公开(公告)号：US20180368152A1

公开(公告)日：2018-12-20

申请号：US16006925

申请日：2018-06-13

Applicant: MEDIATEK INC.

Inventor： Hsuan-Li Lin ,  Ming-Po Chang ,  Chia-Hao Yu ,  Jiann-Ching Guey

IPC: H04W72/08 ,  H04J3/16 ,  H04L5/00

Abstract: A method of configuring and applying UE beam training gaps for simultaneous UE beam training and data reception in a beamforming wireless communication system is proposed. UE beam training gaps are configured by the base station for each UE. Typically, UE-specific data transmission can take place during the serving control beam time region. The UE beam training gaps are periods where UE-specific data transmission does not happen within the serving control beam time region. During each UE beam training gap, non-serving UE beam training can take place, where the UE performs intra-frequency reference signal measurements from serving and/or neighbor cells using various non-serving UE beams. The UE beam training gaps are configured and signaled to each UE, and each individual UE can have different data occupancy region within its serving CB time region.

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.

公开(公告)号：US20180227786A1

公开(公告)日：2018-08-09

申请号：US15888315

申请日：2018-02-05

Applicant: MEDIATEK INC.

Inventor： Chia-Hao Yu ,  Ming-Po Chang ,  Jiann-Ching Guey

IPC: H04W24/10 ,  H04W72/04 ,  H04B7/06

Abstract: A method of beam reciprocity state reporting and uplink beam management in wireless communication systems with beamforming is proposed. In one novel aspect, a BS configures one or more resource sets to a UE for uplink beam management. The one or more resource sets are allocated for UE to transmit UL reference signals using a number of UE beams. The number of UE beams to be trained is reported by the UE, e.g., via a “UE beam reciprocity state (update)” message. The BS also indicates whether a fixed UE TX beam or which UE TX beam is used for transmission, or indicates whether different UE TX beams are used for transmission of different resources in a resource set. The BS then feedback measurement results for UE to choose a proper TX beam.

公开(公告)号：US09980315B2

公开(公告)日：2018-05-22

申请号：US15145614

申请日：2016-05-03

Applicant: MediaTek Inc.

Inventor： Chia-Hao Yu ,  Ju-Ya Chen ,  Kuan-Lin Chen

IPC: H04W24/08 ,  H04W76/04 ,  H04L5/00 ,  H04W76/06

CPC classification number: H04W76/28 ,  H04L5/00 ,  H04L5/001 ,  H04W76/36

Abstract: A method deactivates secondary Component Carrier (CC) measurement in a communications apparatus providing wireless communications services via a first CC in a wireless network, wherein the communications apparatus includes a first signal processing component chain comprising a plurality of signal processing components and is configured for processing the RF signals for the first CC and a second signal processing component chain comprising a plurality of signal processing components. The method includes operations of determining a switch timing for turning on at least one of the signal processing components in the second signal processing component chain for performing a deactivated secondary CC measurement; performing the deactivated secondary CC measurement via the second signal processing component chain, wherein the secondary CC is not able to perform data transmission or reception during a deactivated state, and wherein the switch timing is determined according to a Discontinuous Reception (DRX) cycle.

公开(公告)号：US09775156B2

公开(公告)日：2017-09-26

申请号：US15405075

申请日：2017-01-12

Applicant: MEDIATEK INC.

Inventor： Chia-Hao Yu ,  Ming-Po Chang ,  Aimin Justin Sang

IPC: H04M1/00 ,  H04W72/04 ,  H04W16/28 ,  H04W48/20

CPC classification number: H04W72/046 ,  H04B7/0408 ,  H04B7/0617 ,  H04B7/0632 ,  H04L5/0057 ,  H04W16/28 ,  H04W48/20 ,  H04W72/085 ,  H04W88/02 ,  H04W88/08

Abstract: A method of beam misalignment detection for wireless communication system with beamforming is proposed. To identify a misaligned beam, a relative beam quality degradation is applied by comparing a dedicated beam quality with a reference beam quality. The reference beam favors similar transmission path as the dedicated beam, and has better mobility robustness. In one embodiment, the reference beam is an associated control beam of the dedicated beam. To detect beam misalignment, a first dedicated beam SINR is compared with a second associated control beam SINR.

公开(公告)号：US09680547B2

公开(公告)日：2017-06-13

申请号：US14706098

申请日：2015-05-07

Applicant: MediaTek Inc.

Inventor： Chia-Hao Yu ,  Ming-Po Chang ,  Jiann-Ching Guey

IPC: H04B7/06 ,  H04W72/00 ,  H04W4/06 ,  H01Q3/26 ,  H01Q1/24 ,  H04B7/0452 ,  H04B7/0456

CPC classification number: H04B7/0617 ,  H01Q1/246 ,  H01Q3/26 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0695 ,  H04B7/0697 ,  H04W4/06 ,  H04W72/005

Abstract: A network control device. A wireless communications module receives a plurality of first signals each including information regarding a preferred transmitting beam in a first beam level determined by a communications apparatus. A controller selects a group of communications apparatuses to join a 1-to-many beam training according to the received first signals and selects one or more transmitting beams in a second beam level to be trained. The communications apparatuses in the group have the same preferred transmitting beam in the first beam level and the transmitting beam(s) in the second beam level associates with the preferred transmitting beam in the first beam level. The wireless communications module further uses the transmitting beam(s) in turn to transmit signals to perform the 1-to-many beam training for training the transmitting beam(s) in the second beam level among the group of communications apparatuses at the same time.

公开(公告)号：US09642153B2

公开(公告)日：2017-05-02

申请号：US14049341

申请日：2013-10-09

Applicant: MediaTek Inc.

Inventor： Ju-Ya Chen ,  Yu-Chuan Lin ,  Da-shan Shiu ,  Yih-Shen Chen ,  Chia-Hao Yu

IPC: H04W72/12 ,  H04W72/10 ,  H04W88/06 ,  H04W52/02

CPC classification number: H04W72/1215 ,  H04W52/0216 ,  H04W52/0229 ,  H04W52/0241 ,  H04W52/42 ,  H04W52/44 ,  H04W72/10 ,  H04W88/06 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/24

Abstract: In a communications apparatus first radio module communicates with a first wireless network and provides wireless communication services in compliance with a first RAT. A second radio module communicates with a second wireless network and provides wireless communication services in compliance with a second RAT. At least two antennas are shared by the first radio module and the second radio module. When the first radio module operates in an idle mode and when the timing of the first radio module performing a first receiving activity coincides with the timing of the second radio module performing a second receiving activity, the second radio module uses the antennas to perform the second receiving activity when a DRX cycle duration of the first radio module in the idle mode is shorter than a DRX cycle duration of the second radio module.

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

IPC: H04B7/04 ,  H04L1/00 ,  H04J13/00 ,  H04J4/00 ,  H04W72/04 ,  H04B7/06

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。

公开(公告)号：US09565140B2

公开(公告)日：2017-02-07

申请号：US14052619

申请日：2013-10-11

Applicant: MEDIATEK, INC.

Inventor： Chia-Hao Yu ,  Ju-Ya Chen ,  Yih-Shen Chen

IPC: H04W4/00 ,  H04L12/861 ,  H04L5/00 ,  H04L1/18

CPC classification number: H04L49/9005 ,  H04L1/1822 ,  H04L1/1874 ,  H04L5/001 ,  H04L5/0055

Abstract: A user equipment (UE) receives and decodes a first erroneous transport block (TB) from a base station in a mobile communication network. The UE allocates a first soft buffer having a first buffer size. The first soft buffer is associated with a first HARQ process for storing the first TB. The UE then receives and decodes a second erroneous TB from the base station. The UE allocates a second soft buffer having a second buffer size. The second soft buffer is associated with a second HARQ process for storing the second TB. The UE releases a portion of the first soft buffer to be allocated as part of the second soft buffer. The dynamic buffer allocation method reduces mismatch between rate matching and soft buffer storing when the total number of HARQ processes is small. In addition, more HARQ processes can be supported when the corresponding TB size is small.

Abstract translation: 用户设备（UE）从移动通信网络中的基站接收并解码第一错误传输块（TB）。 UE分配具有第一缓冲器大小的第一软缓冲器。 第一软缓冲器与用于存储第一TB的第一HARQ过程相关联。 然后，UE从基站接收并解码第二个错误TB。 UE分配具有第二缓冲器大小的第二软缓冲器。 第二软缓冲器与用于存储第二TB的第二HARQ进程相关联。 UE释放要作为第二软缓冲器的一部分分配的第一软缓冲器的一部分。 当HARQ进程的总数小时，动态缓冲器分配方法减少了速率匹配和软缓冲存储之间的不匹配。 另外，当对应的TB大小小时，可以支持更多的HARQ进程。

公开(公告)号：US09432950B2

公开(公告)日：2016-08-30

申请号：US14199032

申请日：2014-03-06

Applicant: MediaTek Inc.

Inventor： Ju-Ya Chen ,  Chia-Hao Yu ,  Yu-Chuan Lin ,  Yi-Chun Wei ,  Yi-Jung Chiang

IPC: H04L27/00 ,  H04W52/24 ,  H04W52/14 ,  H04W52/32 ,  H04W52/34 ,  H04W52/58

CPC classification number: H04W52/241 ,  H04W52/146 ,  H04W52/247 ,  H04W52/325 ,  H04W52/34 ,  H04W52/58

Abstract: A communications apparatus. The RF signal processing device is capable of supporting carrier aggregation and configured to process RF signals. The baseband signal processing device is configured to process baseband signals. The processor is configured to control operations of the RF signal processing device and the baseband signal processing device. The processor further receives a power control signal from a peer communications apparatus, obtains an assigned transmission power which is assigned by the peer communications apparatus for the communications apparatus to transmit a reference signal according to information carried in the power control signal, determines a spectral efficiency estimation value of the communications apparatus and directs the RF signal processing device to transmit the reference signal with a reduced transmission power which is smaller than the assigned transmission power when the spectral efficiency estimation value is smaller than a predetermined threshold.

Abstract translation: 通信装置。 RF信号处理设备能够支持载波聚合并被配置为处理RF信号。 基带信号处理装置被配置为处理基带信号。 处理器被配置为控制RF信号处理设备和基带信号处理设备的操作。 处理器还从对等通信装置接收功率控制信号，获得由对等通信装置为通信装置分配的分配的发送功率，以根据在功率控制信号中携带的信息发送参考信号，确定频谱效率 估计值，并且当频谱效率估计值小于预定阈值时，引导RF信号处理装置以具有小于所分配的发送功率的降低的发送功率发送参考信号。