Method and apparatus for link control in a wireless communication system

A wireless communication system and link technology, applied in the field of data transmission control in wireless communication systems

Inactive Publication Date: 2011-01-26
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Packets sent on different links can experience different delays for various reasons

Method used

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  • Method and apparatus for link control in a wireless communication system
  • Method and apparatus for link control in a wireless communication system
  • Method and apparatus for link control in a wireless communication system

Examples

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Embodiment Construction

[0018] The techniques described herein may be used in various wireless communication systems such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA, and others. The terms "system" and "network" are often used interchangeably. A CDMA system may implement a radio technology such as Universal Terrestrial Radio Access (UTRA), cdma2000, and so on. UTRA includes Wideband-CDMA (WCDMA) and other variants of CDMA. cdma2000 covers IS-2000, IS-95 and IS-856 standards. A TDMA system can implement a radio technology such as Global System for Mobile Communications (GSM). The OFDMA system can implement such as Evolved UTRA (E-UTRA), Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash- and other radio technologies. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). 3GPP Long Term Evolution (LTE) and LTE-Advanced are new releases of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-Advanced and GSM are described in documents from...

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PUM

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Abstract

Techniques for controlling transmission of packets on multiple links are described. In one design, a transmitter may generate packets of data for a receiver, assign the packets with sequence numbers from a single sequence number space, demultiplex the packets into multiple streams for multiple links, and send each stream of packets of the associated link to the receiver. The receiver may receive some packets in error, and the correctly received packets may be out of order. In one design, the receiver may maintain the largest sequence number of correctly received packets for each link. After detecting at least one missing packet, the receiver may send status information conveying the missing packet(s) and the largest sequence numbers for all links to the transmitter. The transmitter may use the largest sequence numbers for all links and its packet-to-link mapping to determine whether to quickly resend each missing packet or wait.

Description

[0001] This patent application claims U.S. Provisional Application No. 61 / 031,612, filed February 26, 2008, entitled "METHOD ANDAPPARATUS FOR LINK CONTROL IN WIRELESS COMMUNICATIONS," and filed June 25, 2008, entitled "METHOD AND APPARATUS FOR LINK CONTROL IN WIRELESS COMMUNICATIONS" which has priority to U.S. Provisional Application No. 61 / 075,452, which has been assigned to the assignee of the present application and is hereby expressly incorporated by reference. technical field [0002] In general, the present invention relates to communication, and in particular, the present invention relates to techniques for controlling data transmission in a wireless communication system. Background technique [0003] Wireless communication systems are widely used to provide various communication services (eg, voice, video, packet data, messaging, broadcast, etc.). These wireless systems may be multiple-access systems capable of supporting multiple users by sharing available system re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18
CPCH04L2001/0096H04L25/14H04L1/1867H04L1/1607
Inventor D·张M·亚武兹B·P·莫汉蒂A·戈尔米
Owner QUALCOMM INC
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