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公开(公告)号：US11039477B2
公开(公告)日：2021-06-15
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：US20200267241A1
公开(公告)日：2020-08-20
申请号：US16790731
申请日：2020-02-14
Applicant: MediaTek Inc.
Inventor： Per Johan Mikael Johansson , Mukesh Chouhan , Pradeep Jose , Pavan Santhana Krishna Nuggehalli
Abstract: Various examples and schemes pertaining to simple Ethernet header compression are described. A first network node transmits a first packet with a full header to a second network node. The first network node determines whether a header compression context for the full header has been established by the second network node. In response to determining that the header compression context for the full header has been established by the second network node, the first network node transmits a second packet with a compressed header to the second network node. In response to determining that the header compression context for the full header has not been established by the second network node, the first network node transmits the second packet or a third packet with the full header to the second network node.
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公开(公告)号：US10602447B2
公开(公告)日：2020-03-24
申请号：US15200603
申请日：2016-07-01
Applicant: MEDIATEK INC.
Inventor： Chia-Chun Hsu , Per Johan Mikael Johansson
Abstract: An enhanced paging mechanism is provided for UEs waking up from a very long paging cycle to improve paging robustness and flexibility. Enhanced paging includes absolute time paging (ATP) and paging with extended wakeup time. For absolute time paging, a UE receives ATP configuration and uses the actual wall time to calculate paging occasion if a condition is satisfied. In one embodiment, the wall time is acquired from at least one of an internal UE clock, a GPS time, information broadcasted from the network, or information from a higher layer signaling. For paging with extended wakeup time, a UE applies a long paging cycle followed by multiple normal paging cycles after waking up from the long paging cycle. In one embodiment, the long paging cycle is infinite and the UE enters normal paging cycle only upon TAU-triggered paging or uplink traffic.
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公开(公告)号：US20200053695A1
公开(公告)日：2020-02-13
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：US10142253B2
公开(公告)日：2018-11-27
申请号：US15343551
申请日：2016-11-04
Applicant: MEDIATEK INC.
Inventor： Per Johan Mikael Johansson
IPC: H04L12/26 , H04L12/875 , H04L1/16 , H04W28/02
Abstract: A method of reliable and efficient information exchange between a first and a second entity, includes receiving data from the first entity by the second entity, determining if a response to the received data is required based on received control information, determining a response time during which the response is to be sent to the first entity (when a response is required), generating the response before expiration of the response time, and transmitting the response to the first entity before the expiration of the response time. The control information is received along with the data from the first entity. The control information includes an indication as to what type of response is required. In one example, the response is included in an unrelated scheduled transmission that is the next scheduled transmission from the second entity to the first entity.
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Patent Agency Ranking
公开(公告)号：US20180199267A1
公开(公告)日：2018-07-12
申请号：US15862591
申请日：2018-01-04
Applicant: MEDIATEK INC.
Inventor： Guan-Yu Lin , Chia-Chun Hsu , Per Johan Mikael Johansson
Abstract: Apparatus and methods are provided for on-demand system information (SI) delivery. In one novel aspect, an indicator in the minimum system information (MSI) indicates whether an SI or an SI group is delivered with broadcast or unicast. In one embodiment, the UE receives a MSI, obtains from the MSI the other SI (OSI) delivery mode indicator, and sends an on-demand SI request if the OSI delivery mode indicates the unicast delivery mode, otherwise acquires OSI information in a predefined or scheduled period if the OSI delivery mode indicates the broadcast delivery mode. In one embodiment, the delivery mode is unicast and the SI request is sent at a timing or resource explicitly configured in a SI change notification message. In another embodiment, the delivery mode is broadcast and updated SI is obtained based on the scheduling information included in the SI change notification message.
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公开(公告)号：US20170302421A1
公开(公告)日：2017-10-19
申请号：US15485468
申请日：2017-04-12
Applicant: MEDIATEK INC.
Inventor： Chia-Chun Hsu , Per Johan Mikael Johansson
CPC classification number: H04L5/0053 , H04L1/00 , H04W12/08 , H04W72/0413 , H04W72/042 , H04W72/0446 , H04W74/004 , H04W74/0833 , H04W76/10
Abstract: In order to establish a RRC connection and perform data transmission over an established DRB, a UE is required to complete a network entry procedure. For control plane latency (CPL), besides a random-access procedure, UE triggers two 3-way handshakes with eNB for RRC setup procedure and with MME for NAS setup procedure, which comprises a sequential execution of a list of individual signaling and processing. In one novel aspect, for latency reduction, the sequential execution is broken as to allow overlapping of the two procedures, e.g. lump RRC and NAS request under a new flexible RAN architecture, i.e. eNB/MME of the new RAT can be collocated. Lump request also requires certain SNR, so a big enough uplink grant can be scheduled. For the responses, out-of-sequence delivery is also possible as long as the execution dependency is clearly specified.
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公开(公告)号：US09730090B2
公开(公告)日：2017-08-08
申请号：US14078789
申请日：2013-11-13
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：US09713025B2
公开(公告)日：2017-07-18
申请号：US14251936
申请日：2014-04-14
Applicant: MEDIATEK INC.
Inventor： Per Johan Mikael Johansson , Yih-Shen Chen , Chia-Chun Hsu , Michael Roberts
Abstract: Methods of MDT information logging and reporting are provided. In one embodiment, a method is provided to resolve shortcomings of prior art by correlating UL measurements with QoS information to enable UL performance analysis and accurate detection of coverage problems. In another embodiment, a method is provided to resolve the shortcomings of the prior art by making DL measurements and location information collecting or logging conditional on UL measurements.
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公开(公告)号：US20170134297A1
公开(公告)日：2017-05-11
申请号：US15343551
申请日：2016-11-04
Applicant: MEDIATEK INC.
Inventor： Per Johan Mikael Johansson
IPC: H04L12/875 , H04L1/16 , H04W28/02
CPC classification number: H04L47/564 , H04L1/16 , H04W28/0278 , H04W80/02
Abstract: A method of reliable and efficient information exchange between a first and a second entity, includes receiving data from the first entity by the second entity, determining if a response to the received data is required based on received control information, determining a response time during which the response is to be sent to the first entity (when a response is required), generating the response before expiration of the response time, and transmitting the response to the first entity before the expiration of the response time. The control information is received along with the data from the first entity. The control information includes an indication as to what type of response is required. In one example, the response is included in an unrelated scheduled transmission that is the next scheduled transmission from the second entity to the first entity.
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