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97results about How to "Avoid the Ping-Pong Effect" patented technology

Cell reselection method and terminal

The invention discloses a cell reselection method and a cell reselection terminal, which can be used for controlling the cell selection of a terminal which can support a first wireless access technical network and a second wireless access technical network and is resided in a cell of the first network currently. In the invention, the method comprises the steps following that: the terminal determines a target cell, wherein the target cell is a cell of the second wireless access technical network; the terminal acquires cell residence parameters of the target cell; and the terminal judges whether the target cell meets the cell residence conditions according to the acquired cell residence parameters, and if the target cell meets the cell residence conditions, the terminal determines that the target cell is a reselected cell. The cell reselection method and the cell reselection terminal have the advantages of reducing unnecessary cell selection in related technology, reducing failure times of the reselection, avoiding the ping-pong effect of the cell reselection, reducing the calculation consumption and power consumption of the terminal, avoiding bad influence of the frequent switching of the wireless access technical networks on the services of the terminal and improving the selection property of the wireless access technology.
Owner:ST ERICSSON SEMICON BEIJING

Method for cell selection and reselection, terminal, base station, and core network entity

The present invention provides a method for cell selection and reselection, a terminal, a base station, and a core network entity, and relates to the technical field of communications. The method forcell selection and reselection is applied to the terminal and comprises the following steps: acquiring service-related information supported by each piece of target information in a preset number of pieces of target information, wherein the target information comprises a frequency point and / or a cell; and carrying out selection and / or reselection on the cell in which the terminal in an idle stateor an inactive state is resident according to the service-related information. In the embodiment of the invention, the terminal carries out selection and / or reselection on the cell in which the terminal in the idle state or the inactive state is resident, so as to perfect the 5G communication process, thereby ensuring the reliability of network communication.
Owner:VIVO MOBILE COMM CO LTD

Method and device for switching visible light communication and WiFi heterogeneous system

ActiveCN107846714ASolve bottlenecksIn line with the characteristics of dynamic changesAssess restrictionClose-range type systemsFuzzy ruleSimulation
The embodiment of the invention provides a method and device for switching visible light communication and a WiFi heterogeneous system. The method comprises the following steps: obtaining QoS parameters of all candidate networks in an initial switching state, wherein the QoS parameters comprise an available bandwidth, end-to-end delay, jitter and a bit error rate; based on the QoS parameters of each candidate network, performing normalization and fuzzification processing on the QoS parameters to obtain fuzzy values and weight values of the parameters in the QoS parameters; based on the fuzzy values and the weight values, obtaining the performance evaluation value of each candidate network by using a fuzzy rule, and switching from the current network to a candidate network with the performance evaluation value satisfying preset conditions. According to the method provided by the embodiment of the invention, switching decision is performed on the problems that the parameters change in real time and that accurate modeling is difficult to implement during the network switching according to the fuzzy rule, and no accurate modeling analysis needs to be performed on the heterogeneous network, thereby improving the switching speed and avoiding the "ping-pong effect".
Owner:CHINA AGRI UNIV

Residential quarter switch method

The invention relates to a residential quarter switch method, and belongs to the technical field of wireless communication. The method comprises the following steps that UE continuously detects reference signal received power RSRP of a current serviced residential quarter and an adjacent residential quarter, and data smoothing is performed on the RSRP to judge whether the PSRP meets a switch triggering condition or not, if the PSRP meets the switch triggering condition, a time TTT timer is triggered to begin to time and perform step two, otherwise if the PSRP does not meet the switch triggering condition, the RSRP is continued to be detected; when the UE sends a pre-switch request message to the current serviced residential quarter, the current serviced residential quarter determines a UE pre-switch candidate residential quarter set according to the received message; the current serviced residential quarter notices a pre-switch candidate residential quarter to perform pre-switch preparation; if the TTT fails and the switch triggering condition detected by the EU is still met, a switch indication is sent to the current serviced residential quarter; the current serviced residential quarter determines a switch target residential quarter according to a measurement report; the current serviced residential quarter notices the switch target residential quarter to perform switching. The method can effectively reduce ping-pong effect and switching delay, and improve QoS experience of a user.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Self-organization network parameter configuration control method and parameter modification control system

The invention provides a self-organization network parameter configuration control method. The method comprises the following steps of: policy management: generating and maintaining parameter modification policy items by a parameter configuration control device; and parameter modification: modifying parameters by a self-organization network functional device according to corresponding parameter modification policy items to realize corresponding self-organization network functions. The self-organization network parameter configuration control method and the parameter modification control system effectively control the modification of the self-organization network parameters and avoid the ping-pong effect.
Owner:ZTE CORP

Differentiation system quick return method and terminal

The invention provides a differentiation system quick return method and a terminal. The method comprises the steps that before a first system switches to a second system, the terminal receives a first indication message sent by the first system; the first indication message comprises the threshold of the first system, which is quickly returned by the terminal; after the first system switches to the second system, the terminal receives a second indication message sent by the second system; the second indication message comprises first frequency point information of the first system, which is corresponding to an identifier LAI of the current location area of the terminal; whether the network quality of a first cell corresponding to the first frequency point information of the first system meets the threshold of the first system, which is quickly returned by the terminal is detected; and if meeting is realize, access the first cell is carried out. According to the invention, ping-pong effect and signaling consumption, which are caused due to the fact that the network quality of the cell is poor when the terminal carries out quick returning, are avoided; the terminal can stably and reliably return the system which preferentially resides from a differentiation system; and the user experience is improved.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD

Ground-air wideband communication switching method and system under high-speed moving condition

The invention discloses a ground-air wideband communication switching method and system under a high-speed moving condition. The ground-air wideband communication switching method comprises the following steps that: a current base station acquires aircraft position information and aircraft posture change information from aircraft-mounted terminal equipment; the aircraft-mounted terminal equipment measures and reports the signal quality of the current base station; the aircraft-mounted terminal equipment starts to measure a transmitting signal of a neighboring base station and reports the signal quality of the neighboring base station according to the signal quality of the current base station or a switching measurement request sent by the current base station; the current base station performs cross-region switching from the current base station to the neighboring base station according to the aircraft posture change information, the signal quality of the current base station and the signal quality of the neighboring base station. According to the ground-air wideband communication switching method and system disclosed by the invention, an effective switching decision can be made when the signal strength received by a terminal becomes weak according to position information and gesture information of an aircraft, so that performance reduction caused by ping-pong effect and too late switching decision can be avoided, in-time, effective, quick and smooth switching can be realized, and therefore service quality of ground-air wideband business is finally ensured.
Owner:航广卫星网络有限责任公司

Internet of Vehicles mobility management method based on CDN and MEC

The invention relates to the technical field of wireless short-distance communication in an Internet of Vehicles system, in particular to an Internet of Vehicles mobility management method based on CDN and MEC. The method comprises the following steps: when vehicle mobility management is performed under a CDN and MEC integration framework, determining a connection with an RSU by adopting a resource optimization principle, and processing a task generated by a vehicle through the connection; if the vehicle performs switching between RSUs, determining a switching position by adopting a dynamic channel allocation algorithm of overhead selection, and calculating the optimal vehicle switching time according to the switching position; if the vehicle is migrated, determining the computing resourceallocated to the vehicle by the MEC by adopting a cooperative game algorithm based on RSU scheduling, and solving the optimal price of the computing resource. According to the method, virtual machinemigration is carried out by adopting a cooperative game algorithm scheduled by roadside units, and a price control mechanism based on learning is developed, so MEC computing resources are effectivelyprocessed, the resource utilization rate is increased, and the overhead is reduced.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Event reporting method and reporting device

InactiveCN101212462AAvoid frequent incident reportingStable stateTransmissionLink layerReal-time computing
The embodiment in the invention discloses a method for reporting an event, which comprises the following processes: when a link layer judges whether the link parameter value exceeds the threshold, the link layer then continuously judges whether the lasting time of that the link parameter exceeds the threshold exceeds a presupposition chronaxia. If the result is that the lasting time of that the link parameter exceeds the threshold exceeds a presupposition chronaxia, a change situation of the link parameter is reported. Correspondingly, the embodiment in the invention also discloses a reporting device. The technology proposal provided by the embodiment can allow the network to maintain a more stable state and avoid a frequent event reporting caused by instantaneous variations of the link parameter existed in the prior art.
Owner:HUAWEI TECH CO LTD

Unmanned aerial vehicle one-station multi-machine system air-ground data link channel distribution method

The invention discloses an unmanned aerial vehicle one-station multi-machine system air-ground data link channel allocation method, and aims to provide a link channel allocation method capable of reducing the operation complexity and improving the channel resource reuse degree. The method is realized through the following technical scheme: a ground control station obtains unmanned aerial vehicle platform position information, counts the number of air-ground data links, calculates included angles between every two air-ground data links, and performs descending order arrangement on all includedangle values; then, starting from the air-ground data link corresponding to the maximum included angle, a 'super link' is constructed according to the relation between the included angle between the links and a 'multiplexing threshold', and the number of the air-ground data links contained in the super link is taken as the weight of the super link; the ground control station iteratively performs the super link merging process until no super link which can be further merged exists, and the channel resources are evenly distributed to each super link; and after the distribution process is finished, the channel distribution result is sent to the unmanned aerial vehicle platform through the uplink air link.
Owner:10TH RES INST OF CETC

Method and system for eliminating neighbor cell interference

The invention discloses a method and a system for eliminating neighbor cell interference. The method comprises the following steps of: separating an inner ring area and an outer ring area from a base station coverage area; mutually negotiating occupied frequency bands by neighbor base stations so that occupied frequency bands of respective outer ring areas are mutually different; transmitting a detecting signal to a terminal in the coverage area by the base station; judging the type of the user which corresponds to the terminal on the basis of a feedback signal generated by responding the detecting signal through the terminal, wherein the user is an inner ring user or an outer ring user; and applying the frequency band which corresponds to the type of the user by the base station on the basis of a judging result of the user type. Due to the adoption of the technical scheme of the invention, the type of a user in a cell in a WiMAX (Worldwide Interoperability for Microwave Access) common-frequency networking system can be accurately judged, particularly the ping-pong effect which is probably generated by a user positioned on an inner and outer ring boundary can be avoided and the performance of the whole network can be improved by a self-adapting threshold value adjusting algorithm.
Owner:ZTE CORP

Method for selecting relay UE in D2D communication

InactiveCN106572514AAvoid the Ping-Pong EffectTo achieve the purpose of reasonably selecting the relay UEHigh level techniquesWireless communicationSignal qualityRelay
The invention provides a method for selecting relay UE in D2D communication. The method comprises the following steps of through a discovery signal sent by the relay UE, acquiring relay UE information; selecting the relay UE satisfying an access demand and measuring signal quality of the discovery signal; selecting the relay UE whose signal quality is greater than a threshold 1as candidate relay UE; sorting the signal quality of the discovery signals of the candidate relay UE; and selecting the candidate relay UE whose sort is risen fastest and whose signal quality belongs to a first N rank as target relay UE, or selecting the candidate relay UE with the best signal quality as the target relay UE. In the invention, the relay UE can be reasonably selected and a ping-pong effect can be avoided during relay UE selection.
Owner:BEIJING XINWEI TELECOM TECH

Indoor and outdoor integrated positioning and navigation method and system

The present invention discloses an indoor and outdoor integrated positioning and navigation method and system, and relates to the field of positioning fusion. The method comprises: step 1: obtaining GPS, Bluetooth and inertial positioning data; step 2: after performing adaptive weighting, Kalman filtering and distance-based correction on the positioning data to complete positioning solving to obtain a final positioning point; step 3: performing point set division on a navigation line to obtain a reference point for projection calculation, and using a sliding window and curve geometric projection to project the final positioning point onto the reference point of the navigation line to obtain a projection point; and step 4: using the projection point for navigation and map display. Accordingto the technical scheme of the present invention, an adaptive weighting and Kalman filtering model is used to obtain a smooth positioning result, and distance-based correction is performed on the result to obtain stable and accurate positioning, so that the difficulties of the calculation amount, the real-time performance and stability caused by the fusion of inertial positioning, Bluetooth positioning and GPS positioning are overcome, and smooth indoor and outdoor integrated positioning and navigation can be achieved.
Owner:CHENGDU LINGQI SPACE SOFTWARE +1

Satellite beam switching method and system based on multiple dimensions

The invention discloses a satellite beam switching method based on multiple dimensions. When being applied to a satellite terminal, the method comprises the following steps: monitoring to-be-switchedindex information of the current satellite terminal, wherein the to-be-switched index information comprises original beam receiving signal intensity at the current moment, receiving signal intensity of each adjacent beam, channel quality, available resources of each adjacent beam and position coordinates of each adjacent beam; obtaining a switching threshold maximum value according to the to-be-switched index information so as to carry out the beam switching of the satellite when the gateway station judges that the switching threshold maximum value meets a preset condition. When being appliedto a gateway station, the method comprises the following steps: receiving to-be-switched index information and a switching threshold maximum value sent by a satellite terminal; when that the switchingthreshold maximum value meets a preset condition, carrying out satellite beam switching on the mobile terminal, wherein the switching threshold maximum value is obtained through calculation of to-be-switched index information. According to the method disclosed in the invention, excessive network overhead caused by beam switching can be reduced, and the switching efficiency and the communication quality are improved.
Owner:XIAN SPACE STAR TECH IND GRP
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