CN104683080B - Carrier wave polymerize implementation method, carrier availability detection method and device - Google Patents

Abstract

The invention discloses a kind of carrier waves to polymerize implementation method, carrier availability detection method and device, comprising: network side receives the ability information whether the expression terminal that terminal reports supports authorized spectrum band to polymerize with unlicensed band carrier wave；And when the ability information indicates that the terminal supports authorized spectrum band to polymerize with unlicensed band carrier wave, available carrier wave that is determining the unlicensed band that the terminal is supported and being currently at available mode；And it is directed to the terminal, configuring the carrier wave in authorized spectrum band is main carrier, and configuring the available carrier wave is secondary carrier；And carrier wave polymerization is carried out using the main carrier and the secondary carrier, it is communicated with the terminal.The adverse effect of performance to other network systems is avoided when carrying out carrier wave polymerization using unlicensed band using scheme provided in an embodiment of the present invention, and improves the performance that present networks carry out carrier wave aggregation communication using unlicensed band.

Description

Carrier aggregation implementation method, carrier availability detection method and device

technical field

The present invention relates to the technical field of wireless communication, and in particular, to a method for implementing carrier aggregation, a method and device for detecting carrier availability.

Background technique

The existing Long Term Evolution (LTE, Long Term Evolution) system can only work in the authorized frequency band allocated to the cellular mobile communication system as defined by the 3GPP (3rd Generation Partnership Project) standardization organization. With the rapid development of Internet services, the business volume is increasing, and the existing licensed frequency bands are gradually unable to meet the frequency requirements of the LTE system.

The existing LTE system can only work in the licensed frequency band (licensed, frequency is allocated to fixed users, exclusive nature) allocated to the cellular mobile communication system. With the shortage of frequency resources, the licensed frequency band will not be able to meet future business frequency requirements . my country has allocated 2400-2483.5MHz, 5150-5250MHz, 5250-5350MHz and 5725-5850MHz for wireless local area networks (WLAN, Wireless Local Area Networks). It can be used if the technical requirements of the frequency band are met, and there is no need to report to the regulatory agency), and a new unlicensed frequency band of 5475-5725MHz may be opened in the future. Unlicensed frequency bands are expected to become an important supplement to licensed frequency bands, but existing LTE systems cannot be used in unlicensed frequency bands.

At present, a hypothetical solution for realizing the use of unlicensed frequency bands in an LTE system is a solution of performing carrier aggregation by using carriers in the licensed frequency bands and carriers in the unlicensed frequency bands.

In my country, the United States, South Korea, Japan, Europe and other countries, some unlicensed frequency bands have special requirements to protect the coexistence of other services. For example, in my country's 5250-5350MHz and 5475-5725MHz unlicensed frequency bands, terminals need to have dynamic frequencies Select (DFS, Dynamic frequency selection) function to detect interference from radar systems and avoid working on the same carrier as these radar systems, so as to ensure the performance requirements of the radar system. If the above-mentioned unlicensed frequency band is used for communication in the LTE system, it is also necessary to meet the requirements of the relevant protection radar system.

On the other hand, when using the unlicensed frequency band for communication in the LTE system, if other network systems (such as radar systems, or network systems provided by other network operators) are also using the same unlicensed frequency band, the LTE system will also be used for communication. The system uses this unlicensed frequency band for communication, causing serious interference and reducing system performance.

To sum up, there are problems in the prior art that the performance of other network systems using the same unlicensed frequency band cannot be effectively guaranteed when carrier aggregation is performed using the unlicensed frequency band, and the problem of its own communication performance is low.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a method and device for implementing carrier aggregation using an unlicensed frequency band, so as to solve the problem in the prior art that when using an unlicensed frequency band for carrier aggregation, the performance of other network systems using the same unlicensed frequency band cannot be affected. The problem of effective guarantee and the problem of low communication performance of this network.

An embodiment of the present invention provides a method for implementing carrier aggregation using an unlicensed frequency band, including:

The network side receives the capability information reported by the terminal indicating whether the terminal supports carrier aggregation of licensed frequency bands and unlicensed frequency bands;

When the capability information indicates that the terminal supports carrier aggregation of licensed frequency bands and unlicensed frequency bands, determine the available carriers in the unlicensed frequency bands supported by the terminal that are currently in an available state, wherein the available carriers are not used by other networks carrier used;

For the terminal, configure the carrier in the licensed frequency band as the primary carrier, and configure the available carrier as the secondary carrier;

Perform carrier aggregation using the primary carrier and the secondary carrier to communicate with the terminal.

The embodiment of the present invention also provides a method for reporting capability information, including:

The terminal reports capability information of whether the terminal supports carrier aggregation of licensed frequency bands and unlicensed frequency bands to the network side.

The embodiment of the present invention also provides a carrier aggregation implementation device using an unlicensed frequency band, including:

a receiving unit, configured to receive capability information reported by the terminal indicating whether the terminal supports carrier aggregation of licensed frequency bands and unlicensed frequency bands;

an available carrier determination unit, configured to determine an available carrier in a licensed unlicensed band supported by the terminal and currently in an available state when the capability information indicates that the terminal supports carrier aggregation of a licensed frequency band and an unlicensed frequency band;

a configuration unit, configured to configure, for the terminal, a carrier in the licensed frequency band as a primary carrier, and configure the available carrier as a secondary carrier;

A communication unit, configured to perform carrier aggregation by using the primary carrier and the secondary carrier to communicate with the terminal.

The embodiment of the present invention also provides a capability information reporting device, applied to a terminal, including:

A reporting unit, configured to report capability information of whether the terminal supports carrier aggregation of licensed frequency bands and unlicensed frequency bands to the network side.

The beneficial effects of the present invention include:

In the solution provided by the embodiment of the present invention, when the license-free frequency band is used for carrier aggregation, the terminal reports capability information indicating whether the terminal supports the licensed frequency band and the license-free frequency band carrier aggregation to the network side. When the frequency band and the unlicensed frequency band are aggregated, determine the available carrier in the unlicensed frequency band supported by the terminal that is currently available. The available carrier is a carrier that is not used by other networks. For the terminal, configure the carrier in the licensed frequency band as the main carrier. carrier, and configure the available carrier as a secondary carrier, and perform carrier aggregation using the primary carrier and the secondary carrier to communicate with the terminal. Since the carrier in the unlicensed frequency band used as the secondary carrier is an available carrier during carrier aggregation, using the available carrier for carrier aggregation avoids adverse effects on the performance of other network systems, and also prevents other network systems from using this carrier. The interference caused by the available carriers to the communication of the network, thereby improving the performance of the network to use the unlicensed frequency band for carrier aggregation communication.

Embodiments of the present invention further provide a method and device for detecting the availability of a carrier in an unlicensed frequency band, which are used to detect the availability of a carrier in an unlicensed frequency band.

An embodiment of the present invention provides a method for detecting the availability of an unlicensed frequency band carrier, including:

The network side detects the signal power of other network signals carried by the target carrier in the unlicensed frequency band;

When the signal power is greater than a first power threshold, determining that the target carrier is an unavailable carrier;

When the signal power is not greater than the first power threshold, it is determined that the target carrier is an available carrier.

An embodiment of the present invention also provides a device for detecting the availability of an unlicensed frequency band carrier, including:

a detection unit, configured to detect the signal power of other network signals carried by the target carrier in the unlicensed frequency band;

an availability determination unit, configured to determine that the target carrier is an unavailable carrier when the signal power is greater than a first power threshold; and determine that the target carrier is available when the signal power is not greater than the first power threshold carrier.

The beneficial effects of the present invention include:

In the solution provided by the embodiment of the present invention, the availability detection of the unlicensed frequency band carrier is realized, so that the reference basis of the available carrier can be provided for the carrier aggregation using the unlicensed frequency band, thereby ensuring that the licensed frequency band and the unlicensed frequency band are used for carrier aggregation. Various requirements at the time, including the guarantee requirements for the performance of other networks using unlicensed frequency bands, and the traffic performance requirements of this network.

Embodiments of the present invention further provide a method and device for detecting the availability of a carrier in an unlicensed frequency band, which are used to detect the availability of a carrier in an unlicensed frequency band.

An embodiment of the present invention provides a method for detecting the availability of an unlicensed frequency band carrier, including:

The network side sends the detection configuration information for the availability detection of the target carrier in the unlicensed frequency band to the terminal;

A detection result of the availability detection of the target carrier based on the detection configuration information sent by the terminal is received.

The embodiment of the present invention also provides a method for detecting the availability of an unlicensed frequency band carrier, including:

The terminal receives the detection configuration information sent by the network side to perform availability detection on the target carrier of the unlicensed frequency band;

performing availability detection on the target carrier based on the detection configuration information;

Send the detection result to the network side.

An embodiment of the present invention also provides a device for detecting the availability of an unlicensed frequency band carrier, including:

a sending unit, configured to send detection configuration information for performing availability detection on the target carrier of the unlicensed frequency band to the terminal;

A receiving unit, configured to receive a detection result of the availability detection of the target carrier based on the detection configuration information sent by the terminal.

An embodiment of the present invention also provides a device for detecting the availability of an unlicensed frequency band carrier, including:

a receiving unit, configured to receive the detection configuration information sent by the network side to perform availability detection on the target carrier of the unlicensed frequency band;

a detection unit, configured to perform availability detection on the target carrier based on the detection configuration information;

The sending unit is used for sending the detection result to the network side.

The beneficial effects of the present invention include:

In the solution provided by the embodiment of the present invention, the availability detection of the unlicensed frequency band carrier is realized, so that the reference basis of the available carrier can be provided for the carrier aggregation using the unlicensed frequency band, thereby ensuring that the licensed frequency band and the unlicensed frequency band are used for carrier aggregation. Various requirements at the time, including the guarantee requirements for the performance of other networks using unlicensed frequency bands, and the traffic performance requirements of this network.

Other features and advantages of the present application will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the present application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description, claims, and drawings.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention. In the attached image:

FIG. 1 is a flowchart of a method for implementing carrier aggregation using an unlicensed frequency band applied to a network side according to Embodiment 1 of the present invention;

2 is a flowchart of a method for reporting capability information applied to a terminal side provided by Embodiment 1 of the present invention;

3 is a flowchart of a method for implementing carrier aggregation using an unlicensed frequency band according to Embodiment 1 of the present invention;

4 is a schematic structural diagram of an apparatus for implementing carrier aggregation using an unlicensed frequency band according to Embodiment 2 of the present invention;

5 is a schematic structural diagram of an apparatus for reporting capability information provided by Embodiment 3 of the present invention;

6 is a flowchart of a method for detecting the availability of an unlicensed frequency band provided in Embodiment 4 of the present invention;

7 is a schematic structural diagram of an apparatus for detecting the availability of a license-free frequency band provided in Embodiment 5 of the present invention;

8 is a flowchart of a method for detecting the availability of an unlicensed frequency band applied to a network side according to Embodiment 6 of the present invention;

9 is a flowchart of a method for detecting the availability of a license-free frequency band applied to a terminal side provided by Embodiment 6 of the present invention;

10 is a flowchart of a method for detecting the availability of an unlicensed frequency band according to Embodiment 6 of the present invention;

11 is a schematic structural diagram of an apparatus for detecting the availability of a license-free frequency band according to Embodiment 7 of the present invention;

FIG. 12 is a schematic structural diagram of an apparatus for detecting the availability of an unlicensed frequency band according to Embodiment 8 of the present invention.

Detailed ways

In order to provide an implementation scheme for avoiding adverse effects on the performance of other network systems when using the unlicensed frequency band for carrier aggregation, and for improving the performance of the network using the unlicensed frequency band for carrier aggregation communication, the embodiments of the present invention provide a method using the unlicensed frequency band for carrier aggregation. A method and device for implementing carrier aggregation in unlicensed frequency bands. In order to provide an implementation scheme for detecting the availability of unlicensed frequency bands, the embodiments of the present invention also provide a method and device for detecting the availability of unlicensed frequency bands. The preferred embodiments of the present invention are described, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and not to limit the present invention. And the embodiments in this application and the features in the embodiments may be combined with each other without conflict.

Example 1:

Embodiment 1 of the present invention provides a method for implementing carrier aggregation using an unlicensed frequency band, which is applied to the network side, as shown in FIG. 1 , including:

Step 101: The network side receives capability information reported by the terminal indicating whether the terminal supports carrier aggregation of licensed frequency bands and unlicensed frequency bands.

Step 102: When the capability information indicates that the terminal supports carrier aggregation of the licensed frequency band and the unlicensed frequency band, determine the available carriers of the unlicensed frequency band supported by the terminal and currently in an available state.

The available carriers may be carriers not used by other networks.

Step 103: For the terminal, configure the carrier in the licensed frequency band as the primary carrier, and configure the available carrier as the secondary carrier.

Step 104: Use the primary carrier and the secondary carrier to perform carrier aggregation to communicate with the terminal.

Correspondingly, Embodiment 1 of the present invention also provides a method for reporting capability information, which is applied to the terminal side, as shown in FIG. 2 , including:

Step 201 , the terminal reports capability information of whether the terminal supports carrier aggregation of licensed frequency bands and unlicensed frequency bands to the network side.

Wherein, the capability information can be used by the network side to perform carrier aggregation configuration for the available carriers in the unlicensed frequency band supported by the terminal that are currently in an available state according to the capability information, wherein the available carriers are not used by other networks carrier.

Further, it can also include:

Step 202: After performing carrier aggregation configuration on the network side, perform carrier aggregation using the primary carrier and the secondary carrier to communicate with the network side, where the primary carrier is a carrier in the licensed frequency band, and the secondary carrier is the available carrier.

In the method for implementing carrier aggregation using unlicensed frequency bands shown in the above-mentioned FIG. 1 to FIG. 2 of the present invention, further, the terminal may also report the number of the unlicensed frequency band supported by the terminal to the network side, and the terminal supports aggregation in the unlicensed frequency band. The number of carriers, the maximum aggregated bandwidth supported by the terminal in the unlicensed frequency band, and one or any combination of information on the usage mode information of the terminal using the unlicensed frequency band for carrier aggregation, and the corresponding information on the network side is based on the received information. information for carrier aggregation configuration.

The method provided by the present invention will be described in detail below with specific embodiments in conjunction with the accompanying drawings.

3 is a flowchart of a method for implementing carrier aggregation using an unlicensed frequency band provided in Embodiment 1 of the present invention, which specifically includes the following processing steps:

Step 301 , the terminal reports to the network side the capability information of whether the terminal supports carrier aggregation of licensed frequency bands and unlicensed frequency bands.

The capability information may be pre-configured on the terminal when the terminal leaves the factory, and the terminal may directly acquire and report it.

Step 302: When the terminal supports carrier aggregation of licensed frequency bands and unlicensed frequency bands, it can further report one or any combination of the following information to the network side:

The number of the unlicensed frequency band supported by the terminal;

The number of carriers that the terminal supports aggregation in the unlicensed frequency band, specifically, the number of carriers may include the number of uplink carriers and/or the number of downlink carriers;

The maximum aggregate bandwidth supported by the terminal in the unlicensed frequency band;

Information on how the terminal uses the unlicensed frequency band for carrier aggregation.

Among them, the use modes of the terminal using the unlicensed frequency band for carrier aggregation can include the following four:

The first is to use the secondary carrier in the unlicensed frequency band as a frequency division duplexing (FDD, Frequency Division Duplexing) method.

The second type: Use the secondary carrier in the unlicensed frequency band as Time Division Duplexing (TDD, Time Division Duplexing).

The third type: use the secondary carrier in the unlicensed frequency band as a pure downlink mode of frequency division duplex.

The fourth: use the secondary carrier in the unlicensed frequency band as a pure downlink mode of time division duplex.

The various information in this step may be carried and reported in one message, or may be carried and reported in different messages respectively.

Step 303: After receiving the capability information reported by the terminal, when the capability information indicates that the terminal supports carrier aggregation of the licensed frequency band and the unlicensed frequency band, the network side determines the currently available available carriers of the unlicensed frequency band, wherein the available carriers are those that are not available in the unlicensed frequency band. Carriers used by other networks.

The currently available available carrier may be the available carrier of the license-free frequency band in the current scheduling period.

In the embodiment of the present invention, whether each carrier of each unlicensed frequency band is available can be determined according to which carriers of those unlicensed frequency bands are available in each scheduling period. Flexible configuration for usage.

Whether each carrier in each unlicensed frequency band is available can also be determined by periodically dynamically monitoring the strength of the signal power of other network signals carried by the carrier in the unlicensed frequency band. The strength is high, for example, greater than a first preset power threshold. When , it indicates that the carrier is being used by other networks and is currently unavailable; otherwise, it indicates that the carrier is not used by other networks and is currently available.

Further, when it is determined that the carrier is available, the signal power of the local network signal carried by the carrier may be further compared with the second preset power threshold, and when the value is greater than that, it is determined that the carrier is a restricted available carrier. , it is determined that the carrier is a fully available carrier, so that the fully available carrier can be preferentially selected for carrier aggregation in this network subsequently.

Step 304: The network side determines the available carriers in the unlicensed frequency band supported by the terminal and currently in an available state.

The unlicensed frequency band supported by the terminal may be a pre-configured default unlicensed frequency band supported by the terminal, or when the terminal reports the number of the unlicensed frequency band supported by the terminal, the unlicensed frequency band indicated by the number may be determined as the terminal supported by the terminal. unlicensed frequency bands.

Step 305, the network side performs carrier aggregation configuration for the terminal to use the licensed frequency band and the unlicensed frequency band, including: configuring the carrier in the licensed frequency band as the primary carrier, and configuring the unlicensed frequency band supported by the terminal determined in the above step 304 and currently in the The available carrier in the available state is the secondary carrier.

When the available carriers are divided into restricted available carriers and fully available carriers, it is preferable to choose to use fully available carriers for carrier aggregation in order to obtain better communication performance.

In this embodiment of the present invention, there may be multiple available carriers in an unlicensed frequency band supported by the terminal that are currently in an available state. Therefore, multiple available carriers may be configured as secondary carriers.

Further, when receiving the number of carriers reported by the terminal that the terminal supports aggregation in the unlicensed frequency band, an available carrier that does not exceed the number of carriers may be configured as secondary carriers.

Further, when it is received that the number of the carriers reported by the terminal is the number of uplink carriers, and/or the number of downlink carriers, correspondingly, the available carriers that are configured not to exceed the number of uplink carriers are uplink secondary carriers, and the configuration does not exceed the number of uplink carriers. The available carriers of the number of downlink carriers are downlink secondary carriers.

In this step, when the maximum aggregated bandwidth supported by the terminal in the unlicensed frequency band reported by the terminal is also received, when performing carrier aggregation configuration, it is also necessary to refer to the maximum aggregated bandwidth, that is, the carrier in the licensed frequency band is configured as the primary carrier, And after configuring an available carrier as a secondary carrier, it needs to satisfy that the carrier aggregation bandwidth does not exceed the maximum aggregation bandwidth.

Step 306: After the network side completes the carrier aggregation configuration, the network side and the terminal use the carrier aggregation of the primary carrier and the secondary carrier for communication.

The specific communication process can be performed in the same manner as the carrier aggregation communication in the prior art, which will not be described in detail here.

Further, when receiving the use mode information reported by the terminal that the terminal uses the unlicensed frequency band to perform carrier aggregation, correspondingly, the network side and the terminal use the carrier of the primary carrier and the secondary carrier according to the use mode indicated by the use mode information. Aggregate to communicate.

In this embodiment of the present invention, at least one of the following specific communication processes may also be adopted:

The network side can use the primary carrier to send downlink control information to the terminal;

The network side can use the primary carrier to send the scheduling information for the unlicensed frequency band to the terminal;

The terminal uses the primary carrier to report the channel quality feedback information to the network side;

The terminal uses the primary carrier to report acknowledgement/negative acknowledgement (ACK/NACK, Acknowledgement/Negative Acknowledgement) information to the network side.

With the above method provided in Embodiment 1 of the present invention, since the carrier in the unlicensed frequency band used as the secondary carrier is an available carrier during carrier aggregation, the available carrier is used for carrier aggregation, which avoids poor performance of other network systems. In addition, it also avoids the interference caused by other network systems using the available carrier to the network communication, thereby improving the performance of the network using the unlicensed frequency band for carrier aggregation communication.

Example 2:

Based on the same inventive concept, according to the method for implementing carrier aggregation using unlicensed frequency bands provided by the above embodiments of the present invention, correspondingly, Embodiment 2 of the present invention also provides a device for implementing carrier aggregation using unlicensed frequency bands, which is applied to the network side , the schematic diagram of its structure is shown in Figure 4, which specifically includes:

A receiving unit 401, configured to receive capability information reported by a terminal indicating whether the terminal supports carrier aggregation of licensed frequency bands and unlicensed frequency bands;

An available carrier determination unit 402, configured to determine, when the capability information indicates that the terminal supports carrier aggregation of a licensed frequency band and an unlicensed frequency band, to determine an available carrier of the unlicensed frequency band supported by the terminal and currently in an available state;

A configuration unit 403, configured to configure, for the terminal, a carrier in the licensed frequency band as a primary carrier, and configure the available carrier as a secondary carrier;

A communication unit 404, configured to perform carrier aggregation by using the primary carrier and the secondary carrier to communicate with the terminal.

Further, the receiving unit 401 is further configured to receive the number of the unlicensed frequency band supported by the terminal reported by the terminal;

The available carrier determination unit 402 is specifically configured to determine the available carriers in the unlicensed frequency band indicated by the number supported by the terminal and currently in an available state.

Further, the receiving unit 401 is further configured to receive the number of carriers reported by the terminal that the terminal supports aggregation in the unlicensed frequency band;

The configuration unit 403 is specifically configured to configure the available carriers that do not exceed the number of carriers as secondary carriers.

Further, the number of carriers includes:

the number of uplink carriers that the terminal supports aggregated in the unlicensed frequency band; and/or

the number of downlink carriers that the terminal supports aggregated in the unlicensed frequency band;

The configuring unit 403 is specifically configured to configure the available carriers that do not exceed the number of uplink carriers as uplink secondary carriers; and/or configure the available carriers that do not exceed the number of downlink carriers to be downlink secondary carriers.

Further, the receiving unit 401 is further configured to receive the maximum aggregated bandwidth supported by the terminal in the unlicensed frequency band reported by the terminal;

The configuration unit 403 is configured to make the carrier aggregation bandwidth not exceed the maximum aggregation bandwidth after configuring the carrier in the licensed frequency band as the primary carrier and configuring the available carrier as the secondary carrier.

Further, the receiving unit 401 is further configured to receive the usage mode information of the terminal using the license-free frequency band to perform carrier aggregation reported by the terminal;

The communication unit 404 is further configured to perform carrier aggregation by using the primary carrier and the secondary carrier according to the usage mode indicated by the usage mode information, and communicate with the terminal.

Further, the communication unit 404 is specifically configured to use the primary carrier to send downlink control information to the terminal; or

using the primary carrier to send scheduling information for the unlicensed frequency band to the terminal; or

receiving channel quality feedback information reported by the terminal using the primary carrier; or

Receive the acknowledgement/negative acknowledgement character ACK/NACK information reported by the terminal using the primary carrier.

The functions of the units in the above FIG. 4 may correspond to the corresponding processing steps in the flowcharts shown in FIG. 1 to FIG. 3 , which will not be repeated here.

Example 3:

Based on the same inventive concept, according to the method for reporting capability information provided by the foregoing embodiments of the present invention, correspondingly, Embodiment 3 of the present invention also provides a device for reporting capability information, which is applied to a terminal. include:

The reporting unit 501 is configured to report capability information of whether the terminal supports carrier aggregation of licensed frequency bands and unlicensed frequency bands to the network side.

Wherein, the capability information can be used by the network side to perform carrier aggregation configuration for the available carriers in the unlicensed frequency band supported by the terminal that are currently in an available state according to the capability information, where the available carriers are: Carriers not used by other networks;

Further, it can also include:

The communication unit 502 is configured to perform carrier aggregation by using a primary carrier and a secondary carrier to communicate with the network side after performing carrier aggregation configuration on the network side, where the primary carrier is a carrier in a licensed frequency band, and the secondary carrier is the available carrier .

Further, the reporting unit 501 is further configured to report the number of the license-free frequency band supported by the terminal to the network side, so that the network side determines that the license-free frequency band represented by the number supported by the terminal is used and is currently available. carrier aggregation configuration for available carriers.

Further, the reporting unit 501 is further configured to report to the network side the number of carriers that the terminal supports aggregation in the unlicensed frequency band, so that the network side configures the available carriers that do not exceed the number of carriers as secondary carriers.

Further, the number of carriers includes:

The terminal supports the aggregated number of uplink carriers in the unlicensed frequency band, for the network side to configure the available carriers that do not exceed the number of uplink carriers as uplink secondary carriers; and/or

The terminal supports the aggregated number of downlink carriers in the unlicensed frequency band, and is used to configure the available carriers that do not exceed the number of downlink carriers as downlink secondary carriers.

Further, the reporting unit 501 is further configured to report the maximum aggregated bandwidth supported by the terminal in the unlicensed frequency band to the network side, so that the carrier aggregation bandwidth does not exceed the maximum aggregated bandwidth after the network side completes the carrier aggregation configuration.

Further, the reporting unit 501 is further configured to report the usage mode information of the terminal using the unlicensed frequency band for carrier aggregation to the network side, for the network side to use the usage mode indicated by the usage mode information after the carrier aggregation configuration is performed. communicate with the terminal.

Further, the communication unit 502 is specifically configured to receive downlink control information sent by the network side using a primary carrier, where the primary carrier is a carrier in a licensed frequency band; or

receiving the scheduling information for the unlicensed frequency band sent by the network side using the primary carrier; or

reporting channel quality feedback information to the network side using the primary carrier; or

Use the primary carrier to report the ACK/NACK information of the acknowledgment character/negative acknowledgment character to the network side.

The functions of the above-mentioned units in FIG. 5 may correspond to the corresponding processing steps in the flowcharts shown in FIG. 1 to FIG. 3 , which will not be repeated here.

To sum up, the solution provided by the embodiment of the present invention includes: the network side receives capability information reported by the terminal indicating whether the terminal supports carrier aggregation in licensed frequency bands and unlicensed frequency bands; and when the capability information indicates that the terminal supports licensed frequency bands and During carrier aggregation of the unlicensed frequency band, determine the available carrier in the unlicensed frequency band supported by the terminal and which is currently available; and for the terminal, configure the carrier in the licensed frequency band as the primary carrier, and configure the available carrier as the secondary carrier; and Perform carrier aggregation using the primary carrier and the secondary carrier to communicate with the terminal. The solution provided by the embodiments of the present invention avoids adverse effects on the performance of other network systems when using the unlicensed frequency band for carrier aggregation, and improves the performance of the network using the unlicensed frequency band for carrier aggregation communication.

The apparatus for implementing carrier aggregation using an unlicensed frequency band provided by the embodiments of the present application may be implemented by a computer program. Those skilled in the art should be able to understand that the above-mentioned module division method is only one of many module division methods. If it is divided into other modules or not divided into modules, as long as the carrier aggregation implementation device using the unlicensed frequency band has the above functions, it should be within the scope of protection of this application.

In order to provide an implementation scheme for detecting the availability of carriers in an unlicensed frequency band, the embodiments of the present invention provide a method and device for detecting the availability of an unlicensed frequency band. The preferred embodiments described herein are only used to illustrate and explain the present invention, and are not intended to limit the present invention. And the embodiments in this application and the features in the embodiments may be combined with each other without conflict.

Example 4:

Embodiment 4 of the present invention provides a method for detecting the availability of an unlicensed frequency band, which is applied to the network side, as shown in FIG. 6 , including:

Step 601: The network side detects the signal power of other network signals carried by the target carrier in the unlicensed frequency band.

Step 602: When the signal power is greater than the first power threshold, determine that the target carrier is an unavailable carrier; when the signal power is not greater than the first power threshold, determine that the target carrier is an available carrier.

Further, when the signal power is not greater than the first power threshold, the relationship between the signal power of the network signal carried by the target carrier and the second power threshold can also be compared, and the signal of the network signal carried by the target carrier can be compared. When the power is greater than the second power threshold, the target carrier is determined to be a restricted available carrier; when the signal power of the local network signal carried by the target carrier is not greater than the second power threshold, the target carrier is determined to be a fully available carrier. Compared to restricted available carriers, fully available carriers are more conducive to carrier aggregation with carriers in licensed frequency bands.

The first power threshold and the second power threshold may be flexibly determined according to the actual situation of the target carrier, for example, the first power threshold is -72dBm/MHz, and the second power threshold is -55dBm/MHz.

Further, in Embodiment 4 of the present invention, the availability detection of the unlicensed frequency band carrier may be periodically triggered, for example, the detection period is monitored, and when the detection period arrives, the detection of other network signals carried by the target carrier of the unlicensed frequency band is triggered. signal power.

Periodic detection is adopted, and the current detection result is valid in this period, that is, before the arrival of the next detection period, the carrier availability result detected in this period remains unchanged.

The availability detection of the unlicensed frequency band carrier can also be triggered by an event. For example, when it is determined that the signal quality of the local network signal carried by the target carrier in the unlicensed frequency band does not meet the preset signal quality conditions, the detection of other networks carried by the target carrier is triggered. The signal power of the signal.

Wherein, it is determined that the signal quality of the local network signal carried by the target carrier does not meet the preset signal quality condition, which may specifically include:

Determine that the channel quality feedback information CQI of the target carrier in this network is less than the preset CQI threshold; or

Determine that the block error rate BLER of the local network signal carried by the target carrier is greater than the preset BLER threshold; or

It is determined that the number of NACK feedbacks of the target carrier in the network within the preset time period is greater than the preset NACK threshold value.

A combination of periodic triggering and event triggering can also be used.

In Embodiment 4 of the present invention, when detecting the availability of the unlicensed frequency band carrier, a detection time period may also be set, and in the above step 601, the network side may specifically detect the target carrier of the unlicensed frequency band within the detection time period. Signal power of other network signals.

The detection time period can be represented by the detection time length and the detection start position, and the detection time period can be one or more subframes, or one or more Orthogonal Frequency Division Multiplexing (OFDM, Orthogonal Frequency Division Multiplexing) symbol.

Further, the detection time period may be a subframe configured as a multicast/multicast single frequency network MBSFN of the target carrier serving as the secondary carrier; or

The detection time period may be an unused uplink subframe of the target carrier serving as the secondary carrier.

By adopting the above-mentioned method for detecting the availability of the unlicensed frequency band carrier provided by the fourth embodiment of the present invention, the availability detection of the unlicensed frequency band carrier is realized, thereby providing a reference basis for the usable carrier for the carrier aggregation using the unlicensed frequency band, thereby ensuring the use of license. Various requirements for carrier aggregation of frequency bands and unlicensed frequency bands, including the guarantee requirements for the performance of other networks using the unlicensed frequency bands, and the traffic performance requirements of this network.

Example 5:

Based on the same inventive concept, according to the method for detecting the availability of an unlicensed frequency band provided in the above-mentioned Embodiment 4 of the present invention, correspondingly, Embodiment 5 of the present invention also provides a device for detecting the availability of an unlicensed frequency band, which is applied to the network side. Its structural diagram is as follows: As shown in Figure 7, it includes:

A detection unit 701, configured to detect the signal power of other network signals carried by the target carrier of the unlicensed frequency band;

Availability determination unit 702, configured to determine that the target carrier is an unavailable carrier when the signal power is greater than a first power threshold; when the signal power is not greater than the first power threshold, determine that the target carrier is available carrier.

Further, the availability determination unit 702 is specifically configured to, when the signal power is not greater than the first power threshold, and the signal power of the local network signal carried by the target carrier is greater than the second power threshold, determine the The target carrier is a restricted available carrier; when the signal power is not greater than the first power threshold, and the signal power of the local network signal carried by the target carrier is not greater than the second power threshold, determine the The target carrier is a fully available carrier.

Further, it also includes:

A detection triggering unit 703, configured to monitor the arrival of the detection period before the detection unit detects the signal power of other network signals borne by the target carrier in the unlicensed frequency band; and/or, determine the local network signal borne by the target carrier The signal quality does not meet the preset signal quality conditions.

Further, the detection triggering unit 703 is specifically configured to determine that the CQI of the channel quality feedback information of the target carrier in the local network is less than the preset CQI threshold; or, to determine the block error of the local network signal carried by the target carrier. The code rate BLER is greater than the preset BLER threshold; or, it is determined that the number of NACK feedbacks of the target carrier in the network in the preset time period is greater than the preset NACK threshold.

Further, the detection unit 701 is specifically configured for the network side to detect the signal power of other network signals carried by the target carrier of the unlicensed frequency band within the detection time period.

Further, the detection time period is a subframe of the target carrier serving as a secondary carrier that is configured as a multicast/multicast single frequency network MBSFN; or

The detection time period is an undelivered uplink subframe of the target carrier serving as the secondary carrier.

The functions of the units in the above FIG. 7 may correspond to the corresponding processing steps in the flow shown in FIG. 6 , which will not be repeated here.

Example 6:

Embodiment 6 of the present invention provides a method for detecting the availability of an unlicensed frequency band, which is applied to the network side, as shown in FIG. 8 , including:

Step 801: The network side sends the detection configuration information for performing availability detection on the target carrier of the unlicensed frequency band to the terminal.

Step 802: Receive the detection result of the availability detection of the target carrier based on the detection configuration information sent by the terminal.

Correspondingly, Embodiment 6 of the present invention also provides a method for detecting the availability of an unlicensed frequency band, which is applied to the terminal side, as shown in FIG. 9 , including:

Step 901: The terminal receives the detection configuration information sent by the network side to perform availability detection on the target carrier in the unlicensed frequency band.

Step 902: Perform availability detection on the target carrier based on the detection configuration information.

Step 903: Send the detection result to the network side.

In the above methods shown in FIGS. 8-9 , the detection configuration information sent by the network side to the terminal may include at least one of the following information:

detection cycle;

The detection time period information, which may specifically be the detection time length and the detection start position;

Number of unlicensed frequency bands;

Frequency of carriers in unlicensed bands.

Correspondingly, the terminal can detect the target carrier in the unlicensed frequency band according to the above-mentioned various detection configuration information.

In the above methods shown in Figures 8-9, the detection result sent by the terminal to the network side can take the following two forms:

The first form: the detection result sent by the terminal to the network side is the signal power of other network signals carried by the terminal to detect the target carrier. Correspondingly, the network side can determine the availability of the target carrier based on the received signal power. The method provided in the above Embodiment 5 will not be described in detail here.

The second form: the terminal determines the detection result of whether the target carrier is available, and the detection result sent to the network side is the available information indicating that the target carrier is an available carrier, or the unavailable information indicating that the target carrier is an unavailable carrier, The network side can directly determine whether the target carrier is available according to the received detection result.

The method for detecting the availability of an unlicensed frequency band carrier provided by Embodiment 6 of the present invention will be described in detail below with reference to the accompanying drawings with specific embodiments.

FIG. 10 is a flowchart of a method for detecting the availability of an unlicensed frequency band carrier provided by Embodiment 6 of the present invention, which specifically includes the following processing steps:

Step 1001: The terminal sends capability information to the network side indicating that the terminal supports the availability detection of the unlicensed frequency band carrier.

The capability information may be pre-configured on the terminal when the terminal leaves the factory, and the terminal may directly acquire and send it.

Step 1002: After receiving the capability information sent by the terminal, the network side sends, to the terminal, detection configuration information for performing availability detection on the target carrier in the unlicensed frequency band.

The sent detection configuration information may include at least one of the following information:

detection cycle;

The detection time period information, which may specifically be the detection time length and the detection start position;

Number of unlicensed frequency bands;

Frequency of carriers in unlicensed bands.

For the detection configuration information that is not included in the detection configuration information and needs to be used when the terminal performs detection, a method of pre-configuration on the terminal may be adopted for the terminal to use when performing detection.

In this step, the network side may use a broadcast mode or a dedicated signaling mode to send the detection configuration information to the terminal.

In this embodiment of the present invention, when the default terminal supports the availability detection of unlicensed frequency band carriers, the execution of the foregoing step 1001 may be canceled.

Step 1003: After receiving the detection configuration information sent by the network side, the terminal performs availability detection on the target carrier of the unlicensed frequency band based on the detection configuration information.

Among them, the unlicensed frequency bands to be detected can be all unlicensed frequency bands, pre-configured unlicensed frequency bands, or unlicensed frequency bands indicated by the number of the unlicensed frequency bands in the detection configuration information, that is, the number indicates the unlicensed frequency band. The target carrier in the unlicensed frequency band is available for availability detection.

The target carrier to be detected can be all carriers in the unlicensed frequency band to be detected, or a pre-configured carrier, or a carrier in the unlicensed frequency band indicated by the frequency of the carrier in the detection configuration information, that is, the frequency The indicated target carrier is checked for availability.

In this step, the availability detection of the unlicensed frequency band carrier may be periodically triggered, for example, the detection period is monitored, and when the detection period arrives, the availability detection of the target carrier of the unlicensed frequency band is triggered. The detection period may be pre-configured or included in the received detection configuration information.

Periodic detection is adopted, and the current detection result is valid in this period, that is, before the arrival of the next detection period, the carrier availability result detected in this period remains unchanged.

The availability detection of the unlicensed band carrier can also be triggered by an event. For example, when it is determined that the signal quality of the local network signal carried by the target carrier in the unlicensed band does not meet the preset signal quality conditions, the availability of the target carrier in the unlicensed band is triggered. detection.

Wherein, it is determined that the signal quality of the local network signal carried by the target carrier does not meet the preset signal quality condition, which may specifically include:

Determine that the channel quality feedback information CQI of the target carrier in this network is less than the preset CQI threshold; or

Determine that the block error rate BLER of the local network signal carried by the target carrier is greater than the preset BLER threshold; or

It is determined that the number of NACK feedbacks of the target carrier in the network within the preset time period is greater than the preset NACK threshold value.

A combination of periodic triggering and event triggering can also be used.

In this step, the terminal may also perform availability detection on the unlicensed frequency band carrier within the detection time period, and the detection time period may be pre-configured, or may be the detection indicated by the detection time period information included in the received detection configuration information. The time period, that is, within the detection time period indicated by the detection time period information, the availability detection of the target carrier is performed.

The detection time period information may specifically be the detection time length and the detection start position, that is, the detection time period may be represented by the detection time length and the detection start position, and the detection time period may be one or more subframes, or is one or more OFDM symbols.

Further, when the secondary carrier adopts the frequency division duplex FDD mode, the detection period indicated by the detection time period information may be the subframe configured as the multicast/multicast single frequency network MBSFN of the secondary carrier, and the subframe configured as the MBSFN. The frame may be all subframes of the secondary carrier, or may be part of the subframes;

The detection time period indicated by the detection time period information may also be an unallocated uplink subframe of the secondary carrier, and the unallocated uplink subframe may be all the uplink subframes of the secondary carrier, or may be a part of the uplink subframe.

In this step, the detection result obtained by the terminal may be in the above-mentioned first form, or may be in the above-mentioned second form.

Taking obtaining the detection result of the second form as an example, the specific detection process for the terminal to perform availability detection on the target carrier of the unlicensed frequency band based on the detection configuration information is described in detail, which may include the following steps 1003-1 to 1003-2 :

Step 1003-1: The terminal detects the signal power of other network signals carried by the target carrier in the unlicensed frequency band.

Step 1003-2: When the signal power is greater than the first power threshold, determine the target carrier as an unavailable carrier; when the signal power is not greater than the first power threshold, determine the target carrier as an available carrier.

Further, when the signal power is not greater than the first power threshold, the relationship between the signal power of the local network signal carried by the target carrier and the second power threshold can also be compared, and when the signal power is greater than the second power threshold. , the target carrier is determined to be a restricted available carrier; when the signal power of the local network signal carried by the target carrier is not greater than the second power threshold, the target carrier is determined to be a fully available carrier. Compared to restricted available carriers, fully available carriers are more conducive to carrier aggregation with carriers in licensed frequency bands.

The first power threshold and the second power threshold may be flexibly determined according to the actual situation of the target carrier, for example, the first power threshold is -72dBm/MHz, and the second power threshold is -55dBm/MHz.

Step 1004: The terminal sends the detection result to the network side.

Step 1005, the network side may receive multiple detection results for the availability detection of the same target carrier in the unlicensed frequency band sent by multiple terminals, and may determine the availability of the same target carrier according to each detection result (including One form of detection results is determined, and directly obtained according to the above-mentioned second form of detection results), at this time, the network side can jointly consider according to the multiple received detection results, and determine the final availability of the same target carrier. Test results. For example, it could be as follows:

When the received multiple detection results of the availability detection of the same target carrier in the unlicensed frequency band sent by multiple terminals all indicate that the same target carrier is an available carrier, determine that the same target carrier is an available carrier;

When there is a detection result indicating that the same target carrier is an unavailable carrier among the multiple detection results of the availability detection of the same target carrier in the unlicensed frequency band sent by multiple terminals, it is determined that the same target carrier is an unavailable carrier .

Step 1006, further, when the received multiple detection results of the availability detection of the same target carrier in the unlicensed frequency band sent by multiple terminals all indicate that the same target carrier is an available carrier, that is, the final detection result is the same target. When the carrier is an available carrier, the network side can also determine the final available time of the same target carrier according to the multiple available times of the same target carrier determined by the multiple detection results. For example, the following methods can be used:

When multiple available times of the same target carrier determined for the multiple detection results are the same, determining the same available time as the final available time of the same target carrier;

When the multiple available times of the same target carrier determined according to the multiple detection results are different, the intersection time of the multiple available times is determined as the final available time of the same target carrier.

By adopting the above-mentioned method for detecting the availability of a carrier in an unlicensed frequency band provided in the sixth embodiment of the present invention, the availability detection of a carrier in an unlicensed frequency band is realized, thereby providing a reference basis for a usable carrier for the carrier aggregation using an unlicensed frequency band, thereby ensuring the use of authorization. Various requirements for carrier aggregation of frequency bands and unlicensed frequency bands, including the guarantee requirements for the performance of other networks using the unlicensed frequency bands, and the traffic performance requirements of this network.

Example 7:

Based on the same inventive concept, according to the method for detecting the availability of an unlicensed frequency band provided in the sixth embodiment of the present invention, correspondingly, the seventh embodiment of the present invention also provides a device for detecting the availability of an unlicensed frequency band, which is applied to the network side. Its structural diagram is as follows: As shown in Figure 11, it includes:

A sending unit 1101, configured to send detection configuration information for performing availability detection on the target carrier of the unlicensed frequency band to the terminal;

The receiving unit 1102 is configured to receive the detection result of the availability detection of the target carrier based on the detection configuration information sent by the terminal.

Further, the detection configuration information includes a detection period;

The receiving unit 1102 is specifically configured to receive the detection result of the availability detection of the target carrier when the detection period arrives and sent by the terminal.

Further, the receiving unit 1102 is specifically configured to receive, after it is determined that the signal quality of the local network signal carried by the target carrier does not meet the preset signal quality condition, sent by the terminal, based on the detection configuration information. The detection result of the carrier's availability detection.

Further, the detection configuration information includes detection time period information;

The receiving unit 1102 is specifically configured to receive a detection result of performing availability detection on the target carrier within the detection time period indicated by the detection time period information and sent by the terminal.

Further, the detection time period information is the detection time length and the detection start position.

Further, when the secondary carrier adopts the frequency division duplex FDD mode, the detection period indicated by the detection time period information is the subframe configured as the multicast/multicast single frequency network MBSFN of the secondary carrier; or

The detection time period indicated by the detection time period information is the undelivered uplink subframe of the secondary carrier.

Further, the detection configuration information includes the serial number of the unlicensed frequency band, or the frequency of the carrier of the unlicensed frequency band;

The receiving unit 1102 is specifically configured to receive the detection result of the availability detection of the target carrier of the unlicensed frequency band indicated by the number sent by the terminal; or

The detection result of the availability detection of the target carrier indicated by the frequency sent by the terminal is received.

Further, the receiving unit 1102 is further configured to, before the sending unit 1101 sends the detection configuration information for performing availability detection on the target carrier of the unlicensed frequency band to the terminal, receive a message sent by the terminal indicating that the terminal supports the unlicensed frequency band. Information about the capability of the carrier to perform availability detection.

Further, the detection result is that the terminal detects the signal power of other network signals carried by the target carrier;

The device also includes:

A first availability determination unit 1103, configured to determine that the target carrier is an unavailable carrier when the signal power is greater than a first power threshold; and determine the target when the signal power is not greater than the first power threshold A carrier is an available carrier.

Further, the first availability determination unit 1103 is specifically configured to, when the signal power is not greater than the first power threshold and greater than the second power threshold, determine that the target carrier is a restricted available carrier, and the the first power threshold is greater than the second power threshold;

When the signal power is not greater than the first power threshold and is not greater than the second power threshold, it is determined that the target carrier is a fully available carrier.

Further, the detection result is available information indicating that the target carrier is an available carrier, or is unavailable information indicating that the target carrier is an unavailable carrier.

Further, it also includes:

The second availability determination unit 1104 is configured to determine the same target carrier when the received multiple detection results of the availability detection of the same target carrier in the unlicensed frequency band sent by multiple terminals indicate that the same target carrier is an available carrier The carrier is the available carrier;

When there is a detection result indicating that the same target carrier is an unavailable carrier among the multiple detection results of the availability detection of the same target carrier in the unlicensed frequency band sent by multiple terminals, it is determined that the same target carrier is unavailable use carrier.

Further, it also includes:

The available time determining unit 1105 is used for receiving multiple detection results of the availability detection of the same target carrier in the unlicensed frequency band sent by multiple terminals, indicating that the same target carrier is an available carrier, and for the multiple detections When it is determined that the multiple available times of the same target carrier are different, the intersection time of the multiple available times is determined as the available time of the same target carrier.

The functions of the above-mentioned units in FIG. 11 may correspond to the corresponding processing steps in the flowcharts shown in FIG. 8 to FIG. 10 , which will not be repeated here.

Example 8:

Based on the same inventive concept, according to the method for detecting the availability of an unlicensed frequency band provided in the above-mentioned Embodiment 4 of the present invention, correspondingly, Embodiment 8 of the present invention also provides a device for detecting the availability of an unlicensed frequency band, which is applied to a terminal, and its structural diagram is shown in the figure. 12, including:

A receiving unit 1201, configured to receive the detection configuration information sent by the network side to perform availability detection on the target carrier of the unlicensed frequency band;

a detection unit 1202, configured to perform availability detection on the target carrier based on the detection configuration information;

The sending unit 1203 is configured to send the detection result to the network side.

Further, the detection configuration information includes a detection period;

The detection unit 1202 is specifically configured to perform availability detection on the target carrier when the detection period arrives.

Further, the detection unit 1202 is further configured to determine that the signal quality of the local network signal carried by the target carrier does not meet a preset signal quality condition before performing availability detection on the target carrier based on the detection configuration information.

Further, the detection unit 1202 is specifically configured to determine that the channel quality feedback information CQI of the target carrier in the network is less than a preset CQI threshold; or

Determine that the block error rate BLER of the local network signal carried by the target carrier is greater than the preset BLER threshold; or

It is determined that the number of negative acknowledgment characters NACK feedbacks of the target carrier in the network within the preset time period is greater than the preset NACK threshold value.

Further, the detection configuration information includes detection time period information;

The detection unit 1202 is specifically configured to perform availability detection on the target carrier within the detection time period indicated by the detection time period information.

Further, the detection time period information is the detection time length and the detection start position.

Further, when the secondary carrier adopts the frequency division duplex FDD mode, the detection period indicated by the detection time period information is the subframe configured as the multicast/multicast single frequency network MBSFN of the secondary carrier; or

The detection time period indicated by the detection time period information is the undelivered uplink subframe of the secondary carrier.

Further, the detection configuration information includes the serial number of the unlicensed frequency band, or the frequency of the carrier of the unlicensed frequency band;

The detection unit 1202 is specifically configured to perform availability detection on the target carrier of the unlicensed frequency band indicated by the number; or

Availability detection is performed on the target carrier indicated by the frequency.

Further, the sending unit 1203 is further configured to send, to the network side, before the receiving unit 1201 receives the detection configuration information sent by the network side for performing availability detection on the target carrier of the unlicensed frequency band, indicating that the terminal supports the unlicensed frequency band. Information about the capability of the carrier to perform availability detection.

Further, the detection unit 1202 is specifically configured to detect the signal power of other network signals carried by the target carrier;

The sending unit 1203 is specifically configured to send the signal power to the network side.

Further, the detection unit 1202 is specifically configured to detect the signal power of other network signals carried by the target carrier; and when the signal power is greater than a first power threshold, determine that the target carrier is an unavailable carrier; and when When the signal power is not greater than the first power threshold, determine that the target carrier is an available carrier;

The sending unit 1203 is specifically configured to send available information indicating that the target carrier is an available carrier, or unavailable information indicating that the target carrier is an unavailable carrier, to the network side.

Further, the detection unit 1202 is specifically configured to determine that the target carrier is a restricted available carrier when the signal power is not greater than the first power threshold and greater than the second power threshold, and the first power The threshold is greater than the second power threshold;

When the signal power is not greater than the first power threshold and is not greater than the second power threshold, determining that the target carrier is a fully available carrier;

The sending unit 1203 is specifically configured to send restricted availability information indicating that the target carrier is a restricted available carrier, or fully available information indicating that the target carrier is a fully available carrier, to the network side.

The functions of the above-mentioned units in FIG. 12 may correspond to the corresponding processing steps in the flowcharts shown in FIG. 8 to FIG. 10 , which will not be repeated here.

To sum up, the solution provided by the embodiment of the present invention includes: the network side detects the signal power of other network signals carried by the target carrier in the unlicensed frequency band; and when the signal power is greater than the first power threshold, determining that the target carrier is Unavailable carrier; when the signal power is not greater than the first power threshold, it is determined that the target carrier is an available carrier. By adopting the solution provided by the embodiment of the present invention, the detection of the availability of the license-free frequency band carrier is realized.

The apparatus for detecting the availability of unlicensed frequency bands provided by the embodiments of the present application may be implemented by a computer program. Those skilled in the art should be able to understand that the above-mentioned module division method is only one of many module division methods. If it is divided into other modules or not divided into modules, as long as the license-free frequency band availability detection device has the above functions, it should be used in this application. within the scope of protection.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block in the flowcharts and/or block diagrams, and combinations of flows and/or blocks in the flowcharts and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in one or more of the flowcharts and/or one or more blocks of the block diagrams.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions An apparatus implements the functions specified in a flow or flows of the flowcharts and/or a block or blocks of the block diagrams.

These computer program instructions can also be loaded on a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process such that The instructions provide steps for implementing the functions specified in one or more of the flowcharts and/or one or more blocks of the block diagrams.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, provided that these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims (40)

1. a license-free frequency band carrier availability detection method, is characterized in that, comprises: The network side detects the signal power of other network signals carried by the target carrier in the unlicensed frequency band; When the signal power is greater than a first power threshold, determining that the target carrier is an unavailable carrier; When the signal power is not greater than the first power threshold, determining that the target carrier is an available carrier; Wherein, when the signal power is not greater than the first power threshold, determining that the target carrier is an available carrier, specifically including: When the signal power is not greater than the first power threshold, and the signal power of the local network signal carried by the target carrier is greater than the second power threshold, determining that the target carrier is a restricted available carrier; When the signal power is not greater than the first power threshold, and the signal power of the local network signal carried by the target carrier is not greater than the second power threshold, determining that the target carrier is a fully available carrier; Among them, compared with restricted available carriers, fully available carriers are more conducive to carrier aggregation with carriers in licensed frequency bands; Wherein, the network side detects the signal power of other network signals carried by the target carrier in the unlicensed frequency band, specifically including: The network side detects the signal power of other network signals carried by the target carrier of the unlicensed frequency band within the detection time period; Wherein, the detection time period is a subframe of the target carrier serving as a secondary carrier that is configured as a multicast/multicast single frequency network MBSFN; Invoked uplink subframe. 2. The method according to claim 1, wherein before the network side detects the signal power of other network signals carried by the target carrier of the unlicensed frequency band, the method further comprises: monitor the arrival of the detection period; and/or It is determined that the signal quality of the local network signal carried by the target carrier does not meet the preset signal quality condition. 3. The method according to claim 2, wherein determining that the signal quality of the local network signal carried by the target carrier does not meet a preset signal quality condition, specifically comprising: Determine that the channel quality feedback information CQI of the target carrier in this network is less than a preset CQI threshold; or Determine that the block error rate BLER of the local network signal carried by the target carrier is greater than the preset BLER threshold; or It is determined that the number of negative acknowledgment characters NACK feedbacks of the target carrier in the network within the preset time period is greater than the preset NACK threshold value. 4. A license-free frequency band carrier availability detection device, characterized in that, comprising: a detection unit, configured to detect the signal power of other network signals carried by the target carrier in the unlicensed frequency band; an availability determination unit, configured to determine that the target carrier is an unavailable carrier when the signal power is greater than a first power threshold; and determine that the target carrier is available when the signal power is not greater than the first power threshold carrier; The availability determination unit is specifically configured to determine the target when the signal power is not greater than the first power threshold and the signal power of the local network signal carried by the target carrier is greater than the second power threshold The carrier is a restricted available carrier, and the first power threshold is greater than the second power threshold; when the signal power is not greater than the first power threshold, and the signal power of the local network signal carried by the target carrier is not When greater than the second power threshold, determine that the target carrier is a fully available carrier; Among them, compared with restricted available carriers, fully available carriers are more conducive to carrier aggregation with carriers in licensed frequency bands; Wherein, the detection unit is specifically configured to detect the signal power of other network signals carried by the target carrier of the unlicensed frequency band within the detection time period; Wherein, the detection time period is a subframe of the target carrier serving as a secondary carrier that is configured as a multicast/multicast single frequency network MBSFN; Invoked uplink subframe. 5. The apparatus of claim 4, further comprising: A detection triggering unit, configured to monitor the arrival of the detection period before the detection unit detects the signal power of other network signals borne by the target carrier in the unlicensed frequency band; and/or, determine the signal power of the local network signal borne by the target carrier The signal quality does not meet the preset signal quality conditions. 6. The apparatus according to claim 5, wherein the detection triggering unit is specifically configured to determine that the channel quality feedback information CQI of the target carrier in the local network is less than a preset CQI threshold; or, to determine The block error rate BLER of the local network signal carried by the target carrier is greater than a preset BLER threshold; or, it is determined that the number of negative acknowledgement characters NACK feedback of the target carrier in the local network within a preset time period is greater than a preset NACK threshold value. 7. A method for detecting the availability of an unlicensed frequency band carrier, comprising: The network side sends the detection configuration information for the availability detection of the target carrier in the unlicensed frequency band to the terminal; receiving a detection result of performing availability detection on the target carrier based on the detection configuration information and sent by the terminal; Wherein, the detection result is that the terminal detects the signal power of other network signals carried by the target carrier; The method also includes: When the signal power is greater than a first power threshold, determining that the target carrier is an unavailable carrier; When the signal power is not greater than the first power threshold, determining that the target carrier is an available carrier; Wherein, when the signal power is not greater than the first power threshold, determining that the target carrier is an available carrier, specifically including: When the signal power is not greater than the first power threshold, and the signal power of the local network signal carried by the target carrier is greater than the second power threshold, it is determined that the target carrier is a restricted available carrier, and the first The power threshold is greater than the second power threshold; When the signal power is not greater than the first power threshold, and the signal power of the local network signal carried by the target carrier is not greater than the second power threshold, determining that the target carrier is a fully available carrier; Among them, compared with restricted available carriers, fully available carriers are more conducive to carrier aggregation with carriers in licensed frequency bands; Wherein, the detection configuration information includes detection time period information; Receiving the detection result of the availability detection of the target carrier based on the detection configuration information sent by the terminal is specifically: receiving, sent by the terminal, a detection result of performing availability detection on the target carrier within the detection time period indicated by the detection time period information; Wherein, the detection time period indicated by the detection time period information is a subframe of the target carrier serving as a secondary carrier that is configured as a multicast/multicast single frequency network MBSFN; or The detection time period indicated by the detection time period information is an unused uplink subframe of the target carrier serving as the secondary carrier. 8. The method of claim 7, wherein the detection configuration information includes a detection period. 9. The method according to claim 7, wherein receiving the detection result of the availability detection of the target carrier based on the detection configuration information sent by the terminal is specifically: Receive the detection result of the availability detection of the target carrier based on the detection configuration information after determining that the signal quality of the local network signal carried by the target carrier does not meet the preset signal quality condition and sent by the terminal. 10. The method according to claim 7, wherein the detection configuration information includes the serial number of the unlicensed frequency band, or the frequency of the carrier of the unlicensed frequency band; Receiving the detection result of the availability detection of the target carrier based on the detection configuration information sent by the terminal specifically includes: receiving the detection result of the availability detection of the target carrier in the unlicensed frequency band indicated by the number sent by the terminal; or The detection result of the availability detection of the target carrier indicated by the frequency sent by the terminal is received. 11. The method according to claim 7, wherein before sending the detection configuration information for performing availability detection on the target carrier of the unlicensed frequency band to the terminal, the method further comprises: Receive capability information that is sent by the terminal and indicates that the terminal supports availability detection for unlicensed frequency band carriers. 12. The method according to any one of claims 7-11, wherein the detection result is available information indicating that the target carrier is an available carrier, or is unavailable information indicating that the target carrier is an unavailable carrier. use information. 13. The method of any one of claims 7-11, further comprising: When the received multiple detection results of the availability detection of the same target carrier in the unlicensed frequency band sent by multiple terminals all indicate that the same target carrier is an available carrier, determining that the same target carrier is an available carrier; When there is a detection result indicating that the same target carrier is an unavailable carrier among the multiple detection results of the availability detection of the same target carrier in the unlicensed frequency band sent by multiple terminals, it is determined that the same target carrier is unavailable use carrier. 14. The method of any one of claims 7-11, further comprising: When the received multiple detection results of the availability detection of the same target carrier in the unlicensed frequency band sent by multiple terminals all indicate that the same target carrier is an available carrier, and the same target carrier determined for the multiple detection results When the multiple available times are different, the intersection time of the multiple available times is determined as the available time of the same target carrier. 15. A method for detecting the availability of an unlicensed frequency band carrier, comprising: The terminal receives the detection configuration information sent by the network side to perform availability detection on the target carrier of the unlicensed frequency band; performing availability detection on the target carrier based on the detection configuration information; Send the detection result to the network side; Wherein, the availability detection of the target carrier specifically includes: Detecting the signal power of other network signals carried by the target carrier; When the signal power is greater than a first power threshold, determining that the target carrier is an unavailable carrier; When the signal power is not greater than the first power threshold, determining that the target carrier is an available carrier; Wherein, when the signal power is not greater than the first power threshold, determining that the target carrier is an available carrier, specifically including: When the signal power is not greater than the first power threshold, and the signal power of the local network signal carried by the target carrier is greater than the second power threshold, it is determined that the target carrier is a restricted available carrier, and the first The power threshold is greater than the second power threshold; When the signal power is not greater than the first power threshold, and the signal power of the local network signal carried by the target carrier is not greater than the second power threshold, determining that the target carrier is a fully available carrier; Among them, compared with restricted available carriers, fully available carriers are more conducive to carrier aggregation with carriers in licensed frequency bands; Wherein, the detection configuration information includes detection time period information; The availability detection of the target carrier based on the detection configuration information is specifically: Perform availability detection on the target carrier within the detection time period indicated by the detection time period information; Wherein, the detection time period indicated by the detection time period information is a subframe of the target carrier serving as a secondary carrier that is configured as a multicast/multicast single frequency network MBSFN; or The detection time period indicated by the detection time period information is an unused uplink subframe of the target carrier serving as the secondary carrier. 16. The method of claim 15, wherein the detection configuration information includes a detection period; The availability detection of the target carrier based on the detection configuration information is specifically: The availability detection of the target carrier is performed when the detection period arrives. 17. The method of claim 15, before performing availability detection on the target carrier based on the detection configuration information, further comprising: It is determined that the signal quality of the local network signal carried by the target carrier does not meet the preset signal quality condition. 18. The method according to claim 17, wherein determining that the signal quality of the local network signal carried by the target carrier does not meet a preset signal quality condition, specifically comprising: Determine that the channel quality feedback information CQI of the target carrier in this network is less than a preset CQI threshold; or Determine that the block error rate BLER of the local network signal carried by the target carrier is greater than the preset BLER threshold; or It is determined that the number of negative acknowledgment characters NACK feedbacks of the target carrier in the network within the preset time period is greater than the preset NACK threshold value. 19. The method according to claim 15, wherein the detection configuration information includes the serial number of the unlicensed frequency band, or the frequency of the carrier of the unlicensed frequency band; The availability detection of the target carrier based on the detection configuration information is specifically: Perform availability detection on the target carrier of the unlicensed frequency band indicated by the number; or Availability detection is performed on the target carrier indicated by the frequency. 20. The method according to claim 15, before receiving the detection configuration information sent by the network side to perform availability detection on the target carrier of the unlicensed frequency band, further comprising: Sending capability information indicating that the terminal supports availability detection for unlicensed frequency band carriers to the network side. 21. The method according to any one of claims 15-20, wherein, performing availability detection on the target carrier, specifically comprising: Detecting the signal power of other network signals carried by the target carrier; Send the detection result to the network side, specifically: The signal power is sent to the network side. 22. The method according to any one of claims 15-20, wherein sending the detection result to the network side is specifically: Sending available information indicating that the target carrier is an available carrier, or unavailable information indicating that the target carrier is an unavailable carrier, to the network side. 23. The method according to claim 22, wherein sending available information indicating that the target carrier is an available carrier to the network side specifically comprises: Restricted availability information indicating that the target carrier is a restricted available carrier, or fully available information indicating that the target carrier is a fully available carrier is sent to the network side. 24. A license-free frequency band carrier availability detection device, characterized in that, comprising: a sending unit, configured to send detection configuration information for performing availability detection on the target carrier of the unlicensed frequency band to the terminal; a receiving unit, configured to receive a detection result sent by the terminal for performing availability detection on the target carrier based on the detection configuration information; Wherein, the detection result is that the terminal detects the signal power of other network signals carried by the target carrier; The device also includes: a first availability determination unit, configured to determine that the target carrier is an unavailable carrier when the signal power is greater than a first power threshold; and determine the target carrier when the signal power is not greater than the first power threshold is the available carrier; Wherein, the first availability determination unit is specifically configured to, when the signal power is not greater than the first power threshold, and the signal power of the local network signal carried by the target carrier is greater than the second power threshold, determine the The target carrier is a restricted available carrier, and the first power threshold is greater than the second power threshold; When the signal power is not greater than the first power threshold, and the signal power of the local network signal carried by the target carrier is not greater than the second power threshold, determining that the target carrier is a fully available carrier; Among them, compared with restricted available carriers, fully available carriers are more conducive to carrier aggregation with carriers in licensed frequency bands; Wherein, the detection configuration information includes detection time period information; The receiving unit is specifically configured to receive a detection result of performing availability detection on the target carrier within the detection time period indicated by the detection time period information and sent by the terminal; Wherein, the detection time period indicated by the detection time period information is a subframe of the target carrier serving as a secondary carrier that is configured as a multicast/multicast single frequency network MBSFN; or The detection time period indicated by the detection time period information is an unused uplink subframe of the target carrier serving as the secondary carrier. 25. The apparatus of claim 24, wherein the detection configuration information includes a detection period. 26. The apparatus according to claim 24, wherein the receiving unit is specifically configured to receive the signal quality of the local network signal carried by the target carrier and sent by the terminal when it is determined that the signal quality does not meet the preset signal quality After the conditions are met, a detection result of availability detection is performed on the target carrier based on the detection configuration information. 27. The apparatus according to claim 24, wherein the detection configuration information includes the serial number of the unlicensed frequency band, or the frequency of the carrier of the unlicensed frequency band; The receiving unit is specifically configured to receive the detection result of the availability detection of the target carrier in the unlicensed frequency band indicated by the serial number sent by the terminal; or The detection result of the availability detection of the target carrier indicated by the frequency sent by the terminal is received. 28. The apparatus according to claim 24, wherein the receiving unit is further configured to receive the detection configuration information for performing availability detection on the target carrier of the unlicensed frequency band to the terminal by the sending unit. The capability information sent by the terminal indicating that the terminal supports the availability detection of the unlicensed frequency band carrier. 29. The apparatus according to any one of claims 24-28, wherein the detection result is available information indicating that the target carrier is an available carrier, or is unavailable information indicating that the target carrier is an unavailable carrier. use information. 30. The apparatus of any one of claims 24-28, further comprising: The second availability determination unit is configured to determine the same target carrier when the received multiple detection results of the availability detection of the same target carrier in the unlicensed frequency band sent by multiple terminals indicate that the same target carrier is an available carrier is the available carrier; When there is a detection result indicating that the same target carrier is an unavailable carrier among the multiple detection results of the availability detection of the same target carrier in the unlicensed frequency band sent by multiple terminals, it is determined that the same target carrier is unavailable use carrier. 31. The apparatus of any one of claims 24-28, further comprising: The available time determination unit is used for receiving multiple detection results of the availability detection of the same target carrier in the unlicensed frequency band sent by multiple terminals, indicating that the same target carrier is an available carrier, and for the multiple detection results When the determined available times of the same target carrier are different, the intersection time of the multiple available times is determined as the available time of the same target carrier. 32. A license-free frequency band carrier availability detection device, characterized in that, comprising: a receiving unit, configured to receive the detection configuration information sent by the network side to perform availability detection on the target carrier of the unlicensed frequency band; a detection unit, configured to perform availability detection on the target carrier based on the detection configuration information; a sending unit, configured to send the detection result to the network side; Wherein, the detection unit is specifically configured to detect the signal power of other network signals carried by the target carrier; and when the signal power is greater than a first power threshold, determine that the target carrier is an unavailable carrier; and when the signal power is greater than a first power threshold When the signal power is not greater than the first power threshold, determine that the target carrier is an available carrier; The detection unit is specifically configured to determine that the target carrier is limited when the signal power is not greater than the first power threshold and the signal power of the local network signal carried by the target carrier is greater than the second power threshold available carrier, the first power threshold is greater than the second power threshold; when the signal power is not greater than the first power threshold, and the signal power of the network signal carried by the target carrier is not greater than the At the second power threshold, determining that the target carrier is a fully available carrier; Among them, compared with restricted available carriers, fully available carriers are more conducive to carrier aggregation with carriers in licensed frequency bands; Wherein, the detection configuration information includes detection time period information; The detection unit is specifically configured to perform availability detection on the target carrier within the detection time period indicated by the detection time period information; Wherein, the detection time period indicated by the detection time period information is a subframe of the target carrier serving as a secondary carrier that is configured as a multicast/multicast single frequency network MBSFN; or The detection time period indicated by the detection time period information is an unused uplink subframe of the target carrier serving as the secondary carrier. 33. The apparatus of claim 32, wherein the detection configuration information includes a detection period; The detection unit is specifically configured to perform availability detection on the target carrier when the detection period arrives. 34. The apparatus according to claim 32, wherein the detection unit is further configured to determine the local network borne by the target carrier before performing availability detection on the target carrier based on the detection configuration information The signal quality of the signal does not meet the preset signal quality conditions. 35. The apparatus according to claim 34, wherein the detection unit is specifically configured to determine that the channel quality feedback information CQI of the target carrier in the local network is less than a preset CQI threshold; or Determine that the block error rate BLER of the local network signal carried by the target carrier is greater than the preset BLER threshold; or It is determined that the number of negative acknowledgment characters NACK feedbacks of the target carrier in the network within the preset time period is greater than the preset NACK threshold value. 36. The apparatus according to claim 32, wherein the detection configuration information includes the serial number of the unlicensed frequency band, or the frequency of the carrier of the unlicensed frequency band; The detection unit is specifically configured to perform availability detection on the target carrier of the unlicensed frequency band indicated by the number; or Availability detection is performed on the target carrier indicated by the frequency. 37. The apparatus according to claim 32, wherein the sending unit is further configured to, before the receiving unit receives the detection configuration information sent by the network side to perform availability detection on the target carrier of the unlicensed frequency band The network side sends capability information indicating that the terminal supports the availability detection of unlicensed frequency band carriers. 38. The apparatus according to any one of claims 32-37, wherein the detection unit is specifically configured to detect the signal power of other network signals carried by the target carrier; The sending unit is specifically configured to send the signal power to the network side. 39. The apparatus according to any one of claims 32-37, wherein the sending unit is specifically configured to send available information indicating that the target carrier is an available carrier to the network side, or, indicating that the target carrier is available Unavailable information for unavailable carriers. 40. The apparatus according to claim 39, wherein the sending unit is specifically configured to send to the network side restricted availability information indicating that the target carrier is a restricted available carrier, or, indicating that the target carrier is Fully available information for fully available carriers.