公开(公告)号：US20130121168A1

公开(公告)日：2013-05-16

申请号：US13663912

申请日：2012-10-30

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Yongbin Wei ,  Peter Gaal ,  Durga Prasad Malladi ,  Wanshi Chen

IPC: H04W72/04

CPC classification number: H04W72/042 ,  H04L1/0046 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0073 ,  H04W72/082

Abstract: Certain aspects of the present disclosure relate to a technique for blindly decoding interfering cell Physical Downlink Control Channel (PDCCH) to acquire interfering cell Physical Downlink Shared Channel (PDSCH) transmission information. A UE may determine, for one or more aggregation levels, sets of CCEs that potentially include the PDCCH, based on available CCEs for each aggregation level and identify a set of decoding candidates based on the determination. Once the decoding candidates are decoded, the UE may perform an error correcting procedure on decoded candidates and prune out unlikely candidates. Likely decoded candidates may be further pruned based on comparison of CRC calculated using information bits only and possible Radio Network Temporary Identifiers (RNTIs). The UE may then interpret content of the PDCCH of the interfering cell based on surviving candidates. The UE may then use the interpreted PDCCH information to determine PDSCH information.

Abstract translation: 本公开的某些方面涉及用于盲目地解码干扰小区物理下行链路控制信道（PDCCH）以获取干扰小区物理下行链路共享信道（PDSCH）传输信息的技术。 基于每个聚合级别的可用CCE，UE可以针对一个或多个聚合级别确定潜在地包括PDCCH的CCE集合，并且基于该确定来识别一组解码候选。 一旦对解码候选进行解码，则UE可以对解码的候选进行纠错处理，并且修剪不太可能的候选者。 可以基于使用仅使用信息比特计算的CRC与可能的无线电网络临时标识符（RNTI）的比较来进一步修剪可能的解码候选。 然后，UE可以基于幸存的候选来解释干扰小区的PDCCH的内容。 然后，UE可以使用经解释的PDCCH信息来确定PDSCH信息。

公开(公告)号：US20130114529A1

公开(公告)日：2013-05-09

申请号：US13666670

申请日：2012-11-01

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Tao Luo ,  Jelena Damnjanovic ,  Peter Gaal ,  Juan Montojo

IPC: H04W72/04

CPC classification number: H04L1/1829 ,  H04L1/0038 ,  H04L1/1812 ,  H04L5/001 ,  H04L5/0037 ,  H04L5/0053

Abstract: An enhanced physical downlink control channel (e-PDCCH) may provide carrier aggregation (CA) enhancements, help support new carriers which may not be backwards compatible, reduce control channel capacity limitations of coordinated multipoint (CoMP) transmissions, and enhance DL MIMO. In wireless communication networks, such as Long Term Evolution (LTE), user equipments (UEs) may monitor both a common search space and a UE-specific search space in a control region. A search space may comprise a set of channel control element (CCE) locations where a UE may find its PDCCHs. One or more CCEs are used to transmit each PDCCH. Certain aspects provide methods and apparatus for determining a search space comprising a subset of CCEs located on a band edge of available frequency resources, and performing a search of the search space to decode at least one PDCCH.

Abstract translation: 增强的物理下行链路控制信道（e-PDCCH）可以提供载波聚合（CA）增强，帮助支持可能不向后兼容的新载波，减少协调多点（CoMP）传输的控制信道容量限制，并增强DL MIMO。 在诸如长期演进（LTE）的无线通信网络中，用户设备（UE）可以监视控制区域中的公共搜索空间和UE特定搜索空间。 搜索空间可以包括UE可以找到其PDCCH的一组信道控制元素（CCE）位置。 一个或多个CCE用于发送每个PDCCH。 某些方面提供了用于确定搜索空间的方法和装置，所述搜索空间包括位于可用频率资源的频带边缘上的CCE的子集，以及执行所述搜索空间的搜索以解码至少一个PDCCH。

公开(公告)号：US20130114455A1

公开(公告)日：2013-05-09

申请号：US13671404

申请日：2012-11-07

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Wanshi Chen ,  Tao Luo ,  Peter Gaal

IPC: H04W24/00

CPC classification number: H04W24/00 ,  H04L1/0026 ,  H04L1/0027 ,  H04W72/082 ,  H04W72/1247 ,  H04W88/02 ,  H04W88/08

Abstract: Collision handling of channel state information (CSI) reports is described for enhanced inter-cell interference coordination (eICIC), coordinated multipoint transmission (CoMP), and/or carrier aggregation (CA). Various aspects include prioritization schemes to resolve collisions between different CSI reporting sets in relation to the same component carrier (CC) used with transmission. Multiple stages of prioritization may identify CSI for a report based on various criteria. Tie breaker criteria may be defined for priority among CSI reports that changes for different subframes. In other aspects, PUSCH is utilized to transmit CSI for prioritized reporting sets in a subframe. In yet other aspects, if parallel PUCCH is supported, colliding CSI may be handled on a per PUCCH basis. Other aspects may allow for prioritizing periodic CSI within each of multiple CCs, and then prioritizing over different CCs to handle an interaction of CSI reports for CA, eICIC and/or CoMP.

Abstract translation: 描述了用于增强小区间干扰协调（eICIC），协同多点传输（CoMP）和/或载波聚合（CA）的信道状态信息（CSI）报告的冲突处理。 各方面包括优先化方案，以解决与传输使用的相同分量载波（CC）相关的不同CSI报告集之间的冲突。 基于各种标准的多个阶段的优先级可以识别报告的CSI。 可以针对CSI报告中针对不同子帧的更改的优先级定义断线器标准。 在其它方面，利用PUSCH在子帧中传送用于优先化报告集的CSI。 在其他方面，如果支持并行PUCCH，则可以在每个PUCCH的基础上处理冲突CSI。 其他方面可以允许在多个CC的每一个内对周期性CSI进行优先级排序，然后对不同的CC进行优先级排序以处理CA，eICIC和/或CoMP的CSI报告的交互。

公开(公告)号：US20130083704A1

公开(公告)日：2013-04-04

申请号：US13633677

申请日：2012-10-02

Applicant: QUALCOMM Incorporated

Inventor： Peter Gaal ,  Jelena M. Damnjanovic ,  Gene Fong ,  Wanshi Chen ,  Juan Montojo

IPC: H04W72/10 ,  H04W72/04

CPC classification number: H04W72/1263 ,  H04B1/44 ,  H04L5/001 ,  H04L5/1469 ,  H04W8/22 ,  H04W76/15 ,  H04W88/06

Abstract: Aspects of the present disclosure relate to methods for communicating using TDD and carrier aggregation.

Abstract translation: 本公开的方面涉及使用TDD和载波聚合进行通信的方法。

公开(公告)号：US12302409B2

公开(公告)日：2025-05-13

申请号：US17756834

申请日：2020-11-03

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Hung Dinh Ly ,  Wanshi Chen

IPC: H04W74/0833 ,  H04W16/28 ,  H04W74/08 ,  H04W76/20

Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives, during a first state, a configuration of a sounding reference signal (SRS) resource or SRS resource set, obtains an association between the SRS resource or SRS resource set and a group of random access channel (RACH) resources, and transmits, while outside the first state, a group of RACH signals using transmission properties based on the association between the SRS resource or SRS resource set and the group of RACH resources, wherein the group of RACH resources spans a plurality of adjacent frequency resources over a single time resource, or the group or RACH resources spans the plurality of adjacent frequency resources over a plurality of time resources.

公开(公告)号：US12302300B2

公开(公告)日：2025-05-13

申请号：US17810432

申请日：2022-07-01

Applicant: QUALCOMM Incorporated

Inventor： Wei Zeng ,  Wanshi Chen ,  Tingfang Ji ,  Peter Gaal

IPC: H04W72/00 ,  H04L5/00 ,  H04L5/14 ,  H04L27/00 ,  H04L27/26 ,  H04W72/0453 ,  H04W72/23 ,  H04W88/06

Abstract: Techniques are described that provide for waveform selection for uplink (UL) and/or downlink (DL) wireless transmissions based on one or more factors associated with the wireless transmission, a transmitter that is to transmit the wireless transmission, or combinations thereof. UL and DL transmissions may use one of a number of different waveforms, such as single-carrier waveforms that use a single carrier for information transmission of a wireless channel, and multi-carrier waveforms that use multiple carriers at different frequencies to transmit some of the bits on each channel. Multi-carrier transmission waveforms or single-carrier waveforms may be selected for wireless transmissions based on a bandwidth allocated for the transmissions, a capability of a transmitter that is to transmit the transmissions, or combinations thereof.

公开(公告)号：US12295005B2

公开(公告)日：2025-05-06

申请号：US17758849

申请日：2020-02-06

Applicant: QUALCOMM INCORPORATED

Inventor： Seyedkianoush Hosseini ,  Yi Huang ,  Wei Yang ,  Yu Zhang ,  Wanshi Chen ,  Krishna Kiran Mukkavilli

IPC: H04W72/23 ,  H04W24/10 ,  H04W72/1263 ,  H04W72/566

Abstract: Methods, systems, and devices for wireless communications are described. A receiving device (such as user equipment (UE)) may receive a downlink grant including an indication to report channel state information. The receiving device may identify, based on the downlink grant, a number of channel state information processing units associated with reporting the channel state information, and may determine that an available number of channel state information processing units is less than the number of channel state information processing units. In some cases, the receiving device may allocate, based on the determining, a set of channel state information processing units including the available number of channel state information processing units and one or more additional channel state information processing units. The receiving device may then transmit the channel state information report based on the set of channel state information processing units.

公开(公告)号：US12294406B2

公开(公告)日：2025-05-06

申请号：US17411312

申请日：2021-08-25

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Alexandros Manolakos ,  Weimin Duan ,  Gokul Sridharan ,  Jay Kumar Sundararajan ,  Muhammad Sayed Khairy Abdelghaffar ,  Naga Bhushan ,  Wanshi Chen ,  Taesang Yoo ,  Hwan Joon Kwon ,  Krishna Kiran Mukkavilli ,  Tingfang Ji

IPC: H04B1/525 ,  H04L1/00 ,  H04L5/14 ,  H04W4/02 ,  H04W4/40

Abstract: A communications transceiver system that employs self-interference mitigation techniques can detect static objects by using techniques that introduce angular or Doppler diversity. This can include moving Tx and Rx antennas and/or performing beam sweeping. When processing RF sensing data from reflected RF signals, self-interference mitigation techniques can be used and compensation can be made for the movement and/or beam sweeping to allow for both self-interference mitigation and detection of static objects.

公开(公告)号：US12289269B2

公开(公告)日：2025-04-29

申请号：US17754719

申请日：2020-10-10

Applicant: QUALCOMM Incorporated

Inventor： Chenxi Hao ,  Liangming Wu ,  Yu Zhang ,  Chao Wei ,  Hao Xu ,  Wanshi Chen

IPC: H04L12/28 ,  H04B7/06 ,  H04L5/00

Abstract: Certain aspects of the present disclosure provide techniques for port selection for channel state feedback with analog feedforward. A method that may be performed by a user equipment (UE) includes selecting one or more channel state information reference signals (CSI-RS) ports, of a plurality of CSI-RS ports, for the UE to report CSI. The port selection includes selecting any of the plurality of CSI-RS ports for selecting CSI-RS based on a grouping of the plurality of CSI-RS ports. The UE determines a precoding matrix indicator (PMI) formed by a linear combination of the one or more selected CSI-RS ports. The UE computes at least wideband linear combination coefficients for the selected CSI-RS ports. The UE provides the selected one or more CSI-RS ports and the computed wideband linear combination coefficients to a base station (BS) in a CSI report.

公开(公告)号：US12279293B2

公开(公告)日：2025-04-15

申请号：US17654222

申请日：2022-03-09

Applicant: QUALCOMM Incorporated

Inventor： Liangping Ma ,  Xiao Feng Wang ,  Wanshi Chen ,  Changhwan Park ,  Bharat Shrestha ,  Ayan Sengupta ,  Alberto Rico Alvarino ,  Umesh Phuyal ,  Peter Gaal ,  Harikumar Krishnamurthy ,  Juan Montojo

IPC: H04W72/11 ,  H04W72/21 ,  H04W72/23 ,  H04W72/543 ,  H04W84/06

Abstract: Aspects present herein relate to methods and devices for wireless communication including an apparatus, e.g., a UE and/or a base station. The apparatus may identify at least one scheduling offset associated with a propagation delay between a base station of a NTN and the UE. The apparatus may also select a first scheduling offset of the at least one scheduling offset associated with the propagation delay between the base station and the UE. Additionally, the apparatus may transmit, to the base station, an uplink transmission based on the first scheduling offset, the uplink transmission being associated with a PUSCH, a PUCCH, or a PRACH.