公开(公告)号：US20190327735A1

公开(公告)日：2019-10-24

申请号：US16460739

申请日：2019-07-02

Applicant: QUALCOMM Incorporated

Inventor： Gowrisankar SOMICHETTY ,  Kapil BHATTAD ,  Alberto RICO ALVARINO ,  Xiao Feng WANG ,  Manikandan CHANDRASEKAR

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/14 ,  H04L5/14 ,  H04L1/00 ,  H04L1/18

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine a TDD frame structure of a group of TDD frame structures for narrowband communications. The apparatus may transmit a series of repetitions of a narrowband physical downlink channel using the narrowband TDD frame structure. In one aspect, a first portion of repetitions from the series of repetitions may be transmitted in one or more first sets of downlink subframes using a first scrambling sequence. In one aspect, a second portion of repetitions from the series of repetitions may be transmitted in one or more second sets of downlink subframes using a second scrambling sequence.

公开(公告)号：US20190261315A1

公开(公告)日：2019-08-22

申请号：US16280271

申请日：2019-02-20

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Ananta Narayanan THYAGARAJAN ,  Kapil BHATTAD ,  Jing SUN

IPC: H04W72/00 ,  H04W56/00 ,  H04W74/08 ,  H04W8/24 ,  H04J11/00 ,  H04L27/26

Abstract: There is a large chunk of unlicensed/shared high-frequency spectrum above the 5G radio frequency that begin to be utilized for 5G applications. 5G currently supports a limited number of waveforms. The other waveforms may be beneficial to the shared high-frequency bands, such as SC-QAM/SC-FDM for downlink transmission and SC-QAM for uplink transmission to improve link budget and to reduce complexity. A method, apparatus, and computer-readable medium at a user equipment (UE) are disclosed to determine a first waveform for a broadcast channel, based in part on a received synchronization block signal from a base station. Then the UE further determines a second waveform for at least one signaling channel, based in part on the received broadcast channel.

公开(公告)号：US20190254063A1

公开(公告)日：2019-08-15

申请号：US16276249

申请日：2019-02-14

Applicant: QUALCOMM Incorporated

Inventor： Kapil BHATTAD ,  Ananta Narayanan Thyagarajan ,  Xiaoxia Zhang ,  Jing Sun

IPC: H04W72/14 ,  H04W72/04 ,  H04L5/14 ,  H04L1/16 ,  H04L5/00 ,  H04W72/12

Abstract: Techniques for dynamically controlling long physical uplink control channel (PUCCH) transmission are described. In an aspect, the disclosure describes a method for receiving a grant to transmit a long PUCCH, determining a grant type of the grant, wherein the grant type is one of a periodic grant or an aperiodic grant, determining a slot type of the slot to transmit the long PUCCH, and transmitting the long PUCCH over one or more slots based on the grant, the determined slot type, and the determined grant type. In another aspect, the disclosure describes a method for generating a triggering signal to transmit to a user equipment (UE), the triggering signal indicating to the UE to transmit a PUCCH, transmitting the triggering signal to the UE, and receiving the long PUCCH in response to the triggering signal.

公开(公告)号：US20180227088A1

公开(公告)日：2018-08-09

申请号：US15886244

申请日：2018-02-01

Applicant: QUALCOMM Incorporated

Inventor： Kapil BHATTAD ,  Alberto RICO ALVARINO

IPC: H04L1/18 ,  H04L5/00 ,  H04L5/16

Abstract: Techniques and apparatus for hybrid automatic retransmission request (HARQ) acknowledgement (ACK) bundling in half duplex frequency division duplexing (HD-FDD) systems are provided. One technique includes determining ACK parameter(s) to be used for acknowledging a bundled transmission that includes instance(s) of a channel across subframe(s). An indication of the ACK parameter(s) is signaled to a user equipment (UE). The ACK parameter(s) include a first ACK parameter that conveys a size of the bundled transmission and a second ACK parameter that conveys an amount of time for the UE to delay acknowledging a data transmission in an instance of the channel after receiving the data transmission. The UE may acknowledge the bundled transmission in accordance with the ACK parameter(s).

公开(公告)号：US20180131483A1

公开(公告)日：2018-05-10

申请号：US15655577

申请日：2017-07-20

Applicant: QUALCOMM Incorporated

Inventor： Gowrisankar SOMICHETTY ,  Kapil BHATTAD

IPC: H04L5/00 ,  H04W72/00

CPC classification number: H04L5/0012 ,  H04B1/713 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0091 ,  H04L5/0094 ,  H04W72/005

Abstract: Various features related to frequency hopping for broadcast/multicast transmissions for narrow band devices are described. To exploit frequency diversity, multicast transmissions may be frequency hopped. In an aspect, a UE maybe configured to receive a signal, e.g., from a base station, including at least one of a first hopping indicator indicating whether frequency hopping is enabled for a multicast control channel or a second hopping indicator indicating whether frequency hopping is enabled for a multicast traffic channel, and determine whether frequency hopping is enabled for the at least one of the multicast control or traffic channel based on the received signal. The UE may further determine at least one hopping pattern for receiving multicast transmissions in the at least one of the multicast control channel or the multicast traffic channel when the frequency hopping is enabled, and receive the multicast transmissions based on the determined at least one hopping pattern.

公开(公告)号：US20170250787A1

公开(公告)日：2017-08-31

申请号：US15499725

申请日：2017-04-27

Applicant: QUALCOMM Incorporated

Inventor： Stefan GEIRHOFER ,  Tao LUO ,  Wanshi CHEN ,  Peter GAAL ,  Hao XU ,  Kapil BHATTAD ,  Tingfang JI

IPC: H04L5/00 ,  H04W72/04 ,  H04B7/06

CPC classification number: H04L5/0051 ,  H04B7/024 ,  H04B7/0626 ,  H04L1/0026 ,  H04L1/0687 ,  H04L1/0693 ,  H04L5/0023 ,  H04L5/0048 ,  H04W24/10 ,  H04W72/042 ,  H04W84/042

Abstract: Certain aspects of the present disclosure provide techniques for implicitly linking aperiodic channel state information (A-CSI) reports to CSI-reference signal (CSI-RS) resources. In an aspect, the UE may be instructed to report on specific CSI-RS resource(s) via explicit signaling in the UE grant. Other aspects disclose techniques for implicit CSI-RS resource selection by the UE that require fewer signaling resources. Instead of explicitly signaling CSI-RS resources to the UE, the UE may implicitly select CSI-RS resource for CSI feedback reporting based on information known to the UE, e.g. a subframe on which a reporting request is received. This may reduce the impact of the additional signaling in the UE grant.

公开(公告)号：US20150264610A1

公开(公告)日：2015-09-17

申请号：US14726398

申请日：2015-05-29

Applicant: QUALCOMM INCORPORATED

Inventor： Kapil BHATTAD ,  Alexei Yurievitch GOROKHOV ,  Tingfang JI ,  Ke LIU ,  Tao LUO ,  Xiliang LUO

IPC: H04W36/04 ,  H04J11/00 ,  H04W36/08 ,  H04W36/00 ,  H04W68/02 ,  H04W48/20

CPC classification number: H04W36/04 ,  H04B1/7107 ,  H04J11/0056 ,  H04W16/14 ,  H04W28/04 ,  H04W36/0083 ,  H04W36/08 ,  H04W48/20 ,  H04W68/02 ,  H04W84/045 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22 ,  Y02D70/24 ,  Y02D70/40

Abstract: An idle mode UE can RACH to a cell different from the cell paging the UE. The UE can be allocated additional time to respond to all cells in the neighborhood to identify the cell in which to RACH. Interference cancellation can occur at different rates based on whether the UE is in connected mode or idle mode. The time to respond to the page can be a function of a paging cycle. Additionally, a variable bias may promote early handoff to lower power cells and late handoff to high power cells.

Abstract translation: 空闲模式UE可以向与寻呼UE的小区不同的小区进行RACH。 UE可以被分配额外的时间来响应邻域中的所有小区，以识别在哪个RACH中的小区。 基于UE是处于连接模式还是空闲模式，干扰消除可以以不同的速率发生。 响应页面的时间可以是寻呼周期的功能。 另外，可变偏置可以促进早期切换到较低功率单元和对高功率单元的延迟切换。

公开(公告)号：US20140334434A1

公开(公告)日：2014-11-13

申请号：US14450157

申请日：2014-08-01

Applicant: QUALCOMM Incorporated

Inventor： Kapil BHATTAD ,  Yi HUANG ,  Tao LUO ,  Taesang YOO

IPC: H04L5/00

CPC classification number: H04J11/005

Abstract: Aspects of the disclosure are related to identifying whether an apparatus (e.g., base station, access point, etc.) is transmitting using a CRS based transmission scheme or a UE-RS based transmission scheme. Such detection may be necessary for PDSCH interference cancellation (IC) of a neighboring cell since a UE may not know which transmission scheme is used by the neighboring cell. For instance, the UE may know the transmission scheme of the serving cell, but the UE may not know the transmission scheme of a neighboring non-serving cell. As such, aspects of the disclosure provide for a blind detection algorithm to identify or determine a transmission mode or transmission scheme of a neighboring cell to then apply interference cancellation (IC) to an interfering signal received from the neighboring cell.

Abstract translation: 本公开的方面与识别装置（例如，基站，接入点等）是否正在使用基于CRS的传输方案或基于UE-RS的传输方案进行传输有关。 这样的检测对于相邻小区的PDSCH干扰消除（IC）可能是必要的，因为UE可能不知道相邻小区使用哪种传输方案。 例如，UE可以知道服务小区的传输方案，但是UE可能不知道相邻非服务小区的传输方案。 因此，本公开的方面提供盲检测算法来识别或确定相邻小区的传输模式或传输方案，然后将干扰消除（IC）应用于从相邻小区接收的干扰信号。

公开(公告)号：US20130315198A1

公开(公告)日：2013-11-28

申请号：US13898398

申请日：2013-05-20

Applicant: QUALCOMM Incorporated

Inventor： Raj Kumar KRISHNA KUMAR ,  Kapil BHATTAD ,  Dhananjay Ashok GORE ,  Yongbin WEI

IPC: H04W72/04

CPC classification number: H04W72/0413 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/1607 ,  H04L1/1825 ,  H04L1/1854 ,  H04L1/1867

Abstract: When a UE does not completely decode a packet transmitted from a base station, the UE may send ACK/NACK to the base station, upon which the base station may retransmit the packet based on the ACK/NACK. However, the ACK/NACK fails to provide the base station with information needed by the UE for completely decoding the packet. Accordingly, a method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a packet from a base station having a first MCS, determines information to provide to the base station, wherein the information comprises CQI relating to a channel condition and/or interference condition corresponding to time-frequency resources allocated for the received packet, and sends the information to the base station. Thereafter, the apparatus re-receives the packet from the base station, the re-received packet having a second MCS according to the information sent to the base station.

Abstract translation: 当UE不完全解码从基站发送的分组时，UE可以向基站发送ACK / NACK，基站可以基于ACK / NACK重新发送分组。 然而，ACK / NACK无法向基站提供UE需要的信息来完全解码分组。 因此，提供了一种用于无线通信的方法，装置和计算机程序产品。 该设备从具有第一MCS的基站接收分组，确定提供给基站的信息，其中该信息包括与对应于接收分组分配的时间频率资源的信道状况和/或干扰条件有关的CQI， 并将信息发送到基站。 此后，设备根据发送给基站的信息，重新接收来自基站的分组，重新接收分组具有第二MCS。

公开(公告)号：US20240163912A1

公开(公告)日：2024-05-16

申请号：US18525240

申请日：2023-11-30

Applicant: QUALCOMM Incorporated

Inventor： Mostafa KHOSHNEVISAN ,  Jing SUN ,  Xiaoxia ZHANG ,  Kapil BHATTAD

IPC: H04W72/50 ,  H04L1/00 ,  H04L1/1812 ,  H04L5/00 ,  H04W28/04 ,  H04W72/23 ,  H04W76/11

CPC classification number: H04W72/535 ,  H04L1/0061 ,  H04L1/1819 ,  H04L5/0055 ,  H04W28/04 ,  H04W72/23 ,  H04W76/11

Abstract: Methods, systems, and devices for wireless communications are described in which a user equipment (UE) may be configured with one or more semi-persistent scheduling (SPS) configurations. A base station may transmit a first downlink control information (DCI) transmission to the UE that activates an SPS configuration, and the first DCI may indicate a non-numeric feedback timeline for reporting associated acknowledgment feedback. The base station may transmit a subsequent second DCI transmission that provides feedback resources, and the UE may receive the second DCI and identify timing and resources for SPS acknowledgment feedback based on the second DCI. The UE may then transmit the acknowledgment feedback for one or more SPS transmissions in the feedback resources that are indicated by the second DCI transmission.