公开(公告)号：US20140105118A1

公开(公告)日：2014-04-17

申请号：US13650658

申请日：2012-10-12

Applicant: FUTUREWEI TECHNOLOGIES, INC.

Inventor： Gamini Senarath ,  Hang Zhang ,  Liqing Zhang ,  Ho-Ting Cheng

IPC: H04W72/12

CPC classification number: H04W52/244 ,  H04B17/345 ,  H04W52/146 ,  H04W72/1231

Abstract: Methods and systems for facilitating uplink power control (PC) and scheduling in a wireless network are provided. In one example, common interference patterns are obtained from long term channel statistics, and used to perform local PC and scheduling by distributed base stations (eNBs). In some implementations, the common interference patterns are obtained through statistical narrowing techniques that identify common ones out of a plurality of potential interference patterns. The common interference patterns may specify maximum interference thresholds and/or individual eNB-to-eNB interference thresholds which may govern the local PC and scheduling decisions of the distributed eNBs.

Abstract translation: 提供了用于促进无线网络中的上行链路功率控制（PC）和调度的方法和系统。 在一个示例中，从长期信道统计获得公共干扰模式，并且用于由分布式基站（eNB）执行本地PC和调度。 在一些实现中，通过识别多个潜在干扰模式中的常见干扰模式的统计窄化技术来获得公共干扰模式。 常见的干扰模式可以指定最大干扰阈值和/或可以管理本地PC的分布式eNB的各个eNB到eNB的干扰阈值和调度决策。

公开(公告)号：US20150351093A1

公开(公告)日：2015-12-03

申请号：US14823873

申请日：2015-08-11

Applicant: Futurewei Technologies, Inc.

Inventor： Kelvin Kar Kin Au ,  Jianglei Ma ,  Liqing Zhang ,  Zhihang Yi ,  Hosein Nikopour

IPC: H04W72/04 ,  H04W28/02

CPC classification number: H04W72/0446 ,  H04W28/0205 ,  H04W72/042 ,  H04W88/08

Abstract: Methods and devices are provided for communicating data in a wireless channel. In one example, a method includes adapting the transmission time interval (TTI) length of transport container for transmitting data in accordance with a criteria. The criteria may include (but is not limited to) a latency requirement of the data, a buffer size associated with the data, a mobility characteristic of a device that will receive the data. The TTI lengths may be manipulated for a variety of reasons, such as for reducing overhead, satisfy quality of service (QoS) requirements, maximize network throughput, etc. In some embodiments, TTIs having different TTI lengths may be carried in a common radio frame. In other embodiments, the wireless channel may partitioned into multiple bands each of which carrying (exclusively or otherwise) TTIs having a certain TTI length.

Abstract translation: 提供了用于在无线信道中传送数据的方法和设备。 在一个示例中，一种方法包括根据标准调整用于传输数据的传输容器的传输时间间隔（TTI）长度。 标准可以包括（但不限于）数据的等待时间要求，与数据相关联的缓冲器大小，将接收数据的设备的移动特性。 TTI长度可以由于各种原因被操纵，例如用于减少开销，满足服务质量（QoS）要求，最大化网络吞吐量等。在一些实施例中，具有不同TTI长度的TTI可以在公共无线电帧 。 在其他实施例中，无线信道可以被划分成多个带，每个频带承载具有一定TTI长度的（专门或另外）TTI。

公开(公告)号：US20150188650A1

公开(公告)日：2015-07-02

申请号：US14582951

申请日：2014-12-24

Applicant: Futurewei Technologies, Inc.

Inventor： Kelvin Kar Kin Au ,  Liqing Zhang ,  Jianglei Ma

IPC: H04J3/16 ,  H04L5/00 ,  H04W72/00

CPC classification number: H04J3/1694 ,  H04L5/0005 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0014 ,  H04L5/0053 ,  H04L5/0094 ,  H04L5/22 ,  H04W72/005

Abstract: System and method embodiments are disclosed to provide mechanisms that allow adaptive transmission time interval (TTI) coexistence in Long Term Evolution (LTE) and fifth generation (5G) cellular systems. In accordance with an embodiment, a method for an adaptive TTI coexistence mechanism includes allocating, by a network controller, a LTE TTI at a first bandwidth. The first bandwidth is smaller than an available system bandwidth and is centered around a carrier frequency at a center of the available system bandwidth. The method further includes broadcasting the first bandwidth in LTE system information messages, allocating adaptive TTIs in the available system bandwidth outside the first bandwidth, and broadcasting adaptive TTI bandwidth partitioning information to adaptive TTI-capable terminals.

Abstract translation: 公开了系统和方法实施例以提供允许长期演进（LTE）和第五代（5G）蜂窝系统中的自适应传输时间间隔（TTI）共存的机制。 根据实施例，一种用于自适应TTI共存机制的方法包括：由网络控制器以第一带宽分配LTE TTI。 第一个带宽小于可用系统带宽，并以可用系统带宽中心的载波频率为中心。 该方法还包括在LTE系统信息消息中广播第一带宽，在第一带宽之外的可用系统带宽中分配自适应TTI，以及向自适应TTI能力终端广播自适应TTI带宽划分信息。

公开(公告)号：US20140254544A1

公开(公告)日：2014-09-11

申请号：US13790673

申请日：2013-03-08

Applicant: FUTUREWEI TECHNOLOGIES, INC.

Inventor： Kelvin Kar Kin Au ,  Hosein Nikopour ,  Petar Djukic ,  Zhihang Yi ,  Alireza Bayesteh ,  Jianglei Ma ,  Mohammadhadi Baligh ,  Liqing Zhang

IPC: H04W72/04

CPC classification number: H04W72/1268 ,  H04L1/0038 ,  H04L1/1812 ,  H04L1/1861 ,  H04L5/0005 ,  H04L5/0033 ,  H04L5/0041 ,  H04L5/0048 ,  H04L27/2613 ,  H04W72/02 ,  H04W72/042 ,  H04W74/08 ,  H04W74/0825

Abstract: A method embodiment includes implementing, by a base station (BS), a grant-free uplink transmission scheme. The grant-free uplink transmission scheme defines a first contention transmission unit (CTU) access region in a time-frequency domain, defines a plurality of CTUs, defines a default CTU mapping scheme by mapping at least some of the plurality of CTUs to the first CTU access region, and defines a default user equipment (UE) mapping scheme by defining rules for mapping a plurality of UEs to the plurality of CTUs.

Abstract translation: 方法实施例包括由基站（BS）实现无授权的上行链路传输方案。 无授权的上行链路传输方案定义时域中的第一争用传输单元（CTU）接入区，定义多个CTU，通过将多个CTU中的至少一些映射到第一个CTU来定义默认CTU映射方案 CTU接入区域，并且通过定义用于将多个UE映射到多个CTU的规则来定义默认用户设备（UE）映射方案。

公开(公告)号：US20140192767A1

公开(公告)日：2014-07-10

申请号：US13911716

申请日：2013-06-06

Applicant: FutureWei Technologies, Inc.

Inventor： Kelvin Kar Kin Au ,  Jianglei Ma ,  Hosein Nikopour ,  Alireza Bayesteh ,  Petar Djukic ,  Liqing Zhang ,  Peiying Zhu

IPC: H04W72/04 ,  H04W74/08

CPC classification number: H04W72/0413 ,  H04L1/0045 ,  H04W72/042 ,  H04W72/0466 ,  H04W74/0866

Abstract: A grant-free transmission mode may be used to communicate small traffic transmissions to reduce overhead and latency. The grant-free transmission mode may be used in downlink and uplink data channels of a wireless network. In the downlink channel, a base station transmits packets to a group of UEs in a search space without communicating any transmission code assignments to the UEs. The UEs receive the downlink packets using blind detection. In the uplink channel, UEs transmit packets in an access space using assigned access codes which are either independently derived by the UEs or otherwise communicated by the base station using a slow-signaling channel. Hence, the grant-free transmission mode allows mobile devices to make small traffic transmissions without waiting for uplink grant requests.

Abstract translation: 可以使用免授权传输模式来传送小的业务传输以减少开销和延迟。 无授权传输模式可用于无线网络的下行链路和上行链路数据信道。 在下行链路信道中，基站向搜索空间中的一组UE发送分组，而不向UE通信任何传输码分配。 UE使用盲检测接收下行链路分组。 在上行链路信道中，UE使用分配的接入码来发送接入空间中的分组，所述分配的接入码由UE单独导出，或者由基站使用慢信令信道进行通信。 因此，免授权传输模式允许移动设备在不等待上行链路授权请求的情况下进行小的业务传输。