CN118201062B

CN118201062B - BAT offset acquisition method and device, electronic equipment and storage medium

Info

Publication number: CN118201062B
Application number: CN202410584833.0A
Authority: CN
Inventors: 李洋; 魏垚; 杨智斌; 廖洁玉
Original assignee: China Telecom Technology Innovation Center; China Telecom Corp Ltd
Current assignee: China Telecom Technology Innovation Center; China Telecom Corp Ltd
Priority date: 2024-05-11
Filing date: 2024-05-11
Publication date: 2024-08-06
Anticipated expiration: 2044-05-11
Also published as: CN118201062A

Abstract

The disclosure provides a BAT offset acquisition method, a BAT offset acquisition device, electronic equipment and a storage medium, and relates to the technical field of communication. The method comprises the following steps: transmitting a tracking reference signal TRS to the terminal through at least one resource element RE; receiving BAT offset information fed back by a terminal aiming at TRS, wherein the BAT offset information is used for indicating the receiving time of the terminal receiving RE in at least one RE; generating a first BAT offset according to the BAT offset information and the sending time of RE in at least one RE; the first BAT offset is sent to a time sensitive communication time synchronization function TSCTSF network element. In this way, the wireless side is realized to provide the BAT offset, so that a system and equipment needing to use the BAT offset to perform business arrangement and other works can acquire the BAT offset from the TSCTSF network element.

Description

BAT offset acquisition method and device, electronic equipment and storage medium

Technical Field

The disclosure relates to the technical field of communication, and in particular relates to a BAT offset acquisition method, a device, electronic equipment and a storage medium.

Background

Along with the development of communication technology, TSCTSF G system architecture is added (TIME SENSITIVE Communication and Time Synchronization Function, time-sensitive communication time synchronization function), and the 5G system can obtain synchronization state information and parameter feedback related to time-sensitive communication and time synchronization through TSCTSF. Based on the synchronization status information and parameters, the 5GS (5 g system) and the industrial network are enabled to orchestrate periodic traffic.

However, the orchestration of periodic traffic requires the RAN (Radio Access Network ) to provide BAT (Burst ARRIVAL TIME, burst arrival time) offset feedback. How to provide BAT shifting is a challenge.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The disclosure provides a BAT offset acquisition method, a BAT offset acquisition device, electronic equipment and a storage medium, and at least provides a scheme capable of providing BAT offset.

Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.

According to one aspect of the present disclosure, there is provided a BAT offset acquisition method including: transmitting a tracking reference signal TRS to the terminal through at least one resource element RE; receiving BAT offset information fed back by the terminal aiming at the TRS, wherein the BAT offset information is used for indicating the receiving time of the terminal receiving the RE in the at least one RE; generating a first BAT offset according to the BAT offset information and the sending time of RE in the at least one RE; the first BAT offset is sent to a time sensitive communication time synchronization function TSCTSF network element.

In one embodiment of the present disclosure, the generating a first BAT offset according to the BAT offset information and a transmission time of an RE in the at least one RE includes: calculating the time difference between the sending and receiving of the RE in the at least one RE according to the BAT offset information and the sending time of the RE in the at least one RE; and calculating the average value of the time difference to obtain the first BAT offset.

In one embodiment of the present disclosure, the at least one RE is a plurality of REs distributed over at least one OFDM symbol, and at least two REs of the plurality of REs are distributed over an OFDM symbol of the at least one OFDM symbol.

In one embodiment of the present disclosure, the at least one OFDM symbol is a plurality of OFDM symbols, and the plurality of OFDM symbols are distributed in at least one slot.

In one embodiment of the present disclosure, the method further comprises: receiving a BAT offset measurement indication; the sending, by at least one resource element RE, a tracking reference signal TRS to a terminal includes: and for the BAT offset measurement indication, transmitting the TRS to a terminal through the at least one RE.

In one embodiment of the present disclosure, the method further comprises: re-measuring the BAT offset to obtain a second BAT offset; and when the second BAT offset is different from the first BAT offset in size, sending the second BAT offset to the TSCTSF network element.

In one embodiment of the present disclosure, further comprising: re-measuring the BAT offset to obtain a third BAT offset; and when the difference of the magnitude of the third BAT offset and the first BAT offset is larger than a threshold value, sending the third BAT offset to the TSCTSF network element.

According to another aspect of the present disclosure, there is provided a BAT offset acquisition apparatus including: a first transmitting module, configured to transmit a tracking reference signal TRS to a terminal through at least one resource element RE; a receiving module, configured to receive BAT offset information fed back by the terminal for the TRS, where the BAT offset information is used to indicate a receiving time when the terminal receives an RE of the at least one RE; a generating module, configured to generate a first BAT offset according to the BAT offset information and a sending time of an RE in the at least one RE; and the second sending module is used for sending the first BAT offset to a network element of the time sensitive communication time synchronization function TSCTSF.

In one embodiment of the disclosure, the generating module is configured to calculate a time difference between transmission and reception of the RE in the at least one RE according to the BAT offset information and a transmission time of the RE in the at least one RE; and calculating the average value of the time difference to obtain the first BAT offset.

In one embodiment of the disclosure, the receiving module is further configured to receive a BAT offset measurement indication; the first sending module is configured to send, for the BAT offset measurement indication, the TRS to a terminal through the at least one RE.

In one embodiment of the present disclosure, the apparatus further comprises: the first measuring module is used for re-measuring the BAT offset to obtain a second BAT offset; the second sending module is further configured to send the second BAT offset to the TSCTSF network element when the second BAT offset is different from the first BAT offset in size.

In one embodiment of the present disclosure, the apparatus further comprises: a second measurement module, configured to re-measure the BAT offset to obtain a third BAT offset; the second sending module is further configured to send the third BAT offset to the TSCTSF network element when a difference in size between the third BAT offset and the first BAT offset is greater than a threshold.

According to still another aspect of the present disclosure, there is provided an electronic apparatus including: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform any of the above described BAT offset acquisition methods via execution of the executable instructions.

According to yet another aspect of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the BAT offset acquisition method of any one of the above.

According to yet another aspect of the present disclosure, there is provided a computer program product comprising a computer program or computer instructions loaded and executed by a processor to cause a computer to implement a BAT offset acquisition method as described in any one of the above.

The technical scheme provided by the embodiment of the disclosure at least comprises the following beneficial effects:

According to the technical scheme provided by the embodiment of the disclosure, the method of sending TRS to the terminal through at least one RE and receiving the BAT offset information fed back by the terminal for the TRS is used for realizing the measurement of the BAT offset information, generating the first BAT offset according to the BAT offset information and the sending time of the RE in at least one RE, and sending the first BAT offset to TSCTSF network elements, so that the system and equipment for performing business arrangement and other works by using the BAT offset are realized by providing the BAT offset on a wireless side, and the BAT offset can be obtained from TSCTSF network elements.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1 shows a schematic diagram of a BAT offset acquisition system in one embodiment of the present disclosure.

Fig. 2 shows a flowchart of a BAT offset acquisition method in one embodiment of the present disclosure.

Fig. 3 shows a flowchart of a BAT offset acquisition method in another embodiment of the present disclosure.

Fig. 4 shows a flowchart of a BAT offset acquisition method in yet another embodiment of the present disclosure.

Fig. 5 illustrates a flow chart of BAT offset measurement indication transmission to a base station in one embodiment of the present disclosure.

Fig. 6 shows a schematic diagram of a time slot in which a base station transmits a TRS to a terminal in one embodiment of the present disclosure.

Fig. 7 shows a flow chart of a base station transmitting a BAT offset to TSCTSF network elements in one embodiment of the present disclosure.

Fig. 8 shows a schematic diagram of a BAT offset acquisition apparatus in one embodiment of the present disclosure.

Fig. 9 shows a block diagram of an electronic device in one embodiment of the present disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or in different networks and/or processor devices and/or microcontroller devices.

It should be understood that the various steps recited in the method embodiments of the present disclosure may be performed in a different order and/or performed in parallel. Furthermore, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the present disclosure is not limited in this respect.

It should be noted that the terms "first," "second," and the like in this disclosure are merely used to distinguish between different devices, modules, or units and are not used to define an order or interdependence of functions performed by the devices, modules, or units.

It should be noted that references to "one", "a plurality", "at least one" in this disclosure are intended to be illustrative rather than limiting, and those skilled in the art will appreciate that "one or more" is intended to be construed unless the context clearly indicates otherwise.

Fig. 1 shows a schematic diagram of a BAT offset acquisition system in an embodiment of the present disclosure, which may apply BAT offset methods or BAT offset apparatuses in various embodiments of the present disclosure.

As shown in fig. 1, the BAT offset acquisition system may include: terminal 11, base station 12, TSCTSF network element 13.

Wherein the base station 12 may transmit a TRS (TRACKING REFERENCE SIGNAL ) to the terminal 11, and the base station 12 may record a time stamp at the time of transmission of each RE, which is used to represent the transmission time of the RE, when the TRS is transmitted through at least one RE (Resource Element).

After receiving the TRS sent by the base station 12, the terminal 11 may feed back BAT offset information to the base station 12, where the BAT offset information is used to indicate a reception time of the RE in the at least one RE received by the terminal 11.

In one embodiment, the terminal 11 may record a time stamp at the time of receipt of each of the at least one RE, which may represent the time at which the RE was received. The BAT offset information may include a time stamp recorded by the terminal 11 when an RE of the at least one RE is received by the terminal 11.

The base station 12 may generate a BAT offset according to the BAT offset information and the transmission time of the RE in the at least one RE, and then the base station 12 may upload the BAT offset to the TSCTSF network element 13, so that the TSCTSF network element 13 provides the BAT offset to other devices or systems.

The terminal 11 and the base stations 12 and TSCTSF are connected to each other by a network, which may be a wired network or a wireless network.

Alternatively, the wireless network or wired network described above uses standard communication techniques and/or protocols. The network is typically the Internet, but may be any network including, but not limited to, a local area network (Local Area Network, LAN), metropolitan area network (Metropolitan Area Network, MAN), wide area network (Wide Area Network, WAN), mobile, wired or wireless network, private network, or any combination of virtual private networks. In some embodiments, data exchanged over the network is represented using techniques and/or formats including HyperText Mark-up Language (HTML), extensible markup Language (Extensible MarkupLanguage, XML), and the like. All or some of the links may also be encrypted using conventional encryption techniques such as secure sockets layer (Secure Socket Layer, SSL), transport layer security (Transport Layer Security, TLS), virtual private network (Virtual Private Network, VPN), internet protocol security (Internet ProtocolSecurity, IPsec), etc. In other embodiments, custom and/or dedicated data communication techniques may also be used in place of or in addition to the data communication techniques described above.

The terminal 11 may be a variety of electronic devices including, but not limited to, smart phones, tablet computers, laptop portable computers, desktop computers, wearable devices, augmented reality devices, virtual reality devices, industrial terminals, and the like.

The terminal 11 may also be a server providing various services, alternatively, the server may be an independent physical server, or may be a server cluster or a distributed system formed by a plurality of physical servers, or may be a cloud server providing cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDNs (Content Delivery Network, content delivery networks), and basic cloud computing services such as big data and artificial intelligence platforms.

Those skilled in the art will appreciate that the number of terminals 11 in fig. 1 is merely illustrative and that any number of terminals may be provided as desired. The embodiments of the present disclosure are not limited in this regard.

The present exemplary embodiment will be described in detail below with reference to the accompanying drawings and examples.

The embodiment of the disclosure provides a BAT offset acquisition method which can be executed by any electronic device with calculation processing capability. For example, the electronic device is a base station.

Fig. 2 shows a flowchart of a BAT offset acquisition method in one embodiment of the present disclosure, and as shown in fig. 2, the BAT offset acquisition method provided in the embodiment of the present disclosure includes the following S201 to S204.

S201, a TRS is transmitted to a terminal through at least one RE.

The number of the at least one RE is specifically, but the embodiment of the present disclosure is not limited, and may be determined according to the number of the REs used when the TRS is transmitted to the terminal, if the TRS is transmitted using 6 REs, the at least one RE is 6 REs, and if the TRS is transmitted using 1 RE, the at least one RE is 1 RE.

Regarding the number of REs used when transmitting a TRS to a terminal, embodiments of the present disclosure are not limited, and may be determined according to a configuration of a base station, and if 1 RE is used when the base station configures to transmit a TRS, the number of REs used when transmitting a TRS to the terminal is 1. If the base station is configured to transmit a TRS using 12 REs, the number of REs used in transmitting the TRS to the terminal is 12.

In one embodiment, the at least one RE is a plurality of REs that may be distributed over at least one OFDM (Orthogonal Frequency-Division Multiplexing, orthogonal frequency division multiplexing) symbol.

Regarding how many OFDM symbols the at least one OFDM symbol is, embodiments of the present disclosure are not limited, and may be determined according to a configuration of the TRS by the base station, and if the configuration transmits the TRS through 4 REs and the 4 REs are distributed in 2 OFDM symbols, the at least one OFDM symbol is 2 OFDM symbols. If the TRS is configured to be transmitted over 12 REs and the 12 REs are distributed over 4 OFDM symbols, the at least one OFDM symbol is 4 OFDM symbols. If the TRS is configured to be transmitted over 4 REs and the 4 REs are distributed over 1 OFDM symbol, the at least one OFDM symbol is 1 OFDM symbol.

Each RE corresponds to a subcarrier, and different REs on the same OFDM symbol correspond to different subcarriers.

When the plurality of REs are distributed on at least one OFDM symbol, how many REs of the plurality of REs are distributed on each OFDM symbol in the at least one OFDM symbol, respectively, embodiments of the present disclosure are not limited. In one embodiment, the number of REs in the plurality of REs are respectively distributed on each OFDM symbol, which may be determined according to a configuration of the base station.

For example, the plurality of REs is 12 REs, at least one OFDM symbol is 4 OFDM symbols, and each OFDM symbol in the 4 OFDM symbols may be uniformly distributed with 3 REs in the 12 REs; or two OFDM symbols of the 4 OFDM symbols are distributed with 1 RE of the 12 REs, and the other two OFDM symbols are distributed with 5 REs of the 12 REs.

It should be noted that, each OFDM symbol of the at least one OFDM symbol is at least distributed with 1 RE of the plurality of REs, and accordingly, the number of the at least one OFDM symbol is less than or equal to the number of the plurality of REs.

In one embodiment, OFDM symbols of the at least one OFDM symbol are distributed with at least two REs of the plurality of REs.

If at least one OFDM symbol is 1 OFDM symbol, then a plurality of REs are distributed over the OFDM symbol. If the at least one OFDM symbol is 2 OFDM symbols, at least two REs of the plurality of REs are distributed in the OFDM symbol of the at least one OFDM symbol, it may be that at least two REs of the plurality of REs are distributed in 1 OFDM symbol of the 2 OFDM symbols and other REs except for the at least two REs are distributed in another OFDM symbol. Or, the 2 OFDM symbols may all be distributed with at least two REs of the plurality of REs, and the number of REs distributed on the 2 OFDM symbols may be the same or different, which is not limited by the embodiments of the present disclosure.

In one embodiment, the at least one OFDM symbol is a plurality of OFDM symbols, where at least two REs of the plurality of REs are distributed in the OFDM symbol, and a portion of the OFDM symbols in the plurality of OFDM symbols may be all distributed with at least two REs of the plurality of REs, or each OFDM symbol in the plurality of OFDM symbols may be distributed with at least two REs of the plurality of REs, and the number of REs distributed on different OFDM symbols in the plurality of OFDM symbols may be the same or different.

In one embodiment, the plurality of REs are uniformly distributed over at least one OFDM symbol. For example, the plurality of REs is 12 REs, and at least one OFDM symbol is 4 OFDM symbols, and then 3 REs of the 12 REs are distributed on each OFDM symbol.

By configuring at least two REs of the plurality of REs distributed on an OFDM symbol of the at least one OFDM symbol, it is possible to test the BAT offset by TRS while also considering offsets of different subcarriers in the measured BAT offset, thereby making the measured BAT offset more accurate.

In one embodiment, the at least one OFDM symbol is a plurality of OFDM symbols distributed in at least one slot (slot).

Embodiments of the present disclosure are not limited in terms of how many slots the at least one slot is, and may be determined according to a configuration when the base station transmits the TRS to the terminal. For example, the base station configures the plurality of OFDM symbols to be 4, and configures the 4 OFDM symbols to be distributed in two slots, and at least one slot is 2 slots; if the 4 OFDM symbols are configured to be distributed in 1 time slot, at least one time slot is 1 time slot; the 4 OFDM symbols are configured to be distributed among 4 slots, and at least one slot is 4 slots.

In one embodiment, the at least one OFDM symbol is a plurality of OFDM symbols, the at least one slot is a plurality of slots, and the number of OFDM symbols in the plurality of OFDM symbols included in different slots may be the same or different, which may be determined according to a configuration in which the base station transmits the TRS to the terminal.

By configuring a plurality of OFDM symbols corresponding to the TRS in a plurality of time slots, the BAT offset measured by the TRS can be more objective and accurate, so that the BAT offset has more reference value.

In one embodiment, before transmitting the TRS to the terminal through the at least one RE, it may further include: receiving a BAT offset measurement indication; transmitting the TRS to the terminal through the at least one RE may include: for the BAT offset measurement indication, a TRS is transmitted to the terminal through at least one RE.

It should be noted that, the BAT measurement request may be sent by a UPF (User Plane Function ) network element.

The PCF (Policy Control Function ) network element may turn on the BAT offset adaptive support function and inform the SMF (Session Management Function ) network element that the SMF network element is directed to the BAT offset adaptive support function, and send a BAT offset measurement indication to the base station through the PCF network element. In one embodiment, the BAT offset measurement indication may be carried by TSCAI (TIME SENSITIVE Communication Assistance Information ), while TSCAI is carried by DCI signaling, that is, receiving the BAT offset measurement indication may include: and receiving DCI signaling sent by the UPF network element, wherein TSCAI carried by the DCI signaling comprises a BAT offset measurement instruction.

In one embodiment, the BAT offset measurement indication is used to instruct the base station to make one or more BAT offset measurements and report.

In another embodiment, the BAT offset measurement indication is used to instruct the base station to periodically perform BAT offset measurement and reporting, and the embodiment of the present disclosure is not limited with respect to the specific period of time for periodically measuring BAT offset and reporting, and may be determined according to the indicated period of time in the BAT offset measurement indication.

In yet another embodiment, the BAT offset measurement indication is used to instruct the base station to periodically perform BAT offset measurement, and report when the BAT offset obtained by measurement is different from the BAT offset reported previously.

In yet another embodiment, the BAT offset measurement indication is configured to instruct the base station to periodically perform BAT offset measurement, and report when a difference in size between the BAT offset obtained by the measurement and the BAT offset reported last time is greater than a threshold.

S202, receiving BAT offset information fed back by the terminal aiming at the TRS, wherein the BAT offset information is used for indicating the receiving time of the terminal receiving RE in at least one RE.

After receiving the RE for transmitting the TRS, the terminal may record a time stamp of receiving the RE, which may indicate a time point when the terminal received the RE.

Thereafter, the terminal may generate BAT offset information according to a time stamp (for indicating a time when the terminal received the RE) corresponding to the RE in the at least one RE.

In one embodiment, the BAT offset information includes a timestamp generated by the terminal after receiving the RE of the at least one RE. In another embodiment, the timestamp (indicating the time when the terminal receives the RE) may be processed to obtain other data, and the data may also indicate the time when the terminal receives the RE, for example, there is a correspondence between the timestamp and the time identifier, through which the time identifier corresponding to the timestamp may be obtained, and the BAT offset information may include the time identifier corresponding to the RE in the at least one RE.

After generating BAT offset information, the terminal can send the BAT offset information to the base station, and the base station can receive BAT offset information fed back by the terminal for TRS.

Embodiments of the present disclosure are not limited with respect to how the terminal may send BAT offset information to the base station. In one embodiment, the terminal may transmit the BAT offset information to the terminal through PUCCH (Physical Uplink Control Channel ) or PUSCH (Physical Uplink SHARED CHANNEL, physical Uplink shared channel).

S203, generating a first BAT offset according to the BAT offset information and the sending time of RE in at least one RE.

The base station may record a time stamp of when each RE of the at least one RE was transmitted, the time stamp indicating a transmission time of the RE.

After receiving the BAT offset information, the base station can determine the time when the RE in at least one RE is received by the terminal according to the BAT offset information, and can calculate the time difference between the transmission of the RE in the at least one RE at the base station and the reception of the terminal according to the time when the RE in the at least one RE is received by the terminal and the time when the base station transmits.

If at least one RE is 1 RE, the time difference between the sending and receiving of the base station and the terminal of the 1 RE is the first BAT offset. If the at least one RE is a plurality of REs, a time difference between transmission and reception of the base station and the terminal of any one of the plurality of REs may be used as the first BAT offset, and correspondingly, generating the first BAT offset according to BAT offset information and transmission time of the RE in the at least one RE may include: and calculating the time difference between the transmission of the base station and the reception of the terminal of any RE according to the time of the reception of the terminal of any RE in the at least one RE and the time of the transmission of the base station, and taking the time difference as a first BAT.

Or if the at least one RE is a plurality of REs, an average value of time differences between transmission and reception of the base station and the terminal of any number of REs in the plurality of REs may be used as the first BAT offset, and generating the first BAT offset according to BAT offset information and transmission time of the REs in the at least one RE may include: and calculating an average value of time differences between the transmission of the base station and the reception of the terminal of at least two REs according to the time of the terminal received by at least two REs in the at least one RE and the time of the transmission of the base station, and taking the average value as a first BAT.

For example, if the plurality of REs is 4 REs, an average value of time differences between transmission from the base station and reception from the terminal of any two REs among the 4 REs may be applied as the first BAT offset.

In another embodiment, generating the first BAT offset according to BAT offset information and a transmission time of an RE in at least one RE may include: calculating the time difference between the transmission and the reception of the RE in at least one RE according to BAT offset information and the transmission time of the RE in the RE; and calculating the average value of the time difference to obtain a first BAT offset.

If the at least one RE is a plurality of REs, the time difference between transmission and reception of the REs in the at least one RE may be the time difference between transmission and reception of some REs in the plurality of REs or the time difference between transmission and reception of all REs in the plurality of REs.

For example, the at least one RE is 4 REs, the time differences of the 4 REs on the transmission and the reception are calculated according to the BAT offset information and the transmission time of the REs in the at least one RE, 4 time differences are obtained, an average value of the 4 time differences is calculated, and the average value is used as the first BAT offset.

S204, the first BAT offset is sent to TSCTSF network elements.

Embodiments of the present disclosure are not limited with respect to how the base station points to TSCTSF network elements. In one embodiment, the base station may send the first BAT offset to the UPF network element, then the UPF network element sends the first BAT offset to the SMF network element, the SMF network element sends the first BAT offset to the PCF network element, and finally the PCF network element sends the first BAT offset to the TSCTSF network element.

According to the technical scheme provided by the embodiment of the disclosure, the measurement of the BAT offset information is realized by sending TRS to the terminal through at least one RE and receiving the BAT offset information fed back by the terminal for the TRS, the first BAT offset is generated according to the BAT offset information and the sending time of the RE in at least one RE, and the first BAT offset is sent to TSCTSF network elements, so that the BAT offset is provided by a wireless side, and a system and equipment which need to use the BAT offset for business arrangement and other works can acquire the BAT offset from TSCTSF network elements.

In one embodiment, as shown in fig. 3, after the base station sends the first BAT offset to TSCTSF network elements, S301 to S302 may be further included.

S301, re-measuring the BAT offset to obtain a second BAT offset.

The manner of re-measuring the BAT offset may be referred to in the corresponding embodiment of fig. 2, and will not be described herein.

S302, when the second BAT offset is different from the first BAT offset in size, the second BAT offset is sent to TSCTSF network elements.

After obtaining the second BAT offset, the base station compares whether the first BAT offset and the second BAT offset are the same in size, and if the first BAT offset and the second BAT offset are different in size, the base station sends the second BAT offset to TSCTSF network elements; if the same, the second BAT offset may be discarded or placed without processing the second BAT offset.

In one embodiment, if the first BAT offset is the same as the second BAT offset, the base station may discard the second BAT offset, or place the second BAT offset without processing, and continue to periodically measure BAT offsets, and compare each obtained BAT offset with the last reported BAT offset, and when the two BAT offsets are different in size, report the BAT offset (i.e., the last measured BAT offset) different from the last reported BAT offset to the TSCTSF network element.

After the base station finishes reporting the first BAT offset, the BAT offset measurement is continuously performed, and when the newly measured second BAT offset is different from the first BAT offset, the second BAT offset is reported to the TSCTSF network element, so that the BAT offset stored in the TSCTSF network element is the latest BAT offset, the reference value is ensured, the resource waste caused by the base station frequently reporting the same BAT offset can be avoided, the communication resource between the base station and the TSCTSF network element is saved, and the processing resource (including the processing resource of the base station and the TSCTSF network element) required by maintaining the latest BAT offset in the TSCTSF network element is reduced.

In another embodiment, as shown in fig. 4, after the base station sends the first BAT offset to TSCTSF network elements, S401 to S402 may be further included.

S401, re-measuring the BAT offset to obtain a third BAT offset.

S402, when the difference of the third BAT offset and the first BAT offset is larger than a threshold value, the third BAT offset is sent to TSCTSF network elements.

After obtaining the third BAT offset, the base station compares the size difference between the first BAT offset and the third BAT offset, and if the size difference is larger than a threshold value, the base station sends the third BAT offset to TSCTSF network elements; if the size difference is not greater than the threshold, the third BAT offset may be discarded or placed without processing the third BAT offset.

In one embodiment, if the difference in the sizes of the first BAT offset and the third BAT offset is not greater than the threshold, the base station may discard the third BAT offset, or place the third BAT offset without processing, and continue to periodically measure BAT offsets, and compare each obtained BAT offset with the last reported BAT offset, and report to the TSCTSF network element a BAT offset (i.e., the last measured BAT offset) whose difference in size from the last reported BAT offset is greater than the threshold when the difference in the sizes of the two BAT offsets is greater than the threshold.

Among them, embodiments of the present disclosure are not limited as to how the threshold value is specifically sized. In one embodiment, the threshold is carried in the BAT offset measurement indication, and accordingly the size of the threshold is determined by the size of the BAT offset measurement indication threshold.

After the base station finishes reporting the first BAT offset, the base station continues to measure the BAT offset, and when the difference between the newly measured third BAT offset and the third BAT offset is greater than a threshold value, the third BAT offset is reported to the TSCTSF network element, so that the BAT offset stored in the TSCTSF network element has smaller difference from the current latest BAT offset, has higher reference value, and can also avoid resource waste caused by the base station frequently reporting the same BAT offset, save communication resources between the base station and the TSCTSF network element, and reduce processing resources (including processing resources of the base station and the TSCTSF network element) required by maintaining the latest BAT offset in the TSCTSF network element.

To facilitate understanding of the BAT offset acquisition method provided in the embodiments of the present disclosure, the following description will be made with reference to fig. 5, 6, and 7.

As shown in fig. 5, the process of transmitting the BAT offset measurement indication to the base station may include S501 to S503.

S501, the PCF network element starts the BAT offset self-adaptive support function and notifies the SMF network element.

S502, the SMF network element sends TSCAI information carrying BAT offset measurement indication to the UPF network element.

S503, the UPF network element forwards the TSCAI information to the base station, so as to send the BAT offset measurement indication to the base station.

And after receiving the BAT offset measurement instruction, the base station performs BAT offset measurement and reporting according to the BAT offset measurement instruction. Regarding the BAT offset measurement indication, specifically indicating how the base station performs BAT offset measurement, reference may be made to the corresponding embodiment of fig. 2, and details thereof are not repeated herein.

Taking the base station performing a BAT offset measurement process once as an example, as shown in fig. 6, the TRS sent by the base station to the terminal may be configured such that, under 1 port, each RE always differs by 4 subcarriers in the frequency domain, and the REs are uniformly distributed on 4 OFDM symbols, where the 4 OFDM symbols are distributed in 2 slots, and 2 of the 4 OFDM symbols are distributed in each slot.

The base station transmits a TRS to the terminal and records a time stamp of each RE for transmitting the TRS at the time of transmission, the time stamp indicating the time when the base station transmitted the RE.

In fig. 6, not all subcarriers are shown, and correspondingly, REs for transmitting TRSs are not shown.

After receiving the RE used for sending the TRS, the terminal records the time of receiving the RE to form a corresponding time stamp, and then generates BAT offset information according to the time stamp of the RE in a plurality of RE (a plurality of RE used for sending the TRS), and feeds back the BAT offset information to the base station through the PUCCH or the PUSCH.

Taking as an example that the BAT offset information includes a time stamp when the RE of the plurality of REs is received by the terminal, after receiving the BAT offset information, the base station calculates a time difference between transmission of each RE at the base station and reception of the terminal according to the BAT offset information and the time stamp (for indicating a time when the RE is transmitted to the terminal by the base station) of the RE of the plurality of REs recorded by the base station, and calculates an average value of the time differences of the plurality of REs, and uses the average value as the BAT offset.

It should be noted that only the time differences of two REs, i.e., time difference 1 and time difference 2 in fig. 6, are shown in fig. 6.

Thereafter, the base station may transmit the calculated BAT offset to TSCTSF network elements, wherein the process of transmitting the BAT offset to TSCTSF network elements by the base station may include S701 to S704 as shown in fig. 7.

S701, the base station sends BAT offset to the UPF network element.

S702, the UPF network element forwards the BAT offset to the SMF network element.

S703, the SMF network element forwards the BAT offset to the PCF network element.

S704, the PCF network element sends the BAT offset to TSCTSF network elements.

Based on the same inventive concept, a BAT offset acquisition device is also provided in the embodiments of the present disclosure, as described in the following embodiments. Since the principle of solving the problem of the embodiment of the device is similar to that of the embodiment of the method, the implementation of the embodiment of the device can be referred to the implementation of the embodiment of the method, and the repetition is omitted.

Fig. 8 shows a schematic diagram of a BAT offset acquisition apparatus in one embodiment of the present disclosure, as shown in fig. 8, the apparatus comprising: a first transmitting module 801, configured to transmit a tracking reference signal TRS to a terminal through at least one resource element RE; a receiving module 802, configured to receive BAT offset information fed back by a terminal for TRS, where the BAT offset information is used to indicate a receiving time when the terminal receives an RE of at least one RE; a generating module 803, configured to generate a first BAT offset according to BAT offset information and a transmission time of an RE in at least one RE; a second sending module 804 is configured to send the first BAT offset to a network element of the time sensitive communication time synchronization function TSCTSF.

In one embodiment of the present disclosure, a generating module 803 is configured to calculate a time difference between transmission and reception of the RE in the at least one RE according to the BAT offset information and a transmission time of the RE in the at least one RE; and calculating the average value of the time difference to obtain a first BAT offset.

In one embodiment of the present disclosure, the receiving module 802 is further configured to receive a BAT offset measurement indication; and the first sending module is used for sending the TRS to the terminal through at least one RE aiming at the BAT offset measurement indication.

In one embodiment of the present disclosure, the apparatus further comprises: a first measurement module 805 configured to re-measure the BAT offset to obtain a second BAT offset; the second sending module 804 is further configured to send the second BAT offset to the TSCTSF network element when the second BAT offset is different from the first BAT offset in size.

In one embodiment of the present disclosure, the apparatus further comprises: a second measurement module 806, configured to re-measure the BAT offset to obtain a third BAT offset; the second sending module 804 is further configured to send the third BAT offset to the TSCTSF network element when the difference in size between the third BAT offset and the first BAT offset is greater than a threshold.

Those skilled in the art will appreciate that the various aspects of the present disclosure may be implemented as a system, method, or program product. Accordingly, various aspects of the disclosure may be embodied in the following forms, namely: an entirely hardware embodiment, an entirely software embodiment (including firmware, micro-code, etc.) or an embodiment combining hardware and software aspects may be referred to herein as a "circuit," module "or" system.

An electronic device 900 according to such an embodiment of the present disclosure is described below with reference to fig. 9. The electronic device 900 shown in fig. 9 is merely an example and should not be construed to limit the functionality and scope of use of embodiments of the present disclosure in any way.

As shown in fig. 9, the electronic device 900 is embodied in the form of a general purpose computing device. Components of electronic device 900 may include, but are not limited to: the at least one processing unit 910, the at least one storage unit 920, and a bus 930 connecting the different system components (including the storage unit 920 and the processing unit 910).

Wherein the storage unit stores program code that is executable by the processing unit 910 such that the processing unit 910 performs steps according to various exemplary embodiments of the present disclosure described in the section "detailed description of the invention" above.

The storage unit 920 may include readable media in the form of volatile storage units, such as Random Access Memory (RAM) 9201 and/or cache memory 9202, and may further include Read Only Memory (ROM) 9203.

The storage unit 920 may also include a program/utility 9204 having a set (at least one) of program modules 9205, such program modules 9205 include, but are not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.

The bus 930 may be one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

The electronic device 900 may also communicate with one or more external devices 940 (e.g., keyboard, pointing device, bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 900, and/or any devices (e.g., routers, modems, etc.) that enable the electronic device 900 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 950. Also, electronic device 900 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through network adapter 960. As shown in fig. 9, the network adapter 960 communicates with other modules of the electronic device 900 over the bus 930. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 900, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.

From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a terminal device, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

In an exemplary embodiment of the present disclosure, a computer-readable storage medium, which may be a readable signal medium or a readable storage medium, is also provided. On which a program product is stored which enables the implementation of the method described above of the present disclosure. In some possible implementations, various aspects of the disclosure may also be implemented in the form of a program product comprising program code for causing a terminal device to carry out the steps according to the various exemplary embodiments of the disclosure as described in the section "detailed description" above of the disclosure, when the program product is run on the terminal device.

More specific examples of the computer readable storage medium in the present disclosure may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

In this disclosure, a computer readable storage medium may include a data signal propagated in baseband or as part of a carrier wave, with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Alternatively, the program code embodied on a computer readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

In particular implementations, the program code for carrying out operations of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server. In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet service provider).

In an exemplary embodiment of the present disclosure, there is also provided a computer program product including a computer program or computer instructions loaded and executed by a processor to cause the computer to carry out the steps according to the various exemplary embodiments of the present disclosure described in the section "detailed description" above.

It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.

Furthermore, although the steps of the methods in the present disclosure are depicted in a particular order in the drawings, this does not require or imply that the steps must be performed in that particular order, or that all illustrated steps be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.

From the description of the above embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a mobile terminal, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims.

Claims

1. A burst arrival time BAT offset acquisition method, comprising:

transmitting a tracking reference signal TRS to the terminal through at least one resource element RE;

Receiving BAT offset information fed back by the terminal aiming at the TRS, wherein the BAT offset information is used for indicating the receiving time of the terminal receiving the RE in the at least one RE;

generating a first BAT offset according to the BAT offset information and the sending time of RE in the at least one RE;

the first BAT offset is sent to a time sensitive communication time synchronization function TSCTSF network element.

2. The method of claim 1, wherein the generating the first BAT offset based on the BAT offset information and a transmission time of REs of the at least one RE comprises:

Calculating the time difference between the sending and receiving of the RE in the at least one RE according to the BAT offset information and the sending time of the RE in the at least one RE;

And calculating the average value of the time difference to obtain the first BAT offset.

3. The method of claim 1 or 2, wherein the at least one RE is a plurality of REs distributed over at least one orthogonal frequency division multiplexing, OFDM, symbol, the OFDM symbol of the at least one OFDM symbol being distributed with at least two REs of the plurality of REs.

4. A method according to claim 3, wherein the at least one OFDM symbol is a plurality of OFDM symbols, the plurality of OFDM symbols being distributed in at least one slot.

5. The method as recited in claim 1, further comprising:

Receiving a BAT offset measurement indication;

The sending, by at least one resource element RE, a tracking reference signal TRS to a terminal includes:

And for the BAT offset measurement indication, transmitting the TRS to a terminal through the at least one RE.

6. The method as recited in claim 1, further comprising:

re-measuring the BAT offset to obtain a second BAT offset;

And when the second BAT offset is different from the first BAT offset in size, sending the second BAT offset to the TSCTSF network element.

7. The method as recited in claim 1, further comprising:

re-measuring the BAT offset to obtain a third BAT offset;

And when the difference of the magnitude of the third BAT offset and the first BAT offset is larger than a threshold value, sending the third BAT offset to the TSCTSF network element.

8. A burst arrival time BAT offset acquisition apparatus, comprising:

a first transmitting module, configured to transmit a tracking reference signal TRS to a terminal through at least one resource element RE;

A receiving module, configured to receive BAT offset information fed back by the terminal for the TRS, where the BAT offset information is used to indicate a receiving time when the terminal receives an RE of the at least one RE;

a generating module, configured to generate a first BAT offset according to the BAT offset information and a sending time of an RE in the at least one RE;

and the second sending module is used for sending the first BAT offset to a network element of the time sensitive communication time synchronization function TSCTSF.

9. An electronic device, comprising:

A processor; and

A memory for storing executable instructions of the processor;

Wherein the processor is configured to perform the burst arrival time BAT offset acquisition method of any one of claims 1 to 7 via execution of the executable instructions.

10. A computer readable storage medium having stored thereon a computer program, which when executed by a processor implements the burst arrival time BAT offset acquisition method of any one of claims 1 to 7.

11. A computer program product comprising a computer program or computer instructions loaded and executed by a processor to cause a computer to implement the burst arrival time BAT offset acquisition method of any one of claims 1 to 7.