Method and device in UE and base station used for low latency communication

1. A method in a User Equipment (UE) for low latency communication, comprising:

determining a first power and transmitting a first radio signal with the first power on a first carrier;

determining R power value(s), transmitting R low latency radio signal(s) on a second carrier with the R power value(s) respectively;

wherein the first radio signal carries at least one of a first bit block and a first uplink control information; the first radio signal comprises L sub-radio signals, the L sub-radio signals occupies L time intervals respectively, the L is a positive integer greater than 1; time-domain resources occupied by the R low latency radio signal(s) belong to R time interval(s) respectively, the R time interval(s) is(are) R of the L time intervals, the R is a positive integer; each of the R low latency radio signal(s) carries at least one of a low latency bit block and a low latency uplink channel; a target time interval set is composed by L 1 time interval(s), the L 1 time interval(s) is(are) L 1 of the L time intervals, the L 1 is a positive integer less than or equal to the L; at least a first time interval of the R time interval(s) belongs to the target time interval set, the R low latency radio signal(s) comprises(comprise) a first low latency radio signal, a transmission power of the first low latency radio signal is a second power, the first power is used to determine the second power or the second power is used to determine the first power, time-domain resources occupied by the first low latency radio signal belong to a first time interval; or the R time interval(s) are out of the target time interval set, the first power is used to determine the R power value(s); the first time interval is one of the R time interval(s).

2. The method according to claim 1 , wherein at least the first time interval of the R time interval(s) belongs to the target time interval set; the first radio signal carries the first bit block between the first bit block and the first uplink control information, the first low latency radio signal carries the low latency uplink control information; or the first radio signal carries the first uplink control information, the first low latency radio signal carries the low latency uplink control information, the first uplink control information is transmitted by physical layer data channel, the low latency uplink control information is transmitted by physical layer control channel; a first ideal power is less than or equal to a difference between a third power and a second power, the first power is equal to the first ideal power; or a first ideal power is greater than a difference between a third power and a second power, the first power is less than or equal to a difference between a third power and a second power; the second power is a transmission power of the first low latency radio signal without power scaling, the first ideal power is a transmission power of the first radio signal without power scaling; the third power is a maximum total transmission power minus a fourth power, the fourth power is a total transmission power of the user equipment on the first time interval on carrier(s) other than the first carrier and the second carrier;

or, at least the first time interval of the R time interval(s) belongs to the target time interval set; the first radio signal carries the first uplink control information, the first low latency radio signal carries the low latency bit block between the low latency bit block and the low latency uplink control information; or the first radio carries the first uplink control information, the first low latency radio signal carries the low latency uplink control information, the first uplink control information is transmitted by physical layer data channel, the low latency uplink control information is transmitted by physical layer data channel; a second ideal power is less than or equal to a difference between a third power and a first power, the second power is equal to the second ideal power; or a second ideal power is greater than a difference between a third power and a first power, the second power is less than or equal to a difference between a third power and a first power; the first power is a transmission power of the first radio signal without power scaling, the second ideal power is a transmission power of the first low latency radio signal without power scaling; the third power is a maximum total transmission power minus a fourth power, the fourth power is a total transmission power of the user equipment on the first time interval on carrier(s) other than the first carrier and the second carrier;

or, at least a first time interval of the R time interval(s) belongs to the target time interval set; the first radio signal carries the first bit block between the first bit block and the first uplink control information; the first low latency radio signal carries the low latency bit block between the low latency bit block and the low latency uplink control information; or the first radio signal carries the first uplink control information, the first low latency radio signal carries the low latency uplink control information, the first uplink control information is transmitted by physical layer control channel, the low latency uplink control information is transmitted by physical layer control channel; or the first radio signal carries a first uplink control information, the first low latency radio signal carries the low latency uplink control information, the first uplink control information is transmitted by physical layer data channel, the low latency uplink control channel is transmitted by physical layer data channel; a sum of a first ideal power and a second ideal power is less than or equal to a third power, the first power is equal to a first ideal power, the second power is equal to a second ideal power; or a sum of a first ideal power and a second ideal power is greater than a third power, the first power is equal to a product of a first ideal power and a scaling factor, the second power is equal to a product of a second ideal power and the scaling factor; the first ideal power is a transmission power of the given sub-radio signal without power scaling, the second ideal power is a transmission power of the given low latency radio signal without power scaling, the scaling factor is not less than 0 and not greater than or, the R time interval(s) is(are) out of the target time interval set, the first power is equal to a first ideal power, the first ideal power is a transmission power of the first radio signal without power scaling; the R power value(s) is(are) less or equal to a difference between a third power and a first power; the third power is a maximum total transmission power minus a fourth power, the fourth power is a total transmission power of the user equipment on the first time interval on carrier(s) other than the first carrier and the second carrier.

3. The method according to claim 2 , wherein R 3 low latency radio signal(s) comprises(comprise) time-domain resources occupied by R low latency radio signal(s) belong to the target time interval set, the R 3 is a positive integer; the R 3 low latency radio signal(s) is(are) comprised of the V 1 low latency radio signal(s), the V 2 low latency radio signal(s) and the V 3 low latency radio signal(s); the V 1 , V 2 , V 3 are non-negative integers respectively; a sum of the V 1 , the V 2 and the V 3 is equal to the R 3 ; the V 1 low latency radio signal(s) is(are) transmitted by physical layer control channel(s) respectively, the V 2 low latency radio signal(s) is(are) transmitted by physical layer data channel(s) respectively and comprises(comprise) the low latency uplink control information, the V 3 low latency radio signal(s) is(are) transmitted on the physical layer data and not comprises(comprise) the low latency uplink control information; the V 1 is greater than 0, the first low latency radio signal is a low latency radio signal with a maximum transmission power in the V 1 low latency radio signal(s) without power scaling; or the V 1 is equal to 0 and the V 2 is greater than 0, the first low latency radio signal is a low latency radio signal with a maximum transmission power in the V 2 low latency radio signals without power scaling; or the V 1 and the V 2 are both 0, the first low latency radio signal is a low latency radio signal with a maximum transmission power in the V 3 low latency radio signals without power scaling.

4. The method according to claim 2 , comprising:

receiving a first signaling, the first signaling is used to determine a first power control parameter, the first power control parameter comprises a configuration parameter of the first ideal power;

or, receiving a second signaling, the second signaling is used to determine a second power control parameter, the second power control parameter comprises a configuration parameter of the second ideal power;

or, receiving a first signaling and receiving a second signaling, the first signaling is used to determine a first power control parameter, the first power control parameter comprises a configuration parameter of the first ideal power, the second signaling is used to determine a second power control parameter, the second power control parameter comprises a configuration parameter of the second ideal power.

5. A user equipment for low latency communication, comprising:

a first transceiver, determining a first power, and transmitting a first radio signal on a first carrier;

a second transceiver, determining R power value(s), and transmitting R low latency radio signal(s) on a second carrier respectively;

wherein the first radio signal carries at least one of a first bit block and a first uplink control information; the first radio signal comprises L sub-radio signals, the L sub-radio signals occupy L time intervals respectively, the L is a positive integer greater than 1; time-domain resources occupied by the R low latency radio signal(s) belong to R time interval(s) respectively, the R time interval(s) is(are) R of the L time intervals, the R is a positive integer; each of the R low latency radio signal(s) carries at least one of a low latency bit block and low latency uplink control information; a target time interval set is composed by L 1 time interval(s), the L 1 time interval(s) is(are) L 1 of the L time intervals, the L 1 is a positive integer less than or equal to the L; at least a first time interval of the R time interval(s) belongs to the target time interval set, the R low latency radio signal(s) comprises(comprise) a first low latency radio signal, a receiving power of the first low latency radio signal is a second power, the first power is used to determine the second power or the second power is used to determine the first power, time-domain resources occupied by the first low latency radio signal belong to a first time interval; or the R time interval(s) is(are) out of the target time interval set, the first power is used to determine the R power value(s); the first time interval is one of the R time interval(s).

6. The user equipment according to claim 5 , wherein at least the first time interval of the R time interval(s) belongs to the target time interval set; the first radio signal carries the first bit block between the first bit block and the first uplink control information, the first low latency radio signal carries the low latency uplink control information; or the first radio signal carries the first uplink control information, the first low latency radio signal carries the low latency uplink control information, the first uplink control information is transmitted by physical layer data channel, the low latency uplink control information is transmitted by physical layer control channel; a first ideal power is less than or equal to a difference between a third power and a second power, the first power is equal to the first ideal power; or a first ideal power is greater than a difference between a third power and a second power, the first power is less than or equal to a difference between a third power and a second power; the second power is a transmission power of the first low latency radio signal without power scaling, the first ideal power is a transmission power of the first radio signal without power scaling; the third power is a maximum total transmission power minus a fourth power, the fourth power is a total transmission power of the user equipment on the first time interval on carrier(s) other than the first carrier and the second carrier.

7. The user equipment according to claim 6 , wherein R 3 low latency radio signal(s) comprises(comprise) time-domain resources occupied by R low latency radio signal(s) belong to the target time interval set, the R 3 is a positive integer; the R 3 low latency radio signal(s) is(are) comprised of the V 1 low latency radio signal(s), the V 2 low latency radio signal(s) and the V 3 low latency radio signal(s); the V 1 , V 2 , V 3 are non- negative integers respectively; a sum of the V 1 , the V 2 and the V 3 is equal to the R 3 ; the V 1 low latency radio signal(s) is(are) transmitted by physical layer control channel(s) respectively, the V 2 low latency radio signal(s) is(are) transmitted by physical layer data channel(s) respectively and comprises(comprise) the low latency uplink control information, the V 3 low latency radio signal(s) is(are) transmitted on the physical layer data and not comprises(comprise) the low latency uplink control information; the V 1 is greater than 0, the first low latency radio signal is a low latency radio signal with a maximum transmission power in the V 1 low latency radio signal(s) without power scaling; or the V 1 is equal to 0 and the V 2 is greater than 0, the first low latency radio signal is a low latency radio signal with a maximum transmission power in the V 2 low latency radio signals without power scaling; or the V 1 and the V 2 are both 0, the first low latency radio signal is a low latency radio signal with a maximum transmission power in the V 3 low latency radio signals without power scaling.

8. The user equipment according to claim 6 , wherein the first transceiver also receives a first signaling, the first signaling is used to determine a first power control parameter, the first power control parameter comprises a configuration parameter of the first ideal power.

9. The user equipment according to claim 5 , wherein at least the first time interval of the R time interval(s) belongs to the target time interval set; the first radio signal carries the first uplink control information, the first low latency radio signal carries the low latency bit block between the low latency bit block and the low latency uplink control information; or the first radio carries the first uplink control information, the first low latency radio signal carries the low latency uplink control information, the first uplink control information is transmitted by physical layer data channel, the low latency uplink control information is transmitted by physical layer data channel; a second ideal power is less than or equal to a difference between a third power and a first power, the second power is equal to the second ideal power; or a second ideal power is greater than a difference between a third power and a first power, the second power is less than or equal to a difference between a third power and a first power; the first power is a transmission power of the first radio signal without power scaling, the second ideal power is a transmission power of the first low latency radio signal without power scaling; the third power is a maximum total transmission power minus a fourth power, the fourth power is a total transmission power of the user equipment on the first time interval on carrier(s) other than the first carrier and the second carrier.

10. The user equipment according to claim 9 , wherein the second transceiver also receives a second signaling, the second signaling is used to determine a second power control parameter, the second power control parameter comprises a configuration parameter of the second ideal power.

11. The user equipment according to claim 5 , at least a first time interval of the R time interval(s) belongs to the target time interval set; the first radio signal carries the first bit block between the first bit block and the first uplink control information; the first low latency radio signal carries the low latency bit block between the low latency bit block and the low latency uplink control information; or the first radio signal carries the first uplink control information, the first low latency radio signal carries the low latency uplink control information, the first uplink control information is transmitted by physical layer control channel, the low latency uplink control information is transmitted by physical layer control channel; or the first radio signal carries a first uplink control information, the first low latency radio signal carries the low latency uplink control information, the first uplink control information is transmitted by physical layer data channel, the low latency uplink control channel is transmitted by physical layer data channel; a sum of a first ideal power and a second ideal power is less than or equal to a third power, the first power is equal to a first ideal power, the second power is equal to a second ideal power; or a sum of a first ideal power and a second ideal power is greater than a third power, the first power is equal to a product of a first ideal power and a scaling factor, the second power is equal to a product of a second ideal power and the scaling factor; the first ideal power is a transmission power of the given sub-radio signal without power scaling, the second ideal power is a transmission power of the given low latency radio signal without power scaling, the scaling factor is not less than 0 and not greater than 1.

12. The user equipment according to claim 5 , wherein the R time interval(s) is(are) out of the target time interval set, the first power is equal to a first ideal power, the first ideal power is a transmission power of the first radio signal without power scaling; the R power value(s) is(are) less or equal to a difference between a third power and a first power; the third power is a maximum total transmission power minus a fourth power, the fourth power is a total transmission power of the user equipment on the first time interval on carrier(s) other than the first carrier and the second carrier.