CN115696548A

CN115696548A - Information processing method, device, equipment and storage medium

Info

Publication number: CN115696548A
Application number: CN202110862761.8A
Authority: CN
Inventors: 柯颋; 杨拓; 翁玮文; 柴丽; 王飞; 胡南
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2023-02-03

Abstract

The invention discloses an information processing method, an information processing device, information processing equipment and a storage medium. Wherein the method comprises the following steps: receiving first indication information sent by network equipment at a first moment; determining, based on the first indication information, a propagation delay of a downlink signal sent by the network device at a second time and/or a receiving time at which the terminal receives the downlink signal; the second time is after the first time; wherein the second time is related to a start time of a next Discontinuous Reception (DRX) cycle; alternatively, the second time is associated with a next Paging Occasion (PO).

Description

Information processing method, device, equipment and storage medium

Technical Field

The present invention relates to the field of wireless technologies, and in particular, to an information processing method, apparatus, device, and storage medium.

Background

Discontinuous Reception (DRX) technology is widely used in mobile communication systems such as Long Term Evolution (LTE) and New Radio (NR) systems. For a User Equipment (UE) in a connected state, the UE may need to perform a wake-up operation in advance, receive a synchronization signal and/or a system message to obtain downlink time-frequency synchronization before an on-duration of a DRX cycle. For a UE in an idle state or an inactive state, before listening to Paging in one Paging Opportunity (PO) in each DRX cycle, the UE may need to perform a wake-up operation in advance, receive a synchronization signal and/or a system message to obtain downlink time-frequency synchronization.

In the ground network, because the base station does not move and the terminal movement speed is limited, the propagation delay from the UE to the base station is basically kept unchanged in the two adjacent DRX on windows. Therefore, the UE can accurately determine when to wake up so as to ensure that proper time is available for downlink time-frequency synchronization operation.

However, in a Non-Terrestrial Network (NTN), the propagation delay from the UE to the base station may be significantly different due to the satellite moving too fast and thus within two adjacent DRX on windows. If the UE cannot know the UE-to-base station propagation delay for the next DRX window, it is difficult for the UE to determine when it should wake up. Considering that if the UE wakes up late, missing detection of the paging message may be caused; therefore, to avoid missing the paging message, the UE may need to perform the wake-up operation in advance, thereby resulting in increased power consumption.

Disclosure of Invention

In view of this, embodiments of the present invention are intended to provide an information processing method, apparatus, device and storage medium.

The technical scheme of the embodiment of the invention is realized as follows:

at least one embodiment of the present invention provides an information processing method, including:

receiving first indication information sent by network equipment at a first time;

determining, based on the first indication information, a propagation delay of a downlink signal sent by the network device at a second time and/or a receiving time at which the terminal receives the downlink signal; the second time is after the first time;

wherein the second time is related to the starting time of the next DRX period; alternatively, the second time instant is associated with the next PO.

Further in accordance with at least one embodiment of the present invention, the first indication information includes first network indication information associated with a second time instant;

alternatively, the first and second electrodes may be,

the first indication information comprises a difference value between first network indication information related to a second time and first network indication information related to a third time; the third time is before the second time; or, the third time is earlier than or equal to the first time;

wherein the first network indication information comprises at least one of:

universal Time Advance (TA, time Advance);

general time delay;

a general delay drift rate;

second derivative of the universal delay drift;

third derivative of the universal delay drift;

a first parameter; the first parameter is related to a time delay between the network device and a reference point;

a time delay of the first link; the first link is a propagation link between the network device and a satellite;

the TA associated with the first link.

Further, in accordance with at least one embodiment of the present invention, the method further comprises:

if the first indication information comprises first network indication information related to a second moment, determining the first network indication information related to the second moment;

alternatively, the first and second liquid crystal display panels may be,

and if the first indication information comprises a difference value between the first network indication information related to the second moment and the first network indication information related to the third moment, determining the first network indication information related to the second moment according to the difference value and the first network indication information related to the third moment.

Furthermore, according to at least one embodiment of the present invention, the determining, based on the first indication information, a propagation delay of a downlink signal sent by the network device at the second time and/or a receiving time at which the terminal receives the downlink signal includes:

determining the propagation delay of the first link according to the first network indication information which is determined by the first indication information and is related to the second moment;

determining a satellite position and a terminal position associated with a second time instant; determining the propagation delay between the satellite and the terminal according to the determined satellite position and the terminal position;

and determining the propagation delay of the downlink signal sent by the network equipment at the second moment and/or the receiving moment of the downlink signal received by the terminal according to the propagation delay of the first link and the propagation delay between the satellite and the terminal.

Furthermore, according to at least one embodiment of the present invention, the propagation delay of the downlink signal transmitted by the network device at the second time is calculated according to the following formula:

T1＝T2+T3；

wherein, T1 represents a propagation delay of a downlink signal transmitted by the network device at a second time; t2 represents the first link latency; t3 represents the propagation delay between the satellite and the terminal.

Further, according to at least one embodiment of the present invention, a receiving time at which the terminal receives the downlink signal is calculated according to the following formula;

T4＝T5+T1；

wherein, T4 represents a receiving time at which the terminal receives the downlink signal; t5 represents the second time; t1 represents a propagation delay of the downlink signal transmitted by the network device at the second time.

Further, in accordance with at least one embodiment of the present invention, the first indication information further includes at least one of the following information:

a satellite position associated with the second time;

a paging (paging) configuration in a first cell;

a second cell Identity (ID);

a paging configuration in a second cell;

the time offset associated with the second time PO.

Further, in accordance with at least one embodiment of the present invention, the terminal expects the paging configuration in the first cell to be the same as the paging configuration in the second cell; the first cell corresponds to the first time, and the second cell corresponds to the second time.

At least one embodiment of the present invention provides an information processing method applied to a network device, the method including:

sending first indication information to a terminal at a first moment;

the first indication information is used for the terminal to determine a propagation delay of a downlink signal sent by the network device at a second moment and/or a receiving moment at which the terminal receives the downlink signal; the second time is after the first time; the second time is related to the starting time of the next DRX period; alternatively, the second time instant is associated with the next PO.

In addition, in accordance with at least one embodiment of the present invention,

the first indication information comprises first network indication information related to a second moment;

alternatively, the first and second electrodes may be,

wherein the first network indication information comprises at least one of:

general purpose TA;

general time delay;

a general delay drift rate;

a second derivative of the general delay drift;

third derivative of the universal delay drift;

the TA associated with the first link.

Further, according to at least one embodiment of the present invention, the first indication information further includes at least one of:

a satellite position associated with the second time;

a paging configuration in a first cell;

a second cell identity, ID;

a paging configuration in a second cell;

the time offset associated with the second time PO.

At least one embodiment of the present invention provides an information processing apparatus including:

the receiving unit is used for receiving first indication information sent by the network equipment at a first moment;

a processing unit, configured to determine, based on the first indication information, a propagation delay of a downlink signal sent by the network device at a second time and/or a receiving time at which the terminal receives the downlink signal; the second time is after the first time;

wherein the second time is related to the starting time of the next DRX period; alternatively, the second time is associated with the next PO.

the terminal comprises a sending unit, a receiving unit and a sending unit, wherein the sending unit is used for sending first indication information to the terminal at a first moment;

the first indication information is used for the terminal to determine a propagation delay of a downlink signal sent by the network device at a second moment and/or a receiving moment at which the terminal receives the downlink signal; the second time is after the first time; the second time is related to the starting time of the next DRX period; alternatively, the second time is associated with the next PO.

At least one embodiment of the present invention provides a terminal, including:

the first communication interface is used for receiving first indication information sent by the network equipment at a first moment;

a first processor, configured to determine, based on the first indication information, a propagation delay of a downlink signal sent by the network device at a second time and/or a receiving time at which the terminal receives the downlink signal; the second time is after the first time;

At least one embodiment of the present invention provides a network device, including:

a second processor for performing a second processing of the received signal,

the second communication interface is used for sending first indication information to the terminal at a first moment;

At least one embodiment of the invention provides a terminal comprising a processor and a memory for storing a computer program capable of running on the processor,

wherein the processor is configured to execute the steps of the method at the terminal side when running the computer program.

At least one embodiment of the invention provides a network device comprising a processor and a memory storing a computer program capable of running on the processor,

wherein the processor is configured to execute the steps of the method at the network device side when running the computer program.

At least one embodiment of the invention provides a computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of any of the methods described above.

According to the information processing method, the information processing device, the information processing equipment and the storage medium provided by the embodiment of the invention, the terminal receives first indication information sent by network equipment at a first moment; determining, based on the first indication information, a propagation delay of a downlink signal sent by the network device at a second time and/or a receiving time at which the terminal receives the downlink signal; the second time is after the first time; wherein the second time is related to the starting time of the next DRX period; alternatively, the second time instant is associated with the next PO. By adopting the technical scheme provided by the embodiment of the invention, the terminal can determine the propagation delay of the downlink signal sent by the network equipment at the second moment and/or the receiving moment of the downlink signal received by the terminal according to the first indication information sent by the network equipment at the first moment, so that the terminal can accurately know when the downlink signal sent by the network equipment reaches the terminal in the next DRX period, further more accurately determine the time for executing the waking operation, and avoid the problems of power consumption increase caused by early waking of downlink time-frequency synchronization and missing detection of paging messages.

Drawings

Fig. 1 is a diagram illustrating a network configuring a DRX cycle for a UE in the related art;

FIG. 2 is a schematic diagram of a preparation period in the related art;

fig. 3 is a schematic diagram illustrating a significant change in propagation delay between a base station and a terminal in a Non Terrestrial Network (NTN) Network in the related art;

FIG. 4a is a schematic diagram of low orbit (LEO) satellite to UE propagation delay and Doppler shift over time when the UE is stationary;

FIG. 4b is a diagram illustrating the difference between the propagation delay and the Doppler frequency domain corresponding to two time instants t1 and t 2;

FIG. 5 is a schematic diagram of a configuration inconsistency of Paging parameters transmitted by different satellites;

FIG. 6 is a schematic diagram of the Paging parameter configuration for all satellite transmissions remaining consistent;

FIG. 7 is a flowchart illustrating a first information processing method according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of an architecture of an NTN network according to an embodiment of the present invention;

FIG. 9 is a first flowchart illustrating a specific implementation of an information processing method according to an embodiment of the present invention;

FIG. 10 is a schematic diagram of a first link according to an embodiment of the present invention;

FIG. 11 is a flowchart illustrating a second specific implementation of the information processing method according to the embodiment of the present invention;

FIG. 12 is a flowchart illustrating an implementation of a second information processing method according to an embodiment of the present invention;

FIG. 13 is a block diagram of an information processing apparatus according to an embodiment of the present invention;

FIG. 14 is a schematic diagram of the constitution of an information processing apparatus according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 16 is a schematic structural diagram of a network device according to an embodiment of the present invention.

Detailed Description

Before the technical solution of the embodiment of the present invention is introduced, a description is given of a related art.

Fig. 1 is a diagram illustrating a network configuring a DRX cycle for a UE in the related art, and as shown in fig. 1, the network configures a DRX cycle (DRX cycle) and an On-duration for the UE. Wherein, the repetition period of the On-duration is DRX cycle.

When the UE is in a connected state, the UE operates in an active-time (active-time) within the DRX cycle, such as listening to a Physical Downlink Control Channel (PDCCH), and sleeps (sleep) in other times, so as to save energy consumption of the terminal. Wherein the On-duration and the period of time after the On-duration and during which the inactivity timer has not expired or timed out are the active-time (active-time) of the UE. Specifically, after the UE wakes up (wake up), it waits for receiving PDCCH in On-duration, and if the UE successfully decodes one PDCCH, the UE will stay in an awake (awake) state and start an inactivity timer. The UE restarts the inactivity timer whenever a PDCCH is successfully decoded; when the inactivity timer expires (failing) or times out (timeout), the UE goes back to sleep (sleep) state.

Fig. 2 is a schematic diagram of a preparation period in the related art, and as shown in fig. 2, for a UE in a connected state, before DRX on, the UE may need to perform a wake up operation in advance, receive a Synchronization Signal Block (SSB) Signal to obtain Downlink (DL) time-frequency Synchronization. The time interval during which the UE makes DL time-frequency synchronization before wake up is called preparation period (preparation period). In the related art, the preparation period behavior is not defined, and the implementation of the method completely depends on the UE.

In an NTN network, satellites move rapidly. When the UE wakes up from sleep state, it may still be able to see the same satellite, but the location of the satellite changes greatly; it is also possible to see new satellites.

For a UE in a connected state in an NTN network, it is assumed that when the UE wakes up from sleep state, the same satellite is still seen, but the position of the satellite changes greatly. Before DRX on, if the UE performs a wake up operation in advance, it may cause an increase in power consumption of the terminal. The specific analysis is as follows:

fig. 3 is a schematic diagram of significant changes in propagation Delay between a base station and a terminal in an NTN network in the related art, and as shown in fig. 3, at the starting time of two adjacent DRX On-durations, significant changes occur in propagation delays (Delay 1 and Delay 2) from the base station to the UE.

In fig. 3, taking the base station as the gNB as an example, the propagation delay from the base station to the UE at least includes two parts, namely a forward link (service link) and a feeder link (feeder link). Wherein, the propagation delay of the forward link is the propagation delay from the UE to the satellite. The propagation delay of the feeder link is composed of components such as the propagation delay from the satellite to the ground gateway and the propagation delay from the ground gateway to the base station. In some scenarios, the propagation delay from the base station to the UE may also include the processing delay of an on-satellite radio frequency repeater.

Figure 4a is a schematic diagram of LEO satellite to UE propagation delay and doppler shift versus time when the UE is stationary. As shown in fig. 4a, the altitude of the LEO satellite is 600km altitude. Assume that at time 0, the satellite is located just above the top of the UE's head.

Fig. 4b is a schematic diagram of the difference between the propagation delay and the doppler frequency domain corresponding to two time instants t1 and t2, where t2= t1+2.9h.

As can be seen from fig. 4b, on the forward link (service link), a maximum of 2.9 hours apart results in a delay difference of 23ms (satellite elevation > =10 °) and a doppler frequency domain difference of 88kHz (satellite elevation > =10 °).

In summary, for a UE in a connected state in an NTN network, since the propagation delay difference between a base station and the UE is as high as tens of ms, if the UE advances wake up before DRX on to receive an SSB signal to obtain DL time-frequency synchronization, power consumption may increase.

For a UE in an IDLE state (RRC IDLE) or an INACTIVE state (RRC INACTIVE), a Paging channel is intercepted in one Paging Opportunity (PO) within each DRX cycle to save UE power consumption. Wherein each PO includes a set of PDCCH monitoring occasions (PDCCH monitoring occasions) for transmitting Paging DCI.

In this case, the network configures for the UE: DRX cycle (DRX cycle): t; number of POs included in a Paging Frame (PF, paging Frame)): ns. Wherein, one PF is a wireless frame, including 1 or more POs; offset of PF: PF _ offset; UE ID: UE _ ID.

SFN number of PF is: (SFN + PF _ offset) mod T = (T/N) × (UE _ ID mod N)

Where N is the number of frames contained in T.

The PO numbers are:

the UE determines the position of the PO based on the SFN number of the PF and the serial number of the PO together.

For a UE in an idle state or an inactive state in an NTN network, before the UE monitors paging DCI in a PDCCH monitoring occasion in a PO, the UE may also need to wait up in advance to receive an SSB signal to obtain DL time-frequency synchronization.

Further, the UE may be in motion, and when the UE is ready to wake up to listen to Paging, the location of the UE may change significantly, being in a new cell. Since the cell changes, the UE also needs to receive the system message to determine the PO resource configuration. And the UE determines the time domain position of the next PO resource according to the PO resource configured by the previous satellite. When the UE wakes up, the satellite changes, and PO resource configuration information of a new satellite needs to be acquired again. In the related art, the above behaviors are not defined and are completely realized by the UE.

Fig. 5 is a schematic diagram showing the inconsistency of Paging parameter configurations transmitted by different satellites, as shown in fig. 5, when the UE wakes up from sleep state, the satellites change. If the PO resources configured by the old and new satellites are severely mismatched, the UE may miss the PO opportunity altogether.

For example, the UE is served by satellite a for a first time interval, satellite B for a second time interval, and satellite C for a third time interval.

And the UE receives the system message sent by the satellite A in the first time interval and determines the Paging configuration parameters of the satellite A. The UE receives PO _ A _1 at time t1+ Delay _ A _1. The UE expects to receive PO _ a _2 in t2+ delay after waiting one DRX cycle, where t2= t1+ DRX cycle.

However, the UE is served by satellite B at time t2+ delay. And the satellite B transmits a Paging message aiming at the UE at the time t3 and the time t4 according to the Paging parameter configuration of the satellite B, wherein the time t3< < t2< < t4. When the UE wakes up in a time interval before t2+ Delay _ A _2, the transmission timing of PO _ B _1 is missed and the next PO _ B _2 is not waited for. Therefore, the UE will not hear the Paging message under satellite B.

Fig. 6 is a schematic diagram of the Paging parameter configuration for all satellites transmitting consistently, as shown in fig. 6,

since the propagation distances from satellite a to UE at time t1 and satellite B at time t2 have large differences, the UE wakes up early or late.

When Delay _ B _1 (total propagation Delay from satellite B to UE at time t 2) > Delay _ a _2 (total propagation Delay from satellite a to UE at time t 1), the UE may wake up in advance by Delay _ B _1-Delay _ a _2, which causes a certain waste of power consumption;

when Delay _ B _1 is woven into Delay _a _ _2, the ue may Delay the wake-up of Delay _ a _2-Delay _ B _1 and may miss some or all of the Paging message.

In summary, it is assumed that the Paging parameter configuration transmitted by all satellites in the NTN network is consistent, for example, the offset of Paging is aligned. For the UE in idle and inactive state in the NTN network. Since the propagation delay difference between the base station and the UE is as high as tens of ms, if the UE receives the SSB signal to obtain DL time-frequency synchronization before listening to Paging in the PDCCH listening occasion in the PO in advance, power consumption may increase. That is, if the UE relies on PSS/SSS blind detection entirely, the power consumption impact will not be negligible. In addition, late wake-up of the UE may cause missed Paging messages.

Based on this, in the embodiment of the present invention, first indication information sent by a network device at a first time is received; determining, based on the first indication information, a propagation delay of a downlink signal sent by the network device at a second time and/or a receiving time at which the terminal receives the downlink signal; the second time is after the first time; wherein the second time is related to the starting time of the next DRX period; alternatively, the second time instant is associated with the next PO.

Fig. 7 is a schematic flow chart of an implementation of the information processing method according to the embodiment of the present invention, and is applied to a terminal, as shown in fig. 7, the method includes steps 701 to 702:

step 701: first indication information sent by the network equipment at a first time is received.

It is understood that the network in which the terminal and the network device are located may be an NTN network. Wherein, the NTN network includes: a network in which satellites participate, the orbits of which include Geosynchronous Orbit (GEO), medium Orbit (MEO), low Orbit (LEO). The NTN network may also include a High-Altitude Platform (HAPS) and Air-To-Ground (ATG) network.

In the embodiment of the present invention, a satellite network is taken as an example for description, that is, a network signal transmitted between the terminal and the network device passes through a satellite. Of course, the embodiments of the present invention can also be generalized to other network forms of NTN technology, such as HAPS or ATG.

It can be understood that, when the terminal is a terminal in a connected state in an NTN network, the first indication information sent by the network device at the first time may be received through a system message and/or a Radio Resource Control (RRC) signaling specific to the terminal.

It can be understood that, when the terminal is a terminal in an idle state or an inactive state in an NTN network, the terminal may receive, through a system message, first indication information sent by the network device at a first time.

It is understood that there is a propagation delay for the network device to transmit the downlink signal to the terminal through the satellite.

For example, the network device sends a downlink signal to the terminal at time t1, and the terminal receives the downlink signal at time t 2. Wherein the time t2 is later than the time t1.

Further, the propagation delay existing when the network device sends the downlink signal to the terminal through the satellite at different times may vary significantly.

For example, the network device sends downlink signals to the terminal at time t1 and time t2, respectively, and the terminal receives the downlink signals at time t3 and time t4, respectively.

If delay1 is used to indicate the propagation delay of the network device sending the downlink signal to the terminal at time t1, delay1= t3-t1.

If delay2 is used to indicate the propagation delay of the network device sending the downlink signal to the terminal at time t2, delay2= t4-t3.

Where delay1 is different from delay2, for example, delay1=1s, delay2=3s.

That is, if the propagation delays of the network device transmitting the downlink signal to the terminal at two different times are different, the reception time at which the terminal receives the downlink signal may change significantly.

Based on this, the network device may send the first indication information to the terminal at a first time, so that the terminal may accurately determine the propagation delay of the network device sending the downlink signal at a second time and/or the receiving time of the terminal receiving the downlink signal.

It is to be understood that the first indication information includes first network indication information associated with a second time instant; or the first indication information comprises a difference value between the first network indication information related to the second time and the first network indication information related to the third time; the third time is before the second time; alternatively, the third time is earlier than or equal to the first time.

Wherein the first network indication information comprises at least one of:

general TA (common TA, or called N) _TA,common )；

Common delay (common delay);

a common delay drift rate (common delay drift rate);

second order derivative of Common Delay drift (second order derivative of Common Delay drift);

third order derivative of Common Delay drift (third order derivative of Common Delay drift);

the TA associated with the first link.

The first parameter may specifically be a K _ mac parameter. The K _ mac parameter belongs to a special K value offset (K _ offset).

Fig. 8 is a schematic architecture diagram of an NTN network, and as shown in fig. 8, K _ mac is related to propagation delay between a reference point and a network device, and specifically, when a gateway and a network device are co-sited, K _ mac is related to propagation delay between the reference point and the gateway; and when the network device and the gateway are not co-sited, as shown in fig. 8, K _ mac is related to the sum of the propagation delay between the reference point and the gateway and the propagation delay between the gateway and the network device. K _ offset is related to the total propagation delay from the terminal to the network device, and it can be seen that K _ offset > K _ mac.

Step 702: determining, based on the first indication information, a propagation delay of a downlink signal sent by the network device at a second time and/or a receiving time at which the terminal receives the downlink signal; the second time is after the first time.

It should be noted that, the first time and the second time are both determined by the network device.

In some embodiments, in a case that the first indication information includes first network indication information related to a second time, the determining of the propagation delay of the downlink signal transmitted by the network device at the second time may include:

first, a propagation delay between the network device and the satellite is determined using the first network indication information associated with the second time instant.

Then, a propagation delay between the satellite and the terminal is determined.

And finally, obtaining the propagation delay of the downlink signal sent by the network equipment at the second moment by utilizing the propagation delay between the network equipment and the satellite and the propagation delay between the satellite and the terminal.

It can be understood that, by using the obtained propagation delay of the downlink signal sent by the network device at the second time and the second time, the receiving time at which the terminal receives the downlink signal can be obtained.

In some further embodiments, in a case that the first indication information includes a difference between first network indication information related to the second time and first network indication information related to the third time, the determining the propagation delay of the downlink signal transmitted by the network device at the second time may include:

first, the difference is used to determine the first network indication information related to the second time.

Then, the propagation delay between the network device and the satellite is determined by using the first network indication information related to the second time.

Finally, determining the propagation delay between the satellite and the terminal; and obtaining the propagation delay of the downlink signal sent by the network equipment at the second moment by using the propagation delay between the network equipment and the satellite and the propagation delay between the satellite and the terminal.

In the embodiment of the present invention, a scheme for enhancing DRX reception is provided, where the network device sends the first indication information to the terminal at the first time, and the scheme has the following advantages:

(1) For a terminal in a connected state in an NTN (network to network) network, the terminal can determine the propagation delay of a downlink signal sent by the network equipment at a second moment and/or the receiving moment of the downlink signal received by the terminal according to first indication information sent by the network equipment at a first moment, so that the terminal can accurately know when the downlink signal sent by the network equipment reaches the terminal in the next DRX (discontinuous reception) period, further more accurately determine the time for executing the wake-up operation, and avoid the problem of power consumption increase caused by early wake-up DL synchronization.

(2) Under the condition that the configuration of Paging parameters transmitted by all satellites in the NTN network is kept consistent, aiming at a terminal in an idle state or an inactive state in the NTN network, the terminal can determine the propagation delay of a downlink signal transmitted by network equipment at a second moment and/or the receiving moment of the downlink signal received by the terminal according to first indication information transmitted by the network equipment at a first moment, so that when the downlink signal transmitted by the network equipment reaches the terminal in the next DRX period can be accurately known, the time for executing the wake-up operation can be more accurately determined, and the problem of missing detection of the Paging message caused by late wake-up is avoided.

It should be noted that the first indication information further includes at least one of the following information:

a satellite position associated with the second time;

a second cell ID;

a paging configuration in a first cell;

a paging configuration in a second cell;

the time offset associated with the second time PO.

It can be understood that, for a terminal in an idle state or an inactive state in the NTN network, the terminal may obtain the paging configuration in the second cell through a system message.

It can be understood that, for a terminal in an idle state or an inactive state in the NTN network, when the terminal wakes up, if a satellite changes, the PO resource configuration information of the new satellite needs to be acquired again, that is, the paging configuration in the second cell.

The paging configuration in the second cell may include:

DRX cycle (DRX cycle): t;

number of POs included in a Paging Frame (PF, paging Frame)): ns. Wherein, one PF is a wireless frame, including 1 or more POs;

offset of PF: PF _ offset; UE ID: UE _ ID.

SFN number of PF is: (SFN + PF _ offset) mod T = (T/N) × (UE _ ID mod N)

Where N is the number of frames contained in T.

The PO numbers are:

thus, for a terminal in an idle state or an inactive state in the NTN network, the terminal may jointly determine the location of the PO based on the calculated SFN number of the PF and the sequence number of the PO.

It can be understood that, for a terminal in an idle state or an inactive state in an NTN network, if the terminal has too long sleep time, when the terminal determines the wake-up time according to the PO resource of the original cell, but the satellite position changes significantly, resulting in that the terminal is in a new cell; if the Paging configurations of the new cell and the old cell are different, the UE needs to listen to the system message again after waking up to obtain the Paging configuration. Re-listening to system messages may increase power consumption of the UE.

To reduce UE power consumption, the UE needs to know the new cell ID information after waking up, and the Paging configuration of the new cell, before waking up.

The paging configuration in the second cell is optional.

In an embodiment, the first indication information includes a paging configuration in the second cell. The UE determines the paging configuration of the second cell after waking up by receiving the first indication information in the first cell. In this embodiment, the Paging configurations of the first and second cells may be the same or different.

The first indication information is sent through a system message.

In another embodiment, the first indication information does not include the paging configuration in the second cell, and the UE determines the paging configuration in the second cell according to the paging configuration of the first cell in the first indication information. The UE expects the second cell and the first cell to adopt the same paging configuration. That is, the paging configuration in the first cell is the same as the paging configuration in the second cell.

Specifically, the UE determines the paging configuration of the first cell according to the first indication information or other indication information. In an embodiment, the first indication information includes a paging configuration in the first cell, and the UE determines the paging configuration in the first cell according to the first indication information; in another embodiment, the UE determines the paging configuration in the first cell according to other indication information, such as a system message, received in the first cell; in another embodiment, the UE determines the Paging configuration of the second cell according to the Paging configuration of the last cell entering the first cell.

Thus, after the terminal determines the paging configuration in the second cell according to the paging configuration in the first cell, the terminal may determine, according to the paging configuration in the second cell, the propagation delay of the network device for sending the downlink signal at the next PO and/or the receiving time of the terminal for receiving the downlink signal.

In order to achieve the above object, it needs to be assumed that a terminal of the NTN network has a GNSS positioning capability, that is, the terminal has a GNSS positioning capability and is capable of determining a position of the terminal itself at the next PO, and a process of the terminal determining a propagation delay of a downlink signal sent by the network device at the second time and/or a receiving time when the terminal receives the downlink signal may include:

first, the terminal determines the satellite position related to the second time according to the prior information or the received first indication information.

The terminal then determines a spatial propagation delay from the satellite to the terminal at the second time based on the position of the satellite associated with the second time and the position of the terminal.

And finally, the terminal determines the propagation delay of the downlink signal sent by the network equipment at the second moment and/or the receiving moment of the downlink signal received by the terminal according to the propagation delay of the first link and the propagation delay between the satellite and the terminal.

It will be appreciated that terminals for NTN networks may also not have GNSS positioning capabilities. Specifically, the terminal does not have GNSS positioning capability, or because GNSS positioning accuracy is not sufficient, the UE cannot determine its own position at the next PO. In this scenario, the first indication information further includes: the time offset associated with the second time PO.

The process of the terminal determining the receiving time of the downlink signal sent by the network device at the second time may include:

first, the terminal determines a time offset δ associated with the second time PO based on the received first indication information.

Then, the terminal determines the receiving time of the downlink signal sent by the network device at the first time.

Finally, the terminal determines the receiving time of the downlink signal sent by the network device at the second time based on the receiving time of the downlink signal sent by the network device at the first time and the time offset delta related to the second time PO included in the first indication information.

It should be noted that the POs of different terminals are uniformly distributed, and therefore, the time offsets δ corresponding to different POs may be different.

For a terminal in a connected state at a first time, the network device may indicate, through the first indication information dedicated to the terminal, the time offset δ associated with the second time PO.

But for the terminal in the idle state and the inactive state at the first time, the first indication information is a system message. Considering that the time offsets δ corresponding to different POs are different, the system message needs to include at least one list of time offset δ values for the terminal to determine the mapping relationship between the time offset δ values and the POs.

It is to be understood that the process of the network device determining the time offset δ associated with the second time PO may include:

the network device may determine all potential PO transmission times after time t based on a formula for determining POs, and select all or a portion of POs within a first time window after time t to determine a time offset δ associated with the PO at a second time.

Wherein the first time window is an integer multiple of a DRX period. For example, the first time window is equal to a DRX cycle.

It will be appreciated that it is assumed that the network device transmits a system message at a first time instant (t). The network device may determine the beam coverage at the current time, i.e., time t, and select a reference point. The network device determines a cell that can serve the reference point at the second time (t + δ), and satellite service parameters of the cell, such as various network indication information. Here, the cell at time (t + δ) may be the same as or different from the cell at time t. When the cells are different, the two cells may belong to the same satellite or to different satellites. And the network equipment sends the determined satellite service parameters to a terminal through a system message at the current moment, namely the t moment.

It will be appreciated that the network device is assumed to transmit a system message at time t. The network device determines the beam coverage at the current time (time t) and selects a reference point. The network device can predict when a cell or satellite will change in the future for the reference point and determine a second set of time instants based thereon. And the maximum time in the second time set is not less than the sum of the current time and the DRX period. The network device determines the cell that can serve the reference point at each second time instant (t + δ), and service parameters of the cell, such as various network indication information. Here, the cell at time t + δ may be the same as or different from the cell at time t. When the cells are different, the two cells may belong to the same satellite or may belong to different satellites. And the network equipment transmits the determined satellite service parameters through a system message at the current time t. It may be noted that offset and rate of change information may be included in the satellite service parameters. Therefore, the terminal may derive the parameter F (t 2) at time t2 based on the information configured at time t1 (i.e., offset and rate of change), i.e.:

f (t 2) = offset amount + rate of change × (t 2-t 1).

In one embodiment, the parameter F (t 2) is a universal time advance (TA _ common); in another embodiment, the parameter F (t 2) is a first parameter, wherein the first parameter is related to a time delay between the network device and a reference point.

Fig. 9 is a schematic flow chart of a specific implementation of the information processing method according to the embodiment of the present invention, and as shown in fig. 9, the method includes steps 901 to 906:

step 901: the terminal receives first indication information sent by the network equipment at a first time.

It is understood that the network in which the terminal and the network device are located may be an NTN network. The NTN network may include: a network in which the satellite participates.

That is, the network signal transmitted between the terminal and the network device may pass through a satellite.

It can be understood that, when the terminal is a connected terminal in an NTN network, the first indication information sent by the network device at the first time may be received through a system message and/or terminal-specific RRC signaling.

Step 902: and if the first indication information comprises first network indication information related to the second moment, the terminal determines the first network indication information related to the second moment.

It is to be understood that the first time and the second time are both determined by the network device for timing.

Step 903: and determining the time delay of the first link according to the first network indication information which is determined by the first indication information and is relevant to the second moment.

Wherein the first link is a propagation link between the network device and a satellite.

Taking a network device as an example of the base station, the first link may specifically include: one or more of a base station to gateway link and a gateway to satellite link.

The latency of the first link may include: one or more of a base station to gateway link delay, a gateway to satellite link delay, a gateway processing delay, and a satellite processing delay.

It is to be understood that the first link may be referred to as a feeder link, as shown in fig. 10.

It is to be understood that the first network indication information may include at least one of:

general purpose TA;

general time delay;

a general delay drift rate;

second derivative of the universal delay drift;

third derivative of the universal delay drift;

a first parameter; the first parameter is related to a time delay between the base station and a reference point;

the TA associated with the first link.

In some embodiments, the first network indication information comprises:

general purpose TA.

If the uplink and downlink timing alignment points are on the network device, e.g., the base station side, the TA associated with the first link = generic TA.

That is, a general TA is first utilized to obtain a TA associated with the first link; and then, the TA related to the first link is utilized to obtain the time delay of the first link.

It is to be understood that the TA associated with the first link may represent a difference between a time when the satellite receives the downlink signal transmitted by the network device at the second time and the second time, that is, the time delay of the first link may be directly obtained according to the TA associated with the first link.

In some embodiments, the first network indication information comprises:

general time delay;

a general delay drift rate;

a second derivative of the general delay drift;

third derivative of the general delay drift.

Specifically, the general TA can be calculated according to the following formula (1):

generic TA = generic delay + generic delay drift rate x Δ t + second derivative of the generic delay drift x (Δ t) ² + third derivative of the general delay drift x (Δ t) ³ (1)

It can be understood that after the general TA is obtained by calculation according to the formula (1), the TA related to the first link is obtained by using the general TA; finally, the time delay of the first link can be obtained by using the TA related to the first link.

In some embodiments, the first network indication information may include:

general purpose TA;

a first parameter.

The first parameter is related to a time delay between the base station and the reference point, and may specifically be a K _ mac parameter.

If the uplink and downlink timing alignment point is not on the network device, e.g., the base station side, the TA associated with the first link = generic TA + first parameter.

That is, the TA related to the first link is obtained by using the general TA and the first parameter; and then, the TA related to the first link is utilized to obtain the time delay of the first link.

Likewise, the generic TA can be calculated from the following parameters:

general time delay;

a general delay drift rate;

second derivative of the universal delay drift;

third derivative of the general delay drift.

In some embodiments, the first network indication information may include:

a latency of the first link.

That is, the first network indication information directly indicates a latency of the first link.

In some embodiments, the first network indication information may include:

the first link related TA.

That is, the first network indication information directly indicates the TA related to the first link.

Thus, the time delay of the first link can be obtained by using the TA associated with the first link.

Step 904: determining a satellite position and a terminal position associated with a second time instant; and determining the propagation delay between the satellite and the terminal according to the determined satellite position and the terminal position.

It is to be understood that determining the satellite position associated with the second time includes:

acquiring ephemeris information of the satellite before the second moment;

and determining the satellite position at the second moment according to the acquired ephemeris information of the satellite.

Specifically, ephemeris information of the satellite before the second moment is acquired through a satellite signal broadcasted by the satellite; determining the variation of the satellite position according to the ephemeris information before the second moment; and deducing the satellite position at the second moment according to the determined variation of the satellite position. The ephemeris information of the satellite may include three-dimensional coordinates, time, and the like of the satellite.

It is to be understood that ephemeris information of the satellite at the second time may also be directly obtained, and thus, the position of the satellite at the second time is directly obtained according to the obtained ephemeris information.

It is understood that determining the location of the terminal relative to the second time instant includes:

acquiring self positioning information;

and determining the position of the terminal at the second moment according to the acquired positioning information.

Specifically, the terminal may obtain its own positioning information through a Global Navigation Satellite System (GNSS) to obtain the terminal position at the second time. The positioning information may include information such as three-dimensional coordinates and time of the terminal.

It is understood that after determining the position of the satellite at the second time and the position of the terminal at the second time, the three-dimensional coordinates of the satellite at the second time and the three-dimensional coordinates of the terminal at the second time may be determined, and then, using the three-dimensional coordinates of the satellite and the three-dimensional coordinates of the terminal, in combination with the speed of light, a system of equations is established to obtain the propagation delay between the satellite and the terminal.

Step 905: and determining the propagation delay of the downlink signal sent by the network equipment at the second moment according to the first link delay and the propagation delay between the satellite and the terminal.

Specifically, the propagation delay of the downlink signal sent by the network device at the second time may be calculated according to the following formula (2):

T1＝T2+T3； (2)

wherein, T1 represents a propagation delay of a downlink signal transmitted by the network device at a second time; t2 represents the first link delay; t3 represents the propagation delay between the satellite and the terminal.

Step 906: and determining the receiving time of the downlink signal received by the terminal according to the propagation delay of the downlink signal sent by the network equipment at the second time.

Specifically, the receiving time of the terminal for receiving the downlink signal is calculated according to the following formula (3);

T4＝T5+T1； (3)

In the embodiment of the invention, the network equipment directly indicates the first network indication information related to the second moment to the terminal, and the method has the following advantages that:

(1) For a terminal in a connection state in an NTN network, the terminal may obtain the propagation delay between the network device and the terminal by using the delay of the first link corresponding to the second time directly indicated by the network device, and combining the propagation delay between the satellite and the terminal, so as to accurately know when a downlink signal sent by the network device reaches the terminal in the next DRX cycle, and further, the time for performing the wake-up operation may be more accurately determined, thereby avoiding the problem of power consumption increase caused by early wake-up DL synchronization.

(2) Under the condition that the configuration of Paging parameters transmitted by all satellites in the NTN network is kept consistent, aiming at a terminal in an idle state or an inactive state in the NTN network, the terminal can obtain the propagation delay between the network equipment and the terminal by utilizing the delay of a first link corresponding to a second moment directly indicated by the network equipment and combining the propagation delay between the satellites and the terminal, so that when a downlink signal sent by the network equipment in the next DRX period reaches the terminal can be accurately known, the time for executing the wake-up operation can be more accurately determined, and the problem of missing detection of Paging messages caused by late wake-up is avoided.

Fig. 11 is a schematic flow chart of a specific implementation of the information processing method according to the embodiment of the present invention, and as shown in fig. 11, the method includes steps 1101 to 1106:

step 1101: the terminal receives first indication information sent by the network equipment at a first time.

Step 1102: and if the first indication information comprises a difference value between the first network indication information related to the second moment and the first network indication information related to the third moment, determining the first network indication information related to the second moment according to the difference value and the first network indication information related to the third moment.

It is to be understood that the first network indication information related to the second time instant and the first network indication information related to the third time instant are associated with the same cell.

In one embodiment, the first network indication information includes:

general purpose TA.

That is, the first indication information includes a difference between the general TA associated with the second time instant and the general TA associated with the third time instant; the third time is before the second time; alternatively, the third time is earlier than or equal to the first time.

It is understood that the network device may also send the indication information to the terminal at the third time; and the indication information sent by the network device at the third time is used for the terminal to determine the general TA related to the third time. The first indication information sent by the network device at the first time is used for the terminal to determine a difference value between the general TA related to the second time and the general TA related to the third time.

It is understood that, after the terminal obtains the difference indicated by the network device at the first time and the generic TA indicated by the network device at the third time, the generic TA related to the second time, that is, the first network indication information related to the second time, can be calculated according to the following formula (4).

Universal TA associated with the second time instant = universal TA associated with the third time instant + difference between universal TA associated with the second time instant and universal TA associated with the third time instant (4)

Wherein the third time is prior to the second time. In one exemplary configuration, the third time is earlier than or equal to the first time.

It should be noted that the process of the network device determining the difference value may include:

first, when the network device sends the first indication information at the first time, it should be able to know the general TA value associated with the third time. The network device then recalculates a generic TA associated with the second time instant. Finally, the network device determines a difference between the common TAs associated with the second time (future) and the third time based on the common TAs associated with the second time (indicated).

It should be noted that the third time may also be a time at which the generic TA indication information is transmitted last time, which is not earlier than the first time.

In another embodiment, the first network indication information includes at least one of:

general time delay;

a general delay drift rate;

second derivative of the universal delay drift;

third derivative of the general delay drift.

That is, in the case that the third time is the first time, the first network indication information may include a universal delay, a universal delay drift rate, or a higher derivative of the universal delay, the universal delay drift rate, and the universal delay drift.

In this case, the process of the network device determining the difference value may include:

firstly, the network device determines a general TA value corresponding to the first time according to the first network indication information and a calculation formula of the general TA. Then, the network device calculates a generic TA value associated with the second time according to the first network indication information and a calculation formula of the generic TA. Finally, calculating a difference value between the general TA related to the second time and the general TA related to the third time according to the general TA value related to the first time and the general TA value related to the second time; wherein the third time = the first time.

Wherein, the calculation formula of the general TA is as follows:

general TA (delta t) = general delay + general delay drift rate x delta t + second derivative of general delay drift x (delta t) ^2+ third derivative of general delay drift x (delta t) ^3.

The second derivative and the third derivative of the general delay offset may be obtained by deriving the general delay offset rate.

Step 1103: and determining the time delay of the first link according to the first network indication information which is determined by the first indication information and is relevant to the second moment.

Step 1104: determining a satellite position and a terminal position associated with a second time instant; and determining the propagation delay between the satellite and the terminal according to the determined satellite position and the terminal position.

The process of determining the propagation delay between the satellite and the terminal may refer to the description above.

Step 1105: and determining the propagation delay of the downlink signal sent by the network equipment at the second moment according to the first link delay and the propagation delay between the satellite and the terminal.

The process of determining the propagation delay of the downlink signal transmitted by the network device at the second time may refer to the above description.

Step 1106: and determining the receiving time of the downlink signal received by the terminal according to the propagation delay of the downlink signal sent by the network equipment at the second time.

The process of determining the receiving time number of the terminal for receiving the downlink signal may refer to the above description.

In the embodiment of the present invention, the network device indicates the difference between the first network indication information related to the second time and the first network indication information related to the third time to the terminal, which has the following advantages:

(1) For a terminal in a connected state in an NTN network, the terminal can determine the time delay of a first link corresponding to a second moment by using the difference, and then obtain the propagation time delay between the network equipment and the terminal by combining the propagation time delay between the satellite and the terminal, so that the time when a downlink signal sent by the network equipment reaches the terminal in the next DRX period can be accurately known, the time for executing the wake-up operation can be further accurately determined, and the problem of power consumption increase caused by early wake-up DL synchronization is avoided.

(2) Under the condition that the configuration of Paging parameters transmitted by all satellites in the NTN network is kept consistent, aiming at a terminal in an idle state or an inactive state in the NTN network, the terminal can determine the time delay of a first link corresponding to a second moment by using the difference, and then obtains the propagation time delay between network equipment and the terminal by combining the propagation time delay between the satellites and the terminal, so that the time when a downlink signal sent by the network equipment reaches the terminal in the next DRX period can be accurately known, the time for executing the wake-up operation can be more accurately determined, and the problem of missing detection of Paging messages caused by late wake-up is avoided.

Fig. 12 is a schematic flow chart of an implementation of the information processing method according to the embodiment of the present invention, and is applied to a network device, as shown in fig. 12, the method includes step 1201:

step 1201: sending first indication information to a terminal at a first moment;

In an embodiment, the first indication information includes first network indication information related to a second time instant; or the first indication information comprises a difference value between the first network indication information related to the second time and the first network indication information related to the third time; the third time is before the second time; or, the third time is earlier than or equal to the first time;

wherein the first network indication information comprises at least one of:

general purpose TA;

general time delay;

a general delay drift rate;

second derivative of the universal delay drift;

third derivative of the universal delay drift;

the TA associated with the first link.

In an embodiment, the first indication information further includes at least one of the following information:

a satellite position associated with the second time;

a second cell ID;

a paging configuration in a first cell;

a paging configuration in a second cell;

the time offset associated with the second time PO.

In an embodiment, the terminal expects the paging configuration in the first cell to be the same as the paging configuration in the second cell; the first cell corresponds to the first time, and the second cell corresponds to the second time.

In order to implement the information processing method according to the embodiment of the present invention, an information processing apparatus is further provided in an embodiment of the present invention, and fig. 13 is a schematic diagram of a composition structure of the information processing apparatus according to the embodiment of the present invention; as shown in fig. 13, the apparatus includes:

a receiving unit 131, configured to receive first indication information sent by a network device at a first time;

a processing unit 132, configured to determine, based on the first indication information, a propagation delay of a downlink signal sent by the network device at a second time and/or a receiving time at which the terminal receives the downlink signal; the second time is after the first time;

In an embodiment, the first indication information includes first network indication information related to a second time instant;

alternatively, the first and second electrodes may be,

wherein the first network indication information comprises at least one of:

general purpose TA;

general time delay;

a general delay drift rate;

a second derivative of the general delay drift;

third derivative of the universal delay drift;

the TA associated with the first link.

In an embodiment, the processing unit 122 is specifically configured to:

alternatively, the first and second electrodes may be,

In an embodiment, the processing unit 122 is specifically configured to:

and calculating the propagation delay of the downlink signal sent by the network device at the second moment according to the following formula:

T1＝T2+T3；

In an embodiment, the processing unit 122 is specifically configured to:

calculating the receiving time of the terminal for receiving the downlink signal according to the following formula;

T4＝T5+T1；

a satellite position associated with the second time;

a paging configuration in a second cell;

a second cell ID;

a paging configuration in a second cell;

the time offset associated with the second time PO.

In practical applications, the receiving unit 131 may be implemented by a communication interface in an information processing apparatus. The processing unit 132 may be implemented by a processor in an information processing apparatus.

It should be noted that: in the information processing apparatus provided in the above embodiment, when performing information processing, only the division of each program module is exemplified, and in practical applications, the processing may be distributed to different program modules according to needs, that is, the internal structure of the apparatus may be divided into different program modules to complete all or part of the processing described above. In addition, the information processing apparatus and the information processing method provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments and are not described herein again.

In order to implement the information processing method according to the embodiment of the present invention, an information processing apparatus is further provided in an embodiment of the present invention, and fig. 14 is a schematic structural diagram of the information processing apparatus according to the embodiment of the present invention; as shown in fig. 14, the apparatus includes:

a transmitting unit 141, configured to transmit first indication information to a terminal at a first time;

the first indication information is used for the terminal to determine a propagation delay of a downlink signal sent by the network device at a second moment and/or a receiving moment when the terminal receives the downlink signal; the second time is subsequent to the first time; the second time is related to the starting time of the next DRX period; alternatively, the second time is associated with the next PO.

alternatively, the first and second electrodes may be,

wherein the first network indication information comprises at least one of:

general purpose TA;

general time delay;

a general delay drift rate;

second derivative of the universal delay drift;

third derivative of the universal delay drift;

the TA associated with the first link.

a satellite position associated with the second time;

paging configuration in a first cell;

a second cell identity, ID;

a paging configuration in a second cell;

the time offset associated with the second time PO.

In practical applications, the sending unit 141 may be implemented by a communication interface in an information processing apparatus.

It should be noted that: in the information processing apparatus provided in the above embodiment, when performing information processing, only the division of each program module is exemplified, and in practical applications, the processing may be distributed to different program modules according to needs, that is, the internal structure of the apparatus may be divided into different program modules to complete all or part of the processing described above. In addition, the information processing apparatus and the information processing method provided in the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments, and are not described herein again.

An embodiment of the present invention further provides a terminal, as shown in fig. 15, including:

a first communication interface 151 capable of performing information interaction with other devices;

the first processor 152 is connected to the first communication interface 151, and is configured to execute a method provided by one or more technical solutions of the first router side when running a computer program. And the computer program is stored on the memory 153.

It should be noted that: the specific processing procedures of the first processor 152 and the first communication interface 151 are described in detail in the method embodiment, and are not described herein again.

Of course, in practice, the various components in the terminal 150 are coupled together by a bus system 154. It will be appreciated that the bus system 154 is used to enable communications among the components. The bus system 154 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 154 in fig. 15.

The first memory 153 in the embodiment of the present application is used to store various types of data to support the operation of the terminal 150. Examples of such data include: any computer program for operating on the terminal 150.

The method disclosed in the embodiment of the present application can be applied to the first processor 152, or implemented by the first processor 152. The first processor 152 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the first processor 152. The first Processor 152 may be a general purpose Processor, a Digital data Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc. The first processor 152 may implement or perform the methods, steps and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the first memory 153, and the first processor 152 reads the information in the first memory 153 to complete the steps of the foregoing method in combination with its hardware.

An embodiment of the present invention further provides a network device, as shown in fig. 16, including:

a second communication interface 161 capable of performing information interaction with other devices;

the second processor 162 is connected to the second communication interface 161, and configured to execute the method provided by one or more technical solutions of the second router side when running a computer program. And the computer program is stored on the second memory 163.

It should be noted that: the specific processing procedures of the second processor 162 and the second communication interface 161 are detailed in the method embodiment, and are not described herein again.

Of course, in practice, the various components of network device 160 are coupled together by bus system 164. It will be appreciated that the bus system 164 is used to enable communications among the components. The bus system 164 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 164 in fig. 16.

The second memory 163 in the embodiment of the present application is used to store various types of data to support the operation of the network device 160. Examples of such data include: any computer program for operating on network device 160.

The method disclosed in the embodiment of the present application may be applied to the second processor 162, or implemented by the second processor 162. The second processor 162 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by an integrated logic circuit of hardware or an instruction in the form of software in the second processor 162. The second Processor 162 may be a general purpose Processor, a Digital data Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc. The second processor 162 may implement or perform the methods, steps and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the second memory 163, and the second processor 162 reads the information in the second memory 163 and, in conjunction with its hardware, performs the steps of the aforementioned method.

In an exemplary embodiment, the terminal 150 and the network Device 160 may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, programmable Logic Devices (PLDs), complex Programmable Logic Devices (CPLDs), field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the foregoing methods.

It is to be understood that the memories (the first memory 153 and the second memory 163) of the embodiments of the present application may be either volatile memories or nonvolatile memories, and may include both volatile and nonvolatile memories. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a magnetic random access Memory (Flash Memory), a magnetic surface Memory, an optical Disc, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), synchronous Static Random Access Memory (SSRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), enhanced Synchronous Dynamic Random Access Memory (ESDRAM), enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), synchronous Dynamic Random Access Memory (SLDRAM), direct Memory (DRmb Access), and Random Access Memory (DRAM). The memories described in the embodiments of the present application are intended to comprise, without being limited to, these and any other suitable types of memory.

In an exemplary embodiment, the present invention further provides a storage medium, i.e. a computer storage medium, in particular a computer readable storage medium, for example comprising a first memory 151 storing a computer program, which is executable by a first processor 152 of the terminal 150 to perform the steps of the aforementioned terminal side method. The computer readable storage medium may be Memory such as FRAM, ROM, PROM, EPROM, EEPROM, flash Memory, magnetic surface Memory, optical disk, or CD-ROM.

It should be noted that: "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

In addition, the technical solutions described in the embodiments of the present invention may be arbitrarily combined without conflict.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. An information processing method, applied to a terminal, the method comprising:

receiving first indication information sent by network equipment at a first moment;

determining, based on the first indication information, a propagation delay of a downlink signal sent by the network device at a second time and/or a receiving time at which the terminal receives the downlink signal; the second time is subsequent to the first time;

wherein the second time is related to the starting time of the next Discontinuous Reception (DRX) cycle; alternatively, the second time is associated with the next paging occasion PO.

2. The method of claim 1,

alternatively, the first and second electrodes may be,

wherein the first network indication information comprises at least one of:

a general time advance TA;

general time delay;

a general delay drift rate;

second derivative of the universal delay drift;

third derivative of the universal delay drift;

the TA associated with the first link.

3. The method of claim 2, further comprising:

alternatively, the first and second electrodes may be,

4. The method according to claim 3, wherein the determining, based on the first indication information, a propagation delay of a downlink signal transmitted by the network device at the second time and/or a reception time at which the terminal receives the downlink signal comprises:

5. The method of claim 4, wherein the propagation delay of the downlink signal transmitted by the network device at the second time is calculated according to the following formula:

T1＝T2+T3；

wherein, T1 represents a propagation delay of a downlink signal sent by the network device at the second time; t2 represents the first link delay; t3 represents the propagation delay between the satellite and the terminal.

6. The method of claim 5, wherein the receiving time of the terminal for receiving the downlink signal is calculated according to the following formula;

T4＝T5+T1；

7. The method of claim 2, wherein the first indication information further comprises at least one of the following information:

a satellite position associated with the second time;

paging configuration in a first cell;

a second cell identity, ID;

a paging configuration in a second cell;

the time offset associated with the second time PO.

8. The method of claim 1, further comprising:

the terminal expects the paging configuration in the first cell to be the same as the paging configuration in the second cell; the first cell corresponds to the first time, and the second cell corresponds to the second time.

9. An information processing method applied to a network device, the method comprising:

sending first indication information to a terminal at a first moment;

10. The method of claim 9,

alternatively, the first and second electrodes may be,

wherein the first network indication information comprises at least one of:

general purpose TA;

general time delay;

a general delay drift rate;

a second derivative of the general delay drift;

third derivative of the universal delay drift;

the TA associated with the first link.

11. The method of claim 9, wherein the first indication information further comprises at least one of the following information:

a satellite position associated with the second time;

a paging configuration in a first cell;

a second cell identity, ID;

a paging configuration in a second cell;

the time offset associated with the second instant PO.

12. The method of claim 9, wherein the terminal expects a paging configuration in a first cell to be the same as a paging configuration in a second cell; the first cell corresponds to the first time, and the second cell corresponds to the second time.

13. An information processing apparatus characterized by comprising:

14. An information processing apparatus characterized by comprising:

15. A terminal, comprising:

16. A network device, comprising:

a second processor for performing a second processing of the received signal,

17. A terminal comprising a processor and a memory for storing a computer program capable of running on the processor,

wherein the processor is adapted to perform the steps of the method of any one of claims 1 to 8 when running the computer program.

18. A network device comprising a processor and a memory for storing a computer program capable of running on the processor,

wherein the processor is adapted to perform the steps of the method of any one of claims 9 to 12 when running the computer program.

19. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 12.