公开(公告)号：US20140286223A1

公开(公告)日：2014-09-25

申请号：US14221664

申请日：2014-03-21

Applicant: MEDIATEK INC.

Inventor： Chia-Hao Yu ,  Chia-Chun Hsu ,  Yih-Shen Chen

IPC: H04W4/08

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. The multicast MBMS bearer is associated with a Temporary Mobile Group Identifier (TMGI), and wherein the TMGI is associated with the communication group ID. The UE later enters RRC_IDLE mode and releases a radio bearer of the unicast EPS bearer while keep monitoring the multicast MBMS bearer for the DL multicast traffic.

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。 组播MBMS承载与临时移动组标识符（TMGI）相关联，并且其中TMGI与通信组ID相关联。 UE随后进入RRC_IDLE模式，并释放单播EPS承载的无线电承载，同时继续监视DL组播业务的组播MBMS承载。

公开(公告)号：US20130294307A1

公开(公告)日：2013-11-07

申请号：US13871226

申请日：2013-04-26

Applicant: MEDIATEK, INC.

Inventor： Per Johan Mikael Johansson ,  Chia-Chun Hsu

IPC: H04W52/02

CPC classification number: H04W52/0209 ,  H04W52/0216 ,  H04W76/28 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/24 ,  Y02D70/25

Abstract: Methods for UE enhancements for diverse data application are disclosed. In one embodiment of the invention, the UE applies a discontinuous reception (DRX) or discontinuous transmission (DTX) operation in a wireless network. The UE detects one or more predefined traffic conditions. Based on the detected traffic conditions, the UE either stays in the long DRX state longer or extends the short DRX cycle timer. In other embodiments of the invention, the UE configures an idle mode trigger condition. The UE detects one or more predefined traffic condition. Based on the detected traffic conditions, the UE may restart the inactivity timer. In other embodiments of the invention, the UE detects one or more predefined traffic conditions. The UE adaptively adjusts RLF triggering parameters based on the detected traffic conditions.

Abstract translation: 公开了用于各种数据应用的UE增强的方法。 在本发明的一个实施例中，UE在无线网络中应用不连续接收（DRX）或不连续传输（DTX）操作。 UE检测一个或多个预定义的交通状况。 基于检测到的业务条件，UE或者长时间停留在长DRX状态或延长短DRX周期定时器。 在本发明的其他实施例中，UE配置空闲模式触发条件。 UE检测到一个或多个预定义的交通状况。 基于检测到的业务状况，UE可以重新启动不活动定时器。 在本发明的其他实施例中，UE检测一个或多个预定义的交通状况。 UE基于检测到的交通状况自适应地调整RLF触发参数。

公开(公告)号：US20130250828A1

公开(公告)日：2013-09-26

申请号：US13848942

申请日：2013-03-22

Applicant: MEDIATEK, INC.

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

IPC: H04W72/04

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.

Abstract translation: 提供各种方案，通过使SR资源分配适应流量模式来提高SR资源利用率。 在第一个方案中，更精确地配置SR资源分配。 在一个示例中，UE提供用于eNB的辅助信息以基于接收到的辅助信息来确定或调整SR配置。 在第二方案中，多个SR周期被配置并适应于业务模式。 在一个示例中，eNB配置具有多个SR周期的一组SR资源，并且UE基于预定义事件来应用不同的SR周期。 未使用的SR资源可以被eNB回收用于PUSCH数据传输。 在第三个方案中，多个SR分配被配置并适应于相关应用。 在一个示例中，eNB配置适应于预定义应用的多组SR资源，并且UE基于相应的应用来应用SR配置。 可以激活和/或停用其他SR配置。

公开(公告)号：US20130201851A1

公开(公告)日：2013-08-08

申请号：US13756809

申请日：2013-02-01

Applicant: Mediatek, Inc.

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

IPC: H04W24/02

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：US11991572B2

公开(公告)日：2024-05-21

申请号：US17417549

申请日：2019-09-30

Applicant: MEDIATEK INC.

Inventor： Li-Chuan Tseng ,  Yuanyuan Zhang ,  Yung-Hsiang Liu ,  Chun-Fan Tsai ,  Chia-Chun Hsu

IPC: H04W36/00 ,  H04W36/36

CPC classification number: H04W36/00837 ,  H04W36/0058 ,  H04W36/0061 ,  H04W36/0085 ,  H04W36/36

Abstract: Methods and apparatus are provided for UE-triggered handover and early preparation with coexistence of the network-triggered handover. In one novel aspect, the UE is configured early measurement report configuration, receives an early handover command from the serving base station with a handover candidate cell list, monitors handover triggering conditions for each candidate cell on the handover candidate cell list based on a UE-triggered handover configuration and performs the UE-triggered handover to a candidate cell when the corresponding triggering condition is met for the candidate cell. In one embodiment, the UE receives a network-triggered handover command to a target cell, suspends the UE-triggered handover configuration and performs the network-triggered handover to the target cell. The UE discards the UE-triggered handover configuration upon success of the network-triggered handover and resumes the UE-triggered handover configuration upon failure of the network-triggered handover.

公开(公告)号：US20230041659A1

公开(公告)日：2023-02-09

申请号：US17877307

申请日：2022-07-29

Applicant: MediaTek Inc.

Inventor： Guan-Yu Lin ,  Xuelong Wang ,  Nathan Edward Tenny ,  Chia-Chun Hsu

IPC: H04W28/02

Abstract: A method is provided to support remote UE transmitting recommended bit rate query to the base station via the processing of relay UE. In one novel aspect, a new sidelink MAC CE is introduced to indicate the desired bit rate for a specific sidelink logical channel or for a specific Uu/SL radio bearer. In one novel aspect, after receiving the recommended bit rate query MAC CE, the relay UE forwards the MAC CE of this remote UE to the base station over Uu interface after adding information related to remote UE identity. In one novel aspect, the recommended bit rate query MAC CE, when received by the relay UE, is mapped to a specific uplink logical channel priority value or a specific uplink logical channel priority level, which can be used to compare priority with other UL data or UL MAC CE.

公开(公告)号：US20220239454A1

公开(公告)日：2022-07-28

申请号：US17719109

申请日：2022-04-12

Applicant: MEDIATEK INC.

Inventor： Pei-Kai Liao ,  Chia-Chun Hsu

IPC: H04L5/00 ,  H04W76/28 ,  H04W72/12

Abstract: Apparatus and methods are provided for efficient bandwidth adaptation for wideband carrier. In one novel aspect, the UE starts a BWP timer upon detecting one or more BWP timer starting triggering events, resets the BWP timer upon detecting BWP resetting triggering events, and switches to the default BWP upon expiration of the BWP timer. The BWP timer starting triggering events comprises decoding a command to switch away from the default BWP, the detection of end of DL data transmission in DRX mode. In another novel aspect, the UE only decodes the DCI indication for active BWP switching in the first three OFDM symbols of a subframe or a slot. In yet another novel aspect, when the SPS is configured for the serving cell for a UE with multiple BWPs, the SPS is configured for all the BWPs accordingly.

公开(公告)号：US20210337441A1

公开(公告)日：2021-10-28

申请号：US17369886

申请日：2021-07-07

Applicant: MEDIATEK INC.

Inventor： Yuanyuan Zhang ,  Chia-Chun Hsu

IPC: H04W36/00 ,  H04W36/32 ,  H04W76/30 ,  H04W74/08

Abstract: Apparatus and methods are provided for mobility interruption reduction with multi-RA dual-connectivity (MR-DC). In novel aspect, the UE with configured transceiver data with at least one source nodes, suspends data transceiving with the first source node upon receiving a reconfiguration message from one of the source nodes, keeps data transceiving with the second source node when accessing a first target node, wherein the second source node is one of the source nodes with active data transceiving with the UE, and suspends data transceiving with the second source node when accessing a second target node if configured. In some embodiments, the UE either keeps the source SN or the source MN while accessing the target MN or target SN by suspending the source MN or source SN.

公开(公告)号：US11102678B2

公开(公告)日：2021-08-24

申请号：US16584948

申请日：2019-09-27

Applicant: MEDIATEK INC.

Inventor： Yung-Hsiang Liu ,  Chia-Chun Hsu ,  Nathan Edward Tenny

IPC: H04W28/06 ,  H04W80/02 ,  H04L29/06

Abstract: Methods and apparatus are provided for the RRC message segmentation. In one novel aspect, the UE obtains the size Z of the RRC message and the size limit L of the underlying transmission at layer S of the UE protocol stack, wherein the layer S either the RRC layer, the PDCP layer, or a sublayer between an RRC layer and a PDCP layer. The UE triggers RRC message segmentation upon detecting Z is greater than L. In another embodiment, the layer R of the protocol stack of the UE receives, in order, a sequence of chunks of an RRC message, reassembles of the RRC message, wherein the layer R is selected from a same layer as the layer S and a layer higher than the layer S. In one novel aspect, the size limitation L is either predefined or obtained through network notification or UE inquiry.

公开(公告)号：US10602447B2

公开(公告)日：2020-03-24

申请号：US15200603

申请日：2016-07-01

Applicant: MEDIATEK INC.

Inventor： Chia-Chun Hsu ,  Per Johan Mikael Johansson

IPC: H04W52/02 ,  H04W68/02 ,  H04W48/20 ,  H04W76/28 ,  H04W36/00

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.