ARQ (automatic repeat request) for broadband fixed wireless...

Details ARQ (automatic repeat request) for broadband fixed wireless... ARQ (automatic repeat request) for broadband fixed wireless...

2006-02-14

2006-02-14

Shah, Kamini (Department: 2142)

Electrical computers and digital processing systems: multicomput

Computer-to-computer protocol implementing

C709S217000, C709S229000, C370S394000, C370S473000

Reexamination Certificate

active

07000021

ABSTRACT:
Systems and methods for retransmitting unsuccessfully transmitted data across a communication link. The retransmission mechanism may be applied to point to multipoint networks including wireless networks. Each packet is encapsulated in an ARQ frame and assigned a sequence number for the purpose of coordinating acknowledgments and retransmissions. Information as to which packets require retransmission is communicated in the form of a bitmap where each bit indicates an acknowledgment status for a given packet. Any missing packets in the received sequence are assumed to require retransmission.

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Data-Over-Cable Service Interface Specifications, Radio Frequency Interface Specification, SP-RFlv1.1-106-001215. Cable Television Laboratories, Inc. (2000).

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