METHOD AND DEVICE FOR WIRELESS COMMUNICATION
Receiving a first signaling, and the first signaling indicating releasing an RRC connection; as a response to receiving the first signaling, entering RRC_IDLE state or RRC_INACTIVE state, accompanying the behavior of entering RRC_IDLE state or RRC_INACTIVE state, executing cell selection; the behavior of executing cell selection comprising evaluating a first cell within a target time length; the target time length depending on whether a first SSB group is on demand; the first SSB group belonging to the first cell; herein, the meaning of the phrase that the target time length depends on whether an SSB of the first cell is on demand comprises: when an SSB of the first cell is on demand, the target time length is a first value; when an SSB of the first cell is not on demand. The present application enables better cell selection in complex environments through the first signaling.
1 . A first node for wireless communications, comprising:
a first receiver, receiving a first signaling, the first signaling indicating releasing an RRC connection; as a response to receiving the first signaling, entering RRC_IDLE state or RRC_INACTIVE state; accompanying the entering RRC_IDLE state or RRC_INACTIVE state, executing cell selection; the executing cell selection comprises evaluating a first cell within a target time length; the target time length depending on whether a first Synchronization Signal and PBCH block (SSB) group is on demand; the first SSB group belonging to the first cell;
wherein the meaning of the target time length depending on whether an SSB of the first cell is on demand comprises: when an SSB of the first cell is on demand, the target time length is a first value; when an SSB of the first cell is not on demand, the target time length is a second value.
2 . The first node according to claim 1 , wherein
the meaning of evaluating a first cell comprises: measuring at least one SSB in the first SSB group to obtain a first measurement result; the first measurement result measures quality of the first cell.
3 . The first node according to claim 1 , wherein
the meaning of the evaluating a first cell comprises: determining Srxlev of the first cell, and whether the Srxlev of the first cell comprises a first offset depending on whether the first SSB group is on demand; when the first SSB group is on demand, the Srxlev of the first cell comprises a first offset; when the first SSB group is not on demand, the Srxlev of the first cell does not comprise a first offset.
4 . The first node according to claim 2 , wherein
the meaning of evaluating a first cell comprises: determining Srxlev of the first cell, and whether the Srxlev of the first cell comprises a first offset depending on whether the first SSB group is on demand; when the first SSB group is on demand, the Srxlev of the first cell comprises a first offset; when the first SSB group is not on demand, the Srxlev of the first cell does not comprise a first offset.
5 . The first node according to claim 1 , wherein
the executing cell selection comprises: when no suitable cell is found within a time length of the first value, performing a cell evaluation within a time length of the second value; when a suitable cell is found within a time length of the first value, selecting the suitable cell.
6 . The first node according to claim 4 , wherein
the executing cell selection comprises: when no suitable cell is found within a time length of the first value, performing a cell evaluation within a time length of the second value; when a suitable cell is found within a time length of the first value, selecting the suitable cell.
7 . The first node according to claim 1 , wherein
the second value depends on a period of resources requesting SSBs comprised in the first SSB group.
8 . The first node according to claim 1 , comprising:
a first receiver, monitoring a paging on at least one time-frequency resource; the at least one time-frequency resource depending on whether the first SSB group is on demand.
9 . The first node according to claim 1 , comprising:
a first transmitter, as a response to a first condition being satisfied, transmitting a first signal, the first signal requesting an SSB of the first cell; and
the first receiver, receiving an SSB of the first cell;
wherein the first condition comprises failure to receive an SSB of the first cell within a time length of a first value.
10 . The first node according to claim 1 , comprising:
a first transmitter, as a response to a second condition being satisfied, transmitting a first signal, the first signal requesting an SSB of the first cell; and
the first receiver, receiving an SSB of the first cell;
wherein the second condition comprises failure to found a suitable cell within a time length of a third value.
11 . The first node according to claim 3 , comprising:
a first transmitter, as a response to a second condition being satisfied, transmitting a first signal, the first signal requesting an SSB of the first cell; and
the first receiver, receiving an SSB of the first cell;
wherein the second condition comprises failure to found a suitable cell within a time length of a third value.
12 . The first node according to claim 5 , comprising:
a first transmitter, as a response to a second condition being satisfied, transmitting a first signal, the first signal requesting an SSB of the first cell; and
the first receiver, receiving an SSB of the first cell;
wherein the second condition comprises failure to found a suitable cell within a time length of a third value.
13 . The first node according to claim 1 , comprising:
the first receiver, as a response to the first cell not meeting S criterion within a first time length, initiating measurements on all neighboring cells; the first time length depending on whether the first SSB group is on demand;
wherein the first node selects the first cell.
14 . The first node according to claim 2 , comprising:
the first receiver, as a response to the first cell not meeting S criterion within a first time length, initiating measurements on all neighboring cells; the first time length depending on whether the first SSB group is on demand;
wherein the first node selects the first cell.
15 . The first node according to claim 4 , comprising:
the first receiver, as a response to the first cell not meeting S criterion within a first time length, initiating measurements on all neighboring cells; the first time length depending on whether the first SSB group is on demand;
wherein the first node selects the first cell.
16 . The first node according to claim 5 , comprising:
the first receiver, as a response to the first cell not meeting S criterion within a first time length, initiating measurements on all neighboring cells; the first time length depending on whether the first SSB group is on demand;
wherein the first node selects the first cell.
17 . A method in a first node for wireless communications, comprising:
receiving a first signaling, the first signaling indicating releasing an RRC connection; as a response to receiving the first signaling, entering RRC_IDLE state or RRC_INACTIVE state; accompanying the entering RRC_IDLE state or RRC_INACTIVE state, executing cell selection; the executing cell selection comprises evaluating a first cell within a target time length; the target time length depending on whether a first SSB group is on demand; the first SSB group belonging to the first cell;
wherein the meaning of the target time length depending on whether an SSB of the first cell is on demand comprises: when an SSB of the first cell is on demand, the target time length is a first value; when an SSB of the first cell is not on demand, the target time length is a second value.
18 . The method in a first node according to claim 17 , wherein
the meaning of evaluating a first cell comprises: determining Srxlev of the first cell, and whether the Srxlev of the first cell comprises a first offset depending on whether the first SSB group is on demand; when the first SSB group is on demand, the Srxlev of the first cell comprises a first offset; when the first SSB group is not on demand, the Srxlev of the first cell does not comprise a first offset.
19 . The method in a first node according to claim 17 , wherein
the executing cell selection comprises: when no suitable cell is found within a time length of the first value, performing a cell evaluation within a time length of the second value; when a suitable cell is found within a time length of the first value, selecting the suitable cell.
20 . The method in a first node according to claim 17 , comprising:
as a response to the first cell not meeting S criterion within a first time length, initiating measurements on all neighboring cells; the first time length depending on whether the first SSB group is on demand;
wherein the first node selects the first cell.