公开(公告)号：WO2018031849A1

公开(公告)日：2018-02-15

申请号：PCT/US2017/046422

申请日：2017-08-11

Applicant: QUALCOMM INCORPORATED

Inventor： ISLAM, Muhammad Nazmul ,  SUBRAMANIAN, Sundar ,  LI, Junyi ,  ABEDINI, Navid ,  SADIQ, Bilal

IPC: H04B7/06 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a downlink (DL) signal from a base station on one or more DL beam(s). The UE may identify of a nature of correspondence between one or more receive beams at the UE and one or more transmit beams at the UE. The UE may identify a selected DL beam of the one or more DL beam(s) for communications from the base station to the UE. The UE may transmit a random access channel (RACH) message to the base station using a resource and/or a RACH waveform selected based on the selected DL beam based at least in part on the selected DL beam and the nature of correspondence.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 用户设备（UE）可以在一个或多个DL波束上从基站接收下行链路（DL）信号。 UE可以识别UE处的一个或更多个接收波束与UE处的一个或更多个发射波束之间的对应性质。 UE可以识别用于从基站到UE的通信的一个或多个DL波束中的选择的DL波束。 UE可以使用基于所选择的DL波束选择的资源和/或RACH波形至少部分地基于所选择的DL波束和对应性质向基站发送随机接入信道（RACH）消息。 p>

公开(公告)号：WO2017210345A3

公开(公告)日：2017-12-07

申请号：PCT/US2017/035289

申请日：2017-05-31

Applicant: QUALCOMM INCORPORATED

Inventor： ISLAM, Muhammad Nazmul ,  ABEDINI, Navid ,  LUO, Tao ,  SUBRAMANIAN, Sundar ,  CEZANNE, Juergen ,  SAMPATH, Ashwin ,  GOROKHOV, Alexei Yurievitch ,  LI, Junyi ,  SADIQ, Bilal

IPC: H04W56/00

Abstract: According to an aspect of the disclosure, a base station may convey the parameter information to the UE based on selection of particular resources to be used for transmission of synchronization signals, where the selected resources correspond to the particular parameter information. The UE may blindly detect the synchronization signals on various candidate resources and determine the parameter information based on the resources where the synchronization signals are detected. The apparatus may be a base station. In an aspect, the base station determines parameter information of one or more parameters. The base station selects, based on the parameter information, synchronization resources from a plurality of candidate resources for transmission of one or more synchronization signals, where the selected synchronization resources correspond to the parameter information. The base station transmits the one or more synchronization signals using the selected synchronization resources.

公开(公告)号：WO2017210326A1

公开(公告)日：2017-12-07

申请号：PCT/US2017/035258

申请日：2017-05-31

Applicant: QUALCOMM INCORPORATED

Inventor： ISLAM, Muhammad Nazmul ,  ABEDINI, Navid ,  LUO, Tao ,  SUBRAMANIAN, Sundar ,  CEZANNE, Juergen ,  SAMPATH, Ashwin ,  GOROKHOV, Alexei Yurievitch ,  LI, Junyi ,  SADIQ, Bilal

IPC: H04W56/00

Abstract: The apparatus may be a user equipment (UE). The apparatus receives a transmission of at least one of a plurality of first synchronization signals. The apparatus receives at least one repeat transmission of the at least one of the plurality of first synchronization signals. In an aspect, the transmission and the at least one repeat transmission are received in a same synchronization signal block.

Abstract translation: 该装置可以是用户设备（UE）。 该设备接收多个第一同步信号中的至少一个的传输。 该设备接收多个第一同步信号中的至少一个的至少一个重复传输。 在一个方面，传输和至少一个重复传输在同一个同步信号块中被接收。

公开(公告)号：WO2017209936A1

公开(公告)日：2017-12-07

申请号：PCT/US2017/032732

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 ,  H04W52/00 ,  H04W72/04 ,  H04B7/02 ,  H04W76/02

Abstract: In one aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided to reduce overhead at the expense of increasing latency for UEs with weak link gain, while latency for most UEs may remain the same. The apparatus may be a UE. The apparatus may transmit a RACH preamble to a base station in one or more attempts. The apparatus may receive, through a random access response message from the base station, information including the number of attempts the base station uses to decode the RACH preamble. The apparatus may adjust the transmission power for the connection request message according to the number of attempts the base station uses to decode the RACH preamble. The apparatus may transmit the connection request message using the adjusted transmission power.

Abstract translation: 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，其以增加具有较弱链路增益的UE的等待时间为代价来减少开销，而大多数UE的等待时间 可能保持不变。 该装置可以是UE。 该装置可以在一次或多次尝试中向基站发送RACH前导码。 该装置可以通过来自基站的随机接入响应消息来接收包括基站尝试解码RACH前导码的尝试次数的信息。 该装置可以根据基站用于解码RACH前导码的尝试次数来调​​整连接请求消息的传输功率。 该装置可以使用调整后的发送功率发送连接请求消息。

公开(公告)号：WO2017204934A1

公开(公告)日：2017-11-30

申请号：PCT/US2017/027998

申请日：2017-04-17

Applicant: QUALCOMM INCORPORATED

Inventor： ISLAM, Muhammad Nazmul ,  SADIQ, Bilal ,  LUO, Tao ,  SUBRAMANIAN, Sundar ,  LI, Junyi

IPC: H04B7/0417 ,  H04B7/0452 ,  H04B7/06 ,  H04W74/08 ,  H04B7/08

Abstract: A UE may select a first beam for communication with a base station. The UE may attempt, through the selected first beam, at least one RACH procedure with the base station. The UE may determine that the at least one RACH procedure failed with the base station. The UE may send, after a successful RACH procedure with the base station, information indicating that the at least one RACH procedure failed. In an aspect, the UE may select a new beam for communication with the base station after the determination that the at least one RACH procedure failed, and at least a portion of the successful RACH procedure may be performed through the selected new beam.

Abstract translation: UE可以选择用于与基站进行通信的第一波束。 UE可以通过所选择的第一波束尝试与基站进行至少一个RACH过程。 UE可以确定与基站的至少一个RACH过程失败。 UE可以在与基站成功的RACH过程之后发送指示至少一个RACH过程失败的信息。 在一个方面中，在确定至少一个RACH过程失败之后，UE可以选择新的波束用于与基站进行通信，并且可以通过选择的新波束执行至少一部分成功的RACH过程。 p>

公开(公告)号：WO2017204929A1

公开(公告)日：2017-11-30

申请号：PCT/US2017/027969

申请日：2017-04-17

Applicant: QUALCOMM INCORPORATED

Inventor： ISLAM, Muhammad Nazmul ,  SADIQ, Bilal ,  LUO, Tao ,  SUBRAMANIAN, Sundar ,  LI, Junyi

IPC: H04B7/0417 ,  H04B7/0452 ,  H04B7/06 ,  H04W74/08

CPC classification number: H04B7/0814 ,  H01Q1/245 ,  H04B7/0404 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/061 ,  H04B7/0617 ,  H04B7/0623 ,  H04B7/0626 ,  H04B7/0628 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0695 ,  H04W16/28 ,  H04W28/0231 ,  H04W40/248 ,  H04W74/0833 ,  H04W74/0858

Abstract: A user equipment (UE) may be configured to perform a random access channel (RACH) procedure with a base station. As part of the RACH procedure, the base station may transmit a contention resolution message to the UE. The UE may receive, from the base station, the contention resolution message. The contention resolution message may indicate at least a beam index corresponding to a beam, such as a transmit beam of the base station. The UE may determine whether the beam index is applicable to the UE. The UE may communicate with the base station through the beam corresponding to the beam index when the beam index is applicable to the UE. For example, the UE may send an acknowledgement message to the base station, and the base station and UE may switch to a beam corresponding to the beam index after communication of the acknowledgement message.

Abstract translation: 用户设备（UE）可以被配置为与基站执行随机接入信道（RACH）过程。 作为RACH过程的一部分，基站可以向UE发送竞争解决消息。 UE可以从基站接收竞争解决消息。 竞争解决消息可以至少指示对应于波束的波束索引，诸如基站的发射波束。 UE可以确定波束索引是否适用于UE。 当波束索引适用于UE时，UE可以通过与波束索引对应的波束与基站通信。 例如，UE可以向基站发送确认消息，并且基站和UE可以在传送确认消息之后切换到与波束索引对应的波束。

公开(公告)号：WO2017184304A1

公开(公告)日：2017-10-26

申请号：PCT/US2017/024346

申请日：2017-03-27

Applicant: QUALCOMM INCORPORATED

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

IPC: H04B7/0417 ,  H04B7/06 ,  H04B7/08

CPC classification number: H04W72/0413 ,  H04B7/0408 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0695 ,  H04B7/088 ,  H04B17/336 ,  H04L5/0048 ,  H04L5/0053 ,  H04L25/0204 ,  H04W16/28 ,  H04W72/02 ,  H04W72/046 ,  H04W74/0833

Abstract: When beamforming (e.g., via a millimeter wave system (mmW)) is used for wireless communication, a base station may transmit beams that are directed to certain directions. Due to the directional nature of the beams in the mmW system, an approach to determine a beam that provides a desirable gain is studied. The apparatus may be a user equipment (UE). The apparatus receives, from a base station, a plurality of signals through a plurality of beams of the base station, each of the plurality of beams corresponding to a respective antenna port of a plurality of antenna ports of the base station. The apparatus performs channel estimation for each beam of the plurality of beams from the plurality of antenna ports based on the plurality of signals. The apparatus transmits, to the base station, a feedback signal including information about one or more beams selected from the plurality of beams, the feedback signal further including one or more candidate uplink precoders.

Abstract translation: 当波束成形（例如，经由毫米波系统（mmW））用于无线通信时，基站可以发射指向特定方向的波束。 由于mmW系统中光束的方向性质，研究了确定提供所需增益的光束的方法。 该装置可以是用户设备（UE）。 该装置通过基站的多个波束从基站接收多个信号，多个波束中的每个波束对应于基站的多个天线端口中的相应天线端口。 该设备基于多个信号来对来自多个天线端口的多个波束中的每个波束执行信道估计。 该装置向基站发送包括关于从多个波束中选择的一个或多个波束的信息的反馈信号，反馈信号还包括一个或多个候选上行链路预编码器。

公开(公告)号：WO2017180336A1

公开(公告)日：2017-10-19

申请号：PCT/US2017/025579

申请日：2017-03-31

Applicant: QUALCOMM INCORPORATED

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

IPC: H04B7/0417 ,  H04B7/06 ,  H04B7/08

Abstract: A first apparatus may transmit, to a user equipment (UE), on a control channel, one or more indications of one or more beam indexes corresponding to one or more beams. The first apparatus may transmit, to the UE, one or more reference signals through the one or more beams corresponding to the one or more beam indexes. The reference signals may be used by the UE to select a best subarray and/or receive combiner for communication with the first apparatus.

Abstract translation: 第一装置可以在控制信道上向用户设备（UE）传输对应于一个或多个波束的一个或多个波束索引的一个或多个指示。 第一装置可以通过与一个或多个波束索引对应的一个或多个波束向UE发送一个或多个参考信号。 UE可以使用参考信号来选择用于与第一装置进行通信的最佳子阵列和/或接收组合器。

公开(公告)号：WO2017176805A1

公开(公告)日：2017-10-12

申请号：PCT/US2017/026010

申请日：2017-04-04

Applicant: QUALCOMM INCORPORATED

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

IPC: H04W72/12

Abstract: A UE may receive a directional synchronization subframe from a base station and transmit a scheduling request to the base station during a time period based on the directional synchronization subframe. The scheduling request may enable a base station to grant the UE resources to send a buffer status report (BSR). The time period may be associated with a random access channel (RACH) time period. The UE may also transmit a scheduling request within a frequency region of the RACH time period. The scheduling request may be transmitted based on a received indication of a set of subcarrier, a cyclic shift, or a sequence index. In some examples, the resources used by the UE to send the BSR may include physical uplink shared channel (PUSCH) or physical uplink control channel (PUCCH) resources.

Abstract translation: UE可以从基站接收定向同步子帧，并且在基于定向同步子帧的时间段期间向基站发送调度请求。 调度请求可以使基站能够授权UE资源发送缓冲器状态报告（BSR）。 该时间段可以与随机接入信道（RACH）时间段相关联。 UE还可以在RACH时间段的频率区域内发送调度请求。 调度请求可以基于接收到的一组子载波，循环移位或序列索引的指示来发送。 在一些示例中，UE用于发送BSR的资源可以包括物理上行链路共享信道（PUSCH）或物理上行链路控制信道（PUCCH）资源。

公开(公告)号：WO2017165080A1

公开(公告)日：2017-09-28

申请号：PCT/US2017/019652

申请日：2017-02-27

Applicant: QUALCOMM INCORPORATED

Inventor： SADIQ, Bilal ,  LUO, Tao ,  CEZANNE, Juergen ,  ABEDINI, Navid ,  MUKKAVILLI, Krishna Kiran ,  ISLAM, Muhammad Nazmul ,  SUBRAMANIAN, Sundar ,  SAMPATH, Ashwin

IPC: H04J11/00 ,  H04L27/26 ,  H04W56/00 ,  H04L25/03

Abstract: Methods, systems, and devices for wireless communication are described. Some examples provide for identifying a primary synchronization signal (PSS) sequence of a synchronization subframe, determining, for the synchronization subframe, an extended synchronization signal (ESS) sequence based at least in part on the PSS sequence and transmitting the synchronization subframe. Other examples provide for generating an ESS sequence for a synchronization subframe to be communicated to a UE, scrambling the ESS sequence based at least in part on cell-specific information associated with the base station and transmitting, to the UE, the scrambled ESS sequence in the synchronization subframe.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 一些示例提供用于识别同步子帧的主同步信号（PSS）序列，至少部分地基于PSS序列并且发送同步子帧来为同步子帧确定扩展同步信号（ESS）序列。 其他示例提供用于生成用于要传送给UE的同步子帧的ESS序列，至少部分地基于与基站相关联的小区特定信息来加扰ESS序列，并向UE发送加扰的ESS序列in 同步子帧。