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Power control method and system

A technology of power control and power, which is applied in the field of communication, can solve the problems of increased overhead and increased overhead, and achieve the effect of reducing system overhead and flexible power control

Inactive Publication Date: 2011-07-06
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sometimes, if the resource changes and the RDCH Gain still needs to be kept unchanged, it needs to be re-assigned, which increases the overhead
In other words, if you want to separate power control and resource allocation, it will inevitably lead to multiple assignments and increase overhead

Method used

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  • Power control method and system
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  • Power control method and system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0040] First refer to figure 1 ,in, figure 1 is a flowchart showing the power control method according to the first embodiment of the present invention.

[0041] Field / domain

Length (bits) / length (bytes)

illustrate

MessageID

8

message ID

RDCH Gain

8

RDCHGain assigned by AN to AT, valid range RDCHGain Min-RDCHGainMax, take 0xff as the reserved value, that is, instruct AT to retain the last RDCHGain

RDCHGainHoldDuration

6

AN expects AT to enter the RDCHGain holding state. The duration is the period when AT updates RDCHGain.

Reserved

2

Reserved field, ensure that the message length satisfies an integer of 8

[0042] Next, in step S104, the access terminal judges whether the value of the RDCH Gain HoldDuration field is 0. If the value of the above-mentioned field is 0, the AT will ignore the received in-band signaling message, and in the above-mentioned field When the value is not 0, it...

no. 2 example

[0046] A second embodiment of the present invention will be described below with reference to the drawings. refer to figure 2 ,in, figure 2 is a flowchart showing a power control method according to the second embodiment of the present invention.

[0047] Similar to the first embodiment, in step S202, the network side (AN) sends an in-band signaling message to the access terminal (AT), instructing the AT to enter the RDCH Gain (traffic channel gain) holding state, wherein the in-band signaling The message carries a traffic channel gain hold period (RDCH Gain Hold Duration) field, which is used to indicate the duration for which the AT keeps the RDCHGain unchanged.

[0048] Next, in step S204, the access terminal judges whether the value of the RDCH Gain HoldDuration field is 0. If the value of the above-mentioned field is 0, the AT will ignore the received in-band signaling message, and the value of the above-mentioned field When the value is not 0, it will enter the RDCH...

no. 3 example

[0051] In the power control method according to the third embodiment of the present invention, the difference from the first embodiment and the second embodiment is that in the first step, the AN sends an assignment message to the AT through an overhead channel, such as NS-RLAB , which is used to instruct the AT to enter the RDCH Gain Hold state, and the message also carries the RDCH Gain Hold Duration field. A modified NS-RLAB message is as follows:

[0052] Field / domain

[0053] Besides, the third embodiment according to the present invention is the same as the first embodiment and the second embodiment, and to unnecessarily obscure the present invention, repeated descriptions of the same parts will be omitted here.

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PUM

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Abstract

A method for controlling power includes sending the first message being used to indicate access terminal to enter service channel gain holding state and being carried with field of service channel gain holding period to access terminal by network side, responding said first message by said access terminal in order to confirm whether service channel gain holding state is entered or not, ignoring said first message if said field is on specific value and entering access terminal into service channel gain holding state when said field is on nonspecific value. The system used for realizing said method is also disclosed.

Description

technical field [0001] The present invention relates to the communication field, and more particularly, relates to a power control method and a power control system, which can be applied to such as OFDMA (access scheme based on Orthogonal Frequency Division Multiplexing Technology) for power control based on outer sector interference ) wireless access system. Background technique [0002] At present, 3G mobile communication technology is gradually mature and commercially available, and 3GPP2 CDMA20001XEV-DO can further provide a competitive wireless access system in the next few years. However, in order to maintain competitiveness in the next decade or decades, it is necessary to introduce new wireless access technologies. At present, the industry has reached a preliminary consensus on the evolution of 3GPP2 air interface technology, which is divided into two stages, that is, the first stage adopts multi-carrier EV-DO technology, and more consideration is given to compatibi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/005
CPCH04W52/04
Inventor 刘珏君
Owner HUAWEI TECH CO LTD
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