公开(公告)号：US20150334722A1

公开(公告)日：2015-11-19

申请号：US14753751

申请日：2015-06-29

Applicant: MEDIATEK INC.

Inventor： Yih-Shen Chen ,  Per Johan Mikael Johansson

IPC: H04W72/08 ,  H04W48/02 ,  H04B7/06

CPC classification number: H04W72/1231 ,  H04B7/0626 ,  H04W24/08 ,  H04W36/0088 ,  H04W36/0094 ,  H04W48/02 ,  H04W72/0406 ,  H04W72/082 ,  H04W72/085 ,  H04W74/0833 ,  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: 为UE测量和网络访问过程提供了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的无线电资源限制。 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，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。

公开(公告)号：US09144062B2

公开(公告)日：2015-09-22

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 ,  H04W72/12 ,  H04L5/00

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：US09137842B2

公开(公告)日：2015-09-15

申请号：US13644077

申请日：2012-10-03

Applicant: MEDIATEK, INC.

Inventor： Per Johan Mikael Johansson ,  Chia-Chun Hsu

IPC: H04W76/04 ,  H04W36/32

CPC classification number: H04W76/04 ,  H04W36/32 ,  H04W76/20 ,  Y02D70/126

Abstract: A method of user equipment (UE) providing speed information to network is provided. The method supports obtaining speed information of the UE, detecting a trigger event and providing the speed information to the network by one or more predefined means. The speed information is taken from the group consisting of a physical speed, a physical speed mapped on a pre-defined speed group, and a virtual speed. The virtual speed comprises a cell change count or a number cells that the UE has requested RRC connection during a certain period. The UE can send the speed information to an eNB via RRC connection establishment, RRC connection re-establishment, a new IE in RRC measure report or a new RRC message.

Abstract translation: 提供了向网络提供速度信息的用户设备（UE）的方法。 该方法支持获取UE的速度信息，检测触发事件，并通过一个或多个预定义的方式向网络提供速度信息。 速度信息取自由物理速度，映射在预定义速度组上的物理速度和虚拟速度组成的组。 虚拟速度包括小区改变计数或UE在特定时段期间请求RRC连接的小区数。 UE可以经由RRC连接建立，RRC连接重建，RRC测量报告中的新IE或新的RRC消息，向eNB发送速度信息。

公开(公告)号：US20150245406A1

公开(公告)日：2015-08-27

申请号：US14709480

申请日：2015-05-12

Applicant: MEDIATEK INC.

Inventor： Per Johan Mikael Johansson ,  Yih-Shen Chen ,  Tze-Ping Low ,  William Plumb

IPC: H04W76/02 ,  H04W40/36 ,  H04W36/00

Abstract: An enhanced connection recovery upon lost RRC connection due to radio link failure (RLF) or handover failure (HOF) is proposed. A UE first establishes an RRC connection in a source cell in a mobile communication network. Later on, the UE detects a failure event and starts an RRC reestablishment procedure in a target cell to restore the RRC connection. In a first novel aspect, a fast NAS recovery process is applied to reduce the outage time in the target cell. In a second novel aspect, context fetching is used to reduce the outage time in the target cell. In a third novel aspect, a loss-less reestablishment procedure is proposed to reduce data loss during the connection recovery.

公开(公告)号：US20150215839A1

公开(公告)日：2015-07-30

申请号：US14607420

申请日：2015-01-28

Applicant: MEDIATEK INC.

Inventor： Per Johan Mikael Johansson ,  Chia-Chun Hsu ,  Yu-Syuan Jheng ,  Aimin Justin Sang

IPC: H04W36/30

CPC classification number: H04W36/30 ,  H04W28/08 ,  H04W36/14 ,  H04W36/22 ,  H04W84/12

Abstract: A method of offload selection for a UE to select between 3GPP RAT and WLAN cell is provided. The UE receives configuration information that applies to selecting WLAN or 3GPP radio access technology (RAT). The UE determines if the UE may perform WLAN offload by evaluating 3GPP radio access network (RAN) conditions where at least one RAN condition is related to a radio signal strength or a radio signal quality in 3GPP RAT. The UE then determines if there is at least one suitable WLAN cell by evaluating WLAN conditions. The UE also determines if there is candidate traffic for WLAN offload. Finally, the UE steers the determined traffic to WLAN if the UE may perform WLAN offload and if there is at least one suitable WLAN cell. Otherwise, the UE steers the determined traffic to 3GPP RAT.

Abstract translation: 提供了一种用于UE在3GPP RAT和WLAN小区之间进行选择的卸载选择的方法。 UE接收适用于选择WLAN或3GPP无线电接入技术（RAT）的配置信息。 UE通过评估其中至少一个RAN条件与3GPP RAT中的无线电信号强度或无线电信号质量相关的3GPP无线电接入网络（RAN）条件来确定UE是否可以执行WLAN卸载。 然后，UE通过评估WLAN条件来确定是否存在至少一个合适的WLAN小区。 UE还确定是否存在用于WLAN卸载的候选业务。 最后，如果UE可以执行WLAN卸载并且如果存在至少一个合适的WLAN小区，则UE将所确定的流量引导到WLAN。 否则，UE将确定的业务引导到3GPP RAT。

公开(公告)号：US08982725B2

公开(公告)日：2015-03-17

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 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 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：US08903420B2

公开(公告)日：2014-12-02

申请号：US13633463

申请日：2012-10-02

Applicant: Mediatek, Inc.

Inventor： Per Johan Mikael Johansson ,  Yih-Shen Chen

IPC: H04M11/04 ,  H04W24/08 ,  H04W64/00

CPC classification number: H04W24/08 ,  H04W64/00

Abstract: A method and apparatus for active location acquisition. An active location acquisition controller is included in a device. The active location acquisition controller can be a circuit or code running on a processor included in the device. A measurement collection request is communicated to the device. The device then determines if and how a location information is to be acquired. If the device determines that the location information is to be acquired, the device enables a location acquisition system to acquire the location information and the device then acquires the requested measurement and stores the requested measurement and the location information in the measurement log. If the device determines that the location information is not to be acquired, the device disables a location acquisition system and does not acquire the location information and the device then acquires the requested measurement and stores the requested measurement in the measurement log.

Abstract translation: 一种用于主动位置采集的方法和装置。 一个有源位置采集控制器被包含在一个设备中。 活动位置采集控制器可以是在设备中包括的处理器上运行的电路或代码。 测量收集请求被传送到设备。 然后，设备确定是否以及如何获取位置信息。 如果设备确定要获取位置信息，则设备使得位置获取系统能够获取位置信息，并且设备然后获取所请求的测量，并将所请求的测量和位置信息存储在测量日志中。 如果设备确定不获取位置信息，则设备禁用位置获取系统并且不获取位置信息，并且设备然后获取所请求的测量值并将所请求的测量值存储在测量日志中。

公开(公告)号：US20140335867A1

公开(公告)日：2014-11-13

申请号：US14273857

申请日：2014-05-09

Applicant: MEDIATEK INC.

Inventor： Chia-Chun Hsu ,  Per Johan Mikael Johansson

IPC: H04W52/02 ,  H04W68/02 ,  H04W36/00

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: A method of cell reselection enhancement is proposed. A UE obtains parameters for extended cell reselection (ECR) in a mobile communication network. The UE goes to sleep and then wakes up periodically to monitor a paging channel. The UE either applies a normal paging cycle having a normal paging cycle length or applies a power-saving paging cycle having a very long paging cycle length. The UE performs cell selection if normal paging cycle is applied. The UE performs cell reselection based on the ECR parameters if the power-saving paging cycle is applied, and if the ECR parameters are still valid based on a list of conditions. In one novel aspect, the network provides the ECR parameters for a wider area for the UE such that the UE can still use cell reselection after waking up from a very long sleep to reduce power consumption.

Abstract translation: 提出了一种细胞重选增强方法。 UE在移动通信网络中获得用于扩展小区重选（ECR）的参数。 UE进入休眠状态，然后周期性地唤醒以监视寻呼信道。 UE应用具有正常寻呼周期长度的正常寻呼周期或者应用具有非常长的寻呼周期长度的省电寻呼周期。 如果应用正常寻呼周期，则UE执行小区选择。 如果应用了省电寻呼周期，则UE基于ECR参数执行小区重选，并且如果ECR参数基于条件列表仍然有效。 在一个新颖的方面，网络为UE的更广泛的区域提供ECR参数，使得UE可以在从非常长的睡眠唤醒之后仍然使用小区重选以降低功耗。

公开(公告)号：US20140133465A1

公开(公告)日：2014-05-15

申请号：US14078789

申请日：2013-11-13

Applicant: MEDIATEK, INC.

Inventor： Per Johan Mikael Johansson ,  Shiang-Jiun Lin ,  Yih-Shen Chen ,  William Plumb

IPC: H04W36/20

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：US20140044029A1

公开(公告)日：2014-02-13

申请号：US13959755

申请日：2013-08-06

Applicant: MEDIATEK, INC.

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

IPC: H04W52/02

CPC classification number: H04W52/0212 ,  H04W52/0216 ,  H04W52/0254 ,  Y02D70/00 ,  Y02D70/122 ,  Y02D70/124 ,  Y02D70/1262 ,  Y02D70/24 ,  Y02D70/25

Abstract: A method and apparatus for UE to report preference indication and other UE assistance information to the network is proposed. In a first embodiment, the UE transmits a power preference indication to the network with a prohibition mechanism for optimal DRX configuration. A first level of prohibition is applied if the UE indicates preferring power-saving mode, and a second level of prohibition is applied if the UE indicates preferring normal mode. In a second embodiment, the UE transmits two-level speed information to the network. The two-level speed information is mapped from MSE mobility states based on a mapping rule. In a third example, the UE transmits RRC release assistance information to the network. The assistance information is based on both cell change count and RRC state transition count so that RRC inactivity time can be determined to reduce signaling overhead.

Abstract translation: 提出了一种用于向网络报告偏好指示和其他UE辅助信息的方法和装置。 在第一实施例中，UE利用用于最佳DRX配置的禁止机制向网络发送功率偏好​​指示。 如果UE表示喜欢省电模式，则应用第一级别的禁止，并且如果UE指示喜欢正常模式，则应用第二级别的禁止。 在第二实施例中，UE向网络发送两级速度信息。 基于映射规则，从MSE移动状态映射两级速度信息。 在第三示例中，UE向网络发送RRC释放辅助信息。 辅助信息基于小区改变计数和RRC状态转移计数，从而可以确定RRC不活动时间以减少信令开销。