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PHICH sending method

A technology for automatically retransmitting requests and indicating channels, applied in the field of communication, can solve the problems of long delay and large resource consumption in the calculation process, and achieve the effect of speeding up the calculation speed and reducing the consumption of resources

Inactive Publication Date: 2013-12-04
POTEVIO INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the resource consumption caused by the symbol domain is relatively large
The existing PHICH transmission needs to be processed step by step, so the calculation process of this transmission method has a long delay

Method used

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] In the embodiment of the present invention, the three steps of PHICH data resource mapping, group number and intra-group offset layer mapping and PHICH data processing are processed in parallel, thus speeding up the overall calculation speed. In addition, the processing of PHICH data is carried out in the bit domain, and the operation process is simpler than that in the symbol domain, thus reducing resource consumption.

[0033] See attached figure 2 It is a schematic diagram of the sending process of PHICH in the present invention, specifically including the following steps:

[0034] Step 201: Map PHICH data to resources to obtain time-frequency resources corresponding to the PHICH data.

[0035] The frequency domain resour...

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Abstract

The invention relates to a PHICH sending method. The method comprises the following steps: mapping PHICH data to a resource to obtain a time-frequency resource corresponding to the PHICH data; during the PHICH data resource mapping, carrying out layer mapping processing on group numbers and deviation in the group of the PHICH data so as to obtain a data caching address corresponding to the PHICH; during the PHICH data resource mapping, carrying out processing on the PHICH data in a bit domain so as to obtain processed data corresponding to the PHICH; and storing the processed data to the data caching address corresponding to the processed data and outputting the data caching address and the time-frequency resource. When the method provided by the embodiment of the invention is applied, resource consumption can be reduced and the whole calculating speed is accelerated.

Description

technical field [0001] The present invention relates to the technical field of communication, and more specifically, to a method for sending a Physical Hybrid Automatic Repeat Request Indicator Channel (PHICH). Background technique [0002] PHICH is one of the downlink transmission channels of the long-term evolution system (LTE). PHICH carries the HARQ feedback information of the uplink traffic channel. The transmission reliability is high, the processing time is short enough, and it supports multi-user transmission and multiplexing transmission, and inter-user interference and inter-cell interference Low, so the PHICH transmission process is different from other downlink channels. [0003] See attached figure 1 A schematic diagram of a PHICH transmission process in the prior art. It specifically includes the following six steps: data interface receiving data, modulating data, spreading and scrambling data, layer mapping and precoding, group signal shaping and resource ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18
Inventor 孙洋洋刘劲邢野
Owner POTEVIO INFORMATION TECH CO LTD