BASE STATION SYNCHRONISATION
First Claim
1. A method for determining data enabling a plurality of base stations to time their transmissions to a mobile station within a timing range, the method comprising the steps of:
- obtaining, in the mobile station, time delays of transmissions from each of the plurality of base stations in reaching the mobile station;
determining, in the mobile station, time delay differences between the time delays and a reference time delay; and
transmitting the time delay differences from the mobile station to the plurality of base stations via at least one link that is specific to the mobile station in order to enable the timing of transmissions by the base stations to be corrected.
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Accused Products
Abstract
A method for determining data enabling a plurality of secondary base stations to time their transmissions to a mobile station within a timing range. The mobile station obtains time delays of transmissions from each of the secondary base stations in reaching the mobile station, and determines time delay differences between the time delays and a reference time delay associated with a primary base station. The mobile station transmits the time delay differences to the plurality of secondary base stations. Each secondary base station receives the difference between its own transmission time delay and the reference time delay, compares the difference with a time range, and corrects the timing of its transmissions if the difference is outside of the time range.
25 Citations
19 Claims
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1. A method for determining data enabling a plurality of base stations to time their transmissions to a mobile station within a timing range, the method comprising the steps of:
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obtaining, in the mobile station, time delays of transmissions from each of the plurality of base stations in reaching the mobile station; determining, in the mobile station, time delay differences between the time delays and a reference time delay; and transmitting the time delay differences from the mobile station to the plurality of base stations via at least one link that is specific to the mobile station in order to enable the timing of transmissions by the base stations to be corrected. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A mobile station for determining data allowing a plurality of base stations to time their transmissions to the mobile station within a timing range, the mobile station comprising:
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at least one radio communication unit for communicating with the plurality of base stations; and a control unit configured to; obtain time delays of transmissions from each of the plurality of base stations in reaching the mobile station; determine time delay differences between the time delays and a reference time delay; and control the radio communication unit to transmit the time delay differences from the mobile station to the plurality of base stations via at least one link that is specific to the mobile station in order to enable the timing of transmissions by the base stations to be corrected.
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9. (canceled)
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10. A method for controlling timing of transmissions to a mobile station from a base station, the method comprising the steps of:
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receiving, in a device for controlling the timing and from the mobile station via at least one link that is specific to the mobile station, a difference between a time delay of the transmissions of the base station to the mobile station and a reference time delay; comparing, in said device, the time delay difference with a time range within which the base station is to time its transmissions to the mobile station; and correcting, by said device, the timing of the base station transmissions to the mobile station if the difference is outside of the time range. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A device for controlling timing of transmissions to a mobile station from a base station, the device comprising:
a control unit configured to; receive, from the mobile station via at least one link that is specific to the mobile station, a difference between a time delay of the transmissions of the base station to the mobile station and a reference time delay; compare the time delay difference with a time range within which the base station is to time its transmissions to the mobile station; and correct the timing of the base station transmissions to the mobile station if the difference is outside of the time range. - View Dependent Claims (17, 19)
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18. (canceled)
Specification