CN101297529B - Sdma资源管理 - Google Patents

Sdma资源管理 Download PDF

Info

Publication number
CN101297529B
CN101297529B CN2006800402484A CN200680040248A CN101297529B CN 101297529 B CN101297529 B CN 101297529B CN 2006800402484 A CN2006800402484 A CN 2006800402484A CN 200680040248 A CN200680040248 A CN 200680040248A CN 101297529 B CN101297529 B CN 101297529B
Authority
CN
China
Prior art keywords
hop
ports
access terminal
mapped
terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN2006800402484A
Other languages
English (en)
Other versions
CN101297529A (zh
Inventor
T·吉
D·A·高尔
A·格洛科夫
M·东
A·阿加沃尔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of CN101297529A publication Critical patent/CN101297529A/zh
Application granted granted Critical
Publication of CN101297529B publication Critical patent/CN101297529B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/026—Co-operative diversity, e.g. using fixed or mobile stations as relays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0037—Inter-user or inter-terminal allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/563—Allocation or scheduling criteria for wireless resources based on priority criteria of the wireless resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/023—Multiplexing of multicarrier modulation signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

一种用于在无线通信环境中分配资源的方法，包括：接收第一跳跃端口与频率范围之间的映射；以及确定是否将第二接入终端映射到在基本相似的时间实例期间被映射到至少同一频率范围的第二跳跃端口，该确定是根据与和该第一跳跃端口相关联的第一接入终端有关的特性来作出的。该方法还包括：确定第一接入终端是将采用空分多址(SDMA)的候选者；以及当第二接入终端也是将采用SDMA的候选者时映射第二跳跃端口并且使该第二终端与该第二跳跃端口关联。

Description

SDMA资源管理
                             背景
I.领域
以下说明一般涉及无线通信，并且尤其涉及无线通信系统的灵活通信方案。
II.背景
为了实现去往和来自移动设备的数据传输，必须启用稳健的通信网络。当今移动网络中所使用的一种特定技术是正交频分调制或正交频分复用(OFDM)。OFDM将数字信息调制到模拟载波电磁信号之上，并且其被用在例如IEEE 802.11a/g WLAN标准中。OFDM基带信号(例如，子带)构成数个正交副载波，其中每个副载波由其自己的数据来独立调制。OFDM的益处包括易于实现噪声滤波、能够变换上游和下游速度(这可经由针对每种用途分配更多或更少载波来实现)、能够减轻频率选择衰落的影响等。
常规网络还必须能够适应于新的技术以容纳数目不断增长的用户。因此，重要的是基本上不对数据传输的质量造成不利影响地来增加网络扇区内的维度的数目。当使用OFDM时，增加维度可能是成问题的，因为可用于数据传输的频调的数目是有限的。空分多址(SDMA)通过共享时频资源来实现维度数目的增加。例如，第一用户和第二用户在单个扇区中在特定同一时间实例可利用基本上相似的频率，只要它们相隔足够的空间距离即可。通过采用波束，SDMA可用在OFDM/OFDMA环境中。
在一个具体示例中，经波束成形的传输可被用于在OFDM/OFDMA环境中实现SDMA。位于一基站处的多个发射天线可被用于形成经波束成形的传输，它使用通常覆盖比使用单个发射天线的传输更窄的区域的“波束”。然而，在由波束覆盖的区域内的信噪干扰比(SINR)得到提高。扇区中未被波束覆盖的部分可称为空区。位于该空区内的移动设备将具有极低的SINR，从而导致性能降低还可能导致数据丢失。通过使用这种波束，相隔足够空间距离的用户就可在基本上相似的频率上通信，由此增加扇区内可被使用的维度的数目。然而，有很多并不期望用户使用SDMA的场合。例如，当期望有预编码时，或当期望有信道分集时，对于特定区域内的一些移动设备可能会导致性能降级。
                             概述
以下给出简要概述以提供对所要求权利的主题的某些方面的基本理解。此概述并非详尽综述，也并非旨在标识出关键性/决定性要素或者刻划所要求权利的主题的范围。其唯一目的是以简化形式给出某些概念作为在稍后给出的更详细描述的前序。
本文中详细描述的是有助于在无线通信环境中的前向链路上的资源分配的系统、方法、装置和物品。可维护指示关于哪些特定用户或接入终端可使用SDMA的码本。基于对该码本的分析，可维护第一和第二信道树，其中可使用SDMA的接入终端与相异信道树上的跳跃端口(hop-port)相关联。这使得这些相异的接入终端能够共享时频资源。关于并非是将使用SDMA的候选者的接入终端，这些接入终端可与指派给第一信道树并映射到未被映射至第二信道树上的跳跃端口的频率范围的跳跃端口相关联。
例如，本文中描述了一种用于在无线通信环境中分配资源的方法，其中该方法包括接收第一跳跃端口集合与频率范围之间的映射；以及确定是否将第二接入终端指派到在基本相似的时间实例期间被映射到至少同一频率范围的第二跳跃端口，该确定是根据与和该第一跳跃端口相关联的第一接入终端有关的特性来作出的。该方法还可包括：确定该第一接入终端是将使用空分多址(SDMA)的候选者；以及当该第二接入终端也是将使用SDMA的候选者时将该第二跳跃端口映射到该同一频率范围并映射该第二跳跃端口且使该第二终端与该第二跳跃端口关联。第一信道树可包括跳跃端口与频率范围之间根据第一跳跃置换的多个映射，并且第二信道树可包括跳跃端口与这些频率范围之间根据该第一跳跃置换的多个映射。该方法可另外包括：确定第一接入终端具有第一空间方向；确定第二接入终端具有第二空间方向；在第一时间段里将该第一接入终端映射到第一跳跃端口；以及在该第一时间段里将该第二接入终端映射到该第二跳跃端口。此外，该方法可包括接收来自第一接入终端的指示第一方向的量化值；以及基于该量化值使第一接入终端与第二跳跃端口关联，其中该量化值可选自码本。
此外，本文中公开了一种无线通信装置，其中该装置包括存储器，该存储器包括与两个接入终端是否为将在OFDM/OFDMA环境中使用SDMA的候选者有关的信息。该装置还可包括处理器，该处理器在这两个接入终端为将使用SDMA的候选者的情况下将这两个接入终端指派到在基本相似的时间被映射到扇区中基本相似的频率的两个跳跃端口。在一个示例中，第一信道树可包括多个跳跃端口与多个频率范围之间根据一跳跃置换的映射，并且处理器可根据该跳跃置换定义与第二信道树相关联的映射。
此外，本文中描述了一种用于在无线通信环境中管理频率资源的装置，其中该装置包括用于确定第一接入终端和第二接入终端为将使用SDMA的候选者的装置。该装置还可包括用于将该第一接入终端指派到第一跳跃端口并将该第二接入终端指派到第二跳跃端口的装置，该第一和第二跳跃端口被映射到基本相似的时频资源。该装置还可包括：用于分析包括该第一跳跃端口与这些时频资源之间的映射的第一信道树的装置；以及用于再第二信道树中定义该第二跳跃端口与这些时频资源之间的映射的装置。
另外，本文中公开了一种计算机可读介质，其中这种介质包括用于执行以下操作的指令：确定第一接入终端是将使用SDMA的候选者；将该第一接入终端指派到在第一信道树中映射至的一个或多个频率频调的一个或多个跳跃端口；确定第二接入终端是将使用SDMA的候选者；将该第二接入终端指派到一个或多个跳跃端口；以及将指派给该第二接入终端的这一个或多个跳跃端口映射到在第二信道树中被映射至指派给该一接入终端的一个或多个跳跃端口的一个或多个频率频调。
此外，本文中公开并描述了一种处理器，其中该处理器执行用于提升无线通信环境的性能的指令，这些指令包括：使第一接入终端关联到第一跳跃端口集合，该第一接入终端被配置成在OFDM/OFDMA环境中操作，该第一接入终端是将使用SDMA的候选者；将该第一跳跃端口集合映射到频率范围；使第二接入终端关联到第二跳跃端口集合，该第二接入终端被配置成在OFDM/OFDMA环境中操作，该第二接入终端是将使用SDMA的候选者；以及将该第二跳跃端口集合映射到该频率范围以使得该第一跳跃端口集合和该第二跳跃端口集合在基本相似的时间被映射到该频率范围。
为了实现前述及相关目标，本文联系以下描述和附图描述了某些示例性方面。然而，这些方面仅表示其中可采用所要求权利的主题的原理的各种方式中的少数几个，并且所要求权利的主题旨在包括所有这些方面及其等效方案。根据以下结合附图考虑的详细描述，其它优点和新颖性特征可变得显而易见。
                         附图简述
图1是有助于无线通信环境中的资源分配的系统的高层框图。
图2是信号树的表示。
图3是信道树的基节点的表示。
图4是两棵独立信道树的基节点的图示，该图示例示出了一种分配时频资源的具体方式。
图5是两棵独立信道树的基节点的图示，该图示例示出了一种分配时频资源的具体方式。
图6是两棵独立信道树的基节点的图示，该图示例示出了一种分配时频资源的具体方式。
图7是可用于在无线通信环境中分配资源的无线通信装置。
图8是示出了用于在无线通信环境中分配时频资源的方法的流程图。
图9是示出了用于根据码本的内容来更新信道树的方法的流程图。
图10是示出了用于在多棵信道树中将跳跃端口映射到的频率范围的方法的流程图。
图11是示例性无线通信系统。
图12是示例性无线通信系统的一示例。
图13是采用波束成形来增加无线通信环境中的系统容量的系统的一示例。
图14是采用波束成形来增加无线通信环境中的系统容量的系统的一示例。
图15是可结合本文所描述的各种系统和方法使用的无线通信环境的一示例。
                           详细描述
现在参照附图描述所要求权利的主题，其中贯穿始终使用相同附图标记来指代相似要素。出于说明的目的，在以下描述中阐述了众多特定细节以提供对所要求权利的主题的透彻理解。然而，此主题可在不用这些特定细节的情况下实践是显而易见的。在其它实例中，众所周知的结构和设备以框图形式示出以便帮助描述本发明。
此外，这里联系用户设备描述各个方面。用户设备也可称为系统、订户单元、订户站、移动站、移动设备、远程站、接入点、基站、远程终端、接入终端、用户终端、终端、用户代理、或用户装备。用户设备可以是蜂窝电话、无绳电话、会话发起协议(SIP)电话、无线本地环路(WLL)站、PDA、具有无线连接能力的手持式设备、或连接至无线调制解调器的其它处理设备。
此外，所要求权利的主题的方面可使用标准编程和/或工程技术实现为方法、装置或制品以产生用于控制计算机实现所要求权利的主题的各个方面的软件、固件、硬件或其任何组合。本文所用的术语“制品”旨在涵盖可从任何计算机可读设备、载波或介质访问的计算机程序。例如，计算机可读介质可包括但不限于磁存储设备(例如，硬盘、软盘、磁条……)、光盘(例如，压缩盘(CD)、数字多功能盘(DVD)……)、智能卡和闪存设备(例如，记忆卡、记忆棒、钥匙驱动器……)。另外，应当理解，载波可用于承载诸如那些在传送和接收语音邮件或在接入诸如蜂窝网的网络中使用的计算机可读电子数据。当然，本领域技术人员应当认识到，可对此配置作出许多更改而不会脱离本文所描述的范围或精神。
现在参看附图，图1示出了有助于资源分配以在通用无线通信环境中——尤其是在OFDM/OFDMA环境中——的前向链路上实现SDMA的系统100。该系统100包括可从特定扇区内的多个接入终端104-108接收数据的码本生成器102，其中这些接入终端104-108可分布在整个扇区中。例如，码本生成器102可使导频信号被提供给接入终端104-108，而这些接入终端104-108可生成与信道条件有关的数据，诸如信道质量指示(CQI)数据，并向该码本生成器102提供这些数据。虽然给出CQI作为示例，但是应当理解，可由接入终端104-108向码本生成器提供任何合适的反馈数据。至少部分地基于该反馈，码本生成器102可确定接入终端104-108中的每一个是否为使用SDMA、分集通信(信道分集)、预编码等的候选者。
利用该反馈，码本生成器102可利用或更新可包括允许经由SDMA调度用户设备的多个部分的码本110。例如，第一部分可包括波束成形权重以使得第一接入终端集合可相对于在该码本中的其它部分或其它码本中的其它波束成形权重上调度的其它接入终端地根据SDMA来调度。在一特定示例中，指派到第一部分的接入终端可与指派到第二部分的接入终端共享时频资源，因为这些接入终端是彼此相隔足够空间距离的。相反，指派到同一部分内的各个接入终端也许不可能共享时频资源而不在彼此其间导致相当量的串扰。码本110还可包括与用哪些波束来调度这多个接入终端104-108内并非SDMA候选者而由此不能与该扇区内的其它接入终端共享时频资源的那些接入终端有关的信息。例如，并非使用SDMA的候选者的接入终端或控制信道可能是为了信道分集、预编码、或接收广播数据而配置的，并由此不应当与在码本的那一部分中的其它接入终端共享时频资源。在一个特定示例中，码本生成器102可在其接收到来自接入终端104-108的分组时更新码本110(例如，码本110可在每分组的基础上更新)。
调度器112可接收码本110并分配无线通信环境内的资源。更具体地，调度器112可基于对码本110的分析将接入终端104-108映射到跳跃端口和/或指派跳跃置换(hop permutation)，并且还可将跳跃端口映射到特定频率。在一个具体示例中，每个跳跃端口可被映射到一16频调的频率区域。为了使得能在无线通信系统中使用SDMA，调度器112可分析两棵或更多相异的信道树，其中信道树是端口空间到可用频率区域的映射。信道树的基节点可对应于非重叠毗连频调，由此保证与该信道树相关的各个接入终端之间的正交性。如果两棵或多棵信道树与同一频率区域相关联，则与相异的树相关联的接入终端可用使它们共享时频资源的方式来调度。
调度器112可通过以若干相异方式使用两棵或更多信道树来分配时频资源，这将在以下更详细地描述。简言之，调度器112可将接入终端指派到在第一信道树上被映射至一频率范围的跳跃端口，而不将接入终端指派到第二信道树上的相应跳跃端口(这些端口映射到同一频率范围)。这样做可帮助维护相对于并非使用SDMA的候选者的接入终端的正交性，因为这些接入终端并未被调度为共享时频资源。调度器112还可将作为SDMA的候选者(在码本110的第一部分内)的接入终端指派到一个或多个跳跃端口，其中这些跳跃端口在第一信道树中被映射特定频率范围。此后，可使得作为使用SDMA的候选者的相异接入终端(在码本110的第二部分内)与在第二信道树上被映射到基本相似频率范围的跳跃端口相关联。
在一个示例中，这两棵或多棵信道树内跳跃端口到频率的映射可在调度好的置换期间以随机方式进行。此置换可有助于创生干扰分集，但是会对可伸缩性造成不利影响。在另一示例中，各棵信道树内跳跃端口到频率范围的映射可进行精确地对应。例如，在给定置换下，如果第一接入终端在第一信道树上被指派到第一跳跃端口集合，则对应接入终端在第二信道树上被指派到的第二跳跃端口集合，其中该第二跳跃端口集合在这些跳跃端口所映射到的频率的意义上对应于该第一跳跃端口集合。此外，对应集合内的跳跃端口可被映射到对应频率。换言之，除与并非SDMA模式候选者的接入终端相关联的跳跃端口之外，信道树可彼此镜像对称。在又一示例中，各信道树之间跳跃端口到频率范围的映射可被实现为对应性和随机性的组合。例如，如果第一接入终端在第一信道树上被指派到第一跳跃端口集合，则对应接入终端在第二信道树上可被指派到第二跳跃端口集合，其中该第二跳跃端口集合在这些跳跃端口所映射到的频率的意义上对应于该第一跳跃端口集合。然而，各跳跃端口集合内的各个跳跃端口可按随机方式映射到各个频率。因而，虽然在各棵信道树之间跳跃端口集合是对应的，但是这些集合内的各个跳跃端口并不对应。因而，调度器112可结合确定相对于接入终端104-108的通信的调度114来使用信道树的各种置换。
现在参看图2，它示出了可结合在OFDM/OFDMA无线通信环境内分配前向链路上的资源使用的示例性信道树结构200。树结构200表示端口空间到可用频率区域上的映射。树结构200的基节点202-216可对应于非重叠毗连频调，以使得在同一棵树内调度的所有接入终端将与正交性相关联。在常规OFDM/OFDMA系统中，可使用单棵树结构来调度扇区内的通信，其中在信道树内调度的接入终端将与信道正交性相关联。为了能够使用SDMA，可使用多棵信道树，其中相异树上的接入终端可利用基本相似的时频资源。
转到图3，它示出了由树结构200(图2)的基节点202-216表示的跳跃端口与频率区域300之间的映射的示例性图示。此映射可对应于一种特定置换，因为给定相异置换，跳跃端口可能会被映射到各个不同频率范围。具体地，树结构200可包括八个基节点202-216——相应地，八个跳跃端口在一个跳跃置换期间可被映射到落在可用频率区域内的八个不同频率范围。更详细地，在跳跃置换期间，第一跳跃端口可被映射到第三频率范围(fr3)，第二跳跃端口可被映射到第一频率范围(fr1)，第三跳跃端口可被映射到第六频率范围(fr6)，如此等等。这些映射可被随机地、伪随机地、或通过任何其它合适手段来指派。此外，这些映射可在特定时间间隔和/或根据置换调度被重新指派。还应当理解，这些映射使得与信道树200内的跳跃端口相关联的接入终端能够保持与正交信道相关(例如，可以维持正交性的方式创建频率范围)。此外，虽然示为树，但是应当认识到，信道树结构200可以矩阵形式或其它合适形式来保持以帮助在无线通信环境中调度接入终端。
现在参看图4，它通过使用这种信道树的基节点的表示400和402示出了在两棵相异信道树上指派/调度接入终端的一种示例性方式。如上所示，可生成包括能以SDMA模式操作的(例如，不等待广播传输、进行预编码、……)至少两个接入终端群集的码本。这些群集可通过接入终端指示优选波束以及通过反馈与这些优选波束相关联的CQI来创建。相应地，第一群集中的接入终端可与第二群集中的接入终端共享时频资源，而同一群集内的接入终端不应当共享时频资源。
表示400示出了第一信道树的基节点，其中定义了关于一个特定置换在跳跃端口与可用频率区域内的频率范围之间的映射。第一信道树可以是主树，其中不作为将在SDMA模式下操作的候选者的接入终端与在第一接入终端群集内的接入终端一起被调度/指派。因而，例如对于该置换，第一接入终端(将在SDMA模式下操作)可被指派到第一和第二跳跃端口(hp1和hp2)，这些端口分别被随机地映射到第三和第一频率范围(fr3和fr1)。本文所用的术语“随机”旨在涵盖跳跃端口到频率范围的真随机映射以及伪随机映射两者。第二接入终端(不作为将在SDMA模式下操作的候选者)可与第三和第四跳跃端口(hp3和hp4)相关联，这些端口可分别被随机地映射到第六和第八频率范围(fr6和fr8)。第三接入终端(将在SDMA模式下操作)可与第五、第六、第七和第八跳跃端口(hp5、hp6、hp7和hp8)相关联，这些端口可分别被随机地映射到第二、第七、第五和第四频率范围(fr2、fr7、fr5和fr4)。因此，第一信道树可包括与将在SDMA模式下操作的接入终端以及将不在SDMA模式下操作的接入终端相关联的跳跃端口，并且跳跃端口到频率范围的映射可以随机或伪随机方式来实现。此外，相异的用户可随时间推移被指派到不同跳跃端口，并且相同用户可保持与跳跃端口的关联，因为它们在跳跃置换之后被映射到相异频率。
表示402示出了第二信道树的基节点，该信道树可用于关于将在SDMA模式下操作的接入终端来调度通信。更具体而言，关于第二信道树调度/指派的接入终端可与关于第一信道树调度/指派的接入终端共享时频资源。例如，将在SDMA模式下操作的第四接入终端可被指派到第十和第十一跳跃端口，这些端口可被随机地指派到可用频率区域内除第六和第八频率范围(fr6和fr8)之外的任何合适的频率范围，因为这些范围是在第一信道树上为将不在SDMA模式下操作的接入终端预留的。在表示402中，第十和第十一跳跃端口(hp10和hp11)分别被随机地映射到第二和第一频率范围(fr2和fr1)。将在SDMA模式下操作的第五接入终端可被指派到第十二跳跃端口(hp12)，该端口被随机地映射到第七频率范围(fr7)，而将在SDMA模式下操作的第六接入终端可被指派到跳跃端口14-16，这些端口分别被随机地映射到第五、第三和第四频率范围(fr5、fr3和fr4)。跳跃端口与频率范围之间的这种随机映射为在SDMA模式下操作的接入终端提供了前向链路上的干扰分集，因为与相异信道树相关联的接入终端不会相对应。概言之，在跳跃置换期间，与两棵信道树相关联的跳跃端口可被随机地映射到频率范围，由此增强干扰分集。
现在转到图5，它示出了用于通过使用其基节点由图示500和502表示的两棵信道树来分配资源的另一示例性方式。表示500图示了第一信道树的基节点，其中跳跃端口与可用频率区域内的频率范围之间的映射是关于一个跳跃置换来定义的。在表示500中，跳跃端口集合可被指派给特定接入终端或接入终端集合。例如，第一跳跃端口集合504可包括第一和第二跳跃端口(hp1和hp2)，这些端口可被指派给第一接入终端。在示例性图示500和502中，第一接入终端并非将在SDMA模式下操作的候选者。hp1和hp2被示为正分别被随机地映射到第一和第三频率范围(fr1和fr3)。然而，应当理解，跳跃端口到频率范围的映射可根据接入终端的反馈、接入终端的操作模式、或任何其它合适的参数来确定。第二接入终端(将在SDMA模式下操作)可被指派到第二跳跃端口集合506，其中该集合506包括跳跃端口3-5(hp3、hp4、hp5)。这些跳跃端口分别被映射到第六、第七和第二频率范围。第一信道树还可包括与跳跃端口集合508有关的信息，其中该集合508包括跳跃端口6-8。这些跳跃端口被指派给将在SDMA模式下操作的第三接入终端，其中这些跳跃端口分别被映射到第七、第四和第五频率范围(fr7、fr4和fr5)。
由于SDMA模式涉及关于接入终端共享时频资源，因此可使用第二信道树(其基节点由图示502表示)。第二信道树可用于在跳跃置换期间在重叠频率上调度接入终端。例如，重叠频率上的接入终端可使用相异波束来进行数据的接收和传送，其中这些波束可有助于维护串扰的阈值水平。恰当波束的确定可基于与一个或多个接入终端相关联的空间特征(spatialsignature)来作出。如通过回顾图示502可认识到的，跳跃端口集合和映射对应于图示500内的跳跃端口集合和映射(例如，除关于指派给并非为SDMA模式调度的接入终端的跳跃端口之外，这两棵信道树的基层节点相对应)。更详细地，第四跳跃端口集合510对应于第一跳跃端口集合504。然而，由于第一跳跃端口集合504与将不在SDMA模式下操作的接入终端相关联，所以第四跳跃端口不被映射到频率范围，从而未被指派接入终端。第五跳跃端口集合512对应于第二跳跃端口集合506。即，第五跳跃端口集合512包括第十一、第十二和第十三跳跃端口，它们被映射到第二跳跃端口集合506内的跳跃端口在此跳跃置换期间所映射的频率范围(例如，第四接入终端与第五跳跃端口集合512相关联并与第二接入终端共享时频资源)。包括第十四、第十五和第十六跳跃端口(hp14、hp15和hp16)的第六跳跃端口集合514对应于第三跳跃端口集合(例如，第六跳跃端口集合514内的跳跃端口被映射到与关联于第三跳跃端口集合508内的跳跃端口的映射相对应的频率)。更详细地，在此置换期间，hp14、hp15和hp16被分别映射到fr7、fr4和fr5。将用户指派到相对应地映射的跳跃端口增加了系统的可伸缩性——但是，会对干扰分集产生不利影响。
参看图6，它示出了通过使用两棵信道树在无线通信环境中分配资源的相异方式。分别示出了第一和第二信道树的基节点的表示600和602，其中这些信道树可被调度器112(图1)用来调度无线环境中的通信。与第一信道树相关联的表示600显示跳跃端口集合可与接入终端相关联，并且对于每次跳跃置换，这些跳跃端口可或随机地或根据调度器112(图1)内合适的算法来指派。表示600基本上类似于图5的表示500，包括类似的跳跃端口集合(504-508)和类似的到频率范围的映射。
然而，第二信道树的基节点的表示602内所示的映射是以相异方式生成的。与第二信道树相关联的集合内跳跃端口的映射不是完全相同地对应于与第一信道树相关联的集合内跳跃端口的映射，而是能将与该第二信道树相关联的集合内的跳跃端口随机地映射到与该第一信道树内的对应集合相关联的频率范围。更详细地，表示602可包括第四跳跃端口集合510，它对应于表示600中的第一跳跃端口集合504。由于第一跳跃端口集合504与并非将在SDMA模式下操作的接入终端相关联，因此第四集合510内的跳跃端口并不被映射，而频率范围fr1和fr3仅由第一接入终端使用。第五跳跃端口集合512包括与第二跳跃端口集合506中的hp3-5相对应的hp11-13。由于hp3-5分别与fr6、fr8和fr2相关联，因此这些频率将被映射到hp11-13。然而，hp11-13可被随机地映射到这些频率范围——因此，例如，hp11可被映射到fr8，hp12可被映射到fr2，而hp13可被映射到fr6。因此，在第一和第二信道树之间，用户到跳跃端口集合的指派可相对应，但是各个集合内的跳跃端口可被随机地指派到频率范围。跳跃端口集合514可包括映射到fr5、fr4和fr7的hp14-hp16。这种在期望于其内使用SDMA的无线环境中分配资源的方式提供了可伸缩性以及跳跃端口之间的干扰分集。
现在转到图7，它示出了可用于在期望使用SDMA的无线通信环境中实现资源分配的无线通信装置700。该装置700可包括其内可保留和/或维护码本的存储器702。如上所述，码本可包括与接入终端是否为在特定时间实例使用SDMA的候选者(例如，这可在每分组的基础上确定)有关的数据。更具体地，码本可包括指示与接入终端相关联的空间方向的量化值。此外，存储器702可包括可用于在例如OFDM/OFDMA环境中调度通信的信道树的表示。信道树可包括跳跃端口与频率范围之间的映射，其中频率范围对于在SDMA模式下调度的接入终端是可重用的。另外，映射可根据各个跳跃置换来改变。
此信息可被提供给处理器704，该处理器由此可相应地在无线环境中调度通信。在一个示例中，处理器704可分析第一信道树并至少部分地基于第一信道树的内容来定义第二信道树内的映射。例如，第一信道树的内容可导致关于第二信道树中的频率范围的限制。类似地，可使用跳跃置换来定义第一信道树以及第二信道树中跳跃端口与频率范围之间的多个映射。
在另一个示例中，如上所暗指的，接入终端可在逐分组的基础上被调度到基本相似的时频资源之上的SDMA维度上。SDMA因子可以是由处理器704进行的函数调度。更具体地，处理器704可在后续传送中将一个或多个接入终端指派到与基本相似的时频块相对应的信道。在调度期间，复用阶可由处理器704完全控制，其中充分隔离的接入终端可在一个信道上被双重或三重调度，而其它接入终端可能不进行空间复用。在另一示例中，处理器704可结合通过跨频率和时间随机地重叠SDMA启用的接入终端以最优化干扰分集来使用。处理器704可将所有时频资源分割成不同复用阶的片段。对于具有复用阶N的片段，可以有N个信道集合，其中每个集合是正交的，但在集合之间是重叠的(参见图6)。重叠信道可在时间和频率上具有不同跳跃顺序，以使扇区内干扰分集最大化。
参看图8-11，示出了与分配资源以在OFDM/OFDMA环境中启用SDMA有关的方法。虽然出于简化说明的目的，这些方法被示出并描述为一系列动作，但是应当明白和理解，这些方法并不限于这些动作的次序，因为某些动作可根据所要求权利的主题以不同次序和/或与本文所示和所述的其它动作并发地进行。例如，本领域技术人员应当明白和理解，方法可替换地表示为诸如状态图等中的一系列相互关联的状态或事件。此外，并非所有所示动作都是实现根据一个或多个实施例的方法所必需的。
仅参看图8，它示出了用于在无线环境中分配资源的方法800。该方法800在802处开始，并且在804处接收第一跳跃端口与频率范围之间的映射。例如，此映射可在特定置换之后存在于第一信道树内，其可由调度器(调度器可与处理器相关联)接收。此外，跳跃端口可基于与这种跳跃端口相关联的接入终端或用户以及指派给其的其它跳跃端口及频率范围被映射到特定频率范围。在806处，分析指派给第一跳跃端口的接入终端。例如，可从接入终端处接收与特定波束、优选波束等的CQI有关的反馈。此外，虽然未示出，但是也可接收和分析来自其它接入终端的数据。
在808处，对关于接入终端是否为将使用SDMA的候选者作出确定。例如，如果接入终端正等待广播数据或正在分集模式下操作，则这种接入终端不会是将使用SDMA的候选者。类似地，如果接入终端正请求预编码，则这种接入终端不会是将在前向链路上使用SDMA的候选者。如果该接入终端并非将使用SDMA的候选者，则在810处，其它跳跃端口将不会被映射到第一跳跃端口所映射到的频率范围。这确保关于该接入终端所使用的信道的信道分集和正交性。如果接入终端是使用SDMA的候选者，则在812处，第二跳跃端口被映射到第一跳跃端口所映射到的频率范围。方法800在814处完成。
现在参看图9，它示出了用于结合在无线通信环境中分配资源使用码本的方法900。方法900在902处开始，并且在904处，一个或多个导频码元被提供给扇区内的接入终端。例如，当在SDMA模式下操作时，接入终端可指示优选波束(来自SDMA群集)并反馈与该优选波束相关联的CQI。在分块跳跃模式下可被周期性调度的CQI导频信道(F-CPICH)可被用于估计物理发射天线上的宽带频域信道响应。在906，基于接收自接入终端的反馈来维护码本。例如，来自码本条目的信号质量可基于CQI导频信道反馈来计算出。这些信号质量可结合使用户集群来使用(并由此维护码本)。更详细地，SDMA模式下的每个接入终端可报告优选波束索引，该索引被保持在码本内的特定SDMA群集内。对应于同一SDMA群集的接入终端被放置于基本相似的组中，其中该组内的用户被调度成使他们保持正交(例如，他们不重叠)。这是因为相同SDMA群集内的波束会具有相似的空间特性；因此，使用这些波束的接入终端很可能具有相似的空间特性且不应当重叠。在908处，第一和第二信道树基于码本的内容来更新。例如，同一组内的用户可在同一棵信道树上调度。不同组中的用户可共享时频资源，由此可在不同信道树上调度。方法900在910处结束。
转到图10，它示出了用于在无线通信环境中分配资源的方法1000。该方法1000在1002处开始，并且在1004处确定第一接入终端为使用SDMA的候选者。例如，可维护并分析码本以确定该接入终端为使用SDMA的候选者。在详细示例中，可确定接入终端在空间上与相异接入终端相隔足够距离以使用SDMA。在1006处，第一接入终端被指派到一个或多个跳跃端口，并且在1008处，这一个或多个跳跃端口在第一信道树中被映射到一个或多个频率范围。然而，应当理解，这些跳跃端口可在被指派给接入终端之前就被映射到频率，并且方法1000的动作的次序可取决于上下文和/或实现而改变。在1010处，确定第二接入终端为使用SDMA的候选者，并且在1012处，该第二接入终端被指派到一个或多个跳跃端口。在1014处，与该第二接入终端相关联的该一个或多个跳跃端口被映射到与第一接入终端相关联的那一个或多个跳跃端口所映射到的相同的频率范围。这使得该第一接入终端和该第二接入终端能够共享时频资源。然后，方法1000在1016处完成。
图11示出了示例性多址无线通信系统。多址无线通信系统1100包括例如蜂窝小区1102、1104和1106的多个蜂窝小区。在图11中所示的示例性系统中，各个蜂窝小区1102、1104和1106可包括包含多个扇区的接入点1150。这多个扇区是由各自负责与在该蜂窝小区的一部分中的接入终端通信的多组天线形成的。在蜂窝小区1102中，天线组1112、1114和1116各自对应于一不同扇区。在蜂窝小区1104中，天线组1118、1120和1122各自对应于一不同扇区。在蜂窝小区1106中，天线组1124、1126和1128各自对应于一不同扇区。
每个蜂窝小区包括在与每个接入点的一个或多个扇区通信的若干接入终端。例如，接入终端1130和1132在与接入点(或基站)1142通信，接入终端1134和1136在与接入点1144通信，而接入终端1138和1140在与接入点1146通信。
如图11中所示，每个接入终端1130、1132、1134、1136、1138和1140位于其相应蜂窝小区中与在同一蜂窝小区中的各个其它接入终端不同的部分中。另外，每个接入终端可与其正进行通信的相应天线组相距不同距离。这两个因素、且还因蜂窝小区中的环境和其它条件提供了导致每个接入终端与其所通信的相应天线组之间呈现不同信道条件的情形。
如本文所用的，接入点可以是用于与终端通信的固定站，并且还可称为基站、B节点或其它某个术语并包括其一部分或全部功能。接入终端还可称为用户装备(UE)、无线通信设备、终端、移动站、接入终端或其它某个术语并包括其一部分或全部功能。
在一个示例中，可在基站处使用例如固定或自适应扇区等的已知波束集合以提供SDMA。如果基站了解每个用户的最佳波束，则其可在不同用户要在不同波束上接收数据的情况下向这些不同用户分配同一信道。在另一示例中，系统1100可包括对应于无预编码的全向波束。基站将使用此波束进行广播或多播传输。在又一示例中，系统1100可在不用SDMA的情况下使用预编码——如果这种信道信息被报告给用户的话即为如此。
SDMA索引可能是可相对缓慢变化的参数。这可能由于用于计算SDMA索引的那个(些)索引是捕捉可由移动设备测量的用户空间统计而发生。此信息可被移动设备用来计算其所优选的波束并向基站指示该波束。即使没有功率分配，知道发射机处的信道也能增大容量，对于发射天线TM的数目大于接收天线的数目RM的那些系统而言尤甚。该容量增大是通过沿信道本征矢量的方向进行发射来获得的。反馈此信道需要开销。
SDMA在发射机处提供了足够丰富的波束集合，这允许在调度中有充分的灵活性。用户被调度到通过某种反馈机制向基站发信号通知的波束上。为实现高效率调度，发射机在特定波束被用于调度用户的情况下应具有关于每个用户的信道质量信息。
图12示出了示例性无线通信系统1200。三扇区基站1202包括多个天线组，一组包括1204和1206，另一组包括天线1208和1210，而第三组包括天线1212和1214。对每个天线组仅示出两个天线，但是对于每个天线组可使用更多或更少的天线。移动设备1216在与天线1212和1214通信，其中天线1212和1214通过前向链路1218向移送设备1216传送信息，并通过反向链路1220从移动设备1216接收信息。移动设备1222在与天线1204和1206通信，其中天线1204和1206通过前向链路1224向移送设备1222传送信息，并通过反向链路1226从移动设备1222接收信息。
每个天线组和/或它们被指定在其中通信的区域可称为基站1202的扇区。例如，天线组各自可被设计成对基站1202所覆盖的区域中的扇区中的移动设备进行通信。基站可以是用于与终端通信的固定站并且还可称为接入点、B节点或其它某个术语。移动设备还可称为移动站、用户装备(UE)、无线通信设备、终端、接入终端、用户设备、手机或其它某个术语。
SDMA可与诸如正交频分多址(OFDMA)系统等的频分系统一起使用。OFDMA系统将系统总带宽分割成多个正交子带。这些子带也被称为频调、载波、副载波、频段和/或频率信道。每个子带与可用数据调制的副载波相关联。OFDMA系统可使用时分和/或频分复用来实现多个用户设备的多个数据传输中的正交性。可对各用户设备组分配单独的子带，并且每个用户设备的数据传输可在分配给此用户设备的子带上发送。
图13示出了采用SDMA以增加无线通信环境中的系统容量的系统1300。系统1300可如本领域技术人员所理解地一样驻留在基站和/或用户设备中。系统1300包括接收机1302，该接收机从例如一个或多个接收天线接收信号并对所接收的信号执行典型动作(例如，滤波、放大、下变频、……)并数字化经调理信号以获得样本。解调器1304可解调接收到的导频码元并将其提供给处理器1306以进行信道估计。
处理器1306可以是专用于分析接收机组件1302接收到的信息和/或生成要由发射机1314传送的信息的处理器。处理器1306可以是控制系统1300的一个或多个部分的处理器、和/或分析接收机1302接收到的信息、生成要由发射机1314传送的信息、以及控制系统1300的一个或多个部分的处理器。系统1300可包括协调波束指派的优化组件1308。优化组件1308可被纳入到处理器1306中。应当理解，优化组件1308可包括结合将用户设备指派到波束来执行基于效用的分析的优化代码。就优化用户设备波束指派而言，该优化代码可结合执行推理和/或概率确定和/或基于统计的确定来使用基于人工智能的方法。
系统(用户设备)1300可另外包括存储器1310，该存储器可操作地耦合至处理器1306并存储与波束方向图信息有关的信息、包括与其有关的信息的查找表、以及与本文所描述的波束成形有关的任何其它合适信息。存储器1310可另外存储与生成查找表等相关联的协议，以使得系统1300可使用所存储的协议和/或算法来增大系统容量。将可理解，本文所描述的数据存储(例如，存储器)组件或可以是易失性存储器或可以是非易失性存储器，或可包括易失性和非易失性存储器两者。作为示例而非限定，非易失性存储器可包括只读存储器(ROM)、可编程ROM(PROM)、电可编程ROM(EPROM)、电可擦除ROM(EEPROM)、或闪存。易失性存储器可包括用作外部高速缓冲存储器的随机存取存储器(RAM)。作为示例而非限定，RAM有许多形式可用，诸如同步RAM(SRAM)、动态RAM(DRAM)、同步DRAM(SDRAM)、双数据率SDRAM(DDR SDRAM)、增强型SDRAM(ESDRAM)、同步链路DRAM(SLDRAM)和直接存储器总线RAM(DRRAM)。本主题系统和方法的存储器1310旨在包括而不限于这些以及任何其它合适类型的存储器。处理器1306连接到码元调制器1312和传送已调制信号的发射机1314。
图14示出了使用SDMA来增大无线通信环境中的系统容量的系统。系统1400包括具有接收机1410的基站1402，该接收机经由一个或多个接收天线1406从一个或多个用户设备1404接收信号并通过多个发射天线1408向一个或多个用户设备1404传送。在一个示例中，接收天线1406和发射天线1408可使用单个天线集合来实现。接收机1410可从接收天线1406接收信息并可操作地与解调接收到的信息的解调器1412相关联。如本领域技术人员将可理解的，接收机1410可是例如耙式接收机(例如，使用基带相关器分别处理各个多径信号分量的技术，…)、基于MMSE的接收机、或用于分离出向其指派的用户设备的某种其它合适的接收机。例如，可使用多个接收机(例如，每个接收机一个接收天线)，并且这些接收机可彼此通信以提供对用户数据更好的估计。已解调码元由类似于以上参照图13所描述的处理器的处理器1414来分析，并且可被耦合至存储与用户设备指派有关的信息、与其有关的查找表等的存储器1416。每个天线的接收机输出可由接收机1410和/或处理器1414联合处理。调制器1418可对信号进行复用以由发射机1420通过发射天线1408传送到用户设备1404。
基站1402还包括指派组件1422，该指派组件可以区别于处理器1414或与其整合的处理器，并且其可评价由基站1404服务的扇区中汇聚的所有用户设备，并可至少部分地基于各个用户设备的位置来将用户设备指派到波束。
图15示出了多址接入无线通信系统1500中的发射机和接收机。出于简化目的，该无线通信系统1500绘制了一个基站和一个用户设备；然而，应当理解，该系统可包括多于一个基站和/或多于一个用户设备，其中另加的基站和/或用户设备可与以下所描述的示例性基站和用户设备基本相类似或不同。另外，应当理解，该基站和/或该用户设备可采用本文所描述系统和/或方法来促进其间的无线通信。
在发射机系统1510处，从数据源1512将多个数据流的话务数据提供给发射(TX)数据处理器1514。在一个示例中，每个数据流可通过一相应发射天线来发射。TX数据处理器1514基于为数据流选择的特定编码方案对每个数据流的话务数据进行格式化、编码和交织以提供经编码的数据。例如，TX数据处理器1514可基于码元将送往哪个用户以及码元将从哪个天线发射来将波束成形权重施加到各数据流的码元。在某些实施例中，波束成形权重可基于指示接入点与接入终端之间传输路径的条件的信道响应信息来生成。该信道响应信息可使用由用户提供的CQI信息或信道估计来生成。此外，在调度好的传送的那些情形中，TX数据处理器1514可基于传送自用户的秩信息来选择分组格式。
可使用OFDM技术来将每个数据流的经编码数据与导频数据进行复用。该导频数据通常是以已知方式处理并可在接收机系统处用于估计信道响应的已知数据模式。经复用的导频和每个数据流的经编码数据随后基于为该数据流选择的特定调制方案(例如，BPSK、QSPK、M-PSK或M-QAM)被调制(例如，码元映射)以提供调制码元。每个数据流的数据率、编码和调制可由一经提供即由处理器1550执行提供的指令来确定。在某些实施例中，并行空间流的数目可根据传送自用户的秩信息而改变。
各个数据流的调制码元被提供给TX MIMO处理器1520，该处理器可进一步处理这些调制码元(例如，为OFDM)。TX MIMO处理器1520向NT个发射机(TMTR)1522a到1522t提供NT个码元流。例如，TX MIMO处理器1520可基于码元是送往哪个用户以及码元是从从哪个天线发射来根据该用户的信道响应信息将波束成形权重施加到各个数据流的码元。
每个发射机1522接收并处理相应的一个码元流以提供一个或多个模拟信号，并进一步对这些模拟信号进行调理(例如，放大、滤波、和上变频)以提供适于在MIMO信道上传送的已调制信号。来自发射机1522a到1522t的NT个已调制信号分别从NT个天线1524a到1524t发射。
在接收机系统1550处，所传送的已调制信号由NR个天线1552a到1552r接收，并且来自每个天线1552的接收到的信号被提供给相应的一个接收机(RCVR)1554。每个接收机1554对相应的一个接收到的信号进行调理(例如，滤波、放大、和下变频)、数字化经调理的信号以提供样本，并且进一步处理这些样本以提供相对应的“收到”码元流。
RX数据处理器1560随后从NR个接收机1554接收这NR个接收到的码元流并基于特定接收机处理技术进行处理以提供“检测出”的码元流的秩数。在以下更详细地描述由RX数据处理器1560进行的处理。每个检测出的码元流包括由对为相对应数据流传送的调制码元的估计构成的码元。RX数据处理器1560随后解调、解交织并解码每个检测出的码元流以恢复该数据流的话务数据。RX数据处理器1560进行的处理与发射机系统1510处TX MIMO处理器1520和TX MIMO处理器1514执行的处理互补。
由RX处理器1560生成的信道响应估计可被用于执行接收机处的空间、空/时处理、调节功率电平、改变调制率或方案、或者其它动作。RX处理器1560还可估计这些检测出的码元流的信噪干扰比(SNR)以及还可能有其它信道特性，并向处理器1570提供这些量值。RX数据处理器1560或处理器1570还可导出对系统的“有效”SNR的估计。处理器1570随后提供估计的信道信息(CSI)，该信息可包括与通信链路和/或接收到的数据流有关的各种类型的信息。例如，CSI可仅包括工作SNR。该CSI随后由还从数据源1576接收多个数据流的话务数据的TX数据处理器1538来处理，由调制器1580调制，由发射机1554a到1554r调理，并传回给发射机系统1510。
在发射机系统1510处，来自接收机系统1550的已调信号由天线1524接收，由接收机1522调理，由解调器1540解调，并由RX数据处理器1542处理以恢复出接收机系统报告的CSI。所报告的CSI随后被提供给处理器1530并用于(1)确定要对各个数据流使用的数据率及编码和调制方案，以及(2)生成对TX数据处理器1514和TX MIMO处理器1520的各种控制。
在接收机处，可使用各种技术来处理这NR个接收到的信号以检测这NT个传送的码元流。这些接收机处理技术可被分成两个主要类别：(i)空间和空时接收机处理技术(也称为均衡技术)；以及(ii)“逐次消零/均衡和干扰消去”接收机处理技术(也称为“逐次干扰消去”或“逐次消去”接收机处理技术)。
由这NT个发射天线和NR个接收天线形成的MIMO信道可被分解成Ns个独立信道，其中Ns≤min{NT，NR}。这Ns个独立信道中的每一个也可称为该MIMO信道的一个空间子信道(或传输信道)并对应于一个维数。
对于软件实现，本文所描述的技术可用执行本文所描述的功能的模块(例如，过程、函数等)来实现。软件代码可被存储在存储器单元中并由处理器执行。存储器单元可在处理器内实现，或可实现在处理器外部，在后一种情形中其可经由本领域中公知的各种手段通信地耦合至处理器。
应当理解，本文所描述的实施例可通过硬件、软件、固件、中间件、微代码或其任何组合来实现。对于硬件实现，接入点或接入终端内的各个处理单元可在一个或多个专用集成电路(ASIC)、数字信号处理器(DSP)、数字信道处理器件(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、处理器、控制器、微控制器、微处理器、设计成执行本文所描述的功能的其它电子单元、或其组合内实现。
当在软件、固件、中间件或微代码、程序代码或代码段中实现这些系统和/或方法时，它们可被存储在诸如存储组件的机器可读介质中。代码段可表示过程、函数、子程序、程序、例程、子例程、模块、软件包、类、或指令、数据结构或程序语句的任何组合。代码段可通过传递和/或接收信息、数据、自变量、参数或存储器内容来耦合至另一代码段或硬件电路。信息、自变量、参数、数据等可使用包括存储器共享、消息传递、令牌传递、网络传输等的任何合适手段来传递、转发或传送。
对于软件实现，本文所描述的技术可用执行本文所描述的功能的模块(例如，过程、函数等)来实现。软件代码可被存储在存储器单元中并由处理器执行。存储器单元可在处理器内实现，或实现于存储器外部，在后一种情形中其可经由本领域中公知的各种手段通信地耦合至处理器。
以上所描述的包括所要求权利的主题的示例。当然，出于描述此主题的目的而要描述组件或方法的每一种可构想到的组合是不可能的，但是本领域普通技术人员可认识到，许多进一步的组合和置换是可能的。因此，所要求权利的主题旨在涵盖落在所附权利要求的精神和范围内的所有这类变更、修改和变形。此外，就术语“包括”在本详细描述或权利要求中所使用的范畴而言，此术语旨在以与术语“包含”类似的方式作包含在内之解，正如“包含”在权利要求书中作为过渡词使用时所解释的那样。

Claims (24)

1.一种用于在无线通信环境中分配资源的方法，包括：
接收第一跳跃端口与频率范围之间的映射；以及
确定是否将第二接入终端指派到在基本相似的时间实例期间被映射到至少同一频率范围的第二跳跃端口，所述确定是根据与和所述第一跳跃端口相关联的第一接入终端有关的特性来作出的；
确定所述第一接入终端是将使用空分多址(SDMA)的候选者；以及
当所述第二接入终端也是将使用空分多址的候选者时映射所述第二跳跃端口并且使所述第二接入终端与所述第二跳跃端口关联。
2.如权利要求1所述的方法，其特征在于，第一信道树包括跳跃端口与频率范围之间的多个映射，所述第一信道树还包括所述第一跳跃端口，并且第二信道树包括跳跃端口与频率范围之间的多个映射，所述第二信道树还包括所述第二跳跃端口。
3.如权利要求1所述的方法，其特征在于，还包括：
确定所述第一接入终端并非是将使用空分多址的候选者；以及
防止所述第二跳跃端口的映射。
4.如权利要求1所述的方法，其特征在于，第一信道树包括跳跃端口与频率范围之间根据第一跳跃置换的多个映射，并且第二信道树包括跳跃端口与所述频率范围之间根据所述第一跳跃置换的多个映射。
5.如权利要求4所述的方法，其特征在于，还包括：
确定所述第一接入终端具有第一空间方向；
确定第二接入终端具有第二空间方向；
在第一时间段里将所述第一接入终端映射到所述第一跳跃端口；以及
在所述第一时间段里将所述第二接入终端映射到所述第二跳跃端口。
6.如权利要求5所述的方法，其特征在于，还包括：
使所述第一接入终端与所述第一信道树中的第一多个跳跃端口关联；以及
防止第三接入终端到所述第二信道树中所述第一多个跳跃端口的关联。
7.如权利要求6所述的方法，其特征在于，还包括：确定所述第三接入终端正在分集模式下操作，并且其中所述防止包括在所述第三接入终端正在所述分集模式下操作时防止关联。
8.如权利要求6所述的方法，其特征在于，每个跳跃端口被映射到一频率范围，所述方法还包括：
将所述第一多个跳跃端口随机地映射到所述频率范围内的频率；以及
将第二多个跳跃端口随机地映射到所述频率范围内的频率。
9.如权利要求5所述的方法，其特征在于，还包括：
接收来自所述第一接入终端的指示所述第一方向的量化值；以及
基于所述量化值使所述第一接入终端与所述第一跳跃端口关联。
10.如权利要求9所述的方法，其特征在于，所述量化值是选自码本。
11.如权利要求1所述的方法，其特征在于，还包括从所述第一接入终端接收信道信息，并且其中所述确定包括基于所述信道信息进行确定。
12.如权利要求11所述的方法，其特征在于，所述信道信息包括信道质量指示。
13.一种用于在无线通信环境中管理频率资源的装置，包括：
用于确定第一接入终端和第二接入终端为将使用空分多址的候选者的装置；以及
用于将所述第一接入终端指派到第一跳跃端口并将所述第二接入终端指派到第二跳跃端口的装置，所述第一和第二跳跃端口被映射到基本相似的时频资源。
14.如权利要求13所述的装置，其特征在于，还包括：
用于分析包括所述第一跳跃端口与所述时频资源之间的映射的第一信道树的装置；以及
用于在第二信道树中定义所述第二跳跃端口与所述时频资源之间的映射的装置。
15.如权利要求13所述的装置，其特征在于，还包括：
用于维护码本的装置，所述码本包括与指示和所述第一接入终端相关联的第一空间方向的量化值有关的信息；以及
用于根据所述量化值来定义与所述第一信道树和所述第二信道树相关联的映射的装置。
16.如权利要求13所述的装置，其特征在于，还包括：
用于确定第三接入终端并非是将使用空分多址的候选者的装置；以及
用于确保所述第三接入终端不与其它接入终端共享时频资源的装置。
17.如权利要求13所述的装置，其特征在于，还包括：
用于将第一多个跳跃端口映射到一频率范围内的频率集合的装置；以及
用于将第二多个跳跃端口映射到所述频率范围内的所述频率集合以使得所述第一多个跳跃端口内的跳跃端口与所述第二多个跳跃端口内相对应的跳跃端口被映射到所述频率集合内相对应的频率的装置。
18.如权利要求13所述的装置，其特征在于，还包括：
用于将第一多个跳跃端口随机地映射到一频率范围内的频率集合的装置；以及
用于将与所述第一多个跳跃端口相对应的第二多个跳跃端口随机地映射到所述频率范围内的所述频率集合以使得所述第一多个跳跃端口和所述第二多个跳跃端口内相对应的跳跃端口不被映射到基本相似的频率的装置。
19.一种用于在无线通信环境中分配资源的设备，包括：
用于确定第一接入终端是将使用空分多址的候选者的装置；
用于将所述第一接入终端指派到在第一信道树中被映射至一个或多个频率频调的一个或多个跳跃端口的装置；
用于确定第二接入终端是将使用空分多址的候选者的装置；
用于将所述第二接入终端指派到一个或多个跳跃端口的装置；以及
用于将与所述第二接入终端相关联的所述一个或多个跳跃端口映射到与所述第一接入终端相关联的所述一个或多个跳跃端口所映射到的相同的频率范围的装置。
20.如权利要求19所述的设备，其特征在于，还包括用于确定所述第一接入终端在空间上与所述第二接入终端相隔足够距离以使所述第一接入终端与所述第二接入终端能共享时频资源的装置。
21.如权利要求19所述的设备，其特征在于，还包括：
用于确定第三接入终端并非是将使用空分多址的候选者的装置；
用于将所述第三接入终端指派到所述第一信道树内的一个或多个跳跃端口的装置；以及
用于确保所述第二信道树内与所述第一信道树内关联于所述第三接入终端的跳跃端口相对应的跳跃端口不被指派给相异的接入终端的装置。
22.如权利要求21所述的设备，其特征在于，还包括：
用于将与所述第一接入终端相关联的所述一个和多个跳跃端口随机地映射到所述一个或多个频率频调的装置；以及
用于将与所述第二接入终端相关联的所述一个和多个跳跃端口随机地映射到所述一个或多个频率频调的装置。
23.一种用于增强无线通信环境的性能的设备，包括：
用于使第一接入终端关联到第一跳跃端口集合的装置，所述第一接入终端被配置成在OFDM/OFDMA环境中操作，所述第一接入终端是将使用空分多址的候选者；
用于将所述第一跳跃端口集合映射到频率范围的装置；
用于使第二接入终端关联到第二跳跃端口集合的装置，所述第二接入终端被配置成在OFDM/OFDMA环境中操作，所述第二接入终端是将使用空分多址的候选者；以及
用于将所述第二跳跃端口集合映射到所述频率范围以使得所述第一跳跃端口集合和所述第二跳跃端口集合在基本相似的时间被映射到所述频率范围的装置。
24.如权利要求23所述的设备，其特征在于，还包括用于确保所述第一和第二接入终端在空间上相隔阈值距离的装置。
CN2006800402484A 2005-10-27 2006-10-27 Sdma资源管理 Active CN101297529B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/261,837 2005-10-27
US11/261,837 US8693405B2 (en) 2005-10-27 2005-10-27 SDMA resource management
PCT/US2006/060327 WO2007051181A1 (en) 2005-10-27 2006-10-27 Sdma resource management

Publications (2)

Publication Number Publication Date
CN101297529A CN101297529A (zh) 2008-10-29
CN101297529B true CN101297529B (zh) 2012-07-04

Family

ID=37744369

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2006800402484A Active CN101297529B (zh) 2005-10-27 2006-10-27 Sdma资源管理

Country Status (16)

Country Link
US (1) US8693405B2 (zh)
EP (1) EP1941692B1 (zh)
JP (1) JP4694628B2 (zh)
KR (1) KR100979398B1 (zh)
CN (1) CN101297529B (zh)
AR (1) AR056599A1 (zh)
AU (1) AU2006305766A1 (zh)
BR (1) BRPI0617899A2 (zh)
CA (1) CA2625713C (zh)
ES (1) ES2561943T3 (zh)
IL (1) IL190762A0 (zh)
NO (1) NO20082347L (zh)
NZ (1) NZ567292A (zh)
RU (1) RU2407156C2 (zh)
TW (1) TWI348877B (zh)
WO (1) WO2007051181A1 (zh)

Families Citing this family (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9130810B2 (en) 2000-09-13 2015-09-08 Qualcomm Incorporated OFDM communications methods and apparatus
US7295509B2 (en) 2000-09-13 2007-11-13 Qualcomm, Incorporated Signaling method in an OFDM multiple access system
US9148256B2 (en) 2004-07-21 2015-09-29 Qualcomm Incorporated Performance based rank prediction for MIMO design
US9137822B2 (en) 2004-07-21 2015-09-15 Qualcomm Incorporated Efficient signaling over access channel
US8098632B2 (en) * 2005-01-21 2012-01-17 Samsung Electronics Co., Ltd. Apparatus and method for downlink scheduling in a SDMA-enabled OFDMA wireless network
US9246560B2 (en) * 2005-03-10 2016-01-26 Qualcomm Incorporated Systems and methods for beamforming and rate control in a multi-input multi-output communication systems
US9154211B2 (en) 2005-03-11 2015-10-06 Qualcomm Incorporated Systems and methods for beamforming feedback in multi antenna communication systems
US8446892B2 (en) 2005-03-16 2013-05-21 Qualcomm Incorporated Channel structures for a quasi-orthogonal multiple-access communication system
US9520972B2 (en) 2005-03-17 2016-12-13 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9143305B2 (en) 2005-03-17 2015-09-22 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9461859B2 (en) 2005-03-17 2016-10-04 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9184870B2 (en) 2005-04-01 2015-11-10 Qualcomm Incorporated Systems and methods for control channel signaling
US9036538B2 (en) 2005-04-19 2015-05-19 Qualcomm Incorporated Frequency hopping design for single carrier FDMA systems
US9408220B2 (en) 2005-04-19 2016-08-02 Qualcomm Incorporated Channel quality reporting for adaptive sectorization
US8565194B2 (en) 2005-10-27 2013-10-22 Qualcomm Incorporated Puncturing signaling channel for a wireless communication system
US8611284B2 (en) 2005-05-31 2013-12-17 Qualcomm Incorporated Use of supplemental assignments to decrement resources
US8879511B2 (en) 2005-10-27 2014-11-04 Qualcomm Incorporated Assignment acknowledgement for a wireless communication system
US8462859B2 (en) 2005-06-01 2013-06-11 Qualcomm Incorporated Sphere decoding apparatus
US9179319B2 (en) 2005-06-16 2015-11-03 Qualcomm Incorporated Adaptive sectorization in cellular systems
US8599945B2 (en) 2005-06-16 2013-12-03 Qualcomm Incorporated Robust rank prediction for a MIMO system
US8885628B2 (en) 2005-08-08 2014-11-11 Qualcomm Incorporated Code division multiplexing in a single-carrier frequency division multiple access system
US20070041457A1 (en) 2005-08-22 2007-02-22 Tamer Kadous Method and apparatus for providing antenna diversity in a wireless communication system
US9209956B2 (en) 2005-08-22 2015-12-08 Qualcomm Incorporated Segment sensitive scheduling
US8644292B2 (en) 2005-08-24 2014-02-04 Qualcomm Incorporated Varied transmission time intervals for wireless communication system
US9136974B2 (en) 2005-08-30 2015-09-15 Qualcomm Incorporated Precoding and SDMA support
US9210651B2 (en) * 2005-10-27 2015-12-08 Qualcomm Incorporated Method and apparatus for bootstraping information in a communication system
US9144060B2 (en) 2005-10-27 2015-09-22 Qualcomm Incorporated Resource allocation for shared signaling channels
US8045512B2 (en) 2005-10-27 2011-10-25 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US8477684B2 (en) 2005-10-27 2013-07-02 Qualcomm Incorporated Acknowledgement of control messages in a wireless communication system
US9225488B2 (en) 2005-10-27 2015-12-29 Qualcomm Incorporated Shared signaling channel
US9172453B2 (en) 2005-10-27 2015-10-27 Qualcomm Incorporated Method and apparatus for pre-coding frequency division duplexing system
US8582509B2 (en) 2005-10-27 2013-11-12 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US9088384B2 (en) 2005-10-27 2015-07-21 Qualcomm Incorporated Pilot symbol transmission in wireless communication systems
EP1784032A1 (en) * 2005-11-04 2007-05-09 Alcatel Lucent Method for performing user allocation in SDMA systems, and corresponding base station
US8582548B2 (en) 2005-11-18 2013-11-12 Qualcomm Incorporated Frequency division multiple access schemes for wireless communication
US8045992B2 (en) * 2006-03-20 2011-10-25 Intel Corporation Uplink and downlink control signaling in wireless networks
TW201528739A (zh) * 2006-05-09 2015-07-16 Interdigital Tech Corp 通佣陸地無線存取可變反饋
US8780936B2 (en) * 2006-05-22 2014-07-15 Qualcomm Incorporated Signal acquisition for wireless communication systems
JP4988834B2 (ja) * 2006-05-29 2012-08-01 サムスン エレクトロニクス カンパニー リミテッド 周波数分割多重方式の無線通信システムにおける周波数リソースの割り当て方法及び装置
KR100961747B1 (ko) * 2006-06-27 2010-06-07 삼성전자주식회사 무선 통신 시스템의 자원 할당 장치 및 방법
DE102007003187A1 (de) * 2007-01-22 2008-10-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Erzeugen eines zu sendenden Signals oder eines decodierten Signals
US9137821B2 (en) * 2007-05-02 2015-09-15 Qualcomm Incorporated Flexible signaling of resources on a control channel
US8130780B2 (en) * 2007-06-15 2012-03-06 Futurewei Technologies, Inc. Method and apparatus for assigning resources in a wireless system with multiple regions
US8614985B2 (en) * 2007-06-15 2013-12-24 Futurewei Technologies, Inc. Method and apparatus for sharing a group resource in a wireless SDMA system
US20080310359A1 (en) * 2007-06-15 2008-12-18 Mcbeath Sean Michael Method and Apparatus for Sharing Resources in a Wireless System
US8265029B2 (en) 2007-06-15 2012-09-11 Futurewei Technologies, Inc. Method and apparatus for assigning resources in a wireless system
WO2009021348A1 (en) * 2007-08-10 2009-02-19 Alcatel Shanghai Bell Co., Ltd. Method for allocating resource of mobile user and resource allocating dispatcher using such policy
US9544911B2 (en) * 2007-08-10 2017-01-10 Futurewei Technologies, Inc. System and method for assigning communications resources in a wireless communications system
WO2009022709A1 (ja) * 2007-08-13 2009-02-19 Sharp Kabushiki Kaisha 無線通信システム、無線通信方法、無線通信装置、受信装置およびプログラム
US8325671B2 (en) * 2007-09-06 2012-12-04 Qualcomm Incorporated Methods and apparatus for improved utilization of air link resources in a wireless communications system including a multi-antenna element base station
US8190165B2 (en) * 2007-09-21 2012-05-29 Future Wei Technologies, Inc. System and method for utility-based scheduling for space division multiple access (SDMA) on an uplink of a wireless communications network
US8254996B2 (en) * 2007-11-05 2012-08-28 Hewlett-Packard Development Company, L.P. Systems and methods for managing access channels
US8254942B2 (en) * 2007-11-27 2012-08-28 Futurewei Technologies, Inc. System and method for resource allocation in a wireless communications system
US8259662B2 (en) * 2008-02-19 2012-09-04 Futurewei Technologies Method and apparatus for assigning persistent resources dynamically in a wireless communication system
JP5109707B2 (ja) * 2008-02-19 2012-12-26 コニカミノルタビジネステクノロジーズ株式会社 定着装置及び画像形成装置
CN102017583B (zh) 2008-04-29 2014-09-10 苹果公司 多天线波束形成蜂窝网络的改进的性能
CN104104424B (zh) 2008-05-09 2017-11-28 苹果公司 用于支持蜂窝网络中天线波束形成的系统和方法
US8743793B2 (en) * 2008-07-14 2014-06-03 Qualcomm Incorporated Systems and methods for providing a separate contention window allowing allocations for pending uplink SDMA transmission opportunities
US8520537B2 (en) * 2008-08-08 2013-08-27 Futurewei Technologies, Inc. System and method for synchronized and coordinated beam switching and scheduling in a wireless communications system
KR101441147B1 (ko) 2008-08-12 2014-09-18 엘지전자 주식회사 무선 통신 시스템에서 ｓｒ 전송 방법
US8676133B2 (en) * 2008-09-19 2014-03-18 Qualcomm Incorporated Reference signal design for LTE A
JP5189460B2 (ja) * 2008-10-30 2013-04-24 株式会社エヌ・ティ・ティ・ドコモ 移動通信システムにおける基地局装置、ユーザ装置及び方法
US8396035B2 (en) * 2009-04-24 2013-03-12 Futurewei Technologies, Inc. System and method for communications using time-frequency space enabled coordinated beam switching
US8503360B2 (en) * 2009-06-26 2013-08-06 Qualcomm Incorporated Method and apparatus for facilitating multi-user joint transmit-receive beamforming
US8638761B2 (en) * 2010-10-06 2014-01-28 Qualcomm Incorporated Low-latency interleaving for low-density parity-check (LDPC) coding
JP5576240B2 (ja) * 2010-10-27 2014-08-20 京セラ株式会社 基地局及び通信システム並びに基地局での送信指向性の制御方法
KR101653858B1 (ko) * 2010-12-02 2016-09-02 인터디지탈 패튼 홀딩스, 인크 간섭 예측을 사용하여 무선 통신에서 채널 품질 표시 피드백 정확도를 향상시키는 시스템 및 방법
CN102811119B (zh) 2011-06-01 2014-12-10 华为技术有限公司 传输信道信息的方法、设备和系统
CA2859692A1 (en) 2011-12-23 2013-06-27 Fujitsu Limited Method and apparatus for resource mapping of a physical downlink control channel
US10187474B2 (en) * 2012-08-08 2019-01-22 Samsung Electronics Co., Ltd. Method and device for resource sharing between devices
RU2638544C2 (ru) * 2016-06-03 2017-12-14 Фудзицу Лимитед Способ и устройство для отображения ресурсов физического канала управления нисходящей линии связи
CN110582116B (zh) * 2018-06-08 2023-06-20 上海华为技术有限公司 调度时频资源的方法和装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1636346A (zh) * 2002-01-08 2005-07-06 高通股份有限公司 Mimo－ofdm通信系统的资源分配

Family Cites Families (860)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4393276A (en) 1981-03-19 1983-07-12 Bell Telephone Laboratories, Incorporated Fourier masking analog signal secure communication system
FR2527871B1 (fr) 1982-05-27 1986-04-11 Thomson Csf Systeme de radiocommunications, a sauts de frequence
SU1320883A1 (ru) 1985-02-06 1987-06-30 Предприятие П/Я Р-6707 Устройство дл восстановлени временных интервалов цифровых сигналов,принимаемых из канала с ограниченной полосой пропускани
FR2584884B1 (fr) 1985-07-09 1987-10-09 Trt Telecom Radio Electr Procede et dispositif de recherche de canal libre pour un systeme de radio mobile
JPS6216639A (ja) 1985-07-16 1987-01-24 Kokusai Denshin Denwa Co Ltd <Kdd> 秘話音声信号送出装置
GB2180127B (en) 1985-09-04 1989-08-23 Philips Electronic Associated Method of data communication
JPS6290045A (ja) 1985-10-16 1987-04-24 Kokusai Denshin Denwa Co Ltd <Kdd> Ｆｄｍａ通信方式における周波数割当方式
US5008900A (en) 1989-08-14 1991-04-16 International Mobile Machines Corporation Subscriber unit for wireless digital subscriber communication system
FR2652452B1 (fr) 1989-09-26 1992-03-20 Europ Agence Spatiale Dispositif d'alimentation d'une antenne a faisceaux multiples.
JPH04111544A (ja) 1990-08-31 1992-04-13 Nippon Telegr & Teleph Corp <Ntt> 無線チャネル割当方法
US5257399A (en) 1990-11-28 1993-10-26 Telefonaktiebolaget L M Ericsson Multiple access handling in a cellular communications system
US5253270A (en) 1991-07-08 1993-10-12 Hal Communications Apparatus useful in radio communication of digital data using minimal bandwidth
US5455839A (en) 1991-12-27 1995-10-03 Motorola, Inc. Device and method for precoding
JP2904986B2 (ja) 1992-01-31 1999-06-14 日本放送協会 直交周波数分割多重ディジタル信号送信装置および受信装置
US5384810A (en) 1992-02-05 1995-01-24 At&T Bell Laboratories Modulo decoder
US5363408A (en) 1992-03-24 1994-11-08 General Instrument Corporation Mode selective quadrature amplitude modulation communication system
US5282222A (en) 1992-03-31 1994-01-25 Michel Fattouche Method and apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum
GB9209027D0 (en) 1992-04-25 1992-06-17 British Aerospace Multi purpose digital signal regenerative processing apparatus
US5268694A (en) 1992-07-06 1993-12-07 Motorola, Inc. Communication system employing spectrum reuse on a spherical surface
FR2693861A1 (fr) 1992-07-16 1994-01-21 Philips Electronique Lab Récepteur de signaux à répartition multiplexée de fréquences orthogonales muni d'un dispositif de synchronisation de fréquences.
US5768276A (en) 1992-10-05 1998-06-16 Telefonaktiebolaget Lm Ericsson Digital control channels having logical channels supporting broadcast SMS
US5604744A (en) 1992-10-05 1997-02-18 Telefonaktiebolaget Lm Ericsson Digital control channels having logical channels for multiple access radiocommunication
US5404355A (en) 1992-10-05 1995-04-04 Ericsson Ge Mobile Communications, Inc. Method for transmitting broadcast information in a digital control channel
US5603081A (en) 1993-11-01 1997-02-11 Telefonaktiebolaget Lm Ericsson Method for communicating in a wireless communication system
JP2942913B2 (ja) 1993-06-10 1999-08-30 ケイディディ株式会社 相手認証／暗号鍵配送方式
CA2165342C (en) 1993-06-18 2005-11-15 Brian K. Butler Method and apparatus for determining the data rate of a received signal
US5870393A (en) 1995-01-20 1999-02-09 Hitachi, Ltd. Spread spectrum communication system and transmission power control method therefor
US6501810B1 (en) 1998-10-13 2002-12-31 Agere Systems Inc. Fast frame synchronization
US5594738A (en) 1993-10-18 1997-01-14 Motorola, Inc. Time slot allocation method
ZA948134B (en) 1993-10-28 1995-06-13 Quaqlcomm Inc Method and apparatus for performing handoff between sectors of a common base station
US5410538A (en) 1993-11-09 1995-04-25 At&T Corp. Method and apparatus for transmitting signals in a multi-tone code division multiple access communication system
SG48266A1 (en) 1993-12-22 1998-04-17 Philips Electronics Nv Multicarrier frequency hopping communications system
US5465253A (en) 1994-01-04 1995-11-07 Motorola, Inc. Method and apparatus for demand-assigned reduced-rate out-of-band signaling channel
US5469471A (en) 1994-02-01 1995-11-21 Qualcomm Incorporated Method and apparatus for providing a communication link quality indication
GB9402942D0 (en) 1994-02-16 1994-04-06 Northern Telecom Ltd Base station antenna arrangement
US5513379A (en) 1994-05-04 1996-04-30 At&T Corp. Apparatus and method for dynamic resource allocation in wireless communication networks utilizing ordered borrowing
US5603096A (en) 1994-07-11 1997-02-11 Qualcomm Incorporated Reverse link, closed loop power control in a code division multiple access system
US5583869A (en) 1994-09-30 1996-12-10 Motorola, Inc. Method for dynamically allocating wireless communication resources
PL178218B1 (pl) 1994-10-27 2000-03-31 Ibm Sposób i urządzenie do bezpiecznej identyfikacji ruchomego użytkownika w sieci komunikacyjnej
JP3437291B2 (ja) 1994-11-14 2003-08-18 キヤノン株式会社 再生装置および再生方法
US6169910B1 (en) 1994-12-30 2001-01-02 Focused Energy Holding Inc. Focused narrow beam communication system
US5684491A (en) 1995-01-27 1997-11-04 Hazeltine Corporation High gain antenna systems for cellular use
JPH08288927A (ja) 1995-04-17 1996-11-01 Oki Electric Ind Co Ltd スペクトル拡散通信方式及びスペクトル拡散通信装置
US5612978A (en) 1995-05-30 1997-03-18 Motorola, Inc. Method and apparatus for real-time adaptive interference cancellation in dynamic environments
US6215983B1 (en) 1995-06-02 2001-04-10 Trw Inc. Method and apparatus for complex phase equalization for use in a communication system
US6018317A (en) 1995-06-02 2000-01-25 Trw Inc. Cochannel signal processing system
US6535666B1 (en) 1995-06-02 2003-03-18 Trw Inc. Method and apparatus for separating signals transmitted over a waveguide
US5726978A (en) 1995-06-22 1998-03-10 Telefonaktiebolaget L M Ericsson Publ. Adaptive channel allocation in a frequency division multiplexed system
US6154484A (en) 1995-09-06 2000-11-28 Solana Technology Development Corporation Method and apparatus for embedding auxiliary data in a primary data signal using frequency and time domain processing
US5815488A (en) 1995-09-28 1998-09-29 Cable Television Laboratories, Inc. Multiple user access method using OFDM
JPH09139725A (ja) 1995-11-16 1997-05-27 Matsushita Electric Ind Co Ltd 多重通信装置
DE69633705T2 (de) 1995-11-16 2006-02-02 Ntt Mobile Communications Network Inc. Verfahren zum Erfassen eines digitalen Signals und Detektor
JP2812318B2 (ja) 1995-11-29 1998-10-22 日本電気株式会社 スペクトラム拡散通信方法及び装置
US5887023A (en) 1995-11-29 1999-03-23 Nec Corporation Method and apparatus for a frequency hopping-spread spectrum communication system
US5815116A (en) 1995-11-29 1998-09-29 Trw Inc. Personal beam cellular communication system
KR0150275B1 (ko) 1995-12-22 1998-11-02 양승택 멀티캐스트 통신의 폭주 제어방법
EP0786889B1 (en) 1996-02-02 2002-04-17 Deutsche Thomson-Brandt Gmbh Method for the reception of multicarrier signals and related apparatus
US6088592A (en) 1996-03-25 2000-07-11 Airnet Communications Corporation Wireless system plan using in band-translators with diversity backhaul to enable efficient depolyment of high capacity base transceiver systems
US6134215A (en) 1996-04-02 2000-10-17 Qualcomm Incorpoated Using orthogonal waveforms to enable multiple transmitters to share a single CDM channel
US5822368A (en) 1996-04-04 1998-10-13 Lucent Technologies Inc. Developing a channel impulse response by using distortion
JPH09281508A (ja) 1996-04-12 1997-10-31 Semiconductor Energy Lab Co Ltd 液晶表示装置およびその作製方法
GB9609148D0 (en) 1996-05-01 1996-07-03 Plessey Telecomm Multi-party communication
US5790537A (en) 1996-05-15 1998-08-04 Mcgill University Interference suppression in DS-CDMA systems
EP0807989B1 (en) 1996-05-17 2001-06-27 Motorola Ltd Devices for transmitter path weights and methods therefor
US5926470A (en) 1996-05-22 1999-07-20 Qualcomm Incorporated Method and apparatus for providing diversity in hard handoff for a CDMA system
GB9611146D0 (en) 1996-05-29 1996-07-31 Philips Electronics Nv Method of, and system for, transmitting messages
US5732113A (en) 1996-06-20 1998-03-24 Stanford University Timing and frequency synchronization of OFDM signals
KR980007105A (ko) 1996-06-28 1998-03-30 김광호 이동국 송신전력 제어방법
US6909797B2 (en) 1996-07-10 2005-06-21 R2 Technology, Inc. Density nodule detection in 3-D digital images
US6058309A (en) 1996-08-09 2000-05-02 Nortel Networks Corporation Network directed system selection for cellular and PCS enhanced roaming
US6141317A (en) 1996-08-22 2000-10-31 Tellabs Operations, Inc. Apparatus and method for bandwidth management in a multi-point OFDM/DMT digital communications system
US6233456B1 (en) 1996-09-27 2001-05-15 Qualcomm Inc. Method and apparatus for adjacent coverage area handoff in communication systems
JP3444114B2 (ja) 1996-11-22 2003-09-08 ソニー株式会社 通信方法、基地局及び端末装置
US5956642A (en) 1996-11-25 1999-09-21 Telefonaktiebolaget L M Ericsson Adaptive channel allocation method and apparatus for multi-slot, multi-carrier communication system
US6061337A (en) 1996-12-02 2000-05-09 Lucent Technologies Inc. System and method for CDMA handoff using telemetry to determine the need for handoff and to select the destination cell site
EP0848563A3 (en) 1996-12-11 2000-01-05 Texas Instruments Incorporated Improvements in or relating to telecommunication systems
KR100221336B1 (ko) 1996-12-28 1999-09-15 전주범 직교 주파수 분할 다중화 수신 시스템의 프레임 동기 장치 및 그 방법
US5953325A (en) 1997-01-02 1999-09-14 Telefonaktiebolaget L M Ericsson (Publ) Forward link transmission mode for CDMA cellular communications system using steerable and distributed antennas
US6232918B1 (en) 1997-01-08 2001-05-15 Us Wireless Corporation Antenna array calibration in wireless communication systems
US6173007B1 (en) 1997-01-15 2001-01-09 Qualcomm Inc. High-data-rate supplemental channel for CDMA telecommunications system
US5933421A (en) 1997-02-06 1999-08-03 At&T Wireless Services Inc. Method for frequency division duplex communications
US5920571A (en) 1997-02-07 1999-07-06 Lucent Technologies Inc. Frequency channel and time slot assignments in broadband access networks
US6335922B1 (en) 1997-02-11 2002-01-01 Qualcomm Incorporated Method and apparatus for forward link rate scheduling
WO1998037706A2 (en) 1997-02-21 1998-08-27 Motorola Inc. Method and apparatus for allocating spectral resources in a wireless communication system
US6584144B2 (en) 1997-02-24 2003-06-24 At&T Wireless Services, Inc. Vertical adaptive antenna array for a discrete multitone spread spectrum communications system
US6359923B1 (en) 1997-12-18 2002-03-19 At&T Wireless Services, Inc. Highly bandwidth efficient communications
US5838268A (en) 1997-03-14 1998-11-17 Orckit Communications Ltd. Apparatus and methods for modulation and demodulation of data
US5974310A (en) 1997-03-20 1999-10-26 Omnipoint Corporation Communication control for a user of a central communication center
FI104610B (fi) 1997-03-27 2000-02-29 Nokia Networks Oy Ohjauskanavan allokointi pakettiradioverkossa
US6175550B1 (en) 1997-04-01 2001-01-16 Lucent Technologies, Inc. Orthogonal frequency division multiplexing system with dynamically scalable operating parameters and method thereof
KR100242421B1 (ko) 1997-04-14 2000-02-01 윤종용 디지털 이동 통신시스템의 파이롯트 피엔 오프셋 할당 방법
FI106605B (fi) 1997-04-16 2001-02-28 Nokia Networks Oy Autentikointimenetelmä
US6076114A (en) 1997-04-18 2000-06-13 International Business Machines Corporation Methods, systems and computer program products for reliable data transmission over communications networks
FI105136B (fi) 1997-04-21 2000-06-15 Nokia Mobile Phones Ltd Yleinen pakettiradiopalvelu
FI104939B (fi) 1997-04-23 2000-04-28 Nokia Networks Oy Merkinannon toteutus tietoliikenneverkossa
CN1496140B (zh) 1997-04-24 2012-05-16 株式会社Ntt都科摩 移动通信方法和移动通信系统
KR100241894B1 (ko) 1997-05-07 2000-02-01 윤종용 개인통신 시스템의 코드분할 접속방식 기지국 시스템에서 소프트웨어 관리방법
US6075814A (en) 1997-05-09 2000-06-13 Broadcom Homenetworking, Inc. Method and apparatus for reducing signal processing requirements for transmitting packet-based data with a modem
FI105063B (fi) 1997-05-16 2000-05-31 Nokia Networks Oy Menetelmä lähetyssuunnan määrittämiseksi ja radiojärjestelmä
JP2879030B2 (ja) 1997-05-16 1999-04-05 株式会社次世代デジタルテレビジョン放送システム研究所 Ｏｆｄｍ送信装置及び受信装置とｏｆｄｍ送信方法及び受信方法
US6374115B1 (en) 1997-05-28 2002-04-16 Transcrypt International/E.F. Johnson Method and apparatus for trunked radio repeater communications with backwards compatibility
IL133157A (en) 1997-05-30 2005-03-20 Qualcomm Inc Method of and apparatus for paging a wireless terminal in a wireless telecommunications system
SE9702271D0 (sv) 1997-06-13 1997-06-13 Ericsson Telefon Ab L M Återanvändning av fysisk kontrollkanal i ett distribuerat cellulärt radiokommunikationssystem
US6052364A (en) 1997-06-13 2000-04-18 Comsat Corporation CDMA system architecture for satcom terminals
US6151296A (en) 1997-06-19 2000-11-21 Qualcomm Incorporated Bit interleaving for orthogonal frequency division multiplexing in the transmission of digital signals
US5867478A (en) 1997-06-20 1999-02-02 Motorola, Inc. Synchronous coherent orthogonal frequency division multiplexing system, method, software and device
US6240129B1 (en) 1997-07-10 2001-05-29 Alcatel Method and windowing unit to reduce leakage, fourier transformer and DMT modem wherein the unit is used
US6038150A (en) 1997-07-23 2000-03-14 Yee; Hsian-Pei Transistorized rectifier for a multiple output converter
US6038263A (en) 1997-07-31 2000-03-14 Motorola, Inc. Method and apparatus for transmitting signals in a communication system
US6307849B1 (en) 1997-09-08 2001-10-23 Qualcomm Incorporated Method and system for changing forward traffic channel power allocation during soft handoff
KR100365346B1 (ko) 1997-09-09 2003-04-11 삼성전자 주식회사 이동통신시스템의쿼시직교부호생성및쿼시직교부호를이용한대역확산장치및방법
US6038450A (en) 1997-09-12 2000-03-14 Lucent Technologies, Inc. Soft handover system for a multiple sub-carrier communication system and method thereof
US6377809B1 (en) 1997-09-16 2002-04-23 Qualcomm Incorporated Channel structure for communication systems
US6577739B1 (en) 1997-09-19 2003-06-10 University Of Iowa Research Foundation Apparatus and methods for proportional audio compression and frequency shifting
US6058105A (en) 1997-09-26 2000-05-02 Lucent Technologies Inc. Multiple antenna communication system and method thereof
US6075797A (en) 1997-10-17 2000-06-13 3Com Corporation Method and system for detecting mobility of a wireless-capable modem to minimize data transfer rate renegotiations
US7184426B2 (en) 2002-12-12 2007-02-27 Qualcomm, Incorporated Method and apparatus for burst pilot for a time division multiplex system
KR100369602B1 (ko) 1997-11-03 2003-04-11 삼성전자 주식회사 부호분할다중접속방식이동통신시스템의전력제어비트삽입방법
US5995992A (en) 1997-11-17 1999-11-30 Bull Hn Information Systems Inc. Conditional truncation indicator control for a decimal numeric processor employing result truncation
US6108323A (en) 1997-11-26 2000-08-22 Nokia Mobile Phones Limited Method and system for operating a CDMA cellular system having beamforming antennas
US5971484A (en) 1997-12-03 1999-10-26 Steelcase Development Inc. Adjustable armrest for chairs
US6067315A (en) 1997-12-04 2000-05-23 Telefonaktiebolaget Lm Ericsson Method and apparatus for coherently-averaged power estimation
US6563806B1 (en) 1997-12-12 2003-05-13 Hitachi, Ltd. Base station for multi-carrier TDMA mobile communication system and method for assigning communication channels
US6222832B1 (en) 1998-06-01 2001-04-24 Tantivy Communications, Inc. Fast Acquisition of traffic channels for a highly variable data rate reverse link of a CDMA wireless communication system
US6393008B1 (en) 1997-12-23 2002-05-21 Nokia Movile Phones Ltd. Control structures for contention-based packet data services in wideband CDMA
JPH11191756A (ja) 1997-12-25 1999-07-13 Nec Corp Ｐｈｓ（登録商標）によるデータ通信装置及び方法
JPH11196109A (ja) 1997-12-26 1999-07-21 Canon Inc 無線情報通信システム
DE19800653A1 (de) 1998-01-09 1999-07-15 Albert M Huber Vorrichtung zum Abtrennen von Partikeln, oder von Partikeln und Gasen, oder von Fluiden anderer Dichte aus Flüssigkeiten, oder Suspensionen, oder Emulsionen, die ein feststehendes Gehäuse besitzt und mit Hilfe der Zentrifugalkraft separiert und auch diese obengenannten Medien durch diese Vorrichtung und eventuell nachgeschaltete Mittel fördert
DE19800953C1 (de) 1998-01-13 1999-07-29 Siemens Ag Verfahren und Funk-Kommunikationssystem zur Zuteilung von Funkressourcen einer Funkschnittstelle
US6175650B1 (en) 1998-01-26 2001-01-16 Xerox Corporation Adaptive quantization compatible with the JPEG baseline sequential mode
US5955992A (en) 1998-02-12 1999-09-21 Shattil; Steve J. Frequency-shifted feedback cavity used as a phased array antenna controller and carrier interference multiple access spread-spectrum transmitter
KR100290679B1 (ko) 1998-02-14 2001-05-15 윤종용 전용제어채널을 구비하는 이동통신 시스템의 데이타 통신장치
JP3589851B2 (ja) 1998-02-20 2004-11-17 株式会社日立製作所 パケット通信システム及びパケット通信装置
JP2002505563A (ja) 1998-02-27 2002-02-19 シーメンス アクチエンゲゼルシヤフト 符号多重化および時分割多重化に基づき無線遠隔通信を移動および／または定置の送信機器／受信機器間で行う遠隔通信システム
JP3199020B2 (ja) 1998-02-27 2001-08-13 日本電気株式会社 音声音楽信号の符号化装置および復号装置
RU2202855C2 (ru) 1998-02-27 2003-04-20 Сименс Акциенгезелльшафт Система связи с беспроводной связью, основанной на кодовом и временном уплотнении, между мобильными и/или стационарными приемопередающими устройствами
CN100361420C (zh) 1998-03-14 2008-01-09 三星电子株式会社 码分多址通信系统中交换不同长度的帧消息的装置和方法
CA2722546C (en) 1998-04-03 2013-03-19 Tellabs Operations, Inc. Filter for impulse response shortening, with addition spectral constraints, for multicarrier transmission
US6112094A (en) 1998-04-06 2000-08-29 Ericsson Inc. Orthogonal frequency hopping pattern re-use scheme
JPH11298954A (ja) 1998-04-08 1999-10-29 Hitachi Ltd 無線通信方法及び無線通信装置
US6353620B1 (en) 1998-04-09 2002-03-05 Ericsson Inc. System and method for facilitating inter-nodal protocol agreement in a telecommunications
AU3337499A (en) 1998-04-21 1999-11-08 Thomson Multimedia Transmission method in a domestic communication system comprising a wireless channel
US6567425B1 (en) 1998-04-23 2003-05-20 Telefonaktiebolaget Lm Ericsson (Publ) Bearer independent signaling protocol
US6075350A (en) 1998-04-24 2000-06-13 Lockheed Martin Energy Research Corporation Power line conditioner using cascade multilevel inverters for voltage regulation, reactive power correction, and harmonic filtering
US6198775B1 (en) 1998-04-28 2001-03-06 Ericsson Inc. Transmit diversity method, systems, and terminals using scramble coding
WO1999059265A1 (en) 1998-05-12 1999-11-18 Samsung Electronics Co., Ltd. Device and method for reducing the peak-to-average power ratio of a mobile station's transmit power
JP3955680B2 (ja) 1998-05-12 2007-08-08 株式会社エヌ・ティ・ティ・ドコモ 時分割通信方式の移動通信システムにおける無線チャネルアクセス方法、その方法を使用する基地局及び移動局
GB2337414A (en) 1998-05-14 1999-11-17 Fujitsu Ltd Soft handoff in cellular communications networks
US6643275B1 (en) 1998-05-15 2003-11-04 Telefonaktiebolaget Lm Ericsson (Publ) Random access in a mobile telecommunications system
KR100291476B1 (ko) 1998-05-25 2001-07-12 윤종용 파일럿측정요구명령제어방법및시스템
JP2000004215A (ja) 1998-06-16 2000-01-07 Matsushita Electric Ind Co Ltd 送受信システム
JP3092798B2 (ja) 1998-06-30 2000-09-25 日本電気株式会社 適応送受信装置
RU2141706C1 (ru) 1998-07-06 1999-11-20 Военная академия связи Способ и устройство адаптивной пространственной фильтрации сигналов
KR100318959B1 (ko) 1998-07-07 2002-04-22 윤종용 부호분할다중접속통신시스템의서로다른부호간의간섭을제거하는장치및방법
EP1014609B1 (en) 1998-07-13 2004-09-22 Sony Corporation Multicarrier communication method, transmitter and receiver
US6636525B1 (en) 1998-08-19 2003-10-21 International Business Machines Corporation Destination dependent coding for discrete multi-tone modulation
KR100429540B1 (ko) 1998-08-26 2004-08-09 삼성전자주식회사 이동통신시스템의패킷데이터통신장치및방법
US6798736B1 (en) 1998-09-22 2004-09-28 Qualcomm Incorporated Method and apparatus for transmitting and receiving variable rate data
JP2000102065A (ja) 1998-09-24 2000-04-07 Toshiba Corp 無線通信基地局装置
CA2282942A1 (en) 1998-11-09 2000-05-09 Lucent Technologies Inc. Efficient authentication with key update
US6542485B1 (en) 1998-11-25 2003-04-01 Lucent Technologies Inc. Methods and apparatus for wireless communication using time division duplex time-slotted CDMA
US6473399B1 (en) 1998-11-30 2002-10-29 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for determining an optimum timeout under varying data rates in an RLC wireless system which uses a PDU counter
EP1006665B1 (en) 1998-12-04 2003-05-28 Lucent Technologies Inc. Error concealment or correction of speech, image and video signals
US6590881B1 (en) 1998-12-04 2003-07-08 Qualcomm, Incorporated Method and apparatus for providing wireless communication system synchronization
CA2316209C (en) 1998-12-07 2004-04-27 Samsung Electronics Co., Ltd. Device and method for gating transmission in a cdma mobile communication system
JP2000184425A (ja) 1998-12-15 2000-06-30 Toshiba Corp 無線通信基地局装置
US6654429B1 (en) 1998-12-31 2003-11-25 At&T Corp. Pilot-aided channel estimation for OFDM in wireless systems
GB2345612B (en) 1998-12-31 2003-09-03 Nokia Mobile Phones Ltd Measurement report transmission in a telecommunications system
EP1530336B1 (en) 1999-01-08 2009-06-10 Sony Deutschland GmbH Synchronization preamble structure for OFDM system
US6229795B1 (en) 1999-01-13 2001-05-08 Qualcomm Incorporated System for allocating resources in a communication system
US6393012B1 (en) 1999-01-13 2002-05-21 Qualcomm Inc. System for allocating resources in a communication system
EP1021019A1 (en) 1999-01-15 2000-07-19 Sony International (Europe) GmbH Quasi-differential modulation/demodulation method for multi-amplitude digital modulated signals and OFDM system
US6584140B1 (en) 1999-01-22 2003-06-24 Systems Information And Electronic Systems Integration Inc. Spectrum efficient fast frequency-hopped modem with coherent demodulation
US6271946B1 (en) 1999-01-25 2001-08-07 Telcordia Technologies, Inc. Optical layer survivability and security system using optical label switching and high-speed optical header generation and detection
US6388998B1 (en) 1999-02-04 2002-05-14 Lucent Technologies Inc. Reuse of codes and spectrum in a CDMA system with multiple-sector cells
US6256478B1 (en) 1999-02-18 2001-07-03 Eastman Kodak Company Dynamic packet sizing in an RF communications system
US6597746B1 (en) 1999-02-18 2003-07-22 Globespanvirata, Inc. System and method for peak to average power ratio reduction
CA2262315A1 (en) 1999-02-19 2000-08-19 Northern Telecom Limited Joint optimal power balance for coded/tdm constituent data channels
US6487243B1 (en) 1999-03-08 2002-11-26 International Business Machines Corporation Modems, methods, and computer program products for recovering from errors in a tone reversal sequence between two modems
US6317435B1 (en) 1999-03-08 2001-11-13 Qualcomm Incorporated Method and apparatus for maximizing the use of available capacity in a communication system
US6987746B1 (en) 1999-03-15 2006-01-17 Lg Information & Communications, Ltd. Pilot signals for synchronization and/or channel estimation
US6693952B1 (en) 1999-03-16 2004-02-17 Lucent Technologies Inc. Dynamic code allocation for downlink shared channels
KR20000060428A (ko) 1999-03-16 2000-10-16 윤종용 코드분할다중접속 시스템에서 기지국간 직접 연결을 이용한 소프트/소프터 핸드오프의 강화 방법
US7151761B1 (en) 1999-03-19 2006-12-19 Telefonaktiebolaget L M Ericsson (Publ) Code reservation for interference measurement in a CDMA radiocommunication system
US6483820B1 (en) 1999-03-22 2002-11-19 Ericsson Inc. System and method for dynamic radio resource allocation for non-transparent high-speed circuit-switched data services
US6430401B1 (en) 1999-03-29 2002-08-06 Lucent Technologies Inc. Technique for effectively communicating multiple digital representations of a signal
GB2348776B (en) 1999-04-06 2003-07-09 Motorola Ltd A communications network and method of allocating resource thefor
US6249683B1 (en) 1999-04-08 2001-06-19 Qualcomm Incorporated Forward link power control of multiple data streams transmitted to a mobile station using a common power control channel
EP1047209A1 (en) 1999-04-19 2000-10-25 Interuniversitair Micro-Elektronica Centrum Vzw A method and apparatus for multiuser transmission
US6937665B1 (en) 1999-04-19 2005-08-30 Interuniversitaire Micron Elektronica Centrum Method and apparatus for multi-user transmission
US6614857B1 (en) 1999-04-23 2003-09-02 Lucent Technologies Inc. Iterative channel estimation and compensation based thereon
JP4224168B2 (ja) 1999-04-23 2009-02-12 パナソニック株式会社 基地局装置及びピーク電力抑圧方法
CA2337679C (en) 1999-05-12 2005-06-07 Samsung Electronics Co., Ltd. Method and system of providing burst timing for high-speed data transmission in a base station of a mobile communication system
JP3236273B2 (ja) 1999-05-17 2001-12-10 三菱電機株式会社 マルチキャリア伝送システムおよびマルチキャリア変調方法
US6674787B1 (en) 1999-05-19 2004-01-06 Interdigital Technology Corporation Raising random access channel packet payload
US6445917B1 (en) 1999-05-19 2002-09-03 Telefonaktiebolaget Lm Ericsson (Publ) Mobile station measurements with event-based reporting
US6674810B1 (en) 1999-05-27 2004-01-06 3Com Corporation Method and apparatus for reducing peak-to-average power ratio in a discrete multi-tone signal
EP1063780A3 (en) 1999-06-02 2003-11-26 Texas Instruments Incorporated Spread spectrum channel estimation sequences
US6631126B1 (en) 1999-06-11 2003-10-07 Lucent Technologies Inc. Wireless communications using circuit-oriented and packet-oriented frame selection/distribution functions
US6539213B1 (en) 1999-06-14 2003-03-25 Time Domain Corporation System and method for impulse radio power control
FR2794915A1 (fr) 1999-06-14 2000-12-15 Canon Kk Procede et dispositif d'emission, procede et dispositif de reception, et systemes les mettant en oeuvre
US7095708B1 (en) 1999-06-23 2006-08-22 Cingular Wireless Ii, Llc Methods and apparatus for use in communicating voice and high speed data in a wireless communication system
US6363060B1 (en) 1999-06-30 2002-03-26 Qualcomm Incorporated Method and apparatus for fast WCDMA acquisition
JP3518426B2 (ja) 1999-06-30 2004-04-12 Ｋｄｄｉ株式会社 Ｃｄｍａ移動通信システムにおける符号割当方法
US6657949B1 (en) 1999-07-06 2003-12-02 Cisco Technology, Inc. Efficient request access for OFDM systems
CN1280394C (zh) 1999-07-28 2006-10-18 西巴特殊化学品控股有限公司 水杨型锰配合物的水溶性颗粒
US6831943B1 (en) 1999-08-13 2004-12-14 Texas Instruments Incorporated Code division multiple access wireless system with closed loop mode using ninety degree phase rotation and beamformer verification
JP2001069046A (ja) 1999-08-30 2001-03-16 Fujitsu Ltd 送受信システムおよび受信装置
US6542743B1 (en) 1999-08-31 2003-04-01 Qualcomm, Incorporated Method and apparatus for reducing pilot search times utilizing mobile station location information
US6765969B1 (en) 1999-09-01 2004-07-20 Motorola, Inc. Method and device for multi-user channel estimation
US6928047B1 (en) 1999-09-11 2005-08-09 The University Of Delaware Precoded OFDM systems robust to spectral null channels and vector OFDM systems with reduced cyclic prefix length
US6633614B1 (en) 1999-09-15 2003-10-14 Telcordia Technologies, Inc. Multicarrier personal access communication system
KR100429529B1 (ko) 1999-10-02 2004-05-03 삼성전자주식회사 부호분할다중접속 통신시스템의 제어채널신호를단속적으로 송수신하는 장치 및 방법
RU2242091C2 (ru) 1999-10-02 2004-12-10 Самсунг Электроникс Ко., Лтд. Устройство и способ стробирования данных, передаваемых по каналу управления в системе связи мдкр
US6870882B1 (en) 1999-10-08 2005-03-22 At&T Corp. Finite-length equalization over multi-input multi-output channels
US6337659B1 (en) 1999-10-25 2002-01-08 Gamma Nu, Inc. Phased array base station antenna system having distributed low power amplifiers
US6985466B1 (en) 1999-11-09 2006-01-10 Arraycomm, Inc. Downlink signal processing in CDMA systems utilizing arrays of antennae
US6721568B1 (en) 1999-11-10 2004-04-13 Telefonaktiebolaget Lm Ericsson (Publ) Admission control in a mobile radio communications system
KR100602022B1 (ko) 1999-12-15 2006-07-20 유티스타콤코리아 유한회사 이동통신 시스템에서 동기식 기지국과 비동기식 기지국간핸드오프에 필요한 파라메타 전송방법
DE60023334T2 (de) 1999-11-17 2006-07-20 Telefonaktiebolaget Lm Ericsson (Publ) Beschleunigungsabhängige kanalumschaltung in mobilen telekommunikationsnetzen
US6466800B1 (en) 1999-11-19 2002-10-15 Siemens Information And Communication Mobile, Llc Method and system for a wireless communication system incorporating channel selection algorithm for 2.4 GHz direct sequence spread spectrum cordless telephone system
JP3289718B2 (ja) 1999-11-24 2002-06-10 日本電気株式会社 時分割多重アクセス方法及び基準局装置、端末局装置
IL149656A0 (en) 1999-11-29 2002-11-10 Samsung Electronics Co Ltd Apparatus and method for assigning a common packet channel in a cdma communication network
DE19957288C1 (de) 1999-11-29 2001-05-10 Siemens Ag Verfahren zur Signalisierung einer Funkkanalstruktur in einem Funk-Kommunikationssystem
US6763009B1 (en) 1999-12-03 2004-07-13 Lucent Technologies Inc. Down-link transmission scheduling in CDMA data networks
US6351499B1 (en) 1999-12-15 2002-02-26 Iospan Wireless, Inc. Method and wireless systems using multiple antennas and adaptive control for maximizing a communication parameter
US6690951B1 (en) 1999-12-20 2004-02-10 Telefonaktiebolaget Lm Ericsson (Publ) Dynamic size allocation system and method
CA2327734A1 (en) 1999-12-21 2001-06-21 Eta Sa Fabriques D'ebauches Ultra-thin piezoelectric resonator
US6628673B1 (en) 1999-12-29 2003-09-30 Atheros Communications, Inc. Scalable communication system using overlaid signals and multi-carrier frequency communication
US6678318B1 (en) 2000-01-11 2004-01-13 Agere Systems Inc. Method and apparatus for time-domain equalization in discrete multitone transceivers
US6907020B2 (en) 2000-01-20 2005-06-14 Nortel Networks Limited Frame structures supporting voice or streaming communications with high speed data communications in wireless access networks
US7463600B2 (en) 2000-01-20 2008-12-09 Nortel Networks Limited Frame structure for variable rate wireless channels transmitting high speed data
US6804307B1 (en) 2000-01-27 2004-10-12 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for efficient transmit diversity using complex space-time block codes
KR100387034B1 (ko) 2000-02-01 2003-06-11 삼성전자주식회사 무선통신 시스템의 패킷데이타 서비스를 위한스케듈링장치 및 방법
FI117465B (fi) 2000-02-03 2006-10-31 Danisco Sweeteners Oy Menetelmä pureskeltavien ytimien kovapinnoittamiseksi
US6754511B1 (en) 2000-02-04 2004-06-22 Harris Corporation Linear signal separation using polarization diversity
GB0002985D0 (en) 2000-02-09 2000-03-29 Travelfusion Limited Integrated journey planner
US6507601B2 (en) 2000-02-09 2003-01-14 Golden Bridge Technology Collision avoidance
US6546248B1 (en) 2000-02-10 2003-04-08 Qualcomm, Incorporated Method and apparatus for generating pilot strength measurement messages
JP3826653B2 (ja) 2000-02-25 2006-09-27 Ｋｄｄｉ株式会社 無線通信システムのサブキャリア割当方法
JP2003526238A (ja) 2000-02-29 2003-09-02 エイチアールエル ラボラトリーズ，エルエルシー 共同移動アンテナシステム
JP2001245355A (ja) 2000-03-01 2001-09-07 Mitsubishi Electric Corp 移動通信におけるパケット伝送システム
JP2001249802A (ja) 2000-03-07 2001-09-14 Sony Corp 伝送方法、伝送システム、伝送制御装置及び入力装置
KR100493068B1 (ko) 2000-03-08 2005-06-02 삼성전자주식회사 이동통신시스템에서 피드백 정보를 이용하는 반맹목적방식의 송신안테나어레이 장치 및 방법
US7200368B1 (en) 2000-03-15 2007-04-03 Nokia Corporation Transmit diversity method and system
US6473467B1 (en) 2000-03-22 2002-10-29 Qualcomm Incorporated Method and apparatus for measuring reporting channel state information in a high efficiency, high performance communications system
US6940845B2 (en) 2000-03-23 2005-09-06 At & T, Corp. Asymmetric measurement-based dynamic packet assignment system and method for wireless data services
JP2001285927A (ja) 2000-03-29 2001-10-12 Matsushita Electric Ind Co Ltd 通信端末装置及び無線通信方法
US6493331B1 (en) 2000-03-30 2002-12-10 Qualcomm Incorporated Method and apparatus for controlling transmissions of a communications systems
DE60021772T2 (de) 2000-04-07 2006-04-20 Nokia Corp. Verfahren und vorrichtung zur übertragung mit mehreren antennen
US7289570B2 (en) 2000-04-10 2007-10-30 Texas Instruments Incorporated Wireless communications
US6934275B1 (en) 2000-04-17 2005-08-23 Motorola, Inc. Apparatus and method for providing separate forward dedicated and shared control channels in a communications system
US6954481B1 (en) 2000-04-18 2005-10-11 Flarion Technologies, Inc. Pilot use in orthogonal frequency division multiplexing based spread spectrum multiple access systems
US6961364B1 (en) 2000-04-18 2005-11-01 Flarion Technologies, Inc. Base station identification in orthogonal frequency division multiplexing based spread spectrum multiple access systems
US6807146B1 (en) 2000-04-21 2004-10-19 Atheros Communications, Inc. Protocols for scalable communication system using overland signals and multi-carrier frequency communication
AU2001257133A1 (en) 2000-04-22 2001-11-07 Atheros Communications, Inc. Multi-carrier communication systems employing variable symbol rates and number of carriers
US6748220B1 (en) 2000-05-05 2004-06-08 Nortel Networks Limited Resource allocation in wireless networks
US6987729B1 (en) 2000-05-11 2006-01-17 Lucent Technologies Inc. Method and apparatus for admission management in wireless communication systems
FI20001133A (fi) * 2000-05-12 2001-11-13 Nokia Corp Menetelmä päätelaitteiden ja yhteysaseman välisen tiedonsiirron järjestämiseksi tiedonsiirtojärjestelmässä
FI20001160A (fi) 2000-05-15 2001-11-16 Nokia Networks Oy Pilottisignaalin toteuttamismenetelmä
EP1931077B1 (en) 2000-05-17 2015-08-05 Panasonic Intellectual Property Corporation of America Quality of Service control for a hybrid ARQ transmission apparatus with data and control channel for packet data transmission
US6529525B1 (en) 2000-05-19 2003-03-04 Motorola, Inc. Method for supporting acknowledged transport layer protocols in GPRS/edge host application
CA2310188A1 (en) 2000-05-30 2001-11-30 Mark J. Frazer Communication structure with channels configured responsive to reception quality
KR100370746B1 (ko) 2000-05-30 2003-02-05 한국전자통신연구원 다차원 직교 자원 도약 다중화 통신 방식 및 장치
US8223867B2 (en) 2000-06-09 2012-07-17 Texas Instruments Incorporated Wireless communications with efficient channel coding
US7248841B2 (en) 2000-06-13 2007-07-24 Agee Brian G Method and apparatus for optimization of wireless multipoint electromagnetic communication networks
US6701165B1 (en) 2000-06-21 2004-03-02 Agere Systems Inc. Method and apparatus for reducing interference in non-stationary subscriber radio units using flexible beam selection
US6337983B1 (en) 2000-06-21 2002-01-08 Motorola, Inc. Method for autonomous handoff in a wireless communication system
US20020015405A1 (en) 2000-06-26 2002-02-07 Risto Sepponen Error correction of important fields in data packet communications in a digital mobile radio network
JP2002016531A (ja) 2000-06-27 2002-01-18 Nec Corp Ｃｄｍａ通信方式及びその方法
JP2002026790A (ja) 2000-07-03 2002-01-25 Matsushita Electric Ind Co Ltd 無線通信装置及び無線通信方法
DE10032426B4 (de) 2000-07-04 2006-01-12 Siemens Ag Strahlformungsverfahren
AU2001269491A1 (en) 2000-07-11 2002-01-21 Japan Science And Technology Corporation Probe for mass spectrometry of liquid sample
FR2814301B1 (fr) 2000-07-17 2004-11-12 Telediffusion De France Tdf Synchronisation d'un signal amrf
US7418043B2 (en) 2000-07-19 2008-08-26 Lot 41 Acquisition Foundation, Llc Software adaptable high performance multicarrier transmission protocol
JP4808907B2 (ja) 2000-07-26 2011-11-02 三菱電機株式会社 マルチキャリアｃｄｍａ通信装置およびマルチキャリアｃｄｍａ送信装置
GB2366938B (en) 2000-08-03 2004-09-01 Orange Personal Comm Serv Ltd Authentication in a mobile communications network
DE10039429A1 (de) 2000-08-11 2002-03-07 Siemens Ag Verfahren zur Signalübertragung in einem Funk-Kommunikationssystem
US6980540B1 (en) 2000-08-16 2005-12-27 Lucent Technologies Inc. Apparatus and method for acquiring an uplink traffic channel, in wireless communications systems
US6487184B1 (en) 2000-08-25 2002-11-26 Motorola, Inc. Method and apparatus for supporting radio acknowledgement information for a uni-directional user data channel
US6937592B1 (en) 2000-09-01 2005-08-30 Intel Corporation Wireless communications system that supports multiple modes of operation
US6850481B2 (en) 2000-09-01 2005-02-01 Nortel Networks Limited Channels estimation for multiple input—multiple output, orthogonal frequency division multiplexing (OFDM) system
US6985434B2 (en) 2000-09-01 2006-01-10 Nortel Networks Limited Adaptive time diversity and spatial diversity for OFDM
US6898441B1 (en) 2000-09-12 2005-05-24 Lucent Technologies Inc. Communication system having a flexible transmit configuration
US9130810B2 (en) 2000-09-13 2015-09-08 Qualcomm Incorporated OFDM communications methods and apparatus
US7295509B2 (en) 2000-09-13 2007-11-13 Qualcomm, Incorporated Signaling method in an OFDM multiple access system
US6694147B1 (en) 2000-09-15 2004-02-17 Flarion Technologies, Inc. Methods and apparatus for transmitting information between a basestation and multiple mobile stations
US6802035B2 (en) 2000-09-19 2004-10-05 Intel Corporation System and method of dynamically optimizing a transmission mode of wirelessly transmitted information
US6842487B1 (en) 2000-09-22 2005-01-11 Telefonaktiebolaget Lm Ericsson (Publ) Cyclic delay diversity for mitigating intersymbol interference in OFDM systems
US6658258B1 (en) 2000-09-29 2003-12-02 Lucent Technologies Inc. Method and apparatus for estimating the location of a mobile terminal
US6778513B2 (en) 2000-09-29 2004-08-17 Arraycomm, Inc. Method and apparatus for separting multiple users in a shared-channel communication system
US7349371B2 (en) * 2000-09-29 2008-03-25 Arraycomm, Llc Selecting random access channels
US6496790B1 (en) 2000-09-29 2002-12-17 Intel Corporation Management of sensors in computer systems
KR100452536B1 (ko) 2000-10-02 2004-10-12 가부시키가이샤 엔.티.티.도코모 이동통신기지국 장치
US7072315B1 (en) 2000-10-10 2006-07-04 Adaptix, Inc. Medium access control for orthogonal frequency-division multiple-access (OFDMA) cellular networks
FR2815507B1 (fr) 2000-10-16 2003-01-31 Cit Alcatel Procede de gestion des ressources radio dans un reseau de telecommunication interactif
US6704571B1 (en) 2000-10-17 2004-03-09 Cisco Technology, Inc. Reducing data loss during cell handoffs
US6870808B1 (en) * 2000-10-18 2005-03-22 Adaptix, Inc. Channel allocation in broadband orthogonal frequency-division multiple-access/space-division multiple-access networks
RU2233548C2 (ru) 2000-10-20 2004-07-27 Самсунг Электроникс Ко., Лтд. Устройство и способ определения скорости передачи пакетных данных в системе мобильной связи
JP2004511561A (ja) 2000-10-20 2004-04-15 バイオケミ・ゲゼルシヤフト・エム・ベー・ハー 薬剤組成物
US6907270B1 (en) 2000-10-23 2005-06-14 Qualcomm Inc. Method and apparatus for reduced rank channel estimation in a communications system
US6788959B2 (en) 2000-10-30 2004-09-07 Nokia Corporation Method and apparatus for transmitting and receiving dynamic configuration parameters in a third generation cellular telephone network
ATE468723T1 (de) 2000-11-03 2010-06-15 Sony Deutschland Gmbh Sendeleistungsregelung für ofdm- kommunikationsverbindungen
AU9306901A (en) 2000-11-07 2002-05-21 Nokia Corp System for uplink scheduling packet based data traffic in wireless system
US6567387B1 (en) * 2000-11-07 2003-05-20 Intel Corporation System and method for data transmission from multiple wireless base transceiver stations to a subscriber unit
US20020090024A1 (en) 2000-11-15 2002-07-11 Tan Keng Tiong Method and apparatus for non-linear code-division multiple access technology
ES2266010T3 (es) 2000-11-17 2007-03-01 Nokia Corporation Metodo para controlar la ponderacion de señales de datos en transceptores de elementos multiples y dispositivos y red de telecomunicaciones correspondientes.
WO2002045456A1 (en) 2000-11-28 2002-06-06 Telefonaktiebolaget Lm Ericsson (Publ) Release of user equipment using a page procedure in a cellular communication system
GB0029424D0 (en) 2000-12-02 2001-01-17 Koninkl Philips Electronics Nv Radio communication system
CN1312955C (zh) 2000-12-11 2007-04-25 夏普株式会社 无线通信系统
CA2431849C (en) 2000-12-15 2013-07-30 Broadstrom Telecommunications, Inc. Multi-carrier communications with group-based subcarrier allocation
US6947748B2 (en) 2000-12-15 2005-09-20 Adaptix, Inc. OFDMA with adaptive subcarrier-cluster configuration and selective loading
AU2002235217A1 (en) 2000-12-15 2002-06-24 Broadstorm Telecommunications, Inc. Multi-carrier communications with adaptive cluster configuration and switching
US20020077152A1 (en) 2000-12-15 2002-06-20 Johnson Thomas J. Wireless communication methods and systems using multiple overlapping sectored cells
US6862268B2 (en) 2000-12-29 2005-03-01 Nortel Networks, Ltd Method and apparatus for managing a CDMA supplemental channel
US6920119B2 (en) 2001-01-09 2005-07-19 Motorola, Inc. Method for scheduling and allocating data transmissions in a broad-band communications system
US6829293B2 (en) 2001-01-16 2004-12-07 Mindspeed Technologies, Inc. Method and apparatus for line probe signal processing
US6801790B2 (en) 2001-01-17 2004-10-05 Lucent Technologies Inc. Structure for multiple antenna configurations
US6813284B2 (en) 2001-01-17 2004-11-02 Qualcomm Incorporated Method and apparatus for allocating data streams given transmission time interval (TTI) constraints
EP1227601A1 (en) 2001-01-25 2002-07-31 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Downlink scheduling using parallel code trees
US6954448B2 (en) 2001-02-01 2005-10-11 Ipr Licensing, Inc. Alternate channel for carrying selected message types
RU2192094C1 (ru) 2001-02-05 2002-10-27 Гармонов Александр Васильевич Способ когерентной разнесенной передачи сигнала
FR2820574B1 (fr) 2001-02-08 2005-08-05 Wavecom Sa Procede d'extraction d'un motif de symboles de reference servant a estimer la fonction de transfert d'un canal de transmission, signal, dispositif et procedes correspondants
US7120134B2 (en) 2001-02-15 2006-10-10 Qualcomm, Incorporated Reverse link channel architecture for a wireless communication system
US6985453B2 (en) 2001-02-15 2006-01-10 Qualcomm Incorporated Method and apparatus for link quality feedback in a wireless communication system
US6975868B2 (en) 2001-02-21 2005-12-13 Qualcomm Incorporated Method and apparatus for IS-95B reverse link supplemental code channel frame validation and fundamental code channel rate decision improvement
US20020160781A1 (en) 2001-02-23 2002-10-31 Gunnar Bark System, method and apparatus for facilitating resource allocation in a communication system
US6937641B2 (en) 2001-02-28 2005-08-30 Golden Bridge Technology, Inc. Power-controlled random access
US6930470B2 (en) 2001-03-01 2005-08-16 Nortel Networks Limited System and method for code division multiple access communication in a wireless communication environment
US6675012B2 (en) 2001-03-08 2004-01-06 Nokia Mobile Phones, Ltd. Apparatus, and associated method, for reporting a measurement summary in a radio communication system
US6940827B2 (en) 2001-03-09 2005-09-06 Adaptix, Inc. Communication system using OFDM for one direction and DSSS for another direction
US6934340B1 (en) 2001-03-19 2005-08-23 Cisco Technology, Inc. Adaptive control system for interference rejections in a wireless communications system
US6478422B1 (en) 2001-03-19 2002-11-12 Richard A. Hansen Single bifocal custom shooters glasses
US6771706B2 (en) 2001-03-23 2004-08-03 Qualcomm Incorporated Method and apparatus for utilizing channel state information in a wireless communication system
US6748024B2 (en) 2001-03-28 2004-06-08 Nokia Corporation Non-zero complex weighted space-time code for multiple antenna transmission
US7042897B1 (en) 2001-04-05 2006-05-09 Arcwave, Inc Medium access control layer protocol in a distributed environment
US6859503B2 (en) 2001-04-07 2005-02-22 Motorola, Inc. Method and system in a transceiver for controlling a multiple-input, multiple-output communications channel
US7145959B2 (en) 2001-04-25 2006-12-05 Magnolia Broadband Inc. Smart antenna based spectrum multiplexing using existing pilot signals for orthogonal frequency division multiplexing (OFDM) modulations
US6625172B2 (en) 2001-04-26 2003-09-23 Joseph P. Odenwalder Rescheduling scheduled transmissions
US7230941B2 (en) 2001-04-26 2007-06-12 Qualcomm Incorporated Preamble channel decoding
US6611231B2 (en) 2001-04-27 2003-08-26 Vivato, Inc. Wireless packet switched communication systems and networks using adaptively steered antenna arrays
US7188300B2 (en) 2001-05-01 2007-03-06 Telefonaktiebolaget Lm Ericsson (Publ) Flexible layer one for radio interface to PLMN
US7042856B2 (en) 2001-05-03 2006-05-09 Qualcomm, Incorporation Method and apparatus for controlling uplink transmissions of a wireless communication system
EP1255369A1 (en) 2001-05-04 2002-11-06 TELEFONAKTIEBOLAGET LM ERICSSON (publ) Link adaptation for wireless MIMO transmission schemes
US6785341B2 (en) 2001-05-11 2004-08-31 Qualcomm Incorporated Method and apparatus for processing data in a multiple-input multiple-output (MIMO) communication system utilizing channel state information
US6662024B2 (en) 2001-05-16 2003-12-09 Qualcomm Incorporated Method and apparatus for allocating downlink resources in a multiple-input multiple-output (MIMO) communication system
US7047016B2 (en) 2001-05-16 2006-05-16 Qualcomm, Incorporated Method and apparatus for allocating uplink resources in a multiple-input multiple-output (MIMO) communication system
US6751187B2 (en) 2001-05-17 2004-06-15 Qualcomm Incorporated Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel transmission
EP1259008B1 (en) 2001-05-17 2006-10-04 SAMSUNG ELECTRONICS Co. Ltd. Mobile communication apparatus with antenna array and mobile coomunication method therefor
FR2825208B1 (fr) 2001-05-22 2004-07-09 Cit Alcatel Procede d'attribution de ressources en communication dans un systeme de telecommunications du type mf-tdma
KR100870557B1 (ko) 2001-05-25 2008-11-27 리전츠 어브 더 유니버시티 오브 미네소타 무선통신망에서의 공간-시간 부호화 전송 장치 및 방법
US6904097B2 (en) 2001-06-01 2005-06-07 Motorola, Inc. Method and apparatus for adaptive signaling in a QAM communication system
US20020193146A1 (en) 2001-06-06 2002-12-19 Mark Wallace Method and apparatus for antenna diversity in a wireless communication system
CA2390253A1 (en) 2001-06-11 2002-12-11 Unique Broadband Systems, Inc. Ofdm multiple sub-channel communication system
US7212564B2 (en) 2001-06-21 2007-05-01 Qualcomm Incorporated Method of tone allocation for tone hopping sequences
US7027523B2 (en) 2001-06-22 2006-04-11 Qualcomm Incorporated Method and apparatus for transmitting data in a time division duplexed (TDD) communication system
CN1547861A (zh) 2001-06-27 2004-11-17 ���˹���Ѷ��� 无线通信系统中控制信息的传递
US6963543B2 (en) 2001-06-29 2005-11-08 Qualcomm Incorporated Method and system for group call service
GB0116015D0 (en) 2001-06-29 2001-08-22 Simoco Digital Systems Ltd Communications systems
WO2003001981A2 (en) 2001-06-29 2003-01-09 The Government Of The United State Of America As Represent By The Secretary Of The Department Of Health And Human Services Method of promoting engraftment of a donor transplant in a recipient host
US6751444B1 (en) 2001-07-02 2004-06-15 Broadstorm Telecommunications, Inc. Method and apparatus for adaptive carrier allocation and power control in multi-carrier communication systems
DE10132492A1 (de) 2001-07-03 2003-01-23 Hertz Inst Heinrich Adaptives Signalverarbeitungsverfahren zur bidirektionalen Funkübertragung in einem MIMO-Kanal und MIMO-System zur Verfahrensdurchführung
JP3607643B2 (ja) 2001-07-13 2005-01-05 松下電器産業株式会社 マルチキャリア送信装置、マルチキャリア受信装置、およびマルチキャリア無線通信方法
US7197282B2 (en) 2001-07-26 2007-03-27 Ericsson Inc. Mobile station loop-back signal processing
US7236536B2 (en) 2001-07-26 2007-06-26 Lucent Technologies Inc. Method and apparatus for detection and decoding of signals received from a linear propagation channel
JP4318412B2 (ja) 2001-08-08 2009-08-26 富士通株式会社 通信システムにおける送受信装置及び送受信方法
US6776765B2 (en) 2001-08-21 2004-08-17 Synovis Life Technologies, Inc. Steerable stylet
JP4127757B2 (ja) 2001-08-21 2008-07-30 株式会社エヌ・ティ・ティ・ドコモ 無線通信システム、通信端末装置、及びバースト信号送信方法
KR100459557B1 (ko) 2001-08-23 2004-12-03 삼성전자주식회사 고속 순방향 패킷 접속 통신 시스템에서 데이터 상태정보를 나타내기 위한 혼화 자동 재전송 요구 채널 번호할당 방법
JP2003069472A (ja) 2001-08-24 2003-03-07 Matsushita Electric Ind Co Ltd 受信端末装置及び通信システム
KR100474689B1 (ko) 2001-08-30 2005-03-08 삼성전자주식회사 이동통신 시스템에서 소프트 핸드오프 도중의 전력제어 방법
US7664061B2 (en) 2001-09-05 2010-02-16 Nokia Corporation Closed-loop signaling method for controlling multiple transmit beams and correspondingly adapted transceiver device
US20050044206A1 (en) 2001-09-07 2005-02-24 Staffan Johansson Method and arrangements to achieve a dynamic resource distribution policy in packet based communication networks
FR2829642B1 (fr) 2001-09-12 2004-01-16 Eads Defence & Security Ntwk Signal multiporteuses, procede de poursuite d'un canal de transmission a partir d'un tel signal et dispositif pour sa mise en oeuvre
US7106319B2 (en) 2001-09-14 2006-09-12 Seiko Epson Corporation Power supply circuit, voltage conversion circuit, semiconductor device, display device, display panel, and electronic equipment
AU2002327681A1 (en) 2001-09-24 2003-04-07 Atheros Communications, Inc. Method and system for variable rate acknowledgement for wireless communication protocols
JP2003101515A (ja) 2001-09-25 2003-04-04 Sony Corp 無線通信システム、基地局、移動局、送信制御方法及びプログラム格納媒体
KR100440182B1 (ko) 2001-09-29 2004-07-14 삼성전자주식회사 음영지역에서의 퀵페이징 방법
RU2207723C1 (ru) 2001-10-01 2003-06-27 Военный университет связи Способ распределения ресурсов в системе электросвязи с множественным доступом
US7218906B2 (en) 2001-10-04 2007-05-15 Wisconsin Alumni Research Foundation Layered space time processing in a multiple antenna system
US7548506B2 (en) 2001-10-17 2009-06-16 Nortel Networks Limited System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design
CA2408423C (en) 2001-10-17 2013-12-24 Nec Corporation Mobile communication system, communication control method, base station and mobile station to be used in the same
US7248559B2 (en) 2001-10-17 2007-07-24 Nortel Networks Limited Scattered pilot pattern and channel estimation method for MIMO-OFDM systems
US7773699B2 (en) 2001-10-17 2010-08-10 Nortel Networks Limited Method and apparatus for channel quality measurements
JP3675433B2 (ja) 2001-10-17 2005-07-27 日本電気株式会社 移動通信システム及び通信制御方法並びにそれに用いる基地局、移動局
US7349667B2 (en) 2001-10-19 2008-03-25 Texas Instruments Incorporated Simplified noise estimation and/or beamforming for wireless communications
KR100452639B1 (ko) 2001-10-20 2004-10-14 한국전자통신연구원 위성 이동 통신 시스템에서 공통 패킷 채널 접속 방법
KR100547847B1 (ko) 2001-10-26 2006-01-31 삼성전자주식회사 이동통신 시스템에서 역방향 링크의 제어 장치 및 방법
US20030086393A1 (en) 2001-11-02 2003-05-08 Subramanian Vasudevan Method for allocating wireless communication resources
US7164649B2 (en) 2001-11-02 2007-01-16 Qualcomm, Incorporated Adaptive rate control for OFDM communication system
US20030125040A1 (en) 2001-11-06 2003-07-03 Walton Jay R. Multiple-access multiple-input multiple-output (MIMO) communication system
US6909707B2 (en) 2001-11-06 2005-06-21 Motorola, Inc. Method and apparatus for pseudo-random noise offset reuse in a multi-sector CDMA system
US7453801B2 (en) 2001-11-08 2008-11-18 Qualcomm Incorporated Admission control and resource allocation in a communication system supporting application flows having quality of service requirements
US20030108191A1 (en) 2001-11-13 2003-06-12 Kerpez Kenneth James Method and system for spectrally compatible remote terminal ADSL deployment
GB2382265B (en) 2001-11-14 2004-06-09 Toshiba Res Europ Ltd Emergency rescue aid
SE0103853D0 (sv) 2001-11-15 2001-11-15 Ericsson Telefon Ab L M Method and system of retransmission
JP3637965B2 (ja) 2001-11-22 2005-04-13 日本電気株式会社 無線通信システム
JP3756110B2 (ja) 2001-11-29 2006-03-15 シャープ株式会社 無線通信装置
US7154936B2 (en) 2001-12-03 2006-12-26 Qualcomm, Incorporated Iterative detection and decoding for a MIMO-OFDM system
JP3895165B2 (ja) 2001-12-03 2007-03-22 株式会社エヌ・ティ・ティ・ドコモ 通信制御システム、通信制御方法、通信基地局及び移動端末
ATE438978T1 (de) 2001-12-03 2009-08-15 Nokia Corp Auf richtlinien basierende mechanismen zur auswahl von zugriffs-routern und mobilkontext
US6799043B2 (en) 2001-12-04 2004-09-28 Qualcomm, Incorporated Method and apparatus for a reverse link supplemental channel scheduling
JP3955463B2 (ja) 2001-12-05 2007-08-08 ソフトバンクテレコム株式会社 直交周波数分割多重通信システム
US20030112745A1 (en) 2001-12-17 2003-06-19 Xiangyang Zhuang Method and system of operating a coded OFDM communication system
US7054301B1 (en) * 2001-12-31 2006-05-30 Arraycomm, Llc. Coordinated hopping in wireless networks using adaptive antenna arrays
EP1467508B1 (en) 2002-01-10 2011-05-11 Fujitsu Limited Pilot multiplex method in ofdm system and ofdm receiving method
DE10240138A1 (de) 2002-01-18 2003-08-14 Siemens Ag Dynamische Zuordnung von Funkressourcen in einem Funk-Kommunikationssystem
US6954622B2 (en) 2002-01-29 2005-10-11 L-3 Communications Corporation Cooperative transmission power control method and system for CDMA communication systems
US7006557B2 (en) 2002-01-31 2006-02-28 Qualcomm Incorporated Time tracking loop for diversity pilots
US20030142648A1 (en) 2002-01-31 2003-07-31 Samsung Electronics Co., Ltd. System and method for providing a continuous high speed packet data handoff
US7283508B2 (en) 2002-02-07 2007-10-16 Samsung Electronics Co., Ltd. Apparatus and method for transmitting/receiving serving HS-SCCH set information in an HSDPA communication system
US7031742B2 (en) 2002-02-07 2006-04-18 Qualcomm Incorporation Forward and reverse link power control of serving and non-serving base stations in a wireless communication system
RU2237379C2 (ru) 2002-02-08 2004-09-27 Самсунг Электроникс Способ формирования диаграммы направленности адаптивной антенной решетки базовой станции и устройство для его реализации (варианты)
US7009500B2 (en) 2002-02-13 2006-03-07 Ford Global Technologies, Llc Method for operating a pre-crash sensing system in a vehicle having a countermeasure system using stereo cameras
IL151937A0 (en) 2002-02-13 2003-07-31 Witcom Ltd Near-field spatial multiplexing
WO2003069832A1 (de) 2002-02-13 2003-08-21 Siemens Aktiengesellschaft Methode zum beamforming eines mehrnutzempfängers mit kanalschätzung
US7050759B2 (en) 2002-02-19 2006-05-23 Qualcomm Incorporated Channel quality feedback mechanism and method
JP2003249907A (ja) 2002-02-22 2003-09-05 Hitachi Kokusai Electric Inc Ｏｆｄｍ方式の伝送装置
US6862271B2 (en) 2002-02-26 2005-03-01 Qualcomm Incorporated Multiple-input, multiple-output (MIMO) systems with multiple transmission modes
US6636568B2 (en) 2002-03-01 2003-10-21 Qualcomm Data transmission with non-uniform distribution of data rates for a multiple-input multiple-output (MIMO) system
US7099299B2 (en) 2002-03-04 2006-08-29 Agency For Science, Technology And Research CDMA system with frequency domain equalization
US7039356B2 (en) 2002-03-12 2006-05-02 Blue7 Communications Selecting a set of antennas for use in a wireless communication system
KR100464014B1 (ko) 2002-03-21 2004-12-30 엘지전자 주식회사 다중 입출력 이동 통신 시스템에서의 폐루프 신호 처리 방법
US7197084B2 (en) 2002-03-27 2007-03-27 Qualcomm Incorporated Precoding for a multipath channel in a MIMO system
JP2003292667A (ja) 2002-03-29 2003-10-15 Jsr Corp 架橋発泡用熱可塑性エラストマー組成物、成形品の製造方法、および成形品
US6741587B2 (en) 2002-04-02 2004-05-25 Nokia Corporation Inter-frequency measurements with MIMO terminals
US6850741B2 (en) 2002-04-04 2005-02-01 Agency For Science, Technology And Research Method for selecting switched orthogonal beams for downlink diversity transmission
KR100896682B1 (ko) 2002-04-09 2009-05-14 삼성전자주식회사 송/수신 다중 안테나를 포함하는 이동 통신 장치 및 방법
TW200307432A (en) 2002-04-15 2003-12-01 Matsushita Electric Ind Co Ltd The receiving device and the method thereof
US7522673B2 (en) 2002-04-22 2009-04-21 Regents Of The University Of Minnesota Space-time coding using estimated channel information
JP2003318857A (ja) 2002-04-25 2003-11-07 Mitsubishi Electric Corp デジタル放送受信機
ES2351438T3 (es) 2002-04-25 2011-02-04 Powerwave Cognition, Inc. Utilización dinámica de recursos inalámbricos.
US7161971B2 (en) 2002-04-29 2007-01-09 Qualcomm, Incorporated Sending transmission format information on dedicated channels
US6839336B2 (en) 2002-04-29 2005-01-04 Qualcomm, Incorporated Acknowledging broadcast transmissions
US7170876B2 (en) 2002-04-30 2007-01-30 Qualcomm, Inc. Outer-loop scheduling design for communication systems with channel quality feedback mechanisms
US7170937B2 (en) 2002-05-01 2007-01-30 Texas Instruments Incorporated Complexity-scalable intra-frame prediction technique
US6836670B2 (en) 2002-05-09 2004-12-28 Casabyte, Inc. Method, apparatus and article to remotely associate wireless communications devices with subscriber identities and /or proxy wireless communications devices
JP4334274B2 (ja) 2002-05-16 2009-09-30 株式会社エヌ・ティ・ティ・ドコモ マルチキャリア伝送用送信機及びマルチキャリア伝送方法
KR100689399B1 (ko) 2002-05-17 2007-03-08 삼성전자주식회사 이동통신시스템에서 스마트 안테나의 순방향 송신빔 형성장치 및 방법
JP2003347985A (ja) 2002-05-22 2003-12-05 Fujitsu Ltd 無線基地局装置及びその省電力方法
JP4067873B2 (ja) 2002-05-24 2008-03-26 三菱電機株式会社 無線伝送装置
GB0212165D0 (en) 2002-05-27 2002-07-03 Nokia Corp A wireless system
US6917602B2 (en) 2002-05-29 2005-07-12 Nokia Corporation System and method for random access channel capture with automatic retransmission request
US7899067B2 (en) 2002-05-31 2011-03-01 Cisco Technology, Inc. Method and apparatus for generating and using enhanced tree bitmap data structures in determining a longest prefix match
US8699505B2 (en) 2002-05-31 2014-04-15 Qualcomm Incorporated Dynamic channelization code allocation
US7366223B1 (en) * 2002-06-06 2008-04-29 Arraycomm, Llc Modifying hopping sequences in wireless networks
EP1461872A4 (en) 2002-06-07 2007-05-09 Nokia Corp APPARATUS AND ASSOCIATED METHOD FOR FACILITATING THE DISTRIBUTION OF DATA COMMUNICATIONS IN A RADIO COMMUNICATIONS SYSTEM
KR100548311B1 (ko) 2002-06-07 2006-02-02 엘지전자 주식회사 이동 통신 시스템에서의 송신 다이버시티 장치와 방법
US7184713B2 (en) 2002-06-20 2007-02-27 Qualcomm, Incorporated Rate control for multi-channel communication systems
JP3751265B2 (ja) 2002-06-20 2006-03-01 松下電器産業株式会社 無線通信システムおよびスケジューリング方法
US7095709B2 (en) 2002-06-24 2006-08-22 Qualcomm, Incorporated Diversity transmission modes for MIMO OFDM communication systems
US7613248B2 (en) 2002-06-24 2009-11-03 Qualcomm Incorporated Signal processing with channel eigenmode decomposition and channel inversion for MIMO systems
US7483408B2 (en) 2002-06-26 2009-01-27 Nortel Networks Limited Soft handoff method for uplink wireless communications
WO2004004173A1 (en) 2002-06-27 2004-01-08 Koninklijke Philips Electronics N.V. Measurement of channel characteristics in a communication system
US20040077379A1 (en) 2002-06-27 2004-04-22 Martin Smith Wireless transmitter, transceiver and method
US7551546B2 (en) 2002-06-27 2009-06-23 Nortel Networks Limited Dual-mode shared OFDM methods/transmitters, receivers and systems
DE50204684D1 (de) 2002-06-27 2005-12-01 Siemens Ag Anordnung und verfahren zur Datenübertragung in einem mehrfacheingabe mehrfachausgabe Funkkommunikationssystem
US7043274B2 (en) 2002-06-28 2006-05-09 Interdigital Technology Corporation System for efficiently providing coverage of a sectorized cell for common and dedicated channels utilizing beam forming and sweeping
US7372911B1 (en) 2002-06-28 2008-05-13 Arraycomm, Llc Beam forming and transmit diversity in a multiple array radio communications system
KR100640470B1 (ko) 2002-06-29 2006-10-30 삼성전자주식회사 패킷 서비스 통신 시스템에서 전송 안테나 다이버시티방식을 사용하여 데이터를 전송 장치 및 방법
CN1219372C (zh) 2002-07-08 2005-09-14 华为技术有限公司 一种实现多媒体广播和多播业务的传输方法
KR100630112B1 (ko) 2002-07-09 2006-09-27 삼성전자주식회사 이동통신시스템의 적응형 채널 추정장치 및 방법
US7243150B2 (en) 2002-07-10 2007-07-10 Radwin Ltd. Reducing the access delay for transmitting processed data over transmission data
US20040017785A1 (en) 2002-07-16 2004-01-29 Zelst Allert Van System for transporting multiple radio frequency signals of a multiple input, multiple output wireless communication system to/from a central processing base station
CA2532622A1 (en) 2002-07-17 2004-01-22 Soma Networks, Inc. Frequency domain equalization in communications systems with scrambling
KR20050021477A (ko) 2002-07-17 2005-03-07 코닌클리즈케 필립스 일렉트로닉스 엔.브이. 데이터 기호 송신 및 수신 방법, 송신기, 수신기, 컴퓨터프로그램 제품, 및 전송 시스템
AU2003254033A1 (en) 2002-07-18 2004-02-09 Interdigital Technology Corporation Orthogonal variable spreading factor (ovsf) code assignment
US7020446B2 (en) 2002-07-31 2006-03-28 Mitsubishi Electric Research Laboratories, Inc. Multiple antennas at transmitters and receivers to achieving higher diversity and data rates in MIMO systems
JP4022744B2 (ja) 2002-08-01 2007-12-19 日本電気株式会社 移動通信システム及びベストセル変更方法並びにそれに用いる基地局制御装置
US7072296B2 (en) 2002-08-02 2006-07-04 Nms Communications Corporation Methods and apparatus for network signal aggregation and bandwidth reduction
JP4047655B2 (ja) 2002-08-07 2008-02-13 京セラ株式会社 無線通信システム
US6788963B2 (en) 2002-08-08 2004-09-07 Flarion Technologies, Inc. Methods and apparatus for operating mobile nodes in multiple a states
US7418241B2 (en) 2002-08-09 2008-08-26 Qualcomm Incorporated System and techniques for enhancing the reliability of feedback in a wireless communications system
US7558193B2 (en) 2002-08-12 2009-07-07 Starent Networks Corporation Redundancy in voice and data communications systems
US7180627B2 (en) 2002-08-16 2007-02-20 Paxar Corporation Hand-held portable printer with RFID read/write capability
US7050405B2 (en) 2002-08-23 2006-05-23 Qualcomm Incorporated Method and system for a data transmission in a communication system
DE10238796B4 (de) 2002-08-23 2006-09-14 Siemens Ag Verfahren zur Richtungsbestimmung der Position einer Mobilstation relativ zu einer Basisstation, Mobilfunksystem sowie Einrichtung zur Richtungsbestimmung
JP3999605B2 (ja) 2002-08-23 2007-10-31 株式会社エヌ・ティ・ティ・ドコモ 基地局、移動通信システム及び通信方法
US6985498B2 (en) 2002-08-26 2006-01-10 Flarion Technologies, Inc. Beacon signaling in a wireless system
US6940917B2 (en) 2002-08-27 2005-09-06 Qualcomm, Incorporated Beam-steering and beam-forming for wideband MIMO/MISO systems
JP2004096142A (ja) 2002-08-29 2004-03-25 Hitachi Kokusai Electric Inc 地区エリアポーリング方式
US7167916B2 (en) 2002-08-30 2007-01-23 Unisys Corporation Computer OS dispatcher operation with virtual switching queue and IP queues
KR100831987B1 (ko) 2002-08-30 2008-05-23 삼성전자주식회사 다중 사용자를 위한 다중 안테나를 이용한 송수신 장치
US7519032B2 (en) 2002-09-04 2009-04-14 Koninklijke Philips Electronics N.V. Apparatus and method for providing QoS service schedule and bandwidth allocation to a wireless station
IL151644A (en) 2002-09-05 2008-11-26 Fazan Comm Llc Allocation of radio resources in a cdma 2000 cellular system
US7227854B2 (en) 2002-09-06 2007-06-05 Samsung Electronics Co., Ltd. Apparatus and method for transmitting CQI information in a CDMA communication system employing an HSDPA scheme
US7260153B2 (en) 2002-09-09 2007-08-21 Mimopro Ltd. Multi input multi output wireless communication method and apparatus providing extended range and extended rate across imperfectly estimated channels
US6776165B2 (en) 2002-09-12 2004-08-17 The Regents Of The University Of California Magnetic navigation system for diagnosis, biopsy and drug delivery vehicles
WO2004028037A1 (ja) 2002-09-20 2004-04-01 Mitsubishi Denki Kabushiki Kaisha 無線通信システム
US7209712B2 (en) 2002-09-23 2007-04-24 Qualcomm, Incorporated Mean square estimation of channel quality measure
GB0222555D0 (en) 2002-09-28 2002-11-06 Koninkl Philips Electronics Nv Packet data transmission system
KR100933155B1 (ko) 2002-09-30 2009-12-21 삼성전자주식회사 주파수분할다중접속 이동통신시스템에서 가상 셀의 자원할당장치 및 방법
US7317680B2 (en) 2002-10-01 2008-01-08 Nortel Networks Limited Channel mapping for OFDM
US7412212B2 (en) 2002-10-07 2008-08-12 Nokia Corporation Communication system
US6749022B1 (en) 2002-10-17 2004-06-15 Schlumberger Technology Corporation Fracture stimulation process for carbonate reservoirs
JP4602641B2 (ja) 2002-10-18 2010-12-22 株式会社エヌ・ティ・ティ・ドコモ 信号伝送システム、信号伝送方法及び送信機
KR100461547B1 (ko) 2002-10-22 2004-12-16 한국전자통신연구원 디에스/시디엠에이 미모 안테나 시스템에서 보다 나은수신 다이버시티 이득을 얻기 위한 전송 시스템
US7986742B2 (en) 2002-10-25 2011-07-26 Qualcomm Incorporated Pilots for MIMO communication system
US8218609B2 (en) 2002-10-25 2012-07-10 Qualcomm Incorporated Closed-loop rate control for a multi-channel communication system
US7477618B2 (en) 2002-10-25 2009-01-13 Qualcomm Incorporated Method and apparatus for stealing power or code for data channel operations
US8169944B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Random access for wireless multiple-access communication systems
US7002900B2 (en) 2002-10-25 2006-02-21 Qualcomm Incorporated Transmit diversity processing for a multi-antenna communication system
AU2002353638A1 (en) 2002-10-26 2004-05-13 Electronics And Telecommunications Research Institute Frequency hopping ofdma method using symbols of comb pattern
US7023880B2 (en) 2002-10-28 2006-04-04 Qualcomm Incorporated Re-formatting variable-rate vocoder frames for inter-system transmissions
US7330701B2 (en) 2002-10-29 2008-02-12 Nokia Corporation Low complexity beamformers for multiple transmit and receive antennas
US7042857B2 (en) 2002-10-29 2006-05-09 Qualcom, Incorporated Uplink pilot and signaling transmission in wireless communication systems
US6928062B2 (en) 2002-10-29 2005-08-09 Qualcomm, Incorporated Uplink pilot and signaling transmission in wireless communication systems
CN100557982C (zh) 2002-10-30 2009-11-04 Nxp股份有限公司 用于接收编码块信号的接收器及其方法和处理器系统
US6963959B2 (en) 2002-10-31 2005-11-08 International Business Machines Corporation Storage system and method for reorganizing data to improve prefetch effectiveness and reduce seek distance
JP2004153676A (ja) 2002-10-31 2004-05-27 Mitsubishi Electric Corp 通信装置、送信機および受信機
JP2004158901A (ja) 2002-11-01 2004-06-03 Kddi Corp Ｏｆｄｍ及びｍｃ−ｃｄｍａを用いる送信装置、システム及び方法
US7680507B2 (en) 2002-11-04 2010-03-16 Alcatel-Lucent Usa Inc. Shared control and signaling channel for users subscribing to data services in a communication system
JP4095881B2 (ja) 2002-11-13 2008-06-04 株式会社 サンウェイ 道路路面計画の評価方法
DE10254384B4 (de) 2002-11-17 2005-11-17 Siemens Ag Bidirektionales Signalverarbeitungsverfahren für ein MIMO-System mit einer rangadaptiven Anpassung der Datenübertragungsrate
JP4084639B2 (ja) 2002-11-19 2008-04-30 株式会社エヌ・ティ・ティ・ドコモ 移動通信における受付制御方法、移動通信システム、移動局、受付制御装置及び受付制御用プログラム
JP3796212B2 (ja) 2002-11-20 2006-07-12 松下電器産業株式会社 基地局装置及び送信割り当て制御方法
US20040098505A1 (en) * 2002-11-20 2004-05-20 Clemmensen Daniel G. Forwarding system with multiple logical sub-system functionality
KR100479864B1 (ko) 2002-11-26 2005-03-31 학교법인 중앙대학교 이동 통신 시스템에서의 하향링크 신호의 구성 방법과동기화 방법 및 그 장치 그리고 이를 이용한 셀 탐색 방법
TWI342686B (en) 2002-12-04 2011-05-21 Interdigital Tech Corp Reliability detection of channel quality indicator (cqi) and application to outer loop power control
JP4350491B2 (ja) 2002-12-05 2009-10-21 パナソニック株式会社 無線通信システム、無線通信方法、及び無線通信装置
US8179833B2 (en) 2002-12-06 2012-05-15 Qualcomm Incorporated Hybrid TDM/OFDM/CDM reverse link transmission
US7164732B2 (en) 2002-12-09 2007-01-16 Broadcom Corporation Edge incremental redundancy support in a cellular wireless terminal
KR100507519B1 (ko) 2002-12-13 2005-08-17 한국전자통신연구원 Ｏｆｄｍａ 기반 셀룰러 시스템의 하향링크를 위한 신호구성 방법 및 장치
US7508798B2 (en) 2002-12-16 2009-03-24 Nortel Networks Limited Virtual mimo communication system
KR100552669B1 (ko) 2002-12-26 2006-02-20 한국전자통신연구원 층적 공간-시간 구조의 검파기를 갖는 다중 입출력시스템에 적용되는 적응 변복조 장치 및 그 방법
US6904550B2 (en) 2002-12-30 2005-06-07 Motorola, Inc. Velocity enhancement for OFDM systems
KR100606008B1 (ko) 2003-01-04 2006-07-26 삼성전자주식회사 부호 분할 다중 접속 통신 시스템에서 역방향 데이터재전송 요청 송수신 장치 및 방법
JP4098096B2 (ja) 2003-01-06 2008-06-11 三菱電機株式会社 スペクトル拡散受信装置
US8400979B2 (en) 2003-01-07 2013-03-19 Qualcomm Incorporated Forward link handoff for wireless communication systems with OFDM forward link and CDMA reverse link
CN1302671C (zh) 2003-01-07 2007-02-28 华为技术有限公司 一种第三方为接收方接收多媒体短消息付费的方法
US7280467B2 (en) 2003-01-07 2007-10-09 Qualcomm Incorporated Pilot transmission schemes for wireless multi-carrier communication systems
JP4139230B2 (ja) 2003-01-15 2008-08-27 松下電器産業株式会社 送信装置及び送信方法
US7346018B2 (en) 2003-01-16 2008-03-18 Qualcomm, Incorporated Margin control in a data communication system
CN100417269C (zh) 2003-01-20 2008-09-03 中兴通讯股份有限公司 智能天线波束切换方法
KR100580244B1 (ko) 2003-01-23 2006-05-16 삼성전자주식회사 무선랜상의 핸드오프 방법
WO2004068721A2 (en) 2003-01-28 2004-08-12 Celletra Ltd. System and method for load distribution between base station sectors
JP4276009B2 (ja) 2003-02-06 2009-06-10 株式会社エヌ・ティ・ティ・ドコモ 移動局、基地局、無線伝送プログラム、及び無線伝送方法
JP4514463B2 (ja) 2003-02-12 2010-07-28 パナソニック株式会社 送信装置及び無線通信方法
JP3740471B2 (ja) 2003-02-13 2006-02-01 株式会社東芝 Ｏｆｄｍ受信装置、半導体集積回路及びｏｆｄｍ受信方法
AU2003212244A1 (en) 2003-02-14 2004-09-06 Docomo Communications Laboratories Europe Gmbh Two-dimensional channel estimation for multicarrier multiple input outpout communication systems
RU2368106C2 (ru) 2003-02-18 2009-09-20 Квэлкомм Инкорпорейтед Планируемая и автономная передача и подтверждение приема
US7660282B2 (en) 2003-02-18 2010-02-09 Qualcomm Incorporated Congestion control in a wireless data network
US7155236B2 (en) 2003-02-18 2006-12-26 Qualcomm Incorporated Scheduled and autonomous transmission and acknowledgement
US8391249B2 (en) 2003-02-18 2013-03-05 Qualcomm Incorporated Code division multiplexing commands on a code division multiplexed channel
CA2516359C (en) 2003-02-19 2013-03-19 Flarion Technologies, Inc. Methods and apparatus of enhanced coding in multi-user communications systems
US7813322B2 (en) 2003-02-19 2010-10-12 Qualcomm Incorporated Efficient automatic repeat request methods and apparatus
US7149539B2 (en) 2003-02-24 2006-12-12 Autocell Laboratories, Inc Program for self-adjusting power at a wireless station to reduce inter-channel interference
US9544860B2 (en) 2003-02-24 2017-01-10 Qualcomm Incorporated Pilot signals for use in multi-sector cells
KR100539230B1 (ko) 2003-02-26 2005-12-27 삼성전자주식회사 다양한 규격의 신호를 송수신 처리하는 물리층 장치, 이를구비한 무선 랜 시스템 및 그 무선 랜 방법
JP2004260658A (ja) 2003-02-27 2004-09-16 Matsushita Electric Ind Co Ltd 無線ｌａｎ装置
KR20050110716A (ko) 2003-02-27 2005-11-23 인터디지탈 테크날러지 코포레이션 고속 동적 채널 할당 무선 자원 관리 프로시저를 구현하는방법
US7486735B2 (en) 2003-02-28 2009-02-03 Nortel Networks Limited Sub-carrier allocation for OFDM
KR100547758B1 (ko) 2003-02-28 2006-01-31 삼성전자주식회사 초광대역 통신 시스템의 프리앰블 송수신 장치 및 방법
US6927728B2 (en) 2003-03-13 2005-08-09 Motorola, Inc. Method and apparatus for multi-antenna transmission
US7130580B2 (en) 2003-03-20 2006-10-31 Lucent Technologies Inc. Method of compensating for correlation between multiple antennas
US7016319B2 (en) 2003-03-24 2006-03-21 Motorola, Inc. Method and apparatus for reducing co-channel interference in a communication system
SE527445C2 (sv) 2003-03-25 2006-03-07 Telia Ab Lägesanpassat skyddsintervall för OFDM-kommunikation
US20040192386A1 (en) 2003-03-26 2004-09-30 Naveen Aerrabotu Method and apparatus for multiple subscriber identities in a mobile communication device
JP4162522B2 (ja) 2003-03-26 2008-10-08 三洋電機株式会社 無線基地装置、送信指向性制御方法、および送信指向性制御プログラム
JP4218387B2 (ja) 2003-03-26 2009-02-04 日本電気株式会社 無線通信システム、基地局及びそれらに用いる無線リンク品質情報補正方法並びにそのプログラム
JP4181906B2 (ja) 2003-03-26 2008-11-19 富士通株式会社 送信機及び受信機
JP4099175B2 (ja) 2003-03-27 2008-06-11 株式会社エヌ・ティ・ティ・ドコモ 複数のチャネルを推定する装置及び方法
US7233634B1 (en) 2003-03-27 2007-06-19 Nortel Networks Limited Maximum likelihood decoding
GB2400280B (en) 2003-04-02 2005-06-01 Matsushita Electric Ind Co Ltd Dynamic resource allocation in packet data transfer
US7085574B2 (en) 2003-04-15 2006-08-01 Qualcomm, Incorporated Grant channel assignment
EP1617568B1 (en) 2003-04-21 2013-09-04 Mitsubishi Denki Kabushiki Kaisha Radio communication apparatus, transmitter apparatus, receiver apparatus and radio communication system
CN101771445B (zh) 2003-04-23 2013-05-01 高通股份有限公司 增强无线通信系统性能的方法和设备
US7640373B2 (en) 2003-04-25 2009-12-29 Motorola, Inc. Method and apparatus for channel quality feedback within a communication system
US6824416B2 (en) 2003-04-30 2004-11-30 Agilent Technologies, Inc. Mounting arrangement for plug-in modules
US7013143B2 (en) 2003-04-30 2006-03-14 Motorola, Inc. HARQ ACK/NAK coding for a communication device during soft handoff
US20040219919A1 (en) 2003-04-30 2004-11-04 Nicholas Whinnett Management of uplink scheduling modes in a wireless communication system
US6993342B2 (en) 2003-05-07 2006-01-31 Motorola, Inc. Buffer occupancy used in uplink scheduling for a communication device
US6882855B2 (en) 2003-05-09 2005-04-19 Motorola, Inc. Method and apparatus for CDMA soft handoff for dispatch group members
US7177297B2 (en) 2003-05-12 2007-02-13 Qualcomm Incorporated Fast frequency hopping with a code division multiplexed pilot in an OFDMA system
US7254158B2 (en) 2003-05-12 2007-08-07 Qualcomm Incorporated Soft handoff with interference cancellation in a wireless frequency hopping communication system
US6950319B2 (en) 2003-05-13 2005-09-27 Delta Electronics, Inc. AC/DC flyback converter
US7545867B1 (en) 2003-05-14 2009-06-09 Marvell International, Ltd. Adaptive channel bandwidth selection for MIMO wireless systems
KR100526542B1 (ko) 2003-05-15 2005-11-08 삼성전자주식회사 이동 통신 시스템에서 다중안테나를 사용하는송신다이버시티 방식을 사용하여 데이터를 송수신하는장치 및 방법
US7181196B2 (en) 2003-05-15 2007-02-20 Lucent Technologies Inc. Performing authentication in a communications system
EP1623512A1 (en) 2003-05-15 2006-02-08 Lg Electronics Inc. Method and apparatus for allocating channelization codes for wireless communications
US20040228313A1 (en) 2003-05-16 2004-11-18 Fang-Chen Cheng Method of mapping data for uplink transmission in communication systems
WO2004105272A1 (ja) 2003-05-20 2004-12-02 Fujitsu Limited 移動通信システムにおけるアプリケーションハンドオーバ方法並びに同移動通信システムに使用される移動管理ノード及び移動ノード
US7454510B2 (en) 2003-05-29 2008-11-18 Microsoft Corporation Controlled relay of media streams across network perimeters
US7366137B2 (en) 2003-05-31 2008-04-29 Qualcomm Incorporated Signal-to-noise estimation in wireless communication devices with receive diversity
US8018902B2 (en) 2003-06-06 2011-09-13 Telefonaktiebolaget L M Ericsson (Publ) Methods and apparatus for channel quality indicator determination
US7079870B2 (en) 2003-06-09 2006-07-18 Ipr Licensing, Inc. Compensation techniques for group delay effects in transmit beamforming radio communication
WO2004114549A1 (en) 2003-06-13 2004-12-29 Nokia Corporation Enhanced data only code division multiple access (cdma) system
KR100547734B1 (ko) 2003-06-13 2006-01-31 삼성전자주식회사 직교 주파수 분할 다중 방식을 사용하는 이동 통신시스템에서 매체 접속 제어 계층의 동작 상태 제어 방법
US7236747B1 (en) 2003-06-18 2007-06-26 Samsung Electronics Co., Ltd. (SAIT) Increasing OFDM transmit power via reduction in pilot tone
US20040257979A1 (en) 2003-06-18 2004-12-23 Samsung Electronics Co., Ltd. Apparatus and method for tranmitting and receiving a pilot pattern for identification of a base station in an OFDM communication system
KR20050000709A (ko) 2003-06-24 2005-01-06 삼성전자주식회사 다중 접속 방식을 사용하는 통신 시스템의 데이터 송수신장치 및 방법
US7433661B2 (en) 2003-06-25 2008-10-07 Lucent Technologies Inc. Method for improved performance and reduced bandwidth channel state information feedback in communication systems
NZ526669A (en) 2003-06-25 2006-03-31 Ind Res Ltd Narrowband interference suppression for OFDM systems
US7394865B2 (en) 2003-06-25 2008-07-01 Nokia Corporation Signal constellations for multi-carrier systems
EP1492241B1 (en) 2003-06-26 2007-02-14 Mitsubishi Electric Information Technology Centre Europe B.V. Improved sphere decoding of symbols transmitted in a telecommunication system
JP3746280B2 (ja) 2003-06-27 2006-02-15 株式会社東芝 通信方法、通信システム及び通信装置
CN100473213C (zh) 2003-06-30 2009-03-25 日本电气株式会社 无线通信系统和发射模式选择方法
US7522919B2 (en) 2003-07-14 2009-04-21 Telefonaktiebolaget Lm Ericsson (Publ) Enhancements to periodic silences in wireless communication systems
US7859689B2 (en) * 2003-07-31 2010-12-28 Electronics For Imaging, Inc. Methods and apparatus for analyzing electronic documents and digital printing systems
US7313126B2 (en) 2003-07-31 2007-12-25 Samsung Electronics Co., Ltd. Control system and multiple access method in wireless communication system
US7315527B2 (en) 2003-08-05 2008-01-01 Qualcomm Incorporated Extended acknowledgement and rate control channel
US7126928B2 (en) 2003-08-05 2006-10-24 Qualcomm Incorporated Grant, acknowledgement, and rate control active sets
US8140980B2 (en) 2003-08-05 2012-03-20 Verizon Business Global Llc Method and system for providing conferencing services
CN1820438B (zh) 2003-08-05 2010-09-22 意大利电信股份公司 在通信网中向附加业务路径提供连接保护的方法、相关网络
US7969857B2 (en) 2003-08-07 2011-06-28 Nortel Networks Limited OFDM system and method employing OFDM symbols with known or information-containing prefixes
US7460494B2 (en) 2003-08-08 2008-12-02 Intel Corporation Adaptive signaling in multiple antenna systems
JP4427027B2 (ja) 2003-08-12 2010-03-03 パナソニック株式会社 送信装置および送信方法
EP1654820A4 (en) 2003-08-13 2011-01-19 Qualcomm Inc METHOD AND DEVICES FOR POWER CONTROL IN WIRELESS COMMUNICATION SYSTEMS
EP1507421B1 (en) 2003-08-14 2006-06-28 Matsushita Electric Industrial Co., Ltd. Base station synchronization during soft handover
CN1284795C (zh) 2003-08-15 2006-11-15 上海师范大学 磁性纳米粒子核酸分离器、及其制法和应用
RU2235429C1 (ru) 2003-08-15 2004-08-27 Федеральное государственное унитарное предприятие "Воронежский научно-исследовательский институт связи" Способ частотно-временной синхронизации системы связи и устройство для его осуществления
US7257167B2 (en) 2003-08-19 2007-08-14 The University Of Hong Kong System and method for multi-access MIMO channels with feedback capacity constraint
MXPA06001808A (es) 2003-08-20 2006-05-04 Matsushita Electric Ind Co Ltd Aparato de comunicacion por radio y metodo de asignacion de subportadores.
US6925145B2 (en) 2003-08-22 2005-08-02 General Electric Company High speed digital radiographic inspection of piping
US20050063298A1 (en) 2003-09-02 2005-03-24 Qualcomm Incorporated Synchronization in a broadcast OFDM system using time division multiplexed pilots
JP4194091B2 (ja) 2003-09-02 2008-12-10 ソニー・エリクソン・モバイルコミュニケーションズ株式会社 無線通信システムおよび無線通信装置
US7221680B2 (en) 2003-09-02 2007-05-22 Qualcomm Incorporated Multiplexing and transmission of multiple data streams in a wireless multi-carrier communication system
US20050047517A1 (en) 2003-09-03 2005-03-03 Georgios Giannakis B. Adaptive modulation for multi-antenna transmissions with partial channel knowledge
US7400856B2 (en) 2003-09-03 2008-07-15 Motorola, Inc. Method and apparatus for relay facilitated communications
US7724827B2 (en) 2003-09-07 2010-05-25 Microsoft Corporation Multi-layer run level encoding and decoding
US8908496B2 (en) 2003-09-09 2014-12-09 Qualcomm Incorporated Incremental redundancy transmission in a MIMO communication system
US7356073B2 (en) 2003-09-10 2008-04-08 Nokia Corporation Method and apparatus providing an advanced MIMO receiver that includes a signal-plus-residual-interference (SPRI) detector
US6917821B2 (en) 2003-09-23 2005-07-12 Qualcomm, Incorporated Successive interference cancellation receiver processing with selection diversity
US20050068921A1 (en) 2003-09-29 2005-03-31 Jung-Tao Liu Multiplexing of physical channels on the uplink
EP1668835A1 (en) 2003-09-30 2006-06-14 Telefonaktiebolaget LM Ericsson (publ) Method and apparatus for congestion control in high speed wireless packet data networks
KR100950668B1 (ko) 2003-09-30 2010-04-02 삼성전자주식회사 직교 주파수 분할 다중 접속 방식을 사용하는 통신 시스템에서 업링크 파일럿 신호 송수신 장치 및 방법
JP2005110130A (ja) 2003-10-01 2005-04-21 Samsung Electronics Co Ltd 共通チャネル伝送システム、共通チャネル伝送方法及び通信プログラム
US7230942B2 (en) 2003-10-03 2007-06-12 Qualcomm, Incorporated Method of downlink resource allocation in a sectorized environment
EP1521414B1 (en) 2003-10-03 2008-10-29 Kabushiki Kaisha Toshiba Method and apparatus for sphere decoding
US7039370B2 (en) 2003-10-16 2006-05-02 Flarion Technologies, Inc. Methods and apparatus of providing transmit and/or receive diversity with multiple antennas in wireless communication systems
US7242722B2 (en) 2003-10-17 2007-07-10 Motorola, Inc. Method and apparatus for transmission and reception within an OFDM communication system
US7120395B2 (en) 2003-10-20 2006-10-10 Nortel Networks Limited MIMO communications
ATE368977T1 (de) 2003-10-21 2007-08-15 Alcatel Lucent Verfahren zur zuordnung der unterträger und zur auswahl des modulationsschemas in einem drahtlosen mehrträgerübertragungssystem
US7508748B2 (en) 2003-10-24 2009-03-24 Qualcomm Incorporated Rate selection for a multi-carrier MIMO system
KR20050040988A (ko) 2003-10-29 2005-05-04 삼성전자주식회사 주파수도약 직교 주파수 분할 다중화 기반 셀룰러시스템을 위한 통신방법
KR100957415B1 (ko) 2003-10-31 2010-05-11 삼성전자주식회사 직교 주파수 분할 다중 방식을 사용하는 통신 시스템에서 기지국 구분을 위한 파일럿 신호 송수신 장치 및 방법
KR101023330B1 (ko) 2003-11-05 2011-03-18 한국과학기술원 무선 통신 시스템에서 서비스 품질을 보장하기 위한 복합자동 재전송 요구 방법
US7664533B2 (en) 2003-11-10 2010-02-16 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for a multi-beam antenna system
KR100981554B1 (ko) 2003-11-13 2010-09-10 한국과학기술원 다중 송수신 안테나들을 구비하는 이동통신시스템에서,송신 안테나들을 그룹핑하여 신호를 전송하는 방법
EP1533950A1 (en) 2003-11-21 2005-05-25 Sony International (Europe) GmbH Method for connecting a mobile terminal to a wireless communication system, wireless communication system and mobile terminal for a wireless communication system
US7356000B2 (en) 2003-11-21 2008-04-08 Motorola, Inc. Method and apparatus for reducing call setup delay
JP3908723B2 (ja) 2003-11-28 2007-04-25 Ｔｄｋ株式会社 誘電体磁器組成物の製造方法
US9473269B2 (en) 2003-12-01 2016-10-18 Qualcomm Incorporated Method and apparatus for providing an efficient control channel structure in a wireless communication system
KR20050053907A (ko) 2003-12-03 2005-06-10 삼성전자주식회사 직교 주파수 분할 다중 접속 방식을 사용하는 이동 통신시스템에서 서브 캐리어 할당 방법
WO2005055543A1 (en) 2003-12-03 2005-06-16 Australian Telecommunications Cooperative Research Centre Channel estimation for ofdm systems
US7145940B2 (en) 2003-12-05 2006-12-05 Qualcomm Incorporated Pilot transmission schemes for a multi-antenna system
WO2005055484A1 (ja) 2003-12-05 2005-06-16 Nippon Telegraph And Telephone Corporation 無線通信装置、無線通信方法、及び無線通信システム
EP1542488A1 (en) 2003-12-12 2005-06-15 Telefonaktiebolaget LM Ericsson (publ) Method and apparatus for allocating a pilot signal adapted to the channel characteristics
KR100856227B1 (ko) 2003-12-15 2008-09-03 삼성전자주식회사 이동통신시스템에서의 송/수신장치 및 방법
US7302009B2 (en) 2003-12-17 2007-11-27 Qualcomm Incorporated Broadcast transmission with spatial spreading in a multi-antenna communication system
KR100560386B1 (ko) 2003-12-17 2006-03-13 한국전자통신연구원 무선 통신 시스템의 상향 링크에서 코히어런트 검출을위한 직교주파수 분할 다중 접속 방식의 송수신 장치 및그 방법
EP1545082A3 (en) 2003-12-17 2005-08-03 Kabushiki Kaisha Toshiba Signal decoding methods and apparatus
KR20050063826A (ko) 2003-12-19 2005-06-28 엘지전자 주식회사 무선통신 시스템의 무선자원 할당방법
KR100507541B1 (ko) 2003-12-19 2005-08-09 삼성전자주식회사 직교주파수분할다중접속 시스템에서의 데이터 및 파일롯할당 방법 과 그를 이용한 송신 방법 및 그 장치, 수신방법과 그 장치
AU2003290487A1 (en) 2003-12-22 2005-07-14 Telefonaktiebolaget Lm Ericsson (Publ) A method for determining transmit weights
JP4301931B2 (ja) 2003-12-22 2009-07-22 株式会社三共 遊技機
US7181170B2 (en) 2003-12-22 2007-02-20 Motorola Inc. Apparatus and method for adaptive broadcast transmission
KR100943572B1 (ko) 2003-12-23 2010-02-24 삼성전자주식회사 직교 주파수 분할 다중 접속 시스템에서 주파수재사용율을 고려한 적응적 부채널 할당 장치 및 방법
US7352819B2 (en) 2003-12-24 2008-04-01 Intel Corporation Multiantenna communications apparatus, methods, and system
JP2005197772A (ja) 2003-12-26 2005-07-21 Toshiba Corp アダプティブアレイアンテナ装置
EP1698086A2 (en) 2003-12-27 2006-09-06 Electronics and Telecommunications Research Institute A mimo-ofdm system using eigenbeamforming method
US7489621B2 (en) 2003-12-30 2009-02-10 Alexander A Maltsev Adaptive puncturing technique for multicarrier systems
WO2005069538A1 (en) 2004-01-07 2005-07-28 Deltel, Inc./Pbnext Method and apparatus for telecommunication system
CN1642051A (zh) 2004-01-08 2005-07-20 电子科技大学 一种获取最优导引符号功率的方法
WO2005065062A2 (en) 2004-01-09 2005-07-21 Lg Electronics Inc. Packet transmission method
US7289585B2 (en) 2004-01-12 2007-10-30 Intel Corporation Multicarrier receivers and methods for separating transmitted signals in a multiple antenna system
JP4167183B2 (ja) 2004-01-14 2008-10-15 株式会社国際電気通信基礎技術研究所 アレーアンテナの制御装置
CN102291362B (zh) 2004-01-20 2014-04-30 高通股份有限公司 同步广播/多播通信
US20050159162A1 (en) 2004-01-20 2005-07-21 Samsung Electronics Co., Ltd. Method for transmitting data in mobile communication network
JP2007518346A (ja) 2004-01-20 2007-07-05 エルジー エレクトロニクス インコーポレイティド Ｍｉｍｏシステムにおける信号送受信方法
US8611283B2 (en) 2004-01-28 2013-12-17 Qualcomm Incorporated Method and apparatus of using a single channel to provide acknowledgement and assignment messages
WO2005081439A1 (en) 2004-02-13 2005-09-01 Neocific, Inc. Methods and apparatus for multi-carrier communication systems with adaptive transmission and feedback
CA2555360A1 (en) 2004-02-05 2005-09-22 Motorika Inc. Rehabilitation with music
US8144735B2 (en) 2004-02-10 2012-03-27 Qualcomm Incorporated Transmission of signaling information for broadcast and multicast services
GB2412541B (en) 2004-02-11 2006-08-16 Samsung Electronics Co Ltd Method of operating TDD/virtual FDD hierarchical cellular telecommunication system
KR100827105B1 (ko) 2004-02-13 2008-05-02 삼성전자주식회사 광대역 무선 통신 시스템에서 고속 레인징을 통한 빠른핸드오버 수행 방법 및 장치
EP1763932A4 (en) 2004-02-17 2010-01-06 Huawei Tech Co Ltd MULTIPLEX PROCESS IN A COMMUNICATION SYSTEM
US7564906B2 (en) 2004-02-17 2009-07-21 Nokia Siemens Networks Oy OFDM transceiver structure with time-domain scrambling
US8169889B2 (en) 2004-02-18 2012-05-01 Qualcomm Incorporated Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system
WO2005086500A1 (en) 2004-02-27 2005-09-15 Nokia Corporation Constrained optimization based mimo lmmse-sic receiver for cdma downlink
US20050195886A1 (en) 2004-03-02 2005-09-08 Nokia Corporation CPICH processing for SINR estimation in W-CDMA system
US7290195B2 (en) 2004-03-05 2007-10-30 Microsoft Corporation Adaptive acknowledgment delay
KR101084113B1 (ko) 2004-03-05 2011-11-17 엘지전자 주식회사 이동통신의 핸드오버에 적용되는 서비스 정보 전달 방법
EP1726111B1 (en) 2004-03-15 2019-05-29 Apple Inc. Pilot design for ofdm systems with four transmit antennas
US20050201296A1 (en) 2004-03-15 2005-09-15 Telefonaktiebolaget Lm Ericsson (Pu Reduced channel quality feedback
US7706350B2 (en) 2004-03-19 2010-04-27 Qualcomm Incorporated Methods and apparatus for flexible spectrum allocation in communication systems
US20050207367A1 (en) 2004-03-22 2005-09-22 Onggosanusi Eko N Method for channel quality indicator computation and feedback in a multi-carrier communications system
JP2005284751A (ja) 2004-03-30 2005-10-13 Fujitsu Ltd 論理検証装置、論理検証方法および論理検証プログラム
JP4288368B2 (ja) 2004-04-09 2009-07-01 Ｏｋｉセミコンダクタ株式会社 受信制御方法および無線ｌａｎ装置
US7684507B2 (en) 2004-04-13 2010-03-23 Intel Corporation Method and apparatus to select coding mode
US7047006B2 (en) 2004-04-28 2006-05-16 Motorola, Inc. Method and apparatus for transmission and reception of narrowband signals within a wideband communication system
GB0409704D0 (en) 2004-04-30 2004-06-02 Nokia Corp A method for verifying a first identity and a second identity of an entity
KR100594084B1 (ko) 2004-04-30 2006-06-30 삼성전자주식회사 직교 주파수 분할 다중 수신기의 채널 추정 방법 및 채널추정기
CA2506267A1 (en) 2004-05-04 2005-11-04 Her Majesty The Queen In Right Of Canada As Represented By The Minister Of Industry Through The Communications Research Centre Multi-subband frequency hopping communication system and method
US7411898B2 (en) 2004-05-10 2008-08-12 Infineon Technologies Ag Preamble generator for a multiband OFDM transceiver
JP4447372B2 (ja) 2004-05-13 2010-04-07 株式会社エヌ・ティ・ティ・ドコモ 無線通信システム、無線通信装置、無線受信装置、無線通信方法及びチャネル推定方法
KR20050109789A (ko) 2004-05-17 2005-11-22 삼성전자주식회사 공간분할다중화/다중입력다중출력 시스템에서의 빔포밍 방법
US20050259005A1 (en) 2004-05-20 2005-11-24 Interdigital Technology Corporation Beam forming matrix-fed circular array system
US7157351B2 (en) 2004-05-20 2007-01-02 Taiwan Semiconductor Manufacturing Co., Ltd. Ozone vapor clean method
US8000377B2 (en) 2004-05-24 2011-08-16 General Dynamics C4 Systems, Inc. System and method for variable rate multiple access short message communications
JP4398791B2 (ja) 2004-05-25 2010-01-13 株式会社エヌ・ティ・ティ・ドコモ 送信機および送信制御方法
US7551564B2 (en) 2004-05-28 2009-06-23 Intel Corporation Flow control method and apparatus for single packet arrival on a bidirectional ring interconnect
KR100754794B1 (ko) 2004-05-29 2007-09-03 삼성전자주식회사 이동통신시스템에서 셀 식별 코드 송수신 장치 및 방법
US7437164B2 (en) 2004-06-08 2008-10-14 Qualcomm Incorporated Soft handoff for reverse link in a wireless communication system with frequency reuse
JP2005352205A (ja) 2004-06-10 2005-12-22 Fujinon Corp 照明装置
US7769107B2 (en) 2004-06-10 2010-08-03 Intel Corporation Semi-blind analog beamforming for multiple-antenna systems
US8619907B2 (en) 2004-06-10 2013-12-31 Agere Systems, LLC Method and apparatus for preamble training in a multiple antenna communication system
US7773950B2 (en) 2004-06-16 2010-08-10 Telefonaktiebolaget Lm Ericsson (Publ) Benign interference suppression for received signal quality estimation
US8068530B2 (en) 2004-06-18 2011-11-29 Qualcomm Incorporated Signal acquisition in a wireless communication system
US7724777B2 (en) 2004-06-18 2010-05-25 Qualcomm Incorporated Quasi-orthogonal multiplexing for a multi-carrier communication system
US7599327B2 (en) 2004-06-24 2009-10-06 Motorola, Inc. Method and apparatus for accessing a wireless communication system
KR101053610B1 (ko) 2004-06-25 2011-08-03 엘지전자 주식회사 Ｏｆｄｍ／ｏｆｄｍａ 시스템의 무선자원 할당 방법
US7299048B2 (en) 2004-06-25 2007-11-20 Samsung Electronics Co., Ltd. System and method for performing soft handover in broadband wireless access communication system
CN102655446B (zh) 2004-06-30 2016-12-14 亚马逊科技公司 用于控制信号传输的装置和方法、以及通信方法
US8000268B2 (en) 2004-06-30 2011-08-16 Motorola Mobility, Inc. Frequency-hopped IFDMA communication system
CA2568178C (en) 2004-07-02 2009-11-24 Vibration Research Corporation System and method for simultaneously controlling spectrum and kurtosis of a random vibration
WO2006002550A1 (en) 2004-07-07 2006-01-12 Nortel Networks Limited System and method for mapping symbols for mimo transmission
JP4181093B2 (ja) 2004-07-16 2008-11-12 株式会社東芝 無線通信システム
US9148256B2 (en) 2004-07-21 2015-09-29 Qualcomm Incorporated Performance based rank prediction for MIMO design
US10355825B2 (en) 2004-07-21 2019-07-16 Qualcomm Incorporated Shared signaling channel for a communication system
US7567621B2 (en) 2004-07-21 2009-07-28 Qualcomm Incorporated Capacity based rank prediction for MIMO design
US7676007B1 (en) 2004-07-21 2010-03-09 Jihoon Choi System and method for interpolation based transmit beamforming for MIMO-OFDM with partial feedback
US9137822B2 (en) 2004-07-21 2015-09-15 Qualcomm Incorporated Efficient signaling over access channel
US8477710B2 (en) 2004-07-21 2013-07-02 Qualcomm Incorporated Method of providing a gap indication during a sticky assignment
US7257406B2 (en) 2004-07-23 2007-08-14 Qualcomm, Incorporated Restrictive reuse set management
CN101019340B (zh) 2004-08-03 2010-10-27 新加坡科技研究局 数字数据流的发送方法、发送器、接收方法及接收器
JP2006050326A (ja) 2004-08-05 2006-02-16 Toshiba Corp 情報処理装置および同装置のシーンチェンジ検出方法
US7428426B2 (en) 2004-08-06 2008-09-23 Qualcomm, Inc. Method and apparatus for controlling transmit power in a wireless communications device
US7499393B2 (en) 2004-08-11 2009-03-03 Interdigital Technology Corporation Per stream rate control (PSRC) for improving system efficiency in OFDM-MIMO communication systems
CN101015141B (zh) 2004-08-12 2010-12-08 Lg电子株式会社 无线通信系统专用服务的接收
US20060218459A1 (en) 2004-08-13 2006-09-28 David Hedberg Coding systems and methods
CN1296682C (zh) 2004-08-17 2007-01-24 广东省基础工程公司 一种隧道过江施工中用于监测河床沉降的装置及其方法
US20060039332A1 (en) 2004-08-17 2006-02-23 Kotzin Michael D Mechanism for hand off using subscriber detection of synchronized access point beacon transmissions
US7515644B2 (en) 2004-08-17 2009-04-07 Samsung Electronics Co., Ltd Apparatus and method for space-time-frequency block coding for increasing performance
US7899497B2 (en) 2004-08-18 2011-03-01 Ruckus Wireless, Inc. System and method for transmission parameter control for an antenna apparatus with selectable elements
US7336727B2 (en) 2004-08-19 2008-02-26 Nokia Corporation Generalized m-rank beamformers for MIMO systems using successive quantization
US20060039344A1 (en) 2004-08-20 2006-02-23 Lucent Technologies, Inc. Multiplexing scheme for unicast and broadcast/multicast traffic
US7852746B2 (en) 2004-08-25 2010-12-14 Qualcomm Incorporated Transmission of signaling in an OFDM-based system
KR100856249B1 (ko) 2004-08-26 2008-09-03 삼성전자주식회사 무선 통신 시스템에서 초기 동작 모드 검출 방법
US7894548B2 (en) 2004-09-03 2011-02-22 Qualcomm Incorporated Spatial spreading with space-time and space-frequency transmit diversity schemes for a wireless communication system
US7978778B2 (en) 2004-09-03 2011-07-12 Qualcomm, Incorporated Receiver structures for spatial spreading with space-time or space-frequency transmit diversity
US7362822B2 (en) 2004-09-08 2008-04-22 Intel Corporation Recursive reduction of channel state feedback
US7613423B2 (en) 2004-09-10 2009-11-03 Samsung Electronics Co., Ltd. Method of creating active multipaths for mimo wireless systems
GB0420164D0 (en) * 2004-09-10 2004-10-13 Nokia Corp A scheduler
KR100715910B1 (ko) 2004-09-20 2007-05-08 삼성전자주식회사 다중 접속 방식을 사용하는 이동 통신 시스템의 셀 탐색장치 및 방법
RU2285388C2 (ru) 2004-09-27 2006-10-20 Оао "Онежский Тракторный Завод" Машина для бесчокерной трелевки деревьев
WO2006034577A1 (en) 2004-09-30 2006-04-06 Nortel Networks Limited Channel sounding in ofdma system
US8325863B2 (en) 2004-10-12 2012-12-04 Qualcomm Incorporated Data detection and decoding with considerations for channel estimation errors due to guard subbands
US7969858B2 (en) 2004-10-14 2011-06-28 Qualcomm Incorporated Wireless terminal methods and apparatus for use in wireless communications systems supporting different size frequency bands
US7636328B2 (en) 2004-10-20 2009-12-22 Qualcomm Incorporated Efficient transmission of signaling using channel constraints
US7616955B2 (en) 2004-11-12 2009-11-10 Broadcom Corporation Method and system for bits and coding assignment utilizing Eigen beamforming with fixed rates for closed loop WLAN
US7139328B2 (en) * 2004-11-04 2006-11-21 Motorola, Inc. Method and apparatus for closed loop data transmission
US7627051B2 (en) 2004-11-08 2009-12-01 Samsung Electronics Co., Ltd. Method of maximizing MIMO system performance by joint optimization of diversity and spatial multiplexing
PT1829262T (pt) 2004-11-16 2018-05-15 Qualcomm Inc Controlo de velocidade em ciclo fechado para um sistema de comunicações mimo
US20060104333A1 (en) 2004-11-18 2006-05-18 Motorola, Inc. Acknowledgment for a time division channel
US20060111054A1 (en) 2004-11-22 2006-05-25 Interdigital Technology Corporation Method and system for selecting transmit antennas to reduce antenna correlation
US7512096B2 (en) * 2004-11-24 2009-03-31 Alcatel-Lucent Usa Inc. Communicating data between an access point and multiple wireless devices over a link
US7593473B2 (en) 2004-12-01 2009-09-22 Bae Systems Information And Electronic Systems Integration Inc. Tree structured multicarrier multiple access systems
US7822128B2 (en) 2004-12-03 2010-10-26 Intel Corporation Multiple antenna multicarrier transmitter and method for adaptive beamforming with transmit-power normalization
EP1820287A4 (en) 2004-12-08 2012-07-11 Korea Electronics Telecomm Transmitter, receiver and method for controlling a system with multiple inputs and outputs
EP1834436A2 (en) 2004-12-22 2007-09-19 QUALCOMM Incorporated Methods and apparatus for flexible hopping in a multiple-access communication network
US7940710B2 (en) 2004-12-22 2011-05-10 Qualcomm Incorporated Methods and apparatus for efficient paging in a wireless communication system
US8179876B2 (en) 2004-12-22 2012-05-15 Qualcomm Incorporated Multiple modulation technique for use in a communication system
US8238923B2 (en) 2004-12-22 2012-08-07 Qualcomm Incorporated Method of using shared resources in a communication system
US7543197B2 (en) 2004-12-22 2009-06-02 Qualcomm Incorporated Pruned bit-reversal interleaver
US20060140289A1 (en) 2004-12-27 2006-06-29 Mandyam Giridhar D Method and apparatus for providing an efficient pilot scheme for channel estimation
CN1642335A (zh) 2005-01-06 2005-07-20 东南大学 移动通信系统混合无线资源管理方法
US7778826B2 (en) 2005-01-13 2010-08-17 Intel Corporation Beamforming codebook generation system and associated methods
CN101103571B (zh) 2005-01-18 2011-12-14 夏普株式会社 无线通信装置、便携式终端以及无线通信方法
JP2006211537A (ja) 2005-01-31 2006-08-10 Nec Corp コード状態変更装置、コード状態変更方法、およびコード状態変更プログラム
KR100966044B1 (ko) 2005-02-24 2010-06-28 삼성전자주식회사 다중 셀 통신 시스템에서 주파수 자원 할당 시스템 및 방법
KR20060096365A (ko) 2005-03-04 2006-09-11 삼성전자주식회사 다중 사용자 다중입력 다중출력（ｍｕ－ｍｉｍｏ）통신시스템의 사용자 스케줄링 방법
US8135088B2 (en) 2005-03-07 2012-03-13 Q1UALCOMM Incorporated Pilot transmission and channel estimation for a communication system utilizing frequency division multiplexing
US8095141B2 (en) 2005-03-09 2012-01-10 Qualcomm Incorporated Use of supplemental assignments
US20060203794A1 (en) 2005-03-10 2006-09-14 Qualcomm Incorporated Systems and methods for beamforming in multi-input multi-output communication systems
US7720162B2 (en) 2005-03-10 2010-05-18 Qualcomm Incorporated Partial FFT processing and demodulation for a system with multiple subcarriers
US9246560B2 (en) 2005-03-10 2016-01-26 Qualcomm Incorporated Systems and methods for beamforming and rate control in a multi-input multi-output communication systems
US9154211B2 (en) 2005-03-11 2015-10-06 Qualcomm Incorporated Systems and methods for beamforming feedback in multi antenna communication systems
US7512412B2 (en) 2005-03-15 2009-03-31 Qualcomm, Incorporated Power control and overlapping control for a quasi-orthogonal communication system
US8446892B2 (en) 2005-03-16 2013-05-21 Qualcomm Incorporated Channel structures for a quasi-orthogonal multiple-access communication system
US9143305B2 (en) 2005-03-17 2015-09-22 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9520972B2 (en) 2005-03-17 2016-12-13 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9461859B2 (en) 2005-03-17 2016-10-04 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US20090213950A1 (en) 2005-03-17 2009-08-27 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US8031583B2 (en) 2005-03-30 2011-10-04 Motorola Mobility, Inc. Method and apparatus for reducing round trip latency and overhead within a communication system
US7797018B2 (en) 2005-04-01 2010-09-14 Interdigital Technology Corporation Method and apparatus for selecting a multi-band access point to associate with a multi-band mobile station
US9184870B2 (en) 2005-04-01 2015-11-10 Qualcomm Incorporated Systems and methods for control channel signaling
US9408220B2 (en) 2005-04-19 2016-08-02 Qualcomm Incorporated Channel quality reporting for adaptive sectorization
US9036538B2 (en) 2005-04-19 2015-05-19 Qualcomm Incorporated Frequency hopping design for single carrier FDMA systems
US7768979B2 (en) 2005-05-18 2010-08-03 Qualcomm Incorporated Separating pilot signatures in a frequency hopping OFDM system by selecting pilot symbols at least hop away from an edge of a hop region
US7916681B2 (en) 2005-05-20 2011-03-29 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for communication channel error rate estimation
US8077692B2 (en) 2005-05-20 2011-12-13 Qualcomm Incorporated Enhanced frequency division multiple access for wireless communication
US20070183303A1 (en) 2005-05-26 2007-08-09 Zhouyue Pi Method and apparatus for specifying channel state information for multiple carriers
JP4599228B2 (ja) 2005-05-30 2010-12-15 株式会社日立製作所 無線送受信機
US8879511B2 (en) 2005-10-27 2014-11-04 Qualcomm Incorporated Assignment acknowledgement for a wireless communication system
US8842693B2 (en) 2005-05-31 2014-09-23 Qualcomm Incorporated Rank step-down for MIMO SCW design employing HARQ
US8565194B2 (en) 2005-10-27 2013-10-22 Qualcomm Incorporated Puncturing signaling channel for a wireless communication system
US8462859B2 (en) 2005-06-01 2013-06-11 Qualcomm Incorporated Sphere decoding apparatus
US7403470B2 (en) 2005-06-13 2008-07-22 Qualcomm Incorporated Communications system, methods and apparatus
JP4869724B2 (ja) 2005-06-14 2012-02-08 株式会社エヌ・ティ・ティ・ドコモ 送信装置、送信方法、受信装置及び受信方法
EP1734773A1 (en) 2005-06-14 2006-12-20 Alcatel A method for uplink interference coordination in single frequency networks, a base station a mobile terminal and a mobile network therefor
US8098667B2 (en) 2005-06-16 2012-01-17 Qualcomm Incorporated Methods and apparatus for efficient providing of scheduling information
US9179319B2 (en) 2005-06-16 2015-11-03 Qualcomm Incorporated Adaptive sectorization in cellular systems
US8503371B2 (en) 2005-06-16 2013-08-06 Qualcomm Incorporated Link assignment messages in lieu of assignment acknowledgement messages
US8750908B2 (en) 2005-06-16 2014-06-10 Qualcomm Incorporated Quick paging channel with reduced probability of missed page
US8599945B2 (en) 2005-06-16 2013-12-03 Qualcomm Incorporated Robust rank prediction for a MIMO system
US8254924B2 (en) 2005-06-16 2012-08-28 Qualcomm Incorporated Method and apparatus for adaptive registration and paging area determination
US20070071147A1 (en) 2005-06-16 2007-03-29 Hemanth Sampath Pseudo eigen-beamforming with dynamic beam selection
DE102005028179A1 (de) 2005-06-17 2006-12-28 Siemens Ag Verfahren zum Verbindungsaufbau durch mobile Endgeräte in Kommunikationsnetzen mit variablen Bandbreiten
WO2007002032A2 (en) 2005-06-20 2007-01-04 Texas Instruments Incorporated Slow uplink power control
KR100606099B1 (ko) 2005-06-22 2006-07-31 삼성전자주식회사 주파수 분할 다중 접속 방식시스템에서의 긍정 및 부정응답 채널을 설정하는 방법 및 장치
JP2007003957A (ja) 2005-06-27 2007-01-11 Matsushita Electric Ind Co Ltd 車両用通信システム
WO2007004788A1 (en) 2005-07-04 2007-01-11 Samsung Electronics Co., Ltd. Position measuring system and method using wireless broadband (wibro) signal
US8249192B2 (en) 2005-07-18 2012-08-21 Nokia Corporation Techniques to transmit data rate control signals for multi-carrier wireless systems
US20070025345A1 (en) 2005-07-27 2007-02-01 Bachl Rainer W Method of increasing the capacity of enhanced data channel on uplink in a wireless communications systems
US7403745B2 (en) 2005-08-02 2008-07-22 Lucent Technologies Inc. Channel quality predictor and method of estimating a channel condition in a wireless communications network
US20070183386A1 (en) 2005-08-03 2007-08-09 Texas Instruments Incorporated Reference Signal Sequences and Multi-User Reference Signal Sequence Allocation
US8885628B2 (en) 2005-08-08 2014-11-11 Qualcomm Incorporated Code division multiplexing in a single-carrier frequency division multiple access system
US7508842B2 (en) 2005-08-18 2009-03-24 Motorola, Inc. Method and apparatus for pilot signal transmission
DE202006021141U1 (de) 2005-08-18 2013-01-18 Beceem Communications, Inc. Antennenvirtualisierung in Kommunikationssystemen
US20070041457A1 (en) 2005-08-22 2007-02-22 Tamer Kadous Method and apparatus for providing antenna diversity in a wireless communication system
US8331463B2 (en) 2005-08-22 2012-12-11 Qualcomm Incorporated Channel estimation in communications
US9209956B2 (en) 2005-08-22 2015-12-08 Qualcomm Incorporated Segment sensitive scheduling
KR101061745B1 (ko) 2005-08-24 2011-09-02 퀄컴 인코포레이티드 무선 통신 시스템에 대한 변경되는 송신 시간 간격
US8644292B2 (en) 2005-08-24 2014-02-04 Qualcomm Incorporated Varied transmission time intervals for wireless communication system
US20070047495A1 (en) 2005-08-29 2007-03-01 Qualcomm Incorporated Reverse link soft handoff in a wireless multiple-access communication system
US9136974B2 (en) 2005-08-30 2015-09-15 Qualcomm Incorporated Precoding and SDMA support
DE102005041273B4 (de) 2005-08-31 2014-05-08 Intel Mobile Communications GmbH Verfahren zum rechnergestützten Bilden von Systeminformations-Medium-Zugriffs-Steuerungs-Protokollnachrichten, Medium-Zugriffs-Steuerungs-Einheit und Computerprogrammelement
US20090022098A1 (en) 2005-10-21 2009-01-22 Robert Novak Multiplexing schemes for ofdma
US20070165738A1 (en) 2005-10-27 2007-07-19 Barriac Gwendolyn D Method and apparatus for pre-coding for a mimo system
US9172453B2 (en) 2005-10-27 2015-10-27 Qualcomm Incorporated Method and apparatus for pre-coding frequency division duplexing system
US9210651B2 (en) 2005-10-27 2015-12-08 Qualcomm Incorporated Method and apparatus for bootstraping information in a communication system
US8477684B2 (en) 2005-10-27 2013-07-02 Qualcomm Incorporated Acknowledgement of control messages in a wireless communication system
US9088384B2 (en) 2005-10-27 2015-07-21 Qualcomm Incorporated Pilot symbol transmission in wireless communication systems
US7835460B2 (en) 2005-10-27 2010-11-16 Qualcomm Incorporated Apparatus and methods for reducing channel estimation noise in a wireless transceiver
US8045512B2 (en) 2005-10-27 2011-10-25 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US9144060B2 (en) 2005-10-27 2015-09-22 Qualcomm Incorporated Resource allocation for shared signaling channels
US9225416B2 (en) 2005-10-27 2015-12-29 Qualcomm Incorporated Varied signaling channels for a reverse link in a wireless communication system
US8582509B2 (en) 2005-10-27 2013-11-12 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US8134977B2 (en) 2005-10-27 2012-03-13 Qualcomm Incorporated Tune-away protocols for wireless systems
US9225488B2 (en) 2005-10-27 2015-12-29 Qualcomm Incorporated Shared signaling channel
US8649362B2 (en) 2005-11-02 2014-02-11 Texas Instruments Incorporated Methods for determining the location of control channels in the uplink of communication systems
US8582548B2 (en) 2005-11-18 2013-11-12 Qualcomm Incorporated Frequency division multiple access schemes for wireless communication
US8891457B2 (en) 2005-12-08 2014-11-18 Apple Inc. Resource assignment systems and methods
US8437251B2 (en) 2005-12-22 2013-05-07 Qualcomm Incorporated Methods and apparatus for communicating transmission backlog information
US9451491B2 (en) 2005-12-22 2016-09-20 Qualcomm Incorporated Methods and apparatus relating to generating and transmitting initial and additional control information report sets in a wireless system
US9148795B2 (en) 2005-12-22 2015-09-29 Qualcomm Incorporated Methods and apparatus for flexible reporting of control information
KR100793315B1 (ko) 2005-12-31 2008-01-11 포스데이타 주식회사 다운링크 프리앰블을 이용한 반송파 신호 대 잡음비 측정장치 및 방법
US8831607B2 (en) 2006-01-05 2014-09-09 Qualcomm Incorporated Reverse link other sector communication
US7486408B2 (en) 2006-03-21 2009-02-03 Asml Netherlands B.V. Lithographic apparatus and device manufacturing method with reduced scribe lane usage for substrate measurement
US20070242653A1 (en) 2006-04-13 2007-10-18 Futurewei Technologies, Inc. Method and apparatus for sharing radio resources in an ofdma-based communication system
EP1855424B1 (en) 2006-05-12 2013-07-10 Panasonic Corporation Reservation of radio resources for users in a mobile communications system
US8259695B2 (en) 2007-04-30 2012-09-04 Alcatel Lucent Method and apparatus for packet wireless telecommunications
US8254487B2 (en) 2007-08-09 2012-08-28 Samsung Electronics Co., Ltd. Method and apparatus of codebook-based single-user closed-loop transmit beamforming (SU-CLTB) for OFDM wireless systems
US20090180459A1 (en) 2008-01-16 2009-07-16 Orlik Philip V OFDMA Frame Structures for Uplinks in MIMO Networks
CN102177665B (zh) 2008-08-12 2015-04-22 黑莓有限公司 在无线通信网络中实现下行链路透明中继的方法、设备及系统
US8228862B2 (en) 2008-12-03 2012-07-24 Samsung Electronics Co., Ltd. Method and system for reference signal pattern design
US8238483B2 (en) 2009-02-27 2012-08-07 Marvell World Trade Ltd. Signaling of dedicated reference signal (DRS) precoding granularity
US20100232384A1 (en) 2009-03-13 2010-09-16 Qualcomm Incorporated Channel estimation based upon user specific and common reference signals
KR200471652Y1 (ko) 2013-08-07 2014-03-12 남경탁 의자 일체형 가구

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1636346A (zh) * 2002-01-08 2005-07-06 高通股份有限公司 Mimo－ofdm通信系统的资源分配

Also Published As

Publication number Publication date
TW200733626A (en) 2007-09-01
US20070097910A1 (en) 2007-05-03
AR056599A1 (es) 2007-10-10
CA2625713C (en) 2012-01-10
AU2006305766A1 (en) 2007-05-03
EP1941692A1 (en) 2008-07-09
KR100979398B1 (ko) 2010-09-01
KR20080070721A (ko) 2008-07-30
WO2007051181A1 (en) 2007-05-03
CN101297529A (zh) 2008-10-29
TWI348877B (en) 2011-09-11
RU2407156C2 (ru) 2010-12-20
EP1941692B1 (en) 2015-12-09
JP2009514451A (ja) 2009-04-02
NO20082347L (no) 2008-05-23
RU2008121200A (ru) 2009-12-10
IL190762A0 (en) 2008-11-03
JP4694628B2 (ja) 2011-06-08
ES2561943T3 (es) 2016-03-01
US8693405B2 (en) 2014-04-08
BRPI0617899A2 (pt) 2011-08-09
CA2625713A1 (en) 2007-05-03
NZ567292A (en) 2010-08-27

Similar Documents

Publication Publication Date Title
CN101297529B (zh) Sdma资源管理
CN101297514B (zh) 传输模式选择、预编码和空分多址支持
JP5905436B2 (ja) 適応セクタ化のためのチャンネル品質報告
JP4865794B2 (ja) セグメントセンシティブスケジューリング
CN101529962B (zh) 实现无线通信系统的资源划分
JP5745005B2 (ja) セルラシステムにおける適応性のあるセクタ化
US8867453B2 (en) System and method for subcarrier allocation signaling in a multicarrier wireless network
US8331946B2 (en) Methods and apparatus for supporting multiple users in a system with multiple polarized antennas
CN101536351B (zh) 根据子带负荷进行发射功率控制的方法
JP2016123109A (ja) 無線通信システムのための信号取得
JP4971174B2 (ja) 通信システム
CN103179078A (zh) 激活用户设备的参考信号发射的方法、基站和用户设备
EP1618748A2 (en) Methods and apparatus of enhancing performance in wireless communication systems
JP4971173B2 (ja) 通信システム
MX2008005481A (en) Sdma resource management

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
REG Reference to a national code

Ref country code: HK

Ref legal event code: DE

Ref document number: 1125513

Country of ref document: HK

C14 Grant of patent or utility model
GR01 Patent grant
REG Reference to a national code

Ref country code: HK

Ref legal event code: WD

Ref document number: 1125513

Country of ref document: HK