Method and apparatus for communication

• US 10,673,547 B1
• Filed: 11/12/2018
• Issued: 06/02/2020
• Est. Priority Date: 05/06/2016
• Status: Active Grant

• Current Assignee: NXP USA, Inc. (NXP Semiconductors NV)
• Original Assignee: NXP USA, Inc. (NXP Semiconductors NV)
• Inventors: Chu, Liwen, Wang, Lei, Jiang, Jinjin, Zhang, Hongyuan, Lou, Hui-Ling
• Primary Examiner(s): Kamara, Mohamed A
• Application Number:
  US16/186,793
• Time in Patent Office: 568 Days
• CPC Class Codes: H04B 17/318 Received signal strength
• CPC Class Codes: H04B 17/345 Interference values signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR] H04B17/336
• CPC Class Codes: H04L 1/0025 Transmission of mode-switching indication
• CPC Class Codes: H04L 47/32 by discarding or delaying data units, e.g. packets or frames
• CPC Class Codes: H04L 5/0073 Allocation arrangements that take into account other cell interferences for intercell interference mitigation or co-ordination in orthogonal multiplex systems H04J11/005
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 16/02 Resource partitioning among network components, e.g. reuse partitioning
• CPC Class Codes: H04W 16/10 Dynamic resource partitioning
• CPC Class Codes: H04W 52/242 taking into account path loss
• CPC Class Codes: H04W 52/243 taking into account interferences
• CPC Class Codes: H04W 52/247 where the output power of a terminal is based on a path parameter sent by another terminal
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

Aspects of the disclosure provide an apparatus for wireless communication. The apparatus includes a transceiver and a processing circuit. The transceiver is configured to transmit and receive wireless signals. The processing circuit is configured to determine a transmission parameter adjustment for the transceiver, detect that the transmission parameter adjustment has a potential to cause a collision to an overlapping basic service set (OBSS), adjust timings for transmission control to avoid the collision, and control the transceiver based on the determined transmission parameter adjustment and the adjusted timings for transmission control.

Claims

1. An apparatus for wireless communication, comprising:

a transceiver configured to transmit and receive wireless signals; and

a processing circuit configured to;

determine that an energy threshold for determining whether a communication channel is idle is to be lowered to a new threshold value;

in connection with determining that the energy threshold is to be lowered to the new threshold value, determine a time delay period corresponding to a start time for using the new threshold value; and

in connection with determining that the energy threshold is to be lowered to the new threshold value, use the new threshold value to determine whether the communication channel is idle at the start time after the time delay period.

2. The apparatus of claim 1, wherein the processing circuit is further configured to:

use the new threshold value to determine whether the communication channel is idle in connection with a backoff procedure.

3. The apparatus of claim 1, wherein the processing circuit is further configured to:

determine the time delay period based on a transmission time for a data unit.

4. The apparatus of claim 1, wherein the processing circuit is further configured to:

determine the time delay period based on a probe delay corresponding to a probing process for a wireless local area network (WLAN).

5. The apparatus of claim 1, wherein the processing circuit is further configured to:

in connection with determining that the energy threshold is to be raised, use the new threshold value to determine whether the communication channel is idle without waiting until after the time delay period.

6. The apparatus of claim 1, wherein the processing circuit is further configured to determine an increase of a transmission power in response to a decrease of the energy threshold.

7. The apparatus of claim 6, wherein:

the transceiver is configured to receive a trigger signal from an access point, the trigger signal including an indication of a minimum transmission power requirement; and

the processing circuit is further configured to allow the transceiver to transmit when the minimum transmission power requirement is satisfied.

8. The apparatus of claim 1, wherein the processing circuit is further configured to determine an increase of a transmission power based on a previously received data unit from an overlapping basic service set (OBSS).

9. The apparatus of claim 8, wherein:

the transceiver is configured to receive a trigger signal from an access point, the trigger signal being including an indication of a minimum transmission power requirement; and

the processing circuit is further configured to allow the transceiver to transmit when the minimum transmission power requirement is satisfied.

10. A method for wireless communication, the method comprising:

determining, at a wireless communication device, that an energy threshold for the wireless communication device to determine whether a communication channel is idle is to be lowered to a new threshold value;

in connection with determining that the energy threshold is to be lowered to the new threshold value, determining, at the wireless communication device, a time delay period corresponding to a start time for the wireless communication device to use the new threshold value; and

in connection with determining that the energy threshold is to be lowered to the new threshold value, using, at the wireless communication device, the new threshold value to determine whether the communication channel is idle at the start time after the time delay period.

11. The method of claim 10, wherein:

using the new threshold value to determine whether the communication channel is idle comprises using the new threshold value to determine whether the communication channel is idle in connection with a backoff procedure performed by the wireless communication device.

12. The method of claim 10, wherein:

determining the time delay period comprises determining the time delay period based on a transmission time for a data unit.

13. The method of claim 10, wherein:

determining the time delay period comprises determining the time delay period based on a probe delay corresponding to a probing process for a wireless local area network (WLAN).

14. The method of claim 10, further comprising:

in connection with determining that the energy threshold is to be raised, using, at the wireless communication device, the new threshold value to determine whether the communication channel is idle without waiting until after the time delay period.

15. The method of claim 10, further comprising:

determining, at the wireless communication device, an increase of a transmission power of the wireless communication device in response to a decrease of the energy threshold level.

16. The method of claim 15, further comprising:

receiving, at the wireless communication device, a trigger signal from an access point, the trigger signal including an indication of a minimum transmission power requirement; and

transmitting, by the wireless communication device, in response to determining that the minimum transmission power requirement is satisfied.

17. The method of claim 10, further comprising:

determining, at the wireless communication device, an increase of a transmission power based on a previously received data unit from an overlapping basic service set (OBSS).

18. The method of claim 17, further comprising:

receiving, at the wireless communication device, a trigger signal from an access point, the trigger signal being including an indication of a minimum transmission power requirement; and

transmitting, by the wireless communication device, in response to determining that the minimum transmission power requirement is satisfied.