公开(公告)号：WO2022047138A2

公开(公告)日：2022-03-03

申请号：PCT/US2021/047917

申请日：2021-08-27

Applicant: SINCLAIR BROADCAST GROUP, INC.

Inventor： SIMON, Michael J. ,  AITKEN, Mark A. ,  KOFI, Ebenezer K. ,  LIBIN, Louise Herbert

IPC: G01S1/04 ,  H04H60/44 ,  H04H60/51 ,  H04N21/258 ,  H04N21/235 ,  G01S1/0428 ,  G01S1/68 ,  G01S5/10 ,  H04L27/2626 ,  H04L5/005 ,  H04N21/2383 ,  H04N21/25841 ,  H04N21/4382 ,  H04W28/06

Abstract: According to some embodiments, a method includes selecting a length for an advanced television system committee (ATSC) 3.0 frame for transmission by a single frequency network (SFN) transmitter and aligning the SFN transmitter with a global positioning system (GPS) epoch. The method further includes storing geographical coordinates of the SFN transmitter and a corresponding SFN transmitter identification (TX ID) in a database. The method also includes encoding the SFN TX ID in a non-coherent symbol of a plurality of positioning navigation timing (PNT) symbols comprising a plurality of coherent symbols and the non-coherent symbol with orthogonal frequency-division multiplexing (OFDM) numerology to support positioning. The method further includes prepending the plurality of PNT symbols to the ATSC 3.0 frame to generate a modified ATSC 3.0 frame and transmitting the modified ATSC 3.0 using a SFN transmitter antenna of the SFN transmitter.

公开(公告)号：WO2020180983A1

公开(公告)日：2020-09-10

申请号：PCT/US2020/020981

申请日：2020-03-04

Applicant: SINCLAIR BROADCAST GROUP, INC.

Inventor： SIMON, Michael J. ,  AITKEN, Mark A. ,  KOFI, Ebenezer K. ,  LIBIN, Louis H.

IPC: H04L12/18 ,  H04W48/18

Abstract: Disclosed herein are methods, an apparatus, and a computer-readable medium product for sharing broadcast resources and validating usage of the broadcast resources according to an agreement between a plurality of broadcast virtual network operators (BVNOs). A method includes determining the plurality of spectrum resources corresponding to a length of a broadcast frame, and creating a plurality of physical layer pipes (PLPs) based on a plurality of internet protocol (IP) flows from the plurality of BVNOs. The method includes constructing the broadcast frame including the plurality of PLPs and generating a broadcast frame record based on transmission of the broadcast frame. The broadcast frame record can identify the plurality of spectrum resources shared between the plurality of BVNOs. The method includes updating the broadcast frame record with identification information of the plurality of BVNOs and the plurality of IP flows corresponding to the plurality of PLPs of the broadcast frame.