Assignment and handover in a radio communication network

• US 10,645,620 B2
• Filed: 07/24/2018
• Issued: 05/05/2020
• Est. Priority Date: 12/20/2007
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Kampmann, Dirk, Hellwig, Karl, Schliwa-Bertling, Paul
• Primary Examiner(s): Ton, Dang T
• Application Number:
  US16/044,143
• Publication Number:
  US 20180332510A1
• Time in Patent Office: 651 Days
• Field of Search: 370429
• CPC Class Codes: H04W 36/0072 of resource information of target access point
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/29 between an access point and the access point controlling device
• CPC Class Codes: H04W 76/22 Manipulation of transport tunnels
• CPC Class Codes: H04W 92/14 between access point controllers and backbone network device

Abstract

Systems and methods related to performing an assignment and a handover in a radio communication network are provided. In one exemplary embodiment, a method performed by a Mobile Switching Center (MSC) of a radio communication network may include seizing resources for a Time Division Multiplexed (TDM) bearer and an Internet Protocol (IP) bearer for use on a terrestrial A-interface of the radio communication network for an activity to be performed by a target Base Station Controller (BSC) of the radio communication network. Further, the method may include sending, to the target BSC, an indication that requests the activity be performed by the target BSC and that also identifies the seized resources for the TDM bearer and the IP bearer for use on the terrestrial A-interface for the activity.

Claims

1. A method performed by a Mobile Switching Center (MSC) of a radio communication network, comprising:

seizing resources for a Time Division Multiplexed (TDM) bearer and an Internet Protocol (IP) bearer for use on a terrestrial A-interface of the radio communication network for an activity to be performed by a target Base Station System (BSS) of the radio communication network;

sending, to the target BSS, an indication that identifies the seized resources for the TDM bearer and the IP bearer for use on the terrestrial A-interface for the activity;

receiving, from the target BSS, an acknowledgement that indicates which bearer is selected for use on the terrestrial A-interface; and

determining that one of the TDM bearer and the IP bearer is selected based on the acknowledgement.

2. The method of claim 1, further comprising:

releasing an unselected one of the TDM bearer and the IP bearer for use on the terrestrial A-interface responsive to said determining.

3. The method of claim 1, further comprising:

receiving, from a source BSS of the radio communication network, an indication that the activity is required; and

wherein said seizing and said sending is responsive to receiving the activity required indication.

4. The method of claim 1, wherein the activity is one of a handover and an assignment.

5. The method of claim 1, wherein the request indication includes a circuit identifier code (CIC) of a selected TDM circuit with respect to the TDM bearer.

6. The method of claim 1, wherein the request indication includes a transport address of a media gateway (MGw) that will terminate an IP connection with respect to the IP bearer.

7. The method of claim 1, wherein said seizing comprises:

sending, to a media gateway (MGw), a request indication to seize resources for the TDM and IP bearers for use on the terrestrial A-interface for the activity; and

in response to sending the request indication, receiving, from the MGw, a reply indication that identifies the seized resources for the TDM bearer and the IP bearer for use on the terrestrial A-interface for the activity.

8. A Mobile Switching Center (MSC) for a radio communication network, comprising:

a processing circuit configured to;

seize resources for a Time Division Multiplexed (TDM) bearer and an Internet Protocol (IP) bearer for use on a terrestrial A-interface of the radio communication network for an activity to be performed by a target Base Station System (BSS) of the radio communication network;

send, to the target BSS, an indication that identifies the seized resources for the TDM bearer and the IP bearer for use on the terrestrial A-interface for the activity;

receive, from the target BSS, an acknowledgement that indicates which bearer is selected for use on the terrestrial A-interface; and

determine that one of the TDM bearer and the IP bearer is selected based on the acknowledgement.

9. The MSC of claim 8, further comprising:

a network interface circuit operationally coupled to the processing circuit and through which the request indication is sent.

10. The MSC of claim 8, wherein the processing circuit is further configured to:

release an unselected one of the TDM bearer and the IP bearer for use on the terrestrial A-interface responsive to said determining.

11. The MSC of claim 8, wherein the processing circuit is further configured to:

receive, from a source BSS of the radio communication network, an indication that the activity is required; and

wherein said seizing and said sending is responsive to receiving the activity required indication.

12. The MSC of claim 8, wherein the activity is one of a handover and an assignment.

13. The MSC of claim 8, wherein said seizing includes the processing circuit being further configured to:

send, to a media gateway (MGw), a request indication to seize resources for the TDM and IP bearers for use on the terrestrial A-interface for the activity; and

in response to sending the request indication, receive, from the MGw, a reply indication that identifies the seized resources for the TDM bearer and the IP bearer for use on the terrestrial A-interface for the activity.

14. A method of operating a Base Station System (BSS) of a radio communication network, comprising:

receiving, from a Mobile Switching Center (MSC) of the radio communication network, an indication that identifies seized resources for a Time Division Multiplexed (TDM) bearer and an Internet Protocol (IP) bearer for use on a terrestrial A-interface of the radio communication network for an activity to be performed by the BSS;

selecting one of the TDM bearer and the IP bearer for use on the terrestrial A-interface for the activity;

allocating a radio channel of the radio communication network that is associated with the activity;

sending, to the MSC, an acknowledgement that indicates to the MSC the selected ones of the TDM bearer and the IP bearer for use on the terrestrial A-interface.

15. The method of claim 14, wherein the activity is one of a handover and an assignment.

16. The method of claim 14, wherein the request indication includes a circuit identifier code (CIC) of a selected TDM circuit with respect to the TDM bearer.

17. The method of claim 14, wherein the request indication includes a transport address of a media gateway (MGw) that will terminate an IP connection with respect to the IP bearer.

18. A Base Station System (BSS) of a radio communication network, comprising:

a processing circuit configured to;

receive, from a Mobile Switching Center (MSC) of the radio communication network, an indication that identifies seized resources for a Time Division Multiplexed (TDM) bearer and an Internet Protocol (IP) bearer for use on a terrestrial A-interface of the radio communication network for an activity to be performed by the BSS;

select one of the TDM bearer and the IP bearer for use on the terrestrial A-interface for the activity;

allocate a radio channel of the radio communication network that is associated with the activity;

send, to the MSC, an acknowledgement that indicates to the MSC the selected ones of the TDM bearer and the IP bearer for use on the terrestrial A-interface.

19. The BSS of claim 18, further comprising:

a network interface circuit operationally coupled to the processing circuit and through which the request indication is received.

20. The BSS of claim 18, wherein the activity is one of a handover and an assignment.

21. The BSS of claim 18, wherein the request indication includes a circuit identifier code (CIC) of a selected TDM circuit with respect to the TDM bearer.

22. The BSS of claim 18, wherein the request indication includes a transport address of a media gateway (MGw) that will terminate an IP connection with respect to the IP bearer.