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US 12,701,599 B2Granted
Method for reducing interference between radar and uplink frequency band and communication apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsLiwen Zhang, Liangliang Li, Xu Wang, Zhou Xu
Life of this patent
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Abstract
This application provides a method for reducing interference between a radar and an uplink frequency band. A first network device obtains a characteristic of a radar signal on the uplink frequency band, and determines a corresponding protection measure based on the characteristic of the radar signal, to reduce interference between the radar signal and the uplink frequency band. In this way, when 5G communication collides with the radar in time domain and frequency domain of the uplink frequency band, the 5G communication and the radar can still coexist. This improves utilization of a wireless spectrum.
Claims20
A method for reducing interference between a radar and an uplink frequency band, the method comprising:
- detecting a characteristic of a radar signal transmitted by the radar in the uplink frequency band, the radar signal being received by a first network device of a cellular communication network or a second network device of the cellular communication network, wherein the cellular communication network comprises the first network device, the second network device, and one or more first terminal devices separate from the first network device and the second network device, the second network device is communicatively coupled to the first network device, the radar is separate from the cellular communication network, and detecting the characteristic of the radar signal comprises processing, by the first network device or the second network device, a signal in the uplink frequency band based on a radar signal identification method, the signal comprising the radar signal;
- determining, by the first network device, a protection measure based on the characteristic of the radar signal;
- reducing, by the first network device, interference between the radar signal and the uplink frequency band by using the protection measure;
- and
- communicating, by the first network device, with the one or more first terminal devices of the cellular communication network through the uplink frequency band, wherein communicating with the one or more first terminal devices comprises receiving one or more wireless uplink signals in the uplink frequency band from the one or more first terminal devices.
2 more elements
A communication apparatus comprising:
- a receiver configured to receive a radar signal transmitted by a radar;
- a non-transitory memory storing a program;
- and
- a processor coupled to the non-transitory memory and configured to execute the program to detect a characteristic of the radar signal in an uplink frequency band from the radar signal, wherein the program comprises instructions that when executed by the processor cause the communication apparatus to:
- determine a protection measure based on the characteristic of the radar signal, wherein the communication apparatus is part of a cellular communication network, the cellular communication network comprises the communication apparatus and one or more first terminal devices separate from the communication apparatus, the radar is separate from the cellular communication network, the characteristic of the radar signal is determined by processing a signal in the uplink frequency band based on a radar signal identification method, and the signal comprises the radar signal;
- reduce interference between the radar signal and the uplink frequency band by using the protection measure;
- and
- communicate with the one or more first terminal devices of the cellular communication network through the uplink frequency band, wherein communicating with the one or more first terminal devices comprises receiving one or more wireless uplink signals in the uplink frequency band from the one or more first terminal devices.
5 more elements
A non-transitory computer-readable storage medium storing computer instructions;
- and when the computer instructions are executed on a computer, the computer executes a method for reducing interference between a radar and an uplink frequency band, the method comprising:
- detecting a characteristic of a radar signal transmitted by the radar in the uplink frequency band, the radar signal being received by a first network device of a cellular communication network or a second network device of the cellular communication network, wherein the cellular communication network comprises the first network device, the second network device, and one or more first terminal devices separate from the first network device and the second network device, the second network device is communicatively coupled to the first network device, the radar is separate from the cellular communication network, and detecting the characteristic of the radar signal comprises processing, by the first network device or the second network device, a signal in the uplink frequency band based on a radar signal identification method, the signal comprising the radar signal;
- determining, by the first network device, a protection measure based on the characteristic of the radar signal;
- reducing, by the first network device, interference between the radar signal and the uplink frequency band by using the protection measure;
- and
- communicating, by the first network device, with the one or more first terminal devices of the cellular communication network through the uplink frequency band, wherein communicating with the one or more first terminal devices comprises receiving one or more wireless uplink signals in the uplink frequency band from the one or more first terminal devices.
3 more elements
Dependencies are inferred from the claim text.