公开(公告)号：US20180323932A1

公开(公告)日：2018-11-08

申请号：US15970646

申请日：2018-05-03

Applicant: QUALCOMM Incorporated

Inventor： Yi HUANG ,  Renqiu WANG ,  Hao XU ,  Seyong PARK

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0051 ,  H04B1/713 ,  H04L1/005 ,  H04L5/0012 ,  H04L5/0028 ,  H04W72/0413 ,  H04W72/1284 ,  H04W72/14

Abstract: The duration of variable length uplink control channels may vary over a wide range. Transmissions related to overhead may take up a larger percentage of symbols for shorter durations of the variable length uplink control channel. Disabling intra-slot hopping may be beneficial to decrease overhead (as a percentage). The apparatus may be an apparatus for wireless communication. The apparatus may include a transmitter or receiver and a processing system. The processing system may be configured to determine whether or not to use intra-slot frequency hopping for a variable length uplink control channel, and communicate information to the transmitter for transmission over the variable length uplink control channel or receive information from the receiver. The information may be received over the variable length uplink control channel, the information transmitted by the transmitter or received by the receiver based on the determination of whether or not to use intra-slot frequency hopping.

公开(公告)号：US20180323925A1

公开(公告)日：2018-11-08

申请号：US15969366

申请日：2018-05-02

Applicant: QUALCOMM Incorporated

Inventor： Yi HUANG ,  Renqiu WANG ,  Seyong PARK ,  Hao XU ,  Peter GAAL ,  Wanshi CHEN ,  Alexandros MANOLAKOS

IPC: H04L5/00 ,  H04L7/033 ,  H04W72/14

CPC classification number: H04L5/0048 ,  H04L5/0007 ,  H04L5/0012 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0078 ,  H04L5/1469 ,  H04L7/0337 ,  H04L27/2613 ,  H04W72/042 ,  H04W72/14

Abstract: Aspects herein describe transmitting a reference signal in wireless communications. A configured delay value related to a delay in communications can be determined based on receiving a corresponding resource grant. A time division of a slot for transmitting a reference signal for the communications can be determined based at least in part on the configured delay value. The reference signal can be transmitted during the time division of the slot.

公开(公告)号：US20180316531A1

公开(公告)日：2018-11-01

申请号：US15961489

申请日：2018-04-24

Applicant: QUALCOMM Incorporated

Inventor： Seyong PARK ,  Peter GAAL ,  Yi HUANG ,  Renqiu WANG ,  Hao XU ,  Tao LUO

IPC: H04L27/26 ,  H04B7/06

CPC classification number: H04L27/263 ,  H04B7/06 ,  H04J11/0023 ,  H04L25/03821 ,  H04L27/2605 ,  H04L27/2627

Abstract: Adjacent channel leakage-power ratio (ACLR) can be reduced at a transmitter of a device. A modulated signal can be mapped into a plurality of tone sets in a frequency domain, wherein the plurality of tone sets include a first, a second, and a third set of tones. The first and the third set of tones can be converted in the frequency domain to a fourth and a fifth set of tones, respectively, in a time domain. A zero padding of one or more symbols associated with the fourth and the fifth set of tones can be performed to output a sixth and a seventh set of tones, respectively. The sixth and the seventh set of tones can be converted to an eighth and a ninth set of tones, respectively, in the frequency domain. The eighth and the ninth set of tones can be processed for transmitting to another wireless device.

公开(公告)号：US20180048507A1

公开(公告)日：2018-02-15

申请号：US15671184

申请日：2017-08-08

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Hao XU ,  Wanshi CHEN ,  Peter GAAL ,  Tingfang JI ,  John Edward SMEE

IPC: H04L27/26 ,  H04L5/00 ,  G01S13/50

Abstract: Certain aspects of the present disclosure provide techniques for transmitting and processing reference signals, such as DMRS, that may account for mobility characteristics (e.g., that relate to a Doppler measurement) of a wireless node (e.g., a UE), such as Doppler measurements indicating how fast such a device is moving.

公开(公告)号：US20170230156A1

公开(公告)日：2017-08-10

申请号：US15397934

申请日：2017-01-04

Applicant: QUALCOMM Incorporated

Inventor： Seyed Ali Akbar FAKOORIAN ,  Peter GAAL ,  Alberto RICO ALVARINO ,  Xiaofeng WANG ,  Wanshi CHEN ,  Renqiu WANG ,  Hao XU

IPC: H04L5/00 ,  H04L27/20 ,  H04L27/22 ,  H04W72/08

CPC classification number: H04W4/70 ,  H04B7/0684 ,  H04L5/0051 ,  H04L5/0064 ,  H04L5/0094 ,  H04L25/0226 ,  H04L27/2613 ,  H04W72/085

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for pilot design for Narrow-Band Internet of Things (NB-IoT). In certain aspects, the method generally includes determining at least one binary code sequence to use as a demodulation reference signal (DMRS) for a channel transmitted across one or more subframes using one or more tones within a resource block (RB) allocated to the UE for narrowband communication, and transmitting the channel including the DMRS using the one or more tones and the determined binary code sequence. In certain aspects, the binary code sequence may be determined based on a binary random sequence, such as pseudo noise (PN) or Gold sequence.

公开(公告)号：US20170033843A1

公开(公告)日：2017-02-02

申请号：US15202901

申请日：2016-07-06

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Hao XU ,  Wanshi CHEN ,  Peter GAAL ,  Yongbin WEI

IPC: H04B7/04 ,  H04W28/02 ,  H04W4/00

CPC classification number: H04B7/04 ,  H04L5/0048 ,  H04L5/0053 ,  H04W4/70 ,  H04W28/0215 ,  H04W88/02

Abstract: Certain aspects of the present disclosure generally relate to wireless communications, and more specifically increasing user capacity through a frame structure which supports enhanced Machine Type Communication (eMTC) UL multi-user multiplexing. For example, a User Equipment (UE) identifies at least one narrowband region within a wider system bandwidth. The UE receives signaling, from a base station, indicating a sub-region of the narrowband region assigned to the UE for transmitting symbols of a physical uplink channel that are multiplexed with symbols transmitted by one or more other UEs in the narrowband region. The UE transmits the physical uplink channel in the assigned sub-region. Similar techniques are also provided that may be applied to DL multi-user multiplexing.

Abstract translation: 本公开的某些方面通常涉及无线通信，并且更具体地涉及通过支持增强的机器类型通信（eMTC）UL多用户复用的帧结构增加用户容量。 例如，用户设备（UE）识别更宽系统带宽内的至少一个窄带区域。 UE从基站接收指示分配给UE的用于发送与窄带区域中的一个或多个其他UE发送的符号复用的物理上行链路信道的符号的窄带区域的子区域的信令。 UE在所分配的子区域中发送物理上行链路信道。 还提供了可以应用于DL多用户复用的类似技术。

公开(公告)号：US20250055650A1

公开(公告)日：2025-02-13

申请号：US18917895

申请日：2024-10-16

Applicant: QUALCOMM Incorporated

Inventor： Jay Kumar SUNDARARAJAN ,  Renqiu WANG ,  Hao XU ,  Naga BHUSHAN ,  Haitong SUN ,  Wanshi CHEN

IPC: H04L5/00 ,  H04L1/00 ,  H04L1/08 ,  H04L1/1607 ,  H04L1/1812 ,  H04L1/1829 ,  H04L1/1867

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may transmit feedback, such as hybrid automatic repeat request (HARQ) feedback for groups of code blocks rather than for an entire transport block or individual code blocks. The wireless device may transmit an acknowledgement (ACK) or negative-acknowledgement (NACK) to provide feedback for each code block group of a set of code block groups. An ACK may indicate that code blocks in a code block group were successfully decoded, and a NACK may indicate that at least one code block in a code block group was not successfully decoded. Wireless devices may support several techniques for grouping code blocks for feedback reporting to allow for efficient retransmissions and limited overhead. Different grouping schemes may be employed depending on system constraints, device capability, link conditions, or the like.

公开(公告)号：US20250055514A1

公开(公告)日：2025-02-13

申请号：US18810339

申请日：2024-08-20

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Pinar SEN ,  Renqiu WANG ,  Peter GAAL ,  Naga BHUSHAN ,  Krishna Kiran MUKKAVILLI ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Hwan Joon KWON ,  Tingfang JI

IPC: H04B7/0456 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may be configured to transmit one or more reference signals to a second wireless device using a first antenna array at the first wireless device and in accordance with a first precoder matrix. The first wireless device may receive, from the second wireless device based on the one or more reference signals, a feedback message indicating an estimated rotational misalignment, an estimated spatial misalignment, or both, between the first antenna array at the first wireless device and a second antenna array at the second wireless device. The first wireless device may then transmit a message to the second wireless device in accordance with a second precoder matrix that is modified relative to the first precoder matrix based at least in part on the estimated rotational misalignment, the estimated spatial misalignment, or both.

公开(公告)号：US20240022367A1

公开(公告)日：2024-01-18

申请号：US17812643

申请日：2022-07-14

Applicant: QUALCOMM Incorporated

Inventor： Saeid SAHRAEI ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Renqiu WANG ,  Joseph Patrick BURKE ,  Tingfang JI ,  Vijay KUMARAVELU

IPC: H04L5/00 ,  H04B7/06

CPC classification number: H04L5/0048 ,  H04B7/0686

Abstract: Aspects are provided which allow a network entity to consider an identity property for received RS during analog combining or aggregation in order to achieve efficient channel sounding and estimation. The network entity may receive an RS in a time period via a plurality of antenna elements. The network entity may combine, in an analog domain, the RS received via each of the antenna elements based at least in part on weights associated with the antenna elements. At least one weight of the weights changes over the time period, and the weights are elements of a time domain orthogonal cover code or a DFT matrix. As a result of these weights, the network entity may estimate multiple combined or individual channels of antenna elements or groups from one or more RS in one or more symbols, potentially improving UE energy efficiency, efficient resource allocation, and coherency between the antenna elements.

公开(公告)号：US20230361970A1

公开(公告)日：2023-11-09

申请号：US18356511

申请日：2023-07-21

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Linhai HE ,  Seyong PARK ,  Gabi SARKIS ,  Yi HUANG ,  Renqiu WANG ,  Wanshi CHEN

IPC: H04L5/00 ,  H04L27/26 ,  H04W74/08 ,  H04W76/27 ,  H04W72/21 ,  H04W72/23

CPC classification number: H04L5/0053 ,  H04L27/2613 ,  H04W74/0833 ,  H04L5/0044 ,  H04W76/27 ,  H04W72/21 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a payload for inclusion in an uplink transmission. The UE may organize the payload into a code block group (CBG) that includes one or more code blocks (CB). The UE may map each CB of the CBG to a corresponding uplink shared channel resource unit (e.g., a physical uplink shared channel resource unit) of an uplink transmission occasion of the first UE. The uplink transmission occasion may also be shared with one or more additional UEs such that the CBG of the first UE is multiplexed with additional CBGs from the additional UEs. The UE may transmit, to a base station, the uplink transmission including each uplink shared channel resource unit on which the CBG is organized.