公开(公告)号：US07289821B2

公开(公告)日：2007-10-30

申请号：US10685563

申请日：2003-10-16

申请人： Yong-suk Kim ,  Won-yong Yoon ,  Tae-jin Lee ,  Doo-seop Eom ,  Yang-ick Joo ,  Kyun-hyon Tcha ,  Jong-soo Oh

发明人： Yong-suk Kim ,  Won-yong Yoon ,  Tae-jin Lee ,  Doo-seop Eom ,  Yang-ick Joo ,  Kyun-hyon Tcha ,  Jong-soo Oh

IPC分类号： H04B7/00 ,  H04Q7/20

CPC分类号： H04W72/1247 ,  H04L12/423 ,  H04L47/283 ,  H04L49/90 ,  H04W28/14

摘要： A wireless communication system includes a queue status detection unit for detecting the amount of unit data being used for communication between a plurality of external devices, and deciding a class parameter T of one of the external devices; a counter for counting the number of giving-away times of the external device based on the giving-away of communication opportunities to communicate with the plurality of external devices, and deciding a delay parameter D of an external device; a communication priority decision unit for calculating priority values P of an external device by using a class parameter and a delay parameter, and determining an external device having a priority out of the plurality of external devices based on the priority values; and a communication initiation unit for initiating data communications with the determined external device having the priority. Accordingly, a communication method considering both throughput and fairness can be obtained.

摘要翻译： 无线通信系统包括队列状态检测单元，用于检测用于多个外部设备之间的通信的单元数据量，并且确定外部设备之一的等级参数T; 基于放弃与多个外部设备进行通信的通信机会，以及决定外部设备的延迟参数D，计数外部设备的放弃次数的计数器; 通信优先级决定单元，用于通过使用等级参数和延迟参数来计算外部设备的优先级值P，并且基于优先级值确定所述多个外部设备中具有优先级的外部设备; 以及通信发起单元，用于启动与所确定的具有优先级的外部设备的数据通信。 因此，可以获得考虑吞吐量和公平性的通信方法。

公开(公告)号：US07848752B2

公开(公告)日：2010-12-07

申请号：US10748168

申请日：2003-12-31

申请人： Yong-suk Kim ,  Won-yong Yoon ,  Kyun-hyon Tchah ,  Doo-seop Eom ,  Won-hee Lee ,  Tae-jin Lee ,  Yang-ick Joo

发明人： Yong-suk Kim ,  Won-yong Yoon ,  Kyun-hyon Tchah ,  Doo-seop Eom ,  Won-hee Lee ,  Tae-jin Lee ,  Yang-ick Joo

IPC分类号： H04W36/00

CPC分类号： H04W36/02 ,  H04W88/06

摘要： Disclosed is a handoff processing method capable of restarting fast communications. The handoff processing method stores in a handoff buffer Host Control Interface (HCI) data and transmission data upon communications in a state where an Access Point is interlinked with an external device. Further, the method forwards the HCI data and the transmission data buffered in the handoff buffer to a new Access Point (AP) transmitting a message indicating setup completion of a connection if the message indicating setup completion of a connection with the external device is transmitted from the new AP after a handoff occurs as the external device moves. Accordingly, throughputs are not lowered despite handoff occurrences in poor wireless channel environments, so that service quality can be enhanced.

摘要翻译： 公开了能够重启快速通信的切换处理方法。 在接入点与外部设备互连的状态下，切换处理方法在通信中存储切换缓冲器主机控制接口（HCI）数据和传输数据。 此外，如果发送指示与外部设备的连接的建立完成的消息被发送，则该方法将HCI数据和缓冲在切换缓冲器中的传输数据转发到新的接入点（AP），该接入点（AP）发送指示连接的建立完成的消息 随着外部设备移动，发生切换后的新AP。 因此，尽管在较差的无线信道环境中切换发生，吞吐量也不降低，从而可以提高服务质量。

公开(公告)号：US07369565B2

公开(公告)日：2008-05-06

申请号：US10620437

申请日：2003-07-17

申请人： Tae-jin Lee ,  Kyun-hyon Tchah ,  Ki-soo Chang ,  Oh-seok Kwon ,  Yang-ick Joo ,  Jong-soo Oh ,  Yong-suk Kim ,  Doo-seop Eom

发明人： Tae-jin Lee ,  Kyun-hyon Tchah ,  Ki-soo Chang ,  Oh-seok Kwon ,  Yang-ick Joo ,  Jong-soo Oh ,  Yong-suk Kim ,  Doo-seop Eom

IPC分类号： H04L12/28

CPC分类号： H04W28/14 ,  H04L47/10 ,  H04L47/14 ,  H04L47/15 ,  H04L47/30 ,  H04L47/70 ,  H04L47/762 ,  H04L47/805 ,  H04L47/824 ,  H04W84/18

摘要： A wireless communication system has a queue information search unit for searching a queue-status information provided in a packet unit, a communication priority decision unit for deciding communication priority of external devices based on the queue-status information, giving a higher priority to the external device having a greater number of packets in queues, a communication initiation unit for initiating a communication with the external devices according to the communication priority, a counter for counting the number of times that the communication is initiated for each of the external devices, and a comparator for comparing a counter value of a first external device that corresponds to a transmitted data with a counter value of a second external device that has a maximum counter value. Accordingly, when the wireless communication device transmits and receives data with respect to the plural wireless communication devices, both high throughput and high fairness can be guaranteed.

摘要翻译： 无线通信系统具有用于搜索分组单元中提供的队列状态信息的队列信息搜索单元，基于队列状态信息来决定外部设备的通信优先级的通信优先级决定单元，给予外部更高优先级 在队列中具有更多数量的分组的装置，根据通信优先级发起与外部设备的通信的通信发起单元，用于对每个外部设备发起通信次数的计数器，以及 比较器，用于将与发送的数据相对应的第一外部设备的计数器值与具有最大计数器值的第二外部设备的计数器值进行比较。 因此，当无线通信装置相对于多个无线通信装置发送和接收数据时，可以保证高吞吐量和高公平性。

公开(公告)号：US20060023670A1

公开(公告)日：2006-02-02

申请号：US11191075

申请日：2005-07-28

申请人： Yong-suk Kim ,  Yang-ick Joo ,  Jae-won Yoo ,  Kyun-hyon Cha

发明人： Yong-suk Kim ,  Yang-ick Joo ,  Jae-won Yoo ,  Kyun-hyon Cha

IPC分类号： H04B7/212

CPC分类号： H04W28/22 ,  H04W28/06 ,  H04W74/02 ,  H04W74/04 ,  H04W74/08 ,  H04W84/12 ,  Y02D70/144

摘要： A low-power transmitting apparatus and transmission method in a wireless personal area network (WPAN). A length of a fragment, a data rate, and a transmission power is selected to transmit a frame with minimum energy consumption in a contention period and a contention-free period. Thus, a quality of service (QoS) requirement for the transmission can be satisfied and the data frame can be transmitted with less energy consumption. Even when the channel status changes, a new transmission criterion suitable for the changed channel status is selected to minimize the consumption of the unnecessary energy. Furthermore, the life span of the network according to the energy consumption under a restricted environment can be lengthened.

摘要翻译： 一种无线个域网（WPAN）中的低功率发射装置和传输方法。 选择片段的长度，数据速率和发送功率，以便在竞争周期和无竞争周期中发送具有最小能量消耗的帧。 因此，可以满足传输的服务质量（QoS）要求，并且能够以较少的能量消耗传输数据帧。 即使当信道状态改变时，选择适合于改变的信道状态的新的传输标准来最小化不必要的能量的消耗。 此外，可以延长网络在有限环境下的能耗的使用寿命。

公开(公告)号：US07388849B2

公开(公告)日：2008-06-17

申请号：US11191075

申请日：2005-07-28

申请人： Yong-suk Kim ,  Yang-ick Joo ,  Jae-won Yoo ,  Kyun-hyon Cha

发明人： Yong-suk Kim ,  Yang-ick Joo ,  Jae-won Yoo ,  Kyun-hyon Cha

IPC分类号： H04Q7/00

CPC分类号： H04W28/22 ,  H04W28/06 ,  H04W74/02 ,  H04W74/04 ,  H04W74/08 ,  H04W84/12 ,  Y02D70/144

摘要： A low-power transmitting apparatus and transmission method in a wireless personal area network (WPAN). A length of a fragment, a data rate, and a transmission power is selected to transmit a frame with minimum energy consumption in a contention period and a contention-free period. Thus, a quality of service (QoS) requirement for the transmission can be satisfied and the data frame can be transmitted with less energy consumption. Even when the channel status changes, a new transmission criterion suitable for the changed channel status is selected to minimize the consumption of the unnecessary energy. Furthermore, the life span of the network according to the energy consumption under a restricted environment can be lengthened.

摘要翻译： 一种无线个域网（WPAN）中的低功率发射装置和传输方法。 选择片段的长度，数据速率和发送功率，以便在竞争周期和无竞争周期中发送具有最小能量消耗的帧。 因此，可以满足传输的服务质量（QoS）要求，并且能够以较少的能量消耗传输数据帧。 即使当信道状态改变时，选择适合于改变的信道状态的新的传输标准来最小化不必要的能量的消耗。 此外，可以延长网络在有限环境下的能耗的使用寿命。

公开(公告)号：US07768991B2

公开(公告)日：2010-08-03

申请号：US11116400

申请日：2005-04-28

申请人： Yong-suk Kim ,  Won-yong Yoon

发明人： Yong-suk Kim ,  Won-yong Yoon

IPC分类号： H04B7/212

CPC分类号： H04B7/2643 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0277 ,  H04W74/0875 ,  Y02D70/449

摘要： A method and system for determining a state of a first node in a wireless network consisting of a plurality of nodes. The first node determines one of at least two power sensitivity levels by considering at least one of an available power and a standby packet. The first node determines whether it remains in active state or inactive state by considering a power sensitivity level transmitted from at least one second node which corresponds to the first node and the determined power sensitivity level. Also, the corresponding node has an identical state to the first node, so that unnecessary power consumption can be prevented.

摘要翻译： 一种用于确定由多个节点组成的无线网络中的第一节点的状态的方法和系统。 第一节点通过考虑可用功率和备用分组中的至少一个来确定至少两个功率灵敏度水平中的一个。 第一节点通过考虑从对应于第一节点的至少一个第二节点和所确定的功率灵敏度级别发送的功率灵敏度级别来确定其是否保持在活动状态或非活动状态。 此外，相应的节点具有与第一节点相同的状态，从而可以防止不必要的功率消耗。

公开(公告)号：US20050243794A1

公开(公告)日：2005-11-03

申请号：US11116384

申请日：2005-04-28

申请人： Won-yong Yoon ,  Yong-suk Kim

发明人： Won-yong Yoon ,  Yong-suk Kim

IPC分类号： H04B7/26 ,  H04J3/00

CPC分类号： H04W74/04 ,  H04W8/20 ,  H04W28/26

摘要： A method for reserving non-colliding time slots by a node in a wireless network and a method for avoiding colliding time slots are provided. A transmitting node or a receiving node broadcasts information relating to its reserved time slot to neighbor nodes. A node in the wireless network recognizes information relating to time slots of neighbor nodes and of neighbor's neighbor nodes. Thus, when reserving a time slot for data transmission, time slot collision can be prevented by selecting the time slot based on the recognized information. If collision occurs in the reserved time slot and the node wants to cancel the reservation, the node informs a correspondent node of the reservation cancellation. Accordingly, the collision can be promptly resolved.

摘要翻译： 提供了一种用于通过无线网络中的节点保留非冲突时隙的方法和用于避免冲突时隙的方法。 发送节点或接收节点向相邻节点广播与其预留时隙有关的信息。 无线网络中的节点识别与邻居节点和邻居节点的时隙有关的信息。 因此，当保留用于数据传输的时隙时，可以通过基于所识别的信息选择时隙来防止时隙冲突。 如果在保留时隙中发生冲突，并且节点想要取消预留，则节点通知对端节点的预约取消。 因此，可以及时解决碰撞。

公开(公告)号：US20050243751A1

公开(公告)日：2005-11-03

申请号：US11116347

申请日：2005-04-28

申请人： Won-yong Yoon ,  Yong-suk Kim

发明人： Won-yong Yoon ,  Yong-suk Kim

IPC分类号： H04B7/26 ,  H04J3/24 ,  H04L12/28

CPC分类号： H04W8/26 ,  H04W28/26 ,  H04W74/04

摘要： A method for recognizing a receiving node by a transmitting node which transmits multicast data, and transmitting the multicast data to the receiving node in a wireless network including nodes that transmit and receive multicast data in at least one time slot. The transmitting node transmits a multicast solicit message indicating generation of the multicast data, and recognizes the receiving node by receiving from the receiving node a multicast join message containing information relating to the receiving node. The transmitting node selects at least one free time slot to reserve a time slot in which the generated multicast data is transmitted. The transmitting node transmits a multicast reservation request message containing information relating to the selected free time slot to the receiving node. The receiving node transmits a reservation response message to the transmitting node when the free time slot does not collide with reserved time slots of other nodes.

摘要翻译： 一种用于由发送多播数据的发送节点识别接收节点的方法，并且在包括在至少一个时隙中发送和接收多播数据的节点的无线网络中向所述接收节点发送所述多播数据。 发送节点发送指示生成多播数据的多播请求消息，并且通过从接收节点接收包含与接收节点有关的信息的多播加入消息来识别接收节点。 发送节点选择至少一个空闲时隙来保留生成的多播数据被发送的时隙。 发送节点向接收节点发送包含与所选择的空闲时隙有关的信息的多播预约请求消息。 当空闲时隙不与其他节点的保留时隙相冲突时，接收节点向发送节点发送预约响应消息。

公开(公告)号：US20050002362A1

公开(公告)日：2005-01-06

申请号：US10838516

申请日：2004-05-05

申请人： Yong-suk Kim ,  Won-yong Yoon

发明人： Yong-suk Kim ,  Won-yong Yoon

IPC分类号： H04L12/18 ,  H04B7/26 ,  H04J3/06 ,  H04L12/28 ,  H04W4/06 ,  H04W16/02 ,  H04W56/00 ,  H04W72/04 ,  H04W84/12 ,  H04B7/212

CPC分类号： H04N21/43637 ,  H04J3/0638 ,  H04N21/43615 ,  H04W56/0015 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446

摘要： Disclosed is a channel time allocation method in a high rate WPAN and a wireless system using the same. In the WPAN environment synchronized by a synchronization signal broadcasted from a coordinator, the channel time allocation method includes transmitting a channel time allocation request command corresponding to a property of an application data to be transmitted to the coordinator by any one of devices linked to the WPAN, and the coordinator allocating the channel time, inserting information of the allocated channel time to the synchronization signal, and broadcasting the synchronization signal to the devices. Accordingly, the channel time is allocated to fit for the property of the VBR stream data such as the MPEG-2 video so that the QoS of the VBR stream is provided. At the same time, reliability of the transmission of I frame is enhanced so that success rate of decoding the frame is increased.

摘要翻译： 公开了一种高速率WPAN中的信道时间分配方法及其使用的无线系统。 在通过从协调器广播的同步信号同步的WPAN环境中，信道时间分配方法包括：通过链接到WPAN的任何一个设备发送与要发送到协调器的应用数据的属性相对应的信道时间分配请求命令 并且协调器分配信道时间，将所分配的信道时间的信息插入到同步信号中，并将该同步信号广播到设备。 因此，分配信道时间以适应诸如MPEG-2视频的VBR流数据的属性，使得提供VBR流的QoS。 同时，提高了I帧传输的可靠性，从而增加了对帧解码的成功率。

公开(公告)号：US20050141451A1

公开(公告)日：2005-06-30

申请号：US11024828

申请日：2004-12-30

申请人： Won-yong Yoon ,  Yong-suk Kim

发明人： Won-yong Yoon ,  Yong-suk Kim

IPC分类号： H04L12/28 ,  H04J3/16 ,  H04L29/08 ,  H04W72/04 ,  H04W74/04 ,  H04W84/10 ,  H04W84/12 ,  H04W84/20 ,  H04Q7/00 ,  H04J3/06

CPC分类号： H04J3/1682 ,  H04W56/00 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446

摘要： A channel time allocation method in a wireless network which is synchronized by a synchronization signal broadcasted from a coordinator, includes a plurality of data devices linked to the wireless network each transmitting to the coordinator a command requesting a first channel time necessarily required and a second channel time selectively required according to a type of data to be transmitted, the coordinator allocating a channel time which includes a channel time allocation (CTA) period corresponding to each first channel time requested by the plurality of the devices, and a shared CTA period corresponding to each second channel time requested by the plurality of the devices and to be shared and used by the plurality of the devices, and broadcasting to the plurality of the devices the synchronization signal to which information of the allocated channel time is inserted.

摘要翻译： 在由协调器广播的同步信号同步的无线网络中的信道时间分配方法包括链接到无线网络的多个数据设备，每个数据设备向协调器发送请求需要的第一信道时间的命令和第二信道 根据要发送的数据的类型选择性地需要时间，协调器分配信道时间，其包括对应于由多个设备请求的每个第一信道时间的信道时间分配（CTA）周期，以及对应于 由所述多个设备请求的每个第二信道时间，并由所述多个设备共享和使用，并且向所述多个设备广播插入所分配的信道时间的信息的同步信号。