Abstract: The present invention relates to a wireless communication system. A method of removing interference and receiving data by means of a terminal in a wireless communication system according to an embodiment of the present invention may include: transmitting first generic channel state information (CSI) generated based on required signal power from a serving cell; transmitting second generic CSI generated based on interference signal power from an interference cell; and receiving data generated based on CSI recalculated by using an interference condition that has changed after the transmission of the first and second generic CSI.

Abstract: Provided are a method and apparatus for transmitting uplink data. Particularly, a method for transmitting uplink data in a wireless communication system, the method includes transmitting, by a user equipment, a scheduling request to a base station, and transmitting, by the user equipment, uplink data through a contention-based physical uplink shared channel (PUSCH) resource block that can transmit the uplink data without a uplink grant of the base station, wherein the scheduling request and the contention-based PUSCH resource block may be transmitted in an identical subframe.

Abstract: A wireless device receives a media access control (MAC) activation command indicating activation of a plurality of physical uplink control channel (PUCCH) secondary cell. The wireless device receives, on a secondary cell in the plurality of cells, downlink control information comprising a PUCCH transmit power control (TPC) command. The wireless device calculates, a transmit power of the secondary PUCCH, employing the PUCCH TPC command only if the secondary PUCCH group comprises the secondary cell. The wireless device transmits uplink signals on the secondary PUCCH with the transmit power.

Abstract: Methods and systems for transmitting uplink control information and feed back are disclosed for carrier aggregation systems. A user equipment device may be configured to transmit uplink control information and other feedback for several downlink component carriers using one or more uplink component carriers. The user equipment device may be configured to transmit such data using a physical uplink control channel rather than a physical uplink shared channel. The user equipment device may be configured to determine the uplink control information and feedback data that is to be transmitted, the physical uplink control channel resources to be used to transmit the uplink control information and feedback data, and how the uplink control information and feedback data may be transmitted over the physical uplink control channel.

Abstract: The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for transmitting an uplink signal. A method for transmitting an uplink signal at a UE in a wireless communication system includes, when a virtual cell ID for a reference signal for demodulation of a physical uplink channel is provided, generating a sequence of the reference signal on the basis of the virtual cell ID, and transmitting the generated reference signal to an eNB. A cyclic shift hopping pattern of the reference signal can be determined on the basis of the virtual cell ID.

Abstract: A method of assigning nodes and time slots in a wireless audio node mesh network includes transmitting via a gateway node to nodes in a wireless mesh network, such that nodes in the wireless mesh network that receive transmissions from the gateway node are allocated to a first level as child nodes of the gateway node, transmitting via the first level nodes to further nodes in the wireless mesh network such that further nodes that receive transmissions from the first level nodes are allocated to a second level as child nodes of the first level nodes, and allocating non-conflicting transmission and reception time slots to the gateway node, the first level nodes and the second level nodes.

Abstract: A number of times to repeat a PDCCH over a plurality of subframes is set, a downlink assignment and information including a parameter that indicates an MBSFN subframe are received, and on the basis of whether the number of times to repeat the PDCCH is set, a determination is made as to whether the downlink assignment can take place in the MBSFN subframe indicated by the parameter.

Abstract: Methods, systems, and devices are described for efficient use of transmit opportunities (TXOPs) through adjustment of contention window backoff time values to compensate for one or more TXOPs that may exceed a TXOP limit. A contention window value may be increased, for example, to provide other devices in the network with a fair opportunity for network access based at least in part on one or more TXOPs that exceed the TXOP limit. Allowing one or more transmissions to exceed a TXOP limit may provide enhanced efficiency as compared to having multiple transmissions.

Abstract: Disclosed is a method for allowing a terminal to transmit and receive signals to and/from a base station in a wireless communication system using a time division multiplexing method. Specifically, the method comprises the steps of: receiving a request signal for resetting into a second uplink/downlink setting while transmitting and receiving a signal according to a first uplink/downlink setting; terminating an uplink retransmission process associated with a specific uplink subframe when the use of the specific uplink subframe is changed into a downlink subframe according to the second uplink/downlink setting; and applying the second uplink/downlink setting at a specific time point to transmit and receive signals.

Abstract: A base station supports a low latency mode of a terminal through a legacy downlink subframe transmitted in a first transmission time interval (TTI) unit in a downlink primary component carrier, and transmits control information and low latency downlink data to the terminal operated in the low latency mode through a downlink subslot transmitted in a second TTI unit in a downlink secondary component carrier.

Abstract: A data transmission method and a station are provided. In the method, the station receives an indication frame sent by an access point, where the indication frame is used to allocate a specified random contention channel. The station sends data over the specified random contention channel according to the indication frame and a random probability.

Abstract: Methods and apparatuses pertaining to coordination and provision of non-interfering long-range low-power wireless communications may involve facilitating wireless communications among a first set of wireless devices in a first frequency band when operating in a first mode in which there is frequency overlap and no spatial overlap among the first set of wireless devices. Moreover, wireless communications may be facilitated among a second set of wireless devices in a second frequency band different from the first frequency when operating in a second mode in which there is spatial overlap and no frequency overlap among the second set of wireless devices.

Abstract: In one embodiment, a network of nodes is configured to communicate according to a configuration of a vertical ladder topology as well as monitoring communication in the network, and/or selectively controls whether or not provisioned particular links will be used. One embodiment colors nodes of the network (e.g., a wireless deterministic network) along different paths through the network and marks packets with the color of each traversed node to track a path taken by a packet. One embodiment sends a particular packet through the network and marks over which links the packet traverses and aggregates these traversed links of other copies of the particular packet. One embodiment controls whether or not the provisioned time slots are used based on flooding a control packet through the network with enable or disable information for each of these links.

Abstract: A wireless communication system includes a plurality of communication devices. The RF transceiver includes a transmitter and a plurality of receivers, each receiving signal from an associated communication device. A Enhanced Node B (eNB) can communicate with a plurality of communication devices in a Multiple-Input Multiple-Output (MIMO) system. The Node B includes a transmitter and plurality of antenna configured to transmit control information. The wireless communication system may utilize licensed and unlicensed RF spectrum. Long Term Evolution (LTE) is transmitted according to licensed and unlicensed spectrum. The invention deals with swapping between primary carrier and secondary carrier(s) for licensed and unlicensed spectrum.

Abstract: A mobile station which configures a plurality of component carriers to communicate with a base station includes a transmission unit configured to transmit to the base station a terminal capability associated with non-gap measurement indicating whether the mobile station is capable of performing inter-frequency measurement using a radio frequency (RF) chain which is not used for a component carrier; a reception unit configured to receive whether to allow the non-gap measurement from the base station; and a communication control unit configured to control communication according to a gap pattern of using a portion of an inter-frequency measurement duration for data communication, when the non-gap measurement is allowed.

Abstract: In one aspect, a mobile device comprises a transceiver and a controller. The transceiver communicates with another device in a plurality of frequency bands. The plurality of frequency bands includes a first frequency band and a second frequency band. The first frequency band has a lower frequency than the second frequency band. The controller uses the first frequency band in preference to the second frequency band in a first case where an own mobile device is estimated to be immersed in water based on a value detected by at least one sensor. The controller uses the second frequency band in preference to the first frequency band in a second case where the own mobile device is not estimated to be immersed in water based on a value detected by the at least one sensor.

Abstract: Techniques for sending control information to support operation on multiple component carriers (CCs) are disclosed. A user equipment (UE) may be configured with multiple CCs for carrier aggregation. The multiple CCs may be associated with different uplink-downlink configurations and may have different downlink subframes and uplink subframes. In one aspect, uplink control information (UCI) for a secondary CC (SCC) may be sent on a primary CC (PCC) based on a UCI transmission timeline for the PCC (and not based on a UCI transmission timeline for the SCC). For example, a downlink grant for the SCC may be sent based on a downlink grant transmission timeline for the PCC. In another aspect, uplink grants for an SCC may be sent on the PCC based on an uplink grant transmission timeline for the PCC (and not based on an uplink grant transmission timeline for the SCC).

Abstract: Embodiments of the present disclosure provide a method for enhanced transmission of control information, user equipment, a base station, and a communications system. The method includes: determining a first parameter for enhanced transmission of control information. Between a base station and UE, a kth subframe after a last subframe in enhanced transmission of control information may be preset as a start subframe in enhanced transmission of a PDSCH, a jth subframe after the last subframe in enhanced transmission of the control information may be preset as a start subframe in enhanced transmission of a PUSCH, and a start subframe in enhanced transmission of the control information is preset, where the subframes may also be radio frames. Therefore, the user equipment can accurately determine the last subframe and/or radio frame occupied by the control information, thereby ensuring performance of the PDSCH or PUSCH.

Abstract: Techniques for managing communications are disclosed. The management may comprise, for example, monitoring a shared channel for downlink transmissions associated with a first Radio Access Technologies (RAT) and uplink transmissions associated with the first RAT, identifying a first set of node identifiers associated with the downlink transmissions on the shared channel and a second set of node identifiers associated with the uplink transmissions on the shared channel, and detecting a hidden node operating on the shared channel based on the first set of node identifiers and the second set of node identifiers.

Abstract: The present invention discloses a method for reducing interference in a wireless communication system supporting D2D communication and an apparatus for the method. More specifically, in a wireless communication system supporting Device-to-Device (D2D) communication, a method for reducing interference in D2D communication comprises receiving, by a user equipment (UE), a D2D signal; determining, by the UE, whether interference is generated from resources in which the D2D signal has been transmitted; and in case it is determined that interference is generated from the resources in which the D2D signal has been transmitted, transmitting, by the UE, interference resource information for indicating that interference has been generated from the resources in which the D2D signal has been transmitted.

Abstract: An electronic device is provided. The electronic device includes a communication module, a first processor and a second processor, and a plurality of filters. The first processor identifies a frequency band corresponding to the network, and the second processor receives information on the frequency band from the first processor and determines a filter to be used among the plurality of filters based on the information.

Abstract: Technology for a user equipment (UE) operable to perform carrier measurements in a wireless network is disclosed. The UE can receive, from a network element, one or more switching parameters that indicate possible switching occasions for the UE. The UE can be configured to switch a radio frequency (RF) to another carrier frequency during the possible switching occasions in order to start performing carrier measurements or stop performing carrier measurements. The can send, to the network element, a switching notification that indicates an upcoming switching occasion that is selected by the UE. The switching notification can be sent in conjunction with a measurement value that indicates one or more of: selected carriers for which the UE is to start performing carrier measurements after an occurrence of the switching occasion or selected carriers for which the UE is to stop performing carrier measurements after the occurrence of the switching occasion.

Abstract: A user apparatus in a mobile communication system supporting carrier aggregation includes a measurement unit configured to measure an rs-sinr (reference signal-signal to interference and noise ratio) for a reference signal in a physical downlink control channel transmitted from a base station; and a reporting unit configured to report the measured rs-sinr to the base station in accordance with a predefined reporting trigger.

Abstract: A method for a network controller to carry out automatic channel allocation for a network of wireless communication links between communication nodes, the method including determining an estimated signal attenuation between communication nodes in a network, allocating wireless channels, determined by a set of transmission parameters, to a plurality of wireless communication links in the network, based, at least in part, on the estimated signal attenuation, sending a message to a first communication node, the message instructing the first communication node to use a set of transmission parameters for communicating a first wireless communication link connecting the first communication node to a second communication node at an opposite end of the first wireless communication link, the transmission parameters based, at least in part, on the allocating wireless channels. Related apparatus and methods are also described.

Abstract: A method includes: receiving, by a decision device, throughput rates that are separately sent by wireless network devices in m wireless networks and can be separately obtained by a wireless multimode terminal in the m wireless networks, where the m wireless networks are wireless networks that can be currently accessed by the wireless multimode terminal, and m?2; and determining, by the decision device according to the throughput rates that can be separately obtained by the wireless multimode terminal in the m wireless networks, a wireless network that is suitable to be accessed by the wireless multimode terminal in connected mode.

Abstract: A terminal apparatus according to one aspect of the present invention constitutes and reports an amount-of-transmission-buffer report to be notified to a base station apparatus, based on first transmission data to the base station apparatus, which is prepared in a transmission buffer of the terminal apparatus itself, second transmission data for device-to-device data communication, and a priority level of each piece of transmission data.

Abstract: The present disclosure provides a data scheduling method using an unlicensed spectrum, an apparatus, and a device, and relates to the radio communications field. According to the method, apparatus, and device, an unlicensed spectrum resource can be effectively used, thereby meeting a bandwidth requirement of an LTE device. The method is as follows: first, an unlicensed-spectrum serving cell is configured for user equipment by using a configuration message of the unlicensed-spectrum serving cell; then, data is transmitted over the unlicensed-spectrum serving cell by using a scheduling command. Embodiments of the present disclosure are applied to data transfer over the unlicensed-spectrum serving cell.

Abstract: It is presented a method for transmitting interference cancellation information to a first user equipment, UE. The method is performed in a first network node and comprises the steps of: determining that the first UE is connected to the first network node in a multipoint fashion such that the first UE is also connected to a second network node; obtaining first downlink scheduling information describing downlink transmission from the first network node to a second UE; and transmitting interference cancellation information to the first UE over a control channel also used by the first network node to transmit scheduling information to the first UE, the interference cancellation information comprising the first downlink scheduling information and an indicator that the interference cancellation information does not contain scheduling information for the first UE.

Abstract: A receiving device includes a receiving circuit configured to receive a first packet and a second packet, each of the first packet and the second packet including a first signal in a head and a second signal in a tail, respectively, and a processor configured to detect a collision of the first packet and the second packet based on a receiving timing of the first signal of the first packet, a receiving timing of the second signal of the first packet, and at least one of a receiving timing of the first signal of the second packet and a receiving timing of the second signal of the second packet, after detecting the collision, separate the first packet and the second packet based on the first signal of the first packet and the second signal of the second packet, and demodulate the separated first packet and the separated second packet, respectively.

Abstract: According to the present invention, there is provided a terminal device that transmits a signal to a base station apparatus through uplink, the terminal device including: an information generation unit that considers a priority level for multiple MAC control elements in the logical channel prioritization procedure for the uplink, in a case where initial transmission is performed, in which at least a first MAC control element and a second MAC control element are included in the multiple MAC control elements, in which the first MAC control element provides the base station apparatus with information on an amount of first data available for transmission within a first buffer for the uplink, in which the second MAC control element provides the base station apparatus with information on amount of second data available for transmission within a second buffer for a first link that is used for communication between the terminal device and a different terminal device, and in which the first MAC control element has a h

Abstract: A method includes: transmitting, by a transmitting user equipment (UE), scheduling signaling to a receiving UE, where the scheduling signaling includes frequency domain resource information, a quantity of cycles that can be occupied, or transmission pattern information. The method further includes transmitting, by the transmitting UE, user data to the receiving UE according to the scheduling signaling, so that the receiving UE receives the user data according to the scheduling signaling.

Abstract: The present invention relates to a D2D capable a communication method and to a transmitting user equipment, which transmits data to a receiving user equipment over a direct link data channel, uses the services of the eNode B in order to have resources allocated for transmitting said data. To this end the UE sends to the eNB scheduling information using resources of a subframe dedicated for standard uplink communication through the eNode B, rather than using resources on the subframe dedicated to D2D data transmission. In order to allow the eNB to distinguish whether the received scheduling request is for allocating resources for transmitting data over the direct link channel or over the eNB, UE may send along with the scheduling information also identification information associated to the scheduling information.

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) and a base station may use low latency communications to improve the throughput of a wireless link. To facilitate efficient low latency communication, the UE may send UE-initiated CSI reports in addition to periodic and base station-initiated reports. For example, the UE may, in various examples, send UE-initiated CSI reports using contention based spectrum, using a request-to-transmit, or using a CSI differential (i.e., an indicator of a change in channel conditions). The base station may schedule different UEs for uplink low latency communication by providing resources to each UE for CSI and scheduling requests (SRs) using coherent or non-coherent uplink transmissions. The CSI and SR may also be combined with uplink feedback.

Abstract: The present invention relates to the communications field, and discloses an information transmission method and a device, which can resolve a problem of excessively high overheads of scheduling signaling of data retransmission in an unlicensed spectrum. A specific solution is as follows: writing a data retransmission identifier of a first carrier into a preset field of a physical downlink control channel; generating a data scheduling instruction of the physical downlink control channel; sending, on a second carrier, the data scheduling instruction of the physical downlink control channel to a receiving device; and sending data that is on the first carrier on the second carrier according to the data scheduling instruction of the physical downlink control channel. The present invention is applied to information transmission.

Abstract: A random access response method, a base station, and a terminal are disclosed. In an embodiment the method includes receiving a random access preamble sent in an enhanced manner, determining at least one of level information or resource information corresponding to the random access preamble sent in the enhanced manner and sending a random access response RAR of the random access preamble according to the at least one of the level information or the resource information, where the RAR is carried by a physical downlink shared channel PDSCH.

Abstract: A method, performed by a device of a wireless access network, includes determining, by the device, that Voice over Long Term Evolution (VoLTE) capability is enabled for a network segment of the wireless access network; designating, by the device, the network segment for VoLTE enforcement; adding, by the device, an indication of VoLTE enforcement to a message information block; and transmitting, by the device, the message information block on the network segment.

Abstract: Disclosed are a method and an apparatus for transmitting a frame in a wireless LAN. The method for transmitting a frame in a wireless LAN may comprise the steps of: transmitting, by an AP, an RTS frame for medium protection to a first STA set; receiving, by the AP, CTS frames, in sequence, from each of a plurality of STAs included in a second STA set in response to the RTS frame, the second STA set being included in the first STA set; and transmitting, by the AP, each of a plurality of PPDUs to each of the plurality of STAs via each of a plurality of subbands for each of the plurality of STAs on an overlapping time resource.

Abstract: Techniques are disclosed for implementing the LBT in consideration of propagation delay differences in a cell. One aspect of the present invention relates to user equipment, comprising: a transmission and reception unit configured to use a scheduled radio resource to perform transmission and reception to/from a base station via a cell; and a frequency usage detection unit configured to perform Listen Before Talk (LBT) on a frequency band in the cell at an LBT timing independent of a scheduled uplink transmission timing, wherein when the frequency usage detection unit determines that no other user equipment is communicating in the frequency band, the transmission and reception unit performs uplink transmission to the base station.

Abstract: A user apparatus that communicates with a base station in a mobile communication system, including: a reception unit configured to receive a radio signal from the base station by a downlink control channel; and a control information detection unit configured to detect control information, addressed to the user apparatus, mapped to a predetermined area in a time frequency resource of the downlink control channel by performing blind decoding in a plurality of candidate areas which are candidates of the predetermined area, wherein, the plurality of candidate areas are divided into a common candidate area where a plurality of user apparatuses commonly perform blind decoding and an individual candidate area for the user apparatus, and the control information detection unit performs blind decoding in the individual candidate area without performing blind decoding in the common candidate area during a period when the user apparatus monitors a random access response.

Abstract: A method and apparatus for transmitting information for device-to-device (D2D) operation in a wireless communication system is provided. A user equipment (UE) establishes a radio resource control (RRC) connection with a network. If the UE has interest to perform D2D operation, the UE transmits D2D information to the network. The D2D information may indicate various pieces of information.

Abstract: A method includes, at a user equipment, combining a message requesting the radio resource connection and a message requesting at least one service into a single message. The single message is transmitted from the user equipment to a network element in a wireless network. Another method includes receiving, from a user equipment, a single message including both a message requesting a radio resource connection and a message requesting at least one service. In response to the message requesting radio resource connection, performing radio resource control connection establishment for the user equipment in order to establish the radio resource control connection between the user equipment and at least one of a plurality of network elements of a wireless network.

Abstract: A secondary base station according to an embodiment is configured to connect to a master base station via an X2 interface and for being used for a dual connectivity communication, which is to transmit downlink data from the master base station through a split bearer to a user equipment. The secondary base station comprises: a receiver configured to receive the downlink data transferred from the master base station; a transmitter configured to transmit the downlink data received by the receiver to the user equipment; and a controller configured to determine a release of the split bearer. The transmitter configured to transmit a release request message for requesting the release of the split bearer to the master base station in response to determining the release of the split bearer.

Abstract: Various solutions to Non-Access Stratum (NAS) security and handling of multiple initial NAS messages with respect to a user equipment in mobile communications are described. A user equipment (UE) may transmit a first message regarding a first procedure to a mobile network element, and transmit a second message regarding a second procedure to the mobile network element. The UE may receive a reply from the mobile network element. In response to receiving the reply, the UE may perform one or more operations that result in the second procedure being continued and the first procedure being discontinued.

Abstract: The present invention relates to methods and apparatuses for providing network access, wherein a connection to a core network is established via a wireless access device and a gateway device. Connectivity of the wireless access device is restricted to a pre-defined group of core network address of a pool of gateway devices with multi-node connectivity to the core network, and a single address is selected to establish the connection to a one of the gateway devices. The gateway device is provided with a relay function for mapping a single input address to a plurality of core network addresses based on a location information of the wireless access device and with at least one co-located decentralized core network functionality.

Abstract: Method and systems for managing a communication link. One or more indicators of an expected service interruption associated with a communication link is determined. The communication link may be a link between a relay and a communication target and/or a link between the relay and a user equipment (UE). In response, the UE initiates one or more actions to reduce or avoid the expected service interruption.

Abstract: [Object] To make it possible to prevent a direct connection between unintended wireless communication terminals without distributing identification information of wireless communication terminals. [Solution] There is provided a device including an acquisition unit configured to acquire identification information that is identification information for a direct connection between two wireless communication terminals and is issued by another device that is different from the two wireless communication terminals, and a control unit configured to perform control for the direct connection using the identification information.

Abstract: A communications device comprising a transmitter for transmitting signals representing device-to-device communiations to a second communications device across a wireless access interface, a receiver for receiving signals representing device-to-device communication from the second communications device across the wireless access interface, the wireless access interface including a control resource for communicating control data between communications devices and a data resource for communicating user data between communications devices, the control data providing scheduling assignments for the allocation of resources of the data resource, and a controller for controlling the transmitter and the receiver to perform interference detection in one or more of the control resource and the data resource, and to transmit in the control resources, in response to detecting interference in one or more of the control resource and the data resource, signals representing an indication of the detected interference to the sec

Abstract: Apparatuses and methods for communication are provided. An example solution may include determining a need for requesting channel resources from other user terminals of a group of user terminals for proximity-based communications within the group of user terminals; transmitting a channel resource request to at least one user terminal of the group of user terminals; receiving one or more responses to the request, the one or more responses coming from other user terminals of the group and including information on available channel resources; selecting the channel resources to utilise and starting transmission utilising the selected channel resources.

Abstract: Provided are a method for a device-to-device (D2D) operation performed by a terminal in a wireless communication system, and a terminal using the method. The method comprises: the terminal generating D2D band information which indicates a frequency band supporting the D2D operation; and transmitting the D2D band information to a network.

Abstract: Methods and apparatus for efficiently establishing communications connections, e.g., for a secondary application, are described. A device to device communications network has established routing paths, e.g., corresponding to a first application. Different segments of the network use different gateways. Individual communications devices within a segment of the network may have incomplete information on the routing within the segment. A wireless communications device advertises the gateway device which it uses for the first application. A first communications device seeking to establish a communications connection with a second communications device for a second application uses obtained gateway information to make transmission and/or routing decisions, e.g., identifying a third communications device which can bridge a routing path gap between two segments of the network.