59results about How to "Optimize overhead" patented technology

The invention discloses a wireless communication system, a network device and a terminal device. The network device is used for dynamically configuring the structure and the length of a current communication frame and transmitting frame structure configuration information in the current communication frame, and the terminal device is used for acquiring the structure and the length of the current communication frame according to the frame structure configuration information of the current communication frame. By dynamically configuring the frame structure, different service features and requirements of future rich and varied data services are considered, the flexible variable frame structure simultaneously meeting link adaptation and service requirements is designed for adaptive dynamic resource allocation, and the requirements of devices with different processing capacities can be met. By dynamically configuring the frame length, and control overhead, scheduling overhead and implementation complexity can be reduced.

The invention discloses a preprocessing-based branch dividing and cutting combined network optimizing and wave beam forming method and relates to the field of wireless communication. In order to fully exert the advantage of combined transmission in multi-point transmission, optimize power, reduce cost of return link and reduce the implementation complexity of the system, the method comprises the following steps: firstly modeling the problem of optimization of power consumption and return link cost reduction as a non-convex hybrid integer programming problem, converting non-convex constraint to convex constraint to obtain MI-SOCP problem, then relaxing binary integer constraint and converting to an SOCP problem; then integrating a BnB method and a tangent plane method to obtain a BnC method, preprocessing part of binary integer variables to determine values of the variables, integrating the binary integer constraint with the values of the variables so as to greatly reduce the implementation complexity, optimize power and the cost of the return link. The preprocessing-based branch dividing and cutting combined network optimizing and wave beam forming method is suitable for processing signals in the field of wireless networks.

The invention provides a reference signal determination method, a reference signal determination device, electronic equipment and a storage medium. The reference signal determination method comprisesthe steps of: acquiring configuration information; and determining whether a reference signal is valid according to the configuration information. The reference signal determination method determineswhether the reference signal is valid or not through using the configuration information, so that the system overhead is optimized. Besides, the UE only needs to wake up in front of the last synchronization signal block in front of the PO, realizes AGC adjustment, channel tracking and measurement through using the last synchronization signal block and the reference signal, and effectively shortensthe early wake-up time of the UE.

The invention discloses an on-chip memory debugging method and a device based on memory built-in self-test. The method comprises the following steps: 1) inputting a debugging control instruction, and starting memory debugging; 2) decoding the debugging control instruction, and selecting a target on-chip memory according to a decoding signal; 3) accessing the selected target on-chip memory according to a to-be-debugged reading area of the debugging control instruction under the control of a memory built-in self-test controller; and 4) caching the reading data of the target on-chip memory to a debugging data register, and taking the data of the debugging data register as debugging result data output of the debugging control instruction. The device comprises a memory built-in self-test controller, a debugging control register, a decoder, an input selector, an output selector and a debugging data register. The memory debugging data can be accessed on the basis of the memory built-in self-test, and the on-chip memory debugging method has the advantages of low hardware overhead, low area overhead and high cost performance.

The invention provides a key management method for multicast, which is the first to introduce bi-layer equipment control technology for assisting the key management for multicast. The technical scheme comprises a complete set of key management mechanisms for multicast, consisting of multicast authentication, bi-layer access control list ACL deployment and group key distribution and updating. The invention provides a multicast authentication method based on Session Initialization Protocol (SIP) for authenticating multicast rights of users, performs bi-layer ACL deployment on an access switch (AS) by Simple Network Management Protocol (SNMP) or Secure Sockets Layer (SSL) interface, thus realizing message filtering function of Multicast Listener Discovery (MLD) protocol. On the basis, the invention provides a key distributing and updating scheme and solves the problem of key updating in the traditional key management scheme when a member leaves by a bi-layer control mode, thus ensuring safety and efficiency in the process of the group key distribution and updating and having remarkable superiority in the aspects such as computational overhead, storage overhead, communication overhead and the like.

The invention discloses an intelligent substation SCD document rapid analysis method. The intelligent substation SCD document rapid analysis method comprises the steps that a SCD document is loaded, node data of the SCD document adopt a deep-analysis and shallow-copy method, and a tree structure object is established; the data extraction is conducted according to the tree structure object, and a global hash table is established; all node data in the SCD document are searched rapidly according to the mapping relation of the global hash table. According to the intelligent substation SCD document rapid analysis method, the memory overhead is reduced, the time consumption is lowered, and the searching efficiency is improved.

The invention relates to an object naming service (ONS) architecture with decentralized management-based electronic produce code (EPC) parsing method. The EPC parsing method comprises the following steps that: firstly, a URI Conversion unit reads a company prefix in an object code and determines a country code top level domain (ccTLD) area which the object code is located at; secondly, the URI Conversion unit carries out conversion on the object code, adds the ccTLD information, and constructs a complete domain name; thirdly, an ONS resolver unit receives the converted domain name and carries out parsing according to a normal DNS query flow until a name server of the domain name returns a corresponding naming authority pointer (NAPTR) record; and fourthly, a Local System unit accesses a corresponding an EPC information server (EPC IS) or EPC discovery server (EPC DS) according to the NAPTR record so as to obtain related information of the object. According to the invention, querying time delay and expenditure of the ONS can be optimized; and privacy protection of object information by all sovereign states and areas can be guaranteed.

The invention relates to a power communication hierarchical routing path determining method comprising the following steps: clustering low- and high-orbit satellites in a power communication network topology; when the source satellite node and the destination satellite node of a packet are in the same cluster, determining a final packet forwarding path from the source satellite node generating the packet to the destination satellite node receiving the packet for the intra-cluster packet based on an ant colony algorithm; and when the source satellite node and the destination satellite node of a packet are not in the same cluster, taking a path for transmitting the packet from the source satellite node to a high-orbit satellite, a packet forwarding path for an inter-cluster packet in the high-orbit satellite to reach a relay destination satellite node from a relay source satellite node and a path for transmitting the high-orbit satellite to the destination satellite node as the final packet forwarding path from the source satellite node generating the packet to the destination satellite node receiving the packet for the inter-cluster packet. The method can be used to jointly optimize the communication performance of the system, and is advantageous in communication.

The invention belongs to the technical field of equipment maintenance or management, and discloses an aircraft formation hierarchical network access management method and system. The management methodincludes the following steps: initializing aircraft formation network parameters; identifying aircraft node capability state information; defining node comprehensive property parameter indexes by using the node capability state information; constructing a whole network node capability visibility graph according to the comprehensive property parameter indexes; selecting a formation network accessinitiation node according to the consideration of the node capability visibility graph and the geographical location area; completing control information interaction between the network access initiation node and a main topology central control node according to the principle of minimum hop count and a sleep state multipath way-finding mode based on geographic location information; and carrying out information in a formation after the network access initiation node receives network access response so as to make the nodes update a local information field to finish the formation network access.According to the invention, maximum network access efficiency is obtained with lowest cost, the comprehensive performance of formation network access is improved, network communication QoS needs are guaranteed, and the task completion efficiency and quality are improved.

The invention discloses an unmanned equipment path planning method giving consideration to energy supply, and is applied in the field of unmanned equipment. The movement task of one piece of unmannedequipment is multiple target nods, and the target nodes exist in a scene with a plurality of energy supply stations. According to the invention, one task updating sliding window is built for the unmanned equipment, and a candidate energy supply node is added to a path planning topology. Moreover, the method reduces the path cost and calculation expenditure as much as possible under the condition that the movement path of the unmanned equipment meets an energy constraint condition through the sliding window and a path iteration calculation mode.

The invention discloses a method of picture resource loading in an imbedded system, which comprises: dividing picture resources into small pictures and large pictures according to pictures' resolution or system memory limit; in storing picture resources, storing small pictures data into a memory and storing large picture data into a file system; in loading picture resources, directly loading small picture data from the memory and loading large picture data from the file system. The invention accordingly provides a device for picture resources loading in an imbedded system. The invention realizes picture resources flexible loading and best optimizes picture resources visiting speed and memory cost.

The invention provides a scheduling method, a scheduler, a storage medium and a system, and belongs to the technical field of communication. The scheduling method comprises the steps: acquiring an incidence relation graph and data distribution information, wherein each node in the incidence relation graph refers to one piece of data, and each directed edge is used for representing an operation request for calculating according to the data referenced by a source node to obtain the data referenced by a target node; according to a preset node sorting strategy, sequentially positioning the operation requests corresponding to the traversed nodes to any server where the data indicated by the traversed nodes are located; and sequentially scheduling at least one job request represented by at leastone directed edge to the positioned server. For the scheduling method, the incidence relation graph is used for representing the incidence relation between the data and the corresponding relation between the operation requests and the data, and the data distribution information is used for representing the data distribution condition, so that cross-node data transmission can be reduced, the operation execution time of the whole operation request is shortened, and the calculation efficiency is improved, and the system performance is improved.

The invention discloses a high-speed radix-16 Montgomery modular multiplier VLSI (very large scale integrated circuit) which comprises N-numbered MMCell arithmetic elements, an FIFO (first in first out) storage unit and an alternative data selection unit. The high-speed radix-16 Montgomery modular multiplier VLSI overcomes the defects of low average behavior, low clock frequency, large hardware expenditure, poor practicability and the like in the prior art, thus achieving the advantages of high average behavior, high clock frequency, small hardware expenditure and good practicability.

The invention discloses a dynamic k step user position updating method facing a low earth orbit satellite system. A user terminal is turned on for registration operation, and is used for registration in a VLR of a gateway station, to which a current position area belongs. The VLR is used to allocate a temporary user identity number to a user randomly, and an identity identification number of a satellite is determined, and an identity identification number of a satellite wave beam is determined, until the current VLR is used to transmit the information of the user registration to a home location register. The home location register is used for the registration of the user initial information after the receiving of the information, and the user identity number UID and the visitor location register identity number VID of the user are written. The dynamic k step user position updating method is advantageous in that problems of low earth orbit satellite systems such as complicated management and large position updating costs are solved; and at the same time, the value of K is changed dynamically by aiming at the users having different priorities according to the speeds of the different users and characteristics like frequent handover, and therefore the position updating costs are further optimized, the QoS requirements of the different users are considered, and the total QoS is improved.

Methods, systems, and apparatus, including computer programs encoded on a computer storage device, for: receiving messages from a plurality of publishers; assigning each of the messages to one of a plurality of channels, wherein each channel comprises an ordered plurality of messages; storing messages of each of the channels in respective storage buffers according to the order, wherein each storage buffer comprises a respective time-to-live of a first time duration; for a particular channel, retrieving messages of the particular channel from respective storage buffers; storing the retrieved messages of the particular channel in a delivery buffer, the delivery buffer comprising data blocks, wherein each data block comprises a respective time-to-live of a second time duration; and providingthe messages stored in the delivery buffer to a plurality of subscribers of the particular channel.

The invention discloses a distributed deep learning multi-step delay updating method based on communication operation sparsification, and the method comprises the specific steps: warm-up training: carrying out the training of a certain number of iterations of a deep learning model through employing a synchronous random gradient descent method before multi-step delay iteration training; in the switching stage, switching a synchronous stochastic gradient descent updating method into a multi-step delay training mode, wherein the local parameter updating operation adopts a local updating method based on global gradient, so as to relieve weight delay and ensure the convergence precision of the model; and the multi-step delay training specifically comprising three steps of global parameter updating, local parameter updating and communication operation sparsification. By adopting communication operation sparsification, network congestion is relieved, synchronization expenditure is eliminated,communication expenditure in the distributed training process is reduced to a great extent, and communication expenditure in the training process is optimized.

The embodiment of the invention discloses a big data user demand analysis method based on wisdom education and a server. When the method is applied, bidirectional session description mining and description link saliency mining are carried out, so that the influence and disturbance of redundant multimedia teaching interaction logs corresponding to some interference type online sessions on project mining can be avoided to a certain extent, and the timeliness, pertinence and reliability of project potential course demand mining are improved. Besides, the significance determination of the description link of the redundant multimedia teaching interaction log corresponding to the interference type online session can be reduced, so that the resource overhead occupied by project potential course demand mining is adaptively improved, and the project demand mining efficiency is improved. In this way, classroom description mining can be timely and reliably achieved in an intelligent education scene, and therefore it is ensured that different remote education clients can receive issued teaching resource projects in time during teaching service interaction.

A disable list processing method and device, storage medium, terminal, base station, the method includes: receiving indication information sent by network; deleting at least a portion of the contentsrecorded in the disable list based on the indication information. The scheme provided by the invention can better optimize the signaling cost and effectively reduce the power consumption of the user equipment.

A multi-SIM UE may perform network SIB acquisition for each network subscription. However, if the multi-SIM UE employs subscriptions for the same network these operations may be performed redundantly. By identifying that the UE is employing multiple subscriptions, the UE and network can perform a single SIB acquisition for multiple subscriptions, which reduces power consumption and optimize network signaling overhead. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE configured to determine that the UE is associated with a plurality of network subscriptions, the plurality of network subscriptions being associated with a network, select a network subscription from the plurality of network subscriptions, perform a random-access procedure using the network subscription, receive system information broadcast in response to the random-access procedure, and configure the plurality of network subscriptions at the UE based on the system information.

The invention discloses a message processing method and device. The method comprises the steps of obtaining to-be-sent messages; performing reliability assessment on the to-be-sent messages, setting identifiers for the to-be-sent messages according to reliability assessment results, generating corresponding relationships containing the identifiers and the reliability assessment results, and generating resource files based on the corresponding relationships; when the messages need to be sent, performing matching with the messages based on the resource files, and judging whether persistent processing needs to be performed or not; if a judgment result is that the persistent processing does not need to be performed, performing non-persistent processing on the messages; and executing corresponding operations according to matching results. Therefore, whether the messages are subjected to the persistent processing or not can be determined as needed, and two aspects of weighing system overhead and ensuring message reliability are optimized to achieve optimal configuration.

The invention discloses a transparent real-time flow compression method among data centers. The method comprises the following steps of: carrying out stream-based fine grit compression on a data stream, namely, compressing the data stream based on the compression strategy corresponding to stream partitioning according to the port attribute of the data stream, so as to obtain a plurality of compression data blocks; and according to the stream type of the plurality of compression data blocks, transmitting the compression data blocks of a plurality of stream types through different channels, wherein the compression data blocks are transmitted by utilizing a batch processing strategy and a partial buffer pool method. The redundant information of specific services is compressed, the wideband utilization rate of transmission links among the data centers is sufficiently used, the system expense is optimized, the flexibility is good, the efficiency is high, and the performance advantage is remarkable. The invention further discloses a transparent real-time flow compression system among data centers.

The invention provides an opportunistic social network effective data transmission method based on node socialization, and the method comprises the steps: dividing nodes in a network into a pluralityof different communities, removing some low-efficiency nodes according to the attributes of an optimal relay node, and carrying out the community reduction; measuring the availability of the node by proposing concepts of sending trust, receiving trust, residual cache and activity index; in an opportunistic social network, if the nodes simultaneously satisfy these characteristics, determining a fact that the nodes are more likely to be optimal relay nodes. And the continuity, the stability and the high efficiency of the data transmission process can be maintained through the reduced high-efficiency community transmission data packet. Simulation results show that the packet delivery rate of the ETNS is % higher than that of an epidemic algorithm by 13%, and meanwhile, the ETNS has relativelylow transmission delay and routing overhead.