Method and device in communication node used for wireless communication

1. A method in a first-type communication node used for wireless communications, comprising:

receiving first information and second information;

transmitting a first radio signal in a first time window; and

transmitting a second radio signal;

wherein the first information is used for determining a target time window, the second radio signal occupies a second time window in time domain, and the second information is used for determining at least one of whether the second time window belongs to the target time window or a relative position relationship between the second time window and the target time window; an end of the first time window is earlier than a start of the target time window, a radio resource occupied by the first radio signal is used for determining at least one of a frequency-domain resource occupied by the second radio signal, a code-domain resource occupied by the second radio signal or a Modulation and Coding Scheme employed by the second radio signal; the first information, the second information, the first radio signal and the second radio signal are all transmitted via an air interface; the first radio signal is generated by a characteristic sequence, and the characteristic sequence is a Zadoff-Chu (ZC) sequence; the first information is cell-specific, the second information is cell-specific; the first time window is a slot with a given subcarrier spacing, the target time window is a slot with a given subcarrier spacing.

2. The method according to claim 1 , wherein the second time window belongs to the target time window, a time length of a time interval between an end of the second time window and an end of the target time window is no less than a difference between a time length of the first time window and a time length occupied by the first radio signal; the time length of the time interval between the end of the second time window and the end of the target time window is equal to a time length of a positive integer number of multicarrier symbol(s) with a given subcarrier spacing.

3. The method according to claim 1 , wherein a timing for the target time window is relevant to a timing for the first time window, and a time interval from the end of the first time window to the start of the target time window is no less than X millisecond(s), X being positive which is pre-defined or configurable.

4. The method according to claim 1 , further comprising:

receiving third information;

wherein the third information is used for indicating P candidate radio resources, and a radio resource occupied by the first radio signal is one of the P candidate radio resources, P being a positive integer, the third information is transmitted via the air interface; the first information and the third information are transmitted as different information elements in a same RRC signaling; the first-type communication node randomly selects the radio resource occupied by the first radio signal from the P candidate radio resources; an ordering index of the radio resource occupied by the first radio signal among the P candidate radio resources is used for determining at least one of a frequency-domain resource occupied by the second radio signal, a code-domain resource occupied by the second radio signal or a Modulation and Coding Scheme employed by the second radio signal.

5. The method according to claim 1 , wherein a transmitter of the first radio signal transmits the first radio signal in the first time window according to a time for reception of a boundary of a downlink slot serving as a start time for a transmission of the first radio signal.

6. The method according to claim 1 , wherein the relative position relationship between the second time window and the target time window comprises a time-domain relation between a start of the second time window and a start of the target time window.

7. The method according to claim 1 , wherein the first information and the second information are transmitted as two different fields in a same signaling, the first information is used for indicating at least one of a time length of a time interval between a start of the target time window and a start of the first time window, or a time length of the target time window.

8. A method in a second-type communication node used for wireless communications, comprising:

transmitting first information and second information;

monitoring a first radio signal in a first time window; and

receiving a second radio signal when the first radio signal is detected;

wherein the first information is used for determining a target time window, the second radio signal occupies a second time window in time domain, and the second information is used for determining at least one of whether the second time window belongs to the target time window or a relative position relationship between the second time window and the target time window; an end of the first time window is earlier than a start of the target time window, a radio resource occupied by the first radio signal is used for determining at least one of a frequency-domain resource occupied by the second radio signal, a code-domain resource occupied by the second radio signal or a Modulation and Coding Scheme employed by the second radio signal; the first information, the second information, the first radio signal and the second radio signal are all transmitted via an air interface; the first radio signal is generated by a characteristic sequence, and the characteristic sequence is a Zadoff-Chu (ZC) sequence; the first information is cell-specific, the second information is cell-specific; the first time window is a slot with a given subcarrier spacing, the target time window is a slot with a given subcarrier spacing.

9. The method according to claim 8 , wherein the second time window belongs to the target time window, a time length of a time interval between an end of the second time window and an end of the target time window is no less than a difference between a time length of the first time window and a time length occupied by the first radio signal; the time length of the time interval between the end of the second time window and the end of the target time window is equal to a time length of a positive integer number of multicarrier symbol(s) with a given subcarrier spacing.

10. The method according to claim 8 , wherein a timing for the target time window is relevant to a timing for the first time window, and a time interval from the end of the first time window to the start of the target time window is no less than X millisecond(s), X being positive which is pre-defined or configurable.

11. The method according to claim 8 , further comprising:

transmitting third information;

wherein the third information is used for indicating P candidate radio resources, and a radio resource occupied by the first radio signal is one of the P candidate radio resources, P being a positive integer, the third information is transmitted via the air interface; the first information and the third information are transmitted as different information elements in a same RRC signaling; the first-type communication node randomly selects the radio resource occupied by the first radio signal from the P candidate radio resources; an ordering index of the radio resource occupied by the first radio signal among the P candidate radio resources is used for determining at least one of a frequency-domain resource occupied by the second radio signal, a code-domain resource occupied by the second radio signal or a Modulation and Coding Scheme employed by the second radio signal.

12. The method according to claim 8 , wherein a transmitter of the first radio signal transmits the first radio signal in the first time window according to a time for reception of a boundary of a downlink slot serving as a start time for a transmission of the first radio signal.

13. The method according to claim 8 , wherein the relative position relationship between the second time window and the target time window comprises a time-domain relation between a start of the second time window and a start of the target time window.

14. A first-type communication node used for wireless communications, comprising:

a first receiver, receiving first information and second information;

a first transmitter, transmitting a first radio signal in a first time window; and

a second transmitter, transmitting a second radio signal;

wherein the first information is used for determining a target time window, the second radio signal occupies a second time window in time domain, and the second information is used for determining at least one of whether the second time window belongs to the target time window or a relative position relationship between the second time window and the target time window; an end of the first time window is earlier than a start of the target time window, a radio resource occupied by the first radio signal is used for determining at least one of a frequency-domain resource occupied by the second radio signal, a code-domain resource occupied by the second radio signal or a Modulation and Coding Scheme employed by the second radio signal; the first information, the second information, the first radio signal and the second radio signal are all transmitted via an air interface; the first radio signal is generated by a characteristic sequence, and the characteristic sequence is a Zadoff-Chu (ZC) sequence; the first information is cell-specific, the second information is cell-specific; the first time window is a slot with a given subcarrier spacing, the target time window is a slot with a given subcarrier spacing.

15. The first-type communication node according to claim 14 , wherein the second time window belongs to the target time window, a time length of a time interval between an end of the second time window and an end of the target time window is no less than a difference between a time length of the first time window and a time length occupied by the first radio signal; the time length of the time interval between the end of the second time window and the end of the target time window is equal to a time length of a positive integer number of multicarrier symbol(s) with a given subcarrier spacing.

16. The first-type communication node according to claim 14 , wherein a timing for the target time window is relevant to a timing for the first time window, and a time interval from the end of the first time window to the start of the target time window is no less than X millisecond(s), X being positive which is pre-defined or configurable.

17. The first-type communication node according to claim 14 , wherein the first receiver receives third information; wherein the third information is used for indicating P candidate radio resources, and a radio resource occupied by the first radio signal is one of the P candidate radio resources, P being a positive integer, the third information is transmitted via the air interface; the first information and the third information are transmitted as different information elements in a same RRC signaling; the first-type communication node randomly selects the radio resource occupied by the first radio signal from the P candidate radio resources; an ordering index of the radio resource occupied by the first radio signal among the P candidate radio resources is used for determining at least one of a frequency-domain resource occupied by the second radio signal, a code-domain resource occupied by the second radio signal or a Modulation and Coding Scheme employed by the second radio signal.

18. The first-type communication node according to claim 14 , wherein a transmitter of the first radio signal transmits the first radio signal in the first time window according to a time for reception of a boundary of a downlink slot serving as a start time for a transmission of the first radio signal.

19. The first-type communication node according to claim 14 , wherein the relative position relationship between the second time window and the target time window comprises a time-domain relation between a start of the second time window and a start of the target time window.

20. The first-type communication node according to claim 14 , wherein the first information and the second information are transmitted as two different fields in a same signaling, the first information is used for indicating at least one of a time length of a time interval between a start of the target time window and a start of the first time window, or a time length of the target time window.