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Hybrid automatic repeat request (HARQ) method and base station equipment

A technology of hybrid automatic and base station equipment, applied in the field of communication, can solve the problems of low success rate of data packet decoding and low system spectrum efficiency

Inactive Publication Date: 2010-12-01
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present invention provide a hybrid automatic retransmission method and base station equipment to solve the problem of low decoding success rate of data packets of terminals and The problem of low spectral efficiency of the system

Method used

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  • Hybrid automatic repeat request (HARQ) method and base station equipment
  • Hybrid automatic repeat request (HARQ) method and base station equipment
  • Hybrid automatic repeat request (HARQ) method and base station equipment

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Embodiment Construction

[0022] Embodiments of the present invention improve the existing HARQ process and base station equipment, and aim at the situation that the base station does not receive any feedback information about the success of HARQ packet reception sent by the terminal, through the improved HARQ process and base station equipment, thereby Ensure the successful decoding of HARQ packets, thereby improving the system spectrum efficiency.

[0023] The reasons why the base station cannot receive any feedback information about the success of receiving the HARQ packet sent by the terminal may include:

[0024] When the base station assigns downlink resources for the terminal to transmit data packets, the terminal does not decode or cannot successfully decode the downlink resource indication information, resulting in the inability to know the downlink resources allocated by the base station. In this way, the terminal naturally cannot receive the transmission from the base station HARQ packet, it...

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Abstract

The invention discloses a hybrid automatic repeat request method and base station equipment, which aims at solving the problems of low terminal packet decoding success rate and low system spectrum efficiency in the HARQ process under the condition that the base station does not receive any feedback information that is sent by the terminal and is about whether the HARQ packet is received successfully or not. The method of the invention comprises: the base station utilizes downlink resources assigned for the terminal and adopts an HARQ mode to send a first sub-packet of an HARQ packet; and if the base station does not receive any feedback information which is sent by the terminal and is about whether the HARQ packet is received successfully or not within a set time period, the base station assigns new downlink resources for the terminal and utilizes the newly assigned downlink resources to transmit the first sub-packet of the HARQ packet to the terminal again.

Description

technical field [0001] The present invention relates to the communication field, in particular to a hybrid automatic retransmission processing method and base station equipment. Background technique [0002] In the communication system, the base station refers to the equipment that provides services to the terminal. The base station communicates with the terminal through the uplink and downlink. The downlink (forward) refers to the direction from the base station to the terminal, and the uplink (reverse) refers to the direction from the terminal to the base station. . Multiple terminals can simultaneously send data to the base station through the uplink, and can also receive data from the base station through the downlink at the same time. [0003] In order to overcome the influence of wireless mobile channel time-varying and multipath fading on signals, wireless communication systems can use error control methods based on forward error correction (Forward Error Correction,...

Claims

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Application Information

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IPC IPC(8): H04W28/04H04L1/18H04W88/08
CPCH04L1/1867
Inventor 刘锟鲁照华罗薇刘颖
Owner ZTE CORP
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