公开(公告)号：US20180324751A1

公开(公告)日：2018-11-08

申请号：US15956440

申请日：2018-04-18

Applicant: QUALCOMM Incorporated

Inventor： Karl Georg Hampel ,  Muhammad Nazmul Islam ,  Keiichi Kubota ,  Aleksandar Damnjanovic

IPC: H04W68/02 ,  H04W76/11 ,  H04W76/18 ,  H04W76/27

CPC classification number: H04W68/02 ,  H04W4/70 ,  H04W28/06 ,  H04W68/025 ,  H04W72/0406 ,  H04W76/11 ,  H04W76/18 ,  H04W76/27

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may receive a compressed paging message broadcast from a base station, and transmit a connection request in response. The wireless device may include a paging response indication (e.g., indicating the connection request results from a received, false or genuine, paging request) and a wireless device identification (e.g., a UE ID) into the modified connection request. The base station may identify the connection request is in response to a paging broadcast by receiving the paging response indication, and determine if the connection request occurred in response to a false paging alert by comparing the received UE ID to the uncompressed paging request message list. If a match is found, the base station may transmit a connection establishment request. If a match is not found the base station may transmit a connection rejection message to the wireless device.

公开(公告)号：US20180317257A1

公开(公告)日：2018-11-01

申请号：US15950411

申请日：2018-04-11

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Junyi Li ,  Sundar Subramanian

IPC: H04W74/08 ,  H04L5/14 ,  H04W16/28

Abstract: Methods, systems, and devices for wireless communication are described. A wireless node may transmit directional signals in a sweeping transmission pattern while receiving communications from a second wireless node. Another wireless node may then, during a listen-before-talk (LBT) procedure, receive one of the directional signals, and terminate a correspondence communication session to avoid potential interference. Additionally or alternatively, a wireless node may listen in directions in a sweeping receive pattern while transmitting to a second wireless node. While listening, the wireless node may detect a transmission from a third wireless node in a particular direction. The wireless node may then accordingly refrain from transmitting in that direction to avoid potential interference.

公开(公告)号：US10097254B2

公开(公告)日：2018-10-09

申请号：US15369069

申请日：2016-12-05

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Krishna Kiran Mukkavilli ,  Juergen Cezanne ,  Tao Luo ,  Sundar Subramanian ,  Junyi Li

IPC: H04B7/06 ,  H04W72/04 ,  H04W72/08 ,  H04L5/00 ,  H04L25/02

Abstract: Methods, systems, and devices for wireless communication are described. A base station may transmit a phase noise correction reference signal (PC-RS) and a channel state information reference signal (CSI-RS) during a symbol period of a subframe. A user equipment (UE) may identify a first channel information using the PC-RS and the CSI-RS. The UE may transmit a channel information message to the base station that includes the first channel information. The first channel information may include a phase noise corrected channel measurement. The UE may the CSI-RS during the symbol period. Channel and phase noise estimates may be generated using a joint estimation based on the CSI-RS. The CSI-RS may be repeated periodically. In some cases, the UE may additionally or alternatively receive pilot tones that may include PC-RSs. The joint estimation may be further based on the pilot tones.

公开(公告)号：US20180139712A1

公开(公告)日：2018-05-17

申请号：US15713167

申请日：2017-09-22

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Bilal Sadiq ,  Sundar Subramanian ,  Junyi Li ,  Muhammad Nazmul Islam ,  Atul Maharshi ,  Juergen Cezanne ,  Ashwin Sampath

IPC: H04W56/00 ,  H04L27/26

CPC classification number: H04W56/0005 ,  H04L27/2613 ,  H04L27/2657 ,  H04L27/2666 ,  H04L27/2675 ,  H04L27/2692 ,  H04W56/00 ,  H04W56/0035

Abstract: Methods, systems, and devices for wireless communication are described that provide for the indication of communication information using a correlation between synchronization signals transmitted by a base station for cell acquisition. The communication information may include a physical channel timing parameter such as synchronization periodicity, a physical broadcast channel (PBCH) periodicity, a beam sweep periodicity, or a cyclic prefix (CP) type. Communication information may also indicate the presence of a physical broadcast channel (PBCH) transmission or a mobility reference signal (MRS) transmission. The correlation may be a phase shift between multiple signals or may be based on precoding matrices used during transmission processing of the synchronization signals across subcarriers and antenna ports.

公开(公告)号：US20180091274A1

公开(公告)日：2018-03-29

申请号：US15618969

申请日：2017-06-09

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Bilal Sadiq ,  Ashwin Sampath ,  Sundar Subramanian ,  Junyi Li ,  Vasanthan Raghavan

IPC: H04L5/00 ,  H04W16/28 ,  H04B7/0456 ,  H04B7/06

CPC classification number: H04B7/0617 ,  H04B7/0456 ,  H04B7/0621 ,  H04B7/0695 ,  H04L5/0048 ,  H04W16/28 ,  H04W24/10 ,  H04W72/046 ,  H04W88/02

Abstract: Methods, systems, and devices for wireless communication are described. A network device, such as a base station, may transmit a request message to a user equipment (UE). The request message may include a request for the UE to transmit a set of sounding reference signals (SRSs). The set of SRSs may include two (or more) beamformed signals. The network device may receive the set of SRSs according to the request message. The network device may identify, based on a co-phasing parameter associated with the two (or more) beamformed signals, an antenna port precoder configuration to use for communicating with the UE.

公开(公告)号：US20170325256A1

公开(公告)日：2017-11-09

申请号：US15369602

申请日：2016-12-05

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Tao Luo ,  Sundar Subramanian ,  Junyi Li ,  Juergen Cezanne

IPC: H04W72/12 ,  H04W72/04 ,  H04L1/08

CPC classification number: H04W72/1263 ,  H04L1/08 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0048 ,  H04L27/2602 ,  H04W72/042 ,  H04W72/044

Abstract: Methods, systems, and devices for wireless communication are described. The methods, systems, and devices provide for identifying tone spacing for transmission or reception of signals. The identified tone spacing may vary depending on the transmission or reception spectrum band or signal type. Using the identified tone spacing, a number of repetitions or a number of symbols for transmission or receiver algorithm of a signal may be determined.

公开(公告)号：US20170311315A1

公开(公告)日：2017-10-26

申请号：US15454535

申请日：2017-03-09

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Tao Luo ,  Sundar Subramanian ,  Navid Abedini ,  Junyi Li ,  Juergen Cezanne ,  Hung Dinh Ly ,  Joseph Binamira Soriaga ,  Tingfang Ji

IPC: H04W72/04 ,  H04W74/08 ,  H04W56/00

CPC classification number: H04W72/0446 ,  H04L5/0007 ,  H04L5/003 ,  H04L5/0091 ,  H04L27/2602 ,  H04L27/2666 ,  H04W56/0015 ,  H04W74/0833

Abstract: Methods, systems, and devices for wireless communication are described. Methods, systems, and devices provide for different tone spacing schemes for different channels. Methods, systems, and devices also provide for different tone spacing schemes for different stages of communication between a UE and a base station. The base station may indicate, to the UE, the tone spacing scheme in a control channel, a synchronization signal, or a reference signal and the tone spacing scheme may be selected by the base station from available tone spacing schemes for communication. Tone spacing schemes may also be referred to as numerologies.

公开(公告)号：US20170290056A1

公开(公告)日：2017-10-05

申请号：US15357951

申请日：2016-11-21

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Juergen Cezanne ,  Sundar Subramanian ,  Bilal Sadiq ,  Junyi Li ,  Ashwin Sampath

IPC: H04W74/08 ,  H04L12/26 ,  H04W72/04 ,  H04L27/26

CPC classification number: H04W74/085 ,  H04J13/0003 ,  H04J13/0048 ,  H04L27/2607 ,  H04L27/2613 ,  H04W72/0446 ,  H04W72/0453

Abstract: A user equipment (UE) may transmit a random access message to a wireless node using multiple symbols. The random access message may include repetitions of a random access sequence weighted by a spreading code. For example, a random access sequence may be weighted using different elements of the spreading code, where a first repetition may be weighted with a first element and a second repetition may be weighted using a second element. The weighted random access signals may be spread over multiple symbols and transmitted to the wireless node as the random access message. In some cases, a spreading code may include values of one and negative one, may be based on rows of a Hadamard matrix, or may correspond to a number of symbols used to transmit the random access message.

公开(公告)号：US20170245260A1

公开(公告)日：2017-08-24

申请号：US15242194

申请日：2016-08-19

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Sundar Subramanian ,  Ashwin Sampath ,  Juergen Cezanne ,  Bilal Sadiq ,  Junyi Li ,  Tao Luo

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0413 ,  H04B7/0619 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0057 ,  H04W72/042

Abstract: Various aspects of the disclosure relate to communicating uplink control information. As one example, a user equipment may send uplink control information to a base station. In some aspects, the number of symbols used to communicate the uplink control information may be based on a link gain associated with the UE and/or based on a payload size of the uplink control information. As another example, the user equipment may send channel information for a number of beams to the base station. In some aspects, the number of beams may be based on the type of channel that is used to send the uplink control information.

公开(公告)号：US20170245259A1

公开(公告)日：2017-08-24

申请号：US15242153

申请日：2016-08-19

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Sundar Subramanian ,  Ashwin Sampath ,  Juergen Cezanne ,  Bilal Sadiq ,  Junyi Li ,  Tao Luo

IPC: H04W72/04 ,  H04L5/00

Abstract: Various aspects of the disclosure relate to communicating uplink control information. As one example, a user equipment may send uplink control information to a base station. In some aspects, the number of symbols used to communicate the uplink control information may be based on a link gain associated with the UE and/or based on a payload size of the uplink control information. As another example, the user equipment may send channel information for a number of beams to the base station. In some aspects, the number of beams may be based on the type of channel that is used to send the uplink control information.