Method for reporting power headroom report and terminal
A method for reporting a power headroom report includes: in a case that a trigger condition for reporting a power headroom report is satisfied, reporting a power headroom report. The power headroom report includes power headroom report information of at least one power control object, and a power control object is an antenna panel or a beam.
1 . A method for reporting a power headroom report, performed by a terminal and comprising:
in a case that a trigger condition for reporting a power headroom report is satisfied, reporting a power headroom report, wherein the power headroom report comprises power headroom report information of at least two power control objects, and a power control object of the at least two power control objects is an antenna panel; wherein
the reporting the power headroom report comprises:
reporting the power headroom report by using at least one medium access control control element (MAC CE);
wherein, in response to carrying power headroom report information of a plurality of power control objects in a MAC CE of the at least one MAC CE, the power headroom report information of the plurality of power control objects is arranged in an order of identifiers of the plurality of power control objects or an order of corresponding numbers of the plurality of power control objects;
wherein the trigger condition comprises:
a link quality difference between a current power control object and a first power control object satisfying a sixth preset condition; wherein
the first power control object is any power control object or a specified power control object in power control objects of the terminal, other than the current power control object.
2 . The method according to claim 1 , wherein the trigger condition further comprises at least one of:
the current power control object having been changed;
a pathloss measurement value or a variation of a pathloss measurement value of the current power control object satisfying a first preset condition;
a power backoff value or a variation of a power backoff value of the current power control object satisfying a second preset condition;
a power management maximum power reduction (P-MPR) value or a variation of a P-MPR value of the current power control object satisfying a third preset condition;
a P-MPR difference between the current power control object and the first power control object satisfying a fourth preset condition;
a link quality value or a variation of a link quality value of the current power control object satisfying a fifth preset condition;
a power control object being activated, enabled, or added;
configuration information of the current power control object or configuration information of the first power control object having been changed; or
information about a serving transmission and reception point having been changed; wherein
the current power control object having been changed comprises:
a network side having indicating to change the current power control object; or
the terminal having changed the current power control object based on a preset change trigger condition;
or
the information about the serving transmission and reception point having been changed comprises:
a network side having configured or activated information about a new transmission and reception point; or
configuration information corresponding to the information about the serving transmission and reception point having been changed; or
related configuration information of a control resource set having been changed.
3 . The method according to claim 2 , wherein the related configuration information comprises at least one of control resource set pool index (CORESETPoolIndex) information, transmission configuration indicator state information, or search space information;
or
the configuration information corresponding to the information about the serving transmission and reception point comprises: at least one of a transmission and reception point identifier, CORESETPoolIndex information, a group identifier, a cell identity, or a physical cell identifier.
4 . The method according to claim 1 , wherein the reporting the power headroom report by using the at least one MAC CE comprises:
reporting the power headroom report by using one MAC CE, wherein the MAC CE carries power headroom report information of a preset power control object, and the preset power control object is a current power control object, a to-be-changed-to power control object, or a changed-to power control object.
5 . The method according to claim 1 , wherein the reporting the power headroom report by using the at least one MAC CE comprises:
reporting the power headroom report by using one MAC CE, wherein the MAC CE carries power headroom report information of at least two power control objects.
6 . The method according to claim 5 , wherein the MAC CE further carries identification information of the at least two power control-objects or index information corresponding to the at least two power control-objects.
7 . The method according to claim 6 , wherein the identification information or the index information comprises:
identification information of an antenna panel or index information corresponding to an antenna panel.
8 . The method according to claim 5 , wherein the power control object comprises a current power control object.
9 . The method according to claim 5 , wherein the power headroom report information comprises at least one of:
power headroom;
information about a serving cell;
maximum transmit power;
power management maximum power reduction (P-MPR);
duty cycle; or
indication information used to indicate whether there is power backoff.
10 . The method according to claim 9 , wherein
in a case that the MAC CE carries the power headroom report information of the at least two power control objects, any one piece of information in the power headroom report information is specific to the serving cell, or is specific to the power control object, or is specific to a power control object corresponding to the serving cell.
11 . The method according to claim 1 , wherein
each of the MAC CEs further carries identification information of the power control object or index information corresponding to the power control object; or
identification information of each of the MAC CEs corresponds to identification information of a corresponding power control object.
12 . The method according to claim 1 , before the reporting the power headroom report, further comprising:
determining power headroom information based on a measurement result corresponding to the power control object; wherein
the determining power headroom information based on a measurement result corresponding to the power control object comprises:
measuring a downlink reference signal corresponding to the power control object; and
determining a power headroom of the power control object based on a measurement result of the downlink reference signal.
13 . A terminal, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, causes the terminal to perform:
in a case that a trigger condition for reporting a power headroom report is satisfied, reporting a power headroom report, wherein the power headroom report comprises power headroom report information of at least two power control objects, and a power control object of the at least two power control objects is an antenna panel; wherein
the computer program, when executed by the processor, causes the terminal to perform:
reporting the power headroom report by using at least one medium access control control element (MAC CE);
and wherein in response to carrying power headroom report information of a plurality of power control objects in a MAC CE of the at least one MAC CE, the power headroom report information of the plurality of power control objects is arranged in an order of identifiers of the plurality of power control objects or an order of corresponding numbers of the plurality of power control objects;
wherein the trigger condition comprises:
a link quality difference between a current power control object and a first power control object satisfying a sixth preset condition; wherein
the first power control object is any power control object or a specified power control object in power control objects of the terminal, other than the current power control object.
14 . The terminal according to claim 13 , wherein the computer program, when executed by the processor, causes the terminal to perform:
reporting the power headroom report by using one MAC CE, wherein the MAC CE carries power headroom report information of at least two power control-objects.
15 . The terminal according to claim 14 , wherein the MAC CE further carries identification information of the at least two power control objects or index information corresponding to the at least two power control-objects.
16 . The terminal according to claim 13 , wherein the trigger condition further comprises at least one of:
the current power control object having been changed;
a pathloss measurement value or a variation of a pathloss measurement value of the current power control object satisfying a first preset condition;
a power backoff value or a variation of a power backoff value of the current power control object satisfying a second preset condition;
a power management maximum power reduction (P-MPR) value or a variation of a P-MPR value of the current power control object satisfying a third preset condition;
a P-MPR difference between the current power control object and the first power control object satisfying a fourth preset condition;
a link quality value or a variation of a link quality value of the current power control object satisfying a fifth preset condition;
a power control object being activated, enabled, or added;
configuration information of the current power control object or configuration information of the first power control object having been changed; or
information about a serving transmission and reception point having been changed; wherein
the current power control object having been changed comprises:
a network side having indicating to change the current power control object; or
the terminal having changed the current power control object based on a preset change trigger condition;
or
the information about the serving transmission and reception point having been changed comprises:
a network side having configured or activated information about a new transmission and reception point; or
configuration information corresponding to the information about the serving transmission and reception point having been changed; or
related configuration information of a control resource set having been changed.
17 . The terminal according to claim 16 , wherein the related configuration information comprises at least one of control resource set pool index (CORESETPoolIndex) information, transmission configuration indicator state information, or search space information;
or
the configuration information corresponding to the information about the serving transmission and reception point comprises: at least one of a transmission and reception point identifier, CORESETPoolIndex information, a group identifier, a cell identity, or a physical cell identifier.
18 . A non-transitory computer-readable storage medium, wherein a computer program is stored in the non-transitory computer-readable storage medium, and the computer program, when executed by a processor of a terminal, causes the terminal to perform:
in a case that a trigger condition for reporting a power headroom report is satisfied, reporting a power headroom report, wherein the power headroom report comprises power headroom report information of at least two power control objects, and a power control object of the at least two power control objects is an antenna panel; wherein
the computer program, when executed by the processor, causes the terminal to perform:
reporting the power headroom report by using at least one medium access control control element (MAC CE);
wherein in response to carrying power headroom report information of a plurality of power control objects in a MAC CE of the at least one MAC CE, the power headroom report information of the plurality of power control objects is arranged in an order of identifiers of the plurality of power control objects or an order of corresponding numbers of the plurality of power control objects;
wherein the trigger condition comprises:
a link quality difference between a current power control object and a first power control object satisfying a sixth preset condition; wherein
the first power control object is any power control object or a specified power control object in power control objects of the terminal, other than the current power control object.
19 . The non-transitory computer-readable storage medium according to claim 18 , wherein the trigger condition further comprises at least one of:
the current power control object having been changed;
a pathloss measurement value or a variation of a pathloss measurement value of the current power control object satisfying a first preset condition;
a power backoff value or a variation of a power backoff value of the current power control object satisfying a second preset condition;
a power management maximum power reduction (P-MPR) value or a variation of a P-MPR value of the current power control object satisfying a third preset condition;
a P-MPR difference between the current power control object and the first power control object satisfying a fourth preset condition;
a link quality value or a variation of a link quality value of the current power control object satisfying a fifth preset condition;
a power control object being activated, enabled, or added;
configuration information of the current power control object or configuration information of the first power control object having been changed; or
information about a serving transmission and reception point having been changed; wherein
the current power control object having been changed comprises:
a network side having indicating to change the current power control object; or
the terminal having changed the current power control object based on a preset change trigger condition;
or
the information about the serving transmission and reception point having been changed comprises:
a network side having configured or activated information about a new transmission and reception point; or
configuration information corresponding to the information about the serving transmission and reception point having been changed; or
related configuration information of a control resource set having been changed.
20 . The non-transitory computer-readable storage medium according to claim 19 , wherein the related configuration information comprises at least one of control resource set pool index (CORESETPoolIndex) information, transmission configuration indicator state information, or search space information;
or
the configuration information corresponding to the information about the serving transmission and reception point comprises: at least one of a transmission and reception point identifier, CORESETPoolIndex information, a group identifier, a cell identity, or a physical cell identifier.