Abstract: This invention provides a wireless network system including a logically or physically separated wired network, a wireless base station connected to the wired network, and a plurality of wireless mobile terminals which performs wireless communication with the wireless base station. The wireless base station used in this system includes a wired communication unit which is connected to a wired network, a wireless communication unit which performs wireless communication using one radio frequency, and a wired line/wireless channel bridging function. The wireless base station also includes a control unit which controls one wireless communication unit to send out packets storing pieces of information corresponding to a plurality of virtual wireless networks so as to form a plurality of virtual wireless networks.

Abstract: A controller in a wireless communication system for a mobile station simultaneously communicating with a plurality of base stations comprises a receiver receiving a plurality of signals, relating to a fist communication type, from a plurality of base stations, and receiving a signal, relating to a second communication type different from the first communication type, from a specific base station; and a transmitter, coupled to the receiver, transmitting a control signal generated on the basis of the signal relating to the second communication type received by the receiver from the specific base station, to the plurality of base stations and the specific base station.

Abstract: A system and method for providing timing information to a wireless device in a position determination system is disclosed. A wireless device includes a reference signal receiver, a signal processor, a wireless communications transceiver and a GPS receiver. The wireless device is adapted to receive a reference signal, extract a snippet of the received reference signal, determine a time of reception for the snippet and transmit the snippet and time of reception to a position determination entity as part of a request for GPS aiding information. The position determination entity includes a timing source, a GPS memory for storing GPS satellite information, a reference signal memory, a communications interface, a signal processor and a control processor. The position determination entity is adapted to continually receive and store a reference signal along with an associated time of reception, and receive the snippet and timestamp transmitted from the wireless device.

Abstract: A synchroniser for use in a receiver which receives signals, wherein the synchronizer provides a digital control signal, the control signal defining a plurality of different levels; controls the level provided by successive ones of the control signals, successive ones of the control signal defining different values; and estimates the difference between the levels of successive ones of the control signals.

Abstract: A method and an apparatus for radiolocation using time differences of arrival. The method includes receiving transmit timestamps from a set of wireless stations of a wireless network. Each station transmits at least once. The transmit timestamp uses a local timestamping clock to indicate when a station transmitted a packet. The method further includes receiving sets of timestamped captured samples from each station that receives one of the transmitted packets. The times of arrival of each packet at each station are determined from the received sets of timestamped captured samples, and, the relative positions of the stations are determined from the determined times of arrival and the received transmit timestamps. The transmitting by the stations is in a round robin manner one station after the other, and several round robins may be used to mutually calibrate local clocks. Also an apparatus for inclusion in a station of a wireless network.

Abstract: A multi-home agent control apparatus and method are provided. The multi-home agent control apparatus includes a packet observing unit, which observes a packet input to or output from a home link; a home agent list storage unit, which creates a home agent list using home address information included in a binding update (BU) message and stores the home agent list if the packet observing unit receives the BU message and a binding acknowledgement (BACK) message; and a preference value calculation unit, which calculates a preference value of each of the home agents using the home agent list.

Abstract: A mobile terminal includes a speaker arrangement for providing surround sound. The terminal includes a folder hinged at a main body and having an LCD attached thereto, speakers mounted at the folder and implementing a three-dimensional surround-sound effect, and a sliding unit for sliding at least one of the speakers when the speakers produce the three-dimensional surround-sound effect. Because the distance between the speakers can be widened according to a user's selection, three-dimensional surround-sound can be maximized and thus product quality can be significantly enhanced.

Abstract: A portable communication equipment comprises a radio communication sections (13), (14) for transmitting and receiving a CDMA signal, a base band modem section (16) for modulating a speech signal into a CDMA signal and demodulating a CDMA signal into a speech signal, and a CPU (17) for controlling the transmission and reception of a CDMA signal. When the equipment fails in capturing a selected channel and falls in a condition when a system was lost, the CPU (17) retries to capture the selected channel. The CPU (17), when it fails in capturing the selected channel, selects another channel only when it tries to capture the selected channel for a predetermined number of times as well as it does not obtain an overhead message. With this arrangement, it is possible to capture an appropriate channel if an unsuitable channel is selected and the portable communication equipment falls into a condition when a system was lost.

Abstract: A system and method of charging for user traffic without including signaling costs in a wireless communication system is provided. In a system and method of charging a user equipment (UE) in a gateway node in a mobile communication system having a serving support node within a radio network connected to the UE and the gateway node for connecting the radio network to a home server in an external network, the gateway node acquires from the external network the address of a home server that provides a service requested by the UE, stores the home server address, clears charging information collected with respect to signaling generated prior to the allocation of the home server address, and re-collects charging information about the service that the UE receives.

Abstract: A method for routing communications at a mobile station includes determining, at a mobile station, one or more routing metrics that are associated with each of a number of communication paths that couple the mobile station and a destination device. At least one of the routing metrics includes the link quality of at least one wireless communication link included in each of the communication paths. The method also includes receiving, at the mobile station, routing information from one or more routers that couple the mobile station and the destination device. The method further includes routing a communication to the destination device based on the determined routing metrics and the received routing information.

Abstract: A method is disclosed that is capable of appropriately assigning radio resource even when a propagation quality changes. After receiving the required communication rate from the mobile station, the base station measures the maximum used radio resource, and multiplies the maximum used radio resource by a factor ?. Next, the base station subtracts the above result from the total radio resource and obtains the maximum assignable radio resource. Then, the base station calculates an admissible communication rate based on the maximum assignable radio resources. Then, if the required communication rate is less than or equal to the admissible communication rate, the base station admits the request.

Abstract: Apparatus for coupling communication signal modulated radio frequency signals between an electrical power distribution line and the electrical power wiring at a customer's premises which includes a first transceiver for transmitting and receiving electromagnetic energy is inductively coupled to the distribution line and a second transceiver for receiving electromagnetic energy from, and transmitting electromagnetic energy to, the first transceiver. The second transceiver is coupled to the customer's power wiring to receive communication signals from, and to supply communication signals to, the customer's power wiring. The electrical power for the first transceiver can be supplied by inductive coupling to the power line and/or a battery, the battery being a back-up source when both inductive coupling and a battery are present.

Abstract: Noise impulses are suppressed in a signal processing circuit by gating an input signal. The gated signal is then smoothed upstream of demodulating the smoothed signal as viewed in a signal flow direction from a signal input to a processed signal output. The signal processing circuit system includes at least a signal gating section followed by a signal smoothing section followed by a demodulating section in that order and as viewed in the signal flow direction. Thus, smoothing takes place prior to demodulation.

Abstract: In a wireless local area network (WLAN), the present invention provides a system and method for identifying traffic suffering from bad link quality and dynamically adjusting channel access to restrict the effect of this bad link quality. The dynamic adjustment to channel access is accomplished by lowering or raising the limit on the number of packets that can be transmitted between an AP and the wireless station over the a link as determined by the link quality. The link quality is determined by tracking the number of successive packet transmission successes and errors.

Abstract: A mobile station includes a first wireless interface that can couple to a first wireless network, a second wireless interface that can couple to a second wireless network, and a controller. The controller can negotiate a first wireless link with the first wireless network using the first wireless interface and establish a communication session with a remote device using the first wireless link. The controller can also detect a session handoff trigger, negotiate a second wireless link with the second wireless network using the second wireless interface in response to the session handoff trigger, and invoke a private branch exchange feature to transfer the communication session from the first wireless link to the second wireless link.

Abstract: Apparatus, and an associated method, for a fixed wireless access communication system, by which to initiate a call to an emergency dispatch center, or other priority call to a priority location. When communication resources are initially unavailable to permit establishment of the call, normal call set-up procedures are emulated at a subscriber station from which the call is to be originated. Communication resources are reallocated in the communication system to permit the establishment of the call and the call is thereafter established.

Abstract: A user identification module (UIM) 12 having a plurality of storage areas that may be built into or mounted in a mobile terminal 11. A contents server 19, upon receipt of a distribution request from the mobile terminal 11, may distribute a program or data used at the time of program execution through a network including a radio network. The program may be encrypted twice by the contents server 19. During distribution, the program may be decrypted a first time by a distribution management server 16. The program may be decrypted a second time by the UIM 12. The decrypted program and the data may be stored in one of a plurality of separate and independently operated memory blocks of the UIM 12 and not through the control unit of the mobile terminal 11. The program may be enabled for execution by the UIM 12 at the direction of the distribution management server 16.

Abstract: A portable electronic information device with superb portability and/or amusement value is provided. This device A is a portable electronic information device A having an external housing 1 that can be equipped in a car, and the device A is provided with expression means 7, 8 and 9 for performing actions that can be sensed by the user of the vehicle, in accordance with vehicle status information of the vehicle or output signals from sensors 4 or 5 equipped inside external housing 1, and thus delivers superb amusement value. This device also functions as a vehicle key, providing high portability, and enabling information to be shared with a home computer, thus providing a high level of convenience.

Abstract: A system, method, and program for optimizing a wireless network having at least data communication between computer devices selectively connected thereto, and at least one of the computer devices is a remotely located wireless device. The wireless device has a resident network optimization application that causes the selective transmission of network status data to at least one other computer device on the wireless network, and either the data-receiving computer device or another computer device on the wireless network optimizes the wireless network based upon the received network status data.

Abstract: According to an embodiment of the invention, the location of a mobile device and a direction in which the mobile device is moving are determined. Communications service changes for the mobile device are anticipated based at least in part on the location of the mobile device and direction in which the mobile device is moving.