REDUCING THE EFFECTS OF INTERFERENCE EXPERIENCED BY A COMMUNICATION DEVICE
First Claim
Patent Images
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;
reducing bandwidth, at each of a first sequence of time instants, to a second bandwidth, the second bandwidth including the first carrier, wherein the time instants of the first sequence have a fixed periodicity;
increasing bandwidth, at each of a second sequence of time instants, to the first bandwidth, wherein each time instant of the second sequence follows a corresponding time instant of the first sequence; and
receiving control signaling from the first cell in frames occurring between at least one time instant of the first sequence and a corresponding time instant of the second sequence.
2 Assignments
0 Petitions
Accused Products
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.
-
Citations
18 Claims
-
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; reducing bandwidth, at each of a first sequence of time instants, to a second bandwidth, the second bandwidth including the first carrier, wherein the time instants of the first sequence have a fixed periodicity; increasing bandwidth, at each of a second sequence of time instants, to the first bandwidth, wherein each time instant of the second sequence follows a corresponding time instant of the first sequence; and receiving control signaling from the first cell in frames occurring between at least one time instant of the first sequence and a corresponding time instant of the second sequence. - View Dependent Claims (2, 3, 4)
-
-
5. 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; reducing bandwidth, at each of a first sequence of time instants, to a second bandwidth, the second bandwidth including the first carrier, wherein the time instants of the first sequence have a fixed periodicity; increasing bandwidth, at each of a second sequence of time instants, to the first bandwidth, wherein each time instant of the second sequence follows a corresponding time instant of the first sequence; and receiving control signaling from the first cell in frames occurring between at least one time instant of the first sequence and a corresponding time instant of the second sequence. - View Dependent Claims (6, 7, 8)
-
-
9. A method in a UE, the method comprising:
-
receiving a DL signal that includes a first set of subframes and a second set of subframes, wherein; (i) the transition from the first set of subframes to the second set of subframes occurs with a certain periodicity; (ii) the first set of subframes are received over a first bandwidth to include both Pcell and Scell and the second set of subframes are received over a second bandwidth to include only the Pcell; (iii) the UE re-tunes between the first bandwidth and 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 set of subframes; and (iv) the first set, the second set, and the third set of subframes comprise all of the subframes received in the DL signal; estimating CQI/PMI/RI for the Pcell to generate a first CQI/PMI/RI metric, wherein the CQI/PMFRI is determined based on a first interference estimate obtained by processing the DL signal received only within the first set of subframes; and 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 obtained by processing the DL signal received only within the second set of subframes. - View Dependent Claims (10)
-
-
11. A method in a UE, the method comprising:
-
operating over a first bandwidth to receive a first Pcell carrier and a second Scell carrier in a first set of subframes; operating over a second bandwidth to receive only the first Pcell carrier in a second set of subframes; and performing a first set measurements only while operating over the second bandwidth in the second set of subframes. - View Dependent Claims (12, 13, 14)
-
-
15. A method in a UE, the method comprising:
-
receiving an indication signaling Scell DL RBs that have low power; placing a LO frequency based on the received indication to ensure that an image of low-power RBs fall on a first set of RBs on a Pcell; and processing a transmission on the first set of RBs on the Pcell. - View Dependent Claims (16)
-
-
17. A method in a base station to enable a mobile station to receiving control signaling, the method comprising:
-
configuring the mobile station to operate on a first carrier and a second carrier; indicating to the mobile station time periods during which it can receive control signaling from the first carrier; and transmitting signals at a reduced power, on the second carrier, during the indicated time periods. - View Dependent Claims (18)
-
Specification