CN113472493A

CN113472493A - Reference signal determination method and related equipment

Info

Publication number: CN113472493A
Application number: CN202010239652.6A
Authority: CN
Inventors: 吴凯
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2021-10-01
Anticipated expiration: 2040-03-30
Also published as: WO2021197192A1; CN113472493B

Abstract

The invention provides a method for determining a reference signal and related equipment, wherein the method comprises the following steps: determining a first reference signal based on the first set of search spaces; the first search space set is a search space set currently monitored by a Physical Downlink Control Channel (PDCCH); the first reference signal comprises a radio link monitoring reference signal RLM-RS or a beam failure monitoring reference signal BFD-RS. The method for determining the reference signal provided by the invention enables the terminal to determine the RLM-RS or the BFD-RS based on the search space set monitored by the PDCCH currently, so that the selected CORESET is more appropriate, and the accuracy of the RLM can be improved.

Description

Reference signal determination method and related equipment

Technical Field

The present invention relates to the field of wireless communication technologies, and in particular, to a method for determining a reference signal and a related device.

Background

In a wireless communication system (e.g., a fifth generation mobile communication system 5G NR, etc.), in order to ensure normal communication between devices in the communication system, usually, during a communication process, communication quality detection is performed, so that a fault is repaired or switched in time when the communication fault occurs, for example, a connected terminal (UE) evaluates downlink quality of a current serving cell through Radio Link Monitoring (RLM), and when the evaluated downlink quality cannot meet a requirement of the terminal, the terminal searches and selects a new cell to reestablish a Radio Link.

The terminal may perform RLM by using a Reference Signal (RS) corresponding to a Transmission Configuration Indicator (TCI) state (state) of Control resource set (CORESET) configured on the network side, specifically, select, from all CORESETs configured on the network side, a CORESET associated with a Search Space set having a shortest PDCCH monitoring period according to a Physical Downlink Control Channel (PDCCH) monitoring period configured in a Search Space set (SS set) of each CORESET, and use the RS indicated by an activated TCI state of the selected CORESET as the RLM-RS. However, due to the PDCCH search space for the terminal to perform PDCCH monitoring and the PDCCH search space configured by higher layer signaling, currently, the CORESET selected by the terminal based on the above method may not be suitable for performing RLM, which may result in the accuracy of RLM being reduced.

Disclosure of Invention

The embodiment of the invention provides a method for determining a reference signal and related equipment, which are used for solving the problem of low RLM accuracy in the RLM process of a terminal at present.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a method for determining a reference signal, which is applied to a terminal, and includes:

determining a first reference signal based on the first set of search spaces;

the first search space set is a search space set currently monitored by a Physical Downlink Control Channel (PDCCH); the first reference signal comprises a radio link monitoring reference signal RLM-RS or a beam failure monitoring reference signal BFD-RS.

In a second aspect, an embodiment of the present invention further provides a terminal, including:

a first processing module to determine a first reference signal based on a first set of search spaces;

In a third aspect, an embodiment of the present invention further provides a terminal, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps in the method for determining a reference signal according to the first aspect.

In a fourth aspect, the embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when being executed by a processor, the computer program implements the steps in the method for determining a reference signal according to the first aspect.

In the embodiment of the invention, a first reference signal is determined based on a first search space set; the first search space set is a search space set currently monitored by a Physical Downlink Control Channel (PDCCH); the first reference signal comprises a radio link monitoring reference signal RLM-RS or a beam failure monitoring reference signal BFD-RS. Therefore, the terminal can determine the RLM-RS or the BFD-RS based on the search space set monitored by the PDCCH currently, so that the selected CORESET is more suitable, and the accuracy of the RLM can be improved.

Drawings

Fig. 1 is a schematic structural diagram of a network system provided in an embodiment of the present invention;

fig. 2 is a schematic flowchart of a method for determining a reference signal according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 4 is a second schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 5 is a third schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 6 is a fourth schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 7 is a fifth schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 8 is a sixth schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 9 is a schematic diagram of a hardware structure of a terminal according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terms "comprises," "comprising," or any other variation thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the use of "and/or" in the specification and claims means that at least one of the connected objects, such as a and/or B, means that three cases, a alone, B alone, and both a and B, exist.

In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

Embodiments of the present invention are described below with reference to the accompanying drawings. The embodiment provided by the invention can be applied to a wireless communication system. The wireless communication system may be a 5G system, or an Evolved Long Term Evolution (lte) system, or a subsequent Evolved communication system.

Fig. 1 is a structural diagram of a network system according to an embodiment of the present invention, as shown in fig. 1, including a terminal 11 and a network-side device 12, where the terminal 11 may be a mobile communication device, for example: the terminal may be a mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), or a Wearable Device (Wearable Device), and the specific type of the terminal 11 is not limited in the embodiments of the present invention. The network side device 12 may be a 5G network side device (e.g., a gNB, a 5G NR NB), or may be a 4G network side device (e.g., an eNB), or may be a 3G network side device (e.g., an NB), or a network side device in a subsequent evolved communication system, and so on, it should be noted that a specific type of the network side device 12 is not limited in the embodiment of the present invention.

Referring to fig. 2, fig. 2 is a flowchart illustrating a method for determining a reference signal according to this embodiment, which is applied to a terminal, and as shown in fig. 2, the method for determining a reference signal includes the following steps:

step 201, determining a first reference signal based on a first Search Space set (SS set);

wherein, the first search space set is a search space set currently performing Physical Downlink Control Channel (PDCCH) monitoring; the first Reference Signal includes a Radio Link Monitoring Reference Signal (RLM-RS) or a Beam Failure Detection Reference Signal (BFD-RS).

Here, the terminal may determine the RLM-RS or the BFD-RS based on the search space set currently performing PDCCH monitoring, that is, only the Control resource set (core set) associated with the search space set currently performing PDCCH is selected to be the core for performing RLM or BFD, and may avoid performing RLM or BFD using the RS corresponding to the Transmission Configuration Indicator (TCI) state (state) of the core for not performing PDCCH monitoring, compared to selecting the core for performing RLM or BFD from all the core sets configured on the network side, so that the selected core is more suitable, and the accuracy of RLM may be improved.

When the network side configures the terminal with the CORESET, the terminal may perform RLM or BFD using the CORESET configured on the network side. Specifically, in the process of performing RLM or BFD by the existing terminal, the terminal may select, according to the PDCCH monitoring period configured for each CORESET, a CORESET associated with the set having the shortest PDCCH monitoring period from all CORESETs configured on the network side, and use an RS indicated by an activated TCI state of the selected CORESET as an RLM-RS or a BFD-RS.

In this embodiment, in the process of performing RLM or BFD by the terminal, the terminal determines, in the search space sets of all CORESET configured on the network side, at least one search space set currently performing PDCCH monitoring, that is, a first search space set according to the monitoring state of PDCCHs of all CORESET configured on the network side, and determines an RLM-RS or a BFD-RS based on the first search space set.

The determining of the first reference signal based on the first search space set may be that the terminal determines a part or all of the search space set in the first search space set, and uses an RS indicated by an activated TCI state of CORESET associated with the determined search space set as the RLM-RS or the BFD-RS.

Specifically, the determining of part or all of the search space sets in the first search space set may be that the terminal selects a preset number of search space sets with the shortest PDCCH monitoring period in the ordering according to the ordering of the PDCCH monitoring periods configured for each search space set in the first search space set, where the preset number is the number of the RLM-RS or BFD-RS that the terminal can monitor the most.

For example, in the process of performing RLM by the terminal, if 5 CORESET is configured on the network side and the terminal can monitor 2 RLM-RS at most, and in the ordering of the PDCCH monitoring periods configured for the 5 CORESET search space sets, the ordering is arranged in a descending order, and the PDCCH monitoring period of the CORESET1 search space set and the PDCCH monitoring period of the CORESET2 search space set are arranged at the end, that is, the PDCCH monitoring period of the CORESET1 search space set and the PDCCH monitoring period of the CORESET2 search space set are the shortest, the terminal takes the RS indicated by the active TCI state of the CORESET1 and the CORESET2 as the RLM-RS.

It should be noted that the RS indicated by the activated TCI State of the CORESET may be that the network side configures at least one TCI State for each CORESET, and each TCI State is configured with a Channel State Information Reference Signal (CSI-RS) or a Synchronization Signal Block (Synchronization Signal and PBCH Block, SSB), and may activate one TCI State of at least one TCI State, and the terminal uses the CSI-RS or SSB indicated by the activated TCI State as the RLM-RS or BFD-RS in the RLM or BFD process, that is, the RLM-RS or BFD-RS is the CSI-RS or SSB indicated by the activated TCI State.

In this embodiment, the first search space set may be at least one search space set currently performing PDCCH monitoring.

Alternatively, in some embodiments, the first set of search spaces includes at least one of:

at least one search space set in the search space sets configured on the network side, wherein the at least one search space set belongs to at least one search space set group;

the terminal determines a search space set in at least one search space set group for PDCCH monitoring according to the PDCCH indication or the running state of the timer;

configuring, by the network side, a set of search spaces in a default set of search spaces;

a search space set which is not configured with a search space set group identifier;

searching space sets in the plurality of searching space set groups are searching space sets with the shortest or longest PDCCH monitoring period;

and searching space sets with the largest or smallest index value in the plurality of searching space set groups.

Here, the first search space set may include at least one item described above, so that a more suitable CORESET may be selected for RLM or BFD, and the accuracy of RLM or BFD may be further improved.

It should be noted that, in the wireless communication system, the network side may divide the configured search space sets in all CORESET into multiple search space set groups, and each search space set group is configured with a corresponding search space set group identifier; certainly, the network side may also configure that a part of the search space set does not belong to any search space set group, that is, does not configure a search space set group identifier for the search space set, so that in the RLM or BFD, the terminal may perform corresponding processing according to the search space set group, the search space set group identifier, or whether the search space set group identifier is configured.

In this embodiment, in the process that the terminal performs RLM or BFD using the determined first reference signal, the terminal may dynamically perform a Search Space set Switching (i.e., a Search Space set Switching) in some cases, that is, switch a Search Space set of a currently monitored PDCCH, so that the Search Space set in the first Search Space set is changed.

For example, when the network side divides the configured search space sets in all CORESET into a plurality of search space set groups, the network side may instruct the terminal to perform a search space set group for PDCCH monitoring through the PDCCH, and when the search space set group instructed by the PDCCH is different from the currently used search space set group, the search space set of the search space set group currently performing PDCCH monitoring is switched to the search space set of another search space set group; or, if the PDCCH monitoring is performed using the search space sets of one search space set group during the running of the timer, when the timer expires, the terminal automatically triggers the PDCCH monitoring using the search space set of another search space set group.

It is to be understood that the parameters of the timer (or referred to as timer) are not particularly limited in the embodiments of the present invention. The timer may be a timer defined or configured for the Search Space Set group switching, or other timers, such as a discontinuous reception duration timer (drxonductivitetimer), a DRX inactivity timer (drxinactytimer), a random access contention resolution timer (ra-ContentionResolutionTimer), a beam failure recovery timer (beamFailureRecoveryTimer), a configuration granted timer (configuredtime), an uplink scheduling prohibit timer (sr-ProhibitTimer), a partial bandwidth deactivation timer (bwp-inactivetytimer), a data deactivation timer (datainactivettimer), a secondary cell deactivation timer (sldedicativanttimer), a downlink retransmission DRX timer (DRX-retransmission rdl), an uplink retransmission DRX timer (DRX-retransmission ul), and the like.

In addition, when the search space set of the currently monitored PDCCH is switched, that is, the search space set in the first search space set is changed, the search space set with the shortest PDCCH monitoring period specified in the first search space set may also be changed.

In some embodiments, the method for determining a reference signal may further include:

determining whether a PDCCH monitors on a first CORESET associated with the first search space set or not according to the first search space set;

and determining a second CORESET associated with the search space set with the shortest PDCCH monitoring period according to the first search space set.

Here, the terminal can monitor whether the CORESET monitored by the PDCCH is switched in time; and timely determining whether the search space set configured with the shortest PDCCH monitoring period is changed.

It should be noted that the first CORESET may be a CORESET associated with at least one search space set in the first search space set.

In a further embodiment, after determining whether there is PDCCH monitoring on the first core set associated with the first search space set according to the first search space set, the method further includes:

under the condition that no PDCCH monitors on the first control resource set, determining CSI-RS or SSB indicated by activated TCI state of a third CORESET as the first reference signal;

wherein the third CORESET is a control resource set other than the first control resource set.

Here, when there is no PDCCH monitoring on the first CORESET associated with the first search space set, that is, when the search space set currently performing PDCCH monitoring is switched, the terminal may determine, as the first reference signal, the CSI-RS or the SSB indicated by the activated TCI state of the CORESET other than the first CORESET, so as to switch the CORESET used for RLM or BFD in time when the search space set performing PDCCH monitoring is switched, avoid performing RLM or BFD using the CORESET not performing PDCCH monitoring, and further improve the accuracy of RLM.

For example, in the process of performing RLM by the terminal, it is assumed that the network side is configured with 5 CORESET and the terminal can monitor 2 RLM-RS at most, and at the current time, CORESET1 and CORESET2 (i.e. the first CORESET) are used for performing RLM, the first search space set includes search space set1 of CORESET1 and search space set2 of CORESET2, both search space set1 and search space set2 belong to search space set group 1, if the network side instructs the terminal to switch to the search space set using search space set group 2 through PDCCH for PDCCH monitoring, and search space set group 2 includes search space set3 of CORESET3 (i.e. the third CORESET), the terminal determines CSI-RS or rlsb indicated by the active TCI state of CORESET3 as m-RS.

In this embodiment, in all the CORESETs configured on the network side, there may be a case where the PDCCH configured by the search space set of the multiple CORESETs has the shortest monitoring period, and if the PDCCH configured by the search space set of the multiple CORESETs has the same and shortest monitoring period, the number of the multiple CORESETs exceeds the preset number, in this case, the terminal may preferentially select the preset number of CORESETs whose index values satisfy the preset condition for RLM or BFD according to the index values of the multiple CORESETs.

For example, in the process of performing BFD by the terminal, if 5 CORESET are configured on the network side and the terminal can monitor 1 RLM-RS at most, if the PDCCH monitoring period of the search space set of CORESET3 is the same as and shortest to the PDCCH monitoring period of the search space set of CORESET4 and the index value of CORESET3 satisfies the preset condition, the terminal takes the RS indicated by the activated TCI state of CORESET3 as the BFD-RS.

Specifically, in the case that a second CORESET associated with a search space set with a shortest PDCCH monitoring period is determined according to the first search space set, where the second CORESET is N CORESETs with a largest or smallest index value and N is a positive integer when the shortest PDCCH monitoring periods of the multiple CORESETs are the same, the multiple CORESETs are associated with the first search space set. In this way, when the shortest PDCCH monitoring period of the multiple CORESETs associated with the first search space set is the same, that is, the terminal has the multiple CORESETs configured with the shortest PDCCH monitoring period, the terminal may determine the CORESET (i.e., the second CORESET) used for RLM or BFD according to the index values of the multiple CORESETs, so that the selected CORESET is further more suitable, and the accuracy of RLM or BFD is further improved.

It should be noted that N is the number of the RLM-RSs or BFD-RSs that the terminal can monitor at most, that is, N is the preset number, and N is determined by the maximum SSB of the frequency band in which the terminal operates. For example, in some embodiments, the terminal operates in a first frequency band, the maximum SSB of the first frequency band is 4, and then at most 2 RLM-RSs or BFD-RSs can be monitored by the terminal at this time, that is, N ═ 2.

In addition, the terminal determines a first reference signal, which is a CSI-RS or SSB indicated by an active TCI state of a CORESET selected for RLM or BFD, as the first reference signal, so that the method further includes determining, according to the first search space set, a second CORESET associated with a search space set having a shortest PDCCH monitoring period, where the first reference signal is a CSI-RS or SSB indicated by an active TCI state of a second control resource set, thereby implementing timely updating of the reference signal.

In this embodiment, in the process that the terminal performs RLM using the first reference signal, the terminal may control operation of a T310 timer of the RLM according to the first reference signal, an N310 counter, and an N311 counter, and determine whether the RLM fails according to an operation state of the T310 timer, which is specifically as follows:

if the physical layer measurement of the terminal calculates that the link quality evaluated by X RLM-RSs (the X RLM-RSs are the RLM-RSs in the first reference signal) on the currently activated Bandwidth Part (BWP) is worse than the threshold Q configured by the higher layer_outIf the terminal is up to the high layerAn out-of-sync (OOS) indication; if the high layer continuously receives N310 OOS indications, a T310 timer is started;

if the physical layer of the terminal measures that at least one of the link quality evaluated by X RLM-RSs on the currently activated BWP is better than a threshold Qin configured by a higher layer, reporting an in-sync (IS) indication to the higher layer. Stopping the running of the T310 timer if the higher layer continuously receives N311 IS indications;

when the T310 timer runs out of time, the terminal determines that a Radio Link Failure (RLF) occurs, and the user plane data transmission between the terminal and the network is interrupted;

the value of X is associated with the terminal operating frequency band, for example, the maximum value of X is 2 in the case of less than 3 GHz; between 3GHz-6GHz, X ═ 4; in the case of greater than 6GHz, X ═ 8; the value of N310, the value of N311, and the runtime length of T310 are all network configured.

In some embodiments, after determining the first reference signal based on the first set of search spaces, the method further comprises:

in the case that the first reference signal is changed, if the first reference signal includes an RLM-RS, performing at least one of the following:

setting the N310 counter to 0;

setting the N311 counter to 0;

in the case that the T310 timer is running, the T310 timer is reset.

Here, the terminal may set 0 to the N310 counter and the N311 counter of the RLM and reset the T310 timer in case that the first reference signal is changed, i.e., the switching of the search space set is performed, thereby further improving the accuracy of the RLM.

In addition, in the process that the terminal performs BFD by using the first reference signal, the network side configures Y periodically transmitted BFD-RSs for each BWP configured to the terminal (the Y periodically transmitted BFD-RSs are reference signals in the first reference signal), and the BFD-RSs may be periodic CSI-RSs or SSBs; the physical layer of the terminal measures the BFD-RS, and determines whether to report a beam failure event (BFI) indication to the higher layer according to the measurement result, which is specifically as follows:

if the physical layer measurement of the terminal calculates that the link quality difference corresponding to all service BFD-RS(s) on the BWP activated by a certain service cell terminal is larger than a threshold value, reporting a BFI indication to a high layer (such as a Media Access Control (MAC) layer); otherwise, no indication is sent to the higher layer;

the high level of the terminal is provided with a BFD timer (BFD timer) and a BFD counter (BFI counter), when the terminal high level receives a BFI instruction reported by a physical layer, the BFD timer is started or restarted, and the BFD counter is subjected to accumulation 1 operation; and if the count of the BFD counter is more than or equal to the maximum number configured by the network side, the terminal judges that the beam failure occurs in the current service cell and triggers the beam recovery process. In addition, if the beam failure detection timer runs out of time, the higher layer of the terminal resets the count of the BFD counter to 0.

in the case that the first reference signal is changed, if the first reference signal includes a BFD-RS, performing at least one of:

setting a BFD counter to be 0;

the BFD timer is reset.

Here, the terminal may set the BFD counter to 0 and reset the BFD timer in case the first reference signal is changed, i.e., the switching of the search space set is performed, thereby further improving the accuracy of BFD.

Additionally, in some embodiments, the determining a first reference signal based on the first set of search spaces includes:

determining a first reference signal based on a first set of search spaces if it is determined that the terminal is not configured with reference signals.

Here, the terminal selects, among all the CORESETs configured on the network side, the CORESET associated with the search space set currently performing PDCCH monitoring to perform RLM or BFD only when the terminal is not configured with the reference signal, and performs RLM or BFD using the configured reference signal when the terminal is configured with the reference signal, so that the efficiency of RLM or BFD can be improved.

In this embodiment, the terminal has the capability of executing step 201, that is, the terminal may determine the first reference signal based on the first search space set, and at this time, the method further includes: and sending a capability indication to a network side, wherein the capability indication is used for indicating that the terminal has the capability of determining the first reference signal based on the first search space set. Therefore, the terminal can inform the network side in time, and the communication performance of the wireless communication system is improved.

In addition, in the case that the terminal has the capability of performing the step 201, the terminal may perform the step 201 in any case, or in some embodiments, before determining the first reference signal based on the first search space set, the method further includes: receiving Radio Resource Control (RRC) signaling sent by a network side, where the RRC signaling is used to indicate whether the terminal performs the determining of the first reference signal based on the first search space set. Here, the network side may indicate whether the terminal uses its capability of performing step 201 through RRC signaling.

It should be noted that, if the terminal receives the RRC signaling and the RRC signaling is used to instruct the terminal to perform the determining of the first reference signal based on the first search space set, the terminal performs step 201.

Referring to fig. 3, fig. 3 is a terminal according to an embodiment of the present invention, and as shown in fig. 3, a terminal 300 includes:

a first processing module 301, configured to determine a first reference signal based on a first set of search spaces;

Optionally, the first search space set includes at least one of:

Optionally, as shown in fig. 4, the terminal 300 further includes:

a second processing module 302 configured to perform at least one of:

determining whether a PDCCH monitors on a first control resource set associated with the first search space set or not according to the first search space set;

and determining a second control resource set associated with the search space set with the shortest PDCCH monitoring period according to the first search space set.

Optionally, as shown in fig. 5, the terminal 300 further includes:

a third processing module 303, configured to determine, when there is no PDCCH monitoring on the first control resource set, that a channel state information reference signal CSI-RS or a synchronization signal block SSB indicated by an active TCI state of a third control resource set is the first reference signal;

wherein the third set of control resources is a set of control resources other than the first set of control resources.

Optionally, in a case that a shortest PDCCH monitoring period of multiple control resource sets is the same, the second control resource set is N control resource sets with a largest or smallest index value, where N is a positive integer, and the multiple control resource sets are associated with the first search space set.

Optionally, the first reference signal is a CSI-RS or an SSB indicated by an activated TCI state of the second set of control resources.

Optionally, as shown in fig. 6, the terminal 300 further includes:

a fourth processing module 304, configured to, in case that the first reference signal is changed, if the first reference signal includes an RLM-RS, perform at least one of the following:

setting the N310 counter to 0;

setting the N311 counter to 0;

resetting the T310 timer if the T310 timer is running; alternatively, the first and second electrodes may be,

if the first reference signal comprises a BFD-RS, performing at least one of:

setting a BFD counter to be 0;

the BFD timer is reset.

Optionally, the terminal operates in a first frequency band, and a maximum SSB of the first frequency band is 4.

Optionally, the first processing module 301 is specifically configured to:

Optionally, as shown in fig. 7, the terminal 300 further includes:

a sending module 305, configured to send a capability indication to a network side, where the capability indication is used to indicate that the terminal has a capability of determining the first reference signal based on the first search space set.

Optionally, as shown in fig. 8, the terminal 300 further includes:

a receiving module 306, configured to receive a radio resource control RRC signaling sent by a network side, where the RRC signaling is used to indicate whether the terminal determines the first reference signal based on the first search space set.

It should be noted that, in the embodiment of the present invention, the terminal or the base station node 300 may be a terminal in an implementation manner in the method embodiment shown in fig. 2, and any implementation manner of the terminal in the method embodiment may be implemented by the terminal 300 in the embodiment of the present invention, and the same beneficial effects are achieved, and in order to avoid repetition, details are not described here again.

Fig. 9 is a schematic diagram of a hardware structure of a terminal for implementing various embodiments of the present invention, where the terminal 900 includes, but is not limited to: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909, a processor 910, and a power supply 911. Those skilled in the art will appreciate that the terminal configuration shown in fig. 9 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.

Wherein, the processor 910 is configured to:

determining a first reference signal based on the first set of search spaces;

Optionally, the first search space set includes at least one of:

Optionally, the processor 910 is further configured to perform at least one of the following:

Optionally, the processor 910 is further configured to:

under the condition that no PDCCH monitors on the first control resource set, determining a channel state information reference signal (CSI-RS) or a Synchronization Signal Block (SSB) indicated by an activated TCI state of a third control resource set as the first reference signal;

Optionally, the processor 910 is further configured to:

setting the N310 counter to 0;

setting the N311 counter to 0;

if the first reference signal comprises a BFD-RS, performing at least one of:

setting a BFD counter to be 0;

the BFD timer is reset.

Optionally, the processor 910 is further configured to:

the determining a first reference signal based on the first set of search spaces comprises:

Optionally, the radio frequency unit 901 is configured to:

and sending a capability indication to a network side, wherein the capability indication is used for indicating that the terminal has the capability of determining the first reference signal based on the first search space set.

Optionally, the radio frequency unit 901 is configured to:

receiving Radio Resource Control (RRC) signaling sent by a network side, wherein the RRC signaling is used for indicating whether the terminal determines the first reference signal based on the first search space set.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 901 may be used for receiving and sending signals during a message transmission and reception process or a call process, and specifically, after receiving downlink data from a base station, the downlink data is processed by the processor 910; in addition, the uplink data is transmitted to the base station. Generally, the radio frequency unit 901 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 901 can also communicate with a network and other devices through a wireless communication system.

The terminal provides wireless broadband internet access to the user through the network module 902, such as helping the user send and receive e-mails, browse web pages, access streaming media, and the like.

The audio output unit 903 may convert audio data received by the radio frequency unit 901 or the network module 902 or stored in the memory 909 into an audio signal and output as sound. Also, the audio output unit 903 may also provide audio output related to a specific function performed by the terminal 900 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 903 includes a speaker, a buzzer, a receiver, and the like.

The input unit 904 is used to receive audio or video signals. The input Unit 904 may include a Graphics Processing Unit (GPU) 9041 and a microphone 9042, and the Graphics processor 9041 processes image data of a still picture or video obtained by an image capturing device (such as a camera) in a video capture mode or an image capture mode. The processed image frames may be displayed on the display unit 906. The image frames processed by the graphic processor 9041 may be stored in the memory 909 (or other storage medium) or transmitted via the radio frequency unit 901 or the network module 902. The microphone 9042 can receive sounds and can process such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 901 in case of the phone call mode.

Terminal 900 can also include at least one sensor 905, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 9061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 9061 and the backlight when the terminal 900 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 905 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which are not described in detail herein.

The display unit 906 is used to display information input by the user or information provided to the user. The Display unit 906 may include a Display panel 9061, and the Display panel 9061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 907 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function indications of the terminal. Specifically, the user input unit 907 includes a touch panel 9071 and other input devices 9072. The touch panel 9071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 9071 (e.g., operations by a user on or near the touch panel 9071 using a finger, a stylus, or any other suitable object or accessory). The touch panel 9071 may include two parts, a touch detection device and a touch indicator. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch indicator; the touch indicator receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 910, receives a command from the processor 910, and executes the command. In addition, the touch panel 9071 may be implemented by using various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The user input unit 907 may include other input devices 9072 in addition to the touch panel 9071. Specifically, the other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (such as a volume indication key, a switch key, and the like), a track ball, a mouse, and a joystick, which are not described herein again.

Further, the touch panel 9071 may be overlaid on the display panel 9071, and when the touch panel 9071 detects a touch operation on or near the touch panel 9071, the touch panel is transmitted to the processor 910 to determine the type of the touch event, and then the processor 910 provides a corresponding visual output on the display panel 9061 according to the type of the touch event. Although in fig. 9, the touch panel 9071 and the display panel 9061 are two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 9071 and the display panel 9061 may be integrated to implement the input and output functions of the terminal, which is not limited herein.

The interface unit 908 is an interface through which an external device is connected to the terminal 900. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. Interface unit 908 can be used to receive input from external devices (e.g., data information, power, etc.) and transmit the received input to one or more elements within terminal 900 or can be used to transmit data between terminal 900 and external devices.

The memory 909 may be used to store software programs as well as various data. The memory 909 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 909 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.

The processor 910 is an instruction center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by running or executing software programs and modules stored in the memory 909 and calling data stored in the memory 909, thereby performing overall monitoring of the terminal. Processor 910 may include one or more processing units; preferably, the processor 910 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It is to be appreciated that the modem processor described above may not be integrated into processor 910.

The terminal 900 can also include a power supply 911 (e.g., a battery) for powering the various components, and preferably, the power supply 911 can be logically connected to the processor 910 via a power management system such that the functions of managing charging, discharging, and power consumption are performed via the power management system.

In addition, the terminal 900 includes some functional modules that are not shown, and are not described in detail herein.

Preferably, an embodiment of the present invention further provides a terminal, including a processor 910, a memory 909, and a computer program stored in the memory 909 and capable of running on the processor 910, where the computer program is executed by the processor 910 to implement each process of the above-mentioned method for acquiring reference time information, and can achieve the same technical effect, and in order to avoid repetition, the description is omitted here.

It should be noted that, in this embodiment, the terminal 900 may be a terminal in any implementation manner in the method embodiment of the present invention, and any implementation manner of the terminal in the method embodiment of the present invention may be implemented by the terminal 900 in this embodiment, so as to achieve the same beneficial effects, and details are not described here again.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the above processes corresponding to the first network function, the second network function, and the terminal or the base station node, and can achieve the same technical effects, and details are not repeated here to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method for determining a reference signal is applied to a terminal, and is characterized by comprising the following steps:

determining a first reference signal based on the first set of search spaces;

2. The method of claim 1, wherein the first set of search spaces comprises at least one of:

3. The method of claim 1, further comprising at least one of:

4. The method of claim 3, wherein after determining whether there is PDCCH monitoring on a first set of control resources associated with the first set of search spaces according to the first set of search spaces, the method further comprises:

under the condition that no PDCCH monitoring exists on the first control resource set, determining a channel state information reference signal (CSI-RS) or a Synchronization Signal Block (SSB) indicated by an activated transmission configuration indication state (TCI state) of a third control resource set as the first reference signal;

5. The method of claim 3, wherein the second control resource set is N control resource sets with the largest or smallest index value, where N is a positive integer, and a shortest PDCCH monitoring period of the plurality of control resource sets is the same, and wherein the plurality of control resource sets are associated with the first search space set.

6. The method of claim 3, wherein the first reference signal is a CSI-RS or SSB indicated by an active TCI state of a second set of control resources.

7. The method of claim 1, wherein after determining the first reference signal based on the first set of search spaces, further comprising:

setting the N310 counter to 0;

setting the N311 counter to 0;

if the first reference signal comprises a BFD-RS, performing at least one of:

setting a BFD counter to be 0;

the BFD timer is reset.

8. The method of claim 1, wherein the terminal operates in a first frequency band, and wherein the maximum SSB of the first frequency band is 4.

9. The method of claim 1, wherein determining the first reference signal based on the first set of search spaces comprises:

10. The method of claim 1, further comprising:

11. The method of claim 1, wherein prior to determining the first reference signal based on the first set of search spaces, further comprising:

12. A terminal, comprising:

13. The terminal of claim 12, wherein the first set of search spaces comprises at least one of:

14. The terminal of claim 12, further comprising:

a second processing module for performing at least one of:

15. The terminal of claim 14, further comprising:

a third processing module, configured to determine, when there is no PDCCH monitoring on the first control resource set, that a channel state information reference signal CSI-RS or a synchronization signal block SSB indicated by an active TCI state of a third control resource set is the first reference signal;

16. The terminal of claim 14, wherein the second control resource set is N control resource sets with a largest or smallest index value, where the shortest PDCCH monitoring period of the multiple control resource sets is the same, and N is a positive integer, where the multiple control resource sets are associated with the first search space set.

17. The terminal of claim 14, wherein the first reference signal is a CSI-RS or SSB indicated by an active TCI state of a second set of control resources.

18. The terminal of claim 12, further comprising:

a fourth processing module, configured to, if the first reference signal is changed, perform at least one of the following if the first reference signal includes an RLM-RS:

setting the N310 counter to 0;

setting the N311 counter to 0;

if the first reference signal comprises a BFD-RS, performing at least one of:

setting a BFD counter to be 0;

the BFD timer is reset.

19. The terminal of claim 12, wherein the terminal operates in a first frequency band, and wherein the maximum SSB of the first frequency band is 4.

20. The terminal according to claim 12, wherein the first processing module is specifically configured to:

21. The terminal of claim 12, further comprising:

a sending module, configured to send a capability indication to a network side, where the capability indication is used to indicate that the terminal has a capability of determining the first reference signal based on the first search space set.

22. The terminal of claim 12, further comprising:

a receiving module, configured to receive a radio resource control RRC signaling sent by a network side, where the RRC signaling is used to indicate whether the terminal performs the determining of the first reference signal based on the first search space set.

23. A terminal, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps in the method of determining a reference signal according to any one of claims 1 to 11.

24. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps in the method for determining a reference signal according to any one of claims 1 to 11.