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公开(公告)号：EP4120776A1
公开(公告)日：2023-01-18
申请号：EP21785500.6
申请日：2021-04-02
发明人： ZHANG, Li , WEI, Jingxin , XUE, Jiantao , HAN, Jing
IPC分类号： H04W72/08
摘要： Embodiments of this application provide a cell activation method and an apparatus, and relate to the communication field. Timing information and beam information of a to-be-activated cell are obtained based on a known cell or an activated cell, to reduce cell search and beam measurement time in an activation process, and implement quick activation. A specific solution is as follows: A communication apparatus determines a serving cell that can perform information synchronization with a to-be-activated SCell, where the serving cell is an activated cell or a known cell; the communication apparatus determines a first SSB in SSBs sent by the to-be-activated SCell, where the first SSB corresponds to a second SSB sent by the serving cell; and the communication apparatus activates the to-be-activated SCell based on the first SSB sent by the to-be-activated SCell and timing information and beam information of the second SSB. Embodiments of this application are used in the cell activation process.
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公开(公告)号：EP4027738A1
公开(公告)日：2022-07-13
申请号：EP19946750.7
申请日：2019-09-29
发明人： HAN, Jing , ZHANG, Li , XUE, Jiantao , XIAO, Jiehua
IPC分类号： H04W74/04
摘要： This application relates to the field of communication technologies and discloses a communication method and a communication apparatus, which are used to resolve a problem of a large activation delay of a secondary serving cell serving a terminal device in an existing technology. The method includes: A network device sends temporary SSB burst configuration information to a terminal device served by a secondary serving cell, where the temporary SSB burst configuration information includes a periodicity and/or an offset for sending a temporary SSB burst by the network device in the secondary serving cell configured for the terminal device. The network device sends a temporary SSB burst in the secondary serving cell based on the temporary SSB burst configuration information, where a temporary SSB included in the temporary SSB burst does not include a PBCH.
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公开(公告)号：EP3681215A1
公开(公告)日：2020-07-15
申请号：EP18862703.8
申请日：2018-09-28
发明人： XUE, Jiantao , HAN, Jing
摘要： A method and a device for sending a positioning signal are used to determine, when a first device or a second device maintains a connected state with two access networks, a target access network for sending the positioning signal. The method includes: determining, by a first device, a first target access network used to transmit a positioning signal, where the first target access network includes at least one of a first access network and a second access network; and sending, by the first device, the positioning signal to a second device by using the first target access network.
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4.发明公开
公开(公告)号：EP3386248A1
公开(公告)日：2018-10-10
申请号：EP15911703.5
申请日：2015-12-28
发明人： XUE, Jiantao , ZHU, Wei , SU, Bin , CUI, Jie , LI, Anjian , LI, Hong
IPC分类号： H04W64/00
摘要： Embodiments of the present invention provide a positioning method based on a time difference of arrival, user equipment, and a network device. The method includes: calculating, by user equipment, a first time difference of arrival RSTD1 based on positioning signals sent by a first base station and a second base station at a same moment; calculating a second time difference of arrival RSTD2 based on known location information of the user equipment; calculating a time alignment error TAE based on the RSTD1 and the RSTD2; and performing, based on the TAE, positioning based on a time difference of arrival TDOA. According to this method, the TAE caused by the base stations is subtracted during positioning calculation. In other words, the time alignment error caused by the base stations is eliminated. Therefore, accuracy of TDOA-based positioning can be ensured.
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公开(公告)号：EP4124075A1
公开(公告)日：2023-01-25
申请号：EP21784222.8
申请日：2021-04-12
发明人： HUANG, Su , ZHANG, Li , XUE, Jiantao , GAO, Xin
IPC分类号： H04W4/02
摘要： This application discloses a positioning signal processing method and an apparatus. A positioning device sends positioning reference signal PRS configuration information to a terminal, where a PRS is sent in a form of a PRS resource set, each PRS resource set includes one or more PRSs, and one access network device corresponds to one or more PRS resource sets. The terminal determines PRS time domain information based on the PRS configuration information, where the time domain information includes a periodicity P of the PRS and a symbol length K of the PRS in the periodicity P. The terminal receives the plurality of PRSs based on the PRS time domain information. In embodiments of this application, the terminal obtains the PRS time domain information based on the PRS configuration information, and the PRS is received based on the time domain information, to ensure accuracy and reliability of receiving the PRS by the terminal.
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公开(公告)号：EP4027687A1
公开(公告)日：2022-07-13
申请号：EP19946677.2
申请日：2019-09-26
发明人： ZHANG, Li , HAN, Jing , XUE, Jiantao
摘要： This application provides a communication method and apparatus, to activate a secondary cell. If the activated cell is an unknown secondary cell, after a terminal device detects the secondary cell, the terminal device may send indication information to a network device. The indication information is used to trigger the network device to send an RS. In this way, after receiving the indication information, the network device may send the RS to the terminal device. Therefore, this can avoid a case in which the terminal device waits for the network device to send a reference signal with a long period, and this can reduce a delay of activating the secondary cell.
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公开(公告)号：EP3592044A1
公开(公告)日：2020-01-08
申请号：EP17908205.2
申请日：2017-05-03
发明人： XUE, Jiantao , HAN, Jing
摘要： Embodiments of this application provide a signal measurement method and a related device. The signal measurement method includes: when performing signal measurement, determining, by a terminal, whether a signal bandwidth of a signal sent by a base station is switched; if determining that the signal bandwidth of the sent signal is switched, measuring, by the terminal, a switched signal bandwidth or a switched frame structure of the sent signal; and sending, by the terminal, a measurement report to the base station according to a preset rule or a measurement indication of the base station, to realize measuring a signal with a changing bandwidth in a cellular mobile communications network.
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公开(公告)号：EP3255449B1
公开(公告)日：2019-08-07
申请号：EP15893604.7
申请日：2015-05-29
发明人： LI, Yijie , XUE, Jiantao , CUI, Jie , LI, Anjian
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9.发明公开
公开(公告)号：EP3461190A1
公开(公告)日：2019-03-27
申请号：EP16905825.2
申请日：2016-06-22
发明人： XUE, Jiantao , REN, Houping , LI, Anjian
IPC分类号： H04W64/00
摘要： The present invention relates to the mobile communications field, and in particular, to a technology for determining a positioning base station configured to position a terminal device. In a positioning base station determining method, a positioning server receives a positioning request message from a terminal device; the positioning server obtains information about a candidate base station from a serving base station of the terminal device according to the positioning request message, where the information about a candidate base station indicates at least one base station; and the positioning server determines a positioning base station set according to the information about a candidate base station, where the positioning base station set includes a positioning base station configured to position the terminal device, and the positioning base station includes one or more of the at least one base station and/or the serving base station. According to the solution provided in this application, the positioning server can obtain the information about a candidate base station in time, thereby reducing a positioning time, and improving positioning efficiency.
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公开(公告)号：EP3389320A1
公开(公告)日：2018-10-17
申请号：EP15912021.1
申请日：2015-12-31
发明人： XUE, Jiantao , LI, Anjian , SU, Bin
IPC分类号： H04W64/00
CPC分类号： G01S5/10 , G01S5/0036 , G01S5/0226 , H04B7/0613 , H04L1/0026 , H04W64/00 , H04W64/003
摘要： Embodiments of the present invention provide a terminal device and a positioning system, and relate to the field of communications technologies. The terminal device is configured to: obtain, based on auxiliary data configured by a network device, identifiers of at least two antenna elements and attribute information of a reference signal corresponding to each of the at least two antenna elements; receive at least two reference signals based on the attribute information, where the at least two reference signals are sent by corresponding antenna elements of the at least two antenna elements, respectively; obtain positioning information by measuring the at least two reference signals; and send, to the network device, the positioning information and identification information of antenna elements corresponding to the positioning information. Positioning signals obtained by different antenna elements are different, so that the terminal device can identify which antenna element a received positioning signal comes from. Therefore, an improved distributed antenna system can implement terminal device positioning, and improve indoor positioning accuracy.
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