Signal measurement method, measurement gap configuration method, terminal, and network device
A signal measurement method includes: obtaining measurement gap configuration information, where the measurement gap configuration information includes at least one of first measurement gap configuration information or second measurement gap configuration information, and gap pattern configuration information indicated by the second measurement gap configuration information is different from gap pattern configuration information indicated by the first measurement gap configuration information; and performing signal measurement within a measurement gap according to the measurement gap configuration information.
1 . A signal measurement method, comprising:
obtaining, by a terminal, measurement gap configuration information via a radio resource control (RRC) signaling, wherein the measurement gap configuration information is used for measurement on positioning signals, the measurement gap configuration information comprises first measurement gap configuration information and second measurement gap configuration information, and gap pattern configuration information indicated by the second measurement gap configuration information is different from gap pattern configuration information indicated by the first measurement gap configuration information;
receiving, by the terminal, trigger signaling via a medium access control control element (MAC CE) signaling, wherein the trigger signaling is used to trigger an on-demand measurement gap, and configuration information of the on-demand measurement gap is one of a plurality of the first measurement gap configuration information or a plurality of the second measurement gap configuration information;
in a case that a signal for measurement is a positioning reference signal (PRS), if duration of the PRS is greater than a length of the on-demand measurement gap and the terminal expects to perform measurement on a PRS located beyond a length of the on-demand measurement gap corresponding to the measurement gap configuration information, performing, by the terminal, measurement on a target PRS which is located outside an interruption time of the on-demand measurement gap and within an activated downlink bandwidth part and has a numerology that is the same as that of the activated downlink bandwidth part; and
reporting, by the terminal, a measurement result to a network device;
wherein:
the measurement result comprises an identifier used to indicate whether the measurement result is related to the on-demand measurement gap;
in a case that a measurement on a PRS resource is performed within the on-demand measurement gap, the identifier indicates that the measurement result reported by the terminal is related to the on-demand measurement gap;
in a case that the measurement on the PRS resource is not performed within the on-demand measurement gap, the identifier indicates that the measurement result reported by the terminal is unrelated to the on-demand measurement gap;
the gap pattern configuration information comprises at least one of a gap length or a gap repetition period;
a gap length indicated by the second measurement gap configuration information is greater than a gap length indicated by the first measurement gap configuration information; and
when the gap length indicated by the second measurement gap configuration information is 10 ms, the gap repetition period indicated by the second measurement gap configuration information is 80 ms.
2 . The method according to claim 1 , wherein the gap pattern configuration information indicated by the second measurement gap configuration information is obtained by extending the gap pattern configuration information indicated by the first measurement gap configuration information.
3 . The method according to claim 1 , wherein the gap pattern configuration information further comprises:
a gap pattern identifier; and
the gap pattern configuration information indicated by the first measurement gap configuration information and the gap pattern configuration information indicated by the second measurement gap configuration information satisfy at least one of:
a gap repetition period indicated by the second measurement gap configuration information is greater than a gap repetition period indicated by the first measurement gap configuration information; or
a gap pattern identifier indicated by the second measurement gap configuration information is greater than a gap pattern identifier indicated by the first measurement gap configuration information.
4 . The method according to claim 1 , wherein before the obtaining, by a terminal, measurement gap configuration information via a radio resource control (RRC) signaling, the method further comprises:
sending first request signaling; wherein:
the first request signaling is used to indicate to a network device that the terminal is to start performing signal measurement by using a measurement gap corresponding to the first measurement gap configuration information or a measurement gap corresponding to the second measurement gap configuration information; and
the first request signaling comprises at least one of:
a start parameter;
a gap pattern identifier expected by the terminal;
a gap offset expected by the terminal;
a gap timing advance expected by the terminal;
a gap length scaling factor expected by the terminal;
a gap period scaling factor expected by the terminal;
a gap pattern type expected by the terminal; or
frequency information for measurement expected by the terminal, wherein the frequency information for measurement comprises at least one of a reference point A of a positioning frequency layer, a subcarrier spacing, a starting physical resource block (PRB) position, or a bandwidth.
5 . The method according to claim 1 , wherein before the obtaining measurement gap configuration information, the method further comprises:
sending capability information to a network device; wherein
the capability information comprises at least one of following:
whether a measurement gap is supported;
whether an extended measurement gap is supported; or
whether an on-demand measurement gap is supported.
6 . The method according to claim 1 , after the obtaining, by a terminal, measurement gap configuration information via a radio resource control (RRC) signaling, the method further comprises:
obtaining, by the terminal a start time of the on-demand measurement gap according to the trigger signaling; and
performing, by the terminal signal measurement by using the on-demand measurement gap, based on the start time of the on-demand measurement gap.
7 . The method according to claim 6 , wherein the obtaining the start time of the on-demand measurement gap according to the trigger signaling comprises:
obtaining the start time of the on-demand measurement gap based on a reception time point of the trigger signaling and a preset time interval; wherein:
the preset time interval is an offset between the start time of the on-demand measurement gap and the reception time point of the trigger signaling.
8 . The method according to claim 7 , wherein the preset time interval comprises:
a slot offset; or
a slot offset and a symbol offset within slot; or
an absolute time offset in units of preset time.
9 . The method according to claim 6 , wherein before the obtaining the measurement gap configuration information, or before the receiving the trigger signaling, the method further comprises:
sending third request signaling;
wherein:
the third request signaling is used to request an on-demand measurement gap; and
the third request signaling comprises at least one of:
a gap pattern identifier expected by the terminal;
a gap length expected by the terminal;
a gap timing advance expected by the terminal;
a gap length scaling factor expected by the terminal;
a gap pattern type expected by the terminal;
frequency information for measurement expected by the terminal; or
a gap time-domain location expected by the terminal.
10 . A terminal, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, cause the terminal to perform:
obtaining measurement gap configuration information via a radio resource control (RRC) signaling, wherein the measurement gap configuration information is used for measurement on positioning signals, the measurement gap configuration information comprises first measurement gap configuration information and second measurement gap configuration information, and gap pattern configuration information indicated by the second measurement gap configuration information is different from gap pattern configuration information indicated by the first measurement gap configuration information;
receiving, by the terminal, trigger signaling via a medium access control control element (MAC CE) signaling, wherein the trigger signaling is used to trigger an on-demand measurement gap, and configuration information of the on-demand measurement gap is one of a plurality of the first measurement gap configuration information or a plurality of the second measurement gap configuration information;
in a case that a signal for measurement is a positioning reference signal (PRS), if duration of the PRS is greater than a length of the measurement gap and the terminal expects to perform measurement on a PRS located beyond a length of the measurement gap corresponding to the measurement gap configuration information, performing measurement on a target PRS, the target PRS being located outside an interruption time of the measurement gap and within an activated downlink bandwidth part and having a numerology that is the same as that of the activated downlink bandwidth part; and
reporting a measurement result to a network device;
wherein:
the measurement result comprises an identifier used to indicate whether the measurement result is related to the on-demand measurement gap;
in a case that a measurement on a PRS resource is performed within the on-demand measurement gap, the identifier indicates that the measurement result reported by the terminal is related to the on-demand measurement gap;
in a case that the measurement on the PRS resource is not performed within the on-demand measurement gap, the identifier indicates that the measurement result reported by the terminal is unrelated to the on-demand measurement gap;
the gap pattern configuration information comprises at least one of a gap length or a gap repetition period;
a gap length indicated by the second measurement gap configuration information is greater than a gap length indicated by the first measurement gap configuration information; and
when the gap length indicated by the second measurement gap configuration information is 10 ms, the gap repetition period indicated by the second measurement gap configuration information is 80 ms.