公开(公告)号：US10700822B2

公开(公告)日：2020-06-30

申请号：US16244718

申请日：2019-01-10

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/14 ,  H04L1/18 ,  H04W16/14 ,  H04W74/08

Abstract: Systems and methods for uplink transmission scheduling are disclosed. A wireless device may monitor at least two downlink sub-frames for scheduling grants. The wireless device may receive a first uplink scheduling grant in one of the at least two downlink sub-frames for at least a first uplink sub-frame and receive a second uplink scheduling grant in another of the at least two downlink sub-frames for at least the first uplink sub-frame. The wireless device may perform an uplink transmission in the first uplink sub-frame based on one or both of the first uplink scheduling grant and the second uplink scheduling grant. For the uplink transmission, the wireless device may select a most recent uplink scheduling grant or select an uplink scheduling grant received in a downlink sub-frame at least a minimum number of sub-frames before the first uplink sub-frame.

公开(公告)号：US10674467B2

公开(公告)日：2020-06-02

申请号：US14825843

申请日：2015-08-13

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Wanshi Chen ,  Aleksandar Damnjanovic

IPC: H04W56/00 ,  H04W72/04 ,  H04W72/12 ,  H04W74/08

Abstract: Management of re-synchronization procedures for long term evolution (LTE)/LTE-Advanced (LTE-A) systems with unlicensed spectrum is disclosed. In managing re-synchronization procedures, a base station selects and sends out an enablement indication of the uplink and/or downlink re-synchronization procedure selected. The base station may select the re-synchronization procedures by itself or in coordination with neighboring base stations. Once the indication for the uplink re-synchronization procedure is received at a user equipment (UE), the UE performs its extended clear channel assessment (ECCA) check, but, when the ECCA check is successful, the UE will delay data transmission until the next re-synchronization boundary defined by the selected uplink re-synchronization procedure. With the delayed transmission, the UE performs a clear channel assessment (CCA) check prior to the re-synchronization boundary in order to determine whether the channel is still clear for transmission after the idle period.

公开(公告)号：US10674407B2

公开(公告)日：2020-06-02

申请号：US15969516

申请日：2018-05-02

Applicant: QUALCOMM Incorporated

Inventor： Osok Song ,  Aleksandar Damnjanovic ,  Tingfang Ji ,  Parag Arun Agashe ,  Jaber Mohammad Borran ,  Madhavan Srinivasan Vajapeyam ,  Stefan Geirhofer

IPC: H04W28/16 ,  H04W92/20

Abstract: Methods and apparatus for supporting adaptive resource negotiation between evolved node Bs (eNBs) for enhanced inter-cell interference coordination (eICIC) are provided. This resource negotiation may occur via a network backhaul between the eNBs or, in some cases, using over-the-air messages (OAMs). For certain aspects, a first eNB may propose its adaptive resource partitioning information (ARPI) to a second eNB, where the second eNB may accept or reject the proposed resource partitioning. If the second eNB accepts the proposed partitioning, the second eNB may schedule resources, such as subframes, based on the accepted partitioning.

公开(公告)号：US20200100247A1

公开(公告)日：2020-03-26

申请号：US16554194

申请日：2019-08-28

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Yisheng Xue ,  Aleksandar Damnjanovic ,  Jing Sun ,  Tamer Kadous ,  Yongbin Wei

IPC: H04W72/04 ,  H04W16/14 ,  H04W74/08 ,  H04L5/00

Abstract: Wireless communications systems and methods related to communications with narrowband wireless communication devices over a wide frequency band are provided. A first wireless communication device transmits a first configuration indicating a first set of channel monitoring occasions for a first channel and a second set of channel monitoring occasions for a second channel The first wireless communication device transmits, in the first channel based on at least a listen-before-talk (LBT) in the first channel, a first occupancy indication signal indicating a first transmission opportunity (TXOP) in the first channel. The first wireless communication device transmits, in the first channel based on the first configuration, a second occupancy indication signal associated with the first TXOP in the first channel during a channel monitoring occasion of the first set of channel monitoring occasions within the first TXOP.

公开(公告)号：US20200092887A1

公开(公告)日：2020-03-19

申请号：US16692139

申请日：2019-11-22

Applicant: QUALCOMM Incorporated

Inventor： Madhavan Srinivasan Vajapeyam ,  Vikas Jain ,  Kiran Kumar Somasundaram ,  Aleksandar Damnjanovic ,  Fang Chen

IPC: H04W72/04 ,  H04W72/12 ,  H04J11/00 ,  H04L5/00 ,  H04L29/12 ,  H04W8/08 ,  H04W28/02 ,  H04W72/14

Abstract: Techniques are described for wireless communication. One method includes identifying a priority parameter associated with data to be transmitted on an uplink carrier; selecting, based at least in part on the identified priority parameter, between a first type of message for requesting uplink resources in a shared radio frequency spectrum band or a dedicated radio frequency spectrum band, or a second type of message for requesting uplink resources in the dedicated radio frequency spectrum band; and transmitting the selected type of message.

公开(公告)号：US20200084804A1

公开(公告)日：2020-03-12

申请号：US16685891

申请日：2019-11-15

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Aleksandar Damnjanovic ,  Jing Sun

IPC: H04W74/08 ,  H04W72/04 ,  H04W56/00 ,  H04W48/16 ,  H04W16/14 ,  H04L5/00 ,  H04B7/06

Abstract: Wireless communications systems and methods related to performing spatial-specific listen-before-talk (LBT) with discovery signal transmissions for spectrum sharing are provided. A wireless communication device senses a channel in a spatial domain based on a plurality of expected beam transmission directions. The sensing includes sweeping through multiple directional reception beams and listening to the channel in a direction of each of the multiple directional reception beams. After the sensing, the wireless communication device transmits a channel reservation signal using an omnidirectional transmission beam and also transmits a plurality of discovery signals in one or more of the plurality of expected beam transmission directions during a discovery period to facilitate synchronization in the channel based on the sensing.

公开(公告)号：US10588101B2

公开(公告)日：2020-03-10

申请号：US13733683

申请日：2013-01-03

Applicant: QUALCOMM Incorporated

Inventor： Durga Prasad Malladi ,  Yongbin Wei ,  Gavin B. Horn ,  Aleksandar Damnjanovic

IPC: H04W24/02 ,  H04W56/00 ,  H04W88/04 ,  H04W16/26 ,  H04W84/04 ,  H04B7/155

Abstract: Certain aspects of the present disclosure provide methods and apparatus for employing relaying devices, such as Long Term Evolution (LTE) user equipment (UE) relays, having a licensed wireless or wired backhaul link and an unlicensed access link. One method generally includes receiving, at a first device, data from a first apparatus via a first carrier frequency in a licensed spectrum, wherein the first device comprises a relaying device, and relaying the data to a second apparatus via a second carrier frequency in an unlicensed spectrum. In this manner, wireless communication systems with relaying devices may achieve better spectral efficiency in unlicensed access links.

公开(公告)号：US10582502B2

公开(公告)日：2020-03-03

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: H04W72/02 ,  H04W72/04 ,  H04L27/26 ,  H04W74/08 ,  H04W72/12

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：US10555220B2

公开(公告)日：2020-02-04

申请号：US15948764

申请日：2018-04-09

Applicant: QUALCOMM Incorporated

Inventor： Srinivasa Yerramalli ,  Tao Luo ,  Siddhartha Mallik ,  Xiaoxia Zhang ,  Aleksandar Damnjanovic ,  Kiran Kumar Somasundaram

IPC: H04W28/26 ,  H04W16/14 ,  H04W72/04 ,  H04W74/08 ,  H04W72/12

Abstract: Techniques are described for wireless communication. A first method includes contending for access to a first channel of a radio frequency spectrum, and transmitting, upon winning contention for access to the first channel, a first channel reservation indication. The contending may be performed by a first node operating according to a first radio access technology. The first channel reservation indication may be understood by a second node operating according to a second radio access technology.

公开(公告)号：US10554341B2

公开(公告)日：2020-02-04

申请号：US16104111

申请日：2018-08-16

Applicant: QUALCOMM Incorporated

Inventor： Onkar Jayant Dabeer ,  Aleksandar Damnjanovic ,  Kiran Kumar Somasundaram ,  Madhavan Srinivasan Vajapeyam ,  Hao Xu ,  Wanshi Chen ,  Alberto Rico Alvarino

IPC: H04L1/16 ,  H04L12/26 ,  H04L1/00 ,  H04L1/12

Abstract: According to the present disclosure, CSI and/or a plurality of ACKs related to a group of DL data transmissions may be buffered at the UE as a GACK until a DCI trigger is received from the eNB. Once the trigger is received, the UE may transmit the CSI and/or GACK to the eNB. In this way HARQ feedback and/or CSI may be reliably communicated while reducing payload. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus send, to a UE, data transmissions associated with a first plurality of downlink subframes. In an aspect, the apparatus increments a counter for each data transmission sent to the UE. In a further aspect, the apparatus transmits, to the UE, a first trigger for a first GACK when a counter is greater than or equal to a threshold.