Methods and apparatus for providing broadcast content over a unicast channel

• US 8,897,256 B2
• Filed: 01/05/2010
• Issued: 11/25/2014
• Est. Priority Date: 04/07/2009
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Cherian, George, Guo, Jiming, Tinnakornsrisuphap, Peerapol, Attar, Rashid A., Song, Bongyong, Fan, Mingxi, Patwardhan, Ravindra M.
• Primary Examiner(s): HOANG, THAI D
• Application Number:
  US12/652,242
• Publication Number:
  US 20100322196A1
• Time in Patent Office: 1,785 Days
• Field of Search: 370331-334, 455436-444
• US Class Current: 370/331
• CPC Class Codes: H04L 12/1854 with non-centralised forwarding system, e.g. chaincast
• CPC Class Codes: H04L 12/1877 Measures taken prior to transmission
• CPC Class Codes: H04L 12/189 in combination with wireless systems selective distribution or broadcast in wireless communication networks H04W4/06
• CPC Class Codes: H04W 72/30 Resource management for broadcast services

Abstract

A method and apparatus providing broadcast content over a unicast channel. The method and apparatus may be configured to determine whether content received using a broadcast type format is to be transmitted using a unicast type format, and to map the content to a unicast reservation upon a determination that the content is to be transmitted using the unicast type format.

Claims

1. A method for providing broadcast content over a unicast channel, the method comprising:

determining that content received using a broadcast type format is to be transmitted using a unicast type format;

mapping the content to a unicast reservation upon a determination that the content is to be transmitted using the unicast type format; and

identifying, in the unicast type format and using at least one broadcast protocol identifier, the content received using the broadcast type format, wherein the broadcast protocol identifier corresponds to a framing format used in the broadcast type format.

2. The method of claim 1 further comprising:

receiving, from a broadcast service network, the content using the broadcast type format; and

transmitting, to an access terminal, the content using the unicast type format including the at least one broadcast protocol identifier.

3. The method of claim 2 further comprising:

transmitting, to the access terminal, a second instance of the content using the broadcast type format concurrently with the content being transmitted using the unicast type format for a predefined transition period.

4. The method of claim 2, further comprising:

initiating a pre-setup procedure with an access terminal to register the unicast reservation, before transmitting the content using the unicast type format, to configure the access terminal to receive broadcast type format content using the unicast type format; and

receiving a request from the access terminal to activate the unicast reservation and to receive the content using the unicast reservation.

5. The method of claim 2, further comprising:

determining whether an inter base station controller (BSC) handover of service is to be performed; and

upon a determination that the inter BSC handover of service is to be performed, transmitting instructions to a target BSC to perform a registration process with the broadcast service network on behalf of the access terminal.

6. The method of claim 1, wherein the determining further comprises:

obtaining identification of a number of access terminals to receive the content; and

if the number of access terminals to receive the content is less than a predetermined broadcast threshold, generating instructions for the content to be transmitted using the unicast type format.

7. The method of claim 6, further comprising:

receiving, from a broadcast service network, the content using the broadcast type format; and

transmitting, to an access terminal, the content using the unicast type format including the at least one broadcast protocol identifier.

8. The method of claim 6, wherein the framing format used in the broadcast type format comprises either packet based framing or High-Level Data Link Control (HDLC) framing, and wherein mapping the content to the unicast reservation is further configured to determine, based on the broadcast type format, to map to an existing unicast reservation or to create a new unicast reservation.

9. The method of claim 1, wherein the determining further comprises:

determining that an access terminal receiving content using the broadcast type format is within a coverage threshold region, wherein the coverage threshold region is defined as predefined boundary region beyond which content may not be received using a broadcast type format; and

upon a determination that the access terminal in within the coverage threshold region, generating instructions for the content to be transmitted using the unicast type format.

10. The method of claim 9, further comprising:

receiving, from a broadcast service network, the content using the broadcast type format; and

transmitting, to an access terminal, the content using the unicast type format including the at least one broadcast protocol identifier.

11. The method of claim 9, wherein the framing format used in the broadcast type format comprises either packet based framing or High-Level Data Link Control (HDLC) framing, and wherein mapping the content to the unicast reservation further comprises determining, based on the broadcast type format, to map to an existing unicast reservation or to create a new unicast reservation.

12. The method of claim 1, wherein the framing format used in the broadcast type format comprises either packet based framing or High-Level Data Link Control (HDLC) framing, and wherein mapping the content to the unicast reservation further comprises determining, based on the broadcast type format, to map to an existing unicast reservation or to create a new unicast reservation.

13. The method of claim 1, wherein the at least one broadcast protocol identifier maps the content to a RLP flow used in the unicast type format.

14. An apparatus, comprising:

a content transmission selection module configured to;

determine that content received using a broadcast type format is to be transmitted using a unicast type format;

map the content to a unicast reservation upon a determination that the content is to be transmitted using the unicast type format; and

identify, in the unicast type format and using at least one broadcast protocol identifier, the content received using the broadcast type format, wherein the broadcast protocol identifier corresponds to a framing format used in the broadcast type format.

15. The apparatus of claim 14, further comprising:

a communication module configured to;

receive, from a broadcast service network, the content using the broadcast type format; and

transmit, to an access terminal, the content using the unicast type format including the at least one broadcast protocol identifier.

16. The apparatus of claim 15, wherein the communication module is further configured to:

transmit, to the access terminal, a second instance of the content using the broadcast type format concurrently with the content being transmitted using the unicast type format for a predefined transition period.

17. The apparatus of claim 15, wherein the content transmission selection module is further configured to:

initiate a pre-setup procedure with an access terminal to register the unicast reservation, before transmitting the content using the unicast type format, to configure the access terminal to receive broadcast type format content using the unicast type format; and

receiving a request from the access terminal to activate the unicast reservation and to receive the content using the unicast reservation.

18. The apparatus of claim 15, wherein the content transmission selection module is further configured to determine whether an inter base station controller (BSC) handover of service is to be performed;

and

wherein the communication module is further configured to transmit instructions to a target BSC to perform a registration process with the broadcast service network on behalf of the access terminal upon a determination that the inter BSC handover is to be performed.

19. The apparatus of claim 14, wherein the framing format used in the broadcast type format comprises either packet based framing or High-Level Data Link Control (HDLC) framing, and wherein mapping the content to the unicast reservation further comprises determining, based on the broadcast type format, to map to an existing unicast reservation or to create a new unicast reservation.

20. The apparatus of claim 14, wherein the apparatus includes at least one of:

a base station or a base station controller.

21. The apparatus of claim 14, wherein the at least one broadcast protocol identifier maps the content to a RLP flow used in the unicast type format.

22. An apparatus, comprising:

a content transmission selection module configured to;

determine whether content received using a broadcast type format is to be transmitted using a unicast type format;

obtain a number of access terminals to receive the content; and

if the number of access terminals to receive the content is less than a predetermined broadcast threshold, generate instructions for the content to be transmitted using the unicast type format; and

upon a determination that the content is to be transmitted using the unicast type format, map the content to a unicast reservation, wherein the content received using the broadcast type format is identified in the unicast type format using at least one broadcast protocol identifier.

23. The apparatus of claim 22, further comprising:

a communication module configured to;

receive, from a broadcast service network, the content using the broadcast type format; and

transmit, to an access terminal, the content using the unicast type format including the at least one broadcast protocol identifier.

24. The apparatus of claim 22, wherein the framing format used in the broadcast type format comprises either packet based framing or High-Level Data Link Control (HDLC) framing, and wherein mapping the content to the unicast reservation further comprises determining, based on the broadcast type format, to map to an existing unicast reservation or to create a new unicast reservation.

25. An apparatus, comprising:

a content transmission selection module configured to;

determine whether content received using a broadcast type format is to be transmitted using a unicast type format;

determine that an access terminal receiving content using the broadcast type format is within a coverage threshold region, wherein the coverage threshold region is defined as predefined boundary region beyond which content may not be received using a broadcast type format;

upon a determination that the access terminal in within the coverage threshold region, generate instructions for the content to be transmitted using the unicast type format; and

upon a determination that the content is to be transmitted using the unicast type format, map the content to a unicast reservation, wherein the content received using the broadcast type format is identified in the unicast type format using at least one broadcast protocol identifier.

26. The apparatus of claim 25, further comprising:

a communication module configured to;

receive, from a broadcast service network, the content using the broadcast type format; and

transmit, to an access terminal, the content using the unicast type format including the at least one broadcast protocol identifier.

27. The apparatus of claim 25, wherein the framing format used in the broadcast type format comprises either packet based framing or High-Level Data Link Control (HDLC) framing, and wherein mapping the content to the unicast reservation further comprises determining, based on the broadcast type format, to map to an existing unicast reservation or to create a new unicast reservation.

28. A method for receiving content by a wireless communications device (WCD), the method comprising:

monitoring, by the WCD, content from a serving base station using a broadcast type format;

detecting a target base station with a signal strength greater than a handover threshold value;

determining whether the target base station is operable to communicate using the broadcast type format;

upon a determination that the target base station is not operable to communicate using the broadcast type format, transmitting a request to the serving base station to transition content communication from using the broadcast type format to using a unicast type format;

transitioning content communication from the broadcast type format to the unicast type format in response to a command received from the serving base station transmitted by the serving base station in response to the transmitted request; and

processing a handover command from the serving base station to the target base station, wherein the handover includes maintaining content communication using the unicast type format.

29. A wireless communications device, comprising:

a transceiver operable to;

monitor content from a serving base station using a broadcast type format;

a handover module, associated with a processor, and operable to;

detect a target base station with a signal strength greater than a handover threshold value; and

determine whether the target base station is operable to communicate using the broadcast type format;

wherein the transceiver is further operable to transmit a request to the serving base station to transition content communication from using the broadcast type format to using a unicast type format upon a determination that the target base station is not operable to communicate using the broadcast type format; and

wherein the handover module is further operable to;

transition content communication from the broadcast type format to the unicast type format in response to a command received from the serving base station transmitted by the serving base station in response to the transmitted request; and

process a handover command from the serving base station to the target base station, wherein the handover includes maintaining content communication using the unicast type format.