Table 1 Investigated load control policies, with the respective threshold rule and threshold type
From: SON for LTE-WLAN access network selection: design and performance
LC policy | Threshold rule | Type | ANS between LTE micro | ANS between LTE macro |
|---|---|---|---|---|
layer and WLAN | layer and WLAN | |||
Micro LC | RSS-based ANS rule | RSS | Supported based on the load | Not supported. |
(No macro offloading) | level of the micro layer. | |||
Micro LC | RSS-based ANS rule | RSS | Supported based on the load | Supported based on the load |
level of the micro layer. | level of the micro layer. | |||
Macro LC | RSRP-based ANS rule | RSRP | Not supported. | Supported based on the load |
level of the macro layer. | ||||
LTE LC = | Micro layer: RSS rule | RSS | Supported based on the load | Supported based on the load |
Micro + Macro LC | Macro layer: RSRP rule | & RSRP | level of the micro layer. | level of the macro layer. |
WLAN LC | RSS-based ANS rule | RSS | Supported based on the load | Supported based on the load |
level of the WLAN system. | level of the WLAN system. | |||
IRAT LC | RSS-based ANS rule | RSS | Supported, accounting for both | Not supported. |
(No macro offloading) | the LTE and WLAN load level. | |||
IRAT LC | RSS-based ANS rule | RSS | Supported, accounting for both | Supported, accounting for both |
the LTE and WLAN load level. | the LTE and WLAN load level. |