Method and device in node used for wireless communication
View Patent ↗The present disclosure provides a method and a device in a node used for wireless communication. A first node receives a first signal to determine a first channel quality; determines a first speed; and determines whether a first resource pool comprises a first time-frequency resource block; selects a target time-frequency resource block from the first resource pool; and transmits a second signal in the target time-frequency resource block; herein, the first speed is a speed of mobility of the first node; the first resource pool comprises multiple time-frequency resource blocks, whether the first resource pool comprises the first time-frequency resource block is dependent on the first speed. The present disclosure takes into account the speed of mobility of a user in resources sensing, thus ensuring that the channel quality which autonomously selects resources meets the current transmission requirements.
1. A method in a first node for wireless communications, comprising:
receiving a first signal so as to determine a first channel quality;
determining a first speed;
determining whether a first resource pool comprises a first time-frequency resource block;
selecting a target time-frequency resource block from the first resource pool; and
transmitting a second signal in the target time-frequency resource block;
wherein the first speed is a speed of mobility of the first node; the first resource pool comprises multiple time-frequency resource blocks, and whether the first resource pool comprises the first time-frequency resource block is dependent on the first speed;
when the first channel quality is lower than a first threshold, determining that the first resource pool comprises the first time-frequency resource block; when the first channel quality is higher than a first threshold, determining that the first resource pool does not comprise the first time-frequency resource block;
wherein the first threshold is related to the first speed;
or, when the first channel quality is lower than a first threshold and the first speed is lower than a second threshold, determining that the first resource pool comprises the first time-frequency resource block; when the first channel quality is not lower than a first threshold or the first speed is not lower than a second threshold, determining that the first resource pool does not comprises the first time-frequency resource block.
2. The method according to claim 1 , comprising:
receiving two first-type signals, and the two first-type signals respectively indicating two positions;
wherein time-domain resources occupied by the two first-type signals are orthogonal; the first speed is related to a difference between two distances, the speed of mobility of the first node is a speed of mobility between the first node and a transmitter of the first signal; the two distances are respectively distances from the two positions to two reference positions.
3. The method according to claim 2 , comprising:
receiving a second-type signal, and determining the two reference positions according to the second-type signal;
wherein a transmitter of the second-type signal and the transmitter of the first signal are non-co-located.
4. The method according to claim 1 , comprising:
measuring Q second-type channel parameters for Q time-frequency resource blocks respectively, Q being a positive integer greater than 1;
wherein the first time-frequency resource block is one of the Q time-frequency resource blocks, and a second-type channel parameter measured for the first time-frequency resource block is a smallest value among the Q second-type channel parameters.
5. A method in a second node for wireless communications, comprising:
transmitting a first signal;
wherein the first signal is used for determining a first channel quality; a first speed is a speed of mobility of the first node; a first resource pool comprises multiple time-frequency resource blocks, and whether the first resource pool comprises a first time-frequency resource block is dependent on the first speed; a target time-frequency resource block is selected from the first resource pool; the target time-frequency resource block is used for transmitting a second signal;
when the first channel quality is lower than a first threshold, it is determined that the first resource pool comprises the first time-frequency resource block; when the first channel quality is higher than a first threshold, it is determined that the first resource pool does not comprise the first time-frequency resource block; the first threshold is related to the first speed;
or, when the first channel quality is lower than a first threshold and the first speed is lower than a second threshold, it is determined that the first resource pool comprises the first time-frequency resource block; when the first channel quality is not lower than a first threshold or the first speed is not lower than a second threshold, it is determined that the first resource pool does not comprise the first time-frequency resource block.
6. The method according to claim 5 , comprising:
transmitting two first-type signals, and the two first-type signals respectively indicating two positions;
wherein time-domain resources occupied by the two first-type signals are orthogonal; the first speed is related to a difference between two distances, the speed of mobility of the first node is a speed of mobility between the first node and a transmitter of the first signal; the two distances are respectively distances from the two positions to two reference positions.
7. The method according to claim 6 , wherein a second-type signal is used for determining the two reference positions; a transmitter of the second-type signal and the transmitter of the first signal are non-co-located.
8. The method according to claim 5 , wherein Q second-type channel parameters are respectively measured for Q time-frequency resource blocks; the first time-frequency resource block is one of the Q time-frequency resource blocks; and a second-type channel parameter measured for the first time-frequency resource block is a smallest value among the Q second-type channel parameters, Q being a positive integer greater than 1.
9. A first node for wireless communications, comprising:
a first receiver, receiving a first signal so as to determine a first channel quality;
wherein the first receiver determines a first speed;
and the first receiver determines whether a first resource pool comprises a first time-frequency resource block;
a first transmitter, selecting a target time-frequency resource block from a first resource pool;
wherein the first transmitter transmits a second signal in the target time-frequency resource block;
wherein the first speed is a speed of mobility of the first node; the first resource pool comprises multiple time-frequency resource blocks, and whether the first resource pool comprises the first time-frequency resource block is dependent on the first speed;
when the first channel quality is lower than a first threshold, the first receiver determines that the first resource pool comprises the first time-frequency resource block; when the first channel quality is higher than a first threshold, the first receiver determines that the first resource pool does not comprise the first time-frequency resource block;
wherein the first threshold is related to the first speed;
or, when the first channel quality is lower than a first threshold and the first speed is lower than a second threshold, the first receiver determines that the first resource pool comprises the first time-frequency resource block; when the first channel quality is not lower than a first threshold or the first speed is not lower than a second threshold, the first receiver determines that the first resource pool does not comprises the first time-frequency resource block.
10. The first node according to claim 9 , comprising:
the first receiver, receiving two first-type signals, and the two first-type signals respectively indicating two positions;
wherein time-domain resources occupied by the two first-type signals are orthogonal; the first speed is related to a difference between two distances, the speed of mobility of the first node is a speed of mobility between the first node and a transmitter of the first signal; the two distances are respectively distances from the two positions to two reference positions.
11. The first node according to claim 10 , comprising:
the first receiver, receiving a second-type signal, and determining the two reference positions according to the second-type signal;
wherein a transmitter of the second-type signal and the transmitter of the first signal are non-co-located.
12. The first node according to claim 9 , comprising:
the first receiver, measuring Q second-type channel parameters for Q time-frequency resource blocks respectively, Q being a positive integer greater than 1;
wherein the first time-frequency resource block is one of the Q time-frequency resource blocks, and a second-type channel parameter measured for the first time-frequency resource block is a smallest value among the Q second-type channel parameters.
13. A second node for wireless communications, comprising:
a second transmitter, transmitting a first signal;
wherein the first signal is used for determining a first channel quality; a first speed is a speed of mobility of the first node; a first resource pool comprises multiple time-frequency resource blocks, and whether the first resource pool comprises a first time-frequency resource block is dependent on the first speed; a target time-frequency resource block is selected from the first resource pool; the target time-frequency resource block is used for transmitting a second signal;
when the first channel quality is lower than a first threshold, it is determined that the first resource pool comprises the first time-frequency resource block; when the first channel quality is higher than a first threshold, it is determined that the first resource pool does not comprise the first time-frequency resource block; the first threshold is related to the first speed;
or, when the first channel quality is lower than a first threshold and the first speed is lower than a second threshold, it is determined that the first resource pool comprises the first time-frequency resource block; when the first channel quality is not lower than a first threshold or the first speed is not lower than a second threshold, it is determined that the first resource pool does not comprise the first time-frequency resource block.
14. The second node according to claim 13 , comprising:
the second transmitter, transmitting two first-type signals, and the two first-type signals respectively indicating two positions;
wherein time-domain resources occupied by the two first-type signals are orthogonal; the first speed is related to a difference between two distances, the speed of mobility of the first node is a speed of mobility between the first node and a transmitter of the first signal; the two distances are respectively distances from the two positions to two reference positions.
15. The second node according to claim 14 , wherein a second-type signal is used for determining the two reference positions; a transmitter of the second-type signal and the transmitter of the first signal are non-co-located.
16. The second node according to claim 13 , wherein Q second-type channel parameters are respectively measured for Q time-frequency resource blocks; the first time-frequency resource block is one of the Q time-frequency resource blocks; and a second-type channel parameter measured for the first time-frequency resource block is a smallest value among the Q second-type channel parameters, Q being a positive integer greater than 1.