公开(公告)号：US20180338322A1

公开(公告)日：2018-11-22

申请号：US16051074

申请日：2018-07-31

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Taesang YOO ,  Tao LUO

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

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. The apparatus may be a base station. The apparatus may transmit a first grant to a UE. The apparatus may determine whether an acknowledgment to the first grant is received. When the acknowledgment to the first grant fails to be received by the apparatus, the apparatus may transmit, to the UE, a second grant including information regarding the first grant. In another aspect, an apparatus may be a UE. The apparatus may receive a first grant. The first grant may include a first Mayday bit. The apparatus may receive a second grant. The second grant may include a TTI count corresponding to a number of unacknowledged TTIs. The second grant may further include a second Mayday bit. The apparatus may determine an acknowledgment based on the TTI count and the first and second Mayday bits.

公开(公告)号：US20180302186A1

公开(公告)日：2018-10-18

申请号：US15934745

申请日：2018-03-23

Applicant: QUALCOMM Incorporated

Inventor： Akula REDDY ,  Jing SUN ,  Tao LUO ,  Sony AKKARAKARAN ,  Rahul MALIK ,  Tamer KADOUS

IPC: H04L1/00 ,  H04L5/00

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine a coreset of time and frequency resources within a control region of a coreset bandwidth. In one aspect, the coreset bandwidth may be based on a minimum bandwidth configuration associated with one or more UEs in a set of UEs. The apparatus may also transmit a PDCCH as a single-carrier waveform via the coreset of time and frequency resources. In one aspect, the PDCCH may be transmitted to each UE in the set of UEs using the coreset bandwidth.

公开(公告)号：US20180294911A1

公开(公告)日：2018-10-11

申请号：US15873441

申请日：2018-01-17

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Tao LUO ,  Tamer KADOUS ,  Juan MONTOJO ,  Xiao feng WANG ,  Sony AKKARAKARAN

IPC: H04J11/00 ,  H04W48/12

CPC classification number: H04J11/0086 ,  H04J11/0093 ,  H04J2011/0096 ,  H04L5/0053 ,  H04W48/12 ,  H04W72/1289

Abstract: User equipment associated with a legacy network may utilize a bottom-to-top search technique to identify relevant control channel samples. Generating a control channel that is configured for the bottom-to-top search technique may lead to poor performance in a single-carrier waveform, which may be disadvantageous as networks move toward New Radio. In some aspects, described herein, a base station generates a control channel that is configured to minimize gaps in the control channel, and a user equipment performs a top-to-bottom search technique to identify relevant control channel samples. By using the top-to-bottom search technique, degradation of single-carrier waveforms is reduced and efficiency is improved.

公开(公告)号：US20180279292A1

公开(公告)日：2018-09-27

申请号：US15726229

申请日：2017-10-05

Applicant: QUALCOMM Incorporated

Inventor： Tao LUO ,  Jing SUN ,  Sony AKKARAKARAN ,  Tamer KADOUS ,  Xiao feng WANG ,  Akula REDDY

IPC: H04W72/04 ,  H04L1/00 ,  H04L5/00

Abstract: When a base station is capable of using multiple different types of waveforms for a downlink communication to a UE, the UE may waste processing resources attempting to receive and/or process the downlink communication. For example, the UE may cycle through various possible types of waveforms in an attempt to process the downlink communication. Techniques described herein use waveform signaling for downlink communications to notify the UE of a type of waveform being used for a downlink communication, thereby conserving UE resources (e.g., processing resources, memory resources, RF resources, and/or the like) that would otherwise be wasted attempting to process the downlink communication using multiple types of waveforms.

公开(公告)号：US20180278379A1

公开(公告)日：2018-09-27

申请号：US15711652

申请日：2017-09-21

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Jing JIANG

IPC: H04L1/18 ,  H04W72/04 ,  H04L1/08

Abstract: Methods and Apparatus are provided for downlink retransmission of Code Block Groups (CBGs) when CBG level ACK and NACK feedback is unreliable. A User Equipment (UE) transmits to a Base Station (BS) feedback indicating an Acknowledgement (ACK) or a Negative Acknowledgement (NACK) corresponding to each of received set of CBGs transmitted by the BS to the UE. The BS receives and decodes the feedback and transmits back to the UE information regarding a result of the decoding. The UE, based on the received information, determines whether the BS correctly received and decoded the ACK/NACK feedback, and in some cases, ACKs and NACKs corresponding to which CBGs were incorrectly decoded by the BS. The UE processes retransmitted CBGs received from the BS based on this determination.

公开(公告)号：US20180145742A1

公开(公告)日：2018-05-24

申请号：US15647714

申请日：2017-07-12

Applicant: QUALCOMM Incorporated

Inventor： Junyi LI ,  Tao LUO ,  Jing SUN ,  Xiaoxia ZHANG

IPC: H04B7/08 ,  H04B7/0404

CPC classification number: H04B7/0874 ,  H04B7/0404 ,  H04B7/086 ,  H04B7/0871

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may receive an indication of a traffic type, wherein the indication is received via a first radiofrequency (RF) band. The apparatus may configure the apparatus to switch from a first antenna subarray operation that uses a first set of antenna subarrays to a second antenna subarray operation that uses a second set of antenna subarrays based at least in part on receiving the indication of the traffic type, wherein the second antenna subarray operation uses a second RF band for a communication. The apparatus may transmit the communication using the second antenna subarray operation.

公开(公告)号：US20180139012A1

公开(公告)日：2018-05-17

申请号：US15808568

申请日：2017-11-09

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush HOSSEINI ,  Wanshi CHEN ,  Jing SUN ,  Shimman PATEL ,  Ozcan OZTURK

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

Abstract: The present disclosure may enable a buffer to accommodate HARQ processes for transmissions with different TTIs when the UE is configured for legacy communications and ULL communications. The apparatus may allocate a first number of HARQ IDs to a first portion of a buffer, the first number of HARQ IDs being associated with a first transmission TTI HARQ process. In addition, the apparatus may allocate a second number of HARQ IDs to a second portion of the buffer. In an aspect, the second number of HARQ IDs may be associated with a second TTI HARQ process. In addition, the first portion and second portion may not change a total buffer size. The apparatus may also receive a HARQ response associated with a HARQ ID allocated to the first portion or the second portion.

公开(公告)号：US20180124754A1

公开(公告)日：2018-05-03

申请号：US15708687

申请日：2017-09-19

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Wanshi CHEN ,  Peter GAAL

IPC: H04W72/04 ,  H04B7/0452 ,  H04L5/00 ,  H04W72/08

CPC classification number: H04W72/042 ,  H04B7/0452 ,  H04L5/0026 ,  H04L5/0051 ,  H04L5/0055 ,  H04L27/3411 ,  H04W72/046 ,  H04W72/048 ,  H04W72/082

Abstract: Wireless networks support MU-MIMO transmission in which a base station transmits multiple spatial layers or spatial streams over a shared downlink resource to multiple UEs. However, UEs participating in the MU-MIMO transmission may need to manage interference associated with spatial streams intended for other users. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be configured to provide an MU-MIMO transmission to a plurality of user UEs over a same set of resource blocks. The apparatus may be configured to generate a DCI message for each UE. The DCI message may indicate a DL grant to each UE and include an MU-MIMO assistance information field that provides each UE with interference information to better decode the spatial layers.

公开(公告)号：US20180062708A1

公开(公告)日：2018-03-01

申请号：US15684823

申请日：2017-08-23

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Xiaoxia ZHANG ,  Taesang YOO ,  Siddhartha MALLIK ,  Juan MONTOJO

IPC: H04B7/024 ,  H04L12/715

CPC classification number: H04B7/024 ,  H04B7/0626 ,  H04B7/0632 ,  H04B17/318 ,  H04L5/0053 ,  H04L45/46 ,  H04W56/002 ,  H04W56/0065

Abstract: Techniques for overlapping cluster architecture for coordinated multipoint (CoMP) are provided. According to certain aspects, a method of wireless communication by a transmission point is provided. The method generally includes receiving, from a first base station, a first signal for a first user equipment (UE) to transmit over the air, receiving, from a second base station, a second signal for a second UE to transmit over the air, and combining the first and the second signals from the first and second base stations and transmitting the combined signal to the first and second UE.

公开(公告)号：US20170332389A1

公开(公告)日：2017-11-16

申请号：US15478173

申请日：2017-04-03

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Peter GAAL ,  Wanshi CHEN ,  Juan MONTOJO ,  Hao XU

IPC: H04W72/12 ,  H04W72/04 ,  H04B7/0452 ,  H04B7/0456 ,  H04W72/08

Abstract: The present disclosure enables a base station to group UEs based on similar PMIs for a combined transmission. The apparatus may receive a plurality of PMIs from a plurality of UEs. In one aspect, each PMI in the plurality of PMIs may be received from a different UE. The apparatus may also assign each UE of the plurality of UEs to a UE group. In another aspect, each UE group may be associated with a different PMI set in a plurality of PMI sets. The apparatus may further assign a transmission scheme to each UE group. In one configuration, the apparatus may determine one or more preferred spatial layers for each UE (e.g., based on the PMIs) assigned to a UE group, and schedule a combined transmission for the UE group based on the determined one or more spatial layers.