Base station transmitting power selection method based on average power loss

Abstract

The invention discloses a base station transmitting power selection method based on average power loss, and the method comprises the following steps: S1, constructing a working scene of a base station, the working scene comprises a plurality of base stations and a plurality of target receiving devices, and each base station has a plurality of to-be-selected transmitting powers; s2, respectively measuring the power loss between each base station and each target receiving device, calculating the average power loss, and then selecting a plurality of alternative target base stations based on the average power loss; and S3, giving the requirement for the lowest received signal power at each target receiving device, and selecting the optimal base station and the transmitting power thereof from the plurality of alternative target base stations based on the power loss. According to the invention, the alternative target base stations are selected based on the average power loss, the base station can be selected from the alternative target base stations for signal transmission according to the power requirement of the target receiving equipment, and the optimal power can be used under the condition that the requirement is met.

Description

Technical Field

[0001] The invention relates to the field of base station communications, and in particular to a method for selecting base station transmission power based on average power loss. Background Art

[0002] In communication scenarios, sending signals to receiving devices in the target area often requires the use of base stations. In an engineering environment, multiple base stations may be deployed, and the locations of each base station and the obstacles encountered are different, so it is necessary to select the base station and its power. However, the general selection method is based on distance. Although this method is direct and effective, it does not consider the impact of the scene environment and obstacles. When ensuring that all receiving devices can receive signals, it often brings greater power loss. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a base station transmission power selection method based on average power loss. First, an alternative target base station is selected based on the average power loss, and a base station can be selected from the alternative target base stations for signal transmission according to the power requirements of the target receiving device, and the optimal power can be used while meeting the requirements.

[0004] The object of the present invention is achieved through the following technical solution: A method for selecting base station transmission power based on average power loss, comprising the following steps: S1. Construct a base station working scenario, including multiple base stations and multiple target receiving devices, each base station has multiple transmission powers to be selected; S2. respectively measure the power loss between each base station and each target receiving device, calculate the average power loss, and then select multiple candidate target base stations based on the average power loss; S3. Given the minimum requirement for the received signal power at each target receiving device, based on the power loss, select the optimal base station and its transmission power from multiple candidate target base stations.

[0005] The beneficial effects of the present invention are as follows: by selecting alternative target base stations based on average power loss, the power loss of signal transmission can be effectively optimized, and a base station can be selected from the alternative target base stations for signal transmission according to the power requirements of the target receiving device, and it can be ensured that signal transmission can be performed with the optimal base station and the optimal transmission power while meeting the power requirements of all target receiving devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 The figure is a flow chart of the method of the present invention. DETAILED DESCRIPTION

[0007] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0008] like Figure 1 As shown, a method for selecting base station transmission power based on average power loss includes the following steps: S1. Construct a base station working scenario, including multiple base stations and multiple target receiving devices, each base station has multiple transmit powers to be selected; In the working scenario of the base station, it is necessary to select one base station from multiple base stations, and select a transmission power from the transmission powers to be selected by the base station to send a signal to a target receiving device.

[0009] S2. respectively measure the power loss between each base station and each target receiving device, calculate the average power loss, and then select multiple candidate target base stations based on the average power loss; The step S2 comprises: S201. For any base station, according to the maximum transmission power Transmit a test signal and then measure the received signal power at each target receiving device , where N represents the number of target receiving devices; Indicates the received signal power obtained by the test at the nth target receiving device, n=1,2,…,N; in general, the number of target receiving devices N is considered to be greater than 15; S202. Calculate the power loss from the base station to N target receiving devices, that is, when n=1, 2, ..., N, calculate the power loss from the base station to the nth target receiving device. ; S203. Calculate the average power loss from the base station to N target receiving devices : S204. For each base station, repeat steps S203~S204 to obtain the average power loss of each base station, and then select K base stations with the smallest average power loss as candidate target base stations, where K is a positive integer less than M / 4 and greater than 2, and M represents the number of base stations.

[0010] In this application, the base station with the smallest average power loss is not directly selected as the final base station, because the average power loss reflects the overall average loss from the base station to each target receiving device. There may be a situation where the overall average loss is small, but the individual loss between a target receiving device and a target receiving device is high. At this time, if you want to identify the signal, you can only increase the transmission power of the target receiver. This method has a certain power redundancy for the remaining target receiving devices; therefore, this application uses the average power loss as a benchmark and only selects K candidate target base stations; then, by combining the power requirements and power losses of each target receiving device, the optimal target base station and its optimal transmission power are selected from the K candidate target base stations to ensure that the signal is sent with the lowest power under the condition of low average power loss. Specifically: S3. Given the minimum requirement for the received signal power at each target receiving device, based on the power loss, select the optimal base station and its transmission power from multiple candidate target base stations.

[0011] The step S3 comprises: S301. The number of candidate target base stations is K, and each candidate target base station has t optional transmission powers. The optional transmission powers of the i-th target base station are recorded from small to large as follows: ,in, represents the jth optional transmission power of the i-th candidate target base station, i=1,2,…,K, j=1,2,…,t; S302. Assume that the minimum requirements for the received signal power at N target receiving devices are ; According to the minimum signal power requirement at the N target receiving devices, calculate the minimum transmission power required at the i-th candidate target base station to meet the requirements of the N target receiving devices, denoted as ; in, , indicating that the i-th candidate target base station must meet the minimum power requirement of the n-th target receiving device The minimum required transmit power, n=1,2,…,N; The power loss from the i-th candidate target base station to the n-th target receiving device; S303. From Select the maximum value among them and record it as ;from Select greater than The transmission power of , and take the minimum value, recorded as ; S304. When i=1,2,…,K, repeat steps S302~S303 to obtain the minimum value of the transmit power of each candidate target base station , and take the smallest transmission power as the optimal transmission power, and select the candidate target base station corresponding to the optimal transmission power as the optimal base station.

[0012] The above is a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A method for selecting base station transmission power based on average power loss, characterized in that: The following steps are involved: S1. Construct a base station working scenario, including multiple base stations and multiple target receiving devices, each base station has multiple transmit powers to be selected; S2. respectively measure the power loss between each base station and each target receiving device, calculate the average power loss, and then select multiple candidate target base stations based on the average power loss; S3. Given the minimum requirement for the received signal power at each target receiving device, based on the power loss, select the optimal base station and its transmission power from multiple candidate target base stations.

2. A method for selecting base station transmission power based on average power loss according to claim 1, characterized in that: In the working scenario of the base station, it is necessary to select one base station from multiple base stations, and select a transmission power from the transmission powers to be selected by the base station to send a signal to a target receiving device.

3. The method for selecting base station transmission power based on average power loss according to claim 1, characterized in that: The step S2 comprises: S201. For any base station, according to the maximum transmission power Transmit a test signal and then measure the received signal power at each target receiving device , where N represents the number of target receiving devices; Indicates the received signal power obtained by the test at the nth target receiving device, n=1,2,…,N; S202. Calculate the power loss from the base station to N target receiving devices, that is, when n=1, 2, ..., N, calculate the power loss from the base station to the nth target receiving device. ; S203. Calculate the average power loss from the base station to N target receiving devices : S204. For each base station, repeat steps S203 to S204 to obtain the average power loss of each base station, and then select K base stations with the smallest average power loss as candidate target base stations.

4. The method for selecting base station transmission power based on average power loss according to claim 1, characterized in that: The step S3 comprises: S301. The number of candidate target base stations is K, and each candidate target base station has t optional transmission powers. The optional transmission powers of the i-th target base station are recorded from small to large as follows: ,in, represents the jth optional transmission power of the i-th candidate target base station, i=1,2,…,K, j=1,2,…,t; S302. Assume that the minimum requirements for the received signal power at N target receiving devices are ; According to the minimum signal power requirement at the N target receiving devices, calculate the minimum transmission power required at the i-th candidate target base station to meet the requirements of the N target receiving devices, denoted as ; in, , indicating that the i-th candidate target base station must meet the minimum power requirement of the n-th target receiving device The minimum required transmit power, n=1,2,…,N; The power loss from the i-th candidate target base station to the n-th target receiving device; S303. From Select the maximum value among them and record it as ;from Select greater than The transmission power of , and take the minimum value, recorded as ; S304. When i=1,2,…,K, repeat steps S302~S303 to obtain the minimum value of the transmit power of each candidate target base station , and take the smallest transmission power as the optimal transmission power, and select the candidate target base station corresponding to the optimal transmission power as the optimal base station.

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