公开(公告)号：US20200077394A1

公开(公告)日：2020-03-05

申请号：US16678678

申请日：2019-11-08

Applicant: QUALCOMM Incorporated

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

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

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：US10582517B2

公开(公告)日：2020-03-03

申请号：US15975680

申请日：2018-05-09

Applicant: QUALCOMM Incorporated

Inventor： Juan Montojo ,  Durga Prasad Malladi ,  Brian Banister ,  Alexei Gorokhov

IPC: H04W16/04 ,  H04W72/10 ,  H04W16/14 ,  H04W28/26 ,  H04W72/04

Abstract: Aspects of the disclosure relate to wireless communication systems configured to utilize a shared spectrum between two or more network operators. Coexistence between the different network operators on the shared spectrum may be provided by reserving resources for exclusive use by each of the network operators within a period of time that is variable based on the number of network operators. Non-exclusive use of resources may further be granted to one or more network operators in accordance with network operator priorities.

公开(公告)号：US20200022180A1

公开(公告)日：2020-01-16

申请号：US16579453

申请日：2019-09-23

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/00 ,  H04W74/08 ,  H04L27/26 ,  H04L5/00 ,  H04L5/14 ,  H04W56/00

Abstract: Techniques are described for wireless communication. A first method includes transmitting a first signal to indicate accessing a first channel in a radio frequency spectrum band, and transmitting information with the first signal in the radio frequency spectrum band. A second method includes winning contention to access a radio frequency spectrum band, and after the winning contention to access the radio frequency spectrum band, transmitting a first signal to align a starting point of a second signal with a reference boundary associated with the radio frequency spectrum band. A third method includes winning contention to access a radio frequency spectrum band during a first frame period, the first frame selected from a plurality of different frame periods, and transmitting a signal at a periodicity during one or more subframes of the first frame period for each of the plurality of different frame periods.

公开(公告)号：US20200008165A1

公开(公告)日：2020-01-02

申请号：US16535723

申请日：2019-08-08

Applicant: QUALCOMM Incorporated

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

IPC: H04W56/00 ,  H04J1/16 ,  H04J3/14 ,  H04J3/16 ,  H04L5/00 ,  H04L5/06 ,  H04W72/04 ,  H01Q5/25

Abstract: Methods, systems, and devices are described for low latency communications within a wireless communications system. An eNB and/or a UE may be configured to operate within the wireless communications system and may send triggers to initiate communications using a dedicated resource in a wireless communications network that supports transmissions having a first subframe type and a second subframe type, the first subframe type comprising symbols of a first duration and the second subframe type comprising symbols of a second duration that is shorter than the first duration. Communications may be initiated by transmitting a trigger from the UE or eNB using the dedicated resource, and initiating communications following the trigger. The duration of time between the trigger and initiating communications can be significantly shorter than the time to initiate communications using legacy LTE communications.

公开(公告)号：US20190394772A1

公开(公告)日：2019-12-26

申请号：US16449826

申请日：2019-06-24

Applicant: QUALCOMM Incorporated

Inventor： Chih-Ping Li ,  Jing Jiang ,  Wanshi Chen ,  Heechoon Lee ,  Durga Prasad Malladi

IPC: H04W72/04 ,  H04W76/27 ,  H04W72/06

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive multiple physical downlink control channels (PDCCHs) in one or more slots along with data traffic, where one of the PDCCHs includes a downlink preemption indication (DLPI) signifying that a portion of the data traffic was preempted. In some cases, the UE may monitor, within a same slot, for both the data traffic and an additional PDCCH carrying the DLPI and then transmit, within the same slot, a feedback message based on attempting to decode the data traffic, taking into account the DLPI. Additionally, the UE may receive the data traffic via a first service, where the DLPI indicates a second service preempts the first service. In some cases, the DLPI may be transmitted based on the UE being capable of processing the data traffic and transmitting the feedback message within the same slot.

公开(公告)号：US10448405B2

公开(公告)日：2019-10-15

申请号：US15064325

申请日：2016-03-08

Applicant: QUALCOMM Incorporated

Inventor： Shimman Arvind Patel ,  Wanshi Chen ,  Durga Prasad Malladi ,  Peter Gaal ,  Hao Xu ,  Michael Mao Wang

IPC: H04W72/04 ,  H04L27/34 ,  H04L5/00 ,  H04L27/26

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for mitigating resource conflicts between ultra low latency (ULL) and legacy transmissions. A base station may determine a region of a subframe having overlapping resource allocations for a first device of a first type (e.g., ULL device) and a second device of a second type (e.g., legacy device), wherein the first device of the first type has a capability to perform certain procedures with low latency relative to the second device of the second type that lacks the capability. The base station may modulate data from the region of the subframe for transmission to the first and the second devices, using a hierarchical modulation scheme.

公开(公告)号：US20190289607A1

公开(公告)日：2019-09-19

申请号：US16432534

申请日：2019-06-05

Applicant: QUALCOMM Incorporated

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

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

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：US10375713B2

公开(公告)日：2019-08-06

申请号：US15644378

申请日：2017-07-07

Applicant: QUALCOMM Incorporated

Inventor： Kapil Gulati ,  Gaurav Gupta ,  Shailesh Patil ,  Durga Prasad Malladi ,  Sudhir Kumar Baghel ,  Marco Papaleo

IPC: H04W72/12 ,  H04L5/00 ,  H04W72/04 ,  G06Q50/30 ,  H04W74/08 ,  H04W16/14 ,  H04L29/08 ,  H04W84/18 ,  H04W28/06 ,  H04W88/06

Abstract: A framework to manage coexistence of multiple technologies over multiple channels is desired. The apparatus may be a user equipment (UE). The UE detects whether a second technology different from a first communication technology utilized by the UE is active on a first channel. The UE performs, based on the detection, an action associated with assigning the first communication technology to at least one of the first channel or a second channel.

公开(公告)号：US10356807B2

公开(公告)日：2019-07-16

申请号：US14791835

申请日：2015-07-06

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Aleksandar Damnjanovic ,  Kiran Kumar Somasundaram ,  Tao Luo ,  Onkar Jayant Dabeer ,  Durga Prasad Malladi ,  Naga Bhushan ,  Yongbin Wei ,  Peter Gaal ,  Wanshi Chen ,  Anastasios Stamoulis ,  Hao Xu ,  Xiaoxia Zhang

IPC: H04W72/12 ,  H04B7/08 ,  H04L5/00 ,  H04L29/08 ,  H04W52/54 ,  H04W74/08 ,  H04W16/14 ,  H04W76/11

Abstract: Techniques are described for wireless communication. A first method may include inserting, in a first transmission using a first radio access technology (RAT), a channel occupancy identifier for a second transmission using a second RAT. The first method may also include transmitting the first transmission having the channel occupancy identifier over an unlicensed radio frequency spectrum band. A second method may include receiving, at a receiver operated using a first RAT, a channel occupancy identifier for a transmission using a second RAT. The channel occupancy identifier may be received over an unlicensed radio frequency spectrum band. The second method may also include decoding the channel occupancy identifier to identify a backoff period, and refraining from accessing the unlicensed radio frequency spectrum band using the first RAT based at least in part on the identified backoff period.

公开(公告)号：US10291451B2

公开(公告)日：2019-05-14

申请号：US15711697

申请日：2017-09-21

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Hao Xu ,  Durga Prasad Malladi

IPC: H04L27/26 ,  H04W74/08 ,  H04W74/00 ,  H04W28/18 ,  H04W88/08 ,  H04B1/00 ,  H04L5/00 ,  H04W4/70

Abstract: Certain aspects of the present disclosure provide techniques for improving a physical random access channel (PRACH) design, for example, to support larger cell radius for communications in a wireless network. In aspects, a method of wireless communication by a user equipment (UE) is provided. The method generally includes receiving at least one configuration of a plurality of available narrowband physical random access channel (NPRACH) configurations or an indication of one of the plurality of NPRACH configurations. Each of the plurality of NPRACH configurations includes a different combination of at least two of a multi-level frequency hopping patter, cyclic prefix length, symbol group format, or tone spacing for NPRACH signals. The method also includes determining at least one resource within a plurality of available NPRACH resources according to the received configuration(s) or the received indication, and transmitting a NPRACH signal using the determined at least one resource.