Combined CDMA multi-service carrier and TDMA/CDMA packet carrier

• US 6,879,580 B1
• Filed: 12/28/1999
• Issued: 04/12/2005
• Est. Priority Date: 11/29/1999
• Status: Expired due to Term

• Current Assignee: Optis Wireless Technology, LLC (Brevet Capital)
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Djuphammar, Hakan O., Nasser, Mohamad I., Basilier, Henrik
• Primary Examiner(s): Phan, Man U.
• Assistant Examiner(s): NGUYEN, TOAN D
• Application Number:
  US09/474,056
• Time in Patent Office: 1,932 Days
• Field of Search: 370/350, 370/352, 370/353, 370/355, 370/356, 370/459
• US Class Current: 370/352
• CPC Class Codes: H04W 48/20 Selecting an access point

Abstract

The present invention provides systems and methods for coordinating calls within hybrid cells that support both an all services carrier and a best-efforts carrier, wherein the all services carrier supports real-time and non-real-time services and the best efforts carrier supports only non-real-time services. In one embodiment of the invention, the all services carrier is a 1×RTT carrier and the best-efforts carrier is an HDR carrier. Calls may be placed on either carrier and transferred between the carriers as circumstances dictate. In addition, the present invention provides systems and methods to dynamically determine the most appropriate carrier for a given call.

Claims

1. A method of wireless communication, comprising:

(a) synchronizing, during an idle state, a mobile station to a default carrier selected from a group comprising an all-services carrier and a best-efforts carrier, the all-services carrier supporting real-time and non-real-time services, the best-efforts carrier supporting only non-real-time services;

(b) notifying the mobile station to synchronize with a remaining carrier;

(c) synchronizing the mobile station to the remaining carrier;

(d) connecting an incoming call to the mobile station over the remaining carrier; and

(e) synchronizing the mobile station to the default carrier upon completion of the incoming call.

2. The method of claim 1, wherein the default carrier is a 1×

RTT carrier, the remaining carrier is a HDR carrier, and the call is a data call.

3. The method of claim 1, wherein the default carrier is a HDR carrier, the remaining carrier is a 1×

RTT carrier, and the call is a voice call.

4. The method of claim 1, wherein prior to notifying the mobile station to synchronize with the remaining carrier, the mobile station has an active voice call in progress over the default carrier, the active voice call being placed on hold during steps (c), (d) and (e), and further wherein the default carrier is a 1×

RTT carrier.

5. The method of claim 1, wherein notifying the mobile station to synchronize with the remaining carrier includes notifying the mobile station to synchronize with a HDR carrier because of the incoming call, said incoming call being a data call, and further comprising:

placing an active voice call over the default carrier on hold;

accepting the data call over the HDR carrier; and

reconnecting the active voice call.

6. A wireless communication network configured to allow a call to be selectively carried over either an all-services carrier or a best-efforts carrier, the all-services carrier supporting real-time and non-real-time services, the best-efforts carrier supporting only non-real-time services, said wireless communication network further being configured to:

connect a data call to a mobile station over the best-efforts carrier;

if a specified condition is detected while the data call is in progress,

synchronize the mobile station to the all-services carrier; and

continue the data call over the all-services carrier.

7. The communication network of claim 6, wherein the all-services carrier is a 1×

RTT carrier, and the best-efforts carrier is a HDR carrier.

8. The communication network of claim 6, wherein the best-efforts carrier is a packet data carrier.

9. The communication network of claim 6, wherein the specified condition is detected by examining transmitted packet data.

10. The communication network of claim 6, wherein the specified condition is detected by an Application Programming Interface within the mobile station.

11. A wireless communication network configured to allow a call to be selectively carried over either an all-services carrier or a best-efforts carrier, the all-services carrier supporting real-time and non-real-time services, the best-efforts carrier supporting only non-real-time services, the network further configured to:

synchronize, during an idle state, a mobile station to a default carrier comprising either the all-services carrier or the best-efforts carrier;

notify the mobile station to synchronize with a remaining carrier upon notice of an incoming call at a mobile station controller;

synchronize the mobile station to the remaining carrier upon receipt of the incoming call;

connect the incoming call to the mobile station over the remaining carrier; and

synchronize the mobile station to the default carrier upon completion of the call.

12. The communication network of claim 11, wherein the default carrier is a 1×

RTT carrier, the remaining carrier is a HDR carrier, and the call is a data call.

13. The communication network of claim 11, wherein the default carrier is a HDR carrier, the remaining carrier is a 1×

RTT carrier, and the call is a voice call.

14. The communication network of claim 11, wherein prior to notifying the mobile station to synchronize with the remaining carrier, the mobile station has an active voice call in progress over the default carrier, and the network is configured to place the active voice call on hold while the mobile station is synchronized to the remaining carrier.

15. The communication network of claim 14, wherein the default carrier is a 1×

RTT carrier, the remaining carrier is a HDR carrier, and the call is a data call.

16. The communication network of claim 11, wherein the network is further configured to:

transfer the incoming voice call to the remaining carrier;

wherein the incoming call is a voice call; and

accept the voice call over the remaining carrier.

17. The communication network of claim 11, wherein the network is further configured to:

place an active voice call over default carrier on hold;

accept the incoming call over the remaining carrier, wherein the incoming call is a data call; and

reconnecting the active voice call.

18. A method of wireless communication, comprising:

providing a hybrid network, the hybrid network enabling a call to be selectively carried over either a 1×

RTT carrier or an HDR carrier;

connecting a data call over the HDR carrier;

determining that the data call should be carried over the 1×

RTT carrier;

synchronizing the mobile station to the 1×

RTT carrier; and

continuing the data call over the 1×

RTT carrier.

19. The method of claim 18, wherein the determining step comprises examining transmitted packet data.

20. The method of claim 18, wherein the determining step is performed by an Application Programming Interface within the mobile station.