公开(公告)号：US20180338260A1

公开(公告)日：2018-11-22

申请号：US16047311

申请日：2018-07-27

Applicant: MEDIATEK INC.

Inventor： Chia-Chun Hsu ,  Chie-Ming Chou

IPC: H04W28/02 ,  H04L12/851 ,  H04L12/823 ,  H04W52/02 ,  H04W72/04 ,  H04W72/12 ,  H04W76/28

Abstract: A method of uplink shaping and extending UE in RRC Idle Mode is proposed. The UE processes a data packet to be sent to the network. The data packet is associated with a traffic type. If the data packet belongs to a normal traffic type, then the UE enters RRC Connected mode and thereby transmitting the data packet to the network. If the data packet belongs to a background traffic type, then the UE buffers the data packet and the UE is prohibited from entering RRC Connected mode until a triggering condition is satisfied for uplink transmission. The proposed mechanism achieves power saving by reducing the activity of uplink transmission. In addition, the proposed mechanism also reduces signaling overhead to enhance network efficiency.

公开(公告)号：US09918252B2

公开(公告)日：2018-03-13

申请号：US15152771

申请日：2016-05-12

Applicant: MEDIATEK INC.

Inventor： Ming-Yuan Cheng ,  Yih-Shen Chen ,  Chie-Ming Chou ,  Pavan Santhana Krishna Nuggehalli ,  Chia-Chun Hsu

IPC: H04W36/28 ,  H04W28/22 ,  H04W28/08 ,  H04W28/02 ,  H04W88/06 ,  H04L12/801

CPC classification number: H04W28/22 ,  H04L1/0002 ,  H04L1/0015 ,  H04L1/0025 ,  H04L1/0026 ,  H04L47/14 ,  H04W28/0236 ,  H04W28/08 ,  H04W88/06

Abstract: LWA (LTE/WLAN Aggregation) is a tight integration at radio level which allows for real-time channel and load aware radio resource management across WLAN and LTE to provide significant user perceived throughput (UPT) improvement. When enabling LWA, packets are routed to a base station (eNB) for performing PDCP functionalities as an LTE PDU. Afterwards, the eNB can dispatch the PDU either delivered over LTE link or WLAN link. The UPT improvement depends on how the eNB dispatches the PDU over LTE link or WLAN link. In one novel aspect, the eNB can acquire channel information, load information, and throughput estimation regarding with WLAN link and LTE link. As a result, the eNB can optimize UPT and LWA PDU dispatching algorithm.

公开(公告)号：US20160337485A1

公开(公告)日：2016-11-17

申请号：US15153959

申请日：2016-05-13

Applicant: MEDIATEK INC. .

Inventor： Pavan Santhana Krishna Nuggehalli ,  Chie-Ming Chou ,  Chia-Chun Hsu

IPC: H04L29/06 ,  H04L12/911 ,  H04L12/741 ,  H04W28/06

CPC classification number: H04L69/22 ,  H04L45/74 ,  H04L47/825 ,  H04L69/03 ,  H04L69/18 ,  H04L69/324 ,  H04W4/00 ,  H04W88/06

Abstract: Apparatus and methods are provided for user-plane LWA PDU routing. In one novel aspect, LTE PDU packets are routed through a WLAN AP to a UE by encapsulation of the data packets. In one embodiment, a bridge/VLAN architecture is used. The UE identifies one or more Ethernet Frames received the WLAN interface as containing the PDCP PDUs by decoding the EtherType. In another embodiment, the WLAN terminated tunneling is used by decoding the EtherType of indicating the PDCP type. In another novel aspect, an UE-terminated tunneling is created. In one embodiment, the IP tunneling is used. In another embodiment, the GRE tunneling is used. The GRE header contains a KEY field to identify the packets as being the LWA packets. In yet another embodiment, the IPSec tunneling is used. The SPI of the header is used to identify the packets as being the LWA data packets.

Abstract translation: 为用户平面LWA PDU路由提供了设备和方法。 在一个新颖的方面，通过数据分组的封装，LTE PDU分组通过WLAN AP路由到UE。 在一个实施例中，使用桥/ VLAN架构。 UE通过解码EtherType，识别接收到WLAN接口的一个或多个以太网帧包含PDCP PDU。 在另一个实施例中，通过解码指示PDCP类型的EtherType来使用WLAN终止隧道。 在另一个新颖的方面，创建了UE终止的隧道。 在一个实施例中，使用IP隧道。 在另一个实施例中，使用GRE隧道。 GRE标头包含一个KEY字段，用于将数据包标识为LWA数据包。 在另一个实施例中，使用IPSec隧道。 标头的SPI用于将数据包标识为LWA数据包。

公开(公告)号：US20160234752A1

公开(公告)日：2016-08-11

申请号：US15015396

申请日：2016-02-04

Applicant: MEDIATEK INC.

Inventor： Chia-Chun Hsu ,  Pavan Santhana Krishna Nuggehalli ,  Chie-Ming Chou

IPC: H04W40/02 ,  H04L12/46 ,  H04L12/741 ,  H04W76/02

CPC classification number: H04W40/02 ,  H04L12/4633 ,  H04L12/4641 ,  H04L45/66 ,  H04L45/74 ,  H04W76/12 ,  H04W76/16

Abstract: Apparatus and methods are provided for LWA PDU routing. In one novel aspect, LTE PDU packets are routed through a WLAN AP to a UE by encapsulation of the data packets. An adaption layer encapsulate the whole packet as an Ethernet frame by appending the Ethernet MAC header to the payload. In other embodiments, the adaption layer encapsulates LTE PDU as GRE packet, configures VLAN for WLAN AP. In another novel aspect, the LTE PDU is identified by at least one of methods comprising the EtherType value, the source address, the GRE header, and the GTP header. In another embodiment, the default path is always used for LWA routing. In yet another novel aspect, the LTE PDU is forwarded by the MAC address, by the GRE tunnel configuration, or by the GTP tunnel configuration.

Abstract translation: 为LWA PDU路由提供了设备和方法。 在一个新颖的方面，通过数据分组的封装，LTE PDU分组通过WLAN AP路由到UE。 适配层通过将以太网MAC头附加到有效载荷来将整个分组封装为以太网帧。 在其他实施例中，适配层将LTE PDU封装为GRE分组，为WLAN AP配置VLAN。 在另一个新颖的方面，LTE PDU由包括EtherType值，源地址，GRE标头和GTP报头的方法中的至少一种来标识。 在另一个实施例中，默认路径总是用于LWA路由。 在另一个新颖的方面，LTE PDU由MAC地址，GRE隧道配置或GTP隧道配置转发。

公开(公告)号：US20160234726A1

公开(公告)日：2016-08-11

申请号：US15015382

申请日：2016-02-04

Applicant: MEDIATEK INC.

Inventor： Pavan Santhana Krishna Nuggehalli ,  Chia-Chun Hsu ,  Chie-Ming Chou

IPC: H04W36/00 ,  H04W36/14

CPC classification number: H04W36/0022 ,  H04W36/0061 ,  H04W36/0072 ,  H04W36/0094 ,  H04W36/14 ,  H04W48/08 ,  H04W84/12 ,  H04W88/06

Abstract: Apparatus and methods are provided for selection and data aggregation for the LWA. In one novel aspect, the UE connected with a first RAN receives a LWA assistance configuration and selects a second RAN based on the LWA assistance configuration. The UE aggregates data traffic from the first RAN and the selected second RAN. In one embodiment, the information request-and-response procedure is used, which allows the first RAN to query the UE about its second RAN association status. In another embodiment, the selection request-and-response procedure is used, which allows the first RAN to exercise some control over which base station of the second RAN is selected by the UE and for the UE to send relevant information about its second RAN connectivity to the first RAN. In another novel aspect, the UE selects a DRB based on the LWA DRB configuration through either a NAS procedure or an operator configuration.

Abstract translation: 提供了用于LWA的选择和数据聚合的装置和方法。 在一个新颖的方面，与第一RAN连接的UE接收LWA辅助配置，并且基于LWA辅助配置选择第二RAN。 UE聚合来自第一RAN和所选择的第二RAN的数据业务。 在一个实施例中，使用信息请求和响应过程，其允许第一RAN向UE询问其第二RAN关联状态。 在另一个实施例中，使用选择请求和响应过程，其允许第一RAN对UE选择第二RAN的哪个基站进行一些控制，并且UE发送关于其第二RAN连接的相关信息 到第一个RAN。 在另一个新颖的方面，UE通过NAS过程或操作员配置基于LWA DRB配置来选择DRB。

公开(公告)号：US09345019B2

公开(公告)日：2016-05-17

申请号：US14840340

申请日：2015-08-31

Applicant: MEDIATEK INC.

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

IPC: H04W72/04 ,  H04W72/12 ,  H04W76/04

CPC classification number: H04W72/042 ,  H04L5/0053 ,  H04L5/0094 ,  H04L5/0098 ,  H04W72/0413 ,  H04W72/1284 ,  H04W76/28

Abstract: Various schemes are provided to improve SR resource utilization by adapting SR resource allocation to traffic pattern. In a first Scheme, SR resource allocation is configured more accurately. In one example, UE provides assistant information for eNB to determine or adjust SR configuration based on the received assistant information. In a second Scheme, multiple SR periods are configured and adapted to traffic pattern. In one example, eNB configures a set of SR resources with multiple SR periods, and UE applies different SR periods based on predefined events. Unused SR resources could be recycled by eNB for PUSCH data transmission. In a third Scheme, multiple SR allocations are configured and adapted to concerned applications. In one example, eNB configures multiple sets of SR resources adapted to predefined applications, and UE applies SR configurations based on corresponding applications. The additional SR configurations could be activated and/or deactivated.

公开(公告)号：US20150257161A1

公开(公告)日：2015-09-10

申请号：US14639437

申请日：2015-03-05

Applicant: MEDIATEK INC.

Inventor： Chia-Chun Hsu ,  Chie-Ming Chou

IPC: H04W72/04

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

Abstract: A UE establishes an RRC connection with a base station for an application in a mobile communication network. The UE acquires a barring indication that indicates whether scheduling request (SR) barring is applicable for the application. The UE then acquires prioritized barring parameters for SR barring if applicable. The prioritized barring parameters is associated with a priority of the application. Finally, the UE determines whether to send a scheduling request for an arrived packet based on the prioritized barring parameters. In one embodiment, the application is associated with a quality of service (QoS) class indicator (QCI), and the priority of the application is based on the QCI. The prioritized SR barring mechanism based on QCI can be applied for RRC Connected mode with finer granularity.

Abstract translation: UE建立与用于移动通信网络中的应用的基站的RRC连接。 UE获取指示调度请求（SR）限制是否适用于该应用的限制指示。 然后，UE可以获得用于SR限制的优先权限制参数（如果适用）。 优先级限制参数与应用程序的优先级相关联。 最后，UE基于优先级限制参数来确定是否发送到达分组的调度请求。 在一个实施例中，应用与服务质量（QoS）类别指示符（QCI）相关联，并且应用的优先级基于QCI。 基于QCI的优先级SR限制机制可以应用于具有更细粒度的RRC连接模式。

公开(公告)号：US20130201852A1

公开(公告)日：2013-08-08

申请号：US13756838

申请日：2013-02-01

Applicant: MEDIATEK, INC.

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

IPC: H04W24/08

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

Abstract: A method of triggering and reporting traffic statistics in a cellular network is proposed. A UE establishes an RRC connection with a base station. The UE collects traffic statistics upon detecting a trigger event. The traffic statistics comprises packet inter-arrival time. The trigger event may be detected by the UE or by the base station. The UE then determines a representation of the traffic statistics and report the result to the base station. The report may be triggered by the UE or by the base station based on another trigger event. Upon receiving the traffic statistics, the base station determines RRC reconfiguration parameters. In one example, DRX timer values are determined based on intra-burst packet inter-arrival time. In another example, RRC release timer is determined based on inter-burst packet inter-arrival time.

Abstract translation: 提出了一种在蜂窝网络中触发和报告流量统计的方法。 UE建立与基站的RRC连接。 检测到触发事件后，UE收集流量统计信息。 流量统计包括分组到达时间。 触发事件可以由UE或基站检测。 然后，UE确定流量统计的表示并将结果报告给基站。 报告可以由UE或基站基于另一个触发事件来触发。 在接收到流量统计时，基站确定RRC重配置参数。 在一个示例中，基于突发间分组到达之间时间来确定DRX定时器值。 在另一示例中，基于突发间分组到达之间时间来确定RRC释放定时器。