公开(公告)号：US09949271B2

公开(公告)日：2018-04-17

申请号：US14639414

申请日：2015-03-05

Applicant: MEDIATEK INC.

Inventor： Chia-Chun Hsu ,  Chie-Ming Chou

IPC: H04W72/04 ,  H04L29/06 ,  H04W48/02 ,  H04W80/04 ,  H04W4/00

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.

公开(公告)号：US20160338102A1

公开(公告)日：2016-11-17

申请号：US15152750

申请日：2016-05-12

Applicant: MEDIATEK INC.

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

IPC: H04W74/08 ,  H04W48/16 ,  H04W76/04

CPC classification number: H04W74/08 ,  H04L5/001 ,  H04L12/4645 ,  H04W48/16 ,  H04W72/085 ,  H04W72/10 ,  H04W76/27 ,  H04W84/042 ,  H04W84/12 ,  H04W88/06

Abstract: LTE-WLAN aggregation (LWA) at the radio access network level promises significant gain in system capacity and user quality of experience (QoE). In order to support QoS over LWA, there is a need to develop mechanisms to ensure that the access category (AC) classification chosen by a wireless device (AP in the case of downlink, and UE in case of uplink) is consistent with the QoS requirements of the EPS bearer/DRB and/or subscriber profile to which the traffic belongs. The cellular LTE network can provision QoS for both downlink and uplink data flows that are transferred using LWA access.

公开(公告)号：US20160338074A1

公开(公告)日：2016-11-17

申请号：US15153990

申请日：2016-05-13

Applicant: MEDIATEK INC.

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

IPC: H04W72/08 ,  H04W76/04

CPC classification number: H04W76/27 ,  H04W28/0236 ,  H04W28/12 ,  H04W76/15 ,  H04W84/042 ,  H04W84/12 ,  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 capacity and quality of experience (QoE) improvements. When enabling LWA, packets are routed to a base station (eNB) for performing PDCP functionalities as an LTE PDU. Afterwards, the eNB can schedule the PDU either translated over LTE link or WLAN link. The eNB can acquire packet delay information regarding the WLAN link or obtain PDCP layer performance feedback from the UE. As a result, the eNB can adjust PDCP parameter setting and LWA scheduling accordingly.

Abstract translation: LWA（LTE-WLAN聚合）是无线电级别的紧密集成，允许WLAN和LTE之间的实时信道和负载感知无线电资源管理提供显着的容量和质量的体验（QoE）改进。 当启用LWA时，分组被路由到用于执行作为LTE PDU的PDCP功能的基站（eNB）。 之后，eNB可以通过LTE链路或WLAN链路调度PDU。 eNB可以获取关于WLAN链路的分组延迟信息，或从UE获得PDCP层性能反馈。 结果，eNB可以相应地调整PDCP参数设置和LWA调度。

公开(公告)号：US20160338073A1

公开(公告)日：2016-11-17

申请号：US15152733

申请日：2016-05-12

Applicant: MEDIATEK INC.

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

IPC: H04W72/08 ,  H04L12/46 ,  H04W72/10

CPC classification number: H04W74/08 ,  H04L5/001 ,  H04L12/4645 ,  H04W48/16 ,  H04W72/085 ,  H04W72/10 ,  H04W76/27 ,  H04W84/042 ,  H04W84/12 ,  H04W88/06

Abstract: LTE-WLAN aggregation (LWA) at the radio access network level promises significant gain in system capacity and user quality of experience (QoE). In order to support QoS over LWA, there is a need to develop mechanisms to ensure that the access category (AC) classification chosen by a wireless device (AP in the case of downlink, and UE in case of uplink) is consistent with the QoS requirements of the EPS bearer/DRB and/or subscriber profile to which the traffic belongs. The cellular LTE network can provision QoS for both downlink and uplink data flows that are transferred using LWA access.

Abstract translation: 在无线电接入网级别的LTE-WLAN聚合（LWA）可以显着提高系统容量和用户体验质量（QoE）。 为了在LWA上支持QoS，需要开发机制以确保无线设备（在下行链路的情况下为AP，上行链路的UE）选择的接入类别（AC）分类与QoS一致 业务所属的EPS承载/ DRB和/或用户简档的要求。 蜂窝LTE网络可以为使用LWA接入传送的下行链路和上行链路数据流提供QoS。

公开(公告)号：US20160338068A1

公开(公告)日：2016-11-17

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: H04W72/04 ,  H04W24/10 ,  H04W72/08

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.

Abstract translation: LWA（LTE / WLAN聚合）是无线电级别的紧密集成，其允许跨WLAN和LTE的实时信道和负载感知无线电资源管理，以提供显着的用户感知吞吐量（UPT）改进。 当启用LWA时，分组被路由到用于执行作为LTE PDU的PDCP功能的基站（eNB）。 之后，eNB可以通过LTE链路或WLAN链路发送PDU。 UPT的改进取决于eNB如何通过LTE链路或WLAN链路分派PDU。 在一个新颖的方面，eNB可以获取关于WLAN链路和LTE链路的信道信息，负载信息和吞吐量估计。 因此，eNB可以优化UPT和LWA PDU调度算法。

公开(公告)号：US20160337904A1

公开(公告)日：2016-11-17

申请号：US15154041

申请日：2016-05-13

Applicant: MEDIATEK INC.

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

IPC: H04W28/12 ,  H04W28/02 ,  H04W24/10 ,  H04W76/02

CPC classification number: H04W28/18 ,  H04W8/18 ,  H04W8/205 ,  H04W8/24 ,  H04W24/10 ,  H04W28/021 ,  H04W28/0289 ,  H04W28/12 ,  H04W28/24 ,  H04W36/22 ,  H04W48/14 ,  H04W88/023 ,  H04W88/06

Abstract: Apparatus and methods are provided for finer control for WLAN association. In one novel aspect, an enhanced NCWIK capability negotiation, an UE assistance information exchange, and an enhanced steering command are performed. In one embodiment, the enhanced NCIWK capacity negotiation includes additional UE information for fine selection. In another embodiment, the UE assistance information is sent to the eNB in addition to the measurement report. The UE assistance information is configured by the eNB. In yet another embodiment, the enhanced traffic steering command includes information of a target AP and one or more target channels. In one embodiment, the enhanced traffic steering command further includes channel direction information. In another novel aspect, the UE selects different UL and DL channels based on the received enhanced traffic steering command. In one embodiment, the UL and DL channels for the UE are different channels from the same AP or from different RATS.

Abstract translation: 提供了用于WLAN关联的更精细控制的装置和方法。 在一个新颖的方面，执行增强的NCWIK能力协商，UE辅助信息交换和增强的转向命令。 在一个实施例中，增强的NCIWK容量协商包括用于精细选择的附加UE信息。 在另一个实施例中，除了测量报告之外，还向eNB发送UE辅助信息。 UE辅助信息由eNB配置。 在另一个实施例中，增强的业务转向命令包括目标AP和一个或多个目标信道的信息。 在一个实施例中，增强的业务转向命令还包括信道方向信息。 在另一个新颖的方面，UE基于接收到的增强业务转向命令来选择不同的UL和DL信道。 在一个实施例中，用于UE的UL和DL信道是来自相同AP或来自不同RATS的不同信道。

公开(公告)号：US20150163810A1

公开(公告)日：2015-06-11

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: H04W72/04 ,  H04W36/26 ,  H04W24/08

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.

Abstract translation: 提出了一种在蜂窝网络中收集和提供流量统计的方法。 UE建立与基站的RRC连接。 UE开始收集包含CDF曲线的流量统计信息或分组到达时间的PDF图。 UE可以从基站接收用于流量统计信息收集的测量配置。 然后，UE向基站报告业务统计信息的表示以用于RRC重新配置。 UE还可以从基站接收指定表示格式的报告请求。 表示格式包括在对应的到达间时间点，CDF的至少一个斜率，CDF中的一个或多个陡峭事件或PDF范围中的一个或多个概率值。

公开(公告)号：US08989042B2

公开(公告)日：2015-03-24

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: H04L12/26 ,  H04W24/02 ,  H04W24/08 ,  H04W24/10

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。

公开(公告)号：US20150009815A1

公开(公告)日：2015-01-08

申请号：US14320873

申请日：2014-07-01

Applicant: MEDIATEK INC.

Inventor： Chia-Chun Hsu ,  Chie-Ming Chou

IPC: H04W28/02 ,  H04W72/04 ,  H04W52/02

CPC classification number: H04W28/0221 ,  H04L47/14 ,  H04L47/24 ,  H04L47/32 ,  H04W28/0205 ,  H04W28/0231 ,  H04W52/0216 ,  H04W52/0251 ,  H04W72/0413 ,  H04W72/1242 ,  H04W76/28 ,  H04W76/38 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/21 ,  Y02D70/24 ,  Y02D70/25

Abstract: A method of uplink shaping and scheduling request (SR) prohibition in RRC Connected Mode is proposed. A UE applies DRX operation in a wireless network, the UE is in RRC Connection mode. 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 transmits a scheduling request (SR) to the network. If the data packet belongs to a background traffic type, then the UE buffers the data packet and is prohibited from sending the SR to the network until a triggering condition is satisfied. By reducing the activity of uplink transmission, UE power consumption is improved and signaling overhead is reduced.

Abstract translation: 提出了RRC连接模式下上行整形和调度请求（SR）禁止的方法。 UE在无线网络中应用DRX操作，UE处于RRC连接模式。 UE处理要发送到网络的数据包。 数据包与流量类型相关联。 如果数据分组属于正常流量类型，则UE向网络发送调度请求（SR）。 如果数据包属于后台流量类型，则UE缓存数据包，并且禁止向SR发送SR，直到触发条件成立为止。 通过减少上行链路传输的活动，提高了UE功耗，降低了信令开销。

公开(公告)号：US10567554B2

公开(公告)日：2020-02-18

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

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.