Carrier determination method, device, system and storage medium

Abstract

The present application provides a carrier determination method, device, system and storage medium, which relates to the field of communication technology and can solve the problem that the data transmission requirements of the terminal cannot be met in the related technology. The method includes: when the target terminal requests to access the service cell, determining at least one uplink co-covered carrier and at least one downlink co-covered carrier; using the carrier with the largest first weight corresponding to at least one uplink co-covered carrier as the target uplink carrier; the first weight is used to characterize the communication performance of the target terminal on the uplink co-covered carrier; the target uplink carrier is used for uplink data transmission of the target terminal; using the carrier with the largest second weight corresponding to at least one downlink co-covered carrier as the target downlink carrier; the second weight is used to characterize the communication performance of the target terminal on the downlink co-covered carrier; the target downlink carrier is used for downlink data transmission of the target terminal. The present application can meet the uplink and downlink data transmission requirements of the terminal.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a carrier determination method, device, system and storage medium. Background Art

[0002] In the related art, when a terminal accesses a mobile communication network, it usually determines a service cell to be accessed based on the signal strength of a received downlink carrier, and performs data transmission through the uplink and downlink carriers of the service cell.

[0003] However, there are differences in communication performance between uplink and downlink carriers of the serving cell, and the solution of determining the serving cell to be accessed only by the signal strength of the downlink carrier cannot meet the data transmission requirements of the terminal. Summary of the invention

[0004] The present application provides a carrier determination method, device, system and storage medium, which can meet the uplink and downlink data transmission requirements of a terminal.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] In a first aspect, the present application provides a carrier determination method, the method comprising: when a target terminal requests to access a serving cell, determining at least one uplink co-covered carrier and at least one downlink co-covered carrier; the uplink co-covered carrier is an uplink carrier having an overlapping wireless signal coverage area with the uplink carrier of the serving cell; the downlink co-covered carrier is a downlink carrier having an overlapping wireless signal coverage area with the downlink carrier of the serving cell; taking the carrier with the largest first weight corresponding to at least one uplink co-covered carrier as the target uplink carrier; the first weight is used to characterize the communication performance of the target terminal on the uplink co-covered carrier; the target uplink carrier is used for uplink data transmission of the target terminal; taking the carrier with the largest second weight corresponding to at least one downlink co-covered carrier as the target downlink carrier; the second weight is used to characterize the communication performance of the target terminal on the downlink co-covered carrier, and the target downlink carrier is used for downlink data transmission of the target terminal.

[0007] Based on the above technical solution, when the target terminal requests to access the service cell, the carrier determination device obtains at least one uplink co-covered carrier and at least one downlink co-covered carrier that have overlapping wireless signal coverage areas with the carrier of the service cell, and determines the target uplink carrier based on the first weight of each uplink co-covered carrier, and determines the target downlink carrier based on the second weight of each downlink co-covered carrier. Since the first weight can characterize the communication performance of the uplink co-covered carrier, and the second weight can characterize the communication performance of the uplink co-covered carrier, the technical solution in the present application can respectively obtain the target uplink carrier with the best uplink communication performance and the target downlink carrier with the best downlink communication performance, so that the uplink and downlink data transmission performance of the target terminal is optimized, and the data transmission requirements of the target terminal are met.

[0008] In combination with the above-mentioned first aspect, in a possible implementation method, the method also includes: determining multiple co-coverage cells corresponding to the service cell; the co-coverage cells are cells in a preset area whose wireless signal coverage area overlaps with the service cell; determining at least one uplink co-coverage carrier from the uplink carriers of multiple co-coverage cells; and determining at least one downlink co-coverage carrier as the downlink carrier of multiple co-coverage cells.

[0009] In combination with the above-mentioned first aspect, in a possible implementation method, the method also includes: taking the cells that meet the first preset condition or the second preset condition in the preset area as co-covered cells; wherein the first preset condition includes: the spacing with the service cell is less than the preset distance threshold, and the difference between the azimuth of the cell and the azimuth of the service cell is less than the preset angle threshold; the second preset condition includes: the ratio of the number of first terminals to the total number of terminals accessing the service cell is greater than a preset ratio; the first terminal is a terminal that meets the third preset condition among the terminals accessing the service cell; the third preset condition includes: the difference between the signal strength of the service cell measured by the terminal and the signal strength of the cell within the preset area measured is less than the preset signal strength threshold.

[0010] In combination with the above-mentioned first aspect, in a possible implementation method, the method also includes: determining the uplink coverage performance parameters of the uplink carriers of the serving cell and multiple co-covered cells; the uplink coverage performance parameters are used to characterize the coverage capability of the uplink carrier; determining at least one uplink co-covered carrier as an uplink carrier among the uplink carriers of multiple co-covered cells that meets the preset coverage performance conditions; the preset coverage performance conditions include: the difference between the corresponding uplink coverage performance parameters and the uplink coverage performance parameters of the uplink carrier of the serving cell is less than the preset coverage performance threshold.

[0011] In combination with the above-mentioned first aspect, in a possible implementation, the method also includes: for each first uplink co-coverage carrier, obtaining the uplink carrier parameters of the first uplink co-coverage carrier; the first uplink co-coverage carrier is any one of at least one uplink co-coverage carrier; the uplink carrier parameters include at least one of the uplink coverage performance parameters, uplink service performance parameters and uplink path loss parameters; the uplink coverage performance parameters are used to characterize the coverage capability of the uplink carrier; the uplink service performance parameters are used to characterize the service performance of the target terminal on the first uplink co-coverage carrier; the uplink path loss parameters are used to characterize the transmission loss of the target terminal on the first uplink co-coverage carrier; for each first uplink co-coverage carrier, determining the first weight of the first uplink co-coverage carrier according to the uplink carrier parameters of the first uplink co-coverage carrier.

[0012] In combination with the above-mentioned first aspect, in a possible implementation method, the method also includes: sending a first parameter request message to the cell corresponding to the first uplink co-coverage carrier; the first parameter request message is used to obtain the first parameter of the first uplink co-coverage carrier; receiving a first parameter response message sent by the cell corresponding to the first uplink co-coverage carrier; the first parameter response message includes at least one of an uplink coverage performance parameter, an uplink service performance function and an uplink path loss function; in the case where the first parameter response message includes the uplink service performance function, determining the uplink service performance parameter according to the uplink service performance function; in the case where the first parameter response message includes the uplink path loss function, determining the uplink path loss parameter according to the uplink path loss function.

[0013] In combination with the above-mentioned first aspect, in a possible implementation method, the method also includes: for each first downlink co-coverage carrier, obtaining the downlink carrier parameters of the first downlink co-coverage carrier; the first downlink co-coverage carrier is any one of at least one downlink co-coverage carrier; the downlink carrier parameters include at least one of the downlink coverage performance parameters, downlink service performance parameters, energy efficiency performance parameters and downlink signal strength parameters; the downlink coverage performance parameters are used to characterize the coverage capability of the downlink carrier; the downlink service performance parameters are used to characterize the service performance of the corresponding cell on the first downlink co-coverage carrier; the energy efficiency performance parameters are used to characterize the energy efficiency performance of the corresponding cell; the downlink signal strength parameters are used to characterize the signal strength of the first downlink co-coverage carrier; for each first downlink co-coverage carrier, determine the second weight of the first downlink co-coverage carrier according to the downlink carrier parameters of the first downlink co-coverage carrier.

[0014] In combination with the above-mentioned first aspect, in a possible implementation method, the method also includes: sending a second parameter request message to the cell corresponding to the first downlink co-coverage carrier; the second parameter request message is used to obtain the second parameter of the first downlink co-coverage carrier; receiving a second parameter response message sent by the cell corresponding to the first downlink co-coverage carrier; the second parameter response message includes at least one of a downlink coverage performance parameter, a downlink service performance function, an energy efficiency performance parameter and a downlink signal strength function; when the second parameter response message includes a downlink service performance function, determining the downlink service performance parameter according to the downlink service performance function; when the second parameter response message includes a downlink signal strength function, determining the downlink signal strength parameter according to the downlink signal strength function.

[0015] In combination with the above-mentioned first aspect, in a possible implementation manner, the method also includes: receiving a first message sent by the target terminal; the first message includes access request information and terminal capability information of the target terminal; the terminal capability information is a configuration parameter of the target terminal.

[0016] In combination with the above-mentioned first aspect, in a possible implementation manner, the method further includes: sending a second message to the target terminal; the second message is used to instruct the target terminal to determine the target cell to be accessed; the second message includes target uplink carrier information and target downlink carrier information.

[0017] In combination with the first aspect, in a possible implementation manner, when the target uplink carrier and the target downlink carrier correspond to the same cell, the target cell is the cell corresponding to the target uplink carrier and the target downlink carrier.

[0018] In combination with the above-mentioned first aspect, in a possible implementation method, when the target uplink carrier and the target downlink carrier correspond to different cells, if the connection capability supported by the target terminal is uplink dual connection capability, the target cell is the cell corresponding to the target downlink carrier; the uplink dual connection capability means that the target terminal supports data transmission on two uplink carriers; if the connection capability supported by the target terminal is downlink dual connection capability, the target cell is the cell corresponding to the target uplink carrier; the downlink dual connection capability means that the target terminal supports data transmission on two downlink carriers.

[0019] In combination with the above-mentioned first aspect, in a possible implementation method, when the target uplink carrier and the target downlink carrier correspond to different cells, if the service type to be initiated by the target terminal is an uplink data service, the target cell is the cell corresponding to the target uplink carrier; if the service type to be initiated by the target terminal is a downlink data service, the target cell is the cell corresponding to the target downlink carrier; if the service type to be initiated by the target terminal is a voice service, the target cell is the cell corresponding to the target downlink carrier and the target uplink carrier respectively, and the cell that supports voice services in the serving cell.

[0020] In a second aspect, the present application provides a carrier determination device, which includes: a processing unit; a processing unit, used to determine at least one uplink co-covered carrier and at least one downlink co-covered carrier when a target terminal requests to access a service cell; the uplink co-covered carrier is an uplink carrier with an overlapping wireless signal coverage area with the uplink carrier of the service cell; the downlink co-covered carrier is a downlink carrier with an overlapping wireless signal coverage area with the downlink carrier of the service cell; the processing unit is also used to use the corresponding carrier with the largest first weight in at least one uplink co-covered carrier as the target uplink carrier; the first weight is used to characterize the communication performance of the target terminal on the uplink co-covered carrier; the target uplink carrier is used for uplink data transmission of the target terminal; the processing unit is also used to use the corresponding carrier with the largest second weight in at least one downlink co-covered carrier as the target downlink carrier; the second weight is used to characterize the communication performance of the target terminal on the downlink co-covered carrier; the target downlink carrier is used for downlink data transmission of the target terminal.

[0021] In combination with the above-mentioned second aspect, in a possible implementation method, the processing unit is used to: determine multiple co-coverage cells corresponding to the service cell; the co-coverage cell is a cell in a preset area whose wireless signal coverage area overlaps with the service cell; determine at least one uplink co-coverage carrier from the uplink carriers of multiple co-coverage cells; determine at least one downlink co-coverage carrier as the downlink carrier of multiple co-coverage cells.

[0022] In combination with the above-mentioned second aspect, in a possible implementation method, the processing unit is used to: take the cells that meet the first preset condition or the second preset condition in the preset area as co-covered cells; wherein the first preset condition includes: the spacing with the service cell is less than the preset distance threshold, and the difference between the azimuth of the cell and the azimuth of the service cell is less than the preset angle threshold; the second preset condition includes: the ratio of the number of first terminals to the total number of terminals accessing the service cell is greater than a preset ratio; the first terminal is a terminal that meets the third preset condition among the terminals accessing the service cell; the third preset condition includes: the difference between the signal strength of the service cell measured by the terminal and the signal strength of the cells within the preset area measured is less than the preset signal strength threshold.

[0023] In combination with the above-mentioned second aspect, in a possible implementation method, the processing unit is used to: determine the uplink coverage performance parameters of the uplink carriers of the serving cell and multiple co-covered cells; the uplink coverage performance parameters are used to characterize the coverage capability of the uplink carrier; determine at least one uplink co-covered carrier as an uplink carrier among the uplink carriers of multiple co-covered cells that meets the preset coverage performance conditions; the preset coverage performance conditions include: the difference between the corresponding uplink coverage performance parameters and the uplink coverage performance parameters of the uplink carrier of the serving cell is less than the preset coverage performance threshold.

[0024] In combination with the above-mentioned second aspect, in a possible implementation method, the processing unit is also used for: the processing unit is used for: for each first uplink co-coverage carrier, obtaining the uplink carrier parameters of the first uplink co-coverage carrier; the first uplink co-coverage carrier is any one of at least one uplink co-coverage carrier; the uplink carrier parameters include at least one of the uplink coverage performance parameters, uplink service performance parameters and uplink path loss parameters; the uplink coverage performance parameters are used to characterize the coverage capability of the uplink carrier; the uplink service performance parameters are used to characterize the service performance of the target terminal on the first uplink co-coverage carrier; the uplink path loss parameters are used to characterize the transmission loss of the target terminal on the first uplink co-coverage carrier; for each first uplink co-coverage carrier, determine the first weight of the first uplink co-coverage carrier according to the uplink carrier parameters of the first uplink co-coverage carrier.

[0025] In combination with the above-mentioned second aspect, in a possible implementation method, the device also includes a communication unit; the communication unit is used to send a first parameter request message to the cell corresponding to the first uplink co-coverage carrier; the first parameter request message is used to obtain the first parameter of the first uplink co-coverage carrier; the communication unit is also used to receive a first parameter response message sent by the cell corresponding to the first uplink co-coverage carrier; the first parameter response message includes at least one of an uplink coverage performance parameter, an uplink service performance function and an uplink path loss function; the processing unit is also used to determine the uplink service performance parameter according to the uplink service performance function when the first parameter response message includes the uplink service performance function; the processing unit is also used to determine the uplink path loss parameter according to the uplink path loss function when the first parameter response message includes the uplink path loss function.

[0026] In combination with the above-mentioned second aspect, in a possible implementation method, the processing unit is used to: for each first downlink co-coverage carrier, obtain the downlink carrier parameters of the first downlink co-coverage carrier; the first downlink co-coverage carrier is any one of at least one downlink co-coverage carrier; the downlink carrier parameters include at least one of the downlink coverage performance parameters, downlink service performance parameters, energy efficiency performance parameters and downlink signal strength parameters; the downlink coverage performance parameters are used to characterize the coverage capability of the downlink carrier; the downlink service performance parameters are used to characterize the service performance of the corresponding cell on the first downlink co-coverage carrier; the energy efficiency performance parameters are used to characterize the energy efficiency performance of the corresponding cell; the downlink signal strength parameters are used to characterize the signal strength of the first downlink co-coverage carrier; for each first downlink co-coverage carrier, determine the second weight of the first downlink co-coverage carrier according to the downlink carrier parameters of the first downlink co-coverage carrier.

[0027] In combination with the above-mentioned second aspect, in a possible implementation method, the device also includes a communication unit; the communication unit is used to send a second parameter request message to the cell corresponding to the first downlink co-coverage carrier; the second parameter request message is used to obtain the second parameter of the first downlink co-coverage carrier; the communication unit is also used to receive a second parameter response message sent by the cell corresponding to the first downlink co-coverage carrier; the second parameter response message includes at least one of a downlink coverage performance parameter, a downlink service performance function, an energy efficiency performance parameter and a downlink signal strength function; the processing unit is also used to determine the downlink service performance parameter according to the downlink service performance function when the second parameter response message includes the downlink service performance function; the processing unit is also used to determine the downlink signal strength parameter according to the downlink signal strength function when the second parameter response message includes the downlink signal strength function.

[0028] In combination with the above-mentioned second aspect, in a possible implementation method, the device also includes a communication unit; the communication unit is used to receive a first message sent by the target terminal; the first message includes access request information and terminal capability information of the target terminal; the terminal capability information is a configuration parameter of the target terminal.

[0029] In combination with the above-mentioned second aspect, in a possible implementation method, the device also includes a communication unit; the communication unit is used to send a second message to the target terminal; the second message is used to instruct the target terminal to determine the target cell to be accessed; the second message includes target uplink carrier information and target downlink carrier information.

[0030] In combination with the second aspect, in a possible implementation manner, when the target uplink carrier and the target downlink carrier correspond to the same cell, the target cell is the cell corresponding to the target uplink carrier and the target downlink carrier.

[0031] In combination with the above-mentioned second aspect, in a possible implementation method, when the target uplink carrier and the target downlink carrier correspond to different cells, if the connection capability supported by the target terminal is uplink dual connection capability, the target cell is the cell corresponding to the target downlink carrier; the uplink dual connection capability means that the target terminal supports data transmission on two uplink carriers; if the connection capability supported by the target terminal is downlink dual connection capability, the target cell is the cell corresponding to the target uplink carrier; the downlink dual connection capability means that the target terminal supports data transmission on two downlink carriers.

[0032] In combination with the above-mentioned second aspect, in a possible implementation method, when the target uplink carrier and the target downlink carrier correspond to different cells, if the service type to be initiated by the target terminal is an uplink data service, the target cell is the cell corresponding to the target uplink carrier; if the service type to be initiated by the target terminal is a downlink data service, the target cell is the cell corresponding to the target downlink carrier; if the service type to be initiated by the target terminal is a voice service, the target cell is the cell corresponding to the target downlink carrier and the target uplink carrier respectively, and the cell that supports voice services in the serving cell.

[0033] In a third aspect, the present application provides a carrier determination device, comprising: a processor and a communication interface; the communication interface and the processor are coupled, and the processor is used to run a computer program or instructions to implement the carrier determination method described in the first aspect and any possible implementation method of the first aspect.

[0034] In a fourth aspect, the present application provides a computer-readable storage medium, which stores instructions. When the instructions are executed on a terminal, the terminal executes the carrier determination method described in the first aspect and any possible implementation of the first aspect.

[0035] In a fifth aspect, the present application provides a computer program product comprising instructions. When the computer program product runs on a carrier determination device, the carrier determination device performs the carrier determination method as described in the first aspect and any possible implementation manner of the first aspect.

[0036] In a sixth aspect, the present application provides a chip, comprising a processor and a communication interface, wherein the communication interface and the processor are coupled, and the processor is used to run a computer program or instructions to implement the carrier determination method described in the first aspect and any possible implementation method of the first aspect.

[0037] Specifically, the chip provided in the present application also includes a memory for storing computer programs or instructions.

[0038] It should be noted that the above computer instructions may be stored in whole or in part on a computer-readable storage medium, wherein the computer-readable storage medium may be packaged together with the processor of the device, or may be packaged separately from the processor of the device, which is not limited in this application.

[0039] In a seventh aspect, the present application provides a carrier determination system, comprising: a carrier determination device and a target terminal, wherein the carrier determination device is used to perform the uplink interference suppression method described in the first aspect and any possible implementation method of the first aspect; the carrier determination device is also used to send a second message to the target terminal; the second message is used to instruct the target terminal to determine the target cell to be accessed; the second message includes target uplink carrier information and target downlink carrier information; the target terminal is used to receive the second message sent by the carrier determination device; the target terminal is also used to determine the target cell to be accessed.

[0040] In combination with the seventh aspect, in a possible implementation manner, when the target uplink carrier and the target downlink carrier correspond to the same cell, the target cell is a cell corresponding to the target uplink carrier and the target downlink carrier.

[0041] In combination with the above-mentioned seventh aspect, in a possible implementation method, when the target uplink carrier and the target downlink carrier correspond to different cells, if the connection capability supported by the target terminal is uplink dual connection capability, the target cell is the cell corresponding to the target downlink carrier; the uplink dual connection capability means that the target terminal supports data transmission on two uplink carriers; if the connection capability supported by the target terminal is downlink dual connection capability, the target cell is the cell corresponding to the target uplink carrier; the downlink dual connection capability means that the target terminal supports data transmission on two downlink carriers.

[0042] In combination with the above-mentioned seventh aspect, in a possible implementation method, when the target uplink carrier and the target downlink carrier correspond to different cells, if the service type to be initiated by the target terminal is an uplink data service, the target cell is the cell corresponding to the target uplink carrier; if the service type to be initiated by the target terminal is a downlink data service, the target cell is the cell corresponding to the target downlink carrier; if the service type to be initiated by the target terminal is a voice service, the target cell is the cell corresponding to the target downlink carrier and the target uplink carrier respectively, and the cell that supports voice services in the serving cell.

[0043] The descriptions of the second to seventh aspects of the present application can refer to the detailed description of the first aspect; and the beneficial effects of the descriptions of the second to seventh aspects can refer to the beneficial effect analysis of the first aspect, which will not be repeated here.

[0044] In this application, the name of the carrier determination device does not limit the device or functional module itself. In actual implementation, these devices or functional modules may appear with other names. As long as the functions of each device or functional module are similar to those of this application, they belong to the scope of the claims of this application and their equivalent technologies.

[0045] These and other aspects of the present application will become more apparent from the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A schematic diagram of the architecture of a carrier determination system provided in an embodiment of the present application;

[0047] Figure 2 A flowchart of a carrier determination method provided in an embodiment of the present application;

[0048] Figure 3 A flowchart of another carrier determination method provided in an embodiment of the present application;

[0049] Figure 4 A schematic diagram of a carrier wireless signal coverage area provided in an embodiment of the present application;

[0050] Figure 5 A flowchart of another carrier determination method provided in an embodiment of the present application;

[0051] Figure 6 A flowchart of another carrier determination method provided in an embodiment of the present application;

[0052] Figure 7 A flowchart of another carrier determination method provided in an embodiment of the present application;

[0053] Figure 8 A schematic diagram of the structure of a carrier determination device provided in an embodiment of the present application;

[0054] Fig. 9 A schematic diagram of the structure of another carrier determination device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0056] The term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0057] The terms "first" and "second" and the like in the specification and drawings of this application are used to distinguish different objects, or to distinguish different processing of the same object, rather than to describe a specific order of objects.

[0058] In addition, the terms "including" and "having" and any variations thereof mentioned in the description of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include other steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

[0059] It should be noted that, in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0060] In the description of the present application, unless otherwise specified, “plurality” means two or more.

[0061] In the related art, when a terminal accesses a mobile communication network, it usually determines a service cell to be accessed based on the signal strength of a received downlink carrier, and performs data transmission through the uplink and downlink carriers of the service cell.

[0062] However, there are certain differences between the uplink and downlink carriers of the service cell in terms of coverage performance, business performance, energy efficiency performance, etc. The solution of determining the service cell to be accessed only by the signal strength of the downlink carrier cannot meet the data transmission needs of the terminal.

[0063] In view of this, the present application provides a carrier determination method. When a target terminal requests to access a service cell, the carrier determination device obtains at least one uplink co-coverage carrier and at least one downlink co-coverage carrier that have overlapping wireless signal coverage areas with the carrier of the service cell, and determines the target uplink carrier based on the first weight of each uplink co-coverage carrier, and determines the target downlink carrier based on the second weight of each downlink co-coverage carrier. Since the first weight can characterize the communication performance of the uplink co-coverage carrier, and the second weight can characterize the communication performance of the uplink co-coverage carrier, the technical solution in the present application can respectively obtain the target uplink carrier with the best uplink communication performance and the target downlink carrier with the best downlink communication performance, so that the uplink and downlink data transmission performance of the target terminal is optimized, and the data transmission requirements of the target terminal are met.

[0064] In addition, the target uplink carrier and the target downlink carrier used for target terminal data transmission in the present application may correspond to the same cell or to different cells, thereby realizing a flexible combination of uplink and downlink carriers corresponding to the same terminal, so that the uplink and downlink data transmission performance of the target terminal can be optimized at the same time.

[0065] The implementation of the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0066] Figure 1 FIG. 1 is an architecture diagram of a carrier determination system 10 provided in an embodiment of the present application. Figure 1 As shown, the carrier determination system 10 includes: a carrier determination device 101, at least one access network device 102 in a preset area, and a terminal 103.

[0067] The carrier determination device 101 is connected to at least one access network device 102 via a communication link, and at least one access network device 102 is connected to a terminal 103 in a configured cell 104 via a communication link. The communication link may be a wired communication link or a wireless communication link, which is not limited in this application.

[0068] It should be noted that each access network device 102 is configured with one or more cells 104. Each cell 104 may be configured with an uplink carrier and a downlink carrier. Each uplink carrier corresponds to an uplink frequency, and a terminal 103 accessing the cell 104 may perform uplink data transmission with the cell 104 according to the uplink carrier. Correspondingly, each downlink carrier corresponds to a downlink frequency, and the cell 104 may perform downlink data transmission with a terminal accessing the cell 104 according to the downlink carrier.

[0069] The frequencies of the uplink carrier and the downlink carrier corresponding to the same cell 104 may be the same or different. For example, for a time division duplexing (TDD) cell, the frequency of the corresponding downlink carrier is the same as that of the uplink carrier. For a frequency division duplexing (FDD) cell, the frequency of the corresponding downlink carrier is different from that of the uplink carrier.

[0070] The carrier determination device 101 may be an independent communication device, such as a server. The carrier determination device 101 may also be a functional module coupled to the access network device 102, a core network device in the communication system, or a communication device maintenance platform.

[0071] For example, the carrier determination device 101 includes:

[0072] Processor, the processor can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits used to control the execution of the program of the present application.

[0073] Transceiver, a transceiver can be a device using any transceiver type for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc.

[0074] Memory, the memory may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory may exist independently and be connected to the processor through a communication line. The memory may also be integrated with the processor.

[0075] The access network device 102 is a device located at the access network side of the communication system and has a wireless transceiver function, or a chip or chip system that can be set in the device. The access network device 102 includes but is not limited to: an access point (AP) in a WiFi system, such as a home gateway, a router, a server, a switch, a bridge, etc., an evolved NodeB (eNB), a radio network controller (RNC), a NodeB (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., home evolved NodeB, or home NodeB, HNB), a base band unit (BBU), a wireless relay node, a wireless backhaul node, a transmission point (TRP or transmission point, TP), etc., and can also be a 5G base station, such as a new air interface (new The access network device 102 may be a gNB in ​​a new wireless radio (NR) system, or a transmission point (TRP or TP), one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB or a transmission point, such as a baseband unit (BBU), or a distributed unit (DU), a road side unit (RSU) with base station function, or a 5G access network (NG radio access network, NG-Ran) device. The access network device 102 also includes base stations in different networking modes, such as a master evolved NodeB (MeNB), a secondary eNB (SeNB, or a secondary gNB, SgNB). The access network device 102 also includes different types, such as ground base stations, aerial base stations, and satellite base stations.

[0076] Terminal 103 is a device with wireless communication function, which can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted. It can also be deployed on the water surface (such as ships, etc.). It can also be deployed in the air (such as airplanes, balloons and satellites, etc.). Terminal 103 is also called mobile station (MS), mobile terminal (MT) and terminal equipment, etc., and is a device that provides voice and / or data connectivity to users. For example, terminal 103 includes handheld devices with wireless connection function, vehicle-mounted devices, etc. At present, the terminal 103 can be: a mobile phone, a tablet computer, a laptop computer, a PDA, a mobile internet device (MID), a wearable device (such as a smart watch, a smart bracelet, a pedometer, etc.), a vehicle-mounted device (such as a car, a bicycle, an electric car, an airplane, a ship, a train, a high-speed train, etc.), a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a smart home device (such as a refrigerator, a television, an air conditioner, an electric meter, etc.), an intelligent robot, a workshop device, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, or a wireless terminal in a smart home, a flying device (such as an intelligent robot, a hot air balloon, a drone, an airplane), etc.

[0077] The target terminal is used to send a first message to the serving cell. Correspondingly, the serving cell receives the first message sent by the target terminal.

[0078] The first message includes access request information and terminal capability information of the target terminal, and the terminal capability information is the configuration parameters of the target terminal.

[0079] Exemplarily, the first message may be an existing air interface message, for example, when the target terminal is in an initial cell access state, the first message may be a random access request message. When the target terminal is in a cell handover state, the first message may be a handover request message. The first message may also be an air interface message added in the future.

[0080] The terminal capability information may include parameter information such as the uplink operating frequency, downlink operating frequency, and maximum spectrum efficiency of the target terminal. Among them, the maximum spectrum efficiency supported by the target terminal may be the bit rate that can be carried by a unit spectrum. The maximum spectrum efficiency may be determined based on the number of radio frequency channels supported by the target terminal, the number of multiple input multiple output (MIMO) data streams, the coding modulation method, and the maximum transmit power.

[0081] It should be noted that since the access network device 102 can be configured with one or more cells 104, in order to distinguish different cells within a preset area, the communication between the access network device 102 where the cell 104 within the preset area is located and other devices (such as the carrier determination device 101, the terminal 103) is expressed in this application as communication between the cell 104 and other devices.

[0082] When the product form of the carrier determination device 101 is the access network device 102 where the serving cell is located, the target terminal sending the first message to the serving cell is equivalent to the target terminal sending the first message to the carrier determination device 101 .

[0083] When the product form of the carrier determination device 101 is not the access network device 102 where the serving cell is located, the serving cell may forward the first message to the carrier determination device 101. Accordingly, the carrier determination device 101 receives the first message sent by the serving cell.

[0084] The carrier determination device 101 is used to determine at least one uplink co-coverage carrier and at least one downlink co-coverage carrier when a target terminal requests to access a serving cell.

[0085] The target terminal is any terminal 103 in the preset area, and the serving cell is any cell 104 in the preset area. The uplink co-covered carrier is an uplink carrier with an overlapping wireless signal coverage area with the uplink carrier of the serving cell; the downlink co-covered carrier is a downlink carrier with an overlapping wireless signal coverage area with the downlink carrier of the serving cell.

[0086] The carrier determination device 101 is further configured to determine a target uplink carrier according to a first weight of each uplink co-covering carrier in at least one uplink co-covering carrier.

[0087] The first weight is used to characterize the communication performance of the target terminal on the uplink co-covered carrier. The target uplink carrier is used for uplink data transmission of the target terminal.

[0088] The carrier determination device 101 is further configured to determine a target downlink carrier according to a second weight of each downlink co-coverage carrier in at least one downlink co-coverage carrier.

[0089] The second weight is used to characterize the communication performance of the target terminal on the downlink co-covered carrier. The target downlink carrier is used for downlink data transmission of the target terminal.

[0090] The carrier determination device 101 is used to send a second message to the target terminal. Correspondingly, the target terminal receives the second message sent by the carrier determination device 101.

[0091] The second message is used to instruct the target terminal to determine the target cell to be accessed. The second message includes target uplink carrier information and target downlink carrier information. For example, the target uplink carrier information includes information such as the cell identifier corresponding to the target uplink carrier and the frequency of the target uplink carrier. The target downlink carrier information includes information such as the cell identifier corresponding to the target downlink carrier and the frequency of the target downlink carrier.

[0092] The target terminal is used to determine a target cell to be accessed in response to the second message.

[0093] It should be pointed out that the various embodiments of the present application can learn from or refer to each other. For example, the same or similar steps, method embodiments, system embodiments and device embodiments can all refer to each other without limitation.

[0094] Figure 2 A flowchart of a carrier determination method provided in an embodiment of the present application. Figure 2 As shown, the method comprises the following steps:

[0095] Step 201: When a target terminal requests to access a serving cell, a carrier determination device determines at least one uplink co-coverage carrier and at least one downlink co-coverage carrier.

[0096] Among them, the uplink co-covered carrier is an uplink carrier with an overlapping wireless signal coverage area with the uplink carrier of the serving cell; the downlink co-covered carrier is a downlink carrier with an overlapping wireless signal coverage area with the downlink carrier of the serving cell.

[0097] In a possible implementation, the process of the target terminal requesting access to the serving cell includes:

[0098] When the carrier determination device is an independent communication device, the target terminal sends a first message to the serving cell, and correspondingly, the serving cell receives the first message sent by the target terminal.

[0099] The serving cell forwards the first message to the carrier determination device, and correspondingly, the carrier determination device receives the first message sent by the serving cell.

[0100] Alternatively, when the carrier determination device is an access network device where the serving cell is located, the target terminal sends a first message to the carrier determination device, and correspondingly, the carrier determination device receives the first message sent by the target terminal.

[0101] The first message includes access request information and terminal capability information of the target terminal; the terminal capability information is the configuration parameters of the target terminal.

[0102] Exemplarily, the first message may be an existing air interface message, for example, when the target terminal is in an initial cell access state, the first message may be a random access request message. When the target terminal is in a cell handover state, the first message may be a handover request message. The first message may also be an air interface message added in the future.

[0103] The terminal capability information may include parameter information such as the uplink operating frequency, downlink operating frequency, and maximum spectrum efficiency of the target terminal. Among them, the maximum spectrum efficiency supported by the target terminal may be the bit rate that can be carried by a unit spectrum. The maximum spectrum efficiency may be determined based on the number of radio frequency channels supported by the target terminal, the number of multiple input multiple output (MIMO) data streams, the coding modulation method, and the maximum transmit power.

[0104] Step 202: The carrier determination device uses the carrier with the largest first weight among at least one uplink co-covered carrier as a target uplink carrier.

[0105] The target uplink carrier is used for uplink data transmission of the target terminal, and the first weight is used to characterize the communication performance of the target terminal on the uplink co-covered carrier. The larger the first weight, the better the communication performance of the target terminal on the corresponding uplink co-covered carrier, and vice versa, the smaller the first weight, the worse the communication performance of the target terminal on the corresponding uplink co-covered carrier.

[0106] In this way, the target uplink carrier in the present application is the uplink co-coverage carrier with the largest first weight among at least one uplink co-coverage carrier, so the uplink communication quality of the target terminal can be guaranteed.

[0107] When the uplink co-coverage carrier with the largest first weight among the at least one uplink co-coverage carrier includes multiple carriers, the carrier determination device may select any one of the carriers as the target uplink carrier.

[0108] Exemplarily, the first weight may be determined according to an uplink carrier parameter of the uplink co-coverage carrier. The uplink carrier parameter may include at least one of an uplink coverage performance parameter, an uplink service performance parameter, and an uplink path loss parameter.

[0109] Among them, the uplink coverage performance parameter is used to characterize the coverage capability of the uplink carrier, the uplink service performance parameter is used to characterize the service performance of the target terminal on the first uplink co-coverage carrier, and the uplink path loss parameter is used to characterize the transmission loss of the target terminal on the first uplink co-coverage carrier.

[0110] Step 203: The carrier determination device uses the carrier with the largest second weight corresponding to at least one downlink co-covered carrier as a target downlink carrier.

[0111] The target downlink carrier is used for downlink data transmission of the target terminal, and the second weight is used to characterize the communication performance of the target terminal on the downlink co-covered carrier. The larger the second weight, the better the communication performance of the target terminal on the corresponding downlink co-covered carrier, and vice versa. The smaller the second weight, the worse the communication performance of the target terminal on the corresponding downlink co-covered carrier.

[0112] In this way, the target downlink carrier in the present application is the downlink co-coverage carrier with the second largest weight among at least one downlink co-coverage carrier, so the downlink communication quality of the target terminal can be guaranteed.

[0113] When the downlink co-coverage carrier with the largest second weight in the at least one downlink co-coverage carrier includes multiple carriers, the carrier determination device may select any one carrier as the target downlink carrier.

[0114] Exemplarily, the second weight may be determined according to a downlink carrier parameter of the downlink co-coverage carrier. The downlink carrier parameter may include at least one of a downlink coverage performance parameter, a downlink service performance parameter, an energy efficiency performance parameter, and a downlink signal strength parameter.

[0115] Among them, the downlink coverage performance parameter is used to characterize the coverage capability of the downlink carrier, the uplink service performance parameter is used to characterize the service performance of the corresponding cell on the first downlink co-coverage carrier, the energy efficiency performance parameter is used to characterize the energy efficiency performance of the corresponding cell, and the downlink signal strength parameter is used to characterize the signal strength of the first downlink co-coverage carrier.

[0116] Based on the above technical solution, when the target terminal requests to access the service cell, the carrier determination device obtains at least one uplink co-covered carrier and at least one downlink co-covered carrier that have overlapping wireless signal coverage areas with the carrier of the service cell, and determines the target uplink carrier based on the first weight of each uplink co-covered carrier, and determines the target downlink carrier based on the second weight of each downlink co-covered carrier. Since the first weight can characterize the communication performance of the uplink co-covered carrier, and the second weight can characterize the communication performance of the uplink co-covered carrier, the technical solution in the present application can respectively obtain the target uplink carrier with the best uplink communication performance and the target downlink carrier with the best downlink communication performance, so that the uplink and downlink data transmission performance of the target terminal is optimized, and the data transmission requirements of the target terminal are met.

[0117] The following describes a process in which the carrier determination apparatus determines an uplink co-coverage carrier and a downlink co-coverage carrier.

[0118] As a possible embodiment of the present application, Figure 2 ,like Figure 3 As shown, the above step 201 can also be implemented through the following steps 301 to 303.

[0119] Step 301: A carrier determination device determines a plurality of co-coverage cells corresponding to a serving cell.

[0120] The co-covered cell is a cell in a preset area whose wireless signal coverage area overlaps with that of the serving cell.

[0121] In a possible implementation manner, the carrier determination device takes cells in a preset area that meet the first preset condition or the second preset condition as co-coverage cells.

[0122] The first preset condition includes: the distance from the serving cell is less than a preset distance threshold, and the difference between the azimuth angle of the cell and the azimuth angle of the serving cell is less than a preset angle threshold.

[0123] The second preset condition includes: a ratio of the number of first terminals to the total number of terminals accessing the service cell is greater than a preset ratio.

[0124] The first terminal is a terminal that satisfies a third preset condition among terminals accessing the serving cell. The third preset condition includes: the difference between the signal strength of the serving cell measured by the terminal and the signal strength of the cells within the preset area measured is less than a preset signal strength threshold.

[0125] It should be noted that the distance between the service cell and other cells can be determined according to the longitude and latitude information of the access network device where the cell is located, and the azimuth of the cell is the azimuth of the antenna of the corresponding access network device. The above-mentioned preset distance threshold, preset angle threshold and preset signal strength threshold can be set according to actual conditions, and this application does not limit this.

[0126] Step 302: The carrier determination device determines at least one uplink co-coverage carrier from uplink carriers of multiple co-coverage cells.

[0127] In a possible implementation, uplink coverage performance parameters of uplink carriers of a serving cell and multiple co-coverage cells are determined, and at least one uplink co-coverage carrier is determined to be an uplink carrier among the uplink carriers of the multiple co-coverage cells that meets a preset coverage performance condition.

[0128] The uplink coverage performance parameter is used to characterize the coverage capability of the uplink carrier, and the preset coverage performance condition includes: the difference between the corresponding uplink coverage performance parameter and the uplink coverage performance parameter of the uplink carrier of the serving cell is less than a preset coverage performance threshold.

[0129] The preset coverage performance threshold can be set according to actual conditions, and this application does not limit this.

[0130] Since there may be differences in configuration information such as the frequency of the uplink carrier and the downlink carrier, the co-covered cell determined in the above step 301 by means of engineering parameter information such as the azimuth angle and location information of the cell or by the signal strength of the cell measured by the terminal can only ensure that the downlink coverage performance of the co-covered cell is close to that of the serving cell, but cannot accurately obtain the uplink co-covered carrier of the serving cell. Therefore, the present application further determines the uplink co-covered carrier of the serving cell by the uplink coverage performance parameters of the uplink carrier, thereby improving the accuracy.

[0131] Exemplarily, the uplink coverage performance parameter may be a maximum distance of a wireless signal coverage area of ​​the uplink carrier when an uplink transmission rate of the terminal on the uplink carrier is greater than a first rate threshold.

[0132] For example, Figure 4 As shown, when the first rate threshold is 1 Mbps, the wireless signal coverage area of ​​the uplink carrier F1 is area 40, and the maximum distance of the wireless signal coverage area of ​​the uplink carrier is D1. At this time, the uplink transmission rate of the terminals in area 40 on the uplink carrier F1 is greater than 1 Mbps.

[0133] It should be noted that the uplink coverage performance parameters may be determined based on network signal testing, coverage performance simulation experiments, or communication link predictions, or may be determined based on the uplink transmission rate and location information of the terminal accessing the cell.

[0134] For example, the cell obtains the location information of the terminal whose uplink transmission rate is greater than a preset threshold, and determines the distance to the terminal according to the location information of the access network device where the cell is located, and the cell uses the maximum distance to multiple terminals as the uplink coverage performance parameter of the uplink carrier. The location information of the terminal can be determined by base station positioning technology or global positioning system (GPS) positioning technology.

[0135] The terminal may send a first message including the location information of the terminal to the cell. Correspondingly, the cell receives the first message sent by the terminal and determines the location information of the terminal.

[0136] Step 303: The carrier determination device determines that the at least one downlink co-coverage carrier is a downlink carrier of the multiple co-coverage cells.

[0137] Since the coverage performance of the downlink carrier depends on the access network device of the cell corresponding to the downlink carrier, when the cell in the preset area has an overlapping wireless signal coverage area with the serving cell, the downlink carrier of the cell and the downlink carrier of the serving cell also have an overlapping wireless signal coverage area. Therefore, the carrier determination device can use the downlink carrier of the co-covered cell as the downlink co-covered carrier of the serving cell.

[0138] Based on the above technical solution, when determining at least one uplink co-coverage carrier and at least one downlink co-coverage carrier of a serving cell, the carrier determination device in the present application can determine the uplink co-coverage carrier and the downlink co-coverage carrier of the serving cell based on the difference between the uplink co-coverage carrier and the downlink co-coverage carrier, thereby improving the accuracy of determining the co-coverage carrier, so as to facilitate the subsequent better determination of the target uplink carrier and the target downlink carrier for data transmission for the target terminal.

[0139] The following describes a process in which the carrier determination apparatus determines the first weight of the uplink co-coverage carriers.

[0140] As a possible embodiment of the present application, Figure 2 ,like Figure 5 As shown, before the above step 202, the method further includes the following steps 501-502.

[0141] Step 501: For each first uplink co-coverage carrier, a carrier determination device obtains an uplink carrier parameter of the first uplink co-coverage carrier.

[0142] The first uplink co-coverage carrier is any one of the at least one uplink co-coverage carrier. The uplink carrier parameter includes at least one of an uplink coverage performance parameter, an uplink service performance parameter, and an uplink path loss parameter.

[0143] In one possible implementation, when the carrier determination device is an access network device where the service cell is located, the carrier determination device sends a first parameter request message to the cell corresponding to the first uplink co-coverage carrier, and accordingly, the cell corresponding to the first uplink co-coverage carrier receives the first parameter request message sent by the carrier determination device.

[0144] The cell corresponding to the first uplink co-coverage carrier sends a first parameter response message to the carrier determination device in response to the first parameter request message. Correspondingly, the carrier determination device receives the first parameter response message sent by the cell corresponding to the first uplink co-coverage carrier.

[0145] Alternatively, when the carrier determination device is an independent communication device, the carrier determination device sends a first parameter request message to the serving cell. Correspondingly, the serving cell receives and forwards the first parameter request message to the cell corresponding to the first uplink co-coverage carrier.

[0146] The cell corresponding to the first uplink co-coverage carrier sends a first parameter response message to the serving cell in response to the first parameter request message. Correspondingly, the serving cell receives and forwards the first parameter response message to the carrier determination device.

[0147] In the case where the first parameter response message includes the uplink service performance function, the carrier determination device may determine the uplink service performance parameter according to the uplink service performance function.

[0148] In the case where the first parameter response message includes an uplink path loss function, the carrier determination device may determine the uplink path loss parameter according to the uplink path loss function.

[0149] The first parameter request message is used to obtain the first parameter of the first uplink co-coverage carrier, and the first parameter response message includes at least one of an uplink coverage performance parameter, an uplink service performance function, and an uplink path loss function. The uplink coverage performance parameter can refer to the relevant description in the above step 302, which will not be repeated here.

[0150] It should be noted that the uplink service performance function of the first uplink co-coverage carrier is used to characterize the correspondence between the uplink service performance parameter of the first uplink co-coverage carrier and the distance parameter of the terminal. The distance parameter of the terminal is the distance between the terminal and the access network device where the cell corresponding to the first uplink co-coverage carrier is located. One uplink co-coverage carrier corresponds to one uplink service performance function.

[0151] The uplink service performance function may be determined based on a preset regression model, such as a linear regression model or a polynomial regression model.

[0152] Specifically, the carrier determination device inputs at least one uplink service performance parameter of at least one terminal accessing the first uplink co-covered carrier in the historical time and at least one distance parameter of at least one terminal into a preset regression model to obtain a trained preset regression model, and uses the trained preset regression model as the uplink service performance function of the first uplink co-covered carrier. The carrier determination device can update the uplink service performance function according to a preset period.

[0153] Exemplarily, the carrier determination device may update the uplink service performance function according to a preset period, and pre-configure it as semi-static data in the access network device where the cell is located.

[0154] The uplink service performance parameter of the terminal in the historical time may be determined by one or more of an uplink rate factor, an uplink delay factor, and an uplink reliability factor. The uplink rate factor may be a ratio of an uplink transmission rate of the terminal on an uplink carrier to a preset uplink rate, the uplink delay factor may be a ratio of a preset uplink delay to a transmission delay of the terminal on an uplink carrier, and the uplink reliability factor may be a ratio of a preset uplink block error rate (BLER) to a transmission block error rate of the terminal on an uplink carrier.

[0155] In a possible implementation, the carrier determination device inputs the distance parameter corresponding to the target terminal at the moment of requesting to access the serving cell into the uplink service performance function of the first uplink co-coverage carrier to obtain the uplink service performance parameter of the first uplink co-coverage carrier.

[0156] Based on the above technical solution, the present application uses an artificial intelligence model to determine the correspondence between the uplink service performance parameter and the distance parameter of the uplink co-covered carrier, and obtains the service performance of the uplink co-covered carrier at the location of the target terminal according to the distance parameter corresponding to the moment when the target terminal requests to access the service cell; in this way, the service performance of each uplink co-covered carrier at the location of the target terminal can be dynamically predicted, so that in the process of determining the uplink target carrier, the uplink carrier with better service performance is used as the target uplink carrier, thereby improving the uplink data transmission performance of the target terminal;

[0157] The uplink path loss function is used to characterize the correspondence between the uplink path loss parameter of the uplink carrier and the distance parameter of the terminal. The training method of the uplink path loss function can refer to the training method of the uplink service performance function, which will not be repeated here.

[0158] Exemplarily, the carrier determination device may update the uplink path loss function according to a preset period, and pre-configure it as semi-static data in the access network device where the cell is located.

[0159] The uplink path loss parameter may be a ratio of a preset path loss factor to an uplink path loss factor, and the uplink path loss factor may be a difference between a reference signal receiving power and a reference signal transmitting power of the terminal.

[0160] In a possible implementation, the carrier determination device inputs the distance parameter corresponding to the target terminal at the moment of requesting to access the serving cell into the uplink path loss function of the first uplink co-coverage carrier to obtain the uplink path loss parameter of the first uplink co-coverage carrier.

[0161] Based on the above technical solution, the present application utilizes an artificial intelligence model to determine the correspondence between the uplink path loss parameter and the distance parameter of the uplink co-coverage carrier, and then obtains the uplink path loss value corresponding to the uplink co-coverage carrier at the location of the target terminal according to the distance parameter corresponding to the moment the target terminal requests to access the service cell; in this way, the path loss value experienced by the signal transmitted by the target terminal when it reaches each uplink co-coverage carrier receiving antenna can be dynamically predicted, so that in the process of determining the uplink target carrier, the uplink co-coverage carrier with smaller uplink path loss can be used as the target uplink carrier, thereby reducing the power consumption of the target terminal.

[0162] Step 502: For each first uplink co-coverage carrier, the carrier determination device determines a first weight of the first uplink co-coverage carrier according to an uplink carrier parameter of the first uplink co-coverage carrier.

[0163] In a possible implementation manner, the carrier determination device performs weighted calculation on the uplink carrier parameter of the first uplink co-coverage carrier to obtain a first weight of the first uplink co-coverage carrier.

[0164] Among them, the weighting coefficient of each parameter in the uplink carrier parameter can be set according to actual conditions, and this application does not limit this.

[0165] Based on the above technical solution, the carrier determination device in the present application can determine the first weight of the uplink co-covered carrier according to at least one of the uplink coverage performance parameters, uplink service performance parameters and uplink path loss parameters of the uplink co-covered carrier. Among them, the uplink coverage performance parameters can reflect the coverage capability of the uplink co-covered carrier, the uplink service performance parameters can reflect the data transmission performance of the uplink co-covered carrier, and the uplink path loss parameters can reflect the transmission power requirements of the target terminal on the uplink co-covered carrier. Therefore, the first weight determined by the carrier determination device in the present application can characterize the transmission quality of the target terminal in terms of data transmission performance, energy consumption, etc. on each uplink co-covered carrier, which is beneficial for the subsequent carrier determination device to determine the uplink carrier with the best transmission quality according to the first weight.

[0166] The following describes a process in which the carrier determination apparatus determines the second weight of the downlink co-coverage carrier.

[0167] As a possible embodiment of the present application, Figure 2 ,like Figure 6 As shown, before the above step 203, the method further includes the following steps 601-602.

[0168] Step 601: For each first downlink co-coverage carrier, the carrier determination device obtains a downlink carrier parameter of the first downlink co-coverage carrier.

[0169] The first downlink co-coverage carrier is any one of the at least one downlink co-coverage carrier. The downlink carrier parameter includes at least one of a downlink coverage performance parameter, a downlink service performance parameter, an energy efficiency performance parameter, and a downlink signal strength parameter.

[0170] In one possible implementation, when the carrier determination device is an access network device where the service cell is located, the carrier determination device sends a second parameter request message to the cell corresponding to the first downlink co-coverage carrier, and accordingly, the cell corresponding to the first downlink co-coverage carrier receives the second parameter request message sent by the carrier determination device.

[0171] The cell corresponding to the first downlink co-coverage carrier sends a second parameter response message to the carrier determination device in response to the second parameter request message. Correspondingly, the carrier determination device receives the second parameter response message sent by the cell corresponding to the first downlink co-coverage carrier.

[0172] Alternatively, when the carrier determination device is an independent communication device, the carrier determination device sends a second parameter request message to the serving cell. Correspondingly, the serving cell receives and forwards the second parameter request message to the cell corresponding to the first downlink co-coverage carrier.

[0173] The cell corresponding to the first downlink co-covered carrier sends a second parameter response message to the serving cell in response to the second parameter request message. Correspondingly, the serving cell receives and forwards the second parameter response message to the carrier determination device.

[0174] In the case where the second parameter response message includes the downlink service performance function, the carrier determination device determines the downlink service performance parameter according to the downlink service performance function;

[0175] In the case that the second parameter response message includes the downlink signal strength function, the carrier determination device determines the downlink signal strength parameter according to the downlink signal strength function.

[0176] The second parameter request message is used to obtain the second parameter of the first downlink co-coverage carrier, and the second parameter response message includes at least one of a downlink coverage performance parameter, a downlink service performance function, an energy efficiency performance parameter, and a downlink signal strength function.

[0177] Exemplarily, the downlink coverage performance parameter may be the maximum distance of the wireless signal coverage area of ​​the downlink carrier when the downlink transmission rate of the terminal on the downlink carrier is greater than the second rate threshold. For related descriptions, please refer to the description of the uplink coverage performance parameter in the above step 302, which will not be repeated here.

[0178] The downlink service performance function is used to characterize the correspondence between the downlink service performance parameter of the downlink carrier and the distance parameter of the terminal. For related description, reference may be made to the description in the above step 501, which will not be repeated here.

[0179] Exemplarily, the carrier determination device may update the downlink service performance function according to a preset period, and pre-configure it as semi-static data in the access network device where the cell is located.

[0180] In a possible implementation, the carrier determination device inputs the distance parameter corresponding to the target terminal at the moment of requesting to access the serving cell into the downlink service performance function of the first downlink co-coverage carrier to obtain the downlink service performance parameter of the first downlink co-coverage carrier.

[0181] The downlink signal strength function is used to characterize the corresponding relationship between the downlink signal strength parameter of the downlink carrier and the distance parameter of the terminal.

[0182] In a possible implementation, the carrier determination device inputs the distance parameter corresponding to the target terminal at the moment of requesting to access the serving cell into the downlink signal strength function of the first downlink co-coverage carrier to obtain the downlink signal strength parameter of the first downlink co-coverage carrier.

[0183] The method for generating the downlink signal strength function may refer to the method for generating the uplink service performance function in the above step 501, and will not be described in detail here.

[0184] Exemplarily, the carrier determination device may update the downlink signal strength function according to a preset period, and pre-configure it in the access network device where the cell is located as semi-static data. Exemplarily, the downlink signal strength parameter may be a reference signal receiving power (RSRP) of the downlink carrier. The carrier determination device may update the downlink signal strength function according to a preset period, and pre-configure it in the access network device where the cell is located as semi-static data.

[0185] The energy efficiency performance parameter may be a ratio of a preset energy consumption to a predicted value of energy consumption increment of the access network device after the terminal accesses the access network device of the cell where the downlink carrier is located. The higher the energy efficiency performance parameter, the higher the energy efficiency level of the cell and the lower the energy consumption. Exemplarily, the predicted value of energy consumption increment may be the difference between the predicted value of energy consumption of the access network device after the terminal accesses the access network device where the downlink carrier is located and the energy consumption value of the access network device before the terminal accesses the downlink carrier.

[0186] The energy consumption prediction value can be determined according to an energy consumption prediction function. The energy consumption prediction function is used to characterize the corresponding relationship between the energy consumption prediction value of the access network device where the downlink carrier is located and the downlink service rate.

[0187] The method for generating the energy consumption prediction function may refer to the method for generating the uplink service performance function in the above step 501, which will not be described in detail here.

[0188] Exemplarily, the carrier determination device may update the energy consumption prediction function according to a preset period, and pre-configure it in the access network device where the cell is located as semi-static data. Exemplarily, the access network device where the cell of the downlink carrier is located uses the sum of the downlink service rate before the terminal accesses and the rate increment after the terminal accesses as the downlink service rate prediction value after the terminal accesses, and inputs the downlink service rate prediction value into the energy consumption prediction function to obtain the energy consumption prediction value of the downlink carrier.

[0189] The terminal rate increment may be the product of the maximum spectrum efficiency supported by the terminal and the carrier bandwidth corresponding to the downlink carrier.

[0190] In one possible implementation, the carrier determination device inputs the sum of the downlink service rate of the first downlink co-coverage carrier corresponding to the moment when the target terminal requests to access the service cell and the rate increment of the target terminal into the energy consumption prediction function of the first downlink co-coverage carrier, and obtains the energy consumption prediction value of the first downlink co-coverage carrier; and then calculates the difference between the energy consumption prediction value and the energy consumption value of the access network equipment where the first downlink co-coverage carrier is located corresponding to the moment when the target terminal requests to access the service cell, and obtains the energy efficiency performance parameters of the first downlink co-coverage carrier.

[0191] This method uses an artificial intelligence model to determine the corresponding relationship between the downlink service rate and energy consumption of each carrier, and applies it to the process of determining the downlink target carrier, thereby reducing the energy consumption of the base station equipment by using the carrier with better energy efficiency performance as the downlink target carrier.

[0192] Based on the above technical solution, the present application uses an artificial intelligence model to determine the corresponding relationship between the energy consumption of the access network equipment where the downlink carrier is located and the downlink service rate, and then obtains the predicted value of the energy consumption increment of the access network equipment after the target terminal accesses the access network equipment where the downlink carrier is located, so as to determine the energy efficiency performance parameters of the downlink carrier; in this way, the energy consumption increment brought about by the target terminal accessing each downlink co-covered carrier can be dynamically predicted, so that in the process of determining the downlink target carrier, the downlink co-covered carrier with a smaller energy consumption increment can be used as the target downlink carrier, thereby reducing the energy consumption of the access network equipment.

[0193] Step 602: For each first downlink co-coverage carrier, the carrier determination device determines a second weight of the first downlink co-coverage carrier according to a downlink carrier parameter of the first downlink co-coverage carrier.

[0194] In a possible implementation, the carrier determination device performs weighted calculation on the downlink carrier parameters to obtain the second weight of the first downlink co-covered carrier. The weighting coefficient of each parameter in the downlink carrier parameters can be set according to actual conditions, and this application does not limit this.

[0195] Based on the above technical solution, the carrier determination device in the present application can determine the second weight of the downlink co-coverage carrier according to at least one of the downlink coverage performance parameters, downlink service performance parameters, energy efficiency performance parameters and downlink signal strength parameters. Among them, the downlink coverage performance parameters can reflect the coverage capability of the downlink co-coverage carrier, the downlink service performance parameters can reflect the data transmission performance of the downlink co-coverage carrier, and the energy efficiency performance parameters can reflect the energy efficiency level of the downlink co-coverage carrier. Therefore, the second weight determined by the carrier determination device in the present application can characterize the data transmission performance of the downlink co-coverage carrier and the transmission quality in terms of energy consumption of the access network equipment, which is beneficial for the subsequent carrier determination device to determine the downlink carrier with the best transmission quality according to the second weight.

[0196] The following describes a process in which the carrier determination apparatus instructs the target terminal to access the target cell.

[0197] As a possible embodiment of the present application, Figure 2 ,like Figure 7 As shown, the method also includes the following steps 701.

[0198] Step 701: The carrier determination device sends a second message to a target terminal. Correspondingly, the target terminal receives the second message sent by the carrier determination device and determines a target cell to be accessed.

[0199] The second message is used to instruct the target terminal to determine the target cell to be accessed. The second message includes target uplink carrier information and target downlink carrier information. For example, the target uplink carrier information includes information such as the cell identifier corresponding to the target uplink carrier and the frequency of the target uplink carrier. The target downlink carrier information includes information such as the cell identifier corresponding to the target downlink carrier and the frequency of the target downlink carrier.

[0200] Exemplarily, the second message may be an existing air interface message, for example, when the target terminal is in an initial cell access state, the second message may be a random access response message. When the target terminal is in a cell switching state, the second message may be a switching command message. The second message may also be an air interface message added in the future.

[0201] It should be noted that, when the carrier determination device is an independent communication device, the target terminal sends the second message to the serving cell, and correspondingly, the serving cell receives the second message sent by the target terminal.

[0202] The serving cell forwards the second message to the carrier determination device, and correspondingly, the carrier determination device receives the second message sent by the serving cell.

[0203] Alternatively, when the carrier determination device is an access network device where the serving cell is located, the target terminal sends a second message to the carrier determination device, and correspondingly, the carrier determination device receives the second message sent by the target terminal.

[0204] In a possible implementation manner, when the target uplink carrier and the target downlink carrier correspond to the same cell, the target cell is the cell corresponding to the target uplink carrier and the target downlink carrier.

[0205] In this case, the target terminal may disconnect from the serving cell and re-access the target cell. In this way, the target terminal may perform uplink data transmission through the target uplink carrier and perform downlink data transmission through the target downlink carrier.

[0206] In yet another possible implementation, when the target uplink carrier and the target downlink carrier correspond to different cells, the target terminal may determine the target cell to be accessed according to the supported connection capability or service type.

[0207] In one example, the connection capabilities supported by the target terminal include: uplink dual connection capability and downlink dual connection capability. The uplink dual connection capability means that the target terminal supports data transmission on two uplink carriers, and the downlink dual connection capability means that the target terminal supports data transmission on two downlink carriers.

[0208] If the connection capability supported by the target terminal is uplink dual connection capability, the target cell is the cell corresponding to the target downlink carrier.

[0209] In this case, the target terminal can disconnect from the serving cell, reconnect to the cell corresponding to the target downlink carrier, and use the target uplink carrier as a secondary carrier. In this way, the target terminal can simultaneously perform uplink data transmission through the target uplink carrier and the uplink carrier of the target cell, and perform downlink data transmission through the target downlink carrier.

[0210] If the connection capability supported by the target terminal is downlink dual connection capability, the target cell is the cell corresponding to the target uplink carrier.

[0211] In this case, the target terminal can disconnect from the serving cell, reconnect to the cell corresponding to the target uplink carrier, and use the target downlink carrier as a secondary carrier. In this way, the target terminal can perform uplink data transmission through the target uplink carrier, and perform downlink data transmission through the target downlink carrier and the downlink carrier of the target cell at the same time.

[0212] If the connection capability supported by the target terminal includes both uplink dual connection capability and downlink dual connection capability, the target cell is the cell corresponding to the target downlink carrier, or the target cell is the cell corresponding to the target uplink carrier. For details, please refer to the above description.

[0213] If the target terminal does not support both the uplink dual connectivity capability and the downlink dual connectivity capability, the target cell is a cell corresponding to the target downlink carrier, or the target cell is a cell corresponding to the target uplink carrier.

[0214] At this time, the target terminal can perform uplink data transmission through the uplink carrier of the target cell, and perform downlink data transmission through the downlink carrier of the target cell.

[0215] In another example, the service types to be initiated by the target terminal include: uplink data service, downlink data service and voice service.

[0216] If the service type to be initiated by the target terminal is an uplink data service, the target cell is the cell corresponding to the target uplink carrier. The target terminal can perform uplink data transmission through the uplink carrier of the target cell and perform downlink data transmission through the downlink carrier of the target cell.

[0217] If the service type to be initiated by the target terminal is a downlink data service, the target cell is the cell corresponding to the target downlink carrier. The target terminal can perform uplink data transmission through the uplink carrier of the target cell and perform downlink data transmission through the downlink carrier of the target cell.

[0218] If the service type to be initiated by the target terminal is a voice service, the target cell is a cell corresponding to the target downlink carrier and the target uplink carrier respectively, and a cell supporting the voice service in the serving cell.

[0219] Exemplarily, the serving cell may send a system broadcast message including the voice service support capability of the serving cell to the target terminal. The second message may also include the voice service support capability of the cells corresponding to the target downlink carrier and the target uplink carrier, respectively.

[0220] Based on the above technical solution, in the present application, the target cell to be accessed by the target terminal can be determined according to the determined target downlink carrier and target uplink carrier. In the case where the target uplink carrier and the target downlink carrier correspond to the same cell, the target terminal can perform uplink data transmission through the target uplink carrier and perform downlink data transmission through the target downlink carrier. In the case where the target uplink carrier and the target downlink carrier correspond to different cells, the carrier used for uplink data transmission and the carrier used for downlink data transmission can be determined according to the connection capability or service type supported by the target terminal, thereby ensuring the data transmission performance of the target terminal and the transmission performance requirements of different service types of the target terminal.

[0221] In addition, the target uplink carrier and the target downlink carrier used for data transmission of the target terminal in the present application may correspond to the same cell or to different cells, thereby realizing a flexible combination of uplink and downlink carriers corresponding to the same terminal, so that the uplink and downlink data transmission performance of the target terminal can be optimized at the same time. The embodiment of the present application may divide the carrier determination device into functional modules or functional units according to the above method example. For example, each functional module or functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The above integrated module may be implemented in the form of hardware or in the form of software functional modules or functional units. Among them, the division of modules or units in the embodiment of the present application is schematic, which is only a logical function division, and there may be other division methods in actual implementation.

[0222] like Figure 8 FIG. 8 is a schematic diagram of the structure of a carrier determination device provided in an embodiment of the present application. The carrier determination device 80 includes:

[0223] Processing unit 801 is used to determine at least one uplink co-coverage carrier and at least one downlink co-coverage carrier when the target terminal requests to access the serving cell; the uplink co-coverage carrier is an uplink carrier with an overlapping wireless signal coverage area with the uplink carrier of the serving cell; the downlink co-coverage carrier is a downlink carrier with an overlapping wireless signal coverage area with the downlink carrier of the serving cell.

[0224] The processing unit 801 is also used to use the carrier with the largest first weight corresponding to at least one uplink co-covered carrier as the target uplink carrier; the first weight is used to characterize the communication performance of the target terminal on the uplink co-covered carrier; the target uplink carrier is used for uplink data transmission of the target terminal.

[0225] The processing unit 801 is also used to use the carrier with the largest second weight corresponding to at least one downlink co-covered carrier as the target downlink carrier; the second weight is used to characterize the communication performance of the target terminal on the downlink co-covered carrier; the target downlink carrier is used for downlink data transmission of the target terminal.

[0226] In one possible implementation, the processing unit 801 is used to: determine multiple co-coverage cells corresponding to the service cell; the co-coverage cells are cells in a preset area whose wireless signal coverage area overlaps with the service cell; determine at least one uplink co-coverage carrier from the uplink carriers of the multiple co-coverage cells; and determine at least one downlink co-coverage carrier to be the downlink carrier of the multiple co-coverage cells.

[0227] In one possible implementation, the processing unit 801 is used to: take cells in a preset area that meet a first preset condition or a second preset condition as co-covered cells; wherein the first preset condition includes: the spacing from the service cell is less than a preset distance threshold, and the difference between the azimuth of the cell and the azimuth of the service cell is less than a preset angle threshold; the second preset condition includes: the ratio of the number of first terminals to the total number of terminals accessing the service cell is greater than a preset ratio; the first terminal is a terminal among the terminals accessing the service cell that meets a third preset condition; the third preset condition includes: the difference between the signal strength of the service cell measured by the terminal and the signal strength of the cells in the preset area measured is less than a preset signal strength threshold.

[0228] In one possible implementation, the processing unit 801 is used to: determine the uplink coverage performance parameters of the uplink carriers of the serving cell and multiple co-covered cells; the uplink coverage performance parameters are used to characterize the coverage capability of the uplink carrier; determine at least one uplink co-covered carrier as an uplink carrier among the uplink carriers of multiple co-covered cells that meets a preset coverage performance condition; the preset coverage performance condition includes: the difference between the corresponding uplink coverage performance parameter and the uplink coverage performance parameter of the uplink carrier of the serving cell is less than a preset coverage performance threshold.

[0229] In a possible implementation, the processing unit 801 is also used for: the processing unit 801 is used for: for each first uplink co-covered carrier, obtaining the uplink carrier parameters of the first uplink co-covered carrier; the first uplink co-covered carrier is any one of at least one uplink co-covered carrier; the uplink carrier parameters include at least one of the uplink coverage performance parameters, uplink service performance parameters and uplink path loss parameters; the uplink coverage performance parameters are used to characterize the coverage capability of the uplink carrier; the uplink service performance parameters are used to characterize the service performance of the target terminal on the first uplink co-covered carrier; the uplink path loss parameters are used to characterize the transmission loss of the target terminal on the first uplink co-covered carrier; for each first uplink co-covered carrier, determine the first weight of the first uplink co-covered carrier according to the uplink carrier parameters of the first uplink co-covered carrier.

[0230] In one possible implementation, the communication unit 802 is used to send a first parameter request message to the cell corresponding to the first uplink co-coverage carrier; the first parameter request message is used to obtain the first parameter of the first uplink co-coverage carrier; the communication unit 802 is also used to receive a first parameter response message sent by the cell corresponding to the first uplink co-coverage carrier; the first parameter response message includes at least one of an uplink coverage performance parameter, an uplink service performance function and an uplink path loss function; the processing unit 801 is also used to determine the uplink service performance parameter according to the uplink service performance function when the first parameter response message includes the uplink service performance function; the processing unit 801 is also used to determine the uplink path loss parameter according to the uplink path loss function when the first parameter response message includes the uplink path loss function.

[0231] In one possible implementation, the processing unit 801 is used to: for each first downlink co-coverage carrier, obtain the downlink carrier parameters of the first downlink co-coverage carrier; the first downlink co-coverage carrier is any one of at least one downlink co-coverage carrier; the downlink carrier parameters include at least one of the downlink coverage performance parameters, downlink service performance parameters, energy efficiency performance parameters and downlink signal strength parameters; the downlink coverage performance parameters are used to characterize the coverage capability of the downlink carrier; the downlink service performance parameters are used to characterize the service performance of the corresponding cell on the first downlink co-coverage carrier; the energy efficiency performance parameters are used to characterize the energy efficiency performance of the corresponding cell; the downlink signal strength parameters are used to characterize the signal strength of the first downlink co-coverage carrier; for each first downlink co-coverage carrier, determine the second weight of the first downlink co-coverage carrier according to the downlink carrier parameters of the first downlink co-coverage carrier.

[0232] In one possible implementation, the communication unit 802 is used to send a second parameter request message to the cell corresponding to the first downlink co-coverage carrier; the second parameter request message is used to obtain the second parameter of the first downlink co-coverage carrier; the communication unit 802 is also used to receive a second parameter response message sent by the cell corresponding to the first downlink co-coverage carrier; the second parameter response message includes at least one of a downlink coverage performance parameter, a downlink service performance function, an energy efficiency performance parameter and a downlink signal strength function; the processing unit 801 is also used to determine the downlink service performance parameter according to the downlink service performance function when the second parameter response message includes the downlink service performance function; the processing unit 801 is also used to determine the downlink signal strength parameter according to the downlink signal strength function when the second parameter response message includes the downlink signal strength function.

[0233] In a possible implementation, the communication unit 802 is configured to receive a first message sent by a target terminal; the first message includes access request information and terminal capability information of the target terminal; and the terminal capability information is a configuration parameter of the target terminal.

[0234] In a possible implementation, the communication unit 802 is used to send a second message to the target terminal; the second message is used to instruct the target terminal to determine a target cell to be accessed; the second message includes target uplink carrier information and target downlink carrier information.

[0235] In a possible implementation manner, when the target uplink carrier and the target downlink carrier correspond to the same cell, the target cell is the cell corresponding to the target uplink carrier and the target downlink carrier.

[0236] In a possible implementation, when the target uplink carrier and the target downlink carrier correspond to different cells, if the connection capability supported by the target terminal is uplink dual connection capability, the target cell is the cell corresponding to the target downlink carrier; the uplink dual connection capability means that the target terminal supports data transmission on two uplink carriers; if the connection capability supported by the target terminal is downlink dual connection capability, the target cell is the cell corresponding to the target uplink carrier; the downlink dual connection capability means that the target terminal supports data transmission on two downlink carriers.

[0237] In a possible implementation, when the target uplink carrier and the target downlink carrier correspond to different cells, if the service type to be initiated by the target terminal is an uplink data service, the target cell is the cell corresponding to the target uplink carrier; if the service type to be initiated by the target terminal is a downlink data service, the target cell is the cell corresponding to the target downlink carrier; if the service type to be initiated by the target terminal is a voice service, the target cell is the cell corresponding to the target downlink carrier and the target uplink carrier respectively, and the cell that supports voice services in the serving cell.

[0238] When implemented by hardware, the communication unit 802 in the embodiment of the present application can be integrated on the communication interface, and the processing unit 801 can be integrated on the processor. Fig. 9 shown.

[0239] Fig. 9 Another possible structural diagram of the carrier determination device involved in the above embodiment is shown. The carrier determination device 90 includes: a processor 902 and a communication interface 903. The processor 902 is used to control and manage the actions of the carrier determination device, for example, to execute the steps performed by the above processing unit 801, and / or to execute other processes of the technology described in this document. The communication interface 903 is used to support the communication between the carrier determination device and other network entities, for example, to execute the steps performed by the above communication unit 802. The carrier determination device may also include a memory 901 and a bus 904, and the memory 901 is used to store program code and data of the carrier determination device.

[0240] Among them, the memory 901 can be a memory in a carrier determination device, etc., and the memory can include a volatile memory, such as a random access memory; the memory can also include a non-volatile memory, such as a read-only memory, a flash memory, a hard disk or a solid-state drive; the memory can also include a combination of the above types of memory.

[0241] The processor 902 may be a processor that implements or executes various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of the present application. The processor may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The processor may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of the present application. The processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0242] The bus 904 may be an Extended Industry Standard Architecture (EISA) bus, etc. The bus 904 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig. 9 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0243] Fig. 9 The carrier determination device in the embodiment may also be a chip. The chip includes one or more than two (including two) processors 902 and a communication interface 903.

[0244] In some embodiments, the chip further includes a memory 901, which may include a read-only memory and a random access memory and provide operation instructions and data to the processor 902. A portion of the memory 901 may also include a non-volatile random access memory (NVRAM).

[0245] In some implementations, the memory 901 stores the following elements, execution modules or data structures, or a subset thereof, or an extended set thereof.

[0246] In the embodiment of the present application, the corresponding operation is performed by calling the operation instruction stored in the memory 901 (the operation instruction may be stored in the operating system).

[0247] Through the description of the above implementation methods, technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0248] An embodiment of the present application provides a computer program product including instructions. When the computer program product is run on a computer, the computer is enabled to execute the carrier determination method in the above method embodiment.

[0249] An embodiment of the present application also provides a computer-readable storage medium, in which instructions are stored. When the instructions are executed on a computer, the computer executes the carrier determination method in the method flow shown in the above method embodiment.

[0250] Among them, the computer readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer readable storage media (a non-exhaustive list) include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a register, a hard disk, an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above, or any other form of computer readable storage medium known in the art. An exemplary storage medium is coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an application-specific integrated circuit (ASIC). In the embodiments of the present application, a computer-readable storage medium may be any tangible medium that contains or stores a program, which may be used by or in conjunction with an instruction execution system, apparatus, or device.

[0251] Since the carrier determination device, computer-readable storage medium, and computer program product in the embodiments of the present application can be applied to the above method, the technical effects that can be obtained can also refer to the above method embodiments, and the embodiments of the present application will not be repeated here.

[0252] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0253] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0254] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0255] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A carrier determination method, characterized in that: The method comprises: In the case where the target terminal requests to access the serving cell, determining a plurality of co-covered cells corresponding to the serving cell; the co-covered cells are cells in a preset area where the wireless signal coverage area overlaps with that of the serving cell; Determine at least one uplink co-covered carrier from the uplink carriers of the multiple co-covered cells; the uplink co-covered carrier is an uplink carrier having an overlapping wireless signal coverage area with the uplink carrier of the serving cell; Determine at least one downlink co-coverage carrier as a downlink carrier of the multiple co-coverage cells; the downlink co-coverage carrier is a downlink carrier having an overlapping wireless signal coverage area with the downlink carrier of the serving cell; The carrier with the largest first weight corresponding to the at least one uplink co-covered carrier is used as the target uplink carrier; the first weight is used to characterize the communication performance of the target terminal on the uplink co-covered carrier; the target uplink carrier is used for uplink data transmission of the target terminal; The carrier with the largest second weight corresponding to the at least one downlink co-covered carrier is used as the target downlink carrier; the second weight is used to characterize the communication performance of the target terminal on the downlink co-covered carrier; the target downlink carrier is used for downlink data transmission of the target terminal.

2. The method according to claim 1, characterized in that The determining, from the uplink carriers of the multiple co-covered cells, the at least one uplink co-covered carrier comprises: Determining an uplink coverage performance parameter of an uplink carrier of the serving cell and the multiple co-covered cells; the uplink coverage performance parameter is used to characterize the coverage capability of the uplink carrier; Determine at least one uplink co-coverage carrier as an uplink carrier among the uplink carriers of the multiple co-coverage cells that meets a preset coverage performance condition; the preset coverage performance condition includes: a difference between a corresponding uplink coverage performance parameter and an uplink coverage performance parameter of the uplink carrier of the serving cell is less than a preset coverage performance threshold.

3. The method according to claim 1, characterized in that The method further comprises: For each first uplink co-covered carrier, obtain the uplink carrier parameters of the first uplink co-covered carrier; the first uplink co-covered carrier is any one of the at least one uplink co-covered carrier; the uplink carrier parameters include at least one of an uplink coverage performance parameter, an uplink service performance parameter and an uplink path loss parameter; the uplink coverage performance parameter is used to characterize the coverage capability of the uplink carrier; the uplink service performance parameter is used to characterize the service performance of the target terminal on the first uplink co-covered carrier; the uplink path loss parameter is used to characterize the transmission loss of the target terminal on the first uplink co-covered carrier; For each first uplink co-coverage carrier, a first weight of the first uplink co-coverage carrier is determined according to an uplink carrier parameter of the first uplink co-coverage carrier.

4. The method according to claim 3, characterized in that: The acquiring the uplink carrier parameter of the first uplink co-covered carrier includes: Sending a first parameter request message to a cell corresponding to the first uplink co-coverage carrier; the first parameter request message is used to obtain a first parameter of the first uplink co-coverage carrier; Receiving a first parameter response message sent by a cell corresponding to the first uplink co-covered carrier; the first parameter response message includes at least one of an uplink coverage performance parameter, an uplink service performance function, and an uplink path loss function; In a case where the first parameter response message includes an uplink service performance function, determining the uplink service performance parameter according to the uplink service performance function; In a case where the first parameter response message includes an uplink path loss function, the uplink path loss parameter is determined according to the uplink path loss function.

5. The method according to claim 1, characterized in that The method further comprises: For each first downlink co-covered carrier, obtain the downlink carrier parameters of the first downlink co-covered carrier; the first downlink co-covered carrier is any one of the at least one downlink co-covered carrier; the downlink carrier parameters include at least one of a downlink coverage performance parameter, a downlink service performance parameter, an energy efficiency performance parameter and a downlink signal strength parameter; the downlink coverage performance parameter is used to characterize the coverage capability of the downlink carrier; the downlink service performance parameter is used to characterize the service performance of the corresponding cell on the first downlink co-covered carrier; the energy efficiency performance parameter is used to characterize the energy efficiency performance of the corresponding cell; the downlink signal strength parameter is used to characterize the signal strength of the first downlink co-covered carrier; For each first downlink co-coverage carrier, a second weight of the first downlink co-coverage carrier is determined according to a downlink carrier parameter of the first downlink co-coverage carrier.

6. The method according to claim 5, characterized in that The acquiring a downlink carrier parameter of the first downlink co-coverage carrier includes: Sending a second parameter request message to a cell corresponding to the first downlink co-coverage carrier; the second parameter request message is used to obtain a second parameter of the first downlink co-coverage carrier; Receive a second parameter response message sent by the cell corresponding to the first downlink co-coverage carrier; the second parameter response message includes at least one of a downlink coverage performance parameter, a downlink service performance function, an energy efficiency performance parameter, and a downlink signal strength function; In a case where the second parameter response message includes a downlink service performance function, determining the downlink service performance parameter according to the downlink service performance function; In a case where the second parameter response message includes a downlink signal strength function, the downlink signal strength parameter is determined according to the downlink signal strength function.

7. The method according to any one of claims 1 to 6, characterized in that: The method further comprises: A first message sent by a target terminal is received; the first message includes access request information and terminal capability information of the target terminal; the terminal capability information is a configuration parameter of the target terminal.

8. The method according to any one of claims 1 to 6, characterized in that: The method further comprises: A second message is sent to the target terminal; the second message is used to instruct the target terminal to determine a target cell to be accessed; the second message includes target uplink carrier information and target downlink carrier information.

9. The method according to claim 8, characterized in that In the case that the target uplink carrier and the target downlink carrier correspond to the same cell, the target cell is the cell corresponding to the target uplink carrier and the target downlink carrier.

10. The method according to claim 8, characterized in that In a case where the target uplink carrier and the target downlink carrier correspond to different cells, if the connection capability supported by the target terminal is uplink dual connectivity capability, the target cell is the cell corresponding to the target downlink carrier; the uplink dual connectivity capability means that the target terminal supports data transmission on two uplink carriers; If the connection capability supported by the target terminal is downlink dual connection capability, the target cell is a cell corresponding to the target uplink carrier; the downlink dual connection capability means that the target terminal supports data transmission on two downlink carriers.

11. The method according to claim 8, characterized in that In a case where the target uplink carrier and the target downlink carrier correspond to different cells, if the service type to be initiated by the target terminal is an uplink data service, the target cell is the cell corresponding to the target uplink carrier; If the service type to be initiated by the target terminal is a downlink data service, the target cell is a cell corresponding to the target downlink carrier; If the service type to be initiated by the target terminal is a voice service, the target cell is a cell corresponding to the target downlink carrier and the target uplink carrier respectively and a cell in the serving cell that supports the voice service.

12. A carrier determination device, characterized in that: include: Processing unit; The processing unit is configured to determine, when the target terminal requests to access the serving cell, a plurality of co-covered cells corresponding to the serving cell; the co-covered cells are cells in a preset area that have overlapping wireless signal coverage areas with the serving cell; The processing unit is further configured to determine at least one uplink co-covered carrier from the uplink carriers of the multiple co-covered cells; the uplink co-covered carrier is an uplink carrier having an overlapping wireless signal coverage area with the uplink carrier of the serving cell; The processing unit is further configured to determine that at least one downlink co-coverage carrier is a downlink carrier of the multiple co-coverage cells; the downlink co-coverage carrier is a downlink carrier having an overlapping wireless signal coverage area with the downlink carrier of the serving cell; The processing unit is further used to use the carrier with the largest first weight corresponding to the at least one uplink co-covered carrier as the target uplink carrier; the first weight is used to characterize the communication performance of the target terminal on the uplink co-covered carrier; the target uplink carrier is used for uplink data transmission of the target terminal; The processing unit is further configured to use the carrier with the largest second weight corresponding to the at least one downlink co-covered carrier as the target downlink carrier; The second weight is used to characterize the communication performance of the target terminal on the downlink co-coverage carrier; the target downlink carrier is used for downlink data transmission of the target terminal.

13. The device according to claim 12, characterized in that The processing unit is used for: Determining an uplink coverage performance parameter of an uplink carrier of the serving cell and the multiple co-covered cells; the uplink coverage performance parameter is used to characterize the coverage capability of the uplink carrier; Determine at least one uplink co-coverage carrier as an uplink carrier that meets a preset coverage performance condition among the uplink carriers of the multiple co-coverage cells; The preset coverage performance condition includes: a difference between a corresponding uplink coverage performance parameter and an uplink coverage performance parameter of an uplink carrier of a serving cell is less than a preset coverage performance threshold.

14. The device according to claim 12, characterized in that The processing unit is used for: For each first uplink co-covered carrier, obtain an uplink carrier parameter of the first uplink co-covered carrier; the first uplink co-covered carrier is any one of the at least one uplink co-covered carrier; the uplink carrier parameter includes at least one of an uplink coverage performance parameter, an uplink service performance parameter, and an uplink path loss parameter; The uplink coverage performance parameter is used to characterize the coverage capability of the uplink carrier; the uplink service performance parameter is used to characterize the service performance of the target terminal on the first uplink co-covered carrier; the uplink path loss parameter is used to characterize the transmission loss of the target terminal on the first uplink co-covered carrier; For each first uplink co-coverage carrier, a first weight of the first uplink co-coverage carrier is determined according to an uplink carrier parameter of the first uplink co-coverage carrier.

15. The device according to claim 14, characterized in that The device also includes a communication unit; The communication unit is used to send a first parameter request message to the cell corresponding to the first uplink co-coverage carrier; the first parameter request message is used to obtain a first parameter of the first uplink co-coverage carrier; The communication unit is further configured to receive a first parameter response message sent by a cell corresponding to the first uplink co-coverage carrier; the first parameter response message includes at least one of an uplink coverage performance parameter, an uplink service performance function, and an uplink path loss function; The processing unit is further configured to determine the uplink service performance parameter according to the uplink service performance function when the first parameter response message includes the uplink service performance function; The processing unit is further configured to determine the uplink path loss parameter according to the uplink path loss function when the first parameter response message includes the uplink path loss function.

16. The device according to claim 12, characterized in that The processing unit is used for: For each first downlink co-covered carrier, obtain the downlink carrier parameters of the first downlink co-covered carrier; the first downlink co-covered carrier is any one of the at least one downlink co-covered carrier; the downlink carrier parameters include at least one of a downlink coverage performance parameter, a downlink service performance parameter, an energy efficiency performance parameter and a downlink signal strength parameter; the downlink coverage performance parameter is used to characterize the coverage capability of the downlink carrier; the downlink service performance parameter is used to characterize the service performance of the corresponding cell on the first downlink co-covered carrier; the energy efficiency performance parameter is used to characterize the energy efficiency performance of the corresponding cell; the downlink signal strength parameter is used to characterize the signal strength of the first downlink co-covered carrier; For each first downlink co-coverage carrier, a second weight of the first downlink co-coverage carrier is determined according to a downlink carrier parameter of the first downlink co-coverage carrier.

17. The device according to claim 16, characterized in that The device also includes a communication unit; The communication unit is used to send a second parameter request message to the cell corresponding to the first downlink co-coverage carrier; the second parameter request message is used to obtain a second parameter of the first downlink co-coverage carrier; The communication unit is further used to receive a second parameter response message sent by the cell corresponding to the first downlink co-coverage carrier; the second parameter response message includes at least one of a downlink coverage performance parameter, a downlink service performance function, an energy efficiency performance parameter, and a downlink signal strength function; The processing unit is further configured to determine the downlink service performance parameter according to the downlink service performance function when the second parameter response message includes the downlink service performance function; The processing unit is further configured to determine the downlink signal strength parameter according to the downlink signal strength function when the second parameter response message includes a downlink signal strength function.

18. The device according to any one of claims 12 to 17, characterized in that: The device also includes a communication unit; The communication unit is used to receive a first message sent by a target terminal; the first message includes access request information and terminal capability information of the target terminal; the terminal capability information is a configuration parameter of the target terminal.

19. The device according to any one of claims 12 to 17, characterized in that: The device also includes a communication unit; The communication unit is used to send a second message to the target terminal; the second message is used to instruct the target terminal to determine a target cell to be accessed; the second message includes target uplink carrier information and target downlink carrier information.

20. The device according to claim 19, characterized in that In the case that the target uplink carrier and the target downlink carrier correspond to the same cell, the target cell is the cell corresponding to the target uplink carrier and the target downlink carrier.

21. The device according to claim 19, characterized in that In a case where the target uplink carrier and the target downlink carrier correspond to different cells, if the connection capability supported by the target terminal is uplink dual connectivity capability, the target cell is the cell corresponding to the target downlink carrier; the uplink dual connectivity capability means that the target terminal supports data transmission on two uplink carriers; If the connection capability supported by the target terminal is downlink dual connection capability, the target cell is a cell corresponding to the target uplink carrier; the downlink dual connection capability means that the target terminal supports data transmission on two downlink carriers.

22. The device according to claim 19, characterized in that In a case where the target uplink carrier and the target downlink carrier correspond to different cells, if the service type to be initiated by the target terminal is an uplink data service, the target cell is the cell corresponding to the target uplink carrier; If the service type to be initiated by the target terminal is a downlink data service, the target cell is a cell corresponding to the target downlink carrier; If the service type to be initiated by the target terminal is a voice service, the target cell is a cell corresponding to the target downlink carrier and the target uplink carrier respectively and a cell in the serving cell that supports the voice service.

23. A carrier determination system, characterized in that: include: A carrier determination device and a target terminal; wherein the carrier determination device is used to perform the carrier determination method according to any one of claims 1 to 7; The carrier determination device is further used to send a second message to the target terminal; the second message is used to instruct the target terminal to determine the target cell to be accessed; the second message includes target uplink carrier information and target downlink carrier information; The target terminal is used to receive a second message sent by the carrier determination device; The target terminal is also used to determine a target cell to be accessed.

24. The system according to claim 23, characterized in that In the case that the target uplink carrier and the target downlink carrier correspond to the same cell, the target cell is the cell corresponding to the target uplink carrier and the target downlink carrier.

25. The system according to claim 23, characterized in that In a case where the target uplink carrier and the target downlink carrier correspond to different cells, if the connection capability supported by the target terminal is uplink dual connectivity capability, the target cell is the cell corresponding to the target downlink carrier; the uplink dual connectivity capability means that the target terminal supports data transmission on two uplink carriers; If the connection capability supported by the target terminal is downlink dual connection capability, the target cell is a cell corresponding to the target uplink carrier; the downlink dual connection capability means that the target terminal supports data transmission on two downlink carriers.

26. The system according to claim 23, characterized in that In a case where the target uplink carrier and the target downlink carrier correspond to different cells, if the service type to be initiated by the target terminal is an uplink data service, the target cell is the cell corresponding to the target uplink carrier; If the service type to be initiated by the target terminal is a downlink data service, the target cell is a cell corresponding to the target downlink carrier; If the service type to be initiated by the target terminal is a voice service, the target cell is a cell corresponding to the target downlink carrier and the target uplink carrier respectively and a cell in the serving cell that supports the voice service.

27. A carrier determination device, characterized in that: include: A processor and a communication interface; the communication interface is coupled to the processor, and the processor is used to run a computer program or instruction to implement the carrier determination method as described in any one of claims 1-11.

28. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores instructions. When a computer executes the instructions, the computer executes the carrier determination method according to any one of claims 1 to 11.

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