公开(公告)号：US20060019694A1

公开(公告)日：2006-01-26

申请号：US10897463

申请日：2004-07-22

申请人： Arak Sutivong ,  Awneesh Agrawal ,  David Julian

发明人： Arak Sutivong ,  Awneesh Agrawal ,  David Julian

IPC分类号： H04Q7/20

CPC分类号： H04W52/247 ,  H04B17/309 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/20 ,  H04W24/00 ,  H04W52/125 ,  H04W52/146 ,  H04W52/16 ,  H04W52/20 ,  H04W52/24 ,  H04W52/241 ,  H04W52/242 ,  H04W52/243 ,  H04W52/283 ,  H04W52/36 ,  H04W52/362 ,  H04W52/367 ,  H04W52/54 ,  H04W52/60 ,  H04W88/08

摘要： Techniques for adjusting transmit power to mitigate both intra-sector interference to a serving base station and inter-sector interference to neighbor base stations are described. The amount of inter-sector interference that a terminal may cause may be roughly estimated based on the total interference observed by each neighbor base station, channel gains for the serving and neighbor base stations, and the current transmit power level. The transmit power may be decreased if high interference is observed by a neighbor base station and increased otherwise. The transmit power may be adjusted by a larger amount and/or more frequently if the terminal is located closer to the neighbor base station observing high interference and/or if the current transmit power level is higher, and vice versa. The intra-sector interference is maintained within an acceptable level by limiting a received SNR for the terminal to be within a range of allowable SNRs.

公开(公告)号：US20060285515A1

公开(公告)日：2006-12-21

申请号：US11450230

申请日：2006-06-08

申请人： David Julian ,  Arak Sutivong

发明人： David Julian ,  Arak Sutivong

IPC分类号： H04Q7/00

CPC分类号： H04W72/1278 ,  H04W72/12 ,  H04W72/1205 ,  H04W88/08

摘要： Systems and methodologies are described that facilitate efficiently providing scheduling information from an access terminal to a base station to enable effectuating scheduling decisions. Access terminals may transmit scheduling information in bifurcated requests. For instance, coarse scheduling information may be transferred utilizing a dedicated out-of-band channel, and fine scheduling information may be transmitted over an in-band channel.

摘要翻译： 描述了有助于有效地从接入终端向基站提供调度信息以实现执行调度决策的系统和方法。 接入终端可以在分叉请求中传送调度信息。 例如，可以使用专用带外信道来传送粗调度信息，并且精细调度信息可以通过带内信道来发送。

公开(公告)号：US20080009292A1

公开(公告)日：2008-01-10

申请号：US11856648

申请日：2007-09-17

申请人： David Julian ,  Avneesh Agrawal ,  Arak Sutivong ,  Edward Teague

发明人： David Julian ,  Avneesh Agrawal ,  Arak Sutivong ,  Edward Teague

IPC分类号： H04Q7/20

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。

公开(公告)号：US20120093028A9

公开(公告)日：2012-04-19

申请号：US11293686

申请日：2005-12-02

申请人： Murat Mese ,  Arak Sutivong ,  David Julian ,  Tingfang Ji

发明人： Murat Mese ,  Arak Sutivong ,  David Julian ,  Tingfang Ji

IPC分类号： H04L12/28 ,  H04Q7/00

CPC分类号： H04W24/02 ,  H04L1/0002 ,  H04L1/0017 ,  H04L1/0026 ,  H04W24/00 ,  H04W28/04 ,  H04W48/08 ,  H04W48/16 ,  H04W52/04 ,  H04W72/0426 ,  H04W72/082 ,  H04W92/20

摘要： For interference control, a sector m estimates interference observed from terminals in neighbor sectors and obtains an interference estimate. Sector m may generate an over-the-air (OTA) other-sector interference (OSI) report and/or an inter-sector (IS)OSI report based on the interference estimate. Sector m may send the IS OSI report to the neighbor sectors, receive IS OSI reports from the neighbor sectors, and regulate data transmissions for terminals in sector m based on the received IS OSI reports. Sector m may control admission of terminals to sector m, de-assign admitted terminals, schedule terminals in sector m in a manner to reduce interference to the neighbor sectors, and/or assign the terminals in sector m with traffic channels that cause less interference to the neighbor sectors.

摘要翻译： 对于干扰控制，扇区m估计在相邻扇区中从终端观察到的干扰并获得干扰估计。 扇区m可以基于干扰估计产生空中（OTA）其他扇区干扰（OSI）报告和/或扇区间（IS）OSI报告。 扇区m可以将IS OSI报告发送到相邻扇区，从相邻扇区接收IS OSI报告，并根据接收的IS OSI报告调整扇区m中的终端的数据传输。 扇区m可以控制终端到扇区m的接入，去分配接纳的终端，以扇区m调度终端以减少对相邻扇区的干扰的方式，和/或将扇区m中的终端分配给导致较少干扰的业务信道 邻近部门。

公开(公告)号：US20070150799A1

公开(公告)日：2007-06-28

申请号：US11676563

申请日：2007-02-20

申请人： Arak Sutivong ,  Avneesh Agrawal ,  David Julian

发明人： Arak Sutivong ,  Avneesh Agrawal ,  David Julian

IPC分类号： H03M13/03

CPC分类号： H04L1/0045 ,  H04L1/0057 ,  H04L1/20 ,  H04W52/125 ,  H04W52/20

摘要： Techniques for performing erasure detection and power control for a transmission without error detection coding are described. For erasure detection, a transmitter transmits codewords via a wireless channel. A receiver computes a metric for each received codeword, compares the computed metric against an erasure threshold, and declares the received codeword to be “erased” or “non-erased”. The receiver dynamically adjusts the erasure threshold based on received known codewords to achieve a target level of performance. For power control, an inner loop adjusts the transmit power to maintain a received signal quality (SNR) at a target SNR. An outer loop adjusts the target SNR based on the status of received codewords (erased or non-erased) to achieve a target erasure rate. A third loop adjusts the erasure threshold based on the status of received known codewords (“good”, “bad”, or erased) to achieve a target conditional error rate.

摘要翻译： 描述了用于对没有错误检测编码的传输进行擦除检测和功率控制的技术。 为了擦除检测，发射机经由无线信道发送码字。 接收机计算每个接收到的码字的度量，将所计算的度量与擦除阈值进行比较，并将接收的码字声明为“擦除”或“未擦除”。 接收机基于接收到的已知码字来动态地调整擦除阈值，以实现目标性能水平。 对于功率控制，内部环路调整发射功率以将接收信号质量（SNR）保持在目标SNR。 外部环路基于接收到的码字（擦除或未擦除）的状态来调整目标SNR以实现目标擦除率。 第三循环基于接收的已知码字的状态（“好”，“坏”或被擦除）来调整擦除阈值，以实现目标条件错误率。

公开(公告)号：US20060293076A1

公开(公告)日：2006-12-28

申请号：US11452722

申请日：2006-06-13

申请人： David Julian ,  Arak Sutivong

发明人： David Julian ,  Arak Sutivong

IPC分类号： H04B7/00 ,  H04Q7/20

CPC分类号： H04W52/223 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/023 ,  H04W52/146 ,  H04W52/16 ,  H04W52/241 ,  H04W52/247 ,  H04W72/0473 ,  H04W72/12 ,  H04W72/1231 ,  H04W72/1268

摘要： Systems and methodologies are described that facilitate scheduling via a power control algorithm that dynamically update a scheduling metric (e.g., adjusting transmission power for sub-carriers) based on a prediction function and/or inference model of expected power requirements. In one aspect, the power prediction component can include two further components, namely: the data channel component and the control channel component—wherein a carrier to interference ratio (C/I) information is being transmitted on such control channel and the power is adjusted to obtain performance requirements. Accordingly, an efficient scheduling of users on a reverse link in an orthogonal manner can be provided, to optimally use system resources, while simultaneously: maintaining a predetermined and/or arbitrary fairness metrics, maintaining quality of service and maximizing throughput.

摘要翻译： 描述了通过基于预期功率需求的预测函数和/或推理模型的动态地更新调度度量（例如，调整子载波的发射功率）的功率控制算法来促进调度的系统和方法。 在一个方面，功率预测组件可以包括两个另外的组件，即：数据信道分量和控制信道分量，其中载波干扰比（C / I）信息正在这种控制信道上传输，并且功率被调整 获得性能要求。 因此，可以提供以正交方式在反向链路上的用户的有效调度，以最佳地利用系统资源，同时：维持预定和/或任意的公平度量，维持服务质量和最大化吞吐量。

公开(公告)号：US20050283715A1

公开(公告)日：2005-12-22

申请号：US10890717

申请日：2004-07-13

申请人： Arak Sutivong ,  Avneesh Agrawal ,  David Julian

发明人： Arak Sutivong ,  Avneesh Agrawal ,  David Julian

IPC分类号： H04B7/005 ,  H04L1/00 ,  H04L1/20 ,  H03M13/03

CPC分类号： H04L1/0045 ,  H04L1/0057 ,  H04L1/20 ,  H04W52/125 ,  H04W52/20

摘要： Techniques for performing erasure detection and power control for a transmission without error detection coding are described. For erasure detection, a transmitter transmits codewords via a wireless channel. A receiver computes a metric for each received codeword, compares the computed metric against an erasure threshold, and declares the received codeword to be “erased” or “non-erased”. The receiver dynamically adjusts the erasure threshold based on received known codewords to achieve a target level of performance. For power control, an inner loop adjusts the transmit power to maintain a received signal quality (SNR) at a target SNR. An outer loop adjusts the target SNR based on the status of received codewords (erased or non-erased) to achieve a target erasure rate. A third loop adjusts the erasure threshold based on the status of received known codewords (“good”, “bad”, or erased) to achieve a target conditional error rate.

摘要翻译： 描述了用于对没有错误检测编码的传输进行擦除检测和功率控制的技术。 为了擦除检测，发射机经由无线信道发送码字。 接收机计算每个接收到的码字的度量，将所计算的度量与擦除阈值进行比较，并且将所接收的码字声明为“擦除”或“未擦除”。 接收机基于接收到的已知码字来动态地调整擦除阈值，以实现目标性能水平。 对于功率控制，内部环路调整发射功率以将接收信号质量（SNR）保持在目标SNR。 外部环路基于接收到的码字（擦除或未擦除）的状态来调整目标SNR以实现目标擦除率。 第三循环基于接收的已知码字的状态（“好”，“坏”或被擦除）来调整擦除阈值，以实现目标条件错误率。

公开(公告)号：US20070077956A1

公开(公告)日：2007-04-05

申请号：US11507715

申请日：2006-08-21

申请人： David Julian ,  Arak Sutivong

发明人： David Julian ,  Arak Sutivong

IPC分类号： H04B7/00

CPC分类号： H04W52/36 ,  H04W52/14 ,  H04W52/146 ,  H04W52/16 ,  H04W52/246 ,  H04W52/267 ,  H04W52/325 ,  H04W52/40

摘要： Systems and methodologies are described that facilitate performing scalable transmission power offsets for an access terminal to ensure that a listening base station can hear a signal transmitted from the access terminal. The power offset is generated as a function of a reverse link channel quality indicator feedback loop to permit the access terminal to adjust transmission power sufficiently without excessive power boosting, such as can occur under a static power-boosting scheme. Monitored parameters associated with channel quality indications may comprise erasure rate indicators provided by base stations in response to CQI signals from the access terminal, as well as mean received power levels associated with superframe preamble received at the access terminal.

摘要翻译： 描述了便于对接入终端执行可扩展发射功率偏移的系统和方法，以确保监听基站能够听到从接入终端发送的信号。 产生功率偏移作为反向链路信道质量指示符反馈回路的函数，以允许接入终端充分调整发射功率，而不需要过多的功率提升，例如在静态功率增强方案下可能发生的功率偏移。 与信道质量指示相关联的监视参数可以包括响应于来自接入终端的CQI信号的基站提供的擦除率指示符以及与在接入终端处接收的超帧前缀相关联的平均接收功率电平。

公开(公告)号：US20060285503A1

公开(公告)日：2006-12-21

申请号：US11293686

申请日：2005-12-02

申请人： Murat Mese ,  Arak Sutivong ,  David Julian ,  Tingfang Ji

发明人： Murat Mese ,  Arak Sutivong ,  David Julian ,  Tingfang Ji

IPC分类号： H04L12/28 ,  H04Q7/00

CPC分类号： H04W24/02 ,  H04L1/0002 ,  H04L1/0017 ,  H04L1/0026 ,  H04W24/00 ,  H04W28/04 ,  H04W48/08 ,  H04W48/16 ,  H04W52/04 ,  H04W72/0426 ,  H04W72/082 ,  H04W92/20

摘要： For interference control, a sector m estimates interference observed from terminals in neighbor sectors and obtains an interference estimate. Sector m may generate an over-the-air (OTA) other-sector interference (OSI) report and/or an inter-sector (IS)OSI report based on the interference estimate. Sector m may send the IS OSI report to the neighbor sectors, receive IS OSI reports from the neighbor sectors, and regulate data transmissions for terminals in sector m based on the received IS OSI reports. Sector m may control admission of terminals to sector m, de-assign admitted terminals, schedule terminals in sector m in a manner to reduce interference to the neighbor sectors, and/or assign the terminals in sector m with traffic channels that cause less interference to the neighbor sectors.

摘要翻译： 对于干扰控制，扇区m估计在相邻扇区中从终端观察到的干扰并获得干扰估计。 扇区m可以基于干扰估计产生空中（OTA）其他扇区干扰（OSI）报告和/或扇区间（IS）OSI报告。 扇区m可以将IS OSI报告发送到相邻扇区，从相邻扇区接收IS OSI报告，并根据接收的IS OSI报告调整扇区m中的终端的数据传输。 扇区m可以控制终端到扇区m的接入，去分配接纳的终端，以扇区m调度终端以减少对相邻扇区的干扰的方式，和/或将扇区m中的终端分配给导致较少干扰的业务信道 邻近部门。

公开(公告)号：US20060209721A1

公开(公告)日：2006-09-21

申请号：US11158584

申请日：2005-06-21

申请人： Murat Mese ,  Arak Sutivong ,  David Julian

发明人： Murat Mese ,  Arak Sutivong ,  David Julian

IPC分类号： H04L12/28 ,  H04Q7/00

CPC分类号： H04W52/24 ,  H04B17/10 ,  H04B17/345 ,  H04L1/00 ,  H04W28/24 ,  H04W52/146 ,  H04W52/244 ,  H04W52/247 ,  H04W52/265 ,  H04W52/362 ,  H04W72/082 ,  H04W92/20

摘要： For interference control, a sector m estimates interference observed from terminals in neighbor sectors and obtains an interference estimate. Sector m may generate an over-the-air (OTA) other-sector interference (OSI) report and/or an inter-sector (IS) OSI report based on the interference estimate. Sector m may broadcast the OTA OSI report to the terminals in the neighbor sectors. These terminals may adjust their transmit powers based on the OTA OSI report. Sector m may send the IS OSI report to the neighbor sectors, recieve IS OSI reports from the neighbor sectors, and regulate data transmissions for terminals in sector m based on the received IS OSI reports. Sector m may control admission of terminals to sector m, de-assign admitted terminals, schedule terminals in sector m in a manner to reduce interference to the neighbor sectors, and/or assign the terminals in sector m with traffic channels that cause less interference to the neighbor sectors.

摘要翻译： 对于干扰控制，扇区m估计在相邻扇区中从终端观察到的干扰并获得干扰估计。 扇区m可以基于干扰估计产生空中（OTA）其他扇区干扰（OSI）报告和/或扇区间（IS）OSI报告。 扇区m可以向相邻扇区的终端广播OTA OSI报告。 这些终端可以根据OTA OSI报告调整其发射功率。 扇区m可以将IS OSI报告发送到相邻扇区，从相邻扇区接收IS OSI报告，并且基于接收的IS OSI报告来调整扇区m中的终端的数据传输。 扇区m可以控制终端到扇区m的接入，去分配接纳的终端，以扇区m调度终端以减少对相邻扇区的干扰的方式，和/或将扇区m中的终端分配给导致较少干扰的业务信道 邻近部门。