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公开(公告)号：US07961700B2
公开(公告)日：2011-06-14
申请号：US11398803
申请日：2006-04-05
IPC分类号： H04J3/00
CPC分类号： H04B1/70735 , H04B1/7083 , H04L1/0026 , H04L1/0028 , H04L1/1671 , H04L5/0053 , H04L5/0064 , H04L5/14 , H04W72/0406 , H04W72/0413 , H04W72/085 , H04W74/0833
摘要： Multi-carrier point-to-multi-point CDMA system implementation reduces hardware changes in legacy single-carrier systems. The number of common downlink channels, such as timing/synchronization and paging channels, is reduced by designating an anchor carrier for transmitting these channels. Procedures for adding carriers and carrier acquisition are simplified through common carrier timing, signaling by the network to the user equipment (UE) of timing offsets and scrambling code selection, and other measures. Channel reuse is employed to minimize changes in asymmetric systems with different numbers of uplink and downlink carriers. Channel Quality Indicator (CQI) field is divided into multiple subfields to enable transmission of multiple CQIs and ACK/NACK indicators on one uplink carrier. Joint and separate scheduling schemes are shown for concurrent scheduling of a data stream transmission to a UE via multiple downlink carriers.
摘要翻译： 多载波点对多点CDMA系统实现减少了传统单载波系统中的硬件变化。 通过指定用于发送这些信道的锚定载波来减少诸如定时/同步和寻呼信道的公共下行链路信道的数量。 通过公共载波定时，网络向用户设备（UE）发送定时偏移和扰码选择等措施，简化了载波和载波采集的处理步骤。 使用信道重用来最小化具有不同数量的上行链路和下行链路载波的不对称系统的变化。 信道质量指示符（CQI）字段被划分为多个子字段，以使得能够在一个上行链路载波上传输多个CQI和ACK / NACK指示符。 示出了联合和单独的调度方案，用于经由多个下行链路载波并行调度到UE的数据流传输。
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公开(公告)号：US08363606B2
公开(公告)日：2013-01-29
申请号：US11847307
申请日：2007-08-29
IPC分类号： H04W4/00
CPC分类号： H04L5/0053 , H04L1/06 , H04L1/1887 , H04L5/0017 , H04L5/0044 , H04L5/14 , H04L27/2602 , H04W72/044
摘要： System(s) and method(s) are provided for transmitting data code symbols and control code symbols spanning disparate transmission time intervals in the uplink. Data and control symbols that overlap in time-domain within a transmission time interval are multiplexed and transmitted employing resources scheduled for data transmission, whereas data and control code symbols that are not multiplexed are transmitted in respective allocated resources. Multiplexing in conjunction with localized and distributed resource scheduling preserves the single-carrier characteristics of a single-carrier frequency division multiple access system.
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3.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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公开(公告)号：US09137821B2
公开(公告)日：2015-09-15
申请号：US12113808
申请日：2008-05-01
CPC分类号： H04W72/14
摘要： Systems and methodologies are described that facilitate employing flexible signaling of resource block assignments on a control channel. Resource blocks associated with an uplink or downlink channel can be split into a plurality of groups, and group-specific signaling constraints can be utilized with each of these groups. For example, the group-specific signaling constraints can relate to minimum resource block allocation units, signaling structures (e.g., bitmap structure, contiguous allocation structure, tree-based structure, . . . ), and the like utilized for sending assignment indications that allocate resource blocks within the respective groups. Further, an access terminal can have a common understanding of the group-specific signaling constraints; thus, a received assignment indication can be deciphered by the access terminal by utilizing the group-specific signaling constraints.
摘要翻译： 描述了有助于在控制信道上采用资源块分配的灵活信令的系统和方法。 与上行链路或下行链路信道相关联的资源块可以被分成多个组，并且可以利用组特定的信令约束与这些组中的每个组一起使用。 例如，组特定信令约束可以涉及用于发送分配指示的最小资源块分配单元，信令结构（例如，位图结构，连续分配结构，基于树的结构，...）等 各组内的资源块。 此外，接入终端可以对组特定信令约束具有共同的理解; 因此，接收到的分配指示可以由接入终端通过利用组特定信令约束来解密。
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公开(公告)号：US08942208B2
公开(公告)日：2015-01-27
申请号：US12819355
申请日：2010-06-21
申请人： Tao Luo , Durga Prasad Malladi , Xiaoxia Zhang , Juan Montojo , Sai Yiu Duncan Ho , Nathan Edward Tenny
发明人： Tao Luo , Durga Prasad Malladi , Xiaoxia Zhang , Juan Montojo , Sai Yiu Duncan Ho , Nathan Edward Tenny
CPC分类号： H04L1/1825 , H04L1/189
摘要： Providing for improved error control signaling in wireless communications is disclosed herein. By way of example, multiple transmissions can be conducted for a HARQ process prior to a scheduled feedback signal on the HARQ process, causing a receiving device to combine the multiple transmissions, rather than treat them as separate transmissions. In this manner, multiple transmissions can be employed to increase overall receive energy, without violating maximum transmit power constraints in a wireless communication. Further, these multiple transmissions can be configured based on prevailing signal strength at the receiving device, or based on processing capabilities of the receiving device, providing flexible protocols that can accommodate advanced as well as legacy UEs in wide range of wireless conditions.
摘要翻译： 本文公开了在无线通信中提供改进的差错控制信令。 作为示例，可以在HARQ过程之前的调度的反馈信号之前对HARQ进程进行多个传输，使得接收设备组合多个传输，而不是将其作为单独的传输。 以这种方式，可以采用多个传输来增加总体接收能量，而不违反无线通信中的最大发射功率约束。 此外，可以基于接收设备处的主要信号强度或基于接收设备的处理能力来配置这些多个传输，从而提供可在宽范围的无线条件下适应高级以及传统UE的灵活协议。
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公开(公告)号：US08676223B2
公开(公告)日：2014-03-18
申请号：US12052691
申请日：2008-03-20
CPC分类号： H04W72/082 , H04W72/0426 , H04W72/0486 , H04W72/12 , H04W92/045 , H04W92/12
摘要： System(s) and method(s) are provided for inter-cell interference management in a wireless communication system. A base station perform interference management by conveying and receiving load indicator messages over a backhaul communication link to disparate neighboring base stations that serve interfering mobile stations. Reporting of load indicators takes place according to a reporting policy that is event-based, and accounts for variations of interference metrics over available time-frequency resources. Communication with neighboring base stations is limited to a monitoring interference set, which can be determined statically, according to deployment characteristics of a wireless network, or the set can be adjusted dynamically according to a set of received UL signals or a set of DL CQI measurement reports. Reporting policy and interference set can be autonomously adapted to optimize backhaul traffic as well as interference control.
摘要翻译： 为无线通信系统中的小区间干扰管理提供系统和方法。 基站通过回程通信链路传送和接收负载指示符消息来执行干扰管理，以分散给服务于干扰移动站的相邻基站。 负载指示器的报告根据基于事件的报告策略进行，并考虑了可用时间频率资源的干扰指标变化。 与相邻基站的通信仅限于可以根据无线网络的部署特性静态地确定的监控干扰集，或者可以根据接收到的UL信号的集合或者一组DL CQI测量来动态地调整该集合 报告。 报告策略和干扰集可以自主调整，以优化回程流量以及干扰控制。
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公开(公告)号：US08665799B2
公开(公告)日：2014-03-04
申请号：US11853704
申请日：2007-09-11
申请人： Durga Prasad Malladi , Juan Montojo , Junyi Li , Byoung-Hoon Kim
发明人： Durga Prasad Malladi , Juan Montojo , Junyi Li , Byoung-Hoon Kim
CPC分类号： H04W56/001 , H04B1/713 , H04J11/0069 , H04L5/0023 , H04L5/0048 , H04L5/0053 , H04L5/0064 , H04L27/2656 , H04W48/12 , H04W48/16
摘要： Techniques for transmitting synchronization signals to assist user equipments (UEs) perform cell searches are described. In one design, a base station for a cell may generate and transmit a primary synchronization signal and a secondary synchronization signal, which may be used by the UEs for initial cell search at power up. The base station may also generate and transmit one or more beacon signals, which may be used by the UEs for neighbor cell search to detect for neighbor cells. The number of beacon signals to transmit and the set of subcarriers usable for each beacon signal may be determined based on the system bandwidth. Each beacon signal may be mapped to one subcarrier in the set of subcarriers in each beacon symbol period. This one subcarrier may be determined based on a beacon hopping pattern or a beacon code and may be dependent on a cell identifier (ID).
摘要翻译： 描述用于发送同步信号以辅助用户设备（UE）执行小区搜索的技术。 在一种设计中，用于小区的基站可以生成并发送主同步信号和辅同步信号，UE可以在加电时用于初始小区搜索。 基站还可以生成和发送一个或多个信标信号，其可以由UE用于相邻小区搜索以检测相邻小区。 可以基于系统带宽来确定要发送的信标信号的数量和可用于每个信标信号的子载波的集合。 每个信标信号可以被映射到每个信标符号周期中的子载波集合中的一个子载波。 可以基于信标跳变模式或信标代码来确定该一个子载波，并且可以依赖于小区标识符（ID）。
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公开(公告)号：US08514721B2
公开(公告)日：2013-08-20
申请号：US12816102
申请日：2010-06-15
IPC分类号： H04L12/26
CPC分类号： H04L1/1822 , H04L1/1835 , H04L1/1896
摘要： Methods, systems, apparatus and computer program products are provided to improve the reliability of data reception. In one provided embodiment, a communication signal is parsed by a communication device to identify repeat request identifiers. The device determines an inter-arrival time of two instances of the same identifier and processes the communication signal based on a comparison between the inter-arrival time and a predetermined time. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the disclosed subject matter. Therefore, it is to be understood that it should not be used to interpret or limit the scope or the meaning of the claims.
摘要翻译： 提供方法，系统，装置和计算机程序产品以提高数据接收的可靠性。 在一个所提供的实施例中，通信信号由通信设备解析以识别重复请求标识符。 设备确定相同标识符的两个实例的到达之间的时间，并且基于到达之间的时间与预定时间之间的比较来处理通信信号。 本摘要仅用于遵守允许读者快速确定所披露的主题的抽象要求规则。 因此，应当理解，它不应用于解释或限制权利要求书的范围或含义。
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公开(公告)号：US08477705B2
公开(公告)日：2013-07-02
申请号：US12846586
申请日：2010-07-29
申请人： Tao Luo , Durga Prasad Malladi , Xiaoxia Zhang , Yongbin Wei , Juan Montojo , Ke Liu
发明人： Tao Luo , Durga Prasad Malladi , Xiaoxia Zhang , Yongbin Wei , Juan Montojo , Ke Liu
IPC分类号： H04W4/00
CPC分类号： H04L5/0007 , H04L1/1854 , H04L1/1861 , H04L5/0032 , H04L5/0035 , H04L5/0053 , H04L5/0055 , H04L5/006 , H04L5/0062 , H04L5/0073 , H04W72/082
摘要： Certain embodiments of the present disclosure propose two efficient designs for a control channel in a Coordinated Multi-Point (CoMP) system. The proposed designs enable a user equipment (UE) to transmit acknowledgement (ACK) and negative acknowledgement (NACK) signals to one or more access points (APs) upon receiving transmissions from them.
摘要翻译： 本公开的某些实施例提出了用于协调多点（CoMP）系统中的控制信道的两种有效设计。 所提出的设计使得用户设备（UE）在接收到来自它们的传输时能够向一个或多个接入点（AP）发送确认（ACK）和否定确认（NACK）信号。
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公开(公告)号：US08437792B2
公开(公告)日：2013-05-07
申请号：US12030787
申请日：2008-02-13
申请人： Durga Prasad Malladi , Juan Montojo
发明人： Durga Prasad Malladi , Juan Montojo
IPC分类号： H04B7/00
CPC分类号： H04W52/08 , H04W52/146 , H04W52/362 , H04W52/54
摘要： Systems and methodologies are described that facilitate employing aperiodic closed loop power control corrections in a Long Term Evolution (LTE) based wireless communication environment. An aperiodic power control command can be sent over a downlink to control and/or correct an uplink power level employed by an access terminal. Transmission of the aperiodic power control can be triggered by a measurement (e.g., received power being outside a set margin, . . . ). The aperiodic power control command can include a single-bit and/or a multi-bit correction. Further, the access terminal can alter the uplink power level employed for subsequent uplink transmissions based upon the aperiodic power control command when received. Additionally, regardless whether the aperiodic power control command is received at a given time over the downlink, the access terminal can employ periodic power control commands and an open loop power control mechanism to adjust the uplink power level.
摘要翻译： 描述了有助于在基于长期演进（LTE）的无线通信环境中采用非周期闭环功率控制校正的系统和方法。 可以通过下行链路发送非周期功率控制命令，以控制和/或校正接入终端采用的上行链路功率电平。 非周期性功率控制的传输可以通过测量（例如，接收功率在设定余量之外，...）来触发。 非周期功率控制命令可以包括单位和/或多位校正。 此外，接入终端可以基于接收到的非周期功率控制命令来改变用于后续上行链路传输的上行链路功率电平。 此外，无论在下行链路上的给定时间是否接收到非周期性功率控制命令，接入终端可以采用周期性功率控制命令和开环功率控制机制来调整上行链路功率电平。
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