公开(公告)号：US20100202354A1

公开(公告)日：2010-08-12

申请号：US12697110

申请日：2010-01-29

Applicant: Jin-Meng Ho

Inventor： Jin-Meng Ho

IPC: H04W40/00

CPC classification number: H04L69/22 ,  G06Q10/06 ,  G06Q50/32 ,  H04B13/005 ,  H04L9/0861 ,  H04W72/0446

Abstract: A system and method for providing a variety of medium access and power management methods are disclosed. A defined frame structure allows a hub and a node to use said methods for secured or unsecured communications with each other. Contended access is available during a random access phase. The node uses an alternate doubling of a backoff counter to reduce interference and resolve collisions with other nodes attempting to communicate with the hub in the random access phase. Non-contended access is also available, and the hub may schedule reoccurring or one-time allocation intervals for the node. The hub and the node may also establish polled and posted allocation intervals on an as needed basis. The node manages power usage by being at active mode at times during the beacon period when the node is expected to transmit or receive frames.

Abstract translation: 公开了一种用于提供各种介质访问和电源管理方法的系统和方法。 定义的帧结构允许集线器和节点使用所述方法来实现彼此的安全或不安全的通信。 在随机访问阶段可以访问受访问。 该节点使用退避计数器的替代加倍来减少干扰并且解决与在随机访问阶段尝试与集线器通信的其他节点的冲突。 还可以使用非竞争的访问，并且集线器可以为该节点安排重发或一次分配间隔。 集线器和节点还可以根据需要建立轮询和发布的分配间隔。 该节点通过在节点期望发送或接收帧的信标周期期间的时间处于活动模式来管理功率使用。

公开(公告)号：US20100199094A1

公开(公告)日：2010-08-05

申请号：US12697080

申请日：2010-01-29

Applicant: Jin-Meng Ho

Inventor： Jin-Meng Ho

IPC: H04L9/00

CPC classification number: H04L63/0428 ,  H04L9/0844 ,  H04L9/0869 ,  H04L9/3242 ,  H04L63/061

Abstract: A system and method for establishing a pairwise temporal key (PTK) between two devices based on a shared master key and using a single message authentication codes (MAC) algorithm is disclosed. The devices use the shared master key to independently compute four MACs representing the desired PTK, a KCK, and a first and a second KMAC. The Responder sends its first KMAC to the Initiator, which retains the computed PTK only if it verifies that the received first KMAC equals its computed first KMAC and hence that the Responder indeed possesses the purportedly shared master key. The Initiator sends a third message including the second KMAC to the Responder. The Responder retains the computed PTK only if it has verified that the received second KMAC equals its computed second KMAC and hence that the Initiator indeed possesses the purportedly shared master key.

Abstract translation: 公开了一种基于共享主密钥和使用单个消息认证码（MAC）算法在两个设备之间建立成对时间密钥（PTK）的系统和方法。 这些设备使用共享主密钥来独立地计算表示期望的PTK，KCK和第一和第二KMAC的四个MAC。 响应者将其第一个KMAC发送到启动器，该启动器仅在验证接收到的第一个KMAC等于其计算的第一个KMAC时保留计算的PTK，并且因此响应者确实拥有所谓的共享主密钥。 发起方将第二个消息包括第二个KMAC发送给响应者。 响应者只有在已经验证接收到的第二个KMAC等于其计算的第二个KMAC的情况下才保留计算的PTK，因此启动器确实拥有所谓的共享主密钥。

公开(公告)号：US07668243B2

公开(公告)日：2010-02-23

申请号：US10847804

申请日：2004-05-18

Applicant: Jin-Meng Ho ,  Richard T. Baker ,  Allison Winifred Hicks

Inventor： Jin-Meng Ho ,  Richard T. Baker ,  Allison Winifred Hicks

IPC: H04N7/12 ,  H04W4/00

CPC classification number: H04N21/8547 ,  H04N21/4305 ,  H04W28/14

Abstract: System and method for synchronizing clocks and maintaining packet timing relationships in a wireless communications system. A preferred embodiment further comprises periodically synchronizing local clocks at a transmitter and a receiver to a clock reference, adding a timestamp to each application packet at a transmitter of a wireless network, setting the timestamp to a value of a local time at the transmitter plus a link delay, buffering a received packet at a receiver, and releasing the buffered packet to an application level when a value of a local time at the receiver equals the timestamp value in the packet. This can help to ensure that the timing relationships between data packets present at a transmitter is maintained at a receiver, regardless of transport delays (waiting, transmission and processing) incurred by the data packets.

Abstract translation: 用于在无线通信系统中同步时钟并维持分组定时关系的系统和方法。 优选实施例还包括将发射机和接收机处的本地时钟周期性地同步到时钟参考，将时间戳添加到无线网络的发射机处的每个应用分组，将时间戳设置为发射机加上本地时间的值 链路延迟，在接收器处缓冲接收到的分组，并且当接收器处的本地时间的值等于分组中的时间戳值时，将缓冲的分组释放到应用级。 这有助于确保在发送器处存在的数据分组之间的时序关系在接收机处被维持，而不管由数据分组引起的传输延迟（等待，传输和处理）。

公开(公告)号：US07660419B1

公开(公告)日：2010-02-09

申请号：US11202886

申请日：2005-08-12

Applicant: Jin-Meng Ho

Inventor： Jin-Meng Ho

IPC: H04K1/00

CPC classification number: H04L9/0844 ,  H04L2209/80 ,  H04W12/04 ,  H04W12/06

Abstract: The present application describes a method and system for discovering and authenticating communication devices within a wireless network. According to an embodiment, communication devices exchange public keys using multiple messages each including at least a portion of the public key of the sending device. The devices authenticate the receipt of the public key and establish a shared master key. The shared master key is used to further derive a session key for securing the application data between the communicating devices for a current session.

Abstract translation: 本申请描述了用于发现和认证无线网络内的通信设备的方法和系统。 根据实施例，通信设备使用多个消息来交换公共密钥，每个消息包括发送设备的公开密钥的至少一部分。 设备对公钥的接收进行认证，并建立共享主密钥。 共享主密钥用于进一步导出用于在当前会话的通信设备之间保护应用数据的会话密钥。

公开(公告)号：US07630351B1

公开(公告)日：2009-12-08

申请号：US11239572

申请日：2005-09-29

Applicant: Jin-Meng Ho ,  Wei Lin

Inventor： Jin-Meng Ho ,  Wei Lin

IPC: H04W4/00

CPC classification number: H04W28/26 ,  H04W28/24 ,  H04W72/12 ,  H04W76/12 ,  H04W80/00

Abstract: A method and system is disclosed for setting up, modifying and tearing down an up-stream communication session in a basic service set (BSS) in a wireless local area network (WLAN), so that the communication session has a defined Quality of Service (QoS). Regarding setting up an up-stream communication session, a first Path message and a first Resv message (Path/Resv message) of a RSVP protocol are detected at a designated subnet bandwidth manager (DSBM) in a station having a point coordinator (PC). The first Resv message originates from a RSVP agent of a host outside the BSS, and is a request for setting up an up-stream session between a source non-PC station in the BSS and the PC station. A QoS parameter set and a classifier from the first Path/Resv message for the session are extracted at the DSBM. The DSBM determines whether to admit the up-sam session to the network based on the QoS parameter set defining the session and a channel status report on a medium access control (MAC) sublayer of the BSS. When the up-stream session is admitted, a QoS management entity (QME) of the PC station sets up a virtual up-stream (VUS) between the source non-PC station and the PC station for transporting the up-stream session traffic. The DSBM is part of the QME in the PC station.

Abstract translation: 公开了一种用于在无线局域网（WLAN）中的基本服务集（BSS）中建立，修改和拆除上游通信会话的方法和系统，使得通信会话具有定义的服务质量（ QoS）。 关于设置上行通信会话，在具有点协调器（PC）的站中的指定子网带宽管理器（DSBM）处检测到RSVP协议的第一路径消息和第一Resv消息（Path / Resv消息） 。 第一个Resv消息来自BSS之外的主机的RSVP代理，并且是在BSS中的源非PC站和PC站之间建立上游会话的请求。 DSBM提取了来自会话的第一个Path / Resv消息的QoS参数集和分类器。 DSBM根据定义会话的QoS参数集以及BSS的介质访问控制（MAC）子层上的信道状态报告，确定是否允许上传会话到网络。 当上游会话被允许时，PC站的QoS管理实体（QME）在源非PC站和PC站之间建立虚拟上行流（VUS），用于传送上游会话流量。 DSBM是PC站中的QME的一部分。

公开(公告)号：US07508781B2

公开(公告)日：2009-03-24

申请号：US10396921

申请日：2003-03-25

Applicant: Yonghe Liu ,  Jin-Meng Ho ,  Matthew B. Shoemake

Inventor： Yonghe Liu ,  Jin-Meng Ho ,  Matthew B. Shoemake

IPC: G08C17/00

CPC classification number: H04W52/0216 ,  H04W72/12 ,  H04W74/06 ,  H04W84/12 ,  H04W88/08 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22

Abstract: A new protocol system and method is described that utilizes a Schedule Information Vector (SIV) protocol for saving power in wireless local area networks. The protocol includes an access point, one or more stations, and an SIV frame including an association ID for identifying one of the stations and a scheduled wake-up time for the identified station. The access point originates and transmits the SIV frame protocol of the scheduled wake-up time to the stations. The SIV frame protocol of the wireless network is further operable to dynamically adjust the scheduled wake-up times of the stations, a sequence of the wake-up times, a periodic wake-up time, a plurality of wake-up times, and a duration of the wake-up times of the stations. These adjustments may be made based on network traffic, traffic buffering times, data priorities, data length, and data rates.

Abstract translation: 描述了一种新的协议系统和方法，其利用计划信息向量（SIV）协议来节省无线局域网中的功率。 该协议包括接入点，一个或多个站，以及SIV帧，其包括用于识别站中的一个的关联ID以及所识别的站的预定的唤醒时间。 接入点将预定的唤醒时间的SIV帧协议发送到站。 无线网络的SIV帧协议还可用于动态地调整站的调度的唤醒时间，唤醒时间的顺序，周期性的唤醒时间，多个唤醒时间和 车站唤醒时间的持续时间。 这些调整可以基于网络流量，流量缓冲时间，数据优先级，数据长度和数据速率进行。

公开(公告)号：US07492736B2

公开(公告)日：2009-02-17

申请号：US11263617

申请日：2005-10-31

Applicant: Jin-Meng Ho

Inventor： Jin-Meng Ho

IPC: H04Q7/00

CPC classification number: H04W48/08 ,  H04B1/7163 ,  H04L5/023 ,  H04W28/06 ,  H04W72/00 ,  H04W74/00

Abstract: The present application describes a system and method of managing beacon periods in a distributed wireless network. According to an embodiment, devices move their beacons to earliest available beacon slots in the beacon period and contract their beacon periods to increase data periods for higher data throughput of the wireless network. According to another embodiment, devices detect and resolve their beacon collision to maintain the integrity of their beacons for effective exchange of medium access and control messages as needed in a distributed wireless network.

Abstract translation: 本申请描述了在分布式无线网络中管理信标周期的系统和方法。 根据实施例，设备将它们的信标移动到信标周期中的最早可用的信标时隙，并收缩其信标周期以增加用于无线网络的较高数据吞吐量的数据周期。 根据另一个实施例，设备检测和解决其信标冲突以保持其信标的完整性，以便在分布式无线网络中根据需要有效地交换介质访问和控制消息。

公开(公告)号：US07349433B2

公开(公告)日：2008-03-25

申请号：US10118803

申请日：2002-04-09

Applicant: Jin-Meng Ho

Inventor： Jin-Meng Ho

IPC: H04J3/16

CPC classification number: H04W28/24 ,  H04L47/10 ,  H04L47/14 ,  H04L47/15 ,  H04L47/2433 ,  H04L47/70 ,  H04L47/805 ,  H04L47/808 ,  H04L47/824

Abstract: The creation, modification, and deletion of a traffic stream 224 with parameterized QoS expectations between two communicating stations 205 and 207, when there is no built-in mechanism for support of parameterized QoS expectations, requires signaling of traffic characteristics and QoS parameters between the management entities such as SME 212 and MLME 214 and between the MAC entities of the communicating stations 205 and 207. Either the station 205 and 207 or a hybrid coordinator may initiate the signaling. The end result of the signaling is the creation of a new traffic stream that is used to associate user traffic to a particular set of traffic characteristics and QoS parameters, which are then used in the scheduling of the transmission of the user traffic. Another end result of the signaling is the modification of an existing traffic stream in terms of its traffic characteristics and QoS parameters.

Abstract translation: 当没有用于支持参数化QoS期望的内置机制时，在两个通信站205和207之间具有参数化的QoS预期的业务流224的创建，修改和删除需要在管理之间发送业务特性和QoS参数 实体，例如SME 212和MLME 214，以及通信站205和207的MAC实体之间。站205和207或混合协调器可以发起信令。 信令的最终结果是创建新的业务流，用于将用户业务与特定的一组业务特性和QoS参数相关联，然后将其用于调度用户业务的传输。 信令的另一个最终结果是在其流量特性和QoS参数方面对现有业务流的修改。

公开(公告)号：US07292598B2

公开(公告)日：2007-11-06

申请号：US09966635

申请日：2001-09-28

Applicant: Jin-Meng Ho ,  Donald P. Shaver

Inventor： Jin-Meng Ho ,  Donald P. Shaver

IPC: H04L12/43

CPC classification number: H04W74/02 ,  H04L12/4035 ,  H04L41/26 ,  H04L41/5009 ,  H04W74/085

Abstract: Contention for a shared communications medium in a communications network involves a fine balancing act between wasting much network bandwidth sitting idle or recovering from collisions and transmitting data. Contention adaptation concepts are introduced for access to a shared medium, and adaptive algorithms for contention access using probabilities and backoffs are presented.

Abstract translation: 在通信网络中的共享通信介质的竞争涉及在占用空闲或从冲突恢复和传输数据的大量网络带宽之间的精细平衡动作。 引入争用适应概念来访问共享介质，并且提出了使用概率和退避的用于争用访问的自适应算法。

公开(公告)号：US07209467B2

公开(公告)日：2007-04-24

申请号：US10304973

申请日：2002-11-26

Applicant: Yonghe Liu ,  Matthew B. Shoemake ,  Jin-Meng Ho

Inventor： Yonghe Liu ,  Matthew B. Shoemake ,  Jin-Meng Ho

IPC: H04Q7/24 ,  H04J3/00 ,  H04B7/212 ,  H04L12/413

CPC classification number: H04W74/085 ,  H04W74/006 ,  H04W74/0833 ,  H04W84/12

Abstract: A wireless network, including a plurality of network elements such as a wireless access point (9), and computer stations (2, 4, 6), is disclosed. The wireless network operates so that each network element (2, 4, 6, 9) waits for a pseudo-randomly selected duration, after the end of a frame on the channel, before initiating transmission. One of the network elements, such as the wireless access point (9), measures the performance of the network over a measurement period (T), and adjusts a minimum value of the upper limit of the range from which the random duration is selected, according to the performance of the network over the measurement period. The times measured may be the successful transmission time (Ts), which is maximized in adjusting the minimum value, or the idle and collision times (T1, Tc), which are equated in the optimization of the minimum value.

Abstract translation: 公开了一种包括诸如无线接入点（9）和计算机站（2,4,6）之类的多个网络元件的无线网络。 无线网络操作，使得每个网络元件（2,4,6,9）在开始传输之前在信道上的帧结束之后等待伪随机选择的持续时间。 诸如无线接入点（9）的网络元件之一在测量周期（T）测量网络的性能，并且调整选择随机持续时间的范围的上限的最小值， 根据网络在测量期间的表现。 所测量的时间可以是在调整最小值时最大化的传输时间（T SUB），或空闲和冲突时间（T 1 SUB，T _{c ），它们在最小值的优化中相等。}