METHOD AND SYSTEM FOR UPLINK INTERFERENCE MANAGEMENT IN HETEROGENEOUS CELLULAR NETWORKS
First Claim
1. A method, at a first network access device of a heterogeneous network, the method comprising:
- sending a report to a second network access device indicating a user equipment (UE) in the vicinity of the second network access device to be handled in the uplink by the second network access device;
receiving an uplink timing control report from the second network access device;
transmitting uplink timing control adjustments to the UE;
allocating uplink resources for the second network access device to forward uplink information;
allocating physical downlink control channel (‘
PDCCH’
) resources belonging to the first network access device for transmitting uplink scheduling information provided by the second network access device to the UE;
receiving uplink information including uplink scheduling information from the second network access device at the first network access device; and
sending the uplink scheduling information to the UE such that uplink interference is reduced.
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Accused Products
Abstract
A method, at a first network access device of a heterogeneous network, the method sending a report to a second network access device indicating a user equipment (UE) in the vicinity of the second network access device to be handled in the uplink by the second network access device; receiving an uplink timing control report from the second network access device; transmitting uplink timing control adjustments to the UE; allocating uplink resources for the second network access device to forward uplink information; allocating physical downlink control channel (‘PDCCH’) resources belonging to the first network access device for transmitting uplink scheduling information provided by the second network access device to the UE; receiving uplink information including uplink scheduling information from the second network access device at the first network access device; and sending the uplink scheduling information to the UE.
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Citations
21 Claims
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1. A method, at a first network access device of a heterogeneous network, the method comprising:
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sending a report to a second network access device indicating a user equipment (UE) in the vicinity of the second network access device to be handled in the uplink by the second network access device; receiving an uplink timing control report from the second network access device; transmitting uplink timing control adjustments to the UE; allocating uplink resources for the second network access device to forward uplink information; allocating physical downlink control channel (‘
PDCCH’
) resources belonging to the first network access device for transmitting uplink scheduling information provided by the second network access device to the UE;receiving uplink information including uplink scheduling information from the second network access device at the first network access device; and sending the uplink scheduling information to the UE such that uplink interference is reduced. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method, at a first network access device operating in a heterogeneous network, the method comprising:
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receiving a report from a second network access device indicating a user equipment (‘
UE’
) in the vicinity of the first network access device to be handled in the uplink by the first network access device;sending an uplink timing control report from the first network access device to the second network access device; receiving an allocation of uplink resources for the first network access device to forward uplink information; receiving an allocation of physical downlink control channel (‘
PDCCH’
) resources belonging to the second network access device to transmit uplink scheduling information provided by the first network access device;performing uplink scheduling for the UE; sending uplink information from the first network access device to the second network access device; and waiting for uplink communication for the UE, wherein uplink interference is reduced. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A first network access device, comprising a processor, wherein the processor is configured to:
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send a report to a second network access device indicating a user equipment (UE) in the vicinity of the second network access device to be handled in the uplink by the second network access device; receive an uplink timing control report from the second network access device; transmit uplink timing control adjustments to the UE; allocate uplink resources for the second network access device to forward uplink information; allocate physical downlink control channel (‘
PDCCH’
) resources belonging to the first network access device for transmitting uplink scheduling information provided by the second network access device to the UE;receive uplink information including uplink scheduling information from the second network access device at the first network access device; and send the uplink scheduling information to the UE such that uplink interference is reduced.
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Specification