公开(公告)号：US20230046231A1

公开(公告)日：2023-02-16

申请号：US17759148

申请日：2021-01-21

Applicant: QUALCOMM Incorporated

Inventor： Konstantinos DIMOU ,  Yan ZHOU ,  Tao LUO ,  Xiaoxia ZHANG ,  Seyedkianoush HOSSEINI ,  Mostafa KHOSHNEVISAN ,  Sony AKKARAKARAN ,  Jelena DAMNJANOVIC ,  Arumugam CHENDAMARAI KANNAN ,  Kazuki TAKEDA

IPC: H04L1/18

Abstract: Wireless communications systems and methods related to acknowledgement/negative-acknowledgement (ACK/NACK) transmissions with different reliability levels are provided. A user equipment (UE) receives, from a base station (BS), a negative acknowledgement (NACK) transmission configuration. The UE receives, from the BS, a data transmission. The UE transmits, to the BS, a physical uplink control channel (PUCCH) signal including a NACK for the data transmission based on the received NACK transmission configuration. Other aspects and features are also described.

公开(公告)号：US20230043834A1

公开(公告)日：2023-02-09

申请号：US17813826

申请日：2022-07-20

Applicant: QUALCOMM Incorporated

Inventor： Kazuki TAKEDA ,  Changhwan PARK ,  Punyaslok PURKAYASTHA

IPC: H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of a trigger state associated with a configuration for receiving one or more secondary cell (SCell) activation reference signals. The UE may receive the one or more SCell activation reference signals based at least in part on the configuration. Numerous other aspects are described.

公开(公告)号：US20230043826A1

公开(公告)日：2023-02-09

申请号：US17816854

申请日：2022-08-02

Applicant: QUALCOMM Incorporated

Inventor： Huilin XU ,  Kazuki TAKEDA

IPC: H04W48/20 ,  H04L5/00

Abstract: Some aspects of the present disclosure disclose methods and systems related to the use of a periodic reference signal to activate a secondary cell. For example, a user equipment may receive, from a base station on a primary cell, an activation command configured to activate a secondary cell. The user equipment may also receive, from the base station and on the primary cell, a signal indicating an availability of a periodic reference signal on the secondary cell, the periodic RS being for use in activating the secondary cell. The user equipment may then, in response to receiving the signal, perform a tracking function to activate the secondary cell.

公开(公告)号：US20220408467A1

公开(公告)日：2022-12-22

申请号：US17354928

申请日：2021-06-22

Applicant: QUALCOMM Incorporated

Inventor： Alberto RICO ALVARINO ,  Kazuki TAKEDA

IPC: H04W72/12 ,  H04W72/04

Abstract: A shared control region is provided for enhanced dynamic spectrum sharing between a first radio access technology (e.g., LTE) and a second radio access technology (e.g., NR). The shared control region is resource element mapped according to a resource element mapping for the first radio access technology (RAT) and includes pilot signals for the first RAT. The shared control region also includes control information for a user equipment in the second RAT.

公开(公告)号：US20220385394A1

公开(公告)日：2022-12-01

申请号：US17679389

申请日：2022-02-24

Applicant: QUALCOMM INCORPORATED

Inventor： Alberto RICO ALVARINO ,  Kazuki TAKEDA ,  Changhwan PARK ,  Peter GAAL ,  Wanshi CHEN ,  Juan MONTOJO

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

Abstract: Mechanisms for rate matching a downlink communication channel in a multi-radio access technology (RAT) communication scenario are described. In one aspect, a method for wireless communication performed by a base station (BS) includes rate matching, based on a rate matching pattern indicating a plurality of reserved resource elements, a downlink (DL) communication channel. The method further includes transmitting, to a user equipment (UE) on one or more antenna ports, a DL communication in the rate matched DL communication channel. The method further includes transmitting, on the one or more antenna ports, one or more signals in the plurality of reserved resource elements. The one or more signals transmitted in the plurality of reserved resource elements may allow UEs associated with other RATs to estimate the rate matched DL communication channel.

公开(公告)号：US20220353845A1

公开(公告)日：2022-11-03

申请号：US17813205

申请日：2022-07-18

Applicant: QUALCOMM Incorporated

Inventor： Le LIU ,  Alberto RICO ALVARINO ,  Kazuki TAKEDA ,  Xiaoxia ZHANG

IPC: H04W72/00 ,  H04W72/12 ,  H04W72/04 ,  H04L1/18 ,  H04L5/00 ,  H04W76/11

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a broadcast or a multicast (broadcast/multicast) scheduling configuration for a physical downlink control channel (PDCCH), the broadcast/multicast scheduling configuration identifying, for receiving broadcast/multicast communications, at least one of: a plurality of radio network temporary identifiers that are respectively associated with a plurality of beams, or one or more bandwidth parts. The UE may receive a broadcast/multicast communication associated with a broadcast/multicast control channel or a broadcast/multicast traffic channel via a physical downlink shared channel in accordance with the broadcast/multicast scheduling configuration for the PDCCH. Numerous other aspects are provided.

公开(公告)号：US20220330313A1

公开(公告)日：2022-10-13

申请号：US17809955

申请日：2022-06-30

Applicant: QUALCOMM Incorporated

Inventor： Kazuki TAKEDA ,  Alberto RICO ALVARINO ,  Le LIU

IPC: H04W72/12 ,  H04W72/04 ,  H04L12/18 ,  H04W8/24 ,  H04L69/324

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a transmission type for a physical downlink shared channel, wherein the transmission type is a multicast transmission type or a unicast transmission type. The UE may determine, based at least in part on the transmission type for the physical downlink shared channel, a transmission configuration indicator state, of a plurality of possible transmission configuration indicator states, that corresponds to a quasi-co-location assumption, of a plurality of possible quasi-co-location assumptions, for the physical downlink shared channel. The UE may decode the physical downlink shared channel based at least in part on the transmission configuration indicator state. Numerous other aspects are provided.

公开(公告)号：US20220322372A1

公开(公告)日：2022-10-06

申请号：US17452119

申请日：2021-10-25

Applicant: QUALCOMM Incorporated

Inventor： Kazuki TAKEDA ,  Alberto RICO ALVARINO ,  Peter GAAL ,  Valentin Alexandru GHEORGHIU

IPC: H04W72/12 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, information that identifies an association between a first cell of a first radio access technology (RAT) and a second cell of a second RAT. The UE may perform a measurement for the first cell. The UE may determine that the measurement for the first cell satisfies a threshold value. The UE may perform an interference canceling operation for a reference signal of the second cell, or a de-weighting operation for one or more resource elements in which the reference signal interferes, based at least in part on the determination that the measurement for the first cell satisfies the threshold value and the association between the first cell and the second cell. Numerous other aspects are described.

公开(公告)号：US20220322331A1

公开(公告)日：2022-10-06

申请号：US17220146

申请日：2021-04-01

Applicant: QUALCOMM Incorporated

Inventor： Kazuki TAKEDA ,  Peter GAAL ,  Masato KITAZOE

IPC: H04W72/04

Abstract: The base station may receive a first indication that the UE supports NR-CA with multiple PUCCH groups or NR-DC with multiple cell groups and a second indication that the UE does not support simultaneous Rx/Tx in a first frequency band and a second frequency band, and schedule communication with the UE to avoid scheduling the simultaneous Rx/Tx based on the first and second indications. The base station may avoid scheduling simultaneous Rx/Tx in a first cell group or a first PUCCH group including the first frequency band and a second cell group or a second PUCCH group including the second frequency band. The UE may skip reporting to the base station that the UE supports the NR-DC or the NR-CA with the first frequency band and the second frequency band.

公开(公告)号：US20220225183A1

公开(公告)日：2022-07-14

申请号：US17546941

申请日：2021-12-09

Applicant: QUALCOMM Incorporated

Inventor： Kazuki TAKEDA ,  Changhwan PARK ,  Olufunmilola Omolade AWONIYI-OTERI

IPC: H04W36/00 ,  H04L5/00 ,  H04W48/08

Abstract: A UE may receive, from a serving cell, an activation indication for an SCell, receiving a first reference signal from the SCell, the first reference signal including at least one temporary reference signal, identify whether a second reference signal is received after processing the activation indication and before an expiration of an SCell activation time, and activate, upon identifying that the second reference signal is received, the SCell based on one or more reference signals including at least one of the first reference signal or the second reference signal. The UE may activate the SCell no later than in slot n+K, and K may be determined based on at least in part the SCell activation time.