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    Asymmetric adaptive modulation in a wireless communication system
    2.
    发明授权
    Asymmetric adaptive modulation in a wireless communication system 有权
    无线通信系统中的非对称自适应调制

    公开(公告)号：US06549759B2

    公开(公告)日：2003-04-15

    申请号：US09938216

    申请日：2001-08-24

    申请人： Eli Arviv ,  Brian Spinar ,  Kenneth L. Stanwood ,  David Gazelle ,  Ofer Zimmerman ,  Penny Efraim

    发明人： Eli Arviv ,  Brian Spinar ,  Kenneth L. Stanwood ,  David Gazelle ,  Ofer Zimmerman ,  Penny Efraim

    IPC分类号： H04B100

    CPC分类号： H04L1/20 ,  H04L2001/0093

    摘要： On embodiment of the system and method provides asymmetric adaptive modulation which allows uplink and downlink subframes of data to be transmitted between a base station and a CPE with different modulation schemes, thus increasing the efficiency of downlink transmissions while maintaining the stability of uplink transmissions. In systems with multiple CPEs, each CPE and base station pair can independently select their uplink and downlink modulation techniques. The system and method are also adaptive in that they adjust the modulation schemes based on, for example, signal to noise ratio measurements or bit error rate measurements.

    摘要翻译： 在系统和方法的实施例中提供了非对称自适应调制，其允许在具有不同调制方案的基站和CPE之间传输数据的上行链路和下行链路子帧，从而在保持上行链路传输的稳定性的同时增加下行链路传输的效率。 在具有多个CPE的系统中，每个CPE和基站对可以独立地选择它们的上行链路和下行链路调制技术。 该系统和方法也是自适应的，因为它们基于例如信噪比测量或误码率测量来调整调制方案。

    METHOD AND APPARATUS FOR BANDWIDTH REQUEST/GRANT PROTOCOLS IN A WIRELESS COMMUNICATION SYSTEM
    3.
    发明申请
    METHOD AND APPARATUS FOR BANDWIDTH REQUEST/GRANT PROTOCOLS IN A WIRELESS COMMUNICATION SYSTEM 有权
    无线通信系统中带宽请求/授权协议的方法和装置

    公开(公告)号：US20120243480A1

    公开(公告)日：2012-09-27

    申请号：US13487032

    申请日：2012-06-01

    申请人： Ofer Zimmerman ,  Kenneth L. Stanwood ,  Brian Spinar ,  Yair Bourlas ,  Amir Serok

    发明人： Ofer Zimmerman ,  Kenneth L. Stanwood ,  Brian Spinar ,  Yair Bourlas ,  Amir Serok

    IPC分类号： H04W16/02

    CPC分类号： H04W16/02 ,  H04L2012/5607 ,  H04L2012/561 ,  H04Q11/0478 ,  H04W28/14 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/0486 ,  H04W72/08 ,  H04W88/08

    摘要： A method and apparatus for allocating bandwidth in a broadband wireless communication system is disclosed. One embodiment uses a self-correcting bandwidth request/grant protocol. The self-correcting bandwidth request/grant protocol utilizes a combination of incremental and aggregate bandwidth requests. CPEs primarily transmit incremental bandwidth requests to their associated base stations, followed by periodic transmissions of aggregate bandwidth requests. The use of periodic aggregate bandwidth requests (that express the current state of their respective connection queues) allows the bandwidth allocation method and apparatus to be “self-correcting”. Another embodiment utilizes an abridged bandwidth request/grant protocol to allocate bandwidth. The abridged bandwidth request/grant protocol system utilizes padding packets to request a reduction in bandwidth allocation to a CPE. A base station modem alerts a base station CPU when the BS modem receives a padding packet from a CPE. After alerting the BS CPU the method can reduce the associated CPE's bandwidth allocation.

    摘要翻译： 公开了一种用于在宽带无线通信系统中分配带宽的方法和装置。 一个实施例使用自校正带宽请求/授权协议。 自校正带宽请求/授权协议使用增量和聚合带宽请求的组合。 CPE主要向其相关联的基站发送增量带宽请求，随后是聚合带宽请求的周期性传输。 使用周期性聚合带宽请求（表示其相应连接队列的当前状态）允许带宽分配方法和装置“自校正”。 另一个实施例利用了一个节省带宽的请求/授权协议来分配带宽。 精简带宽请求/授权协议系统利用填充分组来请求减少对CPE的带宽分配。 当BS调制解调器从CPE接收填充分组时，基站调制解调器提醒基站CPU。 在提醒BS CPU之后，该方法可以减少相关CPE的带宽分配。

    Method and apparatus for a self-correcting bandwidth request/grant protocol in a wireless communication system
    4.
    发明授权
    Method and apparatus for a self-correcting bandwidth request/grant protocol in a wireless communication system 有权
    在无线通信系统中用于自校正带宽请求/授权协议的方法和装置

    公开(公告)号：US06785252B1

    公开(公告)日：2004-08-31

    申请号：US09613434

    申请日：2000-07-11

    申请人： Ofer Zimmerman ,  Kenneth L. Stanwood ,  Brian Spinar ,  Yair Bourlas ,  Amir Serok

    发明人： Ofer Zimmerman ,  Kenneth L. Stanwood ,  Brian Spinar ,  Yair Bourlas ,  Amir Serok

    IPC分类号： H04J316

    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 a self-correcting bandwidth request/grant protocol in a broadband wireless communication system is disclosed. The self-correcting bandwidth request/grant protocol utilizes a combination of incremental and aggregate bandwidth requests. In accordance with the present inventive protocol, CPEs primarily transmit incremental bandwidth requests to their associated base stations, followed by periodic transmissions of aggregate bandwidth requests. The use of incremental bandwidth requests reduces risks that a base station erroneously issues duplicate bandwidth allocations to the same CPE for the same connection. Race conditions that may have occurred using only aggregate bandwidth requests are eliminated by requiring the CPEs to request bandwidth in an incremental manner. However, use of periodic aggregate bandwidth requests (that express the current state of their respective connection queues) allows the present bandwidth allocation method and apparatus to be “self-correcting”. The present method is self-correcting because errors that may have been introduced due to lost incremental bandwidth requests are corrected by the base stations when the aggregate bandwidth requests are received and processed. Upon receipt of the aggregate bandwidth requests, the base stations reset their records to correctly reflect the current bandwidth requirements of their associated CPEs. Periodic use of aggregate bandwidth requests provides a self-correcting bandwidth allocation protocol yet without the bandwidth overhead (e.g., bandwidth required to transmit acknowledgements) typically associated with the prior art protocols (such as the guaranteed delivery protocols).

    摘要翻译： 公开了一种用于宽带无线通信系统中的自校正带宽请求/授权协议的方法和装置。 自校正带宽请求/授权协议使用增量和聚合带宽请求的组合。 根据本发明的协议，CPE主要向其相关联的基站发送增量带宽请求，随后是聚合带宽请求的周期性传输。 使用增量带宽请求减少了基站错误地向相同连接的相同CPE发布重复带宽分配的风险。 通过要求CPE以递增方式请求带宽，消除了可能仅使用聚合带宽请求发生的种族条件。 然而，使用周期性聚合带宽请求（表示其相应连接队列的当前状态）允许当前带宽分配方法和装置“自校正”。 本方法是自校正的，因为当接收和处理聚合带宽请求时，基站由于丢失的增量带宽请求而引入的错误被校正。 收到总带宽请求后，基站重新设置其记录，以正确反映其相关CPE的当前带宽需求。 聚合带宽请求的定期使用提供了自校正带宽分配协议，而没有通常与现有技术协议（例如保证传送协议）相关联的带宽开销（例如，传送确认所需的带宽）。

    Method and system for packing management messages in a communication system
    5.
    发明授权
    Method and system for packing management messages in a communication system 有权

    公开(公告)号：US07583623B2

    公开(公告)日：2009-09-01

    申请号：US09798784

    申请日：2001-03-02

    申请人： Ofer Zimmerman ,  Brian Spinar ,  Kenneth L. Stanwood

    发明人： Ofer Zimmerman ,  Brian Spinar ,  Kenneth L. Stanwood

    IPC分类号： H04B7/00

    CPC分类号： H04L41/00

    摘要： A method and apparatus for packing management messages in a broadband wireless communication system. Management messages are sent across a link in packets addressed to a particular connection, where the address identifies messages which may be specially treated. Such special treatment may include recognition of an overall message conveyed in such packets as containing one or more implicit messages embedded within the overall message. Two methods are disclosed to efficiently convey such management messages. First, each packet of information sent across the link may include a message type identifier, in which case it need not be repeated in the payload of the packet, and a number of such messages may be sent within a packet. Second, a packet of information may contain mixed management messages, in which case the byte with the message type identifier should be included with each such message. In this case, an overall message may be constructed from individual management messages simply concatenated together. Using either method, the management messages are packed into packets so that messages in a first packet may be parsed and acted upon without a need for any subsequent packets which may be necessary to convey an entire message. This is accomplished by taking any message which will not fit in a first packet may be made to be ignored, such as by being replaced with a padding pattern. In this way, any subsequent packet will have management messages which begin at the start of the effective data payload. Padding may also be added before or after an end of message or trailer information which defines the end of an overall message.

    Method and system for packing management messages in a communication system
    9.
    发明授权
    Method and system for packing management messages in a communication system 有权

    公开(公告)号：US07567532B2

    公开(公告)日：2009-07-28

    申请号：US11512667

    申请日：2006-08-29

    申请人： Ofer Zimmerman ,  Brian Spinar ,  Kenneth L. Stanwood

    发明人： Ofer Zimmerman ,  Brian Spinar ,  Kenneth L. Stanwood

    IPC分类号： H04W4/00

    CPC分类号： H04L41/00

    摘要： A method and apparatus for packing management messages in a broadband wireless communication system. Management messages are sent across a link in packets addressed to a particular connection, where the address identifies messages which may be specially treated. Such special treatment may include recognition of an overall message conveyed in such packets as containing one or more implicit messages embedded within the overall message. Two methods are disclosed to efficiently convey such management messages. First, each packet of information sent across the link may include a message type identifier, in which case it need not be repeated in the payload of the packet, and a number of such messages may be sent within a packet. Second, a packet of information may contain mixed management messages, in which case the byte with the message type identifier should be included with each such message. In this case, an overall message may be constructed from individual management messages simply concatenated together. Using either method, the management messages are packed into packets so that messages in a first packet may be parsed and acted upon without a need for any subsequent packets which may be necessary to convey an entire message. This is accomplished by taking any message which will not fit in a first packet may be made to be ignored, such as by being replaced with a padding pattern. In this way, any subsequent packet will have management messages which begin at the start of the effective data payload. Padding may also be added before or after an end of message or trailer information which defines the end of an overall message.

    Method and apparatus for a self-correcting bandwidth request/grant protocol in a wireless communication system
    10.
    发明授权
    Method and apparatus for a self-correcting bandwidth request/grant protocol in a wireless communication system 有权
    在无线通信系统中用于自校正带宽请求/授权协议的方法和装置

    公开(公告)号：US07548534B2

    公开(公告)日：2009-06-16

    申请号：US10848470

    申请日：2004-05-17

    申请人： Ofer Zimmerman ,  Kenneth L. Stanwood ,  Brian Spinar ,  Yair Bourlas ,  Amir Serok

    发明人： Ofer Zimmerman ,  Kenneth L. Stanwood ,  Brian Spinar ,  Yair Bourlas ,  Amir Serok

    IPC分类号： H04J3/16 ,  H04J3/24

    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 a self-correcting bandwidth request/grant protocol in a broadband wireless communication system is disclosed. The self-correcting bandwidth request/grant protocol utilizes a combination of incremental and aggregate bandwidth requests. In accordance with the present inventive protocol, CPEs primarily transmit incremental bandwidth requests to their associated base stations, followed by periodic transmissions of aggregate bandwidth requests. The use of incremental bandwidth requests reduces risks that a base station erroneously issues duplicate bandwidth allocations to the same CPE for the same connection. Race conditions that may have occurred using only aggregate bandwidth requests are eliminated by requiring the CPEs to request bandwidth in an incremental manner. However, use of periodic aggregate bandwidth requests (that express the current state of their respective connection queues) allows the present bandwidth allocation method and apparatus to be “self-correcting.” The present method is self-correcting because errors that may have been introduced due to lost incremental bandwidth requests are corrected by the base stations when the aggregate bandwidth requests are received and processed. Upon receipt of the aggregate bandwidth requests, the base stations reset their records to correctly reflect the current bandwidth requirements of their associated CPEs. Periodic use of aggregate bandwidth requests provides a self-correcting bandwidth allocation protocol yet without the bandwidth overhead (e.g., bandwidth required to transmit acknowledgements) typically associated with the prior art protocols (such as the guaranteed delivery protocols).

    摘要翻译： 公开了一种用于宽带无线通信系统中的自校正带宽请求/授权协议的方法和装置。 自校正带宽请求/授权协议使用增量和聚合带宽请求的组合。 根据本发明的协议，CPE主要向其相关联的基站发送增量带宽请求，随后是聚合带宽请求的周期性传输。 使用增量带宽请求减少了基站错误地向相同连接的相同CPE发布重复带宽分配的风险。 通过要求CPE以递增方式请求带宽，消除了可能仅使用聚合带宽请求发生的种族条件。 然而，使用周期性聚合带宽请求（表示其相应连接队列的当前状态）允许当前带宽分配方法和装置“自校正”。 本方法是自校正的，因为当接收和处理聚合带宽请求时，基站由于丢失的增量带宽请求而引入的错误被校正。 收到总带宽请求后，基站重新设置其记录，以正确反映其相关CPE的当前带宽需求。 聚合带宽请求的定期使用提供了自校正带宽分配协议，而没有通常与现有技术协议（例如保证传送协议）相关联的带宽开销（例如，传送确认所需的带宽）。