Abstract: Provided are a base station apparatus, a terminal apparatus, and a communication method that achieve a radio access network capable of being flexibly compatible with various requirements. The base station apparatus according to an aspect of the present invention includes a transmission unit configured to generate a transmit signal based on a frame format in which a radio parameter is configurable, and configured to notify the terminal apparatus of information indicating the radio parameter configured in the frame format. The terminal apparatus according to an aspect of the present invention includes a reception unit configured to acquire information indicating a radio parameter configured in a frame format, and configured to demodulate a signal generated based on the frame format, based on the radio parameter.

Abstract: A method by a user equipment (UE) is described. The method includes receiving by the RRC entity of the UE, a PUCCH release request from a lower layer of the UE, and applying the default physical channel configuration for a scheduling request configuration for a concerned secondary cell, upon receiving the PUCCH release request from the lower layers of the UE. The PUCCH release request is notified by a Medium Access Control (MAC) entity of the UE in a case that a time alignment timer expires, the time alignment timer is associated with a secondary timing advance group (sTAG) and the concerned secondary cell belongs to the sTAG.

Abstract: A communication device and a method for Orthogonal Frequency Division Multiplexing (OFDM) configured to receive a signal from a second device; perform a channel estimation on the signal, wherein the channel estimation comprises determining a channel path gain, a channel path delay, and at least one of a channel path angle of arrival (AoA) or a channel path angle of departure (AoD); determine an optimal analog beamforming direction based on the channel estimation; and communicating the data using the analog beamforming.

Abstract: An apparatus or method for transmitting data blocks on a communications channel having a radio link between two stations including a user equipment comprises receiving first data blocks from the user equipment, and transmitting second data blocks to the user equipment. A polling interval is dynamically set for the transmission of polling messages to the user equipment after transmission of the second data blocks, the polling interval being set in accordance with at least one of: a size of one or more data blocks received by the apparatus from the user equipment, a size of one or more blocks transmitted from the apparatus to the user equipment, and a service to which the user equipment is subscribed. The apparatus may be used as a PCU in a cellular mobile telephone system.

Abstract: A node in network is configured to buffer data received from other nodes across multiple channels. The node process a portion of the buffered data associated with a subset of those channels. When the node receives data on that subset of channels that includes a notification, the node then processes a larger portion of the buffered data associated with a larger number of channels. In doing so, the node may identify additional notifications include within data that was buffered but not previously processed. The node may also coordinate with other nodes in order to process buffered data upon identification of a notification.

Abstract: A method and device for hosting an application by an access node which provides network access to a terminal in a mobile communication system are provided. The method includes receiving a request packet for a service request from a user application of a mobile terminal, delivering the request packet to an application included in the access node, if a destination of the request packet corresponds to the application of the access node, providing a service to the user application of the mobile terminal through the application, and delivering the request packet to a corresponding public application on an external network, if the application corresponding to the destination of the request packet does not exist in the access node.

Abstract: A method of configuring downlink timings and transmitting a random access response message is provided for a random access procedure in a Long Term Evolution (LTE) system supporting carrier aggregation. The method for adjusting timing of a terminal in a wireless communication system supporting carrier aggregation of at least one carrier includes transmitting a Random Access Preamble to a base station, and receiving a Random Access Response with a Timing Advance Command (TAC) for commanding uplink timing adjustment from the base station, wherein the Random Access Response comprises information indicating a Timing Advance Group (TAG) to which the TAC is applied.

Abstract: In an embodiment, a video stream synchronization request is sent to a network side device; a video stream playback position synchronization parameter sent by the network side device is received, where the video stream playback position synchronization parameter includes a playback position parameter at a video stream sending moment and a system frame number (SFN) at the video stream sending moment; an SFN at a video stream receiving moment is acquired; and the playback position parameter at the video stream sending moment is adjusted according to the SFN at the video stream sending moment and the SFN at the video stream receiving moment, so as to coincide with a current playback position parameter of the network side device.

Abstract: A first communication device generates a physical layer (PHY) preamble of a PHY data unit. A signal field of the PHY preamble includes i) a common block of information bits having information for multiple second communication devices and ii) a plurality of user blocks of information bits, each user block having information for a respective one of the multiple second communication devices. The common block includes a frequency resource unit allocation field that defines a plurality of frequency resource units corresponding to a PHY payload of the PHY data unit. The user blocks respectively correspond to frequency resource units defined by the frequency resource unit allocation field. Each user block includes an indication of a modulation and coding scheme (MCS) used in the corresponding frequency resource unit. Each group of two user blocks is encoded as a respective second encoded block to allow the multiple second communication devices to efficiently decode the signal field.

Abstract: In embodiments, a UE may measure system frame number (SFN)/subframe timing differences between a master eNB (MeNB) and secondary eNB (SeNB) for dual connectivity (DC). When network-based reporting on the SFN/subframe timing offset is used, no new radio access network (RAN) signaling may be needed. However, in the case of multi-vendor deployments, no network coordination via different Operations, Administration, and Maintenance (OAM) for DC may occur. In this case, the network may not be able to obtain SFN/subframe timing offset information. To address this issue, various embodiments disclosed herein include UE-based reporting on SFN/subframe offset between an MeNB and an SeNB.

Abstract: A user equipment (UE) of re-organizing a timing advance group (TAG) is provided. The UE includes: a receiving unit for receiving, from a serving base station, secondary serving cell (SCell) configuration information which includes a first field and a second field, the first field including an ScellIndex of an SCell to indicate a removal of the SCell, the second field including at least one of the ScellIndex to indicate an addition of the SCell and a TAG ID indicating a TAG of the SCell, and a radio resource control (RRC) processing unit for performing the addition of the SCell after performing the removal of the SCell from one or more SCells configured in the UE, and for reorganizing the TAG by including the SCell in the TAG.

Abstract: Methods for time synchronization among communication nodes in a vehicle network are disclosed. An operation method of a first communication node includes: transmitting a first frame requesting verification of time synchronization to a second communication node; receiving a second frame including information indicating a link delay time of the second communication node from the second communication node; receiving a third frame including information indicating a transmission time of the second frame from the second communication node; and verifying time synchronization between the first and second communication nodes based on the information included in the received second and third frames.

Abstract: Systems and methods relating to an unacknowledged connection release in a cellular communications network are disclosed. In some embodiments, a method of operation of a base station in a cellular communications network comprises sending a connection release message to a wireless device that is in an Out-of-Sync (OOS) state and releasing a connection with the wireless device without receiving, from the wireless device, an acknowledgement of receipt of the connection release message. In this manner, signaling overhead for releasing the connection of the wireless device that is in OOS state is substantially reduced.

Abstract: One embodiment of the present invention relates to a method for a terminal transmitting a message in a wireless communication system, comprising the steps of: generating a message; and transmitting, from a resource sectioned on a time axis, control information for the message and the message when the size of the message is larger than a predetermine value, and transmitting, from a resource sectioned on a frequency axis, the control information for the message and the message when the size of the message is smaller than the predetermined value.

Abstract: A data transmission method and a data transmission device for a TDD system are provided, so as to reduce the frequency hopping operations, reduce the retuning time, prolong a valid duration for the data transmission and reduce the time period for the data transmission, and reduce the power consumption. The data transmission method includes steps of: at a predetermined retuning start time point, adjusting, by a UE, a carrier frequency for data reception and transmission within a predetermined retuning duration so as to acquire the adjusted carrier frequency; and performing, by the UE, uplink data transmission and downlink data reception at the adjusted carrier frequency with a network device within a consecutive duration in accordance with a TDD uplink-downlink configuration. The consecutive duration is a duration from a current retuning end time point to a next retuning start time point.

Abstract: In some embodiments, one or more wireless stations operate to configure direct communication with neighboring mobile stations, e.g., direct communication between the wireless stations without utilizing an intermediate access point. Embodiments of the disclosure relate to a mechanism for a device to request synchronization assistance from one or more neighboring peer devices.

Abstract: A method by a user equipment (UE) is described. The method includes receiving, an evolved Node B (eNB) a RRC message including a parameter related to a SR periodicity for a secondary cell and a parameter related to a SR prohibit timer; and setting the SR prohibit timer based on the SR periodicity for the secondary cell. Setting the SR prohibit timer may be further based on the SR periodicity for the primary cell.

Abstract: The prevent invention relates to a method and apparatus for transmitting and receiving data. The method for receiving control data by a terminal can include the steps of: a terminal receiving redundant information on a first control channel from a base station; the terminal receiving a first subframe from the base station and first blind decoding being performed on the first subframe in order to monitor the first control channel; the terminal receiving a second subframe from the base station and second blind decoding being performed on the second subframe on the basis of the redundant information and the first blind decoding information in order to monitor a second control channel.

Abstract: The present disclosure provides a method and a device in a User Equipment (UE) and a base station used for wireless communication. The UE transmits K bit blocks, wherein if the number of idle bits on a first physical layer channel is not less than Q before the K bit blocks are placed on the first physical layer channel, the K bit blocks are transmitted on the first physical layer channel; otherwise, the K bit blocks are transmitted on K physical layer channels respectively; the K physical layer channels belong to K serving cells respectively, or, the K physical layer channels belong to one serving cell and time-domain resources occupied by any two of the K physical layer channels are orthogonal; the K bit blocks together are used for determining first information.

Abstract: The present application discloses a method whereby user equipment receives signals from a base station via a first carrier and a second carrier in a wireless communication system. More specifically, the method comprises the steps of: receiving a downlink control channel on the first carrier; and receiving at least one downlink data channel on the first and second carriers on the basis of the downlink control information, wherein the first carrier is for use as a downlink, the second carrier is for use as an uplink or a downlink, and the downlink control channel includes information regarding the use of the second carrier.

Abstract: A technique may include receiving, by a user device in a wireless network, an indication of a set of uplink time-frequency resources to be used for an uplink transmission from the user device to both a master cell and a slave cell, determining, by the user device, a timing advance associated with the master cell, and performing a single transmission, by the user device, of a block of data to both of the master cell and the slave cell via the set of uplink time-frequency resources using the timing advance associated with the master cell.

Abstract: Enhanced beam management for a wireless communication system is provided. In one example, a method comprises: receiving, from a mobile device, a message indicating first beam information for a selected first beam of beams associated with the base station device, wherein the message is a first received message of a random access channel procedure; and receiving, from the mobile device, message indicating second beam information for a selected second beam of the beams associated with the base station device, wherein the selected second beam is an alternative to the selected first beam for transmission of downlink data to the mobile device from the base station device, and wherein the second beam is indicated in the first message of a two-step random access channel procedure. Methods of signaling the second beam and/or transmission diversity approaches employing the first beam and/or the second beam are described.

Abstract: In order that a user terminal properly performs communication even when a plurality of TTIs with different time lengths is present, a user terminal of the present invention transmits an uplink shared channel in a normal TTI and/or a shortened TTI including the smaller number of symbols than the normal TTI. The user terminal controls transmission power of the uplink shared channel based on an individual parameter individually set according to a TTI length for transmitting the uplink shared channel.

Abstract: A method and apparatus are disclosed for requesting resources in a wireless communication system. The method includes sending a first SA in a first SA period at a first timing. The method also includes considering a data available in the UE at a second timing, wherein the data needs to be transmitted and the second timing is later than the first timing. The method further includes skipping a resource associated with the first SA for sending the data at a third timing, wherein the third timing is later than the second timing and earlier than a second SA period which is later than the first SA period. In addition, the method includes sending a second SA in the second SA period. Furthermore, the method includes sending the data on a resource associated with the SA.

Abstract: A mobile station apparatus that transmits a physical uplink control channel and computes a transmit power for a physical uplink control channel transmission in a subframe based on a physical uplink control channel format for the physical uplink control channel transmission in the subframe. The mobile station apparatus assumes that the transmit power for the physical uplink control channel transmission in the subframe is computed based on a predefined physical uplink control channel format in a case that the mobile station apparatus does not transmit the physical uplink control channel in the subframe.

Abstract: This disclosure relates to TTI bundling for downlink communication. According to one embodiment, a base station and a wireless device may establish a wireless communication link. The base station may determine to enable TTI bundling for downlink communication for at least one carrier of the wireless communication link. The base station may provide an indication to the wireless device to enable TTI bundling for downlink communication for the determined carrier(s) of the wireless communication link. The base station may subsequently transmit TTI bundle downlink communications to the wireless device via the determined carrier(s).

Abstract: A signal processing device of a base station being connected to one or more wireless devices of the base station is provided. The signal processing device includes a memory and a processor configured to transmit wireless device setting information to the one or more wireless devices via a front-haul interface during a predetermined time frame, transmit a downlink packet, which is obtained by packetizing downlink baseband data, to the one or more wireless devices via the front-haul interface, receive an uplink packet through the front-haul interface, obtain uplink baseband data and inherent control information by performing uplink packetization on the received uplink packet, and process the uplink baseband data based on analysis of the obtained inherent control information.

Abstract: Embodiments of the present disclosure provide a method at a communications device of a first type that is operable on both a licensed carrier and an unlicensed carrier. The method comprises performing channel sensing on the unlicensed carrier, at different sensing slots within a time duration, for respective links directed to at least two communications devices of a second type that are operable on both the licensed carrier and the unlicensed carrier. The time duration is specified as a portion of a subframe in a frame structure used on the licensed carrier. The method also comprise scheduling transmission on a channel that is determined to be available based on corresponding channel sensing. Correspondingly, there is also provided an apparatus embodied at or as at least part of a communications device of a first type, e.g. a base station that is operable on both a licensed carrier and an unlicensed carrier.

Abstract: The present disclosure provides a method for reporting channel state information (CSI), a first set of channel state information-reference signals (CSI-RSs) sent from a base station is measured to obtain a first set of CSI, and the first set of CSI obtained is reported to the base station. A second set of CSI-RSs sent from the base station is measured based on the first set of CSI to obtain a second set of CSI, and the second set of CSI obtained is reported to the base station, in which the second set of CSI-RSs is precoded CSI-RSs determined based on the first set of CSI.

Abstract: Methods, apparatus, systems and articles of manufacture to transfer a data set via parallel communications are disclosed herein. Example methods include controlling the distribution of portions of a field data set to a network access point via a plurality of parallel communication sessions established by respective ones of a plurality of communication devices with the network access point. Example methods also include comparing a first value based on a respective data transfer rate of a first one of the communication sessions to a second value based on a respective data transfer rate of a second one of the communication sessions to determine whether to establish a new communication session with a third one of the plurality of communication devices. In response to determining to establish a new communication session, a processor instructs a third one of the communication devices to establish the new communication session to transmit a respective portion of the field data set to the network access point.

Abstract: Methods and systems are disclosed for performing contention based uplink (UL) orthogonal frequency division multiple access (OFDMA). The method may include receiving, from an access point using a channel, a first signal including an indication of a first time and a plurality of sub-channels of the channel. The method may include modifying a counter value in response to determining that the first time has been reached. The method may include selecting a sub-channel of the plurality of sub-channels in response to determining the counter value is equal to a threshold value. The method may include transmitting a second signal to the access point using the sub-channel. The methods and systems disclosed herein may be used by stations to associate with the access point.

Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for performing a LCP procedure in a carrier aggregation, the method comprising: configuring with a first cell group including at least one first cell and a second cell group including at least one second cell served by an eNB; configuring a plurality of logical channels, wherein each logical channel of the plurality of logical channels respectively corresponds to one of a first type logical channel that cannot be transmitted to the second cell and a second type logical channel that can be transmitted to the second cell; receiving a uplink grant for the first cell or the second cell; performing a Logical Channel Prioritization (LCP) procedure.

Abstract: Provided are a method and an apparatus for transmitting, on the basis of a repeating pattern, a synchronization signal in a wireless communication system. A base station divides a cell into multiple sectors and transmits multiple types of synchronization signals, which respectively correspond to the multiple sectors and have different repeating patterns, to a terminal through a system frame. The terminal performs detection of the multiple types of synchronization signals having the different repeating patterns and determines the position of the terminal within the cell according to the detected synchronization signals.

Abstract: A method of configuring downlink timings and transmitting a random access response message is provided for a random access procedure in a Long Term Evolution (LTE) system supporting carrier aggregation. The method for adjusting timing of a terminal in a wireless communication system supporting carrier aggregation of at least one carrier includes transmitting a Random Access Preamble to a base station, and receiving a Random Access Response with a Timing Advance Command (TAC) for commanding uplink timing adjustment from the base station, wherein the Random Access Response comprises information indicating a Timing Advance Group (TAG) to which the TAC is applied.

Abstract: A mobile station UE according to the present invention includes: a managing unit 11 configured to manage one or multiple TAGs each including any of a Pcell and an Scell; an adjusting unit 12 configured to adjust the transmission timings of uplink signals in any of the Pcell and the Scell belonging to the same TAG such that the transmission timings will be the same; and a transmitting unit 13 configured to notify a radio base station eNB of the supportable number of TAGs.

Abstract: A method includes determining a type of a first subframe, where the type of the first subframe is a first-type subframe, a second-type subframe, a third-type subframe, or a fourth-type subframe, where the second-type subframe includes an uplink control channel and a downlink channel, the uplink control channel is located after the downlink channel, and there is a guard period between the uplink control channel and the downlink channel. The fourth-type subframe includes an uplink channel and a downlink control channel, the uplink channel is located after the downlink control channel, and there is a guard period between the uplink channel and the downlink control channel. The method also includes transmitting data in the first subframe according to the type of the first subframe.

Abstract: A UE configured to transmit, to an eNB 200, scheduling requests for requesting a PUSCH resource, by using a PUCCH resource, transmits, among the scheduling requests, a second scheduling request different from a first scheduling request. As the PUCCH resource for the transmission of the second scheduling request, a periodic PUCCH resource is configured. As the PUCCH resource for the transmission of the second scheduling request, an aperiodic PUCCH resource is configured.

Abstract: Wireless communication devices capable of both wireless local area network (WLAN) and Bluetooth (BT) network communication, and related methods, are provided. In some implementations, the BT network includes a plurality of BT connections. One wireless communication device is configured to determine an aggregated time schedule for the plurality of BT connections and determine a WLAN schedule based on the aggregated time schedule. The device is configured to remap a BT scan schedule based on a WLAN traffic type, a selected duty cycle of the BT connection, and a remapping window.

Abstract: A network for an aircraft including a data line and network access devices, a first interface and at least one second interface and connected to the data line via the first interface. Identifiers are assigned to the second interfaces in pairs. The access devices receive and/or transmit data in first data frames having a fixed format and first portion and second portions. The network access devices transmit second data frames and, for each second interface, a sequence of third data frames received on the second interfaces, the network access device including a first processing unit to insert the second data frames in the first portion of the first data frames, split each third data frame into fragment frames, including a part of the respective third data frame and reassembly information allowing regeneration of the third data frame from the fragment frames, and insert the fragment frames into the second portions.

Abstract: Embodiments of the present disclosure provide examples of D2D resource allocation methods, devices, and systems. One example method includes receiving, by first UE, a first message sent by second UE, where the first message is used to request to allocate a resource to the second UE, the first UE is UE in a network coverage area of a base station, and the second UE is UE out of the network coverage area of the base station. Resource indication information of a first resource allocated to the second UE is obtained by the first UE according to the first message. A second message is sent by the first UE to the second UE, where the second message carries the resource indication information, and the second UE sends data to the first UE by using the first resource according to the resource indication information.

Abstract: Disclosed are method and device for selecting a cell in a wireless communication system. In particular, a method for selecting a cell by a terminal in a wireless communication system comprises the steps of: transmitting a random access preamble in a cell, which is selected by a terminal, to a base station; receiving a random access response from the base station; and, as a response to the random access response, transmitting an uplink message to the base station through a physical uplink shared channel (PUSCH), wherein the uplink message can comprises a radio resource management (RRM) measurement value which has been measured on the basis of a reference signal.

Abstract: Systems and methods are disclosed for establishing a device-to-device (D2D) group amongst a plurality of user equipments (UEs). In one embodiment a target UE transmits, using D2D communication, a request message inviting at least one other UE to be part of a D2D group with the target UE. A neighbour UE receives the request message and transmits a report message indicating that the neighbour UE will be part of the D2D group with the target UE. A base station receives the report message and transmits to the target UE and to the neighbour UE a confirmation message indicating that the neighbour UE is in the D2D group with the target UE.

Abstract: A method performed by a radio node for selectively providing synchronization information for Device-to-Device, D2D, communications between devices in a wireless communications network is provided. The radio node receives, when the radio node is providing synchronization information an indication to stop providing synchronization information for D2D communications. The radio node determines whether to continue to provide synchronization information for D2D communications or not based on the received indication. A radio node for selectively providing synchronization information for Device-to-Device, D2D, communications between devices in a wireless communications network is also provided.

Abstract: An uplink synchronization processing method, a User Equipment (UE), and a base station are provided. The method includes: receiving a component carrier (CC) uplink synchronization indication message sent by a base station, where the uplink synchronization indication message carries identification information of one or multiple newly configured CCs; sending synchronization signaling to the base station when determining that the uplink synchronization needs to be executed on all or a part of the one or multiple newly configured CCs corresponding to the identification information; and receiving a time advanced (TA) adjusting message that is sent by the base station according to the synchronization signaling, and applying a TA value carried in the TA adjusting message to the CC on which the uplink synchronization needs to be executed.

Abstract: The present invention relates to a method and a device for transmitting a device-to-device (D2D) synchronization signal of a first terminal in a wireless communication system. More specifically, the method comprises the steps of: setting at least one candidate value for a D2D synchronization signal period; and determining a D2D synchronization signal period for transmitting/receiving a D2D signal to/from a second terminal from among the at least one candidate value.

Abstract: The present disclosure relates to a 5G or pre-5G communication system to be provided for supporting a data transmission rate higher than that of a 4G communication system such as LTE. The present disclosure relates to a method for providing coordinated communication of a plurality of base stations, comprising the steps of: determining an interference value for each beam in a serving base station on the basis of interference signals received from neighboring base stations and transmitting the interference value for each beam to the neighboring base stations; determining a wireless resource and a beam for the coordinated communication by using the interference value for each beam and transmitting allocation information of the determined wireless resource and beam to the neighboring base stations; and determining a terminal, which will use the wireless resource and beam in a time period prior to a time period in which the coordinated communication is performed.

Abstract: A method, device and system for interacting link information, which are used for solving the problem that at present there is no solution for a network side to learn the link information about a terminal supporting D2D communications and how to distinguish D2D link information from D2N link information. A link information reporting method in the embodiments of the present invention comprises: a terminal supporting D2D communications determining link information which is required to be reported to a network side, wherein the link information comprises D2D link information and/or D2N link information; and the terminal sending the determined link information to the network side on a D2N link, and indicating a link corresponding to the link information to the network side.

Abstract: A method and apparatus for performing a device-to-device (D2D) operation in a wireless communication system is provided. In one embodiment, a user equipment (UE) receives a configuration of a reference timing for a cell of first carrier, based on a timing of a primary cell (PCell) of a second carrier, and performs D2D operation with another UE on the cell of the first carrier according to the reference timing. In another embodiment, a UE allocates a D2D transmission power based on an uplink (UL) transmission power for dual connectivity, and performs D2D operation with another UE according to the D2D transmission power.

Abstract: The present disclosure provides an uplink channel transmission method, a user equipment (UE), and a base station in the communications field. The method includes: determining, by the UE, n first channels and m second channels; allocating transmit power to L uplink channels according to a maximum uplink transmission time difference between the n first channels and the m second channels, where the L uplink channels include at least k second channels among the m second channels; and transmitting the L uplink channels. The first channel is an uplink channel corresponding to a first cell on a first time unit numbered i, and the first time unit has a first transmission time interval (TTI). The second channel is an uplink channel corresponding to a second cell on a second time unit numbered j, and the second time unit has a second TTI. The second TTI is shorter than the first TTI.

Abstract: A wireless device configured for discontinuous reception (DRX) may and operating in a system that uses directional beamforming may identify a random access time period after awaking from a DRX sleep mode. The device may then transmit a scheduling request during the random access time period. In some cases, the device may transmit the scheduling request using frequency resources also associated with random access transmissions. In other cases, the device may utilize resources that are not associated with random access. The determination of which frequency resources are used may depend on the length of the DRX. That is, if a device has been in a sleep mode for a long time, it may use random access frequency resources that are associated with a more robust transmission configuration.