Adjacent channel interference mitigation for low-power wake-up radio

Patent metadata

Field	Value
Publication number	US-2016183187-A1
Application number	US-201414579716-A
Country	US
Kind code	A1
Filing date	Dec 22, 2014
Priority date	Dec 22, 2014
Publication date	Jun 23, 2016
Grant date	—

Abstract

This disclosure describes systems, methods, and computer-readable media related to adjacent channel interference mitigation. A first computing device may detect a first wireless channel allocated for transmission of one or more data packets from the first computing device to a second computing device. The first computing device made detect a second wireless channel. The first computing device may determine a workload level of the second wireless channel. The first computing device may send a wake-up data packet to the second computing device based at least in part on the workload level.

First claim

What is claimed is:

1 . A method of wireless communication comprising:
determining, by a first computing device comprising one or more processors and at least one radio component, a transmission status of a first wireless channel allocated for sending of one or more data packets from the first computing device to a second computing device; detecting, by the first computing device, a second wireless channel; detecting, by the first computing device, a workload level of the second wireless channel associated with an interference with the first wireless channel; and sending, by the first computing device, a wake-up data packet to the second computing device based at least in part on the workload level.

2 . The method of claim 1 , wherein the workload level is an energy level associated with one or more data transmissions on the second channel.

3 . The method of claim 1 , wherein the second wireless channel is adjacent to the first wireless channel.

4 . The method of claim 1 , wherein the interference alters the wake-up packet into a distorted wake-up packet.

5 . The method of claim 1 , wherein sending the wake-up data packet is based at least in part on an idle status of the second wireless channel.

6 . The method of claim 1 , further includes receiving, by the first computing device, a clear to send message from the second computing device in response to sending the wake-up packet.

7 . The method of claim 1 , wherein determining the transmission status includes determining if the first wireless channel is idle.

8 . The method of claim 1 , wherein detecting the workload level further comprises:
detecting a first workload that satisfies an interference threshold; and detecting, after a delay of at least a channel access delay duration, a second workload level that does not satisfy the interference threshold.

9 . The method of claim 8 , wherein the channel access delay duration includes at least one of distributed coordination inter frame space (DIFS), point coordination inter frame space (PIFS), and short inter frame space (SIFS).

10 . A computing device, comprising:
a transceiver configured to transmit and receive wireless signals; an antenna coupled to the transceiver; one or more processors in communication with the transceiver; at least one memory that stores computer-executable instructions; and at least one processor of the one or more processors configured to access the at least one memory, wherein the at least one processor is configured to execute the computer-executable instructions to:
determine a transmission status of a first wireless channel allocated for sending of one or more data packets from the first computing device to a second computing device;
detect a second wireless channel;
detect a workload level of the second wireless channel associated with an interference with the first wireless channel; and
send a wake-up data packet to the second computing device based at least in part on the workload level.

11 . The computing device of claim 10 , wherein the workload level is an energy level associated with one or more data transmissions on the second channel.

12 . The computing device of claim 10 , wherein the interference alters the wake-up packet into a distorted wake-up packet.

13 . The computing device of claim 10 , wherein sending the wake-up data packet is based at least in part on an idle status of the second wireless channel.

14 . The computing device of claim 10 , further includes receiving, by the first computing device, a clear to send message from the second computing device in response to sending the wake-up packet.

15 . The computing device of claim 10 , wherein determining the transmission status includes determining if the first wireless channel is idle.

16 . The computing device of claim 10 , wherein detecting the workload level further comprises:
detecting a first workload that satisfies an interference threshold; and detecting, after a delay of at least a channel access delay duration, a second workload level that does not satisfy the interference threshold

17 . A non-transitory computer-readable medium storing computer-executable instructions which, when executed by a processor, cause the processor to perform operations comprising:
determining a transmission status of a first wireless channel allocated for sending of one or more data packets from the first computing device to a second computing device; detecting a second wireless channel; detect a workload level of the second wireless channel associated with an interference with the first wireless channel; and sending a wake-up data packet to the second computing device based at least in part on the workload level.

18 . The non-transitory computer-readable medium of claim 17 , wherein the interference alters the wake-up packet into a distorted wake-up packet.

19 . The non-transitory computer-readable medium of claim 17 , wherein sending the wake-up data packet is based at least in part on an idle status of the second wireless channel.

20 . The non-transitory computer-readable medium of claim 17 , wherein detecting the workload level further comprises:
detecting a first workload that satisfies an interference threshold; and detecting, after a delay of at least a channel access delay duration, a second workload level that does not satisfy the interference threshold.

21 . The non-transitory computer-readable medium of claim 20 , wherein the channel access delay duration includes at least one of distributed coordination inter frame space (DIFS), point coordination inter frame space (PIFS), and short inter frame space (SIFS).

Assignees

• Intel Corp

Inventors

• Park Minyoung

Classifications

• H04W52/0225 Primary

  using monitoring of external events, e.g. the presence of a signal · CPC title

• H04W72/082

  Electricity · mapped topic

• Y02D30/70

  in wireless communication networks · CPC title

• H04W52/0238

  where the received signal is an unwanted signal, e.g. interference or idle signal · CPC title

• H04W52/0229 Primary

  where the received signal is a wanted signal · CPC title