公开(公告)号：US20130250793A1

公开(公告)日：2013-09-26

申请号：US13895215

申请日：2013-05-15

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Ke Liu ,  Tao Luo ,  Yongbin Wei

IPC: H04W24/02

CPC classification number: H04W24/02 ,  H03G1/02 ,  H04L5/0053 ,  H04L25/0202 ,  H04L27/2601 ,  H04W84/045

Abstract: Methods and apparatuses are provided that include selecting reference signal (RS) or other tones to utilize in estimating a channel for decoding one or more channels. Where the RS tones are interfered by other base stations, interference cancelation can be performed over the RS tones. Since interference can vary over the tones, interference cancelation can yield RS tones of varying quality. Thus, a quality of each of the RS tones can be determined, and at least a subset of the RS tones can be selected for estimating a channel. Additionally or alternatively, the RS tones can be weighted or otherwise classified for performing channel estimation using the RS tones.

Abstract translation: 提供了包括选择参考信号（RS）或其他音调以用于估计用于解码一个或多个信道的信道的方法和装置。 在RS音调被其他基站干扰的情况下，可以通过RS音调进行干扰消除。 由于干扰可以在音调上变化，所以干扰消除可以产生质量不同的RS音调。 因此，可以确定每个RS音调的质量，并且可以选择RS音调的至少一个子集来估计频道。 附加地或替代地，可以对RS音调进行加权或分类，以便使用RS音调进行信道估计。

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：US20130107823A1

公开(公告)日：2013-05-02

申请号：US13662207

申请日：2012-10-26

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Jelena M. Damnjanovic ,  Yongbin Wei

IPC: H04W52/16

CPC classification number: H04W52/16 ,  H04L5/0048 ,  H04W52/143 ,  H04W52/243 ,  H04W52/244 ,  H04W52/34 ,  H04W72/0453 ,  H04W72/085

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in connection with specifying a traffic-to-pilot (T/P) ratio per subframe and/or resource block to allow a base station to transmit over the subframes and/or resource blocks using varying transmit powers. In one example, a device communicating with the base station can receive a plurality of T/P ratios each related to a power used by the base station to transmit over one of a plurality of carriers in a specific subframe or resource block, determine a power of a reference signal received from the base station over a carrier of the plurality of carriers, and process a data signal received over the carrier within the specific subframe or resource block based in part on applying, to the power of the reference signal, a T/P ratio of the plurality of T/P ratios corresponding to the carrier.

Abstract translation: 提供一种用于无线通信的方法，装置和计算机程序产品，用于指定每个子帧和/或资源块的业务导向（T / P）比率，以允许基站通过子帧和 /或使用变化的发射功率的资源块。 在一个示例中，与基站通信的设备可以接收多个T / P比，每个T / P比与基站使用的功率相关，以在特定子帧或资源块中的多个载波中的一个载波上传输，确定功率 通过多个载波的载波从基站接收到的参考信号，并且部分地基于对参考信号的功率应用T处理在特定子帧或资源块内通过载波接收的数据信号 / P比对应于载波。

公开(公告)号：US12113653B2

公开(公告)日：2024-10-08

申请号：US18467478

申请日：2023-09-14

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Srinivas Yerramalli ,  Xiaoxia Zhang ,  Tamer Kadous ,  Yongbin Wei ,  Jing Sun ,  Andrei Dragos Radulescu

IPC: H04B1/7136 ,  H04B1/7143 ,  H04B1/7156 ,  H04L27/26

CPC classification number: H04L27/2602 ,  H04B1/7136 ,  H04B1/7143 ,  H04B1/7156 ,  H04L27/2646 ,  H04B2001/71365 ,  H04B2001/71563

Abstract: Techniques providing opportunistic frequency switching for frame based equipment (FBE), such as may be configured to minimize opportunistic frequency switching delay in FBE new radio (NR) unlicensed (NR-U) networks and/or to provide frequency diversity FBE access based on offset sequences of medium sensing occasions for the carrier frequencies are disclosed. Within the FBE mode network, a base station may configure a pattern of sensing locations in each frame for each frequency transmission unit of the plurality of frequency transmission units, wherein an inter-unit delay of sensing locations between a first frequency transmission unit and a next adjacent frequency transmission unit and between a last frequency transmission unit and the first frequency transmission unit is a fixed duration. Opportunistic frequency switching of embodiments may utilize the medium sensing locations for opportunistically switching between a sequence of the frequency transmission units for implementing frequency diversity FBE access.

公开(公告)号：US11962525B2

公开(公告)日：2024-04-16

申请号：US17099181

申请日：2020-11-16

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Shimman Arvind Patel ,  Yongbin Wei ,  Aleksandar Damnjanovic ,  Hao Xu

IPC: H04L5/00 ,  H04W72/00 ,  H04W24/08 ,  H04W88/02

CPC classification number: H04L5/0048 ,  H04L5/0053 ,  H04W24/08 ,  H04W72/00 ,  H04W88/02

Abstract: Control information may be transmitted for different TTI lengths. Different control information for the different TTIs may be transmitted using control channel resources that are established for communication of control information, such as a physical downlink control channel (PDCCH), for example. Control information for a first TTI may be located in a first set of resources, and control information for a second TTI may be located in a second set of resources. The first set of resources may be located within a first search space that may be searched by a user equipment (UE) to identify the first control information. The second set of resources may be located within a second search space that may be searched by the UE to identify the second control information.

公开(公告)号：US11825515B2

公开(公告)日：2023-11-21

申请号：US17454023

申请日：2021-11-08

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Aleksandar Damnjanovic ,  Xiaoxia Zhang ,  Jing Sun ,  Yongbin Wei ,  Tamer Kadous

IPC: H04W74/00 ,  H04L5/00 ,  H04W16/14 ,  H04W72/0446 ,  H04W72/27

CPC classification number: H04W74/008 ,  H04L5/0032 ,  H04W16/14 ,  H04W72/0446 ,  H04W72/27

Abstract: Coordination of listen before talk (LBT) structure in new radio (NR) unlicensed (NR-U) multi-channel access operations is disclosed. In one aspect, when a base station determines to access shared communication spectrum, it may transmit an LBT structure signal that identifies the current LBT structure. The base station would then attempt access to the shared spectrum according to the LBT structure. In another aspect, a coordination server is used to manage access to the shared spectrum. Each node desiring access registers with the coordination server, which provides access parameters for the accessing node to use that increases the likelihood of successful access. The accessing nodes will transmit the selected access configuration used to access the shared spectrum, wherein the access configuration is selected based on the access parameters.

公开(公告)号：US11751242B2

公开(公告)日：2023-09-05

申请号：US16559252

申请日：2019-09-03

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Aleksandar Damnjanovic ,  Jing Sun ,  Yongbin Wei ,  Tamer Kadous

IPC: H04W74/08 ,  H04W16/14 ,  H04W24/08 ,  H04W72/23

CPC classification number: H04W74/0808 ,  H04W16/14 ,  H04W24/08 ,  H04W72/23

Abstract: New radio (NR) unlicensed (NR-U) multi-channel access is disclosed for low-radio frequency (RF)-capable user equipment (UE). A base station may enable multi-channel access when single operator operations cannot be guaranteed within a shared communication spectrum. The primary and secondary channels are defined within the shared communication channel. The base station may then transmit a configuration message to one or more low-RF UEs that identifies the charnels and directs the UEs to monitor the primary channel for a successful listen before talk (LBT) indicator. The base station performs an LBT procedure on the primary channel and the secondary channel and signals the low-RF UEs to re-tune to the secondary channel for communication during a current transmission opportunity.

公开(公告)号：US11743872B2

公开(公告)日：2023-08-29

申请号：US17392230

申请日：2021-08-02

Applicant: QUALCOMM Incorporated

Inventor： Seyed Ali Akbar Fakoorian ,  Alberto Rico Alvarino ,  Peter Gaal ,  Wanshi Chen ,  Yongbin Wei ,  Juan Montojo ,  Renqiu Wang ,  Hao Xu ,  Xiaofeng Wang

IPC: H04W72/0446 ,  H04L5/00 ,  H04L27/20

CPC classification number: H04W72/0446 ,  H04L5/0046 ,  H04L5/0048 ,  H04L27/2078

Abstract: Aspects of the present disclosure provide techniques for uplink (UL) data channel design. An example method is provided for operations which may be performed by a first apparatus. The example method generally comprises determining a number of pilot symbols to transmit for one or more slots of a first subframe based, at least in part, on a coverage enhancement (CE) level, and transmitting at least one uplink data channel having the determined number of pilot symbols in the one or more slots of the first subframe.

公开(公告)号：US11700090B2

公开(公告)日：2023-07-11

申请号：US17303660

申请日：2021-06-03

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Srinivas Yerramalli ,  Tamer Kadous ,  Yongbin Wei

IPC: H04L5/00 ,  H04W16/14 ,  H04W74/08 ,  H04W74/00 ,  H04W48/08 ,  H04W72/23

CPC classification number: H04L5/0012 ,  H04L5/0094 ,  H04W16/14 ,  H04W48/08 ,  H04W72/23 ,  H04W74/006 ,  H04W74/0808

Abstract: Wireless communications systems and methods related to providing frequency diversity for communications in an unlicensed spectrum are provided. A first wireless communication device communicates, with a second wireless communication device, an opportunistic frequency-switching configuration for a first frequency band and a second frequency band. The first frequency band and the second frequency band are shared by a first network operating entity and a second network operating entity. The first wireless communication device communicates, with the second wireless communication device, a first communication signal in a first frequency band based on the opportunistic frequency-switching configuration. The first wireless communication device switches from the first frequency band to a second frequency band based on the opportunistic frequency-switching configuration. The first wireless communication device communicates, with the second wireless communication device after the switching, a second communication signal in the second frequency band based on the opportunistic frequency-switching configuration.

公开(公告)号：US11653386B2

公开(公告)日：2023-05-16

申请号：US17012250

申请日：2020-09-04

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Aleksandar Damnjanovic ,  Xiaoxia Zhang ,  Jing Sun ,  Chih-Hao Liu ,  Yongbin Wei

IPC: H04W74/08 ,  H04W74/00 ,  H04W16/14

CPC classification number: H04W74/0816 ,  H04W16/14 ,  H04W74/006

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment may monitor for a transmission over a set of periodically scheduled resources (e.g., semi-persistently scheduled resources)) of a downlink shared channel in an unlicensed spectrum. The user equipment may receive the transmission, where the transmission indicates a channel access configuration (e.g., a listen-before-talk configuration) for accessing the unlicensed spectrum. In some cases, the transmission may include a medium access control (MAC) control element (MAC-CE) that indicates the channel access configuration. The transmission may additionally indicate at least one uplink channel over which the user equipment may transmit a message and/or a channel occupancy time associated with a successful acquisition of the unlicensed spectrum by the base station. The user equipment may transmit a message (e.g., an acknowledgement) based on the channel access configuration.