Abstract: The invention discloses a hybrid automatic repeat request method of a downlink tunnel connection in a multi-hop relay system. The base station transmits tunnel data, comprising of protocol data, to the access relay station via the tunnel link, and receives feedback until the access relay station receives the data correctly. The access relay station analyzes the protocol data unit of each mobile station, transmits the protocol data to the corresponding mobile station, and performs the corresponding process after receiving feedback from each mobile station. Each hop relay station, except for the station accessing the mobile station, will not transmit the reception acknowledgment information to the base station immediately. The corresponding processing after the access relay station receives the feedback is transmitting the feedback from the mobile station to the base station or, not transmitting the feedback, but applying for bandwidth for retransmission according to the feedback of the mobile station.

Abstract: A ground control apparatus is provided with: a train speed calculation unit that calculates train speed by using train present track position information notified from a train; a predicted passage time calculation unit that calculates a predicted passage time at a previously-stored H/O point based on the H/O point, the calculated train speed, and brake performance; a wireless CH reservation unit that performs processing of reserving a wireless CH of a H/O target wireless base station based on usage of a wireless channel allocated to the H/O target wireless base station and the calculated predicted passage time; and a wireless CH reservation result notification unit that notifies a reservation result of the wireless CH reservation unit to a H/O source wireless base station.

Abstract: Wireless mesh networks (or “meshes”) are enabled for arbitrary interconnection to each other and may provide varying levels of coverage and redundancy as desired. Interoperability between meshes having differing configurations, internal operations, or both, may be freely intermixed and inter-operated in unrestricted combination. Enhanced explicit inter-bridge control protocols operate using pre-existing control packets. Pre-existing broadcast packet floods are used to learn the best paths across interconnected meshes (termed a “multi-mesh”). Enhanced routing protocols operating within each mesh may optionally examine information limited to the respective mesh when forwarding traffic, thus enabling robust multi-mesh scaling with respect to memory and processing time required by the routing protocols. Communication scalability is improved by enabling frequency diversity across the multi-mesh by configuring meshes within interference range of each other for operation at a plurality of frequencies.

Abstract: In an example embodiment, a serving cell is configured to serve a plurality of user equipments (UEs). The serving cell includes a detector, a receiver and a processor. The detector may measure interference on a physical resource block (PRB) at the serving cell. The receiver may receive measurements of interference on the PRB from neighbor cells of the serving cell. The processor may estimate a contribution from each UE of the plurality of UEs to each of the interference measurements received from the neighbor cells, determine for each UE of the plurality of UEs a respective enhanced priority ratio and assign the PRB to one of the plurality of UEs based on the determined enhanced priority ratio. The enhanced priority ratio may be a function of the interference measurement at the serving cell, the interference measurements received from the neighbor cells and the respective estimated contribution of the UE.

Abstract: A method for generating a forbidden channel list for a combined wireless communication station comprises the steps of: obtaining a channel usage report from an access point; performing a channel scan procedure; generating at least one of a channel load report, a noise indicator report, a signal strength indicator report and a packet error rate report according to the results of the channel scan procedure; and generating a forbidden channel list at least according to the generated one of the channel usage report, the channel load report, the noise indicator report, the signal strength to report, and the packet error rate report.

Abstract: A method, system and computer readable medium for bidirectional translation of edge network virtualization encapsulation and core network virtualization encapsulation are described. The method can include receiving a customer data frame and removing an edge network virtualization encapsulation header (e.g., VXLAN, NVGRE or VLAN header) and adding a core network virtualization encapsulation header (e.g., a MAC-in-MAC header). The customer data frame can be forwarded in a core network (e.g., an SPBm network) utilizing the core network virtualization encapsulation header, which can be translated back to an edge network virtualization encapsulation header at a receiving switch.

Abstract: A system and a protocol enable transmission between two TCP peers that exist behind one or more firewalls and network address translators NATs to automatically setup a true peer-to-peer TCP connection and exchange data without making changes to the firewall or NAT devices or existing TCP-based applications. In embodiments of this invention, the synchronization between the blind TCP peers is achieved using a system that consists of a registration server, an agent application, and a virtual network interface that together relay and replicate the control signals between the two TCP peers. In addition, embodiments of this invention are also used to traverse the NAT and establish a bi-directional peer-to-peer TCP connection in the firewall.

Abstract: A method for quantizing a relative phase and a relative amplitude is described. A received symbol is obtained. A relative phase is determined from the received symbol. A relative amplitude is also determined from the received symbol. A quantized relative phase is obtained for the relative phase. A quantized relative amplitude is obtained for the relative amplitude.

Abstract: DSL backchannel data and/or information is transported upstream in a vectored, bonded line DSL system. Backchannel data (e.g., error samples or the like from downstream-end DSL equipment) is encapsulated/packetized using Layer 2 encapsulation. Upstream user data is packetized into Ethernet packets or the like. The backchannel data and upstream user data are combined and the combined data transmitted to an upstream-end DSL apparatus, such as an access node. The combined data are separated in the upstream-end DSL apparatus so that the upstream user data can be processed further. The Layer 2 encapsulated backchannel data is decapsulated and then routed to a vectoring control entity or the like for use in operating the DSL system, for example in mitigating FEXT crosstalk in the DSL system's operation.

Abstract: A method for parallel acquisition of system information from multiple base stations may be implemented by a mobile station. The method may include determining scheduled times for transmission of the system information from the multiple base stations based on parameters included in messages from the multiple base stations. The method may also include creating a schedule list that comprises the scheduled times. The method may further include tuning to the base stations at the scheduled times that are specified in the schedule list in order to receive the system information from the base stations.

Abstract: The present invention provides a method and system for transmitting and receiving Fragmentable Data Units (FDUs) in a wireless communication environment. In one embodiment, a method of transmitting FDUs in a wireless communication environment includes fragmenting a FDU into a fixed number of fragments by a transmitting device. The method further includes packing the fragments of said FDU in payloads of Medium Access Control (MAC) Protocol Data Units (PDUs). Additionally, the method includes encoding control information of each fragment of said FDU in a fragmentation control (FC) field and a sequence number field of the respective MAC PDU. Moreover, the method includes transmitting the MAC PDUs containing the fragments of said FDU and control information associated with the fragments to a receiving device.

Abstract: Systems and methodologies are described that facilitate packet routing among relay eNBs in a wireless network. A donor eNB can create at least a portion of a tunnel endpoint identifier (TEID) for a relay eNB communicating with a UE or other device. In addition, the relay eNB communicating with the UE can create a portion of the TEID. Upon receiving packets with a TEID, the donor eNB can route the packets to downstream eNBs based on the portion of the TEID that it created. Other downstream eNBs can continue to route packets to next hop eNBs based on the portion of the TEID created by the donor eNB or the downstream eNBs themselves. The relay eNB communicating with the UE can route packets to the UE based on the portion of the TEID it created and/or the portion created by the donor eNB.

Abstract: Disclosed are systems, methods, and non-transitory computer-readable storage media for implementing a conference foyer for conferencing. The system receives a request to join a conference call that is hosted on a specific conference server. The system receives the request via a call from a caller using a specific phone number. The system is a back-to-back user agent configured to transfer requests to one or more SIP-based conference servers. Based on the request, the system identifies a specific conference server hosting the requested conference. The system uses a conference code included in the request to identify the specific conference server hosting the conference call. The system then transfers the call to the specific conference server, which can join the call to the conference requested by the caller. This approach provides a flexible, efficient, and scalable way to increase the number of conference calls associated with a specific phone number.

Abstract: A spatial multiplexing wireless transmission system is formed by a base station, and by a plurality of terminal stations that are provided with a plurality of antennas. The base station is provided with an information signal generating portion, a control signal generating portion, a transmission frame generating portion, a multiple beamforming portion, a transmission/reception switching portion, a reception signal processing portion, a propagation environment estimating portion, and an antenna information generating portion. At least one of the terminal stations is provided with a transmission/reception switching portion, a reception signal processing portion, a decoding portion, an antenna information extracting portion, an antenna information generating portion, an transmitting portion, a battery, a remaining battery detecting portion, a transmission request extracting portion, and a propagation environment estimating portion.

Abstract: A first GW function block (6) transmits packet data to a first base station (1). A second GW function block (7) is able to communicate with the first base station (1), a second base station (2), and the first GW function block (6). A control function block (5) signals information related to a communication path configuration to transfer the packet data. Setup of a communication path, to transmit the packet data to the base station (1) from the GW function block (6) through the GW function block (7), is performed based on first packet data communication information signaled by the control function block (5).

Abstract: The present invention is aimed to provide a mechanism whereby a roaming user can select a visited network allowed for roaming by the home network operator among a plurality of visited networks accessible through an access network. Therefore, the present invention provides a new method, a new roaming device likely embedded in another network entity and enhanced user equipment whereby the home network, upon a user equipment indication, may submit towards the user equipment a list of allowed or preferred visited networks as well as selection criteria for selecting one visited network from the list.

Abstract: To reduce latency in accessing a wireless communication system, which is highly desirable for time sensitive applications such as push-to-talk call, a wireless device performs an overhead update procedure and a transmit clock synchronization procedure in parallel. The overhead update procedure obtains up-to-date overhead information from the system, such as access parameters used to access the system. The transmit clock synchronization procedure updates transmit timing to current system time, e.g., resets a long or scrambling code and pseudo-random number (PN) sequences used to transmit signaling to the system. After the overhead information has been updated and the transmit clock synchronization procedure has been completed, the wireless device performs an access probe procedure to send signaling (or access probes) to the system to attempt to access the system.

Abstract: Mechanisms are provided to allow efficient delivery of content through a content delivery network (CDN) without taxing an origin server while maintaining fine grained location based access control. Requests to a CDN are augmented with quantized and non-quantized versions of location information. A CDN can use quantized location information in a URI to identify and return content if content corresponding to the URI is available in cache. If the content is not available in cache, the CDN can contact an origin server to obtain a result for the request using non-quantized location information. The origin server examines the non-quantized location information to determine whether to respond to the client request with content. The origin server examines the area corresponding to the quantized location information to determine whether the content should be cached at the CDN.

Abstract: Techniques for provisioning computing resources utilize colorings of collections of resources. The collections may be networks of resources hosted by a computing resource provider that are operated under the direction of one or more customers of the resource provider. Colors may be applied to the collections of resources, such as by a customer of the resource provider. The same customer or another customer may request that resources be provisioned according to at least one relationship with one or more collections of resources having one or more colors. Resources may then be provisioned according to the request.

Abstract: An asynchronous master-slave serial communication system, a data transmission method, and a control module using the same are disclosed. The asynchronous master-slave serial communication system comprises a master control module and a slave control module. The master control module generates a check code according to an address information and a data information, and generates a data package according to the address information, the data information, the check code and the master clock signal. The slave control module generates a decoding data according to the data package and a slave clock signal, and generates the address information, the data information and the check code according to the decoding data.