138results about How to "Reduce transmission load" patented technology

Sending channel related parameters known as channel state information (CSI) over a WLAN return channel. The size of these coefficients is not fixed. Rather, the coefficients are quantized in a certain resolution, which is determined adaptively according to a measure of the channel quality. This allows minimizing the component of the bandwidth of the wireless connection that is not used for payload transfer.

The invention provides a smart device network access method and device. The smart device network access method includes that: a soft access point soft AP and a sniffer on a smart device are started for monitoring; the smart device provides its device information to a mobile terminal where the soft AP is accessed, and acquires route information of a WiFi network provided by the mobile terminal through sniffer monitoring; the smart device is connected with a household route device according to the received route information. According to the smart device network access method, when the smart device is accessed into the wireless network, the mobile terminal does not need wireless network connection switching, so the smart device can be accessed into the wireless network quickly and conveniently, the network transmission load is low, and wireless network resource expenditure is small.

The invention provides a heterogeneous database platform data synchronization method. The heterogeneous database platform data synchronization method includes the following steps that a first external data exchange module and a second external data exchange module which correspond to a source database and a target database respectively are installed in a PostgreSQL database, and a first external data exchange module extender, a first external server, a second external data exchange module extender and a second server are built, wherein the source database and the target database are heterogeneous databases; a first external data table and a second external data table which are in mapping relation with the source database and the target database respectively are built, and triggers for capturing data changes are built. The PostgreSQL database and the corresponding data exchange modules serve as media innovatively to achieve data synchronization/copying between external multi-source heterogeneous databases.

In a tunneling method and apparatus for multicasting between an IPv4 network and an IPv6 network, a multicast table containing information about receive and transmit interfaces in a multicast delivery tree structure for each of the IPv4 network and the IPv6 network is set, a multicast address area is assigned to the first network and a multicast address area is assigned to the second network compatible with the first network, an IPv6 multicast packet containing source and multicast destination addresses of the IPv6 network is received, and when a destination network of the IPv6 multicast packet is the IPv6 network connected to the IPv4 network, source and multicast destination addresses of the IPv4 network are extracted from source and multicast destination addresses contained in the IPv6 multicast packet, the IPv6 multicast packet is capsulated into an IPv4 format, and the IPv4 format packet is multicast-tunneled to the IPv6 network through the IPv4 network by referring to the multicast table.

The coding efficiency and the amount of processing can be further improved in methods that use the correlation between spatial and temporal directions to estimate parameters that are required for predictions. In LM prediction that predicts pixel values of chrominance, based on pixel values of luminance, an index for a filter that downsamples a luminance image is adaptively signalled.

As a method of authenticating an RFID tag in order to reduce a load of a server and improve security, an RFID reader connects an RFID DB server through a network and communicate with a plurality of tags, requests tag information to the tag, and receives an identifier of an array having an index, an index of the array having the index, and an encrypted tag ID from the tag. The array having the index is created by using a master key corresponding to the identifier of the array having the index, which is received from the RFID DB server, an encryption key is created by extracting an array value corresponding to the index, and an tag ID is acquired by decrypting the encrypted tag ID by using the created encryption key.

A vacuum processing apparatus transfers a wafer between a first transfer arm and a second transfer arm via a rotary stage; acquires position data of a peripheral portion of the wafer by using a line sensor while rotating the rotary stage sustaining the wafer before a vacuum process thereon; calculates a center position and a direction of the wafer based on the position data; controls a rotation of the rotary stage to adjust the direction of the wafer based on the calculation result; and controls the second transfer arm such that the second transfer arm conveys the wafer to a wafer mounting member inside a vacuum processing chamber while allowing a center of the wafer to be aligned to a center of the mounting member based on the calculation result.

The invention discloses a spatial information network isomerism dynamic networking method based on a layered autonomous area. The method includes the following steps that according to components and functions of all parts in the whole spatial information network, a spatial information network system structure is set up; according to the properties, the functions, the zone positions and the requirements, all nodes in the network are divided into different layered autonomous areas with independent networking routing strategies; boundary nodes are selected to separate a control link from a service link and the inter-domain control information transmission and the intra-domain control information transmission are separated; an intra-domain sub-layer which is in line with international standards and an inter-domain sub-layer which has the same protocol and functions on all the nodes are set up to form a layered autonomous area model network protocol stack frame. According to the spatial information network isomerism dynamic networking method based on the layered autonomous area, coupling is little, the network nodes are plugged when needed, and the network managing control efficiency is high.

This invention discloses a method for synchnizing master and backup in a memory data bases including: initializing the database, registering lists being synchronized in the database in an out-of-step image registration region and initializing the corresponding out-of-step image region and queues, writing the vary number of the wary list into corresponding out-of-step queue of related lists and register the varlance in a related out-of-stop, bundling and sending the out-of-step registration to the receive end data base and canceling the related registration in the out-of-step image region and out-of-step queue. The receive end data base receives data and refreshes related list register to return back the answered information to continue synchronizing other out-of-step data.

For the purpose of associating a device having a sensor with a device which utilizes a detection result so as to enable various operation control, a refrigerator includes a temperature sensor for detecting a compartment temperature, a storage section for storing a detection result, an information association control section for controlling transmission of the detection result to a microwave oven, and the like, and an NIC for communicating with the microwave oven through a network, or the like. The microwave oven includes an NIC of the same type, an information association control section for controlling reception of the compartment temperature transmitted from the refrigerator, and the like, and a principal part control section for controlling the operation of principal part of the microwave oven. The microwave oven heats food taken out of the refrigerator by performing heating control according to the compartment temperature at the time when the food is taken out of the refrigerator, i.e., the core temperature of the food.

A method for managing wireless multi-hop network key is applicable to a security application protocol when a WAPI frame method (TePA, an access control method based on the ternary peer-to-peer identification) is applied in a concrete network containing a Wireless Local Area Network, a Wireless Metropolitan Area Network AN and a Wireless Personal Area Network. The key management method of the present invention includes the steps of key generation, key distribution, key storage, key modification and key revocation. The present invention solves the technical problems that the prior pre-share-key based key management method is not suitable for larger networks and the PKI-based key management method is not suitable for wireless multi-hop networks; the public-key system and the ternary structure are adopted, thereby the security and the performance of the wireless multi-hop networks are improved.

A transfer request processing portion 10 confirms the kind of requested data and sets, in a transfer mode setting portion 11, a transfer mode for respectively allocating a first data buffer 16 to a first DMAC 12 and a second data buffer 17 to a second DMAC 13 when parallel data transfer is necessary, or a transfer mode for allocating both of the first data buffer 16 and the second data buffer 17 to the first DMAC 12 or the second DMAC 13 that has been started at that time when parallel data transfer is not necessary. The first DMAC 12 and/or the second DMAC 13 performs data transfer by using the data buffer instructed by the transfer mode.

The invention relates to a mobile communication field, discloses a signal detection method of a channel in an E-DCH, capable of improving reliability and accuracy of ACK/NACK and comparative authorization detection. In the invention, a RNC provides an E-HICH/E-RGCH channel to an UE comparatively to a downlink DPCCH power offset, the UE detects the ACK/NACK and a comparative authorization signal according to the power offset. SIR of the E-HICH/E-RGCH is obtained by the power offset and the SIR of DPCCH already estimated according to a known pilot. Then detection thresholds for ACK/NACK and/or the comparative authorization signal is determined based on the SIR of the E-HICH and/or the E-RGCH, and soft-decision values of the ACK/NACK and/or the comparative authorization signal are weighted and combinated by the SIR of the E-HICH and/or the E-RGCH.

The invention discloses special lubricating oil of a bearing bush of a supporting roller of a rotary kiln and a manufacturing method thereof. The special lubricating oil contains the following components according to the content by mass percent: 49 to 69 percent of liquid paraffin chlorination and condensation synthetic oil, 15 to 35 percent of poly-alpha-alkene synthetic oil, 0.5 to 1.5 percent of tackifier, 2 to 4 percent of nano colloid molybdenum disulphide powder, 3.5 to 5.5 percent of organic molybdenum complex additive, 2.5 to 4.5 percent of borate complex additive, 1 to 3 percent of additive T406, 0.4 to 0.6 percent of antioxidant T203, 0.7 to 0.9 percent of antioxidant T531 and 0.6 to 0.8 percent of antioxidant T512. The invention has the favorable performances of extreme-pressure resistance, abrasion resistance, high-temperature resistance, water sprinkling resistance and oxidation resistance, can fully act as the functions of repairing the wire drawing of the bearing bush, decreasing the abrasion and lowering the temperature of the bearing bush, prolongs the use period of the bearing bush of the supporting roller and realizes the aims of energy saving and consumption reduction.

A window shade includes an upper track, a lower track, a shade assembly, a lift cord means and a bead chain means. The lift cord means includes two boxes located in the upper track at two sides thereof and a flattened cord winding on the periphery of a jutting ring located in each box. By coupling a transmission axle with a transmission means located at one side of the bead chain means a concurrent transmission can be formed. Thereby the bead chain can aid retraction of the shade assembly through the transmission means to reduce transmission load of the bead chain means. The bead chain means of a suitable loading capability can be selected according to the weight of the shade assembly to reduce the load of the transmission means to facilitate extension of the shade assembly.

The invention provides a synchronous transmission control method and device for a digital retina video stream and a feature stream, electronic equipment, network video monitoring equipment and a computer readable medium. The method comprises the following steps: acquiring a monitoring video stream; generating a concentrated video stream corresponding to the monitoring video stream by adopting a video concentration technology; extracting feature information in the monitoring video stream to form a feature stream; and respectively uploading the concentrated video stream and the feature stream toa cloud server. Because the concentrated video stream has the advantages of small occupied storage space, high fidelity factor and the like, compared with a mode of uploading all monitoring video streams to a cloud server in the prior art, the method has the advantages of small occupied storage space, low network transmission load, high transmission efficiency and the like; meanwhile, the featurestream is extracted according to the monitoring video stream and uploaded to the cloud server, thereby facilitating the quick recognition of the positioning target and the mining of the movement track of the positioning target, and effectively improving the retrieval efficiency of the monitoring video.

The invention belongs to the technical field of traffic image processing and traffic information, and discloses a whole-course continuous track vehicle tracking system and method based on a laser radar network. The whole-course continuous track vehicle tracking system based on the laser radar network comprises the laser radar network, other roadside sensors, a roadside processor, a fusion server and network communication equipment, the whole-course continuous track vehicle tracking method based on the laser radar network comprises the following steps: synchronizing time; scanning a monitoringrange; performing vehicle multi-target detection; tracking a track; carrying out snapshot and license plate recognition; carrying out event analysis; carrying out coordinate conversion; carrying out encoding the information; reporting detection point information; fusing information in the whole process; and displaying vehicle full course trajectory. According to the invention, real-time and whole-course continuous trajectory tracking can be carried out on vehicles on an expressway, video images in an event occurrence time period can be accurately captured in combination with a camera, timely processing of hit-and-run vehicles is realized, and small time delay, low calculation load and small network transmission load are realized.

Embodiments of the present invention disclose a method and apparatus for service identifying and routing in a multimedia broadcast and multicast service (MBMS) system. The apparatus includes a radio access network equipment (RNC) and a core network equipment (CN) communicating with each other via an Iu connection; CN includes a module for service information transmission which is used to send the identity information corresponding to the service the UE joins to RNC, and RNC includes a module for service identifying and routing which is used to identify the service according to the identity information and determine the routing of the MBMS service in the non access stratum. RNC obtains the identity information corresponding to the service the UE joins through interaction of interface information with CN, identifies the service and determines the routing of the MBMS service in the non access stratum.

The invention discloses a method and equipment for transmitting data. The method includes that relay nodes RN acquire transmission layer care-of addresses distributed by a target donor evolved node B DeNB for the relay nodes RN; the relay nodes RN inform serving gateways S-GW corresponding to user equipment UE of the transmission layer care-of addresses, and the serving gateways S-GW transmit the data which are required to be transmitted to the relay nodes RN to the target donor evolved node B DeNB by the aid of the transmission layer care-of addresses. The method and the equipment in an embodiment of the invention have the advantages that the relay nodes RN inform the serving gateways S-GW corresponding to the user equipment UE of the transmission layer care-of addresses which are distributed to the relay nodes RN by the target donor evolved node B DeNB, so that the serving gateways S-GW corresponding to the user equipment UE can directly transmit the data to the target donor evolved node B DeNB, the data can be prevented from being transmitted through P-GW (data packet networks gateway) (RN)/S-GW (RN) in data transmission procedures, the UE data packet transmission delay can be shortened, transmission load on a network can be reduced, return link resources between the P-GW (RN)/S-GW (RN) and the target donor evolved node B DeNB can be saved, and the user experience can be improved.

A video game program includes a terminology storing function, a first running commentary function, a running commentary interrupting function, a second running commentary function, a running commentary returning function, and a running commentary continuing function. In the video game implemented with this program, if specific events occur while the video game is in progress and the play-by-play or commentary is interrupted, the system returns from the play-by-play or commentary related to the specific events to the interrupted play-by-play or commentary, after the play-by-play or commentary has been provided for the specific events, and the interrupted play-by-play or commentary is continued.

A method for transreceiving data disclosed in the present invention is a method for a terminal transreceiving between a first base station supporting a first radio access technology (RAT) and a second base station supporting a second RAT in a radio access system supporting Multi-RAT, and comprises the following steps: receiving access information for the second base station from the first base station; accessing the second base station based on access information of the second base station; transmitting to the first base station command information including an address on the second RAT, which is used for accessing the second base station; and transreceiving data having a first flow ID from the first base station through the first RAT, and transreceiving data having a second flow ID from the second base station through the second RAT.