Ntt Docomo, Inc.

Hiromitsu Sumino

Hideharu Suzuki

Norihiro Ishikawa

Hidetoshi Ueno

Takeshi Kato

Toshiyasu Yabe

Taku Onishi

Ai Nagai

Haoyi Wan

Eiji Omata

A gateway server, in the case that discontinuation of TCP Connection A between a portable phoneand gateway serveris detected when gateway serveris relaying HTTP communication between portable phoneand a content server, maintains TCP Connection Bbetween a billing management serverand gateway serveruntil gateway serverreceives from billing management serverbilling information for HTTP communication relayed up to the time of the discontinuation of TCP Connection A.

Communication control method in connection-oriented communication, related transfer device, and billing management device

A Gatewayreceives mobile station data corresponding to a mobile stationfrom a switching center in a mobile packet communication network. The mobile station data may be communicated with a communication protocol such as Network Management Protocol (NWMP). Mobile stationtransmits and receives user data, such as Hypertext Transfer Protocol (HTTP) data, in a protocol, such as HTTP, via gateway. In transmitting user data from mobile stationto a server, gatewaymay add the mobile station data corresponding to mobile stationto the data. Mobile stationcannot falsify the mobile station data because the added mobile station data corresponds to identification data used in establishing a wireless connection between mobile stationand mobile packet communication network. As a result, servermay trust mobile station data added by gatewayto the user data transmitted from mobile station

Communication system for adding data transmission origin information to data

A node includes a manager configured to manage the hash value of the node and the hash values of adjacent nodes, and a calculator configured to calculate an insertion position of a new entry node in a ring network, based on the hash value of the new entry node, the hash value of the node and the hash values of the adjacent nodes.

Network topology configuring method and node

A document conversion method for converting a first structured document F, formed based on a first document type definition D, to a second structured document F, formed based on a second document type definition D, the document conversion method including analyzing the document type definition Dand document type definition Dand extracting a difference document type definition, generating a conversion template Tdescribed therein a conversion rule which prevents the structured document F, which is the result of document conversion process, from being contradictory to the document type definition D, based on the results of the analysis, and performing document conversion process using the conversion template T

Method and system for converting structured documents

It is an object of the invention to measure a communication data volume for each service type in measuring a communication data volume in a charging process and the like. The invention comprises a plurality of measuring pointstofor measuring a communication data volume and a data relaying apparatusfor transmitting received data to any of the plurality of measuring pointsto. The data relaying apparatushas a service-type judging meansfor judging the service type of the received data, a measuring point determining meansfor determining the measuring pointstoto which the data is to be transmitted based on the service type and a data transmission meansfor transmitting the data to the measuring point thus determined, and each of the plurality of measuring pointstohas a communication data measuring means for measuring the communication data volume of the data received from the data relaying apparatus

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Yokosuka, Japan

Hiromitsu Sumino