公开(公告)号：US20130294268A1

公开(公告)日：2013-11-07

申请号：US13873112

申请日：2013-04-29

Applicant: QUALCOMM INCORPORATED

Inventor： Hao Xu ,  Wanshi Chen ,  Peter Gaal ,  Stefan Geirhofer ,  Yongbin Wei

IPC: H04W72/08

CPC classification number: H04W72/082 ,  H04W52/243

Abstract: A method for mitigating interference in a wireless network includes an eNodeB and/or a UE identifying interference. The eNodeB may identify the interfering TDD configurations based on a downlink signal of a neighboring eNodeB received during an uplink timeslot for a UE associated with the eNodeB. Likewise, the UE may identify an interfering UE based on an uplink signal received during a downlink timeslot for an eNodeB associated with the UE. The eNodeB performs interference management based at least in part on the identified interference.

Abstract translation: 用于减轻无线网络中的干扰的方法包括识别干扰的eNodeB和/或UE。 eNodeB可以基于在与eNodeB相关联的UE的上行链路时隙期间接收的相邻eNodeB的下行链路信号来识别干扰TDD配置。 类似地，UE可以基于在与UE相关联的eNodeB的下行链路时隙期间接收到的上行链路信号来识别干扰UE。 eNodeB至少部分地基于所识别的干扰来执行干扰管理。

公开(公告)号：US20130182799A1

公开(公告)日：2013-07-18

申请号：US13738805

申请日：2013-01-10

Applicant: QUALCOMM Incorporated

Inventor： Stefan Geirhofer ,  Wanshi Chen ,  Tao Luo ,  Peter Gaal ,  Hao Xu

IPC: H04L27/00

CPC classification number: H04L27/00 ,  H04W56/00

Abstract: Certain aspects of the present disclosure relate to a method of wireless communication that includes receiving one or more channel state information reference signal (CSI-RS) resources. The method further includes performing timing estimation based on the one or more CSI-RS resources, receiving a demodulation reference signal (DM-RS) based transmission, and utilizing the timing estimation to decode the DM-RS based transmission.

Abstract translation: 本公开的某些方面涉及一种包括接收一个或多个信道状态信息参考信号（CSI-RS）资源的无线通信方法。 该方法还包括基于一个或多个CSI-RS资源执行定时估计，接收基于解调参考信号（DM-RS）的传输，并利用定时估计来解码基于DM-RS的传输。

公开(公告)号：US20130176881A1

公开(公告)日：2013-07-11

申请号：US13782649

申请日：2013-03-01

Applicant: Qualcomm Incorporated

Inventor： Zhifei Fan ,  Hao Xu

IPC: H04B15/00

CPC classification number: H04B15/00 ,  H04B1/7105 ,  H04B2201/70702 ,  H04L25/0328 ,  H04W72/0406

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in which one or more semi-static parameters associated with at least one neighboring eNode B (eNB) and an interfering user equipment (UE) are detected, at an eNB, and a blind interference reduction scheme based on the one or more detected semi-static parameters to reduce a signal from the interfering UE is applied.

Abstract translation: 提供了一种用于无线通信的方法，装置和计算机程序产品，其中在eNB处检测到与至少一个相邻eNode B（eNB）和干扰用户设备（UE）相关联的一个或多个半静态参数 并且应用基于一个或多个检测到的半静态参数以减少来自干扰UE的信号的盲目干扰减少方案。

公开(公告)号：US20130176874A1

公开(公告)日：2013-07-11

申请号：US13706222

申请日：2012-12-05

Applicant: QUALCOMM Incorporated

Inventor： Hao Xu ,  Madhavan Srinivasan Vajapeyam ,  Yongbin Wei

IPC: H04W52/24

CPC classification number: H04W52/24 ,  H04W52/146 ,  H04W52/242 ,  H04W52/244 ,  H04W52/283

Abstract: According to an aspect of the present disclosure, a serving base station determines a path loss and/or a distance measurement between the serving base station and a neighbor base station. A cell-specific power control parameter and a UE transmission power may be determined based on the determined path loss and/or distance measurement. Finally, the serving base station assigns a UE transmission rate based at least on a region where a UE is located, the region being within a serving cell

Abstract translation: 根据本公开的一个方面，服务基站确定服务基站和相邻基站之间的路径损耗和/或距离测量。 可以基于确定的路径损耗和/或距离测量来确定小区特定功率控制参数和UE发射功率。 最后，服务基站至少基于UE所在的区域分配UE传输速率，该区域在服务小区内

公开(公告)号：US20130136079A1

公开(公告)日：2013-05-30

申请号：US13744758

申请日：2013-01-18

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Hao Xu

IPC: H04W28/04

CPC classification number: H04W28/04 ,  H04W16/32 ,  H04W72/0413 ,  H04W72/1278 ,  H04W84/045

Abstract: Aspects are described for reducing interference in wireless systems. In a first embodiment, an uplink acknowledgment region associated with a macro cell is determined, and an assignment of uplink control resources is restricted to a region within the uplink acknowledgment region. A control signal is then transmitted to user equipment via the assignment of uplink control resources. In another embodiment, control signals are received from wireless terminals, which include desired uplink control signals associated with an access point base station, as well as interfering uplink acknowledgement signals associated with macro cells. The control signals may then be regenerated by cancelling the set of interfering signals from the control signals. The desired uplink control signals are then decoded.

Abstract translation: 描述了减少无线系统干扰的方面。 在第一实施例中，确定与宏小区相关联的上行链路确认区域，并且上行链路控制资源的分配被限制在上行链路确认区域内的区域。 然后通过上行链路控制资源的分配将控制信号发送到用户设备。 在另一个实施例中，从无线终端接收控制信号，无线终端包括与接入点基站相关联的期望的上行链路控制信号，以及与宏小区相关联的干扰上行链路确认信号。 然后可以通过从控制信号中消除一组干扰信号来再生控制信号。 然后解码所需的上行链路控制信号。

公开(公告)号：US20130121274A1

公开(公告)日：2013-05-16

申请号：US13676961

申请日：2012-11-14

Applicant: QUALCOMM INCORPORATED

Inventor： Wanshi Chen ,  Hao Xu ,  Juan Montojo ,  Peter Gaal

IPC: H04W72/04

CPC classification number: H04W72/042 ,  H04L5/0053

Abstract: Certain aspects of the present disclosure relate to techniques for reducing the decoding complexity for low cost devices (e.g., low cost UEs). One technique may include simplifying the PDCCH format. This may include generating a compact DCI format for transmitting DCI to a low cost device. The compact DCI format may correspond to at least one standard DCI format used by a regular UE and may comprise a reduced number of bits when compared to the standard DCI format. Another technique may include reducing the number of blind decodes. This technique may include selecting a set of resources for transmitting DCI from a limited set of decoding candidates, such that a receiving low cost device need only perform blind decodes for the limited set of decoding candidates.

Abstract translation: 本公开的某些方面涉及用于降低低成本设备（例如低成本UE）的解码复杂度的技术。 一种技术可以包括简化PDCCH格式。 这可以包括生成用于将DCI发送到低成本设备的紧凑DCI格式。 紧凑的DCI格式可以对应于常规UE使用的至少一种标准DCI格式，并且与标准DCI格式相比可以包括减少的比特数。 另一技术可以包括减少盲解码的数量。 该技术可以包括从有限的一组解码候选中选择用于发送DCI的资源集合，使得接收低成本设备仅需要对有限的解码候选集进行盲解码。

公开(公告)号：US12302301B2

公开(公告)日：2025-05-13

申请号：US17903695

申请日：2022-09-06

Applicant: QUALCOMM Incorporated

Inventor： Chao Wei ,  Alberto Rico Alvarino ,  Le Liu ,  Wanshi Chen ,  Xiao Feng Wang ,  Hao Xu

IPC: H04L12/28 ,  H04L5/00 ,  H04W72/0453 ,  H04J1/16 ,  H04W74/0833

Abstract: A method, base station (BS), user equipment (UE), apparatus, and computer program product for wireless communication are provided. A BS and a UE may communicate using a narrowband Internet of Things (NB-IoT) communication system. However, a frequency, time, and/or power associated with transmission of a SIB1-NB on a non-anchor carrier may not be configured for NB-IoT. In some aspects, the BS may determine parameters, such as a time domain location parameter, a frequency domain location parameter, a quantity of repetitions, a power boosting parameter, and/or the like for a transmission in NB-IoT. In some aspects, a UE may determine to transmit a connection request message on a different carrier than a random access channel message.

公开(公告)号：US20250142308A1

公开(公告)日：2025-05-01

申请号：US18837160

申请日：2022-04-20

Applicant: QUALCOMM INCORPORATED

Inventor： Kangqi Liu ,  Alexei Yurievitch Gorokhov ,  Ruiming Zheng ,  Qiaoyu Li ,  Hao Xu ,  Chao Wei ,  Mingxi Yin

IPC: H04W4/90 ,  H04B7/185 ,  H04W84/06 ,  H04W88/04

Abstract: Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support emergency messaging using a mobile relay. For example, a first user equipment (UE), may transmit a first emergency message indicating a request for relaying a second emergency message to one or more network entities, the first UE being out-of-coverage of a network entity. The first UE may receive, from a second UE associated with an aircraft, a feedback message in response to the first emergency message and may transmit, to the second UE, a second emergency message based on receiving the feedback message. The second UE may receive the second emergency message and transmit, over an air-to-ground wireless communications network, an indication based on the first emergency message and the second emergency message.

公开(公告)号：US12289774B2

公开(公告)日：2025-04-29

申请号：US17634618

申请日：2020-08-11

Applicant: Qualcomm Incorporated

Inventor： Chao Wei ,  Qiaoyu Li ,  Hao Xu ,  Wanshi Chen

IPC: H04W74/0833 ,  H04W56/00 ,  H04W72/0446 ,  H04W72/1263 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for a user equipment (UE) receiving, from a base station, one or more random access channel (RACH) configurations. The RACH configurations may allocate resources for a contention-based RACH procedure for accessing a wireless network. Based on the RACH configurations, the UE may determine a set of random access occasions for an association period. From the set of random access occasions, the UE may map one or more indices of a plurality of synchronization signal blocks to one or more random access occasions. Using the one or more random access occasions, the UE may transmit a random access sequence, including one or more repetitions of the random access sequence to the base station to access the wireless network.

公开(公告)号：US12284012B2

公开(公告)日：2025-04-22

申请号：US18286956

申请日：2021-06-17

Applicant: QUALCOMM Incorporated

Inventor： Danlu Zhang ,  Min Huang ,  Yu Zhang ,  Hao Xu

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

Abstract: An example aspect comprises selecting an azimuth mode for an OAM MIMO transmission by a transmitter that includes a first number of circles that each include a second number of antenna elements, wherein the azimuth mode defines a DFT vector of a size less than or equal to the second number; selecting, from a plurality of radial modes associated with the azimuth mode, a radial mode for the transmission, wherein the radial modes include at least a first radial mode defining a first beamforming vector and a second radial mode defining a second beamforming vector, wherein each one of the first and second beamforming vectors includes the DFT vector weighted and repeated for a number of times less than or equal to the first number, wherein the first and second beamforming vectors are orthogonal to each other; and transmitting a signal using a beam configured according to the radial mode.