Power control method and equipment

Abstract

The invention discloses a power control method and equipment. The method comprises the following steps: when a receiver receives data, determining a transmission power control (TPC) parameter according to the signal-to-noise ratio; when the receiver does not receive the data, if an unsent effective power control command exists, determining the TPC parameter according to the TPC in the power control command, and if the unsent effective power control command does not exist, determining the TPC parameter according to the predetermined mode; and sending the determined TPC parameter to a sender. The invention can be used for improving the power control effect of a channel and improving the system performance.

Description

technical field [0001] The present invention relates to communication technology, in particular to a power control method and equipment. Background technique [0002] In a Code Division Multiple Access (CDMA, Code Division Multipul Access) communication system, all users use the same frequency band to send information at the same time, so the impact of multiple access interference is relatively large, and reducing multiple access interference becomes the key to increasing system capacity. Research and practice have shown that power control can effectively eliminate the near-far effect and reduce interference, increase system capacity and provide better service quality. Therefore, the effect of power control directly affects the performance of the system. [0003] In the prior art, taking a dedicated physical channel (DPCH, Dedicated Physical Channel) as an example, the power control adopts an open-loop+closed-loop mode. The power control of the uplink and downlink DPCHs wil...

AI Technical Summary

Problems solved by technology

[0011] In the above power control process, when there is no data to send, there is no clear description of how the sender ignores the TPC and how the receiver responds to the TPC, which makes the implementation process inconsistent due to unclear description of the protocol by various manufacturers; in addition, for the base station How to set the initial power of downlink transmission after resuming data transmission, the existing protocol has no clear solution

However, in the actual system, due to the unstable data during the business data transmission process, some frames will have no data to send, which will affect the power control and affect the system performance.

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