Communication using dynamic spectrum access based on channel selection

Patent metadata

Field	Value
Publication number	US-2026012969-A1
Application number	US-202519330776-A
Country	US
Kind code	A1
Filing date	Sep 16, 2025
Priority date	May 15, 2020
Publication date	Jan 8, 2026
Grant date	—

Abstract

The disclosure described herein configures a client device for communication using dynamic spectrum access within a frequency spectrum, such as television white space (TVWS), using a determined location of the client device based on location information, such as from a global positioning system. A dynamic spectrum access database of channels is accessed based on the location information. Available channels are determined for the client device from the channels based on the location information. A list of the available channels for use by the client device are transmitted to the client device, thereby allowing narrowband communication over the channels.

First claim

1 . (canceled)

2 . A network system comprising:
a dynamic spectrum access database: and a gateway comprising a base station, the gateway configured to access the dynamic spectrum access database, wherein a mobile device is configured to communicate with the base station, and wherein the mobile device is configured to: send geographic location information of the mobile device to the gateway: receive a list of available dynamic spectrum access channels: receive an assignment of one or more active channels of the list of available dynamic spectrum access channels: initiate communication by sending an uplink message to the base station via a present channel on the list of available dynamic spectrum access channels: based on missing a downlink reply, re-send the uplink message: based on missing a pre-determined number of downlink replies, mark the present channel as noisy: and hop across channels of the list of available dynamic spectrum access channels while transmitting data.

3 . The network system of claim 2 , wherein the list of available dynamic spectrum access channels is determined based on the geographic location information of the mobile device.

4 . The network system of claim 2 , wherein the mobile device comprises a global positioning system (GPS) device that provides the geographic location information.

5 . The network system of claim 2 , wherein the mobile device is assigned one or more prioritized backup channels, and wherein the one or more prioritized backup channels are used when the one or more active channels are noisy.

6 . The network system of claim 2 , wherein the mobile device comprises one or more multi-narrowband transceivers.

7 . The network system of claim 2 , wherein the mobile device is further configured to receive the list of available dynamic spectrum access channels directly from the gateway.

8 . The network system of claim 2 , wherein the mobile device is further configured to:
based on not receiving a response from the base station for a defined period of time, enters an aggressive mode, the aggressive mode comprising the mobile device entering a beaconing period where the mobile device hops across a preloaded list of beaconing channels.

9 . A computerized method comprising:
sending, by a mobile device, geographic location information of the mobile device to a gateway, the gateway comprising a base station: receiving, by the mobile device, a list of available dynamic spectrum access channels; receiving, by the mobile device, an assignment of one or more active channels of the list of available dynamic spectrum access channels: initiating, by the mobile device, communication by sending an uplink message to the base station via a present channel on the list of available dynamic spectrum access channels: based on missing a downlink reply, re-sending, by the mobile device, the uplink message: based on missing a pre-determined number of downlink replies, marking, by the mobile device, the present channel as noisy: and hopping, by the mobile device, across channels of the list of available dynamic spectrum access channels while transmitting data.

10 . The computerized method of claim 9 , wherein the list of available dynamic spectrum access channels is determined based on the geographic location information of the mobile device.

11 . The computerized method of claim 9 , wherein the mobile device comprises a global positioning system (GPS) device that provides the geographic location information.

12 . The computerized method of claim 9 , wherein the mobile device is assigned one or more prioritized backup channels, and wherein the one or more prioritized backup channels are used when the one or more active channels are noisy.

13 . The computerized method of claim 9 , wherein the mobile device comprises one or more multi-narrowband transceivers.

14 . The computerized method of claim 9 , further comprising:
receiving, by the mobile device, the list of available dynamic spectrum access channels directly from the gateway.

15 . The computerized method of claim 9 , further comprising:
based on not receiving a response from the base station for a defined period of time, entering, by the mobile device, an aggressive mode, the aggressive mode comprising the mobile device entering a beaconing period where the mobile device hops across a preloaded list of beaconing channels.

16 . A network system comprising:
a dynamic spectrum access database; and a gateway comprising a base station, the gateway configured to access the dynamic spectrum access database, wherein a new client device is configured to communicate with the base station, and wherein the new client device is configured to: synchronize a time using a global positioning system (GPS) time information: obtain a geographic location of the new client device: enter a beaconing period, the beaconing period comprising hopping across channels of a preloaded list of beaconing channels; listen on the channels of the preloaded list of beaconing channels; receive a beacon signal, the beacon signal comprising a region information, available dynamic spectrum access channels, and slot availability in each of the available dynamic spectrum access channels; determines, from the beacon signal, a region associated the new client device and a plurality of available channels of the available dynamic spectrum access channels, the plurality of available channels associated with the region: select a current channel from the plurality of available channels based on the geographic location of the new client device; and transmits in an available slot of the current channel.

17 . The network system of claim 16 , wherein the new client device performs carrier access detection (CAD) before transmitting.

18 . The network system of claim 16 , wherein the new client device is an internet-of-things (IoT) device.

19 . The network system of claim 16 , wherein the new client device waits upon receiving slot-unavailable notification from a base station.

20 . The network system of claim 16 , wherein the available dynamic spectrum access channels comprise television white space (TVWS) channels.

21 . The network system of claim 16 , wherein the available slot is a buffer slot reserved for configuring the new client device.

Assignees

• Microsoft Technology Licensing Llc

Inventors

• Chakraborty Tusher
• Vasisht Deepak
• Chandra Ranveer
• Kapetanovic Zerina
• Shi Heping
• Priyantha Nissanka Arachchige Bodhi

Classifications

• H04W64/00

  Locating users or terminals {or network equipment} for network management purposes, e.g. mobility management · CPC title

• H04W72/0453

  Resources in frequency domain, e.g. a carrier in FDMA · CPC title

• H04W88/16

  Gateway arrangements · CPC title

• G01S19/13

  Receivers · CPC title

• H04W4/70

  Services for machine-to-machine communication [M2M] or machine type communication [MTC] · CPC title