Heterogeneous network (HetNet) user equipment (UE) radio resource management (RRM) measurements
First Claim
1. A method for wireless communications at a user equipment (UE), comprising:
- receiving transmissions, at the UE, from a plurality of cells, the transmissions occurring during a plurality of subframes, and the plurality of cells including a serving cell and one or more non-serving cells;
determining a set of subframes, from the plurality of subframes, to include in a radio resource measurement, the set of subframes being based on resource partitioning information (RPI), the RPI being associated with the plurality of cells, the set of subframes including at least one protected subframe associated with the serving cell, the at least one protected subframe being at least one subframe in which the one or more non-serving cells refrain from transmitting during at least a portion of the at least one protected subframe; and
performing the radio resource measurement during the determined set of subframes.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods and apparatus for performing radio resource management (RRM) measurements in a heterogeneous network (HetNet) are provided in an effort to prevent failure of RRM measurement procedures in a dominant interference scenario. Several alternatives are provided for determining particular resources (e.g., subframes) to use for performing the RRM measurements, wherein the particular resources are based on cooperative resource partitioning between cells of the HetNet, wherein the cells may be of different types (e.g., macro, pico, or femto cells). These alternatives include, for example: (1) intra-frequency or intra-RAT (radio access technology) alternatives, which may involve transmitting resource partitioning information (RPI) in or deriving non-serving cell RPI based on the serving cell'"'"'s RPI, as well as (2) inter-frequency or inter-RAT alternatives, where the RRM measurements may be performed during a measurement gap.
193 Citations
92 Claims
-
1. A method for wireless communications at a user equipment (UE), comprising:
-
receiving transmissions, at the UE, from a plurality of cells, the transmissions occurring during a plurality of subframes, and the plurality of cells including a serving cell and one or more non-serving cells; determining a set of subframes, from the plurality of subframes, to include in a radio resource measurement, the set of subframes being based on resource partitioning information (RPI), the RPI being associated with the plurality of cells, the set of subframes including at least one protected subframe associated with the serving cell, the at least one protected subframe being at least one subframe in which the one or more non-serving cells refrain from transmitting during at least a portion of the at least one protected subframe; and performing the radio resource measurement during the determined set of subframes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. An apparatus for wireless communications, comprising:
-
means for receiving transmissions, at a user equipment, from a plurality of cells, the transmissions occurring during a plurality of subframes, and the plurality of cells including a serving cell and one or more non-serving cells; means for determining a set of subframes, from the plurality of subframes, to include in a radio resource measurement, the set of subframes being based on resource partitioning information (RPI), the RPI being associated with the plurality of cells, the set of subframes including at least one protected subframe associated with the serving cell, the at least one protected subframe being at least one subframe in which the one or more non-serving cells refrain from transmitting during at least a portion of the at least one protected subframes; and means for performing the radio resource measurement during the determined set of subframes. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
-
-
37. An apparatus for wireless communications, comprising:
-
a receiver configured to receive transmissions, at a user equipment (UE), from a plurality of cells, the transmissions occurring during a plurality of subframes, and the plurality of cells including a serving cell and one or more non-serving cells; and at least one processor configured to; determine a set of subframes, from the plurality of subframes, to include in a radio resource measurement, the set of subframes being based on resource partitioning information (RPI), the RPI being associated with the plurality of cells, the set of subframes including at least one protected subframe associated with the serving cell, the at least one protected subframe being at least one subframe in which the one or more non-serving cells refrain from transmitting during at least a portion of the at least one protected subframes; and perform the radio resource measurement during the determined set of subframes. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
-
-
55. A computer-program product for wireless communications stored on a non-transitory computer-readable medium, and comprising code for:
-
receiving transmissions, at a user equipment (UE), from a plurality of cells, the transmissions occurring during a plurality of subframes, and the plurality of cells including a serving cell and one or more non-serving cells; determining a set of subframes, from the plurality of subframes, to include in a radio resource measurement, the set of subframes being based on resource partitioning information (RPI), the RPI being associated with the plurality of cells, the set of subframes including at least one protected subframe associated with the serving cell, the at least one protected subframe being at least one subframe in which the one or more non-serving cells refrain from transmitting during at least a portion of the at least one protected subframe; and performing the radio resource measurement during the determined set of subframes. - View Dependent Claims (56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72)
-
-
73. A method for wireless communications, comprising:
-
determining, at a first base station, a measurement gap associated with a second base station for an inter-frequency or an inter-RAT (radio access technology) radio resource measurement; generating, at the first base station, resource partitioning information (RPI) with at least one subframe designated for radio resource measurements of the first base station; and transmitting subframes from the first base station according to the RPI, wherein the at least one subframe designated for radio resource measurements of the first base station falls within the measurement gap associated with the second base station. - View Dependent Claims (74, 75, 76, 77)
-
-
78. An apparatus for wireless communications, comprising:
-
means for determining a measurement gap associated with a base station for an inter-frequency or an inter-RAT (radio access technology) radio resource measurement; means for generating resource partitioning information (RPI) with at least one subframe designated for radio resource measurements of the apparatus; and means for transmitting subframes from the apparatus according to the RPI, wherein the at least one subframe designated for radio resource measurements of the apparatus falls within the measurement gap associated with the base station. - View Dependent Claims (79, 80, 81, 82)
-
-
83. An apparatus for wireless communications, comprising:
-
at least one processor configured to; determine a measurement gap associated with a base station for an inter-frequency or an inter-RAT (radio access technology) radio resource measurement; and generate resource partitioning information (RPI) with at least one subframe designated for radio resource measurements of the apparatus; and a transmitter configured to transmit subframes from the apparatus according to the RPI, wherein the at least one subframe designated for radio resource measurements of the apparatus falls within the measurement gap associated with the base station. - View Dependent Claims (84, 85, 86, 87)
-
-
88. A computer-program product for wireless communications, the computer-program product comprising:
-
a non-transitory computer-readable medium having code for; determining, at a first base station, a measurement gap associated with a second base station for an inter-frequency or an inter-RAT (radio access technology) radio resource measurement; generating, at the first base station, resource partitioning information (RPI) with at least one subframe designated for radio resource measurements of the first base station; and transmitting subframes from the first base station according to the RPI, wherein the at least one subframe designated for radio resource measurements of the first base station falls within the measurement gap associated with the second base station. - View Dependent Claims (89, 90, 91, 92)
-
Specification