NETWORK DISCOVERY
First Claim
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1. A method for network discovery in a wireless communication network comprising communication devices sending announcement signals regularly with a period being equal to or exceeding a predefined minimum announcement interval, wherein a first communication devicea) communicates with a second communication device during a data exchange phase on a first channel;
- b) freezes the communication with the second device by signalling a freezing message terminating the data exchange phase;
c) scans for the announcement signal of third communication devices on a second channel in a scan phase, wherein the scan phase duration is shorter than the minimum announcement interval;
d) unfreezes the communication with the second communication device by signalling an unfreezing message; and
e) repeats steps a) through d).
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Abstract
The invention relates to a method for network discovery in a wireless communication network comprising communication devices sending announcement signals regularly with a period being equal to or exceeding a predefined minimum announcement interval, wherein a first communication device
- a) communicates with a second communication device during a data exchange phase on a first channel;
- b) freezes the communication with the second device by signalling a freezing message terminating the data exchange phase;
- c) scans for the announcement signal of third communication devices on a second channel in a scan phase, wherein the scan phase duration is shorter than the minimum announcement interval;
- d) unfreezes the communication with the second communication device by signalling an unfreezing message; and
- e) repeats steps a) through d).
44 Citations
18 Claims
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1. A method for network discovery in a wireless communication network comprising communication devices sending announcement signals regularly with a period being equal to or exceeding a predefined minimum announcement interval, wherein a first communication device
a) communicates with a second communication device during a data exchange phase on a first channel; -
b) freezes the communication with the second device by signalling a freezing message terminating the data exchange phase; c) scans for the announcement signal of third communication devices on a second channel in a scan phase, wherein the scan phase duration is shorter than the minimum announcement interval; d) unfreezes the communication with the second communication device by signalling an unfreezing message; and e) repeats steps a) through d). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A communication device capable of network discovery in a wireless communication network comprising devices which send announcement signals regularly with a period being equal to or exceeding a predefined minimum announcement interval, said communication device comprising:
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a) a transmitting and a receiving unit adapted to communicate with a second communication device during a data exchange phase on a first channel; b) a control unit adapted to freeze and unfreeze the communication with the second device by signaling a freezing message terminating the data exchange phase; wherein the receiving unit is configured to scan for the announcement signal of third communication devices on a second channel in scan phases, wherein the scan phase duration is shorter than the minimum announcement interval.
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Specification