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公开(公告)号：US11147009B2
公开(公告)日：2021-10-12
申请号：US17262977
申请日：2019-07-12
Applicant: MEDIATEK INC.
Inventor： Guan-Yu Lin , Yuanyuan Zhang , Chia-Chun Hsu
Abstract: A User Equipment (UE) including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from a cell. The controller receives a System Information Block type1 (SIB1) comprising first configuration of a bandwidth size of an initial Downlink (DL) Bandwidth Part (BWP) from the cell via the wireless transceiver, and applies the first configuration for communication with the cell via the wireless transceiver in response to the UE in a Radio Resource Control (RRC) idle or inactive state successfully completing a random access procedure.
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公开(公告)号：US10903877B2
公开(公告)日：2021-01-26
申请号：US15802681
申请日：2017-11-03
Applicant: MEDIATEK INC.
Inventor： Chia-Hao Yu , Yuanyuan Zhang , Ming-Po Chang , Guo Hau Gau , Jiann-Ching Guey
Abstract: Apparatus and methods are provided for initial access in the multi-beam operation. In one novel aspect, the UE receives multiple response messages and selects one message as the response message. In one embodiment, the UE selects a subset of a configured UL resources, transmits a first message, wherein the first message is transmitted one or more times on each of the selected set of UL resources, receives one or more first-message-response messages from the BS, and selects one response message, wherein the selected response message indicates a corresponding BS RX resource, which is used by the UE for subsequent communication with the BS. In one embodiment, the selection of UL resources is at least based on transmitting spatial characteristics of the BS, the UE or both, which indicates whether the BS/UE is reciprocal, partial reciprocal or non-reciprocal.
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公开(公告)号：US20200220670A1
公开(公告)日：2020-07-09
申请号：US16811931
申请日：2020-03-06
Applicant: MEDIATEK INC.
Inventor： Yu-Syuan Jheng , Yuanyuan Zhang , Yuan-Wen Ting , Pei-Shan Kao
Abstract: Blockage detection in a wireless transmit receive unit includes performing a radio link measurement on one or more reference signals. The radio link measurement is compared to a comparing threshold and a blockage condition is indicated in response to the comparing of the radio link measurement meeting a threshold criterion on the comparing threshold.
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公开(公告)号：US20190289665A1
公开(公告)日：2019-09-19
申请号：US16353491
申请日：2019-03-14
Applicant: MediaTek Inc.
Inventor： Weidong Yang , Chia-Chun Hsu , Yih-Shen Chen , Pavan Santhana Krishna Nuggehalli , Lung-Sheng Tsai , Yuanyuan Zhang
Abstract: A first network node receives downlink signaling from a second network node in a first occasion, received on a first carrier in a first time slot, and a second occasion, which is received either on the first carrier in a second time slot after the first time slot or on a second carrier in the first time slot or the second time slot. A MAC control element (CE) in the downlink signaling received in the first and second occasions contain a first timing padding value and a second timing padding value, respectively. A predetermined time slot is equally indicated by the first time slot plus the first timing padding value as well as by the second time slot plus the second timing padding value. The first network node effects one or more configurations in the predetermined time slot responsive to receiving the downlink signaling in the first and second occasions.
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公开(公告)号：US20180123650A1
公开(公告)日：2018-05-03
申请号：US15802681
申请日：2017-11-03
Applicant: MEDIATEK INC.
Inventor： Chia-Hao Yu , Yuanyuan Zhang , Ming-Po Chang , Guo Hau Gau , Jiann-Ching Guey
IPC: H04B7/0408 , H01Q25/04 , H01Q25/00
CPC classification number: H04B7/0408 , H01Q25/002 , H01Q25/04 , H04B7/0695 , H04B7/088 , H04W74/006 , H04W74/0833
Abstract: Apparatus and methods are provided for initial access in the multi-beam operation. In one novel aspect, the UE receives multiple response messages and selects one message as the response message. In one embodiment, the UE selects a subset of a configured UL resources, transmits a first message, wherein the first message is transmitted one or more times on each of the selected set of UL resources, receives one or more first-message-response messages from the BS, and selects one response message, wherein the selected response message indicates a corresponding BS RX resource, which is used by the UE for subsequent communication with the BS. In one embodiment, the selection of UL resources is at least based on transmitting spatial characteristics of the BS, the UE or both, which indicates whether the BS/UE is reciprocal, partial reciprocal or non-reciprocal.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20170374703A1
公开(公告)日：2017-12-28
申请号：US15697620
申请日：2017-09-07
Applicant: MEDIATEK INC.
Inventor： Aimin Justin Sang , Yuanyuan Zhang , Yu-Syuan Jheng
Abstract: Millimeter-wave (mmWave) band communication is a very promising technology for 5G small cells. In practice, such a new system will coexist with legacy or evolved microwave band systems, such as E-UTRAN LTE macro-cell cellular systems, for a long time to come. Considering the typical scenarios where a macro cell offers umbrella coverage for clusters of small cells, several control plane (C-plane) architectural choices of macro-assisted 5G mmWave systems from both UE and network's perspectives are evaluated. Termed macro-assisted mmWave, an effective end-to-end integration of the futuristic mmWave small cells and microwave macro cells shall promise the benefits of both yet avoid individual limitations. The proposed On-demand Reconfiguration C-Place Architecture (ORCA) for Macro-assisted Millimeter Wave (mmWave) small cells is designed to meet 5G expectations of dense deployment of small cells and UEs and beamformed intermittent Gbps links.
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公开(公告)号：US10555355B2
公开(公告)日：2020-02-04
申请号：US15697620
申请日：2017-09-07
Applicant: MEDIATEK INC.
Inventor： Aimin Justin Sang , Yuanyuan Zhang , Yu-Syuan Jheng
Abstract: Millimeter-wave (mmWave) band communication is a very promising technology for 5G small cells. In practice, such a new system will coexist with legacy or evolved microwave band systems, such as E-UTRAN LTE macro-cell cellular systems, for a long time to come. Considering the typical scenarios where a macro cell offers umbrella coverage for clusters of small cells, several control plane (C-plane) architectural choices of macro-assisted 5G mmWave systems from both UE and network's perspectives are evaluated. Termed macro-assisted mmWave, an effective end-to-end integration of the futuristic mmWave small cells and microwave macro cells shall promise the benefits of both yet avoid individual limitations. The proposed On-demand Reconfiguration C-Place Architecture (ORCA) for Macro-assisted Millimeter Wave (mmWave) small cells is designed to meet 5G expectations of dense deployment of small cells and UEs and beamformed intermittent Gbps links.
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公开(公告)号：US20180343662A1
公开(公告)日：2018-11-29
申请号：US16054885
申请日：2018-08-03
Applicant: MEDIATEK INC.
Inventor： Aimin Justin Sang , Yuanyuan Zhang
Abstract: A novel Macro-assisted Multi-Connectivity (MC) mobility scheme for UEs traversing clusters of (mmWave) small cells (small-BS or SBS) under the coverage of the same 5G or LTE Macro-cell (macro-BS or MBS) is proposed. It keeps the same Control/User split scheme and C-Plane anchor at MBS, same as in LTE Dual Connectivity (DuCo or DC), yet extending DuCo with a multi-connectivity split bearer user plane. For example, MBS adopts a multi-way packet data convergence protocol (PDCP) bearer split based on routing weighted by channel quality, SBS's resource availability, etc. with or without inter-BS flow control. Utilizing the MC user plane, a macro-assisted make-before-break MC mobility can be enabled.
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公开(公告)号：US20180227899A1
公开(公告)日：2018-08-09
申请号：US15888250
申请日：2018-02-05
Applicant: MEDIATEK INC.
Inventor： Chia-Hao Yu , Yuanyuan Zhang , Ming-Po Chang , Jiann-Ching Guey
IPC: H04W72/04 , H04W74/08 , H04B17/318
Abstract: A method of beam failure recovery for multi-beam operation in wireless communication systems with beamforming is proposed. Specifically, a four-step beam failure recovery procedure is proposed. In a first step of beam failure detection, UE detects a beam failure condition of the original serving beam pair link. In a second step of new candidate beam identification, UE performs measurements for candidate beam selection. In a third step of beam failure recovery request (BFRQ) transmission, UE transmits a BFRQ message to BS upon the triggering condition for BFRQ transmission is satisfied. In a fourth step of monitoring BS response, UE monitors BS response to decide the success or failure of the beam failure recovery.
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公开(公告)号：US20170054479A1
公开(公告)日：2017-02-23
申请号：US15345752
申请日：2016-11-08
Applicant: MEDIATEK INC.
Inventor： Aimin Justin Sang , Chia-Hao Yu , Yuanyuan Zhang , Jiann-Ching Guey
CPC classification number: H04B7/0408 , H04B7/0619 , H04B7/0695 , H04B7/0697 , H04J4/00 , H04J13/00 , H04L1/0003 , H04W36/0055 , H04W72/042 , H04W72/0446 , H04W72/0453 , H04W72/046
Abstract: A method of providing spatial diversity for critical data delivery in a beamformed mmWave smallcell is proposed. The proposed spatial diversity scheme offers duplicate or incremental data/signal transmission and reception by using multiple different beams for the same source and destination. The proposed spatial diversity scheme can be combined with other diversity schemes in time, frequency, and code, etc. for the same purpose. In addition, the proposed spatial diversity scheme combines the physical-layer resources associated with the beams with other resources of the same or different protocol layers. By spatial signaling repetition to avoid Radio Link Failure (RLF) and Handover Failure (HOF), mobility robustness can be enhanced. Mission-critical and/or time-critical data delivery can also be achieved without relying on retransmission.
Abstract translation: 提出了一种在波束形成的mmWave小单元中提供关键数据传输的空间分集的方法。 所提出的空间分集方案通过对于相同的源和目的地使用多个不同的波束来提供重复的或增量的数据/信号发射和接收。 为了相同的目的，提出的空间分集方案可以与时间，频率和代码等的其他分集方案组合。 此外，所提出的空间分集方案将与波束相关联的物理层资源与相同或不同协议层的其他资源相结合。 通过空间信令重复以避免无线电链路故障（RLF）和切换故障（HOF），可以提高移动性鲁棒性。 关键任务和/或时间关键的数据传送也可以在不依赖重传的情况下实现。
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