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81. 发明申请

US20060013338A1 Incremental pilot insertion for channnel and interference estimation 有权
标题翻译：增量导频插入用于信道和干扰估计
公开(公告)号：US20060013338A1
公开(公告)日：2006-01-19
申请号：US11128976
申请日：2005-05-13
申请人： Dhananjay Gore , Avneesh Agrawal , Aamod Khandekar
发明人： Dhananjay Gore , Avneesh Agrawal , Aamod Khandekar
IPC分类号： H04L27/16
CPC分类号： H04L25/0226 , H04L5/0007 , H04L5/005 , H04L5/0051 , H04L5/006
摘要： Dynamic resource allocation systems, apparatus, and methods are disclosed for selectively improving the ability of a receiver to determine a channel estimate in an Orthogonal Frequency Division Multiple Access (OFDMA) system. A wireless communication system can use a common pilot channel configuration to aid channel estimation in one or more receivers in communication with the system. A receiver in communication with the system may be unable to demodulate received data due to an inaccurate channel estimate. The receiver can communicate to a transmitter in the system a request for additional channel estimation resources. The wireless communication system can provide additional channel estimation resources by inserting dedicated pilot channels into one or more of the frequencies allocated to symbols for the receiver. If the receiver is still unable to demodulate received data, the wireless communication system can incrementally insert additional pilot channels in the symbol associated with the receiver.
摘要翻译：公开了动态资源分配系统，装置和方法，用于选择性地提高接收机在正交频分多址（OFDMA）系统中确定信道估计的能力。无线通信系统可以使用公共导频信道配置来帮助与系统通信的一个或多个接收机中的信道估计。与系统通信的接收机可能由于不准确的信道估计而无法解调所接收的数据。接收机可以向系统中的发射机通信另外的信道估计资源的请求。无线通信系统可以通过将专用导频信道插入分配给接收机的符号的一个或多个频率来提供额外的信道估计资源。如果接收机仍然不能解调所接收的数据，则无线通信系统可以递增地在与接收机相关联的符号中插入附加的导频信道。

82. 发明授权

US08014781B2 Intra-cell common reuse for a wireless communications system 有权
标题翻译：无线通信系统的小区内常用重用
公开(公告)号：US08014781B2
公开(公告)日：2011-09-06
申请号：US10969540
申请日：2004-10-20
申请人： Tingfang Ji , Avneesh Agrawal
发明人： Tingfang Ji , Avneesh Agrawal
IPC分类号： H04W40/00
CPC分类号： H04W72/082 , H04L5/023 , H04W16/24 , H04W72/085
摘要： To avoid or reduce intra-cell interference, each sector of a cell is associated with a sector-specific set of system resources (e.g., subbands) and at least one non-overlapping common set of system resources. Each common set for each sector includes system resources observing little or no interference from at least one other sector in the cell. The channel condition for a terminal in a given sector x is ascertained based on forward and/or reverse link measurements for the terminal. The terminal is assigned system resources from a common set or a sector-specific set for sector x based on the terminal's channel condition. For example, if the terminal observes high interference from another sector y, then the terminal is assigned system resources from a common set that observes little or no interference from sector y. The techniques may be used for an OFDMA system that uses frequency hopping.
摘要翻译：为了避免或减少小区内干扰，小区的每个扇区与系统资源（例如子带）的扇区特定集合和至少一个不重叠的公共系统资源集合相关联。每个扇区的每个公共集合包括观察到小区中至少一个其他扇区几乎或不受干扰的系统资源。基于终端的前向和/或反向链路测量来确定给定扇区x中的终端的信道条件。基于终端的信道条件，从通用集或针对扇区x的扇区特定集分配终端。例如，如果终端观察到来自另一个扇区y的高干扰，则终端从公共集分配系统资源，其观察到来自扇区y的很少或没有干扰。这些技术可以用于使用跳频的OFDMA系统。

83. 发明申请

US20090197603A1 SERVING BASE STATION SELECTION IN A WIRELESS COMMUNICATION NETWORK 有权
标题翻译：在无线通信网络中进行基站选择
公开(公告)号：US20090197603A1
公开(公告)日：2009-08-06
申请号：US12331156
申请日：2008-12-09
申请人： Tingfang Ji , Aamod D. Khandekar , Naga Bhushan , Alexei Y. Gorokhov , Avneesh Agrawal
发明人： Tingfang Ji , Aamod D. Khandekar , Naga Bhushan , Alexei Y. Gorokhov , Avneesh Agrawal
IPC分类号： H04W36/00
CPC分类号： H04W36/0083 , Y02D70/00 , Y02D70/1222 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/146
摘要： Techniques for selecting a serving base station for a terminal in a wireless communication network are described. In one design, multiple candidate base stations for the terminal may be identified, with each candidate base station being a candidate for selection as the serving base station for the terminal. The multiple candidate base stations may include base stations with different transmit power levels and/or may support interference mitigation. One of the multiple candidate base stations may be selected as the serving base station. In one design, the serving base station may be selected based on at least one metric for each candidate base station. The at least one metrics may be for pathloss, effective transmit power, effective geometry, projected data rate, control channel reliability, network utility, etc. The selected candidate base station may have a lower SINR than a highest SINR among the multiple candidate base stations.
摘要翻译：描述了用于在无线通信网络中为终端选择服务基站的技术。在一种设计中，可以识别用于终端的多个候选基站，其中每个候选基站是用于选择的候选作为终端的服务基站。多个候选基站可以包括具有不同发射功率电平的基站和/或可以支持干扰减轻。可以选择多个候选基站中的一个作为服务基站。在一种设计中，可以基于每个候选基站的至少一个度量来选择服务基站。所述至少一个度量可以用于路径损耗，有效发射功率，有效几何，投影数据速率，控制信道可靠性，网络效用等。所选择的候选基站可以具有比多个候选基站中的最高SINR更低的SINR 。

84. 发明授权

US09585023B2 Layered reuse for a wireless communication system 有权
标题翻译：无线通信系统的分层重用
公开(公告)号：US09585023B2
公开(公告)日：2017-02-28
申请号：US10858870
申请日：2004-06-01
申请人： Tingfang Ji , Avneesh Agrawal , Gavin Horn , Edward Harrison Teague
发明人： Tingfang Ji , Avneesh Agrawal , Gavin Horn , Edward Harrison Teague
IPC分类号： H04W16/02 , H04W16/12 , H04W72/04 , H04W72/08
CPC分类号： H04W16/02 , H04W16/12 , H04W72/048 , H04W72/085
摘要： To reduce inter-sector interference for “weak” users and combat a potentially large variation in interference levels observed by “strong” and weak users, system resources (e.g., frequency subbands) available for data transmission in a system are partitioned into multiple (e.g., three) disjoint sets. Each sector in the system is assigned one subband set. Neighboring sectors are assigned different subband sets such that the subband set assigned to each sector is orthogonal to the subband sets assigned to neighboring sectors. Each sector has an assigned subband set and an unassigned subband set, which contains all subbands not in the assigned set. Weak users in each sector (which are typically strong interferers to neighboring sectors) are allocated subbands in the assigned set. Strong users in each sector are allocated subbands in the unassigned set. The weak users in each sector are then orthogonal to strong interferers in neighboring sectors.
摘要翻译：为了减少“弱”用户的扇区间干扰，并且打击“强”和弱用户观察到的干扰水平的潜在巨大变化，可用于系统中的数据传输的系统资源（例如，频率子带）被划分为多个（例如，，三）不相交的集合。系统中的每个扇区被分配一个子带集。分配相邻扇区的不同子带组，使得分配给每个扇区的子带集与分配给相邻扇区的子带集正交。每个扇区具有分配的子带集和未分配的子带集合，其包含不在分配集合中的所有子带。每个扇区（通常是相邻扇区的强干扰源）中的弱用户在分配集中被分配子带。每个扇区中的强用户在未分配的集合中分配子带。每个扇区中的弱用户然后与相邻扇区中的强干扰源正交。

85. 发明授权

US08194560B2 Access point identifier configuration procedure 有权
标题翻译：接入点标识符配置过程
公开(公告)号：US08194560B2
公开(公告)日：2012-06-05
申请号：US12499438
申请日：2009-07-08
申请人： Tingfang Ji , Avneesh Agrawal , Aamod D. Khandekar
发明人： Tingfang Ji , Avneesh Agrawal , Aamod D. Khandekar
IPC分类号： G01R31/08
CPC分类号： H04W8/26 , H04W84/005
摘要： In an access point identifier configuration scheme, different procedures are used for configuring (e.g., updating) different types of access points. For example, the criteria used to determine which identifiers are to be assigned to mobile access points may be different than the criteria used to determine which identifiers are to be assigned to stationary access points.
摘要翻译：在接入点标识符配置方案中，使用不同的过程来配置（例如，更新）不同类型的接入点。例如，用于确定哪些标识符被分配给移动接入点的标准可以不同于用于确定哪些标识符被分配给固定接入点的标准。

86. 发明申请

US20100099449A1 INTERFERENCE MANAGEMENT WITH REDUCE INTERFERENCE REQUESTS AND INTERFERENCE INDICATORS 失效
标题翻译：干扰管理减少了干扰要求和干扰指标
公开(公告)号：US20100099449A1
公开(公告)日：2010-04-22
申请号：US12425302
申请日：2009-04-16
申请人： Mohammad J. Borran , Avneesh Agrawal , Aamod D. Khandekar , Alexei Y. Gorokhov , Naga Bhushan , Tingfang Ji
发明人： Mohammad J. Borran , Avneesh Agrawal , Aamod D. Khandekar , Alexei Y. Gorokhov , Naga Bhushan , Tingfang Ji
IPC分类号： H04B15/00 , H04B7/00
CPC分类号： H04W52/243 , H04W72/08
摘要： Techniques for managing interference in a wireless network are described. In an aspect, reduce interference requests and interference indicators may be used for interference management to enable operation in scenarios with dominant interferers. In one design, a terminal may receive a reduce interference request from a first base station requesting lower interference on specified time-frequency resources. The terminal may also receive an interference indicator conveying the interference observed by a second base station. The terminal may determine its transmit power based on the reduce interference request and the interference indicator. For example, the terminal may determine an initial transmit power based on the reduce interference request (or the interference indicator) and may adjust the initial transmit power based on the interference indicator (or the reduce interference request) to obtain its transmit power. The terminal may transmit data to a serving base station at the determined transmit power.
摘要翻译：描述了用于管理无线网络中的干扰的技术。在一个方面，减少干扰请求和干扰指示符可以用于干扰管理，以使得能够在具有主要干扰源的情况下进行操作。在一种设计中，终端可以从指定的时间 - 频率资源上请求较低干扰的第一基站接收减少干扰请求。终端还可以接收传达由第二基站观测到的干扰的干扰指示符。终端可以基于减少干扰请求和干扰指示符来确定其发射功率。例如，终端可以基于减少干扰请求（或干扰指示符）来确定初始发射功率，并且可以基于干扰指示符（或减少干扰请求）来调整初始发射功率以获得其发射功率。终端可以以所确定的发射功率向服务基站发送数据。

87. 发明申请

US20100099428A1 NULL PILOTS FOR INTERFERENCE ESTIMATION IN A WIRELESS COMMUNICATION NETWORK 有权
标题翻译：用于无线通信网络干扰估计的空值
公开(公告)号：US20100099428A1
公开(公告)日：2010-04-22
申请号：US12425243
申请日：2009-04-16
申请人： Naga Bhushan , Alexei Y. Gorokhov , Mohammad J. Borran , Avneesh Agrawal , Aamod D. Khandekar , Tingfang Ji
发明人： Naga Bhushan , Alexei Y. Gorokhov , Mohammad J. Borran , Avneesh Agrawal , Aamod D. Khandekar , Tingfang Ji
IPC分类号： H04W72/00 , H04B15/00
CPC分类号： H04W72/082 , H04J11/0059 , H04L5/0007 , H04L5/0035 , H04L5/0048 , H04W24/08
摘要： Techniques for transmitting null pilots to support interference estimation in a wireless network are described. A null pilot is non-transmission on designated time-frequency resources by a cell or a cluster of cells supporting cooperative transmission to a UE. The received power of the null pilot from the cell or cluster of cells may be indicative of interference from other cells. In one design, a cell in the cluster may determine resources for sending a null pilot by the cell. The cell may transmit the null pilot (i.e., send no transmissions) on the resources to allow UEs to estimate out-of-cluster interference. Some or all cells in the cluster may transmit null pilots on the same resources. The cell may receive interference and channel information from the UE and may send data transmission to the UE based on the interference and/or channel information. Remaining cells in the cluster may reduce interference to the UE.
摘要翻译：描述了用于发送空导频以支持无线网络中的干扰估计的技术。空导频是通过支持向UE的协作传输的小区或小区集群在指定的时间 - 频率资源上进行非传输。来自小区或小区簇的空导频的接收功率可以指示来自其他小区的干扰。在一种设计中，集群中的小区可以确定用于由小区发送空导频的资源。小区可以在资源上发送空导频（即，不发送传输），以允许UE估计簇外干扰。集群中的一些或所有单元可以在相同的资源上传输空导频。小区可以从UE接收干扰和信道信息，并且可以基于干扰和/或信道信息向UE发送数据传输。群集中的剩余小区可以减少对UE的干扰。

88. 发明申请

US20100008258A1 ACCESS POINT IDENTIFIER CONFIGURATION PROCEDURE 有权
标题翻译：访问点识别器配置程序
公开(公告)号：US20100008258A1
公开(公告)日：2010-01-14
申请号：US12499438
申请日：2009-07-08
申请人： Tingfang Ji , Avneesh Agrawal , Aamod D. Khandekar
发明人： Tingfang Ji , Avneesh Agrawal , Aamod D. Khandekar
IPC分类号： H04L12/28
CPC分类号： H04W8/26 , H04W84/005
摘要： In an access point identifier configuration scheme, different procedures are used for configuring (e.g., updating) different types of access points. For example, the criteria used to determine which identifiers are to be assigned to mobile access points may be different than the criteria used to determine which identifiers are to be assigned to stationary access points.
摘要翻译：在接入点标识符配置方案中，使用不同的过程来配置（例如，更新）不同类型的接入点。例如，用于确定哪些标识符被分配给移动接入点的标准可以不同于用于确定哪些标识符被分配给固定接入点的标准。

89. 发明申请

US20090022178A1 METHODS AND SYSTEMS FOR ADAPTIVE TRANSMISSION OF CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统中自适应传输控制信息的方法与系统
公开(公告)号：US20090022178A1
公开(公告)日：2009-01-22
申请号：US12165644
申请日：2008-06-30
申请人： Tingfang Ji , Ayman Fawzy Naguib , Avneesh Agrawal
发明人： Tingfang Ji , Ayman Fawzy Naguib , Avneesh Agrawal
IPC分类号： H04J3/16 , H04L29/06
CPC分类号： H04W28/06 , H04L5/0053 , H04L5/0094 , H04L27/2602 , H04W72/1242 , H04W72/14
摘要： A method for adaptive transmission of control information in a wireless communication system may include generating a control segment carrying control information. The control segment may have a configurable size. The method may also include generating a pointer for the control segment. The pointer may indicate a location of the control segment in a downlink subframe. The pointer may also indicate a size of the control segment. The method may also include sending the pointer and the control segment.
摘要翻译：无线通信系统中的控制信息的自适应传输方法可以包括生成携带控制信息的控制段。控制段可以具有可配置的大小。该方法还可以包括生成用于控制段的指针。指针可以指示下行链路子帧中的控制段的位置。指针也可以指示控制段的大小。该方法还可以包括发送指针和控制段。

90. 发明申请

US20070097910A1 SDMA resource management 有权
标题翻译： SDMA资源管理
公开(公告)号：US20070097910A1
公开(公告)日：2007-05-03
申请号：US11261837
申请日：2005-10-27
申请人： Tingfang Ji , Dhananjay Gore , Alexei Gorokhov , Min Dong , Avneesh Agrawal
发明人： Tingfang Ji , Dhananjay Gore , Alexei Gorokhov , Min Dong , Avneesh Agrawal
IPC分类号： H04Q7/00
CPC分类号： H04W72/06 , H04B1/713 , H04B7/026 , H04L5/0023 , H04L5/0037 , H04L5/0044 , H04L5/023
摘要： A method for allocating resources in a wireless communications environment comprises receiving a mapping between a first hop-port and frequency range, and determining whether to map a second access terminal to a second hop-port that is mapped to at least the same frequency range during a substantially similar instance in time, the determination made as a function of characteristics relating to a first access terminal associated with the first hop-port. The method can further include determining that the first access terminal is a candidate for employing Space-Division Multiple Access (SDMA), and mapping the second-hop port and associating the second access terminal with the second hop-port when the second access terminal is also a candidate for employing SDMA.
摘要翻译：一种用于在无线通信环境中分配资源的方法包括：接收第一跳跃端口和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映射到至少相同频率范围的第二跳频端口基本相似的时间实例，根据与与第一跳跃端口相关联的第一接入终端的特性的函数进行确定。该方法还可以包括确定第一接入终端是采用空分多址（SDMA）的候选者，并且当第二接入终端是第二接入终端时，映射第二跳接口并将第二接入终端与第二跳接口相关联也是采用SDMA的候选人。

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