公开(公告)号：WO2019214666A1

公开(公告)日：2019-11-14

申请号：PCT/CN2019/086151

申请日：2019-05-09

Applicant: MEDIATEK INC.

Inventor： CHEN, Yih-Shen ,  TSAI, Chun-Fan ,  HSU, Chia-Chun

IPC: H04W72/04

Abstract: A method to speed up uplink data access during a radio resource control (RRC) reconfiguration procedure is proposed. UE first sends an RRC request, and in response receives an RRC reconfiguration message from BS. UE then decodes the RRC reconfiguration message and performs reconfiguration. UE also waits for UL grant for transmitting RRC reconfiguration complete with UL data if available. In one embodiment, BS provides the UL grant in a common search space while UE is performing the reconfiguration, and UE does not need to wait the UL grant until after the reconfiguration is done. In other words, the reconfiguration and the UL grant occurs in parallel, which reduces access delay for UL data. In an alternative embodiment, BS provides UL grant in RRC reconfiguration message, so that UE does not have to receive UL grant while performing the reconfiguration.

公开(公告)号：WO2019137412A1

公开(公告)日：2019-07-18

申请号：PCT/CN2019/071105

申请日：2019-01-10

Applicant: MEDIATEK INC.

Inventor： HUANG, Din-Hwa ,  QU, Wenze ,  CHEN, Yih-Shen ,  YU, Tsang-Wei

IPC: H04W24/00

Abstract: A User Equipment (UE) including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from a service network. The controller receives a measurement configuration and a Discontinuous Reception (DRX) configuration from the service network via the wireless transceiver, extends a measurement period indicated by the measurement configuration, and performs a cell measurement via the wireless transceiver in the extended measurement period.

公开(公告)号：WO2019024936A1

公开(公告)日：2019-02-07

申请号：PCT/CN2018/098926

申请日：2018-08-06

Applicant: MEDIATEK INC.

Inventor： TSAI, Chun-Fan ,  CHEN, Yih-Shen

IPC: H04W76/19

Abstract: A method of supporting fast dual connectivity (DC) configuration after fallback in a 4G/5G network is proposed. A UE is configured with MR-DC (Multi-RAT Dual Connectivity) and is connected to both LTE/NR RAT in LTE/NR serving cells of master cell group (MCG) and secondary cell group (SCG). The UE has to fall back to legacy 2G/3G RAT and is forced to release the DC configuration. The UE records the serving cell information before fallback procedure and sends assistant information of the DC configuration to the network after fallback procedure. The assistant information comprises the stored serving cell information and optional additional measurement results for candidate SCG cells. The assistant information allows the network to resume the highspeed data transmission soon after the fallback procedure.

公开(公告)号：WO2018228588A1

公开(公告)日：2018-12-20

申请号：PCT/CN2018/091825

申请日：2018-06-19

Applicant: MEDIATEK INC.

Inventor： HUANG, Din-Hwa ,  LIN, Hsuan-Li ,  YU, Tsang-Wei ,  CHEN, Yih-Shen ,  CHUANG, Chiao-Yao

IPC: H04W8/00 ,  H04W24/10

CPC classification number: H04W36/0094 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0057 ,  H04W36/0088 ,  H04W36/38 ,  H04W72/042 ,  H04W72/046

Abstract: Apparatus and methods are provided for RRM measurement in the NR network. In one novel aspect, the RRM measurement is configured with one measurement gap for SS block and CSI-RS. In one embodiment, an extended MGL (eMGL) is configured such that the SS block and CSI-RS is measurement within one measurement gap. In another embodiment, the shorter MGL (sMGL) that is shorter than the standard MGL is configured. In another novel aspect, the CSI-RS is allocated adjacent to the SS blocks such that one measurement gap is configured for both the SS block and CSI-RS measurement. In another novel aspect, the CSI-RS measurement is conditionally configured. In yet another novel aspect, the UE decodes the time index of the SS block conditionally.

公开(公告)号：WO2017140249A1

公开(公告)日：2017-08-24

申请号：PCT/CN2017/073755

申请日：2017-02-16

Applicant: MEDIATEK INC.

Inventor： YANG, Weidong ,  CHEN, Bo-Si ,  LI, Chien-Chang ,  CHEN, Yih-Shen ,  NUGGEHALLI, Pavan Santhana Krishna

IPC: H04W74/08 ,  H04W72/12

CPC classification number: H04W74/04 ,  H04W16/14 ,  H04W72/042 ,  H04W72/087 ,  H04W72/1268 ,  H04W72/1289 ,  H04W74/006 ,  H04W74/0808 ,  H04W76/10

Abstract: A method of dynamic spectrum sharing mechanism called listen-before-talk (LBT) is proposed for uplink transmission in Licensed Assisted Access (LAA). A maximum channel occupancy time (MCOT) including downlink (DL) transmission from one eNB and uplink (UL) transmission to the same eNB is introduced. A transmission sequence is defined as a number of subframes including possible partial subframes for DL and/or UL within a MCOT. The transmission in the first subframe among the transmission sequence is conducted after a Category 4 LBT. The transmission sequence within the MCOT can be initiated by either a DL transmission or an UL transmission. After the first subframe in a transmission sequence, LBT for another transmission is a fast DL LBT and/or fast UL LBT. Further, a Category 4 LBT can be converted to a short LBT (e.g., one shot CCA) for more efficient channel access.

Abstract translation: 针对许可辅助接入（LAA）中的上行链路传输，提出了一种叫做先听后说（LBT）的动态频谱共享机制。 引入了包括来自一个eNB的下行链路（DL）传输和到同一eNB的上行链路（UL）传输的最大信道占用时间（MCOT）。 传输序列被定义为包括用于MCOT内的DL和/或UL的可能部分子帧的多个子帧。 传输序列中的第一个子帧中的传输是在类别4 LBT之后进行的。 MCOT内的传输序列可以由DL传输或UL传输启动。 在传输序列中的第一个子帧之后，用于另一传输的LBT是快速DL LBT和/或快速UL LBT。 此外，类别4LBT可以转换为短LBT（例如，单次CCA）以获得更高效的信道接入。

公开(公告)号：WO2014146615A1

公开(公告)日：2014-09-25

申请号：PCT/CN2014/073953

申请日：2014-03-24

Applicant: MEDIATEK INC.

Inventor： YU, Chia-Hao ,  HSU, Chia-Chun ,  CHEN, Yih-Shen ,  CHEN, Ju-Ya

IPC: H04W4/10

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 de-multiplexes DL traffic received either from the multicast MBMS bearer or from the unicast EPS bearer into a single group communication application.

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将从组播MBMS承载或从单播EPS承载接收的DL业务解复用为单组通信应用。

公开(公告)号：WO2014075616A1

公开(公告)日：2014-05-22

申请号：PCT/CN2013/087122

申请日：2013-11-14

Applicant: MEDIATEK INC.

Inventor： JOHANSSON, Per Johan Mikael ,  LIN, Shiang-Jiun ,  CHEN, Yih-Shen ,  PLUMB, William

IPC: H04W24/00

CPC classification number: H04W24/04 ,  H04W24/10 ,  H04W36/0083 ,  H04W76/18

Abstract: A method of reporting UE measurement state information in RLF report is provided. A UE performs radio measurements of a serving cell and neighbor cells in a mobile communication network. The UE evaluates a measurement reporting criteria and attempts to access the network to deliver a measurement report if the criteria is met. The UE then detects a radio link failure or a handover failure event and reconnects to the network by performing RRC reestablishment or RRC establishment. Finally, the UE transmits a failure event report to the network. The failure event report comprises UE measurement state information corresponds to the failure event. The UE measurement state information helps the network to determine whether to apply corrective actions to mitigate the failure.

Abstract translation: 提供了一种在RLF报告中报告UE测量状态信息的方法。 UE在移动通信网络中执行服务小区和相邻小区的无线电测量。 如果满足标准，则UE评估测量报告标准并尝试访问网络以递送测量报告。 然后，UE通过执行RRC重建或RRC建立来检测无线电链路故障或切换失败事件并重新连接到网络。 最后，UE向网络发送故障事件报告。 故障事件报告包括对应于故障事件的UE测量状态信息。 UE测量状态信息有助于网络确定是否应用纠正措施来减轻故障。

公开(公告)号：WO2013004189A1

公开(公告)日：2013-01-10

申请号：PCT/CN2012/078240

申请日：2012-07-05

Applicant: MEDIATEK INC. ,  CHEN, Yih-Shen ,  CHOU, Chao-Chin ,  HSU, Chia-Chun

Inventor： CHEN, Yih-Shen ,  CHOU, Chao-Chin ,  HSU, Chia-Chun

IPC: H04W76/02

CPC classification number: H04W36/26 ,  H04W36/0066 ,  H04W48/02 ,  H04W48/08 ,  H04W76/11 ,  H04W76/19

Abstract: A method of providing Local IP Access (LIPA) indication is proposed. In one novel aspect, an enhanced cell selection method is proposed using LIPA capability information. Based on LIPA capability related information, a UE is able to prioritize LIPA-capable cells and establish a corresponding packet data network (PDN) connection accordingly. In one embodiment, LIPA information is informed to the UE via Non Access Stratum (NAS) signaling. The UE stores LIPA capability information when receiving a NAS message from a mobility management entity (MME). Later on, when the UE performs cell selection or reselection in idle mode, the UE can use the stored LIPA capability information to prioritize LIPA-capable cells.

Abstract translation: 提出了一种提供本地IP访问（LIPA）指示的方法。 在一个新颖的方面，提出了使用LIPA能力信息的增强小区选择方法。 基于LIPA能力相关信息，UE能够优先考虑具有LIPA能力的小区并相应地建立对应的分组数据网络（PDN）连接。 在一个实施例中，通过非接入层（NAS）信令向UE通知LIPA信息。 当从移动性管理实体（MME）接收到NAS消息时，UE存储LIPA能力信息。 稍后，当UE在空闲模式下执行小区选择或重选时，UE可以使用存储的LIPA能力信息来优先考虑具有LIPA能力的小区。

公开(公告)号：WO2012130170A1

公开(公告)日：2012-10-04

申请号：PCT/CN2012/073386

申请日：2012-03-31

Applicant: MEDIATEK INC. ,  JOHANSSON, Per Johan Mikael ,  CHEN, Yih-Shen ,  LIN, Shiang-Jiun

Inventor： JOHANSSON, Per Johan Mikael ,  CHEN, Yih-Shen ,  LIN, Shiang-Jiun

IPC: H04W36/00

CPC classification number: H04L41/0604 ,  H04L41/0686 ,  H04W36/00 ,  H04W76/19

Abstract: A method of failure event report correlation is proposed. A UE detects a failure event in a first cell served by a first base station, and the UE is assigned with a previous C-RNTI. The failure event may include a radio link failure, a handover failure, or a RACH failure. The UE then performs an RRC establishment procedure with a second base, and the UE is assigned with a new C-RNTI. After the RRC establishment, the UE transmits a failure event report along with the correlation information to the second base station. The second base station then forwards the failure event report and the previous C-RNTI to the first base station. The first base station can correlate the failure event report with the previous failure event based on the previous C-RNTI to avoid double bookkeeping and improve MRO decision for SON.

Abstract translation: 提出了一种故障事件报告相关的方法。 UE检测由第一基站服务的第一小区中的故障事件，并且向UE分配先前的C-RNTI。 故障事件可能包括无线电链路故障，切换故障或RACH故障。 然后，UE执行具有第二基站的RRC建立过程，并且向UE分配新的C-RNTI。 在RRC建立之后，UE将故障事件报告与相关信息一起发送到第二基站。 第二基站然后将故障事件报告和先前的C-RNTI转发到第一基站。 第一个基站可以根据先前的C-RNTI将故障事件报告与先前的故障事件相关联，以避免双重记录，并改善SON的MRO决策。

公开(公告)号：WO2012062196A1

公开(公告)日：2012-05-18

申请号：PCT/CN2011/081915

申请日：2011-11-08

Applicant: MEDIATEK INC. ,  CHEN, Yih-Shen ,  JOHANSSON, Per Johan Mikael

Inventor： CHEN, Yih-Shen ,  JOHANSSON, Per Johan Mikael

IPC: H04W24/10

CPC classification number: H04W72/1231 ,  H04B7/0626 ,  H04W24/08 ,  H04W36/0088 ,  H04W36/0094 ,  H04W48/02 ,  H04W72/0406 ,  H04W72/082 ,  H04W72/085 ,  H04W74/0866 ,  H04W76/10 ,  H04W76/28 ,  H04W84/045

Abstract: A method of inter-cell interference coordination is provided for UE measurements and network access procedure.In a first embodiment, a UE in idle mode performs measurements on received radio signals applying a simplified radio resource restriction for interference coordination. The UE determines the restricted radio resource without receiving explicit measurement configuration. In a second embodiment, during various phases of a network access procedure, the UE indicates its interference status and/or additional interference information to its serving base station to enhance interference coordination. In a third embodiment, the UE in connected mode performs measurements on both interference-protected transmission resources and non-interference-protected transmission resources. The UE measurement results are used for scheduling, radio link monitoring, and/or mobility management to increase radio spectrum efficiency and to improve user experience.

Abstract translation: 提供了用于UE测量和网络接入过程的小区间干扰协调的方法。在第一实施例中，处于空闲模式的UE对接收到的无线电信号执行测量，以应用用于干扰协调的简化无线电资源限制。 UE在不接收明确的测量配置的情况下确定受限的无线电资源。 在第二实施例中，在网络接入过程的各个阶段期间，UE向其服务基站指示其干扰状态和/或附加干扰信息以增强干扰协调。 在第三实施例中，处于连接模式的UE对受干扰保护的传输资源和无干扰保护的传输资源进行测量。 UE测量结果用于调度，无线链路监控和/或移动性管理，以提高无线电频谱效率并改善用户体验。