公开(公告)号：US09036460B2

公开(公告)日：2015-05-19

申请号：US13963983

申请日：2013-08-09

Applicant: FutureWei Technologies, Inc.

Inventor： Amine Maaref

IPC: H04J11/00 ,  H04L12/28 ,  H04W4/00 ,  H04B7/208 ,  H04B1/10 ,  H04L25/02

CPC classification number: H04L25/028 ,  H04B7/024 ,  H04J11/0023 ,  H04J11/0056 ,  H04L25/0204 ,  H04L25/03343 ,  H04L25/03904 ,  H04W16/14

Abstract: Embodiments are provided for a cooperative cross-tier precoding (CTP) and intra-tier precoding (ITP) scheme for two-tier networks. The cooperative precoding scheme allows exploitation of extra transmit dimensions at the second-tier network, thereby increasing the achievable throughput at the second-tier network. The embodiments allow significant increase in throughput of the second-tier network due to both CTP between the second-tier network and the first-tier network, and efficient ITP between the second-tier network transmitters. The increase in transmit dimension allows for efficient linear inra-tier precoding, which significantly reduces the intra-tier interference. A processor coupled to the second-tier network transmitters is configured to perform CTP of transmit signals in the second-tier network for cancelling signal interference from the second-tier network transmitters to a first-tier network receiver, thereby generating CTP matrix information. The processor then performs, using the CTP matrix information, ITP for reducing intra-signal interference from the second-tier transmitters to corresponding second-tier receivers.

Abstract translation: 提供了用于双层网络的协作跨层预编码（CTP）和层内预编码（ITP）方案的实施例。 协作预编码方案允许在第二层网络上利用额外的传输维度，从而增加第二层网络可实现的吞吐量。 这些实施例允许由于第二层网络和第一层网络之间的CTP以及第二层网络发射机之间的有效ITP而导致的第二层网络的吞吐量的显着增加。 传输尺寸的增加允许有效的线性层内预编码，这显着降低了层内干扰。 耦合到第二层网络发射机的处理器被配置为在第二层网络中执行发射信号的CTP，以消除来自第二层网络发射机到第一层网络接收机的信号干扰，由此产生CTP矩阵信息。 然后，处理器使用CTP矩阵信息执行ITP，以将来自第二层发射机的信号内干扰降低到相应的二级接收机。

公开(公告)号：US20150057010A1

公开(公告)日：2015-02-26

申请号：US13973523

申请日：2013-08-22

Applicant: FutureWei Technologies, Inc.

Inventor： Keyvan Zarifi ,  Mohammadhadi Baligh ,  Jianglei Ma ,  Amine Maaref

IPC: H04W72/08 ,  H04W72/12

CPC classification number: H04W72/082 ,  H04B7/024 ,  H04B7/0617 ,  H04W72/1231

Abstract: Embodiments are provided to serve user equipments (UEs) that experience, for example persistently, inter-transmission point group (TPG) interference in a wireless or cellular network. The embodiments include steps to serve edge UEs (EUs) such as persistent EUs (PEUs) using a set of transmission points (TPs) in one or more TPGs. The selected set of TPs used for serving the EUs or PEUs are dynamically determined based on a UE-centric metric. The metric involves the PEUs and surrounding UEs. The UE-centric metric is used to partition the network to multiple TPG sets. For each one of multiple assigned resource units (RUs), a TPG set that maximizes or improves a network-wide utility is used for scheduling transmissions. Further, for each RU, the UEs are associated with an optimized or improved TPG in the used TPG set.

Abstract translation: 提供实施例来为在无线或蜂窝网络中经历例如持续地传输间点组（TPG）干扰的用户设备（UE）。 实施例包括在一个或多个TPG中使用一组传输点（TP）来服务边缘UE（EU）的步骤，例如持久EU（PEU）。 用于服务EU或PEU的所选TP集合基于以UE为中心的度量来动态地确定。 该度量涉及PEU和周围的UE。 以UE为中心的度量用于将网络划分到多个TPG集合。 对于多个分配的资源单元（RU）中的每一个，使用最大化或改进网络实用程序的TPG集合用于调度传输。 此外，对于每个RU，UE与所使用的TPG集合中的优化或改进的TPG相关联。

公开(公告)号：US20150003547A1

公开(公告)日：2015-01-01

申请号：US13929493

申请日：2013-06-27

Applicant: FutureWei Technologies, Inc.

Inventor： Amine Maaref

IPC: H04B7/04 ,  H04W24/02

CPC classification number: H04B7/0426 ,  H04W24/02

Abstract: Embodiments are provided for interference avoidance based on signal alignment for multiple-input and multiple-output (MIMO) with orthogonal frequency-division multiplexing (OFDM) or OFDM access (OFDMA). The embodiments include a signal alignment scheme using both spatial and frequency dimensions. The scheme includes an existing link between an existing transmitter and an existing receiver, and a new link between a new transmitter and a new receiver. The new transmitter determines combinations of space dimensions and frequency dimensions unused in transmission on an existing link, and assigns signals for transmission on the new link at one or more of the unused combinations of space dimensions and frequency dimensions. The existing receiver is further configured to reallocate its power to release, using a greedy search algorithm, a small eigenvalue algorithm, or a best throughput algorithm, a null space of some space dimensions to the new transmitter.

Abstract translation: 基于具有正交频分复用（OFDM）或OFDM接入（OFDMA）的多输入和多输出（MIMO）的信号对准提供了用于干扰避免的实施例。 实施例包括使用空间和频率尺寸的信号对准方案。 该方案包括现有发射机和现有接收机之间的现有链路，以及新发射机和新接收机之间的新链路。 新的发射机确定在现有链路上的传输中未使用的空间尺寸和频率尺寸的组合，并且在空间维度和频率维度的一个或多个未使用的组合中在新链路上分配用于传输的信号。 现有的接收机还被配置为重新分配其功率，以使用贪心搜索算法，向新发射机释放一些空间维度的小特征值算法或最佳吞吐量算法。

公开(公告)号：US20140273862A1

公开(公告)日：2014-09-18

申请号：US14106682

申请日：2013-12-13

Applicant: FutureWei Technologies, Inc.

Inventor： Amine Maaref ,  Jianglei Ma ,  Peiying Zhu

IPC: H04W72/08

CPC classification number: H04J11/0026 ,  H04J11/0053 ,  H04W72/1226 ,  H04W72/1278 ,  H04W76/14 ,  H04W88/04

Abstract: Soft information for achieving interference cancellation in downlink transmissions can be communicated over device-to-device (D2D) links, thereby allowing paired user equipments (UEs) to receive downlink transmissions over the same radio resources. More specifically, paired UEs that receive transmissions over the same time-frequency resources may exchange soft or hard information over D2D links in order to facilitate interference cancellation. The D2D links may be unidirectional or bidirectional, and may be established over in-band or out-of-band resources. Paired UEs may be in the same or different cells, and may receive their respective transmissions from the same or different transmit point. UEs may be paired with one another based on various criteria, e.g., interference cancellation capabilities, scheduling metrics, etc.

Abstract translation: 用于实现下行链路传输中的干扰消除的软信息可以通过设备到设备（D2D）链路传送，从而允许配对的用户设备（UE）通过相同的无线电资源接收下行链路传输。 更具体地，在相同的时间 - 频率资源上接收传输的配对UE可以通过D2D链路交换软或硬信息，以便于干扰消除。 D2D链路可以是单向的或双向的，并且可以通过带内或带外资源建立。 成对的UE可以在相同或不同的小区中，并且可以从相同或不同的发射点接收它们各自的传输。 UE可以基于各种标准来彼此配对，例如干扰消除能力，调度度量等。

公开(公告)号：US20140173372A1

公开(公告)日：2014-06-19

申请号：US13829188

申请日：2013-03-14

Applicant: FUTUREWEI TECHNOLOGIES, INC.

Inventor： Amine Maaref ,  Mohammadhadi Baligh ,  Jianglei Ma

IPC: H04L1/18

CPC classification number: H04L1/08 ,  H03M13/1102 ,  H03M13/2906 ,  H04L1/0076 ,  H04L1/1607 ,  H04L1/1816 ,  H04L1/1829 ,  H04L1/188 ,  H04L12/189 ,  H04L2001/0093 ,  H04L2001/0097 ,  H04W76/14

Abstract: System and method embodiments are provided to support network communications with groups of UEs. The embodiments include a two-level group-based hybrid-automatic repeat request (HARQ) mechanism and acknowledgement (ACK)/negative ACK (NACK) feedback. An embodiment method includes receiving, at a UE within a virtual multi-point (ViMP) comprising UEs, a data packet for a target UE (TUE) that is broadcasted from a base station (BS) to the ViMP node, decode the data packet, and upon successfully decoding the data packet, broadcasting the data packet to the UEs within the ViMP node until a timer pre-established by the BS expires or an ACK message is received from the TUE or the ViMP node. In an embodiment, broadcasted data received in the ViMP node is re-broadcasted upon receiving a negative acknowledgment (NACK) message from the TUE, a beacon UE, or any of the UEs within the ViMP node.

Abstract translation: 提供系统和方法实施例以支持与UE组的网络通信。 这些实施例包括基于二级组的混合自动重传请求（HARQ）机制和确认（ACK）/否定ACK（NACK）反馈。 一种实施方式包括在由包括UE的虚拟多点（ViMP）内的UE处接收从基站（BS）向ViMP节点广播的目标UE（TUE）的数据分组，对数据分组进行解码 并且在成功解码数据分组之后，将数据分组广播到ViMP节点内的UE，直到由BS预先建立的定时器到期或从TUE或ViMP节点接收到ACK消息。 在一个实施例中，在接收到来自TUE，信标UE或ViMP节点内的任何UE的否定确认（NACK）消息时，在ViMP节点中接收的广播数据被重新广播。

公开(公告)号：US20140169239A1

公开(公告)日：2014-06-19

申请号：US13862168

申请日：2013-04-12

Applicant: FUTUREWEI TECHNOLOGIES, INC.

Inventor： Amine Maaref ,  Mohammadhadi Baligh ,  Jianglei Ma

IPC: H04W72/04

CPC classification number: H04W72/0446 ,  H04J13/00 ,  H04L5/0016 ,  H04L5/0026 ,  H04L5/14 ,  H04W72/0453

Abstract: System and method embodiments are provided to achieve efficient Direct Mobile Communications (DMC) and device-to-device (D2D) communications for terminal based groups with improved spectrum efficiency, reduced interference, and virtual full duplex operation mode. The embodiments include a distributed mechanism for D2D communications that enables one or more cooperating UEs (CUEs) to help one or more target UEs (TUEs) with limited additional signaling overhead and relatively simple implementation. The mechanism comprises a grantless multi-dimensional multiplexing scheme that uses low density spreading (LDS) over time, frequency, and/or space domains to enable data forwarding between multiple half-duplex terminals or UEs while allowing the UEs to operate in virtual full-duplex mode.

Abstract translation: 提供系统和方法实施例以实现具有改进的频谱效率，减少的干扰和虚拟全双工操作模式的基于终端的组的有效的直接移动通信（DMC）和设备到设备（D2D）通信。 实施例包括用于D2D通信的分布式机制，其使得一个或多个协作UE（CUE）能够以有限的附加信令开销和相对简单的实现来帮助一个或多个目标UE（TUE）。 该机制包括无限多维复用方案，其使用低密度扩展（LDS）随时间，频率和/或空间域来实现多个半双工终端或UE之间的数据转发，同时允许UE以虚拟全双工终端 双工模式。

公开(公告)号：US20140098731A1

公开(公告)日：2014-04-10

申请号：US13646549

申请日：2012-10-05

Applicant: FUTUREWEI TECHNOLOGIES, INC.

Inventor： Amine Maaref ,  Mohammadhadi Baligh ,  Jianglei Ma

IPC: H04W4/06

CPC classification number: H04W72/042 ,  H04L12/189 ,  H04L61/2069 ,  H04W72/121 ,  H04W76/40 ,  H04W88/04

Abstract: Virtualized group-wise communications between a wireless network and a plurality of user equipments (UEs) are supported using UE cooperation. UE cooperation includes receiving, at a cooperating UE (CUE), downlink information from the wireless network destined for a target UE (TUE) and associated with a group identifier (ID). The group ID indicates a virtual multi-point (ViMP) node that includes the TUE and the CUE. The UE cooperation also includes sending the downlink information to the TUE. The UE or UE component can have a processor configured to forward between the wireless network and a TUE at least some information that is associated with a group ID indicating a ViMP node that groups the TUE and the UE.

Abstract translation: 使用UE协作支持无线网络与多个用户设备（UE）之间的虚拟化的分组通信。 UE协作包括在协作UE（CUE）处接收来自目标UE（TUE）的无线网络并与组标识符（ID）相关联的下行链路信息。 组ID指示包括TUE和CUE的虚拟多点（ViMP）节点。 UE合作还包括向TUE发送下行链路信息。 UE或UE组件可以具有被配置为在无线网络和TUE之间转发至少一些与指示对TUE和UE进行分组的ViMP节点的组ID相关联的信息的处理器。

公开(公告)号：US20160013889A1

公开(公告)日：2016-01-14

申请号：US14860076

申请日：2015-09-21

Applicant: Futurewei Technologies, Inc.

Inventor： Yu Cao ,  Amine Maaref ,  Mohammadhadi Baligh ,  Jianglei Ma

IPC: H04L1/00 ,  H03M13/09 ,  G06F11/10

CPC classification number: H04L1/0061 ,  G06F11/1004 ,  H03M13/095 ,  H03M13/2957 ,  H03M13/3723 ,  H03M13/612 ,  H04L1/06 ,  H04L1/1819 ,  H04L25/067 ,  H04L27/3416 ,  H04L2001/0097

Abstract: An embodiment method includes receiving, by a first user equipment (UE), a message, for a second UE, transmitted over a plurality of resource blocks (RBs) on behalf of a communications controller and determining a plurality of log-likelihood ratios (LLRs) in accordance with the received plurality of RBs. The method also includes transmitting, a subset of the determined LLRs to the second UE.

Abstract translation: 一种实施方式包括由第一用户设备（UE）接收代表通信控制器通过多个资源块（RB）发送的用于第二UE的消息，并且确定多个对数似然比（LLR） ）根据所接收的多个RB。 该方法还包括将确定的LLR的子集发送到第二UE。

公开(公告)号：US09148253B2

公开(公告)日：2015-09-29

申请号：US14027919

申请日：2013-09-16

Applicant: FutureWei Technologies, Inc.

Inventor： Yu Cao ,  Amine Maaref ,  Mohammadhadi Baligh ,  Jianglei Ma

IPC: H04L1/18 ,  H04L27/34 ,  H04L25/03 ,  H04L1/00 ,  H04L25/06 ,  G06F11/10 ,  H03M13/09 ,  H03M13/29 ,  H03M13/37 ,  H03M13/00

CPC classification number: H04L1/0061 ,  G06F11/1004 ,  H03M13/095 ,  H03M13/2957 ,  H03M13/3723 ,  H03M13/612 ,  H04L1/06 ,  H04L1/1819 ,  H04L25/067 ,  H04L27/3416 ,  H04L2001/0097

Abstract: User equipment (UE) cooperation can be improved by relaying partial soft information to target UEs. More specifically, a cooperating UE may relay a subset of log-likelihood ratios (LLRs) to the target UE. The subset of LLRs may correspond to fewer than all resource blocks of the original transmission. This may allow UE cooperation to be effective when the cooperating UE was only able to decode a portion of the original transmission. This may also allow fewer network resources (e.g., bandwidth, etc.) to be used when the target UE does not need all of the soft information to decode the original transmission. Multiple cooperating UEs can provide different subsets of LLRs, and the subsets may or may not overlap with one another.

Abstract translation: 可以通过将部分软信息中继到目标UE来提高用户设备（UE）协作。 更具体地，协作UE可以将对数似然比（LLR）的子集中继到目标UE。 LLR的子集可以对应于比原始传输的所有资源块少。 这可以允许UE协作在协作的UE仅能够对原始传输的一部分进行解码时有效。 当目标UE不需要所有软信息来解码原始传输时，这也可以允许使用更少的网络资源（例如，带宽等）。 多个合作的UE可以提供不同的LLR子集，并且子集可以或可以不彼此重叠。

公开(公告)号：US20150171953A1

公开(公告)日：2015-06-18

申请号：US14106483

申请日：2013-12-13

Applicant: FutureWei Technologies, Inc.

Inventor： Petar Djukic ,  Amine Maaref ,  Hang Zhang

IPC: H04B7/155 ,  H04W40/16 ,  H04W40/20 ,  H04W4/00 ,  H04W28/24

CPC classification number: H04B7/15507 ,  H04L41/12 ,  H04W4/001 ,  H04W16/26 ,  H04W28/24 ,  H04W40/16 ,  H04W40/205 ,  H04W84/047 ,  H04W88/04

Abstract: An embodiment method includes selecting, by a network infrastructure manager, a first user equipment (UE) as a destination UE and selecting a second UE as a relay UE for the destination UE. The method further includes negotiating installation of a virtual range extender (vREX) UE on the destination UE, and negotiating installation of a vREX forwarding agent (FA) on the relay UE. The vREX FA is configured to act as a FA for the vREX UE.

Abstract translation: 一种实施方式包括由网络基础设施管理器选择作为目的地UE的第一用户设备（UE），并且选择第二UE作为目的地UE的中继UE。 该方法还包括在目的地UE上协商虚拟扩展器（vREX）UE的安装，以及在中继UE上协商安装vREX转发代理（FA）。 vREX FA配置为充当vREX UE的FA。