Abstract: Methods and systems for enabling coexistence of multiple potentially interfering wireless components in a device are provided. A device may include a wireless module using a proprietary protocol and one or more modules using standardized protocols. The device further includes a coexistence arbitration module configured to arbitrate access to a shared communication medium among the wireless modules based on assertion of medium access requests by the modules and the associated priority of the asserted medium access requests. When multiple medium access requests have the same priority, precedence for access to the shared medium is determined based on additional criteria. The coexistence arbitration module may be a separate module or may be integrated into another module or distributed among the modules. The device may include a host processor for altering transmission characteristics of a module to increase the likelihood that another module can receive data within a reasonable time period.

Abstract: In a packet transmission system, especially wireless transmission system, where data is transmitted in packets at different error protection levels and where the error protection level of one packet (=the succeeding packet) may differ from the error protection level of a preceding packet without providing code termination between the said preceding and the said succeeding packet the performance may degrade in case a different error protection level is used by the preceding packet and the succeeding packet. The invention proposes in these cases to insert a supplementary packet between the preceding and the succeeding packet whereby the error protection level of the supplementary packet is higher than the lowest error protection level that is used either by the preceding or the succeeding packet.

Abstract: A device for determining network parameters may include one or more antennae and a processor. For example, the device may include multiple antennae so that direction information for one or more wireless network sources may be determined. Network parameters may include security information for the network, network name information, and/or other information. The processor included in the device may not be configured to transmit and receive information on an information communication connection with the wireless network source(s); for example, the device may be a stand-alone device separate from a user device (such as a personal computer) configured to transmit and receive information on an information communication connection with the wireless network source(s). In other embodiments, the device may be at least partially integrated with a user device (e.g., may have a separate processor but be included in a user device housing).

Abstract: A method of telecommunication network switch port polling enables very highly channelized ports to be polled. A polling engine reads information from at least one of a plurality of poll registers, and each of the plurality of poll registers is associated with a unique identifier. Depending on the information read from the at least one poll register, the polling engine reads a channel number representing the channel to be polled from a location in channel memory. The polling engine determines the location from the unique identifier associated with the at least one poll register from which the information is read. The polling engine polls channel represented by the read channel number.

Abstract: A wireless communication system capable of saving time for mutual data communication in a sniff mode. The wireless communication system has: a master apparatus for calculating a sniff parameter including a time of a sniff period capable of performing the communication by allowing a corresponding device to commonly have the time in the sniff mode, when a communication mode for a mutual data communication by a user is selected to be operated in the sniff mode; and a sniff slave apparatus for performing the mutual data communication with the master apparatus by commonly having a corresponding time calculated in accordance with the sniff parameter. At this time, the sniff parameter includes at least one among a cyclic information, an allocated time information of the sniff period, and a start time information in which the master apparatus communicates with the sniff slave apparatus operated in the sniff mode.

Abstract: An advance over the prior art is achieved through an efficient method to retransmit erroneous frames by identifying the users who are most likely to experience a frame error and requests retransmissions from them. Since the recovery is done by starting with the most likely, second most likely etc., the invention results in faster recovery of data. Moreover, the invention reduces the battery consumption of subsequent mobile nodes by suppressing the retransmission requests that were already made by nodes preceding it. A key element of the invention is to rank the set of receiver nodes in the order of decreasingly worse channel conditions, i.e., from worst to best. Hence, with K receiver nodes, a transmit node assigns rank 1 to a receiver node to which it has the poorest radio channel condition. Similarly, it assigns rank K to the receiver node to which it has the best radio channel condition.

Abstract: An RFID tag population is selected by an interrogator. Each tag of the selected tag population then responds to the interrogator in accordance with a slotted arbitration scheme. According to the slotted arbitration scheme, each tag of the selected tag population picks its own random value from a range of integers indicated by the interrogator. The random value corresponds to a slot. The interrogator may indicate that the range of integers is to be adjusted. Each tag of the selected tag population responds to the interrogator with a random number.

Abstract: Provided are a channel time allocation method and apparatus adopting the same. The channel time allocation method includes: (a) receiving a request of registering in a network from a device; (b) determining whether the network supplying a service required by the device exists; and (c) if the network supplying the requested service exists, performing a procedure of registering in the network, and if the network supplying the requested service does not exist, generating a new network. Since existing MAC protocols can be used in the channel time allocation method, an optimum service is provided in a network environment in which different kinds of services coexist.

Abstract: Methods, apparatuses and systems facilitating the configuration of transmit power and coverage areas corresponding to access points in a wireless network environment. The present invention in one embodiment facilitates the dynamic configuration of coverage boundaries across a plurality of access points, improving the performance of the wireless network environment.

Abstract: A method for transmitting data in a data transmission system comprising a first node and a plurality of second nodes, the first node being arranged to address the second nodes in a predetermined order, and each second node being arranged to transmit data to the first node immediately after having been addressed by the first node; the method comprising: if a second node has data to transmit to the first node and another second node in the order did not transmit data to the master in its previous opportunity to do so, forwarding at least some of the data from the said second node to the said other second node for transmission to the master via the said other second node.

Abstract: A system for dispersing the load of a network that can avoid local traffic congestion in a communication route within a broadband network is provided.

Abstract: The MAC layer of a wireless communication standard is modified to facilitate MIMO (multiple input multiple output) processing and thereby increase capacity and/or spectral efficiency. In one implementation, the IEEE 802.11a standard is modified in this way. A contention free period (CFP) is divided between MIMO communications and non-MIMO communications. An access point may maintain a list of nodes operating in MIMO mode and nodes operating in non-MIMO mode.

Abstract: A method is disclosed for implementing and reporting network measurements between a source of probe packets and an element, such as a router. The invention exploits commonly implemented features on commercial elements. By exploiting these features, the expense of deploying special purpose measurement devices can be avoided. In one aspect of the invention, a plurality of probe packets is transmitted in a packet network with each of the probe packets having the same key and the same aggregation characteristic. A report is then received from an instructionless element regarding the plurality of probe packets, thereby enabling measurement of a parameter of the packet network.

Abstract: The present invention discloses a role exchange method for Bluetooth system. It comprises the steps of: a first slave asking role exchange and transmitting a FHS packet to a first master at a first time point t1; the first master exchanging as a second slave at the second time point t2; the first slave re-transmitting a plurality of FHS packet; and the first slave exchanging as a second master automatically. The role exchange method according to the present invention can solve the failure problem of role exchange procedure due to the noise in the conventional Bluetooth scheme.

Abstract: An apparatus and method for managing device information through networks. The apparatus for managing device information through networks includes a polling list for storing polling information including device IP addresses assigned to home devices, polling intervals, and last polling times; a poller for checking the polling list and sending out a polling list listing devices to be polled; and a message processor for generating a polling message based on received registration request messages from the home devices, sending out the polling message verifying whether corresponding devices are activated with reference to the polling list, and updating the polling information stored in the polling list based on a response message with respect to the polling message received from the home devices. As different polling intervals are used with respect to devices existing on a home network, the reliability of device information improves and network traffic reduces.

Abstract: A polling communication system includes a main station and a plurality of sub stations connected to the main station. The main station includes an address control part and a polling control part. The address control part divides a predetermined polling cycle into a plurality of kinds of polling intervals each having a different number of times of polling, and holds addresses of polling target sub stations corresponding to the respective polling intervals. The polling control part switches the polling intervals and changes the addresses in the address control part according to states of the sub stations. Each of the sub stations includes another polling control part that sends a response when the sub station is polled by the main station.

Abstract: By providing a interference power estimation unit obtaining the power of interference in a common pilot signal with ten symbols in one slot and outputting the power of interference as the estimate of the amount of interference in the data signal's pilot signal and a signal-to-interference power ratio calculation unit calculating a signal-to-interference power ratio (SIR) using an output of the interference power estimation unit, in a spread spectrum communication method, a correct SIR can be estimated even when the number of symbols of an individual pilot signal in the slot of the data channel is small.

Abstract: Disclosed is a scalable, hybrid mobile network termed the Metropolitan Area Mobile Network (MAMN) based on a new dynamic mobile network protocol-DynaMo. DynaMo supports TCP/IP based communication between nodes, whether they are moving or stationary. DynaMo is a location-based routing technique that integrates MAMN, with wired TCP/IP networks (such as the Internet). Through the disclosed use of a modified Domain Name Services (DNS), communication between wired and wireless nodes, moving or stationary, is supported and is transparent to the end-user. DynaMo supports the use of multiple channels and implements a scheme for channel reuse. A hybrid encryption mechanism, based on public/private key pairs enables signed and secure communication.

Abstract: A wireless communication system according to the invention is to perform communication with a terminal station at a radio frequency higher than a millimeter wave band. The wireless communication system includes, as transmission devices to the terminal station, a center station device which forms a baseband signal to the terminal station and a plurality of access point devices which receive delivered signals from the center station device and emit radio waves to the terminal station. Cover areas of the access point devices partially overlap to constitute a service area to the terminal station by all the cover areas. In this manner, a frequency higher than a millimeter wave band is applied to wireless communication to the terminal station to make it possible to widen the service area.

Abstract: Embodiments of the present invention comprise systems and methods for providing transmission priority to stations in a wireless LAN system.

Abstract: A wireless control system uses wireless communications that include a plurality of channels and that are shared between a plurality of wireless communication devices. The wireless control system generates and transmits a first control message that allows first access to one of the channels for one of the wireless communication devices. The wireless control system waits a period of time based on a rate of control message transmissions. In response to an expiration of the period of time, the wireless control system generates and transmits a second control message that allows second access to the one of the channels for another one of the wireless communication devices.

Abstract: A control apparatus for controlling a wireless communication system, which provide enhanced communication efficiency when a single apparatus performs a plurality of wireless communications. A timing signal generation logic circuit generates transmission and reception timing control signals for controlling timing of transmission and reception by respective ones of a Bluetooth module and a wireless LAN module based on respective states thereof. MAC sections of the respective modules control transmission and reception by the respective ones of the Bluetooth module and the wireless LAN module, based on the respective corresponding transmission and reception timing control signals generated by the timing signal generation logic circuit.

Abstract: A computer-implemented transmission scheme is provided to control client-server interchanges within a distributed communications network, such as a real time opinion research system. Interchanges include transmitting media streams between one or more clients to a server over a computer network, including the global Internet. A polling management unit sets and manages the transmission mode that includes event-driven and periodic interchanges. Periodic interchanges can be simultaneously or staggeredly transmitted to a sampling pool of active clients. A transmission mode unit implements the transmission scheme set by the polling management unit. A parameter selector establishes the transmission interval and transmission period which are used to trigger each communication interchange. A client assignor creates one or more sampling classes from the sampling pool by applying a sampling quotient that is generated by the parameter selector. A schedule editor produces a transmission schedule for the active clients.

Abstract: The present invention is addressed to method and apparatus for establishing a wireless communications network utilizing portable solar powered access points. Each access point includes a solar panel connected to a base unit containing-one or more charge storage assemblies. A charge controller controls the recharging of the charge storage assemblies. Also contained within the base unit is an access point. A voltage control device controls the flow of electrical charge from the charge storage assemblies to the access point. On the exterior of the base unit is a weatherproof connector for connecting the solar panel to the base unit. Another weatherproof connector is provided on the exterior of the base unit for connecting an antenna, which sends and receives radio transmissions within a basic service area. Yet another weatherproof connector is provided to enable the base unit to be connected to an existing wired network, if desired.

Abstract: A link method for establishing a link between two bluetooth devices is provided to enable a device to transfer data to/from other device located in a bluetooth scatternet. The link method executes a link initialization procedure when resetting or initializing a link to determine whether the role of the bluetooth device at a dedicated link is a slave or master. Then, in the link search establishment procedure, it searches all possible paths for transferring data packet and establishes a link path table. Finally, when the link detection timer expires after a pre-determined period, the link detection procedure is resumed to detect whether the link is existed. If the link is not existed, the link initialization procedure is executed; otherwise, it further determines whether to execute the link initialization procedure again. If yes, the link initialization procedure is executed, otherwise the link detection procedure is executed.

Abstract: A wireless device (e.g. an access point) is adapted to communicate wirelessly with a class 1 device and a class 2 device, wherein the class 2 device is capable of communicating in a manner that is not compatible with the class 1 device. The wireless device may comprise host logic, an antenna, and a MAC coupled the host logic and the antenna. The MAC may cause the wireless device to emit a poll that is recognized differently by the class 1 device as compared to the class 2 device and that causes the wireless device to operate for a reserved period of time in which the class 2 device can communicate in a manner that is not compatible with the class 1 device.

Abstract: A method for data exchange with a mobile asset wherein the communication link quality at the location of the mobile asset is measured at the time of the data transfer. The packet size for the data transfer is selected in response to the communication link quality. The current communication link quality measurement may be used alone or in combination with historical communication link quality data for selecting the data packet size. Communication link quality may be determined repeatedly and the packet size reset accordingly in response to changes in the link quality. A difference between the current communication link quality and historical link quality data may trigger appropriate corrective action, such as identifying the source of intentional or unintentional jamming.

Abstract: A method is disclosed for determining by a UTRAN a persistence value having a value between 0 and 1 for adjusting a number of access preambles from a plurality of UEs requiring assignment of a common packet channel (CPCH). The method includes the steps of counting a number of the access preambles detected in an access preamble period having a predetermined period; and determining the persistence value based on the number of counted access preambles. The persistence value is determined in a unit of transport format (TF), physical common packet channel (PCPCH), or CPCH set.

Abstract: A wireless information processing system has a wireless information processing apparatus and a wireless information recording medium. The apparatus has a first signal generator generating a first signal requesting the recording medium to set a command slot, a second signal generator generating a second signal requesting the recording medium to transmit a identification information, a third signal generator generating a third signal requesting the recording medium to set a time slot, and a receiver receiving a response signal from the recording medium. The recording medium has a receiver receiving the first to third signals, a command slot setup unit setting the command slot, an accumulation unit accumulating a number of receiving times of the second signal, a transmitter transmitting the response signal at a response time interval defined by the time slot, and a time slot setup unit setting the time slot.

Abstract: A method for handling timers in a wireless communication system includes starting a Timer_Poll_Periodic timer for a Radio Link Control Acknowledged Mode (RLC AM) entity, performing a reset procedure for the RLC AM entity, and restarting the Timer_Poll_Periodic timerin response to the Timer_Poll_Periodic timer expiring prior to completion of the reset procedure. The claimed invention also specifies appropriate handling of eight other timers after an RLC reset or re-establishment in order to prevent the RLC AM entity from experiencing deadlock or reduction in quality of service.

Abstract: A data stream is transmitted between a base station and user terminal. A first resource that is available to transmit a page is selected at the base station and the page transmitted from the base station via the first resource. The page is received at the user terminal via the first resource and a second resource that is available to transmit a page response is selected at the user terminal. A page response is transmitted from the user terminal via the second resource in response to the page. A data stream is then transmitted between the base station and user terminal via a third resource. In one embodiment, the first, second and third resources utilize the same sequence of radio frequency resources that follow a hopping sequence among a set of available radio frequency resources. In one embodiment, at least two of the first, second and third resources utilize the same sequence of radio frequency resources. In yet another embodiment, the resources utilize different sequences of radio frequency resources.

Abstract: A wireless network is disclosed in which individual wireless stations can be configured to implement any of a plurality of physical configurations including antenna configurations. Such antenna configurations may include, without limitation, multiple input multiple output (MIMO) and single input single output (SISO). Different types of MIMO configurations can also be implemented such as open loop MIMO and closed loop MIMO.

Abstract: An access point (11) for a wireless local area network (10) transmits a beacon message during a service interval period (21). This beacon message identifies, in a preferred embodiment, those subscriber units to whom the access point will shortly be transmitting data. Subscriber units that are not identified in the beacon message and that do not have data themselves to transmit to the access point can implement a power conservation mode of operation until the next beacon message. Subscriber units that have data, such as voice information, to transmit can utilize the beacon message contents to at least estimate a likely time by when the access point will have concluded making its transmissions to the subscriber units. That estimated time can then be used to facilitate scheduling a time at which a given subscriber unit will contend for an opportunity to transmit its data to the access point.

Abstract: A method and apparatus for redirecting network traffic through a multipoint tunnel overlay network using distinct network address spaces for the overlay and transport networks. In an IP implementation, redirecting traffic to be tunneled across a network comprises deriving the transport IP address of a multipoint tunnel endpoint from the network IP address by making the transport address numerically equivalent to the network address, the transport address being in an address space distinct from the address space of the network address. Traffic is redirected by changing the address space of the next hop in a received routing advertisement.

Abstract: A communications network which is capable of effectively and efficiently handling fading between mobile wireless user terminals of a packet-switched network with minimal overhead and packet loss, and a method for using the same. The communications network employs an origination mobile terminal and surrounding macroscopic mobile terminals and/or surrounding fixed infrastructure. Communication is established between the origination mobile terminal and surrounding macroscopic mobile terminals and/or surrounding fixed infrastructure. The communication is established via modified request to send (RTS) and clear to send (CTS) messages, wherein the modified messages provide for an additional two sets of k unicast addresses where k equals the maximum number of routes available per route entry in the origination mobile terminal's route table.

Abstract: A wireless communication system base station includes a number of channel unit boards, each including multiple channel elements for providing processing operations for signals assigned to multiple carriers of the system. A given channel unit board includes a multiplexer which is operative to implement multi-carrier/multi-sector channel pooling by assigning a given one of the channel elements of that board to any one of the multiple carriers of the system. For example, the multiplexer in the given channel board may be operative to connect the channel elements of that board to I/Q signal buses associated with different system carriers. The I/Q signal bus for each of the carriers is then combined on the given board with corresponding signals from other boards. The invention allows each of N channel elements of the given channel unit board to be assigned to a particular one of up to N carriers of the system, thereby providing substantially improved flexibility in terms of system configuration.

Abstract: A system and method for increasing bandwidth usage between an access point and a wireless device are described. One embodiment can include an access point, a prioritizer, and a priority storage device. These components can increase bandwidth usage between an access point and a wireless device by allocating previously unused transmission slots.

Abstract: An apparatus and method for polling stations that transmit periodic traffic streams are disclosed. A station transmits a polling request that specifies the temporal period of the station's traffic stream, and a coordinator, after receiving the polling request, repeatedly sends polls to the station in a rapid-fire manner until a response from the station is received. The coordinator estimates the temporal offset for the temporal period based on one or both of (i) the time at which the coordinator received the response, and (ii) the time at which the coordinator transmitted the particular poll to which the station responded. Based on the temporal period and temporal offset, the coordinator establishes a polling schedule that polls the station soon after the station generates a frame. The coordinator also monitors downlink traffic to polled stations and, when the downlink traffic is periodic, establishes a downlink transmission schedule accordingly.

Abstract: A device for presenting information on a mobile includes mobiles and terminals interconnected intercommunicably through communication means, wherein a terminal transmits, to the mobile concerned, mobile identification data on a mobile to which a request for mobile information is to be made, request content identification data representing the contents of mobile information to be requested, and terminal identification data on the terminal being the presentee to which the requested contents is to be presented. The mobile acquires mobile information requested by the terminal and sends it to the terminal being the presentee. The stored contents in storage means is updated each time operation of input for requesting information from a mobile is made through the terminal and the mobile acquires new mobile information. The updated stored contents is transmitted to the terminal being the requester when the terminal requests the updated stored contents.

Abstract: A home network system for controlling one or more home appliances connected to a network and a method for operating the same. If an alive message or a connection termination message is normally generated from the home appliance, or if the alive message or the connection termination message is not normally transmitted to a network manager due to a transmission failure in a communication path, the network manager automatically recognizes a network connection state of the home appliance using a network search process, performs a connection termination operation according to the recognized information, and updates network information, resulting in increased reliability and user's convenience of the home network system.

Abstract: A manager node (105) controls access to a shared network communication medium by a number of nodes. A first node (101) transmits a request to the manager node (105). The request includes information indicating that the first node (101) requires a QoS link to a second node. The manager node (105) determines whether the QoS link from the first node (101) to the second node can be supported and sends an accept message to the first node (101) when the QoS link can be supported. Prioritized media access control may also be used in a distributed network without using a manager node to control access to a shared communication medium. A node with high priority data may reduce the duration of its contention window so that it will have a better chance of gaining control of the shared communication medium than a node with low priority data.

Abstract: A system and method for reducing the unused capacity of a wireless communication channel utilize the data fields of an special burst (SB) in order to signal physical layer control signaling for coordination between a Node B and a user equipment (UE). The control signaling may include improved reception of SBs, enclose transmit power control commands or any physical layer control signaling for coordination between the UE and the Node B for synchronization timing advance or reconfiguration of the physical channel. This system and method may be applied independently to the uplink and the downlink.

Abstract: A communication protocol for use in a mobile cellular communication system using time division duplex establishes a communication channel between a user station (e.g., a handset) and a base station in a time slot by assigning a first time segment within the time slot for a user station transmission and assigning a second time segment within the time slot for a base station transmission. The protocol also provides for virtual time slots wherein a time segment assigned for periodic transmission from the base station to a given user station may be non-contiguous with respect to the time segment assigned for periodic transmissions from the user station to the base station.

Abstract: A node (105-1) determines a power level for transmitting to a neighboring node (105-2) in a wireless network (100). The node (105-1) receives one or more messages indicating a location of the neighboring node and a type of directional antenna of the neighboring node (105-2) that transmitted the one or more messages. The node (105-1) determines the power level for transmitting to the neighboring node (105-2) based on the location of the neighboring node (105-2) and the type of the directional antenna.

Abstract: An integrated circuit for a smart card may include a transceiver for communicating with a host device and a Joint Test Action Group (JTAG) test controller for performing at least one test operation. Further, the integrated circuit may also include a processor for causing the JTAG test controller to initiate the at least one test operation based upon receiving at least one test request from the host device via the transceiver. More particularly, the processor may convert the at least one test request to JTAG data for the JTAG test controller. That is, the integrated circuit advantageously allows communications between the host device and the JTAG controller via a system bus, for example, without the need for a dedicated JTAG test access port (TAP) which is typically required for accessing JTAG controllers.

Abstract: A method and a system is disclosed for providing quality of service (QoS)-driven channel access within a basic service set (BSS) in a wireless network. A contention control (CC) frame is sent from a point coordinator (PC) station of the BSS. The CC frame contains information relating to a number of available centralized contention opportunities (CCOs) for receiving a reservation request (RR) in a centralized contention interval (CCI) following the CC frame. The CC frame also contains information relating to the identification of stations from which an RR was successfully received by the PC station in a preceding CCI. The CC frame is sent by the PC station during a contention-free period (CFP) of a superframe. The superframe includes a contention-free period (CFP) and a contention period (CP). The CC frame is received at a non-PC station in the BSS. An RR is then sent in a selected one of the available CCOs in the CCI in response to the received CC frame.

Abstract: A technique restores adjacencies between a non-stop forwarding (NSF) router and its neighboring routers during reload of routing protocol software on the NSF router within a computer network. When a new instance of the routing protocol software is re-loaded, each interface of the NSF router is placed in a special state that enables it to receive incoming Hello packets from its neighboring routers. When placed in the special state, the interface passively “listens” for incoming Hello packets from the neighbors to determine which neighbors send the packets. The router thereafter promptly creates and sends a unicast Hello packet to each neighbor from whom it has received an incoming Hello packet and creates associated neighbor data structures.

Abstract: Devices, softwares and methods for centralized session planning while in a DCF mode. An access point plans centrally a schedule of individual sessions with each station. Then it announces to each peripheral station the onset of the session by a polling pulse that includes the return address of a MAC layer of the station. The addressed peripheral device then transmits data from its MAC layer.

Abstract: A method and a system are disclosed for providing quality of service (QoS)-driven channel access within a basic service set (BSS) in a wireless network. A point coordinator (PC) station determines whether at least one of upstream traffic and side-stream traffic is scheduled to be transmitted from at least one non-PC station At least one available TO is allocated to each selected non-PC having at least one traffic to transmit. A multipoll frame containing information relating to at least two allocated TOs is then sent from the PC station containing information relating to each allocated TO.

Abstract: A transmitter is capable of transmitting layer 2 protocol data units (PDUs). Each PDU has an n-bit sequence number. A base sequence number BT(A) is obtained that marks a beginning sequence number of a transmitting window of the transmitter. A current sequence number VT(S) is obtained that marks a sequence number of a PDU that is next to be transmitted by the transmitter. 2n is added to a difference of the current sequence number VT(S) and the base sequence number VT(A) to yield a first value. A second value is obtained that is a modulus of the first value with 2n. A test value is then obtained that is the second value divided by a size of the transmitting window. Polling is triggered when the test value is greater than or equal to a polling value. The polling value represents a percentage of the transmitting window that has been transmitted.