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Method for realizing power control of high speed sharing information channel

A technology of sharing information channel and power control, applied in the field of mobile communication, can solve the problem of no description and so on

Inactive Publication Date: 2007-12-05
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0013] However, it does not explain how the UE calculates the open-loop transmit power and closed-loop transmit power of the HS-SICH using the relevant parameters configured by the high layer, especially how the UE adds a power offset according to the ACK information carried on the HS-SICH. And the impact of the power offset on the open-loop power control and closed-loop power control process of UE's HS-SICH

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  • Method for realizing power control of high speed sharing information channel
  • Method for realizing power control of high speed sharing information channel

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Embodiment Construction

[0044] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0045] In the TD-SCDMA system, the high-speed shared information channel HS-SICH transmitted by UE (user equipment) to Node B (Node B) and the corresponding high-speed shared control channel HS-SCCH transmitted by Node B to UE need power control . In low-chip rate time-division duplex mode (LCRTDD), the power control of HS-SICH includes open-loop power control and closed-loop power control.

[0046] The UE receives and stores the power parameters configured by the upper layers of the network side in advance, including: PRX HS-SICH (HS-SICH expected value), TPC Step Size (transmission power control step size), Ack-Nack PowerOffset (transmission power offset), etc., and according to the received TPC (transmission power control) parameters carried on the HS-SCCH , to calculate the transmit power of the open-loop control and closed-loop...

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Abstract

The invention publishes a method for power control of high speed sharing information channel. Obtain a split-ring emissive power by the network side high-level disposition's power parameter 'PRXHS-SICH' and subscriber's equipment's survey compensation value LPCCPCH. Then obtain the actual split-ring emissive power by on subscriber's equipment's physical level basis high speed sharing information channel after adjusting ACK / NACK information and disposition's power parameter 'Ack-Nack power offset'. Similarly, Then obtain the actual closed -ring emissive power by on subscriber's equipment's physical level basis high speed sharing information channel after adjusting ACK / NACK information and disposition's power parameter 'Ack-Nack power offset'. Also obtain the actual closed loop emissive power. This invention realizes the power control about the HS-SICH split-ring emissive power and the closed loop emissive power for the related parameter of the subscriber's equipment.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a method for realizing power control of a high-speed shared information channel in a Time Division Synchronous Code Division Multiple Access TD-SCDMA system. Background technique [0002] High-Speed ​​Downlink Packet Access (HSDPA) technology is a technology for providing high-speed downlink data services for multiple users. It is suitable for businesses that download a large amount of information such as multimedia and Internet. HSDPA introduces a new transmission channel HS-DSCH (High Speed ​​Downlink Shared Channel), in which users share downlink code resources and power resources for time division multiplexing. This structure is suitable for bursty packet data services. The downlink physical channel HS-SCCH (High Speed ​​Shared Control Channel) is used to bear the physical layer control signaling used for decoding on the HS-PDSCH (High Speed ​​Physical Downlink...

Claims

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Application Information

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IPC IPC(8): H04B7/005
Inventor 马子江马志锋宋熛
Owner ZTE CORP