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31. 发明申请

WO2017133699A1 PEAK TO AVERAGE POWER RATIO REDUCTION IN ELAA 审中-公开
标题翻译：在ELAA平均降低功率比
公开(公告)号：WO2017133699A1
公开(公告)日：2017-08-10
申请号：PCT/CN2017/072954
申请日：2017-02-06
申请人： MEDIATEK INC.
发明人： YANG, Weidong , LI, Chien-Chang , CHEN, Bo-Si
IPC分类号： H04W72/04
CPC分类号： H04L27/262 , H04B7/0639 , H04J11/00 , H04J2211/008 , H04L5/0041 , H04L5/0092 , H04L27/2614 , H04W16/14 , H04W72/0413 , H04W72/0453
摘要： A method of uplink transmission to reduce peak-to-average power ratio (PAPR) in enhanced licensed assisted access (eLAA) is proposed. New design of Physical Uplink Control Channel (PUCCH) and Physical Uplink Shared Channel (PUSCH) is proposed. Across frequency domain of the channel bandwidth, multiple resource interlaces are allocated for different UEs for uplink PUCCH/PUSCH transmission to satisfy the occupied channel bandwidth requirement for unlicensed carrier access. In addition, uplink transmission with co-phasing terms are applied to reduce PAPR of the resulted waveform.
摘要翻译：提出了一种上行链路传输以降低增强型授权辅助接入（eLAA）中的峰值平均功率比（PAPR）的方法。提出了物理上行链路控制信道（PUCCH）和物理上行链路共享信道（PUSCH）的新设计。在信道带宽的整个频率范围内，为不同的UE分配多个资源交织用于上行链路PUCCH / PUSCH传输，以满足对于非授权载波接入的占用信道带宽要求。另外，应用具有共相条件的上行链路传输以降低所得波形的PAPR。

32. 发明申请

WO2016146061A1 METHODS OF BEACON TRANSMISSION FOR MEASUREMENTS IN OPPORTUNISTIC SPECTRUM ACCESS 审中-公开
标题翻译：运动频谱测量中信号传输的方法
公开(公告)号：WO2016146061A1
公开(公告)日：2016-09-22
申请号：PCT/CN2016/076433
申请日：2016-03-16
申请人： MEDIATEK INC.
发明人： LIAO, Pei-Kai , YANG, Weidong , LI, Chien-Chang , CHEN, Bo-Si
IPC分类号： H04W74/00
CPC分类号： H04W16/14 , H04W24/00 , H04W24/10 , H04W48/00 , H04W72/02 , H04W72/04 , H04W74/0808
摘要： Periodic Radio Resource Management (RRM) reporting from user equipments (UEs) is beneficial for a network to efficiently select a carrier with a cleaner channel to serve the UEs. To enable periodic RRM reporting from UEs, periodic beacon signal transmission for UE measurements is necessary. However, in a shared spectrum, precise periodic transmission cannot be guaranteed due to channel contention. A method of transmission with periodic time windows for beacon signal transmission is proposed to resolve potential issues. Under the proposed solution, beacon signal can be transmitted in a certain periodic fashion without frequent physical layer signaling. Furthermore, periodic beacon signal transmission for measurements can be kept with low transmission failure rate due to channel contention.
摘要翻译：来自用户设备（UE）的定期无线资源管理（RRM）报告有利于网络有效地选择具有更干净信道的载波来服务于UE。为了实现来自UE的周期性RRM报告，需要用于UE测量的周期性信标信号传输。然而，在共享频谱中，由于信道争用，无法保证精确的周期性传输。提出了一种用于信标信号传输的具有周期性时间窗的传输方法来解决潜在的问题。在提出的解决方案下，信标信号可以以一定的周期性方式发送，而不需要频繁的物理层信令。此外，由于信道争用，用于测量的周期性信标信号传输可以保持低传输故障率。

33. 发明申请

WO2015043504A1 METHODS OF DISCOVERY AND MEASUREMENTS FOR SMALL CELLSINOFDM/OFDMASYSTEMS 审中-公开
标题翻译：发现和测量小型细胞/子系统的方法
公开(公告)号：WO2015043504A1
公开(公告)日：2015-04-02
申请号：PCT/CN2014/087542
申请日：2014-09-26
申请人： MEDIATEK INC.
发明人： LIAO, Pei-Kai , CHIANG, Hsiao-Lan , LI, Chien-Chang , ZHUANG, Xiangyang
IPC分类号： H04W36/30
CPC分类号： H04J11/005 , H04J11/0079 , H04J2011/0096 , H04L5/0007 , H04L5/005 , H04L5/0073 , H04L27/2613 , H04W24/08 , H04W48/10 , H04W48/16 , H04W88/02
摘要： A method of small cell discovery and RSRP/RSRQ measurements in OFDM/OFDMA systems is proposed. A discovery reference signal (DRS) with low transmission frequency is introduced to support small cell detection within a short time, multiple small cell discovery, and accurate measurement of multiple small cells. The DRS consists of one or multiple reference signal types with the functionalities including timing and frequency synchronization, cell detection, RSRP/RSSI/RSRQ measurements, and interference mitigation. RE muting is configured for the DRS to reduce interference level from data to DRS for discovery and RSRP/RSRQ measurements for small cells.
摘要翻译：提出了OFDM / OFDMA系统中小信元发现和RSRP / RSRQ测量的方法。引入具有低传输频率的发现参考信号（DRS），以支持短时间内的小细胞检测，多个小细胞发现以及多个小细胞的精确测量。 DRS由一个或多个参考信号类型组成，其功能包括定时和频率同步，信元检测，RSRP / RSSI / RSRQ测量和干扰减轻。为DRS配置RE静音，以减少数据到DRS的干扰等级，以便小型小区进行发现和RSRP / RSRQ测量。

34. 发明公开

EP3596862A1 PHYSICAL DOWNLINK CONTROL CHANNEL DESIGN FOR NR SYSTEMS 有权
公开(公告)号：EP3596862A1
公开(公告)日：2020-01-22
申请号：EP18772612.0
申请日：2018-03-22
申请人： MediaTek Inc
发明人： HWANG, Chien-Hwa , LI, Chien-Chang , LIAO, Yi-Ju , LIAO, Pei-Kai , YANG, Weidong
IPC分类号： H04L1/00 , H04W72/00

35. 发明公开

EP3491771A1 METHOD AND APPARATUS OF DATA TRANSMISSION BY SETTING SEGMENTATION THRESHOLD BASED ON TRANSMISSION TIME INTERVAL 审中-公开
公开(公告)号：EP3491771A1
公开(公告)日：2019-06-05
申请号：EP17838785.8
申请日：2017-08-11
申请人： MediaTek Inc.
发明人： YANG, Weidong , CHEN, Yih-Shen , LI, Chien-Chang , CHEN, Bo-Si
IPC分类号： H04L5/00 , H04W28/06

36. 发明公开

EP3636022A1 RESOURCE SHARING BETWEEN PDCCH AND PDSCH 审中-公开
公开(公告)号：EP3636022A1
公开(公告)日：2020-04-15
申请号：EP18793942.6
申请日：2018-05-04
申请人： Mediatek Inc.
发明人： LI, Chien-Chang , LIAO, Yi-Ju , HWANG, Chien-Hwa , LIAO, Pei-Kai
IPC分类号： H04W72/04

37. 发明公开

EP3613247A1 GROUP COMMON PDCCH DESIGN IN NR 无效
公开(公告)号：EP3613247A1
公开(公告)日：2020-02-26
申请号：EP18794133.1
申请日：2018-05-07
申请人： Mediatek Inc.
发明人： LI, Chien-Chang , LIAO, Yi-Ju , HWANG, Chien-Hwa , LIAO, Pei-Kai
IPC分类号： H04W72/04

38. 发明公开

EP3395114A1 CHANNEL ACCESS PROCEDURE AND QOS PROVISIONING FOR UPLINK LAA 有权转让
公开(公告)号：EP3395114A1
公开(公告)日：2018-10-31
申请号：EP17752684.5
申请日：2017-02-16
申请人： MediaTek Inc.
发明人： YANG, Weidong , CHEN, Bo-Si , LI, Chien-Chang , CHEN, Yih-Shen , NUGGEHALLI, Pavan Santhana Krishna
IPC分类号： H04W74/04
CPC分类号： H04W74/04 , H04W16/14 , H04W72/042 , H04W72/087 , H04W72/1268 , H04W72/1289 , H04W74/006 , H04W74/0808 , H04W76/10
摘要： A method of channel access procedure and QoS provisioning is proposed. When more than one user equipments (UEs) contend uplink transmission for a given time slot in an unlicensed band, uplink listen-before-talk (LBT) scheme should perform in a proper way to reflect service prioritization. The base station first determines the Channel Access Priority (CAP) for uplink LBT, and then signals such CAP to the UE via PDCCH. Upon receiving the CAP, the UE performs LBT procedure with corresponding CAP before uplink transmission. For example, the CAP can be determined based on QoS class identifier (QCI) of the radio bearer or based on the MAC layer logical channel prioritization (LCP).

39. 发明公开

EP3342212A1 MULTIPLEXING DRS WITHIN A TRANSMISSION BURST FOR OPPORTUNISTIC SPECTRUM ACCESS 审中-公开
公开(公告)号：EP3342212A1
公开(公告)日：2018-07-04
申请号：EP16850400.9
申请日：2016-09-30
申请人： Mediatek Inc.
发明人： LI, Chien-Chang , YANG, Weidong , LIAO, Pei-Kai , CHEN, Bo-Si
IPC分类号： H04W48/16
CPC分类号： H04L5/0048 , H04L5/0033 , H04L5/0044 , H04L5/0053 , H04L5/0082 , H04L27/0006 , H04W48/16 , H04W72/042 , H04W72/0446 , H04W88/02
摘要： Methods and apparatus are provided for multiplexing DRS within a transmission burst for opportunistic spectrum access. In one novel aspect, DRS is not transmitted in a fractional subframe within a TXOP. In one embodiment, if the starting fractional subframe, which contains initial signal, occurs in a configured DMTC, DRS is transmitted in the first subframe next to the starting fractional subframe. In another embodiment, if DMTC starts from a complete subframe within a TXOP, DRS is transmitted in the first candidate position within a DMTC. In another novel aspect, in the DRS subframe, PDSCH is allocated in the PRBs outside the central PRBs (six or twenty-five PRBs). In one embodiment, the reservation signal can be used to satisfy the requirement of occupied bandwidth and continuity transmission. In another embodiment, the free REs in central PRBs carry the system information when required on the unlicensed band.

40. 发明公开

EP4027728A1 EFFICIENT WIDE BANDWIDTH OPERATION AND EFFICIENT UE-SPECIFIC RF BANDWIDTH ADAPTATION 审中-实审
公开(公告)号：EP4027728A1
公开(公告)日：2022-07-13
申请号：EP22158325.5
申请日：2018-01-11
申请人： MediaTek Inc.
发明人： LIAO, Pei-Kai , CHEN, Tao , LI, Chien-Chang
IPC分类号： H04W72/04 , H04L5/00 , H04W72/00 , H04W74/00
摘要： In one novel aspect, a plurality of synchronization signal (SS) anchors within a block of a contiguous spectrum is configured in a wireless network, wherein each SS anchor is a primary SS anchor or a secondary SS anchor. The UE performs an initial access by detecting a first primary SS anchor and receives one or more virtual carrier configurations with corresponding SS anchors within the block of the contiguous spectrum. In another novel aspect, The UE performs an initial access through a first RF band with a first bandwidth and a first center frequency, receives a switching signal to switch from the first RF band to a second RF band with a second bandwidth and a second center frequency, wherein the second bandwidth is different from the first bandwidth, and performs a RF bandwidth adaptation from the first RF band to the second RF band based on the adaptation signal.

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