WO2024027642A1 - Information transmission method and apparatus, and device - Google Patents

Abstract

The present application provides an information transmission method and apparatus, and a device. The information transmission method comprises: receiving a sidelink positioning reference signal within at least one of a first time window, a second time window and a third time window, wherein a time slot occupied by the first time window belongs to a sidelink resource pool, a time slot occupied by the second time window belongs to a sidelink dedicated resource pool, and a time slot occupied by the third time window does not belong to the sidelink resource pool and the sidelink dedicated resource pool.

Description

An information transmission method, device and equipment

Cross-references to related applications

This application claims priority to Chinese Patent Application No. 202210918618.0 filed in China on August 1, 2022, the entire content of which is incorporated herein by reference.

Technical field

The present application relates to the field of communication technology, and in particular, to an information transmission method, device and equipment.

Background technique

In the related New Radio (NR) positioning technology, the downlink positioning reference signal and the uplink positioning reference signal transmitted between the base station and the terminal are defined. The positioning reference signal between the base station and the terminal is also defined based on the air interface positioning reference signal. Downlink positioning method, uplink positioning method and downlink + uplink positioning method. The downlink positioning method includes the downlink time difference of arrival (DL-TDOA) positioning method based on delay and the downlink departure angle (Downlink Angle) based on angle. -of-Departure, DL-AoD) positioning method. In these air interface positioning methods, the base station can allocate appropriate time-frequency resources used by the positioning reference signal to the terminal to avoid collisions between the positioning reference signal and other air interface communication channels or signals. In the direct link (PC5) interface between terminals, the direct link positioning reference signal (Sidelink Positioning Reference Signal, SL-PRS) and the corresponding SL-PRS resource allocation mechanism have not yet been defined. Considering the relative positioning between terminals, that is, the need for direct link positioning, it is necessary to introduce the direct link positioning reference signal transmitted between terminals, so that the terminal can directly operate on the direct link without relying on the base station. Complete the relative positioning process between terminals.

Currently, in the direct link positioning, terminal A sends the direct link positioning reference signal SL-PRS, and in order to complete the relative positioning between itself and terminal A, terminal B receives the SL-PRS sent by terminal A and determines The relative distance between terminal B and terminal A. In direct link positioning, if both terminal A and terminal B are outside the coverage, the base station cannot allocate the direct link positioning reference signal to the terminal. Instead, the terminal independently selects the resources used by the direct link positioning reference signal. In this case, the Direct Link Physical Control Channel (Physical Sidelink) required for Direct Link communication Control Channel (PSCCH), physical sidelink shared channel (PSSCH), physical sidelink feedback channel (PSFCH), sidelink channel state information reference signal (Sidelink Channel State Information- Reference Signal, SL CSI-RS) and other channels or signals, as well as the Sidelink Synchronization Signal Block (S-SSB) signal required for direct link synchronization, may collide with SL-PRS or be in the same slot. Transmission, due to the limited processing capabilities of the terminal, the terminal may not be able to complete the reception and processing of other channels or signals required for SL-PRS and direct link communication or synchronization at the same time, resulting in SL-PRS signal reception failure, or direct link The reception of other channels or signals required for communication or synchronization fails, thereby affecting the accuracy of the direct link positioning, or affecting the high-priority communication services of the direct link.

From the above, it is impossible to accurately realize the reception of the positioning reference signal for the through link in the related technology.

Contents of the invention

The purpose of this application is to provide an information transmission method, device and equipment to solve the problem in related technologies that the reception of positioning reference signals for direct links cannot be accurately achieved.

In order to solve the above technical problems, embodiments of the present application provide an information transmission method, applied to terminals, including:

Receive the direct link positioning reference signal within at least one of the first time window, the second time window and the third time window;

Wherein, the time slots occupied by the first time window belong to the direct link resource pool, the time slots occupied by the second time window belong to the direct link dedicated resource pool, and the time slots occupied by the third time window belong to the direct link resource pool. Does not belong to the direct link resource pool and direct link dedicated resource pool.

In some embodiments, before receiving the direct link positioning reference signal within at least one of the first time window, the second time window and the third time window, the method further includes:

Receive time window information sent by a first device; the first device includes: at least one of a terminal, a base station, a Road Side Unit (Road Side Unit, RSU), and a positioning server;

Or, get the time window information according to the preconfiguration;

Wherein, receiving the direct link positioning reference signal in at least one time window among the first time window, the second time window and the third time window includes:

According to the time window information, the direct link positioning reference signal is received in at least one of the first time window, the second time window and the third time window.

In some embodiments, the time slots occupied by the first time window are a first time slot set, and the first time slot set is located in a direct link resource pool; the direct link resource pool is used by the terminal for direct communication Resource pool for link communication;

And/or, the time slots occupied by the second time window are a second time slot set, and the second time slot set is located in a direct link dedicated resource pool; the direct link dedicated resource pool is used by the terminal for transmission Resource pool of direct link positioning reference signal SL-PRS;

And/or, the time slots occupied by the third time window are a third time slot set, and the third time slot set is not used for the direct link resource pool or the direct link dedicated resource pool.

In some embodiments, the first time slot set is a subset of the time slot set occupied by the direct link resource pool; different terminals correspond to different first time windows;

And/or, the second time slot set is a subset of the time slot set occupied by the direct link dedicated resource pool; different terminals correspond to different second time windows.

In some embodiments, the third set of time slots is used for transmitting SL-PRS.

In some embodiments, the reception or processing priority rules between the direct link positioning reference signal SL-PRS and other direct link channels or signals in the first time window include any of the following:

The reception or processing priority of the SL-PRS is higher than the reception or processing priority of the other direct link channels or signals;

The reception or processing priority of SL-PRS is lower than the reception or processing priority of other direct link channels or signals;

Wherein, the other direct link channels or signals include: direct link physical control channel PSCCH, direct link physical shared channel PSSCH, direct link physical feedback channel PSFCH, and direct link channel status information reference signal SL CSI-RS. at least one of.

In some embodiments, the reception or processing priority rule is applied to all time slots within the first time window, or is applied to time slots occupied by SL-PRS within the first time window.

In some embodiments, within the first time window, periodic, semi-persistent or aperiodic SL-PRS transmission in a broadcast, multicast or unicast manner is supported;

and/or, within the second time window, support periodic transmission in a broadcast, multicast or unicast manner Sexual, semi-continuous or aperiodic SL-PRS;

And/or, within the third time window, supporting periodic SL-PRS transmission in a broadcast manner.

In some embodiments, the priority level of the second time window is associated with the through link positioning requirement priority level.

In some embodiments, the third time window occupies a semi-statically configured uplink time slot.

In some embodiments, the time slots occupied by the first time window, the second time window and/or the third time window are configured or preconfigured in a bitmap manner;

And/or, the first time window and/or the second time window are triggered or activated through low-layer signaling;

And/or, the priority type of the first time window and/or the priority level of the second time window are configured or preconfigured.

In some embodiments, the terminal supports at least one of the following:

SL-PRS has priority over all other pass-through link channels or signals;

SL-PRS has a lower priority than all other pass-through link channels or signals;

The priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority;

Wherein, the other direct link channels or signals include: direct link physical control channel PSCCH, direct link physical shared channel PSSCH, direct link physical feedback channel PSFCH, and direct link channel status information reference signal SL CSI-RS. at least one of.

In some embodiments, the terminal uses any of the following options to indicate priority processing options for direct link positioning reference signals that the terminal can support:

Option 1, the terminal supports priority state 1 and priority state 2; the priority state 1 is: SL-PRS has a higher priority than all other direct link channels or signals; the priority state 2 is: SL-PRS has a lower priority than all other pass-through link channels or signals;

Option 2, the terminal supports priority state 1, priority state 2 and priority state 3; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signals; the priority Level state 2 is: the priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority; the priority state 3 is: SL-PRS has a lower priority than all other pass-through link channels or signals;

Option 3, the terminal supports priority state 1; the priority state 1 is: SL-PRS Priority over all other pass-through link channels or signals.

In some embodiments, the time window information includes: first indication information, the first indication information is used to indicate the generation object of the time window information;

Wherein, the generated object includes: at least one of a terminal, a base station, a roadside unit RSU, and a positioning server.

In some embodiments, after receiving the direct link positioning reference signal within at least one of the first time window, the second time window and the third time window, the method further includes:

The location information of the terminal is determined according to the received direct link positioning reference signal.

In some embodiments, determining the location information of the terminal based on the received direct link positioning reference signal includes:

Measure the received direct link positioning reference signal; obtain the location information of the terminal according to the measurement results; or,

Measure the received direct link positioning reference signal; send the measurement result to the positioning calculation unit, and use the positioning calculation unit to obtain the location information of the terminal according to the measurement result.

The embodiment of the present application also provides an information transmission method, applied to the first device, including:

Send time window information to the terminal; the time window information is information for at least one of the first time window, the second time window and the third time window;

Wherein, the time slots occupied by the first time window belong to the direct link resource pool, the time slots occupied by the second time window belong to the direct link dedicated resource pool, and the time slots occupied by the third time window belong to the direct link resource pool. Does not belong to the direct link resource pool and direct link dedicated resource pool;

The first device includes: at least one of a terminal, a base station, a roadside unit RSU, and a positioning server.

In some embodiments, the time slots occupied by the first time window are a first time slot set, and the first time slot set is located in a direct link resource pool; the direct link resource pool is used by the terminal for direct communication Resource pool for link communication;

And/or, the time slots occupied by the second time window are a second time slot set, and the second time slot set is located in a direct link dedicated resource pool; the direct link dedicated resource pool is used by the terminal for transmission Resource pool of direct link positioning reference signal SL-PRS;

And/or, the time slots occupied by the third time window are a third time slot set, and the third time slot set Not used in the cut-through link resource pool or cut-through link dedicated resource pool.

In some embodiments, the first time slot set is a subset of the time slot set occupied by the direct link resource pool; different terminals correspond to different first time windows;

And/or, the second time slot set is a subset of the time slot set occupied by the direct link dedicated resource pool; different terminals correspond to different second time windows.

In some embodiments, the third set of time slots is used for transmitting SL-PRS.

In some embodiments, the reception or processing priority rules between the direct link positioning reference signal SL-PRS and other direct link channels or signals in the first time window include any of the following:

The reception or processing priority of the SL-PRS is higher than the reception or processing priority of the other direct link channels or signals;

The reception or processing priority of SL-PRS is lower than the reception or processing priority of other direct link channels or signals;

Wherein, the other direct link channels or signals include: direct link physical control channel PSCCH, direct link physical shared channel PSSCH, direct link physical feedback channel PSFCH, and direct link channel status information reference signal SL CSI-RS. at least one of.

In some embodiments, the reception or processing priority rule is applied to all time slots within the first time window, or is applied to time slots occupied by SL-PRS within the first time window.

In some embodiments, within the first time window, periodic, semi-persistent or aperiodic SL-PRS transmission in a broadcast, multicast or unicast manner is supported;

and/or, within the second time window, support the transmission of periodic, semi-persistent or aperiodic SL-PRS in a broadcast, multicast or unicast manner;

And/or, within the third time window, supporting periodic SL-PRS transmission in a broadcast manner.

In some embodiments, the priority level of the second time window is associated with the through link positioning requirement priority level.

In some embodiments, the third time window occupies a semi-statically configured uplink time slot.

In some embodiments, the time slots occupied by the first time window, the second time window and/or the third time window are configured or preconfigured in a bitmap manner;

And/or, the first time window and/or the second time window are triggered or activated through low-layer signaling;

and/or, the priority type of the first time window, and/or the priority of the second time window, etc. Levels are configured or preconfigured.

In some embodiments, the terminal supports at least one of the following:

SL-PRS has priority over all other pass-through link channels or signals;

SL-PRS has a lower priority than all other pass-through link channels or signals;

The priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority;

Wherein, the other direct link channels or signals include: direct link physical control channel PSCCH, direct link physical shared channel PSSCH, direct link physical feedback channel PSFCH, and direct link channel status information reference signal SL CSI-RS. at least one of.

In some embodiments, the terminal uses any of the following options to indicate priority processing options for direct link positioning reference signals that the terminal can support:

Option 1, the terminal supports priority state 1 and priority state 2; the priority state 1 is: SL-PRS has a higher priority than all other direct link channels or signals; the priority state 2 is: SL-PRS has a lower priority than all other pass-through link channels or signals;

Option 2, the terminal supports priority state 1, priority state 2 and priority state 3; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signals; the priority Level state 2 is: the priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority; the priority state 3 is: SL-PRS has a lower priority than all other pass-through link channels or signals;

Option 3, the terminal supports priority state 1; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signals.

In some embodiments, the time window information includes: first indication information, the first indication information is used to indicate the generation object of the time window information;

Wherein, the generated object includes: at least one of a terminal, a base station, a roadside unit RSU, and a positioning server.

The embodiment of the present application also provides an information transmission device. The information transmission device is a terminal, including a memory, a transceiver, and a processor:

Memory, used to store computer programs; transceiver, used to send and receive data under the control of the processor; processor, used to read the computer program in the memory and perform the following operations:

In at least one time window among the first time window, the second time window and the third time window, receive the direct link positioning reference signal through the transceiver;

Wherein, the time slots occupied by the first time window belong to the direct link resource pool, the time slots occupied by the second time window belong to the direct link dedicated resource pool, and the time slots occupied by the third time window belong to the direct link resource pool. Does not belong to the direct link resource pool and direct link dedicated resource pool.

In some embodiments, the operations further include:

In at least one time window among the first time window, the second time window and the third time window, before receiving the through link positioning reference signal, the time window information sent by the first device is received through the transceiver; One device includes: at least one of a terminal, a base station, a roadside unit RSU, and a positioning server;

Or, get the time window information according to the preconfiguration;

Wherein, receiving the direct link positioning reference signal in at least one time window among the first time window, the second time window and the third time window includes:

According to the time window information, the direct link positioning reference signal is received in at least one of the first time window, the second time window and the third time window.

In some embodiments, the time slots occupied by the first time window are a first time slot set, and the first time slot set is located in a direct link resource pool; the direct link resource pool is used by the terminal for direct communication Resource pool for link communication;

And/or, the time slots occupied by the second time window are a second time slot set, and the second time slot set is located in a direct link dedicated resource pool; the direct link dedicated resource pool is used by the terminal for transmission Resource pool of direct link positioning reference signal SL-PRS;

And/or, the time slots occupied by the third time window are a third time slot set, and the third time slot set is not used for the direct link resource pool or the direct link dedicated resource pool.

In some embodiments, the first time slot set is a subset of the time slot set occupied by the direct link resource pool; different terminals correspond to different first time windows;

And/or, the second time slot set is a subset of the time slot set occupied by the direct link dedicated resource pool; different terminals correspond to different second time windows.

In some embodiments, the third set of time slots is used for transmitting SL-PRS.

In some embodiments, in the first time window, the direct link positioning reference signal SL-PRS and Reception or processing priority rules between other pass-through link channels or signals, including any of the following:

The reception or processing priority of the SL-PRS is higher than the reception or processing priority of the other direct link channels or signals;

The reception or processing priority of SL-PRS is lower than the reception or processing priority of other direct link channels or signals;

Wherein, the other direct link channels or signals include: direct link physical control channel PSCCH, direct link physical shared channel PSSCH, direct link physical feedback channel PSFCH, and direct link channel status information reference signal SL CSI-RS. at least one of.

In some embodiments, the reception or processing priority rule is applied to all time slots within the first time window, or is applied to time slots occupied by SL-PRS within the first time window.

In some embodiments, within the first time window, periodic, semi-persistent or aperiodic SL-PRS transmission in a broadcast, multicast or unicast manner is supported;

and/or, within the second time window, support the transmission of periodic, semi-persistent or aperiodic SL-PRS in a broadcast, multicast or unicast manner;

And/or, within the third time window, supporting periodic SL-PRS transmission in a broadcast manner.

In some embodiments, the priority level of the second time window is associated with the through link positioning requirement priority level.

In some embodiments, the third time window occupies a semi-statically configured uplink time slot.

In some embodiments, the time slots occupied by the first time window, the second time window and/or the third time window are configured or preconfigured in a bitmap manner;

And/or, the first time window and/or the second time window are triggered or activated through low-layer signaling;

And/or, the priority type of the first time window and/or the priority level of the second time window are configured or preconfigured.

In some embodiments, the terminal supports at least one of the following:

SL-PRS has priority over all other pass-through link channels or signals;

SL-PRS has a lower priority than all other pass-through link channels or signals;

The priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority;

Wherein, the other direct link channels or signals include: direct link physical control channel At least one of the PSCCH, the direct link physical shared channel PSSCH, the direct link physical feedback channel PSFCH, and the direct link channel state information reference signal SL CSI-RS.

In some embodiments, the terminal uses any of the following options to indicate priority processing options for direct link positioning reference signals that the terminal can support:

Option 1, the terminal supports priority state 1 and priority state 2; the priority state 1 is: SL-PRS has a higher priority than all other direct link channels or signals; the priority state 2 is: SL-PRS has a lower priority than all other pass-through link channels or signals;

Option 2, the terminal supports priority state 1, priority state 2 and priority state 3; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signals; the priority Level state 2 is: the priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority; the priority state 3 is: SL-PRS has a lower priority than all other pass-through link channels or signals;

Option 3, the terminal supports priority state 1; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signals.

In some embodiments, the time window information includes: first indication information, the first indication information is used to indicate the generation object of the time window information;

Wherein, the generated object includes: at least one of a terminal, a base station, a roadside unit RSU, and a positioning server.

In some embodiments, the operations further include:

In at least one time window among the first time window, the second time window and the third time window, after receiving the direct link positioning reference signal, the location information of the terminal is determined according to the received direct link positioning reference signal.

In some embodiments, determining the location information of the terminal based on the received direct link positioning reference signal includes:

Measure the received direct link positioning reference signal; obtain the location information of the terminal according to the measurement results; or,

Measure the received direct link positioning reference signal; send the measurement result to the positioning calculation unit, and use the positioning calculation unit to obtain the location information of the terminal according to the measurement result.

The embodiment of the present application also provides an information transmission device. The information transmission device is a first device. Equipment, including memory, transceiver, processor:

Memory, used to store computer programs; transceiver, used to send and receive data under the control of the processor; processor, used to read the computer program in the memory and perform the following operations:

Through the transceiver, time window information is sent to the terminal; the time window information is information for at least one of the first time window, the second time window and the third time window;

Wherein, the time slots occupied by the first time window belong to the direct link resource pool, the time slots occupied by the second time window belong to the direct link dedicated resource pool, and the time slots occupied by the third time window belong to the direct link resource pool. Does not belong to the direct link resource pool and direct link dedicated resource pool;

The first device includes: at least one of a terminal, a base station, a roadside unit RSU, and a positioning server.

In some embodiments, the time slots occupied by the first time window are a first time slot set, and the first time slot set is located in a direct link resource pool; the direct link resource pool is used by the terminal for direct communication Resource pool for link communication;

And/or, the time slots occupied by the second time window are a second time slot set, and the second time slot set is located in a direct link dedicated resource pool; the direct link dedicated resource pool is used by the terminal for transmission Resource pool of direct link positioning reference signal SL-PRS;

And/or, the time slots occupied by the third time window are a third time slot set, and the third time slot set is not used for the direct link resource pool or the direct link dedicated resource pool.

In some embodiments, the first time slot set is a subset of the time slot set occupied by the direct link resource pool; different terminals correspond to different first time windows;

And/or, the second time slot set is a subset of the time slot set occupied by the direct link dedicated resource pool; different terminals correspond to different second time windows.

In some embodiments, the third set of time slots is used for transmitting SL-PRS.

In some embodiments, the reception or processing priority rules between the direct link positioning reference signal SL-PRS and other direct link channels or signals in the first time window include any of the following:

The reception or processing priority of the SL-PRS is higher than the reception or processing priority of the other direct link channels or signals;

The reception or processing priority of SL-PRS is lower than the reception or processing priority of other direct link channels or signals;

Wherein, the other direct link channels or signals include: direct link physical control channel PSCCH, direct link physical shared channel PSSCH, direct link physical feedback channel PSFCH, and direct link channel status information reference signal SL CSI-RS. at least one of.

In some embodiments, the reception or processing priority rule is applied to all time slots within the first time window, or is applied to time slots occupied by SL-PRS within the first time window.

In some embodiments, within the first time window, periodic, semi-persistent or aperiodic SL-PRS transmission in a broadcast, multicast or unicast manner is supported;

and/or, within the second time window, support the transmission of periodic, semi-persistent or aperiodic SL-PRS in a broadcast, multicast or unicast manner;

And/or, within the third time window, supporting periodic SL-PRS transmission in a broadcast manner.

In some embodiments, the priority level of the second time window is associated with the through link positioning requirement priority level.

In some embodiments, the third time window occupies a semi-statically configured uplink time slot.

In some embodiments, the time slots occupied by the first time window, the second time window and/or the third time window are configured or preconfigured in a bitmap manner;

And/or, the first time window and/or the second time window are triggered or activated through low-layer signaling;

And/or, the priority type of the first time window and/or the priority level of the second time window are configured or preconfigured.

In some embodiments, the terminal supports at least one of the following:

SL-PRS has priority over all other pass-through link channels or signals;

SL-PRS has a lower priority than all other pass-through link channels or signals;

The priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority;

Wherein, the other direct link channels or signals include: direct link physical control channel PSCCH, direct link physical shared channel PSSCH, direct link physical feedback channel PSFCH, and direct link channel status information reference signal SL CSI-RS. at least one of.

In some embodiments, the terminal uses any of the following options to indicate priority processing options for direct link positioning reference signals that the terminal can support:

Option 1, the terminal supports priority state 1 and priority state 2; the priority state 1 The priority state 2 is: the priority of SL-PRS is higher than that of all other direct link channels or signals; the priority state 2 is: the priority of SL-PRS is lower than that of all other direct link channels or signals;

Option 2, the terminal supports priority state 1, priority state 2 and priority state 3; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signals; the priority Level state 2 is: the priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority; the priority state 3 is: SL-PRS has a lower priority than all other pass-through link channels or signals;

Option 3, the terminal supports priority state 1; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signals.

In some embodiments, the time window information includes: first indication information, the first indication information is used to indicate the generation object of the time window information;

Wherein, the generated object includes: at least one of a terminal, a base station, a roadside unit RSU, and a positioning server.

The embodiment of the present application also provides an information transmission device, applied to a terminal, including:

A first receiving unit configured to receive the through link positioning reference signal in at least one of the first time window, the second time window and the third time window;

Wherein, the time slots occupied by the first time window belong to the direct link resource pool, the time slots occupied by the second time window belong to the direct link dedicated resource pool, and the time slots occupied by the third time window belong to the direct link resource pool. Does not belong to the direct link resource pool and direct link dedicated resource pool.

In some embodiments, it also includes:

The second receiving unit is configured to receive the time window information sent by the first device before receiving the through link positioning reference signal in at least one time window among the first time window, the second time window and the third time window; The first device includes: at least one of a terminal, a base station, a roadside unit RSU, and a positioning server;

Or, the first processing unit is configured to obtain the time window information according to the preconfiguration before receiving the through link positioning reference signal within at least one of the first time window, the second time window and the third time window;

Wherein, receiving the direct link positioning reference signal in at least one time window among the first time window, the second time window and the third time window includes:

According to the time window information, the direct link positioning reference signal is received in at least one of the first time window, the second time window and the third time window.

In some embodiments, the time slots occupied by the first time window are a first time slot set, and the first time slot set is located in a direct link resource pool; the direct link resource pool is used by the terminal for direct communication Resource pool for link communication;

And/or, the time slots occupied by the second time window are a second time slot set, and the second time slot set is located in a direct link dedicated resource pool; the direct link dedicated resource pool is used by the terminal for transmission Resource pool of direct link positioning reference signal SL-PRS;

And/or, the time slots occupied by the third time window are a third time slot set, and the third time slot set is not used for the direct link resource pool or the direct link dedicated resource pool.

In some embodiments, the first time slot set is a subset of the time slot set occupied by the direct link resource pool; different terminals correspond to different first time windows;

And/or, the second time slot set is a subset of the time slot set occupied by the direct link dedicated resource pool; different terminals correspond to different second time windows.

In some embodiments, the third set of time slots is used for transmitting SL-PRS.

In some embodiments, the reception or processing priority rules between the direct link positioning reference signal SL-PRS and other direct link channels or signals in the first time window include any of the following:

The reception or processing priority of the SL-PRS is higher than the reception or processing priority of the other direct link channels or signals;

The reception or processing priority of SL-PRS is lower than the reception or processing priority of other direct link channels or signals;

Wherein, the other direct link channels or signals include: direct link physical control channel PSCCH, direct link physical shared channel PSSCH, direct link physical feedback channel PSFCH, and direct link channel status information reference signal SL CSI-RS. at least one of.

In some embodiments, the reception or processing priority rule is applied to all time slots within the first time window, or is applied to time slots occupied by SL-PRS within the first time window.

In some embodiments, within the first time window, periodic, semi-persistent or aperiodic SL-PRS transmission in a broadcast, multicast or unicast manner is supported;

and/or, within the second time window, support periodic transmission in a broadcast, multicast or unicast manner Sexual, semi-continuous or aperiodic SL-PRS;

And/or, within the third time window, supporting periodic SL-PRS transmission in a broadcast manner.

In some embodiments, the priority level of the second time window is associated with the through link positioning requirement priority level.

In some embodiments, the third time window occupies a semi-statically configured uplink time slot.

In some embodiments, the time slots occupied by the first time window, the second time window and/or the third time window are configured or preconfigured in a bitmap manner;

And/or, the first time window and/or the second time window are triggered or activated through low-layer signaling;

And/or, the priority type of the first time window and/or the priority level of the second time window are configured or preconfigured.

In some embodiments, the terminal supports at least one of the following:

SL-PRS has priority over all other pass-through link channels or signals;

SL-PRS has a lower priority than all other pass-through link channels or signals;

The priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority;

Wherein, the other direct link channels or signals include: direct link physical control channel PSCCH, direct link physical shared channel PSSCH, direct link physical feedback channel PSFCH, and direct link channel status information reference signal SL CSI-RS. at least one of.

In some embodiments, the terminal uses any of the following options to indicate priority processing options for direct link positioning reference signals that the terminal can support:

Option 1, the terminal supports priority state 1 and priority state 2; the priority state 1 is: SL-PRS has a higher priority than all other direct link channels or signals; the priority state 2 is: SL-PRS has a lower priority than all other pass-through link channels or signals;

Option 2, the terminal supports priority state 1, priority state 2 and priority state 3; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signals; the priority Level state 2 is: the priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority; the priority state 3 is: SL-PRS has a lower priority than all other pass-through link channels or signals;

Option 3, the terminal supports priority state 1; the priority state 1 is: SL-PRS Priority over all other pass-through link channels or signals.

In some embodiments, the time window information includes: first indication information, the first indication information is used to indicate the generation object of the time window information;

Wherein, the generated object includes: at least one of a terminal, a base station, a roadside unit RSU, and a positioning server.

In some embodiments, it also includes:

The first determining unit is configured to determine, after receiving the direct link positioning reference signal within at least one of the first time window, the second time window and the third time window, according to the received direct link positioning reference signal. The location information of the terminal.

In some embodiments, determining the location information of the terminal based on the received direct link positioning reference signal includes:

Measure the received direct link positioning reference signal; obtain the location information of the terminal according to the measurement results; or,

Measure the received direct link positioning reference signal; send the measurement result to the positioning calculation unit, and use the positioning calculation unit to obtain the location information of the terminal according to the measurement result.

The embodiment of the present application also provides an information transmission device, applied to the first device, including:

A first sending unit configured to send time window information to the terminal; the time window information is information for at least one of the first time window, the second time window, and the third time window;

Wherein, the time slots occupied by the first time window belong to the direct link resource pool, the time slots occupied by the second time window belong to the direct link dedicated resource pool, and the time slots occupied by the third time window belong to the direct link resource pool. Does not belong to the direct link resource pool and direct link dedicated resource pool;

The first device includes: at least one of a terminal, a base station, a roadside unit RSU, and a positioning server.

In some embodiments, the time slots occupied by the first time window are a first time slot set, and the first time slot set is located in a direct link resource pool; the direct link resource pool is used by the terminal for direct communication Resource pool for link communication;

And/or, the time slots occupied by the second time window are a second time slot set, and the second time slot set is located in a direct link dedicated resource pool; the direct link dedicated resource pool is used by the terminal for transmission Resource pool of direct link positioning reference signal SL-PRS;

And/or, the time slots occupied by the third time window are a third time slot set, and the third time slot set is not used for the direct link resource pool or the direct link dedicated resource pool.

In some embodiments, the first time slot set is a subset of the time slot set occupied by the direct link resource pool; different terminals correspond to different first time windows;

And/or, the second time slot set is a subset of the time slot set occupied by the direct link dedicated resource pool; different terminals correspond to different second time windows.

In some embodiments, the third set of time slots is used for transmitting SL-PRS.

In some embodiments, the reception or processing priority rules between the direct link positioning reference signal SL-PRS and other direct link channels or signals in the first time window include any of the following:

The reception or processing priority of the SL-PRS is higher than the reception or processing priority of the other direct link channels or signals;

The reception or processing priority of SL-PRS is lower than the reception or processing priority of other direct link channels or signals;

Wherein, the other direct link channels or signals include: direct link physical control channel PSCCH, direct link physical shared channel PSSCH, direct link physical feedback channel PSFCH, and direct link channel status information reference signal SL CSI-RS. at least one of.

In some embodiments, the reception or processing priority rule is applied to all time slots within the first time window, or is applied to time slots occupied by SL-PRS within the first time window.

In some embodiments, within the first time window, periodic, semi-persistent or aperiodic SL-PRS transmission in a broadcast, multicast or unicast manner is supported;

and/or, within the second time window, support the transmission of periodic, semi-persistent or aperiodic SL-PRS in a broadcast, multicast or unicast manner;

And/or, within the third time window, supporting periodic SL-PRS transmission in a broadcast manner.

In some embodiments, the priority level of the second time window is associated with the through link positioning requirement priority level.

In some embodiments, the third time window occupies a semi-statically configured uplink time slot.

In some embodiments, the time slots occupied by the first time window, the second time window and/or the third time window are configured or preconfigured in a bitmap manner;

And/or, the first time window and/or the second time window are triggered or activated through low-layer signaling;

And/or, the priority type of the first time window and/or the priority level of the second time window are configured or preconfigured.

In some embodiments, the terminal supports at least one of the following:

SL-PRS has priority over all other pass-through link channels or signals;

SL-PRS has a lower priority than all other pass-through link channels or signals;

The priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority;

Wherein, the other direct link channels or signals include: direct link physical control channel PSCCH, direct link physical shared channel PSSCH, direct link physical feedback channel PSFCH, and direct link channel status information reference signal SL CSI-RS. at least one of.

In some embodiments, the terminal uses any of the following options to indicate priority processing options for direct link positioning reference signals that the terminal can support:

Option 1, the terminal supports priority state 1 and priority state 2; the priority state 1 is: SL-PRS has a higher priority than all other direct link channels or signals; the priority state 2 is: SL-PRS has a lower priority than all other pass-through link channels or signals;

Option 2, the terminal supports priority state 1, priority state 2 and priority state 3; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signals; the priority Level state 2 is: the priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority; the priority state 3 is: SL-PRS has a lower priority than all other pass-through link channels or signals;

Option 3, the terminal supports priority state 1; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signals.

In some embodiments, the time window information includes: first indication information, the first indication information is used to indicate the generation object of the time window information;

Wherein, the generated object includes: at least one of a terminal, a base station, a roadside unit RSU, and a positioning server.

Embodiments of the present application also provide a processor-readable storage medium. The processor-readable storage medium stores a computer program. The computer program is used to cause the processor to execute the above information transmission method.

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

In the above scheme, the information transmission method is by receiving the direct link positioning reference signal in at least one of the first time window, the second time window and the third time window; wherein the first time window is The occupied time slots belong to the direct link resource pool, the time slots occupied by the second time window belong to the direct link dedicated resource pool, and the time slots occupied by the third time window do not belong to the direct link resource pool. With a dedicated resource pool for direct links; it can support terminals to accurately receive direct link positioning reference signals, which helps to improve direct link positioning accuracy and reduce direct link positioning delay; it is a good solution to the inability to accurately determine the direct link positioning in related technologies. Realize the problem of receiving the positioning reference signal for the direct link.

Description of the drawings

Figure 1 is a schematic diagram of the wireless communication system architecture according to an embodiment of the present application;

Figure 2 is a schematic diagram of the DL-TDOA and DL-AoD positioning methods according to the embodiment of the present application;

Figure 3 is a schematic flowchart 1 of the information transmission method according to the embodiment of the present application;

Figure 4 is a schematic flow chart 2 of the information transmission method according to the embodiment of the present application;

Figure 5 is a schematic diagram of direct link positioning reference signal transmission according to the embodiment of the present application;

Figure 6 is a schematic diagram of the first time window according to the embodiment of the present application;

Figure 7 is a schematic diagram of the second time window according to the embodiment of the present application;

Figure 8 is a schematic diagram of the third time window according to the embodiment of the present application;

Figure 9 is a schematic diagram 2 of the first time window according to the embodiment of the present application;

Figure 10 is a schematic diagram of time window configuration information source indication according to the embodiment of the present application;

Figure 11 is a schematic structural diagram of a terminal according to an embodiment of the present application;

Figure 12 is a schematic structural diagram of the first equipment according to the embodiment of the present application;

Figure 13 is a schematic structural diagram of an information transmission device according to an embodiment of the present application;

Figure 14 is a schematic second structural diagram of an information transmission device according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, and Not all examples. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

In the embodiment of this application, the term "and/or" describes the association of associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone. these three situations. The character "/" generally indicates that the related objects are in an "or" relationship.

In the embodiments of this application, the term "plurality" refers to two or more than two, and other quantifiers are similar to it.

It should be noted here that the technical solutions provided by the embodiments of the present application can be applied to a variety of systems, especially fifth generation mobile communication technology (5th Generation Mobile Communication Technology, 5G) systems. For example, applicable systems can be global system of mobile communication (GSM) system, code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) general packet Wireless service (general packet radio service, GPRS) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, Advanced long term evolution (long term evolution advanced, LTE-A) system, universal mobile telecommunication system (UMTS), global interoperability for microwave access (WiMAX) system, 5G New Radio, NR) system, etc. These various systems include terminal equipment and network equipment. The system can also include the core network part, such as the Evolved Packet System (EPS), 5G System (5G System, 5GS), etc.

Figure 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes terminal equipment (also referred to as terminal for short) and network equipment.

The terminal device involved in the embodiments of this application may be a device that provides voice and/or data connectivity to users, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, etc. In different systems, the names of terminal equipment may also be different. For example, in a 5G system, the terminal equipment may be called User Equipment (UE). Wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via a Radio Access Network (RAN). The wireless terminal equipment can be a mobile terminal equipment, such as a mobile phone. (also known as "cellular" telephones) and computers with mobile terminal devices, e.g. portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile devices, which exchange voice and/or data with the radio access network . For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants, PDA) and other equipment. Wireless terminal equipment may also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, or an access point. , remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), user device (user device), are not limited in the embodiments of this application.

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

Network equipment and terminal equipment can each use one or more antennas for multiple input and multiple output (Multi Input Multi Output, MIMO) transmission, MIMO transmission can be single user MIMO (Single User MIMO, SU-MIMO) or multi-user MIMO (Multiple User MIMO, MU-MIMO). Depending on the shape and number of root antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoding transmission or beamforming transmission, etc.

The content involved in the solution provided by the embodiment of this application is first introduced below.

In the related New Radio (NR) positioning technology, the downlink positioning reference signal and the uplink positioning reference signal transmitted between the base station and the terminal are defined, and the downlink positioning method between the base station and the terminal is also defined based on the air interface positioning reference signal. , uplink positioning method and downlink + uplink positioning method. In the direct link (PC5) interface between terminals, the direct link positioning reference signal (SL-PRS) is not defined.

Take the downlink positioning method as an example. The downlink positioning method mainly includes the delay-based downlink time difference of arrival (DL-TDOA) positioning method and the angle-based downlink angle of departure (DL-AoD) positioning method. For the DL-TDOA delay positioning method, the position of the terminal is estimated through the relative delay between base stations based on the difference in propagation distance of the terminal relative to each base station. For the DL-AoD angle positioning method, the position of the terminal is determined through multiple angle parameters based on the position and direction of the terminal relative to the base station. The specific technical solution is shown in Figure 2.

Among them, the positioning steps based on DL-AoD angle estimation include:

(1) Base station 1 (gNB1), base station 2 (gNB2), and base station 3 (gNB3) respectively send periodic downlink positioning reference signals (Down Link Positioning Reference Signal, DL-PRS) signals to the UE;

(2) The terminal (User Equipment, UE) measures each downlink positioning reference signal (DL- PRS) beam signal and report the DL-PRS reference signal receiving power (RSRP) measurement value to LMF;

(3) LMF uses the DL-PRS RSRP reported by the UE and other known information (such as the transmission direction of each DL-PRS beam of each gNB) to determine the angle of the UE relative to each gNB, that is, DL-AoD;

(4) LMF uses the obtained DL-AoD and the geographical coordinates of each gNB to calculate the location of the UE. Set.

Among them, the positioning steps of DL-TDOA include:

(1) gNB1, gNB2, and gNB3 respectively send periodic DL-PRS signals to the UE;

(2) Based on the DL-TDOA assistance data provided by the LMF, the UE learns the configuration information of the downlink positioning reference signal DL-PRS sent by gNBs around the UE. By receiving the DL-PRS of each gNB, it first estimates the distance between each gNB. The time of arrival (Time Of Arrival, TOA) measurement value between them is calculated, and then the downlink reference signal arrival time difference (Down Link Positioning Reference Signal Time Difference, DL-PRS RSTD) is calculated.

(3) The DL-PRS RSTD and other known information (such as the geographical coordinates of gNB) obtained by the UE can be used to calculate the location of the UE using a network-based positioning method or a UE-based positioning method.

a) If the network-based positioning method is used, the UE reports the obtained DL-PRS RSTD measurement value to the LMF, and the LMF uses the reported measurement value and other known information (such as the geographical coordinates of the gNB) to calculate the UE's location.

b) If the UE-based positioning method is adopted, the UE itself uses the obtained DL-PRS RSTD and other information provided by the network (such as the geographical coordinates of the gNB) to calculate the UE's own position.

Based on the above, embodiments of the present application provide an information transmission method, device and equipment to solve the problem in related technologies that the reception of positioning reference signals for direct links cannot be accurately achieved. Among them, the method, device and equipment are based on the concept of the same application. Since the methods, devices and equipment have similar principles for solving problems, the implementation of the method, device and equipment can be referred to each other, and repeated details will not be repeated.

The information transmission method provided by the embodiment of the present application is applied to the terminal, as shown in Figure 3, and includes:

Step 31: Receive the through link positioning reference signal in at least one of the first time window, the second time window and the third time window; wherein the time slot occupied by the first time window belongs to the through link. path resource pool, the time slot occupied by the second time window belongs to the direct link dedicated resource pool, and the time slot occupied by the third time window does not belong to the direct link resource pool and the direct link dedicated resource pool. .

The information transmission method provided by the embodiment of the present application receives the direct link positioning reference signal in at least one time window among the first time window, the second time window and the third time window; wherein, the first time window The time slot occupied by the window belongs to the direct link resource pool, and the time slot occupied by the second time window The time slots belong to the direct link dedicated resource pool, and the time slot occupied by the third time window does not belong to the direct link resource pool and the direct link dedicated resource pool; it can support the terminal to accurately perform the direct link positioning reference signal The reception helps to improve the positioning accuracy of the direct link and reduce the positioning delay of the direct link; it effectively solves the problem in related technologies that the reception of the positioning reference signal for the direct link cannot be accurately achieved.

Further, before receiving the direct link positioning reference signal within at least one of the first time window, the second time window and the third time window, the method further includes: receiving time window information sent by the first device; The first device includes: at least one of a terminal, a base station, a roadside unit RSU and a positioning server; or, according to the preconfiguration, time window information is obtained; wherein the first time window, the second time window and the third Receiving the direct link positioning reference signal within at least one time window among the time windows includes: according to the time window information, within at least one time window among the first time window, the second time window and the third time window, Receive pass-through link positioning reference signal.

In this way, time window information can be obtained in a variety of ways.

In the embodiment of this application, the time slots occupied by the first time window are the first time slot set, and the first time slot set is located in the direct link resource pool; the direct link resource pool is used by the terminal for direct communication A resource pool for link communication; and/or, the time slots occupied by the second time window are a second time slot set, and the second time slot set is located in a direct link dedicated resource pool; the direct through link dedicated resource pool The resource pool is a resource pool that the terminal uses to transmit the direct link positioning reference signal SL-PRS (in some embodiments, the direct link dedicated resource pool is a resource pool that the terminal only uses to transmit the direct link positioning reference signal SL-PRS. Resource pool); and/or, the time slots occupied by the third time window are a third time slot set, and the third time slot set is not used for the direct link resource pool or the direct link dedicated resource pool.

This can support diversified reception of SL-PRS; among them, the third time slot set is excluded from the available time slots in the direct link resource pool or the direct link dedicated resource pool, and the remaining time slots after exclusion can be used for the direct link path resource pool or direct link dedicated resource pool.

Wherein, the first time slot set is a subset of the time slot set occupied by the direct link resource pool; different terminals correspond to different first time windows; and/or the second time slot set is a direct A subset of the time slot set occupied by the link dedicated resource pool; different terminals correspond to different second time windows.

In the embodiment of this application, the third time slot set is used to transmit SL-PRS. In some embodiments, The third set of time slots is only used for transmitting SL-PRS.

Among them, the reception or processing priority rules between the direct link positioning reference signal SL-PRS and other direct link channels or signals in the first time window include any of the following: (1) Reception of SL-PRS or the processing priority is higher than the reception or processing priority of other direct link channels or signals; (2) the reception or processing priority of SL-PRS is lower than the reception or processing priority of other direct link channels or signals; where , the other direct link channels or signals include: direct link physical control channel PSCCH, direct link physical shared channel PSSCH, direct link physical feedback channel PSFCH and direct link channel status information reference signal SL CSI-RS. At least one item.

In this embodiment of the present application, the reception or processing priority rule is applied to all time slots within the first time window, or is applied to the time slots occupied by SL-PRS within the first time window ( In some embodiments, it is only applied in the time slots occupied by SL-PRS within the first time window).

In this way, the application of the receiving or processing priority rules can be diversified.

Wherein, within the first time window, it is supported to transmit periodic, semi-persistent or aperiodic SL-PRS in a broadcast, multicast or unicast manner; and/or, within the second time window, it is supported to transmit periodic, semi-persistent or aperiodic SL-PRS in a broadcast, multicast or unicast manner; Periodic, semi-persistent or aperiodic SL-PRS is transmitted in a broadcast, multicast or unicast manner; and/or, within the third time window, periodic SL-PRS is transmitted in a broadcast manner.

In this embodiment of the present application, the priority level of the second time window is associated with the priority level of the direct link positioning requirement. Wherein, among the plurality of second time windows, the terminal may apply a second time window with a higher priority level.

Wherein, the third time window occupies a semi-statically configured uplink time slot.

In this embodiment of the present application, the time slots occupied by the first time window, the second time window and/or the third time window are configured or pre-configured in a bitmap manner; and/or the first time window and/or the second time window is triggered or activated through low-layer signaling; and/or the priority type of the first time window and/or the priority level of the second time window is configured or preconfigured of.

Among them, the low-layer signaling may include: direct link control information SCI and/or media access control element (Media Access Control Control Element, MAC CE), but is not limited to this.

In the embodiment of this application, the terminal supports at least one of the following: (1) SL-PRS has a higher priority than all other direct link channels or signals; (2) SL-PRS has a lower priority than all other direct link channels or signals. (3) The priority of SL-PRS is lower than the first priority of other direct link channels or signal, and other direct link channels or signals higher than the second priority; wherein, the other direct link channels or signals include: direct link physical control channel PSCCH, direct link physical shared channel PSSCH, direct link At least one of the physical feedback channel PSFCH and the direct link channel state information reference signal SL CSI-RS.

The first priority may be a priority higher than or equal to the first threshold; the second priority may be a priority lower than the first threshold, but is not limited to this.

In this embodiment of the present application, the terminal uses any of the following options to indicate the priority processing option of the direct link positioning reference signal that it (the terminal) can support: Option 1, the terminal supports priority status 1 and priority State 2; the priority state 1 is: the priority of SL-PRS is higher than all other direct link channels or signals; the priority state 2 is: the priority of SL-PRS is lower than all other direct link channels or signal; option 2, the terminal supports priority state 1, priority state 2 and priority state 3; the priority state 1 is: the priority of SL-PRS is higher than all other direct link channels or signals; The priority state 2 is: the priority of the SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority; the priority state 3 is: the priority of SL-PRS is lower than all other direct link channels or signals; option 3, the terminal supports priority state 1; the priority state 1 is: the priority of SL-PRS is higher than all other Direct link channel or signal.

This clarifies the priority processing options supported by the terminal. This option can be determined based on terminal capabilities, but is not limited to this.

Wherein, the time window information includes: first indication information, the first indication information is used to indicate the generation object of the time window information; wherein the generation object includes: terminal, base station, roadside unit RSU and positioning At least one item in the server.

This allows the terminal to know the source of the time window information.

Further, after receiving the direct link positioning reference signal in at least one of the first time window, the second time window and the third time window, the method further includes: determining the direct link positioning reference signal according to the received direct link positioning reference signal. The location information of the terminal.

This enables terminal positioning.

Wherein, determining the location information of the terminal according to the received direct link positioning reference signal includes: measuring the received direct link positioning reference signal; according to the measurement result, obtain The location information of the terminal; or, measure the received direct link positioning reference signal; send the measurement result to the positioning calculation unit, and use the positioning calculation unit to obtain the location information of the terminal according to the measurement result.

In this way, terminal positioning can be realized in a variety of ways.

The embodiment of the present application also provides an information transmission method, applied to the first device, as shown in Figure 4, including:

Step 41: Send time window information to the terminal; the time window information is information for at least one of the first time window, the second time window and the third time window; wherein the time occupied by the first time window The time slots belong to the direct link resource pool, the time slots occupied by the second time window belong to the direct link dedicated resource pool, and the time slots occupied by the third time window do not belong to the direct link resource pool and the direct link. Road-specific resource pool; the first device includes: at least one of a terminal, a base station, a road side unit RSU, and a positioning server.

The terminal included in the first device may be a terminal other than the terminal (that is, the terminal that receives the time window information), but is not limited to this.

The information transmission method provided by the embodiment of the present application sends time window information to the terminal; the time window information is information for at least one of the first time window, the second time window and the third time window; wherein, The time slots occupied by the first time window belong to the direct link resource pool, the time slots occupied by the second time window belong to the direct link dedicated resource pool, and the time slots occupied by the third time window do not belong to the direct link resource pool. The direct link resource pool and the direct link dedicated resource pool; the first device includes: at least one of a terminal, a base station, a road side unit RSU and a positioning server; and can support the terminal as the recipient to accurately perform the direct link The reception of positioning reference signals helps to improve the positioning accuracy of the direct link and reduce the positioning delay of the direct link; it effectively solves the problem in related technologies that the positioning reference signal for the direct link cannot be accurately received.

In the embodiment of this application, the time slots occupied by the first time window are the first time slot set, and the first time slot set is located in the direct link resource pool; the direct link resource pool is used by the terminal for direct communication A resource pool for link communication; and/or, the time slots occupied by the second time window are a second time slot set, and the second time slot set is located in a direct link dedicated resource pool; the direct through link dedicated resource pool The resource pool is a resource pool that the terminal uses to transmit the direct link positioning reference signal SL-PRS (in some embodiments, the direct link dedicated resource pool is a resource pool that the terminal only uses to transmit the direct link positioning reference signal SL-PRS. capital source pool); and/or, the time slots occupied by the third time window are a third time slot set, and the third time slot set is not used for the direct link resource pool or the direct link dedicated resource pool.

This can support diversified reception of SL-PRS; among them, the third time slot set is excluded from the available time slots in the direct link resource pool or the direct link dedicated resource pool, and the remaining time slots after exclusion can be used for the direct link path resource pool or direct link dedicated resource pool.

Wherein, the first time slot set is a subset of the time slot set occupied by the direct link resource pool; different terminals correspond to different first time windows; and/or the second time slot set is a direct A subset of the time slot set occupied by the link dedicated resource pool; different terminals correspond to different second time windows.

In this embodiment of the present application, the third time slot set is used to transmit SL-PRS. In some embodiments, the third time slot set is only used to transmit SL-PRS.

Among them, the reception or processing priority rules between the direct link positioning reference signal SL-PRS and other direct link channels or signals in the first time window include any of the following: (1) Reception of SL-PRS or the processing priority is higher than the receiving or processing priority of other direct link channels or signals; (2) the receiving or processing priority of SL-PRS is lower than the receiving or processing priority of other direct link channels or signals; Wherein, the other direct link channels or signals include: direct link physical control channel PSCCH, direct link physical shared channel PSSCH, direct link physical feedback channel PSFCH, and direct link channel status information reference signal SL CSI-RS. at least one of.

In this embodiment of the present application, the reception or processing priority rule is applied to all time slots within the first time window, or is applied to the time slots occupied by SL-PRS within the first time window ( In some embodiments, it is only applied in the time slots occupied by SL-PRS within the first time window).

In this way, the application of the receiving or processing priority rules can be diversified.

Wherein, within the first time window, it is supported to transmit periodic, semi-persistent or aperiodic SL-PRS in a broadcast, multicast or unicast manner; and/or, within the second time window, it is supported to transmit periodic, semi-persistent or aperiodic SL-PRS in a broadcast, multicast or unicast manner; Periodic, semi-persistent or aperiodic SL-PRS is transmitted in a broadcast, multicast or unicast manner; and/or, within the third time window, periodic SL-PRS is transmitted in a broadcast manner.

In this embodiment of the present application, the priority level of the second time window is associated with the priority level of the direct link positioning requirement. Wherein, among the plurality of second time windows, the terminal may apply a second time window with a higher priority level.

Wherein, the third time window occupies a semi-statically configured uplink time slot.

In this embodiment of the present application, the time slots occupied by the first time window, the second time window and/or the third time window are configured or pre-configured in a bitmap manner; and/or the first time window and/or the second time window is triggered or activated through low-layer signaling; and/or the priority type of the first time window and/or the priority level of the second time window is configured or preconfigured of.

The low-layer signaling may include: direct link control information SCI and/or media access control unit MAC CE, but is not limited to this.

In the embodiment of this application, the terminal supports at least one of the following: (1) SL-PRS has a higher priority than all other direct link channels or signals; (2) SL-PRS has a lower priority than all other direct link channels or signals. (3) The priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority; wherein, the other The pass-through link channel or signal includes: at least one of the pass-through link physical control channel PSCCH, the pass-through link physical shared channel PSSCH, the pass-through link physical feedback channel PSFCH, and the pass-through link channel status information reference signal SL CSI-RS.

The first priority may be a priority higher than or equal to the first threshold; the second priority may be a priority lower than the first threshold, but is not limited to this.

In the embodiment of the present application, the terminal uses any of the following options to indicate the priority processing options of the direct link positioning reference signals that it (the terminal) can support: Option 1, the terminal supports priority status 1 and Priority state 2; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signals; the priority state 2 is: the priority of SL-PRS is lower than that of all other direct links channel or signal; option 2, the terminal supports priority state 1, priority state 2 and priority state 3; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signal; the priority state 2 is: the priority of the SL-PRS is lower than other direct link channels or signals of the first priority, and higher than other direct link channels or signals of the second priority; the priority Level state 3 is: the priority of SL-PRS is lower than all other direct link channels or signals; option 3, the terminal supports priority state 1; the priority state 1 is: the priority of SL-PRS is higher than All other pass-through link channels or signals.

This clarifies the priority processing options supported by the terminal. This option can be determined based on terminal capabilities, but is not limited to this.

Wherein, the time window information includes: first indication information, the first indication information is used to indicate the generation object of the time window information; wherein the generation object includes: terminal, base station, roadside unit RSU and positioning At least one item in the server.

This allows the terminal to know the source of the time window information.

The following is an example of the information transmission method provided by the embodiment of the present application.

In response to the above technical problems, embodiments of the present application provide an information transmission method, which can be specifically implemented as a method for receiving a through-link positioning reference signal, which mainly involves: the terminal transmits data in the first time window, the second time window, and the third time window. Receive the direct link positioning reference signal within at least one time window such as the time window, wherein the time slot occupied by the first time window belongs to the direct link resource pool, and the time slot occupied by the second time window belongs to the direct link dedicated resource Pool, the time slot occupied by the third time window does not belong to the direct link resource pool and the direct link dedicated resource pool. The terminal performs terminal positioning based on the received direct link positioning reference signal. Specifically shown in Figure 5, it is a schematic diagram of terminal A sending a direct link positioning reference signal to terminals B1~B3 to complete its own positioning process. Among them, terminal A uses the configured time-frequency resources to send SL-PRS to terminals B1~B3 respectively. B3, after terminals B1 to B3 receive the SL-PRS, the measurement results are sent to terminal A to assist terminal A in completing positioning calculation.

Specifically, this plan involves the following parts:

Part 1, the first time window is located in the direct link resource pool;

(1) The time slot occupied by the first time window is the first time slot set, and the first time slot set is located in the direct link resource pool. The pass-through link resource pool is a resource pool used by terminals for pass-through link communication.

(2) In the first time window, specify the distance between the direct link positioning reference signal SL-PRS and other direct link channels or signals (PSCCH, PSSCH, PSFCH and/or SL CSI-RS) in the first time window. The first priority rule for signal or channel reception and processing (corresponding to the above reception or processing priority rule):

a) When the priority of SL-PRS is higher than that of PSCCH, PSSCH, PSFCH and/or SL CSI-RS, the terminal receives and processes SL-PRS first; the reception or processing priority corresponding to the above SL-PRS is higher than the above Reception or processing priority of other pass-through link channels or signals;

b) When the priority of SL-PRS is lower than that of PSCCH, PSSCH, PSFCH and/or SL CSI-RS, the terminal receives and processes PSCCH, PSSCH, PSFCH and/or SL CSI-RS first; corresponding to the above SL-PRS Reception or processing has a lower priority than other pass-through link channels or signals management priority.

(3) The first priority in the first time window includes at least the following two types:

a) Type 1: In all time slots within the first time window (ie: in any time slot in the first time slot set), the (pre)configured first priority rule is applied; corresponding to the above Receiving or processing priority rules apply to all time slots within the first time window;

b) Type 2: The (pre)configured first priority rule will be applied only in the time slots occupied by SL-PRS within the first time window. The reception or processing priority rules corresponding to the above are only applied to the time slots occupied by SL-PRS within the first time window.

(4) Within the first time window, periodic, semi-persistent or aperiodic SL-PRS is supported in broadcast, multicast or unicast mode.

(5) The first time slot set is a subset of the time slot set occupied by the direct link resource pool; different UEs can be configured with different first time windows.

Part 2, the second time window is located in the direct link dedicated resource pool;

(6) The time slots occupied by the second time window are the second time slot set, and the second time slot set is located in the direct link dedicated resource pool; the direct link dedicated resource pool is a resource pool used by the terminal only to transmit SL-PRS , a resource pool not used for pass-through link communication;

(7) The second time window has a priority level, which is associated with the priority level of the direct link positioning requirement. When a second time window with a high priority level collides with a second time window with a low priority level, the second time window with a high priority level may be applied first.

(8) In the second time window, periodic, semi-persistent or aperiodic SL-PRS is supported in broadcast, multicast or unicast mode.

(9) The second time slot set is a subset of the time slot set occupied by the direct link dedicated resource pool; different UEs can be configured with different second time windows.

Part three, the third time window is outside the resource pool;

(10) The time slots occupied by the third time window are the third time slot set. The third time slot set is excluded from the available time slots in the direct link resource pool or the direct link dedicated resource pool. The remaining time slots after exclusion It can be used in the direct link resource pool or the direct link dedicated resource pool; the third time slot set corresponding to the above is not used in the direct link resource pool or the direct link dedicated resource pool;

(11) The third time window occupies the semi-statically configured uplink time slot.

(12) The third time slot set is only used for transmitting SL-PRS, not for direct link data transmission, nor for transmitting S-SSB.

(13) In the third time window, periodic SL-PRS is supported in broadcast mode.

Part 4, configure the first, second or third time window;

(14) (Pre-)configure the time slot occupied by the first time window, the second time window or the third time window in the form of a bitmap; corresponding to the above-mentioned first time window, second time window and/or third time The time slot occupied by the window is configured or preconfigured in a bitmap manner.

(15) Trigger or activate the first time window or the second time window through low-layer signaling (SCI and/or MAC CE).

(16) Configure or pre-configure the priority type of the first time window and/or the priority level of the second time window.

Part 5: The terminal’s ability to support the first time window;

(17) Within the first time window, according to the capabilities of the terminal, the terminal uses (at least one of) the following three options to indicate the priority processing option of the direct link positioning reference signal that it can support (ie: option 1, option 2 or option 3):

a) Option 1: The terminal indicates that it supports the following two priority states:

i. State 1: SL-PRS has a higher priority than all PSCCH, PSSCH, PSFCH and/or SL CSI-RS; corresponding to the above-mentioned SL-PRS has a higher priority than all other direct link channels or signals;

ii. State 2: The priority of SL-PRS is lower than all PSCCH, PSSCH, PSFCH and/or SL CSI-RS; the priority corresponding to the above SL-PRS is lower than all other direct link channels or signals;

b) Option 2: The terminal indicates that it supports the following three priority states:

i. State 1: SL-PRS has a higher priority than all PSCCH, PSSCH, PSFCH and/or SL CSI-RS; corresponding to the above-mentioned SL-PRS has a higher priority than all other direct link channels or signals;

ii. State 2: The priority of SL-PRS is lower than "PSCCH, PSSCH and/or PSFCH with a priority higher than a certain threshold" and higher than other PSCCH, PSSCH, PSFCH and/or SL CSI-RS; corresponding to the above The priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority;

iii. State 3: The priority of SL-PRS is lower than all PSCCH, PSSCH, PSFCH and/or SL CSI-RS; the priority corresponding to the above SL-PRS is lower than all other direct link channels or signals;

c) Option 3: The terminal indicates that it supports the following single priority states:

i. State 1: SL-PRS has a higher priority than all PSCCH, PSSCH, PSFCH and/or SL CSI-RS; corresponding to the above SL-PRS has a higher priority than all other direct link channels or signals.

Part 6: Source and type indication of time window configuration information (corresponding to the above time window information);

(18) Other terminals, base stations, RSUs or positioning servers (corresponding to the above-mentioned first device) can send time window configuration information to the terminal;

(19) The time window configuration information includes first indication information used to indicate the source of the sent time window configuration information (corresponding to the above-mentioned first indication information used to indicate the generation object of the time window information), wherein at least Include one of the following sources:

a) terminal;

b) Base station;

c)RSU;

d) Locate the server.

Part 7: Terminal location calculation (corresponding to the above-mentioned determination of the location information of the terminal based on the received direct link positioning reference signal);

(20) If it is a terminal (UE-based) positioning solution, the terminal receives S-PRS and performs measurements in at least one time window such as the first time window, the second time window, and the third time window. The terminal performs measurements according to the S-PRS The measurement results complete the terminal position calculation. Corresponding to the above, the received direct link positioning reference signal is measured; based on the measurement results, the location information of the terminal is obtained.

(21) If it is a terminal-assisted (UE-assisted) positioning solution, the terminal receives S-PRS and performs measurements in at least one time window such as the first time window, the second time window, and the third time window. The terminal will S-PRS The measurement results are sent to the positioning calculation unit, which completes the terminal position calculation based on the S-PRS measurement results and other information. Corresponding to the above, the received direct link positioning reference signal is measured; the measurement result is sent to the positioning solution unit, and the positioning solution unit is used to obtain the location information of the terminal according to the measurement result.

Specific examples of solutions provided by the embodiments of this application are given below.

Example 1 (the first time window is located in the direct link resource pool):

The terminal receives the direct link positioning reference signal within a first time window, where the time slot occupied by the first time window belongs to the direct link resource pool. The terminal locates the reference information based on the received direct link number to perform terminal positioning.

The time slots occupied by the first time window are the first time slot set, and the first time slot set is located in the direct link resource pool. The pass-through link resource pool is a resource pool used by terminals for pass-through link communication.

Within the first time window, it is supported to send periodic, semi-persistent or aperiodic SL-PRS in broadcast, multicast or unicast mode.

The first time slot set is a subset of the time slot set occupied by the direct link resource pool; different UEs can be configured with different first time windows.

For example: As shown in the third row of "available time slots for direct link" in Figure 6, each long square represents a time slot, and there are 20 time slots in total. The time slots filled with slashes represent the set of time slots used for S-SSB transmission (ie: the direct link synchronization slot set {3,7,11,15,19}, the first row of time slots in Figure 6), except for the slashes All time slots other than line-filled time slots are pass-through link resource pool time slot sets (i.e.: pass-through link resource pool time slot set {0,1,2,4,5,6,8,9, 10,12,13,14,16,17,18}, the second row of time slots in Figure 6), these time slots can be used for direct link communication. Therefore, the first time window is defined in the set of direct link resource pool time slots. The first time window occupies the time slot {1,5,9,13,17}, that is, the first time slot set is {1,5,9,13,17}. At the same time, the first time window can be used for transmission SL-PRS can also be used to transmit direct link communication channels or signals such as PSCCH, PSSCH, PSFCH and/or SL CSI-RS. In this way, within the first time window, a collision between SL-PRS and other direct link communication channels or signals may occur, that is, both parties transmit simultaneously in the same time slot. Therefore, it is necessary to define the relationship between the two. Transmission priority rules, this is the first priority rule, that is:

In the first time window, the signals or channels between the direct link positioning reference signal SL-PRS and other direct link channels or signals (PSCCH, PSSCH, PSFCH and/or SL CSI-RS) in the first time window are specified First priority rules for receipt and processing:

a) When the priority of SL-PRS is higher than PSCCH, PSSCH, PSFCH and/or SL CSI-RS, the terminal receives and processes SL-PRS first;

b) When the priority of SL-PRS is lower than that of PSCCH, PSSCH, PSFCH and/or SL CSI-RS, the terminal receives and processes PSCCH, PSSCH, PSFCH and/or SL CSI-RS first.

In addition, since only part of the time slots in the first time window may be occupied by SL-PRS, for example, only time slots {1,9,17} among the time slots {1,5,9,13,17} occupied by the first time window }Occupied by SL-PRS. Then, you need to consider whether the first priority rule only applies to the time slots {1,9,17} occupied by SL-PRS, It is still applicable to all time slots {1,5,9,13,17} in the first time window. If it is applicable to all time slots, the terminal can continue processing in the time slot {5,13} that does not receive SL-PRS. Previously received SL-PRS without being affected by other pass-through link channels or signals.

Therefore, the first priority in the first time window includes at least the following two types:

a) Type 1: In all time slots within the first time window (that is, in any time slot in the first time slot set), the (pre)configured first priority rule is applied;

b) Type 2: The (pre)configured first priority rule will be applied only in the time slots occupied by SL-PRS within the first time window.

From the above, in this example, the terminal can receive the direct link positioning reference signal within the first time window, which helps the terminal improve the direct link positioning accuracy and also reduces the direct link positioning delay. At the same time, the introduction of the first priority prevents the first time window from affecting the high-priority communication services of the direct link, thus balancing the requirements of direct link communication and direct link positioning.

Example 2 (the second time window is located in the direct link dedicated resource pool):

The terminal receives the direct link positioning reference signal in the second time window, where the time slot occupied by the second time window belongs to the direct link dedicated resource pool. The terminal performs terminal positioning based on the received direct link positioning reference signal.

Among them, the time slots occupied by the second time window are the second time slot set, and the second time slot set is located in the direct link dedicated resource pool; the direct link dedicated resource pool is a resource pool used by the terminal only to transmit SL-PRS. Resource pool not used for pass-through link communication.

In the second time window, it is supported to send periodic, semi-persistent or aperiodic SL-PRS in broadcast, multicast or unicast mode.

The second time slot set is a subset of the time slot set occupied by the direct link dedicated resource pool; different UEs can be configured with different second time windows.

For example: As shown in the fourth row of "available time slots for direct link" in Figure 7, each long square represents a time slot, and there are 20 time slots in total. The time slots filled with slashes represent the time slot set used for S-SSB transmission (ie: the direct link synchronization time slot set {3, 7, 11, 15, 19}, the first row of time slots in Figure 7). In addition to the synchronization slots filled with slashes, there are also diamond-filled slots, which represent the direct link dedicated resource pool slot set (ie: the direct link dedicated resource pool slot set {1,5,9, 13,17}, the second row of time slots in Figure 7). Except for synchronization slots filled with slashes and dedicated slots filled with diamonds, the remaining slots is the direct link resource pool time slot set (ie: the direct link resource pool time slot set {0,2,4,6,8,10,12,14,16,18}, the third row of time slots in Figure 7 ), these time slots can be used for pass-through link communications. The second time window is defined in the direct link dedicated resource pool time slot set. The second time window occupies time slots {1,5,9,13,17}, that is, the second time slot set is {1,5,9,13,17}. Since the direct link dedicated resource pool can only be used to transmit SL-PRS and cannot transmit other direct link communication channels or signals, defining the second time window in the dedicated resource pool can avoid SL-PRS and PSCCH, Collision of direct link communication channels or signals such as PSSCH, PSFCH and/or SL CSI-RS. However, in the second time window, a collision between two SL-PRS may occur, that is, both parties transmit simultaneously in the same time slot. Therefore, it is necessary to define the transmission priority rules between the two. , this is the second priority rule, that is:

The second time window has a priority level and is associated with the through link positioning requirement priority level. When a second time window with a high priority level collides with a second time window with a low priority level, the second time window with a high priority level may be applied first.

In this example, the terminal can receive the direct link positioning reference signal within the second time window, which helps the terminal improve the direct link positioning accuracy and also reduces the direct link positioning delay. At the same time, because the second time window is located in the dedicated resource pool, the SL-PRS and other direct link channels or signals are isolated from each other, thus avoiding the mutual influence between the direct link communication and the direct link positioning.

Example 3 (The third time window is outside the resource pool. Example 3 uses the third time slot set to transmit SL-PRS. The time slots occupied by the third time slot set do not belong to the direct link resource pool and the direct link dedicated resource pool) :

The terminal receives the direct link positioning reference signal in the third time window, where the time slot occupied by the third time window does not belong to the direct link resource pool and the direct link dedicated resource pool. The terminal performs terminal positioning based on the received direct link positioning reference signal.

Among them, the time slots occupied by the third time window are the third time slot set. The third time slot set is excluded from the available time slots in the direct link resource pool or the direct link dedicated resource pool. The remaining time slots after the exclusion are available. In the direct link resource pool or direct link dedicated resource pool;

The third time window occupies a semi-statically configured uplink time slot.

The third set of time slots is only used for transmitting SL-PRS, not for direct link data transmission, nor for transmitting S-SSB.

In the third time window, it is supported to send periodic SL-PRS in a broadcast manner.

For example: As shown in the fifth row of "available time slots for direct links" in Figure 8, each long square represents a time slot, and there are 20 time slots in total. The time slots filled with slashes represent the time slot set used for S-SSB transmission (ie: the direct link synchronization time slot set {3, 7, 11, 15, 19}, the first row of time slots in Figure 8). In addition to the synchronization time slots filled with slashes, there are also time slots filled with squares. These time slots represent the time slots occupied by the third time window (ie: the third time slot set {2,6,10,14,18 }, the second row of time slots in Figure 8). There are also diamond-shaped filled time slots, which represent the time slots occupied by the direct link dedicated resource pool (ie: the direct link dedicated resource pool time slot set {1,5,9,13,17}, in Figure 8 third row time slot). In addition to the above time slot set, the remaining time slots are the direct link resource pool time slot set (ie: the direct link resource pool time slot set {0,4,8,12,16}, the fourth row in Figure 8 time slots) that can be used for pass-through link data communications. Since the third time window can only be used to transmit SL-PRS and cannot transmit other direct link communication channels or signals, the third time window is defined outside the direct link resource pool and the direct link dedicated resource pool. Collision between SL-PRS and direct link communication channels or signals such as PSCCH, PSSCH, PSFCH and/or SL CSI-RS can be avoided. Since the configuration of the third time window is relatively fixed, within the third time window, periodic SL-PRS is supported in a broadcast manner, that is, all terminals receive the same SL-PRS.

From the above, in this example, the terminal can receive the direct link positioning reference signal within the third time window, which helps the terminal improve the direct link positioning accuracy and also reduces the direct link positioning delay. At the same time, since the third time window is located outside the direct link resource pool, the SL-PRS and other direct link channels or signals are isolated from each other, thus avoiding the mutual influence between the direct link communication and the direct link positioning. .

Example 4 (Configuring the first time window in bitmap format):

The terminal receives the direct link positioning reference signal within a first time window, where the time slot occupied by the first time window belongs to the direct link resource pool. The terminal performs terminal positioning based on the received direct link positioning reference signal.

The first time slot set is a subset of the time slot set occupied by the direct link resource pool; different UEs can be configured with different first time windows.

(Pre-)configure the time slot occupied by the first time window in the form of a bitmap;

The first time window is triggered or activated through low-layer signaling (SCI and/or MAC CE).

For example: As shown in the third row of "direct link available time slots" in Figure 9, each long square represents a time slot, and there are 20 time slots in total. In this way, a 20-bit In a bitmap, each time slot corresponds to a bit in the bitmap. If it is assumed that a certain time slot is used by a certain time slot set, it is set to 1 in the bitmap corresponding to the time slot set. If it is not used by a certain time slot set (that is, there is no box in the corresponding position in the picture), it is set in the bitmap corresponding to the time slot set. The bitmap corresponding to this time slot set is set to 0, then:

The bitmap corresponding to the direct link resource pool (second row in Figure 9) is: {1110111011101110};

The bitmap corresponding to the first time window (the second row of diamond filled time slots in Figure 9) is: {0100010001000100}.

From the above, in this example, the first time window can be configured using a bitmap, which is intuitive and efficient.

Example 5 (the terminal’s ability to support the first time window):

The terminal receives the direct link positioning reference signal within a first time window, where the time slot occupied by the first time window belongs to the direct link resource pool. The terminal performs terminal positioning based on the received direct link positioning reference signal.

Among them, because terminals have different capabilities, the terminals may support different priority states. For example, a terminal with strong capabilities can recognize and support three priority states, while a terminal with weak capabilities may only support one priority state. Therefore, within the first time window, according to the capabilities of the terminal, the terminal can use (at least one of) the following three options to indicate the priority processing option of the direct link positioning reference signal that it can support (ie: option 1, option 2 or option 3):

a) Option 1: The terminal indicates that it supports the following two priority states:

i. State 1: SL-PRS has a higher priority than all PSCCH, PSSCH, PSFCH and/or SL CSI-RS;

ii. State 2: SL-PRS has a lower priority than all PSCCH, PSSCH, PSFCH and/or SL CSI-RS;

b) Option 2: The terminal indicates that it supports the following three priority states:

i. State 1: SL-PRS has a higher priority than all PSCCH, PSSCH, PSFCH and/or SL CSI-RS;

ii. State 2: The priority of SL-PRS is lower than PSCCH, PSSCH and/or PSFCH whose priority is higher than a certain threshold, but higher than other PSCCH, PSSCH, PSFCH and/or SL CSI-RS;

iii. State 3: SL-PRS has a lower priority than all PSCCH, PSSCH, PSFCH and/or SL CSI-RS;

c) Option 3: The terminal indicates that it supports the following single priority states:

i. State 1: SL-PRS has a higher priority than all PSCCH, PSSCH, PSFCH and/or SL CSI-RS.

From the above, in this example, the terminal may support different priority states according to its capabilities. Using the solution in this example, the priority states it supports can be reported through the terminal capabilities. You can configure the first time window in Adapt to different terminals according to priority.

Example 6 (source and type indication of time window configuration information):

The terminal receives the direct link positioning reference signal in at least one time window such as the first time window, the second time window and the third time window, wherein the time slot occupied by the first time window belongs to the direct link resource pool, and the The time slots occupied by the second time window belong to the direct link dedicated resource pool, and the time slots occupied by the third time window do not belong to the direct link resource pool and the direct link dedicated resource pool. The terminal performs terminal positioning based on the received direct link positioning reference signal.

Among them, according to different scenarios, other terminals, base stations, RSUs or positioning servers can send time window configuration information to the terminal. For example, in the coverage scenario, since the terminal is within the signal coverage of the base station or positioning server, the base station or positioning server can send the time window configuration information to the terminal. In out-of-coverage scenarios, since the terminal cannot receive signals from the base station or positioning server, other terminals or RSUs can only send time window configuration information to the terminal.

In order to facilitate the terminal to use the time window configuration information, the time window configuration information may include first indication information to indicate the source of the sent time window configuration information, which may include at least one of the following sources:

a) terminal;

b) Base station;

c)RSU;

d) Locate the server.

For example: As shown in Figure 10, terminal A and terminal B are both within the coverage of the base station, and the base station can send time window configuration information to terminal A, and the time window configuration information includes the source of The first indication information of the base station. And terminal C is located outside the coverage area of the base station, so The time window configuration information can only be forwarded by terminal A to terminal C, and the time window configuration information includes first indication information whose source is the base station (that is, the time window configuration information is generated by the base station). After obtaining the time window configuration information, terminal A and terminal C can send SL-PRS within the time window.

From the above, using the technical solution in this example, the first indication information can be included in the time window configuration information to indicate the source of the sent time window configuration information, so that the terminal can know the source of the time window configuration information. And the selection and transmission of S-PRS resources are completed according to the source of the time window configuration information (that is, the corresponding time resources are selected in the corresponding time window), which helps the terminal to better position the direct link.

In summary, the embodiments of this application provide a method for receiving a direct link positioning reference signal. Compared with related technologies, using the time window configuration scheme and related priority rules proposed by this application can enable the terminal to The direct link positioning reference signal is received within the window, the second time window or the third time window, which helps the terminal improve the positioning accuracy of the direct link and also reduces the positioning delay of the direct link. At the same time, it will not affect the high-priority communication services of the direct link, thus balancing the needs of direct link communication and direct link positioning.

The embodiment of the present application also provides an information transmission device. The information transmission device is a terminal, as shown in Figure 11, including a memory 111, a transceiver 112, and a processor 113:

Memory 111 is used to store computer programs; transceiver 112 is used to send and receive data under the control of the processor 113; processor 113 is used to read the computer program in the memory 111 and perform the following operations:

In at least one time window among the first time window, the second time window and the third time window, receive the direct link positioning reference signal through the transceiver 112;

Wherein, the time slots occupied by the first time window belong to the direct link resource pool, the time slots occupied by the second time window belong to the direct link dedicated resource pool, and the time slots occupied by the third time window belong to the direct link resource pool. Does not belong to the direct link resource pool and direct link dedicated resource pool.

The information transmission device provided by the embodiment of the present application receives the direct link positioning reference signal in at least one time window among the first time window, the second time window and the third time window; wherein, the first time window The time slot occupied by the window belongs to the direct link resource pool, the time slot occupied by the second time window belongs to the direct link dedicated resource pool, and the time slot occupied by the third time window does not belong to the direct link Resource pool and direct link dedicated resource pool; can support terminals to accurately determine direct link The reception of the reference signal helps to improve the positioning accuracy of the direct link and reduce the positioning delay of the direct link; it effectively solves the problem in related technologies that the positioning reference signal for the direct link cannot be accurately received.

Specifically, the transceiver 112 is used to receive and send data under the control of the processor 113.

In FIG. 11 , the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 113 and various circuits of the memory represented by memory 111 are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein. The bus interface provides the interface. The transceiver 112 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, etc. Transmission medium. For different user equipment, the user interface 114 can also be an interface capable of externally connecting internal and external required equipment. The connected equipment includes but is not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

The processor 113 is responsible for managing the bus architecture and general processing, and the memory 111 can store data used by the processor 113 when performing operations.

In some embodiments, the processor 113 may be a central processing unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex Complex Programmable Logic Device (CPLD), the processor can also adopt a multi-core architecture.

The processor is configured to execute any of the methods provided by the embodiments of the present application according to the obtained executable instructions by calling the computer program stored in the memory. The processor and memory can also be physically separated.

Further, the operation further includes: receiving the first device through the transceiver before receiving the direct link positioning reference signal in at least one of the first time window, the second time window and the third time window. The time window information sent; the first device includes: at least one of a terminal, a base station, a road side unit RSU and a positioning server; or, according to the preconfiguration, the time window information is obtained; wherein, the first time window , at least one time window in the second time window and the third time window Within, receiving the through link positioning reference signal includes: receiving the through link positioning reference signal in at least one time window among the first time window, the second time window and the third time window according to the time window information.

Wherein, the time slots occupied by the first time window are the first time slot set, and the first time slot set is located in the direct link resource pool; the direct link resource pool is used by the terminal for direct link communication. Resource pool; and/or, the time slots occupied by the second time window are a second time slot set, and the second time slot set is located in a direct link dedicated resource pool; the direct link dedicated resource pool is a terminal A resource pool used to transmit the direct link positioning reference signal SL-PRS; and/or the time slot occupied by the third time window is a third time slot set, and the third time slot set is not used for the direct link path resource pool or direct link dedicated resource pool.

In the embodiment of this application, the first time slot set is a subset of the time slot set occupied by the direct link resource pool; different terminals correspond to different first time windows; and/or the second time slot The slot set is a subset of the time slot set occupied by the direct link dedicated resource pool; different terminals correspond to different second time windows.

Wherein, the third time slot set is used for transmitting SL-PRS.

In the embodiment of this application, the reception or processing priority rules between the direct link positioning reference signal SL-PRS and other direct link channels or signals in the first time window include any of the following: SL-PRS The receiving or processing priority is higher than the receiving or processing priority of other direct link channels or signals; the receiving or processing priority of SL-PRS is lower than the receiving or processing priority of other direct link channels or signals; wherein, the The other direct link channels or signals include: at least one of the direct link physical control channel PSCCH, the direct link physical shared channel PSSCH, the direct link physical feedback channel PSFCH, and the direct link channel status information reference signal SL CSI-RS. item.

Wherein, the reception or processing priority rule is applied to all time slots within the first time window, or is applied to time slots occupied by SL-PRS within the first time window.

In the embodiment of the present application, within the first time window, periodic, semi-persistent or aperiodic SL-PRS transmission in a broadcast, multicast or unicast manner is supported; and/or, within the second time window, Within the third time window, support the transmission of periodic, semi-persistent or aperiodic SL-PRS in a broadcast, multicast or unicast manner; and/or, within the third time window, support the transmission of periodic SL-PRS in a broadcast manner .

Wherein, the priority level of the second time window is associated with the priority level of the direct link positioning requirement.

In this embodiment of the present application, the third time window occupies a semi-statically configured uplink time slot.

Wherein, the time slots occupied by the first time window, the second time window and/or the third time window are configured or pre-configured in a bitmap manner; and/or the first time window and/or the third time window The second time window is triggered or activated through low-layer signaling; and/or the priority type of the first time window and/or the priority level of the second time window are configured or preconfigured.

In the embodiment of this application, the terminal supports at least one of the following: SL-PRS has a higher priority than all other direct link channels or signals; SL-PRS has a lower priority than all other direct link channels or signals; SL -The priority of the PRS is lower than other direct link channels or signals of the first priority level, but higher than other direct link channels or signals of the second priority level; wherein, the other direct link channels or signals include: direct link channels or signals At least one of the link physical control channel PSCCH, the direct link physical shared channel PSSCH, the direct link physical feedback channel PSFCH, and the direct link channel status information reference signal SL CSI-RS.

Wherein, the terminal uses any of the following options to indicate the priority processing option of the direct link positioning reference signal that the terminal can support: Option 1, the terminal supports priority state 1 and priority state 2; the priority State 1 is: the priority of SL-PRS is higher than all other direct link channels or signals; the priority state 2 is: the priority of SL-PRS is lower than all other direct link channels or signals; option 2, so The terminal supports priority state 1, priority state 2 and priority state 3; the priority state 1 is: SL-PRS has a higher priority than all other direct link channels or signals; the priority state 2 is : The priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority; the priority state 3 is: SL-PRS The priority is lower than all other direct link channels or signals; option 3, the terminal supports priority state 1; the priority state 1 is: the priority of SL-PRS is higher than all other direct link channels or signals.

In the embodiment of the present application, the time window information includes: first indication information, the first indication information is used to indicate the generation object of the time window information; wherein the generation object includes: terminal, base station, roadside At least one of the unit RSU and the positioning server.

Further, the operation further includes: in at least one time window among the first time window, the second time window and the third time window, after receiving the through link positioning reference signal, based on the received through link positioning reference signal , determine the location information of the terminal.

Wherein, determining the location information of the terminal based on the received direct link positioning reference signal includes: measuring the received direct link positioning reference signal; obtaining the location information of the terminal according to the measurement result; or, Measure the received direct link positioning reference signal; send the measurement result to the positioning calculation unit, and use the positioning calculation unit to obtain the location information of the terminal according to the measurement result.

It should be noted here that the above-mentioned equipment provided by the embodiments of the present application can implement all the method steps implemented by the above-mentioned terminal-side method embodiments, and can achieve the same technical effect. The implementation of the methods in this embodiment will no longer be carried out. The same parts and beneficial effects will be described in detail.

The embodiment of the present application also provides an information transmission device. The information transmission device is a first device, as shown in Figure 12 (the first device is implemented as a network device as an example, and the network device is such as a base station, a positioning server, etc.) , including memory 121, transceiver 122, processor 123:

Memory 121 is used to store computer programs; transceiver 122 is used to send and receive data under the control of the processor 123; processor 123 is used to read the computer program in the memory 121 and perform the following operations:

Through the transceiver 122, time window information is sent to the terminal; the time window information is information for at least one of the first time window, the second time window and the third time window;

Wherein, the time slots occupied by the first time window belong to the direct link resource pool, the time slots occupied by the second time window belong to the direct link dedicated resource pool, and the time slots occupied by the third time window belong to the direct link resource pool. Does not belong to the direct link resource pool and direct link dedicated resource pool;

The first device includes: at least one of a terminal, a base station, a roadside unit RSU, and a positioning server.

The information transmission device provided by the embodiment of the present application sends time window information to the terminal; the time window information is information for at least one of the first time window, the second time window and the third time window; wherein, The time slots occupied by the first time window belong to the direct link resource pool, the time slots occupied by the second time window belong to the direct link dedicated resource pool, and the time slots occupied by the third time window do not belong to the direct link resource pool. The direct link resource pool and the direct link dedicated resource pool; the first device includes: at least one of a terminal, a base station, a road side unit RSU and a positioning server; and can support the terminal as the recipient to accurately perform the direct link The reception of positioning reference signals helps to improve the positioning accuracy of the direct link and reduce the positioning delay of the direct link; it is a good solution to the inability to accurately achieve targeting in related technologies. Issues with the reception of direct link positioning reference signals.

Specifically, the transceiver 122 is used to receive and send data under the control of the processor 123.

In FIG. 12 , the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 123 and various circuits of the memory represented by memory 121 are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein. The bus interface provides the interface. The transceiver 122 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media. The processor 123 is responsible for managing the bus architecture and general processing, and the memory 121 can store data used by the processor 123 when performing operations.

The processor 123 may be a central processing unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), the processor can also adopt a multi-core architecture.

It should be noted here that the first device can also be implemented as a terminal. For details, please refer to the relevant content in Figure 11, which will not be described again here.

Wherein, the time slots occupied by the first time window are the first time slot set, and the first time slot set is located in the direct link resource pool; the direct link resource pool is used by the terminal for direct link communication. Resource pool; and/or, the time slots occupied by the second time window are a second time slot set, and the second time slot set is located in a direct link dedicated resource pool; the direct link dedicated resource pool is a terminal A resource pool used to transmit the direct link positioning reference signal SL-PRS; and/or the time slot occupied by the third time window is a third time slot set, and the third time slot set is not used for the direct link path resource pool or direct link dedicated resource pool.

In the embodiment of this application, the first time slot set is a subset of the time slot set occupied by the direct link resource pool; different terminals correspond to different first time windows; and/or the second time slot The slot set is a subset of the time slot set occupied by the direct link dedicated resource pool; different terminals correspond to different second time windows.

Wherein, the third time slot set is used for transmitting SL-PRS.

In the embodiment of this application, the reception or processing priority rules between the direct link positioning reference signal SL-PRS and other direct link channels or signals in the first time window include any of the following: SL-PRS The receiving or processing priority is higher than the receiving or processing priority of other direct link channels or signals; the receiving or processing priority of SL-PRS is lower than the receiving or processing priority of other direct link channels or signals; wherein, The other direct link channels or signals include: at least one of the direct link physical control channel PSCCH, the direct link physical shared channel PSSCH, the direct link physical feedback channel PSFCH, and the direct link channel status information reference signal SL CSI-RS. One item.

Wherein, the reception or processing priority rule is applied to all time slots within the first time window, or is applied to time slots occupied by SL-PRS within the first time window.

In the embodiment of the present application, within the first time window, periodic, semi-persistent or aperiodic SL-PRS transmission in a broadcast, multicast or unicast manner is supported; and/or, within the second time window, Within the third time window, support the transmission of periodic, semi-persistent or aperiodic SL-PRS in a broadcast, multicast or unicast manner; and/or, within the third time window, support the transmission of periodic SL-PRS in a broadcast manner .

Wherein, the priority level of the second time window is associated with the through link positioning requirement priority level.

In this embodiment of the present application, the third time window occupies a semi-statically configured uplink time slot.

Wherein, the time slots occupied by the first time window, the second time window and/or the third time window are configured or pre-configured in a bitmap manner; and/or the first time window and/or the third time window The second time window is triggered or activated through low-layer signaling; and/or the priority type of the first time window and/or the priority level of the second time window are configured or preconfigured.

In the embodiment of this application, the terminal supports at least one of the following: SL-PRS has a higher priority than all other direct link channels or signals; SL-PRS has a lower priority than all other direct link channels or signals; SL -The priority of the PRS is lower than other direct link channels or signals of the first priority level, but higher than other direct link channels or signals of the second priority level; wherein, the other direct link channels or signals include: direct link channels or signals At least one of the link physical control channel PSCCH, the direct link physical shared channel PSSCH, the direct link physical feedback channel PSFCH, and the direct link channel status information reference signal SL CSI-RS.

Wherein, the terminal uses any of the following options to indicate the priority processing option of the direct link positioning reference signal that the terminal can support: Option 1, the terminal supports priority status 1 and Priority state 2; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signals; the priority state 2 is: the priority of SL-PRS is lower than that of all other direct links channel or signal; option 2, the terminal supports priority state 1, priority state 2 and priority state 3; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signal; the priority state 2 is: the priority of the SL-PRS is lower than other direct link channels or signals of the first priority, and higher than other direct link channels or signals of the second priority; the priority Level state 3 is: the priority of SL-PRS is lower than all other direct link channels or signals; option 3, the terminal supports priority state 1; the priority state 1 is: the priority of SL-PRS is higher than All other pass-through link channels or signals.

In the embodiment of the present application, the time window information includes: first indication information, the first indication information is used to indicate the generation object of the time window information; wherein the generation object includes: terminal, base station, roadside At least one of the unit RSU and the positioning server.

It should be noted here that the above-mentioned device provided by the embodiment of the present application can implement all the method steps implemented by the above-mentioned first device-side method embodiment, and can achieve the same technical effect. Here, no further explanation will be given here. The same parts and beneficial effects of the method embodiments will be described in detail.

The embodiment of the present application also provides an information transmission device, applied to a terminal, as shown in Figure 13, including:

The first receiving unit 131 is configured to receive the through link positioning reference signal in at least one of the first time window, the second time window and the third time window;

Wherein, the time slots occupied by the first time window belong to the direct link resource pool, the time slots occupied by the second time window belong to the direct link dedicated resource pool, and the time slots occupied by the third time window belong to the direct link resource pool. Does not belong to the direct link resource pool and direct link dedicated resource pool.

The information transmission device provided by the embodiment of the present application receives the direct link positioning reference signal in at least one time window among the first time window, the second time window and the third time window; wherein, the first time window The time slot occupied by the window belongs to the direct link resource pool, the time slot occupied by the second time window belongs to the direct link dedicated resource pool, and the time slot occupied by the third time window does not belong to the direct link Resource pool and direct link dedicated resource pool; can support the terminal to accurately receive the direct link positioning reference signal, help improve the direct link positioning accuracy and reduce the direct link positioning delay; well solve the problem in related technologies Unable to accurately achieve reception of positioning reference signals for direct link question.

Further, the information transmission device further includes: a second receiving unit configured to receive the through link positioning reference signal in at least one of the first time window, the second time window and the third time window. Before, receiving the time window information sent by the first device; the first device includes: at least one of a terminal, a base station, a roadside unit RSU, and a positioning server; or, a first processing unit configured to perform the operation in the first time window. In at least one of the second time window and the third time window, before receiving the through link positioning reference signal, time window information is obtained according to the preconfiguration; wherein, in the first time window, the second time window and receiving the direct link positioning reference signal within at least one time window in the third time window, including: according to the time window information, at least one time in the first time window, the second time window and the third time window. Within the window, the direct link positioning reference signal is received.

Wherein, the time slots occupied by the first time window are the first time slot set, and the first time slot set is located in the direct link resource pool; the direct link resource pool is used by the terminal for direct link communication. Resource pool; and/or, the time slots occupied by the second time window are a second time slot set, and the second time slot set is located in a direct link dedicated resource pool; the direct link dedicated resource pool is a terminal A resource pool used to transmit the direct link positioning reference signal SL-PRS; and/or the time slot occupied by the third time window is a third time slot set, and the third time slot set is not used for the direct link path resource pool or direct link dedicated resource pool.

In the embodiment of this application, the first time slot set is a subset of the time slot set occupied by the direct link resource pool; different terminals correspond to different first time windows; and/or the second time slot The slot set is a subset of the time slot set occupied by the direct link dedicated resource pool; different terminals correspond to different second time windows.

Wherein, the third time slot set is used for transmitting SL-PRS.

In the embodiment of this application, the reception or processing priority rules between the direct link positioning reference signal SL-PRS and other direct link channels or signals in the first time window include any of the following: SL-PRS The receiving or processing priority is higher than the receiving or processing priority of other direct link channels or signals; the receiving or processing priority of SL-PRS is lower than the receiving or processing priority of other direct link channels or signals; wherein, the The other direct link channels or signals include: at least one of the direct link physical control channel PSCCH, the direct link physical shared channel PSSCH, the direct link physical feedback channel PSFCH, and the direct link channel status information reference signal SL CSI-RS. item.

Wherein, the reception or processing priority rule is applied to all time slots within the first time window, or is applied to time slots occupied by SL-PRS within the first time window.

In the embodiment of the present application, within the first time window, periodic, semi-persistent or aperiodic SL-PRS transmission in a broadcast, multicast or unicast manner is supported; and/or, within the second time window, Within the third time window, support the transmission of periodic, semi-persistent or aperiodic SL-PRS in a broadcast, multicast or unicast manner; and/or, within the third time window, support the transmission of periodic SL-PRS in a broadcast manner .

Wherein, the priority level of the second time window is associated with the through link positioning requirement priority level.

In this embodiment of the present application, the third time window occupies a semi-statically configured uplink time slot.

Wherein, the time slots occupied by the first time window, the second time window and/or the third time window are configured or pre-configured in a bitmap manner; and/or the first time window and/or the third time window The second time window is triggered or activated through low-layer signaling; and/or the priority type of the first time window and/or the priority level of the second time window are configured or preconfigured.

In the embodiment of this application, the terminal supports at least one of the following: SL-PRS has a higher priority than all other direct link channels or signals; SL-PRS has a lower priority than all other direct link channels or signals; SL -The priority of the PRS is lower than other direct link channels or signals of the first priority level, but higher than other direct link channels or signals of the second priority level; wherein, the other direct link channels or signals include: direct link channels or signals At least one of the link physical control channel PSCCH, the direct link physical shared channel PSSCH, the direct link physical feedback channel PSFCH, and the direct link channel status information reference signal SL CSI-RS.

Wherein, the terminal uses any of the following options to indicate the priority processing option of the direct link positioning reference signal that the terminal can support: Option 1, the terminal supports priority state 1 and priority state 2; the priority State 1 is: the priority of SL-PRS is higher than all other direct link channels or signals; the priority state 2 is: the priority of SL-PRS is lower than all other direct link channels or signals; option 2, so The terminal supports priority state 1, priority state 2 and priority state 3; the priority state 1 is: SL-PRS has a higher priority than all other direct link channels or signals; the priority state 2 is : The priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority; the priority state 3 is: SL-PRS Lower priority than all other pass-through link channels or signals; Option 3, as described The terminal supports priority state 1; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signals.

In the embodiment of the present application, the time window information includes: first indication information, the first indication information is used to indicate the generation object of the time window information; wherein the generation object includes: terminal, base station, roadside At least one of the unit RSU and the positioning server.

Further, the information transmission device further includes: a first determining unit configured to receive the direct link positioning reference signal within at least one of the first time window, the second time window and the third time window. Afterwards, the location information of the terminal is determined based on the received direct link positioning reference signal.

Wherein, determining the location information of the terminal based on the received direct link positioning reference signal includes: measuring the received direct link positioning reference signal; obtaining the location information of the terminal according to the measurement result; or, Measure the received direct link positioning reference signal; send the measurement result to the positioning calculation unit, and use the positioning calculation unit to obtain the location information of the terminal according to the measurement result.

It should be noted here that the above-mentioned device provided by the embodiment of the present application can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect. The same as the method embodiment in this embodiment will no longer be used. The parts and beneficial effects will be described in detail.

The embodiment of the present application also provides an information transmission device, applied to the first device, as shown in Figure 14, including:

The first sending unit 141 is configured to send time window information to the terminal; the time window information is information for at least one of the first time window, the second time window, and the third time window;

Wherein, the time slots occupied by the first time window belong to the direct link resource pool, the time slots occupied by the second time window belong to the direct link dedicated resource pool, and the time slots occupied by the third time window belong to the direct link resource pool. Does not belong to the direct link resource pool and direct link dedicated resource pool;

The first device includes: at least one of a terminal, a base station, a roadside unit RSU, and a positioning server.

The information transmission device provided by the embodiment of the present application sends time window information to the terminal; the time window information is information for at least one of the first time window, the second time window and the third time window; wherein, The time slot occupied by the first time window belongs to the direct link resource pool, and the second time window The time slots occupied by the time window belong to the direct link dedicated resource pool, and the time slots occupied by the third time window do not belong to the direct link resource pool and the direct link dedicated resource pool; the first device includes: At least one of the terminal, base station, road side unit RSU and positioning server; can support the terminal as the receiver to accurately receive the through link positioning reference signal, which helps to improve the through link positioning accuracy and reduce the through link positioning accuracy. Time delay; it solves the problem in related technologies that the positioning reference signal for the direct link cannot be accurately received.

Wherein, the time slots occupied by the first time window are the first time slot set, and the first time slot set is located in the direct link resource pool; the direct link resource pool is used by the terminal for direct link communication. Resource pool; and/or, the time slots occupied by the second time window are a second time slot set, and the second time slot set is located in a direct link dedicated resource pool; the direct link dedicated resource pool is a terminal A resource pool used to transmit the direct link positioning reference signal SL-PRS; and/or the time slot occupied by the third time window is a third time slot set, and the third time slot set is not used for the direct link path resource pool or direct link dedicated resource pool.

In the embodiment of this application, the first time slot set is a subset of the time slot set occupied by the direct link resource pool; different terminals correspond to different first time windows; and/or the second time slot The slot set is a subset of the time slot set occupied by the direct link dedicated resource pool; different terminals correspond to different second time windows.

Wherein, the third time slot set is used for transmitting SL-PRS.

In the embodiment of this application, the reception or processing priority rules between the direct link positioning reference signal SL-PRS and other direct link channels or signals in the first time window include any of the following: SL-PRS The receiving or processing priority is higher than the receiving or processing priority of other direct link channels or signals; the receiving or processing priority of SL-PRS is lower than the receiving or processing priority of other direct link channels or signals; wherein, The other direct link channels or signals include: at least one of the direct link physical control channel PSCCH, the direct link physical shared channel PSSCH, the direct link physical feedback channel PSFCH, and the direct link channel status information reference signal SL CSI-RS. One item.

Wherein, the reception or processing priority rule is applied to all time slots within the first time window, or is applied to time slots occupied by SL-PRS within the first time window.

In the embodiment of the present application, within the first time window, periodic, semi-persistent or aperiodic SL-PRS transmission in a broadcast, multicast or unicast manner is supported; and/or, within the second time window, inside, branch support the transmission of periodic, semi-persistent or aperiodic SL-PRS in a broadcast, multicast or unicast manner; and/or, within the third time window, support the transmission of periodic SL-PRS in a broadcast manner.

Wherein, the priority level of the second time window is associated with the through link positioning requirement priority level.

In this embodiment of the present application, the third time window occupies a semi-statically configured uplink time slot.

Wherein, the time slots occupied by the first time window, the second time window and/or the third time window are configured or pre-configured in a bitmap manner; and/or the first time window and/or the third time window The second time window is triggered or activated through low-layer signaling; and/or the priority type of the first time window and/or the priority level of the second time window are configured or preconfigured.

In the embodiment of this application, the terminal supports at least one of the following: SL-PRS has a higher priority than all other direct link channels or signals; SL-PRS has a lower priority than all other direct link channels or signals; SL -The priority of the PRS is lower than other direct link channels or signals of the first priority level, but higher than other direct link channels or signals of the second priority level; wherein, the other direct link channels or signals include: direct link channels or signals At least one of the link physical control channel PSCCH, the direct link physical shared channel PSSCH, the direct link physical feedback channel PSFCH, and the direct link channel status information reference signal SL CSI-RS.

Wherein, the terminal uses any of the following options to indicate the priority processing option of the direct link positioning reference signal that the terminal can support: Option 1, the terminal supports priority state 1 and priority state 2; Priority state 1 is: SL-PRS has a higher priority than all other direct link channels or signals; priority state 2 is: SL-PRS has a lower priority than all other direct link channels or signals; Option 2 , the terminal supports priority state 1, priority state 2 and priority state 3; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signals; the priority state 2 is: the priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority; the priority state 3 is: SL- The priority of PRS is lower than that of all other direct link channels or signals; option 3, the terminal supports priority state 1; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or Signal.

In the embodiment of the present application, the time window information includes: first indication information, the first indication information is used to indicate the generation object of the time window information; wherein the generation object includes: terminal, At least one of a base station, a roadside unit RSU and a positioning server.

It should be noted here that the above-mentioned device provided by the embodiment of the present application can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect. The same as the method embodiment in this embodiment will no longer be used. The parts and beneficial effects will be described in detail.

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

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or contributes to the relevant technology, 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, It includes several instructions to cause a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in various embodiments of this application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code. .

Embodiments of the present application also provide a processor-readable storage medium that stores a computer program. The computer program is used to cause the processor to execute the above-mentioned terminal side or first device side. Information transmission method.

The processor-readable storage medium may be any available media or data storage device that the processor can access, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (Magneto-Optical, MO), etc.), Optical storage (such as Compact Disk (CD), Digital Video Disc (DVD), Blu-ray Disc (BD), High-Definition Versatile Disc (HVD), etc.), and Semiconductor memories (such as Read-Only Memory (ROM), Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read Only Memory, EEPROM), Non-volatile memory (NAND FLASH), solid state drive (Solid State Disk, SSD)), etc.

Among them, the implementation embodiments of the information transmission method on the terminal side or the first device side are applicable to the embodiments of the processor-readable storage medium, and can also achieve the same technical effect.

Those skilled in the art will understand that embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment that combines software and hardware aspects. Furthermore, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, magnetic disk storage and optical storage, etc.) embodying computer-usable program code therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each process and/or block in the flowchart illustrations and/or block diagrams, and combinations of processes and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a process or processes of a flowchart and/or a block or blocks of a block diagram.

These processor-executable instructions may also be stored in a processor-readable memory that causes a computer or other programmable data processing apparatus to operate in a particular manner, such that the generation of instructions stored in the processor-readable memory includes the manufacture of the instruction means product, the instruction device implements the function specified in one process or multiple processes in the flow chart and/or one block or multiple blocks in the block diagram.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby causing the computer or other programmable device to The instructions that are executed provide steps for implementing the functions specified in a process or processes of the flowchart diagrams and/or a block or blocks of the block diagrams.

It should be noted that it should be understood that the division of each module above is only a division of logical functions. In actual implementation, it can be fully or partially integrated into a physical entity, or it can also be physically separated. And these modules can all be implemented in the form of software calling through processing components; they can also all be implemented in the form of hardware; some modules can also be implemented in the form of software calling through processing components, and some modules can be implemented in the form of hardware. For example, the determination module can be a separately established processing element, or it can It is integrated and implemented in a certain chip of the above-mentioned device. In addition, it can also be stored in the memory of the above-mentioned device in the form of program code, and a certain processing element of the above-mentioned device calls and executes the function of the above determined module. The implementation of other modules is similar. In addition, all or part of these modules can be integrated together or implemented independently. The processing element described here may be an integrated circuit with signal processing capabilities. During the implementation process, each step of the above method or each of the above modules can be completed by instructions in the form of hardware integrated logic circuits or software in the processor element.

For example, each module, unit, sub-unit or sub-module may be one or more integrated circuits configured to implement the above method, such as: one or more application specific integrated circuits (Application Specific Integrated Circuit, ASIC), or one or Multiple microprocessors (digital signal processor, DSP), or one or more field programmable gate arrays (Field Programmable Gate Array, FPGA), etc. For another example, when one of the above modules is implemented in the form of a processing element scheduler code, the processing element can be a general-purpose processor, such as a central processing unit (Central Processing Unit, CPU) or other processors that can call the program code. For another example, these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).

The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the application described herein may be implemented, for example, in sequences other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, e.g., a process, method, system, product, or apparatus that encompasses a series of steps or units and need not be limited to those explicitly listed. Those steps or elements may instead include other steps or elements not expressly listed or inherent to the process, method, product or apparatus. In addition, the use of "and/or" in the description and claims indicates at least one of the connected objects, such as A and/or B and/or C, indicating the inclusion of A alone, B alone, C alone, and both A and B. There are 7 situations in which both B and C exist, both A and C exist, and A, B, and C all exist. Similarly, the use of "at least one of A and B" in this specification and in the claims should be understood to mean "A alone, B alone, or both A and B present."

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. In this way, if these modifications and variations of the present application fall within the scope of the claims of the present application and equivalent technologies, the present application is also intended to include these modifications and variations.

Claims (53)

An information transmission method, applied to terminals, including: Receive the direct link positioning reference signal within at least one of the first time window, the second time window and the third time window; Wherein, the time slots occupied by the first time window belong to the direct link resource pool, the time slots occupied by the second time window belong to the direct link dedicated resource pool, and the time slots occupied by the third time window belong to the direct link resource pool. Does not belong to the direct link resource pool and direct link dedicated resource pool. The information transmission method according to claim 1, wherein before receiving the direct link positioning reference signal within at least one of the first time window, the second time window and the third time window, it further includes: Receive time window information sent by a first device; the first device includes: at least one of a terminal, a base station, a roadside unit RSU, and a positioning server; Or, get the time window information according to the preconfiguration; Wherein, receiving the direct link positioning reference signal in at least one time window among the first time window, the second time window and the third time window includes: According to the time window information, the direct link positioning reference signal is received in at least one of the first time window, the second time window and the third time window. The information transmission method according to claim 1, wherein the time slot occupied by the first time window is a first time slot set, and the first time slot set is located in a direct link resource pool; the direct link The resource pool is the resource pool used by the terminal for direct link communication; And/or, the time slots occupied by the second time window are a second time slot set, and the second time slot set is located in a direct link dedicated resource pool; the direct link dedicated resource pool is used by the terminal for transmission Resource pool of direct link positioning reference signal SL-PRS; And/or, the time slots occupied by the third time window are a third time slot set, and the third time slot set is not used for the direct link resource pool or the direct link dedicated resource pool. The information transmission method according to claim 3, wherein the first time slot set is a subset of the time slot set occupied by the direct link resource pool; different terminals correspond to different first time windows; And/or, the second time slot set is a subset of the time slot set occupied by the direct link dedicated resource pool; different terminals correspond to different second time windows. The information transmission method according to claim 3, wherein the third time slot set is used to transmit SL-PRS. The information transmission method according to claim 1, wherein the reception or processing priority rules between the direct link positioning reference signal SL-PRS and other direct link channels or signals in the first time window include any of the following: One item: The reception or processing priority of the SL-PRS is higher than the reception or processing priority of the other direct link channels or signals; The reception or processing priority of SL-PRS is lower than the reception or processing priority of other direct link channels or signals; Wherein, the other direct link channels or signals include: direct link physical control channel PSCCH, direct link physical shared channel PSSCH, direct link physical feedback channel PSFCH, and direct link channel status information reference signal SL CSI-RS. at least one of. The information transmission method according to claim 6, wherein the receiving or processing priority rule is applied in all time slots within the first time window, or is applied by SL- in the time slot occupied by PRS. The information transmission method according to claim 1, wherein within the first time window, periodic, semi-persistent or aperiodic SL-PRS transmission in a broadcast, multicast or unicast manner is supported; and/or, within the second time window, support the transmission of periodic, semi-persistent or aperiodic SL-PRS in a broadcast, multicast or unicast manner; And/or, within the third time window, supporting periodic SL-PRS transmission in a broadcast manner. The information transmission method according to claim 1, wherein the priority level of the second time window is associated with the through link positioning requirement priority level. The information transmission method according to claim 1, wherein the third time window occupies a semi-statically configured uplink time slot. The information transmission method according to claim 1 or 3, wherein the time slots occupied by the first time window, the second time window and/or the third time window are configured or preconfigured in a bitmap manner; And/or, the first time window and/or the second time window are triggered or activated through low-layer signaling; And/or, the priority type of the first time window and/or the priority level of the second time window are configured or preconfigured. The information transmission method according to claim 1, wherein the terminal supports at least one of the following: SL-PRS has priority over all other pass-through link channels or signals; SL-PRS has a lower priority than all other pass-through link channels or signals; The priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority; Wherein, the other direct link channels or signals include: direct link physical control channel PSCCH, direct link physical shared channel PSSCH, direct link physical feedback channel PSFCH, and direct link channel status information reference signal SL CSI-RS. at least one of. The information transmission method according to claim 12, wherein the terminal uses any of the following options to indicate the priority processing option of the direct link positioning reference signal that the terminal can support: Option 1, the terminal supports priority state 1 and priority state 2; the priority state 1 is: SL-PRS has a higher priority than all other direct link channels or signals; the priority state 2 is: SL-PRS has a lower priority than all other pass-through link channels or signals; Option 2, the terminal supports priority state 1, priority state 2 and priority state 3; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signals; the priority Level state 2 is: the priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority; the priority state 3 is: SL-PRS has a lower priority than all other pass-through link channels or signals; Option 3, the terminal supports priority state 1; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signals. An information transmission method, applied to the first device, including: Send time window information to the terminal; the time window information is information for at least one of the first time window, the second time window and the third time window; Wherein, the time slots occupied by the first time window belong to the direct link resource pool, the time slots occupied by the second time window belong to the direct link dedicated resource pool, and the time slots occupied by the third time window belong to the direct link resource pool. Does not belong to the direct link resource pool and direct link dedicated resource pool; The first device includes: at least one of a terminal, a base station, a roadside unit RSU, and a positioning server. The information transmission method according to claim 14, wherein the time slot occupied by the first time window is a first time slot set, and the first time slot set is located in a direct link resource pool; the direct link The resource pool is the resource pool used by the terminal for direct link communication; And/or, the time slots occupied by the second time window are a second time slot set, and the second time slot set is located in a direct link dedicated resource pool; the direct link dedicated resource pool is used by the terminal for transmission Resource pool of direct link positioning reference signal SL-PRS; And/or, the time slots occupied by the third time window are a third time slot set, and the third time slot set is not used for the direct link resource pool or the direct link dedicated resource pool. The information transmission method according to claim 15, wherein the first time slot set is a subset of the time slot set occupied by the direct link resource pool; different terminals correspond to different first time windows; And/or, the second time slot set is a subset of the time slot set occupied by the direct link dedicated resource pool; different terminals correspond to different second time windows. The information transmission method according to claim 15, wherein the third time slot set is used for transmitting SL-PRS. The information transmission method according to claim 14, wherein the reception or processing priority rules between the direct link positioning reference signal SL-PRS and other direct link channels or signals in the first time window include any of the following: One item: The reception or processing priority of the SL-PRS is higher than the reception or processing priority of the other direct link channels or signals; The reception or processing priority of SL-PRS is lower than the reception or processing priority of other direct link channels or signals; Wherein, the other direct link channels or signals include: direct link physical control channel PSCCH, direct link physical shared channel PSSCH, direct link physical feedback channel PSFCH, and direct link channel status information reference signal SL CSI-RS. at least one of. The information transmission method according to claim 18, wherein the receiving or processing priority rule is applied in all time slots within the first time window, or is applied in the first time window. In the time slot occupied by SL-PRS within the window. The information transmission method according to claim 14, wherein within the first time window, periodic, semi-persistent or aperiodic SL-PRS transmission in a broadcast, multicast or unicast manner is supported; and/or, within the second time window, support the transmission of periodic, semi-persistent or aperiodic SL-PRS in a broadcast, multicast or unicast manner; And/or, within the third time window, supporting periodic SL-PRS transmission in a broadcast manner. The information transmission method according to claim 14, wherein the priority level of the second time window is associated with the through link positioning requirement priority level. The information transmission method according to claim 14, wherein the third time window occupies a semi-statically configured uplink time slot. The information transmission method according to claim 14 or 15, wherein the time slots occupied by the first time window, the second time window and/or the third time window are configured or preconfigured in a bitmap manner; And/or, the first time window and/or the second time window are triggered or activated through low-layer signaling; And/or, the priority type of the first time window and/or the priority level of the second time window are configured or preconfigured. The information transmission method according to claim 14, wherein the terminal supports at least one of the following: SL-PRS has priority over all other pass-through link channels or signals; SL-PRS has a lower priority than all other pass-through link channels or signals; The priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority; Wherein, the other direct link channels or signals include: direct link physical control channel PSCCH, direct link physical shared channel PSSCH, direct link physical feedback channel PSFCH, and direct link channel status information reference signal SL CSI-RS. at least one of. The information transmission method according to claim 24, wherein the terminal uses any of the following options to indicate the priority processing option of the direct link positioning reference signal that the terminal can support: Option 1, the terminal supports priority state 1 and priority state 2; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signals; the priority state 2 For: SL-PRS has a lower priority than all other pass-through link channels or signals; Option 2, the terminal supports priority state 1, priority state 2 and priority state 3; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signals; the priority Level state 2 is: the priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority; the priority state 3 is: SL-PRS has a lower priority than all other pass-through link channels or signals; Option 3, the terminal supports priority state 1; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signals. An information transmission device, the information transmission device is a terminal, including a memory, a transceiver, and a processor: Memory, used to store computer programs; transceiver, used to send and receive data under the control of the processor; processor, used to read the computer program in the memory and perform the following operations: In at least one time window among the first time window, the second time window and the third time window, receive the direct link positioning reference signal through the transceiver; Wherein, the time slots occupied by the first time window belong to the direct link resource pool, the time slots occupied by the second time window belong to the direct link dedicated resource pool, and the time slots occupied by the third time window belong to the direct link resource pool. Does not belong to the direct link resource pool and direct link dedicated resource pool. The information transmission device according to claim 26, wherein the operations further include: In at least one time window among the first time window, the second time window and the third time window, before receiving the through link positioning reference signal, the time window information sent by the first device is received through the transceiver; One device includes: at least one of a terminal, a base station, a roadside unit RSU, and a positioning server; Or, get the time window information according to the preconfiguration; Wherein, receiving the direct link positioning reference signal in at least one time window among the first time window, the second time window and the third time window includes: According to the time window information, the direct link positioning reference signal is received in at least one of the first time window, the second time window and the third time window. The information transmission device according to claim 26, wherein the time slot occupied by the first time window is a first time slot set, and the first time slot set is located in a direct link resource pool; The pass-through link resource pool is the resource pool used by terminals for pass-through link communication; And/or, the time slots occupied by the second time window are a second time slot set, and the second time slot set is located in a direct link dedicated resource pool; the direct link dedicated resource pool is used by the terminal for transmission Resource pool of direct link positioning reference signal SL-PRS; And/or, the time slots occupied by the third time window are a third time slot set, and the third time slot set is not used for the direct link resource pool or the direct link dedicated resource pool. The information transmission device according to claim 28, wherein the first time slot set is a subset of the time slot set occupied by the direct link resource pool; different terminals correspond to different first time windows; And/or, the second time slot set is a subset of the time slot set occupied by the direct link dedicated resource pool; different terminals correspond to different second time windows. The information transmission device according to claim 28, wherein the third time slot set is used for transmitting SL-PRS. The information transmission device according to claim 26, wherein the reception or processing priority rules between the direct link positioning reference signal SL-PRS and other direct link channels or signals in the first time window include any of the following: One item: The reception or processing priority of the SL-PRS is higher than the reception or processing priority of the other direct link channels or signals; The reception or processing priority of SL-PRS is lower than the reception or processing priority of other direct link channels or signals; Wherein, the other direct link channels or signals include: direct link physical control channel PSCCH, direct link physical shared channel PSSCH, direct link physical feedback channel PSFCH, and direct link channel status information reference signal SL CSI-RS. at least one of. The information transmission device according to claim 31, wherein the reception or processing priority rule is applied in all time slots within the first time window, or is applied by SL- in the time slot occupied by PRS. The information transmission device according to claim 26, wherein within the first time window, transmission of periodic, semi-persistent or aperiodic SL-PRS in a broadcast, multicast or unicast manner is supported; and/or, within the second time window, support periodic transmission in a broadcast, multicast or unicast manner Sexual, semi-continuous or aperiodic SL-PRS; And/or, within the third time window, supporting periodic SL-PRS transmission in a broadcast manner. The information transmission device according to claim 26, wherein the priority level of the second time window is associated with a through-link positioning requirement priority level. The information transmission device according to claim 26, wherein the third time window occupies a semi-statically configured uplink time slot. The information transmission device according to claim 26 or 28, wherein the time slots occupied by the first time window, the second time window and/or the third time window are configured or preconfigured in a bitmap manner; And/or, the first time window and/or the second time window are triggered or activated through low-layer signaling; And/or, the priority type of the first time window and/or the priority level of the second time window are configured or preconfigured. The information transmission device according to claim 26, wherein the terminal supports at least one of the following: SL-PRS has priority over all other pass-through link channels or signals; SL-PRS has a lower priority than all other pass-through link channels or signals; The priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority; Wherein, the other direct link channels or signals include: direct link physical control channel PSCCH, direct link physical shared channel PSSCH, direct link physical feedback channel PSFCH, and direct link channel status information reference signal SL CSI-RS. at least one of. The information transmission device according to claim 37, wherein the terminal uses any of the following options to indicate the priority processing option of the direct link positioning reference signal that the terminal can support: Option 1, the terminal supports priority state 1 and priority state 2; the priority state 1 is: SL-PRS has a higher priority than all other direct link channels or signals; the priority state 2 is: SL-PRS has a lower priority than all other pass-through link channels or signals; Option 2, the terminal supports priority state 1, priority state 2 and priority state 3; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signals; the priority Level state 2 is: the priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority; the priority state 3 is: SL-PRS has a lower priority than all other pass-through link channels or signals; Option 3, the terminal supports priority state 1; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signals. An information transmission device, the information transmission device is a first device, including a memory, a transceiver, and a processor: Memory, used to store computer programs; transceiver, used to send and receive data under the control of the processor; processor, used to read the computer program in the memory and perform the following operations: Through the transceiver, time window information is sent to the terminal; the time window information is information for at least one of the first time window, the second time window and the third time window; Wherein, the time slots occupied by the first time window belong to the direct link resource pool, the time slots occupied by the second time window belong to the direct link dedicated resource pool, and the time slots occupied by the third time window belong to the direct link resource pool. Does not belong to the direct link resource pool and direct link dedicated resource pool; The first device includes: at least one of a terminal, a base station, a roadside unit RSU, and a positioning server. The information transmission device according to claim 39, wherein the time slot occupied by the first time window is a first time slot set, and the first time slot set is located in a direct link resource pool; the direct link The resource pool is the resource pool used by the terminal for direct link communication; And/or, the time slots occupied by the second time window are a second time slot set, and the second time slot set is located in a direct link dedicated resource pool; the direct link dedicated resource pool is used by the terminal for transmission Resource pool of direct link positioning reference signal SL-PRS; And/or, the time slots occupied by the third time window are a third time slot set, and the third time slot set is not used for the direct link resource pool or the direct link dedicated resource pool. The information transmission device according to claim 40, wherein the first time slot set is a subset of the time slot set occupied by the direct link resource pool; different terminals correspond to different first time windows; And/or, the second time slot set is a subset of the time slot set occupied by the direct link dedicated resource pool; different terminals correspond to different second time windows. The information transmission device according to claim 40, wherein the third time slot set is used for transmitting SL-PRS. The information transmission device according to claim 39, wherein the reception or processing priority rules between the direct link positioning reference signal SL-PRS and other direct link channels or signals in the first time window include any of the following: One item: The reception or processing priority of the SL-PRS is higher than the reception or processing priority of the other direct link channels or signals; The reception or processing priority of SL-PRS is lower than the reception or processing priority of other direct link channels or signals; Wherein, the other direct link channels or signals include: direct link physical control channel PSCCH, direct link physical shared channel PSSCH, direct link physical feedback channel PSFCH, and direct link channel status information reference signal SL CSI-RS. at least one of. The information transmission device according to claim 43, wherein the reception or processing priority rule is applied in all time slots within the first time window, or is applied by SL- in the time slot occupied by PRS. The information transmission device according to claim 39, wherein within the first time window, transmission of periodic, semi-persistent or aperiodic SL-PRS in a broadcast, multicast or unicast manner is supported; and/or, within the second time window, support the transmission of periodic, semi-persistent or aperiodic SL-PRS in a broadcast, multicast or unicast manner; And/or, within the third time window, supporting periodic SL-PRS transmission in a broadcast manner. The information transmission device according to claim 39, wherein the priority level of the second time window is associated with a through-link positioning requirement priority level. The information transmission device according to claim 39, wherein the third time window occupies a semi-statically configured uplink time slot. The information transmission device according to claim 39 or 40, wherein the time slots occupied by the first time window, the second time window and/or the third time window are configured or preconfigured in a bitmap manner; And/or, the first time window and/or the second time window are triggered or activated through low-layer signaling; And/or, the priority type of the first time window and/or the priority level of the second time window are configured or preconfigured. The information transmission device according to claim 39, wherein the terminal supports at least one of the following: SL-PRS has priority over all other pass-through link channels or signals; SL-PRS has a lower priority than all other pass-through link channels or signals; The priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority; Wherein, the other direct link channels or signals include: direct link physical control channel PSCCH, direct link physical shared channel PSSCH, direct link physical feedback channel PSFCH, and direct link channel status information reference signal SL CSI-RS. at least one of. The information transmission device according to claim 49, wherein the terminal uses any of the following options to indicate the priority processing option of the direct link positioning reference signal that the terminal can support: Option 1, the terminal supports priority state 1 and priority state 2; the priority state 1 is: SL-PRS has a higher priority than all other direct link channels or signals; the priority state 2 is: SL-PRS has a lower priority than all other pass-through link channels or signals; Option 2, the terminal supports priority state 1, priority state 2 and priority state 3; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signals; the priority Level state 2 is: the priority of SL-PRS is lower than other direct link channels or signals of the first priority, but higher than other direct link channels or signals of the second priority; the priority state 3 is: SL-PRS has a lower priority than all other pass-through link channels or signals; Option 3, the terminal supports priority state 1; the priority state 1 is: the priority of SL-PRS is higher than that of all other direct link channels or signals. An information transmission device, applied to terminals, including: A first receiving unit configured to receive the through link positioning reference signal in at least one of the first time window, the second time window and the third time window; Wherein, the time slots occupied by the first time window belong to the direct link resource pool, the time slots occupied by the second time window belong to the direct link dedicated resource pool, and the time slots occupied by the third time window belong to the direct link resource pool. Does not belong to the direct link resource pool and direct link dedicated resource pool. An information transmission device, applied to a first device, including: A first sending unit configured to send time window information to the terminal; the time window information is information for at least one of the first time window, the second time window, and the third time window; Wherein, the time slots occupied by the first time window belong to the direct link resource pool, the time slots occupied by the second time window belong to the direct link dedicated resource pool, and the time slots occupied by the third time window belong to the direct link resource pool. Does not belong to the direct link resource pool and direct link dedicated resource pool; The first device includes: at least one of a terminal, a base station, a roadside unit RSU, and a positioning server. A processor-readable storage medium storing a computer program, the computer program being used to cause the processor to execute the information transmission method described in any one of claims 1 to 13, or Implement the information transmission method described in any one of claims 14 to 25.