WO2009149660A1

WO2009149660A1 - Measurement reporting method, system, network device and terminal based on multi-carrier

Info

Publication number: WO2009149660A1
Application number: PCT/CN2009/072218
Authority: WO
Inventors: 王茂吉; 张屹; 马洁; 马小飞; 陈君
Original assignee: 华为技术有限公司
Priority date: 2008-06-13
Filing date: 2009-06-11
Publication date: 2009-12-17
Also published as: CN101605352B; CN101605352A

Abstract

A method, a system, a network device and a terminal based on multi-carrier, the method includes: receiving the measurement control message which comprises the measurement information of a primary carrier frequency and an auxiliary carrier frequency (101); measuring the primary carrier frequency and the auxiliary carrier frequency according to the measurement control message (102); reporting the measurement result and the carrier frequency corresponding to the measurement result (103). By applying the embodiments of the present invention, the terminals can perform not only the measurement of the primary carrier frequency, but also the intra-frequency measurement of all auxiliary carrier frequencies which the terminal is using, the network side can maintain the information about the auxiliary carrier frequency according to the measurement result of the auxiliary carrier frequency, the accuracy of the judgment of the terminal side mobility by the network side of the multi-carrier system is correspondingly improved.

Description

Multi-carrier based measurement reporting method, system, network device and terminal The application is submitted to the Chinese Patent Office on June 13, 2008, and the application number is 200810111296.9, and the invention name is "multi-carrier based measurement reporting method, system, network device" And the Chinese patent application of the terminal, and the priority granted to the Chinese Patent Office on August 11, 2008, the application number is 200810210229.2, and the invention name is "multi-carrier based measurement reporting method, system, network device and terminal", The entire contents are incorporated herein by reference.

Technical field

The present invention relates to the field of communications technologies, and in particular, to a multi-carrier based measurement reporting method, system, network device, and terminal. Background of the invention

HSPACHigh Speed Packet Access (High Speed Packet Access) technology is applicable to WCDMA (Wideband Code Division Multiple Access) FDD (Frequency Division Duplex), UTRA (Universal Telecommunication Radio Access) Different transmission modes, such as In), TDD (Time Division Duplex), and TD-SCDMA (Time Division-Synchronous CDMA, Time Division Synchronous Code Division Multiple Access). The HSPA is usually carried on a single carrier frequency. When the network side needs the terminal to perform dedicated measurement, the terminal performs intra-frequency measurement on the carrier frequency, and the measurement includes measuring the same-frequency neighboring cell of the current best cell of the terminal, and currently the most The inter-frequency neighboring cell of the good cell performs measurement.

In order to improve the data transmission rate of the existing single carrier frequency system and reduce the data transmission delay, multiple carrier frequencies are bundled for carrying HSPA data. This technology is called MC-HSPA (Multi-carrier HSPA, multi-carrier). High speed packet access). In a multi-carrier system, multiple carrier frequencies can be used for both uplink and downlink transmissions. Multiple carrier frequencies are divided into one primary carrier frequency and several secondary carrier frequencies according to different bearer content. Both the primary carrier frequency and the secondary carrier frequency can be carried. HSDPA (High Speed Downlink Packet Access) service.

The inventors found in the course of research on the prior art that the prior art has at least the following disadvantages:

In the multi-carrier system MC-HSPA, the UE only performs intra-frequency measurement on the primary carrier frequency when performing measurement, which will result in the network side failing to maintain information related to the secondary carrier frequency according to the signal quality of the secondary carrier, reducing the network side. The accuracy of the terminal side mobility decision. Summary of the invention

The embodiment of the present invention provides a multi-carrier based measurement reporting method, system, network device, and terminal, so that a terminal in a multi-carrier system can report related information of a secondary carrier frequency to a network side, and improve network side-to-terminal mobility. The accuracy of the judgment.

The embodiments of the present invention provide the following technical solutions:

A multi-carrier based measurement reporting method includes: receiving a measurement control message, where the measurement control message includes measurement information of a primary carrier frequency and a secondary carrier frequency; and measuring the primary carrier frequency and the secondary carrier frequency according to the measurement control message ; Report the measurement results and the carrier frequency corresponding to the above measurement results.

A multi-carrier-based measurement reporting system, comprising: a network device and a terminal, where the network device is configured to send, when the terminal accesses the network, a measurement control message to the terminal, where the measurement control message includes a primary carrier frequency and a secondary The measurement information of the carrier frequency is used to measure the primary carrier frequency and the secondary carrier frequency according to the measurement control message, and report the measurement result and the carrier frequency corresponding to the measurement result to the network device.

A network device, comprising: a determining unit, configured to determine whether a terminal accesses a network; and a sending unit, configured to be used as the terminal When accessing the foregoing network, sending a measurement control message to the terminal, where the measurement control message includes measurement information of a primary carrier frequency and a secondary carrier frequency

A terminal, comprising: a receiving unit, configured to receive a measurement control message, where the measurement control message includes measurement information of a primary carrier frequency and a secondary carrier frequency; and a measurement unit, configured to perform, according to the foregoing measurement control message, the primary carrier frequency and the auxiliary The carrier frequency is measured; the reporting unit is configured to report the measured result and the carrier frequency corresponding to the above measurement result.

According to the technical solution provided by the foregoing embodiment of the present invention, in the embodiment of the present invention, the measurement control message is received, where the measurement control message includes measurement information of a primary carrier frequency and a secondary carrier frequency, and the primary carrier frequency is compared according to the measurement control message. The auxiliary carrier frequency is measured, and the measurement result and the carrier frequency corresponding to the above measurement result are reported. The embodiment of the present invention is applied to a multi-carrier system. In addition to performing intra-frequency measurement on the primary carrier frequency, the terminal may also perform intra-frequency measurement on all secondary carrier frequencies being used by the terminal, and the network side may be based on the secondary carrier frequency. The measurement results maintain the information related to the secondary carrier frequency, and correspondingly improve the accuracy of the network side to terminal side mobility decision in the multi-carrier system.

BRIEF DESCRIPTION OF THE DRAWINGS

1 is a schematic flowchart of a measurement reporting method according to Embodiment 1 of the present invention;

2 is a schematic flowchart of a measurement reporting method according to Embodiment 2 of the present invention;

FIG. 3 is a schematic structural diagram of an application of a measurement reporting method according to an embodiment of the present disclosure;

4 is a schematic flowchart of a measurement reporting method according to Embodiment 3 of the present invention;

FIG. 5 is a schematic flowchart of a measurement reporting method according to Embodiment 4 of the present invention;

6 is a schematic block diagram of a measurement reporting system according to Embodiment 5 of the present invention;

7 is a schematic block diagram of a network device according to Embodiment 6 of the present invention;

8 is a schematic block diagram of another network device according to Embodiment 6 of the present invention;

9 is a schematic block diagram of a terminal according to Embodiment 7 of the present invention;

FIG. 10 is a schematic block diagram of another terminal according to Embodiment 7 of the present invention; FIG.

FIG. 11 is a schematic flowchart diagram of a measurement reporting method according to Embodiment 8 of the present invention.

Mode for carrying out the invention

The embodiment of the invention provides a measurement reporting method, a system, a network side device and a terminal based on a multi-carrier system, and the terminal receives a measurement control message sent by the network side, where the measurement control message includes a measurement of a primary carrier frequency and a secondary carrier frequency. And measuring the primary carrier frequency and the secondary carrier frequency according to the foregoing measurement control message, and reporting the measurement result and the corresponding carrier frequency to the network side.

The technical solutions provided by the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Embodiment 1

The flow of the multi-carrier-based measurement reporting method provided in this embodiment is as shown in FIG. 1. This embodiment shows the measurement reporting process when the terminal accesses the network side. The specific steps are as follows:

Step 101: Receive a measurement control message sent by the network side, where the measurement control message includes measurement information of a primary carrier frequency and a secondary carrier frequency.

The measurement control message includes frequency information of the primary carrier frequency, an intra-frequency measurement cell of the primary carrier frequency, and an intra-frequency measurement signal of the secondary carrier frequency. The cells of the secondary carrier frequency correspond to the frequency information of the carrier frequency.

Specifically, when the measurement result of the secondary carrier frequency is irrelevant to the mobility decision, the foregoing measurement control message indicates that the secondary carrier frequency is not determined. Step 102: The primary carrier frequency and the secondary carrier frequency are measured according to the measurement control message.

Wherein, measuring the primary carrier frequency and the secondary carrier frequency includes performing intra-frequency measurement and inter-frequency measurement.

Step 103: Report the measurement result and the carrier frequency corresponding to the measurement result to the network side.

The measurement result includes at least the signal quality of all used primary carrier frequency cells and the signal quality of all used secondary carrier frequency cells.

It should be noted that, when the measurement control message of step 101 indicates that the secondary carrier frequency is not measured, the secondary carrier frequency does not need to be measured in step 102. Correspondingly, the measurement result reported in step 103 does not include the auxiliary. Signal quality of the carrier frequency cell.

It can be seen from the foregoing embodiment that the terminal can perform intra-frequency measurement on the primary carrier frequency and the secondary carrier frequency at the same time, and the network side can maintain information related to the secondary carrier frequency according to the measurement result of the secondary carrier frequency, thereby improving the multi-carrier system. The accuracy of the network side to the terminal side mobility decision. Embodiment 2

The flow of the multi-carrier-based measurement reporting method provided in this embodiment is shown in FIG. 2. Compared with the first embodiment, this embodiment further shows the measurement reporting process after the terminal accesses the network side. The specific steps are as follows:

Step 201: Receive a measurement control message sent by the network side, where the measurement control message includes measurement information of a primary carrier frequency and a secondary carrier frequency.

The measurement control message includes frequency point information of the primary carrier frequency, an intra-frequency measurement cell of the primary carrier frequency, an intra-frequency measurement cell of the secondary carrier frequency, and frequency information of the carrier frequency corresponding to each carrier of the secondary carrier frequency.

Step 202: Measure the primary carrier frequency and the secondary carrier frequency according to the measurement control message.

Specifically, the cells corresponding to the primary carrier frequency and the secondary carrier frequency that are being used by the terminal are measured, the signal quality of the foregoing cell is obtained, and whether the measurement event reporting condition is satisfied is evaluated.

Step 203: Report the measurement result and the carrier frequency corresponding to the measurement result to the network side.

Specifically, the signal quality of the primary carrier frequency cell is reported to the network side, and is reported to the network side for the primary carrier frequency activation set maintenance, the best cell maintenance, and the unused carrier frequency according to the signal quality of the primary carrier frequency cell. The event that was measured.

Reporting the signal quality of the secondary carrier frequency cell to the network side, and reporting the 2d event to the network side when the signal quality of the secondary carrier frequency cell is lower than the threshold, when the signal quality of the secondary carrier frequency cell is higher than the threshold When the limit is reached, the network component is reported to the network side; or the signal quality of the secondary carrier frequency cell is reported to the network side, and is reported to the network side for the secondary carrier frequency activation set maintenance according to the signal quality of the secondary carrier frequency cell. Best cell maintenance, and events that measure unused carrier frequencies.

The various measurement results are reported to the network side in the corresponding event manner. First, various events involved in the measurement reporting process are introduced. These events include lx events, that is, a general term for various intra-frequency measurement events, and 2x events. A general term for various inter-frequency measurement events. The lx event is further subdivided into: la event, indicating that a dominant frequency signal quality is higher than a relative threshold; lb event, indicating that a dominant frequency signal quality is lower than a relative threshold; lc event, indicating an inactive set dominant frequency signal Quality is higher than one The active set pilot frequency signal quality; Id event, indicating the best cell change; le event, indicating that the dominant frequency signal quality is above an absolute threshold; lf», indicating that the dominant frequency signal quality is below an absolute threshold. The 2x event is further subdivided into: 2a event, indicating the best frequency change; 2b event, indicating that the currently used carrier frequency signal quality is below an absolute threshold, and the unused frequency signal quality is above an absolute threshold; 2c Event, indicating that an unused frequency signal quality is above an absolute threshold; 2d event, indicating that the signal quality of the currently used frequency is below an absolute threshold; 2f», indicating that the currently used frequency signal quality is above an absolute threshold.

Step 204: Determine whether the signal quality of the primary carrier frequency or the secondary carrier frequency is lower than the threshold. If yes, execute step 205; otherwise, terminate the process, that is, the process of measuring the non-used carrier frequency is not performed.

It should be noted that when the signal quality of the secondary carrier frequency is lower than the threshold value, the process of measuring the non-use carrier frequency may not be performed.

Step 205: Receive a measurement control message sent by the network side to measure the non-used carrier frequency.

Step 206: The transceiver measures the non-use carrier frequency.

Since the terminal is to measure the non-use carrier frequency, it must follow the principle that one carrier frequency cannot be measured by multiple transceivers. This principle is to prevent multiple transceivers from measuring the same non-use carrier frequency, resulting in Repeated measurements of this non-use carrier frequency. Therefore, each transceiver of the terminal can measure the unused carrier frequency, but a non-use carrier frequency can only be measured by one transceiver for a period of time, that is, only one transceiver can be used for a period of time. The signal measures all non-use carrier frequencies, that is, if the terminal has idle transceivers, select one of the idle transceivers to measure the non-use carrier frequency. If the terminal does not have an idle transceiver, select one. The transceiver being used, after starting the compressed mode, the non-use carrier frequency is measured, and the idle transceiver measures the non-use carrier frequency; or the transceiver corresponding to the main carrier frequency starts the compression mode. The non-use carrier frequency is measured; or the non-use carrier frequency is measured after any transceiver corresponding to the auxiliary carrier frequency starts the compression mode; or the transceiver corresponding to the main carrier frequency, corresponding to the auxiliary carrier frequency The transceiver and idle transceiver measure different non-use carrier frequencies, respectively.

Step 207: Send the measurement result of the non-use carrier frequency to the network side.

Specifically, when the signal quality of the non-used carrier frequency is higher than the threshold, and the signal quality of the carrier frequency is lower than the threshold, the 2b event is reported; or when the signal quality of the non-use carrier is higher than the threshold When the limit is reached, the 2c event is reported.

It can be seen from the foregoing embodiment that the terminal can perform intra-frequency measurement on the primary carrier frequency and intra-frequency measurement on all auxiliary carrier frequencies used by the terminal, and measure the non-use carrier frequency, and the network side can The measurement results of the secondary carrier frequency and the measurement results of the non-use carrier frequency maintain the related information, which improves the accuracy of the network side to terminal side mobility decision in the multi-carrier system. Embodiment 3

The flow of the multi-carrier-based measurement reporting method provided in this embodiment is as shown in FIG. 4 . This embodiment will be described in conjunction with the dual-carrier HSDPA system application scenario shown in FIG. 3 , and the networking structure shown in FIG. 3 . The terminal is a terminal with multi-carrier capability, the frequency of the cell 1 and the cell 3 is fl, the frequency of the cell 2 and the cell 4 is f2, the cell 1 (fl is the main carrier frequency) and the cell 2 (the G is the auxiliary The carrier frequency is multi-carrier paired, and the cell 3 and the cell 4 perform multi-carrier pairing. The two paired cells are applied to the downlink HS-DSCH, belong to the same base station, and use the same transmit antenna. The process of measuring and reporting by the terminal when the embodiment of the method of the present invention is applied to the dual-carrier HSDPA system is described in detail below:

Step 401: The terminal accesses the network.

Step 402: The network side sends a measurement control message, such as a Measurement Control, to the terminal.

The network side may add a related field in the Measurement Control message to identify the following information: a primary carrier frequency used by the terminal; and a primary carrier frequency and a secondary carrier frequency used by the terminal, each constructing an intra-frequency measurement cell; The frequency of the frequency measurement; the cell that does not use the carrier frequency is placed in the inter-frequency measurement cell list.

Specifically, the primary carrier frequency information (for example, Primary Frequency) of the Measurement Control message is filled with information of the primary carrier frequency fl, and fl and S respectively have intra-frequency measurement cells (for example, intra-frequency measurement). The carrier frequency information fl and β are distinguished, wherein the cell measurement list in the intra-frequency measurement cell of f2, for example, the cell for for the f2 only includes the serving cell, and only the inter-frequency measurement event is reported, and the frequency is not performed. The reporting of the internal measurement event; the inter-frequency measurement reporting event cell (for example, the inter-frequency measurement reporting criteria) in the inter-frequency measurement cell (for example, the inter-frequency measurement reporting criteria) includes only the 2a, 2d, and 2 library components.

Step 403: The terminal performs intra-frequency and inter-frequency measurement on the primary carrier frequency and the secondary carrier frequency that are being used according to the content added in the relevant domain in the received measurement control message.

After receiving the Measurement Control message, the terminal separately measures the primary carrier frequency zone corresponding to the primary carrier frequency fl and the secondary carrier frequency cell corresponding to the secondary carrier frequency G through two transceivers.

The main carrier frequency fl reporting event rule is the same as the existing intra-frequency measurement and inter-frequency measurement rule, that is, the lx event, the 2d event, and the 2f» component are reported according to the signal quality of the cell 1, and the network side performs the maintenance of the active set, The maintenance and startup of the good cell is used to report the 2d event and 2f» according to the signal quality of the cell 2 for the unused carrier frequency secondary carrier frequency β, for adding and deleting the secondary carrier frequency. Since the secondary carrier frequency is only HSDPA-related links, there is no need to maintain the active set, so it is not necessary to report la events, lb events, and lc events. In the existing dual-carrier HSDPA system, the paired primary carrier frequency serving cell and the secondary carrier frequency serving cell can only use one antenna, and one antenna cannot transmit two cell signals on one carrier frequency, so it is impossible to appear as the main The carrier frequency serving cell remains unchanged, and the secondary carrier frequency performs the same-frequency service cell update. Therefore, the secondary carrier frequency f2 does not need to report the Id event.

Step 404: The terminal triggers measurement event reporting according to different measurement results.

When the measurement report is reported after the measurement event is triggered, at least the signal quality of all cells using the carrier frequency is reported, that is, at least the cell measured on the primary carrier frequency fl and the signal quality of the cell measured on the secondary carrier frequency G are reported.

The main carrier frequency fl reports the intra-frequency measurement event according to the intra-frequency measurement result, so that the main carrier frequency is used for the activation set maintenance and the update of the serving cell. If the best carrier frequency of the primary carrier frequency fl and the secondary carrier frequency G changes, the 2a event is reported, and the corresponding measurement report contains the information of the new best carrier frequency and the information of the previous best carrier frequency; When the signal quality of fl or auxiliary carrier frequency G is lower than a certain threshold, the 2d event is reported; when the signal quality of the primary carrier frequency fl or the secondary carrier frequency G is higher than a certain threshold, 2f» is reported.

Step 405: The network side confirms that the terminal main carrier frequency reports the 2d event.

Step 406: The network side sends a measurement control message for the 2d event to the terminal. The terminal reports a 2d event for the primary carrier frequency fl. At this time, the signal quality of the primary carrier frequency fl is lower than a certain threshold. Therefore, the network side sends a new measurement control message to the terminal, requesting the terminal to measure the non-use frequency. At the same time, the intra-frequency measurements remain unchanged.

Specifically, the inter-frequency reporting criteria cell in the inter-frequency measurement cell includes a 2a event, a 2b event, a 2c event, a 2d event, and a 2 element, and the range of the measured non-use carrier frequency cell is not limited to the main The carrier frequency fl serves the serving cell 2 to which the cell 1 is paired.

Step 407: The terminal performs measurement of the non-use frequency according to the received measurement control message.

The terminal can start the compression mode on the transceiver corresponding to the primary carrier frequency fl or the transceiver corresponding to the secondary carrier frequency β, and measure the non-use carrier frequency. Since each transceiver of the FDD system can only operate on one carrier frequency at a time, if the transceiver is to be used to measure signals of other carrier frequencies, the compression mode is started. Also, since a carrier frequency is not allowed to be measured by multiple transceivers for a period of time, it is avoided to be repeatedly measured. Therefore, when performing measurement of non-use carrier frequency, all non-use carrier frequency measurements can be performed using only one transceiver, that is, through one of the main carrier frequency fl transceiver or the auxiliary carrier frequency S transceiver. The carrier frequency is used for measurement; the main carrier frequency fl transceiver and the auxiliary carrier frequency s transceiver can also be used to simultaneously measure different non-use carrier frequencies, and the measurement needs to ensure that the same non-use carrier frequency is not repeatedly measured.

Step 408: The terminal triggers the inter-frequency measurement event report according to the measurement result of the non-use carrier frequency.

The terminal reports the 2b event and the 2c event to the network side according to the measurement result of the non-used carrier frequency. At the same time, the terminal can also report the inter-frequency measurement event corresponding to the main carrier frequency fl and the auxiliary carrier frequency β to the network side, including 2a events, 2d events, 2f» pieces, and the like.

It can be seen from the foregoing embodiment that the terminal can perform intra-frequency measurement on all the secondary carrier frequencies that are being used, and the network side can maintain information related to the secondary carrier frequency according to the measurement result of the secondary carrier frequency, thereby improving the network in the multi-carrier system. The accuracy of the side-to-terminal mobility decision. Embodiment 4

In addition to being applicable to a dual-carrier HSDPA system, the embodiment of the present invention can also be applied to a system in which both uplink and downlink are multi-carrier, for example, a scenario of downlink m carriers and uplink n carriers, where m is greater than 2, n Greater than 2, and m is greater than or equal to n. As shown in FIG. 5, this embodiment describes in detail the process of the terminal performing measurement reporting when the method embodiment of the present invention is applied to a multi-carrier system. In the multi-carrier system, there may be multiple secondary carrier frequencies paired with the primary carrier frequency, and the secondary carrier with the paired carrier frequency needs to maintain the active set, and the secondary carrier frequency service paired with the primary carrier frequency serving cell There are also a plurality of cells, so the difference between this embodiment and the third embodiment is that the secondary carrier frequency reporting event is required.

Step 501: The terminal accesses the network.

Step 502: The network side sends a measurement control message, such as a Measurement Control, to the terminal.

The measurement control message includes frequency point information of the primary carrier frequency; one intra-frequency measurement cell is provided for the primary carrier frequency and each secondary carrier frequency; the carrier frequency information is indicated in each frequency measurement cell; The cell of the carrier frequency is written to the inter-frequency measurement cell list.

It should be noted that, in order to optimize the measurement process, the network side may reduce useless measurements according to the multi-carrier cell pairing relationship, that is, the measurement cell list in the measurement control message includes only the auxiliary carrier paired with the primary carrier frequency serving cell. Frequency service cell, and Does not include other unpaired secondary carrier frequency serving cells.

If the event triggered by the secondary carrier frequency has no effect on the mobility decision of the network side, the corresponding event is also not reported in the measurement control message. For example, when the terminal uses one primary carrier frequency and only the HSDPA channel on the secondary carrier frequency, since the HSDPA channel does not need to maintain the active set, the LA event, the lb event, and the lc event can be set in the measurement control message; When an event is triggered at the same time or the interval of the trigger event is less than a certain threshold, it is required to send the measurement results of the two events in one measurement report, thereby reducing the reported measurement report.

Step 503: The terminal performs intra-frequency measurement and inter-frequency measurement on the primary carrier frequency and the secondary carrier frequency being used.

The main carrier frequency performs intra-frequency measurement and inter-frequency measurement, that is, the lx event, 2d event, and 2f» are reported according to the signal quality of the primary carrier frequency cell, so that the network side performs maintenance of the active set, and the best cell maintenance and startup is not performed. The measurement of the frequency of use.

The secondary carrier frequency is also subjected to intra-frequency measurement and inter-frequency measurement, that is, the lx event, the 2d event, and the signal quality are reported according to the signal quality of the secondary carrier frequency cell.

2 conditions, for the network side to perform the active set maintenance, the best cell and the start of the unused carrier frequency measurement.

Step 504: The terminal reports a measurement report including the measurement result to the network side.

After measuring the carrier frequency cell that needs to be measured specified in the measurement control message, the measurement report contains the corresponding event and the carrier frequency corresponding to the event. Among them, lx event, 2d event and 2f» are only related to each carrier frequency; 2b event is related to each carrier frequency and a non-use carrier frequency; 2c event is related to non-use carrier frequency; 2a event and current The best carrier frequency is related to a non-best carrier frequency that will replace the best carrier frequency. The carrier frequency to replace the best carrier frequency may be the carrier frequency being used or the non-use carrier frequency.

Specifically, in the intra-frequency measurement result list (for example, an intra-frequency measured results list) including the carrier frequency cell measurement result that the terminal is using, the carrier frequency information is added to distinguish the carrier frequency used and the unused carrier frequency. Increase the information of the trigger carrier frequency in inter-frequency measurement event results (such as inter-frequency measurement event results). Since there are multiple auxiliary carrier frequencies, it is also necessary to increase the information of the trigger carrier frequency in the intra-frequency measurement event results (for example, in the intra-frequency measurement event results), where, for the 2a event, the original information is written in the information of the trigger carrier frequency. The best carrier frequency; for the 2b event, write a carrier frequency that is being used in the information of the trigger carrier frequency, the carrier frequency is below a certain threshold; for 2c, 2d and 2f», the carrier frequency is triggered No carrier frequency is written in the message.

If the measurement report reported by the terminal includes a 2d event, the network side needs to send a measurement control message to the terminal to measure the non-used carrier frequency. The process is the same as that in the third embodiment, and is not described here.

It can be seen from the foregoing embodiment that the terminal in the multi-carrier system can perform intra-frequency measurement on the primary carrier frequency and all the secondary carrier frequencies being used, and the network side can maintain the information related to the secondary carrier frequency according to the measurement result of the secondary carrier frequency. , improving the accuracy of the network side to the terminal side mobility decision. Corresponding to the embodiment of the multi-carrier based measurement reporting method of the present invention, the present invention also discloses an embodiment of a multi-carrier based measurement reporting system, a network device and a terminal.

Embodiment 5

This embodiment provides a multi-carrier based measurement reporting system. As shown in FIG. 6, the system includes: a network device 610 and a terminal 620. The network device 610 is configured to send a measurement control message to the terminal 620 when the terminal 620 accesses the network, where the measurement control message includes measurement information of a primary carrier frequency and a secondary carrier frequency; and the terminal 620 is configured to use the foregoing measurement The control message measures the primary carrier frequency and the secondary carrier frequency, and reports the measurement result and the carrier frequency corresponding to the measurement result to the network device 610.

It can be seen from the foregoing embodiment that the terminal in the multi-carrier system can perform intra-frequency measurement on the primary carrier frequency and all the secondary carrier frequencies being used, and the network device can perform maintenance on the information related to the secondary carrier frequency according to the measurement result of the secondary carrier frequency. , improved the accuracy of the terminal side mobility decision. Embodiment 6

The embodiment provides a multi-carrier based network device. As shown in FIG. 7, the network device includes: a determining unit 710 and a sending unit 720.

The determining unit 710 is configured to determine whether the terminal accesses the network. The sending unit 720 is configured to send, when the terminal accesses the network, a measurement control message to the terminal, where the measurement control message includes a primary carrier frequency and a secondary carrier frequency. Measurement information.

This embodiment further provides another multi-carrier based network device. As shown in FIG. 8, the network device includes: a determining unit 810, a sending unit 820, and a receiving unit 830.

The determining unit 810 is configured to determine whether the terminal accesses the network. The sending unit 820 is configured to send, when the terminal accesses the network, a measurement control message to the terminal, where the measurement control message includes a primary carrier frequency and a secondary carrier frequency. The receiving unit 830 is configured to receive the measurement result reported by the terminal and the carrier frequency corresponding to the measurement result. The sending unit 820 is further configured to: when the measurement result is that the signal quality of the primary carrier frequency or the secondary carrier frequency is lower than the gate At the limit value, a measurement control message for measuring the non-used carrier frequency is transmitted to the above terminal.

The network device in the foregoing sixth embodiment may be specifically a base station or a RNC (Radio Network Controller) in the network side. It can be seen from the foregoing embodiment that the network device in the multi-carrier system can maintain information related to the secondary carrier frequency according to the measurement result of the secondary carrier frequency, thereby improving the accuracy of the terminal-side mobility decision. Example 7

The present embodiment provides a terminal. As shown in FIG. 9, the terminal includes: a receiving unit 910, a measuring unit 920, and a reporting unit 930. The receiving unit 910 is configured to receive a measurement control message, where the measurement control message includes measurement information of a primary carrier frequency and a secondary carrier frequency, and the measurement unit 920 is configured to measure the primary carrier frequency and the secondary carrier frequency according to the measurement control message. The reporting unit 930 is configured to report the measurement result and the carrier frequency corresponding to the measurement result.

This embodiment further provides another terminal. As shown in FIG. 10, the terminal includes: a receiving unit 1010, a measuring unit 1020, a reporting unit 1030, and a starting unit 1040.

The receiving unit 1010 is configured to receive a measurement control message, where the measurement control message includes measurement information of a primary carrier frequency and a secondary carrier frequency. The measuring unit 1020 includes a primary carrier frequency measuring unit 1021 for measuring the signal quality of the primary carrier frequency cell, and a secondary carrier frequency measuring unit 1022 for measuring the signal quality of the secondary carrier frequency cell.

The reporting unit 1030 includes a primary carrier frequency reporting unit 1031, configured to report the signal quality of the primary carrier frequency cell, and report the signal quality of the primary carrier frequency cell for the primary carrier frequency activation set maintenance, the best cell maintenance, and the An event that is measured using a carrier frequency; The first secondary carrier frequency reporting unit 1032 is configured to report the signal quality of the secondary carrier frequency cell when only one secondary carrier frequency matched with the primary carrier frequency is used, and when the signal quality of the secondary carrier frequency cell is lower than a threshold When the value is reported, the 2d event is reported. When the signal quality of the secondary carrier frequency cell is higher than the threshold value, the 2f» component is reported; the second secondary carrier frequency reporting unit 1033 is configured to have at least two pairs with the primary carrier frequency. When the secondary carrier frequency is used, the signal quality of the secondary carrier frequency cell is reported, and the secondary carrier frequency activation set maintenance, the best cell maintenance, and the measurement of the unused carrier frequency are reported according to the signal quality of the secondary carrier frequency cell. The reporting unit 1030 may include only one of the first secondary carrier frequency reporting unit 1032 and the second secondary carrier frequency reporting unit 1033.

The receiving unit 1010 is further configured to: when the signal quality of the primary carrier frequency or the secondary carrier frequency is lower than a threshold, receive a measurement control message for measuring the non-use carrier frequency; and the starting unit 1040 is configured to use the transceiver pair. The above-mentioned non-use carrier frequency is used for measurement; the reporting unit 1030 is further configured to report the measurement result of the non-use carrier frequency.

The measurement control message received by the receiving unit 1010 further includes neighboring area measurement information and a trigger condition Id for changing the best cell event;

The measuring unit 1020 is further configured to: perform measurement on a frequency point of the neighboring cell according to the neighboring area measurement information; and the reporting unit 1030 is further configured to: if the measurement result meets a trigger condition of the changed best cell event, the reporting unit Describe the best cell event.

It can be seen from the above embodiment that the terminal in the multi-carrier system can perform intra-frequency measurement on the primary carrier frequency and all the secondary carrier frequencies being used, which provides an accurate basis for the mobility decision.

It can be seen from the foregoing embodiment that the network device in the multi-carrier system can maintain the information related to the secondary carrier frequency according to the measurement result of the secondary carrier frequency, thereby improving the accuracy of the terminal-side mobility decision. Example eight

The multi-carrier based measurement reporting method provided in this embodiment is as shown in FIG. 11, and the specific steps are as follows:

Step 1101: Receive a measurement control message sent by the network side, where the measurement control message includes measurement information of a cell corresponding to the primary carrier frequency and the secondary carrier frequency, and measurement information of the neighboring cell and a trigger condition for changing the best cell event (gPld event). .

The triggering conditions of the existing Id event are optimized in the embodiment of the present invention. The triggering conditions of the Id event in the embodiment of the present invention include the following scenarios:

Scenario 1: A UE that supports DC (dual cell) currently uses only one frequency point. In this case, the serving cell of the UE is not a multi-carrier cell (also called a sector, sector) or the upper layer is not configured with the UE. DC technology. A multi-carrier cell and a single-carrier cell exist in the neighboring cell of the UE. It is assumed that the frequency used by the UE is fl, and the frequency of the multi-carrier cell in the neighboring cell can be used as fl and f2, and the measured quantity is the path. The loss pathloss, the trigger condition of the multi-carrier cell Id event is that the measurement result of the multi-carrier cell at the two frequency points fl and G satisfies the following formulas 1 and 2 at the same time, or both formulas 1 and 3 are satisfied.

Formula 1 : ^10Lo g ^M NotBe _St> fl + CIO _NotBest>fl ≤ 10LogM _Best>fl + CIO _Bestjfl - Hl _ld /2 Equation _2: lOLogM _est , _fl + CIO _NotBestjfl ≤ 10LogM _Best>fl + CIO _Best>fl - H2 _Ld /2 Equation 3: ^10Lo g ^M NotBe _{St> s} + CIO _NotBest>s ≤ 10LogM _{Best fl} + CIO _Bes ^ - H2 _ld /2

If the measured quantity is RSCP (received signal code power) or Ec/NO (signal-to-interference ratio), then the above formulas 1, 2, and 3 respectively Replace with:

Formula 1 ^10L °g ^M NotBe _St> fl + CIO _NotBestjfl > 10LogM _Best>fl + CIO _Best>fl + Hl _ld /2 Equation 2,: ^10L g ^M + CIO _est , _fl ≥10LogM _{Best> fl} + CIO _Best , _fl + H2 _ld /2 Equation 3 ^10Lo g ^M ≥ 10LogM _Bestjfl + CIO _Bestjfl + H2 _ld /2

The trigger condition of the multi-carrier cell Id event is that the measurement result of the multi-carrier cell at the two frequency points fl and f2 satisfies the above formulas Γ and 2', or both formulas Γ and 3'.

Among them, M _N . _Fflest , _fl indicates the measurement result of the current non-best _sector at the frequency point _fl ; eiO _N . _tBest>fl indicates the cell offset of the current non-best sector at the frequency point fl; ^MN ° ^tBest ^ indicates the measurement result of the current non-best sector at the frequency point G; ^^^ indicates the cell offset of the current non-best sector at frequency S; ^MBest > ^fl indicates the measurement result of the current best sector at frequency fl; ^CI ° ^Best > ^fl : indicates that the current best sector is at the frequency The cell offset on fl; ^Μβ ^ ^Ω indicates the measurement result of the current best sector at frequency f2; eiOBest^ indicates the cell offset of the current best _sector at frequency point £2. ^H1 _ld and ^H2 _ld represent the hysteresis parameters of the id event.

The function of ^Hlld is to ensure that the handover does not affect the signal quality of the primary carrier. Because the uplink only uses the primary carrier, it is necessary to ensure that the signal quality of the new cell after handover is not lower than that of the original cell. The role of ^H2ld is to ensure The signal quality of the new cell or sector at least at one downlink frequency is better than the original cell by a threshold, so as to ensure that the handover is beneficial to the downlink service quality of the user. Therefore, ^{H 1} ld is less than or equal to ¹ ^13. In addition, it should be noted that when the measured quantity is RSCP, the unit of ^M > «Be _St , fl, ^M NotBest, f2 ^ ^M _BeSt> fl and ^M _BeSt> £2 is milliwatt mW.

Scenario 2: The current serving cell of the DC-enabled UE is a multi-carrier cell and the UE currently uses the DC technology. The multi-carrier cell and the single-carrier cell exist in the neighboring cell. It is assumed that the frequency used by the UE is fl and f2. The primary carrier is fl, and the frequency points that can be used by the multi-carrier cell in its neighboring area are fl and f2, and the frequency of the single-carrier cell in its neighboring cell can be used as fl or f2.

If the measurement quantity is the path loss, the trigger condition of the single-carrier cell Id event using fl is that the measurement result of the cell at the fl frequency point satisfies the above formula 2 _; the trigger condition of the single-carrier cell Id event using S is the cell The measurement result at the G frequency point satisfies the above formula 3.

If the measured quantity is RSCP or Ec/NO, the trigger condition of the single-carrier cell Id event using fl is that the measurement result of the cell at the fl frequency point satisfies the above formula 2'_{; the condition of} using the single-carrier cell of G to trigger the Id event The measurement result for the cell at the G frequency point satisfies the above formula 3'.

The triggering condition of the multi-carrier cell Id event using the frequency points fl and G is the same as that of the scenario 1, and will not be described here.

Scenario 3: The current serving cell of the DC-enabled UE is a multi-carrier cell and the UE currently uses the DC technology. The multi-carrier cell and the single-carrier cell exist in the neighboring cell. It is assumed that the frequency used by the UE is fl and f2. The primary carrier is fl, and the frequency points that can be used by the multi-carrier cells in its neighboring area are fl and β, or £2 and . If the measured quantity is path loss, the trigger condition of the sector Id event using fl and β is that the measurement result of the cell at the fl frequency point satisfies the above formula 2; the trigger condition of the sector Id event using G and β is that the cell is in the The measurement result at the S frequency point satisfies the above formula 3.

If the measured quantity is RSCP or Ec/NO, the trigger condition of the sector Id event using fl and f2 is that the measurement result of the cell at the fl frequency meets the above formula 2'; the trigger condition of the sector Id event using S and β The measurement result for the cell at the f2 frequency point satisfies the above formula 3'.

Step 1102: Perform measurement on the primary carrier frequency and the secondary carrier frequency corresponding cell according to the measurement control message, and the neighboring cell.

Specifically, the cell corresponding to the primary carrier frequency and the secondary carrier frequency used by the terminal, and the neighboring cell are measured, and the signal quality of the cell is obtained, and the Id event is reported according to the measurement reporting condition of the Id event.

Step 1103: If the trigger condition of the Id event in step 202 is met, the measurement result, the carrier frequency corresponding to the measurement result, and the Id event corresponding to the measurement result are reported to the network side.

It can be seen from the embodiment that the optimized Id event enables the UE to report the measurement report more effectively, and improves the accuracy of the network side to the terminal side mobility decision. One of ordinary skill in the art can understand that all or part of the steps of implementing the above embodiments can be completed by a program to instruct related hardware. The above program can be stored in a computer readable storage medium. The method includes the following steps: receiving a measurement control message, where the measurement control message includes measurement information of a primary carrier frequency and a secondary carrier frequency; and measuring the primary carrier frequency and the secondary carrier frequency according to the measurement control message; reporting the measurement result and the foregoing The carrier frequency corresponding to the measurement result. The above storage medium is, for example, a ROM/RAM, a magnetic disk, an optical disk, or the like.

The above are only the specific embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modifications, equivalents, and substitutions made within the scope of the present invention should be included in the scope of the present invention. .

Claims

Rights request

A multi-carrier based measurement reporting method, comprising:

Receiving a measurement control message, where the measurement control message includes measurement information of a primary carrier frequency and a secondary carrier frequency;

Measuring the primary carrier frequency and the secondary carrier frequency according to the measurement control message;

The measurement result and the carrier frequency corresponding to the measurement result are reported.

The method according to claim 1, wherein the measurement control message further comprises: frequency point information of the primary carrier frequency, intra-frequency measurement information of the primary carrier frequency, and the secondary carrier frequency The intra-frequency measurement cell and the intra-frequency measurement cell of the secondary carrier frequency correspond to frequency-frequency information of the carrier frequency.

The method according to claim 1 or 2, wherein, when the measurement result of the secondary carrier frequency is irrelevant to the mobility decision, the measurement control message indicates that the secondary carrier frequency is not measured.

4. The method of claim 1 wherein:

The measuring the primary carrier frequency according to the measurement control message includes: measuring a signal quality of the primary carrier frequency cell; the reporting the measurement result includes: reporting a signal quality of the primary carrier frequency cell, and according to the primary The signal quality of the carrier frequency cell is reported for the primary carrier frequency active set maintenance, the best cell maintenance, and the event for measuring the unused carrier frequency.

5. The method of claim 1 wherein:

The measuring the secondary carrier frequency according to the measurement control message includes: measuring a signal quality of the secondary carrier frequency cell; the reporting the measurement result includes: reporting a signal quality of the secondary carrier frequency cell, and when the auxiliary When the signal quality of the carrier frequency cell is lower than the threshold value, the 2d event is reported, and when the signal quality of the secondary carrier frequency cell is higher than the threshold value, 2f» is reported.

6. The method of claim 1 wherein:

The measuring the secondary carrier frequency according to the measurement control message includes: measuring a signal quality of the secondary carrier frequency cell; the reporting the measurement result includes: reporting a signal quality of the secondary carrier frequency cell, and according to the auxiliary The signal quality reporting of the carrier frequency cell is used for secondary carrier frequency active set maintenance, best cell maintenance, and events for measuring unused carrier frequencies.

7. The method according to claim 1, further comprising:

Receiving a measurement control message for measuring a non-use carrier frequency;

Measuring the non-use carrier frequency by a transceiver;

The measurement result of the non-use carrier frequency is reported.

8. The method according to claim 7, wherein the measuring the non-use carrier frequency by the transceiver comprises:

Measuring the non-use carrier frequency by an idle transceiver; or

The non-use carrier frequency is measured after the transceiver corresponding to the primary carrier frequency starts the compressed mode; or

And measuring, by the transceiver corresponding to the secondary carrier frequency, the non-use carrier frequency after starting the compression mode; or

The transceiver corresponding to the primary carrier frequency, the transceiver corresponding to the secondary carrier frequency, and the idle transceiver respectively measure different non-use carrier frequencies.

9. The method according to claim 1, wherein the measurement result comprises: a signal quality of all used primary carrier frequency cells and a signal quality of all used secondary carrier frequency cells.

The method according to claim 1, wherein when the measurement result triggers at least two events at the same time, or the measurement result triggers a time difference of at least two events to be less than a threshold, the reporting the measurement result and The carrier frequency corresponding to the measurement result specifically includes:

The measurement result and the carrier frequency corresponding to the measurement result are reported in a measurement report.

The method according to claim 1, wherein the measurement control message further includes a neighboring area measurement information and a trigger condition for changing a best cell event;

The method further includes:

And measuring, according to the neighboring area measurement information, a frequency point of the neighboring area;

If the measurement result satisfies the trigger condition of the change of the best cell event, the change of the best cell event is reported.

The method according to claim 11, wherein the measured quantity of the frequency point of the neighboring area is a path loss.

The method according to claim 12, wherein, if the current cell of the user equipment is a single-carrier cell, and the neighboring cell is a multi-carrier cell, the current cell uses a first frequency point fl, The neighboring area uses the first frequency point fl and the second frequency point, then

The triggering condition of the change of the multi-carrier cell is preferably that the measurement result of the multi-carrier cell on the fi and s is satisfied:

lOLogM _est , _fl + CIO _N < 10LogM _B + CIO _B - Hl _ld /2 and 10LogM _N + CIO _N < 10LogM _B + CIO _B - H2 _ld /2; or satisfy:

lOLogM _{est fl} + CIO ≤ 10LogM _Best>fl + CIO _Best>fl - Hl _ld /2 and 10LogM _N + CIO _N ≤ 10LogM _Bestjfl + CIO - H2 _ld /2 where _N tB _{est> fl} indicates the current non-best multi-carrier The measurement result of the cell _sector on the frequency point fi; ^NotBest > ^fl indicates the cell offset of the current non-best sector at the frequency point fl; ^N ° ^tBest ^ indicates the measurement result of the current non-best sector at the frequency point S; CIO _{NotBest> £ 2} indicates the current point in the frequency offset on the cells 2 is preferably a _{^_non-sector} £; _{Μ Β} <^ _η represents the current measurement result in the best _sector of frequency fi; eJOs ^ fi represents the current best _sector in a frequency The cell offset on point fl; ^Μ indicates the measurement result of the current best _sector at the frequency point; ^α€>Β ^ ^Ω indicates the cell offset of the current best sector at frequency point Q, ^{H 1} id and ^{Η 2} "representation The hysteresis parameter of the Id event.

The method according to claim 13, wherein if the current cell of the user equipment is a multi-carrier cell, the multi-carrier cell uses a primary frequency point fl and a secondary frequency point β, and the neighboring area includes using The multi-carrier cell of fl and S and the single-carrier cell using the fl or β,

The triggering condition of the change of the single-carrier cell using fl is preferably that the single-carrier cell is measured on the fl The quantity result is satisfied:

10LogM _N + CIO _N < 10LogM _B + CIO _B - H2 _ld /2; The trigger condition for the single-cell cell to change the best cell event using S is that the measurement result of the single-carrier cell on the G satisfies:

10LogM _N + CIO _N < 10LogM _{Best fl} + CIO _B - H2 _ld /2; The trigger condition for the multi-carrier cell to change the best cell event is: the measurement result of the multi-carrier cell on the fl and G ί foot:

lOLogM _est , _fl + CIO ≤ 10LogM _B + CIO _B - Hl _ld /2 and 10LogM _N + CIO _NotB < 10LogM _B + CIO _B - H2 _ld /2; or satisfy:

lOLogM _est , _fl + CIO ≤ 10LogM _B + CIO _B - Hl _ld /2 and

10LogM _N + CIO _N ≤ 10LogM _{Best fl} + CIO _B - H2 _ld /2.

The method according to claim 13, wherein if the current cell of the user equipment is a multi-carrier cell, the multi-carrier cell uses a primary frequency point fl and a secondary frequency point β, and the neighboring area includes using a first multi-carrier cell of the fl and the third frequency point G, or a second multi-carrier cell using the G and the β,

The trigger condition of the change of the first multi-carrier cell is that the measurement result on the fl satisfies: lOLogM _est , _fl + CIO ≤ 10LogM _B + CIO _B - H2 _ld /2 the second multi-carrier The trigger condition for the cell change best cell event is that the measurement result on the S satisfies: 10LogM _N + CIO _N ≤ 10LogM _{Best fl} + CIO _Best , _fl - H2 _ld /2.

The method according to claim 11, wherein the measured quantity of the frequency point of the neighboring area is a received signal code power RSCP or a signal to interference ratio Ec/NO.

The method according to claim 16, wherein, if the current cell of the user equipment is a single-carrier cell, and the neighboring cell is a multi-carrier cell, the current cell uses a first frequency point fl, The neighboring area uses the first frequency point fl and the second frequency point f2, then

The triggering condition of the change of the multi-carrier cell is preferably that the measurement result of the multi-carrier cell on the fl and S satisfies:

lOLogM _est , _fl + CIO 10LogM _B + CIO _B + Hl _ld /2 and lOLogM + CIO _{N fl} > 10LogM _{Best fl} + CIO _{Best fl} + H2 _ld /2 _; or satisfy:

lOLogM _est , _fl + CIO 10LogM _Bes ^ + CIO _B + Hl _ld /2 _3⁄4π lOLogM _est>f2 + CIO 10LogM _Best>fl + CIO _{Best fl} + H2 _ld /2.

The method according to claim 16, wherein if the current cell of the user equipment is a multi-carrier cell, the multi-carrier cell uses a primary frequency point fl and a secondary frequency point β, and the neighboring area includes using The multi-carrier cell of fl and S and the single-carrier cell using the fl or β,

The triggering condition of the change of the single-carrier cell using fl is preferably that the measurement result of the single-carrier cell on the fl satisfies:

lOLogM + CIO 10LogM _{Best fl} + CIO _{Best fl} + H2 _ld /2 The trigger condition of the single-cell cell change best cell event using S is that the measurement result of the single-carrier cell on the G satisfies:

10LogM _NotBest>f2 + CIO _NotBest>s ≥ 10LogM _Bestjfl + CIO _{Best fl} + H2 _ld /2; The trigger condition of the multi-carrier cell changing best cell event is: the multi-carrier cell is on the fl and G Measurement results ί two feet:

10LogM _NotBestjfl + CIO _NotBestjfl ≥ 10LogM _Best>fl + CIO _Best>fl + Hl _ld /2 and

10LogM _NotBestjfl + CIO _{NotBest> fl} ≥ 10LogM _{Best fl} + CIO _Best>fl + H2 _ld /2; or meet:

lOLogM _{est fl} + CIO ≥ 10LogM _Best>fl + CIO _Best>fl + Hl _ld /2 and lOLogM _est>f2 + CIO 10LogM _Best>fl + CIO _{Best fl} + H2 _ld /2.

The method according to claim 16, wherein if the current cell of the user equipment is a multi-carrier cell, the multi-carrier cell uses a primary frequency point fl and a secondary frequency point β, and the neighboring area includes The first multi-carrier cell of the fl and the third frequency point G, or the second multi-carrier cell using the G and the β,

The trigger condition of the change of the first multi-carrier cell is that the measurement result is satisfied on the fl: lOLogM + CIO 10LogM _Best ^ _fl + CIO _{Best fl} + H2 _ld /2 the second multi-carrier cell The trigger condition for changing the best cell event is that the measurement result on the G satisfies: lOLogM _{est s} + CIO _NotBest>s > 10LogM _{Best fl} + CIO _{Best> fl} + H2 _ld /2.

20. A multi-carrier based measurement reporting system, comprising: a network device and a terminal,

The network device is configured to send a measurement control message to the terminal when the terminal accesses the network, where the measurement control message includes measurement information of a primary carrier frequency and a secondary carrier frequency;

The terminal is configured to measure the primary carrier frequency and the secondary carrier frequency according to the measurement control message, and report the measurement result and a carrier frequency corresponding to the measurement result to the network device.

21. A network device, comprising:

a determining unit, configured to determine whether the terminal accesses the network; and And a sending unit, configured to send a measurement control message to the terminal when the terminal accesses the network, where the measurement control message includes measurement information of a primary carrier frequency and a secondary carrier frequency.

The network device according to claim 21, further comprising:

a receiving unit, configured to receive a measurement result reported by the terminal and a carrier frequency corresponding to the measurement result;

The sending unit is further configured to: when the signal quality of the primary carrier frequency or the secondary carrier frequency in the measurement result is lower than a threshold, send a measurement control message for measuring the non-use carrier frequency to the terminal.

23. A terminal, comprising:

a receiving unit, configured to receive a measurement control message, where the measurement control message includes measurement information of a primary carrier frequency and a secondary carrier frequency, and a measurement unit, configured to perform, according to the measurement control message, the primary carrier frequency and the secondary carrier frequency Measurement; and

The reporting unit is configured to report the measurement result and a carrier frequency corresponding to the measurement result.

24. The terminal of claim 23, wherein:

The measuring unit further includes:

a primary carrier frequency measuring unit for measuring signal quality of a primary carrier frequency cell; and

a secondary carrier frequency measuring unit, configured to measure signal quality of the secondary carrier frequency cell;

The reporting unit further includes:

a main carrier frequency reporting unit, configured to report a signal quality of the primary carrier frequency cell, and report, according to the signal quality of the primary carrier frequency cell, a primary carrier frequency activation set maintenance, a best cell maintenance, and an unused carrier frequency The event of the measurement; and

a first secondary carrier frequency reporting unit, configured to report a signal quality of the secondary carrier frequency cell, and report a 2d event when the signal quality of the secondary carrier frequency cell is lower than a threshold, when the secondary carrier frequency cell When the signal quality is higher than the threshold, the report is reported; or the second secondary carrier reporting unit is configured to report the signal quality of the secondary carrier frequency cell, and report the signal quality according to the secondary carrier frequency cell. The secondary carrier frequency activation set maintenance, best cell maintenance, and events for measuring unused carrier frequencies.

25. The terminal of claim 23, wherein:

The receiving unit is further configured to receive a measurement control message for measuring a non-used carrier frequency;

The receiving unit further includes:

a starting unit, configured to start a transceiver to measure the non-use carrier frequency;

The reporting unit is further configured to report the measurement result of the non-use carrier frequency.

The terminal according to claim 23, wherein the receiving unit is further configured to receive a measurement control message that includes neighboring area measurement information and a trigger condition for changing a best cell event;

The measuring unit is further configured to: perform measurement on a frequency point of the neighboring cell according to the measurement information of the neighboring cell; and the reporting unit is further configured to: if the measurement result satisfies a trigger condition of the best cell event of the change, Report the change to the best cell event.