公开(公告)号：US20190090239A1

公开(公告)日：2019-03-21

申请号：US16196622

申请日：2018-11-20

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04W76/27 ,  H04L5/00 ,  H04W72/14 ,  H04W72/08 ,  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：US20190075580A1

公开(公告)日：2019-03-07

申请号：US16160854

申请日：2018-10-15

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Durga Prasad Malladi ,  Peter Gaal ,  Yongbin Wei ,  Hao Xu ,  Shimman Arvind Patel ,  Aleksandar Damnjanovic

IPC: H04W72/12 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communication are described. A receiving device may detect a signal associated with low latency transmissions and decode a non-low latency communication accordingly. The receiving device may receive an indicator from a transmitting device that indicates where and when low latency communications occur. The indication may specify frequency resources or symbols used by the low latency communication. The indicator may be transmitted during the same subframe as the low latency communication, at the end of a subframe, or during a subsequent subframe. The receiving device may use the indicator to mitigate low latency interference, generate channel estimates, and reliably decode the non-low latency communication. In some cases, the interfering low latency communication may occur within the serving cell of the receiving device; or the interfering low latency communication may occur in a neighboring cell.

公开(公告)号：US10219256B2

公开(公告)日：2019-02-26

申请号：US14984339

申请日：2015-12-30

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Durga Prasad Malladi ,  Yongbin Wei ,  Jelena Damnjanovic ,  Aleksandar Damnjanovic

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/00 ,  H04L1/18 ,  H04W72/14

Abstract: Described herein are methods, systems, and apparatus for communicating control information over a primary component carrier (PCell). In one example, a method for wireless communication is described that includes communicating using an enhanced component carrier (eCC) on at least a secondary component carrier (SCell) in a carrier aggregation (CA) configuration. The method may also include using a PCell for control information pertaining to communications on the eCC. The control information may be channel state information (CSI) or acknowledgment/negative-acknowledgment (ACK/NACK) feedback information.

公开(公告)号：US10206117B2

公开(公告)日：2019-02-12

申请号：US15654299

申请日：2017-07-19

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Siddhartha Mallik ,  Juan Montojo ,  Xiaoxia Zhang ,  Taesang Yoo

IPC: H04W16/14 ,  H04W72/12 ,  H04B17/309 ,  H04W72/08 ,  H04W74/08 ,  H04W56/00

Abstract: Certain aspects of the present disclosure provide techniques for accessing shared spectrum in new radio (NR). An apparatus of a first operator may determine a synchronization configuration for the first operator and at least a second operator that share spectrum, identify, based on the synchronization configuration, at least a first channel reserved for contending for access to the spectrum, and reserve the access to the spectrum in the first channel to access at least a second channel for communications.

公开(公告)号：US10200906B2

公开(公告)日：2019-02-05

申请号：US15368179

申请日：2016-12-02

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Juan Montojo

IPC: H04W24/10 ,  H04W48/16 ,  H04W16/10 ,  H04W72/04 ,  H04W72/08 ,  H04W88/04 ,  H04W92/20

Abstract: Systems and methods providing radio resource management (RRM) to facilitate the co-existence of the neighboring cells, such as to manage radio resources for deployments utilizing a same frequency or overlapping frequencies, using discovery signal transmission are disclosed. Discovery signal transmission may be used to enable network elements of a wireless communication system to discover other network elements of the wireless communication system, whether such other network elements are operating with respect to a cell of a same or different operator. Transmission of discovery signals may be utilized to detect situations of dominant interference, whereby the network elements of neighboring cells may provide protected resources for each other. The protected resources may comprise particular frequencies, time slots, channels, etc.

公开(公告)号：US10182456B2

公开(公告)日：2019-01-15

申请号：US15246005

申请日：2016-08-24

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Maarten Menzo Wentink ,  Srinivas Yerramalli ,  Qingsi Wang ,  Yongbin Wei ,  Juan Montojo

IPC: H04W74/08 ,  H04W16/14 ,  H04W84/12 ,  H04L5/00 ,  H04W88/06

Abstract: Detection and reporting techniques for collisions between transmitters of two different radio access technologies (RATs) transmitting in a shared radio frequency spectrum band is described. The collision may occur following a listen-before-talk procedure but prior to transmission of data, and may not affect the reception of the transmitted data. Collisions may be detected using for example, energy sensing, preamble or ready-to-send (RTS) signal detection, or unsuccessful decoding of all or part of a channel reservation signal. A transmitting device may determine a collision has occurred by detecting an energy level during a preamble transmission is greater than a threshold level or by detecting that an energy level during a transmission gap of a time-domain energy pattern is above a threshold level. A receiving device, such as a user equipment (UE), that detects the collision may report the collision to the transmitter.

公开(公告)号：US20180359685A1

公开(公告)日：2018-12-13

申请号：US15950491

申请日：2018-04-11

Applicant: QUALCOMM Incorporated

Inventor： Junyi Li ,  Aleksandar Damnjanovic ,  Michael Mingxi Fan ,  Yongbin Wei ,  Tamer Kadous ,  Ahmed Sadek

IPC: H04W48/16 ,  H04W16/14 ,  H04W56/00 ,  H04W72/04

Abstract: Wireless communication systems and methods related to service advertising and discovery with dynamic spectrum use are provided. A user equipment (UE) receives, from a first wireless communication device, a network information signal in a spectrum. The UE receives, from a second wireless communication device, a service advertising signal based on at least a synchronization to the network information signal. The service advertising signal indicates an availability of a service. The UE transmits, to the second wireless communication device, a request for the service. The first wireless communication device and the second wireless communication device are associated with different operating entities of the spectrum.

公开(公告)号：US20180343156A1

公开(公告)日：2018-11-29

申请号：US15975207

申请日：2018-05-09

Applicant: QUALCOMM Incorporated

Inventor： Rahul Malik ,  Aleksandar Damnjanovic ,  Andrei Dragos Radulescu ,  Srinivas Yerramalli ,  Tamer Kadous ,  Yongbin Wei

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

Abstract: Methods, systems, and devices for wireless communication are described. A base station may perform an access procedure to obtain access to a shared radio frequency spectrum band during a measurement window and generate a synchronization signal (SS) burst comprising a plurality of SS blocks. The base station may perform a beam sweeping first transmission of the SS burst over the shared radio frequency spectrum based at least in part on the access procedure. In the first transmission or a second transmission, the base station may transmit at least one of a first indication of a time of access to the shared radio frequency spectrum band with respect to the measurement window, a second indication of a transmission beam associated with the SS block, and a third indication of a quantity of remaining SS blocks from the plurality of SS blocks to follow the SS block in the measurement window.

公开(公告)号：US20180338326A1

公开(公告)日：2018-11-22

申请号：US15981076

申请日：2018-05-16

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Kamel Sadek ,  Aleksandar Damnjanovic

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

Abstract: Methods, systems, and devices for wireless communication are described. A base station may transmit a first signal; listen, after transmitting the first signal and during a listening interval, for a second signal from a user equipment (UE) affected by the first signal, the second signal being indicative of interference at the first UE; receive the second signal during the listening interval; and initiate an interference management procedure based on receipt of the second signal.

公开(公告)号：US10136452B2

公开(公告)日：2018-11-20

申请号：US15050404

申请日：2016-02-22

Applicant: QUALCOMM Incorporated

Inventor： Zhengwei Liu ,  Xiaoxia Zhang ,  Wanshi Chen ,  Siddhartha Mallik ,  Aleksandar Damnjanovic ,  Onkar Jayant Dabeer

IPC: H04W16/14 ,  H04W74/08 ,  H04W84/04

Abstract: Additional improvements to the design of enhanced physical random access channel (ePRACH) procedures are disclosed for communications systems having contention-based shared spectrum including unlicensed frequency bands. The additional improvements address the uncertainty of transmission in listen before talk (LBT)-based communications and cooperation with other radio access technologies competing for the same frequency spectrum.