Jiajun

Jiajun Chen, Shenzhen CN

Patent application number	Description	Published
20100318634	METHOD AND SYSTEM FOR SENDING, RECEIVING AND TRANSMITTING AN OFFLINE IMAGE AND OFFLINE IMAGE SERVER - The embodiments of the present invention disclose a method and a system for sending, receiving and transmitting an offline image and an offline image server. Said method for transmitting an offline image comprises the following steps: in case the second instant messaging terminal can not directly receive an image file from the first instant messaging terminal, the offline image server receives the image file uploading request sent by the first instant messaging terminal; the offline image server returns the downloading index information of said image file to said first instant messaging terminal according to said image file uploading request, the first instant messaging terminal sends said downloading index information to the second instant messaging terminal, and the second instant messaging terminal acquires said image file according to said downloading index information. By applying the embodiments of the present invention, even in case the instant messaging terminal can not directly receive an image file, the image file may be transmitted thereto, so as to enhance the intercommunion among the users.	12-16-2010

Patent application number	Description	Published
20100082838	ISP-FRIENDLY RATE ALLOCATION FOR P2P APPLICATIONS - An ISP-friendly rate allocation system and method that reduces network traffic across ISP boundaries in a peer-to-peer (P2P) network, Embodiments of the system and method continuously solve a global optimization problem and dictate accordingly how much bandwidth is allocated on each connection. Embodiments of the system and method minimize load on a server in communication with the P2P network, minimize ISP-unfriendly traffic while keeping the minimum server load unaffected, and maximize peer prefetching. Two different techniques are used to compute rate allocation, including a utility function optimization technique and a minimum cost flow formulation technique. The utility function optimization technique constructs a utility function and optimizes that utility function. The minimum cost flow formulation technique generates a minimum cost flow formulation using a bipartite graph have a vertices set and an edges set. A distributed minimum cost flow formulation is solved using Lagrangian multipliers.	04-01-2010

Patent application number	Description	Published
20100315984	A Method, System and Base Station for Transmitting Broadcast Service Data in a Single Frequency Network - A method for transmitting broadcast service data in a single frequency network including a Radio Network Controller and one or more base stations each with a cell including one or more sectors, the method includes: transmitting, by the Radio Network Controller, broadcast service data and a first transmission time to the base station; and transmitting, by the base station, the broadcast service data to each of its sector after the first transmission time, where the broadcast service data is transmitted to adjacent sectors sharing a common station address at different transmission times. Also, the present invention discloses a system and base station for transmitting broadcast service data in a single frequency network. With this technical solution, the phenomenon of fast fading of received signals in the prior art which occurs at adjacent edge zones of adjacent sectors in the same cell of the single frequency network can be avoided, and thus improving performance of receiving the signals.	12-16-2010