Abstract: The 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 multi-band synthesizer generates a multi-band signal for transmission. The multi-band signal comprises a plurality of band signals each comprising one or more channel signals. The channel signals to be included in a particular band signal are specified in control signals, allowing the channels included in a band to be easily changed.

Abstract: The present application discloses a cellular network access method and apparatus. An embodiment of the cellular network access method for a base station comprises: receiving, from a pair of D2D devices, a result of a spectrum detection which indicates a load level of a detected spectrum; selecting a cellular communication mode or a D2D communication mode based on the received result of the spectrum detection; and notifying the pair of D2D devices of the selected mode. Through dynamic switching between the cellular communication mode and the D2D communication mode, it is possible to make full use of the available spectrum, thereby increasing the throughput of the system.

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for wireless communication over a neighbor awareness networking (NAN) data link (NDL). In some aspects, an apparatus may be configured to determine frequency band information for communicating over a NDL associated with a NAN service. In some other aspects, the apparatus may be configured to provide the determined frequency band information for transmission to a subscriber of the NAN service for setting up the NDL.

Abstract: A radio resource allocation method in a communication node is disclosed. The method comprises determining that a first time reference has a time shift compared to a second time reference. The method further comprises determining a duration of a communication sub-frame based on the time shift, and scheduling the determined communication sub-frame on a first component carrier to a first communication device. Corresponding computer program product, arrangement, communication node and first communication device are also disclosed.

Abstract: A network element for use in a mobile communications system and a method of using a network element for communicating data to/from mobile communications devices in a mobile communications system. The network element can provide a wireless access interface for communicating data to/from the mobile communications devices, the wireless access interface including: on a downlink a host carrier, the host carrier providing plural resource elements across a first frequency range; transmit data for a first group of mobile communications devices, wherein the data is distributed within the plural resource elements across the first frequency range; a virtual carrier via the wireless access interface, the virtual carrier providing one or more resource elements within a second frequency range which is within and smaller than the first frequency range; and transmit data for a second group of mobile communications devices via the virtual carrier.

Abstract: A communication device assigns a plurality of different orthogonal frequency division multiplex (OFDM) tone blocks for a wireless local area network (WLAN) communication channel to a plurality of devices. At least a first assigned OFDM tone block has a first frequency bandwidth that is less than a smallest bandwidth of a legacy WLAN communication protocol. The communication device generates an orthogonal frequency division multiple access (OFDMA) physical layer (PHY) data unit for transmission in the WLAN communication channel. The OFDMA PHY data unit is generated to include: a preamble portion that includes a legacy signal field having a bandwidth equal to the smallest bandwidth of the legacy WLAN communication protocol; and a data portion that includes respective independent data for the plurality of devices modulated to respective OFDM tone blocks, including data for a first communication device modulated to the first assigned OFDM tone block.

Abstract: The present invention relates to a method and apparatus for aggregating carriers in wireless communication systems. In the method, a first carrier is set up, and a second carrier is added in addition to the first carrier. In addition, the first carrier is a time division duplex (TDD) carrier for which an uplink subframe and a downlink subframe are positioned at different times in a frame, and the second carrier is a carrier only for a downlink that consists of downlink subframes.

Abstract: Techniques are described for wireless communication. A first method includes performing a clear channel assessment (CCA) for a first node associated with a first operator in a deployment of operators over an unlicensed radio frequency spectrum band, and transmitting data over the unlicensed radio frequency spectrum band when the CCA is successful. The data may be transmitted by the first node in accordance with an agreement between the first operator and a second operator in the deployment of operators. A second method includes receiving over an unlicensed radio frequency spectrum band, at a user equipment (UE), a first transmission from a first node associated with a first operator in a deployment of operators. The first transmission may include data originating from a second operator in the deployment of operators.

Abstract: The present invention discloses an apparatus and a method for determining a subband resource and relates to the field of communications network technologies, so as to resolve a problem of how to ensure communication between user equipment and a base station while costs of the UE or complexity of the UE is reduced. In embodiments of the present invention, subband resource information acquired by UE is used to determine a subband resource, so that data and/or control information can be transmitted according to the subband resource. The solutions provided in the embodiments of the present invention are suitable to be used to determine a subband resource.

Abstract: A common information transmission method and an apparatus relate to the communications field, and to reduce repeated sending of common information from a base station to a plurality of user equipments (UEs) during sending of the common information, and improve utilization of resources between the base station and the UEs. The method includes obtaining, by UE, frequency domain location information of a first transmission bandwidth, determining, by the UE, a size and a location of the first transmission bandwidth in a bandwidth of the UE according to the frequency domain location information, where the bandwidth of the UE is one of system bandwidths, and receiving, by the UE over the first transmission bandwidth according to the size and the location of the first transmission bandwidth, common information sent by a base station.

Abstract: [Object] To enable a terminal device to ascertain a layer allocated to the terminal device when non-orthogonal multiplexing using a codebook is used. [Solution] Provided is a device including: an acquisition unit configured to acquire information indicating a layer allocated to a terminal device among a plurality of layers that are subject to non-orthogonal multiplexing using a codebook; and a reporting unit configured to report the layer to the terminal device.

Abstract: Provided are a method and device for sharing resources between stations in a Wireless Local Area Network (WLAN). A primary node receives a radio frame sent by a secondary node, the secondary node being a secondary node that gains a Transmission Opportunity (TXOP), and Uplink Multi-User (UL MU) shared information is carried in the radio frame; and the primary node sends a feedback frame to the secondary node in response to the radio frame, the feedback frame carrying multi-user information of shared secondary node(s), and the shared secondary node(s) being one or more secondary nodes that perform UL MU shared transmission with the secondary node which gains a TXOP.

Abstract: The present disclosure relates to methods and devices for transmission of discovery signal signals and detection of discovery signal signals for device-to-device communication. According to some aspects, the disclosure relates to a method executed in a wireless terminal for transmitting a control signal for enabling device-to-device, D2D, discovery, wherein the control signal carries an identity. According to one aspect, the method comprises hashing the control signal, taking a time stamp used for the control signal transmission as one input parameter, encoding the hashed control signal, and transmitting the encoded signal.

Abstract: There is provided a method including generating, by a network element, at least one transmission gap within data transmission performed by the network element, transmitting a control message to at least one terminal device, wherein the control message includes a first request to perform, by the at least one terminal device, a first interference measurement during the at least one transmission gap, and wherein the control message further includes a second request to perform, by the at least one terminal device, a second interference measurement during the said data transmission, receiving, from the at least one terminal device, an interference report including information that is at least partly based on the first and the second interference measurements, and providing communication resources on the basis of the received interference report.

Abstract: There is provided a method comprising: determining, by a network element, that at least one terminal device is capable of performing a voice call quality test, sending a radio system specific control message to the at least one terminal device, wherein the control message causes the at least one terminal device to perform the voice call quality test, and obtaining the voice call quality test results.

Abstract: A user equipment apparatus for supporting D2D (user equipment-to-user equipment) communication includes a generation unit configured to generate information about at least one of a transmission resource which can be used by the user equipment apparatus to transmit a D2D signal and a reception resource which can be used by the user equipment apparatus to receive a D2D signal; and a transmission unit configured to transmit the generated information to another user equipment apparatus; wherein the transmission resource and the reception resource are orthogonal in terms of time.

Abstract: A measurement apparatus and method. The method includes sending, by a radio access network system, information about a subframe mode corresponding to at least one beam, where the information about the subframe mode instructs a UE to perform measurement according to the information about the subframe mode, and the method further includes receiving, by the radio access network system, a measurement result sent by the UE. The measurement apparatus and method can be used to perform the measurement in a millimeter wave scenario.

Abstract: Techniques are described for wireless communication. One method includes receiving a first transmission according to a first radio access technology (RAT); determining a transmitter of the wireless communication device is tuned to a second RAT during a default feedback transmission time for the first transmission; and transmitting feedback for the first transmission at a delayed feedback transmission time for the first transmission. The delayed feedback transmission time is based at least in part on a timing for tuning the transmitter from the second RAT to the first RAT. Another method includes transmitting a first transmission, in which the first transmission is associated with a default feedback transmission time for the first transmission; and receiving feedback for the first transmission at a delayed feedback transmission time for the first transmission.

Abstract: Techniques are described for wireless communication. One method includes determining a portion of a transmission time interval (TTI) is available for a transmission that is shorter than a duration of the TTI; selecting a transmission format for transmitting the transmission to a receiving device during the portion of the TTI; and indicating a timing of the transmission to the receiving device. Another method includes determining a portion of a TTI is available for a transmission that is shorter than a duration of the TTI; selecting a transmission format from a plurality of transmission formats for transmitting the transmission to a receiving device during the portion of the TTI; and transmitting the transmission to the receiving device.

Abstract: [Object] To provide a communication apparatus and a communication method that can reconcile efficient use of wireless communication resources with stabilization of reception performance in wireless multiplex communication. [Solution] Provided is a communication apparatus including: a communication unit configured to receive frames including first information from a plurality of other communication apparatuses and transmit first frames including information indicating a first transmission time period to the plurality of other communication apparatuses; a control unit configured to determine the first transmission time period on the basis of the plurality of pieces of first information; and a processing unit configured to generate the first frames.

Abstract: [Object] To enable radio communication to be performed more favorably in a UL band of FDD when the UL band is used for both DL and UL in a time division manner. [Solution] There is provided a device including: a switching unit configured to switch an operation mode of an uplink band of FDD between a first mode in which the uplink band is used for uplink and a second mode in which the uplink band is used for both downlink and uplink in a time division manner; and a control unit configured to give an instruction on a first timing advance on the basis of a downlink reception timing in a downlink band of FDD corresponding to the uplink band and an instruction on a second timing advance on the basis of a downlink reception timing in the uplink band.

Abstract: A scheduling node (600), a transmitting node (602), a receiving node (604), and methods therein, for communication of data on a shared radio resource. The scheduling node (600) divides wireless devices into multiple groups, and assigns group-specific rotation angles to the groups so that the transmitting node (602) should apply a group-specific rotation angle when transmitting data to or from a wireless device in the corresponding group. In addition, a repetition factor is assigned to each wireless device such that the data is repeated consecutively according to the repetition factor, before transmission. The repetition factor may correspond to the number of groups.

Abstract: Aspects of the present disclosure provide various wireless communication numerology designs that can maintain symbol boundary alignment while multiplexing different numerologies in wireless communication. The symbols may be scaled for different tone or subcarrier spacings while maintaining the symbol boundary alignment between different numerologies. Maintaining the symbol-boundary alignment between different numerologies enables symbol-level numerology multiplexing. The disclosed numerology designs enable low latency communication and improved interference management, and provide non-ambiguous symbol boundary timing reference for multiplexing different numerologies.

Abstract: Techniques for managing Radio Access Technology (RAT) aggregation on a shared communication medium are disclosed. Control signaling may be sent, over a shared communication medium to an access terminal, in accordance with a first RAT. Data traffic may be scheduled for transmission to the access terminal based on one or more operating mode criteria for selecting between RATs. The scheduled data traffic may be transmitted, over the shared communication medium to the access terminal, in accordance with a second RAT.

Abstract: A system and method of minimizing interference and retries in an environment where two or more network protocols utilize the same frequency spectrum is disclosed. A lower-power network controller is co-located with a WIFI controller. The lower-power network controller parses incoming packets as they are received and generates a request signal once it is determined that the incoming packet is destined for this device. This maximizes the likelihood that no WIFI traffic will occur while the incoming packet is being received.

Abstract: A data transmission method and a device are disclosed and relate to the field of communications technologies, so that a channel resource preemption probability of a device can be effectively increased by reducing a CCA interval at which a CCA is performed on a channel resource. The method includes: determining, by a first device, a CCA start moment at which a clear channel assessment CCA is performed; determining, by the first device, a CCA interval, where the CCA interval is a time interval between two adjacent CCAs, and a time interval between any two adjacent CCAs is less than a preconfigured data frame period; performing, by the first device, a CCA process according to the CCA start moment and the CCA interval; and sending, by the first device, data at an end moment of the CCA process. The method and the device are used for data transmission.

Abstract: Certain aspects of the present disclosure relate to specifying possible default spatial reuse (SR) modes and signaling of the default spatial reuse modes. Certain aspects of the present disclosure provide a method for wireless communications. The method generally includes generating a frame that provides an indication, to a secondary recipient of the frame, of how to use spatial reuse (SR) information and transmitting the frame. Another provided method for wireless communications generally includes receiving, from a first node, a first frame that provides an indication of how to use spatial reuse (SR) information, determining if a signal strength of the first frame exceeds a threshold, generating a second frame for transmission to a second node, and if the signal strength of the first frame does not exceed the threshold, transmitting the second frame during a period when the first frame is being transmitted.

Abstract: This application provides a method and apparatus for processing a buffer status report and a communication system, the method being applicable to user equipment (UE) and including: whether in an TTI where an allocated uplink resource for the TTI is capable of accommodating a ProSe BSR MAC CE containing a buffer status for at least one ProSe Destination and its corresponding MAC subheader is judged; if yes, whether there exist side-link data available for transmission in the TTI is judged; and if no, all triggered ProSe BSRs are cancelled. With embodiments of this disclosure, a problem that UE is unable to determine contents of a ProSe BSR MAC CE to be transmitted at a TTI when triggered ProSe BSRs can be transmitted is solved.

Abstract: Methods, systems, and devices for wireless communication are described. The methods, systems, and devices provide for identifying tone spacing for transmission or reception of signals. The identified tone spacing may vary depending on the transmission or reception spectrum band or signal type. Using the identified tone spacing, a number of repetitions or a number of symbols for transmission or receiver algorithm of a signal may be determined.

Abstract: A UE and a data transmission method thereof are provided. The method includes: acquiring configuration information of a first shortened TTI sent by a base station; blindly detecting a predetermined physical downlink link control channel with a period of the first shortened TTI, until primary DCI corresponding to the UE is acquired; determining secondary DCI corresponding to the UE based on the acquired primary DCI; and performing data transmission with the base station in a second shortened TTI scheduled by the secondary DCI. Flexibility of application of a shortened TTI may be improved, and resources may be saved.

Abstract: A UE is described that includes a higher layer processor configured to receive a dedicated RRC configuration message which configures a License Assisted Access (LAA) cell. The UE also includes a PDCCH receiver configured to receive a first PDCCH and a second PDCCH. The first PDCCH is a PDCCH with CRC scrambled by CC-RNTI, and with a DCI format which contains a subframe configuration field. The second PDCCH is a PDCCH with DCI formats for scheduling physical uplink shared channel(s) (PUSCH(s)) on the LAA cell. If the first PDCCH is detected in subframe n, and the first PDCCH is not detected in subframe n?1, and if the number of occupied OFDM symbols for the subframe n indicated by the subframe configuration field in the subframe n is less than 14, the UE is not required to receive any other physical channels in subframe n except for the second PDCCH.

Abstract: A wireless device and a method for a wireless device served by a first network node on a primary cell (PCell) is provided. The wireless device is capable of using at least two secondary serving cells (SCells). A first request to perform a measurement on at least one cell on a first secondary component carrier (SCC) with a deactivated first SCell using at least a first measurement cycle is received. A second request to perform a measurement on at least one cell on a second SCC with a deactivated second SCell using at least a second measurement cycle is received. An effective serving cell interruption probability (Peff) of missed at least one of Acknowledgement and Negative-Acknowledgement signaling in an uplink direction is determined based on at least the first measurement cycle and the second measurement cycle. A serving cell interruption probability is ensured to not exceed the determined Peff.

Abstract: A base station includes a controller configured to map initial access signals, each initial access signal corresponding to one of a plurality of transmit beams, to a subset or all of a plurality of predefined time locations in at least one periodicity, and a transmitter configured to transmit the mapped initial access signals to a UE and indicate OFDM symbols that are not mapped with the initial access signals in the one periodicity to the UE. A UE includes a transceiver configured to receive initial access signals mapped to a subset or all of time locations in one periodicity from a base station, the each initial access signal corresponding to one of a plurality of different beams, and a controller configured to perform an initial access to the base station and receive the indication of OFDM symbols that are not mapped with the initial access signals in the one periodicity.

Abstract: Embodiments of the disclosure provide a method and apparatus for performing fractional subframe transmission. The method may comprise: in response to detecting that a channel becomes available, determining a target position from at least one potential position predefined in a subframe; and performing the fractional subframe transmission from the target position.

Abstract: Communication opportunities of existing terminal devices are ensured, in a communication system in which terminal devices capable of using a new CCA level and the existing terminal devices using an existing CCA level coexist, on the premise of CSMA/CA. A communication method of a radio transmission device of the present invention includes a step of signaling information indicating a first CCA section and a second CCA section to the radio reception device. A communication method of a radio reception device of the present invention includes a step of performing the carrier sense based on a first CCA level and a second CCA level, and a step of performing the carrier sense based on the first CCA level, in the first CCA section, based on information indicating the first CCA section.

Abstract: The present invention relates to a method and an apparatus for implementing Listen-Before-Talk. According to an embodiment of the present invention, if the channel assessment does not stop at a boundary of the first symbol, the preamble comprises at least a first part, and if the channel assessment stops at the boundary of the first symbol, the preamble comprises a second part. And the first part is transmitted on a remaining portion of the first symbol until the end of the first symbol, and the second part is transmitted on at least one symbol following the first symbol. Besides, the data is transmitted to the receiving device in at least one symbol in the subframe in which the preamble transmission ends.

Abstract: Methods and apparatus for determining backoff values when transitioning between single-user (SU) and multi-user (MU) modes are provided. A station (STA) transitions from a Single-User (SU) mode, in which a first set of parameters is used to attempt to access a medium, to a Multi-User (MU) mode, in which a second set of parameters is used to attempt to access the medium. The STA determines, upon transitioning back from the MU mode to the SU mode, one or more values to use for setting corresponding one or more of a set of backoff counters. The STA attempts, after setting the one or more backoff counters, to access the medium for one or more SU transmissions based on the set of backoff counters.

Abstract: Access priority for wireless devices located in an area in which radiofrequency (RF) coverage areas of a first wireless access point and a second wireless access point overlap is controlled by coordinating operation of the first wireless access point and the second wireless access point. The wireless devices access a common RF channel via a collision sense multiple access/collision avoidance mechanism. The probability of accessing the RF channel may be varied by adjusting the length of interframe spacings and the length of contention windows. The length of the interframe spacings and the length of the contention windows associated with the first access point and associated with the second access point are configured such that the probability of wireless devices associated with the first wireless access point accessing the RF channel is greater than the probability of wireless devices associated with the second wireless access point accessing the RF channel.

Abstract: Disclosed are a method and apparatus for transmitting a frame. A method for transmitting a frame in a wireless LAN comprises the steps of: an STA receiving an uplink transmission trigger frame from an access point (AP), wherein the uplink transmission trigger frame triggers the transmission of an uplink frame of an STA on an overlapping time resource, and triggers the transmission of one other uplink frame of at least one other STA; the STA transmitting the uplink frame to the access point (AP) through an allocated uplink transmission resource; and the STA performing a backoff process based on channel access parameters, which have been determined according to the success of the uplink frame transmission.

Abstract: Embodiments of the present disclosure provide a random access method, a terminal, and a base station. The method includes: receiving, by a terminal (UE), configuration information of random access resources from a base station, where the configuration information of the random access resource includes: configuration information of a first random access resource received from the base station using a system broadcast and configuration information of a second random access resource received from the base station by using downlink control information (DCI); selecting, by the UE, a random access resource from the first random access resource and the second random access resource according to a random access rule and the configuration information of the random access resources; and initiating, by the UE, random access according to the selected random access resource.

Abstract: A method of performing a random access procedure includes randomly selecting a backoff time from within a backoff window ranging from o to a specified multiple of a random access preamble unit, waiting until a time initialized with the backoff time expires, and retransmitting a random access preamble.

Abstract: A system and method includes implementing, by a base station (BS), a reliable ultra-low latency transmission mechanism in a grant-free uplink transmission scheme having defined therein contention transmission unit (CTU) access regions and a plurality of CTUs. Implementing the reliable ultra-low latency transmission mechanism includes defining a reliable ultra-low latency CTU (RULL-CTU) access region from a portion of the CTU access regions of the grant-free transmission scheme, defining an RULL-CTU mapping scheme by mapping at least a portion of plurality of CTUs to the RULL-CTU access region to define a plurality of RULL-CTUs, defining a reliable ultra-low latency user equipment (RULL-UE) mapping scheme by defining rules for mapping a plurality of RULL-UEs to the plurality of RULL-CTUs in an initial pattern for initial transmissions in a first transmission time interval (TTI), and a regrouped pattern for redundant transmissions in a second TTI subsequent to the first TTI.

Abstract: A method for providing relay services to a remote device (RD) includes receiving a relay service request from the RD, the relay service request including at least an identifier of the RD, and the RD is not in active radio communications with an entity of the communications system, restricting relay services on communications from the RD, sending a first authentication request including at least a portion of the relay service request to a network node, receiving a second authentication response confirming the identity of the RD, and unrestricting the relay services on communications from the RD.

Abstract: A connection establishment method includes receiving a service connection request sent by a first client, wherein the service connection request comprises a service identifier and a client identifier of a second client requested for connection, acquiring connection reference information, and when it is determined that the connection reference information satisfies a service restriction condition corresponding to the service identifier, establishing a connection between the first client and the second client corresponding to the client identifier.

Abstract: Devices and methods are provided for determining the proximity of client nodes within a wireless-enabled communication environment. A first client node comprises a database containing identification data associated with a plurality of wireless network access nodes and fingerprint data associated with the client node and a plurality of second client nodes. As the fingerprint information is updated, it is processed by the first client node to identify second client nodes that have matching, or similar, fingerprint information. Those that do are determined to be within a viable device-to-device (D2D) communication range.

Abstract: A device, system, and method synchronizes network states for a user equipment (UE) during a handover from a first network to a second network while the UE was in a radio resource control (RRC) idle state. The method includes determining whether a first context associated with a first non-default bearer over the first network is stored on the UE. The method includes when the first context is determined, determining a second context associated with a second non-default bearer over the second network is stored on the UE. The method includes transmitting a request to the first network over a default bearer for network state information relative to the first network. The method includes receiving the network state information from the first network, the network state information indicating that the UE does not have the first non-default bearer over the first network established. The method includes deleting the first context.

Abstract: A method and apparatus for transmitting location information of a serving small cell in a wireless communication system is provided. A first evolved NodeB (eNB), which may be a master eNB (MeNB) in dual connectivity, receives the location information of the serving small cell served by a second eNB, which may be a secondary eNB (SeNB) in dual connectivity, from the second eNB, and transmits the received location information of the serving small cell to a mobility management entity (MME).

Abstract: A communication device (100) being part of a proximity-based sharing network (400), said communication device comprising a controller (210) and a radio frequency interface (230), wherein the controller is configured to: detect that a second communication device (100B) is in an immediate proximity and in response thereto automatically establishing a connection (430) for sharing content.

Abstract: A first base station (1) is configured to establish a first signaling bearer with a mobility management apparatus (5), establish a second signaling bearer with a second base station (2), and to establish a signaling radio bearer with a mobile station (3) in a first cell (10). The second base station (2) is configured to establish the second signaling bearer with the first base station (1), establish a data bearer with a data transfer apparatus (6), and to establish a data radio bearer with the mobile station (3) in a second cell (20). Furthermore, the first base station (1) is configured to transmit, to the second base station (2) through the second signaling bearer configuration information, necessary to establish the data bearer and the data radio bearer in the second base station (2). Thus, for example, bearer architecture suitable for a C/U plane split scenario is provided.