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Recovery mechanism for rohc with lost initialization and refresh messages

A mechanism, technology for negative acknowledgment messages, applied in the field of recovery mechanisms for robust header compression, which can solve problems such as downlink performance degradation

Active Publication Date: 2021-02-02
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) for wireless communication systems is disclosed. The ROHC recovery mechanism may allow receivers and / or transmitters in a wireless system to establish or re-establish the context of a packet transfer session when initialization and refresh messages are lost. In the ROHC recovery mechanism, upon receiving a compressed packet that is not associated with a context, the receiver sends a message to the transmitter suggesting that the transmitter switch to another mode. Upon receiving a subsequent packet transmission not associated with a context, the receiver sends another message indicating that the context has not been established or has been lost. The transmitter can then send the necessary information to the receiver to establish the context of the packet transfer 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 Patents(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