Abstract: A bidirectional wireless communication system includes: a first wireless communication apparatus for bidirectional communication configured to multiplex a modulated signal obtained by modulating an input signal by a reference carrier signal having a predetermined carrier frequency, and transmit a resultant transmission signal; and a second wireless communication apparatus, having an oscillator configured to oscillate a signal having a free-running oscillation frequency, configured to inject a reception signal received from the first wireless communication apparatus into the oscillator, receive the reception signal while variably controlling the free-running oscillation frequency of the oscillator of the second wireless communication apparatus, detect whether the free-running oscillation frequency of the signal of the oscillator of the second wireless communication apparatus has entered the frequency range up to the injection locking to be frequency-locked with a carrier frequency of the injected reception sig

Abstract: In a multi-radio device it is determined that a first radio application requests change to a first operational state during a time at which a second radio application is in or requests a second operational state. A local memory is accessed to determine a first and a second budget of resources for the respective first and second operational states of the respective first and second radio applications. There is at least one common resource among the first and second budgets. From resource allocation rules stored in the memory is determined that each of the common resources are mutually exclusive as between the first and second operational states of the respective first and second radio applications. As a result of the determining from the resource allocation rules, the request of the first radio application is granted by allocating resources according to the first budget for the first operational state while resources according to the second budget are allocated for the second operational state.

Abstract: The present invention provides for a microwave radio communications user device arranged for communication with a base station and for receiving and decoding an MPDU for use in initial ranging signalling with said base station, the device being further arranged to retrieve data in a downlink-sub-frame from the base station serving to discriminate between MPDUs intended for different user devices.

Abstract: A computer platform and computer method may, when a computer platform is in a low-power or sleep mode, operate a wireless communication interface unit to scan for a set of available networks and record the set of networks. When the platform is changed to an operating mode, the platform may use the set of available networks to connect to a network.

Abstract: It provides a method for multicast group management. The apparatus determines a request for joining a multicast service derived during establishment of a connection for carrying multicast service between a first device and a second device, and it sends a message indicative of joining said multicast service based on the request for joining if the multicast service is not available in said network device. As a consequence, it reduces the messages exchanged in unreliable wireless connection so as to reduce the probability of service interruption.

Abstract: A method of a base station transmitting Multicast Broadcast Service (hereinafter referred to as MBS) includes transmitting MBS configuration information, including information about an MBS region which is a resource region to which MBS-related information is allocated and information about an MBS MAP, to a terminal and transmitting MBS data to the terminal through the MBS region. The information about the MBS region includes location information and a transmission parameter of the MBS region. The MBS MAP includes an MBS configuration information change indication which indicates whether the MBS configuration information is expected to change from first MBS configuration information to second MBS configuration information. MBS is effectively and persistently managed in a mobile wireless communication system supporting MBS.

Abstract: Methods of operating a transceiver including an antenna having a plurality of antenna feed elements are disclosed. The methods include receiving a plurality of samples of a receive signal from the plurality of antenna feed elements, estimating locations of a plurality of signal sources from the plurality of receive signal samples, identifying a plurality of interference sources from among the plurality of signal sources, generating a plurality of antenna feed element weights wM in response to the locations of the interference sources, forming an antenna beam from the antenna to the geographic region using the antenna feed element weights wM, and communicating information over the antenna beam. Related transceivers, satellite gateways and satellites are also disclosed.

Abstract: A method of extracting automatic identification system (AIS) message segments from AIS signals received by a satellite. The method includes: (a) receiving AIS signals from satellite antennas; (b) generating multiple versions of the AIS signals; (c) extracting message segments contained within each of the AIS signals using one or more AIS receivers; (d) sorting the message segments by time; and (e) deleting any duplicate message segments. Multiple versions of the AIS signals may be generated by one or more of the following methods: (i) processing the AIS signals multiple times, each time with different AIS receiver parameter settings; (ii) splitting each signal into multiple signals and filtering each of the multiple signals separately; (iii) receiving multiple AIS signals and combining them with different phases and amplitudes to produce a plurality of combined AIS signals; and (iv) removing extracted message segments from the received AIS signals and reprocessing the modified AIS signals.

Abstract: A method of network operations comprises conducting communication activities at a first network device using a shared network medium and having a first coverage area, wherein the communication activities comprise broadcasting a data transmission reservation or receiving a data transmission reservation of another network device during a beacon period; and conducting communications with the first network device at a second network device using the shared network medium; wherein the second network device is configured to provide a second coverage area that is substantially contained within the first coverage area and wherein the second network device does not monitor network communications during the beacon period.

Abstract: A method for execution by a mobile station (MS) in a mobile communications network, the method comprising: receiving a first MS identifier from the network during a ranging operation involving the MS; using the first MS identifier to extract the contents of at least one message received from the network during said ranging operation; using a second MS identifier, different from the first MS identifier, to extract the contents of at least one message received from the network after said ranging operation is complete. Also, a method for execution by the base station, comprising: outputting a first message destined for the MS, the first message including a first identifier for use by the MS during a ranging operation; determining that said ranging operation is complete; outputting a second message destined for the MS, the second message including a second identifier for use by the MS in subsequent communication with the network.

Abstract: In order to transmit data packets in multi-RAT networks, a method and a system of network controllers are proposed comprising: simultaneous establishment of radio connections over multiple different Radio Access Technologies or RATs, with a User Equipment or UE 13, being one radio connection firstly established over one primary RAT under a single PDP context and one or more radio connections established over at least one secondary RAT, different from the primary RAT, and under the same single PDP context; simultaneous transmission of data packets over the different RATs towards the UE 13 and combination of the transmitted data by higher layer protocols at the UE 13. In the present method/system, a connection is established for user plane transmission on the same PDP context between a primary network controller 11 of the primary RAT and the secondary network controller 12 of a secondary RAT. More than one secondary RAT may be involved.

Abstract: A wireless communication system is disclosed. The system performs data transmission from a first terminal including N antennas to a second terminal including M antennas using spatially multiplexed streams (N and M are integers larger than or equal to 2).

Abstract: Multi-user null data packet (MU-NDP) sounding within multiple user, multiple access, and/or MIMO wireless communications. Within communication systems including multiple wireless communication devices (e.g., one or more APs, STAs, etc.), channel sounding of the selected communication links between the various wireless communication devices is performed. A MU-NDP announcement frame is transmitted to and received by various wireless communication devices indicating which of those wireless communication devices (e.g., one, some, or all) are being sounded. Then, respective NDP sounding frames are transmitted via the communication links corresponding to those wireless communication devices (e.g., one, some, or all) are being sounded, and sounding feedback signals are subsequently sent back to the original transmitting wireless communication device.

Abstract: A method, system, and device for network selection are provided. The method for network selection includes the following steps. After network selection is triggered, a network selection list stored in a Universal Integrated Circuit Card (UICC) and a network selection list stored in a Mobile Equipment (ME) are read, where the UICC is embedded in the ME and accessible to the ME. Network selection is performed according to the network selection list stored in the UICC and the network selection list stored in the ME. Also, a method for network selection through a network selection policy is added and methods for implementing a type and a data structure of a network selection policy as well as a method for network selection based on a network selection policy are provided, so that network selection can be controlled more flexibly, a terminal can locate a target network faster, and time consumed for the network selection is reduced.

Abstract: A method of establishing a communication link between a mobile terminal of a wireless network and a subscriber of a network, such as an enterprise network, and/or a residential network.

Abstract: A mobile communication system is provided with a base station device and a mobile terminal, which mutually perform radio communication. The system is also provided with a cell search part provided in the mobile terminal conducting a cell search, and an operation part configured to calculate a period for another cell search based on a period required for the cell search. The cell search part conducts the another cell search during the period calculated by the operation part.

Abstract: Methods and apparatus for coordinated error correction among a set of wireless base stations in communication with one another. In one embodiment, the wireless base stations are part of a cellular network having various cellular base stations (including a serving base station, and multiple supplemental base stations), and transmit multiple redundant versions of a transport block using a Hybrid Automatic Repeat Request (HARQ) based scheme. The aggregate of the multiple redundant versions of the transport block are soft combined and acknowledged (ACK) or not-acknowledged (NACK) by the cellular equipment. The serving base station and supplemental base station devices dynamically configure the bundled acknowledgment operation based on various desired operational attributes relating to the operational parameters of the network.

Abstract: A method, apparatus, and system for providing ad hoc venue-cast content to a plurality of receiving access terminals within a venue boundary. Ad hoc content may be generated at an access terminal, transmitted to a venue-cast server, and broadcast to a plurality of venue-cast receiving access terminals within a venue. In addition to broadcasting the ad hoc content, a notification is given to the plurality of receiving access terminals, notifying them regarding the availability of the ad hoc content.

Abstract: A method and system for a communication device having a network interface card (NIC) for communicating with two networks to dynamically allocate bandwidth between or among the networks.

Abstract: Application service is provided for a subscriber unit (SU), employing a first protocol, in a communication network employing a second protocol. The method includes receiving a CAI OTAR message from the SU. The CAI OTAR message includes at least a key management message (KMM) and a CAI header of the SU. The method then includes determining that the first protocol employed by the SU is different from the second protocol associated with the communication network based on the received CAI OTAR message. The method further includes creating a key management message (KMM) preamble, associated with the second protocol, based on at least one of the CAI header and configuration information of the SU, and creating a data link independent (DLI) OTAR message associated with the second protocol. The DLI OTAR message includes the received KMM.

Abstract: Systems and methodologies are described that facilitate automatically generating interleaved addresses during turbo decoding. An efficient recursive technique can be employed in which layers of nested loops enable the computation of a polynomial and a modular function given interleaved parameters “a” and “b” from a look up table. With the recursive technique, interleaved addresses can be generated, one interleaved address per clock cycle which can maintain turbo decoding performance.

Abstract: The baseband unit includes a first Radio Frequency (RF) coverage unit, a second RF coverage unit, and an interface unit. The first RF coverage unit is configured to communicate with RF devices according to a first communication protocol. The second RF coverage unit is configured to communicate with the RF devices according to a second communication protocol different than the first communication protocol. Further, the interface unit is configured to selectively interface one of the first and second coverage units with the RF devices.

Abstract: A construction is provided for uplink pilot signals in a cellular network. Three sets of pilot signals are defined, having orthogonality properties that lead to reduced inter-cell interference. In example embodiments, the network has a reuse factor of 3 for pilot signals, with sets U, V, and W of pilot signals assigned to cells in respective reuse classes. The pilots of each set form an orthogonal basis. Some pilots of each class, i.e. those which will generally be assigned to mobile stations near the cell edges, will also form an orthogonal basis with some pilots of each of the other classes.

Abstract: Methods and devices are described herein for prioritizing a plurality of packets for potential transmission and in an iterative fashion: i) determining power requirements for control channel signalling associated with a highest priority packet not yet analyzed for resource assignment; and ii) assigning resources for said highest priority packet if sufficient power for control channel signalling is available and sufficient resources for said highest priority packet are available. A further method includes assigning a plurality of users to one of a plurality of signalling groups, wherein said plurality of users within said one of a plurality of groups use a first of a plurality of HARQ interlace offsets for their first respective HARQ transmissions.

Abstract: Embodiments of the present invention may help facilitate improved performance for high throughput, mobile wireless networks, e.g., IEEE 802.16m, mobile implementations for 3GPP Long Term Evolution (LTE) including LTE advanced mobile phone networks, and other types of high bandwidth networks. In some embodiments, provided are orthogonal sequences with desirable correlation properties for, e.g., 4-6 bits of information, among other things, typically achieving improved performance at varied vehicle speeds. In some embodiments, correlation distances for 6 bits may be less than 3.86, for 5 bits may be less than 3.12, and for 4 bits may be less than 1.95. Additionally, in some embodiments, dedicated coding for PFBCH information may be provided to achieve improved performance for most (if not all) information bits at a relatively wide range of vehicle speeds. Different code sequences for different tiles in one PFBCH channel may be applied for same messages to overcome error floors in high speed scenarios.

Abstract: The present invention relates to a method of controlling data and signal transmission in a mobile communication system, and more particularly, to a method of performing random access efficiently and a method of delivering a discard information of radio link data more quickly.

Abstract: A method of acquiring system information in a wireless communication system includes receiving scheduling system information including scheduling information indicating a start time of dynamic system information, monitoring the dynamic system information from a start time of the dynamic system information according to the scheduling system information, and ending the monitoring of the dynamic system information upon receiving a system information end indicator indicating an end time of the dynamic system information. Since an end time of dynamic system information is indicated, a process of acquiring system information can be further effectively performed.

Abstract: In a method of fractional frequency reuse in a communication network, a frequency band is divided into a plurality of sub-bands according to a Fractional Frequency Reuse (FFR) scheme to define a FFR allocation of the band for a plurality of bases stations, each of the base stations being associated with a respective region. At a first base station of the plurality of base stations, the first base station associated with a first region, communication with a mobile terminal in the first region is established on one of the plurality of sub-bands according to the FFR allocation.

Abstract: Embodiments of a wireless communication system and methods allocating bandwidth are generally described herein. Other embodiments may be described and claimed. In some embodiments, an estimated requested bandwidth is included in a contention code. Additionally, a mobile station may reuse a previously used contention code that resulted in successful access to a base station. Further, a base station may determine or predict contention patterns and allocate codes based on the patterns.

Abstract: Methods and apparatus for transmitting and receiving Downlink Control Information (DCI) in a single cell in order to support communication over multiple cells. The DCI is conveyed by DCI formats transmitted through Physical Downlink Control CHannels (PDCCHs) in a UE-Common Search Space (UE-CSS) and in a UE-Dedicated Search Space (UE-DSS). A distinct UE-DSS is defined in the single cell for each of the multiple cells. Each distinct UE-DSS has the same structure as a conventional UE-DSS and a location that is determined by the same parameters as the location of the conventional UE-DSS and by the respective cell identity (Cell_ID).

Abstract: A set of different pilot structures are designed for use in different environments and/or different user behaviours that are expected to occur in a cell. The radio conditions for a user are estimated. Each user is then assigned an area (108A-E) in resource space for its communication, which has a suitable pilot configuration. In one embodiment, the entire resource space is provided with different pilot structures in different parts (110A-D) In advance and allocation of resources to the users are then performed in order to match estimated radio conditions to the provided pilot structure. In another embodiment, allocation is performed first, and then the actual pilot structure is adapted within the allocated resource space area to suit the environmental conditions.

Abstract: A method of mapping symbols of a physical control format indicator channel (PCFICH) is described. A start position of a resource element to map the symbols for the PCFICH is determined by flooring a value, obtained by multiplying the number of resource blocks by a variable proportional to a symbol index for the PCFICH and then dividing the multiplied result by 2, wherein the resource blocks are transmitted in downlink. The symbols are mapped in the start position. Therefore, a problem of wasting resource elements or not being able to implement mapping can be solved by applying a simple mapping rule while mapping symbols of the PCFICH.

Abstract: Networks, devices and methods related to wireless networking. A wireless network using nodes that perform both distribution and backhaul functions is provided. These nodes constitute the key elements of a wireless network that would be deployed and controlled by a wireless network operator. Each node contains a distribution wireless module which is wirelessly coupled to the wireless end user device using a point to multipoint scheme. Also integrated into each node is at least one backhaul wireless module with a directional wireless antenna. Each backhaul wireless module communicates by way of a point to point wireless link with the backhaul module of one other node. The nodes in the wireless network are interconnected to form a mesh backhaul network. Because of the nature of a mesh network, data traffic can be routed around obstacles that may prevent line of site links. Furthermore, the mesh network allows dynamic routing of data traffic to avoid congestion points or downed links in the network.

Abstract: A method for transmitting uplink data according to a dynamic resource request is disclosed. The method includes confirming, at a mobile station, whether a service type for a bandwidth request is sensitive to delay, if the service type is not sensitive to delay, shifting a phase of a fast feedback channel and transmitting the phase-shifted fast feedback channel, if the service type is sensitive to delay or if a bandwidth request grant message corresponding to the phase-shifted fast feedback channel is received from a base station, transmitting a bandwidth request information corresponding to the service type to the base station, and upon receiving an uplink grant message for an uplink resource according to the bandwidth request information from the base station, transmitting data though the uplink resource.

Abstract: A method for a user equipment to perform random access to a base station in a wireless communication system that supports multiple uplink and downlink carriers is provided. In the method, system information including cell identifier information of each of the downlink component carriers and PRACH TF slot and preamble sequence information which is common to all downlink component carriers, the system information being broadcast through each downlink component carrier corresponding to the cell identifier information, is received. A PRACH preamble is transmitted through one uplink component carrier linked to the downlink component carriers using the received PRACH TF slot and preamble sequence information. An RACH response is received through each of the downlink component carriers.

Abstract: Techniques for enabling inter frequency assignment scanning while remaining at one frequency are described. In one embodiment, for example an apparatus may include a wireless interface subsystem, a memory and a processor. The memory may include data and instructions to operate the processor to communicate with a first fixed device at a first frequency during a first communication session, scan for one or more first preambles at the first frequency from a second fixed device and scan for one or more second preambles at the first frequency from a third fixed device. In an embodiment, the second fixed device may operate at a second frequency and the third fixed device may operate at a third frequency. The apparatus may include a processor operative to perform a handover based on the one or more first preambles and the one or more second preambles for a second communication session.

Abstract: A method is provided for establishing a backup interface among multiple interfaces serving a mobile node, for a handover that is undetectable in advance. The invention methodology operates to cause a Foreign Agent associated with the multiple interfaces to keep a binding record of each of the multiple interfaces for which the mobile node has successfully completed the registration process. A novel Mobile IP extension is also added to facilitate the backup FA binding of the invention methodology.

Abstract: A heterogeneous communication system of performing a handover from a WiMAX communication system to a LTE communication system includes a UE adapted to request a handover connection establishment to the LTE communication system while receiving a CS service from the WiMAX communication system, request an authentication to the first WiMAX system, preferentially perform the handover to the LTE communication system, and switch to the LTE communication system in response to a handover message; and a GANC adapted to deliver the request of the handover connection establishment to the LTE communication system, notify the procedure of the authentication to the LTE communication system and provide the handover command message to the UE to switch to the LTE communication system, thereby providing the CS service to the UE through the LTE communication system. A handover from an LTE communication system to a WiMAX communication system is also disclosed.

Abstract: A method is implemented in an anchor eNodeB of a network, where the anchor eNodeB communicates with a self-backhauled eNodeB via a radio interface and where the network further includes another eNodeB. The method includes determining whether a user equipment (UE) is being handed off from the first self-backhauled eNodeB to the other eNodeB. The determining is based on: receiving (820) a message from the self-backhauled eNodeB via the radio interface instructing the anchor eNodeB to stop delivering packets that are destined for the UE, or sniffing (1 105, 1 1 10, 1 1 15) into one or more messages sent from the self-backhauled eNodeB to the other eNodeB to identify that the UE is being handed off from the self-backhauled eNodeB to the other eNodeB. The method further includes storing (1 120), based on the determination of whether the UE is being handed off, received packets intended for the UE: and forwarding (1 120) the stored packets to the other eNodeB via a transport network for delivery to the UE.

Abstract: It is determined whether or not to perform a handover to switch a destination of connection of a mobile terminal (10) from a first radio base station (20) to a second radio base station (30), the mobile terminal holding data communications with the first radio base station (20) by MIMO communications using a plurality of transmission channels. If it is determined to perform the handover, the data communications between the mobile terminal and the first base station are suspended, and communications pertaining to the handover are started between the mobile terminal and each of the base stations by ordinary communications using a single transmission channel. After the completion of the handover, communication mode between the mobile terminal and the second radio base station is switched from the ordinary communications to MIMO communications.

Abstract: A mobile terminal and a method of managing and performing data communication using the same are provided. The mobile terminal effectively performs data communication over heterogeneous networks at a low cost and effectively manages communication modules connected to the heterogeneous network, and the method performs and manages data communication using the mobile terminal.

Abstract: Random access coverage is assured while at the same time supporting high uplink data rates in a same service area served by a base station. A set of radio resources are shared by multiple mobile terminals for transmitting uplink to the base station including requests for access to service from the base station and transmissions for active connections with the base station. A first repeating time period and a second different repeating time period are defined. Uplink transmission grants are scheduled for active connections that permit use of a greater amount of the radio resources during the first repeating time period. Uplink transmission grants are also scheduled for active connections that permit use of a smaller amount of those resources during the second repeating time period. At least some random access requests to the base station are controlled to occur only during the second repeating time period.

Abstract: The present invention provides a method and apparatus for processing a pseudo pilot signal. The method includes: transmitting a data service carrier signal on a first frequency in a first cell to a mobile station (MS); and transmitting a pseudo pilot signal corresponding to a voice service carrier signal on a first frequency in a second cell in at least one timeslot of the timeslots for transmitting the data service carrier signal.

Abstract: The disclosure is directed to a multi-channel encoder. The multi-channel encoder is configured to generate an encoded data stream. The multi-channel encoder includes a plurality of channel encoders, and a processor configured to allocate time slots in the encoded data stream to each of the channel encoders to vary the rate of data provided by each of the channel encoders into the encoded data stream.

Abstract: The claimed subject matter relates to acquiring channel access in a wireless communication environment. A wireless terminal may transmit first and second sets of tones over respective first and second contiguous transmission periods. The first and second tone sets may be disjoint from each other and may each comprise a number of contiguous tones. The terminal may then refrain from transmitting during a third time period in order to receive a grant signal from a base station in response to the access request. The beginnings of the first time period and the second time period may be a function of a determined uplink transmission time.

Abstract: A method for obtaining information includes receiving carrier information and offset information of other carriers carried on a primary carrier, where the offset information includes frame number information, time difference information or window information; and obtaining, according to the carrier information and the offset information, data resources carried on the other carriers.

Abstract: A method for implementing communications in a railroad communications system having a base station radio and remote radios, the remote radios including a mobile radio and a wayside radio. The method includes assigning a common radio communications channel for allowing a remote radio to connect with the base station radio using a carrier sense multiple access (CSMA) communications protocol and assigning a local channel for allowing communications between the radio base station and the remote radios and between the remote radios, wherein communications on the local channel utilizes a selected one of fixed time division multiple access (FTDMA) and dynamic time division multiple access (DTDMA) communications protocols.

Abstract: Embodiments of systems and methods for implementing a contention-based period with configurable parameters such as slot size, and minimum and maximum contention windows in a wireless network are generally described herein. Other embodiments may be described and claimed.

Abstract: Embodiments of systems and methods for Universal System Interface networking are generally described herein. Other embodiments may be described and claimed.

Abstract: Some demonstrative embodiments include devices, systems and/or methods of dual-mode wireless communication. Some embodiments include a wireless dual-mode transceiver capable of operating at first and second wireless communication modes during first and second time periods, respectively, wherein at the first communication mode the transceiver is capable of performing wireless-local-area-network communications over a wireless-local-area-network link, and wherein at the second communication mode the transceiver is capable of performing wireless video communications over a wireless video communication link. Other embodiments are described and claimed.