公开(公告)号：US20170063504A1

公开(公告)日：2017-03-02

申请号：US15251093

申请日：2016-08-30

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Chirag Patel ,  Peter Gaal ,  Vinay Chande ,  Nachiappan Valliappan ,  Ahmed Sadek

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

Abstract: Techniques for operator identification on a shared communication medium are disclosed. An access point may determine an operator identifier for an operator associated with an access point and configure a set of resource elements to carry an operator identifier reference signal embedded with the operator identifier. The access point may then transmit the operator identifier reference signal using the configured set of resource elements. An access terminal may receive signaling from an access point on a set of resource elements and monitor the signaling for an operator identifier reference signal. The access terminal may then determine an operator identifier for an operator associated with the access point based on the operator identifier reference signal.

Abstract translation: 公开了用于共享通信介质上的操作者识别的技术。 接入点可以确定与接入点相关联的运营商的运营商标识符，并且配置一组资源元素以携带嵌入有运营商标识符的运营商标识符参考信号。 然后，接入点可以使用配置的一组资源元素来发送运营商标识符参考信号。 接入终端可以从一组资源元素上的接入点接收信令，并监视用于操作者标识符参考信号的信令。 然后，接入终端可以基于运营商标识符参考信号来确定与接入点相关联的运营商的运营商标识符。

公开(公告)号：US10595327B2

公开(公告)日：2020-03-17

申请号：US16383541

申请日：2019-04-12

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Sadek ,  Nachiappan Valliappan ,  Tamer Kadous ,  Chirag Patel ,  Tao Luo

IPC: H04W72/12 ,  H04W16/14 ,  H04L5/00 ,  H04W72/04 ,  H04L5/14 ,  H04W74/08 ,  H04W84/12

Abstract: Techniques for managing access to a shared communication medium are disclosed. Scheduling grants may be sent to different access terminals for different sets of resources for uplink transmission on the communication medium. A series of re-contention gaps may be scheduled for access terminal contention within or between the different sets of resources. Uplink and downlink transmission on the communication medium may be silenced during each of the series of re-contention gaps. Moreover, an access terminal may receive a scheduling grant that allocates a set of resources to the access terminal for uplink transmission on a communication medium and contend for access to the communication medium based on the scheduling grant. The access terminal may then selectively transmit uplink traffic over the allocated set of resources based on the contending.

公开(公告)号：US10219300B2

公开(公告)日：2019-02-26

申请号：US15240476

申请日：2016-08-18

Applicant: QUALCOMM Incorporated

Inventor： Alexei Gorokhov ,  Peter Gaal ,  Nachiappan Valliappan ,  Chirag Patel ,  Ahmed Sadek ,  Brian Banister ,  Tao Luo ,  Tamer Kadous

IPC: H04W74/08 ,  H04W72/12 ,  H04L5/00 ,  H04L5/14 ,  H04W16/14 ,  H04W74/00 ,  H04W84/12

Abstract: Techniques for reservation coordination on a shared communication medium are disclosed. An access point, for example, may contend for access to a communication medium, and transmit a channel reservation message in accordance with a first Radio Access Technology (RAT) to reserve the communication medium for a transmission opportunity (TXOP) duration based on the contending. The access point may then transmit, during the reserved TXOP duration, a reservation coordination signal in accordance with a second RAT to convey reservation coordination information associated with the reserved TXOP duration.

公开(公告)号：US09986574B2

公开(公告)日：2018-05-29

申请号：US14687264

申请日：2015-04-15

Applicant: QUALCOMM Incorporated

Inventor： Ping Xia ,  Ahmed Kamel Sadek ,  Nachiappan Valliappan

IPC: H04W72/08 ,  H04J3/16 ,  H04W16/14 ,  H04W72/04 ,  H04W74/08 ,  H04W24/08 ,  H04W84/04 ,  H04W88/10

CPC classification number: H04W72/085 ,  H04J3/1694 ,  H04W16/14 ,  H04W24/08 ,  H04W72/0453 ,  H04W72/08 ,  H04W72/082 ,  H04W74/0808 ,  H04W84/045 ,  H04W88/10

Abstract: Techniques for channel selection and related operations in a shared spectrum environment are disclosed. In one example, a channel selector or the like may be used to select one of a number of available channels as an operating channel based on a comparison of cost functions for each of the available channels, with the cost functions being based on separate utility and penalty metrics. In another example, a channel scanner or the like may be used to trigger a channel scan in response to a channel quality metric indicating poor service for a threshold number or proportion of access terminals. In another example, an operating mode controller may be used to trigger a Time Division Multiplexing (TDM) mode on an operating channel in response to a utilization metric being above a threshold. The TDM mode may cycle operation between activated and deactivated periods in accordance with a TDM communication pattern.

公开(公告)号：US09806836B2

公开(公告)日：2017-10-31

申请号：US14711384

申请日：2015-05-13

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Kamel Sadek ,  Nachiappan Valliappan

IPC: H04J1/16 ,  H04J3/16 ,  H04W72/12 ,  H04J3/14 ,  H04L5/00 ,  H04W74/08 ,  H04W88/10

CPC classification number: H04J3/1694 ,  H04J3/14 ,  H04L5/0007 ,  H04W72/1215 ,  H04W74/0808 ,  H04W88/10

Abstract: Techniques for co-existence between wireless Radio Access Technologies (RATs) and related operations in shared spectrum are disclosed. Operation on a communication medium shared between RATs may be managed by a transceiver configured to operate in accordance with a first RAT and to monitor the medium for signaling associated with a second RAT. A medium analyzer may be configured to determine one or more Time Division Multiplexing (TDM) parameters of a TDM communication pattern associated with the second RAT based on the monitored signaling. A transmission controller may be configured to set one or more transmission parameters for the first RAT based on the determined one or more TDM parameters. The transceiver may be further configured to transmit on the medium in accordance with the one or more transmission parameters.

公开(公告)号：US09775048B2

公开(公告)日：2017-09-26

申请号：US14486778

申请日：2014-09-15

Applicant: QUALCOMM Incorporated

Inventor： Akula Aneesh Reddy ,  Nachiappan Valliappan ,  Ahmed Kamel Sadek ,  Tingfang Ji

IPC: H04W80/04 ,  H04W16/14

CPC classification number: H04W16/14 ,  H04L5/0098

Abstract: The present disclosure presents a method and an apparatus for improving performance of a user equipment (UE) operating in unlicensed spectrum. For example, the disclosure presents a method for receiving, at the UE, a secondary component carrier (SCC) update from a small cell. The example method further includes tuning the UE to a second SCC in response to receiving the update. The update is received at the UE when the small cell operating on a first radio access technology (RAT) determines that a channel associated with a first SCC of the small cell is also in use by another entity operating on a second RAT. As such, improved performance of a user equipment (UE) operating in an unlicensed spectrum may be achieved.

公开(公告)号：US10651987B2

公开(公告)日：2020-05-12

申请号：US15251093

申请日：2016-08-30

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Chirag Patel ,  Peter Gaal ,  Vinay Chande ,  Nachiappan Valliappan ,  Ahmed Sadek

IPC: H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04W16/14 ,  H04W88/08 ,  H04W84/04 ,  H04W16/32

Abstract: Techniques for operator identification on a shared communication medium are disclosed. An access point may determine an operator identifier for an operator associated with an access point and configure a set of resource elements to carry an operator identifier reference signal embedded with the operator identifier. The access point may then transmit the operator identifier reference signal using the configured set of resource elements. An access terminal may receive signaling from an access point on a set of resource elements and monitor the signaling for an operator identifier reference signal. The access terminal may then determine an operator identifier for an operator associated with the access point based on the operator identifier reference signal.

公开(公告)号：US10374777B2

公开(公告)日：2019-08-06

申请号：US15249954

申请日：2016-08-29

Applicant: QUALCOMM Incorporated

Inventor： Tamer Adel Kadous ,  Chirag Sureshbhai Patel ,  Ahmed Kamel Sadek ,  Nachiappan Valliappan ,  Tao Luo ,  Alexei Yurievitch Gorokhov

IPC: H04L5/00

Abstract: Techniques for communication are disclosed. A method may include selecting from a subframe two or more resource elements for control signaling, wherein the subframe includes a plurality of symbol periods and each symbol period includes a plurality of resource elements, wherein the selected two or more resource elements are associated with a concurrent symbol period, and transmitting a resource allocation message to an access terminal, wherein the resource allocation message indicates that the selected two or more resource elements are allocated for control signaling.

公开(公告)号：US10201014B2

公开(公告)日：2019-02-05

申请号：US15234959

申请日：2016-08-11

Applicant: QUALCOMM Incorporated

Inventor： Tamer Adel Kadous ,  Nachiappan Valliappan ,  Ahmed Kamel Sadek ,  Andrei Dragos Radulescu

IPC: H04L12/28 ,  H04W74/08 ,  H04W72/04 ,  H04W72/14 ,  H04W16/14 ,  H04W74/04

Abstract: Techniques for managing contention on a shared communication medium are disclosed. Various techniques are provided to facilitate aspects such as reference signaling, downlink medium access, uplink medium access, resource reuse, channel structures, acknowledgment schemes, fairness, acquisition, random access, paging, mobility, inter-operator mitigation, and so on for a frame structure implemented on the shared communication medium.

公开(公告)号：US10080159B2

公开(公告)日：2018-09-18

申请号：US14471840

申请日：2014-08-28

Applicant: QUALCOMM Incorporated

Inventor： Nachiappan Valliappan ,  Kiran Somasundaram ,  Ahmed Kamel Sadek

IPC: H04W28/08 ,  H04W16/14 ,  H04W72/08 ,  H04W28/20 ,  H04W72/12 ,  H04W74/08

CPC classification number: H04W28/08 ,  H04W16/14 ,  H04W28/20 ,  H04W72/082 ,  H04W72/085 ,  H04W72/1215 ,  H04W74/0808

Abstract: Systems and methods for dynamic bandwidth management for load-based equipment in unlicensed spectrum are disclosed. In an aspect, the disclosure provides a method for dynamic bandwidth management. The method includes obtaining training data by monitoring a plurality of channels in an unlicensed spectrum during a training period. The method further includes determining that at least a first channel of the plurality of channels is available for a transmission. The method also includes determining, based on the training data, whether to wait for an additional channel of the plurality of channels to become available for the transmission. Determining whether to wait may be based on either training data including probabilities that no additional channel is to become available within a transmission opportunity or a machine learning classification of a current state of the backoff counters based on training data including samples of previous states of backoff counters.