公开(公告)号：US10278180B2

公开(公告)日：2019-04-30

申请号：US15387970

申请日：2016-12-22

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Peter Gaal ,  Xiaofeng Wang ,  Wanshi Chen ,  Seyed Ali Akbar Fakoorian ,  Hao Xu ,  Renqiu Wang ,  Jing Lei

IPC: H04L5/00 ,  H04W4/70 ,  H04W72/04 ,  H04W72/08 ,  H04W88/02 ,  H04W88/08

Abstract: Aspects of the present disclosure provide techniques for design of channel raster for narrowband operation. One example method, performed by a base station, generally includes determining, based on one or more conditions, an exact frequency location of one channel of one or more channels to perform narrowband communications with a user equipment. The method also includes transmitting an indication of the one or more conditions to the user equipment. The method further includes communicating with the UE, based at least in part on the exact frequency location of the one channel.

公开(公告)号：US20190045498A1

公开(公告)日：2019-02-07

申请号：US16045535

申请日：2018-07-25

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Wanshi Chen ,  Juan Montojo ,  Peter Gaal ,  Tao Luo ,  Renqiu Wang ,  Seyong Park

IPC: H04W72/04 ,  H04W72/08

Abstract: Methods, systems, and devices are described for wireless communications. A wireless device may receive an allocation of uplink resources for an uplink transmission of uplink control information (UCI) during a long physical uplink control channel (PUCCH), which may range from four to fourteen symbol periods in length. The wireless device may identify a frequency hopping location based on the length of the PUCCH and a number of bits used to represent the UCI. In some cases, the frequency hopping location partitions the long PUCCH into a first set of symbol periods and a second set of symbol periods. After identifying the frequency hopping location, the wireless device may transmit a UCI message, which may include information and reference symbols, over a first frequency bandwidth during the first set of symbol periods and over a second frequency bandwidth during the second set of symbol periods.

公开(公告)号：US20190045420A1

公开(公告)日：2019-02-07

申请号：US16154349

申请日：2018-10-08

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Madhavan Srinivasan Vajapeyam ,  Hao Xu ,  Wanshi Chen ,  Peter Gaal

IPC: H04W36/36 ,  H04W48/20 ,  H04H20/38 ,  H04L5/00 ,  H04W36/00 ,  H04W72/04 ,  H04W72/08 ,  H04W4/70

Abstract: Cell selection techniques are provided for network access to cells that may employ one or more coverage enhancement techniques. A user equipment (UE), which may be a machine type communication (MTC) device, upon initial acquisition or upon wakeup may measure a reference signal received power (RSRP), reference signal received quality (RSRQ), or both, and determine a cell selection value based at least in part on the RSRP, RSRQ, or a combination thereof. The cell selection value may be determined based on an offset, which may be selected based on a measurement accuracy capability of the UE. UE sequential access attempts, neighbor cell list information that may include coverage enhancement of neighboring cells transmissions, and cell re-selection measurement frequency adjustments are also described.

公开(公告)号：US20180367284A1

公开(公告)日：2018-12-20

申请号：US15980571

申请日：2018-05-15

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Xiaoxia Zhang ,  Renqiu Wang ,  Hao Xu ,  Peter Gaal ,  Seyong Park ,  Sony Akkarakaran

IPC: H04L5/00 ,  H04L1/16 ,  H04L27/26

CPC classification number: H04L5/0055 ,  H04L1/1614 ,  H04L1/1664 ,  H04L1/1671 ,  H04L5/0051 ,  H04L27/2613 ,  H04W72/0413

Abstract: Techniques described herein assist with indicating whether ACK/NACK signaling is present in an uplink transmission, thereby enhancing performance by permitting use of rate matching while reducing decoding errors. For example, a user equipment may determine whether ACK/NACK signaling is to be included in an uplink transmission in a portion of uplink resources allocated for a data channel, may generate a reference signal that indicates whether the ACK/NACK signaling is present in the uplink transmission, and may transmit the reference signal.

公开(公告)号：US10142074B2

公开(公告)日：2018-11-27

申请号：US15685778

申请日：2017-08-24

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Yi Huang ,  Wanshi Chen ,  Peter Gaal ,  Wei Zeng ,  Hao Xu

IPC: H04W4/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04W28/02

Abstract: Certain aspects of the present disclosure generally relate to wireless communications. In some aspects, a wireless communication device may configure a wireless communication structure to include at least a data portion and a common uplink portion, wherein the common uplink portion includes a first symbol and a second symbol, wherein the first symbol precedes the second symbol. The wireless communication device may map at least a portion of one or more reference signals or an uplink payload to at least one of the first symbol or the second symbol.

公开(公告)号：US20180324868A1

公开(公告)日：2018-11-08

申请号：US16019325

申请日：2018-06-26

Applicant: QUALCOMM Incorporated

Inventor： Peter Gaal ,  Renqiu Wang ,  Xiao Feng Wang ,  Hao Xu ,  Wanshi Chen

IPC: H04W74/08 ,  H04W72/04 ,  H04B1/7143 ,  H04W4/70 ,  H04B1/713 ,  H04W4/06

CPC classification number: H04W74/0833 ,  H04B1/713 ,  H04B1/7143 ,  H04W4/06 ,  H04W4/70 ,  H04W72/0453

Abstract: Methods, systems, and devices are described for wireless communication. Dedicated frequency resources of a physical random access channel (PRACH) may be designated for large and small frequency hops to facilitate the determination of timing offsets for PRACH transmissions. For instance, a frequency hopping pattern within the PRACH channel having a plurality of single tone transmission may include a first number of hops associated with a first frequency hopping distance (e.g., large frequency hops), and a second number of hops associated with a second frequency hopping distance (e.g., small frequency hops).

公开(公告)号：US10117152B2

公开(公告)日：2018-10-30

申请号：US15148818

申请日：2016-05-06

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Madhavan Srinivasan Vajapeyam ,  Hao Xu ,  Wanshi Chen ,  Peter Gaal

IPC: H04W36/36 ,  H04W4/70 ,  H04W48/20 ,  H04H20/38 ,  H04L5/00 ,  H04W4/00 ,  H04W36/00 ,  H04W72/04 ,  H04W72/08

Abstract: Cell selection techniques are provided for network access to cells that may employ one or more coverage enhancement techniques. A user equipment (UE), which may be a machine type communication (MTC) device, upon initial acquisition or upon wakeup may measure a reference signal received power (RSRP), reference signal received quality (RSRQ), or both, and determine a cell selection value based at least in part on the RSRP, RSRQ, or a combination thereof. The cell selection value may be determined based on an offset, which may be selected based on a measurement accuracy capability of the UE. UE sequential access attempts, neighbor cell list information that may include coverage enhancement of neighboring cells transmissions, and cell re-selection measurement frequency adjustments are also described.

公开(公告)号：US20180279348A1

公开(公告)日：2018-09-27

申请号：US15933239

申请日：2018-03-22

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Hao Xu ,  Wanshi Chen ,  Renqiu Wang ,  Joseph Binamira Soriaga ,  Peter Gaal ,  Seyong Park

IPC: H04W72/12 ,  H04W76/27 ,  H04W52/36 ,  H04W28/02 ,  H04W74/08 ,  H04W72/14

CPC classification number: H04W72/1284 ,  H04W28/0263 ,  H04W28/0278 ,  H04W52/365 ,  H04W72/1263 ,  H04W72/1268 ,  H04W72/1289 ,  H04W72/14 ,  H04W74/0833 ,  H04W76/27

Abstract: Aspects of the present disclosure provide for opportunistic uplink transmissions within a slot. In some examples, after scheduling all regular uplink transmissions within a current slot, a base station (e.g., gNB) may identify a set of unused uplink resources within the current slot and generate and transmit unused resource information identifying the set of unused resources to the user equipment (UE) within the cell served by the base station. If a particular UE is configured to operate in an opportunistic mode, the UE may utilize the unused resource information to generate and transmit an opportunistic uplink transmission within the set of unused uplink resources.

公开(公告)号：US20180279325A1

公开(公告)日：2018-09-27

申请号：US15906813

申请日：2018-02-27

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Renqiu Wang ,  Wanshi Chen ,  Hao Xu ,  Peter Gaal ,  Seyong Park

IPC: H04W72/12 ,  H04L5/14 ,  H04L12/24 ,  H04L12/26 ,  H04W24/08

CPC classification number: H04W72/12 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0094 ,  H04L5/14 ,  H04L5/1469 ,  H04L41/08 ,  H04L43/0858 ,  H04L43/10 ,  H04L43/16 ,  H04W24/08 ,  H04W72/1226

Abstract: Aspects of the present disclosure relate to wireless communication systems configured to provide user equipment (UE)-specific slot structures based on the individual propagation delay experienced by each UE. In some examples, the duration of uplink transmissions for a particular UE within a slot may be configured based on the propagation delay between the base station and that particular UE. For example, the duration of an uplink burst and/or an uplink traffic transmission may be configured based on the propagation delay. In addition, a downlink burst within a slot may be configured for a particular UE on the propagation delay experienced by that UE. Downlink traffic transmissions may further be configured for the cell based on the maximum propagation delay experienced by the UEs in the cell.

公开(公告)号：US20180205480A1

公开(公告)日：2018-07-19

申请号：US15871901

申请日：2018-01-15

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Renqiu Wang ,  Hao Xu ,  Wei Zeng ,  Peter Gaal ,  Yi Huang ,  Seyong Park

IPC: H04J11/00 ,  H04L5/00 ,  H04W72/04 ,  H04W72/08

CPC classification number: H04J11/005 ,  H04L5/0035 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0073 ,  H04L5/0091 ,  H04L5/1469 ,  H04W24/02 ,  H04W24/10 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/082

Abstract: Various reference signal (RS) designs and arrangements for interference coordination and management in wireless communication are disclosed. Reference signals may be included in uplink (UL) and downlink (DL) transmissions for facilitating data demodulation and other purposes, and the locations of the reference signals within any given slot may depend on various factors. In some aspects of this disclosure, reference signals included in UL and/or DL transmissions of neighboring cells may be aligned in time and/or frequency to improve interference control and coordination between devices operating in different cells.