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Method for sending and receiving ack/nack information, base station and terminal

A sending method and terminal technology, applied to base stations and terminals, in the field of sending and receiving positive acknowledgment/negative acknowledgment (ACK/NACK) information, capable of solving problems such as resource allocation conflicts

Active Publication Date: 2019-01-08
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Aiming at the problems of resource allocation conflicts and DM-RS-based demodulation when ACK / NACK information is sent in the related art, the present invention provides a method for sending and receiving ACK / NACK information, a base station, and a terminal to at least solve the above problems

Method used

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  • Method for sending and receiving ack/nack information, base station and terminal
  • Method for sending and receiving ack/nack information, base station and terminal
  • Method for sending and receiving ack/nack information, base station and terminal

Examples

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Embodiment 1

[0196] In the embodiment of the present invention, pre-defined time-frequency resources, joint coding, the size of the bit block after joint coding is equivalent to DCIFormat1C, no CRC is added, the size of rate matching is the same as the existing aggregation level, fixed resource location mapping, distributed Transmission and port alternate selection.

[0197] This embodiment provides a method for designing an enhanced physical HARQ indicator channel based on multi-terminal HARQ-ACK bit joint coding.

[0198] (1) The processing on the network side includes the following processes:

[0199] The network side pre-defines the time-frequency resources of the enhanced physical HARQ indicator channel. The pre-defined time-domain resources include: the occupied subframe and the initial OFDM symbol can be pre-defined, and the pre-defined occupied sub-frame is n+k, where n It is the subframe when the base station receives the PUSCH of the terminal, k is an integer less than or equal ...

Embodiment 2

[0215] In the embodiment of the present invention, pre-defined time-frequency resources, joint coding + RM, the size of the bit block after joint coding is equivalent to DCI Format1C, no CRC is added, the size of rate matching is the same as the existing aggregation level, fixed resource location mapping, Distributed transmission and port alternate selection.

[0216] This embodiment provides a method for designing an enhanced physical HARQ indicator channel based on multi-terminal HARQ-ACK bit joint coding.

[0217] (1) The processing on the network side includes the following processes:

[0218] The network side pre-defines the time-frequency resources of the enhanced physical HARQ indicator channel. The pre-defined time-domain resources include: the occupied subframe and the initial OFDM symbol can be pre-defined, and the pre-defined occupied sub-frame is n+k, where n It is the subframe when the base station receives the PUSCH of the terminal, k is an integer less than or ...

Embodiment 3

[0234] In the embodiment of the present invention, pre-defined time-frequency resources, joint coding + Dual RM, the size of the bit block after joint coding is equivalent to DCI Format1C, no CRC is added, the size of the rate matching is the same as the existing aggregation level, and the resource location is fixed Mapping, distributed transmission and port alternate selection.

[0235] This embodiment provides a method for designing an enhanced physical HARQ indicator channel based on multi-terminal HARQ-ACK bit joint coding.

[0236] (1) The processing on the network side includes the following processes:

[0237] The network side pre-defines the time-frequency resources of the enhanced physical HARQ indicator channel. The pre-defined time-domain resources include: the occupied subframe and the initial OFDM symbol can be pre-defined, and the pre-defined occupied sub-frame is n+k, where n It is the subframe when the base station receives the PUSCH of the terminal, k is an i...

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Abstract

The present invention discloses a method for sending and receiving ACK / NACK information, a base station and a terminal, wherein the method for sending ACK / NACK information includes: sending the positive confirmation ACK / negative confirmation NACK information of multiple terminals according to preset indication parameters Divided into X groups, where X is a positive integer greater than or equal to 1; respectively jointly encode the ACK / NACK information corresponding to each group in the above X groups to obtain X first bit blocks; the above X first bit blocks Map to a predetermined ACK / NACK physical resource and send it. Through the present invention, the reliable transmission of HARQ-ACK information of the terminal on the NCT is realized, the reliability of uplink data transmission in the Low Cost terminal is improved, and problems such as PHICH resource allocation conflict and frequency domain ICIC under the small cell are solved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method for sending and receiving acknowledgment / negative acknowledgment (ACK / NACK) information, a base station and a terminal. Background technique [0002] In Long-Term Evolution (LTE for short) version 10 (Release 10., Rel-10 for short), the physical downlink channel mainly includes: Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH for short), physical broadcast Channel (Physical Broadcast Channel, PBCH for short), Physical Multicast Channel (Physical Multicast Channel, PMCH for short), Physical Control Indicator Channel (Physical Control Indicator Channel, PCFICH for short), Physical Downlink Control Channel (Physical Downlink Control Channel, short for PDCCH), Physical Hybrid Automatic Repeat Request (HARQ for short) Indicator Channel (Physical HARQ Indicator Channel, PHICH for short), where PHICH mainly carries uplink HARQ ACK / NACK information, mu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/16
CPCH04L1/0073H04L1/1861H04L2001/0093H04L5/0055H04W72/21H04W72/23H04L5/0007
Inventor 韩晓钢戴博夏树强苟伟鲁照华左志松
Owner ZTE CORP