46results about How to "Reduce bandwidth waste" patented technology

The present invention relates generally to communication networks and more specifically to methods and devices for data communication over a communication network. A method according to the invention comprises, at a transmitting node: obtaining a plurality of frames including first-type frames associated with an acknowledgment policy requiring acknowledgment and second-type frames associated with an acknowledgment policy requiring no acknowledgment; aggregating the frames of the obtained plurality of frames into an aggregated frame including at least one leading frame of second type and frames subsequent thereto, in an order depending on their associated acknowledgment policies; sending the aggregated frame to a receiving node; and sending an acknowledgment request frame to the receiving node to request it to acknowledge receipt of only subsequent frames of the aggregated frame. Such data communication scheme is liable to reduce bandwidth waste and head-of-line blocking and thus latency, compared to known scheme.

An apparatus for authentication of fragments using hash trees may include a processor. The processor may be configured to provide one or more data fragments and a hash tree representing the one or more fragments, send at least one first fragment accompanied by any nodes of the hash tree necessary to authenticate the one or more first sent fragments, and send one or more subsequent fragments accompanied by only some, but not all, of the nodes of the hash tree necessary to authenticate the one or more subsequent fragments with the other nodes that are not sent but are necessary for authentication having been previously sent in conjunction with a prior fragment.

The present invention relates generally to network quality estimation using HTTP/2 push feature. When network quality estimation is required, a client web application requests a server to enter a probing mode. During the probing mode, the server pushes useful data to the application for the latter to perform the estimation. This avoids wasting bandwidth since the useful data are likely to be used by the application. Furthermore, during the probing mode, the server notifies the application of the push start and the push end of each pushed data. This is one using a web socket established with the application. This makes it possible to overcome the limitations of the application in accessing HTTP/2 features of a client browser. Based on the notifications, the application is able to perform accurate estimations.

In a wireless local area network (WLAN), the present invention provides a system and method for identifying traffic suffering from bad link quality and dynamically adjusting channel access to restrict the effect of this bad link quality. The dynamic adjustment to channel access is accomplished by lowering or raising the limit on the number of packets that can be transmitted between an AP and the wireless station over the a link as determined by the link quality. The link quality is determined by tracking the number of successive packet transmission successes and errors.

A wireless network system and a wireless access point (AP) device and a wireless terminal device thereof are provided. The wireless network system includes at least a wireless AP device and at least a wireless terminal device. Each wireless AP device broadcasts a beacon including a load state content of the wireless AP device. Each wireless terminal device receives beacons of all wireless AP devices, and ranks load states of all wireless AP devices in a load list according to at least CPU utilization rates in the load state contents of all wireless AP devices respectively. When a wireless terminal device intends to establish a connection with one of the wireless AP devices, the wireless terminal devices searches through the load list to select a wireless AP device being in a low load state, and transmits a connection request message to the selected wireless AP device.

The invention discloses an SSD controller based on native PCIe interface and a control method of the SSD controller. The SSD controller is characterized by comprising the following steps that when a CPU writes data to an SSD, a DMA controller guides PCIe data flows in a PCIe terminal into a DDR controller and then buffers the PCIe data flows into a DDR, meanwhile, the CPU transmits description information of the data flows to a NandFlash controller through the DMA controller, an address control module judges the effectiveness of data after receiving the description information, the data flows are verified through an ECC module from the DDR, the data flows are converted into data flows of an ONFI interface time sequence through an LLD drive module and written into the SSD. Intermediate protocol conversion does not exist in the SSD controller of the native PCIe interface, expenditure is small, and bandwidth waste is few; parallel processing can be performed, and read-write speed of the SSD is high; no mechanical structure exists, the service life is long, the capacity for resisting severe environment is high, and industrial-grade storage requirements are met; the structure is simple, capacity configuration is flexible, and the SSD controller is not limited to upgrading of NandFlash chips.

The invention discloses a method for switching a terminal and a corresponding communication network. The communication network comprises a wireless side network element, an access gateway which is connected between the wireless network element and a packet data network, a mobility management node and an identity position register. In the process of switching the terminal, when a target access gateway different from the original access gateway is determined, the target access gateway allocates the identifier of a new position for the terminal and saves the mapping information of the identifier of the identity of the terminal and the identifier of the new position; a target mobility management node or the target access gateway initiates registration and updates the identifier of the position of the terminal in the identity position register to which the terminal belongs; and the terminal is switched from the original wireless side network element to a target wireless side network element, and is connected to the packet data network by the target wireless side network element and the target access gateway, so that data messages is encapsulated and forwarded between the terminal and a communication opposite end. Through the invention, the route detours of data packets can be reduced, transmission delay and bandwidth waste can be lowered.

Disclosed is a device, a system and a method for reducing repeated downloading of images through identification codes, wherein, a sending end is used to firstly transmit a transmission identification code of the corresponding image to a receiving end, a program for downloading the image is terminated when the receiving end judges that the received transmission identification code is recorded in a configuration file, and the image is saved from the sending end when the receiving end judges that the received transmission identification code is not recorded in the configuration file, thereby achieving the technical effect of reducing bandwidth waste.

The embodiments of present invention disclose a method and a device for making uplink standby, including: configuring more than one uplink for an Internet Group Management Protocol (IGMP) proxy device, and choosing one of the more than one uplink as a primary uplink; the IGMP proxy device replicating a multicast packet received over the primary uplink and sending the multicast packet replicated over a downlink to a multicast host. In the method provided by the embodiments of the present invention, only the primary uplink is used, which reduces the link bandwidth waste of the multicast host and improves the multicast data transmission efficiency. Flexible methods are adopted for checking the availability of the primary uplink so that the IGMP proxy device may detect in real time whether the primary uplink is available and choose a new primary uplink in time to guarantee the normal multicast communication.

The invention discloses a network multimedia transmission service-oriented client active load balancing method, which is characterized in actively adjusting the number of the nodes of the connecting proxy service according to the nodes of the proxy service connected with the client and the transmission speed of the nodes of the proxy service. When the transmission speed exceeds a certain threshold value and causes the time consuming of the bandwidth, the transmission nodes are actively reduced. The active load balancing method can be the supplement of the lagging type load balancing method or the prediction type load balancing method of the server end, enhancing the response of the system to the network transmission and improving the service quality of the multimedia network transmission.

A processor Cache write-in invalidation processing method based on memory access history learning includes the following procedures: (1) Cache invalidation preprocessing procedure; (2) Cache write-allocation strategy setting procedure includes that: the immediate write-allocation or delay write-allocation strategy of each group is set; (3) the group belonging to the immediate write-allocation immediately accesses the Cache block corresponding to the memory and reads the missing data of the group back, and integrates the missing data with the write-in data to form complete Cache block data, and writes the complete Cache block data into the corresponding Cache block; the group belonging to the delay write-allocation collects the write-in data of Cache write-in invalidation operation allocated in the group, and writes the write-in data directly into the corresponding Cache block when the write-in data of a certain group is fully collected in the whole Cache block. The invention can reduce great unnecessary operations of reading Cache block from the memory during the processing process of the Cache write-in invalidation, accordingly reduces the bandwidth waste of the process and further improves the performance of the application program.

The invention discloses a remote management implementation method, a remote management implementation system, a general communication channel (GCC) overhead processing method and a GCC overhead processing device. The remote management implementation method comprises the following steps of processing a GCC overhead; establishing a remote management channel; performing remote management through the established remote management channel. According to the remote management implementation method, the remote management implementation system, the GCC overhead processing method and the GCC overhead processing device, by using the remote management channel established by a GCC overhead channel, an additional bandwidth special for remote management is eliminated, so that the cost is reduced, the hardware design is simplified, and the management difficulty and the bandwidth waste are reduced.

The invention relates to an abnormal flux control system based on multistage accumulation, wherein it comprises following subsystems: abnormal flux recognize subsystem for sampling data and accumulating address; abnormal flux classifying rule automatic generating subsystem for designing accumulation mode, accumulating second mode, packing class and data management; abnormal flux match and reject method executing subsystem for based on the result of second mode accumulation setting different priorities on the speed limit of each accumulation, and using quick method to limit the abnormal accumulation. The invention also provides a relative control method. The invention process first address accumulation and second mode accumulation analysis on the data, to reduce the bandwidth waste on transmission attach flux, to improve utilization of route and bandwidth utilization.

The invention discloses a CDMA (code division multiple access) communication method. The invention relates to a CDMA communication method which is designed for solving the problem that a CP (cyclic prefix) is introduced in an OFDM (orthogonal frequency division multiplexing) system in the current communication method, thereby wasting bands. The method is traditionally implemented based on a BS-CDMA (block spread-code division multiple access) system; a transmitting method for the transmitting ends of a downlink and an uplink comprises the step of sequentially carrying out spectrum spreading, serial-parallel conversion, multiplication with M paths of sub-carriers, parallel-serial conversion, digital-to-analog conversion, carrier modulation and band-pass filtering on data to be transmitted by a user so as to transmit the signals subjected to band-pass filtering to a channel; and a receiving method for the receiving ends of the downlink and the uplink comprises the steps of sequentially carrying out band-pass filtering, demodulation, low-pass filtering, analog-to-digital conversion, serial-parallel conversion, multiplication with M paths of sub-carriers, low-pass filtering, parallel-serial conversion, despreading, and integration and judgment in a bit time Tb on the signals transmitted by a receiving channel of a receiving antenna, and outputting the signals. The method disclosed by the invention is suitable for carrying out wireless communication.

The embodiment of the invention relates to a method and a device for adjusting bandwidth of an interface of a mobile base station. The method for adjusting the bandwidth of the interface of the mobile base station comprises the following steps: acquiring a motion state of a traffic tool for bearing the mobile base station; and adjusting the bandwidth of an external interface of the mobile base station according to the motion state of the traffic tool. Due to the adoption of the method and the device of the embodiment of the invention, the bandwidth of the external interface of the mobile base station is reasonably adjusted according to the motion state of the traffic tool for bearing the mobile base station; and the method and the device can reduce bandwidth waste of the external interface of the mobile base station, improve the utilization rate of the bandwidth, and save transportation cost.

The invention discloses a method for finding operating VRPP network equipment in a directly connected network segment, and is applicable to a router system comprising an access switch and at least one VRRP group. The method comprises the following steps: the access switch receives and intercepts a VRRP notification message sent by a router of each VRRP group, and confirms members of each VRRO router group and a connected port according to a port which receives the notification message and VRRP ID in the notification message so that the access switch transmits messages between members which belong to the same VRRP router group by the port. The method help avoid broadcasting the VRRP messages of the same group to other routers, or PC (host computer) which is connected to the switch does not join in the VRRP network equipment, thus reducing bandwidth waste.

The invention relates to an electric power tower instability monitoring method and system based on information fusion. The monitoring method comprises the steps of collecting real-time position data and real-time inclination angle data of an electric power tower in real time; correcting the real-time position data and the real-time inclination angle data to obtain accurate position data and accurate inclination angle data; after the accurate position data and the accurate inclination angle data are encrypted, uploading ciphertext data to a background monitoring client; analyzing the ciphertextdata by the background monitoring client, extracting the accurate position data and the accurate inclination angle data, and calculating inclination data, reverse breaking data, settlement data and horizontal displacement data of the power tower; and according to the inclination data, the reverse breaking data, the settlement data and the horizontal displacement data of the electric power tower,calculating an instability index of the electric power tower, comparing the instability index with a preset threshold value, and when the instability index is greater than the threshold value, sendingearly warning information to related workers by the background monitoring client.

An embodiment of the invention provides an Enriched URL (uniform resource locator) recognition method and apparatus. The method comprises the steps of: extracting one or more URLs; selecting candidate URLs from the one or more URLs; correlating each candidate URL with each anchor text; calculating the similarity of the anchor texts; and identifying an enriched URL from the candidate URLs according to the similarity. According to the embodiment of the invention, a search engine can be prevented from grabbing spam and repeated web pages during web page grabbing, so that the bandwidth waste during grabbing is greatly reduced; as the grabbing amount is reduced, the burden of the search engine is reduced; and meanwhile, the search engine can additionally grab other good-quality web pages, so that the coverage rate of the search engine during web page including is increased and the timeliness of the search engine during web page including is improved.

The embodiment of the invention relates to the technical field of video processing, and discloses a live video processing method. The method comprises the following steps of: obtaining live source video streams of various visual angles; obtaining a to-be-downloaded video slice of each view angle according to the live broadcast source video stream of each view angle; receiving a live broadcast watching request of a playing device, and the live broadcast watching request comprising a first live broadcast main view angle; and in response to the live broadcast watching request, sending the to-be-downloaded video slice of the first live broadcast main view angle and the to-be-downloaded video slice of at least one side view angle adjacent to the first live broadcast main view angle to a playingdevice. According to the live video processing method and device and the storage medium provided by the embodiment of the invention, bandwidth waste during panoramic video transmission can be reduced.

The invention provides a framework and a method of the VOD system of an IPv6 network supported by handheld communication equipment, mainly overcoming the defects of image quality and data transmission that exist in the prior art. Image quality and transmission functional modules are respectively and additionally arranged on the handheld communication equipment and a network server, an answering solving agreement is provided and implementing detailed rules are provided for specific implementation, thereby improving the unobstructed degree of a data flow, reducing unnecessary transmission bandwidth and saving expenses and costs. Meanwhile, an idea of supporting clients based on classification and a method for utilizing existing resources are provided to promote supporting efficiency.

The invention discloses a reinforcement learning-based inter-data center multi-target disaster backup method and a system. The method comprises the steps of expanding an inter-data center network to obtain a time expansion network; acquiring to-be-backed-up data in the time expansion network; inputting the to-be-backed-up data into a backup route selection model to obtain an optimal backup route scheme; transmitting and backing up the to-be-backed-up data in the time expansion network according to the optimal backup routing scheme; wherein the backup route selection model comprises a fitness function of each link in a multicast tree in the time expansion network to the multicast tree and a congestion factor function of each link, and solving to obtain an optimal backup route scheme by taking minimization of backup cost and link load balance as a target. When disaster backup is carried out, factors in two aspects of backup cost and load balancing are fully considered, a backup routing scheme which is relatively good in the two aspects of backup cost and load balancing at the same time is obtained through a backup routing selection model, and on the basis of reducing broadband waste,maximum link congestion is relieved.

The invention discloses a link construction method and device based on competition type MAC, and is applied to a wireless device. The method includes the following steps: when the right of access to a channel is obtained by competition, sending data frames located in a sending buffer zone, and judging whether the data frames are sent successfully; if the data frames are sent successfully, judging whether the number of the data frames that are sent is larger than a threshold value; if the number of the data frames is not larger than the threshold value, continuing to send data frames; and if the number of the data frames is larger than the threshold value, competing for the right of access to the channel again. The method provided by the invention introduces the threshold value which can be updated in real time according to the number of data frames to be sent which are retained in the sending buffer zone of a wireless device and conditions of a sending channel, so that sending bandwidth and receiving bandwidth of the wireless device are inconsistent and an asymmetric link is formed, in addition, sending bandwidth of wireless devices can be inconsistent, the right to use the channel tends to belong to the wireless device that needs to send a large number of data frames, and bandwidth waste brought by random back-off is reduced.