Cell reselection method and device, communication equipment and storage medium

Abstract

The embodiment of the invention provides a cell reselection method and device, communication equipment and a storage medium. The cell reselection method is executed by the terminal, and whether cell reselection is carried out or not is determined according to the signal receiving strength and the signal receiving quality of an adjacent cell.

Description

Cell reselection method and device, communication equipment and storage medium Technical Field

[0001] The present disclosure relates to the field of wireless communication technology but is not limited to the field of wireless communication technology, and in particular to a cell reselection method and apparatus, a communication device, and a storage medium. Background Art

[0002] In a cellular mobile communication system, after a terminal camps on a cell, it can perform cell reselection. Cell reselection can ensure that the terminal in idle mode or inactive mode camps on a suitable cell to the greatest extent possible.

[0003] The cell where the terminal resides is usually called the serving cell of the terminal. In an idle mode or an inactive mode, the terminal can measure neighboring cell signals to determine whether cell reselection is required.

[0004] However, in the related art, the cell reselected by the terminal is not the optimal cell, and there is a problem of poor communication quality.

[0005] Summary of the Invention

[0006] Embodiments of the present disclosure provide a cell reselection method and apparatus, a communication device, and a storage medium.

[0007] A first aspect of the present disclosure provides a cell reselection method, performed by a terminal, comprising:

[0008] Determine whether to perform cell reselection based on the signal reception strength and signal reception quality of the neighboring cell.

[0009] A second aspect of the present disclosure provides a cell reselection method, which is performed by a network device and includes:

[0010] Send indication information to the terminal device, wherein the indication information is used to instruct the terminal device to determine whether to reselect a cell based on the signal reception strength and signal reception quality of the neighboring cell.

[0011] A third aspect of the present disclosure provides a cell reselection device, which is applied to a terminal and includes:

[0012] The reselection module is configured to determine whether to perform cell reselection based on the signal reception strength and signal reception quality of the neighboring cell.

[0013] A fourth aspect of the present disclosure provides a cell reselection apparatus, which is applied to a network device and includes:

[0014] The sending module is configured to send indication information to the terminal device, wherein the indication information is used to instruct the terminal device to determine whether to perform cell reselection based on the signal reception strength and signal reception quality of the neighboring cell.

[0015] A fifth aspect of the present disclosure provides a communication device, including:

[0016] processor;

[0017] a memory for storing instructions executable by the processor;

[0018] The processor is configured to implement the cell reselection method described in the first aspect or the second aspect when running the executable instructions.

[0019] A sixth aspect of the embodiments of the present disclosure provides a computer storage medium storing an executable program; after the executable program is executed by a processor, the cell reselection method described in the first or second aspect can be implemented.

[0020] The technical solution provided by the embodiments of the present disclosure is that the terminal considers the signal reception strength and signal reception quality of the neighboring cells at the same time to determine whether to perform cell reselection. This can balance the network environment and make the terminal more likely to reselect the best cell. This can prevent the situation where poor signal strength or poor signal quality affects the service quality of the terminal, thereby improving the user experience.

[0021] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] FIG1 is a schematic structural diagram of a wireless communication system according to an exemplary embodiment;

[0023] FIG2 is a schematic flow chart showing a cell reselection method according to an exemplary embodiment;

[0024] FIG3 is a schematic flow chart showing a cell reselection method according to an exemplary embodiment;

[0025] FIG4 is a schematic flow chart showing a cell reselection method according to an exemplary embodiment;

[0026] FIG5 is a schematic flow chart showing a cell reselection method according to an exemplary embodiment;

[0027] FIG6 is a schematic flow chart showing a cell reselection method according to an exemplary embodiment;

[0028] FIG7 is a schematic flow chart showing a cell reselection method according to an exemplary embodiment;

[0029] FIG8 is a schematic flow chart showing a cell reselection method according to an exemplary embodiment;

[0030] FIG9 is a schematic flow chart showing a cell reselection method according to an exemplary embodiment;

[0031] FIG10 is a schematic diagram showing a flow chart of a cell reselection method according to an exemplary embodiment;

[0032] FIG11 is a schematic flow chart showing a cell reselection method according to an exemplary embodiment;

[0033] FIG12 is a schematic flow chart showing a cell reselection method according to an exemplary embodiment;

[0034] FIG13 is a schematic structural diagram of a cell reselection device according to an exemplary embodiment;

[0035] FIG14 is a schematic structural diagram of a cell reselection device according to an exemplary embodiment;

[0036] FIG15 is a schematic structural diagram of a UE according to an exemplary embodiment;

[0037] Fig. 16 is a schematic structural diagram showing a network device according to an exemplary embodiment. DETAILED DESCRIPTION

[0038] Exemplary embodiments are described in detail herein, with examples illustrated in the accompanying drawings. When the following description refers to the drawings, identical numerals in different drawings represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with certain aspects of the present disclosure.

[0039] The terms used in the embodiments of the present disclosure are for the purpose of describing specific embodiments only and are not intended to limit the embodiments of the present disclosure. The singular forms "a," "the," and "the" used in the present disclosure are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0040] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0041] It is understandable that the description of each embodiment in this disclosure focuses on the differences between the embodiments, and the same or similar aspects thereof can be referenced with each other. For the sake of brevity, they will not be described one by one.

[0042] Please refer to Figure 1, which shows a schematic diagram of the structure of a wireless communication system provided by an embodiment of the present disclosure. As shown in Figure 1, the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include: a plurality of UEs 11 and a plurality of access devices 12.

[0043] Please refer to Figure 1, which shows a schematic diagram of the structure of a wireless communication system provided by an embodiment of the present disclosure. As shown in Figure 1, the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include: a plurality of terminals 11 and a plurality of network devices 12.

[0044] The terminal 11 may refer to a device that provides voice and / or data connectivity to a user. The terminal 11 may communicate with one or more core networks via a radio access network (RAN). The terminal 11 may be an IoT UE, such as a sensor device, a mobile phone (or "cellular" phone), and a computer with an IoT UE. For example, the terminal 11 may be a fixed, portable, pocket-sized, handheld, computer-built-in, or vehicle-mounted device. For example, a station (STA), subscriber unit, subscriber station, mobile station, mobile, remote station, access point, remote terminal, access terminal, user terminal, user agent, user device, or user equipment (UE). Alternatively, the terminal 11 may be a device on an unmanned aerial vehicle. Alternatively, the terminal 11 may be an in-vehicle device, such as a driving computer with wireless communication capabilities, or a wireless communication device connected to an external driving computer. Alternatively, the terminal 11 may also be a roadside device, for example, a street lamp, a traffic light or other roadside device with a wireless communication function.

[0045] The network device 12 may be a device for communicating with a terminal in a wireless communication system. The wireless communication system may be a fourth generation mobile communication technology (4G) system, also known as a long term evolution (LTE) system; or, the wireless communication system may be a 5G system, also known as a new radio (NR) system or a 5G NR system. Alternatively, the wireless communication system may be a next generation system of the 5G system. The access network in the 5G system may be referred to as NG-RAN (New Generation-Radio Access Network). Alternatively, an MTC system.

[0046] The network device 12 may be referred to as a wireless access network device, for example, including access network devices such as a base station (eg, an access point), which may refer to a device in an access network that communicates with a terminal via one or more cells over an air interface.

[0047] Among them, the network device 12 can be an evolved access device (eNB) adopted in a 4G system. Alternatively, the network device 12 can also be an access device (gNB) adopting a centralized distributed architecture in a 5G system. When the network device 12 adopts a centralized distributed architecture, it usually includes a centralized unit (CU) and at least two distributed units (DU). The centralized unit is provided with a protocol stack of a packet data convergence protocol (PDCP) layer, a radio link layer control protocol (RLC) layer, and a media access control (MAC) layer; the distributed unit is provided with a physical (PHY) layer protocol stack. The embodiment of the present disclosure does not limit the specific implementation method of the network device 12.

[0048] A wireless connection can be established between the network device 12 and the terminal 11 via a wireless air interface. In different implementations, the wireless air interface is a wireless air interface based on the fourth generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface; or, the wireless air interface can also be a wireless air interface based on the next generation mobile communication network technology standard of 5G.

[0049] In one embodiment, E2E (End to End) or D2D (Device to Device) connections may be established between the terminals 11. For example, in vehicle-to-everything (V2X) communication scenarios such as V2V (vehicle to vehicle), V2I (vehicle to Infrastructure), and V2P (vehicle to pedestrian).

[0050] Among them, when a connection is established between terminals, if one or more terminals act as a base station in the communication between terminals, then the one or more terminals can also be regarded as the above-mentioned network devices, and the other terminals can be regarded as the above-mentioned terminal 11. For example, in the vehicle network scenario, vehicle-mounted terminal A reports its capability information (such as antenna capability information) to another vehicle-mounted terminal B, and vehicle-mounted terminal B controls the communication between vehicle-mounted terminal A and vehicle-mounted terminal B based on its capability information. That is, vehicle-mounted terminal B acts as the lead vehicle in the vehicle network. At this time, vehicle-mounted terminal B can be regarded as the above-mentioned network device, and vehicle-mounted terminal A can be regarded as the above-mentioned terminal 11.

[0051] In one embodiment, the above-mentioned wireless communication system may further include a network management device 13. Several network devices are respectively connected to the network management device 13. The network management device 13 may be a core network device in the wireless communication system. For example, the network management device 13 may be a mobility management entity (MME) in the evolved packet core (EPC). Alternatively, the network management device may also be other core network devices, such as a serving gateway (SGW), a public data network gateway (PGW), a policy and charging rules function (PCRF), or a home subscriber server (HSS). The embodiment of the present disclosure does not limit the implementation form of the network management device 13.

[0052] To facilitate understanding by those skilled in the art, the embodiments of the present disclosure list multiple implementation methods to clearly illustrate the technical solutions of the embodiments of the present disclosure. Of course, those skilled in the art will understand that the multiple embodiments provided in the embodiments of the present disclosure can be implemented individually, or can be implemented together with the methods of other embodiments in the embodiments of the present disclosure, or can be implemented together with some methods in other related technologies individually or in combination; the embodiments of the present disclosure do not limit this.

[0053] In the current 3rd Generation Partnership Project (3GPP) protocol, the cell reselection scheme is based on whether the serving cell reselection quality threshold (threshServingLowQ) is broadcast according to the network configuration, and reselection is performed based on RSRP (Reference Singnal Received Power) or RSRQ (Reference Singnal Received Power). Sometimes the selected cell has a high RSRQ but a low RSRP (threshServingLowQ is broadcast), and sometimes the selected cell has a high RSRP but a poor RSRQ (threshServingLowQ is not broadcast or it is on the same frequency or priority frequency). As a result, the reselected cell is not the optimal cell.

[0054] The following explains some terms used in the embodiments of the present disclosure to help those skilled in the art understand their functions.

[0055] The serving cell (also called the source cell or current cell) refers to the cell where the terminal device is currently located, or the cell that is providing data transmission to the terminal. The serving cell can be the cell that the terminal initially accesses or the cell that the terminal accessed during the last cell reselection process.

[0056] The neighboring cell refers to a cell adjacent to the current serving cell of the terminal.

[0057] The signal reception strength of the neighboring cell refers to the strength of the signal sent by the network device corresponding to the neighboring cell received by the terminal.

[0058] The signal reception quality of the neighboring cell refers to the quality of the signal sent by the network device corresponding to the neighboring cell and received by the terminal.

[0059] The signal reception strength of the serving cell refers to the strength of the signal sent by the network device corresponding to the serving cell and received by the terminal.

[0060] The signal reception quality of the serving cell refers to the quality of the signal sent by the network device corresponding to the serving cell and received by the terminal.

[0061] The signal sent by the network device may be a reference signal or a data transmission signal.

[0062] The serving cell and the neighboring cell have the same priority, which means that the neighboring cell may be a co-frequency cell of the serving cell, or a different-frequency cell with the same priority as the serving cell.

[0063] The priority of the neighboring cell is higher than that of the serving cell, indicating that the neighboring cell is an inter-frequency neighboring cell or an inter-system cell with a higher priority than that of the serving cell.

[0064] The priority of the neighboring cell is lower than that of the serving cell, indicating that the neighboring cell is an inter-frequency cell or an inter-system cell with a lower priority than that of the serving cell.

[0065] The cell reselection parameters refer to parameters used by the terminal when performing cell reselection. For example, the cell reselection parameters include the serving cell reselection quality threshold (threshServingLowQ). The cell reselection parameters can be obtained by the terminal through a System Information Block (SIB) broadcast and / or through Radio Resource Control (RRC) signaling. The system information block can be SIB2, SIB4, or SIB5, etc. The RRC signaling can be an RRC release message, etc.

[0066] FIG2 is a flow chart of a cell reselection method according to an exemplary embodiment. The cell reselection method is executed by a terminal in the wireless communication system shown in FIG1. ​​As shown in FIG2, the cell reselection method may include:

[0067] S201: Determine whether to perform cell reselection based on the signal reception strength and signal reception quality of the neighboring cell.

[0068] The terminal provided in this embodiment may be various types of terminals, such as a mobile phone, a tablet computer, a wearable device, a vehicle-mounted terminal and / or an Internet of Things terminal.

[0069] The signal reception strength and signal reception quality of a neighboring cell may be used together to determine whether the terminal reselects from the serving cell to the neighboring cell.

[0070] The greater the signal reception strength and the higher the signal reception quality of the neighboring cell, the higher the probability that the terminal reselects from the serving cell to the neighboring cell.

[0071] In some examples, the signal reception strength may be reference signal reception power (RSRP); the signal reception quality may be reference signal reception quality (RSRQ) and / or signal to interference plus noise ratio (SINR), etc.

[0072] In some examples, whether a neighboring cell meets the cell reselection conditions is determined based on the signal reception strength and signal reception quality of the neighboring cell; if the neighboring cell meets the cell reselection conditions, the terminal is determined to reselect to the neighboring cell; if the neighboring cell does not meet the cell reselection conditions, the terminal is determined not to reselect to the neighboring cell.

[0073] In some examples, when the signal reception strength of the neighboring cell is greater than a preset strength threshold, and the signal reception quality of the neighboring cell is greater than a preset quality threshold, it is determined that the neighboring cell meets the cell reselection condition; otherwise, it is determined that the neighboring cell does not meet the cell reselection condition.

[0074] In some examples, if multiple neighboring cells meet the cell reselection conditions, for each neighboring cell, a weighted calculation is performed on the signal reception strength and signal reception quality of the neighboring cell based on a first weight corresponding to the signal reception strength and a second weight corresponding to the signal reception quality to obtain a quality assessment value for the neighboring cell. The multiple neighboring cells that meet the cell reselection conditions are ranked according to their quality assessment values, and the neighboring cell with the highest ranked quality assessment value is selected as the cell to which the terminal reselects.

[0075] The first weight corresponding to the signal reception strength and the second weight corresponding to the signal reception quality may be set based on expert experience or experimental results, and are not specifically limited here.

[0076] In the cell reselection method provided by the embodiment of the present disclosure, the terminal simultaneously considers the signal reception strength and signal reception quality of the neighboring cell to determine whether to perform cell reselection. This can balance the network environment and make it more likely that the terminal will reselect the best cell. This can prevent the occurrence of poor signal strength or poor signal quality that affects the service quality of the terminal, thereby improving communication quality and user experience.

[0077] In some embodiments, the method further comprises:

[0078] Receive indication information sent by a network device, wherein the indication information is used to instruct the terminal device to determine whether to reselect a cell based on the signal reception strength and signal reception quality of a neighboring cell.

[0079] Specifically, network signaling carrying the indication information is received from a network device, wherein the network signaling includes at least one of the following: downlink control information (DCI), media access control (MAC) control element (CE), and radio resource control (RRC) signaling.

[0080] In one embodiment, a cell reselection method is provided. The cell reselection method is performed by a terminal in the wireless communication system shown in FIG1 . The method may include:

[0081] Whether to perform cell reselection is determined according to at least one of the signal reception strength and the signal reception quality of the serving cell and the signal reception strength and the signal reception quality of the neighboring cell.

[0082] In some examples, when the signal reception strength of the serving cell can meet the signal strength requirement and the signal reception quality of the serving cell can meet the signal quality requirement, it is determined not to perform cell reselection.

[0083] In some examples, when the signal reception strength of the serving cell cannot meet the signal strength requirement and / or the signal reception quality of the serving cell cannot meet the signal quality requirement, whether to perform cell reselection is determined based on the signal reception strength and signal reception quality of the neighboring cell.

[0084] In some examples, when the signal reception strength of the serving cell is less than the signal reception strength of the neighboring cell, whether to perform cell reselection is determined based on whether the signal reception quality of the serving cell is less than the signal reception quality of the neighboring cell and / or whether the signal reception quality of the neighboring cell is greater than a first quality threshold.

[0085] In other examples, when the signal reception quality of the serving cell is lower than the signal reception quality of the neighboring cell, whether to perform cell reselection is determined based on whether the signal reception strength of the serving cell is lower than the signal reception strength of the neighboring cell and / or whether the signal reception strength of the neighboring cell is greater than a first strength threshold.

[0086] In some other examples, when the signal reception strength of the serving cell is less than the second strength threshold and the signal reception strength of the neighboring cell is greater than the first strength threshold, whether to perform cell reselection is determined based on whether the signal reception quality of the serving cell is less than the signal reception quality of the neighboring cell and / or whether the signal reception quality of the neighboring cell is greater than the first quality threshold.

[0087] In some further examples, when the signal reception quality of the serving cell is less than the second quality threshold and the signal reception quality of the neighboring cell is greater than the first quality threshold, whether to perform cell reselection is determined based on whether the signal reception strength of the serving cell is less than the signal reception strength of the neighboring cell and / or whether the signal reception strength of the neighboring cell is greater than the first strength threshold.

[0088] The first strength threshold, the second strength threshold, the first quality threshold, and the second quality threshold may all be parameters related to cell reselection configured by the network.

[0089] The determining whether to perform cell reselection based on whether the signal reception quality of the serving cell is lower than the signal reception quality of the neighboring cell and / or whether the signal reception quality of the neighboring cell is greater than the first quality threshold may include:

[0090] If the signal reception quality of the serving cell is lower than the signal reception quality of the neighboring cell or the signal reception quality of the neighboring cell is higher than the first quality threshold, it is determined that cell reselection is to be performed; or, if the signal reception quality of the serving cell is higher than or equal to the signal reception quality of the neighboring cell or the signal reception quality of the neighboring cell is lower than or equal to the first quality threshold, it is determined that cell reselection is not to be performed.

[0091] The determining whether to perform cell reselection based on whether the signal reception strength of the serving cell is less than the signal reception strength of the neighboring cell and / or whether the signal reception strength of the neighboring cell is greater than the first strength threshold may include:

[0092] If the signal reception strength of the serving cell is less than the signal reception strength of the neighboring cell or the signal reception strength of the neighboring cell is greater than the first strength threshold, it is determined that cell reselection is to be performed; or, if the signal reception strength of the serving cell is greater than or equal to the signal reception strength of the neighboring cell or the signal reception strength of the neighboring cell is less than or equal to the first strength threshold, it is determined that cell reselection is not to be performed.

[0093] In one embodiment, as shown in FIG3 , a flow chart of a cell reselection method according to an exemplary embodiment is shown. The cell reselection method is executed by a terminal in the wireless communication system shown in FIG1 ; the method may include:

[0094] S301: Determine whether to perform cell reselection based on a comparison result of priorities between a serving cell and a neighboring cell of a terminal, a signal reception strength and a signal reception quality of the neighboring cell.

[0095] In some examples, the signal reception strength may be a reference signal reception power; the signal reception quality may be a reference signal reception quality and / or a signal to interference plus noise ratio, etc.

[0096] The comparison results of the priorities of the serving cell and the neighboring cell can be divided into three cases: the priorities of the serving cell and the neighboring cell are the same, the priority of the neighboring cell is higher than the priority of the serving cell, and the priority of the neighboring cell is lower than the priority of the serving cell.

[0097] When the serving cell and the neighboring cell have the same priority, the neighboring cell can be a co-frequency cell of the serving cell, or a different-frequency cell with the same priority as the serving cell. When the neighboring cell's priority is higher than that of the serving cell, the neighboring cell is a different-frequency neighboring cell or a different-system cell with a higher priority than the serving cell. When the neighboring cell's priority is lower than that of the serving cell, the neighboring cell is a different-frequency cell or a different-system cell with a lower priority than the serving cell.

[0098] In some examples, the serving cell and the neighboring cell have the same priority, and whether to perform cell reselection can be determined based on whether the signal reception strength of the neighboring cell is greater than the signal reception strength of the serving cell, and whether the signal reception quality of the neighboring cell is greater than the signal reception quality of the serving cell.

[0099] Specifically, the serving cell and the neighboring cell have the same priority. If the signal reception strength of the neighboring cell is greater than the signal reception strength of the serving cell, and the signal reception quality of the neighboring cell is greater than the signal reception quality of the serving cell, it is determined that cell reselection is performed; if the signal reception strength of the neighboring cell is less than or equal to the signal reception strength of the serving cell, and / or the signal reception quality of the neighboring cell is less than or equal to the signal reception quality of the serving cell, it is determined that cell reselection is not performed.

[0100] In other examples, the priority of the neighboring cell is higher than that of the serving cell, and whether to perform cell reselection can be determined based on whether the signal reception strength of the neighboring cell is greater than the first strength threshold and whether the signal reception quality of the neighboring cell is greater than the first quality threshold.

[0101] Specifically, the priority of the neighboring cell is higher than the priority of the serving cell. If the signal reception strength of the neighboring cell is greater than the first strength threshold, and the signal reception quality of the neighboring cell is greater than the first quality threshold, it is determined to perform cell reselection; if the signal reception strength of the neighboring cell is less than or equal to the first strength threshold, and / or the signal reception quality of the neighboring cell is less than or equal to the first quality threshold, it is determined not to perform cell reselection.

[0102] In some other examples, the priority of the neighboring cell is lower than the priority of the serving cell. When the signal reception strength of the serving cell is less than the second strength threshold or the signal reception quality of the serving cell is less than the second quality threshold, it can be determined whether to reselect the cell based on whether the signal reception strength of the neighboring cell is greater than the third strength threshold and whether the signal reception quality of the neighboring cell is greater than the third quality threshold.

[0103] Specifically, the priority of the neighboring cell is lower than the priority of the serving cell. When the signal reception strength of the serving cell is less than the second strength threshold or the signal reception quality of the serving cell is less than the second quality threshold, if the signal reception strength of the neighboring cell is greater than the third strength threshold, and the signal reception quality of the neighboring cell is greater than the third quality threshold, it is determined to perform cell reselection; if the signal reception strength of the neighboring cell is less than or equal to the third strength threshold, and / or the signal reception quality of the neighboring cell is less than or equal to the third quality threshold, it is determined not to perform cell reselection.

[0104] The first strength threshold, the second strength threshold, the third strength threshold, the first quality threshold, the second quality threshold, and the third quality threshold may all be parameters related to cell reselection configured by the network.

[0105] In the disclosed embodiment, the terminal determines whether to reselect a cell based on the comparison result of the priority of the serving cell and the neighboring cell, and comprehensively considers the signal reception strength and signal reception quality of the neighboring cell. This further makes the quality of the reselected cell more able to meet the residency requirements and improves the communication quality.

[0106] In one embodiment, as shown in FIG4 , a flow chart of a cell reselection method according to an exemplary embodiment is shown. The cell reselection method is executed by a terminal in the wireless communication system shown in FIG1 . The method may include:

[0107] S401: The serving cell and the neighboring cell have the same priority. Determine whether to perform cell reselection based on the signal reception strength of the serving cell and the signal reception strength of the neighboring cell, and based on at least one of a comparison result of the signal reception quality between the serving cell and the neighboring cell and the signal reception quality of the neighboring cell.

[0108] In some examples, the signal reception strength may be a reference signal reception power; the signal reception quality may be a reference signal reception quality and / or a signal to interference plus noise ratio, etc.

[0109] Specifically, when the priorities of the serving cell and the neighboring cell are the same, the R value of the serving cell is determined according to the signal reception strength of the serving cell, and the R value of the neighboring cell is determined according to the signal reception strength of the neighboring cell; based on the comparison result of the signal reception quality of the serving cell and the neighboring cell and at least one of the signal reception qualities of the neighboring cell, as well as the R value of the serving cell and the R value of the neighboring cell, it is determined whether to perform cell reselection.

[0110] In the case where the priority of the serving cell and the neighboring cell is the same, the R value of the serving cell and the R value of the neighboring cell are determined by the following formula:

[0111] Rs=Qmeas,s+Qhyst-Qoffsettemp;

[0112] Rn=Qmeas,n-Qoffset-Qoffsettemp;

[0113] Where Rs is the R value of the serving cell, Rn is the R value of the neighboring cell, Qmeas,s is the RSRP measurement value of the serving cell, Qmeas,n is the RSRP measurement value of the neighboring cell, Qhyst is the cell reselection hysteresis value, Qoffsettemp is the temporary offset value, and Qoffset is the offset value.

[0114] For intra-frequency cells, if Qoffsets,n is configured, Qoffset is Qoffsets,n; if Qoffsets,n is not configured, Qoffset is 0. For inter-frequency cells, if Qoffsets,n is configured, Qoffset is Qoffsets,n + Qoffsetfrequency; otherwise, Qoffset is Qoffsetfrequency.

[0115] In some examples, the R value of the neighboring cell is greater than the R value of the serving cell, and whether to perform cell reselection is determined based on at least one of a comparison result of the signal reception quality of the serving cell and the neighboring cell and the signal reception quality of the neighboring cell.

[0116] Specifically, the R value of the neighboring cell is greater than the R value of the serving cell. If the signal reception quality of the serving cell is less than the signal reception quality of the neighboring cell or the signal reception quality of the neighboring cell is greater than the first quality threshold, it is determined to perform cell reselection; if the signal reception quality of the serving cell is greater than or equal to the signal reception quality of the neighboring cell and / or the signal reception quality of the neighboring cell is less than or equal to the first quality threshold, it is determined not to perform cell reselection.

[0117] In this embodiment, if the terminal has been stationed in the serving cell for more than a preset time length (for example, the preset time length is 1 second), within the reselection time period TreselectionRAT, the R value of the neighboring cell is greater than the R value of the serving cell, and the signal reception quality of the neighboring cell is greater than the signal reception quality of the serving cell (or, the signal reception quality of the neighboring cell is greater than the first quality threshold), then it is determined to perform cell reselection.

[0118] In some embodiments, when the priority of the serving cell and the neighboring cell is the same, the terminal determines to reselect to the target cell among the neighboring cells, where the target cell is: a neighboring cell whose R value is greater than that of the serving cell and has the largest R value, and whose signal reception quality is greater than that of the serving cell (or, the signal reception quality of the neighboring cell is greater than the first quality threshold).

[0119] In one embodiment, as shown in FIG5 , a flow chart of a cell reselection method according to an exemplary embodiment is shown. The cell reselection method is executed by a terminal in the wireless communication system shown in FIG1 . The method may include:

[0120] S501: The priority of the neighboring cell is higher than that of the serving cell. Whether to perform cell reselection is determined based on the signal reception strength and signal reception quality of the neighboring cell and whether the terminal receives a cell reselection parameter.

[0121] In some examples, the signal reception strength may be a reference signal reception power; the signal reception quality may be a reference signal reception quality and / or a signal to interference plus noise ratio, etc.

[0122] The cell reselection parameter refers to a parameter used by the terminal when performing cell reselection. For example, the cell reselection parameter is a serving cell reselection quality threshold (threshServingLowQ).

[0123] In some examples, the cell reselection parameter may be obtained by the terminal through a System Information Block (SIB) broadcast and / or through Radio Resource Control (RRC) signaling. The System Information Block may be SIB2, SIB4, or SIB5, etc. The RRC signaling may be an RRC release message, etc.

[0124] In some examples, when the terminal receives threshServingLowQ broadcast in the system information block, it determines whether to perform cell reselection based on whether the cell selection signal reception quality (Cell selection quality value, Squal for short) of the neighboring cell is greater than the first reselection quality threshold and whether the signal reception strength of the neighboring cell is greater than the first strength threshold.

[0125] In other examples, when the terminal receives threshServingLowQ broadcast in the system information block, it determines whether to perform cell reselection based on whether the cell selection signal reception quality of the neighboring cell is greater than the first reselection quality threshold and whether the signal reception strength of the neighboring cell is greater than the signal reception strength of the serving cell.

[0126] In some other examples, when the terminal does not receive the threshServingLowQ broadcast in the system information block, it determines whether to perform cell reselection based on whether the cell selection signal reception strength (Cell selection RX level value, Srxlev for short) of the neighboring cell is greater than the first reselection strength threshold, and whether the signal reception quality of the neighboring cell is greater than the first quality threshold.

[0127] In some further examples, when the terminal does not receive the threshServingLowQ broadcast in the system information block, it determines whether to perform cell reselection based on whether the cell selection signal reception strength of the neighboring cell is greater than the first reselection strength threshold and whether the signal reception quality of the neighboring cell is greater than the signal reception quality of the serving cell.

[0128] The first reselection strength threshold, the first reselection quality threshold, the first strength threshold, and the first quality threshold may all be parameters related to cell reselection configured by the network.

[0129] In one embodiment, as shown in FIG6 , a flow chart of a cell reselection method according to an exemplary embodiment is shown. The cell reselection method is executed by a terminal in the wireless communication system shown in FIG1 . The method may include:

[0130] S601: The priority of the neighboring cell is higher than that of the serving cell. Determine whether to perform cell reselection based on the signal reception strength and signal reception quality of the serving cell, the signal reception strength and signal reception quality of the neighboring cell, and whether the terminal receives the cell reselection parameter.

[0131] In some examples, the signal reception strength may be a reference signal reception power; the signal reception quality may be a reference signal reception quality and / or a signal to interference plus noise ratio, etc.

[0132] In some examples, when the terminal receives threshServingLowQ broadcast in the system information block, it determines whether to perform cell reselection based on whether the cell selection signal reception quality of the neighboring cell is greater than the first reselection quality threshold, whether the signal reception strength of the neighboring cell is greater than the first strength threshold, and whether the signal reception quality of the neighboring cell is greater than the signal reception quality of the serving cell.

[0133] Specifically, when the terminal receives the threshServingLowQ broadcast in the system information block, if the cell selection signal reception quality of the neighboring cell is greater than the first reselection quality threshold, the signal reception strength of the neighboring cell is greater than the first strength threshold, and the signal reception quality of the neighboring cell is greater than the signal reception quality of the serving cell, it is determined to perform cell reselection; if the cell selection signal reception quality of the neighboring cell is less than or equal to the first reselection quality threshold, and / or the signal reception strength of the neighboring cell is less than or equal to the first strength threshold, and / or the signal reception quality of the neighboring cell is greater than the signal reception quality of the serving cell, it is determined not to perform cell reselection.

[0134] In other examples, when the terminal receives threshServingLowQ broadcast in the system information block, it determines whether to perform cell reselection based on whether the cell selection signal reception quality of the neighboring cell is greater than the first reselection quality threshold, whether the signal reception strength of the neighboring cell is greater than the signal reception strength of the serving cell, and whether the signal reception quality of the neighboring cell is greater than the signal reception quality of the serving cell.

[0135] Specifically, when the terminal receives the threshServingLowQ broadcast in the system information block, if the cell selection signal reception quality of the neighboring cell is greater than the first reselection quality threshold, the signal reception strength of the neighboring cell is greater than the signal reception strength of the serving cell, and the signal reception quality of the neighboring cell is greater than the signal reception quality of the serving cell, it is determined to perform cell reselection; if the cell selection signal reception quality of the neighboring cell is less than or equal to the first reselection quality threshold, and / or the signal reception strength of the neighboring cell is greater than the signal reception strength of the serving cell, and / or the signal reception quality of the neighboring cell is less than or equal to the signal reception quality of the serving cell, it is determined not to perform cell reselection.

[0136] In some other examples, when the terminal does not receive the threshServingLowQ broadcast in the system information block, it is determined whether to perform cell reselection based on whether the cell selection signal reception strength of the neighboring cell is greater than the first reselection strength threshold, whether the signal reception quality of the neighboring cell is greater than the first quality threshold, and whether the signal reception strength of the neighboring cell is greater than the signal reception strength of the serving cell.

[0137] Specifically, when the terminal does not receive the threshServingLowQ broadcast in the system information block, if the cell selection signal reception strength of the neighboring cell is greater than the first reselection strength threshold, the signal reception quality of the neighboring cell is greater than the first quality threshold, and the signal reception strength of the neighboring cell is greater than the signal reception strength of the serving cell, it is determined to perform cell reselection; if the cell selection signal reception strength of the neighboring cell is less than or equal to the first reselection strength threshold, and / or the signal reception quality of the neighboring cell is less than or equal to the first quality threshold, and / or the signal reception strength of the neighboring cell is less than or equal to the signal reception strength of the serving cell, it is determined not to perform cell reselection.

[0138] In some further examples, when the terminal does not receive the threshServingLowQ broadcast in the system information block, it determines whether to perform cell reselection based on whether the cell selection signal reception strength of the neighboring cell is greater than the first reselection strength threshold, whether the signal reception quality of the neighboring cell is greater than the signal reception quality of the serving cell, and whether the signal reception strength of the neighboring cell is greater than the signal reception strength of the serving cell.

[0139] Specifically, when the terminal does not receive the threshServingLowQ broadcast in the system information block, if the cell selection signal reception strength of the neighboring cell is greater than the first reselection strength threshold, the signal reception quality of the neighboring cell is greater than the signal reception quality of the serving cell, and the signal reception strength of the neighboring cell is greater than the signal reception strength of the serving cell, it is determined to perform cell reselection; if the cell selection signal reception strength of the neighboring cell is less than or equal to the first reselection strength threshold, and / or the signal reception quality of the neighboring cell is less than or equal to the signal reception quality of the serving cell, and / or the signal reception strength of the neighboring cell is less than or equal to the signal reception strength of the serving cell, it is determined not to perform cell reselection.

[0140] In one embodiment, as shown in FIG7 , a flow chart of a cell reselection method according to an exemplary embodiment is shown. The cell reselection method is executed by a terminal in the wireless communication system shown in FIG1 . The method may include:

[0141] S701: The priority of the neighboring cell is higher than the priority of the serving cell and the terminal receives a cell reselection parameter, and determines whether to perform cell reselection based on the signal reception quality of the neighboring cell, and at least one of the comparison result of the signal reception strength between the serving cell and the neighboring cell and the signal reception strength of the neighboring cell.

[0142] In some examples, the signal reception strength may be a reference signal reception power; the signal reception quality may be a reference signal reception quality and / or a signal to interference plus noise ratio, etc.

[0143] In some examples, the priority of the neighboring cell is higher than the priority of the serving cell and the terminal receives ThreshServingLowQ. If the terminal has been stationed in the serving cell for more than a preset time, the Squal of the neighboring cell within the reselection time period TreselectionRAT is greater than the first reselection quality threshold, and the signal reception strength of the serving cell is less than the signal reception strength of the neighboring cell, it is determined to perform cell reselection.

[0144] In some examples, the priority of the neighboring cell is higher than the priority of the serving cell and the terminal receives ThreshServingLowQ. If the terminal has been staying in the serving cell for more than a preset time, the Squal of the neighboring cell within the reselection time period TreselectionRAT is greater than the first reselection quality threshold, and the signal reception strength of the neighboring cell is greater than the first strength threshold, it is determined to perform cell reselection.

[0145] In some examples, when the priority of the neighboring cell is higher than the priority of the serving cell and the terminal receives ThreshServingLowQ, if the terminal has been stationed in the serving cell for more than a preset time, within the reselection time period TreselectionRAT, the Squal of the neighboring cell is less than or equal to the first reselection quality threshold, the signal reception strength of the serving cell is less than the signal reception strength of the neighboring cell, and / or the signal reception strength of the neighboring cell is less than or equal to the first strength threshold, it is determined that cell reselection is not performed.

[0146] In some examples, the comparison result of the signal reception strength of the serving cell and the neighboring cell may be: the comparison result of the sum of the signal reception strength of the neighboring cell and the signal reception strength bias value corresponding to the neighboring cell and the signal reception strength of the serving cell.

[0147] The signal reception strength offset value corresponding to the neighboring cell is used to indicate the received signal strength offset of the neighboring cell. Increasing the signal reception strength offset value of a cell makes it more likely to become a suitable reselection cell, that is, the difficulty of reselecting to the cell is reduced, and vice versa.

[0148] The signal reception strength bias value may be configured by the terminal or the network device. If the signal reception strength bias value is not configured, the terminal defaults to a signal reception strength bias value of 0.

[0149] In one embodiment, as shown in FIG8 , a flow chart of a cell reselection method according to an exemplary embodiment is shown. The cell reselection method is executed by a terminal in the wireless communication system shown in FIG1 . The method may include:

[0150] S801: If the priority of the neighboring cell is higher than that of the serving cell and the terminal has not received a cell reselection parameter, determine whether to perform cell reselection based on the signal reception strength of the neighboring cell, and based on at least one of a comparison result of the signal reception quality between the serving cell and the neighboring cell and the signal reception quality of the neighboring cell.

[0151] In some examples, the signal reception strength may be a reference signal reception power; the signal reception quality may be a reference signal reception quality and / or a signal to interference plus noise ratio, etc.

[0152] In some examples, the priority of the neighboring cell is higher than the priority of the serving cell and the terminal does not receive ThreshServingLowQ. If the terminal has been stationed in the serving cell for more than a preset time, the Srxlev of the neighboring cell within the reselection time period TreselectionRAT is greater than the first reselection strength threshold, and the signal reception quality of the serving cell is less than the signal reception quality of the neighboring cell, it is determined to perform cell reselection.

[0153] In some examples, the priority of the neighboring cell is higher than the priority of the serving cell and the terminal does not receive ThreshServingLowQ. If the terminal has been stationed in the serving cell for more than a preset time, the Srxlev of the neighboring cell within the reselection time period TreselectionRAT is greater than the first reselection strength threshold, and the signal reception quality of the neighboring cell is greater than the first quality threshold, it is determined to perform cell reselection.

[0154] In some examples, when the priority of a neighboring cell is higher than the priority of a serving cell and the terminal does not receive ThreshServingLowQ, if the terminal has been stationed in the serving cell for more than a preset time, within the reselection time period TreselectionRAT, the Srxlev of the neighboring cell is less than or equal to the first reselection strength threshold, the signal reception quality of the serving cell is less than the signal reception quality of the neighboring cell, and / or the signal reception quality of the neighboring cell is less than or equal to the first strength threshold, it is determined that cell reselection is not performed.

[0155] In some examples, the comparison result of the signal reception quality of the serving cell and the neighboring cell may be: the comparison result of the sum of the signal reception quality of the neighboring cell and the signal reception quality offset value corresponding to the neighboring cell and the signal reception quality of the serving cell.

[0156] The signal reception quality offset value corresponding to the neighboring cell is used to indicate the received signal quality offset of the neighboring cell. Increasing the signal reception quality offset value of a cell makes it more likely to become a suitable reselection cell, i.e., the difficulty of reselecting to the cell is reduced, and vice versa.

[0157] The signal reception quality bias value may be configured by the terminal or the network device. If the signal reception quality bias value is not configured, the terminal defaults to a signal reception quality bias value of 0.

[0158] In one embodiment, as shown in FIG9 , a flow chart of a cell reselection method according to an exemplary embodiment is shown. The cell reselection method is executed by a terminal in the wireless communication system shown in FIG1 . The method may include:

[0159] S901: The priority of the neighboring cell is lower than that of the serving cell. Determine whether to perform cell reselection based on the signal reception strength and signal reception quality of the neighboring cell, the signal reception strength and signal reception quality of the serving cell, and whether the terminal receives the cell reselection parameter.

[0160] In some examples, the signal reception strength may be a reference signal reception power; the signal reception quality may be a reference signal reception quality and / or a signal to interference plus noise ratio, etc.

[0161] The cell reselection parameter refers to a parameter used by the terminal when performing cell reselection. For example, the cell reselection parameter is a serving cell reselection quality threshold (threshServingLowQ).

[0162] In some examples, the cell reselection parameter may be acquired by the terminal through a system message block broadcast and / or acquired through radio resource control signaling. The system message block may be SIB2, SIB4, or SIB5, etc. The RRC signaling may be an RRC release message, etc.

[0163] In some examples, when the terminal receives threshServingLowQ broadcast in the system information block, it determines whether to perform cell reselection based on whether the cell selection signal reception quality of the serving cell is less than the serving cell reselection quality threshold, whether the cell selection signal reception quality of the neighboring cell is greater than the second reselection quality threshold, and whether the signal reception strength of the neighboring cell is greater than the second strength threshold.

[0164] In other examples, when the terminal receives threshServingLowQ broadcast in the system information block, it determines whether to perform cell reselection based on whether the cell selection signal reception quality of the serving cell is less than the serving cell reselection quality threshold, whether the cell selection signal reception quality of the neighboring cell is greater than the second reselection quality threshold, and whether the signal reception strength of the neighboring cell is greater than the signal reception strength of the serving cell.

[0165] In some other examples, when the terminal does not receive the threshServingLowQ broadcast in the system information block, it determines whether to perform cell reselection based on whether the cell selection signal reception strength of the serving cell is less than the serving cell reselection strength threshold, whether the cell selection signal reception strength of the neighboring cell is greater than the second reselection strength threshold, and whether the signal reception quality of the neighboring cell is greater than the second quality threshold.

[0166] In some other examples, when the terminal does not receive the threshServingLowQ broadcast in the system information block, it determines whether to perform cell reselection based on whether the cell selection signal reception strength of the serving cell is less than the serving cell reselection strength threshold, whether the cell selection signal reception strength of the neighboring cell is greater than the second reselection strength threshold, and whether the signal reception quality of the neighboring cell is greater than the signal reception quality of the serving cell.

[0167] The serving cell reselection strength threshold, the second reselection strength threshold, the second reselection quality threshold, the second strength threshold and the second quality threshold may all be parameters related to cell reselection configured by the network.

[0168] In one embodiment, as shown in FIG10 , a flow chart of a cell reselection method according to an exemplary embodiment is shown. The cell reselection method is executed by a terminal in the wireless communication system shown in FIG1 . The method may include:

[0169] S1001: The priority of the neighboring cell is lower than the priority of the serving cell and the terminal receives a cell reselection parameter, and determines whether to perform cell reselection based on the signal reception quality of the neighboring cell and the signal reception quality of the serving cell, and based on at least one of the comparison result of the signal reception strength between the serving cell and the neighboring cell and the signal reception strength of the neighboring cell.

[0170] In some examples, the signal reception strength may be a reference signal reception power; the signal reception quality may be a reference signal reception quality and / or a signal to interference plus noise ratio, etc.

[0171] In some examples, the priority of the neighboring cell is lower than the priority of the serving cell and the terminal receives the serving cell reselection quality threshold (threshServingLowQ). If the terminal has been stationed in the serving cell for more than a preset time, the Squal of the serving cell within the reselection time period TreselectionRAT is less than the serving cell reselection quality threshold, the Squal of the neighboring cell is greater than the second reselection quality threshold, and the signal reception strength of the serving cell is less than the signal reception strength of the neighboring cell, it is determined to perform cell reselection.

[0172] In some examples, the priority of the neighboring cell is lower than the priority of the serving cell and the terminal receives ThreshServingLowQ. If the terminal has been stationed in the serving cell for more than a preset time, the Squal of the serving cell within the reselection time period TreselectionRAT is less than the serving cell reselection quality threshold, the Squal of the neighboring cell is greater than the second reselection quality threshold, and the signal reception strength of the neighboring cell is greater than the second strength threshold, it is determined to perform cell reselection.

[0173] In some examples, when the priority of the neighboring cell is lower than the priority of the serving cell and the terminal receives ThreshServingLowQ, if the terminal has been stationed in the serving cell for more than a preset time, within the reselection time period TreselectionRAT, the Squal of the serving cell is greater than or equal to the serving cell reselection quality threshold, the Squal of the neighboring cell is less than or equal to the second reselection quality threshold, the signal reception strength of the serving cell is less than the signal reception strength of the neighboring cell, and / or the signal reception strength of the neighboring cell is less than or equal to the second strength threshold, it is determined that cell reselection is not performed.

[0174] In one example, the comparison result of the signal reception strength of the serving cell and the neighboring cell may be: a comparison result of the sum of the signal reception strength of the neighboring cell and the signal reception strength offset value corresponding to the neighboring cell and the signal reception strength of the serving cell.

[0175] The signal reception strength offset value corresponding to the neighboring cell is used to indicate the received signal strength offset of the neighboring cell. Increasing the signal reception strength offset value of a cell makes it more likely to become a suitable reselection cell, that is, the difficulty of reselecting to the cell is reduced, and vice versa.

[0176] The signal reception strength bias value may be configured by the terminal or the network device. If the signal reception strength bias value is not configured, the terminal defaults to a signal reception strength bias value of 0.

[0177] In one embodiment, as shown in FIG11 , a flow chart of a cell reselection method according to an exemplary embodiment is shown. The cell reselection method is executed by a terminal in the wireless communication system shown in FIG1 . The method may include:

[0178] S1101: If the priority of the neighboring cell is lower than that of the serving cell and the terminal has not received a cell reselection parameter, determine whether to perform cell reselection based on the signal reception strength of the neighboring cell and the signal reception strength of the serving cell, and based on at least one of a comparison result of the signal reception quality of the serving cell and the neighboring cell and the signal reception quality of the neighboring cell.

[0179] In some examples, the priority of the neighboring cell is lower than the priority of the serving cell and the terminal does not receive ThreshServingLowQ. If the terminal has been stationed in the serving cell for more than a preset time, the Srxlev of the serving cell is less than the serving cell reselection strength threshold within the reselection time period TreselectionRAT, the Srxlev of the neighboring cell is greater than the second reselection strength threshold, and the signal reception quality of the serving cell is less than the signal reception quality of the neighboring cell, it is determined to perform cell reselection.

[0180] In some examples, the priority of the neighboring cell is lower than the priority of the serving cell and the terminal does not receive ThreshServingLowQ. If the terminal has been stationed in the serving cell for more than a preset time, within the reselection time period TreselectionRAT, the Srxlev of the serving cell is less than the serving cell reselection strength threshold, the Srxlev of the neighboring cell is greater than the second reselection strength threshold, and the signal reception quality of the neighboring cell is greater than the second quality threshold, it is determined to perform cell reselection.

[0181] In some examples, when the priority of the neighboring cell is lower than the priority of the serving cell and the terminal does not receive ThreshServingLowQ, if the terminal has been stationed in the serving cell for more than a preset time, within the reselection time period TreselectionRAT, the Srxlev of the serving cell is greater than or equal to the serving cell reselection strength threshold, the Srxlev of the neighboring cell is less than or equal to the second reselection strength threshold, the signal reception quality of the serving cell is less than the signal reception quality of the neighboring cell, and / or the signal reception quality of the neighboring cell is less than or equal to the first strength threshold, it is determined that cell reselection is not performed.

[0182] In one embodiment, the comparison result of the signal reception quality of the serving cell and the neighboring cell is: a comparison result of the sum of the signal reception quality of the neighboring cell and the signal reception quality offset value corresponding to the neighboring cell and the signal reception quality of the serving cell.

[0183] The signal reception quality offset value corresponding to the neighboring cell is used to indicate the received signal quality offset of the neighboring cell. Increasing the signal reception quality offset value of a cell makes it more likely to become a suitable reselection cell, i.e., the difficulty of reselecting to the cell is reduced, and vice versa.

[0184] The signal reception quality bias value may be configured by the terminal or the network device. If the signal reception quality bias value is not configured, the terminal defaults to a signal reception quality bias value of 0.

[0185] In one embodiment, the signal reception strength includes: reference signal received power RSRP;

[0186] The signal reception quality includes: reference signal reception quality RSPQ, and / or signal to interference plus signal to noise ratio SINR.

[0187] In one embodiment, as shown in FIG12 , a flow chart of a cell reselection method according to an exemplary embodiment is shown. The cell reselection method is executed by a network device in the wireless communication system shown in FIG1 . The method may include:

[0188] S1201: Send indication information to the terminal device, wherein the indication information is used to instruct the terminal device to determine whether to perform cell reselection based on the signal reception strength and signal reception quality of the neighboring cell.

[0189] In some examples, the network device may be a base station.

[0190] In some examples, the signal reception strength includes: reference signal received power RSRP; the signal reception quality includes: reference signal received quality RSPQ, and / or signal to interference plus noise ratio SINR.

[0191] Specifically, the network device can send network signaling carrying the indication information to the terminal device, wherein the network signaling includes at least one of the following: downlink control information (Downlink Control Information, DCI), media access control (Media Access Control, MAC) control unit (Control Element, CE), and radio resource control (Radio Resource Control, RRC) signaling.

[0192] In the cell reselection method provided by the embodiment of the present disclosure, indication information is sent to the terminal device through the network device, so that the terminal considers the signal reception strength and signal reception quality of the neighboring cell at the same time when performing cell reselection to determine whether to perform cell reselection. This can balance the network environment and make the terminal more likely to reselect the best cell. This can suppress the situation where poor signal strength or poor signal quality affects the service quality of the terminal, thereby improving the user experience.

[0193] In order to further explain any embodiment of the present disclosure, several specific embodiments are provided below.

[0194] The present disclosure provides a cell reselection method, which is executed by a terminal and combines RSRP and RSRQ / SINR to perform cell reselection. The method may include:

[0195] 1. Same frequency and same priority different frequency reselection

[0196] Cell reselection involves the S criterion and the R criterion.

[0197] The S criterion is: Srxlev > 0 and Squal > 0. Srxlev is the cell selection signal reception strength, and Squal is the cell selection signal reception quality. Cell reselection by a terminal requires that the S criterion be met.

[0198] The R criterion is:

[0199] Rs=Qmeas,s+Qhyst-Qoffsettemp

[0200] Rn=Qmeas,n-Qoffset-Qoffsettemp

[0201] Where Rs is the R value of the serving cell, Rn is the R value of the neighboring cell, Qmeas,s is the RSRP measurement value of the serving cell, Qmeas,n is the RSRP measurement value of the neighboring cell, Qhyst is the cell reselection hysteresis value, Qoffsettemp is the temporary offset value, and Qoffset is the offset value.

[0202] For intra-frequency cells, if Qoffsets,n is configured, Qoffset is Qoffsets,n; if Qoffsets,n is not configured, Qoffset is 0. For inter-frequency cells, if Qoffsets,n is configured, Qoffset is Qoffsets,n + Qoffsetfrequency; otherwise, Qoffset is Qoffsetfrequency.

[0203] A new cell will be selected only when the following conditions are met:

[0204] The new cell meets the cell reselection criteria within TreselectionRAT;

[0205] The UE stays in the current cell for more than 1 second;

[0206] If the rangeToBestCell parameter is not configured, the UE should reselect to the highest ranked cell.

[0207] If the rangeToBestCell parameter is configured, the UE shall select the cell with the highest number of beams above the threshold among the highest rangeToBestCell cells ranked according to the R criterion. If there are multiple such cells (with the same number of beams above the threshold), the UE shall reselect to the highest ranked cell. The threshold is absThreshSS-BlocksConsolidation.

[0208] If the rangeToBestCell parameter is configured but the absThreshSS-BlocksConsolidation parameter is not configured, the UE considers that one beam in each cell of the frequency is above the threshold.

[0209] In combination with the R criterion for reselecting cells (or reselecting by RSRP Rank), this embodiment also takes the RSRQ / SINR of neighboring cells into consideration, thereby ensuring:

[0210] ServingCell_RSRQ / SINR <NeighborCell_RSRQ / SINR+Offset_RSRQ / SINR;

[0211] Or, NeighborCell_RSRQ / SINR>Threshold_RSRQ / SINR;

[0212] Among them, ServingCell_RSRQ / SINR represents the RSRQ / SINR of the serving cell; NeighborCell_RSRQ / SINR represents the RSRQ / SINR of the neighboring cell; Offset_RSRQ / SINR represents the RSRQ / SINR offset value corresponding to the neighboring cell.

[0213] 2. High priority reselection

[0214] If the SIB message contains threshServingLowQ, reselect to a higher-priority inter-frequency or inter-system frequency when the following conditions are met:

[0215] Squal>ThreshX,HighQ;

[0216] Added: ServingCell_RSRP <NeighborCell_RSRP+Offset_RSRP;

[0217] Or NeighborCell_RSRP>Threshold_RSRP;

[0218] durationTreselectionRAT;

[0219] The UE stays in the current cell for more than 1 second.

[0220] Among them, Squal is the signal reception quality of the cell selection, and ThreshX,HighQ is the Squal threshold of the neighboring cell;

[0221] ServingCell_RSRP represents the RSRP of the serving cell; NeighborCell_RSRP represents the RSRP of the neighboring cell; Offset_RSRP represents the RSRP offset value corresponding to the neighboring cell; Threshold_RSRP represents the RSRP threshold.

[0222] If the SIB message does not contain threshServingLowQ, reselect to a higher-priority inter-frequency or inter-system frequency when the following conditions are met:

[0223] Srxlev>ThreshX,HighP;

[0224] Added: ServingCell_RSRQ / SINR <NeighborCell_RSRQ / SINR+Offset_RSRQ / SINR;

[0225] Or NeighborCell_RSRQ / SINR>Threshold_RSRQ / SINR;

[0226] Duration of TreselectionRAT;

[0227] The UE has camped on the current cell for more than 1 second;

[0228] Where Srxlev is the cell selection signal reception strength, and ThreshX,HighP is the high-priority Srxlev threshold of the neighboring cell;

[0229] ServingCell_RSRQ / SINR represents the RSRQ / SINR of the serving cell; NeighborCell_RSRQ / SINR represents the RSRQ / SINR of the neighboring cell; Offset_RSRQ / SINR represents the RSRQ / SINR offset value corresponding to the neighboring cell; Threshold_RSRQ / SINR represents the RSRQ / SINR threshold.

[0230] 3. Low-priority reselection

[0231] If the SIB message contains threshServingLowQ, reselection to a low-priority inter-frequency or inter-system frequency point occurs when the following conditions are met:

[0232] Within the TreselectionRAT time, the serving cell satisfies Squal < ThreshServing,LowQ and the inter-frequency or inter-system cell satisfies Squal > ThreshX,LowQ;

[0233] Addition: ServingCell_RSRP < NeighborCell_RSRP + Offset_RSRP;

[0234] Or NeighborCell_RSRP > Threshold_RSRP;

[0235] The UE has camped on the current cell for more than 1 second.

[0236] Where Squal is the cell selection signal reception quality, ThreshX,LowQ is the low-priority Squal threshold of the neighboring cell; ThreshServing,LowQ is the low-priority Squal threshold of the serving area;

[0237] ServingCell_RSRP represents the RSRP of the serving cell; NeighborCell_RSRP represents the RSRP of the neighboring cell; Offset_RSRP represents the RSRP offset value corresponding to the neighboring cell; Threshold_RSRP represents the RSRP threshold.

[0238] If threshServingLowQ is not included in the SIB message, reselection to a lower-priority inter-frequency or inter-system frequency point occurs when the following conditions are met:

[0239] Within the TreselectionRAT time, the serving cell satisfies Srxlev < ThreshServing,LowP and the inter-frequency or inter-system cell satisfies Srxlev > ThreshX,LowP;

[0240] Add: ServingCell_RSRQ / SINR < NeighborCell_RSRQ / SINR + Offset_RSRQ / SINR;

[0241] Or NeighborCell_RSRQ / SINR > Threshold_RSRQ / SINR;

[0242] The UE has resided in the current cell for more than 1 second.

[0243] Among them, Srxlev is the cell selection signal reception strength, ThreshServing,LowP is the low-priority Srxlev threshold of the serving cell, and ThreshX,HighP is the low-priority Srxlev threshold of the neighboring cell;

[0244] ServingCell_RSRQ / SINR represents the RSRQ / SINR of the serving cell; NeighborCell_RSRQ / SINR represents the RSRQ / SINR of the neighboring cell; Offset_RSRQ / SINR represents the RSRQ / SINR offset value corresponding to the neighboring cell; Threshold_RSRQ / SINR represents the RSRQ / SINR threshold.

[0245] The technical solution provided by the embodiments of the present disclosure enables the UE to select the cell with the best comprehensive ranking of signal strength and signal quality during cell reselection, so that the UE will not be affected by poor signal strength or signal quality during service, thereby improving the user experience.

[0246] The following are the device embodiments of the present disclosure, which can be used to execute the corresponding method embodiments of the present disclosure. For the details not disclosed in the device embodiments of the present disclosure, please refer to the corresponding method embodiments of the present disclosure.

[0247] FIG. 13 is a block diagram of a cell reselection device according to an exemplary embodiment of the present disclosure. The cell reselection device can be applied to a terminal. As shown in FIG. 13, the cell reselection device 100 may include:

[0248] The reselection module 110 is configured to determine whether to perform cell reselection according to the signal reception strength and signal reception quality of the neighboring cell.

[0249] In one embodiment, the reselection module 110 is configured to:

[0250] Whether to perform cell reselection is determined according to a comparison result between the priorities of the serving cell of the terminal and the neighboring cell, and the signal reception strength and signal reception quality of the neighboring cell.

[0251] In one embodiment, the reselection module 110 is configured to:

[0252] The serving cell and the neighboring cell have the same priority, and whether to perform cell reselection is determined based on the signal reception strength of the serving cell and the signal reception strength of the neighboring cell, and based on at least one of a comparison result of the signal reception quality of the serving cell and the neighboring cell and the signal reception quality of the neighboring cell.

[0253] In one embodiment, the reselection module 110 is configured to:

[0254] The priority of the neighboring cell is higher than the priority of the serving cell, and whether to perform cell reselection is determined according to the signal reception strength and signal reception quality of the neighboring cell and whether the terminal receives the cell reselection parameter;

[0255] or,

[0256] The priority of the neighboring cell is higher than the priority of the serving cell. Whether to perform cell reselection is determined based on the signal reception strength and signal reception quality of the serving cell, the signal reception strength and signal reception quality of the neighboring cell, and whether the terminal receives the cell reselection parameter.

[0257] In one embodiment, the reselection module 110 is configured to:

[0258] The priority of the neighboring cell is higher than the priority of the serving cell and the terminal receives the cell reselection parameter, and determines whether to perform cell reselection according to the signal reception quality of the neighboring cell and at least one of a comparison result of the signal reception strength between the serving cell and the neighboring cell and the signal reception strength of the neighboring cell;

[0259] or,

[0260] The priority of the neighboring cell is higher than the priority of the serving cell and the terminal has not received the cell reselection parameter, and determines whether to perform cell reselection according to the signal reception strength of the neighboring cell, and according to at least one of a comparison result of the signal reception quality of the serving cell and the neighboring cell and the signal reception quality of the neighboring cell.

[0261] In one embodiment, the reselection module 110 is configured to:

[0262] The priority of the neighboring cell is lower than the priority of the serving cell. Whether to perform cell reselection is determined based on the signal reception strength and signal reception quality of the neighboring cell, the signal reception strength and signal reception quality of the serving cell, and whether the terminal receives the cell reselection parameter.

[0263] In one embodiment, the reselection module 110 is configured to:

[0264] The priority of the neighboring cell is lower than the priority of the serving cell and the terminal receives the cell reselection parameter, and determines whether to perform cell reselection according to the signal reception quality of the neighboring cell and the signal reception quality of the serving cell, and according to at least one of a comparison result of the signal reception strength between the serving cell and the neighboring cell and the signal reception strength of the neighboring cell;

[0265] or,

[0266] The priority of the neighboring cell is lower than the priority of the serving cell and the terminal has not received the cell reselection parameter, and determines whether to perform cell reselection according to the signal reception strength of the neighboring cell and the signal reception strength of the serving cell, and according to at least one of a comparison result of the signal reception quality of the serving cell and the neighboring cell and the signal reception quality of the neighboring cell.

[0267] In one embodiment, the comparison result of the signal reception quality of the serving cell and the neighboring cell is: a comparison result of the sum of the signal reception quality of the neighboring cell and the signal reception quality offset value corresponding to the neighboring cell and the signal reception quality of the serving cell.

[0268] In one embodiment, the comparison result of the signal reception strength of the serving cell and the neighboring cell is: a comparison result of the sum of the signal reception strength of the neighboring cell and the signal reception strength offset value corresponding to the neighboring cell and the signal reception strength of the serving cell.

[0269] In one embodiment, the signal reception strength includes: reference signal received power RSRP;

[0270] The signal reception quality includes: reference signal reception quality RSPQ, and / or signal to interference plus signal to noise ratio SINR.

[0271] In one embodiment, the apparatus further comprises:

[0272] The receiving module is configured to receive indication information sent by the network device, wherein the indication information is used to instruct the terminal device to determine whether to perform cell reselection based on the signal reception strength and signal reception quality of the neighboring cell.

[0273] FIG14 is a block diagram of a cell reselection device according to an exemplary embodiment of the present disclosure. The cell reselection device can be applied to a terminal. As shown in FIG14 , the cell reselection device 200 may include:

[0274] The sending module 210 is configured to send indication information to the terminal device, wherein the indication information is used to instruct the terminal device to determine whether to perform cell reselection based on the signal reception strength and signal reception quality of the neighboring cell.

[0275] In one embodiment, the signal reception strength includes: reference signal received power RSRP; the signal reception quality includes: reference signal received quality RSPQ, and / or signal to interference plus noise ratio SINR.

[0276] Regarding the apparatus in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0277] An embodiment of the present disclosure provides a communication device, comprising:

[0278] processor;

[0279] a memory for storing instructions executable by the processor;

[0280] The processor is configured to implement the cell reselection method provided by any of the aforementioned technical solutions when running the executable instructions.

[0281] The processor may include various types of storage media, which are non-transitory computer storage media that can continue to store information after the communication device loses power.

[0282] Here, the communication device includes: UE or network equipment.

[0283] The processor may be connected to the memory via a bus or the like, and may be configured to read an executable program stored in the memory, for example, at least one of the cell reselection methods shown in FIG. 2 to FIG. 12 .

[0284] Figure 15 is a block diagram of a UE according to an exemplary embodiment. For example, UE 800 may be a mobile phone, a computer, a digital broadcast user equipment, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0285] 15 , UE 800 may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input / output (I / O) interface 812 , a sensor component 814 , and a communication component 816 .

[0286] The processing component 802 generally controls the overall operation of the UE 800, such as operations associated with display, phone calls, data communications, camera operation, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the above-described method. In addition, the processing component 802 may include one or more modules to facilitate interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

[0287] The memory 804 is configured to store various types of data to support operations on the UE 800. Examples of such data include instructions for any application or method operating on the UE 800, contact data, phone book data, messages, pictures, videos, etc. The memory 804 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0288] The power component 806 provides power to various components of the UE 800. The power component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the UE 800.

[0289] The multimedia component 808 includes a screen that provides an output interface between the UE 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor may not only sense the boundaries of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the UE 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0290] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC) that is configured to receive external audio signals when the UE 800 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, the audio component 810 further includes a speaker for outputting audio signals.

[0291] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as a keyboard, click wheel, buttons, etc. These buttons may include but are not limited to: a home button, volume buttons, a start button, and a lock button.

[0292] The sensor assembly 814 includes one or more sensors for providing various aspects of the status assessment of the UE 800. For example, the sensor assembly 814 can detect the open / closed state of the device 800, the relative positioning of components, such as the display and keypad of the UE 800. The sensor assembly 814 can also detect changes in the position of the UE 800 or a component of the UE 800, the presence or absence of user contact with the UE 800, the orientation or acceleration / deceleration of the UE 800, and changes in the temperature of the UE 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an accelerometer, a gyroscope, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0293] The communication component 816 is configured to facilitate wired or wireless communication between the UE 800 and other devices. The UE 800 can access a wireless network based on a communication standard, such as WiFi, 2G, 3G, 4G or 5G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0294] In an exemplary embodiment, UE800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above methods.

[0295] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, which can be executed by the processor 820 of the UE 800 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0296] As shown in Figure 16, an embodiment of the present disclosure illustrates the structure of a network device. Referring to Figure 16, network device 900 includes a processing component 922, which further includes one or more processors, and memory resources represented by memory 932 for storing instructions executable by processing component 922, such as applications. The applications stored in memory 932 may include one or more modules, each corresponding to a set of instructions. Furthermore, processing component 922 is configured to execute instructions to perform any of the aforementioned methods applied to the network device, such as the cell reselection method shown in Figure 12.

[0297] The network device 900 may also include a power supply component 926 configured to perform power management for the network device 900, a wired or wireless network interface 950 configured to connect the network device 900 to a network, and an input / output (I / O) interface 958. The network device 900 may operate based on an operating system stored in the memory 932, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or the like.

[0298] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 932 including instructions, which can be used by the processing component 922 of the network device 900 to execute any of the methods described above for use in the network device. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, or the like.

[0299] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0300] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A cell reselection method, wherein: Executed by a terminal, the method includes: Determine whether to perform cell reselection based on the signal reception strength and signal reception quality of the neighboring cell.

2. The method according to claim 1, wherein The determining whether to perform cell reselection according to the signal reception strength and signal reception quality of the neighboring cell includes: Whether to perform cell reselection is determined according to a comparison result between the priorities of the serving cell of the terminal and the neighboring cell, and the signal reception strength and signal reception quality of the neighboring cell.

3. The method according to claim 2, wherein: The determining whether to perform cell reselection according to a comparison result of the priorities of the serving cell of the terminal and the neighboring cell, and a signal reception strength and a signal reception quality of the neighboring cell, includes: The serving cell and the neighboring cell have the same priority, and whether to perform cell reselection is determined according to the signal reception strength of the serving cell and the signal reception strength of the neighboring cell, and according to at least one of a comparison result of the signal reception quality of the serving cell and the neighboring cell and the signal reception quality of the neighboring cell.

4. The method according to claim 2, wherein: The determining whether to perform cell reselection according to a comparison result of priorities of the serving cell of the terminal and the neighboring cell, and a signal reception strength and a signal reception quality of the neighboring cell, includes: The priority of the neighboring cell is higher than the priority of the serving cell, and whether to perform cell reselection is determined according to the signal reception strength and signal reception quality of the neighboring cell and whether the terminal receives the cell reselection parameter; or, The priority of the neighboring cell is higher than the priority of the serving cell. Whether to perform cell reselection is determined based on the signal reception strength and signal reception quality of the serving cell, the signal reception strength and signal reception quality of the neighboring cell, and whether the terminal receives the cell reselection parameter.

5. The method according to claim 4, wherein The priority of the neighboring cell is higher than the priority of the serving cell, and determining whether to perform cell reselection according to the signal reception strength and signal reception quality of the neighboring cell and whether the terminal receives a cell reselection parameter includes: The priority of the neighboring cell is higher than the priority of the serving cell and the terminal receives the cell reselection parameter, and determines whether to perform cell reselection according to the signal reception quality of the neighboring cell and at least one of a comparison result of the signal reception strength between the serving cell and the neighboring cell and the signal reception strength of the neighboring cell; or, The priority of the neighboring cell is higher than the priority of the serving cell and the terminal has not received the cell reselection parameter, and determines whether to perform cell reselection according to the signal reception strength of the neighboring cell, and according to at least one of a comparison result of the signal reception quality of the serving cell and the neighboring cell and the signal reception quality of the neighboring cell.

6. The method according to claim 2, wherein: The determining whether to perform cell reselection according to a comparison result of priorities of the serving cell of the terminal and the neighboring cell, and a signal reception strength and a signal reception quality of the neighboring cell, includes: The priority of the neighboring cell is lower than the priority of the serving cell. Whether to perform cell reselection is determined based on the signal reception strength and signal reception quality of the neighboring cell, the signal reception strength and signal reception quality of the serving cell, and whether the terminal receives the cell reselection parameter.

7. The method according to claim 6, wherein: The priority of the neighboring cell is lower than the priority of the serving cell, and determining whether to perform cell reselection according to the signal reception strength and signal reception quality of the neighboring cell, the signal reception strength and signal reception quality of the serving cell, and whether the terminal receives a cell reselection parameter, including: The priority of the neighboring cell is lower than the priority of the serving cell and the terminal receives the cell reselection parameter, and determines whether to perform cell reselection according to the signal reception quality of the neighboring cell and the signal reception quality of the serving cell, and according to at least one of a comparison result of the signal reception strength between the serving cell and the neighboring cell and the signal reception strength of the neighboring cell; or, The priority of the neighboring cell is lower than the priority of the serving cell and the terminal has not received the cell reselection parameter, and determines whether to perform cell reselection according to the signal reception strength of the neighboring cell and the signal reception strength of the serving cell, and according to at least one of a comparison result of the signal reception quality of the serving cell and the neighboring cell and the signal reception quality of the neighboring cell.

8. The method according to claim 3, 5 or 7, wherein: The comparison result of the signal reception quality of the serving cell and the neighboring cell is: a comparison result of the sum of the signal reception quality of the neighboring cell and the signal reception quality offset value corresponding to the neighboring cell and the signal reception quality of the serving cell.

9. The method according to claim 5 or 7, wherein: The comparison result of the signal reception strength of the serving cell and the neighboring cell is: a comparison result of the sum of the signal reception strength of the neighboring cell and the signal reception strength offset value corresponding to the neighboring cell and the signal reception strength of the serving cell.

10. The method according to any one of claims 1 to 9, wherein: The signal reception strength includes: reference signal received power RSRP; The signal reception quality includes: reference signal reception quality RSPQ, and / or signal to interference plus signal to noise ratio SINR.

11. A cell reselection method, wherein: Executed by a network device, the method includes: Send indication information to the terminal device, wherein the indication information is used to instruct the terminal device to determine whether to reselect a cell based on the signal reception strength and signal reception quality of the neighboring cell.

12. The method according to claim 11, wherein The signal reception strength includes: reference signal received power RSRP; The signal reception quality includes: reference signal reception quality RSPQ, and / or signal to interference plus signal to noise ratio SINR.

13. A cell reselection device, wherein: Applied to a terminal, the device includes: The reselection module is configured to determine whether to perform cell reselection based on the signal reception strength and signal reception quality of the neighboring cell.

14. The device according to claim 13, wherein The reselection module is configured to: Whether to perform cell reselection is determined according to a comparison result between the priorities of the serving cell of the terminal and the neighboring cell, and the signal reception strength and signal reception quality of the neighboring cell.

15. The device according to claim 14, wherein The reselection module is configured to: The serving cell and the neighboring cell have the same priority, and whether to perform cell reselection is determined according to the signal reception strength of the serving cell and the signal reception strength of the neighboring cell, and according to at least one of a comparison result of the signal reception quality of the serving cell and the neighboring cell and the signal reception quality of the neighboring cell.

16. The device according to claim 14, wherein The reselection module is configured to: The priority of the neighboring cell is higher than the priority of the serving cell, and whether to perform cell reselection is determined according to the signal reception strength and signal reception quality of the neighboring cell and whether the terminal receives the cell reselection parameter; or, The priority of the neighboring cell is higher than the priority of the serving cell. Whether to perform cell reselection is determined based on the signal reception strength and signal reception quality of the serving cell, the signal reception strength and signal reception quality of the neighboring cell, and whether the terminal receives the cell reselection parameter.

17. The device according to claim 16, wherein The reselection module is configured to: The priority of the neighboring cell is higher than the priority of the serving cell and the terminal receives the cell reselection parameter, and determines whether to perform cell reselection according to the signal reception quality of the neighboring cell and at least one of a comparison result of the signal reception strength between the serving cell and the neighboring cell and the signal reception strength of the neighboring cell; or, The priority of the neighboring cell is higher than the priority of the serving cell and the terminal has not received the cell reselection parameter, and determines whether to perform cell reselection according to the signal reception strength of the neighboring cell, and according to at least one of a comparison result of the signal reception quality of the serving cell and the neighboring cell and the signal reception quality of the neighboring cell.

18. The device according to claim 14, wherein The reselection module is configured to: The priority of the neighboring cell is lower than the priority of the serving cell. Whether to perform cell reselection is determined based on the signal reception strength and signal reception quality of the neighboring cell, the signal reception strength and signal reception quality of the serving cell, and whether the terminal receives the cell reselection parameter.

19. The device according to claim 18, wherein The reselection module is configured to: The priority of the neighboring cell is lower than the priority of the serving cell and the terminal receives the cell reselection parameter, and determines whether to perform cell reselection according to the signal reception quality of the neighboring cell and the signal reception quality of the serving cell, and according to at least one of a comparison result of the signal reception strength between the serving cell and the neighboring cell and the signal reception strength of the neighboring cell; or, The priority of the neighboring cell is lower than the priority of the serving cell and the terminal has not received the cell reselection parameter, and determines whether to perform cell reselection according to the signal reception strength of the neighboring cell and the signal reception strength of the serving cell, and according to at least one of a comparison result of the signal reception quality of the serving cell and the neighboring cell and the signal reception quality of the neighboring cell.

20. The device according to claim 15, 17 or 19, wherein The comparison result of the signal reception quality of the serving cell and the neighboring cell is: a comparison result of the sum of the signal reception quality of the neighboring cell and the signal reception quality offset value corresponding to the neighboring cell and the signal reception quality of the serving cell.

21. The device according to claim 17 or 19, wherein The comparison result of the signal reception strength of the serving cell and the neighboring cell is: a comparison result of the sum of the signal reception strength of the neighboring cell and the signal reception strength offset value corresponding to the neighboring cell and the signal reception strength of the serving cell.

22. The device according to any one of claims 13 to 21, wherein The signal reception strength includes: reference signal received power RSRP; The signal reception quality includes: reference signal reception quality RSPQ, and / or signal to interference plus signal to noise ratio SINR.

23. A cell reselection device, wherein: Applied to network equipment, the device includes: The sending module is configured to send indication information to the terminal device, wherein the indication information is used to instruct the terminal device to determine whether to perform cell reselection based on the signal reception strength and signal reception quality of the neighboring cell.

24. The device according to claim 23, wherein The signal reception strength includes: reference signal received power RSRP; The signal reception quality includes: reference signal reception quality RSPQ, and / or signal to interference plus signal to noise ratio SINR.

25. A communication device, wherein: The communication device comprises: processor; a memory for storing instructions executable by the processor; The processor is configured to implement the cell reselection method according to any one of claims 1 to 12 when running the executable instructions.

26. A computer storage medium, wherein: The computer storage medium stores a computer executable program, and when the executable program is executed by a processor, the cell reselection method according to any one of claims 1 to 12 is implemented.

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