-
公开(公告)号：US07701909B2
公开(公告)日：2010-04-20
申请号：US10778191
申请日：2004-02-17
申请人： Krishna Balachandran , Tingfang Ji , Joseph H. Kang , Wei Luo , Hsuan-Jung Su
发明人： Krishna Balachandran , Tingfang Ji , Joseph H. Kang , Wei Luo , Hsuan-Jung Su
IPC分类号： H04B7/216
CPC分类号： H04L27/2608 , H04B1/713
摘要： Information is transmitted over selected, Orthogonal Frequency Division Multiplexed (OFDM) sub-channels to avoid frequencies with unacceptable congestion, noise or interference levels. Using frequency hopping, selected non-contiguous OFDM sub-channels used for transmission may vary with time. Once a group of OFDM sub-channels is selected, a power level and modulation technique may also be selected based on channel quality.
摘要翻译： 信息通过选定的正交频分复用（OFDM）子信道传输，以避免具有不可接受的拥塞，噪声或干扰电平的频率。 使用跳频，用于传输的所选非连续OFDM子信道可随时间变化。 一旦选择了一组OFDM子信道，也可以基于信道质量来选择功率电平和调制技术。
-
62.发明申请Broadcast and multicast in single frequency networks using othrogonal space-time codes 有权使用正交时空码在单频网络中进行广播和多播公开(公告)号：US20100008281A1
公开(公告)日：2010-01-14
申请号：US12216823
申请日：2008-07-11
CPC分类号： H04L1/0668 , H04L1/0625 , H04L1/0631 , H04L5/0023
摘要： In one embodiment, a method of transmitting includes assigning column vectors of a generalized orthogonal space time code matrix to coverage areas of a plurality of base stations such that each coverage area is assigned one column vector. The same data is transmitted from each of the plurality of base stations in the coverage areas such that the data transmitted in each coverage area is transmitted using the column vector assigned to the coverage area.
摘要翻译： 在一个实施例中，一种发送方法包括将广义正交空间时间码矩阵的列向量分配给多个基站的覆盖区域，使得每个覆盖区域被分配一列列向量。 从覆盖区域中的多个基站的每一个发送相同的数据，使得使用分配给覆盖区域的列向量来发送在每个覆盖区域中发送的数据。
-
63.发明授权Methods of receiving signaling information in a communication network supporting a broadcast-multicast service 有权在支持广播多播服务的通信网络中接收信令信息的方法公开(公告)号：US07454165B2
公开(公告)日：2008-11-18
申请号：US11723085
申请日：2007-03-16
IPC分类号： H04Q7/20
CPC分类号： H04W72/005 , H04W68/025
摘要： Methods for signaling information to a group of users in a communication network supporting a broadcast-multicast service are described, in which one or more indicator bits of a sequence may be assigned to indicate transmission of signaling information that is related to the group. The sequence may be transmitted to the group on a first channel, with the signaling information related to the group being transmitted on a second channel.
摘要翻译： 描述了在支持广播多播服务的通信网络中向一组用户发送信息的方法，其中可以分配序列的一个或多个指示符比特以指示与该组相关的信令信息的传输。 该序列可以在第一信道上发送到组，其中与在第二信道上发送的组相关的信令信息。
-
64.发明授权Methods and apparatuses for allocating time slots to half duplex wireless mobile stations 有权为半双工无线移动台分配时隙的方法和装置公开(公告)号：US07352714B2
公开(公告)日：2008-04-01
申请号：US10252797
申请日：2002-09-24
申请人： Krishna Balachandran , Kirk K. Chang , Wei Luo , Sanjiv Nanda
发明人： Krishna Balachandran , Kirk K. Chang , Wei Luo , Sanjiv Nanda
IPC分类号： H04B7/212
CPC分类号： H04W72/0446
摘要： Methods and apparatuses for allocating control and data time slots to a plurality of wireless mobile stations in a wireless communication system using time division multiplexing. The methods and apparatuses assign such time slots by first placing the wireless mobile stations into a number of different groups. Then, control time slots and anchor data time slots are assigned to the groups in the uplink and downlink frames of a carrier such that the uplink control time slot for each group is maximally spaced in time relative to the downlink control time slot for the same group. Data time slots are subsequently assigned to a particular mobile station by assigning time slots in the uplink and downlink frames which are as close as possible to the group's uplink or downlink anchor data time slots, as the case may be, according to a “grow from center” technique.
摘要翻译： 在使用时分复用的无线通信系统中，向多个无线移动站分配控制和数据时隙的方法和装置。 所述方法和装置通过首先将无线移动站放置到多个不同的组中来分配这样的时隙。 然后，将控制时隙和锚数据时隙分配给载波的上行链路和下行链路中的组，使得每个组的上行链路控制时隙相对于相同组的下行链路控制时隙在时间上最大间隔 。 随后，通过分配尽可能接近组的上行链路或下行链路锚定数据时隙（根据情况可能）的上行链路和下行链路帧中的时隙，随后将数据时隙分配给特定的移动台。 中心“技术。
-
公开(公告)号：US20080075032A1
公开(公告)日：2008-03-27
申请号：US11534271
申请日：2006-09-22
申请人： Krishna Balachandran , Doru Calin , Niranjan Sudhir Joshi , Joseph H. Kang , Achilles Kogiantis
发明人： Krishna Balachandran , Doru Calin , Niranjan Sudhir Joshi , Joseph H. Kang , Achilles Kogiantis
CPC分类号： H04W72/04 , H04W72/0486 , H04W72/08
摘要： The present invention provides a method for allocating portions of a frame to a plurality of mobile units including a plurality of frequency subcarrier sets and a plurality of symbols. The method includes determining at least one zone comprising at least one of the plurality of subcarrier sets and at least one of the plurality of symbols and determining a plurality of subzones. Each subzone includes at least one of the plurality of subcarrier sets and at least one of the plurality of symbols in the at least one zone. The method also includes associating each of the plurality of mobile units with at least one of the subzones and allocating a portion of the subcarrier sets and symbols in each subzone to the mobile units associated with each subzone.
摘要翻译： 本发明提供了一种用于将帧的部分分配给包括多个频率子载波集合和多个符号的多个移动单元的方法。 该方法包括确定包括多个子载波集合中的至少一个和多个符号中的至少一个的至少一个区域并确定多个子区域。 每个子区域包括多个子载波组中的至少一个以及至少一个区域中的多个符号中的至少一个。 该方法还包括将多个移动单元中的每一个与子区域中的至少一个相关联，并将每个子区域中的子载波集合和符号的一部分分配给与每个子区域相关联的移动单元。
-
公开(公告)号：US07260396B2
公开(公告)日：2007-08-21
申请号：US10642600
申请日：2003-08-19
IPC分类号： H04Q7/20
摘要： In a method of tracking a user in a communication network supporting a broadcast-multicast service, the network classifies groups of users into tracking areas. Movement of a user may be tracked as the user crosses a boundary between two tracking areas in the network. The method may enable a balance to be achieved between use of uplink overhead and the level or granularity of tracking desired, so as to conserve radio resources.
摘要翻译： 在支持广播多播服务的通信网络中跟踪用户的方法中，网络将用户组分类为跟踪区域。 当用户跨越网络中的两个跟踪区域之间的边界时，可以跟踪用户的移动。 该方法可以实现在上行链路开销的使用和期望的跟踪的级别或粒度之间实现平衡，以便节省无线电资源。
-
公开(公告)号：US20070047478A1
公开(公告)日：2007-03-01
申请号：US11214492
申请日：2005-08-30
申请人： Krishna Balachandran , Kenneth Budka , Joseph Kang
发明人： Krishna Balachandran , Kenneth Budka , Joseph Kang
IPC分类号： H04Q7/00
摘要： A method for access assurance in a wireless communication system, e.g., a mobile phone network, involves allocating communication resources for transactions between the network and various wireless access terminals (each having a unique identifier) based on priority classes assigned to the access terminals. The access terminals are divided into different priority classes based on public policy and similar considerations. Each access terminal's priority class is associated with its identifier in a database. Upon communicating with an access terminal, the network determines the access terminal's priority class based upon its identifier as received by the network, e.g., the identifier is correlated to the priority class in the database. Transaction priority levels are then calculated based on each access terminal's priority class. Air interface resources are allocated according to the computed transaction priority levels and one or more pre-determined allocation precedence rules governing priority.
摘要翻译： 在无线通信系统（例如，移动电话网络）中的接入保证方法涉及分配用于基于分配给接入终端的优先级的网络与各种无线接入终端之间（每个具有唯一标识符）的交易的通信资源。 基于公共政策和类似考虑，接入终端被划分为不同的优先级。 每个接入终端的优先级与其在数据库中的标识符相关联。 在与接入终端通信时，网络基于其由网络接收的标识符来确定接入终端的优先级，例如，该标识符与数据库中的优先级相关。 然后基于每个接入终端的优先级来计算事务优先级。 空中接口资源根据计算的事务优先级和一个或多个预定义的优先级分配优先级规则进行分配。
-
68.发明申请公开(公告)号：US20060245470A1
公开(公告)日：2006-11-02
申请号：US11118816
申请日：2005-04-29
申请人： Krishna Balachandran , Joseph Kang
发明人： Krishna Balachandran , Joseph Kang
IPC分类号： H04B1/00
CPC分类号： H04B1/715 , H04B1/7143
摘要： In a wireless communications system which hops from frequency to frequency, rather than hopping according to a fixed dwell interval and a pre-determined pseudo-random hop sequence, a quality-based frequency hopping methodology is defined in which a new frequency is hopped to when the channel quality on the current frequency degrades based on the measured value or values of one or more predetermined metrics that are associated with channel quality. When triggered to hop to a next frequency, the hop-to-frequency may be the next frequency in the pseudo-random hop sequence known to both the transmitter and receiver or, in order to improve the reliability of communications, may be determined based on channel quality measurements on different potential hop-to-frequencies.
摘要翻译： 在从频率跳频而不是根据固定的驻留间隔跳频和预定义的伪随机跳频序列的无线通信系统中，定义了基于质量的跳频方法，其中跳频到新的频率 基于与信道质量相关联的一个或多个预定度量的测量值或值，当前频率上的信道质量下降。 当被触发跳到下一个频率时，跳到频率可以是发射机和接收机都已知的伪随机跳序列中的下一个频率，或者为了提高通信的可靠性，可以基于 信道质量测量在不同的潜在跳到频率。
-
公开(公告)号：US07054346B2
公开(公告)日：2006-05-30
申请号：US09850124
申请日：2001-05-07
IPC分类号： H04B1/69
CPC分类号： H04B1/7143 , H04B2001/7154
摘要： A wireless endpoint employs frequency hopping for communicating signals in a wireless communications system. Over a time period T, the wireless endpoint performs pseudo-random selection of a frequency from a hopping set of N frequencies such that over at least a portion of the time period T, the frequency selection is constrained to less than the N frequencies.
-
70.发明授权公开(公告)号：US06996083B1
公开(公告)日：2006-02-07
申请号：US09650792
申请日：2000-08-30
CPC分类号： H04B7/2643
摘要： A method and system for reducing delay in wireless communications by use of a burst based access and assignment system. The method for setting up a communication channel uses short burst(s) (essentially a slot of a time frame). Time is saved by keeping the uplink and downlink channels flexible and independent of each other. Thus less time is used trying to fit all requests and responses into constrained choices as in previous protocols. The result is less delay to the mobile user and greater usage density for the wireless service provider.
摘要翻译： 一种通过使用基于突发的接入和分配系统来减少无线通信延迟的方法和系统。 用于建立通信信道的方法使用短突发（基本上是时间帧的时隙）。 通过保持上行链路和下行链路信道彼此灵活和独立来节省时间。 因此，像以前的协议一样，尝试将所有请求和响应都设置为约束选择的时间更少。 结果是对于移动用户的延迟较小，并且无线服务提供商的使用密度更高。
-
-
-
-
-
-
-
-
-
搜索结果
96 条记录 (耗时 0.033 秒)
