Signal transmission method and device

Abstract

The invention provides a signal transmission method and device, and aims to solve the problem that a terminal in an idle or inactive state cannot acquire a system message of a neighbor cell. The method provided by the embodiment of the invention comprises the following steps: acquiring wake-up signal configuration information, the wake-up signal configuration information is used for configuring at least one of a wake-up signal aiming at a specific cell, a wake-up signal aiming at a specific frequency, a wake-up signal aiming at a cell in a specific radio access network notification area RNA, a wake-up signal aiming at a specific cell group and a wake-up signal aiming at a cell in a specific area range; and sending a wake-up signal to a target cell according to the wake-up signal configuration information, the wake-up signal being used for requesting the target cell to send a system information block SIB1 message.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to a signal transmission method and apparatus. Background Art

[0002] In the related art, a user equipment (UE) in a connected state can obtain the system information block 1 (SIB1) message of other cells by forwarding the system messages of other cells through a cell in which the UE is in a radio resource control (RRC) connected state. However, this is not applicable to UEs in an idle / inactive state because these UEs have no RRC connection with the network. Therefore, the network cannot send the system messages of neighbor cells to the terminal through RRC messages. Summary of the Invention

[0003] The purpose of this application is to provide a signal transmission method and apparatus to solve the problem that a terminal in an idle or inactive state cannot obtain the system messages of neighbor cells.

[0004] To achieve the above purpose, this application provides a signal transmission method, which is executed by a terminal. The method includes:

[0005] Obtain wake-up signal configuration information, where the wake-up signal configuration information is used to configure at least one of a wake-up signal for a specific cell, a wake-up signal for a specific frequency, a wake-up signal for cells within a specific radio access network notification area (RNA), a wake-up signal for a specific cell group, and a wake-up signal for cells within a specific area range;

[0006] According to the wake-up signal configuration information, send a wake-up signal to a target cell, where the wake-up signal is used to request the target cell to send a system information block SIB1 message.

[0007] Optionally, the obtaining the wake-up signal configuration information includes:

[0008] Obtain the wake-up signal configuration information through at least one of pre-configured information, the system messages of the current resident cell, the radio resource control (RRC) messages of the current resident cell, the system messages of the historical resident cell, and the RRC messages of the historical resident cell;

[0009] Wherein, the RRC message is an RRC message obtained when the terminal is in a connected state.

[0010] Optionally, the wake-up signal or the related parameters of the wake-up signal are used to indicate at least one of the following:

[0011] The transmission period of the SIB1 message;

[0012] The number of repetitions of the SIB1 message within one transmission period;

[0013] The number of repetitions of the transmission period of the SIB1 message;

[0014] The SIB1 message is sent or stopped from being sent;

[0015] Wherein, the relevant parameters of the wake-up signal are pre-configured by the network-side device or are agreed upon by the protocol.

[0016] Optionally, the relevant parameters of the wake-up signal include at least one of the time-domain resource of the wake-up signal, the frequency-domain resource of the wake-up signal, the sequence information of the wake-up signal, and the transmission period of the wake-up signal.

[0017] Optionally, sending a wake-up signal to a target cell according to the wake-up signal configuration information includes:

[0018] When a preset condition is met, sending a wake-up signal to the target cell according to the wake-up signal configuration information;

[0019] Wherein, the preset condition includes at least one of the following:

[0020] The channel quality of the cell where the terminal is camped is lower than and / or equal to a first threshold;

[0021] The signaling quality of the target cell measured by the terminal is higher than and / or equal to a second threshold;

[0022] The target cell meets the conditions for cell selection or reselection by the terminal;

[0023] The cell where the terminal is camped enables the terminal to send a wake-up signal to a specific cell or a specific cell group or a cell in a specific RAN area or a cell in a specific area range;

[0024] The terminal has uplink data to transmit or the terminal is ready to access the network;

[0025] The terminal needs to update the SIB1 message of the wake-up cell;

[0026] The terminal receives a system message update indication related to the wake-up cell.

[0027] Optionally, the wake-up signal includes at least one of a random access RA scrambling code, a sounding reference signal SRS, an SRS positioning reference signal for positioning, and a demodulation reference signal DMRS.

[0028] Optionally, after sending the wake-up signal to the target cell, it further includes:

[0029] Receive the SIB1 message sent by the target cell.

[0030] Optionally, the SIB1 message satisfies at least one of the following:

[0031] The transmission period of the SIB1 message is less than or equal to the transmission period indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value;

[0032] The number of repetitions of the SIB1 message within one transmission period is higher than or equal to the number of repetitions of the SIB1 message within the transmission period indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value;

[0033] The number of repetitions of the transmission period of the SIB1 message is higher than or equal to the number of repetitions of the transmission period of the SIB1 message indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value.

[0034] The number of transmissions of the SIB1 message is higher than or equal to the number of transmissions of the SIB1 message indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value.

[0035] Optionally, after sending the wake-up signal to the target cell, it further includes:

[0036] Obtain the synchronization broadcast block SSB sent by the target cell, where the SSB is sent by the target cell based on the wake-up signal.

[0037] Optionally, after sending the wake-up signal to the target cell, it further includes:

[0038] Start a first timer, where the first timer is used to determine whether the target cell fails to wake up.

[0039] Optionally, the method of this embodiment of the present application further includes:

[0040] If the system information block SIB1 and / or the synchronization broadcast block SSB sent by the target cell are not detected within the running time of the first timer, it is determined that the target cell fails to wake up.

[0041] Optionally, the method of this embodiment of the present application further includes:

[0042] In the case of determining that the target cell fails to wake up, select a wake-up cell other than the target cell among multiple wake-up cells to perform the wake-up process.

[0043] Optionally, the method of this embodiment of the present application further includes:

[0044] If the System Information Block 1 (SIB1) and / or Synchronization Signal Block (SSB) sent by the target cell are detected within the running time of the first timer, stop the first timer.

[0045] Optionally, the method according to the embodiment of the present application further includes:

[0046] Within a preset time period, do not determine a cell with a wake-up failure as a wake-up cell and / or do not send a wake-up signal to a cell with a wake-up failure.

[0047] The embodiment of the present application further provides a signal transmission method, which is executed by a first network-side device. The method includes:

[0048] Send wake-up signal configuration information to a terminal. The wake-up signal configuration information is used to configure at least one of a wake-up signal for a specific cell, a wake-up signal for a specific frequency, a wake-up signal for a cell within a specific Radio Network Notification Area (RNA), a wake-up signal for a specific cell group, and a wake-up signal for a cell within a specific area range. The wake-up signal is used to request the target cell to send a System Information Block 1 (SIB1) message.

[0049] Optionally, the sending of the wake-up signal configuration information to the terminal includes:

[0050] Obtain the wake-up signal configuration information through at least one of pre-configured information, the system message of the current resident cell, the Radio Resource Control (RRC) message of the current resident cell, the system message of the historical resident cell, and the RRC message of the historical resident cell.

[0051] Optionally, before sending the wake-up signal configuration information to the terminal, it further includes:

[0052] Obtain the wake-up signal configuration information through at least one of the Xn interface, the F1 interface, and the core network interface.

[0053] Alternatively, configure the wake-up signal configuration information for neighbor cells through at least one of the Xn interface, the F1 interface, and the core network interface.

[0054] Optionally, the wake-up signal or the related parameters of the wake-up signal are used to indicate at least one of the following:

[0055] The transmission period of the SIB1 message;

[0056] The number of repetitions of the SIB1 message within one transmission period;

[0057] The number of repetitions of the transmission period of the SIB1 message;

[0058] The sending or stopping of the SIB1 message.

[0059] Optionally, the relevant parameters of the wake-up signal include at least one of the time-domain resource of the wake-up signal, the frequency-domain resource of the wake-up signal, the sequence information of the wake-up signal, and the transmission period of the wake-up signal.

[0060] Optionally, the wake-up signal includes at least one of a random access (RA) scrambling code, a sounding reference signal (SRS), an SRS positioning reference signal for positioning, and a demodulation reference signal (DMRS).

[0061] An embodiment of this application also provides a signal transmission method, which is executed by a second network-side device. The method includes:

[0062] Obtain a wake-up signal;

[0063] According to the wake-up signal, send a system information block (SIB1) message to a terminal.

[0064] Optionally, the wake-up signal or the relevant parameters of the wake-up signal are used to indicate at least one of the following:

[0065] The transmission period of the SIB1 message;

[0066] The number of repetitions of the SIB1 message within one transmission period;

[0067] The number of repetitions of the transmission period of the SIB1 message;

[0068] The SIB1 message is sent or the sending is stopped.

[0069] Optionally, the relevant parameters of the wake-up signal include at least one of the time-domain resource of the wake-up signal, the frequency-domain resource of the wake-up signal, the sequence information of the wake-up signal, and the transmission period of the wake-up signal.

[0070] Optionally, the SIB1 message sent to the terminal satisfies at least one of the following:

[0071] The transmission period of the SIB1 message is less than or equal to the transmission period indicated by the wake-up signal or the relevant parameters of the wake-up signal or a predefined value;

[0072] The number of repetitions of the SIB1 message within one transmission period is higher than or equal to the number of repetitions of the SIB1 message within the transmission period indicated by the wake-up signal or the relevant parameters of the wake-up signal or a predefined value;

[0073] The number of repetitions of the transmission period of the SIB1 message is higher than or equal to the number of repetitions of the transmission period of the SIB1 message indicated by the wake-up signal or the relevant parameters of the wake-up signal or a predefined value;

[0074] The transmission times of the SIB1 message are higher than or equal to the transmission times of the SIB1 message indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value.

[0075] Optionally, after obtaining the wake-up signal, the method further includes:

[0076] Transmitting an SSB.

[0077] Optionally, before obtaining the wake-up signal, the method further includes:

[0078] Transmitting wake-up signal configuration information through at least one of the Xn interface, the F1 interface, and the core network interface;

[0079] Alternatively, receiving the wake-up signal configuration information configured by a neighboring cell or the core network through at least one of the Xn interface, the F1 interface, and the core network interface.

[0080] An embodiment of the present application further provides a signal transmission device, including a memory, a transceiver, and a processor;

[0081] The memory is used to store a computer program; the transceiver is used to transmit and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations:

[0082] Obtaining wake-up signal configuration information, where the wake-up signal configuration information is used to configure at least one of a wake-up signal for a specific cell, a wake-up signal for a specific frequency, a wake-up signal for a cell within a specific radio access network notification area (RNA), a wake-up signal for a specific cell group, and a wake-up signal for a cell within a specific area range;

[0083] According to the wake-up signal configuration information, sending a wake-up signal to a target cell, where the wake-up signal is used to request the target cell to send a system information block SIB1 message.

[0084] Optionally, the processor further implements the following steps:

[0085] Obtaining the wake-up signal configuration information through at least one of pre-configured information, the system message of the current resident cell, the radio resource control (RRC) message of the current resident cell, the system message of the historical resident cell, and the RRC message of the historical resident cell;

[0086] Wherein, the RRC message is the RRC message obtained when the terminal is in the connected state.

[0087] Optionally, the wake-up signal or the related parameters of the wake-up signal are used to indicate at least one of the following:

[0088] The transmission period of the SIB1 message;

[0089] The repetition times of the SIB1 message within one transmission period;

[0090] The repetition times of the transmission period of the SIB1 message;

[0091] The SIB1 message is sent or stopped from being sent;

[0092] Wherein, the relevant parameters of the wake-up signal are pre-configured by the network-side device or are protocol-agreed.

[0093] Optionally, the relevant parameters of the wake-up signal include at least one of the time-domain resource of the wake-up signal, the frequency-domain resource of the wake-up signal, the sequence information of the wake-up signal, and the transmission period of the wake-up signal.

[0094] Optionally, the processor further implements the following steps:

[0095] When a preset condition is satisfied, a wake-up signal is sent to the target cell according to the wake-up signal configuration information;

[0096] Wherein, the preset condition includes at least one of the following:

[0097] The channel quality of the cell where the terminal camps is lower than and / or equal to a first threshold;

[0098] The signaling quality of the target cell measured by the terminal is higher than and / or equal to a second threshold;

[0099] The target cell meets the conditions for terminal cell selection or reselection;

[0100] The cell where the terminal camps enables the terminal to send a wake-up signal to a specific cell or a specific cell group or a cell in a specific RAN area or a cell in a specific area range;

[0101] The terminal has uplink data to transmit or the terminal is ready to access the network;

[0102] The terminal needs to update the SIB1 message of the wake-up cell;

[0103] The terminal receives a system message update indication related to the wake-up cell.

[0104] An embodiment of the present application further provides a signal transmission device, including a memory, a transceiver, and a processor;

[0105] The memory is used to store a computer program; the transceiver is used to transmit and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations:

[0106] Send wake-up signal configuration information to a terminal, where the wake-up signal configuration information is used to configure at least one of a wake-up signal for a specific cell, a wake-up signal for a specific frequency, a wake-up signal for cells within a specific radio access network notification area (RNA), a wake-up signal for a specific cell group, and a wake-up signal for cells within a specific area range, and the wake-up signal is used to request a target cell to send a system information block SIB1 message.

[0107] Optionally, the processor further implements the following steps:

[0108] Obtain the wake-up signal configuration information through at least one of pre-configured information, system messages of the current resident cell, radio resource control (RRC) messages of the current resident cell, system messages of historical resident cells, and RRC messages of historical resident cells.

[0109] An embodiment of the present application also provides a signal transmission device, including a memory, a transceiver, and a processor;

[0110] The memory is used to store a computer program; the transceiver is used to transmit and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations:

[0111] Obtain a wake-up signal;

[0112] According to the wake-up signal, send a system information block SIB1 message to the terminal.

[0113] Optionally, the wake-up signal or related parameters of the wake-up signal are used to indicate at least one of the following:

[0114] The transmission period of the SIB1 message;

[0115] The number of repetitions of the SIB1 message within one transmission period;

[0116] The number of repetitions of the transmission period of the SIB1 message;

[0117] The SIB1 message is sent or stopped from being sent.

[0118] An embodiment of the present application also provides a signal transmission device, including:

[0119] A first acquisition unit, configured to acquire wake-up signal configuration information, where the wake-up signal configuration information is used to configure at least one of a wake-up signal for a specific cell, a wake-up signal for a specific frequency, a wake-up signal for cells within a specific radio access network notification area (RNA), a wake-up signal for a specific cell group, and a wake-up signal for cells within a specific area range;

[0120] A first sending unit, configured to send a wake-up signal to a target cell according to the wake-up signal configuration information, where the wake-up signal is used to request the target cell to send a System Information Block (SIB1) message.

[0121] An embodiment of this application further provides a signal transmission device, including:

[0122] A second sending unit, configured to send wake-up signal configuration information to a terminal, where the wake-up signal configuration information is used to configure at least one of a wake-up signal for a specific cell, a wake-up signal for a specific frequency, a wake-up signal for cells within a specific Radio Network Notification Area (RNA), a wake-up signal for a specific cell group, and a wake-up signal for cells within a specific regional range, and the wake-up signal is used to request a target cell to send a System Information Block (SIB1) message.

[0123] An embodiment of this application further provides a signal transmission device, including:

[0124] A second obtaining unit, configured to obtain a wake-up signal;

[0125] A third sending unit, configured to send a System Information Block (SIB1) message to a terminal according to the wake-up signal.

[0126] An embodiment of this application further provides a processor-readable storage medium storing a computer program, where the computer program is used to cause the processor to execute the steps of the signal transmission method as described above.

[0127] The above technical solution of this application has at least the following beneficial effects:

[0128] In an embodiment of this application, wake-up signal configuration information is obtained, where the wake-up signal configuration information is used to configure at least one of a wake-up signal for a specific cell, a wake-up signal for a specific frequency, a wake-up signal for cells within a specific RNA, a wake-up signal for a specific cell group, and a wake-up signal for cells within a specific regional range; according to the wake-up signal configuration information, a wake-up signal is sent to a target cell, where the wake-up signal is used to request the target cell to send a System Information Block (SIB1) message. Through the above wake-up signal configuration information, a wake-up signal can be configured for at least one cell, and the wake-up signal is used to request the cell to send SIB1. Therefore, after the wake-up signal is sent to the target cell based on the wake-up signal configuration information, the target cell can be triggered to send SIB1 to the terminal, thereby achieving the purpose of enabling a terminal in an idle or inactive state to obtain SIB1 of the target cell (which can be a neighbor cell). Description of the Drawings

[0129] Figure 1 A structural diagram of a network system to which an embodiment of this application can be applied;

[0130] Figure 2 One of the flow diagrams showing the signal transmission method according to an embodiment of the present application;

[0131] Figure 3 One of the interaction diagrams showing the signal transmission method according to an embodiment of the present application;

[0132] Figure 4 One of the flow diagrams showing the signal transmission method according to an embodiment of the present application;

[0133] Figure 5 One of the flow diagrams showing the signal transmission method according to an embodiment of the present application;

[0134] Figure 6 One of the interaction diagrams showing the signal transmission method according to an embodiment of the present application;

[0135] Figure 7 One of the structural block diagrams showing the signal transmission device according to an embodiment of the present application;

[0136] Figure 8 One of the structural block diagrams showing the signal transmission device according to an embodiment of the present application;

[0137] Figure 9 One of the module diagrams showing the signal transmission device according to an embodiment of the present application;

[0138] Figure 10 One of the module diagrams showing the signal transmission device according to an embodiment of the present application;

[0139] Figure 11 One of the module diagrams showing the signal transmission device according to an embodiment of the present application. Detailed implementation manners

[0140] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0141] The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of this application described here, for example, can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0142] In the embodiments of this application, the term "and / or" describes the association relationship of associated objects and indicates that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. In the embodiments of this application, the term "plural" refers to two or more, and other quantifiers are similar.

[0143] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0144] Figure 1 The block diagram of a wireless communication system to which the embodiments of this application can be applied is shown. The wireless communication system includes a terminal device 11 and a network-side device (or network device) 12. Among them, the terminal device 11 can also be called a terminal or a user terminal (User Equipment, UE). It should be noted that the specific type of the terminal 11 is not limited in the embodiments of this application. The network-side device 12 can be a base station or a core network. It should be noted that in the embodiments of this application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0145] To enable those skilled in the art to better understand the embodiments of this application, the following description is made first.

[0146] (1) The function of SIB1;

[0147] The SIB1 message contains the basic information for the UE to access the cell, such as the Public Land Mobile Network (PLMN), access control information, Random Access Channel (RACH) configuration information, etc. The SIB1 message is repeatedly sent at a certain period.

[0148] (2) The basic concept of the R19 on-demand SIB1 scenario;

[0149] In the related art, the network always sends the SIB1 message at a predefined period. The SIB1 message includes the basic information for the UE to access this cell, such as PLMN and RA configuration information. To save energy on the network side, the base station can turn off the transmission of the SIB1 message, which also causes the UE unable to camp on this cell and has an impact on cell coverage and network capacity.

[0150] When the UE is in the idle / inactive state, if a certain cell is in the energy-saving state and does not send the SIB1 message, but the UE detects this cell based on the SSB information of the cell and wants to access this cell, then this cell needs to start the transmission of SBI1 based on a certain trigger mechanism so that the UE can camp on the corresponding cell.

[0151] Next, in combination with the accompanying drawings, the signal transmission method provided by the embodiments of the present application will be described in detail through some embodiments and their application scenarios.

[0152] As Figure 2 shown, the embodiments of the present application provide a signal transmission method, which is executed by a terminal. The method includes:

[0153] Step 201: Obtain wake-up signal configuration information, where the wake-up signal configuration information is used to configure at least one of the wake-up signal for a specific cell, the wake-up signal for a specific frequency, the wake-up signal for the cells within a specific Radio Access Network (RAN)-based Notification Area (RNA), the wake-up signal for a specific cell group, and the wake-up signal for the cells within a specific Area scope.

[0154] In the embodiments of the present application, the wake-up signal configuration information can configure the wake-up signal for a specific cell, a specific frequency, a specific RNA, a specific cell group, and / or a specific Area scope, that is, the wake-up signal can be configured for at least one cell through the above wake-up signal configuration information.

[0155] Step 202: Send a wake-up signal to the target cell according to the wake-up signal configuration information, where the wake-up signal is used to request the target cell to send a System Information Block SIB1 message.

[0156] The target cell includes at least one of the above-mentioned specific cell, the cell corresponding to a specific frequency, the cell within a specific RAN, the cell within the above-mentioned specific cell, and / or the cell within a specific Area scope.

[0157] After receiving the above wake-up signal, the target cell can send the SIB1 message to the terminal based on the wake-up signal.

[0158] In the embodiments of the present application, wake-up signal configuration information is obtained, where the wake-up signal configuration information is used to configure at least one of a wake-up signal for a specific cell, a wake-up signal for a specific frequency, a wake-up signal for a cell within a specific RNA, a wake-up signal for a specific cell group, and a wake-up signal for a cell within a specific area range; according to the wake-up signal configuration information, a wake-up signal is sent to the target cell, and the wake-up signal is used to request the target cell to send a System Information Block SIB1 message. Through the above wake-up signal configuration information, a wake-up signal can be configured for at least one cell, and the wake-up signal is used to request the cell to send SIB1. Therefore, after sending the wake-up signal to the target cell based on the wake-up signal configuration information, the target cell can be triggered to send SIB1 to the terminal, thereby achieving the purpose of enabling a terminal in an idle or inactive state to obtain SIB1 of the target cell (which can be a neighbor cell).

[0159] As an implementation manner, the obtaining of the wake-up signal configuration information includes:

[0160] Obtain the wake-up signal configuration information through at least one of pre-configuration information, the system message of the currently resident cell, the Radio Resource Control RRC message of the currently resident cell, the system message of the historically resident cell, and the RRC message of the historically resident cell;

[0161] Wherein, the RRC message is the RRC message obtained when the terminal is in the connected state.

[0162] Optionally, the above RRC message includes at least one of an RRC reconfiguration message and an RRC Release message.

[0163] Exemplarily, the network-side device can configure a wake-up signal for a specific cell or a wake-up signal for all cells within a specific RAN or a wake-up signal for a specific cell group through pre-configuration information;

[0164] Alternatively, the network - side device may broadcast a wake - up signal for all cells within a specific cell, a specific cell group, a specific RNA, or a specific Area scope through a system message.

[0165] Alternatively, when the terminal is in the RRC connected state, the network - side device may configure a wake - up signal for all cells within a specific cell, a specific cell group, or a specific RNA through an RRC message.

[0166] Optionally, the wake - up signal or the related parameters of the wake - up signal are used to indicate at least one of the following:

[0167] The transmission period of the SIB1 message;

[0168] The number of repetitions of the SIB1 message within one transmission period;

[0169] The number of repetitions of the transmission period of the SIB1 message;

[0170] The SIB1 message is sent or stopped from being sent;

[0171] Among them, the related parameters of the wake - up signal are pre - configured by the network - side device or are agreed upon by the protocol.

[0172] Optionally, the wake - up signal or the related parameters of the wake - up signal are further used to indicate at least one of the following:

[0173] The transmission period of the SSB message;

[0174] The number of repetitions of the SSB message within one transmission period;

[0175] The number of repetitions of the transmission period of the SSB message;

[0176] The SSB message is sent or stopped from being sent.

[0177] In the embodiments of the present application, the transmission of the SIB1 and / or SSB, as well as the transmission parameters of the SIB1 and / or SSB (such as transmission resources, transmission periods, etc.) can be indicated by the wake - up signal or the related parameters of the wake - up signal.

[0178] As an implementation manner, the related parameters of the wake - up signal include at least one of the time - domain resources of the wake - up signal, the frequency - domain resources of the wake - up signal, the sequence information of the wake - up signal, and the transmission period of the wake - up signal.

[0179] For example, when the time domain resource of the wake-up signal is resource 1, it is used to indicate that the transmission period of the SIB1 message is period 1, and when the time domain resource of the wake-up signal is resource 2, it is used to indicate that the transmission period of the SIB1 message is period 2. For another example, when the sequence information of the wake-up signal is sequence 1, it is used to indicate that the SIB message is sent, and when the sequence information of the wake-up signal is sequence 2, it is used to indicate that the SIB message stops sending.

[0180] Optionally, sending a wake-up signal to a target cell according to the wake-up signal configuration information includes:

[0181] When a preset condition is met, sending a wake-up signal to the target cell according to the wake-up signal configuration information;

[0182] The preset condition includes at least one of the following:

[0183] The channel quality of the cell where the terminal resides is lower than and / or equal to the first threshold;

[0184] The signaling quality of the target cell measured by the terminal is higher than and / or equal to the second threshold;

[0185] The target cell meets the conditions for terminal cell selection or reselection;

[0186] The camped cell of the terminal enables the terminal to send a wake-up signal to a specific cell or a specific cell group or a cell in a specific RAN area or a cell in a specific area range;

[0187] The terminal has uplink data to transmit or is ready to access the network;

[0188] The terminal needs to update the SIB1 message of the wake-up cell;

[0189] The terminal receives a system message update indication related to the wake-up cell.

[0190] In an embodiment of the present application, when the above-mentioned preset conditions are met, it may indicate that the terminal needs to reside in or access the above-mentioned target cell. In this case, a wake-up signal is sent to the target cell based on the wake-up signal configuration information, so that the target cell sends SIB1, thereby facilitating the terminal to access or reside in the cell.

[0191] Optionally, the wake-up signal includes at least one of a random access (RA) scrambling code, a sounding reference signal (SRS), an SRS positioning reference signal for positioning, and a demodulation reference signal (DMRS).

[0192] In the embodiments of the present application, at least one of the time domain resources, frequency domain resources, transmission periods, etc. of RA, SRS, and DMRS can explicitly or implicitly indicate at least one of the following:

[0193] The transmission period of the SIB1 message;

[0194] The number of repetitions of the SIB1 message within one transmission period;

[0195] The number of repetitions of the transmission period of the SIB1 message;

[0196] The SIB1 message is sent or stopped from being sent;

[0197] The SSB message is sent or stopped from being sent;

[0198] The transmission period of the SSB message;

[0199] The number of repetitions of the SSB message within one transmission period;

[0200] The number of repetitions of the transmission period of the SSB message.

[0201] Optionally, after sending the wake-up signal to the target cell, it further includes:

[0202] Receiving the SIB1 message sent by the target cell.

[0203] Here, by receiving the SIB1 message sent by the target cell, it is possible to camp on or access the target cell.

[0204] Optionally, the SIB1 message satisfies at least one of the following:

[0205] The transmission period of the SIB1 message is less than or equal to the transmission period indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value;

[0206] The number of repetitions of the SIB1 message within one transmission period is higher than or equal to the number of repetitions of the SIB1 message within the transmission period indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value; for example, if the number of repetitions of the SIB1 message within the transmission period indicated by the wake-up signal or the related parameters of the wake-up signal is 3 times, then the number of repetitions of the above SIB1 message within one transmission period can be 4 times, 5 times, etc.;

[0207] The repetition times of the transmission period of the SIB1 message are higher than or equal to the repetition times of the transmission period of the SIB1 message indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value; for example, if the repetition times of the transmission period of the SIB1 message indicated by the wake-up signal or the related parameters of the wake-up signal are 2 times, then the repetition times of the transmission period of the SIB1 message can be specifically 3 times, that is, the SIB1 message is sent within 3 transmission periods.

[0208] The number of times of sending the SIB1 message is higher than or equal to the number of times of sending the SIB1 message indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value.

[0209] In the embodiments of the present application, after the network-side device obtains the wake-up signal, it sends the SIB1 message based on the wake-up signal or the transmission parameters of the SIB1 message indicated by the wake-up signal (such as the transmission period, the repetition times within one transmission period, the repetition times of the transmission period of the SIB1 message, etc.), so as to ensure that the transmission parameters of the sent SIB1 message can meet the transmission parameters indicated by the terminal.

[0210] Optionally, after sending the wake-up signal to the target cell, it further includes:

[0211] Obtain the synchronization broadcast block SSB sent by the target cell, and the SSB is sent by the target cell based on the wake-up signal.

[0212] In the embodiments of the present application, after the target cell receives the wake-up signal, if the SSB has not been sent yet, the sending of the SSB can be triggered.

[0213] Optionally, if the target cell is a cell without SSB (SSB-less), then send the SSB and SIB1 after receiving the wake-up signal.

[0214] Optionally, after sending the wake-up signal to the target cell, it further includes:

[0215] Start a first timer, and the first timer is used to determine whether the target cell fails to wake up.

[0216] Here, based on the above first timer, it is convenient for the terminal to determine whether the target wake-up cell fails to wake up, so as to facilitate subsequent corresponding processing operations.

[0217] Optionally, the method of the embodiments of the present application further includes:

[0218] If the system information block SIB1 and / or the synchronization broadcast block SSB sent by the target cell are not detected within the running time of the first timer, it is determined that the target cell fails to wake up.

[0219] In the embodiment of the present application, after the target wake-up cell receives the wake-up signal, it needs to send SIB1 and / or SSB based on the wake-up signal. If the terminal does not receive SIB1 and / or SSB within a certain period of time, it is determined that the wake-up of the target cell fails. By starting this timer, the duration for which the terminal waits for the wake-up cell to send SIB1 and / or SSB can be controlled.

[0220] Optionally, the method of the embodiment of the present application further includes:

[0221] In the case where it is determined that the wake-up of the target cell fails, select a wake-up cell other than the target cell among multiple wake-up cells to perform the wake-up process.

[0222] Here, in the case where the target wake-up cell fails to wake up, the target wake-up cell may not be successfully woken up within a certain period of time. For example, the channel quality of the target wake-up cell is relatively low within a certain period of time. Therefore, by selecting a wake-up cell other than the target wake-up cell to perform the wake-up process, it can effectively avoid access failure or residence failure caused by inappropriate wake-up processes, improve the success rate of subsequent access, and reduce the power consumption of the terminal.

[0223] Optionally, the method of the embodiment of the present application further includes:

[0224] If SIB1 and / or SSB sent by the target cell are detected during the running time of the first timer, stop the first timer.

[0225] Here, if SIB1 and / or SSB sent by the target wake-up cell are detected during the running time of the first timer, it is determined that the target wake-up cell wakes up successfully, and the first timer is stopped.

[0226] Optionally, the method of the embodiment of the present application further includes:

[0227] Within a preset period of time, do not determine a cell with a wake-up failure as a wake-up cell and / or do not send a wake-up signal to a cell with a wake-up failure.

[0228] Here, a cell with a wake-up failure may not be successfully woken up within a certain period of time. For example, the channel quality of a cell with a wake-up failure is relatively low within a certain period of time. Therefore, by not determining a cell with a wake-up failure as a wake-up cell and / or not sending a wake-up signal to a cell with a wake-up failure within a preset period of time, it can effectively avoid access failure or residence failure caused by inappropriate wake-up processes, improve the success rate of subsequent access, and reduce the power consumption of the terminal.

[0229] The signal transmission method of the present application will be described below with reference to embodiments.

[0230] Embodiment 1: The UE obtains the configuration information of the wake-up signal and sends a wake-up signal when wake-up is required. After the network side obtains the wake-up signal, according to the indication information of the wake-up signal, it sends the SIB1 message in the corresponding cell.

[0231] As Figure 3 shown, it includes:

[0232] Step 1: The idle / inactive UE obtains the configuration information of the wake-up signal.

[0233] Specifically, through the pre-configuration information, the system message of the resident cell or the RRC message when previously in the connected state, the wake-up signal configuration information specifically includes at least one of the following:

[0234] The wake-up signal for a specific cell configured by the pre-configuration message, or the wake-up signal for all cells of a specific RNA, or the wake-up signal for a specific cell group;

[0235] The wake-up signal for a specific cell broadcast by the system message;

[0236] The wake-up signal for all cells of a specific RNA broadcast by the system message

[0237] The wake-up signal for all cells of a specific area scope broadcast by the system message

[0238] The wake-up signal for a specific cell group broadcast by the system message

[0239] The wake-up signal for a specific cell configured by the RRC message or the RRC release message when the UE is in the connected state

[0240] The wake-up signal for all cells of a specific RNA configured by the RRC message or the RRC release message when the UE is in the connected state

[0241] The wake-up signal for a specific cell group configured by the RRC message or the RRC release message when the UE is in the connected state.

[0242] Furthermore, the wake-up signal or the related parameters of the wake-up signal are used to indicate at least one of the following:

[0243] The transmission period of the SIB1 message;

[0244] The number of repetitions of the SIB1 message within one transmission period;

[0245] The number of repetitions of the transmission period of the SIB1 message;

[0246] The sending or stopping of the SIB1 message.

[0247] Step 2: When the preset conditions are met or based on the internal implementation of the UE, decide to send a wake-up signal to the target cell or the base station;

[0248] Among them, the preset conditions include at least one of the following:

[0249] The channel quality of the cell where the terminal is camped is lower than and / or equal to the first threshold;

[0250] The signaling quality of the target cell measured by the terminal is higher than and / or equal to the second threshold;

[0251] The target cell meets the conditions for cell selection or reselection of the terminal;

[0252] The cell where the terminal is camped enables the terminal to send a wake-up signal to a specific cell or a specific cell group or a cell in a specific RAN area or a cell within a specific area range;

[0253] The terminal has uplink data to transmit or the terminal is ready to access the network;

[0254] The terminal needs to update the SIB1 message of the wake-up cell;

[0255] The terminal receives a system message update indication related to the wake-up cell.

[0256] Step 3: After the gNB obtains the wake-up signal of the UE, send the SIB1 message.

[0257] Furthermore, when at least one of the following conditions is met, send the SIB1 message.

[0258] The gNB senses (receives) the wake-up signal sent by the UE;

[0259] The gNB senses that the wake-up signal sent by the UE is for this cell, or this RNA, or for this cell group;

[0260] The wake-up signal of the UE received by the gNB is higher than a threshold.

[0261] Furthermore, the gNB sends the SIB1 message according to the information of the obtained wake-up signal, specifically as follows:

[0262] The transmission period of the SIB1 message is less than or equal to the transmission period indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value;

[0263] The number of repetitions of the SIB1 message within one transmission period is higher than or equal to the number of repetitions of the SIB1 message within the transmission period indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value;

[0264] The repetition count of the transmission period of the SIB1 message is higher than or equal to the repetition count of the transmission period of the SIB1 message indicated by the wake-up signal or the relevant parameter of the wake-up signal, or a predefined value.

[0265] The number of transmissions of the SIB1 message is higher than or equal to the number of transmissions of the SIB1 message indicated by the wake-up signal or the relevant parameter of the wake-up signal, or a predefined value.

[0266] Step 4: The UE reads the SIB1 message and, based on the SIB1 message, selects to camp on or access the cell.

[0267] In the above embodiment, after the gNB obtains the wake-up message of the SIB1, if the SSB message has not been sent yet, the sending of the SSB message can be triggered.

[0268] The wake-up signal in the above embodiment can be one or a combination of a RA scrambling code, SRS, and DMRS signal.

[0269] The time-frequency resource or transmission period in which at least one of the RA scrambling code, SRS, and DMRS is located can be used to explicitly or implicitly represent the indication information of the UE for the SIB1 message. The indication information is used to indicate the gNB to send the SIB1 message, send the SIB1 message and the SSB message, send a certain signal combination message, and / or information such as the resources and periods of the sending of these messages.

[0270] In the embodiment of the present application, a UE in the idle / inactive state can wake up the surrounding cells to send the SIB1 message, so that the UE can camp on or access the cell, avoiding the UE entering the connected state and then obtaining the relevant information, and reducing the access delay of the UE to the cell.

[0271] As Figure 4 shown, the embodiment of the present application further provides a signal transmission method, which is executed by a first network-side device, and the first network-side device can be specifically a base station. The method includes:

[0272] Step 401: Send wake-up signal configuration information to the terminal. The wake-up signal configuration information is used to configure at least one of a wake-up signal for a specific cell, a wake-up signal for a specific frequency, a wake-up signal for cells within a specific radio access network notification area (RNA), a wake-up signal for a specific cell group, and a wake-up signal for cells within a specific area range. The wake-up signal is used to request the target cell to send the system information block SIB1 message.

[0273] In the embodiments of the present application, by sending the above wake-up signal configuration information to the terminal, the terminal can obtain at least one of the wake-up signal for a specific cell, the wake-up signal for a specific frequency, the wake-up signal for a cell within a specific RNA, the wake-up signal for a specific cell group, and the wake-up signal for cells within a specific area range based on the wake-up signal configuration information. The wake-up signal is used to request the cell to send SIB1, so that after the terminal sends the wake-up signal to the target cell based on the wake-up signal configuration information, the target cell can be triggered to send SIB1 to the terminal, thereby achieving the purpose of enabling the terminal in the idle or inactive state to obtain the SIB1 of the target cell (which can be a neighbor cell).

[0274] Optionally, the sending of the wake-up signal configuration information to the terminal includes:

[0275] Obtaining the wake-up signal configuration information through at least one of pre-configuration information, the system message of the currently camped cell, the radio resource control (RRC) message of the currently camped cell, the system message of the historically camped cell, and the RRC message of the historically camped cell.

[0276] Optionally, the above RRC message includes at least one of an RRC reconfiguration message and an RRC release message.

[0277] Exemplarily, the network-side device can configure the wake-up signal for a specific cell or the wake-up signal for all cells within a specific RAN or the wake-up signal for a specific cell group through pre-configuration information;

[0278] Or, the network-side device can broadcast the wake-up signal for a specific cell, a specific cell group, a specific RNA, or all cells within a specific Area scope through the system message;

[0279] Or, when the terminal is in the RRC connected state, the network-side device can configure the wake-up signal for a specific cell, a specific cell group, or all cells within a specific RNA through the RRC message.

[0280] Optionally, before sending the wake-up signal configuration information to the terminal, it further includes:

[0281] Obtaining the wake-up signal configuration information through at least one of the Xn interface, the F1 interface, and the core network interface.

[0282] Or, configuring the wake-up signal configuration information for the neighbor cell through at least one of the Xn interface, the F1 interface, and the core network interface.

[0283] When the above wake-up signal configuration information is configured by the first network-side device itself, the wake-up signal configuration information is configured for a neighbor cell (the second network-side device) through at least one of the Xn interface, the F1 interface, and the core network interface.

[0284] Optionally, the wake-up signal or the related parameters of the wake-up signal are used to indicate at least one of the following:

[0285] The transmission period of the SIB1 message;

[0286] The number of repetitions of the SIB1 message within one transmission period;

[0287] The number of repetitions of the transmission period of the SIB1 message;

[0288] The sending or stopping of the SIB1 message.

[0289] Optionally, the related parameters of the wake-up signal include at least one of the time-domain resource of the wake-up signal, the frequency-domain resource of the wake-up signal, the sequence information of the wake-up signal, and the transmission period of the wake-up signal.

[0290] Optionally, the wake-up signal includes at least one of a random access RA scrambling code, a sounding reference signal SRS, an SRS positioning reference signal for positioning, and a demodulation reference signal DMRS.

[0291] In the embodiments of the present application, by sending the above wake-up signal configuration information to the terminal, the terminal can obtain at least one of the wake-up signal for a specific cell, the wake-up signal for a specific frequency, the wake-up signal for a cell within a specific RNA, the wake-up signal for a specific cell group, and the wake-up signal for cells within a specific area range based on the wake-up signal configuration information. This wake-up signal is used to request the cell to send SIB1. Thus, after the terminal sends the wake-up signal to the target cell based on the wake-up signal configuration information, it can trigger the target cell to send SIB1 to the terminal, thereby achieving the purpose of enabling a terminal in the idle or inactive state to obtain the SIB1 of the target cell (which can be a neighbor cell).

[0292] As Figure 5 shown, the embodiments of the present application also provide a signal transmission method, which is executed by a second network-side device. The second network-side device is specifically a base station, and the second network-side device is a neighbor base station of the first network-side device. The method includes:

[0293] Step 501: Obtain a wake-up signal, which is used to request the sending of SIB1.

[0294] Step 502: According to the wake-up signal, send a system information block SIB1 message to the terminal.

[0295] Specifically, when at least one of the following conditions is met, an SIB1 message is sent to the terminal.

[0296] The second network-side device determines that the wake-up signal is a wake-up signal for this cell, this RNA, or this cell group;

[0297] The signal quality of the wake-up signal is higher than a preset threshold.

[0298] In the embodiments of the present application, a wake-up signal is obtained; according to the wake-up signal, a system information block SIB1 message is sent to the terminal, so that a terminal in an idle or inactive state can obtain the SIB1 of the second network-side device.

[0299] Optionally, the wake-up signal or related parameters of the wake-up signal are used to indicate at least one of the following:

[0300] The transmission period of the SIB1 message;

[0301] The number of repetitions of the SIB1 message within one transmission period;

[0302] The number of repetitions of the transmission period of the SIB1 message;

[0303] The SIB1 message is sent or stopped from being sent.

[0304] Optionally, the related parameters of the wake-up signal include at least one of the time-domain resource of the wake-up signal, the frequency-domain resource of the wake-up signal, the sequence information of the wake-up signal, and the transmission period of the wake-up signal.

[0305] Optionally, the SIB1 message sent to the terminal meets at least one of the following:

[0306] The transmission period of the SIB1 message is less than or equal to the transmission period indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value;

[0307] The number of repetitions of the SIB1 message within one transmission period is higher than or equal to the number of repetitions of the SIB1 message within the transmission period indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value;

[0308] The number of repetitions of the transmission period of the SIB1 message is higher than or equal to the number of repetitions of the transmission period of the SIB1 message indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value;

[0309] The number of transmissions of the SIB1 message is higher than or equal to the number of transmissions of the SIB1 message indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value.

[0310] Optionally, after obtaining the wake-up signal, the following steps are further included:

[0311] Transmit the SSB.

[0312] Exemplarily, after the target cell receives the wake-up signal, if the SSB has not been transmitted yet, the transmission of the SSB can be triggered.

[0313] Optionally, before obtaining the wake-up signal, the following steps are further included:

[0314] Transmit the wake-up signal configuration information through at least one of the Xn interface, F1 interface, and core network interface;

[0315] Alternatively, receive the wake-up signal configuration information configured by a neighboring cell or the core network through at least one of the Xn interface, F1 interface, and core network interface.

[0316] In the case where the wake-up signal configuration information is configured by the second network-side device itself, transmit the wake-up signal configuration information to a neighboring cell through at least one of the Xn interface, F1 interface, and core network interface.

[0317] The process of the base stations interacting with the wake-up signal configuration information is described below in conjunction with Embodiment 2.

[0318] Embodiment 2: As Figure 6 shown, it includes:

[0319] Step 0: Before gNB1 sends the wake-up signal configuration information to gNB2, obtain the request information of gNB2. This request message is used to request the transmission of the wake-up signal configuration information or to request the activation of this cell.

[0320] This step can be omitted.

[0321] Step 1: gNB1 sends the wake-up signal configuration information to gNB2.

[0322] Furthermore, the wake-up signal configuration information may further include the activation indication information of the SSB of this cell.

[0323] The wake-up signal configuration information is used to configure at least one of the wake-up signal for a specific cell, the wake-up signal for a specific frequency, the wake-up signal for the cells within a specific RNA, the wake-up signal for a specific cell group, and the wake-up signal for the cells within a specific Area scope.

[0324] Step 2: gNB1 obtains the confirmation information of gNB2.

[0325] Step 3: gNB2 broadcasts the wake-up signal configuration information.

[0326] Furthermore, gNB2 can also broadcast the activation information of the SSB of neighboring cells.

[0327] Optionally, the wake-up signal includes at least one of a Random Access (RA) scrambling code, a Sounding Reference Signal (SRS), an SRS positioning reference signal for positioning, and a Demodulation Reference Signal (DMRS).

[0328] In the embodiments of the present application, at least one of the following can be explicitly or implicitly indicated by the time domain resources, frequency domain resources, transmission period, etc. of at least one of RA, SRS, and DMRS:

[0329] The transmission period of the SIB1 message;

[0330] The number of repetitions of the SIB1 message within one transmission period;

[0331] The number of repetitions of the transmission period of the SIB1 message;

[0332] The SIB1 message is sent or stopped from being sent;

[0333] The SSB message is sent or stopped from being sent;

[0334] The transmission period of the SSB message;

[0335] The number of repetitions of the SSB message within one transmission period;

[0336] The number of repetitions of the transmission period of the SSB message.

[0337] In addition, in the case where the first network side device is a CU and the second network side device is a DU; or the first network side device is a DU and the second network side device is a CU, the process of inter-base station interaction of wake-up signal configuration information can include:

[0338] The CU sends the wake-up signal configuration information to the DU, and the DU feeds back an acknowledgment message. Or, the CU sends a request message for requesting the wake-up signal configuration information, and the CU obtains the wake-up signal configuration information from the DU.

[0339] The DU obtains the wake-up signal of the UE, sends the SIB1 message on the air interface, and notifies the CU of the relevant information of the DU being woken up and / or the UE that wakes up the DU.

[0340] Through the above solution, the purpose of configuring the wake-up signal configuration information between base stations is achieved. As a result, after the terminal sends a wake-up signal to the target cell based on the wake-up signal configuration information, the target cell can be triggered to send SIB1 to the terminal, thereby achieving the purpose of enabling the terminal in the idle or inactive state to obtain the SIB1 of the target cell (which can be a neighbor cell).

[0341] As Figure 7 shown, an embodiment of the present application provides a signal transmission device, which is applied to a terminal and includes a memory 720, a transceiver 700, and a processor 710;

[0342] The memory 720 is used to store computer programs; the transceiver 700 is used to transmit and receive data under the control of the processor 710; the processor 710 is used to read the computer programs in the memory 720 and perform the following operations:

[0343] Obtain wake-up signal configuration information, where the wake-up signal configuration information is used to configure at least one of a wake-up signal for a specific cell, a wake-up signal for a specific frequency, a wake-up signal for cells within a specific radio access network notification area RNA, a wake-up signal for a specific cell group, and a wake-up signal for cells within a specific area range;

[0344] According to the wake-up signal configuration information, send a wake-up signal to the target cell, where the wake-up signal is used to request the target cell to send a system information block SIB1 message.

[0345] Among them, in Figure 7 , the bus architecture may include any number of interconnected buses and bridges, specifically, various circuits represented by one or more processors represented by the processor 710 and a memory represented by the memory 720 are linked together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits together, which are well known in the art, so they will not be further described herein. The bus interface provides an interface. The transceiver 700 may be multiple elements, that is, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium, and these transmission mediums include wireless channels, wired channels, optical cables, etc. For different user devices, the user interface 730 may also be an interface capable of externally connecting and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

[0346] The processor 710 is responsible for managing the bus architecture and general processing, and the memory 720 can store the data used by the processor 710 when performing operations.

[0347] Optionally, the processor 710 may be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a CPLD (Complex Programmable Logic Device). The processor may also adopt a multi-core architecture.

[0348] The processor is used to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions by calling the computer program stored in the memory. The processor and the memory may also be physically separated.

[0349] Optionally, the processor also implements the following steps:

[0350] Obtain the wake-up signal configuration information through at least one of pre-configured information, system messages of the current resident cell, radio resource control (RRC) messages of the current resident cell, system messages of historical resident cells, and RRC messages of historical resident cells;

[0351] Wherein, the RRC message is the RRC message obtained when the terminal is in the connected state.

[0352] Optionally, the wake-up signal or the related parameters of the wake-up signal are used to indicate at least one of the following:

[0353] The transmission period of the SIB1 message;

[0354] The number of repetitions of the SIB1 message within one transmission period;

[0355] The number of repetitions of the transmission period of the SIB1 message;

[0356] The SIB1 message is sent or stopped from being sent;

[0357] Wherein, the related parameters of the wake-up signal are pre-configured by the network-side device or are protocol-agreed.

[0358] Optionally, the related parameters of the wake-up signal include at least one of the time-domain resource of the wake-up signal, the frequency-domain resource of the wake-up signal, the sequence information of the wake-up signal, and the transmission period of the wake-up signal.

[0359] Optionally, the processor also implements the following steps:

[0360] When the preset condition is satisfied, send a wake-up signal to the target cell according to the wake-up signal configuration information;

[0361] Among them, the preset conditions include at least one of the following:

[0362] The channel quality of the serving cell of the terminal is lower than and / or equal to a first threshold;

[0363] The signaling quality of the target cell measured by the terminal is higher than and / or equal to a second threshold;

[0364] The target cell meets the conditions for cell selection or reselection of the terminal;

[0365] The serving cell of the terminal enables the terminal to send a wake-up signal to a specific cell or a specific cell group or a cell in a specific RAN area or a cell in a specific area range;

[0366] The terminal has uplink data to transmit or the terminal is ready to access the network;

[0367] The terminal needs to update the SIB1 message of the wake-up cell;

[0368] The terminal receives a system message update indication related to the wake-up cell.

[0369] Optionally, the wake-up signal includes at least one of a random access RA scrambling code, a sounding reference signal SRS, an SRS positioning reference signal for positioning, and a demodulation reference signal DMRS.

[0370] Optionally, the processor further implements the following steps:

[0371] Receive the SIB1 message sent by the target cell.

[0372] Optionally, the SIB1 message meets at least one of the following:

[0373] The transmission period of the SIB1 message is less than or equal to the transmission period indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value;

[0374] The number of repetitions of the SIB1 message within one transmission period is higher than or equal to the number of repetitions of the SIB1 message within the transmission period indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value;

[0375] The number of repetitions of the transmission period of the SIB1 message is higher than or equal to the number of repetitions of the transmission period of the SIB1 message indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value.

[0376] The number of transmissions of the SIB1 message is higher than or equal to the number of transmissions of the SIB1 message indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value.

[0377] Optionally, the processor further implements the following steps:

[0378] Obtain a synchronization broadcast block SSB sent by the target cell, where the SSB is sent by the target cell based on the wake-up signal.

[0379] Optionally, the processor further implements the following steps:

[0380] Start a first timer, where the first timer is used to determine whether the target cell fails to wake up.

[0381] Optionally, the processor further implements the following steps:

[0382] If a system information block SIB1 or a synchronization broadcast block SSB sent by the target cell is not detected within the running time of the first timer, it is determined that the target cell fails to wake up.

[0383] Optionally, the processor further implements the following steps:

[0384] In the case of determining that the target cell fails to wake up, select a wake-up cell other than the target cell from multiple wake-up cells to perform the wake-up process.

[0385] Optionally, the processor further implements the following steps:

[0386] If an SIB1 and / or SSB sent by the target cell is detected within the running time of the first timer, stop the first timer.

[0387] Optionally, the processor further implements the following steps:

[0388] Within a preset time period, do not determine a cell that fails to wake up as a wake-up cell and / or do not send a wake-up signal to a cell that fails to wake up.

[0389] It should be noted here that the above device provided in the embodiments of the present application can implement all the method steps implemented in the method embodiments applied to the terminal, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment.

[0390] As Figure 8 shown, the embodiments of the present application further provide a signal transmission device, including a memory 820, a transceiver 800, and a processor 810;

[0391] The memory 820 is used to store a computer program; the transceiver 800 is used to transmit and receive data under the control of the processor; the processor 810 is used to read the computer program in the memory and perform the following operations:

[0392] Send wake-up signal configuration information to a terminal, where the wake-up signal configuration information is used to configure at least one of a wake-up signal for a specific cell, a wake-up signal for a specific frequency, a wake-up signal for cells within a specific radio access network notification area (RNA), a wake-up signal for a specific cell group, and a wake-up signal for cells within a specific area range, and the wake-up signal is used to request a target cell to send a system information block SIB1 message;

[0393] Alternatively, obtain a wake-up signal; and send a system information block SIB1 message to the terminal according to the wake-up signal.

[0394] Among them, in Figure 8 the bus architecture may include any number of interconnected buses and bridges, specifically, various circuits of one or more processors represented by the processor 810 and the memory represented by the memory 820 are linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, and thus will not be further described herein. The bus interface provides an interface. The transceiver 800 may be multiple components, that is, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium, and these transmission mediums include wireless channels, wired channels, optical fiber cables, and other transmission mediums. The processor 810 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 810 when performing operations.

[0395] The processor 810 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD), and the processor may also adopt a multi-core architecture.

[0396] It should be noted here that the above device provided by the embodiment of the present application can implement all the method steps implemented by the method embodiments applied to the first network-side device or the second network-side device, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment.

[0397] As Figure 9 shown, the embodiment of the present application further provides a signal transmission device, including:

[0398] The first acquisition unit 901 is configured to acquire wake-up signal configuration information, where the wake-up signal configuration information is used to configure at least one of a wake-up signal for a specific cell, a wake-up signal for a specific frequency, a wake-up signal for cells within a specific radio access network notification area (RNA), a wake-up signal for a specific cell group, and a wake-up signal for cells within a specific area range.

[0399] The first transmission unit 902 is configured to send a wake-up signal to a target cell according to the wake-up signal configuration information, where the wake-up signal is used to request the target cell to send a system information block SIB1 message.

[0400] Optionally, the first acquisition unit is configured to acquire the wake-up signal configuration information through at least one of pre-configured information, the system message of the currently camped cell, the radio resource control (RRC) message of the currently camped cell, the system message of a historical camped cell, and the RRC message of a historical camped cell.

[0401] Wherein, the RRC message is an RRC message acquired when the terminal is in the connected state.

[0402] Optionally, the wake-up signal or related parameters of the wake-up signal are used to indicate at least one of the following:

[0403] The transmission period of the SIB1 message;

[0404] The number of repetitions of the SIB1 message within one transmission period;

[0405] The number of repetitions of the transmission period of the SIB1 message;

[0406] The SIB1 message is sent or stopped from being sent;

[0407] Wherein, the related parameters of the wake-up signal are pre-configured by a network-side device or are protocol-agreed.

[0408] Optionally, the related parameters of the wake-up signal include at least one of the time-domain resource of the wake-up signal, the frequency-domain resource of the wake-up signal, the sequence information of the wake-up signal, and the transmission period of the wake-up signal.

[0409] Optionally, the first transmission unit is configured to send a wake-up signal to a target cell according to the wake-up signal configuration information when a preset condition is met.

[0410] Wherein, the preset condition includes at least one of the following:

[0411] The channel quality of the cell camped by the terminal is lower than and / or equal to a first threshold;

[0412] The signaling quality of the target cell measured by the terminal is higher than and / or equal to a second threshold.

[0413] The target cell meets the conditions for terminal cell selection or reselection;

[0414] The resident cell of the terminal enables the terminal to send a wake-up signal for a specific cell or a specific cell group or a cell in a specific RAN area or a cell in a specific area range;

[0415] The terminal has uplink data to transmit or the terminal is ready to access the network;

[0416] The terminal needs to update the SIB1 message of the wake-up cell;

[0417] The terminal receives a system message update indication related to the wake-up cell.

[0418] Optionally, the wake-up signal includes at least one of a random access RA scrambling code, a sounding reference signal SRS, an SRS positioning reference signal for positioning, and a demodulation reference signal DMRS.

[0419] Optionally, the device according to an embodiment of the present application further includes:

[0420] A first receiving unit, configured to receive the SIB1 message sent by the target cell after the first sending unit sends a wake-up signal to the target cell.

[0421] Optionally, the SIB1 message satisfies at least one of the following:

[0422] The sending period of the SIB1 message is less than or equal to the sending period indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value;

[0423] The number of repetitions of the SIB1 message within one sending period is higher than or equal to the number of repetitions of the SIB1 message within the sending period indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value;

[0424] The number of repetitions of the sending period of the SIB1 message is higher than or equal to the number of repetitions of the sending period of the SIB1 message indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value.

[0425] The number of times the SIB1 message is sent is higher than or equal to the number of times the SIB1 message is sent indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value.

[0426] Optionally, the device according to an embodiment of the present application further includes:

[0427] A third acquisition unit, configured to acquire a Synchronization Signal and Broadcast Block (SSB) sent by the target cell after the first transmission unit sends a wake-up signal to the target cell, where the SSB is sent by the target cell based on the wake-up signal.

[0428] Optionally, the apparatus according to an embodiment of the present application further includes:

[0429] A start unit, configured to start a first timer after the first transmission unit sends a wake-up signal to the target cell, where the first timer is used to determine whether the target cell fails to wake up.

[0430] Optionally, the apparatus according to an embodiment of the present application further includes:

[0431] A first determination unit, configured to determine that the target cell fails to wake up if a System Information Block (SIB1) and / or an SSB sent by the target cell is not detected within the running time of the first timer.

[0432] Optionally, the apparatus according to an embodiment of the present application further includes:

[0433] A selection unit, configured to, when it is determined that the target cell fails to wake up, select a wake-up cell other than the target cell from multiple wake-up cells to perform a wake-up process.

[0434] Optionally, the apparatus according to an embodiment of the present application further includes:

[0435] A stop unit, configured to stop the first timer if an SIB1 and / or an SSB sent by the target cell is detected within the running time of the first timer.

[0436] Optionally, the apparatus according to an embodiment of the present application further includes:

[0437] A processing unit, configured to, within a preset time period, not determine a cell that fails to wake up as a wake-up cell and / or not send a wake-up signal to a cell that fails to wake up.

[0438] It should be noted here that the above apparatus provided by the embodiment of the present application can implement all the method steps implemented by the method embodiment applied to the terminal, and can achieve the same technical effect. The same parts and beneficial effects as those in the method embodiment will not be specifically described in this embodiment.

[0439] As Figure 10 shown, an embodiment of the present application further provides a signal transmission apparatus, including:

[0440] A second sending unit 1001 is configured to send wake-up signal configuration information to a terminal. The wake-up signal configuration information is used to configure at least one of a wake-up signal for a specific cell, a wake-up signal for a specific frequency, a wake-up signal for cells within a specific radio access network notification area (RNA), a wake-up signal for a specific cell group, and a wake-up signal for cells within a specific area range. The wake-up signal is used to request a target cell to send a system information block SIB1 message.

[0441] Optionally, the second sending unit is configured to obtain the wake-up signal configuration information through at least one of pre-configured information, system messages of a currently camped cell, radio resource control (RRC) messages of a currently camped cell, system messages of a historically camped cell, and RRC messages of a historically camped cell.

[0442] Optionally, the apparatus according to an embodiment of the present application further includes: a fourth obtaining unit configured to obtain the wake-up signal configuration information through at least one of an Xn interface, an F1 interface, and a core network interface before the second sending unit sends the wake-up signal configuration information to the terminal.

[0443] Alternatively, it includes a configuration unit configured to configure the wake-up signal configuration information for a neighbor cell through at least one of an Xn interface, an F1 interface, and a core network interface before the second sending unit sends the wake-up signal configuration information to the terminal.

[0444] Optionally, the wake-up signal or related parameters of the wake-up signal are used to indicate at least one of the following:

[0445] The transmission period of the SIB1 message;

[0446] The number of repetitions of the SIB1 message within one transmission period;

[0447] The number of repetitions of the transmission period of the SIB1 message;

[0448] The sending or stopping of the SIB1 message.

[0449] Optionally, the related parameters of the wake-up signal include at least one of the time domain resource of the wake-up signal, the frequency domain resource of the wake-up signal, the sequence information of the wake-up signal, and the transmission period of the wake-up signal.

[0450] Optionally, the wake-up signal includes at least one of a random access (RA) scrambling code, a sounding reference signal (SRS), an SRS positioning reference signal for positioning, and a demodulation reference signal (DMRS).

[0451] It should be noted here that the above device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments applied to the first network-side device, and can achieve the same technical effects. Therefore, the same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment.

[0452] As Figure 11 shown, the embodiments of the present application also provide a signal transmission device, including:

[0453] A second acquisition unit 1101, configured to acquire a wake-up signal;

[0454] A third transmission unit 1102, configured to send a System Information Block SIB1 message to a terminal according to the wake-up signal.

[0455] Optionally, the wake-up signal or related parameters of the wake-up signal are used to indicate at least one of the following:

[0456] The transmission period of the SIB1 message;

[0457] The number of repetitions of the SIB1 message within one transmission period;

[0458] The number of repetitions of the transmission period of the SIB1 message;

[0459] The sending or stopping of the SIB1 message.

[0460] Optionally, the related parameters of the wake-up signal include at least one of the time domain resource of the wake-up signal, the frequency domain resource of the wake-up signal, the sequence information of the wake-up signal, and the transmission period of the wake-up signal.

[0461] Optionally, the SIB1 message sent to the terminal satisfies at least one of the following:

[0462] The transmission period of the SIB1 message is less than or equal to the transmission period indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value;

[0463] The number of repetitions of the SIB1 message within one transmission period is higher than or equal to the number of repetitions of the SIB1 message within the transmission period indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value;

[0464] The number of repetitions of the transmission period of the SIB1 message is higher than or equal to the number of repetitions of the transmission period of the SIB1 message indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value;

[0465] The transmission times of the SIB1 message are higher than or equal to the transmission times of the SIB1 message indicated by the wake-up signal or the related parameters of the wake-up signal, or a predefined value.

[0466] Optionally, the device according to an embodiment of the present application further includes:

[0467] A fourth transmission unit, configured to transmit an SSB after the second acquisition unit acquires the wake-up signal.

[0468] Optionally, the device according to an embodiment of the present application further includes:

[0469] A fifth transmission unit, configured to transmit wake-up signal configuration information through at least one of the Xn interface, the F1 interface, and the core network interface before the second acquisition unit acquires the wake-up signal;

[0470] Alternatively, it includes a second reception unit, configured to receive the wake-up signal configuration information configured by a neighbor cell or the core network through at least one of the Xn interface, the F1 interface, and the core network interface before the second acquisition unit acquires the wake-up signal.

[0471] It should be noted here that the above device provided by the embodiment of the present application can implement all the method steps implemented by the method embodiment applied to the second network-side device, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiment will not be specifically described in this embodiment.

[0472] It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division. There may be other division methods in actual implementation. In addition, the functional units in various embodiments of the present application may be integrated in one processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit. The above integrated units may be implemented in the form of hardware or in the form of software functional units.

[0473] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on such an understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in various embodiments of this application. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical discs that can store program codes.

[0474] In some embodiments of this application, a processor-readable storage medium is further provided. The processor-readable storage medium stores program instructions, and the program instructions are used to cause the processor to execute all the steps implemented by the method embodiments executed by the aforementioned terminal or all the steps implemented by the method embodiments executed by the first network-side device or the second network-side device, and can achieve the same technical effects. Here, the same parts and beneficial effects as those in the method embodiments will not be specifically described again.

[0475] The terminal device involved in the embodiments of the present application can be a device that provides voice and / or data connectivity to users, such as a handheld device with wireless connection capabilities, or other processing devices connected to a wireless modem, etc. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device can be called a user equipment (UE). The wireless terminal device can communicate with one or more core networks (CNs) via a radio access network (RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it can be a portable, pocket-sized, handheld, computer-integrated, or vehicle-mounted mobile device that exchanges voice and / or data with the wireless access network. For example, devices such as personal communication service (PCS) phones, cordless phones, session initiated protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), etc. The wireless terminal device can also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, a user device, which is not limited in the embodiments of the present application.

[0476] The network device (or network-side device) involved in the embodiments of the present application may be a base station, which may include multiple cells that provide services to terminals. Depending on the specific application scenarios, the base station may also be referred to as an access point, or may be a device in the access network that communicates with wireless terminal devices through one or more sectors over the air interface, or other names. The network device can be used to mutually replace the received air frames and Internet Protocol (IP) packets, and act as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network device can also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), may also be a network device (NodeB) in a Wide-band Code Division Multiple Access (WCDMA), may also be an evolved network device (evolutional Node B, eNB or e-NodeB) in a Long Term Evolution (LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), may also be a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc., which are not limited in the embodiments of the present application. In some network architectures, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.

[0477] A network device and a terminal device can each use one or more antennas for Multi-Input Multi-Output (MIMO) transmission. The MIMO transmission can be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). According to the form and quantity of the root antenna combination, the MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can also be diversity transmission, precoding transmission, beamforming transmission, etc.

[0478] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) containing computer-usable program code.

[0479] The present application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0480] These processor-executable instructions can also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the processor-readable memory generate a manufactured article including an instruction device, and the instruction device implements the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0481] These processor-executable instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process. Therefore, the instructions executed on the computer or other programmable device provide for implementing the functions in the process Figure 1One or more processes and / or boxes Figure 1 Steps of functions specified in one or more boxes.

[0482] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these modifications and variations.

Claims

1. A signal transmission method, characterized in that, Executed by a terminal, the method includes: Obtaining wake-up signal configuration information, where the wake-up signal configuration information is used to configure at least one of a wake-up signal for a specific cell, a wake-up signal for a specific frequency, a wake-up signal for cells within a specific radio access network notification area (RNA), a wake-up signal for a specific cell group, and a wake-up signal for cells within a specific area range; According to the wake-up signal configuration information, sending a wake-up signal to a target cell, where the wake-up signal is used to request the target cell to send a System Information Block (SIB1) message.

2. The method according to claim 1, wherein The obtaining of the wake-up signal configuration information includes: Obtaining the wake-up signal configuration information through at least one of pre-configured information, the system message of the currently camped cell, the Radio Resource Control (RRC) message of the currently camped cell, the system message of a historically camped cell, and the RRC message of a historically camped cell; Wherein, the RRC message is the RRC message obtained when the terminal is in the connected state.

3. The method according to claim 1, wherein The wake-up signal or related parameters of the wake-up signal are used to indicate at least one of the following: The transmission period of the SIB1 message; The number of repetitions of the SIB1 message within one transmission period; The number of repetitions of the transmission period of the SIB1 message; The SIB1 message starts or stops being sent; Wherein, the related parameters of the wake-up signal are pre-configured by a network-side device or are protocol-agreed.

4. The method according to claim 3, wherein The related parameters of the wake-up signal include at least one of the time-domain resource of the wake-up signal, the frequency-domain resource of the wake-up signal, the sequence information of the wake-up signal, and the transmission period of the wake-up signal.

5. The method according to claim 1, characterized in that According to the wake-up signal configuration information, sending a wake-up signal to a target cell includes: Under the condition of meeting a preset condition, sending a wake-up signal to a target cell according to the wake-up signal configuration information; Wherein, the preset condition includes at least one of the following: The channel quality of the cell where the terminal is camped is lower than and / or equal to a first threshold; The signaling quality of the target cell measured by the terminal is higher than and / or equal to a second threshold; The target cell meets the conditions for cell selection or reselection by the terminal; The cell where the terminal is camped enables the terminal to send a wake-up signal for a specific cell, or a specific cell group, or cells in a specific RAN area, or cells in a specific area range; The terminal has uplink data to transmit or the terminal is ready to access the network; The terminal needs to update the SIB1 message of the wake-up cell; The terminal receives a system message update indication related to the wake-up cell.

6. The method according to claim 1, wherein The wake-up signal includes at least one of a Random Access (RA) scrambling code, a Sounding Reference Signal (SRS), an SRS positioning reference signal for positioning, and a Demodulation Reference Signal (DMRS).

7. The method according to claim 1, characterized in that After sending the wake-up signal to the target cell, it further includes: Receiving the SIB1 message sent by the target cell.

8. The method according to claim 7, wherein, The SIB1 message meets at least one of the following: The transmission period of the SIB1 message is less than or equal to the transmission period indicated by the wake-up signal or the related parameters of the wake-up signal or a predefined value; The repetition count of the SIB1 message within one transmission period is higher than or equal to the repetition count of the SIB1 message indicated by the wake-up signal or the related parameter of the wake-up signal within the transmission period or a predefined value; The repetition count of the transmission period of the SIB1 message is higher than or equal to the repetition count of the transmission period of the SIB1 message indicated by the wake-up signal or the related parameter of the wake-up signal or a predefined value; The transmission count of the SIB1 message is higher than or equal to the transmission count of the SIB1 message indicated by the wake-up signal or the related parameter of the wake-up signal or a predefined value.

9. The method according to claim 1, wherein After sending the wake-up signal to the target cell, it further includes: Obtaining the synchronization broadcast block SSB sent by the target cell, where the SSB is sent by the target cell based on the wake-up signal.

10. The method according to claim 1, wherein After sending the wake-up signal to the target cell, it further includes: Starting a first timer, where the first timer is used to determine whether the target cell fails to wake up.

11. The method according to claim 10, wherein It further includes: If the system information block SIB1 and / or the synchronization broadcast block SSB sent by the target cell are not detected within the running time of the first timer, it is determined that the target cell fails to wake up.

12. The method according to claim 10 or 11, characterized in that, It further includes: In the case of determining that the target cell fails to wake up, select a wake-up cell other than the target cell among multiple wake-up cells to perform the wake-up process.

13. The method according to claim 10, wherein, It further includes: If the SIB1 and / or SSB sent by the target cell are detected within the running time of the first timer, stop the first timer.

14. The method according to claim 10, wherein It further includes: Within a preset time period, do not determine a cell that fails to wake up as a wake-up cell and / or do not send a wake-up signal to a cell that fails to wake up.

15. A signal transmission method, characterized in that, Executed by a first network-side device, the method includes: Sending wake-up signal configuration information to a terminal, where the wake-up signal configuration information is used to configure at least one of a wake-up signal for a specific cell, a wake-up signal for a specific frequency, a wake-up signal for a cell within a specific radio access network notification area RNA, a wake-up signal for a specific cell group, and a wake-up signal for a cell within a specific area range, and the wake-up signal is used to request the target cell to send a system information block SIB1 message.

16. The method according to claim 15, characterized in that The sending of the wake-up signal configuration information to the terminal includes: Obtaining the wake-up signal configuration information through at least one of pre-configured information, the system message of the current resident cell, the radio resource control RRC message of the current resident cell, the system message of the historical resident cell, and the RRC message of the historical resident cell.

17. The method according to claim 15, wherein Before sending the wake-up signal configuration information to the terminal, it further includes: Obtaining the wake-up signal configuration information through at least one of the Xn interface, the F1 interface, and the core network interface; Or, configuring the wake-up signal configuration information for neighbor cells through at least one of the Xn interface, the F1 interface, and the core network interface.

18. The method according to claim 15, wherein The wake-up signal or the related parameter of the wake-up signal is used to indicate at least one of the following: The transmission period of the SIB1 message; The repetition count of the SIB1 message within one transmission period; The repetition count of the transmission period of the SIB1 message; The sending or stopping of the SIB1 message.

19. The method according to claim 18, characterized in that, The relevant parameters of the wake-up signal include at least one of the time-domain resource of the wake-up signal, the frequency-domain resource of the wake-up signal, the sequence information of the wake-up signal, and the transmission period of the wake-up signal.

20. The method according to claim 15, wherein The wake-up signal includes at least one of a random access (RA) scrambling code, a sounding reference signal (SRS), an SRS positioning reference signal for positioning, and a demodulation reference signal (DMRS).

21. A signal transmission method, characterized in that, Performed by a second network-side device, the method includes: Obtaining a wake-up signal; Sending a system information block (SIB1) message to a terminal according to the wake-up signal.

22. The method according to claim 21, wherein The wake-up signal or the relevant parameters of the wake-up signal are used to indicate at least one of the following: The transmission period of the SIB1 message; The number of repetitions of the SIB1 message within one transmission period; The number of repetitions of the transmission period of the SIB1 message; The SIB1 message starts or stops being sent.

23. The method according to claim 22, wherein The relevant parameters of the wake-up signal include at least one of the time-domain resource of the wake-up signal, the frequency-domain resource of the wake-up signal, the sequence information of the wake-up signal, and the transmission period of the wake-up signal.

24. The method according to claim 22, characterized in that, The SIB1 message sent to the terminal satisfies at least one of the following: The transmission period of the SIB1 message is less than or equal to the transmission period indicated by the wake-up signal or the relevant parameters of the wake-up signal or a predefined value; The number of repetitions of the SIB1 message within one transmission period is higher than or equal to the number of repetitions of the SIB1 message within the transmission period indicated by the wake-up signal or the relevant parameters of the wake-up signal or a predefined value; The number of repetitions of the transmission period of the SIB1 message is higher than or equal to the number of repetitions of the transmission period of the SIB1 message indicated by the wake-up signal or the relevant parameters of the wake-up signal or a predefined value; The number of transmissions of the SIB1 message is higher than or equal to the number of transmissions of the SIB1 message indicated by the wake-up signal or the relevant parameters of the wake-up signal or a predefined value.

25. The method according to claim 21, wherein After obtaining the wake-up signal, it further includes: Sending a synchronization signal block (SSB).

26. The method according to claim 21, wherein Before obtaining the wake-up signal, it further includes: Sending wake-up signal configuration information through at least one of an Xn interface, an F1 interface, and a core network interface; Or, receiving the wake-up signal configuration information configured by a neighbor cell or the core network through at least one of an Xn interface, an F1 interface, and a core network interface.

27. A signal transmission device, characterized in that, Includes a memory, a transceiver, and a processor; The memory is used to store a computer program; the transceiver is used to transmit and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations: Obtaining wake-up signal configuration information, where the wake-up signal configuration information is used to configure at least one of a wake-up signal for a specific cell, a wake-up signal for a specific frequency, a wake-up signal for cells within a specific radio access network notification area (RNA), a wake-up signal for a specific cell group, and a wake-up signal for cells within a specific area range; Sending a wake-up signal to a target cell according to the wake-up signal configuration information, where the wake-up signal is used to request the target cell to send a system information block (SIB1) message.

28. The device according to claim 27, wherein The processor also implements the following steps: Obtain the wake-up signal configuration information through at least one of pre-configured information, system messages of the current resident cell, radio resource control (RRC) messages of the current resident cell, system messages of historical resident cells, and RRC messages of historical resident cells; Wherein, the RRC message is an RRC message obtained when the terminal is in the connected state.

29. The device according to claim 27, wherein The wake-up signal or related parameters of the wake-up signal are used to indicate at least one of the following: The transmission period of the SIB1 message; The number of repetitions of the SIB1 message within one transmission period; The number of repetitions of the transmission period of the SIB1 message; The SIB1 message is sent or stopped from being sent; Wherein, the related parameters of the wake-up signal are pre-configured by the network-side device or are protocol-agreed.

30. The device according to claim 29, characterized in that, The related parameters of the wake-up signal include at least one of the time-domain resource of the wake-up signal, the frequency-domain resource of the wake-up signal, the sequence information of the wake-up signal, and the transmission period of the wake-up signal.

31. The device according to claim 27, characterized in that, The processor also implements the following steps: When a preset condition is satisfied, send a wake-up signal to the target cell according to the wake-up signal configuration information; Wherein, the preset condition includes at least one of the following: The channel quality of the resident cell of the terminal is lower than and / or equal to a first threshold; The signaling quality of the target cell measured by the terminal is higher than and / or equal to a second threshold; The target cell meets the conditions for cell selection or reselection of the terminal; The resident cell of the terminal enables the terminal to send a wake-up signal for a specific cell or a specific cell group or a cell in a specific radio access network notification area (RNA) or a cell in a specific area range; The terminal has uplink data to transmit or the terminal is ready to access the network; The terminal needs to update the SIB1 message of the wake-up cell; The terminal receives a system message update indication related to the wake-up cell.

32. A signal transmission device, characterized in that, It includes a memory, a transceiver, and a processor; The memory is used to store computer programs; the transceiver is used to transmit and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations: Send wake-up signal configuration information to the terminal, where the wake-up signal configuration information is used to configure at least one of a wake-up signal for a specific cell, a wake-up signal for a specific frequency, a wake-up signal for a cell in a specific radio access network notification area (RNA), a wake-up signal for a specific cell group, and a wake-up signal for a cell in a specific area range, and the wake-up signal is used to request the target cell to send a system information block (SIB1) message.

33. The device according to claim 32, wherein The processor also implements the following steps: Obtain the wake-up signal configuration information through at least one of pre-configured information, system messages of the current resident cell, radio resource control (RRC) messages of the current resident cell, system messages of historical resident cells, and RRC messages of historical resident cells.

34. A signal transmission device, characterized in that, It includes a memory, a transceiver, and a processor; The memory is used to store computer programs; the transceiver is used to transmit and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations: Obtain a wake-up signal; According to the wake-up signal, send a system information block (SIB1) message to the terminal.

35. The device according to claim 34, characterized in that, The wake-up signal or related parameters of the wake-up signal are used to indicate at least one of the following: The transmission period of the SIB1 message; The number of repetitions of the SIB1 message within one transmission period; The number of repetitions of the transmission period of the SIB1 message; The SIB1 message is sent or stops being sent.

36. A signal transmission device, characterized in that, Including: A first acquisition unit, configured to acquire wake-up signal configuration information, where the wake-up signal configuration information is used to configure at least one of a wake-up signal for a specific cell, a wake-up signal for a specific frequency, a wake-up signal for cells within a specific radio access network notification area (RNA), a wake-up signal for a specific cell group, and a wake-up signal for cells within a specific area range; A first transmission unit, configured to send a wake-up signal to a target cell according to the wake-up signal configuration information, where the wake-up signal is used to request the target cell to send a system information block SIB1 message.

37. A signal transmission device, characterized in that, Including: A second transmission unit, configured to send wake-up signal configuration information to a terminal, where the wake-up signal configuration information is used to configure at least one of a wake-up signal for a specific cell, a wake-up signal for a specific frequency, a wake-up signal for cells within a specific radio access network notification area (RNA), a wake-up signal for a specific cell group, and a wake-up signal for cells within a specific area range, and the wake-up signal is used to request a target cell to send a system information block SIB1 message.

38. A signal transmission device, characterized in that, Including: A second acquisition unit, configured to acquire a wake-up signal; A third transmission unit, configured to send a system information block SIB1 message to a terminal according to the wake-up signal.

39. A processor-readable storage medium, characterized in that, The processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the steps of the signal transmission method according to any one of claims 1 to 14, or execute the steps of the signal transmission method according to any one of claims 15 to 20, or execute the steps of the signal transmission method according to any one of claims 21 to 26.

Images