Cellular communication system, apparatus and method for handover
First Claim
1. A method for handover of a wireless subscriber communication unit from a first base station to a second base station in a synchronous network, the method comprising at the wireless subscriber communication unit:
- receiving a handover command message from the first base station, the handover being from the first base station to the second base station in the synchronous network;
receiving uplink scheduling resource (UL-SCH) information using a control channel for communicating with the second base station;
transmitting a handover confirmation message to the second base station on the at least one uplink scheduling resource (UL-SCH) and concurrently transmitting a channel quality information (CQI) report to the second base station on the at least one uplink scheduling resource (UL-SCH); and
transmitting uplink data to the second base station in a cell supported by the second base station.
1 Assignment
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Accused Products
Abstract
A method for handover of a wireless subscriber communication unit from a first base station to a second base station in a wireless network is described. The method comprises at the wireless subscriber communication unit receiving a handover command message from the first base station. At the first base station, the method comprises sending a scheduling request message to the second base station, in response to an acknowledgement message sent from the wireless subscriber communication unit. The method further comprises, at the second base station, scheduling, in response to the scheduling request message, at least one uplink scheduling resource (UL-SCH) for the wireless subscriber communication unit to transmit a handover (HO) confirmation message to the second base station; and receiving a handover confirmation message from the wireless subscriber communication unit on the at least one uplink scheduling resource (UL-SCH).
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Citations
19 Claims
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1. A method for handover of a wireless subscriber communication unit from a first base station to a second base station in a synchronous network, the method comprising at the wireless subscriber communication unit:
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receiving a handover command message from the first base station, the handover being from the first base station to the second base station in the synchronous network; receiving uplink scheduling resource (UL-SCH) information using a control channel for communicating with the second base station; transmitting a handover confirmation message to the second base station on the at least one uplink scheduling resource (UL-SCH) and concurrently transmitting a channel quality information (CQI) report to the second base station on the at least one uplink scheduling resource (UL-SCH); and transmitting uplink data to the second base station in a cell supported by the second base station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A wireless subscriber communication unit capable of handover from a first base station to a second base station in a synchronous network, the wireless subscriber communication unit comprising:
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a receiver configured to receive a handover command message from the first base station, the handover being from the first base station to the second base station in the synchronous network; a schedule receiver configured to receive uplink scheduling resource (UL-SCH) information using a control channel for communicating with the second base station; a handover transmitter configured to transmit a handover confirmation message to the second base station on the at least one uplink scheduling resource (UL-SCH) and to concurrently transmit a channel quality information (CQI) report to the second base station on the at least one uplink scheduling resource (UL-SCH); and an uplink transmitter configured to transmit uplink data to the second base station in a cell supported by the second base station. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A non-transitory computer readable medium encoded with a computer program for handover of a wireless subscriber communication unit from a first base station to a second base station in a synchronous network, the program, when loaded on a processor, causes the processor to execute a method comprising:
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receiving a handover command message from the first base station, the handover being from the first base station to the second base station in the synchronous network; receiving at least one uplink scheduling resource (UL-SCH) information using a control channel for communicating with the second base station; transmitting a handover confirmation message to the second base station on the at least one uplink scheduling resource (UL-SCH) and concurrently transmitting a channel quality information (CQI) report to the second base station on the at least one uplink scheduling resource (UL-SCH); and transmitting uplink data to the second base station in a cell supported by the second base station.
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19. A cellular communication system comprising a base station capable of handover of a wireless subscriber communication unit to a second base station in a synchronous network, the wireless subscriber communication unit comprising:
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a handover command receiver configured to receive a handover command message from the first base station, the handover being from the first base station to the second base station in the synchronous network; an uplink receiver configured to receive uplink scheduling resource (UL-SCH) information using a control channel for communicating with the second base station; a handover confirmation transmitter configured to transmit a handover confirmation message to the second base station on the at least one uplink scheduling resource (UL-SCH) and to concurrently transmit a channel quality information (CQI) report to the second base station on the at least one uplink scheduling resource (UL-SCH); and an uplink transmitter configured to transmit uplink data to the second base station in a cell supported by the second base station.
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Specification