31results about How to "Reduce interaction overhead" patented technology

Embodiments of the invention disclose a file writing method which is applied to a file access client. The method comprises the following steps: receiving a write request sent by an application program, wherein the write request is used for requesting to write to-be-written data in a target file; obtaining metadata of the target file from a local database, wherein the metadata at least comprises fragment position information of the target file; and writing the to-be-written data into a corresponding data server according to the fragment position information. The embodiments of the invention furthermore provide a file reading method, a file deletion method, a file query method and corresponding equipment.

The invention discloses a heterogeneous service QoS based LTE network inter-cell interference ordination method and solves the problem of low throughput of cell-edge users. The method comprises the steps of: (1) demarcating a service cell and defining business type, (2) giving the source block number for each type of business, service priority and maximum delay, (3) sequencing the source blocks in a system band, (4) demarcating a common frequency pond from the sequenced system band, (5) calculating the edge business load index through each cell and determining the demarcating method of the common frequency, (6) regionalizing the center of the cell and defining the source allocation index for each region and (7) allocating the source block to the edge user through each cell and then allocating the source block to the center user according to the source allocation index. The method of the invention can adapt to the change of cell edge business, decrease the signaling expense, and increase the throughput of the cell edge and the whole throughput of the system.

The invention discloses a system and method for prefetching a file layout through readdir++ in a cluster file system. The system comprises a client side module (1) and a server module (2). The client side module (1) is used for obtaining or returning catalogue reading authorization from the server module (2); after the catalogue reading authentication is obtained, catalogue reading requests are sent to the server module (2); a webpage which is sent by the server module (2) and contains the file layout is stored in a local cache, and when the client side module (1) reads files in a catalogue, the file layout stored in the local cache is used directly. The server module (2) is used for authorizing the catalogue reading authorization to the client side module (1) or recalling the catalogue reading authorization from the client side module (1); when the catalogue reading requests are received, metadata information including the file layout is encapsulated in the webpage, and the webpage is sent to the client side module (1). Therefore, network interaction overheads for acquiring the file layout in the file reading process can be reduced, and the reading access performance of the massive small files can be improved greatly.

The invention discloses a reconfiguration method and device. The method includes the following steps: a configuration management node sends a configuration message used for requesting current network state information of a communication station; the configuration management node receives a response message of the configuration message, the response message carrying the current network state information of the communication station; and the configuration management node makes a decision on reconfiguration according to the current network state information. Through the reconfiguration method provided by the invention, problems caused by lack of standardization of the reconfiguration decision in related technologies are solved, enables the reconfiguration decision to be more standard, improves resource configuration reasonability, improves spectral efficiency, and reduces the signaling interaction overhead and processing delay increased due to configuration decision ineffectiveness.

The invention discloses an interference management method under partial channel state information in an uplink. The method mainly solves the problem in the prior art that a resource distribution method is great in information interaction cost and an association control method is low in convergence speed. The method comprises following steps that: 1) a macro base station carries out association control to all users by a history subgradient descent method; 2), a home base station distributes resources to every user associated with the home base station according to a constructed home user utility function; 3), the macro base station firstly selects a reference home base station for every user associated with the macro base station and then distributes resources to every user associated with the macro base station according to a constructed macro user utility function. In application of the method, the cross layer interference and the information interaction cost are reduced; meanwhile, the system throughput and the convergence speed of the association control are improved; and the method is applicable to a macro base station and home base station coexisting heterogeneous wireless network.

The invention provides a terminal identifier distribution method and a communication system. The method comprises the following steps that: A, a base station distributes a plurality of terminal identifiers from a self maintained terminal identifier resource pool to trunk equipment; and B, after receiving access request of a user, the trunk equipment selects one of the plurality of terminal identifiers and distributes the terminal identifier to the user. Because of the trunk managed and distributed terminal identifier, the access time delay of the user can be effectively shortened, and the signaling interaction expense can be reduced.

The invention discloses a spectrum sharing method and a communication site. The method includes: the communication site requests a related communication site to change the spectrum sharing mode; and the communication site determines whether the spectrum sharing mode is changed according to information fed back by the related communication site. According to the method, for a plurality of communication sites working in a co-frequency manner, the communication sites send a spectrum sharing mode changing message to the related communication site, the conversion of the spectrum sharing mode is realized, and the requirements of different coexistence environments is flexibly met; the system performance is enhanced, the possible condition that the preset fixed spectrum sharing method cannot solve the problem of network coexistence is avoided, the utilization rate of spectrum is increased, and the increase of the signaling interaction cost and processing time delay due to ineffective configuration decision can be reduced.

The invention relates to a resource request method, a DHCPv6 server and a resource allocation system. The method includes a DHCPv6 server of the sixth version of the Dynamic Host Configuration Protocol sending a first notification message to a DHCPv6 client, the first notification message carrying a first resource status indication; the first resource status indication carrying a specified A status code indicating that no resources are available within the time; so that the DHCPv6 client sends a resource request message after the specified time. The present invention carries the specified time in the notification message, so that the client sends the solicit message after the specified time; reduces unnecessary message interaction overhead between the client / server, reduces network bandwidth load, and avoids constant Handle a large number of invalid request packets to relieve server processing pressure.

The invention relates to a low-interaction-overhead counter synchronization method. The method comprises the steps of splitting a time counter value of a sending end; sending a low part of a counter value of the sending end; extracting the low part of the counter value of the sending end by a receiving end; splitting a time counter value of the receiving end; and through comparison of the low parts of the counter values of the sending end and the receiving end, carrying out restoration at the receiving end, thereby obtaining the time counter value of the sending end, and realizing the synchronization of counters of the communication sending end and receiving end. The method is applicable to a communication system with limited channel resources; in a data communication encryption application, according to the method, cipher information of the two communication parties is synchronized with low interaction overhead; and accurate encryption and decryption behaviors of the sending end and the receiving end are realized.

The invention discloses a method of establishing a networking terminal safety domain and a system thereof. The method comprises the following steps that a first terminal node in a first safety domain and a second terminal node in a second safety domain carry out new domain configuration negotiation; after the new domain configuration negotiation is completed, the first terminal node and the second terminal node send a domain configuration updating instruction to other terminal nodes in the safety domains where the first terminal node and the second terminal node are located respectively; the other terminal nodes in the first safety domain and in the second safety domain complete configuration updating so that all the terminal nodes are joined in new safety domains. Through the method and the system in the invention, a networking node can complete domain configuration negotiation with a foreign domain through a non-encryption channel; through an encryption channel, domain configuration updating of a current domain is monitored and completed; when all the nodes in the two different domains are simultaneously divided into one new safety domain, operation of re-establishing the domain is simple and flexible; and signaling interaction expenditures of the terminal nodes can be reduced and an error rate is decreased so that a process of establishing the safety domain is high-efficient, safe and reliable.

A key generation method and equipment are disclosed, the method comprising: after a terminal completes initial registration authentication, an AUSF generates an authentication and key management for applications (AKMA) intermediate key KAKMA and generates a key identifier of the KAKMA according to an AUSF key KAUSF and preset parameters generated in the initial registration authentication of the terminal. According to the key generation method and equipment provided by the embodiment of the invention, the RAND sum in an authentication vector is used as an input parameter, so that the freshness and the replay attack resistance of the intermediate key are improved, and the freshness and the replay attack resistance of the application layer session key deduced by the AKMA intermediate key are improved. Besides, the key identifier of the intermediate key in the embodiment of the invention is synchronously generated with the intermediate key after the terminal is successfully authenticated for the first time, so that the signaling interaction overhead in a mode of generating the key identifier as required can be reduced.

The invention discloses a multi-cell collaborative large-scale MIMO robust precoding design and distributed processing method. The method comprises the following steps: (1) establishing a posterior channel model of a user; (2) establishing an interference and noise covariance model of a user and a covariance model of a received signal; (3) establishing a traversal rate model or a traversal rate upper bound model of the user; and (4) solving a weighted traversal and rate maximization problem or a weighted traversal and rate upper bound maximization problem to obtain a precoding iterative formula. According to the robust precoding design, the influence of channel estimation errors, channel aging and channel correlation on precoding can be resisted by establishing the posterior channel model of the user, and the problem of weighting and rate maximization is solved by modeling user interference and noise including inter-cell interference. The invention discloses three distributed processing methods with different information interaction quantities, and specifically realizes a multi-cell collaborative large-scale MIMO robust precoding design.

The invention relates to an IP address allocation method and device, equipment and a medium. The method comprises the following steps: receiving a session establishment request sent by first user equipment; the session establishment request comprises subscription information of the first user equipment; judging whether the subscription information contains a static address or not; if the first user equipment contains the static address, allocating the static address to the first user equipment under the condition that the static address belongs to a pre-planned address range; if the first user equipment does not contain the static address, selecting a target address attribute according to the session establishment request or subscription information, and performing dynamic address allocation on the first user equipment based on the target address attribute and a first address pool; wherein the first address pool is a pre-configured address pool matched with the target address attribute. According to the invention, the signaling overhead can be reduced, and the address allocation efficiency and stability can be improved.

This invention relates to one visual network self-adaptive load even transfer method in computer multi-media field, which comprises the following steps: generating dynamic area corporation member list, service point virtual organization point list and belong service point provider list; after customer sends requires, network grid door automatically set its direction to service points and judging whether the real servo satisfies the service quality requires; if yes, ending this transfer; if not, according to dynamic area load value to judge whether the service point satisfies the service needs.

The invention relates to a low-interaction-overhead counter synchronization method. The method comprises the steps of splitting a time counter value of a sending end; sending a low part of a counter value of the sending end; extracting the low part of the counter value of the sending end by a receiving end; splitting a time counter value of the receiving end; and through comparison of the low parts of the counter values of the sending end and the receiving end, carrying out restoration at the receiving end, thereby obtaining the time counter value of the sending end, and realizing the synchronization of counters of the communication sending end and receiving end. The method is applicable to a communication system with limited channel resources; in a data communication encryption application, according to the method, cipher information of the two communication parties is synchronized with low interaction overhead; and accurate encryption and decryption behaviors of the sending end and the receiving end are realized.

The invention discloses a multi-cell cooperative large-scale MIMO robust precoding design and distributed processing method. The method includes the following steps: (1) establishing the user's posterior channel model; (2) establishing the user's interference plus noise Covariance model and covariance model of the received signal; (3) Establish the user's ergodic rate model or ergodic rate upper bound model; (4) Solve the weighted ergodic and rate maximization problem or the weighted ergodic and rate upper bound maximization problem to obtain the predicted Encoding iterative. Among them, the robust precoding design can resist the influence of channel estimation error, channel aging, and channel correlation on precoding by establishing the user's a posteriori channel model. By modeling user interference plus noise including inter-cell interference, the This solves a weighted sum rate maximization problem. Three distributed processing methods with different amounts of information interaction are disclosed, and the multi-cell coordinated massive MIMO robust precoding design is specifically realized.

The present invention disclosed the interference management method under some channel status information in the uplink link, which mainly solves the problem of the existing technology resource distribution method information interaction overhead and the associated control method slowly convergence.The realization step is: 1) Hongji Station adopts historical sub -gradient decline method to control all users; 2) home base stations to allocate resource allocation according to the structured home user utility functions as associated with each user; 3) Hongji Station First of allIn order to associate each user, select a reference home base station, and then allocate resource allocation to each user associated to each user based on the constructed macro user effectiveness.The present invention not only reduces cross -layer interference and information interaction overhead, but also increases the convergence speed of system throughput and associated control, which can be used for the heterogeneous wireless network coexisting with family base stations.

A spectrum sharing method is described. The method includes requesting, by the communication station, to one or more relevant communication stations to change spectrum sharing manner; determining, by the communication station, whether or not to change the spectrum sharing manner in accordance with feedback information from the relevant communication station. Using the method, fora plurality of communication stations which work at same frequency, the transition of the spectrum sharing manner is achieved by sending spectrum sharingmanner changing message to the relevant communication station by the communication station, which flexibly adapts to the needs of different coexistence environments, improves the system performance, and avoids the possible situation that the fixed pre-set spectrum sharing method cannot solve the problem of network coexistence, thereby increasing the spectrum efficiency, and further reducing increased signaling overhead and processing latency caused by invalid configuration decision.

The invention discloses a millimeter wave MIMO user incremental cooperative beam selection method based on wide learning, which comprises the following steps that: aiming at the downlink beam selection problem of a multipoint cooperative millimeter wave large-scale MIMO scene, each user collects downlink wide beam response and transmission narrow beam response, trains a local wide learning network, and transmits the downlink wide beam response to the local wide learning network; and beam selection is carried out based on the predicted narrow beam response. Furthermore, the training problem of the local network of each user is modeled into a distributed optimization problem with consistency constraint, and effective sharing of training data can be realized by utilizing D2D communication between adjacent users. Furthermore, an incremental updating mode of the local network of the user in the cooperation mode is designed, so that the training complexity of the network can be effectively reduced. According to the method, the capability of mining the relationship between the multi-base-station wide beam response and the transmission narrow beam response under the small sample condition of distributed wide learning is fully utilized, and low-complexity and low-overhead beam selection of the fast time-varying scene multipoint cooperation millimeter wave large-scale system can be realized.

The embodiment of the invention provides a cluster creation method and device, equipment and a storage medium, and the method comprises the steps: obtaining a cluster definition file, and obtaining a component installation list, a node equipment group corresponding to the component installation list, and node equipment in the node equipment group from the cluster definition file; controlling the node equipment in the node group to install the components in the component installation list; and sending the configuration content of the components in the cluster definition file to the node equipment, so that the node equipment configures the components based on the configuration content. According to the technical scheme provided by the embodiment of the invention, the rapid creation of the cluster can be realized, and the interaction overhead of cluster creation can be reduced.

The embodiment of the invention provides a data processing method and device.The data processing method comprises the steps of receiving a data processing request, wherein encrypted target data are carried in the data processing request; decrypting the encrypted target data, and determining a target index node corresponding to the target data based on a keyword of the target data obtained after decryption; when it is determined that the target index node does not have the first cache unit and the first cache unit reaches a preset cache threshold value, determining an adjustment index node in the first cache unit based on a preset strategy; and deleting the adjustment index node in the first cache unit, and writing the target index node into the first cache unit to realize data processing of the target data.

The invention provides an LTE random access method for an intelligent power grid, and the method comprises the steps that a user terminal high layer requests for triggering the random access process of a physical layer; a user terminal calculates the transmission power of a random access channel based on the priority of different power businesses; the user terminal selects a precursor random sequence according to the calculates transmission power, and transmits a single precursor sequence in a random access channel resource specified by the user terminal high layer; a base station receives an uplink message, and returns the response information to the user terminal. The method provided by the invention meets the demands of the intelligent power grid for multi-business access, solves a problem of contradiction between limited access resources and the random access demands of a large number of terminals, achieves the different priority access of different power businesses, and guarantees the service quality of the power businesses.

A base station-user networking mode in a UDN network is used for the following scenarios: a communication system comprising a plurality of base stations and a plurality of users divides the base stations into different clusters, and the users in the clusters adopt a zero-forcing precoding scheme to perform downlink transmission. The method is characterized by comprising the following two operationsteps: (1) a base station clustering stage: taking geographical coordinate information of base stations as input, dividing the base stations into different clusters by utilizing a mean vector offsetalgorithm, and ensuring that the base stations with closer geographical positions are in the same cluster; and (2) a user network access stage: after the base stations are clustered, the base stationsin the same cluster send the same reference signal, the user receives and calculates a reference signal power value, and when an antenna constraint condition is satisfied, base station-user cooperation finds a network access mode which maximizes the sum of user reference received power values through a greedy algorithm. Compared with the traditional clustering method, the base station clusteringmethod provided by the invention has the advantages that the result is more stable and effective, and the practicability is higher.

The invention discloses a method of establishing a networking terminal safety domain and a system thereof. The method comprises the following steps that a first terminal node in a first safety domain and a second terminal node in a second safety domain carry out new domain configuration negotiation; after the new domain configuration negotiation is completed, the first terminal node and the second terminal node send a domain configuration updating instruction to other terminal nodes in the safety domains where the first terminal node and the second terminal node are located respectively; the other terminal nodes in the first safety domain and in the second safety domain complete configuration updating so that all the terminal nodes are joined in new safety domains. Through the method and the system in the invention, a networking node can complete domain configuration negotiation with a foreign domain through a non-encryption channel; through an encryption channel, domain configuration updating of a current domain is monitored and completed; when all the nodes in the two different domains are simultaneously divided into one new safety domain, operation of re-establishing the domain is simple and flexible; and signaling interaction expenditures of the terminal nodes can be reduced and an error rate is decreased so that a process of establishing the safety domain is high-efficient, safe and reliable.

The embodiment of the invention provides a configuration method, device and system, computing equipment and a storage medium. The configuration method is applied to a distribution end, and comprises the following steps: acquiring a first configuration request which is triggered by a user, aims at a distributed system and comprises first configuration information; detecting whether the first configuration information is valid; if the first configuration information is valid, forwarding the first configuration request to a distributed coordination service cluster, so that the distributed coordination service cluster updates the configuration information in a disk based on the first configuration information; and sending a second configuration request to a target execution end, wherein the second configuration request is used for indicating the target execution end to configure the distributed system by using the first configuration information in the disk. According to the technical scheme provided by the embodiment of the invention, the configuration efficiency of the distributed system can be improved.

The invention discloses a cloud service data efficient perception system based on active computing soft-sensors. The new type active computing soft-sensors (ACS) are adopted in an active computing soft-sensor management (ACSM) module. According to the architecture, collection tasks of service data of cloud service stations can be finished, preliminary analysis of massive data can be finished, and preprocessing tasks of unstructured data can be finished. Because the computing and preprocessing functions of the unstructured data are added to Sensors ends, according to the architecture, the load of processing the massive data by a trust computing module can be greatly mitigated. An active mechanism of time drive and event drive is used in the ACS technique, and in this way, the interaction cost of the perception system can be reduced remarkably. Moreover, the time consistency problem in data perception can be solved by importing the ACS technique.

The invention discloses a system and a method for prefetching file layout by readdir++ in a cluster file system. The system includes: a client module (1), which is used to obtain or return a read directory authorization from a server module (2); After the directory reading is authorized, a directory reading request is sent to the server module (2); the page containing the file layout sent by the server module (2) is stored in the local cache, and the client module (1) reads the directory under the directory directly use the file layout stored in the local cache; the server module (2) is used to grant or recall the read directory authorization to the client module (1); when receiving the read directory request, also Encapsulate metadata information including file layout in a page, and send the page to the client module (1). As a result, the network interaction overhead of obtaining the file layout when reading files can be reduced, and the performance of reading and accessing a large number of small files can be greatly improved.

The invention discloses a heterogeneous service QoS based LTE network inter-cell interference ordination method and solves the problem of low throughput of cell-edge users. The method comprises the steps of: (1) demarcating a service cell and defining business type, (2) giving the source block number for each type of business, service priority and maximum delay, (3) sequencing the source blocks in a system band, (4) demarcating a common frequency pond from the sequenced system band, (5) calculating the edge business load index through each cell and determining the demarcating method of the common frequency, (6) regionalizing the center of the cell and defining the source allocation index for each region and (7) allocating the source block to the edge user through each cell and then allocating the source block to the center user according to the source allocation index. The method of the invention can adapt to the change of cell edge business, decrease the signaling expense, and increase the throughput of the cell edge and the whole throughput of the system.