EXPLOITING ALMOST BLANK SUBFRAMES FOR INTER-CELL SCHEDULING
First Claim
1. A method in a cellular radio network, the method comprising, at a first basestation:
- synchronising physical radio resource time-frequency radio resource units for the first basestation and a second, neighbouring basestation;
determining that the first basestation intends to transmit at reduced power for, or not transmit on, one or more given time-frequency radio resource units selected from the set of available time-frequency radio resource units and determining that the second basestation intends to transmit normally on the given time-frequency radio resource unit(s); and
as a result of the determination, lowering a threshold for switching of user equipment (UE) from the first to the second base station, where the UEs are to be allocated to the one or more given time-frequency radio resource units of the second basestation following switching.
1 Assignment
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Accused Products
Abstract
A method in a cellular radio network, the method comprising, at a first basestation, synchronising physical radio resource time-frequency radio resource units for the first basestation and a second, neighbouring basestation, and determining that the first basestation intends to transmit at reduced power for, or not transmit on, one or more given time-frequency radio resource units selected from the set of available time-frequency radio resource units and determining that the second basestation intends to transmit normally on the given time-frequency radio resource unit(s). As a result of the determination, a threshold for switching of user equipment (UE) from the first to the second base station is lowered, where the UEs are to be allocated to the one or more given time-frequency radio resource units of the second basestation following switching.
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Citations
18 Claims
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1. A method in a cellular radio network, the method comprising, at a first basestation:
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synchronising physical radio resource time-frequency radio resource units for the first basestation and a second, neighbouring basestation; determining that the first basestation intends to transmit at reduced power for, or not transmit on, one or more given time-frequency radio resource units selected from the set of available time-frequency radio resource units and determining that the second basestation intends to transmit normally on the given time-frequency radio resource unit(s); and as a result of the determination, lowering a threshold for switching of user equipment (UE) from the first to the second base station, where the UEs are to be allocated to the one or more given time-frequency radio resource units of the second basestation following switching. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An apparatus configured to operate as a first basestation for use in a cellular network, the apparatus comprising:
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a transceiver for communicating with user equipments within a coverage area; a synchronisation unit configured to synchronise the physical radio resource time-frequency radio resource units provided by the first basestation with those provided by a second, neighbouring basestation; an interference coordination unit configured to determine that the first basestation intends to transmit at reduced power for, or not transmit on, one or more given time-frequency radio resource units selected from the set of available time-frequency radio resource units and to determine that the second basestation intends to transmit normally on the given time-frequency radio resource unit(s); and a switching unit configured to, as a result of the determination, lower a threshold for switching of user equipment, UEs, from the first to the second base station where the UEs are to be allocated to the one or more given time-frequency radio resource units of the second basestation following switching. - View Dependent Claims (8, 9, 10)
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11. A method in a cellular radio network, the method comprising:
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synchronising physical radio resource time-frequency radio resource units for first and second neighbouring basestations; at the first basestation, transmitting at reduced power or not transmitting on one or more time-frequency radio resource units selected from a set of available time-frequency radio resource units; at the second basestation, transmitting normally on one or more time-frequency radio resource units selected from a set of available time-frequency radio resource units; lowering a threshold for switching of user equipment, UEs, from the first to the second basestation, where, following switching, the UEs are to be allocated to time-frequency radio resource units on which the first basestation transmits at reduced power or does not transmit, and on which the second basestation transmits normally. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A non-transitory computer readable medium having stored thereon computer readable code which, when run on a first basestation, causes the first basestation to carry out a method comprising:
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synchronising physical radio resource time-frequency radio resource units for the first basestation and a second, neighbouring basestation; determining that the first basestation intends to transmit at reduced power for, or not transmit on, one or more given time-frequency radio resource units selected from the set of available time-frequency radio resource units and determining that the second basestation intends to transmit normally on the given time-frequency radio resource unit(s); and as a result of the determination, lowering a threshold for switching of user equipment (UE) from the first to the second base station, where the UEs are to be allocated to the one or more given time-frequency radio resource units of the second basestation following switching.
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18. (canceled)
Specification