Method and system for paging mobile devices
First Claim
1. A paging method in a wireless communication system, wherein a wireless communication device (WCD) listens in a sequence of time slots for paging messages, wherein sequential time slots of the sequence are separated from one another by a first time interval, and in which a radio access network (RAN) normally (1) transmits, in a time slot of the sequence, a paging message of a series of paging messages to the WCD, (2) waits a second time interval, (3) transmits a next paging message of the series in a next time slot of the sequence, and (4) discontinues the series upon receipt of a paging response from the WCD, the method comprising:
- after transmitting a given paging message of the series, the RAN detecting that the WCD has changed from operating on a first carrier frequency to operating on a second carrier frequency; and
responsive to the detecting, the RAN transmitting a subsequent paging message to the WCD on the second carrier frequency in the next time slot of the sequence without waiting for expiration of the second time interval;
wherein transmitting the subsequent paging message to the WCD on the second carrier frequency comprises restarting the series and thus transmitting a starting paging message of the series on the second carrier frequency.
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Accused Products
Abstract
Methods and systems for improving the paging of wireless communication devices (WCDs) are introduced. A radio access network (RAN) begins transmitting a series of paging messages to a WCD, and determines that the WCD is operating on a new carrier frequency. The RAN proactively continues the series of paging messages on the new carrier frequency, without waiting for the prescribed interval between paging messages to expire. Alternatively, the RAN proactively restarts the series of paging messages on the new carrier frequency, without waiting for the prescribed interval between paging messages to expire. Both of these embodiments serve to reduce the delay involved in paging WCDs. The RAN may condition its behavior based on the WCD'"'"'s profile.
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Citations
16 Claims
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1. A paging method in a wireless communication system, wherein a wireless communication device (WCD) listens in a sequence of time slots for paging messages, wherein sequential time slots of the sequence are separated from one another by a first time interval, and in which a radio access network (RAN) normally (1) transmits, in a time slot of the sequence, a paging message of a series of paging messages to the WCD, (2) waits a second time interval, (3) transmits a next paging message of the series in a next time slot of the sequence, and (4) discontinues the series upon receipt of a paging response from the WCD, the method comprising:
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after transmitting a given paging message of the series, the RAN detecting that the WCD has changed from operating on a first carrier frequency to operating on a second carrier frequency; and responsive to the detecting, the RAN transmitting a subsequent paging message to the WCD on the second carrier frequency in the next time slot of the sequence without waiting for expiration of the second time interval; wherein transmitting the subsequent paging message to the WCD on the second carrier frequency comprises restarting the series and thus transmitting a starting paging message of the series on the second carrier frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless communication system for support of paging comprising:
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a wireless communication device (WCD) that listens in a sequence of time slots for paging messages, wherein sequential time slots of the sequence are separated from one another by a first time interval; and a radio access network (RAN) that normally (1) transmits a paging message of a series of paging messages to the WCD, (2) waits a second time interval, (3) transmits a next paging message of the series in a next time slot of the sequence, and (4) discontinues the series upon receipt of a paging response from the WCD, wherein, after transmitting a given paging message of the series, the RAN detects that the WCD has changed from operating on a first carrier frequency to operating on a second carrier frequency, and wherein responsive to the detecting, the RAN transmitting a subsequent paging message to the WCD on the second carrier frequency in the next time slot of the sequence without waiting for expiration of the second time interval;
wherein transmitting the subsequent paging message to the WCD on the second carrier frequency comprises restarting the series and thus transmitting a starting paging message of the series on the second carrier frequency. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification