公开(公告)号：US10575285B2

公开(公告)日：2020-02-25

申请号：US15224877

申请日：2016-08-01

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Peter Gaal ,  Renqiu Wang

IPC: H04W72/04 ,  H04W74/00 ,  H04W72/12 ,  H04W28/18 ,  H04L12/805 ,  H04W28/24 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04W76/27 ,  H04L5/00

Abstract: Different control information formats offer tradeoffs between performance for a UE and multiplexing capability for different UEs. In one aspect, a user equipment (UE) determines a first threshold to apply in selecting a format from a plurality of formats and uses the format for a first transmission of control information. The first threshold to apply in the selection of the format is determined from a set of possible values with the UE determining a first size of a first payload for the first transmission and selecting a first format for the first transmission of control information based on the first size and the first threshold. The threshold may be configurable by a base station and can reflect channel conditions prevailing at the UE and/or the need for a multiplexing capability associated with different formats.

公开(公告)号：US20200053811A1

公开(公告)日：2020-02-13

申请号：US16534694

申请日：2019-08-07

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Tingfang Ji ,  John Edward Smee ,  Masato Kitazoe ,  Keiichi Kubota ,  Peter Gaal ,  Joseph Binamira Soriaga ,  Hung Dinh Ly ,  Valentin Alexandru Gheorghiu ,  Renqiu Wang

IPC: H04W76/18 ,  H04L5/00 ,  H04W76/27 ,  H04W72/04 ,  H04W74/08 ,  H04L27/26

Abstract: Methods, systems, and devices for wireless communications are described that provide for configuration of channel bandwidth that may be specific to a particular user equipment (UE). A UE may be configured with a channel bandwidth that is less than or equal to a channel bandwidth of the serving base station, and may also be different than a channel bandwidth of one or more other UEs that are served by the base station. The base station may signal the UE-specific channel bandwidth in UE-specific signaling, such as UE-specific radio resource control (RRC) signaling.

公开(公告)号：US20200022136A1

公开(公告)日：2020-01-16

申请号：US16579472

申请日：2019-09-23

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Hao Xu ,  Wei Zeng ,  Jing Jiang ,  Tingfang Ji

IPC: H04W72/04 ,  H04L12/24 ,  H04L5/26 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communication are described that provide for uplink channel multiplexing and waveform selection. Uplink channels to be transmitted from one or more user equipment (UEs) to a base station are multiplexed together or separately into an uplink subframe. Each UE is capable of using different waveforms to transmit different channels. Reference signals are communicated according to an RS pattern, which is symmetric across uplink and downlink channels.

公开(公告)号：US10524233B2

公开(公告)日：2019-12-31

申请号：US15693197

申请日：2017-08-31

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Seyong Park ,  Tao Luo ,  Wei Zeng ,  Hao Xu ,  Peter Gaal ,  Yi Huang ,  Renqiu Wang

IPC: H04W72/04 ,  H04L5/00 ,  H04B7/06 ,  H04L27/26 ,  H04B7/26

Abstract: Some techniques and apparatuses described herein may assign resource elements of a particular resource block for transmission by two or more different antennas in a fashion such that the symbols are interleaved in frequency and/or in time, which improves frequency diversity of the two or more different antennas, thereby improving uplink performance of the UE. In some aspects, when the two or more resource blocks are contiguous, then each antenna may produce an interleaved frequency division multiple access (IFDMA) waveform, which may maintain peak to average power ratio (PAPR) properties of a single channel FDMA transmission. Thus, some techniques and apparatuses described herein may achieve transmit diversity and/or frequency diversity of a stream of symbols on two or more antennas without significantly increasing the PAPR of the stream of symbols.

公开(公告)号：US10448385B2

公开(公告)日：2019-10-15

申请号：US15797729

申请日：2017-10-30

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Wei Zeng ,  Hao Xu ,  Renqiu Wang

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

Abstract: Various aspects include a method and an apparatus for receiving a uplink (UL) short burst at an eNB, by determining, at the eNB, one or more tone assignments for one or more channels of the UL short burst, wherein the one or more channels of the UL short burst include a sounding reference signal (SRS), a demodulation reference signal (DMRS), a physical uplink control channel (PUCCH), or a physical uplink shared channel (PUSCH), transmitting the one or more tone assignments to the UE, and receiving the UL short burst from the UE, wherein the UL short burst is generated at the UE based at least on the one or more tone assignments transmitted from the eNB. Methods may include transmitting a uplink (UL) short burst from a user equipment (UE).

公开(公告)号：US10420044B2

公开(公告)日：2019-09-17

申请号：US15839074

申请日：2017-12-12

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Amir Aminzadeh Gohari ,  Renqiu Wang ,  Yi Huang ,  Hao Xu

IPC: H04W52/36 ,  H04W52/14 ,  H04W52/34 ,  H04W72/12 ,  H04W52/26 ,  H04W72/04 ,  H04W24/10 ,  H04L5/00

Abstract: Wireless communications systems and methods related to improve control reporting latency are provided. A wireless communication device receives, from a first link in a first time interval, first control information associated with a second link and the first time interval. The wireless communication device transmits, via the second link in the first time interval, a control report associated with the second link based on a report configuration that is independent from the first control information. The report configuration is associated with a waveform type. The wireless communication device receives, from the first link in a second time interval following the first time interval, second control information that is dependent on the control report. The report configuration includes a power headroom (PHR) report configuration. The PHR report configuration includes a reference PHR report configuration. The PHR report configuration includes a delayed PHR report configuration.

公开(公告)号：US20190238367A1

公开(公告)日：2019-08-01

申请号：US16263250

申请日：2019-01-31

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Renqiu Wang ,  Seyong Park ,  Naga Bhushan ,  Jay Kumar Sundararajan ,  Joseph Binamira Soriaga ,  Tingfang Ji

IPC: H04L25/02 ,  H04L27/227 ,  H04J13/00

CPC classification number: H04L25/0204 ,  H03M13/1505 ,  H04J13/0014 ,  H04J13/0033 ,  H04J13/0059 ,  H04L27/227

Abstract: Methods, systems, and devices for wireless communications are described that provide for concurrent reference signal transmissions using common resources, such as demodulation reference signal (DMRS) transmissions, from a number of non-orthogonal multiple access (NOMA) transmitters. Different transmitters may use different sequences for reference signal transmissions, which may allow a receiver, such as a wireless base station, to decode the reference signal transmissions for each NOMA transmitter and perform channel estimation for each NOMA transmitter. The reference signal transmissions may be asynchronous with a bounded timing offset or quasi-synchronous, and the reference signal sequence selection may provide for relatively reliable channel estimation and coherent demodulation.

公开(公告)号：US20190207730A1

公开(公告)日：2019-07-04

申请号：US16227803

申请日：2018-12-20

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Wei Yang ,  Yi Huang ,  Renqiu Wang ,  Sony Akkarakaran ,  Xiao Feng Wang ,  Peter Gaal

IPC: H04L5/00 ,  H04L27/26

CPC classification number: H04L5/0048 ,  H04J13/0055 ,  H04L5/0051 ,  H04L5/0091 ,  H04L27/261 ,  H04L27/2613 ,  H04L27/2614 ,  H04L27/2636 ,  H04L27/3444

Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device may identify a set of allocated resource blocks and a number of the allocated resource blocks. The transmitting device may determine a bit sequence length corresponding to the number of allocated resource blocks. The transmitting device may generate a reference signal based on a bit sequence having the bit sequence length and transmit the reference signal within the allocated resource blocks. The transmitting device may modulate the bit sequence using a π/2 binary phase shift keying modulation scheme. The transmitting device may modulate a data bit sequence using the same modulation scheme to generate a modulated data bit sequence, where a peak to average power ratio (PAPR) of tones transporting the modulated data bit sequence satisfies a PAPR threshold and a PAPR of tones transporting the reference signal also satisfies the PAPR threshold.

公开(公告)号：US10327232B2

公开(公告)日：2019-06-18

申请号：US15245640

申请日：2016-08-24

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Wanshi Chen ,  Alberto Rico Alvarino ,  Hao Xu ,  Peter Gaal ,  Seyed Ali Akbar Fakoorian ,  Madhavan Srinivasan Vajapeyam

IPC: H04W74/08 ,  H04W72/04 ,  H04L5/00 ,  H04B7/06 ,  H04W72/12 ,  H04J13/00

Abstract: Techniques are described for wireless communication. A method for wireless communication at a base station includes identifying time resources and frequency resources for narrowband communication in a plurality of subframes, identifying a plurality of user equipment (UE) devices, allocating a first portion of the time resources and the frequency resources to an uplink (UL) channel to carry UL control information, and allocating resources of the UL channel to the identified UE devices. A method for wireless communication at a UE device includes identifying time resources and frequency resources for narrowband communication in a plurality of subframes, receiving an indication of at least a first portion of the time resources and the frequency resources allocated to a UL channel to carry UL control information for the UE device, and transmitting one or both of downlink acknowledgements (ACKs) and downlink non-acknowledgements (NAKs) on the UL channel.

公开(公告)号：US20190182002A1

公开(公告)日：2019-06-13

申请号：US16272407

申请日：2019-02-11

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.