Method and apparatus for adjusting time-frequency synchronization

Abstract

The present disclosure provides a time-frequency synchronization adjustment method and device. According to the time-frequency synchronization adjustment method and device provided by the present disclosure, a terminal device can receive configuration information sent by a base station; time-frequency adjustment information sent by the base station is detected according to the configuration information, the time-frequency adjustment information is adjustment information related to time-domain and / or frequency-domain synchronization; and time-domain and / or frequency-domain synchronization is adjusted according to the time-frequency adjustment information. The present disclosure can ensure that the time-domain or frequency-domain synchronization error of the terminal device is maintained within a reasonable range, thereby improving the accuracy of time-domain or frequency-domain synchronization.

Description

Technical Field

[0001] This disclosure relates to the field of wireless communication technology, and in particular to a method and apparatus for adjusting time and frequency synchronization. Background Technology

[0002] In the research of wireless communication technology, satellite communication is considered an important aspect of the future development of wireless communication technology. Satellite communication refers to communication conducted by terrestrial radio communication equipment using satellites as relays. The characteristics of satellite communication are: large communication range; communication can be conducted between any two points within the coverage area of ​​the satellite's emitted radio waves; and it is not easily affected by land-based disasters (high reliability). As a supplement to current terrestrial cellular communication systems, it is foreseeable that in future wireless communication systems, satellite communication systems and terrestrial cellular communication systems will gradually achieve deep integration, truly realizing the Internet of Things.

[0003] In satellite communication scenarios, the long signal transmission distance between the transmitter and receiver leads to significant data transmission delays. For transmissions involving uplink and downlink connections, the terminal needs to maintain uplink synchronization based on Global Navigation Satellite System (GNSS) measurements and other auxiliary information. Currently, time-frequency synchronization can be maintained by measuring the Reference Signal (RS); however, relying solely on RS measurements cannot guarantee the accuracy of time-domain or frequency-domain synchronization. Summary of the Invention

[0004] This disclosure provides a time-frequency synchronization adjustment method and apparatus, which can ensure that the synchronization error of the terminal device in the time domain or frequency domain is maintained within a reasonable range, thereby improving the accuracy of time-domain or frequency-domain synchronization.

[0005] A first aspect of this disclosure provides a method for adjusting time-frequency synchronization, the method being executed by a terminal device, the method comprising:

[0006] Receive configuration information sent by the base station;

[0007] The time-frequency adjustment information sent by the base station is detected according to the configuration information, and the time-frequency adjustment information is adjustment information related to time domain and / or frequency domain synchronization;

[0008] Adjust the time domain and / or frequency domain synchronization according to the time-frequency adjustment information.

[0009] In some embodiments of this disclosure, detecting the time-frequency adjustment information sent by the base station according to the configuration information includes:

[0010] According to the configuration information, time-frequency adjustment signaling is detected within the uplink time interval. The time-frequency adjustment signaling contains time-frequency adjustment information. The configuration information includes a first format, the location of the time domain resource to be detected, and the location of the frequency domain resource to be detected. The first format is the signaling format of the time-frequency adjustment signaling.

[0011] In some embodiments of this disclosure, detecting the time-frequency adjustment information sent by the base station according to the configuration information includes:

[0012] According to the configuration information, time-frequency adjustment signaling is detected on a preset time domain unit within the uplink time interval. The time-frequency adjustment signaling contains time-frequency adjustment information. The configuration information includes a first format and the location of the frequency domain resource to be detected. The first format is the signaling format of the time-frequency adjustment signaling.

[0013] In some embodiments of this disclosure, the method further includes:

[0014] Determine the uplink time interval configured for the base station.

[0015] In some embodiments of this disclosure, detecting the time-frequency adjustment information sent by the base station according to the configuration information includes:

[0016] Based on the configuration information, a control command is detected. The information field of the control command carries time-frequency adjustment information. The configuration information includes a second format, the location of the time-domain resource to be detected, and the location of the frequency-domain resource to be detected. The second format is the command format of the control command. Based on the location information of the information field, the time-frequency adjustment information is detected on the control command.

[0017] In some embodiments of this disclosure, the method further includes:

[0018] Determine the location information of the predefined information domain; or,

[0019] The location configuration of the information field sent by the base station is used to configure the location information of the information field;

[0020] The location information of the information field includes at least one of the location and length of the information field.

[0021] In some embodiments of this disclosure, the time-frequency adjustment information includes a preset adjustment value or an offset adjustment value for the current time-frequency, and the adjustment of time-domain and / or frequency-domain synchronization according to the time-frequency adjustment information includes:

[0022] Adjust the time domain and / or frequency domain synchronization according to the preset adjustment value or the offset adjustment value.

[0023] In some embodiments of this disclosure, the method further includes:

[0024] The effective time configuration information for receiving GNSS information from the Global Navigation Satellite System; and / or,

[0025] Extended time configuration information for receiving GNSS information from the Global Navigation Satellite System.

[0026] In some embodiments of this disclosure, the method further includes:

[0027] Based on the effective time configuration information, determine the effective time of the current GNSS information; and / or,

[0028] Update the effective time of the current GNSS information according to the extended time configuration information.

[0029] In some embodiments of this disclosure, adjusting the time-domain and / or frequency-domain synchronization according to the time-frequency adjustment information includes:

[0030] Based on the time-frequency adjustment information, time-domain synchronization and / or frequency-domain synchronization adjustments are performed within the effective time of the current GNSS information.

[0031] In some embodiments of this disclosure, the method further includes:

[0032] Based on the application time indication of the time-frequency adjustment information, the adjustment time for time-frequency synchronization is determined;

[0033] Adjustments for time-domain synchronization and / or frequency-domain synchronization are performed at the adjustment time.

[0034] In some embodiments of this disclosure, the method further includes:

[0035] The application time indication of the time-frequency adjustment information sent by the base station.

[0036] A second aspect of this disclosure provides a method for adjusting time-frequency synchronization, the method being executed by a base station, the method comprising:

[0037] Configuration information is sent to the terminal device, and the configuration information is used to detect time and frequency adjustment information.

[0038] In some embodiments of this disclosure, sending configuration information to the terminal device includes:

[0039] The terminal device is sent configuration information including a first format, the location of the time-domain resource to be inspected, and the location of the frequency-domain resource to be inspected. The configuration information is used to detect time-frequency adjustment signaling within the uplink time interval. The first format is the signaling format of the time-frequency adjustment signaling.

[0040] In some embodiments of this disclosure, sending configuration information to the terminal device includes:

[0041] The terminal device is sent configuration information including a first format and the location of the frequency domain resource to be detected. The configuration information is used to detect time-frequency adjustment signaling on a preset time domain unit within the uplink time interval. The first format is the signaling format of the time-frequency adjustment signaling.

[0042] In some embodiments of this disclosure, sending configuration information to the terminal device includes:

[0043] The terminal device is sent configuration information including a second format, the location of the time-domain resource to be tested, and the location of the frequency-domain resource to be tested. The configuration information is used to detect control commands. The information field of the control commands carries time-frequency adjustment information. The second format is the command format of the control commands.

[0044] In some embodiments of this disclosure, the method further includes:

[0045] Send the uplink time interval to the terminal device.

[0046] In some embodiments of this disclosure, the method further includes:

[0047] Send the location configuration of the information field to the terminal device, wherein the location configuration is used to configure the location information of the information field;

[0048] The location information of the information field includes at least one of the location and length of the information field.

[0049] In some embodiments of this disclosure, the method further includes:

[0050] Send Global Navigation Satellite System (GNSS) information activation time configuration information to the terminal device, wherein the activation time configuration information is used to determine the current activation time of the GNSS information; and / or,

[0051] The system sends extended time configuration information of Global Navigation Satellite System (GNSS) information to the terminal device. The extended time configuration information is used to update the effective time of the current GNSS information.

[0052] In some embodiments of this disclosure, the method further includes:

[0053] An application time indication is sent to the terminal device to indicate the time and frequency adjustment information. The application time indication is used to determine the adjustment time for time and frequency synchronization.

[0054] A third aspect of this disclosure provides a terminal device, the terminal device comprising:

[0055] The receiving module is used to receive configuration information sent by the base station;

[0056] The processing module is used to detect the time-frequency adjustment information sent by the base station according to the configuration information, wherein the time-frequency adjustment information is time-domain and / or frequency-domain synchronization-related adjustment information;

[0057] The processing module is also used to adjust the time domain and / or frequency domain synchronization according to the time-frequency adjustment information.

[0058] A fourth aspect of this disclosure provides a base station, the base station comprising:

[0059] The sending module is used to send configuration information to the terminal device, the configuration information being used to detect time and frequency adjustment information.

[0060] A fifth aspect embodiment of this disclosure provides a communication device comprising: a transceiver; a memory; and a processor, respectively connected to the transceiver and the memory, configured to control the transmission and reception of wireless signals of the transceiver by executing computer-executable instructions on the memory, and capable of implementing the methods of the first or second aspect embodiments of this disclosure.

[0061] A sixth aspect of this disclosure provides a computer storage medium storing computer-executable instructions; when executed by a processor, the computer-executable instructions can implement the methods of the first or second aspect of this disclosure.

[0062] A sixth aspect of this disclosure provides a communication system including a terminal device and a base station. The terminal device is configured to perform a time-frequency synchronization adjustment method according to a first aspect embodiment, and the base station is configured to perform a time-frequency synchronization adjustment method according to a second aspect embodiment.

[0063] This disclosure provides a method and apparatus for adjusting time-frequency synchronization. It can detect adjustment information related to time-domain and / or frequency-domain synchronization sent by the base station based on configuration information sent by the base station, and adjust the time-domain and / or frequency-domain synchronization according to this adjustment information. This effectively ensures that the synchronization error of the terminal in the time or frequency domain remains within a reasonable range, improving the accuracy of time-domain or frequency-domain synchronization.

[0064] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0065] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0066] Figure 1 This is a flowchart illustrating a time-frequency synchronization adjustment method according to an embodiment of the present disclosure;

[0067] Figure 2 This is a schematic diagram illustrating an example of determining the current GNSS information effective time according to an embodiment of this disclosure;

[0068] Figure 3 This is a schematic diagram illustrating an example of determining the current GNSS information effective time according to an embodiment of this disclosure;

[0069] Figure 4 This is a flowchart illustrating a time-frequency synchronization adjustment method according to an embodiment of the present disclosure;

[0070] Figure 5 This is a flowchart illustrating a time-frequency synchronization adjustment method according to an embodiment of the present disclosure;

[0071] Figure 6 This is a flowchart illustrating a time-frequency synchronization adjustment method according to an embodiment of the present disclosure;

[0072] Figure 7 This is a flowchart illustrating a time-frequency synchronization adjustment method according to an embodiment of the present disclosure;

[0073] Figure 8 This is a flowchart illustrating a time-frequency synchronization adjustment method according to an embodiment of the present disclosure;

[0074] Figure 9 This is a flowchart illustrating a time-frequency synchronization adjustment method according to an embodiment of the present disclosure;

[0075] Figure 10 This is a timing diagram of a time-frequency synchronization adjustment method according to an embodiment of the present disclosure;

[0076] Figure 11 This is a block diagram of a time-frequency synchronization adjustment device according to an embodiment of the present disclosure;

[0077] Figure 12 This is a block diagram of a time-frequency synchronization adjustment device according to an embodiment of the present disclosure;

[0078] Figure 13 This is a schematic diagram of the structure of a communication device according to an embodiment of the present disclosure;

[0079] Figure 14 This is a schematic diagram of the structure of a chip provided in an embodiment of the present disclosure. Detailed Implementation

[0080] Embodiments of this disclosure are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting this disclosure.

[0081] In satellite communication scenarios, the long signal transmission distance between the transmitter and receiver leads to significant data transmission delays. For transmissions involving uplink and downlink connections, the terminal needs to maintain uplink synchronization based on Global Navigation Satellite System (GNSS) measurements and other auxiliary information. Currently, time-frequency synchronization can be maintained by measuring the Reference Signal (RS); however, relying solely on RS measurements cannot guarantee the accuracy of time-domain or frequency-domain synchronization.

[0082] Therefore, this disclosure proposes a time-frequency synchronization adjustment method and apparatus, which can ensure that the synchronization error of the terminal device in the time domain or frequency domain is maintained within a reasonable range, thereby improving the accuracy of time-domain or frequency-domain synchronization.

[0083] Figure 1 A flowchart illustrating a time-frequency synchronization adjustment method according to an embodiment of the present disclosure is shown. Figure 1 As shown, the method should be executed by a terminal device and may include the following steps.

[0084] Step 101: Receive configuration information sent by the base station.

[0085] The configuration information may include information related to detecting time and frequency adjustment information transmitted by the base station. The configuration information is transmitted by the base station through higher-layer signaling or physical-layer signaling, where higher-layer signaling may include system information, Radio Resource Control (RRC) signaling, or Media Access Control (MAC) control elements (CE).

[0086] Step 102: Detect the time and frequency adjustment information sent by the base station according to the configuration information.

[0087] The time-frequency adjustment information refers to adjustment information related to time-domain and / or frequency-domain synchronization. This information can be an absolute adjustment value, such as a preset adjustment value, which may include a time-domain preset adjustment value and a frequency-domain preset adjustment value. Alternatively, the time-frequency adjustment information can be an adjustment value relative to a reference value. For example, the reference value could be an offset value relative to the current terminal's time-domain or frequency-domain adjustment value, equivalent to an offset adjustment value for the current time and frequency, which may include a time-domain offset adjustment value and a frequency-domain offset adjustment value. In this embodiment, the time-domain and / or frequency-domain synchronization-related adjustment information sent by the base station can be detected and obtained at a specific location based on configuration information.

[0088] Step 103: Adjust the time domain and / or frequency domain synchronization according to the time-frequency adjustment information.

[0089] In an optional embodiment of this disclosure, the steps may include: adjusting time-domain and / or frequency-domain synchronization according to a preset adjustment value or an offset adjustment value. Specifically, the current time-domain synchronization value may be adjusted to a preset time-domain adjustment value and / or the current frequency-domain synchronization value may be adjusted to a preset frequency-domain adjustment value; alternatively, the offset value of the current time-domain synchronization may be adjusted according to a time-domain offset adjustment value and / or the offset value of the current frequency-domain synchronization may be adjusted according to a frequency-domain offset adjustment value. By adjusting the synchronization values ​​of the time-domain and / or frequency-domain based on the above-described time-frequency adjustment information, the synchronization error of the terminal in the time-domain and / or frequency-domain can be effectively maintained within a reasonable range, effectively maintaining uplink time-frequency synchronization.

[0090] In specific application scenarios, for transmissions involving uplink and downlink connections, the terminal needs to maintain uplink synchronization based on Global Navigation Satellite System (GNSS) measurements and some auxiliary information. However, in the 3rd Generation Partnership Project (3GPP) R18 standard, when supporting services with long transmission times, if the GNSS information expires, the terminal needs to disconnect from the network and enter an idle state to re-execute the GNSS information measurement process. However, this method cannot keep the GNSS information active, thus failing to support continuous communication between the terminal and the network, and easily leading to certain energy consumption.

[0091] In view of this, as an optional approach in this embodiment, the configuration information may further include the terminal device's own Global Navigation Satellite System (GNSS) information. Accordingly, the terminal device can perform time-domain synchronization and / or frequency-domain synchronization adjustments within the effective time of the current GNSS information based on the time-frequency adjustment information. Furthermore, to ensure continuous communication between the terminal and the network side and to achieve closed-loop synchronization adjustments in the time and / or frequency domains, the terminal device can promptly obtain the available duration of the current GNSS information. When the current GNSS information becomes invalid, it can determine the effective time of the GNSS information by extending or re-measuring the available duration, thereby keeping the GNSS information active. In specific application scenarios, as an optional approach, the implementation steps may include: receiving the effective time configuration information of the Global Navigation Satellite System (GNSS) information; and / or receiving the extended time configuration information of the Global Navigation Satellite System (GNSS) information; determining the effective time of the current GNSS information based on the effective time configuration information; and / or updating the effective time of the current GNSS information based on the extended time configuration information. This implementation method can reduce the frequency of GNSS information measurement performed by the terminal device, thereby reducing the energy consumption of the terminal device.

[0092] Correspondingly, the GNSS information's effective time configuration information can carry the length information of the current GNSS information's available time. Terminal devices can determine the available time of their own GNSS information based on this length information, that is, update the GNSS information's expiration time according to the available time of their own GNSS information. For example... Figure 2 As shown, if the effective time configuration information of GNSS information is received at point A before the current GNSS information expires, and the effective time configuration information of GNSS information indicates that the available time of the current GNSS information is 10 seconds, then a new GNSS expiration time point A′ can be re-determined based on this available time length information. During the effective time of the current GNSS information between point A and point A′, while the terminal device maintains a communication connection with the base station (without entering IDLE state), no GNSS information measurement operation is performed. Furthermore, the terminal device can also receive extended time configuration information of GNSS information sent by the base station before or after the current GNSS information expires. The extended time configuration information of GNSS information may include information related to whether to extend the effective time of the current GNSS information and the extension duration. The extension duration-related information may include at least one of the extended effective time length of the current GNSS information and the extension start time point. Further, the terminal device can extend the effective time of the current GNSS information at the current GNSS information expiration time point and / or the extension start time point, with the extension length being this time length. Figure 3 As shown, when the terminal device determines that the current GNSS information is about to expire or has already expired, it can receive the GNSS information extension time configuration information sent by the base station. The GNSS information extension time configuration information of the base station indicates that the extension start time point (such as the current GNSS information expiration time point) is B, and the effective time extension length is b (such as 10s). Therefore, the terminal can further extend the effective time by a length of b at the extension start time point B indicated by the configuration information, and further extend it to obtain a new GNSS expiration time point B′. During the effective time of the current GNSS information between point B and point B′, the terminal device maintains a communication connection with the base station (without entering the IDLE state) and does not perform GNSS information measurement operations.

[0093] In an optional embodiment of this disclosure, when adjusting time-domain and / or frequency-domain synchronization based on time-frequency adjustment information, the terminal device can perform the adjustment of time-domain and / or frequency-domain synchronization at the indicated time. Accordingly, the embodiment steps may include: determining the adjustment time for time-frequency synchronization based on the application time indication of the time-frequency adjustment information; and performing the adjustment of time-domain and / or frequency-domain synchronization at the adjustment time. Correspondingly, the embodiment steps may also include: receiving the application time indication of the time-frequency adjustment information sent by the base station. For example, if the adjustment time for time-frequency synchronization is determined to be a slot 10 slots after the current time-domain unit based on the application time indication of the time-frequency adjustment information, then the terminal device can begin performing the adjustment of time-domain and / or frequency-domain synchronization at a slot 10 slots after the current time-domain unit. In this way, the application time setting for time-domain and / or frequency-domain synchronization adjustments can be realized, meeting the personalized needs of users for time-domain and / or frequency-domain synchronization adjustments.

[0094] It should be noted that the embodiments of this disclosure may use any one or more of the optional implementation steps described above to adjust the time domain and / or frequency domain synchronization. For example, the time domain and / or frequency domain synchronization may be adjusted according to a preset adjustment value or an offset adjustment value during the original effective time of the current GNSS information, or the time domain and / or frequency domain synchronization may be adjusted according to a preset adjustment value or an offset adjustment value during the extended effective time of the current GNSS information, or the time domain and / or frequency domain synchronization may be adjusted according to a preset adjustment value or an offset adjustment value during the adjustment time within the extended effective time of the current GNSS information, etc., and no specific limitation is made here.

[0095] In summary, the time-frequency synchronization adjustment method provided in this disclosure can detect time-domain and / or frequency-domain synchronization-related adjustment information sent by the base station based on the configuration information sent by the base station, and adjust the time-domain and / or frequency-domain synchronization according to the time-domain and / or frequency-domain synchronization-related adjustment information. This can effectively ensure that the synchronization error of the terminal in the time domain or frequency domain is maintained within a reasonable range, improving the accuracy of time-domain or frequency-domain synchronization. Simultaneously, it can reduce the frequency at which the terminal device performs GNSS information measurements, reduce the energy consumption of the terminal device, and meet the personalized needs of users for time-domain and / or frequency-domain synchronization adjustments.

[0096] Figure 4 A flowchart illustrating a time-frequency synchronization adjustment method according to an embodiment of the present disclosure is shown. This method is executed by a terminal device, based on... Figure 1 The illustrated embodiment, as Figure 4 As shown, it may include the following steps.

[0097] Step 201: Receive configuration information sent by the base station, including the first format, the location of the time-domain resource to be inspected, and the location of the frequency-domain resource to be inspected.

[0098] The first format is the signaling format for time-frequency adjustment signaling. Additionally, configuration information may include the number of detections, aggregation level, etc., which are not specifically limited here.

[0099] Step 202: Based on the configuration information, detect the time-frequency adjustment signaling within the uplink time interval. The time-frequency adjustment signaling contains time-frequency adjustment information.

[0100] The time-frequency adjustment signaling can be higher-layer signaling such as Radio Resource Control (RRC) signaling, Media Access Control (MAC) control element (CE) or physical layer signaling such as Downlink Control Information (DCI). The time-frequency adjustment information is adjustment information related to time-domain and / or frequency-domain synchronization. The time-frequency adjustment information can be an absolute adjustment value, such as a preset adjustment value, which can include a time-domain preset adjustment value and a frequency-domain preset adjustment value. In addition, the time-frequency adjustment information can also be an adjustment value relative to a certain reference value. For example, the reference value can be an offset value relative to the current terminal's time-domain or frequency-domain adjustment value, that is, equivalent to the current time-frequency offset adjustment value, which can include a time-domain offset adjustment value and a frequency-domain offset adjustment value.

[0101] In specific application scenarios, before executing the steps of this embodiment, the embodiment steps further include: determining the uplink time interval configured by the base station. For this embodiment, given that the configuration information includes the location of the time-domain resource to be detected and the location of the frequency-domain resource to be detected, the detection of time-frequency adjustment signaling can be achieved at specific time-domain resources and / or specific frequency-domain resource locations within the uplink time interval, thereby obtaining the time-frequency adjustment information contained in the time-frequency adjustment signaling.

[0102] Step 203: Adjust the time domain and / or frequency domain synchronization according to the time-frequency adjustment information.

[0103] For details regarding the embodiments disclosed herein, please refer to the relevant description in step 103 of the embodiment, which will not be repeated here.

[0104] In summary, the time-frequency synchronization adjustment method provided in this embodiment can detect time-domain and / or frequency-domain synchronization-related adjustment information sent by the base station within an uplink time interval, based on configuration information including a first format, the location of the time-domain resource to be detected, and the location of the frequency-domain resource to be detected, and adjust the time-domain and / or frequency-domain synchronization according to the time-domain and / or frequency-domain synchronization-related adjustment information. This can effectively ensure that the synchronization error of the terminal in the time domain or frequency domain is maintained within a reasonable range, improving the accuracy of time-domain or frequency-domain synchronization. Simultaneously, it can reduce the frequency at which the terminal device performs GNSS information measurements, reduce the energy consumption of the terminal device, and meet the personalized needs of users for time-domain and / or frequency-domain synchronization adjustments.

[0105] Figure 5 A flowchart illustrating a time-frequency synchronization adjustment method according to an embodiment of the present disclosure is shown. This method is executed by a terminal device, based on... Figure 1 The illustrated embodiment, as Figure 5 As shown, it may include the following steps.

[0106] Step 301: Receive configuration information sent by the base station, including the first format and the location of the frequency domain resources to be tested.

[0107] The first format is the signaling format for time-frequency adjustment signaling. Additionally, configuration information may include the number of detections, aggregation level, etc., which are not specifically limited here.

[0108] Step 302: According to the configuration information, detect the time and frequency adjustment signaling on the preset time domain unit within the uplink time interval. The time and frequency adjustment signaling contains time and frequency adjustment information.

[0109] The time-frequency adjustment signaling can be higher-layer signaling such as Radio Resource Control (RRC) signaling, Media Access Control (MAC) control element (CE) or physical layer signaling such as Downlink Control Information (DCI); the preset time unit can be each time unit (such as a subframe) within the uplink time interval; the time-frequency adjustment information is adjustment information related to time-domain and / or frequency-domain synchronization. The time-frequency adjustment information can be an absolute adjustment value, such as a preset adjustment value, which can include a time-domain preset adjustment value and a frequency-domain preset adjustment value; in addition, the time-frequency adjustment information can also be an adjustment value relative to a certain reference value. For example, the reference value can be an offset value relative to the current terminal's time-domain or frequency-domain adjustment value, that is, equivalent to the current time-frequency offset adjustment value, which can include a time-domain offset adjustment value and a frequency-domain offset adjustment value.

[0110] In specific application scenarios, as a possible implementation, before executing the steps of this embodiment, the steps further include: determining the uplink time interval configured by the base station. For this embodiment, the detection of time-domain adjustment signaling can be performed on a preset time-domain unit within the uplink time interval, such as each time-domain unit, thereby obtaining the time-frequency adjustment information contained in the signaling carrying time-frequency adjustment information. Since the configuration information includes the location of the frequency domain resource to be detected, the detection of time-frequency adjustment signaling can be performed at a specific frequency domain resource location on a preset time-domain unit within the uplink time interval, thereby obtaining the frequency domain adjustment information contained in the time-frequency adjustment signaling.

[0111] Step 303: Adjust the time domain and / or frequency domain synchronization according to the time-frequency adjustment information.

[0112] For details regarding the embodiments disclosed herein, please refer to the relevant description in step 103 of the embodiment, which will not be repeated here.

[0113] In summary, the time-frequency synchronization adjustment method provided in this embodiment can detect time-domain and / or frequency-domain synchronization-related adjustment information sent by the base station within a preset time unit in the uplink time interval, based on configuration information including a first format and the location of the frequency domain resources to be detected, and adjust the time-domain and / or frequency-domain synchronization according to the time-domain and / or frequency-domain synchronization-related adjustment information. This can effectively ensure that the synchronization error of the terminal in the time domain or frequency domain is maintained within a reasonable range, improving the accuracy of time-domain or frequency-domain synchronization. Simultaneously, it can reduce the frequency at which the terminal device performs GNSS information measurements, reduce the energy consumption of the terminal device, and meet the personalized needs of users for time-domain and / or frequency-domain synchronization adjustments.

[0114] Figure 6 A flowchart illustrating a time-frequency synchronization adjustment method according to an embodiment of the present disclosure is shown. This method is executed by a terminal device, based on... Figure 1 The illustrated embodiment, as Figure 6 As shown, it may include the following steps.

[0115] Step 401: Receive configuration information sent by the base station, including the second format, the location of the time-domain resource to be inspected, and the location of the frequency-domain resource to be inspected.

[0116] The second format is the instruction format for control commands. Additionally, configuration information may include the number of detections, aggregation level, etc., which are not specifically limited here.

[0117] Step 402: Based on the configuration information, detect the control command. The information field of the control command carries time and frequency adjustment information.

[0118] Among them, the control command is the command for scheduling data transmission; the position and length information of the information field are predefined or determined by the configuration information sent by the receiving base station.

[0119] Step 403: Based on the location information in the information domain, detect the time-frequency adjustment information in the control command.

[0120] In specific application scenarios, before performing the steps of this embodiment, as a possible implementation, the steps of the embodiment may further include: determining the location information of a predefined information domain; or, receiving the location configuration of the information domain sent by the base station, wherein the location configuration is used to configure the location information of the information domain; wherein the location information of the information domain includes at least one of the location and length of the information domain.

[0121] Step 404: Adjust the time domain and / or frequency domain synchronization according to the time-frequency adjustment information.

[0122] For details regarding the embodiments disclosed herein, please refer to the relevant description in step 103 of the embodiment, which will not be repeated here.

[0123] In summary, the time-frequency synchronization adjustment method provided in this disclosure can detect time-domain and / or frequency-domain synchronization-related adjustment information sent by the base station in the information domain of the control command, based on configuration information including a second format, the location of the time-domain resource to be detected, and the location of the frequency-domain resource to be detected, sent by the base station. Time-domain and / or frequency-domain synchronization can then be adjusted according to this adjustment information. This effectively ensures that the synchronization error of the terminal in the time or frequency domain remains within a reasonable range, improving the accuracy of time-domain or frequency-domain synchronization. Simultaneously, it can reduce the frequency at which the terminal device performs GNSS information measurements, reducing the energy consumption of the terminal device and meeting the personalized needs of users for time-domain and / or frequency-domain synchronization adjustments.

[0124] Figure 7 This is a flowchart illustrating a time-frequency synchronization adjustment method according to an embodiment of the present disclosure. The method is executed by a base station and may include the following steps.

[0125] Step 501: Send configuration information to the terminal device. The configuration information is used to detect time and frequency adjustment information.

[0126] The configuration information may include information related to the terminal device detecting time-frequency adjustment information. This configuration information is transmitted from the base station to the terminal device via higher-layer signaling or physical-layer signaling. The higher-layer signaling may include system information, Radio Resource Control (RRC) signaling, or Media Access Control (MAC) control elements (CE). In this embodiment, by sending configuration information to the terminal device, the terminal device can detect the time-frequency adjustment information sent by the base station based on the configuration information, and further achieve synchronization adjustments in the time domain and / or frequency domain based on the time-frequency adjustment information.

[0127] In one possible implementation of this disclosure, the steps may include: sending configuration information to a terminal device, including a first format, the location of a time-domain resource to be detected, and the location of a frequency-domain resource to be detected. The configuration information is used to detect time-frequency adjustment signaling within an uplink time interval, and the first format is the signaling format of the time-frequency adjustment signaling. Correspondingly, the steps may also include: sending an uplink time interval to the terminal device. By sending configuration information including the first format, the location of the time-domain resource to be detected, and the location of the frequency-domain resource to be detected to the terminal device, the terminal device can detect the time-frequency adjustment information sent by the base station within the uplink time interval based on the configuration information, and further realize synchronization adjustment of the time domain and / or frequency domain based on the time-frequency adjustment information.

[0128] In one possible implementation of this disclosure, the steps may include: sending configuration information including a first format and the location of the frequency domain resource to be detected to a terminal device. The configuration information is used to detect time-frequency adjustment signaling in a preset time domain unit within an uplink time interval. The first format is the signaling format of the time-frequency adjustment signaling. Correspondingly, the steps may also include: sending an uplink time interval to the terminal device. By sending configuration information including the first format and the location of the frequency domain resource to be detected to the terminal device, the terminal device can detect the time-frequency adjustment information sent by the base station in a preset time domain unit within the uplink time interval based on the configuration information, and further realize synchronization adjustment of the time domain and / or frequency domain based on the time-frequency adjustment information.

[0129] In one possible implementation of this disclosure, the steps may include: sending configuration information to a terminal device, including a second format, the location of a time-domain resource to be detected, and the location of a frequency-domain resource to be detected. The configuration information is used to detect control commands, and the information field of the control commands carries time-frequency adjustment information. The second format is the command format of the control commands. Correspondingly, the steps may also include: sending a location configuration of the information field to the terminal device, the location configuration being used to configure the location information of the information field; wherein the location information of the information field includes at least one of the location and length of the information field. By sending configuration information including the second format, the location of the time-domain resource to be detected, and the location of the frequency-domain resource to be detected to the terminal device, the terminal device can detect the time-frequency adjustment information sent by the base station in the information field of the control commands according to the configuration information, and further realize synchronization adjustment of the time domain and / or frequency domain based on the time-frequency adjustment information.

[0130] In summary, according to the time-frequency synchronization adjustment method provided in this disclosure, the base station can send configuration information to the terminal device, enabling the terminal device to detect the time-frequency adjustment information sent by the base station based on the configuration information, and further realize synchronization adjustment in the time domain and / or frequency domain based on the time-frequency adjustment information. This can effectively ensure that the synchronization error in the time domain or frequency domain of the terminal is maintained within a reasonable range, improving the accuracy of time-domain or frequency-domain synchronization.

[0131] Figure 8 A flowchart illustrating a time-frequency synchronization adjustment method according to an embodiment of the present disclosure is shown. This method is executed by a base station, based on... Figure 7 The illustrated embodiment, as Figure 8 As shown, it may include the following steps.

[0132] Step 601: Send the effective time configuration information of the Global Navigation Satellite System (GNSS) information to the terminal device, and / or send the extended time configuration information of the Global Navigation Satellite System (GNSS) information to the terminal device.

[0133] Among them, the effective time configuration information is used to determine the effective time of the current GNSS information, and the extended time configuration information is used to update the effective time of the current GNSS information.

[0134] In this implementation, after the base station sends the effective time configuration information of the Global Navigation Satellite System (GNSS) information to the terminal device, and / or after the base station sends the extended time configuration information of the Global Navigation Satellite System (GNSS) information to the terminal device, the terminal device can perform time-domain synchronization and / or frequency-domain synchronization adjustments according to the time-frequency adjustment information within the effective time of the current GNSS information.

[0135] In specific application scenarios, the GNSS information activation time configuration information can carry the length of the current GNSS information's available time. Furthermore, after receiving the GNSS information activation time configuration information sent by the base station, the terminal device can determine its own GNSS information's available time based on the length information. That is, it updates the new GNSS information expiration time according to its own available time, thereby ensuring that the terminal device maintains a communication connection with the base station (without entering IDLE state) before the new GNSS information expiration time, and does not perform GNSS information measurement operations. The GNSS information extension time configuration information can include whether to extend the current GNSS information's activation time and information related to the extension duration. The extension duration-related information can include at least one of the current GNSS information extension activation time length and the extension start time point. Furthermore, after receiving the extended time configuration information for GNSS information sent by the base station, the terminal device can extend the effective time of the current GNSS information at the current GNSS information expiration time and / or the extension start time. The extension length of the effective time is this extended time length. This ensures that the terminal device maintains a communication connection with the base station (without entering IDLE state) before the new GNSS information expiration time and does not perform GNSS information measurement operations. Through this implementation, the frequency of GNSS information measurement performed by the terminal device can be reduced, thereby reducing the energy consumption of the terminal device.

[0136] In summary, the time-frequency synchronization adjustment method provided in this disclosure can send effective time configuration information of Global Navigation Satellite System (GNSS) information to the terminal device, and / or send extended time configuration information of GNSS information to the terminal device, so that the terminal device can perform time-domain synchronization and / or frequency-domain synchronization adjustments within the effective time of the current GNSS information according to the time-frequency adjustment information. This implementation method can reduce the frequency at which the terminal device performs GNSS information measurements, thereby reducing the energy consumption of the terminal device.

[0137] Figure 9 A flowchart illustrating a time-frequency synchronization adjustment method according to an embodiment of the present disclosure is shown. This method is executed by a base station, based on... Figure 7 The illustrated embodiment, as Figure 9 As shown, it may include the following steps.

[0138] Step 701: Send an application time indication of time and frequency adjustment information to the terminal device. The application time indication is used to determine the adjustment time for time and frequency synchronization.

[0139] In this embodiment of the disclosure, after the base station sends an application time indication of time-frequency adjustment information to the terminal device, the terminal device can perform time-domain synchronization and / or frequency-domain synchronization adjustments at the indicated time. For example, the base station can send an application time indication of time-frequency adjustment information to the terminal device, wherein the application time indication specifies that the time-frequency synchronization adjustment time is in a slot 10 slots after the current time-domain unit. Furthermore, after receiving the application time indication of time-frequency adjustment information, the terminal device can begin performing time-domain synchronization and / or frequency-domain synchronization adjustments in a slot 10 slots after the current time-domain unit.

[0140] In summary, according to the time-frequency synchronization adjustment method provided in this disclosure, the base station can send an application time indication of time-frequency adjustment information to the terminal device, so that the terminal device can determine the adjustment time of time-frequency synchronization according to the application time indication of the time-frequency adjustment information; and perform time-domain synchronization and / or frequency-domain synchronization adjustment on the adjustment time. In this way, the application time setting for time-domain synchronization and / or frequency-domain synchronization adjustment of the terminal device can be realized, which can meet the personalized needs of users for time-domain synchronization and / or frequency-domain synchronization adjustment.

[0141] Figure 10 This is a timing diagram of a time-frequency synchronization adjustment method according to an embodiment of the present disclosure. The method is applied to a communication system for adjusting time-frequency synchronization. The system includes: a terminal device and a base station. The base station sends configuration information to the terminal device, the configuration information being used to detect time-frequency adjustment information. The terminal device detects the time-frequency adjustment information sent by the base station according to the configuration information, the time-frequency adjustment information being adjustment information related to time-domain and / or frequency-domain synchronization. The terminal device adjusts time-domain and / or frequency-domain synchronization according to the time-frequency adjustment information.

[0142] See Figure 10 The method includes the following steps:

[0143] Step 801: The base station sends configuration information to the terminal device.

[0144] The configuration information may include information related to detecting time and frequency adjustment information transmitted by the base station. The configuration information is transmitted by the base station through higher-layer signaling or physical-layer signaling, where higher-layer signaling may include system information, Radio Resource Control (RRC) signaling, or Media Access Control (MAC) control elements (CE).

[0145] In specific application scenarios, as one possible implementation, the base station can send configuration information to the terminal device, including a first format, the location of the time-domain resource to be detected, and the location of the frequency-domain resource to be detected. This configuration information is used to detect time-frequency adjustment signaling within the uplink time interval, and the first format is the signaling format of the time-frequency adjustment signaling.

[0146] As one possible implementation, the base station can send configuration information, including a first format and the location of the frequency domain resource to be detected, to the terminal device. This configuration information is used to detect time-frequency adjustment signaling in a preset time domain unit within the uplink time interval. The first format is the signaling format of the time-frequency adjustment signaling.

[0147] As one possible implementation, the base station can send configuration information to the terminal device, including a second format, the location of the time-domain resource to be detected, and the location of the frequency-domain resource to be detected. This configuration information is used to detect control commands. The information field of the control commands carries time-frequency adjustment information, and the second format is the command format of the control commands.

[0148] Step 802: The terminal device detects the time-frequency adjustment information sent by the base station according to the configuration information. The time-frequency adjustment information is adjustment information related to time domain and / or frequency domain synchronization.

[0149] The time-frequency adjustment information refers to adjustment information related to time-domain and / or frequency-domain synchronization. This information can be an absolute adjustment value, such as a preset adjustment value, which may include a time-domain preset adjustment value and a frequency-domain preset adjustment value. Alternatively, the time-frequency adjustment information can be an adjustment value relative to a reference value. For example, the reference value could be an offset value relative to the current terminal's time-domain or frequency-domain adjustment value, equivalent to an offset adjustment value for the current time and frequency, which may include a time-domain offset adjustment value and a frequency-domain offset adjustment value. In this embodiment, the time-domain and / or frequency-domain synchronization-related adjustment information sent by the base station can be detected and obtained at a specific location based on configuration information.

[0150] In specific application scenarios, as an optional embodiment, when the configuration information includes a first format, the location of the time-domain resource to be detected, and the location of the frequency-domain resource to be detected, the terminal device can detect time-frequency adjustment signaling within the uplink time interval. This time-frequency adjustment signaling contains time-frequency adjustment information. Specifically, it can detect time-frequency adjustment signaling at a specific time-domain resource and / or a specific frequency-domain resource location within the uplink time interval, thereby obtaining the time-frequency adjustment information contained in the signaling. The time-frequency adjustment signaling can be higher-layer signaling such as Radio Resource Control (RRC) signaling, Media Access Control (MAC) control elements (CE), or physical layer signaling such as Downlink Control Information (DCI).

[0151] In specific application scenarios, as an optional embodiment, when the configuration information includes a first format and the location of the frequency domain resource to be detected, the terminal device can detect time-frequency adjustment signaling in a preset time domain unit within the uplink time interval. The time-frequency adjustment signaling contains time-frequency adjustment information. That is, the detection of time-frequency adjustment signaling can be achieved in each preset time domain unit within the uplink time interval, thereby obtaining the time-frequency adjustment information contained in the signaling carrying the time-frequency adjustment information. Since the configuration information may contain the location of the frequency domain resource to be detected, the detection of time-frequency adjustment signaling can be achieved at a specific frequency domain resource location within the preset time domain unit of the uplink time interval, thereby obtaining the frequency domain adjustment information contained in the time-frequency adjustment signaling. The time-frequency adjustment signaling can be higher-layer signaling such as RRC signaling, MAC CE, or physical-layer signaling such as DCI; the preset time domain unit can be each time domain unit (e.g., a subframe) within the uplink time interval.

[0152] In specific application scenarios, as an optional embodiment, when the configuration information includes a second format, the location of the time-domain resource to be detected, and the location of the frequency-domain resource to be detected, the terminal device can detect the time-frequency adjustment information sent by the base station in the information field of the control command. Here, the control command is an instruction for scheduling data transmission; the position and length information of the information field are predefined or determined by the configuration information sent by the receiving base station.

[0153] Step 803: The terminal device adjusts the time domain and / or frequency domain synchronization according to the time-frequency adjustment information.

[0154] In an optional embodiment of this disclosure, the steps may include: adjusting time-domain and / or frequency-domain synchronization according to a preset adjustment value or an offset adjustment value. Specifically, the current time-domain synchronization value may be adjusted to a preset time-domain adjustment value and / or the current frequency-domain synchronization value may be adjusted to a preset frequency-domain adjustment value; alternatively, the offset value of the current time-domain synchronization may be adjusted according to a time-domain offset adjustment value and / or the offset value of the current frequency-domain synchronization may be adjusted according to a frequency-domain offset adjustment value. By adjusting the synchronization values ​​of the time-domain and / or frequency-domain based on the above-described time-frequency adjustment information, the synchronization error of the terminal in the time-domain and / or frequency-domain can be effectively maintained within a reasonable range, effectively maintaining uplink time-frequency synchronization.

[0155] In specific application scenarios, for transmissions involving uplink and downlink connections, the terminal needs to maintain uplink synchronization based on Global Navigation Satellite System (GNSS) measurements and some auxiliary information. However, in the 3rd Generation Partnership Project (3GPP) R18 standard, when supporting services with long transmission times, if the GNSS information expires, the terminal needs to disconnect from the network and enter an idle state to re-execute the GNSS information measurement process. However, this method cannot keep the GNSS information active, thus failing to support continuous communication between the terminal and the network, and easily leading to certain energy consumption.

[0156] In view of this, for the embodiments of this disclosure, as an optional approach, the configuration information may further include the Global Navigation Satellite System (GNSS) information of the terminal device itself. Correspondingly, the terminal device can perform time-domain synchronization and / or frequency-domain synchronization adjustments within the effective time of the current GNSS information based on the time-frequency adjustment information. Furthermore, to ensure continuous communication between the terminal and the network side and to achieve closed-loop synchronization adjustments in the time and / or frequency domains, the terminal device can promptly obtain the available duration of the current GNSS information. When the current GNSS information becomes invalid, it can determine the effective time of the GNSS information by extending or re-measuring the available GNSS duration, thereby keeping the GNSS information in an effective state. In specific application scenarios, as an optional approach, the implementation steps may include: receiving the effective time configuration information of the Global Navigation Satellite System (GNSS) information; and / or receiving the extended time configuration information of the Global Navigation Satellite System (GNSS) information; determining the effective time of the current GNSS information based on the effective time configuration information; and / or updating the effective time of the current GNSS information based on the extended time configuration information.

[0157] In specific application scenarios, the GNSS information activation time configuration information can carry the length of the current GNSS information's available time. Furthermore, after receiving the GNSS information activation time configuration information sent by the base station, the terminal device can determine its own GNSS information's available time based on the length information. That is, it updates the new GNSS information expiration time according to its own available time, thereby ensuring that the terminal device maintains a communication connection with the base station (without entering IDLE state) before the new GNSS information expiration time, and does not perform GNSS information measurement operations. The GNSS information extension time configuration information can include whether to extend the current GNSS information's activation time and information related to the extension duration. The extension duration-related information can include at least one of the current GNSS information extension activation time length and the extension start time point. Furthermore, after receiving the extended time configuration information for GNSS information sent by the base station, the terminal device can extend the effective time of the current GNSS information at the current GNSS information expiration time and / or the extension start time. The extension length of the effective time is this extended time length. This ensures that the terminal device maintains a communication connection with the base station (without entering IDLE state) before the new GNSS information expiration time and does not perform GNSS information measurement operations. Through this implementation, the frequency of GNSS information measurement performed by the terminal device can be reduced, thereby reducing the energy consumption of the terminal device.

[0158] In an optional embodiment of this disclosure, when adjusting time-domain and / or frequency-domain synchronization based on time-frequency adjustment information, the terminal device can perform the adjustment of time-domain and / or frequency-domain synchronization at the indicated time. Accordingly, the embodiment steps may include: determining the adjustment time for time-frequency synchronization based on the application time indication of the time-frequency adjustment information; and performing the adjustment of time-domain and / or frequency-domain synchronization at the adjustment time. Correspondingly, the embodiment steps may also include: receiving the application time indication of the time-frequency adjustment information sent by the base station. For example, if the adjustment time for time-frequency synchronization is determined to be a slot 10 slots after the current time-domain unit based on the application time indication of the time-frequency adjustment information, then the terminal device can begin performing the adjustment of time-domain and / or frequency-domain synchronization at a slot 10 slots after the current time-domain unit. In this way, the application time setting for time-domain and / or frequency-domain synchronization adjustments can be realized, meeting the personalized needs of users for time-domain and / or frequency-domain synchronization adjustments.

[0159] It should be noted that the embodiments of this disclosure may use any one or more of the optional implementation steps described above to adjust the time domain and / or frequency domain synchronization. For example, the time domain and / or frequency domain synchronization may be adjusted according to a preset adjustment value or an offset adjustment value during the original effective time of the current GNSS information, or the time domain and / or frequency domain synchronization may be adjusted according to a preset adjustment value or an offset adjustment value during the extended effective time of the current GNSS information, or the time domain and / or frequency domain synchronization may be adjusted according to a preset adjustment value or an offset adjustment value during the adjustment time within the extended effective time of the current GNSS information, etc., and no specific limitation is made here.

[0160] By applying the time-frequency synchronization adjustment method provided in this embodiment, the adjustment information related to time-domain and / or frequency-domain synchronization sent by the base station can be detected based on the configuration information sent by the base station, and the time-domain and / or frequency-domain synchronization can be adjusted according to the adjustment information related to time-domain and / or frequency-domain synchronization. This can effectively ensure that the synchronization error of the terminal in the time domain or frequency domain is maintained within a reasonable range, improving the accuracy of time-domain or frequency-domain synchronization. At the same time, it can also reduce the frequency of GNSS information measurement performed by the terminal equipment, reduce the energy consumption of the terminal equipment, and meet the personalized needs of users for time-domain and / or frequency-domain synchronization adjustment.

[0161] In the embodiments provided above, the methods provided by the embodiments of this application have been described from the perspectives of terminal devices and base stations, respectively. To implement the functions of the methods provided in the embodiments of this application, the terminal device and base station may include hardware structures and software modules, and may implement the above functions in the form of hardware structures, software modules, or a combination of hardware structures and software modules. One of the above functions may be executed in the form of hardware structures, software modules, or a combination of hardware structures and software modules.

[0162] Corresponding to the time-frequency synchronization adjustment methods provided in the above embodiments, this disclosure also provides a time-frequency synchronization adjustment device. Since the time-frequency synchronization adjustment device provided in this disclosure corresponds to the time-frequency synchronization adjustment methods provided in the above embodiments, the implementation methods of the time-frequency synchronization adjustment methods are also applicable to the time-frequency synchronization adjustment device provided in this embodiment, and will not be described in detail in this embodiment.

[0163] Figure 11 This is a schematic diagram of a time-frequency synchronization adjustment device 800 provided according to an embodiment of the present disclosure. The time-frequency synchronization adjustment device 800 may be a terminal device.

[0164] like Figure 11 As shown, the device 800 may include:

[0165] The receiving module 810 can be used to receive configuration information sent by the base station;

[0166] Processing module 820 can be used to detect time-frequency adjustment information sent by the base station according to configuration information. The time-frequency adjustment information is adjustment information related to time-domain and / or frequency-domain synchronization.

[0167] The processing module 820 can also be used to adjust time domain and / or frequency domain synchronization based on time-frequency adjustment information.

[0168] In some embodiments of this disclosure, the processing module 820 can be used to detect time-frequency adjustment signaling within an uplink time interval according to configuration information. The time-frequency adjustment signaling includes time-frequency adjustment information, and the configuration information includes a first format, the location of the time-domain resource to be detected, and the location of the frequency-domain resource to be detected. The first format is the signaling format of the time-frequency adjustment signaling.

[0169] In some embodiments of this disclosure, the receiving module 810 can be used to detect time-frequency adjustment signaling on a preset time domain unit within an uplink time interval according to configuration information. The time-frequency adjustment signaling includes time-frequency adjustment information, and the configuration information includes a first format and the location of the frequency domain resource to be detected. The first format is the signaling format of the time-frequency adjustment signaling.

[0170] In some embodiments of this disclosure, the processing module 820 can also be used to determine the uplink time interval configured by the base station.

[0171] In some embodiments of this disclosure, the processing module 820 detects control commands based on configuration information. The information field of the control commands carries time-frequency adjustment information. The configuration information includes a second format, the location of the time-domain resource to be detected, and the location of the frequency-domain resource to be detected. The second format is the command format of the control commands. Based on the location information of the information field, the time-frequency adjustment information is detected on the control commands.

[0172] In some embodiments of this disclosure, the processing module 820 may also be used to determine the location information of a predefined information field; or, the receiving module 810 may also be used to receive the location configuration of the information field sent by the base station, wherein the location configuration is used to configure the location information of the information field; wherein the location information of the information field includes at least one of the location and length of the information field.

[0173] In some embodiments of this disclosure, the time-frequency adjustment information includes a preset adjustment value or an offset adjustment value of the current time-frequency. The processing module 820 can be used to adjust the time domain and / or frequency domain synchronization according to the preset adjustment value or the offset adjustment value.

[0174] In some embodiments of this disclosure, the receiving module 810 may also be used to receive effective time configuration information of Global Navigation Satellite System (GNSS) information; and / or, to receive extended time configuration information of Global Navigation Satellite System (GNSS) information.

[0175] In some embodiments of this disclosure, the processing module 820 may also be used to determine the effective time of the current GNSS information based on the effective time configuration information; and / or to update the effective time of the current GNSS information based on the extended time configuration information.

[0176] In some embodiments of this disclosure, the processing module 820 can be used to perform time-domain synchronization and / or frequency-domain synchronization adjustments within the effective time of the current GNSS information based on time-frequency adjustment information.

[0177] In some embodiments of this disclosure, the processing module 820 can also be used to determine the adjustment time for time-frequency synchronization based on the application time indication of the time-frequency adjustment information; and perform time-domain synchronization and / or frequency-domain synchronization adjustment on the adjustment time.

[0178] In some embodiments of this disclosure, the receiving module 810 can also be used to receive an application time indication of time-frequency adjustment information sent by the base station.

[0179] Figure 12 This is a schematic diagram of a time-frequency synchronization adjustment device 900 provided according to an embodiment of the present disclosure. The time-frequency synchronization adjustment device 900 may be a base station.

[0180] like Figure 12 As shown, the device 900 may include:

[0181] The sending module 910 can be used to send configuration information to the terminal device. The configuration information is used to detect time and frequency adjustment information.

[0182] In some embodiments of this disclosure, the sending module 910 can be used to send configuration information to the terminal device, including a first format, the location of the time-domain resource to be detected, and the location of the frequency-domain resource to be detected. The configuration information is used to detect time-frequency adjustment signaling within the uplink time interval, and the first format is the signaling format of the time-frequency adjustment signaling.

[0183] In some embodiments of this disclosure, the sending module 910 can be used to send configuration information including a first format and the location of the frequency domain resource to be detected to the terminal device. The configuration information is used to detect time-frequency adjustment signaling on a preset time domain unit within an uplink time interval. The first format is the signaling format of the time-frequency adjustment signaling.

[0184] In some embodiments of this disclosure, the sending module 910 can be used to send configuration information to the terminal device, including a second format, the location of the time-domain resource to be tested, and the location of the frequency-domain resource to be tested. The configuration information is used to detect control commands. The information field of the control commands carries time-frequency adjustment information, and the second format is the command format of the control commands.

[0185] In some embodiments of this disclosure, the sending module 910 can be used to send an uplink time interval to a terminal device.

[0186] In some embodiments of this disclosure, the sending module 910 can be used to send the location configuration of the information field to the terminal device. The location configuration is used to configure the location information of the information field. The location information of the information field includes at least one of the location and length of the information field.

[0187] In some embodiments of this disclosure, the sending module 910 can be used to send effective time configuration information of Global Navigation Satellite System (GNSS) information to the terminal device, the effective time configuration information being used to determine the effective time of the current GNSS information; and / or, to send extended time configuration information of Global Navigation Satellite System (GNSS) information to the terminal device, the extended time configuration information being used to update the effective time of the current GNSS information.

[0188] In some embodiments of this disclosure, the sending module 910 can be used to send an application time indication of time-frequency adjustment information to a terminal device. The application time indication is used to determine the adjustment time for time-frequency synchronization.

[0189] Please see Figure 13 , Figure 13 This is a schematic diagram of the structure of a communication device 1000 provided in an embodiment of this application. The communication device 1000 can be a network device, a user device, a chip, chip system, or processor that supports the network device in implementing the above methods, or a chip, chip system, or processor that supports the user device in implementing the above methods. This device can be used to implement the methods described in the above method embodiments, and for details, please refer to the description in the above method embodiments.

[0190] The communication device 1000 may include one or more processors 1001. The processor 1001 may be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control the communication device (e.g., base station, baseband chip, terminal equipment, terminal equipment chip, DU or CU, etc.), execute computer programs, and process data from the computer programs.

[0191] Optionally, the communication device 1000 may further include one or more memories 1002, which may store a computer program 1004. The processor 1001 executes the computer program 1004 to cause the communication device 1000 to perform the methods described in the above method embodiments. Optionally, the memory 1002 may also store data. The communication device 1000 and the memory 1002 may be provided separately or integrated together.

[0192] Optionally, the communication device 1000 may further include a transceiver 1005 and an antenna 1006. The transceiver 1005 may be referred to as a transceiver unit, transceiver, or transceiver circuit, etc., and is used to implement the transmission and reception functions. The transceiver 1005 may include a receiver and a transmitter. The receiver may be referred to as a receiver or receiving circuit, etc., and is used to implement the receiving function; the transmitter may be referred to as a transmitter or transmitting circuit, etc., and is used to implement the transmitting function.

[0193] Optionally, the communication device 1000 may further include one or more interface circuits 1007. The interface circuit 1007 is used to receive code instructions and transmit them to the processor 1001. The processor 1001 executes the code instructions to cause the communication device 1000 to perform the method described in the above method embodiments.

[0194] In one implementation, the processor 1001 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing receiving and transmitting functions may be separate or integrated. The aforementioned transceiver circuit, interface, or interface circuit can be used for reading and writing code / data, or it can be used for transmitting or relaying signals.

[0195] In one implementation, processor 1001 may store computer program 1003, which runs on processor 1001 and causes communication device 1000 to execute the methods described in the above method embodiments. Computer program 1003 may be embedded in processor 1001, in which case processor 1001 may be implemented in hardware.

[0196] In one implementation, the communication device 1000 may include a circuit capable of performing the functions of transmitting, receiving, or communicating as described in the aforementioned method embodiments. The processor and transceiver described in this application can be implemented on integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed-signal ICs, application-specific integrated circuits (ASICs), printed circuit boards (PCBs), electronic devices, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductors (CMOS), n-metal-oxide-semiconductor (NMOS), positive-channel metal oxide semiconductors (PMOS), bipolar junction transistors (BJTs), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0197] The communication device described in the above embodiments may be a network device or a user equipment, but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device may vary. Figure 13 The communication device can be a standalone device or part of a larger device. For example, the communication device could be:

[0198] (1) Independent integrated circuit IC, or chip, or chip system or subsystem;

[0199] (2) A collection of one or more ICs, optionally including storage components for storing data and computer programs;

[0200] (3) ASIC, such as modem;

[0201] (4) Modules that can be embedded in other devices;

[0202] (5) Receivers, terminal equipment, smart terminal equipment, cellular phones, wireless equipment, handheld devices, mobile units, vehicle-mounted equipment, network equipment, cloud equipment, artificial intelligence equipment, etc.

[0203] (6) Others, etc.

[0204] For cases where the communication device can be a chip or a chip system, please refer to [link / reference]. Figure 14 The diagram shows the structure of the chip. Figure 14 The chip shown includes a processor 1101 and an interface 1102. There can be one or more processors 1101, and multiple interfaces 1102.

[0205] Optionally, the chip also includes a memory 1103 for storing necessary computer programs and data.

[0206] Those skilled in the art will also understand that the various illustrative logical blocks and steps listed in the embodiments of this application can be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented through hardware or software depends on the specific application and the overall system design requirements. Those skilled in the art can implement the functionality using various methods for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of this application.

[0207] This application also provides a readable storage medium having instructions stored thereon that, when executed by a computer, implement the functions of any of the above method embodiments.

[0208] This application also provides a computer program product that, when executed by a computer, implements the functions of any of the above method embodiments.

[0209] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented, in whole or in part, as a computer program product. A computer program product includes one or more computer programs. When a computer program is loaded and executed on a computer, it generates, in whole or in part, the processes or functions according to the embodiments of this application. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, a computer program can be transferred from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVDs)), or semiconductor media (e.g., solid-state disks (SSDs)).

[0210] Those skilled in the art will understand that the various numerical designations such as "first," "second," etc., involved in this application are merely for the convenience of description and are not intended to limit the scope of the embodiments of this application, nor do they indicate the order of sequence.

[0211] At least one in this application can also be described as one or more, and multiple can be two, three, four or more, and this application does not impose any limitation. In the embodiments of this application, for a technical feature, the technical features in that technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", and there is no order or size among the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0212] As used herein, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, device, and / or apparatus (e.g., disk, optical disk, memory, programmable logic device (PLD)) used to provide machine instructions and / or data to a programmable processor, including machine-readable media that receive machine instructions as machine-readable signals. The term "machine-readable signal" refers to any signal used to provide machine instructions and / or data to a programmable processor.

[0213] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as a data server), or computing systems that include middleware components (e.g., an application server), or computing systems that include frontend components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with embodiments of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., a communication network). Examples of communication networks include local area networks (LANs), wide area networks (WANs), and the Internet.

[0214] Computer systems can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. Client-server relationships are created by computer programs running on the respective computers and having a client-server relationship with each other.

[0215] It should be understood that the various forms of processes shown above can be used to rearrange, add, or delete steps. For example, the steps described in this disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this disclosure can be achieved, and this is not limited herein.

[0216] Furthermore, it should be understood that the various embodiments of this application can be implemented individually or in combination with other embodiments, where the scheme allows.

[0217] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0218] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0219] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for adjusting time-frequency synchronization, characterized in that, The method is executed by a terminal device, and the method includes: Receive configuration information sent by the base station; The time-frequency adjustment information sent by the base station is detected according to the configuration information, and the time-frequency adjustment information is adjustment information related to time domain and / or frequency domain synchronization; Adjust time-domain and / or frequency-domain synchronization according to the time-frequency adjustment information; Receive the effective time configuration information of Global Navigation Satellite System (GNSS) information, and determine the effective time of the current GNSS information based on the effective time configuration information; and / or, Receive extended time configuration information for Global Navigation Satellite System (GNSS) information, and update the effective time of the current GNSS information according to the extended time configuration information; The step of adjusting time-domain and / or frequency-domain synchronization according to the time-frequency adjustment information includes: performing time-domain synchronization and / or frequency-domain synchronization adjustment within the effective time of the current GNSS information according to the time-frequency adjustment information.

2. The method according to claim 1, characterized in that, The step of detecting the time-frequency adjustment information sent by the base station according to the configuration information includes: According to the configuration information, time-frequency adjustment signaling is detected within the uplink time interval. The time-frequency adjustment signaling contains time-frequency adjustment information. The configuration information includes a first format, the location of the time domain resource to be detected, and the location of the frequency domain resource to be detected. The first format is the signaling format of the time-frequency adjustment signaling.

3. The method according to claim 1, characterized in that, The step of detecting the time-frequency adjustment information sent by the base station according to the configuration information includes: According to the configuration information, time-frequency adjustment signaling is detected on a preset time domain unit within the uplink time interval. The time-frequency adjustment signaling contains time-frequency adjustment information. The configuration information includes a first format and the location of the frequency domain resource to be detected. The first format is the signaling format of the time-frequency adjustment signaling.

4. The method according to claim 2 or 3, characterized in that, The method further includes: Determine the uplink time interval configured for the base station.

5. The method according to claim 1, characterized in that, The step of detecting the time-frequency adjustment information sent by the base station according to the configuration information includes: According to the configuration information, a detection control command is generated. The information field of the control command carries time and frequency adjustment information. The configuration information includes a second format, the location of the time domain resource to be detected, and the location of the frequency domain resource to be detected. The second format is the command format of the control command. Based on the location information of the information domain, time-frequency adjustment information is detected in the control command.

6. The method according to claim 5, characterized in that, The method further includes: Determine the location information of the predefined information domain; or, The location configuration of the information field sent by the base station is used to configure the location information of the information field; The location information of the information field includes at least one of the location and length of the information field.

7. The method according to claim 1, characterized in that, The time-frequency adjustment information includes a preset adjustment value or a current time-frequency offset adjustment value. The step of adjusting time-domain and / or frequency-domain synchronization based on the time-frequency adjustment information includes: Adjust the time domain and / or frequency domain synchronization according to the preset adjustment value or the offset adjustment value.

8. The method according to claim 1, characterized in that, The method further includes: Based on the application time indication of the time-frequency adjustment information, the adjustment time for time-frequency synchronization is determined; Adjustments for time-domain synchronization and / or frequency-domain synchronization are performed at the adjustment time.

9. The method according to claim 8, characterized in that, The method further includes: The application time indication of the time-frequency adjustment information sent by the base station.

10. A method for adjusting time-frequency synchronization, characterized in that, The method is executed by a base station, and the method includes: Send configuration information to the terminal device, the configuration information being used to detect time-frequency adjustment information; Send Global Navigation Satellite System (GNSS) information activation time configuration information to the terminal device, wherein the activation time configuration information is used to determine the current activation time of the GNSS information; and / or, Send extended time configuration information of Global Navigation Satellite System (GNSS) information to the terminal device, wherein the extended time configuration information is used to update the effective time of the current GNSS information; The current GNSS information is used for adjustments to perform time-domain synchronization and / or frequency-domain synchronization within its effective time period.

11. The method according to claim 10, characterized in that, Sending configuration information to the terminal device includes: The terminal device is sent configuration information including a first format, the location of the time-domain resource to be inspected, and the location of the frequency-domain resource to be inspected. The configuration information is used to detect time-frequency adjustment signaling within the uplink time interval. The first format is the signaling format of the time-frequency adjustment signaling.

12. The method according to claim 10, characterized in that, Sending configuration information to the terminal device includes: The terminal device is sent configuration information including a first format and the location of the frequency domain resource to be detected. The configuration information is used to detect time-frequency adjustment signaling on a preset time domain unit within the uplink time interval. The first format is the signaling format of the time-frequency adjustment signaling.

13. The method according to claim 10, characterized in that, Sending configuration information to the terminal device includes: The terminal device is sent configuration information including a second format, the location of the time-domain resource to be tested, and the location of the frequency-domain resource to be tested. The configuration information is used to detect control commands. The information field of the control commands carries time-frequency adjustment information. The second format is the command format of the control commands.

14. The method according to claim 11 or 12, characterized in that, The method further includes: Send the uplink time interval to the terminal device.

15. The method according to claim 13, characterized in that, The method further includes: Send the location configuration of the information field to the terminal device, wherein the location configuration is used to configure the location information of the information field; The location information of the information field includes at least one of the location and length of the information field.

16. The method according to claim 10, characterized in that, The method further includes: An application time indication is sent to the terminal device to indicate the time and frequency adjustment information. The application time indication is used to determine the adjustment time for time and frequency synchronization.

17. A terminal device, characterized in that, The terminal device includes: The receiving module is used to receive configuration information sent by the base station; The processing module is used to detect the time-frequency adjustment information sent by the base station according to the configuration information, wherein the time-frequency adjustment information is time-domain and / or frequency-domain synchronization-related adjustment information; The processing module is also used to adjust the time domain and / or frequency domain synchronization according to the time-frequency adjustment information; The receiving module is used to receive the effective time configuration information of Global Navigation Satellite System (GNSS) information, and the processing module is used to determine the effective time of the current GNSS information according to the effective time configuration information; and / or, The receiving module is used to receive extended time configuration information of Global Navigation Satellite System (GNSS) information, and the processing module is used to update the effective time of the current GNSS information according to the extended time configuration information. The step of adjusting time-domain and / or frequency-domain synchronization according to the time-frequency adjustment information includes: performing time-domain synchronization and / or frequency-domain synchronization adjustment within the effective time of the current GNSS information according to the time-frequency adjustment information.

18. A base station, characterized in that, The base station includes: The sending module is used to send configuration information to the terminal device, the configuration information being used to detect time-frequency adjustment information; The sending module is used to send effective time configuration information of Global Navigation Satellite System (GNSS) information to the terminal device, the effective time configuration information being used to determine the effective time of the current GNSS information; and / or, to send extended time configuration information of Global Navigation Satellite System (GNSS) information to the terminal device, the extended time configuration information being used to update the effective time of the current GNSS information; the effective time of the current GNSS information is used to perform adjustments for time domain synchronization and / or frequency domain synchronization.

19. A communication device, wherein, include: transceiver; Memory; The processor is connected to the transceiver and the memory respectively, and is configured to control the wireless signal transmission and reception of the transceiver by executing computer-executable instructions on the memory, and is capable of implementing the method of any one of claims 1-16.

20. A computer storage medium, wherein, The computer storage medium stores computer-executable instructions; when executed by a processor, the computer-executable instructions can implement the method of any one of claims 1-16.

21. A communication system, comprising a terminal and a base station, wherein, The terminal device is used to perform the method as described in any one of claims 1-9. The base station is used to perform the method as described in any one of claims 10-16.

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