CN114846902A - Terminal behavior determination method, device, equipment and storage medium - Google Patents
Terminal behavior determination method, device, equipment and storage medium Download PDFInfo
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Abstract
The disclosure discloses a method, a device, equipment and a storage medium for determining terminal behaviors, and belongs to the field of communication. The method comprises the following steps: determining the terminal behavior in the fuzzy time; the fuzzy time is a first time period between a first expiration time of the last uplink synchronization auxiliary information and a second effective time of the current uplink synchronization auxiliary information. The method is used for supporting the determination of the terminal behavior in the fuzzy time.
Description
Technical Field
The present disclosure relates to the field of communications, and in particular, to a method, an apparatus, a device, and a storage medium for determining a terminal behavior.
Background
Currently, the third Generation Partnership Project (3 GPP) is studying Non-Terrestrial communication Network (NTN) technology.
In the NTN system, a satellite communication mode is generally adopted to provide communication services to a User Equipment (UE). The uplink synchronization of the UE requires satellite ephemeris and common timing Advance (common TA) parameter information.
In one case, the validation time of the satellite ephemeris and common timing advance parameter Information is the start position of the downlink subframe indicated by the validation time (epochtime) contained in the System Information Block (SIB). Generally, the validation time of the current satellite ephemeris and the common timing advance parameter information does not arrive before the last satellite ephemeris and the common timing advance parameter information are invalidated, so an ambiguity period (ambiguity duration) is caused.
Disclosure of Invention
The embodiment of the disclosure provides a method, a device, equipment and a storage medium for determining terminal behaviors. The technical scheme is as follows:
according to an aspect of the embodiments of the present disclosure, there is provided a method for determining a terminal behavior, the method being performed by a terminal, the method including:
determining the terminal behavior in the fuzzy time;
the fuzzy time is a first time period between a first expiration time of the last uplink synchronization auxiliary information and a second effective time of the current uplink synchronization auxiliary information.
According to another aspect of the embodiments of the present disclosure, there is provided a communication apparatus, the apparatus including:
a processing module configured to determine terminal behavior within a fuzzy time;
the fuzzy time is a first time period between a first expiration time of the last uplink synchronization auxiliary information and a second effective time of the current uplink synchronization auxiliary information.
According to another aspect of the embodiments of the present disclosure, there is provided a terminal, including:
a processor;
a transceiver coupled to the processor;
wherein the processor is configured to load and execute executable instructions to implement the method for determining terminal behavior according to the above aspects.
According to another aspect of the embodiments of the present disclosure, there is provided a computer storage medium having at least one instruction, at least one program, a set of codes, or a set of instructions stored therein, which is loaded and executed by a processor to implement the method for determining terminal behavior according to the above aspects.
According to another aspect of an embodiment of the present disclosure, there is provided a computer program product (or a computer program) comprising computer instructions stored in a computer readable storage medium; a processor of a computer device reads the computer instructions from the computer readable storage medium, and executes the computer instructions to cause the computer device to execute the method for determining the terminal behavior according to the above aspects.
According to another aspect of the embodiments of the present disclosure, there is provided a chip, which includes an editable logic circuit and/or program instructions, and when the chip is executed, the method for determining the terminal behavior according to the above aspects is implemented.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
in an uplink synchronization scenario, when a terminal has a fuzzy time between a first expiration time of a last uplink synchronization auxiliary information and a second validation time of a current uplink synchronization auxiliary information, a terminal behavior of the terminal in the fuzzy time may be determined, which is used to support the determination of the terminal behavior in the fuzzy time.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a schematic diagram illustrating an NTN scenario based on transparent transport load in accordance with an exemplary embodiment;
FIG. 2 is a schematic diagram illustrating a regenerative load based NTN scenario in accordance with an exemplary embodiment;
FIG. 3 is a diagram illustrating a fuzzy time in accordance with an exemplary embodiment;
FIG. 4 is a flow chart illustrating a method of determination of terminal behavior in accordance with an exemplary embodiment;
fig. 5 is a flowchart illustrating a method of determining terminal behavior according to another exemplary embodiment;
FIG. 6 is a schematic diagram illustrating a fuzzy time in accordance with another exemplary embodiment;
fig. 7 is a flow chart illustrating a random access method according to an example embodiment;
FIG. 8 is a block diagram illustrating a communication device in accordance with an example embodiment;
fig. 9 is a schematic diagram illustrating a structure of a terminal according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Currently, 3GPP is studying NTN technology. In the NTN system, a communication service is provided to the ground UE by using satellite communication. Satellite communications have many unique advantages over terrestrial cellular communications. Firstly, satellite communication is not limited by user regions; for example, general terrestrial communication cannot cover an area where communication equipment cannot be installed, such as the sea, mountain, desert, or the like, or an area where communication coverage is not performed due to sparse population, while for satellite communication, since one satellite can cover a large ground and the satellite can orbit around the earth, theoretically every corner on the earth can be covered by satellite communication. Second, satellite communication has great social value. Satellite communication can be covered in remote mountainous areas, poor and laggard countries or areas with lower cost, so that people in the areas can enjoy advanced voice communication and mobile internet technology, the digital gap between the satellite communication and developed areas is favorably reduced, and the development of the areas is promoted. And thirdly, the satellite communication distance is far, and the communication cost is not obviously increased when the communication distance is increased. And finally, the satellite communication has high stability and is not limited by natural disasters.
Communication satellites are classified into Low-Earth Orbit (LEO) satellites, Medium-Earth Orbit (MEO) satellites, geosynchronous Orbit (GEO) satellites, High-elliptic Orbit (HEO) satellites, and the like according to the difference in orbital height. The main studies at the present stage are LEO and GEO.
LEO
The low orbit satellite has a height ranging from 500 kilometers (km) to 1500km, with a corresponding orbital period of about 1.5 hours to 2 hours. The signal propagation delay for inter-UE single-hop communications is typically less than 20 milliseconds (ms). Maximum satellite visibility time 20 minutes. The signal propagation distance is short, the link loss is less, and the requirement on the transmission power of the UE is not high.
GEO
A geosynchronous orbit satellite, with an orbital altitude of 35786km, has a period of 24 hours of rotation around the earth. The signal propagation delay for inter-UE single-hop communications is typically 250 ms.
In order to ensure the coverage of the communication satellite and improve the system capacity of the whole satellite communication system, the communication satellite adopts multiple beams to cover the ground, and one communication satellite can form dozens of or even hundreds of beams to cover the ground; one satellite beam may cover a ground area several tens to hundreds of kilometers in diameter.
Currently, there are at least two NTN scenarios: NTN scenarios based on transparent load (payload) and NTN scenarios based on regenerative load. Fig. 1 shows a schematic diagram of an NTN scenario based on transparent transmission load, and fig. 2 shows a schematic diagram of an NTN scenario based on regenerative load.
The NTN network consists of the following network elements:
1 or more network devices 16: for connecting the satellite 14 to a data network 18 on the ground;
feeder Link (Feeder Link): a link for communication between the network device 16 and the satellite 14;
service Link (Service Link): a link for communication between the UE 12 and the satellite 14;
the satellite 14: the functions provided by the device can be divided into two types of transparent load and regenerative load.
Transparent load transfer: only the functions of radio frequency filtering, frequency conversion and amplification are provided. Only transparent retransmission of the signal is provided, and the waveform signal retransmitted by the signal is not changed.
Regenerative load: in addition to providing radio frequency filtering, frequency conversion and amplification, demodulation/decoding, routing/conversion, encoding/modulation functions may also be provided. Which has some or all of the functionality of a base station.
ISL (Inter-Satellite Links): present in the NTN scenario of the regenerative load.
In an NTN system, uplink synchronization of UEs requires satellite ephemeris and common timing advance parameter information. The satellite ephemeris is used for compensating the time delay of the Service Link; the common TA parameter information is used for compensating the time delay of the Feeder Link.
The satellite ephemeris and common TA parameter information are sent in NTN-SIB, and the effective time of the information has two indication modes:
mode 1: the explicit indication is that the effective time of the satellite ephemeris and common TA parameter information is the starting position of the downlink subframe indicated by the epochtime contained in the NTN-SIB. Wherein the indicated epoch is the System Frame Number (SFN) + subframe Number (subframe).
Mode 2: implicit indication, the time of validity of the satellite ephemeris and common TA parameter information is the termination of the System information window (SIwindow) in which the NTN-SIB resides.
Since the satellite ephemeris and common TA parameter information are both time-varying, they are valid only for a certain time, and their valid time period is also notified in NTN-SIB. If the epoch time of the satellite ephemeris and common TA parameter information is indicated by adopting a display indication mode, in such a case, the UE reads the NTN-SIB containing the uplink synchronization assistance information at a first receiving time T11, acquires a first effective time T12 and a first effective time length of the last satellite ephemeris and common TA parameter information, and can calculate a first ineffective time T13; reading the new NTN-SIB at a second receiving time T21 before the first expiration time T13, obtaining a second validation time T22 of the new satellite ephemeris and common TA parameter information, where the second validation time T22 exceeds the first expiration time T13, which results in an ambiguity time T1, as shown in fig. 3. During the above-mentioned ambiguity time, the UE behavior is not yet defined.
Fig. 4 is a flowchart illustrating a method for determining a terminal behavior according to an exemplary embodiment of the present disclosure, where the method is applied to an NTN scenario and executed by a UE, and the method includes:
in step 201, the terminal behavior in the fuzzy time is determined.
And the terminal determines the terminal behavior in the fuzzy time under the condition that the fuzzy time exists. The fuzzy time is a first time period between a first expiration time of the last uplink synchronization auxiliary information and a second effective time of the current uplink synchronization auxiliary information. Illustratively, the first time period includes a part or all of an interval time between a first expiration time of the last uplink synchronization assistance information and a second expiration time of the current uplink synchronization assistance information.
The uplink synchronization auxiliary information is used for uplink synchronization. Uplink synchronization refers to that in the same cell, uplink signals transmitted by terminals at different positions in the same time slot arrive at the receiving antenna of the network device at the same time, that is, signals of different terminals in the same time slot keep synchronous when reaching the receiving antenna of the network device. In an uplink synchronization scene, the terminal determines the terminal behavior within the fuzzy time under the condition that the fuzzy time exists between the first expiration time of the last uplink synchronization auxiliary information and the second effective time of the current uplink synchronization auxiliary information. Illustratively, the uplink synchronization assistance information is carried in a system information block.
Illustratively, the fuzzy time is a total interval time between a first expiration time of the last uplink synchronization auxiliary information and a second expiration time of the current uplink synchronization auxiliary information, and the terminal determines the terminal behavior in the total interval time. Or, the fuzzy time is a partial interval time between a first expiration time of the last uplink synchronization auxiliary information and a second expiration time of the current uplink synchronization auxiliary information, and the terminal determines the terminal behavior in the partial interval time.
Optionally, the terminal behavior (UE behavior) comprises at least one of:
notify a Radio Resource Control (RRC) layer to release the RRC connection, and the terminal enters an RRC idle state or an RRC dormant state.
In the case that the terminal is in the RRC connected state (i.e., RRC _ connected state), the terminal determines that the terminal behavior in the fuzzy time is to notify the RRC layer to release the RRC connection, and switch from the RRC connected state to the RRC idle state (i.e., RRC _ idle state) or the RRC dormant state (i.e., RRC _ inactive state).
Flush Hybrid Automatic Repeat reQuest (HARQ) buffer.
The terminal determines that the terminal behavior in the ambiguity time is to clear the HARQ buffer.
When a Physical Uplink Control CHannel (PUCCH) is configured, the RRC layer is notified to release the PUCCH.
And the terminal determines that the terminal behavior in the fuzzy time is to inform the RRC layer to release the PUCCH under the condition that the PUCCH is configured.
When a Sounding Reference Signal (SRS) is configured, the RRC layer is notified of the release of the SRS.
And the terminal determines that the terminal behavior in the fuzzy time is to inform the RRC layer to release the SRS under the condition that the SRS is configured.
Clearing the preconfigured downlink transmission.
And under the condition that the terminal is pre-configured with downlink transmission, determining that the terminal behavior in the fuzzy time is to clear the pre-configured downlink transmission.
Illustratively, the downlink transmission includes transmission on a physical downlink shared channel and/or a physical downlink control channel.
Clearing the preconfigured uplink transmission.
And under the condition that the terminal is pre-configured with uplink transmission, determining that the terminal behavior in the fuzzy time is to clear the pre-configured uplink transmission.
Illustratively, the uplink transmission includes transmission on a physical uplink shared channel and/or a physical uplink control channel.
Clearing Physical Uplink Shared Channel (PUSCH) resources for semi-static Channel State Information (CSI) reporting.
The terminal determines that the terminal behavior in the fuzzy time is to clear PUSCH resources for semi-static CSI reporting. The semi-static state refers to periodic reporting of the CSI.
N of maintenance Timing Advance Group (TAG) TA ，N TA It is the network equipment that indicates the timing advance between the downlink and uplink of the terminal.
Wherein, TAG refers to a group of carriers corresponding to a timing advance. Maintaining N of TAGs TA I.e. reserving N for a set of carriers TA . N for terminal to determine that terminal behavior in fuzzy time is maintaining TAG TA 。
Determine that the time Alignment Timers (time Alignment Timers) have timed out.
The terminal determining the terminal's behavior within the ambiguity time is determining that the time alignment timer has expired. The time alignment timer is a timer for monitoring uplink time synchronization.
Optionally, the second effective time of the current uplink synchronization auxiliary information refers to a starting position of the downlink subframe indicated by the second effective time.
In summary, in the method for determining a terminal behavior provided in this embodiment, in an uplink synchronization scenario, when a fuzzy time exists between a first expiration time of a last uplink synchronization auxiliary information and a second effective time of a current uplink synchronization auxiliary information, a terminal behavior in the fuzzy time may be determined, so as to support determination of the terminal behavior in the fuzzy time.
For example, after acquiring the system information block, the terminal first determines whether there is an ambiguity time, and therefore step 201 may include step 301, as shown in fig. 5, the following steps:
and step 301, determining the terminal behavior in the fuzzy time under the condition that the second effective time meets the existence condition of the fuzzy time.
And the terminal determines that the second effective time of the current uplink synchronization auxiliary information meets the existence condition of the fuzzy time, and then determines the terminal behavior in the fuzzy time.
Optionally, the existence condition of the fuzzy time includes at least one of the following conditions:
the second validation time is later than the first expiration time.
That is, the second effective time of the current uplink synchronization auxiliary information is later than the first ineffective time of the last uplink synchronization auxiliary information.
The first time is later than the first expiration time, and the first time is a time obtained by subtracting the valid time period of the current uplink synchronization auxiliary information from the second expiration time.
That is, the first time is the time obtained by subtracting the effective time period of the current uplink synchronization auxiliary information from the second effective time of the current uplink synchronization auxiliary information.
For example, if the terminal determines that the second effective time of the current uplink synchronization auxiliary information is later than the first ineffective time of the last uplink synchronization auxiliary information, the terminal determines the terminal behavior within the fuzzy time.
Or the terminal determines that the first time is later than the first failure time of the last uplink synchronization auxiliary information, and then determines the terminal behavior in the fuzzy time.
Optionally, in a case that the second effective time of the current uplink synchronization auxiliary information is later than the first ineffective time of the previous uplink synchronization auxiliary information, the first time period is an interval time between the first ineffective time of the previous uplink synchronization auxiliary information and the second effective time of the current uplink synchronization auxiliary information. Illustratively, as shown in fig. 3, the total interval time between the first expiration time T13 of the last uplink synchronization auxiliary information and the second effectiveness time T22 of the current uplink synchronization auxiliary information is the fuzzy time T1.
Optionally, in a case that the first time is later than the first expiration time of the last uplink synchronization auxiliary information, the first time period is an interval time between the first expiration time of the last uplink synchronization auxiliary information and the second effective time of the current uplink synchronization auxiliary information, as shown in fig. 3.
Alternatively, in the case that the first time is later than the first expiration time of the previous uplink synchronization auxiliary information, the first time period is an interval time between the first expiration time of the previous uplink synchronization auxiliary information and the first time, that is, the ambiguity time is a partial interval time between the first expiration time of the previous uplink synchronization auxiliary information and the second validity time of the current uplink synchronization auxiliary information, as shown in fig. 6, the first time T23 is a time obtained by subtracting the valid time period T24 of the current uplink synchronization auxiliary information from the second validity time T22 of the current uplink synchronization auxiliary information, and the interval time between the first expiration time T13 and the first time T23 of the previous uplink synchronization auxiliary information is the ambiguity time T2.
In some embodiments, after the terminal determines the terminal behavior within the fuzzy time, the determined terminal behavior is executed within the fuzzy time; further, a preamble signal is sent at a Random Access time (Random Access, rach) after the second validation time of the current uplink synchronization auxiliary information, and a Random Access process is initiated. Optionally, the terminal determines a first Timing Advance (TA) at the random access time using the current uplink synchronization assistance information in the system message block, and sends a preamble signal based on the first TA, thereby initiating the random access procedure.
Illustratively, the system Information Block includes a Master Information Block (MIB) and an SIB. The terminal determines a first timing advance by using the current uplink synchronization auxiliary information in the NTN-SIB at the random access time, and sends a preamble signal based on the first timing advance, thereby initiating a random access process. The NTN-SIB may be SIBx, where x is any one of {1,2,3,4,5,6,7,8,9,10,11, … }.
In summary, in the method for determining a terminal behavior provided in this embodiment, when the second effective time of the current uplink synchronization auxiliary information meets the existence condition of the ambiguity time, the terminal behavior in the ambiguity time is determined, and the ambiguity time and the existence condition of the ambiguity time are defined.
Fig. 7 is a flowchart illustrating a random access method provided in an exemplary embodiment of the present disclosure, which is applied in an NTN scenario and is performed by a UE, and the method includes:
And the terminal determines the terminal behavior in the fuzzy time under the condition that the second effective time of the current uplink synchronization auxiliary information in the NTN-SIB is later than the first ineffective time of the last uplink synchronization auxiliary information.
Or the terminal determines the terminal behavior in the fuzzy time under the condition that the first time is later than the first failure time of the last uplink synchronous auxiliary information; the first time is the time obtained by subtracting the effective time period of the current uplink synchronization auxiliary information from the second effective time of the current uplink synchronization auxiliary information in the NTN-SIB.
Illustratively, the terminal further determines the ambiguity time in case that the second effective time of the current uplink synchronization assistance information in the NTN-SIB satisfies the existence condition of the ambiguity time.
Optionally, the terminal determines the fuzzy time according to a second effective time of the current uplink synchronization auxiliary information; or, the terminal determines the fuzzy time according to the second effective time of the current uplink synchronization auxiliary information and the first ineffective time of the last uplink synchronization auxiliary information; or, the terminal determines the fuzzy time according to the second effective time of the current uplink synchronization auxiliary information, the effective time period of the current uplink synchronization auxiliary information, and the first ineffective time of the last uplink synchronization auxiliary information.
For example, the terminal determines an interval between a first expiration time of the last uplink synchronization assistance information and a second validation time of the current uplink synchronization assistance information in the NTN-SIB as the ambiguity time. For another example, the terminal subtracts the effective time period of the current uplink synchronization auxiliary information from the second effective time of the current uplink synchronization auxiliary information in the NTN-SIB to obtain a first time; and determining the interval time between the first failure time and the first time of the last uplink synchronization auxiliary information as the fuzzy time.
It should be noted that, in the embodiment of the present disclosure, the execution sequence of the determination of the fuzzy time and the determination of the terminal behavior is not limited. For example, both may be performed simultaneously: and the terminal determines the fuzzy time and determines the terminal behavior in the fuzzy time under the condition that the second effective time of the current uplink synchronization auxiliary information in the NTN-SIB meets the existence condition of the fuzzy time. Or, in the case that the second effective time of the current uplink synchronization auxiliary information in the NTN-SIB satisfies the existence condition of the ambiguity time, the terminal determines the ambiguity time first, and then determines the terminal behavior within the ambiguity time.
Optionally, the terminal behavior comprises at least one of:
·Notify RRC layer to release the RRC-connection and fall back to RRC-idle/RRC-inactive.
that is, the RRC layer is notified to release the RRC connection, and the terminal enters an RRC idle state or an RRC dormant state.
·Flush all HARQ buffers.
I.e. emptying the HARQ buffer.
·Notify RRC to release PUCCH,if configured.
That is, in the case where the PUCCH is configured, the RRC layer is notified to release the PUCCH.
·Notify RRC to release SRS,if configured.
That is, in the case where the SRS is configured, the RRC layer is notified to release the SRS.
·Clear any configured downlink assignments.
I.e. clearing the preconfigured downlink transmission.
·Clear any configured uplink grants.
That is, the preconfigured uplink transmissions are cleared.
·Clear any PUSCH resource for semi-persistent CSI reporting.
That is, the PUSCH resources for semi-static CSI reporting are cleared.
·Maintain N TA of this TAG.
That is, maintaining N of TAG TA 。
·Consider the running timeAlignmentTimers as expired.
That is, it is determined that the time alignment timer has timed out.
The terminal determines a first timing advance by using the current uplink synchronous auxiliary information at the random access time, and sends a preamble signal based on the first timing advance to initiate a random access process.
In summary, in the method for determining a terminal behavior provided in this embodiment, in an uplink synchronization scenario, a terminal may determine a terminal behavior in a fuzzy time when a second effective time of current uplink synchronization auxiliary information in a system information block meets an existence condition of the fuzzy time, so as to support determination of the terminal behavior in the fuzzy time.
Fig. 8 shows a block diagram of a communication apparatus provided in an exemplary embodiment of the present disclosure, which may be implemented as a part of or all of a terminal by software, hardware, or a combination of the two, and the apparatus includes:
a processing module 501 configured to determine terminal behavior within a fuzzy time; the fuzzy time is a first time period between a first expiration time of the last uplink synchronization auxiliary information and a second effective time of the current uplink synchronization auxiliary information.
In some embodiments, the processing module 501 is configured to determine the terminal behavior within the fuzzy time if the second validation time satisfies the existence condition of the fuzzy time.
In some embodiments, the time-of-ambiguity presence condition comprises at least one of:
the second validation time is later than the first expiration time;
and the first time is later than the first failure time, and the first time is the time obtained by subtracting the effective time period of the current uplink synchronization auxiliary information from the second effective time.
In some embodiments, in the case where the second validation time is later than the first expiration time, the first time period is an interval time between the first expiration time and the second validation time.
In some embodiments, where the first time is later than the first expiration time,
the first time period is an interval time between the first expiration time and the second validation time; alternatively, the first time period is an interval time between the first expiration time and the first time.
In some embodiments, the processing module 501 is configured to determine the fuzzy time according to the second validation time before determining the terminal behavior within the fuzzy time; or determining the fuzzy time according to the second effective time and the first ineffective time; or, determining the fuzzy time according to the second effective time, the effective time period of the current uplink synchronization auxiliary information, and the first ineffective time.
In some embodiments, the terminal behavior comprises at least one of:
informing an RRC layer to release RRC connection, and enabling the terminal to enter an RRC idle state or an RRC dormant state;
clearing the HARQ buffer;
notifying the RRC layer to release the PUCCH if the PUCCH is configured;
notifying the RRC layer to release the SRS if the SRS is configured;
clearing the preconfigured downlink transmission;
clearing the pre-configured uplink transmission;
emptying PUSCH resources for reporting the semi-static CSI;
maintaining N of TAGs TA The NTA is a timing advance that a network device indicates between a downlink and an uplink of the terminal;
determining that the time alignment timer has expired.
In some embodiments, the apparatus further comprises:
a sending module 502, configured to send a preamble signal at the random access occasion after the second effective time, and initiate a random access procedure.
In some embodiments, the sending module 502 is configured to determine a first timing advance using the current uplink synchronization assistance information in a system message block at the random access occasion, and send the preamble signal based on the first timing advance.
In some embodiments, the second effective time is a starting position of a downlink subframe indicated by the second effective time.
In summary, in the communication apparatus provided in this embodiment, in an uplink synchronization scenario, when there is a fuzzy time between a first expiration time of a previous uplink synchronization assistance information and a second validation time of a current uplink synchronization assistance information, the apparatus may determine a terminal behavior within the fuzzy time, and is used to support the determination of the terminal behavior within the fuzzy time.
Fig. 9 shows a schematic structural diagram of a UE according to an exemplary embodiment of the present disclosure, where the UE includes: a processor 111, a receiver 112, a transmitter 113, a memory 114, and a bus 115.
The processor 111 includes one or more processing cores, and the processor 111 executes various functional applications and information processing by executing software programs and modules.
The receiver 112 and the transmitter 113 may be implemented as one communication component, which may be a communication chip.
The memory 114 is connected to the processor 111 via a bus 115.
The memory 114 may be used to store at least one instruction for execution by the processor 111 to implement the various steps in the above-described method embodiments.
Further, the memory 114 may be implemented by any type or combination of volatile or non-volatile storage devices, including, but not limited to: magnetic or optical disk, Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Static Random-Access Memory (SRAM), Read-Only Memory (ROM), magnetic Memory, flash Memory, Programmable Read-Only Memory (PROM).
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as a memory comprising instructions, executable by a processor of a UE to perform the above-described method of determining a behavior of a terminal is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random-Access Memory (RAM), a Compact Disc Read Only Memory (CD-ROM), a magnetic tape, a floppy disk, an optical data storage device, and the like.
A non-transitory computer readable storage medium, wherein instructions, when executed by a processor of a UE, enable the UE to perform the above-described method of determining terminal behavior.
An exemplary embodiment of the present disclosure also provides a terminal, including: a processor; a transceiver coupled to the processor; wherein the processor is configured to load and execute the executable instructions to implement the method for determining the terminal behavior provided by the above-mentioned method embodiments.
An exemplary embodiment of the present disclosure further provides a computer-readable storage medium, in which at least one instruction, at least one program, a code set, or a set of instructions is stored, and the at least one instruction, the at least one program, the code set, or the set of instructions is loaded and executed by the processor to implement the method for determining the terminal behavior provided by the above-mentioned method embodiments.
It should be understood that reference to "a plurality" herein means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (13)
1. A method for determining terminal behavior, the method being performed by a terminal, the method comprising:
determining the terminal behavior in the fuzzy time;
the fuzzy time is a first time period between a first expiration time of the last uplink synchronization auxiliary information and a second effectiveness time of the current uplink synchronization auxiliary information.
2. The method of claim 1, wherein determining the behavior of the terminal within the ambiguity time comprises:
determining the terminal behavior within the fuzzy time under the condition that the second effective time meets the existence condition of the fuzzy time.
3. The method of claim 2, wherein the ambiguity time existence condition comprises at least one of:
the second validation time is later than the first expiration time;
and the first time is later than the first failure time, and the first time is the time obtained by subtracting the effective time period of the current uplink synchronization auxiliary information from the second effective time.
4. The method according to claim 3, characterized in that, in the case where the second validation time is later than the first invalidation time,
the first time period is an interval time between the first expiration time and the second validation time.
5. The method of claim 3, wherein, in the event that the first time is later than the first failure time,
the first time period is an interval time between the first expiration time and the second validation time; or,
the first time period is an interval time between the first expiration time and the first time.
6. The method of claim 2, wherein the determining the terminal behavior within the ambiguity time is preceded by:
determining the fuzzy time according to the second effective time; or,
determining the fuzzy time according to the second effective time and the first ineffective time; or,
and determining the fuzzy time according to the second effective time, the effective time period of the current uplink synchronization auxiliary information and the first ineffective time.
7. The method according to any of claims 1 to 6, wherein the terminal behavior comprises at least one of:
informing a Radio Resource Control (RRC) layer to release RRC connection, and enabling the terminal to enter an RRC idle state or an RRC dormant state;
emptying a hybrid automatic repeat request (HARQ) cache;
under the condition that a Physical Uplink Control Channel (PUCCH) is configured, informing the RRC layer to release the PUCCH;
notifying the RRC layer to release a Sounding Reference Signal (SRS) when the SRS is configured;
clearing the preconfigured downlink transmission;
clearing the pre-configured uplink transmission;
emptying Physical Uplink Shared Channel (PUSCH) resources for reporting semi-static Channel State Information (CSI);
n to maintain timing advance group TAG TA Said N is TA Is the network equipment indicating a timing advance between the downlink and uplink of the terminal;
determining that the time alignment timer has expired.
8. The method of any of claims 1 to 6, further comprising:
and sending a preamble signal at the random access opportunity after the second effective time, and initiating a random access process.
9. The method of claim 8, wherein the transmitting the preamble signal at the random access occasion after the second effective time comprises:
and determining a first timing advance by using the current uplink synchronization auxiliary information in a system message block at the random access time, and sending the preamble signal based on the first timing advance.
10. The method according to any of claims 1 to 6, wherein the second effective time is a starting position of a downlink subframe indicated by the second effective time.
11. A communications apparatus, the apparatus comprising:
a processing module configured to determine terminal behavior within a fuzzy time;
the fuzzy time is a first time period between a first expiration time of the last uplink synchronization auxiliary information and a second effective time of the current uplink synchronization auxiliary information.
12. A terminal, characterized in that the terminal comprises:
a processor;
a transceiver coupled to the processor;
wherein the processor is configured to load and execute executable instructions to implement the method of determining the behaviour of a terminal as claimed in any one of claims 1 to 10.
13. A computer-readable storage medium, having stored therein at least one instruction, at least one program, a set of codes, or a set of instructions, which is loaded and executed by a processor to implement the method of determining the behaviour of a terminal as claimed in any one of claims 1 to 10.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2022/084224 WO2023184286A1 (en) | 2022-03-30 | 2022-03-30 | Terminal behavior determination method and apparatus, and device and storage medium |
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| CN114846902A true CN114846902A (en) | 2022-08-02 |
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| CN202280001072.0A Pending CN114846902A (en) | 2022-03-30 | 2022-03-30 | Terminal behavior determination method, device, equipment and storage medium |
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| WO2021219018A1 (en) * | 2020-04-28 | 2021-11-04 | Mediatek Singapore Pte. Ltd. | System information design for synchronization in non-terrestrial network communications |
| WO2023004652A1 (en) * | 2021-07-28 | 2023-02-02 | 北京小米移动软件有限公司 | Energy-saving configuration method and apparatus |
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