Abstract: A method, apparatus, and a computer-readable storage medium for beam refinement of a two-step random access channel (RACH) procedure are provided. In some implementations, the method may include receiving a plurality of synchronization signal blocks (SSBs), a plurality of channel state information-reference signals (CSI-RSs) associated with each of the plurality of synchronization signal blocks (SSBs), and random access channel (RACH) configuration data from a gNB. The method may further include transmitting a first message of the two-step random access channel (RACH) procedure to the gNB, the first message including a first portion and a second portion. The first portion includes a preamble associated with a selected channel state information-reference signal (CSI-RS) of the plurality of channel state information-reference signals (CSI-RSs) and the second portion includes data associated with the preamble, and the data transmitted using pre-configured or pre-allocated resources.

Abstract: In accordance with an example embodiment of the present invention, methods and apparatus are provided to allow exchange of synchronization sequences in a manner substantially agnostic of a configuration of the transmitter by provisioning of an in indication whether or not synchronization sequences may be combined with other synchronization sequences.

Abstract: A method and apparatus may include configuring, by a base station, a synchronization signal. The synchronization signal may be aligned with a sub carrier spacing grid of a radio access technology. The synchronization signal may be positioned at a frequency location that is the same or about the same as a frequency step of a channel raster. The synchronization signal may be transmitted to a user equipment so that the center of the synchronization signal is transmitted with a frequency offset with respect to the center of the radio-access technology bandwidth.

Abstract: In accordance with an example embodiment, there is disclosed a method comprising: receiving, by a user device, from at least one base station, at least two CSI reporting configurations for at least one of periodic and semi-persistent CSI reporting; determining that at least two CSI reports are to be reported for the at least two CSI reporting configurations in a slot; determining whether PUCCH resources for the at least two CSI reporting configurations are overlapping in time on a carrier; and ranking different CSI reports associated with each of the at least two CSI reporting configurations in a priority order in response to a determination that at least two PUCCH resources associated with the at least two CSI reporting configurations overlap in time at least partially.

Abstract: In accordance with an example embodiment of the present invention, methods and apparatus are provided to allow exchange of synchronization sequences in a manner substantially agnostic of a configuration of the transmitter by provisioning of an in indication whether or not synchronization sequences may be combined with other synchronization sequences.

Abstract: Various communication systems may benefit from an improved transmission of a sounding reference signal. For example, certain communication systems may benefit from an enhanced sounding reference signal transmission via antenna switching or repetition. A method, in certain embodiments, may include receiving a signaling indication at a user equipment from a network entity. The signaling indication may indicate a configuration for sounding reference signal transmission via at least one of antenna switching or repetition using a resource group. The resource group may comprise a plurality of resources that are either adjacent or have a limited time interval between at least two of the plurality of resources within the resource group. The method may also include transmitting the sounding reference signal from the user equipment to the network entity via at least one of the antenna switching or the repetition using the resource group.

Abstract: Various communication system may benefit from the appropriate selection of communication parameters. For example, certain wireless communication systems may benefit from the user of a low-overhead high-rank codebook. A method can include determining a first partition of a precoding matrix with a higher resolution and a second partition of the precoding matrix with a lower resolution. The method can also include feeding back the first partition and the second partition.

Abstract: In accordance with an example embodiment, there is disclosed a method comprising: transmitting a first downlink channel via a primary beam within n slots, wherein n is a time between the transmission of an uplink control channel carrying HARQ information corresponding to the first downlink channel transmitted via the primary beam and a next time instance that a second downlink channel is configured be monitored from a secondary beam; receiving HARQ feedback within m slots calculated from a slot number configured to monitor the second downlink channel on at least one secondary beam, wherein m is time between a scheduled downlink channel and a next downlink channel monitoring instance via the secondary beam; and in response to receiving the HARQ feedback, ignoring a monitored downlink channel pattern and scheduling at least one user device using the primary beam on the slot number configured to monitor the second downlink channel on the at least one secondary beam.

Abstract: Methods and apparatus, including computer program products, are provided for beamforming control. In some example embodiments, there may be provided a method. The method may include providing, by a user equipment configured to include a plurality of antenna panels, capability information to a base station, the capability information including antenna panel information regarding the plurality of antenna panels; and providing, by the user equipment, antenna panel usage information to the base station, the antenna panel usage information indicative of which of the plurality of antenna panels are in at least one of an active transmit state or an active receive state. Related systems, methods, and articles of manufacture are also disclosed.

Abstract: An example of an embodiment is a method including: allocating, by a network node, an uplink non-orthogonal reference signal sequence to each of a plurality of user equipments within a cooperation area; receiving, from at least one user equipment of the plurality of user equipments, the uplink non-orthogonal reference signal allocated to the at least one user equipment; and determining channel state information for the at least one user equipment based on the received uplink non-orthogonal reference signal.

Abstract: A method comprising: performing one or more measurements in a user device to determine a plurality of beam groups, each beam group associating at least one receive beam direction of a user device and at least one transmit beam direction of an access point; and causing information on said beam groups to be transmitted to said access point.

Abstract: Various communication systems may benefit from appropriate assumptions regarding physical or electrical characteristics of the systems. For example, fifth generation (5G) or similar communication systems may benefit from appropriate antenna co-location and receiver assumptions. A method can include receiving an indication of a set of co-location rules to apply from at least three sets of co-location rules. The method can also include applying the indicated set of co-location rules.

Abstract: A method comprises: configuring multiple reporting modes for multi-level based transmitter (TX) beam index reporting for a particular beam/antenna panel group from a plurality of beam/antenna groups, wherein the multiple reporting modes includes at least one of a full reporting mode configuration for the particular beam/antenna panel group, a full reporting mode configuration common for the plurality of beam/antenna panel groups, a differential reporting mode, and a partial reporting mode, selecting a reporting mode from the multiple reporting modes, and sending a report based on the selected reporting mode.

Abstract: Various communication systems may benefit from improved performance. For example, communication systems may benefit from a multi-functional reference signal that allows for the harmonization of different reference signal patterns. A method, in certain embodiments, may include constructing at a base station a reference signal including a plurality of reference signal patterns. The plurality of reference signal patterns can include at least one of a default reference signal pattern or a multi-functional signal pattern for at least one of uplink or downlink. The plurality of reference signal patterns can include at least one of partially overlapping or non-overlapping resource elements. In addition, the plurality of reference signal patterns are constructed dynamically for a specific user or group of users. The method may also include sending the reference signal from the base station to a user equipment.

Abstract: Various communication systems may benefit from improved signaling. For example, communication systems may benefit from sending a multi-numerology reference signal that allows a receiving user equipment to perform simultaneous beamforming training, and channel estimation or channel state information acquisition. A method may include receiving at a user equipment a multi-numerology joint reference signal (610). The reference signal may include a reference signal for data channel demodulation or channel state information acquisition, and beamforming training. The method may also include performing simultaneous beamforming training and channel estimation or channel state information acquisition based on the multi-numerology joint reference signal (620).

Abstract: Signaling is received (or transmitted) to configure a UE with multiple transmit beams, each for receiving beam-specific DCI. A beam-specific current DCI is received at the UE (or transmitted from a network) on the transmit beam(s), including information about beam-specific previous DCIs transmitted to the UE on any of the multiple transmit beams within a predefined time window preceding a time unit in which the current DCI was received. Information about the beam-specific previous DCIs is used to determine that at least one of the multiple transmit beams has been blocked. Each of the multiple transmit beams that have been determined to be blocked is reported to (and received by) the network. In response to receiving from the UE a report indicating at least one multiple transmit beams has been blocked, the network reconfigures the UE with a different set of multiple transmit beams each for beam-specific DCI.

Abstract: A technique includes selecting, by a user device independently for each of a plurality of sounding reference signal resources, an uplink data channel power control parameter set for an uplink data channel beam pair to be used to adjust a sounding reference signal transmission power for a sounding reference signal beam pair, adjusting, by the user device for each sounding reference signal resource based on a selected uplink data channel power control parameter set, asounding reference signal transmission power for a sounding reference signal, and transmitting, by the user device, each of a plurality of power-adjusted sounding reference signals via a corresponding sounding reference signal resource and a corresponding sounding reference signal beam pair.

Abstract: Systems, methods, apparatuses, and computer program products for the configuration of beam failure detection reference signals are provided.

Abstract: When a time domain collision between Tracking Reference Signal (TRS) symbols and downlink shared data channel symbols is detected, the TRS symbols may be multiplexed with the downlink shared data channel symbols from multiple Transmission Reception Points (TRPs) not sharing quasi co-location (QCL) parameters with each other. If a time domain collision between TRS symbols and dynamically or semi-static (e.g., persistent) downlink shared data channel transmissions is detected, transmission and/or reception of the TRS and/or the downlink shared data channel may be adjusted.

Abstract: Various communication systems may benefit from improved transmissions. For example, a network transmission may benefit from improved throughput and efficiency in non-schedule multiple access communications. A method includes selecting at a user equipment operating in a non-scheduled access scheme at least one of a first codeword or a second codeword based on an amount of data. The data in the non-scheduled access scheme can be spread according to a spreading sequence. The method also includes determining a transport block size for at least one of the first codeword or the second codeword. In addition, the method includes transmitting the data from the user equipment to a network node using at least one of the first codeword or the second codeword.