IP Library Granted Patent US 11,095,418
Granted Patent B2
US 11,095,418 · App. 16/934,894 · Granted Aug 17, 2021

Mitigating interference between base stations and microwave backhaul transceivers

Inventors: Gaviphat Lekutai (Kirkland, WA); Brian Allan Olsen (Bellevue, WA); Alan Denis MacDonald (Bellevue, WA)
Assignee: T-Mobile USA, Inc.
H04L5/0073H04W36/0072H04W72/048H04W72/0453H04W72/082
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Quick Facts
Patent No.
US 11,095,418
App. No.
16/934,894
Granted
Aug 17, 2021
Kind
B2
Abstract

Techniques for detecting and/or mitigating interference in a wireless network are discussed herein. An environment may include a base station in communication with one or more user equipment (UE) and one or more microwave backhaul transceivers. In some examples, the base station may and transceivers may communicate using frequencies in the same band (e.g., a millimeter frequency band). A geometry of devices in an environment can be determined. Further, interference can be detected based on a flexible portion of a transmission or a source identifier that can be included in a transmission. In some examples, the microwave backhaul transceivers may communicate via a same or similar millimeter frequency resources. Wireless resource(s) can be selected or otherwise determined for one or more components of the network to mitigate interference in the network.

Claims (71)

1. A system comprising:

one or more processors;

a memory; and

one or more components stored in the memory and executable by the one or more processors to perform operations comprising:

receiving first location information associated with a first location of a backhaul transceiver;

receiving first transmission information associated with the backhaul transceiver, the first transmission information comprising a first transmission direction;

receiving second location information associated with a second location of a base station;

receiving second transmission information associated with the base station, the second transmission information comprising a second transmission direction;

determining a distance between the first location and the second location;

determining that the distance is less than a threshold distance;

determining an angle between the first transmission direction and the second transmission direction;

determining that the angle is less than a threshold angle; and

selecting, based at least in part on the distance being less than the threshold distance and the angle being less than the threshold angle, a wireless channel for at least one of the backhaul transceiver or the base station.

2. The system of claim 1 , wherein:

the backhaul transceiver comprises a microwave backhaul; and

the base station comprises a Fifth Generation (5G) base station.

3. The system of claim 2 , wherein:

the microwave backhaul is associated with a 28 GHz frequency; and

the 5G base station is associated with at least one of Band 257 or Band 261.

4. The system of claim 1 , wherein the threshold angle is based at least in part on the distance.

5. The system of claim 1 , wherein selecting the wireless channel comprises sending an instruction to the base station to establish a Fourth Generation (4G) communication with a user equipment.

6. The system of claim 1 , wherein the base station is a first base station, and wherein selecting the wireless channel comprises sending an instruction to the first base station to hand over a user equipment to a second base station.

7. The system of claim 1 , the operations further comprising:

determining, based at least in part on the angle and the distance, a guard band associated with at least one of the backhaul transceiver or the base station.

8. The system of claim 1 , the operations further comprising:

determining a first angle between the first transmission direction and a line segment defined by the first location and the second location; and

determining a second angle between the second transmission direction and the line segment;

wherein determining the angle between the first transmission direction and the second transmission direction is based at least in part on the first angle and the second angle.

9. A method comprising:

receiving first location information associated with a first location of a backhaul transceiver;

receiving first transmission information associated with the backhaul transceiver, the first transmission information comprising a first transmission direction;

receiving second location information associated with a second location of a base station;

receiving second transmission information associated with the base station, the second transmission information comprising a second transmission direction;

determining a distance between the first location and the second location;

determining that the distance is less than a threshold distance;

determining a transmission angle difference based at least in part on the first transmission direction and the second transmission direction;

determining that the transmission angle difference is less than a threshold angle; and

selecting, based at least in part on the distance being less than the threshold distance and the transmission angle difference being less than the threshold angle, a wireless resource for at least one of the backhaul transceiver or the base station,

wherein the wireless resource comprise at least one of a wireless channel, a transmission power level, a modulation scheme, or a radio access technology.

10. The method of claim 9 , wherein the second transmission direction is associated with a wireless communication between the base station and a user equipment.

11. The method of claim 9 , wherein the wireless resource further comprises an indication of

a serving base station to be associated with the base station.

12. The method of claim 9 , further comprising:

determining a first angle between the first transmission direction and a line segment, the line segment based at least in part on the first location and the second location; and

determining a second angle between the second transmission direction and the line segment.

13. The method of claim 9 , wherein:

the backhaul transceiver comprises a microwave backhaul; and

the base station comprises a Fifth Generation (5G) base station and a Fourth Generation (4G) base station.

14. The method of claim 13 , wherein:

the microwave backhaul is associated with a 28 GHz frequency; and

the 5G base station is associated with at least one of Band 257 or Band 261.

15. One or more non-transitory computer-readable medium storing instructions that, when executed, cause one or more processors to perform operations comprising:

receiving first location information associated with a first location of a backhaul transceiver;

receiving first transmission information associated with the backhaul transceiver, the first transmission information comprising a first transmission direction;

receiving second location information associated with a second location of a base station;

receiving second transmission information associated with the base station, the second transmission information comprising a second transmission direction;

determining a distance between the first location and the second location;

determining that the distance is less than a threshold distance;

determining a transmission angle difference based at least in part on the first transmission direction and the second transmission direction;

determining that the transmission angle difference is less than a threshold angle; and

selecting, based at least in part on the distance being less than the threshold distance and the transmission angle difference being less than the threshold angle, a wireless resource for at least one of the backhaul transceiver or the base station,

wherein the wireless resource comprise at least one of a wireless channel, a transmission power level, a modulation scheme, or a radio access technology.

16. The one or more non-transitory computer-readable medium of claim 15 , wherein the second transmission direction is associated with a wireless communication between the base station and a user equipment.

17. The one or more non-transitory computer-readable medium of claim 15 , wherein the wireless resource comprises an indication of

a serving base station to be associated with the base station.

18. The one or more non-transitory computer-readable medium of claim 15 , further comprising:

determining a first angle between the first transmission direction and a line segment, the line segment based at least in part on the first location and the second location; and

determining a second angle between the second transmission direction and the line segment.

19. The non-transitory computer-readable medium of claim 15 , wherein:

the backhaul transceiver comprises a microwave backhaul; and

the base station comprises a Fifth Generation (5G) base station and a Fourth Generation (4G) base station.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 21, 2020
From: LEKUTAI, GAVIPHAT; OLSEN, BRIAN ALLAN; MACDONALD, ALAN DENIS
To: T-MOBILE USA, INC.
Reel/Frame 053272/0469 →
Continuity (2)
Continuation 16598097 · Oct 10, 2019
Related Publication 20210111854A1 · Apr 15, 2021