Abstract:
One or more embodiments provide a method implemented in a user equipment (UE) used in a wireless communications system. The method includes transmitting an indication to a base station that the UE is capable of transmitting on a single uplink carrier frequency and downlink carrier aggregation. The method also includes receiving an uplink carrier frequency switching pattern from the base station. The method also includes switching uplink carrier frequencies based on the uplink carrier frequency switching pattern.
Abstract:
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)/Cell-Specific 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.
Abstract:
One or more embodiments provide a method implemented in a user equipment (UE) used in a wireless communications system. The method includes transmitting an indication to a base station that the UE is capable of transmitting on a single uplink carrier frequency and downlink carrier aggregation. The method also includes receiving an uplink carrier frequency switching pattern from the base station. The method also includes switching uplink carrier frequencies based on the uplink carrier frequency switching pattern.
Abstract:
Coordinate multi-point (CoMP) transmission is facilitated by resolving collisions between feedback reporting. Based upon the conditions within the network, collision resolution may be by dropping a channel report during a subframe, multiplexing channel reports from a plurality of user equipment, compressing channel reports a plurality of user equipment, and combined reporting, either through joint reports or by using carrier aggregation, for conditions between a user equipment and a plurality of transmission points. New signaling and reporting formats facilitate selection of a collision resolution suitable for current network conditions.
Abstract:
A method of operating a user equipment (UE). The method includes receiving a configuration message comprising a reporting type of channel state information (CSI). The method further includes calculating, in response to the configuration message, a CSI report comprising at least one precoding matrix indicator (PMI) associated with a codebook including a plurality of vectors, wherein each vector in the codebook represents a selection of a pair of antenna ports and a co-phasing between two antenna ports of the pair. The method further includes transmitting the CSI report on an uplink channel.
Abstract:
Coordinate multi-point (CoMP) transmission is facilitated by resolving collisions between feedback reporting. Based upon the conditions within the network, collision resolution may be by dropping a channel report during a subframe, multiplexing channel reports from a plurality of user equipment, compressing channel reports a plurality of user equipment, and combined reporting, either through joint reports or by using carrier aggregation, for conditions between a user equipment and a plurality of transmission points. New signaling and reporting formats facilitate selection of a collision resolution suitable for current network conditions.
Abstract:
A method for efficient data transmission in a wireless communication system includes dynamically configuring at least one period cycle (P-CYCLE) pattern comprising a period-on (P-ON) duration and a period-off (P-OFF) duration that are adjusted in accordance with a number of transmissions from user equipments (UEs) operating in a shared band spectrum, wherein the number of transmissions comprises a number of successful transmissions or a number of unsuccessful transmissions received from the UEs. The method further includes transmitting the P-CYCLE pattern including the P-ON duration and the P-OFF duration to the UEs using a downlink channel over the shared spectrum band, wherein the downlink channel comprises a higher layer signal or a physical layer signal.
Abstract:
A method for channel state information (CSI) measurement. The method comprises receiving a reference signal that is periodically transmitted in one or more discovery reference signal (DRS) occasions from an eNodeB (eNB) operating in a cell over an unlicensed spectrum band, wherein the reference signal in the one or more DRS occasions is dropped in accordance with at least one of a listen before talk (LBT) operation and a discontinuous transmission (DTX) operation and the reference signal includes at least one of a cell-specific reference signal (CRS) and a channel state information-reference signal (CSI-RS). The method further comprises measuring the received reference signal to generate a CSI measurement report and transmitting the CSI measurement report to the eNB according to a configuration received from the eNB.
Abstract:
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)/Cell-Specific 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.
Abstract:
A method of operating a user equipment (UE). The method includes receiving a configuration message comprising a reporting type of channel state information (CSI). The method further includes calculating, in response to the configuration message, a CSI report comprising at least one precoding matrix indicator (PMI) associated with a codebook including a plurality of vectors, wherein each vector in the codebook represents a selection of a pair of antenna ports and a co-phasing between two antenna ports of the pair. The method further includes transmitting the CSI report on an uplink channel.