公开(公告)号：US09801091B2

公开(公告)日：2017-10-24

申请号：US14356620

申请日：2011-11-11

申请人： Jinhua Liu ,  Zhang Zhang ,  Mats Blomgren ,  Klas Johansson

发明人： Jinhua Liu ,  Zhang Zhang ,  Mats Blomgren ,  Klas Johansson

IPC分类号： H04L12/26 ,  H04W28/02 ,  H04W52/34

CPC分类号： H04W28/0284 ,  H04W28/0236 ,  H04W28/0289 ,  H04W52/343

摘要： The present invention discloses schemes to perform load control taking uplink BLER statistics into account. An uplink load control method and apparatus are provided in a wireless communication system. The uplink load control method comprises estimating uplink load budget in a cell of the wireless communication system; determining whether the cell is over-loaded based on Block Error Rate (BLER) statistics of non-Guarded Bit Rate (non-GBR) users in the cell and/or Fast Congestion Control (FCC) action statistics in the cell; decreasing the uplink load budget if it is determined that the cell is over-loaded; and increasing the uplink load budget if it is determined that the cell is not over-loaded. Preferably, increasing or decreasing of the uplink load budget is based on the BLER stastics BLERstatistic of targeted users by FCC. By means of the BLER and FCC status, BLER of EUL users can be controlled in an acceptable range while maximizing the benefit of FCC in improving load utilization and consequently uplink throughput as much as possible. On the other hand, the uplink load control method can further comprises adjusting a RoT target RoTtgt, based on BLER statistics of Guarded Bit Rate (GBR) users in order to increase load headroom available for non-GBR users in appropriate conditions without violating the performance of GBR users.

公开(公告)号：US09692566B2

公开(公告)日：2017-06-27

申请号：US14378109

申请日：2012-02-28

申请人： Xinyu Gu ,  Zhang Zhang ,  Jinhua Liu

发明人： Xinyu Gu ,  Zhang Zhang ,  Jinhua Liu

IPC分类号： H04L5/00 ,  H04W72/12 ,  H04W72/08

CPC分类号： H04L5/0032 ,  H04W72/082 ,  H04W72/1231

摘要： The present application discloses a method for mitigating inter-cell interference (ICI) by scheduling user equipments. The method comprises estimating inter-cell interference tolerance of each of at least one neighboring cell during uplink transmission of the user equipment; and coordinating uplink scheduling of the user equipment in accordance with the inter-cell interference tolerance. The present application also discloses a base station, a radio network controller and relevant signaling for mitigating inter-cell interference (ICI) by scheduling user equipments.

公开(公告)号：US20140301193A1

公开(公告)日：2014-10-09

申请号：US14356620

申请日：2011-11-11

申请人： Jinhua Liu ,  Zhang Zhang ,  Mats Blomgren ,  Klas Johansson

发明人： Jinhua Liu ,  Zhang Zhang ,  Mats Blomgren ,  Klas Johansson

IPC分类号： H04W28/02

CPC分类号： H04W28/0284 ,  H04W28/0236 ,  H04W28/0289 ,  H04W52/343

摘要： The present invention discloses schemes to perform load control taking uplink BLER statistics into account. An uplink load control method and apparatus are provided in a wireless communication system. The uplink load control method comprises estimating uplink load budget in a cell of the wireless communication system; determining whether the cell is over-loaded based on Block Error Rate (BLER) statistics of non-Guarded Bit Rate (non-GBR) users in the cell and/or Fast Congestion Control (FCC) action statistics in the cell; decreasing the uplink load budget if it is determined that the cell is over-loaded; and increasing the uplink load budget if it is determined that the cell is not over-loaded. Preferably, increasing or decreasing of the uplink load budget is based on the BLER stastics BLERstatistic of targeted users by FCC. By means of the BLER and FCC status, BLER of EUL users can be controlled in an acceptable range while maximizing the benefit of FCC in improving load utilization and consequently uplink throughput as much as possible. On the other hand, the uplink load control method can further comprises adjusting a RoT target RoTtgt, based on BLER statistics of Guarded Bit Rate (GBR) users in order to increase load headroom available for non-GBR users in appropriate conditions without violating the performance of GBR users.

摘要翻译： 本发明公开了进行上行BLER统计的负载控制的方案。 在无线通信系统中提供上行链路负载控制方法和装置。 上行链路负载控制方法包括估计无线通信系统的小区中的上行负载预算; 基于小区中的非保密比特率（非GBR）用户和/或快速拥塞控制（FCC）动作统计信息中的块误码率（BLER）统计信息来确定小区是否超载; 如果确定小区被超载，则减小上行链路负载预算; 并且如果确定该小区未被过载，则增加上行链路负载预算。 优选地，上行负载预算的增加或减少是基于FCC的目标用户的BLER stastics BLERstatistic。 通过BLER和FCC状态，可以将EUL用户的BLER控制在可接受的范围内，同时最大限度地提高FCC的优点，尽可能地提高负载利用率，从而提高上行链路吞吐量。 另一方面，上行链路负载控制方法还可以包括基于保护比特率（GBR）用户的BLER统计来调整RoT目标RoTtgt，以便在适当的条件下增加对非GBR用户的负载净空，而不违反性能 的GBR用户。

公开(公告)号：US08413003B2

公开(公告)日：2013-04-02

申请号：US12988419

申请日：2008-12-02

申请人： Rui Fan ,  Xinyu Gu ,  Rong Hu ,  Jinhua Liu ,  Zhang Zhang

发明人： Rui Fan ,  Xinyu Gu ,  Rong Hu ,  Jinhua Liu ,  Zhang Zhang

IPC分类号： G08C25/02

CPC分类号： H04L1/1829 ,  H04L1/1812 ,  H04L1/1825 ,  H04L1/189 ,  H04W24/02 ,  H04W24/08

摘要： A device (110) receives consecutive negative acknowledgments (NACKs) (540), measures a downlink channel quality (530) associated with the device (110), and triggers autonomous retransmission (430) when power is limited in the device (110), when the device (110) is using a minimum usable enhanced dedicated channel (E-DCH) transport format combination (ETFC), and when one of a number of consecutive NACKs (540) is greater than a predefined number or the measured downlink channel quality (530) is less than a predefined threshold.

公开(公告)号：US20110041026A1

公开(公告)日：2011-02-17

申请号：US12988419

申请日：2008-12-02

申请人： Rui Fan ,  Xinyu Gu ,  Rong Hu ,  Jinhua Liu ,  Zhang Zhang

发明人： Rui Fan ,  Xinyu Gu ,  Rong Hu ,  Jinhua Liu ,  Zhang Zhang

IPC分类号： H04L1/18 ,  G06F11/14

CPC分类号： H04L1/1829 ,  H04L1/1812 ,  H04L1/1825 ,  H04L1/189 ,  H04W24/02 ,  H04W24/08

摘要： A device (110) receives consecutive negative acknowledgments (NACKs) (540), measures a downlink channel quality (530) associated with the device (110), and triggers autonomous retransmission (430) when power is limited in the device (110), when the device (110) is using a minimum usable enhanced dedicated channel (E-DCH) transport format combination (ETFC), and when one of a number of consecutive NACKs (540) is greater than a predefined number or the measured downlink channel quality (530) is less than a predefined threshold.

摘要翻译： 设备（110）接收连续的否定确认（NACK）（540），测量与设备（110）相关联的下行链路信道质量（530），并且当在设备（110）中限制功率时触发自主重传（430） 当设备（110）使用最小可用增强型专用信道（E-DCH）传输格式组合（ETFC）时，并且当多个连续NACK（540）中的一个大于预定义号码或所测量的下行链路信道质量 （530）小于预定阈值。

公开(公告)号：US20130336112A1

公开(公告)日：2013-12-19

申请号：US14002672

申请日：2012-01-31

申请人： Jinhua Liu ,  Zhang Zhang

发明人： Jinhua Liu ,  Zhang Zhang

IPC分类号： H04W28/02

CPC分类号： H04W28/0289 ,  H04B7/0404 ,  H04B7/0617 ,  H04B7/0623 ,  H04B7/0634 ,  H04W28/08 ,  H04W88/08

摘要： The present invention provides a method of adjusting uplink load variance due to a change of a beam direction turning from towards a current beamforming control cell to towards a target beamforming control cell, comprising: estimating an uplink load increment of the target beamforming control cell due to the change of the beam direction, before the beam direction turning from towards the current beamforming control cell to towards the target beamforming control cell; comparing the estimated uplink load increment with an available uplink load headroom of the target beamforming control cell; and adjusting an uplink load grant of a user equipment if the uplink load increment is larger than the available uplink load headroom, so that an uplink load increment is not beyond the available uplink load headroom, so that the uplink load increment is not beyond the available uplink load headroom.

摘要翻译： 本发明提供了一种由于从朝向当前波束形成控制小区向目标波束形成控制小区转向的波束方向的变化来调整上行链路负载变化的方法，包括：估计由于 在光束方向从当前波束成形控制单元转向朝向目标波束形成控制单元之前，波束方向的变化; 将估计的上行链路负载增量与目标波束形成控制小区的可用上行链路负载余量进行比较; 以及如果所述上行链路负载增量大于所述可用上行链路负载余量，则调整用户设备的上行链路负载许可，使得上行链路负载增量不超过所述可用上行链路负载余量，使得所述上行链路负载增量不超过所述可用 上行负载余量。

公开(公告)号：US08179853B2

公开(公告)日：2012-05-15

申请号：US12445631

申请日：2006-12-13

申请人： Rong Hu ,  Jinhua Liu ,  Zhang Zhang

发明人： Rong Hu ,  Jinhua Liu ,  Zhang Zhang

IPC分类号： H04L12/56 ,  H04L12/28 ,  H04W4/00

CPC分类号： H04W72/1247 ,  H04W28/18

摘要： In a method and apparatus for scheduling users in radio network system, the scheduling priority for each user of a group of users is made dependent on the unusable time for each user. Scheduling of the users is performed in accordance with the determined scheduling priority.

摘要翻译： 在用于在无线网络系统中调度用户的方法和装置中，一组用户的每个用户的调度优先级取决于每个用户的不可用时间。 根据确定的调度优先级来执行用户的调度。

公开(公告)号：US20150024770A1

公开(公告)日：2015-01-22

申请号：US14378109

申请日：2012-02-28

申请人： Xinyu Gu ,  Zhang Zhang ,  Jinhua Liu

发明人： Xinyu Gu ,  Zhang Zhang ,  Jinhua Liu

IPC分类号： H04L5/00

CPC分类号： H04L5/0032 ,  H04W72/082 ,  H04W72/1231

摘要： The present application discloses a method for mitigating inter-cell interference (ICI) by scheduling user equipments. The method comprises estimating inter-cell interference tolerance of each of at least one neighboring cell during uplink transmission of the user equipment; and coordinating uplink scheduling of the user equipment in accordance with the inter-cell interference tolerance. The present application also discloses a base station, a radio network controller and relevant signaling for mitigating inter-cell interference (ICI) by scheduling user equipments.

摘要翻译： 本申请公开了一种通过调度用户设备来减轻小区间干扰（ICI）的方法。 该方法包括：在用户设备的上行链路传输期间估计至少一个相邻小区中的每一个的小区间干扰容忍; 以及根据小区间干扰容限协调用户设备的上行调度。 本申请还公开了一种基站，无线网络控制器和用于通过调度用户设备来减轻小区间干扰（ICI）的相关信令。

公开(公告)号：US20100189080A1

公开(公告)日：2010-07-29

申请号：US12445631

申请日：2006-12-13

申请人： Rong Hu ,  Jinhua Liu ,  Zhang Zhang

发明人： Rong Hu ,  Jinhua Liu ,  Zhang Zhang

IPC分类号： H04W72/12 ,  H04B7/216

CPC分类号： H04W72/1247 ,  H04W28/18

摘要： In a method and apparatus for scheduling users in radio network system, the scheduling priority for each user of a group of users is made dependent on the unusable time for each user. Scheduling of the users is performed in accordance with the determined scheduling priority.

摘要翻译： 在用于在无线网络系统中调度用户的方法和装置中，一组用户的每个用户的调度优先级取决于每个用户的不可用时间。 根据确定的调度优先级来执行用户的调度。

公开(公告)号：US09432880B2

公开(公告)日：2016-08-30

申请号：US14111791

申请日：2012-02-29

申请人： Zhang Zhang ,  Jinhua Liu

发明人： Zhang Zhang ,  Jinhua Liu

IPC分类号： H04W28/08 ,  H04B7/04 ,  H04B7/06 ,  H04W16/28

CPC分类号： H04W28/085 ,  H04B7/0404 ,  H04B7/0617 ,  H04B7/0634 ,  H04W16/28 ,  H04W28/08

摘要： The present disclosure provides an uplink intra-frequency load balancing method. The uplink intra-frequency load balancing can be performed by adjusting a beam direction of a User Equipment UE. For each of UEs, the method comprises steps of: determining a cell load level of each cell based on an uplink load measurement received from base stations of a plurality of cells; determining a beam-forming capability of the UE based on a beam-forming gain of the UE; and calculating a cell balancing parameter for each of the plurality of cells, according to a common pilot channel CPICH quality report measured by the UE, the cell load levels of the plurality of cells and the beam-forming capability of the UE, so as to determine a beam-forming control cell towards which the beam direction of the UE is directed, the beam-forming control cell being a cell which has an optimal cell balancing parameter among the plurality of cells. The present disclosure further provides, for a UE which supports a CLBF mode but is not in the CLBF mode, a method for selectively activating the CLBF mode so as to enhance the effect of load balancing. The present further provides an uplink intra-frequency load balancing apparatus.

摘要翻译： 本公开提供了一种上行链路频率内负载均衡方法。 可以通过调整用户设备UE的波束方向来执行上行链路频率内负载平衡。 对于每个UE，所述方法包括以下步骤：基于从多个小区的基站接收的上行链路负载测量来确定每个小区的小区负载水平; 基于所述UE的波束形成增益来确定所述UE的波束形成能力; 以及根据由UE测量的公共导频信道CPICH质量报告，多个小区的小区负载水平和UE的波束形成能力，为每个小区计算小区平衡参数，以便 确定所述UE的波束方向所针对的波束成形控制单元，所述波束形成控制单元是在所述多个单元中具有最佳单元平衡参数的单元。 本公开还针对支持CLBF模式而不是CLBF模式的UE提供一种用于选择性地激活CLBF模式以增强负载平衡的效果的方法。 本发明还提供一种上行链路频率内负载均衡装置。