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1. 发明申请

WO2004104530A3 INTERFERENCE AND NOISE ESTIMATION IN AN OFDM SYSTEM 审中-公开
标题翻译： OFDM系统中的干扰和噪声估计
公开(公告)号：WO2004104530A3
公开(公告)日：2006-02-09
申请号：PCT/US2004015204
申请日：2004-05-14
申请人： QUALCOMM INC , SUTIVONG ARAK , NAGUIB AYMAN FAWZY , AGRAWAL AVNEESH
发明人： SUTIVONG ARAK , NAGUIB AYMAN FAWZY , AGRAWAL AVNEESH
IPC分类号： G01H20060101 , H04J11/00 , H04L1/20 , H04L27/26
CPC分类号： H04L1/20 , H04L27/2647
摘要： Noise and interference can be independently measured in a multiple user Orthogonal Frequency Division Multiplexing (OFDM) system (200). Co-channel interference is measured in a frequency hopping, multiple user, OFDM system by tracking the sub-carriers assigned to all users in a particular service area or cell (202). The composite noise plus interference can be determined by measuring the amount of received power in a sub-carrier whenever it is not assigned to any user in the cell. A value is stored for each sub-carrier in the system and the value of noise plus interference can be a weighted average of the present value with previously stored values. The noise component can be independently determined in a synchronous system. In the synchronous system, all users in a system may periodically be prohibited from broadcasting over a sub-carrier and the received power in the sub-carrier measured during the period having no broadcasts.
摘要翻译：噪声和干扰可以在多用户正交频分复用（OFDM）系统（200）中独立测量。通过跟踪分配给特定服务区域或单元（202）中的所有用户的子载波，在跳频多用户OFDM系统中测量同信道干扰。复合噪声加干扰可以通过在子载波中没有分配给小区中的任何用户时测量子载波中的接收功率的量来确定。为系统中的每个子载波存储一个值，并且噪声加干扰的值可以是具有先前存储的值的当前值的加权平均值。噪声分量可以在同步系统中独立确定。在同步系统中，系统中的所有用户可以周期地禁止通过子载波进行广播，并且在没有广播的时段期间测量的子载波中的接收功率。

2. 发明申请

WO2004105294A3 POWER CONTROL AND SCHEDULING IN AN OFDM SYSTEM 审中-公开
标题翻译： OFDM系统中的功率控制和调度
公开(公告)号：WO2004105294A3
公开(公告)日：2005-04-28
申请号：PCT/US2004015172
申请日：2004-05-14
申请人： QUALCOMM INC , NAGUIB AYMAN FAWZY , AGRAWAL AVNEESH , SUTIVONG ARAK
发明人： NAGUIB AYMAN FAWZY , AGRAWAL AVNEESH , SUTIVONG ARAK
IPC分类号： G01R31/08 , H04B7/005 , H04L20060101 , H04L27/26
CPC分类号： H04W52/24 , H04L5/0007 , H04L5/0044 , H04L5/0058 , H04L5/006
摘要： A system and method for power control and scheduling of sub-carriers in an OFDM communication system. The receiver dynamic range can be minimized by a power control loop that attempts to maintain received power over a noise floor in a predetermined range. If the received power relative to a noise floor in allocated sub-carriers exceeds the predetermined range and the total received power is at the minimum, the scheduling system allocates an additional sub-carrier to the communication link. Additionally, if the received power relative to the noise floor is less than the predetermined range minimum, and the total received power is at a maximum, the scheduling system de-allocates a sub-carrier from the communication link. The scheduling system may also adjust an encoding rate to maintain a relatively constant symbol rate in each sub-carrier.
摘要翻译：一种用于OFDM通信系统中的子载波的功率控制和调度的系统和方法。接收器动态范围可以通过功率控制回路最小化，该功率控制环路试图在预定范围内将接收功率保持在噪声基底上。如果分配的子载波中相对于本底噪声的接收功率超过预定范围并且总接收功率处于最小值，则调度系统向通信链路分配附加子载波。此外，如果相对于本底噪声的接收功率小于预定范围最小值，并且总接收功率处于最大值，则调度系统从通信链路去分配子载波。调度系统还可以调整编码速率以在每个子载波中维持相对恒定的符号率。

3. 发明申请

WO2007051190A8 ALLOCATION OF PILOT PATTERN ADAPTED TO CHANNEL CHARACTERISTICS FOR AN OFDM SYSTEM 审中-公开
标题翻译：适用于OFDM系统的通道特性的引导模式的分配
公开(公告)号：WO2007051190A8
公开(公告)日：2009-05-22
申请号：PCT/US2006060336
申请日：2006-10-27
申请人： QUALCOMM INC , GOROKHOV ALEXEI , NAGUIB AYMAN FAWZY , SUTIVONG ARAK , GORE DHANANJAY ASHOK , JI TINGFANG
发明人： GOROKHOV ALEXEI , NAGUIB AYMAN FAWZY , SUTIVONG ARAK , GORE DHANANJAY ASHOK , JI TINGFANG
IPC分类号： H04L27/26 , H04L1/00
CPC分类号： H04L27/2613 , H04B1/715 , H04B7/0413 , H04B7/12 , H04B2001/7154 , H04L1/0026 , H04L5/0023 , H04L5/0051 , H04L5/0058 , H04L25/0204 , H04L25/0216 , H04L25/0222 , H04L25/0226 , H04L25/0228 , H04L25/03866 , H04L27/261 , H04W16/28 , H04W72/1205
摘要： A plurality of transmission patterns for pilot systems transmitted from a mobile station or base station are provided. Depending upon the frequency selectivity and/or the time selectivity of the channel between the mobile station and the base station, an appropriate pattern is selected. The selected pattern allows for improved receipt of the pilot symbols. In addition, scrambling codes can be applied to the patterns for reducing interference and/or biasing the different mobile stations over the same frequencies and in the same slots.
摘要翻译：提供了从移动台或基站发送的用于导频系统的多个传输模式。根据移动站和基站之间的信道的频率选择性和/或时间选择性，选择适当的模式。所选择的模式允许改进对导频符号的接收。此外，可以将扰码应用于用于减少相同频率上和相同时隙中的干扰和/或偏置不同移动站的模式。

4. 发明申请

WO2006125150A2 SOFTER AND SOFT HANDOFF IN AN ORTHOGONAL FREQUENCY DIVISION WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：正交频分无线通信系统中的SOFTTER和软切换
公开(公告)号：WO2006125150A2
公开(公告)日：2006-11-23
申请号：PCT/US2006019434
申请日：2006-05-17
申请人： QUALCOMM INC , SUTIVONG ARAK , NAGUIB AYMAN FAWZY , GORE DHANANJAY ASHOK , GOROKHOV ALEXEI , JI TINGFANG
发明人： SUTIVONG ARAK , NAGUIB AYMAN FAWZY , GORE DHANANJAY ASHOK , GOROKHOV ALEXEI , JI TINGFANG
IPC分类号： H04J11/00 , H04W36/18 , H04W48/08
CPC分类号： H04B1/713 , H04B7/022 , H04B7/0491 , H04L5/0012 , H04L5/0023 , H04L5/0048 , H04L5/006 , H04L5/0069 , H04L25/0226 , H04L27/2613 , H04W36/18 , H04W48/08
摘要： Transmission patterns for pilot symbols transmitted from a mobile station or base station are provided. The patterns may be selected according to a location of the mobile station with respect to one or more antennas are provided. In some aspects, the pattern may be selected based upon the distance between the mobile station and the one or more antennas. In other aspect, the pattern may be based upon whether the mobile station is in handoff.
摘要翻译：提供从移动台或基站发送的导频符号的传输模式。可以根据移动台相对于一个或多个天线的位置来选择模式。在一些方面，可以基于移动台与一个或多个天线之间的距离来选择该模式。在另一方面，该模式可以基于移动台是否处于切换状态。

5. 发明申请

WO2006132835A3 RECEPTION OF H-ARQ TRANSMISSIONS WITH INTERFERENCE CANCELLATION IN A QUASI-ORTHOGONAL COMMUNICATION SYSTEM 审中-公开
标题翻译：接收正交通信系统中干扰消除的H-ARQ传输
公开(公告)号：WO2006132835A3
公开(公告)日：2007-07-26
申请号：PCT/US2006020611
申请日：2006-05-25
申请人： QUALCOMM INC , NAGUIB AYMAN FAWZY , GOROKHOV ALEXEI , GORE DHANANJAY ASKOK , JI TINGFANG , SUTIVONG ARAK
发明人： NAGUIB AYMAN FAWZY , GOROKHOV ALEXEI , GORE DHANANJAY ASKOK , JI TINGFANG , SUTIVONG ARAK
IPC分类号： H04Q7/00
CPC分类号： H04L1/1819 , H04B2001/7152 , H04L5/0023 , H04L25/0224
摘要： To receive packets with interference cancellation, block transmissions for the packets are received on time-frequency blocks used by these packets. Receiver spatial processing is performed on input symbols to obtain detected symbols. Each packet is demodulated and decoded based on all detected symbols obtained for all block transmissions received for the packet. For each packet that is decoded correctly, the transmission for the packet is terminated, the interference due to the packet is estimated, and the estimated interference is subtracted from the input symbols for all time-frequency blocks used by the packet. Receiver spatial processing is performed on the interference-canceled symbols to obtain new detected symbols for all time-frequency blocks used by all correctly decoded packets. Each packet decoded in error and overlapping at least partially with any correctly decoded packet may be demodulated and decoded based on all detected symbols available for that packet.
摘要翻译：为了接收具有干扰消除的分组，在这些分组使用的时间 - 频率块上接收分组的块传输。对输入符号执行接收机空间处理以获得检测符号。基于为分组接收到的所有块传输获得的所有检测到的符号，对每个分组进行解调和解码。对于正确解码的每个分组，分组的传输被终止，估计由于分组引起的干扰，并且从分组使用的所有时间频率块的输入符号中减去所估计的干扰。对干扰消除的符号进行接收机空间处理，以获得由所有正确解码的分组使用的所有时间频率块的新的检测符号。至少部分地与任何正确解码的分组进行错误解码和重叠的每个分组可以基于可用于该分组的所有检测到的符号进行解调和解码。

6. 发明申请

WO2006135518A3 LOW COMPLEXITY BEAMFORMING FOR MULTIPLE ANTENNA SYSTEMS 审中-公开
标题翻译：用于多个天线系统的低复杂度波束
公开(公告)号：WO2006135518A3
公开(公告)日：2007-03-29
申请号：PCT/US2006018357
申请日：2006-05-12
申请人： QUALCOMM INC , JI TINGFANG , NAGUIB AYMAN FAWZY , SUTIVONG ARAK , GORE DHANANJAY ASHOK , GOROKHOV ALEXEI , SAMPATH HEMANTH , DONG MIN
发明人： JI TINGFANG , NAGUIB AYMAN FAWZY , SUTIVONG ARAK , GORE DHANANJAY ASHOK , GOROKHOV ALEXEI , SAMPATH HEMANTH , DONG MIN
IPC分类号： H04J11/00
CPC分类号： H01Q3/26 , H04B1/713 , H04B7/0617 , H04B7/0626 , H04L27/2626
摘要： Methods and apparatuses are disclosed that utilize the discrete Fourier transform of time domain responses to generate beamforming weights for wireless communication. In addition, in some embodiments frequency subcarriers constituting less than all of the frequency subcarriers allocated for communication to a user may utilized for generating the beamforming weights.
摘要翻译：公开了利用时域响应的离散傅立叶变换来生成用于无线通信的波束成形权重的方法和装置。此外，在一些实施例中，构成小于分配给用户通信的所有频率副载波的频率副载波可用于产生波束形成权重。

7. 发明申请

WO2006069296A2 METHODS AND APPARATUS FOR FLEXIBLE FORWARD-LINK AND REVERSE-LINK HANDOFFS 审中-公开
标题翻译：灵活的前向链接和反向链接手段的方法和设备
公开(公告)号：WO2006069296A2
公开(公告)日：2006-06-29
申请号：PCT/US2005046738
申请日：2005-12-22
申请人： QUALCOMM INC , JULIAN DAVID JONATHAN , AGRAWAL AVNEESH , SUTIVONG ARAK , TEAGUE EDWARD HARRISON
发明人： JULIAN DAVID JONATHAN , AGRAWAL AVNEESH , SUTIVONG ARAK , TEAGUE EDWARD HARRISON
IPC分类号： H04W36/06
CPC分类号： H04W36/06
摘要： The disclosed embodiments provide for methods and systems for selecting sectors for handoff in a communication system. According to one aspect, the method includes monitoring an indicia of transmit power on a plurality of RL control channels directed to a plurality of sectors, and selecting one of the sectors as a candidate for a RL handoff. The disclosed embodiments also provide for methods and systems for indicating a selected serving sector for handoff in a communication system. According to one aspect, the method includes sending a first signal to a first sector to indicate the first sector as a serving sector for a forward-link handoff, and sending a second signal to a second sector to indicate the second sector as a serving sector for a reverse-link handoff.
摘要翻译：所公开的实施例提供了用于在通信系统中选择用于切换的扇区的方法和系统。根据一个方面，所述方法包括：监视指向多个扇区的多个RL控制信道上的发射功率的标记，以及选择所述扇区之一作为RL切换的候选。所公开的实施例还提供了用于在通信系统中指示用于切换的所选择的服务扇区的方法和系统。根据一个方面，所述方法包括向第一扇区发送第一信号以将第一扇区指示为用于前向链路切换的服务扇区，以及向第二扇区发送第二信号以将第二扇区指示为服务扇区用于反向链路切换。

8. 发明申请

WO2007024853A2 AUXILIARY FL MIMO PILOT TRANSMISSION IN 1XEV-DO 审中-公开
标题翻译： AUXILIARY FL MIMO PILOT传输1XEV-DO
公开(公告)号：WO2007024853A2
公开(公告)日：2007-03-01
申请号：PCT/US2006032768
申请日：2006-08-22
申请人： QUALCOMM INC , SUTIVONG ARAK , AGRAWAL AVNEESH , KADOUS TAMER
发明人： SUTIVONG ARAK , AGRAWAL AVNEESH , KADOUS TAMER
IPC分类号： H04B7/005
CPC分类号： H04W52/325 , H04B7/0417 , H04B7/063 , H04B7/0632
摘要： Systems and methodologies are described that facilitate providing auxiliary multiple-input, multiple-output (MIMO) pilot signals to MIMO user devices in a wireless communication environment. According to some aspects, a portion of data transmission power may be reallocated for auxiliary MIMO pilot transmission during a data segment in a time slot, in order to permit a MIMO user device to perform CQI and rank prediction. Additionally or alternatively, non-MIMO pilot transmission power may be reallocated in a pilot segment in the time slot for transmission of an auxiliary MIMO pilot signal to permit the MIMO user device to demodulate data transmitted in data segments of the time slot. MIMO pilot signals may additionally be time-division multiplexed within or across time slots and may be transmitted over available Walsh codes in data and control segments.
摘要翻译：描述了有助于在无线通信环境中向MIMO用户设备提供辅助多输入多输出（MIMO）导频信号的系统和方法。根据一些方面，可以在时隙中的数据段期间重新分配一部分数据发送功率用于辅助MIMO导频传输，以便允许MIMO用户设备执行CQI和秩预测。另外或替代地，可以在时隙中的导频段中重新分配非MIMO导频传输功率，以传输辅助MIMO导频信号，以允许MIMO用户设备解调在该时隙的数据段中发送的数据。 MIMO导频信号可以另外在时隙内或跨时隙进行时分复用，并且可以在数据和控制段中通过可用的沃尔什码传输。

9. 发明申请

WO2006071831A2 EFFICIENT ACK TO NACK ERROR DETECTION 审中-公开
标题翻译：有效应答NACK错误检测
公开(公告)号：WO2006071831A2
公开(公告)日：2006-07-06
申请号：PCT/US2005046985
申请日：2005-12-22
申请人： QUALCOMM INC , SUTIVONG ARAK , AGRAWAL AVNEESH , TEAGUE EDWARD HARRISON
发明人： SUTIVONG ARAK , AGRAWAL AVNEESH , TEAGUE EDWARD HARRISON
IPC分类号： H04L1/18 , H04L1/00
CPC分类号： H04L1/1829 , H04L1/0003 , H04L1/0007 , H04L1/0009 , H04L1/0025 , H04L1/1816 , H04L1/1819 , H04L2001/125
摘要： A method and apparatus to determine whether a transmission was successfully received in a multiple access communication system is claimed. First and second encoded data packets are received and decoded. The first and second data packets are then re-encoded, and correlated to determine whether the first and second re-encoded data packets are the same. If there is a high degree of correlation, an indicator of acknowledgement is transmitted to indicate that there is a high degree of correlation between the first and second re-encoded data packets. If there is a low degree of correlation, a determination is made that the previously transmitted indicator of acknowledgement was correctly received.
摘要翻译：要求保护一种用于确定在多址通信系统中是否成功接收到传输的方法和设备。第一和第二编码数据分组被接收和解码。然后对第一和第二数据分组进行重新编码和相关以确定第一和第二重新编码的数据分组是否相同。如果存在高度相关性，则发送确认指示符以指示第一和第二重新编码数据分组之间存在高度相关性。如果相关程度较低，则确定先前发送的确认指示被正确接收。

10. 发明申请

WO2007024853A8 AUXILIARY FORWARD LINK MIMO PILOT TRANSMISSION IN 1XEV-DO 审中-公开
标题翻译： 1XEV-DO中的辅助前向链路MIMO引导传输
公开(公告)号：WO2007024853A8
公开(公告)日：2007-10-18
申请号：PCT/US2006032768
申请日：2006-08-22
申请人： QUALCOMM INC , SUTIVONG ARAK , AGRAWAL AVNEESH , KADOUS TAMER
发明人： SUTIVONG ARAK , AGRAWAL AVNEESH , KADOUS TAMER
IPC分类号： H04B7/005
CPC分类号： H04W52/325 , H04B7/0417 , H04B7/063 , H04B7/0632
摘要： Systems and methodologies are described that facilitate providing auxiliary multiple-input, multiple-output (MIMO) pilot signals to MIMO user devices in a wireless communication environment. According to some aspects, a portion of data transmission power may be reallocated for auxiliary MIMO pilot transmission during a data segment in a time slot, in order to permit a MIMO user device to perform CQI and rank prediction. Additionally or alternatively, non-MIMO pilot transmission power may be reallocated in a pilot segment in the time slot for transmission of an auxiliary MIMO pilot signal to permit the MIMO user device to demodulate data transmitted in data segments of the time slot. MIMO pilot signals may additionally be time-division multiplexed within or across time slots and may be transmitted over available Walsh codes in data and control segments.
摘要翻译：描述了有助于在无线通信环境中向MIMO用户设备提供辅助多输入多输出（MIMO）导频信号的系统和方法。根据一些方面，可以在时隙中的数据段期间重新分配一部分数据发送功率用于辅助MIMO导频传输，以便允许MIMO用户设备执行CQI和秩预测。另外或替代地，可以在时隙中的导频段中重新分配非MIMO导频传输功率，以传输辅助MIMO导频信号，以允许MIMO用户设备解调在该时隙的数据段中发送的数据。 MIMO导频信号可以另外在时隙内或跨时隙进行时分复用，并且可以通过数据和控制段中的可用沃尔什码传输。

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