Cell selection strategy configuration method, device, equipment, storage medium and program product

Abstract

The invention discloses a cell selection strategy configuration method and device, equipment, a storage medium and a program product, relates to the technical field of communication, and is used for avoiding triggering RedCap terminal equipment to perform cell selection on cells which do not support RedCap. The method is applied to terminal equipment and comprises the following steps: receiving a configuration message from a base station; the configuration message comprises a cell selection strategy; the terminal device is a capability reduction RedCap terminal device and / or an enhanced capability reduction eRedCap terminal device; the cell selection strategy is used for limiting the terminal equipment to access the target cell; the target cell is a cell which does not support RedCap and / or eRedCap. The method and the device are applied to a scene for configuring the cell selection strategy.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a method, device, equipment, storage medium and program product for configuring a cell selection strategy. Background Art

[0002] Reduced capability (also known as lightweight) (RedCap) is a low-cost, low-speed fifth-generation mobile communication technology (5G) technology. Currently, RedCap terminal devices can access fourth-generation mobile communication technology (4G) cells, and can also access 5G cells that support RedCap, but cannot access 5G cells that do not support RedCap.

[0003] However, when a RedCap terminal device moves to the boundary area between a 4G cell and a 5G cell that does not support RedCap, the RedCap terminal device will be triggered to perform cell measurement and selection (reselection or switching). Since the RedCap terminal device cannot access a 5G cell that does not support RedCap, the RedCap terminal device will be triggered to perform cell selection, which will affect the service continuity of the RedCap terminal device. Summary of the invention

[0004] The present application provides a cell selection strategy configuration method, apparatus, equipment, storage medium and program product, which are used to solve the technical problem that when a RedCap terminal device moves to the boundary area of ​​a 5G cell that does not support RedCap, it will trigger the RedCap terminal device to perform cell selection, resulting in affecting the service continuity of the RedCap terminal device.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] In a first aspect, a cell selection strategy configuration method is provided, which is applied to a terminal device, and the method includes: receiving a configuration message from a base station; the configuration message includes a cell selection strategy; the terminal device is a reduced-capability RedCap terminal device and / or an enhanced reduced-capability eRedCap terminal device; the cell selection strategy is used to restrict the terminal device from accessing a target cell; the target cell is a cell that does not support RedCap and / or eRedCap.

[0007] In a possible implementation manner, the cell selection strategy is configured by a network management system of the base station and / or a core network device.

[0008] In one possible implementation, the cell selection strategy is used to indicate the access priority of multiple frequency bands; the multiple frequency bands include the frequency band of the target cell; the access priority of the frequency band of the target cell is lower than the access priority of other frequency bands; the other frequency bands are frequency bands other than the frequency band of the target cell among the multiple frequency bands; or, the cell selection strategy is used to indicate cell information for which terminal equipment is prohibited from switching or reselecting; the cell information includes the target cell; or, the cell selection strategy is used to indicate area information of an access-allowed area and / or an access-not allowed area; the target cell is located in an access-not allowed area.

[0009] In a possible implementation, before receiving the configuration message from the base station, the method further includes: sending a terminal device capability message to the base station; the terminal device capability message includes a target field; the target field is used to represent the capability information of the terminal device.

[0010] In a possible implementation, the target field is carried in the capability information of the terminal device in the form of a container character string under different network standards.

[0011] In one possible implementation, the target field is a RedCap capability field and / or an eRedCap capability field.

[0012] In a possible implementation manner, the method further includes: receiving a terminal device capability query message from a base station; the terminal device capability query message is used to instruct the terminal device to report the terminal capability.

[0013] In a possible implementation, the terminal device capability query message includes a RedCap capability acquisition field and / or an eRedCap capability acquisition field.

[0014] In a possible implementation, the cell accessed by the terminal device is a 4G cell of the fourth generation mobile communication system.

[0015] In a possible implementation, the terminal device capability message is parsed by a base station or a core network device.

[0016] In the second aspect, a cell selection strategy configuration method is provided, which is applied to a base station, and the method includes: sending a configuration message to a terminal device; the configuration message includes a cell selection strategy; the terminal device is a reduced-capability RedCap terminal device and / or an enhanced reduced-capability eRedCap terminal device; the cell selection strategy is used to restrict the terminal device from accessing a target cell; the target cell is a cell that does not support RedCap and / or eRedCap.

[0017] In a possible implementation manner, before sending the configuration message to the terminal device, the method further includes: configuring a cell selection strategy through a network management system.

[0018] In a possible implementation, before sending a configuration message to the terminal device, the method further includes: receiving a terminal device capability message from the terminal device; the terminal device capability message includes a target field; and the target field is used to represent capability information of the terminal device.

[0019] In a possible implementation manner, the method further includes: sending a terminal device capability query message to the terminal device; the terminal device capability query message is used to instruct the terminal device to report the terminal capability.

[0020] According to a third aspect, a cell selection strategy configuration device is provided, and the cell selection strategy configuration device includes: a receiving unit; a receiving unit for receiving a configuration message from a base station; the configuration message includes a cell selection strategy; the terminal device is a reduced-capability RedCap terminal device and / or an enhanced reduced-capability eRedCap terminal device; the cell selection strategy is used to restrict the terminal device from accessing a target cell; the target cell is a cell that does not support RedCap and / or eRedCap.

[0021] In a possible implementation manner, the cell selection strategy is configured by a network management system of the base station and / or a core network device.

[0022] In one possible implementation, the cell selection strategy is used to indicate the access priority of the frequency band of each cell among multiple cells; the multiple cells include a target cell; the access priority of the frequency band of the target cell is lower than the access priority of the frequency bands of other cells; the other cells are cells other than the target cell among the multiple cells; or, the cell selection strategy is used to indicate cell information for prohibiting terminal equipment from switching or reselecting; the cell information includes the target cell; or, the cell selection strategy is used to indicate area information of an access-allowed area and / or an access-not allowed area; the target cell is located in an access-not allowed area.

[0023] In a possible implementation, the cell selection strategy configuration device further includes: a sending unit; the sending unit is used to send a terminal device capability message to the base station; the terminal device capability message includes a target field; the target field is used to represent the capability information of the terminal device.

[0024] In a possible implementation, the target field is carried in the capability information of the terminal device in the form of a container character string under different network standards.

[0025] In one possible implementation, the target field is a RedCap capability field and / or an eRedCap capability field.

[0026] In a possible implementation, the receiving unit is further used to receive a terminal device capability query message from the base station; the terminal device capability query message is used to instruct the terminal device to report the terminal capability.

[0027] In a possible implementation, the terminal device capability query message includes a RedCap capability acquisition field and / or an eRedCap capability acquisition field.

[0028] In a possible implementation, the cell accessed by the terminal device is a 4G cell of the fourth generation mobile communication system.

[0029] In a possible implementation, the terminal device capability message is parsed by a base station or a core network device.

[0030] In a fourth aspect, a cell selection strategy configuration device is provided, and the cell selection strategy configuration device includes: a sending unit; a sending unit for sending a configuration message to a terminal device; the configuration message includes a cell selection policy; the terminal device is a reduced-capability RedCap terminal device and / or an enhanced reduced-capability eRedCap terminal device; the cell selection policy is used to restrict the terminal device from accessing a target cell; the target cell is a cell that does not support RedCap and / or eRedCap.

[0031] In a possible implementation, the cell selection policy configuration device further includes: a processing unit; the processing unit is configured to configure the cell selection policy through a network management system.

[0032] In a possible implementation, the cell selection strategy configuration device further includes: a receiving unit; the receiving unit is used to receive a terminal device capability message from the terminal device; the terminal device capability message includes a target field; the target field is used to represent the capability information of the terminal device.

[0033] In a possible implementation, the sending unit is further used to send a terminal device capability query message to the terminal device; the terminal device capability query message is used to instruct the terminal device to report the terminal capability.

[0034] In a fifth aspect, an electronic device comprises: a processor and a memory; wherein the memory is used to store one or more programs, and the one or more programs include computer execution instructions. When the electronic device is running, the processor executes the computer execution instructions stored in the memory to enable the electronic device to execute a cell selection strategy configuration method as in the first aspect.

[0035] In a sixth aspect, a computer-readable storage medium storing one or more programs is provided, wherein the one or more programs include instructions, and when the instructions are executed by a computer, the computer executes a cell selection strategy configuration method as in the first aspect.

[0036] In a seventh aspect, a computer program product is provided. When the computer instructions are executed on an electronic device, the electronic device executes a cell selection strategy configuration method as in the first aspect.

[0037] The present application provides a method, apparatus, device, storage medium and program product for configuring a cell selection strategy, which are applied to the scenario of configuring a cell selection strategy. When the cell selection strategy needs to be configured, the RedCap terminal device and / or the eRedCap terminal device can receive a configuration message including the cell selection strategy from the base station. The cell selection strategy is used to restrict the corresponding terminal device from accessing cells that do not support RedCap. That is, after informing the RedCap terminal device and / or the eRedCap terminal device that the cell does not support RedCap and / or eRedCap, the terminal device can avoid triggering reselection or switching for the cell after detecting the corresponding cell. In this way, the problem in the related art that the RedCap terminal device and / or the eRedCap terminal device will trigger reselection or switching for the cell when detecting a cell that does not support RedCap can be solved.

[0038] Through the above method, the RedCap terminal device and / or the eRedCap terminal device can receive information about cells that do not support RedCap and / or eRedCap from the base station to restrict the corresponding terminal device from accessing cells that do not support RedCap and / or eRedCap. Thus, the technical problem that when the RedCap terminal device moves to the border area of ​​the 5G cell that does not support RedCap, it will trigger the RedCap terminal device to perform cell selection, resulting in affecting the service continuity of the RedCap terminal device is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A schematic diagram of the structure of a cell selection strategy configuration system provided in an embodiment of the present application;

[0040] Figure 2 A schematic diagram of a cell selection strategy configuration method provided in an embodiment of the present application Figure 1 ;

[0041] Figure 3 A schematic diagram of a terminal device located in a border area provided in an embodiment of the present application;

[0042] Figure 4 A schematic diagram of a cell selection strategy configuration method provided in an embodiment of the present application Figure 2 ;

[0043] Figure 5 A schematic diagram of a cell selection strategy configuration method provided in an embodiment of the present application Figure 3 ;

[0044] Figure 6 A schematic diagram of a cell selection strategy configuration method provided in an embodiment of the present application Figure 4 ;

[0045] Figure 7 A schematic diagram of a cell selection strategy configuration device provided in an embodiment of the present application Figure 1 ;

[0046] Figure 8 A schematic diagram of a cell selection strategy configuration device provided in an embodiment of the present application Figure 2 ;

[0047] Fig. 9 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0049] In the description of this application, unless otherwise specified, " / " means "or", for example, A / B can mean A or B. "And / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, "at least one" and "plurality" refer to two or more. The words "first", "second", etc. do not limit the quantity and execution order, and the words "first", "second", etc. do not limit them to be different.

[0050] RedCap is a low-cost, low-rate 5G technology based on 5G commercial networks. Through software upgrades, it can support the access and networking of 5G terminal devices and 5G RedCap terminal devices at the same time. Currently, RedCap terminal devices support both 4G and 5G RedCap networks, that is, RedCap terminal devices can access 4G networks or 5G networks that support RedCap.

[0051] In the early stage of RedCap deployment, the network construction investment cost of enabling the RedCap function in all frequency bands of the existing 5G network is relatively high. Therefore, operators usually consider the deployment scenario of enabling the RedCap function on demand in the existing 5G network. Enabling the RedCap function on demand can ensure the continuity of the RedCap network within a certain 5G coverage area. At the boundary of the 5G network, there are boundary areas of different systems and the same system. The first boundary area is the boundary area between the 4G network and the 5G network that has not opened (that is, does not support) RedCap. The second boundary area is the boundary area between the 4G network and the 5G network that has opened RedCap. The third boundary area is the boundary between the 5G network that has not opened RedCap and the 5G network that has opened RedCap in the 5G system.

[0052] For the first and third boundary areas, if a RedCap dual-mode terminal device (also referred to as a RedCap terminal device) is accessed in a 4G cell or a 5G cell with RedCap enabled, the RedCap dual-mode terminal device will report the terminal capabilities through the corresponding 4G network or 5G network. When the RedCap dual-mode terminal device moves to a 5G neighboring cell that has not enabled RedCap, there is a ping-pong switching problem. That is, because the 5G neighboring cell does not support RedCap, the RedCap dual-mode terminal device cannot switch or reselect to the 5G neighboring cell, and will return to the 4G cell or the 5G cell with RedCap enabled, affecting the business continuity of the RedCap terminal device. In addition, the switching or reselection process may be repeatedly triggered, further affecting the business continuity of the RedCap terminal device and increasing the power consumption of the terminal device.

[0053] The main reason for the above problem is: in the process of switching or reselecting from a 4G cell or a 5G cell with RedCap enabled to a 5G cell without RedCap enabled, the RedCap terminal device first reads the system information block 1 (SIB1) message of the adjacent 5G cell, and identifies that the 5G cell does not support RedCap based on the SIB1 message, resulting in the failure of the RedCap terminal device to redirect, and return to the 4G cell or the 5G cell with RedCap enabled to re-access. In addition, the above process may be triggered repeatedly. To address this problem, the solution in the related art is for the RedCap terminal device to turn on the protection mechanism / penalty mechanism, and use a timer to set the time length so that the RedCap terminal device does not measure or report the corresponding 5G cell measurement report for a period of time after the redirection fails, thereby avoiding repeated redirection failures.

[0054] However, when the protection mechanism / penalty mechanism is turned on in the RedCap terminal device, there are the following disadvantages: 1. If the protection / penalty mechanism fails, the RedCap terminal device will re-trigger the measurement and reselection or switching process, and cannot fundamentally solve the problem of different system boundaries. 2. The condition for turning on the protection / penalty mechanism is that the RedCap terminal device has a redirection failure from the 4G cell or the 5G cell with RedCap enabled to the 5G neighboring cell without RedCap enabled. Then, if the RedCap terminal device accesses the new 4G cell or the 5G cell with RedCap enabled, or the timer exceeds the set time, the measurement and reselection or switching process will be re-triggered, and the redirection failure will occur again, which will affect the key performance indicators (KPI) of the operator's network. 3. The duration of the protection mechanism / penalty mechanism needs to be set by the operator, and there is no reference value for its value. The user experience of the RedCap terminal device may be affected due to unreasonable configuration of the duration. Therefore, the relevant technology cannot completely solve the problem of the failure of the RedCap terminal device to switch or reselect from the 4G cell or the 5G cell with RedCap enabled to the 5G cell without RedCap enabled.

[0055] The essential reason for the above problems is that the RedCap terminal device is accessed to the 4G network in 4G terminal mode, and the 4G network is supported to obtain the ability of the 5G terminal device, but there is no detailed definition on how to obtain the RedCap capability. In addition, after obtaining the RedCap capability of the terminal device, the RedCap terminal device should be prevented from switching to a 5G cell that has not activated RedCap, and a corresponding solution is also required. In order to solve the problem of repeated switching or reselection failures of RedCap terminal devices when moving from a 4G cell or a 5G cell with RedCap activated to a 5G cell without RedCap activated, the present application provides a cell selection strategy configuration method, which obtains the RedCap capability of the terminal device and configures the cell selection strategy for the RedCap terminal device to avoid the problem of switching or reselection failures.

[0056] A cell selection strategy configuration method provided in an embodiment of the present application may be applicable to a cell selection strategy configuration system. Figure 1 FIG. 2 shows a schematic diagram of the structure of a cell selection strategy configuration system. Figure 1 As shown, the cell selection strategy configuration system 10 includes: a terminal device 11, a base station 12 and a core network device (also referred to as a core network element) 13.

[0057] The terminal device 11 is connected to the base station 12, and the base station 12 is connected to the core network device 13. The terminal device 11, the base station 12 and the core network device 13 may be connected in a wired manner or in a wireless manner, which is not limited in the embodiment of the present invention.

[0058] It should be noted that Figure 1 The solution proposed in this application is introduced by taking a terminal device 11 and a base station 12 as an example. This application does not limit the number of terminal devices 11 and base stations 12 involved.

[0059] The terminal device 11 is used to receive a terminal device capability query message sent by the base station 12, return a terminal device capability message to the base station 12, and when the terminal device 11 is a RedCap terminal device and / or an eRedCap terminal device, receive a configuration message including a cell selection strategy sent by the base station 12, and perform cell selection based on the cell selection strategy included in the configuration message.

[0060] The base station 12 sends a terminal device capability query message to the terminal device 11, receives a terminal device capability message returned by the terminal device 11, determines whether the terminal device 11 is a RedCap terminal device and / or an eRedCap terminal device by parsing the terminal device capability message, and after determining that the terminal device 11 is a RedCap terminal device and / or an eRedCap terminal device, configures a cell selection strategy through the network management system, and sends a configuration message including the cell selection strategy to the terminal device 11.

[0061] The core network device 13 is used to send a terminal device capability information request to the base station 12, so as to send a terminal device capability query message to the terminal device 11 through the base station 12, and to receive the signaling including the terminal device capability message through the base station 12 to parse the terminal device capability message to determine whether the terminal device 11 is a RedCap terminal device and / or an eRedCap terminal device, and after determining that the terminal device 11 is a RedCap terminal device and / or an eRedCap terminal device, configure the cell selection strategy, and send a configuration message including the cell selection strategy to the terminal device 11 through the base station.

[0062] Exemplarily, the terminal device 11 can be an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal device can also be called a terminal device (terminal), a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc. The terminal device can be a RedCap terminal device (i.e., a terminal device supporting the RedCap function), an eRedCap terminal device (i.e., a terminal device supporting the eRedCap function), a car with communication function, a smart car, a wearable device, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, etc. The embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal device.

[0063] The base station 12 may be a base station or an evolutionary base station (eNB or eNodeB) in long term evolution (LTE) or long term evolution advanced (LTEA) (i.e., a base station in a 4G network), a base station device (gNB) in a 5G network, a base station in a 2G network, a base station in a 3G network, or a base station in a future communication system, etc. The base station may include various macro base stations, micro base stations, home base stations, wireless remotes, reconfigurable intelligent surfaces (RISs), routers, relay stations, transmission and reception points (TRP), receivers, access points, wireless fidelity (WIFI) devices, and other network-side devices. The base station may also sometimes be referred to as a reader / writer for communicating with a terminal.

[0064] The core network device 13 may be a mobility management entity (MME) network element in the core network.

[0065] The following describes a cell selection strategy configuration method provided by an embodiment of the present application in conjunction with the accompanying drawings. Figure 2 As shown, an embodiment of the present application provides a method for configuring a cell selection strategy, the method comprising S201:

[0066] S201, a base station sends a configuration message to a terminal device. Correspondingly, the terminal device receives the configuration message from the base station.

[0067] Among them, the configuration message includes a cell selection strategy; the terminal device is a reduced-capability RedCap terminal device and / or an enhanced reduced-capability eRedCap terminal device; the cell selection strategy is used to restrict the terminal device from accessing the target cell; the target cell is a cell that does not support RedCap and / or eRedCap.

[0068] In a possible implementation, the cell accessed by the terminal device is a 4G cell.

[0069] Optionally, the configuration message sent by the base station to the terminal device may be a configuration message from the core network (i.e., the configuration message may be configured by the core network), or may be a configuration message sent by the base station to the terminal device itself (i.e., the configuration message may also be configured by the operator's network management system). That is, when the core network device sends a configuration message to the terminal device, the configuration message needs to be forwarded to the terminal device via the base station. Further, the terminal device may receive a configuration message from the base station. The base station may be a base station to which the cell currently accessed by the terminal device belongs, and the cell currently accessed by the terminal device may be a 4G cell, or a 5G cell supporting RedCap and / or supporting eRedCap. The target cell may be a 5G cell adjacent to the cell currently accessed by the terminal device, so that the terminal device is likely to move to the boundary area of ​​the 5G cell and detect the signal of the 5G cell. Further, when the terminal device detects the signal of the 5G cell, it may determine not to execute the switching or reselection process according to the cell selection strategy, thereby avoiding the failure of switching or reselection. The cell selection strategy only includes information about adjacent cells, which can reduce the data packet size of the configuration message, reduce the transmission pressure, and reduce the pressure on the terminal device to process and parse the information included in the cell selection strategy.

[0070] For example, Figure 3As shown, the RedCap terminal device is currently connected to the base station of the 4G cell. When the RedCap terminal device moves to the boundary area between the 4G cell and the 5G cell, when the RedCap terminal device detects the signal of the 5G cell, it can be known according to the cell selection strategy that the adjacent 5G cell does not support RedCap, and thus the switching or reselection process is not performed. Figure 3 This is only an example and is not limited to this application.

[0071] It should be noted that if the terminal device is a RedCap terminal device, the target cell needs to be a cell that does not support RedCap. If the terminal device is an eRedCap terminal device, the target cell needs to be a cell that does not support eRedCap.

[0072] The present application uses a cell selection strategy to make RedCap terminal devices and / or eRedCap terminal devices aware of cells that do not support RedCap and / or eRedCap. In this way, the terminal device can avoid triggering reselection or switching for the cell after detecting the corresponding cell. In this way, the problem in the related art that when RedCap terminal devices and / or eRedCap terminal devices detect a cell that does not support RedCap, they will trigger reselection or switching for the cell, thereby avoiding switching or reselection failures, ensuring business continuity of RedCap terminal devices, and reducing power consumption of terminal devices.

[0073] In one design, Figure 4 As shown, a cell selection strategy configuration method provided in an embodiment of the present application, before the above step S201, the method further includes S301:

[0074] S301. The base station configures a cell selection strategy through a network management system, and / or a core network device configures a cell selection strategy.

[0075] Optionally, the network management system of the base station usually stores detailed information of all cells under the base station and all cells under base stations adjacent to the base station. This information includes whether the cell has activated the RedCap and / or eRedCap function, and the activation of the RedCap and / or eRedCap functions in certain specific areas and specific frequency bands. In this way, the network management system of the base station can configure the cell selection strategy according to the detailed information of all cells under the base station and all cells under base stations adjacent to the base station when the terminal device is a RedCap terminal device and / or an eRedCap terminal device. Furthermore, the base station can send configuration information including the cell selection strategy to the terminal device.

[0076] The core network device usually stores information about areas where the RedCap and / or eRedCap functions are enabled, and information about areas where the RedCap and / or eRedCap functions are not enabled. In this way, when the terminal device is a RedCap terminal device and / or an eRedCap terminal device, the core network device can configure the cell selection strategy based on the information about areas where the RedCap and / or eRedCap functions are enabled, and information about areas where the RedCap and / or eRedCap functions are not enabled. Furthermore, the core network device can send configuration information including the cell selection strategy to the base station, so that the base station forwards the information to the terminal device.

[0077] The present application can configure the cell selection strategy through the network management system of the base station and the core network equipment, thereby improving the flexibility of the cell selection strategy configuration.

[0078] In one possible implementation, the cell selection strategy is used to indicate the access priority of multiple frequency bands; the multiple frequency bands include the frequency band of the target cell; the access priority of the frequency band of the target cell is lower than the access priority of other frequency bands; the other frequency bands are frequency bands other than the frequency band of the target cell among the multiple frequency bands; or, the cell selection strategy is used to indicate cell information for which terminal equipment is prohibited from switching or reselecting; the cell information includes the target cell; or, the cell selection strategy is used to indicate area information of an access-allowed area and / or an access-not allowed area; the target cell is located in an access-not allowed area.

[0079] Optionally, the cell selection strategy may be an adjusted mobility priority list. That is, under normal circumstances, multiple frequency bands can be detected in the area where the terminal device is located, and the mobility priority list of the 5G network may include access priorities of multiple frequency bands. Among them, the access priorities of multiple frequency bands may be configured by the operator according to the coverage and network load of different frequency bands. In the adjusted priority list, the access priority of the frequency band of the cell that does not support RedCap and / or eRedCap is set lower than the access priority of other frequency bands.

[0080] When the terminal device is a RedCap terminal device and / or an eRedCap terminal device, the base station sends a mobility priority list applicable to the RedCap terminal and / or the eRedCap terminal device, which can be different from the mobility priority list of the common terminal (i.e., non-RedCap terminal device or non-eRedCap terminal device). This can prevent the terminal device from accessing a cell that does not support RedCap and / or eRedCap, thereby avoiding the terminal device from switching or reselecting.

[0081] Exemplarily, it is assumed that the area where the terminal device is located can detect the frequency bands of cell A, cell B, and cell C. The frequency band of cell A is 2.1 GHz. The frequency band of cell B is 3.5 GHz. The frequency band of cell C is 900 MHz. The order of access priority from high to low in the mobility priority list of the 5G network is, 3.5 GHz, 2.1 GHz, 900 MHz. In this area, RedCap / eRedCap is enabled for the 2.1 GHz frequency band, and RedCap / eRedCap is not enabled for the 3.5 GH and 900 MHz frequency bands. The order of access priority from high to low in the adjusted mobility priority list is 2.1 GHz, 3.5 GHz, 900 MHz.

[0082] It should be noted that one cell corresponds to one frequency band, and one base station corresponds to multiple cells.

[0083] Optionally, the cell information may be a cell identifier, such as cell C that does not support RedCap. The present application may issue information of a cell that does not support RedCap to the terminal device, prohibiting the terminal device from switching or reselecting the cell, thereby preventing the terminal device from triggering switching or reselecting the cell that does not support RedCap.

[0084] When the terminal device is a RedCap terminal device and / or an eRedCap terminal device, the network management system of the base station may configure a cell selection policy for indicating cell information forbidding the terminal device from switching or reselecting.

[0085] Optionally, the area information may be an area identifier (e.g., area A). The cell selection strategy may be a mobility restriction list. The mobility restriction list includes area information of an allowed area (i.e., an access allowed area in this application) in the service area restrictions (Service Area Restrictions) and / or area information of a non-allowed area (i.e., an access not allowed area in this application). The target cell is not located in the access allowed area. The present application may avoid the terminal device triggering a switch or reselection of a cell that does not support RedCap by issuing to the terminal device area information of an access allowed area (which does not include cells that do not support RedCap) and / or an access not allowed area (which includes cells that do not support RedCap).

[0086] When the terminal device is a RedCap terminal device and / or an eRedCap terminal device, the core network device may configure a cell selection strategy for indicating area information of an access-allowed area and / or an access-not-allowed area.

[0087] It should be noted that service area restriction means that in the 5G network, it defines which areas the terminal devices can communicate with the network and which areas the terminal devices cannot communicate with the network. The terminal devices in the allowed area are allowed to communicate with the network normally. The terminal devices in the not allowed area are not allowed to communicate with the network normally and cannot trigger network selection or cell reselection.

[0088] The unallowed area specified in the related art is consistent with the tracking area identity (TA) area range, that is, reselection is restricted to a specific TA area. The TA area is mainly used to track the location of terminal devices in the communication network. In the LTE network, the configuration unit in the mobility restriction list is the TA area, which supports the mobility management of terminal devices, such as reselection, and is used to paging user equipment.

[0089] Optionally, the disallowed area may be configured according to the cell, for example, the disallowed area is cell C, so that refined configuration of the neighboring cells can be achieved.

[0090] In one design, Figure 5 As shown, a cell selection strategy configuration method provided in an embodiment of the present application, before the above step S201, the method further includes S401:

[0091] S401: The terminal device sends a terminal device capability message to the base station. Correspondingly, the base station receives the terminal device capability message from the terminal device.

[0092] Among them, the terminal device capability message includes a target field; the target field is used to represent the capability information of the terminal device.

[0093] Optionally, the capability information of the terminal device may include processor performance, storage capacity, operating system, network access mode, whether RedCap is supported, whether eRedCap is supported, etc. In this way, the base station can parse the terminal device capability message to determine whether the terminal device is a RedCap terminal device and / or an eRedCap terminal device, so as to facilitate the subsequent configuration of the cell selection strategy when the terminal device is a RedCap terminal device and / or an eRedCap terminal device, and avoid the terminal device triggering a handover or reselection failure.

[0094] In a possible implementation, the target field is carried in the capability information of the terminal device in the form of a container character string under different network standards.

[0095] Optionally, the target field can be reported in the form of a container, that is, the terminal device capability message is the capability information of the terminal device in the form of a container string under different network standards, including the radio access technology type (RAT-type) (i.e., network standard) and the container string. In this way, it is possible to determine whether the terminal device is a RedCap terminal device and / or an eRedCap terminal device based on the terminal device capability message, which facilitates the subsequent configuration of the cell selection strategy when the terminal device is a RedCap terminal device and / or an eRedCap terminal device, and avoids the terminal device triggering a switch or reselection failure.

[0096] For example, the capability information of the terminal device in the form of a container string under different network standards may be UE-Capability RAT-Container List IE. UE-Capability RAT-Container List IE is used to transmit the capability information of the terminal device and includes multiple parameters for describing the capabilities of the terminal.

[0097] Exemplarily, the data structure of the current UE-Capability RAT-Container List IE is as follows:

[0098] UE-CapabilityRAT-ContainerList IE

[0099] --ASN1START (data structure start marker)

[0100] --TAG-UE-CAPABILITYRAT-CONTAINERLIST-START

[0101] UE-CapabilityRAT-ContainerList::=

[0102] SEQUENCE(SIZE(0..maxRAT-CapabilityContainers))OF UE-CapabilityRAT-Container

[0103] UE-CapabilityRAT-Container::=

[0104] SEQUENCE{

[0105] rat-Type

[0106] RAT-Type,

[0107] ue-CapabilityRAT-Container

[0108] OCTET STRING

[0109] }

[0110] --TAG-UE-CAPABILITYRAT-CONTAINERLIST-STOP

[0111] --ASN1STOP (data structure end marker)

[0112] It should be noted that, from the above data structure, the UE-Capability RAT-Container List IE can report the capabilities of the terminal device in the form of a Container string, and can distinguish different network standards. The capabilities of the terminal device include the RedCap capabilities and / or eRedCap capabilities of the terminal device, so that the base station can parse the UE-Capability RAT-Container List IE to know whether the terminal device has RedCap capabilities and / or eRedCap capabilities.

[0113] Optionally, the base station can parse the terminal device capability message reported by the container. When parsing at the base station, the base station needs to support parsing the terminal device capability container list reported by the terminal device, parsing the terminal device capabilities corresponding to the NR RAT (5G NR standard), and extracting RedCap and / or eRedCap capability information.

[0114] The present application can parse the terminal device capability message reported by means of a container by means of a base station.

[0115] In one possible implementation, the target field is a RedCap capability field and / or an eRedCap capability field.

[0116] The present application can determine whether the terminal device is a RedCap terminal device and / or an eRedCap terminal device based on the RedCap capability field or the eRedCap capability field, so as to facilitate the subsequent configuration of the cell selection strategy when the terminal device is a RedCap terminal device and / or an eRedCap terminal device, thereby avoiding the failure of the terminal device to trigger switching or reselection.

[0117] In one design, Figure 6 As shown, a cell selection strategy configuration method provided in an embodiment of the present application, before the above step S401, the method further includes S501:

[0118] S501: A base station sends a terminal device capability query message to a terminal device. Correspondingly, the terminal device receives the terminal device capability query message from the base station.

[0119] Among them, the terminal device capability query message is used to instruct the terminal device to report the terminal capability.

[0120] Optionally, the base station may trigger the acquisition of the terminal device capability, that is, when the terminal device accesses the base station, the base station may send a terminal device capability query message to the terminal device.

[0121] The terminal device may receive a terminal device capability query message (requested CapabilityNR) from the base station. Further, the terminal device may send a terminal device capability message to the base station. In this way, the base station or core network device may configure a cell selection strategy based on the terminal device capability message to avoid the terminal device triggering a handover or reselection failure.

[0122] Exemplarily, the terminal device capability query message may be a requested Capability NR information element (IE), wherein the requested Capability NR IE includes terminal device capability acquisition filter information, such as the terminal device capability acquisition filter information may be a UE-Capability Request Filter NRIE.

[0123] Among them, the Requested Capability NR IE can be parsed into the UE-Capability RequestFilter NR IE. The UE-Capability Request Filter NR IE omits the domain band list filter.

[0124] Exemplarily, the data structure of the current UE-Capability Request Filter NR IE is as follows:

[0125] UE-Capability Request Filter NR IE

[0126] --ASN1START (data structure start marker)

[0127] --TAG-UE-CAPABILITYREQUESTFILTERNR-START

[0128] UE-Capability Request Filter NR::=

[0129] SEQUENCE{

[0130] frequencyBandListFilter

[0131] FreqBandList

[0132] OPTIONAL,--Need N

[0133] nonCriticalExtension

[0134] UE-CapabilityRequestFilterNR-v1540

[0135] OPTIONAL

[0136] }

[0137] UE-CapabilityRequestFilterNR-v1540::=

[0138] SEQUENCE{

[0139] srs-SwitchingTimeRequest

[0140] ENUMERATED{true}

[0141] OPTIONAL,--Need N

[0142] nonCriticalExtension

[0143] UE-CapabilityRequestFilterNR-v1710

[0144] OPTIONAL

[0145] }

[0146] UE-CapabilityRequestFilterNR-v1710::=

[0147] SEQUENCE{

[0148] sidelinkRequest-r17

[0149] ENUMERATED{true}

[0150] OPTIONAL,--Need N

[0151] nonCriticalExtension

[0152] SEQUENCE{}

[0153] OPTIONAL

[0154] }

[0155] --TAG-UE-CAPABILITYREQUESTFILTERNR-STOP

[0156] --ASN1STOP (data structure end marker)

[0157] From the above data structure, it can be seen that the current UE-Capability Request Filter NR IE does not involve field information related to RedCap capability and eRedCap capability. Therefore, the base station cannot instruct the terminal to report its RedCap capability and eRedCap capability.

[0158] In one possible implementation, the terminal device capability query message provided by the embodiment of the present application may include a RedCap capability acquisition field and / or an eRedCap capability acquisition field.

[0159] It should be understood that the present application realizes the explicit presentation of the above capability acquisition fields by adding a RedCap capability acquisition field and / or an eRedCap capability acquisition field in the terminal device capability query message. In this way, the terminal device can report to the base station whether it has RedCap capability and / or eRedCap capability according to the terminal device capability query message.

[0160] Exemplarily, the data structure of the UE-Capability Request Filter NR IE provided in the embodiment of the present application is as follows:

[0161] UE-Capability Request Filter NR IE-xxxx::=

[0162] SEQUENCE{

[0163] RedCapRequest-r17***RedCap capability acquisition field

[0164] ENUMERATED{true}

[0165] OPTIONAL,--Need N

[0166] nonCriticalExtension

[0167] SEQUENCE{}

[0168] OPTIONAL

[0169] }

[0170] UE-Capability Request Filter NR IE-xxxx::=

[0171] SEQUENCE{

[0172] eRedCapRequest-r17***eRedCap capability acquisition fields

[0173] ENUMERATED{true}

[0174] OPTIONAL,--Need N

[0175] nonCriticalExtension

[0176] SEQUENCE{}

[0177] OPTIONAL

[0178] Among them, RedCapRequest-r17 and eRedCapRequest-r17 are the newly added RedCap capability acquisition field and eRedCap capability acquisition field. It can be seen that the UE-Capability RequestFilter NR IE provided in the embodiment of the present application includes the RedCap capability acquisition field and the eRedCap capability acquisition field. Therefore, the base station can instruct the terminal to report its RedCap capability and eRedCap capability.

[0179] Optionally, the base station can parse the terminal device capability message reported by means of UE-Capability Request Filter NR IE. When parsing at the base station, there is no need to modify the interface signaling from the base station to the core network device.

[0180] In a possible implementation, the core network device may trigger the acquisition of terminal device capabilities. That is, when the terminal device accesses the core network device through the base station, the core network device may carry the terminal device capability information request (UE CapabilityInfo Request IE) in the downlink non-access stratum (NAS) message through the terminal device capability information indication function (UE Capability Info Indication function) of the next generation (NG) interface, and set it to requested. Furthermore, when the base station receives the terminal device capability information request from the core network device, it may send a terminal device capability query message to the terminal device.

[0181] In one possible implementation, the core network device can parse the terminal device capability message reported by means of UE-Capability RequestFilter NR IE. The interface signaling from the base station to the core network device (i.e., the signaling in this application) needs to be modified, and the base station can send the terminal device capability message to the core network device through interface signaling (e.g., S1 interface signaling). The interface signaling can carry the terminal device capability message, and the terminal device capability message includes the terminal device NR capability in the terminal device wireless side capability, and the terminal device NR capability includes the RedCap capability field and / or the eRedCap capability field. The core network device (such as MME) can associate the corresponding terminal device wireless side capability information with the terminal device (e.g., UE registration information, etc.) to facilitate subsequent operations.

[0182] The present application can parse the terminal device capability message reported by means of UE-Capability RequestFilter NR IE by means of core network equipment and base station, making the parsing of the terminal device capability message more flexible.

[0183] The above mainly introduces the solution provided by the embodiment of the present application from the perspective of the method. In order to realize the above functions, it includes hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiment disclosed herein, the embodiment of the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0184] The embodiment of the present application can divide the functional modules of a cell selection strategy configuration method according to the above method example. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware or in the form of software functional modules. Optionally, the division of modules in the embodiment of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation.

[0185] Figure 7 A schematic diagram of the structure of a cell selection strategy configuration device provided in an embodiment of the present application. Figure 7 As shown, a cell selection strategy configuration device 90 is used to avoid triggering a RedCap terminal device to select a cell that does not support RedCap, for example, to perform Figure 2 A cell selection strategy configuration method is shown. The cell selection strategy configuration device 90 includes: a receiving unit 901.

[0186] Receiving unit 901 is used to receive a configuration message from a base station; the configuration message includes a cell selection strategy; the terminal device is a reduced-capability RedCap terminal device and / or an enhanced reduced-capability eRedCap terminal device; the cell selection strategy is used to restrict the terminal device from accessing a target cell; the target cell is a cell that does not support RedCap and / or eRedCap.

[0187] In a possible implementation manner, the cell selection strategy is configured by a network management system of the base station and / or a core network device.

[0188] In one possible implementation, the cell selection strategy is used to indicate the access priority of multiple frequency bands; the multiple frequency bands include the frequency band of the target cell; the access priority of the frequency band of the target cell is lower than the access priority of other frequency bands; the other frequency bands are frequency bands other than the frequency band of the target cell among the multiple frequency bands; or, the cell selection strategy is used to indicate cell information for which terminal equipment is prohibited from switching or reselecting; the cell information includes the target cell; or, the cell selection strategy is used to indicate area information of an access-allowed area and / or an access-not allowed area; the target cell is located in an access-not allowed area.

[0189] In a possible implementation, the cell selection strategy configuration device 90 further includes: a sending unit 902; the sending unit 902 is used to send a terminal device capability message to the base station; the terminal device capability message includes a target field; the target field is used to represent the capability information of the terminal device.

[0190] In a possible implementation, the target field is carried in the capability information of the terminal device in the form of a container character string under different network standards.

[0191] In one possible implementation, the target field is a RedCap capability field and / or an eRedCap capability field.

[0192] In a possible implementation, the receiving unit 901 is further configured to receive a terminal device capability query message from a base station; the terminal device capability query message is used to instruct the terminal device to report terminal capabilities.

[0193] In a possible implementation, the terminal device capability query message includes a RedCap capability acquisition field and / or an eRedCap capability acquisition field.

[0194] In a possible implementation, the cell accessed by the terminal device is a 4G cell of the fourth generation mobile communication system.

[0195] In a possible implementation, the terminal device capability message is parsed by a base station or a core network device.

[0196] Figure 8 A schematic diagram of the structure of a cell selection strategy configuration device provided in an embodiment of the present application. Figure 8 As shown, a cell selection strategy configuration device 100 is used to avoid triggering a RedCap terminal device to select a cell that does not support RedCap, for example, to perform Figure 2 A cell selection strategy configuration method is shown. The cell selection strategy configuration device 100 includes: a sending unit 1001.

[0197] The sending unit 1001 is used to send a configuration message to the terminal device; the configuration message includes a cell selection strategy; the terminal device is a reduced-capability RedCap terminal device and / or an enhanced reduced-capability eRedCap terminal device; the cell selection strategy is used to restrict the terminal device from accessing a target cell; the target cell is a cell that does not support RedCap and / or eRedCap.

[0198] In a possible implementation, the cell selection policy configuration device 100 further includes: a processing unit 1002; the processing unit 1002 is configured to configure the cell selection policy through a network management system.

[0199] In a possible implementation, the cell selection strategy configuration device 100 further includes: a receiving unit 1003; the receiving unit 1003 is used to receive a terminal device capability message from a terminal device; the terminal device capability message includes a target field; the target field is used to represent the capability information of the terminal device.

[0200] In a possible implementation, the sending unit 1001 is further configured to send a terminal device capability query message to the terminal device; the terminal device capability query message is used to instruct the terminal device to report terminal capabilities.

[0201] In the case of implementing the functions of the above-mentioned integrated modules in the form of hardware, the embodiment of the present application provides a possible structural diagram of the electronic device involved in the above-mentioned embodiment. Fig. 9 As shown, an electronic device 120 is used to avoid triggering a RedCap terminal device to select a cell that does not support RedCap, for example, to perform Figure 2 A cell selection strategy configuration method is shown. The electronic device 120 includes a processor 1201, a memory 1202 and a bus 1203. The processor 1201 and the memory 1202 may be connected via the bus 1203.

[0202] The processor 1201 is the control center of the communication device, which can be a processor or a general term for multiple processing elements. For example, the processor 1201 can be a general-purpose central processing unit (CPU) or other general-purpose processors. Among them, the general-purpose processor can be a microprocessor or any conventional processor.

[0203] As an embodiment, the processor 1201 may include one or more CPUs, such as Fig. 9 CPU 0 and CPU 1 are shown in .

[0204] The memory 1202 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited to these.

[0205] As a possible implementation, the memory 1202 may exist independently of the processor 1201, and the memory 1202 may be connected to the processor 1201 via a bus 1203 for storing instructions or program codes. When the processor 1201 calls and executes the instructions or program codes stored in the memory 1202, a cell selection strategy configuration method provided in an embodiment of the present application can be implemented.

[0206] In another possible implementation, the memory 1202 may also be integrated with the processor 1201 .

[0207] The bus 1203 may be an industry standard architecture (ISA) bus, a peripheral component interconnect (PCI) bus, or an extended industry standard architecture (EISA) bus. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig. 9 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0208] It should be pointed out that Fig. 9 The structure shown does not constitute a limitation on the electronic device 120. Fig. 9 In addition to the components shown, the electronic device 120 may include more or fewer components than shown, or combine certain components, or arrange the components differently.

[0209] As an example, combining Figure 7 The functions implemented by the receiving unit 901 and the sending unit 902 in the cell selection strategy configuration device 90 are similar to those Fig. 9 The function of processor 1201 in is the same.

[0210] Optional, such as Fig. 9 As shown, the electronic device 120 provided in the embodiment of the present application may further include a communication interface 1204 .

[0211] The communication interface 1204 is used to connect with other devices through a communication network. The communication network may be Ethernet, wireless access network, wireless local area network (WLAN), etc. The communication interface 1204 may include a receiving unit for receiving data and a sending unit for sending data.

[0212] In one design, in the electronic device provided in the embodiment of the present application, the communication interface can also be integrated into the processor.

[0213] Through the description of the above implementation methods, those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above functional units is used as an example. In practical applications, the above functions can be assigned to different functional units as needed, that is, the internal structure of the device can be divided into different functional units to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0214] An embodiment of the present application also provides a computer-readable storage medium, in which instructions are stored. When a computer executes the instructions, the computer executes each step in the method flow shown in the above method embodiment.

[0215] An embodiment of the present application provides a computer program product. When the computer instructions are executed on an electronic device, the electronic device executes a cell selection strategy configuration method in the above method embodiment.

[0216] Among them, the computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media (a non-exhaustive list) include: an electrical connection with one or more wires, a portable computer disk, a hard disk. Random access memory (random access memory, RAM), read-only memory (read-only memory, ROM), erasable programmable read only memory (erasable programmable read only memory, EPROM), registers, hard disks, optical fibers, portable compact disc read-only memory (compact disc read-only memory, CD-ROM), optical storage devices, magnetic storage devices, or the above in a suitable combination, or any other form of computer-readable storage medium known in the art.

[0217] An exemplary storage medium is coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium can be located in an application specific integrated circuit (ASIC).

[0218] In the embodiments of the present application, a computer-readable storage medium may be any tangible medium that contains or stores a program, which may be used by or in conjunction with an instruction execution system, apparatus, or device.

[0219] Since the electronic device, computer-readable storage medium, and computer program product in the embodiments of the present application can be applied to the above-mentioned method, the technical effects that can be obtained can also refer to the above-mentioned method embodiments, and the embodiments of the present application will not be repeated here.

[0220] The above are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application.

Claims

1. A cell selection strategy configuration method, characterized in that: Applied to a terminal device, the method comprises: Receive a configuration message from a base station; the configuration message includes a cell selection strategy; the terminal device is a reduced-capability RedCap terminal device and / or an enhanced reduced-capability eRedCap terminal device; the cell selection strategy is used to restrict the terminal device from accessing a target cell; the target cell is a cell that does not support RedCap and / or eRedCap.

2. The method according to claim 1, characterized in that The cell selection strategy is configured by the network management system and / or core network equipment of the base station.

3. The method according to claim 2, characterized in that The cell selection strategy is used to indicate the access priority of multiple frequency bands; the multiple frequency bands include the frequency band of the target cell; the access priority of the frequency band of the target cell is lower than the access priority of other frequency bands; the other frequency bands are frequency bands other than the frequency band of the target cell among the multiple frequency bands; or, The cell selection strategy is used to indicate the cell information that prohibits the terminal device from switching or reselecting; the cell information includes the target cell; or, The cell selection strategy is used to indicate area information of an access-allowed area and / or an access-not-allowed area; and the target cell is located in the access-not-allowed area.

4. The method according to claim 1, characterized in that: Before receiving the configuration message from the base station, the method further includes: A terminal device capability message is sent to the base station; the terminal device capability message includes a target field; the target field is used to represent the capability information of the terminal device.

5. The method according to claim 4, characterized in that The target field is carried in the capability information of the terminal device in the form of a container character string under different network standards.

6. The method according to claim 4, characterized in that The target field is a RedCap capability field and / or an eRedCap capability field.

7. The method according to claim 4, characterized in that The method further comprises: Receive a terminal device capability query message from the base station; the terminal device capability query message is used to instruct the terminal device to report terminal capabilities.

8. The method according to claim 7, characterized in that The terminal device capability query message includes a RedCap capability acquisition field and / or an eRedCap capability acquisition field.

9. The method according to claim 1, characterized in that: The cell accessed by the terminal device is a 4G cell of the fourth generation mobile communication system.

10. The method according to claim 4, characterized in that The terminal device capability message is parsed by the base station or core network device.

11. A method for configuring a cell selection strategy, characterized in that: Applied to a base station, the method comprises: A configuration message is sent to a terminal device; the configuration message includes a cell selection strategy; the terminal device is a reduced-capability RedCap terminal device and / or an enhanced reduced-capability eRedCap terminal device; the cell selection strategy is used to restrict the terminal device from accessing a target cell; the target cell is a cell that does not support RedCap and / or eRedCap.

12. The method according to claim 11, characterized in that Before sending the configuration message to the terminal device, the method further includes: The cell selection strategy is configured through a network management system.

13. The method according to claim 11, characterized in that Before sending the configuration message to the terminal device, the method further includes: A terminal device capability message is received from the terminal device; the terminal device capability message includes a target field; the target field is used to represent the capability information of the terminal device.

14. The method according to claim 13, characterized in that The method further comprises: A terminal device capability query message is sent to the terminal device; the terminal device capability query message is used to instruct the terminal device to report terminal capabilities.

15. A cell selection strategy configuration device, characterized in that: Applied to a terminal device, the cell selection strategy configuration device comprises: a receiving unit; The receiving unit is used to receive a configuration message from a base station; the configuration message includes a cell selection strategy; the terminal device is a reduced-capability RedCap terminal device and / or an enhanced reduced-capability eRedCap terminal device; the cell selection strategy is used to restrict the terminal device from accessing a target cell; the target cell is a cell that does not support RedCap and / or eRedCap.

16. A cell selection strategy configuration device, characterized in that: Applied to a base station, the cell selection strategy configuration device comprises: a sending unit; The sending unit is used to send a configuration message to the terminal device; the configuration message includes a cell selection strategy; the terminal device is a reduced-capability RedCap terminal device and / or an enhanced reduced-capability eRedCap terminal device; the cell selection strategy is used to restrict the terminal device from accessing a target cell; the target cell is a cell that does not support RedCap and / or eRedCap.

17. An electronic device, characterized in that: include: Processor and memory; Wherein, the memory is used to store one or more programs, and the one or more programs include computer-executable instructions. When the electronic device is running, the processor executes the computer-executable instructions stored in the memory to enable the electronic device to perform the method described in any one of claims 1-10 or claims 11-14.

18. A computer-readable storage medium storing one or more programs, characterized in that: The one or more programs include instructions which, when executed by a computer, cause the computer to perform the method of any one of claims 1-10 or claims 11-14.

19. A computer program product, characterized in that The computer program product comprises computer instructions. When the computer instructions are executed on an electronic device, the electronic device executes the method according to any one of claims 1 to 10 or claims 11 to 14.

Images