Delivery of information over a communication channel

A communication channel and channel technology, which is applied in the field of information transmission and can solve the problems of loss and loss of multiple video frames.

Inactive Publication Date: 2007-05-30
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] Another problem is that if data from multiple video frames is contained in a single physical layer packet, the loss of a single physical layer packet can cause the loss of multiple video frames (degradation)
Even for data packets close to the physical layer packet size, the loss of one physical layer packet can result in the loss of multiple video frames

Method used

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  • Delivery of information over a communication channel
  • Delivery of information over a communication channel
  • Delivery of information over a communication channel

Examples

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Embodiment Construction

[0055] The word "exemplary" is used herein to mean "serving as an example, instance or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as a preferred embodiment or as an advantage over other embodiments.

[0056] The word "stream" is used herein to refer to the real-time delivery of essentially continuous multimedia data, such as audio, voice or video information, over dedicated and shared channels in conversational, unicast and broadcast applications. For video, the term "multimedia frame" is used herein to refer to a video frame that can be displayed / rendered on a display device after decoding. Video frames can be further divided into independently decodable units. In video parlance, these independently decodable units are called "slices". In the context of audio and speech, the term "multimedia frame" is used herein to refer to information in a window of time during which speech or audio is compressed for transmission and d...

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Abstract

Methods and apparatus are described for transmitting information units over a plurality of constant bit rate communication channel. The techniques include encoding the information units, thereby creating a plurality of data packets. The encoding is constrained such that the data packet sizes match physical layer packet sizes of the communication channel. The information units may include a variable bit rate data stream, multimedia data, video data, and audio data. The communication channels include CMDA channels, WCDMA, GSM channels, GPRS channels, and EDGE channels.

Description

[0001] Priority claims under 35 U.S.C § 119 [0002] This application claims priority to U.S. Provisional Application No. 60 / 571,673, filed May 13, 2004, entitled "Multimedia Packets Carried by CDMA Physical Layer Products," which is assigned to its assignee, thereby assigning its expressly incorporated herein by reference. [0003] References to Co-Pending Patent Applications [0004] This patent application is related to the following co-pending U.S. patent applications: [0005] An application titled "Method And Apparatus For Allocation of Information To Channels Of ACommunication System" with agency number 030166U2 filed concurrently with the above provisional application, which has been assigned to its assignee, expressly expressly in its entirety incorporated herein by reference; and [0006] An application entitled "Header Compression Of Multimedia Data Transmitted Over A Wireless Communication System" with attorney number 030166U3 filed concurrently with the above pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/28H04Q7/30H04B7/00H04B7/216H04L12/56H04L12/66H04L47/36H04N7/26H04W28/06H04W72/12H04W84/04H04W88/18
CPCH04N7/26079H04N7/26053H04N7/26265H04L29/0653H04N19/00272H04L69/04H04N19/0009H04N21/6181H04N19/00012H04N7/26228H04N21/4788H04L29/06523H04N19/00193H04N21/64707H04N19/00236H04L69/22H04L65/80H04L65/604H04L47/36H04N21/6131H04L29/06H04L29/06136H04N19/00781H04W72/1263H04N21/41407H04N21/2381H04W28/06H04L29/06027H04N19/0006H04W80/00H04N7/50H04N21/44004H04N21/6437H04L29/06496H04N7/26186H04L29/06102H04N7/2601H04L69/161H04W84/04H04W88/181H04W28/065H04L29/0604H04L69/166H04N19/102H04N19/115H04N19/61H04N19/124H04N19/152H04N19/164H04N19/174H04L69/321H04W4/06H04L65/764H04L65/00H04L9/40H04L65/75H04L65/1101H04W72/044H04W88/02
Inventor H·迦鲁德瑞P·萨杰东S·南达S·A·伦比
Owner QUALCOMM INC
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