Abstract: Where first and second reference signals for a first and second communication system, respectively, are transmitted, resources that affect a reception apparatus compatible only with the first communication system can be minimized, and the throughput can be prevented from being deteriorated. As resources for a reference signal CSI-RS for LTE-A, last half symbols in a time direction of a resource unit RB/Sub-frame defined in a frequency-time domain are used, and the CSI-RS is allocated in a position up to the last two symbols or in the last symbol, or the like, of a particular RB/Sub-frame and transmitted when a reference signal 4RS for LTE is transmitted to a reception apparatus in addition to transmitting CSI-RS for LTE-A. The reception apparatus receives CSI-RS allocated in the last half symbol of RB/Sub-frame based on CSI-RS allocation information, measures channel quality by using this CSI-RS, and transmits and reports feedback information.

Abstract: Disclosed are an electronic device in a wireless communication system, a method, and a computer readable storage medium. The electronic device in the wireless communication system disclosed in the present invention comprises a processing circuit, being configured to: determine an area for beamforming during a specific time period; transmit information associated with the area to one or more auxiliary transmitting devices in the wireless communication system, so that the one or more auxiliary transmitting devices generate beam signals during the specific time period and transmit the beam signals to the area; and generate the beam signals simultaneously with the one or more auxiliary transmitting devices during the specific time period and transmitting the beam signals to the area. By using the electronic device, the method, and the computer readable storage medium disclosed in the present invention, a plurality of transmitting devices can simultaneously transmit beam signals to a same area.

Abstract: A method and device for transmitting information in a telecommunication system are described. A device (UE) selects which one of two or more radio access technologies (RATs) or, which one of two or more frequency bands, to use for transmission of a data signal. The device transmits the data signal using the selected RAT or frequency band.

Abstract: A terminal and base station side device, a terminal device, a base station, and a wireless communication method. The terminal side device includes a searching unit, configured to adopt a synchronization signal sequence corresponding to a target frequency range to be searched to search a target cell; and a synchronization unit, configured to perform synchronization based on the synchronization signal detected by the searching unit to synchronize the device to the target cell, the case the target frequency range belongs to a first frequency range, the searching unit adopts the synchronization signal sequence in a first subset of a synchronization signal sequence set to search the target cell, the first subset being a proper subset of the synchronization signal sequence set. Thereby, a number of synchronization signal sequence matching in a cell searching procedure is reduced and time for user equipment to synchronize to the target cell is shortened.

Abstract: Disclosed in the present disclosure are an uplink synchronization timing deviation determination method and device, for solving the problem in the prior art that a base station in an NB-IoT system has low accuracy in determining an uplink synchronization timing deviation by performing FFT and IDFT processing on a preamble sequence. The method specifically comprises: a base station receiving a preamble signal transmitted by a terminal device; determining channel estimation values of a frequency domain channel occupied for transmitting each symbol group of the preamble signal; performing, on the basis of a frequency hopping pattern used for transmitting the preamble signal, a conjugate multiplication on the channel estimation values corresponding to each symbol group to obtain a first radian value, and determining, on the basis of the first radian value, an uplink synchronization timing deviation of the terminal device.

Abstract: There is provided a method for transmitting, by a transmitter, a signal through an unlicensed band channel. The transmitter transmits an initial signal through the unlicensed band channel to preoccupy the unlicensed band channel when the unlicensed band channel is in an idle status. The transmitter includes a first partial subframe transmitted after the initial signal in a frame burst depending to transmission timing of the initial signal. Further, the transmitter transmits the frame burst through the unlicensed band channel.

Abstract: A method is provided. The method includes obtaining, by UE, signal quality of a first cell operating on a first transmission carrier frequency. When the UE determines that the signal quality of the first cell is higher than a preset threshold, and the UE receives first indication information sent by the first cell, the method includes selecting, by the UE, the first cell as a serving cell, where the first indication information indicates that the first cell can control the UE to transmit device-to-device D2D service data on a second transmission carrier frequency, and the first transmission carrier frequency and the second transmission carrier frequency are located at different frequencies.

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive data from both a source base station and a target base station during handover. For example, the UE may refrain from resetting or reestablishing media access control (MAC) and packet data convergence protocol (PDCP) layer configurations until after a successful access procedure is performed with the target base station. In some cases, a single radio link control (RLC)/PDCP stack may be used during handover procedures. A source base station may, for example, forward data to a target base station after receiving a handover execution message. A UE may identify and resolve any duplicate data sent by both base stations during the transition. Additional signaling may be used (e.g., during the radio resource control (RRC) configuration) to indicate that a UE supports dual link handover.

Abstract: Various examples with respect to synchronization signal block (SSB) raster shift in mobile communications are described. A processor of a user equipment (UE) performs an initial cell search to identify a cell among one or more cells of a wireless communication system. The processor then camps on the identified cell. In performing the initial cell search, the processor scans through a plurality of SSB entries for frequency bands below 3 GHz with a SSB raster spacing and a SSB raster offset frequency that support sub-carrier spacing (SCS) spaced channel raster and 100 kHz channel raster for both 15 kHz SCS and 30 kHz SCS. A minimum channel bandwidth at 5 MHz or higher for 15 kHz SCS or at 10 MHz or higher for 30 kHz SCS is supported. The SSB raster spacing is a common multiple of 15 kHz and 100 kHz. The SSB raster offset frequency for 100 kHz channel raster is a multiple of 30 kHz plus/minus 10 kHz.

Abstract: Provided are a signal transmitting method and apparatus, and a resource notification method and apparatus. The signal transmitting method includes: transmitting one or more random access signals. A tail end of the one or more random access signals is aligned with a t??t position of a signal transmission region in transmission resources of the one or more random access signals, t is a tail end time point of the signal transmission region and ?t is an advance. Alternatively, a transmitting start time point of the one or more random access signals is a result obtained by subtracting the length of the one or more random access signals and the advance from the tail end time point of the signal transmission region in the transmission resources.

Abstract: A mobile terminal receives, over a first cell configured on a carrier frequency, at least one parameter associated with a second cell configured on a carrier frequency. The at least one parameter comprises a cell identity. The mobile terminal then derives at least one physical layer characteristic for the second cell based on the received at least one parameter. Thereby, the mobile terminal is able to receive transmissions over the second cell, even if it could not initially detect the presence of the cell.

Abstract: A genomic update system can generate a user interface from network pages based on variant data in one or more of the network pages matching user variant data. Some of the network pages may be in an elevated or trusted class and linking pages may link to those network pages. Content from the linking pages can be included with one or more visualizations in the user interface for interaction by a user via a user device, such as a handheld mobile device.

Abstract: A method for a terminal to receive a synchronization signal is disclosed in the present invention. The method receives a message including a synchronization signal block indicator indicating one or more synchronization signal block groups including at least one transmission synchronization signal block among a plurality of synchronization signal block groups grouped by the prescribed number of candidate synchronization block positions of a synchronization signal block including a primary synchronization signal, a secondary synchronization signal, and a physical broadcast channel signal, and can receive the at least one transmission synchronization signal block based on the message.

Abstract: A mobile signal small cell aggregator system allows mobile signals from multiple network operators to be combined and split from the system. The system receives input from multiple ports from one or more network operators and operator bands and transfers the signals to a downlink/summing or aggregation unit which sends the signals to connected antennas to be received by users of the particular network operator. Signals received from connected antennas from users of one or more network operators are aggregated and switched to the appropriate small cell port and forwarded to the selected network operator. The system is configured to provide network control, power monitoring and attenuation, and a single GPS input for use by all of the connected network operators.

Abstract: Methods, systems, and devices for wireless communication are described. Some examples provide for identifying a primary synchronization signal (PSS) sequence of a synchronization subframe, determining, for the synchronization subframe, an extended synchronization signal (ESS) sequence based at least in part on the PSS sequence and transmitting the synchronization subframe. Other examples provide for generating an ESS sequence for a synchronization subframe to be communicated to a UE, scrambling the ESS sequence based at least in part on cell-specific information associated with the base station and transmitting, to the UE, the scrambled ESS sequence in the synchronization subframe.

Abstract: A network apparatus may include a memory and processing circuitry configured to receive first connection metrics of a connection with a user equipment that is using a first configuration during a first connected state; receive second connection metrics of the connection with the user equipment during a transition to a second connected state; choose a selected configuration as (i) the first configuration or (ii) a second configuration for the second connection state based on the first connection metrics and the second connection metrics; and send the selected configuration to the user equipment.

Abstract: A method for synchronizing content between a first electronic device and a second electronic device in response to an input signal, includes: (a) receiving a first synchronization signal from the first computing device that is based on the input signal being received in the first electronic device; (b) mapping the first synchronization signal to a second synchronization signal based on mapping information accessible to the second electronic device, wherein the second synchronization signal includes information not represented by the first synchronization signal; and (c) transmitting the second synchronization signal to the second electronic device for processing, wherein (i) the input signal comprises one or more sensors; (ii) the first electronic device comprises a controller that interprets the input signal to provide the first synchronization signal, and (iii) the second electronic device comprises an actuator and wherein the second synchronization signal corresponds to a command for actuation in the secon

Abstract: Disclosed is a method for transmitting, by a terminal, a synchronization signal for direct communication between terminals in a wireless communication system. In detail, the method comprises the steps of: generating a primary synchronization signal and a secondary synchronization signal for the direct communication between terminals; and transmitting the primary synchronization signal and the secondary synchronization signal, wherein the primary synchronization signal is generated on the basis of a synchronization reference cell identifier for the direct communication between terminals.

Abstract: A PDCP status report can be transmitted with reduced radio resources by transmitting the reception success or failure of a series of PDCP service data units (SDUs) in the form of a bitmap when configuring the PDCP status report. A PDCP control packet data unit (PDU) is generated to communicate a status report to a transmitting node for one or more PDCP SDUs transmitted from the transmitting node. The PDCP control PDU includes a data/control (D/C) bit field to indicate the PDCP control PDU is a control PDU, a control PDU type field to indicate a type of corresponding control information, a sequence number field to indicate a first missing PDCP SDU, and a bitmap field for a variable length bitmap. A bit in the variable length bitmap indicates whether a corresponding one of the one or more PDCP SDUs has been successfully been received.

Abstract: Systems and methods are provided for implementing a coexistence coordinator in an access point (AP) operating in a Internet of Things (IoT) network. The coexistence coordinator coordinates transmission of both IoT-related data from an IoT radio and WiFi data from a WiFi radio, the IoT radio and the WiFi radio coexisting in the AP. The coexistence coordinator synchronizes time between the WiFi radio and the IoT radio so that times during which IoT-related data is to be sent from the IoT radio (in accordance with Time-Division Multiple Access (TDMA) channel access method) can be determined. Operation of the WiFi radio is suspended during those times when the IoT-related data is transmitted from the IoT radio.

Abstract: Methods and systems may be used to synchronize time across multiple IoT related entities, such as a network of resource constrained sensor and actuator type devices, IoT gateways, IoT cloud services, or IoT applications.

Abstract: Embodiments of the present disclosure provide a method and apparatus for transmitting a D2D discovery signal and a communication system. The method for transmitting includes: a UE selects a part of resources from a resource pool for transmitting a D2D discovery signal; the part of resources are selected in a manner of limiting number of times of transmission, or in a manner of limiting time interval, or in a manner of calculating a resource position; and transmits the D2D discovery signal by using the selected part of resources. With the embodiments of the present disclosure, malignant competitions may be avoided, resource utilization may be improved, and probabilities of undiscovery between UEs may be lowered; or detection may performed accurately, and complexity of a UE may be lowered.

Abstract: A first wireless communication device belongs to a first of multiple groups of wireless communication devices. Devices in any given group are synchronized to the same timing reference and devices in different groups are not synchronized to the same timing reference. The first device receives a message that indicates, for each of one or more of the groups, a range of possible values for misalignment between the timing reference of that group and a common timing reference. The range accounts for uncertainty in that misalignment. The first device determines, based on the one or more ranges, intervals of times during which direct control signaling is expected to be received at the first device from one or more devices in one or more other groups. The first device then adjusts intervals of times during which it is configured to operate in an awake state to narrowly encompass the intervals of times during which the direct control signaling is expected to be received.

Abstract: In a communication system, a plurality of base stations includes an MeNB being a first base station, and a plurality of SeNBs to be connected to the MeNB. At least one of control plane data about control of communication and user plane data about a user is transmitted to and received from a user equipment (UE) via the first base station being the MeNB. The control plane data and the user plane data are contained in information provided by a core network about communication with the UE. The communication system can simplify processing of at least one of control plane data and user plane data when a communication terminal device communicates with a plurality of base station devices.

Abstract: Physical layer structures and access schemes for use in such networks are described and in particular initial access channel (IACH) structures are proposed. A spectrum efficient downlink (DL) IACH design supports different types of User Equipment (UE) capabilities and different system bandwidths. An IACH includes the synchronization channel (SCH) and broadcast-control channel (BCH). A non-uniform SCH for all system bandwidths is provided, as well as scalable bandwidth BCH depending on system bandwidth. An initial access procedure is provided, as well as an access procedure.

Abstract: The present application relates to the field of communications technologies, and provides an inter-small cell handover method, a device, and a system. When UE is in a coverage hole of a serving small cell, the UE needs to perform synchronous measurement only on each available beam pair in a set of available small cells determined by the UE, thereby reducing a delay of re-accessing a high frequency network by the UE, and improving QoS of receiving a high frequency service by the UE. the present application includes: performing, by UE, synchronous measurement, to determine a set of small cells available for the UE; sending the set of available small cells to a macro base station; when the UE is in a coverage hole of a current serving small cell, receiving, by the UE, a first synchronization indication sent by the macro base station.

Abstract: Embodiments of the present disclosure provide a cell discovery and measurement method, a base station and UE. The cell discovery and measurement method includes: a cell base station transmits a discovery signal enabling the cell to be discovered by a UE, and enables the UE to achieve synchronization with the cell base station; and transmits a measurement signal after transmitting the discovery signal. Through the embodiments of the present disclosure, the time for transmitting the discovery signal for a single time can be made as short as possible, an interval between two times of transmitting the discovery signals can be made as long as possible, and the measurement signal is only transmitted in need, thereby making the cell as energy-saving as possible; and the UE can accurately perform RRM measurement by measuring the signal, thereby increasing precision of the RRM measurement.

Abstract: Embodiments of the present invention provide a synchronization method, user equipment, and a base station. The synchronization method includes: obtaining, by user equipment, synchronization information, where the synchronization information includes at least one of the following information: synchronization source selection parameter information, synchronization source indication information, or synchronization source priority information; receiving, by the user equipment, a first synchronization signal sent by at least one synchronization source; and determining, by the user equipment, a synchronization reference source according to the synchronization information and the first synchronization information.

Abstract: An information processing apparatus includes a first transceiver configured to establish synchronous communication with each of a first apparatus and a second apparatus under a first wireless communication standard, and a second transceiver configured to communicate with a third apparatus under a second wireless communication standard, and a control circuit. The control circuit is configured to perform timing adjustment processing for adjusting, for providing a period of communication by the second transceiver, at least any one of timing of synchronous communication with the first apparatus and timing of synchronous communication with the second apparatus such that a time point of end of synchronous communication with the first apparatus by the first transceiver is substantially continuous to a time point of start of synchronous communication with the second apparatus by the first transceiver.

Abstract: Disclosed are a method and device for signal detection. The method comprises: a terminal receives system configuration information of a second transmission point sent by a first transmission point; the terminal performs downlink signal detection on the second transmission point according to the system configuration information of the second transmission point. The terminal in embodiments of the present invention can obtain the system configuration information of the second transmission point from the first transmission point, thereby reducing the complexity of signal detection on the second transmission point by the terminal.

Abstract: The present disclosure relates to a method for operating a Discontinuous Reception, DRX, function at a user equipment. The UE is configured with at least one licensed cell and at least one unlicensed cell and operates the DRX function. The UE receives, from a radio base station, a DRX-active instruction to be in DRX Active Time at least on the unlicensed cell until receiving the next downlink control information related to a downlink data transmission to be received via the unlicensed cell. Correspondingly, in response to the received DRX-active instruction, the UE is in DRX Active Time at least on the unlicensed cell, comprising continuously monitoring a downlink control channel for downlink control information.

Abstract: There is provided a fast paging procedure in which a master device repeatedly sends the paging message to a slave device using predetermined channel frequencies, wherein a selection of the predetermined channel frequencies is not calculated or predicted from the slave's Bluetooth device address. When the master device receives a slave page response message at one frequency among the predetermined channel frequencies, the master device transmits an FHS packet to the slave device at the same frequency in which the slave page response message was received.

Abstract: In some embodiments a transceiver is configured to wirelessly transfer data between a host computing device and one or more peripheral devices over a communication path using a communication data construct comprising a packet structure arranged in a repetitive communication structure. The repetitive communication structure can include a transmit time window within which the host transmits data to the one or more connected peripheral devices and a receive time window within which the host receives data from the one or more connected peripheral devices. A duration of the receive time window is set based on a predetermined communication report rate between the host computing device and the one or more connected peripheral devices. A new peripheral device is added as a connected peripheral device when the new peripheral device transmits a request to the host to be added as a connected peripheral device and the receive time window has time available to add the new peripheral device.

Abstract: An information processing apparatus includes an acquisition unit, a memory, and a setting unit. The acquisition unit acquires position information indicating a position of the information processing apparatus by performing communication with an external apparatus at a set time interval. The memory stores information about time intervals for respective regions. The setting unit changes and sets the time interval at which the acquisition unit performs communication to a time interval among the time intervals that is acquired by referring to content of the memory and that corresponds to a region corresponding to the position information among the regions.

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for determining to not transmit a portion of a second signal that overlaps in time with a first signal. A user equipment (UE) may identify a first signal to be communicated during a first time duration using a first beam pair link (BPL) and identify a second signal that is scheduled to be communicated during a second time duration using a second BPL. The UE may identify a misalignment between timing advance values for the BPLs, the misalignment causing an overlap in time between the first signal scheduled during the first time duration and the second signal scheduled during the second time duration. The UE may determine whether to drop part of the second signal and communicate the first signal and a remaining portion of the second signal based at least in part on the determining.

Abstract: An apparatus implements methods for random access in a wireless communication system using beamforming. A Subscriber Station (SS) measures a best downlink transmission beam among downlink transmission beams transmitted from a Base Station (BS), and transmits Random Access Channel (RACH) information, which includes indication information indicating the best downlink transmission beam, to the BS. The BS receives RACH information which includes indication information indicating a best downlink transmission beam among downlink transmission beams, and detects an RACH sequence and the best downlink transmission beam from the received RACH information.

Abstract: The present embodiments relate to a method for configuring a cyclic prefix for a next generation/5G radio access network (referred to as new radio (NR)) about which 3GPP has begun discussions. According to the present embodiments, a base station configures cyclic prefix (CP) lengths for secondary numerology except for reference numerology and sets, through RRC signaling, the values of the CP lengths configured for the secondary numerology, thereby enabling a terminal to detect the CP lengths for the secondary numerology in a cell supporting mixed numerology.

Abstract: The present disclosure relates to a network node, a network control node, a wireless device and corresponding methods for optimized broadcasting of system information messages in a wireless network. The disclosure proposes a method, performed in a wireless device, of assessing system information perception capability in a wireless network that is arranged to broadcast system information on at least two frequency carriers. The method comprises receiving (S10) broadcasted system information on the at least two frequency carriers. The method also comprises determining (S12), using the received broadcasted system information, frequency carrier identity correlated information for each of the at least two frequency carriers. The method further comprises reporting (S14) receipt of the broadcasted system information on the at least two frequency carriers, wherein the report includes the frequency carrier identity correlated information.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a client device may receive a discovery signal from a host device; determine whether to use a receive timing from the host device, an internal timing of the client device, or a combination of the receive timing and the internal timing to configure a reference timing; configure the reference timing, for transmission of a response to the discovery signal, using the receive timing from the host device, the internal timing of the client device, or the combination of the receive timing and the internal timing based at least in part on the determination of whether to use the receive timing, the internal timing, or the combination of the receive timing and the internal timing; and transmit the response to the host device using the configured reference timing. Numerous other aspects are provided.

Abstract: A wireless communication node includes a receiving portion configured to detect, over a wireless communication channel, a request to send (RTS) message from a transmitting station within a communication vicinity of the wireless communication node. The RTS message includes at least one duration field. The wireless communication node further includes a processor configured to (i) calculate an estimated time parameter, (ii) add the estimated time parameter to a current timestamp of the wireless communication node, and (iii) form a control packet from the RTS message, the at least one duration field, and the estimated time parameter. The wireless communication node further includes a transmitting portion configured to transmit over the wireless communication channel (i) a clear to send (CTS) message the transmitting station, and (ii) the control packet to a modem in operable communication with the wireless communication channel.

Abstract: A method and device for adjusting a channel precoding matrix for one or more users operating in a virtualized Massive Multi-Input Multi-Output (M-MIMO) wireless network managed by a neutral host. Each of the users receive wireless services from one or more service providers (SP). For each service provider, a set of N antennas are selected from all available antennas managed by the neutral host. Channel information for each user of each service provider is obtained. A precoding matrix from each SP is defined according to each SP channel and state information. If all channel state information (CSI) parameters are known, and if the CSI parameters are all known, a final precoding matrix based on the known CSI is derived, whereas if only a subset of CSI parameters are known, a final precoding matrix based on the known subset CSI parameters is derived.

Abstract: Various aspects of the disclosure relate to distributed multiple-input multiple-output (MIMO) communication such as coordinated beamforming or Joint MIMO. In some aspects, distributed MIMO is used to support communication in a cluster of wireless nodes (e.g., access points). A distributed MIMO scheduling scheme as taught herein is used to determine each wireless node (e.g., station) in the cluster that needs to be nulled by another wireless node (e.g., an access point). For example, one of the wireless nodes may obtain signal measurement information from the other wireless nodes and thereby generate a list of wireless nodes (e.g., access points) that need to null one or more wireless nodes (e.g., stations).

Abstract: A mixed-reality system causes a magnetic transmission device to transmit a magnetic field signal. The mixed-reality system also causes a magnetic-field sensing device to determine a measurement of the magnetic field signal. The mixed-reality system then identifies, using one or more input devices, that a magnetically-interfering object is located within a same environment as both the magnetic transmission device and the magnetic-field sensing device. The mixed-reality system also determines one or more characteristics of magnetic field interference that the magnetically-interfering object is imparting on the magnetic transmission device or the magnetic-field sensing device. The mixed-reality system then computes an adjustment to a pose-estimation model based upon the one or more characteristics of magnetic field interference. The pose-estimation model is used to calculate a pose of at least one of the magnetic transmission device or the magnetic-field sensing device.

Abstract: A Bluetooth device with a host system and a controller is disclosed. The host system supports a host stack of a Bluetooth protocol, and the controller supports a controller stack of the Bluetooth protocol. The device includes an interface for receiving, at the controller, a piconet-synchronized signal. The device also includes an interface for providing, by the controller to the host system, a derivative of the piconet-synchronized signal. The device also includes a circuit for determining a latency of the providing. The device also includes a circuit for synchronizing, at the host system of the Bluetooth device, a host clock with a timing reference of a master device of the Bluetooth piconet using said latency and the derivative of the piconet-synchronized signal.

Abstract: The present invention relates to wireless localization method and apparatus of high accuracy, and measures strength of at least one signal that is transmitted from at least one fixed node, estimates a relative position of a moving node, generates a change pattern of at least one signal strength according to relative changes in positions of the moving node over a plurality of time points from at least one signal strength and the relative position of the moving node, and estimates an absolute position of the moving node, based on a comparison between the change pattern of the at least one signal strength and a map of a distribution pattern shape of signal strength in a region where the moving node is located. Accordingly, it is possible to accurately estimate a position of a moving node using a radio signal which not only accurately estimates the position of the moving node even in a change of wireless environment but also has almost no change in signal strength over a wide region.

Abstract: A communication system includes a plurality of communication stations arranged to respectively transmit a beacon on which beacon time information related to a beacon received from a peripheral communication station is placed at a predetermined transmission interval and control a beacon transmission timing of its own station while a collision with the beacon transmitted from the peripheral communication station is avoided on the basis of beacon information placed on the received beacon, in which at least a part of the communication stations includes means configured to decide a priority with respect to beacons received from at least one peripheral communication station and means configured to place beacon time information of a beacon having a high priority among the received beacons on a beacon of its own station, and transmits the beacon at a predetermined transmission interval.

Abstract: The solution presented herein controls a transmission timing of data from multiple transmission points to synchronize the data reception at a receiver to within pre-specified limits. To that end, a skew timing is determined from a difference between a second delay (a transmission time between the master node and a second slave node) and a first delay (a transmission time between a master node and a first slave node). A deadzone mapping is applied to the initial liming error (determined from a difference between a reference skew timing and the skew timing) to determine a final timing error. The deadzone mapping is configured to adjust the initial timing error responsive to a comparison between the initial timing error and a timing error range. The first and second delays are controlled using the final timing error to keep the skew timing within the timing error range.

Abstract: Some techniques and apparatuses described herein provide synchronization signal numerology, coverage extension/repetition schemes, and synchronization signal burst set periodicities for 5G IoT user equipment (UEs). For example, some techniques and apparatuses described herein provide a sequence of slots and/or particular symbols within a slot for transmission of a synchronization signal and/or a broadcast channel. Furthermore, some techniques and apparatuses described herein define minimum bandwidths of IoT UEs in relation to non-IoT UEs, and define synchronization signal burst set periodicities that may be different for IoT UEs than for non-IoT UEs.

Abstract: Provided are a method for receiving an on-demand system information (OSI) block by a terminal in a wireless communication system and an apparatus for supporting the same. The method may comprise the steps of: receiving, from a network, an on-demand system information (OSI) configuration including information on mapping between the OSI block and information on a system information request (SIR) preamble; determining an OSI block of interest; selecting an SIR preamble corresponding to the OSI block of interest on the basis of the OSI configuration; transmitting the selected SIR preamble to a serving cell so as to request the determined OSI block of interest; and receiving the requested OSI block of interest.

Abstract: Provided are a method for transreceiving a beam reference signal or a beam refinement reference signal and transreceiving feedback information for same between a terminal and a base station in an ultra-high frequency mobile communication system, and to an apparatus for same. The method may include identifying a preferable symbol based on reference signal received power or reference signal received quality in a subframe in which the beam reference signal is received and transmitting radio resource management information or channel status information for an antenna port or an antenna array to the base station with respect to the preferable symbol.