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公开(公告)号：WO2018136405A1
公开(公告)日：2018-07-26
申请号：PCT/US2018/013831
申请日：2018-01-16
Applicant: QUALCOMM INCORPORATED
Inventor： SADIQ, Bilal , SUBRAMANIAN, Sundar , LUO, Tao , NAGARAJA, Sumeeth , CEZANNE, Juergen , SAMPATH, Ashwin , ABEDINI, Navid , ISLAM, Muhammad Nazmul
Abstract: Methods, systems, and devices for wireless communication are described. Beams used for synchronization signals may be associated with beams used for reference signals. For example, a base station may identify a first set of millimeter wave (mmW) communication beams to transmit a synchronization signal. The base station may transmit the synchronization signal and identify a second set of mmW communication beams to transmit a reference signal, where the second set of mmW communication beams may be associated with the first set of beams. For instance, the first set and second set of mmW communication beams may be the same or similar. The base station may then transmit the reference signal on the second set of mmW communication beams. A user equipment may in turn identify the first and second sets of beams as being associated, and receive the reference signal on the second set of mmW communication beams.
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172.发明申请
公开(公告)号：WO2018118531A1
公开(公告)日：2018-06-28
申请号：PCT/US2017/065819
申请日：2017-12-12
Applicant: QUALCOMM INCORPORATED
Inventor： ISLAM, Muhammad Nazmul , LI, Junyi , LUO, Tao , NAGARAJA, Sumeeth
Abstract: Methods, systems, and devices for wireless communication are described for selecting different uplink transmission parameters for transmission or retransmission of a random access message. A user equipment (UE) may transmit or retransmit a random access message such as a layer 2 or layer 3 (L2/L3) message to a base station during a random access procedure. The UE may select a transmission beam, uplink resource or transmission power for the transmission of the L2/L3 message that differ from those used for transmission of a previous random access message. The selection may be based on path loss associated with synchronization signals or previous transmissions. The selection may also be based on a maximum number of retransmissions.
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公开(公告)号：WO2018089120A1
公开(公告)日：2018-05-17
申请号：PCT/US2017/053317
申请日：2017-09-25
Applicant: QUALCOMM INCORPORATED
Inventor： ABEDINI, Navid , SADIQ, Bilal , SUBRAMANIAN, Sundar , LI, Junyi , ISLAM, Muhammad Nazmul , MAHARSHI, Atul , CEZANNE, Juergen , SAMPATH, Ashwin
Abstract: Methods, systems, and devices for wireless communication are described that provide for the indication of communication information using a correlation between synchronization signals transmitted by a base station for cell acquisition. The communication information may include a physical channel timing parameter such as synchronization periodicity, a physical broadcast channel (PBCH) periodicity, a beam sweep periodicity, or a cyclic prefix (CP) type. Communication information may also indicate the presence of a physical broadcast channel (PBCH) transmission or a mobility reference signal (MRS) transmission. The correlation may be a phase shift between multiple signals or may be based on precoding matrices used during transmission processing of the synchronization signals across subcarriers and antenna ports.
Abstract translation: 描述了用于无线通信的方法，系统和设备，其使用由基站发送的用于小区捕获的同步信号之间的相关性来指示通信信息。 通信信息可以包括诸如同步周期性，物理广播信道（PBCH）周期性，波束扫描周期性或循环前缀（CP）类型的物理信道时序参数。 通信信息还可以指示存在物理广播信道（PBCH）传输或移动性参考信号（MRS）传输。 相关性可以是多个信号之间的相移，或者可以基于在子载波和天线端口上的同步信号的传输处理期间使用的预编码矩阵。
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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
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.
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175.发明申请
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
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。
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Patent Agency Ranking
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
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.
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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
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。
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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
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）。
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公开(公告)号：WO2017200736A2
公开(公告)日：2017-11-23
申请号：PCT/US2017/030367
申请日：2017-05-01
Applicant: QUALCOMM INCORPORATED
Inventor： ISLAM, Muhammad Nazmul , LUO, Tao , SADIQ, Bilal , CEZANNE, Juergen , LI, Junyi
IPC: H04W52/50
Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may identify a number of beam directions that satisfy a transmission power condition. The UE may select a beam direction for a random access signal by choosing one of the beam directions that satisfies additional criteria, such as transmitting a random access message at the next opportunity. The transmission power may be selected based on a target receive power and a path loss for the selected beam. In some cases, if the sum of the path loss for a beam direction and the target receive power exceeds a maximum transmission power by more than a predetermined amount, the random access signal will not be transmitted using that beam. In some cases, if a response to the random access is not received, a different beam direction may be selected, the transmission power may be increased, or both.
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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。
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