Channel probing signal for a broadband communication system

  • US 10,833,908 B2
  • Filed: 06/16/2020
  • Issued: 11/10/2020
  • Est. Priority Date: 01/29/2004
  • Status: Active Grant
First Claim
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1. A mobile station comprising:

  • a transmitter configured to;

    transmit, to a base station, a first uplink signal within a frequency band, wherein the first uplink signal is an orthogonal frequency division multiplexing (OFDM) signal and utilizes a frame format comprising a plurality of timeslots, each timeslot comprising a plurality of OFDM symbols;

    transmit, to the base station, a random access signal followed by a guard period in only a portion of the frequency band, wherein the random access signal includes a sequence associated with the base station, wherein a time duration of a combination of the random access signal and the guard period is greater than a time duration of at least one of the plurality of OFDM symbols; and

    a receiver configured to receive, from the base station, a response message.

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