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Access protocol for a common channel wireless network

  • US 5,461,627 A
  • Filed: 12/24/1991
  • Issued: 10/24/1995
  • Est. Priority Date: 12/24/1991
  • Status: Expired due to Fees
First Claim
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1. An access method and protocol for a common channel wireless local area network, said access method comprising the steps of:

  • providing an access method utilizing a physical medium for the transmission of messages wherein all messages are accomplished by coding and content of a digital bit stream;

    providing a fixed network infrastructure including a plurality of access points comprising antennae and radio, said access points including alternately used transmit and receive functions, and further including a hub controller connected to and sequentially controlling the transmit function in said access points by multiple electrical conductors bearing a baseband replica of the messages received and transmitted by the access points;

    providing either or both fast-packet data and connection-type services from said access points to a plurality of stations to be served by wireless access;

    transmitting sequential, asynchronously initiated messages that are not delayed from said access points which include either complete message sequences to said stations or invitation-to-transmit messages to enable initiation of transmission of messages from said stations when said infrastructure is available for message transfer;

    receiving a request-to-use message from one or more requesting station in the plurality of said stations to any of said access points, said request-to-use message containing necessary information on the message transfer required by the requesting station;

    transmitting a grant-to-use message conditioned upon resource availability from a preferred receiving access point from among the plurality of said access points to said requesting station; and

    receiving a limited length digital information packet transmitted from said requesting station to said preferred receiving access point immediately following receipt of said grant-to-use message.

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