公开(公告)号：US20190182002A1

公开(公告)日：2019-06-13

申请号：US16272407

申请日：2019-02-11

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Peter Gaal ,  Hao Xu ,  Wanshi Chen ,  Yongbin Wei ,  Xiao Feng Wang ,  Renqiu Wang ,  Seyed Ali Akbar Fakoorian ,  Madhavan Srinivasan Vajapeyam ,  Alberto Rico Alvarino ,  Juan Montojo

IPC: H04L5/00 ,  H04W56/00 ,  H04L27/26 ,  H04J11/00 ,  H04W72/04

Abstract: Aspects of the present disclosure provide techniques for design of synchronization signals for narrowband operation, which can be used for stand-alone/in-band/guard-band deployment. An example method is provided for operations which may be performed by a base station (BS). The example method generally includes generating a primary synchronization signal (PSS) utilizing a first code sequence and a cover code applied to the first code sequence over a first number of symbols within one or more subframes, generating a secondary synchronization signal (SSS) based on a second code sequence over a second number of symbols within one or more subframes, and transmitting the PSS and the SSS in the first and second subframes to a first type of a user equipment (UE) that communicates on one or more narrowband regions of wider system bandwidth.

公开(公告)号：US10320550B2

公开(公告)日：2019-06-11

申请号：US14456916

申请日：2014-08-11

Applicant: QUALCOMM Incorporated

Inventor： Alan Barbieri ,  Parag Arun Agashe ,  Aleksandar Damnjanovic ,  Tingfang Ji ,  Tao Luo ,  Madhavan Srinivasan Vajapeyam ,  Yongbin Wei ,  Hao Xu ,  Taesang Yoo

IPC: H04L5/00 ,  H04L1/00 ,  H04W24/08 ,  H04W24/00 ,  H04W28/16

Abstract: Techniques for estimating and reporting channel quality indicator (CQI) are disclosed. Neighboring base stations may cause strong interference to one another and may be allocated different resources, e.g., different subframes. A UE may observe different levels of interference on different resources. In an aspect, the UE may determine a CQI for resources allocated to a base station and having reduced or no interference from at least one interfering base station. In another aspect, the UE may determine multiple CQI for resources of different types and associated with different interference levels. For example, the UE may determine a first CQI based on at least one first subframe allocated to the base station and having reduced or no interference from the interfering base station(s). The UE may determine a second CQI based on at least one second subframe allocated to the interfering base station(s).

公开(公告)号：US10285174B2

公开(公告)日：2019-05-07

申请号：US15371885

申请日：2016-12-07

Applicant: QUALCOMM Incorporated

Inventor： Seyed Ali Akbar Fakoorian ,  Alberto Rico Alvarino ,  Peter Gaal ,  Wanshi Chen ,  Yongbin Wei ,  Juan Montojo ,  Renqiu Wang ,  Hao Xu ,  Xiaofeng Wang

IPC: H04W72/04 ,  H04L5/00 ,  H04L27/20

Abstract: Aspects of the present disclosure provide techniques for uplink (UL) data channel design. An example method is provided for operations which may be performed by a first apparatus. The example method generally comprises determining a number of pilot symbols to transmit for one or more slots of a first subframe based, at least in part, on a coverage enhancement (CE) level, and transmitting at least one uplink data channel having the determined number of pilot symbols in the one or more slots of the first subframe.

公开(公告)号：US10285144B2

公开(公告)日：2019-05-07

申请号：US15245498

申请日：2016-08-24

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Hao Xu ,  Peter Gaal ,  Xiaofeng Wang ,  Wanshi Chen ,  Yongbin Wei ,  Juan Montojo ,  Alberto Rico Alvarino

IPC: H04W56/00 ,  H04L5/00 ,  H04J13/00 ,  H04W16/32 ,  H04L27/26 ,  H04W88/08 ,  H04W88/12

Abstract: Aspects of the present disclosure provide techniques for design of synchronization signals for narrowband operation and other clean-slate, OFDM based systems such as enhanced component carrier (eCC) systems. An example method is provided for operations which may be performed by a BS to generate and transmit a dual-layer PSS, and correspondingly, techniques for a UE to detect the dual-layer PSS. The PSS may be generated utilizing a binary code cover and at least one sequence applied to a number of symbols within one or more subframes of a frame.

公开(公告)号：US10263737B2

公开(公告)日：2019-04-16

申请号：US15709374

申请日：2017-09-19

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Durga Prasad Malladi ,  Wanshi Chen ,  Yongbin Wei ,  Madhavan Srinivasan Vajapeyam ,  Tao Luo ,  Peter Gaal ,  Hao Xu

IPC: H04L5/00 ,  H04L5/14 ,  H04W72/04 ,  H04J11/00 ,  H04W56/00 ,  H04W74/08

Abstract: Techniques are described for wireless communication. A first method may include performing a clear channel assessment (CCA) on an unlicensed radio frequency spectrum band; transmitting an indication of a time division duplexing (TDD) configuration over the unlicensed radio frequency spectrum band when the CCA is successful; and transmitting downlink data over the unlicensed radio frequency spectrum band in accordance with the TDD configuration when the CCA is successful. A second method may include performing a CCA on an unlicensed radio frequency spectrum band; dynamically determining, based at least in part on at least one grant to a user equipment (UE), and for a period following the CCA, a number of uplink subframes for communication over the unlicensed radio frequency spectrum band; and transmitting downlink data over the unlicensed radio frequency spectrum band in accordance with the timing of the number of uplink subframes when the CCA is successful.

公开(公告)号：US20190075591A1

公开(公告)日：2019-03-07

申请号：US16160949

申请日：2018-10-15

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Tao Luo ,  Yongbin Wei ,  Durga Prasad Malladi ,  Siddhartha Mallik ,  Xiaoxia Zhang ,  Hao Xu

IPC: H04W74/00 ,  H04W72/12 ,  H04J11/00 ,  H04W72/08

Abstract: Techniques are described for wireless communication. A first method includes receiving downlink control information for a first UE based at least in part on a group identifier associated with a NOMA group including the first UE and at least a second UE; and receiving a set of NOMA downlink transmissions at the first UE based at least in part on the downlink control information for the first UE. A second method includes receiving downlink control information for a first UE, the downlink control information for the first UE including an indication of at least a second UE; receiving downlink control information for the second UE based at least in part on the indication of at least the second UE; and receiving a set of NOMA downlink transmissions at the first UE based at least in part on the downlink control information for the first UE and the downlink control information for the second UE.

公开(公告)号：US10201016B2

公开(公告)日：2019-02-05

申请号：US15044717

申请日：2016-02-16

Applicant: QUALCOMM Incorporated

Inventor： Onkar Jayant Dabeer ,  Aleksandar Damnjanovic ,  Madhavan Srinivasan Vajapeyam ,  Xiaoxia Zhang ,  Shimman Arvind Patel ,  Wanshi Chen ,  Yongbin Wei

IPC: H04W74/08 ,  H04W16/14

Abstract: Techniques are described for wireless communication. One method includes winning a contention for access to an unlicensed radio frequency spectrum band, transmitting a request message upon winning the contention for access to the unlicensed radio frequency spectrum band, and receiving a response message over the unlicensed radio frequency spectrum band. The request message is transmitted by a user equipment (UE) on an enhanced physical random access channel (ePRACH) or shortened ePRACH (SePRACH), to access a cell that operates in the unlicensed radio frequency spectrum band. The response message is received in response to transmitting the request message, and the request message may be transmitted irrespective of whether a base station has gained access to the unlicensed radio frequency spectrum band.

公开(公告)号：US10194466B2

公开(公告)日：2019-01-29

申请号：US14518715

申请日：2014-10-20

Applicant: QUALCOMM Incorporated

Inventor： Peter Gaal ,  Naga Bhushan ,  Srinivas Yerramalli ,  Wanshi Chen ,  Aleksandar Damnjanovic ,  Tingfang Ji ,  Tao Luo ,  Durga Prasad Malladi ,  Yongbin Wei

IPC: H04W74/04 ,  H04W72/04 ,  H04W16/14 ,  H04W74/08

Abstract: Management of shared transmission resources is disclosed for multiple radio access networks (RANs) sharing access to a finite number of transmission slots. Multiple permutations of slot assignments are configured in which each competing network is assigned a specific slot in each permutation. The sequence of permutations provides a fair distribution of spectrum access by the competing networks, such that in each permutation of the permutation sequence, networks assigned to lower priority slots may be assigned to higher priority slots in later permutations.

公开(公告)号：US10149293B2

公开(公告)日：2018-12-04

申请号：US14861693

申请日：2015-09-22

Applicant: QUALCOMM Incorporated

Inventor： Jelena Damnjanovic ,  Aleksandar Damnjanovic ,  Taesang Yoo ,  Siddhartha Mallik ,  Madhavan Srinivasan Vajapeyam ,  Durga Prasad Malladi ,  Yongbin Wei

IPC: H04W72/04 ,  H04L5/00 ,  H04W76/27 ,  H04W72/08 ,  H04W72/14 ,  H04W88/08

Abstract: Techniques are described for preempting resource allocations to one or more UEs in the event that delay sensitive data is received. A resource allocation of a number of symbols may be granted to a first user equipment (UE) for first associated data to be transmitted. Subsequently, data may be received for a second UE that is more delay sensitive than the first data. The resource allocation to the first UE may be preempted, and resources allocated to the second UE for the second data within a variable length transmission time interval (TTI) of the resource allocation to the first UE. UEs may monitor for preemption during transmissions to other UEs in order to receive new resource grants associated with the preempted resource grant. Whether a UE monitors transmissions for preemption may be determined based on a quality or service (QoS) of the UE.

公开(公告)号：US10143005B2

公开(公告)日：2018-11-27

申请号：US14874160

申请日：2015-10-02

Applicant: QUALCOMM Incorporated

Inventor： Arumugam Chendamarai Kannan ,  Taesang Yoo ,  Siddhartha Mallik ,  Jelena Damnjanovic ,  Yongbin Wei ,  Durga Prasad Malladi

IPC: H04W72/12 ,  H04L5/14 ,  H04L12/807 ,  H04W28/20 ,  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.