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

A power control and control channel technology, applied in the field of power control, can solve power control and other problems, and achieve the effect of solving power control problems

Active Publication Date: 2017-06-13
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0032] In view of this, the main purpose of the present invention is to provide a power control method and device for a physical uplink control channel, effectively solving the power control problem when using PUCCH format3 transmission

Method used

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

Examples

Experimental program
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Effect test

Embodiment 1

[0095] In this example, if Figure 4 As shown, in the TDD system, the base station configures the UE to use PUCCH format3 to send ACK / NACK response information, and configures three serving cells for the UE: Cell#0, Cell#1, and Cell#2, among which, except for Cell#2, feedback 1 is required In addition to 1-bit ACK / NACK response information, the remaining 2 serving cells need to feed back 2-bit ACK / NACK response information. In this embodiment, it is assumed that a certain uplink subframe needs to feed back the ACK of downlink subframe #n, downlink subframe #n+1, downlink subframe #n+2 and downlink subframe #n+3 at the same time, a total of 4 downlink subframes / NACK response message, that is, the downlink window consists of downlink subframes #n, #n+1, #n+2 and #n+3, and the UE detects DL DAI=0 on the downlink subframe #n on Cell#0 , DL DAI=1 on downlink subframe #n+1, DL DAI=3 on downlink subframe #n+3; DL DAI=0 on downlink subframe #n detected on Cell#1, DL DAI=2 on frame ...

Embodiment 2

[0114] This example Figure 5 As shown, in the TDD system, the base station configures the UE to use PUCCH format3 to send ACK / NACK response information, and configures four serving cells for the UE: Cell#0, Cell#1, Cell#2, Cell#3, except for Cell#1 In addition to feeding back 1-bit ACK / NACK response information, the remaining 3 serving cells need to feed back 2-bit ACK / NACK response information. In this embodiment, it is assumed that a certain uplink subframe needs to feed back the ACK of downlink subframe #n, downlink subframe #n+1, downlink subframe #n+2 and downlink subframe #n+3 at the same time, a total of 4 downlink subframes / NACK response message, that is, the downlink window consists of downlink subframes #n, #n+1, #n+2, #n+3, and the UE detects DL DAI=0 on the downlink subframe #n on Cell#0 , DL DAI=1 on downlink subframe #n+1, DL DAI=2 on downlink subframe #n+2; DL DAI=0 on downlink subframe #n is detected on Cell#1, DL DAI=2 on frame #n+2, DLDAI=3 on downlink su...

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PUM

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Abstract

The present invention discloses a physical uplink control channel (PUCCH) power control method. A user equipment (UE) determines the power control parameter nHARQ required for transmission of the third PUCCH format (PUCCH format3); according to the nHARQ, PUCCH format3 Power control for transmission; the present invention also discloses a PUCCH power control device. Through the scheme of the present invention, for a TDD system, the power control parameter nHARQ required for transmission using PUCCH format3 can be determined, effectively solving the problem of using PUCCH format3 Power control issues during feedback.

Description

technical field [0001] The invention relates to the power control technology of a mobile communication system, in particular to a power control method and device for a physical uplink control channel. Background technique [0002] In the 3rd Generation Partnership Project (3GPP, The 3rd Generation Partnership Project) Long Term Evolution (LTE) system, including Frequency Division Duplex (FDD, Frequency Division Duplex) mode and Time Division Duplex (TDD, Time Division Duplex) mode frame structure. Such as figure 1 As shown, in the frame structure of FDD mode, a wireless frame of 10 milliseconds (ms) is composed of twenty slots (slots) with a length of 0.5 ms and numbered 0 to 19, and slots 2i and 2i+1 A subframe (subframe) i with a length of 1 ms, where 0≤i≤9. In the frame structure of TDD mode, a 10ms wireless frame is composed of two half frames (half frame) with a length of 5ms, and a half frame includes 5 subframes with a length of 1ms, and subframe i is defined as 2 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/14H04L1/16
CPCH04W52/146H04W52/325H04W52/48H04W52/04
Inventor 杨维维吴欣戴博喻斌梁春丽
Owner ZTE CORP
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