TRIGGERING METHOD AND TRIGGERING APPARATUS FOR INTER-CELL MOBILITY PROCESS
A triggering apparatus for an inter-cell mobility procedure includes: a receiver configured to receive measurement-related information, the measurement-related information including one of the following: a layer 1 measurement result by performing layer 1 measurement on a frequency of an inter-frequency candidate target cell or on an inter-frequency candidate target cell by a terminal equipment, first indication information from a second network device based on a layer 3 measurement result by performing layer 3 measurement on a frequency of an inter-frequency candidate target cell or on an inter-frequency candidate target cell by the terminal equipment, or a layer 1 measurement result associated with a candidate target cell; and triggering processor circuitry configured to, based on the measurement-related information, trigger a layer 1 or layer 2 based inter-cell mobility procedure from a serving cell to a target cell.
1 . A triggering apparatus for an inter-cell mobility procedure, the apparatus comprising:
a receiver configured to receive measurement-related information, the measurement-related information including one of the following:
a layer 1 measurement result by performing layer 1 measurement on a frequency of an inter-frequency candidate target cell or on an inter-frequency candidate target cell by a terminal equipment,
first indication information from a second network device based on a layer 3 measurement result by performing layer 3 measurement on a frequency of an inter-frequency candidate target cell or on an inter-frequency candidate target cell by the terminal equipment, or
a layer 1 measurement result associated with a candidate target cell; and
triggering processor circuitry configured to, based on the measurement-related information, trigger a layer 1 or layer 2 based inter-cell mobility procedure from a serving cell to a target cell.
2 . The apparatus according to claim 1 , the apparatus further comprising:
a first transmitter configured to transmit second indication information to the terminal equipment, the second indication information indicating the terminal equipment to perform layer 1 measurement on the frequency of the inter-frequency candidate target cell or on the inter-frequency candidate target cell.
3 . The apparatus according to claim 1 , the apparatus further comprising:
a second transmitter configured to transmit third indication information to the terminal equipment, the third indication information indicating the terminal equipment to perform layer 1 measurement by using an autonomous interval.
4 . The apparatus according to claim 3 , wherein
the autonomous interval refers to a time when the terminal equipment is not scheduled by a network.
5 . The apparatus according to claim 1 , the apparatus further comprising:
first configuring processor circuitry configured to configure a measurement interval for the terminal equipment, the measurement interval being used by the terminal equipment for performing the layer 1 measurement.
6 . The apparatus according to claim 1 , wherein
the receiver further receives the first indication information transmitted by the second network device, the first indication information indicating whether to trigger the layer 1 or layer 2 based inter-cell mobility procedure from the serving cell to the target cell, and
the second network device is a gNB (gNodeB)-CU (Central Unit).
7 . The apparatus according to claim 1 , wherein the first network device is a gNB (gNodeB)-DU (Distributed Unit).
8 . The apparatus according to claim 1 , the apparatus further comprising:
second configuring processor circuitry configured to configure a candidate target cell or a candidate target cell group for the terminal equipment based on the layer 3 measurement result from the terminal equipment, the candidate target cell or a candidate target cell in the candidate target cell group and the service cell being of intra-frequency or inter-frequency.
9 . The apparatus according to claim 1 , wherein the to trigger the layer 1 or layer 2 based inter-cell mobility procedure from the serving cell to the target cell comprises:
transmitting a layer 1 indication to the terminal equipment via the serving cell; and/or
transmitting a layer 2 indication to the terminal equipment via the serving cell.
10 . The apparatus according to claim 1 , wherein
the inter-frequency refers to a frequency that is different from a frequency of the serving cell;
the frequency being different including that center frequency points are different or subcarrier spacings are different.
11 . The apparatus according to claim 1 , wherein
the layer 1 measurement result is a layer 1 measurement result of a beam and/or a reference signal of a candidate target cell or a cell associated with the candidate target cell.
12 . A triggering apparatus for an inter-cell mobility procedure, the apparatus comprising:
a transmitter configured to report a layer 3 measurement result of an inter-frequency candidate target cell to a second network device, the layer 3 measurement result being used for the second network device to indicate a first network device to trigger a layer 1 or layer 2 based inter-cell mobility procedure from a serving cell to a target cell, the second network device being a gNB (gNodeB)-CU (Central Unit).
13 . The apparatus according to claim 12 , wherein
when the layer 1 measurement result associated with the inter-frequency candidate target cell is reported or satisfies a second condition or a layer 3 measurement result of the beam and/or reference signal of the inter-frequency candidate target cell satisfies a third condition, the transmitter reports the layer 3 measurement result to the second network device.
14 . The apparatus according to claim 12 , wherein
the first network device is a gNB (gNodeB)-DU (Distributed Unit).
15 . The apparatus according to claim 13 , wherein the second condition includes at least one of the following that:
the layer 1 measurement result of the cell associated with the inter-frequency candidate target cell is better than that of the serving cell by an offset;
the layer 1 measurement result of a beam of the cell associated with the inter-frequency candidate target cell is better than that of a beam of the serving cell by an offset;
the layer 1 measurement result of the serving cell is poor; and
the layer 1 measurement result of the beam of the serving cell is poor.
16 . The apparatus according to claim 13 , wherein the third condition includes at least one of the following that:
the layer 3 measurement result of the beam and/or reference signal of the inter-frequency candidate target cell is better than that of a special cell and/or a secondary cell by an offset; and/or
the layer 3 measurement result of the beam and/or reference signal of the inter-frequency candidate target cell is better than a third threshold, and a layer 3 measurement result of a beam and/or reference signal of the special cell is worse than a fourth threshold.
17 . The apparatus according to claim 13 , wherein
when the terminal equipment receives a handover command, or when the second condition is unsatisfied, or when the third condition is unsatisfied, or when the number of times of reporting the layer 3 measurement result by the terminal equipment reaches a preset maximum, the transmitter stops reporting the layer 3 measurement result.
18 . A triggering apparatus for an inter-cell mobility procedure, the apparatus comprising:
a transmitter configured to report a layer 1 measurement result to a network device, the layer 1 measurement result being associated with an inter-frequency candidate target cell and used for the network device to trigger a layer 1 or layer 2 based inter-cell mobility procedure from a serving cell to a target cell.
19 . The apparatus according to claim 18 , wherein
the layer 1 measurement result is a layer 1 measurement result of a cell associated with the inter-frequency candidate target cell.
20 . The apparatus according to claim 19 , wherein
if the first network device configures a candidate target cell for the terminal equipment and the candidate target cell is an inter-frequency cell, the cell associated with the inter-frequency candidate target cell is an intra-frequency cell associated with the inter-frequency cell; and
if the first network device configures a candidate target cell group for the terminal equipment and the candidate target cell group includes an inter-frequency cell, the cell associated with the inter-frequency candidate target cell is an intra-frequency cell in the candidate target cell group or an intra-frequency cell in a cell group other than the candidate target cell group.