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

Combined selection method of transmission format

A transmission format combination and combined transmission technology, which is applied in transmission systems, selection devices, digital transmission systems, etc., can solve the problems of not being able to meet the power requirements of the RNC system, lack of overall system considerations, and negative impacts on power

Inactive Publication Date: 2009-04-15
HUAWEI TECH CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The TFC selection method in the prior art does not consider the whole system; when the network is congested, it will have a negative impact on the power and cannot meet the power requirements of the RNC system

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
  • Combined selection method of transmission format
  • Combined selection method of transmission format

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The principle of TFC selection by the MAC protocol stack is that at the moment when the transmission time interval arrives, the high-priority transmission channel in a code combination transmission channel has the priority of selection, that is, the selection is made according to the priority order of the transmission channels, and each transmission channel Choose your own transmission format indicator (TFI), and use the TFI selected by the transmission channel with higher priority than your own in the same code combination transmission channel as your own selection restriction. The combination of TFIs selected by all transmission channels of a code combination transmission channel is the final TFCI selected by this code combination transmission channel at this transmission time interval. At the moment of the next transmission time interval, the code combination transmission channel will perform this process again, and select the TFCI at this moment. The life cycle of T...

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 method is suitable to transmission channel of code combination in WCDMA RNC system. The method includes steps: selecting transmission format for signaling channel; selecting transmission format for non-BE channel; selecting transmission format for BE channel finally. Based on congestion state in network, when selection of transmission format is carried out for BE channel, limiting speed process is carried out for transmission format of channel in order to reduce network congestion and meet power needed by RNC system.

Description

technical field [0001] The invention relates to a WCDMA (Wideband Code Division Multiple Access) wireless network, in particular to a transmission format combination selection method of a code combination transmission channel in a WCDMA RNC (Radio Network Controller) system. Background technique [0002] Transport format combination (TFC, Transport Format Combination) selection is an important function of the media access control (MAC, Media Access Control) protocol layer. The purpose of this function is: in the downlink transmission direction, according to the instantaneous rate of the transmission channel data flow and the transmission channel Priority, load status of the current air interface and other information, in the transport format combination set (TFCS) configured in L3, select the appropriate transport format (TF, Transport Format) for each transport channel and indicate it with the transport format (TFI, Transport Format Indicator) to notify L1. The TFIs select...

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): H04B7/26H04W52/32H04W80/02H04W28/06H04J13/00H04L1/00H04Q3/545
Inventor 邱华曹钢楚志远蔡敏
Owner HUAWEI TECH CO LTD