Reselection measurement method, communication device, computer equipment and readable storage medium

Abstract

The invention provides a reselection measurement method, a communication device, computer equipment and a readable storage medium. The method can be applied to terminal equipment. The method comprises the following steps: measuring M frequency points; and determining N1 candidate frequency points from the M frequency points. Measuring the N1 candidate frequency points under the condition that reselection measurement indication information from the network equipment is received, and determining a first frequency point from the N1 candidate frequency points based on the signal measurement values of the N1 candidate frequency points; and in response to the reselection measurement indication information, sending a network residing request to the network equipment on the first frequency point. Wherein the signal measurement values of the N1 candidate frequency points are greater than the signal measurement values of the frequency points except the N1 candidate frequency points in the M frequency points; the signal measurement value of the first frequency point is greater than the signal measurement values of candidate frequency points except the first frequency point in the N1 candidate frequency points; m and N1 are positive integers, and N1 is smaller than M. According to the invention, the time delay and power consumption of reselection measurement can be reduced.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a reselection measurement method, communication device, computer equipment, and readable storage medium. Background Technology

[0002] With the widespread adoption of 5G, reduced-capability (RedCap) 5G devices are increasingly used in IoT sensors, shared bicycles, smart meters, and other scenarios, adapting to various IoT requirements. Compared to traditional 5G terminals, RedCap devices support narrower bandwidths (e.g., 20MHz) and fewer antennas (e.g., one transmit and one receive antenna), simplifying the RF process. However, due to hardware limitations, RedCap devices struggle to support the overhead of traditional reselection measurement mechanisms, potentially leading to higher latency in reselection measurements.

[0003] Therefore, improving the efficiency of reselection measurement and reducing the time delay and power consumption of reselection measurement are technical problems that urgently need to be solved. Summary of the Invention

[0004] This application provides a reselection measurement method, communication device, computer equipment, and readable storage medium, which can improve the efficiency of reselection measurement and reduce the latency and power consumption of reselection measurement.

[0005] In a first aspect, the reselection measurement method provided in this application can be applied to a terminal device. The method may include: measuring M frequency points; determining N1 candidate frequency points from the M frequency points based on the signal measurement values ​​of the M frequency points; the signal measurement values ​​of the N1 candidate frequency points are greater than the signal measurement values ​​of the frequency points other than the N1 candidate frequency points among the M frequency points; M and N1 are positive integers, and N1 is less than M; upon receiving a reselection measurement indication information from a network device, measuring the N1 candidate frequency points, and determining a first frequency point from the N1 candidate frequency points based on the signal measurement values ​​of the N1 candidate frequency points; the signal measurement value of the first frequency point is greater than the signal measurement values ​​of the candidate frequency points other than the first frequency point among the N1 candidate frequency points; and in response to the reselection measurement indication information, sending a network registration request to the network device on the first frequency point.

[0006] As can be seen, the terminal device can determine N1 candidate frequency points from M frequency points before performing reselection measurements. When the terminal device receives the reselection measurement instruction information, it can measure only the N1 candidate frequency points and determine the first frequency point from them. In this way, not only can the power consumption and latency caused by the terminal device performing full-band scanning during reselection measurements be avoided, but the power consumption of the terminal device can also be reduced, and the efficiency of reselection measurements can be improved.

[0007] In one possible implementation, measuring the M frequency points may include: measuring the M frequency points when the signal measurement value of a historical frequency point is less than a measurement threshold; or measuring the M frequency points upon receiving a power-on command or a reset command.

[0008] In one possible implementation, the M frequency points are the frequency points supported by the terminal device.

[0009] In one possible implementation, measuring the M frequency points may include: upon receiving a first signaling from a network device, measuring the M frequency points, where the M frequency points include M1 frequency points supported by the terminal device and M2 frequency points indicated by the first signaling; M1 and M2 are positive integers.

[0010] As can be seen, the terminal device can measure all the frequency points it supports in order to determine N1 candidate frequency points.

[0011] In one possible implementation, determining N1 candidate frequency points from M frequency points based on signal measurement values ​​of M frequency points may include: determining K frequency points from M frequency points based on signal measurement values ​​of M frequency points; the signal measurement values ​​of the K frequency points are greater than the signal measurement values ​​of the frequency points other than the K frequency points among the M frequency points; K is a positive integer less than M; measuring the K frequency points for t consecutive scanning cycles to obtain the period measurement values ​​corresponding to the K frequency points; t is a positive integer; determining P frequency points from the K frequency points based on the period measurement values ​​corresponding to the K frequency points, the period measurement values ​​corresponding to the P frequency points being greater than a first threshold; P is a positive integer less than M; measuring the frequency points other than the P frequency points among the K frequency points to obtain the signal measurement values ​​of the frequency points other than the P frequency points among the K frequency points; and determining N1 candidate frequency points based on the signal measurement values ​​of the frequency points other than the P frequency points among the K frequency points and the period measurement values ​​corresponding to the P frequency points.

[0012] In this way, for frequency points where the signal measurement value is greater than the first threshold for t consecutive scan cycles, the number of measurements can be reduced, thereby reducing redundant and meaningless measurements by the terminal device, reducing the power consumption and latency of the terminal device in reselection measurements, and thus improving the efficiency of reselection measurements. Furthermore, the quality of candidate frequency points can be guaranteed.

[0013] In one possible implementation, determining N1 candidate frequency points from M frequency points based on signal measurement values ​​of M frequency points may include: determining K2 frequency points from the M frequency points based on the signal measurement values ​​of M frequency points; the signal measurement values ​​of the K2 frequency points are greater than the signal measurement values ​​of the frequency points other than the K2 frequency points among the M frequency points; measuring the K2 frequency points for t2 consecutive scanning cycles to obtain the corresponding period measurement values ​​of the K2 frequency points; determining R frequency points from the K2 frequency points based on the corresponding period measurement values ​​of the K2 frequency points, where the period measurement values ​​of the R frequency points are less than a measurement threshold; measuring the frequency points other than the R frequency points among the K2 frequency points to obtain the signal measurement values ​​of the frequency points other than the R frequency points among the K2 frequency points; and determining N1 candidate frequency points based on the signal measurement values ​​of the frequency points other than the R frequency points among the K frequency points. Where K2, t2, and R are positive integers, and K2 and R are both less than M.

[0014] In this way, for frequency points where the signal measurement value is less than the measurement threshold for t consecutive scan cycles, these frequency points can be ignored during reselection measurement, and N1 candidate frequency points can be determined from the other frequency points. This reduces the number of frequency points measured by the terminal device, reduces the power consumption and latency of the terminal device in reselection measurement, thereby improving the efficiency of reselection measurement. Furthermore, it ensures the quality of the candidate frequency points.

[0015] In one possible implementation, the method may further include: measuring M frequency points when the signal measurement value of the first frequency point is detected to be less than a second threshold; determining N2 candidate frequency points from the M frequency points based on the signal measurement values ​​of the M frequency points; the signal measurement values ​​of the N2 candidate frequency points are greater than the signal measurement values ​​of the frequency points other than the N2 candidate frequency points among the M frequency points; N2 is a positive integer less than M; determining a second frequency point from the N2 candidate frequency points based on the signal measurement values ​​of the N2 candidate frequency points; and switching the network-hosting frequency point from the first frequency point to the second frequency point.

[0016] In this way, when the signal measurement value of the frequency point where the terminal device is currently camped, i.e. the first frequency point, deteriorates, the second frequency point can be determined from the M frequency points in a high-efficiency manner to ensure the communication quality of the terminal device.

[0017] In one possible implementation, the method may further include: if the signal measurement value of the second frequency point among the N1 candidate frequency points is greater than the signal measurement value of the candidate frequency points other than the second frequency point among the N1 candidate frequency points, and the signal measurement value of the second frequency point is greater than a first threshold, the network station frequency point is switched from the first frequency point to the second frequency point.

[0018] When the signal measurement value of the frequency point currently occupied by the terminal device (i.e., the first frequency point) deteriorates, a second frequency point can be preferentially determined from N1 candidate frequency points. In this way, the measurement overhead of the terminal device can be reduced to a certain extent.

[0019] In one possible implementation, the method of measuring M frequency points when the signal measurement value of the first frequency point is detected to be less than the second threshold may include: measuring N1 candidate frequency points when the signal measurement value of the first frequency point is detected to be less than the second threshold, and obtaining updated signal measurement values ​​of N1 candidate frequency points; and measuring M frequency points when the updated signal measurement values ​​of all N1 candidate frequency points are less than the measurement threshold.

[0020] As can be seen, when the signal measurement value of the frequency point currently occupied by the terminal device (i.e., the first frequency point) deteriorates, and the measurement values ​​of all N1 candidate frequency points are less than the measurement threshold, the second frequency point can be determined by measuring M frequency points. In this way, the measurement overhead of the terminal device can be reduced to a certain extent.

[0021] Secondly, embodiments of this application provide a communication device, which includes a processing unit and a transceiver unit.

[0022] The processing unit is configured to measure M frequency points; determine N1 candidate frequency points from the M frequency points based on the signal measurement values ​​of the M frequency points; the signal measurement values ​​of the N1 candidate frequency points are greater than the signal measurement values ​​of the frequency points other than the N1 candidate frequency points among the M frequency points; M and N1 are positive integers, and N1 is less than M; upon receiving reselection measurement indication information from the network device, measure the N1 candidate frequency points, and determine a first frequency point from the N1 candidate frequency points based on the signal measurement values ​​of the N1 candidate frequency points; the signal measurement value of the first frequency point is greater than the signal measurement values ​​of the candidate frequency points other than the first frequency point among the N1 candidate frequency points.

[0023] The transceiver unit is used to send a network access request to the network device on the first frequency point in response to the reselection measurement indication information.

[0024] As can be seen, the terminal device can determine N1 candidate frequency points from M frequency points before performing reselection measurements. When the terminal device receives the reselection measurement instruction information, it can measure only the N1 candidate frequency points and determine the first frequency point from them. In this way, not only can the power consumption and latency caused by the terminal device performing full-band scanning during reselection measurements be avoided, but the power consumption of the terminal device can also be reduced, and the efficiency of reselection measurements can be improved.

[0025] In one possible implementation, the processing unit is further configured to measure M frequency points if the signal measurement value of a historical frequency point is less than a measurement threshold; or to measure M frequency points upon receiving a power-on command or a reset command.

[0026] In one possible implementation, the M frequency points are the frequency points supported by the terminal device.

[0027] In one possible implementation, the processing unit is further configured to measure M frequency points upon receiving a first signaling from the network device, the M frequency points including M1 frequency points supported by the terminal device and M2 frequency points indicated by the first signaling; M1 and M2 are positive integers.

[0028] As can be seen, the terminal device can measure all the frequency points it supports in order to determine N1 candidate frequency points.

[0029] In one possible implementation, the processing unit is further configured to: determine K frequency points from the M frequency points based on signal measurement values ​​of the M frequency points; the signal measurement values ​​of the K frequency points are greater than the signal measurement values ​​of the frequency points other than the K frequency points in the M frequency points; K is a positive integer less than M; measure the K frequency points for t consecutive scanning cycles to obtain the period measurement values ​​corresponding to the K frequency points; t is a positive integer; determine P frequency points from the K frequency points based on the period measurement values ​​corresponding to the K frequency points, the period measurement values ​​corresponding to the P frequency points are greater than a first threshold; P is a positive integer less than M; measure the frequency points other than the P frequency points in the K frequency points to obtain the signal measurement values ​​of the frequency points other than the P frequency points in the K frequency points; and determine N1 candidate frequency points based on the signal measurement values ​​of the frequency points other than the P frequency points in the K frequency points and the period measurement values ​​corresponding to the P frequency points.

[0030] In this way, for frequency points where the signal measurement value is greater than the first threshold for t consecutive scan cycles, the number of measurements can be reduced, thereby reducing redundant and meaningless measurements by the terminal device, reducing the power consumption and latency of the terminal device in reselection measurements, and thus improving the efficiency of reselection measurements. Furthermore, the quality of candidate frequency points can be guaranteed.

[0031] In one possible implementation, the processing unit is further configured to: determine K2 frequency points from the M frequency points based on signal measurement values ​​of the M frequency points; the signal measurement values ​​of the K2 frequency points are greater than the signal measurement values ​​of the frequency points other than the K2 frequency points among the M frequency points; measure the K2 frequency points for t2 consecutive scanning cycles to obtain the corresponding cycle measurement values ​​of the K2 frequency points; determine R frequency points from the K2 frequency points based on the corresponding cycle measurement values ​​of the K2 frequency points, where the corresponding cycle measurement values ​​of the R frequency points are less than a measurement threshold; measure the frequency points other than the R frequency points among the K2 frequency points to obtain the signal measurement values ​​of the frequency points other than the R frequency points among the K2 frequency points; and determine N1 candidate frequency points based on the signal measurement values ​​of the frequency points other than the R frequency points among the K frequency points. Where K2, t2, and R are positive integers, and K2 and R are both less than M.

[0032] In this way, if the signal measurement value is less than the measured frequency point for t consecutive scan cycles, these frequency points can be ignored during reselection measurement, and the first frequency point can be determined from other candidate frequency points with larger measurement signal values. This reduces redundant and meaningless measurements by the terminal device, reduces the power consumption and latency of the terminal device during reselection measurement, and thus improves the efficiency of reselection measurement. Furthermore, it ensures the quality of the candidate frequency points.

[0033] In one possible implementation, the processing unit is further configured to: measure M frequency points if the signal measurement value of the first frequency point is detected to be less than a second threshold; determine N2 candidate frequency points from the M frequency points based on the signal measurement values ​​of the M frequency points; the signal measurement values ​​of the N2 candidate frequency points are greater than the signal measurement values ​​of the frequency points other than the N2 candidate frequency points in the M frequency points; N2 is a positive integer less than M; determine a second frequency point from the N2 candidate frequency points based on the signal measurement values ​​of the N2 candidate frequency points; and switch the network-hosting frequency point from the first frequency point to the second frequency point.

[0034] In this way, when the signal measurement value of the frequency point where the terminal device is currently camped, i.e. the first frequency point, deteriorates, the second frequency point can be determined from the M frequency points in a high-efficiency manner to ensure the communication quality of the terminal device.

[0035] In one possible implementation, the processing unit is further configured to measure N1 candidate frequency points to obtain updated signal measurement values ​​for N1 candidate frequency points when the signal measurement value of the first frequency point is detected to be less than a second threshold; and to measure M frequency points when the updated signal measurement values ​​of all N1 candidate frequency points are less than the measurement threshold.

[0036] As can be seen, when the signal measurement value of the frequency point currently occupied by the terminal device (i.e., the first frequency point) deteriorates, and the updated signal measurement values ​​of the N1 candidate frequency points are all less than the measurement threshold, the second frequency point can be determined from the M frequency points through measurement. In this way, the measurement overhead of the terminal device can be reduced to a certain extent.

[0037] Thirdly, embodiments of this application provide a computer device, the computer device comprising: a memory for storing a program; and a processor for executing the program stored in the memory. When the program is executed by the processor, the processor executes a method as described in the first aspect and any possible implementation of the first aspect, or executes a method as described in the second aspect and any possible implementation of the second aspect.

[0038] Fourthly, embodiments of this application provide a computer storage medium storing a computer program, the computer program including program instructions, wherein when the program instructions are executed by a processor, the processor executes a method as described in the first aspect and any possible implementation thereof, or executes a method as described in the second aspect and any possible implementation thereof. Attached Figure Description

[0039] Figure 1 A schematic diagram of a communication system provided in an embodiment of this application;

[0040] Figure 2 A flowchart illustrating a reselection measurement method provided in an embodiment of this application;

[0041] Figure 3 A schematic flowchart of another reselection measurement method provided in this application embodiment;

[0042] Figure 4 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0043] Figure 5 This is a schematic diagram of the structure of a computer device provided in an embodiment of this application. Detailed Implementation

[0044] The embodiments of this application will now be described with reference to the accompanying drawings.

[0045] The terms "first," "second," "third," and "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0046] It should be understood that in this application, "at least one (item)" means one or more, and "more than" means two or more. "And / or" is used to describe the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0047] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0048] As used in this specification, the terms "component," "module," "system," etc., are used to refer to computer-related entities, hardware, firmware, combinations of hardware and software, software, or software in execution. For example, a component can be, but is not limited to, a process running on a processor, a processor, an object, an executable file, an execution thread, a program, and / or a computer. As illustrated, applications running on computing devices and computing devices can both be components. One or more components may reside in a process and / or an execution thread, and components may be located on a single computer and / or distributed among two or more computers. Furthermore, these components can be executed from various computer-readable media on which various data structures are stored. Components can communicate, for example, via local and / or remote processes based on signals having one or more data packets (e.g., data from two components interacting with another component between a local system, a distributed system, and / or a network, such as the Internet interacting with other systems via signals).

[0049] The technical solutions provided in this application can be applied to various communication systems, such as: Global System for Mobile Communications (GSM) systems, General Packet Radio Service (GPRS), Wireless Local Area Network (WLAN), Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, sidelink communication systems, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication systems, non-terrestrial network (NTN) communication systems, 5th generation (5G) mobile communication systems, or new radio access technology (NR). Among these, 5G mobile communication systems can include non-standalone (NSA) and / or standalone (SA) networking. The technical solutions provided in this application can also be applied to future communication systems. This application does not limit the scope of these applications.

[0050] Figure 1 This is a schematic diagram of a communication system provided for an embodiment of this application. The communication system may include network devices, such as... Figure 1 The network device 110 shown. The communication system may also include terminal devices, such as... Figure 1 The terminal device 120 is shown. The network device 110 and the terminal device 120 can communicate via a wireless link.

[0051] The communication system may include a wireless access network and a core network; optionally, the communication system may also include the Internet. The wireless access network may include at least one wireless access network device (such as...). Figure 1 The network device 110 may also include at least one terminal (such as...) Figure 1The terminal device 120 in the diagram connects wirelessly to the wireless access network device, which in turn connects to the core network wirelessly or via a wired connection. The core network device and the wireless access network device can be independent physical devices, or they can integrate the functions of the core network device and the logical functions of the wireless access network device onto the same physical device. Alternatively, a single physical device can integrate some of the functions of the core network device and some of the functions of the wireless access network device. Terminals and wireless access network devices can be interconnected via wired or wireless connections. Figure 1 This is just an illustration; the communication system may also include other network devices, such as wireless repeaters and wireless backhaul devices. Figure 1 It is not shown in the middle.

[0052] The network equipment in this application can be network-side equipment such as access network equipment and core network equipment. Access network equipment is sometimes also called access node. Access network equipment has wireless transceiver capabilities and is used to communicate with terminals. Access network equipment includes, but is not limited to, base stations, evolved NodeBs (eNodeBs), transmission reception points (TRPs) in the above-mentioned communication systems, next-generation NodeBs (gNBs) in 5G mobile communication systems, access network equipment or modules of access network equipment in open RAN (ORAN) systems, satellites in NTN communication systems, base stations in future mobile communication systems, or access nodes in WiFi systems. Access network equipment can also be modules or units capable of implementing some of the functions of a base station. Access network equipment can be macro base stations, micro base stations, indoor stations, relay nodes, donor nodes, or wireless controllers in cloud radioaccess network (CRAN) scenarios. Optionally, access network equipment can also be servers, wearable devices, or vehicle-mounted devices. For example, in vehicle-to-everything (V2X) technology, the access network equipment can be a roadside unit (RSU). Multiple access network equipment in a communication system can be base stations of the same type or different types. Base stations can communicate with terminals directly or via relay stations. Terminals can communicate with multiple base stations using different access technologies. The embodiments of this application do not limit the specific technology or equipment form used in the access network equipment. In this application, access network equipment is referred to as network equipment.

[0053] In this application, the means for implementing the functions of a network device can be a network device itself, or a means capable of supporting the network device in implementing those functions, such as a processor, circuit, chip, or chip system. This means can be installed in or connected to the network device. In the technical solutions provided in this application, the example of a network device being used to implement the functions of a network device is used to describe the technical solutions provided in this application.

[0054] Radio access network equipment can be a base station (BS), an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a 5G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system; it can also be a module or unit that performs some of the functions of a base station, for example, it can be a central unit (CU) or a distributed unit (DU). Here, the CU performs the functions of the radio resource control protocol and the packet data convergence protocol (PDCP) of the base station, and can also perform the functions of the service data adaptation protocol (SDAP); the DU performs the functions of the radio link control layer and the medium access control (MAC) layer of the base station, and can also perform some or all of the physical layer functions. For specific descriptions of the above-mentioned protocol layers, please refer to the relevant technical specifications of the 3rd Generation Partnership Project (3GPP). A base station including both a CU and a DU can also be called a base station with separate CU and DU, such as a base station including gNB-CU and gNB-DU. The CU can also be separated into a CU control plane (CU-CP) and a CU user plane (CU-CP), such as a base station including gNB-CU-CP, gNB-CU-UP, and gNB-DU. The wireless access network equipment can be a macro base station, a micro base station, an indoor station, a relay node, or a donor node, etc. The embodiments of this application do not limit the specific technology or equipment form used in the wireless access network equipment. For ease of description, network equipment is used as an example of wireless access network equipment in the following description.

[0055] In the embodiments of this application, the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user apparatus.

[0056] Terminal devices can be devices that provide voice / data, such as handheld devices with wireless connectivity, in-vehicle devices, etc. For example, terminal devices may include: mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, wearable devices, terminal devices in 5G networks, or future evolution of public land mobile communication networks. Terminal devices in a network (PLMN), etc., are not limited to this in the embodiments of this application.

[0057] By way of example and not limitation, in this embodiment, the terminal device can also be a 5G reduced capability (RedCap) device. For example, RedCap devices may include terminal devices in IoT application scenarios such as industrial wireless sensors, shared bicycle modules, smart meters, and wearable devices.

[0058] In this embodiment, the device for implementing the functions of the terminal device can be the terminal device itself, or it can be any device capable of supporting the terminal device in implementing those functions, such as a chip system. This device can be installed in or used in conjunction with the terminal device. In this embodiment, the chip system can be composed of chips or may include chips and other discrete components. This embodiment only uses the terminal device as an example to illustrate the device for implementing the functions of the terminal device, and does not constitute a limitation on the solution of this embodiment.

[0059] In the embodiments of this application, the functions of the network device can be executed by modules (such as chips) within the network device, or by a control subsystem that includes network device functions. This control subsystem, including network device functions, can be a control center in the aforementioned application scenarios such as smart grids, industrial control, intelligent transportation, and smart cities. Similarly, the functions of the terminal can be executed by modules (such as chips or modems) within the terminal, or by a device that includes terminal functions.

[0060] It is understood that the communication system described in the embodiments of this application is for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and does not constitute a limitation on the technical solutions provided in the embodiments of this application. Those skilled in the art will know that with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0061] To facilitate understanding of the embodiments of this application, some terms used in the embodiments of this application will be explained below, so that those skilled in the art can understand them. This part is only for the purpose of understanding and should not be regarded as a specific limitation of this application.

[0062] 1. Frequency point

[0063] A frequency point is a number or specific frequency value used in wireless communication to identify a particular frequency, usually measured in Hertz (Hz). It is primarily used to identify the carrier frequency of transmitted signals. Each frequency point corresponds to a unique carrier frequency and is used to transmit voice, data, or control signals. In mobile communication systems, frequency points are used to allocate different frequency resources and avoid interference between adjacent cells. Frequency points are directly related to the carrier frequency; each carrier corresponds to one frequency point. The carrier is the physical carrier of the transmitted signal.

[0064] 2. Cell

[0065] A cell is a basic coverage unit in a mobile communication network, consisting of a geographical area covered by a base station (or a sector of a base station). Cells typically utilize frequency reuse mechanisms, meaning adjacent cells use different frequencies to avoid interference, while cells that are far apart can reuse the same frequency. This significantly improves spectrum utilization and network capacity.

[0066] Each cell is allocated one or more frequency points for signal transmission. A carrier is the transmission medium at the physical layer; each carrier corresponds to a frequency point and serves a specific cell. Frequency allocation determines the signal transmission within a cell, while cell coverage, handover, and performance depend on frequency configuration and management. Together, they constitute the infrastructure of a mobile communication network, ensuring efficient and reliable wireless communication services.

[0067] 3. Reselection measurement

[0068] In mobile communications, cell reselection measurement refers to the process by which a terminal device in an idle or inactive state continuously measures the signal quality or signal strength of the current serving cell and neighboring cells, and determines whether to switch to a more suitable cell based on preset criteria. For example, if a stronger signal and lower latency are detected in another cell, a decision can be made to switch to that cell.

[0069] Cell reselection measurement helps ensure that terminal devices always camp on the cell with the best or most suitable signal quality. Terminal devices can typically operate at lower power in cells with good signal quality, thus improving their battery life. Reselection measurement also provides a solid wireless link foundation for subsequent service arrivals or service initiation by the terminal device, enabling rapid connection establishment. Furthermore, reselection measurement helps prevent too many terminal devices from concentrating on a single cell, thereby reducing cell load and achieving network load balancing.

[0070] When a terminal device performs a cell reselection measurement, the measurement targets may include the serving cell and neighboring cells. The serving cell is the cell where the terminal device is currently camped. Neighboring cells are also called nearby cells. The terminal device can determine the neighboring cells to be measured by receiving a list of neighboring cells broadcast by the network. The list of neighboring cells may include information such as the neighboring cell's frequency and physical cell identifier (PCI).

[0071] During the reselection measurement process, the measurement content of the terminal equipment mainly includes some indicators based on wireless signal strength and quality.

[0072] For example, this may include, but is not limited to, the following indicators:

[0073] Reference signal receiving power (RSRP) can be used to measure signal strength.

[0074] Reference signal receiving quality (RSRQ) represents the ratio of signal strength to interference noise and can be used to measure signal quality.

[0075] The Received Signal Strength Indicator (RSSI) measures the total power of all signals (including useful signals, interference, and noise) received within a specific channel bandwidth.

[0076] The pilot channel energy to interference plus noise power density ratio (Ec / Io) can also be used to measure signal quality.

[0077] Based on measurement results, the terminal device can determine whether it needs to reselect to a target network. For example, if the signal quality of the target network is significantly better than the current network, and / or the current cell has excessive network load, and / or the terminal device requires lower latency or higher bandwidth, the terminal device can choose to reselect to the target network. If a reselection is decided, the terminal device will disconnect from the current network, establish a connection with the target network, and complete the service handover.

[0078] 4. Reduced capability (RedCap) equipment

[0079] RedCap devices, also known as lightweight 5G devices, are 5G devices designed specifically for application scenarios that do not require high speeds and large bandwidths. RedCap reduces the device's capabilities by decreasing bandwidth, the number of transmit and receive antennas, lowering data rates, adjusting modulation methods, and introducing half-duplex mode, all while ensuring application requirements and performance. This reduces the complexity of terminal devices, achieving a series of goals such as lowering terminal costs, power consumption, and extending lifespan, making them more suitable for large-scale commercial deployment in 5G networks.

[0080] Specifically, reduced bandwidth, fewer uplink and downlink multiple-input multiple-output (MIMO) layers, and a smaller maximum downlink modulation order all contribute to lower baseband complexity. Reducing the number of transmit and uplink antennas, and allowing low-definition FDD (HD-FDD) half-duplex operation in the frequency division multiple access (FDD) band, helps reduce the cost of antennas and front-end RF devices. Furthermore, RedCap devices typically have small battery capacities but need to maintain long battery life; therefore, RedCap devices must operate with minimal power consumption.

[0081] Compared to traditional 5G terminal equipment, RedCap equipment supports narrower bandwidth (e.g., 20MHz) and fewer antennas (e.g., one transmit antenna and one receive antenna). Traditional reselection measurement processes typically involve complex procedures such as multi-layer frequency scanning and multi-antenna measurements. These procedures may be insufficient for RedCap equipment, easily leading to problems such as high measurement latency and excessive power consumption.

[0082] In view of this, embodiments of this application provide a reselection measurement method, communication device, computer equipment, and readable storage medium, which can be applied to terminal devices such as RedCap devices and can effectively reduce the power consumption and latency of reselection measurements.

[0083] The solution provided in this application will be described in detail below with reference to the corresponding flowcharts. It is understood that the illustrative flowcharts provided in this application primarily use different devices (e.g., terminal devices, network devices) as examples of the execution subjects of this interactive illustration to illustrate the method, but this application does not limit the execution subjects of the interactive illustrations. For example, the devices (e.g., terminal devices, network devices) in the illustrative flowcharts can also be chips, chip systems, or processors that support the implementation of this method on the device, or logic modules or software that can implement all or part of the functions of the device.

[0084] As a general statement, the message or signaling interactions involved in the interaction process of this application embodiment can be standard messages or signaling or newly introduced messages or signaling. This application embodiment does not make specific limitations on this.

[0085] Please see Figure 2 , Figure 2 This is a flowchart illustrating a reselection measurement method provided in an embodiment of this application. This reselection measurement method is applicable to, for example... Figure 1 The communication system shown. It is understandable that... Figure 2 The terminal device in the middle can be Figure 1Any terminal device in the context of network equipment can also refer to a component within that terminal device (such as a processor, chip, or chip system). Network equipment can be... Figure 1 Any access network device, or a device within an access network device (such as a processor, chip, or chip system).

[0086] like Figure 2 As shown, this reselection measurement method may include, but is not limited to, the following steps:

[0087] S201, the terminal device measures M frequency points and determines N1 candidate frequency points from the M frequency points based on the signal measurement values ​​of the M frequency points.

[0088] The signal measurement values ​​of N candidate frequency points are greater than the signal measurement values ​​of the frequency points other than the N1 candidate frequency points among the M frequency points; M and N1 are positive integers, and N1 is less than M.

[0089] Optionally, the terminal device measuring M frequency points can be referred to as performing a full-band scan.

[0090] The signal measurement value for one frequency point may include the reference signal received power (RSRP) and / or the reference signal received quality (RSRQ). The signal measurement values ​​for M frequency points include the signal measurement value for each of the M frequency points.

[0091] Optionally, among the N1 candidate frequency points, the signal measurement value of any candidate frequency point satisfies: RSRP≥-95dBm and RSRQ≥-10dB.

[0092] In one possible implementation, the identified N1 candidate frequency points can be referred to as high-quality frequency points. Optionally, the terminal device can store the N1 candidate frequency points in a cache. Optionally, the N1 candidate frequency points in the cache can be sorted according to the magnitude of their signal measurement values, such as sorting them in descending order of signal measurement values.

[0093] In one possible implementation, the terminal device can measure M frequency points if the signal measurement value at a historical frequency point is less than the measurement threshold.

[0094] Historical frequency points refer to the frequency points that the terminal device has historically camped on. Optionally, the terminal device can store the information about the frequency points it has camped on, such as in an acquisition database (acquisition database, acq_db). The frequency point information may include the frequency value of the historical frequency point, the time information of recording the historical frequency point, etc.

[0095] Optionally, the measurement threshold refers to the limit value at which a terminal device can reside on a particular frequency. The specific measurement threshold can be determined by the network configuration and may vary between different operators or network environments.

[0096] Optionally, if the terminal device fails to scan all frequency points in the historical frequency range, it can measure M frequency points. Frequency scanning refers to the process by which the terminal continuously changes the signal frequency to detect available frequency points and channels within a specified frequency band. Optionally, the frequency scanning performed by the terminal device may include, but is not limited to, the following processes: detecting available frequency points, measuring the RSRP and / or RSRQ of each available frequency point, and generating a candidate cell list, etc.

[0097] Optionally, a terminal device may fail to scan frequencies using historical frequency points for reasons including but not limited to the following: no signal was detected on the historical frequency point; the measured value of the signal detected on the historical frequency point was less than the measurement threshold; or the frequency scanning operation was not completed within the frequency scanning time configured by the network device.

[0098] In one possible implementation, the terminal device can measure M frequency points upon receiving a power-on command or a reset command. However, when the terminal device is powered on or reset, the historical frequency points may not be recorded in acq_db.

[0099] Optionally, the M frequency points can be frequency points supported by the terminal device.

[0100] In one possible implementation, the terminal device can measure M frequency points while in an idle state.

[0101] In one possible implementation, upon receiving a first signaling message from a network device, the terminal device can measure M frequency points. The M frequency points measured by the terminal device include M1 frequency points supported by the terminal device and M2 frequency points indicated by the first signaling message, where M1 and M2 are positive integers.

[0102] Optionally, if the terminal device receives the first signaling after having determined N1 candidate frequency points from M frequency points, then the terminal device may only measure the M2 frequency points indicated by the first signaling to obtain the signal measurement values ​​of the M2 frequency points. If the signal measurement value of frequency point n among the M2 frequency points is greater than the signal measurement value of at least one candidate frequency point (let's say candidate frequency point s) among the N1 candidate frequency points, then the N1 frequency points may be re-determined based on the signal measurement value of frequency point n and the measurement values ​​of the N1 candidate frequency points.

[0103] For example, assuming N1 is 5, the 5 candidate frequency points are represented in descending order of signal measurement values ​​as F1 to F5; the M2 frequency points indicated by the first signaling include two frequency points, represented as F6 and F7. The terminal device measures that the signal measurement value of F6 is greater than the signal measurement value of F4, and the signal measurement value of F7 is less than the signal measurement value of F5. Therefore, F1 to F7, in descending order of signal measurement values, are: F1, F2, F3, F6, F4, F5, F7. Based on this, the terminal device can determine new N1 candidate frequency points, namely: F1, F2, F3, F6, F4.

[0104] In one possible implementation, the terminal device can periodically measure the identified candidate frequency points. Specifically, the terminal device can determine K1 frequency points from the M frequency points based on the signal measurement values ​​of the M frequency points. The signal measurement values ​​of the K1 frequency points are greater than the signal measurement values ​​of all frequency points other than the K1 frequency points among the M frequency points; K1 is a positive integer less than M. In other words, these K1 frequency points can be called high-quality frequency points. After determining the K1 frequency points, the terminal device can measure the K1 frequency points according to a scanning cycle. Optionally, K1 is greater than or equal to N.

[0105] For example, the terminal device can continuously scan for t1 cycles to measure K1 frequency points, obtaining the corresponding cycle measurement values ​​for K1 frequency points. Based on the cycle measurement values ​​corresponding to the K1 frequency points, P frequency points are determined from the K1 frequency points. The frequency points other than the P frequency points are measured to obtain the signal measurement values ​​of the frequency points other than the P frequency points. In this way, the terminal device can determine N1 candidate frequency points based on the signal measurement values ​​of the frequency points other than the P frequency points and the corresponding cycle measurement values ​​of the P frequency points. Here, the cycle measurement values ​​corresponding to the P frequency points are greater than a first threshold; P is a positive integer less than M.

[0106] The periodic measurement value corresponding to a frequency point within a continuous t1 cycle includes the signal measurement value measured in each of the t1 scan cycles at that frequency point. For example, assuming t1 = 3, the periodic measurement value corresponding to a frequency point includes three signal measurement values ​​obtained by measuring that frequency point in three consecutive cycles. A periodic measurement value corresponding to P frequency points being greater than the first threshold means that among the P frequency points, the t1 signal measurement values ​​measured in each of the P frequency points within a continuous t1 cycle are all greater than the first threshold.

[0107] In other words, if any one of the K1 frequency points has t1 signal measurements exceeding the first threshold over t1 consecutive scan cycles, then in the next measurement, all other K1 frequency points except that one can be measured. This saves measurement overhead and ensures that candidate frequency points are those with larger signal measurements through periodic measurements. When determining the first frequency point, it can be selected from candidate frequency points with better quality. This not only improves efficiency but also guarantees the signal quality corresponding to the determined first frequency point.

[0108] Optionally, the scan cycle refers to the preset scan cycle of the terminal device. For example, the scan cycle can be set to 30 minutes, meaning the terminal device can scan for high-quality frequencies determined from M frequency points every 30 minutes. These high-quality frequencies can refer to the initially determined K1 frequency points, or to the subsequently determined N1 candidate frequency points. For example, after determining the first frequency point, the terminal device can still periodically measure the signal values ​​of the N1 candidate frequency points according to the scan cycle, thereby periodically monitoring the signal quality of the candidate frequency points. In this way, when the terminal device needs to switch its stationary frequency point, it can select from several candidate frequency points with large signal measurement values.

[0109] Optionally, the first threshold can be set to -95dBm. For example, if the RSRP of one of the K1 frequency points is ≥-95dBm after t1 consecutive measurements, it can be considered that the quality of that frequency point is good and relatively stable. In this case, in the next scan after t1 consecutive scans, only the other frequency points among the K1 frequency points other than that frequency point can be measured.

[0110] In one possible implementation, the terminal device can determine K2 frequency points from the M frequency points based on signal measurement values ​​of the M frequency points, where the signal measurement values ​​of the K2 frequency points are greater than the signal measurement values ​​of all other frequency points in the M frequency points. The terminal device measures the K2 frequency points for t2 consecutive scan cycles, obtaining the corresponding period measurement values ​​for the K2 frequency points. Based on the period measurement values ​​of the K2 frequency points, R frequency points can be determined from the K2 frequency points, where the corresponding period measurement values ​​are less than a measurement threshold. In other words, if the signal measurement values ​​of these R frequency points are all less than the measurement threshold for t2 consecutive scan cycles, it indicates that the signal quality of these R frequency points is poor. Further, the terminal device can measure the frequency points other than the R frequency points in the K2 frequency points, obtaining the signal measurement values ​​of these other frequency points, and based on the signal measurement values ​​of these other frequency points, determine N1 candidate frequency points. Where K2, t2, and R are positive integers, and K2 and R are both less than M.

[0111] For example, suppose K2 = 11, t2 = 3, and R = 1. After the terminal device scans 11 frequency points for 3 consecutive scan cycles, if the period measurement value corresponding to one of the 11 frequency points (called frequency point m) is less than the measurement threshold, it means that the three signal measurement values ​​measured by frequency point m in the 3 scan cycles are all less than the measurement threshold, indicating that the signal quality of frequency point m is poor and it is not suitable to be called a candidate frequency point. Therefore, the terminal device can measure the 10 frequency points other than frequency point m out of the 11 frequency points and determine N1 candidate frequency points from these 10 frequency points, such as determining 8 candidate frequency points.

[0112] This ensures that the N1 candidate frequency points determined by the terminal device are all frequency points with good signal quality, which is beneficial for the terminal device to determine the first frequency point and thus obtain better communication quality. Furthermore, it reduces the number of frequency points that the terminal device needs to measure during reselection measurements, improving the efficiency of reselection measurements, while also reducing the latency of the reselection measurement process and the power consumption of the terminal device.

[0113] S202, the network device sends a reselection measurement instruction to the terminal device. Correspondingly, the terminal device receives the reselection measurement instruction.

[0114] The cell reselection measurement indication information guides the terminal equipment to perform the measurement activities required for cell reselection. Optionally, the cell reselection measurement indication information may include the measurement frequency, measurement period, and measurement threshold (also known as the measurement threshold), ensuring that the terminal equipment can accurately assess the signal quality of surrounding cells and perform cell reselection when necessary to maintain a stable communication connection. The measurement frequency indicated in the cell reselection measurement indication information may include M frequency points.

[0115] S203, the terminal device measures N1 candidate frequency points and determines the first frequency point from the N1 candidate frequency points based on the signal measurement values ​​of the N1 candidate frequency points.

[0116] The signal measurement value of the first frequency point is greater than the signal measurement values ​​of the other candidate frequency points among the N1 candidate frequency points.

[0117] As can be seen, after receiving the reselection measurement instruction, the terminal device can measure only the N1 candidate frequency points with better quality and determine the first frequency point from these N1 candidate frequency points. In this way, the terminal device can efficiently determine the first frequency point and avoid the overhead and delay of performing full-band measurement after receiving the reselection measurement information.

[0118] In one possible implementation, the reselection measurement instruction information may further include the measurement order for the M frequency points. In other words, the reselection measurement instruction information may also indicate the measurement order for the N1 candidate frequency points. Thus, the terminal device can perform measurements on the N1 candidate frequency points according to the measurement order issued by the network device.

[0119] In S204, in response to the reselection measurement indication information, the terminal device sends a network registration request to the network device on the first frequency point. Correspondingly, the network device receives the network registration request.

[0120] An attach request can be used to request access to a target cell. Here, the first frequency point is the center frequency point of the target cell, meaning the target cell primarily transmits signals on the first frequency point. The terminal device measures good signal quality from the target cell on the first frequency point (i.e., the signal measurement value on the first frequency point is the maximum among the signal measurement values ​​of N1 candidate frequency points), and therefore decides to switch to the target cell. Alternatively, the target cell has signal coverage on the first frequency point, and the signal quality is very good. In other words, the target cell has signal coverage on multiple frequency points, including the first frequency point.

[0121] Optionally, the network access request may include information such as the terminal identification information of the terminal device, the identifier of the target cell, and the signal measurement value of the first frequency point.

[0122] In one possible implementation, after receiving a network access request, the network device can verify the identity information of the terminal device to ensure its legitimate access. The network device can allocate radio resources of the target cell to the terminal device, such as downlink and uplink resource blocks (RBs).

[0123] Optionally, network devices can send configuration information to each other, which may include system information of the target cell, cell configuration parameters, etc. After this, the network device can send an attach response to the terminal device to notify it to reselect to the target cell.

[0124] In one possible implementation, after receiving the network registration response, the terminal device can establish a new wireless connection on the target cell and begin using the new network resources for data transmission. Thus, it can be said that the terminal device is already camped on the first frequency point, or on the target cell. In this case, the first frequency point can be referred to as the terminal device's network registration frequency point.

[0125] Optionally, if the terminal device is camped on the initial cell before camping on the target cell, the terminal device needs to disconnect from the initial cell before establishing a new wireless connection with the target cell. The center frequency corresponding to the initial cell can be called the initial frequency. In other words, this process can be called the terminal device switching its camping frequency from the initial frequency to the first frequency.

[0126] In one possible implementation, after determining the first frequency point, the terminal device can still measure N1 candidate frequency points according to the scanning cycle, and update the number of candidate frequency points based on the period measurement value corresponding to each of the N1 frequency points. For example, assuming that in t2 consecutive scanning cycles, the period measurement value of frequency point n among the N1 candidate frequency points is less than the measurement threshold, then frequency point n is no longer considered a candidate frequency point, and the number of candidate frequency points is reduced to N1-1. Then, in the next scanning cycle, only the N1-1 candidate frequency points other than frequency point n need to be measured. If a reselection measurement instruction is received, then only the N1-1 candidate frequency points other than frequency point n need to be determined.

[0127] Optionally, if the terminal device stores N1 candidate frequency points in a cache, then frequency point n in the cache can be deleted. In this way, when a reselection measurement instruction is received, the terminal device can measure the N1-1 candidate frequency points other than frequency point n in the N1 candidate frequency points in the cache, and determine the new network-hosting frequency point from them.

[0128] This ensures that the frequency points referred to as candidate frequencies are those with larger signal measurement values, and enables terminal devices to efficiently determine the network access frequency point from the candidate frequencies.

[0129] In one possible implementation, after the terminal device has already camped on the first frequency point, if the signal measurement value of the first frequency point is detected to be less than a second threshold, the terminal device can measure M frequency points; based on the signal measurement values ​​of the M frequency points, N2 candidate frequency points are determined from the M frequency points. Further, based on the signal measurement values ​​of the N2 candidate frequency points, a second frequency point is determined from the N2 candidate frequency points. The terminal device can then send a handover request to the network device on the second frequency point to request a switch from the first frequency point to the second frequency point.

[0130] Wherein, the signal measurement values ​​of the N2 candidate frequency points are greater than the signal measurement values ​​of the frequency points other than the N2 candidate frequency points among the M frequency points; N2 is a positive integer less than M. Optionally, the value of N2 can be equal to the value of N1.

[0131] Optionally, if the signal measurement value of the first frequency point is less than the second threshold, the N1 candidate frequency points selected can be measured first to obtain updated signal measurement values ​​for the N1 candidate frequency points. If the updated signal measurement values ​​of all N1 candidate frequency points are less than the measurement threshold, then M frequency points are measured to determine N2 candidate frequency points from the M frequency points. Further, the second frequency point is determined from the N2 candidate frequency points.

[0132] Thus, if the signal measurement value of any of the N1 candidate frequency points is greater than the measurement threshold, and the signal measurement value of that candidate frequency point is also greater than the first threshold, it indicates that the current signal measurement value of that candidate frequency point is good, and the terminal device can select that candidate frequency point as the network access frequency point. If the signal measurement values ​​of all N1 candidate frequency points are less than the measurement threshold, it indicates that none of the N1 candidate frequency points can be accessed. Therefore, the terminal device can re-scan the entire frequency band, that is, measure the M frequency points.

[0133] As can be seen from the embodiments of this application, the terminal device can perform a full-band scan before reselection measurement, determining N1 candidate frequency points from M frequency points. These N1 candidate frequency points are the N1 frequency points with the largest selected signal measurement values. When the terminal device receives the reselection measurement instruction information, it can determine the candidate frequency point with the largest signal measurement value from the N1 candidate frequency points as the first frequency point, i.e., the frequency point to be stationed. In this way, the terminal device can avoid performing a full-band scan when performing reselection measurement, and instead determine the first frequency point from a smaller number of frequency points with better signal quality. This not only reduces the power consumption of the terminal device, but also improves the efficiency of reselection measurement.

[0134] Please see Figure 3 , Figure 3 This is a flowchart illustrating another reselection measurement method provided in an embodiment of this application. This reselection measurement method can be... Figure 1 The execution of this instruction can refer to any terminal device in the communication system shown, or it can refer to a device within the terminal device (such as a processor, chip, or chip system).

[0135] like Figure 3 As shown, this reselection measurement method may include, but is not limited to, the following steps:

[0136] S301 measures M frequency points to obtain the signal measurement values ​​of M frequency points.

[0137] Specifically, please refer to, for example Figure 2 The S201 shown and the previous description of S201 will not be repeated here.

[0138] S302, determine N1 candidate frequency points from M frequency points.

[0139] Among them, the signal measurement values ​​of the N1 candidate frequency points are greater than the signal measurement values ​​of the frequency points other than the N1 candidate frequency points among the M frequency points.

[0140] Specifically, please refer to, for example Figure 2 The S203 shown and the previous description of S203 will not be repeated here.

[0141] S303: Store the N1 candidate frequency points and the signal measurement values ​​of the N1 candidate frequency points to generate a candidate frequency point set.

[0142] Optionally, the candidate frequency set can be a list-based set that includes frequency information and signal quality values ​​for each candidate frequency.

[0143] Optionally, the candidate frequency set can be stored in the cache of the terminal device.

[0144] S304: In response to the reselection measurement indication information, determine whether a historical frequency point exists. If a historical frequency point exists, execute S305; otherwise, execute S309.

[0145] When the terminal device has historical frequency points:

[0146] S305 performs a frequency sweep of historical frequency points.

[0147] S306, determine whether the frequency scan on the historical frequency points was successful. If the frequency scan on the historical frequency points was successful, proceed to S307; otherwise, proceed to S309.

[0148] Frequency sweeping refers to the process by which a terminal detects available frequency points and channels within a specified frequency band by continuously varying the signal frequency. Optionally, the frequency sweeping performed by the terminal device may include, but is not limited to, the following processes: detecting available frequency points, measuring the RSRP and / or RSRQ of each available frequency point, and generating a candidate cell list, etc.

[0149] Optionally, a terminal device may fail to scan frequencies using historical frequency points for reasons including but not limited to the following: no signal was detected on the historical frequency point; the measured value of the signal detected on the historical frequency point was less than the measurement threshold; or the frequency scanning operation was not completed within the frequency scanning time configured by the network device.

[0150] S307 initiated a network access request on a historical frequency point.

[0151] Optionally, S308, if network registration fails on historical frequency points, then execute S309.

[0152] Among them, failure to establish a network connection on a historical frequency point indicates that the terminal device is unable to establish a wireless connection with the cell through the historical frequency point.

[0153] When the terminal device does not have a historical frequency point:

[0154] S309, Measure the N1 candidate frequency points in the candidate frequency point set and determine the first frequency point from them.

[0155] Among them, the signal measurement value of the first frequency point is greater than the signal measurement value of the candidate frequency points other than the first frequency point among the N1 candidate frequency points.

[0156] S310 initiates a network registration request on the first frequency.

[0157] Optionally, S311, if the network fails to register at the first frequency point / the signal measurement value at the first frequency point is less than the second threshold, S301 is executed.

[0158] Thus, if network registration fails on the first frequency point or the signal measurement value of the first frequency point is less than the second threshold, the terminal device can re-scan the entire frequency band of the M frequency points to re-select N2 candidate frequency points. When reselection measurement is required, the N2 candidate frequency points can be measured, and based on the signal measurement values ​​of the N2 candidate frequency points, a second frequency point can be determined from the N2 candidate frequency points. Then, the terminal device can initiate a network registration request to the network device on the second frequency point. Here, N2 can be equal to N1; the signal measurement values ​​of the N2 candidate frequency points are greater than the signal measurement values ​​of the other candidate frequency points among the M frequency points excluding the N2 candidate frequency points; and the signal measurement value of the second frequency point is greater than the signal measurement values ​​of the other candidate frequency points among the N2 candidate frequency points excluding the second frequency point itself.

[0159] Optionally, if the terminal device still fails to register on the second frequency, the terminal device can repeat the following steps: Figure 3 Follow the steps shown until a frequency point that can be successfully registered on the network is determined.

[0160] As can be seen, through the embodiments of this application, the terminal device can perform a full-band scan before reselection measurement, determining N1 candidate frequency points from M frequency points. These N1 candidate frequency points are the N1 frequency points with the largest selected signal measurement values. When the terminal device receives the reselection measurement instruction information, if the terminal device cannot successfully register on the network at the historical frequency point, it determines the first frequency point from the pre-determined N1 candidate frequency points with larger signal measurement values, and then initiates a network registration request on the first frequency point. In this way, the terminal device can avoid performing a full-band scan when performing reselection measurement, and instead determine the first frequency point from a smaller number of frequency points with better signal quality. This not only reduces the power consumption of the terminal device, but also improves the efficiency of reselection measurement.

[0161] The communication device provided in the embodiments of this application is described below.

[0162] Please see Figure 4 , Figure 4This is a schematic diagram of a communication device provided in an embodiment of this application. The communication device may include a processing unit 410 and a transceiver unit 420.

[0163] The processing unit 410 can be a device with processing capabilities, and may include one or more processors. The processor can be a general-purpose processor or a dedicated processor. The processor can be a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control the device (e.g., a host node, relay node, or chip), execute software programs, and process data from the software programs.

[0164] The transceiver unit 420 may be a device that has signal input (receive) or output (transmit) for transmitting signals to other devices or other components in the device.

[0165] A communication device can be a terminal device or a communication device, or it can be a device used to implement the functions of a terminal device or a communication device, such as a chip.

[0166] When the communication device is a terminal device, the communication device includes:

[0167] Processing unit 410 is configured to measure M frequency points; determine N1 candidate frequency points from the M frequency points based on the signal measurement values ​​of the M frequency points; the signal measurement values ​​of the N1 candidate frequency points are greater than the signal measurement values ​​of the frequency points other than the N1 candidate frequency points in the M frequency points; M and N1 are positive integers, and N1 is less than M; upon receiving reselection measurement indication information from the network device, measuring the N1 candidate frequency points, and determining a first frequency point from the N1 candidate frequency points based on the signal measurement values ​​of the N1 candidate frequency points; the signal measurement value of the first frequency point is greater than the signal measurement values ​​of the candidate frequency points other than the first frequency point in the N1 candidate frequency points.

[0168] The transceiver unit 420 is used to send a network access request to the network device on the first frequency point in response to the reselection measurement indication information.

[0169] In one possible implementation, the processing unit 410 is further configured to measure M frequency points if the signal measurement value of a historical frequency point is less than a measurement threshold; or to measure M frequency points upon receiving a power-on command or a reset command.

[0170] In one possible implementation, the M frequency points are the frequency points supported by the terminal device.

[0171] In one possible implementation, the processing unit 410 is further configured to measure M frequency points upon receiving a first signaling from the network device, the M frequency points including M1 frequency points supported by the terminal device and M2 frequency points indicated by the first signaling; M1 and M2 are positive integers.

[0172] In one possible implementation, the processing unit 410 is further configured to: determine K frequency points from the M frequency points based on the signal measurement values ​​of the M frequency points; the signal measurement values ​​of the K frequency points are greater than the signal measurement values ​​of the frequency points other than the K frequency points in the M frequency points; K is a positive integer less than M; measure the K frequency points for t consecutive scanning cycles to obtain the period measurement values ​​corresponding to the K frequency points; t is a positive integer; determine P frequency points from the K frequency points based on the period measurement values ​​corresponding to the K frequency points, the period measurement values ​​corresponding to the P frequency points are greater than a first threshold; P is a positive integer less than M; measure the frequency points other than the P frequency points in the K frequency points to obtain the signal measurement values ​​of the frequency points other than the P frequency points in the K frequency points; and determine N1 candidate frequency points based on the signal measurement values ​​of the frequency points other than the P frequency points in the K frequency points and the period measurement values ​​corresponding to the P frequency points.

[0173] In one possible implementation, the processing unit 410 is further configured to: determine K2 frequency points from the M frequency points based on the signal measurement values ​​of the M frequency points; the signal measurement values ​​of the K2 frequency points are greater than the signal measurement values ​​of the frequency points other than the K2 frequency points in the M frequency points; measure the K2 frequency points for t2 consecutive scanning cycles to obtain the period measurement values ​​corresponding to the K2 frequency points; determine R frequency points from the K2 frequency points based on the period measurement values ​​corresponding to the K2 frequency points, where the period measurement values ​​corresponding to the R frequency points are less than a measurement threshold; measure the frequency points other than the R frequency points in the K2 frequency points to obtain the signal measurement values ​​of the frequency points other than the R frequency points in the K2 frequency points; and determine N1 candidate frequency points based on the signal measurement values ​​of the frequency points other than the R frequency points in the K frequency points.

[0174] Where K2, t2, and R are positive integers, and K2 and R are both less than M.

[0175] In one possible implementation, the processing unit 410 is further configured to: measure M frequency points when the signal measurement value of the first frequency point is detected to be less than a second threshold; determine N2 candidate frequency points from the M frequency points based on the signal measurement values ​​of the M frequency points; the signal measurement values ​​of the N2 candidate frequency points are greater than the signal measurement values ​​of the frequency points other than the N2 candidate frequency points in the M frequency points; N2 is a positive integer less than M; determine a second frequency point from the N2 candidate frequency points based on the signal measurement values ​​of the N2 candidate frequency points; and switch the network-hosting frequency point from the first frequency point to the second frequency point.

[0176] In one possible implementation, the processing unit 410 is further configured to measure N1 candidate frequency points to obtain updated signal measurement values ​​for N1 candidate frequency points when the signal measurement value of the first frequency point is less than the second threshold; and to measure M frequency points when the updated signal measurement values ​​of all N1 candidate frequency points are less than the measurement threshold.

[0177] For a description of the technical effects of the communication device and any of its possible implementations, please refer to the description of the technical effects of the foregoing method embodiments; further details will not be repeated here.

[0178] According to the embodiments of this application, Figure 4 The various units in the communication device shown can be individually or entirely combined into one or more other units, or some of the units can be further divided into multiple functionally smaller units. This can achieve the same operation without affecting the technical effects of the embodiments of this application. The above units are based on logical function division. In practical applications, the function of one unit can also be implemented by multiple units, or the function of multiple units can be implemented by one unit.

[0179] This application also provides a computer device; please refer to [link / reference]. Figure 5 , Figure 5 This is a schematic diagram of the structure of a computer device provided in an embodiment of this application.

[0180] like Figure 5 As shown, the computer device may include: one or more processors 510, one or more memories 530, one or more communication interfaces 520, and a bus 540, wherein the processors 510, memories 530, and communication interfaces 520 are connected via the bus 540. The computer device may be the communication device described above.

[0181] The memory 530 is used to store a program; the processor 510 is used to execute the program stored in the memory. When the program is executed, the processor 510 performs the method as described in any possible implementation of the reselection measurement method.

[0182] It should be understood that, in the embodiments of this application, the memory 530 mentioned above includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or compact disc read-only memory (CDROM), as well as external memory other than computer memory and processor cache. A portion of the memory 530 may also include non-volatile random access memory. For example, the memory 530 may also store device type information.

[0183] The processor 510 described above can be one or more central processing units (CPUs). If the processor 510 is a CPU, it can be a single-core CPU or a multi-core CPU. The processor 510 can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor.

[0184] The steps performed in the foregoing embodiments can be based on the above. Figure 5 The computer device shown is implemented such that the processor 510 can execute any of the optional implementations of the reselection measurement method provided in this application, as described in any one of the embodiments, or it can execute the implementation of the communication device described in this application. Specifically, the processor 510 can implement... Figure 4 The processing unit 410 in the communication device shown has the following functions. The communication interface 520 can implement... Figure 4 The transceiver unit 420 in the communication device shown herein has the following functions. The memory 530 can provide a cache when the processor 510 executes the implementation of the communication device described in the embodiments of this application, and can also store the computer programs required by the processor 510 to execute the implementation of the communication device described in the embodiments of this application.

[0185] This application also provides a computer storage medium storing a computer program, the computer program including program instructions, which, when executed by a processor, enable the processor to implement the above-mentioned functions. Figure 2 and Figure 3 The method shown.

[0186] This application also provides a computer program product, which includes: instructions or a computer program; when the instructions or the computer program are executed, the above-mentioned functions can be achieved. Figure 2 and Figure 3 The method shown.

[0187] This application also provides a chip, which includes a processor. The processor executes instructions, enabling the chip to achieve the aforementioned... Figure 2 and Figure 3 The method shown is described above. Optionally, the chip also includes a communication interface for receiving or transmitting signals.

[0188] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by hardware related to computer programs. The computer programs can be stored in computer storage media, and when executed, they can implement the processes of the above method embodiments. The aforementioned computer storage media include various media capable of storing computer program code, such as read-only memory (ROM) or random access memory (RAM), magnetic disks, or optical disks.

Claims

1. A reselection measurement method, characterized in that, The method includes: Measure M frequency points; Based on the signal measurement values ​​of the M frequency points, N1 candidate frequency points are determined from the M frequency points; the signal measurement values ​​of the N1 candidate frequency points are greater than the signal measurement values ​​of the frequency points other than the N1 candidate frequency points among the M frequency points; M and N1 are positive integers, and N1 is less than M; Upon receiving a reselection measurement instruction from a network device, measurements are performed on the N1 candidate frequency points, and based on the signal measurement values ​​of the N1 candidate frequency points, a first frequency point is determined from the N1 candidate frequency points; the signal measurement value of the first frequency point is greater than the signal measurement values ​​of all candidate frequency points other than the first frequency point among the N1 candidate frequency points. In response to the reselection measurement indication information, a network access request is sent to the network device on the first frequency point.

2. The method according to claim 1, characterized in that, The measurement of M frequency points includes: If the signal measurement value at a historical frequency point is less than the measurement threshold, measurements are performed on M frequency points. Alternatively, upon receiving a power-on or reset command, measurements can be taken at M frequency points.

3. The method according to claim 1, characterized in that, The measurement of M frequency points includes: Upon receiving a first signaling from the network device, measurements are performed on M frequency points, including M1 frequency points supported by the terminal device and M2 frequency points indicated by the first signaling; M1 and M2 are positive integers.

4. The method according to any one of claims 1-3, characterized in that, The determination of N1 candidate frequency points from the M frequency points based on the signal measurement values ​​of the M frequency points includes: Based on the signal measurement values ​​of the M frequency points, K1 frequency points are determined from the M frequency points; the signal measurement values ​​of the K1 frequency points are greater than the signal measurement values ​​of the frequency points other than the K1 frequency points among the M frequency points; K1 is a positive integer less than M; For t1 consecutive scanning cycles, the K1 frequency points are measured to obtain the cycle measurement values ​​corresponding to the K1 frequency points; t1 is a positive integer; Based on the period measurement values ​​corresponding to the K1 frequency points, P frequency points are determined from the K1 frequency points, and the period measurement values ​​corresponding to the P frequency points are greater than the first threshold; P is a positive integer less than M; The frequency points other than the P frequency points among the K1 frequency points are measured to obtain the signal measurement values ​​of the frequency points other than the P frequency points among the K1 frequency points. Based on the signal measurement values ​​of the frequency points other than the P frequency points among the K1 frequency points, and the period measurement values ​​corresponding to the P frequency points, N1 candidate frequency points are determined.

5. The method according to any one of claims 1-3, characterized in that, The determination of N1 candidate frequency points from the M frequency points based on the signal measurement values ​​of the M frequency points includes: Based on the signal measurement values ​​of the M frequency points, K2 frequency points are determined from the M frequency points; the signal measurement values ​​of the K2 frequency points are greater than the signal measurement values ​​of the frequency points other than the K2 frequency points among the M frequency points; K2 is a positive integer less than M; For t2 consecutive scanning cycles, the K2 frequency points are measured to obtain the cycle measurement values ​​corresponding to the K2 frequency points; t2 is a positive integer; Based on the period measurement values ​​corresponding to the K2 frequency points, R frequency points are determined from the K2 frequency points, and the period measurement values ​​corresponding to the R frequency points are less than the measurement threshold; R is a positive integer less than M; The frequency points other than the R frequency points among the K2 frequency points are measured to obtain the signal measurement values ​​of the frequency points other than the R frequency points among the K2 frequency points; Based on the signal measurement values ​​of the frequency points other than the R frequency points among the K2 frequency points, N1 candidate frequency points are determined.

6. The method according to any one of claims 1-3, characterized in that, The method further includes: If the signal measurement value of the first frequency point is less than the second threshold, the M frequency points are measured. Based on the signal measurement values ​​of the M frequency points, N2 candidate frequency points are determined from the M frequency points; the signal measurement values ​​of the N2 candidate frequency points are greater than the signal measurement values ​​of the frequency points other than the N2 candidate frequency points among the M frequency points; N2 is a positive integer less than M; Based on the signal measurement values ​​of the N2 candidate frequency points, a second frequency point is determined from the N2 candidate frequency points; Switch the network frequency from the first frequency to the second frequency.

7. The method according to claim 6, characterized in that, The step of measuring the M frequency points when the measured signal value of the first frequency point is less than the second threshold includes: If the signal measurement value of the first frequency point is detected to be less than the second threshold, the N1 candidate frequency points are measured to obtain the updated signal measurement values ​​of the N1 candidate frequency points. If the updated signal measurement values ​​of the N1 candidate frequency points are all less than the measurement threshold, the M frequency points are measured.

8. A communication device, characterized in that, The communication device includes: A processing unit is configured to measure M frequency points; determine N1 candidate frequency points from the M frequency points based on the signal measurement values ​​of the M frequency points; the signal measurement values ​​of the N1 candidate frequency points are greater than the signal measurement values ​​of all other frequency points among the M frequency points; upon receiving a reselection measurement indication information from a network device, measure the N1 candidate frequency points, and determine a first frequency point from the N1 candidate frequency points based on the signal measurement values ​​of the N1 candidate frequency points; the signal measurement value of the first frequency point is greater than the signal measurement values ​​of all other candidate frequency points among the N1 candidate frequency points; M and N1 are positive integers, and N1 is less than M; The transceiver unit is configured to send a network access request to the network device on the first frequency point in response to the reselection measurement indication information.

9. A computer device, characterized in that, include: Memory, processor; where: The memory is used to store computer programs, the computer programs including program instructions; The processor is configured to invoke the program instructions to cause the communication device to perform the method as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the method as described in any one of claims 1-7.

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