Method for configuring node B high-speed sharing information channel power control parameter

Abstract

The invention disclose a configuring method of node B sharing information channel power control parameters, when the higher grade of network configures the parameters of 'TPC step size'for the user's device, and it also sends the parameters to the node B via the higher commands of NBAP protocol, and configures the parameters for the node B; the node B generates the sending power control commands TPC which used in the high sharing information channel by 'TPC step size','Ack-Nack power offset','HS-SICH SIR Target',the measured sharing channel real power value PHS-SICH, and the ACK / NACK information carried by the sharing channel, and it adjusts the TPC parameters by the calculated forecasting value, and determines the TPC parameters accurately, and it can realize the close loop power control for the HS-SICH greatly.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method for configuring power control parameters of a node B high-speed shared information channel in a time-division synchronous code division multiple access TD-SCDMA system, including configuring a high-speed shared information channel for a node B by a wireless network controller The power control step size parameter and the method by which the Node B uses this parameter to generate transmit power control commands for the high speed shared information channel. Background technique [0002] HSDPA (High Speed ​​Downlink Packet Access) 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 co...

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Problems solved by technology

[0013] However, due to the different characteristics of the high-speed shared channel and the dedicated physical channel, the method for Node B to generate the TPC command for the closed-loop power control of the HS-SICH channel and the method for the TPC command for the closed-loop power control of the dedicated channel are different. In the current protocol, there is no description of how Node B generates TPC commands for HS-SICH closed-loop power control

[0014] Moreover, when Node B calculates the TPC command used for HS-SICH closed-loop power control, it generally needs to use the uplink step size (HS-SICH TPC step size) to predict the received power, and in the current protocol, the network side The high-level signaling sent to Node B by high-level (RRC layer of RNC, radio resource control layer of radio network controller) does not configure the information element of uplink TPC step size for HS-SICH, so it is impossible to predict this HS-SICH SICH power value

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