Receiving unit for searching for at least one unused transmission channel in a communications device, and a method for use
First Claim
1. Receiving unit for searching for at least one unused transfer channel in a communications device in a network of distributed stations, in particular in a local broadband network or a digital broadband home network, characterized by a switchable filter unit (5), which can be switched between a monitoring mode and a normal mode by means of a switching signal (8), the switchable filter unit (5) having a broadband reception characteristic in the monitoring mode, so that signals from a number of transfer channels are received in parallel, and the switchable filter unit (5) having a narrower bandwidth transfer characteristic than in the monitoring mode when in the normal mode, so that signals of at least one selected transfer channel of the number of transfer channels can be selectively filtered out, the receiving unit further characterized by a digital filter device (7) for subdividing a broadband signal, which has passed through the filter unit (5) in monitoring mode, into a number of parallel component signals, which each has a narrower bandwidth than the broadband signal and each being associated with one of a number of transfer channels;
- the receiving unit being further characterised by an evaluation device (9) for determining at least one signal strength for each of the number of component signals so that it is possible to decide which of the number of transfer channels is or are being used and/or which of the number of transfer channels is or are not being used.
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Accused Products
Abstract
The invention relates to a receiving unit for searching for at least one unused transmission channel in a communications device in a network of distributed stations and/or for monitoring transmission channels such that specific messages can be determined for that communications device, and to a method for its use, in particular in a local broadband network or a digital broadband home network. The receiving unit comprises a filter unit (5), which has a broadband reception characteristic in a monitoring mode, such that signals from a number of transmission channels can be received in parallel; a digital filter device (7) for subdividing a broad filter band, which has passed through the filter unit (5), into a number of component signals which each have a narrower bandwidth than broadband signal and can each be associated with one of the number of transmission channels; and an evaluation device (9) in order to determine at least one signal strength for each of the number of component signals so that it is possible to decide which of the number of transmission channels is or are being used and/or which of the number of transmission channels is or are not being used.
47 Citations
12 Claims
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1. Receiving unit for searching for at least one unused transfer channel in a communications device in a network of distributed stations, in particular in a local broadband network or a digital broadband home network, characterized by a switchable filter unit (5), which can be switched between a monitoring mode and a normal mode by means of a switching signal (8), the switchable filter unit (5) having a broadband reception characteristic in the monitoring mode, so that signals from a number of transfer channels are received in parallel, and the switchable filter unit (5) having a narrower bandwidth transfer characteristic than in the monitoring mode when in the normal mode, so that signals of at least one selected transfer channel of the number of transfer channels can be selectively filtered out, the receiving unit further characterized by a digital filter device (7) for subdividing a broadband signal, which has passed through the filter unit (5) in monitoring mode, into a number of parallel component signals, which each has a narrower bandwidth than the broadband signal and each being associated with one of a number of transfer channels;
- the receiving unit being further characterised by an evaluation device (9) for determining at least one signal strength for each of the number of component signals so that it is possible to decide which of the number of transfer channels is or are being used and/or which of the number of transfer channels is or are not being used.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
Specification