Service processing method and apparatus

1. A service processing method, wherein the method comprises:

sending, by user equipment (UE), a connection setup message to an access network device, wherein the connection setup message comprises first voice session indication information that indicates that the connection setup message is sent due to a Voice over Long Term Evolution (VoLTE) voice session; and

sending, by the UE, a resource scheduling request message to the access network device, and transmitting an uplink data packet according to an uplink transmission resource allocated by the access network device, wherein the uplink transmission resource is allocated by the access network device to the UE when the resource scheduling request message is received by the access network device within a first time period that is associated with a setup duration of a VoLTE voice session after the access network device receives the connection setup message sent by the UE.

2. The method according to claim 1 , wherein the sending, by user equipment UE, a connection setup message to an access network device, wherein the connection setup message comprises first voice session indication information that indicates that the connection setup message is sent due to a VoLTE voice session, comprises:

sending, by the UE, the connection setup message to the access network device, wherein the connection setup message comprises originating voice session indication information that indicates that the connection setup message is sent due to the originating VoLTE voice session.

3. The method according to claim 2 , before the sending, by the UE, the connection setup message to the access network device, further comprising:

receiving, by the UE, a paging message sent by the access network device; and

determining, by the UE, that the paging message comprises second voice session indication information.

4. The method according to claim 1 , wherein the sending, by user equipment UE, a connection setup message to an access network device, wherein the connection setup message comprises first voice session indication information that indicates that the connection setup message is sent due to a VoLTE voice session, comprises:

sending, by the UE, the connection setup message to the access network device, wherein the connection setup message comprises terminated voice session indication information that indicates that the connection setup message is sent due to the terminated VoLTE voice session.

5. The method according to claim 1 , wherein the connection setup message comprises one or more of the following:

an radio resource control (RRC) connection setup request message; or

an RRC connection setup complete message.

6. The method according to claim 1 , wherein the resource scheduling request message comprises one or more of the following:

a schedule request (SR); or

a buffer status report (BSR).

7. An access network device, comprising:

a transceiver, configured to receive a connection setup message sent by user equipment (UE), wherein the connection setup message comprises first voice session indication information that indicates that the connection setup message is sent due to a Voice over Long Term Evolution (VoLTE) voice session; and configured to receive a resource scheduling request message sent by the UE; and

a processor, configured to allocate an uplink transmission resource to the UE if the transceiver receives the resource scheduling request message sent by the UE within a first time period that is associated with a setup duration of a VOLTE voice session after the connection setup message is received.

8. The access network device according to claim 7 , wherein

the transceiver is configured to receive a downlink data packet to be sent to the UE;

the processor is configured to allocate, within a second time period that is after the connection setup message is received, a downlink transmission resource if the transceiver receives the downlink data packet to be sent to the UE; and

the processor is configured to send the downlink data packet to the UE by using the downlink transmission resource.

9. The access network device according to claim 7 , wherein the access network device further comprises a first timer;

the processor is configured to start the first timer after the connection setup message is received, wherein timing duration of the first timer is the first time period; and

the processor is configured to allocate, before the first timer expires, the uplink transmission resource to the UE if the transceiver receives the resource scheduling request message sent by the UE.

10. The access network device according to claim 7 , wherein the access network device further comprises a second timer;

the processor is configured to start the second timer after the connection setup message is received, wherein timing duration of the second timer is the second time period; and

the processor is configured to allocate, before the second timer expires, the downlink transmission resource if the transceiver receives the downlink data packet to be sent to the UE.

11. The access network device according to claim 7 , wherein the processor is configured to:

determine that the downlink data packet is transmitted on a VoLTE voice signaling plane bearer, wherein the VoLTE voice signaling plane bearer is a bearer available for transmission of VoLTE voice session signaling.

12. The access network device according to claim 7 , wherein the transceiver is configured to:

send a paging message to the UE, wherein the paging message comprises second voice session indication information that indicates that the paging message is sent due to a terminated VoLTE voice session.

13. The access network device according to claim 7 , wherein a value of a quality of service class identifier (QCI) of the VoLTE voice signaling plane bearer is 5.

14. The access network device according to claim 7 , wherein the connection setup message comprises one or more of the following:

an radio resource control (RRC) connection setup request message; or

an RRC connection setup complete message.

15. The access network device according to claim 7 , wherein the resource scheduling request message comprises one or more of the following:

a schedule request (SR); or

a buffer status report (BSR).

16. User equipment (UE), comprising:

a transceiver, configured to send a connection setup message to an access network device, wherein the connection setup message comprises first voice session indication information that indicates that the connection setup message is sent due to a Voice over Long Term Evolution (VoLTE) voice session; wherein

the transceiver is configured to: send a resource scheduling request message to the access network device, and transmit an uplink data packet according to an uplink transmission resource allocated by the access network device, wherein the uplink transmission resource is allocated by the access network device to the UE when the resource scheduling request message is received by the access network device within a first time period that is associated with a setup duration of a VoLTE voice session after the access network device receives the connection setup message sent by the UE.

17. The user equipment according to claim 16 , wherein the user equipment further comprises a processor, wherein

the processor is configured to determine that an originating VoLTE voice session needs to be set up; and

the transceiver is configured to send the connection setup message to the access network device, wherein the connection setup message comprises originating voice session indication information that indicates that the connection setup message is sent due to the originating VoLTE voice session.

18. The user equipment according to claim 17 , wherein the transceiver is configured to receive a paging message sent by the access network device; and

the processor is configured to determine that the paging message comprises second voice session indication information.

19. The user equipment according to claim 16 , wherein the user equipment further comprises a processor, wherein

the processor is configured to determine that a terminated VoLTE voice session needs to be set up; and

the transceiver is configured to send the connection setup message to the access network device, wherein the connection setup message comprises terminated voice session indication information that indicates that the connection setup message is sent due to the terminated VoLTE voice session.