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公开(公告)号：US08254331B2
公开(公告)日：2012-08-28
申请号：US12414934
申请日：2009-03-31
CPC分类号： H04W36/385
摘要： Disclosed is a method and device for managing handoff of an access terminal in a radio access network (RAN). An access terminal may detect a handoff trigger, determine whether there is an ongoing data transfer in progress, determine an amount remaining in the data transfer, compare the amount remaining to a threshold amount, and delay or cancel the handoff if the amount remaining is below the threshold amount. Additionally, the access terminal may consider signal strength of the current (source) coverage area in determining whether to delay or cancel the handoff.
摘要翻译： 公开了一种用于管理无线电接入网络（RAN）中的接入终端的切换的方法和设备。 接入终端可以检测切换触发，确定是否正在进行正在进行的数据传输，确定数据传输中剩余的数量，将剩余的量与阈值量进行比较，并且如果剩余的数量低于延迟或者取消切换 阈值量。 此外，接入终端可以在确定是延迟还是取消切换时考虑当前（源）覆盖区域的信号强度。
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12.发明授权Using RF conditions and handoff state to dynamically adjust a search window size 有权使用RF条件和切换状态来动态调整搜索窗口大小公开(公告)号：US08224320B1
公开(公告)日：2012-07-17
申请号：US12547150
申请日：2009-08-25
IPC分类号： H04W4/00
CPC分类号： H04W28/18 , H04B1/70754 , H04L25/067 , H04W24/00 , H04W36/00
摘要： Methods and apparatus are provided for dynamically adjusting a search-window size. An active-call state is entered into, and a mobile station is responsively initially operated according to a default-search-window mode. The preferred-signal strength as received at the mobile station, the preferred-signal fading of the mobile station, and the number of sectors in an active set for the mobile station are monitored to: compare the preferred-signal strength to a signal-strength threshold, compare the preferred-signal fading to at least one of a lower-fading threshold and an upper-fading threshold, and determine whether the number of sectors in the active set is exactly one sector or more than one sector. The mobile station is selectively operated in one of the default-search-window mode, a reduced-search-window mode, and an increased-search-window mode in response to the monitored preferred-signal strength, preferred-signal fading, and number of sectors in the active set.
摘要翻译： 提供了用于动态调整搜索窗口大小的方法和装置。 进入主动呼叫状态，根据默认搜索窗口模式响应地初始地操作移动台。 监测在移动台接收的优选信号强度，移动台的优选信号衰落以及用于移动台的活动集中的扇区数量，以将优选信号强度与信号强度进行比较 阈值，将优选信号衰落与低衰落阈值和高衰落阈值中的至少一个进行比较，并且确定活动集合中的扇区数量是正好是一个扇区还是多于一个扇区。 响应于所监测的优选信号强度，优选信号衰落和数量，移动站选择性地以默认搜索窗口模式，减少搜索窗口模式和增加搜索窗口模式中的一种操作 的活动集中的部门。
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13.发明授权Method and system for transmitting a voice mail indication to a mobile station 有权用于向移动台发送语音邮件指示的方法和系统公开(公告)号：US08169962B1
公开(公告)日：2012-05-01
申请号：US12368906
申请日：2009-02-10
CPC分类号： H04L12/66 , H04M3/533 , H04M3/53308 , H04M3/537 , H04M2207/18
摘要： A radio access network (RAN) receives a request to route a call from a caller to a mobile station, assigns a wireless traffic channel to the mobile station for the call, and detects a no-answer condition for the call (because a user of the mobile station does not answer the call within a predetermined time period or has chosen to ignore the call). In response to the no-answer condition, the RAN redirects the call to a voice mail system and keeps the wireless traffic channel assigned to the mobile station while the caller interacts with the voice mail system. The RAN determines that the caller has left a voice mail message on the voice mail system and transmits an indication of the voice mail message to the mobile station over the wireless traffic channel.
摘要翻译： 无线接入网（RAN）接收从呼叫者呼叫到移动台的呼叫请求，为移动台分配无线业务信道给移动台，并且检测呼叫的无应答状况（因为用户的 移动台在预定时间段内没有应答呼叫或者已经选择忽略该呼叫）。 响应于无应答条件，RAN将呼叫重定向到语音邮件系统，并且在呼叫者与语音邮件系统交互的同时将无线业务信道分配给移动台。 RAN确定呼叫者已经在语音邮件系统上留下语音邮件消息，并通过无线业务信道向移动台发送语音邮件消息的指示。
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14.发明授权Method and system for selecting target error rates for power-controlling wireless communication links 有权用于选择无线通信链路功率控制目标误码率的方法和系统公开(公告)号：US08126497B1
公开(公告)日：2012-02-28
申请号：US12396908
申请日：2009-03-03
IPC分类号： H04B7/00
CPC分类号： H04W52/20 , H04W52/12 , H04W52/143 , H04W52/146
摘要： A wireless communication link (a forward link or a reverse link) between a base station and a mobile station may be power-controlled to reduce a difference between an observed error rate in communications received over the link and a target error rate. The target error rate may be dependent upon the radio frequency (RF) conditions at the mobile station, which may be determined by measuring a signal strength of a pilot signal transmitted by the base station. Thus, a pilot signal strength at the mobile station may be determined, a target error rate may be selected based on the pilot signal strength, and the target error rate may be used to control a transmit power level of the wireless communication link. A mobile station may power-control a forward link and/or a base station may power-control a reverse link using a target error rate selected in this way.
摘要翻译： 可以对基站和移动站之间的无线通信链路（前向链路或反向链路）进行功率控制，以减少通过链路接收到的通信中观察到的误码率与目标错误率之间的差异。 目标错误率可以取决于移动站处的射频（RF）条件，其可以通过测量由基站发送的导频信号的信号强度来确定。 因此，可以确定移动站处的导频信号强度，可以基于导频信号强度来选择目标误码率，并且可以使用目标误码率来控制无线通信链路的发射功率电平。 移动站可以对前向链路进行功率控制，和/或基站可以使用以这种方式选择的目标错误率来对控制反向链路进行功率控制。
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公开(公告)号：US08107435B1
公开(公告)日：2012-01-31
申请号：US12488163
申请日：2009-06-19
IPC分类号： H04Q7/00
CPC分类号： H04W36/30 , H04W36/0055 , H04W88/10
摘要： An access terminal may be requesting from an access network data in a first coverage area at a first data rate, which is determined based on at least one signal condition of the first coverage area. The access terminal may then decide to switch from requesting data in a first coverage area to requesting data in a second coverage area. In response, the access terminal may (a) request data in the first coverage area at an increased second data rate and (b) send to the access network a notification of the decision to switch from requesting data in a first coverage area to requesting data in a second coverage area. After sending the notification, the access terminal may request data in the second coverage area at a third data rate, which is determined based on at least one signal condition of the second coverage area.
摘要翻译： 接入终端可以以基于第一覆盖区域的至少一个信号条件确定的第一数据速率从第一覆盖区域中的接入网络请求数据。 然后，接入终端可以决定从第一覆盖区域中的请求数据切换到第二覆盖区域中的请求数据。 作为响应，接入终端可以（a）以增加的第二数据速率请求第一覆盖区域中的数据，并且（b）向接入网络发送关于从第一覆盖区域中的请求数据切换到请求数据的决定的通知 在第二个覆盖区域。 在发送通知之后，接入终端可以基于第二覆盖区域的至少一个信号条件确定的第三数据速率请求第二覆盖区域中的数据。
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公开(公告)号：US08675513B1
公开(公告)日：2014-03-18
申请号：US12827604
申请日：2010-06-30
IPC分类号： H04L12/26
CPC分类号： H04L1/20 , H04L1/0009 , H04L1/0033 , H04L2001/0096 , H04W76/15 , H04W76/20
摘要： A mobile station and a radio access network (RAN) use a single-channel forward link and a single-channel reverse link for a communication session. If the quality of the communication session degrades, the single-channel forward link is replaced with a multi-channel forward link and/or the single-channel reverse link is replaced with a multi-channel reverse link. The multi-channel forward link may include a first forward link channel and a second forward link channel, each with a higher coding gain than that of the single-channel forward link, to provide an aggregate data rate that is substantially the same as that of the single-channel forward link. The multi-channel reverse link may include a first reverse link channel and a second reverse link channel, each with a higher coding gain than that of the single-channel reverse link, to provide an aggregate data rate that is substantially the same as that of the single-channel reverse link.
摘要翻译： 移动台和无线电接入网（RAN）使用单信道前向链路和用于通信会话的单信道反向链路。 如果通信会话的质量下降，则单信道正向链路被多信道正向链路替代，和/或单信道反向链路被多信道反向链路替代。 多信道正向链路可以包括第一前向链路信道和第二前向链路信道，每个信道具有比单信道前向链路更高的编码增益，以提供与 单通道前向链路。 多信道反向链路可以包括第一反向链路信道和第二反向链路信道，每个具有比单信道反向链路的编码增益更高的编码增益，以提供与基本相同的聚合数据速率， 单通道反向链路。
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17.发明授权Identifying and selectively controlling reverse-noise contribution on a per-access-terminal basis 有权在每个接入终端的基础上识别和选择性地控制反向噪声贡献公开(公告)号：US08537700B1
公开(公告)日：2013-09-17
申请号：US12763206
申请日：2010-04-19
IPC分类号： H04L1/00
CPC分类号： H04W52/243 , H04B17/345 , H04W52/146
摘要： Methods and apparatuses are provided for identifying and selectively controlling reverse-noise contribution on a per-access terminal basis. In an embodiment, an access node provides wireless service to access terminals, and measures reverse noise rise (RNR) during at least one turn of a round-robin process involving access terminals taking turns transmitting data or taking turns not transmitting data. The access node thereby determines a respective RNR contribution of at least one access terminal based at least on the measurement of RNR taken during the access terminals' turns. A high-contributor set of one or more access terminals is identified and then instructed to reduce reverse-link transmission power.
摘要翻译： 提供了用于在每个接入终端的基础上识别和选择性地控制反向噪声贡献的方法和装置。 在一个实施例中，接入节点向接入终端提供无线服务，并且在涉及接入终端轮流发送数据或轮流不发送数据的循环过程的至少一次转弯期间测量反向噪声上升（RNR）。 因此，接入节点至少基于在接入终端的转弯期间采取的RNR的测量来确定至少一个接入终端的相应RNR贡献。 识别一个或多个接入终端的高贡献者组，然后指示减少反向链路传输功率。
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公开(公告)号：US08483726B1
公开(公告)日：2013-07-09
申请号：US12578114
申请日：2009-10-13
IPC分类号： H04W68/00
CPC分类号： H04W68/02
摘要： Disclosed are methods for determining which page attempt to shed. In accordance with these methods, when a page attempt from a first sequence directed to a first access terminal (AT) contends with a page attempt from a second sequence directed to a second AT for transmission over the air interface of a RAN, the RAN determines which sequence has been shed to a greater extent. The RAN then transmits the page attempt from the sequence that has been shed to a greater extent and sheds the page attempt from the sequence that has been shed to a lesser extent. The methods advantageously help to avoid one sequence of page attempts being disproportionately shed.
摘要翻译： 公开了确定哪个页面尝试脱落的方法。 根据这些方法，当从指向第一接入终端（AT）的第一序列的寻呼尝试与来自定向到第二AT的第二序列的寻呼尝试相抵触，以在RAN的空中接口上传输时，RAN确定 哪个序列已经被更多的减少了。 然后，RAN从已经流出的序列发送页面尝试到更大的程度，并且从已经流式化的序列中减少寻呼尝试。 这些方法有利地有助于避免一连串的页面尝试被不成比例地流失。
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公开(公告)号：US08121596B1
公开(公告)日：2012-02-21
申请号：US12724650
申请日：2010-03-16
IPC分类号： H04W8/00
CPC分类号： H04W48/16 , H04W24/02 , Y02D70/00 , Y02D70/1224 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/164
摘要： Exemplary methods and systems are disclosed that may help a mobile station to conserve power by reducing the number of active sectors being scanned in certain scenarios. An exemplary method involves a mobile station (a) initially operating in a first scanning mode, wherein operation in the first scanning mode comprises the mobile station scanning all sectors in an active set comprising a plurality of sectors; (b) determining signal strength of each sector in the active set; (c) selecting, from the active set, one or more transparent sectors having the lowest signal strengths relative to the other sectors in the active set; and (d) operating in a second scanning mode, wherein operation in the second scanning mode comprises the mobile station scanning a subset of the sectors in the active set, wherein the subset excludes the one or more transparent sectors.
摘要翻译： 公开了可以帮助移动台通过减少在某些情况下扫描的活动扇区的数量来节省功率的示例性方法和系统。 一种示例性方法包括移动台（a）最初以第一扫描模式操作，其中第一扫描模式中的操作包括移动台扫描包括多个扇区的活动集中的所有扇区; （b）确定有效集合中每个扇区的信号强度; （c）从所述有源集合中选择具有相对于所述有效集合中的其他扇区具有最低信号强度的一个或多个透明扇区; 和（d）以第二扫描模式操作，其中在所述第二扫描模式中的操作包括所述移动台扫描所述活动集中的扇区的子集，其中所述子集排除所述一个或多个透明扇区。
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20.发明授权Method and apparatus for dynamically varying interval on first air interface protocol based on switch-away time for scanning second air interface protocol 有权基于用于扫描第二空中接口协议的切换时间来动态地改变第一空中接口协议间隔的方法和装置公开(公告)号：US08060133B1
公开(公告)日：2011-11-15
申请号：US12401998
申请日：2009-03-11
IPC分类号： H04M1/00
CPC分类号： H04W52/0225 , H04W48/10 , H04W76/28 , H04W88/06 , Y02D70/1224 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146
摘要： Disclosed is a method and apparatus for dynamically varying the amount of time a hybrid access terminal operates on a first air interface protocol between instances of temporarily switching over to scan a second air interface protocol for broadcast information such as network operational parameters or page messages. The hybrid access terminal dynamically sets a minimum interval of operation on the first air interface protocol based on how long the access terminal has tended to be temporarily switched away to scan for broadcast information on the second air interface protocol. For example, as the switch-away time increases, the access terminal may increase the interval on the first air interface protocol, and as the switch-away time decreases, the access terminal may decrease the interval on the first air interface protocol.
摘要翻译： 公开了一种方法和装置，用于动态地改变混合接入终端在暂时切换以扫描第二空中接口协议之间的第一空中接口协议上的时间量，用于广播信息，例如网络操作参数或寻呼消息。 混合接入终端基于接入终端倾向于临时切换多长时间来动态地设置第一空中接口协议上的最小操作间隔，以扫描第二空中接口协议上的广播信息。 例如，当切换时间增加时，接入终端可以增加第一空中接口协议的间隔，并且随着切换时间的减少，接入终端可以减小第一空中接口协议的间隔。
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