公开(公告)号：US20130286902A1

公开(公告)日：2013-10-31

申请号：US13840397

申请日：2013-03-15

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Hao Xu ,  Youngbin Wei

IPC: H04W24/02

CPC classification number: H04W24/02 ,  H04J11/0056 ,  H04L27/2602 ,  H04L27/2613

Abstract: Dynamically changing uplink-downlink configurations in adjacent cells in a TDD networks introduces interference to special subframes between downlink and uplink transmissions. Adaptation is disclosed of different special subframe configurations for certain subframes based on different communication environment characteristics experienced on the special subframes. The different special subframe configurations may be differ among special subframe within the same or in a different radio frames or may be applied to a corresponding subframe in a neighboring cell. Over time, as changes to the communication environment are detected, the special subframe configurations may adapt to the communication environment characteristics.

Abstract translation: 在TDD网络中的相邻小区中的动态变化的上行链路 - 下行链路配置对下行链路和上行链路传输之间的特殊子帧引入干扰。 基于特殊子帧上经历的不同通信环境特性​​，针对某些子帧公开了不同特殊子帧配置的适配。 不同的特殊子帧配置可以在相同或不同无线电帧内的特殊子帧之间不同，或者可以应用于相邻小区中的相应子帧。 随着时间的推移，随着对通信环境的改变的检测，特殊的子帧配置可以适应通信环境的特性。

公开(公告)号：US20130258864A1

公开(公告)日：2013-10-03

申请号：US13802441

申请日：2013-03-13

Applicant: QUALCOMM INCORPORATED

Inventor： Wanshi Chen ,  Jelena Damnjanovic ,  Peter Gaal ,  Hao Xu

IPC: H04W72/12

CPC classification number: H04W72/12 ,  H04L1/1854 ,  H04L1/1861 ,  H04L1/1887 ,  H04L1/1893 ,  H04L5/001 ,  H04W72/1263

Abstract: Techniques are provided for carrier aggregation and H-ARQ timing in LTE or the like. For example, there is provided a method, operable by a mobile device, that may involve identifying a first component carrier and a second component carrier among a plurality of component carriers to be aggregated, wherein a first number of subframes of a subframe type in the first component carrier is less than a second number of subframes of the same subframe type in the second component carrier. The method may further involve receiving a configuration to monitor a control channel for the second component carrier on the first component carrier. The method further may further involve determining a reference uplink-downlink subframe configuration for the second component carrier based at least in part on the subframe type and the received configuration for the control channel.

Abstract translation: 提供技术用于LTE等中的载波聚合和H-ARQ定时。 例如，提供了一种可由移动设备操作的方法，其可以包括识别要聚合的多个分量载波之中的第一分量载波和第二分量载波，其中，在所述多个分组载波中的第一数量子帧类型 第一分量载波小于第二分量载波中相同子帧类型的第二数量子帧。 该方法还可以包括接收配置以监视第一分量载波上的第二分量载波的控制信道。 该方法还可以进一步包括至少部分地基于子帧类型和用于控制信道的接收配置来确定用于第二分量载波的参考上行链路 - 下行链路子帧配置。

公开(公告)号：US20130136023A1

公开(公告)日：2013-05-30

申请号：US13746134

申请日：2013-01-21

Applicant: QUALCOMM INCORPORATED

Inventor： Xiaoxia Zhang ,  Darshan Jetly ,  Hao Xu ,  Robert Fuchs

IPC: H04W24/00

CPC classification number: H04W24/00 ,  H04J13/0062 ,  H04L5/0007 ,  H04L25/0206 ,  H04L25/0228 ,  H04W24/10 ,  H04W28/04 ,  H04W72/00 ,  H04W74/0833

Abstract: Providing for noise estimation in wireless communication, and particularly for access request signals transmitted by a user equipment (UE), is described herein. By way of example, a wireless signal receiver can employ unused signal dimensions of a wireless network for noise estimation. In addition, the unused signal dimensions can be selected for time-frequency resources that are associated with a particular wireless channel, in order to obtain a noise estimate for that channel. By employing unused signal dimensions, a noise measurement is likely to include no other signal transmissions, and provide an accurate estimate of noise on that channel. According to various aspects of the subject disclosure, one or more Chu sequences employed for signal transmissions, root sequences thereof, or one or more cyclic shifts of a root sequence can be employed for the unused signal dimension.

Abstract translation: 在这里描述了在无线通信中，特别是用于由用户设备（UE）发送的接入请求信号的噪声估计。 作为示例，无线信号接收机可以采用无线网络的未使用的信号维度进行噪声估计。 此外，可以为与特定无线信道相关联的时间 - 频率资源选择未使用的信号维度，以便获得该信道的噪声估计。 通过采用未使用的信号尺寸，噪声测量可能不包括其他信号传输，并且提供该信道上的噪声的精确估计。 根据本发明的各个方面，可以对未使用的信号维度采用用于信号传输，根系序列或根序列的一个或多个循环移位的一个或多个Chu序列。

公开(公告)号：US20130121271A1

公开(公告)日：2013-05-16

申请号：US13673834

申请日：2012-11-09

Applicant: Qualcomm Incorporated

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

IPC: H04W72/02 ,  H04W72/04

CPC classification number: H04W72/02 ,  H04L1/0026 ,  H04L1/1671 ,  H04L1/1861 ,  H04L5/001 ,  H04L5/0055 ,  H04L5/0057 ,  H04W72/0473

Abstract: Systems and methods for managing the transmission of multiple signals on one or more uplink (UL) channels using carrier aggregation in LTE-A systems. A UE simultaneously transmits signals such as ACK/NACK and periodic CSI using one or more uplink channels, such as a physical uplink shared channel (PUSCH) and/or a physical uplink control channel (PUCCH), by increasing the resources used to transmit at least one of those signals. According to one aspect, a UE simultaneously transmits ACK/NACK signals and periodic CSI signals by multiplexing those signals on the PUSCH. Certain aspects avoid frequently dropped periodic CSI signals and provide mechanisms to ensure that ACK/NACK signals are transmitted.

Abstract translation: 用于在LTE-A系统中使用载波聚合管理在一个或多个上行链路（UL）信道上传输多个信号的系统和方法。 UE使用一个或多个上行链路信道（诸如物理上行链路共享信道（PUSCH）和/或物理上行链路控制信道（PUCCH））同时发送诸如ACK / NACK和周期性CSI的信号，通过增加用于在 这些信号中至少有一个。 根据一方面，UE通过在PUSCH上复用这些信号同时发送ACK / NACK信号和周期性CSI信号。 某些方面避免频繁掉线的周期性CSI信号，并提供确保发送ACK / NACK信号的机制。

公开(公告)号：US20130121222A1

公开(公告)日：2013-05-16

申请号：US13663162

申请日：2012-10-29

Applicant: Qualcomm Incorporated

Inventor： Tao Luo ,  Yongbin Wei ,  Rajat Prakash ,  Hao Xu

IPC: H04W36/20

CPC classification number: H04W36/04 ,  H04W36/06 ,  H04W36/165 ,  H04W36/20 ,  H04W36/22

Abstract: Certain aspects of the present disclosure provide methods, apparatus, and computer-program products for improving network loading (e.g., by enabling inter-frequency handover and/or traffic offloading between neighboring base stations). In aspects, the proposed methods may include transmitting a beacon signal on a frequency (e.g., carrier frequency) other than the frequency currently used by a base station. The base station may select a cell identity (ID) and transmit one or more beacon signals on the frequency using the selected cell ID. The beacon signal may be used to decide whether or not to perform an inter-frequency handover.

Abstract translation: 本公开的某些方面提供了用于改善网络负载的方法，装置和计算机程序产品（例如，通过启用相邻基站之间的频间切换和/或流量卸载）。 在方面中，所提出的方法可以包括在除基站当前使用的频率之外的频率（例如，载波频率）上发送信标信号。 基站可以使用所选择的小区ID来选择小区标识（ID）并且在频率上发送一个或多个信标信号。 信标信号可以用于决定是否执行频率间切换。

公开(公告)号：US12301501B2

公开(公告)日：2025-05-13

申请号：US17597756

申请日：2019-08-05

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu Li ,  Chao Wei ,  Hao Xu

IPC: H04L5/00 ,  H04W72/0446 ,  H04W72/23

Abstract: Various aspects of the present disclosure relate to wireless communication. In some aspects, a user equipment (UE) may receive a master information block that identifies a first control resource set (CORESET) for a first category of UEs and a first common search space (CSS) associated with the first CORESET. The first CORESET and the first CSS may identify one or more overlapping resource grids that overlap in time and frequency with one or more corresponding resource grids of a second CORESET and a second CSS, associated with the second CORESET, for a second category of UEs, and one or more non-overlapping resource grids that include a corresponding one or more time domain resources that are earlier than a time domain resource of the second CORESET and the second CSS. The UE may monitor for a physical downlink control channel candidate included in the first CORESET and the first CSS.

公开(公告)号：US20250150320A1

公开(公告)日：2025-05-08

申请号：US18833331

申请日：2022-03-15

Applicant: QUALCOMM INCORPORATED

Inventor： Wei Liu ,  Thomas Joseph Richardson ,  Liangming Wu ,  Changlong Xu ,  Hao Xu

IPC: H04L27/34 ,  H04L1/00 ,  H04L27/26 ,  H04L27/36

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may perform, on a set of information bits, a distribution matching procedure to obtain a distributed amplitude symbol sequence. In some cases, the wireless device may perform the distribution matching procedure using approximations of quantities of distributed amplitude symbol sequences that each have a same length and a same transmission energy. The wireless device may then encode the distributed amplitude symbol sequence and transmit the encoded distributed amplitude sequence. A device that receives the encoded distributed amplitude sequence may perform a distribution dematching procedure on the distributed amplitude sequence based on approximating quantities of distributed amplitude symbol sequences.

公开(公告)号：US20250150213A1

公开(公告)日：2025-05-08

申请号：US18835282

申请日：2022-03-17

Applicant: QUALCOMM INCORPORATED

Inventor： Shaozhen Guo ,  Changlong Xu ,  Jing Sun ,  Xiaoxia Zhang ,  Chih-Hao Liu ,  Hao Xu ,  Luanxia Yang ,  Siyi Chen

IPC: H04L1/1829 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive configuration information indicating a sidelink resource pool, a time gap, and a periodicity of feedback occasions. The UE may generate feedback bits associated with multiple received sidelink messages based on the configuration information. The UE may transmit the feedback bits in a single, multi-bit feedback message according to one or more rules. In some examples, the UE may drop one or more sets of feedback bits (e.g., in the case of a collision of too many feedback messages in a single slot) based on a weighted average priority level of one or more valid feedback bits in each of multiple sets of feedback bits.

公开(公告)号：US20250105956A1

公开(公告)日：2025-03-27

申请号：US18727283

申请日：2023-03-28

Applicant: QUALCOMM Incorporated

Inventor： Jing Dai ,  Liangming Wu ,  Hao Xu ,  Peter Gaal ,  Wanshi Chen

IPC: H04L5/00

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support selection and quantization of time domain coefficients through an extended eType-II codebook. In a first aspect, a method of wireless communication includes measuring, by a user equipment (UE), a bundle of channel state information reference signals (CSI-RS) to determine channel quality information across a spatial domain, a frequency domain, and a time domain. The UE generates a first bitmap identifying a first plurality of non-zero coefficients (NZCs) selected to represent a first CSI for the spatial domain and the frequency domain, and a second bitmap identifying a second plurality of NZCs selected to represent a second CSI for the time domain. The UE would then transmit one or more CSI reports including one or both of the first bitmap and the second bitmap. Other aspects and features are also claimed and described.

公开(公告)号：US12212506B2

公开(公告)日：2025-01-28

申请号：US17759301

申请日：2020-02-14

Applicant: QUALCOMM Incorporated

Inventor： Jing Dai ,  Chao Wei ,  Jing Lei ,  Qiaoyu Li ,  Min Huang ,  Hao Xu

IPC: H04L12/00 ,  H04L5/00 ,  H04W72/044 ,  H04W72/23

Abstract: In an aspect, a BS is configured as a serving cell of a UE. The BS transmits data to the UE in accordance with a frequency hopping scheme over a first set of T-F resources of a first BWP and a second set of T-F resources of a second BWP. The BS (or another BS) further transmits, to the UE over a third BWP that is different than the second BWP, a PDCCH including a PI field with a PI associated with the transmitted data over the second set of T-F resources of the second BWP. The UE receives the data and the PDCCH. The UE processes the received data over (at least) the second set of T-F resources based on the PI.