Showing papers by "Huawei published in 2006"

Face recognition using recursive Fisher linear discriminant

Abstract: Fisher linear discriminant (FLD) has recently emerged as a more efficient approach for extracting features for many pattern classification problems as compared to traditional principal component analysis. However, the constraint on the total number of features available from FLD has seriously limited its application to a large class of problems. In order to overcome this disadvantage, a recursive procedure of calculating the discriminant features is suggested in this paper. The new algorithm incorporates the same fundamental idea behind FLD of seeking the projection that best separates the data corresponding to different classes, while in contrast to FLD the number of features that may be derived is independent of the number of the classes to be recognized. Extensive experiments of comparing the new algorithm with the traditional approaches have been carried out on face recognition problem with the Yale database, in which the resulting improvement of the performances by the new feature extraction scheme is significant

A media management system and method

Abstract: A media management system for managing a user's media files and information related to such media files and a method of the same. In one aspect, the system and method are operable on a user's computing device. In one aspect, the system comprises a storage management component, a server communication component, a media player component, an instant messaging component, and a media engine component. In one aspect, the method allows a user to browse and/or exchange media files with other users via a network using an instant messaging component.

Robust automatic white balance algorithm using gray color points in images

Abstract: A robust automatic white balance algorithm is proposed in this paper, using extracting gray color points in images for color temperature estimation. A gray color point is the point where R, G and B components are equivalent under the canonical light source. A little color deviation of the gray color point from gray under different color temperature is used to estimate the color temperature of the light source. The test results show that the proposed algorithm can provide a good perceive effect and has the advantage of easy realization, low complexity and robust convergence.

A method and system for content charging

Abstract: A method for content charging includes: the portal server transmits the service activation request to the policy server based on the request for user using the service; the policy server determines the service policy corresponding to the service request after responding to the service activation request and distributes the service policy activation message to the content control gateway; the content control gateway performs the service policy and reports the user service usage message to the policy server; the policy server performs the charging according to the user service usage message. The solution provided by the present invention can realize the exact and low-cost charging for the content service and meet the requirement of QoS dynamic adjustment of the content service.

Method and System for Network Security Control

Abstract: This invention provides a method and system for network security control. A server at the network side analyzes local security correlation information collected and reported by terminal devices, and determines a security strategy according to the result of the analysis. Since correlative reacting between the network side and the terminal side is implemented and the security strategy is established according to the information from the terminal devices, threats against security from a terminal device can be resisted from the beginning. A relative large number of information sources can be taken into account when determining the security strategy such that the determined security strategy is more reasonable and accurate. Furthermore, a differential security service can be provided for terminal devices with different subscriber levels. This invention also provides a method and system for preventing junk mails based on the concept of correlative reacting between a terminal and a server.

Bridge forwarding method and apparatus

Abstract: A bridge forwarding method comprises: receiving a frame from an input port, obtaining the input VLAN ID and a destination MAC address of the frame; determining an output port and an output VLAN ID of the frame, and forwarding the frame according to the output port and the output VLAN ID. A bridge forwarding apparatus includes at least one output port used for receiving a frame from more than one VALN, at least one output port used for transmitting the frame to more than one VALN and a forwarding unit, the forwarding unit obtains the input VLAN ID and the destination MAC address in the frame, determines the output port and the output VLAN ID of the frame, and outputs the frame to the corresponding output port. The method and the apparatus of this invention can realize the bridge forwarding of the Ethernet frames between multiple VLANs.

A method and system for exploring similarities

Abstract: A method and computer readable medium for exploring similar users and items of a media service. In one aspect, a user can explore for similar users iteratively. In one aspect, a user interface is generated that displays a user selectable indicia representing a similar member function for allowing a user to search a media service for at least one other user which has a degree of similarity with respect to the searching user. In another aspect, a method facilitates the search of such a similar user within a media service.

Apparatus for collecting charging information of a data service and charging method thereof

Abstract: The present invention discloses an apparatus for collecting charging information of data service and charging method thereof. The apparatus comprises: a protocol distribution processing module, for classifying service data received from a gateway service node in the wireless network by the protocol type, and sending the classified service data to a protocol processing module of the corresponding protocol type; receiving service data from said one or more than one protocol processing module and sending the service data to the gateway service node; at least one protocol processing module, for receiving the classified service data from the protocol distribution processing module, obtaining charging information of the service data and sending the charging information to a charging system, and transparently transmitting the service data to a packet switched domain network; receiving the service data from a packet switched domain network, obtaining the charging information of the service data and sending the charging information to the charging system, and transparently transmitting the service data to the protocol distribution processing module. This invention can accurately collect the charging information of service data of various classes.

Method and device for stream synchronization of real-time multimedia transport over packet network

Abstract: A method for stream synchronization of real-time multimedia transport over a packet network, in which the multimedia includes a first stream and a second stream which are buffered and played through buffers. The method includes: measuring average transport delays of the first and second streams; measuring transport delay jitters of the first and second streams; and calculating a delay difference between the first and second streams which corresponds to the average transport delays and the transport delay jitters of the first and second streams, and setting buffer durations. A device for stream synchronization of real-time multimedia transport over a packet network is also provided.

Distributed base station system and method for networking thereof and base band unit

Abstract: The present invention discloses a distributed base station system as well as its networking method and base band unit In this system, the base band unit (BBU) and RF unit (RFU) of the base station are separated, and the RFU is equipped with base band RF interfaces for interconnecting the BBU and transmitting data information, thereby forming the base station Based on the separation of the BBU from the RFU, the BBU capacity is further divided at the same time, and every unit is also arranged independently The BBU networking and capacity expansion may be achieved with capacity expansion interfaces and base band RF interfaces provided by BBU interface units in flexible and convenient ways

Method, device and system for monitoring network performance

Abstract: A method for monitoring network performance includes: sending correspondences between a remote network element and a plurality of IP addresses thereof from a network management device to a local network element; according to the correspondences, calculating performance parameters between the local IP address and the plurality of remote IP addresses respectively, by the local network element; making a statistics of the calculated performance parameters by the local network element. A network element for monitoring network performance, connected with a network management device and a remote network element, includes: a receiving unit, a performance parameter processing unit, a performance parameter statistics unit, and the transmitting unit. A network system for monitoring network performance is further provided. According to embodiments of this invention, the efficient measurement of network performance including IP QoS between each two MGWs of an IP network, RTP stream bandwidths, and the like, is realized, thus the message bandwidth of performance test can be saved and processing load of the network management device can be reduced.

Prefix search circuitry and method

Abstract: Prefix searches for directing internet data packets are performed in a prefix search integrated circuit. The integrated circuit includes an array of search engines, each of which accesses a prefix search tree data structure to process a prefix search. An SDRAM is dedicated to each search engine, and SDRAMs share address and control pins to plural search engines on the IC chip. Internal nodes of the tree data structure are duplicated across banks of the SDRAMs to increase bandwidth, and leaf nodes are stored across the SDRAM banks to reduce storage requirements. Within each search engine, data stored in a data register from an SDRAM is compared to a prefix search key stored in a key register. Based on that comparison, an address is calculated to access further tree structure data from the SDRAM. Packet descriptors containing search keys are forwarded to the search engines from an input queue and the search results are forwarded to an output queue, the same packet order being maintained in the two queues.

Method for reducing feedback information overhead in precoded mimo-ofdm systems

Abstract: An improved method for reducing an amount of precoding feedback information in a multi-carrier MIMO (Multiple Input Multiple Output) communication system using precoding is disclosed. At the receiving end, the method jointly selects, while considering transmission quality for each relevant combination of sub-bands and matrices, a limited number of P codebook indices to be included in a vector Π and a limited number of K' sub-bands to be included in a subset ω (m 1,m, m K') of a set Ω of allowed sub-bands. K' is here set to a value K' < K and P is set to a value P < K'. The vector Π and information identifying the subset ω is then conveyed to the transmitting end.

Wireless paging method

Abstract: A wireless network component comprising: a processor configured to implement steps including: receiving a request to establish communications with a wireless terminal, generating a paging list comprising a plurality of cells using a location data for a wireless terminal, and paging the wireless terminal using the cells in the paging list is disclosed.

System, method and apparatus for electronic program guide, streaming media redirecting and streaming media on-demand

Abstract: A method of streaming media, includes: a digital terminal visits an Electronic Program Guide (EPG) server, the EPG server obtains the capability parameters of the digital terminal and a streaming media program list that matches the capability parameters of the digital terminal, and the EPG server sends the streaming media program list to the digital terminal so that a user may choose a program; after the program is chosen by the user, the digital terminal initiates a redirecting request to the request redirector; after receiving the redirecting request, the request redirector obtains the capability parameters of the digital terminal and selects a matching streaming media server to serve the digital terminal according to the capability parameters of the digital terminal and the program chosen by the user. The present invention also provides a streaming media on-demand system, including an EPG system, a redirector.

Illumination Light Wireless Communication System

Abstract: An illumination light wireless communication system, can be used in illumination and to communicate with remote communication device(110). The system includes an illumination communication means(120), an illumination communication terminal(130) and a communication terminal(140). The illumination communication means(120) is used to receive the source signal from the remote communication device(110), transform the received source signal into optical signal and then transmit it wirelessly; the illumination communication terminal(130) is used to transform the received optical signal into electrical signal and then transmit it to the communication terminal(140); the communication terminal(140) is used to receive the electrical signal from the illumination communication terminal(130) and perform a corresponding progress, or transmit the processed electrical signal to the illumination communication terminal(130), namely reverse transmission. The light emitted from the illumination communication means(120) and/or the illumination communication terminal(130) can be used as optical wireless communication source and the source for illumination. It eliminates the bias that the illumination light couldn't be the wireless communication carrier. Furthermore, the invention can be used not only in-house, but also out-house.

Method of implementing ue capability exchange and route control for parallel ims and cs services

Abstract: The present invention discloses a method of implementing UE capability exchange and a method of route control for parallel IMS and CS services in communication system, so as to distinguish among multiple UEs sharing a same IMPU during capability exchange and route control. Said method comprises: each of UEs involved in capability exchange sending its capability information to the opposite party respectively; the opposite party storing these information as well as the correlation between the information and the service ID; The UE including equipment ID of the opposite UE in an initiated service request; service control function entity in the network utilizing the equipment ID to query the established correlation among equipment ID, service ID, and address of the UE, so as to determine the address of the destination UE and route the service request to the destination UE. Said equipment ID identifies effectively a UE in the network.

Wireless relay communication system and method

Abstract: A wireless relay communication system of the present invention mainly includes BS, RS and subscriber terminal. A wireless relay communication method mainly includes: respectively setting downlink relay area and uplink relay area in downlink subframe and uplink subframe of frame structure of physical layer of the BS and respectively setting downlink relay area and uplink relay area in downlink subframe and uplink subframe of frame structure of physical layer of the RS for defining the combination of relay slot or relay subchannel and OFDMA symbol; wireless relay communicating between BS, RS and the subscriber terminals based on the set downlink and uplink frame of the physical layer. The realization of the present invention enable wireless communication system to support advanced relay communication mode, that is to say that MSS/SS can wireless relay access to BS via RS, thereby efficiently extending the valid covering range of BS and increasing the throughput of MSS/SS.

Decoding system and method based on context-based adaptive binary arithmetic coding

Abstract: A CABAC decoding system includes at least a decoding unit group. Each decoding unit group includes N decoding units connected with each other. The M th decoding unit receives parameter information for decoding bins and bit streams to be decoded, decodes the bins of the bit streams to be decoded, obtains the decoding result of the current decoding unit bin, and sends the updated parameter information to the (M+ 1 ) th decoding unit and an output unit. The CABAC decoding system achieves high decoding rate and keeps a reasonable cost of hardware resource, and thereby provides a high efficient and reasonable decoding solution.

Incorporating integrated product development with technology road mapping for dynamism and innovation

Abstract: Market forces, fast rate of increase of technology and globalisation are augmenting the importance of product and process innovation as a source of competitive advantage for manufacturing enterprises. The key factors spearheading market success include the capacity to develop the right products for the right customers using the right processes with shorter development lifecycles than competitors. This paper discusses a methodology used to incorporate Integrated Product Development (IPD) which has been, for the past two decades, the default product development technique with technology road mapping to make it dynamic and innovative. In effect, IPD is key to producing complex, customised products to the market in the shortest possible time. The incorporation involves identifying key market drivers affecting the enterprise, assessing the effect of these market drivers on the evolution of the IPD process, brainstorming for alternative technologies to respond to the IPD so as to leverage enterprise competitive advantage and finally using this information to chart a road map from which we can extract preferred technology solutions.

Method for handoff in mobile communication system

Abstract: Disclosed is a handoff method connected with resource allocation in order to prevent QoS degradation, which may occur during or before/after a handoff on account of channel state change resulting from the mobility of a radio communication apparatus. To this end, a serving base station currently-connected to the radio communication apparatus and a target base station to be connected after a handoff periodically or non-periodically measure uplink/downlink channel states in relation to the radio communication apparatus, and the target base station allocates resources (e.g., time slot, specific subcarrier, or specific frequency band) most suitable for the service requested from the radio communication apparatus during a handoff, thereby preventing QoS degradation due to the handoff. In addition, in the case of a radio communication apparatus using multiple antennas, the serving base station notifies the target base station of a multi-antenna operation mode in relation to the radio communication apparatus before finishing a handoff procedure, thereby minimizing QoS degradation due to the handoff.

Script language based network device configuration management system and method

Abstract: This invention discloses a network device configuration management system comprising at least one control terminal for an operator to enter one or more network device configurations, at least one user interface module for generating one or more first command scripts written in a general-purpose markup language in response to operators' inputs on network device configuration, and at least one management server for generating network device configuration instructions from one or more second command scripts written also in the general-purpose markup language to configure corresponding network devices, wherein the second command scripts are retrieved by the corresponding first command scripts, and the network devices are configured by computer terminal operations and by adding new command scripts for new configuration functions without software programming, and the general-purpose markup language ensure interoperability of various components of the network device configuration management system.

Passive optical network user terminal and method of power supply control and power supply state reporting for the same

Abstract: The present disclosure discloses a passive optical network (PON) user terminal comprising a passive optical network interface unit (PONIU) having access to a PON system, a service data distribution unit (SDDU) connected to the PONIU for distributing service data, a plurality of service processing units (SPUs) for receiving and accordingly processing the service data distributed by the SDDU, a power source for providing power to the above units, and a power supply control unit (PSCU) for controlling the activating/deactivating of the energy-saving power supply to the SPUs, the SDDU, and the PONIU. The present disclosure further provides a method for controlling the PON power supply and for reporting the power supply state. The present disclosure allows control of the energy usage of the PON user terminal to save power when a service in the PON user terminal is not used or when the user terminal uses a backup power source to supply power.

Method for switching route and network device thereof

Abstract: A method for switching route and a network device are disclosed, wherein the method comprises: setting a relationship between a port number of each destination port and a port number of the transmitting port, the port number of each transmitting port is the port number of the corresponding destination port; when there is a service failure in any destination port, modifying the port number of the transmitting port corresponding to a fault destination port into the port number of the backup port corresponding to the fault destination port in the set relationship, and saving the modified relationship; after receiving a data packet, the network device transmitting the data packet based on the saved relationship. The network device comprises a CPU, a first routing unit and a second routing unit. In accordance with the present invention, the time consumed by modifying routing data can be reduced, enabling the network device to switch route quickly and the user services to recover quickly.

Analytical network process for software selection in product development: A case study

Abstract: Application of software for manufacturing processes is one of the resolutions many enterprises have resorted to in the 21st century. This has been a result of increased complexity of products, globalization, rapid changes in technology and so on. The idea was that application of software especially for product development would increase the competitive advantage of industry nevertheless the irony has been that most of the investment in software has not achieved the expected results. We carry out a case study to introduce a methodology, the analytical network process as a multiattribute strategic decision making approach to help in the selection of appropriate software to suit the product development process of a particular product.

A method for notifying presence information, a presence server, a client and a system

Abstract: A method for notifying presence information, a presence server, a client and a system. The watcher subscribes the presence information of the presentity via the presence server; the presence server receives the distribution information sent by the persentity client or application sever and judges whether the watcher has set a notification rule, if the notification rule has been set, the presence server processes the distribution information according to the process rule related to the content preset by the watcher and persentity and the said notification rule; if the notification rule has not been set by judging, the presence server processes the distribution information according to the process rule related to the content preset by the watcher and persentity; the presence server sends the processed distribution information to the watcher. The said notification rule can be preset in the presence XDMS or the presence server by the watcher, can be produced when subscribing. By the method and system, the presence server can determine whether the user is notified and which presence information is notified according to the requirement of the user.

Method for implementing a push service

Abstract: This invention provides a method for implementing a Push service, which is used to solve the problems of low delivery success rate and relatively long time delay. The method includes the following steps: a Push Initiator (PI) submitting a Push message to a Push Proxy Gateway (PPG); the PPG sending the Push message to a Short Message Service Center (SMSC); the SMSC segmenting the Push message according to the Push content to obtain a group of short messages, and scheduling the group of short messages in a transaction mode and delivering them to a mobile station; after receiving the group of the short messages, the mobile station recombining them to show the Push message. This invention can improve the delivery success rate of a Push message.

Method for Measuring Multimedia Video Communication Quality

Abstract: A method for measuring multimedia communication quality is disclosed. The multimedia video communication quality may be objectively reflected through the embedment and extraction of digital watermark under a precondition that the quality of the multimedia video data is not obviously affected. In the invention, each frame of the multimedia video data is uniformly divided into blocks of equal size and watermark data is embedded in each of the blocks, so that the watermark may be uniformly distributed. The multimedia video data are divided into groups, and the watermark is embedded in a part of the frames with equal interval between the frames in each group to reduce the effect of the watermark on the data. The watermark information is directly embedded in the spatial domain of the original video data. The PSNR of the video data is linearly fitted using the accuracy rate of the recovered watermark relative to the original watermark, and the fitted PSNR is regarded as a measurement indication of the multimedia video communication quality. Post-processing such as smoothing filtering is performed on video frames after watermark extraction to eliminate the effect of the watermark on the multimedia video data quality.

A method and a system for optimizing the radio network layer to implement the network interconnection, and a method for interconnection between the radio network and the wired network

Abstract: A method for optimizing a radio network layer to implement a network interconnection is provided. A radio network controller is divided into radio access network servers and wireless adapters configured in a base station. The wireless adapters are adapted to process related radio interface protocols, and are connected to an optical access network via an adaptation function. The radio access network servers and a core network are respectively connected to optical network units to implement the interconnection between an optical network and a radio communication network. Therefore, the single-point failure is effectively prevented, the flexibility and extensibility are improved, it is convenient for networking, and the network coverage is enlarged. It is suitable for the service development and radio access applications in the future, and facilitates the combination with the wired network.

Concatenated zigzag hadamard codes

Abstract: In this correspondence, we introduce a new class of low-rate error correction codes called zigzag Hadamard (ZH) codes and their concatenation schemes. Each member of this class of codes is specified by a highly structured zigzag graph with each segment being a Hadamard codeword. The ZH codes enjoy extremely simple encoding and very low-complexity soft-input-soft-output (SISO) decoding based on a posteriori probability (APP) fast Hadamard transform (FHT) technique. We present an asymptotic performance analysis of the proposed concatenated ZH codes using the extrinsic mutual information transfer (EXIT) chart for infinite-length codes. We also provide a union bound analysis of the error performance for finite-length codes. Furthermore, the concatenated ZH codes are shown to be a good class of codes in the low-rate region. Specifically, a rate-0.0107 concatenated code with three ZH components and an interleaver size of 65536 can achieve the bit error rate (BER) performance of 10/sup -5/ at -1.15dB, which is only 0.44 dB away from the ultimate Shannon limit. The proposed concatenated ZH codes offer similar performance as another class of low-rate codes-the turbo-Hadamard codes, and better performance than superorthogonal turbo codes, with much lower encoding and decoding complexities.