Signal transmission method and device

Abstract

The invention provides a signal transmission method and device, and aims to solve the problem of how to select a wake-up cell when UE (User Equipment) can send wake-up signals for a plurality of cells. The method provided by the embodiment of the invention comprises the following steps: selecting a target wake-up cell from a plurality of wake-up cells according to wake-up cell priority information; and sending a wake-up signal to the target wake-up cell according to the wake-up signal configuration information. According to the scheme, the purpose of selecting the appropriate target wake-up cell to execute the wake-up process is achieved, so that access failure or residence failure caused by an improper wake-up process can be effectively avoided, the success rate of subsequent access is improved, and the power consumption of the terminal is reduced.

Description

Technical Field

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

[0002] In order to reduce network energy consumption, a network-side energy-saving mechanism has been introduced in wireless communication systems. In the Network Energy Saving (NES) technology of Release 19, a mechanism of on-demand Synchronization Signal / PBCH (SSB) / System Information Block 1 (SIB1) has been introduced, that is, the network does not send SSB or SIB1 messages in the 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 demand of a User Equipment (UE), the UE can send a wake-up signal to the base station so that the base station can send an SSB signal or an SIB1 message immediately. However, when the UE can send wake-up signals for multiple cells, the UE can only randomly wake up a certain cell and cannot selectively wake up a certain cell. Summary of the Invention

[0003] The purpose of this application is to provide a signal transmission method and apparatus to solve the problem of how the UE selects a wake-up cell when the UE can send wake-up signals for multiple cells.

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

[0005] Select a target wake-up cell from multiple wake-up cells according to the wake-up cell priority information;

[0006] Send a wake-up signal to the target wake-up cell according to the wake-up signal configuration information.

[0007] Optionally, the method of the embodiment of this application further includes:

[0008] Obtain the wake-up cell priority information according to at least one of pre-configuration 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;

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

[0010] Optionally, the wake-up cell priority information is related to at least one of the following:

[0011] Frequency level;

[0012] Cell level;

[0013] Measurement signal corresponding to the cell;

[0014] Location sorting information of the wake-up signal configuration;

[0015] Channel quality information of the cell.

[0016] Optionally, according to the wake-up cell priority information, select a target wake-up cell from multiple wake-up cells, including:

[0017] Select M wake-up cells with the highest wake-up cell priority from multiple wake-up cells, where M is a positive integer;

[0018] Obtain the target wake-up cell according to the M wake-up cells.

[0019] Optionally, the obtaining the target wake-up cell according to the M wake-up cells includes:

[0020] When M is 1, use the M wake-up cells as the target wake-up cell;

[0021] Or, when M is greater than 1, randomly select a cell from the M wake-up cells as the target wake-up cell, or, based on the terminal implementation, select a cell from the M wake-up cells as the target wake-up cell, or, select a wake-up cell with the best channel quality from the M wake-up cells as the target wake-up cell;

[0022] Wherein, the target wake-up cell meets the cell selection or reselection condition.

[0023] Optionally, after sending the wake-up signal to the target wake-up cell, further include:

[0024] Start a first timer, and the first timer is used to determine whether the target wake-up cell fails to wake up.

[0025] Optionally, the method of the embodiment of the present application further includes:

[0026] If the System Information Block SIB1 or Synchronization Signal Block SSB sent by the target wake-up cell is not detected within the running time of the first timer, determine that the target wake-up cell fails to wake up.

[0027] Optionally, the method of the embodiment of the present application further includes:

[0028] In the case of determining that the target wake-up cell fails to wake up, select a wake-up cell other than the target wake-up cell from multiple wake-up cells to perform the wake-up process.

[0029] Optionally, the method according to an embodiment of the present application further includes:

[0030] 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.

[0031] Optionally, the method according to an embodiment of the present application further includes:

[0032] Within a preset time period, do not determine the cell with wake-up failure as a wake-up cell and / or do not send a wake-up signal to the cell with wake-up failure.

[0033] An embodiment of the present application further provides a signal transmission method, which is executed by a first network-side device, and the method includes:

[0034] Obtain wake-up cell priority information, where the wake-up cell priority information is used for a terminal to select a target wake-up cell from multiple wake-up cells;

[0035] Send the wake-up cell priority information to the terminal.

[0036] Optionally, before obtaining the wake-up cell priority information, it further includes:

[0037] Send a first request message to a second network-side device, where the first request message is used to request to send the wake-up cell priority information, and the second network-side device is a neighbor base station of the first network-side device.

[0038] Optionally, the method according to an embodiment of the present application further includes:

[0039] When the wake-up cell priority information is configured by 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.

[0040] Optionally, the wake-up cell priority information is related to at least one of the following:

[0041] Frequency level;

[0042] Cell level;

[0043] Measurement signal corresponding to the cell;

[0044] Position sorting information configured by the wake-up signal;

[0045] Channel quality information of the cell.

[0046] An embodiment of the present application further provides a signal transmission method, which is executed by a second network-side device, and the method includes:

[0047] 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 from multiple wake-up cells.

[0048] Optionally, before sending the wake-up cell priority information to the first network-side device, the method further includes:

[0049] Obtain a first request message sent by the first network-side device, where the first request message is used to request to send the wake-up cell priority information.

[0050] Optionally, after receiving the wake-up cell priority information sent by the first network-side device, it further includes:

[0051] Send a response message to the first network-side device.

[0052] Optionally, the response message includes an acknowledgement message of the wake-up cell priority information or a suggestion message of the wake-up cell priority information.

[0053] Optionally, the wake-up cell priority information is related to at least one of the following:

[0054] Frequency level;

[0055] Cell level;

[0056] Measurement signal corresponding to the cell;

[0057] Position sorting information configured for the wake-up signal;

[0058] Channel quality information of the cell.

[0059] An embodiment of this application further provides a signal transmission device, including a memory, a transceiver, and a processor;

[0060] The memory is used to store a computer program; the transceiver is used to transmit and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations:

[0061] Select a target wake-up cell from multiple wake-up cells according to the wake-up cell priority information;

[0062] Send a wake-up signal to the target wake-up cell according to the wake-up signal configuration information.

[0063] Optionally, the processor further implements the following steps:

[0064] 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;

[0065] Wherein, the RRC message is an RRC message obtained when the terminal is in the connected state.

[0066] Optionally, the wake-up cell priority information is related to at least one of the following:

[0067] Frequency level;

[0068] Cell level;

[0069] Measurement signals corresponding to the cell;

[0070] Position sorting information configured for the wake-up signal;

[0071] Channel quality information of the cell.

[0072] Optionally, the processor further implements the following steps:

[0073] Select M wake-up cells with the highest wake-up cell priority among multiple wake-up cells, where M is a positive integer;

[0074] Obtain the target wake-up cell according to the M wake-up cells.

[0075] Optionally, the processor further implements the following steps:

[0076] When M is 1, use the M wake-up cells as the target wake-up cell;

[0077] 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 one wake-up cell with the best channel quality from the M wake-up cells as the target wake-up cell;

[0078] Wherein, the target wake-up cell meets the cell selection or reselection conditions.

[0079] Optionally, the processor further implements the following steps:

[0080] Start a first timer, which is used to determine whether the target wake-up cell fails to wake up.

[0081] Optionally, the processor further implements the following steps:

[0082] If the System Information Block SIB1 or Synchronization Signal 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.

[0083] Optionally, the processor further implements the following steps:

[0084] In the case of determining that the target wake-up cell fails to wake up, select a wake-up cell other than the target wake-up cell from multiple wake-up cells to perform the wake-up process.

[0085] Optionally, the processor further implements the following steps:

[0086] 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.

[0087] Optionally, the processor further implements the following steps:

[0088] Within a preset time period, do not determine a cell with a wake-up failure as a wake-up cell and / or do not send a wake-up signal to a cell with a wake-up failure.

[0089] An embodiment of the present application further provides a signal transmission device, including a memory, a transceiver, and a processor;

[0090] The memory is used to store a computer program; the transceiver is used to transmit and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations:

[0091] Obtain 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;

[0092] Send the wake-up cell priority information to the terminal.

[0093] Optionally, the processor further implements the following steps:

[0094] Send a first request message to a second network-side device, where 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.

[0095] Optionally, the processor further implements the following steps:

[0096] 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 a second network-side device, where the second network-side device is a neighbor base station of the first network-side device.

[0097] An embodiment of the present application further provides a signal transmission device, including a memory, a transceiver, and a processor;

[0098] The memory is used to store a computer program; the transceiver is used to transmit and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations:

[0099] 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.

[0100] Optionally, the processor further implements the following steps:

[0101] Obtain a first request message sent by the first network-side device, where the first request message is used to request to send wake-up cell priority information.

[0102] An embodiment of the present application further provides a signal transmission device, including:

[0103] A first selection unit, configured to select a target wake-up cell among multiple wake-up cells according to the wake-up cell priority information;

[0104] A first sending unit, configured to send a wake-up signal to the target wake-up cell according to the wake-up signal configuration information.

[0105] An embodiment of the present application further provides a signal transmission device, including:

[0106] A first obtaining unit, configured to obtain wake-up cell priority information, where the wake-up cell priority information is used for a terminal to select a target wake-up cell among multiple wake-up cells;

[0107] A second sending unit, configured to send the wake-up cell priority information to the terminal.

[0108] An embodiment of the present application further provides a signal transmission device, including:

[0109] A transceiver unit, configured to 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.

[0110] An embodiment of the present application further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the steps of the signal transmission method as described above.

[0111] The above technical solution of the present application has at least the following beneficial effects:

[0112] In the embodiments of the present application, according to the wake-up cell priority information, a target wake-up cell is selected from multiple wake-up cells; according to the wake-up signal configuration information, a wake-up signal is sent to the target wake-up cell. Thus, based on the wake-up cell priority information, a wake-up cell with a higher priority can be selected as the target wake-up cell, so that the purpose of selecting a suitable target wake-up cell to execute the wake-up process is achieved through the above solution, 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0113] Figure 1 A structural diagram of a network system to which the embodiments of the present application can be applied;

[0114] Figure 2 A schematic flowchart of the signal transmission method according to an embodiment of the present application;

[0115] Figure 3 An interaction schematic diagram of the signal transmission method according to an embodiment of the present application;

[0116] Figure 4 An interaction schematic diagram of the signal transmission method according to an embodiment of the present application;

[0117] Figure 5 A schematic flowchart of the signal transmission method according to an embodiment of the present application;

[0118] Figure 6 A schematic flowchart of the signal transmission method according to an embodiment of the present application;

[0119] Figure 7 An interaction schematic diagram of the signal transmission method according to an embodiment of the present application;

[0120] Figure 8 A block diagram of the signal transmission device according to an embodiment of the present application;

[0121] Figure 9 A block diagram of the signal transmission device according to an embodiment of the present application;

[0122] Figure 10 A schematic diagram of the modules of the signal transmission device according to an embodiment of the present application;

[0123] Figure 11 A schematic diagram of the modules of the signal transmission device according to an embodiment of the present application;

[0124] Figure 12 A schematic diagram of the modules of the signal transmission device according to an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0125] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0126] The terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein, for example, can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0127] The term "and / or" in the embodiments of the present application describes the association relationship of associated objects and indicates that three relationships can 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 represents an "or" relationship between the associated objects before and after. The term "plurality" in the embodiments of the present application refers to two or more, and other quantifiers are similar thereto.

[0128] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0129] Figure 1 The block diagram of a wireless communication system to which the embodiments of the present application can be applied is shown. The wireless communication system includes a terminal device 11 and a network-side device (or network device) 12. Among them, the terminal device 11 can also be referred to as a terminal or a user terminal (User Equipment, UE). It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can be a base station or a core network. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0130] To enable those skilled in the art to better understand the embodiments of the present application, the following explanations are provided first.

[0131] (1) The function of SSB;

[0132] There is basic synchronization information of the base station in the SSB. The UE obtains the most basic synchronization information and downlink channel quality by measuring the SSB. The SSB information is sent according to a certain period and can be repeatedly sent within the period.

[0133] (2) The function of SIB1;

[0134] The SIB1 message contains basic information for the UE to access the cell, such as the Public Land Mobile Network (PLMN), access control information, Random Access Channel (RACH) configuration information, etc. The SIB1 message is repeatedly sent according to a certain period.

[0135] (3) The basic concept of the R19 on-demand SSB scenario

[0136] In the related art, the network always sends the SSB according to a predefined period, and the SSB message includes the synchronization information for the UE to access this cell. To save energy on the network side, the base station can turn off the transmission of the SSB message or send sparse SSBs, which also causes the UE in the connected state to be unable to access this cell and has an impact on cell coverage and network capacity.

[0137] (4) The basic concept of the R19 on-demand SIB1 scenario;

[0138] In the related art, the network always sends the SIB1 message according to a predefined period, and the SIB1 message includes basic information for the UE to access this cell, such as PLMN and RA configuration information. To save energy on the network side, the base station can turn off the transmission of the SIB1 message, which also causes the UE to be unable to camp on this cell and has an impact on cell coverage and network capacity.

[0139] When the UE is in the idle / inactive state, if a certain cell is in the energy-saving state and does not send the SIB1 message, but the UE detects this cell based on the SSB information of the cell and wants to access this cell, then this cell needs to start the transmission of SBI1 based on a certain triggering mechanism so that the UE can camp on the corresponding cell.

[0140] (5) Cell selection / reselection mechanism;

[0141] When the UE performs cell selection and reselection, the basic principle is to select a cell with a higher priority frequency to camp on, and the channel quality of this cell is the best among the cells in the same frequency band.

[0142] As Figure 2 shown, an embodiment of the present application provides a signal transmission method, including:

[0143] Step 201: Select a target wake-up cell from multiple wake-up cells according to the wake-up cell priority information.

[0144] In the embodiment of the present application, the above wake-up cell priority information can be configured by the network side or determined by the terminal itself. The wake-up cell priority information is used to indicate 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.

[0145] Optionally, 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.

[0146] Optionally, the above target wake-up cell meets the conditions for cell selection and / or reselection.

[0147] Step 202: Send a wake-up signal to the target wake-up cell according to the wake-up signal configuration information.

[0148] Optionally, the wake-up signal configuration information includes: time domain resources, frequency domain resources, sequence information, and / or transmission period, etc. of the wake-up signal.

[0149] In the embodiment of the present application, a target wake-up cell is selected from multiple wake-up cells according to the wake-up cell priority information; a wake-up signal is sent to the target wake-up cell according to the wake-up signal configuration information. Thus, based on the wake-up cell priority information, a wake-up cell with a higher priority can be selected as the target wake-up cell, so as to achieve the purpose of selecting a suitable target wake-up cell to execute the wake-up process through the above solution, thereby effectively avoiding access failure or residence failure caused by inappropriate wake-up processes, improving the subsequent access success rate and reducing the power consumption of the terminal.

[0150] It should be noted that the signal transmission method of the embodiment of the present application is applicable to scenarios where there is one or more wake-up cells.

[0151] In the case of there being one wake-up cell, a target wake-up cell is selected according to the wake-up cell priority information and whether the wake-up cell meets the target conditions, and the target conditions include meeting the conditions for cell selection and / or reselection. For example, if the wake-up cell has the highest wake-up cell priority or is higher than the preset priority, and the wake-up cell meets the cell selection or reselection conditions, then this wake-up cell is determined as the target wake-up cell.

[0152] Optionally, the method according to the embodiment of the present application further includes:

[0153] 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) of the current resident cell, system messages of the historical resident cell, and RRC messages of the historical resident cell;

[0154] Wherein, the RRC message is the RRC message obtained when the terminal is in the connected state.

[0155] The RRC message can be at least one of an RRC reconfiguration message or an RRC release message.

[0156] In the embodiment of the present application, the system message includes a master information block (MIB) message and / or a system information block (SIB) message.

[0157] Optionally, the method according to the embodiment of the present application further includes:

[0158] Obtain the wake-up signal configuration information according to at least one of pre-configured information, system messages of the current resident cell, RRC messages of the current resident cell, system messages of the historical resident cell, and RRC messages of the historical resident cell.

[0159] It should be noted that the above wake-up signal configuration information and wake-up cell priority information can be obtained through the same message or different messages, and the present application does not make specific limitations on this.

[0160] Optionally, the wake-up cell priority information is related to at least one of the following:

[0161] The first item: frequency level;

[0162] Here, the above wake-up cell priority information may include priority information based on the frequency level. For example, the above wake-up cell priority information can be indicated by the frequency level, and the higher the frequency level, the higher the priority of the wake-up cell corresponding to the frequency.

[0163] The second item: cell level.

[0164] Here, the wake-up cell priority information includes priority information based on the cell level. For example, the above wake-up cell priority information can be indicated by the cell level, and the higher the cell level, the higher the priority of the wake-up cell corresponding to the cell.

[0165] Item 3: Measurement signals corresponding to the cell.

[0166] Here, the wake-up cell priority information includes priority information based on the measurement signals corresponding to the cell. For example, the wake-up cell priority information is indicated by the measurement signals corresponding to the cell. The higher the quality of the wake-up signal, the higher the priority of the wake-up cell corresponding to the cell.

[0167] Optionally, the quality of the above measurement signals can be represented 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.

[0168] Item 4: Location sorting information of the wake-up signal configuration.

[0169] Here, the above wake-up cell priority information includes priority information determined based on the location sorting information of the wake-up signal configuration. Optionally, the wake-up signal configuration information includes the configuration of multiple wake-up information. The wake-up cell priority information can be indicated by the location sorting of the wake-up signal configuration in the wake-up information configuration information. For example, the higher the priority of the wake-up cell corresponding to the cell or frequency corresponding to the wake-up signal configuration, the earlier the sorting, or the higher the priority of the wake-up cell corresponding to the cell or frequency corresponding to the wake-up signal configuration, the later the sorting.

[0170] Item 5: Channel quality information of the cell.

[0171] Optionally, 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).

[0172] Here, the above wake-up cell priority information includes priority information determined based on the channel quality information of the cell. Optionally, 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.

[0173] Optionally, according to the wake-up cell priority information, selecting a target wake-up cell from multiple wake-up cells includes:

[0174] Selecting the M wake-up cells with the highest wake-up cell priority from multiple wake-up cells, where M is a positive integer;

[0175] Obtaining the target wake-up cell according to the M wake-up cells.

[0176] As an implementation manner, the obtaining the target wake-up cell according to the M wake-up cells includes:

[0177] When M is 1, taking the M wake-up cells as the target wake-up cell;

[0178] When M is greater than 1, randomly selecting a cell from the M wake-up cells as the target wake-up cell, or selecting a cell from the M wake-up cells as the target wake-up cell based on the terminal implementation, or selecting the wake-up cell with the best channel quality from the M wake-up cells as the target wake-up cell;

[0179] Wherein, the target wake-up cell meets the cell selection or reselection condition, and / or the channel quality of the target wake-up cell is higher than a certain threshold.

[0180] Based on the above solution, in the embodiments of the present application, when the cell selection or reselection condition is met, the cell with the highest priority can be selected as the target wake-up cell. If there are multiple wake-up cells that can be selected for the same priority, the terminal can select a wake-up cell as the target wake-up cell based on the internal implementation or randomly from the multiple wake-up cells.

[0181] For example, when the cell selection or reselection condition is met, the cell with the highest frequency priority can be selected as the target wake-up cell. If there are multiple wake-up cells that can be selected for the same frequency priority, the cell with the best channel quality is selected as the target wake-up cell. Or, the cell with the highest priority is selected as the target wake-up cell from the cells whose channel quality meets the cell selection or reselection condition.

[0182] Optionally, after sending the wake-up signal to the target wake-up cell, further includes:

[0183] Starting a first timer, where the first timer is used to determine whether the target wake-up cell fails to wake up.

[0184] Here, based on the above-mentioned first timer, it is possible to facilitate the terminal to determine whether the target wake-up cell fails to wake up, so as to facilitate subsequent corresponding processing operations.

[0185] Optionally, the method of the embodiment of the present application further includes:

[0186] If the System Information Block SIB1 and / or Synchronization Signal Block SSB sent by the target wake-up cell are not detected within the running time of the first timer, it is determined that the target wake-up cell fails to wake up.

[0187] In the embodiment of the present application, after the target wake-up cell receives the wake-up signal, it needs to send SIB1 and / or SSB based on the wake-up signal. If the terminal does not receive SIB1 and / or SSB within a certain time, it is determined that the target cell fails to wake up. By starting this timer, the duration for the terminal to wait for the wake-up cell to send SIB1 and / or SSB can be controlled.

[0188] Optionally, the method of the embodiment of the present application further includes:

[0189] In the case of determining that the target wake-up cell fails to wake up, select a wake-up cell other than the target wake-up cell among multiple wake-up cells to perform the wake-up process.

[0190] Here, in the case of the target wake-up cell failing to wake up, this target wake-up cell may not be successfully woken up within a certain time period. For example, the channel quality of this target wake-up cell is relatively low within a certain time period. Therefore, by selecting a wake-up cell other than the target wake-up cell to perform the wake-up process, it can effectively avoid access failure or residence failure caused by an inappropriate wake-up process, improve the subsequent access success rate, and reduce the power consumption of the terminal.

[0191] Optionally, the method of the embodiment of the present application further includes:

[0192] 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.

[0193] 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 wakes up successfully, and the first timer is stopped.

[0194] Optionally, the method of the embodiment of the present application further includes:

[0195] Within a preset time period, do not determine a cell with a wake-up failure as a wake-up cell and / or do not send a wake-up signal to a cell with a wake-up failure.

[0196] Here, the cell with wake-up failure may not be successfully woken up within a certain period of time. For example, the channel quality of the cell with wake-up failure is relatively low within a certain period of time. Therefore, by determining the cell with wake-up failure as a cell not within the wake-up range and / or not sending a wake-up signal to the cell with wake-up failure within a preset period of time, it is possible to effectively avoid access failure or residence failure caused by an inappropriate wake-up process, improve the success rate of subsequent access, and reduce the power consumption of the terminal.

[0197] Optionally, the cell in the embodiment of the present application includes a Network Energy Saving (NES) cell. The solution in the embodiment of the present application is applicable to a terminal in the idle state or the inactive state to wake up the NES cell to send an SIB message, or the solution in the embodiment of the present application is applicable to a terminal in the RRC connected state to wake up the NES cell to send an SSB.

[0198] The signal transmission method of the present application will be described below with reference to embodiments.

[0199] Embodiment 1:

[0200] In the embodiment of the present application, an Idle / inactive UE selects a suitable cell to send a wake-up signal based on the wake-up cell priority information for sending an SIB1 message or an SSB of the cell. When sending the wake-up signal, a timer (i.e., the above-mentioned first timer) is started. If no SIB1 message is obtained within the running time of the first timer, the UE stops sending the SIB-based wake-up signal (i.e., the wake-up information is used to indicate the cell to send an SIB) to the cell within a preset period of time and selects the next cell that can be woken up.

[0201] As Figure 3 shown, it includes:

[0202] Step 1: The Idle / inacative UE obtains the wake-up signal configuration information and the wake-up cell priority information through pre-configured information, system messages, or RRC messages.

[0203] Optionally, the above system message includes the system message of the current resident cell or the system message of the historical resident cell, and the above RRC message includes the RRC message of the current resident cell or the RRC message of the historical resident cell.

[0204] Optionally, the above wake-up cell priority information includes at least one of the following:

[0205] Priority information for the wake-up cell based on the frequency level;

[0206] Priority information for the wake-up cell based on the cell level;

[0207] Priority information for waking up a cell based on a measurement signal, that is, when a UE selects a cell for waking up, the higher the quality of its measurement signal, the higher the priority of waking up the cell;

[0208] Priority information for waking up a cell based on location sorting information configured by a wake-up signal.

[0209] Step 2: The UE selects a target wake-up cell based on the wake-up cell priority information, uses a selection criterion to select the target wake-up cell, and sends a wake-up signal.

[0210] Optionally, the selection criterion includes at least one of the following:

[0211] Select the cell with the highest priority (such as selecting the cell with the highest frequency priority); if there are multiple cells available for the same frequency priority, the UE selects the cell with the best channel quality (optionally, the channel quality is sorted according to the R value) or randomly selects a cell whose channel quality meets certain conditions;

[0212] Randomly select a cell whose channel quality meets the conditions for cell selection and / or reselection;

[0213] Randomly select a cell whose channel quality is higher than a certain threshold;

[0214] It should be noted that the channel quality of the wake-up cell or the cell sending the wake-up signal in the embodiment of the present application meets the threshold for cell selection and reselection, or meets a predefined threshold.

[0215] Step 3: After the UE sends a wake-up signal to the target wake-up cell, start a first timer. If the SIB1 information of the corresponding cell is not detected within the time of the first timer, it is considered that this wake-up fails. Select other cells to perform wake-up and will not select this cell to perform wake-up within the second time (i.e., the above preset time period). If the SIB1 information of the corresponding cell is detected within the time of the first timer, stop the timer.

[0216] Step 4: After the UE obtains the SIB1 information, perform a resident or access operation for the target wake-up cell.

[0217] Embodiment 2:

[0218] The connected-state 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, start a first timer. If the SSB message is not obtained within the time of the first timer, the UE stops sending the SSB-based wake-up signal (i.e., the wake-up signal is used to instruct the cell to send SSB) to this cell within the preset time period, and selects the next cell that can be woken up.

[0219] Such as Figure 4As shown in the figure, it includes:

[0220] Step 1: The idle / inactive UE obtains the wake-up signal configuration information and the wake-up cell priority information through pre-configured information, system messages, or RRC messages.

[0221] Optionally, the above system messages include the system messages of the current resident cell or the system messages of the historical resident cell, and the above RRC messages include the RRC messages of the current resident cell or the RRC messages of the historical resident cell.

[0222] Optionally, the above wake-up cell priority information includes at least one of the following:

[0223] Priority information for the wake-up cell based on the frequency level;

[0224] Priority information for the wake-up cell based on the cell level;

[0225] Priority information for the wake-up cell based on the measurement signal, that is, if the UE selects a cell for wake-up, the higher the quality of its measurement signal, the higher the priority of the cell being woken up;

[0226] Priority information for the wake-up cell based on the position sorting information of the wake-up signal configuration.

[0227] Step 2: The UE selects the target wake-up cell based on the wake-up cell priority information and sends a wake-up signal using the following selection criteria.

[0228] Optionally, the selection criteria include at least one of the following:

[0229] Select the cell with the highest priority (such as selecting the cell with the highest frequency priority); if there are multiple cells available for the same frequency priority, the UE selects the cell with the best channel quality (optionally, the channel quality is sorted according to the R value) or randomly selects a cell whose channel quality meets certain conditions;

[0230] Randomly select a cell whose channel quality meets the conditions of cell selection and / or reselection;

[0231] Randomly select a cell whose channel quality is higher than a certain threshold;

[0232] It should be noted that the channel quality of the wake-up cell or the cell sending the wake-up signal in the embodiments of the present application meets the cell selection and reselection threshold, or meets a predefined threshold.

[0233] Step 3: After the UE sends a wake-up signal to the target wake-up cell, start the first timer. If the SSB information of the corresponding cell is not detected within the time of the first timer, it is considered that the wake-up fails this time. Select other cells to perform wake-up and will not select this cell to perform wake-up within the second time (i.e., the above preset time period). If the SSB information of the corresponding cell is detected within the time of the first timer, stop the timer.

[0234] Step 4: After the UE obtains the SSB information, perform subsequent access operations for the target wake-up cell.

[0235] In the embodiments of the present application, according to at least one of the wake-up cell priority information and the channel quality information of the wake-up cell, a target wake-up cell is selected from multiple wake-up cells; according to the wake-up signal configuration information, a wake-up signal is sent to the target wake-up cell. Thus, through the above solution, the purpose of selecting a suitable target wake-up cell to perform the wake-up process is achieved, which can effectively avoid access failure or residence failure caused by inappropriate wake-up processes, improve the success rate of subsequent access, and reduce the power consumption of the terminal.

[0236] As Figure 5 shown, the embodiments of the present application further provide a signal transmission method, which is executed by a first network-side device. The method includes:

[0237] Step 501: Obtain 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.

[0238] Optionally, obtain the wake-up cell priority information through at least one of the Xn interface, the F1 interface, and the core network interface.

[0239] For example, the first network-side device may specifically be a base station. The first network-side device can obtain the above wake-up cell priority information by configuring the wake-up cell priority information by itself, or obtain the wake-up cell priority information from a second network-side device (a neighbor base station of the first network-side device), or obtain the wake-up cell priority information from a core network device. Another example is that the above first network-side device is specifically a Distributed Unit (DU), and the DU obtains the wake-up cell priority information from a Centralized Unit (CU) through the F1 interface; or, the above first network-side device is specifically a CU, and the CU obtains the wake-up cell priority information from the DU through the F1 interface.

[0240] Step 502: Send the wake-up cell priority information to the terminal.

[0241] The wake-up cell priority information is used to indicate the priority of a cell being woken up. For example, the higher the wake-up cell priority, the higher the priority of the corresponding cell being woken up.

[0242] In the embodiments of the present application, the 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 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, 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.

[0243] Optionally, the method in the embodiments of the present application further includes:

[0244] Sending wake-up signal configuration information to the terminal.

[0245] The wake-up signal configuration information includes information such as the time-domain resource, frequency-domain resource, sequence information, and / or transmission period of the wake-up signal. With the wake-up signal configuration information, it is convenient for the terminal to send a wake-up signal to the selected target wake-up cell.

[0246] Optionally, before obtaining the wake-up cell priority information, it further includes:

[0247] Sending a first request message to a second network-side device, where the first request message is used to request to send the wake-up cell priority information, and the second network-side device is a neighbor base station of the first network-side device.

[0248] Optionally, 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.

[0249] Optionally, the method in the embodiments of the present application further includes:

[0250] When the wake-up cell priority information is configured by the first network-side device itself, sending 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.

[0251] Here, when the first network-side device configures the wake-up cell priority information by itself, the wake-up cell priority information is sent to the base station (i.e., the second network-side device) of the cell waiting to be woken up, so that the second network-side device can send the wake-up cell priority information to the terminal subsequently.

[0252] Optionally, the wake-up cell priority information is related to at least one of the following:

[0253] Frequency level;

[0254] Cell level;

[0255] Measurement signal corresponding to the cell;

[0256] Position sorting information of the wake-up signal configuration;

[0257] Channel quality information of the cell.

[0258] It should be noted that the wake-up cell priority information has been described in detail in the method embodiments on the terminal side, and will not be elaborated here.

[0259] In the embodiments of the present application, the wake-up cell priority information is sent to the terminal, so that the terminal can select a target wake-up cell from multiple 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, and effectively avoiding access failure or residence failure caused by inappropriate wake-up processes, improving the subsequent access success rate and reducing the power consumption of the terminal.

[0260] Such as Figure 6 As shown, the embodiments of the present application further provide a signal transmission method, which is executed by a second network-side device. The method includes:

[0261] Step 601: Send the wake-up cell priority information to the first network-side device, or receive the 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 from multiple wake-up cells.

[0262] For example, the first network-side device may specifically be a base station, the second network-side device is a neighbor base station of the first network-side device, and the second network-side device sends the wake-up cell priority information to the first network-side device. Another example is that the first network-side device is specifically a distributed unit DU, the second network-side device is a CU, and the CU sends the wake-up cell priority information to the DU through the F1 interface; or the first network-side device is specifically a CU, the second network-side device is a DU, and the DU sends the wake-up cell priority information to the CU through the F1 interface.

[0263] In the embodiments of the present application, sending the wake-up cell priority information to the first network-side device enables the first network-side device to send the wake-up cell priority information to the terminal, so that the terminal can select a target wake-up cell from multiple 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, and effectively avoiding access failure or residence failure caused by inappropriate wake-up processes, improving the subsequent access success rate and reducing the power consumption of the terminal.

[0264] Optionally, before sending the wake-up cell priority information to the first network-side device, the method further includes:

[0265] Obtain a first request message sent by the first network-side device, where the first request message is used to request the sending of the wake-up cell priority information.

[0266] Optionally, after receiving the wake-up cell priority information sent by the first network-side device, it further includes:

[0267] Send a response message to the first network-side device.

[0268] Optionally, 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.

[0269] Here, after the first network-side device receives the acknowledgment message, it determines that the second network-side device has received the wake-up cell priority information. After the first network-side device receives the suggestion message, it can make corresponding adjustments to the wake-up cell priority information based on the suggestion message.

[0270] Optionally, the wake-up cell priority information is related to at least one of the following:

[0271] Frequency level;

[0272] Cell level;

[0273] Measurement signal corresponding to the cell;

[0274] Position sorting information configured by the wake-up signal;

[0275] Channel quality information of the cell.

[0276] It should be noted that the wake-up cell priority information has been described in detail in the method embodiments on the terminal side and will not be elaborated here.

[0277] The process of inter-base station interaction of the wake-up cell priority information will be described below.

[0278] As Figure 7 shown, it includes:

[0279] Step 0: gNB1 obtains a request message from gNB2 (i.e., the above-mentioned first request message), and this request message is used to request the sending of the wake-up cell priority information.

[0280] This step is an optional step.

[0281] Step 1: gNB1 sends the wake-up signal configuration information and the wake-up cell priority information to gNB2.

[0282] Step 2: gNB1 obtains the acknowledgment information sent by gNB2.

[0283] Step 3: gNB2 broadcasts the wake-up signal configuration information and the wake-up cell priority information.

[0284] The above wake-up cell priority information can also be configured by gNB2 itself or sent to the base stations of the surrounding cells waiting to be woken up.

[0285] In the embodiments of the present application, the base stations exchange the wake-up cell priority information so that the terminal can obtain the wake-up cell priority information, and then can select a suitable cell to perform the wake-up process, avoiding access or residence failures or additional UE power consumption caused by inappropriate wake-up.

[0286] As Figure 8 shown, the embodiments of the present application provide a signal transmission device, which is applied to a terminal and includes a memory 820, a transceiver 800, and a processor 810;

[0287] The memory 820 is used to store computer programs; the transceiver 800 is used to transmit and receive data under the control of the processor 810; the processor 810 is used to read the computer programs in the memory 820 and perform the following operations:

[0288] Select a target wake-up cell from multiple wake-up cells according to the wake-up cell priority information;

[0289] Send a wake-up signal to the target wake-up cell according to the wake-up signal configuration information.

[0290] Among them, in Figure 8 , the bus architecture may include any number of interconnected buses and bridges, specifically, various circuits represented by one or more processors represented by the processor 810 and the memory represented by the memory 820 are linked together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, so they will not be further described herein. The bus interface provides an interface. The transceiver 800 may be multiple components, that is, including a transmitter and a receiver, and provides a unit for communicating with various other devices on the transmission medium, and these transmission mediums include wireless channels, wired channels, optical cables and other transmission mediums. For different user devices, the user interface 830 may also be an interface capable of externally connecting or internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

[0291] The processor 810 is responsible for managing the bus architecture and general processing, and the memory 820 can store the data used by the processor 810 when performing operations.

[0292] Optionally, the processor 810 may be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a CPLD (Complex Programmable Logic Device). The processor may also adopt a multi-core architecture.

[0293] The processor is used to execute any one of the methods provided in the embodiments of the present application according to the obtained executable instructions by calling the computer program stored in the memory. The processor and the memory may also be physically separated.

[0294] Optionally, the processor further implements the following steps:

[0295] 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;

[0296] Wherein, the RRC message is the RRC message obtained when the terminal is in the connected state.

[0297] Optionally, the wake-up cell priority information is related to at least one of the following:

[0298] Frequency level;

[0299] Cell level;

[0300] Measurement signal corresponding to the cell;

[0301] Position sorting information configured for the wake-up signal;

[0302] Channel quality information of the cell.

[0303] Optionally, the processor further implements the following steps:

[0304] Select M wake-up cells with the highest wake-up cell priority from multiple wake-up cells, where M is a positive integer;

[0305] Obtain the target wake-up cell according to the M wake-up cells.

[0306] Optionally, the processor further implements the following steps:

[0307] When M is 1, use the M wake-up cells as the target wake-up cell;

[0308] Alternatively, 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 the implementation of the terminal, or select the wake-up cell with the best channel quality from the M wake-up cells as the target wake-up cell;

[0309] Among them, the target wake-up cell meets the cell selection or reselection conditions.

[0310] Optionally, the processor further implements the following steps:

[0311] Start a first timer, which is used to determine whether the target wake-up cell fails to wake up.

[0312] Optionally, the processor further implements the following steps:

[0313] If the System Information Block SIB1 or Synchronization Signal 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.

[0314] Optionally, the processor further implements the following steps:

[0315] 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 one or more wake-up cells to perform the wake-up process.

[0316] Optionally, the processor further implements the following steps:

[0317] 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.

[0318] Optionally, the processor further implements the following steps:

[0319] 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.

[0320] It should be noted here that the above device provided by the embodiments of the present application can implement all the method steps implemented by the method embodiments applied to the terminal, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment.

[0321] As Figure 9 shown, the embodiments of the present application further provide a signal transmission device, including a memory 920, a transceiver 900, and a processor 910;

[0322] A memory 920 for storing computer programs; a transceiver 900 for transmitting and receiving data under the control of the processor; a processor 910 for reading the computer programs in the memory and performing the following operations:

[0323] Obtain wake-up cell priority information, which 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;

[0324] Alternatively, send the wake-up cell priority information to a first network-side device, or receive the 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.

[0325] Wherein, in Figure 9 The bus architecture may include any number of interconnected buses and bridges, specifically various circuits of one or more processors represented by the processor 910 and the memory represented by the memory 920 are linked together. The bus architecture can also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, so they will not be further described herein. The bus interface provides an interface. The transceiver 900 may be multiple components, that is, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium, and these transmission mediums include wireless channels, wired channels, optical fiber cables and other transmission mediums. The processor 910 is responsible for managing the bus architecture and general processing, and the memory 920 can store the data used by the processor 910 when performing operations.

[0326] 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), and the processor may also adopt a multi-core architecture.

[0327] It should be noted here that the above device provided by the embodiment of the present application can implement all the method steps implemented by the above method embodiments applied to the first network device or the second network-side device, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment.

[0328] As Figure 10 shown, the embodiment of the present application also provides a signal transmission device, including:

[0329] A first selection unit 1001, configured to select a target wake-up cell from multiple wake-up cells according to wake-up cell priority information;

[0330] A first sending unit 1002, configured to send a wake-up signal to the target wake-up cell according to wake-up signal configuration information.

[0331] Optionally, the device according to the embodiment of the present application further includes:

[0332] A second obtaining unit, configured to 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;

[0333] Wherein, the RRC message is an RRC message obtained when the terminal is in a connected state.

[0334] Optionally, the wake-up cell priority information is related to at least one of the following:

[0335] Frequency level;

[0336] Cell level;

[0337] Measurement signal corresponding to the cell;

[0338] Position sorting information of the wake-up signal configuration;

[0339] Channel quality information of the cell.

[0340] Optionally, the first selection unit includes:

[0341] A selection subunit, configured to select M wake-up cells with the highest wake-up cell priority from multiple wake-up cells, where M is a positive integer;

[0342] An obtaining subunit, 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 a cell from the M wake-up cells as the target wake-up cell, or selecting a cell from the M wake-up cells as the target wake-up cell based on the implementation of the terminal, or selecting a wake-up cell with the best channel quality from the M wake-up cells as the target wake-up cell;

[0343] Wherein, the target wake-up cell meets the cell selection or reselection condition.

[0344] Optionally, the device according to the embodiment of the present application further includes:

[0345] A startup unit, configured to start a first timer after a first sending unit sends a wake-up signal to the target wake-up cell, where the first timer is used to determine whether the target wake-up cell fails to wake up.

[0346] Optionally, the device according to an embodiment of the present application further includes:

[0347] A determination unit, configured to determine that the target wake-up cell fails to wake up if a System Information Block SIB1 or a Synchronization Signal Block SSB sent by the target wake-up cell is not detected within the running time of the first timer.

[0348] Optionally, the device according to an embodiment of the present application further includes:

[0349] A second selection unit, 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 multiple wake-up cells to perform a wake-up process.

[0350] Optionally, the device according to an embodiment of the present application further includes:

[0351] A first processing unit, configured to stop the first timer if an SIB1 or an SSB sent by the target wake-up cell is detected within the running time of the first timer.

[0352] Optionally, the device according to an embodiment of the present application further includes:

[0353] A second processing unit, configured to, within a preset time period, not determine a cell that fails to wake up as a wake-up cell and / or not send a wake-up signal to a cell that fails to wake up.

[0354] It should be noted here that the above device provided by the embodiment of the present application can implement all the method steps implemented by the above-mentioned signal transmission method embodiment applied to a terminal, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiment will not be specifically described in this embodiment.

[0355] As Figure 11 shown, an embodiment of the present application further provides a signal transmission device, including:

[0356] A first acquisition unit 1101, configured to acquire wake-up cell priority information, where the wake-up cell priority information is used for a terminal to select a target wake-up cell from multiple wake-up cells;

[0357] A second sending unit 1102, configured to send the wake-up cell priority information to the terminal.

[0358] Optionally, the device according to an embodiment of the present application further includes:

[0359] A third sending unit, configured to send a first request message to a second network-side device before the first obtaining unit obtains the wake-up cell priority information, where the first request message is used to request to send the wake-up cell priority information, and the second network-side device is a neighbor base station of the first network-side device.

[0360] Optionally, the device according to an embodiment of the present application further includes:

[0361] A fourth sending unit, configured to send the wake-up cell priority information to a second network-side device when the wake-up cell priority information is configured for the first network-side device itself, where the second network-side device is a neighbor base station of the first network-side device.

[0362] Optionally, the wake-up cell priority information is related to at least one of the following:

[0363] Frequency level;

[0364] Cell level;

[0365] Measurement signal corresponding to the cell;

[0366] Position sorting information configured for the wake-up signal;

[0367] Channel quality information of the cell.

[0368] It should be noted here that the above device provided by the embodiment of the present application can implement all the method steps implemented by the above signal transmission method embodiment applied to the first network-side device, and can achieve the same technical effect. The same parts and beneficial effects as those in the method embodiment will not be specifically described in this embodiment.

[0369] As Figure 12 shown, an embodiment of the present application further provides a signal transmission device, including:

[0370] A transceiver unit 1201, configured to send the wake-up cell priority information to a first network-side device, or receive the 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 from multiple wake-up cells.

[0371] Optionally, the device according to an embodiment of the present application further includes: a third obtaining unit, configured 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, where the first request message is used to request to send the wake-up cell priority information.

[0372] Optionally, the apparatus according to an embodiment of the present application 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.

[0373] Optionally, the response message includes an acknowledgement message of the wake-up cell priority information or a suggestion message of the wake-up cell priority information.

[0374] Optionally, the wake-up cell priority information is related to at least one of the following:

[0375] Frequency level;

[0376] Cell level;

[0377] Measurement signal corresponding to the cell;

[0378] Position sorting information configured by the wake-up signal;

[0379] Channel quality information of the cell.

[0380] It should be noted here that the above-mentioned apparatus provided by the embodiment of the present application can implement all the method steps implemented by the above-mentioned signal transmission method embodiment applied to the second network-side device, and can achieve the same technical effect. The same parts and beneficial effects as those in the method embodiment will not be specifically described in this embodiment.

[0381] It should be noted that the division of units in the embodiment of the present application is illustrative, only a logical function division, and there may be other division methods in actual implementation. In addition, each functional unit in various embodiments of the present application may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of a software functional unit.

[0382] When 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 this application, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in various embodiments of this application. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical discs.

[0383] In some embodiments of this application, a processor-readable storage medium is also provided. The processor-readable storage medium stores program instructions, and the program instructions are used to cause the processor to execute all the steps implemented by the method embodiments executed by the aforementioned terminal or all the steps implemented by the method embodiments executed by the first network-side device or the second network-side device, and can achieve the same technical effects. Here, the same parts and beneficial effects as those in the method embodiments will not be specifically described again.

[0384] The terminal device involved in the embodiments of this application can be a device that provides voice and / or data connectivity to users, such as a handheld device with wireless connection capabilities, or other processing devices connected to a wireless modem, etc. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device can be called a User Equipment (UE). The wireless terminal device can communicate with one or more core networks (CN) via a Radio Access Network (RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device. For example, it can be a portable, pocket-sized, handheld, computer-integrated, or vehicle-mounted mobile device that exchanges voice and / or data with the wireless access network. For example, devices such as Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). The wireless terminal device can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile, remote station, access point, remote terminal, access terminal, user terminal, user agent, user device, which is not limited in the embodiments of this application.

[0385] The network device (or network-side device) involved in the embodiments of the present application may be a base station, which may include multiple cells that provide services to terminals. Depending on the specific application scenarios, the base station may also be referred to as an access point, or may be a device in the access network that communicates with wireless terminal devices through one or more sectors over the air interface, or other names. The network device can be used to mutually replace the received air frames and Internet Protocol (IP) packets, and act as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network device can also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), or may be a network device (NodeB) in a Wide-band Code Division Multiple Access (WCDMA), or may also be an evolved network device (evolutional Node B, eNB or e-NodeB) in a Long Term Evolution (LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), or may also be a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc. The embodiments of the present application do not limit this. In some network architectures, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.

[0386] A network device and a terminal device can each use one or more antennas for Multi-Input Multi-Output (MIMO) transmission. The MIMO transmission can be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). According to the form and quantity of the root antenna combination, the MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or it can also be diversity transmission, precoding transmission, beamforming transmission, etc.

[0387] Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories and optical memories, etc.) containing computer-usable program code.

[0388] The present application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0389] These processor-executable instructions can also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the processor-readable memory generate a manufactured article including an instruction device that implements the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0390] These processor-executable instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process. Thus, the instructions executed on the computer or other programmable device provide for implementing the functions specified in Figure 1One process or multiple processes and / or boxes Figure 1 Steps of the functions specified in one box or multiple boxes.

[0391] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these modifications and variations.

Claims

1. A signal transmission method, characterized in that, Executed by a terminal, the method includes: Select a target wake-up cell from 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.

2. The method according to claim 1, characterized in that, It further includes: Obtain the wake-up cell priority information according to at least one of pre-configured information, the system message of the current resident cell, the radio resource control (RRC) message of the current resident cell, the system message of the historical resident cell, and the RRC message of the historical resident cell; Wherein, the RRC message is the RRC message obtained when the terminal is in the connected state.

3. The method according to claim 1, characterized in that 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: Select 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, use the M wake-up cells as the target wake-up cell; or, when M is greater than 1, randomly select a cell from the M wake-up cells as the target wake-up cell, or, based on the terminal implementation, select a cell from the M wake-up cells as the target wake-up cell, or, select 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 conditions.

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

6. The method according to claim 5, wherein It further includes: 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.

7. The method according to claim 5 or 6, characterized in that, It further includes: In the case of determining that the target wake-up cell fails to wake up, select 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, characterized in that, It further includes: 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.

9. The method according to claim 5, wherein It further includes: 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.

10. A signal transmission method, characterized in that, Executed by a first network-side device, the method includes: Obtain the wake-up cell priority information, which is used for the terminal to select a target wake-up cell from multiple wake-up cells; Send 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, it further includes: Send a first request message to a second network-side device, where the first request message is used to request to send the 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, wherein It further includes: When the wake-up cell priority information is configured by 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, characterized in that, 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, characterized in that, Performed by the second network-side device, the method includes: Send wake-up cell priority information to the first network-side device, or receive the 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 from 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 includes: Obtain a first request message sent by the first network-side device, where the first request message is used to request to send the 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, it further includes: 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, characterized in that, Includes a memory, a transceiver, and a processor; The memory is used to store a computer program; the transceiver is used to 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 from 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 device according to claim 19, characterized in that, The processor also 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, characterized in that, 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 device according to claim 19, characterized in that, The processor also implements the following steps: Select 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, use the M wake-up cells as the target wake-up cell; or when M is greater than 1, randomly select a cell from the M wake-up cells as the target wake-up cell, or select a cell from the M wake-up cells based on the implementation of the terminal as the target wake-up cell, or select 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 conditions.

23. The device according to claim 19, characterized in that, The processor also implements the following steps: Start a first timer, where the first timer is used to determine whether the target wake-up cell fails to wake up.

24. The device according to claim 23, characterized in that, The processor also implements the following steps: If the System Information Block SIB1 or Synchronization Signal 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, characterized in that, The processor also implements the following steps: In the case of determining that the target wake-up cell fails to wake up, select a wake-up cell other than the target wake-up cell from multiple wake-up cells to perform the wake-up process.

26. The device according to claim 23, characterized in that, 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 device according to claim 23, characterized in that, The processor also implements the following steps: Within a preset time period, do not determine the cell with wake-up failure as a wake-up cell and / or do not send a wake-up signal to the cell with wake-up failure.

28. A signal transmission device, characterized in that, 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, where the wake-up cell priority information is used for the terminal to select a target wake-up cell from multiple wake-up cells; Send the wake-up cell priority information to the terminal.

29. The device according to claim 28, characterized in that, The processor also implements the following steps: Send a first request message to a second network-side device, where 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 device according to claim 28, characterized in that, 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, where the second network-side device is a neighbor base station of the first network-side device.

31. A signal transmission device, characterized in that, 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 the wake-up cell priority information to the first network-side device, or receive the 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 from multiple wake-up cells.

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

33. A signal transmission device, characterized in that, Including: A first selection unit, configured to select a target wake-up cell from multiple wake-up cells according to the wake-up cell priority information; A first sending unit, configured to send a wake-up signal to the target wake-up cell according to the wake-up signal configuration information.

34. A signal transmission device, characterized in that, Including: A first obtaining unit, configured to obtain 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; A second sending unit, configured to send the wake-up cell priority information to the terminal.

35. A signal transmission device, characterized in that, Including: A transceiver unit, configured to 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 from multiple wake-up cells.

36. A processor-readable storage medium, characterized in that, The processor-readable storage medium stores a computer program, which 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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