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：US20190199571A1

公开(公告)日：2019-06-27

申请号：US16218737

申请日：2018-12-13

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Xiaoxia Zhang ,  Xiao Feng Wang

IPC: H04L27/26

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be in communication with multiple base stations having a non-ideal backhaul link, where uplink and downlink transmission on a carrier may be sent on respective communication links. The transmissions may be synchronous or asynchronous, and the UE may identify a set of search candidates in overlapping TTIs associated with downlink transmissions from respective base stations. In some cases, a number or a timing of the set of search candidates may be based on the overlapping TTIs. The UE may also use different uplink transmit powers for transmissions on the different communication links. In some cases, a minimum reserved power may be used for each link where a remaining transmit power, for example, up to a maximum total transmit power, may be split between the links or applied to the uplink transmission that occurs temporally first.

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.

公开(公告)号：US20190141640A1

公开(公告)日：2019-05-09

申请号：US16178527

申请日：2018-11-01

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Xiao Feng Wang ,  Bilal Sadiq ,  Sundar Subramanian ,  Muhammad Nazmul Islam

IPC: H04W52/14 ,  H04W52/42

Abstract: Techniques are provided for power control in directional beam environments. A user equipment (UE) may determine one or more power parameters on a beam-by-beam basis. Each directional uplink transmission beam in a communication link between the UE and the base station may be independently controlled using these beam-specific power parameters. Examples of these beam-specific power parameters may include a maximum output power for a given directional uplink transmission beam and a difference between the maximum output power for the given directional uplink transmission beam and an estimated transmit power for the given directional uplink transmission beam. The UE may report one or more of these beam-specific power parameters to a base station using a beam-specific report.

公开(公告)号：US20190090223A1

公开(公告)日：2019-03-21

申请号：US16152104

申请日：2018-10-04

Applicant: QUALCOMM Incorporated

Inventor： Wooseok Nam ,  Tao Luo ,  Sony Akkarakaran ,  Makesh Pravin John Wilson ,  Sumeeth Nagaraja ,  Xiao Feng Wang ,  Shengbo Chen

IPC: H04W72/04 ,  H04W16/28 ,  H04W76/10 ,  H04W76/27 ,  H04W88/02 ,  H04L1/00

CPC classification number: H04W72/042 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0695 ,  H04B7/088 ,  H04L1/0038 ,  H04L1/0047 ,  H04L5/0053 ,  H04L5/0092 ,  H04L5/0094 ,  H04L5/0098 ,  H04W16/28 ,  H04W72/046 ,  H04W72/08 ,  H04W72/1273 ,  H04W72/1278 ,  H04W72/1294 ,  H04W76/10 ,  H04W76/27 ,  H04W88/02

Abstract: Methods, systems, and devices for wireless communications provide for transmission of a beam switch command to a user equipment (UE) via control channel signaling. The UE may establish a connection with a base station using a first transmission beam, receive configuration information configuring the UE to select between a first decoding hypothesis corresponding to downlink control information (DCI) including a bit field including a beam switch command and a second decoding hypothesis corresponding to the DCI not including the bit field, receive a downlink control channel transmission via the first transmission beam, decode the downlink control channel transmission in accordance with the configuration information to obtain decoded DCI, and communicate with the base station based at least in part on the decoded DCI.

公开(公告)号：US20190053166A1

公开(公告)日：2019-02-14

申请号：US16033023

申请日：2018-07-11

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth Nagaraja ,  Andrei Dragos Radulescu ,  Tao Luo ,  Sony Akkarakaran ,  Makesh Pravin John Wilson ,  Xiao Feng Wang ,  Shengbo Chen

IPC: H04W52/14 ,  H04W72/04 ,  H04W76/27 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communication are described. A base station may transmit procedure-specific uplink power parameters to one or more user equipments (UEs) in a cell. A UE may determine a procedure including one or more uplink transmissions. The UE may determine a transmit power level corresponding to the procedure based at least in part on the procedure-specific uplink power parameters. The UE may transmit the one or more uplink transmissions using the determined transmit power level.

公开(公告)号：US20190029036A1

公开(公告)日：2019-01-24

申请号：US16040208

申请日：2018-07-19

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Sony Akkarakaran ,  Sumeeth Nagaraja ,  Wooseok Nam ,  Shengbo Chen ,  Xiao Feng Wang ,  Juan Montojo

IPC: H04W74/00 ,  H04W74/08 ,  H04B7/06 ,  H04B7/0408

Abstract: Methods, systems, and devices for wireless communication are described. Uplink random access channel (RACH) transmissions may be sent on multiple beams by a user equipment (UE). For example, a UE may transmit a random access preamble to a base station in a first RACH transmission, and the base station may respond with a random access response in a second RACH transmission. The second RACH transmission may include an indication for the UE to use multiple transmit beams for a third RACH transmission. Using the indication received from the base station, the UE may proceed to use the indicated two or more beams when sending the third RACH transmission to the base station. Upon receiving the third RACH transmission from the UE, the base station may respond with a fourth RACH transmission, which may further include an indication to the UE to transmit an acknowledgment using one or more beams.

公开(公告)号：US20190007963A1

公开(公告)日：2019-01-03

申请号：US16020915

申请日：2018-06-27

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Peter Gaal ,  Xiao Feng Wang ,  Juan Montojo ,  Yi Huang ,  Renqiu Wang ,  Seyong Park

IPC: H04W72/14 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described that support discontinuous scheduling. A base station may transmit, to a user equipment (UE), a grant of resources of a communication channel over a multiple of aggregated TTIs. The UE may monitor a control channel for the grant of resources transmitted by base station. The base station and the UE may identify a location of an excluded TTI within the plurality of aggregated TTIs. The excluded TTI may correspond to a TTI for communicating synchronization signals, random access channel (RACH) signals, or the like. The base station may communicate with the UE via the resources of the communication channel over at least a subset of the aggregated TTIs based on the grant and the location of the excluded TTI.

公开(公告)号：US20180376498A1

公开(公告)日：2018-12-27

申请号：US16000624

申请日：2018-06-05

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Hao Xu ,  Alberto Rico Alvarino ,  Xiao Feng Wang ,  Peter Gaal ,  Nerrie Zohn

IPC: H04W72/12 ,  H04L5/00 ,  H04L1/18 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive data in a downlink transmission from a base station. After the UE successfully processes the data, the UE may select a transmit time interval (TTI) in which to send an acknowledgement (ACK) of the data to the base station. In some examples, the UE may select the TTI based on a delay that is a function of the processing abilities of the UE. Additionally or alternatively, the UE may select the TTI based on a delay that is a function of the transmission parameters of the downlink transmission. After selecting the TTI, the UE may send the ACK to the base station in the selected TTI.

公开(公告)号：US20180316472A1

公开(公告)日：2018-11-01

申请号：US15948539

申请日：2018-04-09

Applicant: QualComm Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Xiao Feng Wang ,  Sony Akkarakaran ,  Wooseok Nam ,  Sumeeth Nagaraja ,  Kaushik Chakraborty ,  Shengbo Chen

IPC: H04L5/00 ,  H04W76/15

CPC classification number: H04L5/0048 ,  H04J2211/005 ,  H04L5/0035 ,  H04L5/0053 ,  H04L27/2613 ,  H04W72/0446 ,  H04W72/0453 ,  H04W76/15

Abstract: Wireless communications systems and methods related to reusing long-term evolution (LTE) resources in a nested network system are provided. A first wireless communication device receives, from a second wireless communication device, a reference signal configuration of a first network of a long-term evolution (LTE) radio access technology (RAT). The first wireless communication device and the second wireless communication device are associated with a second network of another RAT. The first wireless communication device receives, from the second wireless communication device, a communication signal in the second network based on the reference signal configuration of the first network. The reference signal configuration indicates at least one of a frequency tone of a reference signal of the first network, a time period of the reference signal of the first network, or a number of antenna ports associated with the reference signal of the first network.