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 Method for communicating data using a modified SR-ARQ protocol

Details
Inventors: Crisler, Kenneth J.; Needham, Michael L.; Wilson, Timothy J.;
Assignee:
Primary Examiner: Baker; Stephen M.
Assistant Examiner:
Attorney, Agent or Firm: Moreno; Christopher P.

Within a transmitter (101), a quantity of data (201) to be transmitted is parsed into variable length, uniquely identified messages (202), which are in turn parsed into fixed-length, uniquely identified blocks (207-211). Messages are buffered and then transmitted to a receiver (103). Upon reception of a message-received communication by the transmitter (101) corresponding to a particular buffered message, that particular message is unbuffered. Upon reception of a message-partially-received communication by the transmitter (101) corresponding to a particular buffered message, those blocks corresponding to portions of the particular buffered message that were not adequately received (703) are retransmitted.

DETAILED DESCRIPTION We claim: 1.
A method comprising the steps of: A) providing data robe transmitted; B) automatically parsing the data into messages and fixed-length blocks, which messages are comprised of the blocks and which messages are no longer than a predetermined length; C) buffering the messages pending transmission; D) transmitting the messages; E) upon receipt of a message-received communication as corresponds to a particular buffered message, unbuffering the particular buffered message; F) upon receipt of a message-partially-received communication as corresponds to a particular buffered message, retransmitting: i) at least some blocks that correspond to portions of the particular buffered message that were not adequately received; ii) but none of those blocks that correspond to portions of the particular buffered message that were adequately received.
2.
The method of claim 1, wherein step D comprises the step of transmitting the messages via a wireless communication resource.
3.
The method of claim 8, wherein the fixed length blocks are substantially shorter than the predetermined length.
4.
The method of claim 1, wherein the message-partially-received communication includes identification information of the particular buffered message and of the blocks that correspond to the portions of the particular buffered message that were not adequately received, and wherein such identification information is used to identify the blocks to be retransmitted.
5.
The method of claim 1, and further including the steps of: G) upon receipt of a message-received communication as corresponds to particular retransmitted blocks, unbuffering the particular buffered message that includes such particular retransmitted blocks; H) upon receipt of a message-partially-received communication as corresponds to particular retransmitted blocks, retransmitting: i) at least some blocks that were retransmitted but that were not adequately received.
6.
The method of claim 1, wherein step C comprises buffering a predetermined plurality of messages



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