Abstract: The present disclosure provides a signal transmission method and a signal transmission device. The signal transmission method includes: transmitting a first reference signal, the first reference signal indicating that the first network device is subjected to remote interference; and receiving a second reference signal, the second reference signal indicating that there is the remote interference and/or atmospheric ducting phenomenon.

Abstract: Systems and methods for port selection in a wireless communication system are disclosed. In embodiment, a method performed by a radio access network (RAN) node for mapping Sounding Reference Signal (SRS) ports to transmission layers comprises obtaining a channel matrix, H, for one subcarrier or a group of subcarriers for a particular User Equipment (UE) and transforming the channel matrix, H, using a Singular Value Decomposition (SVD) of the channel matrix to thereby provide a transformed channel matrix. The method further comprises computing beamforming weights using the transformed channel matrix. Embodiments of a RAN node are also disclosed.

Abstract: There is provided mechanisms for CSI quality triggered determination of AR model order for a channel prediction filter. A method is performed by a network node. The method comprises obtaining an indication of declining CSI quality in a radio environment. The method comprises, in response thereto, obtaining an estimation of current channel conditions in the radio environment. The method comprises determining the AR model order based on the estimation of current channel conditions. The method comprises performing channel prediction of the radio environment using the channel prediction filter. The channel prediction filter is defined by an AR model having the determined AR model order.

Abstract: Systems and methods are disclosed for port selection for a wireless communication system. In one embodiment, a method performed by a Radio Access Network (RAN) node comprises dividing a channel matrix of one subcarrier of a Multiple-Input-Multiple-Output (MIMO) channel between an antenna array of the RAN node and a particular User Equipment (UE) into sub-matrices. The method further comprises forming a re-ordered channel matrix as a concatenation of the sub-matrices and forming a port-sorting matrix based on eigen vector matrices and eigen value matrices obtained via Eigen Value Decompositions (EVDs) performed on channel covariance matrices for the sub-matrices. The method further comprises applying the port-sorting matrix to the re-ordered channel matrix, re-ordering column vectors in the port-sorted channel matrix based on eigen values obtained from the EVDs, and applying grouping of the re-ordered, port-sorted channel matrix and port sorting accordingly to obtain a final port-sorted channel matrix.

Abstract: A resource processing method and a resource processing device are provided. The method includes: configuring at least one downlink resource in addition to a cell-specific resource configuration; and/or configuring at least one uplink resource.

Abstract: Embodiments herein relate to method performed by a radio network node for handling communication in a wireless communication network. The radio network node dynamically applies different muting patterns for muting an active component of one or more antenna branches of the radio network node and/or of one or more antenna panels of the radio network node, wherein the different muting patterns are associated with one or more types of physical channels used for communicating and/or a communication parameter related to one or more UEs. The radio network node performs a communication using the dynamically applied different muting patterns.

Abstract: A method, system and apparatus are disclosed. According to one or more embodiments, a network node is provided. The network node includes processing circuitry configured to determine a precoder using one of wideband channel state information and frequency-dependent channel state information based on at least one mobility estimate, and cause transmission to a wireless device using the determined precoder.

Abstract: Disclosed is a method and a network node for handling random access in a wireless communication network. The method includes receiving a random access preamble when a first number of receivers are active and a second number of the receivers are inactive, and sending a random access response to the received random access preamble. The method further includes determining whether a reception requirement for a subsequent random access procedure message is fulfilled, the subsequent random access procedure message being sent subsequent to the network node sending the random access response, the reception requirement being either whether the random access procedure message is received at the network node or whether the random access procedure message that is received has a sufficient quality, and when the reception requirement is determined not fulfilled, activating at least some of the inactive second number of receivers.

Abstract: A method performed by a network node for creating a precoder for forming a Downlink, DL, beam between the network node and a User Equipment, UE, which DL beam is for reciprocity-based Multiple Input Multiple Output, MIMO, communication in a wireless communications network is provided. The network node obtains matched filter channel estimates for an Uplink, UL, signal, based on a reference signal from the UE known by the network node. The network node obtains a hypothesis testing space within a first precoder codebook, of one polarization, based on the matched filter channel estimates. The network node selects a set of precoder candidates out of the first precoder codebook in accordance with the hypotheses testing space. The network node creates the precoder for forming the DL beam between the network node and the UE, based on calculating a linear combination of the precoder candidates in the set of precoder candidates.

Abstract: An information reporting method, a data transmission method, a user equipment and a network side device are provided. The information reporting method is applied to the user equipment and includes reporting retransmission times information to the network side device.

Abstract: A method of determining uplink and downlink transmission configuration, a method of configuring uplink and downlink transmission and devices thereof are provided. The method of determining uplink and downlink transmission configuration applied to a UE includes: determining a correspondence relationship between a start position of uplink and downlink transmission period and a start position of radio frame, based on uplink and downlink transmission configuration parameters configured by a base station, where the uplink and downlink transmission configuration parameters include one set of uplink and downlink transmission configuration parameters or two sets of uplink and downlink transmission configuration parameters, and each set of uplink and downlink transmission configuration parameters includes an uplink and downlink transmission period.

Abstract: A method and an apparatus for transmitting indication signaling, a method and an apparatus for receiving indication signaling, a network side device and user equipment are provided. The method includes: transmitting indication signaling on a target physical resource or a target downlink control channel, wherein the indication signaling includes monitoring information for at least one UE, and the monitoring information includes at least one of: first indication information, used to indicate an activity state for at least one subsequent discontinuous reception (DRX) cycle; second indication information, used to indicate a DRX parameter configuration for the at least one subsequent DRX cycle; third indication information, used to indicate monitoring information of a downlink control channel to be monitored; fourth indication information, used to indicate a monitoring state in at least one subsequent paging occasion.

Abstract: A method is disclosed for spatial resource selection from a plurality of spatial resources. The method comprises—for each spatial resource of the plurality of spatial resources—receiving a plurality of reference signal blocks using the spatial resource (wherein at least some of the reference signal blocks are received in different frequency intervals and during different time intervals), determining (for each received reference signal block) whether or not a signal quality metric of the received reference signal block meets a quality criterion, and determining whether the spatial resource is to be considered for spatial resource selection based on the quality criterion determinations of the received reference signal blocks. The spatial resources may be beams of a beam-forming application, or antennas of a multi-antenna arrangement, or multiple-input multiple-output (MIMO) streams.

Abstract: Disclosed are a power control method and device, a terminal, and a storage medium. The method comprises: determining a reference point corresponding to the closed-loop power control parameter of a PUSCH transmission unit i; determining a power adjustment amount corresponding to the closed-loop power control parameter of the transmission unit i; determining the closed-loop power control parameter of the transmission unit i according to the reference point and the power adjustment amount; and determining the transmit power of uplink data to be transmitted at the transmission unit i according to the closed-loop power control parameter of the transmission unit i.

Abstract: A transmit power indication method, a transmit power receiving method, a network device and an access device are provided. The transmit power indication method is applied to a network device, and includes transmitting indication information on a first link of the network device, wherein the indication information is used to indicate current transmit power of the first link of the network device, or to indicate a transmit power offset of the first link, wherein the transmit power offset is a difference between the current transmit power of the first link and transmit power of the network device before the network device transmits the indication information.

Abstract: A method and device for configuring a PDCCH time domain monitoring position are provided. The method includes: receiving PDCCH search space configuration signaling, wherein the PDCCH search space configuration signaling includes a PDCCH monitoring periodicity, a PDCCH monitoring offset, and indication signaling for indicating the starting position of a first symbol in which a PDCCH is located; and determining a time domain position for monitoring the PDCCH according to the PDCCH search space configuration signaling.

Abstract: The present disclosure provides a method and a device for transmitting information in a wireless communication system. In the method for transmitting information in a wireless communication system provided by embodiments of the present disclosure, a granularity is provided, when uplink (UL) and downlink (DL) adopt different numerologies, and a corresponding timing is provided by taking the granularity as a unit, which provides a basis for scheduling design of 5G New Radio (NR).

Abstract: A frame structure configuration method, a frame structure obtaining method, a base station and UE are provided. The frame structure configuration method includes transmitting at least two cell-specific frame structure configurations concatenated in a time domain to the UE. Different periodicities of cell-specific uplink and/or downlink resources that are concatenated in a time domain are supported, and/or different configurations for the uplink and/or downlink resources within periodicities concatenated in the time domain are supported. In some embodiments, the base station transmits at least two cell-specific frame structure configurations concatenated in a time domain to the UE, where two periodicities of cell-specific uplink and/or downlink resources that are concatenated in a time domain have different durations, and/or, the uplink and/or downlink resources within the two periodicities concatenated in the time domain have different configurations.

Abstract: The present invention provides a data transmission method, a sending terminal device, and a receiving terminal device. The data transmission method corresponding to the sending terminal device comprises: configuring a transmit power by using a power control parameter of the receiving terminal device, wherein in the case where the sending terminal device is a base station, the receiving terminal device is an integrated access and backhaul (IAB) apparatus, and in the case where the sending terminal device is a parent IAM apparatus, the receiving terminal device is a child IAB apparatus; and transmitting a downlink service by using the configured transmit power.

Abstract: A method and an apparatus for transmitting indication signaling, a method and an apparatus for receiving indication signaling, a network side device and user equipment are provided. The method includes: transmitting indication signaling on a target physical resource or a target downlink control channel, wherein the indication signaling includes monitoring information for at least one UE, and the monitoring information includes at least one of: first indication information, used to indicate an activity state for at least one subsequent discontinuous reception (DRX) cycle; second indication information, used to indicate a DRX parameter configuration for the at least one subsequent DRX cycle; third indication information, used to indicate monitoring information of a downlink control channel to be monitored; fourth indication information, used to indicate a monitoring state in at least one subsequent paging occasion.