Common signal transmission method, storage medium and electronic device

Abstract

The embodiments of the present disclosure provide a common signal transmission method, a storage medium and an electronic device. The method comprises: on the basis of a first condition, determining whether a first cell is an energy-saving cell; and when the first cell is an energy-saving cell, a first node sending a WUS to a second node corresponding to the first cell, so as to trigger the second node to perform common signal transmission.

Description

Public signal transmission method, storage medium and electronic device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on Chinese patent application CN202410174869.1, filed on February 7, 2024, entitled “Public Signal Transmission Method, Storage Medium and Electronic Device”, and claims the priority of the patent application. All the contents disclosed therein are incorporated into this application by reference. Technical Field

[0003] The embodiments of the present disclosure relate to the field of communications, and in particular, to a public signal transmission method, a storage medium, and an electronic device. Background Art

[0004] With the growing growth of wireless services, the scale of networks is getting larger and larger, and the energy consumption of equipment is constantly increasing. The high energy consumption of base stations has gradually become one of the main reasons for the high operating expenses (OPEX). How to reduce the energy consumption of communication networks, achieve green, efficient and sustainable development, and meet the requirements of communication network development and network operation has become an urgent problem to be solved. For base stations, the transmission of some public signals, such as synchronization signal blocks (SSB) or system information blocks (SIB), is a major component of base station power consumption. Therefore, changing the periodically transmitted public signals to on-demand transmission is an important means of energy saving for base stations. However, in the related art, there is no effective solution for how to identify whether the first cell is an energy-saving cell and perform on-demand transmission of public signals based on the identification that the first cell is an energy-saving cell.

[0005] Summary of the Invention

[0006] According to one embodiment of the present disclosure, a public signal transmission method is provided, which is applied to a first node, including: judging whether the first cell is an energy-saving cell according to a first condition; when the first cell is an energy-saving cell, the first node sends an uplink wake-up signal WUS to a second node corresponding to the first cell to trigger the second node to perform public signal transmission.

[0007] According to one embodiment of the present disclosure, a public signal transmission method is provided, which is applied to a second node, including: sending and / or configuring a first condition, wherein the first condition is used to determine whether the first cell is an energy-saving cell; when the first cell is an energy-saving cell, receiving an uplink wake-up signal WUS from the first node, wherein the WUS is used to trigger the second node to perform public signal transmission.

[0008] According to another embodiment of the present disclosure, a computer-readable storage medium is provided, in which a computer program is stored. The computer program is configured to execute the steps of any one of the above method embodiments when running.

[0009] According to another embodiment of the present disclosure, an electronic device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to perform the steps in any one of the above method embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] FIG1 is a hardware structure block diagram of a mobile terminal of a common signal transmission method according to an embodiment of the present disclosure;

[0011] FIG2 is a flow chart of a common signal transmission method according to an embodiment of the present disclosure;

[0012] FIG3 is a flow chart of a common signal transmission method according to an embodiment of the present disclosure;

[0013] FIG4 is a flow chart of a common signal transmission method according to another embodiment of the present disclosure;

[0014] FIG5 is a flowchart of a common signal transmission method according to another embodiment of the present disclosure;

[0015] FIG6 is a flowchart of a common signal transmission method according to a first embodiment of the present disclosure;

[0016] FIG7 is a flowchart of a common signal transmission method according to a fourth embodiment of the present disclosure;

[0017] FIG8 is a flowchart of a public signal transmission method according to a fifth embodiment of the present disclosure. DETAILED DESCRIPTION

[0018] Hereinafter, the embodiments of the present disclosure will be described in detail with reference to the accompanying drawings and in combination with embodiments.

[0019] It should be noted that the terms "first", "second", etc. in the description and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0020] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking operation on a mobile terminal as an example, FIG1 is a hardware structure block diagram of a mobile terminal of the common signal transmission method of the embodiment of the present disclosure. As shown in FIG1 , the mobile terminal may include one or more (only one is shown in FIG1 ) processors 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 and an input and output device 108 for communication functions. It will be understood by those skilled in the art that the structure shown in FIG1 is only for illustration and does not limit the structure of the mobile terminal. For example, the mobile terminal may also include more or fewer components than those shown in FIG1 , or have a configuration different from that shown in FIG1 .

[0021] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the common signal transmission method in the embodiment of the present disclosure. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, implementing the above-mentioned method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include a memory remotely located relative to the processor 102, and these remote memories can be connected to the mobile terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0022] The transmission device 106 is used to receive or send data via a network. Examples of such networks may include wireless networks provided by the mobile terminal's communications provider. In one embodiment, the transmission device 106 includes a network interface controller (NIC), which can be connected to other network devices via a base station to enable communication with the Internet. In another embodiment, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0023] The embodiment of the present disclosure provides a common signal transmission method, which is applied to a first node. FIG2 is a flow chart of the common signal transmission method according to the embodiment of the present disclosure. As shown in FIG2 , the flow chart includes the following steps:

[0024] Step S202: Determine whether the first cell is an energy-saving cell according to a first condition.

[0025] In the embodiments of the present disclosure, the first node may be a terminal. A terminal may also be referred to as a user, user equipment (UE), access terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile device, UE terminal, wireless communication device, UE agent, or UE device, etc., but the embodiments of the present disclosure are not limited to this.

[0026] In the embodiment of the present disclosure, the UE may identify the energy-saving cell according to the first condition, or may identify the carrier according to the first condition.

[0027] In an exemplary embodiment, the common signal includes at least one of the following: a system information block SIB; a synchronization signal block SSB.

[0028] In an exemplary embodiment, the SIB is carried in a first physical downlink shared channel (PDSCH), wherein the first PDSCH is associated with a first demodulation reference signal (DMRS), the first PDSCH is scheduled by a first physical downlink control channel (PDCCH), the first PDCCH is associated with a second DMRS and / or SSB, and the first DMRS has a quasi-co-location relationship with the second DMRS and / or SSB.

[0029] In the embodiment of the present disclosure, the system information block SIB may be the first system information block SIB1. That is, in the embodiment of the present disclosure, the synchronization signal block SIB includes SIB1 and other synchronization signal blocks (SIBs other than SIB1, OSI).

[0030] In an exemplary embodiment, the first condition includes at least one of the following: the bit value of the reserved field in the master information block (MIB) of the first cell; the subcarrier offset value of the SSB in the MIB of the first cell; whether the first node detects the SIB or SIB scheduling information in the first cell within a first preset time period; whether the first cell is associated with the energy-saving cell identifier; whether the first cell is associated with the energy-saving cell list; whether the first cell is configured with configuration information of the uplink wake-up signal WUS.

[0031] In an embodiment of the present disclosure, the first condition is determined by MIB information, and the MIB information includes at least one of the following: a bit value of a reserved field in the MIB; a subcarrier offset value of an SSB in the MIB.

[0032] In an exemplary embodiment, the bit value of the reserved field in the MIB of the first cell is used to indicate at least one of the following: whether the first cell is an energy-saving cell; whether the first cell is in an on-demand transmission state; whether the first cell allows the first node to reside.

[0033] In the embodiment of the present disclosure, the length of the reserved field is 1 bit. The bit value of the reserved field is not limited and can be 0 or 1.

[0034] In an exemplary embodiment, the value of the subcarrier offset value of the SSB in the MIB of the first cell includes at least one of the following: when the subcarrier offset value in the first frequency range MIB is equal to 30, or the subcarrier offset value in the second frequency range MIB is equal to 14, the first cell is an energy-saving cell; when the subcarrier offset value in the first frequency range MIB is less than 24, or the subcarrier offset value in the second frequency range MIB is less than 12, the control resource set zero exists; when the subcarrier offset value in the first frequency range MIB is greater than 23 and less than 30, or the subcarrier offset value in the second frequency range MIB is equal to 12 or 13, the control resource set zero does not exist.

[0035] In an exemplary embodiment, the method for determining the first preset time period includes at least one of the following: a predefined time period; a time period configured by radio resource control (RRC) parameters; a time period determined by the communication capability or device type of the first node; or a time period determined by the first node.

[0036] In an exemplary embodiment, the first node determines whether the first cell is an energy-saving cell, including: when the subcarrier offset value of the SSB in the MIB of the first cell indicates the existence of control resource set zero, and the first node does not detect the SIB or SIB scheduling information within a first preset time, the first node determines that the first cell is an energy-saving cell.

[0037] In an exemplary embodiment, the energy-saving cell identifier or energy-saving cell list is configured by at least one of the following: Master Information Block (MIB) information; System Information Block (SIB) information; Radio Resource Control (RRC) signaling; core network; Non-Access Stratum (NAS) control information.

[0038] In step S204 , when the first cell is an energy-saving cell, the first node sends an uplink wake-up signal (WUS) to the second node corresponding to the first cell to trigger the second node to perform public signal transmission.

[0039] In an exemplary embodiment, the uplink wake-up signal WUS is also used to trigger the second node to update the synchronization signal block SSB or update the transmission mode of the synchronization signal block SSB.

[0040] After the first node sends an uplink wake-up signal WUS to the second node corresponding to the first cell, the public signal transmission method also includes at least one of the following: the first node detects the system information block SIB on the first cell in the second preset time period; the first node detects the synchronization signal block SSB on the first cell.

[0041] FIG3 is a flow chart of a common signal transmission method according to an embodiment of the present disclosure, which includes the following steps:

[0042] Step S302: Determine whether the first cell is an energy-saving cell according to a first condition.

[0043] Step S304: When the first cell is an energy-saving cell, the first node sends a WUS to the second node corresponding to the first cell, triggering the second node to perform public signal transmission.

[0044] Step S306: The first node detects a system information block SIB on the first cell in a second preset time period; or, the first node detects a synchronization signal block SSB on the first cell.

[0045] In an exemplary embodiment, when the first node fails to detect the SIB within the second preset time period, the first node resends the WUS to the second node.

[0046] In the embodiment of the present disclosure, the terminal continuously detects SIB1 within the second preset time period. In the embodiment of the present disclosure, the terminal does not continue to detect SIB1 after detecting SIB1 within the second preset time period.

[0047] In an exemplary embodiment, the start time of the second preset time period includes at least one of the following: the time when the first node sends the WUS to the second node; the time when the first node sends the WUS to the second node and the third preset time period has passed.

[0048] In an exemplary embodiment, the method for determining the third preset time period includes at least one of the following: a predefined time period; a time period configured by wireless resource control signaling; a time period corresponding to the moment when WUS sending is completed to the moment when the Nth SSB reception is completed; a time period corresponding to the length of N SSB transmission cycles, where N is a positive integer.

[0049] In an exemplary embodiment, the duration of the second preset time period is determined by at least one of the following methods: a predefined time; a time of M SIB cycles; a time of M SIB repetition cycles, where M is a positive integer.

[0050] In an exemplary embodiment, after the first node sends an uplink wake-up signal WUS to the second node corresponding to the first cell, the public signal transmission method further includes: the first node receives feedback information from the second node, wherein the feedback information is used to indicate that the WUS is sent successfully or the public signal transmission is triggered successfully.

[0051] FIG4 is a flow chart of a common signal transmission method according to another embodiment of the present disclosure, which includes the following steps:

[0052] Step S402: Determine whether the first cell is an energy-saving cell according to a first condition.

[0053] Step S404: When the first cell is an energy-saving cell, the first node sends a WUS to the second node corresponding to the first cell, triggering the second node to perform public signal transmission.

[0054] Step S406: The first node receives feedback information from the second node, where the feedback information is used to indicate that the WUS is sent successfully or the common signal transmission is triggered successfully.

[0055] In an exemplary embodiment, the feedback information is carried in a master information block (MIB) of the first cell.

[0056] In an exemplary embodiment, the feedback information is carried in a reserved field of the MIB; or, the feedback information is carried in a subcarrier offset value of the MIB.

[0057] The present disclosure also provides a common signal transmission method, which is applied to a second node. FIG5 is a flowchart of the common signal transmission method according to another embodiment of the present disclosure, including:

[0058] Step S502: Send and / or configure a first condition, where the first condition is used to determine whether the first cell is an energy-saving cell.

[0059] In the embodiments of the present disclosure, the second node may be a base station. The base station may be a base station or an evolved base station (eNB or eNodeB) in Long Term Evolution (LTE), Long Term Evolution Advanced (LTE-A), a base station device in a 5G network, or a base station in a future communication system. The base station may include various network-side devices such as various macro base stations, micro base stations, home base stations, wireless remote stations, reconfigurable intelligent surfaces (RIS), routers, and wireless fidelity (WIFI) devices.

[0060] Step S504: When the first cell is an energy-saving cell, an uplink wake-up signal WUS is received from the first node, where the WUS is used to trigger the second node to perform public signal transmission.

[0061] In an exemplary embodiment, the common signal includes at least one of the following: a system information block SIB; a synchronization signal block SSB.

[0062] In an exemplary embodiment, the WUS is also used to trigger the second node to update the synchronization signal block SSB or update the transmission mode of the synchronization signal block SSB.

[0063] In an exemplary embodiment, after step S504, the method further includes: the second node sending feedback information to the first node, wherein the feedback information is used to indicate that the WUS is sent successfully or the common signal transmission is triggered successfully.

[0064] The above steps provide a method for transmitting a public signal. The method determines whether a first cell is an energy-saving cell based on a first condition. If the first cell is an energy-saving cell, the first node sends a WUS signal to a second node corresponding to the first cell to trigger the second node to transmit a public signal. This method solves the problem in related technologies of being unable to identify whether a first cell is an energy-saving cell and perform on-demand public signal transmission based on the identification of the first cell as an energy-saving cell. The method effectively identifies energy-saving cells and performs on-demand public signal transmission.

[0065] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus the necessary general hardware platform, and of course it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the embodiment of the present disclosure is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, disk, CD-ROM), including a number of instructions for enabling a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the method described in the embodiment of the present disclosure.

[0066] In this embodiment, a common signal transmission device is also provided. The transmission device is used to implement the above-mentioned embodiments and preferred embodiments. The details already described will not be repeated here. As used below, the term "module" can refer to a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation using hardware, or a combination of software and hardware, is also possible and contemplated.

[0067] The public signal transmission device provided by the embodiment of the present disclosure can be set in a terminal or a base station, or applied to a terminal or a base station. The public signal transmission device may include: a judgment module, which is used to judge whether the first cell is an energy-saving cell according to a first condition. A transmission module is used to send an uplink wake-up signal WUS to the second node corresponding to the first cell when the first cell is an energy-saving cell, so as to trigger the second node to perform public signal transmission. In the embodiment of the present disclosure, the naming method and functional division of each module of the above-mentioned public signal transmission device can be determined according to actual conditions, and there is no specific limitation here, as long as the steps of the above-mentioned public signal transmission method can be implemented.

[0068] It should be noted that the above modules can be implemented through software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0069] An embodiment of the present disclosure further provides a computer-readable storage medium, in which a computer program is stored. The computer program is configured to execute the steps of any one of the above method embodiments when running.

[0070] In an exemplary embodiment, the computer-readable storage medium may include, but is not limited to, various media that can store computer programs, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk, or an optical disk.

[0071] An embodiment of the present disclosure further provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0072] In an exemplary embodiment, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0073] In this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail here.

[0074] Obviously, those skilled in the art should understand that the modules or steps of the above-mentioned embodiments of the present disclosure can be implemented using a general-purpose computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, they can be implemented using program codes executable by the computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be performed in a different order than herein, or they can be made into individual integrated circuit modules, or multiple modules or steps can be made into a single integrated circuit module for implementation. Thus, the embodiments of the present disclosure are not limited to any specific combination of hardware and software.

[0075] In order to enable those skilled in the art to better understand the technical solutions of the embodiments of the present disclosure, the following is an elaboration of the technical solutions in combination with embodiments in different scenarios.

[0076] Example 1

[0077] Embodiment 1 provides a common signal transmission method. In embodiment 1, a common signal transmission method is described using a terminal UE and a base station. FIG6 is a flowchart of the common signal transmission method of embodiment 1 of the present disclosure. As shown in FIG6, the method includes the following steps:

[0078] Step S602: The UE identifies an energy-saving cell according to a first condition.

[0079] In the embodiment of the present disclosure, the UE may identify the energy-saving cell according to the first condition, or may identify the carrier according to the first condition.

[0080] Step S604: The UE sends a WUS signal to the base station corresponding to the energy-saving cell, triggering the base station to perform public signal transmission.

[0081] In an embodiment of the present disclosure, the WUS signal sent by the UE to the base station is used for at least one of the following: triggering the transmission of the system information block SIB on the energy-saving cell; triggering the transmission of the synchronization signal block SSB on the energy-saving cell; indicating the update of the SSB on the energy-saving cell; indicating the update of the SSB transmission mode on the energy-saving cell.

[0082] In an embodiment of the present disclosure, the type of energy-saving cell is at least one of the following: a cell supporting on-demand system information block (On-Demand SIB) transmission; a cell in a cell off state (Cell Off); a cell supporting synchronization signal block transmission adaptation (SSB Adaptation).

[0083] In an embodiment of the present disclosure, the synchronization signal block includes SIB1 and / or OSI.

[0084] In an embodiment of the present disclosure, the first condition includes at least one of the following: MIB information; downlink control information of whether the UE detects SIB or scheduling SIB information within a first preset time period; energy-saving cell identifier; energy-saving cell list; uplink wake-up signal configuration.

[0085] The MIB information includes at least one of the following: a bit value of a reserved field in the MIB; a subcarrier offset value of an SSB in the MIB.

[0086] In the embodiment of the present disclosure, a one-bit reserved field in the MIB is used to indicate whether the current cell is an energy-saving cell. In the actual implementation process, the bit value of one bit in the MIB is "T" to indicate that the current cell is an energy-saving cell or the current cell is in the on-demand SIB1 transmission state or the current cell allows UE to reside. The bit value of one bit in the MIB is "R" to indicate that the current cell is a non-energy-saving cell, or does not support on-demand SIB1 output or is in the normal SIB1 transmission state or the current cell has SIB1 transmission. In the actual implementation process, the values ​​of "T" and "R" are not restricted, and can be T=1, R=0; or T=0, R=1.

[0087] In the embodiment of the present disclosure, for the subcarrier offset value of the SSB in the MIB, that is, k SSB , including for frequency range 1 (Frequency Range 1, FR1), the value range is 0-31, and for frequency range 2 (Frequency Range 2, FR2), the value range is 0-15.

[0088] In the related art, the UE detects the synchronization signal / physical broadcast channel block (SS / PBCH block) and determines whether the control resource set for the type 0 downlink control channel common search space set (CORESET for Type0-PDCCH CSS set) exists based on the master information block MIB in the synchronization signal block. If for FR1, k in MIB SSB <24, for FR2, k in MIB SSB <12, then it is considered that the control resource set zero exists. If for FR1, k SSB >23 or for FR2, k SSB >11, it is considered that the control resource set zero does not exist. For FR1, 24≤k SSB ≤29, or for FR2, 12≤k SSB When k≤13, the UE searches for the second SSB according to the mapping relationship. SSB =30, or for FR2, k SSB =14 is the reserved state.

[0089] In an embodiment of the present disclosure, for the subcarrier offset value of the SSB in the MIB, the UE determines whether the control resource set zero (CORESET 0) exists according to the SSB subcarrier offset value in the MIB.

[0090] For FR1, k SSB <24, for FR2, k SSB <12, CORESET 0 is considered to exist. If for FR1, k SSB >23 or for FR2, k SSB If >11, CORESET 0 is considered to be non-existent.

[0091] In the embodiment of the present disclosure, the UE determines whether the current cell is an energy-saving cell based on the SSB subcarrier offset value in the MIB. SSB =30, or for FR2, k SSB =14, the current cell is an energy-saving cell.

[0092] In the disclosed embodiment, the UE determines the current cell status based on a bit in the MIB and whether CORESET 0 exists. The current cell status includes whether it is an energy-saving cell, whether it supports on-demand SIB1 transmission, and whether there is SIB1 transmission.

[0093] In actual implementation, the UE detects the SS / PBCH block of the first cell, determines the bit value in the MIB indicating whether the first cell is an energy-saving cell, and determines whether CORESET 0 exists in the first cell. In one embodiment, when a bit in the MIB indicates that the first cell is an energy-saving cell and CORESET 0 exists in the first cell, the first cell is currently transmitting SIB1. The UE detects downlink control information DCI 1_0 scrambled by the temporary identifier SI-RNTI, which identifies scheduling system information, based on CORESET 0 and search space 0. In one embodiment, when a bit in the MIB indicates that the first cell is an energy-saving cell and CORESET 0 does not exist in the first cell, the first cell is currently not transmitting SIB1. In this case, an uplink wake-up signal WUS is required to trigger SIB1 transmission in the current cell. In one embodiment, when a bit in the MIB indicates that the first cell is a non-energy-saving cell, the UE determines whether to detect / receive SIB1 based on whether CORESET 0 exists.

[0094] In the first embodiment, the case where the first condition is MIB information is described.

[0095] Example 2

[0096] In the second embodiment, description is given for the case where the first condition is whether the UE detects the SIB or the downlink control information scheduling SIB information within the first preset time period.

[0097] In an embodiment of the present disclosure, the UE detects whether there is a SIB or SIB scheduling information in the current cell within a first preset time period. The first preset time period depends on at least one of the following: predefined, higher layer parameters, terminal capabilities, terminal type, or UE decision.

[0098] In the embodiment of the present disclosure, for the case where the first preset time period is predefined, in one embodiment, a minimum time is predefined, and the terminal must at least detect SIB1.

[0099] In one embodiment, the predefined time is N SIB1 repetition periods, where N ≥ 1. For example, N is a predefined value or is configured by a higher-layer parameter or is available from a configuration table. For example, if N = 4 and the SIB1 repetition period is 20 ms, then the predefined time is 80 ms. N is a positive integer.

[0100] In one embodiment, the predefined time is N SIB1 periods, where N≥1. For example, N is a predefined value or is configured by a higher layer parameter or is available from a configuration table. For example, if N=2 and the SIB1 period is 160ms, the predefined time is 320ms.

[0101] In one embodiment, the predefined time is N SSB transmission periods, where N ≥ 1. For example, N is a predefined value or is configured by a higher-layer parameter or is available from a configuration table. For example, if N = 8 and the SSB period is 20 ms, the predefined time is 160 ms.

[0102] In one embodiment, the predefined time is T milliseconds, where T≥0. For example, the predefined time is 100 ms.

[0103] In an embodiment of the present disclosure, when the first preset time period is determined by a high-level parameter, the first preset time period is configured by the high-level parameter. In one embodiment, the high-level parameter directly configures the duration of the first preset time period. For example, the high-level parameter configures the value of one or more candidate first preset time periods.

[0104] In the embodiment of the present disclosure, in the case where the first preset time period is determined by the terminal capability or terminal type, the first preset time period is determined by the terminal capability or terminal type. For example, the first preset time period for a terminal of the first type or a terminal with the first terminal capability is T1, and the first preset time period for a terminal of the first type or a terminal with the first terminal capability is T2. T1 and / or T2 are determined by a higher-layer configuration, predefined, or determined by the UE.

[0105] In the embodiment of the present disclosure, in the case where the first preset time period is determined by the UE, the first preset time period is directly determined by the UE.

[0106] In the second embodiment, if the UE does not detect the SIB or downlink control information scheduling SIB information on the first cell within the first preset time period, the first cell is considered to be an energy-saving cell.

[0107] In an embodiment of the present disclosure, if a UE detects a synchronization signal / broadcast channel block of a first cell and determines, based on the MIB, that CORESET 0 exists in the first cell, and if the UE does not detect downlink control information of an SIB or scheduling SIB information, i.e., SI-RNTI-scrambled DCI 1_0, within a first preset time period, then the first cell is an energy-saving cell. Otherwise, the first cell is a non-energy-saving cell.

[0108] Example 3

[0109] In the third embodiment, the first condition is described as follows: whether the current cell carries an energy-saving cell identifier, whether the current cell is associated with an energy-saving cell list, and whether the current cell is configured with an uplink wake-up signal WUS.

[0110] In the embodiment of the present disclosure, the energy-saving cell identifier or the energy-saving cell list is configured by at least one of the following: MIB; SIB1; radio resource control RRC; core network; non-access stratum NAS.

[0111] In the embodiment of the present disclosure, the energy-saving cell identifier is associated with a physical cell identity (PCI) or a cell identity (Cell Identity) or a cell index (Cell Index) or a serving cell ID (Severing Cell ID).

[0112] In one embodiment, if the first cell is associated with an energy-saving cell identifier, the first cell is an energy-saving cell. If the energy-saving cell is not associated with an energy-saving cell identifier, the energy-saving cell is a non-energy-saving cell.

[0113] In one embodiment, the first cell is associated with an energy-saving cell list, and the first cell is an energy-saving cell. For example, the energy-saving cell list includes multiple cells, and the first cell belongs to one of the multiple cells included in the energy-saving cell list, and the first cell is an energy-saving cell.

[0114] In one embodiment, the energy-saving cell identifier is associated with a cell list. For example, the cell list includes one or more cells, each of which corresponds to an energy-saving cell identifier. When the energy-saving cell identifier indicates energy saving, the cell corresponding to the energy-saving cell identifier is an energy-saving cell. When the energy-saving cell identifier indicates non-energy saving, the cell corresponding to the energy-saving cell identifier is a non-energy-saving cell.

[0115] In another embodiment, an energy-saving cell identifier is associated with an energy-saving cell list, which includes one or more cells. Each cell corresponds to a physical cell identifier or cell identifier. For example, a cell in the energy-saving cell list associated with an energy-saving cell identifier is an energy-saving cell. For example, a cell corresponding to a physical cell identifier or cell identifier associated with the energy-saving cell list is an energy-saving cell. A cell associated with an energy-saving cell identifier is an energy-saving cell, while a cell not associated with an energy-saving cell identifier is a non-energy-saving cell.

[0116] In actual implementation, a terminal accesses a first cell and obtains a list of energy-saving cells in the first cell, where each cell is associated with a physical cell identifier. When the terminal enters a second cell, it detects the SSB of the second cell and obtains the physical cell identifier of the second cell. Based on the physical cell identifier, the terminal determines that the second cell is in the energy-saving cell list and is therefore an energy-saving cell.

[0117] In the embodiment of the present disclosure, for the case where the first condition is whether the current cell is configured with an uplink wake-up signal WUS, the cell associated with the uplink wake-up signal configuration is an energy-saving cell, and the cell not associated with the uplink wake-up signal configuration is a non-energy-saving cell.

[0118] Example 4

[0119] Embodiment 4 provides a method for transmitting a common signal. In this embodiment, a common signal transmission method is described using a terminal UE and a base station, and the steps after the UE sends a WUS signal to the base station corresponding to the energy-saving cell are described. Figure 7 is a flow chart of the common signal transmission method of embodiment 4 of the present disclosure, as shown in Figure 7, including the following steps:

[0120] Step S702: The UE identifies an energy-saving cell according to a first condition.

[0121] In the embodiment of the present disclosure, the UE may identify the energy-saving cell according to the first condition, or may identify the carrier according to the first condition.

[0122] Step S704: The UE sends a WUS signal to the base station corresponding to the energy-saving cell, triggering the base station to perform public signal transmission.

[0123] In the embodiment of the present disclosure, the terminal UE identifies the energy-saving cell and transmits an uplink wake-up signal on the energy-saving cell, wherein the uplink wake-up signal includes a SIB1 transmission request on the energy-saving cell. The uplink wake-up signal is used to trigger SIB1 transmission of the energy-saving cell.

[0124] Step S706: The UE detects SIB1 in the energy-saving cell.

[0125] In the embodiment of the present disclosure, the terminal detects SIB1 in a second preset time period (a second duration). For example, the second preset time period is determined by at least one of the following: a start position of the second preset time period, a duration of the second preset time period, and an end position of the second preset time period.

[0126] In the embodiment of the present disclosure, the terminal continuously detects SIB1 within the second preset time period. In the embodiment of the present disclosure, the terminal does not continue to detect SIB1 after detecting SIB1 within the second preset time period.

[0127] In one embodiment, the starting position of the second preset time period is associated with at least one of the following: a WUS transmission position, a third preset time period.

[0128] The terminal UE starts detecting SIB1 immediately after transmitting the WUS. Alternatively, the terminal starts detecting SIB1 after a third preset time period has passed since the WUS was transmitted. For example, the third preset time period is associated with at least one of the following: a predefined time, a higher layer parameter, an SSB reception timing, or an SSB transmission period.

[0129] In actual implementation, the third preset time period is a predefined time, for example, T milliseconds, or T time slots, or T symbols, where T≥0.

[0130] Alternatively, the third preset time period is configured by a high-level parameter.

[0131] Alternatively, the third preset time period is related to the SSB reception opportunity. For example, the third preset time period is the distance from the WUS transmission to the Mth SSB reception opportunity. For example, the terminal starts detecting SIB1 after the Mth SSB reception opportunity after the WUS, M≥1. For example, M=1, the UE transmits an uplink wake-up signal, and detects the SSB after transmitting the uplink wake-up signal, and starts detecting SIB1 according to the indication of the MIB information. For example, M=2, the UE transmits an uplink wake-up signal, and detects the SSB after transmitting the uplink wake-up signal, and starts detecting SIB1 according to the indication of the MIB information after the second SSB reception opportunity.

[0132] Alternatively, the third preset time period is related to an SSB transmission period. For example, the third preset time period is M SSB transmission periods, M≥1. For example, M=1. The terminal transmits an uplink wake-up signal and begins detecting SIB1 after M SSB transmission periods. For example, within the M SSB transmission periods, the terminal detects the SSB at least once. For example, within the M SSB transmission periods, the terminal detects at least the last SSB.

[0133] In one embodiment, the terminal starts detecting DCI 1_0 scrambled by SI-RNTI at the time-frequency domain resource location determined by CORESET 0 and search space 0, and detects SIB1 according to the instruction of DCI 1_0.

[0134] In the fourth embodiment, the duration of the second preset time period is related to at least one of the following: a SIB1 cycle, a SIB1 repetition cycle, or a predefined time.

[0135] The duration of the second preset time period is M SIB1 cycles, where M≥1. M is a predefined value or a higher-layer parameter configuration or a UE decision. For example, the SIB1 cycle is a predefined value or a higher-layer parameter configuration. For example, the SIB1 cycle is 160 ms.

[0136] The duration of the second preset time period is M SIB1 repetition periods, where M ≥ 1. M is a predefined value, configured by a higher-layer parameter, or determined by the UE. For example, the SIB1 repetition period is a predefined value, such as 20 ms. For example, the SIB1 repetition period is the same as the SSB period. For example, the SIB1 repetition period is configured by a higher-layer parameter. For example, the optional values ​​of the SIB1 repetition period are {5 ms, 10 ms, 20 ms, 40 ms, 80 ms, 160 ms}.

[0137] In the embodiment of the present disclosure, if the terminal does not detect SIB1 within the second preset time period, it retransmits WUS.

[0138] Example 5

[0139] Embodiment 5 provides a method for transmitting a common signal. In this embodiment, a common signal transmission method is described using a terminal UE and a base station, and the steps of receiving feedback information after the UE sends a WUS signal to the base station corresponding to the energy-saving cell are introduced. Figure 8 is a flow chart of the common signal transmission method of Embodiment 5 of the present disclosure, as shown in Figure 8, including the following steps:

[0140] Step S802: The UE identifies an energy-saving cell according to a first condition.

[0141] In the embodiment of the present disclosure, the UE may identify the energy-saving cell according to the first condition, or may identify the carrier according to the first condition.

[0142] Step S804: The UE sends a WUS signal to the base station corresponding to the energy-saving cell, triggering the base station to perform public signal transmission.

[0143] In the embodiment of the present disclosure, the terminal UE identifies the energy-saving cell and transmits an uplink wake-up signal on the energy-saving cell, wherein the uplink wake-up signal includes a SIB1 transmission request on the energy-saving cell. The uplink wake-up signal is used to trigger SIB1 transmission of the energy-saving cell.

[0144] Step S806: The UE detects feedback information from the base station.

[0145] In the embodiment of the present disclosure, the feedback information is carried by the MIB, and includes whether the uplink wake-up signal is successfully transmitted or whether the SIB1 is successfully triggered.

[0146] In one embodiment, the feedback information is carried by reserved bits in the MIB. For example, the reserved bits in the MIB are used to indicate whether the uplink wake-up signal is successfully transmitted or whether the SIB1 is successfully triggered. For example, the uplink wake-up signal is successfully transmitted or the SIB1 is successfully triggered, which means that in response to the transmission of the uplink wake-up signal, the energy-saving cell will transmit the on-demand transmission SIB1.

[0147] In actual implementation, a reserved bit of "A" in the MIB indicates that the current cell supports on-demand SIB1 transmission, but there is currently no SIB1 transmission. A reserved bit of "B" in the MIB indicates that SIB1 transmission will occur. For example, A = 1, B = 0; or A = 0, B = 1. For example, if the bit is 1 before the uplink wake-up signal is transmitted and 0 after the uplink signal is transmitted, it indicates that the uplink wake-up signal transmission is successful or SIB1 is triggered successfully.

[0148] In one embodiment, the feedback information is carried by the subcarrier offset value in the MIB. For example, if the SSB subcarrier offset value in the MIB indicates the presence of CORESET 0, it indicates that the uplink wake-up signal transmission is successful or the SIB1 trigger is successful. If the SSB subcarrier offset value in the MIB indicates the absence of CORESET 0, it indicates that the uplink wake-up signal transmission is unsuccessful or the SIB1 trigger is unsuccessful.

[0149] In one embodiment, if CORESET 0 does not exist before the uplink wake-up signal is transmitted, but exists after the uplink signal is transmitted, it means that the uplink wake-up signal is transmitted successfully or SIB1 is triggered successfully.

[0150] In the fifth embodiment, the case where the terminal detects SSB after transmitting the uplink wake-up signal is also introduced.

[0151] In the disclosed embodiment, after transmitting an uplink wake-up signal, the terminal detects the SSB and determines whether the uplink wake-up signal is successfully transmitted or whether SIB1 is successfully triggered based on the MIB information in the SSB. For example, the MIB information is updated starting from the first SSB transmission opportunity after the WUS. For example, the MIB information is updated starting from the next SSB cycle.

[0152] In the disclosed embodiments, for SSBs and SIB1 in the common signal, the DMRS associated with the PDSCH carrying SIB1 information and the DMRS and / or SSB associated with the PDCCH that schedules the PDSCH carrying SIB1 information have a quasi-co-location relationship. In one embodiment, the DMRS associated with SIB1 / PDSCH carrying SIB1 information triggered in response to a WUS and the DMRS and / or SSB associated with the PDCCH that schedules SIB1 / PDSCH carrying SIB1 information have quasi-co-location Type A and Type D characteristics.

[0153] Example 6

[0154] Embodiment 6 provides a method for determining an SSB transmission mode on an energy-saving cell.

[0155] An energy-saving cell may include at least two SSB transmission modes. The SSB transmission mode includes at least one of the following: whether to transmit SSB, an SSB transmission period, and an SSB transmission beam or index. For example, one SSB transmission mode includes SSB transmission with a period of 20 ms. Another example includes SSB transmission with a period of 160 ms. Another example includes no SSB transmission.

[0156] In one embodiment, the determination of the SSB transmission mode of the energy-saving cell is related to at least one of the following: SSB transmission mode triggering signaling, a timer, a predefined time period, a paging occasion, and a random access occasion.

[0157] In one embodiment, in response to the SSB transmission mode trigger signaling, the SSB transmission mode of the energy-saving cell is updated.

[0158] In one embodiment, in response to the timer expiring, the SSB transmission mode of the energy-saving cell is updated.

[0159] In one embodiment, the energy-saving cell adopts the first SSB transmission mode in a predefined time period before the paging occasion, and adopts the second SSB transmission mode in a non-predefined time period.

[0160] In one embodiment, the energy-saving cell adopts the first SSB transmission mode in a predefined time period before the random access opportunity, and adopts the second SSB transmission mode in a non-predefined time period.

[0161] In one embodiment, the duration of the predefined time period is determined by at least one of the following: predefinition, higher-layer signaling or higher-layer parameter configuration, SIB1 configuration, the SSB transmission mode used in the predefined time period, the SSB transmission period used in the predefined time period, and a default SSB transmission period. For example, the duration of the predefined time period is N SSB transmission periods used in the predefined time period, where N is a predefined parameter. When the SSB transmission period used in the predefined time period is 5 ms and N=4, the duration of the predefined time period is 20 ms.

[0162] Example 7

[0163] In the seventh embodiment, the response process after sending the WUS signal involved in the embodiments of the present disclosure is introduced in detail.

[0164] The WUS signal in the embodiment of the present disclosure is used for at least one of the following: triggering the transmission of the system information block SIB on the energy-saving cell; triggering the transmission of the synchronization signal block SSB on the energy-saving cell; indicating the SSB update on the energy-saving cell; indicating the SSB transmission mode update on the energy-saving cell.

[0165] In an embodiment of the present disclosure, in response to the uplink wake-up signal WUS, during a third preset time period, the SSB period remains unchanged, and the repetition period is R. For example, R is the minimum period supported by the SSB configuration. For example, R is 5 milliseconds. For example, the third preset time period includes at least one of the following: the first preset time period, or the second preset time period.

[0166] In an embodiment of the present disclosure, in response to the uplink wake-up signal WUS, during a third preset time period, the SSB period is R. For example, R is the minimum period supported by the SSB configuration. For example, R is 5 milliseconds. For example, the third preset time period includes at least one of the following: the first preset time period, the second preset time period.

[0167] In actual implementation, for SSB and CORESET multiplexing mode 1, the SIB1 repetition period is 20ms. For SSB and CORESET multiplexing patterns 2 / 3, the SIB1 repetition period is the same as the SSB period. When an uplink wake-up signal is used to trigger SIB1 transmission, using a small-cycle SSB transmission allows the UE to quickly obtain SIB1 or uplink wake-up signal feedback information, reducing the terminal's initial access latency. At the same time, concentrated transmission can achieve energy conservation in the base station. Furthermore, a smaller SSB period does not affect the performance of newly connected terminals. The length of the small cycle can be determined based on actual conditions.

[0168] In an embodiment of the present disclosure, the uplink wake-up signal is used to indicate an update of the SSB transmission mode on the energy-saving cell. In response to the uplink wake-up signal, the base station adopts the specified SSB transmission mode.

[0169] In one embodiment, the designated SSB transmission mode is a default SSB transmission mode or a predefined SSB transmission mode.

[0170] In actual implementation, the uplink wake-up signal may carry an SSB transmission mode index. For example, the designated SSB transmission mode is the SSB transmission mode corresponding to the SSB transmission mode index carried by the uplink wake-up signal.

[0171] In an embodiment of the present disclosure, the SSB transmission mode includes at least one of the following: whether to transmit SSB, SSB transmission period, SSB transmission period scaling factor, SSB repetition period, SSB index indication of actual transmission, SSB transmission power, and SSB power offset.

[0172] In an embodiment of the present disclosure, the validity period of the updated SSB transmission mode on the energy-saving cell includes at least one of the following: lasting N times; the duration is D, where D is predefined or configurable; valid until the timer times out; valid until a new indication is received.

[0173] In the disclosed embodiment, the SSB transmission mode update indication on the energy-saving cell is the SSB transmission mode preferred by the terminal. For example, the uplink wake-up signal carries auxiliary information for the SSB transmission mode update to help the base station determine whether to perform the SSB transmission mode update. The terminal's preference can be determined based on actual conditions, terminal capabilities, terminal type, or service requirements.

[0174] The above description is merely a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Those skilled in the art will appreciate that various modifications and variations of the present disclosure are possible. Any modifications, equivalent substitutions, or improvements made within the principles of the present disclosure should be included within the scope of protection of the present disclosure.

Claims

1. A public signal transmission method, applied to a first node, comprising: Determining whether the first cell is an energy-saving cell according to the first condition; In the case that the first cell is an energy-saving cell, the first node sends an uplink wake-up signal WUS to a second node corresponding to the first cell to trigger the second node to perform public signal transmission.

2. The method according to claim 1, wherein The common signal includes at least one of the following: System Information Block SIB; Synchronization signal block SSB.

3. The method according to claim 1, wherein The first condition includes at least one of the following: a bit value of a reserved field in a master information block (MIB) of the first cell; a subcarrier offset value of the SSB in the MIB of the first cell; whether the first node detects the SIB or SIB scheduling information in the first cell within a first preset time period; whether the first cell is associated with an energy-saving cell identifier; whether the first cell is associated with a list of energy-saving cells; Configuration information of whether the first cell is configured with an uplink wake-up signal WUS.

4. The method according to claim 3, wherein: The bit value of the reserved field in the MIB of the first cell is used to indicate at least one of the following: whether the first cell is an energy-saving cell; whether the first cell is in an on-demand transmission state; Whether the first cell allows the first node to reside.

5. The method according to claim 3, wherein: The subcarrier offset value of the SSB in the MIB of the first cell includes at least one of the following: When the subcarrier offset value in the first frequency range MIB is equal to 30, or the subcarrier offset value in the second frequency range MIB is equal to 14, the first cell is an energy-saving cell; Control resource set zero exists when the subcarrier offset value in the first frequency range MIB is less than 24, or the subcarrier offset value in the second frequency range MIB is less than 12; When the subcarrier offset value in the first frequency range MIB is greater than 23 and less than 30, or the subcarrier offset value in the second frequency range MIB is equal to 12 or 13, the control resource set zero does not exist.

6. The method according to claim 1, wherein Also includes: The uplink wake-up signal WUS is also used to trigger the second node to update the synchronization signal block SSB or update the transmission mode of the synchronization signal block SSB.

7. The method according to claim 3, wherein: The first preset time period is determined in at least one of the following ways: predefined time periods; The time period for radio resource control (RRC) parameter configuration; a time period determined by the communication capability or device type of the first node; The time period determined by the first node.

8. The method according to claim 3, wherein: The first node determining whether the first cell is an energy-saving cell includes: When the subcarrier offset value of the SSB in the MIB of the first cell indicates the existence of control resource set zero and the first node does not detect the SIB or SIB scheduling information within a first preset time, the first node determines that the first cell is an energy-saving cell.

9. The method according to claim 3, wherein: The energy-saving cell identifier or energy-saving cell list is configured by at least one of the following: Master Information Block (MIB) information; System Information Block SIB information; Radio Resource Control (RRC) signaling; core network; Non-access stratum NAS control information.

10. The method according to claim 1, wherein After the first node sends an uplink wake-up signal WUS to the second node corresponding to the first cell, the method further includes at least one of the following: The first node detects a system information block SIB on the first cell in a second preset time period; The first node detects a synchronization signal block SSB on the first cell.

11. The method according to claim 10, wherein: In a case where the first node fails to detect the SIB within a second preset time period, the first node resends the WUS to the second node.

12. The method according to any one of claims 10 or 11, wherein: The starting time of the second preset time period includes at least one of the following: The first node sends the time when the WUS is completed to the second node; The first node sends the WUS to the second node at a time after a third preset time period has passed and the WUS is completed.

13. The method according to claim 12, wherein: The third preset time period is determined in at least one of the following ways: predefined time periods; The time period configured by radio resource control signaling; The time period from the moment when the WUS is sent to the moment when the Nth SSB is received; The time period corresponding to N SSB transmission cycle durations, where N is a positive integer.

14. The method according to any one of claims 10 or 11, wherein: The duration of the second preset time period is determined in at least one of the following ways: Predefined time; The duration of M SIB cycles; The duration of M SIB repetition periods, where M is a positive integer.

15. The method according to claim 1, wherein After the first node sends an uplink wake-up signal WUS to the second node corresponding to the first cell, the method further includes: The first node receives feedback information from the second node, wherein the feedback information is used to indicate that the WUS is sent successfully or the common signal transmission is triggered successfully.

16. The method according to claim 15, wherein The feedback information is carried in the master information block MIB of the first cell.

17. The method according to claim 16, wherein The feedback information is carried in a reserved field of the MIB; Alternatively, the feedback information is carried in the subcarrier offset value of the MIB.

18. The method according to claim 2, wherein: The SIB is carried in a first physical downlink shared channel PDSCH, wherein the first PDSCH is associated with a first demodulation reference signal DMRS, the first PDSCH is scheduled by a first physical downlink control channel PDCCH, the first PDCCH is associated with a second DMRS and / or SSB, and the first DMRS and the second DMRS and / or SSB have a quasi-co-location relationship.

19. A public signal transmission method, applied to a second node, the method comprising: Sending and / or configuring a first condition, where the first condition is used to determine whether the first cell is an energy-saving cell; In the case that the first cell is an energy-saving cell, an uplink wake-up signal WUS is received from the first node, and the WUS is used to trigger the second node to perform public signal transmission.

20. The method according to claim 19, wherein The common signal includes at least one of the following: System Information Block SIB; Synchronization signal block SSB.

21. The method according to claim 19, wherein The WUS is also used to trigger the second node to update the synchronization signal block SSB or update the transmission mode of the synchronization signal block SSB.

22. The method according to claim 19, wherein After receiving the uplink wake-up signal WUS from the first node, the method further includes: The second node sends feedback information to the first node, wherein the feedback information is used to indicate that the WUS is sent successfully or the common signal transmission is triggered successfully.

23. A computer-readable storage medium having a computer program stored therein, wherein: When the computer program is executed by a processor, the method according to any one of claims 1 to 22 is implemented.

24. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method according to any one of claims 1 to 22 when executing the computer program.

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