A cell reselection method and related device

Abstract

The present application provides a cell reselection method and related apparatus, comprising: if a frequency resource carrying a paging message is different from a primary frequency resource, measuring the quality of a reference signal corresponding to the frequency resource; initiating neighboring cell measurement based on the quality of the reference signal corresponding to the frequency resource; and performing cell reselection based on the result of the neighboring cell measurement. This method avoids the problem of a terminal device being unable to decode a paging message before cell reselection is triggered when the frequency resource carrying the paging message is different from the primary frequency resource.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a cell reselection method and related devices. Background Art

[0002] At present, terminal devices will only select and reselect cells based on the quality of the reference signal of the primary frequency resource. For example, in the new radio access technology (NR), terminal devices will only select and reselect cells based on the quality of the reference signal of the initial bandwidth part (BWP). In the narrowband internet of things (NB-IoT), terminal devices will only select and reselect cells based on the quality of the reference signal of the anchor-carrier. However, terminal devices can receive paging messages on non-primary frequency resources. For example, in NB-IoT, terminal devices can receive paging messages on non-anchor carriers. Therefore, it is understandable that when the frequency resource carrying the paging message is different from the primary frequency resource, the terminal device will only reselect the cell based on the reference signal quality of the primary frequency resource. This may cause the terminal device to be unable to decode the paging message before the cell reselection is triggered. Summary of the Invention

[0003] The present application provides a cell reselection method and related devices. By implementing the embodiments of the present application, when the frequency resources carrying the paging message are different from the primary frequency resources, the problem of the terminal device being unable to decode the paging message before the cell reselection is triggered is avoided.

[0004] In a first aspect, a cell reselection method is provided, comprising:

[0005] If the frequency resource carrying the paging message is different from the primary frequency resource, measuring the quality of the reference signal corresponding to the frequency resource;

[0006] Initiate neighboring cell measurement based on the quality of the reference signal corresponding to the frequency resource;

[0007] Cell reselection is performed based on the neighboring cell measurement result.

[0008] It can be seen that in the above technical solution, when the frequency resource carrying the paging message is different from the primary frequency resource, the problem of the terminal device being unable to decode the paging message before cell reselection is triggered is avoided.

[0009] Optionally, in a possible implementation manner, the neighboring cell is a neighboring cell of a cell, and after starting the neighboring cell measurement, the method further includes:

[0010] Determining the cell as barred within a preset time; or,

[0011] Within the preset time, the quality of service corresponding to the cell is determined according to the quality and offset of the reference signal corresponding to the primary frequency resource.

[0012] It can be seen that the above technical solution avoids the terminal device from selecting or reselecting the cell after starting the neighboring cell measurement.

[0013] Optionally, in a possible implementation manner, the cell is a serving cell, and the method further includes:

[0014] Determining, within the preset time, a quality of service corresponding to the cell according to a quality of a reference signal corresponding to the frequency resource;

[0015] The service quality corresponding to the cell is determined according to an average value or a weighted average value of the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the primary frequency resource within the preset time.

[0016] It can be seen that the above technical solution avoids the terminal device from selecting the cell after starting the neighboring cell measurement.

[0017] Optionally, in a possible implementation manner, measuring the quality of a reference signal corresponding to the frequency resource includes:

[0018] The quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the primary frequency resource are alternately measured.

[0019] It can be seen that the above technical solution realizes alternate measurement of the quality of the reference signal corresponding to the frequency resource carrying the paging message and the quality of the reference signal corresponding to the primary frequency resource when the frequency resource carrying the paging message is different from the primary frequency resource.

[0020] Optionally, in a possible implementation manner, the initiating neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource includes:

[0021] Determine the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the primary frequency resource, whichever has the worst quality;

[0022] If the quality of the reference signal with the worst quality is lower than the threshold, the neighboring cell measurement is started.

[0023] It can be seen that in the above technical solution, the neighboring cell measurement is started based on the quality of the reference signal corresponding to the frequency resource carrying the paging message and the quality of the reference signal corresponding to the main frequency resource, whichever is the worst, to prepare for subsequent cell reselection.

[0024] Optionally, in a possible implementation manner, the initiating neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource includes:

[0025] If the quality of the reference signal corresponding to the frequency resource is lower than a threshold, the neighboring cell measurement is started.

[0026] It can be seen that in the above technical solution, neighboring cell measurement is started according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, thereby preparing for subsequent cell reselection.

[0027] Optionally, in a possible implementation manner, the method further includes:

[0028] Receive indication information sent by an access network device, where the indication information is used to instruct the access network device to support the terminal device to start the neighboring cell measurement based on the quality of the reference signal corresponding to the frequency resource.

[0029] It can be seen that in the above technical solution, by receiving indication information, it is achieved that when the access network device supports the terminal device to start neighboring cell measurement according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, the terminal device can start neighboring cell measurement according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, thereby preparing for subsequent cell reselection.

[0030] Optionally, in a possible implementation manner, the method further includes: receiving a preset time and threshold sent by the access network device.

[0031] It is understandable that the terminal device may receive a first system message sent by the access network device, where the first system message includes the preset time and the threshold. The terminal device may receive a second system message and a third system message sent by the access network device, where the second system message includes the preset time and the third system message includes the threshold.

[0032] It can be seen that the above technical solution realizes sending preset time and threshold to the terminal device, preparing for the subsequent terminal device to start neighboring area measurement, cell selection, and cell reselection.

[0033] In a second aspect, a terminal device is provided, the terminal device including a processing module,

[0034] The processing module is configured to measure the quality of a reference signal corresponding to a frequency resource carrying a paging message if the frequency resource is different from the primary frequency resource; initiate neighboring cell measurement based on the quality of the reference signal corresponding to the frequency resource; and perform cell reselection based on the result of the neighboring cell measurement.

[0035] Optionally, in a possible implementation manner, the neighboring area is a neighboring area of ​​a cell, and after the neighboring area measurement is started, the processing module is further configured to:

[0036] Determining the cell as barred within a preset time; or,

[0037] Within the preset time, the quality of service corresponding to the cell is determined according to the quality and offset of the reference signal corresponding to the primary frequency resource.

[0038] Optionally, in a possible implementation manner, the cell is a serving cell, and the processing module is further configured to:

[0039] Determining the quality of service corresponding to the cell according to the quality of the reference signal corresponding to the frequency resource within the preset time; or

[0040] The quality of service corresponding to the cell is determined within the preset time according to an average value or a weighted average value of the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the primary frequency resource.

[0041] Optionally, in a possible implementation, when measuring the quality of the reference signal corresponding to the frequency resource, the processing module is used to alternately measure the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the main frequency resource.

[0042] Optionally, in a possible implementation, when the neighboring cell measurement is started based on the quality of the reference signal corresponding to the frequency resource, the processing module is used to determine the quality of the reference signal with the worst quality between the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the main frequency resource; if the quality of the reference signal with the worst quality is lower than the threshold, the neighboring cell measurement is started.

[0043] Optionally, in a possible implementation, when the neighboring cell measurement is started based on the quality of the reference signal corresponding to the frequency resource, the processing module is used to start the neighboring cell measurement if the quality of the reference signal corresponding to the frequency resource is lower than a threshold.

[0044] Optionally, in a possible implementation, the terminal device further includes a transceiver module, which is used to receive indication information sent by the access network device, and the indication information is used to instruct the access network device to support the terminal device to start the neighboring cell measurement based on the quality of the reference signal corresponding to the frequency resource.

[0045] Optionally, in a possible implementation manner, the transceiver module is further configured to receive a preset time and threshold sent by the access network device.

[0046] In a third aspect, a cell reselection method is provided, comprising:

[0047] Send indication information to the terminal device, where the indication information is used to instruct the access network device to support the terminal device to start neighboring cell measurement based on the quality of the reference signal corresponding to the frequency resource carrying the paging message.

[0048] It can be seen that in the above technical solution, by sending indication information, when the access network device supports the terminal device to start the neighboring cell measurement according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, the terminal device can start the neighboring cell measurement according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, thereby preparing for subsequent cell reselection.

[0049] Optionally, in a possible implementation manner, the method further includes: sending a preset time and threshold to the terminal device.

[0050] It is understandable that the access network device may send a first system message to the terminal device, where the first system message includes the preset time and the threshold. The access network device may also send a second system message and a third system message to the terminal device, where the second system message includes the preset time and the third system message includes the threshold.

[0051] It can be seen that the above technical solution realizes sending preset time and threshold to the terminal device, preparing for the subsequent terminal device to start neighboring area measurement, cell selection, and cell reselection.

[0052] In a fourth aspect, an access network device is provided, which includes a transceiver module, and the transceiver module is used to send indication information to the terminal device, and the indication information is used to instruct the access network device to support the terminal device to start neighboring cell measurement based on the quality of the reference signal corresponding to the frequency resource carrying the paging message.

[0053] Optionally, in a possible implementation manner, the transceiver module is further configured to send a preset time and threshold to the terminal device.

[0054] It is understandable that the transceiver module can be used to send a first system message to the terminal device, where the first system message includes the preset time and the threshold. The transceiver module can also be used to send a second system message and a third system message to the terminal device, where the second system message includes the preset time and the third system message includes the threshold.

[0055] In the fifth aspect, a terminal device is provided, comprising a processor, a memory, an input interface and an output interface, wherein the input interface is used to receive information from other communication devices outside the terminal device, and the output interface is used to output information to other communication devices outside the terminal device, and the processor calls the computer program stored in the memory to implement any method described in the first aspect.

[0056] In a sixth aspect, a computer-readable storage medium is provided, characterized in that a computer program is stored in the computer-readable storage medium, and when the computer program is executed, the method described in any one of the first aspects is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] The following is a brief introduction to the drawings required for describing the embodiments or prior art.

[0058] in:

[0059] Figure 1 It is the basic architecture of the communication system provided by the embodiment of the present application;

[0060] Figure 2 is a schematic diagram of a cell reselection method provided in an embodiment of the present application;

[0061] Figure 3 is a schematic diagram of another cell reselection method provided in an embodiment of the present application;

[0062] Figure 4 is a schematic diagram of another cell reselection method provided in an embodiment of the present application;

[0063] Figure 5 is a schematic diagram of another cell reselection method provided in an embodiment of the present application;

[0064] Figure 6 This is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application;

[0065] Figure 7 This is a schematic diagram of the structure of an access network device provided in an embodiment of the present application;

[0066] Figure 8 This is a simplified schematic diagram of the structure of a terminal device provided in an embodiment of the present application;

[0067] Figure 9 This is a simplified structural diagram of an access network device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0068] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0069] First, the technical solutions of the embodiments of the present application can be applied to the long term evolution (LTE) architecture, and can also be applied to the universal mobile telecommunications system (UMTS) terrestrial radio access network (UTRAN) architecture, or the global system for mobile communication (GSM), the enhanced data rate for GSM evolution (EDGE) system radio access network (GSM EDGE radio access network, GERAN) architecture, or the fifth generation mobile communication technology (5G), etc. In the UTRAN architecture or the GERAN architecture, the functions of the mobility management entity (MME) are performed by the serving general packet radio service (GPRS) support node (SGSN), and the functions of the SGW\PGW are performed by the gateway GPRS support node (GGSN). The technical solutions of the embodiments of the present application can also be applied to other communication systems, such as public land mobile network (PLMN) systems, and even communication systems after 5G, etc., and the embodiments of the present application are not limited to this.

[0070] In order to facilitate understanding of this application, relevant technical knowledge involved in the embodiments of this application is introduced here.

[0071] In the existing solution, when the terminal device is in an idle state or an inactive state, the terminal device will only select and reselect a cell based on the quality of the reference signal of the primary frequency resource. For example, in the new radio access technology (NR), the terminal device will only select and reselect a cell based on the quality of the reference signal of the initial bandwidth part (BWP). In the narrowband internet of things (NB-IoT), the terminal device will only select and reselect a cell based on the quality of the reference signal of the anchor-carrier. The terminal device can monitor paging messages on non-primary frequency resources. For example, in NB-IoT, the terminal device can monitor paging messages on non-anchor carriers. Therefore, it is understandable that when the frequency resource carrying the paging message is different from the primary frequency resource, the terminal device will only reselect the cell based on the reference signal quality of the primary frequency resource. This may cause the terminal device to be unable to decode the paging message before the cell reselection is triggered.

[0072] Based on this, an embodiment of the present application proposes a cell reselection method to solve the above problem. The embodiment of the present application is introduced in detail below.

[0073] See also Figure 1 , Figure 1 This is the basic architecture of the communication system provided by the embodiment of this application. Figure 1 As shown, the communication system may include a terminal device 10, an access network device 11, and a core network device 12. The terminal device 10 is in an idle state or an inactive state. The access network device 11 can be connected to the core network device 12 via a wired manner, such as an NG-interface or an NG-U interface. The access network device 11 can be connected to other access network devices via a wired manner, such as an Xn interface. It can be understood that the access network device 11 can communicate with the terminal device 10 and the core network device 12 respectively. For example, the core network device 12 can initiate paging.

[0074] Furthermore, the terminal device 10 may be a device that includes wireless transceiver functions and can cooperate with the access network device 11 to provide communication services to users. Specifically, the terminal device may refer to user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, terminal, wireless communication device, user agent or user device. For example, the terminal device may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal in a 5G network or a terminal in a future evolved PLMN, etc., and the embodiments of the present application are not limited to this.

[0075] The access network device 11 can be a device for communicating with the terminal device 10 and the core network device 12. For example, it can be a base transceiver station (BTS) in a GSM system or CDMA, a base station (nodeB, NB) in a wideband code division multiple access (WCDMA) system, an evolutionary base station (eNB or eNodeB) in an LTE system, a wireless controller in a cloud radio access network (CRAN) scenario, or a new radionodeB (gNB) in 5G, or the access network device 11 can be a relay station, an access point, a vehicle-mounted device, a wearable device, a network-side device in a network after 5G, or an access network device in a future evolved PLMN network, etc.

[0076] The core network device 12 corresponds to different devices in different communication systems. For example, in a 3G system, it corresponds to a serving GPRS support node (SGSN) and / or a gateway GPRS support node (GGSN), in a 4G system, it corresponds to an MME or S-GW, and in a 5G system, it corresponds to an access and mobility management function (AMF), a session management function (SMF) or a user plane function (UPF), etc.

[0077] The following describes how to start neighboring cell measurement based on the quality of the reference signal corresponding to the frequency resource carrying the paging message and the quality of the reference signal corresponding to the main frequency resource, whichever is the worst. It can be understood that in this application, the main frequency resource can be the initialBWP in NR or the anchorcarrier in NB-IoT, which is not limited here. Similarly, the frequency resource carrying the paging message can be the BWP other than the initialBWP in NR, or the non-anchorcarrier in NB-IoT, which is not limited here.

[0078] For further information, see Figure 2 , Figure 2 FIG is a schematic diagram of a cell reselection method provided in an embodiment of the present application. Figure 1 , Figure 2 The terminal device is Figure 1 The terminal device 10 in Figure 2 The access network equipment in Figure 1 The access network device 11 in the Figure 2 As shown, the method includes but is not limited to the following steps:

[0079] 201. If the frequency resource carrying the paging message is different from the primary frequency resource, the terminal device alternately measures the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the primary frequency resource.

[0080] The reference signal corresponding to the frequency resource and the reference signal corresponding to the primary frequency resource may include one of the following: a cell-specific reference signal (CRS), a synchronization signal block (SSB), and a channel state information reference signal (CSI-RS). Furthermore, the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the primary frequency resource may include at least one of the following: reference signal received power (RSRP), reference signal received quality (RSRQ), and signal to interference plus noise ratio (SINR).

[0081] It should be noted that before the terminal device alternately measures the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the primary frequency resource, the terminal device measures the quality of the reference signal corresponding to the primary frequency resource, and selects or reselects a cell based on the quality of the reference signal corresponding to the primary frequency resource, and then resides in the current serving cell. For details, please refer to Figure 3 , Figure 3 FIG. 1 is a schematic diagram of another cell reselection method provided in an embodiment of the present application. Figure 3 As shown, the gray rectangle represents the quality of the reference signal corresponding to the main frequency resource, and the rectangle filled with slashes represents the quality of the reference signal corresponding to the frequency resource carrying the paging message. It can be understood that before the terminal device reselects the cell based on the quality of the reference signal corresponding to the main frequency resource, the terminal device measures the quality of the reference signal corresponding to the main frequency resource. After the terminal device reselects the cell based on the quality of the reference signal corresponding to the main frequency resource and resides in the serving cell, at this time, if the frequency resource carrying the paging message is different from the main frequency resource. The terminal device can alternately measure the quality of the reference signal corresponding to the frequency resource carrying the paging message and the quality of the reference signal corresponding to the main frequency resource. Specifically, for example, in combination Figure 3 , from left to right, there is a white rectangle under the first rectangle filled with diagonal lines. The white rectangle represents the quality of the reference signal corresponding to the primary frequency resource. That is, at this time, the terminal device measures the quality of the reference signal corresponding to the frequency resource carrying the paging message, but does not measure the quality of the reference signal corresponding to the primary frequency resource. For another example, combined with Figure 3From left to right, after a terminal device performs cell reselection based on the quality of the reference signal corresponding to the primary frequency resource and camps on the serving cell, a white rectangle appears above the first gray rectangle. This white rectangle represents the quality of the reference signal corresponding to the frequency resource carrying the paging message. This means that the terminal device is measuring the quality of the reference signal corresponding to the primary frequency resource, not the reference signal corresponding to the frequency resource carrying the paging message.

[0082] 202. The terminal device determines the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the primary frequency resource, whichever has the worst quality.

[0083] 203. If the quality of the reference signal with the worst quality is lower than the threshold, the terminal device starts neighboring cell measurement.

[0084] The threshold may be configured by the access network device or preset by the protocol.

[0085] The neighboring cell is a neighboring cell of the cell. The terminal device can determine the cell according to the quality of the reference signal corresponding to the primary frequency resource.

[0086] It can be understood that if the quality of the reference signal corresponding to the frequency resource is higher than the quality of the reference signal corresponding to the primary frequency resource, the terminal device will start the neighboring cell measurement when the quality of the reference signal corresponding to the primary frequency resource is lower than the threshold. It can be understood that at this time, the cell reselection measurement is triggered due to the poor quality of the reference signal corresponding to the primary frequency resource. If the quality of the reference signal corresponding to the frequency resource is lower than the quality of the reference signal corresponding to the primary frequency resource, the terminal device can start the neighboring cell measurement when the quality of the reference signal corresponding to the frequency resource is lower than the threshold. It can be understood that at this time, the cell reselection measurement is triggered due to the poor quality of the reference signal corresponding to the frequency resource.

[0087] 204. Based on the neighboring cell measurement result, the terminal device performs cell reselection.

[0088] It can be seen that in the above technical solution, when the frequency resource carrying the paging message is different from the main frequency resource, the neighboring cell measurement is started based on the quality of the reference signal corresponding to the frequency resource carrying the paging message and the quality of the reference signal corresponding to the main frequency resource, whichever is the worst. This avoids the problem that the terminal device is unable to decode the paging message before the cell reselection is triggered.

[0089] The following describes how to start neighbor cell measurement based on the quality of the reference signal corresponding to the frequency resource carrying the paging message. Figure 4 , Figure 4 This is a schematic diagram of another cell reselection method provided in an embodiment of the present application. Figure 1 , Figure 4The terminal device is Figure 1 The terminal device 10 in Figure 4 The access network equipment in Figure 1 The access network device 11 in the Figure 4 As shown, the method includes but is not limited to the following steps:

[0090] 401. If the frequency resource carrying the paging message is different from the primary frequency resource, the terminal device measures the quality of the reference signal corresponding to the frequency resource.

[0091] Among them, the reference signal corresponding to the frequency resource can be referred to Figure 2 The quality of the reference signal corresponding to the frequency resource can be referred to in step 201. Figure 2 Step 201 is not described in detail here.

[0092] It should be noted that before the terminal device measures the quality of the reference signal corresponding to the frequency resource, the terminal device measures the quality of the reference signal corresponding to the primary frequency resource, and selects or reselects a cell based on the quality of the reference signal corresponding to the primary frequency resource, and then resides in the current serving cell. Figure 5 , Figure 5 FIG. 1 is a schematic diagram of another cell reselection method provided in an embodiment of the present application. Figure 5 As shown, the gray rectangle represents the quality of the reference signal corresponding to the primary frequency resource, and the white rectangle represents the quality of the reference signal corresponding to the frequency resource carrying the paging message. It can be understood that before the terminal device selects or reselects a cell based on the quality of the reference signal corresponding to the primary frequency resource and resides in the current cell, the terminal device measures the quality of the reference signal corresponding to the primary frequency resource of the cell. After the terminal device selects or reselects a cell based on the quality of the reference signal corresponding to the primary frequency resource and resides in the cell, at this time, if the frequency resource carrying the paging message is different from the primary frequency resource, the terminal device can measure the quality of the reference signal corresponding to the frequency resource carrying the paging message.

[0093] Alternatively, step 401 may also be Figure 2 That is, if the frequency resource carrying the paging message is different from the primary frequency resource, the terminal device alternately measures the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the primary frequency resource. Then, steps 402 to 403 are executed.

[0094] 402. If the quality of the reference signal corresponding to the frequency resource is lower than the threshold, the terminal device starts neighboring cell measurement.

[0095] Among them, the threshold can be referred to Figure 2 Step 203 is not described here. Figure 2 Step 203 is not described in detail here.

[0096] If the quality of the reference signal corresponding to the frequency resource is lower than the quality of the reference signal corresponding to the primary frequency resource, the terminal device may initiate neighboring cell measurement when the quality of the reference signal corresponding to the frequency resource is lower than the threshold. This can be understood as triggering cell reselection measurement due to the poor quality of the reference signal corresponding to the frequency resource. It should be noted that the quality of the primary frequency resource can still trigger neighboring cell measurement at this time.

[0097] 403. The terminal device performs cell reselection based on the neighboring cell measurement result.

[0098] It can be seen that in the above technical solution, when the frequency resources carrying the paging message are different from the main frequency resources, the neighboring cell measurement is started based on the quality of the reference signal corresponding to the frequency resources carrying the paging message, thereby avoiding the problem that the terminal device cannot decode the paging message before the cell reselection is triggered.

[0099] Optionally, in a possible implementation manner, after starting the neighboring cell measurement, the method further includes:

[0100] Within a preset time, the terminal device determines that the cell is barred; or,

[0101] Within a preset time, the terminal device determines the service quality corresponding to the cell based on the quality and offset of the reference signal corresponding to the primary frequency resource.

[0102] It should be noted that initiating the neighboring cell measurement means initiating the neighboring cell measurement if the quality of the reference signal corresponding to the frequency resource is lower than the threshold. That is, because the quality of the reference signal corresponding to the frequency resource is lower than the threshold, triggering the neighboring cell measurement, after initiating the neighboring cell measurement, within a preset time, the terminal device determines that the cell is prohibited; or, within a preset time, the terminal device determines the service quality corresponding to the cell based on the quality of the reference signal corresponding to the primary frequency resource and the offset.

[0103] The preset time may be configured or pre-set by the access network device.

[0104] Among them, you can refer to the community Figure 2 Step 203 is not described in detail here.

[0105] It can be understood that if the cell is a service cell, after starting the neighboring cell measurement, within a preset time, the terminal device can determine that the cell is prohibited, or it can determine the corresponding service quality of the cell based on the quality and offset of the reference signal corresponding to the main frequency resource.

[0106] After the terminal device leaves the cell, the cell is no longer a serving cell. After initiating the neighbor cell measurement, within a preset time, the terminal device can determine that the cell is prohibited; or determine the service quality of the cell based on the quality and offset of the reference signal corresponding to the primary frequency resource.

[0107] For example, if the cell is cell A, which is the serving cell, and the neighboring cell of cell A is cell B, after initiating neighboring cell measurement, within a preset time, the terminal device can determine that cell A is prohibited, or determine the service quality corresponding to cell A based on the quality and offset of the reference signal corresponding to the primary frequency resource of cell A.

[0108] After the terminal device leaves cell A and reselects to cell B, that is, at this time, cell A is not the serving cell of the terminal device, and cell A is a neighboring cell of cell B. After the neighboring cell measurement is started, within the preset time, the terminal device can determine that cell A is prohibited, or determine the corresponding service quality of cell A based on the quality and offset of the reference signal corresponding to the primary frequency resource of cell A.

[0109] Furthermore, the terminal device determines that the cell is prohibited, which can be understood as follows: if the terminal device regards the cell status of the cell as "barred" because the quality of the reference signal corresponding to the frequency resource is lower than the threshold, the terminal device excludes the cell from the candidate cells when performing cell reselection within a preset time. The cell may be a service cell or not a service cell: for example, the terminal device deletes the cell from the candidate cell list according to the identifier of the cell; or, the terminal device determines the cell as an unselectable cell according to the identifier of the cell; or, the terminal device receives a neighboring cell list including the cell, and determines not to measure the service quality corresponding to the cell according to the identifier of the cell; or, the terminal device receives the frequency information corresponding to the cell, and when the cell is detected according to the frequency information corresponding to the cell, cancels the addition of the cell to the candidate cell list according to the identifier of the cell.

[0110] The terminal device determines that the cell is prohibited, that is, determines that the cell status of the cell is prohibited.

[0111] It should be noted that within a preset time, the terminal device can save the cell's identifier and offset. It is understandable that if the cell is a serving cell, the terminal device can save the cell's identifier and offset within the preset time. If the cell is not a serving cell, the terminal device can save the cell's identifier and offset within the preset time.

[0112] It is understandable that the candidate cell list is a cell list maintained locally by the terminal device. The neighbor cell list may be provided by the network side.

[0113] Furthermore, the terminal device determines the service quality corresponding to the cell according to the quality and offset of the reference signal corresponding to the primary frequency resource, including: for high priority reselection and low priority reselection, the service quality corresponding to the cell is determined by Srxlev and the offset, or, by Squal and the offset; for reselection with the same priority, if the cell is a serving cell, the service quality corresponding to the cell is determined by R s and offset; if the cell is not a serving cell, the service quality of the cell is determined by R n and offset determined.

[0114] Srxlev=Q rxlevmeas –(Q rxlevmin +Q rxlevminoffset )–Pcompensation-Qoffset temp

[0115] Squal=Q qualmeas –(Q qualmin +Q qualminoffset )-Qoffset temp

[0116] Wherein, Srxlev is the cell selection receive level value (Cell selection RX level value);

[0117] Squal is the cell selection signal quality value (Cell selection quality value);

[0118] Q rxlevmeas is the measured cell RX level value (RSRP);

[0119] Q rxlevmin is the minimum required RX level in the cell;

[0120] Q rxlevminoffset Q rxlevmin The offset of

[0121] P compensation is max(P EMAX –P PowerClass ,0),P EMAXThe maximum TX power level a UE may use when transmitting on the uplink in the cell is the maximum output power allowed by the access network equipment. PowerClass is the maximum output power determined according to the power level of the terminal equipment, where P PowerClass is the transmission capability of the terminal device itself, that is, the maximum output power of the terminal device determined by the power level, P EMAX The maximum output power allowed by the access network equipment for the terminal device;

[0122] Q offsettemp is a temporary offset (offset temporarily applied to a cell);

[0123] Q qualmeas is the measured cell signal quality value (reference signal received quality) (measured cell quality value (RSRQ));

[0124] Q qualmin is the minimum required quality level in the cell;

[0125] Q qualminoffset Q qualmin The offset of .

[0126] Rs=Qmeas,s+Qhyst-Qoffset temp

[0127] R n =Qmeas,n-Qoffset-Qoffset temp

[0128] Among them, Rs and R n The cell ranking criteria (cell-ranking criterion) for the serving cell and the neighboring cell respectively;

[0129] Qmeas,s is the measured cell RX level value (RSRP) used for cell reselection;

[0130] For same-frequency measurements: If Qoffset s,n Valid, Qoffset is equal to Qoffset s,n, otherwise Qoffset is equal to zero.

[0131] For off-frequency: If Qoffset s,n Valid, Qoffset is equal to Qoffset s,n Add Qoffset frequency , otherwise Qoffset is equal to Qoffset frequency .

[0132] Qoffset temp A temporary offset (offset temporarily applied to a cell).

[0133] For example, for high-priority reselection and low-priority reselection, when the cell selection received signal level value is used to evaluate the service quality of the cell, assuming that the service quality of the cell is Srxlev', Srxlev' can be determined by subtracting the offset from Srxlev, and in this case, the offset is a positive number. Srxlev' can also be determined by adding the offset to Srxlev, and in this case, the offset is a negative number. Further, when the cell selection signal quality value is used to evaluate the service quality of the cell, assuming that the service quality of the cell is Squal', Squal' can be determined by subtracting the offset from Squal, and in this case, the offset is a negative number. Squal' can also be determined by adding the offset to Squal, and in this case, the offset is a positive number.

[0134] For example, for reselection with the same priority, if the cell is a serving cell, assuming that the service quality of the cell is R s ', then R s 'Can be made by R s Subtract the offset to determine, in this case, the offset is a positive number. s ' can also be done by R s Add the offset to determine, in this case, the offset is a negative number.

[0135] For example, for reselection with the same priority, if the cell is not a serving cell, assuming that the service quality of the cell is R n ', then R n 'Can be made by R n Subtract the offset to determine, in this case, the offset is a positive number. n ' can also be done by R n Add the offset to determine, in this case, the offset is a negative number.

[0136] It can be seen that the above technical solution achieves the goal of avoiding the terminal device from selecting or reselecting the cell after starting the neighboring cell measurement. Preventing the terminal device from selecting the cell can be understood as follows: when the cell is a serving cell, due to the poor quality of the reference signal corresponding to the frequency resource, the cell reselection is triggered. When determining the cell quality, the cell state of the cell is set to prohibited, or the offset is used to lower the service quality of the cell, so as to avoid staying in the cell and tend to switch to a neighboring cell; avoiding reselecting the cell again can be understood as follows: when the terminal device has reselected to a cell other than the cell, the cell is no longer a serving cell. When the terminal device triggers cell reselection and performs cell quality determination, the cell state of the cell is set to prohibited, or the offset is used to lower the service quality of the cell, so as to avoid reselecting the cell again and forming a ping-pong effect.

[0137] Optionally, in a possible implementation manner, the cell is a serving cell, and the method further includes:

[0138] Within a preset time, the terminal device determines the service quality corresponding to the cell based on the quality of the reference signal corresponding to the frequency resource;

[0139] Within a preset time, the service quality corresponding to the cell is determined according to an average value or a weighted average value of the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the primary frequency resource.

[0140] For example, the quality of the reference signal corresponding to the frequency resource is X, the quality of the reference signal corresponding to the primary frequency resource is Y, and the service quality corresponding to the cell can be Can also be Here, M is the weight corresponding to X, and N is the weight corresponding to Y. It should be noted that M and N can be configured on the network side or specified by the protocol.

[0141] It can be seen that the above technical solution avoids the terminal device from selecting the cell, so that the terminal device reselects to other cells as much as possible. Preventing the terminal device from selecting the cell can be understood as triggering cell reselection due to the poor quality of the reference signal corresponding to the frequency resource when the cell is the serving cell. When determining the cell quality, the reference signal quality corresponding to the frequency resource carrying the paging message is used as the service quality corresponding to the cell, or the average or weighted average of the reference signal quality corresponding to the frequency resource carrying the paging message and the reference signal quality corresponding to the primary frequency resource is used as the service quality of the cell, avoiding staying in the cell and tending to switch to a neighboring cell.

[0142] Optionally, in a possible implementation manner, the method further includes:

[0143] The terminal device receives indication information sent by the access network device, where the indication information is used to instruct the access network device to support the terminal device to start neighboring cell measurement based on the quality of the reference signal corresponding to the frequency resource.

[0144] Correspondingly, the access network device may send indication information to the terminal device.

[0145] It can be understood that after the terminal device receives the indication information, the terminal device can start the neighboring cell measurement based on the quality of the reference signal corresponding to the frequency resource carrying the paging message, or start the neighboring cell measurement based on the quality of the reference signal corresponding to the main frequency resource.

[0146] It can be seen that in the above technical solution, by receiving indication information, it is achieved that when the access network device supports the terminal device to start neighboring cell measurement according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, the terminal device can start neighboring cell measurement according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, thereby preparing for subsequent cell reselection.

[0147] Optionally, in a possible implementation manner, the method further includes: the terminal device receiving a preset time and threshold sent by the access network device.

[0148] Correspondingly, the access network device may send the preset time and threshold to the terminal device.

[0149] It is understandable that the terminal device can receive a first system message sent by the access network device, the first system message including a preset time and a threshold. The terminal device can receive a second system message and a third system message sent by the access network device, the second system message including a preset time, and the third system message including a threshold.

[0150] It can be seen that the above technical solution realizes sending preset time and threshold to the terminal device, preparing for the subsequent terminal device to start neighboring area measurement, cell selection, and cell reselection.

[0151] See also Figure 6 , Figure 6 This is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application. The terminal device 600 can be applied to the above Figures 2 to 5 In the method shown, Figure 6 As shown, the terminal device 600 includes: a processing module 601 and a transceiver module 602, wherein:

[0152] Processing module 601 is used to measure the quality of the reference signal corresponding to the frequency resource if the frequency resource carrying the paging message is different from the primary frequency resource; start neighboring cell measurement based on the quality of the reference signal corresponding to the frequency resource; and perform cell reselection based on the result of the neighboring cell measurement.

[0153] Among them, for the reference signal corresponding to the frequency resource, please refer to Figure 2 Step 201 is not described here. For the quality of the reference signal corresponding to the frequency resource, please refer to Figure 2 Step 201 is not described here. Figure 2 Step 203 is not described in detail here.

[0154] It can be seen that in the above technical solution, when the frequency resource carrying the paging message is different from the primary frequency resource, the problem of the terminal device being unable to decode the paging message before cell reselection is triggered is avoided.

[0155] Optionally, in a possible implementation manner, the neighboring area is a neighboring area of ​​a cell. After the neighboring area measurement is started, the processing module 601 is further configured to:

[0156] Determine that the cell is barred within a preset time; or,

[0157] Within the preset time, the service quality of the cell is determined based on the quality and offset of the reference signal corresponding to the primary frequency resource. Figure 4 Step 403 is not described here. Figure 4 Step 403 is not described here. Regarding determining the service quality of the cell according to the quality of the reference signal corresponding to the primary frequency resource and the offset setting, please refer to Figure 4 Step 403 is not described here in detail.

[0158] It can be seen that the above technical solution avoids the terminal device from selecting or reselecting the cell after starting the neighboring cell measurement.

[0159] Optionally, in a possible implementation manner, the cell is a serving cell, and the processing module 601 is further configured to:

[0160] Determine the quality of service corresponding to the cell according to the quality of the reference signal corresponding to the frequency resource within a preset time; or

[0161] Within a preset time, the service quality corresponding to the cell is determined according to an average value or a weighted average value of the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the primary frequency resource.

[0162] It can be seen that the above technical solution avoids the terminal device from selecting the cell after starting the neighboring cell measurement.

[0163] Optionally, in a possible implementation, when measuring the quality of the reference signal corresponding to the frequency resource, the processing module 601 is configured to alternately measure the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the primary frequency resource.

[0164] It can be seen that the above technical solution realizes alternate measurement of the quality of the reference signal corresponding to the frequency resource carrying the paging message and the quality of the reference signal corresponding to the primary frequency resource when the frequency resource carrying the paging message is different from the primary frequency resource.

[0165] Optionally, in a possible implementation, when the neighboring cell measurement is started based on the quality of the reference signal corresponding to the frequency resource, the processing module 601 is used to determine the quality of the reference signal with the worst quality between the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the main frequency resource; if the quality of the reference signal with the worst quality is lower than the threshold, the neighboring cell measurement is started.

[0166] Among them, the threshold can be referred to Figure 2 Step 203 is not described in detail here.

[0167] It can be seen that in the above technical solution, the neighboring cell measurement is started based on the quality of the reference signal corresponding to the frequency resource carrying the paging message and the quality of the reference signal corresponding to the main frequency resource, whichever is the worst, to prepare for subsequent cell reselection.

[0168] Optionally, in a possible implementation, when starting neighbor cell measurement based on the quality of the reference signal corresponding to the frequency resource, the processing module 601 is used to start neighbor cell measurement if the quality of the reference signal corresponding to the frequency resource is lower than a threshold.

[0169] It can be seen that in the above technical solution, neighboring cell measurement is started according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, thereby preparing for subsequent cell reselection.

[0170] Optionally, in a possible implementation, the transceiver module 602 is used to receive indication information sent by the access network device, where the indication information is used to instruct the access network device to support the terminal device to start neighboring cell measurement based on the quality of the reference signal corresponding to the frequency resource.

[0171] It can be seen that in the above technical solution, by sending indication information, when the access network device supports the terminal device to start the neighboring cell measurement according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, the terminal device can start the neighboring cell measurement according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, thereby preparing for subsequent cell reselection.

[0172] Optionally, in a possible implementation manner, the transceiver module 602 is further configured to receive a preset time and threshold sent by the access network device.

[0173] It can be seen that the above technical solution realizes sending preset time and threshold to the terminal device, preparing for the subsequent terminal device to start neighboring area measurement, cell selection, and cell reselection.

[0174] See also Figure 7 , Figure 7 This is a schematic diagram of the structure of an access network device provided in an embodiment of the present application. The access network device 700 can be applied to the above Figures 2 to 5 In the method shown, Figure 7 As shown, the access network device 700 includes: a transceiver module 701, wherein:

[0175] The transceiver module 701 is used to send indication information to the terminal device, where the indication information is used to instruct the access network device to support the terminal device to start neighboring cell measurement based on the quality of the reference signal corresponding to the frequency resource carrying the paging message.

[0176] It can be seen that in the above technical solution, by sending indication information, when the access network device supports the terminal device to start the neighboring cell measurement according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, the terminal device can start the neighboring cell measurement according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, thereby preparing for subsequent cell reselection.

[0177] Optionally, in a possible implementation manner, the transceiver module 701 is further configured to send a preset time and threshold to the terminal device.

[0178] It is understood that the transceiver module can be used to send a first system message to the terminal device, the first system message including a preset time and a threshold. The transceiver module can also be used to send a second system message and a third system message to the terminal device, the second system message including a preset time and the third system message including a threshold.

[0179] It can be seen that the above technical solution realizes sending preset time and threshold to the terminal device, preparing for the subsequent terminal device to start neighboring area measurement, cell selection, and cell reselection.

[0180] Figure 8 This is a simplified schematic diagram of the structure of a terminal device provided in an embodiment of the present application. For ease of understanding and illustration, Figure 8 In this article, the terminal device is a mobile phone. Figure 8As shown, the terminal device includes at least one processor, and may also include a radio frequency circuit, an antenna, and input and output devices. The processor can be used to process communication protocols and communication data, and can also be used to control the terminal device, execute software programs, process software program data, etc. The terminal device may also include a memory, which is mainly used to store software programs and data. These programs can be loaded into the memory when the communication device leaves the factory, or loaded into the memory later when needed. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing radio frequency signals. The antenna is mainly used to transmit and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal devices may not have input and output devices.

[0181] When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs the baseband signal to the RF circuit. The RF circuit performs RF processing on the baseband signal and then transmits the RF signal to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal device, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data. For the sake of explanation, Figure 7 Only one memory and processor are shown. In actual terminal device products, one or more processors and one or more memories may exist. Memory may also be referred to as a storage medium or storage device. The memory may be provided independently of the processor or integrated with the processor, and this is not limited in the embodiments of the present application.

[0182] In the embodiment of the present application, the antenna and radio frequency circuit with transceiver functions can be regarded as the receiving unit and sending unit of the terminal device (also collectively referred to as the transceiver unit), and the processor with processing function can be regarded as the processing unit of the terminal device. Figure 8 As shown, the terminal device includes a receiving module 31, a processing module 32, and a sending module 33. The receiving module 31 may also be referred to as a receiver, a receiver, a receiving circuit, etc., and the sending module 33 may also be referred to as a transmitter, a transmitter, a transmitter, a transmitting circuit, etc. The processing module 32 may also be referred to as a processor, a processing board, a processing module, a processing device, etc.

[0183] For example, the processing module 32 is used to execute Figures 2 to 5 The embodiment shown.

[0184] Figure 9It is a simplified structural diagram of an access network device provided in an embodiment of the present application. The access network device includes a radio frequency signal receiving and transceiving and conversion part and a part 42, and the radio frequency signal receiving and transceiving and conversion part further includes a receiving module 41 part and a sending module 43 part (also collectively referred to as a transceiver module). The radio frequency signal receiving and transceiving and conversion part is mainly used for receiving and transceiving radio frequency signals and converting radio frequency signals to baseband signals; part 42 is mainly used for baseband processing, controlling the access network device, etc. The receiving module 41 can also be called a receiver, a receiver, a receiving circuit, etc., and the sending module 43 can also be called a transmitter, a transmitter, a transmitter, a transmitting circuit, etc. Part 42 is usually the control center of the access network device, which can usually be called a processing module, which is used to control the access network device to perform the above-mentioned Figures 2 to 5 For details on the steps performed by the access network device, please refer to the description of the relevant section above.

[0185] Part 42 may include one or more boards, each of which may include one or more processors and one or more memories. The processors are configured to read and execute programs stored in the memories to implement baseband processing functions and control access network equipment. If multiple boards are present, the boards may be interconnected to increase processing power. As an optional implementation, multiple boards may share one or more processors, multiple boards may share one or more memories, or multiple boards may simultaneously share one or more processors.

[0186] For example, the sending module 43 is used to execute Figure 4 The function of the access network device in step 403 in the illustrated embodiment.

[0187] The embodiment of the present application further provides a terminal device / access network device, which is used to perform the above-mentioned cell reselection method. Part or all of the above-mentioned communication can be implemented by hardware or software.

[0188] Optionally, the terminal device / access network device may be a chip or an integrated circuit in specific implementation.

[0189] Optionally, when part or all of the cell reselection method of the above embodiment is implemented through software, the terminal device / access network device includes: at least one processor for executing a program, so that when the program is executed, the terminal device / access network device can implement the cell reselection method provided by the above embodiment. The terminal device / access network device may also include a memory for storing necessary programs. These programs involved can be loaded into the memory when the terminal device leaves the factory, and can also be loaded into the memory when needed later.

[0190] Optionally, the above-mentioned memory may be a physically independent unit or may be integrated with the processor.

[0191] Optionally, when part or all of the cell reselection method in the above embodiment is implemented via software, the terminal device / access network device may include only at least one processor. The memory for storing the program is located outside the terminal device, and the processor is connected to the memory via circuits / wires to read and execute the program stored in the memory.

[0192] Each processor may be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and a NP.

[0193] Optionally, each processor may include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof.

[0194] The memory may include volatile memory, such as random-access memory (RAM); the memory may also include non-volatile memory, such as flash memory, a hard disk drive (HDD) or a solid-state drive (SSD); the memory may also include a combination of the above types of memory.

[0195] An embodiment of the present application also provides a computer-readable storage medium having a computer program stored thereon. When the program is executed by a processor, the terminal device-related process in the cell reselection method provided in the above method embodiment can be implemented.

[0196] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of this application. It should be understood that the above description is only the specific implementation methods of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of this application should be included in the scope of protection of this application.

Claims

1. A cell reselection method, characterized in that: include: If the frequency resource carrying the paging message is different from the primary frequency resource, measuring the quality of the reference signal corresponding to the frequency resource; Initiate neighboring cell measurement based on the quality of the reference signal corresponding to the frequency resource; Cell reselection is performed based on the neighboring cell measurement result.

2. The method according to claim 1, characterized in that The neighboring cell is a neighboring cell of the cell. After the neighboring cell measurement is started, the method further includes: Determining the cell as barred within a preset time; or, Within the preset time, the quality of service corresponding to the cell is determined according to the quality and offset of the reference signal corresponding to the primary frequency resource.

3. The method according to claim 2, characterized in that The cell is a serving cell, and the method further includes: Determining, within the preset time, a quality of service corresponding to the cell according to a quality of a reference signal corresponding to the frequency resource; The service quality corresponding to the cell is determined according to an average value or a weighted average value of the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the primary frequency resource within the preset time.

4. The method according to claim 1, wherein The measuring the quality of the reference signal corresponding to the frequency resource includes: The quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the primary frequency resource are alternately measured.

5. The method according to claim 4, characterized in that The initiating neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource includes: Determine the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the primary frequency resource, whichever has the worst quality; If the quality of the reference signal with the worst quality is lower than a threshold, the neighboring cell measurement is started.

6. The method according to claim 1 or 5, characterized in that The initiating neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource includes: If the quality of the reference signal corresponding to the frequency resource is lower than a threshold, the neighboring cell measurement is started.

7. A terminal device, characterized in that: The terminal device includes a processing module, The processing module is configured to measure the quality of a reference signal corresponding to a frequency resource carrying a paging message if the frequency resource is different from the primary frequency resource; initiate neighboring cell measurement based on the quality of the reference signal corresponding to the frequency resource; and perform cell reselection based on the result of the neighboring cell measurement.

8. The terminal device according to claim 7, characterized in that The neighboring area is a neighboring area of ​​the cell. After the neighboring area measurement is started, the processing module is further used to Determining the cell as barred within a preset time; or, Within the preset time, the quality of service corresponding to the cell is determined according to the quality and offset of the reference signal corresponding to the primary frequency resource.

9. The terminal device according to claim 8, characterized in that The cell is a serving cell, and the processing module is further configured to Determining the quality of service corresponding to the cell according to the quality of the reference signal corresponding to the frequency resource within the preset time; or The quality of service corresponding to the cell is determined within the preset time according to an average value or a weighted average value of the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the primary frequency resource.

10. The terminal device according to claim 7, characterized in that When measuring the quality of the reference signal corresponding to the frequency resource, the processing module is configured to alternately measure the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the primary frequency resource.

11. The terminal device according to claim 9, characterized in that When the neighboring cell measurement is started according to the quality of the reference signal corresponding to the frequency resource, the processing module is used to determine the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the primary frequency resource, the worst quality reference signal; if the quality of the worst quality reference signal is lower than the threshold, the neighboring cell measurement is started.

12. The terminal device according to claim 7 or 10, characterized in that: When the neighboring cell measurement is started according to the quality of the reference signal corresponding to the frequency resource, the processing module is configured to start the neighboring cell measurement if the quality of the reference signal corresponding to the frequency resource is lower than a threshold.

13. A terminal device, characterized in that: It includes a processor, a memory, an input interface and an output interface, the input interface is used to receive information from other communication devices outside the terminal device, the output interface is used to output information to other communication devices outside the terminal device, and the processor calls the computer program stored in the memory to implement the method described in any one of claims 1-6.

14. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed, the method according to any one of claims 1 to 6 is implemented.

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