CN1759575B

5G,4G

Title

VARIABLE PACKET LENGTHS FOR HIGH PACKET DATA RATE COMMUNICATIONS

Application Number:

CN20048006541

Publication Date:

06-04-2011

Current Assignee:

QUALCOMM INC

Family ID:

32850232

Application Date:

18-02-2004

Publication Country:

US

View on Espacenet

Priority Date:

18-02-2003

Declaring Company:

QUALCOMM INC

Abstract  Abstract

method and device for variable length physical layer (PL) packet generated. multiple security layer (SL) packets may be multiplexed into a single PL packet to increase efficiency wherein the SL packets may have changeable length. in one embodiment a SL packets of different formats of different users are combined into the container the container forming PL packet. shorter packets are used the poorer channel condition of the user or the application and associated quality of service (QoS) requirement and needs less quantity data of the user. In one embodiment the header structure of the modified prescribed unicast or multi-user packet. Optionally embodiment provides modified rate set for identification from a single user packet or a multi-user packet (ACK) delay ACK mechanism. switching keying for ACK channel with bipolar keying in IS-856 and/or an explanation of the DRC value.

Method and apparatus for variable length Physical Layer (PL) packet generation. Multiple Security Layer (SL) packets may be multiplexed into a single PL packet to increase efficiency wherein the SL packets may have variable lengths. In one embodiment different format SL packets for different users are combined into capsules that form the PL packet. Shorter packets are for users in poor channel conditions or requiring smaller amounts of data due to the applications and the accompanying Quality of Service (QoS) requirements. In one embodiment a modified Preamble structure provides for Unicast or multi-user packets. Alternate embodiment provides modified Rate Sets a mechanism for identifying ACK from a single-user packet or a multiplexed packet (delayed ACK). ON/OFF keying for ACK channel v/s bi-polar keying used in IS-856 and/or multi-valued interpretation of DRC.

Note:

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