公开(公告)号：US20190165911A1

公开(公告)日：2019-05-30

申请号：US16259941

申请日：2019-01-28

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Peter GAAL ,  Hao XU ,  Wanshi CHEN ,  Yongbin WEI ,  Xiao Feng WANG ,  Renqiu WANG ,  Seyed Ali Akbar FAKOORIAN ,  Madhavan Srinivasan VAJAPEYAM ,  Alberto RICO ALVARINO ,  Juan MONTOJO

IPC: H04L5/00 ,  H04W56/00 ,  H04L27/26 ,  H04J11/00 ,  H04W72/04

Abstract: Aspects of the present disclosure provide techniques for design of synchronization signals for narrowband operation, which can be used for stand-alone/in-band/guard-band deployment. An example method is provided for operations which may be performed by a base station (BS). The example method generally includes generating a primary synchronization signal (PSS) utilizing a first code sequence and a cover code applied to the first code sequence over a first number of symbols within one or more subframes, generating a secondary synchronization signal (SSS) based on a second code sequence over a second number of symbols within one or more subframes, and transmitting the PSS and the SSS in the first and second subframes to a first type of a user equipment (UE) that communicates on one or more narrowband regions of wider system bandwidth.

公开(公告)号：US20190021080A1

公开(公告)日：2019-01-17

申请号：US16030348

申请日：2018-07-09

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Jing SUN ,  Tamer KADOUS

IPC: H04W72/04 ,  H04W16/28

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. More particularly, aspects of the present disclosure provide multiplexing schemes which may be suited for the single carrier waveform. For example, some techniques and apparatuses described herein permit multiplexing of multiple, different data streams without destroying the single-carrier properties of the waveform. Additionally, or alternatively, some techniques and apparatuses described herein may provide unequal error protection, unequal bandwidth allocation, and/or the like as part of the multiplexing schemes. Examples of multiplexing schemes described herein include in-phase/quadrature (I/Q) multiplexing, superposition quadrature amplitude modulation (QAM) based at least in part on layered bit mapping, polarization division multiplexing of QAM with superposition coding, and frequency division multiplexing using UE-specific beams.

公开(公告)号：US20190020528A1

公开(公告)日：2019-01-17

申请号：US16030327

申请日：2018-07-09

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Jing SUN ,  Tamer KADOUS

IPC: H04L27/36 ,  H04L27/38

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. More particularly, aspects of the present disclosure provide multiplexing schemes which may be suited for the single carrier waveform. For example, some techniques and apparatuses described herein permit multiplexing of multiple, different data streams without destroying the single-carrier properties of the waveform. Additionally, or alternatively, some techniques and apparatuses described herein may provide unequal error protection, unequal bandwidth allocation, and/or the like as part of the multiplexing schemes. Examples of multiplexing schemes described herein include in-phase/quadrature (I/Q) multiplexing, superposition quadrature amplitude modulation (QAM) based at least in part on layered bit mapping, polarization division multiplexing of QAM with superposition coding, and frequency division multiplexing using UE-specific beams.

公开(公告)号：US20170265193A1

公开(公告)日：2017-09-14

申请号：US15348789

申请日：2016-11-10

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Hao XU ,  Peter GAAL ,  Alberto RICO ALVARINO ,  Xiao Feng WANG ,  Seyed Ali Akbar FAKOORIAN ,  Jing LEI

IPC: H04W72/04 ,  H04W4/06

CPC classification number: H04W72/0453 ,  H04L1/08 ,  H04L27/2607 ,  H04L67/12 ,  H04L2001/0093 ,  H04W4/06 ,  H04W4/70 ,  H04W72/005 ,  H04W72/0446 ,  H04W72/14

Abstract: NB wireless communication involves numerous challenges. A limited frequency dimension may need to be shared by multiple users. At times, large data transmissions, including multiple TBs of data may be transmitted using NB communication, and it may be important that each TB be successfully received by the users. The apparatus may transmit data comprising a plurality of TBs in a narrow band communications system, including repeating a transmission of the plurality of TBs, using any of a number of repetition patterns. The apparatus may use error correction encoding across multiple TBs. The transmission may be a single cell transmission or a multi-cell transmission.

公开(公告)号：US20170230213A1

公开(公告)日：2017-08-10

申请号：US15293920

申请日：2016-10-14

Applicant: QUALCOMM Incorporated

Inventor： Xiao Feng WANG ,  Alberto RICO ALVARINO ,  Peter GAAL ,  Wanshi CHEN ,  Hao XU ,  Seyed Ali Akbar FAKOORIAN ,  Jing LEI ,  Renqiu WANG

IPC: H04L27/18 ,  H04L27/26 ,  H04L5/00

CPC classification number: H04L27/18 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/005 ,  H04L27/2614 ,  H04L27/265

Abstract: The apparatus enables pilot signals, whether single tone or multiple tone, that achieve a very low PAPR. After receiving an allocation for multiple tones, the apparatus determines a pilot signal for transmission. The apparatus may select tones from the allocation for transmission of a pilot signal based on a pilot pattern. The pilot pattern may comprise a tone sequence that identifies a sequences of tones, wherein each tone in the tone sequence of identifies one tone of multiple tones for transmission of a pilot signal during a given pilot symbol period. The pilot signal may also comprise a signal sequence. The apparatus may generate a set of multi-tone modulated pilot sequences, select a pilot sequence based on a cross-correlation property, and transmit a pilot signal using multiple tones of the allocation using the selected pilot sequence.

公开(公告)号：US20170208592A1

公开(公告)日：2017-07-20

申请号：US15387970

申请日：2016-12-22

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04W72/08 ,  H04W4/00 ,  H04L5/00

CPC classification number: H04W72/0453 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0092 ,  H04W4/70 ,  H04W72/087 ,  H04W88/02 ,  H04W88/08

Abstract: Aspects of the present disclosure provide techniques for design of channel raster for narrowband operation. One example method, performed by a base station, generally includes determining, based on one or more conditions, an exact frequency location of one channel of one or more channels to perform narrowband communications with a user equipment. The method also includes transmitting an indication of the one or more conditions to the user equipment. The method further includes communicating with the UE, based at least in part on the exact frequency location of the one channel.

公开(公告)号：US20170135052A1

公开(公告)日：2017-05-11

申请号：US15245498

申请日：2016-08-24

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Hao XU ,  Peter GAAL ,  Xiaofeng WANG ,  Wanshi CHEN ,  Yongbin WEI ,  Juan MONTOJO ,  Alberto RICO ALVARINO

IPC: H04W56/00 ,  H04W16/32 ,  H04J13/00

CPC classification number: H04W56/001 ,  H04J13/0062 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2613 ,  H04L27/2659 ,  H04L27/266 ,  H04W16/32 ,  H04W88/08 ,  H04W88/12

Abstract: Aspects of the present disclosure provide techniques for design of synchronization signals for narrowband operation and other clean-slate, OFDM based systems such as enhanced component carrier (eCC) systems. An example method is provided for operations which may be performed by a BS to generate and transmit a dual-layer PSS, and correspondingly, techniques for a UE to detect the dual-layer PSS. The PSS may be generated utilizing a binary code cover and at least one sequence applied to a number of symbols within one or more subframes of a frame.

公开(公告)号：US20250097975A1

公开(公告)日：2025-03-20

申请号：US18470372

申请日：2023-09-19

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Kianoush HOSSEINI ,  Kazuki TAKEDA

IPC: H04W74/04

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques may enable a user equipment (UE) to reuse a same waveform type for both of a first contention-free random access (CFRA) message and an acknowledgement (ACK) message for a random access response (RAR) message from a network entity. The UE may transmit the first CFRA message using a first waveform type and via a first resource with a first resource index, and may retransmit the first waveform type via a second resource with the first resource index in response to receiving the RAR message. In some examples, the UE may not receive the RAR message. In such examples, the UE may not retransmit the waveform. That is, if the network entity does not receive the response to the RAR message, the network entity may interpret the lack of response as a negative acknowledgement (NACK).

公开(公告)号：US20250071597A1

公开(公告)日：2025-02-27

申请号：US18790990

申请日：2024-07-31

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Kazuki TAKEDA ,  Peter GAAL

IPC: H04W28/02 ,  H04L5/00 ,  H04W72/0453 ,  H04W72/1273

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may determine resource allocation information when operating on an unrestricted bandwidth part (BWP) that is not configured with a control resource set (CORESET) associated with system information (SI) acquisition. For example, the UE may receive first control information indicating a first CORESET associated with SI acquisition. The UE may receive second control information indicating an unrestricted BWP that is configured with a second CORESET that is different than the first CORESET. The unrestricted BWP may have a bandwidth that is equal to, greater than, or less than the bandwidth of the first CORESET. The UE may determine a resource indicator value (RIV) to include in a frequency domain resource allocation (FDRA) field for the unrestricted BWP. The UE may communicate, via the unrestricted BWP, based on the RIV.

公开(公告)号：US20250056664A1

公开(公告)日：2025-02-13

申请号：US18930633

申请日：2024-10-29

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Peter GAAL ,  Masato KITAZOE ,  Wanshi CHEN

IPC: H04W76/28

Abstract: Certain aspects of the present disclosure provide techniques for wireless communication by a user equipment (UE), generally including receiving, from a network entity, a configuration for a first downlink (DL) bandwidth part (BWP), a first control resource set (CORESET) configured on the first DL BWP, and one or more first search space (SS) sets within the first CORESET, receiving, from the network entity, a configuration for a second downlink BWP, a second CORESET configured on the second DL BWP, and one or more second SS sets within the second CORESET, receiving signaling configuring the UE for physical downlink control channel (PDCCH) monitoring adaptation, and monitoring for PDCCHs, subject to the PDCCH monitoring adaptation, when performing one or more idle mode or inactive mode procedures on at least one of the first DL BWP or the second DL BWP.