Cell reselection priorities between terrestrial networks and non-terrestrial networks
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsHelka-Liina Määttänen, Johan Rune, Chao He
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Abstract
A method performed by a wireless device for cell reselection includes identifying a non-terrestrial network (NTN) providing coverage for the wireless device. The wireless device receives a parameter from a network node. The parameter includes an indication to search for a terrestrial network (TN) though the NTN provides coverage for the wireless device. Based on the parameter, the wireless device searches for the TN and prioritizes the TN over the NTN when selecting the TN for cell reselection.
Claims26
A method performed by a wireless device for cell reselection, the method comprising:
- identifying a 3GPP non-terrestrial network, NTN, providing coverage for the wireless device;
- receiving, from a network node, a parameter comprising an indication to search for a 3GPP terrestrial network, TN, though the 3GPP NTN provides coverage for the wireless device, wherein the parameter comprises an indication of a network type associated with each of a plurality of cells, the network type indicating whether each cell is associated with the 3GPP TN or the 3GPP NTN;
- based on the parameter, searching for the 3GPP TN;
- and
- prioritizing the 3GPP TN over the 3GPP NTN when selecting the 3GPP TN for cell reselection, wherein prioritizing the 3GPP TN over the 3GPP NTN when selecting the TN for cell reselection comprises:
- at least one of:
- applying an offset to one or more measurements performed on one or more signals associated with the one or more TN cells and applying an offset to one or more measurements performed on one or more signals associated with the one or more NTN cells;
- and
- based on the applied offset, determining that a signal quality of the one or more TN cells is greater than a signal quality of the one or more NTN cells.
A method performed by a network node for cell reselection, the method comprising:
- sending a parameter to a wireless device, the parameter comprising an indication that the wireless device is to search for a 3GPP terrestrial network, TN, though a 3GPP Non-terrestrial network, NTN, provides coverage for the wireless device, wherein the parameter comprises an indication of a network type associated with each of a plurality of cells, the network type indicating whether each cell is associated with the 3GPP TN or the 3GPP NTN;
- and
- configuring the wireless device to prioritize the 3GPP TN over the 3GPP NTN when selecting the TN for cell reselection by performing:
- at least one of:
- applying an offset to one or more measurements performed on one or more signals associated with the one or more TN cells and applying an offset to one or more measurements performed on one or more signals associated with the one or more NTN cells;
- and
- based on the applied offset, determining that a signal quality of the one or more TN cells is greater than a signal quality of the one or more NTN cells.
Dependencies are inferred from the claim text.