System and method for interrupt-free hand-over in a mobile terminal
First Claim
1. A method for receiving at a mobile terminal a service signal formatted as a series of transmission bursts, the service signal provided by each of a plurality of wireless transmitters, said method comprising the steps of:
- receiving a first service signal broadcast by a first wireless transmitter at a first frequency;
if said first service signal meets a first predefined criterion, deriving signal data from a second service signal broadcast by a second wireless transmitter; and
if said signal data from said second wireless transmitter meets a second predefined criterion, switching reception from said first wireless transmitter to said second wireless transmitter after a first service signal transmission burst has been received.
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Accused Products
Abstract
A system and method are disclosed for providing interrupt-free hand-over in a mobile terminal. First and second service signals broadcast by corresponding wireless transmitters are received and signal data is derived from the service signals. If the signal data from the first wireless transmitter meets a first predefined criterion and if the signal data from the second wireless transmitter meets a second predefined criterion, reception is switched from the first wireless transmitter to the second wireless transmitter after a predefined portion of the service signal has been received.
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Citations
23 Claims
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1. A method for receiving at a mobile terminal a service signal formatted as a series of transmission bursts, the service signal provided by each of a plurality of wireless transmitters, said method comprising the steps of:
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receiving a first service signal broadcast by a first wireless transmitter at a first frequency;
if said first service signal meets a first predefined criterion, deriving signal data from a second service signal broadcast by a second wireless transmitter; and
if said signal data from said second wireless transmitter meets a second predefined criterion, switching reception from said first wireless transmitter to said second wireless transmitter after a first service signal transmission burst has been received. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A mobile terminal suitable for receiving information from a plurality of wireless transmitters, said mobile terminal comprising:
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a digital broadcast receiver for receiving at least a first portion of the information as a first transmission burst, said first transmission burst broadcast by a first wireless transmitter;
a receiver elastic buffer for storing said first transmission burst; and
means for switching reception from the first wireless transmitter to a second wireless transmitter after reception of said first transmission burst has been completed. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A digital broadcasting system comprising:
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a first transmitter for broadcasting at least an interval of information as a transmission burst in synchronization with at least one other transmitter; and
a receiver system for receiving said transmission burst, said receiver including a receiver elastic buffer for buffering said transmission burst, said receiver further including means for executing a hand-over from said first transmitter to said at least one other transmitter upon receipt of said transmission burst if at least one predefined criterion has been met. - View Dependent Claims (17, 18, 19, 20)
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21. A method for receiving a series of service signals provided by each of a plurality of wireless transmitters, said method comprising the steps of:
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receiving service signals broadcast by a plurality of wireless transmitters, each said wireless transmitter broadcasting on a different frequency;
selecting a first wireless transmitter for providing information;
deriving a first bit error rate for information received from said first wireless transmitter;
if said first bit error rate for said first wireless transmitter is greater than a predefined quasi-error-free value, deriving a second bit-error-rate for a second wireless transmitter; and
if said second bit-error rate is less than said quasi-error-free value, selecting said second wireless transmitter for providing reception. - View Dependent Claims (22, 23)
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Specification