Communication method and device

Abstract

Provided are a communication method and device. The method comprises: in a first process, a first terminal device executing a first operation, the first process comprising cell selection or cell reselection, and the first operation comprising one or more of the following: determining or adjusting the frequency point priority of a first cell to be high; determining or adjusting the frequency point priority of the first cell to be higher than the frequency point priority of a second cell; releasing the restriction of prohibiting access to the first cell; determining that the time in which access to the first cell is prohibited reaches a preset time; reselecting to the first cell; requesting the first cell to send SIB1; sending a UL WUS message; and camping on the second cell, wherein the first cell does not send the SIB1, or sends the SIB1 on the basis of a request; and / or the second cell sends the SIB1, or periodically sends the SIB1.

Description

Communication method and device Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to communication methods and devices. Background Art

[0002] In a network energy saving (NES) scenario, how to support terminal devices to select or reselect to an NES cell as quickly as possible is a problem that needs to be solved. Summary of the Invention

[0003] The present application provides a communication method and device. The following introduces various aspects involved in the present application.

[0004] In a first aspect, a communication method is provided, including: in a first process, a first terminal device performs a first operation, the first process includes cell selection or cell reselection, and the first operation includes one or more of the following: determining or adjusting the frequency priority of the first cell to be high; determining or adjusting the frequency priority of the first cell to be higher than the frequency priority of the second cell; lifting the restriction on prohibiting access to the first cell; determining that the time for prohibiting access to the first cell reaches a preset time; reselecting to the first cell; requesting the first cell to send SIB1; sending a UL WUS message; staying in the second cell; wherein, the first cell does not send SIB1, or, sends SIB1 based on a request; and / or, the second cell sends SIB1, or, periodically sends SIB1.

[0005] According to a second aspect, a communication method is provided, including: a network device sends a first indication message to a first terminal device; wherein the first indication message is used to trigger the first terminal device to perform a first operation in a first process, or the first indication message is used to instruct the first terminal device to perform the first operation; wherein the first process includes cell selection or cell reselection; wherein the first operation includes one or more of the following: determining or adjusting the frequency priority of the first cell to be high; determining or adjusting the frequency priority of the first cell to be higher than the frequency priority of the second cell; lifting the restriction on prohibiting access to the first cell; determining that the time for prohibiting access to the first cell reaches a preset time; reselecting to the first cell; requesting the first cell to send SIB1; sending a UL WUS message; and staying in the second cell; wherein the first cell does not send SIB1, or sends SIB1 based on a request; and / or the second cell sends SIB1, or periodically sends SIB1.

[0006] According to a third aspect, a communication device is provided, which is a first terminal device, and the communication device includes: a processing module for performing a first operation in a first process, the first process including cell selection or cell reselection, and the first operation including one or more of the following: determining or adjusting the frequency priority of the first cell to be high; determining or adjusting the frequency priority of the first cell to be higher than the frequency priority of the second cell; lifting the restriction on prohibiting access to the first cell; determining that the time for prohibiting access to the first cell reaches a preset time; reselecting to the first cell; requesting the first cell to send SIB1; sending a UL WUS message; and staying in the second cell; wherein the first cell does not send SIB1, or sends SIB1 based on a request; and / or the second cell sends SIB1, or periodically sends SIB1.

[0007] In a fourth aspect, a communication device is provided, which is a network device, and the communication device includes: a communication module for sending a first indication information to a first terminal device; wherein the first indication information is used to trigger the first terminal device to perform a first operation in a first process, or the first indication information is used to instruct the first terminal device to perform the first operation; wherein the first process includes cell selection or cell reselection; wherein the first operation includes one or more of the following: determining or adjusting the frequency priority of the first cell to be high; determining or adjusting the frequency priority of the first cell to be higher than the frequency priority of the second cell; lifting the restriction on prohibiting access to the first cell; determining that the time for prohibiting access to the first cell reaches a preset time; reselecting to the first cell; requesting the first cell to send SIB1; sending a UL WUS message; staying in the second cell; wherein the first cell does not send SIB1, or, sends SIB1 based on a request; and / or, the second cell sends SIB1, or, periodically sends SIB1.

[0008] In a fifth aspect, a communication device is provided, comprising a processor and a memory, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory so that the terminal device executes the method described in any one of the first to second aspects.

[0009] In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program is used to execute the method described in any one of the first to second aspects.

[0010] In the seventh aspect, an embodiment of the present application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to execute the method described in any one of the first to second aspects.

[0011] In an eighth aspect, an embodiment of the present application provides a chip comprising a memory and a processor, wherein the processor can call and run a computer program from the memory to implement the method described in any one of the first to second aspects.

[0012] During the cell selection or reselection process, the terminal device of an embodiment of the present application may perform a first operation. The first operation may include, for example, determining or adjusting the frequency priority of the cell, lifting the restriction prohibiting access to the first cell, etc. Based on the first operation, the terminal device is facilitated to quickly select or reselect to the first cell (NES cell). BRIEF DESCRIPTION OF THE DRAWINGS

[0013] FIG1 is a wireless communication system used in an embodiment of the present application.

[0014] FIG2 is a flow chart of a communication method according to an embodiment of the present application.

[0015] FIG3 is another flow chart of the communication method provided in an embodiment of the present application.

[0016] FIG4 is a schematic structural diagram of a communication device provided in one embodiment of the present application.

[0017] FIG5 is a schematic structural diagram of a communication device provided in another embodiment of the present application.

[0018] FIG6 is a schematic structural diagram of a device applicable to an embodiment of the present application. DETAILED DESCRIPTION

[0019] Wireless communication systems

[0020] Figure 1 is a diagram illustrating an example of the system architecture of a wireless communication system 100 to which an embodiment of the present application may be applied. The wireless communication system 100 may include a network device 110 and a terminal device 120. The network device 110 may be a device that communicates with the terminal device 120. The network device 110 may provide network coverage for a specific geographical area and may communicate with the terminal device 120 located within the coverage area. The terminal device 120 may access a network (e.g., a wireless network) through the network device 110. Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.

[0021] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: 5G system or new radio (NR), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), etc. The technical solutions provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system, satellite communication system, etc.

[0022] The terminal device in the embodiments of the present application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. The terminal device in the embodiments of the present application may refer to a device that provides voice and / or data connectivity to a user and can be used to connect people, objects, and machines, such as a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device in the embodiments of the present application can be a mobile phone, a tablet computer, a laptop computer, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. Optionally, the terminal device can be used to act as a base station. For example, the terminal device can act as a scheduling entity that provides sidelink signals between terminal devices in vehicle to everything (V2X) or device to device (D2D). For example, a cellular phone and a car communicate with each other using sidelink signals. The cellular phone and smart home devices communicate without relaying the communication signal through a base station.

[0023] The network device in the embodiment of the present application may be a device for communicating with a terminal device. The network device may be, for example, an access network device or a wireless access network device. For example, the network device may be a base station. The base station may broadly cover the following various names, or be replaced with the following names: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, transmission point (transmitting and receiving point, TRP), transmission point (transmitting point, TP), home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, base band unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. The base station may be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof.

[0024] Application scenarios of communication systems

[0025] Currently, the main application scenarios of communication systems (e.g., 5G) can include enhanced mobile broadband (eMBB), ultra reliable low latency communication (URLLC), and massive machine type communication (mMTC).

[0026] eMBB can be applied to scenarios such as users accessing multimedia content, services, and data, and its demand is growing rapidly. Furthermore, eMBB can be deployed in a variety of environments, such as indoors, in urban areas, and in rural areas. The capabilities and requirements for eMBB vary significantly in these environments. Therefore, eMBB in different environments cannot be generalized and must be analyzed in detail based on specific deployment scenarios.

[0027] URLLC can be applied to scenarios such as industrial automation, power automation, remote medical operations (surgery), and traffic safety. Typical features of mMTC include high connection density, small data volumes, latency-insensitive services, low module cost, and long service life.

[0028] Radio resource control (RRC) state and mobility management

[0029] Currently, the protocol defines three RRC states of terminal devices: RRC-connected (RRC-active), RRC-idle, and RRC-inactive.

[0030] The RRC connection state may refer to the state in which the terminal device is in after completing the random access process but before performing RRC release. An RRC connection exists between the terminal device and a network device (e.g., an access network device), and a terminal device access stratum (AS) context exists between the network device and the terminal device. In the RRC connection state, the terminal device may transmit data with the network device, such as downlink data transmission and / or uplink data transmission. Alternatively, the terminal device may also transmit terminal device-specific data channels and / or control channels with the network device to transmit specific information or unicast information of the terminal device.

[0031] In the RRC connected state, the network device can determine the cell-level location information of the terminal device, that is, the network device can determine the cell to which the terminal device belongs. In the RRC connected state, after the terminal device moves, such as from one cell to another, the network device can control the terminal device to perform cell handover. Therefore, it can be seen that the mobility management of the terminal device in the RRC connected state may include cell handover. In addition, the mobility management of the terminal device in the RRC connected state can be controlled by the network device. Accordingly, the terminal device can switch to a designated cell according to the instructions issued by the network device.

[0032] The RRC idle state refers to the state of the terminal device when the terminal device resides in the cell but does not perform random access. The terminal device usually enters the RRC idle state after being powered on or after RRC is released. In the RRC idle state, there is no RRC connection between the terminal device and the network device (such as the resident network device), the network device does not store the AS context of the terminal device, and no connection is established between the network device and the core network for the terminal device. If the terminal device needs to enter the RRC connected state from the RRC idle state, it is necessary to initiate the RRC connection establishment process.

[0033] In the RRC idle state, the core network (CN) can send a paging message to the terminal device, that is, the paging process can be triggered by the CN. Optionally, the paging area can also be configured by the CN. In some cases, for a terminal device in the RRC idle state, when the terminal device moves (for example, from one cell to another), the terminal device can initiate a cell reselection process. In other cases, for a terminal device in the RRC idle state, when the terminal device needs to access a cell, the terminal device can initiate a cell selection process. That is, the mobility management of the terminal device in the RRC idle state may include cell reselection and / or cell selection.

[0034] The RRC inactive state is a state defined to reduce air interface signaling, quickly restore wireless connections, and quickly restore data services. The RRC inactive state is a state between the connected state and the idle state. The terminal device has previously entered the RRC connected state and then released the RRC connection with the network device, but the network device has saved the AS context of the terminal device. For example, the AS context of the terminal device exists on a certain base station. In addition, the connection established between the network device and the core network for the terminal device has not been released, that is, the user plane bearer and control plane bearer between the RAN and the CN are still maintained, that is, there is a CN-NR connection.

[0035] In the RRC inactive state, the RAN can send a paging message to the terminal device, that is, the paging process can be triggered by the RAN. The RAN-based paging area is managed by the RAN, and the network equipment can know the location of the terminal device based on the RAN paging area level.

[0036] In some cases, for a terminal device in an RRC inactive state, when the terminal device moves (for example, from one cell to another), the terminal device may initiate a cell reselection process. In other cases, for a terminal device in an RRC inactive state, when the terminal device needs to access a cell, the terminal device may initiate a cell selection process. In other words, the mobility management of a terminal device in an RRC inactive state may include cell reselection and / or cell selection.

[0037] NES Project for 5G

[0038] Energy consumption has become a significant component of operators' operating costs. According to a report by the Global System for Mobile Communications Association (GSMA)[1], mobile network energy costs account for approximately 23% of operators' total costs. Most of this energy consumption comes from radio access networks, particularly active antenna units (AAUs), while data centers and fiber optic transmission only account for a smaller share.

[0039] There are two types of energy consumption:

[0040] Dynamic part: such as energy consumption during data transmission / reception;

[0041] Static part: such as the energy consumption required to maintain the operation of the wireless access device (even if there is no continuous data transmission / reception).

[0042] The project should not only assess potential network energy consumption but also evaluate and balance the impact on network and user performance. For example, the project should not have a significant impact on key performance indicators (KPIs). These KPIs include spectrum efficiency, capacity, user perceived throughput (UPT), latency, terminal device power consumption, complexity, handover performance, call drop rate, and initial access performance.

[0043] Possible research directions for this project include studying the processes and signaling methods to support on-demand transmission of system information block 1 (SIB1) for idle / inactive terminal devices. Specifically, the above research may include one or more of the following: triggering methods for uplink wake-up signals (UL WUS) based on existing signals / channels; WUS configuration information provided to terminal devices; and information exchange between network devices (at least exchanging WUS configuration information).

[0044] After the introduction of SIB1-less cells (i.e., cells that do not send or do not actively send SIB1), how terminal devices operate in SIB1-less cells is a research focus. In view of the above research focus, the following describes the conclusions reached by RAN1#116.

[0045] First, for the purpose of this discussion, RAN1 will use the following assumptions:

[0046] Cell A: a cell that sends its own SIB1 at least periodically;

[0047] NES cell: A cell that can perform SIB1 transmission in response to a UL WUS from a terminal device.

[0048] To further study on-demand SIB1 for idle / inactive terminal devices, RAN1 studies the following options.

[0049] Regarding the target cell for UL WUS transmission:

[0050] - Option 1: The terminal device transmits UL WUS to the NES cell;

[0051] - Option 2: The terminal device transmits UL WUS to cell A.

[0052] Regarding the configuration for providing UL WUS transmission:

[0053] -Option A: The terminal device obtains the UL WUS configuration from the NES cell;

[0054] -Option B: The terminal device obtains the UL WUS configuration from cell A.

[0055] In addition to the options listed above, other options are not excluded.

[0056] According to relevant technologies, if a terminal device cannot receive SIB1 on a cell, the terminal device needs to be prohibited from accessing (barring) the cell for 300s and perform cell reselection in other cells with the same frequency. If other cells with the same frequency are also cells that do not send SIB1, the terminal device needs to perform multiple reselection processes and be prohibited from accessing these cells with the same frequency for 300s. After the terminal device reselects to a cell with another frequency point and resides in a cell with another frequency point, even if the frequency point priority of the cell that does not send SIB1 is higher than the priority of other frequencies, the terminal device cannot reselect to the cell that does not send SIB1 (because the cell is prohibited from access for 300s). This will delay or prevent the terminal device from selecting an on-demand SIB1 cell.

[0057] In response to the above problems, the embodiments of the present application are described in detail below.

[0058] Figure 2 is a schematic flow chart of a communication method provided in an embodiment of the present application. The method of Figure 2 can be performed by a first terminal device. The first terminal device can be the terminal device 120 in Figure 1. In some implementations, the first terminal device may include one or more of the following: a terminal device that supports NES, a terminal device that can request a cell to send SIB1, and a terminal device that supports or supports access to the first target cell. The first target cell may be a cell that sends SIB1 based on a request. Alternatively, the first target cell may be a cell that sends SIB1 on demand. Alternatively, the first target cell may be a cell that sends SIB1 based on a request from a terminal device. Alternatively, the first target cell is an NES cell.

[0059] 2 , in step S210 , in a first process, a first terminal device performs a first operation, which may include cell selection or cell reselection.

[0060] In some implementations, the first operation may include one or more of the following: determining or adjusting the frequency priority of the first cell to be high, determining or adjusting the frequency priority of the first cell to be higher than the frequency priority of the second cell, lifting the restriction on prohibiting access to the first cell, determining that the time for prohibiting access to the first cell reaches a preset time, reselecting to the first cell, requesting the first cell to send SIB1, sending UL WUS, and staying in the second cell.

[0061] The first cell mentioned above refers to a cell that does not send SIB1. Alternatively, the first cell refers to a cell that sends SIB1 based on a request. For example, the first cell sends SIB1 based on a request from a terminal device. The first cell and the first target cell mentioned above may refer to the same cell or the same type of cell.

[0062] The second cell mentioned above refers to a cell that sends SIB1. Alternatively, the second cell refers to a cell that periodically sends SIB1. The second cell may also be referred to as a non-on-demand SIB1 cell.

[0063] The prohibition of access to the first cell mentioned above may also be referred to as prohibition of the first cell, prohibition of selection of the first cell, and prohibition of reselection of the first cell.

[0064] The preset duration (or first duration) mentioned above refers to the prohibition time of the first cell. The preset duration may be predefined by the protocol or may be determined by the implementation of the terminal device. For example, the preset duration is 300 seconds.

[0065] The UL WUS mentioned above may be used to request the first cell to send SBI1.

[0066] The determination that the frequency priority of the first cell is high mentioned above may refer to: the first terminal device deeming the frequency priority of the first cell to be high. For example, according to the configuration of the network device, the frequency priority of the first cell is low, but in the first process, in order to select or reselect to the first cell, the first terminal device deems the frequency priority of the first cell to be high.

[0067] The determination that the frequency priority of the first cell is higher than the frequency priority of the second cell mentioned above may mean that the first terminal device considers that the frequency priority of the first cell is higher than the frequency priority of the second cell. For example, according to the configuration of the network device, the frequency priority of the first cell is lower than the frequency priority of the second cell, but in the first process, in order to select or reselect to the first cell, the first terminal device considers that the frequency priority of the first cell is higher than the frequency priority of the second cell.

[0068] The above-mentioned adjustment of the frequency priority of the first cell to high may mean: according to the configuration of the network device, the frequency priority of the first cell is low, but in the first process, in order to select or reselect to the first cell, the first terminal device adjusts the frequency priority of the first cell to high.

[0069] The above-mentioned determination that the frequency priority of the first cell is higher than the frequency priority of the second cell may mean: according to the configuration of the network device, the frequency priority of the first cell is lower than the frequency priority of the second cell, but in the first process, in order to select or reselect to the first cell, the first terminal device adjusts the frequency priority of the first cell to be higher than the frequency priority of the second cell.

[0070] In some implementations, the first process mentioned above refers to a cell reselection process, and before performing the first operation, the first terminal device resides on the second cell.

[0071] The first operation mentioned above can be triggered based on a certain condition. Hereinafter, this condition is referred to as the first condition. Next, the content of the first condition is described in detail with examples.

[0072] Example 1: The first condition may include satisfying a predefined first rule

[0073] In some implementations, the first condition may include satisfying a predefined first rule. In other words, whether the first operation is performed may be determined based on the predefined first rule.

[0074] The first rule mentioned here may be related to one or more of the channel quality of the first cell, the frequency priority of the first cell, the state of the first cell, or the type of the first terminal device.

[0075] As an example, the first rule may include that the channel quality of the first cell satisfies the second condition. For example, the first rule may include that the channel quality of the first cell is greater than or equal to a first threshold. Alternatively, the first rule may include that the difference between the channel quality of the first cell and the channel quality of the second cell is greater than or equal to a second threshold.

[0076] As another example, the first rule may include that the frequency priority of the first cell satisfies a third condition. The third condition may, for example, include: the frequency priority of the first cell is low. For another example, the third condition may include that the frequency priority of the first cell is lower than or equal to the frequency priority of the second cell.

[0077] As another example, the first rule may include that the state of the first cell satisfies the fourth condition. The fourth condition may, for example, include one or more of the following: the first cell is prohibited from access, the first cell is prohibited from access for a preset time (or called the first duration, such as 300 seconds), the time for which the first cell is prohibited from access does not reach the preset time (or called the first duration, such as 300 seconds), the first cell is prohibited from access because the first terminal device cannot obtain SIB1, or the first cell is prohibited from access because the first terminal device does not obtain the configuration information of the first channel or the first signal. The first signal or the first channel mentioned here is used to request the first cell to send SIB1, or the first channel or the first channel is used to trigger the first cell to send SIB1. The first signal may, for example, be a UL WUS. The first channel may, for example, be a random access channel.

[0078] As another example, the first rule may include that the first terminal device is a specific terminal device. The specific terminal device may, for example, include one or more of the following: a terminal device that supports NES, a terminal device that can request the cell to send SIB1, and a terminal device that supports or supports access to the first target cell. The first target cell may be a cell that sends SIB1 based on a request. Alternatively, the first target cell may be a cell that sends SIB1 on demand. Alternatively, the first target cell may be a cell that sends SIB1 based on a request from the terminal device. Alternatively, the first target cell is an NES cell. In some implementations, the first target cell and the first cell mentioned above may refer to the same cell or the same type of cell.

[0079] Example 2: The first condition is determined based on the first indication information

[0080] The first indication information may be displayed indication information sent by the network device (see step S310 in FIG3 ). The first indication information is used to instruct the first terminal device to reselect or whether to reselect to the first cell. Alternatively, the first indication information is used to instruct the first terminal device to perform or whether to perform the first operation.

[0081] For example, if the first terminal device receives the first indication information, it means that the first condition is met. At this time, the first terminal device reselects to the first cell, or the first terminal device performs the first operation.

[0082] For another example, if the first indication information appears, or the first terminal device receives the first indication information, it means that the first condition is met. At this time, the first terminal device reselects to the first cell, or the first terminal device performs the first operation.

[0083] For another example, if the first indication information is a specific value, it means that the first condition is met. At this time, the first terminal device reselects to the first cell, or the first terminal device performs the first operation.

[0084] For another example, if the first terminal device does not receive the first indication information, it means that the first condition is met. At this time, the first terminal device reselects to the first cell, or the first terminal device performs the first operation.

[0085] For another example, if the first indication information does not exist, it means that the first condition is met. At this time, the first terminal device reselects to the first cell, or the first terminal device performs the first operation.

[0086] The embodiments of the present application do not specifically limit the transmission or carrying method of the first indication information. For example, the first indication information may be included in the configuration information of the network device. In another example, the first indication information may be included in the configuration information of the second cell. In another example, the first indication information may be included in the configuration information of the first signal or the first channel. In another example, the first indication information may be sent to the first terminal device together with the configuration information of the first signal or the first channel.

[0087] In some implementations, if the first indication information indicates that the first terminal device resides in the second cell, the first terminal device continues to reside in the second cell.

[0088] Example 3: The first condition is associated with the configuration information of the first signal or the first channel

[0089] The first signal or the first channel is used to request the first cell to send SIB1. Alternatively, the first channel or the first channel is used to trigger the first cell to send SIB1. The first signal mentioned here may be, for example, a UL WUS. The first channel may be, for example, a random access channel.

[0090] In Example 3, the first condition may, for example, include: the first terminal device receives the first signal or configuration information of the first channel.

[0091] Example 4: The first condition includes the type of the first cell, the type of the frequency of the first cell, or whether the first cell sends SIB1 association

[0092] For example, the first condition may include: the first terminal device learns that the first cell is a cell that sends SIB1 based on a request (such as a request of the terminal device).

[0093] For another example, the first condition may include: the first terminal device learns that the frequency of the first cell is the frequency of the first target cell. The first target cell is the cell that sends SIB1 based on the request. For an introduction to the first target cell, please refer to the previous text and will not be repeated here.

[0094] For another example, the first condition may include: the first cell sends SIB1, or the first terminal device receives SIB1 sent by the first cell.

[0095] As mentioned above, the first cell is a cell that does not send SIB1, or the first cell is a cell that sends SIB1 based on a request. Whether the first cell is a cell that does not send SIB1, or whether the first cell is a cell that sends SIB1 based on a request, can be determined based on the second information sent by the second cell. The second information mentioned here may, for example, include one or more of the following: configuration information of the first signal or the first channel (the introduction of the first signal or the first channel can be found in the above text and will not be repeated here), the cell identifier or cell list (list, or cell set) corresponding to the first cell, or the cell identifier information of the cell that requests to send SIB1.

[0096] The embodiments of the present application do not specifically limit the setting method of the frequency priority of the first cell (the frequency priority mentioned in each embodiment of the present application refers to the frequency priority of the frequency point where the first cell is located, and the frequency priority can also be called the reselection priority) and the frequency priority of the second cell.

[0097] In some implementations, the frequency priority of the second cell can be set to a high priority, or the frequency priority of the second cell can be set to be higher than the frequency priority of the first cell. In this way, the terminal device can camp on the second cell (or the frequency of the second cell) as quickly as possible, and then reselect to the first cell (or the frequency of the first cell) as quickly as possible.

[0098] In some implementations, the frequency priority of the first cell can be set to a high priority, or the frequency priority of the first cell can be set to be higher than the frequency priority of the second cell. In this case, a certain method can be used to allow the terminal device to camp on the second cell (or the frequency of the second cell) as soon as possible, and then the terminal device can quickly reselect to the first cell based on the high frequency priority of the first cell.

[0099] In some implementations, if the frequency priority of the first cell is higher than the frequency priority of the second cell and the first condition mentioned above is not met, the first terminal device may determine (or consider) or adjust the frequency priority of the first cell to be low, or the first terminal device may determine (or consider) or adjust the frequency priority of the first cell to be lower than the frequency priority of the second cell.

[0100] Furthermore, in some implementations, after the first terminal device determines or adjusts the frequency priority of the first cell to be low, or the first terminal device determines or adjusts the frequency priority of the first cell to be lower than the frequency priority of the second cell, if the first condition is met, the first terminal device performs one of the following operations: determines (or considers) or adjusts the frequency priority of the first cell to be the frequency priority configured by the network device; determines (or considers) or adjusts the frequency priority of the first cell to be high; determines (or considers) or adjusts the frequency priority of the first cell to be higher than the frequency priority of the second cell.

[0101] The first process mentioned above may be a cell selection process. Before cell selection, the first terminal device may or may not have stored frequency information. If the first terminal device only stores the frequency of the first cell, or the frequency stored by the first terminal device includes the frequency of the first cell, and the first terminal device learns that the first cell is a cell that sends SIB1 based on a request, the first operation mentioned above may include one or more of the following: requesting the first cell to send SIB1, receiving SIB1 sent by the first cell, or staying in the first cell. This embodiment may be performed when the frequency priority of the second cell is higher than the frequency priority of the first cell. That is, even if the frequency priority of the second cell is higher than the frequency priority of the first cell, if the first terminal device only stores the frequency of the first cell, or the frequency stored by the first terminal device includes the frequency of the first cell, and the first terminal device learns that the first cell is a cell that sends SIB1 based on a request, the first terminal device may also request the first cell to send SIB1, receive SIB1 sent by the first cell, or stay in the first cell.

[0102] The first process mentioned above may be a cell selection process. Before cell selection, the first terminal device may or may not store frequency information. Assuming that the first terminal device only stores the frequency of the first cell, or the frequency stored by the first terminal device includes the frequency of the first cell, and the first terminal device learns that the first cell is a cell that sends SIB1 based on a request, before the first terminal device performs the first operation, and / or before the first terminal device obtains the second information sent by the second cell (the introduction of the second information can be found in the above text and will not be repeated here), and / or, if the first terminal device does not store or does not store valid second information, the first terminal device may perform one or more of the following operations: search for the frequency of the first cell, search for other frequencies other than the frequency of the first cell, determine that the first cell is prohibited from access, or reside in the second cell. This embodiment can be performed when the frequency priority of the second cell is higher than the frequency priority of the first cell. For example, when the frequency priority of the second cell is higher than the frequency priority of the first cell, if the first terminal device only stores the frequency of the first cell, or the frequencies stored by the first terminal device include the frequencies of the first cell, and the first terminal device knows that the first cell is a cell that sends SIB1 based on a request, then before the first terminal device performs the first operation, the first terminal device may also search for the frequency of the first cell, search for other frequencies other than the frequency of the first cell, and determine that the first cell is prohibited from access, or resides in the second cell.

[0103] The first process mentioned above may be a cell reselection process. Assume that the frequency priority of the second cell is higher than the frequency priority of the first cell, and before executing the cell reselection process, the first terminal device resides in the second cell. During the cell reselection process, there may be multiple first cells, and at least some of the multiple first cells have different corresponding frequencies (for example, there are three first cells, two of which have a frequency of f1 and another has a frequency of f3, or the three have frequencies of f1, f2, and f3, respectively) or different frequency priorities. In this case, the first operation mentioned above may include one or more of the following operations:

[0104] Determining or adjusting the frequency priority of at least some of the multiple first cells to be high;

[0105] Determining or adjusting the frequency priority of at least some of the multiple first cells to be higher than the frequency priority of the second cell;

[0106] Determining or adjusting the frequency priority of a second target cell in at least some of the multiple first cells to be high;

[0107] Determining or adjusting the frequency priority of a second target cell in at least some of the first cells among the multiple first cells to be higher than the frequency priority of the second cell;

[0108] Determining or adjusting frequency priorities of at least some of the multiple first cells to be the same;

[0109] Determining or adjusting the frequency priorities of multiple first cells to be the same;

[0110] Determining or adjusting the frequency priorities of the plurality of first cells to be high;

[0111] Determining or adjusting the frequency priority of the plurality of first cells to be higher than the frequency priority of the second cell;

[0112] Determining or adjusting a frequency priority of a second target cell among the multiple first cells to be high;

[0113] Determine or adjust the frequency priority of the second target cell among the multiple first cells to be higher than the frequency priority of the second cell.

[0114] The second target cell mentioned in various embodiments of the present application may include one cell or multiple cells. The second target cell is determined based on one or more of the following:

[0115] Implementation of the first terminal device;

[0116] an adjustment order of frequency priorities of multiple first cells;

[0117] channel qualities of multiple first cells;

[0118] an adjustment order of frequency priorities of at least some of the multiple first cells;

[0119] Channel qualities of at least some of the multiple first cells.

[0120] For example, the second target cell can be determined based on the adjustment order of the frequency priorities of multiple first cells (or at least some of the multiple first cells). The adjustment order of the frequency priorities can be determined based on pre-configuration information or network device configuration information. Exemplarily, based on the adjustment order of the frequency priorities, the frequencies corresponding to the multiple first cells (or at least some of the multiple first cells) can be sorted, and the frequency priority corresponding to the first-ranked frequency can be adjusted to a high priority or higher than the frequency priority of the second cell.

[0121] For another example, the second target cell can be determined based on the channel quality of multiple first cells (or at least some of the multiple first cells). Exemplarily, based on the channel quality of multiple first cells (or at least some of the multiple first cells), the frequency points corresponding to the multiple first cells (or at least some of the multiple first cells) can be sorted in order of channel quality from high to low, and the frequency point priority corresponding to the first-ranked frequency point is adjusted to a high priority or a priority higher than the frequency point priority of the second cell. Alternatively, if the channel quality of a first cell among the multiple first cells is greater than or equal to the third threshold, the frequency point priority corresponding to the frequency point of the first cell can be adjusted to a high priority or a priority higher than the frequency point priority of the second cell.

[0122] The first process mentioned above may be a cell selection process, and the frequency priority of the first cell is higher than the frequency priority of the second cell. In this case, if the first terminal device only stores the frequency of the second cell, or the frequency points stored by the first terminal device include the frequency points of the second cell and the frequency points of the first cell, then before performing the first operation, the first terminal device may search for the frequency points of the second cell and / or reside in the cell corresponding to the frequency points of the second cell.

[0123] The first process mentioned above may be a cell reselection process, in which the first terminal device resides in the second cell, and the frequency priority of the first cell is higher than the frequency priority of the second cell. In this scenario, assuming that the first terminal device resides in the second cell, and if there are multiple first cells, and at least some of the multiple first cells correspond to different frequencies (such as there are three first cells, two of which have a frequency of f1 and another has a frequency of f3, or the three have frequencies of f1, f2, and f3 respectively), the first terminal device reselects to the third target cell among the multiple first cells, and the third target cell is determined based on one or more of the following:

[0124] frequency priorities of at least some of the multiple first cells;

[0125] channel qualities of at least some of the multiple first cells;

[0126] an adjustment order of frequency priorities of at least some of the multiple first cells;

[0127] frequency priorities of multiple first cells;

[0128] channel qualities of multiple first cells;

[0129] Implementation of the first terminal device;

[0130] The adjustment order of the frequency priorities of multiple first cells.

[0131] For example, the third target cell can be determined based on the adjustment order of the frequency priorities of multiple first cells (or at least some of the multiple first cells). The adjustment order of the frequency priorities mentioned here can be determined based on pre-configuration information or configuration information of the network device. Exemplarily, the frequencies corresponding to the multiple first cells (or at least some of the multiple first cells) can be sorted based on the adjustment order of the frequency priorities of multiple first cells (or at least some of the multiple first cells), and then the first terminal device reselects the cell corresponding to the frequency that is ranked first.

[0132] For another example, the third target cell can be determined based on the channel quality of multiple first cells (or at least some of the multiple first cells). Furthermore, in some implementations, if the frequency priorities of multiple first cells are the same, the third target cell can be determined based on the channel quality of multiple first cells. Exemplarily, the first terminal device can reselect to the first cell with the best channel quality among multiple first cells (or at least some of the multiple first cells), or the first terminal device can reselect to any first cell among multiple first cells (or at least some of the multiple first cells) whose channel quality is higher than the fourth threshold.

[0133] The following describes the embodiments of the present application in more detail with reference to specific examples. It should be noted that the examples below are only intended to help those skilled in the art understand the embodiments of the present application, and are not intended to limit the embodiments of the present application to the specific numerical values ​​or specific scenarios illustrated. It is apparent that those skilled in the art can make various equivalent modifications or changes based on the examples given below, and such modifications or changes also fall within the scope of the embodiments of the present application.

[0134] Example 1 (Setting the frequency priority of the non-on-demand SIB1 cell to high priority. The terminal device camps on the frequency of the non-on-demand SIB1 cell as soon as possible, and then reselects to the frequency of the on-demand SIB1 cell as soon as possible)

[0135] 1.1. Cell Selection

[0136] Assume that the frequency of cell A (i.e., non-on-demand SIB1 cell) is F1, and the frequency of the NES cell (i.e., on-demand SIB1 cell) is F2. The reselection priority of F1 is higher than that of F2.

[0137] The first case: the terminal device does not have stored frequency and optional cell information.

[0138] Step 1: If the terminal device does not have stored frequency and optional cell information, the terminal device scans all frequency bands (such as NR bands).

[0139] Step 2: At each frequency point, the terminal device searches for the cell with the strongest signal at that frequency point.

[0140] Step 3: If a suitable cell is found, the cell is selected.

[0141] Step 3 may specifically include at least one of the following:

[0142] a. If the terminal device searches for frequency F1 first, the terminal device can camp on a cell with frequency F1, such as cell A, and obtain UL WUS configuration information (UL WUS config). The terminal device can then perform at least one of the following actions: consider the frequency priority of the NES cell to be higher (or higher than the frequency priority of F1), reselect to the NES cell corresponding to F2, and request the NES cell to send SIB1.

[0143] Optionally, the terminal device can determine whether to perform at least one of the following actions based on an explicit indication (corresponding to the first indication information in the previous text) or a predefined rule (corresponding to the first rule in the previous text): consider that the frequency priority of the NES cell is high (or higher than the frequency priority of F1), reselect to the NES cell corresponding to F2, and request the NES cell to send SIB1.

[0144] For example, the explicit indication comes from the network configuration, and / or the explicit configuration is configured by cell A, and / or the explicit indication is configured to the terminal device together with the UL WUS config.

[0145] For example, the predefined rule may be that the channel quality of the NES cell meets a certain condition (eg, greater than or equal to a first threshold).

[0146] For example, if the explicit indication instructs the terminal device to reselect to the NES cell, the terminal device performs reselection to the NES cell.

[0147] For example, if the explicit indication instructs the terminal device to stay in cell A, the terminal device continues to stay in cell A.

[0148] For example, if there is no explicit indication, and / or the explicit indication indicates reselection to the NES cell, and / or the terminal device obtains the UL WUS config, the terminal device considers that the F2 frequency point has a high priority, and / or, based on the assumption of the F2 high frequency point priority, reselects to the NES cell when the R criterion is met.

[0149] b. If the terminal device first searches for frequency F2, and there is no SIB1 information, the terminal device assumes that the NES cell is barred for 300 seconds. The terminal device then resides on a cell with frequency F1, such as cell A, and obtains the UL WUS config. The terminal device can then perform at least one of the following actions: consider the frequency priority of the NES cell to be higher (or higher than the frequency priority of F1), remove the 300-second barring of the NES cell (or assume that the cell has been barred for 300 seconds), reselect to the NES cell with frequency F2, and request the NES cell to send SIB1.

[0150] Optionally, based on the indication of cell A, it is known that the NES cell barred for 300 seconds is an on-demand SIB1 cell, and thus the bar is considered to be released. For example, it can be known that the NES cell barred for 300 seconds is an on-demand SIB1 cell based on the corresponding cell identifier configured by the UL WUS and / or the flag / list indication of the on-demand SIB1 cell.

[0151] Optionally, the terminal device determines whether to perform at least one of the following actions based on explicit indications or predefined rules: consider that the frequency priority of the NES cell is high (or higher than the frequency priority of F1), release the NES cell from being barred for 300s (or consider that the cell has been barred for 300s), perform reselection to the NES cell of F2, and request the NES cell to send SIB1.

[0152] For example, the explicit indication comes from the network configuration, and / or the explicit configuration is configured by cell A, and / or the explicit indication is configured to the terminal device together with the UL WUS config.

[0153] For example, the predefined rule may be that the channel quality of the NES cell meets a certain condition (eg, greater than or equal to a first threshold).

[0154] For example, if the explicit indication instructs the terminal device to reselect to the NES cell, the terminal device performs the above-mentioned behavior.

[0155] For example, if the explicit indication instructs the terminal device to stay in cell A, the terminal device continues to stay in cell A.

[0156] For example, if there is no explicit indication, and / or the explicit indication indicates reselection to the NES cell, and / or the terminal device obtains the UL WUS config, the terminal device believes that the F2 frequency point has a high priority, and / or, based on the assumption of the F2 high frequency point priority, the terminal device reselects to the NES cell when the R criterion is met.

[0157] Case 2: The terminal device has stored frequency and optional cell information.

[0158] Step 1: The terminal device selects a suitable cell based on the stored frequency and optional cell information.

[0159] Step 2: Once a suitable cell is found, the terminal device selects the cell.

[0160] Step 2 may specifically include at least one of the following:

[0161] a. If the terminal device stores the F1 frequency, or if the frequency information stored in the terminal device includes the F1 frequency (further including the F2 frequency and optional cell information), perform at least one of the following actions: the terminal device first searches for the F1 frequency and can reside in the cell of the F1 frequency.

[0162] For example, if the cell with frequency F1 is cell A, the terminal device resides in cell A and obtains the UL WUS config. The terminal device then performs at least one of the following actions: it considers that the frequency priority of the NES cell is high (or higher than the frequency priority of F1), reselects the NES cell of F2, and requests the NES cell to send SIB1.

[0163] Optionally, the terminal device determines whether to perform at least one of the following actions based on explicit indications or predefined rules: considering that the frequency priority of the NES cell is high (or higher than the frequency priority of F1), reselecting the NES cell corresponding to F2, and requesting the NES cell to send SIB1.

[0164] For example, the explicit indication comes from the network configuration, and / or the explicit configuration is configured by cell A, and / or the explicit indication is configured to the terminal device together with the UL WUS config.

[0165] For example, the predefined rule may be that the channel quality of the NES cell meets a certain condition (eg, greater than or equal to a first threshold).

[0166] For example, if the explicit indication instructs the terminal device to reselect to the NES cell, the terminal device performs the above-mentioned behavior.

[0167] For example, if the explicit indication instructs the terminal device to stay in cell A, the terminal device continues to stay in cell A.

[0168] For example, if there is no explicit indication, and / or the explicit indication indicates reselection to the NES cell, and / or the terminal device obtains the UL WUS config, the terminal device believes that the F2 frequency point has a high priority, and / or, based on the assumption of the F2 high frequency point priority, the terminal device reselects to the NES cell when the R criterion is met.

[0169] b. If the terminal device only stores the F2 frequency, or if the information stored by the terminal device includes the F2 frequency and the terminal device knows the information of the on-demand SIB1 cell of the F2 frequency, the terminal device performs at least one of the following actions: searching for the F2 frequency, the terminal device sends an on-demand SIB1 request, obtains the SIB1, and selects the NES cell to reside in. For example, the terminal device can obtain the information of the on-demand SIB1 cell of the F2 frequency based on the UL WUS configuration and the cell identifier corresponding to the UL WUS configuration or the flag / list indication of the on-demand SIB1 cell.

[0170] c. If the terminal device only stores the F2 frequency point, or if the information stored by the terminal device includes the F2 frequency point and the information of the on-demand SIB1 cell of the F2 frequency point is known, the F2 frequency point is searched. Since there is no SIB1 information, the terminal device believes that the NES cell is barred for 300 seconds. Afterwards, the terminal device resides on the cell of the F1 frequency point. For example, the cell of the F1 frequency point is cell A, then the terminal device resides in cell A and obtains the UL WUS config. Then, the terminal device performs at least one of the following actions: considers that the frequency priority of the NES cell is high (or higher than the frequency priority of F1), releases the bar of the NES cell (or considers that the cell has been barred for 300 seconds), performs reselection to the NES cell of F2, and requests the NES cell to send SIB1. Optionally, based on the indication of cell A, it is learned that the NES cell that has been barred for 300 seconds is an on-demand SIB1 cell, and thus the bar is considered to be released.

[0171] For example, the terminal device can obtain information about the on-demand SIB1 cell at the F2 frequency point or know that the NES cell barred for 300s is an on-demand SIB1 cell based on the cell identifier corresponding to the UL WUS config and / or the flag / list indication of the on-demand SIB1 cell.

[0172] Optionally, the terminal device determines whether to perform at least one of the following actions based on explicit indications or predefined rules: consider that the frequency priority of the NES cell is high (or higher than the frequency priority of F1), release the bar of the NES cell (or consider that the cell has been barred for 300s), perform reselection to the NES cell of F2, and request the NES cell to send SIB1.

[0173] For example, the explicit indication comes from the network configuration, and / or the explicit configuration is configured by cell A, and / or the explicit indication is configured to the terminal device together with the UL WUS config.

[0174] For example, the predefined rule may be that the channel quality of the NES cell meets a certain condition (eg, greater than or equal to a first threshold).

[0175] For example, if the explicit indication instructs the terminal device to reselect to the NES cell, the terminal device performs an action.

[0176] For example, if the explicit indication instructs the terminal device to stay in cell A, the terminal device continues to stay in cell A.

[0177] For example, if there is no explicit indication, and / or the explicit indication indicates reselection to the NES cell, and / or the terminal device obtains the UL WUS config, the terminal device believes that the F2 frequency point has a high priority, and / or, based on the assumption of the F2 high frequency point priority, the terminal device reselects to the NES cell when the R criterion is met.

[0178] Step 3: If there is no suitable cell, the terminal device performs the operation of the first case of Example 1.

[0179] 1.2. Cell Reselection

[0180] Assume that the frequency of cell A is F1 and the frequency of NES cell is F2. The reselection priority of F1 is higher than that of F2.

[0181] Step 1: The terminal device resides in the cell where SIB1 is sent, that is, cell A.

[0182] Step 2: Under the first condition, the terminal device considers or adjusts the frequency priority of F2 to be high (or higher than the frequency priority of F1).

[0183] The first condition is at least one of the following: obtaining a UL WUS configuration based on an explicit indication or predefined rules, learning that the NES cell is an on-demand SIB1 cell, learning that the frequency of the NES cell is an on-demand SIB1 cell frequency, and that the NES cell has transmitted SIB1. In some embodiments, the UL WUS configuration can be used by a terminal device to request the NES cell to transmit SIB1.

[0184] a. Optionally, if the NES cell is barred for 300 seconds because the SIB1 is not obtained, the terminal device removes the bar of the NES cell (or considers that the cell has been barred for 300 seconds).

[0185] b. Optionally, if there are multiple NES cells, and the frequencies corresponding to the multiple NES cells include multiple frequencies, the terminal device considers that the frequency priorities of the multiple NES cells are all high or higher than the F1 frequency priority (or the terminal device adjusts the frequency priorities of the multiple NES cells to be high or higher than the F1 frequency priority). Alternatively, if there are multiple NES cells, and the frequencies corresponding to the multiple NES cells include multiple frequencies, the terminal device considers that the frequency priority of one of the NES cells is high or higher than the F1 frequency priority (or the terminal device adjusts the frequency priority of one of the NES cells to be high or higher than the F1 frequency priority).

[0186] Among them, which NES cell frequency the terminal device considers to be high or higher than the frequency priority of F1 (or which NES cell frequency the terminal device adjusts to be high or higher than the frequency priority of F1) depends on the implementation of the terminal device, or is determined based on the frequency priority adjustment order (order), or is determined based on the channel quality.

[0187] Optionally, the frequency priority adjustment order may be pre-configured or network configured.

[0188] As an example, the frequencies corresponding to the NES cells may be ranked based on the frequency priority adjustment order, and the frequency priority corresponding to the first ranked frequency may be adjusted to a high priority or higher than the priority of the F1 frequency.

[0189] As another example, the frequencies corresponding to the NES cells can be sorted from high to low based on the channel quality of the NES cells, and the frequency priority corresponding to the first-ranked frequency can be adjusted to a high priority or higher than the priority of the F1 frequency.

[0190] As another example, if the channel quality of the NES cell is greater than or equal to the Xth threshold, the frequency priority corresponding to the frequency of the NES cell is adjusted to a high priority or a priority higher than that of the F1 frequency.

[0191] c. If the first condition is not met, the terminal device continues to reside in the F1 frequency point or cell A.

[0192] d. Optionally, the explicit indication comes from the network configuration, and / or the explicit configuration is configured by cell A, and / or the explicit indication is configured to the terminal device together with the UL WUS config.

[0193] e. Optionally, the predefined rule may be that the channel quality of the NES cell meets a certain condition (eg, greater than or equal to a first threshold).

[0194] f. For example, if the explicit indication instructs the terminal device to reselect to the NES cell, the terminal device considers or adjusts the frequency priority of the F2 frequency to be higher (or higher than the frequency priority of the F1).

[0195] g. For example, if the explicit indication instructs the terminal device to stay in cell A, the terminal device continues to stay in cell A.

[0196] Step 3: The terminal device performs cell reselection and reselects to the NES cell.

[0197] a. Optionally, cell A may provide reselection parameters for the NES cell, such as all or part of the reselection configuration parameters used for R criterion judgment.

[0198] b. Optionally, if there is no explicit indication, and / or the explicit indication indicates reselection to the NES cell, and / or the terminal device obtains the UL WUS config, the terminal device believes that the F2 frequency point has a high priority, and / or, based on the assumption of the F2 high frequency point priority, the terminal device reselects to the NES cell when the R criterion is met.

[0199] In Example 1 provided herein, the frequency priority of a non-on-demand SIB1 cell is set to high priority, allowing a terminal device to camp on the frequency of a non-on-demand SIB1 cell as quickly as possible and then reselect to the frequency of an on-demand SIB1 cell as quickly as possible. By implementing this embodiment of the present application, a terminal device can reselect to an on-demand SIB1 cell or frequency as quickly as possible.

[0200] Example 2 (Setting the frequency priority of the on-demand SIB1 cell to high priority. However, the terminal device is required to camp on the frequency of the non-on-demand SIB1 cell as soon as possible and then reselect to the frequency of the on-demand SIB1 cell as soon as possible)

[0201] 2.1. Cell Selection

[0202] Assume that the frequency of cell A is F1 and the frequency of the NES cell (i.e., the on-demand SIB1 cell) is F2. The reselection priority of F2 is higher than that of F1.

[0203] Case 1: The terminal device does not have stored frequency and optional cell information

[0204] Step 1: If the terminal device does not have stored frequency points and optional cell information, the terminal device scans all frequency bands (such as NR bands).

[0205] Step 2: At each frequency point, the terminal device searches for the cell with the strongest signal quality.

[0206] Step 3: If a suitable cell is found, the cell is selected.

[0207] Step 3 may specifically include at least one of the following.

[0208] a. If the terminal device searches for frequency F1 first, it can camp on a cell with frequency F1, such as cell A. After camping on cell A, the terminal device obtains the UL WUS config, and then, based on the high priority of F2, reselects to the NES cell of F2 and / or requests the NES cell to send SIB1.

[0209] b. If the terminal device searches for the F2 frequency first, since there is no SIB1 information, the terminal device believes that the NES cell is barred for 300 seconds. Afterwards, the terminal device resides on the cell with the F1 frequency, such as cell A. After the terminal device resides in cell A, it obtains the UL WUS config. Then, based on the high priority of F2 and the indication from cell A that the NES cell that has been barred for 300 seconds is an on-demand SIB1 cell, the terminal device performs at least one of the following actions: canceling the bar of the NES cell (or believing that the cell has been barred for 300 seconds), performing reselection to the NES cell of F2, and requesting the NES cell to send SIB1. For example, based on the cell identifier corresponding to the UL WUS config, and / or the flag / list indication of the on-demand SIB1 cell, it can be known that the NES cell that has been barred for 300 seconds is an on-demand SIB1 cell.

[0210] Optionally, the terminal device determines whether to perform at least one of the following actions based on explicit instructions or predefined rules: release the bar of the NES cell (or consider that the cell has been barred for 300s), perform reselection to the NES cell of F2, and request the NES cell to send SIB1.

[0211] For example, the explicit indication comes from the network configuration, and / or the explicit configuration is configured by cell A, and / or the explicit indication is configured to the terminal device together with the UL WUS config.

[0212] For example, the predefined rule may be that the channel quality of the NES cell meets a certain condition (eg, greater than or equal to a first threshold).

[0213] For example, if the explicit indication instructs the terminal device to reselect to the NES cell, the terminal device performs an action.

[0214] For example, if the explicit indication instructs the terminal device to stay in cell A, the terminal device continues to stay in cell A.

[0215] For example, if there is no explicit indication, and / or the explicit indication indicates reselection to the NES cell, and / or the terminal device obtains the UL WUS config and reselects to the NES cell if the R criterion is met.

[0216] Case 2: The terminal device has stored frequency and optional cell information.

[0217] Step 1: The terminal device selects a suitable cell based on the stored frequency and optional cell information.

[0218] Step 2: Once a suitable cell is found, the terminal device selects the cell. Step 2 may specifically include at least one of the following.

[0219] a. If the terminal device stores the F1 frequency, or if the frequency information stored in the terminal device includes the F1 frequency (and further includes the F2 frequency and optional cell information), perform at least one of the following actions: The terminal device first searches for the F1 frequency and may camp on a cell with the F1 frequency, such as cell A. After camping on cell A, the terminal device obtains the UL WUS configuration. Then, based on the high priority of F2, the terminal device reselects to the NES cell of F2 and / or requests the NES cell to send SIB1.

[0220] b. If the terminal device only stores the F2 frequency, or if the information stored by the terminal device includes the F2 frequency and knows the information of the on-demand SIB1 cell of the F2 frequency, the terminal device performs at least one of the following actions: searching for the F2 frequency, sending an on-demand SIB1 request, obtaining SIB1, and selecting the NES cell to reside in.

[0221] For example, the terminal device can obtain information about the on-demand SIB1 cell at the F2 frequency based on the UL WUS configuration information and the cell identifier corresponding to the UL WUS configuration or the sign / list indication of the on-demand SIB1 cell.

[0222] c. If the terminal device only stores the F2 frequency, or if the information stored by the terminal device includes the F2 frequency and the information of the on-demand SIB1 cell of the F2 frequency is known, the terminal device can search for the F2 frequency. Since the NES cell of the F2 frequency does not have SIB1 information, the terminal device believes that the NES cell is barred for 300 seconds. Afterwards, the terminal device resides on the cell of the F1 frequency, such as the cell of the F1 frequency is cell A. After the terminal device resides in cell A, it obtains the UL WUS config. Then, based on the high priority of F2 and based on the indication of cell A that the NES cell that has been barred for 300 seconds is an on-demand SIB1 cell, the terminal device performs at least one of the following actions: canceling the bar of the NES cell (or believing that the cell has been barred for 300 seconds), performing reselection to the NES cell of F2, and requesting the NES cell to send SIB1.

[0223] For example, the terminal device can obtain information about the on-demand SIB1 cell at the F2 frequency point or know that the NES cell barred for 300s is an on-demand SIB1 cell based on the cell identifier corresponding to the UL WUS config and / or the flag / list indication of the on-demand SIB1 cell.

[0224] Optionally, the terminal device determines whether to perform at least one of the following actions based on explicit instructions or predefined rules: release the bar of the NES cell (or consider that the cell has been barred for 300s), perform reselection to the NES cell of F2, and request the NES cell to send SIB1.

[0225] For example, the explicit indication comes from the network configuration, and / or the explicit configuration is configured by cell A, and / or the explicit indication is configured to the terminal device together with the UL WUS config.

[0226] For example, the predefined rule may be that the channel quality of the NES cell meets a certain condition (eg, greater than or equal to a first threshold).

[0227] For example, if the explicit indication instructs the terminal device to reselect to the NES cell, the terminal device performs the above-mentioned behavior.

[0228] For example, if the explicit indication instructs the terminal device to stay in cell A, the terminal device continues to stay in cell A.

[0229] For example, if there is no explicit indication, and / or the explicit indication indicates reselection to the NES cell, and / or the terminal device obtains the UL WUS config and reselects to the NES cell if the R criterion is met.

[0230] Step 3: If there is no suitable cell, the terminal device performs the operation of the first case in Example 2.

[0231] 2.2 Cell Reselection

[0232] Assume that the frequency of cell A is F1 and the frequency of the NES cell (i.e., the on-demand SIB1 cell) is F2. The reselection priority of F2 is higher than that of F1.

[0233] Step 1: The terminal device resides in the cell where SIB1 is sent, that is, cell A.

[0234] Step 2: Under the first condition, the terminal device performs cell reselection and reselects to the NES cell or the frequency of the NES cell.

[0235] The first condition is at least one of the following: based on explicit indication or predefined rules, UL WUS config is obtained (UL WUS config can be used by the terminal device to request the NES cell to send SIB1), it is learned that the NES cell is an on-demand SIB1 cell, it is learned that the frequency of the NES cell is the frequency of the on-demand SIB1 cell, and the NES cell sends SIB1.

[0236] a. Optionally, if the NES cell is barred for 300 seconds because the SIB1 is not obtained, the terminal device removes the bar of the NES cell (or considers that the cell has been barred for 300 seconds).

[0237] Optionally, if the explicit indication instructs the terminal device to reselect to the NES cell or satisfies predefined rules, and the NES cell is barred for 300s because SIB1 is not obtained, the terminal device releases the bar of the NES cell (or considers that the cell has been barred for 300s).

[0238] b. Optionally, if there are multiple NES cells, and the frequencies corresponding to the multiple NES cells include multiple frequencies, the terminal device determines which NES cell to reselect based on the reselection priorities and / or the channel qualities of the multiple NES cells. Alternatively, if there are multiple NES cells, and the frequencies corresponding to the multiple NES cells include multiple frequencies, the terminal device reselects to another NES cell, and which NES cell to reselect depends on the implementation of the terminal device, or is determined based on a frequency priority adjustment order, or based on channel quality.

[0239] Optionally, the frequency priority adjustment order may be pre-configured or network configured.

[0240] As an example, the order may be adjusted based on the frequency priority, the frequencies corresponding to the NES cells may be ranked, and the terminal device may reselect the frequency that is ranked first.

[0241] As another example, when the reselection priorities are the same, the terminal device reselects to the NES cell with the best channel quality or any NES cell with a channel quality higher than a threshold X.

[0242] As another example, regardless of the reselection priority, the terminal device reselects to the NES cell with the best channel quality or any NES cell with a channel quality higher than a threshold X.

[0243] c. Optionally, the explicit indication comes from the network configuration, and / or the explicit configuration is configured by cell A, and / or the explicit indication is configured to the terminal device together with the UL WUS config.

[0244] d. Optionally, the predefined rule may be that the channel quality of the NES cell meets a certain condition (eg, greater than or equal to a first threshold).

[0245] e. For example, if the explicit indication instructs the terminal device to reselect to the NES cell, the terminal device reselects to the NES cell.

[0246] f. For example, if the explicit indication instructs the terminal device to stay in cell A, the terminal device continues to stay in cell A.

[0247] g. If the first condition is not met, the terminal device resides in cell A or F1, and / or the terminal device considers that the frequency priority of F2 is low or lower than the frequency priority of F1 (or the terminal device adjusts the frequency priority of F2 to be low or lower than the frequency priority of F1). Further, if the first condition is subsequently met, the terminal device adjusts the frequency priority of F2 to the configured priority (or adjusts the frequency priority of F2 to be high, or adjusts the frequency priority of F2 to be higher than the frequency priority of F1), and / or performs cell reselection.

[0248] h. Optionally, cell A may provide reselection parameters for the NES cell, such as all or part of the reselection configuration parameters used for R criterion judgment.

[0249] In Example 2 provided herein, the frequency priority of the on-demand SIB1 cell is set to high priority. However, the terminal device is required to camp on the frequency of the non-on-demand SIB1 cell as soon as possible, and then reselect to the frequency of the on-demand SIB1 cell as soon as possible. By implementing this embodiment of the present application, when the NES cell reselection priority is high, the terminal device can first select a normal cell to camp on.

[0250] The method embodiment of the present application is described in detail above in conjunction with Figures 1 to 3 . The device embodiment of the present application is described in detail below in conjunction with Figures 4 to 6 . It should be understood that the description of the method embodiment corresponds to the description of the device embodiment. Therefore, for parts not described in detail, reference can be made to the above method embodiment.

[0251] Figure 4 is a schematic diagram of the structure of a communication device provided by one embodiment of the present application. The communication device 400 in Figure 4 is a first terminal device, and the communication device 400 includes a processing module 410. The processing module 410 can be used to perform a first operation in a first process. The first process includes cell selection or cell reselection.

[0252] The first operation includes one or more of the following: determining or adjusting the frequency priority of the first cell to be high; determining or adjusting the frequency priority of the first cell to be higher than the frequency priority of the second cell; lifting the restriction on prohibiting access to the first cell; determining that the time for prohibiting access to the first cell reaches a preset time; reselecting to the first cell; requesting the first cell to send a system information block SIB1; sending an uplink wake-up signal UL WUS message; staying in the second cell; wherein the first cell does not send SIB1, or sends SIB1 based on a request; and / or the second cell sends SIB1, or periodically sends SIB1.

[0253] In some implementations, the first operation is triggered based on a first condition, and the first condition includes one or more of the following: satisfying a predefined first rule; receiving first indication information, the first indication information is used to instruct the first terminal device to reselect to the first cell, or the first indication information is used to instruct the first terminal device to perform the first operation; the first indication information is not received or does not exist; receiving configuration information of a first signal or a first channel, the first signal or the first channel is used to request the first cell to send SIB1, or the first channel or the first channel is used to trigger the first cell to send SIB1; knowing that the first cell is a cell that sends SIB1 based on a request; knowing that the frequency of the first cell is the frequency of the first target cell, the first target cell is a cell that sends SIB1 based on a request; the first cell sends SIB1.

[0254] In some implementations, the first indication information is included in the configuration information of the network device; or, the first indication information is included in the configuration information of the second cell; or, the first indication information is included in the configuration information of the first signal or the first channel; or, the first indication information is sent to the first terminal device together with the configuration information of the first signal or the first channel.

[0255] In some implementations, the first rule includes one or more of the following: the channel quality of the first cell meets the second condition; the frequency priority of the first cell meets the third condition; the state of the first cell meets the fourth condition; and the first terminal device is a specific terminal device.

[0256] In some implementations, the third condition includes one or more of the following: the frequency priority of the first cell is low; the frequency priority of the first cell is lower than or equal to the frequency priority of the second cell.

[0257] In some implementations, the fourth condition includes one or more of the following: access to the first cell is prohibited; access to the first cell is prohibited for a preset time; the time for which access to the first cell is prohibited does not reach a preset time; access to the first cell is prohibited because the first terminal device cannot obtain SIB1; access to the first cell is prohibited because the first terminal device does not obtain the configuration information of the first channel or the first signal.

[0258] In some implementations, the specific terminal device includes one or more of the following: a terminal device that supports network energy saving NES; a terminal device that can request a cell to send SIB1; a terminal device that supports or supports access to a first target cell; wherein the first target cell sends SIB1 based on a request.

[0259] In some implementations, the processing module 410 is further configured to: if the first indication information indicates that the first terminal device resides in the second cell, continue to reside in the second cell.

[0260] In some implementations, the processing module 410 is further configured to: if the first condition is not satisfied, continue to reside in the second cell, or continue to reside in a cell corresponding to a frequency of the second cell.

[0261] In some implementations, the processing module 410 is also used to: if the frequency priority of the first cell is higher than the frequency priority of the second cell and the first condition is not met, determine or adjust the frequency priority of the first cell to be low, or determine or adjust the frequency priority of the first cell to be lower than the frequency priority of the second cell.

[0262] In some implementations, the processing module 410 is also used to: after determining or adjusting the frequency priority of the first cell to be low, or determining or adjusting the frequency priority of the first cell to be lower than the frequency priority of the second cell, if the first condition is met, perform one of the following operations: determine or adjust the frequency priority of the first cell to be the frequency priority configured by the network device; determine or adjust the frequency priority of the first cell to be high; determine or adjust the frequency priority of the first cell to be higher than the frequency priority of the second cell.

[0263] In some implementations, the first terminal device determines, based on the second information sent by the second cell, that the first cell is a cell that sends SIB1 based on a request.

[0264] In some implementations, the first process is cell selection. If the first terminal device only stores the frequency of the first cell, or the frequency stored by the first terminal device includes the frequency of the first cell, and the first terminal device learns that the first cell is a cell that sends SIB1 based on a request, then the first operation includes one or more of the following: requesting the first cell to send SIB1; receiving SIB1 sent by the first cell; and staying in the first cell.

[0265] In some implementations, the first process is cell selection, the first terminal device only stores the frequency of the first cell, or the frequency stored by the first terminal device includes the frequency of the first cell, and the first terminal device learns that the first cell is a cell that sends SIB1 based on a request; before the first terminal device performs the first operation, and / or before the first terminal device obtains the second information sent by the second cell, and / or the first terminal device does not store or does not store valid second information, the processing module is also used to perform one or more of the following operations: searching for the frequency of the first cell; searching for other frequencies other than the frequency of the first cell; determining that the first cell is prohibited from access; and staying in the second cell.

[0266] In some implementations, the second information includes one or more of the following: configuration information of the first signal or the first channel; a cell identifier or cell list corresponding to the first cell; cell identifier information of the cell based on the request to send SIB1; wherein the first signal or the first channel is used to request the first cell to send SIB1, or the first channel or the first channel is used to trigger the first cell to send SIB1.

[0267] In some implementations, the frequency priority of the second cell is higher than the frequency priority of the first cell.

[0268] In some implementations, the first terminal device resides in the second cell, and the first process is cell reselection. If there are multiple first cells, and at least some of the multiple first cells correspond to different frequencies or different frequency priorities, then the first operation includes one of the following: determining or adjusting the frequency priority of at least some of the first cells to be high; determining or adjusting the frequency priority of at least some of the first cells to be higher than the frequency priority of the second cell; determining or adjusting the frequency priority of the second target cell in at least some of the first cells to be high; determining or adjusting the frequency priority of the second target cell in at least some of the first cells to be higher than the frequency priority of the second cell; determining or adjusting the frequency priorities of at least some of the first cells to be the same; determining or adjusting the frequency priorities of the multiple first cells to be the same; determining or adjusting the frequency priorities of the multiple first cells to be high; determining or adjusting the frequency priority of the multiple first cells to be higher than the frequency priority of the second cell; determining or adjusting the frequency priority of the second target cell in the multiple first cells to be high; determining or adjusting the frequency priority of the second target cell in the multiple first cells to be higher than the frequency priority of the second cell.

[0269] In some implementations, the second target cell is determined based on one or more of: implementation of the first terminal device; adjustment order of frequency priorities of the multiple first cells; channel quality of the multiple first cells; adjustment order of frequency priorities of at least some of the first cells; channel quality of at least some of the first cells.

[0270] In some implementations, the frequency priority of the first cell is higher than the frequency priority of the second cell.

[0271] In some implementations, if the first terminal device only stores the frequency of the second cell, or the frequency stored by the first terminal device includes the frequency of the second cell and the frequency of the first cell, the processing module is also used to: search for the frequency of the second cell before performing the first operation; and / or reside in the cell corresponding to the frequency of the second cell.

[0272] In some implementations, the first terminal device resides in the second cell, and the first process is cell reselection. If there are multiple first cells, and at least some of the multiple first cells correspond to different frequencies, the first terminal device reselects to a third target cell among the multiple first cells, and the third target cell is determined based on one or more of the following: the frequency priority of at least some of the first cells; the channel quality of at least some of the first cells; the adjustment order of the frequency priority of at least some of the first cells; the frequency priority of the multiple first cells; the channel quality of the multiple first cells; the implementation of the first terminal device; and the adjustment order of the frequency priority of the multiple first cells.

[0273] In some implementations, the first process is cell reselection, and before performing the first operation, the first terminal device resides on the second cell.

[0274] In some implementations, the first terminal device includes one or more of the following: a terminal device supporting NES; a terminal device capable of requesting a cell to send SIB1; a terminal device that supports or supports access to a first target cell; wherein the first target cell sends SIB1 based on a request.

[0275] In some implementations, the first cell sends SIB1 based on a request, including: the first cell sends SIB1 based on a request of a terminal device.

[0276] Figure 5 is a structural diagram of a communication device provided by another embodiment of the present application. The communication device 500 shown in Figure 5 can be the network device mentioned above. The communication device 500 includes a communication module 510. The communication module 510 is used to send a first indication information to a first terminal device; wherein the first indication information is used to trigger the first terminal device to perform a first operation in a first process, or the first indication information is used to instruct the first terminal device to perform the first operation; wherein the first process includes cell selection or cell reselection; wherein the first operation includes one or more of the following: determining or adjusting the frequency priority of the first cell to be high; determining or adjusting the frequency priority of the first cell to be higher than the frequency priority of the second cell; lifting the restriction on prohibiting access to the first cell; determining that the time for prohibiting access to the first cell reaches a preset time; reselecting to the first cell; requesting the first cell to send SIB1; sending a UL WUS message; staying in the second cell; wherein the first cell does not send SIB1, or, sends SIB1 based on a request; and / or, the second cell sends SIB1, or periodically sends SIB1.

[0277] In some implementations, the first indication information is included in the configuration information of the network device; or, the first indication information is included in the configuration information of the second cell; or, the first indication information is included in the configuration information of the first signal or the first channel; or, the first indication information is sent to the first terminal device together with the configuration information of the first signal or the first channel.

[0278] In some implementations, the first indication information is used to indicate that the first terminal device resides in the second cell.

[0279] In some implementations, the first process is cell reselection, and before performing the first operation, the first terminal device resides on the second cell.

[0280] In some implementations, the first terminal device includes one or more of the following: a terminal device supporting NES; a terminal device capable of requesting a cell to send SIB1; a terminal device that supports or supports access to a first target cell; wherein the first target cell sends SIB1 based on a request.

[0281] Figure 6 is a schematic block diagram of a communication device according to an embodiment of the present application. The dashed lines in Figure 6 indicate that the unit or module is optional. Device 600 may be used to implement the method described in the above method embodiment. Device 600 may be a chip, a terminal device, or a core network device.

[0282] The device 600 may include one or more processors 610. The processor 610 may support the device 600 to implement the method described in the above method embodiment. The processor 610 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0283] The apparatus 600 may further include one or more memories 620. The memories 620 store programs that can be executed by the processor 610, causing the processor 610 to perform the methods described in the above method embodiments. The memories 620 may be independent of the processor 610 or integrated into the processor 610.

[0284] The apparatus 600 may further include a transceiver 630. The processor 610 may communicate with other devices or chips via the transceiver 630. For example, the processor 610 may transmit and receive data with other devices or chips via the transceiver 630.

[0285] The present invention also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to the communication device provided in the present invention, and the program enables a computer to execute the method performed by the communication device in each embodiment of the present invention.

[0286] The present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the communication device provided in the present application, and the program causes a computer to execute the method performed by the communication device in each embodiment of the present application.

[0287] The embodiments of the present application also provide a computer program. The computer program can be applied to the communication device provided in the embodiments of the present application, and the computer program enables a computer to execute the method executed by the communication device in each embodiment of the present application.

[0288] It should be understood that the terms "system" and "network" in this application can be used interchangeably. In addition, the terms used in this application are only used to explain the specific embodiments of this application and are not intended to limit this application. The terms "first", "second", "third", and "fourth" in the specification and claims of this application and the accompanying drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0289] In the embodiments of this application, the term "indication" may refer to a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" may refer to a direct indication of B, e.g., B can obtain information through A; it may refer to an indirect indication of B, e.g., A indicates C, e.g., B can obtain information through C; or it may refer to an association between A and B.

[0290] In the embodiment of the present application, "B corresponding to A" means that B is associated with A and B can be determined based on A. However, it should be understood that determining B based on A does not mean determining B based solely on A, but B can also be determined based on A and / or other information.

[0291] In the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and indication, configuration and configuration, etc.

[0292] In the embodiments of the present application, "pre-definition" or "pre-configuration" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., a terminal device and a network device). The present application does not limit the specific implementation method. For example, pre-definition may refer to information defined in a protocol.

[0293] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communications field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0294] In the embodiments of this application, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0295] In various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean 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 the present application.

[0296] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0297] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0298] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0299] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. 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 computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital versatile disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0300] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that: include: In a first process, the first terminal device performs a first operation, where the first process includes cell selection or cell reselection, and the first operation includes one or more of the following: Determine or adjust the frequency priority of the first cell to be high; Determining or adjusting the frequency priority of the first cell to be higher than the frequency priority of the second cell; Lifting the restriction on prohibiting access to the first cell; Determining that the time for prohibiting access to the first cell reaches a preset time; Reselect to the first cell; Request the first cell to send a system information block SIB1; Send an uplink wake-up signal UL WUS message; Reside in the second cell; The first cell does not send SIB1, or sends SIB1 based on a request; and / or the second cell sends SIB1, or sends SIB1 periodically.

2. The method according to claim 1, characterized in that The first operation is triggered based on a first condition, where the first condition includes one or more of the following: Satisfy the predefined first rule; receiving first indication information, where the first indication information is used to instruct the first terminal device to reselect to the first cell, or the first indication information is used to instruct the first terminal device to perform the first operation; the first indication information is not received or does not exist; receiving configuration information of a first signal or a first channel, where the first signal or the first channel is used to request the first cell to send SIB1, or the first channel or the first channel is used to trigger the first cell to send SIB1; Learning that the first cell is a cell that sends SIB1 based on the request; It is learned that the frequency of the first cell is the frequency of the first target cell, and the first target cell is the cell that sends the SIB1 based on the request; The first cell sends SIB1.

3. The method according to claim 2, wherein: The first indication information is included in the configuration information of the network device; or, The first indication information is included in the configuration information of the second cell; or, The first indication information is included in the configuration information of the first signal or the first channel; or, The first indication information is sent to the first terminal device together with the configuration information of the first signal or the first channel.

4. The method according to claim 2 or 3, characterized in that The first rule includes one or more of the following: The channel quality of the first cell meets a second condition; The frequency priority of the first cell meets a third condition; The state of the first cell satisfies a fourth condition; The first terminal device is a specific terminal device.

5. The method according to claim 4, characterized in that The third condition includes one or more of the following: The frequency priority of the first cell is low; The frequency priority of the first cell is lower than or equal to the frequency priority of the second cell.

6. The method according to claim 4 or 5, characterized in that The fourth condition includes one or more of the following: The first cell is prohibited from access; The first cell is prohibited from accessing for a preset time; The time during which the first cell is prohibited from access does not reach a preset time; The first cell is prohibited from access because the first terminal device cannot obtain SIB1; Access to the first cell is prohibited because the first terminal device does not obtain configuration information of the first channel or the first signal.

7. The method according to any one of claims 4 to 6, characterized in that The specific terminal device includes one or more of the following: Terminal equipment that supports Network Energy Saving (NES); Terminal devices that can request the cell to send SIB1; a terminal device that supports or supports access to the first target cell; The first target cell sends SIB1 based on the request.

8. The method according to any one of claims 2 to 7, characterized in that The method further comprises: If the first indication information indicates that the first terminal device resides in the second cell, the first terminal device continues to reside in the second cell.

9. The method according to any one of claims 2 to 7, characterized in that The method further comprises: If the first condition is not met, the first terminal device continues to reside in the second cell, or continues to reside in the cell corresponding to the frequency of the second cell.

10. The method according to any one of claims 2 to 9, characterized in that The method further comprises: If the frequency priority of the first cell is higher than the frequency priority of the second cell and the first condition is not met, the first terminal device determines or adjusts the frequency priority of the first cell to be low, or the first terminal device determines or adjusts the frequency priority of the first cell to be lower than the frequency priority of the second cell.

11. The method according to claim 10, characterized in that The method further comprises: After the first terminal device determines or adjusts the frequency priority of the first cell to be low, or the first terminal device determines or adjusts the frequency priority of the first cell to be lower than the frequency priority of the second cell, if the first condition is met, the first terminal device performs one of the following operations: Determining or adjusting the frequency priority of the first cell to be the frequency priority configured by the network device; Determining or adjusting the frequency priority of the first cell to be high; Determine or adjust the frequency priority of the first cell to be higher than the frequency priority of the second cell.

12. The method according to any one of claims 1 to 11, characterized in that The first terminal device determines, based on the second information sent by the second cell, that the first cell is a cell that sends SIB1 based on a request.

13. The method according to any one of claims 1 to 12, characterized in that The first process is cell selection. If the first terminal device only stores the frequency of the first cell, or the frequencies stored by the first terminal device include the frequency of the first cell, and the first terminal device learns that the first cell is a cell that sends SIB1 based on a request, the first operation includes one or more of the following: Requesting the first cell to send SIB1; receiving SIB1 sent by the first cell; Reside in the first cell.

14. The method according to any one of claims 1 to 13, characterized in that The first process is cell selection, the first terminal device only stores the frequency of the first cell, or the frequencies stored by the first terminal device include the frequency of the first cell, and the first terminal device learns that the first cell is a cell that sends SIB1 based on a request; Before the first terminal device performs the first operation, and / or before the first terminal device obtains the second information sent by the second cell, and / or the first terminal device does not store or does not store valid second information, the method further includes: The first terminal device performs one or more of the following operations: Searching for the frequency of the first cell; Searching for other frequencies other than the frequency of the first cell; Determining that access to the first cell is prohibited; Reside in the second cell.

15. The method according to claim 12 or 14, characterized in that The second information includes one or more of the following: configuration information of the first signal or the first channel; a cell identifier or a cell list corresponding to the first cell; Cell identification information of the cell requesting to send SIB1; The first signal or the first channel is used to request the first cell to send SIB1, or the first channel or the first channel is used to trigger the first cell to send SIB1.

16. The method according to any one of claims 1 to 15, characterized in that The frequency priority of the second cell is higher than the frequency priority of the first cell.

17. The method according to claim 16, characterized in that The first terminal device resides in the second cell, and the first process is cell reselection. If there are multiple first cells, and at least some of the multiple first cells correspond to different frequencies or different frequency priorities, the first operation includes one of the following: Determining or adjusting the frequency priority of at least part of the first cells to be high; Determining or adjusting the frequency priority of at least part of the first cell to be higher than the frequency priority of the second cell; Determining or adjusting the frequency priority of the second target cell in the at least part of the first cells to be high; Determining or adjusting the frequency priority of the second target cell in the at least part of the first cells to be higher than the frequency priority of the second cell; Determining or adjusting the frequency priorities of at least some of the first cells to be the same; Determining or adjusting the frequency priorities of the multiple first cells to be the same; Determining or adjusting the frequency priorities of the multiple first cells to be high; Determining or adjusting the frequency priority of the multiple first cells to be higher than the frequency priority of the second cell; Determining or adjusting the frequency priority of a second target cell among the multiple first cells to be high; Determine or adjust the frequency priority of the second target cell among the multiple first cells to be higher than the frequency priority of the second cell.

18. The method according to claim 17, characterized in that The second target cell is determined based on one or more of the following: implementation of the first terminal device; an adjustment order of the frequency priorities of the multiple first cells; channel qualities of the multiple first cells; an adjustment order of the frequency priorities of at least part of the first cells; The channel quality of at least part of the first cell.

19. The method according to any one of claims 1 to 18, characterized in that The frequency priority of the first cell is higher than the frequency priority of the second cell.

20. The method according to claim 19, characterized in that If the first terminal device only stores the frequency of the second cell, or the frequencies stored by the first terminal device include the frequency of the second cell and the frequency of the first cell, before performing the first operation, the method further includes: The first terminal device searches for a frequency of the second cell; and / or The first terminal device resides in a cell corresponding to the frequency point of the second cell.

21. The method according to claim 19 or 20, characterized in that The first terminal device resides in the second cell, and the first process is cell reselection. If there are multiple first cells, and at least some of the multiple first cells correspond to different frequencies, the first terminal device reselects to a third target cell among the multiple first cells, and the third target cell is determined based on one or more of the following: The frequency priorities of at least part of the first cells; channel quality of at least part of the first cells; an adjustment order of the frequency priorities of at least part of the first cells; frequency priorities of the multiple first cells; channel qualities of the multiple first cells; implementation of the first terminal device; The adjustment order of the frequency priorities of the multiple first cells.

22. The method according to claim 1, wherein The first process is cell reselection, and before performing the first operation, the first terminal device resides on the second cell.

23. The method according to any one of claims 1 to 22, characterized in that The first terminal device includes one or more of the following: Terminal devices that support NES; Terminal devices that can request the cell to send SIB1; a terminal device that supports or supports access to the first target cell; The first target cell sends SIB1 based on the request.

24. The method according to any one of claims 1 to 23, characterized in that The first cell sends SIB1 based on a request, including: the first cell sends SIB1 based on a request of a terminal device.

25. A communication method, characterized in that: include: The network device sends first indication information to the first terminal device; The first indication information is used to trigger the first terminal device to perform a first operation in a first process, or the first indication information is used to instruct the first terminal device to perform the first operation; The first process includes cell selection or cell reselection; The first operation includes one or more of the following: Determine or adjust the frequency priority of the first cell to be high; Determining or adjusting the frequency priority of the first cell to be higher than the frequency priority of the second cell; Lifting the restriction on prohibiting access to the first cell; Determining that the time for prohibiting access to the first cell reaches a preset time; Reselect to the first cell; Request the first cell to send a system information block SIB1; Send an uplink wake-up signal UL WUS message; Reside in the second cell; The first cell does not send SIB1, or sends SIB1 based on a request; and / or the second cell sends SIB1, or sends SIB1 periodically.

26. The method according to claim 25, characterized in that: The first indication information is included in the configuration information of the network device; or, The first indication information is included in the configuration information of the second cell; or, The first indication information is included in the configuration information of the first signal or the first channel; or, The first indication information is sent to the first terminal device together with the configuration information of the first signal or the first channel.

27. The method according to claim 25 or 26, characterized in that The first indication information is used to indicate that the first terminal device resides in the second cell.

28. The method according to any one of claims 25 to 27, characterized in that The first process is cell reselection, and before performing the first operation, the first terminal device resides on the second cell.

29. The method according to any one of claims 25 to 28, characterized in that The first terminal device includes one or more of the following: Terminal devices that support NES; Terminal devices that can request the cell to send SIB1; a terminal device that supports or supports access to the first target cell; The first target cell sends SIB1 based on the request.

30. A communication device, characterized in that: The communication device is a first terminal device, and the communication device includes: The processing module is configured to perform a first operation in a first process, where the first process includes cell selection or cell reselection, and the first operation includes one or more of the following: Determine or adjust the frequency priority of the first cell to be high; Determining or adjusting the frequency priority of the first cell to be higher than the frequency priority of the second cell; Lifting the restriction on prohibiting access to the first cell; Determining that the time for prohibiting access to the first cell reaches a preset time; Reselect to the first cell; Request the first cell to send a system information block SIB1; Send an uplink wake-up signal UL WUS message; Reside in the second cell; The first cell does not send SIB1, or sends SIB1 based on a request; and / or the second cell sends SIB1, or sends SIB1 periodically.

31. The communication device according to claim 30, wherein: The first operation is triggered based on a first condition, where the first condition includes one or more of the following: Satisfy the predefined first rule; receiving first indication information, where the first indication information is used to instruct the first terminal device to reselect to the first cell, or the first indication information is used to instruct the first terminal device to perform the first operation; the first indication information is not received or does not exist; receiving configuration information of a first signal or a first channel, where the first signal or the first channel is used to request the first cell to send SIB1, or the first channel or the first channel is used to trigger the first cell to send SIB1; Learning that the first cell is a cell that sends SIB1 based on the request; It is learned that the frequency of the first cell is the frequency of the first target cell, and the first target cell is the cell that sends the SIB1 based on the request; The first cell sends SIB1.

32. The communication device according to claim 31, wherein: The first indication information is included in the configuration information of the network device; or, The first indication information is included in the configuration information of the second cell; or, The first indication information is included in the configuration information of the first signal or the first channel; or, The first indication information is sent to the first terminal device together with the configuration information of the first signal or the first channel.

33. The communication device according to claim 31 or 32, characterized in that The first rule includes one or more of the following: The channel quality of the first cell meets a second condition; The frequency priority of the first cell meets a third condition; The state of the first cell satisfies a fourth condition; The first terminal device is a specific terminal device.

34. The communication device according to claim 33, wherein: The third condition includes one or more of the following: The frequency priority of the first cell is low; The frequency priority of the first cell is lower than or equal to the frequency priority of the second cell.

35. The communication device according to claim 33 or 34, characterized in that The fourth condition includes one or more of the following: The first cell is prohibited from access; The first cell is prohibited from accessing for a preset time; The time during which the first cell is prohibited from access does not reach a preset time; The first cell is prohibited from access because the first terminal device cannot obtain SIB1; Access to the first cell is prohibited because the first terminal device does not obtain configuration information of the first channel or the first signal.

36. The communication device according to any one of claims 33 to 35, characterized in that The specific terminal device includes one or more of the following: Terminal equipment that supports Network Energy Saving (NES); Terminal devices that can request the cell to send SIB1; a terminal device that supports or supports access to the first target cell; The first target cell sends SIB1 based on the request.

37. The communication device according to any one of claims 31 to 36, characterized in that The processing module is further configured to: If the first indication information indicates that the first terminal device resides in the second cell, it continues to reside in the second cell.

38. The communication device according to any one of claims 31 to 36, characterized in that The processing module is further configured to: If the first condition is not met, the mobile station continues to reside in the second cell, or continues to reside in the cell corresponding to the frequency of the second cell.

39. The communication device according to any one of claims 31 to 38, characterized in that The processing module is further configured to: If the frequency priority of the first cell is higher than the frequency priority of the second cell and the first condition is not met, determine or adjust the frequency priority of the first cell to be low, or determine or adjust the frequency priority of the first cell to be lower than the frequency priority of the second cell.

40. The communication device according to claim 39, wherein The processing module is further configured to: After determining or adjusting the frequency priority of the first cell to be low, or determining or adjusting the frequency priority of the first cell to be lower than the frequency priority of the second cell, if the first condition is met, performing one of the following operations: Determining or adjusting the frequency priority of the first cell to be the frequency priority configured by the network device; Determining or adjusting the frequency priority of the first cell to be high; Determine or adjust the frequency priority of the first cell to be higher than the frequency priority of the second cell.

41. The communication device according to any one of claims 30 to 40, characterized in that The first terminal device determines, based on the second information sent by the second cell, that the first cell is a cell that sends SIB1 based on a request.

42. The communication device according to any one of claims 30 to 41, characterized in that The first process is cell selection. If the first terminal device only stores the frequency of the first cell, or the frequencies stored by the first terminal device include the frequency of the first cell, and the first terminal device learns that the first cell is a cell that sends SIB1 based on a request, the first operation includes one or more of the following: Requesting the first cell to send SIB1; receiving SIB1 sent by the first cell; Reside in the first cell.

43. The communication device according to any one of claims 30 to 42, characterized in that The first process is cell selection, the first terminal device only stores the frequency of the first cell, or the frequencies stored by the first terminal device include the frequency of the first cell, and the first terminal device learns that the first cell is a cell that sends SIB1 based on a request; Before the first terminal device performs the first operation, and / or before the first terminal device obtains the second information sent by the second cell, and / or the first terminal device does not store or does not store valid second information, the processing module is further configured to perform one or more of the following operations: Searching for the frequency of the first cell; Searching for other frequencies other than the frequency of the first cell; Determining that access to the first cell is prohibited; Reside in the second cell.

44. The communication device according to claim 41 or 43, characterized in that The second information includes one or more of the following: configuration information of the first signal or the first channel; a cell identifier or a cell list corresponding to the first cell; Cell identification information of the cell requesting to send SIB1; The first signal or the first channel is used to request the first cell to send SIB1, or the first channel or the first channel is used to trigger the first cell to send SIB1.

45. The communication device according to any one of claims 30 to 44, characterized in that The frequency priority of the second cell is higher than the frequency priority of the first cell.

46. ​​The communication device according to claim 45, characterized in that The first terminal device resides in the second cell, and the first process is cell reselection. If there are multiple first cells, and at least some of the multiple first cells correspond to different frequencies or different frequency priorities, the first operation includes one of the following: Determining or adjusting the frequency priority of at least part of the first cells to be high; Determining or adjusting the frequency priority of at least part of the first cell to be higher than the frequency priority of the second cell; Determining or adjusting the frequency priority of the second target cell in the at least part of the first cells to be high; Determining or adjusting the frequency priority of the second target cell in the at least part of the first cells to be higher than the frequency priority of the second cell; Determining or adjusting the frequency priorities of at least some of the first cells to be the same; Determining or adjusting the frequency priorities of the multiple first cells to be the same; Determining or adjusting the frequency priorities of the multiple first cells to be high; Determining or adjusting the frequency priority of the multiple first cells to be higher than the frequency priority of the second cell; Determining or adjusting the frequency priority of a second target cell among the multiple first cells to be high; Determine or adjust the frequency priority of the second target cell among the multiple first cells to be higher than the frequency priority of the second cell.

47. The communication device according to claim 46, characterized in that The second target cell is determined based on one or more of the following: implementation of the first terminal device; an adjustment order of the frequency priorities of the multiple first cells; channel qualities of the multiple first cells; an adjustment order of the frequency priorities of at least part of the first cells; The channel quality of at least part of the first cell.

48. The communication device according to any one of claims 30 to 47, characterized in that The frequency priority of the first cell is higher than the frequency priority of the second cell.

49. The communication device according to claim 48, characterized in that If the first terminal device only stores the frequency of the second cell, or the frequency stored by the first terminal device includes the frequency of the second cell and the frequency of the first cell, the processing module is also used to: search for the frequency of the second cell before performing the first operation; and / or reside in the cell corresponding to the frequency of the second cell.

50. The communication device according to claim 48 or 49, characterized in that The first terminal device resides in the second cell, and the first process is cell reselection. If there are multiple first cells, and at least some of the multiple first cells correspond to different frequencies, the first terminal device reselects to a third target cell among the multiple first cells, and the third target cell is determined based on one or more of the following: The frequency priorities of at least part of the first cells; channel quality of at least part of the first cells; an adjustment order of the frequency priorities of at least part of the first cells; frequency priorities of the multiple first cells; channel qualities of the multiple first cells; implementation of the first terminal device; The adjustment order of the frequency priorities of the multiple first cells.

51. The communication device according to claim 30, wherein: The first process is cell reselection, and before performing the first operation, the first terminal device resides on the second cell.

52. The communication device according to any one of claims 30 to 51, characterized in that The first terminal device includes one or more of the following: Terminal devices that support NES; Terminal devices that can request the cell to send SIB1; a terminal device that supports or supports access to the first target cell; The first target cell sends SIB1 based on the request.

53. The communication device according to any one of claims 30 to 52, characterized in that The first cell sends SIB1 based on a request, including: the first cell sends SIB1 based on a request of a terminal device.

54. A communication device, characterized in that The communication device is a network device, and the communication device includes: A communication module, configured to send first indication information to a first terminal device; The first indication information is used to trigger the first terminal device to perform a first operation in a first process, or the first indication information is used to instruct the first terminal device to perform the first operation; The first process includes cell selection or cell reselection; The first operation includes one or more of the following: Determine or adjust the frequency priority of the first cell to be high; Determining or adjusting the frequency priority of the first cell to be higher than the frequency priority of the second cell; Lifting the restriction on prohibiting access to the first cell; Determining that the time for prohibiting access to the first cell reaches a preset time; Reselect to the first cell; Request the first cell to send a system information block SIB1; Send an uplink wake-up signal UL WUS message; Reside in the second cell; The first cell does not send SIB1, or sends SIB1 based on a request; and / or the second cell sends SIB1, or sends SIB1 periodically.

55. The communication device according to claim 54, characterized in that: The first indication information is included in the configuration information of the network device; or, The first indication information is included in the configuration information of the second cell; or, The first indication information is included in the configuration information of the first signal or the first channel; or, The first indication information is sent to the first terminal device together with the configuration information of the first signal or the first channel.

56. The communication device according to claim 54 or 55, characterized in that The first indication information is used to indicate that the first terminal device resides in the second cell.

57. The communication device according to any one of claims 54 to 56, characterized in that The first process is cell reselection, and before performing the first operation, the first terminal device resides on the second cell.

58. The communication device according to any one of claims 54 to 57, characterized in that The first terminal device includes one or more of the following: Terminal devices that support NES; Terminal devices that can request the cell to send SIB1; a terminal device that supports or supports access to the first target cell; The first target cell sends SIB1 based on the request.

59. A communication device, characterized in that The system comprises a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory to execute the method according to any one of claims 1 to 29.

60. A chip, characterized in that: The device comprises a processor configured to call a program from a memory so that a device equipped with the chip executes the method according to any one of claims 1 to 29.

61. A computer-readable storage medium, characterized in that A program is stored thereon, the program causing a computer to execute the method according to any one of claims 1 to 29.

62. A computer program product, characterized in that A program is included, the program causing a computer to execute the method according to any one of claims 1 to 29.

63. A computer program, characterized in that The computer program causes a computer to execute the method according to any one of claims 1 to 29.

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