公开(公告)号：US20250055612A1

公开(公告)日：2025-02-13

申请号：US18447779

申请日：2023-08-10

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Attia ABOTABL ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Abdelrahman Mohamed Ahmed Mohamed IBRAHIM ,  Dai LU ,  Krishna Kiran MUKKAVILLI

IPC: H04L5/00 ,  H04L5/14 ,  H04L27/26

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques may allow for a user equipment (UE) to communicate with a network entity using full-duplex communication techniques. For example, the UE may transmit, to the network entity, an indication of respective quantities of transmit chains and receive chains at the UE supports for full-duplex and half-duplex communications. In some cases, the UE may identify one or more fixed subbands within a component carrier (CC) or one or more fixed CCs that are allocated for uplink transmissions, and the UE may identify one or more guard bands between the fixed uplink subbands or uplink CCs and one or more downlink subbands or downlink CCs, respectively. In some examples, the UE may identify a guard interval between half-duplex resources and full-duplex resources to allow time for the UE to switch between the half-duplex resources and the full-duplex resources.

公开(公告)号：US20210058128A1

公开(公告)日：2021-02-25

申请号：US16996831

申请日：2020-08-18

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan RAGHAVAN ,  Juergen CEZANNE ,  Junyi LI ,  Dai LU ,  Joseph Patrick BURKE ,  Wenjun LI

IPC: H04B7/06 ,  H04B7/0456 ,  H04B7/08

Abstract: A UE may be configured to communicate using one of analog beamforming or hybrid beamforming. The UE may receive a set of beamformed signals from a base station. The UE may determine a set of angular spread values associated with a set of clusters in a channel between the base station and the UE based on the set of beamformed signals received from the base station. The UE may transmit the set of angular spread values to the base station. The UE may receive, from the base station based on the set of angular spread values, a set of transmission ranks associated with at least one cluster of the set of clusters. The UE may communicate at least one data stream with the base station across the at least one cluster using the set of transmission ranks associated with the at least one cluster of the set of clusters.

公开(公告)号：US20250096827A1

公开(公告)日：2025-03-20

申请号：US18469934

申请日：2023-09-19

Applicant: QUALCOMM Incorporated

Inventor： Dai LU ,  Cong NGUYEN ,  Charline HAO

IPC: H04B1/04

Abstract: Certain aspects of the present disclosure are directed towards apparatus and techniques for wireless communication. An example apparatus generally includes: a first transmit chain; a first receive chain; a first coupler coupled to the first transmit chain; a second coupler coupled to the first receive chain; a first analog interference cancellation (AIC) circuit having an input coupled to the first coupler and an output coupled to the first receive chain; and a first routing device coupled between the first coupler and the input of the first AIC circuit, the first routing device being further coupled between the first coupler and a digital interference cancellation (DIC) circuit.

公开(公告)号：US20210135833A1

公开(公告)日：2021-05-06

申请号：US17086368

申请日：2020-10-31

Applicant: QUALCOMM Incorporated

Inventor： Charline HAO ,  Lida AKHOONDZADEHASL ,  Joseph Patrick BURKE ,  Dai LU ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Allen Minh-Triet TRAN ,  Shimman Arvind PATEL ,  Tingfang JI ,  Krishna Kiran MUKKAVILLI

IPC: H04L5/14 ,  H04L12/947 ,  H04B7/06 ,  H04W88/08

Abstract: A base station is disclosed that includes two separated antenna arrays. In a TDD mode of operation, both arrays are used for either transmit or receive. In a sub-band full-duplex mode of operation, one array is used to transmit downlink symbols while the remaining array is used to receive uplink symbols.