公开(公告)号：US10470142B2

公开(公告)日：2019-11-05

申请号：US15589683

申请日：2017-05-08

Applicant: QUALCOMM Incorporated

Inventor： Hung Ly ,  Haitong Sun ,  Tingfang Ji ,  Joseph Binamira Soriaga

IPC: H04W56/00 ,  H04L5/00 ,  H04W4/02 ,  H04W8/08 ,  H04W24/10 ,  H04W52/04 ,  H04W72/04 ,  H04W36/00 ,  H04W88/02

Abstract: Various aspects relate to flexible mobility for a user equipment (UE) based on supported mobility modes of a network and UE conditions. A network may support one or more of a downlink based mobility mode, an uplink based mobility mode, or a hybrid mobility mode for a connectivity state of a UE. A UE may determine a serving cell based on at least one downlink signal. The UE may determine based on the at least one downlink signal, a set of supported mobility modes for the serving cell, including at least one of a downlink based mobility mode, an uplink based mobility mode, or a hybrid based mobility mode. The UE may follow a mobility procedure based on a selected mobility mode from the determined set of supported mobility modes. Other aspects relate to a base station transmitting synchronization signals to support flexible mobility.

公开(公告)号：US20190327062A1

公开(公告)日：2019-10-24

申请号：US16456876

申请日：2019-06-28

Applicant: Qualcomm Incorporated

Inventor： Jing Jiang ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Kambiz Azarian Yazdi ,  Krishna Kiran Mukkavilli ,  John Edward Smee

IPC: H04L5/00 ,  H04L1/00 ,  H04W72/04 ,  H04L1/18 ,  H04L1/16 ,  H04L5/14

Abstract: Methods, systems, and devices are described for fountain hybrid automatic repeat request (HARD) for reliable low latency communication. A wireless device may transmit a data block based on a low latency operational mode. The device may then transmit a number of redundancy versions of the data block prior to determining whether an acknowledgement (ACK) has been received. In some examples the ACK may be an augmented ACK, which may be based on the number of redundancy versions received prior to successfully decoding the data block, and which may include an additional resource request. In some examples, the device may select an updated modulation and coding scheme (MCS) based on the augmented ACK. In some examples, the device may increase a number of frequency resources (e.g., component carriers) used for transmission based on the augmented ACK.

公开(公告)号：US20190312708A1

公开(公告)日：2019-10-10

申请号：US16379232

申请日：2019-04-09

Applicant: QUALCOMM Incorporated

Inventor： Tianyang Bai ,  Makesh Pravin John Wilson ,  Kiran Venugopal ,  Muhammad Nazmul Islam ,  Gabi Sarkis ,  Joseph Binamira Soriaga ,  Tao Luo

IPC: H04L5/00 ,  H04W68/02 ,  H04W72/04

Abstract: Wireless devices may employ techniques for indicating alternative modulation coding schemes (MCSs) (e.g., MCS values or MCS indices not associated with a default list or default MCS table). That is, communications (e.g., such as physical downlink control channel (PDCCH) transmissions carrying downlink control information (DCI), physical downlink shared channel (PDSCH) transmissions carrying uplink grants, etc.) may include information (e.g., in MCS fields and reserved fields) that indicate alternative MCSs for subsequent communications. For example, random access radio network temporary identifier (RA-RNTI) scrambled DCI, random access response (RAR) messages, etc., may indicate an alternative MCS for subsequent messages in a random access procedure (e.g., for a RAR, an RRC connection request, etc.). The alternative MCS may be conveyed by indicating information such as MCS scaling factors, alternative MCS table IDs, MCS indices associated with the alternative MCS table, or some combination thereof.

公开(公告)号：US10440726B2

公开(公告)日：2019-10-08

申请号：US15784036

申请日：2017-10-13

Applicant: QUALCOMM Incorporated

Inventor： Jing Jiang ,  Peter Pui Lok Ang ,  Tingfang Ji ,  John Edward Smee ,  Joseph Binamira Soriaga ,  Krishna Kiran Mukkavilli

IPC: H04W4/00 ,  H04W72/12 ,  H04L1/16 ,  H04L5/14 ,  H04L1/00 ,  H04L5/00

Abstract: In an aspect of the disclosure, a method, a computer program product, and an apparatus are provided. The method may be performed by a scheduling entity. The scheduling entity transmits control information in a control portion of the subframe, the control information corresponding to data information within the subframe, transmits the data information in a data portion of the subframe, receives a pilot signal from the set of subordinate entities in a pilot portion of the subframe, and receives an ACK/NACK signal from the set of subordinate entities in an ACK portion of the subframe. The ACK portion is subsequent to the pilot portion of the subframe. The ACK/NACK signal includes acknowledgment information corresponding to the data information. The control portion, the data portion, the pilot portion, and the ACK portion are contained in the same subframe.

公开(公告)号：US10432378B2

公开(公告)日：2019-10-01

申请号：US15717713

申请日：2017-09-27

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Krishna Kiran Mukkavilli ,  Raghu Challa ,  Yang Yang ,  Alexei Yurievitch Gorokhov ,  Tingfang Ji ,  Joseph Binamira Soriaga ,  Heechoon Lee

IPC: H04L5/00 ,  H04W48/08 ,  H04W52/02 ,  H04W76/28 ,  H04W88/02

Abstract: Techniques are described for wireless communication. A method for wireless communication at a user equipment (UE) includes identifying a transmission timing of a control reference signal transmitted over a radio frequency spectrum band during an OFF duration of the UE with respect to the radio frequency spectrum band, in which the identified transmission timing is relative to a transition from the OFF duration to an ON duration of the UE with respect to the radio frequency spectrum band; receiving the control reference signal at the identified transmission timing; and performing a warm-up procedure, before the ON duration, based at least in part on the identified transmission timing of the control reference signal. A method for wireless communication at a wireless network includes indicating, to the UE, the transmission timing of the control reference signal; and transmitting the control reference signal at the indicated transmission timing. The OFF duration and the ON duration are coordinated with a wireless network.

公开(公告)号：US10419199B2

公开(公告)日：2019-09-17

申请号：US15405997

申请日：2017-01-13

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Joseph Binamira Soriaga ,  Tingfang Ji

IPC: H04W56/00 ,  H04L7/00 ,  H04L5/00 ,  H04W84/04

Abstract: Aspects of the present disclosure describe synchronizing frequency and/or timing in a wireless communication system. A synchronization channel frequency can be determined as one of a plurality of possible synchronization channel frequencies within a frequency band. A tone of one or more synchronization signals that corresponds to the synchronization channel frequency can be punctured, and the one or more synchronization signals can be transmitted as centered around the synchronization channel frequency.

公开(公告)号：US10404332B2

公开(公告)日：2019-09-03

申请号：US15182433

申请日：2016-06-14

Applicant: QUALCOMM Incorporated

Inventor： Tingfang Ji ,  John Edward Smee ,  Joseph Binamira Soriaga ,  Wei Zeng ,  Jing Jiang

IPC: H04W4/00 ,  H04B7/0417 ,  H04L5/00 ,  H04W72/04 ,  H04L25/02 ,  H04W28/02

Abstract: Techniques for utilizing resources in a downlink (DL) common burst are described herein. In one aspect, a channel state information reference signal (CSI-RS) may be included in the DL common burst for channel estimation. In another aspect, a demodulation reference signal (DM-RS) and DL data may be included in the DL common burst for low latency data transmission. In yet another aspect, a measurement reference signal (M-RS) may be included in the DL common burst to assist handover decisions. The techniques described herein may be used for various wireless communications systems.

公开(公告)号：US10397944B2

公开(公告)日：2019-08-27

申请号：US15382416

申请日：2016-12-16

Applicant: QUALCOMM Incorporated

Inventor： Pavan Kumar Vitthaladevuni ,  June Namgoong ,  Joseph Binamira Soriaga

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

Abstract: Aspects of the present disclosure provide methods and apparatuses that can utilize different subframe structures to estimate a channel during wireless communication in different scenarios. When a scheduling entity determines that a scheduled entity is near or at a cell edge, the scheduled entity may use a special subframe to estimate the channel utilizing more resources of the subframe, for example data signals. The special subframe can facilitate channel estimation by using a less complex (or lower rank) modulation and coding scheme (MCS) for the data symbols than a normal subframe for other scheduled entities not located near the cell edge.

公开(公告)号：US20190260418A1

公开(公告)日：2019-08-22

申请号：US16280879

申请日：2019-02-20

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Peter Gaal ,  Wanshi Chen ,  Jing Lei ,  Jay Kumar Sundararajan ,  Renqiu Wang ,  Joseph Binamira Soriaga ,  Naga Bhushan ,  Tingfang Ji ,  John Edward Smee

IPC: H04B1/7093 ,  H04J13/00 ,  G06F17/14 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network controller may determine a first set of spreading sequences and a second set of spreading sequences for non-orthogonal multiple access (NOMA) communication, wherein the first set of spreading sequences is different than the second set of spreading sequences; and configure a first cell to use the first set of spreading sequences and a second cell to use the second set of spreading sequences; or configure the first set of spreading sequences to be used for first user equipment associated with a cell center of the first cell and the second set of spreading sequences to be used for second user equipment associated with a cell edge of the first cell or the second cell. Numerous other aspects are provided.

公开(公告)号：US20190260417A1

公开(公告)日：2019-08-22

申请号：US16279953

申请日：2019-02-19

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Jing Lei ,  Renqiu Wang ,  Joseph Binamira Soriaga ,  Naga Bhushan ,  Tingfang Ji

IPC: H04B1/7093 ,  H04J13/00 ,  H04B7/08 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described that support pairwise cross correlation sequences for non-orthogonal multiple access wireless communications. A user equipment (UE) may receive, from a base station, an indication of a spreading factor and a number of transmitters in a group of non-orthogonal multiple access (NOMA) transmitters configured for concurrent transmissions. The UE may determine, based on the spreading factor and the number of transmitters, a first spreading sequence of a set of spreading sequences from a first codebook, the first spreading sequence having a defined value for pairwise cross correlation with each spreading sequence of the plurality of spreading sequences. The first UE may identify data to be transmitted in an uplink transmission, apply the first spreading sequence to the data to be transmitted in the uplink transmission, and transmit the uplink transmission to the base station.