US 10,833,908 C1 (12,914th)
Channel probing signal for a broadband communication system
Xiaodong Li, Kirkland, WA (US); Titus Lo, Bellevue, WA (US); Kemin Li, Bellevue, WA (US); and Haiming Huang, Bellevue, WA (US)
Filed by NEO WIRELESS LLC, Wayne, PA (US)
Assigned to Neo Wireless LLC
Reexamination Request No. 90/019,264, Oct. 4, 2023.
Reexamination Certificate for Patent 10,833,908, issued Nov. 10, 2020, Appl. No. 16/902,740, Jun. 16, 2020.
Application 90/019,264 is a continuation of application No. 15/953,950, filed on Apr. 16, 2018, granted, now 10,771,302.
Application 15/953,950 is a continuation of application No. 14/321,615, filed on Jul. 1, 2014, granted, now 9,948,488, issued on Apr. 17, 2018.
Application 14/321,615 is a continuation of application No. 13/861,942, filed on Apr. 12, 2013, granted, now 8,767,522, issued on Jul. 1, 2014.
Application 13/861,942 is a continuation of application No. 13/347,644, filed on Jan. 10, 2012, granted, now 8,428,009, issued on Apr. 23, 2013.
Application 13/347,644 is a continuation of application No. 12/975,226, filed on Dec. 21, 2010, granted, now 8,094,611, issued on Jan. 10, 2012.
Application 12/975,226 is a continuation of application No. 10/583,229, granted, now 7,864,725, issued on Jan. 4, 2011, previously published as PCT/US2005/003518, filed on Jan. 27, 2005.
Claims priority of provisional application 60/540,586, filed on Jan. 30, 2004.
Claims priority of provisional application 60/540,032, filed on Jan. 29, 2004.
Ex Parte Reexamination Certificate issued on May 9, 2025.
Int. Cl. H04L 12/26 (2006.01); H04B 1/707 (2011.01); H04B 1/711 (2011.01); H04L 5/00 (2006.01); H04L 25/03 (2006.01); H04L 27/00 (2006.01); H04L 27/26 (2006.01); H04L 25/02 (2006.01)
CPC H04B 1/707 (2013.01) [H04B 1/711 (2013.01); H04L 5/0007 (2013.01); H04L 5/0028 (2013.01); H04L 25/03834 (2013.01); H04L 27/0008 (2013.01); H04L 27/0012 (2013.01); H04L 27/2602 (2013.01); H04L 27/2626 (2013.01); H04L 27/2647 (2013.01); H04L 5/0016 (2013.01); H04L 25/0228 (2013.01); H04L 27/2607 (2013.01); H04L 27/2655 (2013.01)]
OG exemplary drawing
AS A RESULT OF REEXAMINATION, IT HAS BEEN DETERMINED THAT:
The patentability of claims 1-30 is confirmed.
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.