Configuration of successful primary secondary cell change report
Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable medium of a configuration of successful primary secondary cell (PSCell) change report. The method comprises obtaining information associated with a SPCR; and determining a configuration of the SPCR based at least partly on the information.
1 . An apparatus comprising:
at least one processor; and
at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to:
obtain, by a network node operating as a master node for a terminal device, from a second network node operating as a secondary node for the terminal device, information associated with a Successful Primary Secondary Cell Change Report (SPCR), wherein the information comprises (i) a value of a T310 timer configured by the second network node, (ii) a value of a T312 timer configured by the second network node, and (iii) a threshold percentage corresponding to the T310 timer and the T312 timer; and
determine a configuration of the SPCR based at least partly on the information, wherein determining the configuration comprises:
determining a threshold for generation of the SPCR as a percentage of a timer value configured by the second network node, wherein the configuration is for a Primary Secondary Cell change involving the second network node or a subsequent secondary network node; and
setting a threshold for generation of the SPCR as a percentage of a preconfigured timer value at the terminal device, such that the SPCR is generated only when the timer exceeds the percentage threshold prior to expiry.
2 . The apparatus of claim 1 , wherein the information associated with the SPCR comprises a measurement configuration.
3 . The apparatus of claim 2 , wherein the apparatus is caused to:
transmit, to the network node, a request of the information associated with the SPCR.
4 . The apparatus of claim 3 , wherein the request comprises an identifier of a target primary secondary cell of a primary secondary cell change.
5 . The apparatus of claim 4 , wherein the information associated with the SPCR comprises a threshold percentage for the T310 timer and the T312 timer.
6 . The apparatus of claim 1 , wherein obtaining the information associated with the SPCR comprises transmitting, to the second network node, a request that includes an identifier of a target Primary Secondary Cell for a Primary Secondary Cell change, and
wherein the apparatus is further caused to:
receive, in response to the request, information corresponding specifically to the target Primary Secondary Cell.
7 . The apparatus of claim 6 ,
wherein the apparatus is further caused to:
transmit, to the second network node after configuring the SPCR, an indication of an actual SPCR configuration applied to the terminal device, including a threshold percentage used for generation of the SPCR.
8 . A method comprising:
obtaining, by a first network node operating as a master node for a terminal device and from a second network node operating as a secondary node for the terminal device, information associated with a Successful Primary Secondary Cell Change Report (SPCR), wherein the information comprises (i) a value of a T310 timer configured by the second network node, (ii) a value of a T312 timer configured by the second network node, and (iii) a threshold percentage corresponding to the T310 timer and the T312 timer; and
determining a configuration of the SPCR based at least partly on the information, wherein determining the configuration comprises:
determining a threshold for generation of the SPCR as a percentage of a timer value configured by the second network node, wherein the configuration is for a Primary Secondary Cell change involving the second network node or a subsequent secondary network node; and
setting a threshold for generation of the SPCR as a percentage of a preconfigured timer value at the terminal device, such that the SPCR is generated only when the timer exceeds the percentage threshold prior to expiry.
9 . The method of claim 8 , wherein obtaining the information associated with the SPCR comprises transmitting, to the second network node, a request that includes an identifier of a target Primary Secondary Cell for a Primary Secondary Cell change, and receiving, in response to the request, information corresponding specifically to the target Primary Secondary Cell.
10 . The method of claim 9 , further comprising transmitting, to the second network node after configuring the SPCR, an indication of an actual SPCR configuration applied to a terminal device, including a threshold percentage used for generation of the SPCR.
11 . The method of claim 10 , wherein the information associated with the SPCR further comprises a radio measurement configuration provided by the second network node, and wherein determining the configuration of the SPCR is based on the radio measurement configuration rather than an absolute timer value.
12 . The method of claim 11 , wherein the information associated with the SPCR obtained from the second network node configures the SPCR for a subsequent Primary Secondary Cell change initiated after the terminal device has connected to the second network node.
13 . The method of claim 12 , wherein the configuration of the SPCR is included in a radio resource control reconfiguration message transmitted to the terminal device during a Primary Secondary Cell change procedure.