Abstract: Technology for a user equipment (UE) operable for beam management is disclosed. The UE can be configured to decode, at the UE, a transmission configuration indicator (TCI), wherein the TCI is configured for a control channel and a data channel for all bandwidth parts (BWPs) of the UE or all component carriers (CCs) of the UE. The UE can be configured to decode, at the UE, a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS) for beam management with a repetition parameter set to “ON” transmitted in one BWP or one CC in a first set of symbols. The UE can be configured to identify, at the UE, a scheduling restriction for the first set of symbols for the control channel and the data channel, wherein the scheduling restriction indicates that downlink transmission in the first set of symbols is not expected.

Abstract: A method and apparatus may include receiving, by a first network node, mapping information from at least one second network node. The mapping information indicates restrictions with respect to antenna ports to be used for measurements on each of one or more channel-state-information-reference-signal resources transmitted by at least one second network node. The method may also include transmitting a message to a user equipment. The message configures the user equipment to measure channel-state-information-reference-signal-received power from at least one of said one or more channel-state-information-reference-signal resources. The method may also include receiving a reporting from the user equipment.

Abstract: Described is an apparatus of a first User Equipment (UE) operable to communicate with on a wireless network. The apparatus may comprise a first circuitry, and a second circuitry. The first circuitry may be operable to establish a parameter set defining 5G Physical Downlink Control Channel (xPDCCH) transmission to the UE. The second circuitry may be operable to generate, for transmission to the UE, one or more messages including the parameter set.

Abstract: Devices and methods of receiving a PDCCH-less xSIB are generally described. A UE receive a xPBCH that occurs in a 0th or a 25th subframe and an ePBCH in an ePBCH transmission block. The ePBCH has the xSIB and is received on different Tx beams. The ePBCH spans consecutive symbols on the same subcarrier and with the same ePBCH symbol. The frame number, subframe number and symbol number of the ePBCH is dependent on a subframe number and symbol number of the xPBCH. The number of beams received for a particular symbol is dependent on a total number of beams, a beam sweeping time for the beams and a transmission periodicity of the xPBCH and ePBCH. The UE also uses different OCCs to demodulate a DMRS from different APs, in a same PRB as the ePBCH.

Abstract: Devices and methods of beamforming are generally described. A UE transmits to an eNB a BRSRP report having selected BRSRP values and associated BRS IDs. An active link list, a CSI resource indication, and a first active link are used to measure the CSI resource and CSI feedback is sent. A serving link ID is provided to indicate a second active link to use for control and data reception. Rx beams are trained based on multiple instances of each BRS and the eNB supplies selection criteria for the BRSRP report. The Rx beams are refined based on BRRS and the second active link is dependent on BRRSRP or CSI feedback. When configured for dual beam operation, the BRSRP feedback corresponds to BRSRP value pairs and dual Rx beams associated with a pair of serving link IDs are used.

Abstract: Technologies described herein provide mechanisms and formats to accomplish the beam switching. In one implementation, least one frame structure for both uplink (UL) and downlink (DL) beam switching is provided. The UL beam switching and refinement may rely on 5G Physical Random Access Channel (xPRACH) or 5G Sounding Reference Signal (xSRS). The DL beam switching and refinement may be done based on a beam refinement reference signal (BRRS). In some embodiments, to accomplish the both UL and DL beam switching and refinement in one subframe, the BRRS and xPRACH or xSRS may be located in one subframe.

Abstract: Techniques for transmit power control calculation by user equipments (UEs) are discussed. An example apparatus employable by a UE comprises a processor configured to: configure, for each active link of a set of active links, a distinct set of power control parameters, wherein each active link comprises a distinct combination of a UE beam of a set of UE beams and a transmission/reception point (TRP) beam of a set of TRP beams; process an uplink (UL) grant received via a control channel that indicates a first active link of the set of active links, wherein the first active link comprises a first UE beam and a first TRP beam; calculate a first transmit power based at least in part on the distinct set of power control parameters configured for the first active link; and output UL data for transmission via the first UE beam at the first transmit power.

Abstract: An apparatus of a user equipment (UE) may include a memory and one or more processors operatively coupled to the memory. The processors may process a scheduling trigger to provide channel state information (CSI) and beam information using extra-large physical uplink shared channel (xPUSCH). The processing device may also generate a reporting message comprising CSI and beam information. The processing device may then encode xPUSCH data to include the reporting message.

Abstract: Techniques for configuration of a user equipment (UE) for fifth generation (5G) Channel State Information (xCSI) Reference Signals (xCSI-RS) are discussed. One example apparatus employable at a base station comprises a processor configured to schedule a fifth generation Physical Downlink Shared Channel (xPDSCH) during one or more xPDSCH symbols of a subframe n; schedule a final M symbols of the one or more xPDSCH symbols for fifth generation Channel State Information Reference Signals (xCSI-RS); and output one or more control messages to transmitter circuitry for transmission to one or more User Equipments (UEs), wherein the one or more control messages comprise a xCSI-RS configuration for the one or more UEs, wherein the xCSI-RS configuration indicates the value of M and the final M symbols scheduled for xCSI-RS.

Abstract: A method and apparatus may include receiving, by a first network node, mapping information from at least one second network node. The mapping information indicates restrictions with respect to antenna ports to be used for measurements on each of one or more channel-state-information-reference-signal resources transmitted by at least one second network node. The method may also include transmitting a message to a user equipment. The message configures the user equipment to measure channel-state-information-reference-signal-received power from at least one of said one or more channel-state-information-reference-signal resources. The method may also include receiving a reporting from the user equipment.

Abstract: Various communication systems may benefit from codebook methods and devices for multiple transmitters. For example, a codebook for four transmitters (4Tx) may provide further enhancement for downlink multiple-input multiple-output (DL-MIMO) systems. A method can include weighting a signal for transmission based on a precoder selected according to a feedback from a codebook, such as codebooks A, B, C, D, or E, described herein. The method can also include sending the weighted signal.

Abstract: A method comprises determining in a first network element how much of a received uplink transmission is to be transmitted to a second network element, said first and second network elements both receiving said uplink transmission; and causing at least part of said received uplink transmission to be transmitted to said second network element.

Abstract: Systems, methods, apparatuses, and computer program products relating to coordinated scheduling with adaptive muting are provided. One method comprises transmitting, by a network element, calculated impact information for a cell of the network element when taking an action related to a cell of the network element and/or taking an action related to a cell of a second network element. The method may also comprise transmitting a request for taking the action related to the cell of the second network element under certain circumstances.

Abstract: A UE is configured with restrictions that restrict resources carrying RSs and IMRs to specific resources to be used by the UE for determining CSI. The restrictions are both of the following: first restrictions in time, frequency, or both time and frequency of resources that carry the reference signals; and second restrictions in time, frequency, or both time and frequency of resources that carry the interference measurement resources. The RSs and IMRs are transmitted by a base station to and received by the UE. The UE determines the CSI based on the specific resources for the RSs and IMRs. The CSI, determined based on the RS, IMRs, and the restrictions, is received from and transmitted by the UE. The base station uses the CSI for a MU-MIMO transmission. Apparatus, methods, computer software, and program products are disclosed.

Abstract: An example technique may include determining, by a user device, a reference precoding vector for each of a plurality of rank indications, selecting, by the user device, a rank indication of the plurality of rank indications for data transmission based on reference signals received from the base station and the reference precoding vector for each rank indication, sending, from the user device to the base station, the selected rank indication for data transmission, determining, by the user device, one or more channel quality indications (CQIs) for the data transmission based on the reference signals received from the base station, the selected rank indication and the reference precoding vector for the selected rank indication, and sending, by the user device to the base station, the determined one or more channel quality indications (CQIs) for the selected rank indication.

Abstract: Indication(s) of a configuration of first interference measurement resources in first subframe(s) and of a configuration of second interference measurement resources in second subframe(s) are received at a first BS and from a second BS using an interface between the first and second BSs. The first BS transmits zero or low power REs that coincide with the REs belonging to the first interference measurement resources in the first subframe(s). The first BS transmits full power REs that coincide with the REs belonging to the second interference measurement resources in the second subframe(s). The first interference measurement resources in the first subframe(s) are to be used by a UE (e.g., attached to the second base station) to measure interference for zero or low power REs and the second interference measurement resources in the second subframe(s) are to be used by the UE to measure interference for full power REs.

Abstract: A method and apparatus can be configured to transmit a physical-resource-block muting request to a neighboring network entity. The method can also include transmitting at least one muting priority level for at least one physical-resource-block of the physical-resource-block muting request.

Abstract: Indication(s) of a configuration of first interference measurement resources in first subframe(s) and of a configuration of second interference measurement resources in second subframe(s) are received at a first BS and from a second BS using an interface between the first and second BSs. The first BS transmits zero or low power REs that coincide with the REs belonging to the first interference measurement resources in the first subframe(s). The first BS transmits full power REs that coincide with the REs belonging to the second interference measurement resources in the second subframe(s). The first interference measurement resources in the first subframe(s) are to be used by a UE (e.g., attached to the second base station) to measure interference for zero or low power REs and the second interference measurement resources in the second subframe(s) are to be used by the UE to measure interference for full power REs.

Abstract: Various communication systems may benefit from codebook methods and devices for multiple transmitters. For example, a codebook for four transmitters (4Tx) may provide further enhancement for downlink multiple-input multiple-output (DL-MIMO) systems. A method can include weighting a signal for transmission based on a precoder selected according to a feedback from a codebook, such as codebooks A, B, C, D, or E, described herein. The method can also include sending the weighted signal.

Abstract: Indication(s) of a configuration of first interference measurement resources in first subframe(s) and of a configuration of second interference measurement resources in second subframe(s) are received at a first BS and from a second BS using an interface between the first and second BSs. The first BS transmits zero or low power REs that coincide with the REs belonging to the first interference measurement resources in the first subframe(s). The first BS transmits full power REs that coincide with the REs belonging to the second interference measurement resources in the second subframe(s). The first interference measurement resources in the first subframe(s) are to be used by a UE (e.g., attached to the second base station) to measure interference for zero or low power REs and the second interference measurement resources in the second subframe(s) are to be used by the UE to measure interference for full power REs.