Patent application number | Description | Published |
20080233951 | Wireless communication system and monitoring apparatus selectable optimum wireless communication method - In a wireless communication system including a plurality of base station controllers different in wireless communication method, each of which accommodates a plurality of base stations, a home agent apparatus connected to the base station controllers, and a monitoring apparatus connected to each of the base stations and the base station controllers, the monitoring apparatus acquires communication quality information of each wireless terminal from each of the base stations, and selects a wireless base station having a wireless communication path suitable for the wireless terminal from among wireless base stations different in communication method to which the wireless terminal is connected. | 09-25-2008 |
20090046615 | Network system, network apparatus and transfer apparatus - In order to maintain the reliability of telecommunication by means of the multicast wireless communication when IP multicast is used in the IP broadcast service, the network system includes a transfer apparatus for transferring multicast packets and transfer request packets and a network apparatus for receiving transfer request packets and for transferring the multicast packets to be distributed. The transfer apparatus transmits transfer requests together with transfer request packets when it transmits multicast packets to the receiver requiring unicast communication, and the network apparatus receives multicast packets, sets the destination MAC address of the multicast packet as the unicast MAC address of the receiver in response to the conversion request from the transfer apparatus and transfers multicast packets. | 02-19-2009 |
20090059879 | Wireless communication system for communicating via wireless LAN - Provided is a wireless communication system, comprising: a base station providing communication by a plurality of communication methods; and a mobile node for communicating with the base station by the plurality of communication methods. The mobile node calculates a first distance between a wireless LAN access point and the mobile node; and judges whether the communication by the wireless LAN is possible by comparing the calculated first distance and a second distance that is a distance within which communication by a wireless LAN is available. | 03-05-2009 |
20090061893 | Communication system for selecting communication method - There is provided a communication system including a base station and a terminal which communicates with the base station through a plurality of communication methods. The base station is configured to predict a position of the terminal; select a communication method optimal for the terminal based on the predicted position; and notify the terminal of the selected communication method. The terminal is configured to measure the position of the terminal by prediction which is similar to the position prediction by the base station; and select the communication method notified from the base station in the case of which a difference between a result of the position prediction and a result of the measurement is smaller than a predetermined threshold. | 03-05-2009 |
20100157898 | COMMUNICATION SYSTEM AND GATEWAY APPARATUS - To control the communication quality on the terminal basis without making the base station more complicated, it is provided a communication system, comprising at least one computer and a gateway that is connected to the at least one computer through a first network. The gateway is connected to at least one terminal through a second network. The at least one terminal performs communications with the at least one computer via the gateway. The gateway estimates quality of the communications between the gateway and the at least one computer in the first network; and determines a priority for the communications between the gateway and the at least one terminal in the second network according to the estimated quality of the communications in the first network. | 06-24-2010 |
20100177714 | COMMUNICATION SYSTEM USING MULTI-RADIO MODE, MONITOR NODE APPARATUS, CONTROL NODE APPARATUS AND BASE STATION APPARATUS - A communication system which includes plural radio systems, and which connects to a terminal apparatus corresponding to the plural radio systems, comprising: access points for the each radio system; gateways; an authentication apparatus; and a home agent. The authentication apparatus being shared by the plural radio systems: assigns an IP address to the terminal apparatus in a radio system which is initially connected among the plural radio systems according to an IP address assignment request from the terminal; judges whether an IP address assignment request for a radio system to be subsequently connected is from the same terminal apparatus by using an unique identifier of the terminal; and assigns the IP address assigned in the initially connected radio system to the terminal apparatus in the radio system to be subsequently connected in a case where the assignment request is determined to be from the same terminal apparatus. | 07-15-2010 |
20110007651 | NETWORK SYSTEM AND MONITORING NODE - In order to improve throughput in a whole network system, there is provided a network system controlling a plurality of wireless systems, comprising: access points of the respective wireless systems; gateways for terminating the respective wireless systems; a certificate authority; a home agent; a monitoring node; a control node; and terminal device connects to the plurality of wireless systems, wherein the monitoring node connects to the access points in the respective wireless systems and obtains information about the terminal device, the control node changes the wireless systems to which the terminal device connects in accordance with instructions of the monitoring node; and the terminal device selects one of the plurality of the wireless systems to which the terminal device connects in accordance with the information about the terminal device obtained by the monitoring node. | 01-13-2011 |
20110122957 | ADAPTIVE MODULATION SCHEME AND DATA RATE CONTROL METHOD - A radio communication system includes a first radio station for dividing codewords into communication units and transmitting the divided codewords by modulating them in every communication unit, and a second radio station for coupling and decoding signals obtained by demodulating the communication units. The radio stations have common information of first bits, equal to maximum bits per symbol of the communication units, and an encoding type list. The first station modulates and transmits the communication units with a modulation type with second bits. The second radio station receives the communication units modulated by the first radio station, demodulates the communication units with a modulation type with third bits, combines and decodes the demodulated signals with encoding types in the encoding type list, and obtains a result of the decoding, as reception information, by an encoding type in which no error is detected in the result of decoding. | 05-26-2011 |
20110286344 | Wireless Communication System for Controlling Qualities of Experience, and Gateway - When a terminal switches systems, if many users have their terminals already connected to destination wireless communication system and the resource use rate of destination system is high, other users have to reduce resources to meet a QoS to be delivered to the user. When resource allocation is controlled based on QoS, the resources are controlled for meeting a requested QoS. Therefore, even if a larger magnitude of a resource than a necessary magnitude thereof is allocated based on radio environment, there is no way of reducing the resource. This situation deteriorates the performance of the systems. An access point or a gateway is provided with a facility that measures a quality of experience (QoE), which a user perceives for an application, for system switching. The QoE of the user concerned and a QoE of whole systems are calculated. If the QoEs are improved, the systems are switched. | 11-24-2011 |
20120100854 | Wireless Communication System, Wireless Communication Base Station Device, and Control Node - A used frequency, a used bandwidth, and others of a wireless zone in a base station are determined so as to be “a wired band between the base station and a gateway=a upper limit value of an operating bandwidth of a wireless zone of a femtocell” by cyclically collecting to recognize a band which is available for a wired line between the base station and the gateway, a power on/off state of the wired line, or others, and a peripheral base station is notified of the information of an unused wireless frequency, so that system switching in consideration of the state of the wired line is achieved, and at the same time, excessive radiowave transmission in the wireless line is prevented to reduce interference. | 04-26-2012 |
20140248921 | WIRELESS COMMUNICATION SYSTEM, TERMINAL DEVICE, AND BASE STATION DEVICE - It is provided a wireless communication system, which secondarily uses the same frequency as a primary system using, the wireless communication system comprising a mobile terminal and a base station. The mobile terminal detects a signal having the frequency; and requests, in a case where a broadcast signal transmitted from the base station is undetectable, the base station to increase a transmission power to a range that a signal does not reach a service area of the primary system, based on a location of a wireless transmitter of the primary system, a location of the base station of the wireless communication system, and a location of the mobile terminal of the wireless communication system. The base station increases the transmission power to the range that the signal does not reach the service area of the primary system in case of receiving the request to increase the transmission power. | 09-04-2014 |
20150249585 | DETECTION APPARATUS, DETECTION METHOD, AND DETECTION PROGRAM - It is provided a detection apparatus including: a first storage module configured to store logs about traffic between communication apparatus and, when a consumed storage capacity reaches a given level or higher, delete the stored logs starting from an oldest log; a calculation module configured to refer to specific logs about specific traffic that is related to a subject of communication quality monitoring from the logs stored in the first storage module, thereby calculating a group of time-series statistical values about communication quality of the monitoring subject; a detection module configured to compare the group of time-series statistical values with a threshold, thereby detecting communication quality deterioration of the monitoring subject; and a saving module configured to obtain, when communication quality deterioration of the monitoring subject is detected, the specific logs from the first storage module and store the specific logs in a second storage module. | 09-03-2015 |
Patent application number | Description | Published |
20110131642 | CLIENT-SERVER INPUT METHOD EDITOR ARCHITECTURE - In general, one innovative aspect of the subject matter described in this specification can be embodied in methods that include the actions of receiving an input method editor (IME) server request, the IME server request including one or more tokens and requesting that an IME server be instantiated, the IME server executing one or more IME functions based on a key event sent from an IME client, wherein the IME server is a stateful server that stores both requests and responses of a communication session between the IME server and the IME client, determining that the IME server can be instantiated in a restrictive environment based on the one or more tokens, and instantiating the IME server in the restrictive environment. Other embodiments of this aspect include corresponding systems, apparatus, and computer programs, configured to perform the actions of the methods, encoded on computer storage devices. | 06-02-2011 |
20150088985 | CLIENT-SERVER INPUT METHOD EDITOR ARCHITECTURE - In general, one innovative aspect of the subject matter described in this specification can be embodied in methods that include the actions of receiving a key event at an input method editor (IME) server transmitted to the IME server from an IME client that is in communication with the IME server, wherein the IME server is a stateful server that stores both requests and responses of a communication session between the IME server and the IME client, and the IME client is a stateless IME client that issues a request to the IME server based on the key event, identifying, by the IME server, one or more logographic characters based on the key event, generating, by the IME server, rendering information corresponding to the one or more logographic characters, and transmitting the rendering information from the IME server to the IME client to display the one or more logographic characters. | 03-26-2015 |