公开(公告)号：US20180139648A1

公开(公告)日：2018-05-17

申请号：US15707607

申请日：2017-09-18

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Wanshi Chen ,  Hao Xu ,  Wei Zeng ,  Renqiu Wang ,  Peter Gaal ,  Tingfang Ji ,  John Edward Smee

IPC: H04W28/04 ,  H04W72/08 ,  H04L1/00

CPC classification number: H04W28/04 ,  H04B7/0452 ,  H04B7/0848 ,  H04J11/0023 ,  H04J2011/0096 ,  H04L1/0038 ,  H04L1/0045 ,  H04L5/0007 ,  H04L5/0035 ,  H04L5/0044 ,  H04L5/0092 ,  H04L25/0202 ,  H04L25/0204 ,  H04L25/0224 ,  H04W72/082

Abstract: Signaling strategies for an advanced receiver with interference cancellation (IC) and suppression is discussed. Upon enablement of an advanced interference cancellation procedure according to the disclosure, transmitters within the enabled area transmit according to transmission restriction configurations that provide transmission limits based on either frequency, time, or scheduling. The restrictions on the transmitters reduces the complexity of processing by neighboring advanced receivers for cancellation of interference from the restricted transmitters. At the advanced receiver, transmission information, such as scheduling, reference signal (RS), resource block (RB) allocation, and the like, may either be determined through blind detection or received directly through signaling. The advanced receiver may use this transmission information associated with each interfering signal to detect, decode, and subtract the interfering signals from the received transmissions.

公开(公告)号：US09961673B2

公开(公告)日：2018-05-01

申请号：US14916173

申请日：2013-11-01

Applicant: QUALCOMM Incorporated

Inventor： Chao Wei ,  Neng Wang ,  Peng Cheng ,  Wanshi Chen ,  Hao Xu ,  Peter Gaal ,  Jilei Hou

IPC: H04W72/04 ,  H04L1/00 ,  H04W72/02 ,  H04L1/18 ,  H04L5/22 ,  H04W72/14

CPC classification number: H04W72/0406 ,  H04L1/00 ,  H04L1/1812 ,  H04L1/1887 ,  H04L5/22 ,  H04W72/02 ,  H04W72/14

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives, by a user equipment (UE) during a first subframe, an indication of a dynamic uplink/downlink (UL/DL) subframe configuration. The apparatus determines an uplink hybrid automatic repeat request (HARQ) timing based on an uplink reference subframe configuration and at least one of the dynamic UL/DL subframe configuration or a downlink reference subframe configuration. The apparatus selects an uplink subframe for communication based on the determined uplink HARQ timing.

公开(公告)号：US20180110052A1

公开(公告)日：2018-04-19

申请号：US15837463

申请日：2017-12-11

Applicant: QUALCOMM Incorporated

Inventor： Yongbin Wei ,  Durga Prasad Malladi ,  Tao Luo ,  Srinivas Yerramalli ,  Aleksandar Damnjanovic ,  Hao Xu ,  Peter Gaal ,  Wanshi Chen

IPC: H04W72/04 ,  H04W74/08 ,  H04L27/26 ,  H04W72/12

CPC classification number: H04W72/0453 ,  H04L27/2601 ,  H04W72/0413 ,  H04W72/1268 ,  H04W74/0833

Abstract: Techniques for wireless communications over a shared radio frequency spectrum band, may include techniques for transmitting uplink data transmissions using allocated uplink resources. Allocated uplink resources may include an uplink channel comprising a number of allocated interlaces of resource blocks (RBs) for use by a user equipment (UE). An incoming data stream may be processed and data separated into each of the allocated interlaces of RBs for the UE. Such separation may be through demultiplexing the data stream to obtain data for the allocated interlaces of RBs. The demultiplexed data may be mapped onto associated resource elements associated with the allocated interlaces of RBs, and transmitted. Different types of uplink channels, such as a physical uplink control channel (PUCCH), physical uplink shared channel (PUSCH) and/or a physical random access channel (PRACH) may be allocated to interlaces of RBs in one or more subframes of a transmitted radio frame.

公开(公告)号：US09949257B2

公开(公告)日：2018-04-17

申请号：US14801434

申请日：2015-07-16

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Hao Xu ,  Peter Gaal

IPC: H04W24/08 ,  H04W72/04 ,  H04W72/00 ,  H04B17/00 ,  H04L5/00 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04W72/0446 ,  H04B17/0082 ,  H04L5/0053 ,  H04W24/08 ,  H04W72/005 ,  H04W72/0406 ,  H04W88/02 ,  H04W88/08

Abstract: Methods, systems, and devices are described for wireless communication within and for user equipment (UE), including lower-complexity devices, which may have intermittent communication needs, low data rates, hard-to-reach locations, and the like. Devices within a wireless communication system may utilize transmission time interval (TTI) bundling to identify and employ various encoding schemes according to particular channel, transmission, and/or environmental conditions. Devices may also monitor and/or decode control-based transmission, control-less transmission, or both. In some examples, devices may monitor various channels based on a TTI bundling length. Some or any of these techniques may allow for coverage enhancement of UEs, including low-complexity UEs.

公开(公告)号：US20180098293A1

公开(公告)日：2018-04-05

申请号：US15663610

申请日：2017-07-28

Applicant: QUALCOMM Incorporated

Inventor： Jing Jiang ,  Hao Xu ,  Wanshi Chen ,  June Namgoong ,  Yang Yang ,  Haitong Sun ,  Alexandros Manolakos ,  Tingfang Ji

IPC: H04W56/00 ,  H04L7/04 ,  H04L27/26

Abstract: Aspects of the disclosure relate to a coexistence of a first radio access technology (RAT), such as a fifth generation (5G) new radio (NR) technology with a second RAT, such as a narrow-band internet-of-things (NB-IOT) technology. In a first aspect, a 5G NR resource block size and an NB-IOT resource block size are defined, and a compatible alignment of an NB-IOT resource block and a 5G NR resource block is identified. An offset associated with the compatible alignment is then determined in which the offset is within a threshold offset and facilitates an identification of a valid NB-IOT resource block. In a second aspect, an offset associated with a compatible alignment of a 5G NR resource block and an NB-IOT resource block is ascertained, and a channel raster is shifted according to the offset associated with the compatible alignment.

公开(公告)号：US20180098287A1

公开(公告)日：2018-04-05

申请号：US15831251

申请日：2017-12-04

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Amir Aminzadeh Gohari ,  Alexei Yurievitch Gorokhov ,  Raghu Narayan Challa ,  Tingfang Ji ,  Krishna Kiran Mukkavilli ,  Ravi Agarwal ,  Joseph Binamira Soriaga ,  Hao Xu

IPC: H04W52/02 ,  H04W76/04 ,  H04W72/04 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04W52/0235 ,  H04W52/0216 ,  H04W52/0229 ,  H04W72/0406 ,  H04W76/28 ,  H04W88/02 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/12 ,  Y02D70/122 ,  Y02D70/1226 ,  Y02D70/1242 ,  Y02D70/126 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/20 ,  Y02D70/24 ,  Y02D70/26

Abstract: Systems and method of embodiments herein operate to conserve battery power of user equipment (UE). Embodiments determine whether waking up a UE receiver would be beneficial and based on the determination, the UE either wakes up the receiver or returns to sleep. Embodiments determine whether to wake up the receiver by performing pre-wake up (PWU) operation which either wakes up the receiver in a low power mode or wakes up the UE's wake up receiver. It may be determined whether a wake up (WU) signal is received during a PWU stage. If a WU signal is received during the PWU stage the UE may perform a full wake up of the receiver. If a WU signal is not received the UE may return to idle mode. In embodiments, WU (Wake Up) DRX cycles are supplemented with a Full DRX (Discontinuous Reception) cycle.

公开(公告)号：US09930539B2

公开(公告)日：2018-03-27

申请号：US14934733

申请日：2015-11-06

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Hao Xu

IPC: H04W16/26 ,  H04L5/00 ,  H04W72/00

CPC classification number: H04W16/26 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0069 ,  H04W72/00

Abstract: Methods, systems, and devices for wireless communication are described. A base station may select a repetition level for a physical broadcast channel (PBCH) based on system configuration parameters. A user equipment (UE) may identify the system configuration. For example, the UE may assume a system bandwidth, assume a control region size, and determine whether the cell is a time division duplexing (TDD) or frequency division duplexing (FDD) cell. The UE may then determine a PBCH configuration based on the system configuration. For example, the PBCH repetition level may depend on the system configuration, such as whether a TDD or FDD scheme is employed. The UE may then receive a PBCH transmission according to the PBCH configuration. If a different cell has a different system configuration, the UE may determine a different PBCH configuration and receive PBCH using a different repetition level and different resources.

公开(公告)号：US20180083818A1

公开(公告)日：2018-03-22

申请号：US15491337

申请日：2017-04-19

Applicant: QUALCOMM Incorporated

Inventor： Yi HUANG ,  Wanshi Chen ,  Hao Xu ,  Wei Zeng

IPC: H04L27/26 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04L27/2613 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0051 ,  H04L27/2611 ,  H04W72/0446

Abstract: A method and apparatus for demodulation reference signal (DMRS) communication are described. The method and apparatus include determining a DMRS pattern for at least two multiplexing schemes. In some aspects, the at least two multiplexing schemes may include orthogonal frequency-division multiplexing (OFDM) and single carrier frequency-division multiplexing (SC-FDM). Further, in some aspects, the DMRS pattern may correspond to a continuous tone pattern in each subframe transmitted in accordance with both SC-FDM and OFDM. Additionally, in some aspects, the DMRS pattern may correspond to a comb tone pattern in each subframe transmitted in accordance with both SC-FDM and OFDM. The method and apparatus further include transmitting a DMRS in accordance with at least one of the two multiplexing schemes and based on the DMRS pattern.

公开(公告)号：US09900849B2

公开(公告)日：2018-02-20

申请号：US13633667

申请日：2012-10-02

Applicant: QUALCOMM Incorporated

Inventor： Hao Xu ,  Juan Montojo ,  Tao Luo ,  Peter Gaal

IPC: H04W52/32 ,  H04W52/12 ,  H04W52/14

CPC classification number: H04W52/325 ,  H04W52/12 ,  H04W52/146

Abstract: Certain aspects of the present disclosure relate to techniques for power control and SRS multiplexing for coordinated multi-point (CoMP) transmission and reception in heterogeneous networks (HetNet). Multiple SRS processes are supported with different physical and/or virtual cell ID. Different power control offsets and processes are associated with the different SRS processes.

公开(公告)号：US20180048372A1

公开(公告)日：2018-02-15

申请号：US15667801

申请日：2017-08-03

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Wanshi Chen ,  Peter Gaal ,  Hao Xu

IPC: H04B7/06

CPC classification number: H04B7/0632 ,  H04B7/024 ,  H04B7/0639 ,  H04B7/0686 ,  H04L1/0026 ,  H04L5/003

Abstract: Multiple base stations or transmit points (TPs) may use single-user multiple-input multiple-output (SU-MIMO) layer-specific and codeword-specific communication configurations for non-coherent joint transmissions (NCJTs) to a user equipment (UE). Two TPs may be configured for NCJTs to the UE, and one or more of the TPs may transmit a set of communication configurations to the UE. The communication configurations may be transmitted in a single downlink control information (DCI) transmission that configures the UE to receive NCJTs as two codewords in a SU-MIMO transmission. The UE may receive the DCI, receive the multiple NCJTs, and demodulate/decode the NCJT transmissions as multiple codewords in a SU-MIMO transmission. In some cases, the two codewords may be received from two TPs. Alternatively, the two codewords may be received in two spatial layers transmitted from a single TP.