Information transmission method and apparatus, and device and storage medium

Abstract

An information transmission method and apparatus, and a device and a storage medium, which relate to the technical field of communications. The method is executed by a terminal device. The method comprises: sending a wake-up signal, wherein the wake-up signal is used for requesting that a network device sends at least one first beam or a first system message corresponding to a first signal. By means of the method, a terminal device can request, by means of a wake-up signal, that a network device sends a first beam and / or a first system message corresponding to a first signal. The network device can send only the first beam and / or the first system message corresponding to the first signal, and does not need to send each beam and / or a system message corresponding to a signal, thereby implementing on-demand sending for the terminal device, and implementing energy saving of the network device.

Description

Information transmission method and device, apparatus, and storage medium TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of communication, and in particular to an information transmission method, device, apparatus, and storage medium. BACKGROUND

[0002] With the development of communication technology, network devices have a wider coverage range, support more connected terminal devices, and have increased power consumption. Therefore, network energy saving technology needs to be considered in the design process. How to further achieve network device energy saving needs further discussion and research.

[0003] SUMMARY

[0004] Embodiments of the present application provide an information transmission method, device, apparatus, and storage medium. The technical solutions provided by the embodiments of the present application are as follows:

[0005] According to an aspect of the embodiments of the present application, an information transmission method is provided, which is executed by a terminal device, and the method comprises:

[0006] sending a wake-up signal, the wake-up signal being used to request a network device to send a first system message corresponding to at least one first beam or first signal.

[0007] According to an aspect of the embodiments of the present application, an information transmission method is provided, which is executed by a network device, and the method comprises:

[0008] receiving a wake-up signal, the wake-up signal being used to request the network device to send a first system message corresponding to at least one first beam or first signal.

[0009] According to an aspect of the embodiments of the present application, an information transmission device is provided, which comprises:

[0010] a sending module configured to send a wake-up signal, the wake-up signal being used to request a network device to send a first system message corresponding to at least one first beam or first signal.

[0011] According to an aspect of the embodiments of the present application, an information transmission device is provided, which comprises:

[0012] a receiving module configured to receive a wake-up signal, the wake-up signal being used to request the network device to send a first system message corresponding to at least one first beam or first signal.

[0013] According to an aspect of some embodiments of the present application, a communication device is provided, which comprises a processor and a memory, the memory storing a computer program, and the processor executes the computer program to implement the information transmission method.

[0014] According to an aspect of some embodiments of the present application, a computer readable storage medium is provided, which stores a computer program, and the computer program is configured to be executed by a processor to implement the information transmission method.

[0015] According to an aspect of some embodiments of the present application, a chip is provided, which comprises a programmable logic circuit and / or program instructions, and when the chip is running, the programmable logic circuit and / or program instructions are configured to implement the information transmission method.

[0016] According to an aspect of some embodiments of the present application, a computer program is provided, which comprises computer instructions stored in a computer readable storage medium, and a processor reads and executes the computer instructions from the computer readable storage medium to implement the information transmission method.

[0017] According to an aspect of some embodiments of the present application, a computer program product is provided, which comprises computer instructions stored in a computer readable storage medium, and a processor reads and executes the computer instructions from the computer readable storage medium to implement the information transmission method.

[0018] The technical solutions provided by the embodiments of the present application can have the following beneficial effects:

[0019] The terminal device can request the network device to send the first system message corresponding to the first beam and / or the first signal through the wake-up signal. The network device can only send the first system message corresponding to the first beam and / or the first signal, without sending the system message corresponding to each beam and / or signal, thereby realizing on-demand sending for the terminal device and realizing energy saving of the network device. BRIEF DESCRIPTION OF DRAWINGS

[0020] FIG. 1 is a schematic diagram of a network architecture provided by an embodiment of the present application;

[0021] FIG. 2 is a schematic diagram of an SSB provided by an embodiment of the present application;

[0022] FIG. 3 is a flowchart of an information transmission method provided by an embodiment of the present application;

[0023] FIG. 4 is a schematic diagram of beam distribution of a first cell provided by an embodiment of the present application;

[0024] FIG. 5 is a schematic diagram of beam distribution of a first cell provided by another embodiment of the present application;

[0025] FIG. 6 is a schematic diagram of an association relationship between an SSB and a wake-up signal resource according to an embodiment of the present application;

[0026] FIG. 7 is a block diagram of an information transmission apparatus according to an embodiment of the present application;

[0027] FIG. 8 is a block diagram of an information transmission apparatus according to another embodiment of the present application;

[0028] FIG. 9 is a structural schematic diagram of a communication device according to an embodiment of the present application. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0030] The network architecture and service scenarios described in the embodiments of the present application are for more clearly illustrating the technical scheme of the embodiments of the present application, and do not constitute a limitation on the technical scheme provided by the embodiments of the present application. It can be known by those skilled in the art that, with the evolution of network architecture and the appearance of new service scenarios, the technical scheme provided by the embodiments of the present application is also applicable to similar technical problems.

[0031] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system, New Radio (NR) system, evolved system of NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), 5th-Generation (5G) system, B5G (Beyound 5G) system, 6th-Generation (6G) system or other communication systems, etc.

[0032] Generally, the traditional communication system supports a limited number of connections, which is easy to implement. However, with the development of communication technology, the mobile communication system will not only support the traditional communication, but also support, for example, Device to Device (D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0033] The communication system in the embodiments of the present application can be applied to a carrier aggregation (CA) scenario, can also be applied to a dual connectivity (DC) scenario, and can also be applied to a standalone (SA) network deployment scenario.

[0034] The communication system in the embodiments of the present application can be applied to unlicensed spectrum, which can also be regarded as shared spectrum, or can also be applied to licensed spectrum, which can also be regarded as non-shared spectrum.

[0035] The embodiments of the present application can be applied to a non-terrestrial network (NTN) system, and can also be applied to a terrestrial network (TN) system. The NTN generally adopts a satellite communication mode to provide communication services to ground users. The NTN system currently includes an NR-NTN and an IoT-NTN system, and subsequent NTN systems are also possible.

[0036] Please refer to FIG. 1, which shows a schematic diagram of a network architecture 100 provided by an embodiment of the present application. The network architecture 100 can include a terminal device 10, an access network device 20, and a core network element 30.

[0037] The terminal device 10 can refer to a UE (User Equipment), an access terminal device, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal device, a mobile device, a wireless communication device, a user agent, or a user apparatus. In some embodiments, the terminal device 10 can also be a cellular phone, a cordless phone, a SIP (Session Initiation Protocol) phone, a WLL (Wireless Local Loop) station, a PDA (Personal Digital Assistant), a handheld device with wireless communication function, a computing device, or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5GS (5th Generation System), or a terminal device in a future evolved PLMN (Public Land Mobile Network), etc., and the embodiments of the present application are not limited thereto. For the convenience of description, the above-mentioned devices are collectively referred to as terminal devices. The number of terminal devices 10 is usually multiple, and one or more terminal devices 10 can be distributed in the cell managed by each access network device 20. The terminal device can also be referred to simply as a terminal device or a UE, and those skilled in the art can understand its meaning.

[0038] The access network device 20 is a device deployed in an access network to provide wireless communication functions for the terminal device 10. The access network device 20 can include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems using different wireless access technologies, the names of devices with access network device functions can be different, for example, in a 5G NR system, it is called gNodeB or gNB. As communication technology evolves, the name of the "access network device" may change. For ease of description, in the embodiments of the present application, the above-mentioned devices that provide wireless communication functions for the terminal device 10 are collectively referred to as access network devices. In some embodiments, through the access network device 20, a communication relationship can be established between the terminal device 10 and the core network element 30. Illustratively, in the LTE (Long Term Evolution) system, the access network device 20 can be an EUTRAN (Evolved Universal Terrestrial Radio Access Network) or one or more eNodeBs in the EUTRAN; in the 5G NR system, the access network device 20 can be a RAN (Radio Access Network) or one or more gNBs in the RAN. In the embodiments of the present application, the "network device" refers to the access network device 20, such as a base station, unless otherwise specified.

[0039] The core network element 30 is a network element deployed in the core network, and the main functions of the core network element 30 are to provide user connection, manage users, and complete bearer for services, and to provide an interface to external network devices as a bearer network device. For example, the core network element in the 5G NR system can include AMF (Access and Mobility Management Function) entities, UPF (User Plane Function) entities, and SMF (Session Management Function) entities.

[0040] In some embodiments, the access network device 20 and the core network element 30 communicate with each other through some air interface technology, such as the NG interface in the 5G NR system. The access network device 20 and the terminal device 10 communicate with each other through some air interface technology, such as the Uu interface.

[0041] The "5G NR system" in the embodiments of the present application can also be referred to as a 5G system or an NR system, but those skilled in the art can understand its meaning. The technical solutions described in the embodiments of the present application can be applicable to the LTE system, and can also be applicable to the 5G NR system, and can also be applicable to the subsequent evolution system (for example, the B5G (Beyound 5G) system, the 6G system (6th Generation System, the sixth generation mobile communication system)) of the 5G NR system, and can also be applicable to other communication systems such as the NB-IoT (Narrow Band Internet of Things, Narrow Band Internet of Things) system, and the like, and the present application does not limit this.

[0042] In the embodiments of the present application, the network device can provide services for a cell, and the terminal device communicates with the network device through the transmission resource (for example, the frequency domain resource, or the spectrum resource) on the carrier used by the cell. The cell can be a cell corresponding to the network device (for example, a base station), and the cell can belong to a macro base station or a base station corresponding to a small cell (Small cell). The small cell can include a metro cell, a micro cell, a pico cell, a femto cell, and the like. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-speed data transmission services.

[0043] Before introducing the technical solutions of the present application, the related technologies involved in the present application are introduced and explained. The following related technologies can be combined with the technical solutions of the embodiments of the present application in any way, and all belong to the protection scope of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0044] 1. Network energy saving technology

[0045] Network energy saving (NES) is crucial for environmental sustainability, reducing environmental impact (greenhouse gas emissions), and saving operating costs. With the popularity of 5G in various industries and geographical areas, it is handling more advanced services and applications (such as extended reality (Extended Reality, XR)) that require extremely high data rates, and network devices become more dense, use more antennas, wider frequency bands, and more frequency bands. The environmental impact of 5G needs to be controlled, and new solutions need to be developed to improve network energy saving.

[0046] Energy consumption has become a key part of the operator's operating expenses (OPEX). According to the report of GSMA (Global System for Mobile Communications Association), the energy cost of mobile networks accounts for about 23% of the total cost of operators. Most of the energy consumption comes from the wireless access network, especially the active antenna unit (AAU), and a smaller share of the data center and fiber transmission. The power consumption of wireless access can be divided into two parts: the dynamic part, which is consumed only when data transmission / reception is performed; and the static part, which is always consumed to maintain the necessary operation of the wireless access equipment even when data transmission / reception is not performed.

[0047] Network energy saving technologies, including technologies classified by time, frequency, space and power domains, and the impact on traditional UEs and specifications. The technologies in the time and frequency domains mainly aim to reduce the power consumption of the dynamic part by trying to turn off more symbols on one or more carriers to achieve base station micro-sleep, or even reduce the static power consumption part by expanding the interval between continuous active transmission / reception occasions to achieve base station light / deep sleep. The technologies in the space and power domains mainly aim to reduce the power consumption of the TRX (Transceiver) chain and the PA (Power Amplifier) by trying to turn off more spatial elements and / or reduce the transmission power / power spectral density, or improve the PA efficiency.

[0048] The work item for NR (New Radio) network energy saving in 3GPP (3rd Generation Partnership Project) introduces protocol network energy saving technologies, which are mainly used for RRC (Radio Resource Control) connected state, user-specific signals and channels, and low-load scenarios. The technologies specified in the related technologies include:

[0049] • SSB (Synchronization Signal Block) free SCell (Secondary Cell) operation for inter-band CA (Carrier Aggregation) and co-sited cells in FR (Frequency Range) 1.

[0050] • Cell DTX (Discontinuous Transmission) / DRX (Discontinuous Reception) mechanism enhancements including cell DTX / DRX alignment with UE DRX in RRC_CONNECTED mode.

[0051] • Inter-node information exchange for cell DTX / DRX.

[0052] • Techniques in spatial and power domains to enable efficient adaptation of spatial elements and power offset values between PDSCH (Physical Downlink Shared Channel) and CSI-RS (Channel-State Information Reference Signal).

[0053] • Mechanisms to prevent legacy UEs from camping on cells employing Rel-18 NES (Network Energy Saving) techniques.

[0054] • CHO (Connection Establishment Optimization) procedure enhancements.

[0055] • Inter-node beam activation and enhancements to paging limited to a limited area.

[0056] • Corresponding RRM (Radio Resource Management) / RF (Radio Frequency) core requirements.

[0057] The above techniques aim to improve the energy efficiency of 5G networks, particularly in user connected state and low load situations, by optimizing the use of signals and channels, improving energy management of cells, and reducing unnecessary energy consumption. Through these measures, operators can reduce operating costs while reducing the impact on the environment.

[0058] Further enhancements to network energy saving techniques are also planned in related technologies, including:

[0059] • On-demand activation of Synchronization Signal Block (SSB) operation for Secondary Cells (SCells) for User Equipment (UE) configured with Carrier Aggregation (CA) in connected state and signaling methods:

[0060] ■ Define triggering methods, including sending a wake-up signal through existing uplink signals / channels of the UE, through backhaul cell on / off indication, or SCell activation / deactivation signaling.

[0061] ■On-demand SSB can be used for SCell time / frequency synchronization, L1 / L3 measurement and SCell activation.

[0062] • For UEs in idle / inactive mode, the procedure and signaling method of receiving system information block 1 (SIB1) on-demand, including:

[0063]

[0064] ■Triggering method of uplink wake-up signal using existing signals / channels.

[0065] ■Providing wake-up signal configuration to UEs through information exchange between gNBs.

[0066] • Support for specifying adaptation of common signal / channel transmission:

[0067] ■Adaptation of SSB in time domain, such as adaptive period.

[0068] ■Adaptation of PRACH (Physical Random Access Channel) in time domain.

[0069] ■Study of adaptation of PRACH in spatial domain, such as non-uniform PRACH resources per SSB, and specify if found beneficial.

[0070] ■Adaptation of paging occasions in time domain by limiting paging occasions.

[0071] 2、SS (Synchronization Signal) / PBCH (Physical Broadcast Channel) block in NR

[0072] In the NR system, common channels and signals such as synchronization signals and broadcast channels need to be covered by multi-beam scanning to facilitate the reception of UEs within the cell. Multi-beam transmission of synchronization signals is achieved by defining SS / PBCH burst set. A SS burst set contains one or more SS / PBCH blocks. A SS / PBCH block is used to carry the synchronization signal and broadcast channel of one beam. Therefore, a SS burst set can contain the synchronization signals of SS block number beams in the cell. The maximum number of SS block number L is related to the frequency band of the system:

[0073] ​– For frequency range up to 3GHz, L is 4

[0074] – For frequency range from 3GHz to 6GHz, L is 8

[0075] – For frequency range from 6GHz to 52.6GHz, L is 64

[0076] One SS / PBCH block (short for Synchronization Signal and PBCH block) contains one symbol of PSS (Primary Synchronization Signal), one symbol of SSS (Secondary Synchronization Signal) and two symbols of NR-PBCH (New Radio Access Technology-Physical broadcast channel), as shown in Figure 2. Among them, the time-frequency resources occupied by PBCH contain DMRS (Demodulation Reference Signal) for the demodulation of PBCH.

[0077] All SS / PBCH blocks in the SS / PBCH burst set are transmitted within a 5ms time window and repeatedly transmitted at a certain period, which is configured by the high-level parameter SSB-timing, including 5ms, 10ms, 20ms, 40ms, 80ms, 160ms, etc. For the UE, the index of the SSB is obtained through the received SS / PBCH block, and the SSB index corresponds to the relative position of the SSB in the 5ms time window. The UE synchronizes the half frame or frame according to this information and the half frame indication carried in the PBCH. Among them, the index of the SS / PBCH block is indicated by the DMRS of the PBCH or the information carried by the PBCH.

[0078] 3. Transmission of SIB (System Information Block) 1

[0079] In the initial access process, the UE can obtain the CORESET#0 (Control Resource Set 0) and SearchSpace0 information in the MIB (Master information block) message carried by the PBCH in the SSB by searching for the SSB and demodulating the MIB, and determine the Type0-PDCCH (Physical Downlink Control Channel) configuration for scheduling SIB1 (System Information Block Type 1). Among them, the CORESET#0 information indicates the symbol number, RB (Resource Block) number and frequency domain offset between the Type0-PDCCH CORESET and the SSB. The SearchSpace0 information indicates the position of the Type0-PDCCH monitoring window. The Type0-PDCCH monitoring window is determined in the following way.

[0080] For the multiplexing mode of SSB and CORESET#0 as pattern 1 (pattern 1), the SSB and Type0-PDCCH are time-division. The UE monitors the Type0-PDCCH common search space in two consecutive slots. The starting slot number of the two consecutive slots is n0. Each SSB with number i corresponds to a monitoring window, and the starting slot number n0 of the monitoring window is determined by the following formula:

[0081] μ∈{0,1,2,3}, the value of μ is related to the subcarrier spacing of PDCCH, which can be determined according to Table 1 as follows.

[0082] Table 1: Value of μ

[0083] After determining the slot number n0, the radio frame number SFN in which the monitoring window is located is further determined. C : or

[0084] That is, when the number of slots calculated according to is less than the number of slots contained in one radio frame, SFN C is an even radio frame, and when it is greater than the number of slots contained in one radio frame, SFN C is an odd radio frame.

[0085] For SSB and CORESET#0 multiplex pattern 2, 3, the UE monitors Type0-PDCCH in one slot, and the period of the monitoring slot is equal to the period of SSB. In each monitoring period, the SSB with index i corresponds to the number n of the monitoring slot C and the radio frame number SFN where it is located C and the starting symbol in the slot, which is indicated by SearchSpace#0 information.

[0086] Therefore, the resource position of Type0-PDCCH scheduling SIB1 transmission is associated with SSB index. SSB and associated Type0-PDCCH and PDSCH carrying SIB1 have QCL (Quasi Co-Located) relationship, so that the UE can detect PDCCH scheduling SIB1 transmission and PDSCH carrying SIB1 through the QCL parameter of the antenna port related to receiving SSB.

[0087] In the NES technology provided by the related art, for the UE in the connected state, the network energy saving technology is mainly applied to the secondary cell Scell under the CA configuration. For the UE in the idle / inactive mode, the network energy saving technology is applied to the cell for cell reselection. That is, the network energy saving cell (referred to as NES cell) cannot work independently from the normal cell, and the UE needs to rely on the normal cell to meet the mobility requirements or obtain the related configuration information of the NES cell, such as the configuration information of the uplink wake-up signal, for triggering the transmission of on-demand SSB (on-demand SSB) or on-demand SIB1 on the NES cell. When the UE triggers the on-demand SIB1 through the wake-up signal, the network device will perform SIB1 transmission. The SIB1 transmission corresponds to the transmission of SSB in the cell, that is, for the actually transmitted SSB in the cell, there is corresponding SIB1 transmission. That is, SIB1 and SSB perform transmission in the same beam sweeping manner. This is the same as the transmission manner of SIB1 in the existing non-NES cell. This SIB1 transmission manner cannot be matched according to the demand of the UE transmitting the wake-up signal in the cell, causing additional power consumption of SIB1 transmission.

[0088] With the development of communication technology, the coverage of network devices is wider, and more terminal devices are supported for connection, and the power consumption of network devices also increases, so network energy saving technology needs to be considered in the design process, and the NES technology based on 5G in the related art cannot meet this demand.

[0089] Please refer to FIG. 3, which shows a flowchart of an information transmission method provided by an embodiment of the present application. The method is executed by a terminal device. The method includes the following step 310.

[0090] In step 310, the terminal device sends a wake-up signal, which is used to request the network device to send a first system message corresponding to at least one first beam or first signal.

[0091] Correspondingly, the network device receives the wake-up signal.

[0092] Regarding the working state of the cell:

[0093] In some embodiments, the network device corresponds to a first cell. In some embodiments, the first cell works in an energy-saving state. In some embodiments, the energy-saving state means that the first cell applies a network energy-saving technology in the working process, and thus the first cell is also called NES cell in the embodiments of the present application. For a cell that does not apply a network energy-saving technology in the working process, it is called normal state in the embodiments of the present application. It can also have other names, which are not limited in the present application.

[0094] 1. Energy-saving state

[0095] In some embodiments, if the network device corresponds to the first cell and the first cell works in the energy-saving state, the network device reduces the sending of public signals, such as synchronization signals, system messages, etc. Among them, part of the system messages can be sent in an on-demand manner through the demand of the UE. Without the demand of the UE, no sending is performed to save energy. In order to achieve extreme energy saving, the cell in the NES state can also not send the synchronization signal, such as SSB. The SSB is sent in an on-demand (OD) manner. The UE triggers the NES cell to send the on-demand SSB through the wake-up signal.

[0096] 2. Normal state

[0097] In some embodiments, if the network device corresponds to the second cell and the second cell works in the normal state, the network device sends the synchronization signal, broadcast message and system message. The related information sent by the network device can be used for the UE to identify the second cell and obtain the system message, so as to camp on or access the second cell. Taking the 5G system as an example, for the second cell, the network device sends the cell-defining SSB, and the PBCH in the SSB carries the broadcast message. The UE can obtain the resource information of the PDCCH scheduling the system message SIB1 according to the broadcast message, so as to detect the PDCCH to receive SIB1.

[0098] Regarding the first beam, the first signal, the first system message:

[0099] In some embodiments, the first beam is any one of the beams through which the network device covers the first cell. Illustratively, the network device covers the first cell through 8 beams, the first beam can be any one of the 8 beams. The wake-up signal is used to request the network device to send the first system message corresponding to at least one of the 8 beams.

[0100] In some embodiments, the first signal is a signal sent by the network device through the above-mentioned beams covering the first cell. In some embodiments, the network device sends the first signal in the form of beam sweeping. In some embodiments, the first signal is a signal for sending a system message, or a signal block, or a signal time-frequency domain structure. Illustratively, the first signal is SSB. In some embodiments, at least one first signal is sent on any one or more of the above-mentioned beams covering the first cell. Illustratively, the network device covers the first cell through 8 beams, and at least one first signal is a first signal sent on at least one of the 8 beams.

[0101] In some embodiments, the wake-up signal is used to request the network device to send the first system message. In some embodiments, the first system message is one or a group of system messages of different types or different functions or different uses. If the system messages of different types or different functions or different uses are divided by SIB, the first system message can be SIB. Illustratively, the first system message includes key system messages related to accessing the cell, such as SIB1

[0102] Regarding how the wake-up signal indicates at least one first beam and / or at least one first signal, and how it indicates the first system message:

[0103] In some embodiments, the wake-up signal is used to indicate at least one first beam and / or at least one first signal. In some embodiments, the wake-up signal is also used to indicate the requested first system message.

[0104] In some embodiments, the wake-up signal can implicitly indicate at least one first beam and / or at least one first signal, or explicitly indicate at least one first beam and / or at least one first signal, or implicitly and explicitly indicate at least one first beam and / or at least one first signal.

[0105] 1. Explicit indication

[0106] In some embodiments, the wake-up signal explicitly indicates the at least one first beam and / or the at least one first signal. For example, the wake-up signal includes an indication information which is dedicated to indicate the at least one first beam and / or the at least one first signal.

[0107] In some embodiments, the wake-up signal includes a first indication information which is used to indicate the at least one first beam and / or the at least one first signal. In some embodiments, the first indication information can be an information carried in the wake-up signal, or one or more bits in the wake-up signal, or one or more fields in the wake-up signal. For example, the first indication information is one or more bits in the wake-up signal, such as a bitmap. For example, one bit in the bitmap corresponds to one bit or signal. For example, if the value of one bit in the bitmap is 1, it means that the beam corresponding to the bit is the first beam, or the signal corresponding to the bit is the first signal.

[0108] In some embodiments, the first indication information is a sequence information carried in the wake-up signal. Different sequence information corresponds to different beams or signals. For example, the wake-up signal is a PRACH, and the first indication information is a random access preamble carried in the PRACH. Different random access preambles correspond to different beams or first signals.

[0109] For example, in the explicit manner, the UE can carry an indication information in the wake-up signal to indicate the beam or SSB corresponding to the on-demand SIB1. For example, the wake-up signal carries a bitmap information, and different bits in the bitmap correspond to different beams in the first cell. If the bit is 1, it means that the SIB1 is triggered to be sent in the beam corresponding to the bit; if the bit is 0, it means that the SIB1 is not triggered to be sent in the beam corresponding to the bit. For example, the wake-up signal can be carried in the PUCCH or PUSCH channel, and the information bits carried in these channels are used to indicate the beam or SSB corresponding to the on-demand SIB1. For another example, the wake-up signal is in the form of a sequence, and different sequences correspond to different beams or SSBs. For example, the wake-up signal can be a PRACH, and different preamble sequences correspond to different beams or SSBs.

[0110] 2. Implicit indication

[0111] In some embodiments, the wake-up signal implicitly indicates the at least one first beam and / or the at least one first signal. In some embodiments, there is an association between the time-frequency resource occupied by the wake-up signal and the at least one first beam and / or the at least one first signal. Exemplarily, there is a mapping relationship between the time-frequency resource occupied by the wake-up signal and the identification information of the at least one first beam and / or the at least one first signal.

[0112] Exemplarily, in the implicit manner, the terminal device can determine the beam corresponding to the transmitted SIB1 or the corresponding SSB based on the time-frequency resource where the wake-up signal detected by the network device is located. There is an association between the time-frequency resource where the wake-up signal is located and the beam or the SSB. For example, the wake-up signals transmitted on different time-frequency resources are associated with the downlink beams or the SSBs. When the network device detects the wake-up signal on the corresponding time-frequency resource, it determines the beam associated with the time-frequency resource where the wake-up signal is located to transmit the SIB1, or determines the SSB associated with the time-frequency resource where the wake-up signal is located to transmit the SIB1 on the time-frequency resource associated with the SSB. The time-frequency resource where the wake-up signal is located can be associated with one or a group of downlink beams or SSBs, thereby triggering the transmission of SIB1 on one or a group of time-frequency resources.

[0113] 3. Combination of explicit and implicit indication

[0114] In some embodiments, the wake-up signal implicitly or explicitly indicates the at least one first beam and / or the at least one first signal. Exemplarily, the time-frequency resource occupied by the wake-up signal has an association with the first beam set and / or the first signal set, and the wake-up signal includes second indication information, which is used to indicate at least one first beam in the first beam set and / or at least one first signal in the first signal set. In some embodiments, the first beam set includes at least one first beam, and the first signal set includes at least one first signal.

[0115] Exemplarily, the explicit manner and the implicit manner can be used in combination. The time-frequency resource where the wake-up signal is located is associated with the beam or the SSB. For example, the time-frequency resource where the wake-up signal is located is associated with a group of beams or SSBs. The wake-up signal explicitly indicates those beams or SSBs in the group of beams or SSBs to determine the transmission of SIB1 on the time-frequency resource associated with those beams or SSBs.

[0116] Although the time-frequency resource where the UE sends the wake-up signal is associated with a beam or SSB, considering the UE's movement within the first cell, the wake-up signal can trigger the network to send SIB1 on a set of downlink beams or a set of SSBs associated with the time-frequency resource. For example, the network can send SIB1 on the time-frequency resource corresponding to a beam or SSB with similar coverage to the time-frequency resource where the wake-up signal is located.

[0117] 4. Instruct the first system message

[0118] In some embodiments, the wake-up signal is further used to indicate the requested first system message. Exemplarily, the wake-up signal is further used to indicate that the requested first system message is SIB1. In some embodiments, the wake-up signal may implicitly indicate the requested first system message or explicitly indicate the requested first system message. Exemplarily, the modulation and coding employed by the wake-up signal is associated with the requested first system message. Exemplarily, the wake-up signal also includes second indication information, which is used to indicate the requested first system message.

[0119] In some embodiments, the first system message sent by the network device is broadcast. In some embodiments, the network device sends a first system message corresponding to a first beam, and all terminal devices covered by the first beam can receive the first system message.

[0120] The technical solution provided in this application embodiment allows a terminal device to request a network device to send a first system message corresponding to a first beam and / or a first signal via a wake-up signal. The network device can then send only the first system message corresponding to the first beam and / or the first signal, without needing to send system messages corresponding to each beam and / or signal, thus achieving on-demand transmission for the terminal device and energy saving for the network device.

[0121] Regarding how the terminal equipment determines at least one first beam and / or at least one first signal:

[0122] Please refer to Figure 4, which shows a schematic diagram of the beam distribution of a first cell according to an embodiment of this application. Exemplarily, the network device covers the first cell using eight beams, and transmits signals on these eight beams. UE1 to UE4 are each within the coverage area of ​​four beams. Specifically, UE1 is within the coverage area of ​​beam 1, UE2 is within the coverage area of ​​beam 3, UE3 is within the coverage area of ​​beam 5, and UE4 is within the coverage area of ​​beam 6.

[0123] Next, we will take the beam distribution of the first cell shown in Figure 4 as an example to illustrate how the terminal device determines at least one first beam and / or at least one first signal.

[0124] In some embodiments, the method further comprises the following step 320.

[0125] At step 320, the terminal device receives at least one second signal, the second signal having a quasi co-location relationship with the first channel and / or the second channel, the first channel being used to carry second information, the second information being used to schedule the first system message, the second channel being used to carry the first system message.

[0126] Correspondingly, the network device transmits at least one second signal.

[0127] In some embodiments, the network device transmits the second signal on the beams covering the first cell. Illustratively, the network device transmits the second signal on the 8 beams shown in FIG. 4. In some embodiments, the network device respectively transmits the second signals corresponding to the 8 beams.

[0128] In some embodiments, the second signal is a reference signal. Illustratively, the second signal can be any one of the reference signals in a set of reference signals. For example, the second signal is a PRS.

[0129] In some embodiments, the second signal can also be a synchronization signal. Illustratively, the second signal is an SSB. In some embodiments, if the second signal is an SSB, the second signal does not carry the first system message. Illustratively, the second signal is an SSB, and the second signal only carries an MIB but does not carry an SIB.

[0130] In some embodiments, the first channel is used to carry second information, the second information being used to schedule the first system message. In some embodiments, the second information is DCI used to schedule the first system message. In some embodiments, the first channel is a control channel used to carry control signaling. Illustratively, the first channel is a PDCCH.

[0131] In some embodiments, the second channel is used to carry the first system message. In some embodiments, the second channel is a data channel used to carry data. Illustratively, the second channel is a PDSCH.

[0132] In some embodiments, the second signal has a quasi co-location relationship with the first channel and / or the second channel, and the terminal device can perform detection on the first channel and / or the second channel according to the QCL parameter corresponding to the antenna port receiving the second channel, to receive the first channel and / or the second channel.

[0133] In some embodiments, the at least one first beam and / or the at least one first signal is determined based on a measurement quality of the at least one second signal. In some embodiments, the terminal device measures the at least one second signal to obtain the measurement quality of the at least one second signal. In some embodiments, the measurement quality is used to characterize a channel quality of the second signal. Exemplarily, the measurement quality can be represented by at least one of the following parameters: RSRQ, SINR, RSRP.

[0134] In some embodiments, the terminal device determines, as the at least one first beam, beams corresponding to N second signals of the at least one second signal that satisfy a first condition, N being a positive integer. In some embodiments, the terminal device determines, as the at least one first signal, the at least one first signal based on the N second signals of the at least one second signal that satisfy the first condition.

[0135] In some embodiments, the terminal device determines, as the at least one first beam, beams corresponding to N second signals of the at least one second signal that satisfy a first condition, N being a positive integer. In some embodiments, the terminal device determines, as the at least one first signal, the at least one first signal based on the N second signals of the at least one second signal that satisfy the first condition.

[0136] In some embodiments, the first condition can be predefined or preconfigured, or configured by the network device. Exemplarily, the first condition can be configured by the network device through the second signal. Exemplarily, the second signal includes a first indication field, and the first indication field is used to indicate the first condition.

[0137] In some embodiments, the first condition can include at least one of the following:

[0138] the measurement quality exceeds a first threshold value;

[0139] a measurement quality ranking exceeds a second threshold value.

[0140] In some embodiments, the first threshold value and / or the second threshold value can be predefined or preconfigured, or configured by the network device. Exemplarily, the first threshold value and / or the second threshold value can be configured by the network device through the second signal.

[0141] In some embodiments, the measurement quality ranking refers to ranking the measurement quality of each second signal in order from best to worst.

[0142] Exemplarily, taking the second signal as SSB and the first system message as SIB1 as an example, the terminal device can determine the target SSB (i.e., the second signal satisfying the first condition) through detection of the SSB. For example, the SSB with the best measurement quality is taken as the target SSB. Since the SSB is transmitted through beam sweeping, when the terminal device measures the quality of a certain SSB to be good, it can be considered that the terminal device is in the coverage range of the beam corresponding to the SSB. The terminal device can determine, according to the measurement result, that the network device is triggered to transmit SIB1 on the beam corresponding to the SSB, so that SIB1 can be successfully received. The terminal device does not need to trigger the network device to transmit SIB1 on the beam corresponding to the SSB with poor measurement result.

[0143] Exemplarily, as shown in FIG. 5, UEs 1-4 respectively detect the SSBs on the respective beams to have the best measurement quality, and through the respective wake-up signals, the transmission of SIB1 on the 4 beams can be woken up, without the need to transmit SIB1 on all 8 beams, thereby reducing the power consumption of the network device. Among them, UE1 is in the coverage range of beam 1, UE2 is in the coverage range of beam 3, UE3 is in the coverage range of beam 5, and UE4 is in the coverage range of beam 6, and the network device respectively transmits SIB1 on beam 1, beam 3, beam 5 and beam 6.

[0144] In some embodiments, the terminal device determines N second signals satisfying the first condition from the at least one second signal, and determines at least one first beam based on the beams corresponding to the N second signals. Exemplarily, the terminal device determines the beams corresponding to the N second signals and the beams around the beams corresponding to the N second signals as the at least one first beam. Taking beam 1 in FIG. 5 as an example, the terminal device determines beam 1, and determines beam 1, beam 2 and beam 8 as the at least one first beam.

[0145] In some embodiments, the terminal device determines N second signals satisfying the first condition from the at least one second signal, and determines the first signal transmitted on the same beam as the N second signals as the at least one first signal. Exemplarily, the terminal device determines the first signal transmitted on the same beam as the N second signals and the first signal transmitted on the beams around the beams corresponding to the N second signals as the at least one first signal. Taking beam 1 in FIG. 5 as an example, the terminal device determines the first signal transmitted on beam 1, and determines the first signals transmitted on beam 1, beam 2 and beam 8 as the at least one first signal.

[0146] Through the above method, the terminal device can determine the first system message corresponding to the first beam and / or the first signal requested based on the second signal corresponding to each beam respectively transmitted by the network device, so as to ensure that the first system message transmitted by the network device can be correctly received by the terminal device, and unnecessary retransmission is avoided.

[0147] As to how the terminal device determines the transmission state of the first system message corresponding to the first beam and / or the first signal:

[0148] In some embodiments, before sending the wake-up signal, the terminal device needs to determine the transmission state of the first system message corresponding to the at least one first beam and / or the at least one first signal. In some embodiments, in the case that the transmission state of the first system message corresponding to the at least one first beam and / or the at least one first signal is in the off state, the terminal device sends the wake-up signal.

[0149] In some embodiments, the transmission state of the first system message corresponding to the at least one beam is in the off state. In some embodiments, the transmission state of the first system message associated with the at least one first signal is in the off state.

[0150] 1. The terminal device detects and determines

[0151] In some embodiments, the terminal device detects the second signal to determine the transmission state of the first system message corresponding to the first beam and / or the first signal. For example, the second signal has a quasi-co-location relationship with the first channel and / or the second channel, and the terminal device can detect whether the first channel carries second information for scheduling the first system message, and / or detect whether the second channel carries the first system message, to determine the transmission state of the first system message. For example, the first channel carries second information for scheduling the first system message, and / or the second channel carries the first system message, to determine that the transmission state of the first system message is in the on state. For example, the first channel does not carry second information for scheduling the first system message, and / or the second channel does not carry the first system message, to determine that the transmission state of the first system message is in the off state.

[0152] In some embodiments, in the first period, if the first system message is not detected on the first channel and / or the second channel associated with the second signal, the terminal device determines that the transmission state of the first system message on the beam corresponding to the second signal is in the off state, and / or the terminal device determines that the transmission state of the first system message associated with the second signal is in the off state.

[0153] In some embodiments, the first period is predefined or preconfigured, or is configured by the network device. For example, the first period is configured by the network device through the second signal.

[0154] Taking the first channel as PDCCH, the second channel as PDSCH, the second signal as SSB, and the first system message as SIB1 as an example, the UE can attempt to detect the PDCCH on the resource where the PDCCH for scheduling the SIB1 transmission associated with the target SSB (the second signal satisfying the first condition) is located, and if a certain condition is met, such as not detecting the SIB1 within a certain period (the first period), it is determined that the SIB1 transmission associated with the current target SSB is closed. The UE can send a wake-up signal on the resource of the wake-up signal associated with the target SSB to trigger the transmission of the SIB1 associated with the SSB.

[0155] 2. Network device indication

[0156] In some embodiments, the transmission status of the first system message can also be indicated by the network device. For example, the network device indicates the transmission status of the first system message through the second signal. In some embodiments, the network device indicates the transmission status of the first system message corresponding to at least one beam, and / or indicates the transmission status of the first system message associated with the second signal, and / or indicates the transmission status of the first system message associated with the first signal.

[0157] In some embodiments, the network device indicates the transmission status of the first system message through information or a sequence included in the second signal.

[0158] 2.1. Indication by second indication information

[0159] In some embodiments, the second signal includes a third channel, and the third channel is used to carry second indication information, and the second indication information is used to indicate the transmission status of the first system message corresponding to at least one beam, and / or is used to indicate the transmission status of the first system message associated with the second signal, and / or is used to indicate the transmission status of the first system message associated with the first signal.

[0160] In some embodiments, when the second signal is an SSB, the third channel is a PBCH. In some embodiments, the second indication information is carried in the PBCH.

[0161] In some embodiments, the first bit field can be included in the PBCH, the first bit field being used to indicate the transmission state of the first system message corresponding to the at least one beam, and / or being used to indicate the transmission state of the first system message associated with the second signal, and / or being used to indicate the transmission state of the first system message associated with the first signal. In some embodiments, the PBCH is used to carry the MIB and / or the layer 1 related information. In some embodiments, the second indication information is carried in the MIB. In some embodiments, the second indication information is carried in the layer 1 related information. In some embodiments, the first bit field can be included in the MIB related bits or in the layer 1 related information bits.

[0162] For example, the second indication information is carried by the PBCH to indicate the transmission state of the SIB1 (first system message) associated with the SSB (second signal), a bit field can be included in the PBCH to indicate the transmission state of the SIB1 associated with the SSB. The information carried by the PBCH includes the MIB information from the higher layer and the information bits from the layer 1 (layer 1 related information). In some embodiments, the bit field can not be included in the MIB information, but in the bit field of the layer 1 related information carried by the PBCH.

[0163] 2.2, indication by DMRS sequence

[0164] In some embodiments, the DMRS sequence of the third channel is a first DMRS sequence, the first DMRS sequence being used to indicate the transmission state of the first system message corresponding to the at least one beam, and / or being used to indicate the transmission state of the first system message associated with the second signal, and / or being used to indicate the transmission state of the first system message associated with the first signal.

[0165] In some embodiments, the DMRS sequence has an association relationship with the transmission state of the first system message.

[0166] In some embodiments, if the first DMRS sequence belongs to a first DMRS sequence set, the first DMRS sequence is used to indicate that the transmission state of the first system message corresponding to the at least one beam is in a closed state, and / or is used to indicate that the transmission state of the first system message associated with the second signal is in a closed state, and / or is used to indicate that the transmission state of the first system message associated with the first signal is in a closed state.

[0167] In some embodiments, if the first DMRS sequence belongs to a second DMRS sequence set, the first DMRS sequence is used to indicate that the transmission state of the first system message corresponding to the at least one beam is in an open state, and / or is used to indicate that the transmission state of the first system message associated with the second signal is in an open state, and / or is used to indicate that the transmission state of the first system message associated with the first signal is in an open state.

[0168] In some embodiments, there is no same DMRS sequence in the first set of DMRS sequences and the second set of DMRS sequences.

[0169] In some embodiments, the first set of DMRS sequences and / or the second set of DMRS sequences are predefined or preconfigured, or indicated by the network device. For example, the first set of DMRS sequences and / or the second set of DMRS sequences are indicated by the network device through the second signal. In some embodiments, the association between the first set of DMRS sequences and / or the second set of DMRS sequences and the transmission state of the first system message is predefined or preconfigured, or indicated by the network device. For example, the association between the first set of DMRS sequences and / or the second set of DMRS sequences and the transmission state of the first system message is indicated by the network device through the second signal.

[0170] For example, the transmission state of the SSB-associated SIB1 is the closed state, and the sequence group of the corresponding PBCH DMRS sequence is sequence group 1. The transmission state of the SSB-associated SIB1 is the open state, and the sequence group of the corresponding PBCH DMRS sequence is sequence group 2.

[0171] 2.3, indicating by the first sequence

[0172] In some embodiments, the second signal includes a first sequence, the first sequence is used to indicate the transmission state of the first system message corresponding to at least one beam, and / or is used to indicate the transmission state of the first system message associated with the second signal, and / or is used to indicate the transmission state of the first system message associated with the first signal.

[0173] In some embodiments, the first sequence can be any sequence carried by the second signal. For example, the second signal is an SSB, and the first sequence can be a PSS and / or an SSS. For example, the second signal is a reference signal, and the first sequence can be a preamble sequence corresponding to the reference signal.

[0174] In some embodiments, if the first sequence belongs to the first sequence set, the first sequence is used to indicate that the transmission state of the first system message corresponding to at least one beam is in the closed state, and / or is used to indicate that the transmission state of the first system message associated with the second signal is in the closed state, and / or is used to indicate that the transmission state of the first system message associated with the first signal is in the closed state.

[0175] In some embodiments, if the first sequence belongs to the second sequence set, the first sequence is used to indicate that the transmission state of the first system message corresponding to the at least one beam is in an open state, and / or, is used to indicate that the transmission state of the first system message associated with the second signal is in an open state, and / or, is used to indicate that the transmission state of the first system message associated with the first signal is in an open state.

[0176] In some embodiments, there is no same sequence in the first sequence set and the second sequence set.

[0177] In some embodiments, the first sequence set and / or the second sequence set is predefined or preconfigured, or is indicated by the network device. For example, the first sequence set and / or the second sequence set is indicated by the network device through the second signal. In some embodiments, the association between the first sequence set and / or the second sequence set and the transmission state of the first system message is predefined or preconfigured, or is indicated by the network device. For example, the association between the first sequence set and / or the second sequence set and the transmission state of the first system message is indicated by the network device through the second signal.

[0178] For example, the transmission state of the SSB-associated SIB1 is closed, and the sequence group in which the corresponding PSS or SSS sequence is located is sequence group 1. The transmission state of the SSB-associated SIB1 is open, and the sequence group in which the corresponding PSS or SSS sequence is located is sequence group 2.

[0179] Through the above method, the terminal device can determine the transmission state of the first system message corresponding to the at least one first beam and / or the at least one first signal through detection or through the indication of the network device, and further determine whether to send the wake-up signal. Various ways of determining the transmission state of the first system message corresponding to the at least one first beam and / or the at least one first signal are provided, and the network device can determine the adopted way in combination with actual application.

[0180] Regarding how the terminal device acquires the configuration of the wake-up signal:

[0181] In some embodiments, the first system message is the system message of the first cell. Regarding the configuration of the wake-up signal sent by the terminal device, the present application also provides exemplary embodiments. In some embodiments, the configuration of the wake-up signal can include time-frequency resources occupied by the wake-up signal, frame structure of the wake-up signal, coding and decoding mode of the wake-up signal, code domain resources of the wake-up signal, and the like.

[0182] 1、predefined

[0183] In some embodiments, the wake-up signal is predefined. In some embodiments, the wake-up signal is predefined or preconfigured. The terminal device can transmit the wake-up signal according to the predefined or preconfigured wake-up signal. The wake-up signal is configured in a predefined or preconfigured manner, which can reduce the complexity of the scheme implementation.

[0184] 2、configured by the second signal

[0185] In some embodiments, the wake-up signal is configured by the second signal.

[0186] In some embodiments, the second signal is used to indicate the time-frequency resource occupied by the wake-up signal. In some embodiments, the second signal is used to indicate the set of time-frequency resources occupied by the wake-up signal. Exemplarily, the second signal explicitly and / or implicitly indicates the time-frequency resource occupied by the wake-up signal.

[0187] In some embodiments, the second signal explicitly indicates the time-frequency resource occupied by the wake-up signal. Exemplarily, the second signal includes an indication information dedicated to indicating the time-frequency resource occupied by the wake-up signal. For example, the second signal includes a second indication field, which is used to indicate the time-frequency resource occupied by the wake-up signal.

[0188] In some embodiments, the second signal implicitly indicates the time-frequency resource occupied by the wake-up signal. In some embodiments, the second signal has an association relationship with the time-frequency resource occupied by the wake-up signal. Exemplarily, the second signal has an association relationship with the index of the time-frequency resource occupied by the wake-up signal.

[0189] In some embodiments, the second signal has an association relationship with at least one of the following information:

[0190] the time domain resource occupied by the wake-up signal;

[0191] the frequency domain resource occupied by the wake-up signal;

[0192] the set of time domain resources occupied by the wake-up signal;

[0193] the set of frequency domain resources occupied by the wake-up signal.

[0194] In some embodiments, the second signal has an association relationship with the time domain resource and / or the frequency domain resource occupied by the wake-up signal, and then the terminal device can determine the time domain resource and / or the frequency domain resource occupied by the wake-up signal based on the second signal.

[0195] In some embodiments, the second signal has an association relationship with the set of time domain resources and / or the set of frequency domain resources occupied by the wake-up signal, and then the terminal device can randomly select a time domain resource and / or a frequency domain resource from the set of time domain resources and / or the set of frequency domain resources occupied by the wake-up signal.

[0196] In some embodiments, the second signal has an association relationship with the set of time domain resources and / or the set of frequency domain resources occupied by the wake-up signal. Then the second signal can also be used to indicate which one of the set of time domain resources and / or the set of frequency domain resources is occupied by the time-frequency resource of the wake-up signal.

[0197] Next, taking the second signal as an SSB and the first system message as an SIB1 as an example, the association relationship between the second signal and the time-frequency resource occupied by the wake-up signal will be exemplarily described.

[0198] When the UE transmits the wake-up signal, in order for the network device to successfully receive the wake-up signal, the network device needs to use the corresponding receiving beam to receive the wake-up signal. The receiving beam has an association relationship with the transmitting beam of the second signal determined by the UE. For this purpose, the time-frequency resource where the wake-up signal is located needs to have a certain association relationship with the second signal, so that when the network device receives the wake-up signal on the time-frequency resource, it can receive the wake-up signal with a suitable receiving beam.

[0199] In some embodiments, the resource of the wake-up signal has an association relationship with the SSB index. The association relationship between them can be one-to-one, many-to-one, one-to-many or many-to-many. Each SSB index is associated with the time domain and frequency domain resource location or resource location set of the wake-up signal. For example, the resource location of the wake-up signal has a certain time domain offset and frequency domain offset with the resource location of the SSB corresponding to the SSB index. The resource location of the wake-up signal can be predefined, determined according to a preset rule, or indicated by the MIB. For example, similar to the resource location of the Type0-PDCCH indicated by the MIB, the MIB can indicate the monitoring occasion, the number of symbols, the number of RBs, the frequency domain offset and other information of the resource where the wake-up signal associated with the SSB is located. Exemplarily, as shown in FIG. 6, there are four SSBs transmitted in the first cell, SSB0-3 are associated with wake-up signal resources (time-frequency resources occupied by the wake-up signal), i.e. WUS resource1-4, and there is a time domain and frequency domain offset between the SSB and the associated WUS resource.

[0200] 3. Configured by the second cell

[0201] In some embodiments, the wake-up signal is configured by the second cell, and the second cell works in a normal state. In some embodiments, the wake-up signal is configured by the broadcast message of the second cell. Exemplarily, the wake-up signal is configured by the system message of the second cell.

[0202] 4. Configured by RRC signaling

[0203] In some embodiments, the wake-up signal is configured by RRC signaling. In some embodiments, the terminal device is in an RRC connected state, and the wake-up signal can be configured by RRC signaling.

[0204] In some embodiments, the RRC signaling is used to configure the dedicated time-frequency resource of the wake-up signal.

[0205] In some embodiments, the dedicated time-frequency resource includes at least one of the following: PRACH resource; PUCCH resource; PUSCH resource.

[0206] In some embodiments, the RRC signaling is also used to indicate the transmission state of the first system message corresponding to at least one beam, and / or the transmission state of the first system message associated with at least one first signal, at least one beam being a beam of a first cell, the network device corresponding to the first cell. In some embodiments, the transmission state of the first system message corresponding to at least one beam, and / or the transmission state of the first system message associated with at least one first signal, at least one beam being a beam of a first cell, the network device corresponding to the first cell can also be MAC CE signaling or DCI indication.

[0207] In some embodiments, the terminal device is in an initial access process or in an RRC idle state, and the network device cannot use RRC signaling to configure the wake-up signal.

[0208] When the UE establishes an RRC connection with the first cell and is in an RRC-Connected (RRC connected) state, the configuration of the wake-up signal can be obtained through RRC signaling. The configuration of the wake-up signal can be different from the configuration of the wake-up signal used by the UE in the initial access process or in the RRC-Idle (RRC idle) state. For example, the network device can configure the dedicated time-frequency resource of the wake-up signal for the UE in the RRC-Connected state. For example, PRACH resource, PUCCH resource or PUSCH resource.

[0209] Further, the UE in the RRC-Connected state can determine through the indication information sent by the network device which beams or SSBs of the first cell correspond to the SIB1 in the on state and which beams or SSBs correspond to the SIB1 in the off state. The UE can not have to try to detect the SIB1 to determine whether the SIB1 is off, but can determine whether the SIB1 corresponding to a certain beam or SSB is off according to the indication information, so as to trigger the SIB1 corresponding to the beam or SSB to be sent through the wake-up signal. The indication information can be carried by DCI, MAC CE, RRC signaling, etc.

[0210] By the above method, the terminal device can obtain the configuration of the wake-up signal, so as to transmit the wake-up signal based on the configuration of the wake-up signal, so that the terminal device and the network device are consistent in understanding the wake-up signal, and unnecessary retransmission is avoided. The network device can configure the wake-up signal in different ways to make the terminal device and the network device consistent in understanding the wake-up signal.

[0211] It should be noted that the above embodiments are only introduced and described from different problems, and the contents in the above embodiments can be combined to obtain new embodiments, which are all within the protection scope of the present application.

[0212] In the above method embodiments, the technical solutions of the present application are introduced and described only from the perspective of interaction between the terminal device and the network device. The steps performed by the terminal device described above can be implemented alone as an information transmission method on the terminal device side, and the steps performed by the network device described above can be implemented alone as an information transmission method on the network device side. In addition, the embodiments provided in the present application can be combined arbitrarily to form new embodiments, which are all within the protection scope of the present application.

[0213] The following is a device embodiment of the present application, which can be used to execute the method embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.

[0214] Please refer to FIG. 7, which shows a block diagram of an information transmission device according to an embodiment of the present application. The device has the function of implementing the above-mentioned information transmission method on the terminal device side, which can be implemented by hardware or by executing corresponding software by hardware. The device can be the terminal device introduced above, or can be arranged in the terminal device. As shown in FIG. 7, the device 700 can include a sending module 710.

[0215] The sending module 710 is configured to send a wake-up signal, wherein the wake-up signal is used to request the network device to send a first system message corresponding to at least one first beam or at least one first signal.

[0216] How the wake-up signal indicates the at least one first beam and / or the at least one first signal, and how it indicates the first system message:

[0217] In some embodiments, the wake-up signal is also used to indicate the at least one first beam and / or the at least one first signal.

[0218] 1. Explicit indication

[0219] In some embodiments, the wake-up signal includes first indication information, and the first indication information is used to indicate the at least one first beam and / or the at least one first signal.

[0220] 2、Implicit indication

[0221] In some embodiments, the time-frequency resource occupied by the wake-up signal has an association relationship with the at least one first beam and / or the at least one first signal.

[0222] 3、Explicit and implicit combined indication

[0223] In some embodiments, the time-frequency resource occupied by the wake-up signal has an association relationship with a first beam set and / or a first signal set, and the wake-up signal includes second indication information, the second indication information being used to indicate the at least one first beam in the first beam set and / or the at least one first signal in the first signal set.

[0224] Regarding how the terminal device determines the at least one first beam and / or the at least one first signal:

[0225] In some embodiments, the apparatus 700 further includes a receiving module (not shown in the figure).

[0226] The receiving module is configured to receive at least one second signal, the second signal having a quasi-co-location relationship with a first channel and / or a second channel, the first channel being used to carry second information, the second information being used to schedule the first system message, and the second channel being used to carry the first system message.

[0227] In some embodiments, the at least one first beam and / or the at least one first signal is determined based on a measurement quality of the at least one second signal.

[0228] In some embodiments, the terminal device determines, as the at least one first beam, a beam corresponding to N second signals in the at least one second signal that satisfy a first condition; and / or, the terminal device determines, as the at least one first signal, based on the N second signals in the at least one second signal that satisfy the first condition; wherein N is a positive integer.

[0229] Regarding how the terminal device determines the transmission state of the first system message corresponding to the first beam and / or the first signal:

[0230] In some embodiments, the transmission state of the first system message corresponding to the at least one beam is in a closed state; and / or, the transmission state of the first system message associated with the at least one first signal is in a closed state.

[0231] 1、Terminal device detection and determination

[0232] In some embodiments, the terminal device determines that the transmission state of the first system message on the beam corresponding to the second signal is in the closed state, if the first system message is not detected on the first channel and / or the second channel associated with the second signal in the first period, and / or the terminal device determines that the transmission state of the first system message associated with the second signal is in the closed state.

[0233] 2. Network device indication

[0234] In some embodiments, the second signal comprises a third channel, the third channel is used to carry second indication information, the second indication information is used to indicate the transmission state of the first system message corresponding to at least one beam, and / or is used to indicate the transmission state of the first system message associated with the second signal, and / or is used to indicate the transmission state of the first system message associated with the first signal; or, a DMRS sequence of the third channel is a first DMRS sequence, the first DMRS sequence is used to indicate the transmission state of the first system message corresponding to the at least one beam, and / or is used to indicate the transmission state of the first system message associated with the second signal, and / or is used to indicate the transmission state of the first system message associated with the first signal; or, the second signal comprises a first sequence, the first sequence is used to indicate the transmission state of the first system message corresponding to the at least one beam, and / or is used to indicate the transmission state of the first system message associated with the second signal, and / or is used to indicate the transmission state of the first system message associated with the first signal; wherein, the at least one beam is a beam of the first cell.

[0235] In some embodiments, the second indication information is carried in a physical broadcast channel (PBCH).

[0236] In some embodiments, if the first sequence belongs to a first sequence set, the first sequence is used to indicate that the transmission state of the first system message corresponding to the at least one beam is in the closed state, and / or is used to indicate that the transmission state of the first system message associated with the second signal is in the closed state, and / or is used to indicate that the transmission state of the first system message associated with the first signal is in the closed state; or, if the first sequence belongs to a second sequence set, the first sequence is used to indicate that the transmission state of the first system message corresponding to the at least one beam is in the open state, and / or is used to indicate that the transmission state of the first system message associated with the second signal is in the open state, and / or is used to indicate that the transmission state of the first system message associated with the first signal is in the open state; wherein, there is no same sequence in the first sequence set and the second sequence set.

[0237] In some embodiments, if the first DMRS sequence belongs to a first DMRS sequence set, the first DMRS sequence is used to indicate that the transmission state of the first system message corresponding to the at least one beam is in a closed state, and / or, is used to indicate that the transmission state of the first system message associated with the second signal is in a closed state, and / or, is used to indicate that the transmission state of the first system message associated with the first signal is in a closed state; or, if the first DMRS sequence belongs to a second DMRS sequence set, the first DMRS sequence is used to indicate that the transmission state of the first system message corresponding to the at least one beam is in an open state, and / or, is used to indicate that the transmission state of the first system message associated with the second signal is in an open state, and / or, is used to indicate that the transmission state of the first system message associated with the first signal is in an open state; wherein there is no same DMRS sequence in the first DMRS sequence set and the second DMRS sequence set.

[0238] Regarding how the terminal device acquires the configuration of the wake-up signal:

[0239] In some embodiments, the first system message is a system message of a first cell, and the wake-up signal is predefined; or, the wake-up signal is configured by a second signal; or, the wake-up signal is configured by a second cell operating in a normal state; or, the wake-up signal is configured by RRC signaling.

[0240] In some embodiments, the second signal is used to indicate the time-frequency resource occupied by the wake-up signal.

[0241] In some embodiments, the second signal has an association relationship with the time-frequency resource occupied by the wake-up signal.

[0242] In some embodiments, the second signal has an association relationship with at least one of the following information: time domain resource occupied by the wake-up signal; frequency domain resource occupied by the wake-up signal; time domain resource set occupied by the wake-up signal; frequency domain resource set occupied by the wake-up signal.

[0243] In some embodiments, the RRC signaling is used to configure a dedicated time-frequency resource of the wake-up signal.

[0244] In some embodiments, the dedicated time-frequency resource includes at least one of the following: PRACH resource; PUCCH resource; PUSCH resource.

[0245] In some embodiments, the RRC signaling is also used to indicate the transmission state of the first system message corresponding to at least one beam, and / or, the transmission state of the first system message associated with at least one first signal, the at least one beam being a beam of a first cell, and the network device corresponding to the first cell.

[0246] about the working state of the cell:

[0247] In some embodiments, the first cell works in an energy saving state.

[0248] about the first beam, the first signal, the first system message:

[0249] In some embodiments, the second signal is an SSB; or, the second signal is a reference signal.

[0250] In some embodiments, the first signal is an SSB.

[0251] Exemplarily, the implementation method of each of the above problems can refer to the introduction of the above method embodiments.

[0252] The technical scheme provided by the embodiments of the present application, the terminal device can request the network device to send the first system message corresponding to the first beam and / or the first signal through the wake-up signal. The network device can only send the first system message corresponding to the first beam and / or the first signal, without sending the system message corresponding to each beam and / or signal, realizing on-demand sending for the terminal device, and realizing energy saving of the network device.

[0253] Please refer to FIG. 8, which shows a block diagram of an information transmission device provided by an embodiment of the present application. The device has the function of implementing the above-mentioned information transmission method of the network device side, which can be implemented by hardware, or by executing corresponding software by hardware. The device can be the network device introduced above, or can be arranged in the network device. As shown in FIG. 8, the device 800 can include a receiving module 810.

[0254] The receiving module 810 is configured to receive a wake-up signal, the wake-up signal being used to request the network device to send a first system message corresponding to at least one first beam or first signal.

[0255] about how the wake-up signal indicates the at least one first beam and / or the at least one first signal, and how it indicates the first system message:

[0256] In some embodiments, the wake-up signal is also used to indicate the at least one first beam and / or the at least one first signal.

[0257] 1. Explicit indication

[0258] In some embodiments, the wake-up signal includes first indication information, the first indication information being used to indicate the at least one first beam and / or the at least one first signal.

[0259] 2. Implicit indication

[0260] In some embodiments, the time-frequency resource occupied by the wake-up signal has an association relationship with the at least one first beam and / or the at least one first signal.

[0261] 3、Explicit implicit combination indication

[0262] In some embodiments, the time-frequency resource occupied by the wake-up signal has an association relationship with a first beam set and / or a first signal set, and the wake-up signal includes second indication information, the second indication information being used to indicate the at least one first beam in the first beam set and / or the at least one first signal in the first signal set.

[0263] Regarding how the terminal device determines the at least one first beam and / or the at least one first signal:

[0264] In some embodiments, the apparatus 800 further includes a sending module (not shown in the figure).

[0265] The sending module is configured to send at least one second signal, the second signal having a quasi-co-location relationship with a first channel and / or a second channel, the first channel being used to carry second information, the second information being used to schedule the first system message, and the second channel being used to carry the first system message.

[0266] In some embodiments, the at least one first beam and / or the at least one first signal is determined based on a measurement quality of the at least one second signal.

[0267] In some embodiments, the beams corresponding to the N second signals satisfying the first condition in the at least one second signal are determined by the terminal device as the at least one first beam; and / or the at least one first signal is determined by the terminal device based on the N second signals satisfying the first condition in the at least one second signal; wherein N is a positive integer.

[0268] Regarding how the terminal device determines the transmission state of the first system message corresponding to the first beam and / or the first signal:

[0269] In some embodiments, the transmission state of the first system message corresponding to the at least one beam is in a closed state; and / or the transmission state of the first system message associated with the at least one first signal is in a closed state.

[0270] 1、Terminal device detection determination

[0271] In some embodiments, the terminal device determines that the transmission state of the first system message on the beam corresponding to the second signal is in the closed state if the first system message is not detected on the first channel and / or the second channel associated with the second signal in the first period, and / or the terminal device determines that the transmission state of the first system message associated with the second signal is in the closed state.

[0272] 2. Network device indication

[0273] In some embodiments, the second signal includes a third channel, the third channel is used to carry second indication information, the second indication information is used to indicate the transmission state of the first system message corresponding to at least one beam, and / or is used to indicate the transmission state of the first system message associated with the second signal, and / or is used to indicate the transmission state of the first system message associated with the first signal; or, a DMRS sequence of the third channel is a first DMRS sequence, the first DMRS sequence is used to indicate the transmission state of the first system message corresponding to the at least one beam, and / or is used to indicate the transmission state of the first system message associated with the second signal, and / or is used to indicate the transmission state of the first system message associated with the first signal; or, the second signal includes a first sequence, the first sequence is used to indicate the transmission state of the first system message corresponding to the at least one beam, and / or is used to indicate the transmission state of the first system message associated with the second signal, and / or is used to indicate the transmission state of the first system message associated with the first signal; wherein the at least one beam is a beam of the first cell.

[0274] In some embodiments, the second indication information is carried in the PBCH.

[0275] In some embodiments, if the first sequence belongs to a first sequence set, the first sequence is used to indicate that the transmission state of the first system message corresponding to the at least one beam is in the closed state, and / or is used to indicate that the transmission state of the first system message associated with the second signal is in the closed state, and / or is used to indicate that the transmission state of the first system message associated with the first signal is in the closed state; or, if the first sequence belongs to a second sequence set, the first sequence is used to indicate that the transmission state of the first system message corresponding to the at least one beam is in the open state, and / or is used to indicate that the transmission state of the first system message associated with the second signal is in the open state, and / or is used to indicate that the transmission state of the first system message associated with the first signal is in the open state; wherein there is no same sequence in the first sequence set and the second sequence set.

[0276] In some embodiments, if the first DMRS sequence belongs to a first DMRS sequence set, the first DMRS sequence is used to indicate that the transmission state of the first system message corresponding to the at least one beam is in a closed state, and / or, is used to indicate that the transmission state of the first system message associated with the second signal is in a closed state, and / or, is used to indicate that the transmission state of the first system message associated with the first signal is in a closed state; or, if the first DMRS sequence belongs to a second DMRS sequence set, the first DMRS sequence is used to indicate that the transmission state of the first system message corresponding to the at least one beam is in an open state, and / or, is used to indicate that the transmission state of the first system message associated with the second signal is in an open state, and / or, is used to indicate that the transmission state of the first system message associated with the first signal is in an open state; wherein there is no same DMRS sequence in the first DMRS sequence set and the second DMRS sequence set.

[0277] Regarding how the terminal device acquires the configuration of the wake-up signal:

[0278] In some embodiments, the first system message is a system message of a first cell, and the wake-up signal is predefined; or, the wake-up signal is configured by a second signal; or, the wake-up signal is configured by a second cell operating in a normal state; or, the wake-up signal is configured by RRC signaling.

[0279] In some embodiments, the second signal is used to indicate the time-frequency resource occupied by the wake-up signal.

[0280] In some embodiments, the second signal has an association relationship with the time-frequency resource occupied by the wake-up signal.

[0281] In some embodiments, the second signal has an association relationship with at least one of the following information: time domain resource occupied by the wake-up signal; frequency domain resource occupied by the wake-up signal; time domain resource set occupied by the wake-up signal; frequency domain resource set occupied by the wake-up signal.

[0282] In some embodiments, the RRC signaling is used to configure a dedicated time-frequency resource of the wake-up signal.

[0283] In some embodiments, the dedicated time-frequency resource includes at least one of the following: PRACH resource; PUCCH resource; PUSCH resource.

[0284] In some embodiments, the RRC signaling is also used to indicate the transmission state of the first system message corresponding to at least one beam, and / or, the transmission state of the first system message associated with at least one first signal, the at least one beam being a beam of a first cell, and the network device corresponding to the first cell.

[0285] about the working state of the cell:

[0286] In some embodiments, the first cell works in an energy saving state.

[0287] about the first beam, the first signal, the first system message:

[0288] In some embodiments, the second signal is an SSB; or, the second signal is a reference signal.

[0289] In some embodiments, the first signal is an SSB.

[0290] Exemplarily, the implementation method of each of the above problems can refer to the introduction of the above method embodiments.

[0291] The technical scheme provided by the embodiments of the present application is that the terminal device can request the network device to send the first system message corresponding to the first beam and / or the first signal through the wake-up signal. The network device can only send the first system message corresponding to the first beam and / or the first signal, without sending the system message corresponding to each beam and / or signal, thereby realizing on-demand sending for the terminal device and realizing energy saving of the network device.

[0292] It should be noted that the apparatus provided by the above embodiments in realizing its functions is only exemplified by the division of the above various functional modules, and in actual application, the above functions can be completed by different functional modules according to actual needs, that is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above.

[0293] about the apparatus in the above embodiments, the specific manner in which each module performs operations has been described in detail in the embodiments related to the method, and will not be described in detail here. For details not described in detail in the related apparatus embodiments, refer to the above method embodiments.

[0294] Please refer to FIG. 9, which shows a structural schematic diagram of a communication device provided by an embodiment of the present application. The communication device can be the terminal device or the network device described above. The communication device 900 can include at least one of a processor 901, a transceiver 902 and a memory 903. The processor 901 is used to realize various processing functions of the communication device 900, such as generating information to be sent, processing received information, controlling sending and / or receiving, etc. The transceiver 902 is used to realize the functions of sending and / or receiving, such as realizing the functions of the sending module 710 described above, or realizing the functions of the receiving module 810 described above.

[0295] The processor 901 includes one or more processing cores, and performs various function applications and information processing by running software programs and modules.

[0296] The transceiver 902 can include a receiver and a transmitter, which can be implemented as the same wireless communication component, and can include a wireless communication chip and a radio frequency antenna.

[0297] The memory 903 can be connected to the processor 901 and the transceiver 902.

[0298] The memory 903 can be used to store a computer program executed by the processor 901, and the processor 901 is configured to execute the computer program to implement various steps in the above method embodiments.

[0299] In some embodiments, the communication device 900 is a terminal device as described in the above embodiments, and the transceiver 902 is configured to send a wake-up signal, the wake-up signal being used to request a network device to send a first system message corresponding to at least one first beam or first signal.

[0300] In some embodiments, the communication device 900 is a network device as described in the above embodiments, and the transceiver 902 is configured to receive a wake-up signal, the wake-up signal being used to request the network device to send a first system message corresponding to at least one first beam or first signal.

[0301] For details not described in the present embodiment, refer to the above embodiments, which will not be repeated here.

[0302] In addition, the memory can be implemented by any type of volatile or non-volatile storage devices or a combination thereof, including but not limited to: magnetic or optical disks, electrically erasable programmable read-only memories, erasable programmable read-only memories, static random access memories, read-only memories, magnetic memories, flash memories, programmable read-only memories.

[0303] The embodiment of the present application further provides a computer readable storage medium, wherein the storage medium stores a computer program, and the computer program is used to be executed by a processor to implement the information transmission method at the terminal device side or the information transmission method at the network device side. In some embodiments, the computer readable storage medium can include a ROM (Read-Only Memory), a RAM (Random-Access Memory), a SSD (Solid State Drives) or an optical disc, and the like. The RAM can include a ReRAM (Resistance Random Access Memory) and a DRAM (Dynamic Random Access Memory).

[0304] The embodiment of the present application further provides a chip, wherein the chip includes a programmable logic circuit and / or program instructions, and when the chip is running, the programmable logic circuit and / or program instructions are used to implement the information transmission method at the terminal device side or the information transmission method at the network device side.

[0305] The embodiment of the present application further provides a computer program product, wherein the computer program product includes computer instructions, the computer instructions are stored in a computer readable storage medium, and a processor reads and executes the computer instructions from the computer readable storage medium to implement the information transmission method at the terminal device side or the information transmission method at the network device side.

[0306] It should be understood that the "indication" mentioned in the embodiments of the present application can be direct indication, indirect indication or an indication representing an associated relationship. For example, A indicates B, which can mean that B can be obtained by A directly; or A indirectly indicates B, for example, A indicates C, and B can be obtained by C; or A and B have an associated relationship.

[0307] In the description of the embodiments of the present application, the term "corresponding" can mean a direct or indirect corresponding relationship between the two, can mean an associated relationship between the two, or can mean an indication and being indicated, configuration and being configured, and the like.

[0308] In some embodiments of the present application, "predefined" can be implemented by pre-storing corresponding codes, tables or other information indicating manners in devices (for example, including terminal devices and network devices), and the present application does not limit the specific implementation manners. For example, predefined can mean defined in a protocol.

[0309] In some embodiments of the present application, the "protocol" can refer to a standard protocol in the communication field, which can include BLE protocol, Wi-Fi protocol and related protocols applied in future communication systems, and the present application is not limited thereto.

[0310] "Multiple" mentioned herein refers to two or more. "And / or" describes the association relationship of associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents that the associated objects before and after it are in an "or" relationship.

[0311] "Greater than or equal to" mentioned herein can mean greater than or equal to, and "less than or equal to" can mean less than or equal to.

[0312] In addition, the step numbers described herein only exemplarily show a possible execution order between steps, and in some other embodiments, the above steps can also be executed in a sequence different from the number, such as two steps with different numbers are executed at the same time, or two steps with different numbers are executed in an order opposite to the illustration, and the embodiments of the present application are not limited thereto.

[0313] Those skilled in the art should realize that in one or more of the above examples, the functions described in the embodiments of the present application can be realized by hardware, software, firmware or any combination thereof. When realized by software, these functions can be stored in a computer readable medium or transmitted as one or more instructions or codes on a computer readable medium. The computer readable medium includes computer storage medium and communication medium, wherein the communication medium includes any medium facilitating the transmission of computer programs from one place to another. The storage medium can be any available medium accessible by a general or special purpose computer.

[0314] The above only describes exemplary embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A method of information transmission, characterized in that, The method is performed by a terminal device, and the method comprises: sending a wake-up signal, the wake-up signal being used to request a network device to send a first system message corresponding to at least one first beam or first signal.

2. The method of claim 1, wherein, The wake-up signal is also used to indicate the at least one first beam and / or the at least one first signal.

3. The method of claim 2, wherein, The wake-up signal comprises first indication information, the first indication information being used to indicate the at least one first beam and / or the at least one first signal.

4. The method of claim 2, wherein, The time-frequency resource occupied by the wake-up signal has an association relationship with the at least one first beam and / or the at least one first signal.

5. The method of claim 2, wherein, The time-frequency resource occupied by the wake-up signal has an association relationship with a first beam set and / or a first signal set, and the wake-up signal comprises second indication information, the second indication information being used to indicate the at least one first beam in the first beam set and / or the at least one first signal in the first signal set.

6. The method according to any one of claims 1 to 5, characterized in that, The method further comprises: receiving at least one second signal, the second signal having a quasi-co-location relationship with a first channel and / or a second channel, the first channel being used to carry second information, the second information being used to schedule the first system message, and the second channel being used to carry the first system message.

7. The method of claim 6, wherein, The at least one first beam and / or the at least one first signal is determined based on a measurement quality of the at least one second signal.

8. The method of claim 7, wherein, The terminal device determines a beam corresponding to N second signals satisfying a first condition among the at least one second signal as the at least one first beam; and / or The terminal device determines the at least one first signal based on the N second signals satisfying the first condition among the at least one second signal. Wherein, N is a positive integer.

9. The method of any one of claims 1 to 8, characterized in that: a transmission state of the first system message corresponding to the at least one beam is in a closed state; and / or a transmission state of the first system message associated with the at least one first signal is in a closed state.

10. The method of claim 9, wherein, In a first period, if the first system message is not detected on the first channel and / or the second channel associated with the second signal, the terminal device determines that the transmission state of the first system message on the beam corresponding to the second signal is in the closed state, and / or the terminal device determines that the transmission state of the first system message associated with the second signal is in the closed state.

11. The method of claim 9, wherein, The second signal comprises a third channel, the third channel being used to carry second indication information, the second indication information being used to indicate a transmission state of the first system message corresponding to at least one beam, and / or being used to indicate a transmission state of the first system message associated with the second signal, and / or being used to indicate a transmission state of the first system message associated with the first signal; or The demodulation reference signal (DMRS) sequence of the third channel is a first DMRS sequence, the first DMRS sequence is used for indicating the transmission state of the first system message corresponding to the at least one beam, and / or is used for indicating the transmission state of the first system message associated with the second signal, and / or is used for indicating the transmission state of the first system message associated with the first signal; or The second signal includes a first sequence, the first sequence is used for indicating the transmission state of the first system message corresponding to the at least one beam, and / or is used for indicating the transmission state of the first system message associated with the second signal, and / or is used for indicating the transmission state of the first system message associated with the first signal. The at least one beam is a beam of the first cell.

12. The method of claim 11, wherein, The second indication information is carried in a physical broadcast channel (PBCH).

13. The method of claim 11, wherein, If the first sequence belongs to a first sequence set, the first sequence is used for indicating that the transmission state of the first system message corresponding to the at least one beam is in a closed state, and / or is used for indicating that the transmission state of the first system message associated with the second signal is in a closed state, and / or is used for indicating that the transmission state of the first system message associated with the first signal is in a closed state; or If the first sequence belongs to a second sequence set, the first sequence is used for indicating that the transmission state of the first system message corresponding to the at least one beam is in an open state, and / or is used for indicating that the transmission state of the first system message associated with the second signal is in an open state, and / or is used for indicating that the transmission state of the first system message associated with the first signal is in an open state. There is no same sequence in the first sequence set and the second sequence set.

14. The method of claim 11, wherein, If the first DMRS sequence belongs to a first DMRS sequence set, the first DMRS sequence is used for indicating that the transmission state of the first system message corresponding to the at least one beam is in a closed state, and / or is used for indicating that the transmission state of the first system message associated with the second signal is in a closed state, and / or is used for indicating that the transmission state of the first system message associated with the first signal is in a closed state; or If the first DMRS sequence belongs to a second DMRS sequence set, the first DMRS sequence is used for indicating that the transmission state of the first system message corresponding to the at least one beam is in an open state, and / or is used for indicating that the transmission state of the first system message associated with the second signal is in an open state, and / or is used for indicating that the transmission state of the first system message associated with the first signal is in an open state. There is no same DMRS sequence in the first DMRS sequence set and the second DMRS sequence set.

15. The method according to any one of claims 1 to 14, characterized in that, The first system message is a system message of a first cell, The wake-up signal is predefined; or The wake-up signal is configured by a second signal; or The wake-up signal is configured by a second cell, and the second cell works in a normal state; or The wake-up signal is configured by radio resource control (RRC) signaling.

16. The method of claim 15, wherein, The second signal is used to indicate time-frequency resources occupied by the wake-up signal.

17. The method of claim 16, wherein, The second signal has a correlation relationship with time-frequency resources occupied by the wake-up signal.

18. The method of claim 17, wherein, The second signal has a correlation relationship with at least one of the following information: Time domain resources occupied by the wake-up signal; Frequency domain resources occupied by the wake-up signal; A set of time domain resources occupied by the wake-up signal; A set of frequency domain resources occupied by the wake-up signal.

19. The method of claim 15, wherein, The RRC signaling is used to configure dedicated time-frequency resources of the wake-up signal.

20. The method of claim 19, wherein, The dedicated time-frequency resources include at least one of the following: Physical random access channel (PRACH) resources; Physical uplink control channel (PUCCH) resources; Physical uplink shared channel (PUSCH) resources.

21. The method of claim 19 or 20, wherein, The RRC signaling is also used to indicate a transmission state of a first system message corresponding to at least one beam, and / or a transmission state of a first system message associated with at least one first signal, the at least one beam being a beam of a first cell, and the network device corresponding to the first cell.

22. The method according to any one of claims 15 to 21, characterized in that, The first cell operates in an energy-saving state.

23. The method according to any one of claims 6 to 22, characterized in that, The second signal is a synchronization signal block (SSB); or The second signal is a reference signal.

24. The method according to any one of claims 1 to 23, characterized in that, The first signal is an SSB.

25. An information transmission method, characterized by, The method is performed by a network device, and the method includes: Receiving a wake-up signal, the wake-up signal being used to request the network device to send a first system message corresponding to at least one first beam or first signal.

26. The method of claim 25, wherein, The wake-up signal is also used to indicate the at least one first beam and / or the at least one first signal.

27. The method of claim 26, wherein, The wake-up signal includes first indication information, the first indication information being used to indicate the at least one first beam and / or the at least one first signal.

28. The method of claim 26, wherein, Time-frequency resources occupied by the wake-up signal have a correlation relationship with the at least one first beam and / or the at least one first signal.

29. The method of claim 26, wherein, Time-frequency resources occupied by the wake-up signal have a correlation relationship with a set of first beams and / or a set of first signals, the wake-up signal including second indication information, the second indication information being used to indicate the at least one first beam in the set of first beams, and / or the at least one first signal in the set of first signals.

30. The method of any one of claims 25-26, wherein, The method further includes: Sending at least one second signal, the second signal having a quasi-co-location relationship with a first channel and / or a second channel, the first channel being used to carry second information, the second information being used to schedule the first system message, and the second channel being used to carry the first system message. The at least one first beam and / or the at least one first signal is determined based on a measurement quality of the at least one second signal.

31. The method of claim 30, wherein, N second signals corresponding to beams of the at least one second signal that satisfy a first condition are determined by a terminal device as the at least one first beam; and / or 32. The method of claim 31, wherein, The at least one first signal is determined by the terminal device based on N second signals in the at least one second signal that satisfy the first condition; wherein N is a positive integer.

33. The method of any one of claims 25 to 32, wherein The transmission state of the first system message corresponding to the at least one beam is in a closed state; and / or, ​ The transmission state of the first system message associated with the at least one first signal is in a closed state.

34. The method of claim 33, wherein, In the first period, if the first system message is not detected on the first channel and / or the second channel associated with the second signal, the terminal device determines that the transmission state of the first system message on the beam corresponding to the second signal is in the closed state, and / or the terminal device determines that the transmission state of the first system message associated with the second signal is in the closed state.

35. The method of claim 33, wherein, The second signal includes a third channel, the third channel is used to carry second indication information, the second indication information is used to indicate the transmission state of the first system message corresponding to at least one beam, and / or is used to indicate the transmission state of the first system message associated with the second signal, and / or is used to indicate the transmission state of the first system message associated with the first signal; or, The demodulation reference signal (DMRS) sequence of the third channel is a first DMRS sequence, the first DMRS sequence is used to indicate the transmission state of the first system message corresponding to at least one beam, and / or is used to indicate the transmission state of the first system message associated with the second signal, and / or is used to indicate the transmission state of the first system message associated with the first signal; or, The second signal includes a first sequence, the first sequence is used to indicate the transmission state of the first system message corresponding to at least one beam, and / or is used to indicate the transmission state of the first system message associated with the second signal, and / or is used to indicate the transmission state of the first system message associated with the first signal. The at least one beam is a beam of the first cell.

36. The method of claim 35, wherein, The second indication information is carried in a physical broadcast channel (PBCH).

37. The method of claim 35, wherein, If the first sequence belongs to a first sequence set, the first sequence is used to indicate that the transmission state of the first system message corresponding to at least one beam is in a closed state, and / or is used to indicate that the transmission state of the first system message associated with the second signal is in a closed state, and / or is used to indicate that the transmission state of the first system message associated with the first signal is in a closed state; or, If the first sequence belongs to a second sequence set, the first sequence is used to indicate that the transmission state of the first system message corresponding to at least one beam is in an open state, and / or is used to indicate that the transmission state of the first system message associated with the second signal is in an open state, and / or is used to indicate that the transmission state of the first system message associated with the first signal is in an open state. There is no same sequence in the first sequence set and the second sequence set.

38. The method of claim 35, wherein, If the first DMRS sequence belongs to a first DMRS sequence set, the first DMRS sequence is used to indicate that the transmission state of the first system message corresponding to at least one beam is in a closed state, and / or is used to indicate that the transmission state of the first system message associated with the second signal is in a closed state, and / or is used to indicate that the transmission state of the first system message associated with the first signal is in a closed state; or, if the first DMRS sequence belongs to a second DMRS sequence set, the first DMRS sequence is used to indicate that a transmission state of a first system message corresponding to the at least one beam is in an on state, and / or, is used to indicate that a transmission state of a first system message associated with the second signal is in an on state, and / or, is used to indicate that a transmission state of a first system message associated with the first signal is in an on state; wherein there is no same DMRS sequence in the first DMRS sequence set and the second DMRS sequence set.

39. The method of any one of claims 25 to 38, wherein, The first system message is a system message of a first cell, The wake-up signal is predefined; or, The wake-up signal is configured by a second signal; or, The wake-up signal is configured by a second cell, and the second cell operates in a normal state; or, The wake-up signal is configured by radio resource control (RRC) signaling.

40. The method of claim 39, wherein, The second signal is used to indicate time-frequency resources occupied by the wake-up signal.

41. The method of claim 40, wherein, The second signal has an association relationship with time-frequency resources occupied by the wake-up signal.

42. The method of claim 41, wherein, The second signal has an association relationship with at least one of the following information: Time domain resources occupied by the wake-up signal; Frequency domain resources occupied by the wake-up signal; A set of time domain resources occupied by the wake-up signal; A set of frequency domain resources occupied by the wake-up signal.

43. The method of claim 39, wherein, The RRC signaling is used to configure dedicated time-frequency resources of the wake-up signal.

44. The method of claim 43, wherein, The dedicated time-frequency resources include at least one of the following: Physical random access channel (PRACH) resources; Physical uplink control channel (PUCCH) resources; Physical uplink shared channel (PUSCH) resources.

45. The method of claim 43 or 44, wherein, The RRC signaling is also used to indicate a transmission state of a first system message corresponding to at least one beam, and / or, a transmission state of a first system message associated with at least one first signal, the at least one beam being a beam of a first cell, and the network device corresponding to the first cell.

46. The method of any one of claims 39 to 45, wherein, The first cell operates in an energy saving state.

47. The method of any one of claims 30 to 46, wherein, The second signal is a synchronization signal block (SSB); or, The second signal is a reference signal.

48. The method of any one of claims 25 to 47, wherein, The first signal is an SSB.

49. An information transmission apparatus, characterized by comprising: The apparatus includes: A sending module configured to send a wake-up signal, the wake-up signal being used to request a network device to send a first system message corresponding to at least one first beam or first signal.

50. An information transmission apparatus, characterized by comprising: The apparatus includes: A receiving module configured to receive a wake-up signal, the wake-up signal being used to request the network device to send a first system message corresponding to at least one first beam or first signal.

51. A communications device, characterized by The communication device includes a processor and a memory, the memory storing a computer program, and the processor executes the computer program to implement the method of any one of claims 1 to 24, or to implement the method of any one of claims 25 to 48.

52. A computer-readable storage medium, comprising: The storage medium stores a computer program, and the computer program is used to be executed by a processor to implement the method of any one of claims 1 to 24, or to implement the method of any one of claims 25 to 48.

53. A chip, comprising: The chip comprises programmable logic circuitry and / or program instructions, which when executed by the chip, implement the method of any one of claims 1 to 24, or implement the method of any one of claims 25 to 48.

54. A computer program product, characterised in that, The computer program product comprises computer instructions stored in a computer-readable storage medium, which are read and executed by a processor from the computer-readable storage medium to implement the method of any one of claims 1 to 24, or implement the method of any one of claims 25 to 48.

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