公开(公告)号：US09203562B2

公开(公告)日：2015-12-01

申请号：US12380538

申请日：2009-02-28

申请人： Yih-Shen Chen

发明人： Yih-Shen Chen

IPC分类号： H04L27/00 ,  H04L1/18

CPC分类号： H04L1/1835 ,  H04L1/1851

摘要： In a Hybrid Automatic Repeat ReQuest (HARQ) communication system, a receiver receives from a transmitter a HARQ sub-burst. A retransmission counter (RE_TX_CNT) in the receiver is incremented if either: (i) the receiver cannot decode the sub-burst, or (ii) no retransmission of the sub-burst is received within a Predetermined Retransmission Delay (PRD) interval. If RE_TX_CNT reaches a Maximal Retransmission Count (MAX_RE_CNT), then information for the sub-burst that was previously stored for HARQ purposes in a soft combining buffer in the receiver is flushed. Parameters that set the PRD interval and the MAX_RE_CNT value are pre-negotiated between the transmitter and the receiver. In another embodiment, if a novel timer in the receiver indicates that a first threshold time has elapsed after receipt of an undecodable HARQ transmission then buffered information is marked, whereas if the timer indicates that a second threshold time has elapsed then the marked information is flushed.

公开(公告)号：US08804658B2

公开(公告)日：2014-08-12

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： H04W4/00 ,  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：US08520542B2

公开(公告)日：2013-08-27

申请号：US12924650

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： H04J1/16 ,  H04L12/26 ,  H04L12/28 ,  H04W4/00

CPC分类号： H04W52/54 ,  H04W52/146 ,  H04W52/241 ,  H04W52/42

摘要： A method of uplink power control in a wireless OFDMA system is provided. A serving base station first configures a fast feedback channel by transmitting a feedback allocation message to a mobile station. The mobile station then reports downlink channel information via the allocated fast feedback channel. Based on the reported downlink channel information, the serving base station estimates uplink channel quality and thereby detects a channel variation and generates an uplink power adjustment message that delivers a power offset to adjust the transmitting power level of the mobile station. In one novel aspect, the uplink power adjustment message also comprises feedback allocation information that re-configures the fast feedback channel without extra signaling overhead. In addition, the novel power adjustment message eliminates redundant information such that it is transmitted via a minimum resource unit without requiring extra resource.

摘要翻译： 提供了一种在无线OFDMA系统中的上行链路功率控制的方法。 服务基站首先通过向移动台发送反馈分配消息来配置快速反馈信道。 移动台然后经由分配的快速反馈信道报告下行链路信道信息。 基于所报告的下行链路信道信息，服务基站估计上行链路信道质量，从而检测信道变化，并产生传递功率偏移以调整移动台的发射功率电平的上行链路功率调整消息。 在一个新颖的方面，上行链路功率调整消息还包括重新配置快速反馈信道而没有额外的信令开销的反馈分配信息。 另外，新的功率调整消息消除了冗余信息，使得它经由最小资源单元被传输，而不需要额外的资源。

公开(公告)号：US08515481B2

公开(公告)日：2013-08-20

申请号：US12584396

申请日：2009-09-03

申请人： Yih-Shen Chen ,  Chung-Hsien Hsu

发明人： Yih-Shen Chen ,  Chung-Hsien Hsu

IPC分类号： H04B7/00

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.

摘要翻译： 提供了一种用于多载波无线网络中的移动台的功率管理方法。 首先通过在主射频（RF）载波上执行初始测距来建立移动台和服务基站之间的主要连接。 然后通过在次RF载波上执行周期性测距来建立移动台和基站之间的二次连接。 为了实现有效的电力管理，移动台执行开环功率控制，并获得主载波的长期链路测量（CSI）。 然后，移动台基于主载波CSI调整载波特定参数。 对于传送正在进行的数据流量的RF载波，每个RF载波更新闭环功率控制。 当移动台进入睡眠模式操作时，它在主RF载波上接收业务指示消息，然后动态地唤醒一个或多个对应的RF载波用于数据接收。

公开(公告)号：US08238370B2

公开(公告)日：2012-08-07

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： H04J3/24

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：US20120044906A1

公开(公告)日：2012-02-23

申请号：US13373071

申请日：2011-11-01

申请人： Yih-Shen Chen ,  Chih-Yuan Lin

发明人： Yih-Shen Chen ,  Chih-Yuan Lin

IPC分类号： H04W72/04

CPC分类号： H04L5/0051 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0091 ,  H04L5/0094 ,  H04W72/14

摘要： A method of multi-set RRC signaling for ap-SRS configuration is provided to enhance ap-SRS flexibility. An eNB transmits a plurality of sets of UE-specific SRS parameters to a UE via upper layer messaging in a multi-carrier wireless communication system. The eNB also determines triggering information of a selected set of UE-specific SRS parameters and an indicated carrier for the UE. The eNB then transmits an uplink or downlink grant over a primary carrier, the grant comprises triggering information for the UE to send an ap-SRS over the indicated carrier using the selected set of UE-specific SRS parameters. In one embodiment of joint signaling, the plurality of sets of UE-specific SRS parameters are signaled together in a single RRC transmission. In another embodiment of separate signaling, each set of UE-specific SRS parameters is signaled independently.

摘要翻译： 提供了用于ap-SRS配置的多集RRC信令的方法以增强ap-SRS灵活性。 eNB在多载波无线通信系统中经由上层消息传送向UE发送多组UE特定的SRS参数。 eNB还确定UE特定SRS参数的所选集合的触发信息以及针对UE的所指示的载波。 eNB然后通过主载波发送上行链路或下行链路许可，该许可包括触发信息，以使UE使用所选择的UE专用SRS参数集来在所指示的载波上发送ap-SRS。 在联合信令的一个实施例中，在单个RRC传输中将多组UE特定SRS参数一起发信号通知。 在单独信令的另一个实施例中，UE集合的特定SRS参数被独立地发信号通知。

公开(公告)号：US20110199945A1

公开(公告)日：2011-08-18

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： H04B7/208 ,  H04W4/00 ,  H04J1/00

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：US20080004023A1

公开(公告)日：2008-01-03

申请号：US11822074

申请日：2007-07-02

申请人： Yih-Shen Chen ,  Han-Chiang Liu

发明人： Yih-Shen Chen ,  Han-Chiang Liu

IPC分类号： H04Q7/20

CPC分类号： H04W52/0229 ,  H04W8/22 ,  H04W24/10 ,  H04W48/20 ,  Y02D70/124 ,  Y02D70/164

摘要： A cell reselection method and system using an active measurement set in a mobile communication, which determines whether the user equipment enters in a power-saving mode based on the signal strength and strength variability of a serving cell and the mobile feature of a user equipment. In the power-saving mode, in accordance with the signal strength of neighboring cells on the serving cell, an active measurement set is formed with cells that are selected from the neighboring cells broadcasted by a WCDMA system and have stronger signals. The user equipment only requires measuring the cells in the active measurement set. Thus, since the cell number of the active measurement set is smaller than that defined by the WCDMA system, the number of neighboring cells required to be measured is reduced, so as to reduce the power dissipation and increase the idle time on the user equipment.

摘要翻译： 一种在移动通信中使用主动测量集的小区重选方法和系统，其基于服务小区的信号强度和强度可变性以及用户设备的移动特征来确定用户设备是否进入功率节省模式。 在省电模式下，根据服务小区的相邻小区的信号强度，由从WCDMA系统广播的相邻小区中选择的小区形成有源测量集，并具有较强的信号。 用户设备只需要测量主动测量组中的单元。 因此，由于有源测量集合的小区数小于由WCDMA系统定义的小区数，所以需要测量的相邻小区的数量减少，从而降低功耗并增加用户设备上的空闲时间。

公开(公告)号：US20050282546A1

公开(公告)日：2005-12-22

申请号：US10872572

申请日：2004-06-22

申请人： Chung-Ju Chang ,  Jia-Ching Shen ,  Yih-Shen Chen ,  Yung-Han Chen ,  Yi-Ting Wang ,  Chang Meng-Chun

发明人： Chung-Ju Chang ,  Jia-Ching Shen ,  Yih-Shen Chen ,  Yung-Han Chen ,  Yi-Ting Wang ,  Chang Meng-Chun

IPC分类号： H04W36/02 ,  H04Q7/20

CPC分类号： H04W36/02

摘要： Methods and systems for providing fast handoff in WLAN-like communications system construct a caching candidate set based upon a weighted handoff tendency coefficient. The weighted handoff tendency coefficient is based upon the handoff matrix and the weighting factor. The handoff matrix is an adaptive two-dimensional array that provides a list of nearby access points relative to a mobile station and the weighting factor is a value that prioritizes the nearby access points based upon a signal quality indication. A home access point, once it is triggered to initialize proactive caching, provides the caching candidate set with registration data of the mobile station before a transfer of a connection between the home access point and one of the access points on the caching candidate set.

摘要翻译： 用于在WLAN类通信系统中提供快速切换的方法和系统基于加权切换趋势系数构建缓存候选集。 加权切换趋势系数基于切换矩阵和权重因子。 切换矩阵是自适应二维阵列，其提供相对于移动台的附近接入点的列表，加权因子是基于信号质量指示对附近接入点进行优先级的值。 家庭接入点一旦被触发来初始化主动缓存，就在缓存候选集之间的接入点与接入点之间的连接传送之前，将移动台的登记数据提供给缓存候选集。