Method of wireless local area network and Bluetooth network coexistence in a collocated device
First Claim
1. A collocated wireless local area network/Bluetooth (WLAN/BT) device, comprising:
- a WLAN system including a coexistence master;
a BT system including a timing block, which signals a state of the BT system;
a BT radio shut-down signal output from the coexistence master to the BT system;
a timing signal output from the BT system to the coexistence master of the WLAN system, the timing signal indicating a state corresponding to either transmission or reception by the BT system; and
an algorithm residing in the coexistence master, the algorithm providing time division multiplexing of BT and WLAN signals to avoid radio interference.
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Abstract
A collated wireless local area network/Bluetooth (WLAN/BT) device avoids radio interference between the two wireless systems by collaborative coexistence mechanisms. The collocated WLAN/BT device and coexistence methods include time division multiplexing based on various operating states of the collocated WLAN and BT systems, respectively. Such operating states include the transmission of low priority WLAN and BT data signals during WLAN and BT periods, the sleep mode of the collocated WLAN system, transmission of high priority data signals from the collocated BT system during time division multiplexed WLAN and BT periods, the transition of the collocated BT system from an active state to an idle state, and the transition of the collocated WLAN system from an active state to an idle state.
128 Citations
18 Claims
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1. A collocated wireless local area network/Bluetooth (WLAN/BT) device, comprising:
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a WLAN system including a coexistence master;
a BT system including a timing block, which signals a state of the BT system;
a BT radio shut-down signal output from the coexistence master to the BT system;
a timing signal output from the BT system to the coexistence master of the WLAN system, the timing signal indicating a state corresponding to either transmission or reception by the BT system; and
an algorithm residing in the coexistence master, the algorithm providing time division multiplexing of BT and WLAN signals to avoid radio interference. - View Dependent Claims (2)
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3. A method of wireless local area network/Bluetooth (WLAN/BT) coexistence for a collocated WLAN/BT device, the method comprising:
time division multiplexing of WLAN and BT transmissions from a collocated WLAN system and a collocated BT system, respectively, the time division multiplexing including a WLAN period and a BT period, wherein during the WLAN period, transmission and reception of frames from an access point to the collocated WLAN system and from the collocated WLAN system to the access point are allowed, while transmissions by the collocated BT system are not allowed, and during the BT period, transmission and reception of packets by the collocated BT system are allowed, while the collocated WLAN system acknowledges receipt of frames from the access point. - View Dependent Claims (4, 5, 6)
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7. A method of wireless local area network/Bluetooth (WLAN/BT) coexistence for a collocated WLAN/BT device, the method comprising:
time division multiplexing of WLAN and BT transmissions from a collocated WLAN system and a collocated BT system, respectively, the time division multiplexing including a WLAN period and a BT period, wherein the WLAN period corresponds to a sleep state and the collocated BT system transmits during the WLAN period corresponding to a sleep state. - View Dependent Claims (8, 9)
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10. A method of wireless local area network/Bluetooth (WLAN/BT) coexistence for a collocated WLAN/BT device, the method comprising:
time division multiplexing of WLAN and BT transmissions from a collocated WLAN system and a collocated BT system, respectively, the time division multiplexing including a WLAN period and a BT period, wherein during the WLAN period, a high priority data signal from the collocated BT system causes transmission of the collocated WLAN system to be disabled and transmission/reception of the collocated BT system to be enabled. - View Dependent Claims (11)
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12. A method of wireless local area network/Bluetooth (WLAN/BT) coexistence for a collocated WLAN/BT device, the method comprising:
time division multiplexing of WLAN and BT transmissions from a collocated WLAN system and a collocated BT system, respectively, the time division multiplexing including a WLAN period and a BT period, wherein during the WLAN period, a high priority data signal from the collocated BT system causes the collocated WLAN system to enter a power-save mode and transmission/reception of the collocated BT system to be enabled. - View Dependent Claims (13, 14)
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15. A method of wireless local area network/Bluetooth (WLAN/BT) coexistence for a collocated WLAN/BT device, the method comprising:
time division multiplexing of WLAN and BT transmissions from a collocated WLAN system and a collocated BT system, respectively, the time division multiplexing including a WLAN period and a BT period, wherein during a BT period, the collocated BT system is idle and the collocated WLAN system transmits. - View Dependent Claims (16)
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17. A method of wireless local area network/Bluetooth (WLAN/BT) coexistence for a collocated WLAN/BT device, the method comprising:
time division multiplexing of WLAN and BT transmissions from a collocated WLAN system and a collocated BT system, respectively, the time division multiplexing including a WLAN period and a BT period, wherein during a WLAN period, the collocated WLAN is idle and the collocated BT system transmits. - View Dependent Claims (18)
Specification