公开(公告)号：US20190059012A1

公开(公告)日：2019-02-21

申请号：US16104333

申请日：2018-08-17

Applicant: QUALCOMM Incorporated

Inventor： Wooseok NAM ,  Tao LUO ,  Alexandros MANOLAKOS ,  Peter GAAL ,  Juergen CEZANNE ,  Heechoon LEE

IPC: H04W24/10 ,  H04W24/08 ,  H04L5/00 ,  H04W56/00 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for multiplexing channel state information (CSI) reference signals (CSI-RSs) and synchronization signals in wireless communications systems operating according to new radio (NR), e.g., 5th generation (5G), techniques. An exemplary method includes sampling subcarriers of a synchronization signal (SS) block based on a frequency density of channel state information (CSI) reference signals (CSI-RSs) multiplexed in a symbol period with the SS block, and performing at least one of: measuring at least one of reference signal received power (RSRP) or CSI, based on the sampled subcarriers and the CSI-RSs, or reporting at least one of the RSRP or the CSI, based on the sampled subcarriers and the CSI-RSs.

公开(公告)号：US20190053228A1

公开(公告)日：2019-02-14

申请号：US16058765

申请日：2018-08-08

Applicant: QUALCOMM Incorporated

Inventor： Sony AKKARAKARAN ,  Tao LUO

IPC: H04W72/04 ,  H04W72/02

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine at least one of a granularity or range of a timing adjustment value based at least in part on at least one of a timing adjustment command indicating the granularity, configuration information indicating the granularity, information regarding a communication, carrier, or band associated with the user equipment, or a combination thereof; and/or perform timing adjustment based at least in part on at least one of the granularity or the range of the timing adjustment value. Numerous other aspects are provided.

公开(公告)号：US20190044593A1

公开(公告)日：2019-02-07

申请号：US16053547

申请日：2018-08-02

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin JOHN WILSON ,  Tao LUO ,  June NAMGOONG ,  Sony AKKARAKARAN ,  Xiao Feng WANG ,  Sumeeth NAGARAJA ,  Juan MONTOJO ,  Shengbo CHEN ,  Kaushik CHAKRABORTY ,  Wooseok NAM

IPC: H04B7/06 ,  H04W72/04 ,  H04W72/08

Abstract: Aspects of the present disclosure relate to deriving spatial receive parameters for quasi-colocation at a user equipment (UE). An exemplary method generally includes receiving a plurality of beams from a base station in a plurality of coarse directions, determining, based on the plurality of beams, a first spatial colocation parameter, transmitting an indication of a coarse direction associated with a beam having a highest receive strength of the plurality of beams, receiving a plurality of second beams from the base station based on the indication, the plurality of second beams having a narrower beam width than the plurality of beams and covering a beam width of the beam associated with the indicated coarse direction, determining, based on the plurality of second beams, a second spatial colocation parameter, transmitting an indication of the second beam having a highest receive strength, and refining at least one of the first or second spatial colocation parameters.

公开(公告)号：US20190029049A1

公开(公告)日：2019-01-24

申请号：US16037693

申请日：2018-07-17

Applicant: QUALCOMM Incorporated

Inventor： Sony AKKARAKARAN ,  Makesh Pravin JOHN WILSON ,  Tao LUO ,  Sumeeth NAGARAJA

IPC: H04W74/08 ,  H04W72/04 ,  H04W72/08

Abstract: Certain aspects of the present disclosure provide techniques for random-access channel (RACH) communication. For example, certain aspects provide a method for providing an indication, via a first uplink transmission, of a preferred beam for a subsequent (uplink or downlink) transmission.

公开(公告)号：US20190028252A1

公开(公告)日：2019-01-24

申请号：US16040134

申请日：2018-07-19

Applicant: QUALCOMM Incorporated

Inventor： Sony AKKARAKARAN ,  Tao LUO ,  Alexandros MANOLAKOS ,  Peter GAAL ,  Juan MONTOJO

IPC: H04L5/00 ,  H04J11/00

Abstract: Certain aspects of the present disclosure relate to methods and apparatus methods and apparatus for multiplexing demodulation reference signals (DMRS) and synchronization signals (SS) in new radio (NR). An exemplary method that may be performed by a base station (BS) includes determining transmission resources, in a set of slots, to be used for first demodulation reference signals (DMRS), based on whether synchronization signals (SS) are to be transmitted in the set of slots, and transmitting the first DMRS using the transmission resources in the set of slots.

公开(公告)号：US20190028174A1

公开(公告)日：2019-01-24

申请号：US16040178

申请日：2018-07-19

Applicant: QUALCOMM Incorporated

Inventor： Kaushik CHAKRABORTY ,  Tao LUO ,  Wooseok NAM ,  Sumeeth NAGARAJA ,  Sony AKKARAKARAN ,  Makesh Pravin JOHN WILSON ,  Xiao Feng WANG ,  Shengbo CHEN ,  Juan MONTOJO

IPC: H04B7/08 ,  H04B7/06 ,  H04B7/0408 ,  H04L27/26

Abstract: Aspects of the present disclosure relate to techniques that may enhance radio link failure (RLF) procedures. In some cases, a UE may perform radio link monitoring (RLM) based on reference signals (RS) transmitted using a first set of beams, perform beam failure recovery (BFR) monitoring based on transmissions using a second set of beams, and adjust one or more radio link failure (RLF) parameters based on both the RLM monitoring and the BFR monitoring.

公开(公告)号：US20190020448A1

公开(公告)日：2019-01-17

申请号：US16033598

申请日：2018-07-12

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin JOHN WILSON ,  Tao LUO ,  Sony AKKARAKARAN ,  Sumeeth NAGARAJA

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

Abstract: Certain aspects of the present disclosure relate to communication systems, and more particularly, to sending and monitoring for a decoding candidate. Certain aspects provide a method for decoding information sent via a wireless transmission. The method generally includes receiving an indication of an association between a first decoding candidate and a second decoding candidate, monitoring the first decoding candidate in a search space of a first set of resources, the first decoding candidate received from a wireless node, and monitoring the second decoding candidate in a search space of a second set of resources, the second decoding candidate received from the wireless node, wherein the monitoring of the second decoding candidate is based on the association between the first and second decoding candidates.

公开(公告)号：US20180368125A1

公开(公告)日：2018-12-20

申请号：US15997490

申请日：2018-06-04

Applicant: QUALCOMM Incorporated

Inventor： Juergen CEZANNE ,  Bilal SADIQ ,  Tao LUO ,  Sundar SUBRAMANIAN ,  Muhammad Nazmul ISLAM ,  Junyi LI ,  Vasanthan RAGHAVAN ,  Navid ABEDINI ,  Sumeeth NAGARAJA ,  Raghu CHALLA

IPC: H04W72/04 ,  H04B7/06 ,  H04W76/10

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine whether to perform a beam pair refinement procedure with regard to the UE and a base station; and/or transmit, to the base station, information regarding whether to perform the beam pair refinement procedure. In some aspects, a base station may receive, from a UE, information regarding a beam pair refinement procedure with regard to the UE; and/or perform the beam pair refinement procedure based at least in part on the information. Numerous other aspects are provided.

公开(公告)号：US20180368088A1

公开(公告)日：2018-12-20

申请号：US16005739

申请日：2018-06-12

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth NAGARAJA ,  Tao LUO ,  Muhammad Nazmul ISLAM ,  Juergen CEZANNE ,  Chinmay VAZE ,  Raghu Narayan CHALLA ,  Alexei Yurievitch GOROKHOV

IPC: H04W56/00 ,  H04L5/00 ,  H04W72/04

Abstract: According to certain aspects of the present disclosure, indicating which neighbor cells are synchronous or asynchronous with a serving cell may allow a UE to determine whether it can derive neighbor cell RS timing based on the serving cell timing.

公开(公告)号：US20180367362A1

公开(公告)日：2018-12-20

申请号：US16003456

申请日：2018-06-08

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Tamer KADOUS ,  Tao LUO ,  Xiao Feng WANG ,  Jing LEI

IPC: H04L27/34 ,  H04L27/26 ,  H04J1/00

Abstract: In order to maintain flexible system bandwidth and a flexible center frequency, without requiring a cyclic prefix or guard interval, a transmitter apparatus transmits a reference signal based on a single carrier waveform having a mixed symbol structure, in reference signal symbols using at least one of a cyclic prefix and a guard interval and transmits data based on the single carrier waveform without the cyclic prefix or the guard interval. The data may be based on input data processed using overlapping FFT windows, and an amount of overlap between the FFT windows may be configurable by the transmitter or the receiver. An apparatus receiving the downlink transmission comprising data based on a single carrier waveform may process the data based on overlapping FFT windows.