Channel access priority for NR-U data bearers

Patent metadata

Field	Value
Publication number	US-11304086-B2
Application number	US-202016947835-A
Country	US
Kind code	B2
Filing date	Aug 19, 2020
Priority date	Aug 23, 2019
Publication date	Apr 12, 2022
Grant date	Apr 12, 2022

Abstract

Wireless communication devices, systems, and methods related to mechanisms to aid a user equipment in determining the channel access priority (CAPC) to use for a data radio bearer (DRB) on the response link, such as uplink (UL), that includes multiple quality of service (QoS) flows for an UL transmission (such as for a configured grant UL transmission). The UE may receive a plurality of QoS flows in a common DRB from a base station. The UE may apply a rule to select a CAPC to apply for all QoS flows in the common DRB on an UL transmission. This rule may alternatively include the base station making the selection of the CAPC to apply and informing the UE of the selected CAPC for implementation. The UE may then apply the selected CAPC to the UL transmission.

First claim

What is claimed is:

1. A method of wireless communication comprising:
receiving, by a first wireless communications device from a second wireless communications device, a plurality of data packets comprising a corresponding plurality of quality of service flows (QoS flows), each the plurality of QoS flows being mapped to a common data radio bearer (DRB);
implementing, by the first wireless communications device, a channel access priority class (CAPC) for the common DRB for transmitting a response data packet based on a rule from the second wireless communications device applied to the plurality of QoS flows mapped to the common DRB; and
transmitting, by the first wireless communications device to the second wireless communications device, the response data packet with the implemented CAPC.

2. The method of claim 1 , wherein the plurality of QoS flows mapped to the common DRB comprise a corresponding plurality of CAPCs.

3. The method of claim 2 , wherein the plurality of QoS flows are mapped to the common DRB based on the corresponding plurality of CAPCs being the same among the plurality of QoS flows, the rule comprising implementing the CAPC for the common DRB based on the same CAPC.

4. The method of claim 2 , wherein a first CAPC from among the plurality of CAPCs comprises a lower access priority than a second CAPC from among the plurality of CAPCs, the rule comprising implementing the first CAPC based on the first CAPC comprising the lower access priority.

5. The method of claim 2 , wherein a first CAPC from among the plurality of CAPCs comprises a higher access priority than a second CAPC from among the plurality of CAPCs, the rule comprising implementing the first CAPC based on the first CAPC comprising the higher access priority.

6. The method of claim 2 , wherein the rule comprises implementing the CAPC based on a QoS flow from a subset of QoS flows, the subset of QoS flows being from among the plurality of QoS flows.

7. The method of claim 2 , wherein the rule comprises implementing the CAPC based on a first common CAPC identified from a first subset of QoS flows from among the plurality of QoS flows, the first subset of QoS flows being greater than a second subset of QoS flows having a second common CAPC different from the first common CAPC.

8. The method of claim 2 , further comprising:
receiving, by the first wireless communications device from the second wireless communications device, an update to the CAPC in response to a new QoS flow being added to the plurality of QoS flows.

9. A method of wireless communication comprising:
selecting, by a first wireless communications device based on a rule applied to a plurality of quality of service (QoS) flows mapped to a common data radio bearer (DRB), a channel access priority class (CAPC) for a second wireless communications device to implement for a response data packet;
transmitting, by the first wireless communications device to the second wireless communications device, the selected CAPC;
transmitting, by the first wireless communications device to the second wireless communications device, a plurality of data packets corresponding to the plurality of QoS flows on the common DRB; and
receiving, by the first wireless communications device from the second wireless communications device, the response data packet on the common DRB having the selected CAPC.

10. The method of claim 9 , wherein the plurality of QoS flows mapped to the common DRB comprise a corresponding plurality of CAPCs.

11. The method of claim 10 , wherein:
the plurality of QoS flows are mapped to the common DRB based on the corresponding plurality of CAPCs being the same among the plurality of QoS flows, and
the selecting the CAPC for the common DRB is based on the same CAPC.

12. The method of claim 10 , wherein:
a first CAPC from among the plurality of CAPCs comprises a lower access priority than a second CAPC from among the plurality of CAPCs, and
the selecting the CAPC comprises selecting the first CAPC based on the first CAPC comprising the lower access priority.

13. The method of claim 10 , wherein:
a first CAPC from among the plurality of CAPCs comprises a higher access priority than a second CAPC from among the plurality of CAPCs, and
the selecting the CAPC comprises selecting the first CAPC based on the first CAPC comprising the higher access priority.

14. The method of claim 10 , wherein the selecting further comprises:
selecting, by the first wireless communications device, the selected CAPC based on a QoS flow from a subset of QoS flows, the subset of QoS flows being from among the plurality of QoS flows.

15. The method of claim 10 , the selected CAPC being based on a first subset of QoS flows from among the plurality of QoS flows being greater than a second subset of QoS flows from among the plurality of QoS flows, wherein the first subset of QoS flows has a first common CAPC and the second subset of QoS flows has a second common CAPC different from the first common CAPC.

16. A first wireless communications device, comprising:
a transceiver configured to receive, from a second wireless communications device, a plurality of data packets comprising a corresponding plurality of quality of service flows (QoS flows), each the plurality of QoS flows being mapped to a common data radio bearer (DRB); and
a processor configured to implement a channel access priority class (CAPC) for the common DRB for transmitting a response data packet based on a rule from the second wireless communications device applied to the plurality of QoS flows mapped to the common DRB,
wherein the transceiver is further configured to transmit, to the second wireless communications device, the response data packet with the implemented CAPC.

17. The first wireless communications device of claim 16 , wherein the plurality of QoS flows mapped to the common DRB comprise a corresponding plurality of CAPCs.

18. The first wireless communications device of claim 17 , wherein the plurality of QoS flows are mapped to the common DRB based on the corresponding plurality of CAPCs being the same among the plurality of QoS flows, the rule comprising implementing the CAPC for the common DRB based on the same CAPC.

19. The first wireless communications device of claim 17 , wherein a first CAPC from among the plurality of CAPCs comprises a lower access priority than a second CAPC from among the plurality of CAPCs, the rule comprising implementing the first CAPC based on the first CAPC comprising the lower access priority.

20. The first wireless communications device of claim 17 , wherein a first CAPC from among the plurality of CAPCs comprises a higher access priority than a second CAPC from among the plurality of CAPCs, the rule comprising implementing the first CAPC based on the first CAPC comprising the higher access priority.

21. The first wireless communications device of claim 17 , wherein the rule comprises implementing the CAPC based on a QoS flow from a subset of QoS flows, the subset of QoS flows being from among the plurality of QoS flows.

22. The first wireless communications device of claim 17 , wherein the rule comprises implementing the CAPC based on a first common CAPC identified from a first subset of QoS flows from among the plurality of QoS flows, the first subset of QoS flows being greater than a second subset of QoS flows having a second common CAPC different from the first common CAPC.

23. The first wireless communications device of cl

Assignees

• Qualcomm Inc

Inventors

• Ozturk Ozcan
• Zhang Xiaoxia
• Sun Jing

Classifications

• H04W72/56

  based on priority criteria · CPC title

• H04W74/0808 Primary

  using carrier sensing, e.g. carrier sense multiple access [CSMA] · CPC title

• H04W28/0268 Primary

  using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR] (negotiating SLA or negotiating QoS H04W28/24) · CPC title

• H04W28/0263

  involving mapping traffic to individual bearers or channels, e.g. traffic flow template [TFT] · CPC title

• H04W28/24

  Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service] · CPC title