Method and device in communication nodes for wireless communication
View Patent ↗The present disclosure provides a method and device in a communication node for wireless communications. A communication node receives a first signaling; transmits a first signal; receives a second signal; transmits a third signal; and when a first condition is satisfied, transmits a fourth signal; the first signaling comprises K1 first-type signal(s) and K2 second-type signal(s); the K1 first-type signals(s) is(are) different from the K2 second-type signal(s); a sum of K1 and K2 is of a fixed magnitude; the K1 and the K2 are both positive integers; the first signal is one of the K1 first-type signal(s); the fourth signal is one of the K2 second-type signal(s); the second signal is used for determining time-frequency resources of the third signal; the first condition is related to a parameter of the third signal. The present disclosure allows that a preamble group is reselected to improve probability of random access success.
1. A first node for wireless communications, comprising:
a first receiver, receiving a first signaling;
a first transmitter, transmitting one or more time(s) of a first signal;
the first receiver receiving a second signal; wherein:
the first transmitter transmitting one or more time(s) of a third signal;
the third signal comprises a Message 3 (MSG3); and
when a first condition is satisfied, the first transmitter transmits a fourth signal;
the first receiver receiving a second signaling;
the first signaling comprises K1 first-type signal(s) and K2 second-type signal(s);
the K1 first-type signals(s) is (are) different from the K2 second-type signal(s);
a sum of K1 and K2 is of a fixed magnitude;
the K1 and the K2 are both positive integers;
the first signal is one of the K1 first-type signal(s);
the fourth signal is one of the K2 second-type signal(s);
the second signal is used for determining time-frequency resources of the third signal;
the first condition is related to a parameter of the third signal; and
the first signal and the fourth signal are both used for initiating a same Random Access (RA) procedure; the second signaling is used for determining a second reference threshold; the parameter of the third signal comprises a first count value; transmission time(s) of the third signal is (are) used for determining the first count value; when the first count value is greater than the second reference threshold, the first condition is satisfied; and the first count value is a non-negative integer; the second signaling is used for determining a third reference threshold; the first condition is related to a second count value; the second count value is used for determining transmission time(s) of the first signal; when the second count value is greater than the third reference threshold, the first condition is satisfied; the third reference threshold is configurable; and the second count value is a non-negative integer; the first condition is related to the first count value, and the first condition is related to the second count value; the second count value is not less than the first count value.
2. The first node according to claim 1 ,
wherein the second signaling is used for determining a first reference threshold; the parameter of the third signal comprises a packet size of the third signal; and when the packet size of the third signal is greater than the first reference threshold, the first condition is satisfied.
3. The first node according to claim 1 , comprising:
the first receiver receiving a third signaling;
wherein the third signaling is used for determining whether the first condition is effective; and the third signaling is related to a parameter of a transmitter of the third signaling.
4. The first node according to claim 1 , comprising:
the first receiver receiving a fourth signaling;
wherein the fourth signaling is used for determining K3 parameter(s); K3 is a positive integer; the K3 parameter(s) is (are) related to a first RA procedure; and the K3 parameter(s) is (are) used for performing a next RA procedure.
5. The first node according to claim 1 , wherein the first condition comprises that the first count value is greater than a first threshold, and the second count value is greater than a second threshold.
6. The first node according to claim 1 , wherein the first condition comprises that a ratio of the first count value to the second count value is greater than a third threshold.
7. The first node according to claim 1 , wherein the first node maintains a first counter; the first counter is used for determining the first count value; an initial value of the first count value is 0; each time the third signal is transmitted, the first count value is increased by 1; a maximum value of the first count value is a maximum allowable transmission time(s) of the third signal; and the first count value is not greater than the second count value.
8. A method in a first node for wireless communications, comprising:
receiving a first signaling;
transmitting one or more time(s) of a first signal;
receiving a second signal;
transmitting one or more time(s) of a third signal, the third signal comprising a Message 3 (Msg3); and
when a first condition is satisfied, transmitting a fourth signal;
receiving a second signaling;
wherein:
the first signaling comprises K1 first-type signal(s) and K2 second-type signal(s);
the K1 first-type signals(s) is (are) different from the K2 second-type signal(s);
a sum of K1 and K2 is of a fixed magnitude;
the K1 and the K2 are both positive integers;
the first signal is one of the K1 first-type signal(s);
the fourth signal is one of the K2 second-type signal(s);
the second signal is used for determining time-frequency resources of the third signal;
the first condition is related to a parameter of the third signal; and
the first signal and the fourth signal are both used for initiating a same RA procedure; the second signaling is used for determining a second reference threshold; the parameter of the third signal comprises a first count value; transmission time(s) of the third signal is (are) used for determining the first count value; when the first count value is greater than the second reference threshold, the first condition is satisfied; and the first count value is a non-negative integer; the second signaling is used for determining a third reference threshold; the first condition is related to a second count value; the second count value is used for determining transmission time(s) of the first signal; when the second count value is greater than the third reference threshold, the first condition is satisfied; the third reference threshold is configurable; and the second count value is a non-negative integer; the first condition is related to the first count value, and the first condition is related to the second count value; the second count value is not less than the first count value.
9. The method in a first node for wireless communications according to claim 8 ,
wherein the second signaling is used for determining a first reference threshold; the parameter of the third signal comprises a packet size of the third signal; and when the packet size of the third signal is greater than the first reference threshold, the first condition is satisfied.
10. The method in a first node for wireless communications according to claim 8 , comprising:
receiving a third signaling;
wherein the third signaling is used for determining whether the first condition is effective; and the third signaling is related to a parameter of a transmitter of the third signaling.
11. The method in a first node for wireless communications according to claim 8 , comprising:
receiving a fourth signaling;
wherein the fourth signaling is used for determining K3 parameter(s); K3 is a positive integer; the K3 parameter(s) is (are) related to a first RA procedure; and the K3 parameter(s) is (are) used for performing a next RA procedure.