公开(公告)号：US20210105779A1

公开(公告)日：2021-04-08

申请号：US17010638

申请日：2020-09-02

Applicant: QUALCOMM Incorporated

Inventor： Wooseok NAM ,  Srinivas YERRAMALLI ,  Jing SUN ,  Xiaoxia ZHANG ,  Tao LUO ,  Zhifei FAN ,  Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL ,  Akula REDDY

IPC: H04W72/04 ,  H04W24/08 ,  H04W72/12

Abstract: Aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for signaling and processing dynamic control channel resources.

公开(公告)号：US20200374056A1

公开(公告)日：2020-11-26

申请号：US16875441

申请日：2020-05-15

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Tao LUO ,  Juan MONTOJO ,  Jing SUN ,  Srinivas YERRAMALLI ,  Vinay CHANDE ,  Zhifei FAN ,  Olufunmilola Omolade AWONIYI-OTERI ,  Sungwoo PARK ,  Arumugam CHENDAMARAI KANNAN

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

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a control channel that uses an orthogonal frequency division multiplexing (OFDM) waveform. The UE may transmit or receiving a data channel, associated with the control channel, that uses a single-carrier (SC) waveform. Numerous other aspects are provided.

公开(公告)号：US20200328777A1

公开(公告)日：2020-10-15

申请号：US16911180

申请日：2020-06-24

Applicant: QUALCOMM Incorporated

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

IPC: H04B1/7143 ,  H04B1/7136 ,  H04L5/00 ,  H04W16/14 ,  H04B1/713

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. In one example, the apparatus may be a base station. In certain configurations, the apparatus may transmit information indicating a narrowband frequency hopping pattern to at least one UE. In certain aspects, the narrowband frequency hopping pattern may correspond to a plurality of frames. In certain other aspects, the plurality of frames may include at least one non-anchor channel and being associated with a plurality of anchor channels. The apparatus may communicate with the at least one UE using the narrowband frequency hopping pattern, including concurrently transmitting a discovery reference signal (DRS) in each of the plurality of anchor channels at a start of each hopping frame. In certain aspects, communication on the plurality of anchor channels may occur during the same frames.

公开(公告)号：US20200154471A1

公开(公告)日：2020-05-14

申请号：US16674763

申请日：2019-11-05

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Xiaoxia ZHANG ,  Srinivas YERRAMALLI ,  Ozcan OZTURK

IPC: H04W74/00 ,  H04W16/14 ,  H04W74/08 ,  H04W72/12

Abstract: Uplink signaling in unlicensed or shared spectrum may be subject to listen before talk procedures resulting in failed signaling transmissions. A user equipment (UE) may perform uplink signaling using a configuration based on whether a base station has entered a channel occupancy time (COT) shared with the UE. A UE may determine that the UE has an uplink transmission for a base station. A UE may determine whether the base station has entered a channel occupancy time that is shared with the UE. A UE may determine configured random access or scheduling request transmission resources based on the channel occupancy time, wherein a density of transmission opportunities is greater outside of the shared channel occupancy time than within the shared channel occupancy time. A UE may transmit a random access message or the scheduling request on selected configured resources.

公开(公告)号：US20200084832A1

公开(公告)日：2020-03-12

申请号：US16683879

申请日：2019-11-14

Applicant: QUALCOMM Incorporated

Inventor： Hao XU ,  Srinivas YERRAMALLI ,  Juan MONTOJO ,  Yongbin WEI ,  Peter GAAL ,  Wanshi CHEN ,  Alberto RICO ALVARINO

IPC: H04W84/18 ,  H04W4/70 ,  H04L29/08 ,  H04W16/16 ,  H04W28/02 ,  H04W84/10 ,  H04W92/18 ,  H04B1/713 ,  H04L1/00

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for wireless communication, and more particularly, to design principles for extending Internet of Things (IoT) (e.g., narrowband IoT (NB-IoT), machine type communication(s) (MTC), etc.) into an unlicensed radio frequency (RF) band spectrum. In certain aspects, the method generally includes determining an interlace structure of tones, within an unlicensed radio frequency (RF) spectrum, available to a wireless node for communication, and communicating based on the interlace structure. In some aspects, the communicating involves hopping between tones within the interlace structure during different communication intervals.

公开(公告)号：US20190363773A1

公开(公告)日：2019-11-28

申请号：US16414568

申请日：2019-05-16

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Xiaoxia ZHANG ,  Seyed Ali Akbar FAKOORIAN ,  Jing SUN ,  Tamer KADOUS

IPC: H04B7/06 ,  H04W16/14 ,  H04B7/024

Abstract: Techniques and apparatus for reporting channel state information (CSI) for unlicensed coordinated multipoint (CoMP) operations are provided. One technique includes determining, based on one or more conditions, for each of a plurality of base stations available for a coordinated multipoint (CoMP) transmission, whether the base station has transmitted a channel state information reference signal (CSI-RS) in unlicensed spectrum. CSI feedback is reported based on the determination.

公开(公告)号：US20190173611A1

公开(公告)日：2019-06-06

申请号：US16130877

申请日：2018-09-13

Applicant: QUALCOMM Incorporated

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

IPC: H04L1/00 ,  H04L5/00 ,  H04W72/04 ,  H04W4/70 ,  H04W16/14

Abstract: Some techniques and apparatuses described herein may be used to avoid or reduce collisions between uplink data communications and uplink control communications for an enhanced machine-type communication user equipment (eMTC UE) operating in an unlicensed radio frequency spectrum band. Furthermore, some techniques and apparatuses may avoid such collision while still allowing efficient use of resources, such as by deferring the uplink data communication within a data segment, rate matching an uplink data communication around uplink control resources (e.g., cell-specific uplink control resources and/or UE-specific uplink control resources), puncturing the uplink data communication to avoid the uplink control resources, multiplexing uplink control information on an uplink data channel, and/or the like.

公开(公告)号：US20190173521A1

公开(公告)日：2019-06-06

申请号：US16128154

申请日：2018-09-11

Applicant: QUALCOMM Incorporated

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

IPC: H04B1/7143 ,  H04L5/00 ,  H04B1/7136 ,  H04W16/14

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. In one example, the apparatus may be a base station. In certain configurations, the apparatus may transmit information indicating a narrowband frequency hopping pattern to at least one UE. In certain aspects, the narrowband frequency hopping pattern may correspond to a plurality of frames. In certain other aspects, the plurality of frames may include at least one non-anchor channel and being associated with a plurality of anchor channels. The apparatus may communicate with the at least one UE using the narrowband frequency hopping pattern. In certain aspects, communication on the plurality of anchor channels may occur during the same frames.

公开(公告)号：US20190090149A1

公开(公告)日：2019-03-21

申请号：US16005558

申请日：2018-06-11

Applicant: QUALCOMM Incorporated

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

IPC: H04W24/10 ,  H04L5/00 ,  H04W4/70 ,  H04W72/04

Abstract: Various features related to eMTC-U deployment are described. In an aspect of the disclosure, an apparatus (e.g., a base station) maybe configured to select a subset of non-anchor channels from a set of available non-anchor channels, where the subset of non-anchor channels may correspond to a bandwidth within an unlicensed band. The apparatus maybe further configured to transmit information indicating the subset of non-anchor channels via an anchor channel. In some configurations, the subset of non-anchor channels maybe selected based on channel measurements performed by the base station or a UE. In one aspect, a UE may receive, from a base station via an anchor channel, information indicating a subset of non-anchor channels selected from a set of available non-anchor channels. The UE may transmit data on one or more non-anchor channel of the subset of non-anchor channels.

公开(公告)号：US20190069325A1

公开(公告)日：2019-02-28

申请号：US16116855

申请日：2018-08-29

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Ozcan OZTURK ,  Peter GAAL ,  Tamer KADOUS ,  Yongbin WEI

IPC: H04W74/08 ,  H04W72/04 ,  H04W76/27 ,  H04W52/36

Abstract: Aspects presented herein provide for dual connectivity with a standalone service provider in the unlicensed spectrum. A first base station may receive, from a UE, an indication of a capability for standalone operation in a first RAT that utilizes an unlicensed frequency spectrum and a dual connectivity capability involving the first RAT and a second RAT that utilizes a licensed frequency spectrum, wherein dual connectivity comprises the UE being connected to a master base station on a first frequency and a secondary base station on a second frequency at a same time. The first base station may signal a first set of procedures for dual connectivity when the level of support at the first base station is at higher layers of the first RAT and may signal a second set of procedures when the level of support at the first base station extends to lower layers of the first RAT.