Method of providing seamless reception of broadcast service in UE

1. A method of providing seamless reception of multimedia broadcast multicast services (MBMS) in a user equipment (UE) having multiple radio frequency (RF) terminals, the method comprising:

receiving MBMS from a primary cell (P-Cell), through a first RF terminal in the UE;

receiving a command through the first RF terminal while receiving the MBMS;

in response to receiving the command through the first RF terminal, configuring the MBMS on a second RF terminal by configuring the second RF terminal with P-Cell parameters used for receiving the MBMS through the first RF terminal; and

initiating reception of the MBMS from a non-primary cell through the second RF terminal that is configured with the P-Cell parameters used for receiving the MBMS through the first RF terminal,

wherein the non-primary cell includes at least one of a secondary cell and a non-serving cell.

2. The method of claim 1 , wherein configuring the MBMS on the second RF terminal in the UE includes:

configuring the second RF terminal with P-Cell parameters in response to receiving a circuit switched fallback (CSFB) command; and

performing a CSFB procedure from the P-Cell through the first RF terminal in the UE.

3. The method of claim 2 , further comprising:

decoding a system information block (SIB) and an MBMS control channel (MCCH) information on the P-Cell after completion of the CSFB procedure;

determining whether services configured for the P-Cell are the same as those of the MBMS being received from the non-primary cell through the second RF terminal; and

receiving the MBMS through the P-Cell and de-configuring the non-primary cell in response to determining that the services configured for the P-Cell are the same as those of the MBMS being received from the non-primary cell.

4. The method of claim 3 , further comprising:

continuing to receive the MBMS from the non-primary cell through the second RF terminal in response to determining that the services configured for the P-Cell are different from those of the MBMS being received from the non-primary cell.

5. The method of claim 1 , wherein configuring the MBMS on the second RF terminal in the UE includes:

configuring the second RF terminal with P-Cell parameters in response to receiving a mobility command; and

performing a mobility procedure from the P-Cell, through the first RF terminal in the UE.

6. The method of claim 5 , further comprising:

decoding a system information block (SIB) and an MBMS control channel (MCCH) information on the P-Cell after the completion of the mobility procedure through the first RF terminal;

determining whether services configured for the P-Cell are the same as those of the MBMS being received from the non-primary cell through the second RF terminal; and

receiving MBMS through the P-Cell and de-configuring the non-primary cell in response to determining that the services configured for the P-Cell are the same as those of the MBMS being received from the non-primary cell.

7. The method of claim 6 , further comprising:

continuing to receive the MBMS from the non-primary cell through the second RF terminal in response to determining that the services configured for the P-Cell are different from those of the MBMS being received from the non-primary cell.

8. The method of claim 1 , wherein the MBMS is configured on the second RF terminal in the UE during a measurement gap.

9. The method of claim 1 , wherein configuring the MBMS on the second RF terminal to continue receiving the MBMS from the non-primary cell includes:

initiating transition from the first RF terminal to the second RF terminal;

receiving packets through the first RF terminal and the second RF terminal during the transition;

determining duplicate packets received through the first RF terminal and the second RF terminal after the transition; and

deleting the duplicate packets.

10. The method of claim 3 , wherein receiving the MBMS from the P-Cell through the first RF terminal and de-configuring the non-primary cell includes determining that the characteristics of the signal received through the first RF terminal are greater than a pre-determined threshold.

11. The method of claim 4 , wherein continuing to receive the MBMS from the non-primary cell through the second RF terminal includes determining that the characteristics of the signal received through the second RF terminal are greater than a pre-determined threshold.

12. A method of providing seamless reception of multimedia broadcast multicast services (MBMS) in a user equipment (UE), the method comprising:

receiving MBMS from a primary cell (P-Cell), using a first radio frequency (RF) terminal in the UE;

receiving a circuit switched fallback (CSFB) command through the first RF terminal while receiving the MBMS;

configuring a second RF terminal with P-Cell parameters used for receiving the MBMS through the first RF terminal;

initiating reception of the MBMS through the second RF terminal that is configured with the P-Cell parameters used for receiving the MBMS through the first RF terminal;

de-configuring the MBMS being received through the first RF terminal and initiating a CSFB procedure;

determining that MBMS commands are received from an application interface in the UE;

processing the MBMS commands after completion of the CSFB procedure through the first RF terminal; and

resuming MBMS from the P-Cell through the first RF terminal.

13. A user equipment (UE), comprising:

memory; and processor configured to: receive multimedia broadcast multicast services (MBMS) from a primary cell (P-Cell) through a first RF terminal;

receive a command through the first RF terminal while receiving the MBMS;

in response to receiving the command through the first RF terminal, configure the MBMS on a second RF terminal by configuring the second RF terminal with P-Cell parameters used for receiving the MBMS through the first RF terminal; and

initiate reception of the MBMS through the second RF terminal that is configured with the P-Cell parameters used for receiving the MBMS through the first RF terminal to continue receiving the MBMS from a non-primary cell, wherein the non-primary cell includes at least one of a secondary cell and a non-serving cell.

14. The UE of claim 13 , wherein configuring the MBMS service on the second RF terminal of the UE includes: configuring the second RF terminal with P-Cell parameters in response to receiving a circuit switched fallback (CSFB) command; and performing a CSFB procedure from the P-Cell through the first RF terminal in the UE, wherein the MBMS is configured on the second RF terminal of the UE during a measurement gap.

15. The UE of claim 14 , wherein the UE is further configured to:

decode a system information block (SIB) and an MBMS control channel (MCCH) information on the P-Cell after completion of the CSFB procedure;

determine whether services configured for the P-Cell are the same as those of the MBMS being received from the non-primary cell through the second RF terminal; and

receive the MBMS through the P-Cell and de-configuring the non-primary cell in response to determining that the services configured for the P-Cell are the same as those of the MBMS being received from the non-primary cell, and

wherein receiving the MBMS from the P-Cell through the first RF terminal and de-configuring the non-primary cell includes determining that the characteristics of the signal received through the first RF terminal are greater than a pre-determined threshold.

16. The UE of claim 15 , wherein the UE is further configured to:

continue receiving the MBMS from the non-primary cell through the second RF terminal in response to determining that the services configured for the P-Cell are different from those of the MBMS being received from the non-primary cell, and

wherein continuing to receive the MBMS from the non-primary cell through the second RF terminal includes determining that the characteristics of the signal received through the second RF terminal are greater than a pre-determined threshold.

17. The UE of claim 13 , wherein configuring the MBMS service on the second RF terminal includes:

configuring the second RF terminal with the P-Cell parameters in response to receiving a mobility command; and

performing a mobility procedure from the P-Cell through the first RF terminal of the UE.

18. The UE of claim 17 , wherein the UE is further configured to:

decode a system information block (SIB) and an MCCH information on a P-Cell after the completion of a mobility procedure through the first RF terminal;

determine whether services configured for the P-Cell are the same as those of the MBMS being received from the non-primary cell through the second RF terminal; and

receive MBMS through the P-Cell and de-configuring the non-primary cell in response to determining that the services configured for the P-Cell are the same as those of the MBMS being received from the non-primary cell.

19. The UE of claim 18 , wherein the UE is further configured to:

continue receiving the MBMS from the non-primary cell through the second RF terminal in response to determining that the services configured for the P-Cell are different from those of the MBMS being received from the non-primary cell.

20. The UE of claim 13 , wherein configuring the MBMS on the second RF terminal to continue receiving the MBMS from the non-primary cell includes:

initiating a transition from the first RF terminal to the second RF terminal;

receiving packets through the first RF terminal and the second RF terminal during the transition;

determining duplicate packets received through the first RF terminal and the second RF terminal after the transition; and

deleting the duplicate packets.