Processing method and device for radio bearer for transmitting data stream
Disclosed are a processing method and device for a radio bearer for transmitting a data stream. The method comprises: determining a quality of service parameter transferred to an access network node by a control entity of a core network; and performing processing on a radio bearer according to the quality of service parameter so as to transmit a data stream needing to be transmitted between the core network and a UE unit. Processing is performed on the radio bearer at the UE unit according to a requirement of the access network node. The radio bearer may transmit the data stream between the core network and the UE unit. The solution herein can solve the problem of mapping multiple data streams having the same service quality to a radio bearer, reduce complexity of a signaling process, ensure quality of service transmission, and support processing of a special packet.
1. A method for processing a radio bearer for transmitting a data flow, the method comprising:
determining a quality of service parameter passed by a core network control entity to an access network node; and
processing a radio bearer according to the quality of service parameter to transmit a data flow to be transmitted between a core network and a User Equipment (UE);
wherein the quality of service parameter is passed to the access network node in a signaling-plane message; or
the quality of service parameter is passed to the access network node by carrying the quality of service parameter in a data packet transmitted to the access network node;
wherein processing the radio bearer according to the quality of service parameter when the quality of service parameter is passed to the access network node in the signaling-plane message comprises:
searching existing radio bearers between an access network and the UE for a radio bearer satisfying the quality of service parameter requirement, and after no radio bearer satisfying the quality of service parameter requirement is found as a result of the search, determining whether a radio bearer satisfying the quality of service parameter can be set up, according to whether the resource of the access network can satisfy a bit rate requirement for the data flow, and if so, setting up a radio bearer satisfying the quality of service parameter requirement, and transmitting the data flow to be transmitted by the core network control entity to the UE, on the set radio bearer; or
searching existing radio bearers between an access network and the UE for radio bearers satisfying the quality of service parameter, and reconfiguring some radio bearer among the radio bearers which can satisfy the quality of service parameter requirement, in a radio bearer reconfiguration flow to satisfy the quality of service parameter requirement, and transmitting the data flow to be transmitted by the core network control entity to the UE, on the radio bearer;
wherein processing the radio bearer according to the quality of service parameter when the quality of service parameter is passed to the access network node by carrying the quality of service parameter in the data packet to be transmitted to the access network node, comprises:
searching existing radio bearers between an access network and the UE for a radio bearer satisfying the quality of service parameter requirement, and after the radio bearer satisfying the quality of service parameter requirement is found as a result of the search, transmitting the data packet transmitted by the core network control entity, to the UE on the found radio bearer; or
searching existing radio bearers between an access network and the UE for a radio bearer satisfying the quality of service parameter requirement, and after no radio bearer satisfying the quality of service parameter requirement is found as a result of the search, setting up a new radio bearer, configuring various layer 1 (L1) and layer 2 (L2) options for the new radio bearer according to the quality of service parameter requirement, and transmitting the data packet transmitted by the core network control entity, to the UE on the radio bearer after the radio bearer is configured.
2. The method according to claim 1 , further comprises at least one of:
releasing a set radio bearer according to a set timer; or
releasing a set radio bearer upon reception of a notification of the core network control entity which notifies that transmission of a data flow is finished.
3. The method according to claim 1 , wherein when the data flow to be transmitted between the core network and the UE comprises an uplink data flow, the method further comprises:
when an uplink radio bearer for transmitting uplink data is set up or reconfigured, notifying, by the access network node, the UE of related parameters of the uplink radio bearer, and a mapping relationship between the uplink data flow and the uplink radio bearer.
4. The method according to claim 1 , wherein the quality of service parameter comprises one or a combination of following information:
a quality of service requirement for the data flow, a transmission attribute of the data flow, and a characteristic of a special data packet.
5. The method according to claim 4 , wherein when the quality of service parameter comprises the characteristic of a special data packet, the method further comprises:
identifying a data packet in the data flow according to the characteristic of at least one of a special data packet, or a data packet processing rule preset on the access network node, and
processing the identified data packet according to a requirement on the data packet.
6. A method for processing a radio bearer for transmitting a data flow, the method comprising:
processing a radio bearer on a User Equipment (UE) according to a requirement of an access network node, wherein the requirement of the access network node is made by the access network node according to a quality of service parameter passed by a core network control entity to the access network node; and
transmitting a data flow to be transmitted between a core network and the UE, on the radio bearer;
wherein processing the radio bearer on the UE according to the requirement of the access network node comprises:
when the quality of service parameter is passed to the access network node in a signaling-plane message,
searching existing radio bearers between an access network and the UE for a radio bearer satisfying the quality of service parameter requirement, and after no radio bearer satisfying the quality of service parameter requirement is found as a result of the search, determining whether a radio bearer satisfying the quality of service parameter can be set up, according to whether the resource of the access network can satisfy a bit rate requirement for the data flow, and if so, setting up a radio bearer satisfying the quality of service parameter requirement, and transmitting the data flow to be transmitted by the core network control entity to the UE, on the set radio bearer; or
searching existing radio bearers between an access network and the UE for radio bearers satisfying the quality of service parameter, and reconfiguring some radio bearer among the radio bearers which can satisfy the quality of service parameter requirement, in a radio bearer reconfiguration flow to satisfy the quality of service parameter requirement, and transmitting the data flow to be transmitted by the core network control entity to the UE, on the radio bearer;
when the quality of service parameter is passed to the access network node by carrying the quality of service parameter in a data packet to be transmitted to the access network node,
searching existing radio bearers between an access network and the UE for a radio bearer satisfying the quality of service parameter requirement, and after the radio bearer satisfying the quality of service parameter requirement is found as a result of the search, transmitting the data packet transmitted by the core network control entity, to the UE on the found radio bearer; or
searching existing radio bearers between an access network and the UE for a radio bearer satisfying the quality of service parameter requirement, and after no radio bearer satisfying the quality of service parameter requirement is found as a result of the search, setting up a new radio bearer, configuring various layer 1 (L1) and layer 2 (L2) options for the new radio bearer according to the quality of service parameter requirement, and transmitting the data packet transmitted by the core network control entity, to the UE on the radio bearer after the radio bearer is configured.
7. The method according to claim 6 , wherein when the data flow to be transmitted between the core network and the UE comprises an uplink data flow, the method further comprises:
determining an uplink data flow to be transmitted by the UE, and notifying the core network control entity.
8. The method according to claim 6 , further comprises:
receiving a notification comprising respective related parameters of an uplink radio bearer for transmitting an uplink data flow, and a mapping relationship between the uplink data flow and the uplink radio bearer.
9. An access network node device, comprising: a processor, a memory, and a transceiver, wherein the transceiver is configured to receive and transmit data under the control of the processor, preset program is stored in the memory, and the processor is configured to read the program in the memory to:
determine a quality of service parameter passed by a core network control entity to an access network node; and
process a radio bearer according to the quality of service parameter to transmit a data flow to be transmitted between a core network and a User Equipment (UE);
wherein the processor is configured to read the program in the memory
to determine the quality of service parameter according to the quality of service parameter passed by the core network control entity to the access network node in a signaling-plane message; or
to determine the quality of service parameter according to the quality of service parameter carried in a data packet transmitted to the access network node;
wherein when the quality of service parameter is passed to the access network node in the signaling-plane message, the processor is further configured to read the program in the memory to:
search existing radio bearers between an access network and the UE for a radio bearer satisfying the quality of service parameter requirement, and after no radio bearer satisfying the quality of service parameter is found as a result of the search, to determine whether a radio bearer satisfying the quality of service parameter can be set up, according to whether the resource of the access network can satisfy a bit rate requirement for the data flow, and if so, to set up a radio bearer satisfying the quality of service parameter requirement, and to transmit the data flow to be transmitted by the core network control entity to the UE, on the set radio bearer; or
search existing radio bearers between an access network and the UE for radio bearers satisfying the quality of service parameter, and to reconfigure some radio bearer among the radio bearers which can satisfy the quality of service parameter requirement, in a radio bearer reconfiguration flow to satisfy the quality of service parameter requirement, and transmit the data flow to be transmitted by the core network control entity to the UE, on the radio bearer;
wherein when the quality of service parameter is passed to the access network node by carrying the quality of service parameter in the data packet to be transmitted to the access network node, the processor is further configured to read the program in the memory to:
search existing radio bearers between an access network and the UE for a radio bearer satisfying the quality of service parameter requirement, and after the radio bearer satisfying the quality of service parameter requirement is found as a result of the search, to transmit the data packet transmitted by the core network control entity, to the UE on the found radio bearer; or
search existing radio bearers between an access network and the UE for a radio bearer satisfying the quality of service parameter requirement, and after no radio bearer satisfying the quality of service parameter requirement is found as a result of the search, to set up a new radio bearer, configuring various layer 1 (L1) and layer 2 (L2) options for the new radio bearer according to the quality of service parameter requirement, and transmitting the data packet transmitted by the core network control entity, to the UE on the radio bearer after the radio bearer is configured.
10. A user equipment, comprising: a processor, a memory, and a transceiver, wherein the transceiver is configured to receive and transmit data under the control of the processor, preset program is stored in the memory, and the processor is configured to read the program in the memory to:
process a radio bearer on a User Equipment (UE) according to a requirement of an access network node, wherein the requirement of the access network node is made by the access network node according to a quality of service parameter passed by a core network control entity to the access network node; and
transmit a data flow to be transmitted between a core network and the UE, on the radio bearer;
wherein the processor configured to read the program in the memory to process the radio bearer on the UE according to the requirement of the access network node, is further configured to:
when the quality of service parameter is passed to the access network node in a signaling-plane message,
search existing radio bearers between an access network and the UE for a radio bearer satisfying the quality of service parameter requirement, and after no radio bearer satisfying the quality of service parameter requirement is found as a result of the search, determine whether a radio bearer satisfying the quality of service parameter can be set up, according to whether the resource of the access network can satisfy a bit rate requirement for the data flow, and if so, set up a radio bearer satisfying the quality of service parameter requirement, and transmit the data flow to be transmitted by the core network control entity to the UE, on the set radio bearer; or
search existing radio bearers between an access network and the UE for radio bearers satisfying the quality of service parameter, and reconfigure some radio bearer among the radio bearers which can satisfy the quality of service parameter requirement, in a radio bearer reconfiguration flow to satisfy the quality of service parameter requirement, and transmit the data flow to be transmitted by the core network control entity to the UE, on the radio bearer;
when the quality of service parameter is passed to the access network node by carrying the quality of service parameter in a data packet to be transmitted to the access network node,
search existing radio bearers between an access network and the UE for a radio bearer satisfying the quality of service parameter requirement, and after the radio bearer satisfying the quality of service parameter requirement is found as a result of the search, transmit the data packet transmitted by the core network control entity, to the UE on the found radio bearer; or
search existing radio bearers between an access network and the UE for a radio bearer satisfying the quality of service parameter requirement, and after no radio bearer satisfying the quality of service parameter requirement is found as a result of the search, set up a new radio bearer, configure various layer 1 (L1) and layer 2 (L2) options for the new radio bearer according to the quality of service parameter requirement, and transmit the data packet transmitted by the core network control entity, to the UE on the radio bearer after the radio bearer is configured.
11. The access network node device according to claim 9 , wherein the processor is configured to read the program in the memory to at least one of: release a set radio bearer according to a set timer; or release a set radio bearer upon reception of such a notification of the core network control entity that transmission of a data flow ends.
12. The access network node device according to claim 9 , wherein the processor is configured to read the program in the memory to set up an uplink radio bearer for transmitting uplink data when the data flow to be transmitted between the core network and the UE comprises an uplink data flow by notifying the UE of related parameters of the uplink radio bearer, and a mapping relationship between the uplink data flow and the uplink radio bearer.
13. The access network node device according to claim 9 , wherein the quality of service parameter comprises one or a combination of following information:
a quality of service requirement for the data flow, a transmission attribute of the data flow, and a characteristic of a special data packet.
14. The access network node device according to claim 13 , wherein the processor is configured to read the program in the memory to, when the quality of service parameter comprises the characteristic of a special data packet, identify at least one of a data packet in the data flow according to the characteristic of a special data packet, or a data packet processing rule preset on the access network node, and process the identified data packet according to a requirement on the data packet.
15. The user equipment according to claim 10 , wherein the processor is configured to read the program in the memory to determine an uplink data flow to be transmitted by the UE, and to notify the core network control entity, when the data flow to be transmitted between the core network and the UE comprises an uplink data flow.
16. The user equipment according to claim 10 , wherein the processor is configured to read the program in the memory to receive a notification comprising respective related parameters of an uplink radio bearer for transmitting an uplink data flow, and a mapping relationship between the uplink data flow and the uplink radio bearer.