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Method, terminal and system for transmitting and receiving service information

A technology of service information and transmission method, applied in the field of communication, can solve the problems of service interruption, inability to demodulate and decode service information, etc.

Active Publication Date: 2013-03-13
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Otherwise, when the ACM profile table in the sending end is switched and the ACM profile table in the receiving end remains unchanged, since the modulation modes and coding methods corresponding to the same profile ID in each ACM profile table may be different, so It will cause the service information to be unable to be demodulated and decoded at the receiving end, resulting in service interruption

Method used

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  • Method, terminal and system for transmitting and receiving service information
  • Method, terminal and system for transmitting and receiving service information
  • Method, terminal and system for transmitting and receiving service information

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Embodiment Construction

[0046] The method, terminal and system for sending and receiving service information according to the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0047] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0048] Such as figure 2 As shown, the method for sending business information in the embodiment of the present invention includes:

[0049] S21. Receive the identification number of this adaptive coding and modulation;

[0050] S22, judging whether the current adaptive coding and modulation identification number is consistent with the adaptive coding and modulation identification number recorded in the separately stored cod...

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Abstract

A method for sending service information includes: judging whether a current ACM profile identifier (profile ID) is consistent with an ACM profile ID recorded in separately-stored coding and modulation information; when the current ACM profile ID is consistent with the ACM profile ID recorded in the separately-stored coding and modulation information, coding and modulating the service information according to the coding and modulation information; when the current ACM profile ID is inconsistent with the ACM profile ID recorded in the separately-stored coding and modulation information, coding and modulating the service information according to an ACM profile table; and sending the coded and modulated service information, where the coded and modulated service information carries the current ACM profile ID.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method, terminal and system for sending and receiving business information. Background technique [0002] Adaptive Code and Modulation ACM (Adaptive Code and Modulation) technology is a transmission technology with channel adaptive characteristics. It is based on channel estimation. It estimates the availability of the air interface link in real time through the detection mechanism at the receiving end, and automatically generates Modulation mode and coding mode switching instruction, and then feedback the switching instruction to the sending end through the feedback channel, and the sending end automatically changes the modulation mode and coding method of the service according to the switching instruction, thereby achieving a compromise between system capacity and system anti-interference ability, making the system The overall transmission performance is optima...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
CPCH04L1/0016H04L1/0003H04L1/0009
Inventor 张雪坤陈睿陈丞
Owner HUAWEI TECH CO LTD