公开(公告)号：AU9089501A

公开(公告)日：2002-03-26

申请号：AU9089501

申请日：2001-09-14

Applicant: ATHEROS COMM INC

Inventor： KUSKIN JEFFREY SCOTT ,  NG TAO-FEI SAMUEL ,  DHAMDHERE DEEPAK PRABHAKAR ,  CAIN FIONA J ,  DAVIDSON ANDREW M

IPC: H04L12/28 ,  H04L12/56 ,  H04L29/06 ,  H04L29/12

Abstract: A key-caching system retrieves actively used keys from a relatively fast cache memory for fast processing of wireless communications. Additional keys are stored in relatively slow system memory that has high storage capacity. As keys become needed for active use, the keys are retrieved from the system memory and stored in the cache memory. By using active memory for keys actively being used, system performance is enhanced. By using system memory for keys not being used, a greater number of keys are available for transfer to the cache and subsequent active use.

公开(公告)号：AU8908401A

公开(公告)日：2002-03-26

申请号：AU8908401

申请日：2001-09-14

Applicant: ATHEROS COMM INC

Inventor： KUSKIN JEFFREY SCOTT ,  NG TAO-FEI SAMUEL ,  DAVIDSON ANDREW M

IPC: H04L29/06 ,  H04L29/00

Abstract: A Hardware MAC (Media Access Control) unit implements time-critical functions according the 802.11 standard for telecommunications, thereby enhancing system performance. The MAC layer includes three sub-layers: MLME (MAC Sublayer Management Entity), which connects the MAC unit with the host CPU, FTM (Frame Transition Manager), which connects the MAC unit with the network, and FLPM (Frame Level Protocol Manager), which internally connects the MLME sub-layer with the FTM sub-layer. In particular, the FLPM manager includes time-critical and non-time-critical functions that are customarily implemented in software on the MAC by a MAC CPU (Central Processing Unit). The hardware MAC implements time-critical FLPM functions in hardware on the MAC and implements non-time-critical FLPM functions in software on the host CPU so that requirements for processing software on the MAC preferably may be altogether eliminated or alternatively may be substantially reduced.

公开(公告)号：CA2422476A1

公开(公告)日：2002-03-21

申请号：CA2422476

申请日：2001-09-14

Applicant: ATHEROS COMM INC

Inventor： DHAMDHERE DEEPAK PRABHAKAR ,  DAVIDSON ANDREW M ,  NG TAO-FEI SAMUEL ,  KUSKIN JEFFREY SCOTT ,  CAIN FIONA J

IPC: H04L12/28 ,  H04L12/56 ,  H04L29/06 ,  H04L29/12

Abstract: A key-caching system retrieves actively used keys from a relatively fast cac he memory for fast processing of wireless communications. Additional keys are stored in relatively slow system memory that has high storage capacity. As keys become needed for active use, the keys are retrieve from the system memory and stored in the cache memory. By using active memory for keys actively being used, system performance is enhanced. By using system memory for keys not being used, a greater number of keys are available for transfer to the cache and subsequent active use.

公开(公告)号：AU2002340525A1

公开(公告)日：2002-11-18

申请号：AU2002340525

申请日：2002-04-05

Applicant: ATHEROS COMM INC

Inventor： MCFARLAND WILLIAM ,  THON LARS E ,  HUSTED PAUL J ,  NG TAO-FEI SAMUEL

IPC: H03G5/16 ,  H04B1/10 ,  H04B17/00 ,  H04B7/00

公开(公告)号：WO02091104A3

公开(公告)日：2003-02-06

申请号：PCT/US0210868

申请日：2002-04-05

Applicant: ATHEROS COMM INC

Inventor： HUSTED PAUL J ,  THON LARS E ,  MCFARLAND WILLIAM ,  NG TAO-FEI SAMUEL

IPC: H03G5/16 ,  H04B1/10 ,  H04B17/00 ,  H04B7/00

CPC classification number: H04B1/109 ,  H03G5/165 ,  H04B1/1036

Abstract: An embodiment of the present invention provides an automatic gain control system for a wireless receiver that quickly differentiates desired in-band signals from high power out-of-band signals that overlap into the target band. The system measures power before and after passing a received signal through a pair of finite impulse response filteres (205-IP), (210-IP), (205-Q), (210-Q) and (220) that largely restrict the signal's power to that which is in-band. By comprising the in-band energy of the received signal after filtering to the total signal energy prior to filtering (215), it is possible to determine whether a new in-band signal has arrived. The presence of this new in-band signal is then verified by a multi-threshold comparison of the normalized self-correlation (225) to verify the presence of a new, desired in-band signal.

Abstract translation: 本发明的实施例提供了一种用于无线接收机的自动增益控制系统，其快速地将期望的带内信号与重叠到目标频带中的高功率带外信号区分开来。 系统通过一对有限脉冲响应码（205-IP），（210-IP），（205-Q），（210-Q）和（220）在接收到的信号通过之前和之后测量功率， 信号的功率是带内的。 通过在滤波之前将接收信号的带内能量过滤到总信号能量（215）之后，可以确定新的带内信号是否已经到达。 然后通过归一化自相关（225）的多阈值比较来验证这种新的带内信号的存在，以验证是否存在新的期望的带内信号。

公开(公告)号：EP1379958A4

公开(公告)日：2009-06-10

申请号：EP02761999

申请日：2002-04-04

Applicant: ATHEROS COMM INC

Inventor： KUSKIN JEFFREY SCOTT ,  NG TAO-FEI SAMUEL ,  DAVIDSON ANDREW M

IPC: G06F13/30 ,  H04L12/56 ,  G06F13/14 ,  G06F13/26

CPC classification number: H04L47/6215 ,  G06F13/30 ,  H04L47/50 ,  H04L47/564 ,  H04L49/90 ,  H04L49/901 ,  H04L49/9047

Abstract: A method of queue management includes: adding entries having a first priority to a first software queue (34); adding entries having a second priority to a second software queue (36); reading entries from the first software queue to a physical queue; at a threshold time, flushing entries from the physical queue (42); at a threshold time, flushing entries from the physical queue, after the act of flushing the physical queue, reading entries from the second software queue to the physical queue until a termination criterion is satisfied; after the termination criterion is satisfied, reading entries from the first software queue to the physical queue; and transmitting entries from the physical queue to a network (44).

Abstract translation: 队列管理的方法包括：将具有第一优先级的条目添加到第一软件队列; 将具有第二优先级的条目添加到第二软件队列; 将条目从第一个软件队列读取到物理队列; 在阈值时间，从物理队列刷新条目; 在刷新物理队列的行为之后，从第二个软件队列读取条目到物理队列，直到满足终止标准; 在满足终止标准之后，从第一个软件队列读取条目到物理队列; 并将条目从物理队列发送到网络。

公开(公告)号：WO0223853A9

公开(公告)日：2003-04-03

申请号：PCT/US0128705

申请日：2001-09-14

Applicant: ATHEROS COMM INC

Inventor： KUSKIN JEFFREY SCOTT ,  NG TAO-FEI SAMUEL ,  DAVIDSON ANDREW M

IPC: H04L29/06 ,  H04L12/28

CPC classification number: H04L63/162

Abstract: A Hardware MAC (Media Access Control) unit implements time-critical functions according the 802.11 standard for telecommunications, thereby enhancing system performance. The MAC layer includes three sub-layers: MLME (MAC Sublayer Management Entity), which connects the MAC unit with the host CPU, FTM (Frame Transition Manager), which connects the MAC unit with the network, and FLPM (Frame Level Protocol Manager), which internally connects the MLME sub-layer with the FTM sub-layer. In particular, the FLPM manager includes time-critical and non-time-critical functions that are customarily implemented in software on the MAC by a MAC CPU (Central Processing Unit). The hardware MAC implements time-critical FLPM functions in hardware on the MAC and implements non-time-critical FLPM functions in software on the host CPU so that requirements for processing software on the MAC preferably may be altogether eliminated or alternatively may be substantially reduced.

Abstract translation: 硬件MAC（媒体访问控制）单元根据802.11电信标准执行时间关键功能，从而提高系统性能。 MAC层包括三个子层：将MAC单元与主机CPU连接的MLME（MAC子层管理实体），将MAC单元与网络连接的FTM（帧过渡管理器）和FLPM（帧级协议管理器 ），其内部连接MLME子层与FTM子层。 特别地，FLPM管理器包括通过MAC CPU（中央处理单元）在MAC上的软件中通常实现的时间关键和非时间关键功能。 硬件MAC在MAC上的硬件中实现时间关键的FLPM功能，并且在主机CPU上的软件中实现非时间关键的FLPM功能，所以优选地，可以完全消除对MAC上的处理软件的要求，或者可以大大减少。

公开(公告)号：WO0223867A3

公开(公告)日：2003-01-16

申请号：PCT/US0128696

申请日：2001-09-14

Applicant: ATHEROS COMM INC

Inventor： KUSKIN JEFFREY SCOTT ,  NG TAO-FEI SAMUEL ,  DHAMDHERE DEEPAK PRABHAKAR ,  CAIN FIONA J ,  DAVIDSON ANDREW M

IPC: H04L12/28 ,  H04L12/56 ,  H04L29/06 ,  H04L29/12

CPC classification number: H04L63/0428 ,  H04L1/1829 ,  H04L29/06 ,  H04L29/12783 ,  H04L61/35 ,  H04L63/062 ,  H04L63/164 ,  H04L69/12 ,  H04W8/26 ,  H04W12/02 ,  H04W12/04 ,  H04W84/12

Abstract: A key-caching system retrieves actively used keys from a relatively fast cache memory for fast processing of wireless communications. Additional keys are stored in relatively slow system memory that has high storage capacity. As keys become needed for active use, the keys are retrieve from the system memory and stored in the cache memory. By using active memory for keys actively being used, system performance is enhanced. By using system memory for keys not being used, a greater number of keys are available for transfer to the cache and subsequent active use.

Abstract translation: 密钥缓存系统从相对较快的高速缓冲存储器中检索主动使用的密钥，用于无线通信的快速处理。 附加键存储在具有高存储容量的相对较慢的系统存储器中。 随着密钥变得需要主动使用，密钥从系统存储器中检索并存储在高速缓冲存储器中。 通过使用主动使用的主动内存，可以提高系统性能。 通过对未使用的密钥使用系统内存，可以使用更多数量的密钥来传输到缓存和随后的主动使用。

公开(公告)号：WO2004075443A3

公开(公告)日：2005-10-06

申请号：PCT/US2004003462

申请日：2004-02-06

Applicant: ATHEROS COMM INC ,  HUSTED PAUL J ,  NG TAO-FEI SAMUEL

Inventor： HUSTED PAUL J ,  NG TAO-FEI SAMUEL

IPC: H04L7/02 ,  H04L25/05 ,  H04L27/00 ,  H03M7/00

CPC classification number: H04L7/0029 ,  H04L25/05 ,  H04L27/0008

Abstract: In a wireless local area network (WLAN), receiving or transmitting signals having multiple modulation schemes can require the use of multiple clock rates. Providing these multiple clock rates significantly increases silicon area and power consumption, both of which are highly undesirably in a wireless device. A sequencing interpolator can advantageously reduce the number of clock rates by receiving signals at a first rate and outputting signals at a second rate. The sequencing interpolator can include a multiplexer network that selectively determines which coefficients are applied to certain signals. Coefficients are chosen to ensure that an error in a frequency domain is within a given tolerance. The multiplexer network can be controlled by a counter value. At a predetermined count, the interpolated output signal is discarded and the counter is reset.

Abstract translation: 在无线局域网（WLAN）中，具有多个调制方案的接收或发送信号可能需要使用多个时钟速率。 提供这些多个时钟速率显着增加了硅面积和功耗，这两者在无线设备中都是非常不希望的。 排序插值器可以有利地通过以第一速率接收信号并以第二速率输出信号来减少时钟速率的数量。 排序插值器可以包括多路复用器网络，其选择性地确定哪些系数被应用于某些信号。 选择系数以确保频域中的误差在给定的容限内。 复用器网络可以通过计数器值来控制。 在预定的计数时，内插的输出信号被丢弃并且计数器被复位。

公开(公告)号：WO0223853A2

公开(公告)日：2002-03-21

申请号：PCT/US0128705

申请日：2001-09-14

Applicant: ATHEROS COMM INC

Inventor： KUSKIN JEFFREY SCOTT ,  NG TAO-FEI SAMUEL ,  DAVIDSON ANDREW M

IPC: H04L29/06 ,  H04L29/00

CPC classification number: H04L63/162

Abstract: A Hardware MAC (Media Access Control) unit implements time-critical functions according the 802.11 standard for telecommunications, thereby enhancing system performance. The MAC layer includes three sub-layers: MLME (MAC Sublayer Management Entity), which connects the MAC unit with the host CPU, FTM (Frame Transition Manager), which connects the MAC unit with the network, and FLPM (Frame Level Protocol Manager), which internally connects the MLME sub-layer with the FTM sub-layer. In particular, the FLPM manager includes time-critical and non-time-critical functions that are customarily implemented in software on the MAC by a MAC CPU (Central Processing Unit). The hardware MAC implements time-critical FLPM functions in hardware on the MAC and implements non-time-critical FLPM functions in software on the host CPU so that requirements for processing software on the MAC preferably may be altogether eliminated or alternatively may be substantially reduced.

Abstract translation: 硬件MAC（媒体访问控制）单元根据802.11电信标准执行时间关键功能，从而提高系统性能。 MAC层包括三个子层：将MAC单元与主机CPU连接的MLME（MAC子层管理实体），将MAC单元与网络连接的FTM（帧过渡管理器）和FLPM（帧级协议管理器 ），其内部连接MLME子层与FTM子层。 特别地，FLPM管理器包括通过MAC CPU（中央处理单元）在MAC上的软件中通常实现的时间关键和非时间关键功能。 硬件MAC在MAC上的硬件中实现时间关键的FLPM功能，并且在主机CPU上的软件中实现非时间关键的FLPM功能，因此优选地可以完全消除对MAC上处理软件的要求，或者可以大大减少。