公开(公告)号：US20180042030A1

公开(公告)日：2018-02-08

申请号：US15667201

申请日：2017-08-02

Applicant: QUALCOMM Incorporated

Inventor： Hao XU ,  Peter GAAL ,  Jing JIANG ,  Haitong SUN ,  Naga BHUSHAN ,  Tingfang JI ,  Wei ZENG ,  Shimman Arvind PATEL

IPC: H04W72/08 ,  H04L12/911 ,  H04W28/02 ,  H04L12/851

Abstract: Certain aspects of the present disclosure provide techniques for co-existence of reliable low-latency and other services in a wireless network. According to certain aspects, a method of wireless communication by a base station is provided. The method generally includes reserving a first region of a set of resources to a first user for at least a first uplink transmission related to a first type of service, receiving the first uplink transmission in the reserved first region, and dynamically assigning resources in a second region of the set of resources for at least a second uplink transmission related to the first type of service.

公开(公告)号：US20180020432A1

公开(公告)日：2018-01-18

申请号：US15618088

申请日：2017-06-08

Applicant: QUALCOMM Incorporated

Inventor： Alberto RICO ALVARINO ,  Wanshi CHEN ,  Hao XU ,  Peter GAAL ,  Juan MONTOJO

IPC: H04W72/04 ,  H04W74/08 ,  H04W8/22 ,  H04L29/08 ,  H04W4/00

Abstract: Aspects of the present disclosure provide techniques and apparatus for performing paging and/or random access procedures with multiple physical resource blocks (PRBs) for narrowband (NB) internet-of-things (IoT). In one aspect, a method is provided which may be performed by a base station. The method generally includes determining a first set of resources and a second set of resources available for narrowband communications with one or more first user equipments (UEs) and one or more second UEs. The method also includes allocating the first and second set of resources to one or more of the first UEs and the second UEs based at least in part on a type of the first UEs and a type of the second UEs. The method further includes signaling an indication of the allocation.

公开(公告)号：US20180020423A1

公开(公告)日：2018-01-18

申请号：US15646730

申请日：2017-07-11

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Wanshi CHEN ,  Hao XU ,  Alberto RICO ALVARINO ,  Peter GAAL

IPC: H04W64/00 ,  H04W4/00 ,  H04L5/00 ,  H04W74/00

CPC classification number: H04W64/00 ,  H04B17/318 ,  H04L5/0048 ,  H04L5/0053 ,  H04W4/70 ,  H04W74/004

Abstract: Certain aspects of the present disclosure generally relate to DL-based and UL-based positioning reference signal (PRS) techniques that may help facilitate positioning procedures in systems deploying narrowband devices, such as NB-IoT devices. An exemplary method includes determining resources within a narrowband region of a wider system bandwidth for transmitting a positioning reference signal (PRS), transmitting the PRS using the determined resources, and estimating a position of a wireless node based on at least one first measurement of a first reference signal and the PRS transmitted within a narrowband region.

公开(公告)号：US20170353222A1

公开(公告)日：2017-12-07

申请号：US15544370

申请日：2015-01-19

Applicant: QUALCOMM Incorporated

Inventor： Chao WEI ,  Wanshi CHEN ,  Peter GAAL ,  Yu ZHANG

IPC: H04B7/06 ,  H04B7/04 ,  H04L5/00 ,  H04W72/04 ,  H04W88/02

Abstract: Mechanisms for reduction of channel state information (CSI) feedback overhead are disclosed for full dimensional multiple input, multiple output (FD-MIMO) systems with large dimension antenna ports. In one aspect, rank-dependent CSI antenna port measurements are used in order to limit the number of antenna ports for high rank CSI reporting. Another aspect allows a user equipment (UE) to select subband feedback for aperiodic CSI porting on an uplink shared channel when the UE is to report subband quality and precoding indicators. Another aspect provides for on-demand CSI feedback that dynamically configures CSI feedback parameters. To reduce the signaling overhead, the multiple parameter sets may be pre-configured with different values for dynamic reporting parameters.

公开(公告)号：US20170339677A1

公开(公告)日：2017-11-23

申请号：US15497292

申请日：2017-04-26

Applicant: QUALCOMM Incorporated

Inventor： Alberto RICO ALVARINO ,  Hao XU ,  Peter GAAL ,  Wanshi CHEN ,  Renqiu WANG ,  Seyed Ali Akbar FAKOORIAN ,  Juan MONTOJO ,  Jing LEI ,  Yongbin WEI ,  Arthur MILLER

IPC: H04W72/04 ,  H04W76/06 ,  H04M1/725 ,  H04W36/08 ,  H04W16/02 ,  H04W74/00 ,  H04W76/02 ,  H04W84/04

CPC classification number: H04W72/042 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0091 ,  H04L5/0094 ,  H04M1/72511 ,  H04W4/70 ,  H04W16/02 ,  H04W36/08 ,  H04W52/0274 ,  H04W52/028 ,  H04W72/1289 ,  H04W74/006 ,  H04W76/15 ,  H04W76/28 ,  H04W76/36 ,  H04W84/042 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/20 ,  Y02D70/21 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/26

Abstract: Methods and apparatus for flexible bandwidth operation in a wireless communication network are provided. A User Equipment (UE) monitors a first set of resources for a first control channel in a first bandwidth region. In response, to detecting the first control channel, the UE monitors a second set of resources in a second bandwidth region for at least one of control information or data, the second bandwidth region larger than the first bandwidth region, wherein the monitoring the second set of resources for the control information includes monitoring the second set of resources for a second control channel for receiving the control information scheduling resources for receiving the data.

公开(公告)号：US20170339658A1

公开(公告)日：2017-11-23

申请号：US15493247

申请日：2017-04-21

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Hao XU ,  Wanshi CHEN ,  Xiao Feng WANG ,  Peter GAAL ,  Alberto RICO ALVARINO ,  Juan MONTOJO ,  Jing LEI ,  Seyed Ali Akbar FAKOORIAN

IPC: H04W64/00 ,  G01S5/02 ,  H04L5/00

CPC classification number: H04W64/00 ,  G01S5/021 ,  G01S5/0236 ,  H04L5/0048

Abstract: Certain aspects of the present disclosure generally relate to downlink (DL) based and uplink (UL) based positioning reference signal (PRS) techniques that may help facilitate positioning procedures in systems deploying narrowband devices, such as narrowband Internet of Things (NB-IoT) devices. An exemplary method that may be performed by a node includes monitoring for positioning reference signals (PRS) transmitted from one or more base stations within a narrowband region of a wider system bandwidth, wherein tones of the PRS are repeated across at least one of multiple symbols within a same subframe, or multiple consecutive subframes, and estimating timing from the one or more base stations based on the PRS.

公开(公告)号：US20170332440A1

公开(公告)日：2017-11-16

申请号：US15589989

申请日：2017-05-08

Applicant: QUALCOMM Incorporated

Inventor： Hao XU ,  Srinivas YERRAMALLI ,  Juan MONTOJO ,  Yongbin WEI ,  Peter GAAL ,  Wanshi CHEN ,  Alberto RICO ALVARINO

IPC: H04W84/18 ,  H04W84/10 ,  H04W28/02 ,  H04W16/16 ,  H04W4/00 ,  H04W92/18 ,  H04L29/08

CPC classification number: H04W84/18 ,  H04B1/713 ,  H04L1/0071 ,  H04L5/001 ,  H04L29/08306 ,  H04L67/104 ,  H04W4/70 ,  H04W16/16 ,  H04W28/021 ,  H04W84/10 ,  H04W92/18

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for wireless communication, and more particularly, to design principles for extending Internet of Things (IoT) (e.g., narrowband IoT (NB-IoT), machine type communication(s) (MTC), etc.) into an unlicensed radio frequency (RF) band spectrum. In certain aspects, the method generally includes determining an interlace structure of tones, within an unlicensed radio frequency (RF) spectrum, available to a wireless node for communication, and communicating based on the interlace structure. In some aspects, the communicating involves hopping between tones within the interlace structure during different communication intervals.

公开(公告)号：US20170331535A1

公开(公告)日：2017-11-16

申请号：US15531131

申请日：2015-01-19

Applicant: QUALCOMM Incorporated

Inventor： Chao WEI ,  Wanshi CHEN ,  Peter GAAL ,  Yu ZHANG

IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/17 ,  H04B7/26

Abstract: Enhanced channel state information (CSI) feedback is disclosed for full dimensional multiple input, multiple output (FD-MIMO) operations. In one aspect, a single CSI process is defined that is configured with an azimuth and elevation CSI-reference signal (RS) ports. A user equipment (UE) will send a precoding matrix indictor (PMI) report including a precoding matrix indicator (PMI) for the azimuth ports and a PMI for the elevation ports. One of the PMIs is assigned a low rank. The base station will use the two PMIs to create a whole channel precoding matrix. In another aspect, a single CSI process is configured having a plurality of CSI-RS resources. The UE generates channel measurement information for each of the CSI-RS resources, but only sets a CSI report to the base station of a subset of the total number of resources.

公开(公告)号：US20170311299A1

公开(公告)日：2017-10-26

申请号：US15631651

申请日：2017-06-23

Applicant: QUALCOMM Incorporated

Inventor： Wanshi CHEN ,  Stefan GEIRHOFER ,  Peter GAAL ,  Hao XU ,  Tao LUO

IPC: H04W72/04 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04B7/024 ,  H04B7/0626 ,  H04L1/0038 ,  H04L1/0067 ,  H04L1/1812 ,  H04L5/001 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0053 ,  H04L25/0204 ,  H04W72/044

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. In an aspect, the apparatus may configure at least a first resource set and a second resource set for a control channel. The first and second resource sets may be configured with a common reference signal configuration. The apparatus also configures first rate-matching parameters for the first resource set and second rate-matching parameters for the second resource set. Then, the apparatus transmits the first rate-matching parameters and the second rate-matching parameters and transmits the control channel using the first resource set and the second resource set.

公开(公告)号：US20170288848A1

公开(公告)日：2017-10-05

申请号：US15436047

申请日：2017-02-17

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Peter GAAL ,  Hao XU ,  Xiao feng WANG

IPC: H04L7/00 ,  H04L1/00 ,  H04W4/00

CPC classification number: H04L7/0054 ,  H04J11/0076 ,  H04J13/0062 ,  H04L1/0063 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/1469 ,  H04L27/2601 ,  H04L27/2613 ,  H04L27/2663 ,  H04W4/70

Abstract: In order to reduce ambiguity in NB-SSS and complexity of receiver processing, a transmitter apparatus generates an SSS, wherein the SSS signal comprises a sequence of OFDM symbols, wherein each symbol of the sequence of SSS symbols is mapped to a codeword symbol of an FEC code. Source symbols of the sequence of SSS symbols carry a PCID and frame timing information, and parity symbols of the sequence of SSS symbols introduce redundancy and coding gain. A receiver receives the NB-SSS over multiple OFDM symbols, each symbol of the SSS comprising a short ZC sequence with a combination of root index and cyclic shift. The apparatus derives path metrics using cross-correlation for each of the plurality of symbols, determines a candidate SSS source message based on the derived path metrics and coding constraints of FEC codewords, and identifies a PCID and timing information based on the candidate SSS source message.