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Layer 2 protocol for the random access channel and the access response channel

  • US 5,610,917 A
  • Filed: 06/07/1995
  • Issued: 03/11/1997
  • Est. Priority Date: 04/19/1993
  • Status: Expired due to Term
First Claim
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1. A method for transmitting messages between mobile stations and a cellular switching system using multiple layer 2 frames, each carried within a channel burst, and providing a message delimiting capability within any specific layer 2 frame, comprising the steps of:

  • dividing said specific frame into a plurality of fields;

    identifying a type of frame in a frame type field;

    placing information from two distinct messages in at least one data field;

    identifying the end of a first message and the beginning of a second message in an end of message field when said first message does not occupy the entire data field; and

    transmitting said frame.

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