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Transmission method and equipment for acknowledgement (ACK) or negative acknowledgement (NACK) feedback information

A technology for feedback information, transmission method, applied in wireless communication, error prevention/detection using return channel, electrical components, etc.

Active Publication Date: 2012-05-23
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Embodiments of the present invention provide a method and device for transmitting ACK/NACK feedback information, which solves the problem of de

Method used

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  • Transmission method and equipment for acknowledgement (ACK) or negative acknowledgement (NACK) feedback information
  • Transmission method and equipment for acknowledgement (ACK) or negative acknowledgement (NACK) feedback information
  • Transmission method and equipment for acknowledgement (ACK) or negative acknowledgement (NACK) feedback information

Examples

Experimental program
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Embodiment 1

[0118] The UE is configured with 2 downlink carriers, downlink carrier 1 is the main downlink carrier, both downlink carriers 1 and 2 adopt the multi-codeword transmission mode, M=3, that is, it needs Bit auxiliary information, then L=2, that is, each downlink carrier corresponds to 1-bit combined feedback information; the base station schedules downlink subframes 1, 2, and 4 on downlink carrier 1, and schedules downlink subframes 1, 2 on downlink carrier 2 , 3, 4, packet loss in downlink subframe 4, such as Figure 6 As shown, using the second method in step S504, the process of transmitting ACK / NACK is as follows:

[0119] UE side:

[0120] According to the two downlink carrier configurations and the transmission mode of each downlink carrier, the UE determines that 16-bit ACK / NACK needs to be fed back, which is greater than 4 bits, so ACK / NACK combination is required;

[0121] Since L=2, downlink carriers 1 and 2 need to be spatially combined;

[0122] Since the UE has ...

Embodiment 2

[0130] The UE is configured with 2 downlink carriers, downlink carrier 1 is the main downlink carrier, and each downlink carrier adopts the multi-codeword transmission mode, M=3, that is, it needs Bit auxiliary information, then L=2, that is, each downlink carrier corresponds to 1-bit combined feedback information;

[0131] (1) Situation 1:

[0132] The base station only schedules downlink subframes 1, 2, and 3 on downlink carrier 1, such as Figure 7 As shown, using method one or method two in step S504, the process of transmitting ACK / NACK is as follows:

[0133] UE side:

[0134] According to method 1, since the UE receives the data (DAI f information) to determine that there is no scheduling on the downlink secondary carrier, or according to method 2, since the UE receives data only on the downlink primary carrier, the UE transmits according to the single-carrier channel selection scheme, that is, the UE transmits according to the scheduling on the three downlink prima...

Embodiment 3

[0166] The UE is configured with 2 downlink carriers, downlink carrier 1 is the main downlink carrier, and each downlink carrier adopts a single codeword transmission mode, M=4, that is, it needs Bit auxiliary information, then L=2, that is, each downlink carrier corresponds to 1-bit combined feedback information; the base station only schedules downlink subframes 1, 2, 3, and 4 on downlink carrier 1, and downlink subframe 1 is the PDSCH transmission of SPS And there is no dynamic PDCCH in downlink subframe 1, such as Figure 10 As shown, using method one or method two in step S504, the process of transmitting ACK / NACK is as follows:

[0167] UE side:

[0168] According to method 1 or method 2, since the UE only receives data on the downlink primary carrier, the UE transmits according to the single-carrier channel selection scheme, and because the downlink subframe 1 is the PDSCH of the SPS and there is no dynamic PDCCH in this subframe , then the UE determines that the cha...

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Abstract

The embodiment of the invention discloses a transmission method and transmission equipment for acknowledgement or non-acknowledgement (ACK or NACK) feedback information. By the technical scheme, an alternative channel resource can be determined under an application scene that time domain mergence is carried out and a physical uplink control channel (PUCCH) format1b with channel selection scheme is adopted, a problem that channel resources required by channel selection are difficult to determine when terminal equipment adopts the PUCCH format1b with channel selection scheme to transmit the ACK or NACK feedback information subjected to downlink subframe mergence is solved, a condition that the alternative channel resource cannot be determined for the scene by the prior art is avoided, and the ACK or NACK feedback information is transmitted by the PUCCH format1b with channel selection scheme under the scene that the ACK or NACK feedback information is more than 4 bits and the time domain mergence is applied.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a transmission method and equipment for ACK / NACK feedback information. Background technique [0002] For the Long Term Evolution multi-carrier system, in order to support a wider system bandwidth than the LTE (Long Term Evolution, Long Term Evolution) system, such as 100MHz, one possibility is to directly allocate 100M bandwidth spectrum, such as figure 1 One possibility is to aggregate some spectrum allocated to the existing system to form a large bandwidth for the long-term evolution multi-carrier system. At this time, the uplink and downlink carriers in the system can be configured asymmetrically, that is, users may occupy N≥ 1 carrier for downlink transmission, M≥1 carrier for uplink transmission, such as figure 2 shown. [0003] The LTE-A (Long Term Evolution Advanced, Advanced Long Term Evolution) system currently determines that it can support up to 5 car...

Claims

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Application Information

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IPC IPC(8): H04L1/18H04L1/16H04W72/04
Inventor 高雪娟沈祖康林亚男
Owner DATANG MOBILE COMM EQUIP CO LTD
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