CN2850150Y - 在一无线局域网中邻近扫描的系统 - Google Patents
在一无线局域网中邻近扫描的系统 Download PDFInfo
- Publication number
- CN2850150Y CN2850150Y CNU2005201130564U CN200520113056U CN2850150Y CN 2850150 Y CN2850150 Y CN 2850150Y CN U2005201130564 U CNU2005201130564 U CN U2005201130564U CN 200520113056 U CN200520113056 U CN 200520113056U CN 2850150 Y CN2850150 Y CN 2850150Y
- Authority
- CN
- China
- Prior art keywords
- sequence information
- time sequence
- time
- beacon
- sta
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000004891 communication Methods 0.000 claims abstract description 8
- 238000005259 measurement Methods 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 16
- 239000000523 sample Substances 0.000 description 7
- 230000004044 response Effects 0.000 description 6
- 239000010410 layer Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000009183 running Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
- H04W56/0015—Synchronization between nodes one node acting as a reference for the others
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/005—Discovery of network devices, e.g. terminals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/16—Interfaces between hierarchically similar devices
- H04W92/20—Interfaces between hierarchically similar devices between access points
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Mobile Radio Communication Systems (AREA)
- Small-Scale Networks (AREA)
Abstract
一种用在一无线网络(WLAN)中邻近扫描的系统,其包含一基站(STA),一第一存取点(AP)与该STA联系,以及一第二AP。该STA包含一第一时序信息装置、一排程装置,其配置以接收来自该第一时序信息装置的时序信息、以及一接收器,用以接收通信信号且能由该排程装置所控制。该第一AP包含一第二时序信息装置,其送出时序信息至在该STA中的该第一时序信息装置。该第二AP包含一信标发射装置,用以发射一信标信号,其中该时序信息与该信标信号有关。
Description
技术领域
本实用新型总的有关无线局域网(WLAN),尤其是有关一种邻近存取点(APs)的扫描方法。
背景技术
WLAN因为其便利和弹性而变得越来越受欢迎,当此类网络新的应用被开发出来时,他们的普及化便预期会显著增加。一个大有可为的领域便是网际网络语音协议(VoIP,Voice over Internet Protocol)的使用,且当使用者是移动用户时,在邻接WLAN部署区域中对无缝隙服务连续性支持(亦即:递交(handover))的需求也逐渐增加。
在802.11标准中,站台(STAs)可使用两种不同的模式以识别APs:主动扫描模式以及被动扫描模式。STA所使用的是主动扫描模式或是被动扫描模式,通常是由其组态设定所决定,实作上两种模式都有在使用。在主动扫描模式中,STA选择一频率频道并发射一探测请求帧(Probe Request frame),接着等待一定的时间以接收探测请求帧形式的响应。当基础服务集合(BSS)在基础建设模式中运作时,该探测请求帧典型地是由该AP送出。在此情况下,若STA在一定时间后并未接收到探测请求帧,则其调整到一个新的频率并重复此程序。
在被动扫描模式中,STA试着借由调整频率且监听一定时间,以找出一特定频率频道上BSS的存在,以便在固定的时间间隔中由该AP捕捉信标帧广播。在此情况下,若STA在一定时间后并未接收到信标帧广播,则其调整到一个新的频率并重复此程序。
当使用被动模式时,STA可知道在哪个频率频道可能会找到候选APs,但其无法确实知道邻近AP何时会送出信标帧。典型地,信标帧于预设固定时间间隔中送出,例如:每100ms,在最差情况下,STA调整到目标频率且必须等待至少100ms,直到一信标帧发生为止。当STA仅有一个接收器的情况下,其在旧频率上进行的服务会遭受中断,同时STA会在目标频率上执行被动扫描。
在一WLAN上执行一个有效率的递交必须包含数个需求,例如:用以递交的适当候选APs的识别和测量,STA认证的建立以及在目标AP中的安全内容,重新结合该目标AP,以及发射该数据炼结至该目标AP。
WALN传统上并未以提供完全无缝隙移动支持的目的发展,一个现行WLAN系统的问题便是由该STA对适当候选APs的识别和测量是个冗长的程序,且可能持续数百毫秒。除此之外,STA行为并未良好的描述,且测量程序的持续时间可因工厂所选择的不同执行方法而大大的不同。
为了避免被使用者中断重要服务,举例来说,在执行VoIP呼叫期间,递交程序需要快速地执行(服务中断时间典型地不应超过数十至数百毫秒)。除此之外,STA测量和识别邻近候选APs的程序不应以任何显著的方法冲击到正在进行服务的表现。
因此,便有需要改善被动扫描模式的效能,使得被动模式的使用可同时确保服务的连续性和无缝隙递交,尤其是在VoIP方面。
实用新型内容
本实用新型的目的是为了避免现有技术的问题而利用给予该站台一时序信息,由此搜寻邻近的AP时增进被动扫描模式的效能。
本实用新型包含关于发射间隔的方法、信号发送机制以及时序信息,以及邻近候选APs的排程。该AP送出关于邻近候选APs的时序信息至该STA,接着STA便能使用时序信息以排程其调整至该目标频率,并且在最小时间中执行该目标AP的识别和测量。
再邻近候选APs的时序信息可使用广播/多重广播形式的帧(举例来说包含在信标帧中),或是单一广播形式的媒体存取控制(MAC)帧送至STAs。除此之外,包含时序信息的信息组件(IE)可在MAC管理帧中送出,或是背负在MAC控制或数据帧上送出。
一种在一WLAN中邻近扫描的方法,该WLAN具有一STA,一第一AP连结至该STA,以及一第二AP。由产生关于该第二AP所送出的一信标信号的时序信息开始,该时序信息由该第一AP向该STA报告,该STA基于该时序信息排程一时间,以监听由该第二AP发射的信标信号。
一种在一WLAN中邻近扫描的系统,其包含一STA,一第一AP连结至该STA,以及一第二AP。该STA包含一第一时序信息装置、一排程装置,其配置以接收来自该第一时序信息装置的时序信息、以及一接收器,用以接收通信信号且能由该排程装置所控制。该第一AP包含一第二时序信息装置,其送出时序信息至在该STA中的该第一时序信息装置。该第二AP包含一信标发射装置,用以发射一信标信号,其中该时序信息关于该信标信号。
本实用新型可避免被使用者中断重要服务,例如在执行在网际网络语音协议呼叫期间,递交程序可快速地执行,例如使服务中断时间不超过数十至数百毫秒。除此之外,本实用新型还可使站台测量和识别邻近候选存取点的程序不会以任何显著的方法冲击到正在进行服务的表现。
附图说明
图1所示为一种用以通信介于STA、与该STA联系AP以及候选AP间时序信息的方法流程图;
图2所示为扫描一候选AP的时序图;
图3所示为扫描N个频道的时序图;以及
图4所示为一种用以通信介于STA、与该STA联系的AP以及候选AP间时序信息的系统图。
具体实施方式
此后,专用术语「站台(STA)」包含但并未限制于一无线发射/接收单元、一使用者设备、一移动站台、一固定或移动用户单元、一呼叫器或可在一无线环境下操作的任何形式装置。当本文此后提到专用术语「存取点(AP)」,其包含但并未限制于一基地台、一节点B、一站台控制器或是在无线环境下任何形式的接口装置。
本实用新型包含关于邻近候选APs发射间隔的时序信息,典型地为信标帧发射时间,由何处送出至一STA,以改善被动扫描模式的效率。
该AP送出关于该邻近候选APs的时序信息至该STA,该STA接着便能使用该时序信息,以排程其调整至该目标频率并在一最小时间中识别并测量该目标AP。
图1所示为用以通信介于一STA 102、与该STA 102连系的一AP(AP1)104、以及一候选AP(AP2)106间时序信息的方法100流程图。在非必要的第一步骤中,该STA 102向AP1104请求候选AP2 106的时序信息(步骤110)。该AP1104接着向AP2 106请求时序信息(步骤112)。AP2 106向AP1报告其时序信息(步骤114),此步骤仅在如果该AP1尚未预先获得AP2的时序信息才需要;AP1会有附加装置以获得该时序信息(下文讨论)。AP1向该STA 102报告AP2的时序信息(步骤116)。该STA 102接着排定时间以调整至AP2的频率以便监听AP2的信标(步骤118)。
邻近APs的时序信息可包含,举例来说:信标间隔(信标帧发生的周期性)、一目标信号帧发射时间、或是无争用及争用基础时期。关于邻近候选AP的时序信息可以绝对时间参考形式与该STA通信(例如:一种类似「邻近信标帧将于时间xyz发生」的时间戳记),或是对于一已知参考点的相对时间差(例如指示与由AP1将时序信息送至该STA帧的差距,或是与AP1前次或现行信标帧的差距)。
由于装置在发射信标前等待任何进行中的发射/接收结束的需求,下一个信标帧发射的时序在超过数毫米的精确度来说是未知的,因此该AP将一预测接收间隔时间(或等价地说,一目标时间加上一不确定保留幅度)发送至该STA。
提供给STAs的时序信息总是能由该不确定时期所补充,或是由一特定法则允许该STA会得该时序信息及/或该不确定时期。一般来说,现行的AP将不止通知该STA该候选AP的信标帧将比该现行AP的信标帧早N个时间单位发生,且亦会通知该STA,由于该难以预料的因素,该候选AP的信标帧将在指示时间或是时间间隔前M个时间单位及后L个时间单位内发生。另一个可能性便是不确定时期不用每次该AP提供时序信息时就描述,而是分开发送(举例来说:通过信标),或是以一特定固定值发送,两种方式都能省下信号发送频宽。
邻近候选APs的时序信息可使用征求性及/或非征求性广播/多重广播形式帧(举例来说,包含于一信标帧中),或是征求性及/或非征求性单一广播形式MAC帧(举例来说,在连结响应帧(Association Response frames)、重新连结响应帧(Reassociation Response frames)、或是探测响应帧中)送至STAs。包含时序信息的信息组件(IEs)能在(或部分在)MAC管理帧中发送,或是背负在MAC控制或数据帧上送出。通信时序信息至该STAs亦可包含使用层间服务原始方式(例如MAC 实体层(PHY)STA管理实体(SME))以在包含送出MAC信号发送帧、测量活动等活动上初始、确认及回报。
邻近候选APs的时序信息可在一特定AP以数种方法产生,包含:该AP使用网络端发送信号以撷取邻近APs时序信息、该AP使用其自身的邻近APs测量、该AP使用来自STA测量的报告、或是该AP在网络上使用一般的时序装置。
在网络端发送信号方面,该APs通过将APs连接在一起的分布式系统,交换关于其信标的发射时间信息。有数种可能的网络端信号发送执行方式,例如:一AP广播关于其信标发射时序的信息至所有在分布式系统上的APs、或是AP像另一个AP请求信标时序信息,而另一个AP则通过分布式系统响应。或者该AP可询问网络时序数据库,例如较佳地以作为中央控制或局域网络管理实体一部份的方式来实现,以获得关于其邻近APs的现行时序信息。
当该AP使用其自身的邻近APs测量时,该测量AP监听其它APs的信标,且测量该信标的发射时间,根据该信标发射间隔,该测量AP可推断大约的未来发射时间。当邻近APs使用与该测量AP相同的频率频道时,此方法才有用,要不然此方法将需要该测量AP不时调整至其它频率频道以便其能监听信标,这是个较不吸引人的解决方案。
在该AP使用来自STA测量的报告方面,STAs报告对等AP监听到来自邻近AP(s)信标的次数,其包含信标发射间隔、邻近APs的识别以及该邻近AP的时间戳记。该对等AP可使用此绝对和相关的时间参考组合以获取时序信息,该对等AP储存此信息于存储器中,且推断这些APs信标大约的未来发射时间。
当一STA进入一BSS时,其能在该连结请求帧、重新连结请求帧或是探测请求帧中设立一个旗标。该旗标是用以指示该STA想要在对应的连结请求帧、重新连结请求帧或是探测请求帧中接收一个邻近报告组件,该旗标能以数种方式执行,举例来说,可为一个简单位旗标或是一个IE,其包含多个值指示STA欲从该AP所撷取的信息形式。该邻近报告组件可包含一时序同步功能(TSF,timing synchronization function)信息字段,其包含一TSF偏差值以及一邻近AP的信标间隔值。该TSF偏差值以时序单位表示(TUs),其举例来说且不失一般性为一微米长度,且为介于该对等AP和在关于该对等AP的TUs中表示的邻近AP间的时序偏差。该信标间隔值可在一较佳实施方式及不失一般性中表示为一目标信标发射时间(TBTT,target beacon transmissiontime),其具有一典型的默认值100ms。
关于邻近候选APs的时序信息可在一AP管理信息基础(MIB)中储存、存取或配置。该MIB可为一MAC层MIB或是一PHY层MIB。
图2和图3所示为两种实施方式。在图2中,当该STA只刀该邻近候选AP的信标帧大约的抵达时间时,如果知道时序信息的话,STA需要停留在一给予频率以监听一特定AP的扫描期间典型地约为数毫秒,如果不知道时序信息的话可能会降到一完全信标间隔(典型地为100ms)。
在图3中所示为当在不同频道扫描数个APs时,所提出方法的增益。典型地,当使用时序信息时,该STA可根据该信标帧的发胜建立一排程,且在一单一或数个信标间隔中测量所有的信标帧。反之,如果不使用时序信息的话,必须请求数个信标间隔。在图3中所示的「不确定性间隔」提到,由于与其它发射区别的需要,关于该信标发射的确切时间。
上述的方法适用于IEEE 802.11基础的WLANs,且尤其是以802.11r(快速BSS发射)、802.11s(延伸服务集(ESS)网)、802.11k(无线资源测量)以及802.11n(高产能WLAN)为基础的WLANs。这些方法亦适用于其它无线网络形式。
图4所示为用以通信介于一STA 402、一与STA 402联系的AP(AP1)404及一候选AP(AP2)406间时序信息的系统400。当时序信息由AP2经由分布式网络传至AP1时,可使用本系统400。该STA 402包含一时序信息装置410、一排程装置412、一接收器414以及一天线416。AP1 404包含一时序信息装置420。该AP2 406包含一时序信息装置430、一信标发射装置432以及一天线434。
该系统400如下运作。在非必要的第一步骤中,该STA 402借由时序信息装置410向在AP1 404上的时序信息装置420送出请求,请求候选AP2 406的时序信息。该AP1 104接着分别通过时序信息装置420及时序信息装置430接收关于AP2 406的时序信息。如同前文参照图1所述,AP1 404可以不同方式接收关于该AP2 406的时序信息。
在AP2406中,该信标发射装置432经由天线434发射其信标,且通信该时序信息,以发射该信标至该时序信息装置430。该时序信息由该时序信息装置430送至在AP1 404中的时序信息装置420。AP1 404由该时序信息装置420送出该AP2 406的时序信息至在该STA 402中的时序信息装置410。
一旦该STA 402接收该AP2 406的时序信息,该时序信息由该时序信息装置410传至该排程装置412,该排程装置412决定该STA 402将于何时调整其接收器414以扫描并接收来自AP2 406的信标发射。
尽管本实用新型的特征和组件皆于实施例中以特定组合方式所描述,但实施例中每一特征或组件能独自使用(不需与较佳实施方式的其它特征或组件组合),或是与/不与本实用新型的其它特征和组件做不同组合。
Claims (13)
1.一种在一无线局域网中邻近扫描的系统,其特征在于所述系统包含:
一站台,其包含:
一第一时序信息装置;
一排程装置,用以接收来自该第一时序信息装置的时序信息;以及
一接收器,用以接收通信信号,该接收器可由该排程装置所控制;
一第一存取点(AP),与该站台联系,该第一AP包含一第二时序信息装置,该第二时序装置送出时序信息至在该站台中的该第一时序信息装置;以及
一第二AP,包含一信标发射装置,用以发射一信标信号,其中该时序信息与该信标信号相关。
2.如权利要求1所述系统,其特征在于该时序信息包含该信标信号发射的一绝对时间参考。
3.如权利要求1所述系统,其特征在于该时序信息包含一时间差距,其与该信标信号发射的一已知参考时间有关。
4.如权利要求1所述系统,其特征在于该时序信息包含该信标信号发射的一时间窗。
5.如权利要求1所述系统,其特征在于在该第二AP中还包含一第三时序信息装置,该第三时序信息装置接收来自该信标发射装置的时序信息,且通过网络端发送信号送出该时序信息至在该第一AP中的该第二时序信息装置。
6.如权利要求1所述系统,其特征在于该时序信息由该第一AP执行测量由该第二AP发射的信标信号而产生。
7.如权利要求1所述系统,其特征在于该时序信息由该第一AP接收来自连于该第一AP的站台的测量所产生,该测量与由该第二AP所发射的信标信号有关。
8.如权利要求1所述系统,其特征在于该排程装置接收关于来自该第二AP的信标信号的时序信息,且为该接收器排程一时间以接收来自该第二AP的信标信号。
9.如权利要求1所述系统,其特征在于该站台由该第一时序信息装置送出关于该第二AP的时序信息的一请求至在该第一AP中的该第二时序信息装置。
10.如权利要求1所述系统,其特征在于该第一AP由该第二时序信息装置送出关于该第二AP的时序信息的一请求至在该第二AP中的该第三时序信息装置。
11.如权利要求1所述系统,其特征在于在该第一AP中的该第二时序信息装置送出包含该时序信息的一信标帧至在该站台中的该第一时序信息装置。
12.如权利要求1所述系统,其特征在于该在该第一AP中的第二时序信息装置送出在一媒体存取控制帧中的一信息组件至该站台中的该第一时序信息装置,所述信息组件包含该时序信息。
13.如权利要求12所述系统,其特征在于该MAC帧属于一管理子形式。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US58715904P | 2004-07-12 | 2004-07-12 | |
US60/587,159 | 2004-07-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2850150Y true CN2850150Y (zh) | 2006-12-20 |
Family
ID=35336439
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA2005800233640A Pending CN101044768A (zh) | 2004-07-12 | 2005-06-29 | 无线区域网络中邻近扫描 |
CN201310069403.7A Active CN103152753B (zh) | 2004-07-12 | 2005-06-29 | 无线局域网中进行邻近扫描的方法、站以及接入点 |
CNU2005201130564U Expired - Lifetime CN2850150Y (zh) | 2004-07-12 | 2005-07-11 | 在一无线局域网中邻近扫描的系统 |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA2005800233640A Pending CN101044768A (zh) | 2004-07-12 | 2005-06-29 | 无线区域网络中邻近扫描 |
CN201310069403.7A Active CN103152753B (zh) | 2004-07-12 | 2005-06-29 | 无线局域网中进行邻近扫描的方法、站以及接入点 |
Country Status (19)
Country | Link |
---|---|
US (4) | US8099094B2 (zh) |
EP (2) | EP2900009B1 (zh) |
JP (6) | JP2008506335A (zh) |
KR (3) | KR101154099B1 (zh) |
CN (3) | CN101044768A (zh) |
AR (2) | AR050680A1 (zh) |
AU (2) | AU2005272103B2 (zh) |
BR (1) | BRPI0513115A (zh) |
CA (1) | CA2573290A1 (zh) |
DE (1) | DE202005010882U1 (zh) |
DK (1) | DK1774799T3 (zh) |
ES (1) | ES2614726T3 (zh) |
IL (1) | IL180611A0 (zh) |
MX (1) | MX2007000376A (zh) |
MY (2) | MY165200A (zh) |
NO (1) | NO20070808L (zh) |
SG (1) | SG153873A1 (zh) |
TW (5) | TWM287547U (zh) |
WO (1) | WO2006017024A2 (zh) |
Families Citing this family (75)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8099094B2 (en) * | 2004-07-12 | 2012-01-17 | Interdigital Technology Corporation | Neighbor scanning in wireless local area networks |
CN101002431A (zh) * | 2004-07-30 | 2007-07-18 | 皇家飞利浦电子股份有限公司 | 在无线lan中用于负荷平衡的系统和方法 |
US7706337B2 (en) * | 2004-10-22 | 2010-04-27 | Motorola, Inc. | Method for performing neighbor discovery in a multi-tier WLAN |
US8068467B2 (en) * | 2004-10-22 | 2011-11-29 | Motorola Soulutions, Inc. | Multi-tier WLAN and method for propagating beacons in a multi-tier WLAN thereof |
US7421048B2 (en) * | 2005-01-20 | 2008-09-02 | Vixs Systems, Inc. | System and method for multimedia delivery in a wireless environment |
US20060203850A1 (en) * | 2005-03-14 | 2006-09-14 | Johnson Walter L | Method and apparatus for distributing timing information in an asynchronous wireless communication system |
KR101337126B1 (ko) * | 2005-05-12 | 2013-12-05 | 삼성전자주식회사 | 무선랜 매쉬 네트워크에서의 핸드오버에 따른 재결합 수행 방법 및 장치 |
US7564826B2 (en) * | 2005-07-13 | 2009-07-21 | Texas Instruments Incorporated | Apparatus for and method of synchronization and beaconing in a WLAN mesh network |
KR101252725B1 (ko) * | 2005-09-16 | 2013-04-08 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 동적 스펙트럼 액세스 무선 시스템에서 점유 사용자로의통지 |
KR101261637B1 (ko) * | 2006-02-01 | 2013-05-06 | 엘지전자 주식회사 | 이기종 망 간 핸드오버 수행시 mih 메시지 전송 방법 |
GB0612438D0 (en) * | 2006-06-23 | 2006-08-02 | Siemens Ag | Network selection |
TWI316347B (en) * | 2006-11-06 | 2009-10-21 | Inst Information Industry | System, method, computer program product, and computer readable medium for a new node joining the wireless network |
US8339991B2 (en) * | 2007-03-01 | 2012-12-25 | Meraki, Inc. | Node self-configuration and operation in a wireless network |
US8401001B2 (en) * | 2007-03-28 | 2013-03-19 | Intel Corporation | Method and apparatus of connectivity recovery in wireless network |
RU2492595C2 (ru) * | 2007-05-02 | 2013-09-10 | Нокиа Корпорейшн | Способ, устройство и компьютерный программный продукт для сигнализации о назначении субкадров соседних сот |
TWI481225B (zh) * | 2007-06-01 | 2015-04-11 | Lg Electronics Inc | 在無線網路中之掃描程序、支援相同程序之站台以及其訊框格式 |
EP2048829A1 (en) * | 2007-10-01 | 2009-04-15 | Alcatel Lucent | Beacon and mobile terminal synchronization and method thereof |
WO2009057933A2 (en) * | 2007-11-01 | 2009-05-07 | Lg Electronics Inc. | Procedure of setting up peer link in wireless mesh network and wireless station supporting the same |
US8583154B2 (en) * | 2008-03-25 | 2013-11-12 | Siemens Aktiengesellschaft | Energy and time-efficient set-up of a wireless communication system |
DE602008000845D1 (de) * | 2008-04-09 | 2010-04-29 | Alcatel Lucent | Verfahren und Vorrichtung zur Vorbereitung und Ausführung von Messungen in einem Funkkommunikationssystem |
US8576759B2 (en) | 2008-07-11 | 2013-11-05 | Marvell World Trade Ltd. | Partial power save mode for access points during device discovery |
EP2304992B1 (en) | 2008-07-11 | 2013-01-23 | Marvell World Trade Ltd. | Power save mode for access points |
US8412203B2 (en) * | 2008-10-31 | 2013-04-02 | Avaya Inc. | Next generation cell phone |
US8638702B2 (en) * | 2008-12-12 | 2014-01-28 | Broadcom Corporation | Method and system for time based WLAN scanning |
EP2199818B1 (en) * | 2008-12-19 | 2019-02-20 | Koninklijke KPN N.V. | Method of determining a location of a mobile device |
EP2205024A1 (en) * | 2008-12-31 | 2010-07-07 | Alcatel, Lucent | Method for adaptive scanning in a wireless network and a wireless network |
US8526419B2 (en) * | 2009-01-05 | 2013-09-03 | Qualcomm Incorporated | Provision of inter-frequency subframe configuration in wireless communication |
EP2389783B1 (fr) | 2009-01-20 | 2013-10-23 | Alcatel Lucent | Procede de gestion du fonctionnement d'un point d'acces radio d'une infrastructure de reseau d'acces d'un reseau de radiocommunication |
TWI419514B (zh) * | 2009-02-03 | 2013-12-11 | Inst Information Industry | 用於一感測網路之節點裝置、節點數量調整方法及其電腦程式產品 |
US8204529B2 (en) * | 2009-02-05 | 2012-06-19 | Motorola Solutions, Inc. | Device and method for frequency scanning using two radios |
US20130201963A1 (en) * | 2010-01-19 | 2013-08-08 | Qualcomm Incorporated | Receiving gsm timing information from td-scdma base station to facilitate td-scdma to gsm wireless handover |
US9131457B2 (en) | 2010-08-12 | 2015-09-08 | Samsung Electronics Co., Ltd. | Apparatus and method for transmission of uplink sounding reference signals in a wireless network |
WO2012171215A1 (en) * | 2011-06-17 | 2012-12-20 | Qualcomm Incorporated | Apparatus and method of inter-radio access technology searching |
WO2012162673A2 (en) * | 2011-05-25 | 2012-11-29 | Qualcomm Incorporated | Apparatus and method of inter-radio access technology searching |
US8923137B2 (en) | 2012-02-06 | 2014-12-30 | Qualcomm Incorporated | System and method for information verification based on channel awareness |
EP2632071A1 (en) | 2012-02-21 | 2013-08-28 | Thomson Licensing | Method for assessing quality of a radio transmission channel, and residential gateway using the method |
WO2013147563A1 (ko) * | 2012-03-30 | 2013-10-03 | 엘지전자 주식회사 | 무선랜 시스템에서 비콘 송수신 방법 및 장치 |
KR20130125276A (ko) | 2012-05-08 | 2013-11-18 | 한국전자통신연구원 | Short Probe Response를 이용한 효율적인 스캐닝 방법 |
US9167622B2 (en) | 2012-05-23 | 2015-10-20 | Qualcomm Incorporated | Methods and a system of multiplexing multiple concurrent operational modes on a single physical transceiver by opportunistic time stealing |
US9398519B2 (en) * | 2012-06-22 | 2016-07-19 | Apple Inc. | Beacon frame monitoring |
CN108811041B (zh) | 2012-07-03 | 2021-05-25 | 交互数字专利控股公司 | 在无线站中使用的用于快速初始链路建立的方法及无线站 |
TWI558257B (zh) * | 2012-07-31 | 2016-11-11 | 財團法人工業技術研究院 | 小型基地台檢測方法以及使用所述方法的裝置 |
US9661560B2 (en) * | 2012-08-08 | 2017-05-23 | Lg Electronics Inc. | Scanning method and apparatus in wireless LAN |
JP5853140B2 (ja) * | 2012-09-07 | 2016-02-09 | パナソニックIpマネジメント株式会社 | 通信端末装置、通信システムおよび通信端末装置の制御方法 |
US9426738B2 (en) | 2012-11-14 | 2016-08-23 | Qualcomm Incorporated | Systems and methods for multi-channel concurrency |
US9544811B2 (en) * | 2012-11-19 | 2017-01-10 | Qualcomm Incorporated | Systems and methods for beacon timing adjustment in wireless networks |
WO2014101028A1 (zh) | 2012-12-26 | 2014-07-03 | 华为技术有限公司 | 搜索无线局域网接入点的方法、装置及系统 |
US9693288B2 (en) | 2013-01-08 | 2017-06-27 | Lg Electronics Inc. | Method and apparatus for obtaining information related to beacon transmission in wireless communication system |
US9807691B2 (en) | 2013-02-28 | 2017-10-31 | Qualcomm Incorporated | Polling beacon |
KR20140111513A (ko) * | 2013-03-11 | 2014-09-19 | 삼성전자주식회사 | 무선 통신 방법 및 장치 |
JP2014209718A (ja) * | 2013-03-29 | 2014-11-06 | 株式会社Jvcケンウッド | 無線lanシステム |
US9942832B2 (en) | 2013-03-29 | 2018-04-10 | JVC Kenwood Corporation | Wireless LAN system and wireless communication device |
JP2014230110A (ja) * | 2013-05-23 | 2014-12-08 | Kddi株式会社 | 無線端末がアクセスポイントを発見するシステム、プログラム及び方法 |
US9526066B2 (en) | 2013-08-30 | 2016-12-20 | Qualcomm Incorporated | Methods, access point and wireless device for optimizing the modulation and coding scheme (MCS) used for exchanging probe request and probe responses between an access point and a wireless device |
KR102122488B1 (ko) * | 2013-10-22 | 2020-06-12 | 삼성전자주식회사 | 무선 통신 시스템에서 핸드오버 장치 및 방법 |
US9807790B2 (en) * | 2013-10-31 | 2017-10-31 | Qualcomm Incorporated | Maximum away duration |
CN104754766B (zh) * | 2013-12-31 | 2018-11-06 | 海尔集团公司 | 信息传输方法及装置 |
US9949315B2 (en) * | 2014-02-24 | 2018-04-17 | Qualcomm Incorporated | Techniques for enabling asynchronous transmissions in an unlicensed radio frequency spectrum band |
CN103974450B (zh) * | 2014-03-10 | 2018-04-06 | 魅族科技(中国)有限公司 | 一种无线通信方法、相关设备及系统 |
WO2015138914A1 (en) * | 2014-03-14 | 2015-09-17 | Interdigital Patent Holdings, Inc. | Method and apparatus for dual-band mesh operations |
US10349443B2 (en) * | 2014-06-03 | 2019-07-09 | Airties Kablosuz Iletisim San. Ve Des Tic. A.S. | Universal repeater, a method of operating a universal repeater and a network including the same |
WO2015188846A1 (en) * | 2014-06-10 | 2015-12-17 | Telefonaktiebolaget L M Ericsson (Publ) | Scanning for access points in a wireless local area network |
WO2015199587A1 (en) * | 2014-06-24 | 2015-12-30 | Telefonaktiebolaget L M Ericsson (Publ) | Discovery in a wireless communications system |
US10091812B2 (en) | 2015-01-15 | 2018-10-02 | Nokia Solutions And Networks Oy | Method and apparatus for implementing low-latency and robust uplink access |
US9648616B2 (en) | 2015-01-15 | 2017-05-09 | Nokia Solutions And Networks Oy | Method and apparatus for implementing efficient low-latency uplink access |
US9974112B2 (en) * | 2016-03-08 | 2018-05-15 | Seiko Epson Corporation | Wireless communication apparatus and wireless communication method |
US20170290067A1 (en) * | 2016-03-29 | 2017-10-05 | Intel IP Corporation | Apparatus, system and method of establishing a session |
EP3264712A1 (en) | 2016-06-28 | 2018-01-03 | Thomson Licensing | Apparatus and method for autorizing access to a service according to device proximity |
US20180184435A1 (en) * | 2016-12-27 | 2018-06-28 | Intel IP Corporation | Apparatus, system, and method for transitioning between wireless access points based on a received signal strength indicator value of a low-power wake-up packet |
JP6616805B2 (ja) * | 2017-07-06 | 2019-12-04 | Kddi株式会社 | ビーコンの待ち受けを制御するアクセスポイント、無線端末、プログラム及び方法 |
WO2019066853A1 (en) * | 2017-09-28 | 2019-04-04 | Intel Corporation | METHODS AND APPARATUS TO FACILITATE ENHANCED DISTRIBUTED CHANNEL ACCESS AND POWER REDUCTION FOR ACCESS POINT TRIGGERS |
US10820284B2 (en) | 2018-08-31 | 2020-10-27 | Cisco Technology, Inc. | TBTT synchronization between Wi-Fi access points |
CN110224803B (zh) * | 2019-07-10 | 2021-11-23 | 济宁微晶电子科技有限公司 | 一种实现beacon自主发现的LoRa通信方法 |
WO2023151081A1 (zh) * | 2022-02-14 | 2023-08-17 | 北京小米移动软件有限公司 | 通信方法和通信装置 |
US20240179644A1 (en) * | 2022-11-30 | 2024-05-30 | Cisco Technology, Inc. | Differential time synchronization and scheduling |
Family Cites Families (63)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5530915A (en) * | 1993-02-26 | 1996-06-25 | Motorola, Inc. | Method for determining and utilizing simulcast transmit times by master transceiver |
US6137784A (en) * | 1995-10-18 | 2000-10-24 | Sc-Wireless Inc. | Method and apparatus for wireless communication employing control for confidence metric bandwidth reduction |
US6112058A (en) | 1995-10-18 | 2000-08-29 | Sc-Wireless Inc. | Method and apparatus for wireless communication employing confidence metric processing for bandwidth reduction |
US5923702A (en) * | 1996-06-10 | 1999-07-13 | Breeze Wireless Communications Ltd. | Frequency hopping cellular LAN system |
JPH1050820A (ja) | 1996-08-01 | 1998-02-20 | Nittetsu Semiconductor Kk | 半導体装置およびその製造方法 |
US5940765A (en) * | 1996-08-30 | 1999-08-17 | Telefonaktiebolaget Lm Ericsson | Radio communications systems and methods for jittered beacon transmission |
US20060280140A9 (en) * | 1997-02-06 | 2006-12-14 | Mahany Ronald L | LOWER POWER WIRELESS BEACONING NETWORK SUPPORTING PROXIMAL FORMATION, SEPARATION AND REFORMATION OF WIRELESS LOCAL AREA NETWORKS (LAN's), AS TERMINALS MOVE IN AND OUT RANGE OF ONE ANOTHER |
US5970414A (en) | 1997-05-30 | 1999-10-19 | Lucent Technologies, Inc. | Method for estimating a mobile-telephone's location |
FI105251B (fi) | 1997-06-18 | 2000-06-30 | Nokia Mobile Phones Ltd | Menetelmä aikajakoisen solukkoverkon tukiasemien tunnistamiseksi matkaviestimessä ja matkaviestin |
FI105252B (fi) * | 1997-07-14 | 2000-06-30 | Nokia Mobile Phones Ltd | Menetelmä ajan varaamiseksi matkaviestimelle |
US6526039B1 (en) | 1998-02-12 | 2003-02-25 | Telefonaktiebolaget Lm Ericsson | Method and system for facilitating timing of base stations in an asynchronous CDMA mobile communications system |
US6728540B1 (en) | 1998-03-09 | 2004-04-27 | Avaya Technology Corp. | Assisted handover in a wireless communication system |
US6345043B1 (en) * | 1998-07-06 | 2002-02-05 | National Datacomm Corporation | Access scheme for a wireless LAN station to connect an access point |
GB9819482D0 (en) * | 1998-09-07 | 1998-10-28 | Nokia Telecommunications Oy | Communication system |
US6675015B1 (en) | 1999-09-15 | 2004-01-06 | Nokia Corporation | Apparatus, and associated method, for facilitating communication handovers in a bluetooth-public-access radio communication system |
KR100307635B1 (ko) | 1999-09-27 | 2001-11-02 | 윤종용 | SiGe 채널의 모스 트랜지스터 및 그 제조 방법 |
DE60106706T2 (de) * | 2000-02-17 | 2005-03-10 | Samsung Electronics Co., Ltd., Suwon | Verfahren und vorrichtung zur zuweisung eines gemeinsames paketkanals in einem cdma-nachrichtensystem |
JP3673149B2 (ja) * | 2000-07-11 | 2005-07-20 | クラリオン株式会社 | 無線lanの高速ローミング方法 |
US6429061B1 (en) | 2000-07-26 | 2002-08-06 | International Business Machines Corporation | Method to fabricate a strained Si CMOS structure using selective epitaxial deposition of Si after device isolation formation |
WO2002065707A2 (en) * | 2000-12-26 | 2002-08-22 | Bluesocket, Inc. | Methods and systems for clock synchronization across wireless networks |
US7433683B2 (en) * | 2000-12-28 | 2008-10-07 | Northstar Acquisitions, Llc | System for fast macrodiversity switching in mobile wireless networks |
JP2002215410A (ja) * | 2001-01-16 | 2002-08-02 | Nippon Telegr & Teleph Corp <Ntt> | 利用者装置並びに利用者装置ap格納方法及び削除方法 |
CN1633780A (zh) | 2001-05-01 | 2005-06-29 | 皇家菲利浦电子有限公司 | 无线通信方案 |
JP3601486B2 (ja) | 2001-08-20 | 2004-12-15 | 日本電気株式会社 | 無線lanシステムとその制御方法 |
KR100438824B1 (ko) * | 2001-08-23 | 2004-07-05 | 삼성전자주식회사 | 일대다 데이타 통신망의 전파 지연 보상 방법들 |
CA2408423C (en) * | 2001-10-17 | 2013-12-24 | Nec Corporation | Mobile communication system, communication control method, base station and mobile station to be used in the same |
KR100479169B1 (ko) | 2001-10-26 | 2005-03-25 | 삼성전자주식회사 | 이동 통신 시스템의 셀 탐색 장치 및 방법 |
US7406319B2 (en) * | 2001-11-19 | 2008-07-29 | At&T Corp. | WLAN having load balancing by access point admission/termination |
EP1324541B1 (en) * | 2001-12-26 | 2007-09-05 | Kabushiki Kaisha Toshiba | Communication system, wireless communication apparatus, and communication method |
JP4168633B2 (ja) * | 2002-01-17 | 2008-10-22 | 日本電気株式会社 | 無線基地局におけるパケットスケジューリング方法、パケット転送装置およびパケットスケジューリングプログラム |
US7689225B2 (en) | 2002-01-28 | 2010-03-30 | Ntt Docomo, Inc. | Method and apparatus for dormant mode support with paging |
JP2003259433A (ja) * | 2002-02-28 | 2003-09-12 | Sony Corp | 無線通信システム、無線通信装置及び無線通信方法、並びにコンピュータ・プログラム |
JP4263106B2 (ja) * | 2002-03-08 | 2009-05-13 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 802.11無線ローカルエリアネットワークにおける単一の統一のチャネル静寂/測定要求要素を提供するための方法及びシステム |
JP3785108B2 (ja) * | 2002-03-28 | 2006-06-14 | 株式会社東芝 | 通信方法、通信装置、基地局装置及び端末装置 |
US7151945B2 (en) * | 2002-03-29 | 2006-12-19 | Cisco Systems Wireless Networking (Australia) Pty Limited | Method and apparatus for clock synchronization in a wireless network |
FR2839234B1 (fr) | 2002-04-30 | 2004-08-27 | Nortel Networks Ltd | Procede de controle d'echanges de trames entre une unite de controle et au moins une station radio, et unite de controle pour la mise en oeuvre du procede |
US7177661B2 (en) * | 2002-05-06 | 2007-02-13 | Extricom Ltd. | Communication between wireless access points over LAN cabling |
US7327690B2 (en) * | 2002-08-12 | 2008-02-05 | Harris Corporation | Wireless local or metropolitan area network with intrusion detection features and related methods |
JP3845347B2 (ja) * | 2002-08-28 | 2006-11-15 | Necインフロンティア株式会社 | 高速ローミング方式 |
US6950655B2 (en) | 2002-10-01 | 2005-09-27 | Interdigital Technology Corporation | Method and system wherein handover information is broadcast in wireless local area networks |
US7417971B2 (en) * | 2002-10-04 | 2008-08-26 | Ntt Docomo, Inc. | Method and apparatus for dormant mode support with paging |
US7355991B2 (en) | 2002-11-26 | 2008-04-08 | Motorola, Inc. | Method and apparatus for message flooding within a communication system |
JP2004178290A (ja) * | 2002-11-27 | 2004-06-24 | Hitachi Ltd | 管理サーバ装置,apサーバ,及びプログラムを記憶した記憶媒体 |
US7580394B2 (en) * | 2002-11-27 | 2009-08-25 | Nokia Corporation | System and method for collision-free transmission scheduling in a network |
KR20050085570A (ko) | 2002-12-11 | 2005-08-29 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 무선 근거리 네트워크에서 고속 핸드오프를 수행하는시스템 및 방법 |
US7263105B2 (en) | 2002-12-18 | 2007-08-28 | Intel Corporation | WLAN device and method for interfacing between a MAC sublayer and a physical layer |
US7337337B2 (en) | 2003-01-13 | 2008-02-26 | Samsung Electronics Co., Ltd. | Apparatus and method of reducing power consumption using power-save polling list |
KR100580244B1 (ko) | 2003-01-23 | 2006-05-16 | 삼성전자주식회사 | 무선랜상의 핸드오프 방법 |
US7302227B2 (en) * | 2003-02-03 | 2007-11-27 | Sony Corporation | Communication method, communication device, and computer program |
US7508781B2 (en) * | 2003-03-25 | 2009-03-24 | Texas Instruments Incorporated | Power saving mechanism for wireless LANs via schedule information vector |
JP2005157825A (ja) | 2003-11-27 | 2005-06-16 | Hitachi Ltd | 障害復旧機能を有する計算機システム、および、障害復旧方法 |
AR047102A1 (es) * | 2003-07-17 | 2006-01-11 | Interdigital Tech Corp | Un metodo y un sistema para la entrega de datos asistenciales referentes a los diferentes puntos de acceso |
US6990428B1 (en) * | 2003-07-28 | 2006-01-24 | Cisco Technology, Inc. | Radiolocation using path loss data |
US7286515B2 (en) * | 2003-07-28 | 2007-10-23 | Cisco Technology, Inc. | Method, apparatus, and software product for detecting rogue access points in a wireless network |
US7293088B2 (en) * | 2003-07-28 | 2007-11-06 | Cisco Technology, Inc. | Tag location, client location, and coverage hole location in a wireless network |
US6980535B2 (en) * | 2003-08-28 | 2005-12-27 | Motorola, Inc. | Passive probing for handover in a local area network |
US7583643B2 (en) * | 2003-09-30 | 2009-09-01 | Motorola, Inc. | Enhanced passive scanning |
US20050190731A1 (en) * | 2004-03-01 | 2005-09-01 | Yigal Bejerano | Methods and devices for providing a relative level of fairness and QoS guarantees to wireless local area networks |
KR100648311B1 (ko) * | 2004-04-28 | 2006-11-23 | 삼성전자주식회사 | 무선망에서 타임슬롯 예약 충돌 회피와 해결을 위한 방법 |
US20050265288A1 (en) * | 2004-05-27 | 2005-12-01 | Jiewen Liu | Apparatus and method capable of automatic allocation of operating channels in a wireless network |
US7239626B2 (en) * | 2004-06-30 | 2007-07-03 | Sharp Laboratories Of America, Inc. | System clock synchronization in an ad hoc and infrastructure wireless networks |
US8099094B2 (en) * | 2004-07-12 | 2012-01-17 | Interdigital Technology Corporation | Neighbor scanning in wireless local area networks |
US20130143555A1 (en) * | 2011-12-02 | 2013-06-06 | Qualcomm Incorporated | Managing access terminal handover in view of access point physical layer identifier confusion |
-
2005
- 2005-06-28 US US11/168,707 patent/US8099094B2/en active Active
- 2005-06-29 CN CNA2005800233640A patent/CN101044768A/zh active Pending
- 2005-06-29 TW TW094210961U patent/TWM287547U/zh not_active IP Right Cessation
- 2005-06-29 TW TW097124802A patent/TWI393372B/zh active
- 2005-06-29 TW TW103127385A patent/TWI558234B/zh active
- 2005-06-29 AU AU2005272103A patent/AU2005272103B2/en active Active
- 2005-06-29 SG SG200904409-0A patent/SG153873A1/en unknown
- 2005-06-29 CA CA002573290A patent/CA2573290A1/en not_active Abandoned
- 2005-06-29 EP EP15158035.4A patent/EP2900009B1/en active Active
- 2005-06-29 ES ES15158035.4T patent/ES2614726T3/es active Active
- 2005-06-29 EP EP05762531.1A patent/EP1774799B1/en active Active
- 2005-06-29 TW TW094121999A patent/TWI390872B/zh not_active IP Right Cessation
- 2005-06-29 DK DK05762531.1T patent/DK1774799T3/en active
- 2005-06-29 WO PCT/US2005/023145 patent/WO2006017024A2/en active Application Filing
- 2005-06-29 JP JP2007521488A patent/JP2008506335A/ja active Pending
- 2005-06-29 MX MX2007000376A patent/MX2007000376A/es active IP Right Grant
- 2005-06-29 TW TW101125691A patent/TW201246825A/zh unknown
- 2005-06-29 BR BRPI0513115-4A patent/BRPI0513115A/pt not_active Application Discontinuation
- 2005-06-29 CN CN201310069403.7A patent/CN103152753B/zh active Active
- 2005-07-11 MY MYPI20090385A patent/MY165200A/en unknown
- 2005-07-11 CN CNU2005201130564U patent/CN2850150Y/zh not_active Expired - Lifetime
- 2005-07-11 MY MYPI20053158A patent/MY161527A/en unknown
- 2005-07-11 AR ARP050102860A patent/AR050680A1/es active IP Right Grant
- 2005-07-11 DE DE202005010882U patent/DE202005010882U1/de not_active Expired - Lifetime
- 2005-07-12 KR KR1020050062724A patent/KR101154099B1/ko active IP Right Grant
- 2005-09-29 KR KR1020050091509A patent/KR101156805B1/ko active IP Right Grant
-
2007
- 2007-01-09 IL IL180611A patent/IL180611A0/en active IP Right Grant
- 2007-02-12 NO NO20070808A patent/NO20070808L/no not_active Application Discontinuation
-
2008
- 2008-10-16 AU AU2008229950A patent/AU2008229950B2/en not_active Ceased
-
2009
- 2009-02-05 JP JP2009025281A patent/JP4981077B2/ja active Active
- 2009-03-19 AR ARP090100984A patent/AR070991A2/es active IP Right Grant
-
2011
- 2011-09-07 KR KR1020110090905A patent/KR101216771B1/ko active IP Right Grant
- 2011-12-22 US US13/335,375 patent/US8682368B2/en active Active
-
2012
- 2012-02-20 JP JP2012034216A patent/JP5694974B2/ja active Active
-
2013
- 2013-08-13 JP JP2013168281A patent/JP5779621B2/ja not_active Expired - Fee Related
-
2014
- 2014-03-24 US US14/223,069 patent/US9191837B2/en active Active
- 2014-09-17 JP JP2014189120A patent/JP6077506B2/ja active Active
-
2015
- 2015-10-30 US US14/927,758 patent/US9906995B2/en active Active
- 2015-11-04 JP JP2015217015A patent/JP2016029850A/ja not_active Withdrawn
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN2850150Y (zh) | 在一无线局域网中邻近扫描的系统 | |
US8626073B2 (en) | Use of measurement pilot for radio measurement in a wireless network | |
CN1788510A (zh) | 使用指示器周期测量管理网络的方法及装置 | |
KR200397752Y1 (ko) | Wlan에서의 이웃 스캐닝 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CX01 | Expiry of patent term |
Expiration termination date: 20150711 Granted publication date: 20061220 |
|
EXPY | Termination of patent right or utility model |