Method and device for selecting nodes using reference signals in wireless communication
The present application provides a method and a device in a node for wireless communications. A first node transmits a first signal; receives a first signaling in a first resource block; and monitors a first-type signaling in a first resource block subset after a first time using a spatial parameter of a target reference signal. The first signal indicates a first reference signal out of M reference signals; a transmitter of at least one reference signal among the M reference signals is a first cell, the first cell not being added by the first node; time-domain resource occupied by the first signaling is used to determine the first time. The method above makes quick cross-cell beam handover possible and enhances the performance of cell-boundary users as well as avoids the ping-pong effect with service quality fully-guaranteed.
1 . A first node for wireless communications, comprising:
a first transmitter, transmitting a first signal, the first signal indicating a first reference signal out of a plurality of reference signals;
a first receiver, operatively coupled to the first transmitter, receiving a first signaling in a first resource block,
a processor, operatively coupled to the first transmitter and the first receiver, determining a first time based on a time-domain resource occupied by the first signaling;
the first receiver and the processor monitoring a first-type signaling in a first resource block subset after the first time using a spatial parameter of a target reference signal;
the first receiver receiving at least one second reference signal among the plurality of reference signals from a first cell, wherein the first cell is a serving cell;
the first receiver receiving the first reference signal from a target cell
the first receiver and the processor adding the target cell on a condition that the target reference signal is the first reference signal; and
the first transmitter transmitting an uplink transmission to the target cell.
2 . The first node according to claim 1 , wherein before the first time the first receiver and the processor monitor the first-type signaling in a second resource block subset using a spatial parameter of the at least one second reference signal; and wherein the first resource block subset and the second resource block subset are associated with a same control resource set.
3 . The first node according to claim 1 , wherein when the target cell is not added by the first node, the first receiver and the processor monitor a second-type signaling in a third resource block subset after a second time using a spatial parameter of the first reference signal; wherein the first reference signal is used to determine the third resource block subset; and wherein the second-type signaling is received from the target cell.
4 . The first node according to claim 3 , wherein the first receiver receives a first information block; and wherein the first information block is received from the target cell, the first information block being used to determine configuration information of the third resource block subset.
5 . The first node according to claim 1 , wherein the first receiver receives a second information block; wherein the first receiver and the processor monitor a third-type signaling in a fourth resource block set using a spatial parameter of the first reference signal; wherein the second information block includes configuration information of the fourth resource block set, and the second information block is received from a second cell, the second cell being added by the first node; and wherein the third-type signaling is received from the target cell.
6 . The first node according to claim 1 , wherein the first receiver receives a first reference signal set, and the first reference signal set includes at least one reference signal; and wherein a measurement of the first reference signal set is used to trigger transmission of the first signal.
7 . The first node according to claim 1 , wherein the first receiver receives a plurality of configuration information blocks; wherein the plurality of configuration information blocks respectively indicate the plurality of reference signals; at least one reference signal among the plurality of reference signals is received from a second cell, the second cell being added by the first node; wherein among the plurality of configuration information blocks each configuration information block corresponding to a reference signal transmitted by the first cell includes a first index, the first index being used to indicate the first cell; and wherein among the plurality of configuration information blocks each configuration information block corresponding to a reference signal transmitted by the second cell includes a second index, the second index being used to indicate the second cell.
8 . The first node according to claim 2 , wherein on a condition the target cell is added by the first node, the target reference signal is the first reference signal; and wherein on a condition the target cell is not added by the first node, the target reference signal is the at least one second reference signal.
9 . A second node for wireless communications, comprising:
a second receiver, receiving a first signal from a first node, the first signal indicating a first reference signal out of a plurality of reference signals;
a second transmitter, transmitting a first signaling in a first resource block to the first node, and transmitting a first-type signaling in a first resource block subset to the first node after a first time using a spatial parameter of a target reference signal;
wherein at least one second reference signal among the plurality of reference signals is for a first cell, wherein the first cell is a serving cell;
wherein the second node is a target cell; and
receiving an uplink transmission from the first node.
10 . The second node according to claim 9 , wherein before the first time the second transmitter transmits the first-type signaling in a second resource block subset using a spatial parameter of the at least one second reference signal; and wherein the first resource block subset and the second resource block subset are associated with a same control resource set.
11 . The second node according to claim 9 , wherein the second transmitter transmits a second information block; wherein the second information block includes configuration information of a fourth resource block set; and wherein the second transmitter transmits a third-type signaling in the fourth resource block set using a spatial parameter of the first reference signal.
12 . The second node according to claim 9 , wherein the second transmitter transmits a first reference signal set, the first reference signal set includes at least one reference signal; and wherein a measurement of the first reference signal set is for triggering transmission of the first signal.
13 . The second node according to claim 9 , wherein the second transmitter transmits a plurality of configuration information blocks;
wherein the plurality of configuration information blocks respectively indicate the plurality of reference signals; wherein the second transmitter transmits at least one reference signal among the plurality of reference signals and the second node is a second cell; wherein among the plurality of configuration information blocks each configuration information block corresponding to a reference signal transmitted by the first cell includes a first index, the first index being used to indicate the first cell; and wherein among the plurality of configuration information blocks each configuration information block corresponding to a reference signal transmitted by the second cell includes a second index, the second index being used to indicate the second cell.
14 . A method in a first node for wireless communications, comprising:
transmitting a first signal, the first signal indicating a first reference signal out of a plurality of reference signals;
receiving a first signaling in a first resource block;
determining a first time based on a time-domain resource occupied by the first signaling;
monitoring a first-type signaling in a first resource block subset after the first time using a spatial parameter of a target reference signal;
receiving wherein a transmitter of at least one second reference signal among the plurality of reference signals from a first cell, wherein the first cell is a serving cell
receiving the first reference signal from a target cell
adding the target cell on a condition that the target reference signal is the first reference signal; and
transmitting an uplink transmission to the target cell.
15 . The method according to claim 14 , further comprising:
monitoring the first-type signaling in a second resource block subset using a spatial parameter of the at least one second reference signal before the first time;
wherein the first resource block subset and the second resource block subset are associated with a same control resource set.
16 . The method according to claim 14 , further comprising:
when the target cell is not added by the first node, monitoring a second-type signaling in a third resource block subset after a second time using a spatial parameter of the first reference signal;
wherein the first reference signal is used to determine the third resource block subset; and wherein the second-type signaling is received from the target cell.
17 . The method according to claim 16 , further comprising:
receiving a first information block;
wherein of the first information block is received from the target cell, the first information block being used to determine configuration information of the third resource block subset.
18 . The method according to claim 14 , further comprising:
receiving a second information block; and
monitoring a third-type signaling in a fourth resource block set using a spatial parameter of the first reference signal;
wherein the second information block includes configuration information of the fourth resource block set, and the second information block is received from a second cell, the second cell being added by the first node; and wherein the third-type signaling is received from the target cell.
19 . The method according to claim 14 , further comprising:
receiving a first reference signal set, the first reference signal set including at least one reference signal;
wherein a measurement of the first reference signal set is used to trigger transmission of the first signal.
20 . The method according to claim 14 , further comprising:
receiving a plurality of configuration information blocks;
wherein the plurality of configuration information blocks respectively indicate the plurality of reference signals; at least one reference signal among the plurality of reference signals is received from a second cell, the second cell being added by the first node; wherein among the plurality of configuration information blocks each configuration information block corresponding to a reference signal transmitted by the first cell includes a first index, the first index being used to indicate the first cell; and wherein among the plurality of configuration information blocks each configuration information block corresponding to a reference signal transmitted by the second cell includes a second index, the second index being used to indicate the second cell.