公开(公告)号：US20050058098A1

公开(公告)日：2005-03-17

申请号：US10962957

申请日：2004-10-12

申请人： Israel Klein ,  Kenneth Stanwood ,  Steve Pollmann ,  Frederick Price ,  Rami Hadar ,  Eli Arviv ,  David Gazelle ,  Sheldon Gilbert

发明人： Israel Klein ,  Kenneth Stanwood ,  Steve Pollmann ,  Frederick Price ,  Rami Hadar ,  Eli Arviv ,  David Gazelle ,  Sheldon Gilbert

IPC分类号： H04B7/26 ,  H04J3/00 ,  H04L1/00 ,  H04L25/03 ,  H04L27/00 ,  H04Q7/00

CPC分类号： H04B7/2656 ,  H04L1/0003 ,  H04L1/0004 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/0065 ,  H04L1/0083 ,  H04L25/03038 ,  H04L27/0008 ,  H04L2025/0342 ,  H04L2025/03477 ,  H04W72/0446 ,  H04W88/02 ,  H04W88/08 ,  Y02D50/10

摘要： A method of assigning downlink time slots to receive units where the units may generate data using different modulation schemes. The method preferably assigns the downlink time slots as a function of the complexity of modulation schemes employed by the units. Further, the method preferably assigns the time slots from the least complex modulation scheme to the most complex scheme. The method may further assign uplink time slots to transmit units where the transmit units may generate data using different modulation schemes. The method preferably assigns the uplink time slots as a function of the complexity of modulation schemes employed by the uplink units. Further, the method preferably assigns the uplink time slots from the least complex modulation scheme to the most complex scheme. In other embodiments, the downlink time slots are assigned as a function of the bit per symbol rate employed by the receive units, preferably from the lowest bit per symbol rate to the highest bit per symbol rate. Further, the uplink time slots are assigned as a function of the bit per symbol rate employed by the transmit units, preferably from the lowest bit per symbol rate to the highest bit per symbol rate. The present invention is also a method of simplifying the encoding of a predetermined number of bits of data into frames. The method adds error coding bits so that a ratio of the frame length times the baud rate of the frame times the bit packing ratio of the data divided the total bits of data is always an integer. The method may also convolutionally encode the bits of data so that the same equation is also always an integer. The present invention is also a method of updating the weights of a FIR filter where the filter processes symbols having variable modulation rates. When the modulation rate of the incoming symbols changes, the weights corresponding to the first symbol having the new modulation rate are changed based as the symbol propagates through the filter.

公开(公告)号：US20050243745A1

公开(公告)日：2005-11-03

申请号：US11114662

申请日：2005-04-26

申请人： Kenneth Stanwood ,  James Mollenauer ,  Israel Klein ,  Sheldon Gilbert ,  Rami Hadar

发明人： Kenneth Stanwood ,  James Mollenauer ,  Israel Klein ,  Sheldon Gilbert ,  Rami Hadar

IPC分类号： H04J3/00 ,  H04B7/212 ,  H04L12/28 ,  H04L12/56 ,  H04Q11/04 ,  H04W4/06 ,  H04W28/04 ,  H04W28/06 ,  H04W28/14 ,  H04W28/20 ,  H04W72/04 ,  H04W74/00 ,  H04W74/06 ,  H04J3/22 ,  H04J3/16

CPC分类号： H04W72/0413 ,  H04L5/0064 ,  H04L5/0092 ,  H04L2012/5607 ,  H04L2012/561 ,  H04Q11/0478 ,  H04W4/06 ,  H04W8/24 ,  H04W28/0268 ,  H04W28/06 ,  H04W28/14 ,  H04W56/0005 ,  H04W60/00 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/044 ,  H04W72/0453 ,  H04W72/048 ,  H04W72/10 ,  H04W74/06

摘要： An adaptive time division duplexing (ATDD) method and apparatus for duplexing transmissions on a communication link in wireless communication systems. Communication link efficient is enhanced by dynamically adapting to the uplink and downlink bandwidth requirements of the communication channels. Time slots are flexibly and dynamically allocated for uplink or downlink transmissions depending upon the bandwidth needs of a channel. Communication link bandwidth requirements are continuously monitored using sets of predetermined bandwidth requirement parameters. Communication channels are configured to have either symmetric or asymmetric uplink/downlink bandwidths depending upon the needs of the channel. Channel bandwidth asymmetry can be configured alternatively in favor of the uplink transmissions (i.e., more time slots are allocated for uplink transmissions than for downlink transmissions) or in favor of the downlink transmissions (i.e., more time slots are allocated for downlink transmissions than for uplink transmissions). A myriad of time slot allocation schemes are possible. One simplified time slot allocation scheme uses a “frame-based” approach. A preferred channel bandwidth analysis technique is disclosed which monitors and updates bandwidth requirement parameters associated with communication sessions, base stations and cell cluster controllers. In accordance with this technique, a communication session is preferably assigned both an “initial” and an “actual” set of bandwidth parameters.

摘要翻译： 一种用于在无线通信系统中的通信链路上双工传输的自适应时分双工（ATDD）方法和装置。 通过动态地适应通信信道的上行链路和下行链路带宽需求来增强通信链路的有效性。 根据信道的带宽需求，时隙被灵活地动态分配用于上行链路或下行链路传输。 使用预定带宽需求参数的集合来连续监视通信链路带宽要求。 根据信道的需要，通信信道被配置为具有对称或不对称的上行链路/下行链路带宽。 信道带宽不对称可以配置为有利于上行链路传输（即，为上行链路传输分配更多的时隙而不是针对下行链路传输）或有利于下行链路传输（即，为下行链路传输分配更多的时隙而不是上行链路 传输）。 无数次时隙分配方案是可能的。 一个简化的时隙分配方案使用“基于帧”的方法。 公开了一种优选的信道带宽分析技术，其监测和更新与通信会话，基站和小区集群控制器相关联的带宽需求参数。 根据该技术，通信会话优选地分配“初始”和“实际”带宽参数集合。

公开(公告)号：US20060002336A1

公开(公告)日：2006-01-05

申请号：US11170392

申请日：2005-06-29

申请人： Kenneth Stanwood ,  James Mollenauer ,  Israel Klein ,  Sheldon Gilbert

发明人： Kenneth Stanwood ,  James Mollenauer ,  Israel Klein ,  Sheldon Gilbert

IPC分类号： H04Q7/00

CPC分类号： H04W72/0413 ,  H04L5/0064 ,  H04L5/0092 ,  H04L2012/5607 ,  H04L2012/561 ,  H04Q11/0478 ,  H04W4/06 ,  H04W8/24 ,  H04W28/0268 ,  H04W28/06 ,  H04W28/14 ,  H04W56/0005 ,  H04W60/00 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/044 ,  H04W72/0453 ,  H04W72/048 ,  H04W72/10 ,  H04W74/06

摘要： A method and apparatus for requesting and allocating bandwidth in a broadband wireless communication system. The inventive method and apparatus includes a combination of techniques that allow a plurality of CPEs to communicate their bandwidth request messages to respective base stations. One technique includes a “polling” method whereby a base station polls CPEs individually or in groups and allocates bandwidth specifically for the purpose of allowing the CPEs to respond with bandwidth requests. The polling of the CPEs by the base station may be in response to a CPE setting a “poll-me bit” or, alternatively, it may be periodic. Another technique comprises “piggybacking” bandwidth requests on bandwidth already allocated to a CPE. In accordance with this technique, currently active CPEs request bandwidth using previously unused portions of uplink bandwidth that is already allocated to the CPE. The CPE is responsible for distributing the allocated uplink bandwidth in a manner that accommodates the services provided by the CPE. By using a combination of bandwidth allocation techniques, the present invention advantageously makes use of the efficiency benefits associated with each technique.

摘要翻译： 一种在宽带无线通信系统中请求和分配带宽的方法和装置。 本发明的方法和装置包括允许多个CPE将其带宽请求消息传送到各个基站的技术的组合。 一种技术包括一种“轮询”方法，由此基站单独地或分组地轮询CPE，并且专门为了允许CPE以带宽请求做出响应的目的分配带宽。 基站对CPE的轮询可以是响应于CPE设置“轮询我位”，或者可以是周期性的。 另一种技术包括对已经分配给CPE的带宽上的“捎带”带宽请求。 根据该技术，当前活动的CPE请求带宽使用已经分配给CPE的先前未使用的上行链路带宽部分。 CPE负责以适应CPE提供的服务的方式分配分配的上行链路带宽。 通过使用带宽分配技术的组合，本发明有利地利用与每种技术相关联的效率益处。

公开(公告)号：US07577100B2

公开(公告)日：2009-08-18

申请号：US10207661

申请日：2002-07-26

申请人： Stephen Pollmann ,  Kenneth Stanwood ,  David Gazelle

发明人： Stephen Pollmann ,  Kenneth Stanwood ,  David Gazelle

IPC分类号： G01R31/08 ,  H04B7/212 ,  H04J3/16

CPC分类号： H04L1/20 ,  H04L1/0003

摘要： The system and method optimizes a SNR calculation for a signal received during a downlink burst even in the absence of a node's preferred modulation. This system and method are used in communication systems that include a multi-modulation modem. An adaptation factor is selected whereby its use during portions of the downlink burst, which were not modulated using the preferred modulation, provides the SNR. The selected adaptation factor is used by an equalizer to perform channel inversion to the signal. The system and method can be used in, for example, an FDD or TDD communication system. Such communication systems can be, for example, symmetric, asymmetric, and/or adaptive in their operation.

摘要翻译： 该系统和方法优化即使在没有节点优选调制的情况下在下行链路突发期间接收的信号的SNR计算。 该系统和方法用于包括多调制调制解调器的通信系统中。 选择适应因子，由此在下行链路脉冲串的未使用优选调制调制的部分期间的使用提供SNR。 选择的适配因子由均衡器用于对信号执行信道反转。 该系统和方法可以用于例如FDD或TDD通信系统中。 这样的通信系统在其操作中可以是例如对称的，不对称的和/或适应的。

公开(公告)号：US20050281220A1

公开(公告)日：2005-12-22

申请号：US11156045

申请日：2005-06-17

申请人： Kenneth Stanwood ,  Timothy Gallagher ,  Sheldon Gilbert ,  Yair Bourlas ,  Charles Bergan ,  Sam Liu ,  Darren Smith

发明人： Kenneth Stanwood ,  Timothy Gallagher ,  Sheldon Gilbert ,  Yair Bourlas ,  Charles Bergan ,  Sam Liu ,  Darren Smith

IPC分类号： H04H20/77 ,  H04W28/20 ,  H04Q7/00

CPC分类号： H04W28/20

摘要： In a system utilizing double wide communication channels, if a particular CPE requires a sustained rate that is greater than the bandwidth of a single channel, data to and from the CPE may be split across Channels A and B. Also, when the bandwidth requirements of a particular CPE peaks at a data rate greater than the capacity of a single channel, the CPE's data may be split across the two channels. In one embodiment, a single-wide CPE may communicate with the base station without knowing that it is communicating with a base station configured to communicate using a double wide channel.

摘要翻译： 在使用双宽通信信道的系统中，如果特定的CPE需要比单个信道的带宽更长的持续速率，那么到CPE之间的数据可能会跨越信道A和B分裂。另外，当带宽要求 特定的CPE以大于单个信道的容量的数据速率峰值，CPE的数据可以跨越两个信道被分离。 在一个实施例中，单宽CPE可以与基站通信，而不知道它正在与被配置为使用双宽信道通信的基站通信。

公开(公告)号：US20060126549A1

公开(公告)日：2006-06-15

申请号：US11350464

申请日：2006-02-08

申请人： Yair Bourlas ,  Kenneth Stanwood ,  Brian Spinar ,  Sheldon Gilbert

发明人： Yair Bourlas ,  Kenneth Stanwood ,  Brian Spinar ,  Sheldon Gilbert

IPC分类号： H04B7/00

CPC分类号： H04W72/1252 ,  H04W28/22 ,  H04W72/1257 ,  H04W76/10 ,  H04W76/30

摘要： The invention relates to communication systems and to systems and methods for implementing adaptive call admission control (CAC) in such systems. Adaptive call admission control can determine what CPE to base station calls (connections) are allowed at any given time. CAC, coupled with precedence, can further determine what connections are suspended if less bandwidth is available than is currently committed. Multiple techniques are disclosed to select connections for suspension. These techniques include suspending enough connections through the affected CPE until there is enough bandwidth to meet the remaining commitment, randomly (or in a round robin fashion) choosing connection to suspend from the entire set of connection, and using precedence priority levels.

公开(公告)号：US20070133481A1

公开(公告)日：2007-06-14

申请号：US11674548

申请日：2007-02-13

申请人： Kenneth Stanwood ,  Israel Klein ,  George Lin ,  An Chen

发明人： Kenneth Stanwood ,  Israel Klein ,  George Lin ,  An Chen

IPC分类号： H04B7/212

CPC分类号： H04W72/042 ,  H04B7/15557 ,  H04B7/212 ,  H04B7/2615 ,  H04B7/2656 ,  H04B7/2681 ,  H04L1/0003 ,  H04L1/0009 ,  H04L5/16 ,  H04W56/0085 ,  H04W72/14

摘要： A system and method for mapping a combined frequency division duplexing (FDD) Time Division Multiplexing (TDM)/Time Division Multiple Access (TDMA) downlink subframe for use with half-duplex and full-duplex terminals in a communication system. Embodiments of the downlink subframe vary Forward Error Correction (FEC) types for a given modulation scheme as well as support the implementation of a smart antennae at a base station in the communication system. Embodiments of the system are also used in a TDD communication system to support the implementation of smart antennae. A scheduling algorithm allows TDM and TDMA portions of a downlink to efficiently co-exist in the same downlink subframe and simultaneously support full and half-duplex terminals. The algorithm further allows the TDM of multiple terminals in a TDMA burst to minimize the number of map entries in a downlink map. The algorithm limits the number of downlink map entries to not exceed 2n+1, where n is the number of DL PHY modes (modulation/FEC combinations) employed by the communication system.

摘要翻译： 用于映射在通信系统中与半双工和全双工终端一起使用的组合频分双工（FDD）时分复用（TDM）/时分多址（TDMA））下行链路子帧的系统和方法。 下行链路子帧的实施例针对给定的调制方案改变前向纠错（FEC）类型，并且支持在通信系统中的基站处的智能天线的实现。 该系统的实施例也用于TDD通信系统以支持智能天线的实现。 调度算法允许下行链路的TDM和TDMA部分在相同的下行链路子帧中有效共存，同时支持全双工和半双工终端。 该算法还允许TDMA突发中的多个终端的TDM使下行链路映射中的映射条目的数量最小化。 该算法将下行链路映射条目的数量限制为不超过2n + 1，其中n是通信系统采用的DL PHY模式（调制/ FEC组合）的数量。

公开(公告)号：US20070111665A1

公开(公告)日：2007-05-17

申请号：US11617557

申请日：2006-12-28

申请人： Israel Klein ,  Shelden Gilbert ,  Kenneth Stanwood ,  Jacques Behar

发明人： Israel Klein ,  Shelden Gilbert ,  Kenneth Stanwood ,  Jacques Behar

IPC分类号： H04B1/00 ,  H04B15/00

CPC分类号： H04W16/12 ,  H04W16/02 ,  H04W16/24

摘要： Base stations having potentially interfering terminal stations that are geographically located on the same or similar diagonal or Line of Sight (relative to the base station) operate on a first set of time frames (e.g., “even” time frames). Similarly, base stations having potentially interfering terminal stations that are not geographically located on the same or similar diagonals operate on a second set of time frames (e.g., “odd” time frames). By alternating in their use of the even and odd frames, the potential for co-channel interference between terminal stations is minimized. Systems and methods are disclosed which reduce co-channel and adjacent channel interference between terminal stations of different cells as well as adjacent channel interference between terminal stations of adjacent cells. The methods and systems so described can be used during the deployment or expansion of a communication system in a region.

摘要翻译： 具有地理上位于相同或相似的对角线或视线（相对于基站）的潜在干扰终端站的基站在第一组时间帧（例如“偶数”时间帧）上操作。 类似地，具有不在地理上位于相同或相似对角线上的潜在干扰终端站的基站在第二组时间帧（例如，“奇数”时间帧）上操作。 通过交替使用偶数和奇数帧，终端之间的同信道干扰的可能性被最小化。 公开了减少不同小区的终端之间的同信道和相邻信道干扰以及相邻小区的终端之间的相邻信道干扰的系统和方法。 所描述的方法和系统可以在部署或扩展区域内的通信系统时使用。

公开(公告)号：US20080107049A1

公开(公告)日：2008-05-08

申请号：US11969770

申请日：2008-01-04

申请人： Kenneth Stanwood ,  Israel Klein

发明人： Kenneth Stanwood ,  Israel Klein

IPC分类号： H04J3/00

CPC分类号： H04B7/2621 ,  H04B7/2656 ,  H04B7/2687

摘要： A method and system for using half-duplex base stations and half-duplex nodes in a Frequency Division Duplexing region to provide wireless connectivity between the half-duplex base stations and customers in multiple sectors of a cell. The method and system can use two physical channels to form two logical channels. Each logical channel shares both physical channels during alternating frames of time. The half-duplex nodes can include a millimeter-wave band frequency synthesizer configured to transmit and receive on different channels to and from the half-duplex base station. Re-use patterns of the physical channels are used for deployment of half-duplex base stations and half-duplex nodes in the FDD region to minimize co-channel interference and interference due to uncorrelated rain fade. Additional methods and systems utilize full-duplex base stations and smart antenna to communicate with the half-duplex nodes.

摘要翻译： 一种在频分双工区域中使用半双工基站和半双工节点的方法和系统，用于提供半双工基站与小区多个扇区中的客户之间的无线连接。 该方法和系统可以使用两个物理信道来形成两个逻辑信道。 每个逻辑信道在交替的时间帧期间共享物理信道。 半双工节点可以包括毫米波频率频率合成器，其被配置为在与半双工基站的不同信道上进行发送和接收。 物理信道的重用模式用于在FDD区域中部署半双工基站和半双工节点，以使由于不相关的降雨衰落引起的同信道干扰和干扰最小化。 其他方法和系统利用全双工基站和智能天线与半双工节点进行通信。

公开(公告)号：US20070165562A1

公开(公告)日：2007-07-19

申请号：US11693546

申请日：2007-03-29

申请人： Yair Bourlas ,  Kenneth Stanwood ,  Brian Spinar ,  Sheldon Gilbert

发明人： Yair Bourlas ,  Kenneth Stanwood ,  Brian Spinar ,  Sheldon Gilbert

IPC分类号： H04Q7/00

CPC分类号： H04W72/1252 ,  H04W28/22 ,  H04W72/1257 ,  H04W76/10 ,  H04W76/30

摘要： The invention relates to communication systems and to systems and methods for implementing adaptive call admission control (CAC) in such systems. Adaptive call admission control can determine what CPE to base station calls (connections) are allowed at any given time. CAC, coupled with precedence, can further determine what connections are suspended if less bandwidth is available than is currently committed. Multiple techniques are disclosed to select connections for suspension. These techniques include suspending enough connections through the affected CPE until there is enough bandwidth to meet the remaining commitment, randomly (or in a round robin fashion) choosing connection to suspend from the entire set of connection, and using precedence priority levels.

摘要翻译： 本发明涉及通信系统以及用于在这样的系统中实现自适应呼叫许可控制（CAC）的系统和方法。 自适应呼叫准入控制可以确定在任何给定时间允许基站呼叫（连接）的CPE。 CAC，加上优先级，可以进一步确定如果可用带宽比当前提交的带宽少，连接被挂起。 公开了多种技术来选择用于暂停的连接。 这些技术包括通过受影响的CPE暂停足够的连接，直到有足够的带宽来满足剩余的承诺，从而选择连接从整个连接集中挂起并使用优先级优先级的随机（或循环方式）。