公开(公告)号：US20140369283A1

公开(公告)日：2014-12-18

申请号：US14345568

申请日：2012-03-27

申请人： Qingwei Ge ,  Gang Wang ,  Zhennian Sun ,  Ming Lei

发明人： Qingwei Ge ,  Gang Wang ,  Zhennian Sun ,  Ming Lei

IPC分类号： H04W24/02 ,  H04W72/08

CPC分类号： H04W24/02 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0689 ,  H04L1/1867 ,  H04W72/082

摘要： The present invention relates to a method for link adaptation in a wireless communication system. The method comprises: determining whether a UE operates in a SU-MIMO transmission mode or in a MU-MIMO transmission mode; applying, in responsive to determination that the UE operates in the SU-MIMO transmission mode, a SU-MIMO OLLA offset to a signal to interference and noise ratio adjusted with inner loop link adaptation; applying, in responsive to determination that the UE operates in the MU-MIMO transmission mode, a MU-MIMO OLLA offset to a signal to interference and noise ratio adjusted with inner loop link adaptation, wherein the MU-MIMO OLLA offset is based on the SU-MIMO OLLA offset and an extra offset which is indicative of inter-user interference, wherein the SU-MIMO OLLA offset and the extra offset are updated in responsive to receipt of an ACK/NACK message for a packet reported from the UE.

摘要翻译： 本发明涉及无线通信系统中的链路自适应的方法。 该方法包括：确定UE是以SU-MIMO传输模式还是以MU-MIMO传输模式运行; 在响应于UE在SU-MIMO传输模式中操作的确定的情况下应用针对由内环路适配调整的信噪比和噪声比的SU-MIMO OLLA偏移; 在响应于确定UE在MU-MIMO传输模式中操作的应用中，将MIMO-MIMO OLLA偏移量应用于通过内环路链路自适应调整的信噪比和噪声比，其中MU-MIMO OLLA偏移基于 SU-MIMO OLLA偏移和指示用户间干扰的额外偏移，其中，响应于从UE报告的分组的ACK / NACK消息的接收，SU-MIMO OLLA偏移和额外偏移被更新。

公开(公告)号：US09414241B2

公开(公告)日：2016-08-09

申请号：US14345568

申请日：2012-03-27

申请人： Qingwei Ge ,  Gang Wang ,  Zhennian Sun ,  Ming Lei

发明人： Qingwei Ge ,  Gang Wang ,  Zhennian Sun ,  Ming Lei

IPC分类号： H04L1/00 ,  H04W24/02 ,  H04B7/04 ,  H04W72/08 ,  H04B7/06 ,  H04L1/18

CPC分类号： H04W24/02 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0689 ,  H04L1/1867 ,  H04W72/082

摘要： The present invention relates to a method for link adaptation in a wireless communication system. The method comprises: determining whether a UE operates in a SU-MIMO transmission mode or in a MU-MIMO transmission mode; applying, in responsive to determination that the UE operates in the SU-MIMO transmission mode, a SU-MIMO OLLA offset to a signal to interference and noise ratio adjusted with inner loop link adaptation; applying, in responsive to determination that the UE operates in the MU-MIMO transmission mode, a MU-MIMO OLLA offset to a signal to interference and noise ratio adjusted with inner loop link adaptation, wherein the MU-MIMO OLLA offset is based on the SU-MIMO OLLA offset and an extra offset which is indicative of inter-user interference, wherein the SU-MIMO OLLA offset and the extra offset are updated in responsive to receipt of an ACK/NACK message for a packet reported from the UE.

摘要翻译： 本发明涉及无线通信系统中的链路自适应的方法。 该方法包括：确定UE是以SU-MIMO传输模式还是以MU-MIMO传输模式运行; 在响应于UE在SU-MIMO传输模式中操作的确定的情况下应用针对由内环路适配调整的信噪比和噪声比的SU-MIMO OLLA偏移; 在响应于确定UE在MU-MIMO传输模式中操作的应用中，将MIMO-MIMO OLLA偏移量应用于通过内环路链路自适应调整的信噪比和噪声比，其中MU-MIMO OLLA偏移基于 SU-MIMO OLLA偏移和指示用户间干扰的额外偏移，其中，响应于从UE报告的分组的ACK / NACK消息的接收，SU-MIMO OLLA偏移和额外偏移被更新。

公开(公告)号：US09485142B2

公开(公告)日：2016-11-01

申请号：US14385035

申请日：2012-03-30

申请人： Dalin Zhu ,  Zhennian Sun ,  Su Yi ,  Gang Wang ,  Ming Lei

发明人： Dalin Zhu ,  Zhennian Sun ,  Su Yi ,  Gang Wang ,  Ming Lei

IPC分类号： H04L12/24 ,  H04W72/04 ,  H04L5/14 ,  H04W24/02 ,  H04W28/18 ,  H04W72/08 ,  H04W88/08

CPC分类号： H04L41/0816 ,  H04L5/14 ,  H04W24/02 ,  H04W28/18 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0486 ,  H04W72/087 ,  H04W88/08

摘要： Embodiments of the disclosure provide a method and apparatus for reconfiguring DL-UL resource allocation in a TDD system. The method includes steps of: a) obtaining traffic condition about DL and UL data to be transmitted; b) estimating system-wise transmission capability and/or UE-wise transmission capability, wherein the system-wise transmission capability accounts for DL transmission capability and UL transmission capability of the TDD system, and the UE-wise transmission capability accounts for transmission capabilities of different UEs; and c) reconfiguring the DL-UL resource allocation according to the obtained traffic condition and the estimated system-wise transmission capability and/or UE-wise transmission capability.

摘要翻译： 本公开的实施例提供了一种用于在TDD系统中重新配置DL-UL资源分配的方法和装置。 该方法包括以下步骤：a）获得关于要发送的DL和UL数据的交通状况; b）估计系统传输能力和/或UE智能传输能力，其中系统传输能力考虑到TDD系统的DL传输能力和UL传输能力，并且UE智能传输能力考虑到传输能力 不同的UE; 以及c）根据获得的业务条件和估计的系统传输能力和/或UE智能传输能力重新配置DL-UL资源分配。

公开(公告)号：US09392606B2

公开(公告)日：2016-07-12

申请号：US14345107

申请日：2012-03-30

申请人： Dalin Zhu ,  Zhennian Sun ,  Su Yi ,  Gang Wang ,  Ming Lei

发明人： Dalin Zhu ,  Zhennian Sun ,  Su Yi ,  Gang Wang ,  Ming Lei

IPC分类号： H04L1/00 ,  H04W72/04 ,  H04L5/14

CPC分类号： H04W72/0486 ,  H04L5/14 ,  H04W72/0446

摘要： Embodiments of the disclosure provide a method and apparatus for dynamically adjusting UL-DL configuration. In the method according to embodiments of the present invention, downlink traffic load and uplink traffic load for transmission between a BS and a UE in a TDD system may be obtained, a UL-DL traffic load relation may be determined based on the downlink traffic load and the uplink traffic load and a UL-DL configuration may be selected based on the UL-DL traffic load relation.

摘要翻译： 本公开的实施例提供了用于动态调整UL-DL配置的方法和装置。 在根据本发明的实施例的方法中，可以获得用于TDD系统中的BS与UE之间的传输的下行业务负载和上行流量负载，可以基于下行业务负载来确定UL-DL业务负载关系 并且可以基于UL-DL业务负载关系来选择上行链路业务负载和UL-DL配置。

公开(公告)号：US20140376369A1

公开(公告)日：2014-12-25

申请号：US14345107

申请日：2012-03-30

申请人： Dalin Zhu ,  Zhennian Sun ,  Su Yi ,  Gang Wang ,  Ming Lei

发明人： Dalin Zhu ,  Zhennian Sun ,  Su Yi ,  Gang Wang ,  Ming Lei

IPC分类号： H04W72/04 ,  H04L5/14

CPC分类号： H04W72/0486 ,  H04L5/14 ,  H04W72/0446

摘要： Embodiments of the disclosure provide a method and apparatus for dynamically adjusting UL-DL configuration. In the method according to embodiments of the present invention, downlink traffic load and uplink traffic load for transmission between a BS and a UE in a TDD system may be obtained, a UL-DL traffic load relation may be determined based on the downlink traffic load and the uplink traffic load and a UL-DL configuration may be selected based on the UL-DL traffic load relation.

摘要翻译： 本公开的实施例提供了用于动态调整UL-DL配置的方法和装置。 在根据本发明的实施例的方法中，可以获得用于TDD系统中的BS与UE之间的传输的下行业务负载和上行流量负载，可以基于下行业务负载来确定UL-DL业务负载关系 并且可以基于UL-DL业务负载关系来选择上行链路业务负载和UL-DL配置。

公开(公告)号：US20140369281A1

公开(公告)日：2014-12-18

申请号：US14345126

申请日：2012-03-27

申请人： Dalin Zhu ,  Zhennian Sun ,  Yu Zhang ,  Gang Wang ,  Ming Lei

发明人： Dalin Zhu ,  Zhennian Sun ,  Yu Zhang ,  Gang Wang ,  Ming Lei

IPC分类号： H04W72/08 ,  H04L5/00

CPC分类号： H04W72/085 ,  H04L1/0021 ,  H04L1/0026 ,  H04L1/20 ,  H04L5/0058 ,  H04W72/1226

摘要： Embodiments of the disclosure provide methods and apparatuses for cancelling cross-subframe co-channel interference (CCI), the method comprising receiving a channel quality indicator (CQI) of a cross-subframe from a user equipment (UE), the cross-subframe is a downlink subframe that is interfered by an uplink subframe in a neighboring cell; determining if the UE should be scheduled during cross-subframes by comparing the CQI with an adaptive threshold; and scheduling the UE during the cross-subframes if the UE is determined to be scheduled. By means of determining the resources scheduling based on an adaptive threshold, CCI may be cancelled and the overall resource usage will be increased according to the present invention. Furthermore, the adaptive threshold scheme can be easily implemented in practice.

摘要翻译： 本公开的实施例提供了用于消除跨子帧同信道干扰（CCI）的方法和装置，该方法包括从用户设备（UE）接收跨子帧的信道质量指示符（CQI），跨子帧是 被相邻小区中的上行链路子帧干扰的下行链路子帧; 通过将所述CQI与自适应阈值进行比较来确定是否应在跨子帧期间调度所述UE; 以及如果所述UE被确定为被调度，则在所述跨子帧期间调度所述UE。 通过基于自适应阈值确定资源调度，可以取消CCI，并且根据本发明将增加总体资源使用。 此外，自适应阈值方案可以在实践中容易地实现。

公开(公告)号：US09030975B2

公开(公告)日：2015-05-12

申请号：US13702918

申请日：2010-12-20

申请人： Gang Wang ,  Zhennian Sun ,  Ming Lei

发明人： Gang Wang ,  Zhennian Sun ,  Ming Lei

IPC分类号： H04J1/00 ,  H04W72/08 ,  H04L5/00 ,  H04W72/12 ,  H04W72/04

CPC分类号： H04W72/085 ,  H04L5/0037 ,  H04W72/0453 ,  H04W72/1231

摘要： The present invention relates to method and apparatus for scheduling downlink transmission. According to an embodiment of the present invention, a method for scheduling downlink transmission in a wireless communication system is provided. The method comprises: scheduling, in a channel measurement sub-frame, user equipments in a cell according to feedback information that was most recently received from the user equipments, wherein in the channel measurement sub-frame, the user equipments calculate feedback information to be reported; and scheduling, in response to receipt of the feedback information, the user equipments based on a result of scheduling corresponding to the channel measurement sub-frame. According to an embodiment of the present invention, there is also provided a scheduling apparatus, base station device and corresponding computer program product.

摘要翻译： 本发明涉及用于调度下行链路传输的方法和装置。 根据本发明的实施例，提供了一种用于在无线通信系统中调度下行链路传输的方法。 该方法包括：根据最近从用户设备接收的反馈信息，在信道测量子帧中调度小区中的用户设备，其中在信道测量子帧中，用户设备计算反馈信息为 报道 以及响应于所述反馈信息的接收，基于与所述信道测量子帧相对应的调度结果来调度所述用户设备。 根据本发明的实施例，还提供了一种调度装置，基站装置和相应的计算机程序产品。

公开(公告)号：US20150110013A1

公开(公告)日：2015-04-23

申请号：US14345125

申请日：2012-03-29

申请人： Yu Zhang ,  Zhennian Sun ,  Gang Wang ,  Ming Lei

发明人： Yu Zhang ,  Zhennian Sun ,  Gang Wang ,  Ming Lei

IPC分类号： H04L1/18 ,  H04B7/04

CPC分类号： H04L1/1861 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0632 ,  H04L1/0015 ,  H04L1/0025 ,  H04L1/0034 ,  H04L1/0035

摘要： Embodiments of the invention relate to methods and apparatus for link adaptation in a preceded MIMO system. According to one embodiment, there is provided a method for link adaptation in a precoded MIMO system. The method comprises: receiving first channel quality information γCQI; with respect to at least one layer r in a plurality of layers in a link; obtaining a Hybrid Automatic Repeat Request (HARQ) scaling factor μr that is associated with a HARQ feedback; and interpreting the first channel quality information γCQI into second channel quality information {circumflex over (γ)}r based on at least the HARQ scaling factor μr, wherein the second channel quality information {circumflex over (γ)}r is for adapting the at least one layer r in the plurality of layers. According to another embodiment, there is provided an apparatus for link adaptation in a precoded MIMO system.

摘要翻译： 本发明的实施例涉及在先前MIMO系统中的链路自适应的方法和装置。 根据一个实施例，提供了一种用于预编码MIMO系统中的链路自适应的方法。 该方法包括：接收第一信道质量信息γCQI; 相对于链路中的多个层中的至少一个层r; 获得与HARQ反馈相关联的混合自动重传请求（HARQ）缩放因子μr; 并且基于至少所述HARQ缩放因子μr将所述第一信道质量信息γCQI解释为第二信道质量信息{circumflex over（γ）} r，其中，所述第二信道质量信息{r（r） 多个层中的至少一层r。 根据另一实施例，提供了一种用于预编码MIMO系统中的链路自适应的装置。

公开(公告)号：US20130265960A1

公开(公告)日：2013-10-10

申请号：US13879341

申请日：2011-02-28

申请人： Gang Wang ,  Yu Zhang ,  Zhennian Sun ,  Ming Lei

发明人： Gang Wang ,  Yu Zhang ,  Zhennian Sun ,  Ming Lei

IPC分类号： H04B7/06

CPC分类号： H04B7/0632 ,  H04B7/0617 ,  H04L1/0026 ,  H04L1/20

摘要： The present invention discloses a method and an apparatus for modifying a channel quality indication (CQI). This method may comprise: calculating a scaling factor for the channel quality indication based on uplink channel information and an antenna virtualization pre-coding scheme; and modifying the channel quality indication reported by user equipment by using the scaling factor. According to the technical solutions of the present invention, the antenna virtualization factor is considered in performing CQI modification and. Thus, this solution can overcome the problem of CQI mismatch, enhance the completeness and accuracy of CQI feedback, and improve the cell throughput performance and frequency utilization.

摘要翻译： 本发明公开了一种用于修改信道质量指示（CQI）的方法和装置。 该方法可以包括：基于上行链路信道信息和天线虚拟化预编码方案来计算信道质量指示的缩放因子; 并使用缩放因子修改用户设备报告的信道质量指示。 根据本发明的技术方案，在进行CQI修改时考虑天线虚拟化因素。 因此，该解决方案可以克服CQI失​​配问题，提高CQI反馈的完整性和准确性，提高小区吞吐量性能和频率利用率。

公开(公告)号：US20150009895A1

公开(公告)日：2015-01-08

申请号：US14345079

申请日：2012-03-27

申请人： Dalin Zhu ,  Zhennian Sun ,  Yu Zhang ,  Gang Wang ,  Ming Lei

发明人： Dalin Zhu ,  Zhennian Sun ,  Yu Zhang ,  Gang Wang ,  Ming Lei

IPC分类号： H04B1/10 ,  H04W24/08

CPC分类号： H04B1/1027 ,  H04B2001/1045 ,  H04L1/0026 ,  H04L5/0044 ,  H04W24/08 ,  H04W72/1231

摘要： Embodiments of the disclosure provide methods and apparatuses for cancelling cross-subframe co-channel interference (CCI). The method comprising receiving a channel quality indicators (CQI) of a cross-subframe from user equipment (UE), wherein the cross-subframe is a downlink subframe that is interfered by an uplink subframe in a neighboring cell; determining if the UE should be scheduled during cross-subframes based on at least the CQI; scheduling the UE during the cross-subframes if the UE is determined to be scheduled. By means of measuring and reporting CQIs on cross-subframe at UEs, base stations may determine more accurately if interferences at the cross-subframes are severe enough and if resources should be scheduled at the cross-subframe.

摘要翻译： 本公开的实施例提供了用于消除跨子帧同信道干扰（CCI）的方法和装置。 该方法包括从用户设备（UE）接收跨子帧的信道质量指示符（CQI），其中，所述跨子帧是被相邻小区中的上行链路子帧干扰的下行链路子帧; 至少基于所述CQI，确定是否应该在跨子帧期间调度所述UE; 如果确定UE被调度，则在跨子帧期间调度UE。 通过在UE的跨子帧上测量和报告CQI，如果跨子帧中的干扰足够严重且如果在跨子帧应该调度资源，则基站可以更准确地确定。