公开(公告)号：US20210321443A1

公开(公告)日：2021-10-14

申请号：US17225912

申请日：2021-04-08

Applicant: QUALCOMM Incorporated

Inventor： Kazuki Takeda ,  Wanshi Chen ,  Peter Gaal ,  Xiaoxia Zhang ,  Huilin Xu ,  Mostafa Khoshnevisan ,  Tao Luo ,  Alberto Rico Alvarino

IPC: H04W72/12 ,  H04W76/10 ,  H04W72/04 ,  H04L1/00 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit downlink control information (DCI) to a user equipment (UE) indicating a joint field for at least a first component carrier (CC) and a second CC of a carrier aggregation configuration. For example, the joint field may include a rate matching (RM) indication for the first CC and the second CC, a zero power channel state information reference signal (ZP-CSI-RS) indication for the first CC and the second CC, or both. In some cases, the RM indication may include a common RM resource (RMR) configuration applicable for both the first CC and the second CC or per-CC RMR configurations that indicate separate RMRs for each of the CCs. Additionally, the ZP-CSI-RS indication may include a set identifier that indicates a resource set for ZP-CSI-RS resources for both the first CC and the second CC.

公开(公告)号：US20210314993A1

公开(公告)日：2021-10-07

申请号：US17220173

申请日：2021-04-01

Applicant: QUALCOMM Incorporated

Inventor： Kazuki Takeda ,  Wanshi Chen ,  Peter Gaal ,  Xiaoxia Zhang ,  Huilin Xu ,  Mostafa Khoshnevisan ,  Tao Luo ,  Alberto Rico Alvarino

IPC: H04W72/12 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may establish a connection, with base station, over a first and second component carrier and may monitor a search space configured for scheduling multiple component carriers. In some cases, the UE may be configured to monitor a search space allocated for a virtual component carrier associated with scheduling multiple component carriers, or the UE may be configured to monitor for a subset of physical downlink control channel (PDCCH) candidates in search spaces associated with the first and second component carriers, where the subset of PDCCH candidates may be allocated for multi-component carrier scheduling. The UE may receive downlink control information (DCI) that schedules a set of data transmissions over the first and second component carriers and the UE may perform or receive the set of data transmissions over the first and second component carrier.

公开(公告)号：US20210185693A1

公开(公告)日：2021-06-17

申请号：US17115779

申请日：2020-12-08

Applicant: QUALCOMM INCORPORATED

Inventor： Kazuki Takeda ,  Marco Papaleo ,  Alessio Marcone

IPC: H04W72/08 ,  H04L5/14 ,  H04W76/10

Abstract: Wireless communications systems and methods related to reducing user equipment (UE)-to-UE cross-link interference are provided. A user equipment (UE) may receive from a base station (BS), a time-division-duplexing (TDD) pattern. The UE may establish a guard band on uplink resources from resources specified in the TDD pattern. Alternatively, the UE may reduce power to uplink resources from the resources specified in the TDD pattern. The UE transmits the resources using a carrier and as specified in the TDD pattern.

公开(公告)号：US20210112500A1

公开(公告)日：2021-04-15

申请号：US17066666

申请日：2020-10-09

Applicant: QUALCOMM Incorporated

Inventor： Kazuki Takeda ,  Le Liu ,  Alberto Rico Alvarino ,  Wanshi Chen

IPC: H04W52/10 ,  H04W52/32 ,  H04W72/12 ,  H04L5/00 ,  H04W52/24

Abstract: Methods, systems, and devices for wireless communications are described. In one example, a user equipment (UE) may be configured to receive a control message scheduling a multicast transmission, and the UE may identify an open loop power control parameter for transmitting acknowledgment feedback responsive to the multicast transmission. The identification of the open loop power control parameter may be based on the transmission being multicast to a plurality of UEs, and in some cases a UE may identify an open loop power control parameter that is different than an open loop power control parameter associated with feedback responsive to unicast transmissions. In various examples, open loop power control parameters may correspond to respective feedback resources (e.g., according to a configuration for a set of open loop power control parameters), or to respective physical resource indicators (e.g., as signaled in downlink control information).

公开(公告)号：US20210051703A1

公开(公告)日：2021-02-18

申请号：US16990962

申请日：2020-08-11

Applicant: QUALCOMM Incorporated

Inventor： Kazuki Takeda ,  Wanshi Chen ,  Seyedkianoush Hosseini ,  Alberto Rico Alvarino ,  Peter Gaal ,  Xiao Feng Wang

IPC: H04W72/14 ,  H04W76/15 ,  H04W72/04 ,  H04W72/12 ,  H04W24/08 ,  H04W8/24 ,  H04L5/14

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station and while operating in a dual connectivity mode, an uplink grant in a first subframe of a set of subframes. The uplink grant may schedule transmission of uplink data. The UE may determine a second subframe of the set of subframes to transmit the uplink data and a third subframe of the set of subframes to monitor for feedback associated with transmission of the uplink data. The second subframe and the third subframe may be determined based on combinations of a primary cell time division duplex (TDD) uplink-downlink (UL-DL) configuration and a DL-reference UL-DL configuration. each of the combinations may have at least three uplink transmission subframes or three downlink monitoring subframes within a ten-subframe cycle. The UE may thus perform wireless communications in accordance with the transmission timelines.

公开(公告)号：US20210014095A1

公开(公告)日：2021-01-14

申请号：US16921910

申请日：2020-07-06

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Wei Yang ,  Seyedkianoush Hosseini ,  Seyed Ali Akbar Fakoorian ,  Kazuki Takeda ,  Wanshi Chen

IPC: H04L27/26 ,  H04W72/04 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described to enable a user equipment (UE) to bundle reference signals, such as demodulation reference signals (DMRSs), by maintaining one or more coherence properties across DMRSs. A base station may transmit an indication of a DMRS bundling configuration to the UE, and the UE may transmit a DMRS bundling capability indication to the base station. The base station may transmit DCI to the UE, and the UE may determine whether to maintain or alter DMRS bundling (for example, maintain or alter one or more coherence properties) for one or more physical shared channels based on the DCI. The UE may maintain or alter one or more coherence properties of the one or more physical shared channels based on determining whether to maintain DMRS bundling and may transmit the one or more physical shared channels and associated DMRSs to the base station.

公开(公告)号：US20210007122A1

公开(公告)日：2021-01-07

申请号：US16918839

申请日：2020-07-01

Applicant: QUALCOMM Incorporated

Inventor： Kazuki Takeda ,  Seyedkianoush Hosseini

IPC: H04W72/12 ,  H04W72/14 ,  H04W52/34 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a maximum transmission power for an uplink transmission on a first cell of a first cell group (CG) based on a direction of communications (e.g., uplink, downlink, or flexible) with a separate cell of a second CG during a same duration of the uplink transmission and within a same first frequency range, where the direction of communications is either an actual direction or an assumed direction. The UE may receive an uplink grant scheduling the uplink transmission during a symbol and within the first frequency range, determine the maximum transmission power for the UE based on the direction of communications for the separate cell during the symbol and within the first frequency range, and subsequently transmit the uplink transmission in accordance with the maximum transmission power.