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公开(公告)号：US09787569B2
公开(公告)日：2017-10-10
申请号：US14968563
申请日：2015-12-14
Applicant: QUALCOMM Incorporated
Inventor： Kiran Kumar Somasundaram , Durga Prasad Malladi , Tao Luo , Aleksandar Damnjanovic , Yongbin Wei , Qingsi Wang , Srinivas Yerramalli
IPC: H04W4/00 , H04L12/26 , H04W24/08 , H04L1/00 , H04W16/14 , H04B17/318 , H04W88/06 , H04W88/10 , H04W84/12
CPC classification number: H04L43/16 , H04B17/318 , H04L1/0036 , H04W16/14 , H04W24/08 , H04W74/08 , H04W84/12 , H04W88/06 , H04W88/10
Abstract: The disclosure provides for a method of interference detection using adaptive energy detection in unlicensed spectrum. The method can include a first modem operating according to a first radio access technology (RAT) receiving a message from a network entity operating according to the first RAT. The first modem sends a detected energy level value to a second modem that is using a second RAT, where the detected energy level value is based at least on the measured energy level of the received message. The second modem adjusts an energy detection threshold based on the detected energy level value received from the first modem. In an aspect, the first modem receives messages from a plurality of network entities operating according to the first RAT, where the detected energy level value is determined based on measured energy levels of the plurality of received messages.
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公开(公告)号：US20170288794A1
公开(公告)日：2017-10-05
申请号：US15629483
申请日：2017-06-21
Applicant: QUALCOMM Incorporated
Inventor： Srinivas Yerramalli , Tao Luo , Ravi Teja Sukhavasi , Makesh Pravin John Wilson , Kiran Kumar Somasundaram , Onkar Jayant Dabeer , Durga Prasad Malladi , Naga Bhushan , Yongbin Wei , Peter Gaal , Wanshi Chen , Hao Xu , Aleksandar Damnjanovic
IPC: H04B17/309 , H04W74/08 , H04W16/14
Abstract: The present disclosure, for example, relates to one or more techniques for scaling the bandwidth of a carrier. Available sub-channels of an unlicensed radio frequency spectrum band may be determined, and the available sub-channels may be included in the carrier. The available sub-channels may be adjacent or non-adjacent sub-channels. The bandwidth of the carrier may be determined according to which sub-channels are included in the carrier. In this way, the bandwidth of the carrier may be scaled according to the available sub-channels in the unlicensed radio frequency spectrum band.
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公开(公告)号：US09763225B2
公开(公告)日：2017-09-12
申请号：US14507727
申请日：2014-10-06
Applicant: QUALCOMM Incorporated
Inventor： Tingfang Ji , Naga Bhushan , Yongbin Wei , Peter Gaal , Tao Luo , Wanshi Chen , Durga Prasad Malladi , Aleksandar Damnjanovic , Kiran Kumar Somasundaram , Hao Xu
CPC classification number: H04W72/04 , H04W72/1215 , H04W74/0808
Abstract: The subject technology provides for performing clear channel assessment (CCA) in LTE-U. Transmissions may be monitored in a resource reserved for CCA. An energy of the transmissions is detected over a shorter duration than an assigned slot in the resource reserved for CCA. A beacon may be transmitted in a slot assigned to a wireless entity for CCA in response to detecting a clear channel based on the monitoring. In another aspect, a beacon transmission for CCA and a timing for the monitoring are adapted in response to detecting the transmissions for a consecutive number of CCA periods. Further, the subject technology provides for adjusting to a maximum power for transmission of a beacon in a slot assigned to a mobile station for CCA in response to detecting a clear channel based on the monitoring.
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公开(公告)号：US20150373652A1
公开(公告)日：2015-12-24
申请号：US14743312
申请日：2015-06-18
Applicant: QUALCOMM Incorporated
Inventor： Onkar Jayant Dabeer , Aleksandar Damnjanovic , Srinivas Yerramalli , Wanshi Chen , Kiran Kumar Somasundaram , Naga Bhushan
CPC classification number: H04W52/246 , H04B7/0874 , H04W52/225 , H04W52/241 , H04W52/243 , H04W52/262 , H04W74/0808
Abstract: Techniques are described for contention-based wireless communications channel access that may improve the likelihood that a contention procedure will pass and allow a device to transmit an uplink or downlink transmission using the contention-based channel. Various disclosed techniques may determine a transmit power for a subsequent transmission based on channel characteristics during one or more clear channel assessment (CCA) time durations. The transmit power may be selected to provide a CCA threshold that may increase the likelihood that a device will win contention for the channel during the CCA procedure.
Abstract translation: 描述了用于基于争用的无线通信信道接入的技术，其可以提高竞争过程将通过并允许设备使用基于竞争的信道来发送上行链路或下行链路传输的可能性。 各种公开的技术可以在一个或多个清除信道评估（CCA）持续时间期间基于信道特性来确定用于后续传输的发射功率。 可以选择发射功率以提供CCA阈值，其可以增加在CCA过程期间设备将赢得信道争用的可能性。
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公开(公告)号：US10716129B2
公开(公告)日：2020-07-14
申请号：US16415851
申请日：2019-05-17
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
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.
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Patent Agency Ranking
公开(公告)号：US10701692B2
公开(公告)日：2020-06-30
申请号：US15199214
申请日：2016-06-30
Applicant: QUALCOMM Incorporated
Inventor： Madhavan Srinivasan Vajapeyam , Vikas Jain , Kiran Kumar Somasundaram , Aleksandar Damnjanovic , Fang Chen
IPC: H04W72/04 , H04J11/00 , H04L5/00 , H04L29/12 , H04W8/08 , H04W28/02 , H04W72/14 , H04W84/12 , H04W88/02
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.
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27.发明申请公开(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
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.
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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
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.
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29.发明授权公开(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
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.
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公开(公告)号：US10469185B2
公开(公告)日：2019-11-05
申请号：US15629483
申请日：2017-06-21
Applicant: QUALCOMM Incorporated
Inventor： Srinivas Yerramalli , Tao Luo , Ravi Teja Sukhavasi , Makesh Pravin John Wilson , Kiran Kumar Somasundaram , Onkar Jayant Dabeer , Durga Prasad Malladi , Naga Bhushan , Yongbin Wei , Peter Gaal , Wanshi Chen , Hao Xu , Aleksandar Damnjanovic
Abstract: The present disclosure, for example, relates to one or more techniques for scaling the bandwidth of a carrier. Available sub-channels of an unlicensed radio frequency spectrum band may be determined, and the available sub-channels may be included in the carrier. The available sub-channels may be adjacent or non-adjacent sub-channels. The bandwidth of the carrier may be determined according to which sub-channels are included in the carrier. In this way, the bandwidth of the carrier may be scaled according to the available sub-channels in the unlicensed radio frequency spectrum band.
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