Method of distributing uplink power, equipment and system thereof

Abstract

An embodiment of the invention provides a method of distributing uplink power, equipment and a system thereof. The method comprises the following steps of according to a position of a user in a cell, determining a user who needs to be paired; determining a PDMA pattern matrix, distributing different PDMA pattern vector groups for each user, and according to the PDMA pattern vector groups, forming a power control pattern matrix; and according to the power control pattern matrix, determining a power control factor of each user in each pair, and according to the power control factor, determining uplink emission power of each user. During a combined usage process of PDMA and an uplink power control technology of LTE, a technology of determining the uplink emission power of the terminal is provided, terminal power consumption is reduced, an uplink cell average and edge user frequency spectrum efficiency are increased, and cell access user numbers are increased too.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a method, device and system for allocating uplink power. Background technique [0002] Similar to traditional time division multiple access (TDMA, Time Division Multiple Access), frequency division multiple access (FDMA, Frequency Division Multiple Access), code division multiple access (CDMA, Code Division Multiple Access) access technologies, pattern division multiple access (PDMA, Patten Division Multiple Access) technology, as a key technology of 5G, supports multiple users to transmit on the same time domain, frequency domain, and air domain resources, and distinguishes between users through the coding domain and power to improve the average cell and edge user Spectrum efficiency, and increase the number of cell access users. [0003] The uplink of the Long Term Evolution (LTE, Long Term Evolution) system uses power control technology. In order to ensure good for...

AI Technical Summary

Problems solved by technology

[0005] In the 5G system, when PDMA technology is used in conjunction with uplink power control technology, since multiple users transmit on the same time-frequency resource, users are distinguished by differences in coding and power, which may lead to system (IoT, Interference Over Thermal) The increase will affect the power consumption of terminals, the number of access users in the cell, the average spectral efficiency of the cell and edge users

[0006] The existing technology has the following problems: the uplink power of the traditional LTE system controls the transmission power of each terminal on each PRB (Physical Resource Block). If the PDMA technology is used in conjunction with the uplink power control technology, the traditional uplink The power control method will not only increase the complexity of uplink detection, but also may cause the terminal’s uplink transmission power to be too large or even exceed the terminal’s maximum uplink transmission power, which will cause a large increase in the uplink IoT, resulting in a decrease in the number of access users. Reduced user spectral efficiency

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