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公开(公告)号：US08644841B1
公开(公告)日：2014-02-04
申请号：US13039725
申请日：2011-03-03
CPC分类号： H04W28/08 , H04W36/0083 , H04W36/04 , H04W36/22
摘要： A method and system is disclosed for dynamically adjusting a signal-to-noise (SNR) bias based on relative load between a macro type base station and a micro type base station of a wireless communication system. The SNR bias corresponds to a threshold differential SNR between SNRs of the macro base station and of the micro base station, wherein the SNR bias is configured to be provided to an access terminal (or user equipment) to cause the access terminal (i) to be biased to seek service from the micro base station if the access terminal detects an SNR from the micro base station that is less than the threshold differential SNR below an SNR that the access terminal detects from the macro base station, and (ii) to be biased to seek service from the macro base station otherwise. Once the SNR bias is determined based on the relative load, it is communicated to one or more access terminals.
摘要翻译： 公开了一种基于无线通信系统的宏型基站和微型基站之间的相对负载来动态地调整信噪比（SNR）偏差的方法和系统。 SNR偏差对应于宏基站和微基站的SNR之间的阈值差分SNR，其中SNR偏置被配置为提供给接入终端（或用户设备）以使接入终端（i） 如果接入终端从微基站检测到小于阈值差分SNR的信噪比低于接入终端从宏基站检测到的SNR，则被偏向于从微基站寻求服务，以及（ii）为 偏向于从宏基站寻求服务。 一旦基于相对负载确定SNR偏差，则将其传送到一个或多个接入终端。
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公开(公告)号：US08509145B1
公开(公告)日：2013-08-13
申请号：US11961664
申请日：2007-12-20
CPC分类号： H04J13/0022 , H04B2001/70724 , H04W36/0083
摘要： A first serving system controls a first group of sectors that transmit pilot signals having pseudonoise (PN) offsets corresponding to a first PN increment, and a second serving system controls a second group of sectors that transmit pilot signals having PN offsets corresponding to a second PN increment. The first serving system serves a mobile station via a sector in the first group and determines that the mobile station is likely to be in a communication range of at least one sector in the second group. In response, the first serving system instructs the mobile station to use the second PN increment when scanning for pilot signals. Thereafter, the mobile station may use the first PN increment to scan for pilot signals to add to its remaining set and, if the remaining set is not large enough, may then use the second PN increment to scan for additional pilot signals.
摘要翻译： 第一服务系统控制发送具有对应于第一PN增量的伪噪声（PN）偏移的导频信号的第一组扇区，并且第二服务系统控制发送具有对应于第二PN的PN偏移的导频信号的第二组扇区 增量。 第一服务系统经由第一组中的扇区服务于移动站，并且确定移动站可能处于第二组中的至少一个扇区的通信范围。 作为响应，当扫描导频信号时，第一服务系统指示移动台使用第二PN增量。 此后，移动站可以使用第一PN增量来扫描导频信号以添加到其剩余集合，并且如果剩余集合不够大，则可以使用第二PN增量来扫描附加导频信号。
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公开(公告)号：US08391872B1
公开(公告)日：2013-03-05
申请号：US11779023
申请日：2007-07-17
IPC分类号： H04W36/00
CPC分类号： H04W36/30
摘要： A method and system for using call drop and re-origination data to trigger handoff of wireless communication devices. Handoff trigger data is established in response to detecting that at least one mobile station experienced a call drop and then quickly re-originated on a sector that was not included in the mobile station's active set at the time of the call drop. The handoff trigger data correlates a location where the call drop occurred with the sector on which re-origination occurred. When another mobile station is thereafter engaged in a call at or near that location and does not have the sector in its active set, a serving radio access network may direct the mobile station to handoff to the sector, in an effort to prevent a call drop.
摘要翻译： 一种用于使用呼叫丢弃和重发数据来触发无线通信设备切换的方法和系统。 响应于检测到至少一个移动台经历呼叫丢弃，然后在呼叫下降时未被包括在移动台的活动集中的扇区上快速重新发起，建立越区切换触发数据。 切换触发数据将呼叫发生的位置与发生重新发起的扇区相关联。 当另一移动台此后在该位置处或附近进行呼叫并且不具有其活动集中的扇区时，服务无线电接入网络可以指示移动台切换到扇区，以防止呼叫掉落 。
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64.发明授权Method and system for adaptive hybrid automatic repeat request protocols based on network conditions 有权基于网络条件的自适应混合自动重传请求协议的方法和系统公开(公告)号：US07978626B1
公开(公告)日：2011-07-12
申请号：US12352952
申请日：2009-01-13
申请人： Bhagwan Khanka , Manoj Shetty , Siddharth S. Oroskar , Jasinder P. Singh , Sachin R. Vargantwar
发明人： Bhagwan Khanka , Manoj Shetty , Siddharth S. Oroskar , Jasinder P. Singh , Sachin R. Vargantwar
IPC分类号： H04J1/16
CPC分类号： H04L1/1854 , H04L1/1635 , H04L1/1812
摘要： Methods and systems for adaptive hybrid automatic repeat request (H-ARQ) protocols are disclosed. The protocols preferably adapt to changing network conditions between a client node and an access node by omitting the transmission of certain messages when network conditions are determined to be favorable. In doing so, packets are processed faster, thus reducing communication latency as well as the memory requirements of the protocols. One scenario in which the protocols may operate is where the client node is a wireless communication device coupled to the access node via a wireless network. In such a scenario, the access node may, from time to time, measure a quality of the wireless air interface between the client node and the access node, and determine whether to transmit an acknowledgement message based on the outcome of the measurement as compared to a threshold value.
摘要翻译： 公开了自适应混合自动重传请求（H-ARQ）协议的方法和系统。 当网络条件被确定为有利时，协议优选地适应于在客户端节点和接入节点之间改变的网络条件，通过省略某些消息的传输。 在这样做时，数据包被更快地处理，从而减少通信延迟以及协议的存储器要求。 协议可以操作的一种情况是客户端节点是经由无线网络耦合到接入节点的无线通信设备。 在这种情况下，接入节点可以不时地测量客户端节点和接入节点之间的无线空中接口的质量，并且基于测量的结果来确定是否发送确认消息，与 一个阈值。
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65.发明授权Dynamically transferring between multiple-input and multiple-output (MIMO) transmit modes based on a usage level of a wireless access node 有权基于无线接入节点的使用级别，在多输入和多输出（MIMO）发射模式之间动态传送公开(公告)号：US08934499B1
公开(公告)日：2015-01-13
申请号：US13035778
申请日：2011-02-25
CPC分类号： H04B7/0686 , H04B7/0413
摘要： Embodiments disclosed herein provide systems and methods for dynamically transferring between multiple-input and multiple-output (MIMO) transmit modes based on a usage level of a wireless access node. In a particular embodiment, a method provides transferring wireless communications to a wireless communication device via a plurality of ports in a wireless access node on a wireless communication network. The method further provides determining an access node usage level for the wireless access node. If the access node usage level satisfies a condition for access node usage, the method provides configuring the plurality of ports to use a MIMO 2 transmit-2 carrier mode for transmitting the wireless communications. If the access node usage level does not satisfy the condition for access node usage, the method provides configuring the plurality of ports to use a MIMO 4 transmit-1 carrier mode for transmitting the wireless communications.
摘要翻译： 本文公开的实施例提供了用于基于无线接入节点的使用级别在多输入和多输出（MIMO）传输模式之间动态传送的系统和方法。 在特定实施例中，一种方法通过无线通信网络上的无线接入节点中的多个端口向无线通信设备传送无线通信。 该方法还提供确定无线接入节点的接入节点使用水平。 如果接入节点使用度满足接入节点使用的条件，则该方法提供配置多个端口以使用MIMO 2发射2载波模式来发送无线通信。 如果接入节点使用级别不满足接入节点使用的条件，则该方法提供配置多个端口以使用MIMO 4发射1载波模式来发送无线通信。
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公开(公告)号：US08830848B1
公开(公告)日：2014-09-09
申请号：US12963714
申请日：2010-12-09
CPC分类号： H04W68/005 , H04W76/30
摘要： Systems and methods are disclosed herein for adjusting a control channel timer based on control communication traffic on a control channel. In a particular embodiment, a method provides exchanging data packets with a wireless network over a wireless traffic channel assigned to a wireless device. The method further provides monitoring control communications from the wireless network over a wireless control channel and adjusting a control channel timer that indicates a time period that the wireless device should continue to monitor the control communications based on a level of control communication traffic. The method further provides releasing the assigned traffic channel in response to the expiration of a dormancy timer. In response to the release of the traffic channel, the method provides starting the control channel timer. In response to the expiration of the control channel timer, the method provides stopping the monitoring of the control communication traffic.
摘要翻译： 本文公开的系统和方法用于基于控制信道上的控制通信业务来调整控制信道定时器。 在特定实施例中，一种方法提供通过分配给无线设备的无线业务信道与无线网络交换数据分组。 该方法还通过无线控制信道提供来自无线网络的监视控制通信，并且调整控制信道定时器，其指示基于控制通信业务量的无线设备应该继续监视控制通信的时间段。 该方法进一步提供响应于休眠定时器的到期而释放分配的业务信道。 响应于业务信道的释放，该方法提供启动控制信道定时器。 响应于控制信道定时器的到期，该方法提供停止对控制通信业务的监控。
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67.发明授权Method and system for selecting cyclic prefix length based on signal quality reports 有权基于信号质量报告选择循环前缀长度的方法和系统公开(公告)号：US08422577B1
公开(公告)日：2013-04-16
申请号：US13072420
申请日：2011-03-25
CPC分类号： H04L1/0006 , H04L1/0026 , H04L27/2607 , H04L27/2646
摘要： During a first time interval, an access point transmits orthogonal frequency division multiplexing (OFDM) signals using a first cyclic prefix length. The access point receives a plurality of signal reports, such as Channel Quality Indicators (CQIs), from user devices being served by the access point. Based on the signal reports, the access point determines a distribution of signal qualities experienced by the user devices. The access point selects a second cyclic prefix length based, at least in part, on the distribution of signal qualities. The access point transmits OFDM signals using the second cyclic prefix length during a second time interval.
摘要翻译： 在第一时间间隔期间，接入点使用第一循环前缀长度发送正交频分复用（OFDM）信号。 接入点从由接入点服务的用户设备接收多个信号报告，例如信道质量指示符（CQI）。 基于信号报告，接入点确定用户设备经历的信号质量的分布。 接入点至少部分地基于信号质量的分布来选择第二循环前缀长度。 接入点在第二时间间隔期间使用第二循环前缀长度发送OFDM信号。
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68.发明授权公开(公告)号：US08412258B1
公开(公告)日：2013-04-02
申请号：US13478315
申请日：2012-05-23
IPC分类号： H04B7/00
CPC分类号： H04W52/12 , H04W52/20 , H04W52/362 , H04W52/545
摘要： Methods and systems for adjusting a transmit power of a forward link or reverse link signal make use of variable adjustment parameters. The wireless signal is received to obtain a received signal. An observed signal-to-noise ratio (SNR) and an observed frame error rate (FER) for the received signal are determined. In an outer loop process, an adjustment increment is selected based on how much the observed FER differs from the target FER, and the target SNR is adjusted by the adjustment increment. In an inner loop process, a power adjustment command is selected based on a comparison between the observed SNR and a target SNR. The power adjustment command instructs the transmitter of the wireless signal to either increase or decrease the transmit power of the wireless signal. The power adjustment increment may also depend on the observed FER.
摘要翻译： 用于调整前向链路或反向链路信号的发射功率的方法和系统使用可变调整参数。 接收无线信号以获得接收信号。 确定接收信号的观测信噪比（SNR）和观测帧误码率（FER）。 在外环过程中，基于观测到的FER与目标FER不同，选择调整增量，并且通过调整增量来调整目标SNR。 在内循环过程中，基于观察到的SNR和目标SNR之间的比较来选择功率调整命令。 功率调整命令指示无线信号的发射机增加或减少无线信号的发射功率。 功率调节增量也可能取决于观察到的FER。
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69.发明授权Method for use of azimuth and bearing data to select a serving sector for a mobile station 有权使用方位角和方位数据来选择移动台的服务扇区的方法公开(公告)号：US08045526B2
公开(公告)日：2011-10-25
申请号：US12951736
申请日：2010-11-22
申请人： Sachin R. Vargantwar , Ashvini G. Canjeevaram , Manoj Shetty , Siddharth S. Oroskar , DeveshKumar N. Rai
发明人： Sachin R. Vargantwar , Ashvini G. Canjeevaram , Manoj Shetty , Siddharth S. Oroskar , DeveshKumar N. Rai
IPC分类号： H04W4/00
CPC分类号： H04W36/32
摘要： A method for selecting a wireless coverage sector to serve a mobile station, such as in response to a handoff request that designates a sector-identifier that represents two or more possible sectors. A serving radio access network (RAN) may identify potential sectors in the region and may then select the sector whose azimuth is closest to the geographic bearing of the mobile station from the sector's base station. Further, in the event of a tie between two or more sectors or in other circumstances, the RAN may also take into consideration how close the mobile station is to various base stations, such as selecting the sector to whose base station the mobile station is closest. In a system that uses neighbor lists to govern handoff, the invention can help to facilitate handoff in a scenario where a mobile station requests handoff to a sector not listed in the mobile station's neighbor list.
摘要翻译： 一种用于选择无线覆盖区域以服务移动站的方法，诸如响应于指定表示两个或更多个可能扇区的扇区标识符的切换请求。 服务无线电接入网络（RAN）可以识别该区域中的潜在扇区，然后可以从扇区的基站中选择方位最接近移动台的地理方位的扇区。 此外，在两个或多个扇区之间或其他情况下，RAN还可以考虑移动台到各种基站的距离，例如选择移动站最接近的基站的扇区 。 在使用邻居列表来管理切换的系统中，本发明可以帮助在移动台向移动台的邻居列表中未列出的扇区请求切换的场景中促成切换。
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公开(公告)号：US08527009B1
公开(公告)日：2013-09-03
申请号：US12954150
申请日：2010-11-24
IPC分类号： H04M1/00
CPC分类号： H04M1/72544 , H04M1/72519
摘要： Methods, systems, and computer-readable media are provided for presenting coverage bars on a mobile device based on available telecommunications signals. In particular, a mobile device is associated with a plurality of telecommunications signals. Further, the telecommunications signals associated with the mobile device are assessed based on signal strength. A determination is made as to the relative strength of one telecommunications technology over another. Additionally, identifiers of the telecommunications signals are presented on a screen of the mobile device.
摘要翻译： 提供了方法，系统和计算机可读介质，用于基于可用的电信信号在移动设备上呈现覆盖条。 具体地，移动设备与多个电信信号相关联。 此外，基于信号强度来评估与移动设备相关联的电信信号。 确定一种电信技术相对于另一种电信技术的相对实力。 此外，电信信号的标识符被呈现在移动设备的屏幕上。
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