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1.发明申请公开(公告)号：US20180007563A1
公开(公告)日：2018-01-04
申请号：US15689189
申请日：2017-08-29
摘要： Apparatus and methods are provided to handle idle mode operation in the heterogeneous network with conventional macro cell and millimeter wave (mmW) small cells. In one novel aspect, the UE camps on both the macro cell and the mmW small cell. The UE receives system information that includes information of mmW small cells and paging messages from the macro cell and establishes RRC connection with one of the mmW small cell. In one embodiment, the UE performs mmW small cell discovery upon obtaining mmW small cell information. In another embodiment, the UE performs the mmW small cell discovery if the mobility status indicates low mobility and/or the traffic type is suitable for the mmW small cell. In another novel aspect, the UE receives the paging request from the macro cell and sends the paging response to the mmW small cell base station who forwards the paging response to the MME.
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公开(公告)号：US10652130B2
公开(公告)日：2020-05-12
申请号：US16289986
申请日：2019-03-01
发明人： Yuanyuan Zhang , Chia-Hao Yu , Yu-Syuan Jheng , Aimin Justin Sang
IPC分类号： H04L12/26 , H04B7/06 , H04W16/28 , H04W72/08 , H04W74/08 , H04W76/18 , H04W16/32 , H04W76/19
摘要： Apparatus and methods are provided to handle the intermittent disconnections in an mmW system. In one novel aspect, the beam tracking failure is determined upon detection of one or more tracking failure conditions. In one embodiment, the UE further considers potential recoveries to avoid frequent triggering of the beam-tracking failure condition. In another novel aspect, the UE performs one or more recovery procedures based on one or more recovery conditions. In one embodiment, the UE performs the initial alignment procedure to recover the connection. In another embodiment, the UE performs the beam-switching request procedure before triggers the initial alignment procedure. In one embodiment, timers are used to supervise the recovery procedures. In another embodiment, macro-assisted procedures are used for the beam-switching request procedure. In yet another novel aspect, the UE performs reestablishment of a new connection at the upper layer upon receiving the beam-tracking failure indicator.
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公开(公告)号：US10257070B2
公开(公告)日：2019-04-09
申请号：US15232217
申请日：2016-08-09
发明人： Yuanyuan Zhang , Chia-Hao Yu , Yu-Syuan Jheng , Aimin Justin Sang
IPC分类号： H04W76/00 , H04W16/28 , H04W72/08 , H04W74/08 , H04L12/26 , H04B7/06 , H04W76/18 , H04W16/32 , H04W76/19
摘要： Apparatus and methods are provided to handle the intermittent disconnections in an mmW system. In one novel aspect, the beam tracking failure is determined upon detection of one or more tracking failure conditions. In one embodiment, the UE further considers potential recoveries to avoid frequent triggering of the beam-tracking failure condition. In another novel aspect, the UE performs one or more recovery procedures based on one or more recovery conditions. In one embodiment, the UE performs the initial alignment procedure to recover the connection. In another embodiment, the UE performs the beam-switching request procedure before triggers the initial alignment procedure. In one embodiment, timers are used to supervise the recovery procedures. In another embodiment, macro-assisted procedures are used for the beam-switching request procedure. In yet another novel aspect, the UE performs reestablishment of a new connection at the upper layer upon receiving the beam-tracking failure indicator.
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公开(公告)号：US20180084526A1
公开(公告)日：2018-03-22
申请号：US15823958
申请日：2017-11-28
发明人： Yuanyuan Zhang , Yu-Syuan Jheng , Feifei Sun , Li Chen , I-Kang Fu
摘要： Methods and apparatus are provided for paging transmission and reception for UEs requiring coverage extension/coverage enhancement. In one novel aspect, the UE reports the CE status to the MME. CE level related information and the corresponding cell ID are provided from eNB to MME. MME sends paging information including the repetition number to all eNBs in the corresponding tracking area when paging the UE. In another novel aspect, a paging area is used for CE UEs. The UE receives paging area information, notifies the network, and updates the stored paging area information upon detecting changes between the received and the stored paging areas. In another embodiment, the UE reports its CE status upon detecting CE status changes. The eNB stores UE CE information and forwards it to neighboring eNBs in the same paging area. The eNB pages UEs on its CE UE list with repetition while paging other UEs normally.
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公开(公告)号：US09854560B2
公开(公告)日：2017-12-26
申请号：US15451581
申请日：2017-03-07
发明人： Yuanyuan Zhang , Yu-Syuan Jheng , Feifei Sun , Li Chen , I-Kang Fu
摘要： Methods and apparatus are provided for paging transmission and reception for UEs requiring repeatedly paging. In one novel aspect, the UE reports the status to the MME. UE status information and the corresponding cell ID are provided from eNB to MME. MME sends paging information including the repetition number to all eNBs in the corresponding tracking area when paging the UE. In another novel aspect, a paging area is used for UEs requiring repeatedly paging. The UE receives paging area information, notifies the network, and updates the stored paging area information upon detecting changes between the received and the stored paging areas. In another embodiment, the UE reports its status upon detecting status changes. The eNB stores UE information and forwards it to neighboring eNBs in the same paging area. The eNB pages UEs on its UE list with repetition while paging other UEs normally.
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公开(公告)号：US20160044633A1
公开(公告)日：2016-02-11
申请号：US14918773
申请日：2015-10-21
发明人： Yuanyuan Zhang , Yu-Syuan Jheng , Feifei Sun , Li Chen , I-Kang Fu
摘要： Methods and apparatus are provided for paging transmission and reception for UEs requiring coverage extension/coverage enhancement. In one novel aspect, the UE reports the CE status to the MME. CE level related information and the corresponding cell ID are provided from eNB to MME. MME sends paging information including the repetition number to all eNBs in the corresponding tracking area when paging the UE. In another novel aspect, a paging area is used for CE UEs. The UE receives paging area information, notifies the network, and updates the stored paging area information upon detecting changes between the received and the stored paging areas. In another embodiment, the UE reports its CE status upon detecting CE status changes. The eNB stores UE CE information and forwards it to neighboring eNBs in the same paging area. The eNB pages UEs on its CE UE list with repetition while paging other UEs normally.
摘要翻译： 提供了用于寻呼发送和接收的方法和装置，用于需要覆盖扩展/覆盖增强的UE。 在一个新颖的方面，UE向MME报告CE状态。 从eNB到MME提供CE级相关信息和相应的小区ID。 当寻呼UE时，MME向对应的跟踪区域中的所有eNB发送包括重复号码的寻呼信息。 在另一个新颖的方面，用于CE UE的寻呼区域。 UE接收到寻呼区域信息，通知网络，并且在检测到接收到的存储的寻呼区域之间的变化时更新存储的寻呼区域信息。 在另一实施例中，UE在检测到CE状态改变时报告其CE状态。 eNB存储UE CE信息，并将其转发到同一寻呼区域中的相邻eNB。 eNB在其UE UE列表上重复寻呼其他UE正常的UE。
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7.发明授权公开(公告)号：US11496199B2
公开(公告)日：2022-11-08
申请号：US16310111
申请日：2018-05-03
发明人： Yuanyuan Zhang , Chia-Hao Yu , Yu-Syuan Jheng
摘要： Aspects of the disclosure provide a method of beam failure handling. The method can include performing beam quality measurement of one or more beams transmitted from a base station (BS) at a user equipment (UE) in a beamformed wireless communication system, determining a beam failure occurs based on the beam quality measurement, and performing a beam recovery process that includes at least one of a contention-free beam recovery process or a contention-based beam recovery process. The one or more beams are used for transmitting physical downlink control channels (PDCCHs).
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公开(公告)号：US20190199615A1
公开(公告)日：2019-06-27
申请号：US16289986
申请日：2019-03-01
发明人： Yuanyuan Zhang , Chia-Hao Yu , Yu-Syuan Jheng , Aimin Justin Sang
CPC分类号： H04L43/16 , H04B7/0617 , H04B7/0695 , H04W16/28 , H04W16/32 , H04W72/085 , H04W74/0833 , H04W76/18 , H04W76/19
摘要： Apparatus and methods are provided to handle the intermittent disconnections in an mmW system. In one novel aspect, the beam tracking failure is determined upon detection of one or more tracking failure conditions. In one embodiment, the UE further considers potential recoveries to avoid frequent triggering of the beam-tracking failure condition. In another novel aspect, the UE performs one or more recovery procedures based on one or more recovery conditions. In one embodiment, the UE performs the initial alignment procedure to recover the connection. In another embodiment, the UE performs the beam-switching request procedure before triggers the initial alignment procedure. In one embodiment, timers are used to supervise the recovery procedures. In another embodiment, macro-assisted procedures are used for the beam-switching request procedure. In yet another novel aspect, the UE performs reestablishment of a new connection at the upper layer upon receiving the beam-tracking failure indicator.
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公开(公告)号：US20170195989A1
公开(公告)日：2017-07-06
申请号：US15451596
申请日：2017-03-07
发明人： Yuanyuan Zhang , Yu-Syuan Jheng , Feifei Sun , Li Chen , I-Kang Fu
摘要： Methods and apparatus are provided for paging transmission and reception for UEs requiring coverage extension/coverage enhancement. In one novel aspect, the UE reports the CE status to the MME. CE level related information and the corresponding cell ID are provided from eNB to MME. MME sends paging information including the repetition number to all eNBs in the corresponding tracking area when paging the UE. In another novel aspect, a paging area is used for CE UEs. The UE receives paging area information, notifies the network, and updates the stored paging area information upon detecting changes between the received and the stored paging areas. In another embodiment, the UE reports its CE status upon detecting CE status changes. The eNB stores UE CE information and forwards it to neighboring eNBs in the same paging area. The eNB pages UEs on its CE UE list with repetition while paging other UEs normally.
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公开(公告)号：US09622215B2
公开(公告)日：2017-04-11
申请号：US14918773
申请日：2015-10-21
发明人： Yuanyuan Zhang , Yu-Syuan Jheng , Feifei Sun , Li Chen , I-Kang Fu
摘要： Methods and apparatus are provided for paging transmission and reception for UEs requiring coverage extension/coverage enhancement. In one novel aspect, the UE reports the CE status to the MME. CE level related information and the corresponding cell ID are provided from eNB to MME. MME sends paging information including the repetition number to all eNBs in the corresponding tracking area when paging the UE. In another novel aspect, a paging area is used for CE UEs. The UE receives paging area information, notifies the network, and updates the stored paging area information upon detecting changes between the received and the stored paging areas. In another embodiment, the UE reports its CE status upon detecting CE status changes. The eNB stores UE CE information and forwards it to neighboring eNBs in the same paging area. The eNB pages UEs on its CE UE list with repetition while paging other UEs normally.
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