General Motors LLC and Nissan North America Inc. (collectively “Petitioner”) filed a Petition requesting inter partes review of claims 7 and 11 of U.S. Patent No. 10,447,450 B2 (Ex. 1001, “the ’450 Patent”).
According to the ’450 Patent, the MAP scheduling method defined by the IEEE 802.16 standard involves significant control overhead, amounting altogether to 52 bits, representing as much as 32.5% of overall data communication for application such as voice-over-IP (VoIP) and resulting in a relatively low spectral efficiency.
Claim 7 is representative and is reproduced below: A mobile device in a wireless packet system using a frame structure of multiple frames for transmission, each frame comprising a plurality of time intervals, each time interval comprising a plurality of orthogonal frequency division multiplexing (OFDM) symbols, and each OFDM symbol containing a plurality of frequency subcarriers, the mobile device configured to: receive an identifier from a base station in a cell in which the mobile device is operating; and receive a signal containing information from the base station over a segment of time-frequency resource, the segment having a starting time-frequency coordinate and the segment comprising N time-frequency resource units within a time interval, each unit containing a set of frequency subcarriers in a group of OFDM symbols, where N=2, 4, or 8; and
Patent 10,447,450 B2 “To join a party to an instituted [inter partes review (IPR)], the plain language of § 315(c) requires two different decisions.” Facebook, Inc. v. Windy City Innovations, LLC, 973 F.3d 1321, 1332 (Fed. Cir. 2020).
5 General Motors LLC and Nissan North America, Inc. were joined as a petitioner to this proceeding based on a petition and motion for joinder filed in IPR2023-00962, which were granted.