Arbitrating colocated transceivers associated with different systems
AssigneeNXP B.V.
InventorOlaf Hirsch
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Abstract
Systems and methods according to the present invention provide arbitration methods, systems and devices which enable a WLAN transceiver (30) and a Bluetooth (BT) transceiver (32) to share the transmission medium. Various arbitration signals (BT, WL, RXIND and PRI) enable the transceivers to indicate a seizure of ownership of the medium as well as to accommodate special arbitration cases, e.g., priority packet transmission/reception. Some arbitration features are hardware programmable to provide design flexibility.
Claims28
A method for arbitrating access to a wireless medium between a first transceiver and a second transceiver comprising the steps of:
- (a) asserting, by said second transceiver a first arbitration signal line when said first transceiver is to be prevented from transmitting;
- (b) asserting, by said first transceiver a second arbitration signal line when said second transceiver is to be prevented from transmitting;
- (c) asserting, by said second transceiver a third arbitration signal line when said second transceiver is to transmit or receive a priority packet;
- and (d) asserting, by said first transceiver a fourth arbitration signal line while said first transceiver evaluates an address associated with an incoming first packet.
A transceiver system comprising:
- a first transceiver for transmitting and receiving first packets;
- a second transceiver for transmitting and receiving second packets;
- and a plurality of arbitration signal lines connecting said first transceiver with said second transceiver said plurality of arbitration signal lines including:
- a first arbitration signal line asserted by said second transceiver when said first transceiver is to be prevented from transmitting;
- a second arbitration signal line asserted by said first transceiver when said second transceiver is to be prevented from transmitting;
- a third arbitration signal line asserted by said second transceiver when said second transceiver is to transmit or receive a priority packet;
- and a fourth arbitration signal line asserted by said first transceiver while said first transceiver evaluates an address associated with an incoming first packet.
Dependencies are inferred from the claim text.