Unlicensed frequency band cell switching method, terminal and network side equipment

Abstract

The present invention provides a method for handover of an unlicensed frequency band cell, a terminal, and network-side equipment, belonging to the field of wireless communication technology. The method comprises: obtaining unlicensed frequency band channel information measured by the terminal itself and / or by network-side equipment of adjacent cells; generating handover decision information based on the unlicensed frequency band channel information; and transmitting the handover decision information to the terminal. The present invention not only reduces terminal power consumption but also ensures service performance after the terminal enters the target cell.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technology, and in particular to an unlicensed frequency band cell switching method, a terminal, and a network-side device. Background Art

[0002] The Third Generation Partnership Projects (3GPP) have initiated research on 5G New Radio (NR) in Unlicensed Spectrum (NR-U), as an extension and complement to 5G NR. NR-U was initially developed to address the limited availability of licensed spectrum. To meet the needs of seamless coverage and high data rates (large bandwidth), NR-U uses the NR protocol to provide access services in unlicensed bands (including 2.4 GHz, 3.5 GHz, and 5 GHz). For example, when a terminal has high-volume, non-real-time services, these services can be carried by cells in the unlicensed bands, alleviating pressure on cells in the licensed bands. Due to the unlicensed nature of unlicensed spectrum, some countries and regions (such as the EU and Japan) require channel occupancy monitoring (LBT) before any communication can proceed. Therefore, LBT failures can impact all air interface interactions (including the control and user planes) within the cellular network protocol. For example, when LBT fails on a certain time-frequency resource, system messages, access requests, radio resource control (RRC) signaling, and user data cannot be sent on this time-frequency resource, resulting in reception delay or failure on the network or terminal side.

[0003] When a terminal is far away from the serving cell or close to a better neighboring cell, a handover is required to ensure service performance. Therefore, the terminal needs to measure the serving cell and / or neighboring cells and report measurement reports to the serving cell when certain conditions are met. The serving cell then makes handover decisions based on the measurement report results.

[0004] It can be seen that the existing trigger conditions for reporting measurement reports are all based on the results measured by the terminal side receiver. Due to the exclusivity of the authorized frequency band and the resource scheduling mechanism of the cellular network, making a switching decision based on the result can effectively guarantee the service performance of the terminal after entering the target cell. However, for unlicensed frequency bands, due to their unlicensed sharing characteristics and LBT mechanism, reporting measurement reports based entirely on the results measured by the terminal side receiver will lead to unnecessary reporting and corresponding power consumption, and the switching decision based entirely on the results measured by the terminal side receiver is difficult to guarantee the service performance of the terminal after entering the target cell. Figure 1As shown, a typical scenario is when there are access points deployed by other operators or private individuals operating in the unlicensed frequency band near the serving cell or adjacent cell in the unlicensed frequency band (commonly known as the hidden node problem). The measurement quantity measured by the terminal cannot reflect the actual network performance of the cell. For example, the terminal may measure a strong reference signal received power (RSRP) or a low channel busy rate, but the channel of the transmitting end of the serving cell or adjacent cell is busy due to the presence of other access points, resulting in a low LBT success rate and an inability to provide services to newly connected terminals. Summary of the Invention

[0005] In view of this, the present invention provides a method for switching cells in an unlicensed frequency band, a terminal and a network-side device, which are used to solve the current problem that for unlicensed frequency bands, if the measurement report is triggered based entirely on the results measured by the terminal-side receiving end, unnecessary reporting may result, and / or if the switching decision is made based entirely on the results measured by the terminal-side receiving end, it is difficult to ensure the service performance of the terminal after entering the target cell.

[0006] To solve the above technical problems, in a first aspect, the present invention provides a method for handover of an unlicensed frequency band cell, which is applied to a network-side device, comprising:

[0007] Obtain unlicensed frequency band channel information measured by the network side equipment of the own cell and / or the adjacent cell;

[0008] Generate switching decision information based on the unlicensed frequency band channel information and send the switching decision information to the terminal; or send the unlicensed frequency band channel information to the terminal so that the terminal determines whether to send a measurement report based on the unlicensed frequency band channel information; or send first indication information for reporting a measurement report or second indication information for not reporting a measurement report to the terminal based on the unlicensed frequency band channel information.

[0009] Optionally, the unlicensed frequency band channel information is obtained through layer 2 measurement.

[0010] Optionally, the unlicensed frequency band channel information includes at least one of the following parameters:

[0011] Listen first and then talk about the LBT success rate;

[0012] LBT failure rate;

[0013] The number of successful LBTs per unit time;

[0014] The number of LBT failures per unit time;

[0015] The average length of time it takes for LBT to succeed;

[0016] Load level;

[0017] The ratio of the channel idle time to the total measurement time;

[0018] The ratio of the channel occupation time to the total measurement time.

[0019] Optionally, the network side device obtains the unlicensed frequency band channel information measured by the network side device of the adjacent cell through an inter-base station interface.

[0020] Optionally, the step of generating switching decision information according to the unlicensed frequency band channel information includes:

[0021] If the parameter value in the unlicensed frequency band channel information meets the switching condition, switching decision information including a switching instruction is generated.

[0022] Optionally, the step of generating switching decision information according to the unlicensed frequency band channel information includes:

[0023] If the parameter value in the unlicensed frequency band channel information does not meet the switching condition, the neighboring cell corresponding to the unlicensed frequency band channel information is listed as a prohibited access cell, and switching decision information including the prohibited access cell is generated.

[0024] Optionally, the handover decision information further includes a prohibition validity period for the access-prohibited cell.

[0025] Optionally, the switching condition includes at least one of the following:

[0026] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the first preset condition;

[0027] The parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the second preset condition;

[0028] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the third preset condition, and the parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the fourth preset condition;

[0029] A parameter value in the unlicensed frequency band channel information measured by the network-side device and a parameter value in the unlicensed frequency band channel information measured by the network-side device of the neighboring cell meet a fifth preset condition.

[0030] Optionally, the unlicensed frequency band channel information is sent to the terminal via at least one of RRC signaling and a reference signal.

[0031] In a second aspect, the present invention further provides an unlicensed frequency band cell handover method, applied to a terminal, comprising:

[0032] receiving handover decision information sent by a network-side device, where the handover decision information is generated by the network-side device according to unlicensed frequency band channel information; or

[0033] receiving unlicensed frequency band channel information sent by a network-side device, and determining whether to send a measurement report based on the unlicensed frequency band channel information; or,

[0034] receiving first indication information or second indication information sent by a network side device, where the first indication information or the second indication information is generated according to unlicensed frequency band channel information, the first indication information is used to instruct the terminal to report a measurement report, and the second indication information is used to instruct the terminal not to report a measurement report;

[0035] The unlicensed frequency band channel information is obtained by measuring the network side device itself and / or by measuring the network side device of an adjacent cell.

[0036] Optionally, the unlicensed frequency band channel information includes at least one of the following parameters:

[0037] LBT success rate;

[0038] LBT failure rate;

[0039] The number of successful LBTs per unit time;

[0040] The number of LBT failures per unit time;

[0041] The average length of time it takes for LBT to succeed;

[0042] Load level;

[0043] The ratio of the channel idle time to the total measurement time;

[0044] The ratio of the channel occupation time to the total measurement time.

[0045] Optionally, the step of determining whether to send a measurement report according to the unlicensed frequency band channel information includes:

[0046] Determining whether a parameter value in the unlicensed frequency band channel information meets a first measurement report triggering condition;

[0047] If the first measurement report reporting triggering condition is met, it is determined to send the measurement report.

[0048] Optionally, the first measurement report reporting triggering condition includes at least one of the following:

[0049] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the sixth preset condition;

[0050] The parameter value in the unlicensed frequency band channel information measured by the network-side device of the neighboring cell meets the seventh preset condition;

[0051] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the eighth preset condition, and the parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the ninth preset condition;

[0052] A parameter value in the unlicensed frequency band channel information measured by the network side device and a parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meet a tenth preset condition.

[0053] Optionally, the step of determining whether to send a measurement report according to the unlicensed frequency band channel information includes:

[0054] Determining whether a parameter value in the unlicensed frequency band channel information meets a first measurement report reporting trigger condition, and determining whether the parameter value measured by the terminal meets a second measurement report reporting trigger condition;

[0055] If the parameter value in the unlicensed frequency band channel information meets the first measurement report reporting triggering condition, and the parameter value measured by the terminal meets the second measurement report reporting triggering condition, it is determined to send the measurement report.

[0056] In a third aspect, the present invention further provides a network-side device, including:

[0057] An acquisition module, configured to acquire unlicensed frequency band channel information measured by the network side device of the cell itself and / or the cell adjacent to the cell;

[0058] A decision module is used to generate switching decision information based on the unlicensed frequency band channel information and send the switching decision information to the terminal; or, a first sending module is used to send the unlicensed frequency band channel information to the terminal, so that the terminal determines whether to send a measurement report based on the unlicensed frequency band channel information; or, a second sending module is used to send a first indication information for reporting a measurement report or a second indication information for not reporting a measurement report to the terminal based on the unlicensed frequency band channel information.

[0059] Optionally, the unlicensed frequency band channel information is obtained through layer 2 measurement.

[0060] Optionally, the unlicensed frequency band channel information includes at least one of the following parameters:

[0061] Listen first and then talk about the LBT success rate;

[0062] LBT failure rate;

[0063] The number of successful LBTs per unit time;

[0064] The number of LBT failures per unit time;

[0065] The average length of time it takes for LBT to succeed;

[0066] Load level;

[0067] The ratio of the channel idle time to the total measurement time;

[0068] The ratio of the channel occupation time to the total measurement time.

[0069] Optionally, the network side device obtains the unlicensed frequency band channel information measured by the network side device of the adjacent cell through an inter-base station interface.

[0070] Optionally, the decision module includes:

[0071] The first generating unit is configured to generate switching decision information including a switching instruction if the parameter value in the unlicensed frequency band channel information meets a switching condition.

[0072] Optionally, the decision module includes:

[0073] The second generating unit is configured to list the adjacent cell corresponding to the unlicensed frequency band channel information as a prohibited access cell if the parameter value in the unlicensed frequency band channel information does not meet the switching condition, and generate switching decision information including the prohibited access cell.

[0074] Optionally, the handover decision information further includes a prohibition validity period for the access-prohibited cell.

[0075] Optionally, the switching condition includes at least one of the following:

[0076] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the first preset condition;

[0077] The parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the second preset condition;

[0078] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the third preset condition, and the parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the fourth preset condition;

[0079] A parameter value in the unlicensed frequency band channel information measured by the network-side device and a parameter value in the unlicensed frequency band channel information measured by the network-side device of the neighboring cell meet a fifth preset condition.

[0080] Optionally, the unlicensed frequency band channel information is sent to the terminal via at least one of RRC signaling and a reference signal.

[0081] In a fourth aspect, the present invention further provides a terminal, comprising:

[0082] a first receiving module, configured to receive switching decision information sent by a network-side device, where the switching decision information is generated by the network-side device according to unlicensed frequency band channel information; or

[0083] a receiving and judging module, configured to receive unlicensed frequency band channel information sent by a network-side device, and determine whether to send a measurement report based on the unlicensed frequency band channel information; or

[0084] a second receiving module, configured to receive first indication information or second indication information sent by a network-side device, where the first indication information or the second indication information is generated based on the unlicensed frequency band channel information, the first indication information is used to instruct the terminal to report a measurement report, and the second indication information is used to instruct the terminal not to report a measurement report;

[0085] The unlicensed frequency band channel information is obtained by measuring the network side device itself and / or by measuring the network side device of an adjacent cell.

[0086] Optionally, the unlicensed frequency band channel information includes at least one of the following parameters:

[0087] LBT success rate;

[0088] LBT failure rate;

[0089] The number of successful LBTs per unit time;

[0090] The number of LBT failures per unit time;

[0091] The average length of time it takes for LBT to succeed;

[0092] Load level;

[0093] The ratio of the channel idle time to the total measurement time;

[0094] The ratio of the channel occupation time to the total measurement time.

[0095] Optionally, the receiving and judging module includes:

[0096] A first judging unit, configured to judge whether a parameter value in the unlicensed frequency band channel information meets a first measurement report triggering condition;

[0097] The first determining unit is configured to determine whether to send a measurement report if the first measurement report reporting triggering condition is met.

[0098] Optionally, the first measurement report reporting triggering condition includes at least one of the following:

[0099] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the sixth preset condition;

[0100] The parameter value in the unlicensed frequency band channel information measured by the network-side device of the neighboring cell meets the seventh preset condition;

[0101] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the eighth preset condition, and the parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the ninth preset condition;

[0102] A parameter value in the unlicensed frequency band channel information measured by the network side device and a parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meet a tenth preset condition.

[0103] Optionally, the receiving and judging module includes:

[0104] a second determining unit, configured to determine whether a parameter value in the unlicensed frequency band channel information satisfies a first measurement report reporting trigger condition, and determine whether the parameter value measured by the terminal satisfies a second measurement report reporting trigger condition;

[0105] The second determining unit is configured to determine to send a measurement report if the parameter value in the unlicensed frequency band channel information meets the first measurement report reporting trigger condition and the parameter value measured by the terminal meets the second measurement report reporting trigger condition.

[0106] In a fifth aspect, the present invention further provides a network side device, comprising: a transceiver and a processor;

[0107] The processor is configured to obtain unlicensed frequency band channel information measured by the processor itself and / or by a network-side device of an adjacent cell;

[0108] The processor is further used to generate switching decision information based on the unlicensed frequency band channel information, and the transceiver is used to send the switching decision information to the terminal; or, the transceiver is used to send the unlicensed frequency band channel information to the terminal so that the terminal determines whether to send a measurement report based on the unlicensed frequency band channel information; or, the transceiver is used to send first indication information for reporting a measurement report or second indication information for not reporting a measurement report to the terminal based on the unlicensed frequency band channel information.

[0109] Optionally, the unlicensed frequency band channel information is obtained through layer 2 measurement.

[0110] Optionally, the unlicensed frequency band channel information includes at least one of the following parameters:

[0111] Listen first and then talk about the LBT success rate;

[0112] LBT failure rate;

[0113] The number of successful LBTs per unit time;

[0114] The number of LBT failures per unit time;

[0115] The average length of time it takes for LBT to succeed;

[0116] Load level;

[0117] The ratio of the channel idle time to the total measurement time;

[0118] The ratio of the channel occupation time to the total measurement time.

[0119] Optionally, the network side device obtains the unlicensed frequency band channel information measured by the network side device of the adjacent cell through an inter-base station interface.

[0120] Optionally, the processor is configured to generate switching decision information including a switching instruction if a parameter value in the unlicensed frequency band channel information satisfies a switching condition.

[0121] Optionally, the processor is used to list the adjacent cell corresponding to the unlicensed frequency band channel information as a prohibited access cell if the parameter value in the unlicensed frequency band channel information does not meet the switching condition, and generate switching decision information including the prohibited access cell.

[0122] Optionally, the handover decision information further includes a prohibition validity period for the access-prohibited cell.

[0123] Optionally, the switching condition includes at least one of the following:

[0124] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the first preset condition;

[0125] The parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the second preset condition;

[0126] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the third preset condition, and the parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the fourth preset condition;

[0127] A parameter value in the unlicensed frequency band channel information measured by the network-side device and a parameter value in the unlicensed frequency band channel information measured by the network-side device of the neighboring cell meet a fifth preset condition.

[0128] Optionally, the unlicensed frequency band channel information is sent to the terminal via at least one of RRC signaling and a reference signal.

[0129] In a sixth aspect, the present invention further provides a terminal, comprising: a transceiver and a processor;

[0130] The transceiver is used to receive switching decision information sent by a network side device, where the switching decision information is generated by the network side device according to unlicensed frequency band channel information; or,

[0131] The transceiver is configured to receive unlicensed frequency band channel information sent by a network side device; the processor is configured to determine whether to send a measurement report based on the unlicensed frequency band channel information; or

[0132] The transceiver is configured to receive first indication information or second indication information sent by a network-side device, where the first indication information or the second indication information is generated based on unlicensed frequency band channel information, the first indication information is used to instruct the terminal to report a measurement report, and the second indication information is used to instruct the terminal not to report a measurement report;

[0133] The unlicensed frequency band channel information is obtained by measuring the network side device itself and / or by measuring the network side device of an adjacent cell.

[0134] Optionally, the unlicensed frequency band channel information includes at least one of the following parameters:

[0135] LBT success rate;

[0136] LBT failure rate;

[0137] The number of successful LBTs per unit time;

[0138] The number of LBT failures per unit time;

[0139] The average length of time it takes for LBT to succeed;

[0140] Load level;

[0141] The ratio of the channel idle time to the total measurement time;

[0142] The ratio of the channel occupation time to the total measurement time.

[0143] Optionally, the processor is configured to determine whether a parameter value in the unlicensed frequency band channel information satisfies a first measurement report reporting trigger condition; if the first measurement report reporting trigger condition is met, determine to send a measurement report.

[0144] Optionally, the first measurement report reporting triggering condition includes at least one of the following:

[0145] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the sixth preset condition;

[0146] The parameter value in the unlicensed frequency band channel information measured by the network-side device of the neighboring cell meets the seventh preset condition;

[0147] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the eighth preset condition, and the parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the ninth preset condition;

[0148] A parameter value in the unlicensed frequency band channel information measured by the network side device and a parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meet a tenth preset condition.

[0149] Optionally, the processor is used to determine whether the parameter value in the unlicensed frequency band channel information meets the first measurement report reporting trigger condition, and determine whether the parameter value measured by the terminal meets the second measurement report reporting trigger condition; if the parameter value in the unlicensed frequency band channel information meets the first measurement report reporting trigger condition, and the parameter value measured by the terminal meets the second measurement report reporting trigger condition, it is determined to send a measurement report.

[0150] In the seventh aspect, the present invention also provides a network side device, including a memory, a processor, and a computer program stored on the memory and runnable on the processor; when the processor executes the computer program, it implements any one of the above-mentioned unlicensed frequency band cell switching methods applied to the network side device.

[0151] In an eighth aspect, the present invention also provides a terminal comprising a memory, a processor, and a computer program stored on the memory and executable on the processor; when the processor executes the computer program, any one of the above-mentioned unlicensed frequency band cell switching methods applied to the terminal is implemented.

[0152] In a ninth aspect, the present invention further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps in any of the above-mentioned unlicensed frequency band cell switching methods.

[0153] The beneficial effects of the above technical solution of the present invention are as follows:

[0154] 1. In an embodiment of the present invention, a network-side device makes a handover decision based on unlicensed frequency band channel information measured by itself and / or by network-side devices of adjacent cells. The terminal does not need to perform measurements or submit measurement reports. This not only reduces terminal power consumption but also ensures service performance after the terminal enters the target cell.

[0155] 2. In this embodiment of the present invention, a network device transmits unlicensed frequency band channel information measured by itself and / or by network devices in neighboring cells to a terminal, enabling the terminal to determine whether to send a measurement report based on this unlicensed frequency band channel information. This avoids unnecessary reporting, which would otherwise occur if the terminal were to trigger measurement reports based solely on its own measurement results, thereby reducing terminal power consumption. Furthermore, if the network device, upon receiving the measurement report reported by the terminal, combines this unlicensed frequency band channel information with handover decisions, it can ensure service performance after the terminal enters the target cell.

[0156] 3. In this embodiment of the present invention, a network device sends a first indication to the terminal to report a measurement report or a second indication not to report a measurement report based on unlicensed frequency band channel information measured by the network device itself and / or by network devices in neighboring cells. This avoids unnecessary measurement report reporting caused by the terminal triggering the reporting of measurement reports based solely on its own measurement results, thereby reducing terminal power consumption. Furthermore, if the network device, upon receiving the measurement report reported by the terminal, combines the unlicensed frequency band channel information to make a handover decision, service performance can be guaranteed after the terminal enters the target cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0157] Figure 1 This is a schematic diagram of an unlicensed frequency band communication scenario;

[0158] Figure 2 Schematic diagram of a flow chart of a method for handover of an unlicensed frequency band cell in the first embodiment of the present invention;

[0159] Figure 3This is a flowchart of a method for handover of an unlicensed frequency band cell in the second embodiment of the present invention;

[0160] Figure 4 Schematic diagram of a flow chart of a method for handover of an unlicensed frequency band cell in Embodiment 3 of the present invention;

[0161] Figure 5 Schematic diagram of a flow chart of a method for handover of an unlicensed frequency band cell in a fourth embodiment of the present invention;

[0162] Figure 6 1 is a flow chart of a method for handover of an unlicensed frequency band cell in a fifth embodiment of the present invention;

[0163] Figure 7 Schematic diagram of a flow chart of a method for handover of an unlicensed frequency band cell in a sixth embodiment of the present invention;

[0164] Figure 8 This is a schematic structural diagram of a network-side device in Embodiment 10 of the present invention;

[0165] Figure 9 This is a schematic structural diagram of a terminal in the eleventh embodiment of the present invention;

[0166] Figure 10 This is a schematic structural diagram of a network-side device in Embodiment 12 of the present invention;

[0167] Figure 11 This is a schematic structural diagram of a terminal in Embodiment 13 of the present invention;

[0168] Figure 12 This is a schematic structural diagram of a network-side device in Embodiment 14 of the present invention;

[0169] Figure 13 This is a schematic diagram of the structure of a terminal in the fifteenth embodiment of the present invention. DETAILED DESCRIPTION

[0170] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0171] See also Figure 2 , Figure 2 A flowchart of a method for handover of a cell in an unlicensed frequency band provided in Embodiment 1 of the present invention is provided. The method is applied to a network-side device and includes the following steps:

[0172] Step 21: The network-side device obtains unlicensed frequency band channel information measured by itself and / or by network-side devices of neighboring cells;

[0173] Step 22: The network-side device generates switching decision information according to the unlicensed frequency band channel information, and sends the switching decision information to the terminal.

[0174] The above-mentioned network side device may be a network side device of a serving cell, specifically a serving cell base station.

[0175] In an embodiment of the present invention, the network-side device makes a switching decision based on the unlicensed frequency band channel information measured by itself and / or the network-side device of the adjacent cell. The terminal does not need to perform measurements and report measurement reports. This not only reduces the power consumption of the terminal, but also ensures the service performance of the terminal after entering the target cell.

[0176] The following example illustrates the above-mentioned unlicensed frequency band cell switching method.

[0177] Optionally, the unlicensed frequency band channel information is obtained through layer 2 measurement.

[0178] That is, the network side device (of the serving cell) can obtain the unlicensed frequency band channel information through layer 2 measurement, and the network side device of the adjacent cell can also obtain the unlicensed frequency band channel information through layer 2 measurement.

[0179] Optionally, the unlicensed frequency band channel information includes at least one of the following parameters:

[0180] LBT success rate;

[0181] LBT failure rate;

[0182] The number of successful LBTs per unit time;

[0183] The number of LBT failures per unit time;

[0184] The average length of time it takes for LBT to succeed;

[0185] Load level;

[0186] The ratio of the channel idle time to the total measurement time;

[0187] The ratio of the channel occupation time to the total measurement time.

[0188] The total measurement duration may be equal to the sum of the channel idle duration and the channel occupied duration.

[0189] In an embodiment of the present invention, the unlicensed frequency band channel information measured by the network side device (of the serving cell) includes at least one of the above parameters; the unlicensed frequency band channel information measured by the network side device of the adjacent cell also includes at least one of the above parameters.

[0190] Optionally, the network side device obtains the unlicensed frequency band channel information measured by the network side device of the adjacent cell through an inter-base station interface.

[0191] That is, the network-side devices can exchange the unlicensed frequency band channel information via an inter-base station interface. Specifically, the inter-base station interface can be an Xn interface or an X2 interface.

[0192] Optionally, the step of generating switching decision information according to the unlicensed frequency band channel information includes:

[0193] If the parameter value in the unlicensed frequency band channel information meets the switching condition, switching decision information including a switching instruction is generated.

[0194] Optionally, the step of generating switching decision information according to the unlicensed frequency band channel information includes:

[0195] If the parameter value in the unlicensed frequency band channel information does not meet the switching condition, the neighboring cell corresponding to the unlicensed frequency band channel information is listed as a prohibited access cell, and switching decision information including the prohibited access cell is generated.

[0196] That is, if the parameter values ​​in the unlicensed frequency band channel information measured by the network side device and / or the unlicensed frequency band channel information measured by the network side device of the adjacent cell meet the switching conditions, the network side device (of the service cell) determines to switch, otherwise the adjacent cell can be listed as a cell prohibited from access.

[0197] In addition, if the network side device (of the service cell) collects the unlicensed frequency band channel information measured by the network side devices of multiple adjacent cells, and lists multiple adjacent cells as prohibited access cells according to the switching conditions, then the switching decision information includes a list of prohibited access cells.

[0198] Further optionally, the handover decision information also includes a prohibition validity duration for the prohibited cell. That is, if the network-side device (of the serving cell) lists the neighboring cell as a prohibited cell based on the parameter value in the unlicensed frequency band channel information not meeting the handover conditions, a prohibition validity duration for the neighboring cell may also be proposed. During this prohibition validity duration, the neighboring cell will not be used as a target cell for handover.

[0199] Optionally, the switching condition includes at least one of the following:

[0200] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the first preset condition;

[0201] For example, the LBT success rate in the unlicensed frequency band channel information measured by the network-side device is greater than or less than the first threshold value. The LBT success rate here is only an example. The parameters in the unlicensed frequency band channel information may also include the LBT failure rate, the number of LBT successes per unit time, the number of LBT failures per unit time, the average time taken for LBT success, the load level, the ratio of the channel idle time to the total measurement time, the ratio of the channel occupied time to the total measurement time, etc., the same below.

[0202] The parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the second preset condition;

[0203] For example, the LBT success rate in the unlicensed frequency band channel information measured by the network-side device of the neighboring cell is greater than or less than the second threshold.

[0204] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the third preset condition, and the parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the fourth preset condition;

[0205] For example, the LBT success rate in the unlicensed frequency band channel information measured by the network side device is less than or greater than the third threshold value, and the LBT success rate in the unlicensed frequency band channel information measured by the network side device of the adjacent cell is greater than or less than the fourth threshold value.

[0206] The parameter value in the unlicensed frequency band channel information measured by the network side device and the parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meet a fifth preset condition;

[0207] For example, the LBT success rate in the unlicensed frequency band channel information measured by the network-side device is less than or greater than the LBT success rate in the unlicensed frequency band channel information measured by the network-side device of the neighboring cell. For another example, the LBT success rate in the unlicensed frequency band channel information measured by the network-side device is less than or greater than the LBT success rate in the unlicensed frequency band channel information measured by the network-side device of the neighboring cell, and the difference is greater than the fifth threshold value.

[0208] See also Figure 3 , Figure 3 A flowchart of a method for handover of a cell in an unlicensed frequency band provided in Embodiment 2 of the present invention is provided. The method is applied to a network-side device and includes the following steps:

[0209] Step 31: The network-side device obtains unlicensed frequency band channel information measured by itself and / or by network-side devices of neighboring cells;

[0210] Step 32: The network-side device sends the unlicensed frequency band channel information to the terminal, so that the terminal determines whether to send a measurement report according to the unlicensed frequency band channel information.

[0211] It should be noted that, after receiving the measurement report sent by the terminal, the network side device may make a switching decision based on the measurement report, or make a switching decision based on the measurement report combined with the unlicensed frequency band channel information.

[0212] In addition, the above-mentioned network side device may be a network side device of a serving cell, specifically a serving cell base station.

[0213] This embodiment of the present invention differs primarily from the first embodiment described above in that the network device does not make a handover decision directly based on unlicensed frequency band channel information measured by itself and / or by network devices in neighboring cells. Instead, the network device sends the unlicensed frequency band channel information to the terminal, enabling the terminal to determine whether to send a measurement report based on the unlicensed frequency band channel information. The network device then makes a handover decision based on the measurement report sent by the terminal, or based on the measurement report combined with the unlicensed frequency band channel information.

[0214] In this embodiment of the present invention, a network device transmits unlicensed frequency band channel information measured by itself and / or by network devices in neighboring cells to a terminal, enabling the terminal to determine whether to send a measurement report based on this unlicensed frequency band channel information. This avoids unnecessary reporting, which would otherwise occur if the terminal were to trigger measurement reports based solely on its own measurement results, thereby reducing terminal power consumption. Furthermore, if the network device, upon receiving the measurement report reported by the terminal, combines this unlicensed frequency band channel information with handover decisions, it can ensure service performance after the terminal enters the target cell.

[0215] Optionally, the unlicensed frequency band channel information is obtained through layer 2 measurement.

[0216] Optionally, the unlicensed frequency band channel information includes at least one of the following parameters:

[0217] LBT success rate;

[0218] LBT failure rate;

[0219] The number of successful LBTs per unit time;

[0220] The number of LBT failures per unit time;

[0221] The average length of time it takes for LBT to succeed;

[0222] Load level;

[0223] The ratio of the channel idle time to the total measurement time;

[0224] The ratio of the channel occupation time to the total measurement time.

[0225] Optionally, the network side device obtains the unlicensed frequency band channel information measured by the network side device of the adjacent cell through an inter-base station interface.

[0226] Optionally, the unlicensed frequency band channel information is sent to the terminal via at least one of RRC signaling and a reference signal.

[0227] See also Figure 4 , Figure 4 A flowchart of a method for handover of a cell in an unlicensed frequency band provided in a third embodiment of the present invention is provided. The method is applied to a network-side device and includes the following steps:

[0228] Step 41: The network-side device obtains unlicensed frequency band channel information measured by itself and / or by network-side devices of neighboring cells;

[0229] Step 42: The network-side device sends first instruction information for reporting a measurement report or second instruction information for not reporting a measurement report to the terminal according to the unlicensed frequency band channel information.

[0230] It should be noted that in some optional specific implementations, if the terminal receives the first indication information, it sends a measurement report to the network-side device. In other optional specific implementations, if the terminal receives the first indication information, it also needs to determine whether to send a measurement report based on the measurement data obtained by its own measurement. If it is determined that the measurement report needs to be sent based on the measurement data obtained by its own measurement, the measurement report is sent; otherwise, the measurement report is not sent. If the terminal receives the second indication information, it does not send the measurement report.

[0231] In addition, after receiving the measurement report sent by the terminal, the network side device may make a handover decision directly based on the measurement report, or may make a handover decision based on the measurement report and unlicensed frequency band channel information.

[0232] The above-mentioned network side device may be a network side device of a serving cell, specifically a serving cell base station.

[0233] The main difference between this embodiment of the present invention and the above-mentioned embodiment 2 is that: the network side device does not directly send the unlicensed frequency band channel information to the terminal, and then the terminal determines whether it needs to send a measurement report based on the unlicensed frequency band channel information; instead, the network side device determines whether the terminal needs to send a measurement report based on the unlicensed frequency band channel information, and if necessary, sends a first indication information to the terminal; if not, sends a second indication information to the terminal, and then if the terminal receives the first indication information, it sends a measurement report, or if its own measurement data meets the reporting conditions, it sends a measurement report, and if the terminal receives the second indication information, it does not send a measurement report.

[0234] In an embodiment of the present invention, a network-side device sends a first indication message for reporting a measurement report or a second indication message for not reporting a measurement report to a terminal based on unlicensed frequency band channel information measured by the network-side device and / or by network-side devices of neighboring cells. This avoids unnecessary reporting caused by the terminal triggering measurement reports based solely on its own measurement results, thereby reducing terminal power consumption. Furthermore, if the network-side device, upon receiving a measurement report reported by the terminal, makes a handover decision based on the unlicensed frequency band channel information, service performance can be guaranteed after the terminal enters the target cell.

[0235] The following example illustrates the above-mentioned unlicensed frequency band cell switching method.

[0236] Optionally, the unlicensed frequency band channel information is obtained through layer 2 measurement.

[0237] Optionally, the unlicensed frequency band channel information includes at least one of the following parameters:

[0238] LBT success rate;

[0239] LBT failure rate;

[0240] The number of successful LBTs per unit time;

[0241] The number of LBT failures per unit time;

[0242] The average length of time it takes for LBT to succeed;

[0243] Load level;

[0244] The ratio of the channel idle time to the total measurement time;

[0245] The ratio of the channel occupation time to the total measurement time.

[0246] Optionally, the network side device obtains the unlicensed frequency band channel information measured by the network side device of the adjacent cell through an inter-base station interface.

[0247] Optionally, the step of sending, by the network side device, first indication information for reporting a measurement report or second indication information for not reporting a measurement report to the terminal according to the unlicensed frequency band channel information includes:

[0248] The network side device determines whether the parameter value in the unlicensed frequency band channel information meets a preset condition;

[0249] If the preset condition is met, the first indication information is sent; otherwise, the second indication information is sent; wherein the preset condition includes at least one of the following:

[0250] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the sixth preset condition;

[0251] The parameter value in the unlicensed frequency band channel information measured by the network-side device of the neighboring cell meets the seventh preset condition;

[0252] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the eighth preset condition, and the parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the ninth preset condition;

[0253] A parameter value in the unlicensed frequency band channel information measured by the network side device and a parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meet a tenth preset condition.

[0254] See also Figure 5 , Figure 5 1 is a flow chart of a method for handover of a cell in an unlicensed frequency band provided in a fourth embodiment of the present invention. The method is applied to a terminal and includes the following steps:

[0255] Step 51: The terminal receives handover decision information sent by a network-side device, where the handover decision information is generated by the network-side device based on unlicensed frequency band channel information;

[0256] The unlicensed frequency band channel information is obtained by measuring the network side device itself and / or by measuring the network side device of an adjacent cell.

[0257] In this embodiment of the present invention, a terminal receives handover decision information sent by a network device, which is generated by the network device based on unlicensed frequency band channel information. Specifically, the network device makes a handover decision based on its own measurements and / or unlicensed frequency band channel information measured by network devices in neighboring cells, and transmits the generated handover decision information to the terminal. This eliminates the need for the terminal to perform measurements or submit measurement reports. This not only reduces terminal power consumption but also ensures service performance after the terminal enters the target cell.

[0258] The following example illustrates the above-mentioned unlicensed frequency band cell switching method.

[0259] Optionally, the unlicensed frequency band channel information includes at least one of the following parameters:

[0260] LBT success rate;

[0261] LBT failure rate;

[0262] The number of successful LBTs per unit time;

[0263] The number of LBT failures per unit time;

[0264] The average length of time it takes for LBT to succeed;

[0265] Load level;

[0266] The ratio of the channel idle time to the total measurement time;

[0267] The ratio of the channel occupation time to the total measurement time.

[0268] In addition, how the network side device makes a switching decision based on the unlicensed frequency band channel information and the content of the switching decision information can be found in the above embodiment 1 and will not be described in detail here.

[0269] The embodiment of the present invention provides a technical solution corresponding to the above-mentioned embodiment 1, having the same inventive concept, and can achieve the same technical effect. For details, please refer to the above-mentioned embodiment 1, which will not be repeated here.

[0270] See also Figure 6 , Figure 6 1 is a flow chart of a method for handover of a cell in an unlicensed frequency band provided in a fifth embodiment of the present invention. The method is applied to a terminal and includes the following steps:

[0271] Step 61: The terminal receives unlicensed frequency band channel information sent by a network-side device;

[0272] Step 62: The terminal determines whether to send a measurement report based on the unlicensed frequency band channel information, where the unlicensed frequency band channel information is measured by the network side device itself and / or by a network side device of a neighboring cell.

[0273] In this embodiment of the present invention, a terminal receives unlicensed frequency band channel information measured by its own network device and / or by network devices of neighboring cells, and determines whether to send a measurement report based on this unlicensed frequency band channel information. This avoids unnecessary reporting caused by the terminal triggering measurement reports based solely on its own measurement results, thereby reducing terminal power consumption. Furthermore, if the network device, upon receiving the measurement report reported by the terminal, combines this unlicensed frequency band channel information with handover decisions, service performance can be guaranteed after the terminal enters the target cell.

[0274] The following example illustrates the above-mentioned unlicensed frequency band cell switching method.

[0275] Optionally, the terminal obtains the unlicensed frequency band channel information by receiving RRC signaling or reference information sent by a network side device.

[0276] Optionally, the unlicensed frequency band channel information includes at least one of the following parameters:

[0277] LBT success rate;

[0278] LBT failure rate;

[0279] The number of successful LBTs per unit time;

[0280] The number of LBT failures per unit time;

[0281] The average length of time it takes for LBT to succeed;

[0282] Load level;

[0283] The ratio of the channel idle time to the total measurement time;

[0284] The ratio of the channel occupation time to the total measurement time.

[0285] In some optional specific implementations, the step of determining whether to send a measurement report based on the unlicensed frequency band channel information includes:

[0286] Determining whether a parameter value in the unlicensed frequency band channel information meets a first measurement report triggering condition;

[0287] If the first measurement report reporting triggering condition is met, it is determined to send the measurement report.

[0288] In addition, if the parameter value in the unlicensed frequency band channel information does not meet the first measurement report reporting triggering condition, it is determined not to send the measurement report.

[0289] Further optionally, the first measurement report reporting triggering condition includes at least one of the following:

[0290] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the sixth preset condition;

[0291] For example, the LBT success rate in the unlicensed frequency band channel information measured by the network-side device is greater than or less than the sixth threshold value. The LBT success rate here is only an example. The parameters in the unlicensed frequency band channel information may also include the LBT failure rate, the number of LBT successes per unit time, the number of LBT failures per unit time, the average time taken for LBT success, the load level, the ratio of the channel idle time to the total measurement time, the ratio of the channel occupied time to the total measurement time, etc., the same below.

[0292] The parameter value in the unlicensed frequency band channel information measured by the network-side device of the neighboring cell meets the seventh preset condition;

[0293] For example, the LBT success rate in the unlicensed frequency band channel information measured by the network-side device of the neighboring cell is greater than or less than the seventh threshold.

[0294] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the eighth preset condition, and the parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the ninth preset condition;

[0295] For example, the LBT success rate in the unlicensed frequency band channel information measured by the network side device is less than or greater than the eighth threshold value, and the LBT success rate in the unlicensed frequency band channel information measured by the network side device of the adjacent cell is greater than or less than the ninth threshold value.

[0296] The parameter value in the unlicensed frequency band channel information measured by the network side device and the parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meet a tenth preset condition;

[0297] For example, the LBT success rate in the unlicensed frequency band channel information measured by the network-side device is less than or greater than the LBT success rate in the unlicensed frequency band channel information measured by the network-side device of the neighboring cell. For another example, the LBT success rate in the unlicensed frequency band channel information measured by the network-side device is less than or greater than the LBT success rate in the unlicensed frequency band channel information measured by the network-side device of the neighboring cell, and the difference is greater than the tenth threshold value.

[0298] In some other optional specific implementations, the step of determining whether to send a measurement report based on the unlicensed frequency band channel information includes:

[0299] Determining whether a parameter value in the unlicensed frequency band channel information meets a first measurement report reporting trigger condition, and determining whether the parameter value measured by the terminal meets a second measurement report reporting trigger condition;

[0300] If the parameter value in the unlicensed frequency band channel information meets the first measurement report reporting triggering condition, and the parameter value measured by the terminal meets the second measurement report reporting triggering condition, it is determined to send the measurement report.

[0301] In other optional implementations, if the parameter value in the unlicensed frequency band channel information satisfies the first measurement report reporting trigger condition, but the parameter value measured by the terminal does not satisfy the second measurement report reporting trigger condition, it is determined not to send the measurement report. Alternatively, if the parameter value measured by the terminal satisfies the second measurement report reporting trigger condition, but the parameter value in the unlicensed frequency band channel information does not satisfy the first measurement report reporting trigger condition, it is determined not to send the measurement report. Alternatively, if the parameter value in the unlicensed frequency band channel information does not satisfy the first measurement report reporting trigger condition, and the parameter value measured by the terminal does not satisfy the second measurement report reporting trigger condition, it is determined not to send the measurement report.

[0302] That is, the terminal determines whether to send the measurement report not only based on the unlicensed frequency band channel information, but also based on its own measurement data.

[0303] Specifically, for the long term evolution (LTE) system, the second measurement report reporting trigger condition is based on the reference signal received power (RSRP) of the serving cell and / or the neighboring cell measured by the terminal, the reference signal received quality (RSRQ: Reference Signal Received Quality), the reference signal-signal to interference plus noise ratio (RS-SINR: Reference Signal-Signal to Interference plus Noise Ratio), the channel state information reference signal (CSI-RS: Channel State Information Reference Signal), the channel busy rate, etc.; for the new air interface (NR: New Radio) system, the second measurement report reporting trigger condition is based on the RSRP, RSRQ, RS-SINR, etc. of the serving cell and / or the neighboring cell measured by the terminal.

[0304] The embodiment of the present invention provides a technical solution corresponding to the above-mentioned embodiment 2, with the same inventive concept, and can achieve the same technical effect. For details, please refer to the above-mentioned embodiment 2, which will not be repeated here.

[0305] See also Figure 7 , Figure 71 is a flow chart of a method for handover of a cell in an unlicensed frequency band provided in a sixth embodiment of the present invention. The method is applied to a terminal and includes the following steps:

[0306] Step 71: The terminal receives first indication information or second indication information sent by a network-side device, where the first indication information or the second indication information is generated based on unlicensed frequency band channel information, the first indication information is used to instruct the terminal to report a measurement report, and the second indication information is used to instruct the terminal not to report a measurement report;

[0307] The unlicensed frequency band channel information is obtained by measuring the network side device itself and / or by measuring the network side device of an adjacent cell.

[0308] In an embodiment of the present invention, a terminal receives first indication information or second indication information sent by a network-side device based on unlicensed frequency band channel information (measured by the terminal itself and / or by network-side devices of adjacent cells), and determines whether to send a measurement report based on the first indication information or the second indication information. This avoids unnecessary reporting caused by the terminal triggering measurement reports based solely on its own measurement results, thereby reducing terminal power consumption. In addition, if the network-side device makes a handover decision based on the unlicensed frequency band channel information after receiving the measurement report reported by the terminal, it can ensure service performance after the terminal enters the target cell.

[0309] In addition, after the step of the terminal receiving the first indication information or the second indication information sent by the network side device, the method further includes:

[0310] If the terminal receives the first indication information, sending the measurement report, or sending the measurement report when the parameter value measured by the terminal meets the second measurement report reporting triggering condition;

[0311] If the terminal receives the second indication information, it does not send a measurement report.

[0312] Optionally, the unlicensed frequency band channel information includes at least one of the following parameters:

[0313] LBT success rate;

[0314] LBT failure rate;

[0315] The number of successful LBTs per unit time;

[0316] The number of LBT failures per unit time;

[0317] The average length of time it takes for LBT to succeed;

[0318] Load level;

[0319] The ratio of the channel idle time to the total measurement time;

[0320] The ratio of the channel occupation time to the total measurement time.

[0321] The embodiment of the present invention provides a technical solution corresponding to the above-mentioned embodiment three, with the same inventive concept, and can achieve the same technical effect. For details, please refer to the above-mentioned embodiment three, which will not be repeated here.

[0322] A method for handover of a cell in an unlicensed frequency band provided in a seventh embodiment of the present invention includes the following steps:

[0323] 1. The serving cell base station and the neighboring cell base station collect and exchange unlicensed frequency band channel information. The unlicensed frequency band channel information includes the LBT failure rate of the transmitting end of the serving cell base station and the LBT failure rate of the transmitting end of the neighboring cell base station.

[0324] 2. If the LBT failure rate in the unlicensed band channel information meets the following handover conditions, the serving cell base station determines to perform handover and generates handover decision information including a handover instruction:

[0325] The LBT failure rate of the transmitting end of the serving cell base station is greater than the threshold value 1, and the LBT failure rate of the transmitting end of the adjacent cell base station is less than the threshold value 2.

[0326] 3. The serving cell base station sends the handover decision information including the handover instruction to the terminal.

[0327] An eighth embodiment of the present invention provides a method for handover of a cell in an unlicensed frequency band, comprising the following steps:

[0328] 1. The serving cell base station and the neighboring cell base station collect and exchange unlicensed frequency band channel information. The unlicensed frequency band channel information includes the LBT failure rate of the transmitting end of the serving cell base station and the LBT failure rate of the transmitting end of the neighboring cell base station.

[0329] 2. If the LBT failure rate in the unlicensed frequency band channel information does not meet the following handover conditions, the serving cell base station lists the neighboring cell as a prohibited access cell and generates handover decision information including the prohibited access cell (ie, the neighboring cell):

[0330] The LBT failure rate of the transmitting end of the serving cell base station is greater than the threshold value 1, and the LBT failure rate of the transmitting end of the adjacent cell base station is less than the threshold value 2.

[0331] 3. The serving cell base station sends handover decision information of the access-prohibited cell to the terminal, where the handover decision information also includes a prohibition effective duration.

[0332] A ninth embodiment of the present invention provides a method for handover of a cell in an unlicensed frequency band, comprising the following steps:

[0333] 1. The serving cell base station and the neighboring cell base station collect and exchange unlicensed frequency band channel information. The unlicensed frequency band channel information includes the LBT failure rate of the transmitting end of the serving cell base station and the LBT failure rate of the transmitting end of the neighboring cell base station.

[0334] 2. The serving cell base station sends the unlicensed frequency band channel information to the terminal.

[0335] 3. The terminal receives the unlicensed frequency band channel information sent by the serving cell base station, and determines whether the unlicensed frequency band channel information meets the following conditions:

[0336] The LBT failure rate of the base station transmitter of the serving cell is greater than the threshold value 3, and the LBT failure rate of the base station transmitter of the adjacent cell is less than the threshold value 4;

[0337] If the above conditions are met, the terminal sends a measurement report to the serving cell base station;

[0338] Otherwise, the terminal does not send a measurement report to the serving cell base station.

[0339] See also Figure 8 , Figure 8 FIG. 8 is a schematic diagram of the structure of a network-side device provided in Embodiment 10 of the present invention. The network-side device 80 includes:

[0340] An acquisition module 81 is configured to acquire unlicensed frequency band channel information measured by the module itself and / or by a network-side device of an adjacent cell;

[0341] The decision module 82 is used to generate switching decision information based on the unlicensed frequency band channel information and send the switching decision information to the terminal; or, the first sending module is used to send the unlicensed frequency band channel information to the terminal so that the terminal determines whether to send a measurement report based on the unlicensed frequency band channel information; or, the second sending module is used to send a first indication information for reporting a measurement report or a second indication information for not reporting a measurement report to the terminal based on the unlicensed frequency band channel information.

[0342] Optionally, the unlicensed frequency band channel information is obtained through layer 2 measurement.

[0343] Optionally, the unlicensed frequency band channel information includes at least one of the following parameters:

[0344] Listen first and then talk about the LBT success rate;

[0345] LBT failure rate;

[0346] The number of successful LBTs per unit time;

[0347] The number of LBT failures per unit time;

[0348] The average length of time it takes for LBT to succeed;

[0349] Load level;

[0350] The ratio of the channel idle time to the total measurement time;

[0351] The ratio of the channel occupation time to the total measurement time.

[0352] Optionally, the network side device obtains the unlicensed frequency band channel information measured by the network side device of the adjacent cell through an inter-base station interface.

[0353] Optionally, the decision module 82 includes:

[0354] The first generating unit is configured to generate switching decision information including a switching instruction if the parameter value in the unlicensed frequency band channel information meets a switching condition.

[0355] Optionally, the decision module 82 includes:

[0356] The second generating unit is configured to list the adjacent cell corresponding to the unlicensed frequency band channel information as a prohibited access cell if the parameter value in the unlicensed frequency band channel information does not meet the switching condition, and generate switching decision information including the prohibited access cell.

[0357] Optionally, the handover decision information further includes a prohibition validity period for the access-prohibited cell.

[0358] Optionally, the switching condition includes at least one of the following:

[0359] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the first preset condition;

[0360] The parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the second preset condition;

[0361] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the third preset condition, and the parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the fourth preset condition;

[0362] A parameter value in the unlicensed frequency band channel information measured by the network-side device and a parameter value in the unlicensed frequency band channel information measured by the network-side device of the neighboring cell meet a fifth preset condition.

[0363] Optionally, the unlicensed frequency band channel information is sent to the terminal via at least one of RRC signaling and a reference signal.

[0364] The embodiments of the present invention are product embodiments corresponding to the above-mentioned method embodiments 1, 2 and 3, so they will not be described in detail here. Please refer to the above-mentioned embodiments 1, 2 and 3 for details.

[0365] See also Figure 9 , Figure 9 FIG. 1 is a schematic diagram of the structure of a terminal provided in the eleventh embodiment of the present invention. The terminal 90 includes:

[0366] The first receiving module 91 is configured to receive handover decision information sent by a network-side device, where the handover decision information is generated by the network-side device according to unlicensed frequency band channel information; or

[0367] a receiving and judging module, configured to receive unlicensed frequency band channel information sent by a network-side device, and determine whether to send a measurement report based on the unlicensed frequency band channel information; or

[0368] a second receiving module, configured to receive first indication information or second indication information sent by a network-side device, where the first indication information or the second indication information is generated based on the unlicensed frequency band channel information, the first indication information is used to instruct the terminal to report a measurement report, and the second indication information is used to instruct the terminal not to report a measurement report;

[0369] The unlicensed frequency band channel information is obtained by measuring the network side device itself and / or by measuring the network side device of an adjacent cell.

[0370] Optionally, the unlicensed frequency band channel information includes at least one of the following parameters:

[0371] LBT success rate;

[0372] LBT failure rate;

[0373] The number of successful LBTs per unit time;

[0374] The number of LBT failures per unit time;

[0375] The average length of time it takes for LBT to succeed;

[0376] Load level;

[0377] The ratio of the channel idle time to the total measurement time;

[0378] The ratio of the channel occupation time to the total measurement time.

[0379] Optionally, the receiving and judging module includes:

[0380] A first judging unit, configured to judge whether a parameter value in the unlicensed frequency band channel information meets a first measurement report triggering condition;

[0381] The first determining unit is configured to determine whether to send a measurement report if the first measurement report reporting triggering condition is met.

[0382] Optionally, the first measurement report reporting triggering condition includes at least one of the following:

[0383] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the sixth preset condition;

[0384] The parameter value in the unlicensed frequency band channel information measured by the network-side device of the neighboring cell meets the seventh preset condition;

[0385] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the eighth preset condition, and the parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the ninth preset condition;

[0386] A parameter value in the unlicensed frequency band channel information measured by the network side device and a parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meet a tenth preset condition.

[0387] Optionally, the receiving and judging module includes:

[0388] a second determining unit, configured to determine whether a parameter value in the unlicensed frequency band channel information satisfies a first measurement report reporting trigger condition, and determine whether the parameter value measured by the terminal satisfies a second measurement report reporting trigger condition;

[0389] The second determining unit is configured to determine to send a measurement report if the parameter value in the unlicensed frequency band channel information meets the first measurement report reporting trigger condition and the parameter value measured by the terminal meets the second measurement report reporting trigger condition.

[0390] The embodiments of the present invention are product embodiments corresponding to the fourth, fifth and sixth method embodiments described above, and therefore will not be described in detail here. Please refer to the fourth, fifth and sixth embodiments described above for details.

[0391] See also Figure 10 , Figure 10 1 is a schematic structural diagram of a network side device provided in a twelfth embodiment of the present invention. The network side device 100 includes: a transceiver 101 and a processor 102;

[0392] The processor 102 is configured to obtain unlicensed frequency band channel information measured by itself and / or by a network-side device of an adjacent cell;

[0393] The processor 102 is further used to generate switching decision information based on the unlicensed frequency band channel information, and the transceiver 101 is used to send the switching decision information to the terminal; or, the transceiver 101 is used to send the unlicensed frequency band channel information to the terminal, so that the terminal determines whether to send a measurement report based on the unlicensed frequency band channel information; or, the transceiver 101 is used to send a first indication information for reporting a measurement report or a second indication information for not reporting a measurement report to the terminal based on the unlicensed frequency band channel information.

[0394] Optionally, the unlicensed frequency band channel information is obtained through layer 2 measurement.

[0395] Optionally, the unlicensed frequency band channel information includes at least one of the following parameters:

[0396] Listen first and then talk about the LBT success rate;

[0397] LBT failure rate;

[0398] The number of successful LBTs per unit time;

[0399] The number of LBT failures per unit time;

[0400] The average length of time it takes for LBT to succeed;

[0401] Load level;

[0402] The ratio of the channel idle time to the total measurement time;

[0403] The ratio of the channel occupation time to the total measurement time.

[0404] Optionally, the network side device obtains the unlicensed frequency band channel information measured by the network side device of the adjacent cell through an inter-base station interface.

[0405] Optionally, the processor 102 is configured to generate switching decision information including a switching instruction if a parameter value in the unlicensed frequency band channel information satisfies a switching condition.

[0406] Optionally, the processor 102 is used to list the adjacent cell corresponding to the unlicensed frequency band channel information as a prohibited access cell if the parameter value in the unlicensed frequency band channel information does not meet the switching condition, and generate switching decision information including the prohibited access cell.

[0407] Optionally, the handover decision information further includes a prohibition validity period for the access-prohibited cell.

[0408] Optionally, the switching condition includes at least one of the following:

[0409] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the first preset condition;

[0410] The parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the second preset condition;

[0411] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the third preset condition, and the parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the fourth preset condition;

[0412] A parameter value in the unlicensed frequency band channel information measured by the network-side device and a parameter value in the unlicensed frequency band channel information measured by the network-side device of the neighboring cell meet a fifth preset condition.

[0413] Optionally, the unlicensed frequency band channel information is sent to the terminal via at least one of RRC signaling and a reference signal.

[0414] The embodiments of the present invention are product embodiments corresponding to the above-mentioned method embodiments 1, 2 and 3, so they will not be described in detail here. Please refer to the above-mentioned embodiments 1, 2 and 3 for details.

[0415] See also Figure 11 , Figure 11 1 is a schematic diagram of the structure of a terminal provided in the thirteenth embodiment of the present invention. The terminal 110 includes: a transceiver 111 and a processor 112;

[0416] The transceiver 111 is configured to receive switching decision information sent by a network-side device, where the switching decision information is generated by the network-side device based on unlicensed frequency band channel information; or

[0417] The transceiver 111 is configured to receive unlicensed frequency band channel information sent by a network side device; the processor is configured to determine whether to send a measurement report based on the unlicensed frequency band channel information; or

[0418] The transceiver 111 is configured to receive first indication information or second indication information sent by a network-side device, where the first indication information or the second indication information is generated based on unlicensed frequency band channel information, the first indication information is used to instruct the terminal to report a measurement report, and the second indication information is used to instruct the terminal not to report a measurement report;

[0419] The unlicensed frequency band channel information is obtained by measuring the network side device itself and / or by measuring the network side device of an adjacent cell.

[0420] Optionally, the unlicensed frequency band channel information includes at least one of the following parameters:

[0421] LBT success rate;

[0422] LBT failure rate;

[0423] The number of successful LBTs per unit time;

[0424] The number of LBT failures per unit time;

[0425] The average length of time it takes for LBT to succeed;

[0426] Load level;

[0427] The ratio of the channel idle time to the total measurement time;

[0428] The ratio of the channel occupation time to the total measurement time.

[0429] Optionally, the processor 112 is configured to determine whether a parameter value in the unlicensed frequency band channel information satisfies a first measurement report reporting trigger condition; if the first measurement report reporting trigger condition is satisfied, determine to send a measurement report.

[0430] Optionally, the first measurement report reporting triggering condition includes at least one of the following:

[0431] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the sixth preset condition;

[0432] The parameter value in the unlicensed frequency band channel information measured by the network-side device of the neighboring cell meets the seventh preset condition;

[0433] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the eighth preset condition, and the parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the ninth preset condition;

[0434] A parameter value in the unlicensed frequency band channel information measured by the network side device and a parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meet a tenth preset condition.

[0435] Optionally, the processor 112 is used to determine whether the parameter value in the unlicensed frequency band channel information meets the first measurement report reporting trigger condition, and determine whether the parameter value measured by the terminal meets the second measurement report reporting trigger condition; if the parameter value in the unlicensed frequency band channel information meets the first measurement report reporting trigger condition, and the parameter value measured by the terminal meets the second measurement report reporting trigger condition, it is determined to send a measurement report.

[0436] The embodiments of the present invention are product embodiments corresponding to the fourth, fifth and sixth method embodiments described above, and therefore will not be described in detail here. Please refer to the fourth, fifth and sixth embodiments described above for details.

[0437] See also Figure 12 , Figure 12 1 is a schematic diagram of the structure of a network-side device provided in a fourteenth embodiment of the present invention. The network-side device 120 includes a processor 121, a memory 122, and a computer program stored in the memory 122 and executable on the processor 121. When the processor 121 executes the computer program, the following steps are implemented:

[0438] Obtain unlicensed frequency band channel information measured by the network side equipment of the own cell and / or the adjacent cell;

[0439] Generate switching decision information based on the unlicensed frequency band channel information and send the switching decision information to the terminal; or send the unlicensed frequency band channel information to the terminal so that the terminal determines whether to send a measurement report based on the unlicensed frequency band channel information; or send first indication information for reporting a measurement report or second indication information for not reporting a measurement report to the terminal based on the unlicensed frequency band channel information.

[0440] Optionally, the unlicensed frequency band channel information is obtained through layer 2 measurement.

[0441] Optionally, the unlicensed frequency band channel information includes at least one of the following parameters:

[0442] Listen first and then talk about the LBT success rate;

[0443] LBT failure rate;

[0444] The number of successful LBTs per unit time;

[0445] The number of LBT failures per unit time;

[0446] The average length of time it takes for LBT to succeed;

[0447] Load level;

[0448] The ratio of the channel idle time to the total measurement time;

[0449] The ratio of the channel occupation time to the total measurement time.

[0450] Optionally, the network side device obtains the unlicensed frequency band channel information measured by the network side device of the adjacent cell through an inter-base station interface.

[0451] Optionally, the processor 121 may further implement the following steps when executing the computer program:

[0452] The step of generating switching decision information according to the unlicensed frequency band channel information includes:

[0453] If the parameter value in the unlicensed frequency band channel information meets the switching condition, switching decision information including a switching instruction is generated.

[0454] Optionally, the processor 121 may further implement the following steps when executing the computer program:

[0455] The step of generating switching decision information according to the unlicensed frequency band channel information includes:

[0456] If the parameter value in the unlicensed frequency band channel information does not meet the switching condition, the neighboring cell corresponding to the unlicensed frequency band channel information is listed as a prohibited access cell, and switching decision information including the prohibited access cell is generated.

[0457] Optionally, the handover decision information further includes a prohibition validity period for the access-prohibited cell.

[0458] Optionally, the switching condition includes at least one of the following:

[0459] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the first preset condition;

[0460] The parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the second preset condition;

[0461] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the third preset condition, and the parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the fourth preset condition;

[0462] A parameter value in the unlicensed frequency band channel information measured by the network-side device and a parameter value in the unlicensed frequency band channel information measured by the network-side device of the neighboring cell meet a fifth preset condition.

[0463] Optionally, the unlicensed frequency band channel information is sent to the terminal via at least one of RRC signaling and a reference signal.

[0464] The specific working process of the embodiment of the present invention is consistent with that of the above method embodiments 1, 2 and 3, so it will not be repeated here. For details, please refer to the description of the method steps in the above methods 1, 2 and 3.

[0465] See also Figure 13 , Figure 131 is a schematic diagram of the structure of a terminal provided in Embodiment 15 of the present invention. The terminal 130 includes a processor 131, a memory 132, and a computer program stored in the memory 132 and executable on the processor 131. When the processor 131 executes the computer program, the following steps are implemented:

[0466] receiving handover decision information sent by a network-side device, where the handover decision information is generated by the network-side device according to unlicensed frequency band channel information; or

[0467] receiving unlicensed frequency band channel information sent by a network-side device, and determining whether to send a measurement report based on the unlicensed frequency band channel information; or,

[0468] receiving first indication information or second indication information sent by a network side device, where the first indication information or the second indication information is generated according to unlicensed frequency band channel information, the first indication information is used to instruct the terminal to report a measurement report, and the second indication information is used to instruct the terminal not to report a measurement report;

[0469] The unlicensed frequency band channel information is obtained by measuring the network side device itself and / or by measuring the network side device of an adjacent cell.

[0470] Optionally, the unlicensed frequency band channel information includes at least one of the following parameters:

[0471] LBT success rate;

[0472] LBT failure rate;

[0473] The number of successful LBTs per unit time;

[0474] The number of LBT failures per unit time;

[0475] The average length of time it takes for LBT to succeed;

[0476] Load level;

[0477] The ratio of the channel idle time to the total measurement time;

[0478] The ratio of the channel occupation time to the total measurement time.

[0479] Optionally, the processor 131 may further implement the following steps when executing the computer program:

[0480] The step of determining whether to send a measurement report according to the unlicensed frequency band channel information includes:

[0481] Determining whether a parameter value in the unlicensed frequency band channel information meets a first measurement report triggering condition;

[0482] If the first measurement report reporting triggering condition is met, it is determined to send the measurement report.

[0483] Optionally, the first measurement report reporting triggering condition includes at least one of the following:

[0484] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the sixth preset condition;

[0485] The parameter value in the unlicensed frequency band channel information measured by the network-side device of the neighboring cell meets the seventh preset condition;

[0486] The parameter value in the unlicensed frequency band channel information measured by the network side device meets the eighth preset condition, and the parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the ninth preset condition;

[0487] A parameter value in the unlicensed frequency band channel information measured by the network side device and a parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meet a tenth preset condition.

[0488] Optionally, the processor 131 may further implement the following steps when executing the computer program:

[0489] The step of determining whether to send a measurement report according to the unlicensed frequency band channel information includes:

[0490] Determining whether a parameter value in the unlicensed frequency band channel information meets a first measurement report reporting trigger condition, and determining whether the parameter value measured by the terminal meets a second measurement report reporting trigger condition;

[0491] If the parameter value in the unlicensed frequency band channel information meets the first measurement report reporting triggering condition, and the parameter value measured by the terminal meets the second measurement report reporting triggering condition, it is determined to send the measurement report.

[0492] The specific working process of the embodiment of the present invention is consistent with that of the above method embodiments 4, 5 and 6, so it will not be repeated here. For details, please refer to the description of the method steps in the above methods 4, 5 and 6.

[0493] Embodiment 16 of the present invention provides a computer-readable storage medium having a computer program stored thereon. When executed by a processor, the computer program implements the steps of any of the unlicensed frequency band cell handover methods described in Embodiments 1 to 6 above. For details, please refer to the description of the method steps in the corresponding embodiment above.

[0494] The network side device in the embodiment of the present invention can be a base station (Base Transceiver Station, BTS) in Global System of Mobile communication (GSM) or Code Division Multiple Access (CDMA), or a base station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), or an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a base station in a future 5G network, etc., and is not limited here.

[0495] The terminals in the embodiments of the present invention can be either wireless or wired terminals. A wireless terminal can be a device that provides voice and / or other service data connectivity to a user, a handheld device with wireless connectivity, or other processing devices connected to a wireless modem. A wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN). A wireless terminal can be a mobile terminal, such as a mobile phone (also known as a "cellular" phone) or a computer with a mobile terminal. For example, a wireless terminal can be a portable, pocket-sized, handheld, computer-built-in, or vehicle-mounted mobile device that exchanges voice and / or data with a radio access network. Examples include Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). A wireless terminal may also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, access terminal, user terminal, user agent, user device or user equipment, without limitation herein.

[0496] The above-mentioned computer-readable storage media include permanent and non-permanent, removable and non-removable media that can implement information storage by any method or technology. The information can be computer-readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, read-only compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device.

[0497] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A method for handover of an unlicensed frequency band cell, applied to a network-side device, characterized in that: include: Obtain unlicensed frequency band channel information measured by the network side equipment of the own cell and the adjacent cell; Generating handover decision information according to the unlicensed frequency band channel information, and sending the handover decision information to the terminal, the handover decision information including the prohibited access cells and the prohibition effective duration for the prohibited access cells; Alternatively, sending the unlicensed frequency band channel information to the terminal, so that the terminal determines whether to send a measurement report according to the unlicensed frequency band channel information; Alternatively, sending, to the terminal, first indication information for reporting a measurement report or second indication information for not reporting a measurement report according to the unlicensed frequency band channel information; The step of generating switching decision information according to the unlicensed frequency band channel information includes: If the parameter value in the unlicensed frequency band channel information meets the switching condition, generating switching decision information including a switching instruction; The switching condition includes at least one of the following: The parameter value in the unlicensed frequency band channel information measured by the network side device satisfies a first preset condition; the parameter value in the unlicensed frequency band channel information measured by the network side device of the adjacent cell satisfies a second preset condition; the parameter value in the unlicensed frequency band channel information measured by the network side device satisfies a third preset condition, and the parameter value in the unlicensed frequency band channel information measured by the network side device of the adjacent cell satisfies a fourth preset condition; the parameter value in the unlicensed frequency band channel information measured by the network side device and the parameter value in the unlicensed frequency band channel information measured by the network side device of the adjacent cell satisfy a fifth preset condition; The parameter value in the unlicensed frequency band channel information measured by the network side device satisfies the first preset condition if: the parameter value in the unlicensed frequency band channel information measured by the network side device is greater than or less than a first threshold value; The parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the second preset condition if: the parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell is greater than or less than a second threshold value; The parameter value in the unlicensed frequency band channel information measured by the network side device satisfies the third preset condition, and the parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell satisfies the fourth preset condition: the parameter value in the unlicensed frequency band channel information measured by the network side device is less than or greater than the third threshold value, and the parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell is greater than or less than the fourth threshold value; The fifth preset condition is satisfied between the parameter value in the unlicensed frequency band channel information measured by the network side device and the parameter value in the unlicensed frequency band channel information measured by the network side device of the adjacent cell: the parameter value in the unlicensed frequency band channel information measured by the network side device is less than or greater than the corresponding parameter value in the unlicensed frequency band channel information measured by the network side device of the adjacent cell, or the parameter value in the unlicensed frequency band channel information measured by the network side device is less than or greater than the corresponding parameter value in the unlicensed frequency band channel information measured by the network side device of the adjacent cell, and the difference is greater than the fifth threshold value.

2. The method according to claim 1, characterized in that The unlicensed frequency band channel information is obtained through layer 2 measurement.

3. The method according to claim 1, characterized in that The unlicensed frequency band channel information includes at least one of the following parameters: Listen first and then talk about the LBT success rate; LBT failure rate; The number of successful LBTs per unit time; The number of LBT failures per unit time; The average length of time it takes for LBT to succeed; Load level; The ratio of the channel idle time to the total measurement time; The ratio of the channel occupation time to the total measurement time.

4. The method according to claim 1, wherein The network side device obtains the unlicensed frequency band channel information measured by the network side device of the adjacent cell through the inter-base station interface.

5. The method according to claim 1, wherein The step of generating switching decision information according to the unlicensed frequency band channel information includes: If the parameter value in the unlicensed frequency band channel information does not meet the switching condition, the neighboring cell corresponding to the unlicensed frequency band channel information is listed as a prohibited access cell, and switching decision information including the prohibited access cell is generated.

6. The method according to claim 1, characterized in that The unlicensed frequency band channel information is sent to the terminal through at least one of RRC signaling and a reference signal.

7. A method for switching a cell in an unlicensed frequency band, applied to a terminal, characterized in that: include: receiving handover decision information sent by a network-side device, where the handover decision information is generated by the network-side device based on unlicensed frequency band channel information, the handover decision information including a prohibited access cell and a prohibition effective duration for the prohibited access cell; or, receiving unlicensed frequency band channel information sent by a network-side device, and determining whether to send a measurement report according to the unlicensed frequency band channel information; or, receiving first indication information or second indication information sent by a network side device, where the first indication information or the second indication information is generated according to unlicensed frequency band channel information, the first indication information is used to instruct the terminal to report a measurement report, and the second indication information is used to instruct the terminal not to report a measurement report; The unlicensed frequency band channel information is obtained by measuring the network side device itself and the network side device of the adjacent cell; The step of determining whether to send a measurement report according to the unlicensed frequency band channel information includes: Determining whether a parameter value in the unlicensed frequency band channel information meets a first measurement report triggering condition; If the first measurement report reporting triggering condition is met, determining to send the measurement report; The first measurement report reporting triggering condition includes at least one of the following: The parameter value in the unlicensed frequency band channel information measured by the network side device meets the sixth preset condition; The parameter value in the unlicensed frequency band channel information measured by the network-side device of the neighboring cell meets the seventh preset condition; The parameter value in the unlicensed frequency band channel information measured by the network side device meets the eighth preset condition, and the parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meets the ninth preset condition; A parameter value in the unlicensed frequency band channel information measured by the network side device and a parameter value in the unlicensed frequency band channel information measured by the network side device of the neighboring cell meet a tenth preset condition.

8. The method according to claim 7, characterized in that The unlicensed frequency band channel information includes at least one of the following parameters: LBT success rate; LBT failure rate; The number of successful LBTs per unit time; The number of LBT failures per unit time; The average length of time it takes for LBT to succeed; Load level; The ratio of the channel idle time to the total measurement time; The ratio of the channel occupation time to the total measurement time.

9. The method according to claim 8, characterized in that The step of determining whether to send a measurement report according to the unlicensed frequency band channel information includes: Determining whether a parameter value in the unlicensed frequency band channel information meets a first measurement report reporting trigger condition, and determining whether the parameter value measured by the terminal meets a second measurement report reporting trigger condition; If the parameter value in the unlicensed frequency band channel information meets the first measurement report reporting triggering condition, and the parameter value measured by the terminal meets the second measurement report reporting triggering condition, it is determined to send the measurement report.

10. A network side device, characterized in that: The network-side device is configured to perform the method according to any one of claims 1 to 6, comprising: An acquisition module is used to obtain the unlicensed frequency band channel information measured by the network side equipment of the own cell and the adjacent cell; A decision module is used to generate switching decision information based on the unlicensed frequency band channel information and send the switching decision information to the terminal, wherein the switching decision information includes cells to which access is prohibited and also includes the effective duration of the prohibition for the cells to which access is prohibited; or, a first sending module is used to send the unlicensed frequency band channel information to the terminal, so that the terminal determines whether to send a measurement report based on the unlicensed frequency band channel information; or, a second sending module is used to send a first indication information for reporting a measurement report or a second indication information for not reporting a measurement report to the terminal based on the unlicensed frequency band channel information.

11. A terminal, characterized in that: The terminal is configured to execute the method according to any one of claims 7 to 9, comprising: a first receiving module, configured to receive handover decision information sent by a network-side device, the handover decision information being generated by the network-side device based on unlicensed frequency band channel information, the handover decision information including a prohibited access cell and a prohibition effective duration for the prohibited access cell; or a receiving and judging module, configured to receive unlicensed frequency band channel information sent by a network-side device, and determine whether to send a measurement report based on the unlicensed frequency band channel information; or a second receiving module, configured to receive first indication information or second indication information sent by a network-side device, where the first indication information or the second indication information is generated based on the unlicensed frequency band channel information, the first indication information is used to instruct the terminal to report a measurement report, and the second indication information is used to instruct the terminal not to report a measurement report; The unlicensed frequency band channel information is obtained by measuring the network side device itself and the network side devices of adjacent cells.

12. A network side device, characterized in that: The network-side device is used to perform the method according to any one of claims 1 to 6, comprising: a transceiver and a processor; The processor is used to obtain unlicensed frequency band channel information measured by itself and by network-side devices of adjacent cells; The processor is further configured to generate switching decision information based on the unlicensed frequency band channel information, and the transceiver is configured to send the switching decision information to the terminal, wherein the switching decision information includes cells to which access is prohibited and also includes a prohibition effective duration for the cells to which access is prohibited; or, the transceiver is configured to send the unlicensed frequency band channel information to the terminal, so that the terminal determines whether to send a measurement report based on the unlicensed frequency band channel information; or, the transceiver is configured to send a first indication information for reporting a measurement report or a second indication information for not reporting a measurement report to the terminal based on the unlicensed frequency band channel information.

13. A terminal, characterized in that: The terminal is used to execute the method according to any one of claims 7 to 9, comprising: a transceiver and a processor; The transceiver is configured to receive handover decision information sent by a network-side device, where the handover decision information is generated by the network-side device based on unlicensed frequency band channel information, and the handover decision information includes a cell to which access is prohibited and a prohibition effective duration for the cell to which access is prohibited; or The transceiver is configured to receive unlicensed frequency band channel information sent by a network side device; the processor is configured to determine whether to send a measurement report based on the unlicensed frequency band channel information; or The transceiver is configured to receive first indication information or second indication information sent by a network-side device, where the first indication information or the second indication information is generated based on unlicensed frequency band channel information, the first indication information is used to instruct the terminal to report a measurement report, and the second indication information is used to instruct the terminal not to report a measurement report; The unlicensed frequency band channel information is obtained by measuring the network side device itself and the network side devices of adjacent cells.

14. A network-side device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor; characterized in that: When the processor executes the computer program, the unlicensed frequency band cell switching method according to any one of claims 1 to 6 is implemented.

15. A terminal comprising a memory, a processor, and a computer program stored in the memory and executable on the processor; characterized in that: When the processor executes the computer program, the unlicensed frequency band cell switching method according to any one of claims 7 to 9 is implemented.

16. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the unlicensed frequency band cell handover method according to any one of claims 1 to 9 are implemented.

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