Method and device in communication node for wireless communication
View Patent ↗The disclosure provides method and device in communication node for wireless communication. The communication node receives a first signaling and a first signal, and transmits a second signal; wherein the first signaling is used for determining a first offset; the first signal is used for determining a first measurement result; the second signal includes N second sub-signal(s), a first sequence is used for determining the N second sub-signal(s). In view of the problems that the method to determine repetitions of a preamble sequence is not applicable to a large-latency network and that multiple attempts of random access in a large-latency network will cause a larger latency, the disclosure provides an offset based scheme, in which the communication node introduces the first offset when determining the repetitions of a preamble sequence, thereby selecting an more appropriate number of repetitions, improving the successful probability of random access and reducing latency.
1. A first node for wireless communication, comprising:
a first receiver, to receive a third signaling, a first signaling and a first signal; and
a first transmitter, to transmit a second signal;
wherein the first signaling is used for determining a first offset; the third signaling is used for determining M first-type offsets the first offset is one of the M first-type offsets; a first parameter is used for selecting the first offset from the M first-type offsets; and the first parameter is related to a parameter of a transmitter of the first signal; the first signal is used for determining a first measurement result; the second signal comprises N second sub-signal(s), a first sequence is used for determining the N second sub-signal(s); the first measurement result and the first offset are both used for determining the N; the N is a positive integer, and the second signal is used for initiating a random access.
2. The first node according to claim 1 , wherein the first measurement result and the first offset are used for determining a first level, and the first level is associated to the N.
3. The first node according to claim 2 , wherein a summation of the first measurement result and the first offset is used for determining the first level; or the first measurement result is used for determining a second level, and a summation of the second level and the first offset is used for determining the first level.
4. The first node according to claim 1 , comprising:
the first receiver, to receive a second signaling;
wherein the second signaling comprises a first time-frequency resource set; the first measurement result and the first offset are used for selecting a first time-frequency resource from the first time-frequency resource set; and the second signal is associated to the first time-frequency resource.
5. The first node according to claim 1 , the second signal is transmitted on a PRACH.
6. The first node according to claim 1 , wherein the first offset is related to a parameter of the transmitter of the first signal.
7. The first node according to claim 1 , wherein the first offset is related to a relationship between the first node and the transmitter of the first signal.
8. The first node according to claim 1 , wherein the first offset is related to a number of first transmission times; a number of transmission times of the second signal is used for determining the number of first transmission times.
9. The first node according to claim 1 , comprising:
the first receiver, to start a first timer at a first time; and
the first receiver, to receive a third signal in a second time window;
wherein the first timer is used for determining a first time window; the first node does not monitor a candidate signaling in the first time window; the first time is used for determining a start of the first time window; the first time is related to a transmitting time of the second signal; a parameter of the transmitter of the first signal is used for determining a length of the first time window; a start of the second time window is an end of the first time window; and a length of the second time window is related to the N.
10. The first node according to claim 9 , wherein the first node begins to monitor the candidate signaling once the first timer expires.
11. A method in a first node for wireless communication, comprising:
receiving a third signaling, a first signaling and a first signal; and
transmitting a second signal;
wherein the first signaling is used for determining a first offset; the third signaling is used for determining M first-type offsets the first offset is one of the M first-type offsets; a first parameter is used for selecting the first offset from the M first-type offsets; and the first parameter is related to a parameter of a transmitter of the first signal; the first signal is used for determining a first measurement result; the second signal comprises N second sub-signal(s), a first sequence is used for determining the N second sub-signal(s); the first measurement result and the first offset are both used for determining the N; the N is a positive integer, and the second signal is used for initiating a random access.
12. The method in the first node for wireless communication according to claim 11 , wherein the first measurement result and the first offset are used for determining a first level, and the first level is associated to the N.
13. The method in the first node for wireless communication according to claim 12 , wherein a summation of the first measurement result and the first offset is used for determining the first level; or the first measurement result is used for determining a second level, and a summation of the second level and the first offset is used for determining the first level.
14. The method in the first node for wireless communication according to claim 11 , comprising:
receiving a second signaling
wherein the second signaling comprises a first time-frequency resource set; the first measurement result and the first offset are used for selecting a first time-frequency resource from the first time-frequency resource set; and the second signal is associated to the first time-frequency resource.
15. The method in the first node for wireless communication according to claim 11 , the second signal is transmitted on a PRACH.
16. The method in the first node for wireless communication according to claim 11 , wherein the first offset is related to a parameter of the transmitter of the first signal.
17. The method in the first node for wireless communication according to claim 11 , wherein the first offset is related to a relationship between the first node and the transmitter of the first signal.
18. The method in the first node for wireless communication according to claim 11 , wherein the first offset is related to a number of first transmission times; a number of transmission times of the second signal is used for determining the number of first transmission times.
19. The method in the first node for wireless communication according to claim 11 , comprising:
starting a first timer at a first time; and
receiving a third signal in a second time window;
wherein the first timer is used for determining a first time window; the first node does not monitor a candidate signaling in the first time window; the first time is used for determining a start of the first time window; the first time is related to a transmitting time of the second signal; a parameter of the transmitter of the first signal is used for determining a length of the first time window; a start of the second time window is an end of the first time window; and a length of the second time window is related to the N.
20. A second node for wireless communication, comprising:
a second transmitter, to transmit a third signaling, a first signaling and a first signal; and
a second receiver, to receive a second signal;
wherein the first signaling is used for determining a first offset; the third signaling is used for determining M first-type offsets the first offset is one of the M first-type offsets; a first parameter is used for selecting the first offset from the M first-type offsets; and the first parameter is related to a parameter of a transmitter of the first signal; the first signal is used for determining a first measurement result; the second signal comprises N second sub-signal(s), a first sequence is used for determining the N second sub-signal(s); the first measurement result and the first offset are both used for determining the N; the N is a positive integer, and the second signal is used for initiating a random access.