公开(公告)号：US20190075597A1

公开(公告)日：2019-03-07

申请号：US16108862

申请日：2018-08-22

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Tamer KADOUS

IPC: H04W74/08 ,  H04W72/04 ,  H04W36/04 ,  H04J11/00 ,  H04W8/22 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communication are described. A base station may configure a system frame number (SFN) and hyper-SFN associated with a long term sensing pattern. The base station may then transmit the SFN and hyper-SFN to indicate a sensing period corresponding to the long term sensing pattern. A UE may receive a SFN and hyper-SFN associated with a long term sensing pattern. The UE may determine, based on the SFN and hyper-SFN, a sensing period corresponding to the long term sensing pattern. The UE may then suspend a plurality of procedures during the sensing period.

公开(公告)号：US20190007946A1

公开(公告)日：2019-01-03

申请号：US15980568

申请日：2018-05-15

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Tamer KADOUS ,  Chih-Hao LIU ,  Mostafa KHOSHNEVISAN

IPC: H04W72/04 ,  H04W76/27 ,  H04W68/02 ,  H04W16/14 ,  H04W16/32

Abstract: Some techniques described herein assist a user equipment with acquiring and/or reacquiring, from a base station, a dynamic list of channels to be used for frequency hopping when communicating over an unlicensed radio frequency spectrum band, thereby increasing communication reliability and promoting coexistence in the unlicensed radio frequency spectrum band. Some techniques described herein also assist the user equipment in obtaining the list of channels with low latency (e.g., shortly after the list has changed) and with low power consumption. Numerous other aspects are provided.

公开(公告)号：US20180302796A1

公开(公告)日：2018-10-18

申请号：US15787141

申请日：2017-10-18

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Taesang YOO ,  Siddhartha MALLIK ,  Tamer KADOUS ,  Vikas JAIN ,  Ahmed SADEK

IPC: H04W16/14 ,  H04W16/10 ,  H04B7/06

CPC classification number: H04W16/14 ,  H04B7/0413 ,  H04B7/0697 ,  H04B7/204 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/0098 ,  H04L67/2833 ,  H04W16/10 ,  H04W74/0875

Abstract: Wireless communications systems and methods related to SDMA operations across multiple network operating entities are provided. A first wireless communication device transmits a communication indicating a reservation for one or more spatial layers in a transmission opportunity (TXOP) of a shared spectrum. The shared spectrum is shared by a first network operating entity and a second network operating entity. The first wireless communication device is associated with the first network operating entity. The first wireless communication device communicates, with a second wireless communication device, data over the one or more spatial layers during the TXOP. The second wireless communication device is associated with the first network operating entity.

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：US20180124789A1

公开(公告)日：2018-05-03

申请号：US15635000

申请日：2017-06-27

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Tamer KADOUS ,  Chih-Hao LIU ,  Chirag PATEL ,  Alberto RICO ALVARINO

IPC: H04W72/04 ,  H04W28/26 ,  H04L29/08 ,  H04W4/00

CPC classification number: H04W72/0453 ,  H04B1/713 ,  H04L1/12 ,  H04L1/189 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/14 ,  H04L67/12 ,  H04W4/70 ,  H04W16/14 ,  H04W28/26 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/048 ,  H04W74/0808 ,  H04W88/02 ,  H04W88/08

Abstract: A method and apparatus for wireless communication in the unlicensed spectrum between an eNB and UEs having different bandwidths, e.g., between a narrowband UE and a wideband eNB. A base station apparatus may perform a dual CCA procedure for a frame, wherein the dual CCA procedure comprises a first type of CCA procedure followed by a second type of CCA procedure when the first type of CCA procedure is unsuccessful. The apparatus may transmit during the frame when at least one CCA procedure of the dual CCA procedure is successful and may refrain from transmitting during the frame when both CCA procedures of the dual CCA procedure are unsuccessful. In performing the dual CCA procedure, the apparatus may perform CCA for a first period of time then perform eCCA for a second period of time following the CCA, when the CCA is unsuccessful.

公开(公告)号：US20180124770A1

公开(公告)日：2018-05-03

申请号：US15635051

申请日：2017-06-27

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Tamer KADOUS ,  Chih-Hao LIU ,  Chirag PATEL ,  Alberto RICO ALVARINO

IPC: H04W72/04 ,  H04W4/00

Abstract: A method and apparatus for wireless communication in the unlicensed spectrum between an eNB and UEs having different bandwidths, e.g., between a narrowband UE and a wideband eNB. A base station apparatus performs an LBT procedure at a beginning of frames and transmits a plurality of repetitions of a transmission. When the plurality of repetitions span multiple frames and the LBT procedure is not successful for a first frame, the base station drops or postpones at least one repetition in the first frame until a second frame when the LBT procedure is successful. A UE receives the plurality of repetitions and may combine a plurality of repetitions across multiple frames. The UE may determine whether the base station drops the at least one repetition in the first frame or postpones the at least one repetition in the first frame until a second frame.

公开(公告)号：US20240260045A1

公开(公告)日：2024-08-01

申请号：US18433297

申请日：2024-02-05

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Zhifei FAN ,  Kapil BHATTAD ,  Jing SUN ,  Tamer KADOUS ,  Srinivas YERRAMALLI

IPC: H04W72/23 ,  H04L1/1607 ,  H04L1/1812 ,  H04L1/1822 ,  H04L1/1829 ,  H04L5/00

CPC classification number: H04W72/23 ,  H04L1/1685 ,  H04L1/1812 ,  H04L1/1854 ,  H04L1/1861 ,  H04L1/1864 ,  H04L5/0055 ,  H04L1/1822

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) and a base station may communicate in an unlicensed spectrum (e.g., a shared radio frequency spectrum band). As such, the UE may determine a codebook size for transmitting hybrid access request (HARQ) acknowledgement (ACK) feedback with respect to the unlicensed spectrum. Accordingly, the UE may base the HARQ ACK codebook size on a number of HARQ processes with which the UE has been configured. Additionally or alternatively, the UE may base the HARQ ACK codebook size on a number and/or duration of downlink channel monitoring occasions indicated by the base station. In some cases, the UE may base the HARQ ACK codebook size on a combination of the techniques described herein.

公开(公告)号：US20230396531A1

公开(公告)日：2023-12-07

申请号：US18330237

申请日：2023-06-06

Applicant: QUALCOMM Incorporated

Inventor： Tao LUO ,  Juan MONTOJO ,  Tamer KADOUS ,  Junyi LI ,  Xiaoxia ZHANG ,  Jing SUN ,  Taesang YOO ,  Siddhartha MALLIK

IPC: H04L45/16 ,  H04W52/54 ,  H04B17/318 ,  H04B7/06 ,  H04W52/34 ,  H04B17/24 ,  H04W52/24 ,  H04W72/20 ,  H04W72/21 ,  H04W72/52 ,  H04W72/53 ,  H04W72/54 ,  H03M13/09 ,  H04L12/18 ,  H04L5/00 ,  H04W72/044 ,  H04B7/216 ,  H04W52/14 ,  H04W52/16 ,  H04W52/38 ,  H04W52/42 ,  H04W52/50 ,  H04W52/56 ,  H04L41/0668 ,  H04W76/22 ,  H04W24/08

CPC classification number: H04L45/16 ,  H04W52/54 ,  H04B17/318 ,  H04B7/0691 ,  H04B7/0626 ,  H04W52/346 ,  H04B17/24 ,  H04W52/243 ,  H04W72/20 ,  H04W72/21 ,  H04W72/52 ,  H04W72/53 ,  H04W72/54 ,  H03M13/09 ,  H04L12/185 ,  H04L5/0094 ,  H04W72/044 ,  H04B7/216 ,  H04W52/146 ,  H04W52/16 ,  H04W52/241 ,  H04W52/386 ,  H04W52/42 ,  H04W52/50 ,  H04W52/56 ,  H04L41/0668 ,  H04W76/22 ,  H04W24/08 ,  H04L2001/0093

Abstract: Various aspects of the disclosure relate to event triggers for independent links. For example, an event trigger may be based on measurements from multiple links. In some aspects, the independent links may involve a first device (e.g., a user equipment) communicating via different independent links with different devices (e.g., transmit receive points (TRPs) or sets of TRPs). For example, the first device may communicate with a second device (e.g., a TRP) via a first link and communicate with a third device (e.g., a TRP) via a second link. In some scenarios, an event trigger may be based on aggregated measurements from multiple links.