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A power control method and device for a physical uplink control channel

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

Active Publication Date: 2016-07-06
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0034] In the LTE-A system, in the TDD mode, when the multiplexing feedback method and the format3 feedback method are used, no specific solution is given on how to configure the power control parameters of the PUCCH

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  • A power control method and device for a physical uplink control channel
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  • A power control method and device for a physical uplink control channel

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Embodiment Construction

[0090] 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:

[0091] 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.

[0092] 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.

[0093] 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 device for a physical uplink control channel. In a system based on a TDD mode, a base station determines a power control parameter for physical uplink power control according to a method of feeding back response information, and performs power control according to the determined power control parameter. Power Control. Through the method of the present invention, the configuration of the power control parameters of the PUCCH is realized when the multiplexing feedback mode and the format 3 feedback mode are adopted in the TDD mode, thereby realizing power control.

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, Long Term Evolution) system. Background technique [0002] In the 3rd Generation Partnership Project (3GPP, The3rdGeneration Partnership Project) LTE system, uplink power control (uplink power control, referred to as uplink power control) is used to control the transmit power of the uplink physical channel (UplinkPhysicalChannel) to compensate for channel path loss and shadow fading , and suppress inter-cell interference. Wherein, the uplink physical channels for uplink power control include Physical Uplink Shared Channel (PUSCH, PhysicalUplinkSharedChannel), Physical Uplink Control Channel (PUCCH, PhysicalUplinkControlChannel) and Measurement Reference Signal (SRS, SoundingReferenceSignal). In the LTE system, the uplink power control adopts a contr...

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Application Information

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