Intra-QCI scheduler and method for intra-QCI scheduling in a wireless access network
Embodiments of an intra-QCI scheduler and method for assisted intra-QCI scheduling are generally described herein for operating within a wireless access network in which data flows are mapped to bearers using quality-of-service (QoS) class identifiers (QCIs). In some embodiments, the intra-QCI scheduler may classify packets of one or more data flows having a same QCI with a sub-QCI based on intra-QCI classification information received from user equipment (UE). The sub-QCI may indicate a scheduling priority for packets of data flows having the same QCI. The intra-QCI scheduler may schedule packets for downlink transmission over a radio bearer between the eNodeB and the UE based on the sub-QCI. The use of sub-QCIs allows the eNodeB to provide QoS support for data flows of applications that have been mapped to a default bearer.
1. An apparatus of an evolved Node B (eNodeB), the apparatus comprising:
memory; and
processing circuitry configured to:
during congestion situations, schedule a packet for downlink transmission to a user equipment based first on a quality-of-service (QoS) class identifier (QCI) and secondly based on a sub-QCI, the sub-QCI indicating a scheduling priority for packets with a same QCI during congestion situations;
during non-congestion situations, schedule the packet for downlink transmission to the user equipment based on the QCI without considering the sub-QCI; and
configure the eNodeB to transmit the scheduled packet over a radio bearer to the user equipment.
2. The apparatus of claim 1 , wherein
the QCI and the sub-QCI are from an evolved packet core (EPC) entity.
3. The apparatus of claim 2 , wherein the EPC entity is a packet data network gateway (PGW).
4. The apparatus of claim 2 , wherein the sub-QCI is determined based on at least one of the following group: a category of data of the packet, an application sending the data of the packet, a subscription level of a subscriber of the user equipment, and a destination or sender Internet Protocol address of the packet.
5. The apparatus of claim 1 , wherein the sub-QCI indicates a priority.
6. The apparatus of claim 1 , wherein if the packet is associated with a real-time application, the sub-QCI is a first priority, and if the packet is associated with a non-real-time application, the sub-QCI is a second priority, and wherein the first priority indicates a higher priority than the second priority.
7. The apparatus of claim 1 , wherein the eNodeB is configured to operate in a 3rd Generation Partnership Project (3GPP) Universal Terrestrial Radio Access Network (UTRAN) Long-Term-Evolution (LTE) network (E-UTRAN).
8. The apparatus of claim 1 , wherein during congestion conditions, the packet is to be scheduled before other packets with a same value of a corresponding QCI as the QCI of the packet and a corresponding sub-QCI that indicates a lower priority than a priority indicated by the sub-QCI of the packet.
9. The apparatus of claim 1 , further comprising transceiver circuitry coupled to the memory.
10. The apparatus of claim 9 , further comprising one or more antennas couple to the transceiver circuitry.
11. An apparatus of an evolved Node B (eNodeB), the apparatus comprising:
memory; and
processing circuitry configured to:
determine a schedule for a packet for downlink transmission to a user equipment based on a quality-of-service (QoS) class identifier (QCI) and a sub-QCI if there is congestion, and determine the schedule for the packet for downlink transmission to the user equipment based on the QCI if there is not congestion, the sub-QCI indicating a scheduling priority for packets with a same QCI during congestion situations; and
configure the eNodeB to transmit the packet over a corresponding radio bearer of the QCI to the user equipment in accordance with the schedule.
12. The apparatus of claim 11 , wherein the sub-QCI indicates a priority.
13. The apparatus of claim 11 , further comprising transceiver circuitry coupled to the memory; and, one or more antennas couple to the transceiver circuitry.
14. A non-transitory computer-readable storage medium that stores instructions for execution by one or more processors of an apparatus of an evolved Node B (eNodeB), the instructions to configure the apparatus to perform operations to:
during congestion situations, schedule a packet for downlink transmission to a user equipment based first on a quality-of-service (QoS) class identifier (QCI) and secondly based on a sub-QCI, the sub-QCI indicating a scheduling priority for packets with a same QCI during congestion situations;
during non-congestion situations, schedule the packet for downlink transmission to the user equipment based on the QCI; and
configure the eNodeB to transmit the scheduled packet over a radio bearer to the user equipment.
15. The non-transitory computer-readable storage medium of claim 14 , wherein
the QCI and the sub-QCI are from an evolved packet core (EPC) entity.
16. The non-transitory computer-readable storage medium of claim 15 , wherein the EPC entity is a packet data network gateway (PGW).
17. The non-transitory computer-readable storage medium of claim 14 , wherein the sub-QCI is determined based on at least one of the following group: a category of data of the packet, an application sending the data of the packet, a subscription level of a subscriber of the user equipment, and a destination or sender Internet Protocol address of the packet.
18. The non-transitory computer-readable storage medium of claim 14 , wherein the eNodeB is configured to operate in a 3rd Generation Partnership Project (3GPP) Universal Terrestrial Radio Access Network (UTRAN) Long-Term-Evolution (LTE) network (E-UTRAN).
19. The non-transitory computer-readable storage medium of claim 14 , wherein a higher value for the sub-QCI indicates a higher priority than a lower value for the sub-QCI.
20. The non-transitory computer-readable storage medium of claim 14 , wherein the sub-QCI indicates a priority.
21. The apparatus of claim 1 , wherein the packet further comprises a priority associated with the QCI.