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：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：US20090047971A1

公开(公告)日：2009-02-19

申请号：US12287990

申请日：2008-10-15

申请人： I-Kang Fu

发明人： I-Kang Fu

IPC分类号： H04W72/00

CPC分类号： H04W72/082 ,  H04W16/12 ,  H04W72/0406

摘要： Under adaptive frequency reuse technique, mobile stations in a cellular orthogonal frequency division multiple access (OFDMA) system are served by different radio resource regions with appropriate frequency reuse patterns to mitigate inter-cell interference and improve system capacity. In a first novel aspect, the mobile stations measure interference statistics and obtain interference measurement results. The mobile stations report the obtained interference measurement results to serving base stations. The serving base stations determine adaptive frequency reuse patterns based on the received interference measurement result. In a second novel aspect, a radio resource control element receives the interference measurement results, determines frequency reuse patterns and configures radio resource allocation based on the received interference measurement results. In a third novel aspect, the base stations obtain the interference measurement results and schedule the mobile stations to be served with appropriate radio resource regions.

摘要翻译： 在自适应频率复用技术下，蜂窝正交频分多址（OFDMA）系统中的移动台由具有适当频率重用模式的不同无线资源区域服务，以减轻小区间干扰并提高系统容量。 在第一个新颖的方面，移动台测量干扰统计并获得干扰测量结果。 移动台将获得的干扰测量结果报告给服务基站。 服务基站根据接收到的干扰测量结果确定自适应频率重用模式。 在第二个新颖的方面，无线电资源控制元件接收干扰测量结果，确定频率重用模式，并根据接收到的干扰测量结果配置无线电资源分配。 在第三个新颖的方面，基站获得干扰测量结果，并且调度要用适当的无线电资源区域服务的移动站。

公开(公告)号：US08989085B2

公开(公告)日：2015-03-24

申请号：US12589974

申请日：2009-10-30

申请人： I-Kang Fu

发明人： I-Kang Fu

IPC分类号： H04W72/00 ,  H04J11/00 ,  H04W56/00 ,  H04J3/06 ,  H04L27/26

CPC分类号： H04W56/0015 ,  H04J3/0641 ,  H04J11/0056 ,  H04J11/0069 ,  H04J11/0093 ,  H04L27/2627 ,  H04L27/2655 ,  H04W72/042

摘要： A method of downlink synchronization for a femto base station in a cellular orthogonal frequency division multiplexing (OFDM) system is provided. The femto base station first scans one or more received reference signals transmitted from a plurality of neighboring macro base stations. The femto base station then determines a desired reference signal from the received one or more reference signals based on the scanning result. Finally, the femto base station configures its downlink radio signal transmission time based on the desired reference signal such that the femto base station is synchronized with the plurality of neighboring macro base stations.

摘要翻译： 提供了一种用于毫微微基站在蜂窝正交频分复用（OFDM）系统中的下行同步的方法。 毫微微基站首先扫描从多个相邻宏基站发送的一个或多个接收的参考信号。 毫微微基站然后基于扫描结果从所接收的一个或多个参考信号确定期望的参考信号。 最后，毫微微基站基于期望的参考信号配置其下行链路无线电信号传输时间，使得毫微微基站与多个相邻的宏基站同步。

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：US08737924B2

公开(公告)日：2014-05-27

申请号：US13136862

申请日：2011-08-11

申请人： I-Kang Fu ,  Willaim Plumb

发明人： I-Kang Fu ,  Willaim Plumb

IPC分类号： H04B15/00

CPC分类号： H04B15/00 ,  H04B1/1027 ,  H04B1/406 ,  H04B1/48 ,  H04B1/525 ,  H04B2001/485 ,  H04W4/80 ,  H04W52/244 ,  H04W72/0473 ,  H04W76/28 ,  H04W88/06

摘要： A method to trigger in-device coexistence (IDC) interference mitigation is provided. A wireless device comprises a first radio module and a co-located second radio module. The first radio module measures a received radio signal based on a plurality of sampling instances. A control entity obtains Tx/Rx activity of the second radio module and informs Tx/Rx timing information to the first radio module. The first radio module determines a measurement result based on the obtained timing information. The first radio module triggers an IDC interference mitigation mechanism if the measurement result satisfies a configurable condition. In one embodiment, the first radio module reports IDC interference information and traffic pattern information of the second radio module to a base station for network-assisted coexistence interference mitigation. The IDC triggering mechanism prevents unnecessary and arbitrary IDC request from the device and thus improves network efficiency.

摘要翻译： 提供了一种触发设备间共存（IDC）干扰减轻的方法。 无线设备包括第一无线电模块和共同定位的第二无线电模块。 第一无线电模块基于多个采样实例测量接收到的无线电信号。 控制实体获得第二无线电模块的Tx / Rx活动，并向第一无线电模块通知Tx / Rx定时信息。 第一无线电模块基于获得的定时信息来确定测量结果。 如果测量结果满足可配置条件，则第一个无线电模块触发IDC干扰减轻机制。 在一个实施例中，第一无线电模块向基站报告第二无线电模块的IDC干扰信息和业务模式信息以用于网络协同共存干扰减轻。 IDC触发机制防止来自设备的不必要和任意的IDC请求，从而提高网络效率。

公开(公告)号：US08498249B2

公开(公告)日：2013-07-30

申请号：US12387633

申请日：2009-05-04

申请人： I-Kang Fu

发明人： I-Kang Fu

IPC分类号： H04W4/00 ,  H04W40/00 ,  H04J3/16

CPC分类号： H04W72/0453 ,  H04L5/0053 ,  H04W36/0055 ,  H04W36/22 ,  H04W72/048 ,  H04W72/06

摘要： A unified two-stage network entry procedure is provided for OFDM multi-carrier wireless communications systems. During a first stage, a mobile station performs a common network entry procedure using a primary radio frequency carrier and then exchanges multi-carrier capability information with a base station. In one embodiment, the base station transmits a network entry allowance indicator to assist the mobile station in selecting the primary carrier. The network entry allowance indicator comprises information of preference of one or more available carriers. During a second stage, the mobile station enables multi-carrier transmission over multiple frequency channels if both the mobile station and the base station support multi-carrier capability. Before enabling multi-carrier transmission, the mobile station may optionally perform additional ranging by transmitting a ranging request for a secondary carrier. In one embodiment, the base station replies with a ranging response in response to the ranging request through the primary carrier.

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：US20120176923A1

公开(公告)日：2012-07-12

申请号：US13344589

申请日：2012-01-05

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

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

IPC分类号： H04W52/24 ,  H04W24/02

CPC分类号： H04W52/243 ,  H04W52/34 ,  H04W52/365 ,  H04W52/367 ,  H04W52/38 ,  H04W72/048

摘要： 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.

摘要翻译： 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。 当检测到共存或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：US20110243106A1

公开(公告)日：2011-10-06

申请号：US13065923

申请日：2011-04-01

申请人： Chia-Chun Hsu ,  Yih-Shen Chen ,  Yu-Hao Chang ,  I-Kang Fu

发明人： Chia-Chun Hsu ,  Yih-Shen Chen ,  Yu-Hao Chang ,  I-Kang Fu

IPC分类号： H04W72/04

CPC分类号： H04W24/10 ,  H04L5/0096 ,  H04L5/0098 ,  H04W52/365 ,  H04W72/1284 ,  H04W72/14

摘要： Methods to manage multiple component carriers (CCs) efficiently in a mobile network with carrier aggregation (CA) enabled are proposed. For CC activation/deactivation, a single LCID value is used to represent both activation and deactivation command. A single command with multiple instructions is provided to activate and/or deactivate multiple CCs. In addition, unnecessary re-activation or re-inactivation of a CC is prevented, and explicit feedback for activation/deactivation is considered. For scheduling mechanism, a novel buffer status reporting (BSR) procedure is provided, where only one BSR is calculated after preparing all the transport blocks (TB) within one transmission time interval (TTI). Novel power headroom reporting (PHR) format and trigger are also provided. For DL-UL linking, various linking types are created based on whether there is carrier indicator field (CIF) in DL grant or UL grant. The various linking types are used in different applications to improve scheduling flexibility and load balancing.

摘要翻译： 提出了在启用载波聚合（CA）的移动网络中有效管理多分量载波（CC）的方法。 对于CC激活/去激活，单个LCID值用于表示激活和停用命令。 提供具有多个指令的单个命令以激活和/或去激活多个CC。 另外，不必要地重新激活或重新激活CC，并且考虑了激活/去激活的显式反馈。 对于调度机制，提供了一种新的缓冲状态报告（BSR）过程，其中在一个传输时间间隔（TTI）中准备所有传输块（TB）之后仅计算一个BSR。 还提供了新的功率余量报告（PHR）格式和触发。 对于DL-UL链接，基于DL授权或UL授权中是否存在载波指示符字段（CIF）来创建各种链接类型。 各种链接类型用于不同的应用程序，以提高调度灵活性和负载平衡。