公开(公告)号：US11824688B2

公开(公告)日：2023-11-21

申请号：US17309369

申请日：2018-11-21

Applicant: QUALCOMM Incorporated

Inventor： Bo Chen ,  Pavan Kumar Vitthaladevuni ,  Joseph Binamira Soriaga ,  Ruifeng Ma ,  Alexandros Manolakos ,  Yeliz Tokgoz ,  Tingfang Ji ,  Hao Xu

IPC: H04W24/10 ,  H04L25/02 ,  H04L5/00

CPC classification number: H04L25/0202 ,  H04L5/0057 ,  H04W24/10

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a signaling communication that includes information specifying whether a channel state information reference signal (CSI-RS) precoding resource block group includes a same quantity of resource blocks (RBs) that is included in a CSI reporting subband configured for the UE. The CSI-RS precoding resource block group may enable the UE to perform a channel estimation based at least in part on a CSI-RS transmitted by a base station. The UE may perform the channel estimation based at least in part on the CSI-RS transmitted by the base station. The channel estimation may be based at least in part on whether the CSI-RS precoding resource block group includes the same quantity of RBs that is included in the CSI reporting subband configured for the UE. Numerous other aspects are provided.

公开(公告)号：US20200328792A1

公开(公告)日：2020-10-15

申请号：US16305591

申请日：2017-06-22

Applicant: Qualcomm Incorporated

Inventor： Chao Wei ,  Wanshi Chen ,  Peter Gaal ,  Bo Chen

IPC: H04B7/06 ,  H04L5/00

Abstract: Mapping with CSI-RS resources with a code divisional multiplex (CDM) length of eight is disclosed. Such mapping allows for flexibly configuring the set of resource elements (REs) for mapping based on the available CSI-RS resources.

公开(公告)号：US12250675B2

公开(公告)日：2025-03-11

申请号：US17768539

申请日：2019-11-01

Applicant: Qualcomm Incorporated ,  Chenxi Hao ,  Yiqing Cao ,  Bo Chen ,  Peter Gaal ,  Hao Xu

Inventor： Chenxi Hao ,  Yiqing Cao ,  Bo Chen ,  Peter Gaal ,  Hao Xu

IPC: H04W72/12 ,  H04W72/1268

Abstract: Methods, systems, and devices for wireless communications are described. In some cases, a user equipment (UE) may In support multiple component carriers that may be used to transmit uplink transmissions. One carrier may be used at a time such that the may switch between the carriers based on an uplink transmission schedule. In some cases, switching may be limited by a consecutive uplink switching rule or UE capability. In some cases, the gap between two consecutive uplink carrier switching operations may be limited to a resource (e.g., slot, symbol), such that the UE may expect to perform at most one switching operation per resource. In some implementations, the gap between two consecutive uplink carrier switching operations may be limited to a duration (e. g., 14 symbols, 4 symbols), such that the UE may expect to perform at most one switching operation per a duration less than or equal to a threshold.

公开(公告)号：US11546029B2

公开(公告)日：2023-01-03

申请号：US17310312

申请日：2020-01-28

Applicant: Qualcomm Incorporated

Inventor： Joseph Binamira Soriaga ,  Pavan Kumar Vitthaladevuni ,  Bo Chen ,  Ruifeng Ma ,  Yu Zhang ,  Alexandros Manolakos ,  Tingfang Ji

IPC: H04B7/0456 ,  H04B7/06 ,  H04L1/00 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. Techniques described herein provide for a user equipment (UE) receiving a set of downlink reference signals associated with a downlink channel. In some cases, the set of downlink reference signals may include a channel state information reference signals (CSI-RS). The UE may calculate a transmission rank and a channel quality based on the received set of downlink reference signals. In some cases, the indication of the transmission rank may include a rank indication (RI), and the indication of the channel quality includes a channel quality indicator (CQI). The UE may then transmit the indications of the transmission rank and the channel quality using an uplink control channel, and may transmit an indication of a remaining channel state feedback using a precoded uplink reference signal.

公开(公告)号：US11075679B2

公开(公告)日：2021-07-27

申请号：US16305591

申请日：2017-06-22

Applicant: QUALCOMM Incorporated

Inventor： Chao Wei ,  Wanshi Chen ,  Peter Gaal ,  Bo Chen

IPC: H04B7/06 ,  H04L5/00 ,  H04J13/00

Abstract: Mapping with CSI-RS resources with a code divisional multiplex (CDM) length of eight is disclosed. Such mapping allows for flexibly configuring the set of resource elements (REs) for mapping based on the available CSI-RS resources.

公开(公告)号：US20140056239A1

公开(公告)日：2014-02-27

申请号：US13882246

申请日：2010-12-01

Applicant: QUALCOMM Incorporated

Inventor： Jainqiang Zhang ,  Jiming Guo ,  Mingxi Fan ,  Bo Chen

IPC: H04W52/24 ,  H04W72/12

CPC classification number: H04W52/242 ,  H04L1/0007 ,  H04W52/146 ,  H04W52/286 ,  H04W72/1205 ,  H04W72/1268

Abstract: Certain aspects of the present disclosure propose techniques for power control for high-efficiency scheduling for Time Division Synchronous Code Division Multiple Access (TD-SCDMA) High Speed Uplink Packet Access (HSUPA). The basic principle of this power control for a scheduled Enhanced Dedicated Channel (E-DCH) Physical Uplink Channel (E-PUCH) is that all information for a transport block size (TBS) decision is made available at a user equipment (UE). Certain aspects provide a method for wireless communications. The method generally includes receiving, from a UE, an uplink signal, determining a reference uplink power level based on a filtered interference power of the received signal, and transmitting an indication of the reference uplink power level to the UE.

Abstract translation: 本公开的某些方面提出了用于时分同步码分多址（TD-SCDMA）高速上行链路分组接入（HSUPA）的高效率调度的功率控制技术。 用于调度的增强型专用信道（E-DCH）物理上行链路信道（E-PUCH）的该功率控制的基本原理是在用户设备（UE）处使得用于传输块大小（TBS）决策的所有信息都可用。 某些方面提供无线通信的方法。 该方法通常包括从UE接收上行链路信号，基于所接收信号的滤波干扰功率确定参考上行链路功率电平，并向UE发送参考上行链路功率电平的指示。