32results about How to "Reduce the likelihood of conflict" patented technology

The embodiments of the present invention disclose a reference signal transmission method, a message transmission method, a resource transmission determination method and a resource transmission determination device. According to the reference signal transmission method, the message transmission method, the resource transmission determination method and the resource transmission determination device of the invention, when a first device needs to transmit reference signals, the first device may determine transmission resource information related to transmission resources used for transmitting the reference signals from a time slot according to the time-domain resource parameters of the reference signals, wherein the transmission resource information may contain the symbol locations of the transmission resources in the time slot and / or space-domain resources on symbols in the transmission resources. Compared with a conventional method which can only transmit location reference signals through a fixed position, and the transmission methods of the invention can dynamically determine the transmission resource for transmitting the transmission reference signals according to the time-domain resource parameters of the reference signals, thereby reducing the possibility of the conflict of the transmission of the reference signals with the transmission of other messages; and the transmission methods of the invention can determine the transmission resources of the reference signals. According to the methods of the invention, when a first resource and a second resource have a time-domain overlapping portion, the first device may only transmit part of the reference signals or not transmit the reference signals, and therefore, the transmission performance of the first device can be improved.

The invention relates to an incremental intrusion detection method fusing a rough set theory and a DS evidence theory, and belongs to the network information security field. Aiming at the problems that a detection system cannot satisfy a high speed network real-time detection demand and the detection precision is not high, the method uses a rough set theory to pre-treat a network data stream so as to reduce redundant data, and improves the detection speed. A misuse rule set is extracted from a reduced data set, most attack types are identified through a pattern matching mode, and furthermore the misuse detection is realized. The method employs a misuse detection module, an abnormal detection module, and an incremental unit. The abnormal detection module is realized based on the DS evidence theory and used for detecting attack types not included in a misuse rule base. The incremental unit is used for improving the misuse rule base and updating a built network normal behavior profile in real time. The incremental intrusion detection method fusing the rough set theory and the DS evidence theory improves the detection efficiency and the detection precision of the detection system, and especially for newly arisen attack types.

The invention relates to a building method of a self-organized reconfigurable wireless sensor network, which comprises four parts including a networking procedure, a media access protocol, network protocol data packet frame formats and node setting. A host node exists, new slave nodes which are arranged in an effective area automatically send access request information to the host node, and the host node assigns addresses and information transfer routes to the new slave nodes; data transmission is carried out among the network nodes in a multi-hop mode, and the P-persistent media access protocol of carrier sense multiple access / collision avoidance is adopted; the transmitted information adopts different frame formats according to the different tasks; hardware of the host node comprises a transmitting and receiving controller and a computer; and hardware of each slave node comprises a transmitting and receiving controller, a single-chip microcomputer chip and a filter amplifying circuit. The building method disclosed by the invention is simple and easy for operation. A built system has the functions of self-organized network access, network reconfiguration and distributed data acquisition transmission, and the building method is particularly suitable for building small wireless data acquisition sensor networks.

The invention provides an automatic information collection method and system based on power line carrier communication. The automatic information collection method includes that a master control device and a collection device connected with the master control device are powered on; after the master control device is powered on, distributed network messages are issued through power line carriers; after the collection device is powered on, information of a metering device connected with the collection device is collected, and messages on the power line carriers containing the distributed network messages are started to be monitored; the collection device sends a network access request message after monitoring any message on the power line carriers; the master control device sends a network access confirmation message after receiving the network access request message; and the collection device reports the information of the metering device collected by the collection device to the master control device after receiving the network access confirmation message. The master control device and the collection device of the system perform networking automatically, the information of the metering device is reported, networking time is saved, the use ratio of a carrier channel is improved, and manual intervention is not needed.

This disclosure relates to license assisted access communication with dynamic use of request-to-send and clear-to-send messages. This disclosure relates to performing cellular communication in unlicensed spectrum in a manner that accounts for the possible existence of hidden nodes by opportunistically introducing the use of RTS and CTS messages. A listen-before-talk procedure may be performed to determine whether a wireless medium is available. When the listen-before-talk procedure is complete, an amount of time until a next possible start time for communicating in the cellular communication system according to a timing synchronization scheme for the cellular communication system may be determined. The wireless medium may be occupied until the next possible start time for communicating inthe cellular communication system in a manner selected based at least in part on the amount of time until the next possible start time for communicating in the cellular communication system. Cellularcommunication may be performed on the wireless medium at the next possible start time for communicating in the cellular communication system.

The invention discloses a motor control network and method for a surgical robot. The surgical robot comprises N mechanical arms, the motor control network comprises a master controller, a first-stage CAN bus, second-stage CAN buses corresponding to the mechanical arms respectively, a plurality of stations located on each mechanical arm, and motors correspondingly connected with the stations. The stations on each mechanical arm comprise one relay station. The number of the stations on each of the first-stage CAN bus and the second-stage CAN buses is greatly reduced, the probability of data frame conflicting is reduced, and the transmission delay time of part of communication data is shortened; in addition, the communication traffic on each CAN bus is greatly reduced; when ports of the stations on a certain mechanical arm break down, the other mechanical arms of the surgical robot cannot be influenced, high stability is achieved, and the overall performance is good.

The invention relates to a system and method for realizing mobile internet service access by using configuration files to control cache. The system comprises a main cache region and a secondary cache region arranged on a cache server at a server-side, and a container arranged at the server-side and used for storing and managing configuration files, wherein the configuration files comprise a container configuration file, a routing configuration file, and a difference configuration file; when a mobile terminal requests the service and the access data from a server, the main cache region is filled, the service keywords, the priority, the timestamp, the service entry address and like fields are stored in the routing configuration file; the secondary cache region is automatically filled along the filling of the main cache region so as to form a transcript of the primary cache region; the difference configuration file is used for recording the residual quantity change between the main cache region and the secondary cache region. The system disclosed by the invention reduces the time for service access and the data acquisition, and improves the access efficiency.

The invention provides a partitioned data control method and a partitioned data control system. The partitioned data control method comprises the following steps: receiving a service request, wherein the service request comprises a service type tag of the service to be processed; confirming a processing node corresponding to the service type tag; transferring the service request to the processing node, thereby processing the service request at the processing node. By the adoption of the technical scheme provided by the invention, the processing efficiency of the system is improved, and the possibility that conflict is made in data operation of the system is reduced.

The invention discloses a wireless local area network access method and wireless local area network access equipment. The wireless local area network access method comprises the steps of: generating a broadcast message frame which at least comprises channel resource allocation information, wherein the channel resource allocation information at least comprises allocation information for allocating channel resources into a plurality of resource blocks, and a plurality of the resource blocks are used when a plurality of stations are accessed to channels; and sending the broadcast message frame to the stations so that the stations can be accessed to the channels according to the channel resource allocation information in the broadcast message frame. When number of the stations is unchanged, the fact that the same number of stations compete for the same channel is changed into the fact that the same number of stations compete for a plurality of the resource blocks, thereby reducing the possibility of conflicts.

The embodiment of the invention provides a function service access method and device and a storage medium. The method comprises the following steps: determining a target function service, wherein the target function service is any function service in at least one provided function service; obtaining a function identifier of the target function service, wherein the function identifier is used for uniquely identifying the target function service; and obtaining integer information corresponding to the function identifier by using a corresponding relationship between a preset identifier and an integer to obtain a target port number, so as to complete access to an application service provided by the target function service through the target port number. Through the embodiment of the invention, the access effect of the function service can be improved.

The invention provides a resource allocation method and device, and aims to reduce the possibility of air interface resource conflicts by distinguishing service types to allocate reserved resources and non-reserved resources, so that the resource scheduling efficiency is improved on the whole, and the user experience is improved. The resource allocation method is executed by access network equipment and comprises the following steps: determining a time unit for scheduling uplink data; determining reserved resources of a guaranteed bit rate (GBR) service in the time unit; and allocating reserved resources in the time unit and / or non-reserved resources in the time unit to user equipment (UE) according to the service type of the uplink data.

The invention relates to a construction method for a network-on-chip topological structure based on a no-buffer router framework. On the basis of a traditional centralized mesh topological structure, each router and adjacent routers in horizontal and longitudinal directions are connected together through bidirectional data channels; all routers in each line and each row are connected together through bidirectional buses to form a redundant centralized mesh-bus structure. For the multiple routers in a single line or row, not only can data be transmitted step by step through mesh lines but also the data can directly arrive at the destination through the buses. Under the condition that conflicts occur due to path selection during the transmission process of data packets, one of the data packets can be transmitted through the buses, and the other data packet can be transmitted through the mesh lines; the two data packets do not deviate from the optimal line, and therefore, the probability that the data packets deflect to other lines or rows is reduced, the influence on the transmission of other data packets is reduced, and the average delay and the energy consumption of the whole network on a chip are reduced.

Provided are a method for adjusting a contention window size in a wireless communication system and a terminal using the method. The method comprises: transmitting first data according to an autonomous uplink transmission (AUL) to a base station; transmitting second data according to a grant-based uplink transmission to the base station; receiving first ACK / NACK information for the first data andsecond ACK / NACK information for the second data through AUL-DFI; and adjusting a contention window size on the basis of at least one of the first ACK / NACK information and the second ACK / NACK information included in the AUL-DFI. When the first data includes only one transport block and the second data includes a plurality of transport blocks, if there is an ACK for at least one of the plurality oftransport blocks, the second ACK / NACK information is set to ACK, and if there are NACKs for all of the plurality of transport blocks, the second ACK / NACK information is set to NACK.

The invention provides a method and a device for showing ontology by utilizing a modeling tool. The method for showing the ontology by utilizing the modeling tool includes that the modeling tool is utilized to establish a first layer of ontology and the first layer of ontology is showed on a graphical interface; the first layer of ontology comprises a first layer of ontological class elements and a first layer of ontological relative elements; a second layer of ontology is established and replaces the first layer of ontology to be showed on the graphical interface; the second layer of ontology comprises a second layer of ontological class elements and a second layer of ontological relative elements, the first layer of ontological class elements are upper layer concepts of the second layer of ontological class elements, and the second layer of ontological relative elements are upper layer concepts of the first layer of ontological relative elements. According to the method and the device for showing the ontology by utilizing the modeling tool, each layer of ontology is established in a multilayer modeling mode, a user can visually view hierarchical structures of the otology concept, the upper concepts and relationships between concepts generate constraints on lower layer concepts and relationships between lower layer concepts, and conflict generation possibilities during ontology establishment are reduced.

The invention provides a ground source heat pump inspection device which comprises an inspection well with an inspection space, a pipeline system and a partial lifting pipeline. The pipeline system penetrates the inspection space. The partial lifting pipeline is connected with the pipeline system, and the other side of the partial lifting pipeline is connected with a master pipeline on the ground source side of the ground source heat pump. The elevation of the pipeline system is larger than that of the master pipeline. The ground source heat pump inspection device has the advantages that the inspection well is lifted to the shallow earth surface, manufacturing cost is lowered, manufacturing difficulty coefficient is reduced, the position of the inspection well is flexible, and possibility that the inspection well conflicts with other underground facilities is lowered.

The invention relates to a building method of a self-organized reconfigurable wireless sensor network, which comprises four parts including a networking procedure, a media access protocol, network protocol data packet frame formats and node setting. A host node exists, new slave nodes which are arranged in an effective area automatically send access request information to the host node, and the host node assigns addresses and information transfer routes to the new slave nodes; data transmission is carried out among the network nodes in a multi-hop mode, and the P-persistent media access protocol of carrier sense multiple access / collision avoidance is adopted; the transmitted information adopts different frame formats according to the different tasks; hardware of the host node comprises a transmitting and receiving controller and a computer; and hardware of each slave node comprises a transmitting and receiving controller, a single-chip microcomputer chip and a filter amplifying circuit. The building method disclosed by the invention is simple and easy for operation. A built system has the functions of self-organized network access, network reconfiguration and distributed data acquisition transmission, and the building method is particularly suitable for building small wireless data acquisition sensor networks.

A method for realizing real-time performance and QoS of a wireless local area network is characterized by adding a QoS intermediate layer on top of the MAC layer of IEEE802.11, which layer is implemented by software; the QoS intermediate layer provides real-time performance and QoS for services. The QoS middle layer is a software implementation on top of the MAC layer of IEEE802.11. It does not change the IEEE802.11 protocol and is suitable for the existing IEEE802.11 protocol and for future improvements of IEEE802.11. Applicable to existing IEEE802.11 products, showing good compatibility and adaptability. The original IEEE802.11 protocol system has a very weak priority differentiation function. It only defines two types of services: real-time (non-competitive) and competitive services, and does not further prioritize real-time services. As more and more applications require further priority identification of services, the present invention provides priority differentiation services for real-time services to provide better differentiation services.

The invention relates to an incremental intrusion detection method fusing a rough set theory and a DS evidence theory, and belongs to the network information security field. Aiming at the problems that a detection system cannot satisfy a high speed network real-time detection demand and the detection precision is not high, the method uses a rough set theory to pre-treat a network data stream so as to reduce redundant data, and improves the detection speed. A misuse rule set is extracted from a reduced data set, most attack types are identified through a pattern matching mode, and furthermore the misuse detection is realized. The method employs a misuse detection module, an abnormal detection module, and an incremental unit. The abnormal detection module is realized based on the DS evidence theory and used for detecting attack types not included in a misuse rule base. The incremental unit is used for improving the misuse rule base and updating a built network normal behavior profile in real time. The incremental intrusion detection method fusing the rough set theory and the DS evidence theory improves the detection efficiency and the detection precision of the detection system, and especially for newly arisen attack types.

The invention discloses an OBO counter value taking method of communication devices. The method comprises the steps: acquiring a Beacon message sent by an AP, wherein the Beacon message comprises the frequency unused rate of the RU in a previous trigger frame and the number of associated communication devices; calculating the number of unallocated communication devices which are not allocated to the RU in the associated communication devices according to the number of the associated communication devices; calculating the number of competitive RUs allocated to the associated communication devices by the AP in the previous trigger frame according to the frequency unutilization rate; acquiring the number of the RUs which are not successfully competed in the competitive RUs distributed to the associated communication equipment by the AP in the previous trigger frame; and determining the value of an OBO counter according to the number of the unallocated communication devices, the number of the competitive RUs and the number of the RUs which do not compete successfully. The invention further discloses the communication devices, electronic equipment and a computer readable storage medium. By adopting the embodiment of the invention, the value of the OBO counter can be determined according to the resource utilization condition of the current AP, so that the associated communication devices can increase the opportunity of successful RU competition.

The embodiment of the present application discloses a reference signal, a message transmission method, a transmission resource determination method, and a device. When the first device needs to transmit a reference signal, the first device can select from the time slot according to the time domain resource parameters of the reference signal. Determine the transmission resource information related to the transmission resource used to transmit the reference signal, the transmission resource information may include the symbol position of the transmission resource in the time slot and / or the airspace resource on the symbol in the transmission resource, Compared with the traditional method, which can only transmit reference signals through fixed positions, the transmission resources for transmitting reference signals can be dynamically determined according to the time domain resource parameters of reference signals, reducing the possibility of conflicts with other messages when sending reference signals . The transmission resource of the reference signal may also be determined, and when the first resource and the second resource overlap in time domain, the first device may only send part of the reference signal or not send the reference signal to improve its own transmission performance.

The invention provides a data communication device and a data communication method. The data communication device comprises a data processing module and a data interaction module, wherein the data processing module generates a first broadcasting message frame and does not generate a random back-off time window when the data interaction module receives a second broadcasting message frame within a preset time threshold, and the type of the second broadcasting message frame is in accordance with that of the first broadcasting message frame; and the data interaction module monitors and receives the second broadcasting message frame and monitors a response message frame of the second broadcasting message frame. With the adoption of an improved random back-off mechanism, the interaction of the message frames can be reduced to the greatest extent when numerous terminals are accessed to a wireless local area network, so that the conflict probability due to the interaction of the numerous message frames is reduced, and the connection efficiency of initial network access of the wireless local area network is improved.

The invention relates to a construction method for a network-on-chip topological structure based on a no-buffer router framework. On the basis of a traditional centralized mesh topological structure, each router and adjacent routers in horizontal and longitudinal directions are connected together through bidirectional data channels; all routers in each line and each row are connected together through bidirectional buses to form a redundant centralized mesh-bus structure. For the multiple routers in a single line or row, not only can data be transmitted step by step through mesh lines but also the data can directly arrive at the destination through the buses. Under the condition that conflicts occur due to path selection during the transmission process of data packets, one of the data packets can be transmitted through the buses, and the other data packet can be transmitted through the mesh lines; the two data packets do not deviate from the optimal line, and therefore, the probability that the data packets deflect to other lines or rows is reduced, the influence on the transmission of other data packets is reduced, and the average delay and the energy consumption of the whole network on a chip are reduced.

The invention provides a data communication device and a data communication method. The data communication device comprises a data processing module and a data interaction module, wherein the data processing module generates a first broadcasting message frame and does not generate a random back-off time window when the data interaction module receives a second broadcasting message frame within a preset time threshold, and the type of the second broadcasting message frame is in accordance with that of the first broadcasting message frame; and the data interaction module monitors and receives the second broadcasting message frame and monitors a response message frame of the second broadcasting message frame. With the adoption of an improved random back-off mechanism, the interaction of the message frames can be reduced to the greatest extent when numerous terminals are accessed to a wireless local area network, so that the conflict probability due to the interaction of the numerous message frames is reduced, and the connection efficiency of initial network access of the wireless local area network is improved.