公开(公告)号：US20170367082A1

公开(公告)日：2017-12-21

申请号：US15690657

申请日：2017-08-30

Applicant: Mediatek Inc.

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

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

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：US20170347276A1

公开(公告)日：2017-11-30

申请号：US15607369

申请日：2017-05-26

Applicant: MEDIATEK INC.

Inventor： Chia-Hao Yu ,  Jiann-Ching Guey

IPC: H04W16/28 ,  H04W24/02 ,  H04L5/00 ,  H04W72/08 ,  H01Q3/26

CPC classification number: H04W16/28 ,  H01Q3/2635 ,  H04B7/0617 ,  H04L5/0053 ,  H04L5/0092

Abstract: Mechanisms for wireless directional transmission systems are proposed. In a first novel aspect, a mechanism for reference signal provisioning and channel information reporting is proposed. Two sets of measurement pilots are introduced for initial access and control signaling. In a second novel aspect, a beamwidth adaptation mechanism is proposed to deal with occasional channel variation without requiring constantly high overhead due to measurement pilot transmission. In a third novel aspect, a mechanism for backhaul link to activate/deactivate efficiently is proposed. New states of activated state and deactivated state are introduced.

公开(公告)号：US20170141894A1

公开(公告)日：2017-05-18

申请号：US15157423

申请日：2016-05-18

Applicant: National Taiwan University ,  MediaTek Inc.

Inventor： Hung-Yu Wei ,  Chung-Wei Weng ,  Chia-Hao Yu

IPC: H04L5/00 ,  H04B17/309 ,  H04W4/02 ,  H04W16/28 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04B17/309 ,  H04W4/02 ,  H04W16/28 ,  H04W52/242 ,  H04W72/0446

Abstract: The disclosure is directed to a method of transmitting a reference signal and related electronic devices using the same. In one of the exemplary embodiments, the method would include not limited to transmitting a reference signal by using a directional antenna emitting a first radiation pattern of one or more beams covering 360 N degrees per one of N time slots during a first phase of a full sweeping period, wherein N≧2 and transmitting the reference signal, in response to transmitting the reference signal by using the directional antenna which has the first radiation pattern, by using the directional antenna emitting a second radiation pattern of multiple beams having different angles simultaneously covering a total of 360 M degrees of angles per one of M time slots during a second phase of the full sweeping period, wherein N>M≧1.

公开(公告)号：US09578644B2

公开(公告)日：2017-02-21

申请号：US14863492

申请日：2015-09-24

Applicant: MEDIATEK INC.

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

IPC: H04M1/00 ,  H04W72/04 ,  H04L5/00 ,  H04W72/08 ,  H04B7/06 ,  H04W88/02 ,  H04W88/08 ,  H04W16/28

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.

Abstract translation: 提出了一种具有波束成形的无线通信系统的波束失准检测方法。 为了识别未对准的光束，通过将专用光束质量与参考光束质量进行比较来应用相对光束质量劣化。 参考光束有利于与专用光束相似的传输路径，并且具有更好的移动性鲁棒性。 在一个实施例中，参考光束是专用光束的相关控制光束。 为了检测光束未对准，将第一专用光束SINR与第二相关联的控制光束SINR进行比较。

公开(公告)号：US20160373902A1

公开(公告)日：2016-12-22

申请号：US15249552

申请日：2016-08-29

Applicant: MEDIATEK INC.

Inventor： Chia-Hao Yu ,  Chia-Chun Hsu ,  Yih-Shen Chen ,  Chien-Chun Huang-Fu ,  Yu-Syuan Jheng

IPC: H04W4/08 ,  H04W4/06 ,  H04W4/10 ,  H04W72/12 ,  H04W36/30 ,  H04W74/00 ,  H04W36/08 ,  H04W36/00

CPC classification number: H04W4/08 ,  H04L5/0037 ,  H04L12/185 ,  H04L12/1886 ,  H04W4/06 ,  H04W4/10 ,  H04W24/08 ,  H04W36/0083 ,  H04W36/08 ,  H04W36/30 ,  H04W36/32 ,  H04W72/00 ,  H04W72/005 ,  H04W72/121 ,  H04W74/006 ,  H04W76/40

Abstract: A method of supporting group communication over LTE MBMS is provided. A UE first establishes a unicast Evolved Packet Service (EPS) bearer in an LTE network for group communication. The UE belongs to a communication group having a communication group ID. The UE receives access information from the network for monitoring downlink (DL) multicast traffic of the DL group communication based on a multicast decision. The UE is then ready for monitoring a multicast Multimedia Broadcast Multicast Service (MBMS) bearer for receiving the DL multicast traffic. In one embodiment, The UE requests to switch the DL multicast traffic from the multicast MBMS bearer to the unicast EPS bearer upon detecting that the UE is approaching an MBMS coverage boundary. In another embodiment, the UE transmits an indication of preferred target cells to the network before performing a handover and thereby maintaining multicast service continuity of the group communication.

Abstract translation: 提供了一种通过LTE MBMS支持群组通信的方法。 UE首先在用于组通信的LTE网络中建立单播演进分组业务（EPS）承载。 UE属于具有通信组ID的通信组。 UE从网络接收基于多播决定的DL组通信的下行链路（DL）组播流量的接入信息。 然后，UE准备监视用于接收DL多播业务的组播多媒体广播多播服务（MBMS）承载。 在一个实施例中，当UE正在接近MBMS覆盖边界时，UE请求将DL组播业务从组播MBMS承载切换到单播EPS承载。 在另一个实施例中，UE在执行切换之前向网络发送优选目标小区的指示，从而保持组通信的多播服务连续性。

公开(公告)号：US09504085B2

公开(公告)日：2016-11-22

申请号：US14196310

申请日：2014-03-04

Applicant: MediaTek Inc.

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

IPC: H04M1/00 ,  H04W76/04 ,  H04W88/06

CPC classification number: H04W76/28 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0871 ,  H04W88/06

Abstract: A communications apparatus. A first radio module communicates with a first wireless network and provides wireless communications services. A second radio module communicates with a second wireless network and provides wireless communications services. At least two antennas shared by the first radio module and the second radio module. When the first radio module operates in a connected mode and when the timing of the first radio module performing the first receiving activity coincides with the timing of the second radio module performing a second receiving activity, the first radio module reports a value of 1 for a Rank Indicator to the first wireless network at least once before the second radio module is to perform the second receiving activity, and then the second radio module uses one of the antennas to perform the second receiving activity.

Abstract translation: 通信装置。 第一无线电模块与第一无线网络通信并提供无线通信服务。 第二无线电模块与第二无线网络通信并提供无线通信服务。 由第一无线电模块和第二无线电模块共享的至少两个天线。 当第一无线电模块以连接模式工作时，当执行第一接收活动的第一无线电模块的定时与执行第二接收活动的第二无线电模块的定时一致时，第一无线电模块向a报告值1 在第二无线电模块执行第二接收活动之前，至少一次第一无线网络的秩指示符，然后第二无线电模块使用其中一个天线来执行第二接收活动。

公开(公告)号：US09445243B2

公开(公告)日：2016-09-13

申请号：US14221689

申请日：2014-03-21

Applicant: MEDIATEK INC.

Inventor： Chia-Hao Yu ,  Chia-Chun Hsu ,  Yih-Shen Chen ,  Chien-Chun Huang-Fu ,  Yu-Syuan Jheng

IPC: H04B7/00 ,  H04W4/08 ,  H04W4/10 ,  H04W36/32 ,  H04W72/00 ,  H04W36/08 ,  H04W76/00 ,  H04W4/06 ,  H04W74/00

CPC classification number: H04W4/08 ,  H04L5/0037 ,  H04L12/185 ,  H04L12/1886 ,  H04W4/06 ,  H04W4/10 ,  H04W24/08 ,  H04W36/0083 ,  H04W36/08 ,  H04W36/30 ,  H04W36/32 ,  H04W72/00 ,  H04W72/005 ,  H04W72/121 ,  H04W74/006 ,  H04W76/40

Abstract: A method of supporting group communication over LTE MBMS is provided. A UE first establishes a unicast Evolved Packet Service (EPS) bearer in an LTE network for group communication. The UE belongs to a communication group having a communication group ID. The UE receives access information from the network for monitoring downlink (DL) multicast traffic of the DL group communication based on a multicast decision. The UE is then ready for monitoring a multicast Multimedia Broadcast Multicast Service (MBMS) bearer for receiving the DL multicast traffic. In one embodiment, The UE requests to switch the DL multicast traffic from the multicast MBMS bearer to the unicast EPS bearer upon detecting that the UE is approaching an MBMS coverage boundary. In another embodiment, the UE transmits an indication of preferred target cells to the network before performing a handover and thereby maintaining multicast service continuity of the group communication.

Abstract translation: 提供了一种通过LTE MBMS支持群组通信的方法。 UE首先在用于组通信的LTE网络中建立单播演进分组业务（EPS）承载。 UE属于具有通信组ID的通信组。 UE从网络接收基于多播决定的DL组通信的下行链路（DL）组播流量的接入信息。 然后，UE准备监视用于接收DL多播业务的组播多媒体广播多播服务（MBMS）承载。 在一个实施例中，当UE正在接近MBMS覆盖边界时，UE请求将DL组播业务从组播MBMS承载切换到单播EPS承载。 在另一个实施例中，UE在执行切换之前向网络发送优选目标小区的指示，从而保持组通信的多播服务连续性。

公开(公告)号：US20160095003A1

公开(公告)日：2016-03-31

申请号：US14859668

申请日：2015-09-21

Applicant: MEDIATEK INC.

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

IPC: H04W16/28 ,  H04W72/12 ,  H04W52/02 ,  H04W72/04

CPC classification number: H04W16/28 ,  H04B7/0408 ,  H04B7/0695 ,  H04L5/0094 ,  H04W28/08 ,  H04W52/0209 ,  H04W72/0446 ,  H04W72/046 ,  H04W72/12 ,  Y02D70/1262 ,  Y02D70/24 ,  Y02D70/444

Abstract: An incremental scheduling scheme is proposed in a wireless communication system with beamforming. In an initial stage (stage-1), coarse scheduling plan is granted via control beam transmission. In a second stage (stage-2), fine scheduling plan is granted via dedicated beam transmission. Such incremental scheduling scheme provides load balancing for overhead channels on control/dedicated beams via stage-2 scheduling. It utilizes dedicated beam transmission that is more resource efficient and more UE-specific. Furthermore, it provides UE natural power-saving opportunities via stage-1 scheduling.

Abstract translation: 在具有波束成形的无线通信系统中提出了增量调度方案。 在初始阶段（第一阶段），通过控制波束传输授予粗调度计划。 在第二阶段（第二阶段），通过专用波束传输授予精细调度计划。 这种增量调度方案通过阶段2调度为控制/专用波束上的开销信道提供负载平衡。 它利用更多的资源有效率和更多的UE特定的专用波束传输。 此外，它通过第一阶段调度提供UE自然节能的机会。

公开(公告)号：US20160087705A1

公开(公告)日：2016-03-24

申请号：US14723706

申请日：2015-05-28

Applicant: MEDIATEK INC.

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

IPC: H04B7/06 ,  H04W74/00 ,  H04W74/08 ,  H04W72/04

CPC classification number: H04B7/0617 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053 ,  H04W72/046 ,  H04W74/0833

Abstract: A method of control signaling in a beamforming system is proposed. A user equipment (UE) receives control beam transmission from a base station using a set of control beams in a beamforming network. Each control beam comprises a set of DL control resource blocks, a set of UL control resource blocks, and an associated set of beamforming weights. The UE selects a control beam for establishing a connection with the base station. The UE then performs random access with the base station using the selected control beam.

Abstract translation: 提出了一种波束成形系统中控制信令的方法。 用户设备（UE）使用波束形成网络中的一组控制波束从基站接收控制波束传输。 每个控制波束包括一组DL控制资源块，一组UL控制资源块和一组相关的波束成形权重。 UE选择用于建立与基站的连接的控制波束。 然后，UE使用所选择的控制波束来执行与基站的随机接入。

公开(公告)号：US20140321304A1

公开(公告)日：2014-10-30

申请号：US14261747

申请日：2014-04-25

Applicant: MEDIATEK INC.

Inventor： Chia-Hao Yu ,  Ju-Ya Chen ,  Yih-Shen Chen ,  Yen-Po Lee ,  Yi-Chun Wei ,  Tsang-Yi Shen

IPC: H04W52/36 ,  H04W72/02 ,  H04W52/24

CPC classification number: H04W52/365 ,  H04B17/336 ,  H04L5/00 ,  H04L5/001 ,  H04W52/146 ,  H04W52/241 ,  H04W52/34 ,  H04W52/367 ,  H04W72/02

Abstract: A method of maximum output power configuration with UE preference in carrier aggregation is provided. A UE configures multiple component carriers (CCs) with carrier aggregation for communicating with a serving base station in a mobile communication network. The UE determines channel condition of multiple serving cells over the corresponding multiple CCs. The UE then determines maximum output power for each CC based at least in part on the corresponding channel condition of each CC. Finally, the UE transmits power headroom report (PHR) for each CC to the serving base station, wherein the PHR is calculated based on the determined maximum output power. As a result, the reported PH information is channel condition dependent, which can be used by eNB for facilitating better transmission scheduling.

Abstract translation: 提供了一种在载波聚合中具有UE偏好的最大输出功率配置的方法。 UE配置具有载波聚合的多个分量载波（CC），用于与移动通信网络中的服务基站进行通信。 UE在相应的多个CC上确定多个服务小区的信道状况。 UE然后至少部分地基于每个CC的相应信道状况来确定每个CC的最大输出功率。 最后，UE向服务基站发送每个CC的功率余量报告（PHR），其中基于确定的最大输出功率来计算PHR。 结果，报告的PH信息是信道条件相关的，可以由eNB使用以便于更好的传输调度。