Information processing method, device and equipment

Abstract

The invention provides an information processing method, device and equipment, and the information processing method comprises the steps: obtaining the time length corresponding to an integer subframe interval between a first uplink subframe of a terminal and a second uplink subframe of the terminal, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the variable quantity of timing advance; determining a round trip time (RTT) from the terminal to an uplink timing reference point (UTSRP) according to the duration corresponding to the integer subframe interval, the time difference of receiving the transmission by the terminal, the time difference of receiving the transmission by the base station and the variable quantity of the timing advance; wherein the variable quantity of the timing advance is determined according to the timing change rate of the service link. According to the scheme, the network equipment can be supported to acquire the RTT on the basis of the timing change rate of the service link, so that the accuracy of acquiring the RTT in an NTN scene is improved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an information processing method, device and equipment. Background Art

[0002] For non-terrestrial network (NTN) scenarios, the location of user equipment (UE) is currently under discussion to ensure the accuracy and rationality of the UE's reported location, so that the services provided by the network to the UE can better meet the needs of local laws and regulations. Specifically, the UE measurement quantity in the multi-path trip time (Multi-Round Trip Time, Multi-RTT) mode in the NTN scenario is currently under discussion: the expression of the UE Rx (receive)-Tx (send) time difference. The main preferred solution is to use the UE Rx-Tx time difference parameter + offset (offset) of the new radio (New Radio, NR) in the existing standard to represent the UE Rx-Tx time difference in the NTN scenario. However, the specific round-trip time (RTT) calculation method is not discussed, and the existing solution for obtaining RTT is applied to the NTN scenario. The result obtained has poor accuracy, so it is not suitable for the NTN scenario.

[0003] As described above, the accuracy of the RTT obtained for the NTN scenario in the prior art is very poor. Summary of the invention

[0004] The purpose of the present application is to provide an information processing method, apparatus and device to solve the problem of poor RTT accuracy obtained for NTN scenarios in the prior art.

[0005] In order to solve the above technical problems, the embodiment of the present application provides an information processing method, which is applied to a network device, including:

[0006] Obtaining the duration corresponding to the integer subframe interval between the first uplink subframe of the terminal and the second uplink subframe of the terminal, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance; the change in the timing advance is determined according to the timing change rate of the service link;

[0007] Determine a round-trip delay RTT from the terminal to an uplink timing reference point UTSRP according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance;

[0008] The index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the downlink subframe carrying the positioning reference signal PRS;

[0009] The terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe;

[0010] The base station receives and sends a time difference that is equal to a time difference between a third uplink subframe and a third downlink subframe of the UTSRP, the index number of the third uplink subframe is the same as the index number of the third downlink subframe, and the third uplink subframe refers to an uplink subframe carrying a sounding reference signal SRS;

[0011] The change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the timing advance of the first uplink subframe, and the index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of the UTSRP.

[0012] Optionally, obtaining the duration corresponding to the integer subframe interval and the terminal receiving and sending time difference includes:

[0013] receiving a duration corresponding to the integer subframe interval sent by the terminal and a time difference between receiving and sending by the terminal;

[0014] Alternatively, receiving the terminal receiving and sending time difference, the timing change rate of the service link and the first information sent by the terminal; the first information includes a first index difference between the first uplink subframe and the second uplink subframe, or the first information includes the first index information of the first uplink subframe and the second index information of the second uplink subframe, and the first index information and the second index information are used to obtain the first index difference;

[0015] A duration corresponding to the integer subframe interval is obtained according to the timing change rate and the first information.

[0016] Optionally, also include:

[0017] receiving a change rate of the timing change rate sent by the terminal;

[0018] The obtaining, according to the timing change rate and the first information, a duration corresponding to the integer subframe interval includes:

[0019] The duration corresponding to the integer subframe interval is obtained according to the timing change rate, the first information and the change rate of the timing change rate.

[0020] Optionally, also include:

[0021] Acquire timing advance TA change rate information, wherein the TA change rate information includes: a common TA change rate and at least one of a change rate of the common TA change rate;

[0022] The determining, according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance, a round-trip delay RTT from the terminal to an uplink timing reference point UTSRP includes:

[0023] Determine the RTT from the terminal to UTSRP according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, the change in the timing advance, and the TA change rate information;

[0024] The common TA change rate refers to the change rate of the RTT from the UTSRP to the satellite.

[0025] Optionally, obtaining the base station receiving and sending time difference and TA change rate information includes:

[0026] The base station receiving and sending time difference and TA change rate information within the validity period sent by the receiving base station.

[0027] Optionally, obtaining the change in the timing advance includes:

[0028] receiving a change in the timing advance sent by the terminal;

[0029] Alternatively, receiving a timing change rate and second information of a service link sent by the terminal; the second information includes a second index difference between the first uplink subframe and the third uplink subframe, or the second information includes first index information of the first uplink subframe and third index information of the third uplink subframe, and the first index information and the third index information are used to obtain the second index difference;

[0030] The change amount of the timing advance is obtained according to the timing change rate, the second information, the common TA change rate and the change rate of the common TA change rate.

[0031] Optionally, also include:

[0032] receiving a change rate of the timing change rate sent by the terminal;

[0033] The obtaining, according to the timing change rate, the second information, the common TA change rate, and the change rate of the common TA change rate, a change amount of the timing advance includes:

[0034] The change amount of the timing advance is obtained according to the timing change rate, the second information, the common TA change rate, the change rate of the common TA change rate and the change rate of the timing change rate.

[0035] The embodiment of the present application also provides an information processing method, which is applied to a terminal, including:

[0036] Acquire the terminal receiving and sending time difference, third information and fourth information of the terminal; the third information includes: the duration corresponding to the integer subframe interval between the first uplink subframe of the terminal and the second uplink subframe of the terminal, or the timing change rate of the service link and the first information; the fourth information includes: the change amount of the timing advance, or the timing change rate of the service link and the second information;

[0037] Sending the terminal receiving and sending time difference, the third information and the fourth information to the network device;

[0038] The index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the downlink subframe carrying the positioning reference signal PRS;

[0039] The terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe;

[0040] The change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the timing advance of the first uplink subframe, the index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of the UTSRP, and the third uplink subframe refers to an uplink subframe carrying a sounding reference signal SRS;

[0041] The first information includes a first index difference between the first uplink subframe and the second uplink subframe, or the first information includes first index information of the first uplink subframe and second index information of the second uplink subframe, and the first index information and the second index information are used to obtain the first index difference;

[0042] The second information includes a second index difference between the first uplink subframe and the third uplink subframe, or the second information includes first index information of the first uplink subframe and third index information of the third uplink subframe, and the first index information and the third index information are used to obtain the second index difference.

[0043] Optionally, obtaining the change in the timing advance includes:

[0044] Obtaining a common TA change rate and a change rate of the common TA change rate from a base station;

[0045] Obtaining a change amount of the timing advance according to the timing change rate, the second information, the common TA change rate, and a change rate of the common TA change rate;

[0046] The common TA change rate refers to the change rate of the RTT from UTSRP to the satellite.

[0047] Optionally, also include:

[0048] Obtaining a rate of change of the timing change rate;

[0049] The obtaining, according to the timing change rate, the second information, the common TA change rate, and the change rate of the common TA change rate, a change amount of the timing advance includes:

[0050] The change amount of the timing advance is obtained according to the timing change rate, the second information, the common TA change rate, the change rate of the common TA change rate and the change rate of the timing change rate.

[0051] Optionally, when the third information includes the timing change rate and the first information, the third information also includes a change rate of the timing change rate.

[0052] Optionally, obtaining the timing change rate includes:

[0053] Measuring a downlink timing signal to obtain the timing change rate;

[0054] Alternatively, the timing change rate is calculated based on satellite ephemeris information and the location information of the terminal.

[0055] The embodiment of the present application further provides an information processing device, which is a network device, including a memory, a transceiver, and a processor:

[0056] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0057] Obtaining the duration corresponding to the integer subframe interval between the first uplink subframe of the terminal and the second uplink subframe of the terminal, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance; the change in the timing advance is determined according to the timing change rate of the service link;

[0058] Determine a round-trip delay RTT from the terminal to an uplink timing reference point UTSRP according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance;

[0059] The index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the downlink subframe carrying the positioning reference signal PRS;

[0060] The terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe;

[0061] The base station receives and sends a time difference that is equal to a time difference between a third uplink subframe and a third downlink subframe of the UTSRP, the index number of the third uplink subframe is the same as the index number of the third downlink subframe, and the third uplink subframe refers to an uplink subframe carrying a sounding reference signal SRS;

[0062] The change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the timing advance of the first uplink subframe, and the index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of the UTSRP.

[0063] Optionally, obtaining the duration corresponding to the integer subframe interval and the terminal receiving and sending time difference includes:

[0064] Receiving, by the transceiver, the duration corresponding to the integer subframe interval sent by the terminal and the time difference between receiving and sending by the terminal;

[0065] Alternatively, receiving, by the transceiver, the terminal receiving and sending time difference, the timing change rate of the service link, and first information sent by the terminal; the first information includes a first index difference between the first uplink subframe and the second uplink subframe, or the first information includes first index information of the first uplink subframe and second index information of the second uplink subframe, and the first index information and the second index information are used to obtain the first index difference;

[0066] A duration corresponding to the integer subframe interval is obtained according to the timing change rate and the first information.

[0067] Optionally, the operation further includes:

[0068] Receiving, by the transceiver, a rate of change of the timing change rate sent by the terminal;

[0069] The obtaining, according to the timing change rate and the first information, a duration corresponding to the integer subframe interval includes:

[0070] The duration corresponding to the integer subframe interval is obtained according to the timing change rate, the first information and the change rate of the timing change rate.

[0071] Optionally, the operation further includes:

[0072] Acquire timing advance TA change rate information, wherein the TA change rate information includes: a common TA change rate and at least one of a change rate of the common TA change rate;

[0073] The determining, according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance, a round-trip delay RTT from the terminal to an uplink timing reference point UTSRP includes:

[0074] Determine the RTT from the terminal to UTSRP according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, the change in the timing advance, and the TA change rate information;

[0075] The common TA change rate refers to the change rate of the RTT from the UTSRP to the satellite.

[0076] Optionally, obtaining the base station receiving and sending time difference and TA change rate information includes:

[0077] The transceiver receives the base station receiving and sending time difference and the TA change rate information within the validity period sent by the base station.

[0078] Optionally, obtaining the change in the timing advance includes:

[0079] Receiving, by the transceiver, a change in the timing advance sent by the terminal;

[0080] Alternatively, receiving, by the transceiver, a timing change rate and second information of a service link sent by the terminal; the second information includes a second index difference between the first uplink subframe and the third uplink subframe, or the second information includes first index information of the first uplink subframe and third index information of the third uplink subframe, and the first index information and the third index information are used to obtain the second index difference;

[0081] The change amount of the timing advance is obtained according to the timing change rate, the second information, the common TA change rate and the change rate of the common TA change rate.

[0082] Optionally, the operation further includes:

[0083] Receiving, by the transceiver, a rate of change of the timing change rate sent by the terminal;

[0084] The obtaining, according to the timing change rate, the second information, the common TA change rate, and the change rate of the common TA change rate, a change amount of the timing advance includes:

[0085] The change amount of the timing advance is obtained according to the timing change rate, the second information, the common TA change rate, the change rate of the common TA change rate and the change rate of the timing change rate.

[0086] The embodiment of the present application further provides an information processing device, which is a terminal and includes a memory, a transceiver, and a processor:

[0087] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0088] Acquire the terminal receiving and sending time difference, third information and fourth information of the terminal; the third information includes: the duration corresponding to the integer subframe interval between the first uplink subframe of the terminal and the second uplink subframe of the terminal, or the timing change rate of the service link and the first information; the fourth information includes: the change amount of the timing advance, or the timing change rate of the service link and the second information;

[0089] Sending the terminal receiving and sending time difference, the third information and the fourth information to the network device through the transceiver;

[0090] The index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the downlink subframe carrying the positioning reference signal PRS;

[0091] The terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe;

[0092] The change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the timing advance of the first uplink subframe, the index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of the UTSRP, and the third uplink subframe refers to an uplink subframe carrying a sounding reference signal SRS;

[0093] The first information includes a first index difference between the first uplink subframe and the second uplink subframe, or the first information includes first index information of the first uplink subframe and second index information of the second uplink subframe, and the first index information and the second index information are used to obtain the first index difference;

[0094] The second information includes a second index difference between the first uplink subframe and the third uplink subframe, or the second information includes first index information of the first uplink subframe and third index information of the third uplink subframe, and the first index information and the third index information are used to obtain the second index difference.

[0095] Optionally, obtaining the change in the timing advance includes:

[0096] Obtaining, by means of the transceiver, a common TA change rate and a change rate of the common TA change rate from a base station;

[0097] Obtaining a change amount of the timing advance according to the timing change rate, the second information, the common TA change rate, and a change rate of the common TA change rate;

[0098] The common TA change rate refers to the change rate of the RTT from UTSRP to the satellite.

[0099] Optionally, the operation further includes:

[0100] Obtaining a rate of change of the timing change rate;

[0101] The obtaining, according to the timing change rate, the second information, the common TA change rate, and the change rate of the common TA change rate, a change amount of the timing advance includes:

[0102] The change amount of the timing advance is obtained according to the timing change rate, the second information, the common TA change rate, the change rate of the common TA change rate and the change rate of the timing change rate.

[0103] Optionally, when the third information includes the timing change rate and the first information, the third information also includes a change rate of the timing change rate.

[0104] Optionally, obtaining the timing change rate includes:

[0105] Measuring a downlink timing signal to obtain the timing change rate;

[0106] Alternatively, the timing change rate is calculated based on satellite ephemeris information and the location information of the terminal.

[0107] The embodiment of the present application further provides an information processing device, which is applied to a network device, including:

[0108] A first acquisition unit is used to acquire a duration corresponding to an integer subframe interval between a first uplink subframe of a terminal and a second uplink subframe of the terminal, a terminal receiving and sending time difference, a base station receiving and sending time difference, and a change in a timing advance; the change in the timing advance is determined according to a timing change rate of a service link;

[0109] A first determining unit is used to determine a round-trip delay RTT from the terminal to an uplink timing reference point UTSRP according to a duration corresponding to the integer subframe interval, a receiving and sending time difference of the terminal, a receiving and sending time difference of the base station, and a change in the timing advance;

[0110] The index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the downlink subframe carrying the positioning reference signal PRS;

[0111] The terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe;

[0112] The base station receives and sends a time difference that is equal to a time difference between a third uplink subframe and a third downlink subframe of the UTSRP, the index number of the third uplink subframe is the same as the index number of the third downlink subframe, and the third uplink subframe refers to an uplink subframe carrying a sounding reference signal SRS;

[0113] The change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the timing advance of the first uplink subframe, and the index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of the UTSRP.

[0114] Optionally, obtaining the duration corresponding to the integer subframe interval and the terminal receiving and sending time difference includes:

[0115] receiving a duration corresponding to the integer subframe interval sent by the terminal and a time difference between receiving and sending by the terminal;

[0116] Alternatively, receiving the terminal receiving and sending time difference, the timing change rate of the service link and the first information sent by the terminal; the first information includes a first index difference between the first uplink subframe and the second uplink subframe, or the first information includes the first index information of the first uplink subframe and the second index information of the second uplink subframe, and the first index information and the second index information are used to obtain the first index difference;

[0117] A duration corresponding to the integer subframe interval is obtained according to the timing change rate and the first information.

[0118] Optionally, also include:

[0119] A first receiving unit, configured to receive a change rate of the timing change rate sent by the terminal;

[0120] The obtaining, according to the timing change rate and the first information, a duration corresponding to the integer subframe interval includes:

[0121] The duration corresponding to the integer subframe interval is obtained according to the timing change rate, the first information and the change rate of the timing change rate.

[0122] Optionally, also include:

[0123] A second acquisition unit is used to acquire timing advance TA change rate information, wherein the TA change rate information includes: a common TA change rate and at least one of a change rate of the common TA change rate;

[0124] The determining, according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance, a round-trip delay RTT from the terminal to an uplink timing reference point UTSRP includes:

[0125] Determine the RTT from the terminal to UTSRP according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, the change in the timing advance, and the TA change rate information;

[0126] The common TA change rate refers to the change rate of the RTT from the UTSRP to the satellite.

[0127] Optionally, obtaining the base station receiving and sending time difference and TA change rate information includes:

[0128] The base station receiving and sending time difference and TA change rate information within the validity period sent by the receiving base station.

[0129] Optionally, obtaining the change in the timing advance includes:

[0130] receiving a change in the timing advance sent by the terminal;

[0131] Alternatively, receiving a timing change rate and second information of a service link sent by the terminal; the second information includes a second index difference between the first uplink subframe and the third uplink subframe, or the second information includes first index information of the first uplink subframe and third index information of the third uplink subframe, and the first index information and the third index information are used to obtain the second index difference;

[0132] The change amount of the timing advance is obtained according to the timing change rate, the second information, the common TA change rate and the change rate of the common TA change rate.

[0133] Optionally, also include:

[0134] A second receiving unit, configured to receive a change rate of the timing change rate sent by the terminal;

[0135] The obtaining, according to the timing change rate, the second information, the common TA change rate, and the change rate of the common TA change rate, a change amount of the timing advance includes:

[0136] The change amount of the timing advance is obtained according to the timing change rate, the second information, the common TA change rate, the change rate of the common TA change rate and the change rate of the timing change rate.

[0137] The embodiment of the present application further provides an information processing device, applied to a terminal, including:

[0138] a third acquisition unit, configured to acquire a terminal receiving and transmitting time difference, third information, and fourth information of the terminal; the third information comprising: a duration corresponding to an integer subframe interval between a first uplink subframe of the terminal and a second uplink subframe of the terminal, or a timing change rate of a service link and first information; the fourth information comprising: a change in the timing advance, or a timing change rate of the service link and second information;

[0139] A first sending unit, configured to send the terminal receiving and sending time difference, the third information and the fourth information to the network device;

[0140] The index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the downlink subframe carrying the positioning reference signal PRS;

[0141] The terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe;

[0142] The change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the timing advance of the first uplink subframe, the index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of the UTSRP, and the third uplink subframe refers to an uplink subframe carrying a sounding reference signal SRS;

[0143] The first information includes a first index difference between the first uplink subframe and the second uplink subframe, or the first information includes first index information of the first uplink subframe and second index information of the second uplink subframe, and the first index information and the second index information are used to obtain the first index difference;

[0144] The second information includes a second index difference between the first uplink subframe and the third uplink subframe, or the second information includes first index information of the first uplink subframe and third index information of the third uplink subframe, and the first index information and the third index information are used to obtain the second index difference.

[0145] Optionally, obtaining the change in the timing advance includes:

[0146] Obtaining a common TA change rate and a change rate of the common TA change rate from a base station;

[0147] Obtaining a change amount of the timing advance according to the timing change rate, the second information, the common TA change rate, and a change rate of the common TA change rate;

[0148] The common TA change rate refers to the change rate of the RTT from UTSRP to the satellite.

[0149] Optionally, also include:

[0150] A fourth acquisition unit, used to acquire a change rate of the timing change rate;

[0151] The obtaining, according to the timing change rate, the second information, the common TA change rate, and the change rate of the common TA change rate, a change amount of the timing advance includes:

[0152] The change amount of the timing advance is obtained according to the timing change rate, the second information, the common TA change rate, the change rate of the common TA change rate and the change rate of the timing change rate.

[0153] Optionally, when the third information includes the timing change rate and the first information, the third information also includes a change rate of the timing change rate.

[0154] Optionally, obtaining the timing change rate includes:

[0155] Measuring a downlink timing signal to obtain the timing change rate;

[0156] Alternatively, the timing change rate is calculated based on satellite ephemeris information and the location information of the terminal.

[0157] An embodiment of the present application also provides a non-transitory readable storage medium, which stores a computer program, and the computer program is used to enable a processor to execute the above-mentioned method on the network device side or the terminal side.

[0158] The beneficial effects of the above technical solution of the present application are as follows:

[0159] In the above scheme, the information processing method obtains the duration corresponding to the integer subframe interval between the first uplink subframe of the terminal and the second uplink subframe of the terminal, the terminal receiving and sending time difference, the base station receiving and sending time difference and the change in the timing advance; according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference and the change in the timing advance, the round-trip delay RTT from the terminal to the uplink timing reference point UTSRP is determined; wherein the change in the timing advance is determined according to the timing change rate of the service link; the index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the uplink subframe carrying the positioning reference signal PR S's downlink subframe; the terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe; the base station receiving and sending time difference is equal to the time difference between the third uplink subframe and the third downlink subframe of the UTSRP, the index number of the third uplink subframe is the same as the index number of the third downlink subframe, and the third uplink subframe refers to the uplink subframe carrying the sounding reference signal SRS; the change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the timing advance of the first uplink subframe, and the index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of the UTSRP; it can support network equipment to obtain RTT based on the timing change rate of the service link, thereby improving the accuracy of the RTT obtained in the NTN scenario. BRIEF DESCRIPTION OF THE DRAWINGS

[0160] Figure 1 A schematic diagram of the wireless communication system architecture of an embodiment of the present application;

[0161] Figure 2 A schematic diagram of a method for representing UE Rx-Tx measurement parameters in an NTN scenario according to an embodiment of the present application;

[0162] Figure 3The information processing method of the present application is shown in the following figure: Figure 1 ;

[0163] Figure 4 The information processing method of the present application is shown in the following figure: Figure 2 ;

[0164] Figure 5 The structure of the information processing device of the embodiment of the present application is shown as follows: Figure 1 ;

[0165] Figure 6 The structure of the information processing device of the embodiment of the present application is shown as follows: Figure 2 ;

[0166] Figure 7 The structure of the information processing device of the embodiment of the present application is shown as follows: Figure 1 ;

[0167] Figure 8 The structure of the information processing device of the embodiment of the present application is shown as follows: Figure 2 . DETAILED DESCRIPTION

[0168] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0169] In the embodiments of the present application, the term "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0170] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0171] It is explained here that the technical solution provided in the embodiment of the present application can be applicable to a variety of systems, especially 5G systems. For example, the applicable system can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a universal mobile telecommunication system (UMTS), a world-wide interoperability for microwave access (WiMAX) system, a 5G new air interface (NR) system, etc. These various systems include terminal equipment and network equipment. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0172] Figure 1 A block diagram of a wireless communication system applicable to the embodiments of the present application is shown. The wireless communication system includes a terminal device (also referred to as a terminal) and a network device.

[0173] The terminal device involved in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called a user equipment (UE). The wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it can be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and / or data with a wireless access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDA) and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, and a user device, but is not limited in the embodiments of the present application.

[0174] The network device involved in the embodiments of the present application may be a base station, which may include multiple cells providing services for the terminal. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, and serve as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (Global System for Mobile communications, GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device (evolutional Node B, eNB or e-NodeB) in the long-term evolution (long term evolution, LTE) system, a 5G base station (the next Generation Node B, gNB) in the 5G network architecture (next generation system), or a home evolved Node B (Home evolved Node B, HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., which is not limited in the embodiments of the present application. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be arranged geographically separately.

[0175] Network devices and terminal devices can each use one or more antennas for multiple-input multiple-output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoded transmission or beamforming transmission, etc.

[0176] The following first introduces the contents involved in the solution provided in the embodiment of the present application.

[0177] 1) 5G NR;

[0178] In the current 5G NR system, during the Multi-RTT measurement process, since the base station is stationary, the impact of timing changes on RTT is not considered.

[0179] 2) NTN network;

[0180] For NTN scenarios, especially low-orbit satellite scenarios, due to the fast movement of satellites, the signal received by the UE will be affected by Doppler, resulting in the expansion or contraction of the subframe length. Therefore, in this scenario, the impact of timing changes on RTT needs to be considered; however, for the impact of downlink timing drift (timing drift or timing change) on the round-trip time (RTT) of the service link (satellite to UE), there is currently no clear RTT calculation method. In other words, the current standard does not consider the impact of link timing changes on RTT, so the current RTT acquisition solution cannot adapt to NTN scenarios.

[0181] Among them, the service link refers to the link between the satellite and the UE; the feeder link refers to the link between the satellite and the gateway.

[0182] At present, when discussing the topic of UE location verification, in order to follow the definition of UE Rx-Tx parameters and gNB (the next Generation Node B, 5G base station) Rx-Tx parameters in the NR standard as much as possible, the following method is finally chosen to characterize and calculate the RTT from UE to the uplink timing reference point UTSRP or gNB. The following takes UTSRP as an example to introduce this method. Figure 2 As shown in the figure (DL represents downlink and UL represents uplink); according to the above UE Rx-Tx parameter representation method, the RTT between UE and UTSRP is as follows:

[0183] RTT UE-UTSRP =T UE-offset +(T UE-Rx -T UE-Tx )+(T gNB-Rx -T gNB-Tx )+ΔTA;

[0184] Wherein, ΔTA (Timing Advance) is the time difference between TA#1 and TA#i. UE-offset T is the duration corresponding to the integer (subframe) interval from the uplink subframe #i to the uplink subframe #j of the terminal. The uplink subframe #j is the uplink subframe closest to the downlink subframe #i (carrying PRS). UE-Rx -T UE-Tx It is the UE Rx-Tx parameter representation method of NR in the current standard. gNB-Rx -T gNB-Tx It is also the representation method of NR gNB Rx-Tx parameters in the current standard. gNB-Rx -T gNB-Tx correspond Figure 2 The interval between the two dotted lines between UTSRP DL and UTSRP UL. Subframe l is the subframe carrying SRS. TA#i=T UE-offset +(T UE-Rx -T UE-Tx ).

[0185] Based on the above, the embodiments of the present application provide an information processing method, device and equipment to solve the problem of poor RTT accuracy obtained for NTN scenarios in the prior art. Among them, the method, device and equipment are based on the same application concept. Since the principles of solving the problems by the method, device and equipment are similar, the implementation of the method, device and equipment can refer to each other, and the repeated parts will not be repeated.

[0186] The information processing method provided in the embodiment of the present application is applied to a network device, such as Figure 3 As shown, including:

[0187] Step 31: Obtain the duration corresponding to the integer subframe interval between the first uplink subframe of the terminal and the second uplink subframe of the terminal, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in timing advance; the change in timing advance is determined according to the timing change rate of the service link;

[0188] Step 32: Determine the round-trip delay RTT from the terminal to the uplink timing reference point UTSRP according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance; wherein the index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the downlink subframe carrying the positioning reference signal PRS; the terminal receiving and sending time difference refers to the time difference between the first downlink subframe and The time difference between the second uplink subframes; the base station receiving and sending time difference is equal to the time difference between the third uplink subframe and the third downlink subframe of the UTSRP, the index number of the third uplink subframe is the same as the index number of the third downlink subframe, and the third uplink subframe refers to an uplink subframe carrying a sounding reference signal SRS; the change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the timing advance of the first uplink subframe, and the index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of the UTSRP.

[0189] The network device may be a LMF (Location Management Function) or a gNB or other device, which is not limited here. The base station may refer to a gNB, but is not limited thereto.

[0190] The information processing method provided in the embodiment of the present application obtains the duration corresponding to the integer subframe interval between the first uplink subframe of the terminal and the second uplink subframe of the terminal, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance; according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance, the round-trip delay RTT from the terminal to the uplink timing reference point UTSRP is determined; wherein the change in the timing advance is determined according to the timing change rate of the service link; the index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the uplink subframe carrying the positioning reference signal P RS's downlink subframe; the terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe; the base station receiving and sending time difference is equal to the time difference between the third uplink subframe and the third downlink subframe of the UTSRP, the index number of the third uplink subframe is the same as the index number of the third downlink subframe, and the third uplink subframe refers to the uplink subframe carrying the sounding reference signal SRS; the change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the timing advance of the first uplink subframe, and the index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of the UTSRP; it can support network equipment to obtain RTT based on the timing change rate of the service link, thereby improving the accuracy of the RTT obtained in the NTN scenario.

[0191] Among them, obtaining the duration corresponding to the integer subframe interval and the terminal receive and send time difference includes: (1) receiving the duration corresponding to the integer subframe interval and the terminal receive and send time difference sent by the terminal; or, (2) receiving the terminal receive and send time difference, the timing change rate of the service link and the first information sent by the terminal; the first information includes the first index difference between the first uplink subframe and the second uplink subframe, or the first information includes the first index information of the first uplink subframe and the second index information of the second uplink subframe, and the first index information and the second index information are used to obtain the first index difference; according to the timing change rate and the first information, the duration corresponding to the integer subframe interval is obtained.

[0192] In this way, the terminal receiving and sending time difference can be accurately obtained, and the duration corresponding to the integer subframe interval can be directly received or calculated. Among them, the first index difference is the integer subframe interval, and the first index information and the second index information can both be index numbers, but are not limited to this.

[0193] In the embodiment of the present application, the obtaining of the duration corresponding to the integer subframe interval according to the timing change rate and the first information includes: using a first formula to obtain the duration corresponding to the integer subframe interval according to the timing change rate and the first index difference; wherein the first formula is: UE-offset =(1+TimingDriftRate)×n; T UE-offset represents the duration corresponding to the integer subframe interval, TimingDriftRate represents the timing change rate, n represents the first index difference, the unit of n is the time domain length of the subframe, or the granularity of n is the subframe length.

[0194] In this way, the duration corresponding to the integer subframe interval can be accurately obtained. Among them, the first index difference in the first formula can be directly obtained according to the received first information, or calculated according to the first index information and the second index information in the received first information, which is not limited here. In addition, in the case of "the granularity of n is the subframe length", n has the same unit as the subframe length. For example, when the subframe length is 0.5ms, the value of n is n×0.5ms, so this solution can also be applied to scenarios where the subframe length is not 1ms.

[0195] Furthermore, the information processing method also includes: receiving the rate of change of the timing change rate sent by the terminal; obtaining the duration corresponding to the integer subframe interval based on the timing change rate and the first information, including: obtaining the duration corresponding to the integer subframe interval based on the timing change rate, the first information and the rate of change of the timing change rate.

[0196] In this way, the accuracy of the duration corresponding to the integer subframe interval can be further improved, thereby improving the accuracy of the RTT.

[0197] Wherein, obtaining the duration corresponding to the integer subframe interval according to the timing change rate, the first information, and the change rate of the timing change rate includes: using a second formula to obtain the duration corresponding to the integer subframe interval according to the timing change rate, the first index difference, and the change rate of the timing change rate; wherein the second formula is: T UE-offset =(1+TimingDriftRate)×n+TimingDriftRateVariation×n 2 ; TimingDriftRateVariation represents the rate of change of the timing variation rate.

[0198] In this way, the duration corresponding to the integer subframe interval can be accurately obtained. The first index difference in the second formula can be directly obtained according to the received first information, or calculated according to the first index information and the second index information in the received first information, which is not limited here. The meaning of the parameters in the second formula can refer to the relevant explanation content of the first formula.

[0199] Furthermore, the information processing method also includes: obtaining timing advance TA change rate information, the TA change rate information including: a common TA change rate, and at least one of the change rates of the common TA change rate; determining the round-trip delay RTT from the terminal to the uplink timing reference point UTSRP according to the duration corresponding to the integer subframe interval, the terminal receive and send time difference, the base station receive and send time difference, and the change in the timing advance, including: determining the RTT from the terminal to UTSRP according to the duration corresponding to the integer subframe interval, the terminal receive and send time difference, the base station receive and send time difference, the change in the timing advance, and the TA change rate information; wherein the common TA change rate refers to the change rate of the RTT from the UTSRP to the satellite.

[0200] This can further improve the accuracy of RTT.

[0201] The step of obtaining the base station receiving and sending time difference and TA change rate information includes: receiving the base station receiving and sending time difference and TA change rate information within a validity period sent by a base station.

[0202] In this way, the base station receiving and sending time difference and TA change rate information can be accurately obtained. Wherein, the receiving base station receiving and sending time difference and TA change rate information within the validity period sent by the base station may include: when the network device is not a base station (that is, the network device is a device other than a base station), the receiving base station receiving and sending time difference and TA change rate information within the validity period sent by the base station, but is not limited thereto.

[0203] In an embodiment of the present application, obtaining the change in the timing advance includes: (1) receiving the change in the timing advance sent by the terminal; or (2) receiving the timing change rate and second information of the service link sent by the terminal; the second information includes the second index difference between the first uplink subframe and the third uplink subframe, or the second information includes the first index information of the first uplink subframe and the third index information of the third uplink subframe, and the first index information and the third index information are used to obtain the second index difference; the change in the timing advance is obtained according to the timing change rate, the second information, the common TA change rate and the change rate of the common TA change rate.

[0204] In this way, the change amount of the timing advance can be obtained in multiple ways. Wherein, the first index information and the third index information can both be index numbers, but are not limited thereto.

[0205] The obtaining of the change amount of the timing advance according to the timing change rate, the second information, the common TA change rate, and the change rate of the common TA change rate comprises: obtaining the change amount of the timing advance according to the timing change rate, the second index difference, the common TA change rate, and the change rate of the common TA change rate using a third formula; wherein the third formula is: ΔTA=(TimingDriftRate+TACommonDrift)×(li)+B; B=TACommonDriftVariation×(li) 2 ; ΔTA represents the change of the timing advance, TimingDriftRate represents the timing change rate, TACommonDrift represents the common TA change rate, li represents the second index difference, l represents the third index number of the third uplink subframe, i represents the first index number of the first uplink subframe, TACommonDriftVariation represents the change rate of the common TA change rate; the unit of li is the time domain length of the subframe, or the granularity of li is the subframe length.

[0206] In this way, the change in the timing advance can be accurately obtained. Among them, the second index difference in the third formula can be directly obtained according to the received second information, or calculated according to the first index information and the third index information in the received second information, which is not limited here. In addition, in the case of "the granularity of li is the subframe length", li has the same unit as the subframe length. For example, when the subframe length is 0.5ms, the value of li is (li)×0.5ms, so this solution can also be applied to scenarios where the subframe length is not 1ms.

[0207] Furthermore, the information processing method also includes: receiving the rate of change of the timing change rate sent by the terminal; obtaining the change of the timing advance amount according to the timing change rate, the second information, the public TA change rate and the rate of change of the public TA change rate, including: obtaining the change of the timing advance amount according to the timing change rate, the second information, the public TA change rate, the rate of change of the public TA change rate and the rate of change of the timing change rate.

[0208] In this way, the change in the timing advance can be obtained more accurately.

[0209] The obtaining of the change in the timing advance according to the timing change rate, the second information, the common TA change rate, the change rate of the common TA change rate, and the change rate of the timing change rate comprises: obtaining the change in the timing advance according to the timing change rate, the second index difference, the common TA change rate, the change rate of the common TA change rate, and the change rate of the timing change rate using a fourth formula; wherein the fourth formula is: ΔTA=(TimingDriftRate+TACommonDrift)×(li)+B+C; C=(TimingDriftRateVariation)×(li) 2 ; TimingDriftRateVariation represents the rate of change of the timing variation rate.

[0210] In this way, the change in the timing advance can be accurately obtained. The second index difference in the fourth formula can be directly obtained according to the received second information, or calculated according to the first index information and the third index information in the received second information, which is not limited here. The meaning of the parameters in the fourth formula can refer to the relevant explanation content of the third formula.

[0211] In an embodiment of the present application, the determining of the RTT from the terminal to UTSRP according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, the change in the timing advance, and the TA change rate information includes: using the fifth formula, according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, the change in the timing advance, the common TA change rate, and the change rate of the common TA change rate, determining the RTT from the terminal to UTSRP; wherein the fifth formula is:

[0212] RTT UE-UTSRP =(T UE-Rx -T UE-Tx )+(T gNB-Rx -T gNB-Tx )+D+E+F;

[0213] D=(1+TimingDriftRate)×(ji);

[0214] E=(TimingDriftRate+TACommonDrift)×(li);

[0215] F=TACommonDriftVariation×(li) 2 ;

[0216] RTTUE-UTSRP Indicates the RTT from the terminal to UTSRP, T UE-Rx -T UE-Tx Indicates the time difference between the receiving and sending of the terminal, T gNB-Rx -T gNB-Tx represents the time difference between the base station receiving and sending, D represents the duration corresponding to the integer subframe interval, TimingDriftRate represents the timing change rate of the service link, j represents the second index number of the second uplink subframe, i represents the first index number of the first uplink subframe, E+F represents the change of the timing advance, TACommonDrift represents the common TA change rate, l represents the third index number of the third uplink subframe, TACommonDriftVariation represents the change rate of the common TA change rate; the unit of ji is the time domain length of the subframe, and the unit of li is the time domain length of the subframe, or the granularity of ji is the subframe length, and the granularity of li is the subframe length.

[0217] In this way, the RTT from the terminal to UTSRP can be accurately obtained. Among them, for the case where "the granularity of ji is the subframe length, and the granularity of li is the subframe length", (ji) and (li) are both integers in value, and the unit is the length of a subframe. For example, if the subframe length is 0.5ms, then the unit of (ji) and (li) is 0.5ms, and the value of (ji) is (ji)×0.5ms, and the value of (ji) is (ji)×0.5ms. In this way, this solution can also be applied to scenarios where the subframe length is not 1ms.

[0218] The present application also provides an information processing method, which is applied to a terminal, such as Figure 4 As shown, including:

[0219] Step 41: obtaining the terminal receiving and sending time difference, third information and fourth information of the terminal; the third information includes: the duration corresponding to the integer subframe interval between the first uplink subframe of the terminal and the second uplink subframe of the terminal, or the timing change rate of the service link and the first information; the fourth information includes: the change amount of the timing advance, or the timing change rate of the service link and the second information;

[0220] Step 42: Send the terminal receiving and sending time difference, the third information and the fourth information to the network device; wherein, the index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the downlink subframe carrying the positioning reference signal PRS; the terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe; the change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the timing advance of the first uplink subframe, and the index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of UTSRP , the third uplink subframe refers to an uplink subframe carrying a sounding reference signal SRS; the first information includes a first index difference between the first uplink subframe and the second uplink subframe, or the first information includes the first index information of the first uplink subframe and the second index information of the second uplink subframe, and the first index information and the second index information are used to obtain the first index difference; the second information includes the second index difference between the first uplink subframe and the third uplink subframe, or the second information includes the first index information of the first uplink subframe and the third index information of the third uplink subframe, and the first index information and the third index information are used to obtain the second index difference.

[0221] Among them, the duration corresponding to the integer subframe interval is determined according to the timing change rate of the service link (or is directly measured by the terminal based on the timing change rate of the service link), and / or the change in the timing advance is determined according to the timing change rate of the service link; the first index difference is the integer subframe interval, and the first index information, the second index information and the third index information can all be index numbers, but are not limited to this.

[0222] The information processing method provided in the embodiment of the present application obtains the terminal receiving and sending time difference, third information and fourth information of the terminal; sends the terminal receiving and sending time difference, third information and fourth information to the network device; the third information includes: the duration corresponding to the integer subframe interval between the first uplink subframe of the terminal and the second uplink subframe of the terminal, or the timing change rate of the service link and the first information; the fourth information includes: the change in the timing advance, or the timing change rate of the service link and the second information; wherein the index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the downlink subframe carrying the positioning reference signal PRS; the terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe; the change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the first uplink subframe The index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of UTSRP, and the third uplink subframe refers to an uplink subframe carrying a sounding reference signal SRS; the first information includes a first index difference between the first uplink subframe and the second uplink subframe, or the first information includes the first index information of the first uplink subframe and the second index information of the second uplink subframe, and the first index information and the second index information are used to obtain the first index difference; the second information includes the second index difference between the first uplink subframe and the third uplink subframe, or the second information includes the first index information of the first uplink subframe and the third index information of the third uplink subframe, and the first index information and the third index information are used to obtain the second index difference; it can support network equipment to obtain RTT based on the timing change rate of the service link, thereby improving the accuracy of the RTT obtained in the NTN scenario.

[0223] Among them, obtaining the change in the timing advance includes: obtaining a common TA change rate and a change rate of the common TA change rate from a base station; obtaining the change in the timing advance according to the timing change rate, the second information, the common TA change rate and the change rate of the common TA change rate; wherein the common TA change rate refers to the change rate of RTT from UTSRP to the satellite.

[0224] In this way, the change amount of the timing advance can be accurately obtained. The base station can be a specific implementation of the network device, that is, the network device can be a base station, and the terminal can obtain the public TA change rate and the change rate of the public TA change rate from the network device, but is not limited to this.

[0225] In an embodiment of the present application, obtaining the change amount of the timing advance according to the timing change rate, the second information, the common TA change rate, and the change rate of the common TA change rate includes: using a third formula to obtain the change amount of the timing advance according to the timing change rate, the second index difference, the common TA change rate, and the change rate of the common TA change rate; wherein the third formula is: ΔTA=(TimingDriftRate+TACommonDrift)×(li)+B; B=TACommonDriftVariation×(li) 2 ; ΔTA represents the change of the timing advance, TimingDriftRate represents the timing change rate, TACommonDrift represents the common TA change rate, li represents the second index difference, l represents the third index number of the third uplink subframe, i represents the first index number of the first uplink subframe, TACommonDriftVariation represents the change rate of the common TA change rate; the unit of li is the time domain length of the subframe, or the granularity of li is the subframe length.

[0226] In this way, the change in the timing advance can be accurately obtained. Among them, the second index difference in the third formula can be directly obtained according to the second information, or calculated according to the first index information and the third index information in the second information, which is not limited here. In addition, in the case of "the granularity of li is the subframe length", li has the same unit as the subframe length. For example, when the subframe length is 0.5ms, the value of li is (li)×0.5ms, so this solution can also be applied to scenarios where the subframe length is not 1ms.

[0227] Furthermore, the information processing method also includes: obtaining the rate of change of the timing change rate; obtaining the change of the timing advance amount according to the timing change rate, the second information, the common TA change rate and the rate of change of the common TA change rate, including: obtaining the change of the timing advance amount according to the timing change rate, the second information, the common TA change rate, the rate of change of the common TA change rate and the rate of change of the timing change rate.

[0228] In this way, the change in the timing advance can be obtained more accurately.

[0229] The obtaining of the change in the timing advance according to the timing change rate, the second information, the common TA change rate, the change rate of the common TA change rate, and the change rate of the timing change rate comprises: obtaining the change in the timing advance according to the timing change rate, the second index difference, the common TA change rate, the change rate of the common TA change rate, and the change rate of the timing change rate using a fourth formula; wherein the fourth formula is: ΔTA=(TimingDriftRate+TACommonDrift)×(li)+B+C; C=(TimingDriftRateVariation)×(li) 2 ; TimingDriftRateVariation represents the rate of change of the timing variation rate.

[0230] In this way, the change in the timing advance can be accurately obtained. The second index difference in the fourth formula can be directly obtained according to the second information, or calculated according to the first index information and the third index information in the second information, which is not limited here. The meaning of the parameters in the fourth formula can refer to the relevant explanation content of the third formula.

[0231] In the embodiment of the present application, when the third information includes the timing change rate and the first information, the third information also includes the change rate of the timing change rate.

[0232] This allows the network device to perform relevant calculations based on the rate of change of the timing change rate.

[0233] Wherein, obtaining the timing change rate includes: measuring a downlink timing signal to obtain the timing change rate; or calculating the timing change rate according to satellite ephemeris information and the location information of the terminal.

[0234] In this way, the timing change rate can be accurately obtained. The location information of the terminal may be Global Navigation Satellite System (GNSS) data or carried in GNSS data or include GNSS data, which is not limited here.

[0235] The information processing method provided in the embodiment of the present application is illustrated below by taking the location management function (LMF) of a network device as an example.

[0236] In response to the above technical problems, the embodiment of the present application provides an information processing method, which can be specifically implemented as a round-trip time (RTT) calculation method including a timing change rate. Specifically, it proposes a solution for RTT calculation of the Multi-RTT positioning method in the NTN scenario, involving: taking into account the timing change factors of the service link and the feeder link (that is, considering the impact of the timing change of the service link and the timing change of the feeder link on the RTT), providing a method for calculating the RTT, and improving the accuracy of the RTT. Among them, this solution involves network-side behavior and terminal-side behavior, which can be specifically as follows:

[0237] (1) Network-side behavior, including:

[0238] 1) The Location Management Function (LMF) receives valid, unexpired parameters such as TA common (i.e., common TA, indicating the RTT from UTSRP to the satellite), TA common Drift (i.e., common TA change rate, indicating the rate of change of the RTT from UTSRP to the satellite) and TA common Drift Variation (i.e., the rate of change of the common TA change rate, indicating the rate of change of the RTT from UTSRP to the satellite) from the gNB (base station); corresponding to the TA change rate information within the validity period sent by the above-mentioned receiving base station.

[0239] 2) The duration T corresponding to the integer (subframe) interval from uplink subframe #i to uplink subframe #j received by LMF from UE UE-offset ,(T UE-Rx -T UE-Tx ), TimingDriftRate and other parameters, corresponding to the duration corresponding to the integer subframe interval sent by the terminal received by the above-mentioned network device, the time difference between the terminal receiving and sending, and the timing change rate of the service link; wherein TimingDriftRate represents the downlink timing change rate of the service link (i.e., the timing change rate of the service link); the uplink subframe #i corresponds to the downlink subframe #i (including the downlink PRS (Positioning Reference Signal)), the uplink subframe #j is the one closest to the downlink subframe #i, the uplink subframe #i corresponds to the above-mentioned first uplink subframe, the uplink subframe #j corresponds to the above-mentioned second uplink subframe, and the downlink subframe #i corresponds to the above-mentioned first downlink subframe; wherein, T UE-Rx -T UE-Tx It represents the UERx (receive) -Tx (transmit) time difference, corresponding to the above-mentioned terminal receive and transmit time difference.

[0240] 3)LMF calculates the RTT between UE and UTSRP based on the received information: RTTUE-UTSRP Corresponding to the above-mentioned duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, the change in the timing advance amount and the TA change rate information, the RTT from the terminal to UTSRP is determined.

[0241] (2) Terminal-side behavior, including:

[0242] 1) The UE measures the duration T corresponding to the interval between uplink subframe #i and uplink subframe #j UE-offset , that is, the duration corresponding to an integer multiple of the number of subframes, where the uplink subframe #j is the one closest to the downlink subframe #i (including the downlink PRS (Positioning Reference Signal) signal).

[0243] 2) UE measures the time difference between downlink subframe #i and uplink subframe #j and obtains T UE--x -T UE-Tx .

[0244] 3) UE sends parameters to LMF, including: reporting T UE-offset or reporting uplink subframe #j index and uplink subframe #i index; and reporting (T UE-Rx -T UE-Tx ), TimingDriftRate; and reporting the interval between uplink subframe #1 (including SRS (Sounding Reference Signal--sounding reference signal) signal) and uplink subframe #i or subframe #j, or reporting the index of uplink subframe #1; corresponding to the above-mentioned sending of the terminal receiving and sending time difference, the third information and the fourth information to the network device. Among them, uplink subframe #1 (corresponding to the above-mentioned third uplink subframe) is the subframe in which the UE sends the SRS signal. The purpose of reporting is to enable the network side to obtain the interval (li) from uplink subframe #i to uplink subframe #1. This interval will be affected by the timing change rate and will affect the accuracy of the final measurement amount.

[0245] Based on the above, this plan specifically includes:

[0246] (1) A RTT calculation method based on service link timing variation and feeder link timing variation;

[0247] (2) A UE Rx-Tx time difference T based on service link timing changes UE-offset Calculation method;

[0248] (3) A method for calculating the TA difference (corresponding to the change in the timing advance) between two different uplink subframes.

[0249] The following is a specific example to illustrate this solution.

[0250] 1) Calculate T UE-offset Methods;

[0251] Currently, the UE reports the difference between the uplink subframe #j index and the uplink subframe #i index, which is an integer multiple of the number of subframes. Due to the influence of satellite motion, the length of the subframe changes and is no longer 1ms long. Therefore, it is necessary to consider the impact of the timing change rate on this parameter. The specific calculation method is as follows:

[0252] T UE-offset =(1+TimingDriftRate)×n;

[0253] Wherein, n=ji is the index difference between uplink subframe #i and uplink subframe #j (corresponding to the first index difference, ie, an integer subframe interval); TimingDriftRate is the timing change rate of the service link.

[0254] 2) Calculation method of ΔTA (corresponding to the change in the timing advance amount mentioned above);

[0255] ΔTA refers to the difference between the timing advance of uplink subframe #1 and the timing advance of uplink subframe #i, and the change corresponding to the above timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the timing advance of the first uplink subframe. Specifically:

[0256] △TA=TA#l-TA#i;

[0257] TA#l and TA#i can be expressed as:

[0258] TA#l=TA#l UEspecific +TA#l common ;

[0259] TA#i=TA#i UEspecific +TA#i common ;

[0260] Among them, TA#l UEspecific Indicates the TA of the service link, TA#l common is the TA of the feeder link.

[0261] Based on the above, △TA can be expressed as:

[0262] ΔTA=TA#l-TA#i

[0263] =(TA#l UEspecific -TA#i UEspecific )+(TA#l common -TA#i common );

[0264] Among them:

[0265] TA#l UEspecific -TA#i UEspecific =TimingDriftRate×(li);

[0266] TA#l common -TA#i common =TACommonDrift×(li)+TACommonDriftVariation×(li) 2 ;

[0267] In summary, we can get:

[0268] ΔTA=(TimingDriftRate+TACommonDrift)×(li)+TACommonDriftVariation×(li) 2 ;

[0269] From the above formula, it can be seen that the value of △TA is related to TimingDriftRate, TACommonDrift, TACommonDriftVariation and the interval between uplink subframe #l and uplink subframe #i; corresponding to the above-mentioned change rate of the timing, the second index difference, the common TA change rate and the rate of change of the common TA change rate, the change amount of the timing advance is obtained.

[0270] 3)RTT UE-UTSRP Calculation method;

[0271] According to △TA and T UE-offset Calculate the final RTT (i.e., the RTT between UE and UTSRP) and get the following form:

[0272] RTT UE-UTSRO =(T UE-Rx -T UE-Tx )+(T gNB-Rx -T gNB-Tx )+(1+TimingDriftRate)×(ji)+(TimingDriftRate+TACommonDrift)×(li)+TACommonDriftVariation×(li) 2 ;

[0273] Among them, T gNB-Rx -T gNB-Tx Represents the gNB Rx-Tx time difference, corresponding to the above-mentioned base station receive and transmit time difference.

[0274] From the above, RTT UE-UTSRP The value of is related to the service link timing change, the feeder link timing change (corresponding to "the common TA change rate and the rate of change of the common TA change rate") and the subframe index interval; corresponding to the above-mentioned duration corresponding to the integer subframe interval, the terminal receive and send time difference, the base station receive and send time difference, the change in the timing advance, the common TA change rate and the rate of change of the common TA change rate, the RTT from the terminal to UTSRP is determined.

[0275] In addition, the above RTT calculation is an example involving TAcommonDrift, TAcommonDriftVariation and TimingDriftRate. In this solution, the RTT calculation may also only involve TimingDriftRate, or TimingDriftRate and TACommonDrift, for example:

[0276] (1) If only TimingDriftRate is involved, the following formula can be used to calculate RTT:

[0277] RTT UE-UTSRP =(T UE-Rx -T UE-Tx )+(T gNB-Rx -T gNB-Tx )+(1+TimingDriftRate)×(ji)+ΔTA;

[0278] Alternatively, the RTT can be calculated using the following formula:

[0279] RTT UE-UTSRP =(T UE-Rx -T UE-Tx )+(T gNB-Rx -T gNB-Tx )+(1+TimingDriftRate)×(ji)+(TimingDriftRate)×(li);

[0280] (2) If TimingDriftRate and TACommonDrift are involved, the following formula can be used to calculate RTT:

[0281] RTT UE-UTSRP =(T UE-Rx -T UE-Tx )+(T gNB-Rx -T gNB-Tx )+(1+TimingDriftRate)×(ji)+(TimingDriftRate+TACommonDrift)×(li);

[0282] Of course, it is also possible to only involve other parameter information. Please refer to the above examples for operation, which will not be repeated here.

[0283] Based on the above, this solution proposes a solution to the problem that satellite motion affects UE Rx-Tx measurement: the service link timing change rate is used to measure the T value of UE Rx-Tx measurement. UE-offset Calculation correction is performed, and the RTT is calculated using the timing change rate of the service link and the feeder link to improve the accuracy of the RTT.

[0284] It is noted here that the formulas in the embodiments of the present application are only examples, and other calculation formulas that meet the concept of the present solution are not excluded. That is, of course, other formulas based on the above-mentioned information can also be used to implement the present solution, which is not limited here.

[0285] The present application also provides an information processing device, which is a network device, such as Figure 5 As shown, it includes a memory 51, a transceiver 52, and a processor 53:

[0286] The memory 51 is used to store computer programs; the transceiver 52 is used to send and receive data under the control of the processor 53; the processor 53 is used to read the computer program in the memory 51 and perform the following operations:

[0287] Obtaining the duration corresponding to the integer subframe interval between the first uplink subframe of the terminal and the second uplink subframe of the terminal, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance; the change in the timing advance is determined according to the timing change rate of the service link;

[0288] Determine a round-trip delay RTT from the terminal to an uplink timing reference point UTSRP according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance;

[0289] The index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the downlink subframe carrying the positioning reference signal PRS;

[0290] The terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe;

[0291] The base station receives and sends a time difference that is equal to a time difference between a third uplink subframe and a third downlink subframe of the UTSRP, the index number of the third uplink subframe is the same as the index number of the third downlink subframe, and the third uplink subframe refers to an uplink subframe carrying a sounding reference signal SRS;

[0292] The change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the timing advance of the first uplink subframe, and the index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of the UTSRP.

[0293] The information processing device provided in the embodiment of the present application obtains the duration corresponding to the integer subframe interval between the first uplink subframe of the terminal and the second uplink subframe of the terminal, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance; according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance, determines the round-trip delay RTT from the terminal to the uplink timing reference point UTSRP; wherein the change in the timing advance is determined according to the timing change rate of the service link; the index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the uplink subframe carrying the positioning reference signal P RS's downlink subframe; the terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe; the base station receiving and sending time difference is equal to the time difference between the third uplink subframe and the third downlink subframe of the UTSRP, the index number of the third uplink subframe is the same as the index number of the third downlink subframe, and the third uplink subframe refers to the uplink subframe carrying the sounding reference signal SRS; the change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the timing advance of the first uplink subframe, and the index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of the UTSRP; it can support network equipment to obtain RTT based on the timing change rate of the service link, thereby improving the accuracy of the RTT obtained in the NTN scenario.

[0294] Specifically, the transceiver 52 is used to receive and send data under the control of the processor 53.

[0295] Among them, Figure 5In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 53 and various circuits of memory represented by memory 51 are linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 52 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which transmission medium may include a wireless channel, a wired channel, an optical cable, and other transmission media. The processor 53 is responsible for managing the bus architecture and general processing, and the memory 51 may store data used by the processor 53 when performing operations.

[0296] The processor 53 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0297] Among them, obtaining the duration corresponding to the integer subframe interval and the terminal receive and send time difference includes: (1) receiving the duration corresponding to the integer subframe interval and the terminal receive and send time difference sent by the terminal through the transceiver; or, (2) receiving the terminal receive and send time difference, the timing change rate of the service link and the first information sent by the terminal through the transceiver; the first information includes the first index difference between the first uplink subframe and the second uplink subframe, or the first information includes the first index information of the first uplink subframe and the second index information of the second uplink subframe, and the first index information and the second index information are used to obtain the first index difference; according to the timing change rate and the first information, the duration corresponding to the integer subframe interval is obtained.

[0298] Furthermore, the operation also includes: receiving the rate of change of the timing change rate sent by the terminal through the transceiver; obtaining the duration corresponding to the integer subframe interval based on the timing change rate and the first information, including: obtaining the duration corresponding to the integer subframe interval based on the timing change rate, the first information and the rate of change of the timing change rate.

[0299] In an embodiment of the present application, the operation also includes: obtaining timing advance TA change rate information, the TA change rate information including: a common TA change rate, and at least one of the change rates of the common TA change rate; determining the round-trip delay RTT from the terminal to the uplink timing reference point UTSRP according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance, including: determining the RTT from the terminal to UTSRP according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, the change in the timing advance, and the TA change rate information; wherein the common TA change rate refers to the change rate of the RTT from the UTSRP to the satellite.

[0300] The step of obtaining the base station receiving and transmitting time difference and TA change rate information includes: receiving, by the transceiver, the base station receiving and transmitting time difference and the TA change rate information within a validity period sent by the base station.

[0301] In an embodiment of the present application, obtaining the change in the timing advance includes: (1) receiving, through the transceiver, the change in the timing advance sent by the terminal; or, (2) receiving, through the transceiver, the timing change rate and second information of the service link sent by the terminal; the second information includes the second index difference between the first uplink subframe and the third uplink subframe, or the second information includes the first index information of the first uplink subframe and the third index information of the third uplink subframe, and the first index information and the third index information are used to obtain the second index difference; the change in the timing advance is obtained according to the timing change rate, the second information, the common TA change rate and the change rate of the common TA change rate.

[0302] Furthermore, the operation also includes: receiving the change rate of the timing change rate sent by the terminal through the transceiver; obtaining the change amount of the timing advance according to the timing change rate, the second information, the common TA change rate and the change rate of the common TA change rate, including: obtaining the change amount of the timing advance according to the timing change rate, the second information, the common TA change rate, the change rate of the common TA change rate and the change rate of the timing change rate.

[0303] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned network device side method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0304] The present application also provides an information processing device, which is a terminal. Figure 6 As shown, it includes a memory 61, a transceiver 62, and a processor 63:

[0305] The memory 61 is used to store computer programs; the transceiver 62 is used to send and receive data under the control of the processor 63; the processor 63 is used to read the computer program in the memory 61 and perform the following operations:

[0306] Acquire the terminal receiving and sending time difference, third information and fourth information of the terminal; the third information includes: the duration corresponding to the integer subframe interval between the first uplink subframe of the terminal and the second uplink subframe of the terminal, or the timing change rate of the service link and the first information; the fourth information includes: the change amount of the timing advance, or the timing change rate of the service link and the second information;

[0307] Sending the terminal receiving and sending time difference, the third information and the fourth information to the network device through the transceiver 62;

[0308] The index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the downlink subframe carrying the positioning reference signal PRS;

[0309] The terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe;

[0310] The change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the timing advance of the first uplink subframe, the index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of the UTSRP, and the third uplink subframe refers to an uplink subframe carrying a sounding reference signal SRS;

[0311] The first information includes a first index difference between the first uplink subframe and the second uplink subframe, or the first information includes first index information of the first uplink subframe and second index information of the second uplink subframe, and the first index information and the second index information are used to obtain the first index difference;

[0312] The second information includes a second index difference between the first uplink subframe and the third uplink subframe, or the second information includes first index information of the first uplink subframe and third index information of the third uplink subframe, and the first index information and the third index information are used to obtain the second index difference.

[0313] The information processing device provided in the embodiment of the present application obtains the terminal receiving and sending time difference, third information and fourth information of the terminal; sends the terminal receiving and sending time difference, third information and fourth information to the network device; the third information includes: the duration corresponding to the integer subframe interval between the first uplink subframe of the terminal and the second uplink subframe of the terminal, or the timing change rate of the service link and the first information; the fourth information includes: the change in the timing advance, or the timing change rate of the service link and the second information; wherein the index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the downlink subframe carrying the positioning reference signal PRS; the terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe; the change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the first uplink subframe The index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of UTSRP, and the third uplink subframe refers to an uplink subframe carrying a sounding reference signal SRS; the first information includes a first index difference between the first uplink subframe and the second uplink subframe, or the first information includes the first index information of the first uplink subframe and the second index information of the second uplink subframe, and the first index information and the second index information are used to obtain the first index difference; the second information includes the second index difference between the first uplink subframe and the third uplink subframe, or the second information includes the first index information of the first uplink subframe and the third index information of the third uplink subframe, and the first index information and the third index information are used to obtain the second index difference; it can support network equipment to obtain RTT based on the timing change rate of the service link, thereby improving the accuracy of the RTT obtained in the NTN scenario.

[0314] Specifically, the transceiver 62 is used to receive and send data under the control of the processor 63.

[0315] Among them, Figure 6In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 63 and various circuits of memory represented by memory 61 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 62 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, including wireless channels, wired channels, optical cables, and other transmission media. For different user devices, the user interface 64 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0316] The processor 63 is responsible for managing the bus architecture and general processing, and the memory 61 can store data used by the processor 63 when performing operations.

[0317] Optionally, the processor 63 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD), and the processor may also adopt a multi-core architecture.

[0318] The processor calls the computer program stored in the memory to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0319] Among them, obtaining the change in the timing advance includes: obtaining a common TA change rate and a change rate of the common TA change rate from a base station through the transceiver; obtaining the change in the timing advance according to the timing change rate, the second information, the common TA change rate and the change rate of the common TA change rate; wherein the common TA change rate refers to the change rate of RTT from UTSRP to the satellite.

[0320] Further, the operation also includes: obtaining the rate of change of the timing change rate; obtaining the change of the timing advance amount according to the timing change rate, the second information, the common TA change rate and the rate of change of the common TA change rate, including: obtaining the change of the timing advance amount according to the timing change rate, the second information, the common TA change rate, the rate of change of the common TA change rate and the rate of change of the timing change rate.

[0321] Wherein, in a case where the third information includes the timing change rate and the first information, the third information also includes a change rate of the timing change rate.

[0322] In an embodiment of the present application, obtaining the timing change rate includes: measuring a downlink timing signal to obtain the timing change rate; or calculating the timing change rate based on satellite ephemeris information and the location information of the terminal.

[0323] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned terminal side method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0324] The present application also provides an information processing device, which is applied to a network device, such as Figure 7 As shown, including:

[0325] A first acquisition unit 71 is used to acquire a duration corresponding to an integer subframe interval between a first uplink subframe of a terminal and a second uplink subframe of the terminal, a terminal receiving and sending time difference, a base station receiving and sending time difference, and a change in a timing advance; the change in the timing advance is determined according to a timing change rate of a service link;

[0326] A first determining unit 72 is configured to determine a round trip delay RTT from the terminal to an uplink timing reference point UTSRP according to a duration corresponding to the integer subframe interval, a receiving and sending time difference of the terminal, a receiving and sending time difference of the base station, and a change in the timing advance;

[0327] The index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the downlink subframe carrying the positioning reference signal PRS;

[0328] The terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe;

[0329] The base station receives and sends a time difference that is equal to a time difference between a third uplink subframe and a third downlink subframe of the UTSRP, the index number of the third uplink subframe is the same as the index number of the third downlink subframe, and the third uplink subframe refers to an uplink subframe carrying a sounding reference signal SRS;

[0330] The change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the timing advance of the first uplink subframe, and the index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of the UTSRP.

[0331] The information processing device provided in the embodiment of the present application obtains the duration corresponding to the integer subframe interval between the first uplink subframe of the terminal and the second uplink subframe of the terminal, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance; according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance, determines the round-trip delay RTT from the terminal to the uplink timing reference point UTSRP; wherein the change in the timing advance is determined according to the timing change rate of the service link; the index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the uplink subframe carrying the positioning reference signal P RS's downlink subframe; the terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe; the base station receiving and sending time difference is equal to the time difference between the third uplink subframe and the third downlink subframe of the UTSRP, the index number of the third uplink subframe is the same as the index number of the third downlink subframe, and the third uplink subframe refers to the uplink subframe carrying the sounding reference signal SRS; the change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the timing advance of the first uplink subframe, and the index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of the UTSRP; it can support network equipment to obtain RTT based on the timing change rate of the service link, thereby improving the accuracy of the RTT obtained in the NTN scenario.

[0332] Among them, obtaining the duration corresponding to the integer subframe interval and the terminal receive and send time difference includes: (1) receiving the duration corresponding to the integer subframe interval and the terminal receive and send time difference sent by the terminal; or, (2) receiving the terminal receive and send time difference, the timing change rate of the service link and the first information sent by the terminal; the first information includes the first index difference between the first uplink subframe and the second uplink subframe, or the first information includes the first index information of the first uplink subframe and the second index information of the second uplink subframe, and the first index information and the second index information are used to obtain the first index difference; according to the timing change rate and the first information, the duration corresponding to the integer subframe interval is obtained.

[0333] Furthermore, the information processing device also includes: a first receiving unit, used to receive the change rate of the timing change rate sent by the terminal; obtaining the duration corresponding to the integer subframe interval based on the timing change rate and the first information includes: obtaining the duration corresponding to the integer subframe interval based on the timing change rate, the first information and the change rate of the timing change rate.

[0334] In an embodiment of the present application, the information processing device further includes: a second acquisition unit, used to acquire timing advance TA change rate information, the TA change rate information including: a common TA change rate, and at least one of the change rates of the common TA change rate; the round-trip delay RTT from the terminal to the uplink timing reference point UTSRP is determined according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance, including: determining the RTT from the terminal to UTSRP according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, the change in the timing advance, and the TA change rate information; wherein the common TA change rate refers to the change rate of the RTT from the UTSRP to the satellite.

[0335] The step of obtaining the base station receiving and sending time difference and TA change rate information includes: receiving the base station receiving and sending time difference and TA change rate information within a validity period sent by a base station.

[0336] In an embodiment of the present application, obtaining the change in the timing advance includes: (1) receiving the change in the timing advance sent by the terminal; or (2) receiving the timing change rate and second information of the service link sent by the terminal; the second information includes the second index difference between the first uplink subframe and the third uplink subframe, or the second information includes the first index information of the first uplink subframe and the third index information of the third uplink subframe, and the first index information and the third index information are used to obtain the second index difference; the change in the timing advance is obtained according to the timing change rate, the second information, the common TA change rate and the change rate of the common TA change rate.

[0337] Furthermore, the information processing device also includes: a second receiving unit, used to receive the change rate of the timing change rate sent by the terminal; the change amount of the timing advance is obtained according to the timing change rate, the second information, the common TA change rate and the change rate of the common TA change rate, including: the change amount of the timing advance is obtained according to the timing change rate, the second information, the common TA change rate, the change rate of the common TA change rate and the change rate of the timing change rate.

[0338] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned network device side method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0339] The present application also provides an information processing device, which is applied to a terminal, such as Figure 8 As shown, including:

[0340] The third acquisition unit 81 is used to acquire the terminal receiving and sending time difference, third information and fourth information of the terminal; the third information includes: the duration corresponding to the integer subframe interval between the first uplink subframe of the terminal and the second uplink subframe of the terminal, or the timing change rate of the service link and the first information; the fourth information includes: the change amount of the timing advance, or the timing change rate of the service link and the second information;

[0341] A first sending unit 82 is used to send the terminal receiving and sending time difference, the third information and the fourth information to the network device;

[0342] The index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the downlink subframe carrying the positioning reference signal PRS;

[0343] The terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe;

[0344] The change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the timing advance of the first uplink subframe, the index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of the UTSRP, and the third uplink subframe refers to an uplink subframe carrying a sounding reference signal SRS;

[0345] The first information includes a first index difference between the first uplink subframe and the second uplink subframe, or the first information includes first index information of the first uplink subframe and second index information of the second uplink subframe, and the first index information and the second index information are used to obtain the first index difference;

[0346] The second information includes a second index difference between the first uplink subframe and the third uplink subframe, or the second information includes first index information of the first uplink subframe and third index information of the third uplink subframe, and the first index information and the third index information are used to obtain the second index difference.

[0347] The information processing device provided in the embodiment of the present application obtains the terminal receiving and sending time difference, third information and fourth information of the terminal; sends the terminal receiving and sending time difference, third information and fourth information to the network device; the third information includes: the duration corresponding to the integer subframe interval between the first uplink subframe of the terminal and the second uplink subframe of the terminal, or the timing change rate of the service link and the first information; the fourth information includes: the change in the timing advance, or the timing change rate of the service link and the second information; wherein the index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the downlink subframe carrying the positioning reference signal PRS; the terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe; the change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the first uplink subframe The index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of UTSRP, and the third uplink subframe refers to an uplink subframe carrying a sounding reference signal SRS; the first information includes a first index difference between the first uplink subframe and the second uplink subframe, or the first information includes the first index information of the first uplink subframe and the second index information of the second uplink subframe, and the first index information and the second index information are used to obtain the first index difference; the second information includes the second index difference between the first uplink subframe and the third uplink subframe, or the second information includes the first index information of the first uplink subframe and the third index information of the third uplink subframe, and the first index information and the third index information are used to obtain the second index difference; it can support network equipment to obtain RTT based on the timing change rate of the service link, thereby improving the accuracy of the RTT obtained in the NTN scenario.

[0348] Among them, obtaining the change in the timing advance includes: obtaining a common TA change rate and a change rate of the common TA change rate from a base station; obtaining the change in the timing advance according to the timing change rate, the second information, the common TA change rate and the change rate of the common TA change rate; wherein the common TA change rate refers to the change rate of RTT from UTSRP to the satellite.

[0349] Furthermore, the information processing device also includes: a fourth acquisition unit, used to acquire the change rate of the timing change rate; the change amount of the timing advance is obtained according to the timing change rate, the second information, the common TA change rate and the change rate of the common TA change rate, including: the change amount of the timing advance is obtained according to the timing change rate, the second information, the common TA change rate, the change rate of the common TA change rate and the change rate of the timing change rate.

[0350] Wherein, in a case where the third information includes the timing change rate and the first information, the third information also includes a change rate of the timing change rate.

[0351] In an embodiment of the present application, obtaining the timing change rate includes: measuring a downlink timing signal to obtain the timing change rate; or calculating the timing change rate based on satellite ephemeris information and the location information of the terminal.

[0352] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned terminal side method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0353] It should be noted that the division of units in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0354] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[0355] An embodiment of the present application also provides a non-transitory readable storage medium, which stores a computer program, and the computer program is used to enable a processor to execute the above-mentioned method on the network device side or the terminal side.

[0356] The non-transitory readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical (MO)), etc.), optical storage (such as compact discs (CD), digital video discs (DVD), Blu-ray discs (BD), high-definition versatile discs (HVD), etc.), and semiconductor memories (such as ROM, erasable programmable read-only memory (EPROM), electrically erasable programmable read only memory (EEPROM), non-volatile memory (NAND (Non-volatile Memory Device) FLASH), solid-state drives (SSD)), etc.

[0357] Among them, the implementation embodiments of the information processing method on the above-mentioned network device side or terminal side are all applicable to the embodiments of the non-transitory readable storage medium, and can also achieve the same technical effect.

[0358] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0359] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer executable instructions. These computer executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0360] These processor executable instructions may also be stored in a processor readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0361] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0362] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. An information processing method, applied to a network device, characterized in that: include: Obtaining the duration corresponding to the integer subframe interval between the first uplink subframe of the terminal and the second uplink subframe of the terminal, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance; The change amount of the timing advance is determined according to the timing change rate of the service link; Determine a round-trip delay RTT from the terminal to an uplink timing reference point UTSRP according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance; The index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the downlink subframe carrying the positioning reference signal PRS; The terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe; The base station receives and sends a time difference that is equal to a time difference between a third uplink subframe and a third downlink subframe of the UTSRP, the index number of the third uplink subframe is the same as the index number of the third downlink subframe, and the third uplink subframe refers to an uplink subframe carrying a sounding reference signal SRS; The change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the timing advance of the first uplink subframe, and the index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of the UTSRP.

2. The information processing method according to claim 1, characterized in that: Obtaining the duration corresponding to the integer subframe interval and the terminal receiving and sending time difference, including: receiving a duration corresponding to the integer subframe interval sent by the terminal and a time difference between receiving and sending by the terminal; Alternatively, receiving the terminal receiving and sending time difference, the timing change rate of the service link and the first information sent by the terminal; the first information includes a first index difference between the first uplink subframe and the second uplink subframe, or the first information includes the first index information of the first uplink subframe and the second index information of the second uplink subframe, and the first index information and the second index information are used to obtain the first index difference; A duration corresponding to the integer subframe interval is obtained according to the timing change rate and the first information.

3. The information processing method according to claim 2, characterized in that: Also includes: receiving a change rate of the timing change rate sent by the terminal; The obtaining, according to the timing change rate and the first information, a duration corresponding to the integer subframe interval includes: The duration corresponding to the integer subframe interval is obtained according to the timing change rate, the first information and the change rate of the timing change rate.

4. The information processing method according to claim 1, characterized in that: Also includes: Acquire timing advance TA change rate information, wherein the TA change rate information includes: a common TA change rate and at least one of a change rate of the common TA change rate; The determining, according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance, a round-trip delay RTT from the terminal to an uplink timing reference point UTSRP includes: Determine the RTT from the terminal to UTSRP according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, the change in the timing advance, and the TA change rate information; The common TA change rate refers to the change rate of the RTT from the UTSRP to the satellite.

5. The information processing method according to claim 4, characterized in that: Obtaining the base station receiving and sending time difference and TA change rate information, including: The base station receiving and sending time difference and TA change rate information within the validity period sent by the receiving base station.

6. The information processing method according to claim 4, characterized in that: Acquiring a change in the timing advance includes: receiving a change in the timing advance sent by the terminal; Alternatively, receiving a timing change rate and second information of a service link sent by the terminal; the second information includes a second index difference between the first uplink subframe and the third uplink subframe, or the second information includes first index information of the first uplink subframe and third index information of the third uplink subframe, and the first index information and the third index information are used to obtain the second index difference; The change amount of the timing advance is obtained according to the timing change rate, the second information, the common TA change rate and the change rate of the common TA change rate.

7. The information processing method according to claim 6, characterized in that: Also includes: receiving a change rate of the timing change rate sent by the terminal; The obtaining, according to the timing change rate, the second information, the common TA change rate, and the change rate of the common TA change rate, a change amount of the timing advance includes: The change amount of the timing advance is obtained according to the timing change rate, the second information, the common TA change rate, the change rate of the common TA change rate and the change rate of the timing change rate.

8. An information processing method, applied to a terminal, characterized in that: include: Acquire the terminal receiving and sending time difference, third information and fourth information of the terminal; The third information includes: the duration corresponding to the integer subframe interval between the first uplink subframe of the terminal and the second uplink subframe of the terminal, or the timing change rate of the service link and the first information; the fourth information includes: the change amount of the timing advance, or the timing change rate of the service link and the second information; Sending the terminal receiving and sending time difference, the third information and the fourth information to the network device; The index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the downlink subframe carrying the positioning reference signal PRS; The terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe; The change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the timing advance of the first uplink subframe, the index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of the UTSRP, and the third uplink subframe refers to an uplink subframe carrying a sounding reference signal SRS; The first information includes a first index difference between the first uplink subframe and the second uplink subframe, or the first information includes first index information of the first uplink subframe and second index information of the second uplink subframe, and the first index information and the second index information are used to obtain the first index difference; The second information includes a second index difference between the first uplink subframe and the third uplink subframe, or the second information includes first index information of the first uplink subframe and third index information of the third uplink subframe, and the first index information and the third index information are used to obtain the second index difference.

9. The information processing method according to claim 8, characterized in that: Acquiring a change in the timing advance includes: Obtaining a common TA change rate and a change rate of the common TA change rate from a base station; Obtaining a change amount of the timing advance according to the timing change rate, the second information, the common TA change rate, and a change rate of the common TA change rate; The common TA change rate refers to the change rate of the RTT from UTSRP to the satellite.

10. The information processing method according to claim 9, characterized in that: Also includes: Obtaining a rate of change of the timing change rate; The obtaining, according to the timing change rate, the second information, the common TA change rate, and the change rate of the common TA change rate, a change amount of the timing advance includes: The change amount of the timing advance is obtained according to the timing change rate, the second information, the common TA change rate, the change rate of the common TA change rate and the change rate of the timing change rate.

11. The information processing method according to claim 10, characterized in that: In the case where the third information includes the timing change rate and the first information, the third information further includes a change rate of the timing change rate.

12. The information processing method according to claim 8, characterized in that: Obtaining the timing change rate includes: Measuring a downlink timing signal to obtain the timing change rate; Alternatively, the timing change rate is calculated based on satellite ephemeris information and the location information of the terminal.

13. An information processing device, the information processing device being a network device, characterized in that: Including memory, transceiver, processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Obtaining the duration corresponding to the integer subframe interval between the first uplink subframe of the terminal and the second uplink subframe of the terminal, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance; The change amount of the timing advance is determined according to the timing change rate of the service link; Determine a round-trip delay RTT from the terminal to an uplink timing reference point UTSRP according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance; The index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the downlink subframe carrying the positioning reference signal PRS; The terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe; The base station receives and sends a time difference that is equal to a time difference between a third uplink subframe and a third downlink subframe of the UTSRP, the index number of the third uplink subframe is the same as the index number of the third downlink subframe, and the third uplink subframe refers to an uplink subframe carrying a sounding reference signal SRS; The change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the timing advance of the first uplink subframe, and the index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of the UTSRP.

14. The information processing device according to claim 13, characterized in that Obtaining the duration corresponding to the integer subframe interval and the terminal receiving and sending time difference, including: Receiving, by the transceiver, the duration corresponding to the integer subframe interval sent by the terminal and the time difference between receiving and sending by the terminal; Alternatively, receiving, by the transceiver, the terminal receiving and sending time difference, the timing change rate of the service link, and first information sent by the terminal; the first information includes a first index difference between the first uplink subframe and the second uplink subframe, or the first information includes first index information of the first uplink subframe and second index information of the second uplink subframe, and the first index information and the second index information are used to obtain the first index difference; A duration corresponding to the integer subframe interval is obtained according to the timing change rate and the first information.

15. The information processing device according to claim 14, characterized in that The operations also include: Receiving, by the transceiver, a rate of change of the timing change rate sent by the terminal; The obtaining, according to the timing change rate and the first information, a duration corresponding to the integer subframe interval includes: The duration corresponding to the integer subframe interval is obtained according to the timing change rate, the first information and the change rate of the timing change rate.

16. The information processing device according to claim 13, characterized in that The operations also include: Acquire timing advance TA change rate information, wherein the TA change rate information includes: a common TA change rate and at least one of a change rate of the common TA change rate; The determining, according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, and the change in the timing advance, a round-trip delay RTT from the terminal to an uplink timing reference point UTSRP includes: Determine the RTT from the terminal to UTSRP according to the duration corresponding to the integer subframe interval, the terminal receiving and sending time difference, the base station receiving and sending time difference, the change in the timing advance, and the TA change rate information; The common TA change rate refers to the change rate of the RTT from the UTSRP to the satellite.

17. The information processing device according to claim 16, characterized in that Obtaining the base station receiving and sending time difference and TA change rate information, including: The transceiver receives the base station receiving and sending time difference and the TA change rate information within the validity period sent by the base station.

18. The information processing device according to claim 16, characterized in that Acquiring a change in the timing advance includes: Receiving, by the transceiver, a change in the timing advance sent by the terminal; Alternatively, receiving, by the transceiver, a timing change rate and second information of a service link sent by the terminal; the second information includes a second index difference between the first uplink subframe and the third uplink subframe, or the second information includes first index information of the first uplink subframe and third index information of the third uplink subframe, and the first index information and the third index information are used to obtain the second index difference; The change amount of the timing advance is obtained according to the timing change rate, the second information, the common TA change rate and the change rate of the common TA change rate.

19. The information processing device according to claim 18, characterized in that The operations also include: Receiving, by the transceiver, a rate of change of the timing change rate sent by the terminal; The obtaining, according to the timing change rate, the second information, the common TA change rate, and the change rate of the common TA change rate, a change amount of the timing advance includes: The change amount of the timing advance is obtained according to the timing change rate, the second information, the common TA change rate, the change rate of the common TA change rate and the change rate of the timing change rate.

20. An information processing device, the information processing device being a terminal, characterized in that: Including memory, transceiver, processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Acquire the terminal receiving and sending time difference, third information and fourth information of the terminal; the third information includes: the duration corresponding to the integer subframe interval between the first uplink subframe of the terminal and the second uplink subframe of the terminal, or the timing change rate of the service link and the first information; the fourth information includes: the change amount of the timing advance, or the timing change rate of the service link and the second information; Sending the terminal receiving and sending time difference, the third information and the fourth information to the network device through the transceiver; The index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the downlink subframe carrying the positioning reference signal PRS; The terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe; The change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the timing advance of the first uplink subframe, the index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of the UTSRP, and the third uplink subframe refers to an uplink subframe carrying a sounding reference signal SRS; The first information includes a first index difference between the first uplink subframe and the second uplink subframe, or the first information includes first index information of the first uplink subframe and second index information of the second uplink subframe, and the first index information and the second index information are used to obtain the first index difference; The second information includes a second index difference between the first uplink subframe and the third uplink subframe, or the second information includes first index information of the first uplink subframe and third index information of the third uplink subframe, and the first index information and the third index information are used to obtain the second index difference.

21. The information processing device according to claim 20, characterized in that Acquiring a change in the timing advance includes: Obtaining, by means of the transceiver, a common TA change rate and a change rate of the common TA change rate from a base station; Obtaining a change amount of the timing advance according to the timing change rate, the second information, the common TA change rate, and a change rate of the common TA change rate; The common TA change rate refers to the change rate of the RTT from UTSRP to the satellite.

22. The information processing device according to claim 21, characterized in that The operations also include: Obtaining a rate of change of the timing change rate; The obtaining, according to the timing change rate, the second information, the common TA change rate, and the change rate of the common TA change rate, a change amount of the timing advance includes: The change amount of the timing advance is obtained according to the timing change rate, the second information, the common TA change rate, the change rate of the common TA change rate and the change rate of the timing change rate.

23. The information processing device according to claim 22, characterized in that In the case where the third information includes the timing change rate and the first information, the third information further includes a change rate of the timing change rate.

24. The information processing device according to claim 20, characterized in that Obtaining the timing change rate includes: Measuring a downlink timing signal to obtain the timing change rate; Alternatively, the timing change rate is calculated based on satellite ephemeris information and the location information of the terminal.

25. An information processing device, applied to a network device, characterized in that: include: A first acquisition unit is used to acquire a duration corresponding to an integer subframe interval between a first uplink subframe of a terminal and a second uplink subframe of the terminal, a terminal receiving and sending time difference, a base station receiving and sending time difference, and a change in a timing advance; The change amount of the timing advance is determined according to the timing change rate of the service link; A first determining unit is used to determine a round-trip delay RTT from the terminal to an uplink timing reference point UTSRP according to a duration corresponding to the integer subframe interval, a receiving and sending time difference of the terminal, a receiving and sending time difference of the base station, and a change in the timing advance; The index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the downlink subframe carrying the positioning reference signal PRS; The terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe; The base station receives and sends a time difference that is equal to a time difference between a third uplink subframe and a third downlink subframe of the UTSRP, the index number of the third uplink subframe is the same as the index number of the third downlink subframe, and the third uplink subframe refers to an uplink subframe carrying a sounding reference signal SRS; The change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the timing advance of the first uplink subframe, and the index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of the UTSRP.

26. An information processing device, applied to a terminal, characterized in that: include: A third acquiring unit, configured to acquire a terminal receiving and sending time difference, third information, and fourth information of the terminal; The third information includes: the duration corresponding to the integer subframe interval between the first uplink subframe of the terminal and the second uplink subframe of the terminal, or the timing change rate of the service link and the first information; the fourth information includes: the change amount of the timing advance, or the timing change rate of the service link and the second information; A first sending unit, configured to send the terminal receiving and sending time difference, the third information and the fourth information to the network device; The index number of the first uplink subframe is the same as the index number of the first downlink subframe of the terminal, the second uplink subframe refers to the uplink subframe closest to the first downlink subframe, and the first downlink subframe refers to the downlink subframe carrying the positioning reference signal PRS; The terminal receiving and sending time difference refers to the time difference between the first downlink subframe and the second uplink subframe; The change in the timing advance refers to the difference between the timing advance of the third uplink subframe of the terminal and the timing advance of the first uplink subframe, the index number of the third uplink subframe of the terminal is the same as the index number of the third uplink subframe of the UTSRP, and the third uplink subframe refers to an uplink subframe carrying a sounding reference signal SRS; The first information includes a first index difference between the first uplink subframe and the second uplink subframe, or the first information includes first index information of the first uplink subframe and second index information of the second uplink subframe, and the first index information and the second index information are used to obtain the first index difference; The second information includes a second index difference between the first uplink subframe and the third uplink subframe, or the second information includes first index information of the first uplink subframe and third index information of the third uplink subframe, and the first index information and the third index information are used to obtain the second index difference.

27. A non-transitory readable storage medium, characterized in that: The non-transitory readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the method according to any one of claims 1 to 12.

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