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1.发明授权公开(公告)号：US08538464B2
公开(公告)日：2013-09-17
申请号：US12346286
申请日：2008-12-30
IPC分类号： H04W68/00
CPC分类号： H04W68/02 , H04W4/08 , H04W72/0466
摘要： Code words are assigned to subscriber stations or groups of subscriber stations in a communication network for a quick paging mechanism in which the assigned code words are transmitted as quick paging signals over unused frequency resources to signal the subscriber stations. Subsets of multiple code words from a set of code words can be assigned to respective paging groups, and overlapping subsets can be assigned to multiple paging groups. This enables a single code word to be used to address either a single paging group or multiple paging groups.
摘要翻译： 代码字被分配给通信网络中的订户站或用户站组，用于快速寻呼机制，其中分配的码字作为快速寻呼信号在未使用的频率资源上发送，以向用户台发信号。 可以将来自一组码字的多个码字的子集分配给各个寻呼组，并且可以将重叠的子集分配给多个寻呼组。 这使得能够使用单个代码字来寻址单个寻呼组或多个寻呼组。
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2.发明授权公开(公告)号：US08144720B2
公开(公告)日：2012-03-27
申请号：US12429468
申请日：2009-04-24
IPC分类号： H04Q11/02
CPC分类号： H04L49/9094 , H04L1/0003 , H04L1/0009 , H04L5/0007 , H04L5/0042 , H04L5/0046 , H04L5/006 , H04L43/0894 , H04L43/16 , H04L47/70 , H04L47/74 , H04L47/781 , H04W28/065 , H04W28/22 , H04W72/044 , H04W72/048 , H04W72/12 , Y02D70/146
摘要： A base station in an OFDMA system which determines a modulation and coding scheme to use for a packet of a certain size to be transmitted by a Mobile Station. The base station schedules transmissions by mobile stations and transmits packets. The base station includes a processing unit which determines a number of time-frequency resources required to transmit the packet for a modulation and coding scheme, determines an SINR based on the number of time-frequency resources used and available power at the mobile station, determines a transmission rate as a ratio of the packet size transmitted to the number of time-frequency resources used, sets a rate to zero if the determined SINR is lower than a threshold SINR required for the modulation and coding scheme, and selects the modulation and coding scheme with a highest transmission rate. The base station includes a memory storing modulation and coding schemes.
摘要翻译： OFDMA系统中的基站，其确定用于要由移动站发送的一定大小的分组的调制和编码方案。 基站调度移动台的传输并发送分组。 基站包括：处理单元，其确定用于调制和编码方案发送分组所需的时间频率资源的数量;基于所使用的时间频率资源的数量和移动站的可用功率来确定SINR，确定 如果发送的分组大小与使用的时间 - 频率资源的数量的比率的传输速率，则如果确定的SINR低于调制和编码方案所需的阈值SINR，则将速率设置为零，并且选择调制和编码 传输速率最高的方案。 基站包括存储调制和编码方案的存储器。
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公开(公告)号：US07796698B2
公开(公告)日：2010-09-14
申请号：US11757731
申请日：2007-06-04
CPC分类号： H04L27/2647 , H04L5/0048 , H04L25/0228
摘要： A receiver uses knowledge of pilot symbols transmitted by a neighboring sector to reduce interference in a received data symbol. The received data symbol is transmitted on one or more data subcarriers in a first sector. Overlapping pilot symbols transmitted on overlapping pilot carriers in a second sector are determined and used to generate channel estimates for the overlapping pilot carriers. The overlapping pilot symbols and pilot channel estimates are then used to reduce interference in the received data symbol.
摘要翻译： 接收机使用由相邻扇区发送的导频符号的知识来减少接收的数据符号中的干扰。 所接收的数据符号在第一扇区中的一个或多个数据子载波上发送。 确定在第二扇区中的重叠导频载波上发送的重叠导频符号，并用于生成重叠导频载波的信道估计。 然后使用重叠导频符号和导频信道估计来减少接收到的数据符号中的干扰。
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公开(公告)号：US20090092085A1
公开(公告)日：2009-04-09
申请号：US12138000
申请日：2008-06-12
IPC分类号： H04Q7/00
CPC分类号： H04L27/0008 , H04L1/0083 , H04L1/1607 , H04L5/0007 , H04L5/0091 , H04L25/0204
摘要： A radio access network (RAN) (20) comprise a base station (28) and a wireless terminal (30). The base station 28 comprises a transceiver (38) and a frame handler (40), the wireless terminal (30) comprises a transceiver (48) and a wireless terminal frame handler (50). The frame handlers (40, 50) handle a enhanced frame F having enhanced frame structure. At least a downlink portion of the frame is formatted and handled in a manner whereby the frame can be perceived as a first format type of frame if the wireless terminal is a first type of wireless terminal and perceived as an enhanced or second format type of frame if the wireless terminal is a second type of wireless terminal. The frame handler configures the frame as plural subframes, each subframe having a downlink burst followed by an uplink burst. The frame is preferably configured to afford the second type of wireless terminal sufficient time to develop an acknowledgement for a message transmitted in a downlink burst, the acknowledgement being sent to the base station in an uplink burst which is within one frame length of the message.
摘要翻译： 无线电接入网络（RAN）（20）包括基站（28）和无线终端（30）。 基站（28）包括收发器（38）和帧处理器（40），无线终端（30）包括收发器（48）和无线终端帧处理器（50）。 帧处理器（40,50）处理具有增强的帧结构的增强帧F. 帧的至少下行链路部分被格式化和处理，其中如果无线终端是第一类型的无线终端并且被感知为增强或第二格式类型的帧，则可以将帧感知为第一格式类型的帧 如果无线终端是第二类型的无线终端。 帧处理器将帧配置为多个子帧，每个子帧具有下行链路突发，随后是上行链路突发。 该帧优选地被配置为提供第二类型的无线终端足够的时间以对在下行链路突发中发送的消息进行确认，该确认在消息的一个帧长度内的上行链路突发中被发送到基站。
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公开(公告)号：US20080298524A1
公开(公告)日：2008-12-04
申请号：US11757731
申请日：2007-06-04
IPC分类号： H04B1/10
CPC分类号： H04L27/2647 , H04L5/0048 , H04L25/0228
摘要： A receiver uses knowledge of pilot symbols transmitted by a neighboring sector to reduce interference in a received data symbol. The received data symbol is transmitted on one or more data subcarriers in a first sector. Overlapping pilot symbols transmitted on overlapping pilot carriers in a second sector are determined and used to generate channel estimates for the overlapping pilot carriers. The overlapping pilot symbols and pilot channel estimates are then used to reduce interference in the received data symbol.
摘要翻译： 接收机使用由相邻扇区发送的导频符号的知识来减少接收的数据符号中的干扰。 所接收的数据符号在第一扇区中的一个或多个数据子载波上发送。 确定在第二扇区中的重叠导频载波上发送的重叠导频符号，并用于生成重叠导频载波的信道估计。 然后使用重叠导频符号和导频信道估计来减少接收到的数据符号中的干扰。
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6.发明申请Efficient, Secure Digital Wireless Voice Telephony Via Selective Encryption 有权通过选择性加密的高效，安全的数字无线语音电话公开(公告)号：US20080298285A1
公开(公告)日：2008-12-04
申请号：US11757679
申请日：2007-06-04
CPC分类号： H04W12/02 , H04L65/607 , H04W84/00
摘要： Secure, digital, packet-switched, voice telephony calls are wirelessly transmitted in an efficient manner that reduces air interface bandwidth consumption by encrypting only vocoder data frames containing encoded speech, and not encrypting vocoder data frames that do not contain speech, such as those containing silence parameters. The collective reduced bandwidth consumption across a large number of voice telephony calls may allow for the admission of one or more new calls during times of voice telephony congestion. Not encrypting the silence parameters does not compromise call privacy or security, since the silence data frames do not carry any speech. The classification of encoded data frames as containing speech or not may be performed in a variety of ways.
摘要翻译： 安全，数字，分组交换，语音电话呼叫以有效的方式无线传输，通过仅加密包含编码语音的声码器数据帧，而不加密不包含语音的声码器数据帧，减少空中接口带宽消耗，例如包含 沉默参数。 在大量语音电话呼叫中的集体降低的带宽消耗可以允许在语音电话拥塞期间允许一个或多个新的呼叫。 不加密静音参数不会影响呼叫隐私或安全性，因为静音数据帧不携带任何语音。 可以以各种方式来执行编码数据帧作为包含语音的分类。
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7.发明授权Method and apparatus for the location of the peak of a function using a filter bank 有权使用滤波器组来定位功能峰值的方法和装置公开(公告)号：US06463450B1
公开(公告)日：2002-10-08
申请号：US09384111
申请日：1999-08-26
IPC分类号： G06F1717
CPC分类号： G06F17/17
摘要： A method and apparatus for determining the location of the peak of a signal using an adaptive filter bank. The method includes the steps of providing a set of calculated output points for the function using a predetermined calculation interval. A maximum output point of the set is then determined, and the output points of the function are interpolated within the region of the maximum. A maximum of the interpolated output points approaches the peak of the function. The apparatus includes a plurality of interconnected digital filters operating on the function to calculate output values, and at least one control unit in communication with the digital filters. The control unit is operable to control the output of the filters and to select a first maximum of the output values. The control unit allows progressive interpolation of output values surrounding the first maximum to determine whether the interpolated output values approach a peak.
摘要翻译： 一种用于使用自适应滤波器组确定信号的峰值的位置的方法和装置。 该方法包括以下步骤：使用预定的计算间隔为功能提供一组计算的输出点。 然后确定集合的最大输出点，并且在最大值的区域内插入函数的输出点。 内插输出点的最大值接近函数的峰值。 该装置包括多个互连的数字滤波器，用于计算输出值的功能，以及与数字滤波器通信的至少一个控制单元。 控制单元可操作以控制滤波器的输出并选择输出值的第一最大值。 控制单元允许对包围第一最大值的输出值进行逐行插值，以确定内插输出值是否接近峰值。
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公开(公告)号：US09226245B2
公开(公告)日：2015-12-29
申请号：US13632589
申请日：2012-10-01
CPC分类号： H04W52/28 , H04W52/146 , H04W52/242 , H04W52/243 , H04W52/285 , H04W52/288 , H04W52/367
摘要： An access node is configured to adapt uplink power control procedures based on the device attributes of a wireless device. The device attributes may, for example be the mobility, energy profile, or characteristic traffic pattern of the wireless device. The adaptive uplink power control procedure may be used to minimize or reduce power consumption, to improve resource utilization efficiency, or to reduce interference levels.
摘要翻译： 接入节点被配置为基于无线设备的设备属性来适配上行链路功率控制过程。 设备属性可以例如是无线设备的移动性，能量简档或特征业务模式。 可以使用自适应上行链路功率控制过程来最小化或降低功耗，提高资源利用效率或降低干扰水平。
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9.发明授权System, method, and apparatus for improved space-time coding and dynamic switching with advanced receivers 有权用于改进时空编码和高级接收机的动态切换的系统，方法和装置公开(公告)号：US08750240B2
公开(公告)日：2014-06-10
申请号：US12561711
申请日：2009-09-17
IPC分类号： H04W4/00
CPC分类号： H04L5/006 , H04B7/0413 , H04B7/0669 , H04L5/0007 , H04L5/0037 , H04W4/06 , H04W72/0446 , H04W72/0453 , H04W72/046 , H04W88/06
摘要： Methods and apparatus for allocating time-frequency resources to mobile terminals in a wireless communications system in which time-frequency resources may be selectively used according to a first multiple-input multiple-output (MIMO) transmission scheme or a second MIMO transmission scheme that differs from the first MIMO transmission scheme. An exemplary method comprises, for at least a first scheduling instance, identifying a first group of mobile terminals corresponding to the first MIMO transmission scheme and a second group of mobile terminals corresponding to the second MIMO transmission scheme, allocating time-frequency resources in a first pre-determined time-frequency zone exclusively to mobile terminals belonging to the first group, and allocating time-frequency resources in one or more additional pre-determined time-frequency zones to one or more mobile terminals belonging to the second group. This method may be implemented in a base station of a WiMAX system, for example.
摘要翻译： 用于在无线通信系统中向移动终端分配时间频率资源的方法和装置，其中可以根据不同的第一多输入多输出（MIMO）传输方案或第二MIMO传输方案来选择性地使用时间频率资源 从第一MIMO传输方案。 一种示例性方法包括：对于至少第一调度实例，识别对应于第一MIMO传输方案的第一组移动终端和对应于第二MIMO传输方案的第二组移动终端， 预定的时频区域专用于属于第一组的移动终端，以及将属于第二组的一个或多个移动终端的一个或多个附加的预定时频区域中的时间频率资源分配。 例如，该方法可以在WiMAX系统的基站中实现。
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10.发明授权Encoding and decoding methods for expurgated convolutional codes and convolutional turbo codes 有权用于废弃卷积码和卷积涡轮码的编码和解码方法公开(公告)号：US08726137B2
公开(公告)日：2014-05-13
申请号：US12696141
申请日：2010-01-29
IPC分类号： H03M13/03
CPC分类号： H03M13/235 , H03M13/2957 , H03M13/413 , H03M13/618 , H03M13/6356 , H03M13/6362 , H03M13/6544
摘要： A convolutional encoder (50) comprises an expurgation unit (22) and a first component convolutional encoder section (24). A convolutional turbo encoder (20) comprises an expurgation unit (22); a first component convolutional encoder section (24); a second component convolutional encoder section (26); and an interleaver (28). For both the convolutional encoder (50) and the expurgating convolutional turbo encoder (20) the expurgation unit (22) inserts predetermined values at selected bit positions of an input bit sequence and thereby provide an expurgated input bit sequence. A lower rate convolutional code is obtained from a higher rate code via expurgation.
摘要翻译： 卷积编码器（50）包括消除单元（22）和第一组件卷积编码器部分（24）。 卷积涡轮编码器（20）包括消除单元（22）; 第一组件卷积编码器部分（24）; 第二组件卷积编码器部分（26）; 和交织器（28）。 对于卷积编码器（50）和剥离卷积涡轮编码器（20），消除单元（22）在输入位序列的选定位位置处插入预定值，从而提供一个被消除的输入位序列。 较低速率的卷积码通过较高的速率代码获得。
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