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Uplink control channel transmitting method and device

A technology of a control channel and a transmission method, which is applied in the field of an uplink control channel transmission method and device, can solve problems such as extended feedback time in a TDD system, and achieve the effect of reducing feedback delay

Inactive Publication Date: 2017-06-27
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention provides a method and device for sending an uplink control channel to at least solve the problem of extended feedback time in a TDD system

Method used

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  • Uplink control channel transmitting method and device

Examples

Experimental program
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Effect test

Embodiment 1

[0117] Optional Embodiment 1 of the present invention provides an uplink control channel transmission method with uplink and downlink subframe configuration 2. For uplink and downlink subframe configuration 2, 2 uplink subframes (U subframes) feed back 8 downlink subframes (D subframes). ) (including downlink pilot time slots (DwPTS) in 2 special subframes (S subframes)), Figure 8 It is a schematic diagram of the feedback timing interval of each subframe when k≥2 according to the uplink and downlink subframe configuration 2 of an optional embodiment of the present invention without adding feedback resources. The feedback timing interval of each subframe is as follows Figure 8 As shown, the average k value at this time is 3.75, and the average time delay of a one-way RTT is 5.75.

[0118] Figure 9 It is a schematic diagram of the feedback timing interval of each subframe when k≥2 when the uplink and downlink subframe configuration 2 in the special subframe is added as the f...

Embodiment 2

[0125] Optional Embodiment 1 of the present invention provides an uplink control channel transmission method with uplink and downlink subframe configuration 3. For uplink and downlink subframe configuration 3, 3 uplink subframes feed back 7 downlink subframes (including 1 special subframe) DwPTS), Figure 11 It is a schematic diagram of the feedback timing interval of each subframe when k≥2 according to the uplink and downlink subframe configuration 3 of an optional embodiment of the present invention without adding feedback resources, and the feedback timing interval of each subframe is as follows Figure 11 As shown, the average k value at this time is 4.86, and the one-way average delay of one RTT is 7.28.

[0126] Figure 12 It is a schematic diagram of the feedback timing interval of each subframe when k≥2 when the uplink and downlink subframe configuration 3 in the special subframe is added as the feedback resource according to the optional embodiment of the present inv...

Embodiment 3

[0131]Optional Embodiment 1 of the present invention provides an uplink control channel transmission method with uplink and downlink subframe configuration 4. For uplink and downlink subframe configuration 4, 2 uplink subframes feed back 8 downlink subframes (including 1 special subframe) DwPTS), Figure 14 It is a schematic diagram of the feedback timing interval of each subframe when k≥2 according to the uplink and downlink subframe configuration 4 of an optional embodiment of the present invention without adding feedback resources. The feedback timing interval of each subframe is as follows Figure 14 As shown, the average k value at this time is 5, and the one-way average delay of one RTT is 7.

[0132] Figure 15 It is a schematic diagram of the feedback timing interval of each subframe when k≥2 when the uplink and downlink subframe configuration 4 in the special subframe is added as a feedback resource according to an optional embodiment of the present invention, as sho...

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PUM

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Abstract

The invention provides an uplink control channel transmitting method and device. The uplink control channel transmitting method comprises transmitting an uplink control channel in one or more predetermined subframes of a time division duplex (TDD) frame; wherein the uplink control channel is used for carrying the feedback information for the downlink traffic channel; and the predetermined subframes include at least one of the following subframes: a special subframe and a downlink subframe. By means of the invention, the problem that the feedback delay of the TDD system is long is solved, and the feedback delay of the TDD system is reduced.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a method and device for sending an uplink control channel. Background technique [0002] The existing Long-Term Evolution (referred to as LTE) / advanced system (Long-Term Evolution Advance, referred to as LTE-Advance or LTE-A) is divided into Frequency Division Duplexing (Frequency Division Duplexing, referred to as FDD) and Time Division Duplexing (Time Division Duplexing, TDD for short) two frame structures. figure 1 It is a schematic diagram of the frame structure of the FDD mode according to the related art. Such as figure 1 As shown, a 10ms wireless frame consists of twenty slots (slots) with a length of 0.5ms and numbered 0 to 19, and slots 2i and 2i+1 form subframes (subframe) i, i with a length of 1ms is 0 or a natural number. figure 2 is a schematic diagram of a frame structure of a TDD mode according to related technologies, such as figure 2 As shown, a 10ms rad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/16H04W72/12
CPCH04L1/0004H04L1/1607H04W72/21H04L1/00
Inventor 石靖夏树强张雯韩祥辉任敏张文峰
Owner ZTE CORP
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