Abstract: The present disclosure relates to a wireless access system supporting an unlicensed band, and provides a method for configuring a transmission opportunity period (TxOP) and devices for supporting the same. The method for configuring a TxOP in a wireless access system supporting an unlicensed band, according to one embodiment of the present disclosure, can comprise the steps of: performing a carrier sensing step for checking whether a secondary cell (SCell) constituted in an unlicensed band is in an idle state; transmitting a reservation signal for a predetermined amount of time if the SCell is in the idle state; and configuring a TxOP in the SCell. At this time, a start point of a first subframe (SF) included in the TxOP can be matched to a subframe, a slot or symbol boundary of a primary cell (PCell) constituted in a licensed band.

Abstract: Methods and nodes are provided for transmission of information, over at least one antenna port, in a subframe, which information is received by a receiver in a wireless communication system. Demodulation of the information entity by the receiver is enabled by also transmitting a Demodulation Reference Signal, DM-RS, comprising a DM-RS pattern, wherein positions in the DM-RS pattern are associated with at least one antenna port for transmission of the information entity. The method includes defining, for at least one subframe, a set of at least two distinct DM-RS patterns, assigning one DM-RS pattern, from the defined set of DM-RS patterns, to the receiver, and transmitting the information entity on the at least one antenna port associated with the assigned DM-RS pattern.

Abstract: Mixed mode constellation mapping to map a data block to a block of sub-carriers based on a configurable set of one or more constellation mapping schemes, and corresponding mixed mode least likelihood ratio (LLR) de-mapping based on the configurable set of one or more modulation schemes. The set may be configurable to include multiple modulation schemes to provide to a SEvSNR measure that is a non-weighted or weighted average of SEvSNR measures of the multiple modulation schemes. Mixed mode constellation mapping may be useful be configurable to control spectral efficiency versus SNR (SEvSNR) over a range of SNR with relatively fine SNR granularity, and may be configurable to control SEvSNR over a range of SNR at a fixed FEC code rate, which may include a highest available or highest permitted code rate.

Abstract: The present invention discloses a channel reservation method and a communications device. The method includes: generating, by a first device, a first indication frame, where the first indication frame is used for indicating a moment at which a second device sends a channel reservation frame, and the channel reservation frame is used for reserving a channel to be used when the first device sends data to the second device; and sending, by the first device, the first indication frame to multiple second devices. In the channel reservation method, a sender device in a data transmission process indicates a moment at which a receiver device sends a channel reservation frame, so that multiple receiver devices in the data transmission process send channel reservation frames at the same time, which avoids contention between the receiver devices in current data transmission, thereby reducing a collision probability, and reducing system overheads.

Abstract: A method and system for allocating customers in a network includes (a) in a network having a set of N sites, determining a value of N; (b) determining a number of demand requests to be provisioned in the network; (c) determining a currently available capacity of each site of the set of N sites; (d) determining a number of site failures M to be tolerated; (e) Setting a value for a variable X corresponding to a number of sites equal to M+1 where X?N; (f) identifying a topology Tx comprising X sites; (g) calculating a number of concurrent demand requests to be provisioned on each of the X site; and (h) identifying for the topology Tx a subset Sx of the set of N sites having available capacity to provision the number of demand requests to be provisioned on each site. if X<N, incrementing X by one and repeating steps (f) though (h).

Abstract: A methods, base station, wireless device and candidate relay device for supporting a D2D communication between a first wireless device and a second wireless device over a relay. The base station receives (302) from the first device an identity of a candidate relay wireless device and a first quality metric (Geq) pertaining to a first relay link between the first device and the candidate relay device and to a second relay link between the second device and the candidate relay device. The base station also obtains (304) a second quality metric (G12) pertaining to a D2D link between the first and second devices, and a third quality metric (G1 BS) pertaining to a cellular link between the base station and the first device. When the first quality metric (Geq) indicates a better link quality than both the second metric (G12) and the third metric (G1 BS), the base station selects (310) a relay mode for the D2D communication with the candidate relay device as the relay and instructs the involved devices accordingly.

Abstract: Techniques for implementing traffic deduplication in a visibility network are provided. According to one embodiment, a packet broker of the visibility network can receive a control or data packet replicated from a core network. The packet broker can then apply a first stage deduplication process in which the packet broker attempts to deduplicate the control or data packet based on one or more interfaces of the core network from which the control or data packet originated, and apply a second stage deduplication process in which the packet broker attempts to deduplicate the control or data packet based on the content (e.g., payload) of the control or data packet.

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device communicating critical or latency sensitive information may determine that a clear channel assessment (CCA) has failed in a shared radio frequency (RF) spectrum band. The device may then transmit a silencing signal in a managed RF spectrum band, and switch to communicating in the managed band from transmitting in the shared band. Other wireless devices communicating with the first device may receive the silencing signal and may also switch to the managed RF spectrum band. Based on the silencing signal, user equipments (UEs) not associated with the critical communications, but also operating in the managed band, may suspend transmissions in the managed band (e.g., uplink (UL) data), although they may still receive transmissions in the managed band (e.g., downlink (DL) data).

Abstract: A mobile network operator (MNO) may control WiFi QoS. 3GPP has specified control mechanisms for various levels of quality of service (QoS) over the cellular access and core network. Embodiments described herein provide differentiation of WiFi QoS based on MNO requirements. In particular, extensible authentication protocol (EAP) and diameter messages may be extended to include a wireless local area network QoS parameter. This may be used by user equipment to set the uplink 802.11e User Priority (UP) for offloaded or evolved packet core-routed WiFi traffic.

Abstract: A network system includes a first device and a second device coupled to each other that mux and demux data for LSL to HSL transitions. The muxing and demuxing function in the first and second device, respectively, use timing logic from an existing training protocol, such as link training (“LT”). Although LT is used for establishing links between two chips, and has no provision for maintaining port coherency for port-specific input data on one chip to port-specific output data on another chip, the LT does have a uniquely identifiable logic transition in a known data pattern used for LT that can be multi-purposed for syncing the muxing and demuxing of the two interfaced chips, using a predetermined port sequence on both chips to maintain coherency of port-specific data.

Abstract: The present invention relates to a method for determining whether a wireless device is reachable in a cell served by a radio network node. The method is performed in the radio network node. The wireless device is in connected mode in the cell and applies DRX. The method comprises allocating (510) a dedicated random access preamble to the wireless device. The dedicated random access preamble is to be transmitted by the wireless device to indicate that the wireless device is reachable in the cell. The method further comprises transmitting (520) an indicator of the dedicated random access preamble to the wireless device, and monitoring (530) for the dedicated random access preamble from the wireless device. The method also comprises determining (540) that the wireless device is reachable when receiving the dedicated random access preamble from the wireless device.

Abstract: A method and a system are provided for a push service in a communication system. The method comprises: if there is data that is directed from an application server to an application of a terminal, transmitting, to a location register, a first message requesting location information of the terminal; if the location register receives the first message, transmitting, to a gateway, a second message requesting the location information of the terminal; transmitting, to the location register by the gateway, a third message including the location information of the terminal; transmitting, to the application server by the location register, a fourth message including the location information of the terminal; and transmitting, to the application of the terminal by the application server, the data using the location information of the terminal.

Abstract: A method for performing out of band diagnostics and maintenance of lighting system elements. An out of band connection is established via a wireless out of band channel with one of the lighting system elements and the mobile device. The wireless out of band channel is separate and distinct from a wireless lighting operations channel of a wireless lighting control network connecting the lighting system elements.

Abstract: The present invention provides a channel measurement method, a channel measurement apparatus, user equipment. A wireless communications system includes a channel measurement apparatus and at least two user equipments. The method includes: sending, by the channel measurement apparatus, an antenna domain training sequence to the at least two user equipments; receiving, by the channel measurement apparatus, channel response measurement sequences sent by the at least two user equipments, where the channel response measurement sequences are sequences that are obtained after the antenna domain training sequence passes through channels and that are received by the at least two user equipments; and performing, by the channel measurement apparatus, joint processing on the received channel response measurement sequences of the at least two user equipments to obtain downlink channel state information CSIT.

Abstract: The present disclosure provides a processing method and device for obtaining synchronization, where the method includes: selecting, by a UE, a preamble on a first Scell, and reporting information of the preamble to a base station by using a current PCell or a second SCell of the UE; receiving scheduling information of a random access response message or scheduling information of a conflict indication message delivered by the base station from a physical downlink control channel of the PCell, the second SCell or the first SCell by using a C-RNTI of the UE; and receiving the random access response message or the conflict indication message from a physical downlink shared channel according to the scheduling information of the random access response message or the scheduling information of the conflict indication message.

Abstract: The present invention relates to a channel state information (CSI) feedback method and apparatus in a large-quantity antenna system. An embodiment provides a method used in a UE of a large scale antenna system, including: detecting a downlink channel; determining, according to a multipath propagation model, a channel response of a first number of strong propagation paths, where the channel response of each propagation path is determined as a matrix related to the following time-varying parameters: an arrival direction, time to arrive, and a path amplitude; and feeding back the first number and indication information of the time-varying parameters of the first number of strong propagation paths. By using the sparsity of channels of the large-quantity antenna system, the present invention reduces a feedback payload and maintains at least equal system performance.

Abstract: Disclosed are a method for controlling power and an apparatus therefor in a wireless communication system supporting device-to-device (D2D) communication. Specifically, a method for a terminal for controlling the transmission power of a physical sidelink discovery channel (PSDCH) in a wireless communication system supporting D2D communication comprises the steps of: calculating the sum of reception strengths of the total number of PSDCHs received from a set PSDCH reception period; and transmitting the PSDCH, wherein if the sum of reception strengths of the total number of PSDCHs is greater than a previously set threshold value, then the PSDCH to be transmitted is transmitted under the transmission power controlled by the terminal, and if the sum of reception strengths of the total number of PSDCHs is less than a previously set threshold value, then the PSDCH to be transmitted can be transmitted under the maximum transmission power.

Abstract: Embodiments of the present invention provide a method for determining a precoding matrix indicator, a receiving device, and a sending device. The method for determining a precoding matrix indicator includes: selecting, by a receive end, a precoding matrix W from a codebook based on a reference signal sent by a transmit end, where the precoding matrix W is a product of two matrices W1 and W2, where the W1 includes NB block matrices Xi, NB?1, and the W1 is indicated as: W1=diag{X1, . . . , XNB}, where 1?i?NB, and a column xi,j of each block matrix Xi is a Kronecker kronecker product of a first vector Aij and a second vector Bij, that is, xij=AijBij; and sending, by the receive end, a precoding matrix indicator PMI corresponding to the precoding matrix W to the transmit end, so that the transmit end obtains the precoding matrix W according to the PMI.

Abstract: A method and an apparatus establish a trail in a network, where the method includes: in a process of establishing a first trail, adding, by a first ingress node to a first trail establishment response message, an IP address of the first ingress node and an optical domain; and in a process of establishing a second trail, receiving, by the first ingress node, a first trail request message sent by a second ingress node; and sending, by the first ingress node to the second ingress node in the optical domain, information about a trail that is of the first trail and is in the optical domain to which the first ingress node belongs. According to the embodiments, that a trail that is of a working trail and a protection trail are in each optical domain do not overlap can be met.

Abstract: In order to provide a wireless communication system capable of improving the throughput of wireless communication by effectively using frequency resources, in a wireless communication system in which a first wireless access point which communicates with one or more wireless stations within a first cell by orthogonal frequency-division multiple access and a second wireless access point which is capable of performing carrier sensing with the first wireless access point and communicates with one or more wireless stations within a second cell by the orthogonal frequency-division multiple access operate in cooperation with each other, the first wireless access point includes a transmission opportunity acquiring unit which acquires a transmission opportunity when data to be transmitted is generated; and a transmitting unit of permission for use which transmits permission for use of channels which are not scheduled to use within the first cell, to the second wireless access point in a period in which the transmissio