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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：US10524256B2
公开(公告)日：2019-12-31
申请号：US15473844
申请日：2017-03-30
Applicant: MEDIATEK INC.
Inventor： Guan-Yu Lin , Per Johan Mikael Johansson , Pavan Santhana Krishna Nuggehalli , Chia-Chun Hsu
IPC: H04L29/06 , H04W72/04 , H04W24/08 , H04W24/10 , H04L12/801 , H04L12/841 , H04L12/835 , H04W72/12
Abstract: A method of adaptive transmission time interval (TTI) tuning based on TCP information is proposed. First, a procedure for TCP information delivery between eNB and TCP sender/TCP receiver is disclosed. The TCP information comprises TCP status, TCP congestion window (CWND) size, TCP round trip delay, TCP SS threshold, TCP index, and TCP event indication. Second, various methods for eNB to configure TTI with UE TCP information and/or buffer information are disclosed. A first method is saturation detection which includes buffer status based saturation detection and CWND based saturation detection. A second method is Greedy Buffer Clearing. A third method is TCP state based TTI selection method.
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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：US10257772B2
公开(公告)日：2019-04-09
申请号：US15674518
申请日：2017-08-11
Applicant: MEDIATEK INC.
Inventor： Per Johan Mikael Johansson , Chia-Chun Hsu , Guan-Yu Lin
Abstract: A method of system information (SI) acquisition with reduced signaling overhead is proposed. To reduce SI broadcast overhead, the quantity of periodic SI broadcast and the frequency of on-demand SI acquisition need to be reduced. In order to reduce the quantity of periodic SI broadcasting, on-demand SI delivery is enabled. With on-demand SI delivery, signaling overhead is proportional to the frequency of SI acquisition. From the network side, the base stations proactively provide SI delivery options and delivers SI over unicast or scheduled broadcast. From the UE side, UE determines how to acquire SI, i.e., by listening to broadcast or by sending an on-demand request via existing procedures such as a random-access procedure over a random-access channel (RACH).
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公开(公告)号：US10075381B2
公开(公告)日：2018-09-11
申请号：US14606913
申请日：2015-01-27
Applicant: MEDIATEK INC.
Inventor： Chia-Chun Hsu , Per Johan Mikael Johansson
IPC: H04W28/02 , H04L12/819 , H04W72/04 , H04W72/12 , H04W28/08 , H04L12/833
CPC classification number: H04L47/21 , H04L47/31 , H04W28/0278 , H04W28/08 , H04W28/085 , H04W72/0486 , H04W72/1284
Abstract: Apparatus and methods are provided to enhance BSR and LCP procedures for the dual connectivity system. In one novel aspect, the BSR is handled for each MAC entity according to one or more allocation rules. In one embodiment, the allocation rule is configured by the network. In another embodiment, the allocation rule is determined by the UE based on historic statics. In yet another embodiment, the allocation rule is determined by the UE based on information from the network. In one embodiment, the allocation rule indicates percentage of traffic allocated to each MAC entity. In another novel aspect, LCP is performed independently for each MAC entity if the split bearer is configured and the prioritized bit rate (PBR) and the bucket size duration (BSD) are signaled for each eNB. In one embodiment, separate sets of LCG variables are maintained independently for each MAC entity.
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Patent Agency Ranking
公开(公告)号：US20180110061A1
公开(公告)日：2018-04-19
申请号：US15845760
申请日：2017-12-18
Applicant: MEDIATEK INC.
Inventor： Yih-Shen Chen , Per Johan Mikael Johansson
CPC classification number: H04W72/1231 , H04B7/0626 , H04W24/08 , H04W36/0088 , H04W36/0094 , H04W48/02 , H04W72/0406 , H04W72/082 , H04W72/085 , H04W74/0833 , H04W74/0866 , H04W76/10 , H04W76/28 , H04W84/045
Abstract: A method of inter-cell interference coordination is provided for UE measurements and network access procedure. In a first embodiment, a UE in idle mode performs measurements on received radio signals applying a simplified radio resource restriction for interference coordination. The UE determines the restricted radio resource without receiving explicit measurement configuration. In a second embodiment, during various phases of a network access procedure, the UE indicates its interference status and/or additional interference information to its serving base station to enhance interference coordination. In a third embodiment, the UE in connected mode performs measurements on both interference-protected transmission resources and non-interference-protected transmission resources. The UE measurement results are used for scheduling, radio link monitoring, and/or mobility management to increase radio spectrum efficiency and to improve user experience.
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公开(公告)号：US20180049107A1
公开(公告)日：2018-02-15
申请号：US15674518
申请日：2017-08-11
Applicant: Mediatek Inc.
Inventor： Per Johan Mikael Johansson , Chia-Chun Hsu , Guan-Yu Lin
CPC classification number: H04W48/10 , H04W48/14 , H04W72/005 , H04W72/12 , H04W74/0833 , H04W88/02
Abstract: A method of system information (SI) acquisition with reduced signaling overhead is proposed. To reduce SI broadcast overhead, the quantity of periodic SI broadcast and the frequency of on-demand SI acquisition need to be reduced. In order to reduce the quantity of periodic SI broadcasting, on-demand SI delivery is enabled. With on-demand SI delivery, signaling overhead is proportional to the frequency of SI acquisition. From the network side, the base stations proactively provide SI delivery options and delivers SI over unicast or scheduled broadcast. From the UE side, UE determines how to acquire SI, i.e., by listening to broadcast or by sending an on-demand request via existing procedures such as a random-access procedure over a random-access channel (RACH).
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公开(公告)号：US20170290005A1
公开(公告)日：2017-10-05
申请号：US15473844
申请日：2017-03-30
Applicant: MEDIATEK INC.
Inventor： Guan-Yu Lin , Per Johan Mikael Johansson , Pavan Santhana Krishna Nuggehalli , Chia-Chun Hsu
Abstract: A method of adaptive transmission time interval (TTI) tuning based on TCP information is proposed. First, a procedure for TCP information delivery between eNB and TCP sender/TCP receiver is disclosed. The TCP information comprises TCP status, TCP congestion window (CWND) size, TCP round trip delay, TCP SS threshold, TCP index, and TCP event indication. Second, various methods for eNB to configure TTI with UE TCP information and/or buffer information are disclosed. A first method is saturation detection which includes buffer status based saturation detection and CWND based saturation detection. A second method is Greedy Buffer Clearing. A third method is TCP state based TTI selection method.
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公开(公告)号：US09629083B2
公开(公告)日：2017-04-18
申请号：US14833231
申请日：2015-08-24
Applicant: MEDIATEK INC.
Inventor： Per Johan Mikael Johansson , Chia-Chun Hsu
CPC classification number: H04W52/0225 , H04W52/0216 , H04W52/0251 , Y02D70/00 , Y02D70/124 , Y02D70/1262 , Y02D70/24
Abstract: A method of user equipment (UE) indication of traffic-related information to network is provided. The method comprises a UE determining a traffic indicator and transmitting the traffic indicator to a base station. In one embodiment, the traffic indicator indicates either that default power consumption is preferred or low power consumption is preferred. For example, when the UE is in background traffic or sparse traffic, low power consumption is preferred. In another embodiment, the traffic indicator indicates a time pattern of the traffic history. From the network perspective, upon receiving and evaluating information contained in the traffic indicator, the network triggers a QoS modification procedure by applying one or more QoS modification algorithms.
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公开(公告)号：US20170026861A1
公开(公告)日：2017-01-26
申请号：US15214295
申请日：2016-07-19
Applicant: MEDIATEK INC.
Inventor： Li-Chuan Tseng , Chia-Chun Hsu , Per Johan Mikael Johansson
IPC: H04W24/08 , H04B17/318 , H04W76/04
CPC classification number: H04W24/08 , H04B17/318 , H04W36/0088 , H04W76/28
Abstract: A method of mobility management with smart measurement is proposed. The present invention addresses modifications on RRM measurements as well as mobility control procedures in order to improve mobility performance for UE configured with longer connected mode DRX cycle. Since the poor mobility performance when applying extended DRX cycle mainly results from reduced number of measurements, one solution is to dynamically adjust the measurement interval so as to trigger the measurement reporting in time.
Abstract translation: 提出了一种采用智能测量的移动性管理方法。 本发明解决了对RRM测量以及移动性控制过程的修改，以便改进配置有较长连接模式DRX周期的UE的移动性能。 由于在应用扩展DRX周期时移动性差的主要原因是测量次数减少，所以一个解决方案是动态调整测量间隔，以便及时触发测量报告。
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