Outer ring power control method and deivce of high-speed shared control channels and user equipment

Abstract

The invention provides an outer ring power control method and deivce of high-speed shared control channels and user equipment. The outer ring power control method includes that the high-speed shared control channels (HS-SCCHs) are received and decoded; when decoding of the currently received HS-SCCHs passes, whether the currently received HS-SCCHs are HS-SCCHs with passed continuous decoding is judged on the basis of system frame numbers (SFNs) and cycle sequence numbers (HCSNs) of the HS-SCCHs with the passed latest two adjacent decoding to obtain a first judgment result; when the first judgment result indicates that the currently received HS-SCCHs are the HS-SCCHs with passed continuous decoding, the first amount of the HS-SCCHs with passed continuous decoding is counted; and whether the first quantity is larger than a preset first threshold value is judged, and the target value used for HS-SCCH inner ring power control is decreased when the first quantity is larger than the first threshold value. The outer ring power control method and deivce can improve outer ring power control accuracy.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a high-speed shared control channel outer loop power control method, device and user equipment. Background technique [0002] For the time division duplex (Time Division Duplex, TDD) system in the third generation mobile communication, such as time division synchronous code division multiple access (TD-SCDMA, Time Division-Synchronous Code Division Multiple Access) system, support high-speed downlink packet access ( HSDPA, High Speed ​​Downlink Packages Access) service is an important feature of version 5 of the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project). [0003] In the HSDPA system, the High-Speed ​​Downlink Shared Channel (HS-DSCH, High-Speed ​​Downlink Shared Channel) channel mainly carries high-speed data services; the High-Speed ​​Shared Information Control Channel (HS-SICH, High-Speed ​​Shared Information Channel,) ...

AI Technical Summary

Problems solved by technology

Therefore, the outer loop power control cannot be performed by the number of HS-SCCH decoding errors (or block error rate)

[0007] In addition, if the UE cannot correctly decode the HS-SCCH for a continuous period of time, if the power value is not adjusted in time, the UE may not receive correct HS-SCCH information.

If the traditional outer loop power control method is used, if the HS-SCCH is decoded incorrectly, it will be treated as if the user has not received the correct HS-SCCH, then according to the service BLER requirements, the target Signal Interference Ratio (SIR, Signal Interference Ratio) value may be It will soon increase to the maximum value, causing the base station to send HS-SCCH at the maximum power all the time, which may cause HS-SCCH power adjustment errors

In addition, if the HS-SCCH power value is too large, it will also cause great interference to other channels in the time slot where the HS-SCCH is located, causing the overall system performance to decline, which requires a new power control suitable for the HS-SCCH channel method

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