公开(公告)号：US20090310563A1

公开(公告)日：2009-12-17

申请号：US12456006

申请日：2009-06-09

申请人： Chao-Chin Chou ,  I-Kang Fu ,  Yih-Shen Chen

发明人： Chao-Chin Chou ,  I-Kang Fu ,  Yih-Shen Chen

IPC分类号： H04W36/00 ,  H04W4/00

CPC分类号： H04W36/12 ,  H04L5/0007 ,  H04L27/0006 ,  H04L27/2618 ,  H04L27/2655 ,  H04W36/0027 ,  H04W36/0072 ,  H04W36/0088 ,  H04W36/08 ,  H04W36/18 ,  H04W48/16

摘要： A comprehensive solution is provided for multi-carrier scanning and handover operations in OFDM wireless systems. A multi-carrier scanning is any scanning operation that involves multi-carrier radio frequency carriers. In one embodiment, a mobile station communicates with a serving base station over a primary carrier, and performs scanning over one or more determined carriers. A multi-carrier handover is any handover operation that involves multiple radio frequency carriers. In a first embodiment, a break-before-entry (BBE) handover procedure with fast synchronization is provided. In a second embodiment, an entry-before-break (EBB) handover procedure through unavailable intervals is provided. In a third embodiment, EBB handover procedures for both inter-FA and intra-FA using multiple carriers are provided. Finally, in a fourth embodiment, intra-BS handover procedures are provided. The multi-carrier handover procedures may be applied to 2-to-2 or N-to-N carriers handover situation. The overall scanning time and handover interruption time may be reduced through the provided procedures.

摘要翻译： 为OFDM无线系统中的多载波扫描和切换操作提供了全面的解决方案。 多载波扫描是涉及多载波射频载波的任何扫描操作。 在一个实施例中，移动台通过主载波与服务基站进行通信，并对一个或多个确定的载波执行扫描。 多载波切换是涉及多个射频载波的任何切换操作。 在第一实施例中，提供了具有快速同步的中断前进（BBE）切换过程。 在第二实施例中，提供了通过不可用间隔的切入前（EBB）切换过程。 在第三实施例中，提供了使用多个载波的FA间和FA内的EBB切换程序。 最后，在第四实施例中，提供了BS内的切换过程。 多载波切换过程可以应用于2对2或N到N个载波切换情况。 通过提供的程序可以减少整个扫描时间和切换中断时间。

公开(公告)号：US08676208B2

公开(公告)日：2014-03-18

申请号：US12456006

申请日：2009-06-09

申请人： Chao-Chin Chou ,  I-Kang Fu ,  Yih-Shen Chen

发明人： Chao-Chin Chou ,  I-Kang Fu ,  Yih-Shen Chen

IPC分类号： H04W4/00 ,  H04W36/00

CPC分类号： H04W36/12 ,  H04L5/0007 ,  H04L27/0006 ,  H04L27/2618 ,  H04L27/2655 ,  H04W36/0027 ,  H04W36/0072 ,  H04W36/0088 ,  H04W36/08 ,  H04W36/18 ,  H04W48/16

摘要： A comprehensive solution is provided for multi-carrier scanning and handover operations in OFDM wireless systems. A multi-carrier scanning is any scanning operation that involves multi-carrier radio frequency carriers. In one embodiment, a mobile station communicates with a serving base station over a primary carrier, and performs scanning over one or more determined carriers. A multi-carrier handover is any handover operation that involves multiple radio frequency carriers. In a first embodiment, a break-before-entry (BBE) handover procedure with fast synchronization is provided. In a second embodiment, an entry-before-break (EBB) handover procedure through unavailable intervals is provided. In a third embodiment, EBB handover procedures for both inter-FA and intra-FA using multiple carriers are provided. Finally, in a fourth embodiment, intra-BS handover procedures are provided. The multi-carrier handover procedures may be applied to 2-to-2 or N-to-N carriers handover situation. The overall scanning time and handover interruption time may be reduced through the provided procedures.

摘要翻译： 为OFDM无线系统中的多载波扫描和切换操作提供了全面的解决方案。 多载波扫描是涉及多载波射频载波的任何扫描操作。 在一个实施例中，移动台通过主载波与服务基站进行通信，并对一个或多个确定的载波执行扫描。 多载波切换是涉及多个射频载波的任何切换操作。 在第一实施例中，提供了具有快速同步的中断前进（BBE）切换过程。 在第二实施例中，提供了通过不可用间隔的切入前（EBB）切换过程。 在第三实施例中，提供了使用多个载波的FA间和FA内的EBB切换程序。 最后，在第四实施例中，提供了BS内的切换过程。 多载波切换过程可以应用于2对2或N到N个载波切换情况。 通过提供的程序可以减少整个扫描时间和切换中断时间。

公开(公告)号：US08588205B2

公开(公告)日：2013-11-19

申请号：US12924676

申请日：2010-09-30

申请人： Yu-Hao Chang ,  Yih-Shen Chen

发明人： Yu-Hao Chang ,  Yih-Shen Chen

IPC分类号： H04B7/216 ,  H04B7/208 ,  H04B7/185 ,  H04L27/28

CPC分类号： H04W52/146 ,  H04W52/241

摘要： A method of power control message indexing is provided in a wireless Orthogonal Frequency Division Multiple Access (OFDMA) network. A base station configures fast feedback channels (FFBCHs) and mobile stations report downlink channel information via the configured FFBCHs. Based on the received channel information, the base station estimates uplink channel quality and detects any channel variation. In response to uplink channel variation, the base station delivers power offsets to adjust the transmit power levels of the mobile stations. In one advantageous aspect, the power control commands for mobile stations are aggregated and the indexing scheme of the power control commands is implicitly based on the configured FFBCHs. For example, if a FFBCH is located at a first location in an uplink frame, then a following power control command in response to the FFBCH is located at a second location in a downlink frame, the second location is located after the first location with a predefined fixed delay time.

摘要翻译： 在无线正交频分多址（OFDMA）网络中提供功率控制消息索引的方法。 基站配置快速反馈信道（FFBCH），移动台通过配置的FFBCHs报告下行链路信道信息。 基于所接收的信道信息，基站估计上行信道质量并检测任何信道变化。 响应于上行链路信道变化，基站提供功率偏移以调整移动站的发射功率电平。 在一个有利的方面，用于移动站的功率控制命令被聚合，并且功率控制命令的索引方案隐含地基于配置的FFBCH。 例如，如果FFBCH位于上行链路帧中的第一位置，则响应于FFBCH的后续功率控制命令位于下行链路帧中的第二位置，则第二位置位于第一位置之后， 预定义的固定延迟时间。

公开(公告)号：US08489152B2

公开(公告)日：2013-07-16

申请号：US12924196

申请日：2010-09-21

申请人： Yih-Shen Chen ,  Chung-Hsien Hsu

发明人： Yih-Shen Chen ,  Chung-Hsien Hsu

IPC分类号： H04B1/38

CPC分类号： H04W52/06 ,  H04L5/001 ,  H04L5/0098 ,  H04W52/0225 ,  H04W52/0229 ,  H04W52/08 ,  H04W52/10 ,  H04W52/146 ,  H04W52/16 ,  H04W52/34 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/146 ,  Y02D70/23 ,  Y02D70/24

摘要： A method of power management for a mobile station in a multi-carrier wireless network is provided. A primary connection between the mobile station and a serving base station is first established by performing initial ranging over a primary radio frequency (RF) carrier. A secondary connection between the mobile station and the base station is then established by performing periodic ranging over a secondary RF carrier. To achieve efficient power management, the mobile station performs Open Loop Power Control and obtains long-term link measurement (CSI) of the primary carrier. The mobile station then adjusts carrier-specific parameters based on the primary carrier CSI. For RF carriers that convey on-going data traffic, Close Loop Power Control is updated per RF carrier. When the mobile station enters sleep mode operation, it receives traffic indication messages on the primary RF carrier and then dynamically wakes up one or more corresponding RF carriers for data reception.

公开(公告)号：US20120120846A1

公开(公告)日：2012-05-17

申请号：US13294499

申请日：2011-11-11

申请人： Chien-Hwa Hwang ,  Ciou-Ping Wu ,  Yih-Shen Chen

发明人： Chien-Hwa Hwang ,  Ciou-Ping Wu ,  Yih-Shen Chen

IPC分类号： H04L12/28 ,  H04W24/00

CPC分类号： H04W24/08 ,  H04W4/023 ,  H04W24/10

摘要： A communications apparatus is provided. A controller determines two different sub-frame subsets for configuring a peer communications apparatus to perform channel state information measurement according to time-domain variation of a level of interference of the peer communications apparatus obtained from one or more previous measurement result(s). A transceiver transmits a configuration message carrying information regarding the two sub-frame subsets to the peer communications apparatus and receives one or more measurement result reporting message(s) carrying information regarding the measurement result(s) from the peer communications apparatus.

摘要翻译： 提供一种通信装置。 控制器根据从一个或多个先前测量结果获得的对等通信设备的干扰电平的时域变化来确定用于配置对等通信设备来执行信道状态信息测量的两个不同子帧子集。 收发器将对两个子帧子集进行信息的配置消息发送到对等通信装置，并从对等体通信装置接收携带有关测量结果的信息的一个或多个测量结果报告消息。

公开(公告)号：US20100098025A1

公开(公告)日：2010-04-22

申请号：US12589374

申请日：2009-10-21

申请人： Yih-Shen Chen ,  Chao-Chin Chou ,  I-Kang Fu

发明人： Yih-Shen Chen ,  Chao-Chin Chou ,  I-Kang Fu

IPC分类号： H04W36/00

CPC分类号： H04W36/0061 ,  H04W36/0066

摘要： Methods for a mobile station to handover between IEEE 802.16e and 802.16m systems are provided. The mobile station is served by an IEEE 802.16e-only base station or an IEEE 802.16e zone of a 16e/16m-conexistence base station. In a zone-switch based handover procedure, the mobile station first performs an IEEE 802.16e legacy handover procedure such that the mobile station handovers from the serving base station to an IEEE 802.16e zone of a target base station. The mobile station then performs a zone-switch procedure such that the mobile station switches from the IEEE 802.16e zone to an IEEE 802.16m zone of the target base station. In a direct handover procedure, the mobile station performs an IEEE 802.16m handover procedure such that the mobile station handovers from the serving base station to the IEEE 802.16m zone of the target base station directly.

摘要翻译： 提供了移动台在IEEE 802.16e和802.16m系统之间切换的方法。 移动台由IEEE 802.16e专用基站或16e / 16m共存基站的IEEE 802.16e区域服务。 在基于区切换的切换过程中，移动台首先执行IEEE 802.16e传统切换过程，使得移动台从服务基站切换到目标基站的IEEE 802.16e区域。 然后，移动台执行区域切换过程，使得移动站从目标基站的IEEE 802.16e区切换到IEEE 802.16m区。 在直接切换过程中，移动台执行IEEE 802.16m切换过程，使得移动台直接从目标基站的服务基站切换到IEEE 802.16m区域。

公开(公告)号：US07653041B2

公开(公告)日：2010-01-26

申请号：US11128794

申请日：2005-05-12

申请人： Chih-Yung Shih ,  Ray-Guang Cheng ,  Chung-Ju Chang ,  Yih-Shen Chen

发明人： Chih-Yung Shih ,  Ray-Guang Cheng ,  Chung-Ju Chang ,  Yih-Shen Chen

IPC分类号： H04W4/00 ,  H04W72/00 ,  H04J3/16 ,  H04J3/24 ,  H04B7/212

CPC分类号： H04W74/02 ,  H04W52/0216 ,  H04W74/06 ,  Y02D70/142

摘要： This invention provides a method for power-efficient transmission supporting integrated service over WLAN. The said invention combines the polling-based and the contention-based mechanisms, named on-demand polling (ODP). In the ODP scheme, a voice station is in the polling list when it is in the active mode. During the idle mode, it is configured to operate in the sleep mode for saving power. Also, it adopts the contention-based mechanism to join the list again while returning from the idle mode. On the other hand, the data station adopts the contention-based mechanism to transmit its packets over WLAN. In addition, to achieve service differentiation, the said invention also employs a prioritized access probability for voice over data services. Simulation results show that the said invention can reduce the power consumption for voice stations and enhance the throughput for data stations.

摘要翻译： 本发明提供了一种支持WLAN集成业务的功率效率传输方法。 所述发明结合了基于轮询和基于争用的机制，命名为点播轮询（ODP）。 在ODP方案中，当处于活动模式时，语音站位于轮询列表中。 在空闲模式下，它被配置为在睡眠模式下工作以节省电力。 此外，它采用基于争用的机制，从空闲模式返回时再次加入列表。 另一方面，数据站采用基于竞争的机制通过WLAN传输其数据包。 此外，为了实现服务差异，所述发明还采用用于语音数据服务的优先接入概率。 仿真结果表明，本发明可以降低语音站的功耗，提高数据站的吞吐量。

公开(公告)号：US20100002612A1

公开(公告)日：2010-01-07

申请号：US12459711

申请日：2009-07-06

申请人： Chung-Hsien Hsu ,  Yih-Shen Chen

发明人： Chung-Hsien Hsu ,  Yih-Shen Chen

IPC分类号： G08C17/02

CPC分类号： H04W52/0232 ,  Y02D70/1262 ,  Y02D70/23 ,  Y02D70/24

摘要： A method of establishing a sleep mode operation between a mobile station and its serving base station is provided in a wireless communications system. When sleep mode operation is active, the MS enters into a series of sleep cycle and each sleep cycle comprises a listening window followed by a sleep window. In one novel aspect, each sleep cycle is associated with a set of sleep cycle parameters including a Sleep Cycle Length and an adjustable Listening Window Length. Each set of sleep cycle parameters is determined based on a predefined traffic characteristic of a data communication flow between the MS and it serving BS. Different embodiments of sleep cycle parameters are provided for real-time traffic, non-real-time traffic, real-time and non-real-time mixed traffic, and multi-rate transmission traffic. By using sleep cycle-based parameters, the efficiency of sleep mode operation is improved.

摘要翻译： 在无线通信系统中提供在移动台及其服务基站之间建立睡眠模式操作的方法。 当睡眠模式操作激活时，MS进入一系列睡眠周期，每个睡眠周期包括一个监听窗口，随后是一个睡眠窗口。 在一个新颖的方面，每个睡眠周期与一组睡眠周期参数相关联，包括睡眠周期长度和可调听力窗口长度。 基于MS与其服务BS之间的数据通信流的预定的业务特性来确定每组睡眠周期参数。 提供睡眠周期参数的不同实施例用于实时业务，非实时业务，实时和非实时混合业务以及多速率传输业务。 通过使用基于睡眠循环的参数，提高了睡眠模式操作的效率。

公开(公告)号：US20090185543A1

公开(公告)日：2009-07-23

申请号：US12352681

申请日：2009-01-13

申请人： Yih-Shen Chen ,  I-Kang Fu

发明人： Yih-Shen Chen ,  I-Kang Fu

IPC分类号： H04W8/00

CPC分类号： H04W48/08 ,  H04W28/06 ,  H04W52/0229 ,  Y02D70/146

摘要： A method for transmitting system information bit streams of one or more base stations in a wireless communication system is provided. The method includes: identifying network-entry-related bit streams and non-network-entry-related bit streams from the system information bit streams, where the network-entry-related bit streams carry essential system information for a terminal to access a network through at least one of the base stations; modulating the network-entry-related bit streams according to a first set of modulation and coding schemes (MCSs) and modulating the non-network-entry-related bit streams according to a second set of MCSs; and transmitting the system information bit streams with different frequencies, where the network-entry-related bit streams are periodically transmitted according to a first predetermined period.

摘要翻译： 提供一种在无线通信系统中发送一个或多个基站的系统信息比特流的方法。 该方法包括：从系统信息比特流识别与网络入口相关的比特流和非网络入口相关比特流，其中网络入口相关比特流携带用于终端访问网络的基本系统信息 至少一个基站; 根据第一组调制和编码方案（MCS）调制与网络入口相关的比特流，并根据第二组MCS对非网络入口相关比特流进行调制; 以及发送具有不同频率的系统信息比特流，其中根据第一预定周期周期性地发送网络入口相关比特流。

公开(公告)号：US09237523B2

公开(公告)日：2016-01-12

申请号：US12459711

申请日：2009-07-06

申请人： Chung-Hsien Hsu ,  Yih-Shen Chen

发明人： Chung-Hsien Hsu ,  Yih-Shen Chen

IPC分类号： H04B1/16 ,  H04W52/02 ,  H04B1/06

CPC分类号： H04W52/0232 ,  Y02D70/1262 ,  Y02D70/23 ,  Y02D70/24

摘要： A method of establishing a sleep mode operation between a mobile station and its serving base station is provided in a wireless communications system. When sleep mode operation is active, the MS enters into a series of sleep cycle and each sleep cycle comprises a listening window followed by a sleep window. In one novel aspect, each sleep cycle is associated with a set of sleep cycle parameters including a Sleep Cycle Length and an adjustable Listening Window Length. Each set of sleep cycle parameters is determined based on a predefined traffic characteristic of a data communication flow between the MS and it serving BS. Different embodiments of sleep cycle parameters are provided for real-time traffic, non-real-time traffic, real-time and non-real-time mixed traffic, and multi-rate transmission traffic. By using sleep cycle-based parameters, the efficiency of sleep mode operation is improved.

摘要翻译： 在无线通信系统中提供在移动台及其服务基站之间建立睡眠模式操作的方法。 当睡眠模式操作激活时，MS进入一系列睡眠周期，每个睡眠周期包括一个监听窗口，随后是一个睡眠窗口。 在一个新颖的方面，每个睡眠周期与一组睡眠周期参数相关联，包括睡眠周期长度和可调节听力窗口长度。 基于MS与其服务BS之间的数据通信流的预定的业务特性来确定每组睡眠周期参数。 提供睡眠周期参数的不同实施例用于实时业务，非实时业务，实时和非实时混合业务以及多速率传输业务。 通过使用基于睡眠循环的参数，提高了睡眠模式操作的效率。