Abstract: The modulation/demodulation unit modulates information to be transmitted, or demodulates information received. The time slot control unit allocates time slots to the terminal apparatus. The control signal processing unit extracts a signal indicating a disconnection request from a signal for requesting time slot allocation, received from the terminal apparatus in an inactive state in particular. The modulation mode control unit determines a modulation mode suitable for channel quality derived by the quality derivation unit. The modulation mode control unit determines to use a predetermined modulation mode when it receives an instruction for performing disconnection from the control signal processing unit.

Abstract: The registering work of a wireless LAN terminal and a wireless LAN access point has been troublesome especially to beginners. According to the wireless LAN communication system of this invention, the client terminal judges the necessity of registering the communication profiles, and if necessary, executes the register processing with the wireless LAN access point, which simplifies the registering work by the user. Here, the system requires the wireless LAN access point to switch the normal mode into the register request-accepting mode, which makes it possible to prevent the register processing from being executed with unintentional client terminals. Therefore, it is possible to provide a wireless LAN communication system that facilitates the registering work and achieves the security at a satisfactory level.

Abstract: An apparatus and method for controlling operation states of a medium access control layer by a mobile subscriber station (MSS) in a broadband wireless access communication system. The method includes: state-transitioning into a sleep state or an idle state when there is no data transmitted between a base station and the MSS during a predetermined first time interval in an awake state; and performing a location change in the idle state when the mobile subscriber station moves from a first paging zone to a second paging zone, and state-transiting into the awake state when the mobile subscriber station in the idle state detects a paging to the mobile subscriber station. The method minimizes power consumption and maximizes efficiency in use of radio resources.

Abstract: Method and apparatus to manage power for a communication device having multiple radios are described.

Abstract: Letter input rate of a conventional cell phone is low because only the thumb is used for inputting a letter. The inventive cell phone with one joystick, two shift keys and twenty six keys on the opposite side faces, is grasped by both hands and ten fingers are used. Any one of twenty six alphabetical letters can be inputted by a single push operation without switching the shift key and letters can be inputted at super-high rate by touch typing. The cell phone significantly enhances the convenience of letter input for users.

Abstract: A method of selectively providing MIMO transmission/reception in a WLAN system includes using a TSPEC reservation and signaling mechanism to instantiate and tear down, dynamically, multi-channel operation in a WLAN; providing an inference algorithm to determine the minimum number of channels required to establish a TSPEC using a MIMO WLAN system; providing specific channel parameters as parameters to be negotiated in the TSPEC; providing frame exchange sequences to be used in Enhanced Distributed Coordinated Access contention based access and to be used in polled access; and providing a mechanism wherein an access point makes a decision as to whether to admit MIMO functionality on a given link, wherein a “link” is a set of communications between two specific WLAN stations.

Abstract: Methods and systems for processing a packet are disclosed herein. Aspects of the method may comprise replicating at least one component of a legacy preamble synchronization symbol to generate a plurality of replicated components of a legacy preamble synchronization symbol. A portion of the generated plurality of replicated components of a legacy preamble synchronization symbol may be grouped and scaled to at least one wide-bandwidth synchronization symbol. A wide-bandwidth preamble may be generated utilizing the wide-bandwidth synchronization symbol. The replicated component of the legacy preamble synchronization symbol may comprise a time domain component and/or a frequency domain component. The time domain component may comprise at least one modulated symbol and the frequency domain component may comprise at least one tone.

Abstract: The object of the present invention is to provide a radio communication system which can reduce control information transmitted from mobile stations to a base station, reduce traffic of up link radio resources, and suppress the quantity of interference to the entire radio communication system. The present invention relates to the radio communication system in which the same information is transmitted from a base station 30a to a plurality of mobile stations 40a to 40c with a predetermined down link transmission power. The base station includes transmission power controller configured to control the predetermined down link transmission power based on control information transmitted by a part of the mobile stations 40a to 40c subordinated to the base station 30a.

Abstract: A method for performing reverse link power control by determining the state of a reverse link data rate control bit in a mobile station according to variable thresholds that are set according to the size of a data packet to be transmitted. By considering the size of the data packet to be transmitted when setting the thresholds used to determine the state of the rate control bit, the increased sensitivity at higher data packet sizes of system stability to an incorrect determination of the state of the rate control bit may be accommodated. Furthermore, when a mobile station is located within a soft handoff area, the number of base stations transmitting rate control bits to the mobile station is considered when setting the variable thresholds.

Abstract: The invention provides a dual band transmitter available for a mobile communication terminal such as mobile phone, in which a first RF amplifier 111 amplifies the power of a high band signal BS1 at a first amplification factor that is determined according to a first bias voltage. A second RF amplifier 121 amplifies the power of a low band signal BS2 at a second amplification factor determined according to a second bias voltage. A first coupling capacitor C11 couples an output signal from the first RF amplifier 111. A second coupling capacitor C21 couples an output signal from the second RF amplifier 121. A filtering coupler 140 has a high pass filter FT1 for a first coupled signal from the first coupling capacitor C11 and a low pass filter FT2 for a second coupled signal from the second coupling capacitor C21.

Abstract: In a method for communication between a first station (BS1) and a second station (MS1) the first station may provide the second station with information associated with the manner how the second station should transmit towards the first station. The second station (MS1) may then transmit e.g. a response to a message from the first station (BS1) based on said information. That is, the second station (MS1) may e.g. use a specific transmission parameter for the transmission instead of transmitting in a manner the second station would have transmitted had it not been provided with said information. A communication system and stations for the communication system embodying the method are also disclosed.

Abstract: A second communication device is detected in proximity to a first communication device engaged in a call. A substantially uninterrupted transfer of the call is provided from the first communication device to the second communication device. At least a part of the first communication device is placed into a sleep mode in response to transfer of the call to the second communication device.

Abstract: System(s) and method(s) to automatically locate and/or connect to external devices is provided. A mobile computing device contains a mobility device assistant that is able to communicate with external devices, such as peripheral equipment and other devices. The mobility device assistant automatically searches via a wireless media to locate and communicate with the external device. The external device responds with relevant information about the external device. The external device can also communicate with the mobility device assistant via a proxy communication device or manager. The proxy manager maintains a database of information about those external devices that are unable to communicate. The mobility device assistant is configurable to locate and/or filter for specific external devices. The mobility device assistant can request external device information based upon an inferred state of the user or mobile computing device.

Abstract: A method is provided for building an information network via an antenna terminal or an antenna cable disposed in a house for receiving television broadcasting or radio broadcasting. The method comprises step (a) of selecting at least one frequency not used by television broadcasting or radio broadcasting in an area where the house is located; step (b) of modulating a carrier wave having the frequency selected in step (a) by using transmission data transmitted from a first information terminal and transmitting the modulated carrier wave via the antenna terminal or the antenna cable; and step (c) of receiving the carrier wave transmitted in step (b) and demodulating the carrier wave to produce reception data received by a second information terminal.

Abstract: A communication device is provided which is capable of transmitting pickup images efficiently with high portability, manipulativity and instantaneous response. The communication device is disclosed in which according to one preferred embodiment, a control apparatus starts a communicating (such as radio transmission) operation in a communication apparatus simultaneous to an image pickup operation in an image pickup function when a predetermined operation is instructed by a manipulation of a manipulation apparatus from a user in a communication device having the image pickup function. Thereby, the pickup images obtained by the image pickup function are automatically transmitted to a specified transmission destination via a communicative apparatus. Thus, a user can transmit pickup images to a desired transmission destination simultaneously only by making a simple manipulation of changing the operating mode of the device to a predetermined mode or the like.

Abstract: Global Positioning System (GPS) and non GPS position finder, emergency, multiple input multiple output (MIMO), multimode, spread spectrum, code division multiple access (CDMA), Global Mobile System or Global System Mobile (GSM) and orthogonal frequency division multiplex (OFDM) communication systems. Position finder and emergency communication multiple input multiple output (MIMO) system and a receiver having multiple inputs for reception and demodulation of position finder signals to position finder baseband signals. A processor for processing position finder signals with a signal containing an emergency number. A processors for processing signals to provide cross-correlated shaped in-phase and quadrature-phase baseband signals, spread spectrum and OFDM baseband signals. A control unit for control and selection of one of the jointly processed signals and a selector for providing the selected signal to a modulator.

Abstract: A communication system includes logic to detect I/O activity of a first communication device, logic to ascertain whether a second communication device having an active call is in proximity to the first communication device, and logic to provide a substantially uninterrupted transfer of the call from the second communication device to the first communication device in response to detecting the I/O activity of the first communication device if the second communication device is in proximity to the first communication device and has an active call.

Abstract: An advanced communication terminal system of integrating mobile communications, wireless access systems and wireline communications into one open architecture platform supporting cost-effective broadband services in both wireless and wired communication environment with one integrated terminal device in order to maximize the wireless spectrum utilization and optimize the network resource management.

Abstract: A transmission and reception system utilizes primarily a combination of punctured-convolution-coding and diversity. Degradation in likelihood of certain data is prevented by adopting the steps of (a) punctured-convolution-coding series of identical information data by using a plurality of different puncturing patterns, (b) diversity-transmitting each of different series of punctured data obtained in step (a) as diversity branches, (c) depuncturing the series of punctured data individually in a receiving device by using identical puncturing patterns and as used in the transmission side, and (d) combining and convolution-decoding them thereafter.

Abstract: A method and system are disclosed for controlling radio communications between a terminal (MS, TE) and a communications system (CN, GRAN). A communications connection between the system and the terminal is established by an active radio network controller (RNC) and an active base station (BS). In one embodiment, data communications within the communications connection is directed to the active radio controller by a second radio network controller.