Information determination method and device, electronic device and storage medium
Embodiments of the present disclosure provide an information determination method and device, an electronic device and a storage medium. The method includes: determining a reference signal in a case where a preset condition is satisfied; and determining information of a downlink signal or downlink channel according to the reference signal. The embodiments of the present disclosure solve a problem that physical downlink shared channels (PDSCHs) of multiple component carriers (CCs) cannot be received normally due to conflict of the PDSCHs of the CCs in a time domain in the related art.
1 . An information determination method comprising:
determining a reference signal in a case where a preset condition is satisfied, wherein the preset condition comprises at least one of Transmission Configuration Indicator (TCI) states configured in a frequency domain bandwidth where a downlink signal or downlink channel is located comprises a quasi-colocated (QCL) reference signal associated with a spatial reception parameter; and
determining a QCL assumption of the downlink signal or downlink channel according to the reference signal,
wherein the reference signal is determined according to a relation between a carrier where a control channel for scheduling the downlink signal or downlink channel is located and a carrier where the downlink signal or downlink channel is located, wherein determining the reference signal according to the relation between the carrier where the control channel for scheduling the downlink signal or downlink channel is located and the carrier where the downlink signal or downlink channel is located comprises:
acquiring the reference signal according to first-type parameters in a case where the carrier where the control channel for scheduling the downlink signal or downlink channel is located is different from the carrier where the downlink signal or downlink channel is located; and
acquiring the reference signal according to second-type parameters in a case where the carrier where the control channel for scheduling the downlink signal or downlink channel is located is the same as the carrier where the downlink signal or downlink channel is located, wherein the first-type parameters and the second-type parameters are different; and
wherein the information determination method further comprises determining the reference signal according to a type of the downlink signal and the relation between the carrier where the control channel for scheduling the downlink signal or downlink channel is located and the carrier where the downlink signal or downlink channel is located, wherein determining the reference signal according to the type of the downlink signal and the relation between the carrier where the control channel for scheduling the downlink signal or downlink channel is located and the carrier where the downlink signal or downlink channel is located comprises:
in a case where the downlink signal comprises an aperiodic measurement reference signal, and the carrier where the aperiodic measurement reference signal is located is different from the carrier where the control channel for scheduling the aperiodic measurement reference signal is located, acquisition parameters of the reference signal comprise a QCL reference signal of Control Resource Set (CORESET) that satisfies a predetermined feature and is included in a time unit latest to the aperiodic measurement reference signal in the carrier where the aperiodic measurement reference signal is located;
in a case where the downlink signal comprises a demodulation reference signal of a downlink data channel, and the carrier where the downlink data channel is located is different from the carrier where the control channel for scheduling the downlink data channel is located, acquisition parameters of the reference signal do not comprise a QCL reference signal of CORESET that satisfies the predetermined feature and is included in a time unit latest to the downlink data channel in a carrier where the demodulation reference signal of the downlink data channel is located,
wherein the CORESET that satisfies the predetermined feature is CORESET with a minimum CORESET identifier (ID) in the time unit.
2 . The method according to claim 1 , wherein the preset condition further comprises at least one of the following:
a time interval between the downlink signal or downlink channel and a control channel for scheduling the downlink signal or downlink channel is less than a preset threshold;
the control channel for scheduling the downlink signal or downlink channel does not comprise a TCI indication domain.
3 . A non-transitory computer-readable storage medium, storing a computer program, wherein the computer program is configured to execute the method according to claim 1 at runtime.
4 . An electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to execute the method according to claim 1 .
5 . The method according to claim 1 , further comprising determining the reference signal according to a QCL reference signal included in B TCI states, wherein the B TCI states are from A TCI states corresponding to one predetermined TCI codepoint in a mapping table between a TCI codepoint and a TCI state, wherein A is a positive integer greater than 1, B is a positive integer less than A, and the one predetermined TCI codepoint is a lowest TCI codepoint in a TCI codepoint set in the mapping table, wherein the number of TCI states of each TCI codepoint in the TCI codepoint set is equal to a preset value.
6 . The method according to claim 5 , wherein
at least one of following information is associated with the B value:
the number of CORESET groups included in a frequency domain bandwidth for scheduling the downlink signal or downlink channel;
the number of port groups included in the downlink signal;
the maximum number of port groups included in the downlink signal, wherein one port group corresponds to one TCI state, and different port groups correspond to different TCI states;
the maximum number of data channels received on a same time domain symbol in one frequency domain bandwidth;
the number of channels received on a same time domain symbol in one frequency domain bandwidth; or
the number of channel scrambling parameters configured in one frequency domain bandwidth.
7 . The method according to claim 5 , wherein the mapping table is determined in a following manner:
determining, from N CORESET groups, a CORESET group including a control channel corresponding to the downlink signal or downlink channel, wherein N is larger than 1; and
determining, from N mapping tables between the TCI codepoint and the TCI state, a mapping table corresponding to the CORESET group.
8 . The method according to claim 7 , wherein
the N CORESET groups correspond to the N mapping tables between the TCI codepoint and the TCI state;
each CORESET group in the N CORESET groups corresponds to one of the N mapping tables between the TCI codepoint and the TCI state;
wherein the N CORESET groups are located in one frequency domain bandwidth, and data channels corresponding to the N mapping tables are located in one frequency domain bandwidth; and the one frequency domain bandwidth is one bandwidth part.
9 . The method according to claim 8 , wherein the preset condition further comprises the number of CORESET groups included in a frequency domain bandwidth where the control channel for scheduling the downlink signal or downlink channel is located is greater than 1 and at least one of the following:
a time interval between the downlink signal or downlink channel and a control channel for scheduling the downlink signal or downlink channel is less than a preset threshold;
the control channel for scheduling the downlink signal or downlink channel does not comprise a TCI indication domain;
the downlink signal or channel and a control channel for scheduling the downlink signal or channel are in different carriers.
10 . An information determination device, comprising a memory storing instructions and a processor in communication with the memory, wherein the processor is configured to execute the instructions to:
determine a reference signal in a case where a preset condition is satisfied, wherein the preset condition comprises at least one of Transmission Configuration Indicator (TCI) states configured in a frequency domain bandwidth where a downlink signal or downlink channel is located comprises a quasi-colocated (QCL) reference signal associated with a spatial reception parameter; and
determine a QCL assumption of the downlink signal or downlink channel according to the reference signal,
wherein the processor is further configured to execute the instructions to determine the reference signal according to a relation between a carrier where the control channel for scheduling the downlink signal or downlink channel is located and a carrier where the downlink signal or downlink channel is located in a following manner:
acquiring the reference signal according to first-type parameters in a case where the carrier where the control channel for scheduling the downlink signal or downlink channel is located is different from the carrier where the downlink signal or downlink channel is located; and
acquiring the reference signal according to second-type parameters in a case where the carrier where the control channel for scheduling the downlink signal or downlink channel is located is the same as the carrier where the downlink signal or downlink channel is located, wherein the first-type parameters and the second-type parameters are different; and
wherein the processor is further configured to execute the instructions to determine the reference signal according to a type of the downlink signal and the relation between the carrier where the control channel for scheduling the downlink signal or downlink channel is located and the carrier where the downlink signal or downlink channel is located in a following manner:
in a case where the downlink signal comprises an aperiodic measurement reference signal, and the carrier where the aperiodic measurement reference signal is located is different from the carrier where the control channel for scheduling the aperiodic measurement reference signal is located, acquisition parameters of the reference signal comprise a QCL reference signal of Control Resource Set (CORESET) that satisfies a predetermined feature and is included in a time unit latest to the aperiodic measurement reference signal in the carrier where the aperiodic measurement reference signal is located;
in a case where the downlink signal comprises a demodulation reference signal of a downlink data channel, and the carrier where the downlink data channel is located is different from the carrier where the control channel for scheduling the downlink data channel is located, acquisition parameters of the reference signal do not comprise a QCL reference signal of CORESET that satisfies the predetermined feature and is included in a time unit latest to the downlink data channel in a carrier where the demodulation reference signal of the downlink data channel is located,
wherein the CORESET that satisfies the predetermined feature is CORESET with a minimum CORESET identifier (ID) in the time unit.
11 . The device according to claim 10 , wherein the preset condition further comprises at least one of the following:
a time interval between the downlink signal or downlink channel and a control channel for scheduling the downlink signal or downlink channel is less than a preset threshold;
the control channel for scheduling the downlink signal or downlink channel does not comprise a TCI indication domain.
12 . The device according to claim 10 , wherein the processor is further configured to execute the instructions to determine the reference signal according to a QCL reference signal included in B TCI states, wherein the B TCI states are from A TCI states corresponding to one predetermined TCI codepoint in a mapping table between a TCI codepoint and a TCI state, wherein A is a positive integer greater than 1, B is a positive integer less than A, and the one predetermined TCI codepoint is a lowest TCI codepoint in a TCI codepoint set in the mapping table, wherein the number of TCI states of each TCI codepoint in the TCI codepoint set is equal to a preset value.
13 . The device according to claim 12 , wherein
at least one of following information is associated with the B value:
the number of CORESET groups included in a frequency domain bandwidth for scheduling the downlink signal or downlink channel;
the number of port groups included in the downlink signal;
the maximum number of port groups included in the downlink signal, wherein one port group corresponds to one TCI state, and different port groups correspond to different TCI states;
the maximum number of data channels received on a same time domain symbol in one frequency domain bandwidth;
the number of channels received on a same time domain symbol in one frequency domain bandwidth; or
the number of channel scrambling parameters configured in one frequency domain bandwidth.
14 . The device according to claim 12 , wherein the processor is further configured to determine the mapping table in a following manner:
determining, from N CORESET groups, a CORESET group including a control channel corresponding to the downlink signal or downlink channel, wherein N is larger than 1; and
determining, from N mapping tables between the TCI codepoint and the TCI state, a mapping table corresponding to the CORESET group.
15 . The device according to claim 14 , wherein
the N CORESET groups correspond to the N mapping tables between the TCI codepoint and the TCI state;
each CORESET group in the N CORESET groups corresponds to one of the N mapping tables between the TCI codepoint and the TCI state;
wherein the N CORESET groups are located in one frequency domain bandwidth, and data channels corresponding to the N mapping tables are located in one frequency domain bandwidth; and the one frequency domain bandwidth is one bandwidth part.
16 . The device according to claim 15 , wherein the preset condition further comprises the number of CORESET groups included in a frequency domain bandwidth where the control channel for scheduling the downlink signal or downlink channel is located is greater than 1 and at least one of the following:
a time interval between the downlink signal or downlink channel and a control channel for scheduling the downlink signal or downlink channel is less than a preset threshold;
the control channel for scheduling the downlink signal or downlink channel does not comprise a TCI indication domain;
the downlink signal or channel and a control channel for scheduling the downlink signal or channel are in different carriers.