Abstract: Embodiments of the present disclosure relate to methods and devices for uplink puncturing. In example embodiments, the terminal device obtains a first signal to be transmitted for a first service requiring a first latency. Then, the terminal device determines whether a resource block has been a shared one for the first service requiring a first latency or allocated by a network device for a second service requiring a second latency higher than the first latency. If it is determined that the resource block has been allocated for the second service, the terminal device selects a first set of resource elements based on a predefined pattern of resource elements. The first set of resource elements are discontinuously distributed in the allocated resource block. The terminal device transmits the first signal for the first service to the network device at the first set of resource elements.

Abstract: According to the present disclosure, behaviors of a Base Station (BS) and a User Equipment (UE) pertinent to Reference Signal (RS) transmissions are discussed. BS may configure RS corresponding to a set of antenna ports in two or more groups of Orthogonal Frequency Division Multiplexing (OFDM) symbols on a short Physical Downlink Sharing CHannel (sPDSCH), where subcarrier indices used for RS transmission are different between at least two groups of OFDM symbols. Then, BS may transmit the RS to UE. UE will receive RS and perform channel estimation based on the received RS.

Abstract: A transmitting node determines data for a first service will be transmitted during a time period when data for a second service will be transmitted. The data for the first service requires lower latency than the data for the second service and the data for the first service includes an original set of data for the first service and at least one repetition of the original set of data for the first service. The transmitting node adjusts resources consumed by the data for the first service based on available transmission resources. During the time period the transmitting node then transmits the data for the first service using the adjusted resources while data for the second service is transmitted during the time period.

Abstract: A method for antenna calibration is proposed. The method may comprise setting a first control unit to a first operation mode. The first control unit may be located on a first antenna path of a first antenna array which has a plurality of antennas. Under the first operation mode of the first control unit, a calibration signal for the first antenna path can be isolated from interference. The method may further comprise obtaining a measurement based at least partly on the calibration signal for the first antenna path. The method may further comprise performing antenna calibration for the plurality of antennas of the first antenna array based at least partly on the obtained measurement.

Abstract: An access point (100-1) of a wireless communication network serves a connection to a user equipment (50). The access point (100-1) determines a plurality of target access points (100-2, 100-3). Further, the access point (100-1) sends a message (204) to the user equipment (50). The message (204) indicates the plurality of target access points (100-2, 100-3) and authorizes the user equipment (50) to autonomously switch the connection to one or more of the target access points (100-2, 100-3).

Abstract: Different Transmission Block Size (TBS)/Modulation and Coding Scheme (MCS) mapping tables, especially TBS/MCS mapping table sets, are used for Ultra-Reliable and Low-Latency Communications (URLLC) traffic and non-URLLC traffic. A TBS/MCS mapping table for URLLC is selected by a network node, upon determination of traffic type as URLLC, and informed to a user equipment (UE). The informing can be a TBS/MCS mapping table index. After receiving the information of TBS/MCS mapping table selection, the UE identifies the selected TBS/MCS mapping table from its TBS/MCS mapping table set for URLLC.

Abstract: Embodiments of the present disclosure provide methods, devices and computer program for downlink control channel transmission and detection. According to one or more embodiments, a method implemented in a network device comprises: selecting, for a terminal device, at least one set of downlink control channel candidates from two or more sets of downlink control channel candidates. Each set of the two or more sets of the downlink control channel candidates is associated with a different communication level, each communication level corresponding to one or more of a different set of aggregation levels, a different set of transmission formats, a different target block error rate (BLER), and a different target latency. The method further comprises transmitting, to the terminal device, the selected at least one set of downlink control channel candidates.

Abstract: Embodiments of the present disclosure provide methods, devices and computer program for downlink control channel transmission and detection. According to one or more embodiments, a method implemented in a network device comprises: selecting, for a terminal device, at least one set of downlink control channel candidates from two or more sets of downlink control channel candidates. Each set of the two or more sets of the downlink control channel candidates is associated with a different communication level, each communication level corresponding to one or more of a different set of aggregation levels, a different set of transmission formats, a different target block error rate (BLER), and a different target latency. The method further comprises transmitting, to the terminal device, the selected at least one set of downlink control channel candidates.

Abstract: A wireless communications system (10) and a method therein for transmission of a downlink signal in a wireless communications network (100) supporting beamforming. The system estimates uplink channel information for a radio link from a wireless device (120) to a radio network node (110). Further, the system obtains downlink beamforming information related to the estimated uplink channel information from a machine learning unit (300). The machine learning unit comprises relationships between beamforming information and uplink channel information determined based on stored pairs of reported downlink beamforming information and measured uplink channel information. The obtained downlink beamforming information is applicable for the radio cell sector. Furthermore, the system transmits, towards the wireless device (120), a beamformed downlink signal using the obtained downlink beamforming information.

Abstract: The proposed embodiment provides an efficient way to implicitly detect at the receiver the puncturing information (i. e. time/frequency resources, MCS, TBS etc.) of the Ultra Reliable Low Latency Communication (URLLC) in the punctured Enhanced Mobile Broadband (eMBB) area. The performance of eMBB traffic can be improved by implicitly providing the puncturing information without any additional signaling or indications (e.g. does not require any additional bits).

Abstract: Techniques for an intelligent system processing uncertain causal relationship type information are disclosed herein.

Abstract: There is provided mechanisms for adaptive beamforming scanning. A method is performed by a network device having a non-uniform directional network coverage. The method comprises obtaining a beam pattern indicating spatial directions in which reception of identification signals is to be scanned, wherein the beam pattern is defined by the non-uniform directional network coverage.

Abstract: Embodiments of the present disclosure provide methods, devices and computer program for downlink control channel transmission and detection. According to one or more embodiments, a method implemented in a network device comprises: selecting, for a terminal device, at least one set of downlink control channel candidates from two or more sets of downlink control channel candidates. Each set of the two or more sets of the downlink control channel candidates is associated with a different communication level, each communication level corresponding to one or more of a different set of aggregation levels, a different set of transmission formats, a different target block error rate (BLER), and a different target latency. The method further comprises transmitting, to the terminal device, the selected at least one set of downlink control channel candidates.

Abstract: One embodiment of the present disclosure relates to a method for operating in a terminal device for downlink flow control. The terminal device receives duplicated packets from a first network node device and one or more secondary network node devices. The method comprises measuring downlink transmission information for the first network node device and the one or more secondary network node devices; deciding downlink flow control information based on the measured downlink transmission information; and sending the downlink flow control information to at least the first network node device. According to other aspects of the present disclosure, there are provided corresponding methods and devices.

Abstract: A method and device for transmitting feedback information. The method includes: determining feedback type information and/or delay information when data is transmitted by a network device; and determining a reliability grade of a feedback transmission or that the feedback transmission is exempted at a certain situation, according to the delay information and/or the feedback type information. Therefore, HARQ feedback load may be reduced without impacting HARQ performances.

Abstract: There is provided a method in a user equipment for a wireless communications network, comprising: receiving a configuration message from a base station for the wireless communications network, the configuration message indicating that data to be transmitted between the user equipment and the wireless communications network is to be duplicated; and responsive to receipt of the configuration message, transmitting a first data unit and a second data unit to the wireless communications network, or receiving a first data unit and a second data unit from the wireless communications network; wherein the second data unit is a duplicate of the first data unit, and wherein the first data unit is transmitted or received using first radio resources, and the second data unit is transmitted using second radio resources that are different than the first radio resources.

Abstract: The embodiments disclose a method for scheduling radio resources in a radio communication network. The method comprises obtaining two or more MAC modes to be used for scheduling radio resources; and partitioning the radio resources into multiple resource blocks, each of which associates with one of the two or more MAC modes. Each of the two or more MAC modes is used to schedule associated resource block. Meanwhile, the embodiments also disclose a method for transmitting traffic in the radio communication network. The method comprises selecting a MAC mode from a list of active MAC modes for the traffic. Each MAC mode in the list of active MAC modes associates with respective resource blocks and is used to schedule the associated resource block. The traffic is transmitted over resource scheduled by the selected MAC mode.

Abstract: According to the present disclosure, behaviors of User Equipment (UE) and base station (BS) pertinent to Scheduling Request (SR) and/or Buffer Status Report (BSR) as well as resource management in short Transmission Time Interval (sTTI) relevant scenarios are discussed. UE may firstly determine if the SR is triggered by a buffer status change of a delay-critical data which needs a sTTI. If so, UE will send the SR to BS on a first type of uplink control channel designed for sTTI. Otherwise, UE will send the SR to the base station on a second type of uplink control channel designed for legacy TTI.

Abstract: Embodiments of the disclosure generally relate to data transmission feedback. A terminal device receives a data packet transmitted from one or more network devices of the plurality of network device and determine whether triggering a feedback based on one or more of the received data packet, the monitored network devices and a timer Y at the terminal device. Latency for feedback of data transmission can be reduced and reliability can be improved.

Abstract: A transmitting node can puncture bundles of data for a first service in a transmission for a second service. The first service has lower latency requirements than the second service. The transmitting node determines data for a first service will be transmitted during a time period when data for a second service will be transmitted, and determines transmission or reception conditions. Based on the determined transmission or reception conditions, the transmitting node determines to adjust the transmission of the first service. The transmitting node then transmits during the time period the data for the first service while data for the second service is transmitted during the time period, wherein the transmission includes an original set of data for the first service and at least one repetition of the original set of data for the first service.