Method for transmitting message in physical mixing automatic repeat request indicator channel and system

A technology that automatically requests retransmission and physical mixing, which is applied in the field of communication to achieve the effect of guaranteed performance and power saving

Inactive Publication Date: 2009-09-09
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to propose a physical hybrid automatic retransmission request indication channel information transmission method and system to solve the problem of how to feed back response information in the PHICH channel of multiple downlink component carriers

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  • Method for transmitting message in physical mixing automatic repeat request indicator channel and system
  • Method for transmitting message in physical mixing automatic repeat request indicator channel and system
  • Method for transmitting message in physical mixing automatic repeat request indicator channel and system

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Embodiment Construction

[0056] The application scenario of the present invention is: one uplink component carrier corresponds to multiple downlink component carriers in the LTE-A system. The present invention mainly comprises:

[0057] The terminal adopts the space division multiplexing mode when performing uplink transmission, and sends data of two transmission blocks on one uplink carrier at the same time;

[0058] When feeding back the response information of the two transport blocks, the base station divides the multiple downlink component carriers corresponding to the uplink component carriers into two carrier groups, or selects two carrier groups from the multiple downlink component carriers, and uses the The PHICH channel corresponding to the carrier group feeds back the response information;

[0059] Wherein, each carrier group includes one or more downlink component carriers.

[0060] Specifically,

[0061] Assume that the number of uplink and downlink component carriers is not equal when...

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Abstract

The invention discloses a transmission method of response message in a physical mixing automatic repeat request indicator channel and a system. A termination adopts a space division multiplexing mode when upward transmitting and sends data of two transmission blocks on an uplink component carrier; when a base station feedbacks the response information of the two transmission blocks, a plurality of downlink component carriers which the uplink component carrier is corresponding to are divided into two carrier groups or two carrier groups are selected from the downlink component carriers, the corresponding physical mixing automatic repeat request indicator channel of the carrier feedbacks the response message. The invention solves the problem of how to feedback the response message of the PHICH channel in a plurality of downlink component carriers and guarantees the thoughput performance of the uplink system.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and system for transmitting response information in a Physical Hybrid ARQ Indicator Channel (PHICH). Background technique [0002] The rapid development of digital communication systems puts forward higher requirements for the reliability of data communication. However, under harsh channels, especially in high data rate or high-speed mobile environments, serious problems such as multipath interference and Doppler shift affect system performance. Therefore, effective error control technology, especially Hybrid Automatic Repeat Request (HARQ) technology has become a research hotspot in the communication field. [0003] In the HARQ mode, the code sent by the originating end can not only detect errors, but also have certain error correction capabilities. After receiving the codeword, the decoder at the receiving end first checks the error situation, and if it is within th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04W28/04
Inventor 夏树强梁春丽戴博米德忠
Owner ZTE CORP
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