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公开(公告)号：US20080020768A1
公开(公告)日：2008-01-24
申请号：US11828333
申请日：2007-07-25
IPC分类号： H04Q7/20
CPC分类号： H04W36/28 , H04W36/30 , H04W72/085
摘要： Systems and methodologies are described that facilitate monitoring RF channels in a wireless communication environment to determine whether one or more channels comprise a forward-link-only (FLO) signal. A receiver can receive a first RF channel with a FLO signal and can monitor other RF channels for FLO signals. Upon a determination that a monitored RF channel comprises a FLO signal, the receiver can switch between the first RF channel and the monitored RF channel, employing information on current MLC decoding status, to facilitate providing seamless reception of the FLO signal, which can be superframe synchronized between RF channels. FLO signal detection can be performed using one or more of a wide-area identification channel energy detection protocol and a wide-area overhead information symbol decoding error detection protocol.
摘要翻译： 描述了便于在无线通信环境中监视RF信道以确定一个或多个信道是包括仅前向链路（FLO）信号的系统和方法。 接收机可以接收具有FLO信号的第一RF信道，并且可以监视FLO信号的其他RF信道。 在确定被监视的RF信道包括FLO信号之后，接收机可以使用关于当前MLC解码状态的信息在第一RF信道和被监控的RF信道之间切换，以便于提供FLO信号的无缝接收，其可以是超帧 在RF信道之间同步。 可以使用广域识别信道能量检测协议和广域开销信息符号解码错误检测协议中的一个或多个来执行FLO信号检测。
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52.发明申请Frame structures for a wireless communication system with multiple radio technologies 有权具有多种无线电技术的无线通信系统的帧结构公开(公告)号：US20060018279A1
公开(公告)日：2006-01-26
申请号：US11144208
申请日：2005-06-02
IPC分类号： H04Q7/00
CPC分类号： H04W88/10 , H04B7/2656 , H04L1/0083 , H04L5/14 , H04L27/2602 , H04W92/10 , Y02D70/1222 , Y02D70/1242 , Y02D70/1244 , Y02D70/21 , Y02D70/449
摘要： Frame structures and transmission techniques for a wireless communication system are described. In one frame structure, a super-frame includes multiple outer-frames, and each outer-frame includes multiple frames, and each frame includes multiple time slots. The time slots in each super-frame are allocated for downlink and uplink and for different radio technologies (e.g., W-CDMA and OFDM) based on loading. Each physical channel is allocated at least one time slot in at least one frame of each outer-frame in the super-frame. An OFDM waveform is generated for each downlink OFDM slot and multiplexed onto the slot. A W-CDMA waveform is generated for each downlink W-CDMA slot and multiplexed onto the slot. A modulated signal is generated for the multiplexed W-CDMA and OFDM waveforms and transmitted on the downlink. Each physical channel is transmitted in bursts. The slot allocation and coding and modulation for each physical channel can change for each super-frame.
摘要翻译： 描述了用于无线通信系统的帧结构和传输技术。 在一帧结构中，超帧包括多个外帧，并且每个外帧包括多个帧，并且每个帧包括多个时隙。 基于加载，为每个超帧中的时隙分配给下行链路和上行链路以及不同的无线电技术（例如，W-CDMA和OFDM）。 每个物理信道在超帧中的每个外帧的至少一个帧中分配至少一个时隙。 为每个下行OFDM时隙生成OFDM波形并复用到时隙上。 为每个下行链路W-CDMA时隙产生W-CDMA波形并复用到该时隙上。 为多路复用的W-CDMA和OFDM波形生成调制信号并在下行链路上发送。 每个物理信道以突发方式传输。 每个物理信道的时隙分配和编码和调制可以针对每个超帧而改变。
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53.发明申请公开(公告)号：US20060013168A1
公开(公告)日：2006-01-19
申请号：US11144180
申请日：2005-06-02
IPC分类号： H04B7/216
CPC分类号： H04W88/10 , H04B7/2656 , H04L1/0083 , H04L5/14 , H04L27/2602 , H04W92/10 , Y02D70/1222 , Y02D70/1242 , Y02D70/1244 , Y02D70/21 , Y02D70/449
摘要： Techniques for transmitting data in a wireless communication system are described. Physical channels to be sent in a super-frame are identified and allocated time slots in the super-frame. The coding and modulation for each physical channel are selected based on its capacity. The data for each physical channel is selectively encoded based on an outer code rate, e.g., for a Reed-Solomon code, and further encoded based on an inner code rate, e.g., for a Turbo code. The encoded data for each physical channel is mapped to modulation symbols based on a selected modulation scheme. The modulation symbols for each physical channel are further processed (e.g., OFDM modulated) and multiplexed onto the time slots allocated to the physical channel. Data to be sent using another radio technology (e.g., W-CDMA) is also processed and multiplexed onto time slots allocated for this radio technology.
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公开(公告)号：US20050163258A1
公开(公告)日：2005-07-28
申请号：US11022513
申请日：2004-12-22
申请人： Dhananjay Gore , Ashok Mantravadi , Fuyun Ling , Krishna Mukkavilli , Raghuraman Krishnamoorthi
发明人： Dhananjay Gore , Ashok Mantravadi , Fuyun Ling , Krishna Mukkavilli , Raghuraman Krishnamoorthi
CPC分类号： H04L25/0224 , H04L25/0212 , H04L25/022
摘要： Pilot transmission and channel estimation techniques for an OFDM system with excess delay spread are described. To mitigate the deleterious effects of excess delay spread, time filtering is utilized. Time filtering is utilized to combat excess delay spread effects in channel estimation. The time filtering is performed in the presence of staggered pilots and helps in improving the channel estimate in the presence of excess delay spread.
摘要翻译： 描述了具有超延迟扩展的OFDM系统的导频传输和信道估计技术。 为了减轻多余延迟扩展的有害影响，利用时间滤波。 利用时间滤波来对付信道估计中的多余延迟扩散效应。 在存在交错导频的情况下执行时间滤波，并有助于在存在超延迟扩展的情况下改善信道估计。
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55.发明申请公开(公告)号：US20050163083A1
公开(公告)日：2005-07-28
申请号：US11046121
申请日：2005-01-28
IPC分类号： H04B7/216 , H04H1/00 , H04H20/28 , H04H20/33 , H04H20/42 , H04H20/72 , H04J11/00 , H04L5/02 , H04L5/06 , H04L27/26
摘要： Accordingly, a method and apparatus are provided to convert received content into a first stream and a second stream, to transmit said first stream using a first tone and to transmit said second stream using an orthogonal scheme. A layering scheme is used to transmit the base stream covering a smaller area and an enhanced stream is used to cover a large utilizing orthogonal scheme.
摘要翻译： 因此，提供了一种方法和装置，用于将接收到的内容转换为第一流和第二流，以使用第一音调发送所述第一流，并使用正交方案发送所述第二流。 使用分层方案来传输覆盖较小区域的基本流，并且使用增强流来覆盖大的利用正交方案。
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公开(公告)号：US20050122928A1
公开(公告)日：2005-06-09
申请号：US10968787
申请日：2004-10-18
申请人： Rajiv Vijayan , Fuyun Ling , Gordon Walker , Ramaswamy Murali , Ashok Mantravadi , Anand Subramaniam , Krishnamurthy Viswanathan
发明人： Rajiv Vijayan , Fuyun Ling , Gordon Walker , Ramaswamy Murali , Ashok Mantravadi , Anand Subramaniam , Krishnamurthy Viswanathan
CPC分类号： H04L5/0041 , H04L5/0007 , H04L5/0044 , H04L5/0048 , H04L12/189 , H04W72/005
摘要： To broadcast different types of transmission having different tiers of coverage in a wireless broadcast network, each base station processes data for a wide-area transmission in accordance with a first mode (or coding and modulation scheme) to generate data symbols for the wide-area transmission and processes data for a local transmission in accordance with a second mode to generate data symbols for the local transmission. The first and second modes are selected based on the desired coverage for wide-area and local transmissions, respectively. The base station also generates pilots and overhead information for local and wide-area transmissions. The data, pilots, and overhead information for local and wide-area transmissions are multiplexed onto their transmission spans, which may be different sets of frequency subbands, different time segments, or different groups of subbands in different time segments. More than two different types of transmission may also be multiplexed and broadcast.
摘要翻译： 为了在无线广播网络中广播具有不同层次的不同类型的传输，每个基站根据第一模式（或编码和调制方案）处理广域传输的数据，以产生广域的数据符号 根据第二模式传输和处理用于本地传输的数据，以产生用于本地传输的数据符号。 分别基于广域和本地传输的期望覆盖来选择第一和第二模式。 基站还为本地和广域传输生成导频和开销信息。 用于本地和广域传输的数据，导频和开销信息被复用到它们的传输跨度，其可以是不同组的频率子带，不同时间段或不同时间段中的不同子带组。 多于两种不同类型的传输也可以被复用和广播。
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公开(公告)号：US09144084B2
公开(公告)日：2015-09-22
申请号：US13491931
申请日：2012-06-08
CPC分类号： H04W72/1215 , H04W16/14 , H04W28/04 , H04W88/06
摘要： Prior to implementing a coexistence solution for a multi-radio device, a measurement determines whether interference experienced by one radio is caused by another radio on the device. This determination includes comparing measurements of the first radio during times when the other radio is operational and when the other radio is inactive. If the compared performance measurements are within a certain range, a coexistence/interference management solution may be implemented.
摘要翻译： 在实现多无线电设备的共存解决方案之前，测量确定一个无线电经受的干扰是否由设备上的另一个无线电引起。 该确定包括在另一个无线电操作的时间和当另一无线电处于非活动状态时比较第一无线电的测量。 如果比较的性能测量在一定范围内，则可以实现共存/干扰管理解决方案。
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公开(公告)号：US08897220B2
公开(公告)日：2014-11-25
申请号：US13237107
申请日：2011-09-20
CPC分类号： H04W72/1215
摘要： A method of wireless communication includes determining denial rates for first and second communication attempts of a packet using a first communication resource (e.g., an LTE radio). The method also includes allowing a second communication resource (e.g., a Bluetooth radio) to communicate when communication attempts from the first communication resource are denied. The denial rates are chosen to achieve threshold levels of performance for the first and second communication resources. The second denial rate may be set and the first denial rate adjusted in a looped manner to achieve desired Bluetooth performance. The denial rates may be set to deny all first communication attempts but to allow all second communication attempts. Final attempts to transmit Bluetooth packets may be given priority regardless of the first and second denial rates.
摘要翻译： 无线通信的方法包括：使用第一通信资源（例如，LTE无线电）确定分组的第一和第二通信尝试的拒绝率。 该方法还包括当来自第一通信资源的通信尝试被拒绝时允许第二通信资源（例如，蓝牙无线电）进行通信。 选择拒绝率以实现第一和第二通信资源的阈值性能水平。 可以设置第二拒绝率并且以循环方式调整第一拒绝率以实现期望的蓝牙性能。 可以将拒绝率设置为拒绝所有第一通信尝试，但是允许所有第二通信尝试。 无论第一和第二拒绝率如何，可以优先考虑发送蓝牙数据包的最终尝试。
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公开(公告)号：US08724545B2
公开(公告)日：2014-05-13
申请号：US12851302
申请日：2010-08-05
IPC分类号： H04Q7/00
CPC分类号： H04W16/14 , H04W72/1215 , H04W88/06
摘要： A method of wireless communication includes identifying at least one current resource for which a coexistence issue is present. The method also includes submitting a message to a base station that includes information indicative of the coexistence issue for the current resource(s). The handover request may include information indicative of the resource for which the coexistence issue is present and/or a desired future resource.
摘要翻译： 无线通信的方法包括识别存在共存问题的至少一个当前资源。 该方法还包括向基站提交包括指示当前资源的共存问题的信息的消息。 切换请求可以包括指示存在共存问题的资源和/或期望的未来资源的信息。
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公开(公告)号：US08655400B2
公开(公告)日：2014-02-18
申请号：US13232547
申请日：2011-09-14
申请人： Tamer Adel Kadous , Xiaoyin He , Pranav Dayal , Ashok Mantravadi , Jibing Wang
发明人： Tamer Adel Kadous , Xiaoyin He , Pranav Dayal , Ashok Mantravadi , Jibing Wang
摘要： In user equipments (UEs) with multiple radios, interference between those radios may be reduced by monitoring radio performance and adjusting aggressor transmit power levels to ensure victim and aggressor performance stay within desired operational levels. Various factors may determine when a reduced power approach is desired. Such factors may include aggressor transmit power, received signal strength indicator, victim error rate, throughput loss, coverage impact, etc. Various methods of reducing transmit power may be used. For example, for Long Term Evolution communications, a power headroom report may be altered to adjust a modulation coding scheme and bandwidth allocated for a particular UE. For Bluetooth communications a power control mechanism may be overridden to ensure a device stays within a desired transmit power. A power reduction loop may be employed to monitor a device's transmit power.
摘要翻译： 在具有多个无线电的用户设备（UE）中，可以通过监视无线电性能并调整攻击者发射功率电平来降低这些无线电之间的干扰，以确保受害者和侵略者的性能保持在期望的操作级别内。 各种因素可能决定何时需要降低功率的方法。 这些因素可能包括攻击者发射功率，接收信号强度指示符，受害者错误率，吞吐量损失，覆盖影响等。可以使用各种降低发射功率的方法。 例如，对于长期演进通信，可以改变功率余量报告以调整为特定UE分配的调制编码方案和带宽。 对于蓝牙通信，可以覆盖功率控制机制以确保设备保持在期望的发射功率内。 可以采用功率降低环路来监视设备的发射功率。
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