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Cognitive flow control based on channel quality conditions

A channel and network controller technology, applied in transmission path sub-channel allocation, wireless communication, signaling allocation, etc., can solve problems such as delay

Inactive Publication Date: 2008-08-13
INTERDIGITAL TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Any high priority L2 / 3 signals are delayed due to data in this buffer

Method used

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  • Cognitive flow control based on channel quality conditions
  • Cognitive flow control based on channel quality conditions

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Embodiment Construction

[0022] The present invention has been described with reference to the drawings, wherein like numerals indicate like components. Although the present invention is described with reference to a specific number of PDUs (such as tens of PDUs) arranged in a buffer, the number of PDUs mentioned is for simplification purposes only, and the actual number of PDUs transmitted and buffered according to the previous example is more likely to be in the hundreds PDUs or more. The present invention and its teachings are intended to be applicable to any number of PDUs and any size transmit buffers.

[0023] Generally, the present invention reduces the data flow to the Node B for the UE when the channel quality of the UE is degraded, and increases the data flow to the Node B when the channel quality of the UE improves. To control the flow of data transmission between the RNC and the Node B, the present invention monitors one or more parameters of channel quality. The data flow control can be ...

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Abstract

A system and method which improve the performance of a wireless transmission system by intelligent use of the control of the flow of data between a radio network controller (RNC) and a Node B. The system monitors certain criteria and, if necessary, adaptively increases or decreases the data flow between the RNC and the Node B. This improves the performance of the transmission system by allowing retransmitted data, signaling procedures and other data to be successfully received at a faster rate, by minimizing the amount of data buffered in the Node B. Flow control is exerted to reduce buffering in the Node B upon degradation of channel qualities, and prior to a High Speed Downlink Shared Channel (HS-DSCH) handover.

Description

[0001] The application for the present invention is PCT / US03 / 14894 with the international application date of May 8, 2003, the application number of which entered the Chinese national phase is 03810554.3, and the name is "cognitive flow control based on channel quality conditions" A divisional application of an invention patent application. technical field [0002] The present invention relates to the field of radio communications, and more particularly, the present invention relates to the application of data transmission flow control between a Radio Network Controller (RNC) and a Node B in a third generation (3G) communication system. Background technique [0003] A 3G Universal Terrestrial Radio Access Network (UTRAN) includes many RNCs, each RNC is associated with one or more Node Bs and each Node B is further associated with one or more cells. [0004] The 3G frequency division duplex (FDD) and time division duplex (TDD) modes typically use the RNC to distribute (ie, bu...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04Q7/30H04B7/26H04L1/00H04L1/16H04L1/18H04L13/08H04L47/30H04W28/14H04W72/54H04W92/12
CPCH04W28/0278H04L47/30H04L47/17H04L47/10H04L47/14H04W28/14H04L47/263H04W72/1231H04W92/12H04W72/1284H04W72/1252H04L47/26H04W28/0205H04W28/0247H04W72/542H04W72/52H04W72/21H04W28/0236H04W8/04H04L5/0057
Inventor 史蒂芬·E·泰利赵怡如
Owner INTERDIGITAL TECH CORP