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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

US08340665B2 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：US08340665B2
公开(公告)日：2012-12-25
申请号：US12424217
申请日：2009-04-15
申请人： Moo Ryong Jeong , Fujio Wantanabe , Toshiro Kawahara
发明人： Moo Ryong Jeong , Fujio Wantanabe , Toshiro Kawahara
IPC分类号： H04L12/28
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, information about a candidate set of available access points is obtained, and a candidate access point is identified from the candidate set. A mobile station 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 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. 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的候选组的信息，并从候选集中识别候选接入点。移动台然后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的尝试以发送探测响应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的接入点的后续响应。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。

6. 发明申请

US20090207758A1 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：US20090207758A1
公开(公告)日：2009-08-20
申请号：US12424217
申请日：2009-04-15
申请人： Moo Ryong Jeong , Fujio Wantanabe , Toshiro Kawahara
发明人： Moo Ryong Jeong , Fujio Wantanabe , Toshiro Kawahara
IPC分类号： H04L12/28
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, information about a candidate set of available access points is obtained, and a candidate access point is identified from the candidate set. A mobile station 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 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. 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的候选组的信息，并从候选集中识别候选接入点。移动台然后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的尝试以发送探测响应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的接入点的后续响应。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。

7. 发明授权

US07551568B2 Power mode aware packet communication method and apparatus 有权
标题翻译：电源模式感知分组通信方法和装置
公开(公告)号：US07551568B2
公开(公告)日：2009-06-23
申请号：US11159852
申请日：2005-06-22
申请人： Moo Ryong Jeong , Toshiro Kawahara
发明人： Moo Ryong Jeong , Toshiro Kawahara
IPC分类号： H04L12/56 , H04W4/00 , H04W24/00
CPC分类号： H04L47/10 , H04L12/10 , H04L12/12 , H04L47/2441 , H04L47/32 , Y02D50/40
摘要： Packet communication method and system in which a packet destined for a terminal is provided service according to a service table indexed by packet classification and the terminal's power mode. The service table may specify for a connection a predetermined quality of service or discarding the packet. For a power mode having an alerting (i.e., paging) mechanism, the service may include alerting the terminal. The service table may also include a network edge point's own service requests and service requests from terminals, provisioning servers, and handoff sources. For a multicast or broadcast packet, as each terminal may be in a different power mode, the associated service in the service table may therefore be different for each terminal. In that case, the packet is provided with service so that any given terminal is provided with at least the quality of service specified in the service table. Thus, a multicast or broadcast packet is discarded when the service specified for all terminals is “discard.” Each terminal is alerted, however, if the associated service includes alerting the terminal. During handoff, a part of service table associated with the terminal can be transferred from the handoff source to the handoff destination.
摘要翻译：分组通信方法和系统，其中根据由分组分类索引的服务表和终端的功率模式，向目的地为终端的分组提供服务。服务表可以为连接指定预定的服务质量或丢弃分组。对于具有警报（即寻呼）机制的电力模式，该服务可以包括提醒终端。服务表还可以包括来自终端，配置服务器和切换源的网络边缘点自己的服务请求和服务请求。对于多播或广播分组，由于每个终端可能处于不同的功率模式，因此对于每个终端，服务表中的相关联的服务可能是不同的。在这种情况下，分组被提供服务，使得给定终端至少提供服务表中规定的服务质量。因此，当为所有终端指定的服务为“丢弃”时，组播或广播分组被丢弃。然而，每个终端被警告，如果相关联的服务包括警告终端。在切换期间，与终端相关联的服务表的一部分可以从切换源传送到切换目的地。

8. 再颁专利

USRE44435E1 Power mode aware packet communication method and apparatus 有权
公开(公告)号：USRE44435E1
公开(公告)日：2013-08-13
申请号：US12720430
申请日：2010-03-09
申请人： Moo Ryong Jeong , Toshiro Kawahara
发明人： Moo Ryong Jeong , Toshiro Kawahara
IPC分类号： H04L12/56 , H04W4/00 , H04W24/00
CPC分类号： H04L47/10 , H04L12/10 , H04L12/12 , H04L47/2441 , H04L47/32 , Y02D50/40
摘要： Packet communication method and system in which a packet destined for a terminal is provided service according to a service table indexed by packet classification and the terminal's power mode. The service table may specify for a connection a predetermined quality of service or discarding the packet. For a power mode having an alerting (i.e., paging) mechanism, the service may include alerting the terminal. The service table may also include a network edge point's own service requests and service requests from terminals, provisioning servers, and handoff sources. For a multicast or broadcast packet, as each terminal may be in a different power mode, the associated service in the service table may therefore be different for each terminal. In that case, the packet is provided with service so that any given terminal is provided with at least the quality of service specified in the service table. Thus, a multicast or broadcast packet is discarded when the service specified for all terminals is “discard.” Each terminal is alerted, however, if the associated service includes alerting the terminal. During handoff, a part of service table associated with the terminal can be transferred from the handoff source to the handoff destination.

9. 发明申请

US20090175454A1 WIRELESS NETWORK HANDOFF KEY 审中-公开
标题翻译：无线网络切换键
公开(公告)号：US20090175454A1
公开(公告)日：2009-07-09
申请号：US12402343
申请日：2009-03-11
申请人： Fujio Watanabe , Craig B. Gentry , Gang Wu , Toshiro Kawahara
发明人： Fujio Watanabe , Craig B. Gentry , Gang Wu , Toshiro Kawahara
IPC分类号： H04L9/00
CPC分类号： H04L9/0836 , H04L63/0428 , H04L63/061 , H04L2209/80 , H04W12/0013 , H04W12/04 , H04W36/0011 , H04W80/02
摘要： The present invention provides a method and system for handoff in a wireless communication network. In one embodiment, a common handoff encryption key is generated by an authentication server and transmitted to a first access point and a second access point. The first access point transmits the handoff encryption key to a wireless terminal. The wireless terminal encrypts output data with the handoff encryption key. When the wireless terminal is associated with the second access point, the second access point decrypts data from the wireless terminal with the handoff encryption key. In a second embodiment, a handoff WEP key generation secret parameter is provided to a first and a second access point. Both access points generate a handoff WEP key as a function of the handoff WEP key generation secret parameter and an address of a wireless terminal. The first access point transmits the handoff WEP key to the wireless terminal. The second access point communicates data packets encrypted with the handoff WEP key with the wireless terminal.
摘要翻译：本发明提供了一种用于无线通信网络中切换的方法和系统。在一个实施例中，公共切换加密密钥由认证服务器生成并被发送到第一接入点和第二接入点。第一接入点将切换加密密钥发送到无线终端。无线终端用切换加密密钥加密输出数据。当无线终端与第二接入点相关联时，第二接入点利用切换加密密钥从无线终端解密数据。在第二实施例中，将切换WEP密钥生成秘密参数提供给第一和第二接入点。两个接入点根据切换WEP密钥生成秘密参数和无线终端的地址生成切换WEP密钥。第一接入点将切换WEP密钥发送到无线终端。第二接入点将与切换WEP密钥一起加密的数据分组与无线终端进行通信。

10. 发明申请

US20060198325A1 Method for supporting scalable and reliable multicast in tdma/tdd systems using feedback suppression techniques 失效
标题翻译：使用反馈抑制技术在tdma / tdd系统中支持可扩展和可靠的多播的方法
公开(公告)号：US20060198325A1
公开(公告)日：2006-09-07
申请号：US10552672
申请日：2004-10-14
申请人： Xia Gao , Fujio Watanabe , Gang Wu , Ravi Jain , Toshiro Kawahara
发明人： Xia Gao , Fujio Watanabe , Gang Wu , Ravi Jain , Toshiro Kawahara
IPC分类号： H04J3/16 , H04L12/16 , H04Q11/00 , H04J3/14 , H04J1/16 , H04J3/22 , H04L1/00 , H03M13/00
CPC分类号： H04L12/1868 , H04L1/0057 , H04L1/08 , H04L1/1621 , H04L1/1685 , H04L1/1819 , H04L5/1469 , H04L12/1863 , H04L12/189 , H04W8/26 , H04W74/04 , H04W76/40 , H04W84/00 , H04W84/04 , H04W84/12
摘要： A method supports scalable and reliable multicast in a wireless network with a large bandwidth-delay product. In this method, acknowledgement packets from different receivers experiencing the same number of data packets lost are assigned the same time slots. This method can be combined with other loss recovery techniques, such as forward error correction (FEC) recovery, proactive protection, feedback suppression and collision detection. Scalability is achieved as bandwidth usage relates only to the number of packets transmitted, rather than the number of receivers.
摘要翻译：一种方法支持具有大带宽延迟产品的无线网络中的可扩展和可靠的组播。在这种方法中，来自经历相同数量数据包丢失的不同接收机的确认分组被分配相同的时隙。该方法可以与其他丢失恢复技术相结合，如前向纠错（FEC）恢复，主动保护，反馈抑制和冲突检测。实现可扩展性，因为带宽使用仅与发送的分组的数量相关，而不是接收机的数量。

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