Synchronization signal sending method and apparatus, network device, terminal device, and medium

Abstract

The present disclosure relates to a synchronization signal sending method and apparatus, a network device, a terminal device, and a medium. In at least one embodiment of the present disclosure, enhancing a measurement configuration enables a terminal device to measure an on-demand synchronization reference signal and / or a sparse synchronization reference signal on the basis of the measurement configuration. This resolves the problem where current measurement configurations are not suitable for on-demand synchronization reference signal and / or sparse synchronization reference signal measurement. In addition, since the sparse periodic synchronization reference signal supports neighboring cell measurement, functionality of the synchronization reference signal is unaffected. Therefore, this allows for a network device to send an on-demand synchronization reference signal and periodically send a sparse synchronization reference signal. After a cell enters an energy-saving state, the network device sends a synchronization reference signal of the energy-saving cell only when needed, or periodically sends a sparse synchronization reference signal of the energy-saving cell, which reduces network device power consumption without affecting functionality of the synchronization reference signal, and thereby saving energy.

Description

Methods, devices, network equipment, terminal equipment, and media for transmitting synchronization signals

[0001] Cross-reference to related applications

[0002] This disclosure claims priority to Chinese Patent Application No. 202510124798.9, filed on January 26, 2025, entitled “Method, Apparatus, Network Equipment, Terminal Equipment and Medium for Transmitting Synchronization Signals”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of communication technology, specifically to a method, apparatus, network device, terminal device, and medium for transmitting synchronization signals. Background Technology

[0004] In time-domain energy-saving technology, common signal adaptive technology reduces the power consumption of network devices by reducing the transmission of common signals, including Synchronization Signal Block (SSB), System Information Block Type 1 (SIB1), paging, and random access signals.

[0005] For example, when the cell load is low, the energy consumption of common signal transmission (such as the energy consumption of the base station sending synchronization reference signals or sending SIB1) is relatively high. In order to reduce the energy consumption of common signals, the base station can decide to enable the on-demand transmission of synchronization reference signals for the cell, and only send synchronization reference signals when using the cell for data transmission, and not send them at other times.

[0006] Synchronization reference signals are typically used by user equipment (UE) for cell search, cell timing synchronization, Layer 1 or Layer 3 (L1 / L3) beam measurement, and beam selection. Currently, synchronization reference signals are transmitted periodically. If synchronization reference signals were transmitted only on demand, such as when data transmission occurs, other functions (e.g., L1 / L3 beam measurement and beam selection) besides cell timing synchronization might be affected.

[0007] It is evident that periodically transmitting synchronization reference signals currently consumes a lot of energy, while transmitting synchronization reference signals on demand will affect functionality (e.g., L1 / L3 beam measurement and beam selection), and the current measurement configuration is not suitable for on-demand synchronization reference signal measurement. Therefore, not every cell's base station can transmit synchronization reference signals on demand. Summary of the Invention

[0008] At least one embodiment of this disclosure provides a method, apparatus, network device, terminal device, and medium for transmitting synchronization signals. By enhancing measurement configuration, it supports on-demand transmission of synchronization reference signals and periodic transmission of sparse synchronization reference signals. This reduces the power consumption of network devices to achieve energy saving without affecting the functionality of the synchronization reference signals.

[0009] In a first aspect, embodiments of this disclosure provide a method for transmitting a synchronization signal, applied to a network device, the method comprising:

[0010] Send the first synchronization reference signal of the energy-saving cell to the terminal equipment as needed and / or periodically send the second synchronization reference signal of the energy-saving cell;

[0011] Send measurement configuration to the terminal device; wherein the measurement configuration includes at least one of the following:

[0012] One or more sets of parameters for the first measurement time window, one or more sets of parameters for the second measurement time window, and one set of parameters for the third measurement time window;

[0013] The first measurement time window is used for measuring the energy-saving cell when the first synchronization reference signal is activated; the second measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is changed; and the third measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is not changed or when the first synchronization reference signal is activated.

[0014] In some embodiments, sending a first synchronization reference signal for an energy-saving cell to a terminal device on demand and / or periodically sending a second synchronization reference signal for an energy-saving cell includes any one of the following:

[0015] Send the first synchronization reference signal of the energy-saving community to the terminal equipment as needed;

[0016] Send the first synchronization reference signal of the energy-saving cell to the terminal equipment on demand and send the second synchronization reference signal of the energy-saving cell periodically;

[0017] The system sends the first synchronization reference signal of the energy-saving cell to the terminal equipment on demand, sends the second synchronization reference signal of the energy-saving cell periodically, and sends the system information of the energy-saving cell periodically.

[0018] In some embodiments, before sending the first synchronization reference signal of the energy-saving cell to the terminal device on demand and / or periodically sending the second synchronization reference signal of the energy-saving cell, the method further includes:

[0019] The centralized unit of the network device sends energy-saving instruction information to the distributed unit of the network device. The energy-saving instruction information is used to instruct the distributed unit of the network device to send the first synchronization reference signal of the energy-saving cell as needed.

[0020] The distribution unit of the network equipment identifies energy-saving zones based on energy-saving indication information.

[0021] In some embodiments, the energy-saving indication information is also used to indicate at least one of the following:

[0022] The distribution unit of the network device is instructed to periodically send the second synchronization reference signal for the energy-saving cell;

[0023] The distribution unit of the network device is instructed to periodically send system information about the energy-saving community.

[0024] In some embodiments, when the energy-saving indication information instructs the distribution unit of the network device to periodically send the second synchronization reference signal of the energy-saving cell, the energy-saving indication information is also used to indicate that the second synchronization reference signal is located in the synchronization grid.

[0025] In some embodiments, the measurement configuration includes at least one of the following:

[0026] One or more sets of parameters of the first synchronization reference signal;

[0027] One or more sets of parameters for the second synchronization reference signal;

[0028] Each set of parameters of the first synchronization reference signal includes at least one of the following: transmission period, transmission frequency, beam, downlink transmission power, and time position;

[0029] Each set of parameters for the second synchronization reference signal includes the transmission period.

[0030] In some embodiments, each set of parameters of the first synchronization reference signal further includes a configuration identifier of the first synchronization reference signal; each set of parameters of the second synchronization reference signal further includes a configuration identifier of the second synchronization reference signal.

[0031] In some embodiments, when the measurement configuration includes multiple sets of parameters for multiple first measurement time windows, a set of parameters for the first measurement time window corresponds to a set of parameters for the first synchronization reference signal.

[0032] In the case where the measurement configuration includes multiple sets of parameters for multiple second measurement time windows, one set of parameters for the second measurement time window corresponds to one set of parameters for the second synchronization reference signal.

[0033] In some embodiments, the method further includes:

[0034] Send a second synchronization reference signal adjustment signaling to the terminal device. The second synchronization reference signal adjustment signaling includes the configuration identifier of the second synchronization reference signal.

[0035] In some embodiments, the method further includes:

[0036] Send a first synchronization reference signal activation signaling to the terminal device. The first synchronization reference signal activation signaling includes the configuration identifier of the first synchronization reference signal.

[0037] In some embodiments, the method further includes:

[0038] Send the first synchronization reference signal to the terminal device to activate the signaling.

[0039] In some embodiments, the frequency of the first synchronization reference signal is the same as the frequency of the second synchronization reference signal;

[0040] The first measurement time window is configured with the second measurement time window or the third measurement time window through the same measurement configuration; wherein, the measurement configuration includes:

[0041] The frequencies of the first and second synchronization reference signals, the parameters of the first measurement time window, and at least one of the following: the parameters of the second measurement time window and the parameters of the third measurement time window.

[0042] In some embodiments, the frequency of the first synchronization reference signal is different from or the same as the frequency of the second synchronization reference signal;

[0043] The first measurement time window is configured through the first measurement configuration, and the second measurement time window and / or the third measurement time window are configured through the second measurement configuration;

[0044] The first measurement configuration includes the frequency of the first synchronization reference signal and the parameters of the first measurement time window; the second measurement configuration includes the frequency of the second synchronization reference signal and at least one of the following: the parameters of the second measurement time window and the parameters of the third measurement time window.

[0045] In some embodiments, the first synchronization reference signal includes a first synchronization signal block SSB, and the second synchronization reference signal includes a second SSB.

[0046] The measurement configuration includes at least one of the following:

[0047] The first synchronous broadcast block measures the parameters of the timing configuration SMTC, the parameters of the second SMTC, and the parameters of the third SMTC;

[0048] The first SMTC is used to measure energy-saving cells when the first SSB is activated; the second SMTC is used to measure energy-saving cells when the transmission period of the second SSB is changed; and the third SMTC is used to measure energy-saving cells when the transmission period of the second SSB is not changed or when the first SSB is activated.

[0049] In some embodiments, the frequency of the first SSB is the same as the frequency of the second SSB;

[0050] The first SMTC is configured with the second SMTC or the third SMTC through the same measurement configuration; wherein, the measurement configuration includes:

[0051] The frequencies of the first SSB and the second SSB, the parameters of the first SMTC, and at least one of the following: the parameters of the second SMTC, and the parameters of the third SMTC.

[0052] In some embodiments, the frequency of the first SSB is different from or the same as the frequency of the second SSB;

[0053] The first SMTC is configured through a first measurement configuration, and the second SMTC and / or the third SMTC is configured through a second measurement configuration;

[0054] The first measurement configuration includes the frequency of the first SSB and the parameters of the first SMTC; the second measurement configuration includes the frequency of the second SSB and at least one of the following: the parameters of the second SMTC and the parameters of the third SMTC.

[0055] Secondly, embodiments of this disclosure also propose a method for receiving a synchronization signal, applied to a terminal device, the method comprising:

[0056] Receive measurement configuration sent by the network device, the measurement configuration including at least one of the following:

[0057] One or more sets of parameters for the first measurement time window, one or more sets of parameters for the second measurement time window, and one set of parameters for the third measurement time window;

[0058] The first measurement time window is used for measuring the energy-saving cell when the first synchronization reference signal is activated; the second measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is changed; and the third measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is not changed or when the first synchronization reference signal is activated.

[0059] Receive the first synchronization reference signal of the energy-saving cell sent on demand by the network device and / or the second synchronization reference signal of the energy-saving cell sent periodically.

[0060] In some embodiments, the method further includes:

[0061] The energy-saving community is measured based on the measurement configuration and at least one of the following: a first synchronization reference signal and a second synchronization reference signal.

[0062] In some embodiments, the method further includes:

[0063] The network device receives a second synchronization reference signal adjustment signaling message, which includes a configuration identifier for the second synchronization reference signal.

[0064] In some embodiments, the energy-saving cell is measured based on a measurement configuration and at least one of the following: a first synchronization reference signal and a second synchronization reference signal, including:

[0065] The second synchronization reference signal of the energy-saving community is measured based on the second measurement time window.

[0066] In some embodiments, the second synchronization reference signal of the energy-saving cell is measured based on a second measurement time window, including:

[0067] The second synchronization reference signal of the energy-saving community is measured based on a set of parameters corresponding to the second measurement time window of the configuration identifier.

[0068] In some embodiments, the method further includes:

[0069] Measurements of the energy-saving cell are stopped when the period of the second synchronization reference signal corresponding to the configuration identifier is infinite, or when an indication is received from the network device to stop sending the second synchronization reference signal.

[0070] In some embodiments, the method further includes:

[0071] The network device receives a first synchronization reference signal activation signaling message, which includes a configuration identifier for the first synchronization reference signal.

[0072] In some embodiments, the energy-saving cell is measured based on a measurement configuration and at least one of the following: a first synchronization reference signal and a second synchronization reference signal, including:

[0073] The first synchronization reference signal of the energy-saving community is measured based on the first measurement time window or the third measurement time window.

[0074] In some embodiments, the first synchronization reference signal of the energy-saving cell is measured based on a first measurement time window or a third measurement time window, including:

[0075] The first synchronization reference signal of the energy-saving community is measured based on a set of parameters corresponding to the first measurement time window of the configuration identifier.

[0076] In some embodiments, the first synchronization reference signal of the energy-saving cell is measured based on a first measurement time window or a third measurement time window, including:

[0077] When the measurement configuration includes one or more sets of parameters for a first measurement time window, the first synchronization reference signal of the energy-saving cell is measured based on the first measurement time window;

[0078] If the measurement configuration does not include one or more sets of parameters for the first measurement time window, the first synchronization reference signal of the energy-saving cell is measured based on the third measurement time window.

[0079] In some embodiments, the method further includes:

[0080] Upon receiving a deactivation instruction for the first synchronization reference signal sent by the network device, the measurement of the first synchronization reference signal of the energy-saving community based on the first measurement time window or the third measurement time window is stopped.

[0081] In some embodiments, the first synchronization reference signal includes a first SSB, and the second synchronization reference signal includes a second SSB;

[0082] The measurement configuration includes at least one of the following:

[0083] Parameters of the first SMTC, parameters of the second SMTC, and parameters of the third SMTC;

[0084] The first SMTC is used to measure energy-saving cells when the first SSB is activated; the second SMTC is used to measure energy-saving cells when the transmission period of the second SSB is changed; and the third SMTC is used to measure energy-saving cells when the transmission period of the second SSB is not changed or when the first SSB is activated.

[0085] In some embodiments, the method further includes:

[0086] Upon receiving the second synchronization reference signal adjustment signaling, stop measuring the energy-saving cell or measure the energy-saving cell based on the second SMTC;

[0087] Upon receiving the activation signaling of the first synchronization reference signal, the energy-saving cell is measured based on the first SMTC or the third SMTC.

[0088] In some embodiments, the method further includes:

[0089] Upon receiving the first synchronization reference signal deactivation signaling, stop measuring the energy-saving cell based on the first SMTC or the third SMTC.

[0090] Thirdly, embodiments of this disclosure also provide a synchronization signal transmitting device, applied to a network device, the device comprising:

[0091] The first transmitting unit is used to transmit the first synchronization reference signal of the energy-saving cell to the terminal device on demand and / or periodically transmit the second synchronization reference signal of the energy-saving cell;

[0092] The second transmitting unit is used to transmit measurement configuration to the terminal device; wherein the measurement configuration includes at least one of the following:

[0093] One or more sets of parameters for the first measurement time window, one or more sets of parameters for the second measurement time window, and one set of parameters for the third measurement time window;

[0094] The first measurement time window is used for measuring the energy-saving cell when the first synchronization reference signal is activated; the second measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is changed; and the third measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is not changed or when the first synchronization reference signal is activated.

[0095] Fourthly, embodiments of this disclosure also provide a synchronization signal receiving device for use in a terminal device, the device comprising:

[0096] The first receiving unit is configured to receive measurement configurations sent by the network device, wherein the measurement configurations include at least one of the following:

[0097] One or more sets of parameters for the first measurement time window, one or more sets of parameters for the second measurement time window, and one set of parameters for the third measurement time window;

[0098] The first measurement time window is used for measuring the energy-saving cell when the first synchronization reference signal is activated; the second measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is changed; and the third measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is not changed or when the first synchronization reference signal is activated.

[0099] The second receiving unit is used to receive the first synchronization reference signal of the energy-saving cell sent on demand by the network device and / or the second synchronization reference signal of the energy-saving cell sent periodically.

[0100] Fifthly, embodiments of this disclosure also provide a network device, wherein the network device includes a memory, a transceiver, and a processor;

[0101] Memory is used to store computer programs; transceiver is used to send and receive data under the control of the processor; processor is used to read the computer program from memory and execute it.

[0102] Send the first synchronization reference signal of the energy-saving cell to the terminal equipment as needed and / or periodically send the second synchronization reference signal of the energy-saving cell;

[0103] Send measurement configuration to the terminal device; wherein the measurement configuration includes at least one of the following:

[0104] One or more sets of parameters for the first measurement time window, one or more sets of parameters for the second measurement time window, and one set of parameters for the third measurement time window;

[0105] The first measurement time window is used for measuring the energy-saving cell when the first synchronization reference signal is activated; the second measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is changed; and the third measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is not changed or when the first synchronization reference signal is activated.

[0106] Sixthly, embodiments of this disclosure also provide a terminal device, wherein the terminal device includes a memory, a transceiver, and a processor;

[0107] Memory is used to store computer programs; transceiver is used to send and receive data under the control of the processor; processor is used to read the computer program from memory and execute it.

[0108] Receive measurement configuration sent by the network device, the measurement configuration including at least one of the following:

[0109] One or more sets of parameters for the first measurement time window, one or more sets of parameters for the second measurement time window, and one set of parameters for the third measurement time window;

[0110] The first measurement time window is used for measuring the energy-saving cell when the first synchronization reference signal is activated; the second measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is changed; and the third measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is not changed or when the first synchronization reference signal is activated.

[0111] Receive the first synchronization reference signal of the energy-saving cell sent on demand by the network device and / or the second synchronization reference signal of the energy-saving cell sent periodically.

[0112] In a seventh aspect, embodiments of this disclosure also provide a processor-readable storage medium, wherein the processor-readable storage medium stores a program for causing the processor to perform a method for transmitting a synchronization signal as described in any embodiment of the first aspect or a method for receiving a synchronization signal as described in any embodiment of the second aspect.

[0113] In at least one embodiment of this disclosure, by enhancing the measurement configuration, the terminal device can measure on-demand synchronization reference signals (i.e., the first synchronization reference signal) and / or sparse synchronization reference signals (i.e., the second synchronization reference signal with a changed transmission period) based on the measurement configuration. This solves the problem that current measurement configurations are not suitable for measuring on-demand synchronization reference signals and / or sparse synchronization reference signals. Furthermore, since sparse periodic synchronization reference signals can support neighbor cell measurements, the synchronization reference signal functionality (e.g., L1 / L3 beam measurement and beam selection) is not affected. This supports network devices in transmitting on-demand synchronization reference signals and periodically transmitting sparse synchronization reference signals. Since after a cell enters energy-saving mode, the network device only transmits the energy-saving cell's synchronization reference signal when needed, or periodically transmits the energy-saving cell's sparse synchronization reference signal. Therefore, without affecting the synchronization reference signal functionality, the network device's energy consumption can be reduced, achieving energy saving. Attached Figure Description

[0114] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings.

[0115] Figure 1 is a flowchart illustrating a method for transmitting a synchronization signal according to an embodiment of this disclosure;

[0116] Figure 2 is a flowchart illustrating a method for receiving a synchronization signal according to an embodiment of this disclosure;

[0117] Figure 3 is a schematic diagram of an embodiment of this disclosure that does not send periodic SSBs;

[0118] Figure 4 is a schematic diagram of sending periodic SSBs according to an embodiment of this disclosure;

[0119] Figure 5 is a schematic diagram of sending sparse SSB, periodic SSB and on-demand SSB according to an embodiment of this disclosure;

[0120] Figure 6 is a schematic diagram of a synchronization signal transmitting device provided in an embodiment of this disclosure;

[0121] Figure 7 is a schematic diagram of a synchronization signal receiving device provided in an embodiment of this disclosure;

[0122] Figure 8 is a schematic diagram of a network device provided in an embodiment of this disclosure;

[0123] Figure 9 is a schematic diagram of a terminal device provided in an embodiment of this disclosure. Detailed Implementation

[0124] To better understand the above-described objectives, features, and advantages of this disclosure, the present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It is to be understood that the described embodiments are only some, not all, of the embodiments of this disclosure. The specific embodiments described herein are merely for explaining this disclosure and are not intended to limit it. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure are within the scope of protection of this disclosure.

[0125] It should be noted that in this article, relational terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0126] Since synchronization reference signals can be used for L3 measurements, once they become transmitted on demand, on the one hand, terminal equipment (e.g., user equipment (UE)) needs to know when to start measuring the on-demand synchronization reference signals; on the other hand, because the period of the on-demand synchronization reference signals is shorter than that of the periodically transmitted synchronization reference signals, the measurement configuration for periodically transmitted synchronization reference signals is not suitable for measuring on-demand synchronization reference signals, nor is it suitable for measuring synchronization reference signals with altered transmission periods (e.g., sparse synchronization reference signals). Therefore, it is necessary to enhance the measurement configuration so that terminal equipment can measure both on-demand synchronization reference signals and periodically transmitted sparse synchronization reference signals.

[0127] At least one embodiment of this disclosure discloses a method, apparatus, network device, terminal device, or medium for transmitting synchronization signals. By enhancing the measurement configuration, the terminal device can measure on-demand synchronization reference signals (i.e., a first synchronization reference signal) and / or sparse synchronization reference signals (i.e., a second synchronization reference signal with a changed transmission period) based on the measurement configuration. This solves the problem that current measurement configurations are not suitable for measuring on-demand synchronization reference signals and / or sparse synchronization reference signals. Furthermore, since sparse periodic synchronization reference signals can support neighbor cell measurements, the synchronization reference signal function (e.g., L1 / L3 beam measurement and beam selection) is not affected. This supports the network device in transmitting on-demand synchronization reference signals and periodically transmitting sparse synchronization reference signals. Since the network device only transmits the synchronization reference signal of the energy-saving cell when needed after the cell enters energy-saving mode, for example, only when the energy-saving cell is activated, and the transmission period of the synchronization reference signal of the energy-saving cell can be adjusted to make it sparser, the energy consumption of the network device can be reduced without affecting the synchronization reference signal function, thus achieving energy saving.

[0128] Figure 1 is a flowchart illustrating a method for transmitting a synchronization signal according to an embodiment of this disclosure. This method is applied to a network device. The network device is, for example, a base station. In a system where the Central Unit (CU) and Distributed Unit (DU) are separated, the base station includes both CU and DU; that is, the network device includes both a Central Unit (CU) and a Distributed Unit (DU). As shown in Figure 1, the method may include, but is not limited to, steps 101 and 102:

[0129] In step 101, the first synchronization reference signal of the energy-saving cell is sent to the terminal device as needed and / or the second synchronization reference signal of the energy-saving cell is sent periodically.

[0130] Among them, an energy-saving cell is a cell configured by network equipment that is allowed to enter an energy-saving (i.e., allows for reduced energy consumption) zone. An energy-saving cell is a cell controlled by a network device; that is, a network device can configure at least one of the multiple cells it controls as an energy-saving cell.

[0131] The first synchronization reference signal sent on demand can be described as an on-demand synchronization reference signal. For example, the first synchronization reference signal is a synchronization reference signal sent when data transmission is required.

[0132] The periodically transmitted second synchronization reference signal can be described as a periodic synchronization reference signal. The transmission period of the second synchronization reference signal is variable. If the transmission period is not changed, the transmission period of the second synchronization reference signal is the same as the transmission period of the currently periodically transmitted synchronization reference signal. If the transmission period is changed, the second synchronization reference signal becomes a sparse synchronization reference signal, in order to reduce the power consumption of network equipment and achieve energy saving.

[0133] In this embodiment, after identifying an energy-saving cell, the network device can send a first synchronization reference signal for the energy-saving cell to the terminal device on demand and / or periodically send a second synchronization reference signal for the energy-saving cell. Since the first synchronization reference signal is a synchronization reference signal sent on demand, and the second synchronization reference signal can be a sparse synchronization reference signal, the energy consumption of the network device can be reduced, thus achieving energy saving.

[0134] In step 102, a measurement configuration is sent to the terminal device; wherein the measurement configuration includes at least one of the following:

[0135] One or more sets of parameters for the first measurement time window, one or more sets of parameters for the second measurement time window, and one set of parameters for the third measurement time window;

[0136] The first measurement time window is used for measuring the energy-saving cell when the first synchronization reference signal is activated; the second measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is changed; and the third measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is not changed or when the first synchronization reference signal is activated.

[0137] The parameters of the first measurement time window include at least one of the following: period, length, and offset relative to the period. The parameters of the second measurement time window include at least one of the following: period, length, and offset relative to the period. The parameters of the third measurement time window include at least one of the following: period, length, and offset relative to the period.

[0138] In this embodiment, the network device can send a first synchronization reference signal activation signaling to the terminal device while sending the first synchronization reference signal of the energy-saving cell to the terminal device.

[0139] In this embodiment, the network device can send a second synchronization reference signal adjustment message to the terminal device when the transmission period of the second synchronization reference signal is changed. The second synchronization reference signal adjustment message includes the configuration identifier of the second synchronization reference signal.

[0140] In this embodiment, the network device is configured with a first measurement time window for the first synchronization reference signal transmitted on demand, a second measurement time window for the second synchronization reference signal when the transmission period changes, and a third measurement time window for the second synchronization reference signal when the transmission period remains unchanged. This allows the terminal device to perform energy-saving cell measurements based on either the first or third measurement time window after receiving the activation signaling for the first synchronization reference signal from the network device. Thus, on the one hand, the terminal device knows when to begin measuring the first synchronization reference signal; on the other hand, because the period of the first synchronization reference signal is shorter than that of the periodically transmitted synchronization reference signal, configuring the first measurement time window can be tailored to the terminal device's measurement of the first synchronization reference signal.

[0141] It should be noted that steps 101 and 102 are not logically related in sequence. That is, 101 can be executed first and then 102, or 102 can be executed first and then 101, or 101 and 102 can be executed simultaneously.

[0142] As can be seen, by enhancing the measurement configuration, terminal devices can measure on-demand synchronization reference signals (i.e., the first synchronization reference signal) and / or sparse synchronization reference signals (i.e., the second synchronization reference signal with a changed transmission period) based on the measurement configuration. This solves the problem that the current measurement configuration is not suitable for measuring on-demand synchronization reference signals and / or sparse synchronization reference signals, thereby supporting network devices to send on-demand synchronization reference signals and periodically send sparse synchronization reference signals. Since the cell enters energy-saving mode, the network devices only send the on-demand synchronization reference signal for the energy-saving cell when needed, or periodically send the sparse synchronization reference signal for the energy-saving cell. Therefore, the energy consumption of the network devices can be reduced, achieving energy saving. Furthermore, since sparse synchronization reference signals can support neighbor cell measurements, it does not affect the synchronization reference signal function (e.g., L1 / L3 beam measurement and beam selection).

[0143] In some embodiments, step 101, sending the first synchronization reference signal of the energy-saving cell to the terminal device on demand and / or periodically sending the second synchronization reference signal of the energy-saving cell, includes any one of the following (1) to (3):

[0144] (1) Send the first synchronization reference signal of the energy-saving community to the terminal equipment as needed.

[0145] In (1), the network device only sends the on-demand synchronization reference signal of the energy-saving cell (i.e., the first synchronization reference signal) to the terminal device, and does not send the sparse synchronization reference signal (i.e., the second synchronization reference signal that changes the transmission period) and system information to the terminal device.

[0146] (2) Send the first synchronization reference signal of the energy-saving cell to the terminal equipment as needed and send the second synchronization reference signal of the energy-saving cell periodically.

[0147] In (2), the network device only sends the on-demand synchronization reference signal (i.e., the first synchronization reference signal) and the sparse synchronization reference signal (i.e., the second synchronization reference signal with a changed transmission period) of the energy-saving cell to the terminal device, and does not send system information to the terminal device.

[0148] (3) Send the first synchronization reference signal of the energy-saving cell to the terminal equipment as needed, send the second synchronization reference signal of the energy-saving cell periodically, and send the system information of the energy-saving cell periodically.

[0149] In (3), in addition to sending the on-demand synchronization reference signal (i.e., the first synchronization reference signal) of the energy-saving cell to the terminal device, the network device can also periodically send the sparse synchronization reference signal of the energy-saving cell (i.e., the second synchronization reference signal with a changed transmission period) and periodically send the system information of the energy-saving cell. Among them, the sparse synchronization reference signal can support neighbor cell measurement, and the system information can support the terminal device to perform cell search and camp, thus avoiding the impact on network coverage.

[0150] In some embodiments, in a system where the central unit (CU) and distributed unit (DU) are separated, the network device includes a central unit (CU) and a distributed unit (DU).

[0151] In step 101, before sending the first synchronization reference signal of the energy-saving cell to the terminal device on demand and / or periodically sending the second synchronization reference signal of the energy-saving cell, the method further includes the following steps (1) and (2):

[0152] (1) The centralized unit (CU) of the network device sends energy-saving instruction information to the distributed unit (DU) of the network device. The energy-saving instruction information is used to instruct the distributed unit (DU) of the network device to send the first synchronization reference signal of the energy-saving cell as needed.

[0153] The energy-saving indicator information can also be used to indicate:

[0154] Instructing the distribution unit (DU) of the network device to periodically send the second synchronization reference signal of the energy-saving cell; and / or, instructing the distribution unit (DU) of the network device to periodically send the system information of the energy-saving cell.

[0155] In cases where the energy-saving indication information instructs the distribution unit (DU) of the network equipment to periodically send the second synchronization reference signal of the energy-saving cell, the energy-saving indication information is also used to indicate whether the second synchronization reference signal is located in the synchronization grid.

[0156] (2) The distribution unit (DU) of the network equipment determines the energy-saving zone based on the energy-saving indication information.

[0157] In this embodiment, the distribution unit (DU) determines which cells are eligible for energy saving and what type of energy-saving cells are implemented. The central unit (CU) collaborates with the distribution unit (DU) to determine which cells are allowed to enter the energy-saving zone and the energy-saving type of the cells. For example, the central unit (CU) can indicate to the distribution unit (DU) which cells are allowed to enter the energy-saving zone and the following (1) to (3):

[0158] (1) Whether to send the first synchronization reference signal as needed.

[0159] (2) Whether the second synchronization reference signal is periodically sent (the second synchronization reference signal is a periodically adjustable synchronization reference signal).

[0160] (3) Whether to send system information.

[0161] Based on the instructions from the centralized unit (CU), the distributed unit (DU) can determine the energy-saving type of the energy-saving community. The energy-saving type is any one of the following A through C:

[0162] A: Send the first synchronization reference signal as needed, but do not send the second synchronization reference signal or system information.

[0163] In A, the network device only sends the on-demand synchronization reference signal of the energy-saving cell (i.e., the first synchronization reference signal) to the terminal device, and does not send the sparse synchronization reference signal (i.e., the second synchronization reference signal that changes the transmission period) and system information to the terminal device.

[0164] B: Send the first synchronization reference signal as needed and the second synchronization reference signal periodically, without sending system information.

[0165] In B, the network device only sends the on-demand synchronization reference signal (i.e., the first synchronization reference signal) and the sparse synchronization reference signal (i.e., the second synchronization reference signal with a changed transmission period) of the energy-saving cell to the terminal device, and does not send system information to the terminal device.

[0166] C: Send the first synchronization reference signal on demand, send the second synchronization reference signal periodically, and send system information periodically (including system information sent on demand and system information assisted by neighboring cells).

[0167] In C, in addition to sending the on-demand synchronization reference signal (i.e., the first synchronization reference signal) of the energy-saving cell to the terminal device, the network device can also periodically send the sparse synchronization reference signal of the energy-saving cell (i.e., the second synchronization reference signal with a changed transmission period), and periodically send the system information of the energy-saving cell. Among them, the sparse synchronization reference signal can support neighbor cell measurement, and the system information can support the terminal device to perform cell search and camp, avoiding the impact on network coverage.

[0168] In some embodiments, in a system where the central unit (CU) and distributed unit (DU) are separated, the network device includes a central unit (CU) and a distributed unit (DU).

[0169] In step 102, the measurement configuration is sent to the terminal device, including the following (1) and (2):

[0170] (1) The distribution unit (DU) of the network device determines the measurement configuration and sends the measurement configuration to the central unit (CU) of the network device.

[0171] (2) The central unit (CU) of the network device sends the measurement configuration to the terminal device.

[0172] In this embodiment, the measurement configuration is performed by the distribution unit (DU), and the measurement configuration includes at least one of the following: parameters of the first measurement time window, parameters of the second measurement time window, and parameters of the third measurement time window; the distribution unit (DU) sends the measurement configuration to the central unit (CU), and then the central unit (CU) sends the measurement configuration to the terminal device.

[0173] In some embodiments, the measurement configuration in step 102 further includes at least one of the following (1) and (2):

[0174] (1) One or more sets of parameters of the first synchronization reference signal.

[0175] Each set of parameters for the first synchronization reference signal includes at least one of the following: transmission period, transmission frequency, beam, downlink transmission power, and time position. Each set of parameters for the first synchronization reference signal may also include a configuration identifier for the first synchronization reference signal.

[0176] In the case where the measurement configuration includes multiple sets of parameters for multiple first measurement time windows, one set of parameters for the first measurement time window corresponds to one set of parameters for the first synchronization reference signal.

[0177] In this embodiment, the network device can send a first synchronization reference signal activation message to the terminal device when sending the first synchronization reference signal of the energy-saving cell to the terminal device. The first synchronization reference signal activation message includes the configuration identifier of the first synchronization reference signal.

[0178] (2) One or more sets of parameters of the second synchronization reference signal.

[0179] Each set of parameters for the second synchronization reference signal includes the transmission period. Each set of parameters for the second synchronization reference signal also includes a configuration identifier for the second synchronization reference signal.

[0180] In the case where the measurement configuration includes multiple sets of parameters for the second measurement time window, one set of parameters for the second measurement time window corresponds to one set of parameters for the second synchronization reference signal.

[0181] In some embodiments, the network device may send a first synchronization reference signal activation signaling to the terminal device while sending a first synchronization reference signal of the energy-saving cell to the terminal device.

[0182] The on-demand transmission of the first synchronization reference signal includes the on-demand transmission of the synchronization signal block (OD-SSB).

[0183] OD-SSB can be used in Radio Resource Control Connected (RRC Connected) mode for terminal equipment (e.g., User Equipment) to perform Layer 1 or Layer 3 (L1 / L3) measurements or activate secondary cells (SCells). However, unlike the continuous transmission of periodically sent synchronization signal blocks, OD-SSB transmission is only triggered when an SCell is activated. Therefore, network equipment needs to activate OD-SSB transmission. Network equipment configures OD-SSB via RRC signaling, including configuring subcarrier spacing, physical cell ID, downlink transmission power, frequency, SSB position in the synchronization signal block burst, transmission period, and SSB burst time position (including sub-frame number (SFN) offset and half-frame position).

[0184] There are two scenarios for activating OD-SSB: 1. After the base station configures the SCell, OD-SSB is activated before the SCell is activated; 2. The base station activates the SCell and OD-SSB simultaneously. Furthermore, the activation and deactivation of OD-SSB by the base station can be indicated via RRC signaling or Media Access Control (MAC) Control Element (MAC CE) signaling.

[0185] In some embodiments, the frequency of the first synchronization reference signal is the same as the frequency of the second synchronization reference signal. The first measurement time window is configured with the second measurement time window or the third measurement time window using the same measurement configuration. The measurement configuration may further include:

[0186] The frequencies of the first and second synchronization reference signals, the parameters of the first measurement time window, and at least one of the following: the parameters of the second measurement time window and the parameters of the third measurement time window.

[0187] The parameters of the second measurement time window may include at least one of the following: period, length, and offset relative to the period. The parameters of the third measurement time window may include at least one of the following: period, length, and offset relative to the period.

[0188] In some embodiments, the frequency of the first synchronization reference signal is either different from or the same as the frequency of the second synchronization reference signal. A first measurement time window is configured using a first measurement configuration, and a second and / or third measurement time window is configured using a second measurement configuration.

[0189] The first measurement configuration includes the frequency of the first synchronization reference signal and the parameters of the first measurement time window. The second measurement configuration includes the frequency of the second synchronization reference signal and at least one of the following: the parameters of the second measurement time window and the parameters of the third measurement time window.

[0190] The parameters of the second measurement time window may include at least one of the following: period, length, and offset relative to the period. The parameters of the third measurement time window may include at least one of the following: period, length, and offset relative to the period.

[0191] In some embodiments, the first synchronization reference signal includes a first synchronization signal block (SSB), and the second synchronization reference signal includes a second SSB.

[0192] The measurement configuration includes at least one of the following:

[0193] The parameters of the first synchronizing broadcast block measurement timing configuration (SMTC), the parameters of the second SMTC, and the parameters of the third SMTC.

[0194] The first SMTC is used to measure energy-saving cells when the first SSB is activated; the second SMTC is used to measure energy-saving cells when the transmission period of the second SSB is changed; and the third SMTC is used to measure energy-saving cells when the transmission period of the second SSB is not changed or when the first SSB is activated.

[0195] If the frequency of the first SSB is the same as the frequency of the second SSB, then the first SMTC is configured with the second SMTC or the third SMTC through the same measurement configuration; wherein, the measurement configuration includes: the frequencies of the first SSB and the second SSB, the parameters of the first SMTC and at least one of the following: the parameters of the second SMTC and the parameters of the third SMTC.

[0196] If the frequency of the first SSB is different from or the same as the frequency of the second SSB, the first SMTC is configured through the first measurement configuration, and the second SMTC and / or the third SMTC is configured through the second measurement configuration; wherein, the first measurement configuration includes the frequency of the first SSB and the parameters of the first SMTC; the second measurement configuration includes the frequency of the second SSB and at least one of the following: the parameters of the second SMTC and the parameters of the third SMTC.

[0197] Figure 2 is a flowchart illustrating a method for receiving a synchronization signal according to an embodiment of this disclosure. This method is applied to a terminal device, such as a user equipment (UE) or a user terminal (UT). As shown in Figure 2, the method may include, but is not limited to, steps 201 and 202:

[0198] In step 201, a measurement configuration sent by the network device is received, the measurement configuration including at least one of the following:

[0199] One or more sets of parameters for the first measurement time window, one or more sets of parameters for the second measurement time window, and one set of parameters for the third measurement time window;

[0200] The first measurement time window is used for measuring the energy-saving cell when the first synchronization reference signal is activated; the second measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is changed; and the third measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is not changed or when the first synchronization reference signal is activated.

[0201] In step 202, the network device receives the first synchronization reference signal of the energy-saving cell sent on demand and / or the second synchronization reference signal of the energy-saving cell sent periodically.

[0202] The first synchronization reference signal, which is sent on demand, can be described as an on-demand synchronization reference signal. For example, the first synchronization reference signal is a synchronization reference signal sent when data transmission is required.

[0203] The periodically transmitted second synchronization reference signal can be described as a periodic synchronization reference signal. The transmission period of the second synchronization reference signal is variable. If the transmission period is not changed, the transmission period of the second synchronization reference signal is the same as the transmission period of the currently periodically transmitted synchronization reference signal. If the transmission period is changed, the second synchronization reference signal becomes a sparse synchronization reference signal, in order to reduce the power consumption of network equipment and achieve energy saving.

[0204] In some embodiments, the measurement configuration further includes at least one of the following (1) and (2):

[0205] (1) One or more sets of parameters of the first synchronization reference signal.

[0206] Each set of parameters for the first synchronization reference signal includes at least one of the following: transmission period, transmission frequency, beam, downlink transmission power, and time position. Each set of parameters for the first synchronization reference signal may also include a configuration identifier for the first synchronization reference signal.

[0207] In the case where the measurement configuration includes multiple sets of parameters for the first measurement time window, one set of parameters for the first measurement time window corresponds to one set of parameters for the first synchronization reference signal.

[0208] In this embodiment, the network device can send a first synchronization reference signal activation message to the terminal device when sending the first synchronization reference signal of the energy-saving cell to the terminal device on demand. The first synchronization reference signal activation message includes the configuration identifier of the first synchronization reference signal.

[0209] (2) One or more sets of parameters of the second synchronization reference signal.

[0210] Each set of parameters for the second synchronization reference signal includes the transmission period. Each set of parameters for the second synchronization reference signal also includes a configuration identifier for the second synchronization reference signal.

[0211] In the case where the measurement configuration includes multiple sets of parameters for the second measurement time window, one set of parameters for the second measurement time window corresponds to one set of parameters for the second synchronization reference signal.

[0212] In some embodiments, the method for receiving the synchronization signal further includes the following step 203, which is not shown in FIG2:

[0213] 203: Based on the measurement configuration and at least one of the following: a first synchronization reference signal and a second synchronization reference signal, the energy-saving cell is measured.

[0214] In this embodiment, the terminal device can receive a second synchronization reference signal adjustment signaling sent by the network device. The second synchronization reference signal adjustment signaling includes a configuration identifier of the second synchronization reference signal. Accordingly, in step 203, the terminal device performs Layer 3 measurement on the second synchronization reference signal of the energy-saving cell based on a second measurement time window. If the measurement configuration includes multiple sets of parameters of the second synchronization reference signal, the terminal device performs Layer 3 measurement on the second synchronization reference signal of the energy-saving cell based on a set of parameters of the second measurement time window corresponding to the configuration identifier.

[0215] In some embodiments, if the period of the second synchronization reference signal corresponding to the configuration identifier included in the second synchronization reference signal adjustment signaling is infinite, or if an indication message is received from the network device to stop sending the second synchronization reference signal, the terminal device stops performing layer 3 measurements on the energy-saving cell.

[0216] In some embodiments, the terminal device may also receive a first synchronization reference signal activation signaling sent by the network device, the first synchronization reference signal activation signaling including a configuration identifier of the first synchronization reference signal. Accordingly, in step 203, the terminal device performs Layer 3 measurement on the first synchronization reference signal of the energy-saving cell based on a first measurement time window or a third measurement time window. If the measurement configuration includes multiple sets of parameters of the first synchronization reference signal, the terminal device performs Layer 3 measurement on the first synchronization reference signal of the energy-saving cell based on a set of parameters of the first measurement time window corresponding to the configuration identifier in the measurement configuration.

[0217] Among them, the terminal equipment performs layer 3 measurement on the first synchronization reference signal of the energy-saving community based on the first measurement time window or the third measurement time window, including the following (1) or (2):

[0218] (1) When the measurement configuration includes one or more sets of parameters including the first measurement time window, the first synchronization reference signal of the energy-saving cell is measured at layer 3 based on the first measurement time window.

[0219] (2) In the case that the measurement configuration does not include one or more sets of parameters of the first measurement time window, the first synchronization reference signal of the energy-saving cell is measured at layer 3 based on the third measurement time window.

[0220] In this embodiment, when the terminal device receives the first synchronization reference signal deactivation instruction sent by the network device, it stops performing Layer 3 measurement on the first synchronization reference signal of the energy-saving cell based on the first measurement time window or the third measurement time window.

[0221] In some embodiments, the first synchronization reference signal includes a first SSB, and the second synchronization reference signal includes a second SSB.

[0222] The measurement configuration includes at least one of the following:

[0223] Parameters of the first SMTC, parameters of the second SMTC, and parameters of the third SMTC;

[0224] The first SMTC is used to measure energy-saving cells when the first SSB is activated; the second SMTC is used to measure energy-saving cells when the transmission period of the second SSB is changed; and the third SMTC is used to measure energy-saving cells when the transmission period of the second SSB is not changed or when the first SSB is activated.

[0225] In this embodiment, when the measurement configuration includes at least one of the following: parameters of the first SMTC, parameters of the second SMTC, and parameters of the third SMTC, the terminal device performs at least one of the following (1) and (2):

[0226] (1) Upon receiving the second synchronization reference signal adjustment signaling, stop performing layer 3 measurement on the energy-saving cell or perform layer 3 measurement on the energy-saving cell based on the second SMTC.

[0227] (2) Upon receiving the activation signaling of the first synchronization reference signal, perform layer 3 measurement on the energy-saving cell based on the first SMTC or the third SMTC.

[0228] In this embodiment, when the terminal device receives the first synchronization reference signal deactivation instruction sent by the network device, it stops performing layer 3 measurement on the energy-saving cell based on the first SMTC or the third SMTC.

[0229] Example 1:

[0230] This embodiment illustrates how 6G wireless network equipment determines the type of energy-saving cell and the parameters of the on-demand synchronization reference signal.

[0231] The periodically transmitted synchronization reference signal can be used for L3 measurement of neighboring cells. If the synchronization reference signal becomes transmitted on demand, the terminal device cannot perform neighboring cell measurement because the terminal device cannot know when the neighboring cell will send this signal.

[0232] To address this issue, for energy-efficient cells that require neighbor cell measurements as terminal devices, network devices can send sparse synchronization reference signals with a period longer than the on-demand synchronization reference signal, in addition to the on-demand synchronization reference signal. For energy-efficient cells that do not require neighbor cell measurements, only the on-demand synchronization reference signal needs to be sent.

[0233] Synchronization reference signals can also be used for cell search and beam selection. In energy-efficient cells, sending synchronization reference signals only when needed may affect network coverage because terminal devices cannot perform cell search and beam selection based on on-demand synchronization reference signals. For cells providing network coverage, they need to be discoverable by terminal devices, have their system information read, and be able to camp on them. In addition to sending sparse synchronization reference signals, network devices also need to send system information. For cells that do not need to provide network coverage, they do not need to send system information.

[0234] Therefore, there are three types of energy-efficient cells that transmit synchronization reference signals on demand:

[0235] - Do not send periodic synchronization reference signals and system information.

[0236] - Send sparse synchronization reference signals, but do not send system information.

[0237] - Send sparse synchronization reference signals and system information (including system information sent on demand and system information assisted by neighboring cells).

[0238] 6G systems support a novel distributed intelligent wireless network architecture, considering a multi-layered topology on the radio access network side. Intelligent functional components can be deployed in distributed units (DU), centralized units (CU), edge nodes, and the cloud. Different layers can be configured and deployed for different functions, forming multi-layered data analysis network elements, enabling collaborative management between layers and distributed management between different network nodes at the same layer.

[0239] Since most of the energy in wireless network equipment is consumed by the Distribution Unit (DU), the DU can determine which cells are eligible for energy saving and what type of energy-saving cells are implemented. The network's measurement configuration and the coverage area of ​​each cell are controlled and determined by the Central Unit (CU). Therefore, the CU, in conjunction with the DU, can determine which cells are allowed to enter energy saving and the energy saving type for these cells. The CU can indicate to the DU the identifier of the cell allowed to enter energy saving, as well as whether the cell should send synchronization reference signals as needed, whether to send sparse synchronization reference signals, and whether to send system information.

[0240] In addition, network devices need to determine and configure parameters for on-demand synchronization signals, including one or more parameters such as transmission period, transmission frequency, beam, downlink transmission power, and time position.

[0241] -cycle

[0242] The longer the cycle, the more significant the energy-saving effect. Network equipment can be configured with the cycle according to energy-saving requirements. If the base station in the energy-saving cell sends a periodic synchronization reference signal, the cycle of the on-demand synchronization reference signal should be shorter than that of the periodic synchronization reference signal.

[0243] -frequency

[0244] If the base station of the energy-saving community sends a periodic synchronization reference signal, the on-demand synchronization reference signal can be at the same frequency as the periodic synchronization reference signal or at a different frequency.

[0245] -beam

[0246] The transmit beam of the on-demand synchronization reference signal can be the same as that of the periodic synchronization reference signal, or a subset thereof. Network devices can configure the beam of the on-demand synchronization reference signal based on the beam used by the terminal devices or the measurement reports of the terminal devices; fewer beams result in better energy savings. The network can configure the transmit beam of the on-demand synchronization reference signal according to energy-saving requirements.

[0247] -Time location

[0248] The transmission time of the on-demand synchronization reference signal can overlap with that of the periodic synchronization reference signal. Network devices can determine the time-frequency position of the on-demand synchronization reference signal based on the time-frequency position of the periodic synchronization reference signal. For example, if the on-demand synchronization reference signal and the periodic synchronization reference signal have the same frequency, then the on-demand synchronization reference signal and the periodic synchronization reference signal do not overlap; otherwise, they can overlap.

[0249] In a system where the CU / DU are separated, all of the above parameters are determined by the DU. The network can send these parameters to the UE via RRC signaling.

[0250] Example 2:

[0251] This example illustrates how network devices (e.g., base stations) determine the type of energy-efficient cell and the parameters of the OD-SSB.

[0252] OD-SSB is only used for L1 / L3 measurements of SCells and cannot be used for neighbor cell measurements. Currently, neighbor cell measurements can only be based on periodic SSBs. If a cell does not send periodic SSBs, it may affect the base station's configuration of neighbor cell measurements for terminal equipment. For cells that do not need to be configured as neighbor cell measurement targets, the base station does not need to send periodic SSBs; for cells that need to be configured as neighbor cell measurement targets, the base station needs to send periodic SSBs.

[0253] Energy-saving community types include:

[0254] - Do not send periodic SSBs (i.e., traditional SSBs);

[0255] In addition to sending OD-SSB, periodic SSBs are also sent.

[0256] Figure 3 is a schematic diagram of an embodiment of the present disclosure that does not send periodic SSBs. In Figure 3, the period of OD-SSB is 40 milliseconds (ms).

[0257] Figure 4 is a schematic diagram of transmitting a periodic SSB according to an embodiment of the present disclosure. In Figure 4, the period of the periodic SSB (Always-on SSB) is 160 milliseconds (ms).

[0258] In a split architecture of the Radio Access Network (RAN), the measurement and configuration are performed by the CU (Curricular Unit Control) of the gNB (gNB). Therefore, the gNB-CU can assist the gNB-DU in determining whether energy-saving cells need to transmit periodic SSBs. The gNB-CU can indicate to the gNB-DU which cells are allowed to enter the energy-saving mode and the associated periodic SSB information, indicating whether periodic SSBs (always-on SSBs) are mandatory. A list of cells allowed to operate OD-SSB is added to the F1 SETUP RESPONSE message or the GNB-CU CONFIGURATION UPDATE message. For each allowed cell, a periodic SSB transmission identifier is added, including this identifier to indicate that the cell needs to transmit periodic SSBs.

[0259] Table 1: GNB-CU CONFIGURATION UPDATE Messages

[0260] OD-SSB parameters include one or more of the following: Subcarrier Spacing (SCS), transmission period, transmission frequency, SSB position in the burst, downlink transmission power, and SSB burst time position.

[0261] - Period (5 ms, 10 ms, 20 ms, 40 ms, 80 ms or 160 ms)

[0262] If an OD-SSB cell transmits periodic SSBs, the base station selects a period shorter than the periodic SSB period as the OD-SSB period. A longer period results in a more significant energy-saving effect, and the base station can configure the period according to energy-saving requirements.

[0263] -frequency

[0264] It may be on the same frequency or a different frequency than the periodic SSB in the same cell.

[0265] SSB location in Burst

[0266] Similar to periodic SSBs, this is a subset of the SSB locations of a periodic SSB burst. The base station can configure SSB locations based on the SSBs used by the terminal equipment or the terminal equipment's SSB measurement report. Fewer SSB locations mean fewer SSBs included in the burst, resulting in better energy efficiency. The base station can configure SSB locations according to energy-saving requirements.

[0267] -Time position of SSB burst

[0268] Including SFN offset and half-frame position, if the cell's base station transmits a periodic SSB, the base station can configure the time position of the OD-SSB Burst based on the time-frequency position of the periodic SSB Burst. For example, if the OD-SSB SSB and the periodic SSB are on the same frequency, the time position of the burst will not overlap with that of the periodic SSB; otherwise, they can overlap.

[0269] For cells transmitting periodic SSBs, the base station needs to determine the SCS, transmission period, transmission frequency, SSB position in the burst, and downlink transmission power. The periodic SSBs in energy-saving cells primarily alter the period of traditional SSBs, making them sparser, thereby saving base station energy consumption.

[0270] In the split architecture, the parameters of OD-SSB and always-on SSB are determined by gNB-DU itself.

[0271] The base station can send measurement configurations, including multiple sets of OD-SSB parameters, to the terminal equipment via RRC signaling. Each set of parameters corresponds to a configuration ID, including the following parameters:

[0272] Subcarrier spacing (SCS);

[0273] Period (ms);

[0274] Frequency (ARFCN-ValueNR);

[0275] SSB positions in Burst (ssb-PositionsInBurst);

[0276] The timing of the SSB burst (SFN offset and half Frame Index).

[0277] Similarly, the measurement configuration, which includes multiple sets of parameters for always-on SSB, is sent to the terminal device via RRC. Each set of parameters includes at least the configuration ID and the period.

[0278] When a cell enters energy-saving mode, the base station sends a periodic SSB adjustment indication to activate the periodic transmission of sparse SSBs. When data transmission is required, the base station can send an OD-SSB activation MAC CE message carrying a configuration ID to the terminal device, or send an RRC message instructing the terminal to use a set of parameters for the OD-SSB.

[0279] In the split architecture, the above OD-SSB and always-on SSB configurations are generated by gNB-DU and sent to gNB-CU via RRC container (RRCcontainer), and then sent to the terminal device. gNB-DU then sends a MAC CE instruction to the terminal device, specifying a set of parameters for using OD-SSB.

[0280] Example 3:

[0281] This embodiment illustrates how to determine whether the periodic SSB sent by the base station of an energy-saving cell is a cell-defined SSB (CD-SSB).

[0282] The CD-SSB includes time-frequency resource location information for the Physical Downlink Control Channel (PDCCH) used to schedule SIB1. A SpCell, acting as a terminal device (UE), must have a traditional, periodically transmitted CD-SSB; that is, a cell cannot be configured as a connected UE's SpCell if it does not transmit CD-SSBs. Conversely, if a cell does not transmit CD-SSBs, it will not broadcast SIB1, and idle UEs cannot camp on that cell. If an energy-efficient cell does not transmit periodic CD-SSBs, it may affect the cell's coverage (e.g., causing coverage holes), so the base station must determine whether an energy-efficient cell should transmit traditional CD-SSBs. For example, the base station can determine this based on network coverage: if the energy-efficient cell's coverage does not overlap with other cells, the cell needs to transmit traditional CD-SSBs; otherwise, it does not. In addition, even if an OD-SSB cell has a traditional CD-SSB, if the CD-SSB is not located in the synchronization grid, an idle UE may not be able to camp in that cell (at least for traditional UEs prior to R19). Therefore, the periodic CD-SSBs sent need to be located in the synchronization grid.

[0283] In a split architecture, neighbor relationships and cell coverage are controlled by the gNB-CU. Therefore, the gNB-CU can send auxiliary information to the gNB-DU to help the gNB-DU determine whether a cell with OD-SSB should transmit a traditional CD-SSB. Thus, the gNB-CU can indicate to the gNB-DU whether the periodic SSB (always-on SSB) in a cell that is allowed to enable OD-SSB operation is a CD-SSB and whether it needs to be located on a synchronization grid.

[0284] The F1 SETUP RESPONSE message or GNB-CU CONFIGURATION UPDATE message includes a list of cells that are allowed to operate OD-SSB. Each cell that is allowed to operate includes a periodic SSB identifier and a CD-SSB identifier. When the CD-SSB identifier is present, it indicates that the periodic SSB must be a CD-SSB.

[0285] Table 2 GNB-CU CONFIGURATION UPDATE Message

[0286] Example 4:

[0287] This embodiment illustrates how to configure L3 measurements for on-demand synchronization reference signals. The object of L3 measurement is frequency. In energy-efficient communities, there are three frequency relationships between on-demand synchronization reference signals and periodic synchronization reference signals:

[0288] - Do not send periodic synchronization reference signals;

[0289] - The on-demand synchronization reference signal and the periodic synchronization reference signal (e.g., sparse synchronization reference signal) are at the same frequency;

[0290] - On-demand synchronization reference signals and periodic synchronization reference signals (such as sparse synchronization reference signals) are different frequencies.

[0291] When the energy-saving cell does not send periodic synchronization reference signals, the UE needs to know when to start measurement on the frequency of the on-demand synchronization reference signal.

[0292] When on-demand synchronization reference signals and periodic synchronization reference signals (e.g., sparse synchronization reference signals) operate at the same or different frequencies, the periodic synchronization reference signal becomes longer than the traditional synchronization reference signal, while the period of the on-demand synchronization reference signal is shorter than that of the periodic synchronization reference signal. Therefore, the measurement timing window used for measuring the traditional synchronization reference signal is unsuitable for measuring the sparse synchronization reference signal and the on-demand synchronization reference signal. It is necessary to introduce a measurement timing window configuration specifically for sparse synchronization reference signals or for on-demand synchronization reference signals. When the UE receives a sparse synchronization reference signal activation signaling from the network, measurement is performed based on the sparse measurement timing window. When the UE receives an activation indication signaling for the on-demand synchronization reference signal, L3 measurement is performed based on either the traditional measurement timing window (which can be used after activating the on-demand synchronization reference signal, i.e., the third measurement timing window) or the measurement timing window of the on-demand synchronization reference signal (first measurement timing window). When the UE receives a periodic synchronization reference signal deactivation signaling, L3 measurement of the periodic synchronization reference signal is stopped.

[0293] 1. Base stations in energy-saving communities do not send periodic synchronization reference signals.

[0294] Configure the measurement object for measuring the on-demand synchronization signal, including the frequency of the on-demand synchronization signal and the measurement time window configuration for measuring the on-demand synchronization signal.

[0295] 2. In the base stations of energy-saving communities, the on-demand synchronization reference signal and the periodic synchronization reference signal are on the same frequency.

[0296] Two methods: 1) Use a measurement configuration to measure the frequency of the synchronization reference signal, as well as the measurement time window for the on-demand synchronization reference signal and the measurement time window for the sparse synchronization reference signal; 2) Configure a first measurement configuration for the on-demand synchronization reference signal and a second measurement configuration for the periodic synchronization reference signal, with the same frequency in both configurations, and include the measurement time window for the on-demand synchronization reference signal and the measurement time window for the sparse synchronization reference signal, respectively.

[0297] 3. In the base stations of energy-saving communities, the on-demand synchronization reference signal and the periodic synchronization reference signal are of different frequencies.

[0298] A first measurement configuration for on-demand synchronization reference signals and a second measurement configuration for periodic synchronization reference signals are configured respectively. The first measurement configuration includes the frequency of the on-demand synchronization reference signal and the measurement time window of the on-demand synchronization reference signal. The second measurement configuration includes the frequency of the periodic synchronization reference signal and the measurement time window of the periodic synchronization reference signal.

[0299] In the novel distributed intelligent wireless network architecture based on the 6G system, the parameters of the synchronization reference signal are determined by the distributed unit (DU), and therefore the measurement time window is also determined by the DU. The measurement configuration is configured by the centralized unit (CU), and the DU needs to send the measurement time window for the on-demand synchronization reference signal to the CU for configuring the measurement configuration for the on-demand synchronization reference signal.

[0300] Example 5:

[0301] This example illustrates how to configure L3 measurements related to Sparse-SSB and OD-SSB.

[0302] When the base station of the energy-saving cell does not send periodic SSBs or when the OD-SSB and periodic SSB are on different frequencies, the UE needs to know when to start measurement on the frequency of the OD-SSB. When the OD-SSB and periodic SSB are on the same frequency, because the period of sparse SSBs is longer than that of traditional SSBs, while the period of OD-SSBs is shorter than that of sparse SSBs, the SMTC used to measure traditional SSBs is not suitable for measuring sparse SSBs, and the SMTC for sparse SSBs is also not suitable for L3 measurement after OD-SSB activation. Therefore, it is necessary to introduce an SMTC for sparse SSBs or introduce an OD-SSB-related SMTC or measurement object. When the UE receives a periodic SSB adjustment command, the UE stops or uses the sparse SSB SMTC for measurement. When the UE receives an OD-SSB activation command for the OD-SSB cell (via RRC or MAC CE), the UE resumes using the traditional SMTC or uses the OD-SSB SMTC or measurement object to perform L3 measurement on that cell.

[0303] Figure 5 is a schematic diagram illustrating the measurement of SMTC based on sparse SSB and SMTC based on on-demand SSB according to embodiments of this disclosure. The period of sparse SSB is 160 milliseconds (ms) after adjusting the period of Always-on SSB, and the period of OD-SSB is 40 milliseconds (ms).

[0304] In the Measurement Object IE, an optional enumeration type ENUMERATED{true} OD-SSB identifier is introduced to indicate that the measurement object is used to measure OD-SSB. Additionally, the Measurement Object IE can also introduce one or more optional SMTCs for sparseSSB and OD-SSB.

[0305] There are three scenarios for configuring L3 measurements with OD-SSB:

[0306] 1. Base stations in energy-saving communities do not send periodic SSBs.

[0307] In this scenario, the periodic SSB is deactivated. A measurement configuration (or measurement target) for measuring the OD-SSB is configured on the OD-SSB frequency. The measurement configuration includes an OD-SSB identifier to indicate that the measurement configuration is for the OD-SSB, and the SMTC in the measurement configuration is used to measure the OD-SSB. When the UE receives a network device indication signaling that the periodic SSB is deactivated, it stops L3 measurements on that cell. When the UE receives an OD-SSB activation command for the OD-SSB cell, the UE performs L3 measurements on that cell using the SMTC included in the measurement configuration.

[0308] 2. The OD-SSB cell transmits periodic SSBs, and the OD-SSB and periodic SSBs are on the same frequency.

[0309] Two methods: 1. Configure SMTC for OD-SSB and SMTC for periodic SSB using one measurement configuration; 2. Configure SMTC for OD-SSB and SMTC for periodic SSB using different measurement configurations respectively.

[0310] The same measurement configuration is used: the measurement configuration does not include the OD-SSB identifier, but includes a Sparse-SSB SMTC for measuring periodic SSBs, and also includes an OD-SSB SMTC for measuring OD-SSBs. When the UE receives an SSB periodicity adjustment indication, it performs L3 measurements using the Sparse-SSB SMTC. When the UE receives an OD-SSB activation command for an OD-SSB cell, it performs L3 measurements for that cell using the OD-SSB SMTC included in the measurement configuration, or simultaneously performs L3 measurements using both the OD-SSB SMTC and the Sparse SMTC included in the measurement configuration.

[0311] Configure different measurement configurations: Configure a measurement configuration for measuring periodic SSBs and a measurement configuration for measuring OD-SSBs on this frequency. The measurement configuration for measuring periodic SSBs does not include the OD-SSB identifier, and the Sparse SSB SMTC included in this configuration is used to measure periodic SSBs. The measurement configuration for OD-SSBs includes the OD-SSB identifier to indicate that the measurement configuration is for OD-SSBs, and the SMTC included in this configuration is used to measure OD-SSBs. When the UE receives an SSB period adjustment indication, it performs L3 measurements using the Sparse-SSB SMTC. When the UE receives an OD-SSB activation command for an OD-SSB cell, it performs L3 measurements on that cell using the SMTC included in the measurement configuration for OD-SSBs, or it performs L3 measurements using both SMTCs simultaneously.

[0312] 3. The OD-SSB cell transmits periodic SSBs, and the OD-SSB and periodic SSBs are on different frequencies.

[0313] Configure measurement objects for OD-SSB on OD-SSB frequencies and configure measurement objects for periodic SSB on periodic SSB frequencies. The OD-SSB identifier in the measurement object used to measure periodic SSB indicates that the measurement object is for periodic SSB, and the sparse SMTC included in the measurement object is for periodic SSB. The OD-SSB identifier in the measurement object for OD-SSB indicates that the measurement object is for OD-SSB, and the SMTC included in the measurement object is for OD-SSB. When the UE receives an SSB period adjustment indication, it performs L3 measurement using the sparse-SSB SMTC in the measurement object. When the UE receives an OD-SSB activation command for an OD-SSB cell, it performs L3 measurement for that cell using the SMTC included in the measurement configuration for OD-SSB, or performs L3 measurement using the SMTCs in both measurement configurations.

[0314] In a split architecture, the gNB-DU configures the SMTC for L3 measurements for each cell and sends it to the gNB-CU via the MeasurementTimingConfiguration message. The gNB-CU then configures the measurement objects. The gNB-DU needs to send the SMTCs for sparse-SSB and OD-SSB to the gNB-CU for L3 measurement configuration. Additionally, the gNB-DU needs to specify which SMTCs are for sparse-SSB and OD-SSB measurements.

[0315] The existing measurement timing configuration (MeasTiming) IE is frequency-specific. This IE introduces an optional enumeration type `ENUMERATED{true}` for the OD-SSB, indicating that the measurement timing configuration is for measuring the OD-SSB. Additionally, one or more optional SMTCs for the Sparse-SSB and the OD-SSB can be introduced.

[0316] When the OD-SSB cell does not transmit periodic SSBs, or when the OD-SSB and periodic SSBs are on different frequencies, the gNB-DU can transmit a MeasTiming IE specifically for OD-SSB measurements. This includes an SMTC for OD-SSB, and the included OD-SSB identifier indicates that the measurement timing configuration is for OD-SSB. When the OD-SSB and periodic SSBs are on the same frequency, the gNB-DU can transmit SMTCs for both OD-SSB and periodic SSBs using the same measurement timing configuration, or it can transmit two different SMTCs using different measurement timing configurations. If the same measurement timing configuration is used, the OD-SSB identifier is not included; the sparse SMTC is used for periodic SSB measurements, and the OD-SSB SMTC is used for OD-SSB measurements.

[0317] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art will understand that the embodiments of this disclosure are not limited to the described order of actions, because according to the embodiments of this disclosure, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art will understand that the embodiments described in the specification are all optional embodiments.

[0318] Figure 6 is a schematic diagram of a synchronization signal transmitting device provided in an embodiment of this disclosure. This device is applied to a network device. As shown in Figure 6, the device includes, but is not limited to, a first transmitting unit 61 and a second transmitting unit 62, as detailed below:

[0319] The first transmitting unit 61 is used to transmit the first synchronization reference signal of the energy-saving cell to the terminal device on demand and / or periodically transmit the second synchronization reference signal of the energy-saving cell;

[0320] The second transmitting unit 62 is configured to transmit measurement configuration to the terminal device; wherein the measurement configuration includes at least one of the following:

[0321] One or more sets of parameters for the first measurement time window, one or more sets of parameters for the second measurement time window, and one set of parameters for the third measurement time window;

[0322] The first measurement time window is used for measuring the energy-saving cell when the first synchronization reference signal is activated; the second measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is changed; and the third measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is not changed or when the first synchronization reference signal is activated.

[0323] In some embodiments, the first sending unit 61 is configured to perform any of the following:

[0324] Send the first synchronization reference signal of the energy-saving community to the terminal equipment as needed;

[0325] Send the first synchronization reference signal of the energy-saving cell to the terminal equipment on demand and send the second synchronization reference signal of the energy-saving cell periodically;

[0326] The system sends the first synchronization reference signal of the energy-saving cell to the terminal equipment on demand, sends the second synchronization reference signal of the energy-saving cell periodically, and sends the system information of the energy-saving cell periodically.

[0327] In some embodiments, the device further includes: a centralized unit and a distributed unit;

[0328] The centralized unit is used to send energy-saving instruction information to the distribution unit before the first sending unit 61 sends the first synchronization reference signal of the energy-saving cell to the terminal device on demand and / or periodically sends the second synchronization reference signal of the energy-saving cell. The energy-saving instruction information is used to instruct the distribution unit to send the first synchronization reference signal of the energy-saving cell on demand.

[0329] The distributed unit is used to identify energy-saving communities based on energy-saving indication information.

[0330] In some embodiments, the energy-saving indication information is also used to indicate at least one of the following:

[0331] The distribution unit of the network device is instructed to periodically send the second synchronization reference signal for the energy-saving cell;

[0332] The distribution unit of the network device is instructed to periodically send system information about the energy-saving community.

[0333] In some embodiments, when the energy-saving indication information instructs the distribution unit of the network device to periodically send the second synchronization reference signal of the energy-saving cell, the energy-saving indication information is also used to indicate that the second synchronization reference signal is located in the synchronization grid.

[0334] In some embodiments, the measurement configuration further includes at least one of the following:

[0335] One or more sets of parameters of the first synchronization reference signal;

[0336] One or more sets of parameters for the second synchronization reference signal;

[0337] Each set of parameters of the first synchronization reference signal includes at least one of the following: transmission period, transmission frequency, beam, downlink transmission power, and time position;

[0338] Each set of parameters for the second synchronization reference signal includes the transmission period.

[0339] In some embodiments, each set of parameters of the first synchronization reference signal further includes a configuration identifier of the first synchronization reference signal; each set of parameters of the second synchronization reference signal further includes a configuration identifier of the second synchronization reference signal.

[0340] In some embodiments, when the measurement configuration includes multiple sets of parameters for a first measurement time window, a set of parameters for the first measurement time window corresponds to a set of parameters for the first synchronization reference signal.

[0341] In the case where the measurement configuration includes multiple sets of parameters for the second measurement time window, one set of parameters for the second measurement time window corresponds to one set of parameters for the second synchronization reference signal.

[0342] In some embodiments, the device further includes:

[0343] The third transmitting unit is used to transmit a second synchronization reference signal adjustment signaling to the terminal device. The second synchronization reference signal adjustment signaling includes a configuration identifier of the second synchronization reference signal.

[0344] In some embodiments, the device further includes:

[0345] The fourth sending unit is used to send a first synchronization reference signal activation signaling to the terminal device. The first synchronization reference signal activation signaling includes a configuration identifier of the first synchronization reference signal.

[0346] In some embodiments, the device further includes:

[0347] The fifth sending unit is used to send the first synchronization reference signal to the terminal device to activate the signaling.

[0348] In some embodiments, the frequency of the first synchronization reference signal is the same as the frequency of the second synchronization reference signal;

[0349] The first measurement time window is configured with the second measurement time window or the third measurement time window through the same measurement configuration; wherein, the measurement configuration includes:

[0350] The frequencies of the first and second synchronization reference signals, the parameters of the first measurement time window, and at least one of the following: the parameters of the second measurement time window and the parameters of the third measurement time window.

[0351] In some embodiments, the frequency of the first synchronization reference signal is different from or the same as the frequency of the second synchronization reference signal;

[0352] The first measurement time window is configured through the first measurement configuration, and the second measurement time window and / or the third measurement time window are configured through the second measurement configuration;

[0353] The first measurement configuration includes the frequency of the first synchronization reference signal and the parameters of the first measurement time window; the second measurement configuration includes the frequency of the second synchronization reference signal and at least one of the following: the parameters of the second measurement time window and the parameters of the third measurement time window.

[0354] In some embodiments, the first synchronization reference signal includes a first synchronization signal block SSB, and the second synchronization reference signal includes a second SSB.

[0355] The measurement configuration includes at least one of the following:

[0356] The first synchronous broadcast block measures the parameters of the timing configuration SMTC, the parameters of the second SMTC, and the parameters of the third SMTC;

[0357] The first SMTC is used to measure energy-saving cells when the first SSB is activated; the second SMTC is used to measure energy-saving cells when the transmission period of the second SSB is changed; and the third SMTC is used to measure energy-saving cells when the transmission period of the second SSB is not changed or when the first SSB is activated.

[0358] In some embodiments, the frequency of the first SSB is the same as the frequency of the second SSB;

[0359] The first SMTC is configured with the second SMTC or the third SMTC through the same measurement configuration; wherein, the measurement configuration includes:

[0360] The frequencies of the first SSB and the second SSB, the parameters of the first SMTC, and at least one of the following: the parameters of the second SMTC, and the parameters of the third SMTC.

[0361] In some embodiments, the frequency of the first SSB is different from or the same as the frequency of the second SSB;

[0362] The first SMTC is configured through a first measurement configuration, and the second SMTC and / or the third SMTC is configured through a second measurement configuration;

[0363] The first measurement configuration includes the frequency of the first SSB and the parameters of the first SMTC; the second measurement configuration includes the frequency of the second SSB and at least one of the following: the parameters of the second SMTC and the parameters of the third SMTC.

[0364] For details of the various embodiments of the synchronization signal transmitting device shown in Figure 6, please refer to the various embodiments of the synchronization signal transmitting method shown in Figure 1. To avoid repetition, they will not be described again.

[0365] Figure 7 is a schematic diagram of a synchronization signal receiving device provided in an embodiment of this disclosure. This device is applied to a terminal device. As shown in Figure 7, the device includes, but is not limited to, a first receiving unit 71 and a second receiving unit 72, as detailed below:

[0366] The first receiving unit 71 is configured to receive a measurement configuration sent by the network device, the measurement configuration including at least one of the following:

[0367] One or more sets of parameters for the first measurement time window, one or more sets of parameters for the second measurement time window, and one set of parameters for the third measurement time window;

[0368] The first measurement time window is used for measuring the energy-saving cell when the first synchronization reference signal is activated; the second measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is changed; and the third measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is not changed or when the first synchronization reference signal is activated.

[0369] The second receiving unit 72 is used to receive the first synchronization reference signal of the energy-saving cell sent on demand by the network device and / or the second synchronization reference signal of the energy-saving cell sent periodically.

[0370] In some embodiments, the device further includes:

[0371] A measurement unit is used to measure the energy-saving cell based on a measurement configuration and at least one of the following: a first synchronization reference signal and a second synchronization reference signal.

[0372] In some embodiments, the device further includes:

[0373] The third receiving unit is used to receive the second synchronization reference signal adjustment signaling sent by the network device. The second synchronization reference signal adjustment signaling includes the configuration identifier of the second synchronization reference signal.

[0374] In some embodiments, the measuring unit is used for:

[0375] The second synchronization reference signal of the energy-saving community is measured based on the second measurement time window.

[0376] In some embodiments, the measurement unit measures the second synchronization reference signal of the energy-saving cell based on a second measurement time window, including:

[0377] The second synchronization reference signal of the energy-saving community is measured based on a set of parameters corresponding to the second measurement time window of the configuration identifier.

[0378] In some embodiments, the measuring unit is further configured to:

[0379] Measurements of the energy-saving cell will cease if the period of the second synchronization reference signal corresponding to the configuration identifier is infinite, or if an indication is received from the network device to stop sending the second synchronization reference signal.

[0380] In some embodiments, the device further includes:

[0381] The fourth receiving unit is used to receive the first synchronization reference signal activation signaling sent by the network device. The first synchronization reference signal activation signaling includes the configuration identifier of the first synchronization reference signal.

[0382] In some embodiments, the measuring unit is used for:

[0383] The first synchronization reference signal of the energy-saving community is measured based on the first measurement time window or the third measurement time window.

[0384] In some embodiments, the measurement unit measures the first synchronization reference signal of the energy-saving cell based on a first measurement time window or a third measurement time window, including:

[0385] The first synchronization reference signal of the energy-saving community is measured based on a set of parameters corresponding to the first measurement time window of the configuration identifier.

[0386] In some embodiments, the measurement unit measures the first synchronization reference signal of the energy-saving cell based on a first measurement time window or a third measurement time window, including:

[0387] When the measurement configuration includes one or more sets of parameters for a first measurement time window, the first synchronization reference signal of the energy-saving cell is measured based on the first measurement time window;

[0388] If the measurement configuration does not include one or more sets of parameters for the first measurement time window, the first synchronization reference signal of the energy-saving cell is measured based on the third measurement time window.

[0389] In some embodiments, the measuring unit is further configured to:

[0390] Upon receiving a deactivation instruction for the first synchronization reference signal sent by the network device, the measurement of the first synchronization reference signal of the energy-saving community based on the first measurement time window or the third measurement time window is stopped.

[0391] In some embodiments, the first synchronization reference signal includes a first SSB, and the second synchronization reference signal includes a second SSB;

[0392] The measurement configuration includes at least one of the following:

[0393] Parameters of the first SMTC, parameters of the second SMTC, and parameters of the third SMTC;

[0394] The first SMTC is used to measure energy-saving cells when the first SSB is activated; the second SMTC is used to measure energy-saving cells when the transmission period of the second SSB is changed; and the third SMTC is used to measure energy-saving cells when the transmission period of the second SSB is not changed or when the first SSB is activated.

[0395] In some embodiments, the measuring unit is further configured to:

[0396] Upon receiving the second synchronization reference signal adjustment signaling, stop measuring the energy-saving cell or measure the energy-saving cell based on the second SMTC;

[0397] Upon receiving the activation signaling of the first synchronization reference signal, the energy-saving cell is measured based on the first SMTC or the third SMTC.

[0398] In some embodiments, the measuring unit is further configured to:

[0399] Upon receiving the first synchronization reference signal deactivation signaling, stop measuring the energy-saving cell based on the first SMTC or the third SMTC.

[0400] For details of the various embodiments of the synchronization signal receiving device shown in Figure 7, please refer to the various embodiments of the synchronization signal receiving method shown in Figure 2. To avoid repetition, they will not be described again.

[0401] This disclosure also provides a processor-readable storage medium storing a program for causing a processor to execute steps of various embodiments of the method for transmitting or receiving a synchronization signal. The processor-readable storage medium can be any available medium or data storage device accessible to the processor, including but not limited to magnetic storage (e.g., floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND flash), solid-state drives (SSDs)).

[0402] Figure 8 is a schematic diagram of a network device provided in an embodiment of this disclosure. As shown in Figure 8, the network device provided in this embodiment includes a memory 81, a transceiver 82, and a processor 83.

[0403] Memory 81 is used to store computer programs; transceiver 82 is used to send and receive data under the control of the processor; processor 83 is used to read the computer program from the memory and execute it.

[0404] Send the first synchronization reference signal of the energy-saving cell to the terminal equipment as needed and / or periodically send the second synchronization reference signal of the energy-saving cell;

[0405] Send measurement configuration to the terminal device; wherein the measurement configuration includes at least one of the following:

[0406] One or more sets of parameters for the first measurement time window, one or more sets of parameters for the second measurement time window, and one set of parameters for the third measurement time window;

[0407] The first measurement time window is used for measuring the energy-saving cell when the first synchronization reference signal is activated; the second measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is changed; and the third measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is not changed or when the first synchronization reference signal is activated.

[0408] In some embodiments, sending a first synchronization reference signal for an energy-saving cell to a terminal device on demand and / or periodically sending a second synchronization reference signal for an energy-saving cell includes any one of the following:

[0409] Send the first synchronization reference signal of the energy-saving community to the terminal equipment as needed;

[0410] Send the first synchronization reference signal of the energy-saving cell to the terminal equipment on demand and send the second synchronization reference signal of the energy-saving cell periodically;

[0411] The system sends the first synchronization reference signal of the energy-saving cell to the terminal equipment on demand, sends the second synchronization reference signal of the energy-saving cell periodically, and sends the system information of the energy-saving cell periodically.

[0412] In some embodiments, before sending the first synchronization reference signal of the energy-saving cell to the terminal device on demand and / or periodically sending the second synchronization reference signal of the energy-saving cell, the processor 83 is further configured to:

[0413] The centralized unit of the network device sends energy-saving instruction information to the distributed unit of the network device. The energy-saving instruction information is used to instruct the distributed unit of the network device to send the first synchronization reference signal of the energy-saving cell as needed.

[0414] The distribution unit of the network equipment identifies energy-saving zones based on energy-saving indication information.

[0415] In some embodiments, the energy-saving indication information is also used to indicate at least one of the following:

[0416] The distribution unit of the network device is instructed to periodically send the second synchronization reference signal for the energy-saving cell;

[0417] The distribution unit of the network device is instructed to periodically send system information about the energy-saving community.

[0418] In some embodiments, when the energy-saving indication information instructs the distribution unit of the network device to periodically send the second synchronization reference signal of the energy-saving cell, the energy-saving indication information is also used to indicate that the second synchronization reference signal is located in the synchronization grid.

[0419] In some embodiments, the measurement configuration further includes at least one of the following:

[0420] One or more sets of parameters of the first synchronization reference signal;

[0421] One or more sets of parameters for the second synchronization reference signal;

[0422] Each set of parameters of the first synchronization reference signal includes at least one of the following: transmission period, transmission frequency, beam, downlink transmission power, and time position;

[0423] Each set of parameters for the second synchronization reference signal includes the transmission period.

[0424] In some embodiments, each set of parameters of the first synchronization reference signal further includes a configuration identifier of the first synchronization reference signal; each set of parameters of the second synchronization reference signal further includes a configuration identifier of the second synchronization reference signal.

[0425] In some embodiments, when the measurement configuration includes multiple sets of parameters for a first measurement time window, a set of parameters for the first measurement time window corresponds to a set of parameters for the first synchronization reference signal.

[0426] In the case where the measurement configuration includes multiple sets of parameters for the second measurement time window, one set of parameters for the second measurement time window corresponds to one set of parameters for the second synchronization reference signal.

[0427] In some embodiments, the processor 83 is further configured to:

[0428] Send a second synchronization reference signal adjustment signaling to the terminal device. The second synchronization reference signal adjustment signaling includes the configuration identifier of the second synchronization reference signal.

[0429] In some embodiments, the processor 83 is further configured to:

[0430] Send a first synchronization reference signal activation signaling to the terminal device. The first synchronization reference signal activation signaling includes the configuration identifier of the first synchronization reference signal.

[0431] In some embodiments, the processor 83 is further configured to:

[0432] Send the first synchronization reference signal to the terminal device to activate the signaling.

[0433] In some embodiments, the frequency of the first synchronization reference signal is the same as the frequency of the second synchronization reference signal;

[0434] The first measurement time window is configured with the second measurement time window or the third measurement time window through the same measurement configuration; wherein, the measurement configuration includes:

[0435] The frequencies of the first and second synchronization reference signals, the parameters of the first measurement time window, and at least one of the following: the parameters of the second measurement time window and the parameters of the third measurement time window.

[0436] In some embodiments, the frequency of the first synchronization reference signal is different from or the same as the frequency of the second synchronization reference signal;

[0437] The first measurement time window is configured through the first measurement configuration, and the second measurement time window and / or the third measurement time window are configured through the second measurement configuration;

[0438] The first measurement configuration includes the frequency of the first synchronization reference signal and the parameters of the first measurement time window; the second measurement configuration includes the frequency of the second synchronization reference signal and at least one of the following: the parameters of the second measurement time window and the parameters of the third measurement time window.

[0439] In some embodiments, the first synchronization reference signal includes a first synchronization signal block SSB, and the second synchronization reference signal includes a second SSB.

[0440] The measurement configuration includes at least one of the following:

[0441] The first synchronous broadcast block measures the parameters of the timing configuration SMTC, the parameters of the second SMTC, and the parameters of the third SMTC;

[0442] The first SMTC is used to measure energy-saving cells when the first SSB is activated; the second SMTC is used to measure energy-saving cells when the transmission period of the second SSB is changed; and the third SMTC is used to measure energy-saving cells when the transmission period of the second SSB is not changed or when the first SSB is activated.

[0443] In some embodiments, the frequency of the first SSB is the same as the frequency of the second SSB;

[0444] The first SMTC is configured with the second SMTC or the third SMTC through the same measurement configuration; wherein, the measurement configuration includes:

[0445] The frequencies of the first SSB and the second SSB, the parameters of the first SMTC, and at least one of the following: the parameters of the second SMTC, and the parameters of the third SMTC.

[0446] In some embodiments, the frequency of the first SSB is different from or the same as the frequency of the second SSB;

[0447] The first SMTC is configured through a first measurement configuration, and the second SMTC and / or the third SMTC is configured through a second measurement configuration;

[0448] The first measurement configuration includes the frequency of the first SSB and the parameters of the first SMTC; the second measurement configuration includes the frequency of the second SSB and at least one of the following: the parameters of the second SMTC and the parameters of the third SMTC.

[0449] For details of the various embodiments of the network devices shown in Figure 8, please refer to the various embodiments of the synchronization signal transmission method shown in Figure 1. To avoid repetition, they will not be described again.

[0450] Figure 9 is a schematic diagram of a terminal device provided in an embodiment of this disclosure. As shown in Figure 9, the terminal device provided in this embodiment includes a memory 91, a transceiver 92, and a processor 93.

[0451] Memory 91 is used to store computer programs; transceiver 92 is used to send and receive data under the control of the processor; processor 93 is used to read the computer program from the memory and execute it.

[0452] Receive measurement configuration sent by the network device, the measurement configuration including at least one of the following:

[0453] One or more sets of parameters for the first measurement time window, one or more sets of parameters for the second measurement time window, and one set of parameters for the third measurement time window;

[0454] The first measurement time window is used for measuring the energy-saving cell when the first synchronization reference signal is activated; the second measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is changed; and the third measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is not changed or when the first synchronization reference signal is activated.

[0455] Receive the first synchronization reference signal of the energy-saving cell sent on demand by the network device and / or the second synchronization reference signal of the energy-saving cell sent periodically.

[0456] In some embodiments, the processor 93 is further configured to:

[0457] The energy-saving community is measured based on the measurement configuration and at least one of the following: a first synchronization reference signal and a second synchronization reference signal.

[0458] In some embodiments, the processor 93 is further configured to:

[0459] The network device receives a second synchronization reference signal adjustment signaling message, which includes a configuration identifier for the second synchronization reference signal.

[0460] In some embodiments, the energy-saving cell is measured based on a measurement configuration and at least one of the following: a first synchronization reference signal and a second synchronization reference signal, including:

[0461] The second synchronization reference signal of the energy-saving community is measured based on the second measurement time window.

[0462] In some embodiments, the second synchronization reference signal of the energy-saving cell is measured based on a second measurement time window, including:

[0463] The second synchronization reference signal of the energy-saving community is measured based on a set of parameters corresponding to the second measurement time window of the configuration identifier.

[0464] In some embodiments, the processor 93 is further configured to:

[0465] Measurements of the energy-saving cell will cease if the period of the second synchronization reference signal corresponding to the configuration identifier is infinite, or if an indication is received from the network device to stop sending the second synchronization reference signal.

[0466] In some embodiments, the processor 93 is further configured to:

[0467] The network device receives a first synchronization reference signal activation signaling message, which includes a configuration identifier for the first synchronization reference signal.

[0468] In some embodiments, the energy-saving cell is measured based on a measurement configuration and at least one of the following: a first synchronization reference signal and a second synchronization reference signal, including:

[0469] The first synchronization reference signal of the energy-saving community is measured based on the first measurement time window or the third measurement time window.

[0470] In some embodiments, the first synchronization reference signal of the energy-saving cell is measured based on a first measurement time window or a third measurement time window, including:

[0471] The first synchronization reference signal of the energy-saving community is measured based on a set of parameters corresponding to the first measurement time window of the configuration identifier.

[0472] In some embodiments, the first synchronization reference signal of the energy-saving cell is measured based on a first measurement time window or a third measurement time window, including:

[0473] When the measurement configuration includes one or more sets of parameters for a first measurement time window, the first synchronization reference signal of the energy-saving cell is measured based on the first measurement time window;

[0474] If the measurement configuration does not include one or more sets of parameters for the first measurement time window, the first synchronization reference signal of the energy-saving cell is measured based on the third measurement time window.

[0475] In some embodiments, the processor 93 is further configured to:

[0476] Upon receiving a deactivation instruction for the first synchronization reference signal sent by the network device, the measurement of the first synchronization reference signal of the energy-saving community based on the first measurement time window or the third measurement time window is stopped.

[0477] In some embodiments, the first synchronization reference signal includes a first SSB, and the second synchronization reference signal includes a second SSB;

[0478] The measurement configuration includes at least one of the following:

[0479] Parameters of the first SMTC, parameters of the second SMTC, and parameters of the third SMTC;

[0480] The first SMTC is used to measure energy-saving cells when the first SSB is activated; the second SMTC is used to measure energy-saving cells when the transmission period of the second SSB is changed; and the third SMTC is used to measure energy-saving cells when the transmission period of the second SSB is not changed or when the first SSB is activated.

[0481] In some embodiments, the processor 93 is further configured to:

[0482] Upon receiving the second synchronization reference signal adjustment signaling, stop measuring the energy-saving cell or measure the energy-saving cell based on the second SMTC;

[0483] Upon receiving the activation signaling of the first synchronization reference signal, the energy-saving cell is measured based on the first SMTC or the third SMTC.

[0484] In some embodiments, the processor 93 is further configured to:

[0485] Upon receiving the first synchronization reference signal deactivation signaling, stop measuring the energy-saving cell based on the first SMTC or the third SMTC.

[0486] For details of the various embodiments of the terminal device shown in Figure 9, please refer to the various embodiments of the synchronization signal receiving method shown in Figure 2. To avoid repetition, they will not be described again.

[0487] In the above embodiments, the transceiver is used to receive and transmit data under the control of the processor. The bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors (represented by the processor) and memory (represented by the memory). The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver can be multiple components, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, including wireless channels, wired channels, optical fibers, etc. The processor is responsible for managing the bus architecture and general processing, and the memory can store data used by the processor during operation.

[0488] A processor can be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above methods can be completed through integrated logic circuits in the processor's hardware or through software instructions. The processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. A general-purpose processor can be a microprocessor or any conventional processor.

[0489] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0490] Those skilled in the art will understand that although some embodiments described herein include certain features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of this disclosure and form different embodiments.

[0491] Those skilled in the art will understand that the descriptions of the various embodiments have different focuses, and for parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0492] Although embodiments of the present disclosure have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present disclosure, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

A method for transmitting a synchronization signal, applied to a network device, the method comprising: Send the first synchronization reference signal of the energy-saving cell to the terminal equipment as needed and / or periodically send the second synchronization reference signal of the energy-saving cell; Send a measurement configuration to the terminal device; wherein the measurement configuration includes at least one of the following: One or more sets of parameters for the first measurement time window, one or more sets of parameters for the second measurement time window, and one set of parameters for the third measurement time window; Wherein, the first measurement time window is used for measuring the energy-saving cell when the first synchronization reference signal is activated; the second measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is changed; and the third measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is not changed or when the first synchronization reference signal is activated. The method of claim 1, wherein, The method of sending the first synchronization reference signal of the energy-saving cell to the terminal device on demand and / or periodically sending the second synchronization reference signal of the energy-saving cell includes any one of the following: Send the first synchronization reference signal of the energy-saving community to the terminal equipment as needed; Send the first synchronization reference signal of the energy-saving cell to the terminal equipment on demand and send the second synchronization reference signal of the energy-saving cell periodically; The system sends the first synchronization reference signal of the energy-saving cell to the terminal equipment on demand, sends the second synchronization reference signal of the energy-saving cell periodically, and sends the system information of the energy-saving cell periodically. The method of claim 1, wherein, Before sending the first synchronization reference signal of the energy-saving cell to the terminal device on demand and / or periodically sending the second synchronization reference signal of the energy-saving cell, the method further includes: The centralized unit of the network device sends energy-saving instruction information to the distributed unit of the network device. The energy-saving instruction information is used to instruct the distributed unit of the network device to send the first synchronization reference signal of the energy-saving cell as needed. The distribution unit of the network device determines the energy-saving cell based on the energy-saving indication information. The method of claim 3, wherein, The energy-saving indication information is also used to indicate at least one of the following: The distribution unit of the network device is instructed to periodically send the second synchronization reference signal of the energy-saving cell; The distribution unit of the network device is instructed to periodically send system information of the energy-saving cell. The method of claim 4, wherein, When the energy-saving indication information instructs the distribution unit of the network device to periodically send the second synchronization reference signal of the energy-saving cell, the energy-saving indication information is also used to indicate that the second synchronization reference signal is located in the synchronization grid. The method of claim 1, wherein, The measurement configuration also includes at least one of the following: One or more sets of parameters of the first synchronization reference signal; One or more sets of parameters of the second synchronization reference signal; Wherein, each set of parameters of the first synchronization reference signal includes at least one of the following: transmission period, transmission frequency, beam, downlink transmission power, and time position; Each set of parameters for the second synchronization reference signal includes the transmission period. The method of claim 6, wherein, Each set of parameters for the first synchronization reference signal also includes a configuration identifier for the first synchronization reference signal; each set of parameters for the second synchronization reference signal also includes a configuration identifier for the second synchronization reference signal. The method according to claim 6 or 7, wherein When the measurement configuration includes multiple sets of parameters for the first measurement time window, one set of parameters for the first measurement time window corresponds to one set of parameters for the first synchronization reference signal. When the measurement configuration includes multiple sets of parameters for the second measurement time window, one set of parameters for the second measurement time window corresponds to one set of parameters for the second synchronization reference signal. The method of claim 1, wherein, The method further includes: Send a second synchronization reference signal adjustment signaling to the terminal device, the second synchronization reference signal adjustment signaling including the configuration identifier of the second synchronization reference signal. The method of claim 7, wherein, The method further includes: Send a first synchronization reference signal activation signaling to the terminal device, wherein the first synchronization reference signal activation signaling includes the configuration identifier of the first synchronization reference signal. The method of claim 7, wherein, The method further includes: Send a first synchronization reference signal to the terminal device to deactivate the signaling. The method of claim 1, wherein, The frequency of the first synchronization reference signal is the same as the frequency of the second synchronization reference signal; The first measurement time window is configured with the second measurement time window or the third measurement time window through the same measurement configuration; wherein, the measurement configuration includes: The frequencies of the first synchronization reference signal and the second synchronization reference signal, the parameters of the first measurement time window, and at least one of the following: the parameters of the second measurement time window, and the parameters of the third measurement time window. The method of claim 1, wherein, The frequency of the first synchronization reference signal is either different from or the same as the frequency of the second synchronization reference signal; The first measurement time window is configured through a first measurement configuration, and the second measurement time window and / or the third measurement time window are configured through a second measurement configuration; The first measurement configuration includes the frequency of the first synchronization reference signal and the parameters of the first measurement time window; the second measurement configuration includes the frequency of the second synchronization reference signal and at least one of the following: the parameters of the second measurement time window and the parameters of the third measurement time window. The method of claim 1, wherein, The first synchronization reference signal includes a first synchronization signal block (SSB), and the second synchronization reference signal includes a second SSB. The measurement configuration includes at least one of the following: The first synchronous broadcast block measures the parameters of the timing configuration SMTC, the parameters of the second SMTC, and the parameters of the third SMTC; The first SMTC is used to measure the energy-saving cell when the first SSB is activated; the second SMTC is used to measure the energy-saving cell when the transmission period of the second SSB is changed; and the third SMTC is used to measure the energy-saving cell when the transmission period of the second SSB is not changed or the first SSB is activated. The method of claim 14, wherein, The frequency of the first SSB is the same as the frequency of the second SSB; The first SMTC is configured with the second SMTC or the third SMTC through the same measurement configuration; wherein, the measurement configuration includes: The frequencies of the first SSB and the second SSB, the parameters of the first SMTC, and at least one of the following: the parameters of the second SMTC, and the parameters of the third SMTC. The method of claim 14, wherein, The frequency of the first SSB is either different from or the same as the frequency of the second SSB; The first SMTC is configured using a first measurement configuration, and the second SMTC and / or the third SMTC is configured using a second measurement configuration; The first measurement configuration includes the frequency of the first SSB and the parameters of the first SMTC; the second measurement configuration includes the frequency of the second SSB and at least one of the following: the parameters of the second SMTC and the parameters of the third SMTC. A method for receiving a synchronization signal, applied to a terminal device, the method comprising: Receive measurement configuration sent by a network device, the measurement configuration including at least one of the following: One or more sets of parameters for the first measurement time window, one or more sets of parameters for the second measurement time window, and one set of parameters for the third measurement time window; Wherein, the first measurement time window is used for measuring the energy-saving cell when the first synchronization reference signal is activated; the second measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is changed; and the third measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is not changed or when the first synchronization reference signal is activated. Receive the first synchronization reference signal of the energy-saving cell sent on demand by the network device and / or the second synchronization reference signal of the energy-saving cell sent periodically. The method of claim 17, wherein, The method further includes: The energy-saving cell is measured based on the measurement configuration and at least one of the following: the first synchronization reference signal and the second synchronization reference signal. The method according to claim 17 or 18, wherein The method further includes: The network device receives a second synchronization reference signal adjustment signaling message, the second synchronization reference signal adjustment signaling message including the configuration identifier of the second synchronization reference signal. The method of claim 18, wherein, The measurement of the energy-saving cell based on the measurement configuration and at least one of the following: the first synchronization reference signal and the second synchronization reference signal, includes: The second synchronization reference signal of the energy-saving community is measured based on the second measurement time window. The method of claim 20, wherein, The measurement of the second synchronization reference signal of the energy-saving community based on the second measurement time window includes: The second synchronization reference signal of the energy-saving community is measured based on a set of parameters corresponding to the second measurement time window of the configuration identifier. The method of claim 19, wherein, The method further includes: Measurements of the energy-saving cell are stopped when the period of the second synchronization reference signal corresponding to the configuration identifier is infinite, or when an indication is received from the network device to stop sending the second synchronization reference signal. The method according to claim 18, wherein, The method further includes: The network device receives a first synchronization reference signal activation signaling message, which includes a configuration identifier of the first synchronization reference signal. The method according to claim 23, wherein, The measurement of the energy-saving cell based on the measurement configuration and at least one of the following: the first synchronization reference signal and the second synchronization reference signal, includes: The first synchronization reference signal of the energy-saving community is measured based on the first measurement time window or the third measurement time window. The method according to claim 24, wherein, The measurement of the first synchronization reference signal of the energy-saving cell based on the first measurement time window or the third measurement time window includes: The first synchronization reference signal of the energy-saving community is measured based on a set of parameters corresponding to the first measurement time window of the configuration identifier. The method according to claim 24, wherein, The measurement of the first synchronization reference signal of the energy-saving cell based on the first measurement time window or the third measurement time window includes: When the measurement configuration includes one or more sets of parameters for the first measurement time window, the first synchronization reference signal of the energy-saving cell is measured based on the first measurement time window; If the measurement configuration does not include one or more sets of parameters for the first measurement time window, the first synchronization reference signal of the energy-saving cell is measured based on the third measurement time window. The method according to claim 24, wherein, The method further includes: Upon receiving a deactivation instruction for the first synchronization reference signal sent by the network device, the measurement of the first synchronization reference signal of the energy-saving cell based on the first measurement time window or the third measurement time window is stopped. The method according to claim 17, wherein, The first synchronization reference signal includes a first SSB, and the second synchronization reference signal includes a second SSB; The measurement configuration includes at least one of the following: Parameters of the first SMTC, parameters of the second SMTC, and parameters of the third SMTC; Wherein, the first SMTC is used to measure the energy-saving cell when the first SSB is activated; the second SMTC is used to measure the energy-saving cell when the transmission period of the second SSB is changed; and the third SMTC is used to measure the energy-saving cell when the transmission period of the second SSB is not changed or when the first SSB is activated. The method according to claim 28, wherein, The method further includes: Upon receiving a second synchronization reference signal adjustment command, stop measuring the energy-saving cell or measure the energy-saving cell based on the second SMTC; Upon receiving the activation signaling of the first synchronization reference signal, the energy-saving cell is measured based on the first SMTC or the third SMTC. The method of claim 29, wherein, The method further includes: Upon receiving the first synchronization reference signal deactivation signaling, the measurement of the energy-saving cell based on the first SMTC or the third SMTC is stopped. A synchronization signal transmitting device, applied to a network device, the device comprising: The first transmitting unit is used to transmit the first synchronization reference signal of the energy-saving cell to the terminal device on demand and / or periodically transmit the second synchronization reference signal of the energy-saving cell; The second sending unit is configured to send a measurement configuration to the terminal device; wherein the measurement configuration includes at least one of the following: One or more sets of parameters for the first measurement time window, one or more sets of parameters for the second measurement time window, and one set of parameters for the third measurement time window; Wherein, the first measurement time window is used for measuring the energy-saving cell when the first synchronization reference signal is activated; the second measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is changed; and the third measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is not changed or when the first synchronization reference signal is activated. A synchronization signal receiving device, applied to a terminal device, the device comprising: The first receiving unit is configured to receive a measurement configuration sent by a network device, wherein the measurement configuration includes at least one of the following: One or more sets of parameters for the first measurement time window, one or more sets of parameters for the second measurement time window, and one set of parameters for the third measurement time window; Wherein, the first measurement time window is used for measuring the energy-saving cell when the first synchronization reference signal is activated; the second measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is changed; and the third measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is not changed or when the first synchronization reference signal is activated. The second receiving unit is used to receive the first synchronization reference signal of the energy-saving cell sent on demand by the network device and / or the second synchronization reference signal of the energy-saving cell sent periodically. A network device, wherein, The network device includes a memory, a transceiver, and a processor; The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and execute them. Send the first synchronization reference signal of the energy-saving cell to the terminal equipment as needed and / or periodically send the second synchronization reference signal of the energy-saving cell; Send a measurement configuration to the terminal device; wherein the measurement configuration includes at least one of the following: One or more sets of parameters for the first measurement time window, one or more sets of parameters for the second measurement time window, and one set of parameters for the third measurement time window; Wherein, the first measurement time window is used for measuring the energy-saving cell when the first synchronization reference signal is activated; the second measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is changed; and the third measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is not changed or when the first synchronization reference signal is activated. A terminal device, wherein, The terminal device includes a memory, a transceiver, and a processor; The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and execute them. Receive measurement configuration sent by a network device, the measurement configuration including at least one of the following: One or more sets of parameters for the first measurement time window, one or more sets of parameters for the second measurement time window, and one set of parameters for the third measurement time window; Wherein, the first measurement time window is used for measuring the energy-saving cell when the first synchronization reference signal is activated; the second measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is changed; and the third measurement time window is used for measuring the energy-saving cell when the transmission period of the second synchronization reference signal is not changed or when the first synchronization reference signal is activated. Receive the first synchronization reference signal of the energy-saving cell sent on demand by the network device and / or the second synchronization reference signal of the energy-saving cell sent periodically. A processor-readable storage medium, wherein, The processor-readable storage medium stores a program for causing the processor to perform a method for transmitting a synchronization signal as described in any one of claims 1 to 16 or a method for receiving a synchronization signal as described in any one of claims 17 to 30.

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