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Method for controlling channel power

A control method and a technology for controlling channel power, which are applied in the field of wireless communication control and can solve problems such as large channel power consumption

Active Publication Date: 2007-06-20
XFUSION DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method is simple to implement, its problem is that the total channel power consumption will be much greater than the actual needs

Method used

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  • Method for controlling channel power

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Embodiment Construction

[0036] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0037] In order to complete the fast power control of the user's uplink channel, the base station connected to the user will periodically transmit a TPC in the downlink, and the transmission power of the TPC is determined by the power and power offset of the dedicated physical data channel (DPDCH). Since the downlink TPC transmitted by each base station is different, the user cannot use the maximum ratio combining method to receive it. In the WCDMA system, the power offset of TPC is controlled by the radio network controller (RNC). RNC can adjust the power offset of TPC in real time according to the user's wireless connection status to compensate for the power demand between TPC and DPDCH caused by the change of soft handover state. difference in Similar to the c...

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Abstract

The invention is concerned with the controlling method that the two high-speed up link grouping accesses the down controlling channel power. One method is : confirms the channel emission power by the TPC emission power and the channel correspond fixing power off-set; another method is: processes adjustment for HICH emission power according to the condition of ACK on the HICH channel, and confirms the RGCH emission power according to the fixing power off-set of the HICH that corresponds with the RGCH. The invention can control the emission power of the HSUPA down controlling channel RGCH and HICH effectively, makes the emission power minimum.

Description

technical field [0001] The invention relates to a wireless communication control method, in particular to a method for controlling power of a high-speed uplink packet access (HSUPA) downlink control channel. Background technique [0002] HSUPA is an uplink high-speed data service enhancement technology in wideband code division multiple access (WCDMA) systems. It uses fast retransmission, hybrid automatic repeat request (ARQ) and distributed control methods based on base stations to complete high-speed uplink data transmission functions . [0003] The system allocates two control channels for each user in the downlink: Hybrid ARQ Indicator Channel (HICH) and Relative Grant Channel (RGCH), which are used to transmit data packet confirmation information and control authorization information for users respectively. Among them, the HICH carries the acknowledgment information for the uplink Enhanced Dedicated Channel (E-DCH) data, including confirmation (ACK), denial (NACK) and ...

Claims

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Application Information

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IPC IPC(8): H04B7/005H04B7/216H04Q7/20
CPCY02D30/70
Inventor 张劲林
Owner XFUSION DIGITAL TECH CO LTD
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