Operation of wireless local area network in the presence of periodic interference
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorLeif Wilhelmsson
Life of this patent
Estimating the term…
Abstract
A wireless access point device that schedules packet transmission and reception by devices (access point and stations) in a wireless local area network detects the presence of periodic transmissions on a first carrier frequency, wherein one or more of the detected periodic transmissions will interfere with reception of a packet by at least one of the devices. A different one of the devices is identified such that the detected periodic transmissions will not interfere with reception of a packet by the different one of the devices. Packet transmission and reception are scheduled within the wireless local area network such that said different one of the devices is scheduled to receive a packet during an occurrence of the detected periodic transmissions.
Claims18
A method of operating a wireless access point device that schedules packet transmission and reception by a set of devices in a wireless local area network, wherein the set of devices includes the access point device and two or more other devices, the method comprising:
- the wireless access point device performing:
- detecting the presence of periodic transmissions on an interfering portion of a frequency band from a first transmitter, wherein one or more future occurrences of the periodic transmissions will interfere with reception of a packet by a first device of the set of devices in the wireless local area network;
- identifying a second device of the set of devices in the wireless local area network such that the one or more future occurrences of the periodic transmissions will not interfere with reception of a packet on the interfering portion of the frequency band by the second device;
- and
- scheduling packet transmission and reception within the wireless local area network such that the second device is scheduled to receive a packet on the interfering portion of the frequency band during an occurrence of the one or more future occurrences of the periodic transmissions,
- wherein:
- the first transmitter is a transmitter operating in a cellular communication system;
- and
- the periodic transmissions on the interfering portion of the frequency band are time division duplex transmissions of the first transmitter.
An apparatus for operating a wireless access point device that schedules packet transmission and reception by a set of devices in a wireless local area network, wherein the set of devices includes the access point device and two or more other devices, the apparatus comprising:
- circuitry configured to detect the presence of periodic transmissions on an interfering portion of a frequency band from a first transmitter, wherein one or more future occurrences of the periodic transmissions will interfere with reception of a packet by a first device of the set of devices in the wireless local area network;
- circuitry configured to identify a second device of the set of devices in the wireless local area network such that the one or more future occurrences of the periodic transmissions will not interfere with reception of a packet on the interfering portion of the frequency band by the second device;
- and
- circuitry configured to schedule packet transmission and reception within the wireless local area network such that the second device is scheduled to receive a packet on the interfering portion of the frequency band during an occurrence of the one or more future occurrences of the periodic transmissions,
- wherein:
- the first transmitter is a transmitter operating in a cellular communication system;
- and
- the periodic transmissions on the interfering portion of the frequency band are time division duplex transmissions of the first transmitter.
Dependencies are inferred from the claim text.