公开(公告)号：US20130301534A1

公开(公告)日：2013-11-14

申请号：US13944282

申请日：2013-07-17

Applicant: Apple Inc.

Inventor： Jun Yuan ,  Wen Tong ,  Mo-Han Fong ,  Jianming Wu

IPC: H04B7/04

CPC classification number: H04B7/0452 ,  H04B7/026 ,  H04B7/0697 ,  H04B7/15521

Abstract: A wireless communication system includes an intermediate node, a first node and a second node. A apparatus for implementing MIMO based network coding, comprises the first node transmitting first data to the intermediate node, and the second node transmitting second data to the intermediate node. Both the first node and the second node may use spatial multiplexing or time division multiplexing or frequency division multiplexing on a common/different resource. The intermediate node receives the transmissions from the first node and second node, and performs network coding on the first data and second data using a predefined network coding scheme to produce network coded information. The intermediate node transmits the network coded information to the first node and second node using multi-user MIMO and each first or second node receives the MIMO transmissions from the intermediate node and applies network decoding procedures to recover the first data and second data.

Abstract translation: 无线通信系统包括中间节点，第一节点和第二节点。 一种用于实现基于MIMO的网络编码的装置，包括：第一节点向中间节点发送第一数据，第二节点向第二节点发送第二数据。 第一节点和第二节点都可以在公共/不同资源上使用空间复用或时分复用或频分复用。 中间节点接收来自第一节点和第二节点的传输，并且使用预定义的网络编码方案对第一数据和第二数据执行网络编码以产生网络编码信息。 中间节点使用多用户MIMO将网络编码信息发送到第一节点和第二节点，并且每个第一或第二节点从中间节点接收MIMO传输，并应用网络解码过程来恢复第一数据和第二数据。

公开(公告)号：US20130122948A1

公开(公告)日：2013-05-16

申请号：US13735360

申请日：2013-01-07

Applicant: APPLE INC.

Inventor： Ming Jia ,  Jianglei Ma ,  Jianming Wu ,  Peiying Zhu ,  Wen Tong

IPC: H04W72/08

CPC classification number: H04W72/082 ,  H04B7/0417 ,  H04B7/0443 ,  H04B7/0452 ,  H04B7/0632 ,  H04W72/1231

Abstract: A wireless communication method and system using virtual MIMO (“V-MIMO”) are provided. Post processing signal to interference and noise ratios (“SINR”) for a plurality of signals corresponding to a plurality of mobile terminals arranged as a V-MIMO group are estimated. The one of the plurality of mobile terminals having the highest post processing SINR is selected. Wireless communication for the selected mobile terminal is scheduled. The signal corresponding to the selected mobile terminal is cancelled. Post processing signal to interference and noise ratios (“SINR”) for the signals corresponding to the remaining mobile terminals is re-estimated. The one of the remaining mobile terminals having the highest post processing SINR is selected. Wireless communication for the selected remaining mobile terminal is scheduled.

Abstract translation: 提供了一种使用虚拟MIMO（“V-MIMO”）的无线通信方法和系统。 估计与排列为V-MIMO组的多个移动终端对应的多个信号的后处理信号与干扰和噪声比（“SINR”）。 选择具有最高后处理SINR的多个移动终端中的一个。 安排所选移动终端的无线通信。 对应于所选移动终端的信号被取消。 重新估计对应于其余移动终端的信号的后处理信号与干扰和噪声比（“SINR”）。 选择具有最高后处理SINR的剩余移动终端中的一个。 调度所选择的剩余移动终端的无线通信。

公开(公告)号：US09572172B2

公开(公告)日：2017-02-14

申请号：US14944370

申请日：2015-11-18

Applicant: Apple Inc.

Inventor： Jianming Wu ,  Wen Tong ,  Peiying Zhu

IPC: H04W4/00 ,  H04W72/12 ,  H04L1/00 ,  H04L1/08 ,  H04L1/18 ,  H04L5/00 ,  H04W28/26 ,  H04W72/08

CPC classification number: H04W72/12 ,  H04L1/0009 ,  H04L1/08 ,  H04L1/1867 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/006 ,  H04L5/0064 ,  H04W28/26 ,  H04W72/085 ,  H04W72/1263

Abstract: The present invention provides a technique for scheduling data, and in particular, scheduling real-time or voice data for transmissions during a transmit time interval in a multi-carrier communication environment. For each transmit time interval, channel condition indicia for multiple users is determined, and an iterative scheduling process is then implemented based in part on the channel condition indicia. The iterative scheduling initially pre-assigns select tones for each of the remaining users that have not been permanently assigned tones for the given transmit time interval. Next, the remaining user having the least favorable channel conditions is selected as an active user. The newly selected active user is then permanently assigned the select tones that were initially pre-assigned to that particular user. The permanently assigned tones are removed from consideration, and the process is repeated until all the remaining users are permanently assigned unique tones for scheduling.

Abstract translation: 本发明提供了一种用于调度数据的技术，特别是在多载波通信环境中的传输时间间隔期间调度实时或话音数据以进行传输。 对于每个发送时间间隔，确定多个用户的信道条件标记，并且部分地基于信道条件标记来实现迭代调度过程。 迭代调度最初为给定发送时间间隔未被永久分配的音调的每个剩余用户预先分配选择音调。 接下来，选择具有最不利条件的剩余用户作为活动用户。 然后，将新选择的活动用户永久分配给最初预分配给该特定用户的选择音。 从考虑中删除永久分配的音调，并重复该过程，直到所有剩余用户被永久分配唯一的音调进行调度。

公开(公告)号：US20160081104A1

公开(公告)日：2016-03-17

申请号：US14944370

申请日：2015-11-18

Applicant: Apple Inc.

Inventor： Jianming Wu ,  Wen Tong ,  Peiying Zhu

IPC: H04W72/12 ,  H04L5/00

CPC classification number: H04W72/12 ,  H04L1/0009 ,  H04L1/08 ,  H04L1/1867 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/006 ,  H04L5/0064 ,  H04W28/26 ,  H04W72/085 ,  H04W72/1263

Abstract: The present invention provides a technique for scheduling data, and in particular, scheduling real-time or voice data for transmissions during a transmit time interval in a multi-carrier communication environment. For each transmit time interval, channel condition indicia for multiple users is determined, and an iterative scheduling process is then implemented based in part on the channel condition indicia. The iterative scheduling initially pre-assigns select tones for each of the remaining users that have not been permanently assigned tones for the given transmit time interval. Next, the remaining user having the least favorable channel conditions is selected as an active user. The newly selected active user is then permanently assigned the select tones that were initially pre-assigned to that particular user. The permanently assigned tones are removed from consideration, and the process is repeated until all the remaining users are permanently assigned unique tones for scheduling.

Abstract translation: 本发明提供了一种用于调度数据的技术，特别是在多载波通信环境中的传输时间间隔期间调度实时或话音数据以进行传输。 对于每个发送时间间隔，确定多个用户的信道条件标记，并且部分地基于信道条件标记来实现迭代调度过程。 迭代调度最初为给定发送时间间隔未被永久分配的音调的每个剩余用户预先分配选择音调。 接下来，选择具有最不利条件的剩余用户作为活动用户。 然后，将新选择的活动用户永久分配给最初预分配给该特定用户的选择音。 从考虑中删除永久分配的音调，并重复该过程，直到所有剩余用户被永久分配唯一的音调进行调度。

公开(公告)号：US09173114B2

公开(公告)日：2015-10-27

申请号：US13848317

申请日：2013-03-21

Applicant: Apple Inc.

Inventor： Jianming Wu ,  Wen Tong ,  Peiying Zhu

IPC: H04K1/10 ,  H04L27/28 ,  H04W24/02 ,  H04L1/20 ,  H04L5/02 ,  H04L27/26 ,  H04B17/309 ,  H04B17/382 ,  H04L1/00 ,  H04L1/06 ,  H04B17/26 ,  H04B17/336 ,  H04B17/345

CPC classification number: H04B17/336 ,  H04B17/26 ,  H04B17/309 ,  H04B17/345 ,  H04B17/382 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0643 ,  H04L1/20 ,  H04L5/023 ,  H04L27/2647 ,  H04W24/02 ,  H04W24/08

Abstract: A new method of performing interference estimation to allow the data packets to be efficiently delivered in an OFDM system. The interference estimation is performed on average over each frame for each mobile station individually in both frequency and time domains. Based on the estimated interference, the CIR can be determined by the BTS based on channel response estimates made by the BTS, or by the MS based on channel response estimates made for the uplink assuming a symmetrical channel. Numerical results show that the CIR estimation error could be very small if a sub-channel is considered as the minimum transmission unit. In terms of the aggregate throughput, the interference estimation method can provide a significant gain.

Abstract translation: 一种执行干扰估计以允许在OFDM系统中有效地传送数据分组的新方法。 对于每个移动台，在频域和时域中分别对每个帧平均执行干扰估计。 基于估计的干扰，可以由BTS基于由BTS做出的信道响应估计来确定CIR，或者基于对假设对称信道的针对上行链路的信道响应估计由MS确定CIR。 数值结果表明，如果将子信道视为最小传输单元，则CIR估计误差可能非常小。 在总吞吐量方面，干扰估计方法可以提供显着的增益。

公开(公告)号：US20130265897A1

公开(公告)日：2013-10-10

申请号：US13848317

申请日：2013-03-21

Applicant: Apple Inc.

Inventor： Jianming Wu ,  Wen Tong ,  Peiying Zhu

IPC: H04W24/02

CPC classification number: H04B17/336 ,  H04B17/26 ,  H04B17/309 ,  H04B17/345 ,  H04B17/382 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0643 ,  H04L1/20 ,  H04L5/023 ,  H04L27/2647 ,  H04W24/02 ,  H04W24/08

Abstract: A new method of performing interference estimation to allow the data packets to be efficiently delivered in an OFDM system. The interference estimation is performed on average over each frame for each mobile station individually in both frequency and time domains. Based on the estimated interference, the CIR can be determined by the BTS based on channel response estimates made by the BTS, or by the MS based on channel response estimates made for the uplink assuming a symmetrical channel. Numerical results show that the CIR estimation error could be very small if a sub-channel is considered as the minimum transmission unit. In terms of the aggregate throughput, the interference estimation method can provide a significant gain.

Abstract translation: 一种执行干扰估计以允许在OFDM系统中有效地传送数据分组的新方法。 对于每个移动台，在频域和时域中分别对每个帧平均执行干扰估计。 基于估计的干扰，可以由BTS基于由BTS做出的信道响应估计来确定CIR，或者基于对假设对称信道的针对上行链路的信道响应估计由MS确定CIR。 数值结果表明，如果将子信道视为最小传输单元，则CIR估计误差可能非常小。 在总吞吐量方面，干扰估计方法可以提供显着的增益。

公开(公告)号：US10965389B2

公开(公告)日：2021-03-30

申请号：US15869863

申请日：2018-01-12

Applicant: APPLE INC.

Inventor： Jianming Wu ,  Wen Tong ,  Peiying Zhu

IPC: H04B17/336 ,  H04B17/309 ,  H04B17/382 ,  H04L1/00 ,  H04L1/20 ,  H04L5/02 ,  H04L27/26 ,  H04W24/02 ,  H04W24/08 ,  H04B17/26 ,  H04B17/345 ,  H04L1/06

Abstract: A new method of performing interference estimation to allow the data packets to be efficiently delivered in an OFDM system. The interference estimation is performed on average over each frame for each mobile station individually in both frequency and time domains. Based on the estimated interference, the CIR can be determined by the BTS based on channel response estimates made by the BTS, or by the MS based on channel response estimates made for the uplink assuming a symmetrical channel. Numerical results show that the CIR estimation error could be very small if a sub-channel is considered as the minimum transmission unit. In terms of the aggregate throughput, the interference estimation method can provide a significant gain.

公开(公告)号：US10686512B2

公开(公告)日：2020-06-16

申请号：US15796071

申请日：2017-10-27

Applicant: APPLE INC.

Inventor： Jianglei Ma ,  Ming Jia ,  Jianming Wu ,  Peiying Zhu ,  Wen Tong ,  Evelyne Le Strat ,  Sarah Boumendil ,  Moussa Abdi

IPC: H04B7/06 ,  H04B7/0452

Abstract: Spatial multiplexing and transmit diversity can improve the capacity of a wireless communication system. The system and method adapts communication schemes for communication systems with multiple antennas utilizing at least two transmission modes. The at least two transmission modes can, but are not necessarily, used for uplink communications. The two transmission modes may be chosen from the group consisting of a single antenna mode, a diversity mode a spatial multiplexed mode and a mixed diversity and spatial multiplexed mode. The at least two transmission modes may involve adaptation among multiple transmitters. At least one receiver may indicate a transmission mode to be used by a transmitter for a subsequent transmission. A transmitter may determine a transmission mode to be used for a subsequent transmission. The transmission mode can be based on channel sounding.

公开(公告)号：US20180069615A1

公开(公告)日：2018-03-08

申请号：US15796071

申请日：2017-10-27

Applicant: APPLE INC.

Inventor： Jianglei Ma ,  Ming Jia ,  Jianming Wu ,  Peiying Zhu ,  Wen Tong ,  Evelyne Le Strat ,  Sarah Boumendil ,  Moussa Abdi

IPC: H04B7/06

Abstract: Spatial multiplexing and transmit diversity can improve the capacity of a wireless communication system. The system and method adapts communication schemes for communication systems with multiple antennas utilizing at least two transmission modes. The at least two transmission modes can, but are not necessarily, used for uplink communications. The two transmission modes may be chosen from the group consisting of a single antenna mode, a diversity mode a spatial multiplexed mode and a mixed diversity and spatial multiplexed mode. The at least two transmission modes may involve adaptation among multiple transmitters. At least one receiver may indicate a transmission mode to be used by a transmitter for a subsequent transmission. A transmitter may determine a transmission mode to be used for a subsequent transmission. The transmission mode can be based on channel sounding.

公开(公告)号：US09871603B2

公开(公告)日：2018-01-16

申请号：US14923090

申请日：2015-10-26

Applicant: APPLE INC.

Inventor： Jianming Wu ,  Wen Tong ,  Peiying Zhu

IPC: H04K1/10 ,  H04L27/28 ,  H04B17/336 ,  H04L1/00 ,  H04L1/20 ,  H04L5/02 ,  H04L27/26 ,  H04W24/02 ,  H04B17/309 ,  H04B17/382 ,  H04W24/08 ,  H04L1/06 ,  H04B17/26 ,  H04B17/345

CPC classification number: H04B17/336 ,  H04B17/26 ,  H04B17/309 ,  H04B17/345 ,  H04B17/382 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0643 ,  H04L1/20 ,  H04L5/023 ,  H04L27/2647 ,  H04W24/02 ,  H04W24/08

Abstract: A new method of performing interference estimation to allow the data packets to be efficiently delivered in an OFDM system. The interference estimation is performed on average over each frame for each mobile station individually in both frequency and time domains. Based on the estimated interference, the CIR can be determined by the BTS based on channel response estimates made by the BTS, or by the MS based on channel response estimates made for the uplink assuming a symmetrical channel. Numerical results show that the CIR estimation error could be very small if a sub-channel is considered as the minimum transmission unit. In terms of the aggregate throughput, the interference estimation method can provide a significant gain.