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Method and system for power control in semi-persistent scheduling mode

A semi-persistent scheduling and power control technology, applied in the field of communication, can solve problems such as inaccurate uplink power adjustment

Active Publication Date: 2015-08-12
JIANGSU PENGAO VALVE IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In view of this, the main purpose of the present invention is to provide a method and system for power control in semi-persistent scheduling mode to solve the inaccurate uplink power adjustment caused by using the same power control step size for different SPS resources in SPS mode The problem

Method used

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  • Method and system for power control in semi-persistent scheduling mode
  • Method and system for power control in semi-persistent scheduling mode
  • Method and system for power control in semi-persistent scheduling mode

Examples

Experimental program
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Embodiment 1

[0071] Example one, such as figure 2 Shown is the power control process for uplink SPS resources, including the following steps:

[0072] In step 201, the RNC configures the TX Pattern list containing the power control step size to the base station through the NBAP message.

[0073] The cell format contained in the TX Pattern list is shown in Table 1, which will not be repeated here. The NBAP message may be: wireless link establishment, or wireless link reconfiguration, or wireless link addition, or wireless link modification messages.

[0074] In step 202, the base station selects a Tx Pattern (initial Tx Pattern for short) for initial transmission from the Tx Pattern list, and returns the index of the initial Tx Pattern to the RNC through an NBAP response message.

[0075] The base station saves the Tx Pattern list after receiving it, selects a Tx Pattern for initial transmission from the Tx Pattern list, and returns an NBAP response message to the RNC, which contains the index of ...

Embodiment 2

[0095] Embodiment two image 3 Shown is the power control process for downlink SPS resources, including the following steps:

[0096] In step 301, the RNC configures the RX Pattern list containing the power control step size to the base station through the NBAP message.

[0097] The cell format contained in the RX Pattern list is shown in Table 1, which will not be repeated here. The NBAP message may be: wireless link establishment, or wireless link reconfiguration, or wireless link addition, or wireless link modification messages.

[0098] In step 302, the base station selects an Rx Pattern (initial Rx Pattern for short) for initial transmission from the Rx Pattern list, and returns the index of the initial Rx Pattern to the RNC through an NBAP response message.

[0099] After receiving the Rx Pattern list, the base station saves it, selects an Rx Pattern for initial transmission from the Rx Pattern list, and returns an NBAP response message to the RNC, which contains the index of th...

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Abstract

A method and system for power control in a Semi-Persistent Scheduling (SPS) mode are disclosed in the present invention, and the method includes: a Radio Network Controller (RNC) configures a power control step size corresponding to SPS resources; the RNC configures the SPS resources and the corresponding power control step size to a base station and a terminal by an SPS resources pattern list; the SPS resources pattern list includes the SPS resources and the corresponding power control step size; the terminal determines the currently used SPS resources and the corresponding power control step size, and implements adjustment of transmission power for an uplink channel. The present invention solves a problem of the inaccurate adjustment of uplink power resulted from using, by a UE, the same power control step size for different SPS resources (especially different repetition periods).

Description

Technical field [0001] The present invention relates to the field of communication, in particular to a method and system for power control in a semi-persistent scheduling (SPS) mode. Background technique [0002] Semi-Persistent Scheduling (Semi-Persistent Scheduling) is an important feature of High Speed ​​Downlink Packet Access (HSPA+, High Speed ​​Downlink Packet Access). It is mainly suitable for IP real-time services, such as VoIP (Voice over Internet Protocol), Real-time interactive services such as Hyper Text Transfer Protocol (HTTP). VoIP services have the characteristics of predictable data packet size, fixed cycle, small interval, and high delay requirements. If you continue to use the original method to schedule VoIP services, the calculation is scheduled every 20ms, and the high-speed shared control channel (HS-SCCH, High -Speed ​​Shared Control Channel) The overhead should account for 25% of the total overhead (referring to the overhead occupied by the control chann...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/14H04W52/36
CPCH04W52/146H04W52/362
Inventor 黄春黄河
Owner JIANGSU PENGAO VALVE IND CO LTD