CN114698086A - Information indication method, device, related equipment and storage medium - Google Patents
Information indication method, device, related equipment and storage medium Download PDFInfo
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- H04J3/0635—Clock or time synchronisation in a network
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- H04J3/0658—Clock or time synchronisation among packet nodes
- H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
Abstract
The application discloses an information indication method, an information indication device, sending end equipment, receiving end equipment and a storage medium. The method comprises the following steps: receiving end equipment receives truncated timestamp information based on a set period and sent by sending end equipment; the receiving end equipment can determine the propagation delay or the propagation distance between the receiving end equipment and the sending end equipment by utilizing the time information indicated by the truncated timestamp information based on the set period.
Description
Technical Field
The present application relates to the field of wireless communications, and in particular, to an information indication method, an information indication apparatus, a related device, and a storage medium.
Background
When two communication devices communicate with each other, it may be necessary for the receiving device to know the transmission delay and/or propagation distance between itself and the sending device. In one implementation, the receiving device may determine the transmission delay and/or the propagation distance between itself and the sending device by using the timestamp of the reference point. In this case, the transmitting-end device needs to transmit the time stamp information of the reference point to the receiving-end device.
However, in the related art, the signaling overhead for transmitting the reference point timestamp information is relatively large.
Disclosure of Invention
In order to solve the related technical problem, embodiments of the present application provide an information indication method, an information indication apparatus, related devices, and a storage medium.
The technical scheme of the embodiment of the application is realized as follows:
the embodiment of the application provides an information indication method, which is applied to receiving end equipment and comprises the following steps:
receiving truncated timestamp information based on a set period and sent by sending end equipment;
the receiving end equipment can determine the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by utilizing the time information indicated by the truncated timestamp information based on the set period.
In the above scheme, the set period is predefined or indicated by the sending end device.
In the foregoing solution, the truncated timestamp information includes: truncated timestamp information for the reference point; the truncated timestamp information of the reference point includes only timestamp information of a time granularity of milliseconds or less.
In the above solution, the reference point includes one of:
a system frame;
a synchronization signal;
a Synchronization Signal Block (SSB) comprising a synchronization signal;
the start or end time of the signal is found.
In the foregoing solution, the method further includes:
determining the sending time of the reference point by using the truncated timestamp information of the reference point; and determining the receiving time of the reference point, so that the receiving end device can determine the propagation delay and/or the propagation distance between the receiving end device and the sending end device by using the sending time of the reference point and the receiving time of the reference point.
In the above scheme, the method further comprises:
and determining the receiving time of a reference point, and performing remainder operation on the total time of the set period by using the receiving time of the reference point to obtain an operation result, so that the receiving end equipment can determine the propagation delay and/or the propagation distance from the receiving end equipment to the sending end equipment by using the operation result and the truncated timestamp information of the reference point.
In the above scheme, the truncated timestamp information based on the set period sent by the sending end device is received on a direct link (Sidelink) between the terminal and the terminal.
The embodiment of the present application further provides an information indication method, applied to a sending end device, including:
and transmitting the truncated timestamp information based on the set period to the receiving terminal equipment.
In the above scheme, the method further comprises:
and indicating the set period of the sending terminal equipment.
In the foregoing solution, the truncated timestamp information includes:
truncated timestamp information for the reference point; the truncated timestamp information of the reference point includes only timestamp information of a time granularity of milliseconds or less.
In the above solution, the reference point includes one of:
a system frame;
a synchronization signal;
an SSB containing a synchronization signal;
the start or end time of the signal is found.
In the scheme, truncated timestamp information based on a set period is sent to the receiving end equipment between terminals in the Sidelink.
An embodiment of the present application further provides an information indicating apparatus, including:
the receiving unit is used for receiving the truncated timestamp information which is sent by the sending terminal equipment and is based on the set period; the time information indicated by the truncated timestamp information based on the set period can be used for determining the propagation delay and/or the propagation distance between the receiving end device and the sending end device.
An embodiment of the present application further provides an information indicating apparatus, including:
and the sending unit is used for sending the truncated timestamp information based on the set period to the receiving terminal equipment.
The embodiment of the present application further provides a receiving end device, including: a first processor and a first communication interface; wherein the content of the first and second substances,
the first communication interface is used for receiving truncated timestamp information which is sent by sending end equipment and is based on a set period; the truncated timestamp information based on the set period can be used to determine a propagation delay and/or a propagation distance from the receiving end device to the transmitting end device.
The embodiment of the present application further provides a sending end device, including: a second processor and a second communication interface; wherein the content of the first and second substances,
and the second communication interface is used for sending the truncated timestamp information based on the set period to the receiving terminal equipment.
The embodiment of the present application further provides a receiving end device, which includes: a first processor and a first memory for storing a computer program capable of running on the processor,
wherein the first processor is configured to execute the steps of any one of the methods of the receiving end device side when running the computer program.
The embodiment of the present application further provides a sending end device, including: a second processor and a second memory for storing a computer program capable of running on the processor,
the second processor is configured to execute the steps of any method on the transmitting end device side when the computer program is run.
An embodiment of the present application further provides a storage medium, where a computer program is stored, and when executed by a processor, the computer program implements the steps of any method on the transmitting-end device side, or implements the steps of any method on the receiving-end device side.
According to the information indication method, the information indication device, the related equipment and the storage medium, the sending end equipment sends the truncated timestamp information based on the set period to the receiving end equipment; the receiving end equipment receives the truncated timestamp information based on the set period, and can determine the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by utilizing the time information indicated by the truncated timestamp information based on the set period; according to the scheme provided by the embodiment of the application, the sent timestamp information only comprises the truncated timestamp information, so that the signaling overhead can be greatly reduced, and the receiving time delay can be further reduced.
Drawings
Fig. 1 is a schematic flowchart of a first information indicating method according to an embodiment of the present application;
FIG. 2 is a flowchart illustrating a second method for indicating information according to an embodiment of the present disclosure;
FIG. 3 is a flowchart illustrating a third method for indicating information according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of an information indicating apparatus according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of another information indicating apparatus according to an embodiment of the present disclosure;
FIG. 6 is a schematic diagram of a receiving end device according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a transmitting end device in the present application;
fig. 8 is a schematic structural diagram of an information indicating system according to an embodiment of the present application.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples.
In the related art, as shown below, the timestamp information of the reference point sent by the sending end device to the receiving end device, which is represented by the conventional timestamp information, is a complete time, including, for example, which day, which second, which millimeter, which nanosecond, etc., and the signaling overhead is relatively large. This overhead is acceptable when the receiver timing is aided by the timestamp information, when the timing update frequency is not very high.
However, if this timestamp information is used as auxiliary information for propagation delay and/or propagation distance determination, the timestamp information needs to be transmitted every 20ms according to relevant regulations, and in this case, the signaling overhead is relatively large and may affect the reception delay. Since the transmission frequency is high, some unnecessary indication information can be dispensed with. For example, in a network, the transmission delay of a transmitting end and a receiving end, a cell with a radius of one kilometer, and the propagation delay (which may also be referred to as transmission delay) are 3300 nanoseconds, and even if the propagation delay from a geostationary satellite to the ground is considered, the propagation delay is less than 120 ms. In combination with the definition of the System Frame Number (SFN) in mobile communication, the timestamp indication information of the transmission time of a specific reference point can be simplified, only the time information of millisecond and less than millisecond is required to be represented in different SFNs (numbered 0-1023), even only the time information of less than millisecond is required to be represented, and the time information which can be used in the same SFN can be the same. For example, the timestamp information in the SFN with the timestamp includes only information on the order of milliseconds and nanoseconds; that is, the time stamp information contains only truncated time stamp information, so that signaling overhead can be reduced.
Based on this, in various embodiments of the present application, truncated timestamp indication information (i.e., truncated timestamp information) is transmitted.
An embodiment of the present application provides an information indication method, which is applied to a receiving end device, and as shown in fig. 1, the method includes:
step 101: receiving truncated timestamp information based on a set period and sent by sending end equipment;
step 102: and determining the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by utilizing the time information indicated by the truncated timestamp information based on the set period.
The receiving end equipment can determine the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by utilizing the time information indicated by the truncated timestamp information based on the set period; of course, the receiving end device may also assist the receiving end device in timing by using the time information indicated by the truncated timestamp information based on the set period.
The sender device may be named a first communication device; accordingly, the receiving end device may be named a second communication device.
In practical application, the sending end device may be a network device (specifically, a base station), and the receiving end device may be a terminal. In a Sidelink scenario, that is, in a Sidelink communication scenario, the sending end device is one terminal, and the receiving end device is another terminal.
In practical application, when both the receiving end device and the sending end device are terminals, the receiving end device may receive, on a Sidelink between the terminals, truncated timestamp information based on a set period, which is sent by the sending end device. That is, the receiving end device receives the truncated timestamp information based on the set period, which is sent by the sending end device, through the Sidelink.
For the receiving end device, the setting period may be preset, that is, predefined, or may be indicated by the sending end device (that is, the network device), that is, the sending end device sends the indication information of the agreed period to the receiving end device. In practical application, the setting period may be set as required, for example, 1024 system frames may be used as one period, and may also be a configuration period of a synchronization signal. When there are multiple possible periods, the sending end device may indicate one of the multiple possible periods to the receiving end device.
The truncated timestamp information based on the set period is associated with a predetermined period, and specifically includes: compared with the traditional timestamp information (including which day, which second, which millimeter, which nanosecond and the like), in a set period, the truncated timestamp information can only include the time information of millisecond and below millisecond, so that the receiving end equipment utilizes the truncated timestamp information, and based on the set period, timing can be assisted, and the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment can also be determined. Therefore, receiving truncated timestamp information based on a set period can be understood as: receiving corresponding truncated timestamp information in a set period; and receiving corresponding truncated timestamp information in the next set period.
In practical applications, considering that the propagation delay does not exceed 120ms, the transmitted timestamp information may represent time information of milliseconds or less in combination with the definition of SFN.
Based on this, in an embodiment, the truncated timestamp information includes: truncated timestamp information for the reference point; the truncated timestamp information for the reference point may include timestamp information for a time granularity of milliseconds and less. That is, the receiving end device receives truncated timestamp information based on a reference point of a set period, which is sent by a sending end device.
When the propagation delay from the geostationary satellite to the ground is not considered, the propagation delay is approximately 3300 nanoseconds in a cell with a radius of one kilometer, and in this case, the transmitted timestamp information may represent time information of milliseconds or less.
Based on this, in an embodiment, the truncated timestamp information of the reference point only includes timestamp information of time granularity of milliseconds or less, such as timestamp information containing time granularity of nanoseconds.
In this embodiment of the present application, the truncated timestamp information of the reference point refers to: compared with the traditional timestamp information (including which day, which second, which millimeter, which nanosecond and the like), the timestamp information of the reference point in the embodiment of the present application can only keep the time information of the millisecond and below the millisecond, so that the timestamp information in the embodiment of the present application is shorter than the traditional timestamp information.
In this embodiment of the present application, the receiving end device may determine the sending time of the reference point by using the truncated timestamp information of the reference point; and determining the receiving time of the reference point, so that the receiving end device can determine the propagation delay and/or the propagation distance between the receiving end device and the sending end device by using the sending time of the reference point and the receiving time of the reference point.
Specifically, the receiving end device can obtain the absolute time of the reference point sending time (i.e., the sending time of the reference point) in the corresponding set period according to the truncated timestamp information of the reference point, and at the same time, the receiving end device can determine the absolute time of the reference point receiving time (i.e., the receiving time of the reference point) in the corresponding period; and the receiving end equipment determines the propagation delay from the receiving end equipment to the sending end equipment based on the determined absolute receiving time and the determined absolute sending time of the reference point. Specifically, the receiving end device may determine a difference between the received absolute time and the transmitted absolute time of the reference point (i.e., the received absolute time and the transmitted absolute time of the reference point are compared to obtain a difference), and use the difference as the propagation delay between the receiving end device and the transmitting end device.
When determining the absolute time of the reference point sending time in the corresponding setting period, the absolute time of the reference point sending time in the corresponding setting period may be determined by using the position of the reference point in the corresponding setting period and the time granularity corresponding to the truncated timestamp information.
Exemplarily, assuming that 1024 system frames (which may also be referred to as radio frames and each system frame is 10ms in length) are taken as a period (that is, assuming that the set period is total duration of 1024 system frames), assuming that the time granularity corresponding to the truncated timestamp information is nanoseconds, in this period, the absolute time of the sending time of the reference point can be obtained by using the number of received system frames before the reference point is received (that is, the number of system frames between the beginning of the period and the reception of the truncated timestamp information of the reference point), the length of each system frame, and the time granularity corresponding to the truncated timestamp information; the absolute time of the transmission time of the reference point may be n × 10 × 1000000+ truncated timestamp information. Where n represents the number of system frames between the beginning of the predetermined period and the receipt of the truncated timestamp information for the reference point. Here, the receiving-end device may determine the number of received system frames with reference to a clock time between the start of the period and the receipt of the truncated timestamp information.
Accordingly, after the propagation delay is determined, the propagation distance between the receiving end device and the sending end device can be determined according to the propagation delay. The embodiment of the present application does not limit the specific implementation process for determining the propagation distance.
In this embodiment, the receiving end device may further determine a receiving time of a reference point (within the corresponding setting period), and perform a remainder operation on the total duration of the setting period by using the receiving time of the reference point to obtain an operation result, so that the receiving end device can determine the propagation delay and/or the propagation distance between the receiving end device and the sending end device by using the operation result and the truncated timestamp information of the reference point.
Specifically, the receiving end device may further perform a remainder operation on the absolute time (the time granularity corresponding to the truncated timestamp information) of the receiving time of the reference point indicated by the local clock in the corresponding setting period, with respect to the total time length of the setting period (the time granularity corresponding to the truncated timestamp information), to obtain an operation result; and determining a difference value between the operation result and the indicated truncated timestamp information (i.e. comparing the operation result with the indicated truncated timestamp information to obtain a difference value), and taking the difference value as the propagation delay from the receiving end equipment to the sending end equipment.
Exemplarily, it is assumed that 1024 system frames (each system frame is 10ms in length) are used as one period (that is, it is assumed that the set period is total time of 1024 system frames), it is assumed that time granularity corresponding to truncated timestamp information is nanoseconds, after receiving end equipment receives the truncated timestamp information, only the time indicated by a local clock is required to perform remainder operation on the total time length of the 1024 system frames, and the obtained remainder is compared with the timestamp information indicating the remainder indicated by sending end equipment, so as to obtain the propagation delay. Due to the difference of the propagation delay and the cycle period in magnitude, the signal propagation delay cannot exceed the total time of 1024 system frames, and therefore the probability of occurrence of ambiguity is negligible.
As can be seen from the above description, the truncated timestamp information indicated by the sending end device only needs to indicate the result of the addition of the absolute time of sending the reference point in the corresponding period to the set period, that is, may be expressed as mod (the absolute time of the sending time of the reference point, the set period length). Where mod represents the remainder.
By using the scheme of the embodiment of the application, the Physical Random Access Channel (PRACH) can be avoided from being transmitted.
As can be seen from the above description, if the receiving end device and the sending end device use the same clock system or use the same precision clock system, the determined propagation delay and/or propagation distance is more accurate.
Among them, it should be further explained that: in practical applications, the set period is not limited to 1024 system frames, and may also be a configuration period of a synchronization signal, such as a default period in NR, that is, 20 ms. When the period is a configuration period of the synchronization signal, ambiguity (which can be understood as a maximum tolerable error) generated can be eliminated in combination with identification of the terminal to the base station, for example, a satellite communication base station or a terrestrial communication base station when the base station is determined based on information (including but not limited to a base station type indication, specific channel configuration information, and the like) indicated by the base station, and the maximum transmission delay in the current scenario can be further predicted based on the type of the base station, so as to obtain the maximum tolerable error.
When the period is set to other values, the specific process of determining the propagation delay can be understood with reference to the above description.
In practical application, the reference point may be determined as needed, and may be any reference point capable of assisting the receiving end device to determine the propagation delay and/or the propagation distance between the communication devices.
Based on this, in an embodiment, the reference point comprises one of:
a system frame;
a synchronization signal;
an SSB comprising a synchronization signal;
the start or end time of the signal is found.
When the reference point comprises a system frame, namely under the condition that the reference point comprises the system frame, the receiving end equipment determines the sending time of the system frame by using the truncated timestamp information of the system frame; determining the receiving time of the system frame so that the receiving end equipment can determine the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by using the sending time of the system frame and the receiving time of the system frame; or, the receiving end device determines the receiving time of the system frame, and performs a remainder operation on the total duration of the set period by using the receiving time of the system frame to obtain an operation result, so that the receiving end device can determine the propagation delay and/or the propagation distance between the receiving end device and the sending end device by using the operation result and the truncated timestamp information of the system frame.
When the reference point comprises a synchronization signal, namely under the condition that the reference point comprises the synchronization signal, the receiving end equipment determines the sending time of the synchronization signal by using the truncated timestamp information of the reference point; determining the receiving time of the synchronous signal, so that the receiving end equipment can determine the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by using the sending time of the synchronous signal and the receiving time of the synchronous signal; or, the receiving end device determines the receiving time of the synchronization signal, and performs a remainder operation on the total duration of the set period by using the receiving time of the synchronization signal to obtain an operation result, so that the receiving end device can determine the propagation delay and/or the propagation distance between the receiving end device and the sending end device by using the operation result and the truncated timestamp information of the synchronization signal.
When the reference point comprises the SSB containing the synchronous signal, namely in the case that the reference point comprises the SSB containing the synchronous signal, the receiving end device determines the sending time of the SSB by using the truncated timestamp information of the SSB; determining the receiving time of the SSB, so that the receiving end equipment can determine the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by using the sending time of the SSB and the receiving time of the synchronous signal; or, the receiving end device determines the receiving time of the SSB, and performs a remainder operation on the receiving time of the SSB to the total duration of the set period to obtain an operation result, so that the receiving end device can determine the propagation delay and/or the propagation distance between the receiving end device and the sending end device by using the operation result and the truncated timestamp information of the SSB.
In practical application, when the receiving end device receives the SSB on the Sidelink, the received SSB may be referred to as the Sidelink SSB, which is abbreviated as S-SSB.
When the reference point comprises the starting time or the ending time of the discovery signal, namely under the condition that the reference point comprises the starting time or the ending time of the discovery signal, the receiving end device determines the sending time of the starting time or the ending time of the discovery signal by using the truncated timestamp information of the starting time or the ending time of the discovery signal, and determines the receiving time of the starting time or the ending time of the discovery signal, so that the receiving end device can determine the propagation delay and/or the propagation distance from the receiving end device to the sending end device by using the sending time of the starting time or the ending time of the discovery signal and the receiving time of the starting time or the ending time of the discovery signal; or, the receiving end device determines the receiving time of the starting time or the ending time of the discovery signal, and performs a remainder operation on the total duration of the corresponding set period by using the receiving time of the starting time or the ending time of the discovery signal to obtain an operation result, so that the receiving end device can determine the propagation delay and/or the propagation distance between the receiving end device and the sending end device by using the operation result and the truncated timestamp information of the starting time or the ending time of the discovery signal.
Correspondingly, an embodiment of the present application further provides an information indication method, which is applied to a sending end device, and as shown in fig. 2, the method includes:
step 201: and transmitting the truncated timestamp information based on the set period to the receiving terminal equipment.
And when the time stamp information is actually applied, the sending terminal equipment truncates the time stamp information to determine truncated time stamp information based on a set period.
Based on this, in an embodiment, as shown in fig. 2, the method may further include:
step 200: truncated timestamp information based on a set period is determined.
In an embodiment, the sending end device sends truncated timestamp information based on a set period to the receiving end device on a Sidelink between terminals.
In an embodiment, when the sending end device is a network device and the receiving end device is a terminal, the method may further include:
and indicating the set period information of the receiving terminal equipment.
An embodiment of the present application further provides an information indicating method, as shown in fig. 3, where the method includes:
step 301: the sending end equipment sends truncated timestamp information based on a set period to the receiving end equipment;
step 302: and after the receiving end equipment receives the truncated timestamp information based on the set period, determining the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by using the time information indicated by the truncated timestamp information based on the set period.
Here, it should be noted that: the specific processing procedures of the sending end device and the receiving end device are described in detail above, and are not described in detail here.
In the information indication method provided by the embodiment of the application, the sending end equipment sends the truncated timestamp information based on the set period to the receiving end equipment; the receiving end equipment receives the truncated timestamp information based on the set period, and can determine the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by utilizing the information indicated by the truncated timestamp information based on the set period; according to the scheme provided by the embodiment of the application, the sent timestamp information only contains the truncated timestamp information, so that the signaling overhead can be greatly reduced, and the receiving time delay can be further reduced.
In order to implement the method of the embodiment of the present application, an embodiment of the present application further provides an information indicating apparatus, which is disposed on a receiving end device, and as shown in fig. 4, the apparatus includes:
a receiving unit 401, configured to receive truncated timestamp information based on a set period, sent by a sending end device; the time information indicated by the truncated timestamp information based on the set period can be used for determining the propagation delay and/or the propagation distance between the receiving end device and the sending end device.
In an embodiment, as shown in fig. 4, the apparatus may further include:
a first determining unit 402, configured to determine a propagation delay and/or a propagation distance between the receiving end device and the sending end device based on the time information indicated by the truncated timestamp information in the set period.
Wherein, in an embodiment, the truncated timestamp information comprises: truncated timestamp information for the reference point; truncated timestamp information for the reference point includes only timestamp information for a time granularity of milliseconds or less;
accordingly, the first determining unit 402 is configured to:
determining the sending time of the reference point by using the truncated timestamp information of the reference point; determining the receiving time of the reference point, so that the receiving end equipment can determine the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by using the sending time of the reference point and the receiving time of the reference point;
alternatively, the first and second electrodes may be,
and determining the receiving time of a reference point, and performing remainder operation on the total time of the set period by using the receiving time of the reference point to obtain an operation result, so that the receiving end equipment can determine the propagation delay and/or the propagation distance from the receiving end equipment to the sending end equipment by using the operation result and the truncated timestamp information of the reference point.
In an embodiment, the first determining unit 402 is configured to:
determining a transmission time of a system frame by using truncated timestamp information of the system frame under the condition that a reference point comprises the system frame; determining the receiving time of the system frame; determining the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by using the sending time of the system frame and the receiving time of the system frame;
alternatively, the first and second electrodes may be,
and determining the receiving time of the system frame, and performing remainder operation on the total duration of the set period by using the receiving time of the system frame to obtain an operation result, so that the receiving end equipment can determine the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by using the operation result and the truncated timestamp information of the system frame.
In an embodiment, the first determining unit 402 is configured to:
determining a transmission timing of a synchronization signal using truncated timestamp information of the synchronization signal when the reference point includes the synchronization signal, i.e., in case the reference point includes the synchronization signal; and determining the receiving time of the synchronous signal; determining the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by using the sending time of the synchronous signal and the receiving time of the synchronous signal;
alternatively, the first and second electrodes may be,
and determining the receiving time of the synchronous signal, and carrying out complementation operation on the total time of the set period by the receiving time of the synchronous signal to obtain an operation result, so that the receiving end equipment can determine the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by using the operation result and the truncated timestamp information of the synchronous signal.
In an embodiment, the first determining unit 402 is configured to:
when the reference point comprises an SSB containing a synchronization signal, namely in the case that the reference point comprises the SSB containing the synchronization signal, determining the sending time of the SSB by using the truncated time stamp information of the SSB; determining the receiving time of the SSB; determining the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by using the sending time of the SSB and the receiving time of the SSB;
alternatively, the first and second electrodes may be,
and determining the receiving time of the SSB, and carrying out complementation operation on the total time of the set period by the receiving time of the SSB to obtain an operation result, so that the receiving end equipment can determine the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by using the operation result and the truncated timestamp information of the SSB.
In an embodiment, the first determining unit 402 is configured to:
when the reference point includes a start time or an end time of the discovery signal, that is, in case that the reference point includes the start time or the end time of the discovery signal, determining a transmission time of the start time or the end time of the discovery signal using truncated timestamp information of the start time or the end time of the discovery signal, and determining a reception time of the start time or the end time of the discovery signal; determining the propagation delay and/or propagation distance between the receiving end equipment and the sending end equipment by using the sending time of the starting time or the ending time of the discovery signal and the receiving time of the starting time or the ending time of the discovery signal;
alternatively, the first and second electrodes may be,
determining the receiving time of the starting time or the ending time of the discovery signal, and carrying out remainder operation on the total time length of the corresponding set period by using the receiving time of the starting time or the ending time of the discovery signal to obtain an operation result, so that the receiving end equipment can determine the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by using the operation result and the truncated timestamp information of the starting time or the ending time of the discovery signal.
In an embodiment, the receiving unit 401 is configured to receive, on a Sidelink between the terminal and the terminal, truncated timestamp information based on a set period and sent by the sending end device.
In an embodiment, the receiving unit 401 is further configured to receive setting period information indicated by the sending end device.
In actual application, the receiving unit 401 may be implemented by a communication interface in an information indicating apparatus; the first determination unit 402 may be implemented by a processor in the information indication apparatus.
In order to implement the method of the sending end device side in the embodiment of the present application, an embodiment of the present application further provides an information indication, which is set on the sending end device, and as shown in fig. 5, the apparatus includes:
a sending unit 501, configured to send truncated timestamp information based on a set period to a receiving end device.
In an embodiment, as shown in fig. 5, the apparatus may further include:
a second determining unit 502 for determining truncated timestamp information based on the set period.
In an embodiment, the sending unit 501 is configured to send truncated timestamp information based on a set period to a receiving end device on a Sidelink between terminals.
In an embodiment, the sending unit 501 is further configured to instruct the receiving end device to set the period information.
In actual application, the sending unit 501 may be implemented by a communication interface in an information indicating device; the second determining unit 502 may be implemented by a processor in the information indicating apparatus.
It should be noted that: in the information indicating apparatus provided in the above embodiment, when the connection is established, only the division of each program module is illustrated, and in practical applications, the above processing may be distributed to different program modules as needed, that is, the internal structure of the apparatus may be divided into different program modules to complete all or part of the above-described processing. In addition, the information indicating apparatus and the information indicating method provided by the above embodiments belong to the same concept, and specific implementation processes thereof are detailed in the method embodiments and are not described herein again.
Based on the hardware implementation of the program module, and in order to implement the method of the receiving end device side in the embodiment of the present application, an embodiment of the present application further provides a receiving end device, as shown in fig. 6, the receiving end device 600 includes:
a first communication interface 601, which is capable of performing information interaction with a sending end device;
the first processor 602 is connected to the first communication interface 601 to implement information interaction with the sending end device, and is configured to execute a method provided by one or more technical solutions of the receiving end device side when running a computer program. And the computer program is stored on the first memory 603.
Specifically, the first communication interface 601 is configured to receive truncated timestamp information based on a set period, which is sent by a sending end device; the time information indicated by the truncated timestamp information based on the set period can be used for determining the propagation delay and/or the propagation distance between the receiving end device and the sending end device.
In an embodiment, the first processor 602 is configured to determine a propagation delay and/or a propagation distance between the receiving end device and the sending end device by using time information indicated by truncated timestamp information based on a set period.
Wherein, in an embodiment, the truncated timestamp information comprises: truncated timestamp information for the reference point; truncated timestamp information for the reference point includes only timestamp information for a time granularity of milliseconds or less;
accordingly, the first determining unit 402 is configured to:
determining the sending time of the reference point by utilizing the truncated timestamp information of the reference point; determining the receiving time of the reference point, so that the receiving end equipment can determine the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by using the sending time of the reference point and the receiving time of the reference point;
alternatively, the first and second liquid crystal display panels may be,
and determining the receiving time of a reference point, and performing remainder operation on the total time of the set period by using the receiving time of the reference point to obtain an operation result, so that the receiving end equipment can determine the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by using the operation result and the truncated timestamp information of the reference point.
In an embodiment, the first processor 602 is configured to:
under the condition that the reference point comprises a system frame, determining the sending time of the system frame by using the truncated timestamp information of the system frame; determining the receiving time of the system frame; determining the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by using the sending time of the system frame and the receiving time of the system frame;
alternatively, the first and second electrodes may be,
and determining the receiving time of the system frame, and performing remainder operation on the total duration of the set period by using the receiving time of the system frame to obtain an operation result, so that the receiving end equipment can determine the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by using the operation result and the truncated timestamp information of the system frame.
In an embodiment, the first processor 602 is configured to:
determining a transmission timing of a synchronization signal using truncated timestamp information of the synchronization signal when the reference point includes the synchronization signal, i.e., in case the reference point includes the synchronization signal; and determining the receiving time of the synchronous signal; determining the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by using the sending time of the synchronous signal and the receiving time of the synchronous signal;
alternatively, the first and second liquid crystal display panels may be,
and determining the receiving time of the synchronous signal, and carrying out complementation operation on the total time of the set period by the receiving time of the synchronous signal to obtain an operation result, so that the receiving end equipment can determine the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by using the operation result and the truncated timestamp information of the synchronous signal.
In an embodiment, the first processor 602 is configured to:
when the reference point comprises an SSB containing a synchronization signal, namely in the case that the reference point comprises the SSB containing the synchronization signal, determining the sending time of the SSB by using the truncated time stamp information of the SSB; determining the receiving time of the SSB; determining the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by using the sending time of the SSB and the receiving time of the SSB;
alternatively, the first and second liquid crystal display panels may be,
and determining the receiving time of the SSB, and carrying out complementation operation on the total time of the set period by the receiving time of the SSB to obtain an operation result, so that the receiving end equipment can determine the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by using the operation result and the truncated timestamp information of the SSB.
In an embodiment, the first processor 602 is configured to:
when the reference point includes a start time or an end time of the discovery signal, that is, in case that the reference point includes the start time or the end time of the discovery signal, determining a transmission time of the start time or the end time of the discovery signal using truncated timestamp information of the start time or the end time of the discovery signal, and determining a reception time of the start time or the end time of the discovery signal; determining the propagation delay and/or propagation distance between the receiving end equipment and the sending end equipment by using the sending time of the starting time or the ending time of the discovery signal and the receiving time of the starting time or the ending time of the discovery signal;
alternatively, the first and second electrodes may be,
determining the receiving time of the starting time or the ending time of the discovery signal, and carrying out remainder operation on the total time length of the corresponding set period by using the receiving time of the starting time or the ending time of the discovery signal to obtain an operation result, so that the receiving end equipment can determine the propagation delay and/or the propagation distance between the receiving end equipment and the sending end equipment by using the operation result and the truncated timestamp information of the starting time or the ending time of the discovery signal.
In an embodiment, the first communication interface 601 is configured to receive, at a Sidelink between a terminal and a terminal, truncated timestamp information based on a set period and sent by a sending end device.
In an embodiment, the first communication interface library 601 is further configured to receive set period information indicated by the sending end device.
It should be noted that: the specific processing procedures of the first processor 602 and the first communication interface 601 can be understood by referring to the above-mentioned methods.
Of course, in practice, the various components in the sink device 600 are coupled together by the bus system 604. It is understood that the bus system 604 is used to enable communications among the components. The bus system 604 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 604 in fig. 6.
The first memory 603 in the embodiment of the present application is used to store various types of data to support the operation of the receiving end device 600. Examples of such data include: any computer program for operating on the receiving end device 600.
The method disclosed in the embodiment of the present application may be applied to the first processor 602, or implemented by the first processor 602. The first processor 602 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the first processor 602. The first Processor 602 may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc. The first processor 602 may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present application. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the first memory 603, and the first processor 602 reads the information in the first memory 603 and, in conjunction with its hardware, performs the steps of the foregoing method.
In an exemplary embodiment, the sink Device 600 may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, Micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the foregoing methods.
Based on the hardware implementation of the program module, and in order to implement the method of the sending end device side in the embodiment of the present application, an embodiment of the present application further provides a sending end device, and as shown in fig. 7, the sending end device 700 includes:
the second communication interface 701 can perform information interaction with the receiving end device;
the second processor 702 is connected to the second communication interface 701, so as to implement information interaction with the receiving end device, and is configured to execute the method provided by one or more technical solutions of the sending end device side when running a computer program. And the computer program is stored on the second memory 703.
Specifically, the second communication interface 701 is configured to send truncated timestamp information based on a set period to a receiving device.
In one embodiment, a second processor 702 is configured to determine truncated timestamp information based on a set period.
In an embodiment, the second communication interface 701 is configured to send truncated timestamp information based on a set period to a receiving end device on a Sidelink between terminals.
In an embodiment, the second communication interface 702 is further configured to indicate the setting period information to the receiving end device.
It should be noted that: the specific processing procedure of the second processor 702 can be understood by referring to the method described above.
Of course, in practice, the various components in the initiator device 700 are coupled together by a bus system 704. It is understood that the bus system 704 is used to enable communications among the components. The bus system 704 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled in fig. 7 as the bus system 704.
The second memory 703 in the embodiment of the present application is used for storing various types of data to support the operation of the sending-end device 700. Examples of such data include: any computer program for operation on the sending end device 700.
The method disclosed in the embodiments of the present application can be applied to the second processor 702, or implemented by the second processor 702. The second processor 702 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by an integrated logic circuit of hardware or an instruction in the form of software in the second processor 702. The second processor 702 described above may be a general purpose processor, a DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The second processor 702 may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the second memory 703, and the second processor 702 reads the information in the second memory 703, and completes the steps of the foregoing method in combination with its hardware.
In an exemplary embodiment, the sender device 700 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, microprocessors, or other electronic components for performing the aforementioned methods.
It is understood that the memories (the first memory 603 and the second memory 703) of the embodiments of the present application may be volatile memories or nonvolatile memories, and may include both volatile and nonvolatile memories. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The memories described in the embodiments of the present application are intended to comprise, without being limited to, these and any other suitable types of memory.
In order to implement the method provided by the embodiment of the present application, an embodiment of the present application further provides an information indicating system, as shown in fig. 8, where the system includes: a transmitting side device 801 and a receiving side device 802.
Here, it should be noted that: the specific processing procedures of the sending end device 801 and the receiving end device 802 have been described in detail above, and are not described herein again.
In an exemplary embodiment, the present application further provides a storage medium, specifically a computer storage medium, which is a computer readable storage medium, for example, the storage medium includes a first memory 603 storing a computer program, and the computer program is executable by the first processor 602 of the receiving end device 600 to complete the steps of the receiving end device side method. For another example, the apparatus includes a second memory 703 storing a computer program, which can be executed by the second processor 702 of the transmitting-end apparatus 700 to perform the steps of the side-by-side method of the transmitting-end apparatus. The computer readable storage medium may be Memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disk, or CD-ROM.
It should be noted that: "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application.
Claims (19)
1. An information indication method is applied to a receiving end device, and includes:
receiving truncated timestamp information based on a set period and sent by sending end equipment;
the receiving end device can determine the propagation delay and/or the propagation distance between the receiving end device and the sending end device by using the time information indicated by the truncated timestamp information based on the set period.
2. The method of claim 1, wherein the set period is predefined or indicated by the sender device.
3. The method of claim 1, wherein the truncated timestamp information comprises: truncated timestamp information for the reference point; the truncated timestamp information of the reference point includes only timestamp information of a time granularity of milliseconds or less.
4. The method of claim 3, wherein the reference point comprises one of:
a system frame;
a synchronization signal;
a synchronization signal block SSB including a synchronization signal;
the start or end time of the signal is found.
5. The method of claim 4, further comprising:
determining the sending time of the reference point by using the truncated timestamp information of the reference point; and determining the receiving time of the reference point, so that the receiving end device can determine the propagation delay and/or the propagation distance between the receiving end device and the sending end device by using the sending time of the reference point and the receiving time of the reference point.
6. The method of claim 4, further comprising:
and determining the receiving time of a reference point, and performing remainder operation on the total time of the set period by using the receiving time of the reference point to obtain an operation result, so that the receiving end equipment can determine the propagation delay and/or the propagation distance from the receiving end equipment to the sending end equipment by using the operation result and the truncated timestamp information of the reference point.
7. The method according to any one of claims 1 to 6,
and receiving the truncated timestamp information based on the set period, which is sent by the sending terminal equipment, on a direct link Sidelink between the terminal and the terminal.
8. An information indication method is applied to a sending terminal device, and includes:
and transmitting the truncated timestamp information based on the set period to the receiving terminal equipment.
9. The method of claim 8, further comprising:
and indicating the set period of the sending terminal equipment.
10. The method of claim 8, wherein the truncated timestamp information comprises:
truncated timestamp information for the reference point; the truncated timestamp information of the reference point includes only timestamp information of a time granularity of milliseconds or less.
11. The method of claim 10, wherein the reference point comprises one of:
a system frame;
a synchronization signal;
an SSB containing a synchronization signal;
the start or end time of the signal is found.
12. The method according to any one of claims 8 to 11,
and transmitting the truncated timestamp information based on the set period to the receiving terminal equipment on the Sidelink between the terminals.
13. An information indicating device, comprising:
the receiving unit is used for receiving truncated timestamp information which is sent by the sending terminal equipment and is based on a set period; the time information indicated by the truncated timestamp information based on the set period can be used for determining the propagation delay and/or the propagation distance between the receiving end device and the sending end device.
14. An information indicating device, comprising:
and the sending unit is used for sending the truncated timestamp information based on the set period to the receiving terminal equipment.
15. A receiving-end device, comprising: a first processor and a first communication interface; wherein the content of the first and second substances,
the first communication interface is used for receiving truncated timestamp information which is sent by sending end equipment and is based on a set period; the truncated timestamp information based on the set period can be used to determine a propagation delay and/or a propagation distance from the receiving end device to the transmitting end device.
16. A transmitting-end device, comprising: a second processor and a second communication interface; wherein the content of the first and second substances,
and the second communication interface is used for sending the truncated timestamp information based on the set period to the receiving terminal equipment.
17. A receiving-end device, comprising: a first processor and a first memory for storing a computer program capable of running on the processor,
wherein the first processor is adapted to perform the steps of the method of any one of claims 1 to 7 when running the computer program.
18. A transmitting-end device, comprising: a second processor and a second memory for storing a computer program capable of running on the processor,
wherein the second processor is adapted to perform the steps of the method of any of claims 8 to 12 when running the computer program.
19. A storage medium having stored thereon a computer program for performing the steps of the method of any one of claims 1 to 7, or for performing the steps of the method of any one of claims 8 to 12, when the computer program is executed by a processor.
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