Transmission of multiplex protocol data units in physical layer packets

A protocol data unit, multiplexing technology, applied in the field of communication, can solve the problem of multiplexing protocol data unit loss and other problems
CN101292533AInactive Publication Date: 2008-10-22QUALCOMM INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
QUALCOMM INC
Publication Date
2008-10-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

A transmitter generates MUX-PDUs for video, audio, data, and / or control streams based on a fixed PHY packet size such that all or a substantial percentage of the MUX-PDUs conform to the PHY packet size. The MUX-PDUs have variable sizes and are mapped to PHY packets such that (1) each MUX-PDU that is smaller than the PHY packet size is sent in one PHY packet and (2) each MUX-PDU that is larger than the PHY packet size is sent in a minimum number of PHY packets. Each MUX-PDU is padded with one or more null MUX-PDUs and / or one or more padding bytes, if needed, to obtain the PHY packet size. Each PHY packet is sent in one transmission time interval (TTI) to a receiver. The receiver performs the complementary processing on the received PHY packets to recover the MUX-PDUs. The receiver forwards each valid MUX-PDU and discards any padding.
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Description

technical field

[0001] This disclosure relates generally to communications, and more particularly to techniques for transmitting and receiving Multiplex Protocol Data Units (MUX-PDUs) in wireless communications systems. Background technique

[0002] Wireless communication systems are widely deployed to provide various communication services such as voice, video, packet data, and so on. These systems may be multiple-access systems capable of providing communication for multiple users by sharing available system resources (eg, system bandwidth and / or transmit power). Examples of these multiple-access systems include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, and Orthogonal Frequency Division Multiple Access (OFDMA) systems.

[0003] Video telephony or video calling is a rapidly growing application for many wireless communication systems. Video telephony applications use, for e...

Claims

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