公开(公告)号：US20170290005A1

公开(公告)日：2017-10-05

申请号：US15473844

申请日：2017-03-30

Applicant: MEDIATEK INC.

Inventor： Guan-Yu Lin ,  Per Johan Mikael Johansson ,  Pavan Santhana Krishna Nuggehalli ,  Chia-Chun Hsu

IPC: H04W72/04 ,  H04W24/10 ,  H04W24/08 ,  H04L29/06

Abstract: A method of adaptive transmission time interval (TTI) tuning based on TCP information is proposed. First, a procedure for TCP information delivery between eNB and TCP sender/TCP receiver is disclosed. The TCP information comprises TCP status, TCP congestion window (CWND) size, TCP round trip delay, TCP SS threshold, TCP index, and TCP event indication. Second, various methods for eNB to configure TTI with UE TCP information and/or buffer information are disclosed. A first method is saturation detection which includes buffer status based saturation detection and CWND based saturation detection. A second method is Greedy Buffer Clearing. A third method is TCP state based TTI selection method.

公开(公告)号：US20170257796A1

公开(公告)日：2017-09-07

申请号：US15493390

申请日：2017-04-21

Applicant: MEDIATEK INC.

Inventor： Chia-Chun Hsu

IPC: H04W28/06 ,  H04W28/02

CPC classification number: H04W28/06 ,  H04L69/04 ,  H04W28/0289 ,  H04W76/10 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/21 ,  Y02D70/22 ,  Y02D70/23

Abstract: A method of selective uplink-only robust header compression (ROHC) mechanism is proposed. The ROHC channel comprises two unidirectional channels, i.e., there is one channel for the downlink and one for the uplink. To solve the uplink resource shortage, ROHC is activated and applied on selective packets of selective uplink flow. Once ROHC configuration is provided by a serving base station, a user equipment (UE) can select certain UL packets to apply ROHC based on a list of conditions. By activating ROHC for UL only and performing ROHC selectively, the compression efficiency can be improved with less UE power consumption and computation complexity.

公开(公告)号：US09629083B2

公开(公告)日：2017-04-18

申请号：US14833231

申请日：2015-08-24

Applicant: MEDIATEK INC.

Inventor： Per Johan Mikael Johansson ,  Chia-Chun Hsu

IPC: H04W52/02 ,  H04W80/04 ,  H04W88/06 ,  H04W88/08

CPC classification number: H04W52/0225 ,  H04W52/0216 ,  H04W52/0251 ,  Y02D70/00 ,  Y02D70/124 ,  Y02D70/1262 ,  Y02D70/24

Abstract: A method of user equipment (UE) indication of traffic-related information to network is provided. The method comprises a UE determining a traffic indicator and transmitting the traffic indicator to a base station. In one embodiment, the traffic indicator indicates either that default power consumption is preferred or low power consumption is preferred. For example, when the UE is in background traffic or sparse traffic, low power consumption is preferred. In another embodiment, the traffic indicator indicates a time pattern of the traffic history. From the network perspective, upon receiving and evaluating information contained in the traffic indicator, the network triggers a QoS modification procedure by applying one or more QoS modification algorithms.

公开(公告)号：US20170026861A1

公开(公告)日：2017-01-26

申请号：US15214295

申请日：2016-07-19

Applicant: MEDIATEK INC.

Inventor： Li-Chuan Tseng ,  Chia-Chun Hsu ,  Per Johan Mikael Johansson

IPC: H04W24/08 ,  H04B17/318 ,  H04W76/04

CPC classification number: H04W24/08 ,  H04B17/318 ,  H04W36/0088 ,  H04W76/28

Abstract: A method of mobility management with smart measurement is proposed. The present invention addresses modifications on RRM measurements as well as mobility control procedures in order to improve mobility performance for UE configured with longer connected mode DRX cycle. Since the poor mobility performance when applying extended DRX cycle mainly results from reduced number of measurements, one solution is to dynamically adjust the measurement interval so as to trigger the measurement reporting in time.

Abstract translation: 提出了一种采用智能测量的移动性管理方法。 本发明解决了对RRM测量以及移动性控制过程的修改，以便改进配置有较长连接模式DRX周期的UE的移动性能。 由于在应用扩展DRX周期时移动性差的主要原因是测量次数减少，所以一个解决方案是动态调整测量间隔，以便及时触发测量报告。

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：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：US09398532B2

公开(公告)日：2016-07-19

申请号：US14273886

申请日：2014-05-09

Applicant: MEDIATEK INC.

Inventor： Chia-Chun Hsu ,  Per Johan Mikael Johansson

IPC: H04W52/02 ,  H04W68/02 ,  H04W36/00 ,  H04W48/20 ,  H04W76/04

CPC classification number: H04W52/0225 ,  H04W36/0072 ,  H04W48/20 ,  H04W52/0216 ,  H04W68/02 ,  H04W76/28 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/164 ,  Y02D70/21 ,  Y02D70/24

Abstract: An enhanced paging mechanism is provided for UEs waking up from a very long paging cycle to improve paging robustness and flexibility. Enhanced paging includes absolute time paging (ATP) and paging with extended wakeup time. For absolute time paging, a UE receives ATP configuration and uses the actual wall time to calculate paging occasion if a condition is satisfied. In one embodiment, the wall time is acquired from at least one of an internal UE clock, a GPS time, information broadcasted from the network, or information from a higher layer signaling. For paging with extended wakeup time, a UE applies a long paging cycle followed by multiple normal paging cycles after waking up from the long paging cycle. In one embodiment, the long paging cycle is infinite and the UE enters normal paging cycle only upon TAU-triggered paging or uplink traffic.

Abstract translation: 提供了一种增强的寻呼机制，用于从非常长的寻呼周期唤醒的UE，以提高寻呼的鲁棒性和灵活性。 增强的寻呼包括绝对时间寻呼（ATP）和具有延长唤醒时间的寻呼。 对于绝对时间寻呼，UE接收ATP配置，并且如果满足条件，则使用实际的停留时间来计算寻呼时机。 在一个实施例中，从内部UE时钟，GPS时间，从网络广播的信息或来自较高层信令的信息中的至少一个获取壁时间。 对于具有延长的唤醒时间的寻呼，UE在从长寻呼周期唤醒之后应用长寻呼周期，随后是多个正常寻呼周期。 在一个实施例中，长寻呼周期是无限的，并且UE仅在TAU触发的寻呼或上行链路业务时才进入正常寻呼周期。

公开(公告)号：US09301186B2

公开(公告)日：2016-03-29

申请号：US14251910

申请日：2014-04-14

Applicant: MEDIATEK INC.

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

IPC: G01R31/08 ,  H04W24/10 ,  H04W24/08

CPC classification number: H04W24/10 ,  H04W24/08 ,  H04W52/14

Abstract: Methods of MDT information logging and reporting are provided. In one embodiment, a method is provided to resolve shortcomings of prior art by correlating UL measurements with QoS information to enable UL performance analysis and accurate detection of coverage problems. In another embodiment, a method is provided to resolve the shortcomings of the prior art by making DL measurements and location information collecting or logging conditional on UL measurements.

Abstract translation: 提供MDT信息记录和报告的方法。 在一个实施例中，提供了一种通过将UL测量与QoS信息相关联来解决现有技术的缺点的方法，以实现UL性能分析和对覆盖问题的准确检测。 在另一个实施例中，提供了一种通过在DL测量中进行DL测量和位置信息收集或记录来解决现有技术的缺点的方法。

公开(公告)号：US09282562B2

公开(公告)日：2016-03-08

申请号：US14621742

申请日：2015-02-13

Applicant: MEDIATEK INC.

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

IPC: H04L12/26 ,  H04W72/04 ,  H04W24/02 ,  H04W24/08 ,  H04W36/26 ,  H04W24/10

CPC classification number: H04W72/0486 ,  H04W24/02 ,  H04W24/08 ,  H04W24/10 ,  H04W36/26

Abstract: A method of collecting and providing traffic statistics in a cellular network in accordance is proposed. A UE establishes an RRC connection with a base station. The UE starts to collect traffic statistics that comprises a CDF curve or a PDF diagram for packet inter-arrival time. The UE may receive a measurement configuration from the base station for the traffic statistics collection. The UE then reports a representation of the traffic statistics to the base station for RRC reconfiguration. The UE may also receive a reporting request from the base station that specifies a representation format. The representation format includes one or more probability values at corresponding inter-arrival time points, at least one slope of the CDF, one or more steep events in the CDF, or a PDF range.

公开(公告)号：US20150257088A1

公开(公告)日：2015-09-10

申请号：US14639414

申请日：2015-03-05

Applicant: MEDIATEK INC.

Inventor： Chia-Chun Hsu ,  Chie-Ming Chou

IPC: H04W48/16

CPC classification number: H04W72/0486 ,  H04L29/06176 ,  H04L65/80 ,  H04W4/70 ,  H04W48/02 ,  H04W80/04

Abstract: A UE initiates an MMTEL service in RRC Idle mode in a mobile communication network. The UE acquires access control information from a base station. The access control information comprises SSAC configuration information, ACB parameters information, and ACB bypass information. The ACB bypass information indicates whether ACB is applicable to MMTEL service type. The UE then performs SSAC check for the MMTEL service based on the access control information. The UE also performs ACB check for the MMTEL service if ACB is applicable to the MMTEL service. Otherwise, the UE bypasses the ACB check for the MMTEL service. The selective ACB mechanism can prioritize or deprioritize services based on operator's requirement.

Abstract translation: UE在移动通信网络中以RRC空闲模式发起MMTEL服务。 UE从基站获取接入控制信息。 访问控制信息包括SSAC配置信息，ACB参数信息和ACB旁路信息。 ACB旁路信息表示ACB是否适用于MMTEL业务类型。 然后，UE基于访问控制信息对MMTEL服务执行SSAC检查。 如果ACB适用于MMTEL服务，UE还对MMTEL服务执行ACB检查。 否则，UE绕过用于MMTEL业务的ACB检查。 选择性ACB机制可以根据运营商的要求对服务进行优先级排序或优先排序。