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Method for controlling the data rate of transmitting data packets in a wireless communications system, receiver and transmitter therefor

A wireless communication system, data rate technology, applied in wireless communication, transmission link error control system, data exchange through path configuration, etc., can solve problems such as lost packets, achieve the effect of fast control operation and avoid data overflow

Inactive Publication Date: 2005-07-20
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will cause the UE to lose packets already transmitted over the air interface

Method used

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  • Method for controlling the data rate of transmitting data packets in a wireless communications system, receiver and transmitter therefor
  • Method for controlling the data rate of transmitting data packets in a wireless communications system, receiver and transmitter therefor
  • Method for controlling the data rate of transmitting data packets in a wireless communications system, receiver and transmitter therefor

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Embodiment Construction

[0037]A wireless communication system typically includes a network of base stations, each base station communicating with a plurality of mobile terminals, also referred to herein as user equipment (UE). As the skilled person understands, base stations and UEs are transceiver devices with receive and transmit radio parts. For the purpose of simplicity and illustrating this invention, only the transmit part of the base station and the receive part of the UE will be considered. Similarly, only the feedback channel from UE to base station is considered. Therefore, in the following, the base station will be designated as the transmitter, while the receiver consists of UEs. However, it is clear to those skilled in the art that the present invention is also applicable to systems in which UE constitutes a transmitter and the base station as a receiver provides an uplink feedback channel.

[0038] The structure of the uplink feedback channel is currently under investigation in 3GPP s...

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PUM

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Abstract

A method of controlling the data rate of transmitting data packets in a wireless communications system comprising a transmitter communicating with at least one receiver by means of radio communication signals employing at least one automatic repeat request (ARQ) or a hybrid ARC protocol. The data packets are allocated to at least one logical channel which is mapped on at least one physical downlink communication channel for transmission from the transmitter to the receiver. The receiver transmits signaling information relating to the receipt of said data packets in an uplink feedback channel to the transmitter. According to the invention, the data rate control is based on the receiver's current capability to process the amount of received data packets comprised in the communication signals. Further, the signaling information in the uplink feedback channel comprises a request to control the data rate in at least one logical channel. In addition, the invention relates to a receiver and transmitter adapted to carry out the control method.

Description

technical field [0001] The invention relates to a method for controlling the data rate at which data packets are transmitted in a wireless communication system according to the preamble of claim 1, furthermore the invention relates to an adapted receiver and transmitter. Background technique [0002] figure 1 The high-level structure of the Universal Mobile Telecommunications System (UMTS) is shown in . The network elements are divided into core network (CN), UMTS terrestrial radio access network (UTRAN) and user equipment (UE) according to function. The UTRAN is responsible for handling all radio related functionality, while the CN is responsible for routing calls and connections to external networks. The interconnection of these network elements is defined by open interfaces as can be seen in the figure. It should be noted that UMTS systems are modular and therefore it is possible to have several network elements of the same type. [0003] figure 2 The current UTRAN ...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L1/08H04L1/16H04L1/18H04L12/28H04L47/30H04W28/04H04W28/22H04W72/04H04W88/02
CPCH04W28/22H04L47/30H04L47/14H04L47/10H04L1/1819H04L1/0003H04L1/08H04W28/04H04L2001/0096H04L1/1835H04L1/0025H04W88/06H04L47/263H04L1/0032H04L1/1845H04L1/1671H04L1/0026H04W28/02H04W8/04
Inventor 德雷甘·彼得罗维克艾科·塞德尔铃木秀俊
Owner PANASONIC CORP
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