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公开(公告)号：US10057018B2
公开(公告)日：2018-08-21
申请号：US14870207
申请日：2015-09-30
Applicant: MEDIATEK INC.
Inventor： Shiang-Jiun Lin , Min Wu , Chien-Hwa Hwang , Xiangyang Zhuang
CPC classification number: H04L1/1861 , H04L1/1812 , H04L1/1822 , H04L1/1848 , H04L1/1854 , H04L5/1469 , H04W72/1289 , H04W76/28
Abstract: A method of DRX operation enhancement in adaptive TDD systems is proposed. A UE configures and enters DRX operation in an LTE/LTE-A mobile communication network. The UE obtains adaptive TDD configuration information from a base station. The adaptive TDD configuration information comprises an actual TDD configuration and a reference TDD configuration. The UE performs DRX timer counting and HARQ timer counting based on the reference TDD configuration. The UE also synchronizes DRX status with the base station. With the reference TDD configuration, it can avoid the potential misunderstanding between eNB and UE regarding DRX and HARQ RTT timing when TDD configuration changes.
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公开(公告)号：US10045351B2
公开(公告)日：2018-08-07
申请号：US14827419
申请日：2015-08-17
Applicant: MEDIATEK INC.
Inventor： Shiang-Jiun Lin , Pei-Kai Liao , Meng-Ying Tsai , Yih-Shen Chen
CPC classification number: H04W72/048 , H04L5/0053 , H04L5/0094 , H04L5/1469 , H04W72/0406 , H04W72/0453 , H04W72/082 , Y02D70/1262
Abstract: Systems and Methods for supporting carrier aggregation with different TDD configurations are proposed. In a first novel aspect, corresponding apparatus structure is described. In a second novel aspect, aggregation constraint is discussed. In a third novel aspect, transceiving mechanisms over multiple component carriers in DL/UL overlapped subframes are proposed. For simultaneous DL/UL transceiving, band combination indication methods are proposed, and HARQ feedback mechanisms are proposed. For non-simultaneous DL/UL transceiving, transceiving configuration methods are proposed, and the same HARQ feedback mechanisms are proposed. In a fourth novel aspect, CQI/RLM/RRM measurement mechanisms are proposed. In a fifth novel aspect, UE capability signaling mechanisms are proposed. The objective is to support flexible aggregation, to enhance DL data throughout, and to improve UL transmit power efficiency.
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公开(公告)号：US20170303148A1
公开(公告)日：2017-10-19
申请号：US15638366
申请日：2017-06-30
Applicant: MEDIATEK INC.
Inventor： Per Johan Mikael Johansson , Shiang-Jiun Lin , Yih-Shen Chen , William Plumb
CPC classification number: H04W24/04 , H04W24/10 , H04W36/0083 , H04W76/18
Abstract: A method of reporting UE measurement state information in RLF report is provided. A UE performs radio measurements of a serving cell and neighbor cells in a mobile communication network. The UE evaluates a measurement reporting criteria and attempts to access the network to deliver a measurement report if the criteria is met. The UE then detects a radio link failure or a handover failure event and reconnects to the network by performing RRC reestablishment or RRC establishment. Finally, the UE transmits a failure event report to the network. The failure event report comprises UE measurement state information corresponds to the failure event. The UE measurement state information helps the network to determine whether to apply corrective actions to mitigate the failure.
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公开(公告)号：US09661510B2
公开(公告)日：2017-05-23
申请号：US13688124
申请日：2012-11-28
Applicant: MEDIATEK, INC.
Inventor： Per Johan Mikael Johansson , Shiang-Jiun Lin , Yih-Shen Chen , William Plumb
CPC classification number: H04W24/02 , H04L41/0631 , H04L41/0686 , H04W24/04 , H04W36/00 , H04W36/14 , H04W36/36 , H04W76/19
Abstract: A method of inter-RAT failure event report is proposed. A UE detects a failure event in a first cell served by a first base station, and the first cell belongs to a first RAT. The failure event may include a radio link failure or a handover failure. The UE then performs an RRC establishment procedure with a second cell served by a second base station, and the second cell belongs to a second RAT. After the RRC establishment, the UE transmits a failure event report to the wireless network. The failure event can be a radio link failure, or be associated with a mobility command such as a handover command. By providing more reliable information in the failure event report than a network solution could provide, inter-RAT mobility performance can be improved.
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15.发明授权公开(公告)号：US09565628B2
公开(公告)日：2017-02-07
申请号：US14321810
申请日：2014-07-02
Applicant: MEDIATEK INC. , National Taiwan University
Inventor： Yi-Han Chiang , Yu-Chun Chen , Kun-Lin Ho , Po-Han Huang , Po-Han Chiang , Chen-Yi Chang , Wan-Jiun Liao , Shiang-Jiun Lin
CPC classification number: H04W52/0206 , H04W36/0072 , H04W36/165 , H04W84/045 , Y02D70/00
Abstract: Apparatus and method are provided for small cell energy saving. In one novel aspect, switch-off-request is broadcasted by the small cell detecting the low-load condition. The small cells upon receiving the switch-off-request message enter the frozen state, which prevents the small cells from switching off. In another novel aspect, the small cell in the low-load condition request measurement reports from the UEs. The UEs replies with the measurement-reports message, which includes the detected neighboring IDs and the UE's traffic load. The low-load small cell includes the information derived from the measurement-reports in the switch-off-request message. In another novel aspect, the small cell broadcasts the switch-on-request message. Upon receiving switch-on-acknowledge messages from switched-off neighboring small cells, the small cell selects one or more target cells to send the cell-activation-request. The switched-off small cells, upon receiving the request to switch-on, uses a cost function to determine whether to switch on.
Abstract translation: 提供了用于小电池节能的装置和方法。 在一个新颖的方面，关闭请求由检测低负载条件的小单元广播。 接收到关闭请求消息后的小小区进入冻结状态，防止小小区关闭。 在另一个新颖的方面，低负载条件下的小小区请求来自UE的测量报告。 UE用测量报告消息进行回复，该消息包括检测到的相邻ID和UE的业务负载。 低负载小小区包括从关闭请求消息中的测量报告导出的信息。 在另一个新颖的方面，小小区广播接通请求消息。 一旦接收到从关闭的相邻小小区的接通确认消息，小小区选择一个或多个目标小区来发送小区激活请求。 关闭小型小区在接收到启动请求后，使用成本函数来确定是否打开。
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Patent Agency Ranking
16.发明申请Mechanism for Radio Link Monitoring and Radio Link Failure Handling in Small Cell Networks 有权小型网络中无线链路监控和无线链路故障处理的机制公开(公告)号：US20150181479A1
公开(公告)日：2015-06-25
申请号：US14636441
申请日：2015-03-03
Applicant: MEDIATEK INC.
Inventor： Shiang-Jiun Lin , Yuanyuan Zhang , Per Johan Mikael Johansson
CPC classification number: H04W36/0072 , H04L5/001 , H04W24/04 , H04W36/0055 , H04W36/0061 , H04W76/15 , H04W76/19
Abstract: A method of radio link monitoring (RLM) and radio link failure (RLF) handling over a small cell network is proposed. In a wireless network, a user equipment (UE) establishes a radio resource control (RRC) connection with a base station (eNB), which is UE anchor. The UE applies carrier aggregation for multiple component carriers (CCs) configured as multiple serving cells. The aggregated serving cells are served by the anchor eNB and other drift eNB(s). The UE performs RLM/RLF over PCELL and SCELL belonging to corresponding cell groups. When RLF happens in a serving cell, the UE and the eNB apply certain actions over the serving cell or all serving cells in the group. RLF procedures in anchor eNB and in drift eNB are proposed. Both UE side and network side behaviors are included.
Abstract translation: 提出了一种通过小型网络进行无线电链路监测（RLM）和无线电链路故障（RLF）处理的方法。 在无线网络中，用户设备（UE）与作为UE锚的基站（eNB）建立无线资源控制（RRC）连接。 UE为配置为多个服务小区的多个分量载波（CC）应用载波聚合。 聚合的服务小区由锚eNB和其他漂移eNB服务。 UE在属于相应小区组的PCELL和SCELL上执行RLM / RLF。 当RLF发生在服务小区中时，UE和eNB对组中的服务小区或所有服务小区应用某些动作。 提出了锚点eNB和漂移eNB中的RLF过程。 包括UE侧和网络侧行为。
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公开(公告)号：US20150092630A1
公开(公告)日：2015-04-02
申请号：US14496148
申请日：2014-09-25
Applicant: MEDIATEK INC.
Inventor： Shiang-Jiun Lin , Xiangyang Zhuang , Chien-Hwa Hwang
CPC classification number: H04W48/20 , H04L5/14 , H04L5/143 , H04L5/1469 , H04W28/0268 , H04W36/0022 , H04W36/0061 , H04W36/0072 , H04W36/0083 , H04W36/30 , H04W48/08 , H04W48/18 , H04W68/02 , H04W88/06
Abstract: To support the new characteristics where FDD carriers and TDD carriers provide different services with different QoS or with different coverage or with different mobility robustness, UE enhancements of FDD-TDD network are proposed. In one embodiment, a dual mode UE in idle mode camps on a source cell and determines a target cell based on the cn domain and/or additional paging information contained in an enhanced paging message. In another embodiment, a dual mode UE may establish an RRC connection with a source cell with TDD carrier, and later is handover or redirected to a target cell supporting voice over IMS. The handover or redirection is based on the cn domain and/or the additional paging information contained in the enhanced paging message.
Abstract translation: 为了支持FDD载波和TDD载波提供具有不同QoS或具有不同覆盖或不同移动性鲁棒性的不同业务的新特性，提出了FDD-TDD网络的UE增强。 在一个实施例中，空闲模式的双模式UE在源小区上驻留，并且基于包含在增强寻呼消息中的cn域和/或附加寻呼信息来确定目标小区。 在另一个实施例中，双模式UE可以与具有TDD载波的源小区建立RRC连接，并且随后是切换或重定向到支持通过IMS的语音的目标小区。 切换或重定向基于包含在增强寻呼消息中的cn域和/或附加寻呼信息。
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公开(公告)号：US20130260745A1
公开(公告)日：2013-10-03
申请号：US13688124
申请日：2012-11-28
Applicant: MEDIATEK, INC.
Inventor： Per Johan Mikael Johansson , Shiang-Jiun Lin , Yih-Shen Chen , William Plumb
IPC: H04W24/02
CPC classification number: H04W24/02 , H04L41/0631 , H04L41/0686 , H04W24/04 , H04W36/00 , H04W36/14 , H04W36/36 , H04W76/19
Abstract: A method of inter-RAT failure event report is proposed. A UE detects a failure event in a first cell served by a first base station, and the first cell belongs to a first RAT. The failure event may include a radio link failure or a handover failure. The UE then performs an RRC establishment procedure with a second cell served by a second base station, and the second cell belongs to a second RAT. After the RRC establishment, the UE transmits a failure event report to the wireless network. The failure event can be a radio link failure, or be associated with a mobility command such as a handover command. By providing more reliable information in the failure event report than a network solution could provide, inter-RAT mobility performance can be improved.
Abstract translation: 提出了一种RAT间故障事件报告的方法。 UE检测由第一基站服务的第一小区中的故障事件，并且第一小区属于第一RAT。 故障事件可能包括无线电链路故障或切换失败。 然后，UE由第二基站服务的第二小区执行RRC建立过程，并且第二小区属于第二RAT。 在RRC建立之后，UE向无线网络发送故障事件报告。 故障事件可以是无线电链路故障，或者与诸如切换命令的移动性命令相关联。 通过在故障事件报告中提供比网络解决方案可以提供更可靠的信息，可以提高RAT间移动性能。
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公开(公告)号：US20200295824A1
公开(公告)日：2020-09-17
申请号：US16802507
申请日：2020-02-26
Applicant: MediaTek Inc.
Inventor： Gilles Charbit , Shiang-Jiun Lin
Abstract: Various examples and schemes pertaining to uplink (UL) transmission timing for non-terrestrial networking (NTN) are described. An apparatus receives, from a network, downlink control information (DCI) indicating an NTN offset for a scheduling delay. Accordingly, the apparatus performs one or more UL transmissions to a satellite with the scheduling delay which accounts for the
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公开(公告)号：US10257723B2
公开(公告)日：2019-04-09
申请号：US15638366
申请日：2017-06-30
Applicant: MEDIATEK INC.
Inventor： Per Johan Mikael Johansson , Shiang-Jiun Lin , Yih-Shen Chen , William Plumb
Abstract: A method of reporting UE measurement state information in RLF report is provided. A UE performs radio measurements of a serving cell and neighbor cells in a mobile communication network. The UE evaluates a measurement reporting criteria and attempts to access the network to deliver a measurement report if the criteria is met. The UE then detects a radio link failure or a handover failure event and reconnects to the network by performing RRC reestablishment or RRC establishment. Finally, the UE transmits a failure event report to the network. The failure event report comprises UE measurement state information corresponds to the failure event. The UE measurement state information helps the network to determine whether to apply corrective actions to mitigate the failure.
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