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33results about How to "Improve handover success rate" patented technology

Handover method and apparatus for providing mobile IPTV service over heterogeneous wireless communication networks

Disclosed herein is a handover method and apparatus for providing mobile Internet Protocol Television (IPTV) service over wireless communication networks. The handover method includes checking whether the strength of a signal received from a first base station of a serving first wireless network falls within a predetermined first threshold range; if the strength of the signal falls within the range, checking whether the strength of a signal received from at least one base station of a second wireless network is higher than a second threshold value required for handover; estimating the velocity and direction of a Mobile Node (MN) using location information received from a satellite; predicting a handover target base station using the estimated velocity and estimated location information; and, if the predicted target base station is one of base stations having the second threshold value, performing handover to the target base station.
Owner:INTELLECTUAL DISCOVERY CO LTD

Identifying Mobile Station in a Cellular Wireless Communication System

A method of facilitating identification of a user equipment (UE) is disclosed. A first network control node (NCN) receives an radio link failure (RLF) indication message including a first mobile identity indicator (MII) of a UE. The first NCN determines a second MII of the UE, the second MII being associated with the first MII, and a second NCN associated with the second MII. And the first NCN sends the second MII to the second NCN.
Owner:HUAWEI TECH CO LTD

Connection destination base station determination device

A connection destination base station determination device is disclosed that includes: a storage part configured to store information indicating a radio base station that has transmitted a signal received with intensity at or above a certain level in a mobile terminal, and information indicating the amount of available resources in the radio base station; a selection part configured to select, of radio base stations having the amount of available resources greater than or equal to the amount of resources requested by the mobile terminal, a radio base station different from a radio base station having the largest amount of available resources as a connection destination radio base station; and a notification part configured to notify the selected radio base station that the mobile terminal is to be connected thereto.
Owner:FUJITSU LTD

Measurement control method, user equipment, control node, and system

The present application discloses a measurement control method, a user equipment, a control node, and a system, relates to the field of wireless communications, and can reduce handover signaling and improve a handover success rate. The method of the present application mainly includes: receiving measurement configuration information sent by a control node, where the measurement configuration information includes a list of first-type cells, the type of first-type cells, a list of second-type cells, the type of second-type cells, hierarchical cell structure (HCS) priorities, a frequency of first-type cells, or a dedicated parameter for evaluating an event trigger threshold; detecting cell signal quality or signal strength of a cell; and determining, according to the cell signal quality or signal strength and the measurement configuration information, whether to report an event or a measurement result to the control node. The present application is mainly used in a process of mobility management.
Owner:HUAWEI TECH CO LTD

Neighbor cell switching adjusting method and device

InactiveCN105792245AImprove running qualityHandover failure rate improvementWireless communicationFailure rateComputer science
The invention discloses a neighbor cell switching adjusting method and device. According to the method, statistics is carried out to switching failure rates or switching success rates corresponding to neighbor cells when a piece of UE switches from a serving cell to the neighbor cells; the neighbor cells with the switching failure rates more than a first preset threshold value or the switching success rates less than a second preset threshold value are determined as to-be-adjusted neighbor cells; and the switching weights of the to-be-adjusted neighbor cells are adjusted. According to the technical scheme provided by the invention, the switching success rate is improved, and the network operation quality is improved.
Owner:ZTE CORP

Method and System for a Transmitting Mobility State

A method for transmitting a mobility state is provided in the present invention, the method includes: when an source evolved NodeB (eNB) performs a handover of a user equipment (UE) in a connectivity state, it sends the UE historical information to a target eNB; the target eNB decides a mobility state of the UE according to the UE historical information. Alternatively, when the source eNB performs a handover of the UE in a connectivity state, it decides the mobility state of the UE according to the UE historical information, sets the corresponding mobility state instruction information and sends it to the target eNB; the target eNB acquires the mobility state corresponding to the UE according to the received mobility state instruction information. A system for transmitting a mobility state is also provided in the present invention.
Owner:ZTE CORP

Narrow band handover method, device and system of wide-narrow integrated communication system

The invention discloses a narrow band handover method in a wideband-narrowband integrated communication system, a terminal, a base station, and a core network. The core network issues information of anarrowband base station to a wideband base station, the wideband base station issues the narrowband base station information; the terminal receives the narrowband base station information and initiates the narrowband base station handover according to the narrowband base station. Through the narrowband handover method disclosed by the invention, the handover time can be reduced, the successful rate of the handover is improved, the cost is low, and the efficiency is high.
Owner:HYTERA COMM CORP

Apparatus and method for handover in a wireless communication system

An apparatus and method for handover in a wireless communication system are provided. The method includes, upon handover execution, estimating a channel, controlling a transmission power of a Mobile Station (MS) depending on the channel estimation result, and transmitting a handover message using the controlled transmission power.
Owner:SAMSUNG ELECTRONICS CO LTD

Method for cell switchover suitable for TD-LTE public network trunking system

The invention discloses a method for cell switchover suitable for a TD-LTE public network trunking system. The method for cell switchover suitable for the TD-LTE public network trunking system comprises the steps that when a group composed of a plurality of mobile radio stations conducts cross-cell switchover, a temporary small network is constituted by the mobile radio stations needing switchover according to a preset threshold; a bridge group user is selected from the small network, wherein two sets of transceivers are assembled to the bridge group user so that communication can be conducted on networks at two different frequencies at the same time; information sent by a source base station is transmitted to other group users in the temporary small network by the bridge group user. Switchover from the source access station to a target access station is achieved through the bridge group user and after the bridge group user enters a target network, the other group users sequentially enter the target access station through negotiation between the bridge group user and the target access station. According to the scheme, collision in the process of switchover of the group is remarkably reduced, so that time of interruption of services of the mobile radio stations is reduced, and the mobile radio stations are compatible with an existing wireless network.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Method and apparatus for handover

A fast handover method is provided. At a source eNB, the method may include: receiving a measurement report sent periodically from a mobile node, wherein the sending of the measurement report is triggered no later than the mobile node arriving at a reference triggering point (RTP), and the measurement report comprises location and velocity information of the mobile node besides the conventional measurement information; performing handover preparation; and executing handover to a target eNB no later than the mobile node arriving at a reference handover point (RHP), With particular embodiments, the measurement results may be reported in time by defining an RTP and the handover may be executed timely by defining an RHP. Moreover, by defining an HTT, the handover preparation including data bi-casting may be started not too early, such that the consumption of network resources may be minimized. Accordingly, the handover time may be reduced and the handover success probability may be increased.
Owner:NEC (CHINA) CO LTD

Method and system for a transmitting mobility state

A method for transmitting a mobility state is provided in the present invention, the method includes: when an source evolved NodeB (eNB) performs a handover of a user equipment (UE) in a connectivity state, it sends the UE historical information to a target eNB; the target eNB decides a mobility state of the UE according to the UE historical information. Alternatively, when the source eNB performs a handover of the UE in a connectivity state, it decides the mobility state of the UE according to the UE historical information, sets the corresponding mobility state instruction information and sends it to the target eNB; the target eNB acquires the mobility state corresponding to the UE according to the received mobility state instruction information. A system for transmitting a mobility state is also provided in the present invention.
Owner:ZTE CORP

Method and apparatus for improving handover success rate

The present disclosure relates to a communication technique for combining a 5G communication system for supporting a higher data transmission rate after a 4G system with IoT technology, and a system thereof. The present disclosure can be applied to an intelligent service (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security and safety-related service, and so on) on the basis of 5G communication technology and IoT related technology. The present disclosure can provide a method for supporting a handover and a base station performing the same. The method includes receiving a message including a Radio Link Failure (RLF) report for a terminal from at least another base station, and determining whether a cell in which an RRC connection reestablishment has been attempted by the terminal after the RLF is a cell that is suitable to serve the terminal at a time of RLF occurrence on the basis of at least one of RRC connection setup indicator information and the RLF report.
Owner:SAMSUNG ELECTRONICS CO LTD

Method and apparatus for improving handover success rate

The present disclosure relates to a communication technique for combining a 5G communication system for supporting a higher data transmission rate after a 4G system with IoT technology, and a system thereof. The present disclosure can be applied to an intelligent service (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security and safety-related service, and so on) on the basis of 5G communication technology and IoT related technology. The present disclosure can provide a method for supporting a handover and a base station performing the same. The method includes receiving a message including a Radio Link Failure (RLF) report for a terminal from at least another base station, and determining whether a cell in which an RRC connection reestablishment has been attempted by the terminal after the RLF is a cell that is suitable to serve the terminal at a time of RLF occurrence on the basis of at least one of RRC connection setup indicator information and the RLF report.
Owner:SAMSUNG ELECTRONICS CO LTD

Connection destination base station determination device

A connection destination base station determination device is disclosed that includes: a storage part configured to store information indicating a radio base station that has transmitted a signal received with intensity at or above a certain level in a mobile terminal, and information indicating the amount of available resources in the radio base station; a selection part configured to select, of radio base stations having the amount of available resources greater than or equal to the amount of resources requested by the mobile terminal, a radio base station different from a radio base station having the largest amount of available resources as a connection destination radio base station; and a notification part configured to notify the selected radio base station that the mobile terminal is to be connected thereto.
Owner:FUJITSU LTD

Device and method for performing handover in wireless communication system

The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). According to embodiments, a method performed by a user equipment (UE) in a wireless communication system, the method comprises: receiving, from a base station, a radio resource control (RRC) reconfiguration message including conditional configuration information, wherein the conditional configuration information includes: identification information for a candidate cell; and a configuration of the candidate cell; and performing one or more operations for a conditional handover based on RRC reconfiguration message.
Owner:SAMSUNG ELECTRONICS CO LTD

Apparatus and method for performing handover using compressed information in broadband wireless access communication system

In the broadband wireless access communication system, handover using compressed information is performed by receiving a compressed broadcast message in a portable terminal, acquiring operator information and sector information from the compressed broadcast message, acquiring a preamble number from one of the compressed broadcast message and pre-stored information, identifying a cell and a sector based on the preamble number, the operator information, and the sector information, and when a sector of a handover target cell is a sector of another cell, executing inter-cell handover.
Owner:SAMSUNG ELECTRONICS CO LTD

A file caching method, device and system

The embodiment of the present invention discloses a file caching method, device and system. The file caching method includes: when the first vehicle enters the transfer sub-area of ​​the cache area from the storage sub-area of ​​the cache area, the stored data packet is transmitted to A second vehicle entering the handover sub-area from outside the buffer area. In the embodiment of the present invention, when the first vehicle is about to leave the cache area (that is, enters the handover sub-area from the storage sub-area), it transmits the data packet stored by itself to the second vehicle that is about to enter the cache area (that is, enters from outside the cache area) Handover sub-area), so that it can resist the high-speed mobility of vehicles and store data packets in the cache area for a long time.
Owner:ZTE CORP

Handover method based on handover-assisted micro base station in high-low frequency cooperative networking

The invention discloses a land-off method based on switching auxiliary micro base station in high / low frequency cooperative networking. Based on a high / low frequency cooperative networking system model, a switching auxiliary micro base station is introduced into a micro honeycomb overlapping region of two macro base stations, so when a user terminal is switched from a connected micro base stationto another macro base station, the user terminal is also kept to be connected with the switching auxiliary micro base station. Thus, a user signal measurement and reporting process is improved; signaling processes during land-off are optimized; and land-off success rate between macro honeycombs is improved. The high / low frequency cooperative networking is regarded to be one of key technologies forimproving capacity of the fifth generation of the mobile communication system. Along with application of millimeter waves and densification of the base station, the frequency and the complexity of the land-off are continuously improved, so the whole communication network will be faced with severe mobile management problems. A simulation result shows that the provided land-off method has favorableeffects in the aspect of system performance.
Owner:BEIJING JIAOTONG UNIV

Test tool for coating suspender

The invention discloses a test tool for a coating suspender. The test tool comprises a bearing frame, a locking device, an elevating frame, a positioning plate and at least one positioning hole, the bearing frame is detachably fixed on a steel beam of a workshop, the elevating frame is connected to the bearing frame in an up-down sliding way, the locking device is detachably fixed to the lower portion of the elevating frame and is in locking connection with the bearing frame in an unlockable way, the positioning plate is detachably fixed on the elevating frame, the positioning holes are distributed in the positioning plate separately, each positioning hole corresponds to the position of a positioning pin of the suspender, and the positioning hole is plugged with the corresponding positioning pin in a releasable way. The test tool for the coating suspender is simple in structure, flexible and convenient to elevate, easy to operate, safe and reliable, the correction precision of the suspender can be guaranteed, the success rate of vehicle body handover is improved, and an operator of the test tool is safer.
Owner:SAIC-GM-WULING AUTOMOBILE CO LTD

A cell handover method suitable for td-lte public network trunking system

The invention discloses a method for cell switchover suitable for a TD-LTE public network trunking system. The method for cell switchover suitable for the TD-LTE public network trunking system comprises the steps that when a group composed of a plurality of mobile radio stations conducts cross-cell switchover, a temporary small network is constituted by the mobile radio stations needing switchover according to a preset threshold; a bridge group user is selected from the small network, wherein two sets of transceivers are assembled to the bridge group user so that communication can be conducted on networks at two different frequencies at the same time; information sent by a source base station is transmitted to other group users in the temporary small network by the bridge group user. Switchover from the source access station to a target access station is achieved through the bridge group user and after the bridge group user enters a target network, the other group users sequentially enter the target access station through negotiation between the bridge group user and the target access station. According to the scheme, collision in the process of switchover of the group is remarkably reduced, so that time of interruption of services of the mobile radio stations is reduced, and the mobile radio stations are compatible with an existing wireless network.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Shared carrier network border area network handover method and device

The invention discloses a shared carrier network border area network switching method and device. The method includes: when the user terminal is in the boundary area of ​​the shared carrier network and moves from the shared cell to the non-shared cell, acquiring frequencies of the shared cell and the non-shared cell; judging whether the frequency of the shared cell is the same as that of the non-shared cell ; If the frequency of the shared cell is different from that of the non-shared cell, a special inter-frequency reference signal reception quality RSRQ is used as a handover decision condition to perform network handover. The present invention sets a special handover strategy in the boundary area of ​​the shared carrier network, and adopts a novel RSRQ handover during inter-frequency handover, which can significantly improve the success rate of handover at the boundary; and avoids the obvious same-frequency interference of users on the side of the inter-frequency handover The phenomenon of repeated call drop occurs due to the signal, which improves the user experience.
Owner:CHINA TELECOM CORP LTD
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