公开(公告)号：US20140293971A1

公开(公告)日：2014-10-02

申请号：US14227279

申请日：2014-03-27

Applicant: QUALCOMM INCORPORATED

Inventor： Taesang YOO ,  Tao LUO ,  Wanshi CHEN ,  Hao XU ,  Yongbin WEI ,  Peter GAAL ,  Durga Prasad MALLADI

IPC: H04W56/00 ,  H04W72/08

CPC classification number: H04W56/003 ,  H04W72/042 ,  H04W72/1226

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for employing a neighboring cell's assistance information for interference mitigation (e.g., by conveying the information to a user equipment). A base station (BS) may determine assistance information for a neighboring cell and convey it to a user equipment (UE). A UE may receive assistance information for a neighboring cell and use that information for performing interference cancellation or suppression on received signals. The UE may receive the assistance information from a serving cell or a non-serving cell. The assistance information may be valid for a particular transmission instance, for a known period of time, or until updated by a BS.

Abstract translation: 本公开的某些方面涉及用于使用相邻小区的辅助信息用于干扰减轻的方法和装置（例如，通过将信息传送给用户设备）。 基站（BS）可以确定相邻小区的辅助信息并将其传送给用户设备（UE）。 UE可以接收相邻小区的辅助信息，并使用该信息来对接收的信号执行干扰消除或抑制。 UE可以从服务小区或非服务小区接收辅助信息。 辅助信息对于特定的传输实例可以在已知的时间段内有效，或直到由BS更新。

公开(公告)号：US20190199786A1

公开(公告)日：2019-06-27

申请号：US16290415

申请日：2019-03-01

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha MALLIK ,  Ravi PALANKI ,  Durga Prasad MALLADI ,  Naga BHUSHAN

IPC: H04L29/08 ,  H04W8/00

CPC classification number: H04L67/104 ,  H04L67/1063 ,  H04L67/1068 ,  H04W8/005

Abstract: Techniques for performing peer discovery in a wireless network are described. A device may perform peer discovery to detect and identify other devices of interest. In an aspect, the device may perform peer discovery based on a hybrid mode that includes autonomous peer discovery and network-assisted peer discovery. In another aspect, the device may perform peer discovery based on a push mode and a pull mode. For the push mode, the device may occasionally transmit and/or receive a peer detection signal. For the pull mode, the device may transmit and/or receive a peer discovery request when triggered. In yet another aspect, the device may perform event-triggered peer discovery (e.g., for the pull mode). In yet another aspect, the device may perform peer discovery using both a downlink spectrum and an uplink spectrum. In yet another aspect, the device may transmit a peer detection signal in a manner to improve detection and/or increase payload.

公开(公告)号：US20190098656A1

公开(公告)日：2019-03-28

申请号：US16201685

申请日：2018-11-27

Applicant: QUALCOMM Incorporated

Inventor： Arumugam CHENDAMARAI KANNAN ,  Taesang YOO ,  Siddhartha MALLIK ,  Jelena DAMNJANOVIC ,  Yongbin WEI ,  Durga Prasad MALLADI

IPC: H04W72/12 ,  H04L12/807 ,  H04W28/20 ,  H04L5/14 ,  H04W72/04 ,  H04W88/02

Abstract: Methods and apparatuses for managing uplink scheduling for one or more user equipment served by a network entity in a wireless communications system are presented. For instance, an example method is presented that includes generating, by the network entity, an uplink bandwidth allocation map, the uplink bandwidth allocation map defining an uplink bandwidth allocation for at least one of the one or more user equipment for at least one of a plurality of uplink transmission window lengths. In addition, the example method includes transmitting the uplink bandwidth allocation map to at least one of the one or more user equipment.

公开(公告)号：US20180263042A1

公开(公告)日：2018-09-13

申请号：US15975680

申请日：2018-05-09

Applicant: QUALCOMM Incorporated

Inventor： Juan MONTOJO ,  Durga Prasad MALLADI ,  Brian BANISTER ,  Alexei GOROKHOV

IPC: H04W72/10 ,  H04W28/26 ,  H04W16/14 ,  H04W72/04

CPC classification number: H04W72/10 ,  H04W16/14 ,  H04W28/26 ,  H04W72/0446

Abstract: Aspects of the disclosure relate to wireless communication systems configured to utilize a shared spectrum between two or more network operators. Coexistence between the different network operators on the shared spectrum may be provided by reserving resources for exclusive use by each of the network operators within a period of time that is variable based on the number of network operators. Non-exclusive use of resources may further be granted to one or more network operators in accordance with network operator priorities.

公开(公告)号：US20180234830A1

公开(公告)日：2018-08-16

申请号：US15951126

申请日：2018-04-11

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Siddhartha MALLIK ,  Ravi PALANKI ,  Naga BHUSHAN ,  Tao LUO ,  Durga Prasad MALLADI

IPC: H04W8/00 ,  H04W56/00 ,  H04W72/04 ,  H04L29/08 ,  H04W4/02 ,  H04L5/00 ,  H04W72/00 ,  H04W92/18 ,  H04W76/10

CPC classification number: H04W8/005 ,  H04L5/0053 ,  H04L67/104 ,  H04W56/002 ,  H04W56/0025 ,  H04W72/00 ,  H04W72/0453 ,  H04W76/10 ,  H04W92/18

Abstract: Techniques for performing peer discovery to enable peer-to-peer (P2P) communication are disclosed. In an aspect, a proximity detection signal used for peer discovery may be generated based on one or more physical channels and/or signals used in a wireless network. In one design, a user equipment (UE) may generate a proximity detection signal occupying at least one resource block based on a SC-FDMA modulation technique. In another design, the UE may generate a proximity detection signal occupying at least one resource block based on an OFDMA modulation technique. The UE may generate SC-FDMA symbols or OFDMA symbols in different manners for different physical channels. In yet another design, the UE may generate a proximity detection signal including a primary synchronization signal and a secondary synchronization signal. For all designs, the UE may transmit the proximity detection signal to indicate its presence and to enable other UEs to detect the UE.

公开(公告)号：US20180063868A1

公开(公告)日：2018-03-01

申请号：US15409496

申请日：2017-01-18

Applicant: QUALCOMM Incorporated

Inventor： Navid ABEDINI ,  Tao LUO ,  Sundar SUBRAMANIAN ,  Muhammad Nazmul ISLAM ,  Junyi LI ,  Ashwin SAMPATH ,  Juergen CEZANNE ,  Bilal SADIQ ,  Krishna Kiran MUKKAVILLI ,  Durga Prasad MALLADI ,  Ozge KOYMEN ,  Atul MAHARSHI

IPC: H04W74/08 ,  H04W72/04 ,  H04L12/26 ,  H04L5/00 ,  H04B17/24 ,  H04J1/02

CPC classification number: H04W74/0833 ,  H04B7/2041 ,  H04B17/24 ,  H04J1/02 ,  H04L5/0048 ,  H04L43/0894 ,  H04W72/042 ,  H04W72/0453

Abstract: In aspects, a user equipment may be configured to determine a preconfigured frequency band that is less than an available system bandwidth. The UE may be further configured to perform an initial access procedure with a base station using the preconfigured frequency band. The initial access procedure may include a random access channel (RACH) procedure.

公开(公告)号：US20180014251A1

公开(公告)日：2018-01-11

申请号：US15472506

申请日：2017-03-29

Applicant: QUALCOMM Incorporated

Inventor： Sharad SAMBHWANI ,  Hao XU ,  Durga Prasad MALLADI

IPC: H04W52/02 ,  H04W4/00 ,  H04L5/00

CPC classification number: H04W52/0212 ,  H04L5/0055 ,  H04W4/70 ,  H04W52/0216 ,  H04W52/0229 ,  H04W52/0235 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/20 ,  Y02D70/21 ,  Y02D70/24 ,  Y02D70/26

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus operates in a first power mode with a first DL bandwidth in association with one of a radio resource control (RRC) idle state or an RRC connected state with a base station. The apparatus transitions to a second power mode with a second DL bandwidth less than the first DL bandwidth. Additionally, the apparatus monitors a set of symbols and a set of subcarriers of the second DL bandwidth for an activity indicator from the base station. The apparatus transitions from the second power mode to the first power mode upon receiving the activity indicator from the base station. In an aspect, control information associated with a modulation scheme may be within the set of symbols and the set of subcarriers. The control information may correspond to a particular constellation point.

公开(公告)号：US20170163433A1

公开(公告)日：2017-06-08

申请号：US15439864

申请日：2017-02-22

Applicant: QUALCOMM Incorporated

Inventor： Tao LUO ,  Yongbin WEI ,  Peter GAAL ,  Hao XU ,  Taesang YOO ,  Siddhartha MALLIK ,  Makesh Pravin JOHN WILSON ,  Naga BHUSHAN ,  Durga Prasad MALLADI ,  Tingfang JI ,  Gavin Bernard HORN ,  Alexei Y. Gorokhov ,  Avneesh Agrawal

IPC: H04L12/18 ,  H04W72/08 ,  H04B7/0452 ,  H04B7/06 ,  H04W16/14 ,  H04L5/00

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE that acquires information regarding an interfering non-serving cell and uses the information to improve decoding of serving cell signals. The method includes receiving, from a serving evolved Node B (eNB), information that includes one or more transmission characteristics of at least one non-serving cell and performing at least one of interference cancellation, demodulation, or provides an improved channel quality indicator (CQI) based on the received information.

公开(公告)号：US20170078055A1

公开(公告)日：2017-03-16

申请号：US15362468

申请日：2016-11-28

Applicant: QUALCOMM Incorporated

Inventor： Durga Prasad MALLADI ,  Yongbin WEI

IPC: H04L5/00 ,  H04W72/08 ,  H04L5/14 ,  H04W72/04

CPC classification number: H04L5/0032 ,  H04B1/7097 ,  H04J11/0023 ,  H04J11/005 ,  H04J11/0059 ,  H04L5/14 ,  H04W72/0446 ,  H04W72/048 ,  H04W72/082

Abstract: Interference cancellation occurs for devices, where the source of the interference is another UE. The victim UE receiver identifies subframes vulnerable to potential interference from other UEs. Candidate resource blocks in the identified vulnerable subframes are listed. Interference is cancelled for edge resource blocks and valid contiguous resource blocks.

Abstract translation: 干扰消除发生在设备上，其中干扰源是另一个UE。 受害者UE接收机识别易受来自其他UE的潜在干扰的子帧。 列出所识别的弱势子帧中的候选资源块。 边缘资源块和有效连续资源块的干扰被取消。

公开(公告)号：US20160323896A1

公开(公告)日：2016-11-03

申请号：US15208560

申请日：2016-07-12

Applicant: QUALCOMM INCORPORATED

Inventor： Kapil BHATTAD ,  Dhananjay A. GORE ,  Durga Prasad MALLADI ,  Yongbin WEI ,  Peter GAAL

IPC: H04W72/08 ,  H04B17/345 ,  H04W72/04 ,  H04L5/14

CPC classification number: H04W72/082 ,  H04B17/345 ,  H04L1/0026 ,  H04L1/1829 ,  H04L5/14 ,  H04W36/0088 ,  H04W36/20 ,  H04W36/30 ,  H04W72/0413 ,  H04W84/042

Abstract: In wireless communication systems, a determination may be made whether to hand off a user equipment (UE) based on whether the UE encounters time varying interference, such as UE to UE interference. The time varying interference may be present only in a specific set of time/frequency resources or subframes. Measurement reporting may be restricted to time/frequency resources which do not experience the time varying interference.