公开(公告)号：US20200178189A1

公开(公告)日：2020-06-04

申请号：US16781544

申请日：2020-02-04

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 ,  H04L5/00

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：US20200154356A1

公开(公告)日：2020-05-14

申请号：US16739674

申请日：2020-01-10

Applicant: QUALCOMM Incorporated

Inventor： Kapil BHATTAD ,  Mungal Singh DHANDA ,  Alberto RICO ALVARINO ,  Hao XU ,  Wanshi CHEN ,  Xiao Feng WANG

IPC: H04W52/02 ,  H04W72/08 ,  H04W76/28 ,  H04L5/00

Abstract: Techniques described herein use a wakeup signal to indicate to a user equipment (UE) whether an upcoming control channel signal resource includes information relevant to the UE. In this way, the UE can wake up to perform complex control channel signal processing only when the control channel includes signals relevant to the UE, thereby conserving battery power and resources of the UE. Such techniques are particularly suited to MTC UEs, NB-IoT UEs, and/or the like, which may communicate with a network only occasionally, and which may be located in remote locations where changing or recharging a battery is difficult.

公开(公告)号：US20200052842A1

公开(公告)日：2020-02-13

申请号：US16515692

申请日：2019-07-18

Applicant: QUALCOMM Incorporated

Inventor： Alberto RICO ALVARINO ,  Vinod RAMASWAMY ,  Gowrisankar SOMICHETTY ,  Wanshi CHEN ,  Le LIU ,  Xiao Feng WANG ,  Ayan SENGUPTA ,  Tae Min KIM ,  Vijayvaradharaj TIRUCHERAI MURALIDHARAN ,  Murali MENON

IPC: H04L5/00 ,  H04W72/04 ,  H04W76/27 ,  H04J11/00 ,  H04L25/02

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a relationship between a first set of antenna ports, used for demodulation reference signals (DMRS) associated with a machine-type communication physical downlink control channel (MPDCCH) and used for the MPDCCH, and a second set of antenna ports used for cell-specific reference signals (CRS); receive CRS on one or more antenna ports of the second set of antenna ports; and receive the MPDCCH using at least the CRS based at least in part on the relationship. Numerous other aspects are provided.

公开(公告)号：US20200037295A1

公开(公告)日：2020-01-30

申请号：US16591366

申请日：2019-10-02

Applicant: QUALCOMM Incorporated

Inventor： Alberto RICO ALVARINO ,  Madhavan Srinivasan Vajapeyam ,  Wanshi Chen ,  Hao Xu

IPC: H04W72/04 ,  H04W4/70 ,  H04W76/28 ,  H04W52/02

Abstract: In narrowband communication, channels may use repetitions in multiple subframes. SPS and DRX for the narrowband communication may not accommodate such repetitions, because repetitions for a channel may fall only partially within a DRX ON duration. An apparatus addresses this problem by determining a DRX ON duration, determining a set of subframes carrying a narrowband PDCCH candidate and determining that the DRX ON duration at least partially overlaps with the set of subframes of the narrowband PDCCH. The apparatus then refrains from decoding the first narrowband PDCCH candidate, decodes the first narrowband PDCCH candidate, or extends the DRX ON duration to include the set of subframes entirely and decoding the first narrowband PDCCH candidate carried in the set of subframes in the extended DRX ON duration. The apparatus may also determine DRX configuration parameters based on parameters of bundled channels, and handle invalid subframes for an SPS grant.

公开(公告)号：US20200029256A1

公开(公告)日：2020-01-23

申请号：US16507820

申请日：2019-07-10

Applicant: QUALCOMM Incorporated

Inventor： Alberto RICO ALVARINO ,  Le LIU ,  Umesh PHUYAL ,  Mungal Singh DHANDA ,  Raghavendra Shyam ANANDA ,  Srikanth MENON

IPC: H04W36/00 ,  H04W36/08 ,  H04W68/00 ,  H04W72/04 ,  H04W76/28 ,  H04W24/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive information indicating whether measurement is permitted on a non-anchor carrier; and selectively perform a measurement on at least one of the non-anchor carrier or an anchor carrier, based at least in part on the information indicating whether the measurement is permitted on the non-anchor carrier. Numerous other aspects are provided.

公开(公告)号：US20200022035A1

公开(公告)日：2020-01-16

申请号：US16450771

申请日：2019-06-24

Applicant: QUALCOMM Incorporated

Inventor： Prasad Reddy KADIRI ,  Amer CATOVIC ,  Umesh PHUYAL ,  Masato KITAZOE ,  Karthika PALADUGU ,  Alberto RICO ALVARINO

IPC: H04W36/00 ,  H04L29/06

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a source base station (BS), an indication that the UE is to perform a conditional handover from the source BS to a target BS and is to perform at least one of: a two protocol stack handover from the source BS to the target BS or a dual connectivity handover from the source BS to the target BS. The UE may perform the conditional handover and at least one of the two protocol stack handover or the dual connectivity handover based at least in part on the indication. Numerous other aspects are provided.

公开(公告)号：US20190319698A1

公开(公告)日：2019-10-17

申请号：US16453940

申请日：2019-06-26

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/26 ,  H04L5/02 ,  H04L5/14 ,  H04L5/24 ,  H04W72/04 ,  H04J3/06 ,  H04W4/70 ,  H04L5/00

Abstract: A UE may determine a frame structure for narrowband communications, the frame structure corresponding to one frame structure from a group of TDD frame structures of different downlink and uplink subframe configurations. The UE receives configuration information indicating a first carrier to monitor for a BCH and/or a SIB1. Then, the UE receives a PSS, an SSS, and the BCH and/or the SIB1 using the frame structure determined for the narrowband communications. The first carrier that is used to receive the BCH and/or the SIB1 may be different from a second carrier used to receive one or more of the PSS or the SSS.

公开(公告)号：US20190313298A1

公开(公告)日：2019-10-10

申请号：US16374682

申请日：2019-04-03

Applicant: QUALCOMM Incorporated

Inventor： Alberto RICO ALVARINO ,  Aziz GHOLMIEH ,  Umesh PHUYAL ,  Prasad KADIRI

IPC: H04W36/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may provide information identifying a band combination capability for carrier aggregation during a handover of the UE, wherein the band combination capability identifies a plurality of bands or carriers; and perform the handover based at least in part on the information identifying the band combination capability, wherein at least one first band or carrier, of the plurality of bands or carriers, is used for a source base station of the handover and at least one second band or carrier, of the plurality of bands or carriers, is used for a target base station of the handover. Numerous other aspects are provided.

公开(公告)号：US20190297611A1

公开(公告)日：2019-09-26

申请号：US16439594

申请日：2019-06-12

Applicant: QUALCOMM Incorporated

Inventor： Alberto RICO ALVARINO ,  Wanshi CHEN ,  Hao XU

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/12 ,  H04W52/02

Abstract: Various devices, methods, and processes are provided for handling conflicting and/or redundant power control and triggering information for transmitting reference signal(s) such as sounding reference signal (SRS) using carrier aggregation (CA). A user equipment (UE) receives a first downlink control information (DCI) and a second DCI including SRS control information that is in conflict with that of the first DCI, for controlling SRS transmission on a component carrier (CC). The UE determines a resolution to reconcile the conflict between the DCIs. Then the UE can transmit an SRS on the CC in accordance with the resolution.

公开(公告)号：US20190239220A1

公开(公告)日：2019-08-01

申请号：US16369308

申请日：2019-03-29

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0446 ,  H04L5/0046 ,  H04L5/0048 ,  H04L27/2078

Abstract: Aspects of the present disclosure provide techniques for uplink (UL) data channel design. An example method is provided for operations which may be performed by a first apparatus. The example method generally comprises determining a number of pilot symbols to transmit for one or more slots of a first subframe based, at least in part, on a coverage enhancement (CE) level, and transmitting at least one uplink data channel having the determined number of pilot symbols in the one or more slots of the first subframe.