技术领域technical field
本发明涉及通信技术领域，尤其涉及发射功率控制方法、基站以及用户设备(英文全称：User Equipment，英文缩写：UE)。The present invention relates to the field of communication technologies, and in particular to a transmission power control method, a base station and user equipment (English full name: User Equipment, English abbreviation: UE).
背景技术Background technique
在长期演进(英文全称：Long Term Evolution，英文缩写：LTE)上行系统中，在UE向基站发送信号后，为了使基站的接收信号满足一定的质量，需要控制UE的发射功率，以补偿无线信道的损耗和阴影衰落。一般来说，UE的发射功率越强，基站的接收信号也越强，接收质量也就越好。由于LTE系统服务小区间采用的频率复用因子一般为1，所以基站的接收信号还受到相邻小区的UE发射信号的干扰。如图1所示，归属于基站1所在小区的UE1的发射信号会对归属于基站2所在小区的UE2造成干扰，而基站2所在小区的UE2的发射信号也会对归属于基站1所在小区的UE1造成干扰。因此，如何合理的控制UE的发射功率，使得网络整体获得较好的性能，就成为目前所面临的问题。In the Long Term Evolution (English full name: Long Term Evolution, English abbreviation: LTE) uplink system, after the UE sends a signal to the base station, in order to make the received signal of the base station meet a certain quality, it is necessary to control the transmit power of the UE to compensate for the wireless channel loss and shadow fading. Generally speaking, the stronger the transmitting power of the UE is, the stronger the received signal of the base station is, and the better the receiving quality is. Since the frequency reuse factor used between serving cells in the LTE system is generally 1, the received signal of the base station is also interfered by the transmitted signal of the UE in the adjacent cell. As shown in Figure 1, the transmission signal of UE1 belonging to the cell where base station 1 is located will cause interference to UE2 belonging to the cell where base station 2 is located, and the transmission signal of UE2 belonging to the cell where base station 2 is located will also interfere with UE2 belonging to the cell where base station 1 is located. UE1 causes interference. Therefore, how to reasonably control the transmit power of the UE so as to obtain better performance of the network as a whole has become a problem currently faced.
当前的方案主要是采用部分功率补偿技术，其思想是部分补偿传播损耗能量，从而获取UE的发射功率。具体为：首先UE从基站获取若干参数，包括参考接收功率P0，部分路损补偿因子α，参考发射功率PRS，然后，UE根据参考发射功率PRS以及接收到的PUERcv计算传播损耗PPL＝PRS–PUERcv，最后，UE的每个无线承载的发射功率为PUE＝min{PMax，10lgM+P0+αPPL}，其中PMax为最大发射功率，M为无线承载的个数。The current solution mainly adopts the partial power compensation technology, and its idea is to partially compensate the propagation loss energy, so as to obtain the transmit power of the UE. Specifically: first, the UE obtains several parameters from the base station, including the reference received power P0 , partial path loss compensation factor α, and the reference transmit power PRS , and then, the UE calculates the propagation loss P according to the reference transmit power PRS and the received PUERcvPL ＝PRS –PUERcv , finally, the transmit power of each radio bearer of UE is PUE ＝min{PMax , 10lgM+P0 +αPPL }, where PMax is the maximum transmit power, and M is the radio bearer's number.
由上述方案可知，上述方案仅考虑UE到服务小区基站的传输损耗，通过部分路损补偿间接降低相邻小区的干扰，由上述PUE的计算公式中的部分路损补偿因子α可知，上述方案认为UE到服务小区基站和到相邻小区基站的传输损耗是固定的关系，由此按照相同的比例补偿UE到服务小区基站和相邻小区基站的传输损耗，但是，实际上，UE到服务小区基站和到相邻小区基站的传输损耗并不一定是固定的关系，完全有可能存在UE到服务小区基站的传输损耗小，但是到相邻小区基站的传输损耗大，也可能存在UE到服务小区基站的传输损耗大，但是到相邻小区基站的传输损耗小。因此，上述按照相同的比例补偿UE到服务小区基站和相邻小区基站的传输损耗并不能达到较好的性能，由此造成服务小区的平均吞吐率和边缘吞吐率不高。It can be known from the above scheme that the above scheme only considers the transmission loss from the UE to the base station of the serving cell, and indirectly reduces the interference of adjacent cells through partial path loss compensation. It can be seen from the partial path loss compensation factor α in the above calculation formula of PUE that the above scheme It is considered that the transmission loss from the UE to the base station of the serving cell and to the base station of the adjacent cell is fixed, so that the transmission loss from the UE to the base station of the serving cell and the base station of the adjacent cell is compensated in the same proportion. However, in fact, the transmission loss from the UE to the base station of the serving cell The relationship between the base station and the transmission loss to the base station of the adjacent cell is not necessarily fixed. It is entirely possible that the transmission loss from the UE to the base station of the serving cell is small, but the transmission loss to the base station of the adjacent cell is large, and there may also be a transmission loss from the UE to the serving cell. The transmission loss of the base station is large, but the transmission loss to the base station of the adjacent cell is small. Therefore, compensating the transmission loss from the UE to the base station of the serving cell and the base station of the adjacent cell according to the same ratio cannot achieve better performance, thus causing the average throughput rate and edge throughput rate of the serving cell to be low.
发明内容Contents of the invention
本发明实施例提供了发射功率控制方法、基站以及用户设备UE，能够通过功率控制同时提升服务小区的平均吞吐率和边缘吞吐率。Embodiments of the present invention provide a transmission power control method, a base station, and a user equipment UE, which can simultaneously improve the average throughput rate and edge throughput rate of a serving cell through power control.
有鉴于此，本发明第一方面提供了一种发射功率控制方法，包括：In view of this, the first aspect of the present invention provides a transmission power control method, including:
第一基站接收用户设备UE在服务小区发送的上行数据，所述服务小区由所述第一基站提供网络接入服务；The first base station receives uplink data sent by the user equipment UE in a serving cell, and the serving cell is provided with a network access service by the first base station;
所述第一基站根据所述上行数据确定所述UE的初始发射功率；The first base station determines the initial transmit power of the UE according to the uplink data;
所述第一基站获取所述UE到所述服务小区的第一传播路损参数，并从第二基站获取所述UE在相邻小区的干扰信息，所述相邻小区由所述第二基站提供网络接入服务；The first base station acquires a first propagation path loss parameter from the UE to the serving cell, and acquires interference information of the UE in a neighboring cell from a second base station, and the neighboring cell is controlled by the second base station Provide network access services;
所述第一基站根据所述UE的初始发射功率以及第一传播路损参数计算所述UE在所述服务小区的信号噪声参数SNR，并根据所述干扰信息计算干扰噪声参数INR；The first base station calculates the signal noise parameter SNR of the UE in the serving cell according to the initial transmit power of the UE and the first propagation path loss parameter, and calculates the interference noise parameter INR according to the interference information;
所述第一基站根据所述信号噪声参数SNR以及所述干扰噪声参数INR计算调整量；The first base station calculates an adjustment amount according to the signal noise parameter SNR and the interference noise parameter INR;
所述第一基站向所述UE发送所述调整量，以使得所述UE根据所述调整量调整发射功率。The first base station sends the adjustment amount to the UE, so that the UE adjusts transmit power according to the adjustment amount.
结合本发明第一方面，本发明第一方面第一实施方式包括：In combination with the first aspect of the present invention, the first embodiment of the first aspect of the present invention includes:
所述第一基站根据所述UE的初始发射功率以及第一传播路损参数计算所述UE在所述服务小区的信号噪声参数SNR包括：Calculating, by the first base station, the signal-to-noise parameter SNR of the UE in the serving cell according to the initial transmit power of the UE and the first propagation path loss parameter includes:
所述第一基站通过如下方式计算信号噪声参数SNR：The first base station calculates the signal-to-noise parameter SNR in the following manner:
SNR＝PUE–PPL–BRB–N0；SNR = PUE -PPL -BRB -N0 ;
所述PUE为所述初始发射功率，所述PPL为所述第一传播路损参数，所述BRB为每个无线承载的带宽，所述N0为底噪功率。The PUE is the initial transmission power, the PPL is the first propagation path loss parameter, the BRB is the bandwidth of each radio bearer, and the N0 is the noise floor power.
结合本发明第一方面第一实施方式，本发明第一方面第二实施方式包括：In combination with the first embodiment of the first aspect of the present invention, the second embodiment of the first aspect of the present invention includes:
所述第一基站根据所述干扰信息计算干扰噪声参数INR包括：The calculation of the interference noise parameter INR by the first base station according to the interference information includes:
所述第一基站通过如下方式计算干扰噪声参数INR：The first base station calculates the interference noise parameter INR in the following manner:
INR＝10lg(sum:k∈Γ(inrk))；INR＝10lg(sum:k∈Γ (inrk ));
所述Γ表示各相邻小区的集合，所述inrk为所述干扰信息，所述inrk为所述UE到相邻小区k的干扰强度的线性值；The Γ represents a set of neighboring cells, the inrk is the interference information, and the inrk is a linear value of the interference intensity from the UE to the neighboring cell k;
所述inrk通过如下方式计算得到：The inrk is calculated as follows:
INRk＝10lg(inrk)；INRk = 10lg(inrk );
所述INRk通过如下方式计算得到：The INRk is calculated as follows:
INRk＝PUE–PPL,k–BRB–N0；INRk =PUE -PPL,k -BRB -N0 ;
所述PPL,k为所述UE到相邻小区k的第二传播路损参数。The PPL,k is a second propagation path loss parameter from the UE to the neighboring cell k.
结合本发明第一方面第二实施方式，本发明第一方面第三实施方式包括：In combination with the second embodiment of the first aspect of the present invention, the third embodiment of the first aspect of the present invention includes:
所述第一基站根据所述信号噪声参数SNR以及所述干扰噪声参数INR计算调整量包括：The calculation of the adjustment amount by the first base station according to the signal noise parameter SNR and the interference noise parameter INR includes:
所述第一基站根据所述信号噪声参数SNR计算第一参数FS(SNR)，并根据所述干扰噪声参数INR计算第二参数FI(INR)；The first base station calculates a first parameter FS (SNR) according to the signal noise parameter SNR, and calculates a second parameter FI (INR) according to the interference noise parameter INR;
所述第一基站根据所述第一参数FS(SNR)以及第二参数FI(INR)计算所述调整量。The first base station calculates the adjustment amount according to the first parameter FS (SNR) and the second parameter FI (INR).
结合本发明第一方面第三实施方式，本发明第一方面第四实施方式包括：In combination with the third embodiment of the first aspect of the present invention, the fourth embodiment of the first aspect of the present invention includes:
所述第一基站根据所述信号噪声参数SNR计算第一参数FS(SNR)包括：The calculation of the first parameter FS (SNR) by the first base station according to the signal-to-noise parameter SNR includes:
若所述SNR小于下保护门限值SNRlow，则所述第一参数FS(SNR)为无穷大；If the SNR is less than the lower protection threshold SNRlow , the first parameter FS (SNR) is infinite;
若所述SNR大于上保护门限SNRsat，则所述第一参数FS(SNR)为0；If the SNR is greater than the upper protection threshold SNRsat , the first parameter FS (SNR) is 0;
若所述SNR小于所述上保护门限SNRsat，且大于或等于所述下保护门限SNRlow，则所述第一参数FS(SNR)为(SNRsat-SNR)的平方。If the SNR is smaller than the upper protection threshold SNRsat and greater than or equal to the lower protection threshold SNRlow , then the first parameter FS (SNR) is the square of (SNRsat −SNR).
结合本发明第一方面第三实施方式，本发明第一方面第四实施方式，本发明第一方面第五实施方式包括：In combination with the third embodiment of the first aspect of the present invention, the fourth embodiment of the first aspect of the present invention, and the fifth embodiment of the first aspect of the present invention include:
所述第一基站根据所述干扰噪声参数INR计算第二参数FI(INR)包括：Calculating the second parameter FI (INR) by the first base station according to the interference noise parameter INR includes:
若所述INR小于或等于门限值INRth，则所述第二参数FI(INR)为0；If the INR is less than or equal to the threshold value INRth , the second parameter FI (INR) is 0;
若所述INR大于门限值INRth，则所述第二参数FI(INR)为(INR-INRth)的平方。If the INR is greater than the threshold INRth , the second parameter FI (INR) is the square of (INR-INRth ).
结合本发明第一方面第五实施方式，本发明第一方面第六实施方式包括：In combination with the fifth embodiment of the first aspect of the present invention, the sixth embodiment of the first aspect of the present invention includes:
所述第一基站根据所述第一参数FS(SNR)以及第二参数FI(INR)计算所述调整量包括：Calculating the adjustment amount by the first base station according to the first parameter FS (SNR) and the second parameter FI (INR) includes:
所述第一基站通过如下公式计算目标发射功率PUE,2：The first base station calculates the target transmit power PUE,2 through the following formula:
min F(PUE,2)＝FS(SNR)+ζFI(INR)；min F(PUE,2 )=FS (SNR)+ζFI (INR);
所述ζ为预置的折中系数；The ζ is a preset compromise coefficient;
所述第一基站将所述PUE,2与所述PUE之间的差值作为所述调整量。The first base station uses a difference between the PUE,2 and the PUE as the adjustment amount.
有鉴于此，本发明第二方面提供了一种发射功率控制方法，包括：In view of this, the second aspect of the present invention provides a transmission power control method, including:
第二基站获取用户设备UE在相邻小区的干扰信息，所述相邻小区由所述第二基站提供网络接入服务；The second base station acquires interference information of the user equipment UE in a neighboring cell, and the neighboring cell is provided with a network access service by the second base station;
所述第二基站将所述干扰信息发送给第一基站，所述UE所在的服务小区由所述第一基站提供网络接入服务。The second base station sends the interference information to the first base station, and the serving cell where the UE is located is provided with network access services by the first base station.
结合本发明第二方面，本发明第二方面第一实施方式包括：In combination with the second aspect of the present invention, the first embodiment of the second aspect of the present invention includes:
所述发射功率控制方法还包括：The transmission power control method also includes:
所述第二基站获取所述UE到所述相邻小区的传播路损参数；acquiring, by the second base station, a propagation path loss parameter from the UE to the neighboring cell;
所述第二基站将所述传播路损参数发送给第一基站。The second base station sends the propagation path loss parameter to the first base station.
有鉴于此，本发明第三方面提供了一种发射功率控制方法，包括：In view of this, the third aspect of the present invention provides a transmission power control method, including:
用户设备UE在服务小区向第一基站发送上行数据，所述服务小区由所述第一基站提供网络接入服务；The user equipment UE sends uplink data to the first base station in the serving cell, and the serving cell is provided with network access services by the first base station;
所述UE接收所述第一基站发送的调整量，所述调整量为所述第一基站根据信号噪声参数SNR以及干扰噪声参数SNR计算得到的调整量，所述SNR为所述第一基站根据所述UE的初始发射功率以及传播路损参数计算得到的SNR，所述干扰噪声参数为所述第一基站根据干扰信息计算得到的INR，所述初始发射功率为所述第一基站根据所述第一上行数据确定得到的发射功率，所述干扰信息为第二基站获取的所述UE在相邻小区的干扰信息，所述第二基站将所述干扰信息发送给所述第一基站，所述相邻小区由所述第二基站提供网络接入服务；The UE receives the adjustment amount sent by the first base station, the adjustment amount is the adjustment amount calculated by the first base station according to the signal noise parameter SNR and the interference noise parameter SNR, and the SNR is the adjustment amount calculated by the first base station according to The initial transmission power of the UE and the SNR calculated by the propagation path loss parameter, the interference noise parameter is the INR calculated by the first base station according to the interference information, and the initial transmission power is the INR calculated by the first base station according to the The transmission power obtained by determining the first uplink data, the interference information is the interference information of the UE in the adjacent cell acquired by the second base station, and the second base station sends the interference information to the first base station, so The adjacent cell is provided with network access services by the second base station;
所述UE根据所述调整量调整发射功率。The UE adjusts transmit power according to the adjustment amount.
结合本发明第三方面，本发明第三方面第一实施方式包括：In combination with the third aspect of the present invention, the first embodiment of the third aspect of the present invention includes:
所述UE根据所述调整量调整发射功率包括：The UE adjusting transmit power according to the adjustment amount includes:
所述UE通过如下公式调整发射功率PUE,1：The UE adjusts the transmit power PUE,1 by the following formula:
PUE,1＝min{PMax，10lgM+P0+αPPL+F}；PUE,1 =min{PMax ,10lgM+P0 +αPPL +F};
所述PMax为最大发射功率，所述M为无线承载的个数，所述P0为参考接收功率，所述α为部分路损补偿因子，所述F为调整量。The PMax is the maximum transmission power, the M is the number of radio bearers, the P0 is the reference received power, the α is a partial path loss compensation factor, and the F is an adjustment amount.
有鉴于此，本发明第四方面提供了一种基站，作为第一基站使用，包括：In view of this, the fourth aspect of the present invention provides a base station used as a first base station, including:
接收单元，用于接收用户设备UE在服务小区发送的上行数据，所述服务小区由所述第一基站提供网络接入服务；a receiving unit, configured to receive uplink data sent by a user equipment UE in a serving cell, where the serving cell is provided with network access services by the first base station;
确定单元，用于根据所述上行数据确定所述UE的初始发射功率；a determining unit, configured to determine the initial transmit power of the UE according to the uplink data;
获取单元，用于获取所述UE到所述服务小区的第一传播路损参数，并从第二基站获取所述UE在相邻小区的干扰信息，所述相邻小区由所述第二基站提供网络接入服务；an acquiring unit, configured to acquire a first propagation path loss parameter from the UE to the serving cell, and acquire interference information of the UE in a neighboring cell from a second base station, and the neighboring cell is controlled by the second base station Provide network access services;
第一计算单元，用于根据所述UE的初始发射功率以及第一传播路损参数计算所述UE在所述服务小区的信号噪声参数SNR，并根据所述干扰信息计算干扰噪声参数INR；A first calculation unit, configured to calculate a signal-to-noise parameter SNR of the UE in the serving cell according to the initial transmission power of the UE and a first propagation path loss parameter, and calculate an interference noise parameter INR according to the interference information;
第二计算单元，用于根据所述信号噪声参数SNR以及所述干扰噪声参数INR计算调整量；A second calculation unit, configured to calculate an adjustment amount according to the signal noise parameter SNR and the interference noise parameter INR;
发送单元，用于向所述UE发送所述调整量，以使得所述UE根据所述调整量调整发射功率。A sending unit, configured to send the adjustment amount to the UE, so that the UE adjusts transmit power according to the adjustment amount.
结合本发明第四方面，本发明第四方面第一实施方式包括：In combination with the fourth aspect of the present invention, the first embodiment of the fourth aspect of the present invention includes:
所述第一计算单元，具体用于通过如下方式计算信号噪声参数SNR：The first calculation unit is specifically used to calculate the signal-to-noise parameter SNR in the following manner:
SNR＝PUE–PPL–BRB–N0；SNR = PUE -PPL -BRB -N0 ;
所述PUE为所述初始发射功率，所述PPL为所述第一传播路损参数，所述BRB为每个无线承载的带宽，所述N0为底噪功率。The PUE is the initial transmission power, the PPL is the first propagation path loss parameter, the BRB is the bandwidth of each radio bearer, and the N0 is the noise floor power.
结合本发明第四方面，本发明第四方面第二实施方式包括：In combination with the fourth aspect of the present invention, the second embodiment of the fourth aspect of the present invention includes:
所述第一计算单元，具体用于通过如下方式计算干扰噪声参数INR：The first calculation unit is specifically configured to calculate the interference noise parameter INR in the following manner:
INR＝10lg(sum:k∈Γ(inrk))；INR＝10lg(sum:k∈Γ (inrk ));
所述Γ表示各相邻小区的集合，所述inrk为所述干扰信息，所述inrk为所述UE到相邻小区k的干扰强度的线性值；The Γ represents a set of neighboring cells, the inrk is the interference information, and the inrk is a linear value of the interference intensity from the UE to the neighboring cell k;
所述inrk通过如下方式计算得到：The inrk is calculated as follows:
INRk＝10lg(inrk)；INRk = 10lg(inrk );
所述INRk通过如下方式计算得到：The INRk is calculated as follows:
INRk＝PUE–PPL,k–BRB–N0；INRk =PUE -PPL,k -BRB -N0 ;
所述PPL,k为所述UE到相邻小区k的第二传播路损参数。The PPL,k is a second propagation path loss parameter from the UE to the neighboring cell k.
结合本发明第四方面第二实施方式，本发明第四方面第三实施方式包括：In combination with the second embodiment of the fourth aspect of the present invention, the third embodiment of the fourth aspect of the present invention includes:
所述第二计算单元，具体用于根据所述信号噪声参数SNR计算第一参数FS(SNR)，并根据所述干扰噪声参数INR计算第二参数FI(INR)；根据所述第一参数FS(SNR)以及第二参数FI(INR)计算所述调整量。The second calculation unit is specifically configured to calculate a first parameter FS (SNR) according to the signal noise parameter SNR, and calculate a second parameter FI (INR) according to the interference noise parameter INR; according to the first The parameter FS (SNR) and the second parameter FI (INR) calculate the adjustment.
结合本发明第四方面第三实施方式，本发明第四方面第四实施方式包括：In combination with the third embodiment of the fourth aspect of the present invention, the fourth embodiment of the fourth aspect of the present invention includes:
所述第二计算单元，还具体用于若所述SNR小于下保护门限值SNRlow，则所述第一参数FS(SNR)为无穷大；若所述SNR大于上保护门限SNRsat，则所述第一参数FS(SNR)为0；若所述SNR小于所述上保护门限SNRsat，且大于或等于所述下保护门限SNRlow，则所述第一参数FS(SNR)为(SNRsat-SNR)的平方。The second calculation unit is also specifically configured to: if the SNR is less than the lower protection threshold SNRlow , then the first parameter FS (SNR) is infinite; if the SNR is greater than the upper protection threshold SNRsat , then The first parameter FS (SNR) is 0; if the SNR is less than the upper protection threshold SNRsat and greater than or equal to the lower protection threshold SNRlow , then the first parameter FS (SNR) is The square of (SNRsat -SNR).
结合本发明第四方面第三实施方式，本发明第四方面第四实施方式，本发明第四方面第五实施方式包括：In combination with the third embodiment of the fourth aspect of the present invention, the fourth embodiment of the fourth aspect of the present invention, and the fifth embodiment of the fourth aspect of the present invention include:
所述第二计算单元，还具体用于若所述INR小于或等于门限值INRth，则所述第二参数FI(INR)为0；若所述INR大于门限值INRth，则所述第二参数FI(INR)为(INR-INRth)的平方。The second calculation unit is further specifically configured to: if the INR is less than or equal to a threshold value INRth , then the second parameter FI (INR) is 0; if the INR is greater than the threshold value INRth , then The second parameter FI (INR) is the square of (INR-INRth ).
结合本发明第四方面第五实施方式，本发明第四方面第六实施方式包括：In combination with the fifth embodiment of the fourth aspect of the present invention, the sixth embodiment of the fourth aspect of the present invention includes:
所述第二计算单元，具体用于通过如下公式计算目标发射功率PUE,2：The second calculation unit is specifically configured to calculate the target transmission power PUE,2 through the following formula:
min F(PUE,2)＝FS(SNR)+ζFI(INR)；所述ζ为预置的折中系数；将所述PUE,2与所述PUE之间的差值作为所述调整量。min F(PUE,2 )=FS (SNR)+ζFI (INR); the ζ is a preset compromise coefficient; the difference between the PUE,2 and the PUE is taken as The adjustment amount.
有鉴于此，本发明第五方面提供了一种基站，作为第二基站使用，包括：In view of this, the fifth aspect of the present invention provides a base station used as a second base station, including:
获取单元，用于获取用户设备UE在相邻小区的干扰信息，所述相邻小区由所述第二基站提供网络接入服务；An obtaining unit, configured to obtain interference information of the user equipment UE in a neighboring cell, where the network access service is provided by the second base station in the neighboring cell;
发送单元，用于将所述干扰信息发送给第一基站，所述UE所在的服务小区由所述第一基站提供网络接入服务。A sending unit, configured to send the interference information to a first base station, and the serving cell where the UE is located is provided with a network access service by the first base station.
结合本发明第五方面，本发明第五方面第一实施方式包括：In combination with the fifth aspect of the present invention, the first embodiment of the fifth aspect of the present invention includes:
所述获取单元，还用于获取所述UE到所述相邻小区的传播路损参数；The acquiring unit is further configured to acquire a propagation path loss parameter from the UE to the adjacent cell;
所述发送单元，还用于将所述传播路损参数发送给第一基站。The sending unit is further configured to send the propagation path loss parameter to the first base station.
有鉴于此，本发明第六方面提供了一种用户设备UE，包括：In view of this, the sixth aspect of the present invention provides a user equipment UE, including:
发送单元，用于在服务小区向第一基站发送上行数据，所述服务小区由所述第一基站提供网络接入服务；a sending unit, configured to send uplink data to a first base station in a serving cell, and the serving cell is provided with network access services by the first base station;
接收单元，用于接收所述第一基站发送的调整量，所述调整量为所述第一基站根据信号噪声参数SNR以及干扰噪声参数SNR计算得到的调整量，所述SNR为所述第一基站根据所述UE的初始发射功率以及传播路损参数计算得到的SNR，所述干扰噪声参数为所述第一基站根据干扰信息计算得到的INR，所述初始发射功率为所述第一基站根据所述第一上行数据确定得到的发射功率，所述干扰信息为第二基站获取的所述UE在相邻小区的干扰信息，所述第二基站将所述干扰信息发送给所述第一基站，所述相邻小区由所述第二基站提供网络接入服务；a receiving unit, configured to receive an adjustment amount sent by the first base station, the adjustment amount is an adjustment amount calculated by the first base station according to a signal noise parameter SNR and an interference noise parameter SNR, and the SNR is the first The SNR calculated by the base station according to the initial transmission power of the UE and the propagation path loss parameter, the interference noise parameter is the INR calculated by the first base station according to the interference information, and the initial transmission power is the INR calculated by the first base station according to the The transmission power obtained by determining the first uplink data, the interference information is the interference information of the UE in the adjacent cell acquired by the second base station, and the second base station sends the interference information to the first base station , the adjacent cell is provided with a network access service by the second base station;
调整单元，用于根据所述调整量调整发射功率。An adjustment unit, configured to adjust the transmission power according to the adjustment amount.
结合本发明第六方面，本发明第六方面第一实施方式包括：In combination with the sixth aspect of the present invention, the first embodiment of the sixth aspect of the present invention includes:
所述调整单元，具体用于通过如下公式调整发射功率PUE,1：The adjustment unit is specifically configured to adjust the transmission power PUE,1 by the following formula:
PUE,1＝min{PMax，10lgM+P0+αPPL+F}；PUE,1 =min{PMax ,10lgM+P0 +αPPL +F};
所述PMax为最大发射功率，所述M为无线承载的个数，所述P0为参考接收功率，所述α为部分路损补偿因子，所述F为调整量。The PMax is the maximum transmission power, the M is the number of radio bearers, the P0 is the reference received power, the α is a partial path loss compensation factor, and the F is an adjustment amount.
从以上技术方案可以看出，本发明实施例具有以下优点：本发明通过第一基站获取UE在服务小区的第一传播路损参数来考虑UE到第一基站的传输损耗，另外，通过第一基站从第二基站获取UE在相邻小区的干扰信息来考虑UE对第二基站的干扰，第一基站在综合考虑UE到第一基站的传输损耗以及UE对第二基站的干扰后，第一基站计算出调整量，然后向UE发送调整量，使得UE根据调整量调整发射功率，由此，本发明能够通过功率控制同时提升服务小区的平均吞吐率和边缘吞吐率。It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages: the present invention considers the transmission loss from the UE to the first base station by obtaining the first propagation path loss parameter of the UE in the serving cell by the first base station; The base station obtains the interference information of the UE in the adjacent cell from the second base station to consider the interference of the UE to the second base station. After the first base station comprehensively considers the transmission loss from the UE to the first base station and the interference from the UE to the second base station, the first The base station calculates the adjustment amount, and then sends the adjustment amount to the UE, so that the UE adjusts the transmission power according to the adjustment amount. Therefore, the present invention can simultaneously improve the average throughput rate and edge throughput rate of the serving cell through power control.
附图说明Description of drawings
图1为网络干扰示意图；Figure 1 is a schematic diagram of network interference;
图2为本发明实施例系统架构示意图；Fig. 2 is a schematic diagram of the system architecture of the embodiment of the present invention;
图3为本发明实施例发射功率控制方法一个实施例示意图；FIG. 3 is a schematic diagram of an embodiment of a transmission power control method according to an embodiment of the present invention;
图4为本发明实施例发射功率控制方法另一个实施例示意图；FIG. 4 is a schematic diagram of another embodiment of a transmission power control method according to an embodiment of the present invention;
图5为本发明实施例发射功率控制方法另一个实施例示意图；FIG. 5 is a schematic diagram of another embodiment of a transmission power control method according to an embodiment of the present invention;
图6为本发明实施例第一基站结构示意图；FIG. 6 is a schematic structural diagram of a first base station according to an embodiment of the present invention;
图7为本发明实施例第二基站结构示意图；FIG. 7 is a schematic structural diagram of a second base station according to an embodiment of the present invention;
图8为本发明实施例用户设备UE结构示意图；FIG. 8 is a schematic structural diagram of a user equipment UE according to an embodiment of the present invention;
图9为本发明实施例服务器结构示意图。FIG. 9 is a schematic structural diagram of a server according to an embodiment of the present invention.
具体实施方式detailed description
本发明实施例提供了发射功率控制方法、基站以及用户设备UE，能够通过功率控制同时提升服务小区的平均吞吐率和边缘吞吐率。Embodiments of the present invention provide a transmission power control method, a base station, and a user equipment UE, which can simultaneously improve the average throughput rate and edge throughput rate of a serving cell through power control.
为了便于理解本发明的技术方案，下面对本发明发射功率控制方法的原理进行如下说明：In order to facilitate the understanding of the technical solution of the present invention, the principle of the transmission power control method of the present invention is described as follows:
由于现有方案仅考虑UE到服务小区基站的传输损耗，本发明为了提升服务小区的平均吞吐率和边缘吞吐率，本发明综合考虑UE到服务小区基站的传输损耗以及对相邻小区的干扰，请参阅图2，图2为本发明发射功率控制方法的系统架构图，图2中，UE归属于基站2，UE对邻区基站1以及邻区基站2产生一定的干扰，基站之间可以进行有限的信息交互。本发明需要在UE的信号质量和到相邻小区的干扰影响之间找到平衡点，保证系统平均吞吐率和边缘吞吐率。Since the existing solution only considers the transmission loss from the UE to the base station of the serving cell, in order to improve the average throughput rate and edge throughput rate of the serving cell, the present invention comprehensively considers the transmission loss from the UE to the base station of the serving cell and the interference to adjacent cells, Please refer to Fig. 2. Fig. 2 is a system architecture diagram of the transmission power control method of the present invention. In Fig. 2, UE belongs to base station 2, and UE generates certain interference to neighboring cell base station 1 and neighboring cell base station 2. Limited information exchange. The present invention needs to find a balance point between the signal quality of the UE and the interference impact to adjacent cells, so as to ensure the average throughput rate and edge throughput rate of the system.
下面通过实施例对本发明进行描述，请参阅图3，本发明实施例中发射功率控制方法的一个实施例包括：The present invention is described below through an embodiment, please refer to FIG. 3, an embodiment of the transmission power control method in the embodiment of the present invention includes:
101、第一基站接收用户设备UE在服务小区发送的上行数据，该服务小区由第一基站提供网络接入服务；101. The first base station receives uplink data sent by the user equipment UE in a serving cell, and the serving cell is provided with a network access service by the first base station;
本实施例中，第一基站为服务小区提供网络接入服务，服务小区内存在用户设备UE，UE向基站发送上行数据，第一基站接收该上行数据。In this embodiment, the first base station provides a network access service for the serving cell, there is a user equipment UE in the serving cell, the UE sends uplink data to the base station, and the first base station receives the uplink data.
需要说明的是，服务小区周围存在着相邻小区，相邻小区为一个或者多个。It should be noted that there are adjacent cells around the serving cell, and there are one or more adjacent cells.
另外，UE接入网络时，UE会测量到周围各小区的信道增益，并选择具有最强信道增益的小区作为服务小区。In addition, when the UE accesses the network, the UE will measure the channel gains of the surrounding cells, and select the cell with the strongest channel gain as the serving cell.
102、第一基站根据该上行数据确定UE的初始发射功率；102. The first base station determines the initial transmit power of the UE according to the uplink data;
第一基站接收到上行数据，根据该上行数据确定UE的初始发射功率。The first base station receives the uplink data, and determines the initial transmit power of the UE according to the uplink data.
需要说明的是，UE可以通过如下方式计算初始发射功率：It should be noted that the UE can calculate the initial transmit power in the following manner:
首先UE从基站获取若干参数，包括参考接收功率P0，部分路损补偿因子α，参考发射功率PRS，然后，UE根据参考发射功率PRS以及接收到的PUERcv计算传播损耗PPL＝PRS–PUERcv，最后，UE的每个无线承载的发射功率为PUE＝min{PMax，10lgM+P0+αPPL}，其中PMax为最大发射功率，M为无线承载的个数。First, the UE obtains several parameters from the base station, including reference received power P0 , partial path loss compensation factor α, and reference transmit power PRS . Then, the UE calculates the propagation loss PPL =P according to the reference transmit power PRS and the received PUERcvRS -PUERcv , finally, the transmit power of each radio bearer of the UE is PUE =min{PMax , 10lgM+P0 +αPPL }, where PMax is the maximum transmit power, and M is the number of radio bearers.
UE在计算初始发射功率后，通过初始发射功率向基站发送上行数据，基站通过接收上行数据，确定初始发射功率。After calculating the initial transmission power, the UE sends uplink data to the base station through the initial transmission power, and the base station determines the initial transmission power by receiving the uplink data.
103、第一基站获取UE到服务小区的第一传播路损参数，并从第二基站获取UE在相邻小区的干扰信息，该相邻小区由第二基站提供网络接入服务；103. The first base station acquires a first propagation path loss parameter from the UE to the serving cell, and acquires interference information of the UE in an adjacent cell from the second base station, and the adjacent cell is provided with a network access service by the second base station;
第一传播路损参数为上述PPL，其中PPL＝PRS–PUERcv，干扰信息为UE到相邻小区k的干扰强度的线性值，若相邻小区k由第二基站提供网络接入服务，则第一基站从第二基站获取UE在相邻小区的干扰信息。The first propagation path loss parameter is the above-mentioned PPL , where PPL =PRS -PUERcv , and the interference information is the linear value of the interference intensity from the UE to the adjacent cell k. If the adjacent cell k is provided with network access by the second base station service, the first base station acquires interference information of the UE in a neighboring cell from the second base station.
104、第一基站根据UE的初始发射功率以及第一传播路损参数计算UE在服务小区的信号噪声参数SNR，并根据干扰信息计算干扰噪声参数INR；104. The first base station calculates the signal noise parameter SNR of the UE in the serving cell according to the initial transmit power of the UE and the first propagation path loss parameter, and calculates the interference noise parameter INR according to the interference information;
第一基站在确定初始发射功率，并获取第一传播路损参数以及干扰信息后，第一基站根据UE的初始发射功率以及第一传播路损参数计算UE在服务小区的信号噪声参数SNR，并根据干扰信息计算干扰噪声参数INR。After the first base station determines the initial transmission power and obtains the first propagation path loss parameter and the interference information, the first base station calculates the UE's signal-to-noise parameter SNR in the serving cell according to the UE's initial transmission power and the first propagation path loss parameter, and Calculate the interference noise parameter INR according to the interference information.
可选的，在本发明的一些实施例中，第一基站根据UE的初始发射功率以及第一传播路损参数计算UE在服务小区的信号噪声参数SNR包括：Optionally, in some embodiments of the present invention, the first base station calculating the signal-to-noise parameter SNR of the UE in the serving cell according to the initial transmit power of the UE and the first propagation path loss parameter includes:
第一基站通过如下方式计算信号噪声参数SNR：The first base station calculates the signal-to-noise parameter SNR in the following manner:
SNR＝PUE–PPL–BRB–N0；SNR = PUE -PPL -BRB -N0 ;
其中PUE为初始发射功率，PPL为第一传播路损参数，BRB为每个无线承载的带宽，N0为底噪功率。Where PUE is the initial transmission power, PPL is the first propagation path loss parameter, BRB is the bandwidth of each radio bearer, and N0 is the noise floor power.
需要说明的是，在LTE系统中，BRB的取值可以为180kHz，也就是52.55dB，此时N0的单位为dBm/Hz，可以通过现有技术中的底噪测量方法获取N0。It should be noted that in the LTE system, the value of BRB can be 180kHz, that is, 52.55dB. At this time, the unit of N0 is dBm/Hz, and N 0 can be obtained through the noise floor measurement method in the prior art.
第一基站通过如下方式计算干扰噪声参数INR：The first base station calculates the interference noise parameter INR in the following manner:
INR＝10lg(sum:k∈Γ(inrk))；INR＝10lg(sum:k∈Γ (inrk ));
其中Γ表示各相邻小区的集合，inrk为干扰信息，inrk为UE到相邻小区k的干扰强度的线性值，INR为各干扰信息的总和。Where Γ represents a set of neighboring cells, inrk is interference information, inrk is a linear value of interference intensity from UE to neighboring cell k, and INR is the sum of all interference information.
其中inrk通过如下方式计算得到：where inrk is calculated as follows:
INRk＝10lg(inrk)；INRk = 10lg(inrk );
上述INRk通过如下方式计算得到：The above INRk is calculated as follows:
INRk＝PUE–PPL,k–BRB–N0；INRk =PUE -PPL,k -BRB -N0 ;
上述PPL,k为UE到相邻小区k的第二传播路损参数。The above PPL,k is the second propagation path loss parameter from the UE to the neighboring cell k.
需要说明的是，上述第二传播路损参数可以采用与第一传播路损参数类似的方法得到。It should be noted that, the above-mentioned second propagation path loss parameter may be obtained using a method similar to that of the first propagation path loss parameter.
105、第一基站根据信号噪声参数SNR以及干扰噪声参数INR计算调整量；105. The first base station calculates the adjustment amount according to the signal noise parameter SNR and the interference noise parameter INR;
第一基站在计算得到信号噪声参数SNR和干扰噪声参数INR后，第一基站根据信号噪声参数SNR以及干扰噪声参数INR计算调整量。After the first base station calculates the signal noise parameter SNR and the interference noise parameter INR, the first base station calculates the adjustment amount according to the signal noise parameter SNR and the interference noise parameter INR.
可选的，在本发明的一些实施例中，第一基站根据信号噪声参数SNR以及干扰噪声参数INR计算调整量包括：Optionally, in some embodiments of the present invention, the first base station calculating the adjustment amount according to the signal noise parameter SNR and the interference noise parameter INR includes:
第一基站根据信号噪声参数SNR计算第一参数FS(SNR)，并根据干扰噪声参数INR计算第二参数FI(INR)；The first base station calculates the first parameter FS (SNR) according to the signal noise parameter SNR, and calculates the second parameter FI (INR) according to the interference noise parameter INR;
第一基站根据第一参数FS(SNR)以及第二参数FI(INR)计算调整量。The first base station calculates the adjustment amount according to the first parameter FS (SNR) and the second parameter FI (INR).
进一步可选的，在本发明的一些实施例中，第一基站根据信号噪声参数SNR计算第一参数FS(SNR)包括：Further optionally, in some embodiments of the present invention, the calculation of the first parameter FS (SNR) by the first base station according to the signal-to-noise parameter SNR includes:
若SNR小于下保护门限值SNRlow，则第一参数FS(SNR)为无穷大；If the SNR is less than the lower protection threshold SNRlow , the first parameter FS (SNR) is infinite;
若SNR大于上保护门限SNRsat，则第一参数FS(SNR)为0；If the SNR is greater than the upper protection threshold SNRsat , the first parameter FS (SNR) is 0;
若SNR小于上保护门限SNRsat，且大于或等于下保护门限SNRlow，则第一参数FS(SNR)为(SNRsat-SNR)的平方。If the SNR is less than the upper protection threshold SNRsat and greater than or equal to the lower protection threshold SNRlow , then the first parameter FS (SNR) is the square of (SNRsat -SNR).
上述第一参数FS(SNR)可以通过如下函数来表示：The above-mentioned first parameter FS (SNR) can be represented by the following function:
FS(SNR)＝{FS(SNR)={
∞，SNR<SNRlow∞, SNR<SNRlow
(SNRsat–SNR)2，SNRlow≤SNR<SNRsat(SNRsat–SNR)2 , SNRlow≤SNR<SNRsat
0，SNR>SNRsat0, SNR>SNRsat
}}
需要说明的是，上述SNRlow和SNRsat可以通过仿真获取。It should be noted that the above SNRlow and SNRsat can be obtained through simulation.
进一步可选的，在本发明的一些实施例中，第一基站根据干扰噪声参数INR计算第二参数FI(INR)包括：Further optionally, in some embodiments of the present invention, the calculation of the second parameter FI (INR) by the first base station according to the interference noise parameter INR includes:
若INR小于或等于门限值INRth，则第二参数FI(INR)为0；If the INR is less than or equal to the threshold value INRth , the second parameter FI (INR) is 0;
若INR大于门限值INRth，则第二参数FI(INR)为(INR-INRth)的平方。If the INR is greater than the threshold INRth , the second parameter FI (INR) is the square of (INR-INRth ).
上述第二参数FI(INR)可以通过如下函数来表示：The above-mentioned second parameter FI (INR) can be represented by the following function:
FI(INR)＝{FI(INR)={
0，INR≤INRth0, INR≤INRth
(INR–INRth)2，INR>INRth(INR–INRth)2 , INR>INRth
}}
进一步可选的，第一基站根据第一参数FS(SNR)以及第二参数FI(INR)计算调整量包括：Further optionally, calculating the adjustment amount by the first base station according to the first parameter FS (SNR) and the second parameter FI (INR) includes:
第一基站通过如下公式计算目标发射功率PUE,2：The first base station calculates the target transmit power PUE,2 by the following formula:
min F(PUE,2)＝FS(SNR)+ζFI(INR)；min F(PUE,2 )=FS (SNR)+ζFI (INR);
其中ζ为预置的折中系数；Where ζ is a preset compromise coefficient;
第一基站将PUE,2与PUE之间的差值作为调整量。The first base station uses the difference between PUE,2 and PUE as the adjustment amount.
需要说明的是，ζ可以通过仿真获取，调整量F＝PUE,2–PUE。It should be noted that ζ can be obtained through simulation, and the adjustment amount F=PUE,2 −PUE .
106、第一基站向UE发送调整量，以使得UE根据调整量调整发射功率。106. The first base station sends an adjustment amount to the UE, so that the UE adjusts transmit power according to the adjustment amount.
第一基站在计算调整量后，第一基站向UE发送调整量，UE在接收到调整量后，根据调整量调整发射功率。After the first base station calculates the adjustment amount, the first base station sends the adjustment amount to the UE, and the UE adjusts transmit power according to the adjustment amount after receiving the adjustment amount.
需要说明的是，UE可以按照如下公式调整发射功率：It should be noted that the UE can adjust the transmit power according to the following formula:
PUE,1＝min{PMax，10lgM+P0+αPPL+F}；其中F为调整量。PUE,1 =min{PMax , 10lgM+P0 +αPPL +F}; where F is the adjustment amount.
本实施例中，本发明通过第一基站获取UE在服务小区的第一传播路损参数来考虑UE到第一基站的传输损耗，另外，通过第一基站从第二基站获取UE在相邻小区的干扰信息来考虑UE对第二基站的干扰，第一基站在综合考虑UE到第一基站的传输损耗以及UE对第二基站的干扰后，第一基站计算出调整量，然后向UE发送调整量，使得UE根据调整量调整发射功率，由此，本发明能够通过功率控制同时提升服务小区的平均吞吐率和边缘吞吐率。In this embodiment, the present invention considers the transmission loss from the UE to the first base station by obtaining the first propagation path loss parameter of the UE in the serving cell through the first base station. The interference information of the UE to the second base station is considered. After the first base station considers the transmission loss from the UE to the first base station and the interference from the UE to the second base station, the first base station calculates the adjustment amount, and then sends the adjustment to the UE amount, so that the UE adjusts the transmission power according to the adjustment amount, thus, the present invention can simultaneously improve the average throughput rate and the edge throughput rate of the serving cell through power control.
上面从第一基站的角度对本发明发射功率控制方法进行了描述，下面从第二基站的角度对本发明发射功率控制方法进行描述，请参阅图4，本发明实施例中发射功率控制方法的另一个实施例包括：The transmission power control method of the present invention is described above from the perspective of the first base station, and the transmission power control method of the present invention is described below from the perspective of the second base station. Please refer to FIG. 4, another example of the transmission power control method in the embodiment of the present invention Examples include:
201、第二基站获取用户设备UE在相邻小区的干扰信息，该相邻小区由第二基站提供网络接入服务；201. The second base station acquires interference information of the user equipment UE in a neighboring cell, and the neighboring cell is provided with a network access service by the second base station;
本实施例中，归属于第一基站的用户设备UE在相邻小区产生干扰信息，该相邻小区由第二基站提供网络接入服务，第二基站获取该干扰信息。In this embodiment, the user equipment UE belonging to the first base station generates interference information in a neighboring cell, the neighboring cell is provided with a network access service by the second base station, and the second base station acquires the interference information.
需要说明的是，第二基站是范指，并不是指第二基站只是唯一一个基站，在实际应用中，指的是可以交互信息的相邻基站，相邻基站有多个，第二基站就有多个，相邻基站若仅有一个，则此时第二基站仅为一个(此时第二基站仅为一个基站，为一种特殊的情况)。It should be noted that the second base station refers to a range and does not mean that the second base station is just the only base station. In practical applications, it refers to adjacent base stations that can exchange information. If there are multiple adjacent base stations, the second base station is There are multiple base stations, and if there is only one adjacent base station, then there is only one second base station at this time (the second base station is only one base station at this time, which is a special case).
202、第二基站将干扰信息发送给第一基站，该UE所在的服务小区由第一基站提供网络接入服务。202. The second base station sends interference information to the first base station, and the serving cell where the UE is located is provided with network access services by the first base station.
第二基站在获取干扰信息后，第二基站将该干扰信息发送给第一基站，其中UE所在的服务小区由第一基站提供网络接入服务。After the second base station acquires the interference information, the second base station sends the interference information to the first base station, wherein the serving cell where the UE is located is provided with network access services by the first base station.
可选的，在本发明的一些实施例中，还包括：Optionally, in some embodiments of the present invention, it also includes:
第二基站获取UE到相邻小区的传播路损参数；The second base station acquires a propagation path loss parameter from the UE to the adjacent cell;
第二基站将传播路损参数发送给第一基站。The second base station sends the propagation path loss parameter to the first base station.
可以理解的是，第一基站在获取干扰信息以及传播路损参数后，可以依据干扰信息和传播路损参数以及自身获得的其他参数计算调整量。It can be understood that after the first base station acquires the interference information and propagation path loss parameters, it may calculate the adjustment amount according to the interference information, propagation path loss parameters and other parameters obtained by itself.
本实施例中，第二基站获取干扰信息，将该干扰信息发送给第一基站，便于第一基站根据干扰信息以及自身获得的其他参数计算调整量，使得UE根据调整量调整发射功率。In this embodiment, the second base station obtains the interference information, and sends the interference information to the first base station, so that the first base station can calculate the adjustment amount according to the interference information and other parameters obtained by itself, so that the UE adjusts the transmission power according to the adjustment amount.
上面从第一基站以及第二基站的角度对本发明发射功率控制方法进行了描述，下面从用户设备UE的角度对本发明发射功率控制方法进行描述，请参阅图5，本发明实施例中发射功率控制方法的另一个实施例包括：The transmission power control method of the present invention is described above from the perspective of the first base station and the second base station, and the transmission power control method of the present invention is described below from the perspective of the user equipment UE. Please refer to FIG. 5 , the transmission power control method in the embodiment of the present invention Another embodiment of the method includes:
301、用户设备UE在服务小区向第一基站发送上行数据，该服务小区由第一基站提供网络接入服务；301. The user equipment UE sends uplink data to the first base station in a serving cell, and the serving cell is provided with a network access service by the first base station;
本实施例中，当UE接入网络时，UE测量周围各小区的信道增益，并且选取具有最强信道增益的小区作为服务小区，UE确定服务小区后，UE在服务小区向第一基站发送上行数据，该服务小区由第一基站提供网络接入服务。In this embodiment, when the UE accesses the network, the UE measures the channel gains of the surrounding cells, and selects the cell with the strongest channel gain as the serving cell. After the UE determines the serving cell, the UE sends an uplink message to the first base station in the serving cell. data, the serving cell is provided with network access services by the first base station.
302、UE接收第一基站发送的调整量；302. The UE receives the adjustment amount sent by the first base station;
UE在向第一基站发送上行数据后，UE接收第一基站发送的调整量。After the UE sends the uplink data to the first base station, the UE receives the adjustment amount sent by the first base station.
需要说明的是，该调整量为第一基站根据信号噪声参数SNR以及干扰噪声参数SNR计算得到的调整量，该SNR为第一基站根据UE的初始发射功率以及传播路损参数计算得到的SNR，该干扰噪声参数为第一基站根据干扰信息计算得到的INR，该初始发射功率为第一基站根据第一上行数据确定得到的发射功率，该干扰信息为第二基站获取的UE在相邻小区的干扰信息，该第二基站将干扰信息发送给第一基站，该相邻小区由第二基站提供网络接入服务；It should be noted that the adjustment amount is the adjustment amount calculated by the first base station according to the signal noise parameter SNR and the interference noise parameter SNR, and the SNR is the SNR calculated by the first base station according to the initial transmit power of the UE and the propagation path loss parameter, The interference noise parameter is the INR calculated by the first base station according to the interference information, the initial transmission power is the transmission power determined by the first base station according to the first uplink data, and the interference information is the UE in the adjacent cell obtained by the second base station Interference information, the second base station sends the interference information to the first base station, and the adjacent cell is provided with network access services by the second base station;
303、UE根据调整量调整发射功率。303. The UE adjusts transmit power according to the adjustment amount.
UE在接收到调整量后，UE根据调整量调整发射功率。After the UE receives the adjustment amount, the UE adjusts the transmission power according to the adjustment amount.
需要说明的是，在本发明的一些实施例中，UE可以按照如下公式调整发射功率：It should be noted that, in some embodiments of the present invention, the UE can adjust the transmission power according to the following formula:
PUE,1＝min{PMax，10lgM+P0+αPPL+F}；其中PMax为最大发射功率，M为无线承载的个数，P0为参考接收功率，α为部分路损补偿因子，F为调整量。PUE,1 = min{PMax , 10lgM+P0 +αPPL +F}; where PMax is the maximum transmit power, M is the number of radio bearers, P0 is the reference receive power, and α is partial path loss compensation Factor, F is the adjustment amount.
本实施例中，UE向第一基站发送上行数据，使得第一基站能够根据上行数据获取初始发射功率，并根据其他的参数计算调整量，将得到的调整量发送给UE，UE通过调整量调整发射功率，从而UE获取合适的发射功率。In this embodiment, the UE sends uplink data to the first base station, so that the first base station can obtain the initial transmission power according to the uplink data, and calculate the adjustment amount according to other parameters, and send the obtained adjustment amount to the UE, and the UE adjusts the transmit power, so that the UE obtains an appropriate transmit power.
上面介绍了本发明实施例发射功率控制方法，下面介绍本发明实施例中的第一基站，请参阅图6，本发明实施例中第一基站的一个实施例包括：The transmission power control method of the embodiment of the present invention is described above, and the first base station in the embodiment of the present invention is introduced below. Please refer to FIG. 6. An embodiment of the first base station in the embodiment of the present invention includes:
接收单元401，用于接收用户设备UE在服务小区发送的上行数据，该服务小区由第一基站提供网络接入服务；The receiving unit 401 is configured to receive uplink data sent by the user equipment UE in a serving cell, the serving cell is provided with a network access service by the first base station;
确定单元402，用于根据上行数据确定UE的初始发射功率；A determining unit 402, configured to determine the initial transmit power of the UE according to the uplink data;
获取单元403，用于获取UE到服务小区的第一传播路损参数，并从第二基站获取UE在相邻小区的干扰信息，该相邻小区由第二基站提供网络接入服务；The obtaining unit 403 is configured to obtain a first propagation path loss parameter from the UE to the serving cell, and obtain interference information of the UE in a neighboring cell from a second base station, and the neighboring cell is provided with a network access service by the second base station;
第一计算单元404，用于根据UE的初始发射功率以及第一传播路损参数计算UE在服务小区的信号噪声参数SNR，并根据干扰信息计算干扰噪声参数INR；The first calculation unit 404 is configured to calculate the signal noise parameter SNR of the UE in the serving cell according to the initial transmission power of the UE and the first propagation path loss parameter, and calculate the interference noise parameter INR according to the interference information;
第二计算单元405，用于根据信号噪声参数SNR以及干扰噪声参数INR计算调整量；The second calculation unit 405 is configured to calculate the adjustment amount according to the signal noise parameter SNR and the interference noise parameter INR;
发送单元406，用于向UE发送调整量，以使得UE根据调整量调整发射功率。The sending unit 406 is configured to send the adjustment amount to the UE, so that the UE adjusts the transmission power according to the adjustment amount.
本实施例中，本发明通过第一基站获取UE在服务小区的第一传播路损参数来考虑UE到第一基站的传输损耗，另外，通过第一基站从第二基站获取UE在相邻小区的干扰信息来考虑UE对第二基站的干扰，第一基站在综合考虑UE到第一基站的传输损耗以及UE对第二基站的干扰后，第一基站计算出调整量，然后向UE发送调整量，使得UE根据调整量调整发射功率，由此，本发明能够通过功率控制同时提升服务小区的平均吞吐率和边缘吞吐率。In this embodiment, the present invention considers the transmission loss from the UE to the first base station by obtaining the first propagation path loss parameter of the UE in the serving cell through the first base station. The interference information of the UE to the second base station is considered. After the first base station considers the transmission loss from the UE to the first base station and the interference from the UE to the second base station, the first base station calculates the adjustment amount, and then sends the adjustment to the UE amount, so that the UE adjusts the transmission power according to the adjustment amount, thus, the present invention can simultaneously improve the average throughput rate and the edge throughput rate of the serving cell through power control.
可选的，在本发明的一些实施例中，第一计算单元404，具体用于通过如下方式计算信号噪声参数SNR：Optionally, in some embodiments of the present invention, the first calculation unit 404 is specifically configured to calculate the signal-to-noise parameter SNR in the following manner:
SNR＝PUE–PPL–BRB–N0；SNR = PUE -PPL -BRB -N0 ;
其中PUE为初始发射功率，PPL为第一传播路损参数，BRB为每个无线承载的带宽，N0为底噪功率。Where PUE is the initial transmission power, PPL is the first propagation path loss parameter, BRB is the bandwidth of each radio bearer, and N0 is the noise floor power.
可选的，在本发明的一些实施例中，第一计算单元404，具体用于通过如下方式计算干扰噪声参数INR：Optionally, in some embodiments of the present invention, the first calculation unit 404 is specifically configured to calculate the interference noise parameter INR in the following manner:
INR＝10lg(sum:k∈Γ(inrk))；INR＝10lg(sum:k∈Γ (inrk ));
其中Γ表示各相邻小区的集合，inrk为干扰信息，inrk为UE到相邻小区k的干扰强度的线性值；Wherein Γ represents the set of each adjacent cell, inrk is the interference information, and inrk is the linear value of the interference intensity from the UE to the adjacent cell k;
inrk通过如下方式计算得到：inrk is calculated as follows:
INRk＝10lg(inrk)；INRk = 10lg(inrk );
INRk通过如下方式计算得到：INRk is calculated as follows:
INRk＝PUE–PPL,k–BRB–N0；INRk =PUE -PPL,k -BRB -N0 ;
其中PPL,k为UE到相邻小区k的第二传播路损参数。Wherein PPL,k is the second propagation path loss parameter from the UE to the neighboring cell k.
可选的，在本发明的一些实施例中，第二计算单元405，具体用于根据信号噪声参数SNR计算第一参数FS(SNR)，并根据干扰噪声参数INR计算第二参数FI(INR)；根据第一参数FS(SNR)以及第二参数FI(INR)计算调整量。Optionally, in some embodiments of the present invention, the second calculation unit 405 is specifically configured to calculate the first parameter FS (SNR) according to the signal noise parameter SNR, and calculate the second parameter FI (SNR) according to the interference noise parameter INR INR); calculate the adjustment amount according to the first parameter FS (SNR) and the second parameter FI (INR).
进一步可选的，在本发明的一些实施例中，第二计算单元405，还具体用于若SNR小于下保护门限值SNRlow，则第一参数FS(SNR)为无穷大；若SNR大于上保护门限SNRsat，则第一参数FS(SNR)为0；若SNR小于上保护门限SNRsat，且大于或等于下保护门限SNRlow，则第一参数FS(SNR)为(SNRsat-SNR)的平方。Further optionally, in some embodiments of the present invention, the second calculation unit 405 is also specifically configured to: if the SNR is less than the lower protection threshold SNRlow , then the first parameter FS (SNR) is infinite; if the SNR is greater than The upper protection threshold SNRsat , then the first parameter FS (SNR) is 0; if the SNR is less than the upper protection threshold SNRsat , and greater than or equal to the lower protection threshold SNRlow , then the first parameter FS (SNR) is (SNRsat -SNR) squared.
可选的，在本发明的一些实施例中，第二计算单元405，还具体用于若INR小于或等于门限值INRth，则第二参数FI(INR)为0；若INR大于门限值INRth，则第二参数FI(INR)为(INR-INRth)的平方。Optionally, in some embodiments of the present invention, the second calculation unit 405 is also specifically configured to: if the INR is less than or equal to the threshold value INRth , then the second parameter FI (INR) is 0; if the INR is greater than the threshold value INR th The limit value INRth , then the second parameter FI (INR) is the square of (INR-INRth ).
可选的，在本发明的一些实施例中，第二计算单元405，具体用于通过如下公式计算目标发射功率PUE,2：Optionally, in some embodiments of the present invention, the second calculation unit 405 is specifically configured to calculate the target transmit power PUE,2 through the following formula:
min F(PUE,2)＝FS(SNR)+ζFI(INR)；其中ζ为预置的折中系数；将PUE,2与PUE之间的差值作为调整量。min F(PUE,2 )=FS (SNR)+ζFI (INR); where ζ is a preset compromise coefficient; the difference between PUE,2 and PUE is used as the adjustment amount.
下面介绍本发明实施例中的第二基站，请参阅图7，本发明实施例中第二基站的一个实施例包括：The second base station in the embodiment of the present invention is introduced below. Please refer to FIG. 7. An embodiment of the second base station in the embodiment of the present invention includes:
获取单元501，用于获取用户设备UE在相邻小区的干扰信息，该相邻小区由第二基站提供网络接入服务；The obtaining unit 501 is configured to obtain interference information of the user equipment UE in a neighboring cell, and the neighboring cell is provided with a network access service by a second base station;
发送单元502，用于将干扰信息发送给第一基站，该UE所在的服务小区由第一基站提供网络接入服务。The sending unit 502 is configured to send the interference information to the first base station, and the serving cell where the UE is located is provided with network access service by the first base station.
可选的，在本发明的一些实施例中，Optionally, in some embodiments of the present invention,
获取单元501，还用于获取UE到相邻小区的传播路损参数；The acquiring unit 501 is further configured to acquire a propagation path loss parameter from the UE to a neighboring cell;
发送单元502，还用于将传播路损参数发送给第一基站。The sending unit 502 is further configured to send the propagation path loss parameter to the first base station.
本实施例中，第二基站获取干扰信息，将该干扰信息发送给第一基站，便于第一基站根据干扰信息以及自身获得的其他参数计算调整量，使得UE根据调整量调整发射功率。In this embodiment, the second base station obtains the interference information, and sends the interference information to the first base station, so that the first base station can calculate the adjustment amount according to the interference information and other parameters obtained by itself, so that the UE adjusts the transmission power according to the adjustment amount.
下面介绍本发明实施例中的用户设备UE，请参阅图8，本发明实施例中用户设备UE的一个实施例包括：The following describes the user equipment UE in the embodiment of the present invention, please refer to FIG. 8, an embodiment of the user equipment UE in the embodiment of the present invention includes:
发送单元601，用于在服务小区向第一基站发送上行数据，该服务小区由第一基站提供网络接入服务；A sending unit 601, configured to send uplink data to a first base station in a serving cell where network access services are provided by the first base station;
接收单元602，用于接收第一基站发送的调整量，该调整量为第一基站根据信号噪声参数SNR以及干扰噪声参数SNR计算得到的调整量，该SNR为第一基站根据UE的初始发射功率以及传播路损参数计算得到的SNR，该干扰噪声参数为第一基站根据干扰信息计算得到的INR，该初始发射功率为第一基站根据第一上行数据确定得到的发射功率，该干扰信息为第二基站获取的UE在相邻小区的干扰信息，该第二基站将干扰信息发送给第一基站，该相邻小区由第二基站提供网络接入服务；The receiving unit 602 is configured to receive the adjustment amount sent by the first base station, the adjustment amount is the adjustment amount calculated by the first base station according to the signal noise parameter SNR and the interference noise parameter SNR, and the SNR is the initial transmission power of the UE according to the first base station And the SNR obtained by calculating the propagation path loss parameter, the interference noise parameter is the INR calculated by the first base station according to the interference information, the initial transmit power is the transmit power determined by the first base station according to the first uplink data, and the interference information is the first The second base station acquires the interference information of the UE in the adjacent cell, the second base station sends the interference information to the first base station, and the adjacent cell is provided with network access services by the second base station;
调整单元603，用于根据调整量调整发射功率。An adjustment unit 603, configured to adjust the transmission power according to the adjustment amount.
可选的，在本发明的一些实施例中，Optionally, in some embodiments of the present invention,
调整单元603，具体用于通过如下公式调整发射功率PUE,1：The adjustment unit 603 is specifically configured to adjust the transmission power PUE,1 by the following formula:
PUE,1＝min{PMax，10lgM+P0+αPPL+F}；PUE,1 =min{PMax ,10lgM+P0 +αPPL +F};
其中PMax为最大发射功率，M为无线承载的个数，P0为参考接收功率，α为部分路损补偿因子，F为调整量。Where PMax is the maximum transmit power, M is the number of radio bearers, P0 is the reference receive power, α is the partial path loss compensation factor, and F is the adjustment amount.
本发明实施例还提供一种服务器，请参阅图9，本发明实施例中服务器的一个实施例包括：The embodiment of the present invention also provides a server, please refer to FIG. 9, an embodiment of the server in the embodiment of the present invention includes:
图9是本发明实施例提供的一种服务器结构示意图，该服务器700可因配置或性能不同而产生比较大的差异，可以包括一个或一个以上中央处理器(central processing units，CPU)701(例如，一个或一个以上处理器)，一个或一个以上存储应用程序702或数据703的存储介质704(例如一个或一个以上海量存储设备)。其中，存储介质704可以是短暂存储或持久存储。存储在存储介质704的程序可以包括一个或一个以上模块(图示没标出)，每个模块可以包括对交换机中的一系列指令操作。更进一步地，中央处理器701可以设置为与存储介质704通信，在服务器700上执行存储介质704中的一系列指令操作。FIG. 9 is a schematic structural diagram of a server provided by an embodiment of the present invention. The server 700 may have relatively large differences due to different configurations or performances, and may include one or more central processing units (central processing units, CPU) 701 (such as , one or more processors), one or more storage media 704 for storing application programs 702 or data 703 (such as one or more mass storage devices). Wherein, the storage medium 704 may be short-term storage or persistent storage. The program stored in the storage medium 704 may include one or more modules (not shown in the figure), and each module may include a series of instruction operations on the switch. Furthermore, the central processing unit 701 may be configured to communicate with the storage medium 704 , and execute a series of instruction operations in the storage medium 704 on the server 700 .
服务器700还可以包括一个或一个以上电源705，一个或一个以上有线或无线网络接口706，一个或一个以上输输出接口707，和/或，一个或一个以上操作系统708，例如Windows ServerTM，Mac OS XTM，UnixTM,LinuxTM，FreeBSDTM等。The server 700 can also include one or more power supplies 705, one or more wired or wireless network interfaces 706, one or more input and output interfaces 707, and/or, one or more operating systems 708, such as Windows Server™, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, etc.
上述实施例中由第一基站、第二基站以及UE所执行的步骤可以基于该图9所示的服务器结构。The steps performed by the first base station, the second base station, and the UE in the foregoing embodiments may be based on the server structure shown in FIG. 9 .
以上所述，以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still understand the foregoing The technical solutions recorded in each embodiment are modified, or some of the technical features are replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510920282.1ACN106879058B (en) | 2015-12-11 | 2015-12-11 | Transmission power control method, base station and User Equipment (UE) |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510920282.1ACN106879058B (en) | 2015-12-11 | 2015-12-11 | Transmission power control method, base station and User Equipment (UE) |
| Publication Number | Publication Date |
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| CN106879058Atrue CN106879058A (en) | 2017-06-20 |
| CN106879058B CN106879058B (en) | 2020-08-04 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510920282.1AActiveCN106879058B (en) | 2015-12-11 | 2015-12-11 | Transmission power control method, base station and User Equipment (UE) |
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| CN (1) | CN106879058B (en) |
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