Sidelink relay cell re-selection and measurements
A relay wireless transmit/receive unit (WTRU) may be configured to receive information indicating characteristic(s) associated with a remote WTRU. The relay WTRU may receive configuration information associated with the relay WTRU. The relay WTRU may determine whether a remote WTRU is supported by the neighbor cell. The determination may be based on whether the characteristic(s) associated with the remote WTRU are supported by the neighbor cell. The relay WTRU may determine a behavior of relay WTRU based at least the configuration information and the percentage of remote WTRU(S) that is supported by the neighbor cell. The determined behavior may be associated with the neighbor cell. In examples, the determined behavior of the relay WTRU may be based on the percentage of remote WTRU(s) that is supported by the neighbor cell being above or below a threshold.
1 . A method performed by a relay wireless transmit/receive unit (WTRU), comprising:
receiving information associated with a plurality of remote WTRUs, wherein the information includes a first characteristic associated with a first remote WTRU and a second characteristic associated with a second remote WTRU;
receiving configuration information associated with the relay WTRU;
determining that the first remote WTRU and the second remote WTRU are supported by a cell, wherein the determination is based on the first characteristic and the second characteristic being supported by the cell;
determining a behavior of the relay WTRU based at least on the configuration information and the first remote WTRU and the second remote WTRU being supported by the cell, wherein the determined behavior of the relay WTRU is associated with the cell; and
performing the determined behavior associated with the cell.
2 . The method of claim 1 , wherein the determination of the behavior of the relay WTRU is further based on a percentage of the plurality of remote WTRUs that is supported by the cell.
3 . The method of claim 2 , wherein the determined behavior is further based on the percentage of the plurality of remote WTRUs that is supported by the cell being above or below a threshold.
4 . The method of claim 2 , wherein:
the cell is a first cell,
the relay WTRU is connected to the first cell,
if the percentage of the plurality of remote WTRUs is below a threshold, the determined behavior is a cell reselection to a second cell, and
if the percentage of the plurality of remote WTRUs is above the threshold, the determined behavior is a measurement of the first cell.
5 . The method of claim 2 , wherein:
the configuration information indicates a first behavior if the percentage of the plurality of remote WTRUs is above a threshold and a second behavior if the percentage of the plurality of remote WTRUs is below the threshold, and
the determined behavior is the first behavior or the second behavior.
6 . The method of claim 1 , wherein the determined behavior is associated with cell reselection or handover.
7 . The method of claim 6 , wherein the determined behavior associated with the cell reselection or the handover comprises at least one of: disabling cell re-selection to the cell, disabling measurements on the cell, disabling sending a measurement report that is triggered due to the cell, or de-prioritizing measurements for the cell.
8 . The method of claim 1 , wherein the first characteristic and the second characteristic comprise at least one of: a supported public land mobile network (PLMN), a configured radio access network (RAN) area, or a remote WTRU capability.
9 . A relay wireless transmit/receive unit (WTRU), comprising:
a processor configured to:
receive information associated with a plurality of remote WTRUs, wherein the information includes a first characteristic associated with a first remote WTRU and a second characteristic associated with a second remote WTRU;
receive configuration information associated with the relay WTRU;
determine that the first remote WTRU and the second remote WTRU are supported by a cell, wherein the determination is based on the first characteristic and the second characteristic being supported by the cell;
determine a behavior of the relay WTRU based at least on the configuration information and the first remote WTRU and the second remote WTRU being supported by the cell, wherein the determined behavior of the relay WTRU is associated with the cell; and
perform the determined behavior associated with the cell.
10 . The relay WTRU of claim 9 , wherein the determination of the behavior of the relay WTRU is further based on a percentage of the plurality of remote WTRUs that is supported by the cell.
11 . The relay WTRU of claim 10 , wherein the determined behavior is further based on the percentage of the plurality of remote WTRUs that is supported by the cell being above or below a threshold.
12 . The relay WTRU of claim 10 , wherein:
the cell is a first cell,
the relay WTRU is connected to the first cell,
if the percentage of the plurality of remote WTRUs is below a threshold, the determined behavior is a cell reselection to a second cell, and
if the percentage of the plurality of remote WTRUs is above the threshold, the determined behavior is a measurement of the first cell.
13 . The relay WTRU of claim 10 , wherein:
the configuration information indicates a first behavior if the percentage of the plurality of remote WTRUs is above a threshold and a second behavior if the percentage of the plurality of remote WTRUs is below the threshold, and
the determined behavior is the first behavior or the second behavior.
14 . The relay WTRU of claim 9 , wherein the determined behavior is associated with cell reselection or handover.
15 . The relay WTRU of claim 14 , wherein the determined behavior associated with the cell reselection or the handover comprises at least one of: disabling cell re-selection to the cell, disabling measurements on the cell, disabling sending a measurement report that is triggered due to the cell, or de-prioritizing measurements for the cell.
16 . The relay WTRU of claim 9 , wherein the first characteristic and the second characteristic comprise at least one of: a supported public land mobile network (PLMN), a configured radio access network (RAN) area, or a remote WTRU capability.