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Power control method and device of physical uplink control channel (PUCCH)

A technology of power control and physical uplink, applied in power management, wireless communication, error prevention/detection using the return channel, etc., can solve the problem that the PUCCH power control parameters are not given, etc.

Active Publication Date: 2011-06-01
ZTE CORP
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Problems solved by technology

[0035] In the LTE-A system, for the TDD mode, when the multiplexing feedback method and the format 3 feedback method are used, no specific solution is given on how to configure the power control parameters of the PUCCH

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  • Power control method and device of physical uplink control channel (PUCCH)
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  • Power control method and device of physical uplink control channel (PUCCH)

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Embodiment Construction

[0091] Figure 4 A flow chart of the power control method for realizing the physical uplink control channel of the present invention, such as Figure 4 shown, including the following steps:

[0092] Step 400: In a TDD-based system, the base station determines power control parameters for physical uplink power control according to the method of feeding back response information.

[0093] In this step, the method of feeding back the acknowledgment information (ACK / NACK) includes: the method of format 1b joint channel selection, and the method of PUCCH control format 3.

[0094] Step 401: Perform power control according to the determined power control parameters. The specific implementation of this step is consistent with the prior art, and will not be repeated here. This step emphasizes that the power control is performed using the power control parameters of the physical uplink power control in the system based on the TDD mode determined by the method provided in step 400 of...

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Abstract

The invention discloses a power control method and a power control device of a physical uplink control channel (PUCCH). In a time division duplex (TDD) mode-based system, a base station determines a power control parameter of physical uplink power control according to a response information feedback method and performs power control according to the determined power control parameter. Through the method, the power control parameter of the PUCCH is configured by a multiplexing feedback way and a format 3 feedback way in the TDD mode, so that power control is realized.

Description

technical field [0001] The invention relates to a power control technology of a mobile communication system, in particular to a power control method and device for a physical uplink control channel of a Long Term Evolution (LTE, LongTerm Evolution) system. Background technique [0002] In the 3rd Generation Partnership Project (3GPP, The 3rd Generation Partnership Project) LTE system, uplink power control (uplink power control, referred to as uplink power control) is used to control the transmit power of an uplink physical channel (Uplink Physical Channel) to Compensate for channel path loss and shadow fading, and suppress inter-cell interference. The uplink physical channels for uplink power control include Physical Uplink Shared Channel (PUSCH, Physical Uplink Shared Channel), Physical Uplink Control Channel (PUCCH, Physical Uplink Control Channel) and Measurement Reference Signal (SRS, SoundingReference Signal). In the LTE system, the uplink power control adopts a contro...

Claims

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Application Information

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IPC IPC(8): H04W52/14H04W52/54H04L1/18
CPCH04W52/146
Inventor 吴欣戴博喻斌杨维维
Owner ZTE CORP
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