first aspect, a method for frequency selection is provided, including: detecting downlink received signal strengths of at least two downlink frequencies of one or more cells; and acquiring second determined downlink received signal strengths based on the at least two downlink frequencies The user communication frequency, the second user communication frequency is an uplink frequency corresponding to a downlink frequency with a minimum downlink received signal strength or a downlink path loss being the largest in the at least two downlink frequencies, and the second user communication indicates another communication performed by sharing the authorized user frequency band .

在第一种可能的实现方式中，获取基于该至少两个下行频率的下行接收信号强度确定的第二用户通信频率，具体实现为：将该至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率确定为该第二用户通信频率。 In a first possible implementation, the second user communication frequency that is determined based on the downlink received signal strength of the at least two downlink frequencies is obtained, where the downlink communication signal strength of the at least two downlink frequencies is minimized. The uplink frequency corresponding to the frequency is determined as the second user communication frequency.

在第二种可能的实现方式中，结合第一方面的第一种可能的实现方式，将该至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率确定为该第二用户通信频率，具体实现为：若该至少两个下行频率中的第一频率只对应一个小区，则将该第一频率对应的小区的下行接收信号强度作为该第一频率的下行接收信号强度；若该至少两个下行频率中的第二频率对应多个小区，则将该第二频率对应的多个小区的下行接收信号强度中的最大值作为该第二频率的下行接收信号强度，或者，将该第二频率对应的多个小区的下行接收信号强度之和作为该第二频率的下行接收信号强度，或者，将该第二频率对应的多个小区的下行接收信号强度的平均值作为该第二频率的下行接收信号强度；若该至少两个下行频率中的第三频率没有检测到任何小区，则将该第三频率的下行接收信号强度设置为最小；将该至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率作为该第二用户通信频率。 In a second possible implementation manner, in combination with the first possible implementation manner of the first aspect, determining an uplink frequency corresponding to a downlink frequency that minimizes a downlink received signal strength in the at least two downlink frequencies as the second user communications The frequency is specifically implemented as follows: if the first frequency of the at least two downlink frequencies corresponds to only one cell, the downlink received signal strength of the cell corresponding to the first frequency is used as the downlink received signal strength of the first frequency; If the second frequency of the at least two downlink frequencies corresponds to the multiple cells, the maximum value of the downlink received signal strengths of the multiple cells corresponding to the second frequency is used as the downlink received signal strength of the second frequency, or The sum of downlink received signal strengths of the plurality of cells corresponding to the second frequency is strong as the downlink received signal of the second frequency Or, the average value of the downlink received signal strengths of the plurality of cells corresponding to the second frequency is used as the downlink received signal strength of the second frequency; if the third frequency of the at least two downlink frequencies does not detect any cell And the downlink received signal strength of the third frequency is set to a minimum; and the uplink frequency corresponding to the downlink frequency with the lowest downlink received signal strength of the at least two downlink frequencies is used as the second user communication frequency.

在第三种可能的实现方式中，获取基于该至少两个下行频率的下行接收信号强度确定的第二用户通信频率，具体实现为：根据该至少两个下行频率的下行接收信号强度，确定该至少两个下行频率的下行路径损耗；将该至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率确定为该第二用户通信频率。 In a third possible implementation manner, the second user communication frequency determined by the downlink received signal strengths of the at least two downlink frequencies is obtained, where the method is: determining, according to the downlink received signal strengths of the at least two downlink frequencies, The downlink path loss of the at least two downlink frequencies; determining the uplink frequency corresponding to the downlink frequency with the largest downlink path loss in the at least two downlink frequencies as the second user communication frequency.

在第四种可能的实现方式中，结合第一方面的第三种可能的实现方式，将该至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率确定为该第二用户通信频率，具体实现为：若该至少两个下行频率中的第一频率只对应一个小区，则将该第一频率对应的小区的下行路径损耗作为该第一频率的下行路径损耗；若该至少两个下行频率中的第二频率对应多个小区，则将该第二频率对应的多个小区的下行路径损耗中的最小值作为该第二频率的下行路径损耗，或者，将该第二频率对应的多个小区的下行路径损耗的平均值作为该第二频率的下行路径损耗；若该至少两个下行频率中的第三频率没有检测到任何小区，则将该第三频率的下行路径损耗设置为最大；将该至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率作为该第二用户通信频率。 In a fourth possible implementation manner, in combination with the third possible implementation manner of the first aspect, determining, by using the uplink frequency corresponding to the downlink frequency with the largest downlink path loss in the at least two downlink frequencies, the second user communication frequency The specific implementation is as follows: if the first frequency of the at least two downlink frequencies corresponds to only one cell, the downlink path loss of the cell corresponding to the first frequency is used as the downlink path loss of the first frequency; If the second frequency in the downlink frequency corresponds to multiple cells, the minimum value of the downlink path loss of the multiple cells corresponding to the second frequency is used as the downlink path loss of the second frequency, or the second frequency is corresponding to the second frequency. The average value of the downlink path loss of the multiple cells is used as the downlink path loss of the second frequency; if the third frequency of the at least two downlink frequencies does not detect any cell, the downlink path loss of the third frequency is set to The maximum frequency corresponding to the downlink frequency at which the downlink path loss is the largest among the at least two downlink frequencies is used as the first User communication frequency.

在第五种可能的实现方式中，结合第一方面的第三种或第四种可能的实现方式，该方法还包括：从网络侧获取该一个或多个小区的发射信号强度；根据该至少两个下行频率的下行接收信号强度，确定该至少两个下行频率的下行路径损耗，具体实现为：根据该一个或多个小区的发射信号强度和该至少两个下行频率的下行接收信号强度，确定该至少两个下行频率的下行路径损耗。 In a fifth possible implementation, in combination with the third or fourth possible implementation manner of the first aspect, the method further includes: acquiring, by the network side, a transmit signal strength of the one or more cells; The downlink received signal strengths of the two downlink frequencies are determined, and the downlink path loss of the at least two downlink frequencies is determined by: according to the transmit signal strength of the one or more cells and the downlink received signal strength of the at least two downlink frequencies, Determining the at least two downlink frequencies Downlink path loss.

在第六种可能的实现方式中，结合第一方面或第一方面的第一种或第二种或第三种或第四种或第五种可能的实现方式，该方法还包括：从网络侧获取该一个或多个小区的列表和该至少两个下行频率的列表。 In a sixth possible implementation, in combination with the first or second or third or fourth or fifth possible implementation of the first aspect, the method further includes: The side acquires a list of the one or more cells and a list of the at least two downlink frequencies.

在第七种可能的实现方式中，结合第一方面或第一方面的第一种或第二种或第三种或第四种或第五种或第六种可能的实现方式，该第二用户通信为 D2D通信；该方法还包括：将该第二用户通信频率发送给基站，以便于该基站将该第二用户通信频率发送给该 D2D通信的其他用户设备。 In a seventh possible implementation, the first or second or third or fourth or fifth or sixth possible implementation of the first aspect or the first aspect, the second The user communication is D2D communication; the method further includes: transmitting the second user communication frequency to the base station, so that the base station sends the second user communication frequency to other user equipments of the D2D communication.

在第八种可能的实现方式中，结合第一方面的第七种可能的实现方式，该方法还包括：选择服务小区的帧定时作为该 D2D通信的定时基准。 In an eighth possible implementation, in combination with the seventh possible implementation of the first aspect, the method further includes: selecting a frame timing of the serving cell as a timing reference of the D2D communication.

在第九种可能的实现方式中，在获取基于该至少两个下行频率的下行接收信号强度确定的第二用户通信频率之前，该方法还包括：向基站发送该至少两个下行频率的下行接收信号强度；获取基于该至少两个下行频率的下行接收信号强度确定的第二用户通信频率，具体实现为：接收该基站发送的该第二用户通信频率，其中，该第二用户通信频率为该基站根据该至少两个下行频率的下行接收信号强度确定的该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率。 In a ninth possible implementation manner, before acquiring the second user communication frequency determined by the downlink received signal strengths of the at least two downlink frequencies, the method further includes: transmitting, by the base station, downlink reception of the at least two downlink frequencies The second user communication frequency determined by the downlink received signal strength based on the at least two downlink frequencies is obtained by: receiving the second user communication frequency sent by the base station, where the second user communication frequency is And determining, by the base station, an uplink frequency corresponding to a downlink frequency with a minimum downlink signal strength or a downlink path loss maximum in the at least two downlink frequencies determined according to the downlink received signal strengths of the at least two downlink frequencies.

在第十种可能的实现方式中，结合第一方面的第九种可能的实现方式，该第二用户通信为 D2D通信；该第二用户通信频率为该基站根据该 D2D 通信双方发送的该至少两个下行频率的下行接收信号强度确定的该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率。 In a tenth possible implementation manner, in combination with the ninth possible implementation manner of the first aspect, the second user communication is D2D communication; the second user communication frequency is that the base station sends the at least one of the D2D communication The uplink frequency corresponding to the downlink frequency with the lowest downlink received signal strength or the downlink path loss with the lowest downlink signal loss determined by the downlink received signal strength of the two downlink frequencies.

第二方面，提供了一种频率选择的方法，包括：接收用户设备发送的一个或多个小区的至少两个下行频率的下行接收信号强度；根据该至少两个下行频率的下行接收信号强度，确定第二用户通信频率，该第二用户通信频率为该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率，该第二用户通信表示共享授权用户频段进行的其它通信；将该第二用户通信频率发送给该用户设备。 In a second aspect, a method for frequency selection is provided, including: receiving downlink downlink signal strengths of at least two downlink frequencies of one or more cells sent by a user equipment; and determining downlink downlink signal strengths according to the at least two downlink frequencies, Determining a second user communication frequency, where the second user communication frequency is a minimum downlink signal strength or a downlink path loss in the at least two downlink frequencies The uplink frequency corresponding to the largest downlink frequency, the second user communication indicates that other communication is performed by sharing the authorized user frequency band; and the second user communication frequency is sent to the user equipment.

在第一种可能的实现方式中，根据该至少两个下行频率的下行接收信号强度，确定第二用户通信频率，具体实现为：将该至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率确定为该第二用户通信频率。 In a first possible implementation manner, the second user communication frequency is determined according to the downlink received signal strength of the at least two downlink frequencies, where the downlink frequency of the downlink received signal strength is minimized in the at least two downlink frequencies. The corresponding uplink frequency is determined as the second user communication frequency.

在第二种可能的实现方式中，根据该至少两个下行频率的下行接收信号强度，确定第二用户通信频率，具体实现为：根据该至少两个下行频率的下行接收信号强度，确定该至少两个下行频率的下行路径损耗；将该至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率确定为该第二用户通信频率。 In a second possible implementation manner, determining a second user communication frequency according to the downlink received signal strengths of the at least two downlink frequencies, where: determining, according to the downlink received signal strengths of the at least two downlink frequencies, determining the at least The downlink path loss of the two downlink frequencies; determining the uplink frequency corresponding to the downlink frequency with the largest downlink path loss in the at least two downlink frequencies as the second user communication frequency.

在第三种可能的实现方式中，结合第二方面的第二种可能的实现方式，该方法还包括：获取该一个或多个小区的发射信号强度；根据该至少两个下行频率的下行接收信号强度，确定该至少两个下行频率的下行路径损耗，具体实现为：根据该一个或多个小区的发射信号强度和该至少两个下行频率的下行接收信号强度，确定该至少两个下行频率的下行路径损耗。 In a third possible implementation, in combination with the second possible implementation of the second aspect, the method further includes: acquiring a transmit signal strength of the one or more cells; and receiving downlink according to the at least two downlink frequencies The signal strength is determined by determining the downlink path loss of the at least two downlink frequencies, where the at least two downlink frequencies are determined according to the transmit signal strength of the one or more cells and the downlink received signal strength of the at least two downlink frequencies. Downlink path loss.

在第四种可能的实现方式中，结合第二方面或第二方面的第一种或第二种或第三种可能的实现方式，该第二用户通信为 D2D通信；根据该至少两个下行频率的下行接收信号强度，确定第二用户通信频率，具体实现为：根据该 D2D通信双方发送的该至少两个下行频率的下行接收信号强度，确定该第二用户通信频率。 In a fourth possible implementation, in combination with the second aspect or the first or second or third possible implementation manner of the second aspect, the second user communication is D2D communication; according to the at least two downlinks The downlink received signal strength of the frequency determines the second user communication frequency, and is specifically implemented as: determining the second user communication frequency according to the downlink received signal strengths of the at least two downlink frequencies sent by the D2D communication parties.

第三方面，提供了一种用户设备，包括：接收模块，用于检测一个或多个小区的至少两个下行频率的下行接收信号强度；获取模块，用于获取基于该至少两个下行频率的下行接收信号强度确定的第二用户通信频率，该第二用户通信频率为该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率，该第二用户通信表示共享授权用户频段进行的其它通信。 In a third aspect, a user equipment is provided, including: a receiving module, configured to detect downlink received signal strengths of at least two downlink frequencies of one or more cells; and an acquiring module, configured to acquire, based on the at least two downlink frequencies a second user communication frequency determined by the downlink received signal strength, where the second user communication frequency is an uplink frequency corresponding to a downlink frequency with the lowest downlink received signal strength or the downlink path loss being the largest in the at least two downlink frequencies, the second user communication representation Sharing Other communications performed by the authorized user band.

在第一种可能的实现方式中，该获取模块包括：第一获取单元，用于将该至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率确定为该第二用户通信频率。 In a first possible implementation manner, the acquiring module includes: a first acquiring unit, configured to determine, as the second user communication frequency, an uplink frequency corresponding to a downlink frequency that minimizes a downlink received signal strength of the at least two downlink frequencies .

在第二种可能的实现方式中，结合第三方面的第一种可能的实现方式，该第一获取单元还用于，若该至少两个下行频率中的第一频率只对应一个小区，则将该第一频率对应的小区的下行接收信号强度作为该第一频率的下行接收信号强度；若该至少两个下行频率中的第二频率对应多个小区，则将该第二频率对应的多个小区的下行接收信号强度中的最大值作为该第二频率的下行接收信号强度，或者，将该第二频率对应的多个小区的下行接收信号强度之和作为该第二频率的下行接收信号强度，或者，将该第二频率对应的多个小区的下行接收信号强度的平均值作为该第二频率的下行接收信号强度；若该至少两个下行频率中的第三频率没有检测到任何小区，则将该第三频率的下行接收信号强度设置为最小；将该至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率作为该第二用户通信频率。 In a second possible implementation manner, in combination with the first possible implementation manner of the third aspect, the first acquiring unit is further configured to: if the first frequency of the at least two downlink frequencies corresponds to only one cell, The downlink received signal strength of the cell corresponding to the first frequency is used as the downlink received signal strength of the first frequency; if the second frequency of the at least two downlink frequencies corresponds to multiple cells, the second frequency is correspondingly The maximum value of the downlink received signal strengths of the cells is used as the downlink received signal strength of the second frequency, or the sum of the downlink received signal strengths of the plurality of cells corresponding to the second frequency is used as the downlink received signal of the second frequency. The strength, or the average value of the downlink received signal strengths of the plurality of cells corresponding to the second frequency is used as the downlink received signal strength of the second frequency; if the third frequency of the at least two downlink frequencies does not detect any cell , the downlink received signal strength of the third frequency is set to a minimum; and the at least two downlink frequencies are downlink received signals. The uplink frequency corresponding to the downlink frequency having the smallest intensity is used as the second user communication frequency.

在第三种可能的实现方式中，该获取模块包括：第二获取单元，用于根据该至少两个下行频率的下行接收信号强度，确定该至少两个下行频率的下行路径损耗；将该至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率确定为该第二用户通信频率。 In a third possible implementation, the acquiring module includes: a second acquiring unit, configured to determine downlink path loss of the at least two downlink frequencies according to downlink received signal strengths of the at least two downlink frequencies; The uplink frequency corresponding to the downlink frequency with the largest downlink path loss in the two downlink frequencies is determined as the second user communication frequency.

在第四种可能的实现方式中，结合第三方面的第三种可能的实现方式，该第二获取单元还用于，若该至少两个下行频率中的第一频率只对应一个小区，则将该第一频率对应的小区的下行路径损耗作为该第一频率的下行路径损耗；若该至少两个下行频率中的第二频率对应多个小区，则将该第二频率对应的多个小区的下行路径损耗中的最小值作为该第二频率的下行路径损耗，或者，将该第二频率对应的多个小区的下行路径损耗的平均值作为该第二频率的下行路径损耗；若该至少两个下行频率中的第三频率没有检测到任何小区，则将该第三频率的下行路径损耗设置为最大；将该至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率作为该第二用户通信频率。 In a fourth possible implementation, in combination with the third possible implementation manner of the third aspect, the second acquiring unit is further configured to: if the first frequency of the at least two downlink frequencies corresponds to only one cell, The downlink path loss of the cell corresponding to the first frequency is used as the downlink path loss of the first frequency; if the second frequency of the at least two downlink frequencies corresponds to multiple cells, the multiple cells corresponding to the second frequency are used. The minimum value of the downlink path loss is the downlink path loss of the second frequency, or the average value of the downlink path loss of the plurality of cells corresponding to the second frequency. As a downlink path loss of the second frequency; if no cell is detected in the third frequency of the at least two downlink frequencies, setting a downlink path loss of the third frequency to a maximum; The uplink frequency corresponding to the downlink frequency with the largest downlink path loss is used as the second user communication frequency.

在第五种可能的实现方式中，结合第三方面的第三种或第四种可能的实现方式，该接收模块还用于从网络侧获取该一个或多个小区的发射信号强度；该第二获取单元还用于，根据该一个或多个小区的发射信号强度和该至少两个下行频率的下行接收信号强度，确定该至少两个下行频率的下行路径损耗。 In a fifth possible implementation, in combination with the third or fourth possible implementation manner of the third aspect, the receiving module is further configured to acquire, by using a network side, a transmit signal strength of the one or more cells; The acquiring unit is further configured to determine, according to the transmit signal strength of the one or more cells and the downlink received signal strength of the at least two downlink frequencies, a downlink path loss of the at least two downlink frequencies.

在第六种可能的实现方式中，结合第三方面或第三方面的第一种或第二种或第三种或第四种或第五种可能的实现方式，该接收模块还用于从网络侧获取该一个或多个小区的列表和该至少两个下行频率的列表。 In a sixth possible implementation, in combination with the first or second or third or fourth or fifth possible implementation of the third aspect or the third aspect, the receiving module is further configured to The network side acquires a list of the one or more cells and a list of the at least two downlink frequencies.

在第七种可能的实现方式中，结合第三方面或第三方面的第一种或第二种或第三种或第四种或第五种或第六种可能的实现方式，该第二用户通信为 D2D通信；该用户设备还包括：第一发送模块，用于将该第二用户通信频率发送给基站，以便于该基站将该第二用户通信频率发送给该 D2D通信的其他用户设备。 In a seventh possible implementation, the first or second or third or fourth or fifth or sixth possible implementation of the third aspect or the third aspect, the second The user communication is D2D communication; the user equipment further includes: a first sending module, configured to send the second user communication frequency to the base station, so that the base station sends the second user communication frequency to the other user equipment of the D2D communication .

在第八种可能的实现方式中，结合第三方面的第七种可能的实现方式，该用户设备还包括：定时确定模块，用于选择服务小区的帧定时作为该 D2D 通信的定时基准。 In an eighth possible implementation, in combination with the seventh possible implementation manner of the third aspect, the user equipment further includes: a timing determining module, configured to select a frame timing of the serving cell as a timing reference of the D2D communication.

在第九种可能的实现方式中，该用户设备还包括：第二发送模块，用于向基站发送该至少两个下行频率的下行接收信号强度；该接收模块还用于接收该基站发送的该第二用户通信频率，其中，该第二用户通信频率为该基站根据该至少两个下行频率的下行接收信号强度确定的该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率；该获取模块包括：第三获取单元，用于获取该接收模块接收的该基站发送的该第二用户通信频率。 In a ninth possible implementation manner, the user equipment further includes: a second sending module, configured to send, to the base station, a downlink received signal strength of the at least two downlink frequencies; the receiving module is further configured to receive the a second user communication frequency, wherein the second user communication frequency is a downlink in which the downlink received signal strength is the smallest or the downlink path loss is the largest among the at least two downlink frequencies determined by the base station according to the downlink received signal strengths of the at least two downlink frequencies The uplink frequency corresponding to the frequency; the acquiring module includes: a third acquiring unit, configured to acquire, received by the receiving module The second user communication frequency sent by the base station.

在第十种可能的实现方式中，结合第三方面的第九种可能的实现方式，该第二用户通信为 D2D通信；该第二用户通信频率为该基站根据该 D2D 通信双方发送的该至少两个下行频率的下行接收信号强度确定的该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率。 In a tenth possible implementation manner, in combination with the ninth possible implementation manner of the third aspect, the second user communication is D2D communication; the second user communication frequency is that the base station sends the at least one of the D2D communication The uplink frequency corresponding to the downlink frequency with the lowest downlink received signal strength or the downlink path loss with the lowest downlink signal loss determined by the downlink received signal strength of the two downlink frequencies.

第四方面，提供了一种基站，包括：接收模块，用于接收用户设备发送的一个或多个小区的至少两个下行频率的下行接收信号强度；确定模块，用于根据该至少两个下行频率的下行接收信号强度，确定第二用户通信频率，该第二用户通信频率为该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率，该第二用户通信表示共享授权用户频段进行的其它通信；发送模块，用于将该第二用户通信频率发送给该用户设备。 The fourth aspect provides a base station, including: a receiving module, configured to receive downlink received signal strengths of at least two downlink frequencies of one or more cells sent by the user equipment; and a determining module, configured to perform, according to the at least two downlinks The downlink received signal strength of the frequency determines a second user communication frequency, and the second user communication frequency is an uplink frequency corresponding to a downlink frequency with a minimum downlink received signal strength or a downlink path loss maximum in the at least two downlink frequencies, the second user The communication indicates that the communication is performed by the shared user band; the sending module is configured to send the second user communication frequency to the user equipment.

在第一种可能的实现方式中，该确定模块包括：第一确定单元，用于将该至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率确定为该第二用户通信频率。 In a first possible implementation manner, the determining module includes: a first determining unit, configured to determine, as the second user communication frequency, an uplink frequency corresponding to a downlink frequency that minimizes a downlink received signal strength of the at least two downlink frequencies .

在第二种可能的实现方式中，该确定模块包括：第二确定单元，用于根据该至少两个下行频率的下行接收信号强度，确定该至少两个下行频率的下行路径损耗；将该至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率确定为该第二用户通信频率。 In a second possible implementation, the determining module includes: a second determining unit, configured to determine downlink path loss of the at least two downlink frequencies according to downlink received signal strengths of the at least two downlink frequencies; The uplink frequency corresponding to the downlink frequency with the largest downlink path loss in the two downlink frequencies is determined as the second user communication frequency.

在第三种可能的实现方式中，结合第四方面的第二种可能的实现方式，该基站还包括：获取模块，用于获取该一个或多个小区的发射信号强度；该第二确定单元还用于根据该一个或多个小区的发射信号强度和该至少两个下行频率的下行接收信号强度，确定该至少两个下行频率的下行路径损耗。 In a third possible implementation, in combination with the second possible implementation of the fourth aspect, the base station further includes: an acquiring module, configured to acquire a transmit signal strength of the one or more cells; And configured to determine a downlink path loss of the at least two downlink frequencies according to a transmit signal strength of the one or more cells and a downlink received signal strength of the at least two downlink frequencies.

在第四种可能的实现方式中，结合第四方面或第四方面的第一种或第二种或第三种可能的实现方式，该第二用户通信为 D2D通信；该确定模块还用于根据该 D2D通信双方发送的该至少两个下行频率的下行接收信号强度，确定该第二用户通信频率。 In a fourth possible implementation, the fourth or fourth aspect is combined with the first or the fourth The second or third possible implementation manner, the second user communication is D2D communication; the determining module is further configured to determine the second user according to the downlink received signal strength of the at least two downlink frequencies sent by the two D2D communication parties Communication frequency.

基于上述技术方案，本发明实施例的频率选择的方法、用户设备和基站，通过将至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率确定为第二用户通信频率，可以降低第二用户通信对小区通信的干扰，从而能够保证第二用户通信和小区通信的质量。附图说明为了更清楚地说明本发明实施例的技术方案，下面将对本发明实施例中所需要使用的附图作筒单地介绍，显而易见地，下面描述中的附图仅仅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的前提下，还可以根据这些附图获得其他的附图。 Based on the foregoing technical solution, the frequency selection method, the user equipment, and the base station in the embodiment of the present invention determine the uplink frequency corresponding to the downlink frequency with the minimum downlink signal strength or the downlink path loss of at least two downlink frequencies as the second user. The communication frequency can reduce the interference of the second user communication to the cell communication, thereby ensuring the quality of the second user communication and the cell communication. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments of the present invention will be briefly described below. Obviously, the drawings in the following description are only some of the present invention. For the embodiments, those skilled in the art can obtain other drawings according to the drawings without any creative work.

图 1是根据本发明实施例的频率选择的方法的示意性流程图。 1 is a schematic flow chart of a method of frequency selection according to an embodiment of the present invention.

图 2是根据本发明实施例的频率选择的方法的另一示意性流程图。图 3是根据本发明实施例的频率选择的方法的再一示意性流程图。图 4是根据本发明实施例的频率选择的方法的再一示意性流程图。图 5是根据本发明实施例的一个场景的示意图。 2 is another schematic flowchart of a method of frequency selection according to an embodiment of the present invention. FIG. 3 is still another schematic flowchart of a method of frequency selection according to an embodiment of the present invention. 4 is still another schematic flowchart of a method of frequency selection according to an embodiment of the present invention. Figure 5 is a schematic illustration of a scene in accordance with an embodiment of the present invention.

图 6是根据本发明另一实施例的频率选择的方法的示意性流程图。图 7是根据本发明实施例的用户设备的示意性框图。 6 is a schematic flow chart of a method of frequency selection according to another embodiment of the present invention. FIG. 7 is a schematic block diagram of a user equipment according to an embodiment of the present invention.

图 8是根据本发明实施例的获取模块的示意性框图。 FIG. 8 is a schematic block diagram of an acquisition module according to an embodiment of the present invention.

图 9是根据本发明实施例的用户设备的另一示意性框图。 FIG. 9 is another schematic block diagram of a user equipment according to an embodiment of the present invention.

图 10是根据本发明实施例的基站的示意性框图。 FIG. 10 is a schematic block diagram of a base station according to an embodiment of the present invention.

图 11是根据本发明另一实施例的用户设备的示意性框图。 FIG. 11 is a schematic block diagram of a user equipment according to another embodiment of the present invention.

图 12是根据本发明另一实施例的基站的示意性框图。具体实施方式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的一部分实施例，而不是全部实施例。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的前提下所获得的所有其他实施例，都应属于本发明保护的范围。 FIG. 12 is a schematic block diagram of a base station according to another embodiment of the present invention. The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, but not all embodiments. . All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of the present invention.

应理解，本发明实施例的技术方案可以应用于各种通信***，例如：全球移动通讯 ( Global System of Mobile communication, 筒称为 "GSM" ) ***、码分多址 ( Code Division Multiple Access , 筒称为 "CDMA" ) ***、宽带码分多址（ Wideband Code Division Multiple Access,筒称为 "WCDMA" ) ***、通用分组无线业务（ General Packet Radio Service, 筒称为 "GPRS" )、长期演进（Long Term Evolution, 筒称为 "LTE" ) ***、 LTE 频分双工 ( Frequency Division Duplex, 筒称为 "FDD" )***、 LTE 时分双工（Time Division Duplex, 筒称为 "TDD" )、通用移动通信***（ Universal Mobile Telecommunication System,筒称为 "UMTS" )、全球互联微波接入（ Worldwide Interoperability for Microwave Access, 筒称为 "WiMAX" )通信***等。 It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication systems, such as: Global System of Mobile communication ("GSM") system, code division multiple access (Code Division Multiple Access) Called "CDMA") system, Wideband Code Division Multiple Access ("WCDMA") system, General Packet Radio Service ("General Packet Radio Service"), Long Term Evolution ( Long Term Evolution, the tube is called "LTE" system, LTE frequency division duplex (Frequency Division Duplex) system, LTE time division duplex (Time Division Duplex, "TDD"), general purpose A mobile communication system (Unicom Mobile Telecommunication System, referred to as "UMTS"), a Worldwide Interoperability for Microwave Access ("USB") communication system, and the like.

还应理解，在本发明实施例中，用户设备 ( User Equipment, 筒称为 "UE" )可称之为终端（ Terminal )、移动台（ Mobile Station, 筒称为 "MS" )、移动终端（ Mobile Terminal )等，该用户设备可以经无线接入网（ Radio Access Network, 筒称为 "RAN" ) 与一个或多个核心网进行通信，例如，用户设备可以是移动电话（或称为 "蜂窝，，电话）、具有移动终端的计算机等，例如，用户设备还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语音和 /或数据。 It should also be understood that, in the embodiment of the present invention, a user equipment (User Equipment, referred to as "UE") may be referred to as a terminal, a mobile station (Mobile Station, referred to as "MS"), and a mobile terminal ( Mobile Terminal), etc., the user equipment can communicate with one or more core networks via a Radio Access Network ("RAN"), for example, the user equipment can be a mobile phone (or "cellular" , a telephone, a computer with a mobile terminal, etc., for example, the user device can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges voice and/or data with the wireless access network.

在本发明实施例中，基站可以是 GSM 或 CDMA 中的基站（Base In the embodiment of the present invention, the base station may be a base station in GSM or CDMA (Base

Transceiver Station, 筒称为 "BTS" ),也可以是 WCDMA中的基站（ NodeB, 筒称为 "NB" ), 还可以是 LTE中的演进型基站（ Evolutional Node B , 筒称为 'ΈΝΒ或 e-NodeB" ), 本发明并不限定。但为描述方便，下述实施例将以基站 ENB和用户设备 UE为例进行说明。 Transceiver Station, called "BTS", or a base station in WCDMA (NodeB, The cartridge is called "NB"), and may also be an evolved Node B (called "ΈΝΒ or e-NodeB" in LTE), which is not limited by the present invention. However, for convenience of description, the following embodiments will The base station ENB and the user equipment UE are taken as an example for description.

图 1示出了根据本发明实施例的频率选择的方法 100的示意性流程图。该方法 100由 UE执行。如图 1所示，该方法 100包括： FIG. 1 shows a schematic flow diagram of a method 100 of frequency selection in accordance with an embodiment of the present invention. The method 100 is performed by a UE. As shown in FIG. 1, the method 100 includes:

S110,检测一个或多个小区的至少两个下行频率的下行接收信号强度； S110. Detect a downlink received signal strength of at least two downlink frequencies of one or more cells.

S120, 获取基于该至少两个下行频率的下行接收信号强度确定的第二用户通信频率，该第二用户通信频率为该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率，该第二用户通信表示共享授权用户频段进行的其它通信。 S120. Obtain a second user communication frequency determined according to the downlink received signal strength of the at least two downlink frequencies, where the second user communication frequency is a downlink frequency with a minimum downlink received signal strength or a downlink path loss maximum in the at least two downlink frequencies. The corresponding uplink frequency, the second user communication indicates that other communications performed by the shared user band are shared.

在本发明实施例中，第二用户通信表示共享授权用户频段进行的其它通信，可以是设备之间的直接通信，如 D2D通信，也可以是其他通信，如广播通信，接入通信等。为了降低第二用户通信对小区通信的干扰， UE检测一个或多个小区的至少两个下行频率的下行接收信号强度，该至少两个下行频率可以为一个小区的多个下行频率，也可以为多个小区的多个下行频率，可选地， UE可以从网络侧获取该一个或多个小区的列表和该至少两个下行频率的列表，然后 UE获取该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率，以该上行频率进行第二用户通信。小区下行频率的下行接收信号强度最小或者下行路径损耗最大表明小区在该下行频率上与 UE之间的干扰强度最小，因此，选择该下行频率对应的上行频率作为第二用户通信频率进行第二用户通信对小区通信的干扰会比较小。 In the embodiment of the present invention, the second user communication indicates that other communication performed by the shared authorized user frequency band may be direct communication between devices, such as D2D communication, or other communication, such as broadcast communication, access communication, and the like. In order to reduce the interference of the second user communication to the cell communication, the UE detects the downlink received signal strength of the at least two downlink frequencies of the one or more cells, where the at least two downlink frequencies may be multiple downlink frequencies of one cell, or may be Multiple downlink frequencies of multiple cells, optionally, the UE may obtain a list of the one or more cells and a list of the at least two downlink frequencies from the network side, and then the UE acquires downlink receiving signals in the at least two downlink frequencies. The uplink frequency corresponding to the downlink frequency with the smallest intensity or the largest downlink path loss, and the second user communication is performed at the uplink frequency. The downlink received signal strength of the downlink frequency of the cell is the smallest or the downlink path loss is the largest, indicating that the interference strength between the cell and the UE is the smallest. Therefore, the uplink frequency corresponding to the downlink frequency is selected as the second user communication frequency for the second user. The interference of communication to cell communication will be relatively small.

因此，本发明实施例的频率选择的方法，通过将至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率确定为第二用户通信频率，可以降低第二用户通信对小区通信的干扰，从而能够保证第二用户通信和小区通信的质量。在本发明实施例中，如图 2所示，可选地， S120包括：Therefore, the method for frequency selection in the embodiment of the present invention can reduce the second user by determining the uplink frequency corresponding to the downlink frequency with the lowest downlink received signal strength or the downlink path loss of at least two downlink frequencies as the second user communication frequency. Communication interferes with cell communication, thereby ensuring the quality of the second user communication and cell communication. In the embodiment of the present invention, as shown in FIG. 2, optionally, S120 includes:

S121 , 将该至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率确定为该第二用户通信频率。 S121. Determine an uplink frequency corresponding to a downlink frequency that minimizes a downlink received signal strength of the at least two downlink frequencies as the second user communication frequency.

UE根据检测的该至少两个下行频率的下行接收信号强度，选择下行接收信号强度最小的下行频率对应的上行频率作为第二用户通信频率。 The UE selects an uplink frequency corresponding to the downlink frequency with the lowest downlink received signal strength as the second user communication frequency according to the detected downlink received signal strengths of the at least two downlink frequencies.

例如， UE检测多个频率的蜂窝小区的下行信号到达 UE的信号强度，假设检测下行频率 fl_d, f2_d, f3_d到达 UE的信号强度分别为 Rl , R2, R3; UE选择下行接收信号强度作为干扰强度指示， UE选择到达 UE信号强度最小的下行频率所对应的上行频率作为 D2D 通信频率。假设 R1>R2>R3 , 则终端选择 f3_d对应的上行频率 f3_u作为 D2D通信频率。 For example, the UE detects the signal strength of the downlink signal of the cell of the multiple frequencies to the UE, and assumes that the downlink signal fl_d, f2_d, and f3_d reach the UE with signal strengths R1, R2, and R3, respectively; and the UE selects the downlink received signal strength as the interference strength. It is indicated that the UE selects the uplink frequency corresponding to the downlink frequency with the smallest UE signal strength as the D2D communication frequency. Assuming that R1>R2>R3, the terminal selects the uplink frequency f3_u corresponding to f3_d as the D2D communication frequency.

可选地， S121包括： Optionally, S121 includes:

若该至少两个下行频率中的第一频率只对应一个小区，则将该第一频率对应的小区的下行接收信号强度作为该第一频率的下行接收信号强度；若该至少两个下行频率中的第二频率对应多个小区，则将该第二频率对应的多个小区的下行接收信号强度中的最大值作为该第二频率的下行接收信号强度，或者，将该第二频率对应的多个小区的下行接收信号强度之和作为该第二频率的下行接收信号强度，或者，将该第二频率对应的多个小区的下行接收信号强度的平均值作为该第二频率的下行接收信号强度；若该至少两个下行频率中的第三频率没有检测到任何小区，则将该第三频率的下行接收信号强度设置为最小； If the first frequency of the at least two downlink frequencies corresponds to only one cell, the downlink received signal strength of the cell corresponding to the first frequency is used as the downlink received signal strength of the first frequency; if the at least two downlink frequencies are The second frequency corresponds to the plurality of cells, and the maximum value of the downlink received signal strengths of the plurality of cells corresponding to the second frequency is used as the downlink received signal strength of the second frequency, or the second frequency is correspondingly The sum of the downlink received signal strengths of the cells is used as the downlink received signal strength of the second frequency, or the average of the downlink received signal strengths of the plurality of cells corresponding to the second frequency is used as the downlink received signal strength of the second frequency. And if the third frequency of the at least two downlink frequencies does not detect any cell, setting the downlink received signal strength of the third frequency to a minimum;

将该至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率作为该第二用户通信频率。 The uplink frequency corresponding to the downlink frequency at which the downlink received signal strength of the at least two downlink frequencies is the smallest is used as the second user communication frequency.

具体而言， UE可以检测每个下行频率对应的多个小区。若该至少两个下行频率中的一个频率（用第一频率表示）只对应一个小区，即该第一频率上只检测到一个小区，则将该第一频率对应的小区的下行接收信号强度作为该第一频率的下行接收信号强度。若该至少两个下行频率中的一个频率（用第二频率表示）对应多个小区，即该第二频率上检测到多个小区，则将该第二频率对应的多个小区的下行接收信号强度中的最大值或该第二频率对应的多个小区的下行接收信号强度之和或该第二频率对应的多个小区的下行接收信号强度的平均值作为该第二频率的下行接收信号强度，也就是说，选择该第二频率对应的多个小区的下行接收信号强度中的最大值或该第二频率对应的多个小区的下行接收信号强度之和或该第二频率对应的多个小区的下行接收信号强度的平均值作为干扰强度指示。若该至少两个下行频率中的一个频率（用第三频率表示）没有检测到任何小区，则将该第三频率的下行接收信号强度设置为最小，即可以认为该第三频率的干扰强度最小。然后， UE再从该至少两个下行频率中选择下行接收信号强度最小的下行频率，将其对应的上行频率作为第二用户通信频率。 Specifically, the UE may detect multiple cells corresponding to each downlink frequency. If one of the at least two downlink frequencies (represented by the first frequency) corresponds to only one cell, that is, only one cell is detected on the first frequency, the downlink received signal strength of the cell corresponding to the first frequency is used as The downlink received signal strength of the first frequency. If one of the at least two downlink frequencies The rate (indicated by the second frequency) corresponds to a plurality of cells, that is, the plurality of cells are detected on the second frequency, and the maximum value of the downlink received signal strengths of the plurality of cells corresponding to the second frequency or the second frequency The average of the downlink received signal strengths of the corresponding multiple cells or the average of the downlink received signal strengths of the multiple cells corresponding to the second frequency is used as the downlink received signal strength of the second frequency, that is, the second frequency is selected. And a maximum value of the downlink received signal strengths of the corresponding multiple cells or a downlink received signal strength of the plurality of cells corresponding to the second frequency or an average of downlink received signal strengths of the plurality of cells corresponding to the second frequency Interference intensity indication. If one of the at least two downlink frequencies (represented by the third frequency) does not detect any cell, the downlink received signal strength of the third frequency is set to a minimum, that is, the interference strength of the third frequency may be considered to be the smallest . Then, the UE selects a downlink frequency with the lowest downlink received signal strength from the at least two downlink frequencies, and uses the corresponding uplink frequency as the second user communication frequency.

这样，本发明实施例的频率选择的方法，通过将至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率确定为第二用户通信频率，可以降低第二用户通信对小区通信的干扰，从而能够保证第二用户通信和小区通信的质量。 In this way, the method for frequency selection in the embodiment of the present invention can reduce the second user communication to the cell communication by determining the uplink frequency corresponding to the downlink frequency with the minimum downlink received signal strength of at least two downlink frequencies as the second user communication frequency. Interference, thereby ensuring the quality of the second user communication and cell communication.

在本发明实施例中，如图 3所示，可选地， S120包括： In the embodiment of the present invention, as shown in FIG. 3, optionally, S120 includes:

5122, 根据该至少两个下行频率的下行接收信号强度，确定该至少两个下行频率的下行路径损耗； S122: Determine downlink path loss of the at least two downlink frequencies according to the downlink received signal strengths of the at least two downlink frequencies.

5123, 将该至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率确定为该第二用户通信频率。 5123. Determine an uplink frequency corresponding to a downlink frequency with a maximum downlink path loss in the at least two downlink frequencies as the second user communication frequency.

也就是说， UE选择下行路径损耗作为干扰强度指示。 UE先根据检测的该至少两个下行频率的下行接收信号强度，确定该至少两个下行频率的下行路径损耗，再选择下行路径损耗最大的下行频率对应的上行频率作为第二用户通信频率。 That is, the UE selects the downlink path loss as the interference strength indication. The UE first determines the downlink path loss of the at least two downlink frequencies according to the detected downlink received signal strengths of the at least two downlink frequencies, and selects the uplink frequency corresponding to the downlink frequency with the largest downlink path loss as the second user communication frequency.

可选地，该方法 100还包括： Optionally, the method 100 further includes:

从网络侧获取该一个或多个小区的发射信号强度； S122包括： Obtaining a transmit signal strength of the one or more cells from a network side; S122 includes:

根据该一个或多个小区的发射信号强度和该至少两个下行频率的下行接收信号强度，确定该至少两个下行频率的下行路径损耗。 And determining a downlink path loss of the at least two downlink frequencies according to a transmit signal strength of the one or more cells and a downlink received signal strength of the at least two downlink frequencies.

在选择下行路径损耗作为干扰强度指示时， UE从网络侧获取待测小区的发射信号强度，根据小区的发射信号强度和下行接收信号强度计算下行路径损耗。例如，下行路径损耗可以为发射信号强度减去下行接收信号强度。 When the downlink path loss is selected as the interference strength indication, the UE obtains the transmit signal strength of the cell to be tested from the network side, and calculates the downlink path loss according to the transmit signal strength of the cell and the downlink received signal strength. For example, the downlink path loss can be the transmitted signal strength minus the downlink received signal strength.

可选地， S123包括： Optionally, S123 includes:

若该至少两个下行频率中的第一频率只对应一个小区，则将该第一频率对应的小区的下行路径损耗作为该第一频率的下行路径损耗； If the first frequency of the at least two downlink frequencies corresponds to only one cell, the downlink path loss of the cell corresponding to the first frequency is used as the downlink path loss of the first frequency;

若该至少两个下行频率中的第二频率对应多个小区，则将该第二频率对应的多个小区的下行路径损耗中的最小值作为该第二频率的下行路径损耗，或者，将该第二频率对应的多个小区的下行路径损耗的平均值作为该第二频率的下行路径损耗； If the second frequency of the at least two downlink frequencies corresponds to the multiple cells, the minimum value of the downlink path losses of the multiple cells corresponding to the second frequency is used as the downlink path loss of the second frequency, or The average value of the downlink path loss of the plurality of cells corresponding to the second frequency is used as the downlink path loss of the second frequency;

若该至少两个下行频率中的第三频率没有检测到任何小区，则将该第三频率的下行路径损耗设置为最大； If no cell is detected in the third frequency of the at least two downlink frequencies, setting a downlink path loss of the third frequency to a maximum;

将该至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率作为该第二用户通信频率。 The uplink frequency corresponding to the downlink frequency having the largest downlink path loss among the at least two downlink frequencies is used as the second user communication frequency.

具体而言， UE可以检测每个下行频率对应的多个小区。若该至少两个下行频率中的一个频率（用第一频率表示）只对应一个小区，即该第一频率上只检测到一个小区，则将该第一频率对应的小区的下行路径损耗作为该第一频率的下行路径损耗。若该至少两个下行频率中的一个频率（用第二频率表示）对应多个小区，即该第二频率上检测到多个小区，则将该第二频率对应的多个小区的下行路径损耗中的最小值或该第二频率对应的多个小区的下行路径损耗的平均值作为该第二频率的下行路径损耗，也就是说，选择该第二频率对应的多个小区的下行路径损耗中的最小值或该第二频率对应的多个小区的下行路径损耗的平均值作为干扰强度指示。若该至少两个下行频率中的一个频率（用第三频率表示）没有检测到任何小区，则将该第三频率的下行路径损耗设置为最大，即可以认为该第三频率的干扰强度最小。然后， UE再从该至少两个下行频率中选择下行路径损耗最大的下行频率，将其对应的上行频率作为第二用户通信频率。 Specifically, the UE may detect multiple cells corresponding to each downlink frequency. If one of the at least two downlink frequencies (represented by the first frequency) corresponds to only one cell, that is, only one cell is detected on the first frequency, the downlink path loss of the cell corresponding to the first frequency is used as the Downlink path loss at the first frequency. If one of the at least two downlink frequencies (represented by the second frequency) corresponds to multiple cells, that is, multiple cells are detected on the second frequency, downlink path loss of multiple cells corresponding to the second frequency The minimum value of the minimum value or the downlink path loss of the plurality of cells corresponding to the second frequency is used as the downlink path loss of the second frequency, that is, selecting the downlink path loss of the multiple cells corresponding to the second frequency. Minimum or second The average value of the downlink path loss of the plurality of cells corresponding to the frequency is used as the interference strength indication. If one of the at least two downlink frequencies (represented by the third frequency) does not detect any cell, the downlink path loss of the third frequency is set to a maximum, that is, the interference strength of the third frequency may be considered to be the smallest. Then, the UE selects the downlink frequency with the largest downlink path loss from the at least two downlink frequencies, and uses the corresponding uplink frequency as the second user communication frequency.

这样，本发明实施例的频率选择的方法，通过将至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率确定为第二用户通信频率，可以降低第二用户通信对小区通信的干扰，从而能够保证第二用户通信和小区通信的质量。 In this way, the frequency selection method in the embodiment of the present invention can reduce the interference of the second user communication to the cell communication by determining the uplink frequency corresponding to the downlink frequency with the largest downlink path loss in the at least two downlink frequencies as the second user communication frequency. Thereby, the quality of the second user communication and the cell communication can be guaranteed.

可选地，当 UE要进行 D2D通信时，即该第二用户通信为 D2D通信时， UE还可以将该第二用户通信频率（此时为 D2D通信频率）发送给基站，以便于该基站将该第二用户通信频率发送给该 D2D通信的其他用户设备。也就是说， UE可以将选择的 D2D通信频率上报服务小区，服务小区可以进一步的将 UE所选择的 D2D通信频率通知 D2D通信对中的一个或者多个 UE。 Optionally, when the UE is to perform D2D communication, that is, when the second user communication is D2D communication, the UE may further send the second user communication frequency (in this case, a D2D communication frequency) to the base station, so that the base station will The second user communication frequency is sent to other user equipments of the D2D communication. That is, the UE may report the selected D2D communication frequency to the serving cell, and the serving cell may further notify the one or more UEs in the D2D communication pair of the D2D communication frequency selected by the UE.

可选地， UE可以选择服务小区的帧定时作为 D2D通信的定时基准。例如，不论 UE是否选择服务基站的上行频率作为 D2D通信频率， UE都选择服务小区的帧定时作为 D2D通信的定时基准。 Alternatively, the UE may select the frame timing of the serving cell as a timing reference for D2D communication. For example, regardless of whether the UE selects the uplink frequency of the serving base station as the D2D communication frequency, the UE selects the frame timing of the serving cell as the timing reference for D2D communication.

在本发明实施例中，除了 UE自己选择第二用户通信频率外， UE还可以通过基站选择第二用户通信频率。因此，如图 4所示，可选地，在 S120 之前，该方法 100还包括： In the embodiment of the present invention, in addition to the UE selecting the second user communication frequency, the UE may also select the second user communication frequency by using the base station. Therefore, as shown in FIG. 4, optionally, before S120, the method 100 further includes:

S130, 向基站发送该至少两个下行频率的下行接收信号强度； S130. Send, to the base station, downlink received signal strengths of the at least two downlink frequencies.

S120包括： S120 includes:

S124, 接收该基站发送的该第二用户通信频率，其中，该第二用户通信频率为该基站根据该至少两个下行频率的下行接收信号强度确定的该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率。 S124: Receive the second user communication frequency sent by the base station, where the second user communication frequency is the downlink received signal strength of the at least two downlink frequencies determined by the base station according to the downlink received signal strengths of the at least two downlink frequencies. Downlink frequency with the smallest or lowest path loss The rate corresponds to the upstream frequency.

具体而言， UE将检测到的该至少两个下行频率的下行接收信号强度上报基站。基站根据该至少两个下行频率的下行接收信号强度确定第二用户通信频率。可选地，基站可以将该至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率作为第二用户通信频率，或者，基站先根据该至少两个下行频率的下行接收信号强度计算下行路径损耗，再将该至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率作为第二用户通信频率。然后基站再将确定的第二用户通信频率通知 UE。 Specifically, the UE reports the detected downlink received signal strengths of the at least two downlink frequencies to the base station. The base station determines a second user communication frequency according to the downlink received signal strengths of the at least two downlink frequencies. Optionally, the base station may use, as the second user communication frequency, an uplink frequency corresponding to the downlink frequency with the lowest downlink received signal strength of the at least two downlink frequencies, or the base station first calculates the downlink received signal strength according to the at least two downlink frequencies. The downlink path loss is used as the second user communication frequency, and the uplink frequency corresponding to the downlink frequency where the downlink path loss is the largest among the at least two downlink frequencies. The base station then notifies the UE of the determined second user communication frequency.

可选地，当 UE要进行 D2D通信时，即该第二用户通信为 D2D通信时，该第二用户通信频率为该基站根据该 D2D通信双方发送的该至少两个下行频率的下行接收信号强度确定的该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率。具体而言，此时基站会收到 D2D通信双方发送的检测结果。基站根据 D2D通信双方的检测结果，即根据 D2D通信双方发送的该至少两个下行频率的下行接收信号强度确定第二用户通信频率（此时为 D2D通信频率）。 D2D通信双方发送的检测结果可能会不同，此时基站根据 D2D通信双方的检测结果选择综合干扰强度小的频率，即根据 D2D通信双方发送的该至少两个下行频率的下行接收信号强度确定该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率为第二用户通信频率。 Optionally, when the UE is to perform D2D communication, that is, when the second user communication is D2D communication, the second user communication frequency is a downlink received signal strength of the at least two downlink frequencies sent by the base station according to the D2D communication. And determining, in the at least two downlink frequencies, an uplink frequency corresponding to a downlink frequency with a minimum downlink received signal strength or a downlink path loss being the largest. Specifically, at this time, the base station receives the detection result sent by both parties of the D2D communication. The base station determines the second user communication frequency (in this case, the D2D communication frequency) according to the detection result of both parties of the D2D communication, that is, according to the downlink received signal strength of the at least two downlink frequencies transmitted by the D2D communication parties. The detection result sent by the D2D communication parties may be different. At this time, the base station selects a frequency with a small integrated interference strength according to the detection result of the D2D communication, that is, determines the at least the downlink received signal strength of the at least two downlink frequencies sent by the D2D communication parties. The uplink frequency corresponding to the downlink frequency with the lowest downlink received signal strength or the largest downlink path loss in the two downlink frequencies is the second user communication frequency.

例如，在图 5所示的场景中，下行频率 fl_d, f2_d, f3_d到达终端的信号强度分别表示为 Rl , R2 , R3。假设 DJJE1 检测的信号强度为 R1>R3>R2, D_UE2检测的信号强度为 R1>R2>R3,服务小区根据双方的检测结果为 DJJE1和 DJJE2的 D2D通信确定的 D2D通信频率为 f3_u , 虽然这个频率对于 DJJE1不是干扰强度最小的频率，是干扰强度较小的频率，但是对于 DJJE1和 DJJE2两者是综合干扰强度最小的频率。 For example, in the scenario shown in Figure 5, the signal strengths of the downlink frequencies fl_d, f2_d, and f3_d arriving at the terminal are represented as R1, R2, and R3, respectively. Assume that the signal strength detected by DJJE1 is R1>R3>R2, and the signal strength detected by D_UE2 is R1>R2>R3. The D2D communication frequency determined by the serving cell according to the detection result of both parties is D3JE1 and DJJE2 D3D communication is f3_u, although this frequency For DJJE1, the frequency with the least interference intensity is the frequency with less interference intensity, but for DJJE1 and DJJE2, the frequency with the smallest integrated interference intensity.

因此，本发明实施例的频率选择的方法，通过将至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率确定为第二用户通信频率，可以降低第二用户通信对小区通信的干扰，从而能够保证第二用户通信和小区通信的质量。 Therefore, the method for frequency selection in the embodiment of the present invention is to pass at least two downlink frequencies. The uplink frequency corresponding to the downlink frequency with the lowest received signal strength or the downlink path loss is determined as the second user communication frequency, which can reduce the interference of the second user communication to the cell communication, thereby ensuring the quality of the second user communication and the cell communication.

上文中结合图 1至图 5 , 从 UE的角度详细描述了频率选择的方法，下面将结合图 6, 从基站的角度描述频率选择的方法。 The method of frequency selection is described in detail from the perspective of the UE in conjunction with FIG. 1 to FIG. 5 below. The method of frequency selection will be described from the perspective of the base station in conjunction with FIG.

图 6示出了根据本发明另一实施例的频率选择的方法 200的示意性流程图。该方法 200由基站执行。如图 6所示，该方法 200包括： FIG. 6 shows a schematic flow diagram of a method 200 of frequency selection in accordance with another embodiment of the present invention. The method 200 is performed by a base station. As shown in FIG. 6, the method 200 includes:

S210, 接收用户设备发送的一个或多个小区的至少两个下行频率的下行接收信号强度； S210. Receive a downlink received signal strength of at least two downlink frequencies of one or more cells sent by the user equipment.

S220, 根据该至少两个下行频率的下行接收信号强度，确定第二用户通信频率，该第二用户通信频率为该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率，该第二用户通信表示共享授权用户频段进行的其它通信； S220. Determine, according to the downlink received signal strengths of the at least two downlink frequencies, a second user communication frequency, where the second user communication frequency is a downlink frequency corresponding to a minimum downlink signal strength or a downlink path loss of the at least two downlink frequencies. Uplink frequency, the second user communication indicates that other communications are performed by sharing the authorized user frequency band;

S230, 将该第二用户通信频率发送给该用户设备。 S230. Send the second user communication frequency to the user equipment.

为了降低第二用户通信对小区通信的干扰，基站根据用户设备发送的至少两个下行频率的下行接收信号强度，将该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率确定为第二用户通信频率，并通知给用户设备以进行第二用户通信。 In order to reduce the interference of the second user communication to the cell communication, the base station reduces the downlink received signal strength of the at least two downlink frequencies or the downlink frequency with the largest downlink path loss according to the downlink received signal strength of the at least two downlink frequencies sent by the user equipment. The corresponding uplink frequency is determined as the second user communication frequency, and is notified to the user equipment for the second user communication.

因此，本发明实施例的频率选择的方法，通过基站将至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率确定为第二用户通信频率，可以降低第二用户通信对小区通信的干扰，从而能够保证第二用户通信和小区通信的质量。 Therefore, in the frequency selection method of the embodiment of the present invention, the base station determines the uplink frequency corresponding to the downlink frequency with the minimum downlink signal strength or the downlink path loss of at least two downlink frequencies as the second user communication frequency, and can reduce the second. User communication interferes with cell communication, thereby ensuring the quality of the second user communication and cell communication.

可选地， S220包括： Optionally, S220 includes:

将该至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率确定为该第二用户通信频率。 The uplink frequency corresponding to the downlink frequency having the smallest downlink received signal strength among the at least two downlink frequencies is determined as the second user communication frequency.

基站根据 UE发送的该至少两个下行频率的下行接收信号强度，选择下行接收信号强度最小的下行频率对应的上行频率作为第二用户通信频率。 The base station selects according to the downlink received signal strength of the at least two downlink frequencies sent by the UE. The uplink frequency corresponding to the downlink frequency with the smallest downlink received signal strength is used as the second user communication frequency.

可选地， S220包括： Optionally, S220 includes:

根据该至少两个下行频率的下行接收信号强度，确定该至少两个下行频率的下行路径损耗； Determining downlink path loss of the at least two downlink frequencies according to downlink received signal strengths of the at least two downlink frequencies;

将该至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率确定为该第二用户通信频率。 The uplink frequency corresponding to the downlink frequency with the largest downlink path loss among the at least two downlink frequencies is determined as the second user communication frequency.

也就是说，基站选择下行路径损耗作为干扰强度指示。基站先根据 UE 发送的该至少两个下行频率的下行接收信号强度，确定该至少两个下行频率的下行路径损耗，再选择下行路径损耗最大的下行频率对应的上行频率作为第二用户通信频率。 That is, the base station selects the downlink path loss as the interference strength indication. The base station first determines the downlink path loss of the at least two downlink frequencies according to the downlink received signal strengths of the at least two downlink frequencies sent by the UE, and then selects the uplink frequency corresponding to the downlink frequency with the largest downlink path loss as the second user communication frequency.

可选地，基站获取该一个或多个小区的发射信号强度； Optionally, the base station acquires a transmit signal strength of the one or more cells;

在选择下行路径损耗作为干扰强度指示时，基站接收 UE发送的该至少两个下行频率的下行接收信号强度，获取待测小区的发射信号强度，根据小区的发射信号强度和下行接收信号强度计算下行路径损耗。 When the downlink path loss is selected as the interference strength indication, the base station receives the downlink received signal strength of the at least two downlink frequencies sent by the UE, acquires the transmit signal strength of the cell to be tested, and calculates the downlink according to the transmit signal strength of the cell and the downlink received signal strength. Path loss.

可选地，当该第二用户通信为 D2D通信时， S220包括： Optionally, when the second user communication is D2D communication, S220 includes:

根据该 D2D 通信双方发送的该至少两个下行频率的下行接收信号强度，确定该第二用户通信频率。 And determining, according to the downlink received signal strength of the at least two downlink frequencies sent by the two D2D communications, the second user communication frequency.

具体而言， D2D通信时，基站会收到 D2D通信双方发送的检测结果。基站根据 D2D通信双方的检测结果，即根据 D2D通信双方发送的该至少两个下行频率的下行接收信号强度确定第二用户通信频率（此时为 D2D通信频率）。 D2D通信双方发送的检测结果可能会不同，此时基站根据 D2D通信双方的检测结果选择综合干扰强度小的频率，即根据 D2D通信双方发送的该至少两个下行频率的下行接收信号强度确定该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率为第二用户通信频率。 Specifically, in D2D communication, the base station receives the detection result sent by both parties of the D2D communication. The base station determines the second user communication frequency (in this case, the D2D communication frequency) according to the detection result of both the D2D communication, that is, the downlink received signal strength of the at least two downlink frequencies transmitted by the D2D communication. The detection result sent by the D2D communication parties may be different. At this time, the base station selects a frequency with a small integrated interference strength according to the detection result of the D2D communication, that is, determines the at least the downlink received signal strength of the at least two downlink frequencies sent by the D2D communication parties. Two downstream frequencies The uplink frequency corresponding to the downlink frequency with the smallest received signal strength or the largest downlink path loss is the second user communication frequency.

因此，本发明实施例的频率选择的方法，通过将至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率确定为第二用户通信频率，可以降低第二用户通信对小区通信的干扰，从而能够保证第二用户通信和小区通信的质量。 Therefore, the method for frequency selection in the embodiment of the present invention can reduce the second user by determining the uplink frequency corresponding to the downlink frequency with the lowest downlink received signal strength or the downlink path loss of at least two downlink frequencies as the second user communication frequency. Communication interferes with cell communication, thereby ensuring the quality of the second user communication and cell communication.

上文中结合图 1至图 6,详细描述了根据本发明实施例的频率选择的方法，下面将结合图 7至图 12, 描述根据本发明实施例的用户设备和基站。 The method of frequency selection according to an embodiment of the present invention is described in detail above with reference to Figs. 1 through 6, and a user equipment and a base station according to an embodiment of the present invention will be described below with reference to Figs.

图 7示出了根据本发明实施例的用户设备 300的示意性框图。如图 7 所示，该用户设备 300包括： FIG. 7 shows a schematic block diagram of a user equipment 300 in accordance with an embodiment of the present invention. As shown in FIG. 7, the user equipment 300 includes:

接收模块 310,用于检测一个或多个小区的至少两个下行频率的下行接收信号强度； The receiving module 310 is configured to detect downlink receiving signal strengths of at least two downlink frequencies of one or more cells;

获取模块 320,用于获取基于该至少两个下行频率的下行接收信号强度确定的第二用户通信频率，该第二用户通信频率为该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率，该第二用户通信表示共享授权用户频段进行的其它通信。 The obtaining module 320 is configured to obtain a second user communication frequency determined according to the downlink received signal strength of the at least two downlink frequencies, where the second user communication frequency is a downlink received signal strength minimum or a downlink path loss in the at least two downlink frequencies The uplink frequency corresponding to the largest downlink frequency, and the second user communication indicates other communication performed by the shared authorized user frequency band.

本发明实施例的用户设备，通过将至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率确定为第二用户通信频率，可以降低第二用户通信对小区通信的干扰，从而能够保证第二用户通信和小区通信的质量。 The user equipment in the embodiment of the present invention can reduce the second user communication to the cell communication by determining the uplink frequency corresponding to the downlink frequency with the minimum downlink signal strength or the downlink path loss of at least two downlink frequencies as the second user communication frequency. The interference can thus ensure the quality of the second user communication and cell communication.

在本发明实施例中，如图 8所示，可选地，该获取模块 320包括：第一获取单元 321 ,用于将该至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率确定为该第二用户通信频率。 In the embodiment of the present invention, as shown in FIG. 8 , the acquiring module 320 includes: a first acquiring unit 321 , configured to perform uplink corresponding to a downlink frequency with a minimum downlink received signal strength in at least two downlink frequencies. The frequency is determined as the second user communication frequency.

可选地，该第一获取单元 321还用于，若该至少两个下行频率中的第一频率只对应一个小区，则将该第一频率对应的小区的下行接收信号强度作为该第一频率的下行接收信号强度；若该至少两个下行频率中的第二频率对应多个小区，则将该第二频率对应的多个小区的下行接收信号强度中的最大值作为该第二频率的下行接收信号强度，或者，将该第二频率对应的多个小区的下行接收信号强度之和作为该第二频率的下行接收信号强度，或者，将该第二频率对应的多个小区的下行接收信号强度的平均值作为该第二频率的下行接收信号强度；若该至少两个下行频率中的第三频率没有检测到任何小区，则将该第三频率的下行接收信号强度设置为最小；将该至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率作为该第二用户通信频率。 Optionally, the first acquiring unit 321 is further configured to: if the first frequency of the at least two downlink frequencies corresponds to only one cell, use the downlink received signal strength of the cell corresponding to the first frequency as the first frequency Downlink received signal strength; if the second frequency of the at least two downlink frequencies If the rate corresponds to the plurality of cells, the maximum value of the downlink received signal strengths of the plurality of cells corresponding to the second frequency is used as the downlink received signal strength of the second frequency, or the plurality of cells corresponding to the second frequency The sum of the downlink received signal strengths is used as the downlink received signal strength of the second frequency, or the average of the downlink received signal strengths of the plurality of cells corresponding to the second frequency is used as the downlink received signal strength of the second frequency; If the third frequency of the at least two downlink frequencies does not detect any cell, the downlink received signal strength of the third frequency is set to a minimum; and the uplink frequency corresponding to the downlink received signal strength of the at least two downlink frequencies is corresponding to the uplink. The frequency is used as the second user communication frequency.

本发明实施例的用户设备，通过将至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率确定为第二用户通信频率，可以降低第二用户通信对小区通信的干扰，从而能够保证第二用户通信和小区通信的质量。 The user equipment in the embodiment of the present invention can determine the interference of the second user communication to the cell communication by determining the uplink frequency corresponding to the downlink frequency with the minimum downlink received signal strength of the at least two downlink frequencies as the second user communication frequency, thereby enabling the user equipment to reduce the interference of the second user communication to the cell communication. The quality of the second user communication and cell communication is guaranteed.

在本发明实施例中，如图 8所示，可选地，该获取模块 320包括：第二获取单元 322, 用于根据该至少两个下行频率的下行接收信号强度，确定该至少两个下行频率的下行路径损耗；将该至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率确定为该第二用户通信频率。 In the embodiment of the present invention, as shown in FIG. 8 , the acquiring module 320 includes: a second obtaining unit 322, configured to determine, according to the downlink received signal strength of the at least two downlink frequencies, the at least two downlinks. The downlink path loss of the frequency; determining the uplink frequency corresponding to the downlink frequency with the largest downlink path loss in the at least two downlink frequencies as the second user communication frequency.

可选地，该第二获取单元 322还用于，若该至少两个下行频率中的第一频率只对应一个小区，则将该第一频率对应的小区的下行路径损耗作为该第一频率的下行路径损耗；若该至少两个下行频率中的第二频率对应多个小区，则将该第二频率对应的多个小区的下行路径损耗中的最小值作为该第二频率的下行路径损耗，或者，将该第二频率对应的多个小区的下行路径损耗的平均值作为该第二频率的下行路径损耗；若该至少两个下行频率中的第三频率没有检测到任何小区，则将该第三频率的下行路径损耗设置为最大；将该至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率作为该第二用户通信频率。本发明实施例的用户设备，通过将至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率确定为第二用户通信频率，可以降低第二用户通信对小区通信的干扰，从而能够保证第二用户通信和小区通信的质量。 Optionally, the second obtaining unit 322 is further configured to: if the first frequency of the at least two downlink frequencies corresponds to only one cell, use the downlink path loss of the cell corresponding to the first frequency as the first frequency a downlink path loss; if the second frequency of the at least two downlink frequencies corresponds to the multiple cells, the minimum value of the downlink path losses of the multiple cells corresponding to the second frequency is used as the downlink path loss of the second frequency, Or the average value of the downlink path loss of the multiple cells corresponding to the second frequency is used as the downlink path loss of the second frequency; if the third frequency of the at least two downlink frequencies does not detect any cell, The downlink path loss of the third frequency is set to be the maximum; and the uplink frequency corresponding to the downlink frequency where the downlink path loss is the largest among the at least two downlink frequencies is used as the second user communication frequency. The user equipment in the embodiment of the present invention can reduce the interference of the second user communication to the cell communication by determining the uplink frequency corresponding to the downlink frequency with the largest downlink path loss in the at least two downlink frequencies as the second user communication frequency, thereby ensuring The quality of the second user communication and cell communication.

可选地，该接收模块 310还用于从网络侧获取该一个或多个小区的发射信号强度； Optionally, the receiving module 310 is further configured to acquire, according to a network side, a transmit signal strength of the one or more cells.

该第二获取单元 322还用于，根据该一个或多个小区的发射信号强度和该至少两个下行频率的下行接收信号强度，确定该至少两个下行频率的下行路径损耗。 The second obtaining unit 322 is further configured to determine a downlink path loss of the at least two downlink frequencies according to a transmit signal strength of the one or more cells and a downlink received signal strength of the at least two downlink frequencies.

可选地，该接收模块 310还用于从网络侧获取该一个或多个小区的列表和该至少两个下行频率的列表。 Optionally, the receiving module 310 is further configured to obtain, from the network side, a list of the one or more cells and a list of the at least two downlink frequencies.

在本发明实施例中，可选地，该第二用户通信为 D2D通信； In the embodiment of the present invention, optionally, the second user communication is D2D communication;

该用户设备 300还包括： The user equipment 300 also includes:

第一发送模块，用于将该第二用户通信频率发送给基站，以便于该基站将该第二用户通信频率发送给该 D2D通信的其他用户设备。 The first sending module is configured to send the second user communication frequency to the base station, so that the base station sends the second user communication frequency to other user equipments of the D2D communication.

可选地，该用户设备 300还包括： Optionally, the user equipment 300 further includes:

定时确定模块，用于选择服务小区的帧定时作为该 D2D通信的定时基准。 The timing determining module is configured to select a frame timing of the serving cell as a timing reference of the D2D communication.

在本发明实施例中，如图 9所示，可选地，该用户设备 300还包括：第二发送模块 330,用于向基站发送该至少两个下行频率的下行接收信号强度； In the embodiment of the present invention, as shown in FIG. 9, the user equipment 300 further includes: a second sending module 330, configured to send the downlink receiving signal strength of the at least two downlink frequencies to the base station;

该接收模块 310还用于接收该基站发送的该第二用户通信频率，其中，该第二用户通信频率为该基站根据该至少两个下行频率的下行接收信号强度确定的该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率； The receiving module 310 is further configured to receive the second user communication frequency sent by the base station, where the second user communication frequency is the at least two downlink frequencies determined by the base station according to the downlink received signal strengths of the at least two downlink frequencies. The uplink frequency corresponding to the downlink frequency with the lowest received signal strength or the largest downlink path loss;

该获取模块 320包括：第三获取单元 323,用于获取该接收模块 310接收的该基站发送的该第二用户通信频率。 The obtaining module 320 includes: The third obtaining unit 323 is configured to acquire the second user communication frequency that is sent by the base station and received by the receiving module 310.

可选地，该第二用户通信为 D2D通信； Optionally, the second user communication is D2D communication;

该第二用户通信频率为该基站根据该 D2D通信双方发送的该至少两个下行频率的下行接收信号强度确定的该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率。 The second user communication frequency is a downlink frequency corresponding to the downlink received signal strength of the at least two downlink frequencies determined by the base station according to the downlink received signal strengths of the at least two downlink frequencies, and the downlink downlink signal loss is the largest Uplink frequency.

根据本发明实施例的用户设备 300可对应于根据本发明实施例的频率选择的方法中的用户设备，并且用户设备 300 中的各个模块的上述和其它操作和 /或功能分别为了实现图 1至图 6中的各个方法的相应流程，为了筒洁，在此不再赘述。 The user equipment 300 according to an embodiment of the present invention may correspond to a user equipment in a method of frequency selection according to an embodiment of the present invention, and the above and other operations and/or functions of the respective modules in the user equipment 300 are respectively implemented in order to implement FIG. The corresponding processes of the respective methods in FIG. 6 are not described here.

图 10示出了根据本发明实施例的基站 400的示意性框图。如图 10所示，该基站 400包括： FIG. 10 shows a schematic block diagram of a base station 400 in accordance with an embodiment of the present invention. As shown in FIG. 10, the base station 400 includes:

接收模块 410,用于接收用户设备发送的一个或多个小区的至少两个下行频率的下行接收信号强度； The receiving module 410 is configured to receive downlink received signal strengths of at least two downlink frequencies of one or more cells sent by the user equipment;

确定模块 420,用于根据该至少两个下行频率的下行接收信号强度，确定第二用户通信频率，该第二用户通信频率为该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率，该第二用户通信表示共享授权用户频段进行的其它通信； The determining module 420 is configured to determine, according to the downlink received signal strengths of the at least two downlink frequencies, a second user communication frequency, where the downlink received signal strength is the minimum or the downlink path loss is the largest in the at least two downlink frequencies. The uplink frequency corresponding to the downlink frequency, and the second user communication indicates that other communications are performed by sharing the authorized user frequency band;

发送模块 430, 用于将该第二用户通信频率发送给该用户设备。 The sending module 430 is configured to send the second user communication frequency to the user equipment.

本发明实施例的基站，通过将至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率确定为第二用户通信频率，可以降低第二用户通信对小区通信的干扰，从而能够保证第二用户通信和小区通信的质量。 The base station according to the embodiment of the present invention can reduce the second user communication to the cell communication by determining the uplink frequency corresponding to the downlink frequency with the minimum downlink signal strength or the downlink path loss of at least two downlink frequencies as the second user communication frequency. Interference, thereby ensuring the quality of the second user communication and cell communication.

可选地，该确定模块 420包括： Optionally, the determining module 420 includes:

第一确定单元，用于将该至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率确定为该第二用户通信频率。可选地，该确定模块 420包括： The first determining unit is configured to determine, as the second user communication frequency, an uplink frequency corresponding to a downlink frequency that minimizes a downlink received signal strength of the at least two downlink frequencies. Optionally, the determining module 420 includes:

第二确定单元，用于根据该至少两个下行频率的下行接收信号强度，确定该至少两个下行频率的下行路径损耗；将该至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率确定为该第二用户通信频率。 a second determining unit, configured to determine, according to the downlink received signal strength of the at least two downlink frequencies, a downlink path loss of the at least two downlink frequencies; and an uplink corresponding to the downlink frequency with the largest downlink path loss in the at least two downlink frequencies The frequency is determined as the second user communication frequency.

可选地，该基站 400还包括： Optionally, the base station 400 further includes:

获取模块，用于获取该一个或多个小区的发射信号强度； An acquiring module, configured to acquire a transmit signal strength of the one or more cells;

该第二确定单元还用于根据该一个或多个小区的发射信号强度和该至少两个下行频率的下行接收信号强度，确定该至少两个下行频率的下行路径损耗。 The second determining unit is further configured to determine a downlink path loss of the at least two downlink frequencies according to a transmit signal strength of the one or more cells and a downlink received signal strength of the at least two downlink frequencies.

该确定模块 420还用于根据该 D2D通信双方发送的该至少两个下行频率的下行接收信号强度，确定该第二用户通信频率。 The determining module 420 is further configured to determine the second user communication frequency according to the downlink received signal strengths of the at least two downlink frequencies sent by the D2D communication parties.

根据本发明实施例的基站 400可对应于根据本发明实施例的频率选择的方法中的基站，并且基站 400中的各个模块的上述和其它操作和 /或功能分别为了实现图 1至图 6中的各个方法的相应流程，为了筒洁，在此不再赘述。 The base station 400 according to an embodiment of the present invention may correspond to a base station in a method of frequency selection according to an embodiment of the present invention, and the above and other operations and/or functions of respective modules in the base station 400 are respectively implemented in FIGS. 1 to 6 The corresponding process of each method, for the sake of cleaning, will not be repeated here.

图 11示出了根据本发明另一实施例的用户设备 500的示意性框图。如图 11所示，该用户设备 500包括：接收器 510、处理器 520和发送器 530。 FIG. 11 shows a schematic block diagram of a user equipment 500 in accordance with another embodiment of the present invention. As shown in FIG. 11, the user equipment 500 includes: a receiver 510, a processor 520, and a transmitter 530.

该接收器 510用于检测一个或多个小区的至少两个下行频率的下行接收信号强度； The receiver 510 is configured to detect downlink received signal strengths of at least two downlink frequencies of one or more cells;

该处理器 520用于获取基于该至少两个下行频率的下行接收信号强度确定的第二用户通信频率，该第二用户通信频率为该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率，该第二用户通信表示共享授权用户频段进行的其它通信。 The processor 520 is configured to obtain a second user communication frequency determined according to the downlink received signal strength of the at least two downlink frequencies, where the second user communication frequency is in the at least two downlink frequencies. The uplink frequency corresponding to the downlink frequency with the lowest downlink received signal strength or the largest downlink path loss, and the second user communication indicates other communications performed by the shared authorized user frequency band.

可选地，该处理器 520还用于将该至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率确定为该第二用户通信频率。 Optionally, the processor 520 is further configured to determine, as the second user communication frequency, an uplink frequency corresponding to a downlink frequency that minimizes a downlink received signal strength of the at least two downlink frequencies.

可选地，该处理器 520还用于，若该至少两个下行频率中的第一频率只对应一个小区，则将该第一频率对应的小区的下行接收信号强度作为该第一频率的下行接收信号强度；若该至少两个下行频率中的第二频率对应多个小区，则将该第二频率对应的多个小区的下行接收信号强度中的最大值作为该第二频率的下行接收信号强度，或者，将该第二频率对应的多个小区的下行接收信号强度之和作为该第二频率的下行接收信号强度，或者，将该第二频率对应的多个小区的下行接收信号强度的平均值作为该第二频率的下行接收信号强度；若该至少两个下行频率中的第三频率没有检测到任何小区，则将该第三频率的下行接收信号强度设置为最小；将该至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率作为该第二用户通信频率。 Optionally, the processor 520 is further configured to: if the first frequency of the at least two downlink frequencies corresponds to only one cell, use the downlink received signal strength of the cell corresponding to the first frequency as the downlink of the first frequency Received signal strength; if the second frequency of the at least two downlink frequencies corresponds to multiple cells, the maximum value of the downlink received signal strengths of the multiple cells corresponding to the second frequency is used as the downlink received signal of the second frequency The strength, or the sum of downlink received signal strengths of the plurality of cells corresponding to the second frequency is used as the downlink received signal strength of the second frequency, or the downlink received signal strength of the plurality of cells corresponding to the second frequency The average value is used as the downlink received signal strength of the second frequency; if the third frequency of the at least two downlink frequencies does not detect any cell, the downlink received signal strength of the third frequency is set to a minimum; The uplink frequency corresponding to the downlink frequency with the lowest downlink received signal strength in the downlink frequency is used as the second user communication frequency.

可选地，该处理器 520还用于根据该至少两个下行频率的下行接收信号强度，确定该至少两个下行频率的下行路径损耗；将该至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率确定为该第二用户通信频率。 Optionally, the processor 520 is further configured to determine downlink path loss of the at least two downlink frequencies according to downlink received signal strengths of the at least two downlink frequencies; and downlink that minimizes downlink path loss in the at least two downlink frequencies The uplink frequency corresponding to the frequency is determined as the second user communication frequency.

可选地，该处理器 520还用于，若该至少两个下行频率中的第一频率只对应一个小区，则将该第一频率对应的小区的下行路径损耗作为该第一频率的下行路径损耗；若该至少两个下行频率中的第二频率对应多个小区，则将该第二频率对应的多个小区的下行路径损耗中的最小值作为该第二频率的下行路径损耗，或者，将该第二频率对应的多个小区的下行路径损耗的平均值作为该第二频率的下行路径损耗；若该至少两个下行频率中的第三频率没有检测到任何小区，则将该第三频率的下行路径损耗设置为最大；将该至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率作为该第二用户通信频率。 Optionally, the processor 520 is further configured to: if the first frequency of the at least two downlink frequencies corresponds to only one cell, use the downlink path loss of the cell corresponding to the first frequency as the downlink path of the first frequency. If the second frequency of the at least two downlink frequencies corresponds to multiple cells, the minimum value of the downlink path loss of the multiple cells corresponding to the second frequency is used as the downlink path loss of the second frequency, or The average value of the downlink path loss of the multiple cells corresponding to the second frequency is used as the downlink path loss of the second frequency; if the third frequency of the at least two downlink frequencies does not detect any cell, the third The downlink path loss of the frequency is set to the maximum; The uplink frequency corresponding to the downlink frequency with the largest downlink path loss among the at least two downlink frequencies is used as the second user communication frequency.

可选地，该接收器 510还用于从网络侧获取该一个或多个小区的发射信号强度； Optionally, the receiver 510 is further configured to acquire, from the network side, a transmit signal strength of the one or more cells.

该处理器 520还用于根据该一个或多个小区的发射信号强度和该至少两个下行频率的下行接收信号强度，确定该至少两个下行频率的下行路径损耗。 The processor 520 is further configured to determine downlink path loss of the at least two downlink frequencies according to a transmit signal strength of the one or more cells and a downlink received signal strength of the at least two downlink frequencies.

可选地，该接收器 510还用于从网络侧获取该一个或多个小区的列表和该至少两个下行频率的列表。 Optionally, the receiver 510 is further configured to obtain, from the network side, a list of the one or more cells and a list of the at least two downlink frequencies.

该发送器 530用于将该第二用户通信频率发送给基站，以便于该基站将该第二用户通信频率发送给该 D2D通信的其他用户设备。 The transmitter 530 is configured to send the second user communication frequency to the base station, so that the base station sends the second user communication frequency to other user equipments of the D2D communication.

可选地，该处理器 520还用于选择月良务小区的帧定时作为该 D2D通信的定时基准。 Optionally, the processor 520 is further configured to select a frame timing of the monthly service cell as a timing reference of the D2D communication.

可选地，该发送器 530还用于向基站发送该至少两个下行频率的下行接收信号强度； Optionally, the transmitter 530 is further configured to send the downlink received signal strength of the at least two downlink frequencies to the base station;

该接收器 510还用于接收该基站发送的该第二用户通信频率，其中，该第二用户通信频率为该基站根据该至少两个下行频率的下行接收信号强度确定的该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率； The receiver 510 is further configured to receive the second user communication frequency sent by the base station, where the second user communication frequency is the at least two downlink frequencies determined by the base station according to the downlink received signal strengths of the at least two downlink frequencies. The uplink frequency corresponding to the downlink frequency with the lowest received signal strength or the largest downlink path loss;

该处理器 520还用于获取该接收器 510接收的该基站发送的该第二用户通信频率。 The processor 520 is further configured to acquire the second user communication frequency sent by the base station and received by the receiver 510.

该第二用户通信频率为该基站根据该 D2D通信双方发送的该至少两个下行频率的下行接收信号强度确定的该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率。根据本发明实施例的用户设备 500可对应于根据本发明实施例的频率选择的方法中的用户设备，并且用户设备 500 中的各个模块的上述和其它操作和 /或功能分别为了实现图 1至图 6中的各个方法的相应流程，为了筒洁，在此不再赘述。 The second user communication frequency is a downlink frequency corresponding to the downlink received signal strength of the at least two downlink frequencies determined by the base station according to the downlink received signal strengths of the at least two downlink frequencies, and the downlink downlink signal loss is the largest Uplink frequency. The user equipment 500 according to an embodiment of the present invention may correspond to a user equipment in a method of frequency selection according to an embodiment of the present invention, and the above and other operations and/or functions of the respective modules in the user equipment 500 are respectively implemented in order to implement FIG. 1 to The corresponding processes of the respective methods in FIG. 6 are not described here.

图 12示出了根据本发明另一实施例的基站 600的示意性框图。如图 12 所示，该基站 600包括： FIG. 12 shows a schematic block diagram of a base station 600 in accordance with another embodiment of the present invention. As shown in Figure 12, the base station 600 includes:

接收器 610,用于接收用户设备发送的一个或多个小区的至少两个下行频率的下行接收信号强度； The receiver 610 is configured to receive downlink received signal strengths of at least two downlink frequencies of one or more cells sent by the user equipment.

处理器 620,用于根据该至少两个下行频率的下行接收信号强度，确定第二用户通信频率，该第二用户通信频率为该至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率，该第二用户通信表示共享授权用户频段进行的其它通信； The processor 620 is configured to determine a second user communication frequency according to the downlink received signal strength of the at least two downlink frequencies, where the second user communication frequency is the minimum downlink received signal strength or the downlink path loss is maximum in the at least two downlink frequencies. The uplink frequency corresponding to the downlink frequency, and the second user communication indicates that other communications are performed by sharing the authorized user frequency band;

发送器 630, 用于将该第二用户通信频率发送给该用户设备。 The transmitter 630 is configured to send the second user communication frequency to the user equipment.

可选地，该处理器 620还用于将该至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率确定为该第二用户通信频率。 Optionally, the processor 620 is further configured to determine, as the second user communication frequency, an uplink frequency corresponding to a downlink frequency that minimizes a downlink received signal strength of the at least two downlink frequencies.

可选地，该处理器 620还用于根据该至少两个下行频率的下行接收信号强度，确定该至少两个下行频率的下行路径损耗；将该至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率确定为该第二用户通信频率。 Optionally, the processor 620 is further configured to determine downlink path loss of the at least two downlink frequencies according to the downlink received signal strengths of the at least two downlink frequencies; and downlinks that minimize the downlink path loss in the at least two downlink frequencies. The uplink frequency corresponding to the frequency is determined as the second user communication frequency.

可选地，该处理器 620还用于获取该一个或多个小区的发射信号强度；该处理器 620还用于根据该一个或多个小区的发射信号强度和该至少两个下行频率的下行接收信号强度，确定该至少两个下行频率的下行路径损耗。 Optionally, the processor 620 is further configured to acquire a transmit signal strength of the one or more cells. The processor 620 is further configured to: according to the transmit signal strength of the one or more cells and the downlink of the at least two downlink frequencies. Receiving signal strength, determining a downlink path loss of the at least two downlink frequencies.

该处理器 620还用于根据该 D2D通信双方发送的该至少两个下行频率的下行接收信号强度，确定该第二用户通信频率。根据本发明实施例的基站 600可对应于根据本发明实施例的频率选择的方法中的基站，并且基站 600中的各个模块的上述和其它操作和 /或功能分别为了实现图 1至图 6中的各个方法的相应流程，为了筒洁，在此不再赘述。 The processor 620 is further configured to determine the second user communication frequency according to the downlink received signal strengths of the at least two downlink frequencies sent by the two D2D communication parties. The base station 600 according to an embodiment of the present invention may correspond to a base station in a method of frequency selection according to an embodiment of the present invention, and the above and other operations and/or functions of respective modules in the base station 600 are respectively implemented in FIGS. 1 to 6 The corresponding process of each method, for the sake of cleaning, will not be repeated here.

应理解，在本发明实施例中，术语 "和 /或" 仅仅是一种描述关联对象的关联关系，表示可以存在三种关系。例如， A和 /或 B, 可以表示：单独存在 A, 同时存在 A和 B,单独存在 B这三种情况。另外，本文中字符 " , 一般表示前后关联对象是一种 "或" 的关系。 It should be understood that in the embodiment of the present invention, the term "and/or" is merely an association describing the associated object, indicating that there may be three relationships. For example, A and / or B, can mean: There are three cases, A and B, and B alone. In addition, the character " in this article generally indicates that the contextual object is an "or" relationship.

本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、计算机软件或者二者的结合来实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能一般性地描述了各示例的组成及步骤。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。 Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software or a combination of both, in order to clearly illustrate hardware and software. Interchangeability, the composition and steps of the various examples have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

所属领域的技术人员可以清楚地了解到，为了描述的方便和筒洁，上述描述的***、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。 A person skilled in the art can clearly understand that, for the convenience and the cleaning of the description, the specific working processes of the system, the device and the unit described above can refer to the corresponding processes in the foregoing method embodiments, and details are not described herein again.

在本申请所提供的几个实施例中，应该理解到，所揭露的***、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。另外，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口、装置或单元的间接耦合或通信连接，也可以是电的，机械的或其它的形式连接。作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本发明实施例方案的目的。 In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection. The components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.

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，也可以是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采用硬件的形式实现，也可以采用软件功能单元的形式实现。 In addition, 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 a software functional unit.

所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分，或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品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）执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括： U盘、移动硬盘、只读存储器 ( ROM, Read-Only Memory ), 随机存取存储器（RAM, Random Access Memory )、磁碟或者光盘等各种可以存储程序代码的介质。 The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到各种等效的修改或替换，这些修改或替换都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以权利要求的保护范围为准。 The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any equivalent person can be easily conceived within the technical scope of the present invention. Modifications or substitutions are intended to be included within the scope of the invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

权利要求 Rights request

1、一种频率选择的方法，其特征在于，包括： 1. A frequency selection method, characterized by including:

检测一个或多个小区的至少两个下行频率的下行接收信号强度；获取基于所述至少两个下行频率的下行接收信号强度确定的第二用户通信频率，所述第二用户通信频率为所述至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率，所述第二用户通信表示共享授权用户频段进行的其它通信。 Detecting downlink received signal strengths of at least two downlink frequencies of one or more cells; obtaining a second user communication frequency determined based on the downlink received signal strengths of the at least two downlink frequencies, where the second user communication frequency is the The uplink frequency corresponding to the downlink frequency with the smallest downlink received signal strength or the largest downlink path loss among at least two downlink frequencies, and the second user communication represents other communications carried out in the shared authorized user frequency band.

2、根据权利要求 1所述的方法，其特征在于，所述获取基于所述至少两个下行频率的下行接收信号强度确定的第二用户通信频率，包括： 2. The method according to claim 1, wherein the obtaining the second user communication frequency determined based on the downlink received signal strength of the at least two downlink frequencies includes:

将所述至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率确定为所述第二用户通信频率。 The uplink frequency corresponding to the downlink frequency with the smallest downlink received signal strength among the at least two downlink frequencies is determined as the second user communication frequency.

3、根据权利要求 2所述的方法，其特征在于，所述将所述至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率确定为所述第二用户通信频率，包括： 3. The method according to claim 2, wherein determining the uplink frequency corresponding to the downlink frequency with the smallest downlink received signal strength among the at least two downlink frequencies as the second user communication frequency includes:

若所述至少两个下行频率中的第一频率只对应一个小区，则将所述第一频率对应的小区的下行接收信号强度作为所述第一频率的下行接收信号强度； If the first frequency among the at least two downlink frequencies corresponds to only one cell, then the downlink received signal strength of the cell corresponding to the first frequency is used as the downlink received signal strength of the first frequency;

若所述至少两个下行频率中的第二频率对应多个小区，则将所述第二频率对应的多个小区的下行接收信号强度中的最大值作为所述第二频率的下行接收信号强度，或者，将所述第二频率对应的多个小区的下行接收信号强度之和作为所述第二频率的下行接收信号强度，或者，将所述第二频率对应的多个小区的下行接收信号强度的平均值作为所述第二频率的下行接收信号强度； If the second frequency among the at least two downlink frequencies corresponds to multiple cells, then the maximum value among the downlink received signal strengths of the multiple cells corresponding to the second frequency is used as the downlink received signal strength of the second frequency. , or, use the sum of the downlink received signal strengths of multiple cells corresponding to the second frequency as the downlink received signal strength of the second frequency, or, use the downlink received signal strengths of multiple cells corresponding to the second frequency The average value of the strength is used as the downlink received signal strength of the second frequency;

若所述至少两个下行频率中的第三频率没有检测到任何小区，则将所述第三频率的下行接收信号强度设置为最小；将所述至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率作为所述第二用户通信频率。 If no cell is detected at the third frequency among the at least two downlink frequencies, then the downlink received signal strength of the third frequency is set to the minimum; The uplink frequency corresponding to the downlink frequency with the smallest downlink received signal strength among the at least two downlink frequencies is used as the second user communication frequency.

4、根据权利要求 1所述的方法，其特征在于，所述获取基于所述至少两个下行频率的下行接收信号强度确定的第二用户通信频率，包括： 4. The method according to claim 1, wherein the obtaining the second user communication frequency determined based on the downlink received signal strength of the at least two downlink frequencies includes:

根据所述至少两个下行频率的下行接收信号强度，确定所述至少两个下行频率的下行路径损耗； Determine the downlink path loss of the at least two downlink frequencies based on the downlink received signal strengths of the at least two downlink frequencies;

将所述至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率确定为所述第二用户通信频率。 The uplink frequency corresponding to the downlink frequency with the largest downlink path loss among the at least two downlink frequencies is determined as the second user communication frequency.

5、根据权利要求 4所述的方法，其特征在于，所述将所述至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率确定为所述第二用户通信频率，包括： 5. The method according to claim 4, wherein determining the uplink frequency corresponding to the downlink frequency with the largest downlink path loss among the at least two downlink frequencies as the second user communication frequency includes:

若所述至少两个下行频率中的第一频率只对应一个小区，则将所述第一频率对应的小区的下行路径损耗作为所述第一频率的下行路径损耗；若所述至少两个下行频率中的第二频率对应多个小区，则将所述第二频率对应的多个小区的下行路径损耗中的最小值作为所述第二频率的下行路径损耗，或者，将所述第二频率对应的多个小区的下行路径损耗的平均值作为所述第二频率的下行路径损耗； If the first frequency among the at least two downlink frequencies corresponds to only one cell, then the downlink path loss of the cell corresponding to the first frequency is used as the downlink path loss of the first frequency; if the at least two downlink frequencies The second frequency in the frequency corresponds to multiple cells, then the minimum value of the downlink path losses of the multiple cells corresponding to the second frequency is used as the downlink path loss of the second frequency, or, the second frequency The average value of the downlink path losses of the corresponding multiple cells is used as the downlink path loss of the second frequency;

若所述至少两个下行频率中的第三频率没有检测到任何小区，则将所述第三频率的下行路径损耗设置为最大； If no cell is detected in the third frequency of the at least two downlink frequencies, then the downlink path loss of the third frequency is set to the maximum;

将所述至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率作为所述第二用户通信频率。 The uplink frequency corresponding to the downlink frequency with the largest downlink path loss among the at least two downlink frequencies is used as the second user communication frequency.

6、根据权利要求 4或 5所述的方法，其特征在于，所述方法还包括：从网络侧获取所述一个或多个小区的发射信号强度； 6. The method according to claim 4 or 5, characterized in that, the method further includes: obtaining the transmission signal strength of the one or more cells from the network side;

所述根据所述至少两个下行频率的下行接收信号强度，确定所述至少两个下行频率的下行路径损耗，包括：根据所述一个或多个小区的发射信号强度和所述至少两个下行频率的下行接收信号强度，确定所述至少两个下行频率的下行路径损耗。 Determining the downlink path loss of the at least two downlink frequencies based on the downlink received signal strengths of the at least two downlink frequencies includes: The downlink path loss of the at least two downlink frequencies is determined according to the transmit signal strength of the one or more cells and the downlink receive signal strength of the at least two downlink frequencies.

7、根据权利要求 1至 6中任一项所述的方法，其特征在于，所述方法还包括： 7. The method according to any one of claims 1 to 6, characterized in that the method further includes:

从网络侧获取所述一个或多个小区的列表和所述至少两个下行频率的列表。 Obtain the list of one or more cells and the list of at least two downlink frequencies from the network side.

8、根据权利要求 1至 7中任一项所述的方法，其特征在于，所述第二用户通信为 D2D通信； 8. The method according to any one of claims 1 to 7, characterized in that the second user communication is D2D communication;

所述方法还包括： The method also includes:

将所述第二用户通信频率发送给基站，以便于所述基站将所述第二用户通信频率发送给所述 D2D通信的其他用户设备。 Send the second user communication frequency to the base station, so that the base station sends the second user communication frequency to other user equipment in the D2D communication.

9、根据权利要求 8所述的方法，其特征在于，所述方法还包括：选择服务' j、区的帧定时作为所述 D2D通信的定时基准。 9. The method according to claim 8, characterized in that the method further includes: selecting the frame timing of service 'j' zone as the timing reference of the D2D communication.

10、根据权利要求 1所述的方法，其特征在于，在所述获取基于所述至少两个下行频率的下行接收信号强度确定的第二用户通信频率之前，所述方法还包括： 10. The method according to claim 1, characterized in that, before obtaining the second user communication frequency determined based on the downlink received signal strength of the at least two downlink frequencies, the method further includes:

向基站发送所述至少两个下行频率的下行接收信号强度； Send downlink received signal strengths of the at least two downlink frequencies to the base station;

所述获取基于所述至少两个下行频率的下行接收信号强度确定的第二用户通信频率，包括： The obtaining the second user communication frequency determined based on the downlink received signal strength of the at least two downlink frequencies includes:

接收所述基站发送的所述第二用户通信频率，其中，所述第二用户通信频率为所述基站根据所述至少两个下行频率的下行接收信号强度确定的所述至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率。 Receive the second user communication frequency sent by the base station, wherein the second user communication frequency is one of the at least two downlink frequencies determined by the base station based on the downlink received signal strength of the at least two downlink frequencies. The uplink frequency corresponding to the downlink frequency with the smallest downlink received signal strength or the largest downlink path loss.

11、根据权利 10所述的方法，其特征在于，所述第二用户通信为 D2D 通信；所述第二用户通信频率为所述基站根据所述 D2D通信双方发送的所述至少两个下行频率的下行接收信号强度确定的所述至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率。 11. The method according to claim 10, characterized in that the second user communication is D2D communication; The second user communication frequency is the smallest downlink received signal strength or downlink path loss among the at least two downlink frequencies determined by the base station based on the downlink received signal strengths of the at least two downlink frequencies sent by the D2D communicating parties. The uplink frequency corresponding to the maximum downlink frequency.

12、一种频率选择的方法，其特征在于，包括： 12. A frequency selection method, characterized by including:

接收用户设备发送的一个或多个小区的至少两个下行频率的下行接收信号强度； Receive the downlink received signal strength of at least two downlink frequencies of one or more cells sent by the user equipment;

根据所述至少两个下行频率的下行接收信号强度，确定第二用户通信频率，所述第二用户通信频率为所述至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率，所述第二用户通信表示共享授权用户频段进行的其它通信； Determine a second user communication frequency according to the downlink received signal strength of the at least two downlink frequencies. The second user communication frequency is the downlink frequency with the smallest downlink received signal strength or the largest downlink path loss among the at least two downlink frequencies. Corresponding uplink frequency, the second user communication represents other communications carried out in the shared authorized user frequency band;

将所述第二用户通信频率发送给所述用户设备。 Send the second user communication frequency to the user equipment.

13、根据权利要求 12所述的方法，其特征在于，所述根据所述至少两个下行频率的下行接收信号强度，确定第二用户通信频率，包括： 13. The method according to claim 12, wherein determining the second user communication frequency according to the downlink received signal strength of the at least two downlink frequencies includes:

14、根据权利要求 12所述的方法，其特征在于，所述根据所述至少两个下行频率的下行接收信号强度，确定第二用户通信频率，包括： 14. The method according to claim 12, wherein determining the second user communication frequency according to the downlink received signal strength of the at least two downlink frequencies includes:

15、根据权利要求 14所述的方法，其特征在于，所述方法还包括：获取所述一个或多个小区的发射信号强度； 15. The method according to claim 14, characterized in that, the method further includes: obtaining the transmission signal strength of the one or more cells;

16、根据权利要求 12至 15中任一项所述的方法，其特征在于，所述第二用户通信为 D2D通信； 16. The method according to any one of claims 12 to 15, characterized in that the second user communication is D2D communication;

所述根据所述至少两个下行频率的下行接收信号强度，确定第二用户通信频率，包括： Determining the second user communication frequency based on the downlink received signal strength of the at least two downlink frequencies includes:

根据所述 D2D通信双方发送的所述至少两个下行频率的下行接收信号强度，确定所述第二用户通信频率。 The second user communication frequency is determined according to the downlink received signal strength of the at least two downlink frequencies sent by the D2D communication parties.

17、一种用户设备，其特征在于，包括： 17. A user equipment, characterized by: including:

接收模块，用于检测一个或多个小区的至少两个下行频率的下行接收信号强度； A receiving module, configured to detect the downlink received signal strength of at least two downlink frequencies of one or more cells;

获取模块，用于获取基于所述至少两个下行频率的下行接收信号强度确定的第二用户通信频率，所述第二用户通信频率为所述至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率，所述第二用户通信表示共享授权用户频段进行的其它通信。 An acquisition module, configured to acquire a second user communication frequency determined based on the downlink received signal strength of the at least two downlink frequencies, where the second user communication frequency is the smallest downlink received signal strength or the downlink frequency among the at least two downlink frequencies. The uplink frequency corresponding to the downlink frequency with the largest path loss, and the second user communication represents other communications carried out in the shared authorized user frequency band.

18、根据权利要求 17所述的用户设备，其特征在于，所述获取模块包括： 18. The user equipment according to claim 17, characterized in that the acquisition module includes:

第一获取单元，用于将所述至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率确定为所述第二用户通信频率。 The first acquisition unit is configured to determine the uplink frequency corresponding to the downlink frequency with the smallest downlink received signal strength among the at least two downlink frequencies as the second user communication frequency.

19、根据权利要求 18所述的用户设备，其特征在于，所述第一获取单元还用于，若所述至少两个下行频率中的第一频率只对应一个小区，则将所述第一频率对应的小区的下行接收信号强度作为所述第一频率的下行接收信号强度；若所述至少两个下行频率中的第二频率对应多个小区，则将所述第二频率对应的多个小区的下行接收信号强度中的最大值作为所述第二频率的下行接收信号强度，或者，将所述第二频率对应的多个小区的下行接收信号强度之和作为所述第二频率的下行接收信号强度，或者，将所述第二频率对应的多个小区的下行接收信号强度的平均值作为所述第二频率的下行接收信号强度；若所述至少两个下行频率中的第三频率没有检测到任何小区，则将所述第三频率的下行接收信号强度设置为最小；将所述至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率作为所述第二用户通信频率。 19. The user equipment according to claim 18, wherein the first acquisition unit is further configured to: if the first frequency among the at least two downlink frequencies corresponds to only one cell, obtain the first frequency. The downlink received signal strength of the cell corresponding to the frequency is used as the downlink received signal strength of the first frequency; if the second frequency of the at least two downlink frequencies corresponds to multiple cells, then the multiple cells corresponding to the second frequency are The maximum value among the downlink received signal strengths of the cells is used as the downlink received signal strength of the second frequency, or the sum of the downlink received signal strengths of multiple cells corresponding to the second frequency is used as the downlink received signal strength of the second frequency. Received signal strength, or, all The average of the downlink received signal strengths of multiple cells corresponding to the second frequency is used as the downlink received signal strength of the second frequency; if no cell is detected on the third frequency of the at least two downlink frequencies, then The downlink received signal strength of the third frequency is set to the minimum; and the uplink frequency corresponding to the downlink frequency with the smallest downlink received signal strength among the at least two downlink frequencies is used as the second user communication frequency.

20、根据权利要求 17所述的用户设备，其特征在于，所述获取模块包括： 20. The user equipment according to claim 17, characterized in that the acquisition module includes:

第二获取单元，用于根据所述至少两个下行频率的下行接收信号强度，确定所述至少两个下行频率的下行路径损耗；将所述至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率确定为所述第二用户通信频率。 The second acquisition unit is configured to determine the downlink path loss of the at least two downlink frequencies according to the downlink received signal strength of the at least two downlink frequencies; and obtain the downlink frequency with the largest downlink path loss among the at least two downlink frequencies. The corresponding uplink frequency is determined as the second user communication frequency.

21、根据权利要求 20所述的用户设备，其特征在于，所述第二获取单元还用于，若所述至少两个下行频率中的第一频率只对应一个小区，则将所述第一频率对应的小区的下行路径损耗作为所述第一频率的下行路径损耗；若所述至少两个下行频率中的第二频率对应多个小区，则将所述第二频率对应的多个小区的下行路径损耗中的最小值作为所述第二频率的下行路径损耗，或者，将所述第二频率对应的多个小区的下行路径损耗的平均值作为所述第二频率的下行路径损耗；若所述至少两个下行频率中的第三频率没有检测到任何小区，则将所述第三频率的下行路径损耗设置为最大；将所述至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率作为所述第二用户通信频率。 21. The user equipment according to claim 20, wherein the second acquisition unit is further configured to: if the first frequency among the at least two downlink frequencies corresponds to only one cell, obtain the first frequency. The downlink path loss of the cell corresponding to the frequency is used as the downlink path loss of the first frequency; if the second frequency among the at least two downlink frequencies corresponds to multiple cells, then the downlink path loss of the multiple cells corresponding to the second frequency is The minimum value of the downlink path losses is used as the downlink path loss of the second frequency, or the average of the downlink path losses of multiple cells corresponding to the second frequency is used as the downlink path loss of the second frequency; if If no cell is detected at the third frequency among the at least two downlink frequencies, the downlink path loss of the third frequency is set to the maximum; and the downlink frequency with the maximum downlink path loss among the at least two downlink frequencies corresponds to The uplink frequency is used as the second user communication frequency.

22、根据权利要求 20或 21所述的用户设备，其特征在于，所述接收模块还用于从网络侧获取所述一个或多个小区的发射信号强度； 22. The user equipment according to claim 20 or 21, characterized in that the receiving module is also used to obtain the transmission signal strength of the one or more cells from the network side;

所述第二获取单元还用于，根据所述一个或多个小区的发射信号强度和所述至少两个下行频率的下行接收信号强度，确定所述至少两个下行频率的下行路径损耗。 The second acquisition unit is further configured to determine the downlink path loss of the at least two downlink frequencies based on the transmit signal strength of the one or more cells and the downlink receive signal strength of the at least two downlink frequencies.

23、根据权利要求 17至 22中任一项所述的用户设备，其特征在于，所述接收模块还用于从网络侧获取所述一个或多个小区的列表和所述至少两个下行频率的列表。 23. The user equipment according to any one of claims 17 to 22, characterized in that the receiving module is further configured to obtain the list of one or more cells and the at least two downlink frequencies from the network side. list of.

24、根据权利要求 17至 23中任一项所述的用户设备，其特征在于，所述第二用户通信为 D2D通信； 24. The user equipment according to any one of claims 17 to 23, characterized in that the second user communication is D2D communication;

所述用户设备还包括： The user equipment also includes:

第一发送模块，用于将所述第二用户通信频率发送给基站，以便于所述基站将所述第二用户通信频率发送给所述 D2D通信的其他用户设备。 The first sending module is configured to send the second user communication frequency to the base station, so that the base station sends the second user communication frequency to other user equipment in the D2D communication.

25、根据权利要求 24所述的用户设备，其特征在于，所述用户设备还包括： 25. The user equipment according to claim 24, characterized in that the user equipment further includes:

定时确定模块，用于选择服务 d、区的帧定时作为所述 D2D通信的定时基准。 A timing determination module, configured to select the frame timing of the service area d as the timing reference for the D2D communication.

26、根据权利要求 17所述的用户设备，其特征在于，所述用户设备还包括： 26. The user equipment according to claim 17, characterized in that the user equipment further includes:

第二发送模块，用于向基站发送所述至少两个下行频率的下行接收信号强度； A second sending module, configured to send downlink received signal strengths of the at least two downlink frequencies to the base station;

所述接收模块还用于接收所述基站发送的所述第二用户通信频率，其中，所述第二用户通信频率为所述基站根据所述至少两个下行频率的下行接收信号强度确定的所述至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率； The receiving module is also configured to receive the second user communication frequency sent by the base station, wherein the second user communication frequency is determined by the base station according to the downlink received signal strength of the at least two downlink frequencies. The uplink frequency corresponding to the downlink frequency with the smallest downlink received signal strength or the largest downlink path loss among the at least two downlink frequencies;

所述获取模块包括： The acquisition module includes:

第三获取单元，用于获取所述接收模块接收的所述基站发送的所述第二用户通信频率。 The third acquisition unit is used to acquire the second user communication frequency sent by the base station and received by the receiving module.

27、根据权利 26所述的用户设备，其特征在于，所述第二用户通信为 D2D通信；所述第二用户通信频率为所述基站根据所述 D2D通信双方发送的所述至少两个下行频率的下行接收信号强度确定的所述至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率。 27. The user equipment according to claim 26, characterized in that, the second user communication is D2D communication; The second user communication frequency is the smallest downlink received signal strength or downlink path loss among the at least two downlink frequencies determined by the base station based on the downlink received signal strengths of the at least two downlink frequencies sent by the D2D communicating parties. The uplink frequency corresponding to the maximum downlink frequency.

28、一种基站，其特征在于，包括： 28. A base station, characterized by including:

接收模块，用于接收用户设备发送的一个或多个小区的至少两个下行频率的下行接收信号强度； A receiving module, configured to receive the downlink received signal strength of at least two downlink frequencies of one or more cells sent by the user equipment;

确定模块，用于根据所述至少两个下行频率的下行接收信号强度，确定第二用户通信频率，所述第二用户通信频率为所述至少两个下行频率中下行接收信号强度最小或者下行路径损耗最大的下行频率对应的上行频率，所述第二用户通信表示共享授权用户频段进行的其它通信； Determining module, configured to determine a second user communication frequency according to the downlink received signal strength of the at least two downlink frequencies, where the second user communication frequency is the smallest downlink received signal strength or the downlink path among the at least two downlink frequencies. The uplink frequency corresponding to the downlink frequency with the largest loss, and the second user communication represents other communications carried out in the shared authorized user frequency band;

发送模块，用于将所述第二用户通信频率发送给所述用户设备。 A sending module, configured to send the second user communication frequency to the user equipment.

29、根据权利要求 28所述的基站，其特征在于，所述确定模块包括：第一确定单元，用于将所述至少两个下行频率中下行接收信号强度最小的下行频率对应的上行频率确定为所述第二用户通信频率。 29. The base station according to claim 28, wherein the determination module includes: a first determination unit, configured to determine the uplink frequency corresponding to the downlink frequency with the smallest downlink received signal strength among the at least two downlink frequencies. is the second user communication frequency.

30、根据权利要求 28所述的基站，其特征在于，所述确定模块包括：第二确定单元，用于根据所述至少两个下行频率的下行接收信号强度，确定所述至少两个下行频率的下行路径损耗；将所述至少两个下行频率中下行路径损耗最大的下行频率对应的上行频率确定为所述第二用户通信频率。 30. The base station according to claim 28, characterized in that the determination module includes: a second determination unit, configured to determine the at least two downlink frequencies according to the downlink received signal strength of the at least two downlink frequencies. The downlink path loss; determine the uplink frequency corresponding to the downlink frequency with the largest downlink path loss among the at least two downlink frequencies as the second user communication frequency.

31、根据权利要求 30所述的基站，其特征在于，所述基站还包括：获取模块，用于获取所述一个或多个小区的发射信号强度； 31. The base station according to claim 30, characterized in that, the base station further includes: an acquisition module, used to acquire the transmission signal strength of the one or more cells;

所述第二确定单元还用于根据所述一个或多个小区的发射信号强度和所述至少两个下行频率的下行接收信号强度，确定所述至少两个下行频率的下行路径损耗。 The second determining unit is further configured to determine the downlink path loss of the at least two downlink frequencies based on the transmit signal strength of the one or more cells and the downlink receive signal strength of the at least two downlink frequencies.

32、根据权利要求 28至 31中任一项所述的基站，其特征在于，所述第二用户通信为 D2D通信；所述确定模块还用于根据所述 D2D通信双方发送的所述至少两个下行频率的下行接收信号强度，确定所述第二用户通信频率。 32. The base station according to any one of claims 28 to 31, characterized in that, the second user communication is D2D communication; The determining module is further configured to determine the second user communication frequency according to the downlink received signal strength of the at least two downlink frequencies sent by the D2D communication parties.