Alcatel Lucent

Shan Jin

Gang Shen

Wei Ni

Wei Zou

Bin Zhao

Xiaobing Leng

Jimin Liu

Dongyao Wang

Erwu Liu

Yujian Wang

Yongming Gai

Kaibin Zhang

Jikang Wang

Luoning Gui

Zhaohui Jiang

Qingqing Lun

Weihua Huang

Zhiji Zhang

An objective of the present invention is to provide a method and apparatus for video transmission, wherein the video is initially stored in one or more other network devices. The method comprises receiving a second request for a video from a user equipment; forwarding the second request to other network device corresponding to the second request; determining a manner of obtaining the video based on a response, received from the other network device, to the second request; and transmitting the video obtained based on the manner of obtaining the video to the user equipment. Compared with the prior art, by uniformly determining a manner of obtaining a video and transmitting the obtained video to the user equipment the present invention, the present invent on lowers deployment difficulty, reduces bandwidth resource demands, and enhances the video sharing degree.

Method and apparatus for video transmission

In one embodiment, the method includes obtaining device-related information corresponding to a plurality of devices from the device manager, selecting, for each first device, a second device matching each first device from among the at least one second device based on device-related information of the each device; determining corresponding device matching information based on the second devices matching the each first device, and sending the device matching information to the at least one second controller; wherein the device matching information includes one or more pairs of matching first device and second device.

Method, apparatus and system for matching devices

A solution of reconstructing the network topology according to the traffic related information of each cell is proposed in the present invention, so as to achieve self-optimization of network. The traffic related information of a cell includes the traffic related information applicable to network topology reconstruction, or load related information as is named, including but not limited to time-frequency resource related amount that is used by the traffic data in the cell, traffic throughout of each cell or the wireless channel quality of each cell for transmitting traffic data, etc. The solutions in the present invention realize the network topology reconstruction according to traffic related information of multiple cells, therefore the network capacity and service quality could be effectively improved and the wireless relay communication network is applicable to those areas with unpredictable traffic distribution. And the network topology reconstruction function in the present invention can simplify network planning and network management, so that network deployment cost and maintenance and management expenses could be saved.

Method and apparatus for reconstructing the network topology in wireless relay communication network

The invention provides a method and device for cooperative relay with multiple relay stations in the wireless telecommunication network. To be specific, according to the invention, in single-hop or multi-hop relay telecommunication link, the relay device and other relay devices within the same hop select space diversity or space multiplexing to carry out cooperative relay operation according to the processing indicating information from the base station, thus obtaining space diversity gain and space multiplexing gain.

Method and device for cooperative relay with multiple relay stations in wireless telecommunication network

The present invention provides a handover control method in a wireless access system, a relay station and a base station for performing handover control in a mobile multi-hop relay wireless access system such that the wireless access system is enabled to cover a wider area. To achieve the above object, the present invention provides a handover control method in a wireless access system, wherein the wireless access system comprises a mobile station and a base station, which receive and send message via a wireless channel, and further comprises a relay station for forwarding message from the mobile station and the base station under control of the base station, characterized in that the method comprising a relay station measure and arbitration step in which the relay station measures the message and arbitrates whether to relay the message, and a base station measure and handover step in which the base station measures the message and arbitrates whether to perform handover.

Handover control method in a wireless access system, relay station and base station

Disclosed are a method for identifying a connection, mobile station and base station. The method comprises the steps of: assigning a MS ID to the mobile station when the mobile station enters into the coverage area of the base station; and assigning a connection ID to a connection when the connection is established between the base station and the mobile station. With the proposed solution, the data overhead could be reduced due to short Connection ID instead of 16-bit CID in 802.16e, especially for VoIP traffic. In addition, due to adjustable bit-length of Connection ID, the tuple &#x3c;MS ID, Connection ID&#x3e; could flexibly support different numbers of connections while keeping overhead in minimal.

Method for identifying connection, mobile station and base station

A method and a device for data relay transmission in a wireless relay communication network are provided, in which, the relay station directly obtains corresponding egress CID related information based on input MAC PDUs, then generates output MAC PDUs including the egress CID related information, and at last, according to the egress CID related information, performs QoS scheduling for the output MAC PDUs, so as to output them in an sequence of QoS. The invention omits the steps of de-cascading, de-segmenting or de-capsulating the MAC PDUs in order to obtain MAC SDUs, and the steps of scheduling by category, cascading, segmenting, and encapsulating the MAC SDUs in order to re-generate the MAC PDUs in the prior art, and the invention simplifies the data processing procedure and achieves the goal of decreasing the relay latency.

Method and device for data relay transmission in wireless relay network

A method for extending a coverage of a base station in a wireless communication network is disclosed, characterized in that a relay station transfers control information and communication related information between the base station and the mobile station according to an indication of the base station.

Relay station, base station and method for extending a coverage area of a base station in a radio network

The present invention provides a wireless access control method, relay station and base station. The wireless access control method according to the present invention is characterized in that under the control of said base station, information of said subscriber station and said base station is received and forwarded via a wireless channel by using the relay station. Said method further comprises the steps of: uplink bearer data and control information from said subscriber station being first received by said relay station and then forwarded to said base station; downlink bearer data from said base station being first received by said relay station and then forwarded to said subscriber station. Said base station sends control information directly to the subscriber station. The present invention further comprises a relay station for implementing the above method and an improved base station. In the method and devices provided by the present invention, with the introduction of relaying access technique, subscriber stations located with the long distance to the base station or in shadowing areas may be connected by relaying.

Wireless access control method, relay station and base station

A self-adaptive jitter buffer adjustment method for packet-switched network is presented in this invention, which involves both positive adjustment to jitter buffer and negative adjustment to jitter buffer. The positive adjustment part performs a positive adjustment to the jitter buffer according to an indication of a sequence number of the packet delaying, to absorb larger network jitters by dynamically detecting sequence numbers of the packets in the jitter buffer. The negative adjustment part performs a negative adjustment to the jitter buffer when the filling level descends, to match smaller network jitters by periodically detecting a filling level of the jitter buffer. This invention realizes the dynamic tracking of network jitter, so that a self-adaptive adjustment to the jitter buffer working parameters can be achieved. Comparing with traditional methods for self-adaptive buffer adjustment, the present method reduces the complicacy and computational costs of the self-adaptive jitter buffer adjustment algorithm. At the same time, the impact of self-adaptive jitter buffer adjustment on the performance of the entire system is greatly reduced.

Self-adaptive jitter buffer adjustment method for packet-switched network

The present invention relates to a wireless self-backhaul technique in a wireless communication network, especially in a WiMAX network, which implements wireless backhaul between base stations by using radio resources (frequency, sub-band or timeslot) of base stations' own. More specifically, uplink and downlink backhaul channels are formed between a master base station and a slaver base station using base stations' inherent resources and through offsetting the frame start time of the slaver base station for a period of time in relation to the master base station. The slaver base station operates in base station mode during local user access and operates in subscriber station mode during implementing wireless backhaul traffic with the master base station. Therefore, the slaver base station needs to switch between these two operating modes.

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Shanghai, China

Shan Jin