Methods for controlling communication states, terminal, and network device
View Patent ↗Methods for controlling communication states, a terminal, and a network device are provided. The method includes the following. The terminal receives a physical downlink control channel (PDCCH) from a network device in a first time slot, where the PDCCH carries first indication information indicative of a first communication state. The terminal enters the first communication state in a second time slot according to the first indication information, where the second time slot is after the first time slot.
1. A method for controlling communication states, comprising:
receiving, by a terminal, a physical downlink control channel (PDCCH) from a network device in a first time slot, wherein the PDCCH carries first indication information indicative of a first communication state; and
entering, by the terminal, the first communication state in a second time slot according to the first indication information, wherein the second time slot is after the first time slot;
wherein the first communication state is a first cross-slot scheduling state, and entering, by the terminal, the first communication state in the second time slot according to the first indication information comprises:
entering, by the terminal, the first cross-slot scheduling state in the second time slot according to the first indication information;
wherein entering, by the terminal, the first cross-slot scheduling state in the second time slot according to the first indication information comprises:
entering, by the terminal, the first cross-slot scheduling state in the second time slot, when the first cross-slot scheduling state is different from a second cross-slot scheduling state that the terminal is currently in.
2. The method of claim 1 , further comprising:
prior to entering, by the terminal, the first cross-slot scheduling state in the second time slot according to the first indication information:
comparing, by the terminal, the first cross-slot scheduling state with the second cross-slot scheduling state.
3. The method of claim 1 , wherein an offset of x time slots exists between the second time slot and the first time slot, wherein x is a positive integer.
4. The method of claim 3 , wherein x is the maximum between a and Sc, a is a constant, and Sc is a slot offset corresponding to the second cross-slot scheduling state that the terminal is currently in.
5. The method of claim 1 , wherein the first indication information comprises N bits, wherein Nis a positive integer, different values of the first indication information are indicative of different first cross-slot scheduling states, and a correspondence between the first cross-slot scheduling states and values of the N bits is configured by high-layer signaling.
6. The method of claim 5 , wherein each first cross-slot scheduling state corresponds to a set of slot offsets, wherein the set of slot offsets comprise a first slot offset for the PDSCH and a second slot offset for a physical uplink shared channel (PUSCH).
7. The method of claim 6 , wherein each first cross-slot scheduling state corresponding to a set of slot offsets comprises the following:
the first cross-slot scheduling state is indicated by N bits, and any values of the N bits indicative of the first cross-slot scheduling state correspond to a combination of the first slot offset and the second slot offset.
8. The method of claim 1 , further comprising:
transmitting, by the terminal, no first PUSCH to the network device, when the terminal determines that time-domain scheduling information of the first PUSCH does not match the second cross-slot scheduling state that the terminal is currently in, wherein the first PUSCH is a PUSCH scheduled by the PDCCH that is received by the terminal in the first time slot.
9. The method of claim 8 , further comprising:
determining, by the terminal, that the time-domain scheduling information of the first PUSCH does not match the second cross-slot scheduling state, when a slot offset corresponding to the time-domain scheduling information of the first PUSCH is smaller than a slot offset corresponding to the second cross-slot scheduling state.
10. The method of claim 1 , further comprising:
receiving, by the terminal, a dedicated control channel (DCCH) from the network device, wherein the DCCH carries second indication information indicative of a default cross-slot scheduling state; and
according to the second indication information, entering, by the terminal, the default cross-slot scheduling state at the beginning of a discontinuous reception (DRX) ON state, and entering, by the terminal, the default cross-slot scheduling state at the end of the DRX ON state.
11. A method for controlling communication states, comprising:
transmitting, by a network device, a physical downlink control channel (PDCCH) to a terminal, wherein the PDCCH carries first indication information indicative of a first communication state, wherein the first communication state is a first cross-slot scheduling state, and wherein the first indication information is used for directing the terminal to enter the first cross-slot scheduling state in a second time slot when the first indication information is received by the terminal in a first time slot and the first cross-slot scheduling state is different from a second cross-slot scheduling state that the terminal is currently in, wherein the second time slot is after the first time slot.
12. The method of claim 11 , wherein an offset of x time slots exists between the second time slot and the first time slot, wherein x is a positive integer.
13. The method of claim 12 , wherein x is the maximum between a and Sc, a is a constant, and Sc is a slot offset corresponding to the second cross-slot scheduling state that the terminal is currently in.
14. The method of claim 11 , wherein the first indication information comprises N bits, wherein Nis a positive integer, different values of the first indication information are indicative of different first cross-slot scheduling states, and a correspondence between the first cross-slot scheduling states and the values of the N bits is configured by high-layer signaling.
15. The method of claim 14 , wherein each first cross-slot scheduling state corresponds to a set of slot offsets, wherein the set of slot offsets comprises a first slot offset for the PDSCH and a second slot offset for a physical uplink shared channel (PUSCH).
16. The method of claim 15 , wherein each first cross-slot scheduling state corresponding to a set of slot offsets comprises the following:
the first cross-slot scheduling state is indicated by N bits, and any values of the N bits indicative of the first cross-slot scheduling state corresponds to a combination of the first slot offset and the second slot offset.
17. A terminal, comprising:
a transceiver;
a processor; and
a memory storing computer programs which, when executed by the processor, cause the transceiver to:
receive a physical downlink control channel (PDCCH) from a network device in a first time slot, wherein the PDCCH carries first indication information indicative of a first communication state;
the computer programs, when executed by the processor, causing the processor to:
enter the first communication state in a second time slot according to the first indication information, wherein the second time slot is after the first time slot;
wherein the first communication state is a first cross-slot scheduling state;
the computer programs causing the processor to enter the first communication state in the second time slot according to the first indication information causes the processor to:
enter the first cross-slot scheduling state in the second time slot according to the first indication information;
wherein the computer programs causing the processor to enter the first cross-slot scheduling state in the second time slot according to the first indication information causes the processor to:
enter the first cross-slot scheduling state in the second time slot, when the first cross-slot scheduling state is different from a second cross-slot scheduling state that the terminal is currently in.
18. The terminal of claim 17 , wherein the first indication information comprises N bits, wherein Nis a positive integer, different values of the first indication information are indicative of different first cross-slot scheduling states, and a correspondence between the first cross-slot scheduling states and values of the N bits is configured by high-layer signaling.
19. The terminal of claim 18 , wherein each first cross-slot scheduling state corresponds to a set of slot offsets, wherein the set of slot offsets comprises a first slot offset for the PDSCH and a second slot offset for a physical uplink shared channel (PUSCH).
20. The terminal of claim 19 , wherein each first cross-slot scheduling state corresponding to a set of slot offsets comprises the following:
the first cross-slot scheduling state is indicated by N bits, and any values of the N bits indicative of the first cross-slot scheduling state correspond to a combination of the first slot offset and the second slot offset.
21. A network device, comprising:
a transceiver;
a processor; and
a memory storing computer programs which, when executed by the processor, cause the transceiver to:
transmit a physical downlink control channel (PDCCH) to a terminal, wherein the PDCCH carries first indication information indicative of a first communication state, wherein the first communication state is a first cross-slot scheduling state, and the first indication information is used for directing the terminal to enter the first cross-slot scheduling state in a second time slot when the first indication information is received by the terminal in a first time slot and the first cross-slot scheduling state is different from a second cross-slot scheduling state that the terminal is currently in, wherein the second time slot is after the first time slot.
22. The network device of claim 21 , wherein the first indication information comprises N bits, wherein Nis a positive integer, different values of the first indication information are indicative of different first cross-slot scheduling states, and a correspondence between the first cross-slot scheduling states and the values of the N bits is configured by high-layer signaling.
23. The network device of claim 22 , wherein each first cross-slot scheduling state corresponds to a set of slot offsets, wherein the set of slot offsets comprise a first slot offset for the PDSCH and a second slot offset for a physical uplink shared channel (PUSCH).
24. The network device of claim 23 , wherein each first cross-slot scheduling state corresponding to a set of slot offsets comprises the following:
the first cross-slot scheduling state is indicated by N bits, and any values of the N bits indicative of the first cross-slot scheduling state corresponds to a combination of the first slot offset and the second slot offset.