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Method and device for processing downlink harq feedback in base station and LTE system

A technology for feedback messages and data, applied in the field of communication, can solve the problems of low efficiency and large system overhead, and achieve the effect of improving processing speed, improving processing speed and saving system overhead.

Active Publication Date: 2018-04-27
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention solves the problem of large system overhead and low efficiency when processing downlink HARQ feedback in the prior art

Method used

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  • Method and device for processing downlink harq feedback in base station and LTE system
  • Method and device for processing downlink harq feedback in base station and LTE system
  • Method and device for processing downlink harq feedback in base station and LTE system

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Embodiment 1

[0081] Such as Figure 4 As shown, it is a schematic flowchart of a method for processing downlink HARQ feedback in the LTE system of this embodiment, including:

[0082] Step S100: Set corresponding data structures C for the communication terminals in the cell, the data structure C includes n indication data, and the first data included in each indication data is used to indicate the process of the HARQ process called when each subframe transmits data The second data included in each indication data is used to indicate that the HARQ process corresponding to the first data called when each subframe transmits data has not been released and the HARQ process called when new data is transmitted on the subframe A process number, the first data and the second data are numbers composed of bits, and n is the number of subframes included in a radio frame.

[0083] In the current LTE system, one radio frame includes 10 subframes, so n=10 in this embodiment. Such as Figure 5 Shown is...

Embodiment 2

[0098] Such as Figure 7 As shown, it is a schematic flowchart of a method for processing downlink HARQ feedback in an LTE system according to Embodiment 2 of the present invention, including:

[0099] Step S200: setting corresponding data structures D for communication terminals in the cell. The data structure D includes n indication data, each indication data includes first data and corresponding third data, and each indication data further includes second data and corresponding fourth data. Wherein, the first data included in each indication data is used to indicate the process number of the HARQ process invoked when each subframe transmits data, and the third data corresponding to the first data is used to indicate that the HARQ process indicated by the first data is invoked to transmit data The number of times, the second data included in each indication data is used to indicate the process of the HARQ process that is called when the HARQ process corresponding to the fir...

Embodiment 3

[0109] Such as Figure 9 As shown, it is a schematic flowchart of a method for processing downlink HARQ feedback in an LTE system according to Embodiment 3 of the present invention, including:

[0110]Step S300: setting corresponding data structures D for communication terminals in the cell. The data structure D includes n indication data, each indication data includes first data and corresponding third data, and each indication data further includes second data and corresponding fourth data. Wherein, the first data included in each indication data is used to indicate the process number of the HARQ process invoked when each subframe transmits data, and the third data corresponding to the first data is used to indicate that the HARQ process indicated by the first data is invoked to transmit data The number of times, the second data included in each indication data is used to indicate the process of the HARQ process that is called when the HARQ process corresponding to the firs...

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Abstract

A method and device for processing downlink HARQ feedback in a base station and an LTE system, the method comprising: setting respective corresponding data structures for communication terminals in a cell, the data structures including n indication data, each indication data including the first The data is used to indicate the process number of the HARQ process that is called when each subframe transmits data, and the second data included in each indication data is used to indicate that the HARQ process corresponding to the first data that is called when each subframe transmits data has not been released. The process number of the HARQ process called when new data is transmitted on the subframe, the first data and the second data are both numbers composed of bits; when receiving any communication terminal's HARQ feedback message, then according to The HARQ feedback message updates the corresponding bit indicating data in the data structure of the communication terminal. The technical scheme of the invention can improve the efficiency of downlink HARQ feedback processing and simplify the processing flow.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for processing downlink HARQ feedback in a base station and an LTE system. Background technique [0002] In order to adapt to the high-speed and high-reliability data transmission of future mobile communication systems and to meet new service requirements, the Third Generation Partnership Project (3GPP) launched the Long Term Evolution system (LTE, Long Term Evolution). As a transition between the third generation mobile communication (3G) technology and the fourth generation mobile communication (4G) technology, LTE is called "quasi-4G" technology. LTE has the characteristics of high frequency utilization, high peak rate, high reliability transmission, low delay, etc., and has become a major technological innovation in the field of mobile communication technology. [0003] Hybrid Automatic Repeat Request (HARQ, Hybrid Automatic Repeat Request)...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18H04W88/08
Inventor 蔡威
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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