Handover method, and a cellular radio system
First Claim
1. A handover method in a cellular radio system including a subscriber terminal and a plurality of base stations, the method comprising:
- maintaining and continuously updating, by the subscriber terminal, an active set of the base stations, at least one of the base stations belonging to the active set having a respective connection to the subscriber terminal; and
deciding, by the subscriber terminal, to switch on or off a respective downlink transmission of the at least one base station of the active set.
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Accused Products
Abstract
A cellular radio system and a handover method in a cellular radio system is provided. The cellular radio system includes a subscriber terminal and a base station. In the system, the subscriber terminal maintains and continuously updates an active set of base stations. One or several base stations belonging to the active set has a connection or connection set-up facilities to the subscriber terminal. The subscriber terminal controls the downlink transmission of one or several base stations of the active set by switching the transmission of the base station on or off. This method provides a fast soft handover similar to a hard handover.
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Citations
37 Claims
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1. A handover method in a cellular radio system including a subscriber terminal and a plurality of base stations, the method comprising:
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maintaining and continuously updating, by the subscriber terminal, an active set of the base stations, at least one of the base stations belonging to the active set having a respective connection to the subscriber terminal; and
deciding, by the subscriber terminal, to switch on or off a respective downlink transmission of the at least one base station of the active set. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 26, 27, 28, 29, 30, 31)
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12. A cellular radio system comprising:
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a subscriber terminal; and
a plurality of base stations, the subscriber terminal maintaining and continuously updating an active set of the base stations, at least one of the base stations belonging to the active set and having a connection to the subscriber terminal, wherein the subscriber terminal comprises;
means for deciding to switch on or off a downlink transmission of at least one base station of the active set. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 32, 33, 34, 35, 36, 37)
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22. A subscriber terminal for a cellular radio system, wherein the subscriber terminal comprises:
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means for maintaining and continually updating an active set of base stations; and
means for deciding to switch on or off a respective downlink of at least one of the base stations of the active set. - View Dependent Claims (23, 24, 25)
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Specification