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Method and apparatus for power control

A power control and control module technology, applied in the direction of selection device, transmission control/equalization, radio/inductive link selection arrangement, etc., can solve the problem of poor power control effect, low channel resource utilization, and channel without power control and other issues, to achieve the effect of improving power control effect, flexible configuration, and saving channel resources

Inactive Publication Date: 2009-03-18
TD TECH COMM TECH LTD
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Problems solved by technology

[0015] Therefore, in the prior art, the power control method related to HSPA has the following problems: on the one hand, the utilization rate of channel resources (comprising the TPC command word contained in the channel) is too low; on the other hand, the power control of some channels The effect is not good, and some channels do not even have power control

Method used

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  • Method and apparatus for power control
  • Method and apparatus for power control

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Embodiment approach

[0063] 1. Configure E-AGCH and E-HICH (a UE may have multiple E-HICHs) in the same time slot, use E-AGCH as the reference physical channel, and use the power of E-AGCH as the reference power value P. Power P of the i-th E-HICH i The difference from the reference power value P is OFFSET i , namely P i =P+OFFSET i (i=1, 2, . . . ). OFFSET i Can be defined by the physical layer, or configured by higher layers. Because in the current protocol, power control can be performed on E-AGCH, but there is no power control on E-HICH. Therefore, the power control performance of the E-HICH can be improved by using the above method provided in this embodiment.

[0064] 2. In scenario 1, configure any two or more physical channels of downlink DPCH, E-AGCH, non-scheduled E-HICH and scheduled E-HICH in the same time slot, and use one of the physical channels As the reference physical channel, some combination of non-scheduled E-PUCH and scheduled E-PUCH is used to perform power control on...

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Abstract

The implement of the invention discloses a method for controlling power, which comprises: judging the type of a communication channel which needs power control and selecting a corresponding power control strategy to control and synchronize power for the communication channel which needs power control according to the judging result. The implement of the invention discloses a device for controlling the power, which comprises a judging module and a control module. In the method and the device which are provided by the implement of the invention, since existing communication channel resources are fully utilized to control the power of each communication channel, thereby the power control effect to each communication channel is improved, and corresponding communication channel resources also can be saved simultaneously. Furthermore, the allocation of each communication channel to control power is more flexible.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to a power control method and device. Background technique [0002] In order to adapt to the rapid growth of data services in mobile networks, High Speed ​​Downlink Package Access (HSDPA, High Speed ​​Downlink Package Access) technology was introduced into Time Division Synchronous Code Division Multiple Access (TD-SCDMA, Time Division Synchronous Code Division Multiple Access) technology and High Speed ​​Uplink Package Access (HSUPA, High Speed ​​Uplink Package Access) technology, the above two technologies may be collectively referred to as HSPA technology. [0003] In the HSDPA technology, a new high-speed downlink shared channel (HS-DSCH, High Speed ​​Downlink Shared Channel) is newly added, which is mapped to a high-speed physical downlink shared channel (HS-PDSCH, High Speed ​​Physical Downlink Shared Channel) for carrying high-speed downlink data. Among them, the HS...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/005H04Q7/38
Inventor 陈迎沈东栋常永宏
Owner TD TECH COMM TECH LTD
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