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1. 发明授权

US08131291B2 Fast active scanning wireless network apparatus and method 有权
标题翻译：快速主动扫描无线网络设备及方法
公开(公告)号：US08131291B2
公开(公告)日：2012-03-06
申请号：US10545466
申请日：2004-04-02
申请人： Moo Ryong Jeong , Fujio Watanabe , Toshiro Kawahara
发明人： Moo Ryong Jeong , Fujio Watanabe , Toshiro Kawahara
IPC分类号： H04Q7/20
CPC分类号： H04W48/14 , H04B7/022 , H04W48/16 , H04W48/20 , H04W74/08 , H04W84/12
摘要： In a fast active scanning wireless network apparatus and method for quick determination of available access points (20), information about a candidate set of available access points (20) is obtained, and a candidate access point is identified from the candidate set. A mobile station (10) then queries the candidate access point with a probe request that designates the candidate access point as a sole responder. The probe request prevents other access points from contending for the medium of communication between the mobile station and the designated sole responder access point by excluding the attempt by other access points (20) to transmit probe responses. The apparatus and method thus increases the probability of a fast and successful probe request from the mobile station and subsequent response from the designated access point (20). The designated access point may also respond with a probe response of high priority, preventing intervention of communication.
摘要翻译：在用于快速确定可用接入点（20）的快速主动扫描无线网络装置和方法中，获得关于可用接入点（20）的候选集合的信息，并且从候选集合识别候选接入点。然后，移动站（10）用指定候选接入点的探测请求作为唯一响应者来查询候选接入点。探测请求通过排除其他接入点（20）发送探测响应的尝试来防止其他接入点竞争移动台和指定的唯一响应者接入点之间的通信介质。因此，装置和方法增加了来自移动台的快速和成功的探测请求的概率以及从指定接入点（20）的后续响应。指定的接入点也可以以高优先级的探测响应进行响应，防止通信干扰。

2. 发明授权

US07417971B2 Method and apparatus for dormant mode support with paging 失效
标题翻译：用寻呼方式支持休眠模式的方法和装置
公开(公告)号：US07417971B2
公开(公告)日：2008-08-26
申请号：US11153032
申请日：2005-06-14
申请人： Moo Ryong Jeong , Fujio Watanabe , Toshiro Kawahara
发明人： Moo Ryong Jeong , Fujio Watanabe , Toshiro Kawahara
IPC分类号： H04Q7/00
CPC分类号： H04W68/00 , H04W36/08 , H04W52/0216 , H04W60/04 , Y02D70/142
摘要： A method and communication system for supporting dormant mode are described. In one embodiment, the communication system comprises a wireless station operable in a power savings mode and group of access points. Each group of access points comprises one or more access points with at least one group of access points having at least two access points. Ranges for the one or more access points in each of the groups define a paging area for each group, wherein one access point uses a paging channel for paging the wireless station when the wireless station is in the power savings mode and is in the paging area associated with the one access point. The wireless station performs a handoff procedure when the one access point is not in the same group of access points as the access point associated with the wireless station prior to the wireless station entering the power savings mode and does not perform a handoff procedure when the one access point is in the same group of access points as the access point associated with the wireless station prior to the wireless station entering the power savings mode.
摘要翻译：描述了用于支持休眠模式的方法和通信系统。在一个实施例中，通信系统包括可在功率节省模式和接入点组中操作的无线站。每组接入点包括一个或多个接入点，其中至少一组接入点具有至少两个接入点。每个组中的一个或多个接入点的范围定义每个组的寻呼区域，其中当无线站处于省电模式并且处于寻呼区域中时，一个接入点使用寻呼信道来寻呼无线站与一个接入点相关联。当无线站进入省电模式之前，当一个接入点不与与无线站相关联的接入点的接入点不在同一组接入点时，无线站执行切换过程，并且当一个接入点不执行切换过程时在无线站进入省电模式之前，接入点与与无线站相关联的接入点处于同一组接入点。

3. 发明申请

US20060092888A1 Proxy active scan for wireless networks 失效
标题翻译：代理主动扫描无线网络
公开(公告)号：US20060092888A1
公开(公告)日：2006-05-04
申请号：US10545464
申请日：2004-05-20
申请人： Moo Ryong Jeong , Fujio Watanabe , Toshiro Kawahara
发明人： Moo Ryong Jeong , Fujio Watanabe , Toshiro Kawahara
IPC分类号： H04Q7/24
CPC分类号： H04W48/16 , H04W36/08 , H04W48/14 , H04W84/12 , H04W92/20
摘要： Active scanning method in a wireless network for fast determining available access points (106, 806) using inter-AP (Access Point) communication is described. In the scanning method, a mobile station (102, 802) sends Probe Request for Proxy frame to the current AP (104, 804) serving the mobile station (102, 802). In response to the Probe Request for Proxy frame, the current AP (104, 804) send Proxy Probe Request packet to the appropriate APs (106, 806). In response to the Proxy Probe Request packet, the neighbor APs (106, 806) send Probe Response frame to the mobile station (102, 802) on its operating channel. Since the mobile station (102, 802) moves to the channel being examined after sending the Probe Request for Proxy frame, it receives the Probe Response frame if it is in the coverage area of the neighbor AP (106, 806). The content of Probe Response frame provides the mobile station (102, 802) with the information to be used in handoff decision and network join procedures. Thus, the mobile station (102, 802) neither has to move to the channel to be examined nor send Probe Request frame on that channel. This enables active scan to be initiated even when the neighbor AP (106, 806) is operating in PCF (Point Coordination Function) and the network is in CFP (Contention Free Period), during which unassociated mobile stations (including the scanning mobile station) cannot send packets.
摘要翻译：描述了使用AP（接入点）通信来快速确定可用接入点（106,806）的无线网络中的主动扫描方法。在扫描方法中，移动站（102,802）向服务于移动站（102,802）的当前AP（104,804）发送用于代理帧的探测请求。响应于针对代理帧的探测请求，当前AP（104,804）向适当的AP发送代理探测请求分组（106,806）。响应于代理探测请求分组，相邻AP（106,806）在其操作信道上向移动台（102,802）发送探测响应帧。由于移动站（102,802）在发送代理探测请求帧之后移动到被检查的信道，所以如果它在邻居AP（106,806）的覆盖区域内，它接收探测响应帧。探测响应帧的内容为移动台（102,802）提供要用于切换决策和网络连接过程的信息。因此，移动台（102,802）既不必移动到要检查的信道，也不在该信道上发送探测请求帧。即使当相邻AP（106,806）在PCF（点协调功能）中操作并且网络处于CFP（无争用周期））时，也可以启动主动扫描，在此期间，未关联的移动站（包括扫描移动站）无法发送数据包。

4. 发明授权

US08054798B2 Proxy active scan for wireless networks 失效
标题翻译：代理主动扫描无线网络
公开(公告)号：US08054798B2
公开(公告)日：2011-11-08
申请号：US10545464
申请日：2004-05-20
申请人： Moo Ryong Jeong , Fujio Watanabe , Toshiro Kawahara
发明人： Moo Ryong Jeong , Fujio Watanabe , Toshiro Kawahara
IPC分类号： H04W4/00
CPC分类号： H04W48/16 , H04W36/08 , H04W48/14 , H04W84/12 , H04W92/20
摘要： Active scanning method in a wireless network for fast determining available access points (106, 806) using inter-AP (Access Point) communication is described. In the scanning method, a mobile station (102, 802) sends Probe Request for Proxy frame to the current AP (104, 804) serving the mobile station (102, 802). In response to the Probe Request for Proxy frame, the current AP (104, 804) send Proxy Probe Request packet to the appropriate APs (106, 806). In response to the Proxy Probe Request packet, the neighbor APs (106, 806) send Probe Response frame to the mobile station (102, 802) on its operating channel. Since the mobile station (102, 802) moves to the channel being examined after sending the Probe Request for Proxy frame, it receives the Probe Response frame if it is in the coverage area of the neighbor AP (106, 806). The content of Probe Response frame provides the mobile station (102, 802) with the information to be used in handoff decision and network join procedures. Thus, the mobile station (102, 802) neither has to move to the channel to be examined nor send Probe Request frame on that channel. This enables active scan to be initiated even when the neighbor AP (106, 806) is operating in PCF (Point Coordination Function) and the network is in CFP (Contention Free Period), during which unassociated mobile stations (including the scanning mobile station) cannot send packets.
摘要翻译：描述了使用AP（接入点）通信来快速确定可用接入点（106,806）的无线网络中的主动扫描方法。在扫描方法中，移动站（102,802）向服务于移动站（102,802）的当前AP（104,804）发送用于代理帧的探测请求。响应于针对代理帧的探测请求，当前AP（104,804）向适当的AP（106,806）发送代理探测请求分组。响应于代理探测请求分组，相邻AP（106,806）在其操作信道上向移动台（102,802）发送探测响应帧。由于移动站（102,802）在发送代理探测请求帧之后移动到被检查的信道，所以如果它在邻居AP（106,806）的覆盖区域内，它接收探测响应帧。探测响应帧的内容为移动台（102,802）提供要用于切换决策和网络连接过程的信息。因此，移动台（102,802）既不必移动到要检查的信道，也不在该信道上发送探测请求帧。即使当相邻AP（106,806）在PCF（点协调功能）中操作并且网络处于CFP（无争用周期））时，也可以启动主动扫描，在此期间，未关联的移动站（包括扫描移动站）无法发送数据包。

5. 发明授权

US08345629B2 Method for ARQ-enabled pre-transmissions in multicast and broadcast services of relay networks utilizing the idle periods 有权
标题翻译：使用空闲周期的中继网络组播和广播业务中启用ARQ功能的预发送方法
公开(公告)号：US08345629B2
公开(公告)日：2013-01-01
申请号：US12211611
申请日：2008-09-16
申请人： Ismail Guvenc , Moo Ryong Jeong , Fujio Watanabe
发明人： Ismail Guvenc , Moo Ryong Jeong , Fujio Watanabe
IPC分类号： H04W4/00 , H04L12/26 , H04L1/00 , H04J1/16 , H04J3/14 , H04H20/71
CPC分类号： H04L1/02 , H04B7/155 , H04L1/1803 , H04L1/1848 , H04L2001/0093 , H04L2001/0097 , H04W56/00
摘要： A method and apparatus is disclosed herein for transmitting data in a network (e.g., a relay network). In one embodiment, the method comprises performing pre-transmission of a packet to hops to enable the base station and the plurality of hops to transmit the packet synchronously to one or more mobile stations in the wireless communication system; and performing one or more re-transmissions of the packet at a first set of one or more hops in the system during a delay due to pre-transmissions at a second set of one or more hops in the system.
摘要翻译：本文公开的用于在网络（例如，中继网络）中传输数据的方法和装置。在一个实施例中，所述方法包括执行分组的预传输以使所述基站和所述多个跳跃能够同步地传送所述分组到所述无线通信系统中的一个或多个移动台; 以及由于在系统中的一个或多个跳的第二组处的预发送而在延迟期间在系统中的一个或多个跳的第一组处执行所述分组的一个或多个重新发送。

6. 发明授权

US08442541B2 System and method for inter-cell interference avoidance in co-channel networks 有权
标题翻译：同频道网络中小区间干扰避免的系统和方法
公开(公告)号：US08442541B2
公开(公告)日：2013-05-14
申请号：US13073137
申请日：2011-03-28
申请人： Ismail Guvenc , Moo Ryong Jeong , Fujio Watanabe
发明人： Ismail Guvenc , Moo Ryong Jeong , Fujio Watanabe
IPC分类号： H04W24/08
CPC分类号： H04W72/1231 , H04L5/0032 , H04L5/0058
摘要： Systems and methods are provided for a distributed inter-cell interference avoidance (ICIA) technique for avoiding co-channel interference between femtocell networks and macrocell networks. At the macrocell, user equipments sense the downlink (DL) spectrum and detects whether there are any nearby interfering femtocells. If there is any interference, a macrocell base station appropriately re-schedules the DL resources and also uses a mapping function to re-schedule uplink (UL) resources based on the re-scheduled DL resources. At the femtocell, a femtocell base station senses the UL spectrum to detect for interference from nearby macrocell users. If there is interference, femtocell gives priority for use of the resources to the macrocell by releasing UL resources. Femtocell may also use the same mapping function to obtain the DL resources used by the macrocell and to re-schedule DL and UL resources of the femtocell to avoid using the DL and UL resources of the macrocell.
摘要翻译：提供了用于分散小区间干扰避免（ICIA）技术的系统和方法，用于避免毫微微小区网络与宏小区网络之间的同信道干扰。在宏小区，用户设备检测下行链路（DL）频谱，并检测是否有任何附近的干扰毫微微小区。如果存在干扰，则宏小区基站适当地重新调度DL资源，并且还使用映射函数来基于重新调度的DL资源重新调度上行链路（UL）资源。毫微微小区，毫微微小区基站感测到UL频谱以检测来自附近的宏小区用户的干扰。如果存在干扰，则通过释放UL资源，毫微微小区优先地向宏小区使用资源。毫微微小区也可以使用相同的映射函数来获得由宏小区使用的DL资源，并重新调度毫微微小区的DL和UL资源，以避免使用宏小区的DL和UL资源。

7. 发明申请

US20120003985A1 CO-CHANNEL INTERFERENCE REDUCTION IN FEMTOCELL NETWORKS 审中-公开
标题翻译： FEMTOCELL网络中的CO信道干扰减少
公开(公告)号：US20120003985A1
公开(公告)日：2012-01-05
申请号：US13171905
申请日：2011-06-29
申请人： Ismail Guvenc , Moo Ryong Jeong , Fujio Watanabe
发明人： Ismail Guvenc , Moo Ryong Jeong , Fujio Watanabe
IPC分类号： H04W72/04
CPC分类号： H04W56/0015 , H04W84/045 , Y02D70/1262
摘要： Co-channel macrocell users will inherently produce co-channel interference at a nearby femtocell base station. To reduce the peak co-channel interference power, the femtocell users adjust their symbol timing with regard to the macrocell users so as to maximize a spreading of the co-channel interference spectrum. In this fashion, the peak co-channel interference power is reduced, thereby leading to improved bit error rates for the femtocell users.
摘要翻译：共同信道宏小区用户将固有地在附近的毫微微小区基站上产生同信道干扰。为了减小峰值的同信道干扰功率，毫微微小区用户相对于宏小区用户调整其符号定时，以便使同信道干扰频谱的扩展最大化。以这种方式，峰值同信道干扰功率降低，从而导致针对毫微微小区用户的改进的比特错误率。

8. 发明申请

US20090291690A1 Femtocell Channel Assignment and Power Control for Improved Femtocell Coverage and Efficient Cell Search 有权
标题翻译：蜂窝小区信道分配和功率控制，用于改进的毫微微小区覆盖和有效的小区搜索
公开(公告)号：US20090291690A1
公开(公告)日：2009-11-26
申请号：US12463307
申请日：2009-05-08
申请人： Ismail Guvenc , Moo Ryong Jeong , Fujio Watanabe , Hiroshi Inamura
发明人： Ismail Guvenc , Moo Ryong Jeong , Fujio Watanabe , Hiroshi Inamura
IPC分类号： H04W72/00 , H04W36/00 , H04B7/00 , H04B15/00
CPC分类号： H04W16/10 , H04W16/30 , H04W52/243 , H04W52/244 , H04W52/343 , H04W52/40 , H04W72/02 , H04W72/0453 , H04W72/082 , H04W84/045
摘要： A method and a communication system including femtocells within a macrocell efficiently manage interference between the different femtocells, and between each femtocell and a macrocell. An efficient frequency assignment scheme for the femtocells minimizes interference between a femtocell and a macrocell and among different femtocells using a spectrum-sensing technique carried out by the femtocells. The frequency assignment scheme selects a suitable channel from a set of candidate channels and ensures that the femtocell has an acceptable coverage area even when it is close to the macrocell base station (BS). The frequency assignment scheme favors a co-channel implementation to take advantage of the hand-off and cell search characteristics of the co-channel implementation. In one embodiment, a joint power control and frequency band assignment technique is used, which partitions the coverage area of the macrocell into an inner region, a power control region, and an outer region. Depending on a femtocell's location, it is assigned a certain power level and a frequency band. Power control may be used within the power-control region while, in the other regions, a fixed transmission power may be used.
摘要翻译：包括宏小区内的毫微微小区的方法和通信系统有效地管理不同毫微微小区之间以及每个毫微微小区与宏小区之间的干扰。毫微微小区的有效的频率分配方案使用由毫微微小区执行的频谱感测技术来最小化毫微微小区和宏小区之间以及不同毫微微小区之间的干扰。频率分配方案从一组候选信道中选择一个合适的信道，并确保毫微微小区即使在接近宏小区基站（BS）时也具有可接受的覆盖区域。频率分配方案有利于共同信道实现来利用同频道实现的切换和小区搜索特性。在一个实施例中，使用联合功率控制和频带分配技术，其将宏小区的覆盖区域划分为内部区域，功率控制区域和外部区域。根据毫微微小区的位置，它被分配一定的功率电平和频带。功率控制可以在功率控制区域内使用，而在其它区域中可以使用固定的发射功率。

9. 发明授权

US08280387B2 Femtocell channel assignment and power control for improved femtocell coverage and efficient cell search 有权
标题翻译：毫微微小区信道分配和功率控制，用于改进的毫微微小区覆盖和有效的小区搜索
公开(公告)号：US08280387B2
公开(公告)日：2012-10-02
申请号：US12463307
申请日：2009-05-08
申请人： Ismail Guvenc , Moo Ryong Jeong , Fujio Watanabe , Hiroshi Inamura
发明人： Ismail Guvenc , Moo Ryong Jeong , Fujio Watanabe , Hiroshi Inamura
IPC分类号： H04W40/00 , H04B7/00 , H04B15/00
CPC分类号： H04W16/10 , H04W16/30 , H04W52/243 , H04W52/244 , H04W52/343 , H04W52/40 , H04W72/02 , H04W72/0453 , H04W72/082 , H04W84/045
摘要： A method and a communication system including femtocells within a macrocell efficiently manage interference between the different femtocells, and between each femtocell and a macrocell. An efficient frequency assignment scheme for the femtocells minimizes interference between a femtocell and a macrocell and among different femtocells using a spectrum-sensing technique carried out by the femtocells. The frequency assignment scheme selects a suitable channel from a set of candidate channels and ensures that the femtocell has an acceptable coverage area even when it is close to the macrocell base station (BS). The frequency assignment scheme favors a co-channel implementation to take advantage of the hand-off and cell search characteristics of the co-channel implementation. In one embodiment, a joint power control and frequency band assignment technique is used, which partitions the coverage area of the macrocell into an inner region, a power control region, and an outer region. Depending on a femtocell's location, it is assigned a certain power level and a frequency band. Power control may be used within the power-control region while, in the other regions, a fixed transmission power may be used.
摘要翻译：包括宏小区内的毫微微小区的方法和通信系统有效地管理不同毫微微小区之间以及每个毫微微小区与宏小区之间的干扰。毫微微小区的有效的频率分配方案使用由毫微微小区执行的频谱感测技术来最小化毫微微小区和宏小区之间以及不同毫微微小区之间的干扰。频率分配方案从一组候选信道中选择一个合适的信道，并确保毫微微小区即使在接近宏小区基站（BS）时也具有可接受的覆盖区域。频率分配方案有利于共同信道实现来利用同频道实现的切换和小区搜索特性。在一个实施例中，使用联合功率控制和频带分配技术，其将宏小区的覆盖区域划分为内部区域，功率控制区域和外部区域。根据毫微微小区的位置，它被分配一定的功率电平和频带。功率控制可以在功率控制区域内使用，而在其它区域中可以使用固定的发射功率。

10. 发明授权

US08155013B2 Synchronized multi-link transmission in an ARQ-enabled multi-hop wireless network 有权
标题翻译：在启用ARQ的多跳无线网络中同步多链路传输
公开(公告)号：US08155013B2
公开(公告)日：2012-04-10
申请号：US12258294
申请日：2008-10-24
申请人： Moo Ryong Jeong , Ismail Guvenc , Fujio Watanabe
发明人： Moo Ryong Jeong , Ismail Guvenc , Fujio Watanabe
IPC分类号： H04L1/18 , H04L12/28 , H04B7/005
CPC分类号： H04B7/2606 , H04L1/1877 , H04L1/1887 , H04L2001/0097 , H04W56/0005 , H04W84/20
摘要： A method and apparatus is disclosed herein for synchronized multi-link transmission in an ARQ-enabled multi-hop wireless network. In one embodiment, the method comprises performing pre-transmission of a packet to hops to enable a base station and the plurality of hops in the network to transmit the packet synchronously to one or more mobile stations in the wireless communication system; and performing one or more re-transmissions of the packet at a set of one or more hops forming a path in the network if time remaining before a synchronized transmission time for the path as a whole is greater than a threshold.
摘要翻译：本文公开了一种在启用ARQ的多跳无线网络中进行同步多链路传输的方法和装置。在一个实施例中，所述方法包括执行分组的预传输以使基站能够和所述网络中的所述多个跳跃同步地传送到所述无线通信系统中的一个或多个移动台; 以及如果在整个路径的同步传输时间之前剩余的时间大于阈值，则在一个或多个跳跃的组中执行一个或多个组播路径的重传。

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