Patent application number | Description | Published |
20090013236 | Method And Apparatus For Cascade Encoding - A cascade encoding method and apparatus are applied to a handheld television system or other fields. The method includes the following: A. Reed-Solomon (RS) encoding is performed on inputted Medium Access Control (MAC) packets, and coded MAC packets are outputted; and B. Low density parity check code (LDPC) encoding is performed on the coded MAC packets, and LDPC encoding blocks are outputted. The apparatus includes an RS coder and an LDPC coder. The RS encoding and LDPC encoding are cascaded to encode an inputted code flow, so as to reduce an error rate. Meanwhile, bytes in one RS encoding data block are dispersed into different LDPC blocks to be encoded through byte interleaving, thereby sufficiently utilizing error code characteristics of the RS encoding and the LDPC encoding for decoding, and improving error correction capability of a system. | 01-08-2009 |
20090104704 | APPARATUS AND METHOD FOR ANAYLIZING SAMPLES - A sample analyzer comprises a reaction tray, a sample/reagent tray, and a probe. The reaction tray performs a first number of stops and rotations during an operating cycle, wherein the first number is configured to cause each of the reaction vessels to stop once at a position for the test before any of the number of the reaction vessels stops at the position for a second time. The sample/reagent tray rotates one of a sample container and reagent containers to a sample/reagent retrieving position during an operating cycle. The probe dispenses test sample(s), first reagent, and second reagent during different periods in different stop periods during an operating cycle. A method for analyzing samples is also disclosed. | 04-23-2009 |
20090104710 | COLORIMETRIC ABSORBANCE MEASUREMENT METHOD, APPARATUS AND SYSTEM - Various embodiments disclose a colorimetric absorbance measurement method and a system for performing the same. The method comprises driving a reaction tray carrying a plurality of reaction cuvettes to rotate at a speed; transferring or rotating filters on a filter wheel to a light path of a light beam, starting from a filter of a first wavelength; and sampling photoelectric data when the light beam has passed through each reaction cuvette in some embodiments. The method ensures consistency in the measurement and synchronization between the calibration and the sample test and reliability of the measurements. Various embodiments simplify data processing and reduce the complexity of the system. | 04-23-2009 |
20090201943 | METHOD FOR TRANSFERRING TEST MESSAGES AND NETWORK ELEMENT DEVICE - A method for transferring test messages includes a Network Element (NE) A and NE B negotiating and determining a logical channel type. The Link Management Protocol (LMP) entity of NE A constructs a test message packet which includes the local Ethernet data interface ID, and transfers the test message packet to the local packet control module. The packet control module of NE A encapsulates the test message packet according to the logical channel type determined through negotiation, and transfers the encapsulated packet to the local transmitting interface. The receiving interface of NE B identifies and receives the packet. The packet control module of NE B obtains the packet from the local receiving interface and then encapsulates the packet. Next the packet control module of NE B transfers the test message packet obtained after decapsulation to the local LMP entity. Therefore, the test message can be transferred on the Ethernet data interface, and the auto discovery of the Ethernet physical link of the NE device succeeds once the test message is transferred successfully. | 08-13-2009 |
20100118874 | METHOD, SYSTEM AND PEER DEVICE FOR MESSAGE ROUTING - A method for message routing in a Peer to Peer (P2P) network includes the following steps: when a request message is routed from a source peer to a destination peer, the source peer and every intermediate peer that needs to be recorded add path information of the local peer to the request message and forward the request message to a next hop until the message arrives at the destination peer, where the path information includes a communication address of the local peer; the destination peer adds the path information in the request message to a response message obtained according to the request message; and the response message is routed from the destination peer to the source peer according to the path information. A source peer, an intermediate forwarding peer, and a destination peer as well as a message routing system are also disclosed. With the present invention, recursive message routing is implemented in a structured P2P network. Because a peer in the P2P network no longer needs to maintain a local transaction table, resources of the peer are saved and the cost of the P2P network is less. | 05-13-2010 |
20100189030 | MULTIPLE ANTENNA MODE CONTROL METHOD BASED ON STATION - The present invention provides a multiple antenna mode control method based on Station, including the steps: step 1 the Station reports a multiple antenna mode set or subset supported by the Station to the Access Point; step 2, the Access Point returns a multiple antenna mode set or subset supported by the Access Point to the Station, or returns directly a multiple antenna mode set or subset supported by both the Station and the Access Point to the Station; and step 3, a multiple antenna mode is chosen from a multiple antenna mode set or subset supported by both the Station and the Access Point for communicating between the Station and the Access Point. Thereby, a best transmission quality can be achieved during data transmission, and furthermore, the retransmission times and the error frame rate are reduced, and the network throughput is decreased. | 07-29-2010 |
20100227560 | METHOD AND APPARATUS FOR ESTIMATING TIME OF ARRIVAL - Method and apparatus are provided for estimating Time of Arrival (“TOA”). The method includes: performing channel estimation according to a Normal Burst (“NB”) free of interference and a local training sequence and generating a channel estimate, performing TOA estimation according to the channel estimate, and adjusting a synchronization position of the current NB according to a TOA estimation result. Interference to signals is cancelled before the TOA estimation, thus overcoming energy estimate deviation arising from interference in a strongly interfering radio environment, as occurs in the prior art, and preventing the impact on the TOA estimation. The disclosed methods and apparatus provide for more accurate energy estimates in a strongly interfering radio environment. The technical solution under the present invention does not require adjustment of the method of adjusting the search window. | 09-09-2010 |
20100290347 | METHOD, DEVICE AND SYSTEM FOR DIAGNOSING WHETHER NODES ARE ABNORMAL IN P2P NETWORK - In the field of communications, a method, device and system for diagnosing whether nodes are abnormal are provided. The method includes: sending a diagnostic message with an identifier of a message to be detected; determining whether an acknowledgement message sent from a node corresponding to the diagnostic message is received; and if the acknowledgement message is received, determining that the node is a normal node; otherwise, determining that the node is an abnormal node. A device for diagnosing whether nodes are abnormal, an intermediate node device and a system for diagnosing whether nodes are abnormal are further provided. The method, device and system have the advantage of diagnosing whether a node is abnormal and whether a node is an abnormal node. | 11-18-2010 |
20100322331 | ADAPTIVE CODEBOOK PROCESSING METHOD - An adaptive codebook processing method comprises: step S102, initializing the local codebook set by using the initial codebook set; and step S104, updating the initialized local codebook set by using the feedback codebook set. | 12-23-2010 |
20110004699 | METHOD, SYSTEM AND SESSION CONTROL UNIT FOR RELIEVING NETWORK TRAFFIC - The present invention relates to the Internet field, and discloses a method, system and session control unit for relieving network traffic. The method includes: receiving a content request message; searching a network for data corresponding to content requested by the content request message, and selecting a content replication point according to a search result; and instructing the selected content replication point to replicate and forward the data to a requesting node. The session control unit includes a receiving unit, a searching unit, a selecting unit, and an instruction sending unit. The system includes a session control unit and a content replication point. In the technical solution under the present invention, a content replication point is selected intelligently by identifying the user request information, and the selected content replication point is responsible for replicating and forwarding the data, thus relieving the network traffic and load. | 01-06-2011 |
20110093564 | METHOD, SYSTEM, SERVICE SELECTION ENTITY FOR SELECTING SERVICE PROVISION ENTITY - The present invention discloses a method, system, service selection entity, and service management entity for selecting a service provision entity in a peer-to-peer (P2P) network, so as to select heterogeneous service provision entities for heterogeneous service requesting entities. The method includes: receiving service capability information of service provision entities; obtaining service request information of a service requesting entity; and selecting a service provision entity of an appropriate service capability to provide a service for the service requesting entity according to the service capability information of service provision entities and the service request information of the service requesting entity. The present invention is applicable to P2P overlay networks. | 04-21-2011 |
20120244900 | User Scheduling Method and Base Station in Coordinated Scheduling - The invention provides a method and a device for confirming a downlink inner loop power control mode by a Node B in an idle mode and in a CELL_FACH state. The method includes that: when the Node B detects that there is User Equipment (UE) using an E-DCH in the idle mode or in the CELL_FACH state, confirming to use a mode 0 to receive Transmit Power Control (TPC) bit information sent on a Dedicated Physical Control Channel (DPCCH) by the UE, and performing downlink inner loop power control on a Fractional Dedicated Physical Channel (F-DPCH). The method and device provided in the invention enable the inner loop power control mode for the F-DPCH made by the Node B to be consistent with the TPC bit information mode fed back by the UE, and enable the F-DPCH to use proper transmit power to transmit. | 09-27-2012 |
20120252515 | Coordinated scheduling method and system in coordinated multi-point transmission - The present disclosure provides a coordinated scheduling method and system in coordinated multi-point transmission. The method includes: a central control cell of a region determines priorities of users to be scheduled in all coordinated cells according to user information from other coordinated cells in the region; the central control cell schedules users in each coordinated cell according to the determined priorities and informs a corresponding coordinated cell of the information on a user that is finally determined to be scheduled; and after receiving the scheduling information from the central control cell, the corresponding coordinated cell schedules a user in corresponding time and frequency resources. The present disclosure ensures performance of a user with the highest priority, further, considering the performance of the whole system, scheduling is performed in a scheduling stage according to a principle that the subsequent users to be scheduled should cause as little interference on the scheduled users as possible, therefore, the interference between scheduled users is effectively reduced, and the capacity of the system is greatly increased. | 10-04-2012 |
20120322499 | Method and system for handover based on radio resource allocation database - The disclosure discloses a method for handover based on a radio resource allocation database. The method includes that the radio resource allocation database is constructed and dynamically maintained; after receiving a handover request from a User Equipment (UE), a Base Station (BS) determines in the database a Radio Access Technology (RAT) and the corresponding carrier frequency resources suitable for a current communication condition of the UE for the UE according to a handover reason in the handover request, and notifies the UE of information regarding the determined RAT and information regarding the corresponding carrier frequency resource; and the UE performs QoS verification on the RAT and the corresponding carrier frequency resources notified by the BS, and switches to the corresponding carrier frequency with the RAT notified by the BS when the QoS on the RAT and the corresponding carrier frequency resources is superior to that of current communication. Meanwhile, the disclosure further discloses a system for handover based on a radio resource allocation database. The disclosure improves a resource usage rate and the QoS of a current communication system. The disclosure enables the UE to complete the handover quickly, such that user experience is improved. | 12-20-2012 |
20130121268 | Method and Device for Adaptive Adjusting Uplink and Downlink Bandwidth - The present invention discloses a method for adaptively adjusting uplink and downlink bandwidth, which includes: a base station counting a usage status of the uplink and downlink bandwidth in a preset time, and obtaining a bandwidth amount ΔBW | 05-16-2013 |
20130137445 | Method and apparatus for allocating spectrum - A method and an apparatus for allocating spectrums are provided in the disclosure. The method includes: reconfigurable spectrums for a target group domain are calculated, wherein said reconfigurable spectrums contain one or more of a dedicated spectrum, a reusable spectrum and a loanable spectrum; during the system reconfiguration, spectrums are allocated to cells of the target group domain in a non-overlap region after spectrums are allocated to cells of the target group domain in an overlap region according to the reconfigurable spectrums. By use of the disclosure, the spectrum allocation can be implemented during the system reconfiguration, and interference can be effectively suppressed. | 05-30-2013 |
20130148615 | Method and System for Channel Reservation - The disclosure provides a method and a system for channel reservation. The method comprises: a sending station sending a channel reservation request message to a receiving station on a first number of fundamental channels, wherein the first number is an integer greater than or equal to 1, and each one of the fundamental channels is a minimum-bandwidth channel defined in a system in which the sending station and the receiving station locate; the receiving station sending a channel reservation acknowledgement message to the sending station on a second number of fundamental channels, wherein the second number is an integer greater than or equal to 1; and the sending station receiving the channel reservation acknowledgement message, and completing channel reservation with the receiving station. With the disclosure, interference caused by other sending stations can be avoided. | 06-13-2013 |
20130176954 | Method and System for Channel Data Transmission in Wireless Network - The present invention discloses a method and system for channel data transmission in a wireless network. The method includes: after a transmitting station and a receiving station determine a channel bandwidth to use for data transmission by interaction and negotiation, the transmitting station transmitting data to the receiving station with the determined channel bandwidth. The present invention further discloses a transmitting station. The present invention can solve the existing collision problem caused by contention for channels between the hidden stations and the current transmission stations, and thus can take full advantage of the effective transmission bandwidth in the large bandwidth system of a wireless network and increase the frequency spectrum utilization of large bandwidth, and at the same time ensure the backward compatibility with the large bandwidth system and its co-existence with conventional systems. | 07-11-2013 |
20130195018 | METHOD AND SYSTEM FOR CHANNEL SCANNING IN WIRELESS NETWORK - The disclosure discloses a method and a system for channel scanning in a wireless network. The method includes that an Access Point (AP) and/or Non-AP Stations (STAs) associated with the AP performs channel scanning according to one or more of the following ways: Way A: the AP performs Overlapping Basic Service Set (OBSS) channel scanning on channels within one or more different channelizing sets with a same period or with different periods; Way B: part or all of STAs associated with the AP perform OBSS channel scanning on channels within one or more different channelizing sets with a same period or with different periods; and Way C: the AP or part or all of STAs associated with the AP performs single OBSS channel scanning on one or more channelizing sets under event triggering. With the present disclosure, the channel scanning procedure of an equipment supporting multiple channelizing set schemes under circumstance of OBSS is planned. | 08-01-2013 |
20130215863 | Method and apparatus for establishing network in wireless network - The disclosure provides a method and an apparatus for establishing a network in a wireless network. The method includes: a wireless station selects a working channel and a primary channel which satisfy a bandwidth requirement and an interference level in a channelized set within a given frequency band according to local configuration information and/or through channel scanning and interference detection; and the wireless station establishes a network according to the selected working channel and primary channel. Through the disclosure, a wireless network compatible with the current Wireless Local Area Network (WLAN) can be established according to the configuration information or scanning result when the wireless station supports multiple channelized set schemes within a given frequency band, and the utilization of available spectrum resources is maximized. | 08-22-2013 |
20130260780 | Method and apparatus for transforming working mode in cognitive radio system - The disclosure discloses a method and an apparatus for transforming a working mode in a Cognitive Radio (CR) system, which are used for solving the technical problem that a subsystem maliciously occupies the spectrum resources which are temporarily unused by other system in a system adopting a CR technology. In the disclosure, a network side measures the demand degree of each cell on borrowed spectrum and sets a conditions of enabling and disabling the CR working mode to determine whether to perform working mode transformation on the cell and specify a network allocation method for a mobile terminal in a corresponding working mode, so as to coordinate the allocation of the spectrum resources, and avoid the abuse of the borrowed spectrum resources; the CR working mode of the cell with low demand degree is disabled by the network side; the borrowed spectrum resources of the cell are released; and therefore, more borrowed spectrum resources are available to the other cells having a higher demand degree on the borrowed spectrum, and the overall performance of the system is improved. | 10-03-2013 |
20130272288 | TRANSMISSION METHOD AND DEVICE IN WIRELESS LOCAL AREA NETWORK - The disclosure claims a transmission method and device in WLAN, wherein the method includes: a transmitting STA or a receiving STA performing channel detection and/or channel scanning on a channel of the first channel set and/or the second channel set; if the result of the detection and/or scanning satisfies a preset condition, the transmitting STA and the receiving STA exchanging a reservation message on the channel of the first channel set or the second channel set, wherein the reservation message is configured to reserve a channel of the second channel set for transmission; the transmitting STA transmits a data frame to the receiving STA on the reserved channel of the second channel set; and after receiving the data frame, the receiving STA transmits acknowledgement information of the data frame on the channel of the first channel set or the second channel set. | 10-17-2013 |
20130286891 | Method and System for Switching Working Mode for Backward Compatible Broadband Wireless Network - The disclosure discloses a method and a system for switching a working mode for a backward compatible broadband wireless network, in order to solve the technical problem of switching between each working mode when various compatible modes based on different channelized sets exist in the broadband wireless network. In the disclosure, an access point (AP) indicates its current working mode by a system configuration message; the AP instructs a non-AP associated with the AP to switch a working mode by a mode switching message or a frame exchange sequence; and the non-AP switches the working mode according to instruction information included in the mode switching message or the frame exchange sequence after receiving the mode switching message or the frame exchange sequence. Through the scheme of the disclosure, a wireless point can be switched between each working mode when various compatible modes based on different channelized sets exist in the broadband wireless network, thereby setting up a broadband wireless network supporting backward compatibility. | 10-31-2013 |
20130310062 | SENSING AIDING METHOD AND SYSTEM FOR COGNITIVE RADIO - The disclosure discloses a sensing aiding method for cognitive radio. The method includes the following steps. a high level node transmits configuration information to a base station; the base station combines with a subordinate node of the base station to perform frequency spectrum sensing measurement, in which the subordinate node has sensing capability, and feeds back a result of the sensing measurement to the high level node; and the high level node formulates a corresponding WS allocation policy according to the received result of the sensing measurement. The disclosure also discloses a system. By the method and the system of the disclosure, the high level node transmits the configuration information to the base station; the base station performs the spectrum sensing measurement in combination with the subordinate node having the sensing capability of the base station in a designated frequency band and feeds the result of the sensing measurement back to the high level node; and the high level node formulates the corresponding WS allocation policy according to the result of the sensing measurement. Available white band resources are acquired; the probability of base station configuration failure is reduced, and the overhead caused by configuration failures is reduced. | 11-21-2013 |
20140038659 | Method and Device for Controlling Power of Cognitive Radio System - The disclosure provides a method and a device for controlling power of a cognitive radio system. The method comprises: measuring a system parameter of a cognitive radio system and a system parameter of a TV system located in an adjacent channel of the cognitive radio system; determining a maximum transmission power of the cognitive radio system according to the system parameter of the cognitive radio system and the system parameter of the TV system; controlling an actual transmission power of the cognitive radio system to be less than the maximum transmission power. In the disclosure, interference to the TV system can be reduced maximally, so that the sensitivity of a receiver inside the TV system is guaranteed. | 02-06-2014 |
20140099984 | User Scheduling Method and Base Station in Coordinated Scheduling - The present invention discloses a method for scheduling users in coordinated scheduling, which is applied in a long term evaluation-advanced system, a coordinated cell determines and stores user pairing information in initial scheduling, and the coordinated cell uses the user pairing information that has been stored to determine a scheduled user in subsequent iterative scheduling. The present invention also discloses a corresponding base station. With the scheduling schemes in the present invention, in intra-cell scheduling, user pairing information is stored in an initial scheduling process and is used in subsequent iterative scheduling without performing multiple user pairing search in the iterative scheduling, which reduces the computation amount in the iterative scheduling and system resources occupied by the iterative scheduling and accelerates the system processing time in a premise of not reducing the system performance, thereby making the performance in the whole domain trend to the optimal. | 04-10-2014 |
20140115814 | CLEANING VEHICLE AND CANTILEVER SYSTEM OF THE CLEANING VEHICLE - A cleaning vehicle includes a vehicle body, a cantilever system, and a cleaning apparatus. The cantilever system includes a rotary table fixed on the vehicle body, a first cantilever pivotably mounted on the rotary table, and a second cantilever pivotably connected to the first cantilever. The cleaning apparatus is fixed to one end of the second cantilever opposite to the first cantilever. The cantilever system further includes a first adjusting pole, a second adjusting pole, and a third adjusting pole, for adjusting the position and the angle of the cleaning apparatus. | 05-01-2014 |
20140115815 | CLEANING VEHICLE AND CLEANING APPARATUS OF THE CLEANING VEHICLE - A cleaning vehicle includes a vehicle body, a cantilever system, and a cleaning apparatus. The cantilever system includes a rotary table fixed on the vehicle body, a first cantilever pivotably mounted on the rotary table, and a second cantilever pivotably connected to the first cantilever. The cleaning apparatus is fixed to one end of the second cantilever opposite to the first cantilever. The cleaning apparatus includes a bracket, a sweeping unit rotatably mounted to the bracket, a blower-vacuum unit, and a spraying unit. | 05-01-2014 |
20140138501 | POLE ASSEMBLY - A pole assembly to be mounted on a supporting platform to support photovoltaic modules includes a supporting pole, a fixing pole pivotably attached to the supporting pole, a first mounting member fixed on the supporting platform, and a second mounting member fixed on the supporting platform. The first mounting member defines a locking slot. A pin is attached to one end of the supporting pole opposite to the fixing pole. The pin is locked into the locking slot of the first mounting member. One end of the fixing pole opposite to the supporting pole is fixed to the second mounting member. | 05-22-2014 |