Abstract: An apparatus comprising: radio frequency paths for antenna elements of an array of antenna elements; and means for: determining which of a first group of radio frequency paths are transmission radio frequency paths to be used for transmission and which of a second group of radio frequency paths are reception radio frequency paths to be used for reception; and controlling when to use the determined transmission radio frequency paths for transmission and the determined reception radio frequency paths for reception.

Abstract: An apparatus, a method and a computer program is described comprising: receiving a plurality of synchronisation symbol blocks; classifying the received synchronisation symbol blocks based on delay relative to an expected reception time; and identifying one or more candidate line of sight paths on the basis of the delay relative to the expected reception time.

Abstract: An apparatus for use by a UE configured to conduct a communication in a communication network. The apparatus is configured to receive and process signals from the communication network via signal receiving portions, wherein one of the signal receiving portions is a serving cell signal receiving portion used for connecting to the communication network via a serving cell, and another of the signal receiving portions is a non-serving cell signal receiving portion being not used for connecting to the communication network. A signal receiving portion specific offset value is obtained for each of the signal receiving portions. Signal quality values for signals received by the signal receiving portions from the communication network are measured, wherein the cells include the serving cell. A measurement report is sent to the communication network on the basis of the results of the signal quality measurements and the offset values for the signal receiving portions.

Abstract: An apparatus comprising: an antenna array comprising a plurality of antenna elements configured for receiving multiple input multiple output (MIMO) signals. The antenna array comprises at least a first subpart of the antenna array comprising a first subsection of the plurality of antenna elements. A second subpart of the antenna array comprises a second subsection of the plurality of antenna elements. An alignment of the antenna elements in the second subpart deviates substantially by 30°-60° from an alignment of the antenna elements in the first subpart.

Abstract: Systems, methods, apparatuses, and computer program products for improving measurement accuracy for multipanel UEs with a single baseband unit are provided. One method may include receiving, by a user equipment, at least one of at least one layer 3 filter time constant Tcst_x or at least one scaling factor, and updating, by the user equipment, at least one current filter time constant according to at least one of the received Tcst_x or the at least one scaling factor.

Abstract: In a system, apparatus, method, and non-transitory computer readable medium for implementing fallback to conditional handover using a SSB reference signal, a UE device may be caused to, receive RRC reconfiguration information from a source RAN node, the RRC reconfiguration information including a SSB RS based CHO execution condition associated with at least one target cell controlled by a target RAN node, and a CSI-RS based CHO execution condition associated with the target cell(s), perform signal measurements of at least one SSB RS and at least one CSI-RS associated with the target cell(s), the at least one CSI-RS associated with a contention-free random access resource, and perform the CHO with the target cell(s) based on the signal measurement results of the at least one SSB RS, the at least one CSI-RS, the SSB based CHO execution condition, and the CSI-RS based CHO execution condition.

Abstract: Systems, methods, apparatuses, and computer program products for improving measurement accuracy for multipanel UEs with a single baseband unit are provided. One method may include receiving, by a user equipment, at least one of at least one layer 3 filter time constant Tcst_x, or at least one scaling factor, and updating, by the user equipment, at least one current filter time constant according to at least one of the received Tcst_x, or the at least one scaling factor.

Abstract: Apparatus for transmitting and/or receiving radio frequency, RF, signals, particularly for a mobile radio device for a wireless communications system, particularly a cellular communications system, said apparatus comprising a primary antenna module having a first radiation pattern, at least one secondary antenna module having a second radiation pattern, which is different from said first radiation pattern, and a control unit configured to selectively activate and/or deactivate said primary antenna module and/or said at least one secondary antenna module.

Abstract: Aspects and embodiments relate to an apparatus and method for performing antenna panel management.

Abstract: An apparatus is provided that includes a ground plane having a perimeter, at least one support positioned within the perimeter of the ground plane and extending outwardly from the ground plane and at least one multi-port antenna supported by the support at a distance from the ground plane. The multi-port antenna has a different radiation pattern associated with each port. The multi-port antenna operates with a first radiation pattern when a first port is used and operates with a second radiation pattern, different to the first radiation pattern, when a second port, different to the first port, is used. The at least one support defines a slot positioned between the multi-port antenna and the ground plane and/or the ground plane defines a slot.

Abstract: An apparatus, method and computer program is described comprising: receiving, at a user device, a downlink reference signal from a communication node of a mobile communication system, wherein the downlink reference signal is received by one of a plurality of beams of a receiver of the user device in accordance with a configured beam alignment; determining whether to initiate beam switching to reconfigure the beam alignment at said receiver based, at least in part, on a signal power of the received downlink reference signal; and determining, in the event that beam switching is to be initiated, whether to initiate communication node assisted beam switching or non-communication node assisted beam switching.

Abstract: Apparatus for receiving radio frequency, RF, signals, comprising at least two antenna panels, wherein each of the at least two antenna panels is configured to provide a respective received signal with an associated frequency spectrum, wherein the apparatus is configured to apply a frequency shift to at least one of the received signals such that center frequencies of at least two adjacent frequency spectra comprise a predetermined frequency distance from each other.

Abstract: An apparatus including a plurality of antenna panels; circuitry configured for receiving a synchronization signal burst including a plurality of synchronization signal blocks; circuitry for configuring, for a first sample, each of the plurality of antenna panels to be switched in alternating manner to measure received signal power level of each of the plurality of synchronization signal blocks; circuitry for configuring, for a predetermined number of subsequent samples, each of the plurality of antenna panels to be switched in alternating manner to measure the received signal power level of the synchronization signal block providing a highest received signal power level for said antenna panel in the first sample; and circuitry configured for sending a report of the measured received signal power level of said synchronization signal block to a network element.

Abstract: An apparatus, comprising: means for obtaining radio environment information related to at least one downlink signal received by a user equipment using at least one currently-active reception antenna panel of a plurality of selectively-activatable reception antenna panels; and means for reconfiguring at least one of the plurality of selectively-activatable reception antenna panels to be used for performing radio measurements of a downlink signal to be one of active and inactive in response to a variation in the radio environment information.

Abstract: Improved techniques of beam management in a HO situation include receiving, at a source node from a candidate target node after receiving a measurement report from a UE prior to completion of a HO, a repetition configuration of a channel state information reference signal (CSI-RS) resource index to be used by the UE for random access. When beam refinement occurs during HO, a candidate target cell for HO provides the UE with a repetition configuration of CSI-RS resource index that will be selected and used by the UE for random access to the target cell. When beam refinement occurs before HO, the candidate target cell of handover provides the UE (e.g. during the handover preparation phase in case of conditional HO (CHO)) with the repetition configuration of CSI-RS resource index (or indices) whose transmission(s) is repeated while the UE is served by the source cell and before executing a handover.

Abstract: A method, apparatus, and computer-readable storage medium are provided for selecting a target cell based on channel impulse response (CIR) measurements, which may include receiving measurement configuration information including a CIR parameter from a first network node and may further include generating one or more measurement reports based on the CIR parameter, the one or more measurement reports including CIR measurements of one or more beams of one or more neighbor cells associated with the first network node and/or second network nodes and transmitting the one or more measurement reports to the first network node. The selecting a target cell based on CIR measurements may include transmitting measurement configuration information including a CIR parameter and receiving one or more measurement reports, including CIR measurements of one or more beams of one or more network nodes and selecting a target cell for handover using the measurements.

Abstract: An apparatus and method for beam steering is disclosed. The apparatus comprises: a beam forming signal generator configured to generate a beam forming signal for applying to at least one of amplitude and phase shift circuitry associated with an antenna array to provide a radiation pattern. A determining means is provided that is configured to determine a signal strength of interfering signals received at the antenna array within a user equipment and to determine a dominant interfering ratio indicative of a strength of a strongest interfering signal relative to a strength of other interfering signals. A comparator is provided that is configured to compare the dominant interfering ratio to a predetermined ratio value and where the dominant interfering ratio exceeds the predetermined ratio value to generate a control signal for controlling the beam forming signal generator to generate a radiation pattern comprising a beam and at least one steered null.

Abstract: According to an example aspect of the present invention, there is provided a method, comprising: determining a quality metric for multiple input multiple output (MIMO) signal; comparing the determined quality metric to a threshold; and evaluating a power delay profile (PDP) of a radio channel based on the result of the comparison.

Abstract: An apparatus comprising: an antenna array comprising a plurality of antenna elements configured for receiving multiple input multiple output (MIMO) signals. The antenna array comprises at least a first subpart of the antenna array comprising a first subsection of the plurality of antenna elements. A second subpart of the antenna array comprises a second subsection of the plurality of antenna elements. An alignment of the antenna elements in the second subpart deviates substantially by 30°-60° from an alignment of the antenna elements in the first subpart.

Abstract: A communication apparatus (101, 1500) comprising a plurality of antenna panels (1513a, 1513b, 1513c, 1513d) is described. The apparatus comprises means for determining (302) whether a chained network deployment of cells (103-108) exists along a path (102) of said apparatus; means for selecting (304), in case said determination is positive, a neighbor cell (104) expected along said path; means for selecting (305), in case said determination is positive, an antenna panel of said plurality of antenna panels as a function of an information representative of a direction of motion of said communication apparatus along said path; and means for detecting (306) said expected neighbor cell using said antenna panel. Methods and base stations are also described.