---
title: WAAccessCategory.background
framework: wifiaware
role: symbol
role_heading: Case
path: wifiaware/waaccesscategory/background
---

# WAAccessCategory.background

A quality-of-service (QoS) type that provides high throughput for delay-tolerant, noninteractive data transfers of any size.

## Declaration

```swift
case background
```

## Discussion

Discussion Use this Wi-Fi access category for background data transfers, to prevent background traffic from interfering with other higher-priority flows, and for packets transmitted by a NetworkConnection that you set with NWParameter’s serviceClass = .background. For more information, refer to NWParameters.ServiceClass.background

## See Also

### Providing throughput

- [WAAccessCategory.bestEffort](wifiaware/waaccesscategory/besteffort.md)
- [WAAccessCategory.interactiveVideo](wifiaware/waaccesscategory/interactivevideo.md)
- [WAAccessCategory.interactiveVoice](wifiaware/waaccesscategory/interactivevoice.md)