DEVICE DISCOVERY AND CONNECTION ESTABLISHMENT FOR AD HOC NETWORKS
First Claim
Patent Images
1. A method of forming a piconet in a wireless communications device, the method comprising:
- transmitting a beacon packet from the wireless communications device across a wireless channel during a first predetermined time interval;
scanning the wireless channel from the wireless communications device for a second predetermined time interval, the second predetermined time interval immediately following the first predetermined time interval;
receiving a piconet joining request packet from a remote wireless communications device during the second predetermined time interval; and
transmitting a confirmation packet to the remote wireless communications device during a third predetermined time interval, the third predetermined time interval immediately following the second predetermined time interval and before transmitting a second beacon packet.
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Accused Products
Abstract
A wireless device transmits beacon packets at periodically occurring time intervals across a wireless channel. When the wireless communications device has not formed a piconet with one or more remote devices, the device scans the wireless channel for a predetermined amount of time immediately following each of the periodically occurring time intervals. During this time a remote device may respond to the beacon packet.
48 Citations
20 Claims
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1. A method of forming a piconet in a wireless communications device, the method comprising:
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transmitting a beacon packet from the wireless communications device across a wireless channel during a first predetermined time interval; scanning the wireless channel from the wireless communications device for a second predetermined time interval, the second predetermined time interval immediately following the first predetermined time interval; receiving a piconet joining request packet from a remote wireless communications device during the second predetermined time interval; and transmitting a confirmation packet to the remote wireless communications device during a third predetermined time interval, the third predetermined time interval immediately following the second predetermined time interval and before transmitting a second beacon packet. - View Dependent Claims (2, 3, 4, 5)
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6. A method in a wireless communications device, comprising:
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transmitting a first beacon packet from the wireless communications device across a wireless channel during a first predetermined time interval; scanning the wireless channel from the wireless communications device for a second predetermined time interval, the second predetermined time interval immediately following the first predetermined time interval; receiving a request for additional information from a remote wireless communications device during the second predetermined time interval; and transmitting the additional information with a second beacon packet across the wireless channel. - View Dependent Claims (7, 8, 9, 20)
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10. A wireless communications device, comprising:
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means for transmitting a beacon packet across a wireless channel during a first predetermined time interval; means for scanning the wireless channel for a second predetermined time interval, the second predetermined time interval immediately following the first predetermined time interval; means for receiving a piconet joining request packet from a remote wireless communications device during the second predetermined time interval; and means for transmitting a confirmation packet to the remote wireless communications device during a third predetermined time interval, the third predetermined time interval immediately following the second predetermined time interval and before transmitting a second beacon packet. - View Dependent Claims (18)
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11. A wireless communications device, comprising:
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means for transmitting a first beacon packet across a wireless channel during a first predetermined time interval; means for scanning the wireless channel for a second predetermined time interval, the second predetermined time interval immediately following the first predetermined time interval; means for receiving a request for additional information from a remote wireless communications device during the second predetermined time interval; and means for transmitting the additional information with a second beacon packet across the wireless channel.
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12. A wireless communications device, comprising:
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means for monitoring a wireless channel for transmissions during a predetermined time interval; means for receiving a beacon packet from a remote wireless communications device across the wireless channel during the predetermined time interval; and means for, immediately following receipt of the beacon packet, sending a response packet to the remote wireless communications device without associating with the remote wireless communications device when the remote wireless communications device is the only device transmitting device during the predetermined time interval. - View Dependent Claims (19)
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13. A system for forming a piconet of a plurality of wireless communications devices, the system comprising:
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a beacon-transmitting device that transmits a beacon packet across a wireless channel during a first predetermined time interval; and a remote wireless communication device that receives the beacon packet and transmits a piconet joining request during a second predetermined time interval, the second predetermined time interval immediately following the first predetermined time interval and, wherein the beacon-transmitting device receives the piconet joining request packet during the second predetermined time interval and transmits a confirmation packet to the remote wireless communications device during a third predetermined time interval, the third predetermined time interval immediately following the second predetermined time interval and before transmitting a second beacon packet. - View Dependent Claims (14, 15, 16, 17)
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Specification