45results about How to "Stable throughput" patented technology

Embodiments of the invention disclose a data transmitting method, a related device and a related system. The method comprises: a network device transmits resource location information of a first reference signal and a physical channel to a terminal; a first time-frequency resource mapped by and corresponding to the first reference signal is overlapped with a second time-frequency resource corresponding to the physical channel, wherein the overlapped resource is not used for physical channel transmission, and a third time-frequency resource of the second time-frequency resource except for the overlapped resource is used for physical channel transmission, or the overlapped resource is used for transmitting a second reference signal, or an overlapped region is used for transmitting the secondreference signal, the terminal does not transmit the first reference signal, and the second reference signal is orthogonal to the first reference signal; and the network device receives the physicalchannel and the second reference signal transmitted by the terminal. By using the embodiments of the invention, multiplexing PUSCH and SRS in the time-frequency resources for uplink transmission may be implemented, and the influence of SRS capacity expansion to data uplink throughput may be reduced.

The invention discloses an optimized node access method based on a self-adaptive backoff window and a backoff speed in a mobile Ad hoc network, comprising the steps of: in a frame of the traditional IEEE (Institute of Electrical and Electronics Engineers) 802.11DCF access protocol binary backoff algorithm, computing the optimal initial backoff window according to real-time node density, and setting a reducing speed for the backoff time according to real-time channel occupying state, thereby simultaneously realizing the self-adaptive update of the backoff window and the self-adaptive update of the node access channel speed. In the Ad hoc network scene in which the nodes are in frequent activities, according to the optimized node access method based on the self-adaptive backoff window and the backoff speed, the network throughput and the average time delay are increased to the greater extent, and the package loss is reduced.

The invention discloses an underground automatic steady-flow type cyclone separator, which can strength applicability, to a liquid inlet amount unsteady condition, of cyclone separating equipment. Theunderground automatic steady-flow type cyclone separator is characterized in that an inlet liquid processing module and an inverted cone structure are arranged in a variable-diameter separating tube,wherein a plurality of through circular holes are formed in a liquid inlet of the variable-diameter separating tube; the through circular holes are distributed along the periphery of the variable-diameter separating tube; the inlet liquid processing module comprises a large control spring, a static connecting rod spiral runner, a dynamic spiral runner, a step conical disc, a blocking pressure disc and a locking bolt; a blocking slot is formed inside the variable-diameter separating tube for fixing and positioning the static connecting rod spiral runner; the large control spring, the static connecting rod spiral runner and the dynamic spiral runner are assembled together through a lower blocking groove and an upper blocking groove; the inverted cone structure comprises a multi-section-diameter top cone, a rail type inverted cone, a sealing ring and a small control spring; the step conical disc is fixed to the static connecting rod spiral runner through threaded connection; the blockingpressure disc and the step conical disc are fastened through the locking bolt; and the inverted cone structure and the inverted cone fastening base are connected together through threads.

A video processing apparatus and methodology are implemented as a combination of a processor and a video decoding hardware block to decode video data by performing piecewise processing of overlap smoothing and in-loop deblocking in a macroblock-based fashion. With this approach, a smaller on-board memory may be used for the in-loop filtering operations of the video decoding hardware block. By pipelining the piecewise processing operations, latency in the filtering operations is hidden and the filtering output is smoothed, thereby avoiding the need for bursts of fetching and storing of blocks.

User cooperation in wireless networks implemented on the Network Protocol layer level attains a higher stable throughput and improved transmission delay. The cooperation is designed between a set of source user nodes transmitting to a common destination, where users with channels providing a higher successful delivery probability, in addition to their own traffic, relay packets of other source users whose transmissions to the destination fails. Each source user node is provided with an ample queue buffer having capacity to accumulate packets inadvertently received from other users in the system in addition to its own packets. Ranking mechanism facilitates in determining the “quality” of wireless channels, and the Acknowledgement mechanism facilitates in coordination of the transmissions in the system. The nodes exchange information on the queues status, and decision is made by a scheduling controller on the priority of transmission.

The invention discloses a method of multirate self-adaptation back-off of a wireless sensor network. The method particularly comprises that a node is started and a radio frequency module is arranged to work at maximum transmitting power; the node sends broadcast data packets at different speeds, and receives the response data packet of adjacent nodes; the node measures and records direct communicating time with other nodes at different speeds, and sends the time information to the adjacent nodes; the node counts the received response data packets, and confirms a degree number (the number of the adjacent nodes); the node receives the data packets containing the direct communicating time among the nodes sent by the adjacent nodes, and confirms a connection set (the connecting set of a node is a set formed by the adjacent nodes, and the direct communicating time between the node and the adjacent nodes is less than the indirect communicating time between the node and the adjacent nodes.); the node confirms an optimal back-off factor according to the relation of the degree number and the connection set; the node confirms self-adaptation coefficient reflecting network congestion conditions; and the node monitors the data sending conditions on a channel, carries out real-time adjustment according to the size of a contention window to enable the contention window of the node to reasonably reflect the contention conditions of the channel. The method of the multirate self-adaptation back-off of the wireless sensor network is suitable for the field of wireless sensor networks, a physical layer provides multirate abilities, the problems that data collision is increased and a contention window value is always large due to multirate transmission are solved, network throughput can be improved remarkably, and transmission delay can be reduced.

The invention discloses a multi-user MIMO system user scheduling method based on a L2-Hausdorff distance. The method comprises the following steps of an initialization portion: in an overload MIMO system, supposing that each channel is stable in a scheduling time slot, initializing an alternative user set and a scheduling set, and calculating a norm of each user channel; selecting a first user which is defined in the description, at this time, updating two sets, and using an irrigation power distribution method to calculate a system throughput of this time; a circulation iteration portion: using a greedy algorithm to carry out circulation iteration from a second user till that K users are selected from K<^> users and selecting a needed user set S, wherein the K is an upper limit of the users accommodated by the system; and a circulation termination portion: returning to the selected user set S and calculating a throughput C of the MIMO system at this time. In the invention, under the condition that throughput performance is maintained, complexity can be reduced, system time delay is shortened and so on.

The invention provides a worst response time-based hybrid key system task schedulability analysis method, which comprises the following steps of: firstly, providing a hybrid double-security key (DM) task model, and redefining system behaviors; and giving a worst response time derivation process of the mixed key task and a task set schedulability theorem in combination with the task period and priority change during system safety key level conversion. And finally, example comparative analysis shows that the method is effective. When the security key level is improved, the worst response time analysis method provided by the invention can provide better service for the LC task on the premise of ensuring the schedulability of the HC task; the analysis process is more simplified, the task average response time is shorter, the CUP resource utilization rate is higher, and higher and more stable system throughput can be kept.

A signal detection method for a MIMO-OFDM wireless communication system includes obtaining a channel matrix of each subcarrier for each MIMO-OFDM data packet; receiving a reception vector of each subcarrier; performing MIMO detection for a first OFDM symbol and channel matrix preprocessing to generate a global dynamic K-value table; performing MIMO detection for each subsequent OFDM symbol, the MIMO detection includes: performing the following steps for each subcarrier of a current OFDM symbol: transforming the reception vector of the current subcarrier into a LR search domain; and obtaining a LR domain candidate transmission vector of the current subcarrier, a K-value applied to each search layer of the current subcarrier during the K-best search is a global dynamic K-value in the global dynamic K-value table corresponding to the search layer.

The embodiment of the invention provides a throughput control method and device in system test and electronic equipment. The method comprises the steps: determining an expected step length for executing each request sending action according to the expected throughput of a system, and calculating the random duration based on the time slice length of a central processing unit and an adjustment parameter; obtaining the execution duration of the current request sending action; subtracting the sum of the random duration and the execution duration from the expected step length to obtain the hang-uptime before the next request sending action is executed; and executing the next request sending action when the hang-up time is up, so that the actual throughput of the system in the test process is the same as the expected throughput. According to the embodiment of the invention, the press machine in the system test can stably send out the specified quantity request in unit time, so that the testof the system under the expected throughput is realized.

The invention provides a fresh milk ceramic membrane microfiltration treatment system. The fresh milk ceramic membrane microfiltration treatment system comprises: a balance tank for storing milk; a power module for conveying milk in the system; a ceramic membrane module for carrying out ceramic membrane microfiltration on milk by utilizing a ceramic membrane; a transmembrane pressure difference control module for controlling the concentration side pressure and the permeation side pressure of the ceramic membrane; and a temperature control module for regulating the temperature in the fresh milkceramic membrane microfiltration treatment system.

A method of operating a radiotherapy system, comprising: receiving a treatment plan to be carried out using the radiotherapy system; detecting if there is a fault in a component of the radiotherapy system; determining whether the component is needed for delivery of the treatment plan; and if the component is not needed for delivery of the treatment plan, allowing the radiotherapy system to execute the treatment plan.

A fixed quantity supply equipment for inflators is combined with a heat-treatment equipment for inflators. A bottom portion 22 of an inflator accommodating chamber 20 at a predetermined position is opened by an opening / closing means 30 utilizing pneumatics to cause inflators 40 inside the inflator accommodating chamber to fall naturally. Thereafter, the bottom portion 22 is closed, the bottom portion 22 of the next inflator accommodating chamber 20 is opened to cause inflators 40 inside the same to fall naturally. These actions are repeated to supply the inflators 40 in a constant number.

The invention discloses a throughput control method, device, equipment and storage medium. The method includes: obtaining the current log sending start and end time of the press target thread in the current sending cycle, determining the current log sending time according to the current log sending start and ending time; according to the current log sending time, combined with the cumulative timeout value of the previous sending cycle , determine the current timeout condition of the current sending cycle; determine the next log sending time of the next sending cycle according to the current timeout situation, and control the target thread to send the next application log at the next log sending time . The invention adjusts the actual sleep duration of the partial sending cycle by setting the accumulated timeout variable to record the accumulated sending timeout time before the current sending cycle, realizes the stable maintenance of the throughput of the press in the test system within a relatively wide time requirement, and solves the problem of flow playback An issue where the throughput of a press cannot be stably controlled due to differences in application log sizes.

The invention relates to a method based on multi-channel medium access control protocol in an ad hoc network, which is applicable to temporary mobile ad hoc network applications with the requirement of transmitting a large amount of data, as long as each device has a Wi-Fi (wireless-fidelity) network card, the method can be realized. The designed multi-channel medium access control protocol utilizes three non-overlapped physical channels on 2.4GHz frequency band for simultaneously performing data transmission, network time is planned to periodic beacon frame intervals as a whole, and each period is further subdivided to three sub-intervals which are synchronous control interval, multi-channel data transmission interval and beacon period end interval respectively. The synchronous control interval is used for transceiving beacon frames and reserving a channel, an internal node of the multi-channel data transmission interval is switched to the reserved channel for performing data transmission, and the internal node of the beacon period end interval finally stops receiving data of the upper layer and is further switched to a common channel. Practical tests and result analysis show that, compared with the ad hoc network of 802.11 protocol, the multi-channel ad hoc network based on the method can significantly improve the throughput of the network.

The invention provides spatial network on-demand access system architecture. By using the architecture provided by the invention, the defects that a traditional access system is slow in signal capturespeed, poor in hardware expansibility and high in coupling between software can be solved. The spatial network on-demand access system architecture is implemented via the technical scheme as follows:a multi-beam former performs beam forming on an input array signal according to azimuth information issued by a master monitoring computer, Doppler prior information is acquired via satellite orbit information, digital signals formed by the output Doppler information after spatial filtering are enabled to form into a TCP / IP data packet to be transmitted to a TCP / IP route switching unit, and the TCP / IP data packet is forwarded to a specified receiver unit; the receiver unit performs de-framing, synchronization, demodulation and decoding on a UDP data packet in combination with the Doppler information issued by the master monitoring computer, and forwards the decoded data packet to a frame formatter of a slave monitoring computer to extract data in the TCP / IP data packet, and the data is transferred to a system management and scheduling unit after framing to be distributed to a terminal user putting forward a task application.

The invention discloses a method, device and system for field-oriented mobile ad hoc network information return transmission. The device is made up of a short distance communication module and a long distance communication module; the system is made up of the device, a data collection end device and a cloud database; ) are randomly aggregated to form a local self-organizing network, and at the same time solve the broadcast communication collision problem. Secondly, different backhaul strategies are adopted according to the business priority of the backhaul information to adapt to the delay requirements of different business priorities. Finally, through The self-organizing network uploads the information uploaded by unconnected members in the same network to the server through other members in the network, realizing multi-path return paths and effectively reducing the return delay of important messages.