Method and device in node used for wireless communication
The present disclosure provides a method and a device in node used for wireless communication. The communication node first performs X first-type measurement(s) in a target time-frequency resource pool, and the X first-type measurement(s) is (are respectively) used for acquiring X first-type measurement value(s); performs a target second-type measurement, the target second-type measurement being used for acquiring a second-type measurement value; and then transmits a first radio signal. Herein, the X first-type measurement value(s) is(are) used for the target second-type measurement, and the target time-frequency resource pool is one of Q alternative time-frequency resource pools related to a Subcarrier Spacing (SCS) of subcarriers occupied by the first radio signal; there exist two of the Q alternative time-frequency resource pools that comprise different time-frequency resources.
1. A method in a first-type communication node for wireless communications, comprising:
receiving first information, the first information being transmitted via a first higher layer signaling, or the first information comprising all or part of fields in a first Information Element (IE) of a first piece of Radio Resource Control (RRC) layer information;
receiving second information, the second information being transmitted via a second higher layer signaling, or the second information comprising all or part of fields in a second IE of a second piece of RRC layer information;
performing X first-type measurement(s) in a target time-frequency resource pool, the X first-type measurement(s) being respectively used for acquiring X first-type measurement value(s), any of the X first-type measurement value(s) being a Sidelink Received Signal Strength Indicator (S-RSSI) value, X being a positive integer;
performing a target second-type measurement, the target second-type measurement being a measurement on Channel Busy Ratio (CBR), the target second-type measurement being used for acquiring a second-type measurement value; and
transmitting a first signaling and a first radio signal;
wherein the first signaling is transmitted through a Physical Sidelink Control Channel (PSCCH), and the first radio signal is transmitted through a Physical Sidelink Shared Channel (PSSCH); the first signaling is used for indicating at least one of a modulation coding scheme (MCS) employed by the first radio signal or time-frequency resources occupied by the first radio signal; the time-frequency resources occupied by the first radio signal comprises a number of sub-channels occupied by the first radio signal; the X first-type measurement value(s) is (are) used for the target second-type measurement, and the target time-frequency resource pool is one of Q alternative time-frequency resource pools related to a Subcarrier Spacing (SCS) of subcarriers occupied by the first radio signal, Q being a positive integer greater than 1; each of X1 first-type measurement value(s) of the X first-type measurement value(s) is greater than a target threshold, the second-type measurement value acquired after performing the target second-type measurement is equal to a ratio of X1 to the X, X1 being a non-negative integer no greater than the X; the first information is used for determining the target threshold; there exist two of the Q alternative time-frequency resource pools that comprise different time-frequency resources; the second-type measurement value acquired after performing the target second-type measurement is used for determining at least one of the MCS employed by the first radio signal or time-frequency resources occupied by the first radio signal; the Q alternative time-frequency resource pools respectively correspond to Q alternative SCSs, one of the Q alternative SCSs corresponding to the target time-frequency resource pool is the same as the SCS of subcarriers occupied by the first radio signal; any of the Q alternative time-frequency resource pools consists of a group of time-frequency resource subpools that occur periodically in time domain, and periods of time-frequency resource subpools respectively comprised in at least two alternative time-frequency resource pools in the Q alternative time-frequency resource pools are different; and
the second-type measurement value acquired after performing the target second-type measurement belongs to a target interval, the target interval is one of P alternative intervals, any of the P alternative intervals is an interval of non-negative real numbers, the P alternative intervals respectively correspond to P alternative MCS sets, the P alternative intervals respectively correspond to P alternative resource numerical value sets, P being a positive integer greater than 1; the P alternative MCS sets are configured, the P alternative resource numerical value sets are configured; an alternative MCS set of the P alternative MCS sets that corresponds to the target interval is a first MCS set, and an alternative resource numerical value set of the P alternative resource numerical value sets that corresponds to the target interval is a first resource numerical value set; the second information is used for determining at least one of the MCS employed by the first radio signal or the time-frequency resources occupied by the first radio signal, the MCS employed by the first radio signal is one MCS in the first MCS set, and a number of the time-frequency resources occupied by the first radio signal is equal to a resource numerical value in the first resource numerical value set; the second information being used for determining at least one of the MCS employed by the first radio signal or the time-frequency resources occupied by the first radio signal means that the second information is used for indicating that the P alternative intervals, the second-type measurement value acquired by performing the target second-type measurement and the P alternative intervals are used for determining at least one of the MCS employed by the first radio signal or the time-frequency resources occupied by the first radio signal.
2. The method according to claim 1 , wherein all time-frequency resource subpools of the Q alternative time-frequency resource pools occupy equal numbers of multicarrier symbols, and a time interval length of time-domain resources comprised in each time-frequency resource subpool of the Q alternative time-frequency resource pools is related to its corresponding SCS, or, a number of multicarrier symbols occupied by any time-frequency resource subpool of the Q alternative time-frequency resource pools is related to its corresponding SCS.
3. The method according to claim 1 , wherein the target time-frequency resource pool comprises X time-frequency unit(s), any of the X time-frequency unit(s) occupies one sub-channel in frequency domain and one slot in time domain; the X first-type measurement(s) is (are respectively) performed in the X time-frequency unit(s); a characteristic measurement value is one of the X first-type measurement value(s), one of the X first-type measurement(s) used for acquiring the characteristic measurement value is performed in a characteristic time-frequency unit, the characteristic time-frequency unit is one of the X time-frequency unit(s).
4. The method according to claim 1 , wherein at least two of the Q alternative time-frequency resource pools are overlapping in time domain; each of the Q alternative time-frequency resource pools belongs to a first time window in time domain, the time length of the first time window is 100 ms, the target second-type measurement is performed in a second time window, an end time of the first time window is no later than a start time of the second time window, and an end time of the second time window is no later than a start time for transmission of the first radio signal.
5. The method according to claim 1 , wherein a second measurer performs Y third-type measurement(s) in a third time window, any of the Y third-type measurement(s) is a measurement on Channel occupancy Ratio (CR), the Y third-type measurement(s) is (are respectively) used for acquiring Y third-type measurement value(s), Y being a positive integer; wherein the second-type measurement value acquired after performing the target second-type measurement is used for determining a first upper bound, a sum of the Y third-type measurement value(s) is no greater than the first upper bound, a time-domain position of the third time window is related to time-frequency resources occupied by the first radio signal, and the Y third-type measurement value(s) is related to a number of time-frequency resources occupied by a radio signal transmitted by a transmitter of the first radio signal in the third time window.
6. The method according to claim 1 , wherein frequency resources respectively comprised in at least two of the Q alternative time-frequency resource pools belong to a first subband, and the first subband comprises a Bandwidth Part (BWP).
7. The method according to claim 1 , wherein any two of the Q alternative time-frequency resource pools respectively belong to different BWPs; or, at least two of the Q alternative time-frequency resource pools respectively belong to different BWPs.
8. A method in a second-type communication node for wireless communications, comprising:
transmitting first information, the first information being transmitted via a first higher layer signaling, or the first information comprising all or part of fields in a first Information Element (IE) of a first piece of Radio Resource Control (RRC) layer information;
transmitting second information, the second information being transmitted via a second higher layer signaling, or the second information comprising all or part of fields in a second IE of a second piece of RRC layer information;
wherein X first-type measurement(s) performed in a target time-frequency resource pool is (are) used for acquiring X first-type measurement value(s), any of the X first-type measurement value(s) is a Sidelink Received Signal Strength Indicator (S-RSSI) value, X being a positive integer; the target time-frequency resource pool is one of Q alternative time-frequency resource pools related to a Subcarrier Spacing of subcarriers occupied by a first radio signal, and there exist two of the Q alternative time-frequency resource pools that comprise different time-frequency resources, Q being a positive integer greater than 1; the X first-type measurement value(s) is (are) used for a target second-type measurement, the target second-type measurement is a measurement on Channel Busy Ratio (CBR), the target second-type measurement is used for acquiring a second-type measurement value, and the second-type measurement value acquired after performing the target second-type measurement is used for determining at least one of a modulation coding scheme (MCS) employed by the first radio signal or time-frequency resources occupied by the first radio signal; the time-frequency resources occupied by the first radio signal comprises a number of sub-channels occupied by the first radio signal; the first radio signal is transmitted through a Physical Sidelink Shared Channel (PSSCH); each of X1 first-type measurement value(s) of the X first-type measurement value(s) is greater than a target threshold, the second-type measurement value acquired after performing the target second-type measurement is equal to a ratio of X1 to the X, X1 being a non-negative integer no greater than the X, and the first information is used for determining the target threshold; the Q alternative time-frequency resource pools respectively correspond to Q alternative SCSs, one of the Q alternative SCSs corresponding to the target time-frequency resource pool is the same as the SCS of subcarriers occupied by the first radio signal; any of the Q alternative time-frequency resource pools consists of a group of time-frequency resource subpools that occur periodically in time domain, and periods of time-frequency resource subpools respectively comprised in at least two alternative time-frequency resource pools in the Q alternative time-frequency resource pools are different; and
the second-type measurement value acquired after performing the target second-type measurement belongs to a target interval, the target interval is one of P alternative intervals, any of the P alternative intervals is an interval of non-negative real numbers, the P alternative intervals respectively correspond to P alternative MCS sets, the P alternative intervals respectively correspond to P alternative resource numerical value sets, P being a positive integer greater than 1; the P alternative MCS sets are configured, the P alternative resource numerical value sets are configured; an alternative MCS set of the P alternative MCS sets that corresponds to the target interval is a first MCS set, and an alternative resource numerical value set of the P alternative resource numerical value sets that corresponds to the target interval is a first resource numerical value set; the second information is used for determining at least one of the MCS employed by the first radio signal or the time-frequency resources occupied by the first radio signal, the MCS employed by the first radio signal is one MCS in the first MCS set, and a number of the time-frequency resources occupied by the first radio signal is equal to a resource numerical value in the first resource numerical value set; the second information being used for determining at least one of the MCS employed by the first radio signal or the time-frequency resources occupied by the first radio signal means that the second information is used for indicating that the P alternative intervals, the second-type measurement value acquired by performing the target second-type measurement and the P alternative intervals are used for determining at least one of the MCS employed by the first radio signal or the time-frequency resources occupied by the first radio signal.
9. The method according to claim 8 , wherein all time-frequency resource subpools of the Q alternative time-frequency resource pools occupy equal numbers of multicarrier symbols, and a time interval length of time-domain resources comprised in each time-frequency resource subpool of the Q alternative time-frequency resource pools is related to its corresponding SCS, or, a number of multicarrier symbols occupied by any time-frequency resource subpool of the Q alternative time-frequency resource pools is related to its corresponding SCS.
10. The method according to claim 8 , wherein the target time-frequency resource pool comprises X time-frequency unit(s), any of the X time-frequency unit(s) occupies one sub-channel in frequency domain and one slot in time domain; the X first-type measurement(s) is (are respectively) performed in the X time-frequency unit(s); a characteristic measurement value is one of the X first-type measurement value(s), one of the X first-type measurement(s) used for acquiring the characteristic measurement value is performed in a characteristic time-frequency unit, the characteristic time-frequency unit is one of the X time-frequency unit(s).
11. A first-type communication node for wireless communications, comprising:
a first transceiver receiving first information, the first information being transmitted via a first higher layer signaling, or the first information comprising all or part of fields in a first Information Element (IE) of a first piece of Radio Resource Control (RRC) layer information; receiving second information, the second information being transmitted via a second higher layer signaling, or the second information comprising all or part of fields in a second IE of a second piece of RRC layer information;
a first measurer, performing X first-type measurement(s) in a target time-frequency resource pool, the X first-type measurement(s) respectively being used for acquiring X first-type measurement value(s), any of the X first-type measurement value(s) being a Sidelink Received Signal Strength Indicator (S-RSSI) value, X being a positive integer;
a second measurer performing a target second-type measurement, the target second-type measurement being a measurement on Channel Busy Ratio (CBR), the target second-type measurement being used for acquiring a second-type measurement value; and
the first transceiver transmitting a first signaling and a first radio signal; wherein the first signaling is transmitted through a Physical Sidelink Control Channel (PSCCH), and the first radio signal is transmitted through a Physical Sidelink Shared Channel (PSSCH); the first signaling is used for indicating at least one of a modulation coding scheme (MCS) employed by the first radio signal or time-frequency resources occupied by the first radio signal; the time-frequency resources occupied by the first radio signal comprises a number of sub-channels occupied by the first radio signal; the X first-type measurement value(s) is (are) used for the target second-type measurement, and the target time-frequency resource pool is one of Q alternative time-frequency resource pools related to a Subcarrier Spacing of subcarriers occupied by the first radio signal, Q being a positive integer greater than 1; each of X1 first-type measurement value(s) of the X first-type measurement value(s) is greater than a target threshold, the second-type measurement value acquired after performing the target second-type measurement is equal to a ratio of X1 to the X, X1 being a non-negative integer no greater than the X; the first information is used for determining the target threshold; there exist two of the Q alternative time-frequency resource pools that comprise different time-frequency resources; the second-type measurement value acquired after performing the target second-type measurement is used for determining at least one of the MCS employed by the first radio signal or time-frequency resources occupied by the first radio signal; the Q alternative time-frequency resource pools respectively correspond to Q alternative SCSs, one of the Q alternative SCSs corresponding to the target time-frequency resource pool is the same as the SCS of subcarriers occupied by the first radio signal; any of the Q alternative time-frequency resource pools consists of a group of time-frequency resource subpools that occur periodically in time domain, and periods of time-frequency resource subpools respectively comprised in at least two alternative time-frequency resource pools in the Q alternative time-frequency resource pools are different; and
the second-type measurement value acquired after performing the target second-type measurement belongs to a target interval, the target interval is one of P alternative intervals, any of the P alternative intervals is an interval of non-negative real numbers, the P alternative intervals respectively correspond to P alternative MCS sets, the P alternative intervals respectively correspond to P alternative resource numerical value sets, P being a positive integer greater than 1; the P alternative MCS sets are configured, the P alternative resource numerical value sets are configured; an alternative MCS set of the P alternative MCS sets that corresponds to the target interval is a first MCS set, and an alternative resource numerical value set of the P alternative resource numerical value sets that corresponds to the target interval is a first resource numerical value set; the second information is used for determining at least one of the MCS employed by the first radio signal or the time-frequency resources occupied by the first radio signal, the MCS employed by the first radio signal is one MCS in the first MCS set, and a number of the time-frequency resources occupied by the first radio signal is equal to a resource numerical value in the first resource numerical value set; the second information being used for determining at least one of the MCS employed by the first radio signal or the time-frequency resources occupied by the first radio signal means that the second information is used for indicating that the P alternative intervals, the second-type measurement value acquired by performing the target second-type measurement and the P alternative intervals are used for determining at least one of the MCS employed by the first radio signal or the time-frequency resources occupied by the first radio signal.
12. The first-type communication node according to claim 11 , wherein all time-frequency resource subpools of the Q alternative time-frequency resource pools occupy equal numbers of multicarrier symbols, and a time interval length of time-domain resources comprised in each time-frequency resource subpool of the Q alternative time-frequency resource pools is related to its corresponding SCS; or, a number of multicarrier symbols occupied by any time-frequency resource subpool of the Q alternative time-frequency resource pools is related to its corresponding SCS.
13. The first-type communication node according to claim 11 , wherein the target time-frequency resource pool comprises X time-frequency unit(s), any of the X time-frequency unit(s) occupies one sub-channel in frequency domain and one slot in time domain; the X first-type measurement(s) is (are respectively) performed in the X time-frequency unit(s); a characteristic measurement value is one of the X first-type measurement value(s), one of the X first-type measurement(s) used for acquiring the characteristic measurement value is performed in a characteristic time-frequency unit, the characteristic time-frequency unit is one of the X time-frequency unit(s).
14. The first-type communication node according to claim 11 , wherein at least two of the Q alternative time-frequency resource pools are overlapping in time domain; each of the Q alternative time-frequency resource pools belongs to a first time window in time domain, the time length of the first time window is 100 ms, the target second-type measurement is performed in a second time window, an end time of the first time window is no later than a start time of the second time window, and an end time of the second time window is no later than a start time for transmission of the first radio signal.
15. The first-type communication node according to claim 11 , wherein the second measurer performs Y third-type measurement(s) in a third time window, any of the Y third-type measurement(s) is a measurement on Channel occupancy Ratio (CR), the Y third-type measurement(s) is (are respectively) used for acquiring Y third-type measurement value(s), Y being a positive integer; wherein the second-type measurement value acquired after performing the target second-type measurement is used for determining a first upper bound, a sum of the Y third-type measurement value(s) is no greater than the first upper bound, a time-domain position of the third time window is related to time-frequency resources occupied by the first radio signal, and the Y third-type measurement value(s) is related to a number of time-frequency resources occupied by a radio signal transmitted by a transmitter of the first radio signal in the third time window.
16. The first-type communication node according to claim 11 , wherein frequency resources respectively comprised in at least two of the Q alternative time-frequency resource pools belong to a first subband, and the first subband comprises a Bandwidth Part (BWP).
17. The first-type communication node according to claim 11 , wherein any two of the Q alternative time-frequency resource pools respectively belong to different BWPs; or, at least two of the Q alternative time-frequency resource pools respectively belong to different BWPs.
18. A second-type communication node for wireless communications, comprising:
a second transmitter transmitting first information, the first information being transmitted via a first higher layer signaling, or the first information comprising all or part of fields in a first Information Element (IE) of a first piece of Radio Resource Control (RRC) layer information; transmitting second information, the second information being transmitted via a second higher layer signaling, or the second information comprising all or part of fields in a second IE of a second piece of RRC layer information;
wherein X first-type measurement(s) performed in a target time-frequency resource pool is (are) used for acquiring X first-type measurement value(s), any of the X first-type measurement value(s) is a Sidelink Received Signal Strength Indicator (S-RSSI) value, X being a positive integer; the target time-frequency resource pool is one of Q alternative time-frequency resource pools related to a Subcarrier Spacing of subcarriers occupied by a first radio signal, and there exist two of the Q alternative time-frequency resource pools that comprise different time-frequency resources, Q being a positive integer greater than 1; the X first-type measurement value(s) is (are) used for a target second-type measurement, the target second-type measurement is a measurement on Channel Busy Ratio (CBR), the target second-type measurement is used for acquiring a second-type measurement value, and the second-type measurement value acquired after performing the target second-type measurement is used for determining at least one of a modulation coding scheme (MCS) employed by the first radio signal or time-frequency resources occupied by the first radio signal; the time-frequency resources occupied by the first radio signal comprises a number of sub-channels occupied by the first radio signal; the first radio signal is transmitted through a Physical Sidelink Shared Channel (PSSCH); each of X1 first-type measurement value(s) of the X first-type measurement value(s) is greater than a target threshold, the second-type measurement value acquired after performing the target second-type measurement is equal to a ratio of X1 to the X, X1 being a non-negative integer no greater than the X, and the first information is used for determining the target threshold; the Q alternative time-frequency resource pools respectively correspond to Q alternative SCSs, one of the Q alternative SCSs corresponding to the target time-frequency resource pool is the same as the SCS of subcarriers occupied by the first radio signal; any of the Q alternative time-frequency resource pools consists of a group of time-frequency resource subpools that occur periodically in time domain, and periods of time-frequency resource subpools respectively comprised in at least two alternative time-frequency resource pools in the Q alternative time-frequency resource pools are different; and
the second-type measurement value acquired after performing the target second-type measurement belongs to a target interval, the target interval is one of P alternative intervals, any of the P alternative intervals is an interval of non-negative real numbers, the P alternative intervals respectively correspond to P alternative MCS sets, the P alternative intervals respectively correspond to P alternative resource numerical value sets, P being a positive integer greater than 1; the P alternative MCS sets are configured, the P alternative resource numerical value sets are configured; an alternative MCS set of the P alternative MCS sets that corresponds to the target interval is a first MCS set, and an alternative resource numerical value set of the P alternative resource numerical value sets that corresponds to the target interval is a first resource numerical value set; the second information is used for determining at least one of the MCS employed by the first radio signal or the time-frequency resources occupied by the first radio signal, the MCS employed by the first radio signal is one MCS in the first MCS set, and a number of the time-frequency resources occupied by the first radio signal is equal to a resource numerical value in the first resource numerical value set; the second information being used for determining at least one of the MCS employed by the first radio signal or the time-frequency resources occupied by the first radio signal means that the second information is used for indicating that the P alternative intervals, the second-type measurement value acquired by performing the target second-type measurement and the P alternative intervals are used for determining at least one of the MCS employed by the first radio signal or the time-frequency resources occupied by the first radio signal.
19. The second-type communication node according to claim 18 , wherein all time-frequency resource subpools of the Q alternative time-frequency resource pools occupy equal numbers of multicarrier symbols, and a time interval length of time-domain resources comprised in each time-frequency resource subpool of the Q alternative time-frequency resource pools is related to its corresponding SCS, or, a number of multicarrier symbols occupied by any time-frequency resource subpool of the Q alternative time-frequency resource pools is related to its corresponding SCS.
20. The second-type communication node according to claim 18 , wherein the target time-frequency resource pool comprises X time-frequency unit(s), any of the X time-frequency unit(s) occupies one sub-channel in frequency domain and one slot in time domain; the X first-type measurement(s) is (are respectively) performed in the X time-frequency unit(s); a characteristic measurement value is one of the X first-type measurement value(s), one of the X first-type measurement(s) used for acquiring the characteristic measurement value is performed in a characteristic time-frequency unit, the characteristic time-frequency unit is one of the X time-frequency unit(s).