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Method of obtaining physical channel resources in code modulation mode

A coding modulation method and a technology of physical channel resources, applied in electrical components, transmission systems, data exchange through path configuration, etc., can solve problems such as slow terminal switching speed, and achieve the effect of saving overhead

Inactive Publication Date: 2006-07-19
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, this mapping relationship will cause the switching speed of the terminal to be slow

Method used

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  • Method of obtaining physical channel resources in code modulation mode
  • Method of obtaining physical channel resources in code modulation mode
  • Method of obtaining physical channel resources in code modulation mode

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0043] The present invention provides two specific implementation schemes, which will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0044] The reason why the prior art needs to set the mapping relationship of the TLV coding and modulation schemes in the channel descriptor message is because the coding and modulation scheme index numbers cannot directly correspond to all kinds of coding and modulation schemes. In view of this situation, the first solution provided by the present invention is to expand the coded modulation index number on the basis of the current protocol so that it is consistent with the current FEC Code Type field. Currently, there are 256 types of FECCode Type fields, so the coding and modulation mode index number can be extended to 8 bits.

[0045] DIUC / UIUC

FEC Code Type

0

0=QPSK(CC)1 / 2

1

QPSK(CC)3 / 4

2

16-QAM (CC)1 / 2

3

16-QAM (CC...

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PUM

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Abstract

The invention relates to a method of code modulation for attaining the physical channel resource, which first enlarging the index number of code modulation type; and directly setting the projection relationship between the code modulation type index number and all code modulation types in the terminal and the base station; then the base station checks the code modulation index number relative to present used code modulation type according to said projection relationship; transmitting the code modulation type index number via the chain circuit projection information to the terminal and deleting the TLV code modulation type projection relationship information of channel description mark information; the terminal attains the code modulation type index number from received chain circuit projection information and checks the code modulation type relative to the code modulation type index number according to the stored projection relationship. The invention also discloses another method of code modulation for attaining the physical channel resource. The invention can save the consumption of channel description mark information when attaining the burst code modulation type.

Description

technical field [0001] The present invention relates to the technical field of broadband wireless access, more specifically to a method for acquiring a coding and modulation mode of a physical channel resource (burst) in a broadband wireless access system. Background technique [0002] The IEEE 802.16 protocol defines the fixed broadband wireless access (BWA) wireless metropolitan area network standard, which defines different physical layer technologies for different frequency bands. The scope of application of this standard is mainly for residential, small office / home office (SOHO), teleworkers and small business users (SME) markets. [0003] Specifically, the IEEE 802.16 protocol defines two messages similar to broadcast messages in the GSM system. These two messages are the Downlink Channel Descriptor message (DCD, Downlink Channel Descriptor) for the downlink channel and the uplink channel descriptor for the uplink channel. Descriptor (UCD, Uplink Channel Descriptor). ...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L12/28
Inventor 吴建军
Owner HUAWEI TECH CO LTD
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