Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and device for detecting response message

A technology for replying messages and messages, applied in error prevention/detection using return channels, shaping networks in transmitters/receivers, digital transmission systems, etc., and can solve the problem of low detection performance of replying messages

Inactive Publication Date: 2013-01-16
TD TECH COMM TECH LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] Because the existing method of detecting the response message is based on the assumption that the prior probability of the ACK message and the NACK message is the same, and this assumption is inconsistent with the actual situation, the detection performance of the response message on the E-HICH is not good. high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for detecting response message
  • Method and device for detecting response message
  • Method and device for detecting response message

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0035] The present invention detects whether the response message on the E-HICH is a NACK message or an ACK message according to the prior probability of the NodeB sending the NACK message and the ACK message. The prior probability of the NodeB sending the NACK message and the ACK message can be obtained through the BLER target value of the outer loop power control of the E-PUCH. The prior probability of ACK is numerically equal to 1 minus the BLER target value, and the prior probability of NACK is numerically equal to the BLER target value.

[0036] figure 2 is the flow chart of the method for detecting the response message provided by the present invention, such as figure 2 As shown, the method includes:

[0037] Steps 201 to...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The embodiment of the invention discloses a method and a device for detecting a response message. The detection method comprises the following steps of: performing demodulation and descrambling on the estimation of a symbol sequence on E-HICH, and removing idle bits to obtain a soft-decision bit sequence without the idle bits; calculating a relevance value c between the soft-decision bit sequenceand a signature sequence corresponding to the response message; and determining a detection threshold value based on the prior probability PNACK of a non-acknowledgement NACK message, the prior probability PNACK of an acknowledgement ACK message and the relevance value c, and judging whether the received response message is the NACK message or the ACK message according the detection threshold value. The device comprises a relevance value c acquisition module, a detection threshold value determining module and a response message type determining module. By applying the method and the device, the detection performance of the response message on the E-HICH can be improved.

Description

technical field [0001] The present invention relates to the field of mobile communications, and in particular, to a method and device for detecting a response message. Background technique [0002] At present, on the scheduled E-HICH channel and the non-scheduled E-HICH channel in the High Speed ​​Uplink Packet Access (HSUPA) system, the method for the base station (NodeB) to send the response message is the same, The acknowledgement messages include acknowledgement acknowledgement (ACK) messages and non-acknowledgement acknowledgement (NACK) messages. [0003] Specifically, regardless of whether it is a scheduled E-HICH or an unscheduled E-HICH, the methods for the NodeB to send the ACK message and the NACK message are as follows: [0004] In the determined E-HICH subframe, the NodeB needs to feed back a response message according to the decoding result of the data block sent by the UE on the E-PUCH channel. Specifically, the NodeB determines a signature sequence on the E-...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/16H04L25/03
Inventor 魏立梅赵渊沈东栋
Owner TD TECH COMM TECH LTD