351results about How to "Save communication resources" patented technology

The embodiment of the invention provides a data transmission method and device, and belongs to the field of communication. Communication resources can be saved, and user experience can be improved. The data transmission method comprises the steps that whether the data amount of first data needing to be transmitted to terminal equipment at present is larger than or equal to a firs data amount threshold value; if the data amount of the first data is larger than or equal to the first data amount threshold value, state transition from RRC_IDEL to RRC_CONNECTED is conducted on the terminal equipment; if the data amount of the first data is smaller than the first data amount threshold value, state transition from RRC_IDEL to RRC_SDT is conducted on the terminal equipment. The data transmission method and device are used for enabling the terminal equipment to be transited to different RRC states according to the data amount of the transmission data between the terminal equipment and a base station.

The invention provides a downloading method, which relates to the related technical fields of Internet, peer-to-peer transmission, content division and the like. When a user is to download a data file or multimedia program contents from the Internet, a content provider or a content sharer defines different attributes for different segments in the same file according to the different attributes of specific program contents, classifies the segments, and provides and shares classification information for the other users. When the user downloads the contents from the Internet, the downloading user preferably selects a list of the segments meeting attribute requirements thereof according to the known classification information, preferably downloads and uses the segments, expands the downloading of the classification information of the segments according to needs thereof, and provides right control and management strategies corresponding to profiles of the segments.

The invention relates to the communication field, in particular to a Bluetooth device communication method. The Bluetooth device communication method includes the steps of receiving data request information sent by first application in a main Bluetooth device, wherein the data request information at least comprises device information, corresponding to data requests, of a first auxiliary Bluetooth device, judging whether a data connection channel corresponding to the first auxiliary Bluetooth device exists or not according to the device information, contained in the data requests, of the first auxiliary Bluetooth device and the corresponding relationship between the saved data connection channel and the auxiliary Bluetooth device, when it is judged that the data connection channel corresponding to the first auxiliary Bluetooth device exists, using the data connection channel to achieve data communication between the first application in the main Bluetooth device and the first auxiliary Bluetooth device, and when it is judged that the data connection channel corresponding to the first auxiliary Bluetooth device does not exist, building the data connection channel between the first application in the main Bluetooth device and the first auxiliary Bluetooth device, and saving the built corresponding relationship between the data connection channel and the first auxiliary Bluetooth device. According to the Bluetooth device communication method, efficiency of communication among Bluetooth devices can be effectively improved.

The invention discloses a method for indicating the downgoing resource. The method is used for saving the communication resources and dispatching the communication resources flexibly and comprises the following steps that: a progression base station sends a message for indicating the time-frequency resource distribution to user equipment, in the message, a bitmap of the distributed time-frequency resource before the distribution of the time-frequency resource is identified intensively; moreover, the time-frequency resource identified in the time-frequency resource indication of each user equipment is only the vacant time-frequency resource before the distribution of the time-frequency resource in this time; the user equipment analyzes the bitmap of the distributed time-frequency resource and the time-frequency resource indication from the received message and obtains the time-frequency resource distributed for the equipment according to the analyzed message. The invention also discloses the evolution base station, the user equipment and the communication system.

The invention discloses an electric vehicle ordered charging coordination control method suitable for a plurality of charging stations. Firstly, each charging station calculates a set charging requirement boundary curve of all electric vehicles in the charging station according to charging requirement information and battery information of all the electric vehicles in the station and sends the set charging requirement boundary curve to a control center; then the control center calculates the optimal charging load guide curve of each charging station according to the set charging requirement boundary curve of all the electric vehicles in the station, which is reported by the charging station, electricity price of a power grid and electric vehicle charging load constraint conditions of a system and issues the optimal charging load guide curves to the corresponding charging stations; and each charging station adopts a coordinative optimization charging algorithm to calculate the optimal charging strategy of each electric vehicle in the station, so that ordered charging coordination control among a plurality of charging stations is implemented. The control method depends on an optimization model simple to calculate, has high calculating efficiency and has low requirements on the hardware environment of a control system; and communication resources between each charging station and the control center are effectively saved.

The invention discloses a weak authentication and key agreement method based on a symmetrical password, comprising the following steps: 1) presetting a long-term shared secret key k between any two network node equipment A and B; 2) respectively arranging a clock on a node A and a node B, wherein, the error between each clock and standard time does not exceed T0 second; 3) internally installing an encryption algorithm E between the node A and the node B; and 4) building an authentication and session key between the node A and the node B by utilizing the encryption algorithm E and the long-term shared secret key k. The method of the invention has low energy-consumption computation and communication, rapid execution speed and high authentication efficiency, and is suitable for resource-restricted communication environments. As the invention uses a symmetric cryptographic algorithm DES or AES, the difficult degree that opponents capture authentication message to obtain the long-term shared key or a ciphertext is relative to the difficult degree of decoding the DES or AES algorithm, thus ensuring the safety of the ciphertext and the key.

The invention discloses an electric power Internet of Things access gateway based on a block chain, which is applied to a distributed system with characteristics of an electric power Internet of Things. The gateway is composed of a member authentication and authorization module, a block chain service module and a service editing module, and three functions of power Internet of Things terminal identity legality authentication, power Internet of Things terminal authentication certificate and access state storage, and power Internet of Things authentication parameter and protocol configuration are realized respectively. Based on the electric power Internet of Things gateway, the invention also provides an authentication method for electric power Internet of Things terminal access. By utilizing the characteristics of distributed consensus and tamper-proofing of the block chain technology, the authority authentication data is added into the block chain block, and the gateway solves the problem of data trust by inquiring the authentication information and providing the authentication result. The access authentication efficiency is improved, and system calculation and communication resources are saved.

The invention discloses a federated learning method, device and system. A federated server transmits an initial model to each client in a unified manner, and the client carries out the training of a model based on the local data of the client after receiving the initial model which is transmitted to each client by the federated server in a unified manner, and obtains an updated gradient; the client sends the updated gradient to the federated server; the federated server carries out aggregation processing on the updated gradients sent by the clients after receiving the updated gradients to obtain a global updated gradient, and carries out singular value decomposition on the global updated gradient; and the client receives the global updated gradient after singular value decomposition sent by the federated server, calculates the global updated gradient according to the global updated gradient after singular value decomposition, and continues to perform model training according to the global updated gradient. The objective is to solve at least one of the problems of high network transmission overhead and unsafe data in an existing federated learning system.

The invention discloses a method for tracking moving targets in wireless sensor networks. Monitoring areas are subjected to partition management, a management node is in charge of tracking tasks of an area, and position information of all nodes is not needed to be acquired by a base station; management nodes determine nodes needed to be awakened in the next sampling time period according to positions of main tracking nodes in the previous sampling time period. During each sampling time period, only a small part of nodes is in monitoring or moving states while most of the nodes remain dormant; ordinary nodes monitoring targets only need to send information to the management nodes, and information exchange is not needed; when the targets are lost, searching in one area is performed firstly, then whole network tracking is performed when the area searching fails. By the method for tracking moving targets in the wireless sensor networks, energy consumption of the nodes and communication times among the nodes are reduced, life circle of the networks is prolonged, and communication resources are saved.

The invention discloses a security data communication achieving method based on quantum key distribution. In traditional data communication based on quasi single-photon source quantum key distribution, a large number of quantum bits will be consumed in the data reconciliation process, and quantum key distribution efficiency is low. According to the security data communication achieving method based on quantum key distribution, a new quantum security communication model is built, the data reconciliation process is omitted, original key error codes are equivalent to channel error codes, and data secrecy transmission is achieved by exchanging the encryption and decryption sequence and the channel coding frequency. Dolay coding with the high error correcting capability is adopted for channel coding, original keys are used for encrypting and decrypting the coded data in a one-time pad mode, Dolay decoding is carried out on the decrypted data with error codes, and verification is carried out in an experiment system. Research results show that the quantum key distribution process is simplified, the key security is enhanced, computing and communication resources are saved, the key generating rate is improved, and a new idea is provided for quantum key distribution.

The invention discloses a connection management method. Via the method, when the state of a terminal is switched, it is not required to send a state switching signaling message to a core network of a base station, and instead, network side equipment determines that the terminal is in an idle state when there is no uplink and downlink data transmission and a first timer is overtime; and the realization complexity of a system is reduced, and time and communication resources are saved. The method comprises that when the terminal is in a power-saving state, the terminal determines whether the first timer exceeds a preset threshold, and if YES, the terminal is switched from the power-saving state to the idle state; the terminal does not sends a state change notification to the network side equipment, and according to change from the power-saving state to the idle state of the terminal, an update TAU message of a tracking position area is sent to the network side equipment; and the terminal receives downlink data from the network side equipment.

The invention discloses a configuring method of a stacking virtual local area network (SVLAN) of a distributed network device. By adopting a unique synchronization technology, the synchronous process of the SVLAN service based on an access control list (ACL) is realized both in the aspect of responding user instruction configuration and parameter analysis by a master control board and in the aspect of transmitting the configuration information from the master control board to each service board on the distributed network device, configuration release and function validation of each service board are realized, conventional configuration and processing flow are improved, and system resources are optimized, thereby improving operation efficiency and reliability of the system. The invention also discloses a configuring device of the SVLAN of the distributed network device. The invention has simple realization and strong practicability.

The invention relates to the technical field of network data communication, and discloses a server, a browser client side and a method for preloading webpages in visited websites. The server comprises a flow guide-drawing acquiring module, a current-node determining module, a correlative-node determining module, a correlative-node weight valve calculating module and a webpage pre-downloading module. The flow guide-drawing acquiring module is applicable to acquiring flow guide drawings of the visited websites; the current-node determining module is applicable to determining corresponding nodes of the visited websites in the flow guide drawings; the correlative-node determining module is applicable to seeking out correlative nodes after the corresponding nodes of the current visited websites in the flow guide drawings; the correlative-node weight valve calculating module is applicable to calculating visiting probability of the webpages corresponding to the correlative nodes, after the current visited webpages are visited, according to flow proportions of the correlative nodes, and the visiting probability serves as weight values; and the network pre-downloading module is applicable to sequencing the weight values of the correlative nodes and preferably preloading the webpages corresponding to the correlative nodes with large weight values. The problem that server side operation resources and communication resources in data networks are wasted due to the fact that substantial useless webpages are pre-downloaded can be solved.

A method for supporting permanent online of an application client comprises the following steps: establishing a long link between an always online engine (AOE) (101) located in a terminal (10) and an always online gateway (AOG) (20) located on a network side, wherein at least two application clients are respectively communicated with one or more application servers (04, 05) through the long link; during a process of establishing the long link, providing routing information to the AOE (101) and providing authentication information to the AOG (20) by a user management server (30) located on the network side.

The invention relates to a navigation method, which comprises: according to the starting point and the end point submitted by a terminal, calculating a first navigation route between the starting point and the end point and reversing back to the terminal; receiving positioning information of the terminal and a real-time road condition acquiring request; calculating a second navigation route between the current position in the positioning information and the end point according to the real-time road condition; and according to the predetermined rule, determining whether the second navigation route is superior to the navigation route between the current position and the end point in the first navigation route, and reversing back the second navigation route to the terminal if the second navigation route is superior to the navigation route between the current position and the end point in the first navigation route. In addition, the present invention further provides a navigation apparatus. With the navigation method and the navigation apparatus, the road utilization rate can be improved, the vehicle navigation efficiency can be improved, and the network communication resources can be saved.

The present disclosure relates to a communication feedback method, apparatus, device, and storage medium, and belongs to the field of communication technologies. The method includes: determining a target subset in the set of multicast receiving devices; and transmitting first control signaling, wherein the first control signaling is used to indicate that the target multicast receiving end in the target subset is performed by using a first feedback manner, and is further used to indicate that other multicast receiving ends other than the target subset are fed back by using a second feedback manner. The signaling overhead can be reduced, the feedback resources are saved, and the problem of loss of communication data due to incorrect reception of the SCI is effectively avoided, and the transmission reliability is improved.

The invention relates to a communication field and discloses a method, a system and a device for location ability negotiation in a worldwide interoperability for microwave access (WiMAX) network, so that the WiMAX network can select a suitable location method according to the location ability of a terminal. In the embodiment of the invention, the terminal or a network side transmits self-location ability related information to the network entity of an access service network. The network entity stores the location ability related information after receiving the location ability related information of the terminal. The location ability related information of the network side includes supporting location method and location related ability. The location ability related information of the terminal includes supporting location method and location related ability and ability to estimate round trip delay (RTD), ability to support or nonsupport to report measurement result in idle, ability to support a location request notification process, etc..

The invention provides a cloud-side-end cooperative unloading method and system based on an assembly line and relates to the technical field of mobile edge computing. Tasks are allocated through the pipeline unloading strategy, and communication resources transmitted between a mobile device and an edge node and between the edge node and a cloud center by the time delay sensitive tasks can be effectively reduced, so that transmission time of the time delay sensitive tasks among the mobile device, the edge node and the cloud center is shortened, and the purpose of reducing time delay is achieved. Meanwhile, on the basis of the cloud side cooperative unloading architecture of the assembly line, an assembly line unloading strategy, computing resources and communication resources are jointly considered, the problem of minimizing the total waiting time delay of all mobile devices is proposed, tasks can be computed at the local of the mobile devices, MEC servers of edge nodes and a cloud endat the same time, and the efficiency of the system is improved. System time delay is reduced, and the requirement of a time delay sensitive task on timeliness is met.

The invention relates to a multi-agent cluster grouping time-varying formation tracking control method and system. The multi-agent cluster grouping time-varying formation tracking control method comprises the steps of: acquiring an individual mathematic model in a state space form for describing motion characteristics and a directed topological graph for describing a communication relation according to the individual dynamic characteristics and the communication relation of a multi-agent cluster system, wherein the multi-agent cluster system comprises a leader and followers; determining a vector of expected time-varying formation based on the individual mathematical model and the communication relation to obtain a time-varying formation tracking error; converting the time-varying formationtracking error; determining a grouped time-varying formation tracking controller with topology switching based on the converted time-varying formation tracking error; and realizing grouping formationtracking control on the system based on the grouped time-varying formation tracking controller with topology switching. The multi-agent cluster grouping time-varying formation tracking control methodand the system provided by the invention have better self-organization and fault tolerance, and can face challenge application situations of communication faults and insufficient communication capability.

The invention, which belongs to the technical fields of the intelligent networking vehicle and vehicle-road coordination, provides a cloud-service-based green-wave vehicle speed guidance method and system of light-controlled intersection. The system is composed of a cloud server, a signal light data acquisition device, and an intelligent networking vehicle client, wherein the signal light data acquisition device and the intelligent networking vehicle client are connected with the cloud server respectively. In addition, according to the method, signal light configuration and real-time state data are collected; the collected data are uploaded to the cloud server in real time and the corresponding data are stored in a database; on the basis of signal light data stored in the database, the cloud server generates signal light state data and green-wave vehicle speed guidance service data based on a client request and sends the data to the client; and the client receives the data and then displays the data for a user by an intelligent mobile terminal. Therefore, the system structure of the green-wave vehicle speed guidance application of the light-controlled intersection is simplified; the communication requirement and the computing capability requirement of the system equipment are reduced; air interface communication resources are saved; and the application deployment and promotion costs are reduced.

The invention relates to a Markov jump based distributed event triggered filtering system and a design method thereof. The system comprises N filtering links, and is characterized in that each filtering link comprises a sensor, an event trigger, a zero-order retainer and a filter which are sequentially connected, the sensors are connected with a measured object, the filter in each filtering link further performs communication connection with the other neighbor filters, the communication topology among the N filters in the system is of a non-homogeneous Markov jump mode, the mutually connected filters perform information exchange under each type of non-homogeneous Markov link topology, and the filter in each filtering link is further connected with the corresponding event trigger in the filtering link. Compared with the prior art, the Markov jump based distributed event triggered filtering system has good anti-noise capacity, effectively reduces the number of data transmission times under the premise of ensuring the filtering performance and saves network resources.

The embodiment of the invention discloses a method for sending an uplink detection signal in a multi-input and multi-output system, which comprises the following steps: allocating a conditional parameter for a complete channel matrix H to be estimated and a signal transmission parameter for a terminal UE transmitting an uplink detection sounding signal to a base station Node B at the network side; and when the complete channel matrix H to be estimated is determined according to the conditional parameter and when the UE receives the dispatching message from the base station Node B, the uplink detection sounding signal is respectively transmitted to the Node B according the signal transmission parameter by various antennas of the UE. The invention can be used to provide the uplink detection sounding signal for estimating the complete channel matrix H.

The invention discloses a device management method, management platform, device and system, and belongs to the technical field of computers. The method comprises the steps of generating an executive instruction for instructing a Redis device to execute the assigned operation, determining a message queue monitored by the Redis device, and sending a management instruction to the Redis device through the message queue monitored by the Redis device, wherein the message queue is used for providing the management instruction for the Redis device which monitors the message queue. The management platform comprises a generating module, a first determining module and a first sending module. According to the device management method, the problems that due to the fact that the management platform logs in the Redis device according to secret keys, the number of signalings between the management platform and the Redis device is increased, and the communication resources are wasted are solved, the effect of saving the communication resources is achieved, and the safety is improved.

This invention relates to a method for allocating resources in a wireless communication system and a system thereof. The disclosed method comprises steps for: allowing a user's terminal to receive information about the wireless transmission resources among semi-permanent transmission resources; performing CRC-calculation by receiving a message about the allocation of the semi-permanent transmission resources based on the received information; verifying the validity of the message by comparing the information about the wireless resources indicated in the received message with the received information about the wireless transmission resources; and receiving data as the transmission resources indicated in the message if there is no error in the verification.

The invention relates to a state feedback control method of an automobile active suspension based on event triggering. The method mainly solves the technical problems of an existing active controllerof heavy redundant operation, large actuator loss and communication waste. According to the technical scheme, the state feedback control method of the automobile active suspension based on event triggering comprises the control steps that 1, a state space math model of an automobile active suspension system is established; 2, an information transmission mechanism based on event triggering is established; 3, an H8 controller based on event triggering is determined. According to the method, the information transmission mechanism based on event triggering is adopted in the feedback control of theactive suspension system, and the relationship between the threshold condition parameters in the mechanism and the control performance indexes as required by the system is established. Thus, transmission and computing of redundant sampling data are effectively reduced on the basis of ensuring the system performance, the information transmission quantity of the suspension system is effectively decreased, and communication and computing resources are saved.

Storing data locally or at an edge of a wireless network is disclosed. The wireless network receives from a communication terminal a request to get content data. The request may indicate the content data and an application server where the content data is accessible. The wireless network determines, based on predetermined conditions, that the content data will be cached or stored in a local data store associated with the wireless network. The content data may then be communicated on demand to a second communication terminal that is attached to the wireless network.

The invention discloses a channel quality indication predicting and compensating method and a channel quality indication predicting and compensating system. The method comprises the following steps of: accumulating CQI values of the same subband or full bandwidth at same intervals to form a CQI time sequence; identifying an autoregressive summarization moving average model, namely according to the CQI time sequence, identifying the process of the autoregressive summarization moving average model and determining parameters in the autoregressive summarization moving average model; estimating the parameters of the autoregressive summarization moving average model to determine the autoregressive summarization moving average model; and predicting the CQI values based on the determined autoregressive summarization moving average model. The method can effectively reduce the difference of the original CQI values and a true value at the current moment so as to save communication resources and energy and improve the system communication capacity; and the method also has the advantages of low complexity of algorithms and convenient implementation.

The invention provides a method for updating and displaying a navigation route of a real-time traffic status and a navigation server. The method comprises the following steps of: calculating the running distance of a mobile terminal which runs for a first preset period of time according to an acquired current optimal route; calculating a second period of time needed by the mobile terminal for running by the running distance according to the acquired current displayed route; and when the difference between the second period of time and the first preset period of time is more than a preset threshold, transmitting the current optimal route to the mobile terminal to update a current displayed route into a current optimal route by using the mobile terminal. Due to the adoption of the method for updating and displaying the navigation route of the real-time traffic status and the navigation server, the displayed navigation route is updated only when the current optimal route is remarkably superior to the current displayed route, the updating frequency of the navigation route is lowered, and valuable communication resource is saved.