Heterogeneous network (HetNet) user equipment (UE) radio resource management (RRM) measurements

摘要

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.

主权项

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.