公开(公告)号：US10536880B2

公开(公告)日：2020-01-14

申请号：US16159184

申请日：2018-10-12

Applicant: AT&T Intellectual Property I, L.P. ,  AT&T Mobility II LLC

Inventor： Zhi Cui ,  Hongyan Lei

IPC: H04W4/00 ,  H04W36/00 ,  H04W80/04 ,  H04L29/08 ,  H04W36/24 ,  H04W36/32 ,  H04W48/10 ,  H04W4/70 ,  H04W76/14

Abstract: A cell reselection procedure in heterogeneous networks is enhanced based on utilization of per category cell reselection parameters. In one aspect, a serving access point can categorize a set of neighbor access points based on cell-type and/or cell-profile data of a set of neighbor access points. Further, the serving access point can determine cell reselection parameters for the different categories. As an example, offset data (Qoffset) can be determined for the different categories. The per category cell reselection parameters can be transmitted to user equipment coupled to the serving access point to facilitate cell reselection. In one example, the per category cell reselection parameters reduce operational costs associated with processing and transmission of system parameters.

公开(公告)号：US10524126B2

公开(公告)日：2019-12-31

申请号：US16110350

申请日：2018-08-23

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Sangar Dowlatkhah ,  Zhi Cui ,  Venson Shaw

IPC: H04W12/06 ,  H04W84/12 ,  H04L29/06 ,  H04W48/16

Abstract: Aspects of the subject disclosure may include, for example, identifying a request from a portable device for authentication to a first WLAN, where the device user is not registered as a WLAN user. An identifier of the device is compared with entries in a list associated with the WLAN and, responsive to a first determination that the identifier corresponds to an entry in the list, wireless access for using the first WLAN is facilitated. Responsive to a second determination that the identifier does not correspond to an entry in the list, a message is transmitted to equipment of a network subscriber regarding the request. Responsive to approval of the request, wireless access to a broadband network using the first WLAN is facilitated; the portable device provides a second WLAN for initiating a second communication session via the device that provides broadband access to a plurality of Wi-Fi enabled devices.

公开(公告)号：US20190386954A1

公开(公告)日：2019-12-19

申请号：US16010339

申请日：2018-06-15

Applicant: AT&T INTELLECTUAL PROPERTY I, L.P. ,  AT&T Mobility II LLC

Inventor： Erie Lai Har Lau ,  Zhi Cui ,  Sangar Dowlatkhah

IPC: H04L29/12 ,  H04W12/06

Abstract: An integrated GW (I-GW) can be utilized to facilitate communications with Internet of things (IoT) devices that operate without Internet protocol (IP) addresses, based on assigned preferences and/or priority. In one aspect, the I-GW can efficiently deliver existing services for various types of IoT devices (e.g., that support different non-IP protocols) and can create emerging applications across different vertical applications. Further, the I-GW can leverage mobility network elements to authenticate, prioritize connections, and/or enable data orchestration via underlying software defined network (SDN)-enabled capabilities and/or infrastructure services. By utilizing IoT devices that do not have IP stacks, a cost and/or size of the IoT devices can be decreased and battery life can be significantly extended.

公开(公告)号：US20190306728A1

公开(公告)日：2019-10-03

申请号：US16443015

申请日：2019-06-17

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Hongyan Lei ,  Zhi Cui ,  Yonghui Tong ,  Yung Choi-Grogan

IPC: H04W16/32 ,  H04L12/24 ,  H04W36/00 ,  H04W72/08

Abstract: Aspects of the subject disclosure may include, for example, obtaining configuration update messages received from neighbor cells of a serving cell of a wireless network, wherein the configuration update messages include dual connectivity capability information of the neighbor cells. The neighbor cells are ranked according to the dual connectivity capability information resulting in a dual connectivity ranking. A target cell of the neighbor cells is selected according to the dual connectivity ranking and a dual connectivity capability of a mobile device, and a dual connectivity service is established according to the dual connectivity ranking. The dual connectivity service includes exchanging user plane messages between the mobile device, a master cell and a secondary cell of the wireless network. Other embodiments are disclosed.

公开(公告)号：US20190294996A1

公开(公告)日：2019-09-26

申请号：US16436103

申请日：2019-06-10

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Zhi Cui ,  Sangar Dowlatkhah

IPC: G06N20/00 ,  H04L12/24 ,  H04W24/08 ,  H04L12/26

Abstract: A software defined network controller for controlling a radio access network has a leaning capability by which usage characteristics are learned for each service provided by the radio access network. For example, bandwidth data, connection duration data and latency data may be used to learn usage characteristics for each radio access network service. The learned usage characteristics are then used in allocating network resources in response to a service request.

公开(公告)号：US10425859B2

公开(公告)日：2019-09-24

申请号：US15883613

申请日：2018-01-30

Applicant: AT&T Intellectual Property I, L.P. ,  AT&T Mobility II LLC

Inventor： Zhi Cui ,  Milap V. Majmundar ,  Weihua Ye

IPC: H04W28/08 ,  H04L12/24 ,  H04W28/16 ,  H04W88/08 ,  H04W24/02 ,  H04B17/345 ,  H04L12/751 ,  H04L12/26

Abstract: Dynamic grouping of cell site devices to network devices that include a group of baseband processing devices is facilitated. One method includes determining, by a device including a processor, respective load information for cell site devices of respective cell sites associated with a network; and determining, by the device, interference information associated with the cell site devices. The method also includes determining, by the device, configuration information of a switch device communicatively coupled between the cell site devices and network devices that include a group of baseband processing devices. The determining the configuration information is based on the respective load information of the cell site devices and the interference information associated with the cell site devices.

公开(公告)号：US20190274086A1

公开(公告)日：2019-09-05

申请号：US15912094

申请日：2018-03-05

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Zhi Cui ,  Jiansong Wang ,  Thomas Anschutz

IPC: H04W40/28 ,  H04W4/70 ,  H04W48/20 ,  H04W8/26 ,  H04W40/24 ,  H04W12/06

Abstract: A software defined network controller receives from a radio access network access point an attach request generated by a user equipment that includes a user equipment identification and an IP address for the radio access network access point. The controller assigns a temporary identification to the user equipment and sends a modified attach request including the temporary identification, and application server identification and an application server IP address to the radio access network access point. The controller configures a forwarding table associated with the radio access network access point so that the access point forwarding table matches the user equipment identification, the application server identification and the application server IP address. The controller configures a service edge creation environment function forwarding table so that the forwarding table matches the user equipment identification mapped to the radio access network access point IP address and instructs an action so that packet traffic to and from the user equipment is processed without an explicit connection oriented signaling protocol.

公开(公告)号：US20190246327A1

公开(公告)日：2019-08-08

申请号：US16390109

申请日：2019-04-22

Applicant: AT&T Mobility II LLC ,  AT&T INTELLECTUAL PROPERTY I, L.P.

Inventor： Rick Tipton ,  Mark Austin ,  Zhi Cui ,  Alain Ohana

IPC: H04W36/14 ,  H04L12/24 ,  H04W36/22 ,  H04W28/08 ,  H04W24/02 ,  H04L12/54

CPC classification number: H04W36/14 ,  H04L12/5692 ,  H04L41/0816 ,  H04L41/0893 ,  H04W24/02 ,  H04W28/08 ,  H04W36/22 ,  H04W36/245 ,  H04W36/26 ,  H04W36/30

Abstract: Intelligent radio access technology sensing and selection are applied in a dynamic traffic steering network. Network characteristics and network policies are determined. A server sends network characteristics and network policies to user equipment devices. User equipment devices can determine a radio access technology to connect to based on network policies and network characteristics. Further, it can be determined how to select user equipment devices for connection to a radio access network via a radio access technology. User equipment devices can dynamically select a radio access network for connection based on real-time or near real-time radio access network conditions. A self-organizing network can monitor and determine radio access network conditions and the radio access network conditions can be sent to user equipment devices in given cellular broadcast area.

公开(公告)号：US20190182731A1

公开(公告)日：2019-06-13

申请号：US16278486

申请日：2019-02-18

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Zhi Cui ,  Jiansong Wang ,  Thomas Anschutz

IPC: H04W36/08 ,  H04L5/00 ,  H04W36/00 ,  H04W8/22 ,  H04L12/24

Abstract: A wireless network for mobile communications has a connectionless framework using native internet protocol (IP). In this connectionless framework, packet routing may be based on user endpoint (UE) physical IP address, which is associated with the prefix of an associated access node (e.g. eNB). In addition to using the connectionless-IP framework for the traffic flow carried by one access point (e.g. eNB) at a time, advanced mobile call processing features, such as carrier aggregation and dual connectivity, are enhanced to leverage the packet-oriented connectionless radio access network and wireless core network architecture by using the SDN architecture and a wireless network specific software-defined network controller.

公开(公告)号：US10313943B2

公开(公告)日：2019-06-04

申请号：US15846974

申请日：2017-12-19

Applicant: AT&T Mobility II LLC ,  AT&T INTELLECTUAL PROPERTY I, L.P.

Inventor： Rick Tipton ,  Mark Austin ,  Zhi Cui ,  Alain Ohana

IPC: H04W36/14 ,  H04W24/02 ,  H04W36/22 ,  H04W36/30 ,  H04W28/08 ,  H04L12/54 ,  H04L12/24

Abstract: Intelligent radio access technology sensing and selection are applied in a dynamic traffic steering network. Network characteristics and network policies are determined. A server sends network characteristics and network policies to user equipment devices. User equipment devices can determine a radio access technology to connect to based on network policies and network characteristics. Further, it can be determined how to select user equipment devices for connection to a radio access network via a radio access technology. User equipment devices can dynamically select a radio access network for connection based on real-time or near real-time radio access network conditions. A self-organizing network can monitor and determine radio access network conditions and the radio access network conditions can be sent to user equipment devices in given cellular broadcast area.