Abstract:
Disclosed are example embodiments of methods and apparatuses for determining guard period location for sound reference signal antenna switching. A method implemented at a terminal device may comprise receiving a Sounding Reference Signal (SRS) resource set configuration. The SRS resource set configuration may include at least one SRS resource set configured for SRS antenna switching between different antenna ports. The method may further comprise determining a time-domain position of a guard period where the SRS antenna switching occurs based on indication of a predetermined rule.
Abstract:
Systems, methods, apparatuses, and computer program products for uplink (UL) sounding reference signal (SRS) resource configuration may be provided. UL SRS resource configuration and related transmission procedures for intra-slot and inter-slot time bundling of one or more resources may be provided. In this regard, transmission bandwidth and/or repetition factors may be adapted for SRS occasions. The adaptation may be performed across an SRS bandwidth, and on an intra-slot or inter-slot basis.
Abstract:
The method includes performing at least one first monitoring of a power savings channel of a physical downlink control channel (PDCCH) for control information, the PDCCH being associated with at least one base station, the control information including a power saving downlink control information (PS-DCI) format, the control information providing an indication to start a timer for an ON duration of a discontinuous reception (DRX) cycle for a user equipment (UE) to monitor the PDCCH. The method further includes performing a random-access channel (RACH) procedure with the at least one base station based on the control information. The network node performs the method.
Abstract:
A method can include transmitting, by a user equipment to a base station, coherence information indicating, based on precoding to be performed in association with transmission, whether multiple transmission signals to be transmitted via multiple transmission ports will be coherent with each other, receiving, from the base station, a transmission indication message, the transmission indication message assigning uplink transmission resources and coherence information to the multiple transmission ports, and transmitting, to the base station via the assigned uplink transmission resources, the multiple transmission signals via the multiple transmission ports.
Abstract:
An apparatus for a terminal has means for storing a first configuration for measurement reporting on downlink reference signals, wherein one or more downlink reference signals correspond to one of a plurality of states for a first channel. The apparatus also has means for receiving an activation of a first state of the plurality of states for the first channel, and determining a second configuration for measurement reporting based on the first configuration for measurement reporting and the received activation of the first state, wherein the second configuration for measurement reporting configures the terminal to report measurements on a first downlink reference signal corresponding to the first state.
Abstract:
In accordance with example embodiments of the invention there is at least a method and apparatus to perform at least receiving from a communication network, by a user equipment, a measurement configuration; determining to adapt the measurement configuration, wherein the adapted measurement configuration identifies mobility measurements for use by the user equipment based on at least one condition; and performing the adapted measurement configuration instead of the measurement configuration received from the communication network.
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:
The described invention relates to wireless communications, and more particularly to multi- beam downlink transmissions on a sweeping subframe such as for example may be deployed in 5G radio access technology (RAT) systems being developed to operate in the millimeter-wave (mmWave) spectrum. A method comprises signaling downlink a beam configuration for each of a plurality of antenna ports of a plurality of transmit-receive points (TRPs) operating in a cell. Within a beam sweeping period defined by the signaled beam configurations, the method also comprises transmitting beam reference signals (BRSs) from the respective antenna ports of the respective TRPs according to the respective beam configurations. In addition, the method comprises transmitting at least one of other control signalling and data from one or more of the antenna ports while at least one other of the antenna ports is transmitting its respective BRS.
Abstract:
The specification and drawings present methods and apparatuses for feedback signaling for beamforming purposes in a multiple input-multiple output (MIMO) radio environment. According to an embodiment of the invention, a mobile device is configured to measure an integer number P of different beam groups, each group representing one or more transmit beams and each group corresponding to one or more antenna ports at the mobile device (502). The mobile device is triggered according to the configuration to provide feedback (504). The radio access node (506) transmits reference signals on each of the transmit beams across all of the groups for measurement by the mobile device and receives the triggered feedback comprising, for each of the different beam groups, at least one best match between a transmit beam of the respective group and a corresponding antenna port and an indication of measurement results for the best match (508).
Abstract:
Disclosed is a method comprising determining a spatial direction for a time interval between a first reference signal resource set in a first time slot and a second reference signal resource set in a second time slot; and transmitting one or more uplink transmissions and/or receiving one or more downlink transmissions according to the determined spatial direction during the time interval.