Cell selection method and device, terminal and base station

Abstract

The invention provides a cell selection method and device, a terminal and a base station, and relates to the technical field of communication. The method is executed by a terminal, and comprises: obtaining indication information sent by a base station, the indication information being used for indicating whether a cell supports a low-power-consumption wake-up signal; and under the condition of cell selection, determining a target cell according to the indication information. According to the scheme of the invention, the selected cell not only can ensure better network service quality, but also can prolong the service time of the terminal, thereby achieving the purpose of saving power for the terminal.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a cell selection method, device, terminal and base station. Background Art

[0002] The current cell selection usually receives the configuration information of the system information block (SIB), radio resource control (RRC) or different system and frequency points based on the new radio (NR), and measures the neighboring cells. The S criterion is used to determine whether the measurement conditions are met. If they are met, the target cell is selected according to the R criterion.

[0003] However, in order to effectively reduce the power consumption of the terminal, the Low Power Wake-Up-Signal (LP-WUS) is introduced as a signal to start and end the terminal to enter the ultra-deep sleep mode. In this mode, the terminal standby power consumption can be greatly reduced compared to the normal standby mode. Therefore, how to select a cell that can both ensure better network service quality and extend the terminal usage time to achieve terminal power saving has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] The purpose of the present invention is to provide a cell selection method, device, terminal and base station, so that the selected cell can not only ensure better network service quality, but also extend the terminal usage time, thereby achieving the purpose of terminal power saving.

[0005] To achieve the above object, an embodiment of the present invention provides a cell selection method, which is executed by a terminal and includes:

[0006] Obtaining indication information sent by the base station, where the indication information is used to indicate whether the cell supports a low power consumption wake-up signal;

[0007] In case of cell selection, a target cell is determined according to the indication information.

[0008] Optionally, the indication information includes at least one of the following:

[0009] First information, where the first information is specific priority information of a cell supporting a low power consumption wake-up signal;

[0010] The second information is capability information of whether the cell supports low power consumption wake-up signals.

[0011] Optionally, determining the target cell according to the indication information includes:

[0012] In a case where the indication information includes the first information, a cell corresponding to the first information is determined as the target cell.

[0013] Optionally, determining the target cell according to the indication information includes:

[0014] In the case where the indication information includes the second information,

[0015] If a neighboring cell is detected and the frequency priority of the neighboring cell is greater than or less than the frequency priority of the serving cell, determining the target cell based on the second information and the frequency priority;

[0016] If a neighboring cell is detected and the frequency priority of the neighboring cell is equal to the frequency priority of the serving cell, the rating information of the serving cell and / or the neighboring cell is adjusted based on a first threshold, and the target cell is determined according to the adjusted rating information, wherein the first threshold is pre-set for the cell to support low-power wake-up signals.

[0017] Optionally, the determining the target cell based on the second information and the frequency priority includes:

[0018] Calculating a reselection priority of the serving cell based on the second information of the serving cell and the frequency priority;

[0019] Calculating a reselection priority of the neighboring cell based on the second information of the neighboring cell and the frequency priority;

[0020] When the reselection priority of the neighboring cell is greater than the reselection priority of the serving cell, taking the neighboring cell as the target cell;

[0021] When the reselection priority of the neighboring cell is lower than the reselection priority of the serving cell, the serving cell is used as the target cell.

[0022] Optionally, the target cell is a cell corresponding to the maximum rating information after adjustment;

[0023] Among them, the adjusted rating information of the service cell is obtained by adding the reference signal receiving power, hysteresis value and the first threshold of the service cell; the adjusted rating information of the neighboring cell is obtained by adding the difference between the reference signal receiving power and quality deviation of the neighboring cell and the first threshold.

[0024] To achieve the above object, an embodiment of the present invention provides a cell selection method, which is performed by a base station and includes:

[0025] Sending indication information to the terminal, where the indication information is used to indicate whether the cell supports the low power consumption wake-up signal.

[0026] Optionally, the sending the indication information to the terminal includes:

[0027] The indication information is sent via system information block SIB or radio resource control RRC signaling.

[0028] Optionally, the indication information includes at least one of the following:

[0029] First information, where the first information is specific priority information of a cell supporting a low power consumption wake-up signal;

[0030] The second information is capability information of whether the cell supports low power consumption wake-up signals.

[0031] To achieve the above object, an embodiment of the present invention provides a cell selection device, including:

[0032] An acquisition module, used to acquire indication information sent by a base station, where the indication information is used to indicate whether the cell supports a low power consumption wake-up signal;

[0033] The first processing module is used to determine a target cell according to the indication information when performing cell selection.

[0034] To achieve the above object, an embodiment of the present invention provides a cell selection device, including:

[0035] The sending module is used to send indication information to the terminal, where the indication information is used to indicate whether the cell supports the low power consumption wake-up signal.

[0036] To achieve the above object, an embodiment of the present invention provides a terminal, including a transceiver and a processor.

[0037] The transceiver is used to: obtain indication information sent by the base station, where the indication information is used to indicate whether the cell supports a low power consumption wake-up signal;

[0038] The processor is used to: determine a target cell according to the indication information when performing cell selection.

[0039] To achieve the above object, an embodiment of the present invention provides a base station, including a transceiver,

[0040] The transceiver is used to send indication information to the terminal, where the indication information is used to indicate whether the cell supports a low power consumption wake-up signal.

[0041] To achieve the above-mentioned purpose, an embodiment of the present invention provides a terminal, including a transceiver, a processor, a memory, and a program or instruction stored in the memory and executable on the processor; when the processor executes the program or instruction, the cell selection method executed by the terminal as described above is implemented.

[0042] To achieve the above-mentioned purpose, an embodiment of the present invention provides a base station, including a transceiver, a processor, a memory, and a program or instruction stored in the memory and executable on the processor; when the processor executes the program or instruction, the cell selection method performed by the base station as described above is implemented.

[0043] To achieve the above-mentioned purpose, an embodiment of the present invention provides a readable storage medium having a program or instruction stored thereon, which, when executed by a processor, implements the steps in the cell selection method performed by the terminal as described above, or implements the steps in the cell selection method performed by the base station as described above.

[0044] The beneficial effects of the above technical solution of the present invention are as follows:

[0045] According to the method of the embodiment of the present invention, the terminal can understand whether each cell supports the low-power wake-up signal by obtaining the indication information sent by the base station, so that when performing cell selection, the target cell is determined according to the indication information, so that subsequent access to the cell can not only ensure better network service quality, but also extend the terminal usage time, thereby achieving the purpose of terminal power saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A flowchart of a cell selection method applied to a terminal according to an embodiment of the present invention;

[0047] Figure 2 is a flow chart of a cell selection method applied to a base station according to an embodiment of the present invention;

[0048] Figure 3 for Figure 1 A schematic diagram of the structure of the corresponding device;

[0049] Figure 4 for Figure 2 A schematic diagram of the structure of the corresponding device;

[0050] Figure 5 is a schematic diagram of the structure of a terminal according to an embodiment of the present invention;

[0051] Figure 6 A schematic diagram of the structure of a terminal according to another embodiment of the present invention;

[0052] Figure 7 It is a schematic diagram of the structure of a base station according to an embodiment of the present invention. DETAILED DESCRIPTION

[0053] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0054] It should be understood that the references to "one embodiment" or "an embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present invention. Therefore, the references to "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0055] In various embodiments of the present invention, it should be understood that the size of the serial numbers of the following processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0056] Additionally, the terms "system" and "network" are often used interchangeably herein.

[0057] In the embodiments provided in the present application, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0058] like Figure 1 As shown, a cell selection method in an embodiment of the present invention is executed by a terminal, including:

[0059] Step 101, obtaining indication information sent by a base station, where the indication information is used to indicate whether a cell supports a low power consumption wake-up signal;

[0060] Step 102: When performing cell selection, determine a target cell according to the indication information.

[0061] Here, the target cell is the target object accessed by the terminal.

[0062] In this way, according to the above steps, the terminal can understand whether each cell supports the low power wake-up signal (LP-WUS) by obtaining the indication information sent by the base station, and then determine the target cell according to the indication information when selecting the cell, so that the subsequent access to the cell can not only guarantee better network service quality, but also extend the terminal usage time, thereby achieving the purpose of terminal power saving.

[0063] In this embodiment, the cell selection may be a cell selection when the terminal has no serving cell, or may be a cell reselection when the terminal accesses a serving cell.

[0064] Optionally, the base station sends the indication information via SIB or RRC signaling.

[0065] As an implementation method, a dedicated information unit (IE) indicating information is provided in the SIB or RRC signaling, and the IE may be referred to as an information element of LP-WUS-r18.

[0066] Optionally, the indication information includes at least one of the following:

[0067] First information, where the first information is specific priority information of a cell supporting a low power consumption wake-up signal;

[0068] The second information is capability information of whether the cell supports low power consumption wake-up signals.

[0069] That is, the first information is configured for a cell supporting a low power consumption wake-up signal, and if the corresponding cell indication information includes the first information, the cell supports LP-WUS. Based on the first information, the terminal can ignore other indicators when performing cell selection.

[0070] Optionally, determining the target cell according to the indication information includes:

[0071] In a case where the indication information includes the first information, a cell corresponding to the first information is determined as the target cell.

[0072] As an implementation method, when the serving cell of the terminal meets the neighboring cell measurement standard, if the serving cell does not support LP-WUS and the neighboring cell supports LP-WUS, the frequency priority of the serving cell and the neighboring cell can be ignored, and the neighboring cell can be directly determined as the target cell and reselected to the target cell.

[0073] As an implementation method, when the service cell of the terminal meets the neighboring cell measurement standard, if the service cell supports LP-WUS and the neighboring cell does not support LP-WUS, the frequency priority of the service cell and the neighboring cell can be ignored, and the service cell can be directly determined as the target cell, and the terminal continues to stay in the service cell.

[0074] Optionally, the indication information includes second information of each cell to indicate whether the corresponding cell supports LP-WUS, for example, LP-WUS-r18=True, indicating that LP-WUS is not supported; LP-WUS-r18=False, indicating that LP-WUS is supported.

[0075] Optionally, the second information may also only indicate that the corresponding cell supports LP-WUS, that is, the indication information includes the second information of one or more cells, and the one or more cells all support LP-WUS. Alternatively, the second information may also only indicate that the corresponding cell does not support LP-WUS, that is, the indication information includes the second information of one or more cells, and the one or more cells do not support LP-WUS.

[0076] Optionally, determining the target cell according to the indication information includes:

[0077] In the case where the indication information includes the second information,

[0078] If a neighboring cell is detected and the frequency priority of the neighboring cell is greater than or less than the frequency priority of the serving cell, determining the target cell based on the second information and the frequency priority;

[0079] If a neighboring cell is detected and the frequency priority of the neighboring cell is equal to the frequency priority of the serving cell, the rating information of the serving cell and / or the neighboring cell is adjusted based on a first threshold, and the target cell is determined according to the rating information, wherein the first threshold is pre-set for the cell to support low-power wake-up signals.

[0080] Among them, frequency priority is set for different frequency bands to assist the terminal to stay in the target frequency band cell.

[0081] In this way, after starting the neighboring cell measurement, a neighboring cell whose frequency priority level is greater than or less than the frequency priority level of the serving cell can be detected, and a neighboring cell whose frequency priority level is equal to the frequency priority level of the serving cell can also be detected. Therefore, according to the above method, if a neighboring cell with a higher (larger) frequency priority than the serving cell is detected, or a neighboring cell with a lower (smaller) frequency priority than the serving cell is detected, the target cell is determined by combining the second information and frequency priority of the serving cell and the neighboring cell; if a neighboring cell with the same frequency priority as the serving cell is detected, the rating information of the serving cell and / or the neighboring cell is adjusted based on the first threshold, and the target cell is determined according to the rating information.

[0082] As an implementation mode, when a neighboring cell with a higher frequency priority is detected, the following situations exist:

[0083] A. Neither the serving cell nor the neighboring cell supports LP-WUS;

[0084] B. Both the serving cell and the neighboring cell support LP-WUS;

[0085] C. The serving cell does not support LP-WUS, but the neighboring cell supports LP-WUS;

[0086] D. The serving cell supports LP-WUS, but the neighboring cell does not support LP-WUS.

[0087] As an implementation manner, when a neighboring cell with the same frequency priority is detected, or when a neighboring cell with a lower frequency priority is detected, the above situations A to D also exist.

[0088] In addition, in this embodiment, whether to start the neighboring cell measurement can be based on the S criterion. Specifically, when the terminal is stationed in the serving cell, the serving cell is periodically measured. If the serving cell satisfies Srelv>0, and Squal>0, and satisfies Srxlev>SintraSearchP, Squal>SIntraSearchQ, the neighboring cell measurement is not started, otherwise the neighboring cell measurement is started.

[0089] Wherein, SIntraSearchP is the level threshold for starting the same-frequency measurement of the RSRP signal, SIntraSearchQ is the level threshold for starting the same-frequency measurement of the RSRQ signal, Srxlev = Qrxlevmeas - Qrxlevmin - Pcompensation, Squal = Qqualmeas - Qqualmin;

[0090] Qrxlevmeas——measured reference signal received power of the cell;

[0091] Qrxlevmin——the minimum reference signal received power required for cell selection;

[0092] Pcompensation = max(UE_TXPWR_MAX_RACH – P_MAX, 0), where UE_TXPWR_MAX_RACH is the maximum uplink transmit power value available to the UE configured in the cell, and P_MAX is the maximum transmit power of the UE;

[0093] Qqualmeas——measured cell signal quality value;

[0094] Qqualmin——Minimum cell signal quality value.

[0095] Srxlev is the RX power level selected by the cell (corresponding to RSRP), and Squal is the power quality selected by the cell (corresponding to RSRQ).

[0096] Of course, if Squal > ThreshX,HighQ and Srxlev > ThreshX,HighP are satisfied, inter-frequency measurement can be started and reselection to a high-frequency priority cell can be performed. ThreshX,HighQ is the cell signal quality threshold when reselecting to a cell with a high frequency priority; ThreshX,HighP is the cell reference signal received power threshold when reselecting to a cell with a high frequency priority.

[0097] If SnotintraSearchP < Srxlev ≤ SIntraSearchP and SnotintraSearchQ < Squal ≤ SIntraSearchQ are satisfied, intra-frequency measurement is started. SnotintraSearchP is the first reference signal received power threshold for starting intra-frequency measurement, SIntraSearchP is the second reference signal received power threshold for starting intra-frequency measurement, SnotintraSearchQ is the first signal quality threshold for starting intra-frequency measurement, and SIntraSearchQ is the second signal quality threshold for starting intra-frequency measurement.

[0098] If Srelv > 0, Squal > 0, and Squal < ThreshX,LowQ or Srxlev < ThreshX,LowP are satisfied, inter-frequency measurement can be started. ThreshX,LowQ is the cell signal quality threshold when reselecting to a cell with a low frequency priority; ThreshX,LowP is the cell reference signal received power threshold when reselecting to a cell with a low frequency priority.

[0099] It should be understood that in this embodiment, when there is a neighboring cell with a higher frequency priority (i.e., the frequency priority of the neighboring cell is greater than the frequency priority of the serving cell), the signal quality of the serving cell and the neighboring cell can be ignored and neighbor cell measurement can be started.

[0100] Optionally, determining the target cell based on the second information and the frequency priority includes:

[0101] Calculating the reselection priority of the serving cell based on the second information and the frequency priority of the serving cell;

[0102] Calculating the reselection priority of the neighboring cell based on the second information and the frequency priority of the neighboring cell;

[0103] When the reselection priority of the neighboring cell is greater than the reselection priority of the serving cell, the neighboring cell is used as the target cell;

[0104] When the reselection priority of the neighboring cell is lower than the reselection priority of the serving cell, the serving cell is used as the target cell.

[0105] As an implementation manner, the higher (larger) the reselection priority of a cell is, the cell is the target cell.

[0106] As an implementation mode, corresponding to whether the cell indicated by the second information supports LP-WUS, the reselection priority of the cell is obtained based on the frequency priority of the cell. For example, if the cell supports LP-WUS, its reselection priority is frequency priority + 2, or frequency priority * (1 + 50%), etc.; if the cell does not support LP-WUS, its reselection priority is equal to the frequency priority. Here, the weight value for adjusting the frequency priority (such as 2 or 50% in the above example) is preset and can be determined according to the purpose of network planning. For example, if it is necessary to give priority to high-frequency cells for the terminal, the weight value is reduced.

[0107] For example, the terminal's current serving cell is the NR 2.6 GHz frequency band, with a frequency priority of 6, and the neighboring cell is the NR 4.9 GHz frequency band, with a priority of 7. If the cell supports LP-WUS, the reselection priority is priority+2.

[0108] In situations A and B, whether LP-WUS is supported has no impact on cell reselection, and cell reselection is determined according to the S criterion and the R criterion;

[0109] In case C, the reselection priority of the serving cell is priority = 6, and the reselection priority of the neighboring cell is 7 + 2 = 9. If the S criterion is met, the cell supporting LP-WUS at 4.9 GHz can be reselected.

[0110] In case D, the reselection priority of the serving cell = 6 + 2 = 8, and the neighboring cell reselection priority is priority = 7, so it does not meet the high priority cell reselection requirement and can still reside in the 2.6 GHz cell supporting LP-WUS.

[0111] In addition, in this embodiment, the R standard side adjusts the ranking information R of the previous serving cell. S = ...

[0112] Among them, Qmeas,s is measured during cell reselection; Qhyst is the hysteresis of the serving cell during cell reselection, which is configured by the background, sent in SIB3, and is related to the cell; Qmeas,n is also measured during cell reselection.

[0113] Since the first threshold is a fixed value set for cells that support low-power wake-up signals, only cells that support LP-WUS will adjust the rating information. That is, adjusting the rating information of the service cell and / or the neighboring cell based on the first threshold includes: adjusting the rating information of the service cell and / or the neighboring cell that supports LP-WUS based on the first threshold. In this way, it is screened whether the neighboring cell has a more obvious service quality improvement than the current service cell. If the service quality of the current service cell is better, but the neighboring cell does not support the LP-WUS function and there is no obvious gain in signal quality, it is not recommended to reselect to a cell that increases the standby power consumption of the terminal. This judgment method aims to enable the terminal to always maintain a balance between service quality and node capabilities.

[0114] Therefore, optionally, in this embodiment, the target cell is the cell corresponding to the maximum rating information after adjustment;

[0115] Among them, the adjusted rating information of the service cell is obtained by adding the reference signal receiving power, hysteresis value and the first threshold of the service cell; the adjusted rating information of the neighboring cell is obtained by adding the difference between the reference signal receiving power and quality deviation of the neighboring cell and the first threshold.

[0116] That is, for neighboring cells detected with the same frequency priority as the serving cell, the weight of the cell supporting LP-WUS can be increased during reselection and sorting to enhance the probability of the terminal staying in the cell supporting LP-WUS.

[0117] Specifically, the ranking information of the serving cell after adjustment is Rs=Qmeas,s+Qhyst+Qlpwus, and the ranking information of the neighboring cell after adjustment is Rn=Qmeas,n-Qoffset+Qlpwus. Qlpwus is the first threshold.

[0118] For example, if the frequency priority of the current serving cell and the neighboring cell of the terminal is the same, the serving cell supports LP-WUS, and the neighboring cell does not support LP-WUS, then only the ranking information of the serving cell is adjusted. If the ranking information of the serving cell after adjustment (Qmeas, s+Qhyst+Qlpwus) is less than the ranking information of the neighboring cell (Qmeas, n-Qoffset), the terminal reselects to the neighboring cell, providing significantly improved signal service quality. Otherwise, the terminal still resides in the original serving cell.

[0119] Of course, if both the serving cell and the neighboring cell support LP-WUS, the positioning information needs to be adjusted. At this time, since the adjusted classification information increases the first threshold, the first threshold has no effect on the cell reselection. Therefore, for the scenario where both the serving cell and the neighboring cell support or do not support LP-WUS, no adjustment is required, and the classification information is calculated directly according to the R criterion.

[0120] Optionally, in this embodiment, when the serving cell does not support LP-WUS, but the neighboring cell supports LP-WUS (such as LP-WUS-r18=True), the S criterion may be ignored and the neighboring cell measurement may be started. At this time, the frequency priority of the serving cell is equal to the frequency priority of the neighboring cell, or the frequency priority of the serving cell is less than the frequency priority of the neighboring cell. The reselection priority of the serving cell is its frequency priority, and the reselection priority of the neighboring cell may be determined by the weight value and the frequency priority of the neighboring cell. If the reselection priority of the neighboring cell is higher and satisfies the S criterion, the target cell is the neighboring cell.

[0121] For example, if the cell supports LP-WUS, the reselection priority = priority + 2, the serving cell and the neighboring cell are both 2.6GHz frequency band cells, and are at the same frequency priority, priority = 6. If the neighboring cell supports LP-WUS at this time, the reselection priority of the neighboring cell is higher than the reselection priority of the serving cell. If the S criterion is met, reselection can be performed to the cell supporting LP-WUS to achieve the purpose of reducing power consumption. For another example, if the serving cell is a 4.9GHz frequency band cell (priority = 7) and the neighboring cell is a 2.6GHz frequency band cell (priority = 6), the reselection priority of the neighboring cell = 6 + 2 = 8. At this time, the reselection priority of the neighboring cell is higher than that of the serving cell. If the S criterion is met, reselection can be performed to the neighboring cell supporting LP-WUS.

[0122] In summary, the method of the embodiment of the present invention effectively solves the problem that a terminal supporting the LP-WUS function cannot realize ultra-deep mode to reduce the power consumption of the terminal when it resides in an ordinary cell. Among them, whether the cell supports LP-WUS is used as one of the indicators to measure the target cell, so that the terminal resides in the best performance cell, which can not only ensure the service quality, but also appropriately reduce the power consumption. Moreover, by flexibly configuring the influence of LP-WUS on the determination of the target cell, network planning can be assisted, so that the terminal can reselect the cell according to different needs: for example, if the network wants the terminal to reside in a cell with high channel service quality, the proportion of LP-WUS can be appropriately reduced, and a neighboring cell that meets the high frequency priority requirements can be selected; if the network wants the terminal to achieve the goal of maximizing power saving, the proportion of LP-WUS can be increased, so that the terminal reselects to a cell that supports LP-WUS to reduce power consumption.

[0123] like Figure 2As shown, a cell selection method in an embodiment of the present invention is performed by a base station and includes:

[0124] Step 201: Send indication information to a terminal, where the indication information is used to indicate whether a cell supports a low power consumption wake-up signal.

[0125] In this way, after the base station sends the indication information to the terminal, the terminal can understand whether each cell supports the low-power wake-up signal by obtaining the indication information, so that when selecting a cell, the target cell can be determined according to the indication information, so that subsequent access to the cell can not only guarantee better network service quality, but also extend the terminal usage time, thereby achieving the purpose of terminal power saving.

[0126] Optionally, the sending the indication information to the terminal includes:

[0127] The indication information is sent via system information block SIB or radio resource control RRC signaling.

[0128] As an implementation method, a dedicated information unit (IE) indicating information is provided in the SIB or RRC signaling, and the IE may be referred to as an information element of LP-WUS-r18.

[0129] Optionally, the indication information includes at least one of the following:

[0130] First information, where the first information is specific priority information of a cell supporting a low power consumption wake-up signal;

[0131] The second information is capability information of whether the cell supports low power consumption wake-up signals.

[0132] As an implementation mode, the first information is configured for a cell supporting a low power consumption wake-up signal, and if the corresponding cell indication information includes the first information, the cell supports LP-WUS. Based on the first information, the terminal may ignore other indicators when performing cell selection.

[0133] As an implementation manner, the second information may also only indicate that the corresponding cell supports LP-WUS, that is, the indication information includes the second information of one or more cells, and the one or more cells all support LP-WUS. Alternatively, the second information may also only indicate that the corresponding cell does not support LP-WUS, that is, the indication information includes the second information of one or more cells, and the one or more cells do not support LP-WUS.

[0134] It should be noted that this method is implemented in conjunction with the above-mentioned method executed by the terminal, and the implementation method of the above-mentioned method embodiment is applicable to this method and can achieve the same technical effect.

[0135] like Figure 3 As shown, a cell selection device according to an embodiment of the present invention includes:

[0136] An acquisition module 310 is used to acquire indication information sent by a base station, where the indication information is used to indicate whether the cell supports a low power consumption wake-up signal;

[0137] The first processing module 320 is configured to determine a target cell according to the indication information when performing cell selection.

[0138] Optionally, the indication information includes at least one of the following:

[0139] First information, where the first information is specific priority information of a cell supporting a low power consumption wake-up signal;

[0140] The second information is capability information of whether the cell supports low power consumption wake-up signals.

[0141] Optionally, the first processing module is further used for:

[0142] In a case where the indication information includes the first information, a cell corresponding to the first information is determined as the target cell.

[0143] Optionally, the first processing module is further used for:

[0144] In the case where the indication information includes the second information,

[0145] If a neighboring cell is detected and the frequency priority of the neighboring cell is greater than or less than the frequency priority of the serving cell, determining the target cell based on the second information and the frequency priority;

[0146] If a neighboring cell is detected and the frequency priority of the neighboring cell is equal to the frequency priority of the serving cell, the rating information of the serving cell and / or the neighboring cell is adjusted based on a first threshold, and the target cell is determined according to the adjusted rating information, wherein the first threshold is pre-set for the cell to support low-power wake-up signals.

[0147] Optionally, the first processing module is further used for:

[0148] Calculating a reselection priority of the serving cell based on the second information of the serving cell and the frequency priority;

[0149] Calculating a reselection priority of the neighboring cell based on the second information of the neighboring cell and the frequency priority;

[0150] When the reselection priority of the neighboring cell is greater than the reselection priority of the serving cell, taking the neighboring cell as the target cell;

[0151] When the reselection priority of the neighboring cell is lower than the reselection priority of the serving cell, the serving cell is used as the target cell.

[0152] Optionally, the target cell is a cell corresponding to the maximum rating information after adjustment;

[0153] Among them, the adjusted rating information of the service cell is obtained by adding the reference signal receiving power, hysteresis value and the first threshold of the service cell; the adjusted rating information of the neighboring cell is obtained by adding the difference between the reference signal receiving power and quality deviation of the neighboring cell and the first threshold.

[0154] The device can obtain the indication information sent by the base station to understand whether each cell supports the low-power wake-up signal, so as to determine the target cell according to the indication information when selecting the cell, so that the subsequent access to the cell can not only ensure better network service quality, but also extend the terminal usage time, thereby achieving the purpose of terminal power saving.

[0155] It should be noted that the device is a device that applies the above-mentioned method executed by the terminal, and the implementation method of the above-mentioned method embodiment is applicable to the device and can also achieve the same technical effect.

[0156] like Figure 4 As shown, a cell selection device according to an embodiment of the present invention includes:

[0157] The sending module 410 is used to send indication information to the terminal, where the indication information is used to indicate whether the cell supports the low power consumption wake-up signal.

[0158] Optionally, the sending module is further used for:

[0159] The indication information is sent via system information block SIB or radio resource control RRC signaling.

[0160] Optionally, the indication information includes at least one of the following:

[0161] First information, where the first information is specific priority information of a cell supporting a low power consumption wake-up signal;

[0162] The second information is capability information of whether the cell supports low power consumption wake-up signals.

[0163] After the device sends the indication information to the terminal, the terminal can obtain the indication information to understand whether each cell supports the low-power wake-up signal, so that when selecting a cell, the target cell can be determined according to the indication information, so that subsequent access to the cell can not only ensure better network service quality, but also extend the terminal usage time, thereby achieving the purpose of terminal power saving.

[0164] It should be noted that the device is a device that applies the above-mentioned method executed by the base station, and the implementation method of the above-mentioned method embodiment is applicable to the device and can also achieve the same technical effect.

[0165] like Figure 5 As shown, a terminal 500 according to an embodiment of the present invention includes a processor 510 and a transceiver 520, wherein:

[0166] The transceiver is used to obtain indication information sent by the base station, where the indication information is used to indicate whether the cell supports a low power consumption wake-up signal;

[0167] The processor is used to determine the target cell according to the indication information when performing cell selection.

[0168] Optionally, the indication information includes at least one of the following:

[0169] First information, where the first information is specific priority information of a cell supporting a low power consumption wake-up signal;

[0170] The second information is capability information of whether the cell supports low power consumption wake-up signals.

[0171] Optionally, the processor is further configured to:

[0172] In a case where the indication information includes the first information, a cell corresponding to the first information is determined as the target cell.

[0173] Optionally, the processor is further configured to:

[0174] In the case where the indication information includes the second information,

[0175] If a neighboring cell is detected and the frequency priority of the neighboring cell is greater than or less than the frequency priority of the serving cell, determining the target cell based on the second information and the frequency priority;

[0176] If a neighboring cell is detected and the frequency priority of the neighboring cell is equal to the frequency priority of the serving cell, the rating information of the serving cell and / or the neighboring cell is adjusted based on a first threshold, and the target cell is determined according to the adjusted rating information, wherein the first threshold is pre-set for the cell to support low-power wake-up signals.

[0177] Optionally, the processor is further configured to:

[0178] Calculating a reselection priority of the serving cell based on the second information of the serving cell and the frequency priority;

[0179] Calculating a reselection priority of the neighboring cell based on the second information of the neighboring cell and the frequency priority;

[0180] When the reselection priority of the neighboring cell is greater than the reselection priority of the serving cell, taking the neighboring cell as the target cell;

[0181] When the reselection priority of the neighboring cell is lower than the reselection priority of the serving cell, the serving cell is used as the target cell.

[0182] Optionally, the target cell is a cell corresponding to the maximum rating information after adjustment;

[0183] Among them, the adjusted rating information of the service cell is obtained by adding the reference signal receiving power, hysteresis value and the first threshold of the service cell; the adjusted rating information of the neighboring cell is obtained by adding the difference between the reference signal receiving power and quality deviation of the neighboring cell and the first threshold.

[0184] A terminal according to another embodiment of the present invention, such as Figure 6 As shown, it includes a transceiver 610, a processor 600, a memory 620, and a program or instruction stored in the memory 620 and executable on the processor 600; when the processor 600 executes the program or instruction, the cell selection method applied to the terminal is implemented.

[0185] The transceiver 610 is used to receive and send data under the control of the processor 600 .

[0186] Among them, Figure 6 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 600 and various circuits of memory represented by memory 620 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 610 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. For different user devices, the user interface 630 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0187] The processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 600 when performing operations.

[0188] A base station according to an embodiment of the present invention includes a transceiver.

[0189] The transceiver is used to send indication information to the terminal, where the indication information is used to indicate whether the cell supports a low power consumption wake-up signal.

[0190] Optionally, the transceiver is further used for:

[0191] The indication information is sent via system information block SIB or radio resource control RRC signaling.

[0192] Optionally, the indication information includes at least one of the following:

[0193] First information, where the first information is specific priority information of a cell supporting a low power consumption wake-up signal;

[0194] The second information is capability information of whether the cell supports low power consumption wake-up signals.

[0195] A base station according to another embodiment of the present invention, Figure 7 As shown, it includes a transceiver 710, a processor 700, a memory 720, and a program or instruction stored in the memory 720 and executable on the processor 700; when the processor 700 executes the program or instruction, the above-mentioned cell selection method applied to the base station is implemented.

[0196] The transceiver 710 is used to receive and send data under the control of the processor 700.

[0197] Among them, Figure 7 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 700 and memory represented by memory 720. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 710 may be a plurality of components, i.e., including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 700 when performing operations.

[0198] A readable storage medium according to an embodiment of the present invention stores a program or instruction thereon. When the program or instruction is executed by a processor, the steps in the cell selection method performed by the terminal as described above are implemented, or the steps in the cell selection method performed by the base station as described above are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0199] The processor is a processor in the terminal or base station described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0200] It should be further explained that the terminals described in this specification include but are not limited to smart phones, tablet computers, etc., and many of the functional components described are called modules in order to more particularly emphasize the independence of their implementation methods.

[0201] In the embodiment of the present invention, module can be implemented with software so that it can be executed by various types of processors. For example, an executable code module of an identification can include one or more physical or logical blocks of computer instructions, for example, it can be constructed as an object, process or function. Nevertheless, the executable code of the identified module does not need to be physically located together, but can include different instructions stored in different positions, and when these instructions are logically combined together, it constitutes a module and realizes the specified purpose of the module.

[0202] In fact, executable code module can be a single instruction or many instructions, and can even be distributed on a plurality of different code segments, distributed among different programs, and distributed across a plurality of memory devices. Similarly, operating data can be identified in the module, and can be implemented and organized in the data structure of any appropriate type according to any appropriate form. The operating data can be collected as a single data set, or can be distributed in different locations (including on different storage devices), and can only be present on a system or network as an electronic signal at least in part.

[0203] When a module can be implemented by software, considering the level of existing hardware technology, a person skilled in the art can build a corresponding hardware circuit to implement the corresponding function of the module that can be implemented by software without considering the cost. The hardware circuit includes a conventional very large scale integration (VLSI) circuit or gate array and existing semiconductors such as logic chips, transistors, or other discrete components. The module can also be implemented by a programmable hardware device, such as a field programmable gate array, a programmable array logic, a programmable logic device, etc.

[0204] The above exemplary embodiments are described with reference to the accompanying drawings, and many different forms and embodiments are feasible without departing from the spirit and teachings of the present invention. Therefore, the present invention should not be constructed as a limitation of the exemplary embodiments proposed herein. More specifically, these exemplary embodiments are provided so that the present invention will be perfect and complete, and the scope of the present invention will be conveyed to those who are familiar with the technology. In these figures, the component sizes and relative sizes may be exaggerated for clarity. The terms used here are only based on the purpose of describing specific exemplary embodiments and are not intended to be limiting. As used herein, unless the text clearly indicates otherwise, the singular forms "one", "an" and "the" are intended to include these multiple forms. It will be further understood that the terms "including" and / or "comprising" when used in this specification indicate the presence of the features, integers, steps, operations, components and / or components, but do not exclude the presence or increase of one or more other features, integers, steps, operations, components, components and / or their groups. Unless otherwise indicated, when stated, a range of values ​​includes the upper and lower limits of that range and any subranges therebetween.

[0205] 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 the scope of protection of the present invention.

Claims

1. A cell selection method, characterized in that: Executed by the terminal, including: Obtaining indication information sent by the base station, where the indication information is used to indicate whether the cell supports a low power consumption wake-up signal; In case of cell selection, a target cell is determined according to the indication information.

2. The method according to claim 1, characterized in that The indication information includes at least one of the following: First information, where the first information is specific priority information of a cell supporting a low power consumption wake-up signal; The second information is capability information of whether the cell supports low power consumption wake-up signals.

3. The method according to claim 2, characterized in that The determining the target cell according to the indication information includes: In a case where the indication information includes the first information, a cell corresponding to the first information is determined as the target cell.

4. The method according to claim 2, characterized in that: The determining the target cell according to the indication information includes: In the case where the indication information includes the second information, If a neighboring cell is detected and the frequency priority of the neighboring cell is greater than or less than the frequency priority of the serving cell, determining the target cell based on the second information and the frequency priority; If a neighboring cell is detected and the frequency priority of the neighboring cell is equal to the frequency priority of the serving cell, the rating information of the serving cell and / or the neighboring cell is adjusted based on a first threshold, and the target cell is determined according to the adjusted rating information, wherein the first threshold is pre-set for the cell to support low-power wake-up signals.

5. The method according to claim 4, characterized in that The determining the target cell based on the second information and the frequency priority includes: Calculating a reselection priority of the serving cell based on the second information of the serving cell and the frequency priority; Calculating a reselection priority of the neighboring cell based on the second information of the neighboring cell and the frequency priority; When the reselection priority of the neighboring cell is greater than the reselection priority of the serving cell, taking the neighboring cell as the target cell; When the reselection priority of the neighboring cell is lower than the reselection priority of the serving cell, the serving cell is used as the target cell.

6. The method according to claim 4, characterized in that The target cell is the cell corresponding to the maximum rating information after adjustment; Among them, the adjusted rating information of the service cell is obtained by adding the reference signal receiving power, hysteresis value and the first threshold of the service cell; the adjusted rating information of the neighboring cell is obtained by adding the difference between the reference signal receiving power and quality deviation of the neighboring cell and the first threshold.

7. A cell selection method, characterized in that: Executed by the base station, including: Sending indication information to the terminal, where the indication information is used to indicate whether the cell supports the low power consumption wake-up signal.

8. The method according to claim 7, characterized in that The sending the instruction information to the terminal includes: The indication information is sent via system information block SIB or radio resource control RRC signaling.

9. The method according to claim 7, characterized in that: The indication information includes at least one of the following: First information, where the first information is specific priority information of a cell supporting a low power consumption wake-up signal; The second information is capability information of whether the cell supports low power consumption wake-up signals.

10. A cell selection device, characterized in that: include: An acquisition module, used to acquire indication information sent by a base station, where the indication information is used to indicate whether the cell supports a low power consumption wake-up signal; The first processing module is used to determine a target cell according to the indication information when performing cell selection.

11. A cell selection device, characterized in that: include: The sending module is used to send indication information to the terminal, where the indication information is used to indicate whether the cell supports the low power consumption wake-up signal.

12. A terminal, characterized in that: Including transceivers and processors, The transceiver is used to: obtain indication information sent by the base station, where the indication information is used to indicate whether the cell supports a low power consumption wake-up signal; The processor is used to: determine a target cell according to the indication information when performing cell selection.

13. A base station, characterized in that: Including transceiver, The transceiver is used to send indication information to the terminal, where the indication information is used to indicate whether the cell supports a low power consumption wake-up signal.

14. A terminal, comprising: A transceiver, a processor, a memory, and a program or instruction stored in the memory and executable on the processor; wherein the processor implements the cell selection method as described in any one of claims 1 to 6 when executing the program or instruction.

15. A base station, comprising: A transceiver, a processor, a memory, and a program or instruction stored in the memory and executable on the processor; characterized in that when the processor executes the program or instruction, the cell selection method as described in any one of claims 7 to 9 is implemented.

16. A readable storage medium having a program or instruction stored thereon, characterized in that: When the program or instruction is executed by the processor, the steps in the cell selection method according to any one of claims 1 to 6 are implemented, or the steps in the cell selection method according to any one of claims 7 to 9 are implemented.

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