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公开(公告)号：US20090010224A1
公开(公告)日：2009-01-08
申请号：US12050746
申请日：2008-03-18
IPC分类号： H04Q7/20
CPC分类号： H04W36/30
摘要： Channel dependent credit accumulation for determining a mobile handover is provided herein. In some aspects, a characteristic(s) of a source channel(s) serving a mobile device and of one or more target channels can be evaluated. Magnitudes of the evaluated characteristics can be utilized to generate handover credits associated with the target channel(s) (e.g., based on some function of a difference in the magnitudes). If a concurrent number of credits associated with a target channel equals or rises above one or more threshold levels, a mobile device can initiate a handover. As described, disparity in source and target channel quality, signal strength, etc., can be determined to increase probability of a handover based on channel degradation over one or more time intervals.
摘要翻译： 本文提供了用于确定移动切换的信道相关信用累积。 在一些方面，可评估服务于移动设备和一个或多个目标信道的源信道的特性。 评估特征的幅度可用于产生与目标信道相关联的切换信用（例如，基于幅度差的一些函数）。 如果与目标信道相关联的并发数量的信用等于或高于一个或多个阈值水平，则移动设备可发起切换。 如上所述，可以确定源和目标信道质量，信号强度等的差异，以增加在一个或多个时间间隔上基于信道劣化的切换的概率。
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公开(公告)号：US20080225796A1
公开(公告)日：2008-09-18
申请号：US12048913
申请日：2008-03-14
IPC分类号： H04Q7/00
CPC分类号： H04W56/0045 , H04L5/0048 , H04W36/08 , H04W72/1284
摘要： Systems and methodologies are described that facilitate handing over mobile device communications in a wireless network from a source base station to a target base station without using a random access channel (RACH). In this regard, the mobile device can monitor multiple base stations determining timing information related thereto and access scheduling request channels for the base stations. When ready for handover, the mobile device can request data resources over the scheduling request channel using the appropriate timing information.
摘要翻译： 描述了有助于将无线网络中的移动设备通信从源基站切换到目标基站而不使用随机接入信道（RACH）的系统和方法。 在这方面，移动设备可以监视多个基站确定与之相关的定时信息并访问基站的调度请求信道。 当准备切换时，移动设备可以使用适当的定时信息通过调度请求信道请求数据资源。
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公开(公告)号：US20080186892A1
公开(公告)日：2008-08-07
申请号：US12024849
申请日：2008-02-01
IPC分类号： G08C17/02
CPC分类号： H04W52/0216 , H04W52/44 , H04W76/28 , Y02D70/1222 , Y02D70/1224 , Y02D70/1226 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/23 , Y02D70/24 , Y02D70/25
摘要： A data traffic responsive battery-saving approach for a wireless user equipment (UE) device such as an data packet capable cellphone incorporates flexible discontinuous transmission and reception (DTX-DRX) when in Long Term Evolution (LTE) active mode as dictated by an evolved radio access network (RAN) such as an evolved base node (eNode B). A UE device requests are made on unsynchronized random access channel (RACH). Lengthening a duration of DRX and reducing requirements for synchronization uplink transmissions results in power savings of up to 75%, as well as creating opportunities for reducing interference and for allocating additional time slots for data. This power savings is compatible with other downlink scheduling proposals, with control channel-less Voice-over-IP (VoIP), and need not target those UE devices in bad radio conditions. Legacy UE devices that can interact with the eNode B by being capable of radio resource control (RRC) signaling continue to be compatible.
摘要翻译： 对于诸如具有数据分组的蜂窝电话之类的无线用户设备（UE）设备的数据业务响应电池节省方法，在长期演进（LTE）活动模式中包含灵活的不连续传输和接收（DTX-DRX），如由演进 诸如演进基地节点（eNode B）之类的无线电接入网络（RAN）。 在不同步的随机接入信道（RACH）上进行UE设备请求。 延长DRX的持续时间并减少对同步上行链路传输的要求，可节省高达75％的功率，同时为减少干扰和为数据分配额外的时隙创造机会。 这种省电与其他下行链路调度提议兼容，具有无通道控制的IP语音（VoIP），并且不需要在不良无线电条件下对准那些UE设备。 能够通过无线电资源控制（RRC）信令能够与eNode B交互的传统UE设备继续兼容。
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公开(公告)号：US20070104253A1
公开(公告)日：2007-05-10
申请号：US11492605
申请日：2006-07-24
申请人： Tao Luo , Aleksandar Damnjanovic , Durga Malladi
发明人： Tao Luo , Aleksandar Damnjanovic , Durga Malladi
IPC分类号： H04B1/00
CPC分类号： H04L25/0202 , H04B1/71072 , H04L25/0224 , H04L25/0226 , H04L25/0238
摘要： Techniques for deriving channel estimates with different channel estimation filters are described. In one scheme, a filter selection metric is determined for a signal to be recovered, a channel estimation filter is selected based on the filter selection metric, and a channel estimate is derived with the selected channel estimation filter. In another scheme, a first channel estimate is derived with a first channel estimation filter having a first filter response, a first signal is recovered with the first channel estimate, and interference due to the first signal is estimated and removed. A second channel estimate is derived with a second channel estimation filter having a second filter response that is different from the first filter response.
摘要翻译： 描述了使用不同信道估计滤波器导出信道估计的技术。 在一个方案中，为要恢复的信号确定滤波器选择度量，基于滤波器选择度量来选择信道估计滤波器，并且使用所选择的信道估计滤波器导出信道估计。 在另一方案中，利用具有第一滤波器响应的第一信道估计滤波器导出第一信道估计，用第一信道估计恢复第一信号，并且估计和去除由于第一信号引起的干扰。 使用具有与第一滤波器响应不同的第二滤波器响应的第二信道估计滤波器导出第二信道估计。
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公开(公告)号：US20050041618A1
公开(公告)日：2005-02-24
申请号：US10781285
申请日：2004-02-17
申请人： Yongbin Wei , Edward Tiedemann , Peter Gaal , Durga Malladi , David Oses , Sandip Sarkar , Stein Lundby , Tao Chen , Avinash Jain , Aleksandar Damnjanovic , Serge Willenegger
发明人： Yongbin Wei , Edward Tiedemann , Peter Gaal , Durga Malladi , David Oses , Sandip Sarkar , Stein Lundby , Tao Chen , Avinash Jain , Aleksandar Damnjanovic , Serge Willenegger
IPC分类号： H04B7/26 , H04L1/00 , H04L1/16 , H04L1/18 , H04L12/56 , H04W28/04 , H04W28/22 , H04W72/14 , H04Q7/00
CPC分类号： H04W28/22 , H04B7/264 , H04L1/0026 , H04L1/1671 , H04L1/1819 , H04W72/1289
摘要： Embodiments disclosed herein address the need in the art for an extended acknowledgment/rate control channel. In one aspect, an acknowledgment command and a rate control command are combined to form a combined command. In another aspect, the combined command is generated in accordance with a constellation of points, each point corresponding to a pair consisting of a rate control command and an acknowledgment command. In yet another aspect, the points of the constellation are designed to provide the desired probability of error for the respective command pairs. In yet another aspect, a common rate control command is transmitted along with a combined or dedicated rate control command. Various other aspects are also presented. These aspects have the benefit of reduced overhead while providing acknowledgment and rate control to single remote stations and/or groups of remote stations.
摘要翻译： 本文公开的实施例解决了本领域对扩展确认/速率控制信道的需要。 在一个方面，将确认命令和速率控制命令组合以形成组合命令。 在另一方面，组合命令根据点的星座生成，每个点对应于由速率控制命令和确认命令组成的对。 在另一方面，星座的点被设计成为各个命令对提供期望的误差概率。 在另一方面，公共速率控制命令与组合或专用速率控制命令一起发送。 还提出了各种其他方面。 这些方面具有减少开销的优点，同时向单个远程站和/或远程站组提供确认和速率控制。
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公开(公告)号：US06597923B1
公开(公告)日：2003-07-22
申请号：US09695394
申请日：2000-10-23
IPC分类号： H04Q720
摘要： The invention includes a device and method for improving the responsiveness of the transmitter power control function so that the transmission power is more quickly and accurately controlled over a wider range of dynamic power adjustment during transmission. The present invention is directed to a dynamic transmission power control device and methodology having improved power control loop bandwidth and low power control loop variance. The invention is particularly useful for wireless communications, and more particularly to wireless digital devices having signals with large information frame size and low target frame error rate (FER). The dynamic transmission power control methodology includes a receiver including multiple power control loops for dynamically determining the amount of adjustment to make to the incoming transmission signal to achieve a desired level of signal quality at the lowest possible transmission power. For example, two power control adjustment loops, for example an outer loop and an outer-outer loop, may be provided for determining a target signal to noise ratio (SNR). The receiver may also include an inner loop. In one preferred embodiment, the transmitter may use turbo coding decoded using an iterative decoder for forward error correction. In one variation, the turbo coding is used on the forward supplemental channel (F-SCH).
摘要翻译： 本发明包括一种用于改善发射机功率控制功能的响应性的装置和方法，使得在传输期间在更大范围的动态功率调整上更快速和准确地控制发射功率。 本发明涉及具有改进的功率控制环路带宽和低功率控制环路方差的动态发射功率控制装置和方法。 本发明对于无线通信特别有用，更具体地说涉及具有信息帧大小和目标帧错误率（FER）低的信号的无线数字设备。 动态发射功率控制方法包括：接收机，包括多个功率控制回路，用于动态地确定对输入的传输信号进行调整的量，以便以最低的可能传输功率实现期望的信号质量水平。 例如，可以提供两个功率控制调节环路，例如外部环路和外部外部环路，用于确定目标信噪比（SNR）。 接收器还可以包括内环。 在一个优选实施例中，发射机可以使用使用用于前向纠错的迭代解码器解码的turbo编码。 在一个变型中，在前向补充信道（F-SCH）上使用turbo编码。
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公开(公告)号：US20230246756A1
公开(公告)日：2023-08-03
申请号：US18001376
申请日：2020-08-24
申请人： Mostafa Khoshnevisan , Aleksandar Damnjanovic , Xiaoxia Zhang , Tao Luo , Jing Sun , Fang Yuan , Yitao Chen , Juan Montojo , Rajat Prakash , QUALCOMM Incorporated
发明人： Mostafa Khoshnevisan , Aleksandar Damnjanovic , Xiaoxia Zhang , Tao Luo , Jing Sun , Fang Yuan , Yitao Chen , Juan Montojo , Rajat Prakash
CPC分类号： H04L5/0035 , H04W8/22 , H04L5/0091
摘要： Downlink schemes are disclosed for a cooperative user equipment (UE) with joint baseband processing. UEs may establish a cooperative UE unit with one or more neighboring UEs, where one of the UEs operates as the primary UE. The participating UEs of the cooperative UE unit determine a downlink transmission scheme for the cooperative transmissions from a serving base station and receive cooperative transmissions of one or more transport blocks from the serving base station according to the downlink transmission scheme. The secondary UEs of the cooperative UE unit generate and transmit cooperative process data to the primary UE, where the cooperative process data is based on the receipt of the cooperative transmissions by the secondary UEs. The primary UE processes its received cooperative transmission along with the cooperative process data to decode the one or more transport blocks. Other aspects and features are also claimed and described.
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68.发明授权公开(公告)号：US10517098B2
公开(公告)日：2019-12-24
申请号：US13188146
申请日：2011-07-21
申请人： Stefan Geirhofer , Naga Bhushan , Ravi Palanki , Jaber Mohammad Borran , Aleksandar Damnjanovic
发明人： Stefan Geirhofer , Naga Bhushan , Ravi Palanki , Jaber Mohammad Borran , Aleksandar Damnjanovic
摘要： Techniques for supporting peer-to-peer (P2P) communication in a wide area network (WAN) are disclosed. In an aspect, interference coordination between P2P devices engaged in P2P communication and WAN devices engaged in WAN communication may be performed based on a network-controlled architecture. For the network-controlled architecture, P2P devices may detect other P2P devices and/or WAN devices and may send measurements (e.g., for pathloss, interference, etc.) for the detected devices to the WAN (e.g., serving base stations). The WAN may perform resource partitioning and/or association for the P2P devices based on the measurements. Association may include selection of P2P communication or WAN communication for a given P2P device. Resource partitioning may include allocation of resources to a group of P2P devices for P2P communication. The WAN may send the results of association and/or resource partitioning to the P2P devices, which may communicate in accordance with the association and/or resource partitioning results.
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69.发明授权公开(公告)号：US09232537B2
公开(公告)日：2016-01-05
申请号：US11671997
申请日：2007-02-06
CPC分类号： H04W74/004 , H04L5/0007 , H04W28/24 , H04W52/50 , H04W74/008 , H04W74/0833 , H04W74/0866
摘要： Systems and methodologies are described that facilitate a fast access in a wireless communication system, such as OFDMA. According to various aspects, the system and methods are described for generating an access probe comprising an access signature having quality of service information and transmitting the access probe on a random access channel. Also, the system and methods of receiving an access probe, the access probe comprising quality of service information, generating an access grant in response to the receive access probe, addressing the access grant using information from the access probe, and transmitting the access grant.
摘要翻译： 描述了促进诸如OFDMA的无线通信系统中的快速接入的系统和方法。 根据各方面，描述了用于生成包括具有服务质量信息的访问签名并在随机访问信道上发送访问探针的访问探针的系统和方法。 此外，接收探测器的系统和方法，接入探测器包括服务质量信息，响应于接收接入探测器生成接入许可，使用来自接入探测器的信息寻址接入许可，以及发送接入许可。
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70.发明授权公开(公告)号：US09124406B2
公开(公告)日：2015-09-01
申请号：US12976818
申请日：2010-12-22
CPC分类号： H04L5/0091 , H04L5/0053
摘要： Techniques for supporting fallback operation in a multi-carrier communication system are described. In one aspect, a UE may determine at least one first downlink control information (DCI) format to monitor on a first carrier. The UE may monitor for the first DCI format(s) on the first carrier to detect DCI sent to the UE. The UE may receive a reconfiguration message related to communication on a plurality of carriers by the UE with cross-carrier signaling, and may determine at least one second DCI format to monitor on the first carrier based on the reconfiguration message. The UE may monitor for the first DCI format(s) and the second DCI format(s) on the first carrier after receiving the reconfiguration message.
摘要翻译： 描述了用于支持多载波通信系统中的回退操作的技术。 一方面，UE可以确定在第一载波上监视的至少一个第一下行链路控制信息（DCI）格式。 UE可以监视第一载波上的第一DCI格式，以检测发送给UE的DCI。 UE可以接收与具有跨载波信令的UE在多个载波上的通信相关的重配置消息，并且可以基于重新配置消息确定至少一个第二DCI格式来监视第一载波。 在接收到重新配置消息之后，UE可以监视第一载波上的第一DCI格式和第二DCI格式。
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