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公开(公告)号：US11229009B2
公开(公告)日：2022-01-18
申请号：US16535046
申请日：2019-08-07
Applicant: MediaTek Inc.
Inventor： Gilles Charbit , Li-Chuan Tseng , Shiang-Jiun Lin , Per Johan Mikael Johansson
Abstract: Various examples and schemes pertaining to narrowband reference signal (NRS) transmission on non-anchor carriers in narrowband IoT (NB-IoT) are described. A wireless network indicates a subset of one or more paging groups of user equipment (UEs) among a plurality of UEs in an NB-IoT cell. The wireless network then transmits one or more narrowband reference signals (NRSs) in one or more paging frames or one or more paging occasions associated with the subset of one or more paging groups.
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公开(公告)号：US20200313755A1
公开(公告)日：2020-10-01
申请号：US16833656
申请日：2020-03-29
Applicant: MediaTek Inc.
Inventor： Chiao-Yao Chuang , Gilles Charbit , Pradeep Jose , Abdelkader Medles , Xuan-Chao Huang , Shiang-Jiun Lin
Abstract: Various examples and schemes pertaining to utilization of assistance information for compensation for Doppler shift in non-terrestrial networks (NTNs) are described. A user equipment (UE) receives assistance information via an access link from a network node of an NTN such as a satellite or an unmanned aircraft system (UAS) platform. The UE then performs an operation with respect to communications with the network node based on the assistance information such as cell re-selection or beam switching.
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公开(公告)号：US20190159260A1
公开(公告)日：2019-05-23
申请号：US16192754
申请日：2018-11-15
Applicant: MediaTek Inc.
Inventor： Gilles Charbit , Shiang-Jiun Lin , Li-Chuan Tseng , Per Johan Mikael Johansson
Abstract: Various examples and schemes pertaining to NB-IoT physical random access channel (PRACH) resource partitioning and multiple grants in random access response (RAR) for early data transmission (EDT are described. A network node schedules multiple grants for EDT during a random access (RA) procedure with a user equipment (UE). The network node transmits to the UE a message indicating the multiple grants mapped to a maximum broadcast transport block size (TBS) configured for each of one or more preamble resource of a plurality of preamble resources. The UE calculates a TBS that fits an uplink (UL) data packet of the UE. The UE selects one or more PRACH resources for EDT for the TBS based on a wireless communication coverage of the UE by the network node. The UE transmits to the network node in the RA procedure a first message (Msg1) indicating the selected one or more PRACH resources.
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公开(公告)号：US09344234B2
公开(公告)日：2016-05-17
申请号：US14720932
申请日：2015-05-25
Applicant: MEDIATEK INC.
Inventor： Shiang-Jiun Lin , Per Johan Mikael Johansson , Yih-Shen Chen
CPC classification number: H04L5/001 , H04J11/005 , H04L5/006 , H04W24/02 , H04W36/0083 , H04W36/30 , H04W72/085 , H04W76/15 , H04W76/18
Abstract: A method of radio link monitoring (RLM) and radio link failure (RLF) handling over a secondary serving cell (SCELL) is proposed. In a wireless network, a user equipment (UE) establishes a radio resource control (RRC) connection with a base station (eNB). The UE applies carrier aggregation for multiple component carriers (CCs) configured as multiple serving cells. The UE performs radio link monitoring over a primary serving cell (PCELL). The UE also performs radio link monitoring over a secondary serving cell (SCELL). The SCELL belongs to a CC group of one or more CCs, and used as a reference cell for the CC group. When SCELL performance is below pre-defined criteria, the UE and the eNB apply certain actions over the SCELL. The proposed SCELL RLM/RLF handling prevents spurious and uncontrollable uplink SCELL transmission and interference to other UEs.
Abstract translation: 提出了一种在辅助服务小区（SCELL）上的无线电链路监测（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）建立与基站（eNB）的无线资源控制（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。 UE在主服务小区（PCELL）上执行无线电链路监视。 UE还在辅助服务小区（SCELL）上执行无线电链路监视。 SCELL属于一个或多个CC的CC组，用作CC组的参考细胞。 当SCELL性能低于预定义标准时，UE和eNB在SCELL上应用某些动作。 所提出的SCELL RLM / RLF处理可防止对其他UE发生杂散和不可控的上行SCELL传输和干扰。
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公开(公告)号：US20160044610A1
公开(公告)日：2016-02-11
申请号：US14873201
申请日：2015-10-02
Applicant: MEDIATEK INC.
Inventor： Chien-Hwa Hwang , Shiang-Jiun Lin , Min Wu , Xiangyang Zhuang
CPC classification number: H04W52/365 , H04L1/1861 , H04L5/001 , H04L5/1469 , H04W52/08 , H04W52/10 , H04W52/146 , H04W52/221 , H04W52/325 , H04W52/34 , H04W52/48 , H04W52/58 , H04W72/0413 , H04W72/042 , H04W72/0473
Abstract: A method of power headroom reporting in adaptive TDD systems is proposed. A UE obtains configuration information from a base station in an adaptive TDD system. Each radio frame comprises a plurality of subframes, which are configured into two or more subframe sets. The UE determines a power headroom reporting (PHR) triggering condition. The UE performs PHR for at least one of the configured two or more subframe sets upon satisfying the triggering condition. In one embodiment, the UE sends PH values for all subframe sets in the same PH reporting subframe. In another embodiment, the UE sends PH values for different subframe sets in different PHR reporting subframes.
Abstract translation: 提出了一种自适应TDD系统中功率余量报告的方法。 UE在自适应TDD系统中从基站获取配置信息。 每个无线电帧包括被配置成两个或多个子帧集合的多个子帧。 UE确定功率余量报告（PHR）触发条件。 UE在满足触发条件时，为配置的两个或多个子帧组中的至少一个执行PHR。 在一个实施例中，UE在相同的PH报告子帧中为所有子帧组发送PH值。 在另一个实施例中，UE在不同PHR报告子帧中发送不同子帧集合的PH值。
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Patent Agency Ranking
公开(公告)号：US20150256300A1
公开(公告)日：2015-09-10
申请号：US14720932
申请日：2015-05-25
Applicant: MEDIATEK INC.
Inventor： Shiang-Jiun Lin , Per Johan Mikael Johansson , Yih-Shen Chen
CPC classification number: H04L5/001 , H04J11/005 , H04L5/006 , H04W24/02 , H04W36/0083 , H04W36/30 , H04W72/085 , H04W76/15 , H04W76/18
Abstract: A method of radio link monitoring (RLM) and radio link failure (RLF) handling over a secondary serving cell (SCELL) is proposed. In a wireless network, a user equipment (UE) establishes a radio resource control (RRC) connection with a base station (eNB). The UE applies carrier aggregation for multiple component carriers (CCs) configured as multiple serving cells. The UE performs radio link monitoring over a primary serving cell (PCELL). The UE also performs radio link monitoring over a secondary serving cell (SCELL). The SCELL belongs to a CC group of one or more CCs, and used as a reference cell for the CC group. When SCELL performance is below pre-defined criteria, the UE and the eNB apply certain actions over the SCELL. The proposed SCELL RLM/RLF handling prevents spurious and uncontrollable uplink SCELL transmission and interference to other UEs.
Abstract translation: 提出了一种在辅助服务小区（SCELL）上的无线电链路监测（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）建立与基站（eNB）的无线资源控制（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。 UE在主服务小区（PCELL）上执行无线电链路监视。 UE还在辅助服务小区（SCELL）上执行无线电链路监视。 SCELL属于一个或多个CC的CC组，用作CC组的参考细胞。 当SCELL性能低于预定义标准时，UE和eNB在SCELL上应用某些动作。 所提出的SCELL RLM / RLF处理可防止对其他UE发生杂散和不可控的上行SCELL传输和干扰。
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公开(公告)号：US20130242898A1
公开(公告)日：2013-09-19
申请号：US13781395
申请日：2013-02-28
Applicant: MEDIATEK, INC.
Inventor： Per Johan Mikael Johansson , Shiang-Jiun Lin , Yih-Shen Chen , William Plumb
IPC: H04W24/02
Abstract: A method of failure event reporting for initial connection setup failure is proposed. In one embodiment, a UE first camps in RRC_IDLE mode in a cell served by a base station. The UE then detects a connection setup failure when performing a random access channel (RACH) procedure with the base station in an RRC connection attempt. The UE records a failure event report when the RACH procedure fails. Later, the UE transmits the failure event report to the network in RRC_CONNECTED mode. The failure event report comprises information that refers to the earlier RRC connection attempt. The failure event report also comprises available location information or available mobility measurements at the time the initial connection setup failure occurs. Based on the failure event report, the network can adopt corrective actions accordingly to mitigate the failure.
Abstract translation: 提出了一种初始连接建立失败的故障事件报告方法。 在一个实施例中，UE首先在由基站服务的小区中以RRC_IDLE模式驻留。 然后，在RRC连接尝试中，当与基站执行随机接入信道（RACH）过程时，UE检测连接建立失败。 当RACH过程失败时，UE记录故障事件报告。 稍后，UE以RRC_CONNECTED模式将故障事件报告发送到网络。 故障事件报告包括参考较早的RRC连接尝试的信息。 故障事件报告还包括在初始连接建立故障发生时可用的位置信息或可用的移动性测量。 根据故障事件报告，网络可采取相应的纠正措施，减轻故障。
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公开(公告)号：US20130083683A1
公开(公告)日：2013-04-04
申请号：US13629986
申请日：2012-09-28
Applicant: MEDIATEK, INC.
Inventor： Chien-Hwa Hwang , Shiang-Jiun Lin , Yih-Shen Chen
IPC: H04W24/00
CPC classification number: H04L5/0048 , H04L5/0053 , H04L5/0082 , H04L5/0094 , H04L5/0096 , H04L43/08 , H04W48/10 , H04W64/00 , H04W72/0406 , H04W72/1278
Abstract: A method of network-based positioning using sounding reference signal (SRS) is proposed. An eNodeB configures a number of parameters of a periodic SRS transmission for a user equipment (UE). The eNodeB then transmits SRS configuration data for SRS measurements performed by a location measurement unit (LMU). The SRS configuration data includes cell-specific SRS bandwidth configuration and UE-specific SRS bandwidth configuration. The SRS configuration data may further include a number of antenna ports for SRS transmission, SRS frequency hopping bandwidth configuration, information on whether SRS sequence-group hopping is enabled, and ΔSS when SRS sequence hopping is enabled. Upon receiving the SRS configuration data, the LMU is able to perform timing measurements over the received SRS signals from the UE. In one embodiment, the LMU detects SRS dropping to avoid performance degradation of the network-based positioning.
Abstract translation: 提出了一种使用探空参考信号（SRS）进行网络定位的方法。 eNodeB为用户设备（UE）配置周期性SRS传输的多个参数。 eNodeB然后发送用于由位置测量单元（LMU）执行的SRS测量的SRS配置数据。 SRS配置数据包括小区特定的SRS带宽配置和UE特定的SRS带宽配置。 SRS配置数据还可以包括用于SRS传输的多个天线端口，SRS跳频带宽配置，是否启用SRS序列组跳变的信息，以及当启用SRS序列跳频时的“Dgr”; SS。 在接收到SRS配置数据之后，LMU能够对来自UE的接收的SRS信号执行定时测量。 在一个实施例中，LMU检测到SRS丢弃，以避免基于网络的定位的性能下降。
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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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