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132results about How to "Avoid switching failures" patented technology
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Selection method, system and device for switching candidate target cells
The embodiment of the invention discloses a selection method for switching candidate target cells, which comprises the following steps: a base station receives a measuring report message transmitted by a terminal and carrying a sign of entering a cell edge, and saves the corresponding relation between an adjacent cell identification carried in the measuring report message and the signal intensity value; and after the base station determines to carry out cell switching on the terminal, according to the corresponding relation, the adjacent cell identification corresponding to the signal intensity meeting a preset switching threshold is determined, and the adjacent cell corresponding to the adjacent cell identification is selected as a candidate target cell for switching the terminal. The embodiment of the invention also discloses a selection system and device for switching the candidate target cells. The invention can improve the possibility of selecting the best candidate target cell when the terminal carries out cell switching and reduce the probability of switching failure.
Owner:DATANG MOBILE COMM EQUIP CO LTD
Method, system and device for switching between networks
ActiveCN101272602AAvoid switching failuresImprove business qualityRadio/inductive link selection arrangementsService qualityNetwork element
Owner:XFUSION DIGITAL TECH CO LTD
Reducing resource allocations for inter-technology handover between wireless communication networks
InactiveUS20110176511A1Reduce resource allocationAvoid switching failuresNetwork topologiesConnection managementMobile stationHandover
Disclosed is a method for reducing resource allocations for inter-technology handover between heterogeneous wireless communication networks. The method includes a first step of completing network entry and new session registration procedures for a mobile station with a handover target technology network. A next step includes defining an activity mode of the new session. A next step includes waiting for the expiration of a resource timer at the target network. A next step includes assigning the resources for the new session upon the expiration of the timer.
Owner:MOTOROLA MOBILITY LLC
Measurement capability reporting method, configuration methods, user equipment and base station
InactiveCN108366379AGuaranteed flexibilityAvoid the problem of configuring the measurement interval twiceWireless communicationRadio access technologyFrequency measurements
The invention provides a measurement capability reporting method performed at UE (User Equipment). The method comprises the steps of generating and reporting UE measurement capability information based on a UE radio frequency link grouping relationship to a base station, as a reference for the base station to configure measurement gap configuration information for the UE; receiving the measurementgap configuration information for the UE from the base station, and receiving band or carrier aggregation (CA) band combination configuration information for the UE from the base station; and determining band or CA band combination configured for the UE by the base station according to the received band or carrier aggregation (CA) band combination configuration information for the UE, and for theband or CA band combination configured for the UE by the base station, carrying out inter-frequency measurement and / or inter-radio access technology measurement on a measurement gap appointed in thereceived measurement gap configuration information. The invention also provides a measurement gap configuration method performed at the base station, a measurement gap demand updating method performedat the UE, an updated measurement gap configuration method performed at the base station, and the corresponding user equipment and base station.
Owner:BEIJING SAMSUNG TELECOM R&D CENT +1
Method, device and system for updating wireless capability
InactiveCN101730058AAvoid switching failuresAssess restrictionNetwork data managementUser equipmentWireless
The embodiment of the invention discloses a method for updating a wireless capability, which comprises the following steps of: informing a mobile management entity (MME) that the GERAN / UTRAN capability of user equipment (UE) changes according to a non access layer (NAS) message sent by the UE which is in a connection state, initiating a process for inquiring the wireless capability of the UE according to an instruction for inquiring a user capability sent by the MME, and forwarding a wireless capability message sent by the UE to the MME so that the UE which is in the connection state can timely inform the MME to acquire a new wireless capability of the UE when the GERAN / UTRAN capability of the UE which is in the connection state changes and avoid a failure for Inter-RAT switching. The invention also provides a device for updating the wireless capability.
Owner:HUAWEI TECH CO LTD
Method of High-efficiency Connected Mode Cell Re-selection
InactiveUS20170055192A1Easy to moveReduce signaling overheadConnection managementSignal qualityHandover
A novel and efficient connected mode cell reselection procedure is proposed to improve the mobility performance for user equipments (UEs) configured with extended connected mode Discontinuous Reception (DRX) cycle in LTE systems. A UE-centric mobility mechanism with which a UE performs cell reselection in RRC connected mode is proposed. The UE is allowed to select a target cell without handover signaling in the source cell and when needed to initiate signaling with the target cell, for which signal quality is much better. In this way, handover failures due to failed signaling in the source cell can be avoided. More specifically, the proposed mobility mechanism reduces signaling overhead and is inherently robust towards different DRX cycle settings, i.e., longer DRX cycles do not cause more failures, or more overhead, or more battery consumption.
Owner:HFI INNOVATION INC
Method for avoiding handover failure
ActiveUS20130010754A1Avoiding handover failureAvoiding excessive resource wasteConnection managementWireless commuication servicesUser equipmentHandover
Methods for avoiding handover failure are provided. The method includes determining, by a source Base Station (BS), to perform a handover of a User Equipment (UE); determining, by the source BS, whether a target BS connects with a user plane node serving the UE at the source BS; and releasing resources, when the target BS does not connect with the user plane node serving the UE at the source BS.
Owner:SAMSUNG ELECTRONICS CO LTD
Method, system and equipment of selecting target cell
The embodiment of the invention discloses a method, system and equipment of selecting a target cell, which relates to the technical field of wireless communication and is used for solving the problem that a donor base station selects the target cell to which the relay node is not allowed to access for the relay node, so as to cause failed switch. In the invention, operation and maintenance (OAM) equipment allocates the donor attribute information of the base station to the base station; the base station sends the obtained donor attribute information to other base stations adjacent to the basestation; and the donor base station determines a donor cell to which the relay node is allowed to access according to the received donor attribute information and sends the information of the determined donor cell to the relay node, the relay node only reports the measurement information of the donor cell, and the donor base station selects the target cell performing cell switch for the relay node according to the measurement information reported by the relay node. According to the invention, the problem that the donor base station selects the target cell to which the relay node is not allowed to access for the relay node so as to cause the failed switch is avoided.
Owner:DATANG MOBILE COMM EQUIP CO LTD
Method for scheduling system resource
InactiveCN101047622AReduce wasteImprove the speed of packet switchingNetwork traffic/resource managementRadio/inductive link selection arrangementsStart up timeDistributed computing
A method for dispatching resource of system includes informing MS the start-up time of uplink dispatch in packet switching-over process after resource is distributed and pre-reserved for MS by object BSS, sending uplink information to object BSS by MS after start-up time of uplink dispatch is up in order to make MS service resource be synchronized with object BSS dispatch resource.
Owner:GLOBAL INNOVATION AGGREGATORS LLC
Apparatus and method for supporting handover to csg cell or hybrid cell
ActiveUS20150072686A1Avoid switching failuresEnsure continuityNetwork topologiesAccess networkCommunications system
The present invention discloses a method for supporting a handover to a closed subscriber group (CSG) cell or a hybrid cell in a mobile communication system, and the method includes: sending, by a radio access network (RAN), information indicating that authorized public land mobile network (PLMN) information changes to a user equipment (UE); sending, by the UE, all PLMN identifiers (IDs) broadcasted by a target CSG cell to a source RAN in a measurement report; and selecting, by the source RAN or a source core network(CN), a target PLMN for the UE.
Owner:SAMSUNG ELECTRONICS CO LTD
Input interface switching method and input interface switching device
ActiveCN102902471AReduce operating restrictionsIncrease success rateInput/output processes for data processingTouchscreen
Owner:CHINA MOBILE COMM GRP CO LTD
A spatial diversity scheme in communication systems of beamforming
ActiveCN106465375AData augmentationIncrease signalingOrganic chemistryCode division multiplexSmall cellDiversity scheme
A method of providing spatial diversity for critical data delivery in a beamformed mmWave small cell is proposed. The proposed spatial diversity scheme offers duplicate or incremental data / signal transmission and reception by using multiple different beams for the same source and destination. The proposed spatial diversity scheme can be combined with other diversity schemes in time, frequency, and code, etc. for the same purpose. In addition, the proposed spatial diversity scheme combines the physical-layer resources associated with the beams with other resources of the same or different protocol layers. By spatial signaling repetition to avoid Radio Link Failure (RLF) and Handover Failure (HOF), mobility robustness can be enhanced. Mission-critical and / or time-critical data delivery can also be achieved without relying on retransmission.
Owner:HFI INNOVATION INC
A kind of handover method and equipment based on mbms service
ActiveCN102291688AGuaranteed continuityAvoid switching failuresNetwork traffic/resource managementBroadcast service distributionCore networkMultimedia Broadcast Multicast Service
The invention discloses a switching method and equipment based on an MBMS (multimedia broadcast multicast service). The method comprises the following steps that: when UE (user equipment) needs to be switched to a target base station from a source base station, if the source base station determines that the priority level of the MBMS of the UE is higher than unicast, and furthermore, the UE cannot be switched to a target cell of an MBMS frequency where the MBMS is in, wherein the UE is interested in the MBMS, the source base station releases the UE and notifies the UE and / or core network equipment that the releasing reason is that the continuity of the MBMS cannot be guaranteed. In the embodiment, when the MBMS frequency of the target base station congests, the continuity of the MBMS can be guaranteed furthest; the switching failure is avoided; and the user experience is enhanced.
Owner:DATANG MOBILE COMM EQUIP CO LTD
Adjacent cell handover method, equipment and system
ActiveCN103442402AImprove communication qualityAvoid switching failuresWireless communicationSignal qualityHeterogeneous network
The invention discloses an adjacent cell handover method, equipment and a system. The method comprises the steps that after a terminal is handed over to a target cell, a public frequency point configured to the target cell serves the terminal and receives measured identification, of an RRU position group in the target cell, reported by the terminal, and a measured signal quality value of the corresponding RRU position group, the identification of the first RRU position group with the measured signal quality value larger than a set threshold value is determined according to the measured signal quality value, the terminal is handed over to a determined dedicated frequency point of the first RRU position group from the public frequency point of the target cell, the dedicated frequency point serves the terminal, and after the terminal is handed over to the target cell, the public frequency point of the target cell is utilized as a handover medium to execute the handover operation. Thus, the problem that handover fails when the terminal is directly handed over to a certain RRU position group is avoided, and the handover success rate of the terminal in the heterogeneous network system is improved.
Owner:COMBA TELECOM SYST CHINA LTD
Mobile communication system and method for switching to closed user group cell
InactiveCN102104920AAvoid switching failuresImprove reliabilityAssess restrictionUser groupClosed User Group
The invention discloses a mobile communication system and a method for switching to a closed user group cell. In the communication system, a source base station sends a first message to a core network, and the first message carries access control request information; the core network carries out access control on corresponding user equipment according to the access control request information and replies an access control result to the source base station through a second message, and the second message carries access control result information; and when the source base station starts switching from the user equipment to the closed user group cell, the source base station selects a target closed user group cell for the user equipment according to the access control result and then starts cell switching of the user equipment to the selected target closed user group cell. In the invention, before the switching is started in the source base station, the access control is carried out on the user equipment to be switched, and then switching is started according to the access control result, thereby a switching failure caused by an access control failure can be avoided, and the reliability and the speed of switching can be improved greatly.
Owner:ZTE CORP
Directional switching method and apparatus
ActiveCN109640250AShort switching timeAvoid dropped callsParticular environment based servicesFor mass transport vehiclesSwitching timeHigh-motion
The invention provides a directional switching method and apparatus, and relates to the field of communication. Directional switching is performed on a terminal. The method comprises the following steps: when the motion speed of the terminal is greater than a preset threshold, the terminal obtains a motion direction of the terminal; the terminal determines multiple neighboring cells of a primary serving cell on the motion direction; the terminal determines an active set and a monitoring set from the multiple neighboring cells, and establishes a connection with the cells in the active set; theterminal reports a switching event to a first network device; the terminal performs an update indication determined by the first network device according to the switching event; and the terminal establishes a connection with the updated primary serving cell and / or the cells in the updated active set. Therefore, by adoption of the directional switching method provided by the invention, the switching time of the terminal between different cells is shortened, and switching failure and call drop events of the terminal in a high-speed motion scene are avoided.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD +1
Method, device and system for maintaining loading
ActiveCN101626611AAvoid Update Bearer FailuresAvoid network switching failure problemsWireless communicationService gatewayFailure causes
The embodiment of the invention discloses a method for maintaining loading. According to the method, when user equipment is switched to a 3GPP access network from a non-third generation partner planned (Non-3GPP) access network, a new loading ID allocated through a uniform mobile management entity (MME) and a former loading ID allocated through a former service gateway (SGW) when the Non-3GPP access network is accessed to a 3GPP core network ensure that loading maintenance and use can be carried out according to a uniform loading ID; therefore, problems including update loading failure and network switching failure caused by different loading IDs allocated when user equipment is switched to the 3GPP access network from the Non-3GPP access network can be avoided. The invention also discloses a device and a system for maintaining loading.
Owner:HUAWEI TECH CO LTD
Inter-RAT switching method and apparatus
The invention discloses an inter-RAT switching method and apparatus. The method includes the following steps: a base station determines a terminal which is to be inter-RAT switched; if the terminal is provided with a bearing which is intended for transmitting VOLTE data, and no VOLTE voice conversation has been conducted through the bearing, then no inter-RAT switching is conducted on the terminal for the moment, and if the VOLTE voice conversation by the terminal through the bearing is detected, inter-RAT switching is conducted on the terminal. According to the invention, the method and the apparatus can prevent failure of switching caused by voice call of the VOLTE which is generated simultaneously with the inter-RAT switching.
Owner:DATANG MOBILE COMM EQUIP CO LTD
Reducing resource allocations for inter-technology handover between wireless communication networks
InactiveCN102131265AAvoid switching failuresNetwork topologiesConnection managementTelecommunicationsMobile station
Owner:MOTOROLA MOBILITY LLC
Method and system for realizing rapid switching in communication network
InactiveCN102917421ASpend less timeAvoid lossWireless communicationCommunications systemGlobal Positioning System
The invention provides a method for realizing rapid switching; and the method comprises the steps as follows: (a) a mobile terminal is used for periodically measuring signal intensities of a service base station and a neighbor base station; when the signal intensity of one neighbor base station satisfies a switching condition, the terminal is used for setting the base station as a target base station to be switched; (b) the mobile terminal is used for applying to the target base station for special resources for switching through the service base station and is used for obtaining GPS (Global Positioning System) information of the target base station and public channel resources; (c) the mobile terminal is used for calculating uplink timing advance between the mobile terminal and the target base station according to the GPS information of the target base station; and (d) the mobile terminal is used for directly accessing the target base station into special resources for switching according to the uplink timing advance so as to finish switching operation. The invention further discloses a system for realizing rapid switching. According to the invention, on the basis that the switching reliability is guaranteed, the time spent in the switching process can be effectively reduced so as to satisfy switching delaying requirements in a communication system.
Owner:BEIJING XINWEI TELECOM TECH
Communication method and equipment
ActiveCN109600800AAvoid switching failuresImprove the success rate of switchingWireless communicationCommunications systemComputer science
The embodiment of the invention provides a communication method and communication equipment. The communication method comprises the following steps that a first device sends a switching request message to a second device, and receives a switching confirmation message returned by the second device, wherein the switching confirmation message carries general system information of the second device; the first device sends a switching instruction to a terminal, wherein the switching instruction comprises general system information of the second device; and the first device sends a second message tothe terminal according to the first message, wherein the first message is sent by the second device, and the first message is used for indicating the change of the general system information of the second device, so that the terminal obtains the changed communication system information of the second device according to the second message. According to the embodiment of the invention, a switchingfailure can be avoided, and the switching success rate is improved.
Owner:HUAWEI TECH CO LTD
Method for realizing service switching between different networks and device therefor
ActiveCN101772117AJudging and optimizing the switching processReduce switching delayWireless communicationTelecommunicationsSwitching time
The invention relates to a method for realizing service switching between different networks and a device therefor, wherein the method comprises: acquiring PS HO capability information of adjacent GERAN districts; and realizing the switching according to the district type and the PS HO capability of a target system of a CS voice service when the CS voice service initiated by a UE is received. With the adoption of the method and the device, by acquiring the PS HO capability information containing supporting PS HO and non-supporting PS HO of the adjacent GERAN districts and then by receiving the CS voice service when the UE initiates the CS voice service under the Active state, the switched flows can be determined according to the district type and the PS HO capability of the target system of the service, so as to effectively judge and optimize the switching process, reduce the switching time-delay and avoid the switching failure.
Owner:DATANG MOBILE COMM EQUIP CO LTD
The method to avoid the handover request being rejected after joining the relay in LTE-A
InactiveCN102281598APrevent rejectionAvoid switching failuresAssess restrictionSignal strengthHandover
The invention discloses a method for avoiding a handover request from being rejected after adding a relay in LTE-A. The method is as follows: before sending a handover request, a source RN node obtains the load conditions of the cells where each candidate destination RN node is located by adding signaling and backhaul link conditions, and then comprehensively consider the load conditions, backhaul link conditions, or / and the signal strength of the cell where each candidate target RN node is measured by the user to select an appropriate target RN node to initiate a handover request. The invention avoids the rejection of the switching request or the switching failure by using the information such as the AC load and the channel condition before the switching, and reduces the switching delay.
Owner:SHANGHAI RES CENT FOR WIRELESS COMM
Smart control method for transformer cooler
InactiveCN106094930ARealize switching controlReduce the temperatureTransformers/inductances coolingTemperatue controlControl signalEngineering
The invention discloses a smart control method for a transformer cooler. The method includes the steps of obtaining the real-time temperature T of a winding of a transformer, setting the constant operation temperature value of the transformer, a control unit determining the cooler control strategy according to the real-time temperature T and the temperature changing rate DT / Dt, and outputting a control signal to the transformer cooler according to the strategy. The working of the transformer cooler can be controlled timely and effectively to lower the temperature of a transformer, prevent the transformer from being damaged, and prolong the service lifetime of the transformer. Switching of the cooler set of a cooler can be conducted to prevent frequent switching of cooler sets and prevent switches from being damaged. Stable operation of an entire cooler is ensured, and the transformer operates more stable.
Owner:STATE GRID EAST INNER MONGOLIA ELECTRIC POWER CO LTD MAINTENANCE BRANCH +1
Neighbor relation configuration method and system in mobile network, and eNodeB
InactiveCN105517009AAvoid switching failuresImprove network qualityWireless communicationAccess networkNeighbor relation
The invention discloses a neighbor relation configuration method and system in a mobile network, and an eNodeB. The method comprises giving a response to a measurement report sent from a terminal, and determining a target cell which is to be added in an NRT (neighbor relation table) according to the measurement report; sending a measurement request for the target cell to the terminal; receiving the measurement result for the target cell of the terminal; determining whether the target cell belongs to the network where the terminal exists according to a measured evolved UMTS (Universal Mobile Telecommunications System) land wireless access network cell global identifier for the target cell; and if so, adding a physical cell identifier (PCI) of the target cell in the NRT so as to establish an X2 link between a NodeB of the cell where the terminal exists and a NodeB of the target cell according to the requirements. The neighbor relation configuration method and system in a mobile network can improve the network quality.
Owner:CHINA TELECOM CORP LTD
Communication method and communication device
ActiveCN106454964AAccurate Switching JudgmentAvoid switching failuresWireless communicationCommunication deviceBase station
The invention provides a communication method and a communication device. A base station is used to transmit a message including measurement configuration to UE, and the measurement configuration is used to request a cell global identifier of a UE report cell. The base station is used to acquire the measurement report reported by the UE, and the measurement report is corresponding to the measurement configuration, and includes the cell global identifier of the cell and the frequency band information of the cell. The base station is used for cell switching based on the frequency band information of the cell and the cell global identifier. The complete and accurate band information of the cell is acquired by the base station, and therefore the accurate switching decision of the base station is realized, and occurrence of switching failures is prevented.
Owner:HUAWEI TECH CO LTD
Method, device and system for maintaining adjacent district information among heterogeneous networks
InactiveCN101765174AAvoid switching failuresImprove satisfactionNetwork data managementAccess networkHeterogeneous network
The invention discloses method, device and system for maintaining adjacent district information among heterogeneous networks, wherein the method comprises the following steps of: receiving an updating message of the adjacent district information from an entity of a target network side; and updating the adjacent district information on an access network entity of a source network side according to the updating message of the adjacent district information. The invention is used for dynamically updating the adjacent district information to ensure the information synchronization among the heterogeneous networks and avoid terminals being unsuccessfully switched among the heterogeneous networks, and then the satisfactions of users are enhanced.
Owner:HUAWEI TECH CO LTD
Variable valve timing controller for internal combustion engine
ActiveUS20080065307A1Avoid failureGeneration increaseAnalogue computers for vehiclesElectrical controlMotor speedVariable valve timing
An ECU outputs a signal indicative of a target motor speed calculated based on a deviation between a target camshaft phase and an actual camshaft phase to an EDU. The EDU performs a feedback control of the output current (motor current) of the EDU so that the deviation is decreased, whereby an actual camshaft phase is feedbacked to a target camshaft phase. When the supply voltage of EDU is less than the operation limit voltage established higher than minimum operation assurance voltage, the variation of the target motor speed is restricted. Thereby, the output current of EDU is restricted, and further, when the supply voltage is less than minimum operation assurance voltage, the output current of EDU is intercepted.
Owner:DENSO CORP +1
Cell determination method, device and system
ActiveCN110475298AAvoid switching failuresIncrease success rateWireless communicationLow resourceHandover
Disclosed in an embodiment of the present invention are a cell determination method, device and system, which relate to the technical field of communications, and can solve the problem that a target base station refuses a handover request sent by a source base station due to insufficient idle resources or incapability of satisfying QoS requirements of a UE, resulting in handover failure of the UEbetween different cells. According to the specific scheme, an MEC entity receives a first request message sent by a source base station, wherein the first request message is used for requesting a first parameter, the first parameter is used for the source base station to determine a target cell to be switched by target UE, the target cell is provided with service by the target base station, and the target base station is the same as or different from the source base station; and the MEC entity sends the first parameter to the source base station. The embodiments of the present invention are applied to a scenario of cell handover.
Owner:VIVO MOBILE COMM CO LTD
Channel switch method, mobile terminal and computer readable storage medium
InactiveCN107454637AImprove experienceAvoid switching failuresWireless communicationSignal qualityGeolocation
The present invention discloses a channel switch method. The method includes the following steps that: the broadcast information of a current serving channel is monitored, when the broadcast information is received, the broadcast information is recorded and updated, wherein the broadcast information contains the base station parameter information and geographic positions of neighboring channels; when it is detected that the signal quality of the current serving channel drops to a preset value, whether a serving channel exists within a preset distance range is detected; if no serving channels exist within the preset distance range, a signal detection report as well the base station parameter information and geographic positions of the neighboring channels are extracted, and the extracted signal detection report as well as the extracted base station parameter information and geographic position of a neighboring channel which is nearest to a mobile terminal are sent to the current serving channel; and channel switch is performed according to information fed back by the current serving channel. The invention also discloses a mobile terminal and a computer readable storage medium. With the channel switch method, the mobile terminal and the computer readable storage medium of the invention adopted, the success rate of channel switch can be improved, and a call drop rate can be reduced.
Owner:NUBIA TECHNOLOGY CO LTD
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