Signal transmission method and device

Abstract

The present disclosure relates to the technical field of communications, and provides a signal transmission method and device. The method of the embodiments of the present disclosure comprises: on the basis of priority information of cells to be woken up, selecting a target cell to be woken up from among the plurality of said cells; and on the basis of wake-up signal configuration information, sending a wake-up signal to said target cell.

Description

Signal transmission method and device

[0001] This disclosure claims priority to the Chinese patent application filed with the China Patent Office on January 23, 2024, with application number 202410096188.8 and application name “Signal Transmission Method and Device,” the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present disclosure relates to the field of communication technology, and in particular to a signal transmission method and device. Background Art

[0003] In order to reduce network energy consumption, a network-side energy-saving mechanism is introduced in the wireless communication system. The on-demand synchronization signal / PBCH (SSB) / system information block 1 (SIB1) mechanism is introduced in the Network Energy Saving (NES) technology of R19, that is, the network does not send SSB or SIB1 messages in energy-saving mode, and only sends SSB or SIB1 messages when there is a demand. In order to notify the network of the access or residence requirements of the user equipment (UE), the UE can send a wake-up signal to the base station so that the base station can send the SSB signal or SIB1 message immediately. However, when the UE can send a wake-up signal to multiple cells, the UE can only wake up a cell randomly and cannot selectively wake up a cell. Summary of the Invention

[0004] The present disclosure aims to provide a signal transmission method and apparatus to solve the problem of how a UE selects a wake-up cell when the UE can send a wake-up signal to multiple cells.

[0005] In order to achieve the above object, the present disclosure provides a signal transmission method, which is performed by a terminal, and the method includes:

[0006] Selecting a target wake-up cell from multiple wake-up cells according to the wake-up cell priority information;

[0007] Send a wake-up signal to the target wake-up cell according to the wake-up signal configuration information.

[0008] In some embodiments, the method of the present disclosure further includes:

[0009] Acquire the wake-up cell priority information according to at least one of pre-configured information, a system message of a currently camped cell, a radio resource control RRC message of the currently camped cell, a system message of a historically camped cell, and an RRC message of a historically camped cell;

[0010] The RRC message is an RRC message obtained when the terminal is in a connected state.

[0011] In some embodiments, the wake-up cell priority information is related to at least one of the following:

[0012] Frequency level;

[0013] Cell level;

[0014] Measurement signal corresponding to the cell;

[0015] Position sorting information of wake-up signal configuration;

[0016] Channel quality information of the cell.

[0017] In some embodiments, selecting a target wake-up cell from multiple wake-up cells according to the wake-up cell priority information includes:

[0018] Selecting M wake-up cells with the highest wake-up cell priority from multiple wake-up cells, where M is a positive integer;

[0019] The target wake-up cell is obtained according to the M wake-up cells.

[0020] In some embodiments, obtaining the target wake-up cell according to the M wake-up cells includes:

[0021] When M is 1, the M wake-up cells are used as the target wake-up cells;

[0022] Alternatively, when M is greater than 1, a cell is randomly selected from the M wake-up cells as the target wake-up cell, or a cell is selected from the M wake-up cells based on terminal implementation as the target wake-up cell, or a wake-up cell with the best channel quality is selected from the M wake-up cells as the target wake-up cell;

[0023] The target wake-up cell meets the cell selection or reselection conditions.

[0024] In some embodiments, after sending the wake-up signal to the target wake-up cell, the method further includes:

[0025] A first timer is started, where the first timer is used to determine whether the target wake-up cell fails to wake up.

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

[0027] If the system information block SIB1 or synchronization broadcast block SSB sent by the target wake-up cell is not detected within the running time of the first timer, it is determined that the target wake-up cell has failed to wake up.

[0028] In some embodiments, the method of the present disclosure further includes:

[0029] In a case where it is determined that the target wake-up cell fails to wake up, a wake-up cell other than the target wake-up cell is selected from multiple wake-up cells to perform a wake-up process.

[0030] In some embodiments, the method of the present disclosure further includes:

[0031] If SIB1 or SSB sent by the target wake-up cell is detected within the running time of the first timer, the first timer is stopped.

[0032] In some embodiments, the method of the present disclosure further includes:

[0033] During a preset time period, the cell that fails to be awakened is not determined as a wake-up cell and / or a wake-up signal is not sent to the cell that fails to be awakened.

[0034] The present disclosure also provides a signal transmission method, which is performed by a first network-side device. The method includes:

[0035] Acquire wake-up cell priority information, where the wake-up cell priority information is used by the terminal to select a target wake-up cell from multiple wake-up cells;

[0036] Send wake-up cell priority information to the terminal.

[0037] In some embodiments, before obtaining the wake-up cell priority information, the method further includes:

[0038] A first request message is sent to a second network side device, where the first request message is used to request sending wake-up cell priority information, and the second network side device is a neighbor base station of the first network side device.

[0039] In some embodiments, the method of the present disclosure further includes:

[0040] In a case where the wake-up cell priority information is configured by the first network side device itself, the wake-up cell priority information is sent to a second network side device, where the second network side device is a neighbor base station of the first network side device.

[0041] In some embodiments, the wake-up cell priority information is related to at least one of the following:

[0042] Frequency level;

[0043] Cell level;

[0044] Measurement signal corresponding to the cell;

[0045] Position sorting information of wake-up signal configuration;

[0046] Channel quality information of the cell.

[0047] The present disclosure also provides a signal transmission method, which is performed by a second network-side device. The method includes:

[0048] Sending wake-up cell priority information to the first network side device, or receiving wake-up cell priority information sent by the first network side device, wherein the wake-up cell priority information is used by the terminal to select a target wake-up cell from multiple wake-up cells.

[0049] In some embodiments, before sending the wake-up cell priority information to the first network-side device, the method further includes:

[0050] A first request message sent by a first network side device is obtained, where the first request message is used to request sending wake-up cell priority information.

[0051] In some embodiments, after receiving the wake-up cell priority information sent by the first network side device, the method further includes:

[0052] Send a response message to the first network-side device.

[0053] In some embodiments, the response message includes a confirmation message of the wake-up cell priority information or suggestion information of the wake-up cell priority information.

[0054] In some embodiments, the wake-up cell priority information is related to at least one of the following:

[0055] Frequency level;

[0056] Cell level;

[0057] Measurement signal corresponding to the cell;

[0058] Position sorting information of wake-up signal configuration;

[0059] Channel quality information of the cell.

[0060] The embodiment of the present disclosure further provides a signal transmission device, including a memory, a transceiver, and a processor;

[0061] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0062] Selecting a target wake-up cell from multiple wake-up cells according to the wake-up cell priority information;

[0063] Send a wake-up signal to the target wake-up cell according to the wake-up signal configuration information.

[0064] In some embodiments, the processor further implements the following steps:

[0065] Acquire the wake-up cell priority information according to at least one of pre-configured information, a system message of a currently camped cell, a radio resource control RRC message of the currently camped cell, a system message of a historically camped cell, and an RRC message of a historically camped cell;

[0066] The RRC message is an RRC message obtained when the terminal is in a connected state.

[0067] In some embodiments, the wake-up cell priority information is related to at least one of the following:

[0068] Frequency level;

[0069] Cell level;

[0070] Measurement signal corresponding to the cell;

[0071] Position sorting information of wake-up signal configuration;

[0072] Channel quality information of the cell.

[0073] In some embodiments, the processor further implements the following steps:

[0074] Selecting M wake-up cells with the highest wake-up cell priority from multiple wake-up cells, where M is a positive integer;

[0075] The target wake-up cell is obtained according to the M wake-up cells.

[0076] In some embodiments, the processor further implements the following steps:

[0077] When M is 1, the M wake-up cells are used as the target wake-up cells;

[0078] Alternatively, when M is greater than 1, a cell is randomly selected from the M wake-up cells as the target wake-up cell, or a cell is selected from the M wake-up cells based on terminal implementation as the target wake-up cell, or a wake-up cell with the best channel quality is selected from the M wake-up cells as the target wake-up cell;

[0079] The target wake-up cell meets the cell selection or reselection conditions.

[0080] In some embodiments, the processor further implements the following steps:

[0081] A first timer is started, where the first timer is used to determine whether the target wake-up cell fails to wake up.

[0082] In some embodiments, the processor further implements the following steps:

[0083] If the system information block SIB1 or synchronization broadcast block SSB sent by the target wake-up cell is not detected within the running time of the first timer, it is determined that the target wake-up cell has failed to wake up.

[0084] In some embodiments, the processor further implements the following steps:

[0085] In a case where it is determined that the target wake-up cell fails to wake up, a wake-up cell other than the target wake-up cell is selected from multiple wake-up cells to perform a wake-up process.

[0086] In some embodiments, the processor further implements the following steps:

[0087] If SIB1 or SSB sent by the target wake-up cell is detected within the running time of the first timer, the first timer is stopped.

[0088] In some embodiments, the processor further implements the following steps:

[0089] During a preset time period, the cell that fails to be awakened is not determined as a wake-up cell and / or a wake-up signal is not sent to the cell that fails to be awakened.

[0090] The embodiment of the present disclosure further provides a signal transmission device, including a memory, a transceiver, and a processor;

[0091] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0092] Acquire wake-up cell priority information, where the wake-up cell priority information is used by the terminal to select a target wake-up cell from multiple wake-up cells;

[0093] Send wake-up cell priority information to the terminal.

[0094] In some embodiments, the processor further implements the following steps:

[0095] A first request message is sent to a second network side device, where the first request message is used to request sending wake-up cell priority information, and the second network side device is a neighbor base station of the first network side device.

[0096] In some embodiments, the processor further implements the following steps:

[0097] In a case where the wake-up cell priority information is configured by the first network side device itself, the wake-up cell priority information is sent to a second network side device, where the second network side device is a neighbor base station of the first network side device.

[0098] The embodiment of the present disclosure further provides a signal transmission device, including a memory, a transceiver, and a processor;

[0099] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0100] Sending wake-up cell priority information to the first network side device, or receiving wake-up cell priority information sent by the first network side device, wherein the wake-up cell priority information is used by the terminal to select a target wake-up cell from multiple wake-up cells.

[0101] In some embodiments, the processor further implements the following steps:

[0102] A first request message sent by a first network side device is obtained, where the first request message is used to request sending wake-up cell priority information.

[0103] An embodiment of the present disclosure further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the steps of the signal transmission method described above.

[0104] The above technical solution disclosed in the present invention has at least the following beneficial effects:

[0105] In the disclosed embodiment, a target wake-up cell is selected from multiple wake-up cells based on wake-up cell priority information; and a wake-up signal is sent to the target wake-up cell based on the wake-up signal configuration information. Thus, based on the wake-up cell priority information, a higher-priority wake-up cell can be selected as the target wake-up cell. This approach achieves the goal of selecting an appropriate target wake-up cell to execute the wake-up process, effectively avoiding access failures or residency failures caused by inappropriate wake-up procedures, improving the success rate of subsequent access, and reducing terminal power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0106] FIG1 is a structural diagram of a network system to which the embodiments of the present disclosure may be applied;

[0107] FIG2 shows a schematic diagram of a flow chart of a signal transmission method according to an embodiment of the present disclosure;

[0108] FIG3 shows one interactive schematic diagram of the signal transmission method according to an embodiment of the present disclosure;

[0109] FIG4 shows a second interactive schematic diagram of the signal transmission method according to an embodiment of the present disclosure;

[0110] FIG5 shows a second flow chart of the signal transmission method according to an embodiment of the present disclosure;

[0111] FIG6 shows a third flow chart of the signal transmission method according to an embodiment of the present disclosure;

[0112] FIG7 shows a third interactive schematic diagram of the signal transmission method according to an embodiment of the present disclosure;

[0113] FIG8 shows one structural block diagram of a signal transmission device according to an embodiment of the present disclosure;

[0114] FIG9 shows a second structural block diagram of the signal transmission device according to an embodiment of the present disclosure;

[0115] FIG10 shows one of the module schematic diagrams of the signal transmission device according to an embodiment of the present disclosure;

[0116] FIG11 shows a second schematic diagram of a module of a signal transmission device according to an embodiment of the present disclosure;

[0117] FIG12 shows a third module schematic diagram of the signal transmission device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0118] The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present disclosure without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0119] The terms "first," "second," and the like in the specification and claims of the present disclosure are used to distinguish similar objects and are not necessarily used to describe a particular order or sequential sequence. It should be understood that the terms used in this manner are interchangeable where appropriate so that the embodiments of the present disclosure described herein may be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having," and any variations thereof, are intended to cover non-exclusive inclusions, e.g., a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products, or apparatus.

[0120] In the embodiments of the present disclosure, the term "and / or" describes the relationship between associated objects, indicating that three possible relationships exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship. In the embodiments of the present disclosure, the term "plurality" refers to two or more, and other quantifiers are similar.

[0121] In the embodiments of the present disclosure, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present disclosure should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0122] Figure 1 shows a block diagram of a wireless communication system to which the embodiments of the present disclosure can be applied. The wireless communication system includes a terminal device 11 and a network-side device (or network device) 12. The terminal device 11 may also be referred to as a terminal or a user equipment (UE). It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present disclosure. The network-side device 12 may be a base station or a core network. It should be noted that in the embodiments of the present disclosure, only a base station in the NR system is used as an example, but the specific type of the base station is not limited.

[0123] In order to enable those skilled in the art to better understand the embodiments of the present disclosure, the following description is first given.

[0124] (1) Functions of SSB;

[0125] The SSB contains basic base station synchronization information. The UE obtains basic synchronization information and downlink channel quality by measuring the SSB. SSB information is sent periodically and can be repeated within a certain period.

[0126] (2) Function of SIB1;

[0127] The SIB1 message contains basic information about the cell that the UE can access, such as the Public Land Mobile Network (PLMN), access control information, Random Access Channel (RACH) configuration information, etc. The SIB1 message is sent repeatedly at a certain period.

[0128] (3) Basic concepts of R19 on-demand SSB scenarios

[0129] In related technologies, the network always sends SSBs at an agreed-upon period. The SSB message includes synchronization information that allows UEs to access the cell. To save energy on the network side, the base station can disable the transmission of SSB messages or send sparse SSBs. This also prevents connected UEs from accessing the cell, affecting cell coverage and network capacity.

[0130] (4) Basic concepts of R19 on-demand SIB1 scenario;

[0131] In related technologies, the network always sends SIB1 messages at a predetermined period. SIB1 messages contain basic information that allows UEs to access a cell, such as PLMN and RA configuration information. To save energy on the network side, the base station can disable the transmission of SIB1 messages. This also prevents UEs from staying in the cell, affecting cell coverage and network capacity.

[0132] When the UE is in idle / inactive state, if a cell is in energy-saving state and no SIB1 message is sent, but the UE detects this cell based on the cell's SSB information and wants to access the cell, the cell needs to start the transmission of SBI1 based on a certain trigger mechanism so that the UE can reside in the corresponding cell.

[0133] (5) Cell selection / reselection mechanism;

[0134] When the UE performs cell reselection, the basic principle is to choose a cell with a high frequency priority and the best channel quality among cells in the same frequency band.

[0135] As shown in FIG2 , an embodiment of the present disclosure provides a signal transmission method, including:

[0136] Step 201: Select a target wake-up cell from multiple wake-up cells according to the wake-up cell priority information.

[0137] In the disclosed embodiments, the wake-up cell priority information may be configured by the network or determined by the terminal itself. The wake-up cell priority information indicates the priority of the cell being woken up. For example, the higher the wake-up cell priority, the higher the priority of the corresponding cell being woken up.

[0138] In some embodiments, the terminal selects the wake-up cell with the highest priority as the target wake-up cell according to the wake-up cell priority information.

[0139] In some embodiments, the target wake-up cell satisfies conditions for cell selection and / or reselection.

[0140] Step 202: Send a wake-up signal to the target wake-up cell according to the wake-up signal configuration information.

[0141] In some embodiments, the wake-up signal configuration information includes: time domain resources, frequency domain resources, sequence information and / or transmission period of the wake-up signal.

[0142] In the disclosed embodiment, a target wake-up cell is selected from multiple wake-up cells based on wake-up cell priority information; and a wake-up signal is sent to the target wake-up cell based on the wake-up signal configuration information. Thus, based on the wake-up cell priority information, a higher-priority wake-up cell can be selected as the target wake-up cell. This approach achieves the goal of selecting an appropriate target wake-up cell to execute the wake-up process, effectively avoiding access failures or residency failures caused by inappropriate wake-up procedures, improving the success rate of subsequent access, and reducing terminal power consumption.

[0143] It should be noted that the signal transmission method of the embodiment of the present disclosure is applicable to a scenario where there are one or more wake-up cells.

[0144] If there is a wake-up cell, a target wake-up cell is selected based on the wake-up cell priority information and whether the wake-up cell meets the target conditions, where the target conditions include meeting the cell selection and / or reselection conditions. For example, if the wake-up cell priority of the wake-up cell is the highest or higher than the preset priority, and the wake-up cell meets the cell selection or reselection conditions, the wake-up cell is determined as the target wake-up cell.

[0145] In some embodiments, the method of the present disclosure further includes:

[0146] Acquire the wake-up cell priority information according to at least one of pre-configured information, a system message of a current resident cell, a radio resource control (RRC) message of the current resident cell, a system message of a historical resident cell, and an RRC message of a historical resident cell;

[0147] The RRC message is an RRC message obtained when the terminal is in a connected state.

[0148] The RRC message may be at least one of an RRC reconfiguration message and an RRC release message.

[0149] In the embodiment of the present disclosure, the system message includes a Master Information Block (MIB) message and / or a System Information Block (SIB) message.

[0150] In some embodiments, the method of the present disclosure further includes:

[0151] The wake-up signal configuration information is acquired according to at least one of pre-configured information, a system message of a current resident cell, a radio resource control RRC message of the current resident cell, a system message of a historical resident cell, and an RRC message of a historical resident cell.

[0152] It should be noted that the above-mentioned wake-up signal configuration information and the wake-up cell priority information can be obtained through the same message or through different messages, and this disclosure does not make specific limitations on this.

[0153] In some embodiments, the wake-up cell priority information is related to at least one of the following:

[0154] Item 1: Frequency level;

[0155] Here, the above-mentioned wake-up cell priority information may include priority information based on frequency level. For example, the above-mentioned wake-up cell priority information may be indicated by frequency level. The higher the frequency level, the higher the wake-up cell priority corresponding to the frequency.

[0156] Item 2: Community level.

[0157] Here, the wake-up cell priority information includes priority information based on the cell level. For example, the wake-up cell priority information can be indicated by the cell level. The higher the cell level, the higher the wake-up cell priority corresponding to the cell.

[0158] The third item: the measurement signal corresponding to the cell.

[0159] Here, the wake-up cell priority information includes priority information based on the measurement signal corresponding to the cell. For example, the wake-up cell priority information is indicated by the measurement signal corresponding to the cell. The higher the quality of the wake-up signal, the higher the wake-up cell priority corresponding to the cell.

[0160] In some embodiments, the quality of the above-mentioned measurement signal can be expressed by reference signal received power (RSRP), reference signal received quality (RSRQ), received signal strength indication (RSSI), signal-to-noise ratio (SNR), signal-to-interference plus noise ratio (SINR), etc.

[0161] Item 4: Position sorting information of wake-up signal configuration.

[0162] Here, the above-mentioned wake-up cell priority information includes priority information determined based on the position sorting information of the wake-up signal configuration. In some embodiments, the above-mentioned wake-up signal configuration information includes multiple wake-up information configurations, and the wake-up cell priority information can be indicated by the position sorting of the wake-up signal configuration in the wake-up information configuration information. For example, the higher the sorting, the higher the wake-up cell priority of the cell or frequency corresponding to the wake-up signal configuration, and the lower the sorting, the higher the wake-up cell priority of the cell or frequency corresponding to the wake-up signal configuration.

[0163] Item 5: Cell channel quality information.

[0164] In some embodiments, the channel quality information includes at least one of RSRP, RSRQ, received signal strength indication (RSSI), signal-to-noise ratio (SNR), and signal-to-noise and interference ratio (SINR).

[0165] Here, the above-mentioned wake-up cell priority information includes priority information determined based on the channel quality information of the cell. In some embodiments, the wake-up cell priority information is indicated by the channel quality information. For example, the better the channel quality, the higher the wake-up cell priority of the corresponding cell.

[0166] In some embodiments, selecting a target wake-up cell from multiple wake-up cells according to the wake-up cell priority information includes:

[0167] Selecting M wake-up cells with the highest wake-up cell priority from multiple wake-up cells, where M is a positive integer;

[0168] The target wake-up cell is obtained according to the M wake-up cells.

[0169] As an implementation manner, obtaining the target wake-up cell according to the M wake-up cells includes:

[0170] When M is 1, the M wake-up cells are used as the target wake-up cells;

[0171] When M is greater than 1, randomly select one cell from the M wake-up cells as the target wake-up cell, or select one cell from the M wake-up cells as the target wake-up cell based on terminal implementation, or select one wake-up cell with the best channel quality from the M wake-up cells as the target wake-up cell;

[0172] The target wake-up cell satisfies a cell selection or reselection condition, and / or the channel quality of the target wake-up cell is higher than a certain threshold.

[0173] Based on the above solution, in the disclosed embodiments, if the cell selection or reselection conditions are met, the cell with the highest priority can be selected as the target wake-up cell. If multiple wake-up cells are available for selection at the same priority level, the terminal can select a wake-up cell as the target wake-up cell based on internal implementation or random selection.

[0174] For example, if the cell selection or reselection conditions are met, the cell with the highest frequency priority can be selected as the target wake-up cell. If multiple wake-up cells are available for selection for the same frequency priority, the cell with the best channel quality is selected as the target wake-up cell. Alternatively, among the cells whose channel quality meets the cell selection or reselection conditions, the cell with the highest priority is selected as the target wake-up cell.

[0175] In some embodiments, after sending the wake-up signal to the target wake-up cell, the method further includes:

[0176] A first timer is started, where the first timer is used to determine whether the target wake-up cell fails to wake up.

[0177] Here, based on the first timer, the terminal can determine whether the target wake-up cell fails to be woken up, so as to subsequently adopt corresponding processing operations.

[0178] In some embodiments, the method of the present disclosure further includes:

[0179] If the system information block SIB1 and / or synchronization broadcast block SSB sent by the target wake-up cell is not detected within the running time of the first timer, it is determined that the target wake-up cell has failed to wake up.

[0180] In an embodiment of the present disclosure, 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 target cell wake-up has failed. By starting the timer, the length of time the terminal waits for the wake-up cell to send SIB1 and / or SSB can be controlled.

[0181] In some embodiments, the method of the present disclosure further includes:

[0182] In a case where it is determined that the target wake-up cell fails to wake up, a wake-up cell other than the target wake-up cell is selected from multiple wake-up cells to perform a wake-up process.

[0183] Here, in the case where the target wake-up cell fails to wake up, the target wake-up cell may not be successfully awakened within a certain period of time. For example, the channel quality of the target wake-up cell is 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 is possible to effectively avoid access failure or residence failure caused by an inappropriate wake-up process, thereby improving the success rate of subsequent access and reducing the power consumption of the terminal.

[0184] In some embodiments, the method of the present disclosure further includes:

[0185] If SIB1 or SSB sent by the target wake-up cell is detected within the running time of the first timer, the first timer is stopped.

[0186] Here, if the SIB1 or SSB sent by the target wake-up cell is detected within the running time of the first timer, it is determined that the target wake-up cell is awakened successfully, and the first timer is stopped.

[0187] In some embodiments, the method of the present disclosure further includes:

[0188] During a preset time period, the cell that fails to be awakened is not determined as a wake-up cell and / or a wake-up signal is not sent to the cell that fails to be awakened.

[0189] Here, the cell that failed to be awakened may not be successfully awakened within a certain time period. For example, the channel quality of the cell that failed to be awakened within a certain time period is low. Therefore, by determining the cell that failed to be awakened as a cell that is not within the awakening range within the preset time period and / or not sending a wake-up signal to the cell that failed to be awakened, it is possible to effectively avoid access failure or residence failure caused by inappropriate wake-up procedures, thereby improving the success rate of subsequent access and reducing the power consumption of the terminal.

[0190] In some embodiments, the cell of the embodiment of the present disclosure includes a Network Energy Saving (NES) cell. The solution of the embodiment of the present disclosure is applicable to a terminal in an idle state or an inactive state waking up the NES cell to send a SIB message, or the solution of the embodiment of the present disclosure is applicable to a terminal in an RRC connected state waking up the NES cell to send an SSB.

[0191] The signal transmission method disclosed herein is described below with reference to embodiments.

[0192] Example 1:

[0193] In the disclosed embodiment, an idle / inactive UE selects a suitable cell to send a wake-up signal based on the wake-up cell priority information, which is used to send a SIB1 message or SSB to the cell. When sending the wake-up signal, a timer (i.e., the first timer described above) is started. If no SIB1 message is received within the running time of the first timer, the UE stops sending the SIB-based wake-up signal to the cell (i.e., the wake-up information is used to instruct the cell to send the SIB) within a preset time period and selects the next cell that can be woken up.

[0194] As shown in Figure 3, it includes:

[0195] Step 1: The idle / inactive UE obtains the wake-up signal configuration information and wake-up cell priority information through pre-configuration information, system message or RRC message.

[0196] In some embodiments, the system message includes a system message of a currently resident cell or a system message of a historically resident cell, and the RRC message includes an RRC message of a currently resident cell or an RRC message of a historically resident cell.

[0197] In some embodiments, the wake-up cell priority information includes at least one of the following:

[0198] Priority information for waking up cells based on frequency levels;

[0199] Priority information for waking up cells based on cell level;

[0200] Priority information for waking up a cell based on the measurement signal, i.e., if the UE selects a cell for waking up, the higher the quality of the measurement signal, the higher the priority of the cell to be woken up;

[0201] Priority information for waking up cells based on location sorting information configured by the wake-up signal.

[0202] Step 2: The UE selects a target wake-up cell based on the wake-up cell priority information using a selection criterion and sends a wake-up signal.

[0203] In some embodiments, the selection criteria include at least one of the following:

[0204] Select the cell with the highest priority (e.g., the cell with the highest frequency priority). If multiple cells are available for the same frequency priority, the UE selects the cell with the best channel quality (in some embodiments, the channel qualities are sorted by R value) or randomly selects a cell whose channel quality meets certain conditions.

[0205] Randomly selecting a cell whose channel quality meets the conditions for cell selection and / or reselection;

[0206] Randomly select cells whose channel quality is higher than a certain threshold;

[0207] It should be noted that, in the embodiments of the present disclosure, the channel quality of the wake-up cell or the cell sending the wake-up signal meets the threshold value for cell selection and reselection, or meets a predefined threshold value.

[0208] Step 3: After the UE sends a wake-up signal to the target wake-up cell, it starts a first timer. If the SIB1 information of the corresponding cell is not detected within the first timer, it is considered that the wake-up has failed, and another cell is selected for wake-up. The cell will not be selected for wake-up again within the second time (i.e., the above-mentioned preset time period). If the SIB1 information of the corresponding cell is detected within the first timer, the timer is stopped.

[0209] Step 4: After obtaining the SIB1 information, the UE performs a camp-on or access operation on the target wake-up cell.

[0210] Example 2:

[0211] The connected UE selects a suitable cell to send a wake-up signal based on the wake-up cell priority information. When sending the wake-up signal, a first timer is started. If no SSB message is received within the first timer, the UE stops sending the SSB-based wake-up signal to the cell (i.e., the wake-up signal is used to instruct the cell to send SSB) within a preset time period and selects the next cell that can be woken up.

[0212] As shown in Figure 4, it includes:

[0213] Step 1: The idle / inactive UE obtains the wake-up signal configuration information and wake-up cell priority information through pre-configuration information, system message or RRC message.

[0214] In some embodiments, the system message includes a system message of a currently resident cell or a system message of a historically resident cell, and the RRC message includes an RRC message of a currently resident cell or an RRC message of a historically resident cell.

[0215] In some embodiments, the wake-up cell priority information includes at least one of the following:

[0216] Priority information for waking up cells based on frequency levels;

[0217] Priority information for waking up cells based on cell level;

[0218] Priority information for waking up a cell based on the measurement signal, i.e., if the UE selects a cell for waking up, the higher the quality of the measurement signal, the higher the priority of the cell to be woken up;

[0219] Priority information for waking up cells based on location sorting information configured by the wake-up signal.

[0220] Step 2: Based on the wake-up cell priority information, the UE uses the following selection criteria to select a target wake-up cell and sends a wake-up signal.

[0221] In some embodiments, the selection criteria include at least one of the following:

[0222] Select the cell with the highest priority (e.g., the cell with the highest frequency priority). If multiple cells are available for the same frequency priority, the UE selects the cell with the best channel quality (in some embodiments, the channel qualities are sorted by R value) or randomly selects a cell whose channel quality meets certain conditions.

[0223] Randomly selecting a cell whose channel quality meets the conditions for cell selection and / or reselection;

[0224] Randomly select cells whose channel quality is higher than a certain threshold;

[0225] It should be noted that, in the embodiments of the present disclosure, the channel quality of the wake-up cell or the cell sending the wake-up signal meets the threshold value for cell selection and reselection, or meets a predefined threshold value.

[0226] Step 3: After the UE sends a wake-up signal to the target wake-up cell, it starts a first timer. If the SSB information of the corresponding cell is not detected within the first timer, it is considered that the wake-up has failed, and another cell is selected for wake-up. The cell will not be selected for wake-up again within the second time (i.e., the above-mentioned preset time period). If the SSB information of the corresponding cell is detected within the first timer, the timer is stopped.

[0227] Step 4: After obtaining the SSB information, the UE performs subsequent access operations for the target wake-up cell.

[0228] In the disclosed embodiments, a target wake-up cell is selected from multiple wake-up cells based on at least one of wake-up cell priority information and wake-up cell channel quality information; and a wake-up signal is sent to the target wake-up cell based on wake-up signal configuration information. This approach achieves the goal of selecting an appropriate target wake-up cell to execute the wake-up process, effectively avoiding access failures or residency failures caused by inappropriate wake-up procedures, improving the success rate of subsequent accesses, and reducing terminal power consumption.

[0229] As shown in FIG5 , an embodiment of the present disclosure further provides a signal transmission method, which is performed by a first network-side device. The method includes:

[0230] Step 501: Acquire wake-up cell priority information, where the wake-up cell priority information is used by a terminal to select a target wake-up cell from multiple wake-up cells.

[0231] In some embodiments, the wake-up cell priority information is obtained through at least one of an Xn interface, an F1 interface, and a core network interface.

[0232] For example, the first network side device may be specifically a base station. The first network side device may obtain the above-mentioned wake-up cell priority information by configuring the wake-up cell priority information itself, or may obtain the wake-up cell priority information from a second network side device (a neighboring base station of the first network side device), or may obtain the wake-up cell priority information from a core network device. For another example, the above-mentioned first network side device may be specifically a distributed unit (DU), and the DU obtains the wake-up cell priority information from a centralized unit (CU) via an F1 interface; or, the above-mentioned first network side device may be specifically a CU, and the CU obtains the wake-up cell priority information from the DU via an F1 interface.

[0233] Step 502: Send wake-up cell priority information to the terminal.

[0234] The wake-up cell priority information is used to indicate the priority of the cell to be woken up. For example, the higher the wake-up cell priority, the higher the priority of the corresponding cell to be woken up.

[0235] In an embodiment of the present disclosure, wake-up cell priority information is sent to a terminal so that the terminal can select a target wake-up cell from multiple wake-up cells based on the wake-up cell priority information, thereby achieving the purpose of selecting a suitable target wake-up cell to execute the wake-up process, thereby effectively avoiding access failure or residence failure caused by an inappropriate wake-up process, improving the success rate of subsequent access and reducing the power consumption of the terminal.

[0236] In some embodiments, the method of the present disclosure further includes:

[0237] Send wake-up signal configuration information to the terminal.

[0238] The wake-up signal configuration information includes information such as time domain resources, frequency domain resources, sequence information and / or transmission period of the wake-up signal. The wake-up signal configuration information is used to facilitate the terminal to send the wake-up signal to the selected target wake-up cell.

[0239] In some embodiments, before obtaining the wake-up cell priority information, the method further includes:

[0240] A first request message is sent to a second network side device, where the first request message is used to request sending wake-up cell priority information, and the second network side device is a neighbor base station of the first network side device.

[0241] In some embodiments, the second network side device may also be a CU or a DU. For example, when the first network side device is a CU, the second network side device is a DU; when the first network side device is a DU, the second network side device is a CU.

[0242] In some embodiments, the method of the present disclosure further includes:

[0243] In a case where the wake-up cell priority information is configured by the first network side device itself, the wake-up cell priority information is sent to a second network side device, where the second network side device is a neighbor base station of the first network side device.

[0244] Here, when the first network side device itself configures the wake-up cell priority information, the wake-up cell priority information is sent to the base station of the cell waiting to be awakened (i.e., the second network side device), so that the second network side device can subsequently send the wake-up cell priority information to the terminal.

[0245] In some embodiments, the wake-up cell priority information is related to at least one of the following:

[0246] Frequency level;

[0247] Cell level;

[0248] Measurement signal corresponding to the cell;

[0249] Position sorting information of wake-up signal configuration;

[0250] Channel quality information of the cell.

[0251] It should be noted that the wake-up cell priority information has been described in detail in the method embodiment on the terminal side and will not be repeated here.

[0252] In an embodiment of the present disclosure, wake-up cell priority information is sent to a terminal so that the terminal can select a target wake-up cell from multiple wake-up cells based on the wake-up cell priority information, thereby achieving the purpose of selecting a suitable target wake-up cell to execute the wake-up process, thereby effectively avoiding access failure or residence failure caused by an inappropriate wake-up process, improving the success rate of subsequent access and reducing the power consumption of the terminal.

[0253] As shown in FIG6 , an embodiment of the present disclosure further provides a signal transmission method, which is performed by a second network-side device. The method includes:

[0254] Step 601: Send wake-up cell priority information to a first network side device, or receive wake-up cell priority information sent by the first network side device, wherein the wake-up cell priority information is used by the terminal to select a target wake-up cell from multiple wake-up cells.

[0255] For example, the first network-side device may be a base station, the second network-side device may be a neighboring base station of the first network-side device, and the second network-side device may send the wake-up cell priority information to the first network-side device. For another example, the first network-side device may be a distributed unit (DU) and the second network-side device may be a CU. The CU may send the wake-up cell priority information to the DU via the F1 interface. Alternatively, the first network-side device may be a CU and the second network-side device may be a DU. The DU may send the wake-up cell priority information to the CU via the F1 interface.

[0256] In an embodiment of the present disclosure, wake-up cell priority information is sent to a first network side device, so that the first network side device can send the wake-up cell priority information to a terminal, so that the terminal selects a target wake-up cell from a plurality of wake-up cells according to the wake-up cell priority information, thereby achieving the purpose of selecting a suitable target wake-up cell to execute the wake-up process, thereby effectively avoiding access failure or residence failure caused by an inappropriate wake-up process, improving the success rate of subsequent access and reducing the power consumption of the terminal.

[0257] In some embodiments, before sending the wake-up cell priority information to the first network-side device, the method further includes:

[0258] A first request message sent by a first network side device is obtained, where the first request message is used to request sending wake-up cell priority information.

[0259] In some embodiments, after receiving the wake-up cell priority information sent by the first network side device, the method further includes:

[0260] Send a response message to the first network-side device.

[0261] In some embodiments, the response message includes a confirmation message of the wake-up cell priority information or suggestion information of the wake-up cell priority information.

[0262] Here, after receiving the confirmation message, the first network side device determines that the second network side device has received the wake-up cell priority information. After receiving the suggestion information, the first network side device can adjust the wake-up cell priority information accordingly based on the suggestion information.

[0263] In some embodiments, the wake-up cell priority information is related to at least one of the following:

[0264] Frequency level;

[0265] Cell level;

[0266] Measurement signal corresponding to the cell;

[0267] Position sorting information of wake-up signal configuration;

[0268] Channel quality information of the cell.

[0269] It should be noted that the wake-up cell priority information has been described in detail in the method embodiment on the terminal side and will not be repeated here.

[0270] The following describes the process of exchanging wake-up cell priority information between base stations.

[0271] As shown in Figure 7, it includes:

[0272] Step 0: gNB1 obtains a request message from gNB2 (i.e., the first request message mentioned above), which is used to request the transmission of wake-up cell priority information.

[0273] This step is optional.

[0274] Step 1: gNB1 sends the wake-up signal configuration information and wake-up cell priority information to gNB2.

[0275] Step 2: gNB1 obtains the confirmation information sent by gNB2.

[0276] Step 3: gNB2 broadcasts the wake-up signal configuration information and wake-up cell priority information.

[0277] The above wake-up cell priority information can also be configured by gNB2 itself, or sent to the base stations of surrounding cells waiting to be woken up.

[0278] In the embodiment of the present disclosure, base stations exchange wake-up cell priority information so that the terminal can obtain the wake-up cell priority information and then select a suitable cell to perform the wake-up process, thereby avoiding access or residence failure or additional UE power consumption caused by inappropriate wake-up.

[0279] As shown in FIG8 , an embodiment of the present disclosure provides a signal transmission device, which is applied to a terminal and includes a memory 820 , a transceiver 800 , and a processor 810 ;

[0280] The memory 820 is used to store computer programs; the transceiver 800 is used to send and receive data under the control of the processor 810; the processor 810 is used to read the computer program in the memory 820 and perform the following operations:

[0281] Selecting a target wake-up cell from multiple wake-up cells according to the wake-up cell priority information;

[0282] Send a wake-up signal to the target wake-up cell according to the wake-up signal configuration information.

[0283] In FIG8 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits connected together by one or more processors represented by processor 810 and memory represented by memory 820. The bus architecture may also connect various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 800 may be a plurality of components, including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. For different user devices, the user interface 830 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0284] The processor 810 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 810 when performing operations.

[0285] In some embodiments, 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). The processor may also adopt a multi-core architecture.

[0286] The processor calls the computer program stored in the memory to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0287] In some embodiments, the processor further implements the following steps:

[0288] Acquire the wake-up cell priority information according to at least one of pre-configured information, a system message of a currently camped cell, a radio resource control RRC message of the currently camped cell, a system message of a historically camped cell, and an RRC message of a historically camped cell;

[0289] The RRC message is an RRC message obtained when the terminal is in a connected state.

[0290] In some embodiments, the wake-up cell priority information is related to at least one of the following:

[0291] Frequency level;

[0292] Cell level;

[0293] Measurement signal corresponding to the cell;

[0294] Position sorting information of wake-up signal configuration;

[0295] Channel quality information of the cell.

[0296] In some embodiments, the processor further implements the following steps:

[0297] Selecting M wake-up cells with the highest wake-up cell priority from multiple wake-up cells, where M is a positive integer;

[0298] The target wake-up cell is obtained according to the M wake-up cells.

[0299] In some embodiments, the processor further implements the following steps:

[0300] When M is 1, the M wake-up cells are used as the target wake-up cells;

[0301] Alternatively, when M is greater than 1, a cell is randomly selected from the M wake-up cells as the target wake-up cell, or a cell is selected from the M wake-up cells based on terminal implementation as the target wake-up cell, or a wake-up cell with the best channel quality is selected from the M wake-up cells as the target wake-up cell;

[0302] The target wake-up cell meets the cell selection or reselection conditions.

[0303] In some embodiments, the processor further implements the following steps:

[0304] A first timer is started, where the first timer is used to determine whether the target wake-up cell fails to wake up.

[0305] In some embodiments, the processor further implements the following steps:

[0306] If the system information block SIB1 or synchronization broadcast block SSB sent by the target wake-up cell is not detected within the running time of the first timer, it is determined that the target wake-up cell has failed to wake up.

[0307] In some embodiments, the processor further implements the following steps:

[0308] In the case of determining that the target wake-up cell fails to wake up, a wake-up cell other than the target wake-up cell is selected from one or more wake-up cells to perform a wake-up process.

[0309] In some embodiments, the processor further implements the following steps:

[0310] If SIB1 or SSB sent by the target wake-up cell is detected within the running time of the first timer, the first timer is stopped.

[0311] In some embodiments, the processor further implements the following steps:

[0312] During a preset time period, the cell that fails to be awakened is not determined as a wake-up cell and / or a wake-up signal is not sent to the cell that fails to be awakened.

[0313] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment applied to the terminal, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0314] As shown in FIG9 , an embodiment of the present disclosure further provides a signal transmission device, including a memory 920 , a transceiver 900 , and a processor 910 ;

[0315] The memory 920 is used to store computer programs; the transceiver 900 is used to send and receive data under the control of the processor; the processor 910 is used to read the computer program in the memory and perform the following operations:

[0316] Acquire wake-up cell priority information, where the wake-up cell priority information is used by the terminal to select a target wake-up cell from multiple wake-up cells; and send the wake-up cell priority information to the terminal;

[0317] Alternatively, the wake-up cell priority information is sent to the first network side device, or the wake-up cell priority information sent by the first network side device is received, wherein the wake-up cell priority information is used by the terminal to select a target wake-up cell from multiple wake-up cells.

[0318] In FIG9 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits linked together by one or more processors represented by processor 910 and memory represented by memory 920. 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 are therefore not further described herein. The bus interface provides an interface. The transceiver 900 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. The processor 910 is responsible for managing the bus architecture and general processing, and the memory 920 may store data used by the processor 910 when performing operations.

[0319] The processor 910 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). The processor may also adopt a multi-core architecture.

[0320] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment applied to the first network device or the second network side device, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0321] As shown in FIG10 , an embodiment of the present disclosure further provides a signal transmission device, including:

[0322] A first selection unit 1001 is configured to select a target wake-up cell from multiple wake-up cells according to the wake-up cell priority information;

[0323] The first sending unit 1002 is configured to send a wake-up signal to the target wake-up cell according to the wake-up signal configuration information.

[0324] In some embodiments, the apparatus of the present disclosure further includes:

[0325] A second acquiring unit is configured to acquire the wake-up cell priority information according to at least one of pre-configured information, a system message of a currently resident cell, a radio resource control RRC message of the currently resident cell, a system message of a historically resident cell, and an RRC message of a historically resident cell;

[0326] The RRC message is an RRC message obtained when the terminal is in a connected state.

[0327] In some embodiments, the wake-up cell priority information is related to at least one of the following:

[0328] Frequency level;

[0329] Cell level;

[0330] Measurement signal corresponding to the cell;

[0331] Position sorting information of wake-up signal configuration;

[0332] Channel quality information of the cell.

[0333] In some embodiments, the first selection unit includes:

[0334] A selection subunit is configured to select M wake-up cells with the highest wake-up cell priorities from among the multiple wake-up cells, where M is a positive integer;

[0335] The acquisition subunit selects the M wake-up cells as the target wake-up cells when M is 1; or randomly selects a cell from the M wake-up cells as the target wake-up cell when M is greater than 1; or selects a cell from the M wake-up cells as the target wake-up cell based on terminal implementation; or selects a wake-up cell with the best channel quality from the M wake-up cells as the target wake-up cell;

[0336] The target wake-up cell meets the cell selection or reselection conditions.

[0337] In some embodiments, the apparatus of the present disclosure further includes:

[0338] The starting unit is configured to start a first timer after the first sending unit sends the wake-up signal to the target wake-up cell, wherein the first timer is used to determine whether the target wake-up cell fails to wake up.

[0339] In some embodiments, the apparatus of the present disclosure further includes:

[0340] The determining unit is configured to determine that the target wake-up cell has failed to wake up if no system information block SIB1 or synchronization broadcast block SSB sent by the target wake-up cell is detected within the running time of the first timer.

[0341] In some embodiments, the apparatus of the present disclosure further includes:

[0342] The second selecting unit is configured to, when it is determined that the target wake-up cell fails to wake up, select a wake-up cell other than the target wake-up cell from a plurality of wake-up cells to perform a wake-up process.

[0343] In some embodiments, the apparatus of the present disclosure further includes:

[0344] The first processing unit is configured to stop the first timer if a SIB1 or SSB sent by a target wake-up cell is detected within the running time of the first timer.

[0345] In some embodiments, the apparatus of the present disclosure further includes:

[0346] The second processing unit is configured to not determine the cell where the wake-up failed as the wake-up cell and / or not send a wake-up signal to the cell where the wake-up failed within a preset time period.

[0347] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned signal transmission method embodiment applied to the terminal, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0348] As shown in FIG11 , an embodiment of the present disclosure further provides a signal transmission device, including:

[0349] The first acquiring unit 1101 is configured to acquire wake-up cell priority information, where the wake-up cell priority information is used by a terminal to select a target wake-up cell from multiple wake-up cells;

[0350] The second sending unit 1102 is configured to send wake-up cell priority information to the terminal.

[0351] In some embodiments, the apparatus of the present disclosure further includes:

[0352] The third sending unit is used to send a first request message to the second network side device before the first acquisition unit acquires the wake-up cell priority information, wherein the first request message is used to request the sending of the wake-up cell priority information, and the second network side device is a neighbor base station of the first network side device.

[0353] In some embodiments, the apparatus of the present disclosure further includes:

[0354] The fourth sending unit is used to send the wake-up cell priority information to the second network side device when the wake-up cell priority information is configured by the first network side device itself, and the second network side device is a neighbor base station of the first network side device.

[0355] In some embodiments, the wake-up cell priority information is related to at least one of the following:

[0356] Frequency level;

[0357] Cell level;

[0358] Measurement signal corresponding to the cell;

[0359] Position sorting information of wake-up signal configuration;

[0360] Channel quality information of the cell.

[0361] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned signal transmission method embodiment applied to the first network side device, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0362] As shown in FIG12 , an embodiment of the present disclosure further provides a signal transmission device, including:

[0363] The transceiver unit 1201 is configured to send wake-up cell priority information to the first network side device, or receive wake-up cell priority information sent by the first network side device, wherein the wake-up cell priority information is used by the terminal to select a target wake-up cell from multiple wake-up cells.

[0364] In some embodiments, the apparatus of an embodiment of the present disclosure further includes: a third acquisition unit, used to obtain a first request message sent by the first network side device before the transceiver unit sends the wake-up cell priority information to the first network side device, wherein the first request message is used to request the sending of the wake-up cell priority information.

[0365] In some embodiments, the apparatus of the embodiment of the present disclosure further includes: a fifth sending unit, configured to send a response message to the first network side device after the transceiver unit receives the wake-up cell priority information sent by the first network side device.

[0366] In some embodiments, the response message includes a confirmation message of the wake-up cell priority information or suggestion information of the wake-up cell priority information.

[0367] In some embodiments, the wake-up cell priority information is related to at least one of the following:

[0368] Frequency level;

[0369] Cell level;

[0370] Measurement signal corresponding to the cell;

[0371] Position sorting information of wake-up signal configuration;

[0372] Channel quality information of the cell.

[0373] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned signal transmission method embodiment applied to the second network side device, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0374] It should be noted that the division of units in the embodiments of the present disclosure is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present disclosure may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0375] 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 this understanding, the technical solution of the present disclosure is essentially or the part that contributes to the relevant technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0376] In some embodiments of the present disclosure, a processor-readable storage medium is also provided, which stores program instructions, and the program instructions are used to enable the processor to execute all the steps implemented by the method embodiment executed by the above-mentioned terminal or all the steps implemented by the method embodiment executed by the first network side device or the second network side device, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0377] The terminal device involved in the embodiments of the present disclosure may be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called User Equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges voice and / or data with a radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, or a user device, but is not limited in the embodiments of the present disclosure.

[0378] The network device (or network-side device) involved in the embodiments of the present disclosure may be a base station, which may include multiple cells providing services to terminals. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in an access network that communicates with a wireless terminal device through one or more sectors on an air interface, or may be called another name. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management of the air interface. For example, the network device involved in the embodiments of the present disclosure may be a base transceiver station (BTS) in the Global System for Mobile communications (GSM) or code division multiple access (CDMA), a network device (NodeB) in wide-band code division multiple access (WCDMA), an evolutionary Node B (eNB or e-NodeB) in the Long Term Evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), a home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in the embodiments of the present disclosure. In some network structures, 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.

[0379] Network devices and terminal devices can each use one or more antennas for Multiple Input Multiple Output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the configuration and number of antenna combinations, MIMO transmission can be two-dimensional MIMO (2D-MIMO), three-dimensional MIMO (3D-MIMO), full-dimensional MIMO (FD-MIMO), or massive MIMO. It can also use diversity transmission, precoding, or beamforming.

[0380] Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer-usable program code.

[0381] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0382] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0383] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0384] In addition, it should be noted that, in the apparatus and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. Moreover, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but it is not necessary to perform them in chronological order, and some steps can be performed in parallel or independently of each other. For those of ordinary skill in the art, it will be understood that all or any steps or components of the method and apparatus of the present invention can be implemented in any computing device (including processors, storage media, etc.) or a network of computing devices in hardware, firmware, software or a combination thereof, which can be achieved by those of ordinary skill in the art using their basic programming skills after reading the description of the present invention.

[0385] It should be noted that it should be understood that the division of the above modules is merely a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. Moreover, these modules can all be implemented in the form of software called by a processing element; or they can all be implemented in the form of hardware; or some modules can be implemented in the form of software called by a processing element, and some modules can be implemented in the form of hardware. For example, a module can be a separately established processing element, or it can be integrated into a chip of the above-mentioned device. In addition, it can also be stored in the memory of the above-mentioned device in the form of program code, and called by a processing element of the above-mentioned device to perform the functions of the above-mentioned module. The implementation of other modules is similar. In addition, these modules can all or partly be integrated together, or they can be implemented independently. The processing element described here can be an integrated circuit with signal processing capabilities. During implementation, each step of the above method or each module above can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.

[0386] For example, each module, unit, sub-unit or sub-module can be one or more integrated circuits configured to implement the above method, such as one or more application-specific integrated circuits (ASICs), one or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs). For another example, when a module is implemented by scheduling program code through a processing element, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call program code. For another example, these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0387] The terms "first," "second," and the like in the specification and claims of the present disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present disclosure described herein may be implemented in a sequence other than that illustrated or described herein. In addition, the terms "including" and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units need not be limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or devices. In addition, the use of "and / or" in the specification and claims to indicate at least one of the connected objects, for example, A and / or B and / or C, means that seven situations are included: A alone, B alone, C alone, both A and B present, both B and C present, both A and C present, and all A, B, and C present. Similarly, the use of "at least one of A and B" in the specification and claims should be understood to mean "A alone, B alone, or both A and B present."

[0388] Obviously, those skilled in the art may make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is intended to include these modifications and variations.

Claims

1. A signal transmission method, executed by a terminal, the method comprising: Selecting a target wake-up cell from multiple wake-up cells according to the wake-up cell priority information; Sending a wake-up signal to the target wake-up cell according to the wake-up signal configuration information.

2. The method according to claim 1, further comprising: Obtaining the wake-up cell priority information according to at least one of pre-configuration 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; 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 cell priority information is related to at least one of the following: Frequency level; Cell level; The measurement signal corresponding to the cell; The position sorting information of the wake-up signal configuration; The channel quality information of the cell.

4. The method according to claim 1, wherein Selecting a target wake-up cell from multiple wake-up cells according to the wake-up cell priority information includes: Selecting the M wake-up cells with the highest wake-up cell priority from multiple wake-up cells, where M is a positive integer; When M is 1, using the M wake-up cells as the target wake-up cell; or when M is greater than 1, randomly selecting one cell from the M wake-up cells as the target wake-up cell, or selecting one cell from the M wake-up cells based on the terminal implementation as the target wake-up cell, or selecting the wake-up cell with the best channel quality from the M wake-up cells as the target wake-up cell; Wherein, the target wake-up cell meets the cell selection or reselection condition.

5. The method according to claim 1, wherein After sending the wake-up signal to the target wake-up cell, further comprising: Starting a first timer, where the first timer is used to determine whether the target wake-up cell wakes up successfully.

6. The method according to claim 5, further comprising: If the system information block SIB1 or the synchronization broadcast block SSB sent by the target wake-up cell is not detected within the running time of the first timer, determining that the target wake-up cell wakes up unsuccessfully.

7. The method according to claim 5 or 6, further comprising: In the case of determining that the target wake-up cell wakes up unsuccessfully, selecting a wake-up cell other than the target wake-up cell from multiple wake-up cells to perform the wake-up process.

8. The method according to claim 5, further comprising: If the SIB1 or SSB sent by the target wake-up cell is detected within the running time of the first timer, stopping the first timer.

9. The method according to claim 5, further comprising: Within a preset time period, not determining the cell that wakes up unsuccessfully as a wake-up cell and / or not sending a wake-up signal to the cell that wakes up unsuccessfully.

10. A signal transmission method, executed by a first network-side device, the method comprising: Obtaining the wake-up cell priority information, where the wake-up cell priority information is used for the terminal to select a target wake-up cell from multiple wake-up cells; Sending the wake-up cell priority information to the terminal.

11. The method according to claim 10, wherein, Before obtaining the wake-up cell priority information, further comprising: Send a first request message to a second network-side device, where the first request message is used to request sending wake-up cell priority information, and the second network-side device is a neighbor base station of the first network-side device.

12. The method according to claim 10, further comprising: When the wake-up cell priority information is configured for the first network-side device itself, send the wake-up cell priority information to a second network-side device, where the second network-side device is a neighbor base station of the first network-side device.

13. The method according to claim 10, wherein, The wake-up cell priority information is related to at least one of the following: Frequency level; Cell level; Measurement signal corresponding to the cell; Position sorting information configured for the wake-up signal; Channel quality information of the cell.

14. A signal transmission method, performed by a second network-side device, the method comprising: Send wake-up cell priority information to a first network-side device, or receive wake-up cell priority information sent by the first network-side device, where the wake-up cell priority information is used for a terminal to select a target wake-up cell among multiple wake-up cells.

15. The method according to claim 14, wherein, Before sending the wake-up cell priority information to the first network-side device, the method further comprises: Obtain a first request message sent by the first network-side device, where the first request message is used to request sending wake-up cell priority information.

16. The method according to claim 14, wherein, After receiving the wake-up cell priority information sent by the first network-side device, further comprising: Send a response message to the first network-side device.

17. The method according to claim 16, wherein, The response message includes an acknowledgment message of the wake-up cell priority information or a suggestion message of the wake-up cell priority information.

18. The method according to claim 14, wherein The wake-up cell priority information is related to at least one of the following: Frequency level; Cell level; Measurement signal corresponding to the cell; Position sorting information configured for the wake-up signal; Channel quality information of the cell.

19. A signal transmission device, comprising a memory, a transceiver, and a processor; The memory is used to store a computer program; the transceiver is used to send 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: Select a target wake-up cell among multiple wake-up cells according to the wake-up cell priority information; Send a wake-up signal to the target wake-up cell according to the wake-up signal configuration information.

20. The apparatus according to claim 19, wherein, The processor further implements the following steps: Obtain the wake-up cell priority information according to 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.

21. The device according to claim 19, wherein The wake-up cell priority information is related to at least one of the following: Frequency level; Cell level; Measurement signal corresponding to the cell; Position sorting information configured for the wake-up signal; Channel quality information of the cell.

22. The apparatus according to claim 19, wherein, The processor further implements the following steps: Select the M wake-up cells with the highest wake-up cell priority among multiple wake-up cells, where M is a positive integer; When M is 1, use the M wake-up cells as the target wake-up cell; or, when M is greater than 1, randomly select one cell from the M wake-up cells as the target wake-up cell, or, based on the implementation of the terminal, select one cell from the M wake-up cells as the target wake-up cell, or, select the wake-up cell with the best channel quality among the M wake-up cells as the target wake-up cell; Among them, the target wake-up cell meets the cell selection or reselection conditions.

23. The apparatus according to claim 19, wherein, The processor also implements the following steps: Start a first timer, and the first timer is used to determine whether the target wake-up cell fails to wake up.

24. The apparatus according to claim 23, wherein, The processor also implements the following steps: If the system information block SIB1 or the synchronization broadcast block SSB sent by the target wake-up cell is not detected within the running time of the first timer, it is determined that the target wake-up cell fails to wake up.

25. The device according to claim 23 or 24, wherein, The processor also implements the following steps: In the case where it is determined that the target wake-up cell fails to wake up, select a wake-up cell other than the target wake-up cell among the multiple wake-up cells to perform the wake-up process.

26. The device according to claim 23, wherein The processor also implements the following steps: If the SIB1 or SSB sent by the target wake-up cell is detected within the running time of the first timer, stop the first timer.

27. The apparatus according to claim 23, wherein, The processor also implements the following steps: Within a preset time period, do not determine the cell that fails to wake up as a wake-up cell and / or do not send a wake-up signal to the cell that fails to wake up.

28. A signal transmission device, including 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 wake-up cell priority information, and the wake-up cell priority information is used for the terminal to select a target wake-up cell among multiple wake-up cells; Send the wake-up cell priority information to the terminal.

29. The apparatus according to claim 28, wherein The processor also implements the following steps: Send a first request message to a second network-side device, and the first request message is used to request to send wake-up cell priority information, and the second network-side device is a neighbor base station of the first network-side device.

30. The apparatus according to claim 28, wherein, The processor also implements the following steps: In the case where the wake-up cell priority information is configured by the first network-side device itself, send the wake-up cell priority information to the second network-side device, and the second network-side device is a neighbor base station of the first network-side device.

31. A signal transmission device, including 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 cell priority information to a first network-side device, or receive wake-up cell priority information sent by the first network-side device, where the wake-up cell priority information is used for the terminal to select a target wake-up cell among multiple wake-up cells.

32. The apparatus according to claim 31, wherein, The processor also implements the following steps: Obtain a first request message sent by a first network-side device, where the first request message is used to request to send wake-up cell priority information.

33. 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 according to any one of claims 1 to 9, or execute the steps of the signal transmission method according to any one of claims 10 to 13, or execute the steps of the signal transmission method according to any one of claims 14 to 18.

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