Hybrid automatic repeat request operation during soft hand offs in a wireless system
First Claim
1. A method for controlling a communications system, comprising:
- communicating a first packet of information to a first and second base station;
receiving an acknowledgment signal from the first base station and a negative acknowledgment signal from the second base station; and
communicating to at least the second base station that a second packet of information is a new packet of information.
1 Assignment
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Accused Products
Abstract
A method for controlling communications between a mobile device and a pair of base stations during a soft hand off mode of operation in a wireless system using HARQ is provided. In the soft hand off mode of operation, the mobile device communicates with a plurality of base stations and receives a plurality of feedback signals in the form of NACK and ACK signals from each of the plurality of base stations. The mobile device determines the reliability of each of these feedback signals, combines the reliable signals, and retransmits the old information if no ACK signals are received. On the other hand, the receipt of even one reliable ACK signal results in new data being delivered to the plurality of base stations.
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Citations
20 Claims
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1. A method for controlling a communications system, comprising:
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communicating a first packet of information to a first and second base station;
receiving an acknowledgment signal from the first base station and a negative acknowledgment signal from the second base station; and
communicating to at least the second base station that a second packet of information is a new packet of information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for controlling a communications system, comprising:
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communicating a first packet of information to a plurality of base stations;
receiving one of an acknowledgment signal and a negative acknowledgment signal from at least a portion of the plurality of base stations;
communicating a second packet of information to the plurality of base stations containing new information in response to receiving at least one acknowledgment signal from the plurality of base stations; and
communicating to at least a portion of the base stations providing a negative acknowledgment signal that the second packet of information contains new information. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for controlling a communications system, comprising:
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receiving a first packet of information;
sending a negative acknowledgment signal; and
receiving a communication that a second packet of information is a new packet of information.
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Specification