CN110708151B - A method and device for carrier aggregation - Google Patents

Abstract

The application discloses a method and equipment for carrier aggregation, relates to the technical field of communication, and is used for quickly establishing an auxiliary cell under the condition of ensuring user information safety, reducing time delay of establishing the auxiliary cell under the condition of carrier aggregation and improving system performance. The method comprises the following steps: before the user equipment enters the safety activation mode, the user equipment sends RRC Setup Request signaling to the network side equipment, and the RRC Setup Request signaling is used for enabling the network side equipment to send the RRC Setup signaling to the user equipment. The user equipment receives the RRC Setup signaling sent by the network side equipment, generates a measurement result for measuring the signal strength of the candidate cell, adds the measurement result and the index number corresponding to the candidate cell to the RRC Setup Complete signaling, and sends the RRC Setup Complete signaling to the network side equipment. The application is applied to carrier aggregation.

Description

A method and device for carrier aggregation

technical field

The present invention relates to the field of communication technologies, and in particular, to a method and device for carrier aggregation.

Background technique

Carrier Aggregation (CA) is introduced in the LTE-Advanced system, and is a technology to increase the transmission bandwidth in order to meet the requirements of single-user peak rate and system capacity improvement. It is necessary to add a secondary cell according to a measurement result generated by measuring the signal strength of cells around a user equipment (User Equipment, UE), and cooperate with the primary cell to serve the same user.

When configuring and adding a secondary cell (Scell) using the carrier aggregation technology, the network side device usually needs to obtain the measurement result uploaded by the user equipment (User Equipment, UE), and then use the physical cell identity (PCI) recorded in the measurement result. ) and RSRP (Reference Signal Receiving Power, reference signal received power) or RSRQ (Reference Signal Receiving Quality, reference signal received quality) of each physical cell to determine whether to add a secondary cell and which physical cell to select as the secondary cell.

Currently, there are two common ways of uploading measurement reports. The first is that in the NR INACTIVE mode, security activation and context information have been pre-configured between the network-side device and the user equipment. Therefore, the network side device can send the request for obtaining the measurement report to the user equipment by carrying the request measurement report in the RRCResume signaling. Then the user equipment carries an early measurement report in the RRC Resume Complete signaling returned to feed back the measurement report to the network side device.

In the IDLE mode, however, the network side device needs to first send the Security ModeCommand signaling to the user equipment to perform security activation, and only after the security activation can the step of reporting the measurement report be performed. In this way, the establishment time of the secondary cell will be affected, and the user experience will be affected.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a method and device for carrier aggregation, which are used to quickly add secondary cells on the basis of ensuring user information security, reduce the delay in adding secondary cells under carrier aggregation, and improve system performance.

To achieve the above object, the embodiments of the present application adopt the following technical solutions:

In a first aspect, the present application provides a method for carrier aggregation. The method is applied to user equipment. The method includes: sending RRC Setup Request signaling to a network side device, and the RRC Setup Request signaling is used to make the network side device report to the user. The device sends RRC Setup signaling. Receive the RRC Setup signaling sent by the network side device, generate a measurement result for measuring the signal strength of the candidate cell, add the measurement result and the index number corresponding to the candidate cell to the RRC Setup Complete signaling, and send the RRC Setup Complete signaling order to the network side device. The index number corresponding to the candidate cell is obtained by parsing from the RRC Setup signaling. Candidate cells include base station cells around the current location of the user equipment. The RRC Setup Complete signaling is used to enable the network side device to determine the candidate cell according to the index number corresponding to the candidate cell. And make the network side equipment select the target cell that meets the requirements from the candidate cells according to the measurement result, and establish the secondary cell of the user equipment.

In a second aspect, the present application provides a method for carrier aggregation, and the method is applied to a network side device. The method includes: receiving the RRC Setup Request signaling sent by the user equipment, and in response to the RRC Setup Request signaling, sending the RRC Setup signaling to the user equipment. The RRC Setup signaling is used to enable the user equipment to generate a measurement result for measuring the signal strength of the candidate cell after receiving the RRC Setup signaling, and add the measurement result and the index number corresponding to the candidate cell to the RRC Setup Complete signaling , and send the RRCSetup Complete signaling to the network side device. The index number corresponding to the candidate cell is obtained by parsing from the RRC Setup signaling. Candidate cells include base station cells around the current user equipment location. Receive the RRC Setup Complete signaling, and after receiving the RRC Setup Complete signaling, determine the candidate cell according to the index number corresponding to the candidate cell. And according to the measurement result, a target cell that meets the requirements is selected from the candidate cells, and a secondary cell of the user equipment is established.

In a third aspect, the present application provides a user equipment. The user equipment includes: a first sending unit and a first receiving unit. The first sending unit is configured to send the RRC Setup Request signaling to the network side equipment, where the RRC Setup Request signaling is used to enable the network side equipment to send the RRC Setup signaling to the user equipment. The first receiving unit is configured to receive the RRCSetup signaling sent by the network side device after the first sending unit sends the RRC Setup Request signaling to the network side device, generate a measurement result for measuring the signal strength of the candidate cell, and measure the signal strength of the candidate cell. The result and the index number corresponding to the candidate cell are added to the RRC Setup Complete signaling. The index number corresponding to the candidate cell is obtained by parsing from the RRCSetup signaling. Candidate cells include base station cells around the current location of the user equipment. The first sending unit is further configured to send the RRC Setup Complete signaling to the network side device. The RRC Setup Complete signaling is used to enable the network side device to determine the candidate cell according to the index number corresponding to the candidate cell. And make the network side equipment select the target cell that meets the requirements from the candidate cells according to the measurement result, and establish the secondary cell of the user equipment.

In a fourth aspect, the present application provides a network side device. The network side device includes: a second receiving unit, a second sending unit and a processing unit. The second receiving unit is configured to receive the RRC Setup Request signaling sent by the user equipment. The second sending unit is configured to send the RRC Setup signaling to the user equipment in response to the RRC Setup Request signaling after receiving the RRC Setup Request signaling. The RRC Setup signaling is used to enable the user equipment to generate a measurement result for measuring the signal strength of the candidate cell after receiving the RRC Setup signaling. The measurement result and the index number corresponding to the candidate cell are added to the RRC Setup Complete signaling, and the RRC Setup Complete signaling is sent to the network side device. The index number corresponding to the candidate cell is obtained by parsing from the RRC Setup signaling. Candidate cells include base station cells around the current user equipment location. The second receiving unit is configured to receive the RRC Setup Complete signaling after the second sending unit sends the RRC Setup signaling to the user equipment. The processing unit is configured to, after the second receiving unit receives the RRCSetup Complete signaling, determine the candidate cell according to the index number corresponding to the candidate cell. And according to the measurement result, a target cell that meets the requirements is selected from the candidate cells, and a secondary cell of the user equipment is established.

In a fifth aspect, the present application provides a computer-readable storage medium corresponding to a user equipment that stores one or more programs, wherein the one or more programs include instructions, and the instructions, when executed by a computer, cause the computer to execute the carrier wave of the first aspect Aggregation method.

In a sixth aspect, the present application provides a computer-readable storage medium corresponding to a network-side device that stores one or more programs, wherein the one or more programs include instructions, and the instructions, when executed by a computer, cause the computer to execute as described in the second aspect. method of carrier aggregation.

In a seventh aspect, the present application provides a user equipment, including: a processor, a memory, and a communication interface, where the communication interface is used for communication between the user equipment and other devices or a network. The memory is used to store one or more programs, and the one or more programs include computer-executable instructions. When the user equipment runs, the processor executes the computer-executable instructions stored in the memory to perform the carrier aggregation method of the first aspect.

In an eighth aspect, the present application provides a network-side device, including: a processor, a memory, and a communication interface, where the communication interface is used for communication between the network-side device and other devices or a network. The memory is used to store one or more programs, and the one or more programs include computer-executable instructions. When the network side device runs, the processor executes the computer-executable instructions stored in the memory to perform the carrier aggregation method of the second aspect.

In a ninth aspect, the present application provides a computer program product including instructions, the program product including instructions. When the instruction runs on the user equipment, the user equipment is caused to perform the carrier aggregation method provided in the first aspect.

In a tenth aspect, the present application provides a computer program product including instructions, the program product including instructions. When the instruction is executed on the network side device, the network side device is caused to execute the carrier aggregation method provided in the second aspect above.

The carrier aggregation method and device provided by the embodiments of the present application can, before the user equipment enters the security activation mode, use the RRC Setup Request signaling, the RRC Setup signaling and the RRC Setup signaling sent between the user equipment and the network side device when entering the IDLE mode. RRC Setup Complete signaling and other signaling to complete the task of sending the measurement results of the candidate cell to the network side equipment, so as to achieve the effect of sending the measurement results of the candidate cell to the network side equipment before the user equipment enters the safe activation state, reducing The delay added by the secondary cell in the case of carrier aggregation and dual connectivity is reduced, and the performance of the system is improved to make up for the shortcomings of the prior art. In addition, in the embodiment of the present invention, the index number of the candidate cell is carried in the RRC Setup signaling, and the index number is used to identify the cell in subsequent data transmission, even if the fake base station or fake user steals the index number information, Since the corresponding relationship between the index number and the candidate cell is not known, the user's measurement information cannot be obtained, thereby ensuring the security of the information.

Description of drawings

FIG. 1 is a schematic flowchart of signaling interaction between a user equipment and a network side device according to an embodiment of the present application;

2 is a schematic flowchart of another signaling interaction between a user equipment and a network side device provided by an embodiment of the present application;

FIG. 3 is a schematic flowchart of signaling interaction between a new user equipment and a network side device according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a user equipment according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of another user equipment provided by an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a network side device according to an embodiment of the present application;

FIG. 7 is a schematic structural diagram of another network side device according to an embodiment of the present application.

Detailed ways

The following briefly introduces some concepts involved in the embodiments of the present application.

3GPP currently states "In LTE and NR scenarios, it is not allowed to send a complete idle mode measurement report before security activation." "In both LTE and NR scenarios, it is not allowed to send the RSRP/RSRQ of the idle measurement report before security activation. The PCI and associated frequencies of cells that are allowed to transmit signal quality thresholds in idle mode measurements" consensus. The user equipment is required to report the idle measurement result to the network side equipment after the security activation. Then initiate the establishment of CA.

Specifically, as shown in FIG. 1 , it is a schematic flowchart of signaling interaction between a user equipment and a network side device. Among them, including:

S101. In the IDLE mode, the user equipment sends RRC Setup Request signaling to the network side device.

S102. The user equipment receives the RRC Setup signaling sent by the network side equipment.

S103: The user equipment sends an RRC Setup Complete signaling to the network side equipment to complete the RRC establishment process.

After the RRC establishment is completed, the user equipment enters the CONNECTED mode. Then execute:

S104, the user equipment receives the Security Mode Command signaling sent by the network side device.

S105, the user equipment receives the UE Information Request signaling that carries the request measurement report information and is sent by the network side device. During the period, the request measurement report information is used to request the reporting of measurement results.

S106, the user equipment sends UEInformation Response signaling carrying early measurement report information to the network side device.

S107, the user equipment receives the RRC Reconfiguration signaling sent by the network side device.

S108, the user equipment sends the Security Mode Complete signaling to the network side device.

S109: The user equipment receives the RRC Reconfiguration Complete signaling sent by the network side equipment.

In LTE and NR scenarios, the network-side device is allowed to send UEInformation Request signaling immediately after Security Mode Command signaling, instead of waiting for Security Mode Complete signaling to be received.

It can be seen from Figure 1 that the signaling carrying the request measurement report information and the early measurement reporting information must be sent after the Security Mode Command signaling. The network side device can initiate RRC configuration signaling only after receiving the advance measurement report, and then start to establish the secondary cell for carrier aggregation and dual connectivity, and the time for establishing the secondary cell is relatively late.

In the INACTIVE mode, since the security activation has been completed, the network side can send the early measurement request message in the RRC Resume signaling to the user equipment, and the user equipment reports the early measurement report in the RRC Resume Complete signaling to the network side equipment. As shown in FIG. 2 , it is another schematic flowchart of signaling interaction between a user equipment and a network side device. Among them, including:

S201. In the INACTIVE mode, the user equipment sends RRC Setup Request signaling to the network side equipment.

S202. The user equipment receives the RRC Resume signaling that carries early measurement request information and is sent by the network side device.

S203. The user equipment sends the RRCResume Complete signaling carrying the early measurement report information to the network side device.

The user equipment enters CONNECTED mode. Then execute:

S204. The user equipment receives the RRC Reconfiguration signaling sent by the network side equipment.

S205. The user equipment sends an RRC Reconfiguration Complete signaling to the network side device.

However, according to the existing method, in IDLE mode, the advance measurement report needs to be reported after security activation, that is, the measurement report needs to be reported in CONNECTED mode, which will delay the time for establishing the CA process compared to INACTIVE.

The terminal reports the physical cell ID information. In the IDLE state, since the security activation has not been performed, the message is not encrypted. In this case, the information in the message carried by the signaling may be captured by the illegal base station. The measurement information of each neighboring cell is used to estimate the location information of the user equipment. If the base station configures the correspondence between the candidate cell and the index number before the user equipment reports the information, then the user equipment uses the index number when reporting, and only the base station that configures it knows the correspondence between the index number and the candidate cell, and can obtain the user The actual measurement information of the device, so that the problem of measurement reporting before security activation can be solved.

In this application, we propose that under the premise of ensuring the security of user information, in IDLE mode, the user equipment uploads some important information to the network side equipment in the RRC Resume Complete signaling, so that the network side equipment can know the cells that meet the requirements in advance, so that the Prepare to start the CA establishment process to reduce the establishment delay.

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

In the description of this application, unless otherwise stated, "/" means "or", for example, A/B can mean A or B. In this article, "and/or" is only an association relationship to describe the associated objects, which means that there can be three kinds of relationships, for example, A and/or B, which can mean that A exists alone, A and B exist at the same time, and B exists alone these three situations. Further, "at least one" means one or more, and "plurality" means two or more. The words "first" and "second" do not limit the quantity and execution order, and the words "first", "second" and the like do not limit certain differences.

The technical solutions provided in the embodiments of the present application can be applied to various communication systems, for example, an NR communication system using the fifth generation (5th generation, 5G) communication technology, a future evolution system, or a variety of communication fusion systems, and so on. The technical solutions provided in this application can be applied to various application scenarios, such as machine to machine (M2M), enhanced mobile broadband (eMBB), ultra-reliable and ultra-low-latency communication (ultra- reliable&low latency communication, uRLLC) and massive machine type communication (mMTC) and other scenarios.

In the embodiments of the present application, during specific implementation, the network-side device may specifically be the device responsible for carrier aggregation among various devices such as access network devices, aggregation layer devices, or core network devices, and which device specifically implements the present application. The function of the network-side device in the carrier aggregation method provided by the embodiment may be determined according to the protocol standard of the wireless communication network used, or may be appropriately adjusted by those skilled in the art in practical applications, which may not be discussed in this application. make restrictions.

Wherein, the access network device may be a base station or a base station controller for wireless communication. In this embodiment of the present application, the base station may be a global system for mobile communication (GSM), a base transceiver station (BTS) in code division multiple access (CDMA), a broadband base station (nodeB), eNB in code division multiple access (wideband code division multiple access, WCDMA), eNB in Internet of things (internet of things, IoT) or narrow band-internet of things (NB-IoT), A base station in a future 5G mobile communication network or a future evolved public land mobile network (publicland mobile network, PLMN) is not limited in this embodiment of the present application.

User equipment is used to provide voice and/or data connectivity services to users. The user equipment may have different names such as: access terminal, terminal unit, end station, mobile station, mobile station, remote station, remote terminal, mobile device, wireless communication device, vehicle user equipment, terminal agent or terminal device Wait. Optionally, the user equipment may be various handheld devices, vehicle-mounted devices, wearable devices, and computers with communication functions, which are not limited in this embodiment of the present application. For example, the handheld device may be a smartphone. The in-vehicle device may be an in-vehicle navigation system. The wearable device can be a smart bracelet. The computer may be a personal digital assistant (PDA) computer, a tablet computer, and a laptop computer.

As shown in FIG. 3, an embodiment of the present application provides a new schematic flowchart of signaling interaction between user equipment and network side equipment, and the method includes:

S301. The user equipment sends the RRC Setup Request signaling to the network side equipment, and the network side equipment receives the RRC Setup Request signaling.

The RRC Setup Request signaling is used to enable the network side device to send the RRCSetup signaling to the user equipment.

S302, the network side device sends the RRC Setup signaling to the user equipment in response to the RRC Setup Request signaling, and the user equipment receives the RRC Setup signaling.

The RRC Setup signaling is used to enable the user equipment to generate a measurement result for measuring the signal strength of the candidate cell, and add the measurement result and the index number corresponding to the candidate cell to the RRC Setup Complete signaling. The index number corresponding to the candidate cell is obtained by parsing from the RRC Setup signaling. Candidate cells include base station cells around the current location of the user equipment. The measurement result includes at least one of the following: a physical cell identity of the candidate cell, a frequency related to the physical cell identity of the candidate cell, and RSRP or RSRQ of the candidate cell.

In an implementation manner, after the network side device receives the RRC Setup Request signaling, the network side device generates an index number corresponding to each cell in the preset cell set according to the current time, and assigns each cell in the preset cell set to the index number. The corresponding index number is added to the RRC Setup signaling.

For example, after receiving the RRC Setup Request signaling at 8:15:23, the network-side device starts to generate a set of random numbers according to the current time as the index numbers corresponding to the five candidate cells around the user equipment: the index number of the candidate cell A It is 815231, the index number of the B candidate cell is 815232, the index number of the C candidate cell is 815233, the index number of the D candidate cell is 815234, and the index number of the E candidate cell is 815235. Then, the five candidate cells and their corresponding index number information are added to the RRC Setup signaling and sent to the user equipment. After receiving the RRC Setup signaling, the user equipment parses five candidate cells and their corresponding index number information from the RRC Setup signaling. Then the user equipment generates measurement results of measuring the signal strengths of the five candidate cells, and adds the measurement results and the index numbers corresponding to the candidate cells into the RRC Setup Complete signaling.

It should be noted that, in some implementation manners, those skilled in the art can also generate the index number according to other methods, for example, generate the index number of the candidate cell according to the location information, which is not limited in this application. When the index number is generated according to other methods, after the network side device receives the RRC Setup Request signaling, the content of S302 may not be executed, but the index number is generated according to other methods and the content of S303 is continuously executed.

S303. The user equipment sends the RRC Setup Complete signaling to the network side equipment, and the network side equipment receives the RRC Setup Complete signaling.

The RRC Setup Complete signaling is used to enable the network side device to determine the candidate cell according to the index number corresponding to the candidate cell. And make the network side equipment select the target cell that meets the requirements from the candidate cells according to the measurement result, and establish the secondary cell of the user equipment.

S304. The network side device sends the Security Mode Command signaling to the user equipment, and the user equipment receives the Security Mode Command signaling.

S305 , the network side device sends the RRC Reconfiguration signaling to the user equipment, and the user equipment receives the RRC Reconfiguration signaling. RRC Reconfiguration signaling carries establishment security activation information.

S306, the user equipment sends the Security Mode Complete signaling to the network side equipment, and the network side equipment receives the Security Mode Complete signaling. The Security Mode Complete signaling carries security activation completion information.

S307. The user equipment sends the RRC Reconfiguration Complete signaling to the network side equipment, and the network side equipment receives the RRC Reconfiguration Complete signaling. RRC Reconfiguration Complete signaling carries RRC reconfiguration complete information.

Before the user equipment sends the RRC Setup Request signaling to the network side equipment, the user equipment receives the RRC Release signaling sent by the network side equipment, and the RRC Release signaling carries early measurementconfiguration information. The early measurement configuration information is used to enable the user equipment to start measuring the signal strength of the candidate cell.

This embodiment of the present application can complete the process through signaling such as RRC Setup Request signaling, RRC Setup signaling, and RRC SetupComplete signaling sent between the user equipment and the network side device when the user equipment enters the IDLE mode before the user equipment enters the security activation mode. The task of sending the measurement result of the candidate cell to the network side equipment, so as to realize the effect of sending the measurement result of the candidate cell to the network side equipment before the user equipment enters the safe activation state, and reduce the auxiliary equipment in the case of carrier aggregation and dual connectivity. The time delay added by the cell improves the performance of the system to make up for the shortcomings of the prior art.

The embodiments of the present application further provide a device for carrier aggregation, which is used to implement the relevant functions of the user equipment in the method for carrier aggregation provided by the above embodiments. Specifically, as shown in FIG. 4 , it is a schematic structural diagram of a user equipment according to an embodiment of the present application. The user equipment 40 includes a first sending unit 401 and a first receiving unit 402 . in:

The first sending unit 401 is configured to send the RRC Setup Request signaling to the network side equipment, where the RRC Setup Request signaling is used to enable the network side equipment to send the RRC Setup signaling to the user equipment.

The first receiving unit 402 is configured to receive the RRC Setup signaling sent by the network side device, where the RRC Setup signaling is used to enable the user equipment to generate a measurement result for measuring the signal strength of the candidate cell. The user equipment adds the measurement result and the index number corresponding to the candidate cell to the RRC Setup Complete signaling. The measurement result includes at least one of the following: a physical cell identity of the candidate cell, a frequency related to the physical cell identity of the candidate cell, and RSRP or RSRQ of the candidate cell.

The index number corresponding to the candidate cell is obtained by parsing from the RRC Setup signaling. Candidate cells include base station cells around the current location of the user equipment.

The first sending unit 401 is further configured to send the RRC SetupComplete signaling carrying essential information information to the network side device, where the essential information information is the measurement result of the signal strength of the candidate cell generated by the user equipment and the index corresponding to the measurement result and the candidate cell No. The RRC Setup Complete signaling is used to enable the network side device to determine the candidate cell according to the index number corresponding to the candidate cell. And make the network side equipment select the target cell that meets the requirements from the candidate cells according to the measurement result, and establish the secondary cell of the user equipment.

The first receiving unit 402 is further configured to receive the Security Mode Command signaling sent by the network side device.

The first receiving unit 402 is further configured to receive the RRC Reconfiguration signaling sent by the network side device.

The first sending unit 401 is further configured to send the Security Mode Complete signaling to the network side device.

The first sending unit 401 is further configured to send the RRC Reconfiguration Complete signaling to the network side device.

The first sending unit 401 and the first receiving unit 402 are further configured to receive the RRC Release signaling sent by the network side device before the first sending unit 401 sends the RRC SetupRequest signaling to the network side device, the RRC Release signaling. The signaling carries early measurement configuration information. The earlymeasurement configuration information is used to enable the user equipment to start measuring the signal strength of the candidate cell.

From the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above functional units is used as an example for illustration. In practical applications, the above functions can be allocated as required. It is completed by different functional units, that is, the internal structure of the device is divided into different functional units to complete all or part of the functions described above. For the specific working process of the above-described method, apparatus and unit, reference may be made to the corresponding process in the foregoing method embodiments, and details are not described herein again.

In another embodiment, as shown in FIG. 5 , it is a schematic structural diagram of another user equipment provided in this embodiment of the present application. The user equipment includes: a processor 501 , a memory 502 , a communication interface 503 and a bus 504 . The communication interface 503 is used for communication between the user equipment and other equipment or the network, and the memory 502 is used for storing one or more programs. The one or more programs include computer-executable instructions. The processor 501 executes the computer-executable instructions stored in the memory 502, so that the user equipment executes the method for carrier aggregation in the foregoing embodiments.

The above-mentioned processor 501 may implement or execute various exemplary logical blocks, units and circuits described in conjunction with the disclosure of the present application. The processor 501 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. It may implement or execute the various exemplary logical blocks, units and circuits described in connection with this disclosure. The processor 501 may also be a combination for realizing computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

Memory 502 may include volatile memory, such as random access memory. The memory 502 may also include non-volatile memory such as read only memory, flash memory, hard disk or solid state disk. Memory 502 includes a combination of the types of memory described above.

The bus 504 may be an Extended Industry Standard Architecture (Extended Industry Standard Architecture, EISA) bus or the like. The bus 504 can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, FIG. 5 is represented by only one thick line, but does not represent that there is only one bus or one type of bus.

From the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above functional units is used as an example for illustration. In practical applications, the above functions can be allocated as required. It is completed by different functional units, that is, the internal structure of the device is divided into different functional units to complete all or part of the functions described above. For the specific working process of the above-described method, apparatus and unit, reference may be made to the corresponding process in the foregoing method embodiments, and details are not described herein again.

In another embodiment, the present application further provides a computer-readable storage medium, where an instruction is stored in the computer-readable storage medium. When the computer executes the instruction, the computer executes the method flow shown in the above method embodiment. The various steps performed by the user equipment.

The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, or any combination of the above. More specific examples (non-exhaustive list) of computer-readable storage media include: electrical connections having one or more wires, portable computer disks, hard disks. Random Access Memory (RAM), Read-Only Memory (ROM), Erasable Programmable Read Only Memory (EPROM), Register, Hard Disk, Optical Fiber, Portable Compact Disk Read-Only Memory (Compact Disc Read-Only Memory, CD-ROM), optical storage device, magnetic storage device, or any other form of computer-readable storage medium of the above in suitable combination, or valued in the art. An exemplary storage medium is coupled to the processor, such that the processor can read information from, and write information to, the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium may be located in an Application Specific Integrated Circuit (ASIC). In the embodiments of the present application, the computer-readable storage medium may be any tangible medium containing or storing a program, and the program may be used by or in combination with an instruction execution system, apparatus, or device.

In another embodiment, the present application further provides a computer program product, which when the instructions are executed on the user equipment, causes the user equipment to perform the steps performed by the user equipment in the method for carrier aggregation as shown in FIG. 3 .

The embodiment of the present application further provides a carrier aggregation device, which is used to implement the related functions of the network side device in the carrier aggregation method provided by the above embodiment. Specifically, as shown in FIG. 6 , it is a schematic structural diagram of a network side device according to an embodiment of the present application. The network-side device 60 includes a second sending unit 601 , a second receiving unit 602 , and a processing unit 603 . in:

The second receiving unit 602 is configured to receive the RRC Setup Request signaling sent by the user equipment, where the RRC Setup Request signaling is used to send the RRC Setup signaling to the user equipment.

The second sending unit 601 is configured to send RRC Setup signaling to the user equipment, where the RRC Setup signaling is used to enable the user equipment to generate a measurement result for measuring the signal strength of the candidate cell. The measurement result includes at least one of the following: a physical cell identity of the candidate cell, a frequency related to the physical cell identity of the candidate cell, and RSRP or RSRQ of the candidate cell.

The second receiving unit 602 is further configured to receive the RRC Setup Complete signaling that is sent by the user equipment and carries essential information, where the essential information is the measurement result of the signal strength of the candidate cell generated by the user equipment and the measurement result corresponding to the candidate cell. The index number.

The processing unit 603 is configured to, after the second receiving unit 602 receives the RRC Setup Complete signaling, determine the candidate cell according to the index number corresponding to the candidate cell. And according to the measurement result, a target cell that meets the requirements is selected from the candidate cells, and a secondary cell of the user equipment is established.

The second sending unit 601 is further configured to send Security Mode Command signaling to the user equipment.

The second sending unit 601 is further configured to send RRC Reconfiguration signaling to the user equipment.

The second receiving unit 602 is further configured to receive the Security Mode Complete signaling sent by the user equipment.

The second receiving unit 602 is further configured to receive the RRC Reconfiguration Complete signaling sent by the user equipment.

The processing unit 603 is further configured to, after the second receiving unit 602 receives the RRC Setup Request signaling, generate an index number corresponding to each cell in the preset cell set according to the current time, and assign the index number corresponding to each cell in the preset cell set. The corresponding index number is added to the RRC Setup signaling. Wherein, the preset cell set includes candidate cells.

From the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above functional units is used as an example for illustration. In practical applications, the above functions can be allocated as required. It is completed by different functional units, that is, the internal structure of the device is divided into different functional units to complete all or part of the functions described above. For the specific working process of the above-described method, apparatus and unit, reference may be made to the corresponding process in the foregoing method embodiments, and details are not described herein again.

In another embodiment, as shown in FIG. 7 , it is a schematic structural diagram of another network side device provided in this embodiment of the present application. The network side device includes: a processor 701 , a memory 702 and a communication interface 703 . Wherein, the communication interface 703 is used for the network side device to communicate with other devices or the network, and the memory is used for storing one or more programs. The one or more programs include computer-executable instructions, and when the network-side device runs, the processor executes the computer-executable instructions stored in the memory, so that the network-side device executes the carrier aggregation method in the foregoing embodiment.

The above-mentioned processor 701 may implement or execute various exemplary logical blocks, units and circuits described in conjunction with the disclosure of the present application. The processor 701 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. It may implement or execute the various exemplary logical blocks, units and circuits described in connection with this disclosure. The processor 701 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.

Memory 702 may include volatile memory, such as random access memory. The memory 702 may also include non-volatile memory such as read only memory, flash memory, hard disk or solid state disk. Memory 702 includes a combination of the types of memory described above.

The bus 704 may be an Extended Industry Standard Architecture (EISA) bus or the like. The bus 704 can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, Figure 7 is shown with only one thick line, but does not mean that there is only one bus or one type of bus.

From the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above functional units is used as an example for illustration. In practical applications, the above functions can be allocated as required. It is completed by different functional units, that is, the internal structure of the device is divided into different functional units to complete all or part of the functions described above. For the specific working process of the above-described method, apparatus and unit, reference may be made to the corresponding process in the foregoing method embodiments, and details are not described herein again.

In another embodiment, the present application further provides a computer-readable storage medium, where an instruction is stored in the computer-readable storage medium. When the computer executes the instruction, the computer executes the method flow shown in the above method embodiment. Each step performed by the network side device.

The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, or any combination of the above. More specific examples (non-exhaustive list) of computer-readable storage media include: electrical connections having one or more wires, portable computer disks, hard disks. Random Access Memory (RAM), Read-Only Memory (ROM), Erasable Programmable Read Only Memory (EPROM), Register, Hard Disk, Optical Fiber, Portable Compact Disk Read-Only Memory (Compact Disc Read-Only Memory, CD-ROM), optical storage device, magnetic storage device, or any other form of computer-readable storage medium of the above in suitable combination, or valued in the art. An exemplary storage medium is coupled to the processor, such that the processor can read information from, and write information to, the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium may be located in an Application Specific Integrated Circuit (ASIC). In the embodiments of the present application, the computer-readable storage medium may be any tangible medium containing or storing a program, and the program may be used by or in combination with an instruction execution system, apparatus, or device.

In another embodiment, the present application further provides a computer program product, when the instruction runs on the network side device, the network side device causes the network side device to perform the carrier aggregation method as shown in FIG. 3 , which is executed by the network side device. A step of.

Since the carrier aggregation method and device, computer-readable storage medium, and computer program product in the embodiments of the present invention can be applied to the above methods, the technical effects that can be obtained may also refer to the above method embodiments, and the present invention implements The example will not be repeated here.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed in the present application shall be covered within the protection scope of the present application. .

In the several embodiments provided in this application, it should be understood that the disclosed method and device may be implemented in other manners. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

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

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 alone, or two or more units may be integrated into one unit.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center The transmission is carried out to another website site, computer, server or data center by wire (eg coaxial cable, optical fiber, Digital Subscriber Line, DSL) or wireless (eg infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or data storage devices including one or more servers, data centers, etc. that can be integrated with the medium. The usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), and the like.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims (14)

1. A method for carrier aggregation, applied to user equipment, wherein the method comprises: sending RRC Setup Request signaling to the network side device, where the RRC Setup Request signaling is used to enable the network side device to send the RRC Setup signaling to the user equipment; Receive the RRC Setup signaling sent by the network side device, generate a measurement result for measuring the signal strength of the candidate cell, and add the measurement result and the index number corresponding to the candidate cell to the RRC SetupComplete signaling, and sending the RRC Setup Complete signaling to the network side device; Wherein, the index number corresponding to the candidate cell is obtained by parsing from the RRC Setup signaling; the candidate cell includes base station cells around the current location of the user equipment; The RRC Setup Complete signaling is used to enable the network side device to determine the candidate cell according to the index number corresponding to the candidate cell; and to enable the network side device to determine the candidate cell from the candidate cell according to the measurement result. Select a target cell that meets the requirements, and establish a secondary cell of the user equipment. 2. The method for carrier aggregation according to claim 1, wherein the method further comprises: Before the user equipment sends the RRC Setup Request signaling to the network-side device, the user equipment receives the RRC Release signaling sent by the network-side device, where the RRC Release signaling carries earlymeasurement configuration information ; The early measurement configuration information is used to enable the user equipment to start measuring the signal strength of the candidate cell. 3. A method for carrier aggregation, applied to a network side device, wherein the method comprises: Receive the RRC Setup Request signaling sent by the user equipment; In response to the RRC Setup Request signaling, send the RRC Setup signaling to the user equipment; the RRC Setup signaling is used to enable the user equipment to generate a signal to the candidate cell after receiving the RRC Setup signaling measuring the strength of the measurement result, adding the measurement result and the index number corresponding to the candidate cell to the RRCSetup Complete signaling, and sending the RRC Setup Complete signaling to the network side device; Wherein, the index number corresponding to the candidate cell is obtained by parsing from the RRC Setup signaling; the candidate cell includes the base station cells around the location of the current user equipment; receiving the RRC Setup Complete signaling; After receiving the RRC Setup Complete signaling, the candidate cell is determined according to the index number corresponding to the candidate cell; and according to the measurement result, a target cell that meets the requirements is selected from the candidate cells, and the user is established The secondary cell of the device. 4. The method for carrier aggregation according to claim 3, wherein the method further comprises: After receiving the RRC Setup Request signaling, the network side device generates an index number corresponding to each cell in the preset cell set according to the current time, and converts the index corresponding to each cell in the preset cell set. The number is added to the RRC Setup signaling; wherein, the preset cell set includes the candidate cell. 5. The method for carrier aggregation according to claim 3, wherein the method further comprises: The measurement result includes at least one of the following: a physical cell identity of the candidate cell, a frequency related to the physical cell identity of the candidate cell, and RSRP or RSRQ of the candidate cell. 6. A user equipment, characterized in that the device comprises: a first sending unit and a first receiving unit; The first sending unit is configured to send the RRC Setup Request signaling to the network side device, where the RRC SetupRequest signaling is used to enable the network side device to send the RRC Setup signaling to the user equipment; The first receiving unit is configured to, after the first sending unit sends the RRC Setup Request signaling to the network side device, receive the RRC Setup signaling sent by the network side device, and generate and measure the signal strength of the candidate cell and adding the measurement result and the index number corresponding to the candidate cell to the RRC SetupComplete signaling; Wherein, the index number corresponding to the candidate cell is obtained by parsing from the RRC Setup signaling; the candidate cell includes base station cells around the current location of the user equipment; The first sending unit is further configured to send the RRC Setup Complete signaling to the network side device; wherein, the RRC Setup Complete signaling is used to make the network side device according to the corresponding candidate cell. The index number is used to determine the candidate cell; and the network side device is made to select a target cell that meets the requirements from the candidate cells according to the measurement result, and establishes the secondary cell of the user equipment. 7. The user equipment according to claim 6, wherein, The first receiving unit is further configured to receive the RRC Release signaling sent by the network side device before the first sending unit sends the RRC Setup Request signaling to the network side device, the RRC Release signaling The signaling carries early measurement configuration information; The early measurement configuration information is used to enable the user equipment to start measuring the signal strength of the candidate cell. 8. A network-side device, wherein the network-side device comprises: a second receiving unit, a second sending unit, and a processing unit; the second receiving unit, configured to receive the RRC Setup Request signaling sent by the user equipment; The second sending unit is configured to, after receiving the RRC Setup Request signaling, in response to the RRC Setup Request signaling, send the RRC Setup signaling to the user equipment; the RRC Setup signaling is used to make the RRC Setup signaling The user equipment generates a measurement result of measuring the signal strength of the candidate cell after receiving the RRC Setup signaling, and adds the measurement result and the index number corresponding to the candidate cell to the RRC Setup Complete signaling, and send the RRC Setup Complete signaling to the network side device; wherein, the index number corresponding to the candidate cell is obtained by parsing from the RRC Setup signaling; the candidate cell includes the location of the current user equipment surrounding base station cells; the second receiving unit, configured to receive the RRC Setup Complete signaling after the second sending unit sends the RRC Setup signaling to the user equipment; The processing unit is configured to, after the second receiving unit receives the RRC Setup Complete signaling, determine the candidate cell according to the index number corresponding to the candidate cell; A target cell that meets the requirements is selected from the candidate cells, and a secondary cell of the user equipment is established. 9. The network side device according to claim 8, wherein, The processing unit is further configured to, after the second receiving unit receives the RRC Setup Request signaling, generate an index number corresponding to each cell in the preset cell set according to the current time, and assign the preset cell to the index number. The index number corresponding to each cell in the set is added to the RRC Setup signaling; wherein the preset cell set includes the candidate cell. 10. The network side device according to claim 8, wherein the network side device further comprises: The measurement result includes at least one of the following: a physical cell identity of the candidate cell, a frequency related to the physical cell identity of the candidate cell, and RSRP or RSRQ of the candidate cell. 11. A user equipment, comprising: a processor, a memory and a communication interface; wherein, the communication interface is used for the user equipment to communicate with other devices or a network; the memory is used for storing one or more programs, The one or more programs include computer-executable instructions that, when the user equipment runs, the processor executes the computer-executable instructions stored in the memory to cause the user equipment to perform any one of claims 1-2 The carrier aggregation method. 12. A network-side device, comprising: a processor, a memory, and a communication interface; wherein, the communication interface is used for the network-side device to communicate with other devices or a network; the memory is used to store one or more A program, the one or more programs include computer-executable instructions, and when the network-side device runs, the processor executes the computer-executable instructions stored in the memory, so that the network-side device executes claims 3- The method for carrier aggregation according to any one of 5. 13. A computer-readable storage medium storing one or more programs corresponding to a user equipment, wherein the one or more programs comprise instructions, and the instructions, when executed by a computer, cause the computer to execute as claimed in the right The method for carrier aggregation described in any one of requirements 1-2. 14. A computer-readable storage medium storing one or more programs corresponding to a network-side device, wherein the one or more programs include instructions, and the instructions, when executed by a computer, cause the computer to execute as follows: The method for carrier aggregation according to any one of claims 3-5.

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