Reducing the effects of interference experienced by a communication device
First Claim
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1. A method for receiving control signaling from a first cell operating on a first carrier when configured with at least the first carrier and a second carrier, the method comprising:
- operating on a first bandwidth that includes the first carrier and the second carrier;
receiving scheduling information associated with a periodicity and a gap duration;
identifying a paging occasion where the first bandwidth may be reduced to a second bandwidth;
reducing bandwidth, based on the identified paging occasion, for the identified gap duration in each period of the periodicity, to a second bandwidth, the second bandwidth including the first carrier;
increasing bandwidth, after the identified gap duration, to the first bandwidth; and
first bandwidth, wherein each time instant of the second sequence follows areceiving control signaling from the first cell in frames occurring during the gap duration.
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Abstract
Disclosed are methods for allowing a wireless communication device (or “user equipment” or “UE”) to receive signaling information when there is a power imbalance between a primary cell (“Pcell”) and a New Carrier Type (“NCT”) secondary cell (“Scell”). In one aspect, the UE reduces its downlink bandwidth to cover only a carrier of the Pcell, receives control signaling information, if present, and then increases its bandwidth to cover carriers of both the Pcell and Scell.
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Citations
12 Claims
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1. A method for receiving control signaling from a first cell operating on a first carrier when configured with at least the first carrier and a second carrier, the method comprising:
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operating on a first bandwidth that includes the first carrier and the second carrier; receiving scheduling information associated with a periodicity and a gap duration; identifying a paging occasion where the first bandwidth may be reduced to a second bandwidth; reducing bandwidth, based on the identified paging occasion, for the identified gap duration in each period of the periodicity, to a second bandwidth, the second bandwidth including the first carrier; increasing bandwidth, after the identified gap duration, to the first bandwidth; and
first bandwidth, wherein each time instant of the second sequence follows areceiving control signaling from the first cell in frames occurring during the gap duration. - View Dependent Claims (2, 3, 4)
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5. A method in a UE, the method comprising:
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identifying a paging occasion where a first bandwidth may be reduced to a second bandwidth; receiving scheduling information associated with a periodicity and gap duration of a transition from a first set of subframes to a second set of subframes; receiving the first set of subframes and the second set of subframes, wherein; (i) a transition from the first set of subframes to the second set of subrames occurs at the periodicity of transition from the first set of subframes to the second set of subframes; (ii) the first sets of subframes are received over a first bandwidth that includes both a Pcell and an Scell and the second set of subframes are received over a second bandwidth that includes only the Pcell; and (iii) reducing a bandwidth, based on the paging occasion for the gap duration in each period of the periodicity, from the first bandwidth to the second bandwidth at the transitions between the first set of subframes and the second set of subframes wherein further, neither the first carrier nor the second carrier is received over a third sest of subframes; estimating CQI/PMI/RI for the Pcell to generate a first CQI/PMI/RI metric, wherein the CQI/PMI/RI is determined based on a first interference estimate for the first set of subframes; estimating CQI/PMI/RI for the Pcell to generate a second CQI/PMI/RI metric, wherein the CQI/PMI/RI is determined based on a second interference estimate for the second set of subframes; and transmitting the first CQI/PMI/RI metric and the second CQI/PMI/RI metric. - View Dependent Claims (6)
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7. A method in a UE, the method comprising:
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identifying a paging occasion where a first bandwidth may be reduced to a second bandwidth; receiving scheduling information associated with a periodicity and gap duration of a transition from a first set of subframes to a second set of subframes; operating over the first bandwidth to receive a first Pcell carrier and a second Scell carrier in the first set of subframes; reducing bandwidth, based on the paging occasion for the gap duration in each period of the periodicity, to operate over the second bandwidth to receive only the first Pcell carrier in the second set of subframes for the identified gap duration; and performing a first set measurements only while operating over the second bandwidth in the second set of subframes. - View Dependent Claims (8, 9, 10)
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11. A method in a base station to enable a mobile station to receiving control signaling, the method comprising:
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configuring the mobile station to operate on a first carrier and a second carrier; indicating to the mobile station scheduling information associated with a periodicity and a gap duration where the mobile station may reduce bandwidth for the indicated gap duration in each period of the indicated periodicity; transmitting control signaling, on the first carrier, in frames occurring during the gap duration; and transmitting signals at a reduced power, on the second carrier, during the gap duration. - View Dependent Claims (12)
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Specification