WO2019095158A1 - Procédé et dispositif de communication radio - Google Patents

Procédé et dispositif de communication radio Download PDF

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Publication number
WO2019095158A1
WO2019095158A1 PCT/CN2017/111158 CN2017111158W WO2019095158A1 WO 2019095158 A1 WO2019095158 A1 WO 2019095158A1 CN 2017111158 W CN2017111158 W CN 2017111158W WO 2019095158 A1 WO2019095158 A1 WO 2019095158A1
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WO
WIPO (PCT)
Prior art keywords
reference signal
measurement
signal
condition
event
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Application number
PCT/CN2017/111158
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English (en)
Chinese (zh)
Inventor
史志华
陈文洪
张治�
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Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN201780091619.XA priority Critical patent/CN110741670B/zh
Priority to PCT/CN2017/111158 priority patent/WO2019095158A1/fr
Publication of WO2019095158A1 publication Critical patent/WO2019095158A1/fr

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • the present application relates to the field of communications and, more particularly, to a method and apparatus for wireless communication.
  • the entire cell can be covered by different beams, that is, each beam covers a smaller range, by sweeping over time.
  • the effect of multiple beams covering the entire cell is achieved.
  • Different beams are currently identified by different signals carried on them.
  • the terminal device can measure the signal carried on the beam and report the corresponding measurement result to the network.
  • the performance requirements of the communication system are high.
  • the embodiment of the present invention provides a wireless communication method and device, which can avoid the ping-pong effect of signal reporting and improve communication performance.
  • a wireless communication method including:
  • the measurement result obtained by measuring the at least one reference signal based on the second measurement manner selecting the second from the at least one reference signal a reference signal, the selected second reference signal has a signal quality that satisfies a second condition, and the first event occurring for the second reference signal has met the third condition or is preset for the second reference signal
  • the first event does not occur in the range of the configuration or the configuration, wherein the first event is that the quality of the signal measured by using the first measurement mode is poor to satisfy the first condition
  • the selected second reference signal is reported to the network device.
  • the first measurement manner is a measurement manner of acquiring a block error rate BLER
  • the second measurement manner is a measurement manner of acquiring a signal strength
  • the first measurement manner is a method for acquiring a signal strength
  • the second measurement The quantity method is a method of obtaining a block error rate
  • the third condition includes:
  • a time window has elapsed after the first event occurred.
  • At least one of a start position, an end position, and a time length of the time window is a preset Or configured by the network side.
  • the third condition includes:
  • the number of second events that occur after the first event occurs is greater than or equal to a particular value.
  • the second event is:
  • the first measurement is measured and the signal quality is poor to satisfy the first condition.
  • the specific value is preset or configured by the network side.
  • the first reference signal is a channel state information reference signal or a synchronization signal block.
  • the at least one reference signal includes a channel state information reference signal and/or a synchronization signal block.
  • the reference signals having different identifier IDs are sent by using different transmit beams.
  • a terminal device for performing the method of any of the above first aspect or any of the possible implementations of the first aspect.
  • the terminal device comprises functional modules for performing the method of the first aspect or any of the possible implementations of the first aspect described above.
  • a terminal device including a processor, a memory, and a transceiver.
  • the processor, the memory and the transceiver communicate with each other through an internal connection path, and the transmission control And/or a data signal, such that the terminal device performs the method of any of the first aspect or the first aspect of the first aspect.
  • a computer readable medium for storing a computer program, the computer program comprising instructions for performing any one of the methods described above or any possible implementation.
  • a computer program product comprising instructions, when executed on a computer, causes the computer to perform the method of any one of the above methods or any of the possible implementations.
  • FIG. 1 is a schematic diagram of a wireless communication system in accordance with an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a wireless communication method according to an embodiment of the present application.
  • FIG. 3 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 4 is a schematic block diagram of a system chip in accordance with an embodiment of the present application.
  • FIG. 5 is a schematic block diagram of a communication device in accordance with an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • FIG. 1 shows a wireless communication system 100 to which an embodiment of the present application is applied.
  • the wireless communication system 100 can include a network device 110.
  • Network device 100 can be a device that communicates with a terminal device.
  • Network device 100 may provide communication coverage for a particular geographic area and may communicate with terminal devices (e.g., UEs) located within the coverage area.
  • the network device 100 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or may be a base station (NodeB, NB) in a WCDMA system, or may be an evolved base station in an LTE system.
  • BTS Base Transceiver Station
  • NodeB NodeB
  • the network device can be a relay station, an access point, an in-vehicle device, a wearable device, A network side device in a future 5G network or a network device in a publicly available Public Land Mobile Network (PLMN) in the future.
  • PLMN Public Land Mobile Network
  • the wireless communication system 100 also includes at least one terminal device 120 located within the coverage of the network device 110.
  • Terminal device 120 can be mobile or fixed.
  • the terminal device 120 may refer to an access terminal, a user equipment (User Equipment, UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless communication.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • D2D device to device communication
  • D2D device to device
  • the 5G system or network may also be referred to as a New Radio (NR) system or network.
  • NR New Radio
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the wireless communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device. The application embodiment does not limit this.
  • the wireless communication system 100 may further include a network controller, a mobility management entity, and the like.
  • Other network entities are not limited in this embodiment.
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • the entire cell can be covered by different beams, that is, each beam covers a smaller range, by sweeping over time.
  • the effect of multiple beams covering the entire cell is achieved. Different beams are currently identified by different signals carried on them.
  • synchronization signals Synchronization Signal Blocks, SS blocks, or SSBs
  • SS blocks Synchronization Signal Blocks
  • SSBs Synchronization Signal Blocks
  • some Beams transmit different SSBs, and other beams transmit different CSI-RSs. Therefore, different CSI-RSs, different SSBs, and different types of CSI-RSs and SSBs may be used. distinguish.
  • the signals are different, which may mean that the identification information that is visible to the signal is different.
  • the terminal device can measure the signal carried on the beam and report the corresponding measurement result to the network.
  • the beam pair terminal device may be invisible, and the terminal may see different signal identifiers.
  • the terminal device can acquire the signal strength of the signal and is based on the signal strength Degree is judged.
  • the reference signal receiving power (L1-RSRP) can be received by measuring the reference signal, and the RSRP is compared, and then the optimal K signals are selected for reporting.
  • the terminal device may adopt a block error rate (BLER), and determine, according to the BLER, where the BLER may be a physical downlink control channel (PDCCH).
  • BLER block error rate
  • the BLER determines whether the quality of a beam carrying a PDCCH is good or bad.
  • the terminal device calculates the Hypothetical PDCCH BLER, it considers the interference it receives, and RSRP considers the strength of the received signal itself. Therefore, in this case, the two are not completely identical. For example, if a beam has a strong signal and the terminal equipment receives strong interference when receiving it, the result is the best if it is determined by RSRP, but the beam failure has been determined by the Hypothetical PDCCH BLER. Failed.
  • the terminal device needs to measure some beams, and select one or more new candidates by using the measurement result.
  • the new candidate beam (s) is reported to the network side.
  • selecting a new candidate beam one way is to measure and select according to RSRP.
  • the second method described above a "ping-pong effect" may occur.
  • the current 2 beam beam1 and beam2
  • the interference is very large.
  • the PDCCH is transmitted on the beam2 for the terminal device (ie, the beam 2 is the active PDCCH beam).
  • the beam1 is selected for reporting; the network side transmits the beam 1 according to the report of the terminal device.
  • the quality of the beam 1 as the active PDCCH beam is judged by the Hypothetical PDCCH BLER, and since the interference is large, it is determined to be beam failure.
  • this beam2 is also selected, and beam 2 will also have beam failure. After selecting beam1, beam failure,... will occur again. Thus entering the "ping-pong effect.”
  • the embodiments of the present application provide a method for solving the ping-pong effect of beam selection due to using different measurement modes.
  • FIG. 2 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application.
  • the method 200 is optionally applicable to the system shown in FIG. 1, but is not limited thereto.
  • the method 200 can optionally be performed by a terminal device.
  • the method 200 includes at least some of the following.
  • the measurement result obtained by measuring the at least one reference signal based on the second measurement manner is from at least one Selecting a second reference signal from the reference signal, the signal quality of the selected second reference signal is excellent to satisfy the second condition, and the first event occurring for the second reference signal has met the third condition or for the The first event does not occur within a preset or configured range, wherein the first event is that the signal quality measured by using the first measurement mode is poor to satisfy the first condition.
  • the measuring the at least one reference signal based on the second measurement manner may be performed before determining that the signal quality of the first reference signal measured by the first measurement manner is poor until the first condition is met, and may also be determined by using the first measurement manner. The signal quality of the first reference signal is poor until the first condition is satisfied.
  • the first measurement mode is a measurement manner of acquiring a block error rate BLER
  • the second measurement mode is a measurement manner of acquiring a signal strength
  • the first measurement mode is a measurement manner of acquiring a signal strength
  • the second measurement mode is a measurement manner of acquiring a block error rate.
  • the first reference signal is a channel state information reference signal or a synchronization signal block.
  • the first condition may be that the signal quality of the first reference signal is lower than or equal to a specific value.
  • the first condition may be that the number of times the signal quality of the first reference signal is lower than or equal to the specific value is accumulated to a predetermined number of times.
  • the first condition may be that the number of times the signal quality of the first reference signal is continuously lower than or equal to the specific value is accumulated to a predetermined number of times.
  • the at least one reference signal comprises a channel state information reference signal and/or a synchronization signal block.
  • the at least one reference signal may also include a first reference signal.
  • the reference signals with different identifier IDs are sent by using different transmit beams.
  • the second condition may be that the signal quality of the second reference signal is higher than or equal to a specific value.
  • the second condition may be that the number of times the signal quality of the second reference signal is higher than or equal to the specific value is accumulated to a predetermined number of times.
  • the second condition may be that the signal quality of the second reference signal is continuously higher than or equal to the specific value for a predetermined number of times.
  • the terminal device reports the selected second reference signal to the network device.
  • the terminal device may report the second reference signal to the network device, and optionally, may carry the measurement result, and the network device may select, according to the reporting by the terminal device, the downlink channel corresponding to the second reference signal, for example, PDCCH.
  • the network device may select, according to the reporting by the terminal device, the downlink channel corresponding to the second reference signal, for example, PDCCH.
  • the third condition includes experiencing a time window after the first event occurs.
  • At least one of a start position, an end position, and a time length of the time window is preset or configured by a network side.
  • the network configures the UE to transmit its PDCCH on the current beam 0.
  • the UE may measure N CSI-RS signals (the N CSI-RSs may include the CSI-RS corresponding to beam0 or may not include the CSI-RS corresponding to beam0) (eg, L1-RSRP), and select one of them as a new candidate beam to report to the network.
  • a time window is set. In this specified time window, the UE does not select beam 0 as the new candidate beam to report to the network.
  • the length of the time window is a value that can be configured by the network or preset on the UE.
  • the start or end position of this time window can be configured by the network or preset on the UE.
  • the third condition includes the number of times the second event occurs after the first event occurs is greater than or equal to a particular value.
  • the second event is:
  • the first measurement is measured and the signal quality is poor to satisfy the first condition.
  • the specific value is preset or configured by the network side.
  • the network configures the UE to transmit its PDCCH on the current beam 0. If at the same time, the UE may measure N CSI-RS signals (the N CSI-RSs may include CSI-RS corresponding to beam0 or may not include CSI-RS corresponding to beam0) signal strength (eg, L1-RSRP) ), and select one of them as a new candidate beam to report to the network.
  • N CSI-RS signals the N CSI-RSs may include CSI-RS corresponding to beam0 or may not include CSI-RS corresponding to beam0
  • signal strength eg, L1-RSRP
  • the UE will not select beam0 as the new candidate beam to report to the network within a certain number of times:
  • the above number of times can be configured by the network or preset on the terminal device.
  • the record is incremented by 1.
  • the log is incremented by 1.
  • the above example is beam 0.
  • the third condition is described above, including: experiencing a time window after the first event occurs, and the third condition includes: the number of times the second event occurs after the occurrence of the first event is greater than or equal to a specific value, which should be understood
  • the third condition includes: the time window after the occurrence of the first event and the number of times the second event occurs after the first event occurs is greater than or equal to a specific value, that is, when the two conditions are met,
  • the terminal device selects the beam corresponding to the second reference signal as a new candidate beam.
  • the measurement result obtained by measuring the at least one reference signal based on the second measurement manner Selecting a second reference signal from the at least one reference signal, the signal quality of the selected second reference signal is excellent to satisfy the second condition, and the first event occurring for the second reference signal has met the third condition or
  • the first event does not occur in the preset or configured range, and the first event is that the signal quality measured by using the first measurement mode is poor to satisfy the first Condition, therefore, the selection of the signal (or beam) or the reported ping-pong effect when the reference signal is measured by different measurement methods can be avoided, thereby improving the communication performance.
  • FIG. 3 is a schematic block diagram of a terminal device 400 according to an embodiment of the present application.
  • the terminal device 400 includes a processing unit 410 and a communication unit 420;
  • the processing unit 410 is configured to: after determining that the signal quality of the first reference signal measured by using the first measurement manner is poor to satisfy the first condition, the measurement result obtained by measuring the at least one reference signal based on the second measurement manner, Selecting a second reference signal from the at least one reference signal, the signal quality of the selected second reference signal is excellent to satisfy the second condition, and the first event occurring for the second reference signal has met the third condition or The first event does not occur in the preset or configured range, wherein the first event is that the signal quality measured by using the first measurement mode is poor to satisfy the first condition.
  • the communication unit 420 is configured to: report the selected second reference signal to the network device.
  • the first measurement mode is a measurement manner of acquiring a block error rate BLER
  • the second measurement mode is a measurement manner of acquiring a signal strength
  • the first measurement mode is a measurement manner of acquiring a signal strength
  • the second measurement mode is a measurement manner of acquiring a block error rate.
  • the third condition includes:
  • a time window has elapsed after the first event occurred.
  • At least one of a start position, an end position, and a time length of the time window is preset or configured by a network side.
  • the third condition includes:
  • the number of second events that occur after the first event occurs is greater than or equal to a particular value.
  • the second event is:
  • the first measurement is measured and the signal quality is poor to satisfy the first condition.
  • the specific value is preset or configured by the network side.
  • the first reference signal is a channel state information reference signal or a synchronization signal block.
  • the at least one reference signal comprises a channel state information reference signal and/or a synchronization signal block.
  • reference signals having different identification IDs are transmitted using different transmit beams.
  • terminal device 400 may correspond to the terminal device in the method embodiment, and the corresponding operations implemented by the terminal device in the method embodiment may be implemented. For brevity, details are not described herein again.
  • FIG. 4 is a schematic structural diagram of a system chip 600 according to an embodiment of the present application.
  • the system chip 600 of FIG. 4 includes an input interface 601, an output interface 602, the processor 603, and a memory 604 that can be connected by an internal communication connection line.
  • the processor 603 is configured to execute code in the memory 604.
  • the processor 603 when the code is executed, the processor 603 implements a method performed by a network device in a method embodiment. For the sake of brevity, it will not be repeated here.
  • the processor 603 when the code is executed, the processor 603 implements a method performed by the terminal device in the method embodiment. For the sake of brevity, it will not be repeated here.
  • FIG. 5 is a schematic block diagram of a communication device 700 in accordance with an embodiment of the present application.
  • the communication device 700 includes a processor 710 and a memory 720.
  • the memory 720 can store program code, and the processor 710 can execute the program code stored in the memory 720.
  • the communication device 700 can include a transceiver 730 that can control the transceiver 730 to communicate externally.
  • the processor 710 can call the program code stored in the memory 720 to perform the corresponding operations of the network device in the method embodiment.
  • the processor 710 can call the program code stored in the memory 720 to perform the corresponding operations of the network device in the method embodiment.
  • the processor 710 can call the program code stored in the memory 720 to perform the corresponding operations of the terminal device in the method embodiment.
  • the processor 710 can call the program code stored in the memory 720 to perform the corresponding operations of the terminal device in the method embodiment.
  • the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA), or the like. Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory.
  • the volatile memory can be a Random Access Memory (RAM) that acts as an external cache.
  • RAM Random Access Memory
  • many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM).
  • SDRAM Double Data Rate SDRAM
  • DDR SDRAM Double Data Rate SDRAM
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SLDRAM Synchronous Connection Dynamic Random Access Memory
  • DR RAM direct memory bus random access memory
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separate.
  • the components displayed for the unit may or may not be physical units, ie may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

Selon des modes de réalisation, la présente invention concerne un procédé et un dispositif de communication radio, destinés à être utilisés pour éviter un effet ping-pong provoqué par une sélection ou un rapport de signal, et améliorer les performances de communication. Le procédé comprend les étapes suivantes : après avoir déterminé que la qualité de signal d'un premier signal de référence mesurée à l'aide d'un premier mode de mesure est trop faible pour satisfaire une première condition, sélectionner, sur la base d'un résultat de mesure obtenu par mesure d'au moins un signal de référence dans un second mode de mesure, un second signal de référence à partir du ou des signaux de référence, la qualité de signal du second signal de référence sélectionné étant suffisamment élevée pour satisfaire une deuxième condition, et un premier événement qui se produit pour le second signal de référence satisfaisant une troisième condition, ou le premier événement ne se produit pas dans une plage prédéfinie ou configurée pour le second signal de référence, le premier événement étant que la qualité de signal mesurée à l'aide du premier mode de mesure est trop faible pour satisfaire la première condition ; et rapporter le second signal de référence sélectionné à un dispositif de réseau.
PCT/CN2017/111158 2017-11-15 2017-11-15 Procédé et dispositif de communication radio WO2019095158A1 (fr)

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CN201780091619.XA CN110741670B (zh) 2017-11-15 2017-11-15 无线通信方法和设备
PCT/CN2017/111158 WO2019095158A1 (fr) 2017-11-15 2017-11-15 Procédé et dispositif de communication radio

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Citations (5)

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CN103491581A (zh) * 2013-09-27 2014-01-01 北京邮电大学 一种基于高速铁路定点切换算法的最佳切换参考点选取方法
US9398509B1 (en) * 2015-01-07 2016-07-19 Verizon Patent And Licensing Inc. Dynamic hand-over parameter control
US20160360462A1 (en) * 2015-06-07 2016-12-08 Apple Inc. Handover between cells based on signal quality and interference estimation
WO2017028315A1 (fr) * 2015-08-20 2017-02-23 Telefonaktiebolaget Lm Ericsson (Publ) Procédé et appareil de mesure et de rapport
WO2017039503A1 (fr) * 2015-09-02 2017-03-09 Telefonaktiebolaget Lm Ericsson (Publ) Premier et second nœud de réseau radio et procédés associés

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CN102137455B (zh) * 2010-01-26 2015-05-27 展讯通信(上海)有限公司 异系统切换方法及终端设备

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Publication number Priority date Publication date Assignee Title
CN103491581A (zh) * 2013-09-27 2014-01-01 北京邮电大学 一种基于高速铁路定点切换算法的最佳切换参考点选取方法
US9398509B1 (en) * 2015-01-07 2016-07-19 Verizon Patent And Licensing Inc. Dynamic hand-over parameter control
US20160360462A1 (en) * 2015-06-07 2016-12-08 Apple Inc. Handover between cells based on signal quality and interference estimation
WO2017028315A1 (fr) * 2015-08-20 2017-02-23 Telefonaktiebolaget Lm Ericsson (Publ) Procédé et appareil de mesure et de rapport
WO2017039503A1 (fr) * 2015-09-02 2017-03-09 Telefonaktiebolaget Lm Ericsson (Publ) Premier et second nœud de réseau radio et procédés associés

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