Information transmission method, network device and terminal device

Abstract

The present application relates to an information transmission method, a network device, a terminal device, a chip, a computer-readable storage medium, a computer program product, a computer program and a communication system. The method comprises: a network device of a first cell in an energy-saving state sending first information, wherein the first information is used for a terminal device to determine the first cell. The embodiments of the present application can help to improve a network energy-saving effect.

Description

Information transmission methods, network equipment and terminal equipment Technical Field

[0001] This application relates to the field of communications, and more specifically, to an information transmission method, network equipment, terminal equipment, chip, computer-readable storage medium, computer program product, computer program, and communication system. Background Technology

[0002] Network energy saving (NES) is crucial for environmental sustainability, reducing environmental impact (greenhouse gas emissions), and saving operating costs. With the development of communication technologies, the number of advanced services and applications requiring extremely high data rates is increasing, leading to denser networks that necessitate the use of more antennas, wider bandwidths, and more frequency bands. Therefore, new solutions are needed to improve network energy efficiency.

[0003] Summary of the Invention

[0004] This application provides an information transmission method, network device, terminal device, chip, computer-readable storage medium, computer program product, computer program, and communication system, which can improve network energy saving.

[0005] This application provides an information transmission method, including:

[0006] The network equipment in the first cell, which is in energy-saving mode, sends first information; wherein, the first information is used by the terminal equipment to identify the first cell.

[0007] This application provides an information transmission method, including:

[0008] The terminal device receives first information; wherein the first information comes from the network device of the first cell in energy-saving mode, and the first information is used by the terminal device to determine the first cell.

[0009] This application provides a network device, including:

[0010] The first communication module is used to send first information on a first cell in an energy-saving state; wherein the first information is used by the terminal device to determine the first cell.

[0011] This application provides a terminal device, including:

[0012] The second communication module is used to receive first information; wherein the first information comes from the network equipment of the first cell in energy-saving mode, and the first information is used by the terminal equipment to determine the first cell.

[0013] This application provides a network device, including a transceiver, a processor, and a memory. The memory stores a computer program, the transceiver communicates with other devices, and the processor calls and runs the computer program stored in the memory to enable the network device to perform the aforementioned information transmission method.

[0014] This application provides a terminal device, including a transceiver, a processor, and a memory. The memory stores a computer program, the transceiver communicates with other devices, and the processor calls and runs the computer program stored in the memory to enable the terminal device to perform the aforementioned information transmission method.

[0015] This application provides a chip for implementing the above-described information transmission method.

[0016] Specifically, the chip includes a processor for retrieving and running a computer program from memory, causing a device equipped with the chip to perform the aforementioned information transmission method.

[0017] This application provides a computer-readable storage medium for storing a computer program, which, when run by a device, causes the device to perform the aforementioned information transmission method.

[0018] This application provides a computer program product, including computer program instructions that cause a computer to execute the above-described information transmission method.

[0019] This application provides a computer program that, when run on a computer, causes the computer to perform the information transmission method described above.

[0020] This application provides a communication system, including a network device and a terminal device for performing the above-described information transmission method.

[0021] In this embodiment of the application, the network device of the first cell in the energy-saving state can send first information so that the terminal device can identify the first cell, thereby enabling the terminal device to identify, camp on and access the cell in the energy-saving state, laying the foundation for all cells to enter the energy-saving state, which is conducive to improving the network energy-saving effect. Attached Figure Description

[0022] Figure 1 is a schematic diagram of an application scenario according to an embodiment of this application.

[0023] Figure 2 is a schematic flowchart of an information transmission method according to an embodiment of this application.

[0024] Figure 3 is a schematic flowchart of an information transmission method according to another embodiment of this application.

[0025] Figure 4 is a schematic diagram of an application example of an information transmission method according to an embodiment of this application.

[0026] Figure 5 is a schematic block diagram of a network device according to an embodiment of this application.

[0027] Figure 6 is a schematic block diagram of a terminal device according to an embodiment of this application.

[0028] Figure 7 is a schematic block diagram of a communication device according to an embodiment of this application.

[0029] Figure 8 is a schematic block diagram of a chip according to an embodiment of this application.

[0030] Figure 9 is a schematic block diagram of a communication system according to an embodiment of this application. Detailed Implementation

[0031] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0032] The technical solutions of this application embodiment can be applied to various communication systems, such as: Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, evolution 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, 6th Generation (6G) system, or other communication systems, etc.

[0033] Traditional communication systems typically support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication but also, 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. The embodiments of this application can also be applied to these communication systems.

[0034] In one implementation, the communication system in this application embodiment can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) network deployment scenario.

[0035] In one embodiment, the communication system in this application can be applied to unlicensed spectrum, wherein the unlicensed spectrum can also be considered as shared spectrum; or, the communication system in this application can also be applied to licensed spectrum, wherein the licensed spectrum can also be considered as non-shared spectrum.

[0036] This application describes various embodiments in conjunction with network devices and terminal devices. The terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device, etc.

[0037] Terminal devices can be stations (STAION, ST) in WLANs, cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistant (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices, wearable devices, terminal devices in next-generation communication systems such as NR networks, or terminal devices in future evolved Public Land Mobile Network (PLMN) networks, etc.

[0038] In the embodiments of this application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships); and it can also be deployed in the air (such as airplanes, balloons and satellites).

[0039] In the embodiments of this application, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical care, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0040] By way of example and not limitation, in this embodiment, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0041] In the embodiments of this application, the network device can be a device for communicating with mobile devices, such as an access point (AP) in a WLAN, an evolved Node B (eNB or eNodeB) in LTE, a relay station or access point, or a vehicle-mounted device, a wearable device, a network device (gNB) in an NR network, or a network device in a future evolved PLMN network or an NTN network, etc.

[0042] By way of example and not limitation, in this embodiment, the network device may have mobility characteristics; for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low Earth orbit (LEO) satellite, a medium Earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station located on land, water, or other similar locations.

[0043] In this embodiment, the network device can provide services to a cell. The terminal device communicates with the network device through the transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell can be the cell corresponding to the network device (e.g., a base station). The cell can belong to a macro base station or to a base station corresponding to a small cell. The small cell can include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-speed data transmission services.

[0044] Figure 1 illustrates an exemplary communication system 100. The communication system includes a network device 110 and two terminal devices 120. In one embodiment, the communication system 100 may include multiple network devices 110, and the coverage area of ​​each network device 110 may include other numbers of terminal devices 120; this embodiment does not limit the scope of the present application.

[0045] In one embodiment, the communication system 100 may also include other network entities such as a Mobility Management Entity (MME) and an Access and Mobility Management Function (AMF), which are not limited in this application.

[0046] Network equipment can be further divided into access network equipment and core network equipment. That is, the wireless communication system also includes multiple core networks used to communicate with the access network equipment. Access network equipment can be evolved Node Bs (eNBs or e-NodeBs) in Long-Term Evolution (LTE), Next-Generation Radio (NR) (mobile communication system), or Authorized Auxiliary Access Long-Term Evolution (LAA-LTE) systems, such as macro base stations, micro base stations (also called "small base stations"), pico base stations, access points (APs), transmission points (TPs), or new generation Node Bs (gNodeBs).

[0047] It should be understood that devices with communication functions in the network / system of this application embodiment can be referred to as communication devices. Taking the communication system shown in Figure 1 as an example, the communication device may include network devices and terminal devices with communication functions. The network devices and terminal devices can be specific devices in this application embodiment, which will not be described in detail here. The communication device may also include other devices in the communication system, such as network controllers, mobility management entities, and other network entities. This application embodiment does not limit this.

[0048] It should be understood that the terms "system" and "network" are often used interchangeably in this document. The term "and / or" in this document merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0049] It should be understood that the term "instruction" mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0050] In the description of the embodiments of this application, the term "correspondence" may indicate that there is a direct or indirect correspondence between two things, or that there is an association between two things, or that there is a relationship of instruction and being instructed, configuration and being configured, etc.

[0051] To facilitate understanding of the technical solutions of the embodiments of this application, the relevant technologies of the embodiments of this application are described below. The following relevant technologies are optional solutions and can be combined with the technical solutions of the embodiments of this application in any way, and they all fall within the protection scope of the embodiments of this application.

[0052] (I) Network energy-saving technology

[0053] Network energy efficiency is crucial for environmental sustainability, reducing environmental impact (greenhouse gas emissions), and saving operating costs. As 5G becomes more widespread across industries and geographic regions, it is handling more advanced services and applications requiring extremely high data rates, such as Extended Reality (XR). Networks are becoming denser, using more antennas, wider bandwidths, and more frequency bands. The environmental impact of 5G needs to be controlled, necessitating the development of new solutions to improve network energy efficiency.

[0054] Energy consumption has become a key component of operators' operating expenses (OPEX). The majority of energy consumption comes from the wireless access network, particularly the active antenna unit (AAU), with data centers and fiber optic transmission accounting for a smaller share. Wireless access power consumption can be divided into two parts: a dynamic component, consumed only during data transmission / reception; and a static component, consumed continuously even when data transmission / reception is not in progress to maintain the necessary operation of the wireless access equipment.

[0055] Network power-saving technologies include those categorized by time, frequency, spatial, and power domains, and their impact on legacy UEs and specifications. Techniques in the time and frequency domains primarily aim to reduce power consumption in the dynamic portion by attempting to disable more symbols on one or more carriers to achieve base station micro-sleep, or even reduce power consumption in the static portion by increasing the intervals between consecutive active transmission / reception events to achieve base station light / deep sleep. Techniques in the spatial and power domains primarily aim to reduce power consumption in transceiver (TRX) links and PAs by attempting to disable more spatial elements and / or reduce transmit power / power spectral density, or improve power amplifier (PA) efficiency.

[0056] Currently, work projects addressing NR network power saving have introduced protocol-based network power saving technologies. These technologies are primarily used for Radio Resource Control (RRC) connection status, user-specific signals and channels, and low-load scenarios. These technologies include:

[0057] Operations for cross-band carrier aggregation (CA) and secondary cell (SCell) without synchronization signal block (SPB) in co-located cells for FR1;

[0058] This includes enhancements to the cell DTX / DRX mechanism, which aligns cell discontinuous transmission (DTX) / discontinuous reception (DRX) with UE DRX in RRC_CONNECTED mode.

[0059] Information exchange between nodes of the community's DTX / DRX;

[0060] Techniques in the spatial and power domains to achieve efficient adaptation of spatial elements and efficient adaptation of power offset values ​​between the Physical Downlink Shared Channel (PDSCH) and the Channel State Information-Reference Signal (CSI-RS);

[0061] Mechanism to prevent traditional UEs from camping in cells using Rel-18NES technology;

[0062] Enhanced connection establishment optimization (CHO) procedure;

[0063] Inter-node beam activation and enhanced paging capabilities confined to limited areas;

[0064] The corresponding core requirements for Radio Resource Management (RRM) / Radio Frequency (RF).

[0065] These technologies aim to improve the energy efficiency of 5G networks, particularly under connected and low-load conditions, by optimizing signal and channel usage, improving cell energy management, and reducing unnecessary energy consumption. Through these measures, operators can reduce operating costs while minimizing their environmental impact.

[0066] Further enhancements to network energy-saving technologies may include:

[0067] For UEs configured with carrier aggregation, the process and signaling method for activating the synchronization signal block of the auxiliary carrier on-demand in connected mode;

[0068] Define triggering methods, including sending wake-up signals via the UE's existing uplink signals / channels, via the returned cell on / off indication, or SCell activation / deactivation signaling;

[0069] On-demand SSB can be used for SCell time / frequency synchronization, L1 / L3 measurement, and SCell activation;

[0070] For UEs in idle or inactive mode, the on-demand process and signaling method for receiving System Information Block 1 (SIB1) includes the triggering method of uplink wake-up signal using existing signals / channels and the provision of wake-up signal configuration to the UE through information exchange between gNBs;

[0071] Supports adaptation for specified common signal / channel transmission, including: adaptation of SSB in the time domain (e.g., adaptive period), adaptation of PRACH in the time domain, adaptation of PRACH in the spatial domain (e.g., non-uniform PRACH resources for each SSB, and specifying them when beneficial), and adaptation for limiting paging timing in the time domain.

[0072] (II) Cell search process of NR system

[0073] The cell search process in the NR system is a crucial step for a UE to find and access a suitable serving cell in the network when it powers on or needs to re-establish a connection. The following is the NR cell search process:

[0074] Frequency tuning: The UE first adjusts to a specific frequency according to the synchronization grid of the specified frequency band, and attempts to detect the synchronization signal block SSB on that frequency grid.

[0075] PSS / SSS Detection: The UE attempts to detect the Primary Synchronization Signal (PSS) and Secondary Synchronization Signal (SSS) in the SSB. These signals have fixed positions in the time-frequency resources of an SSB. By detecting the PSS and SSS, the UE can obtain symbol synchronization and frame synchronization with the base station, and at the same time obtain the Physical Cell Identity (PCI) information.

[0076] PBCH (Physical Broadcast Channel) Decoding: After successful synchronization, the UE attempts to decode the Physical Broadcast Channel (PBCH) using information provided by the PSS and SSS. The PBCH carries the Master Information Block (MIB), which the UE obtains by decoding the PBCH. The MIB contains key parameters needed to decode other system information.

[0077] SIB1 Configuration Acquisition: Based on the Control Resource Set 0 (CORESET0) and Search Space 0 information in the MIB message, determine the relevant configuration of the Physical Downlink Control Channel (PDCCH) of System Information Block Type 1 (SIB1).

[0078] Search space blind detection of downlink control information (DCI): In the search space indicated by MIB, the UE blindly detects the DCI of format 1_0 (DCI1_0), which is the DCI used for scheduling SIB1.

[0079] Verification and Acquisition of DCI1_0: Once DCI1_0 is detected, the UE will use the System Information-Radio Network Temporary Identifier (SI-RNTI) to further verify and acquire the specific content of DCI1_0.

[0080] Detection and decoding of SIB1 messages on the Physical Downlink Shared Channel (PDSCH): Using the information provided in DCI1_0, the UE is able to find and decode the SIB1 messages carried on the Physical Downlink Shared Channel (PDSCH).

[0081] Decoding SIB1 and other SIB messages: SIB1 contains the key parameters needed to decode other System Information Blocks (SIBs). The UE will continue to decode other SIB messages to obtain complete network configuration and access information.

[0082] These steps together form the core of the 5G NR cell search and initial access process. After successfully completing these steps, the UE will be able to access the network and begin normal data transmission and communication.

[0083] In existing NES technology, for UEs in connected mode, network power saving technology is mainly applied to secondary cells (SCells) under CA configuration. For UEs in idle / inactive mode, network power saving technology is applied to cells undergoing cell reselection. In other words, the network-powered cell (called the NES cell) cannot operate independently of a normal cell. The UE needs to rely on a normal cell to meet mobility requirements or obtain relevant configuration information from the NES cell, such as uplink wake-up signal configuration information, to trigger the transmission of on-demand SSB or on-demand SIB1 on the NES cell. Therefore, because the NES cell cannot operate independently of a normal cell, each cell cannot independently achieve network power saving; in other words, existing NES technology cannot support all cells entering a power-saving state.

[0084] Figure 2 is a schematic flowchart of an information transmission method performed by a network device according to an embodiment of this application. This method can optionally be applied to the system shown in Figure 1, but is not limited thereto. The method includes:

[0085] S210, The network equipment of the first cell in the energy-saving state sends first information; wherein, the first information is used by the terminal equipment to determine the first cell.

[0086] Specifically, in this application embodiment, the cell may include two states: normal state and NES state (network energy saving state, also known as energy saving state).

[0087] For cells in normal operation, network devices can send synchronization signals, broadcast messages, and system messages. These messages can be used by the UE to identify the cell and obtain system messages, thereby enabling it to camp on or access the cell. For example, in a cell in normal operation, the network sends a cell-defining SSB. The PBCH in the SSB carries broadcast messages, and the resource information of the PDCCH used to schedule system message SIB1 can be obtained from the broadcast messages, thereby detecting the PDCCH reception of SIB1.

[0088] For cells in NES (Network Execution System) mode, network equipment can reduce the transmission of common signals, such as synchronization signals and system messages. For example, some system messages can be transmitted on-demand via the UE's demand. They are not transmitted when no UE is demanding them, thus saving energy.

[0089] In this embodiment, for a first cell in energy-saving / NES state (also referred to as an NES cell), the network device can send first information. For example, the network device sends the first information on the first cell in energy-saving state. The first information is used by the terminal device to determine the first cell; in other words, the first information is the necessary information for the terminal device to determine or identify the first cell. Based on this, the terminal device can determine or identify the first cell based on the first information, and thus choose to camp on or access the first cell.

[0090] The above method supports terminal devices in identifying, camping on, and accessing NES cells. That is, for terminal devices initially accessing the network, an NES cell can be used as an accessible cell, facilitating the independent operation of NES cells from their normal state. Each cell can operate independently, allowing each cell to switch independently between normal and NES states, improving the flexibility of network energy saving and further enhancing network energy efficiency.

[0091] Figure 3 is a schematic flowchart of an information transmission method performed by a terminal device according to an embodiment of this application. This method can optionally be applied to the system shown in Figure 1, but is not limited thereto. The method includes:

[0092] S310. The terminal device receives first information; wherein, the first information comes from the network device of the first cell in energy-saving state, and the first information is used by the terminal device to determine the first cell.

[0093] Optionally, the method may further include: the terminal device determining or identifying the first cell based on the first information.

[0094] For a specific example of the information transmission method executed by the terminal device in this embodiment, please refer to the relevant description of the network device, such as the base station, in the above-described information transmission method executed by the network device. For the sake of brevity, it will not be repeated here.

[0095] In some embodiments, the first information is used by the terminal device to send a first signal; the first signal is used to wake up the network device to send a first SIB, the first SIB including parameters required to access the first cell.

[0096] Wherein, the first information is used by the terminal device to send a first signal, that is, the terminal device needs to send the first signal based on the first information. Optionally, the above method may further include: the terminal device sending a first signal based on the first information. For example, the terminal device needs to send the first signal upon receiving the first information, and / or, the terminal device determines whether to send the first signal based on the first information, and / or, the terminal device determines how to send the first signal based on the first information.

[0097] The aforementioned first signal can also be called the Wake-Up Signal (WUS). Wake-up can also be understood as triggering. Correspondingly, the first SIB is the SIB that is sent by being woken up or triggered by the wake-up signal, i.e., the on-demand SIB. The on-demand SIB is not sent when there is no demand from the terminal device, thus further improving network energy efficiency.

[0098] Optionally, the first SIB may include any parameters related to accessing the first cell, such as parameters for decoding other SIBs, and / or network configuration and access information for accessing the first cell. For example, the first SIB may include SIB1, i.e., on-demand SIB1; SIB1 includes key parameters required for decoding other SIBs, and the terminal device can decode other SIBs based on SIB1 to obtain network configuration and access information for accessing the first cell.

[0099] For ease of understanding, Figure 4 shows a schematic diagram of an application example of an information transmission method according to an embodiment of this application. As shown in Figure 4, the information transmission method may include:

[0100] S41, The network device sends the first message;

[0101] S42. Upon receiving the first information, the terminal device sends a wake-up signal; this wake-up signal is used to trigger the transmission of SIB1 on the NES cell.

[0102] S43, Network device sends SIB1;

[0103] S44. The terminal device decodes other SIBs based on SIB1 to obtain complete network configuration and access information.

[0104] According to the above embodiments, the first information transmitted by the network device for the NES cell is the basis for the terminal device to send a wake-up signal. This allows the terminal device to identify the NES cell and then activate the on-demand SSB transmission of the NES cell by transmitting the wake-up signal, thereby further accessing the cell. This not only facilitates independent energy saving for each cell but also achieves better energy-saving performance by sending the first SSB in an on-demand manner.

[0105] In some embodiments, the first information includes one or more of the following information A to D.

[0106] Information A: Second signal.

[0107] The second signal is used for synchronization between the terminal device and the first cell; it can also be called a synchronization signal or discovery signal. Based on the second signal, the terminal device and the first cell network can then receive and transmit subsequent signals and channels.

[0108] For example, the second signal may include PSS and SSS, based on which the terminal device can obtain symbol synchronization and frame synchronization with the first cell network.

[0109] While NES cells can disable synchronization signals for complete energy saving, the absence of a synchronization signal presents several challenges. First, terminal devices cannot determine the potential presence of a cell within a frequency band and can only attempt to wake the NES cell's synchronization signal by blindly transmitting uplink wake-up signals (UL WUS), which is not energy-efficient for the terminal device. Second, the lack of a synchronization signal for synchronization with the network increases the complexity of network detection for the uplink wake-up signal, which consumes significant power. Furthermore, the inability of different terminal devices to synchronize their uplink wake-up signals leads to interference, causing network failure to receive the uplink wake-up signal. Therefore, in some embodiments, the first information includes a second signal, which improves both the energy-saving performance of the terminal device and the network, while ensuring accurate transmission of the uplink wake-up signal.

[0110] In one embodiment, the second signal is transmitted at a preset first frequency domain position. Correspondingly, the terminal device receives the first information, including: the terminal device receiving the first information at the preset first frequency domain position.

[0111] Optionally, for a frequency band, the second signal can be transmitted as a synchronization signal at a preset frequency domain position within that band, which can be denoted as the first frequency domain position. In other words, the first frequency domain position is set for cells in energy-saving mode to transmit the second signal. That is, the second signal transmitted at this first frequency domain position implicitly indicates that a cell is in energy-saving mode.

[0112] Optionally, if the terminal device does not detect a cell in normal condition in the current frequency band, it can detect a second signal at the first frequency domain location to determine whether there is a cell in energy-saving mode in that frequency band.

[0113] Optionally, the aforementioned frequency bands may be a portion of licensed frequency bands used by the same operator, or a portion of unlicensed frequency bands.

[0114] In one implementation, the second signal is transmitted on a synchronization raster. Correspondingly, the terminal device receives the first information, including receiving the first information on the synchronization raster.

[0115] For example, the aforementioned first frequency domain location can be the location of a synchronization grid, meaning the network device transmits the second signal on a specific synchronization grid. If the terminal device does not detect a cell in the current frequency band, it can detect the second signal on a specific synchronization grid within that frequency band.

[0116] For example, network devices can transmit a second signal on a synchronization grid, requiring terminal devices to search for the second signal on the synchronization grid. Optionally, the search method can be consistent with the method of searching for cells in normal state, that is, the synchronization grid where the synchronization signal of a cell in energy-saving state is located is the same as the synchronization grid where the synchronization signal of a cell in normal state is located. For example, if the first cell switches from normal state to energy-saving state, only the transmission of system messages is turned off during the switch, and the synchronization signal is still transmitted on the original synchronization grid. Optionally, the synchronization grid where the synchronization signal of a cell in energy-saving state is located can also be different from the synchronization grid where the synchronization signal of a cell in normal state is located, that is, it is not limited to whether they are the same.

[0117] In one implementation, the transmission period of the second signal is longer than that of the third signal; wherein the third signal is used for synchronization between the terminal device and the second cell in normal state. That is, the transmission period of the synchronization signal of the cell in energy-saving state can be longer than that of the synchronization signal of the cell in normal state. This reduces the number of synchronization signal transmissions in energy-saving state, thereby improving the energy-saving effect of the NES cell.

[0118] In one implementation, the second signal is transmitted using a beam scanning method. For example, the network device transmits a set of synchronization signals, where each synchronization signal corresponds to a different number and is used to correspond to a different beam.

[0119] Information B: Configuration information for the first signal.

[0120] For example, the configuration information of the first signal can be used to configure the transmission resources, related parameters, etc. of the first signal.

[0121] In some embodiments, the first information includes configuration information of the first signal. Here, the first signal is used to wake up the network device to send the first SIB, that is, the configuration information of the wake-up signal no longer depends on the cell in normal state to obtain, but is obtained through the cell in energy-saving state.

[0122] In one implementation, the configuration information of the first signal is carried via the PBCH.

[0123] Alternatively, the PBCH can be redesigned to carry configuration information of the first signal in a cell in an energy-saving state.

[0124] Optionally, the PBCH transmitted on a cell in energy-saving mode and the PBCH transmitted on a cell in normal mode have the same payload size, but the same bits or bit fields may have different meanings for cells in energy-saving mode and cells in normal mode. Here, the same bits or bit fields refer to the bits or bit fields being in the same position, such as the first bit, the second bit, the first bit field, the second bit field, etc.

[0125] In one implementation, the meaning of the second bit field can be determined based on the value of the first bit field in the PBCH. That is, the value of the first bit field in the PBCH is also used to determine the meaning of the second bit field.

[0126] For example, the value range of the first bit field corresponds to the meaning of the second bit field. Specifically, if the value of the first bit field corresponds to a first value range, the second bit field is used to indicate information for normal cells, and in this case, the second bit field represents the information represented by the value of that bit field in a normal cell. When the value of the first bit field corresponds to a second value range, the second bit field is used to indicate information for NES cells, and in this case, the second bit field represents the information represented by the value of that bit field in an NES cell.

[0127] For example, when the value of the first bit field corresponds to the second value range, the second bit field can indicate the configuration information of the UL WUS signal. Taking the SSB in an NR system as an example, the bit fields in the PBCH of the SSB can have the following characteristics: the first bit field can be the ssb-SubcarrierOffset information field, containing 5 bits, with a value range of 0-23 for normal cells, used to indicate the subcarrier offset between the SSB and the common RB; the second bit field can be the pdcch-ConfigSIB1 information field, used to indicate the configuration information of the PDCCH scheduling SIB1 transmission. When the value of the first bit field is at least one value between 23 and 31, it can indicate that the cell corresponding to the SSB is an NES cell. In this case, the second bit field is used to indicate the configuration information of the UL WUS signal.

[0128] It should be noted that the definitions of the first bit field and the second bit field in the above PBCH are merely exemplary and this application does not impose any limitations on them.

[0129] In one implementation, the configuration information of the first signal is carried through a second SIB.

[0130] Optionally, the configuration information of the first signal can be transmitted as a type of SIB information (second SIB) through the NES cell. The transmission method can be the same as that of SIB1, i.e., carried by the PDSCH.

[0131] Optionally, the second SIB has fewer bits than the first SIB, which includes the parameters required for accessing the first cell. For example, the first SIB may be SIB1.

[0132] Specifically, the second SIB, as a type of SIB information, can have fewer bits than the traditional SIB1 information, thus achieving network energy saving. For example, the configuration information of the first signal can be defined as SIB0 information, and the NES cell only sends SIB0 information, while transmitting on-demand SIB1 based on UL WUS, thereby achieving energy saving.

[0133] Information C: Status information of the first cell;

[0134] Here, the status information is used to indicate whether the corresponding cell is in normal or energy-saving state. Correspondingly, the status information of the first cell is used to indicate that the first cell is in energy-saving state. This status information can also be understood as cell type information, for example, indicating whether the corresponding cell is a normal cell or an NES cell.

[0135] The first information includes status information, which allows the terminal device to determine whether to obtain the first SIB by sending the first signal, and then access or camp on the first cell.

[0136] Optionally, the status information of the first cell can be indicated explicitly or implicitly.

[0137] In one implementation, the status information of the first cell is indicated by one or more of the following:

[0138] The frequency domain location of the second signal;

[0139] The sequence related to the second signal;

[0140] DMRS-related sequences of PBCH;

[0141] The third information carried by the PBCH;

[0142] Third SIB.

[0143] For example, the status information of the first cell can be implicitly indicated by the frequency domain location of the second signal (i.e., the synchronization signal). Specifically, the network device sends first information, which includes the synchronization signal, and this synchronization signal also implicitly contains the status information of the first cell. As explained above, the synchronization signal can be transmitted at a preset first frequency domain location. For a frequency band, the synchronization signal can be transmitted at a preset frequency domain location within that band, and the synchronization signal transmitted at this preset frequency domain location implicitly indicates that the corresponding cell is an NES cell.

[0144] For example, the state information of the first cell can be indicated by a sequence associated with a second signal (i.e., a synchronization signal), wherein the sequence associated with the second signal includes a first sequence used by the second signal, and / or a sequence in the initialization sequence group corresponding to the pseudo-random sequence used to generate the first sequence.

[0145] For example, the sequence used in the synchronization signal can include m-sequence or Gold sequence, etc. Different sequences correspond to different state information, that is, different sequences correspond to NES cells or normal cells.

[0146] For example, the pseudo-random sequence used to generate the synchronization signal sequence can be a sequence from different initialization sequence groups. Different initialization sequence groups correspond to different state information; that is, different initialization sequence groups correspond to NES cells or normal cells. For instance, the initialization sequence of the pseudo-random sequence corresponding to the synchronization signal sequence transmitted on a normal cell corresponds to at least one first parameter, and a first initialization sequence group is generated through at least one first parameter. The initialization sequence of the pseudo-random sequence corresponding to the synchronization signal sequence transmitted on an NES cell corresponds to at least one second parameter, and a second initialization sequence group is generated through at least one second parameter. The difference in the initialization sequence groups results in different sequences of synchronization signals transmitted on normal cells and NES cells, thus implicitly indicating whether the corresponding cell is an NES cell.

[0147] For example, the status information of the first cell can be indicated by the information carried by the PBCH. The bits in the PBCH payload can explicitly or implicitly indicate whether it is an NES cell. For instance, the range of values ​​for the first bit field in the PBCH in the aforementioned embodiment can indicate whether the corresponding cell is an NES cell.

[0148] For example, the state information of the first cell can be indicated by a DMRS-related sequence of the PBCH. This DMRS-related sequence of the PBCH includes a second sequence used by the DMRS, and / or a sequence from the initialization sequence group corresponding to the pseudo-random sequence used to generate the second sequence.

[0149] For example, the sequences used in PBCH DMRS may include m-sequences or Gold sequences, and different sequences correspond to different status information, that is, different sequences correspond to NES cells or normal cells.

[0150] For example, the pseudo-random sequence used to generate the PBCH DMRS sequence can be a sequence from different initialization sequence groups. Different initialization sequence groups correspond to different state information; that is, different initialization sequence groups correspond to NES cells or normal cells. For example, the initialization sequence of the pseudo-random sequence corresponding to the PBCH DMRS sequence transmitted on a normal cell corresponds to at least one first parameter, and a first initialization sequence group is generated through at least one first parameter. The initialization sequence of the pseudo-random sequence corresponding to the PBCH DMRS sequence transmitted on an NES cell corresponds to at least one second parameter, and a second initialization sequence group is generated through at least one second parameter. The difference in the initialization sequence group results in different PBCH DMRS sequences transmitted on normal cells and NES cells, thus implicitly indicating whether the corresponding cell is an NES cell.

[0151] For example, the status information of the first cell can be indicated by a third SIB. This third SIB can be another SIB different from the first SIB (e.g., SIB1). For example, the third SIB can be a second SIB with a smaller number of bits, such as SIB0, as described in the previous embodiments.

[0152] Information D: Second information; wherein, the second information is used to determine the access control status of the first cell.

[0153] Here, the access control status is used to indicate whether the corresponding cell is accessible or inaccessible. Optionally, the second information can be used in conjunction with other information to determine the access control status of the first cell, that is, the terminal device can determine the access control status of the first cell based on the second information, or based on the second information and other information.

[0154] For example, the second information includes cell barring parameters. The cell barring parameters are cellBarred information. In the MIB information of existing NR systems, cellBarred is used to indicate the access control status of the cell, and it, together with cellReservedForOperatorUse and cellReservedForOtherUse in SIB1, is used to determine the access control status of the cell.

[0155] Specifically, if cellBarred = "not barred", cellReservedForOperatorUse = "not reserved", and cellReservedForOtherUse = not "true", then the access control status of the cell is "not barred", indicating that the terminal device can use this cell as a candidate cell for cell selection or reselection.

[0156] If cellBarred = "barred" or cellReservedForOtherUse = "true", then the cell access control status cell status = "barred" indicates that the terminal device cannot use this cell as a candidate cell for cell selection or reselection.

[0157] If cellBarred = "not barred", cellReservedForOperatorUse = "reserved", and cellReservedForOtherUse = not "true", then terminal devices assigned to Access Identity 11 or 15 can use this cell as a candidate cell for cell selection or reselection, while terminal devices assigned to Access Identity 1, 2, 12 to 14 consider the cell to be in a "barred" state.

[0158] In this embodiment, since the transmission of SIB1 by the NES cell is an on-demand transmission based on a first signal (wake-up signal), the UE cannot know its corresponding cellBarred information before receiving the on-demand SIB1. If the NES cell receives the cellBarred information only after the UE sends UL WUS and then transmits on-demand SIB1, the cell may be an inaccessible cell for the UE, resulting in additional power overhead for both the network and the UE. Therefore, in some embodiments, the first information includes cellBarred information to avoid unnecessary power overhead. The cellBarred information is used to indicate whether a UE with one or more capabilities or types can access the first cell.

[0159] In one implementation, the second information is indicated by one or more of the following:

[0160] The frequency domain location of the second signal;

[0161] The sequence related to the second signal;

[0162] DMRS-related sequences of PBCH;

[0163] The fourth piece of information carried by the PBCH;

[0164] Fourth SIB.

[0165] For example, the second information can be indicated by the fourth information carried by the PBCH. For instance, the bits in the payload of the PBCH can explicitly or implicitly indicate the cellBarred information. For example, the cellBarred information can be indicated by the second bit field in the PBCH in the foregoing embodiments.

[0166] For example, the second information can be implicitly indicated by the frequency domain position of the second signal (i.e., the synchronization signal). For instance, a network device sends first information, which includes a synchronization signal that also implicitly includes cellBarred information. As previously explained, the synchronization signal can be sent at a preset first frequency domain position. For a frequency band, there can be two first frequency domain positions, and the cellBarred information is implicitly indicated by selecting one of the two positions.

[0167] For example, the second information of the first cell may be indicated by a sequence associated with the second signal (i.e., the synchronization signal), wherein the sequence associated with the second signal includes the first sequence used by the second signal, and / or a sequence in the initialization sequence group corresponding to the pseudo-random sequence used to generate the first sequence.

[0168] For example, the sequence used for the synchronization signal may include an m-sequence or a Gold sequence, etc. Different sequences correspond to different second information, such as different sequences corresponding to different values ​​of cellBarred information.

[0169] For example, the pseudo-random sequence used to generate the synchronization signal sequence can be derived from sequences in different initialization sequence groups. Different initialization sequence groups correspond to different second information, that is, different initialization sequence groups correspond to different values ​​of the cellBarred information.

[0170] For example, the second information of the first cell can be indicated by a DMRS-related sequence of the PBCH. The DMRS-related sequence of the PBCH includes the second sequence used by the DMRS, and / or a sequence from the initialization sequence group corresponding to the pseudo-random sequence used to generate the second sequence.

[0171] For example, the sequences used in PBCH DMRS can include m sequences or Gold sequences, and different sequences correspond to different secondary information, such as different sequences corresponding to different values ​​of cellBarred information.

[0172] For example, the pseudo-random sequence used to generate the PBCH DMRS sequence can be a sequence from different initialization sequence groups. For instance, different initialization sequence groups correspond to different values ​​of the cellBarred information.

[0173] For example, the second information can be indicated by a fourth SIB. This fourth SIB can be another SIB different from the first SIB (e.g., SIB1). For example, the fourth SIB can be a second SIB with a smaller number of bits in the foregoing embodiments, such as SIB0.

[0174] Optionally, the second information includes cell-barred parameters indicating all terminal types, or cell-barred parameters indicating each of at least one terminal type. For example, the cellBarred information included in the second information may include: cellBarred information for all UE capabilities or types, or cellBarred information for a specific UE capability or type, such as cellBarred information for multiple UE capabilities or types respectively.

[0175] As can be seen, this application embodiment provides an information transmission method for NES cells. By transmitting first information on the NES cell, the UE can identify the NES cell and determine whether the NES cell can be accessed. Optionally, the first information may include resource configuration information for transmitting UL WUS, thereby waking up the NES cell's on-demand SIB1 transmission through UL WUS, enabling the UE to obtain SIB1 information and camp on or access the cell. This realizes the UE's identification, camping, and access to the NES cell, thereby improving the overall network energy saving effect.

[0176] Figure 5 is a schematic block diagram of a network device 500 according to an embodiment of the present application. The network device 500 may include:

[0177] The first communication module 510 is used to send first information on a first cell in an energy-saving state; wherein the first information is used by the terminal device to determine the first cell.

[0178] In some embodiments, the first information is used by the terminal device to send a first signal; the first signal is used to wake up the network device to send a first SIB, the first SIB including parameters required to access the first cell.

[0179] In some embodiments, the first information includes one or more of the following:

[0180] The second signal; wherein, the second signal is used for the terminal device to synchronize with the first cell;

[0181] Configuration information for the first signal; wherein, the first signal is used to wake up the network device to send the first SIB;

[0182] Status information of the first cell;

[0183] Second information; wherein, the second information is used to determine the access control status of the first cell.

[0184] In some embodiments, the second signal is transmitted at a preset first frequency domain position.

[0185] In some embodiments, the second signal is transmitted on a synchronization grid.

[0186] In some embodiments, the transmission period of the second signal is longer than that of the third signal; wherein the third signal is used for the terminal device to synchronize with the second cell in a normal state.

[0187] In some embodiments, configuration information for the first signal is carried via the PBCH or the second SIB.

[0188] In some embodiments, the number of bits in the second SIB is less than the number of bits in the first SIB, and the first SIB includes parameters required for accessing the first cell.

[0189] In some embodiments, the status information of the first cell is indicated by one or more of the following:

[0190] The frequency domain location of the second signal;

[0191] The sequence related to the second signal;

[0192] DMRS-related sequences of PBCH;

[0193] The third information carried by the PBCH;

[0194] Third SIB.

[0195] In some embodiments, the second information includes cell prohibition parameters.

[0196] In some embodiments, the second information includes cell prohibition parameters indicated for all terminal types, or cell prohibition parameters indicated for each of at least one terminal type.

[0197] In some embodiments, the second information is indicated by one or more of the following:

[0198] The frequency domain location of the second signal;

[0199] The sequence related to the second signal;

[0200] DMRS-related sequences of PBCH;

[0201] The fourth piece of information carried by the PBCH;

[0202] Fourth SIB.

[0203] In some embodiments, the sequence associated with the second signal includes the first sequence used by the second signal, and / or a sequence in the initialization sequence group corresponding to the pseudo-random sequence used to generate the first sequence.

[0204] In some embodiments, the DMRS-related sequence of PBCH includes the second sequence used by DMRS, and / or the sequence in the initialization sequence group corresponding to the pseudo-random sequence used to generate the second sequence.

[0205] The network device 500 of this application embodiment can realize the corresponding functions of the network device in the foregoing method embodiments. The processes, functions, implementation methods, and beneficial effects of each module (sub-module, unit, or component, etc.) in the network device 500 can be found in the corresponding descriptions in the above method embodiments, and will not be repeated here. It should be noted that the functions described for each module (sub-module, unit, or component, etc.) in the network device 500 of the application embodiment can be implemented by different modules (sub-modules, units, or components, etc.) or by the same module (sub-module, unit, or component, etc.).

[0206] Figure 6 is a schematic block diagram of a terminal device 600 according to an embodiment of the present application. The terminal device 600 may include:

[0207] The second communication module 610 is used to receive first information; wherein the first information comes from the network equipment of the first cell in an energy-saving state, and the first information is used by the terminal equipment to determine the first cell.

[0208] In some embodiments, the first information is used by the terminal device to send a first signal; the first signal is used to wake up the network device to send a first SIB, the first SIB including parameters required to access the first cell.

[0209] In some embodiments, the first information includes one or more of the following:

[0210] The second signal; wherein, the second signal is used for the terminal device to synchronize with the first cell;

[0211] Configuration information for the first signal; wherein, the first signal is used to wake up the network device to send the first SIB;

[0212] Status information of the first cell;

[0213] Second information; wherein, the second information is used to determine the access control status of the first cell.

[0214] In some embodiments, the second communication module 610 is further configured to:

[0215] The first information is received at a preset first frequency domain position.

[0216] In some embodiments, the second communication module 610 is further configured to:

[0217] Receive the first information on the synchronization grid.

[0218] In some embodiments, the transmission period of the second signal is longer than that of the third signal; wherein the third signal is used for the terminal device to synchronize with the second cell in a normal state.

[0219] In some embodiments, configuration information for the first signal is carried via the PBCH or the second SIB.

[0220] In some embodiments, the number of bits in the second SIB is less than the number of bits in the first SIB, and the first SIB includes parameters required for accessing the first cell.

[0221] In some embodiments, the status information of the first cell is indicated by one or more of the following:

[0222] The frequency domain location of the second signal;

[0223] The sequence related to the second signal;

[0224] DMRS-related sequences of PBCH;

[0225] The third information carried by the PBCH;

[0226] Third SIB.

[0227] In some embodiments, the second information includes cell prohibition parameters.

[0228] In some embodiments, the second information includes cell prohibition parameters indicated for all terminal types, or cell prohibition parameters indicated for each of at least one terminal type.

[0229] In some embodiments, the second information is indicated by one or more of the following:

[0230] The frequency domain location of the second signal;

[0231] The sequence related to the second signal;

[0232] DMRS-related sequences of PBCH;

[0233] The fourth piece of information carried by the PBCH;

[0234] Fourth SIB.

[0235] In some embodiments, the sequence associated with the second signal includes the first sequence used by the second signal, and / or a sequence in the initialization sequence group corresponding to the pseudo-random sequence used to generate the first sequence.

[0236] In some embodiments, the DMRS-related sequence of PBCH includes the second sequence used by DMRS, and / or the sequence in the initialization sequence group corresponding to the pseudo-random sequence used to generate the second sequence.

[0237] The terminal device 600 of this application embodiment can implement the corresponding functions of the terminal device in the foregoing method embodiments. The processes, functions, implementation methods, and beneficial effects of each module (sub-module, unit, or component, etc.) in the terminal device 600 can be found in the corresponding descriptions in the above method embodiments, and will not be repeated here. It should be noted that the functions described for each module (sub-module, unit, or component, etc.) in the terminal device 600 of the application embodiment can be implemented by different modules (sub-modules, units, or components, etc.) or by the same module (sub-module, unit, or component, etc.).

[0238] Figure 7 is a schematic structural diagram of a communication device 700 according to an embodiment of this application. The communication device 700 includes a processor 710, which can call and run computer programs from memory to enable the communication device 700 to implement the methods in the embodiments of this application.

[0239] In one embodiment, the communication device 700 may further include a memory 720. The processor 710 can retrieve and run computer programs from the memory 720 to enable the communication device 700 to implement the methods described in the embodiments of this application.

[0240] The memory 720 can be a separate device independent of the processor 710, or it can be integrated into the processor 710.

[0241] In one embodiment, the communication device 700 may further include a transceiver 730, which the processor 710 may control to communicate with other devices. Specifically, it may send information or data to other devices or receive information or data sent by other devices.

[0242] The transceiver 730 may include a transmitter and a receiver. The transceiver 730 may further include antennas, and the number of antennas may be one or more.

[0243] In one embodiment, the communication device 700 may be a network device in the embodiments of this application, and the communication device 700 may implement the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0244] In one embodiment, the communication device 700 may be a terminal device in the embodiments of this application, and the communication device 700 may implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0245] Figure 8 is a schematic structural diagram of a chip 800 according to an embodiment of this application. The chip 800 includes a processor 810, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0246] In one embodiment, chip 800 may further include memory 820. Processor 810 can retrieve and run computer programs from memory 820 to implement the methods executed by the terminal device or network device in this embodiment.

[0247] The memory 820 can be a separate device independent of the processor 810, or it can be integrated into the processor 810.

[0248] In one embodiment, the chip 800 may further include an input interface 830. The processor 810 can control the input interface 830 to communicate with other devices or chips; specifically, it can acquire information or data sent by other devices or chips.

[0249] In one embodiment, the chip 800 may further include an output interface 840. The processor 810 can control the output interface 840 to communicate with other devices or chips; specifically, it can output information or data to other devices or chips.

[0250] In one implementation, the chip can be applied to the network device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0251] In one embodiment, the chip can be applied to the terminal device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0252] The chips used in network equipment and terminal equipment can be the same chip or different chips.

[0253] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0254] The processors mentioned above can be general-purpose processors, digital signal processors (DSPs), field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), or other programmable logic devices, transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processors mentioned above can be microprocessors or any conventional processor.

[0255] The aforementioned memory can be volatile memory or non-volatile memory, or a combination of both. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM).

[0256] It should be understood that the above-described memory is exemplary and not a limiting description. For example, the memory in the embodiments of this application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DR RAM), etc. That is to say, the memory in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0257] Figure 9 is a schematic block diagram of a communication system 900 according to an embodiment of this application. The communication system 900 includes a network device 910 and a terminal device 920.

[0258] The network equipment in the first cell, which is in energy-saving mode, sends first information; wherein, the first information is used by the terminal equipment to identify the first cell.

[0259] The terminal device receives first information; wherein the first information comes from the network device of the first cell in energy-saving mode, and the first information is used by the terminal device to determine the first cell.

[0260] The network device 910 can be used to implement the corresponding functions implemented by the network device in the above method, and the terminal device 920 can be used to implement the corresponding functions implemented by the terminal device in the above method. For the sake of brevity, further details are omitted here.

[0261] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. This computer program product includes one or more computer instructions. When these computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state drives (SSDs)).

[0262] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0263] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0264] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An information transmission method, comprising: The network equipment in the first cell, which is in energy-saving mode, sends first information; wherein, the first information is used by the terminal equipment to identify the first cell.

2. The method according to claim 1, wherein, The first information is used by the terminal device to send a first signal; the first signal is used to wake up the network device to send a first system information block (SIB), the first SIB including parameters required to access the first cell.

3. The method according to claim 1 or 2, wherein, The first information includes one or more of the following: The second signal; wherein the second signal is used for the terminal device to synchronize with the first cell; Configuration information of the first signal; wherein, the first signal is used to wake up the network device to send the first SIB; Status information of the first cell; Second information; wherein, the second information is used to determine the access control status of the first cell.

4. The method according to claim 3, wherein, The second signal is transmitted at a preset first frequency domain position.

5. The method according to claim 3 or 4, wherein, The second signal is transmitted on the synchronization grid.

6. The method according to any one of claims 3-5, wherein, The transmission period of the second signal is longer than that of the third signal; wherein the third signal is used for the terminal device to synchronize with the second cell in a normal state.

7. The method according to any one of claims 3-6, wherein, The configuration information of the first signal is carried through the Physical Broadcast Channel (PBCH) or the second SIB.

8. The method according to claim 7, wherein, The second SIB has fewer bits than the first SIB, which includes the parameters required for accessing the first cell.

9. The method according to any one of claims 3-8, wherein, The status information of the first cell is indicated by one or more of the following: The frequency domain position of the second signal; The sequence associated with the second signal; The sequence related to the DMRS demodulation reference signal of PBCH; The third information carried by the PBCH; Third SIB.

10. The method according to any one of claims 3-9, wherein, The second information includes cell prohibition parameters.

11. The method according to claim 10, wherein, The second information includes cell prohibition parameters indicated for all terminal types, or cell prohibition parameters indicated for each of at least one terminal type.

12. The method according to any one of claims 3-11, wherein, The second information is indicated by one or more of the following: The frequency domain position of the second signal; The sequence associated with the second signal; DMRS-related sequences of PBCH; The fourth piece of information carried by the PBCH; Fourth SIB.

13. The method according to claim 9 or 12, wherein, The sequence associated with the second signal includes the first sequence used by the second signal, and / or a sequence in the initialization sequence group corresponding to the pseudo-random sequence used to generate the first sequence.

14. The method according to any one of claims 9, 12, and 13, wherein, The DMRS-related sequence of the PBCH includes the second sequence used by the DMRS, and / or the sequence in the initialization sequence group corresponding to the pseudo-random sequence used to generate the second sequence.

15. An information transmission method, comprising: The terminal device receives first information; wherein the first information comes from the network device of the first cell in an energy-saving state, and the first information is used by the terminal device to determine the first cell.

16. The method according to claim 15, wherein, The first information is used by the terminal device to send a first signal; the first signal is used to wake up the network device to send a first SIB, the first SIB including parameters required to access the first cell.

17. The method according to claim 15 or 16, wherein, The first information includes one or more of the following: The second signal; wherein the second signal is used for the terminal device to synchronize with the first cell; Configuration information of the first signal; wherein, the first signal is used to wake up the network device to send the first SIB; Status information of the first cell; Second information; wherein, the second information is used to determine the access control status of the first cell.

18. The method according to claim 17, wherein, The terminal device receives first information, including: The terminal device receives the first information at a preset first frequency domain position.

19. The method according to claim 17 or 18, wherein, The terminal device receives first information, including: The terminal device receives the first information on the synchronization grid.

20. The method according to any one of claims 17-19, wherein, The transmission period of the second signal is longer than that of the third signal; wherein the third signal is used for the terminal device to synchronize with the second cell in a normal state.

21. The method according to any one of claims 17-20, wherein, The configuration information of the first signal is carried through the PBCH or the second SIB.

22. The method according to claim 21, wherein, The second SIB has fewer bits than the first SIB, which includes the parameters required for accessing the first cell.

23. The method according to any one of claims 17-22, wherein, The status information of the first cell is indicated by one or more of the following: The frequency domain position of the second signal; The sequence associated with the second signal; DMRS-related sequences of PBCH; The third information carried by the PBCH; Third SIB.

24. The method according to any one of claims 17-23, wherein, The second information includes cell prohibition parameters.

25. The method according to claim 24, wherein, The second information includes cell prohibition parameters indicated for all terminal types, or cell prohibition parameters indicated for each of at least one terminal type.

26. The method according to any one of claims 17-25, wherein, The second information is indicated by one or more of the following: The frequency domain position of the second signal; The sequence associated with the second signal; DMRS-related sequences of PBCH; The fourth piece of information carried by the PBCH; Fourth SIB.

27. The method according to claim 23 or 26, wherein, The sequence associated with the second signal includes the first sequence used by the second signal, and / or a sequence in the initialization sequence group corresponding to the pseudo-random sequence used to generate the first sequence.

28. The method according to any one of claims 23, 26 and 27, wherein, The DMRS-related sequence of the PBCH includes the second sequence used by the DMRS, and / or the sequence in the initialization sequence group corresponding to the pseudo-random sequence used to generate the second sequence.

29. A network device, comprising: A first communication module is used to send first information on a first cell in an energy-saving state; wherein the first information is used by a terminal device to determine the first cell.

30. The network device according to claim 29, wherein, The first information is used by the terminal device to send a first signal; the first signal is used to wake up the network device to send a first SIB, the first SIB including parameters required to access the first cell.

31. The network device according to claim 29 or 30, wherein, The first information includes one or more of the following: The second signal; wherein the second signal is used for the terminal device to synchronize with the first cell; Configuration information of the first signal; wherein, the first signal is used to wake up the network device to send the first SIB; Status information of the first cell; Second information; wherein, the second information is used to determine the access control status of the first cell.

32. The network device according to claim 31, wherein, The second signal is transmitted at a preset first frequency domain position.

33. The network device according to claim 31 or 32, wherein, The second signal is transmitted on the synchronization grid.

34. The network device according to any one of claims 31-33, wherein, The transmission period of the second signal is longer than that of the third signal; wherein the third signal is used for the terminal device to synchronize with the second cell in a normal state.

35. The network device according to any one of claims 31-34, wherein, The configuration information of the first signal is carried through the PBCH or the second SIB.

36. The network device according to claim 35, wherein, The second SIB has fewer bits than the first SIB, which includes the parameters required for accessing the first cell.

37. The network device according to any one of claims 31-36, wherein, The status information of the first cell is indicated by one or more of the following: The frequency domain position of the second signal; The sequence associated with the second signal; DMRS-related sequences of PBCH; The third information carried by the PBCH; Third SIB.

38. The network device according to any one of claims 31-37, wherein, The second information includes cell prohibition parameters.

39. The network device according to claim 38, wherein, The second information includes cell prohibition parameters indicated for all terminal types, or cell prohibition parameters indicated for each of at least one terminal type.

40. The network device according to any one of claims 31-39, wherein, The second information is indicated by one or more of the following: The frequency domain position of the second signal; The sequence associated with the second signal; DMRS-related sequences of PBCH; The fourth piece of information carried by the PBCH; Fourth SIB.

41. The network device according to claim 37 or 40, wherein, The sequence associated with the second signal includes the first sequence used by the second signal, and / or a sequence in the initialization sequence group corresponding to the pseudo-random sequence used to generate the first sequence.

42. The network device according to any one of claims 37, 40 and 41, wherein, The DMRS-related sequence of the PBCH includes the second sequence used by the DMRS, and / or the sequence in the initialization sequence group corresponding to the pseudo-random sequence used to generate the second sequence.

43. A terminal device, comprising: The second communication module is used to receive first information; wherein the first information comes from the network device of the first cell in an energy-saving state, and the first information is used by the terminal device to determine the first cell.

44. The terminal device according to claim 43, wherein, The first information is used by the terminal device to send a first signal; the first signal is used to wake up the network device to send a first SIB, the first SIB including parameters required to access the first cell.

45. The terminal device according to claim 43 or 44, wherein, The first information includes one or more of the following: The second signal; wherein the second signal is used for the terminal device to synchronize with the first cell; Configuration information of the first signal; wherein, the first signal is used to wake up the network device to send the first SIB; Status information of the first cell; Second information; wherein, the second information is used to determine the access control status of the first cell.

46. ​​The terminal device according to claim 45, wherein, The second communication module is also used for: The first information is received at a preset first frequency domain position.

47. The terminal device according to claim 45 or 46, wherein, The second communication module is also used for: The first information is received on the synchronization grid.

48. The terminal device according to any one of claims 45-47, wherein, The transmission period of the second signal is longer than that of the third signal; wherein the third signal is used for the terminal device to synchronize with the second cell in a normal state.

49. The terminal device according to any one of claims 45-48, wherein, The configuration information of the first signal is carried through the PBCH or the second SIB.

50. The terminal device according to claim 49, wherein, The second SIB has fewer bits than the first SIB, which includes the parameters required for accessing the first cell.

51. The terminal device according to any one of claims 45-50, wherein, The status information of the first cell is indicated by one or more of the following: The frequency domain position of the second signal; The sequence associated with the second signal; DMRS-related sequences of PBCH; The third information carried by the PBCH; Third SIB.

52. The terminal device according to any one of claims 45-51, wherein, The second information includes cell prohibition parameters.

53. The terminal device according to claim 52, wherein, The second information includes cell prohibition parameters indicated for all terminal types, or cell prohibition parameters indicated for each of at least one terminal type.

54. The terminal device according to any one of claims 45-53, wherein, The second information is indicated by one or more of the following: The frequency domain position of the second signal; The sequence associated with the second signal; DMRS-related sequences of PBCH; The fourth piece of information carried by the PBCH; Fourth SIB.

55. The terminal device according to claim 51 or 54, wherein, The sequence associated with the second signal includes the first sequence used by the second signal, and / or a sequence in the initialization sequence group corresponding to the pseudo-random sequence used to generate the first sequence.

56. The terminal device according to any one of claims 51, 54, and 55, wherein, The DMRS-related sequence of the PBCH includes the second sequence used by the DMRS, and / or the sequence in the initialization sequence group corresponding to the pseudo-random sequence used to generate the second sequence.

57. A network device, comprising: A transceiver, a processor, and a memory, wherein the memory is used to store a computer program, the transceiver is used to communicate with other devices, and the processor is used to invoke and run the computer program stored in the memory to cause the network device to perform the method as described in any one of claims 1 to 14.

58. A terminal device, comprising: A transceiver, a processor, and a memory, wherein the memory is used to store a computer program, the transceiver is used to communicate with other devices, and the processor is used to invoke and run the computer program stored in the memory to cause the terminal device to perform the method as described in any one of claims 15 to 28.

59. A chip, comprising: A processor for retrieving and running a computer program from memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 1 to 14.

60. A chip, comprising: A processor for retrieving and running a computer program from memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 15 to 28.

61. A computer-readable storage medium for storing a computer program that, when run by a device, causes the device to perform the method as claimed in any one of claims 1 to 14.

62. A computer-readable storage medium for storing a computer program that, when run by a device, causes the device to perform the method as described in any one of claims 15 to 28.

63. A computer program product comprising computer program instructions that cause a computer to perform the method as described in any one of claims 1 to 14.

64. A computer program product comprising computer program instructions that cause a computer to perform the method as described in any one of claims 15 to 28.

65. A computer program that causes a computer to perform the method as claimed in any one of claims 1 to 14.

66. A computer program that causes a computer to perform the method as described in any one of claims 15 to 28.

67. A communication system, comprising: A network device for performing the method as described in any one of claims 1 to 14; A terminal device for performing the method as described in any one of claims 15 to 28.

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