公开(公告)号：US20190021018A1

公开(公告)日：2019-01-17

申请号：US16021279

申请日：2018-06-28

Applicant: QUALCOMM Incorporated

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

IPC: H04W24/10 ,  H04W74/00 ,  H04W74/08 ,  H04B17/318

Abstract: Methods and apparatus are provided for configuring beam pair links during random access. A User Equipment (UE) receives, in a first message of a Random Access Channel (RACH) procedure, a request from a Base Station (BS) to report information relating to a plurality of BS beams. The UE reports, in a second message of the RACH procedure, the information relating to one or more of the plurality of BS beams in response to the request. The UE receives configuration information including information relating to one or more beam pair links configured for communication between the UE and the BS based on the reported information.

公开(公告)号：US20190013917A1

公开(公告)日：2019-01-10

申请号：US16020248

申请日：2018-06-27

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04J11/00

Abstract: Certain aspects of the present disclosure provide techniques for generating and processing demodulation reference signals transmitted with PBCH. Specifically, the techniques described herein relate to mapping DMRS tones to REs in the PBCH based on a Cell ID.

公开(公告)号：US20180376351A1

公开(公告)日：2018-12-27

申请号：US16013807

申请日：2018-06-20

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth NAGARAJA ,  Raghu Narayan CHALLA ,  Ruhua HE ,  Arvind Vardarajan SANTHANAM ,  Yong LI ,  Muhammad Nazmul ISLAM ,  Bilal SADIQ

IPC: H04W24/02 ,  H04B7/0408 ,  H04B7/08 ,  H04W36/30

Abstract: Aspects of the present disclosure relate to receiver beamforming for serving and neighbor cell measurements. An exemplary method generally includes communicating with one or more base stations using a first beam type, initiating a transition to communicating with at least one of the one or more base stations using a second beam type in response to an indication of a trigger event, and communicating with the at least one of the one or more base stations using the second beam type.

公开(公告)号：US20180368171A1

公开(公告)日：2018-12-20

申请号：US16004179

申请日：2018-06-08

Applicant: QUALCOMM Incorporated

Inventor： Kaushik CHAKRABORTY ,  Tao LUO ,  Sumeeth NAGARAJA ,  Keiichi KUBOTA ,  Makesh Pravin JOHN WILSON ,  Juan MONTOJO ,  Xiao feng WANG ,  Sony AKKARAKARAN ,  Wooseok NAM

IPC: H04W72/14 ,  H04W24/08

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine that a signal characteristic of a unicast signal is better than a signal characteristic of a broadcast signal; and/or transmit, based at least in part on the determination, a request for an update to a master information block or a minimum system information block to be provided to the user equipment using the unicast signal. In some aspects, a base station may determine that a signal characteristic of a unicast signal associated with a user equipment (UE) is better than a signal characteristic of a broadcast signal broadcasted by the base station; and/or transmit, based on the determination, an update to a master information block (MIB) or a minimum system information block (MSIB) to the UE using the unicast signal. Numerous other aspects are provided.

公开(公告)号：US20180351611A1

公开(公告)日：2018-12-06

申请号：US15946085

申请日：2018-04-05

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth NAGARAJA ,  Tao LUO ,  Kaushik CHAKRABORTY ,  Sony AKKARAKARAN ,  Makesh Pravin JOHN WILSON ,  Shengbo CHEN

IPC: H04B7/0417 ,  H04W52/02 ,  H04W56/00

CPC classification number: H04W52/0229

Abstract: A user equipment apparatus determines whether a transmission is received from a base station within a time window and skips measurement of a reference signal during a subsequent period, when a transmission is received from the base station within the time window. A base station apparatus configures a UE to monitor one or more reference signals associated with a beam pair link and transmits a first signal in a transmission to the UE. The base station determines whether the transmission is received at the UE within a time window and determines whether to transmit a reference signal, based on whether the transmission is received at the UE within the time window. Upon determining that the transmission was received at the UE, the base station may skip transmission of the reference signal or modify a time, a frequency, a power, and/or a reference signal offset for the reference signal.

公开(公告)号：US20180338253A1

公开(公告)日：2018-11-22

申请号：US15979051

申请日：2018-05-14

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth NAGARAJA ,  Peter GAAL ,  Wanshi CHEN ,  Tao LUO ,  Heechoon LEE

IPC: H04W24/08 ,  H04W88/06 ,  H04W24/10 ,  H04L25/02

CPC classification number: H04B17/382 ,  H04B17/345 ,  H04L5/0094

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for radio link monitoring with BWPs and interference measurements using communications systems operating according to new radio (NR) technologies. Certain aspects provide a method for wireless communication. The method generally includes determining one or more bandwidth parts (BWPs) for radio link monitoring (RLM) based on one or more signals; and configuring a user equipment (UE) to monitor the one or more signals on the one or more BWPs within a maximum channel bandwidth.

公开(公告)号：US20180323927A1

公开(公告)日：2018-11-08

申请号：US15970816

申请日：2018-05-03

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth NAGARAJA ,  Tao LUO ,  Sony AKKARAKARAN ,  Alexandros MANOLAKOS

IPC: H04L5/00

CPC classification number: H04L5/0048 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/0092 ,  H04L5/0098 ,  H04W36/0072

Abstract: Various aspects of the disclosure relate to techniques associated with the acquisition of reference signals. In some aspects, a network may request a user equipment (UE) to measure a timing difference between neighbor cells and use that information to generate a CSI-RS configuration. The network sends the CSI-RS configuration to the UE to enable the UE to acquire a CSI-RS from a neighbor cell. In some aspects, a network may send timing-related information to a neighbor cell and the neighbor cell uses that information to transmit a CSI-RS.

公开(公告)号：US20180294937A1

公开(公告)日：2018-10-11

申请号：US16010304

申请日：2018-06-15

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth NAGARAJA ,  Tao LUO ,  Ajay GUPTA ,  Makesh Pravin JOHN WILSON ,  Kaushik CHAKRABORTY ,  Sony AKKARAKARAN ,  Vinod Viswanatha MENON

IPC: H04L5/00 ,  H04B7/06 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04L5/0048 ,  H04B7/0617 ,  H04B7/0695 ,  H04L5/0055 ,  H04L5/006 ,  H04W88/02 ,  H04W88/08

Abstract: Apparatuses and methods of beam switching are presented. A beam switch message (BSM) is transmitted to a second device via a first beam set. The BSM includes a command to switch from communication via the first beam set to communication via a second beam set at a switch time. It is determined whether a response message is received from the second device via the first beam set, the response message indicating that the second device received the BSM. A communication is sent to the second device via the second beam set after the switch time when the response message is unreceived.

公开(公告)号：US20180287677A1

公开(公告)日：2018-10-04

申请号：US15987796

申请日：2018-05-23

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth NAGARAJA ,  Ajay GUPTA ,  Tao LUO

IPC: H04B7/04 ,  H04L25/02 ,  H04B7/08 ,  H04L5/00 ,  H04B7/06 ,  H04W24/02 ,  H04W24/10 ,  H04L27/26 ,  H04W72/12 ,  H04W88/06

CPC classification number: H04B7/0486 ,  H04B7/06 ,  H04B7/063 ,  H04B7/0695 ,  H04B7/08 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/0053 ,  H04L25/0224 ,  H04L27/26 ,  H04W24/02 ,  H04W24/10 ,  H04W72/1215 ,  H04W88/06

Abstract: Certain aspects of the present disclosure provide techniques for assisting a UE in measuring reference signals in a wireless communication system using beams. A BS may transmit, to a UE, information regarding one or more measurement gaps for measuring one or more reference signals. The BS may transmit, to the UE, additional information regarding at least one of direction information associated with the one or more reference signals or rank indication to be used by the UE to measure the one or more reference signals during the one or more measurement gaps. A UE may perform corresponding operations.

公开(公告)号：US20180279150A1

公开(公告)日：2018-09-27

申请号：US15923669

申请日：2018-03-16

Applicant: QUALCOMM Incorporated

Inventor： Linhai HE ,  Aleksandar DAMNJANOVIC ,  Gavin Bernard HORN ,  Aziz GHOLMIEH ,  Yue YANG ,  Tao LUO ,  Sumeeth NAGARAJA

IPC: H04W24/10 ,  H04W72/12

Abstract: Various techniques are proposed to enhance or expand the capabilities or usage of buffer status request (BSR) and scheduling request (SR) in new radio (NR) applications. In an implementation, techniques are proposed to extend the SR in long term evolution (LTE) baseline with additional information to help a base station (e.g., gNB) schedule faster and more efficiently. Moreover, a new BSR triggering condition is proposed to report new data based on particular events instead of being time-based. Modifications being proposed to both BSR and SR can be customized for different numerologies/transmission time intervals (TTIs). Modifications being proposed to SR can also be used to indicate a user equipment (UE) new beam selection after recovering from a beam failure.