公开(公告)号：US09319851B2

公开(公告)日：2016-04-19

申请号：US14221722

申请日：2014-03-21

Applicant: MEDIATEK INC.

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

IPC: H04B7/00 ,  H04W4/08 ,  H04W4/10 ,  H04W36/32 ,  H04W72/00 ,  H04W36/08 ,  H04W76/00 ,  H04W4/06 ,  H04W74/00

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：US09155105B2

公开(公告)日：2015-10-06

申请号：US14584330

申请日：2014-12-29

Applicant: MEDIATEK INC.

Inventor： Chia-Chun Hsu

IPC: H04W4/00 ,  H04W72/00 ,  H04M11/04 ,  H04W74/00 ,  H04W48/02 ,  H04W4/22 ,  H04W8/02 ,  H04W48/10

CPC classification number: H04W74/002 ,  H04W4/70 ,  H04W4/90 ,  H04W8/02 ,  H04W48/02 ,  H04W48/10

Abstract: An enhanced access control method is proposed for machine-type communications (MTC) in a 3GPP LTE-Advanced network. An MTC device is configured for enhanced access barring (EAB). When the MTC device attempts access to the network, the NAS layer checks whether EAB is applicable for the MTC device. If yes, then the NAS layer forwards EAB configuration to the AS layer for further EAB control. Based on the EAB configuration, a base station broadcasts EAB information to UEs via system information block. The EAB information indicates whether barring is applied to a number of EAB categories and a number of access classes. Based on the EAB information, the MTC devices performs EAB for access attempt to RRC. If access is not barred under EAB, then the MTC device further performs ACB for access attempt to RRC.

公开(公告)号：US09144015B2

公开(公告)日：2015-09-22

申请号：US13644048

申请日：2012-10-03

Applicant: MEDIATEK, Inc.

Inventor： Per Johan Mikael Johansson ,  Chia-Chun Hsu

IPC: H04W52/02 ,  H04W80/04 ,  H04W88/06 ,  H04W88/08

CPC classification number: H04W52/0225 ,  H04W52/0216 ,  H04W52/0251 ,  Y02D70/00 ,  Y02D70/124 ,  Y02D70/1262 ,  Y02D70/24

Abstract: A method of user equipment (UE) indication of traffic-related information to network is provided. The method comprises a UE determining a traffic indicator and transmitting the traffic indicator to a base station. In one embodiment, the traffic indicator indicates either that default power consumption is preferred or low power consumption is preferred. For example, when the UE is in background traffic or sparse traffic, low power consumption is preferred. In another embodiment, the traffic indicator indicates a time pattern of the traffic history. From the network perspective, upon receiving and evaluating information contained in the traffic indicator, the network triggers a QoS modification procedure by applying one or more QoS modification algorithms.

Abstract translation: 提供了一种用户设备（UE）向网络指示与流量有关的信息的方法。 该方法包括UE确定业务指示符并将业务指示符发送到基站。 在一个实施例中，业务指示符指示该默认功耗是优选的或低功耗是优选的。 例如，当UE处于后台业务或稀疏业务时，优选低功耗。 在另一个实施例中，业务指示符指示业务历史的时间模式。 从网络的角度来看，网络接收和评估流量指标中包含的信息时，通过应用一个或多个QoS修改算法来触发QoS修改过程。

公开(公告)号：US20150215945A1

公开(公告)日：2015-07-30

申请号：US14606913

申请日：2015-01-27

Applicant: MEDIATEK INC.

Inventor： Chia-Chun Hsu ,  Per Johan Mikael Johansson

IPC: H04W72/04 ,  H04L12/819 ,  H04W28/02

CPC classification number: H04L47/21 ,  H04L47/31 ,  H04W28/0278 ,  H04W28/08 ,  H04W28/085 ,  H04W72/0486 ,  H04W72/1284

Abstract: Apparatus and methods are provided to enhance BSR and LCP procedures for the dual connectivity system. In one novel aspect, the BSR is handled for each MAC entity according to one or more allocation rules. In one embodiment, the allocation rule is configured by the network. In another embodiment, the allocation rule is determined by the UE based on historic statics. In yet another embodiment, the allocation rule is determined by the UE based on information from the network. In one embodiment, the allocation rule indicates percentage of traffic allocated to each MAC entity. In another novel aspect, LCP is performed independently for each MAC entity if the split bearer is configured and the prioritized bit rate (PBR) and the bucket size duration (BSD) are signaled for each eNB. In one embodiment, separate sets of LCG variables are maintained independently for each MAC entity.

Abstract translation: 提供装置和方法来增强双连接系统的BSR和LCP程序。 在一个新颖的方面，根据一个或多个分配规则为每个MAC实体处理BSR。 在一个实施例中，分配规则由网络配置。 在另一个实施例中，分配规则由UE基于历史静态确定。 在另一个实施例中，基于来自网络的信息由UE确定分配规则。 在一个实施例中，分配规则指示分配给每个MAC实体的业务的百分比。 在另一个新颖的方面，如果分配承载被配置并且为每个eNB发信号通知优先化比特率（PBR）和桶大小持续时间（BSD），则针对每个MAC实体独立地执行LCP。 在一个实施例中，为每个MAC实体独立地维护单独的LCG变量集合。

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：US20150119098A1

公开(公告)日：2015-04-30

申请号：US14584493

申请日：2014-12-29

Applicant: MEDIATEK INC.

Inventor： Chia-Chun Hsu ,  Michael Roberts ,  Chih-Yuan Lin ,  Yih-Shen Chen ,  I-Kang Fu

IPC: H04W52/24

CPC classification number: H04W52/243 ,  H04W52/34 ,  H04W52/365 ,  H04W52/367 ,  H04W52/38 ,  H04W72/048

Abstract: A power control method to mitigate in-device coexistence (IDC) interference is provided. A wireless communication device (UE) is equipped with a first LTE radio module and a second co-located WiFi/BT/GSNN radio module. Upon detecting coexistence or IDC interference, the UE applies power control method to mitigate the interference. In a first embodiment, the LTE radio module adjusts its power parameters locally without informing the serving eNB. In a second embodiment, the LTE radio module adjusts its power parameters and implicit informs the eNB through existing PHR reporting. In a third embodiment, the LTE radio module changes its power or power class and explicitly informs the eNB through UE capability or new RRC message or MAC CE. Power control can be used as a low cost and lightweight solution before applying other heavyweight solutions that either require more resource or control overhead, or have higher impact on throughput.

Abstract translation: 提供了减轻设备间共存（IDC）干扰的功率控制方法。 无线通信设备（UE）配备有第一LTE无线电模块和第二共同配置的WiFi / BT / GSNN无线电模块。 在检测到共存或IDC干扰时，UE采用功率控制方法来减轻干扰。 在第一实施例中，LTE无线电模块在本地调整其功率参数而不通知服务eNB。 在第二实施例中，LTE无线电模块调整其功率参数，并通过现有的PHR报告暗示通知eNB。 在第三实施例中，LTE无线电模块改变其功率或功率等级，并通过UE能力或新的RRC消息或MAC CE明确地通知eNB。 在应用其他重量级解决方案之前，功率控制可以用作低成本和轻量级的解决方案，需要更多资源或控制开销，或对吞吐量有较高的影响。

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：US20140348132A1

公开(公告)日：2014-11-27

申请号：US14456134

申请日：2014-08-11

Applicant: MEDIATEK INC.

Inventor： Yih-Shen Chen ,  Chao-Chin Chou ,  Chia-Chun Hsu

IPC: H04W36/26 ,  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：US20140286224A1

公开(公告)日：2014-09-25

申请号：US14221689

申请日：2014-03-21

Applicant: MEDIATEK INC.

Inventor： Chia-Hao Yu ,  Chia-Chun Hsu ,  Yih-Shen Chen ,  Chien-Chun Huang-Fu ,  Yu-Syuan Jheng

IPC: H04W4/08 ,  H04W36/32

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. In one embodiment, The UE requests to switch the DL multicast traffic from the multicast MBMS bearer to the unicast EPS bearer upon detecting that the UE is approaching an MBMS coverage boundary. In another embodiment, the UE transmits an indication of preferred target cells to the network before performing a handover and thereby maintaining multicast service continuity of the group communication.

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。 在一个实施例中，当UE正在接近MBMS覆盖边界时，UE请求将DL组播业务从组播MBMS承载切换到单播EPS承载。 在另一个实施例中，UE在执行切换之前向网络发送优选目标小区的指示，从而保持组通信的多播服务连续性。