公开(公告)号：US20190342054A1

公开(公告)日：2019-11-07

申请号：US16517305

申请日：2019-07-19

Applicant: QUALCOMM Incorporated

Inventor： Seyong PARK ,  Jing SUN ,  Xiao Feng WANG ,  Hao XU ,  Tao LUO ,  Yi HUANG ,  Renqiu WANG

IPC: H04L5/00 ,  H04J3/00 ,  H04L27/26

Abstract: Aspects of the disclosure relate to methods and apparatus of time-domain multiplexing (TDM) for reference signals (RS) and data using a modified cyclic prefix. A reference signal (RS) and data are multiplexed either in a single symbol or in two time consecutive symbols that respectively including the RS and data. The cyclic prefix (CP) is added to the single symbol using a portion of the RS or to a first symbol of the two time consecutive symbols using a portion of the RS. The CP may be copied from the RS or the end of the symbol, but not the data, in a manner that affords a virtual Time Division Multiplexing (TDM) of the RS and data before discrete Fourier transform (DFT) spreading is performed in a transceiver to provide lower peak to average power ratios and no Inter-symbol interference.

公开(公告)号：US20190253172A1

公开(公告)日：2019-08-15

申请号：US16274307

申请日：2019-02-13

Applicant: QUALCOMM Incorporated

Inventor： Seyong PARK ,  Jing LEI ,  Renqiu WANG ,  Joseph Binamira SORIAGA ,  Naga BHUSHAN ,  Tingfang JI

IPC: H04J13/00 ,  H04J13/20 ,  H04J13/14 ,  H04J13/22 ,  H03M7/30

CPC classification number: H04J13/0044 ,  H03M7/3088 ,  H04J13/14 ,  H04J13/20 ,  H04J13/22

Abstract: Aspects of the present disclosure provide techniques for variable spreading factor codes for non-orthogonal multiple access (NOMA). In an exemplary method, a base station assigns, from a first codebook of N short code sequences of length K, a subset of the short code sequences to a number of user equipments (UEs); receives a signal including uplink data or control signals from two or more of the UEs, wherein a first uplink data or control signal is sent using a first subsequence of one of the assigned short code sequences, and a second uplink data or control signal is sent using a second subsequence of one of the assigned short code sequences or using one of the assigned short code sequences; and decodes each uplink data or control signal in the signal based on the assigned short code sequences and subsequences of the assigned the short code sequences.

公开(公告)号：US20190230690A1

公开(公告)日：2019-07-25

申请号：US16254398

申请日：2019-01-22

Applicant: QUALCOMM Incorporated

Inventor： Sony AKKARAKARAN ,  Tao LUO ,  Peter GAAL ,  Yi HUANG ,  Renqiu WANG ,  Wanshi CHEN

IPC: H04W72/12 ,  H04L5/00

Abstract: Aspects of the present disclosure provide mechanisms for utilizing a single uplink grant to transmit scheduling requests (SRs) for two or more logical channels. A base station may allocate a separate grant of uplink resources for each SR opportunity (e.g., each logical channel for which a user equipment (UE) may transmit a SR to the base station). When the allocated uplink resources are within the same time period, the UE may select a subset of the SR opportunities for which to transmit a SR and partition the subset into one or more groups of SR opportunities. The UE may then generate one or more SR bits representing the one or more groups of SR opportunities and transmit the one or more SR bits on the single uplink grant.

公开(公告)号：US20190215835A1

公开(公告)日：2019-07-11

申请号：US16356813

申请日：2019-03-18

Applicant: QUALCOMM Incorporated

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

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

CPC classification number: H04W72/0453 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0092 ,  H04W4/70 ,  H04W72/087 ,  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：US20190207724A1

公开(公告)日：2019-07-04

申请号：US16297401

申请日：2019-03-08

Applicant: QUALCOMM Incorporated

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

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

CPC classification number: H04L5/005 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0057 ,  H04L27/2613 ,  H04W28/0278 ,  H04W72/0413 ,  H04W72/0446

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：US20190110280A1

公开(公告)日：2019-04-11

申请号：US16215493

申请日：2018-12-10

Applicant: QUALCOMM Incorporated

Inventor： Sony AKKARAKARAN ,  Tao LUO ,  Wanshi CHEN ,  Hao XU ,  Peter GAAL ,  Yi HUANG ,  Renqiu WANG ,  Seyong PARK

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

Abstract: Aspects of the disclosure relate to wireless communication systems configured to provide techniques for strategically placing a sounding reference signal (SRS) within a slot to improve the decoding timeline. Aspects of the disclosure further relate to wireless communication systems configured to optimize the physical downlink control channel (PDCCH) search space within a slot to improve the decoding timeline. Features may also include placing the SRS near the end of the slot, such as after the uplink user data traffic and the corresponding uplink demodulation reference signal (DMRS). In addition, features may also include identifying the PDCCH search space within the slot based on at least a slot index of the slot. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20180376473A1

公开(公告)日：2018-12-27

申请号：US15985232

申请日：2018-05-21

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Yi HUANG ,  Peter GAAL ,  Juan MONTOJO ,  Tao LUO ,  Sony AKKARAKARAN ,  Seyong PARK

IPC: H04W72/04 ,  H04B1/713

Abstract: Certain aspects of the present disclosure relate to methods and apparatus relating to a long uplink burst channel design. In certain aspects, the method includes determining, based on a hopping pattern, a first set of frequency resources available for transmitting uplink control information (UCI) within a first portion of a transmission time interval (TTI) and a second set of frequency resources available for transmitting UCI within a second portion of the TTI. The method also includes transmitting the UCI using the determined first set of frequency resources and the second set of frequency resources.

公开(公告)号：US20180323892A1

公开(公告)日：2018-11-08

申请号：US15969245

申请日：2018-05-02

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Seyong PARK ,  Yi HUANG ,  Peter GAAL ,  Hao XU

IPC: H04J11/00 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04J11/00 ,  H04J2011/0009 ,  H04L1/00 ,  H04L5/001 ,  H04L5/0046 ,  H04L5/0051 ,  H04L5/0055 ,  H04L27/2604 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2615 ,  H04L27/2637

Abstract: Aspects of the disclosure relate to a new radio (NR) single symbol design in which reference signals and data tones are frequency division multiplexed (FDM). In a particular aspect of the disclosure, a different encoding sequence is assigned to each possible value of an information element (IE) such that a minimum distance between encoding sequences corresponding to any pair of possible values is maximized. A symbol corresponding to a particular value of the IE is then transmitted. Here, the symbol is configured according to a sequence selected from a set of sequences corresponding to the particular value of the IE, such that the symbol comprises a plurality of reference signals FDM with a plurality of FDM resource elements.

公开(公告)号：US20180262311A1

公开(公告)日：2018-09-13

申请号：US15917566

申请日：2018-03-09

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Jing JIANG ,  Hao XU ,  Chong LI

IPC: H04L5/00 ,  H04W72/14

CPC classification number: H04L5/0051 ,  H04L5/0044 ,  H04L5/0055 ,  H04L5/0096 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/1236 ,  H04W72/1242 ,  H04W72/1289 ,  H04W72/14

Abstract: In some circumstances, a URLLC may preempt resource. An apparatus may be configured to receive a set of resource blocks from a base station including at least one of eMBB data or URLLC data in a PDSCH. The apparatus may receive a URLLC indicator from the base station. The URLLC indicator may be received embedded within the URLLC data or received separate from the URLLC data within DCI of a PDCCH. The URLLC indicator indicates whether the set of resource blocks includes at least part of the URLLC data. The apparatus may determine, based on the URLLC indicator, whether the set of resource blocks includes the URLLC data and processing the set of resource blocks based on a result of determining whether the set of resource blocks includes the URLLC data.

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.