Method for sending and receiving ACK/NACK information, base station and terminals

A transmission method and terminal technology, applied in the field of communication, can solve problems such as resource allocation conflicts

Active Publication Date: 2014-08-06
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

Method used

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  • Method for sending and receiving ACK/NACK information, base station and terminals
  • Method for sending and receiving ACK/NACK information, base station and terminals
  • Method for sending and receiving ACK/NACK information, base station and terminals

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

Disclosed are methods for sending and receiving ACK/NACK information, a base station, and a terminal. The method for sending ACK/NACK information comprises: dividing acknowledgement (ACK)/negative acknowledgement (NACK) information of multiple terminals into X groups according to a present indication parameter, X being a positive integer greater than or equal to 1; separately performing combined coding on ACK/NACK information corresponding to each group in the foregoing X groups, so as to obtain X first blocks of bits; and mapping the foregoing X first blocks of bits to a predetermined ACK/NACK physical source and sending the foregoing X first blocks of bits. By means of the present invention, reliable transmission of HARQ-ACK information of a terminal on the NCT is implemented, the reliability of transmission of uplink data in a Low Cost terminal is improved, and problems such as a conflict of PHICH resource allocation and ICIC of a frequency domain in a 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 Physical Broadcast Channel (PBCH for short), Physical Multicast Channel (PhysicalMulticast Channel, PMCH for short), Physical Control Indicator Channel (Physical Control Indicator Channel, PCFICH for short), Physical Downlink Control Channel (Physical Downlink Control Channel , referred to as PDCCH), Physical Hybrid Automatic Repeat Request (Hybrid Automatic Repeat Request, referred to as HARQ) Indicator Channel (PhysicalHARQ Indicator Channel, referred to as PHICH), wherein, PHICH mainly carries uplin...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L1/16
CPCH04L1/18H04L1/0073H04L1/1861H04L2001/0093H04L5/0055H04W72/21H04W72/23H04L5/0007
Inventor 韩晓钢戴博夏树强苟伟鲁照华左志松
Owner ZTE CORP
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