Method for over-the-air synchronization adjustment in a communication system
First Claim
1. A method for synchronizing base stations in a communication system, the communication system including a plurality of base stations configured for radio communication with a mobile station, the method including the steps of:
- synchronizing the mobile station to a reference base station; and
thereafter, synchronizing unsynchronized base stations of the plurality of base stations to the mobile station, thereby establishing synchronization between the unsynchronized base stations and the reference base station.
4 Assignments
0 Petitions
Accused Products
Abstract
A method for synchronizing base stations (104, 106, 108, 110) or radio ports in a communication system (100) such as a cordless or cellular telephone system uses a mobile station (114) or handset for synchronizing unsynchronized base stations. The mobile station (114) is first synchronized to a reference base station. The mobile station (114) then initiates communication with the unsynchronized base station and calculates a synchronization adjustment. The mobile station (114) transmits the synchronization adjustment to the unsynchronized base station which uses the synchronization adjustment to adjust its time base.
139 Citations
13 Claims
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1. A method for synchronizing base stations in a communication system, the communication system including a plurality of base stations configured for radio communication with a mobile station, the method including the steps of:
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synchronizing the mobile station to a reference base station; and thereafter, synchronizing unsynchronized base stations of the plurality of base stations to the mobile station, thereby establishing synchronization between the unsynchronized base stations and the reference base station. - View Dependent Claims (2, 3, 4, 5)
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6. A method for over-the-air synchronization adjustment in a communication system, the communication system including a plurality of base stations and a mobile station, the method comprising the steps of:
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at the mobile station, synchronizing the mobile station to a reference base station; detecting an unsynchronized base station, the unsynchronized base station being different from the reference base station; calculating a synchronization adjustment for the unsynchronized base station; transmitting the synchronization adjustment from the mobile station to the unsynchronized base station; and at the unsynchronized base station, adjusting synchronization of the unsynchronized base station in response to the synchronization adjustment. - View Dependent Claims (7, 8, 9)
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10. A method for synchronizing an unsynchronized base station in a communication system, the communication system including a plurality of base stations configured for radio communication with a mobile station, the plurality of base stations including a reference base station and the unsynchronized base station the unsynchronized base station being different from the reference base station, the method including the steps of:
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at the mobile station, detecting a synchronization transmission from the reference base station; synchronizing a time base of the mobile station in response to the synchronization transmission; detecting a synchronization transmission from the unsynchronized base station; calculating a synchronization adjustment for the unsynchronized base station; transmitting the synchronization adjustment to the unsynchronized base station; and at the unsynchronized base station, adjusting a time base of the unsynchronized base station in response to the synchronization adjustment to synchronize the unsynchronized base station. - View Dependent Claims (11, 12, 13)
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Specification