Abstract: The present disclosure relates to a communication technique for convergence of a 5G communication system for supporting a higher data transmission rate beyond a 4G system with an IoT technology, and a system therefor. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart or connected cars, health care, digital education, retail business, security and safety-related services, etc.) on the basis of a 5G communication technology and an IoT-related technology. The present disclosure relates to a method and an apparatus for performing rate matching and configuring a soft buffer in a wireless cellular communication system.

Abstract: The present disclosure relates to a wireless communication system. More specifically, the present disclosure relates to: a method for transmitting a physical random access channel (PRACH) in at least one carrier from among a first carrier group on the basis of a channel sensing result, receiving a random access response (RAR) in at least one carrier from among a second carrier group in response to the transmission of the PRACH, and transmitting a physical uplink shared channel (PUSCH) on the basis of the RAR; and an apparatus therefor.

Abstract: In embodiments of systems and methods for managing control signaling for multicast communications, a base station may transmit to a wireless device an indication of whether to monitor a group common physical downlink control channel (GC PDCCH), a wireless device-specific PDCCH for multicast configuration information, or both. The base station may determine a schedule for transmitting multicast communications to the wireless device based on a capability reported by the wireless device, and may transmit to the wireless device an indication of whether a transport block for GC multicast communications including services for multicast communications will be scheduled by the GC PDCCH, the wireless device-specific PDCCH, or both. The base station may transmit, and the wireless device may receive, the multicast communications according to the multicast configuration information and the schedule.

Abstract: Provided are a method of selecting BWP and a device supporting the method. According to one embodiment of the present invention, the method includes: configuring multiple bandwidth parts (BWPs) for a cell; activating a first BWP among the multiple BWPs; acquiring information on congestion of at least one of the multiple BWPs; and switching to a second BWP among the multiple BWPs from the first BWPs, based on the acquired information on congestion.

Abstract: Aspects of the disclosure relate to determining channel state information (CSI) on a component carrier. In an example operation, a device determines a mapping between first time-frequency resources corresponding to a first component carrier (CC) and second time-frequency resources corresponding to a second CC using a prediction algorithm. The device receives, from a base station, a channel state information reference signal (CSI-RS) on the first time-frequency resources corresponding to the first CC and measures first CSI on the first time-frequency resources corresponding to the first CC based on the received CSI-RS. The device further predicts second CSI on the second time-frequency resources corresponding to the second CC based on the measured first CSI using the prediction algorithm. The device then generates a CSI report based on the predicted second CSI and sends the CSI report to the base station.

Abstract: A transmission device including a time-domain windowing processing circuit to which a transmission symbol is input and in which the transmission symbol is multiplied by a time window. As the time window, a result of pre-convolving an arbitrary filter into an arbitrary time window is used.

Abstract: A base station and a user equipment may determine whether to determine a start symbol value representing a start symbol of a physical downlink shared channel (PDSCH) on the basis of a reference point which is different from the start of a slot allocated for the PDSCH of a cell and is based on the subcarrier spacing of the cell and the subcarrier spacing of a scheduling cell for the cell. The base station/user equipment may transmit/receive, through the scheduling cell, the DCI including symbol information on the start symbol value for the PDSCH on the basis of the determination.

Abstract: For scheduling transmissions of data channels, control channels, or random access channels using downlink control information (DCI) formats, a DCI format can configure a transmission of one or multiple data channels over respective one or multiple transmission time intervals. A first DCI format can configure the parameters for a channel transmission and a second DCI format can trigger the channel transmission and indicate respective one or more transmission time intervals.

Abstract: A method performed by a BS for configuring CSI reporting is provided. The method includes transmitting a CSI reporting configuration to a UE on a first BWP; transmitting a first BWP switch indication to the UE on the first BWP, the first BWP switch indication being used to request the UE to switch to a second BWP; transmitting a second BWP switch indication to the UE after the UE switches from the first BWP to the second BWP, the second BWP switch indication being used to request the UE to switch back to the first BWP; and receiving a CSI report from the UE based on the CSI reporting configuration, without providing any CSI reporting activation command to the UE after the UE switches back to the first BWP according to the second BWP switch indication. A BS using the same is also provided.

Abstract: A transmission apparatus of the present disclosure comprises a transmission signal generator which generates a transmission signal that includes a legacy preamble, a non-legacy preamble and a data field, wherein the non-legacy preamble comprises a first signal field and a second signal field, the second signal field comprising a first channel field and a second channel field, each of the first channel field and the second channel field comprising a common field that carries resource assignment information for one or more terminal stations and a user-specific field that carries per-user allocation information for the one or more terminal stations, and wherein a part of the user-specific field of one of the first channel field and the second channel field whichever is longer than the other channel field in length before appending padding bits is relocated to the other channel field; and a transmitter which transmits the generated transmission signal.

Abstract: Aspects described herein relate to determining a congestion level related to communicating with one or more devices in a wireless network, determining, based on the congestion level, a retransmission scheme for transmitting and/or retransmitting communications in the wireless network, and transmitting or retransmitting a communication in the wireless network based on the retransmission scheme.

Abstract: A system and method of managing network bandwidth is provided, in which one or more utilization thresholds are set for an access node, wherein the access node is configured to communicate using a band consisting of a first portion corresponding to communication in a first communication mode and a second communication mode and a second portion corresponding to communication in the first communication mode but not the second communication mode; and one or more utilization parameters are monitored and compared to the corresponding utilization threshold(s). Based on the comparison, the sizes of the portions may be modified and/or wireless devices seeking to join the network may be appropriately assigned.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present invention presents a method for efficiently estimating a physical channel and, according to the present invention, a terminal of a communication system receives a synchronization signal from a base station, receives a broadcast channel from the base station, and can estimate the broadcast channel on the basis of the synchronization signal.

Abstract: An indication to schedule a first uplink channel can be transmitted, where the first uplink channel can correspond to a first transmission occasion and a first priority. An indication to schedule a second uplink channel can be transmitted, where the second uplink channel can correspond to a second transmission occasion and a second priority, where the first transmission occasion can overlap in time with the second transmission occasion and the first priority can be higher than the second priority. A particular symbol of the second uplink channel from which a transmission of the second uplink channel is cancelled by a user equipment can be determined based on the first transmission occasion overlapping in time with the second transmission occasion. A reception of the second uplink channel can be cancelled based on the determined particular symbol.

Abstract: A communications device includes a transmitter configured to transmit signals to one or more other communications devices via a wireless access interface, the one or more communications devices configured to perform device-to-device communications. A receiver is configured to receive signals from the one of the other communications devices via the wireless access interface, and a controller controls the transmitter and receiver to transmit or to receive the signals via the wireless access interface to transmit or to receive data represented by the signals. The wireless access interface provides a scheduling region including plural predetermined sections of communications resources, and plural sections of shared communications resources. Transmission of a scheduling assignment message in a section of the scheduling region informs other devices of a group that a communications device will transmit signals representing data in a corresponding section of the shared communications channel.

Abstract: Provided are a method for performing sidelink transmission by a first device (100) in a wireless communication system, and a device for supporting same. The method comprises the steps of: determining a transport block size (TBS) on the basis of whether at least one of an automatic gain control (AGC) symbol and a guard period (GP) symbol is used for sidelink transmission; and performing the sidelink transmission with respect to a second device (200) on the basis of the determined TBS, wherein the AGC symbol may be a symbol which a first device (100) uses for AGC, and the GP symbol may be a symbol which the first device (100) uses for TX/RX switching.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method of a UE is provided.

Abstract: Apparatuses, methods, and systems are disclosed for determining linked bandwidth parts. One method includes determining an identification of a bandwidth part. The method includes determining an uplink bandwidth part and a downlink bandwidth part based on the identification of the bandwidth part. The method includes using the uplink bandwidth part and the downlink bandwidth part in response to determining the uplink bandwidth part and the downlink bandwidth part.

Abstract: Certain aspects of the present disclosure propose techniques for transmission time interval (TTI) bundling for physical downlink shared channel (PDSCH) in long term evolution (LTE). According to certain aspects a method is provided for wireless communications. The method may be performed, for example, by a user equipment (UE). The method generally includes identifying a transmit time interval (TTI) bundle comprising a subset of subframes from a set of subframes for transmitting data on a physical downlink shared channel (PDSCH) and receiving the data on the PDSCH in the subset of subframes.

Abstract: Embodiments of a user equipment (UE) configured for operation in a fifth generation (5G) new radio (NR) network are disclosed herein. In some embodiments, a media access control Layer (MAC) control element (CE) (MAC CE) may activate a spatial relation info for a sounding reference signal (SRS) resource for two or more indicated component carriers (CCs). The spatial relation info for the SRS resource for the two or more indicated CCs may be applied in response to the activation. The SRS resource may be transmitted in the two or more indicated CCs with a same spatial transmission filter that is used for another reference signal configured in the spatial relation info when the UE is configured with one or more SRS resource configurations and when the spatial relation info is activated.

Abstract: Aspects described herein relate to indicating downlink control information (DCI) for multicast and/or broadcast (MB) communications using DCI formats that may be based on existing DCI formats and/or size for unicast communications, paging signals, system information signals, etc., or may include shortened formats without fields for information that may not be used in MB communications.

Abstract: Provided are a control channel sending method and apparatus, and receiving method and apparatus. The sending method comprises: a first device acquiring resource information about a first type of sending resources of a control channel; the first device determining a second type of sending resources of the control channel according to the resource information about the first type of sending resources, wherein the second type of sending resources are sending resources different from the first type of sending resources; and the first device sending, on the first type of sending resources and the second type of sending resources, the control channel to a second device. The invention solves the technical problem in the related art that the transmission efficiency of a control channel is relatively low due to the fact that a terminal applies a blind detection method to the control channel.

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for determining quasi co-location (QCL) and/or transmission configuration information (TCI) state assumption information for a dynamic control resource set (CORESET). In some cases, if certain conditions are met, a user equipment (UE) may follow QCL assumptions for a physical downlink shared channel (PDSCH) scheduled by a same PDCCH that indicated the dynamic CORESET. An example method by a UE generally includes receiving at least one downlink control information (DCI), of a first physical downlink control channel (PDCCH), that schedules at least one dynamic CORESET; and receiving a second PDCCH in the dynamic CORESET, wherein the UE is to apply at least one QCL assumption associated with a PDSCH for the at least one dynamic CORESET if one or more conditions are met.

Abstract: A method and apparatus for implementing reference signal transmissions in a wireless communication system. In one embodiment, the method includes the cell, transmission point (TP), or transmission and reception point (TRP) broadcasting a first RS periodically for measurement, wherein the first RS is transmitted at multiple occasions (or timings) in each period on different beams. The method also includes the cell, TP, or TRP transmitting a second RS to a UE for PDCCH demodulation, wherein the second RS is transmitted on multiple beams in a beam set of the UE in a subframe (or symbol) in which the PDCCH is transmitted.

Abstract: The present disclosure is directed to a method and apparatus for transmission resource selection. According to an embodiment of the present disclosure, a method includes: selecting a transmission resource for a sidelink transmission; generating an indication signaling for indicating the sidelink transmission on the selected transmission resource; and transmitting the indication signaling on a detection resource, which is a time-frequency resource prior to the selected transmission resource. Embodiments of the present disclosure solve the technical problem concerning the transmission resource selection in a V2X system.

Abstract: A signal sending and receiving method and apparatus are provided. A first signal is sent, and a sequence of the first signal is generated at least based on a first sequence and a second sequence. There are multiple manners for determining the first sequence and the second sequence. For example, the first sequence is determined at least according to start time domain location information of the first signal and current time domain location information of the first signal, and the second sequence is determined at least according to a cell index corresponding to the first signal.

Abstract: Systems and methods are provided for receiving, at an enterprise network, first authentication data of a citizens broadband radio service (CBRS)-enabled device, receiving, at the enterprise network, second authentication data of the CBRS-enabled device, the first authentication data of the CBRS-enabled device being a different type of authentication data than the second authentication data of the CBRS-enabled device, determining a class of the CBRS-enabled device based on the first authentication data and the second authentication data of the CBRS-enabled device, determining a network segment for the CBRS-enabled device based on the class of the CBRS-enabled device, and providing access to the CBRS-enabled device based on the determining of the network segment for the CBRS-enabled device.

Abstract: Embodiments includes methods performed by a user equipment, LT, to schedule a plurality of mutually-exclusive repetitive measurement activities in a wireless network. Such embodiments include receiving, from a network node serving the UE, a measurement configuration comprising: least one measurement timing configuration for each of a plurality of mutually exclusive repetitive measurement activities; and identification of a measurement gap pattern for performing the measurement activities. Such embodiments also include selecting an analysis period for a measurement schedule, and determining, over the analysis period, measurement load information related to the measurement configuration. Such embodiments also include determining, based on the measurement load information, a measurement time scaling factor and a scaled measurement time for each measurement activity. Some embodiments include determining a measurement schedule and/or performing measurements based on the scaled measurement time.

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for a base station to determine whether to perform coverage enhancement for a random access procedure and to transmit an indication to a user equipment (UE) accordingly. For example, a base station may transmit an indication of whether coverage enhancement is associated with a second random access message (e.g., a random access Message 4 (Msg4)) using a first random access message (e.g., a random access Message 2 (Msg2)). The base station may transmit, and the UE receive, the second random access message accordingly. Implementing aspects of the present disclosure may enable coverage enhancement for random access procedures in wireless communications systems.

Abstract: Various embodiments disclosed herein provide for facilitating scheduling of uplink data using demodulation reference signal and scheduled resources. According an embodiment, a system can comprise configuring a network device with a periodic rate of specified sounding reference signals with a periodicity using radio resource control signaling. The system can further facilitate estimating channel state information associated with a channel via which the network device communicates. The system can further facilitate transmitting an uplink grant with uplink transmission parameters to set up a physical uplink shared channel, wherein the uplink transmission parameters are determined based on the channel state information. The system can further facilitate estimating scheduling parameters based on a first estimation information associated with the physical uplink shared channel.

Abstract: An information indication apparatus and method and a communication system. The information indication method includes: transmitting a plurality of physical broadcast channels and a plurality of synchronization signals at a plurality of time units or a plurality of time instances within a time interval; wherein, each of the physical broadcast channels carries timing information of the time interval. Hence, even a plurality of physical broadcast channels and a plurality of synchronization signals are transmitted at a plurality of time units or a plurality of time instances within a time interval, the timing information of the time interval may be obtained with a simple structure and operation.

Abstract: Provided are a method and an apparatus for transmitting downlink control information in a wireless communication system configured with a plurality of serving cells. The method generates downlink control information scheduling frequency division duplex (FDD) cells by means of FDD frames (DCI_FDD) and downlink control information scheduling time division duplex (TDD) cells by means of TDD frames (DCI_TDD), and transmits the DCI_FDD and the DCI_TDD, wherein parts of the fields of DCI_FDD and DCI_TDD are generated to have equal bit sizes, and if the FDD or TDD cell is used exclusively, then said parts of the fields in the FDD and TDD cells have mutually different bit sizes.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure discloses a method and apparatus for coverage enhancement for physical downlink control channel in a wireless communication system.

Abstract: A terminal is disclosed including a receiver that receives downlink control information indicating a transmission bandwidth allocated to a downlink shared channel within a bandwidth part, and a processor that determines a size of a precoding resource block group (PRG), to which a same precoding is applied, based on the transmission bandwidth or a subset of the transmission bandwidth. In other aspects, a radio communication method for a terminal is also disclosed.

Abstract: A method of a user equipment (UE) operating in a wireless communication system using orthogonal subcarriers, the method including generating, by the UE, Orthogonal Frequency Division Multiplexing (OFDM)-based symbols, wherein each OFDM-based symbol includes a cyclic prefix (CP) and a data part, transmitting, by the UE, a first subframe including N OFDM-based symbols, wherein N is an integer and transmitting, by the UE, a second subframe including N OFDM-based symbols, following the first subframe, wherein, when the first subframe and the second subframe are overlapped based on a timing adjustment command received from a base station, the first subframe is transmitted completely while the second subframe is transmitted partially without an overlapped part of the second subframe.

Abstract: A process receives performance parameter measurements associated with multiple cell sectors of a group of multiple Remote Radio Units (RRUs) and determines a first set of cell sectors of the multiple cell sectors to include in a first cell sector cluster based on the measured performance parameters. The process configures connections, between the first set of cell sectors included in the first cell sector cluster and a first Baseband Unit (BBU) of multiple BBUs of a Centralized Radio Access Network (CRAN) hub, such that the first BBU processes traffic to and from the first set of cell sectors included in the first cell sector cluster.

Abstract: In a data processing method, a worker node in a distributed data processing system receives first data from an upstream worker node. The first data has been stored in a buffer of the upstream worker node. The worker node sends a first portion of the first data to a persistent storage device of the distributed data processing system for persistent backup, and performs computational processing on the first data to generate second data. Prior to completing performing computational processing on the first data, the worker node sends acknowledgement information to the upstream worker node to instruct the upstream node to delete the first data from the buffer of the upstream worker node. The worker node then sends the second data to a downstream worker node in the distributed data processing system for further processing by the downstream worker node.

Abstract: Aspects described herein relate to indicating search spaces and/or control information formats for receiving multicast/broadcast service (MBS) downlink control information (DCI). A device can receive a search space configuration defining one or more search spaces for detecting communications intended for a group of one or more user equipment (UEs), determine a priority for detecting control information transmitted over a control channel based on the one or more search spaces, and perform, based on the priority, detection for the control information over the control channel based on the one or more search spaces and/or the other defined search spaces.

Abstract: A method for processing of a data stream using a graph-based data model includes receiving a data stream including data messages; disassembling the data messages data elements and metadata; generating a structured data model comprising the set of data elements based on the type of the data elements and the pattern of the data messages; instantiating a workflow to process the structured data model; configuring a CPS-G model sub-graph to add to the CPS-G model based on the type of the data elements and the pattern of the data messages; adding the CPS-G model sub-graph to the CPS-G model to form the CPS-G dataset; and storing the CPS-G dataset including the CPS-G model sub-graph in a data store for further processing by streaming computation and machine learning algorithms.

Abstract: This disclosure relates to techniques for a wireless device to perform low latency communication using historical beam information. The wireless device may establish a radio resource control connection, and may subsequently release the resource control connection. The wireless device may store antenna element and beam information for the resource control connection. The wireless device may determine whether to use the stored antenna element and beam information when establishing another radio resource control connection. If the wireless device determines to do so, the wireless device may use the stored antenna element and beam information when establishing that radio resource control connection.

Abstract: Methods, systems, and devices for wireless communications are described. The methods, systems, and devices may enable a base station to determine an operation state for a user equipment (UE) that corresponds to how the UE applies a preemption indication. The base station may indicate the operation state to the UE using a parameter of a configuration message. The base station may transmit a grant indicating time-frequency resources scheduled for the UE. The UE may identify a priority of a channel associated with the scheduled resources. The base station may determine a number of scheduled resources to be preempted or canceled and may indicate these resources to the UE using a preemption indication. The UE may determine remaining time-frequency resources based on the preemption indication, the priority of the channels, the operation state, or a combination thereof.

Abstract: A method and apparatus for slot structure indication is disclosed. In one embodiment, a method performed by a wireless communication node, comprising: configuring at least one first SFI entry set to a wireless communication device, wherein the at least one SFI entry set contains slot structure information of at least one transmission resource; and transmitting a physical channel to a wireless communication device, wherein the physical channel comprises at least one slot format related information (SFI) field.

Abstract: A terminal apparatus includes: a measurement unit configured to measure a first radio link quality based on at least part of a plurality of reference signals and a second radio link quality based on at least part of the plurality of reference signals in a certain serving cell; and a processing unit configured to trigger a report in a case that the first radio link quality and the second radio link quality satisfy a predetermined condition.

Abstract: The present disclosure provides a method and a device in a User Equipment (UE) and a base station used for wireless communications. The UE receives first information; determines first sub-information out of the M piece(s) of sub-information; receives a first radio signal in a first time-frequency resource set; the first information comprises the M piece(s) of sub-information, each of the M piece(s) of sub-information indicates a reference signal group, and a reference signal group comprises at least one reference signal. The first sub-information indicates a first reference signal group. A reference signal in a reference signal group indicated by at least one of the M piece(s) of sub-information is transmitted by a first serving cell, and the first serving cell is not added by the UE. The above method not only obtains performance advancement brought by serving cell handover, but also avoid time delay and service interrupt.

Abstract: A computer system and associated methods are disclosed for mitigating side-channel attacks using a shared cache. The computer system includes a main memory, a shared cache and a cache controller for the shared cache including a scrambling function that scrambles addresses of memory accesses according to the respective scrambling keys selected for a sequence of time periods. Different cache tiers may implement different scrambling functions optimized to the architecture of each cache tier. Scrambling keys may be updated to reduce predictability of shared cache to memory address mappings. These updates may occur opportunistically, on demand or on specified schedule. Multiple scrambling keys may be simultaneously active during transitions between active time periods.

Abstract: There is disclosed a method of operating a signaling radio node in a radio access network, the signaling radio node being adapted for transmitting on a plurality of layers utilizing an antenna arrangement; wherein the method comprises transmitting, on each of the plurality of layers, reference signaling in the same symbol time interval, wherein reference signaling on at least a first layer of the plurality of layers is shifted in time and/or phase relative to reference signaling on at least a second layer of the plurality of layers. There are also disclosed related methods and devices.

Abstract: A communication device generates a first packet for transmission in a first frequency segment, and generates a first physical layer (PHY) preamble of the first packet to include a first field that indicates a first overall bandwidth that the first packet spans. The communication device generates a second packet for transmission in a second frequency segment, and generates a second PHY preamble of the second packet to include a second field that indicates a second overall bandwidth that the second packet spans. The communication device transmits the first packet in the first frequency segment beginning at a first time, and simultaneously transmits the second packet in the second frequency segment beginning at a second time that is different than the first time.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive information identifying an offset between a start of a frame on a first component carrier and a start of a frame on a second component carrier, wherein the first component carrier is one of a primary cell (PCell) or a secondary cell (SCell), and wherein the second component carrier is the other of the PCell or the SCell; determine that a slot on the first component carrier is aligned with a slot on the second component carrier; identify the slot on the second component carrier in accordance with the offset; and communicate on the first component carrier or the second component carrier based at least in part on the start of the slot on the second component carrier. Numerous other aspects are provided.

Abstract: A user terminal according to one aspect of the present disclosure includes: a receiving section that receives configuration information of a cell group; and a control section that controls monitoring of downlink control information (DCI) including cyclic redundancy check (CRC) bits scrambled by a certain identifier included in the configuration information in a search space configured in a cell in the cell group.

Abstract: Methods and apparatuses schedule resources and identify resource scheduling in a MU MIMO wireless communication system. A method for identifying resource scheduling for a UE includes receiving downlink control information; identifying, from the downlink control information, one or more DM-RS ports assigned to the UE and a PDSCH EPRE to DM-RS EPRE ratio; and identifying data intended for the UE in a resource block in a downlink subframe using the one or more DM-RS ports and the PDSCH EPRE to DM-RS EPRE ratio. A method for scheduling resources includes identifying one or more DM-RS ports to assign to a UE and a PDSCH EPRE to DM-RS EPRE ratio for identifying data intended for the UE in a resource block in a downlink subframe; and including an indication of the one or more DM-RS ports and the PDSCH EPRE to DM-RS EPRE ratio in downlink control information.