Configuration of spectrum sharing between terrestrial and non-terrestrial networks
Solutions pertaining to configuration of spectrum sharing between a terrestrial network (TN) and a non-terrestrial network (NTN) are proposed. An apparatus implemented in a UE communicates with a non-terrestrial (NT) network node of the NTN by resource sharing with the TN. The resource sharing involves resource sharing with pairing of uplink (UL) and downlink (DL) transmissions of the NTN and the TN.
1 . A method, comprising:
communicating, by a processor of a non-terrestrial network (NTN) user equipment (UE), with a non-terrestrial (NT) network node of an NTN by resource sharing with a terrestrial network (TN),
communicating, by a processor of a TN UE, with the TN by sharing with the NTN, wherein the resource sharing comprises resource sharing with pairing of uplink (UL) and downlink (DL) transmissions of the NTN and the TN;
wherein the pairing of the UL and DL transmissions of the NTN and the TN comprises pairing of the UL and DL transmissions of the NTN and the TN such that at least one of the two cases:
an NTN DL transmission with respect to the NTN UE and a TN UL transmission with respect to the TN UE share a first resource; or
a NTN UL transmission with respect to the NTN UE and a TN DL transmission with respect to the TN UE share a second resource.
2 . The method of claim 1 , wherein the pairing of the UL and DL transmissions of the NTN and the TN comprises reverse pairing the UL and DL transmissions of the NTN and the TN with same frequency bands such that:
for the NTN, an NTN DL transmission is performed on a first frequency (F 1 ) and an NTN UL transmission is performed on a second frequency (F 2 ); and
for the TN, a TN DL transmission is performed on the F 2 and a TN UL transmission is performed on the F 1 .
3 . The method of claim 2 , wherein the reverse pairing of the UL and DL transmissions of the NTN and the TN comprises reverse pairing of the UL and DL transmissions of the NTN and the TN with partially overlapping frequency bands.
4 . The method of claim 1 , wherein the resource sharing with the TN comprises resource sharing with a base station of the TN which is configured to support NTN-TN spectrum sharing on reverse pairing frequency bands.
5 . The method of claim 1 , wherein the pairing of the UL and DL transmissions of the NTN and the TN comprises half-band pairing the UL and DL transmissions of the NTN and the TN with a same frequency allocation such that:
for the NTN, an NTN frequency-division duplexing (FDD) DL transmission is performed on a first frequency (F 1 ) and an NTN FDD UL transmission is performed on a second frequency (F 2 ); and
for the TN, a TN time-division duplexing (TDD) DL transmission is performed on the F 1 and a TN TDD UL transmission is also performed on the F 1 .
6 . The method of claim 5 , wherein the half-band pairing of the UL and DL transmissions of the NTN and the TN comprises half-band pairing of the UL and DL transmissions of the NTN and the TN with partially overlapping frequency bands.
7 . The method of claim 1 , wherein the pairing of the UL and DL transmissions of the NTN and the TN comprises supplemental carrier half-band pairing the UL and DL transmissions of the NTN and the TN with a same frequency allocation such that:
a first frequency (F 1 ) is utilized in an NTN frequency-division duplexing (FDD) DL transmission and a TN supplemental DL (SDL) transmission or supplemental UL (SUL) transmission; and
a second frequency (F 2 ) is utilized in an NTN FDD UL transmission.
8 . The method of claim 7 , wherein the TN SDL transmission or SUL transmission is performed on a supplemental carrier.
9 . The method of claim 7 , wherein the supplemental carrier half-band pairing of the UL and DL transmissions of the NTN and the TN comprises supplemental carrier half-band pairing of the UL and DL transmissions of the NTN and the TN with partially overlapping frequency bands.
10 . The method of claim 7 , wherein the supplemental carrier half-band pairing of the UL and DL transmissions of the NTN and the TN comprises applying supplemental carrier half-paired frequency bands to a TN supplemental carrier and the NTN FDD transmissions covering a same frequency allocation on an NTN UL transmission and the supplemental carrier.
11 . An apparatus implementable in a non-terrestrial network (NTN) user equipment (UE), comprising:
a transceiver configured to communicate wirelessly; and
a processor coupled to the transceiver and configured to communicate, via the transceiver, with a non-terrestrial (NT) network node of an NTN by resource sharing with a terrestrial network (TN), wherein a TN UE is configured to communicate with the TN by sharing with the NTN,
wherein the resource sharing comprises resource sharing with pairing of uplink (UL) and downlink (DL) transmissions of the NTN and the TN;
wherein the pairing of the UL and DL transmissions of the NTN and the TN comprises pairing of the UL and DL transmissions of the NTN and the TN such that at least one of the two cases:
an NTN DL transmission with respect to the NTN UE and a TN UL transmission with respect to the TN UE share a first resource; or
a NTN UL transmission with respect to the NTN UE and a TN DL transmission with respect to the TN UE share a second resource.
12 . The apparatus of claim 11 , wherein the pairing of the UL and DL transmissions of the NTN and the TN comprises reverse pairing the UL and DL transmissions of the NTN and the TN with same frequency bands such that:
for the NTN, an NTN DL transmission is performed on a first frequency (F 1 ) and an NTN UL transmission is performed on a second frequency (F 2 ); and
for the TN, a TN DL transmission is performed on the F 2 and a TN UL transmission is performed on the F 1 .
13 . The apparatus of claim 12 , wherein the reverse pairing of the UL and DL transmissions of the NTN and the TN comprises reverse pairing of the UL and DL transmissions of the NTN and the TN with partially overlapping frequency bands.
14 . The apparatus of claim 11 , wherein the resource sharing with the TN comprises resource sharing with a base station of the TN which is configured to support NTN-TN spectrum sharing on reverse pairing frequency bands.
15 . The apparatus of claim 11 , wherein the pairing of the UL and DL transmissions of the NTN and the TN comprises half-band pairing the UL and DL transmissions of the NTN and the TN with a same frequency allocation such that:
for the NTN, an NTN frequency-division duplexing (FDD) DL transmission is performed on a first frequency (F 1 ) and an NTN FDD UL transmission is performed on a second frequency (F 2 ); and
for the TN, a TN time-division duplexing (TDD) DL transmission is performed on the F 1 and a TN TDD UL transmission is also performed on the F 1 .
16 . The apparatus of claim 15 , wherein the half-band pairing of the UL and DL transmissions of the NTN and the TN comprises half-band pairing of the UL and DL transmissions of the NTN and the TN with partially overlapping frequency bands.
17 . The apparatus of claim 11 , wherein the pairing of the UL and DL transmissions of the NTN and the TN comprises supplemental carrier half-band pairing the UL and DL transmissions of the NTN and the TN with a same frequency allocation such that:
a first frequency (F 1 ) is utilized in an NTN frequency-division duplexing (FDD) DL transmission and a TN supplemental DL (SDL) transmission or supplemental UL (SUL) transmission; and
a second frequency (F 2 ) is utilized in an NTN FDD UL transmission, wherein the TN SDL transmission or SUL transmission is performed on a supplemental carrier.
18 . The apparatus of claim 17 , wherein the supplemental carrier half-band pairing of the UL and DL transmissions of the NTN and the TN comprises supplemental carrier half-band pairing of the UL and DL transmissions of the NTN and the TN with partially overlapping frequency bands.