公开(公告)号：US20140286224A1

公开(公告)日：2014-09-25

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: H04W4/08 ,  H04W36/32

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：US20140146779A1

公开(公告)日：2014-05-29

申请号：US14168369

申请日：2014-01-30

Applicant: MEDIATEK, INC.

Inventor： Chia-Chun Hsu ,  Yih-Shen Chen ,  Yu-Hao Chang ,  I-Kang Fu

IPC: H04L5/00 ,  H04W24/10

CPC classification number: H04W24/10 ,  H04L5/0096 ,  H04L5/0098 ,  H04W52/365 ,  H04W72/1284 ,  H04W72/14

Abstract: Methods to manage multiple component carriers (CCs) efficiently in a mobile network with carrier aggregation (CA) enabled are proposed. For CC activation/deactivation, a single LCID value is used to represent both activation and deactivation command. A single command with multiple instructions is provided to activate and/or deactivate multiple CCs. In addition, unnecessary re-activation or re-inactivation of a CC is prevented, and explicit feedback for activation/deactivation is considered. For scheduling mechanism, a novel buffer status reporting (BSR) procedure is provided, where only one BSR is calculated after preparing all the transport blocks (TB) within one transmission time interval (TTI). Novel power headroom reporting (PHR) format and trigger are also provided. For DL-UL linking, various linking types are created based on whether there is carrier indicator field (CIF) in DL grant or UL grant. The various linking types are used in different applications to improve scheduling flexibility and load balancing.

Abstract translation: 提出了在启用载波聚合（CA）的移动网络中有效管理多分量载波（CC）的方法。 对于CC激活/去激活，单个LCID值用于表示激活和停用命令。 提供具有多个指令的单个命令以激活和/或去激活多个CC。 另外，不必要地重新激活或重新激活CC，并且考虑了激活/去激活的显式反馈。 对于调度机制，提供了一种新的缓冲状态报告（BSR）过程，其中在一个传输时间间隔（TTI）中准备所有传输块（TB）之后仅计算一个BSR。 还提供了新的功率余量报告（PHR）格式和触发。 对于DL-UL链接，基于DL授权或UL授权中是否存在载波指示符字段（CIF）来创建各种链接类型。 各种链接类型用于不同的应用程序，以提高调度灵活性和负载平衡。

公开(公告)号：US20130260745A1

公开(公告)日：2013-10-03

申请号：US13688124

申请日：2012-11-28

Applicant: MEDIATEK, INC.

Inventor： Per Johan Mikael Johansson ,  Shiang-Jiun Lin ,  Yih-Shen Chen ,  William Plumb

IPC: H04W24/02

CPC classification number: H04W24/02 ,  H04L41/0631 ,  H04L41/0686 ,  H04W24/04 ,  H04W36/00 ,  H04W36/14 ,  H04W36/36 ,  H04W76/19

Abstract: A method of inter-RAT failure event report is proposed. A UE detects a failure event in a first cell served by a first base station, and the first cell belongs to a first RAT. The failure event may include a radio link failure or a handover failure. The UE then performs an RRC establishment procedure with a second cell served by a second base station, and the second cell belongs to a second RAT. After the RRC establishment, the UE transmits a failure event report to the wireless network. The failure event can be a radio link failure, or be associated with a mobility command such as a handover command. By providing more reliable information in the failure event report than a network solution could provide, inter-RAT mobility performance can be improved.

Abstract translation: 提出了一种RAT间故障事件报告的方法。 UE检测由第一基站服务的第一小区中的故障事件，并且第一小区属于第一RAT。 故障事件可能包括无线电链路故障或切换失败。 然后，UE由第二基站服务的第二小区执行RRC建立过程，并且第二小区属于第二RAT。 在RRC建立之后，UE向无线网络发送故障事件报告。 故障事件可以是无线电链路故障，或者与诸如切换命令的移动性命令相关联。 通过在故障事件报告中提供比网络解决方案可以提供更可靠的信息，可以提高RAT间移动性能。

公开(公告)号：US20130250881A1

公开(公告)日：2013-09-26

申请号：US13848964

申请日：2013-03-22

Applicant: MEDIATEK, INC.

Inventor： Pei-Kai Liao ,  Yih-Shen Chen

IPC: H04W72/04

CPC classification number: H04W76/27 ,  H04L1/1812 ,  H04L5/001 ,  H04L5/0035 ,  H04L5/0053 ,  H04L5/0094 ,  H04W16/32 ,  H04W24/04 ,  H04W36/08 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0426 ,  H04W72/1289 ,  H04W74/0833 ,  H04W88/02 ,  H04W88/08

Abstract: Methods for physical layer multi-point carrier aggregation and feedback configuration are disclosed. In one embodiment of the invention, a UE receives an upper layer configuration includes a first UE-ID associated with a first group of component carriers (CCs) and a second UE-ID associated with a second group of CCs. The UE receives downlink control information via one or more downlink control channels on one or downlink CCs. The UE decodes the downlink control information using the first UE-ID and the second UE-ID. In another embodiment of the invention, the UE receives an upper layer configuration of a first uplink feedback CC associated with a first group of downlink CCs and a second uplink feedback CC associated with a second group of downlink CCs. The UE generates feedback information for the downlink CCs to be carried on their corresponding uplink feedback CC.

公开(公告)号：US20130183974A1

公开(公告)日：2013-07-18

申请号：US13743612

申请日：2013-01-17

Applicant: Mediatek, Inc.

Inventor： Per Johan Mikael Johansson ,  Yih-Shen Chen ,  Tze-Ping Low ,  William Plumb

IPC: H04W36/24

CPC classification number: H04W76/19 ,  H04W36/0033 ,  H04W36/0055 ,  H04W36/0061 ,  H04W36/0072 ,  H04W36/08 ,  H04W36/24 ,  H04W40/36 ,  H04W48/17 ,  H04W76/18

Abstract: An enhanced connection recovery upon lost RRC connection due to radio link failure (RLF) or handover failure (HOF) is proposed. A UE first establishes an RRC connection in a source cell in a mobile communication network. Later on, the UE detects a failure event and starts an RRC reestablishment procedure in a target cell to restore the RRC connection. In a first novel aspect, a fast RLF process is applied to reduce the outage time in the serving cell. In a second novel aspect, an enhanced cell selection mechanism based on cell prioritization information is applied to reduce the outage time in the target cell. In one embodiment, multi-RAT registration is used to steer cell selection.

公开(公告)号：US20130100840A1

公开(公告)日：2013-04-25

申请号：US13659086

申请日：2012-10-24

Applicant: MEDIATEK, INC.

Inventor： Per Johan Mikael Johansson ,  Yih-Shen Chen ,  Chia-Chun Hsu

IPC: H04W24/00

CPC classification number: H04W24/08 ,  H04L43/045 ,  H04L43/0852 ,  H04L43/0888

Abstract: A method and apparatus for transmitter assisted Quality of Service (QoS) measurement. Time information is generated by the transmitter and transmitted along with a data transmission. A receiving device determines a QoS measurement based upon the time information and the received data. The time information indicates when the data was made available for transmission, which data transmission blocks belong to a single data transmission, and when a transmitter buffer was emptied. The QOS measurements are performance measurement such as, latency measurements and throughput measurements. The time information indicates a time reference relative to the timing of a wireless interface. The time reference is a System Frame Number (SFN), a Connection Frame Number (CFN), a relative count of frame numbers, a count of sub-frames, or a count of Time Transmission Intervals (TTIs). An aggregated QOS measurement is generated based upon the QOS measurement.

Abstract translation: 用于发射机辅助服务质量（QoS）测量的方法和装置。 时间信息由发射机产生并与数据传输一起发送。 接收装置根据时间信息和接收到的数据确定QoS测量。 时间信息指示数据何时可用于传输，哪些数据传输块属于单个数据传输，以及何时发送缓冲器被清空。 QOS测量是性能测量，如延迟测量和吞吐量测量。 时间信息表示相对于无线接口的定时的时间参考。 时间参考是系统帧号（SFN），连接帧号（CFN），帧号的相对计数，子帧的计数或时间传输间隔（TTI）的计数。 基于QOS测量生成聚合QOS测量。

公开(公告)号：US20130084809A1

公开(公告)日：2013-04-04

申请号：US13633432

申请日：2012-10-02

Applicant: Mediatek, Inc.

Inventor： Per Johan Mikael Johansson ,  Yih-Shen Chen

IPC: H04W24/08

CPC classification number: H04W24/08 ,  H04W24/10 ,  H04W36/0005 ,  H04W64/00 ,  H04W72/0406 ,  H04W76/19 ,  H04W88/02 ,  H04W88/08

Abstract: A method of throughput and data volume measurement for minimization of drive test (MDT) is proposed. A base station establishes a radio resource control (RRC) connection with a user equipment (UE) in a mobile communication network. The base station or UE measures transmitted or received data volume during a transmission time of a data burst between the base station and the UE. When the data burst spans multiple measurement periods and the data burst is split at each measurement period boundary. For each measurement period, data volume during the measurement period is measured to generate a measurement result. When throughput measurement is performed by the network, the base station receives location information that is available during the transmission time of the data burst. The data volume measurement is logged with time stamp such that each measurement result can correlated with the location information.

Abstract translation: 提出了一种用于最小化驱动测试（MDT）的吞吐量和数据量测量方法。 基站在移动通信网络中与用户设备（UE）建立无线资源控制（RRC）连接。 基站或UE在基站和UE之间的数据突发的传输时间期间测量发送或接收的数据量。 当数据脉冲串跨越多个测量周期，并且数据脉冲串在每个测量周期边界处被分离。 对于每个测量周期，测量测量期间的数据量以产生测量结果。 当由网络执行吞吐量测量时，基站接收在数据突发的发送时间期间可用的位置信息。 使用时间戳记录数据量测量，使得每个测量结果可以与位置信息相关联。