Method and device for controlling uplink transmitting power

Abstract

The invention discloses a method and device for controlling uplink transmitting power, applied to network system simulation. The method comprises the steps of: respectively determining the noise increment of each cell according to the current uplink transmitting power of each specific terminal in each cell, wherein cells include a cell in which a current scheduling terminal is arranged and adjacent cells of the cell; respectively determining the difference between the noise increment of each cell and a corresponding cell noise increment threshold; and determining the adjusted uplink transmitting power of the current scheduling terminal according to the current uplink transmitting power of the current scheduling terminal and the determined difference. Compared with the prior art, the method and the device disclosed in the invention can more reasonably simulate the condition of a real network.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to an uplink transmission power control method and device applied in system simulation. Background technique [0002] In the third-generation mobile communication system, in order to provide higher-speed uplink services and improve spectrum efficiency, 3GPP introduced an enhanced uplink technology, namely high-speed uplink packet access HSUPA (high speed uplink packet access) technology . As a wireless technology based on code division multiple access, power control in HSUPA system is still a key issue. At present, the performance of the wireless network system can be checked through wireless network system simulation, as well as the planning and optimization of the wireless network system. In network planning, various performance parameters related to network coverage and capacity are analyzed through simulation to test the rationality of the planning schem...

AI Technical Summary

Problems solved by technology

If the power control method of method 1 is still used for simulation, the target load-to-interference ratio needs to be continuously adjusted, and the entire system is in constant adjustment and change. Based on the convergence requirements in the simulation, such control will be difficult to achieve convergence.

And in method 1, in order to achieve the desired rate, the terminal at the edge of the cell may increase the transmission power to offset the path loss caused by the long distance, then the terminal at the edge of the cell will cause damage to the terminal in the adjacent cell. Larger interference, such a vicious circle, will make the whole system in a situation of larger interference, which is poorly matched with the real network situation

The method in Method 2 can quickly meet the convergence requirements in the simulation, and the simulation time is short, but the throughput of the system cannot be guaranteed to be maximized, and the uplink interference to adjacent cells cannot be controlled. The problem of poor matching of the situation

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