Resource selection method and apparatus, and user equipment
The embodiments of this disclosure provide a resource selection method and apparatus, and user equipment. The method includes: determining, in a case that a predetermined condition is met, a candidate resource set according to resource information of first resources in a resource selection window; and selecting a target resource from the candidate resource set, where the predetermined condition includes at least one of the following: the UE detects a reserved resource of UE of a first type, or the UE is UE of a first type; and the resource information includes at least one of the following: priority information, a measurement result, a measurement threshold, or a UE type of UE to which the first resource belongs.
1 . A resource selection method, comprising:
determining, by user equipment (UE) in a case that a predetermined condition is met, a candidate resource set according to resource information of first resources in a resource selection window; and
selecting, by the UE, a target resource from the candidate resource set, wherein
the predetermined condition comprises at least one of the following: the UE detects a reserved resource of UE of a first type, or the UE is UE of a first type; and the resource information comprises at least one of the following: priority information, a measurement result, a measurement threshold, or a UE type of UE to which the first resources belong;
in a case that the UE is the UE of the first type, the method further comprises:
reporting, by the UE, the candidate resource set in a case that a reporting condition is met,
wherein the reporting condition is that a ratio of a resource quantity of the candidate resource set to a resource quantity of the resource selection window is greater than or equal to a threshold.
2 . The method according to claim 1 , wherein in a case that the UE detects the reserved resource of the UE of the first type, the first resources comprise the reserved resource of the UE of the first type.
3 . The method according to claim 1 , wherein the resource information further comprises enable information, and the enable information is used for indicating whether a partial sensing mechanism of the UE is enabled.
4 . The method according to claim 1 , wherein the priority information is used for indicating that: the UE of the first type has a highest priority, and/or the reserved resource of the UE of the first type has a highest priority.
5 . The method according to claim 1 , wherein a priority of the UE of the first type is set according to a first preset rule, wherein
the first preset rule comprises at least one of the following:
setting the priority of the UE of the first type to be greater than or equal to a priority of a packet transmitted by the UE,
setting the priority of the UE of the first type according to a preset priority offset value, or
the priority of the UE of the first type being within a preset priority range;
wherein the preset priority offset value is related to a channel busy rate (CBR) of the UE; or
the preset priority offset value is predefined, or configured by higher layer signaling, or indicated by downlink control information (DCI), or indicated by sidelink control information (SCI); or
a lower threshold of the preset priority range is predefined, or configured by higher layer signaling, or indicated by DCI, or indicated by SCI.
6 . The method according to claim 1 , wherein the first resources comprise the reserved resource of the UE of the first type and a reserved resource of UE of a second type; and
the determining, by UE, a candidate resource set according to resource information of first resources in a resource selection window comprises:
excluding, by the UE, the reserved resource of the UE of the first type in a case that the priority of the reserved resource of the UE of the first type is the same as a priority of the reserved resource of the UE of the second type.
7 . The method according to claim 1 , wherein the first resources comprise the reserved resource of the UE of the first type and resources not occupied by the UE of the first type; and
the determining, by UE, a candidate resource set according to resource information of first resources in a resource selection window comprises:
selecting, by the UE according to the resource information, all or some of the resources not occupied by the UE of the first type as candidate resources.
8 . The method according to claim 7 , wherein the resources not occupied by the UE of the first type comprise a reserved resource of UE of a second type; the resource information further comprises information used for indicating that a first probability is lower than a second probability; and the first probability is a probability that the UE selects the reserved resource of the UE of the first type, and the second probability is a probability that the UE selects the reserved resource of the UE of the second type.
9 . The method according to claim 8 , wherein a difference between the first probability and the second probability is greater than or equal to a first threshold, wherein the first threshold is specified in a protocol, or configured by a control node, or pre-configured.
10 . The method according to claim 1 , wherein the measurement result comprises a reference measurement value; and before the determining, by UE, a candidate resource set according to resource information of first resources in a resource selection window, the method further comprises:
configuring, by the UE, a detection parameter of the UE of the first type, wherein the detection parameter comprises at least one of the following: a second preset rule of a target measurement threshold, a third preset rule of a reference measurement value, a measurement threshold offset value, or a measurement offset value.
11 . The method according to claim 10 , wherein in a case that any first resource is the reserved resource of the UE of the first type, the second preset rule comprises: obtaining the target measurement threshold based on a first original measurement threshold and a first measurement threshold offset value; or
in a case that the UE is the UE of the first type, the second preset rule comprises: setting the target measurement threshold based on a second original measurement threshold and a second measurement threshold offset value.
12 . The method according to claim 11 , wherein the first measurement threshold offset value is predefined, or specified in a protocol, or pre-configured, or configured by a first carrier, or indicated by first indication information; and/or the first measurement threshold offset value is related to a channel busy rate (CBR) of the UE, wherein
the first carrier comprises radio resource control (RRC) or a Media Access Control (MAC) control element (CE); and the first indication information comprises downlink control information (DCI) or sidelink control information (SCI).
13 . The method according to claim 11 , wherein the second measurement threshold offset value is predefined, or specified in a protocol, or pre-configured, or configured by a second carrier, or indicated by second indication information; and/or the second measurement threshold offset value is related to a channel busy rate (CBR) of the UE, wherein
the second carrier comprises radio resource control (RRC) or a Media Access Control (MAC) control element (CE); and the second indication information comprises downlink control information (DCI) or sidelink control information (SCI).
14 . The method according to claim 10 , wherein in a case that any first resource is the reserved resource of the UE of the first type, the third preset rule comprises: obtaining a reference measurement value corresponding to the reserved resource of the UE of the first type based on a measurement value corresponding to the reserved resource of the UE of the first type and a first measurement offset value; or
in a case that the UE is the UE of the first type, the third preset rule comprises: obtaining, based on a measurement value corresponding to any first resource and a second measurement offset value, a reference measurement value corresponding to the any first resource.
15 . The method according to claim 14 , wherein the first measurement offset value is predefined, or specified in a protocol, or pre-configured, or configured by a third carrier, or indicated by third indication information; and/or the first measurement offset value is related to a channel busy rate (CBR) of the UE, wherein
the third carrier comprises radio resource control (RRC) or a Media Access Control (MAC) control element (CE); and the third indication information comprises downlink control information (DCI) or sidelink control information (SCI).
16 . The method according to claim 14 , wherein the second measurement offset value is predefined, or specified in a protocol, or pre-configured, or configured by a fourth carrier, or indicated by fourth indication information; and/or the second measurement offset value is related to a channel busy rate (CBR) of the UE, wherein
the fourth carrier comprises radio resource control (RRC) or a Media Access Control (MAC) control element (CE); and the fourth indication information comprises downlink control information (DCI) or sidelink control information (SCI).
17 . The method according to claim 1 , further comprising:
receiving, by the UE, target signaling, wherein
the target signaling comprises downlink control information (DCI), or sidelink control information (SCI), or high-level configuration signaling; and the target signaling is used for indicating that the UE is the UE of the first type or the first resources comprise the reserved resource of the UE of the first type,
wherein the determining, by UE, a candidate resource set according to resource information of first resources in a resource selection window comprises:
determining, by the UE, the candidate resource set according to target information and the resource information of the first resources in the resource selection window, wherein
the target information is used for indicating that the UE performs resource selection and/or enabling, or whether the UE supports a preemption mechanism; and the target information is carried in at least one of the following: radio resource control (RRC), downlink control information (DCI), sidelink control information (SCI), or configuration information of a resource pool.
18 . UE, comprising:
a processor; and
a memory storing a computer program that is executable on the processor, wherein the computer program, when executed by the processor, causes the UE to:
determine, in a case that a predetermined condition is met, a candidate resource set according to resource information of first resources in a resource selection window; and
select a target resource from the candidate resource set, wherein
the predetermined condition comprises at least one of the following: the UE detects a reserved resource of UE of a first type, or the UE is UE of a first type; and the resource information comprises at least one of the following: priority information, a measurement result, a measurement threshold, or a UE type of UE to which the first resources belong;
in a case that the UE is the UE of the first type, the computer program, when executed by the processor, causes the UE to further perform the following step:
reporting, by the UE, the candidate resource set in a case that a reporting condition is met, wherein the reporting condition is that a ratio of a resource quantity of the candidate resource set to a resource quantity of the resource selection window is greater than or equal to a threshold.
19 . A non-transitory computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, performs the following steps:
determining, by user equipment (UE) in a case that a predetermined condition is met, a candidate resource set according to resource information of first resources in a resource selection window; and
selecting, by the UE, a target resource from the candidate resource set, wherein
the predetermined condition comprises at least one of the following: the UE detects a reserved resource of UE of a first type, or the UE is UE of a first type; and the resource information comprises at least one of the following: priority information, a measurement result, a measurement threshold, or a UE type of UE to which the first resources belong;
in a case that the UE is the UE of the first type, the computer program, when executed by the processor, causes the UE to further perform the following step:
reporting, by the UE, the candidate resource set in a case that a reporting condition is met, wherein the reporting condition is that a ratio of a resource quantity of the candidate resource set to a resource quantity of the resource selection window is greater than or equal to a threshold.