WO2018205387A1

WO2018205387A1 - Secondary cell configuration method, base station and terminal device

Info

Publication number: WO2018205387A1
Application number: PCT/CN2017/091173
Authority: WO
Inventors: 李国荣; 张莉莉
Original assignee: 华为技术有限公司
Priority date: 2017-05-12
Filing date: 2017-06-30
Publication date: 2018-11-15
Also published as: CN110521157A

Abstract

A secondary cell configuration method, a base station and a terminal device, which are used for improving the utilization rate of a secondary cell. The method comprises: a first base station corresponding to a primary cell of a terminal device sending, to the terminal device, a first message instructing the terminal device to convert from an RRC connection state to an idle state or an INACTIVE state, wherein the first message carries measurement configuration information, which is used for instructing the terminal device to carry out channel quality measurement on a plurality of carrier frequencies; the terminal device converting from the RRC connection state to the idle state or the INACTIVE state, and carrying out channel quality measurement on the plurality of carrier frequencies so as to screen out N candidate cells, where N ≥ 1; when converting from the idle state or the INACTIVE state to the RRC connection state, the terminal device sending a second message carrying a measurement report to the first base station, wherein the measurement report contains indication information about the N candidate cells; and the first base station sending a third message comprising secondary cell configuration information to the terminal device according to the measurement report.

Description

Secondary cell configuration method, base station and terminal device

The present application claims the priority of the Chinese Patent Application, which is filed on May 12, 2017, with the application number No. 201710335265.0, entitled "A Carrier Measurement Configuration Method and Apparatus", the entire contents of which are incorporated herein by reference. in.

Technical field

The present application relates to the field of communications technologies, and in particular, to a secondary cell configuration method, a base station, and a terminal device.

Background technique

With the development of communication technologies, communication systems are increasingly demanding transmission bandwidth. In order to support a large transmission bandwidth, the prior art proposes the concept of carrier aggregation (CA), which is to aggregate two or more component carriers (CCs) to support a larger transmission bandwidth. . Each CC corresponds to one cell.

After the carrier aggregation scheme is adopted, the terminal device can perform data transmission and reception operations through multiple cells at the same time. The plurality of cells include a primary cell (PCell) and a secondary cell (SCell). That is to say, the terminal device can perform data transmission and reception through the primary cell and the secondary cell at the same time, thereby improving data transmission and reception efficiency.

In the prior art, the PCell is determined when the terminal device establishes an initial Radio Resource Control (RRC) connection with the base station, and the SCell is the RRC connection reconfiguration message by the base station corresponding to the PCell after the initial security activation process. RRC Connection Reconfiguration) is configured for the terminal device. The process of configuring the SCell may be as shown in FIG. 1. After the terminal device enters the connected state, the base station of the primary cell sends measurement configuration information to the terminal device by using an RRC connection reconfiguration message, where the measurement configuration information includes multiple carrier frequencies. After performing channel quality measurement on the measurement signals received at the multiple carrier frequencies, the terminal device reports the candidate cells corresponding to the measurement signals with better channel quality to the base station. The base station configures at least one candidate cell in the candidate cell reported by the terminal device as the SCell of the terminal device.

In the above method, since the process of the channel quality measurement by the terminal device in the connected state takes too long, it takes a long time to obtain the configuration of the SCell after the terminal device enters the connected state, resulting in the terminal device entering the connected state. The SCell cannot be used for data transmission and reception for a long time, which reduces the utilization of SCell.

In the prior art SCell configuration method, there is a problem that the utilization rate of the SCell is low.

Summary of the invention

The embodiment of the present application provides a secondary cell configuration method, a base station, and a terminal device, which are used to improve the utilization of the SCell.

In a first aspect, an embodiment of the present application provides a secondary cell configuration method, where the method includes the following steps:

The first base station sends a first message to the terminal device, where the first message is used to indicate that the terminal device is switched from the RRC connected state to the idle state or the INACTIVE state, where the first message carries measurement configuration information, and the measurement configuration information includes multiple carrier frequencies. The measurement configuration information is used to indicate that the terminal device performs channel quality measurement on multiple carrier frequencies, and the first base station is a base station corresponding to the primary cell of the terminal device. The first base station receives the second message that is sent by the terminal device after being converted from the idle state or the INACTIVE state to the RRC connected state, where the second message carries the measurement report, and the measurement report includes the terminal device pair. The indication information of the N candidate cells after the channel quality measurement is performed on the multiple carrier frequencies, N≥1. The first base station sends a third message to the terminal device according to the measurement report, where the third message includes the secondary cell configuration information of the terminal device.

Through the foregoing method, when the terminal device is in the RRC connected state, the first message is sent to the terminal device by the first base station, indicating that the terminal device is switched from the RRC connected state to the idle state or the INACTIVE state, and the measurement configuration information in the first message is passed. Instructing the terminal device to perform channel quality measurement on the multiple carrier frequencies in the idle state or the INACTIVE state according to the indication of the measurement configuration information, and reporting the measurement report to the first base station after the terminal device enters the RRC connected state again, for the subsequent first The base station can quickly configure the secondary cell for the terminal device. After the terminal device enters the RRC connected state again, the first base station can receive the measurement report sent by the terminal device, and the first base station can send the third message in a shorter time to configure the secondary cell for the terminal device. Compared with the solution that the terminal device performs channel quality measurement in the RRC connection state in the prior art, after the terminal device enters the RRC connection state again, it is not necessary to take a long time to perform channel quality measurement, so that the first base station can be configured for the terminal device. The process of the secondary cell. Therefore, compared with the prior art, by using the foregoing method, the terminal device can complete the secondary cell configuration in a short time after re-entering the RRC connected state, thereby improving the utilization rate of the secondary cell.

In a possible design, the multiple carrier frequencies include a carrier frequency under the first base station and/or a carrier frequency under the second base station, the second base station is a base station adjacent to the first base station; Before the device sends the first message, the method further includes: receiving, by the first base station, a fourth message sent by the second base station or the core network, where the fourth message is used to indicate a carrier frequency under the second base station.

Through the above method, the first base station can acquire the carrier frequency under the second base station. If the terminal device moves faster in the idle state or the INACTIVE state, and the terminal device enters the coverage of the second base station after entering the RRC connected state, the terminal device has performed the carrier frequency under the second base station by using the foregoing method. Channel quality measurement, after the terminal device enters the coverage of the second base station, the second base station may also configure the secondary cell for the terminal device based on the channel quality measurement result of the terminal device.

In a possible design, the N candidate cells are candidate cells under the first base station and/or candidate cells under the second base station.

Through the foregoing method, the terminal device can select which candidate cells are reported according to different scenarios and different indications of the first base station.

In a possible design, before the first base station sends the first message to the terminal device, the method further includes: the first base station receiving the first indication message sent by the terminal device, where the first indication message is used to indicate that the terminal device is in the idle state Or the ability of the INACTIVE state to perform channel quality measurements.

Through the foregoing method, the first base station can know in advance whether the terminal device has the capability of performing channel quality measurement in the idle state or the INACTIVE state, thereby helping the first base station to determine whether it is necessary to send the first message to the terminal device, and avoiding the first base station to the terminal device. The first message is sent and the terminal device does not have the signaling overhead caused by performing channel quality measurement capability in the idle state or the INACTIVE state.

In a possible design, before the first base station sends the first message to the terminal device, the method further includes: receiving, by the first base station, a second indication message sent by the core network, where the second indication message is used to indicate a service mode of the terminal device / or packet interval.

After acquiring the service model and/or the data packet interval of the terminal device, the first base station may determine, according to the service model and/or the data packet interval of the terminal device, a time for the terminal device to start channel quality measurement on multiple carrier frequencies, and The measurement time is transmitted to the terminal device in the first message as part of the measurement configuration information, thereby enabling the terminal device to acquire the time at which the channel quality measurement is started.

In a possible design, after the first base station receives the second message that is reported by the terminal device after being converted from the idle state or the INACTIVE state to the RRC connected state, the method further includes: receiving, by the first base station, the fifth message sent by the terminal device, The fifth message is used to indicate that the measurement report has been generated; the first base station sends a sixth message to the terminal device, where the sixth message is used to instruct the terminal device to report the measurement report. Through the above method, the terminal device can report the measurement report based on the indication of the first base station.

In a possible design, the sixth message is further used to indicate that the measurement report reported by the terminal device includes indication information of a part of the candidate cells in the N candidate cells. Through the foregoing method, the first base station may indicate, according to its own requirements, which carrier frequencies (for example, a carrier frequency with a lower load, a carrier frequency under the first base station, and the like) reported by the terminal device.

In one possible design, the measurement configuration information also includes one or more of the following information:

a threshold for indicating a channel quality of a candidate cell reported by the physical layer of the terminal device to the RRC layer of the terminal device;

a trigger threshold for indicating a threshold of channel quality of the N candidate cells;

The measurement time is used to indicate the start time of the channel quality measurement by the terminal device for multiple carrier frequencies.

In a second aspect, the embodiment of the present application provides a secondary cell configuration method, where the method includes the following steps:

The terminal device receives the first message sent by the first base station, where the first message is used to indicate that the terminal device is switched from the RRC connected state to the idle state or the INACTIVE state, where the first message carries measurement configuration information, and the measurement configuration information includes multiple carrier frequencies. The measurement configuration information is used to indicate that the terminal device performs channel quality measurement on multiple carrier frequencies, where the first base station is a base station corresponding to the primary cell of the terminal device, and the terminal device is converted from the RRC connected state to the idle state or the INACTIVE state according to the first message. And performing channel quality measurement on the plurality of carrier frequencies according to the measurement configuration information to filter out N candidate cells; and the terminal device sends the second message to the first base station when converting from the idle state or the INACTIVE state to the RRC connected state, and second The message carries a measurement report, and the measurement report includes indication information of the N candidate cells, where N≥1; the terminal device receives the third message sent by the first base station, and the third message includes the secondary cell configuration information of the terminal device.

In a possible design, the multiple carrier frequencies include a carrier frequency under the first base station and/or a carrier frequency under the second base station, and the second base station is a base station adjacent to the first base station.

In a possible design, before the receiving, by the terminal device, the first message sent by the first base station, the method further includes: a first indication message sent by the terminal device to the first base station, where the first indication message is used to indicate that the terminal device is in the idle state. State or INACTIVE state The ability to measure channel quality.

In a possible design, before the terminal device sends the second message to the first base station, the method further includes: the terminal device sends a fifth message to the first base station, where the fifth message is used to indicate that the measurement report has been generated; The sixth message sent by the base station is used to instruct the terminal device to report the measurement report.

Through the above method, the terminal device can report the measurement report based on the indication of the first base station.

In a possible design, the sixth message is further used to indicate that the measurement report reported by the terminal device includes indication information of a part of the candidate cells in the N candidate cells.

Through the foregoing method, the first base station may indicate, according to its own requirements, which carrier frequencies (for example, a carrier frequency with a lower load, a carrier frequency under the first base station, and the like) reported by the terminal device.

In a possible design, the measurement configuration information further includes one or more of the following information: a filtering threshold, which is used to indicate a threshold of a channel quality of a candidate cell reported by the physical layer of the terminal device to the RRC layer of the terminal device; The trigger threshold is used to indicate a threshold of channel quality of the N candidate cells, and the measurement time is used to indicate a start time of the channel quality measurement by the terminal device for multiple carrier frequencies.

In a third aspect, the embodiment of the present application provides a method for configuring a secondary cell, where the method includes the following steps: a first base station corresponding to a primary cell sends a first message to a terminal device that is in an idle state or an INACTIVE state after accessing the primary cell, where A message carries measurement configuration information, where the measurement configuration information includes multiple carrier frequencies, and the measurement configuration information is used to indicate that the terminal device performs channel quality measurement on multiple carrier frequencies. The first base station receives a second message that is reported by the terminal device after being converted from the idle state or the INACTIVE state to the RRC connected state, where the second message carries the measurement report, where the measurement report includes the channel device that performs channel quality measurement on the plurality of carrier frequencies. The indication information of the N candidate cells, N≥1. The first base station sends a third message to the terminal device according to the measurement report, where the third message includes the secondary cell configuration information of the terminal device.

Through the foregoing method, when the terminal device enters the primary cell and remains in the idle state or the INACTIVE state, the first message is sent to indicate that the terminal device performs channel quality measurement on multiple carrier frequencies according to the measurement configuration information in the first message, and After the terminal device enters the RRC connection state, the measurement report is reported to the first base station, so that the first base station can quickly configure the secondary cell for the terminal device. Since the first base station can receive the measurement report sent by the terminal device after the terminal device enters the RRC connected state, the first base station can configure the secondary cell for the terminal device in a shorter time. Compared with the solution that the terminal device performs channel quality measurement in the RRC connection state in the prior art, after the terminal device enters the RRC connection state again, it is not necessary to take a long time to perform channel quality measurement, so that the first base station can be configured for the terminal device. The process of the secondary cell. Therefore, compared with the prior art, by using the foregoing method, the terminal device can complete the secondary cell configuration in a short time after entering the RRC connected state, thereby improving the utilization rate of the secondary cell.

In a possible design, the multiple carrier frequencies include a carrier frequency under the first base station and/or a carrier frequency under the second base station, and the second base station is a base station adjacent to the first base station; Before the base station sends the first message to the terminal device in the idle state or the INACTIVE state after accessing the primary cell, the method further includes: receiving, by the first base station, a fourth message sent by the second base station or the core network, where the fourth message is used to indicate the second message Carrier frequency under the base station.

In a possible design, before the first base station receives the second message that is reported after the terminal device is switched from the idle state or the INACTIVE state to the RRC connected state, the method further includes: receiving, by the first base station, the fifth message sent by the terminal device, where The fifth message is used to indicate that the measurement report has been generated. The first base station sends a sixth message to the terminal device, where the sixth message is used to instruct the terminal device to report the measurement report.

In a possible design, the measurement configuration information further includes one or more of the following information: a filtering threshold, which is used to indicate a threshold of a channel quality of a candidate cell reported by the physical layer of the terminal device to the RRC layer of the terminal device; A trigger threshold for indicating a threshold of channel quality of the N candidate cells.

In a fourth aspect, the embodiment of the present application provides a method for configuring a secondary cell, where the method includes the following steps: a terminal device that is in an idle state or an INACTIVE state after accessing a primary cell receives a first message sent by a first base station corresponding to a primary cell, The first message carries measurement configuration information, where the measurement configuration information includes multiple carrier frequencies, and the measurement configuration information is used to indicate that the terminal device performs channel quality measurement on multiple carrier frequencies. The terminal device performs channel quality measurement on multiple carrier frequencies according to the measurement configuration information to filter out N candidate cells. The second device sends a second message to the first base station when the state is switched from the idle state or the INACTIVE state to the RRC connected state. The second message carries a measurement report, where the measurement report includes indication information of the N candidate cells, where N≥1. The terminal device receives the third message sent by the first base station, where the third message includes the secondary cell configuration information of the terminal device.

Through the foregoing method, when the terminal device enters the primary cell and remains in the idle state or the INACTIVE state, the first message is sent to indicate that the terminal device performs channel quality measurement on multiple carrier frequencies according to the measurement configuration information in the first message, and After the terminal device enters the RRC connection state, the measurement report is reported to the first base station, so that the first base station can quickly configure the secondary cell for the terminal device. Since the first base station can receive the measurement report sent by the terminal device after the terminal device enters the RRC connected state, the first base station can configure the secondary cell for the terminal device in a shorter time. Compared with the solution that the terminal device performs channel quality measurement in the RRC connection state in the prior art, after the terminal device enters the RRC connected state again, it is not necessary to take a long time to perform channel quality measurement again, so that the first base station can be implemented. The process of the terminal device configuring the secondary cell. Therefore, compared with the prior art, by using the foregoing method, the terminal device can complete the secondary cell configuration in a short time after entering the RRC connected state, thereby improving the utilization rate of the secondary cell.

Through the above method, if the terminal device moves faster in the idle state or the INACTIVE state, and the terminal device enters the coverage of the second base station after entering the RRC connected state, then, by using the above method, the terminal device has already been under the second base station. The carrier frequency is measured by the channel quality. After the terminal device enters the coverage of the second base station, the second base station may also configure the secondary cell for the terminal device based on the channel quality measurement result of the terminal device.

In a possible design, before the terminal device performs channel quality measurement on the multiple carrier frequencies according to the measurement configuration information, the method further includes: the terminal device determines that it has the capability of performing channel quality measurement in the idle state or the INACTIVE state.

Through the above method, the terminal device can determine whether it is necessary to perform channel quality measurement according to its own capabilities.

In a fifth aspect, the embodiment of the present application further provides a first base station, where the first base station has a function of implementing the behavior of the first base station in the secondary cell configuration method provided by the foregoing first aspect and/or the third aspect. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a possible design, the structure of the first base station includes a sending unit and a receiving unit, and the units may perform the functions of the corresponding behavior in the secondary cell configuration method provided by the first aspect and/or the third aspect. The detailed description in the first aspect and/or the secondary cell configuration method provided by the third aspect is not described herein.

In a possible design, the structure of the first base station includes a transmitter, a receiver, a processor, and a memory, where the transmitter and the receiver are used for communication interaction with a terminal device, and the processor is configured to The first base station is supported to perform the corresponding function in the secondary cell configuration method provided by the above first aspect and/or the third aspect. The memory is coupled to the processor, which stores program instructions and data necessary for the first base station.

In a sixth aspect, the embodiment of the present application further provides a terminal device, where the terminal device has the function of implementing the behavior of the terminal device in the example of the secondary cell configuration method provided by the foregoing second aspect and/or the fourth aspect. The function can be through hardware Implementation, you can also implement the corresponding software implementation through hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a possible design, the structure of the terminal device includes a sending unit, a receiving unit, and a processing unit, and the units may perform corresponding functions in the secondary cell configuration method example provided by the foregoing second aspect and/or the fourth aspect. For details, refer to the detailed description in the example of the secondary cell configuration method provided by the second aspect and/or the fourth aspect, and details are not described herein.

In a possible design, the structure of the terminal device includes a transmitter, a receiver, a processor, and a memory, where the transmitter and the receiver are used for communication interaction with the first base station, and the processor is configured to The supporting terminal device performs the corresponding function in the secondary cell configuration method provided by the above second aspect and/or the fourth aspect. The memory is coupled to the processor, which stores program instructions and data necessary for the terminal device.

In a seventh aspect, the embodiment of the present application further provides a communication system, where the communication system includes the first base station provided by the foregoing fifth aspect and the terminal device provided by the foregoing sixth aspect.

In an eighth aspect, the embodiment of the present application provides a computer program product, where the computer program product includes a computer program stored on the first non-transitory computer storage medium, where the computer program includes program instructions, when When the program instructions are executed by the computer, causing the computer to perform the method provided by any one of the first aspect or the first aspect, or to perform the method provided by any one of the second aspect or the second aspect, or to perform The method provided by the third aspect or any one of the above third aspects, or the method provided by the fourth aspect or any one of the above fourth aspects.

In a ninth aspect, the embodiment of the present application provides a computer storage medium, where the computer storage medium stores computer executable instructions, when the computer executable instructions are invoked by a computer, causing the computer to perform the first aspect or the foregoing A method provided by any one of the aspects, or a method provided by the second aspect or any one of the above second aspects, or the method provided by the third aspect or any one of the above third aspects, or The method provided by the fourth aspect or any one of the above fourth aspects is performed.

DRAWINGS

1 is a schematic flowchart of a secondary cell configuration method provided by the prior art;

FIG. 2 is a schematic diagram of an application scenario of a primary cell and a secondary cell SCell according to an embodiment of the present disclosure;

3 is a schematic structural diagram of a communication system according to an embodiment of the present application;

4 is a schematic flowchart of a method for configuring a first secondary cell according to an embodiment of the present application;

FIG. 5 is a schematic flowchart of a method for exchanging carrier frequencies according to an embodiment of the present disclosure;

FIG. 6 is a schematic flowchart of another method for exchanging carrier frequencies according to an embodiment of the present disclosure;

FIG. 7 is a schematic flowchart diagram of a second secondary cell configuration method according to an embodiment of the present disclosure;

FIG. 8 is a schematic flowchart of a method for configuring a third secondary cell according to an embodiment of the present application;

FIG. 9 is a schematic flowchart diagram of a method for configuring a fourth secondary cell according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of a first first base station according to an embodiment of the present application;

FIG. 11 is a schematic structural diagram of a second first base station according to an embodiment of the present application;

FIG. 12 is a schematic structural diagram of a first terminal device according to an embodiment of the present application;

FIG. 13 is a schematic structural diagram of a second terminal device according to an embodiment of the present disclosure;

FIG. 14 is a schematic structural diagram of a third first base station according to an embodiment of the present application;

FIG. 15 is a schematic structural diagram of a fourth first base station according to an embodiment of the present application;

FIG. 16 is a schematic structural diagram of a third terminal device according to an embodiment of the present application;

FIG. 17 is a schematic structural diagram of a fourth terminal device according to an embodiment of the present disclosure.

detailed description

With the development of communication technologies, communication systems are increasingly demanding transmission bandwidth. In order to support a large transmission bandwidth, a carrier aggregation (CA) concept is proposed, in which two or more component carriers (CCs) are aggregated to support a larger transmission bandwidth. Each CC corresponds to one cell. After the carrier aggregation scheme is adopted, the terminal device can perform data transmission and reception operations with multiple cells at the same time. The multiple cells include a primary cell (PCell) and a secondary cell (SCell). That is to say, the terminal device can perform data transmission and reception through the primary cell and the secondary cell at the same time, thereby improving data transmission and reception efficiency.

In this embodiment, the PCell may be a cell established when the terminal device performs initial radio resource control (RRC) connection, or may be a cell established when performing RRC connection reestablishment, or may be specified during cell handover. The main cell. The PCell is responsible for RRC communication between the terminal device and the base station. The SCell is a cell added during RRC reconfiguration to provide additional radio resources. There is no RRC communication between the SCell and the terminal device. An application scenario of the PCell and the SCell may be as shown in FIG. 2: the macro cell PCell is used as a mobility anchor of the terminal device to reduce the handover operation of the terminal device, and the small cell (small cell) is densely deployed as a SCell in different The frequency is used to increase the data rate of the terminal device.

However, after the terminal device enters the connected state, the use of the CA is often limited by the delay generated by the SCell configuration. The large configuration delay of the SCell affects the utilization of the SCell. For example, if the terminal device cannot obtain the Scell configuration for a long time after entering the connected state, when the terminal device needs to send data, the data can only be sent through the PCell, which will undoubtedly reduce the usage rate of the SCell, and it is difficult to reach the PCell. User plane load balancing with SCell.

As described above, when the SCell configuration method shown in FIG. 1 is adopted, the process of performing cell measurement in the connection state of the terminal device takes a long time, and the terminal device cannot use the Scell for a long time after entering the connected state. Data transmission and reception reduces the utilization of SCell. Therefore, there is a need for an SCell configuration method to improve the utilization of SCell.

The embodiment of the present application provides a secondary cell configuration method, a base station, and a terminal device, which are used to improve the utilization of the SCell. The method and the device are based on the same inventive concept. Since the principles of the method and the device for solving the problem are similar, the implementation of the device and the method can be referred to each other, and the repeated description is not repeated.

The base station in the embodiment of the present application may be a global system for mobile communications (GSM) or a base transceiver station (BTS) in code division multiple access (CDMA). It may be a network device (NodeB) in wide-band code division multiple access (WCDMA), or an evolved network device (evolutional node) in a long term evolution (LTE) system. B, eNB or e-NodeB), 5G base station in the 5G network architecture (next generation system), may also be home evolved node B (HeNB), relay node (relay node), home base station (femto), The type of the access network device is not specifically limited in the embodiment of the present application.

The terminal device in the embodiment of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device corresponding to a wireless connection function, or other processing device connected to a wireless modem. The terminal device can communicate with one or more core networks via a radio access network (RAN), and the terminal device can be Mobile terminals, such as mobile telephones (or "cellular" telephones) and computers corresponding to mobile terminals, for example, can be portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile devices that exchange with a wireless access network Language and / or data. For example, personal communication service (PCS) telephone, cordless telephone, session initiated protocol (SIP) telephone, wireless local loop (WLL) station, personal digital assistant (personal digital assistant, PDA) and other equipment. A terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, The remote terminal, the access terminal, the user terminal, the user agent, or the user equipment are not limited in the embodiment of the present application.

The core network in the embodiment of the present application may be a core network (CN) in LTE, or may be a 5G core network.

Referring to FIG. 3, a communication system provided by an embodiment of the present application includes a terminal device, a base station, and a core network. In the communication system shown in FIG. 3, the terminal device can access the core network through the base station.

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

It should be noted that, in the embodiment of the present application, a plurality refers to two or more. In the description of the present application, the terms "first", "second" and the like are used for the purpose of distinguishing the description, and are not to be construed as indicating or implying a relative importance, nor as an indication or suggestion.

The following describes the secondary cell configuration method provided by the present application in two embodiments.

Embodiment 1

Referring to FIG. 4, a method for configuring a secondary cell according to an embodiment of the present disclosure includes the following steps:

S401: The first base station sends a first message to the terminal device.

In S401, the first message is used to indicate that the terminal device is switched from the RRC connected state to the idle state or the INACTIVE state, and the first message carries the measurement configuration information, where the measurement configuration information includes multiple carrier frequencies, and the measurement configuration information is used to indicate The terminal device performs channel quality measurement on multiple carrier frequencies to filter out N candidate cells. The first base station is a base station corresponding to the primary cell of the terminal device, and N≥1.

In S401, the terminal device may perform channel quality measurement on multiple carrier frequencies after being converted to an idle state or an INACTIVE state. In the embodiment of the present application, the purpose of the channel quality measurement by the terminal device in the idle state or the INACTIVE state is to filter out N candidate cells with better channel quality in the idle state or the INACTIVE state, so that the terminal device enters the RRC connection again. In the state, the first base station can configure the secondary cell for the terminal device faster according to the measurement result of the channel quality.

Specifically, the first message may be an RRC connection reconfiguration message or an RRC connection release message.

In S401, the measurement configuration information further includes one or more of the following information:

a threshold for indicating a channel quality of a candidate cell reported by the physical layer (L1) of the terminal device to the RRC layer (L3) of the terminal device;

The measurement time is used to indicate the start time of the channel quality measurement by the terminal device for multiple carrier frequencies. The measurement time may be relative time, for example, how long after the terminal device receives the measurement configuration information or application data is to be sent. How long before the channel quality measurement is started; the measurement time can also be an absolute time, such as a global positioning system (GPS) time or a system frame number (SFN) information.

It should be noted that, if the measurement time is not included in the measurement configuration information, the terminal device may independently select the measurement time after receiving the first message.

In addition, in S401, the multiple carrier frequencies may be the carrier frequency under the first base station, or may be the carrier frequency under the second base station adjacent to the first base station, or the carrier frequency and the second base station under the first base station. A collection of carrier frequencies underneath. This is because if the terminal device moves faster in the idle state or the INACTIVE state, the terminal device may have entered the coverage of another base station (such as the second base station) after entering the RRC connected state. If the terminal device is already in the S401 The carrier frequency under the base station (second base station) is subjected to channel quality measurement, and after the terminal device enters the coverage of the base station (second base station), the base station (second base station) may also be based on channel quality measurement of the terminal device. As a result, the terminal device is configured with a secondary cell. That is, the first base station may determine, according to the moving speed of the terminal device, whether the plurality of carrier frequencies in the measurement configuration information include the carrier frequency under the second base station.

It should be noted that, in the embodiment of the present application, the second base station refers to the neighboring base station of the first base station, and the number of the second base station may be one or more, and the number of the second base station is not in the embodiment of the present application. Make restrictions.

If the measurement configuration information includes the carrier frequency under the second base station, the first base station first needs to acquire the carrier frequency under the second base station.

Specifically, the manner in which the first base station acquires the carrier frequency under the second base station includes but is not limited to the following three types:

The first type: the first base station receives a fourth message sent by the second base station, where the fourth message is used to indicate a carrier frequency under the second base station.

Specifically, for two base stations (the first base station and the second base station), one way of exchanging the respective carrier frequencies may be as shown in FIG. 5. In FIG. 5, eNB1 is a specific example of the first base station, and eNB2 is a specific example of the second base station. The eNB1 may directly transmit the carrier frequency under the eNB1 to the eNB2, and the eNB2 may directly transmit the carrier frequency under the eNB2 to the eNB1. Through the carrier frequency switching process shown in FIG. 5, the first base station can acquire the carrier frequency under the second base station, and the second base station can also acquire the carrier frequency under the first base station.

The second type: the first base station receives the fourth message sent by the core network, where the fourth message is used to indicate the carrier frequency under the second base station.

Specifically, for two base stations (the first base station and the second base station), one way for the two to exchange the respective carrier frequencies can be as shown in FIG. 6. In FIG. 6, eNB1 is a specific example of the first base station, eNB2 is a specific example of the second base station, and MME is a specific example of the core network. The eNB1 may transmit the carrier frequency under eNB1 to the eNB2 through the MME, and the eNB2 may also transmit the carrier frequency under the eNB2 to the eNB1 through the MME. Through the carrier frequency switching process shown in FIG. 6, the first base station can acquire the carrier frequency under the second base station, and the second base station can also acquire the carrier frequency under the first base station.

The third type: multiplexing neighboring cell information exchange process

In the process of neighbor cell information exchange, the base stations of adjacent cells exchange their respective carrier frequencies. In the method shown in FIG. 4, in order to reduce the signaling overhead between the first base station and the second base station or the core network, the first base station may multiplex the neighboring cell information exchange process to acquire the carrier frequency under the second base station.

It should be noted that, if the first mode or the second mode is adopted, the carrier frequency of the second base station acquired by the first base station may be all carrier frequencies under the second base station, or may be all carriers under the second base station. Part of the carrier frequency used for channel quality measurement in the frequency. If the third mode is adopted, the carrier frequency of the second base station acquired by the first base station may be all carrier frequencies under the second base station.

It should also be noted that the measurement configuration information includes multiple carrier frequencies. As described above, the multiple carrier frequencies may be the carrier frequency under the first base station and/or the carrier frequency under the second base station. Taking the first base station as an example, the primary cell to which the first base station belongs may include multiple candidate cells, and the multiple candidate cells may be used to configure the terminal device in the primary cell as the secondary cell of the terminal device, and multiple candidate cells. The carrier frequencies are generally different. However, there are cases where multiple candidate cells use the same carrier frequency. For example, both candidate cell 1 and candidate cell 2 communicate with the terminal device at carrier frequency f1. Therefore, in the embodiment of the present application, the carrier frequency and the candidate cell do not necessarily have a one-to-one correspondence.

S402: The terminal device converts the RRC connected state to the idle state or the INACTIVE state according to the first message, and performs channel quality measurement on the multiple carrier frequencies according to the measurement configuration information, so as to filter out N candidate cells, so that the terminal device enters the RRC again. In the connected state, the secondary cell of the terminal device is quickly configured, N≥1.

In S402, performing channel quality measurement on multiple carrier frequencies means that the terminal device measures channel quality of measurement signals (such as downlink synchronization signals or cell reference signals) at multiple carrier frequencies, and selects N channel quality comparisons therefrom. Preferably, the first base station selects a secondary cell configuration from the N candidate cells that are in one-to-one correspondence with the N measurement signals to the terminal device. The downlink synchronization signal of the candidate cell is obtained by the terminal device when measuring each measurement signal, and the downlink synchronization signal of the candidate cell implicitly indicates the corresponding candidate cell information, for example, by a primary synchronization signal (PSS). The secondary cell synchronization signal (SSS) is used to calculate the physical cell identifier (PCI), so that the terminal device can obtain the PCI of the candidate cell corresponding to the measurement signal after receiving a measurement signal, thereby After the channel quality measurement is performed on the measurement signals of the multiple carrier frequencies, the terminal device may filter out which N candidate cells are selected according to the PCI judgment, and report the selected N candidate cells to the first base station.

S403: The terminal device sends the second message to the first base station when converting from the idle state or the INACTIVE state to the RRC connected state.

The second message carries a measurement report, where the measurement report includes indication information of N candidate cells that are filtered by the terminal device. Specifically, the second message may be an RRC connection setup complete message or an RRC connection request message, or may be another uplink RRC message, which is not limited herein.

In S403, the N candidate cells reported by the terminal device may be candidate cells under the first base station and/or candidate cells under the second base station. That is to say, the terminal device can select which candidate cells are reported according to different scenarios and different indications of the first base station.

Illustratively, if the first base station instructs the terminal device to report only the measurement result of the certain carrier frequency before the terminal device reports the indication information of the N candidate cells, the carrier frequency corresponding to the N candidate cells reported by the terminal device belongs to Within the range of some of the above carrier frequencies. For example, the first base station instructs the terminal device to report only the measurement results of the carrier frequencies f1, f2, and f3, and the terminal device only reports the indication information of the N candidate cells whose carrier frequencies are f1, f2, and f3, where N≥3.

For example, the terminal device may report only the measurement result of the carrier frequency under the base station corresponding to the current serving cell. For example, if the terminal device still resides in the primary cell corresponding to the first base station when reporting the measurement report, the terminal device may only report the measurement result of the carrier frequency under the first base station, that is, the N candidate cells are the first base station. If the terminal device performs cell reselection (ie, handover from the first base station to the second base station) after receiving the first message and reporting the measurement report, the terminal device may report only the second base station. The measurement result of the carrier frequency, that is, the N candidate cells are candidate cells under the second base station. It should be noted that if the terminal device performs cell reselection, the terminal device When the measurement result is reported, it can be reported to the base station after the handover. For example, after the terminal device switches from the first base station to the second base station, the measurement result can be reported to the second base station.

It should be noted that the N candidate cells reported by the terminal device may be the candidate cells with the best channel quality, and N=1; or the N candidate cells may be the N candidate cells with the best channel quality. N≥1; or, the N candidate cells may be candidate cells whose channel quality is higher than a preset threshold, where N≥1. Specifically, the indication information of the N candidate cells may include at least one of the following: a carrier frequency of the N candidate cells, a PCI of the N candidate cells, and a channel quality of the N candidate cells.

S404: The first base station sends a third message to the terminal device according to the measurement report.

The third message includes the secondary cell configuration information of the terminal device. The terminal device can obtain the indication information of the secondary cell configured by the first base station by using the secondary cell configuration information, for example, the PCI of the secondary cell configured by the first base station.

Specifically, the third message may be an RRC connection reconfiguration message, or may be another downlink RRC message, which is not limited herein.

Optionally, before the first base station sends the first message to the terminal device, the first indication message sent by the terminal device to the first base station, where the first indication message is used to indicate that the terminal device is configured to perform channel quality measurement in an idle state or an INACTIVE state. Ability.

Specifically, the first indication message includes, but is not limited to, RRC UE capability information or UE mobility report.

After the terminal device determines whether it has the capability of performing channel quality measurement (for subsequent secondary cell fast configuration) in the idle state or the INACTIVE state, the terminal device may send a first indication message to the first base station, so that the first base station learns the The terminal device has the capability to perform channel quality measurements (for subsequent secondary cell fast configuration) in the idle state or the INACTIVE state. After the first base station learns that the terminal device has the capability of performing channel quality measurement (for subsequent secondary cell fast configuration) in the idle state or the INACTIVE state, the first base station may send the first message to the terminal device in S401, thereby Instructing the terminal device to perform channel quality measurement on multiple carrier frequencies in an idle state or an INACTIVE state; when the first base station learns that the terminal device does not have the channel quality measurement in the idle state or the INACTIVE state (for subsequent secondary cell fast configuration) After the capability, the first base station does not have to send the first message to the terminal device.

In addition, before the first base station sends the first message to the terminal device, the first base station may receive a second indication message sent by the core network, where the second indication message is used to indicate a service mode and/or a data packet interval of the terminal device.

Specifically, the second indication message may be an initial context setup request message.

After acquiring the service model and/or the data packet interval of the terminal device, the first base station may determine, according to the service model and/or the data packet interval of the terminal device, the measurement time of the channel quality measurement performed by the terminal device on multiple carrier frequencies, thereby The measurement time is transmitted to the terminal device in S401 as part of the measurement configuration information. For example, if the service mode of the terminal device indicates that the terminal device service is frequent, the measurement time may be set earlier, so that the terminal device can complete the measurement of multiple carrier frequencies in time, and facilitate the first base station to enter the RRC in the terminal device. After the connection state, the secondary device is configured as soon as possible to support the terminal device to support the frequent service of the terminal device; if the data packet interval of the terminal device is large, the measurement time can be set later. For a terminal device with a large interval of the data packet, the time interval between the time when the first message is received and the time when the next message enters the RRC connected state may be relatively large, and thus the terminal device does not have to perform the channel quality measurement operation prematurely.

In the first embodiment, the terminal device may report the measurement report to the first base station after completing the channel quality measurement and re-entering the RRC connected state, or may send the measurement report to the first base station when the first base station requests the terminal device to send the measurement report. Send a measurement report. In the implementation manner in which the terminal device performs reporting based on the request of the first base station, it takes a certain time for the terminal device to perform channel quality measurement, and the first base station cannot know when the terminal device has completed channel quality measurement. Therefore, before the first base station receives the second message reported by the terminal device, the terminal device may send a fifth message to the first base station, where the fifth message is used to indicate that the measurement report has been generated; and then, the first base station sends the second message to the terminal device. The sixth message is used to instruct the terminal device to report the measurement report.

Specifically, the fifth message may be a random access message 1 (ie, a preamble), and the sixth message may be a random access response (RAR) or an RRC connection setup message. In this manner, a random access preamble or a random access resource may be used to implicitly indicate that the terminal device has generated a measurement report. Therefore, it is necessary to pre-allocate one or a specific set of preambles, or one or a specific set of randoms. Access resources are allocated, for example, by RRC signaling. When the terminal device transmits this (or in the group) preamble, or when the terminal device occupies this (or this group) of random access resources, it indicates that the terminal device has generated a measurement report. Then, after receiving the random access message 1 (ie, the preamble), the first base station may instruct the terminal device to report the measurement report by sending a random access response message (RAR) or an RRC connection setup message to the terminal device. .

Alternatively, the fifth message may be an RRC connection request message or an RRC connection resume request message, and the corresponding sixth message may be an RRC connection setup message or an RRC connection. RRC connection resume. For example, the terminal device carries the 1-bit indication information in the RRC connection request message or the RRC connection resume request message to indicate that the terminal device has generated the measurement report. Then, after receiving the RRC connection request message or the RRC connection resume request message, the first base station may send an RRC connection setup message or an RRC connection setup message to the terminal device. The RRC connection resume is used to instruct the terminal device to report the measurement report.

Alternatively, the fifth message may be an RRC connection setup complete message or an RRC connection resume complete message. For example, the terminal device carries the 1-bit indication information in the RRC connection setup complete message or the RRC connection resume complete message to indicate that the terminal device has generated the measurement report. Then, after receiving the RRC connection setup complete message or the RRC connection resume complete message, the first base station may instruct the terminal device to report the measurement report by sending a downlink RRC message to the terminal device.

Through the foregoing method, the first base station can know when the terminal device has generated the measurement report, so that the first base station can report the measurement report in time after the first base station sends the sixth message to the terminal device to request the terminal device to report the measurement report. Give the first base station.

Optionally, the sixth message is further used to indicate that the measurement report reported by the terminal device includes indication information of a part of the candidate cells in the N candidate cells. That is, the first base station may indicate, based on its own needs, which carrier frequencies (eg, carrier frequencies with lower load, carrier frequencies under the first base station, etc.) are reported by the terminal device.

With the secondary cell configuration method provided by the first embodiment of the present application, when the terminal device is in the RRC connected state, the first base station sends a first message to the terminal device to indicate that the terminal device changes from the RRC connected state to the idle state or the INACTIVE state. Simultaneously indicating, by using the measurement configuration information in the first message, the terminal device according to the measurement configuration information. The indication is to perform channel quality measurement on multiple carrier frequencies in the idle state or the INACTIVE state, and report the measurement report to the first base station after the terminal device enters the RRC connected state again, so that the first base station can be quickly configured for the terminal device. Secondary cell. After the terminal device enters the RRC connected state again, the first base station can receive the measurement report sent by the terminal device, and the first base station can send the third message in a shorter time to configure the secondary cell for the terminal device. Compared with the solution that the terminal device performs channel quality measurement in the RRC connection state in the prior art, after the terminal device enters the RRC connection state again, it is not necessary to take a long time to perform channel quality measurement, so that the first base station can be configured for the terminal device. The process of the secondary cell. Therefore, compared with the prior art, by using the secondary cell configuration method provided in the first embodiment, the terminal device can complete the secondary cell configuration in a short time after re-entering the RRC connected state, thereby improving the utilization rate of the secondary cell.

Based on the foregoing description of the first embodiment, the present application further provides a secondary cell configuration method, which may be regarded as a specific example of the method shown in FIG. 4. Referring to Figure 7, the method includes the following process:

After the UE enters the RRC connection mode, the UE mobility report is reported to the eNB.

The UE is a specific example of the terminal device in the method shown in FIG. 4; the eNB is a specific example of the first base station in the method shown in FIG. 4.

2. If the UE supports channel quality measurement in the IDLE state or the INACTIVE state, the UE may include this indication in the reported UE capability information (UE capability).

3. When the UE communicates with the core network through the eNB, the core network may indicate related information such as the service mode/packet interval of the UE through the S1 interface.

For example, related information such as a service mode/packet interval of the UE may be delivered through an initial context setup request. The initial context setup request message is a specific example of the second indication message in the method shown in FIG. 4 .

4. The eNB may determine whether to configure the UE to perform channel quality measurement in the IDLE state or the INACTIVE state according to the mobility of the UE, the UE capability, and the service mode/packet interval of the UE.

5. If the eNB decides to configure the UE to perform channel quality measurement in the IDLE state or the INACTIVE state, the eNB may request the carrier frequency used for channel quality measurement under eNB2 from the neighboring eNB2 according to the moving speed of the UE.

Wherein, eNB2 is a specific example of the second base station in the method shown in FIG.

6. The eNB2 transmits the carrier frequency used for channel quality measurement under the eNB2 to the eNB.

7. When the current service of the UE ends, the eNB may send an RRC connection release message to enter the IDLE state, or the eNB may send an RRC connection reconfiguration message/RRC connection release message to let the UE enter the INACTIVE state. The measurement configuration information is carried in the above message.

8. The UE enters an IDLE state or an INACTIVE state, and performs channel quality measurement on multiple carrier frequencies according to measurement configuration information sent by the eNB.

9. When the UE enters the RRC connected state again, it indicates that the measurement report has been generated by sending a random access message 1 to the eNB.

Random access message 1 is a specific example of the fifth message in the method shown in FIG.

In addition, before the eNB sends the random access message 1 to the UE, the core network may send an S1 paging message (S1 Paging) to the eNB, and then the eNB sends a paging message (Paging) to the UE for initiating paging for the UE.

10. The eNB sends a random access response message (RAR) or an RRC connection setup message to the UE (RRC connection). Setup) to instruct the terminal device to report the measurement result.

The random access response message (RAR) or the RRC connection setup message is a specific example of the sixth message in the method shown in FIG. 4.

11. The UE reports the measurement report by using an RRC connection request message or an RRC connection setup complete message.

The UE is an RRC connection request message or an RRC connection setup complete message (RRC connection setup complete) is a specific example of the second message in the method shown in FIG. 4.

12. The eNB determines which secondary cell is configured for the UE according to the measurement report.

13. The eNB configures the secondary cell for the UE by sending an RRC message to the UE.

The RRC message is a specific example of the third message in the method shown in FIG. 8.

The method shown in FIG. 7 can be regarded as a specific example of the method shown in FIG. 4, and the implementation not described in detail in FIG. 7 can be referred to the related description in FIG.

Embodiment 2

FIG. 8 is a schematic diagram of a method for configuring a secondary cell according to an embodiment of the present disclosure, where the method includes the following steps:

S801: The first base station corresponding to the primary cell sends a first message to the terminal device that is in an idle state or an INACTIVE state after accessing the primary cell.

The first message carries measurement configuration information, where the measurement configuration information includes multiple carrier frequencies, and the measurement configuration information is used to indicate that the terminal device performs channel quality measurement on multiple carrier frequencies.

In S801, the purpose of performing channel quality measurement on multiple carrier frequencies in the idle state or the INACTIVE state is to: screen out N candidate cells with better channel quality in the idle state or the INACTIVE state, so that the terminal device enters the RRC. In the connected state, the first base station can configure the secondary cell for the terminal device faster according to the measurement result of the channel quality.

Specifically, the first message may be a system message or a paging message.

In S801, the measurement configuration information further includes one or more of the following information:

a threshold for indicating a channel quality of a candidate cell reported by the physical layer (L3) of the terminal device to the RRC layer (L3) of the terminal device;

It should be noted that, in the embodiment, the measurement configuration information may not include the measurement time, because the measurement time is determined by the first base station according to information such as the service mode/packet interval of the user equipment, and the second embodiment After the terminal device enters the primary cell, it is in an idle state or an INACTIVE state. Therefore, the core network cannot learn information such as the service mode/packet interval of the terminal device, and thus cannot give an indication of when the terminal device performs channel quality measurement. In the second embodiment, the terminal device can independently select the measurement time after receiving the first message.

In S801, the multiple carrier frequencies may be the carrier frequency under the first base station, or may be the carrier frequency under the second base station adjacent to the first base station, or the carrier frequency under the first base station and the second base station. A collection of carrier frequencies. This is because if the terminal device moves faster in the idle state or the INACTIVE state, the terminal device may enter the coverage of another base station (such as the second base station) after being converted to the connected state. If the terminal device is already in the S801 The carrier frequency under the base station (second base station) is subjected to channel quality measurement, and after the terminal device enters the coverage of the base station (second base station), the base station (second base station) may also be based on channel quality measurement of the terminal device. As a result, the terminal device is configured with a secondary cell.

If the measurement configuration information includes the carrier frequency under the second base station, the first base station first needs to acquire the carrier frequency under the second base station. Specifically, the manner in which the first base station acquires the carrier frequency of the second base station can be referred to the three manners introduced in the first embodiment. For example, the first base station receives the fourth message sent by the second base station or the core network, and the fourth message is used by the fourth base station. The carrier frequency under the second base station is obtained, or the carrier frequency of the second base station is obtained by the first base station multiplexable neighboring cell information exchange process, and details are not described herein again.

It should be noted that the measurement configuration information includes multiple carrier frequencies. As described above, the multiple carrier frequencies may be the carrier frequency under the first base station and/or the carrier frequency under the second base station. Taking the first base station as an example, the primary cell to which the first base station belongs may include multiple candidate cells, and the multiple candidate cells may be used to configure the terminal device in the primary cell as the secondary cell of the terminal device, and multiple candidate cells. The carrier frequencies are generally different. However, there are cases where multiple candidate cells use the same carrier frequency. For example, both candidate cell 1 and candidate cell 2 communicate with the terminal device at carrier frequency f1. Therefore, in the embodiment of the present application, the carrier frequency and the candidate cell do not necessarily have a one-to-one correspondence.

S802: The terminal device performs channel quality measurement on multiple carrier frequencies according to the measurement configuration information, so as to filter out N candidate cells, where N≥1.

In S802, performing channel quality measurement on multiple carrier frequencies means that the terminal device measures channel quality of measurement signals (such as downlink synchronization signals or cell reference signals) at multiple carrier frequencies, and selects N channel quality comparisons therefrom. Preferably, the first base station selects a secondary cell configuration from the N candidate cells that are in one-to-one correspondence with the N measurement signals to the terminal device. The downlink synchronization signal of the candidate cell is obtained by the terminal device when measuring each measurement signal, and the downlink synchronization signal of the candidate cell implicitly indicates the corresponding candidate cell information, for example, the PCI calculated by the PSS and the SSS index. After receiving the measurement signal, the terminal device can learn the PCI of the candidate cell corresponding to the measurement signal, so that the terminal device can perform the channel quality measurement on the measurement signals of the multiple carrier frequencies, and then select which N to use according to the PCI judgment. The candidate cells are reported to the first base station.

In addition, the terminal device may determine its ability to perform channel quality measurement in the idle state or the INACTIVE state before performing channel quality measurement in S802.

S803: The terminal device sends a second message to the first base station when converting from the idle state or the INACTIVE state to the RRC connected state.

The second message carries a measurement report, where the measurement report includes indication information of N candidate cells that are filtered by the terminal device, where N≥1. Specifically, the second message may be an RRC connection setup complete message or an RRC connection request message, or may be another uplink RRC message, which is not limited herein.

In S803, the N candidate cells reported by the terminal device may be candidate cells under the first base station and/or candidate cells under the second base station. That is to say, the terminal device can select which candidate cells are reported according to different scenarios.

Illustratively, the terminal device may select to report the candidate cell under the first base station and/or the candidate cell under the second base station based on its own moving speed. For example, if the moving speed of the terminal device is slow, the terminal device may decide to report only the candidate cell under the first base station.

For example, the terminal device may report only the measurement result of the carrier frequency under the base station corresponding to the current serving cell. For example, if the terminal device still resides in the primary cell corresponding to the first base station when reporting the measurement report, the terminal device may The measurement result of the carrier frequency under the first base station is reported, that is, the N candidate cells are candidate cells under the first base station; if the terminal device performs cell reselection after receiving the first message and reporting the measurement report (ie, The terminal device may report only the measurement result of the carrier frequency under the second base station, that is, the N candidate cells are candidate cells under the second base station. It should be noted that, if the terminal device performs the cell reselection, the terminal device may report the measurement result to the base station after the handover, for example, the terminal device may report the measurement result after switching from the first base station to the second base station. To the second base station.

S804: The first base station sends a third message to the terminal device according to the measurement report.

In the second embodiment, the terminal device may report the measurement report to the first base station after completing the channel quality measurement and enter the RRC connected state, or may send the measurement to the first base station when the first base station requests the terminal device to send the measurement report. report. In the implementation manner in which the terminal device performs reporting based on the request of the first base station, it takes a certain time for the terminal device to perform channel quality measurement, and the first base station cannot know when the terminal device has completed channel quality measurement. Therefore, before the first base station receives the second message reported by the terminal device, the terminal device may send a fifth message to the first base station, where the fifth message is used to indicate that the measurement report has been generated; and then, the first base station sends the second message to the terminal device. The sixth message is used to instruct the terminal device to report the measurement report.

Specifically, the fifth message may be a random access message 1 (ie, a preamble), and the sixth message may be a random access response message (RAR) or an RRC connection setup message. In this manner, the preamble or random access resource of the random access implicitly indicates that the terminal device has generated the measurement report, and therefore, it is necessary to pre-allocate one or a specific preamble, or one or a specific set of random connections. Incoming resources, for example, through RRC signaling. When the terminal device transmits this (or in the group) preamble, or when the terminal device occupies this (or this group) of random access resources, it indicates that the terminal device has generated a measurement report. Then, after receiving the random access message 1 (ie, the preamble), the first base station may instruct the terminal device to report the measurement report by sending a random access response message (RAR) or an RRC connection setup message to the terminal device. .

Alternatively, the fifth message may be an RRC connection request message or an RRC connection resume request message, and the corresponding sixth message may be an RRC connection setup message or an RRC connection. RRC connection resume. For example, the terminal device carries the 1-bit indication information in the RRC connection request message or the RRC connection resume request message to indicate that the terminal device has generated the measurement report. Then, after receiving the RRC connection request message or the RRC connection resume request message, the first base station may send an RRC connection setup message or an RRC connection setup message to the terminal device. RRC connection resume to indicate the terminal The device reports the measurement report.

The secondary cell configuration method provided by the second embodiment of the present application may be used to notify the terminal device according to the measurement configuration information in the first message by sending the first message when the terminal device is in the idle state or the INACTIVE state after entering the primary cell. The carrier frequency is measured by the carrier frequency, and the measurement report is reported to the first base station after the terminal device enters the RRC connected state, so that the first base station can quickly configure the secondary cell for the terminal device. Since the first base station can receive the measurement report sent by the terminal device after the terminal device enters the RRC connected state, the first base station can configure the secondary cell for the terminal device in a shorter time. Compared with the solution that the terminal device performs channel quality measurement in the RRC connection state in the prior art, after the terminal device enters the RRC connection state again, it is not necessary to take a long time to perform channel quality measurement, so that the first base station can be configured for the terminal device. The process of the secondary cell. Therefore, compared with the prior art, by using the secondary cell configuration method provided in the second embodiment, the terminal device can complete the secondary cell configuration in a short time after entering the RRC connected state, thereby improving the utilization rate of the secondary cell.

Based on the foregoing description of the second embodiment, the present application further provides a secondary cell configuration method, which may be regarded as a specific example of the method shown in FIG. 8. Referring to Figure 9, the method includes the following process:

1. The eNB requests the adjacent eNB2 for the carrier frequency used for channel quality measurement under eNB2.

The eNB is a specific example of the first base station in the method shown in FIG. 8; the eNB2 is a specific example of the second base station in the method shown in FIG. 8.

2. The eNB2 transmits the carrier frequency used for channel quality measurement under the eNB2 to the eNB.

3. The eNB sends a system message or a paging message to the UE, and carries the measurement configuration information in a system message or a paging message.

The UE is a specific example of the terminal device in the method shown in FIG. 8.

4. The UE performs channel quality measurement on multiple carrier frequencies according to the measurement configuration information sent by the eNB.

5. When the UE enters the RRC connected state, the UE transmits an RRC connection request message (RRC connection request) or an RRC connection resume request message (RRC connection resume request) to indicate that the measurement report has been generated.

RRC connection request message (RRC connection request) or RRC connection recovery request message (RRC The connection resume request) is a specific example of the fifth message in the method shown in FIG.

The eNB sends an RRC connection setup message or an RRC connection resume message to the UE to instruct the terminal device to report the measurement result.

The RRC connection setup message or the RRC connection resume message is a specific example of the sixth message in the method shown in FIG. 8.

7. The UE reports the measurement report by using an RRC connection setup complete message.

The RRC connection setup complete message is a specific example of the second message in the method shown in FIG. 8.

8. The eNB determines which secondary cell is configured for the UE according to the measurement report.

9. The eNB configures the secondary cell for the UE by sending an RRC message to the UE.

The method shown in FIG. 9 can be regarded as a specific example of the method shown in FIG. 8. The implementation not described in detail in FIG. 9 can be referred to the related description in FIG.

Based on the above embodiments, the present application provides a first base station, which can be used to perform operations performed by a first base station in the method shown in FIG. 4 or 7. Referring to FIG. 10, the first base station 1000 includes a transmitter 1001 and a receiver 1002.

In the first base station 1000 shown in FIG. 10, a transmitter 1001 and a receiver 1002 are included. among them,

The transmitter 1001 is configured to send, to the terminal device, a first message, where the first message is used to indicate that the terminal device is in an idle state or an INACTIVE state, where the first message carries measurement configuration information, and the measurement configuration information includes multiple The carrier frequency, the measurement configuration information is used to indicate that the terminal device performs channel quality measurement on multiple carrier frequencies, and the first base station is a base station corresponding to the primary cell of the terminal device.

The receiver 1002 is configured to receive a second message that is sent by the terminal device after being converted from an idle state or an INACTIVE state to an RRC connected state, where the second message carries a measurement report, where the measurement report includes the terminal device performing channel quality measurement on multiple carrier frequencies. The indication information of the N candidate cells after filtering is N≥1.

The transmitter 1001 is further configured to send, according to the measurement report, a third message to the terminal device, where the third message includes the secondary cell configuration information of the terminal device.

It should be noted that the receiver and transmitter in FIG. 10 may be two physical components, or may be included in one physical component (such as a transceiver). The receiver and transmitter transmit and receive data and signaling through an antenna. The base station 1000 shown in FIG. 10 may further include a processor 1003 and a memory 1004. The processor 1003 is configured to execute a program stored in the memory 1004 to complete a corresponding function in the secondary cell configuration method shown in FIG. 4 or 7.

Optionally, the multiple carrier frequencies include a carrier frequency under the first base station and/or a carrier frequency under the second base station, the second base station is a base station adjacent to the first base station, and the receiver 1002 is further configured to: at the transmitter Before transmitting the first message to the terminal device, the device 10010 receives a fourth message sent by the second base station or the core network, where the fourth message is used to indicate the carrier frequency under the second base station.

Optionally, the N candidate cells are candidate cells under the first base station and/or candidate cells under the second base station.

Optionally, the receiver 1002 is further configured to: before the transmitter 1001 sends the first message to the terminal device, receive a first indication message sent by the terminal device, where the first indication message is used to indicate that the terminal device is in an idle state or an INACTIVE state. The ability to perform channel quality measurements.

Optionally, the receiver 1002 is further configured to: before the transmitter 1001 sends the first message to the terminal device, receive a second indication message sent by the core network, where the second indication message is used to indicate the service mode and/or data of the terminal device. Packet interval.

Optionally, the receiver 1002 is further configured to: after receiving the second message reported by the terminal device after being converted from the idle state or the INACTIVE state to the RRC connected state, receiving the fifth message sent by the terminal device, where the fifth message is used to indicate The measurement report is generated. The transmitter 1001 is further configured to: send a sixth message to the terminal device, where the sixth message is used to instruct the terminal device to report the measurement report.

Optionally, the sixth message is further used to indicate that the measurement report reported by the terminal device includes indication information of a part of the candidate cells in the N candidate cells.

Optionally, the measurement configuration information further includes one or more of the following: a filtering threshold, a threshold for indicating a channel quality of the candidate cell reported by the physical layer of the terminal device to the RRC layer of the terminal device; And a measurement time indicating a start time of the channel quality measurement performed by the terminal device on the plurality of carrier frequencies.

With the foregoing solution, when the terminal device is in the RRC connected state, the first message is sent to the terminal device by the first base station, indicating that the terminal device is switched from the RRC connected state to the idle state or the INACTIVE state, and the measurement configuration information in the first message is passed. Instructing the terminal device to perform channel quality measurement on the multiple carrier frequencies in the idle state or the INACTIVE state according to the indication of the measurement configuration information, and reporting the measurement report to the first base station after the terminal device enters the RRC connected state again, for the subsequent first The base station can quickly configure the secondary cell for the terminal device. After the terminal device enters the RRC connected state again, the first base station can receive the measurement report sent by the terminal device, and the first base station can send the third message in a shorter time to configure the secondary cell for the terminal device. Compared with the solution that the terminal device performs channel quality measurement in the RRC connection state in the prior art, after the terminal device enters the RRC connection state again, it is not necessary to take a long time to perform channel quality measurement, so that the first base station can be configured for the terminal device. The process of the secondary cell. Therefore, compared with the prior art, the foregoing solution can complete the secondary cell configuration in a short time after the terminal device enters the RRC connected state again, thereby improving the utilization rate of the secondary cell.

It should be noted that the first base station 1000 shown in FIG. 10 may be used to perform operations performed by the first base station in the secondary cell configuration method shown in FIG. 4 or FIG. 7, and the implementation manner not described in detail in the first base station 1000 may be implemented. See the related description in the method shown in Figure 4 or Figure 7.

FIG. 11 is a schematic diagram showing another possible structure of the first base station 1000 involved in the above embodiment.

Referring to FIG. 11, the first base station 1100 includes a communication unit 1101, a processing unit 1102, and a storage unit 1103. The communication unit 1101 is configured to support the transmission and reception of information between the first base station 1100 and the terminal device in the above embodiment. Processing unit 1102 also performs the processes involved in the first base station in the method illustrated in FIG. 4 or FIG. 7 and/or other processes for the techniques described herein. The storage unit 1103 is configured to store program codes and data of the first base station 1100.

It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logical function division. In actual implementation, there may be another division manner. Each functional unit in the 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. For example, in the above embodiment, the first obtaining unit and the second obtaining unit may be the same unit and different units. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

Based on the above embodiments, the present application provides a terminal device, which can be used to perform operations performed by a terminal device in the method shown in FIG. 4 or 7. Referring to FIG. 12, the terminal device 1200 includes a receiver 1201, a processor 1202, a memory 1203, and a transmitter 1204.

In the terminal device 1200 shown in FIG. 12, a receiver 1201, a processor 1202, a memory 1203, and a transmitter 1204 are included. among them,

The receiver 1201 is configured to receive a first message sent by the first base station, where the first message is used to indicate that the terminal device is in an idle state or an INACTIVE state, where the first message carries measurement configuration information, and the measurement configuration information includes The plurality of carrier frequencies, the measurement configuration information is used to indicate that the terminal device performs channel quality measurement on multiple carrier frequencies, and the first base station is a base station corresponding to the primary cell of the terminal device.

The processor 1202 is configured to: perform, by executing, a program stored in the memory 1203, to convert the terminal device from an RRC connected state to an idle state or an INACTIVE state according to the first message, and perform channel on multiple carrier frequencies according to the measurement configuration information. Quality measurement to screen out N candidate cells.

The transmitter 1204 is configured to send a second message to the first base station when the terminal device is switched from the idle state or the INACTIVE state to the RRC connected state, where the second message carries the measurement report, where the measurement report includes indication information of the N candidate cells, where ≥1.

The receiver 1201 is further configured to receive a third message sent by the first base station, where the third message includes secondary cell configuration information of the terminal device.

It should be noted that the receiver and transmitter in FIG. 12 may be two physical components, or may be included in one physical component (such as a transceiver). The receiver and transmitter transmit and receive data and signaling through an antenna.

Optionally, the multiple carrier frequencies include a carrier frequency under the first base station and/or a carrier frequency under the second base station, and the second base station is a base station adjacent to the first base station.

Optionally, the transmitter 1204 is further configured to: before the receiver 1201 receives the first message sent by the first base station, send a first indication message to the first base station, where the first indication message is used to indicate that the terminal device is in the idle state. Or the ability of the INACTIVE state to perform channel quality measurements.

Optionally, the transmitter 1204 is further configured to: before sending the second message to the first base station, send a fifth message to the first base station, where the fifth message is used to indicate that the measurement report has been generated; and the receiver 1201 is further configured to: receive The sixth message sent by the first base station is used to instruct the terminal device to report the measurement report.

With the foregoing solution, when the terminal device is in the RRC connected state, the first message is sent to the terminal device by the first base station, indicating that the terminal device is switched from the RRC connected state to the idle state or the INACTIVE state, and the measurement configuration information in the first message is passed. Instructing the terminal device to perform channel quality measurement on the multiple carrier frequencies in the idle state or the INACTIVE state according to the indication of the measurement configuration information, and reporting the measurement report to the first base station after the terminal device enters the RRC connected state again, for the subsequent first The base station can quickly configure the secondary cell for the terminal device. After the terminal device enters the RRC connected state again, the first base station can receive the measurement report sent by the terminal device, and the first base station can send the third message in a shorter time to configure the secondary cell for the terminal device. Compared with the solution that the terminal device performs channel quality measurement in the RRC connection state in the prior art, after the terminal device enters the RRC connection state again, it is not necessary to take a long time to perform channel quality measurement, so that the first base station can be configured for the terminal device. The process of the secondary cell. Thus, and now Compared with the prior art, the terminal device can complete the secondary cell configuration in a short time after re-entering the RRC connected state, thereby improving the utilization rate of the secondary cell.

It should be noted that the terminal device 1200 shown in FIG. 12 can be used to perform the operations performed by the terminal device in the secondary cell configuration method shown in FIG. 4 or FIG. 7. The implementation manner not described in detail in the terminal device 1200 can be seen in FIG. 4 . Or a related description in the method shown in FIG.

FIG. 13 is a schematic diagram showing another possible structure of the terminal device 1200 involved in the above embodiment.

Referring to FIG. 13, the terminal device 1300 includes a communication unit 1301, a processing unit 1302, and a storage unit 1303. The communication unit 1301 is configured to support the transmission and reception of information between the terminal device 1300 and the first base station in the foregoing embodiment. Processing unit 1302 also performs the processing involved in the terminal device in the method illustrated in FIG. 4 or FIG. 7 and/or other processes for the techniques described herein. The storage unit 1303 is configured to store program codes and data of the terminal device 1300.

Based on the above embodiments, the present application provides a first base station, which can be used to perform operations performed by a first base station in the method shown in FIG. 8 or 9. Referring to FIG. 14, the first base station 1400 includes a transmitter 1401 and a receiver 1402.

In the first base station 1400 shown in FIG. 14, a transmitter 1401 and a receiver 1402 are included. among them,

The transmitter 1401 is configured to send a first message to the terminal device that is in an idle state or an INACTIVE state after accessing the primary cell, where the first message carries measurement configuration information, the measurement configuration information includes multiple carrier frequencies, and the measurement configuration information is used. The terminal device is instructed to perform channel quality measurement on multiple carrier frequencies, and the first base station is a base station corresponding to the primary cell of the terminal device.

The receiver 1402 is configured to receive a second message that is sent by the terminal device after being converted from the idle state or the INACTIVE state to the RRC connected state, where the second message carries the measurement report, where the measurement report includes the terminal device performing channel quality measurement on multiple carrier frequencies. The indication information of the selected N candidate cells, N≥1.

The transmitter 1401 is further configured to send a third message to the terminal device according to the measurement report, where the third message includes secondary cell configuration information of the terminal device.

It should be noted that the receiver and transmitter in FIG. 14 may be two physical components, or may be included in one physical component (such as a transceiver). The receiver and transmitter transmit and receive data and signaling through an antenna. The first base station 1400 shown in FIG. 14 may further include a processor 1403 and a memory 1404, where the processor 1403 is configured to execute a program stored in the memory 1404 to complete a corresponding function in the secondary cell configuration method shown in FIG. 8 or FIG. .

Optionally, the multiple carrier frequencies include a carrier frequency under the first base station and/or a carrier frequency under the second base station, and the second base station is a base station adjacent to the first base station; the receiver 1402 is further configured to: the transmitter 1401 The fourth message sent by the second base station or the core network is received before the first message sent by the terminal device in the idle state or the INACTIVE state after the access to the primary cell, and the fourth message is used to indicate the carrier frequency under the second base station.

Optionally, the receiver 1402 is further configured to: before receiving the second message that is sent after the terminal device is converted from the idle state or the INACTIVE state to the RRC connected state, receive the fifth message sent by the terminal device, where the fifth message is used to indicate the measurement. The report is generated. The sender 1401 is further configured to: send a sixth message to the terminal device, where the sixth message is used to instruct the terminal device to report the measurement report.

Optionally, the measurement configuration information further includes one or more of the following information: a filtering threshold, which is used to indicate the terminal setting. The threshold of the channel quality of the candidate cell reported by the physical layer to the RRC layer of the terminal device; the trigger threshold is used to indicate the threshold of the channel quality of the N candidate cells.

Through the foregoing solution, when the terminal device enters the primary cell and remains in the idle state or the INACTIVE state, the first message is sent to indicate that the terminal device performs channel quality measurement on multiple carrier frequencies according to the measurement configuration information in the first message, and After the terminal device enters the RRC connection state, the measurement report is reported to the first base station, so that the first base station can quickly configure the secondary cell for the terminal device. Since the first base station can receive the measurement report sent by the terminal device after the terminal device enters the RRC connected state, the first base station can configure the secondary cell for the terminal device in a shorter time. Compared with the solution that the terminal device performs channel quality measurement in the RRC connection state in the prior art, after the terminal device enters the RRC connection state again, it is not necessary to take a long time to perform channel quality measurement, so that the first base station can be configured for the terminal device. The process of the secondary cell. Therefore, compared with the prior art, by using the foregoing solution, the terminal device can complete the secondary cell configuration in a short time after entering the RRC connected state, thereby improving the utilization rate of the secondary cell.

It should be noted that the first base station 1400 shown in FIG. 14 may be used to perform operations performed by the first base station in the secondary cell configuration method shown in FIG. 8 or FIG. 9, and the implementation manner not described in detail in the first base station 1400 may be implemented. See the related description in the method shown in Figure 8 or Figure 9. FIG. 15 shows another possible structural diagram of the first base station 1400 involved in the above embodiment.

Referring to FIG. 15, the first base station 1500 includes a communication unit 1501, a processing unit 1502, and a storage unit 1503. The communication unit 1501 is configured to support the transmission and reception of information between the first base station 1500 and the terminal device in the foregoing embodiment. Processing unit 1502 also performs the processes involved in the first base station in the method illustrated in FIG. 8 or FIG. 9 and/or other processes for the techniques described herein. The storage unit 1503 is configured to store program codes and data of the first base station 1500.

Based on the above embodiments, the present application provides a terminal device, which can be used to perform operations performed by a terminal device in the method shown in FIG. 8 or 9. Referring to FIG. 16, the terminal device 1600 includes a receiver 1601, a processor 1602, a memory 1603, and a transmitter 1604.

In the terminal device 1600 shown in FIG. 16, a receiver 1601, a processor 1602, a memory 1603, and a transmitter 1604 are included. among them,

The receiver 1601 is configured to receive the first message sent by the first base station corresponding to the primary cell when the terminal device is in the idle state or the INACTIVE state, and the first message carries the measurement configuration information, and the measurement configuration information includes multiple The carrier frequency, the measurement configuration information is used to indicate that the terminal device performs channel quality measurement on multiple carrier frequencies.

The processor 1602 is configured to perform, by executing the program stored in the memory 1603, performing channel quality measurement on the plurality of carrier frequencies according to the measurement configuration information to filter out N candidate cells.

The transmitter 1604 is configured to send, by the terminal device, a second message to the first base station when the state is changed from the idle state or the INACTIVE state to the RRC connected state, where the second message carries the measurement report, where the measurement report includes indication information of the N candidate cells, where ≥1.

The receiver 1601 is further configured to receive a third message sent by the first base station, where the third message includes secondary cell configuration information of the terminal device.

It should be noted that the receiver and transmitter in FIG. 16 may be two physical components, or may be included in one physical component (such as a transceiver). The receiver and transmitter transmit and receive data and signaling through an antenna.

Optionally, the transmitter 1604 is further configured to: before sending the second message to the first base station, send a fifth message to the first base station, where the fifth message is used to indicate that the measurement report has been generated; and the receiver 1601 is further configured to: receive The sixth message sent by the first base station is used to instruct the terminal device to report the measurement report.

Optionally, the processor 1602 is further configured to: perform, by executing a program stored in the memory 1603, to determine that the terminal device has a channel in an idle state or an INACTIVE state before performing channel quality measurement on the plurality of carrier frequencies according to the measurement configuration information. The ability to measure quality.

Optionally, the measurement configuration information further includes one or more of the following: a filtering threshold, a threshold for indicating a channel quality of the candidate cell reported by the physical layer of the terminal device to the RRC layer of the terminal device; A threshold indicating channel quality of N candidate cells.

It should be noted that the terminal device 1600 shown in FIG. 16 can be used to perform the operations performed by the terminal device in the secondary cell configuration method shown in FIG. 8 or FIG. 9. The implementation manner not described in detail in the terminal device 1600 can be seen in FIG. 8. Or a related description in the method shown in FIG.

FIG. 17 shows another possible structural diagram of the terminal device 1600 involved in the above embodiment.

Referring to FIG. 17, the terminal device 1700 includes a communication unit 1701, a processing unit 1702, and a storage unit 1703. The communication unit 1701 is configured to support the transmission and reception of information between the terminal device 1700 and the first base station in the above embodiment. Processing unit 1702 also performs the processing involved in the terminal device in the method illustrated in FIG. 4 or FIG. 7 and/or other processes for the techniques described herein. The storage unit 1703 is used to store program codes and data of the terminal device 1700. In summary, the embodiment of the present application provides a method for configuring a secondary cell, a base station, and a terminal device. The solution provided by the embodiment of the present application can improve the utilization rate of the secondary cell. Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, system, or computer program product. Thus, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware. Moreover, the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. For implementation in a flow or a flow or a block diagram in a block or blocks Functional device.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present application without departing from the spirit and scope of the embodiments of the present application. Thus, it is intended that the present invention cover the modifications and variations of the embodiments of the present invention.

Claims

A secondary cell configuration method, comprising:

The first base station sends a first message to the terminal device, where the first message is used to indicate that the terminal device is switched from the RRC connection state to the idle state or the inactive INACTIVE state, and the first message carries the measurement configuration information. The measurement configuration information includes a plurality of carrier frequencies, where the measurement configuration information is used to indicate that the terminal device performs channel quality measurement on the multiple carrier frequencies, where the first base station is a primary cell of the terminal device. Corresponding base station;

Receiving, by the first base station, a second message that is sent by the terminal device after being converted from an idle state or an INACTIVE state to an RRC connected state, where the second message carries a measurement report, where the measurement report includes the terminal device The indication information of the N candidate cells that are selected after the channel quality measurement is performed by using multiple carrier frequencies, N≥1;

The first base station sends a third message to the terminal device according to the measurement report, where the third message includes secondary cell configuration information of the terminal device.
The method according to claim 1, wherein the plurality of carrier frequencies comprise a carrier frequency under the first base station and/or a carrier frequency under a second base station, and the second base station is a base station adjacent to a base station;

Before the first base station sends the first message to the terminal device, the method further includes:

The first base station receives a fourth message sent by the second base station or the core network, where the fourth message is used to indicate a carrier frequency under the second base station.
The method according to claim 1 or 2, further comprising: before the first base station sends the first message to the terminal device, the method further comprising:

The first base station receives a first indication message sent by the terminal device, where the first indication message is used to indicate that the terminal device has the capability of performing channel quality measurement in an idle state or an INACTIVE state.
The method according to any one of claims 1 to 3, further comprising: before the first base station sends the first message to the terminal device,

The first base station receives a second indication message sent by the core network, where the second indication message is used to indicate a service mode and/or a data packet interval of the terminal device.
The method according to any one of claims 1 to 4, wherein after the first base station receives the second message reported by the terminal device after being converted from an idle state or an INACTIVE state to an RRC connected state, include:

Receiving, by the first base station, a fifth message sent by the terminal device, where the fifth message is used to indicate that the measurement report has been generated;

The first base station sends a sixth message to the terminal device, where the sixth message is used to instruct the terminal device to report the measurement report.
The method according to any one of claims 1 to 5, wherein the measurement configuration information further comprises one or more of the following information:

a threshold for indicating a channel quality of a candidate cell reported by the physical layer of the terminal device to the RRC layer of the terminal device;

a trigger threshold, configured to indicate a threshold of channel quality of the N candidate cells;

The measurement time is used to indicate a start time of the channel quality measurement by the terminal device to the multiple carrier frequencies.
A secondary cell configuration method, comprising:

Receiving, by the terminal device, the first message sent by the first base station, where the first message is used to indicate that the terminal device is switched from an RRC connected state to an idle state or an INACTIVE state, where the first message carries measurement configuration information, and the measurement The configuration information includes a plurality of carrier frequencies, where the measurement configuration information is used to indicate that the terminal device performs channel quality measurement on the multiple carrier frequencies, where the first base station is a base station corresponding to the primary cell of the terminal device;

The terminal device converts the RRC connection state to the idle state or the INACTIVE state according to the first message, and performs channel quality measurement on the multiple carrier frequencies according to the measurement configuration information, so as to filter out N candidate cells;

Transmitting, by the terminal device, a second message to the first base station, where the second message carries a measurement report, where the measurement report includes the N candidate cells Indication information, N≥1;

The terminal device receives the third message sent by the first base station, where the third message includes the secondary cell configuration information of the terminal device.
The method according to claim 7, wherein the plurality of carrier frequencies comprise a carrier frequency under the first base station and/or a carrier frequency under a second base station, and the second base station is A base station adjacent to a base station.
The method according to claim 7 or 8, wherein before the terminal device receives the first message sent by the first base station, the method further includes:

The first indication message sent by the terminal device to the first base station, where the first indication message is used to indicate that the terminal device has the capability of performing channel quality measurement in an idle state or an INACTIVE state.
The method according to any one of claims 7 to 9, wherein before the terminal device sends the second message to the first base station, the method further includes:

Sending, by the terminal device, a fifth message to the first base station, where the fifth message is used to indicate that the measurement report has been generated;

The terminal device receives the sixth message sent by the first base station, where the sixth message is used to instruct the terminal device to report the measurement report.
A secondary cell configuration method, comprising:

The first base station corresponding to the primary cell sends a first message to the terminal device that is in the idle state or the INACTIVE state after accessing the primary cell, where the first message carries measurement configuration information, and the measurement configuration information includes multiple carriers. Frequency, the measurement configuration information is used to indicate that the terminal device performs channel quality measurement on the multiple carrier frequencies;

Receiving, by the first base station, a second message that is sent by the terminal device after being converted from an idle state or an INACTIVE state to an RRC connected state, where the second message carries a measurement report, where the measurement report includes the terminal device The indication information of the N candidate cells after the channel quality measurement is performed by using multiple carrier frequencies, N≥1;

The first base station sends a third message to the terminal device according to the measurement report, where the third message includes secondary cell configuration information of the terminal device.
The method according to claim 11, wherein the plurality of carrier frequencies comprise a carrier frequency under the first base station and/or a carrier frequency under a second base station, and the second base station is a base station adjacent to a base station;

Before the first base station corresponding to the primary cell sends the first message to the terminal device in the idle state or the INACTIVE state after accessing the primary cell, the method further includes:

The first base station receives a fourth message sent by the second base station or the core network, where the fourth message is used to indicate a carrier frequency under the second base station.
The method according to claim 11 or 12, further comprising: before the receiving, by the first base station, the second message that is reported after the terminal device is switched from the idle state or the INACTIVE state to the RRC connected state, the method further includes:

Receiving, by the first base station, a fifth message sent by the terminal device, where the fifth message is used to indicate that the measurement report has been generated;

The first base station sends a sixth message to the terminal device, where the sixth message is used to instruct the terminal device to report the measurement report.
The method according to any one of claims 11 to 13, wherein the measurement configuration information further comprises one or more of the following information:

a threshold for indicating a channel quality of a candidate cell reported by the physical layer of the terminal device to the RRC layer of the terminal device;

A trigger threshold is used to indicate a threshold of channel quality of the N candidate cells.
A secondary cell configuration method, comprising:

After receiving the primary cell, the terminal device in the idle state or the INACTIVE state receives the first message sent by the first base station corresponding to the primary cell, where the first message carries measurement configuration information, and the measurement configuration information includes multiple a carrier frequency, where the measurement configuration information is used to indicate that the terminal device performs channel quality measurement on the multiple carrier frequencies;

The terminal device performs channel quality measurement on the multiple carrier frequencies according to the measurement configuration information, to filter out N candidate cells;

Transmitting, by the terminal device, a second message to the first base station, where the second message carries a measurement report, where the measurement report includes the N candidate cells Indication information, N≥1;

The terminal device receives the third message sent by the first base station, where the third message includes the secondary cell configuration information of the terminal device.
The method according to claim 15, wherein the plurality of carrier frequencies comprise a carrier frequency under the first base station and/or a carrier frequency under a second base station, and the second base station is A base station adjacent to a base station.
The method according to claim 15 or 16, wherein before the terminal device sends the second message to the first base station, the method further includes:

Sending, by the terminal device, a fifth message to the first base station, where the fifth message is used to indicate that the measurement report has been generated;

The terminal device receives the sixth message sent by the first base station, where the sixth message is used to instruct the terminal device to report the measurement report.
The method according to any one of claims 15 to 17, wherein before the terminal device performs channel quality measurement on the plurality of carrier frequencies according to the measurement configuration information, the method further includes:

The terminal device determines that it has the capability to perform channel quality measurement in an idle state or an INACTIVE state.
A first base station, comprising:

a transmitter, configured to send a first message to the terminal device, where the first message is used to indicate that the terminal device is switched from an RRC connected state to an idle state or an INACTIVE state, where the first message carries measurement configuration information, The measurement configuration information includes a plurality of carrier frequencies, where the measurement configuration information is used to indicate that the terminal device performs channel quality measurement on the multiple carrier frequencies, where the first base station is a base station corresponding to the primary cell of the terminal device. ;

a receiver, configured to receive a second message that is sent by the terminal device after being converted from an idle state or an INACTIVE state to an RRC connected state, where the second message carries a measurement report, where the measurement report includes the terminal device The indication information of the N candidate cells that are selected after the channel quality measurement is performed by using multiple carrier frequencies, N≥1;

The transmitter is further configured to send, according to the measurement report, a third message to the terminal device, where the third message includes secondary cell configuration information of the terminal device.
The first base station according to claim 19, wherein the plurality of carrier frequencies comprise a carrier frequency under the first base station and/or a carrier frequency under a second base station, and the second base station is a base station adjacent to the first base station;

The receiver is also used to:

Before the sending, by the sender, the first message to the terminal device, receiving a fourth message sent by the second base station or the core network, where the fourth message is used to indicate a carrier frequency under the second base station.
The first base station according to claim 19 or 20, wherein the receiver is further configured to:

Before the sending, by the sender, the first message to the terminal device, the second indication message sent by the core network is received, where the second indication message is used to indicate a service mode and/or a data packet interval of the terminal device.
The first base station according to any one of claims 19 to 21, wherein the receiver is further configured to:

Receiving, by the terminal device, a fifth message sent by the terminal device, after receiving the second message reported by the terminal device after being converted from an idle state or an INACTIVE state to an RRC connected state, where the fifth message is used to indicate that the measurement report has been generate;

The transmitter is further configured to: send a sixth message to the terminal device, where the sixth message is used to instruct the terminal device to report the measurement report.
A terminal device, comprising:

a receiver, configured to receive a first message sent by the first base station, where the first message is used to indicate that the terminal device is switched from an RRC connected state to an idle state or an INACTIVE state, where the first message carries measurement configuration information, The measurement configuration information includes a plurality of carrier frequencies, where the measurement configuration information is used to indicate that the terminal device performs channel quality measurement on the multiple carrier frequencies, where the first base station is a primary cell corresponding to the terminal device. Base station

a processor, configured to: according to the first message, convert the terminal device from an RRC connected state to an idle state or an INACTIVE state, and perform channel quality measurement on the multiple carrier frequencies according to the measurement configuration information, to filter N candidate cells;

a transmitter, configured to send a second message to the first base station when the terminal device is switched from an idle state or an INACTIVE state to an RRC connected state, where the second message carries a measurement report, where the measurement report includes the The indication information of the N candidate cells, N≥1;

The receiver is further configured to receive a third message sent by the first base station, where the third message includes secondary cell configuration information of the terminal device.
The terminal device according to claim 23, wherein the plurality of carrier frequencies comprise a carrier frequency under the first base station and/or a carrier frequency under a second base station, and the second base station is A base station adjacent to the first base station.
The terminal device according to claim 23 or 24, wherein the transmitter is further configured to:

Before sending the second message to the first base station, sending, to the first base station, a fifth message, where the fifth message is used to indicate that the measurement report has been generated;

The receiver is also used to:

Receiving a sixth message sent by the first base station, where the sixth message is used to instruct the terminal device to report the measurement report.
A first base station, comprising:

a transmitter, configured to send a first message to a terminal device that is in an idle state or an INACTIVE state after accessing the primary cell, where the first message carries measurement configuration information, where the measurement configuration information includes multiple carrier frequencies, The measurement configuration information is used to indicate that the terminal device performs channel quality measurement on the multiple carrier frequencies, where the first base station is a base station corresponding to the primary cell of the terminal device;

a receiver, configured to receive a second message that is sent by the terminal device after being converted from an idle state or an INACTIVE state to an RRC connected state, where the second message carries a measurement report, where the measurement report includes the terminal device The indication information of the N candidate cells after the channel quality measurement is performed by using multiple carrier frequencies, N≥1;

The transmitter is further configured to send a third message to the terminal device according to the measurement report, where the third message includes secondary cell configuration information of the terminal device.
The first base station according to claim 26, wherein the plurality of carrier frequencies comprise a carrier frequency under the first base station and/or a carrier frequency under a second base station, and the second base station is a a base station adjacent to the first base station;

The receiver is also used to:

Receiving a fourth message sent by the second base station or the core network, where the fourth message is sent by the second base station or the core network, after the first device sends the first message to the terminal device that is in the idle state or the INACTIVE state after accessing the primary cell. The carrier frequency under the second base station.
The first base station according to claim 26 or 27, wherein the receiver is further configured to:

Receiving a fifth message sent by the terminal device, where the fifth message is used to indicate that the measurement report has been generated, before receiving the second message that is reported after the terminal device is switched from the idle state or the INACTIVE state to the RRC connected state. ;

The transmitter is also used to:

Sending a sixth message to the terminal device, where the sixth message is used to instruct the terminal device to report the measurement report.
A terminal device, comprising:

a receiver, configured to receive a first message sent by the first base station corresponding to the primary cell when the terminal device is in an idle state or an INACTIVE state, where the first message carries measurement configuration information, where The measurement configuration information includes a plurality of carrier frequencies, where the measurement configuration information is used to instruct the terminal device to perform channel quality measurement on the multiple carrier frequencies;

a processor, configured to perform channel quality measurement on the multiple carrier frequencies according to the measurement configuration information, to filter out N candidate cells;

a transmitter, configured to send, by the terminal device, a second message to the first base station when the state is changed from an idle state or an INACTIVE state to an RRC connected state, where the second message carries a measurement report, where the measurement report includes the The indication information of the N candidate cells, N≥1;

The receiver is further configured to receive a third message sent by the first base station, where the third message includes secondary cell configuration information of the terminal device.
The terminal device according to claim 29, wherein the transmitter is further configured to:

Before sending the second message to the first base station, sending, to the first base station, a fifth message, where the fifth message is used to indicate that the measurement report has been generated;

The receiver is also used to:

Receiving a sixth message sent by the first base station, where the sixth message is used to instruct the terminal device to report the measurement report.