# US 2019/0174418 A1 · Implementation of traffic coexistence for collocated transceivers including bluetooth transceivers

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- Number: US 2019/0174418 A1
- Document ID: US20190174418A1
- Status: Published application
- Kind: A1
- Application number: 16/143,778
- Filed: 2018-09-27
- Published: 2019-06-06
- Earliest claimed: 2017-12-04
- Assignees: Cypress Semiconductor Corporation
- Applicants: Cypress Semiconductor Corporation
- Inventors: Raghavendra Kencharla; Rajendra Kumar Gundu Rao; Sri Ramya Thota; Raghunatha Kondareddy
- Web page: https://patentgrep.com/patent/US20190174418A1

## CPC

- H04W 52/0248: {dependent on the time of the day, e.g. according to expected transmission activity}
- H04L 5/0035: {Resource allocation in a cooperative multipoint environment}
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04W 52/0216: {using a pre-established activity schedule, e.g. traffic indication frame}
- H04W 72/1215: {for collaboration of different radio technologies}
- H04W 76/18: Management of setup rejection or failure
- H04W 4/80: Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
- H04W 84/12: WLAN [Wireless Local Area Networks]
- H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals
- Y02D 30/70: in wireless communication networks
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## Abstract

Systems, methods, and devices enable coexistence of traffic for collocated transceivers. Methods may include generating, using a processing device, a target-wake-time (TWT) agreement, the TWT agreement being determined based on availability of a first transceiver and a plurality of wireless devices. The methods may also include generating, using the processing device, a medium access schedule for the first transceiver based on a transmission parameter of a second transceiver, the second transceiver being collocated with the first transceiver and sharing a transmission medium with the first transceiver, and the medium access schedule being a TWT schedule. The methods may further include transmitting the TWT schedule to the plurality of wireless devices, the TWT schedule identifying a plurality of wake times and a plurality of sleep times to the plurality of wireless devices.

## Claims

### Claim 1

A method comprising:
generating, using a processing device, a target-wake-time (TWT) agreement, the TWT agreement being determined based on availability of a first transceiver and a plurality of wireless devices;
generating, using the processing device, a medium access schedule for the first transceiver based on a transmission parameter of a second transceiver, the second transceiver being collocated in the same device as the first transceiver and sharing a transmission medium with the first transceiver, and the medium access schedule being a TWT schedule; and
transmitting the TWT schedule to the plurality of wireless devices, the TWT schedule identifying a plurality of wake times and a plurality of sleep times to the plurality of wireless devices.

### Claim 2 (depends on 1)

The method of claim 1, wherein the first transceiver is a wireless local area network (WLAN) transceiver compatible with a Wi-Fi transmission protocol, and wherein the plurality of wireless devices is compatible with the Wi-Fi transmission protocol.

### Claim 3 (depends on 2)

The method of claim 2, wherein the second transceiver is a Bluetooth transceiver, and wherein the transmission parameter of the second transceiver identifies one or more parameters of a Bluetooth transmission protocol.

### Claim 4 (depends on 3)

The method of claim 3, wherein the TWT schedule is generated based, at least in part, on Bluetooth sync events associated with the second transceiver.

### Claim 5 (depends on 3)

The method of claim 3, wherein the plurality of wake times and a plurality of sleep times are determined based, at least in part, on a duty cycle of the Bluetooth transmission protocol.

### Claim 6 (depends on 1)

The method of claim 1 further comprising:
generating, using the processing device, a first control signal to grant or deny transmission medium access to the first transceiver based, at least in part, on the TWT schedule; and
generating, using the processing device, a second control signal to grant or deny transmission medium access to the second transceiver based, at least in part, on the TWT schedule.

### Claim 7 (depends on 6)

The method of claim 6, wherein the first control signal grants transmission medium access to the first transceiver during a wake time identified by the TWT schedule, and wherein the second control signal grants transmission medium access to the second transceiver during a sleep time identified by the TWT schedule.

### Claim 8 (depends on 1)

The method of claim 1, wherein the first transceiver and the second transceiver operate on the same frequency band, and wherein the TWT schedule is transmitted in a beacon frame.

### Claim 9

A device comprising:
a first transceiver configured to transmit, using an antenna, data packets in accordance with a first transmission protocol;
a second transceiver configured to transmit, using the antenna, data packets in accordance with a second transmission protocol, the second transceiver being collocated with the first transceiver; and
a processing device configured to generate a medium access schedule for the first transceiver based on a transmission parameter of the second transceiver, wherein the medium access schedule is a TWT schedule that identifies a plurality of wake times and a plurality of sleep times that are determined based, at least in part, on the transmission parameter of the second transceiver.

### Claim 10 (depends on 9)

The device of claim 9, wherein the first transceiver is a WLAN transceiver compatible with a Wi-Fi transmission protocol.

### Claim 11 (depends on 10)

The device of claim 10, wherein the second transceiver is a Bluetooth transceiver, wherein the transmission parameter of the second transceiver identifies one or more parameters of a Bluetooth transmission protocol, and wherein the first transceiver and the second transceiver operate on the same frequency band.

### Claim 12 (depends on 11)

The device of claim 11, wherein the TWT schedule is generated based, at least in part, on Bluetooth sync events associated with the second transceiver.

### Claim 13 (depends on 11)

The device of claim 11, wherein the plurality of wake times and a plurality of sleep times are determined based, at least in part, on a duty cycle of the Bluetooth transmission protocol.

### Claim 14 (depends on 10)

The device of claim 10, wherein the processing device comprises a packet traffic arbiter included in the first transceiver.

### Claim 15 (depends on 9)

The device of claim 9, wherein the processing device is further configured to:
generate a first control signal to grant or deny transmission medium access to the first transceiver based, at least in part, on the TWT schedule; and
generate a second control signal to grant or deny transmission medium access to the second transceiver based, at least in part, on the TWT schedule.

### Claim 16 (depends on 9)

The device of claim 9, wherein the processing device is further configured to transmit the TWT schedule to a plurality of client devices, wherein the plurality of client devices is compatible with a Wi-Fi transmission protocol, and wherein the TWT schedule is transmitted in a beacon frame.

### Claim 17

A system comprising:
an antenna configured to transmit wireless communications signals;
a WLAN transceiver compatible with a Wi-Fi transmission protocol;
a Bluetooth transceiver compatible with a Bluetooth transmission protocol and collocated with the WLAN transceiver;
a processing device configured to generate a medium access schedule for the WLAN transceiver based on a transmission parameter of the Bluetooth transceiver, wherein the medium access schedule is a TWT schedule that identifies a plurality of wake times and a plurality of sleep times that are determined based, at least in part, on the transmission parameter of the Bluetooth transceiver;
a first plurality of devices configured to communicate with the WLAN transceiver; and
a second plurality of devices configured to communicate with the Bluetooth transceiver.

### Claim 18 (depends on 17)

The system of claim 17, wherein the processing device is further configured to:
generate a first control signal to grant or deny transmission medium access to the WLAN transceiver based, at least in part, on the TWT schedule; and
generate a second control signal to grant or deny transmission medium access to the Bluetooth transceiver based, at least in part, on the TWT schedule.

### Claim 19 (depends on 17)

The system of claim 17, wherein the TWT schedule is generated based, at least in part, on Bluetooth sync events associated with the Bluetooth transceiver.

### Claim 20 (depends on 17)

The system of claim 17, wherein the WLAN transceiver and the Bluetooth transceiver operate on the same frequency band, wherein the WLAN transceiver and the Bluetooth transceiver use a same antenna, wherein the processing device is further configured to transmit the medium access schedule to the first plurality of devices in a beacon frame, and wherein the processing device is included in an access point.
