Abstract: A source station for synchronization of transmission and reception of data in a cooperative communication system includes a first receiver to receive, from a destination station, a first request frame including information regarding a first point in time when a first response frame is to be transmitted; a first transmitter to transmit the first response frame to the destination station, at the first point in time; a second transmitter to transmit, to a relay station, a second request frame including information regarding a second point in time when a second response frame is to be transmitted; a second receiver to receive the second response frame transmitted by the relay station at the second point in time; and a time estimator to estimate a first propagation delay time between the source station and the relay station, based on a time in which the second response frame is received.

Abstract: A method of generating a packet of a physical layer transmitter of a TV white space (TVWS) wireless personal area network (WPAN) system operating a WPAN service in TVWS is provided. A packet that is generated by the method of generating the packet includes a preamble, a start frame delimiter that is positioned after the preamble, a first physical layer header that is positioned after the start frame delimiter, and a physical layer service data unit that is positioned after the first physical layer header. Here, the first physical layer header represents whether the packet is a ranging packet for ranging, and includes a ranging packet identification bit corresponding to a reserved bit of the second physical layer header in a SUN system and a LECIM system, and a parity bit.

Abstract: A radio resource control (RRC) message is received by a radio resource control (RRC) device of a user equipment (UE). The RRC message notifies the FDD UE of a high speed downlink shared channel (HS-DSCH) inter-Node B cell change. A reordering buffers of a medium access controller-high speed (MAC-hs) is flushed in response to the receiving the RRC message. A status report is generated for each acknowledge mode (AM) RLC instance mapped to the HS-DSCH by a radio link control (RLC) device after the MAC-hs flushes the reordering buffer. Each status report indicates missing AM RLC packet data units (PDUs). The RRC device sends a “TRANSPORT CHANNEL RECONFIGURATION COMPLETE” message on a DCCH after the RLC device generates each status report.

Abstract: A communication method based on identifying information assignment in a wireless local area network (WLAN) system, performed by a station (STA), is provided. The method includes receiving an identifier assignment message from an access point (AP), wherein the identifier assignment message comprises identifying information for the STA, and TIM offset information for a time point at which at least one traffic indication map (TIM) element for the STA starts to be transmitted; receiving a first TIM element from the AP at a time point indicated by the TIM offset information; determining whether the first TIM element comprises the identifying information; and receiving a first data frame from the AP if the first TIM element contains the identifying information.

Abstract: Systems and methods for the configuration of channel state information reference signals (CSI-RS) are disclosed. The systems and methods include providing user equipment with the locations of CSI-RS reuse information. Several encoding patterns and exemplary methodology for both the identification of the CSI-RS resource element locations are provided in exemplary embodiments. In addition, exemplary embodiments provide muting methods and systems for a physical downlink shared channel resource elements.

Abstract: Various methods and systems for: (i) associating direction-of-arrival of a wireless transmission with an address of an originator of the wireless transmission, (ii) associating directions of incoming transmissions with directions of outgoing transmissions in a wireless communication network, (iii) associating between data from a direction-of-arrival-detector and data from a receiver operating separately, and (iv) associating a relative direction (bearing) of a wireless communication device with its Media-Access-Control (MAC) address.

Abstract: A mobile communication method according to the present invention includes: a step of a mobile switching center MME managing access information that defines accessible CSG-ID of a mobile station UE; a step of the mobile switching center MME accommodating a combination of eNB-IDs and CSG-IDs of a radio base station HeNB2 from a gateway device HeNB-GW; and a step of the mobile switching center MME determining whether the mobile station UE is accessible to the radio base station HeNB2 based on identification information of the mobile station UE and eNB-ID of the radio base station HeNB2 included in “HO Required” received from the radio base station eNB, which are included in the handover request signal, with reference to the access information and the combination.

Abstract: A method and system for selectively re-initiating bearer connections upon communication failure. In a scenario where a gateway provides connectivity with an application server for numerous user equipment devices (UEs), when gateway communication with the application server fails, a determination may be made as to which UEs recently missed communication from the application server, and those determined UEs may be paged to re-initiate their bearer connections and to re-establish gateway registration with an appropriate application server.

Abstract: The present invention relates to a frequency band extending device and method, an encoding device and method, a decoding device and method, and a program, whereby music signals can be played with higher sound quality due to the extension of frequency bands. A bandpass filter 13 divides an input signal into multiple sub-band signals, a feature amount calculating circuit 14 calculates feature amount using at least one of the multiple divided sub-band signals and the input signal, a high frequency sub-band power estimating circuit 15 calculates an estimated value of a high frequency sub-band power based on the calculated feature amount, a high frequency signal generating circuit 16 generates a high frequency signal component based on the multiple sub-band signals divided by the bandpass filter 13, and the estimated value of the high frequency sub-band power calculated by the high frequency sub-band power estimating circuit 15.

Abstract: A Wi-Fi Direct connection method for a plurality of devices and a device having a Wi-Fi Direct connection function are disclosed. The Wi-Fi Direct connection method including connecting the plurality of devices through an access point (AP) for communication, making a request through a first device to a second device from among the plurality of devices through the AP to perform a Wi-Fi Direct connection, changing the state of the second device into a standby mode for the Wi-Fi Direct connection in a response to the request for the Wi-Fi Direct connection, performing provisioning discovery by the first device after making the request for the Wi-Fi Direct connection and exchanging a provisioning method with the second device; and accepting the Wi-Fi Direct connection in response to the second device receiving the provisioning discovery request from the first device which has requested the Wi-Fi Direct connection.

Abstract: A method of generating networks by utilizing a multi-channel so that channels may be efficiently used, inter-channel interference may be avoided, and a network may be energy efficiently managed is provided. Through a super personal area network (PAN) coordinator that manages all networks based on a multi-channel, a PAN capable of avoiding inter-channel interference may be formed. In addition, it is possible to grasp use states of channels used for transmitting and receiving beacon frames, to observe a change in a network topology, and to form an energy efficient PAN.

Abstract: In accordance with one embodiment, a method is implemented in a vectored system for improving a signal-to-noise ratio (SNR) of a far end transmitted signal on a victim line in the system. The method comprises mitigating, by the vectored system, self-induced far-end crosstalk (self-FEXT) on the victim line based on self-FEXT mitigation coefficients and receiving, by a second sensor, information relating to at least one of: self-FEXT of the vectored system, external noise, and the far end transmitted signal. The method further comprises learning, at the second sensor, coefficients relating to self-FEXT coupling into the second sensor and removing self-FEXT from the second sensor based on the learned coefficients. Upon removal of self-FEXT from the second sensor, a linear combiner configured to combine information relating to the victim line and the second line is learned.

Abstract: Methods and apparatuses are provided that include selecting resources for assigning to a device to mitigate relay self-interference when also communicating with a base station. The resources can be selected based on one or more factors, such as based on resources that are negotiated with the base station, or based on resources indicated as not desired for allocation from the base station, etc. In other examples, reference signals and control data can be communicated such as to mitigate relay self-interference as well.

Abstract: An improved system and method are disclosed for peer-to-peer communications. In one example, the method enables two endpoints to directly establish and maintain a communication session after authenticating with an access server.

Abstract: An improved system and method are disclosed for peer-to-peer communications. In one example, the method enables an endpoint to traverse a NAT device using a stateless reflector.

Abstract: A mechanism controls global synchronization, or registration floods, that may result when a large number of endpoints in a Voice over Internet Protocol (VoIP) network such as an Internet Protocol Multimedia Subsystem (IMS) come online simultaneously after a catastrophic failure. The mechanism allows the Domain Name System (DNS) infrastructure to efficiently control the overload condition by registering user end points with backup border elements, and by staggering and by randomizing the time-to-live (TTL) parameter in registrations with backup border elements.

Abstract: A method and apparatus for mobility management, load management, sharing management and configuration update and setup in a mobile network having a first radio access technology node and a second radio access technology node, the first radio access technology node and the second radio access technology node communicating over a backhaul interface. In one aspect the method detects, at the first radio access technology node, that a handover for a user equipment to a new node is required; provides, from the first radio access technology node, handover information to the second radio access technology node over the backhaul interface; and performs the handover of the user equipment from the first radio access technology node to the new node.

Abstract: Embodiments disclosed herein provide systems and methods for alleviating time division multiplexing interference between multiple access nodes. In a particular embodiment, a method provides identifying interference between a first and a second wireless access node at a wireless communication device, wherein the first and second wireless access nodes exchange wireless communications using a time division multiplexing wireless protocol on a first carrier frequency. The method further provides determining an uplink/downlink configuration for the time division multiplexing wireless protocol of the first and second wireless access nodes that does not cause the interference. The method also provides exchanging the wireless communications at the first and second wireless access nodes using the uplink/downlink configuration.

Abstract: A method and apparatus for improving the accuracy of a round trip time (RTT) estimate between a first device and a second device are disclosed. The method involves calculating an acknowledgement correction factor and a unicast correction factor. These correction factors are used to compensate for symbol boundary time errors resulting from multipath effects.

Abstract: A method for initiating a Packet Switched emergency call using a user equipment (UE) is presented. The UE includes a plurality of protocol layers. The plurality of protocol layers including an IMS sublayer, a non-access stratum (NAS) layer and an access stratum (AS) layer. The method includes generating an ATTACH REQUEST using the UE. The ATTACH REQUEST has an attach type. The method includes retrieving the attach type of the ATTACH REQUEST using the NAS layer of the UE, and generating an RRC CONNECTION REQUEST. The RRC CONNECTION REQUEST includes an RRC establishment cause based upon the attach type of the attach request.