Communication method based on non-orthogonal transmission, and device
The present invention discloses a communication method based on non-orthogonal transmission, and a device. The method includes: receiving, by first user equipment UE, first downlink control information sent by a base station, where the first downlink control information includes a downlink control parameter of the first UE and an index of a radio network temporary identifier RNTI of second UE; receiving, by the first UE, second downlink control information sent by the base station; and obtaining, by the first UE, a data signal of the first UE according to the index of the RNTI of the second UE, the downlink control parameter of the second UE, the data signal of the associated user equipment group, and the downlink control parameter of the first UE. Signaling overheads can be reduced according to embodiments of the present invention.
1. A communication method based on non-orthogonal transmission, comprising:
receiving, by a first user equipment (UE) from a base station, downlink control information that includes:
a first downlink control parameter of the first UE,
a second downlink control parameter of a second UE, and
a first identity of the first UE, the first identity of the first UE indicating that the first UE is a cell-center UE, the first UE and the second UE belonging to an associated user equipment group, the second UE being a cell-edge UE;
receiving, by the first UE from the base station, a data signal of the associated user equipment group, the data signal of the associated user equipment group including a first data signal of the first UE and a second data signal of the second UE; and
obtaining, by the first UE, the first data signal of the first UE according to the data signal of the associated user equipment group, and the first downlink control parameter of the first UE.
2. The method according to claim 1 , wherein the downlink control information further includes pairing information and power allocation ratio information.
3. The method according to claim 2 , wherein the pairing information and the power allocation ratio information are notified by 2 bits.
4. The method according to claim 3 , wherein, when the pairing information and the power allocation ratio information are set to a value of 0, the pairing information and the power allocation ratio information indicate that there is no associated user equipment group.
5. The method according to claim 1 , wherein the downlink control information does not include a radio network temporary identifier (RNTI) of the second UE.
6. A user equipment (UE), comprising:
a non-transitory computer-readable memory having executable instructions stored thereon; and
a processor coupled to the non-transitory computer-readable memory, wherein the processor executes the executable instructions to:
receive, from a base station, downlink control information including:
a first downlink control parameter of the UE,
a second downlink control parameter of a second UE, and
a first identity of the UE, the first identity of the UE indicating that the UE is a cell-center UE, the UE being a first UE in an associated user equipment group, the second UE being a cell-edge UE, and the associated user equipment group further including the second UE;
receive, from the base station, a data signal of the associated user equipment group, the data signal of the associated user equipment group including a first data signal of the UE and a second data signal of the second UE; and
obtain the first data signal of the UE according to the data signal of the associated user equipment group, and the first downlink control parameter of the UE.
7. The user equipment according to claim 6 , wherein the downlink control information further includes pairing information and power allocation ratio information.
8. The user equipment according to claim 7 , wherein the pairing information and the power allocation ratio information are notified by 2 bits.
9. The user equipment according to claim 8 , wherein,
when the pairing information and the power allocation ratio information are set to a value of 0, the pairing information and the power allocation ratio information indicate that there is no associated user equipment group.
10. The user equipment according to claim 6 , wherein the downlink control information does not include a radio network temporary identifier (RNTI) of the second UE.
11. A communication method based on non-orthogonal transmission, comprising:
sending, by a base station, downlink control information that includes:
a first downlink control parameter of a first user equipment (UE),
a second downlink control parameter of a second UE, and
a first identity of the first UE, the first identity of the first UE indicating that the first UE is a cell-center UE, the first UE and the second UE belonging to an associated user equipment group, the second UE being a cell-edge UE; and
sending, by the base station, a data signal of the associated user equipment group including a first data signal of the first UE and a second data signal of the second UE, the second data signal of the second UE being scrambled using a preset radio network temporary identifier (RNTI) of the second UE.
12. The method according to claim 11 , wherein the downlink control information further includes pairing information and power allocation ratio information.
13. The method according to claim 12 , wherein the pairing information and the power allocation ratio information are notified by 2 bits.
14. The method according to claim 13 , wherein, when the pairing information and the power allocation ratio information are set to a value of 0, the pairing information and the power allocation ratio information indicate that there is no associated user equipment group.
15. The method according to claim 11 , wherein the downlink control information does not include the preset RNTI of the second UE.
16. A base station, comprising:
a non-transitory computer-readable memory having executable instructions stored thereon; and
a processor coupled to the non-transitory computer-readable memory, wherein the processor executes the executable instructions to:
send downlink control information that includes:
a first downlink control parameter of a first user equipment (UE),
a second downlink control parameter of a second UE, and
a first identity of the first UE, the first identity of the first UE indicating that the first UE is a cell-center UE, the first UE and the second UE belonging to an associated user equipment group, the second UE being a cell-edge UE; and
send a data signal of the associated user equipment group including a first data signal of the first UE and a second data signal of the second UE, the second data signal of the second UE being scrambled using a preset radio network temporary identifier (RNTI) of the second UE.
17. The base station according to claim 16 , wherein the downlink control information further includes pairing information and power allocation ratio information.
18. The base station according to claim 17 , wherein the pairing information and the power allocation ratio information are notified by 2 bits.
19. The base station according to claim 17 , wherein, when the pairing information and the power allocation ratio information are set to a value of 0, the pairing information and the power allocation ratio information indicate that there is no associated user equipment group.
20. The base station according to claim 16 , wherein the downlink control information does not include the preset RNTI of the second UE.