公开(公告)号：EP1919214A4

公开(公告)日：2008-11-12

申请号：EP06775241

申请日：2006-07-28

Applicant: HUAWEI TECH CO LTD

Inventor： CHANG YUE ,  LI JUN ,  QU ZHIJUN ,  WU HAIJUN

IPC: H04L12/28 ,  H04N7/173

CPC classification number: H04L12/2874 ,  H04L65/4076 ,  H04L65/80 ,  H04N7/17318 ,  H04N21/21815 ,  H04N21/26616 ,  H04N21/47202 ,  H04N21/6375 ,  H04N21/6405 ,  H04N21/6408

Abstract: A broadband access means with a built-in video service unit. Said built-in video service unit transmits the stored video service to the user terminal through the broadband access means it belongs according to the request of user terminal. Said video service unit comprises a unicast storage module; a unicast forward module, for transmitting the video service stored in the unicast storage module to the user terminal according to the unicast request of the user; a unicast retransmission module, for responding the retransmission request of the user terminal and retransmitting the lost unicast video message to the user terminal; a multicast storage means, for caching the multicast video stream in real time; and a multicast retransmission module, for responding the retransmission request of the user terminal and retransmitting the lost unicast video message to the user terminal via unicast traffic.

公开(公告)号：EP1919139A4

公开(公告)日：2008-11-26

申请号：EP06775448

申请日：2006-08-22

Applicant: HUAWEI TECH CO LTD

Inventor： QU ZHIJUN

IPC: H04L12/56

CPC classification number: H04J3/0673 ,  H04J3/0697

Abstract: A system and method for realizing network synchronization by packet network mainly includes: restoring the clock signal from the superior processing equipment data link of the packet network, and sending it to the subordinate processing equipment; realizing the synchronization of said processing equipment based on said clock signal. It can realize the uniform timing of the whole network and change the IP network without the timing into the synchronous network, which is similarly with the circuit network, with high bandwidth. It can not only provide a circuit simulation service, but also a multi-service with high bandwidth.

公开(公告)号：EP2091187A4

公开(公告)日：2009-12-02

申请号：EP08849167

申请日：2008-11-14

Applicant: HUAWEI TECH CO LTD

Inventor： QU ZHIJUN

IPC: H04L12/56 ,  H04Q11/00

CPC classification number: H04Q11/0067 ,  H04L12/185 ,  H04L12/2861 ,  H04L12/287 ,  H04L12/2874 ,  H04Q2011/0064 ,  H04Q2011/0073

公开(公告)号：EP2093959A4

公开(公告)日：2010-04-28

申请号：EP07817240

申请日：2007-11-12

Applicant: HUAWEI TECH CO LTD

Inventor： QU ZHIJUN

IPC: H04L29/04 ,  H04L29/10

CPC classification number: H04L12/2883 ,  H04L69/24

公开(公告)号：EP1919127A4

公开(公告)日：2008-11-05

申请号：EP06775240

申请日：2006-07-28

Applicant: HUAWEI TECH CO LTD

Inventor： ZHANG SHIFA ,  QU ZHIJUN ,  CHEN WUMAO ,  LI QIAO

IPC: H04L12/24

CPC classification number: H04L49/354

Abstract: A data packet transmission method and a LAN switch device, the method includs: the LAN switch device learns the member port which corresponds to the VLAN according to the data packet received by the LAN switch, and stores the learned corresponding relationship between each VLAN and its member port, transfers the data packet according to the stored corresponding relationship between each VLAN and its member port. The memory space of the MAC address table of the LAN switch device of the present invention only need to meet the MAC address of the local user, it reduces the MAC address table storing space of the LAN switch device demanded by the converge network; the corresponding relationship between the VLAN and its member port stored in the LAN switch device of the present invention only relates to the number of the VLAN, and has no relation to the number of the user accessing the network, it can access more users to the converge network, which is advantageous to expand the network; therefore, it reduces the organization price of the converge network.