公开(公告)号：US10420112B2

公开(公告)日：2019-09-17

申请号：US15435029

申请日：2017-02-16

Applicant: QUALCOMM Incorporated

Inventor： Stefan Geirhofer ,  Naga Bhushan ,  Ravi Palanki ,  Aleksandar Damnjanovic ,  Parag Arun Agashe

IPC: H04W72/04 ,  H04L29/08 ,  H04W76/14 ,  H04W8/00 ,  H04L1/00 ,  H04W28/18 ,  H04L5/14 ,  H04W84/18 ,  H04W28/08 ,  H04W72/02 ,  H04W92/18

Abstract: Techniques for determining resources to use for peer-to-peer (P2P) communication are disclosed. In an aspect, a network entity may receive feedback information (e.g., resource usage information and/or channel state information) from P2P devices and may perform resource partitioning based on the feedback information to allocate some of the available resources for P2P communication. The allocated resources may observe little or no interference from devices engaged in wide area network (WAN) communication. In another aspect, P2P groups may perform resource negotiation via a WAN connection (e.g., with little or no involvement by the WAN) to assign the allocated resources to different P2P groups. In yet another aspect, a device may autonomously determine whether to communicate with another device directly or via a WAN, e.g., whether to initiate P2P communication with another device and whether to terminate P2P communication. In yet another aspect, a network entity may participate in resource negotiation by P2P devices.

公开(公告)号：US20190281482A1

公开(公告)日：2019-09-12

申请号：US16424279

申请日：2019-05-28

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Tao Luo ,  Aleksandar Damnjanovic

IPC: H04W24/08 ,  H04W24/02 ,  H04W74/08 ,  H04W72/08 ,  H04W72/14 ,  H04W72/04 ,  H04W76/27

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. An eNB determines a CCA parameter for use by a UE in performing a CCA procedure for UL transmission and transmits an indication of the CCA parameter to the UE. The UE receives an indication of the CCA parameter for UL transmission from the eNB and performs the CCA procedure for UL transmission using the indicated CCA parameter. The UE may transmit to the eNB prior to receiving the indication of the CCA parameter. The eNB may use the report in determining the CCA parameter for use by the UE.

公开(公告)号：US20190268867A1

公开(公告)日：2019-08-29

申请号：US16409579

申请日：2019-05-10

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Aleksandar Damnjanovic ,  Peter Gaal

IPC: H04W56/00 ,  H04L5/00 ,  H04W74/08

Abstract: Techniques are described for wireless communication. A first method includes generating a first type of synchronization signal based at least in part on a first type of transmission in a shared radio frequency spectrum band, and generating a second type of synchronization signal based at least in part on a second type of transmission in the shared radio frequency spectrum band. The second type of synchronization signal is different from the first type of synchronization signal. A second method includes receiving a synchronization signal associated with a type of transmission in a shared radio frequency spectrum band; determining a type of the synchronization signal; and determining one or more cell parameters based at least in part on the synchronization signal.

公开(公告)号：US20190253228A1

公开(公告)日：2019-08-15

申请号：US16393820

申请日：2019-04-24

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Joseph Paul Odenwalder ,  Stein Arne Lundby ,  Yongbin Wei

IPC: H04L5/00 ,  H04J13/12 ,  H04L1/00 ,  H04J13/00 ,  H04J11/00

CPC classification number: H04L5/0057 ,  H04B1/707 ,  H04J11/00 ,  H04J13/0048 ,  H04J13/12 ,  H04L1/0026 ,  H04L1/0029 ,  H04L1/0057 ,  H04L1/1607 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/006 ,  H04L5/0094

Abstract: Techniques for utilizing multiple carriers to substantially improve transmission capacity are described. For multi-carrier operation, a terminal receives an assignment of multiple forward link (FL) carriers and at least one reverse link (RL) carrier. The carriers may be arranged in at least one group, with each group including at least one FL carrier and one RL carrier. The terminal may receive packets on the FL carrier(s) in each group and may send acknowledgements for the received packets via the RL carrier in that group. The terminal may send channel quality indication (CQI) reports for the FL carrier(s) in each group via the RL carrier in that group. The terminal may also transmit data on the RL carrier(s). The terminal may send designated RL signaling (e.g., to originate a call) on a primary RL carrier and may receive designated FL signaling (e.g., for call setup) on a primary FL carrier.

公开(公告)号：US10375578B2

公开(公告)日：2019-08-06

申请号：US15004628

申请日：2016-01-22

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Tao Luo ,  Peter Gaal ,  Wanshi Chen ,  Xiaoxia Zhang ,  Hao Xu ,  Aleksandar Damnjanovic

IPC: H04W16/14 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04W72/14

Abstract: In the application of TDD and eIMTA to LTE in the unlicensed spectrum, various alterations may be needed to compensate for interference from and the behavior of RATs operating in this range of frequencies. Various UE and base station methods are presented, including modified TDD configurations and UE behaviors to advance operations on unlicensed spectrum. A method, an apparatus, and a computer-readable medium for wireless communication are provided whereby configuration information is conveyed to a UE for communicating on a carrier in the unlicensed spectrum. The configuration information indicates a subframe allocation for at least one frame on the unlicensed carrier. Other aspects are directed to the detection of the transmission, communication of new and modified eIMTA configuration transmissions, and mechanism and behaviors which address unreceived configuration information.

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：US10355828B2

公开(公告)日：2019-07-16

申请号：US15054637

申请日：2016-02-26

Applicant: QUALCOMM Incorporated

Inventor： Madhavan Srinivasan Vajapeyam ,  Aleksandar Damnjanovic ,  Peter Gaal ,  Wanshi Chen ,  Hao Xu

IPC: H04L1/18 ,  H04L5/00 ,  H04W24/08 ,  H04L1/12

Abstract: Methods, systems, and devices for communication are described. Fast error recovery procedures may be employed that decrease latency for radio link control (RLC) data packet recovery during low latency operations. A device may detect a failed low latency transmission, and may activate a timer associated with the failed transmission. The device may generate a failure report if failed transmissions are not rescheduled; for example, if the timer expires before rescheduling. The failure report may be sent to an RLC entity of the device or to a medium access control (MAC) layer entity of the scheduler. In some cases, the device may maintain a list of non-terminated transmissions for high priority bearers.

公开(公告)号：US10334465B2

公开(公告)日：2019-06-25

申请号：US15004672

申请日：2016-01-22

Applicant: QUALCOMM Incorporated

Inventor： Madhavan Srinivasan Vajapeyam ,  Aleksandar Damnjanovic ,  Peter Gaal ,  Tao Luo

IPC: G06F11/00 ,  H04W24/10 ,  H04W24/00 ,  H04L5/00 ,  H04W72/04 ,  H04W72/08 ,  H04W76/28 ,  H04W88/02 ,  H04W88/08

Abstract: UE-aided channel selection within unlicensed frequency bands. A base station may communicate with UEs using LTE/LTE-A carrier waveforms (e.g., configured as a secondary cell) in the unlicensed frequency band. The base station may configure UEs for wide-band interference feedback for channels in the unlicensed frequency band. The measurements of wide-band signal strength may be performed by the UEs on channels for which the base station is not currently transmitting, or during silent periods of a configured secondary cell. The UEs may feedback an average total received power over a measurement bandwidth for one or more frequency channels of the unlicensed frequency band. The base station may receive the wide-band signal strength feedback from the UEs and identify potential frequency channels for channel selection for the secondary cell based on its own measurements of the candidate channels, and the wide-band signal strength feedback from the UEs.

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：US20190166515A1

公开(公告)日：2019-05-30

申请号：US16264313

申请日：2019-01-31

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Juan Montojo

IPC: H04W24/10 ,  H04W48/16 ,  H04W16/10

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.