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HARQ-ACK (Hybrid Automatic Repeated Request Acknowledge) feedback information transmission method, system, terminal and base station

A transmission method and technology for feedback information, applied in transmission systems, digital transmission systems, and multiple use of transmission paths, etc., can solve the problems of reduced reception energy of HARQ-ACK feedback information, affecting HARQ-ACK feedback coverage performance, etc.

Inactive Publication Date: 2015-07-08
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limited transmission power of the MTC terminal with enhanced coverage, it is allocated to the HARQ-ACK feedback information and uplink service data at the same time, which leads to the reduction of the received energy of the HARQ-ACK feedback information, and finally affects the HARQ-ACK feedback information. Coverage performance of ACK feedback

Method used

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  • HARQ-ACK (Hybrid Automatic Repeated Request Acknowledge) feedback information transmission method, system, terminal and base station
  • HARQ-ACK (Hybrid Automatic Repeated Request Acknowledge) feedback information transmission method, system, terminal and base station
  • HARQ-ACK (Hybrid Automatic Repeated Request Acknowledge) feedback information transmission method, system, terminal and base station

Examples

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no. 3 example

[0265] In the third embodiment, it is assumed that the PUCCH channel for sending the HARQ-ACK feedback is a format 1 / 1a / 1b channel, and it is assumed that the reference PUCCH channel is a format 1 / 1a / 1b channel whose index is 0. So,

[0266] First, determine that the direction of the PUCCH channel offset is positive "+";

[0267] Then, according to the index of the first subframe occupied by the PDCCH, determine the size of the PUCCH channel offset as |N Offset |, where |.| represents the operation of taking the absolute value or size. For example, formula (6) can be used to determine the size of the PUCCH channel offset:

[0268] | N Offset | = mod ( C 1 · s f , N PUCCH ( 1 ) ...

no. 4 example

[0273] In the fourth embodiment, it is assumed that the PUCCH channel for sending HARQ-ACK feedback is a format 1 / 1a / 1b channel, and it is assumed that the reference PUCCH channel is indexed as N PUCCH (1) -1 for format 1 / 1a / 1b channels. So,

[0274] First, determine that the direction of the PUCCH channel offset is negative "-";

[0275] Then, according to the index of the first subframe occupied by the PDCCH, determine the size of the PUCCH channel offset as |N Offset |, where |.| represents the operation of taking the absolute value or size. For example, formula (6) can be used to determine the size of the PUCCH channel offset.

[0276] Finally, use formula (5) to determine the PUCCH channel, specifically,

[0277] In the fourth embodiment,

[0278] N ref = N PUCCH ( 1 ) - 1 , N Offset =-|N ...

no. 5 example

[0280] In the fifth embodiment, it is assumed that the PUCCH channel for sending HARQ-ACK feedback is a format 1 / 1a / 1b channel, and it is assumed that the reference PUCCH channel is indexed as Q (1) Format 1 / 1a / 1b channels. So,

[0281] First, determine that the direction of the PUCCH channel offset is positive "+";

[0282] Then, according to the index of the first subframe occupied by the PDCCH, determine the size of the PUCCH channel offset as |N Offset |, where |.| represents the operation of taking the absolute value or size. For example, formula (7) can be used to determine the size of the PUCCH channel offset:

[0283] | N Offset | = mod ( C 1 · s f , N PUCCH ( 1 ) ...

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Abstract

A method, system, terminal and base station for transmitting Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) feedback information are disclosed in the embodiments of the present invention, comprising that: a Physical Uplink Control Channel (PUCCH) corresponding to a terminal is determined by a base station according to a preset transmission policy. The transmission policy is that: the base station sends a PUCCH indication signaling to the terminal, and the indication signaling carries information of one PUCCHs in the preset N PUCCHs, and the PUCCH is the PUCCH corresponding to the terminal; or, the PUCCH corresponding to the terminal is determined according to the preset resources; or, the preset PUCCH special for the terminal is the PUCCH corresponding to the terminal; HARQ-ACK feedback information is received by the base station via the determined PUCCH.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a transmission method, system, terminal and base station of HARQ-ACK feedback information. Background technique [0002] Machine Type Communication (MTC, Machine Type Communication) is also called Machine to Machine (M2M, Machine To Machine), and its user equipment (UE, User Equipment) or terminal is the main application form of the Internet of Things at this stage. Low power consumption and low cost are important guarantees for its large-scale application. At present, M2M technology has been supported by internationally renowned manufacturers such as NEC, HP, CA, Intel, IBM, AT&T, and recognized by mobile operators in various countries. Currently, most of the M2M devices deployed in the market are mainly based on the Global System of Mobile communication (GSM, Global System of Mobile communication) system. [0003] In recent years, due to the high spectrum efficienc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/16H04L1/18H04L5/00
CPCH04L1/1854H04L1/08H04L1/1861H04L5/0055H04L1/1812H04L5/0058
Inventor 陈宪明戴博鲁照华
Owner ZTE CORP
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