公开(公告)号：WO2018063933A3

公开(公告)日：2018-04-05

申请号：PCT/US2017/052945

申请日：2017-09-22

Applicant: QUALCOMM INCORPORATED

Inventor： RAGHAVAN, Vasanthan ,  SUBRAMANIAN, Sundar ,  CEZANNE, Juergen ,  SAMPATH, Ashwin ,  LI, Junyi

IPC: H04B7/06 ,  H04B7/08

Abstract: Certain aspects of the present disclosure provide various appropriate frame structures, sweep sequences, and procedures that may assist in beam sweeping, tracking and recovery.

Abstract translation: 本公开的某些方面提供了各种合适的帧结构，扫描序列和可帮助波束扫描，跟踪和恢复的过程。

公开(公告)号：WO2018039382A1

公开(公告)日：2018-03-01

申请号：PCT/US2017/048274

申请日：2017-08-23

Applicant: QUALCOMM INCORPORATED

Inventor： ABEDINI, Navid ,  LUO, Tao ,  SUBRAMANIAN, Sundar ,  ISLAM, Muhammad Nazmul ,  SADIQ, Bilal ,  SAMPATH, Ashwin ,  CEZANNE, Juergen ,  LI, Junyi ,  MUKKAVILLI, Krishna Kiran ,  MALLADI, Durga Prasad ,  KOYMEN, Ozge ,  MAHARSHI, Atul

IPC: H04L5/00 ,  H04L27/26

CPC classification number: H04W72/0446 ,  H04B7/0408 ,  H04L5/0007 ,  H04L5/0042 ,  H04L5/0096 ,  H04L27/2602 ,  H04W24/02 ,  H04W72/042

Abstract: In wireless communication systems that support 5G or NR protocols, subframes used for communication may have different numerology options. Numerology options may refer to the characteristics of the subframe such as a tone spacing within each symbol of the subframe, a symbol duration for each symbol of the subframe, a number of symbols in the subframe, etc. A subframe may include a control channel (e.g., the PDCCH) and a data channel (e.g., the PDSCH). In an aspect, the control channel and the data channel within the subframe may have different numerologies. As such, a need exists to signal the numerology of the subframe to users and to determine whether and how to multiplex the control channel and the data channel into the subframe.

公开(公告)号：WO2018026466A1

公开(公告)日：2018-02-08

申请号：PCT/US2017/041310

申请日：2017-07-10

Applicant: QUALCOMM INCORPORATED

Inventor： HAMPEL, Karl Georg ,  LI, Junyi ,  SUBRAMANIAN, Sundar ,  ISLAM, Muhammad Nazmul ,  ABEDINI, Navid

IPC: H04W72/12 ,  H04W92/20

Abstract: Methods, systems, and devices for wireless communication are described. In particular, a backhaul network that may be established between access nodes and/or base stations is shown and described. To support communications via the backhaul network, a synchronized frame structure and unique network topologies may be established. Resources may be allocated to different wireless communication links based on the synchronized frame structure. Occupancy/availability indications are shown and described, which enable the local redistribution of resources to account for variations in signal quality and/or variations in traffic experienced by the backhaul network.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 具体地，示出并描述了可以在接入节点和/或基站之间建立的回程网络。 为了支持通过回程网络的通信，可以建立同步的帧结构和独特的网络拓扑。 基于同步的帧结构可以将资源分配给不同的无线通信链路。 显示和描述占用/可用性指示，其使得资源的本地重新分配能够解决回程网络中信号质量和/或业务量变化的变化。

公开(公告)号：WO2017209935A3

公开(公告)日：2017-12-07

申请号：PCT/US2017/032725

申请日：2017-05-15

Applicant: QUALCOMM INCORPORATED

Inventor： ISLAM, Muhammad Nazmul ,  LI, Junyi ,  SUBRAMANIAN, Sundar ,  CEZANNE, Juergen ,  ABEDINI, Navid ,  LUO, Tao

IPC: H04W74/08 ,  H04B7/08 ,  H04W72/04

Abstract: A mechanism is proposed to reduce overhead at the expense of increasing latency for UEs with weak link gain, while the latency for most UEs may remain the same. In one aspect of this disclosure, a UE may determine the number of attempts for transmitting a RACH signal based on one or more of path loss, the transmit power of the UE, the beam correspondence at the UE, or the power of signals received during the synchronization subframe. The UE may transmit the RACH signal in the determined number of attempts. In another aspect of the disclosure, a base station may combine signals of one or more RACH attempts to decode a RACH signal. The base station may inform a UE regarding the number of RACH subframes that the base station uses for decoding the RACH signal through a random access response message.

公开(公告)号：WO2017209935A2

公开(公告)日：2017-12-07

申请号：PCT/US2017/032725

申请日：2017-05-15

Applicant: QUALCOMM INCORPORATED

Inventor： ISLAM, Muhammad Nazmul ,  LI, Junyi ,  SUBRAMANIAN, Sundar ,  CEZANNE, Juergen ,  ABEDINI, Navid ,  LUO, Tao

IPC: H04W74/08 ,  H04B7/08 ,  H04W72/04

Abstract: A mechanism is proposed to reduce overhead at the expense of increasing latency for UEs with weak link gain, while the latency for most UEs may remain the same. In one aspect of this disclosure, a UE may determine the number of attempts for transmitting a RACH signal based on one or more of path loss, the transmit power of the UE, the beam correspondence at the UE, or the power of signals received during the synchronization subframe. The UE may transmit the RACH signal in the determined number of attempts. In another aspect of the disclosure, a base station may combine signals of one or more RACH attempts to decode a RACH signal. The base station may inform a UE regarding the number of RACH subframes that the base station uses for decoding the RACH signal through a random access response message.

Abstract translation: 提出了一种机制来减少开销，但是增加了具有较弱链路增益的UE的等待时间，而大多数UE的等待时间可能保持不变。 在本公开的一个方面中，UE可以基于路径损耗，UE的发射功率，UE处的波束对应或者期间接收到的信号的功率中的一个或多个来确定发送RACH信号的尝试的次数 同步子帧。 UE可以以确定的尝试次数发送RACH信号。 在本公开的另一方面中，基站可以组合一个或多个RACH尝试的信号来解码RACH信号。 基站可以通知UE关于基站用于通过随机接入响应消息来解码RACH信号的RACH子帧的数目。

公开(公告)号：WO2017209930A1

公开(公告)日：2017-12-07

申请号：PCT/US2017/032638

申请日：2017-05-15

Applicant: QUALCOMM INCORPORATED

Inventor： ABEDINI, Navid ,  SUBRAMANIAN, Sundar ,  LI, Junyi ,  ISLAM, Muhammad Nazmul ,  CEZANNE, Juergen ,  SADIQ, Bilal ,  LUO, Tao

IPC: H04L27/26 ,  H04J11/00

CPC classification number: H04L7/0016 ,  H04J11/0069 ,  H04J11/0076 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0048 ,  H04L27/2613 ,  H04L27/2636 ,  H04L27/2655 ,  H04L27/2692 ,  H04W56/0015

Abstract: Methods, systems, and devices for wireless communication are described. A wireless communications system operating in millimeter wave (mmW) spectrum may utilize synchronization signals for beam tracking. A synchronization signal (e.g., primary synchronization signals (PSS), secondary synchronization signals (SSS), etc.), beam reference signal, and/or control signal may be designed to facilitate beam tracking. A synchronization signal structure based on a repeated sequence in the time domain may facilitate searching for different beams in a timely manner. In some cases, the repeated synchronization signal structure may be achieved by using a larger tone spacing, and hence having shorter symbol duration and repeating the short symbols in the time domain. The repeated structure may be further used to encode additional information (e.g., facilitated by the resulting additional degrees of freedom). Additionally or alternatively, a synchronization signal (e.g., SSS) may be discrete Fourier transform (DFT) pre-coded to achieve better peak-to-average-power-ratio (PAPR).

Abstract translation: 描述了用于无线通信的方法，系统和设备。 以毫米波（mmW）频谱工作的无线通信系统可利用同步信号进行波束追踪。 可以设计同步信号（例如，主同步信号（PSS），辅同步信号（SSS）等），波束参考信号和/或控制信号以促进波束追踪。 基于时域中的重复序列的同步信号结构可以方便及时地搜索不同的波束。 在一些情况下，可以通过使用较大的音调间隔来实现重复的同步信号结构，并且因此具有较短的码元持续时间并且在时域中重复短码元。 重复结构可以被进一步用于编码附加信息（例如，由所产生的附加自由度促成）。 另外地或可选地，同步信号（例如，SSS）可以是预编码的离散傅里叶变换（DFT）以实现更好的峰值 - 平均功率比（PAPR）。

公开(公告)号：WO2017180335A1

公开(公告)日：2017-10-19

申请号：PCT/US2017/025572

申请日：2017-03-31

Applicant: QUALCOMM INCORPORATED

Inventor： LUO, Tao ,  CEZANNE, Juergen ,  SUBRAMANIAN, Sundar ,  SAMPATH, Ashwin ,  SADIQ, Bilal ,  LI, Junyi ,  ISLAM, Muhammad Nazmul

IPC: H04B7/0417 ,  H04B7/06

Abstract: A first apparatus may communicate with a user equipment (UE) through an active beam. The first apparatus may transmit, to the UE, information indicating a periodicity at which control information is to be communicated on a control channel through a control-information beam. The first apparatus may communicate, with the UE, the control information on the control channel through the control-information beam at the periodicity. Further, the first apparatus may receive a request to change the active beam, which may indicate a beam index corresponding to a second beam, and the first apparatus may change the active beam to the second beam corresponding to the beam index indicated by the request.

Abstract translation: 第一装置可以通过活动波束与用户设备（UE）进行通信。 第一装置可以通过控制信息波束向UE发送指示要在控制信道上传送控制信息的周期性的信息。 第一装置可以通过控制信息波束以周期性与UE通信控制信道上的控制信息。 此外，第一装置可以接收改变活动波束的请求，该请求可以指示对应于第二波束的波束索引，并且第一装置可以将活动波束改变为对应于该请求所指示的波束索引的第二波束。

公开(公告)号：WO2017176409A1

公开(公告)日：2017-10-12

申请号：PCT/US2017/021000

申请日：2017-03-06

Applicant: QUALCOMM INCORPORATED

Inventor： SUBRAMANIAN, Sundar ,  SORIAGA, Joseph Binamira ,  SAMPATH, Ashwin ,  LI, Junyi ,  CEZANNE, Juergen ,  JI, Tingfang ,  GOROKHOV, Alexei Yurievitch ,  ISLAM, Muhammad Nazmul

IPC: H04L5/00

CPC classification number: H04W72/0446 ,  H04L5/0044 ,  H04L5/0053 ,  H04W72/0413 ,  H04W72/042

Abstract: A structure where there are self-contained subframes/slots with smaller TTIs within the subframes/slots is provided to address the issues in MMW scheduling. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may transmit downlink information to at least one UE using a plurality of downlink TTIs within a subframe/slot. The apparatus may receive uplink information from the at least one UE using at least one uplink region within the subframe/slot. In another aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may receive downlink information from a base station using at least one downlink TTI within a subframe/slot. The subframe/slot may include a plurality of downlink TTIs and at least one uplink region. The apparatus may transmit uplink information to the base station using the at least one uplink region within the subframe/slot.

Abstract translation: 提供在子帧/时隙内具有较小TTI的独立子帧/时隙的结构，以解决MMW调度中的问题。 在本公开的一个方面中，提供了一种方法，一种计算机可读介质和一种装置。 该装置可以使用子帧/时隙内的多个下行链路TTI向至少一个UE发送下行链路信息。 该装置可以使用该子帧/时隙内的至少一个上行链路区域从该至少一个UE接收上行链路信息。 在本公开的另一方面中，提供了一种方法，一种计算机可读介质和一种装置。 该装置可以使用子帧/时隙内的至少一个下行链路TTI从基站接收下行链路信息。 子帧/时隙可以包括多个下行链路TTI和至少一个上行链路区域。 该装置可以使用子帧/时隙内的至少一个上行链路区域向基站发送上行链路信息。

公开(公告)号：WO2017176408A1

公开(公告)日：2017-10-12

申请号：PCT/US2017/020983

申请日：2017-03-06

Applicant: QUALCOMM INCORPORATED

Inventor： ISLAM, Muhammad Nazmul ,  LI, Junyi ,  SUBRAMANIAN, Sundar ,  CEZANNE, Juergen ,  SADIQ, Bilal

IPC: H04B7/06 ,  H04B7/08

CPC classification number: H04W56/001 ,  H04B7/0617 ,  H04B7/0686 ,  H04B7/0868 ,  H04W72/046 ,  H04W74/0833 ,  H04W74/0891

Abstract: Methods, systems, and devices for wireless communication are described. The method may include transmitting a first synchronization signal in a set of beam directions during a first symbol period of a synchronization subframe and transmitting a second synchronization signal in another set of beam directions during a second symbol period of the synchronization subframe. The second set of beam directions may be spatially interleaved with the first set of beam directions. Additionally, the method may include monitoring a first and second set of beam directions during a first and second symbol period of a random access subframe, respectively. Additionally, the method may include receiving, from a base station, first and second synchronization signals in a synchronization subframe, decoding the first synchronization signal, and transmitting an access request based at least in part on the decoded first synchronization signal.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 该方法可以包括在同步子帧的第一符号周期期间在一组波束方向上发送第一同步信号，并且在同步子帧的第二符号周期期间在另一组波束方向上发送第二同步信号。 第二组波束方向可以与第一组波束方向在空间上交织。 另外，该方法可以包括分别在随机接入子帧的第一和第二符号周期期间监测第一和第二组波束方向。 另外，该方法可以包括从基站接收同步子帧中的第一和第二同步信号，对第一同步信号进行解码，以及至少部分地基于解码的第一同步信号来发送接入请求。

公开(公告)号：WO2017172279A1

公开(公告)日：2017-10-05

申请号：PCT/US2017/020972

申请日：2017-03-06

Applicant: QUALCOMM INCORPORATED

Inventor： ISLAM, Muhammad Nazmul ,  CEZANNE, Juergen ,  SUBRAMANIAN, Sundar ,  SADIQ, Bilal ,  LI, Junyi ,  SAMPATH, Ashwin

IPC: H04W74/08 ,  H04J11/00 ,  H04B7/04

CPC classification number: H04J11/0036 ,  H04B7/04 ,  H04B7/0695 ,  H04J2011/0006 ,  H04W74/0833 ,  H04W74/0891

Abstract: A user equipment (UE) may transmit a random access message to a wireless node using multiple symbols. The random access message may include repetitions of a random access sequence weighted by a spreading code. For example, a random access sequence may be weighted using different elements of the spreading code, where a first repetition may be weighted with a first element and a second repetition may be weighted using a second element. The weighted random access signals may be spread over multiple symbols and transmitted to the wireless node as the random access message. In some cases, a spreading code may include values of one and negative one, and may correspond to a number of symbols used to transmit the random access message. The spreading code may further indicate a downlink transmission beam identification (ID) associated with desirable reception qualities at the UE.

Abstract translation: 用户设备（UE）可以使用多个符号向无线节点发送随机接入消息。 随机接入消息可以包括由扩频码加权的随机接入序列的重复。 例如，可以使用扩频码的不同元素对随机接入序列进行加权，其中第一重复可以用第一元素加权并且第二重复可以使用第二元素加权。 加权的随机接入信号可以散布在多个符号上并作为随机接入消息发送到无线节点。 在一些情况下，扩频码可以包括1和负1的值，并且可以对应于用于发送随机接入消息的码元的数量。 扩频码还可以指示与在UE处的期望接收质量相关联的下行链路传输波束标识（ID）。