Abstract: Provided is a radio communication device which can suppress inter-code interference between an ACK/NACK signal and a CQI signal which are code-multiplexed. A diffusion unit (214) diffuses the ACK/NACK signal inputted from a judgment unit (208) by using a ZC sequence. A diffusion unit (219) diffuses the CQI signal by using a cyclic shift ZC sequence. By using a Walsh sequence, a diffusion unit (216) further diffuses the ACK/NACK signal which has been diffused by using the ZC sequence. A control unit (209) controls the diffusion unit (214), the diffusion unit (216), and the diffusion unit (219) so that the minimum value of the difference between the CQI signals from a plurality of mobile stations and a cyclic shift amount of the ACK/NACK signal is not smaller than the minimum value of the difference between the cyclic shift amounts of the ACK/NACK signals from the plurality of mobile stations.

Abstract: Embodiments of the present invention provide a method, a device, and a system for creating a bidirectional multicast distribution tree based on an interior gateway protocol, the method includes: generating, according to a root address of a first node flooded by the first node through an IGP and a shortest path tree algorithm, a shortest path to another node with the first node as a source node, and constructing a flooding tree according to the shortest path; and when receiving layer 3 multicast group information flooded by an edge node, determining, according to the layer 3 multicast group information and a multicast group range that is supported by the first node, a flooding tree corresponding to each layer 3 multicast group, and performing pruning, according to the layer 3 multicast group information, to the flooding tree corresponding to each layer 3 multicast group, to generate a bidirectional multicast distribution tree.

Abstract: A method that incorporates teachings of the subject disclosure may include, for example, transmitting a first request for an identity of a first regional name authority pointer server of a plurality of regional name authority pointer servers to a national domain name system server responsive to determining that a name authority pointer associated with a telephone number is not stored in cache memory, transmitting a second request for the name authority pointer to the first regional pointer server identified by the domain name system server, where the first regional name authority pointer server corresponds to a geographic region associated with the telephone number, and receiving the name authority pointer from the first regional name authority pointer server. Other embodiments are disclosed.

Abstract: Embodiments are provided for processing a voice-based communication request intended for a destination electronic device that is connected to an on-board communications network. According to certain aspects, a data center can receive the voice-based communication request that is initiated by an originating device. The data center can determine that the destination electronic device is registered with the on-board communications network and generate an audio unavailable message that indicates the unavailability of the destination electronic device. Using a communication channel that is established with the originating electronic device, the data center transmits the audio unavailable message to the originating electronic device to inform its user that the voice call cannot be connected.

Abstract: Methods, apparatuses, and systems are described that implement techniques and protocols to enable a station to receive a neighbor query request from a first associated access point that is associated with the station. The station may wirelessly communicate a neighbor report of a second access point to the first access point while the station is unassociated with the second access point.

Abstract: A method for configuring a channel state information reference signal includes dividing access points into a first access point set and a second access point set, configuring a first CSI-RS pilot pattern for a user equipment and allocating the pattern to the first access point set, configuring a second CSI-RS pilot pattern and allocating the pattern to the second access point set, and configuring a third CSI-RS pilot pattern and allocating the pattern to an antenna set formed by a first antenna of a first access point in the first access point set and a first antenna of a first access point in the second access point set; and sending non-zero power CSI-RS configuration information to the user equipment, so that the user equipment measures and reports first downlink channel state information, second downlink channel state information, and third downlink channel state information of the antenna set.

Abstract: Provided is a method for mitigating inter-cell interference generated by the collision of UL transmissions and DL transmissions between adjacent cells in an asymmetric time division duplex (TDD) communication system. The present invention removes or reduces time-frequency resources for UL transmissions which collide with DL transmissions of an adjacent cell, and thus can mitigate inter-cell interference.

Abstract: In one embodiment, an intermediate node in a contention-based shared-media computer network determines a scheduled window within which a packet (with an assigned priority) should be transmitted by the intermediate node. In particular, the intermediate node may specifically determine whether an actual transmission time is prior to, during, or after the window, and sets a priority of the packet as either i) a reduced priority when the actual transmission time is prior to the window, ii) the assigned priority when the actual transmission time is during the window, or iii) an augmented priority when the actual transmission time is after the window. As such, the intermediate node may then transmit the packet from the intermediate node with the set priority at the actual transmission time.

Abstract: In one embodiment, a device in a network receives a message from a neighboring device that identifies the electrical phase on which the message was sent. Crosstalk is identified between the device and the neighboring device by determining that the message was received on a different electrical phase than the phase on which the message was sent. One or more distinct communication channels between the device and the neighboring device are identified based on the identified crosstalk with each communication channel including or more electrical phases.

Abstract: The present disclosure relates to a network routing overlay (NRO) system. The NRO system includes an NRO master that includes an NRO master module and a master network interface. The NRO system further includes a first plurality of NRO remote systems (RSs). Each NRO RS includes an NRO RS module, an internal network interface and an external network interface. The external network interface is related to an NRO interface. Each NRO RS is coupled to the NRO master by a respective data channel and a respective control channel. A first NRO RS is configured to receive a network frame from an end system coupled to the first NRO RS via a first NRO interface. A first NRO RS module is configured to generate an NRO message and to write the NRO message to a first data channel. The NRO message includes an NRO prefix and the received network frame. The NRO prefix includes a length and a frame identifier (ID). The first data channel is configured to carry an NRO frame that includes one or more NRO message(s).

Abstract: A method and device for performing channel access in a wireless LAN are disclosed. An initial channel access method of a station STA in a wireless LAN may include: receiving, from an access point (AP) by the station STA, a frame including information on a channel state, information on a channel access protection section and information on a station STA capable of performing channel access in the channel access protection section; determining a channel access priority by a station STA when the information on the channel state indicates that a wireless link is in a congestion state; and performing initial channel access in the channel access protection section based on the channel access priority determined by the station STA and the information on the station STA capable of performing channel access in the channel access protection section.

Abstract: A method and arrangement in a Radio Network Controller (RNC) for monitoring radio link (RL) synchronization for each RL as soon as it is added to a User Equipment's (UE's) Active Set. When a new RL is added, each RL in the Active Set sends an Active Set Update Complete message to the RNC. When the RNC determines that a Radio Link Restore Indication message is not received from the Target NodeB serving the new RL, the RNC starts an initRlSyncT timer set for a defined time period and monitors incoming messages to determine whether the Radio Link Restore Indication message is received for the new RL before the initRlSyncT timer expires. If so, the method ends; but if not, the RNC instructs associated NodeBs and the UE to remove the new RL from the UE's Active Set.

Abstract: The present disclosure is directed to a user equipment and a base station which use a dynamic time division duplex (TDD) configuration mechanism. The present disclosure proposes implementing the dynamic TDD mechanism by imposing a restriction to the dynamic TDD configurations to adhere to a set of allowable dynamic TDD configurations. The uplink and downlink HARQ timing reference configurations could be derived from the set of allowable dynamic TDD configurations. The set of allowable TDD configurations, the uplink HARQ timing reference configuration and the downlink HARQ timing reference configuration could be derived based on specific rules. The maximum number of downlink HARQ processes for TDD would follow the downlink HARQ timing reference configuration.

Abstract: The invention relates to a method for connecting a mobile node (1) comprising a plurality of network connection interfaces (11a, 11b) to at least one network (3) using the mobile internet protocol with the following steps for the respective interfaces (11a, 11b): —the mobile node (1) retrieves a local IP address (CoAa, CoAb) and at least one DNS server (5, 5a, 5b) address using DHCP on the interface (11a, 11b), —the mobile node (1) stores in a list the at least one returned DNS server (5, 5a, 5b) address, —the mobile node (1) queries the at least one DNS server (5, 5a, 5b) which has its address stored in the list for home agent service and receives either a “service not supported” failure notification or the address of at least one home agent (9a, 9b) reachable on the interface (11a, 11b),—the mobile node (1) stores in the list the results of the query, either “service not available” or the home agent (9a, 9b) addresses returned for the respective DNS Servers (5, 5a, 5b) inquired, —the mobile node (1) obtains

Abstract: A method for an enabler entity to indicate an event to a manager entity includes transmitting, from the enabler entity to the manager entity, an event indication message indicating an event in a device served by the enabler entity. The enabler entity enables communication between the device and the manager entity and the manager entity exchanges information required for coexistence between enabler entities comprising the enabler entity. The event indication message includes type information indicating that the event indication message is for indicating that a specific device is detected by the device, the specific device operating on a frequency not permitted to the specific device.

Abstract: The method includes sending a Sync message from a first peer-to-peer transparent clock to a second peer-to-peer transparent clock, estimating the path delay of the transmission path traveled by the synchronization message from the first to the second peer-to-peer transparent clocks, and taking this path delay into account for updating the time information carried by a synchronization message. The estimating includes creating a list of the network addresses of the network interfaces traversed by the synchronization message; ordering the first list into the order in which the network interfaces have been traversed by the Sync message; creating a second list by reversing the order of the first list; communicating the second list to the second peer-to-peer transparent clock; and using the mechanism available at the transport protocol level, to constrain the respective paths of Pdelay_Req and Pdelay_Resp messages so that their respective paths map to the second and first ordered lists of traversed interfaces.

Abstract: A method, device and system are used for transmitting a Multimedia Broadcast Multicast Service (MBMS). The method includes sending, by a first base station, a service identifier of a MBMS that needs to be received by a user equipment in a coverage area of the first base station to a gateway. The first base station receives a data packet of the MBMS and a synchronization control packet on a first multicast channel which are sent by the gateway. The first multicast channel is a multicast channel where the MBMS is located.

Abstract: Techniques are disclosed for signaling a pattern of cyclic shifts and orthogonal cover codes for use by a wireless device in multi-layer transmissions. In one example method, a signal includes B bits for identifying a reference signal is received, wherein each of several available reference signals is defined by a cyclic shift and an orthogonal cover code. The B bits are used to identify the cyclic shift and orthogonal cover code according to pre-determined tables that map each value of the B bits to a pattern of cyclic shift and orthogonal cover code combinations for a multi-layer transmission scheme. The patterns for the multi-layer transmission scheme include first and second patterns based on the same cyclic shifts, but where some, but not all, of the cyclic shifts in the first pattern are associated with the same corresponding orthogonal cover codes in the second pattern.

Abstract: Systems, mechanisms, apparatuses, and methods are disclosed for dynamically tagging VLANs. For example, in one embodiment such means include: means for receiving a packet having identified therein a source Media Access Control (MAC) address and a Virtual Local Area Network (VLAN) Identifier, wherein the VLAN identifier corresponds to a VLAN which is non-existent on a network switch; means for modifying the packet received to include two VLAN tags, a first VLAN tag corresponding to the VLAN identifier identified within the packet received and a second VLAN tag, distinct from the first; means for determining no forwarding database entry exists for the modified packet; and means for creating the VLAN on the network switch to handle received packets tagged with the VLAN identifier.

Abstract: The present disclosure provides a secure one-step IEEE 1588 clock using either a symmetric or asymmetric protection scheme. Clocks of mission-critical or highly-available devices in industrial automation systems connected to a communication network are synchronized by sending, by a master clock, a synchronization message, e.g., a single message of the one-step-clock type according to IEEE 1588, including a time stamp, and by receiving and evaluating, by a slave clock, the synchronization message. A synchronization component or module of the master clock prepares, or composes, prior to a projected send time, a synchronization message including a time stamp of the projected send time, and secures the synchronization message in advance of the projected send time. Securing the synchronization message occurs by suitable cryptographic means allowing for authentication of the time stamp at a receiving slave clock. At the projected send time, the secured synchronization message is transmitted.