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1. 发明申请

WO2003043265A1 APPARATUS AND METHOD FOR PROVIDING IEEE 802.11e HYBRID COORDINATOR RECOVERY AND BACKOFF RULES 审中-公开
标题翻译：提供IEEE 802.11e混合协调器恢复和备份规则的装置和方法
公开(公告)号：WO2003043265A1
公开(公告)日：2003-05-22
申请号：PCT/IB2002/004752
申请日：2002-11-12
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V.
发明人： CHOI, Sunghyun , DEL PRADO, Javier
IPC分类号： H04L12/28
CPC分类号： H04W74/0841
摘要： An apparatus and method is disclosed for providing recovery and backoff rules for a hybrid coordinator of an IEEE 802.11e Quality of Service (QoS) wireless station. The invention comprises a wireless local area network that is capable of using the recovery and backoff rules of the present invention in the Medium Access Control (MAC) layer of QoS hybrid coordinators. The HC recovery and backoff rules of the present invention minimize collisions especially when hybrid coordinators from an overlapping basic service set are present.
摘要翻译：公开了一种用于为IEEE 802.11e服务质量（QoS）无线站的混合协调器提供恢复和退避规则的装置和方法。本发明包括能够在QoS混合协调器的媒体接入控制（MAC）层中使用本发明的恢复和退避规则的无线局域网。本发明的HC恢复和回退规则尤其是当来自重叠的基本服务组的混合协调器存在时，使冲突最小化。

2. 发明申请

WO2003005643A1 DYNAMIC FREQUENCY SELECTION WITH RECOVERY FOR A BASIC SERVICE SET WIRELESS NETWORK 审中-公开
标题翻译：基本服务设置无线网络恢复动态频率选择
公开(公告)号：WO2003005643A1
公开(公告)日：2003-01-16
申请号：PCT/IB2002/002582
申请日：2002-06-28
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V.
发明人： SOOMRO, Amjad , CHOI, Sunghyun
IPC分类号： H04L12/28
CPC分类号： H04W72/02 , H04W48/08 , H04W48/16 , H04W72/08 , H04W84/12
摘要： Dynamic frequency selection for an IEEE 802.11 basic service set network (100, 101, 102, 103) is enabled by a dynamic frequency selection (DFS) element (200) within beacon and probe response frames defining a DFS owner, a DFS interval specifying the time until channel switch in beacon intervals, a DFS count specifying a time in beacon intervals until the DFS owner initiates selection of the next channel frequency from the supported channel set, and a DFS recovery interval specifying a time after the end of the DFS interval when recovery procedures are initiated if no channel switch information was received during that DFS interval. Channel switch information is presented in beacons following the end of the channel selection process, and within beacons during the DFS recovery interval.
摘要翻译：在IEEE 802.11基本服务集网络（100,101,102,103）中的动态频率选择由定义DFS所有者的信标和探测响应帧内的动态频率选择（DFS）元素（200）启用，DFS间隔指定在信标间隔中的信道切换之前的时间，指定在信标间隔中的时间的DFS计数，直到DFS所有者从所支持的信道集合开始选择下一个信道频率，以及指定在DFS间隔结束之后的时间的DFS恢复间隔，如果在该DFS间隔期间没有收到频道切换信息，则启动恢复过程。信道切换信息在信道选择过程结束后的信标中显示，并且在DFS恢复间隔期间的信标中。

3. 发明申请

WO2003075488A2 INTERNAL SIGNALING METHOD TO SUPPORT CLOCK SYNCHRONIZATION OF NODES CONNECTED VIA A WIRELESS LOCAL AREA NETWORK 审中-公开
标题翻译：支持通过无线局域网连接的节点的时钟同步的内部信号方法
公开(公告)号：WO2003075488A2
公开(公告)日：2003-09-12
申请号：PCT/IB2003/000838
申请日：2003-03-07
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V.
发明人： DEL PRADO PAVON, Javier , CHOI, Sunghyun
IPC分类号： H04B7/26
CPC分类号： H04J3/0694
摘要： This invention discloses a set of internal signaling (i.e., management primitives) to support a clock-synchronization protocol for wirelessly synchronizing clock registers of wired or wireless nodes via a wireless local area network (i.e., 802.11 network). The clock synchronization is performed between two higher-layer protocol entities residing within two different wireless stations (STAs).
摘要翻译：本发明公开了一组内部信号（即，管理原语），以支持用于通过无线局域网（即802.11网络）无线同步有线或无线节点的时钟寄存器的时钟同步协议。在驻留在两个不同无线站（STA）中的两个高层协议实体之间执行时钟同步。

4. 发明申请

WO2003061204A1 ENHANCEMENT OF DATA FRAME RE-TRANSMISSION BY USING AN ALTERNATIVE MODULATION SCHEME IN A WLAN 审中-公开
标题翻译：通过在WLAN中使用替代调制方案来增强数据帧的再传输
公开(公告)号：WO2003061204A1
公开(公告)日：2003-07-24
申请号：PCT/IB2003/000099
申请日：2003-01-14
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V.
发明人： CHOI, Sunghyun
IPC分类号： H04L12/28
CPC分类号： H04L1/1867 , H03M13/35 , H04L1/0003 , H04L1/0025 , H04L1/1812 , H04W84/12 , Y02D50/10
摘要： The present invention relates to a method and system for enhancing the performance of the Forward-Error-Correction (FEC) scheme in a wireless local area network (WLAN). When a transmission error occurs more than a predetermined number of times using a first modulation scheme, the data transmission rate of the first modulation scheme is compared to a predetermined data rate and, if greater, the retransmission of error data is performed using a second modulation scheme.
摘要翻译：本发明涉及一种在无线局域网（WLAN）中增强前向纠错（FEC）方案的性能的方法和系统。当使用第一调制方案发生多于预定次数的传输错误时，将第一调制方案的数据传输速率与预定数据速率进行比较，如果更大，则使用第二调制方案。

5. 发明申请

WO2003058887A1 CO-EXISTENCE OF OFDM AND DSSS/CCK STATIONS IN A WLAN 审中-公开
标题翻译：无线局域网中OFDM和DSSS / CCK站的共存
公开(公告)号：WO2003058887A1
公开(公告)日：2003-07-17
申请号：PCT/IB2003/000309
申请日：2003-01-09
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V.
发明人： HIRSCH, Olaf , GARD, Atul, Kumar , CHOI, Sunghyun , DE BART, Abraham, Jan , GRUIJTERS, Paul
IPC分类号： H04L12/28
CPC分类号： H04L27/2602 , H04L5/1453 , H04L27/0008 , H04W16/14 , H04W74/02 , H04W84/12 , H04W88/08 , H04W88/10
摘要： A local area network is provided where OFDM stations (STA4-STA6, A8) and DSSS/CCK only stations (STA1-STA3) coexist. Before transmitting, an OFDM station learns of the modulation capability of an intended receiving station is only capable of DSSS/CCK modulation then the OFDM station transmits DSSS/CCK modulated data. If the receiving station is capable of OFDM modulation, then the OFDM station transmits OFDM modulated data thereby enabling efficient bandwidth usage.
摘要翻译：提供了一个局域网，其中OFDM站（STA4-STA6，A8）和仅DSSS / CCK的站（STA1-STA3）共存。在发射之前，OFDM站获悉预期的接收站的调制能力只能够进行DSSS / CCK调制，然后OFDM站发送DSSS / CCK调制数据。如果接收站能够进行OFDM调制，则OFDM站传输OFDM调制数据，从而实现有效的带宽使用。

6. 发明申请

WO2004077718A3 APPARATUS AND METHOD TO OPTIMIZE POWER MANAGEMENT IN AN INDEPENDENT BASIS SERVICE SET OF A WIRELESS LOCAL AREA NETWORK 审中-公开
公开(公告)号：WO2004077718A3
公开(公告)日：2004-09-10
申请号：PCT/IB2004/000477
申请日：2004-02-23
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , ZHONG, Zhun , CHOI, Sunghyun
发明人： ZHONG, Zhun , CHOI, Sunghyun
IPC分类号： H04L12/56
摘要： An apparatus and method are provided by the present invention for power management in an Independent Basic Service Set Wireless Local Area Network (WLAN). The present invention uses explicit booking by wireless stations and implicit booking by overhearing booking and data frame transmission conversations by the wireless stations to achieve higher throughput thereby optimizing power use in an IBSS WLAN for a given Ad-hoc Traffic Indication Message (ATIM) window size.

7. 发明申请

WO2003075488A3 INTERNAL SIGNALING METHOD TO SUPPORT CLOCK SYNCHRONIZATION OF NODES CONNECTED VIA A WIRELESS LOCAL AREA NETWORK 审中-公开
公开(公告)号：WO2003075488A3
公开(公告)日：2003-09-12
申请号：PCT/IB2003/000838
申请日：2003-03-07
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V.
发明人： DEL PRADO PAVON, Javier , CHOI, Sunghyun
IPC分类号： H04J3/06
摘要： This invention discloses a set of internal signaling (i.e., management primitives) to support a clock-synchronization protocol for wirelessly synchronizing clock registers of wired or wireless nodes via a wireless local area network (i.e., 802.11 network). The clock synchronization is performed between two higher-layer protocol entities residing within two different wireless stations (STAs).

8. 发明申请

WO2003007551A1 POWER CONTROL IN A IEEE 802.11 WIRELESS LAN USING A HYBRID COORDINATION FUNCTION. 审中-公开
标题翻译：使用混合协调功能的IEEE 802.11无线局域网中的功率控制。
公开(公告)号：WO2003007551A1
公开(公告)日：2003-01-23
申请号：PCT/IB2002/002584
申请日：2002-06-28
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V.
发明人： SOOMRO, Amjad , CHOI, Sunghyun , DEL PRADO, Javier
IPC分类号： H04L12/28
CPC分类号： H04W52/367 , H04W84/12 , H04W92/18
摘要： A granted TxOP holder transmits the first frame of a QSTA-to-QSTA communication at a power level sufficient to ensure correct reception by the destination and at least detection by the HC, and then, with exceptions, transmits subsequent frames at a power level merely sufficient to ensure correct reception by the destination, regardless of reception or detection by the HC. Subsequent frames that must be received by the HC, such as those changing the TC queue size or requesting extension of the current TxOP, are transmitted at a power sufficient to ensure reception by the HC as well as the destination, as are the last frame(s). The HC is constrained from reclaiming the channel unconditionally merely because of failure to detect activity, and recovery is limited to the TxOP holder.
摘要翻译：授权的TxOP持有者以足以确保目的地的正确接收和至少由HC进行的检测的功率水平发送QSTA至QSTA通信的第一帧，然后例如仅在功率级别发送后续帧足以确保目的地的正确接收，不管HC接收或检测。必须由HC接收的后续帧，例如改变TC队列大小或请求扩展当前TxOP的后续帧，以足以确保HC以及目的地的接收的功率发送，如同最后一帧（ S）。 HC被限制在无条件地回收信道，仅因为无法检测到活动，并且恢复仅限于TxOP持有者。

9. 发明申请

WO2003007550A2 A SYSTEM AND METHOD FOR SHARING BANDWIDTH BETWEEN CO-LOCATED 802.11 A/E AND HIPERLAN/2 SYSTEMS 审中-公开
标题翻译：用于共享802.11 A / E和HIPERLAN / 2系统之间的带宽的系统和方法
公开(公告)号：WO2003007550A2
公开(公告)日：2003-01-23
申请号：PCT/IB2002/002540
申请日：2002-06-24
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V.
发明人： MANGOLD, Stefan , CHOI, Sunghyun , BUDDE, Wolfgang, O.
IPC分类号： H04L12/28
CPC分类号： H04W74/04 , H04W16/14 , H04W36/16 , H04W72/042 , H04W72/1278 , H04W84/12 , H04W88/08
摘要： A system and method for allocating a time slot to support data transmission between the co-located 802.11a/e and HIPERLAN/2 systems in a wireless local area network (WLAN) are provided. To comply with the H2 standard requirement of periodic transmission of the frame at every 2msec, the access point (AP) performs the QoS CF-Poll function to allow the transmission of the H2 MAC frames to occur at n * 2msec interval in the CCHC superframe, where the value of n depends on the HIPERLAN/2 MAC frame schedule of the AP. In particular, the AP polls itself to make other stations silent using the QoS CF-Poll function, then allocates a predetermined time period at each station to initiate H2 frame exchanges.
摘要翻译：提供了一种用于分配时隙以支持无线局域网（WLAN）中的同位置802.11a / e和HIPERLAN / 2系统之间的数据传输的系统和方法。为了遵循每2msec定期传输帧的H2标准要求，接入点（AP）执行QoS CF-Poll功能，以允许H MAC MAC帧在CCHC超帧中以n * 2msec间隔发送，其中n的值取决于AP的HIPERLAN / 2 MAC帧调度。特别地，AP轮询自己以使其他站静默使用QoS CF-Poll功能，然后在每个站点分配预定的时间段以启动H2帧交换。

10. 发明申请

WO2004077762A1 POWER MANAGEMENT IN AN IEEE 802.11 IBSS WLAN USING AN ADAPTIVE ATIM WINDOW 审中-公开
标题翻译：使用自适应ATIM窗口的IEEE 802.11 IBSS WLAN中的电源管理
公开(公告)号：WO2004077762A1
公开(公告)日：2004-09-10
申请号：PCT/IB2004/000488
申请日：2004-02-23
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , ZHONG, Zhun , CHOI, Sunghyun
发明人： ZHONG, Zhun , CHOI, Sunghyun
IPC分类号： H04L12/56
CPC分类号： H04W52/34 , H04W24/00 , H04W28/18 , H04W48/12 , H04W52/0216 , H04W84/12 , H04W84/18 , H04W88/02 , Y02D70/142 , Y02D70/22
摘要： An apparatus and method are provided for power management in an Independent Basic Service Set (IBSS) Wireless Local Area Network (WLAN) based on adjusting ATIM window size dynamically. In the present invention, each STA uses the gap between the last overheard Ad-hoc traffic indication message ATIM frame transmission and the end of the ATIM window to determine whether to increase or decrease the size of its ATIM window. Each STA of an IBSS competes to send its Beacon containing the size of its ATIM window and the window size of the winner is adopted by all STAs of the IBSS.
摘要翻译：提供了一种基于动态调整ATIM窗口大小的独立基本服务集（IBSS）无线局域网（WLAN）中的功率管理的装置和方法。在本发明中，每个STA使用最后侦听的Ad-hoc业务指示消息ATIM帧传输与ATIM窗口的结束之间的间隙来确定是否增加或减小其ATIM窗口的大小。 IBSS的每个STA都竞争发送包含其ATIM窗口大小的信标，并且获胜者的窗口大小由IBSS的所有STA采用。

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