Cell switching method, base station and storage medium

Abstract

The embodiment of the invention provides a cell switching method, a base station and a storage medium, and belongs to the field of communication. The method comprises: acquiring UE information of a user equipment (UE) of a to-be-switched serving cell, and generating a carrier aggregation request and determining a target base station according to the UE information, the target base station being a base station where a to-be-switched main carrier is located; sending the carrier aggregation request to the target base station, and acquiring cell combination information returned by the target base station according to the carrier aggregation request; and switching the serving cell of the UE according to the cell combination information. According to the technical scheme of the invention, the process of determining the cell combination information is dispersed to each target base station, so that the processing process is changed from one base station processing to parallel processing of a plurality of base stations, the efficiency of determining the cell combination information is improved, and the interaction of messages among the base stations is reduced; and the efficiency and accuracy of switching the high-quality serving cell by the user equipment are greatly improved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of communication technology, and in particular to a cell switching method, a base station and a storage medium. Background Art

[0002] The application of the fifth generation mobile communication technology (5G) is becoming increasingly mature, providing basic security services, larger bandwidth, lower latency and higher quality services for terminals. In addition, in multi-band, small bandwidth, multi-user and large-capacity scenarios, carrier aggregation (CA) technology has also been introduced. CA is a technology that increases transmission bandwidth to meet the requirements of single-user peak rate and system capacity improvement. It is necessary to add secondary cells based on the measurement results generated by measuring the signal strength of the cells around the user equipment (UE), and jointly serve the same user equipment with the primary cell.

[0003] At present, there are the following difficulties in selecting the optimal carrier aggregation mode for user equipment: when obtaining the cell combination of the optimal aggregation mode, it is necessary to obtain the configuration of the neighboring cells and neighboring cells on the base station side where the user equipment is located, including the static configuration and dynamic configuration of the neighboring cells of the neighboring cells of the neighboring cells. The amount of data relied on is huge, and the message content increases exponentially compared to ordinary scenarios. In addition, as long as the static configuration or dynamic configuration of the neighboring cells or the neighboring cells of the neighboring cells of the neighboring cells changes, the interaction of messages between base stations will occur, resulting in frequent message interactions between base stations, which is prone to signaling storms. The base station side where the user equipment is located needs to calculate all possible cell combinations of the aggregation mode of the current location of the user equipment and the maximum rate that can be achieved. In the case of a large number of configured neighboring cells, it is necessary not only to calculate the cell combination of the main carrier cell as the intra-station neighboring cell, but also to calculate the cell combination of the main carrier cell as the inter-station neighboring cell, which results in large calculation and delay, resulting in poor user experience. Summary of the invention

[0004] The embodiment of the present invention provides a cell switching method, a base station and a storage medium, aiming to switch a user equipment to a high-quality serving cell.

[0005] In a first aspect, an embodiment of the present invention provides a cell switching method, which is applied to a source base station, and the method includes:

[0006] Acquire UE information of a user equipment UE of a serving cell to be switched, generate a carrier aggregation request and determine a target base station according to the UE information, where the target base station is a base station where a main carrier to be switched is located;

[0007] Sending the carrier aggregation request to the target base station, and obtaining cell combination information returned by the target base station according to the carrier aggregation request;

[0008] The serving cell of the UE is switched according to the cell combination information.

[0009] In a second aspect, an embodiment of the present invention provides a cell switching method, which is applied to a target base station, and the method includes:

[0010] Obtaining neighboring cell configuration information of the target base station and a carrier aggregation request sent by a source base station;

[0011] Generate cell combination information according to the carrier aggregation request and the neighboring cell configuration information, where the cell combination information includes multiple cell identity information and a transmission rate of the cell combination;

[0012] The cell combination information is sent to the source base station, so that the source base station switches the serving cell of the UE according to the cell combination information.

[0013] In a third aspect, an embodiment of the present invention further provides a base station, comprising a processor, a memory, a computer program stored in the memory and executable by the processor, and a data bus for realizing connection and communication between the processor and the memory, wherein when the computer program is executed by the processor, the steps of any one of the cell switching methods provided in the specification of the present invention are implemented.

[0014] In a fourth aspect, an embodiment of the present invention further provides a storage medium for computer-readable storage, characterized in that the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of any cell switching method provided in the specification of the present invention.

[0015] The embodiment of the present invention provides a cell switching method, a base station and a storage medium. The embodiment of the present invention obtains the UE information of the user equipment UE of the service cell to be switched, generates a carrier aggregation request and determines the target base station according to the UE information, and the target base station is the base station where the main carrier to be switched is located; then the carrier aggregation request is sent to the target base station, and the target base station can accurately calculate the cell combination information that meets the requirements according to the carrier aggregation request, and obtain the cell combination information returned by the target base station; then the service cell of the UE is switched according to the cell combination information, so that the UE is in the optimal aggregation mode cell combination. In the present invention, the process of determining the cell combination information is dispersed to each target base station, so that the processing process is changed from one base station processing to multiple base stations processing in parallel, which improves the efficiency of determining the cell combination information and reduces the interaction of messages between base stations, greatly improving the efficiency and accuracy of user equipment switching to high-quality service cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of a flow chart of a cell switching method provided by an embodiment of the present invention;

[0017] Figure 2 A schematic diagram of a scenario of a cell switching method provided by an embodiment of the present invention;

[0018] Figure 3 A schematic diagram of another scenario of the cell switching method provided by an embodiment of the present invention;

[0019] Figure 4 A schematic diagram of another scenario of the cell switching method provided by an embodiment of the present invention;

[0020] Figure 5 A schematic diagram of another scenario of the cell switching method provided by an embodiment of the present invention;

[0021] Figure 6 A schematic diagram of a flow chart of another cell switching method provided by an embodiment of the present invention;

[0022] Figure 7 A schematic block diagram of the structure of a base station provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] The flowcharts shown in the accompanying drawings are only examples and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may be decomposed, combined or partially merged, so the actual execution order may change according to actual conditions.

[0025] It should be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0026] The embodiment of the present invention provides a cell switching method, a base station and a storage medium. The cell switching method can be applied to a base station, which can be a macro base station, a micro base station, a pico base station, a femto base station, etc.

[0027] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0028] Please refer to Figure 1 , Figure 1 A schematic flow chart of a cell switching method provided in an embodiment of the present invention.

[0029] like Figure 1 As shown, the cell switching method includes steps S101 to S103.

[0030] Step S101: obtaining UE information of a user equipment UE of a serving cell to be switched, generating a carrier aggregation request and determining a target base station according to the UE information, wherein the target base station is a base station where a primary carrier to be switched is located.

[0031] Among them, the user equipment (UE) is a device that supports carrier aggregation, and the UE includes but is not limited to mobile phones, desktop computers, routers, laptops, smart wearable devices, personal assistants and other devices. UE information includes UE capability information, mobility restriction list and cell coverage information. The UE capability information is the UE's wireless access-related capability information and core network-related capability information. For example, the UE capability information includes NR capability information, EvolvedUMTS Terrestrial Radio Access Network (E-UTRAN) capability information and multi-ratedual connectivity (MRDC) capability information. The mobility restriction list is UE access restriction information and mobility restriction information, etc. The cell coverage information is the cell information of the cell that the UE can access.

[0032] In one embodiment, when the UE information of the UE to be switched to the service cell is obtained, a carrier aggregation request is generated according to the UE information and a target base station is determined. The target base station is the base station where the main carrier that the UE can use is located. The target base station can determine the carrier aggregation cell combination and the transmission rate of each cell combination according to the carrier aggregation request.

[0033] It should be noted that the UE of the service cell to be switched can be set according to actual conditions, and the embodiment of the present invention does not make specific limitations on this. For example, when the signal carrier level of the UE is lower than the preset threshold level, the UE is determined as the UE of the service cell to be switched; when the distance between the UE and the base station is greater than or equal to the preset distance, the UE is determined as the UE of the service cell to be switched, wherein the preset threshold level and the preset distance can be set according to actual conditions, and the embodiment of the present invention does not make specific limitations on this.

[0034] In one embodiment, the target base station is determined according to the UE capability information and the cell coverage information; and a carrier aggregation request is generated according to the UE capability information, the mobility restriction list and the cell coverage information. The UE capability information includes frequency combination information, the frequency combination information includes at least two cells, and the carrier aggregation request is used to indicate the target base station to determine the indication information of the cell combination information. The target base station can determine the carrier aggregation cell combination and the transmission rate of each cell combination according to the carrier aggregation request.

[0035] In one embodiment, at least one frequency combination information for characterizing the UE for performing carrier aggregation is determined according to the UE capability information, and the frequency combination information includes at least two cells; at least one target base station is determined according to the frequency combination information and the cell coverage information. The frequency combination information for performing carrier aggregation can be accurately obtained according to the UE capability information, and the target base station can be accurately obtained according to the frequency combination information and the cell coverage information.

[0036] In one embodiment, according to the frequency combination information and the cell coverage information, the method of determining at least one target base station can be: taking the cell existing in both the frequency combination information and the cell coverage information as the main carrier cell to be switched; and determining the base station where the main carrier cell to be switched is located as the target base station. According to the frequency combination information and the cell coverage information, the main carrier cell to be switched can be accurately determined, and the base station where the main carrier cell to be switched is located is determined as the target base station, which greatly improves the accuracy and efficiency of determining the target base station.

[0037] Exemplarily, based on the UE capability information, it is determined that the frequency combination information used to characterize the UE for carrier aggregation includes frequency combination information 1, frequency combination information 2 and frequency combination information 3; wherein, frequency combination information 1 includes cell 1, cell 2 and cell 3, frequency combination information 2 includes cell 4 and cell 5, and frequency combination information 3 includes cell 6 and cell 7; the cell coverage information includes cell 2, and the cell in which both the frequency combination information and the cell coverage information exist is cell 2, then cell 2 is the main carrier cell to be switched, and the base station where cell 2 is located is determined as the target base station.

[0038] Exemplarily, based on the UE capability information, the frequency combination information used to characterize the UE for carrier aggregation is determined to include frequency combination information 4, frequency combination information 5, frequency combination information 6 and frequency combination information 7; wherein, frequency combination information 4 includes cell 8 and cell 9, frequency combination information 6 includes cell 10, cell 11 and cell 12, frequency combination information 7 includes cell 13, cell 14 and cell 15, cell coverage information includes cell 8, cell 15 and cell 18, the cells where both the frequency combination information and the cell coverage information exist are cell 8 and cell 15, the base station where cell 8 is located is determined as target base station 1, and the base station where cell 15 is located is determined as target base station 2.

[0039] In one embodiment, the aggregation mode of the serving cell is obtained according to the aggregation mode supported in the UE capability information, and the serving public land mobile network (PLMN) information of the to-be-switched primary carrier cell where the UE is located is obtained; the identity information of the to-be-switched primary carrier cell is obtained, and a carrier aggregation request is generated according to the UE capability information, the mobility restriction list, the cell coverage information, the identity information of the to-be-switched primary carrier cell, the serving PLMN information and the aggregation mode. By integrating the UE capability information, the mobility restriction list, the cell coverage information, the identity information of the to-be-switched primary carrier cell, the serving PLMN information and the aggregation mode, the carrier aggregation request can be accurately obtained.

[0040] It should be noted that the aggregation mode includes at least one of New Radio Carrier Aggregation (NRCA) and New Radio-New Radio Dual Connection Carrier Aggregation NRDC, or at least one of Long Term Evolution Carrier Aggregation (LTECA) and Long Term Evolution-New Radio Carrier Aggregation ENDC.

[0041] Step S102: Send the carrier aggregation request to the target base station, and obtain cell combination information returned by the target base station according to the carrier aggregation request.

[0042] The cell combination information includes at least one group of service cell combinations and the transmission rate of each service cell combination. When the cells in the service cell combination are high-frequency cells, the transmission rate corresponding to the service cell combination is empty.

[0043] In one embodiment, after obtaining the carrier aggregation request and the target base station, the carrier request is sent to each target base station, and each target base station determines the cell combination information according to the carrier aggregation request, and returns the cell combination information to the source base station, so that the source base station switches the service cell of the UE according to the cell combination information. By sending the carrier request to each target base station, the process of determining the cell combination information is dispersed to each target base station, so that the processing process is changed from one base station to multiple base stations in parallel, which improves the efficiency of determining the cell combination information and reduces the interaction of messages between base stations, greatly improving the efficiency and accuracy of user equipment switching to high-quality service cells.

[0044] In one embodiment, the neighboring cell configuration information of the target base station and the carrier aggregation request sent by the source base station are obtained; according to the carrier aggregation request and the neighboring cell configuration information, the cell combination information is generated, and the cell combination information includes multiple cell identity information and the transmission rate of the cell combination. The cell combination information is determined by the target base station, which avoids the process of the source base station and the target base station interacting to obtain the neighboring cell configuration information of the target base station, and reduces the process of the source base station needing to determine the cell combination information, so that the processing process is changed from one base station to multiple base stations in parallel, which greatly improves the efficiency and accuracy of determining the cell combination information, and thus improves the efficiency and accuracy of the user equipment switching to a high-quality service cell.

[0045] In one embodiment, the target base station parses the carrier request, generates UE capability information, a mobility restriction list, cell coverage information, identity information of the main carrier cell to be switched, service PLMN information and aggregation mode, determines the cell identity information of at least one main carrier cell and the cell identity information of at least one auxiliary carrier cell for carrier aggregation according to the neighboring cell configuration information, UE capability information, mobility restriction list, cell coverage information, identity information of the main carrier cell to be switched, service PLMN information and aggregation mode, integrates the cell identity information of each main carrier cell and the cell identity information of the auxiliary carrier cell to obtain a cell combination, calculates the transmission rate of the aggregated carrier in the cell combination, integrates the combined cell and the transmission data, and generates the cell combination information.

[0046] It should be noted that when the cell combination includes high-frequency cells, the transmission rate of the aggregated carrier in the cell combination may not be calculated, and the transmission rate in the cell combination information may be set to empty. Not calculating the transmission rate of the aggregated carrier when the cell combination includes high-frequency cells can improve the efficiency of determining the cell combination information.

[0047] In one embodiment, after each target base station generates cell combination information, the cell combination information sent by each target base station is received to obtain at least one cell combination information. By directly obtaining the cell combination information returned by each target base station, the process of interacting with the target base station to obtain the neighboring cell configuration information of the target base station can be avoided, and the process of the source base station needing to determine the cell combination information is reduced, so that the processing of one source base station is changed to parallel processing of multiple target base stations, which greatly improves the efficiency and accuracy of determining the cell combination information.

[0048] Step S103: Switch the serving cell of the UE according to the cell combination information.

[0049] In one embodiment, there is only one serving cell combination in the cell combination information, and the serving cell combination is determined as the target cell combination; the serving cell of the UE is switched to the cell included in the target cell combination. There is only one serving cell combination in the cell combination information, and the serving cell of the UE is directly switched to the cell included in the cell combination, which greatly improves the efficiency and accuracy of the UE serving cell switching.

[0050] In one embodiment, there are multiple groups of service cell combinations in the cell combination information, and the service cell combination with the highest transmission rate is determined as the target cell combination; the UE's service cell is switched to the cell included in the target cell combination, so that the UE switches to the optimal carrier aggregation service cell, greatly improving the UE's transmission rate.

[0051] In one embodiment, there are multiple groups of service cell combinations in the cell combination information, and there are high-frequency cells in the service cell combination, and the service cell combination with the high-frequency cells is determined as the target cell combination; the service cell of the UE is switched to the cell included in the target cell combination, so that the UE switches to the optimal carrier aggregation service cell, which greatly improves the transmission rate of the UE.

[0052] In one embodiment, the method of switching the service cell of the UE to the cell included in the target cell combination may be: switching the service cell of the UE to the primary carrier cell in the target cell combination, and adding the secondary carrier cell in the target cell combination as the service cell of the UE to complete the switching of the service cell of the UE. By switching the primary carrier cell and adding the secondary carrier cell, the service cell of the UE can be accurately switched.

[0053] For example, Figure 2As shown, in the NRCA networking environment, when the aggregation mode is at least one of NRCA and NRDC, the source NR base station 21 obtains the UE information of the user equipment UE of the service cell to be switched, generates a carrier aggregation request 201 according to the UE information, and determines the target base station, the target base station includes a target NR base station A22, a target NR base station B23 and a target NR base station C24, the source NR base station 21 sends the carrier aggregation request 201 to the target NR base station A22, the target NR base station B23 and the target NR base station C24 respectively, and the target NR base station A generates the cell combination information a according to the carrier aggregation request 201 202, and sends the cell combination information a to the source NR base station 21; the target NR base station B generates the cell combination information b203 according to the carrier aggregation request 201, and sends the cell combination information b to the source NR base station 21; the target NR base station C24 generates the cell combination information c204 according to the carrier aggregation request 201, and sends the cell combination information c to the source NR base station 21; the source NR base station 21 receives the cell combination information a, cell combination information b and cell combination information c sent by each target base station, 205 and switches the service cell of the UE according to the cell combination information a, cell combination information b and cell combination information c.

[0054] For example, Figure 3 As shown, in the NRCA and LTE joint networking environment, when the aggregation mode is at least one of NRCA and NRDC, the access base station is the source LTE base station 31, and when it is found that there is an NRCA cell combination, the source LTE base station 31 obtains the UE information of the user equipment UE of the service cell to be switched, generates a carrier aggregation request 301 according to the UE information, and determines the target base station, the target base station includes the target NR base station D32, the target NR base station E33 and the target NR base station F34, the source LTE base station 31 sends the carrier aggregation request 301 to the target NR base station D32, the target NR base station E33 and the target NR base station F34 respectively, and the target NR base station D32 generates a carrier aggregation request 301 according to the UE information. The carrier aggregation request 301 generates cell combination information d302, and sends the cell combination information d to the source LTE base station 31; the target NR base station E33 generates cell combination information e303 according to the carrier aggregation request 301, and sends the cell combination information e to the source LTE base station 31; the target NR base station F34 generates cell combination information f304 according to the carrier aggregation request 301, and sends the cell combination information f to the source LTE base station 31; the source LTE base station 31 receives the cell combination information d, cell combination information e and cell combination information f sent by each target base station, and switches the service cell of the UE according to the cell combination information d, cell combination information f and cell combination information f305.

[0055] For example, Figure 4As shown, in an LTECA networking environment, when the aggregation mode is LTECA, the access base station is a source LTE base station 41. When it is found that there is an LTECA cell combination, the source LTE base station 41 obtains the UE information of the user equipment UE of the service cell to be switched, generates a carrier aggregation request 401 according to the UE information, and determines the target base station, the target base station includes a target LTE base station G42, a target LTE base station H43 and a target LTE base station I44, the source LTE base station 41 sends the carrier aggregation request 401 to the target LTE base station G42, the target LTE base station H43 and the target LTE base station I44 respectively, and the target LTE base station G42 generates a carrier aggregation request 401 according to the carrier aggregation request Request 401 generates cell combination information g402, and sends the cell combination information g to the source LTE base station 41; the target LTE base station H43 generates cell combination information h403 according to the carrier aggregation request 401, and sends the cell combination information h to the source LTE base station 41; the target LTE base station I44 generates cell combination information i404 according to the carrier aggregation request 401, and sends the cell combination information i to the source LTE base station 41; the source LTE base station 41 receives the cell combination information g, cell combination information h and cell combination information i sent by each target base station, and switches the service cell of the UE according to the cell combination information g, cell combination information h and cell combination information i.

[0056] For example, Figure 5 As shown, in an ENDC and NR joint networking environment, when the aggregation mode is at least one of LTECA and ENDC, the access base station is a source NR base station 51, and when an ENDC cell combination is found, the source NR base station 51 obtains UE information of a user equipment UE of a service cell to be switched, generates a carrier aggregation request 501 according to the UE information, and determines a target base station, the target base stations include a target LTE base station J52, a target LTE base station K53, and a target LTE base station M54, the source NR base station 51 sends the carrier aggregation request 501 to the target LTE base station J52, the target LTE base station K53, and the target LTE base station M54, respectively. Generate cell combination information j502 according to the carrier aggregation request 501, and send the cell combination information j to the source NR base station 51; the target LTE base station K53 generates cell combination information k403 according to the carrier aggregation request 501, and sends the cell combination information k to the source NR base station 51; the target LTE base station M54 generates cell combination information m504 according to the carrier aggregation request 501, and sends the cell combination information m to the source NR base station 51; the source NR base station 51 receives the cell combination information j, cell combination information k and cell combination information m sent by each target base station, and switches the service cell of the UE according to the cell combination information j, cell combination information k and cell combination information m.

[0057] The cell switching method in the above embodiment obtains the UE information of the user equipment UE of the service cell to be switched, generates a carrier aggregation request based on the UE information, and determines the target base station, the target base station is the base station where the main carrier to be switched is located; then the carrier aggregation request is sent to the target base station, the target base station can accurately calculate the cell combination information that meets the requirements according to the carrier aggregation request, and obtain the cell combination information returned by the target base station; then the service cell of the UE is switched according to the cell combination information, so that the UE is in the optimal aggregation mode cell combination. In the present invention, the process of determining the cell combination information is dispersed to each target base station, so that the processing process is changed from one base station processing to multiple base stations processing in parallel, which improves the efficiency of determining the cell combination information and reduces the interaction of messages between base stations, greatly improving the efficiency and accuracy of user equipment switching to high-quality service cells.

[0058] Please refer to Figure 6 , Figure 6 A schematic flow chart of another cell switching method provided by an embodiment of the present invention.

[0059] like Figure 6 As shown, the cell switching method includes steps S601 to S603.

[0060] Step S601: Obtain neighboring cell configuration information of the target base station and a carrier aggregation request sent by a source base station.

[0061] In one embodiment, the source base station obtains UE information of a user equipment UE of a service cell to be switched, and determines at least one frequency combination information for characterizing the UE for carrier aggregation according to the UE capability information, wherein the frequency combination information includes at least two cells; the cell existing in both the frequency combination information and the cell coverage information is used as the main carrier cell to be switched; and the base station where the main carrier cell to be switched is located is determined as the target base station. The aggregation mode of the service cell is obtained according to the UE capability information, and the service PLMN information of the main carrier cell to be switched where the UE is located in the main carrier to be switched is obtained; the identity information of the main carrier cell to be switched is obtained, and a carrier aggregation request is generated according to the UE capability information, the mobility restriction list, the cell coverage information, the identity information of the main carrier cell to be switched, the service PLMN information and the aggregation mode, and the carrier aggregation request is sent to the target base station so that the target base station obtains the carrier aggregation request and obtains the neighboring cell configuration information of the target base station.

[0062] Step S602: Generate cell combination information according to the carrier aggregation request and neighboring cell configuration information, where the cell combination information includes multiple cell identity information and a transmission rate of the cell combination.

[0063] In one embodiment, the target base station parses the carrier request, generates UE capability information, mobility restriction list, cell coverage information, identity information of the main carrier cell to be switched, service PLMN information and aggregation mode, determines the cell identity information of at least one main carrier cell and the cell identity information of at least one auxiliary carrier cell that can perform carrier aggregation according to the neighboring cell configuration information, UE capability information, mobility restriction list, cell coverage information, identity information of the main carrier cell to be switched, service PLMN information and aggregation mode, integrates the cell identity information of each main carrier cell and the cell identity information of the auxiliary carrier cell to obtain a cell combination, calculates the transmission rate of the aggregated carrier in the cell combination, integrates the combined cell and the transmission data, and generates the cell combination information. The target base station determines the cell combination information, avoids the process of the source base station and the target base station interacting to obtain the neighboring cell configuration information of the target base station, and reduces the process of the source base station determining the cell combination information, so that the processing of one source base station becomes parallel processing of multiple target base stations, which greatly improves the efficiency and accuracy of determining the cell combination information, thereby improving the efficiency and accuracy of the user equipment switching to a high-quality service cell.

[0064] It should be noted that when the cell combination includes high-frequency cells, the transmission rate of the aggregated carrier in the cell combination may not be calculated, and the transmission rate in the cell combination information may be set to empty. Not calculating the transmission rate of the aggregated carrier when the cell combination includes high-frequency cells can improve the efficiency of determining the cell combination information.

[0065] Step S603: Send the cell combination information to the source base station, so that the source base station switches the serving cell of the UE according to the cell combination information.

[0066] In one embodiment, after obtaining the cell combination information, the cell combination information is sent to the source base station. After receiving the cell combination information, the source base station switches the serving cell of the UE according to the cell combination information.

[0067] In one embodiment, there is only one serving cell combination in the cell combination information, and the serving cell combination is determined as the target cell combination; the serving cell of the UE is switched to the cell included in the target cell combination. There is only one serving cell combination in the cell combination information, and the serving cell of the UE is directly switched to the cell included in the cell combination, which greatly improves the efficiency and accuracy of the UE serving cell switching.

[0068] In one embodiment, there are multiple groups of service cell combinations in the cell combination information, and the service cell combination with the highest transmission rate is determined as the target cell combination; the UE's service cell is switched to the cell included in the target cell combination, so that the UE switches to the optimal carrier aggregation service cell, greatly improving the UE's transmission rate.

[0069] In one embodiment, there are multiple groups of service cell combinations in the cell combination information, and there are high-frequency cells in the service cell combination, and the service cell combination with the high-frequency cells is determined as the target cell combination; the service cell of the UE is switched to the cell included in the target cell combination, so that the UE switches to the optimal carrier aggregation service cell, which greatly improves the transmission rate of the UE.

[0070] In one embodiment, the method of switching the service cell of the UE to the cell included in the target cell combination may be: switching the service cell of the UE to the primary carrier cell in the target cell combination, and adding the secondary carrier cell in the target cell combination as the service cell of the UE to complete the switching of the service cell of the UE. By switching the primary carrier cell and adding the secondary carrier cell, the service cell of the UE can be accurately switched.

[0071] The cell switching method in the above embodiment obtains the neighboring cell configuration information of the target base station and the carrier aggregation request sent by the source base station; generates cell combination information according to the carrier aggregation request and the neighboring cell configuration information, and the cell combination information includes multiple cell identity information and the transmission rate of the cell combination; sends the cell combination information to the source base station, so that the source base station switches the service cell of the UE according to the cell combination information. In this solution, the process of determining the cell combination information is dispersed to each target base station, so that the processing process is changed from one base station to multiple base stations in parallel, which improves the efficiency of determining the cell combination information and reduces the interaction of messages between base stations, greatly improving the efficiency and accuracy of user equipment switching to high-quality service cells.

[0072] See also Figure 7 , Figure 7 A schematic block diagram of the structure of a base station provided in an embodiment of the present invention.

[0073] like Figure 7 As shown, the base station 700 includes a processor 701 and a memory 702, and the processor 701 and the memory 702 are connected via a bus 703, such as an I2C (Inter-integrated Circuit) bus.

[0074] Specifically, the processor 701 is used to provide computing and control capabilities to support the operation of the entire base station 700. The processor 701 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0075] Specifically, the memory 702 may be a Flash chip, a read-only memory (ROM) disk, an optical disk, a USB flash drive, or a mobile hard disk.

[0076] Those skilled in the art will understand that Figure 7 The structure shown in the figure is only a block diagram of a partial structure related to the scheme of the present invention, and does not constitute a limitation on the base station to which the scheme of the present invention is applied. The specific base station may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0077] The processor is used to run a computer program stored in a memory, and implement any one of the cell switching methods provided by the embodiments of the present invention when executing the computer program.

[0078] In one embodiment, the processor 701 is used to run a computer program stored in a memory, and implements the following steps when executing the computer program:

[0079] Acquire UE information of a user equipment UE of a serving cell to be switched, generate a carrier aggregation request and determine a target base station according to the UE information, where the target base station is a base station where a main carrier to be switched is located;

[0080] Sending the carrier aggregation request to the target base station, and obtaining cell combination information returned by the target base station according to the carrier aggregation request;

[0081] The serving cell of the UE is switched according to the cell combination information.

[0082] In one embodiment, the UE information includes UE capability information, a mobility restriction list and cell coverage information.

[0083] In one embodiment, when implementing the determining of the target base station according to the UE information, the processor 701 is configured to implement:

[0084] Determine, according to the UE capability information, at least one frequency combination information for characterizing carrier aggregation for the UE, where the frequency combination information includes at least two cells;

[0085] At least one of the target base stations is determined according to the frequency combination information and the cell coverage information.

[0086] In one embodiment, when the processor 701 implements the determining of at least one target base station according to the frequency combination information and the cell coverage information, it is configured to implement:

[0087] Taking the cell existing in both the frequency combination information and the cell coverage information as the primary carrier cell to be switched;

[0088] The base station where the primary carrier cell to be switched is located is determined as the target base station.

[0089] In one embodiment, when the processor 701 generates a carrier aggregation request according to the UE information, it is configured to implement:

[0090] Acquire the aggregation mode of the serving cell according to the aggregation modes supported in the UE capability information, and acquire the serving public land mobile network PLMN information of the primary carrier cell to be switched where the UE is located;

[0091] The identity information of the primary carrier cell to be switched is obtained, and the carrier aggregation request is generated according to the UE capability information, the mobility restriction list, the cell coverage information, the identity information of the primary carrier cell to be switched, the serving PLMN information and the aggregation mode.

[0092] In one embodiment, the aggregation mode includes at least one of new air interface carrier aggregation NRCA and new air interface-new air interface dual connection carrier aggregation NRDC, or at least one of long term evolution carrier aggregation LTECA and long term evolution-new air interface carrier aggregation ENDC.

[0093] In one embodiment, when implementing the switching of the serving cell of the UE according to the cell combination information, the processor 701 is configured to implement:

[0094] There is only one serving cell combination in the cell combination information, and the serving cell combination is determined as the target cell combination;

[0095] Switch the serving cell of the UE to the cell included in the target cell combination.

[0096] In one embodiment, when implementing the switching of the serving cell of the UE according to the cell combination information, the processor 701 is configured to implement:

[0097] There are multiple groups of service cell combinations in the cell combination information, and the service cell combination with the largest transmission rate is determined as the target cell combination;

[0098] Switch the serving cell of the UE to the cell included in the target cell combination.

[0099] In one embodiment, the processor 701 is further configured to implement:

[0100] Obtaining neighboring cell configuration information of the target base station and a carrier aggregation request sent by a source base station;

[0101] Generate cell combination information according to the carrier aggregation request and the neighboring cell configuration information, where the cell combination information includes multiple cell identity information and a transmission rate of the cell combination;

[0102] The cell combination information is sent to the source base station, so that the source base station switches the serving cell of the UE according to the cell combination information.

[0103] It should be noted that those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the base station described above can refer to the corresponding process in the aforementioned cell switching method embodiment, and will not be repeated here.

[0104] An embodiment of the present invention also provides a storage medium for computer-readable storage, wherein the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of any cell switching method provided in the specification of the present invention.

[0105] The storage medium may be an internal storage unit of the base station described in the foregoing embodiment, such as a hard disk or memory of the base station. The storage medium may also be an external storage device of the base station, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc., equipped on the base station.

[0106] It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0107] It should be understood that the term "and / or" used in the present specification refers to any combination of one or more of the associated listed items and all possible combinations, including these combinations. It should be noted that, in this article, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a..." does not exclude the presence of other identical elements in the process, method, article or system including the element.

[0108] The serial numbers of the embodiments of the present invention are only for description and do not represent the advantages and disadvantages of the embodiments. The above description is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be covered within the protection scope of the present invention.

Claims

1. A cell switching method, characterized in that: Applied to a source base station, the method comprises: Acquire UE information of a user equipment UE of a serving cell to be switched, generate a carrier aggregation request and determine a target base station according to the UE information, where the target base station is a base station where a main carrier to be switched is located; sending the carrier aggregation request to the target base station, and obtaining cell combination information returned by the target base station according to the carrier aggregation request; The serving cell of the UE is switched according to the cell combination information.

2. The cell switching method according to claim 1, characterized in that: The UE information includes UE capability information, a mobility restriction list and cell coverage information.

3. The cell switching method according to claim 2, characterized in that: The determining a target base station according to the UE information includes: Determine, according to the UE capability information, at least one frequency combination information for characterizing carrier aggregation for the UE, where the frequency combination information includes at least two cells; At least one of the target base stations is determined according to the frequency combination information and the cell coverage information.

4. The cell switching method according to claim 3, characterized in that: The determining at least one target base station according to the frequency combination information and the cell coverage information includes: Taking the cell existing in both the frequency combination information and the cell coverage information as the primary carrier cell to be switched; The base station where the primary carrier cell to be switched is located is determined as the target base station.

5. The cell switching method according to claim 2, characterized in that: Generating a carrier aggregation request according to the UE information includes: Acquire the aggregation mode of the serving cell according to the aggregation modes supported in the UE capability information, and acquire the serving public land mobile network PLMN information of the primary carrier cell to be switched where the UE is located; The identity information of the primary carrier cell to be switched is obtained, and the carrier aggregation request is generated according to the UE capability information, the mobility restriction list, the cell coverage information, the identity information of the primary carrier cell to be switched, the serving PLMN information and the aggregation mode.

6. The cell switching method according to claim 5, characterized in that: The aggregation mode includes at least one of new air interface carrier aggregation NRCA and new air interface-new air interface dual connection carrier aggregation NRDC, or at least one of long term evolution carrier aggregation LTECA and long term evolution-new air interface carrier aggregation ENDC.

7. The cell switching method according to claim 1, characterized in that: The switching the serving cell of the UE according to the cell combination information includes: There is only one serving cell combination in the cell combination information, and the serving cell combination is determined as the target cell combination; Switch the serving cell of the UE to the cell included in the target cell combination.

8. The cell switching method according to claim 1, characterized in that: The switching the serving cell of the UE according to the cell combination information includes: There are multiple groups of service cell combinations in the cell combination information, and the service cell combination with the largest transmission rate is determined as the target cell combination; Switch the serving cell of the UE to the cell included in the target cell combination.

9. A cell switching method, characterized in that: Applied to a target base station, the method comprises: Obtaining neighboring cell configuration information of the target base station and a carrier aggregation request sent by a source base station; Generate cell combination information according to the carrier aggregation request and the neighboring cell configuration information, where the cell combination information includes multiple cell identity information and a transmission rate of the cell combination; The cell combination information is sent to the source base station, so that the source base station switches the serving cell of the UE according to the cell combination information.

10. A base station, characterized in that: The base station includes a processor, a memory, a computer program stored in the memory and executable by the processor, and a data bus for realizing connection communication between the processor and the memory, wherein when the computer program is executed by the processor, the steps of the cell switching method according to any one of claims 1 to 9 are realized.

11. A storage medium for computer-readable storage, characterized in that: The storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of the cell switching method according to any one of claims 1 to 9.

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