A system and method for enhanced cell detection by a User Equipment (UE) is provided. The UE includes a transceiver configured to receive a discovery reference signal (DRS) occasion from at least one transmission point. The DRS occasion comprising a set of consecutive DRS sub-frames. The UE also includes processing circuitry configured to: in response to detecting a physical cell identity (PCID) of a Primary Synchronization Signal (PSS)/ Secondary Synchronization Signal (SSS)/ Common Reference Signal (CRS) that is the same as a reference PCID for a configured Channel State Information Reference Signal (CSI-RS) resource, the processing circuitry attempts to detect or measure the CSI-RS using the timing obtained from the PSS/SSS/CRS; and in response to not detecting a PCID of PSS/SSS/CRS that is the same as the reference PCID for a configured CSI-RS resource (TP), the processing circuitry does not attempt to detect or measure the CSI-RS.

Methods and apparatus for discovery signals for lte advanced

System and method embodiments are provided for signaling reference signals and Channel State Information (CSI) feedback for wireless communications An embodiment method implemented by a user equipment (UE) for wireless communications measurements and CSI feedback includes receiving, from a network, at least one of a first index that indicates a corresponding non-zero-power CSI reference signal (CSI-RS) resource, a second index that indicates a corresponding zero-power CSI-RS resource, a third index that indicates a corresponding CSI-RS resource for interference measurement, and a fourth index that indicates a corresponding channel quality indicator (CQI) report configuration The method also includes receiving, from the network, at least one of a fifth index that indicates a corresponding periodic CQI report in accordance with the CQI report configuration indicated by the fourth index, and a sixth index that indicates a corresponding aperiodic CQI report in accordance with the CQI report configuration indicated by the fourth index

Systems and methods for reference signals and csi feedback

A terminal which is capable of selecting appropriate transmission points while reducing the overhead for channel state information (CSI) reporting is provided. A measuring unit (303) uses a plurality of reference signals from a plurality of transmission points to measure a first reception quality with respect to each of the plurality of reference signals. A receiving unit (301) receives a first piece of information concerning at least one specific reference signal among the plurality of reference signals, and the measuring unit (303) uses the specific reference signal to measure a second reception quality on the basis of the first piece of information. A transmitting unit (304) reports the first reception quality, which satisfies a predetermined condition, and the second reception quality.

Terminal, transmitting device, reception quality reporting method and reception method

Provided is a user device which carries out communication with a base station in a wireless communication system comprising the base station and the user device, said user device comprising: a first reference signal receiving means for measuring the received power of first reference signals which are transmitted from the base station and are associated with a plurality of different identifiers, and selecting a prescribed first reference signal; a reporting means for reporting the identifier and the received power of the first reference signal which is selected by the first reference signal receiving means to either the base station or a macrocell base station; a second reference signal receiving means for receiving a plurality of second reference signals which are transmitted from the base station; and a measuring means for measuring the reception quality of the second reference signals which are received by the second reference signal receiving means, and transmitting feedback information based on the reception quality to the base station.

User device, base station and communication method

Certain aspects of the present disclosure provide methods and apparatus for performing coordinated multipoint (CoMP) channel state information (CSI) feedback under multiple channel and interference assumptions. One method generally includes receiving signaling indicating at least one or more interference measurement resources (IMRs) from a network and a configuration with one or more non-zero power reference signal (NZP-RS) resources in which one or more base stations transmit a RS, performing separate interference measurements at least on a per-IMR basis in one or more subframes by forming a baseline interference estimate based on the IMR and forming separate interference estimates based on adding interference from selected NZP-RS resources to the baseline interference estimate, and transmitting one or more CSI feedback reports that correspond to the interference measurements.

Method and apparatus for performing coordinated multipoint feedback under multiple channel and interference assumptions

Procedures for point association as well as measurement and feedback required to enable point association for CoMP deployment scenario 4 are proposed. In a first novel aspect, a serving eNB configures a first higher-layer configuration for RSRP measurement to be used by a UE for serving point selection. The higher-layer configuration contains multiple CSI-RS configurations, and each CSI-RS configuration indicates a set of resource elements (REs) or subcarriers in both frequency domain and time domain as one CSI-RS resource with non-zero transmission power. The UE then performs RSRP measurements based on the multiple CSI-RS configurations and reports RSRP measurement results to the serving eNB. In a second novel aspect, the serving eNB configures a second higher-layer configuration for CSI reporting based on the reported RSRP measurement results. In a third novel aspect, the serving eNB sends CSI-RS information to the UE for uplink power control.

Methods of point association for cooperative multiple point transmission

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Methods of point association for cooperative multiple point transmission