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35results about How to "Reduce business downtime" patented technology
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Fault handling method, device and system based on network function virtualization
ActiveCN104170323AReduce fault correlation processing timeReduce business downtimeData switching networksCorrelation analysisNetwork service
Embodiments of the invention disclose a fault handling method, device and system based on network function virtualization. A fault correlation analysis request of virtualized network service is sent to a first functional entity via a second functional entity, so that the first functional entity can send the fault information of a VNF and the fault information of an NFVI to the second functional entity when detecting that faults exist in the VNF and the NFVI corresponding to a VNF identifier according to the VNF identifier and an NFVI identifier included in the fault correlation analysis request. Therefore, the second functional entity can perform fault correlation analysis on the virtualized network service and the VNF and the NFVI according to the fault information of the VNF and the fault information of the NFVI. The handling time for fault correlation between the virtualized network service and the VNF and the NFVI is shortened and the fault handling efficiency is improved.
Owner:HUAWEI TECH CO LTD
Full optical fibre protecting device and method
InactiveCN1921357ARealize all-fiber protection schemeImprove reliabilityFibre transmissionSelection arrangementsFiberOptical network unit
The invention relates to a full-fiber protector and relative method, used in Ethernet inactive optical network (EPON). Wherein, said system comprises light terminal, two splitters and several optical network units (ONU); each ONU via two inactive optical network ports (PON) is connected to two splitters; each splitter is connected to two light terminal ports of said light terminal; the full-fiber protector is plugged between two inactive light optical network ports and the user network port of ONU, to send the data received by two inactive light network ports selectively to relative user network port. The invention uses STP / RSTP / MSTP to switch the backup of dual-PON port, and exchanges chip to separate the user network port and inactive optical network port, to improve the light path reliability of ONU in EPON system with low cost.
Owner:NEW H3C TECH CO LTD
Mass data migration method and device
InactiveCN103914458AReduce business downtimeControllable migration processSpecial data processing applicationsData migrationData library
The invention discloses a mass data migration method and device. The method comprises the following steps of establishing a migration configuration table; determining the data migrating type according to whether mass data change in a preset time period; according to the data migrating type, correcting the migration configuration table; migrating the mass data according to the migration configuration table. The mass data migration method can greatly reduce data migration time, service interruption time and the requirements on the varieties of databases.
Owner:HANDAN BRANCH OF CHINA MOBILE GRP HEBEI COMPANYLIMITED
Backup method, device and equipment for forwarding/control separation of BRAS (Broadband Remote Access Server) and machine readable storage medium
ActiveCN108512703AQuick switchReduce business downtimeData switching networksBroadband remote access serverRouting control plane
The disclosure provides a backup method, device and equipment for forwarding / control separation of a BRAS (Broadband Remote Access Server) and a machine readable storage medium. The method comprises the steps of: if an interface connected with main BRAS-UP (BRAS User Plane) equipment is abnormal or a fault message sent by the main BRAS-UP equipment is received, determining that a main tunnel has afault; and if the main tunnel has the fault and a standby tunnel does not have a fault, sending user data corresponding to the main BRAS-UP equipment to standby BRAS-UP equipment by the standby tunnel, so that the standby BRAS-UP equipment carries out service processing according to the user data. By the technical scheme of the disclosure, the BRAS-CP (BRAS Control Plane) equipment can rapidly perceive that the main tunnel has the fault, and timely update states of the main tunnel and the standby tunnel, so that rapid switching of the main and standby tunnels is implemented, service interruption time can be reduced, and user service experience is improved; and rapid switching can be carried out between the BRAS-UP equipment, so that reliability of a forwarding layer is promoted.
Owner:NEW H3C TECH CO LTD
Data transmission method and data transmission device for special two-layer virtual network
The embodiment of the invention provides a data transmission method and a data transmission device for a special two-layer virtual network. The data transmission method is applied to a network comprising a main virtual link and a standby virtual link which are born by traffic engineering, wherein the main virtual link passes an upstream node and a downstream node. The data transmission method comprises the following steps of: detecting a connection state of a communication link to be protected between the upstream node and the downstream node and determining whether the communication link to be protected has faults or not by the upstream node; if the communication link to be protected has faults, carrying out fast rerouting switch on the traffic engineering and transmitting and switching data to a pre-established standby label exchange channel for protecting the communication link to be protected by the upstream node; and triggering the virtual link to switch by the upstream node. According to the embodiment of the invention, when the link has faults, a fast rerouting is locally protected through the traffic engineering and then the virtual link is smoothly switched, so that the speed of fault detection and flow switch is improved and the service interruption time when the link has the faults is shortened.
Owner:HUAWEI TECH CO LTD
Random access method and equipment in cognitive radio system
ActiveCN103167624AIncrease delayAffect the experienceTransmissionWireless communicationFrequency spectrumRandom access memory
The invention discloses a random access method and equipment in a cognitive radio system. The random access method comprises that base station equipment generates a frequency spectrum switch command, the frequency spectrum switch command comprises random access backspacing time parameter information, and the base station equipment sends the frequency spectrum switch command to user equipment in a community to instruct the user equipment to use the random access backspacing time parameter information to initiate a random access process in a frequency spectrum switch process. According to the random access method, due to the fact that the random access backspacing time parameter information is carried in the frequency spectrum switch command, the conflict of random access is inhibited in the frequency spectrum switch process of a CR system, a large amount of user equipment (UE) which intensively conducts random access on a target work frequency point is dispersed in time in advance, the failure probability and delay of random access on the target work frequency point in the frequency spectrum switch process are lowered, and further more, the failure probability frequency spectrum switch and service break period are lowered, and the user experience of the CR system is improved.
Owner:DATANG MOBILE COMM EQUIP CO LTD
Method and apparatus detecting failure of micro-engine
InactiveCN101309184ARecoveryFault detection and recovery in timeError detection/correctionData switching networksProcessor registerData acquisition
The invention embodiment relates to a method and a device used for detecting the fault of a micro-engine; wherein, the method of detecting the fault of the micro-engine includes that the value of thread counter of each thread of the micro-engine and the value of the event signal of each thread of the micro-engine are acquired in at least every data acquisition period; the values acquired at least in two times are compared if the values are equal to each other; whether the micro-engine fault emerges or not in the network processing chip is determined according to the comparison result. The method and the device used for detecting the fault of a micro-engine can discover and recover the micro-engine fault in the network processing chip in time and determine the state of the micro-engine through the mode of combining the thread counter information with the control state register information so that the register addition realized by programs is greatly reduced; thereby, the efficiency of the micro-engine is improved.
Owner:HUAWEI TECH CO LTD
Forwarding engine state detecting method and route device
InactiveCN1866909AIncreased hardware design complexityReduce business downtimeTransmissionEmbedded systemManagement system
The invention relates to a method for detecting the condition of transfer engine and relative route device. It is characterized in that: the transfer engine, based received predefined frame of other transfer engines, fixes the conditions of other engines. The invention can make the transfer engine directly and quickly detect the conditions of other transfer engines, without increasing hardware wires and the hardware complexity; to avoid the process that the route process / manage system informs other transfer engines about the abnormal condition of one transfer engine, to reduce the detecting time. The invention can be used in quick re-route technique, to effectively reduce the service interrupt time caused by the failure of transfer engine, to reduce the detecting cost and improve the transmission reliability.
Owner:HUAWEI TECH CO LTD
Redirection method and apparatus for terminal
Owner:HUAWEI TECH CO LTD
Quick main and standby switching control method
ActiveCN104468210ARealize switchingReduce business downtimeError preventionData switching networksElectricitySingle plate
The invention discloses a quick main and standby switching control method, and belongs to the technical field of communications. The control method comprises the steps that after electrified hardware is reset, two single boards are in real-time communication to acquire the state information of the single boards; after the single boards control a register to feed a dog, the single boards start competing; if the state of a main and standby state register of the current single board is changed, an interrupt pulse signal is generated to inform a CPU and the opposite single board, the opposite single board collects communication information and judges to adopt the corresponding main and standby switching processing mode. According to the method, main and standby switch can be quickly achieved, and the service suspension phenomenon caused by slow switching is reduced.
Owner:NAT COMP NETWORK & INFORMATION SECURITY MANAGEMENT CENT +1
Dual connection measurement configuration method, measurement method, scheduling method and device, storage medium, base station, and terminal
ActiveCN109246846AReduce business downtimeSmall structural changesConnection managementOrthogonal multiplexComputer hardwareNetwork measurement
The invention discloses a dual connection measurement configuration method, a measurement method, a scheduling method and device, a storage medium, a base station, and a terminal. The measurement configuration method includes the steps: transmitting a main network measurement configuration and a candidate secondary network measurement configuration to user equipment after establishing a main network connection with the user equipment; selecting a secondary base station according to a secondary network measurement report fed back by the user equipment, and determining the first measurement configuration of a secondary network for the secondary base station, and enabling the main station to complete a candidate secondary network measurement gap required by the main base station to complete the first measurement configuration of the secondary network; transmitting a dual connection configuration request to the secondary base station; receiving the secondary measurement configuration of the secondary network configured by the secondary base station and the secondary network measurement gap required in the measurement of the second measurement configuration of the secondary network. According to the technical solution provided by the invention, the method can complete the NR measurement task in a short service interruption time period, and does not need to change an LTE baseband circuit.
Owner:SPREADTRUM COMM (SHANGHAI) CO LTD
CR-system-based method and device for converting frequency spectrums
ActiveCN103491583AAvoid Random Access CollisionsReduce business downtimeSynchronisation arrangementFrequency spectrumTerminal equipment
The invention discloses a CR-system-based method and device for converting frequency spectrums. The method comprises the steps that a base station device and a terminal device maintain uplink synchronization on source working frequency points before the frequency spectrums are converted; when restoring a cell on target working frequency points, the base station device judges whether the uplink synchronization is maintained between itself and the terminal device or not, and if yes, the base station device allocates uplink resources for the terminal device on the target working frequency points and sends the uplink resources allocated to the terminal device on the target working frequency points, wherein the uplink resources are used for allowing the terminal device to send a frequency spectrum converting completion message, and the frequency spectrum converting completion message is used for indicating that the terminal device already completes the converting process of the frequency spectrums successfully. According to the embodiment, due to the fact that the process of random access is omitted in the converting process of the frequency spectrums, the conflict over the random access in the converting process of the frequency spectrums of a CR system is avoided, the failure probability of frequency spectrum converting of the CR system is lowered, the service break periods of the CR system are shortened, and the UE of the CR system is improved.
Owner:DATANG MOBILE COMM EQUIP CO LTD
Method, system and equipment for switching operating frequency of cells
ActiveCN102572975AAvoid Random Access CollisionsReduce business downtimeWireless communicationRandom accessOperating frequency
The embodiment of the invention discloses a method, system and equipment for switching operating frequency of cells. The method comprises the following steps: a command which carries switching time T2 and used for switching to a new operating frequency is received by user equipment (UE); and from T2, the UE operates at the new operating frequency directly without fulfilling a random access process. The system consists of a base station and the UE. The base station sends the command which carries switching time T2 and used for switching to the new operating frequency to the UE and the UE receives the command for switching to the new operating frequency and operates at the new operating frequency directly from T2 without fulfilling the random access process. By adopting the method, the system and the equipment, the UE is capable of rapidly accessing a new operating frequency without random access conflict and business disruption time of the UE is reduced to the greatest extent.
Owner:CHINA MOBILE COMM GRP CO LTD
Method for dual-PON port ONU to register and manage protocol stack at OLT
InactiveCN104980432AReduce business downtimeEfficient managementElectromagnetic transmissionData switching networksEmbedded systemProtocol stack
The invention provides a method for dual-PON port ONU to register and manage a protocol stack at OLT. The method comprises the steps as follows: binding pre-configuration of dual-PON port ONU located on the OLT on the OLT; electrifying, registering, recognizing and transmitting configuration on the dual-PON port ONU on the OLT, and switching and managing the dual-PON port ONU on the OLT. The method provided by the invention could protocol and modularize the registration and management of the dual-PON port ONU on the OLT. In terms of an application program, the method could realize efficient management of API, that is efficient management of the dual-PON port ONU on the OLT with the called default call APP.
Owner:SHENZHEN TWOWING TECH
Method and device for reducing service interruption time
InactiveCN101106441AAvoid long interruptionsAvoid failureError preventionTransmission monitoringComputer scienceTriggering device
The embodiment in the invention discloses a method for reducing the service interruption time. When equipment can not be normally started due to faults, determine whether the faults are caused by ECC memory of the equipment or not, if yes, shut down the operation of the ECC memory; trigger the equipment to restart and thereby recover service operations after starting. Meanwhile, the embodiment in the invention also discloses a method and means for testing faults of ECC memory of the equipment. When the equipment is broken down, the invention can timely shut down the broken ECC memory tested, thereby allow the equipment to recover service operations after being restarted. Avoid a long interruption of equipment services, and reduce the service interruption time of equipment.
Owner:CHANGZHOU XIAOGUO INFORMATION SERVICES
Cross-platform virtual machine online migration method and related components
InactiveCN110737512ADoes not affect normal operationAvoid threatsSoftware simulation/interpretation/emulationSoftware engineeringShut down
According to the cross-platform virtual machine online migration method disclosed by the invention, an agent program does not need to be installed in the virtual machine, so that the threat to the disk file caused by illegal utilization of the agent program in the virtual machine is avoided, and the security of the disk file is guaranteed; and meanwhile, in the execution process of the cross-platform virtual machine online migration method, the cross-platform virtual machine online migration method firstly reads disk data in the virtual machine to be migrated and writes the disk data into a new platform while the normal operation of the virtual machine is not influenced in the data reading and writing process, so that the virtual machine migration is executed under the condition that the virtual machine is not shut down, and the virtual machine to be migrated is controlled to pause after the disk change data relative to the disk data in the running process of the virtual machine to bemigrated is determined, and the service pause time is equivalent to the write-in time of the disk change data, so that the service pause time of the virtual machine is greatly shortened, and the running continuity of a running service application can be effectively ensured. The invention furthermore provides a cross-platform virtual machine online migration device, equipment, and a readable storage medium, which have the above beneficial effects.
Owner:北京浪潮数据技术有限公司
Management system for disaster-tolerant all-in-one machine
InactiveCN103209218AReduce downtimeReduce business downtimeData switching networksFault toleranceVirtualization
The invention provides a management system for a disaster-tolerant all-in-one machine. The management system comprises an online server cluster, a fault-tolerant server cluster, cluster virtual switches and distributed virtual switches. The online server cluster is a cluster composed of a plurality of physical servers through a network and is used for guaranteeing fault recovery of servers; and a management platform of the disaster-tolerant all-in-one machine is arranged on physical servers of the fault-tolerant server cluster which is used for guaranteeing normal operations of the online server cluster; the cluster virtual switches combine all online virtual machine units through the management platform of the disaster-tolerant all-in-one machine into a local area network among the server clusters; and the distributed virtual switches are formed by a plurality of vertical switch units in the disaster-tolerant all-in-one machine and used for connection the virtual machines of all the server clusters. By means of the management system, the problems of low-cost virtualization and the incapability to support fault-tolerance are solved, so that medium-sized and small enterprises can well accept the virtualization platform technology. 'Zero' downtime of server maintenance is truly achieved, and the working efficiency of information technology (IT) administrative staff is improved.
Owner:SHENZHEN JINGCLOUD TECH
Method and device for disaster recovery backup facing emergency replacement
InactiveCN106445746ADisaster recovery time is shortReduce business downtimeRedundant operation error correctionApplication softwareObject server
The embodiment of the invention discloses a method and device for disaster recovery backup facing emergency replacement. The method comprises the steps of receiving disk contents stored in an object server, processing the disk contents to be a disk mirrored volume format file, and generating a snapshot for the disk mirrored volume format file; if it is determined and learnt that the object server is subjected to service disasters, performing switching to an emergency replacement mode, starting the disk mirrored volume format file, and replacing the object server to operate an application program in the disk mirrored volume format file. By processing the disk contents stored in the object server to be the disk mirrored volume format file and then generating the snapshot, when the object server is subjected to the service disasters, switching is directly performed to the emergency replacement mode, the disk mirrored volume format file is started, and the object server is replaced to operate the application program in the disk mirrored volume format file. The disaster recovery time is short, the service interruption time is remarkably reduced, and the investment and maintenance difficulty is reduced.
Owner:BEIJING ZHIWANG SCI & TECH
Big data-based cloud platform log management system
PendingCN112416872AMeet the exchangeSatisfy handlingPlatform integrity maintainanceMachine learningLog managementMaintenance management
The invention belongs to the technical field of big data, and discloses a big data-based cloud platform log management system, which comprises a log collection module used for analyzing and mining logpractices through a distributed multi-task method; a log preprocessing module is used for filtering log events and merging similar events through an auditing strategy, and sending the log events andthe similar events to the real-time detection module and the database system respectively; the database system is used for storing the log events sent by the log preprocessing module; the real-time detection module is used for auditing the processed log event and responding to an auditing result according to a response strategy; and the log analysis module is used for analyzing historical data inthe database system and displaying an analysis result through a chart according to user settings. According to the invention, the working efficiency of operation and maintenance personnel in the operation and maintenance management process and the perception ability of the safety situation can be improved.
Owner:SHANXI TISCO INFORMATION & AUTOMATION TECH CO LTD
Communication method and communication system
ActiveCN102740176AReduce business downtimeReduce downtimeMultiplex system selection arrangementsPonsReal-time computing
The embodiment of the invention discloses a communication method and a communication system which are applied in the technical field of communication. The communication method comprises the following steps that: a main passive optical network (PON) port sends a sampling main round-trip delay request to at least one optical network unit (ONU), and the local time of the main PON port is marked as a first main local time when a time mark fed back by the ONU is received; a standby PON port acquires the first main local time and the time mark fed back by the ONU to acquire a main round-trip delay, and the local time of the standby PON port is marked as a first standby local time when the time mark is acquired; the standby PON port calculates delay differences according to the first standby local time and the first main local time, and calculates the standby round-trip delay according to the delay differences and the main round-trip delay; and when the main PON port detects that a link is abnormal, the standby PON port communicates with the ONU according to the standby round-trip delay. The communication method and the communication system can ensure that the service interruption time is significantly reduced.
Owner:HUAWEI TECH CO LTD
Fault detection and recovery method and system
ActiveCN103957130AReduce business downtimeReduce labor input costsData switching networksModularitySetting time
The invention relates to modularized communication network equipment and discloses a fault detection and recovery method and system. The fault detection and recovery method includes the steps that (a) a first identifier is written into a first register, and a second identifier is written into a second register; (1b) the first identifier in the first register is detected; (1c) whether the first identifier changes is judged, wherein it shows that a daughter card fails if the first identifier changes, then the step 1d is carried out, and otherwise, the step 1b is executed again after a set time is due; (1d) uninstalling and reloading are executed on the daughter card; (2b) the second identifier in the second register is detected; (2c) whether the second identifier changes is judged, wherein it shows that the daughter card fails if the second identifier changes, then the step 2d is carried out, and otherwise, the step 2b is executed again after a set time is due. The steps from 1b to 1d and the steps from 2b to 2d are executed in parallel or one after another. The invention further discloses the fault detection and recovery system. Through the fault detection and recovery method and system, the time of service interruption affected by a fault is shortened, and the investment cost of manpower is reduced.
Owner:MAIPU COMM TECH CO LTD
Active set management method and wireless network controller
InactiveCN102938915AImprove service qualityReduce business downtimeConnection managementTelecommunicationsWireless LAN controller
The invention relates to an active set management method and a wireless network controller. Links using ordinary or strengthening fractional-dedicated physical channels (F-DPCH) are built through a service radio network controller (RNC) and a user device. The method comprises that a target community which supports an ordinary or strengthening F-DPCH in communities of which the quality of the channels meets the requirement, which are managed by a drift RNC which is detected is chosen by the service RNC; and the service RNC instructs the drift RNC to build corresponding channels according to corresponding links of target communities. According to the method and the wireless network controller, the service interruption time is reduced and the handling capacity is increased.
Owner:ZTE CORP
Dual-connection measurement configuration method, measurement method, scheduling method and device, storage medium, base station and terminal
ActiveCN110381530AReduce business downtimeSmall structural changesConnection managementOrthogonal multiplexNetwork connectionNetwork measurement
Owner:SPREADTRUM COMM (SHANGHAI) CO LTD
Data transmission method and data transmission device for special two-layer virtual network
Embodiments of the present invention provide a data transmission method and device for a Layer 2 virtual private network. The method is applied to a network including a primary virtual link and a backup virtual link carried by traffic engineering. The primary virtual link passes through An upstream node and a downstream node, the method includes: the upstream node detects the connection status of the communication link to be protected between the upstream node and the downstream node, and determines whether the communication link to be protected fails; if the communication link to be protected fails, Then the upstream node performs traffic engineering fast rerouting switching, and switches the data transmission to the pre-established standby label switching channel for protecting the communication link to be protected; the upstream node triggers virtual link switching. In the embodiment of the present invention, when a link fails, local protection is performed through traffic engineering fast rerouting first, and then the virtual link is smoothly switched, thereby improving the speed of fault detection and traffic switching, and reducing the time when a link fails. business interruption time.
Owner:HUAWEI TECH CO LTD
A Spectrum Handover Method and Device Based on Cognitive Radio System
ActiveCN103491583BAvoid Random Access CollisionsReduce business downtimeSynchronisation arrangementFrequency spectrumTerminal equipment
The invention discloses a spectrum switching method and device based on a cognitive radio system. The method includes: before spectrum switching, the base station equipment and the terminal equipment maintain uplink synchronization at the source working frequency point; when the base station equipment is at the target working frequency point, After the cell is restored, it determines whether uplink synchronization is maintained between itself and the terminal device; if so, allocates uplink resources to the terminal device on the target operating frequency point, and sends the allocated uplink resources to the terminal device on the target operating frequency point; where , the uplink resource is used to enable the terminal device to send a spectrum switching completion message indicating that the terminal device has successfully completed the spectrum switching process. In the embodiment of the present invention, the random access process is omitted during the spectrum switching process to avoid random access conflicts during the spectrum switching process of the CR system, reduce the spectrum switching failure probability and service interruption time of the CR system, and improve the user experience of the CR system.
Owner:DATANG MOBILE COMM EQUIP CO LTD
A device and method for implementing linear protection switching
This paper discloses a device and method for implementing linear protection switching, which are applied to devices configured with protection groups; the device for implementing the device includes: a fault detection chip, which is used to generate a management message after detecting a link fault in the protection group, and Sending a management message to the service forwarding chip; the service forwarding chip is used to set the switching identification value of the protection group according to the received management message. The device and method for implementing linear protection switching provided in this paper can realize the function of fast switching of services at the hardware layer, thereby improving the performance of protection switching and enhancing the stability of equipment.
Owner:RAISECOM TECH
Hardware-based protection group switching method and optical communication equipment
ActiveCN108462904BImprove survivabilityReduce business downtimeMultiplex system selection arrangementsTime-division multiplexComputer hardwareService flow
In the hardware-based protection group switching method and optical communication equipment of the present invention, when the FPGA in the equipment detects the switching trigger information indicating that the local network element may have a switching triggering situation, it transmits it to each protection state machine through the hardware bus; each protection state The machine determines one or more relevant protection groups that may be affected by each switching trigger situation according to the relevant service flow information, and generates each corresponding switching trigger condition according to each switching trigger information; the protection state machine corresponding to the relevant protection group respectively prestores the table Query the operation results of the automatic protection switching protocol; update the cross table according to the operation results, and configure the updated cross table to the cross chip or packet switching chip through FPGA; realize the protocol algorithm of protection switching on the hardware and can process multiple groups of protection in parallel Switching reduces the service interruption time caused by batch switching, improves the performance of multi-group protection switching, and increases the survivability of the network.
Owner:SHANGHAI SINO TELECOM TECH
Method for managing high-availability cluster resources
InactiveCN104636208AReduce resource switching timeReduce business downtimeResource allocationAVL treeResource management
The invention discloses a method for managing high-availability cluster resources and relates to the field of high-availability cluster software. In high-availability cluster resource management, a two-stage AVL tree is used to manage groups and group resources in clusters, an original linked list management mode is replaced; the incidence relations of the groups and the group resources are established through the two-stage AVL tree; and the incidence relations of the groups and the group resources are clear. The resources are managed through the AVL tree, the resource switching time is reduced, the service interruption time is shortened, and the competitiveness of high-availability cluster products is improved.
Owner:LANGCHAO ELECTRONIC INFORMATION IND CO LTD
Quick recovery method and system for failure of multiple connection nodes in communication system
ActiveCN112616194AReduce business downtimeImprove experienceConnection managementEngineeringReal-time computing
The invention provides a quick recovery method and system for failure of multiple connection nodes in a communication system. The method comprises the following steps of: 1, requesting an auxiliary node base station to establish a signaling radio bearer SRB3 for a terminal, packaging switching preparation information and sending the switching preparation information to an auxiliary node; 2, performing link state detection between the main node and the auxiliary node through a flow control transmission protocol SCTP; 3, enabling the terminal to perform wireless link failure detection on the main node according to an out-of-step detection mechanism of a main node physical layer; 4, when detecting that the main node fails, starting switching for the auxiliary node, and enabling the auxiliary node base station to carry switching preparation information and a packaging switching instruction on the SRB3 and send the switching preparation information and the packaging switching instruction to the terminal; and 5, after the terminal receives the packaging switching instruction, changing the auxiliary node into the main node. According to the invention, when a certain base station node fails, the terminal can quickly switch the control plane and the user plane to the non-failed nodes, so that the robustness of the system is improved, the service interruption time of a user is reduced, and the user experience is improved.
Owner:上海微波技术研究所(中国电子科技集团公司第五十研究所)
A Spectrum Handover Method and Device Based on Cognitive Radio System
ActiveCN103491548BReduce business downtimeImprove experienceSynchronisation arrangementNetwork planningSuccessful completionFrequency spectrum
The invention discloses a spectrum switching method and equipment based on a cognitive radio system. The method includes: before the spectrum switching, the terminal equipment and the base station equipment maintain uplink synchronization at the source operating frequency point; the terminal equipment and the base station equipment maintain uplink synchronization; The device agrees on the uplink resources on the target operating frequency; or, the terminal device receives the uplink resources on the target operating frequency allocated by the base station device for the terminal device at the source operating frequency; the terminal device After searching for the target operating frequency point, it is judged whether uplink synchronization is maintained between itself and the base station equipment; if so, the terminal equipment uses the uplink resource to send a message indicating that the terminal equipment has Spectrum handoff complete message for successful completion of the spectrum handover process. In the embodiment of the present invention, the frequency spectrum switching failure probability and service interruption time of the CR system are reduced, and the user experience of the CR system is improved.
Owner:DATANG MOBILE COMM EQUIP CO LTD
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