公开(公告)号：US12089056B2

公开(公告)日：2024-09-10

申请号：US18457317

申请日：2023-08-28

Applicant: Microsoft Technology Licensing, LLC

Inventor： Heping Shi ,  Ranveer Chandra ,  Tusher Chakraborty ,  Nissanka Arachchige Bodhi Priyantha ,  Zerina Kapetanovic ,  Binh Ngoc Vu

IPC: H04W16/14 ,  H03F3/19 ,  H04W48/16 ,  H04W72/0453 ,  H04W72/541

CPC classification number: H04W16/14 ,  H03F3/19 ,  H04W48/16 ,  H04W72/0453 ,  H04W72/541 ,  H03F2200/294

Abstract: The disclosure described herein configures a multi-narrowband transceiver for communication within the television white space (TVWS) frequency spectrum using a log periodic filter, wherein the log periodic filter comprises a plurality of filter elements each having a filter frequency increasing periodically in a same frequency increasing factor (K). Each filter of the plurality of filter elements is configured to filter out second harmonics in a defined frequency range. The disclosure determines a TVWS channel for the communication and switches to a filter element of the plurality of filter elements corresponding to the determined TVWS channel. Data is transmitted and/or received over the TVWS channel using the filter element, thereby allowing narrowband communication over the TVWS channel.

公开(公告)号：US11778481B2

公开(公告)日：2023-10-03

申请号：US17849562

申请日：2022-06-24

Applicant: Microsoft Technology Licensing, LLC

Inventor： Heping Shi ,  Ranveer Chandra ,  Tusher Chakraborty ,  Nissanka Arachchige Bodhi Priyantha ,  Zerina Kapetanovic ,  Binh Ngoc Vu

IPC: H04W48/18 ,  H04W16/14 ,  H04W48/16 ,  H03F3/19 ,  H04W72/0453 ,  H04W72/541

CPC classification number: H04W16/14 ,  H03F3/19 ,  H04W48/16 ,  H04W72/0453 ,  H04W72/541 ,  H03F2200/294

Abstract: The disclosure described herein configures a multi-narrowband transceiver for communication within the television white space (TVWS) frequency spectrum using a log periodic filter, wherein the log periodic filter comprises a plurality of filter elements each having a filter frequency increasing periodically in a same frequency increasing factor (K). Each filter of the plurality of filter elements is configured to filter out second harmonics in a defined frequency range. The disclosure determines a TVWS channel for the communication and switches to a filter element of the plurality of filter elements corresponding to the determined TVWS channel. Data is transmitted and/or received over the TVWS channel using the filter element, thereby allowing narrowband communication over the TVWS channel.

公开(公告)号：US11405792B2

公开(公告)日：2022-08-02

申请号：US17037389

申请日：2020-09-29

Applicant: Microsoft Technology Licensing, LLC

Inventor： Heping Shi ,  Ranveer Chandra ,  Tusher Chakraborty ,  Nissanka Arachchige Bodhi Priyantha ,  Zerina Kapetanovic ,  Binh Ngoc Vu

IPC: H04N5/44 ,  H04W16/14 ,  H04W48/16 ,  H04W72/08 ,  H03F3/19 ,  H04W72/04

Abstract: The disclosure described herein configures a multi-narrowband transceiver for communication within the television white space (TVWS) frequency spectrum using a log periodic filter, wherein the log periodic filter comprises a plurality of filter elements each having a filter frequency increasing periodically in a same frequency increasing factor (K). Each filter of the plurality of filter elements is configured to filter out second harmonics in a defined frequency range. The disclosure determines a TVWS channel for the communication and switches to a filter element of the plurality of filter elements corresponding to the determined TVWS channel. Data is transmitted and/or received over the TVWS channel using the filter element, thereby allowing narrowband communication over the TVWS channel.