Wireless communications methods and devices

• US 10,404,307 B2
• Filed: 06/05/2015
• Issued: 09/03/2019
• Est. Priority Date: 07/31/2014
• Status: Active Grant

• Current Assignee: Beijing Zhigu RUI TUO Tech Company Limited
• Original Assignee: Beijing Zhigu RUI TUO Tech Company Limited
• Inventors: Huang, Weicai
• Primary Examiner(s): Chen, Zhitong
• Application Number:
  US15/500,043
• Publication Number:
  US 20170264330A1
• Time in Patent Office: 1,551 Days
• CPC Class Codes: H04B 1/3838 Arrangements for reducing RF exposure to the user, e.g. by changing the shape of the transceiver while in use
• CPC Class Codes: H04B 17/309 Measuring or estimating channel quality parameters
• CPC Class Codes: H04B 17/336 Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
• CPC Class Codes: H04B 17/373 Predicting channel quality or other radio frequency [RF] parameters

Abstract

Wireless communications methods and devices that relate to the field of communications. A method comprises: receiving a first wireless signal of a target device in a direction of arrival; acquiring a historical path quality of a transmission path corresponding to the direction of arrival; and in response to that the historical path quality is lower than a first threshold, prohibiting sending a second wireless signal in a reverse direction of the direction of arrival. The method gradually disables transmission paths having lower historical path qualities, and reserves transmission paths having higher historical path qualities, thereby being conducive to reducing radiation to personnel and/or reducing power consumption.

Claims

1. A method, comprising:

receiving, by a system comprising a processor, a first wireless signal of a target device in a direction of arrival associated with a transmission path of available transmission paths in an environment;

acquiring a historical path quality of the transmission path corresponding to the direction of arrival;

in response to determining that the historical path quality is lower than a threshold selected to reduce radiation exposure to personnel in the environment, prohibiting sending of a second wireless signal in a reverse direction of the direction of arrival; and

based on the prohibiting, allowing the available transmission paths to converge to a subset of the available transmission paths that reduce the radiation exposure to the personnel in the environment.

2. The method of claim 1, wherein the historical path quality of the transmission path is based upon a number of interruptions in the transmission path in a period time and a number of times a signal intensity of the transmission path is lower than a signal intensity threshold.

3. The method of claim 1, wherein the historical path quality of the transmission path comprises at least one of:

a signal to noise ratio, a transmission rate, an interference probability, a signal intensity, or a power density of the transmission path.

4. The method of claim 1, further comprising:

predetermining the historical path quality of the transmission path corresponding to the direction of arrival.

5. The method of claim 4, wherein the predetermining the historical path quality of the transmission path corresponding to the direction of arrival comprises:

determining the historical path quality of the transmission path corresponding to the direction of arrival according to a feedback signal of the target device received in the direction of arrival.

6. The method of claim 1, further comprising:

sending the second wireless signal in another direction other than the reverse direction of the direction of arrival.

7. The method of claim 1, wherein the second wireless signal is used to charge the target device.

8. A device, comprising:

a memory that stores executable modules; and

a processor, coupled to the memory, that executes or facilitates execution of the executable modules, comprising;

a receiving module configured to receive a first wireless signal of a target device in a direction of arrival associated with a transmission path of available transmission paths in an environment;

an acquiring module configured to acquire a historical path quality of the transmission path corresponding to the direction of arrival; and

a prohibiting module configured to;

in response to a determination that the historical path quality is lower than a threshold selected to reduce radiation exposure to personnel in the environment, prohibit sending a second wireless signal in a reverse direction reverse from the direction of arrival, and

based on the prohibiting, allow the available transmission paths to converge to a subset of the available transmission paths that reduce the radiation exposure to the personnel in the environment.

9. The device of claim 8, wherein the executable modules further comprise:

a predetermining module configured to predetermine the historical path quality of the transmission path corresponding to the direction of arrival.

10. The device of claim 9, wherein the predetermining module is configured to determine the historical path quality of the transmission path corresponding to the direction of arrival according to a feedback signal of the target device being received in the direction of arrival.

11. The device of claim 8, wherein the executable modules further comprise:

a sending module configured to send the second wireless signal in a direction other than the reverse direction of the direction of arrival.

12. The device of claim 8, wherein the device is an antenna device.

13. A non-transitory computer readable medium, comprising at least one executable instruction, which, in response to execution, causes a device comprising a processor to perform operations, comprising:

receiving a first wireless signal of a target device according to a direction of arrival associated with a transmission path of available transmission paths in an environment;

acquiring a historical path quality of the transmission path corresponding to the direction of arrival;

in response to determining that the historical path quality is lower than a threshold selected to reduce radiation exposure to personnel in the environment, prohibiting sending a second wireless signal in a reverse direction opposite the direction of arrival; and

based on the prohibiting, allowing the available transmission paths to converge to a subset of the available transmission paths that reduce the radiation exposure to the personnel in the environment.

14. The non-transitory computer readable medium of claim 13, wherein the historical path quality of the transmission path is related to a number of interruptions or an interruption time of the transmission path.

15. The non-transitory computer readable medium of claim 13, wherein the historical path quality of the transmission path comprises at least one of:

a signal to noise ratio, a transmission rate, an interference probability, a signal intensity, or a power density of the transmission path.

16. The non-transitory computer readable medium of claim 13, the operations further comprising:

predetermining the historical path quality of the transmission path corresponding to the direction of arrival.

17. The non-transitory computer readable medium of claim 16, wherein the predetermining the historical path quality of the transmission path corresponding to the direction of arrival comprises:

determining the historical path quality of the transmission path corresponding to the direction of arrival according to a feedback signal of the target device received in the direction of arrival.

18. The non-transitory computer readable medium of claim 13, the operations further comprising:

sending the second wireless signal in another direction other than the reverse direction of the direction of arrival.

19. The non-transitory computer readable medium of claim 13, wherein the second wireless signal is used to charge the target device.

20. A device, characterized by comprising a processor and a memory, the memory storing executable instructions, the processor being connected to the memory via a communication bus, and when the device operates, the processor executes the computer executable instructions stored in the memory, so that the device performs operations, comprising:

receiving a first wireless signal of a target device in a direction of arrival associated with a transmission path of available transmission paths in an environment;

acquiring a historical path quality of the transmission path corresponding to the direction of arrival;

in response to the historical path quality being determined to be lower than a threshold selected to reduce radiation exposure to personnel in the environment, prohibiting sending a second wireless signal in a reverse direction of the direction of arrival; and

based on the prohibiting, allowing the available transmission paths to converge to a subset of the available transmission paths that reduce the radiation exposure to the personnel in the environment.