Paging for converged enterprise private radio service and Wi-Fi access deployments

Patent metadata

Field	Value
Publication number	US-10880862-B2
Application number	US-201916393608-A
Country	US
Kind code	B2
Filing date	Apr 24, 2019
Priority date	Apr 24, 2019
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

Abstract

Paging for converged enterprise private Long-term Evolution (LTE) radio service and Wi-Fi access deployments may be provided. First, a notification in response to a User Equipment (UE) device being determined to be in an idle state may be received at a Wireless Local Area Network (WLAN) controller. A Citizens Broadband Radio Service (CBRS) Access Point (AP) to page in order to place the UE in a connected state may then be determined. Next, a paging request may be sent to the determined CBRS AP.

First claim

What is claimed is:

1. A method comprising:
receiving, at a Wireless Local Area Network (WLAN) controller, a notification in response to a User Equipment (UE) device being determined to be in an idle state;
determining a Citizens Broadband Radio Service (CBRS) Access Point (AP) to page in order to place the UE in a connected state wherein determining the CBRS AP to page comprises:
determining that the UE is currently associated with a Wi-Fi AP, and
determining the CBRS AP to be a last CBRS AP the UE was associated with in response to determining that the UE is associated with the Wi-Fi AP; and

sending a paging request to the determined CBRS AP.

2. The method of claim 1 , further comprising:
receiving, at a Fabric Border (FB) node, a packet destine to the UE; and
sending a query to a data base for a Routing Locator (RLOC) for the UE based on an identifier of the UE.

3. The method of claim 2 , wherein receiving the notification comprises receiving the notification in response to the query indicating a negative acknowledgement.

4. The method of claim 2 , wherein the data base comprises a Map Server/Map Resolver (MSMR) database.

5. The method of claim 4 , further comprising:
receiving a response from the CBRS AP indicating that the UE is in the connected state; and
updating a local cache at the FB node and the database that the UE is in the connected state.

6. A method comprising:
receiving, at a Wireless Local Area Network (WLAN) controller, a notification in response to a User Equipment (UE) device being determined to be in an idle state;
determining a plurality of Citizens Broadband Radio Service (CBRS) Access Points (APs) to page in order to place the UE in an connected state;
sending a paging request to respective ones of the determined plurality of CBRS APs until a service request message is respectively received in response;
receiving, at a Fabric Border (FB) node, a packet destine for the UE;
sending a query to a data base for a Routing Locator (RLOC) for the UE based on an identifier of the UE;
receiving a response from the CBRS AP indicating that the UE is in the connected state; and
updating a local cache at the FB node and the database that the UE is in the connected state wherein the data base comprises a Map Server/Map Resolver (MSMR) database.

7. The method of claim 6 , wherein receiving the notification comprises receiving the notification in response to the query indicating a negative acknowledgement.

8. The method of claim 6 , wherein determining the plurality of CBRS AP to page comprises:
determining that the UE is not currently associated with a Wi-Fi AP; and
determining the plurality of CBRS APs based on their proximity to a last known Wi-Fi AP that the UE was associated with.

9. The method of claim 6 , wherein determining the plurality of CBRS APs to page comprises determining the plurality of CBRS APs to be all the CBRS AP that are known to the WLAN controller.

10. An apparatus comprising:
a memory; and
a processing unit coupled to the memory storage, wherein the processing unit is operative to:
receive a notification in response to a User Equipment (UE) device being determined to be in an idle state, wherein the processing unit being operative to receive the notification comprises the processing unit being operative to receive the notification in response to a query to a data base for a Routing Locator (RLOC) for the UE based on an identifier of the UE indicating a negative acknowledgement;
determine a Citizens Broadband Radio Service (CBRS) Access Point (AP) to page in order to place the UE in a connected state; and
send a paging request to the determined CBRS AP.

11. The apparatus of claim 10 , wherein the processing unit being operative to determine the CBRS AP to page comprises the processing unit being operative to:
determine that the UE is currently associated with a Wi-Fi AP; and
determine the CBRS AP to be a last CBRS AP the UE was associated with in response to determining that the UE is associated with the Wi-Fi AP.

12. The apparatus of claim 10 , wherein the processing unit being operative to determine the CBRS AP to page comprises the processing unit being operative to:
determine that the UE is currently associated with a Wi-Fi AP; and
determine the CBRS AP based on the CBRS's proximity to the Wi-Fi AP.

13. The apparatus of claim 10 , wherein the processing unit being operative to determine the CBRS AP to page comprises the processing unit being operative to determine the CBRS AP based on the CBRS's proximity to a Wi-Fi AP that the UE last associated with.

Assignees

• Cisco Tech Inc

Inventors

• Grayson Mark
• Srivastava Vimal
• Gundavelli Srinath
• Murthy Shree
• Chhabria Sonal

Classifications

• H04W68/005 Primary

  Transmission of information for alerting of incoming communication · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title

• H04W88/08

  Access point devices · CPC title

• H04W88/02

  Terminal devices · CPC title