Apparatus and methods for intelligent scheduling in hybrid networks based on client identity

• US 10,327,196 B2
• Filed: 04/09/2013
• Issued: 06/18/2019
• Est. Priority Date: 04/09/2012
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Apple Inc.
• Inventors: Yerrabommanahalli, Vikram B., Vashi, Prashant H., Shi, Jianxiong, Vallath, Sreevalsan
• Primary Examiner(s): Lai, Andrew
• Assistant Examiner(s): Andrews, Hoyet H
• Application Number:
  US13/859,657
• Publication Number:
  US 20130294417A1
• Time in Patent Office: 2,261 Days
• CPC Class Codes: H04W 40/24 Connectivity information management, e.g. connectivity discovery or connectivity update
• CPC Class Codes: H04W 48/18 Selecting a network or a communication service
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

Methods and apparatus for intelligent scheduling in hybrid networks based on client identity. For example, in one embodiment, the hybrid networks are cellular networks (e.g., LTE and CDMA 1X), and a cellular device uses a single-radio solution to support circuit-switched calls on a CDMA 1X network and packet-switched calls on LTE. Periodically, the cellular device tunes away from LTE and monitors CDMA 1X activity, and vice versa. The LTE network can infer the cellular device'"'"'s tune away schedule, based on the device'"'"'s identity, and the paging schedule algorithm of the CDMA 1X network.

Claims

1. A network apparatus configured to operate in a Long Term Evolution (LTE) network, the network apparatus comprising:

a processor;

a wireless interface communicatively coupled with the processor; and

a non-transitory computer readable storage device communicatively coupled with the processor and storing instructions that, when executed by the processor, cause the network apparatus to;

determine whether a client device, which is in communication with the network apparatus via the wireless interface, is capable of hybrid operation on at least two distinct wireless networks, which operate using different radio access technologies (RATs), wherein;

one of the at least two distinct wireless networks includes a Code Division Multiple Access 2000 (CDMA2000) wireless network from which the client device monitors pages by conducting tune-away events, the LTE network and the CDMA2000 wireless network operate independently, and the network apparatus is unaware of the client device'"'"'s connections to the CDMA2000 wireless network, and

determination is based at least in part on a client identity of the client device, the client identity including at least one of;

(a) user-related information and subscription-related information corresponding to the client device, wherein at least one of user-related information and the subscription-related information is available from a Home Subscriber Server (HSS) belonging to the LTE network, or

(b) device-specific information comprising at least one of an International Mobile Equipment Identity (IMEI), a media access control (MAC address), or original equipment manufacturer (OEM) information specific to the client device; and

when the client device is determined to be capable of hybrid operation;

identify a CDMA2000 wireless network with which the client device can communicate;

determine at least one scheduled tune-away event to be conducted by the client device to monitor pages from the CDMA2000 wireless network with which the client device can communicate, wherein the at least one scheduled tune-away event is determined based at least in part on an identifier of the client device and a schedule of tune-away events that is provided to the network apparatus by a mobile management entity (MME) of the LTE network; and

during the at least one scheduled tune-away event, place an operational aspect of the client device, the operational aspect being associated with scheduling of network resources in the LTE network, in a suspended state in order to avoid loss of data from the LTE network, wherein the at least one scheduled tune-away event comprises the client device tuning away from the LTE network to the CDMA2000 wireless network.

2. The network apparatus of claim 1, wherein the identifier of the client device comprises a Mobile Identification Number (MIN).

3. The network apparatus of claim 1, wherein the suspended state of the client device includes one or more of:

halting data service to the client device, or

storing one or more software contexts associated with the suspended state of the client device.

4. The network apparatus of claim 1, wherein:

the suspended state is maintained for a set period of time, and

after expiration of the set period of time, the network apparatus returns the operational aspect of the client device to a normal state of operation.

5. The network apparatus of claim 1, wherein the suspended state is maintained until a prescribed message or communication is received from the client device.

6. The network apparatus of claim 1, wherein the determination as to whether the client device is capable of hybrid operation is further based in part on receipt from the client device of a Quality of Service (QoS) Class Identifier (QCI) reserved by a Home Subscriber Server (HSS) of the LTE network for identification of hybrid type client devices.

7. The network apparatus of claim 1, wherein the MME determines the schedule of tune-away events based at least in part on communication of the CDMA2000 wireless network paging schedule provided by the client device.

8. The network apparatus of claim 7, wherein the communication of the CDMA2000 wireless network paging schedule comprises a paging slot and a Slot Cycle Index (SCI).

9. The network apparatus of claim 1, wherein the OEM information comprises one or more of:

a hardware model number or a version number for the client device.

10. The network apparatus of claim 1, wherein the OEM information comprises a software token or a certificate issued by the OEM of the client device.

11. A method for scheduling by a network apparatus of a Long Term Evolution (LTE) network based on client device identity, the method comprising:

by the network apparatus;

determining whether a client device, which is in communication with the network apparatus via a wireless interface, is capable of hybrid operation on at least two distinct wireless networks, which operate using different radio access technologies (RATs), wherein;

one of the at least two distinct wireless networks includes a Code Division Multiple Access 2000 (CDMA2000) wireless network from which the client device monitors pages by conducting tune-away events, the LTE network and the CDMA2000 wireless network operate independently, and the network apparatus is unaware of the client device'"'"'s connections to the CDMA2000 wireless network, and

determination is based at least in part on the client identity of the client device, the client identity including at least one of;

(a) user-related information and subscription-related information corresponding to the client device, wherein at least one of user-related information and the subscription-related information is available from a Home Subscriber Server (HSS) belonging to the LTE network, or

(b) an device-specific information comprising at least one of an International Mobile Equipment Identity (IMEI), a media access control (MAC address), or original equipment manufacturer (OEM) information specific to the client device; and

when the client device is determined to be capable of hybrid operation;

receiving, from a mobile management entity (MME) of the wireless network, a paging schedule of a second wireless network for the client device, the paging scheduled being based on an identifier of the client device;

determining, based at least in part on the received paging schedule of the second wireless network and the identifier of the client device, a schedule for one or more tune-away events of the client device from the wireless network to the second wireless network, wherein the one or more tune-away events enable the client device to determine whether the client device is being paged by the second wireless network; and

during the one or more tune-away events, suspending at least one aspect of an operation of the client device associated with scheduling of network resources in the wireless network in order to avoid loss of data from the wireless network.

12. The method of claim 11, wherein the determination as to whether the client device is capable of hybrid operation is further based in part on an identification of a user or a subscriber identity associated with the client device.

13. The method of claim 11, wherein the second wireless network comprises a Code Division Multiple Access 2000 network, and the identifier of the client device comprises a Mobile Identification Number (MIN) associated with the client device.

14. The method of claim 13, wherein the network apparatus determines a paging slot and a slot cycle index based on the MIN associated with the client device.

15. The method of claim 11, wherein the determination as to whether the client device is capable of hybrid operation is further based in part on receipt from the client device of a Quality of Service (QoS) Class Identifier (QCI) reserved by a Home Subscriber Server (HSS) of the wireless network for identification of hybrid type client devices.

16. The method of claim 11, wherein the OEM information comprises one or more of:

a hardware model number or a version number for the client device.

17. The method of claim 11, wherein the OEM information comprises a software token or a certificate issued by the OEM of the client device.

18. A non-transitory computer readable medium storing computer-readable instructions thereon that, when executed by a host device of a Long Term Evolution (LTE) network, cause the host device to:

determine whether a client device that is in communication with the host device via a wireless interface is capable of hybrid operation on at least two distinct wireless networks that operate using different wireless technologies, wherein;

one of the at least two distinct wireless networks includes a Code Division Multiple Access 2000 (CDMA2000) wireless network from which the client device monitors pages by conducting tune-away events, the LTE network and the CDMA2000 wireless network operate independently, and the host device is unaware of the client device'"'"'s connections to the CDMA2000 wireless network, and

determination is based at least in part on a client identity of the client device, the client identity including at least one of;

(a) user-related information and subscription-related information corresponding to the client device, wherein at least one of user-related information and the subscription-related information is available from a Home Subscriber Server (HSS) belonging to the LTE network, or

(b) device-specific information comprising at least one of an International Mobile Equipment Identity (IMEI), a media access control (MAC address), or original equipment manufacturer (OEM) information specific to the client device; and

when the client device is determined to be capable of hybrid operation;

identify at least one other wireless technology that the client device can utilize;

determine at least one scheduled tune-away event to be conducted by the client device to monitor pages from a circuit-switched network with which the client device can communicate, wherein the at least one scheduled tune-away event is determined based at least in part on an identifier of the client device and a schedule of tune-away events that is provided to the host device by a mobile management entity (MME) of a packet-switched network; and

during the at least one scheduled tune-away event, suspend at least one aspect of operation between the client device and the host device associated with scheduling of network resources in the packet-switched network in order to avoid loss of data from the packet-switched network, wherein the at least one scheduled tune-away event comprises the client device tuning away from the packet-switched network to the circuit-switched network.

19. The non-transitory computer readable medium of claim 18, wherein the determination as to whether the client device is capable of hybrid operation is further based in part on receipt from the client device of a Quality of Service (QoS) Class Identifier (QCI) reserved by a Home Subscriber Server (HSS) of the packet-switched network for identification of hybrid type client devices.

20. The non-transitory computer readable medium of claim 18, wherein the OEM information comprises one or more of:

a hardware model number or a version number for the client device, or a software token or a certificate issued by the OEM of the client device.