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Recovery mechanism for rohc with lost initialization and refresh messages

A mechanism, technology of negative acknowledgment message, applied in the field of recovery mechanism for robust header compression, which can solve the problem of downlink performance degradation and other issues

Active Publication Date: 2018-03-27
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This interference degrades performance on both the downlink and uplink

Method used

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  • Recovery mechanism for rohc with lost initialization and refresh messages
  • Recovery mechanism for rohc with lost initialization and refresh messages
  • Recovery mechanism for rohc with lost initialization and refresh messages

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Embodiment Construction

[0018] The description set forth below in conjunction with the accompanying drawings is a description of various configurations and is not intended to limit the scope of the present disclosure. Rather, the description includes specific details to provide a thorough understanding of the inventive subject matter. It will be apparent to one of ordinary skill in the art that these specific details may not be required in every instance, and in some instances, well-known structures and components are shown in block diagram form for clarity of presentation.

[0019] The techniques described herein may be used in various wireless communication networks, such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA, and others. The terms "network" and "system" are often used interchangeably. CDMA networks can implement such as Universal Terrestrial Radio Access (UTRA), Telecommunications Industry Association (TIA) CDMA and other radio technologies. UTRA technologies include Wideband-CDMA (WCDMA) and ot...

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Abstract

A recovery mechanism for robust header compression (ROHC) is disclosed for wireless communication systems. The ROHC recovery mechanism may allow a receiver and / or transmitter in the wireless systems to establish or reestablish a context of a packet transmission session when an initialization and refresh message is lost. In the ROHC recovery mechanism, upon receiving a compressed packet that is notassociated with a context, a receiver sends a message to a transmitter suggesting the transmitter to transition to another mode. Upon receiving a subsequent packet transmission that is not associatedwith a context, the receiver sends another message indicating that a context has not been established or has been lost. The transmitter may then send the receiver necessary information to establish acontext for the packet transmission session.

Description

[0001] Cross References to Related Applications [0002] This patent application claims U.S. Provisional Application No. 62 / 197,245, filed July 27, 2015, entitled "Recovery Mechanism for ROHC with Lost Initialization and Refresh Messages"; and filed July 21, 2016, entitled " RECOVERY MECHANISM FOR ROHC WITH LOSTINITIALIZATION AND REFRESH MESSAGES," which is expressly incorporated herein by reference in its entirety. technical field [0003] In general, aspects of the present disclosure relate to wireless communication systems, and in particular, to recovery mechanisms for robust header compression (ROHC) when initialization and refresh messages are lost. Background technique [0004] Wireless communication networks are widely deployed to provide various communication services such as voice, video, packet data, messaging, broadcast, and so on. These wireless networks may be multiple-access networks capable of supporting multiple users by sharing available network resources. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/06H04L29/06
CPCH03M13/6306H03M7/3079H03M7/6047H04L69/04H04W28/06H04L69/22H03M13/09H03M13/6312H04L1/1685H04L1/1854H04L5/0055
Inventor D·F·布雷萨内利S·巴斯瓦尔D·沙赫
Owner QUALCOMM INC