CN106793098B

CN106793098B - Air interface frame structure frame and configuration method thereof, and base station

Info

Publication number: CN106793098B
Application number: CN201610204262.9A
Authority: CN
Inventors: 徐伟杰; 潘振岗
Original assignee: Beijing Spreadtrum Hi Tech Communications Technology Co Ltd
Current assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Priority date: 2016-04-01
Filing date: 2016-04-01
Publication date: 2020-03-20
Anticipated expiration: 2036-04-01
Also published as: CN106793098A

Abstract

An air interface frame structure frame and a configuration method thereof, a base station, the configuration method includes: and configuring sub-bands of at least two carrier parameters in the system bandwidth, and communicating with the terminals corresponding to the carrier parameters respectively through the frequency band positions of the sub-bands of the at least two carrier parameters. By adopting the scheme, the interference between the sub-bands with different carrier parameters can be avoided.

Description

Air interface frame structure frame and configuration method thereof, and base station

Technical Field

The present invention relates to the field of wireless communications, and in particular, to an air interface frame structure frame, a configuration method thereof, and a base station.

Background

With the continuous forward evolution of wireless communication technology, the requirements on the capacity, transmission rate and the like of mobile data are higher and higher, and the emerging services of the internet of things, the internet of vehicles, the mobile internet and the like provide new and diversified requirements for the design of a communication system. The fifth generation mobile communication technology (5G) arose.

Third generation partnership project (3)^rdGeneration Partnership Project, 3GPP) put explicit scene requirements on the 5G new air interface technology: the 5G new air interface technology needs to support service requirements of three different scenarios, namely mobile broadband enhancement (eMBB), large-scale machine type Communication (massive MTC), and low-Latency high-reliability Communication (URLLC), in the same frame structure framework. The frame structure and waveform parameters corresponding to the three service requirements are different.

Disclosure of Invention

The technical problem solved by the invention is how to transmit various types of services in the system bandwidth.

To solve the foregoing technical problem, an embodiment of the present invention provides a method for configuring an air interface frame structure frame, where the method includes: and configuring sub-bands of at least two carrier parameters in the system bandwidth, and communicating with the terminals corresponding to the carrier parameters respectively through the frequency band positions of the sub-bands of the at least two carrier parameters.

Optionally, a guard band is configured between the sub-bands of the at least two carrier parameters.

Optionally, the sub-bands of the carrier parameter configured in the system bandwidth include at least two of the following: the system comprises a first sub-band used for transmitting mobile broadband enhancement, a second sub-band used for transmitting large-scale machine type communication and a third sub-band used for transmitting low-delay high-reliability communication.

Optionally, when subbands with three carrier parameters are configured in the system bandwidth, the first subband is configured between the second subband and the third subband.

Optionally, a first guard band is configured between the first sub-band and the second sub-band; a second guard band is configured between the first sub-band and the third sub-band.

Optionally, at least one of the second subband and the third subband includes at least one carrier of a primary carrier type, where the carrier of the primary carrier type includes any one of: a carrier containing a synchronization signal, a carrier containing a primary broadcast channel, a carrier containing a secondary broadcast channel, or a carrier containing a paging signal.

Optionally, when a carrier of a primary carrier type is included in the second subband, the configuration method further includes: setting the minimum frequency value of the second sub-band to be larger than the maximum frequency values of other sub-bands, and configuring the available carrier with the maximum frequency value in the second sub-band as a main carrier; and setting the maximum frequency value of the second sub-band to be smaller than the minimum frequency values of other sub-bands, and configuring the available carrier with the minimum frequency value in the second sub-band as a main carrier.

Optionally, when the second sub-band includes carriers of n main carrier types, the configuration method further includes: setting the minimum frequency value of the second sub-band to be larger than the maximum frequency values of other sub-bands, and configuring the available carrier with the maximum frequency value in the second sub-band as a main carrier; configuring the first n-1 available carriers with the maximum frequency value except the available carrier with the maximum frequency value in the second sub-band as the carriers of the remaining n-1 main carrier types; setting the maximum frequency value of the second sub-band to be smaller than the maximum frequency values of other sub-bands, and configuring the available carrier with the minimum frequency value in the second sub-band as a main carrier; configuring the first n-1 available carriers with the minimum frequency value except the available carrier with the minimum frequency value in the second sub-band as the carriers of the remaining n-1 main carrier types; the primary carrier is any one of the n primary carrier types, n > 1.

Optionally, when a carrier of a primary carrier type is included in the third subband, the configuration method further includes: setting the minimum frequency value of the third sub-band to be larger than the maximum frequency values of other sub-bands, and configuring the available carrier with the maximum frequency value in the third sub-band as a main carrier; and setting the maximum frequency value of the third sub-band to be smaller than the minimum frequency values of other sub-bands, and configuring the available carrier with the minimum frequency value in the third sub-band as a main carrier.

Optionally, when m carriers of the primary carrier type are included in the third sub-band, the configuration method further includes: setting the minimum frequency value of the third sub-band to be larger than the maximum frequency values of other sub-bands, and configuring the available carrier with the maximum frequency value in the third sub-band as a main carrier; configuring the first m-1 available carriers with the maximum frequency value except the available carrier with the maximum frequency value in the third sub-band as the carriers of the remaining m-1 main carrier types; setting the maximum frequency value of the third sub-band to be smaller than the maximum frequency values of other sub-bands, and configuring the available carrier with the minimum frequency value in the third sub-band as a main carrier; configuring the first m-1 available carriers with the minimum frequency value except the available carrier with the minimum frequency value in the third sub-band as the carriers of the remaining m-1 main carrier types; the main carrier is any one of the m main carrier types, and m is greater than 1.

Optionally, the method for configuring an air interface frame structure frame further includes: when the main carrier contains the synchronous signal, configuring the frequency value of the central frequency point of the frequency band occupied by the synchronous signal to be integral multiple of the grid width of the synchronous channel.

Optionally, the method for configuring an air interface frame structure frame further includes: and adjusting the bandwidth of each sub-band according to the transmitted service load.

Optionally, the adjusting the bandwidth of each sub-band according to the transmitted traffic load includes at least one of: adjusting the bandwidth of the second sub-band according to the service load of the large-scale machine type communication; adjusting the bandwidth of the third sub-band according to the service load of the low-delay high-reliability communication; and adjusting the bandwidth of the first sub-band according to at least one of the adjusted bandwidth of the second sub-band and the adjusted bandwidth of the third sub-band.

Optionally, the adjusting the bandwidth of the second sub-band according to the traffic load of the large-scale machine type communication includes: when detecting that the capacity of the current configured carrier cannot meet the service load of the large-scale machine type communication, increasing the bandwidth of the second sub-band; and reducing the bandwidth of the second sub-band when the capacity of the carrier is still satisfied with the service load of transmitting the large-scale machine type communication after the reduction of the carrier in the second sub-band is detected.

Optionally, the increasing the bandwidth of the second subband includes: and increasing the number of the carriers of the second sub-band, wherein the newly increased carriers are used for transmitting the services of the large-scale machine type communication, and the newly increased carriers are adjacent to the configured carriers.

Optionally, the reducing the bandwidth of the second subband includes: reducing the number of carriers in the second sub-band, wherein the reduced carriers are the first n of the configured carriers with the largest frequency difference with the main carrier₁Number of carriers, n₁＝x₁-y₁，x₁For the number of configured carriers, y₁The minimum number of carriers to satisfy the traffic load of the large-scale machine type communication.

Optionally, adjusting the bandwidth of the third sub-band according to the service load of the low-latency high-reliability communication includes: when detecting that the capacity of the current configured carrier cannot meet the service load of the low-delay high-reliability communication, increasing the bandwidth of the third sub-band; and after the reduction of the carrier in the third sub-band is detected, reducing the bandwidth of the third sub-band when the capacity of the carrier still meets the service load of transmitting the low-delay high-reliability communication.

Optionally, the increasing the bandwidth of the third subband includes: and increasing the number of carriers in the third sub-band, wherein newly increased carriers are used for the service load of the low-delay high-reliability communication, and the newly increased carriers are adjacent to the configured carriers.

Optionally, the reducing the bandwidth of the third subband includes: reducing the number of carriers in the third sub-band, wherein the reduced carriers are the first m of the configured carriers with the largest frequency difference with the main carrier₁Number of carriers, m₁＝x₂-y₂，x₂For the number of configured carriers, y₂The minimum number of carriers for satisfying the service load of the low-delay and high-reliability communication is provided.

Optionally, the adjusting the bandwidth of the first subband includes: when a first sub-band is configured in the system bandwidth, classifying unoccupied available carriers in the system bandwidth as the first sub-band.

Optionally, the method for configuring an air interface frame structure frame further includes: when three sub-bands are configured in the system bandwidth, the carrier wave containing the control channel in the first sub-band is configured in the preset bandwidth around the central frequency point of the system bandwidth.

To solve the above problem, an embodiment of the present invention provides a base station, including: and the configuration unit is used for configuring sub-bands of at least two carrier parameters in the system bandwidth, and communicating with the terminals corresponding to the carrier parameters respectively through the frequency band positions of the sub-bands of the at least two carrier parameters.

Optionally, the sub-bands of the carrier parameters configured by the configuration unit in the system bandwidth include at least two of the following: the system comprises a first sub-band used for transmitting mobile broadband enhancement, a second sub-band used for transmitting large-scale machine type communication and a third sub-band used for transmitting low-delay high-reliability communication.

Optionally, the configuration unit is configured to: when the subbands with three carrier parameters are configured in the system bandwidth, the first subband is configured between the second subband and the third subband.

Optionally, the configuration unit is configured to: configuring a first guard band between the first sub-band and the second sub-band; configuring a second guard band between the first sub-band and the third sub-band.

Optionally, the configuration unit is further configured to: when the second sub-band contains a carrier of a main carrier type, setting the minimum frequency value of the second sub-band to be larger than the maximum frequency values of other sub-bands, and configuring the available carrier with the maximum frequency value in the second sub-band as a main carrier; and setting the maximum frequency value of the second sub-band to be smaller than the minimum frequency values of other sub-bands, and configuring the available carrier with the minimum frequency value in the second sub-band as a main carrier.

Optionally, the configuration unit is further configured to: when the second sub-band contains n carriers of main carrier types, setting the minimum frequency value of the second sub-band to be larger than the maximum frequency values of other sub-bands, and configuring the available carrier with the maximum frequency value in the second sub-band as a main carrier; configuring the first n-1 available carriers with the maximum frequency value except the available carrier with the maximum frequency value in the second sub-band as the carriers of the remaining n-1 main carrier types; setting the maximum frequency value of the second sub-band to be smaller than the maximum frequency values of other sub-bands, and configuring the available carrier with the minimum frequency value in the second sub-band as a main carrier; configuring the first n-1 available carriers with the minimum frequency value except the available carrier with the minimum frequency value in the second sub-band as the carriers of the remaining n-1 main carrier types; the primary carrier is any one of the n primary carrier types, n > 1.

Optionally, the configuration unit is further configured to: when the third sub-band contains a carrier of a main carrier type, setting the minimum frequency value of the third sub-band to be larger than the maximum frequency values of other sub-bands, and configuring the available carrier with the maximum frequency value in the third sub-band as a main carrier; and setting the maximum frequency value of the third sub-band to be smaller than the minimum frequency values of other sub-bands, and configuring the available carrier with the minimum frequency value in the third sub-band as a main carrier.

Optionally, the configuration unit is further configured to: when m carriers of main carrier types are contained in the third sub-band, setting the minimum frequency value of the third sub-band to be larger than the maximum frequency values of other sub-bands, and configuring the available carrier with the maximum frequency value in the third sub-band as a main carrier; configuring the first m-1 available carriers with the maximum frequency value except the available carrier with the maximum frequency value in the third sub-band as the carriers of the remaining m-1 main carrier types; setting the maximum frequency value of the third sub-band to be smaller than the maximum frequency values of other sub-bands, and configuring the available carrier with the minimum frequency value in the third sub-band as a main carrier; configuring the first m-1 available carriers with the minimum frequency value except the available carrier with the minimum frequency value in the third sub-band as the carriers of the remaining m-1 main carrier types; the main carrier is any one of the m main carrier types, and m is greater than 1.

Optionally, the configuration unit is further configured to: when the main carrier contains the synchronous signal, configuring the frequency value of the central frequency point of the frequency band occupied by the synchronous signal to be integral multiple of the grid width of the synchronous channel.

Optionally, the base station further includes: and the adjusting unit is used for adjusting the bandwidth of each sub-band according to the transmitted service load.

Optionally, the adjusting unit is configured to perform at least one of the following adjusting operations: adjusting the bandwidth of the second sub-band according to the service load of the large-scale machine type communication; adjusting the bandwidth of the third sub-band according to the service load of the low-delay high-reliability communication; and adjusting the bandwidth of the first sub-band according to at least one of the adjusted bandwidth of the second sub-band and the adjusted bandwidth of the third sub-band.

Optionally, the adjusting unit is configured to: when detecting that the capacity of the current configured carrier cannot meet the service load of the large-scale machine type communication, increasing the bandwidth of the second sub-band; and reducing the bandwidth of the second sub-band when the capacity of the carrier is still satisfied with the service load of transmitting the large-scale machine type communication after the reduction of the carrier in the second sub-band is detected.

Optionally, the adjusting unit is configured to: and increasing the number of carriers in the second sub-band, wherein the newly increased carriers are used for transmitting the service load of the large-scale machine type communication, and the newly increased carriers are adjacent to the configured carriers.

Optionally, the adjusting unit is configured to: reducing the number of carriers in the second sub-band, wherein the reduced carriers are the first n of the configured carriers with the largest frequency difference with the main carrier₁Number of carriers, n₁＝x₁-y₁，x₁For the number of configured carriers, y₁The minimum number of carriers to satisfy the traffic load of the large-scale machine type communication.

Optionally, the adjusting unit is configured to: when detecting that the capacity of the current configured carrier cannot meet the service load of the low-delay high-reliability communication, increasing the bandwidth of the third sub-band; and after the reduction of the carrier in the third sub-band is detected, reducing the bandwidth of the third sub-band when the capacity of the carrier still meets the service load of transmitting the low-delay high-reliability communication.

Optionally, the adjusting unit is configured to: and increasing the number of carriers in the third sub-band, wherein newly increased carriers are used for the service load of the low-delay high-reliability communication, and the newly increased carriers are adjacent to the configured carriers.

Optionally, the adjusting unit is configured to: reducing the number of carriers in the third sub-band, wherein the reduced carriers are the first m of the configured carriers with the largest frequency difference with the main carrier₁Number of carriers, m₁＝x₂-y₂，x₂For the number of configured carriers, y₂The minimum number of carriers for satisfying the service load of the low-delay and high-reliability communication is provided.

Optionally, the adjusting unit is configured to: when a first sub-band is configured in the system bandwidth, classifying unoccupied available carriers in the system bandwidth as the first sub-band.

Optionally, the configuration unit is further configured to: when three sub-bands are configured in the system bandwidth, the carrier wave containing the control channel in the first sub-band is configured in the preset bandwidth around the central frequency point of the system bandwidth.

An embodiment of the present invention further provides an air interface frame structure frame, including: and respectively communicating the sub-bands of at least two carrier parameters in the system bandwidth with the terminals corresponding to the carrier parameters through the frequency band positions of the sub-bands of the at least two carrier parameters.

Optionally, the sub-bands of the carrier parameter in the system bandwidth include at least two of the following: the system comprises a first sub-band used for transmitting mobile broadband enhancement, a second sub-band used for transmitting large-scale machine type communication and a third sub-band used for transmitting low-delay high-reliability communication.

Optionally, the system bandwidth includes the first sub-band, the second sub-band, and the third sub-band, where: the first sub-band is disposed between the second sub-band and the third sub-band.

Optionally, bandwidths of the first sub-band, the second sub-band, and the third sub-band are all adjustable.

Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:

and configuring the frequency band positions of the sub-bands of at least two carrier parameters in the system bandwidth, so that multiple types of services can be transmitted in the same system bandwidth.

Further, according to the transmitted service load, the bandwidth of the second sub-band and/or the bandwidth of the third sub-band are/is adjusted. When the first sub-band is included in the system bandwidth, the carrier resources left in the system bandwidth are allocated to the first sub-band, so that higher frequency band use efficiency can be achieved.

In addition, the carrier containing the control channel in the first sub-band is configured in the middle area of the system bandwidth, and because there is no intersection between the three sub-bands, the carrier used by the control channel in the first sub-band is not affected no matter how the second sub-band and the third sub-band are adjusted.

Drawings

Fig. 1 is a flowchart of a configuration method of a frame structure frame of an air interface in an embodiment of the present invention;

FIG. 2 is a schematic diagram of a system bandwidth structure in an embodiment of the present invention;

FIG. 3 is a schematic diagram of another system bandwidth configuration in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a base station in the embodiment of the present invention.

Detailed Description

In 5G, the 5G new air interface uses an Orthogonal Frequency Division Multiplexing (OFDM) waveform or a new waveform modified based on the OFDM waveform. For service requirements of three different scenarios, namely eMBB, massive MTC and URLLC, due to different requirements on transmission rate, different types of terminals and different moving speeds, the requirements on carrier parameters such as subcarrier spacing, symbol length and the like are also different.

For example, the main requirement of the eMBB service is data transmission in ultra-high-speed broadband, and the service transmission delay is also greatly reduced compared to LTE. Accordingly, if an OFDM waveform or the like is employed, a subcarrier slightly wider than 3GPP release 8LTE and a shorter symbol length are required.

The main requirement of URLLC service is the ultra-high reliability of data transmission (10)^-5Error transmission probability of/ms) and ultra-low end-to-end transmission delay (e.g., 1ms end-to-end transmission delay). Accordingly, URLLC requires a shorter symbol length and a wider subcarrier spacing than eMBB.

For the massive MTC service, the main requirements are to support the number of terminal connections with large capacity, the terminal design with low cost or even ultra-low cost, and the transmission technology with low power consumption, and the terminal is insensitive to the transmission delay. Accordingly, the massive MTC transmission requires a longer symbol length and a narrower subcarrier spacing than the eMBB, and a narrower terminal bandwidth (for example, only 1.4MHz bandwidth) is also designed for the massive MTC transmission to reduce the cost of the terminal and the power consumption during the transmission.

In the embodiment of the invention, when the frequency band positions of the sub-bands of at least two carrier parameters are configured in the system bandwidth, various types of services can be transmitted in the system bandwidth.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

An embodiment of the present invention provides a method for configuring a frame structure frame of an air interface, which is described in detail below with reference to fig. 1 through specific steps.

Step S101, configuring sub-bands of at least two carrier parameters in a system bandwidth.

In a specific implementation, the base station may communicate with the terminals corresponding to the at least two carrier parameters respectively through the frequency band positions of the sub-bands of the carrier parameters. The carrier parameters include: the method comprises the steps of supporting a first carrier parameter of eMBB, supporting a second carrier parameter of massiveMTC and supporting a third carrier parameter of URLLC. Each carrier parameter may include at least one of the following parameters: subcarrier spacing, symbol length, and cyclic prefix. The specific values of the parameters in each carrier parameter may be different, that is: the specific parameters in the first carrier parameters may be different from the specific parameters in the second carrier parameters and the third carrier parameters.

In the embodiment of the present invention, the subbands supporting the carrier parameters of three service types may be sequentially divided into a first subband, a second subband, and a third subband, where: the first sub-band is used for transmitting data of an eMBB service type, the second sub-band is used for transmitting data of a massive MTC service type, and the third sub-band is used for transmitting data of a URLLC service type.

In practical application, the base station may include, according to different service requirements, only any two of the first sub-band, the second sub-band, and the third sub-band configured in the system bandwidth. For example, the base station configures only a first sub-band and a second sub-band within the system bandwidth. As another example, the base station configures the three subbands simultaneously in the system bandwidth.

In the embodiment of the present invention, when three subbands are configured in the system bandwidth, that is, a first subband, a second subband, and a third subband are configured in the system bandwidth, the following relationships are satisfied between the three subbands: the first sub-band is configured between the second sub-band and the third sub-band.

In a specific implementation, guard bands may be configured between the first sub-band and the second sub-band and between the first sub-band and the third sub-band. For example, a first guard band is configured between the first sub-band and the second sub-band, and a second guard band is configured between the first sub-band and the third sub-band.

It is to be understood that when the base station configures two sub-bands within the system bandwidth, a guard band may also be configured between the two sub-bands. Whether to set the guard band may be set by itself according to an actual application scenario, which is not described herein.

When two kinds of subbands are configured in the system bandwidth, one of the two kinds of subbands is disposed on a high-band side of the system bandwidth, and the other kind of subband is disposed on a low-band side of the system bandwidth. When the types of the subbands configured in the system bandwidth are 3, the second subband may be set on the high-band side of the system bandwidth, and the third subband may be set on the low-band side of the system bandwidth; the second sub-band may be disposed on the low-band side of the system bandwidth, and the third sub-band may be disposed on the high-band side of the system bandwidth. Wherein, the high-frequency band side means: within the system bandwidth, the frequency band with the minimum frequency value larger than the maximum frequency values of other frequency bands; the low band side means: and within the system bandwidth, the maximum frequency value is smaller than the frequency value of the minimum frequency of other frequency bands.

Referring to fig. 2, a schematic diagram of frequency band division of a system bandwidth in an embodiment of the present invention is provided, a sub-band of three carrier parameters is configured in the system bandwidth, and a frequency value of each frequency band increases along a y-axis direction.

The first sub-band 201 is disposed between the second sub-band 202 and the third sub-band 203, a first guard band 204 is disposed between the first sub-band 201 and the second sub-band 202, and a second guard band 205 is disposed between the first sub-band 201 and the third sub-band 203. The second sub-band 202 is at the low frequency side of the system bandwidth, i.e. the maximum frequency value of the second sub-band 202 is smaller than the minimum frequency value of the first sub-band 201; the third sub-band 203 is on the high frequency side of the system bandwidth, i.e. the minimum frequency value of the third sub-band 203 is larger than the maximum frequency value of the first sub-band 201.

The bandwidth of the first guard band 204 and the bandwidth of the second guard band 205 may or may not be equal. In a specific implementation, the specific bandwidth of the first guard band 204 and the specific bandwidth of the second guard band 205 may be calculated according to actual requirements.

In practical applications, a guard band 206 may further exist outside the third sub-band 203, a guard band 207 may further exist outside the second sub-band 202, and the guard band 206 and the guard band 207 are guard bands set in a system bandwidth, so that interference between the system bandwidth and other system bandwidths may be avoided.

In particular implementations, when a second sub-band is provided within the system bandwidth, the second sub-band may include multiple carriers therein. Among the plurality of carriers included in the second subband, there may be one or more carriers of a primary carrier type, and the carrier of the primary carrier type may be a carrier including a synchronization signal, or any one of a carrier including a primary broadcast channel, a carrier including a secondary broadcast channel, a carrier including a paging signal, and the like.

When the second sub-band contains a carrier of a main carrier type, if the second sub-band is located at a high-frequency band side of the system bandwidth, that is, the minimum frequency value of the second sub-band is greater than the maximum frequency values of other sub-bands, the available carrier with the maximum frequency value in the second sub-band can be configured as the main carrier; accordingly, if the second sub-band is on the low-frequency side of the system bandwidth, that is, the maximum frequency value of the second sub-band is smaller than the minimum frequency values of the other sub-bands, the available carrier with the smallest frequency value in the second sub-band may be configured as the main carrier.

For example, referring to fig. 2, if a carrier containing a synchronization signal exists in the second sub-band 202, and the second sub-band is located at the low-band side of the system bandwidth, the available carrier 2021 with the smallest frequency value in the second sub-band 202 is configured as the main carrier.

When n (n > 1) carriers of the primary carrier type are included in the second sub-band, if the second sub-band is on the high-band side of the system bandwidth, the available carrier with the largest frequency value in the second sub-band may be configured as the primary carrier, the first n-1 available carriers with the largest frequency value except the available carrier with the largest frequency value in the second sub-band may be configured as carriers of the remaining n-1 primary carrier types, and the primary carrier may be any one of the carriers of the n primary carrier types.

Accordingly, if the second sub-band is on the low-band side of the system bandwidth, the available carrier with the smallest frequency value in the second sub-band may be configured as the primary carrier, the first n-1 available carriers with the smallest frequency value except the available carrier with the smallest frequency value in the second sub-band may be configured as the carriers of the remaining n-1 primary carrier types, and the primary carrier may be any one of the carriers of the n primary carrier types.

For example, the second sub-band includes carriers of 3 main carrier types, which are a carrier including a synchronization signal, a carrier including a main broadcast channel, and a carrier including a secondary broadcast channel, and is located on the low-band side of the system bandwidth. Available carrier f with minimum frequency value in second sub-band₀A carrier configured to contain a synchronization signal; setting the second intra-subband frequency value to be greater than f only₀Available carrier f₁A carrier configured to contain a primary broadcast channel; inner frequency dividing the second sub-bandValue of only greater than f₀And f₁Available carrier f₂A carrier configured to contain a secondary broadcast channel.

In particular implementations, similar to the second sub-band, when a third sub-band is provided within the system bandwidth, the third sub-band may include a plurality of carriers therein. Among the multiple carriers included, there may be one or more carriers of the primary carrier type.

When the third sub-band contains a carrier of a main carrier type, if the third sub-band is located at a high-frequency band side of the system bandwidth, that is, the minimum frequency value of the third sub-band is greater than the maximum frequency values of the other sub-bands, the available carrier with the maximum frequency value in the third sub-band can be configured as the main carrier; accordingly, if the third sub-band is on the low-frequency side of the system bandwidth, that is, the maximum frequency value of the third sub-band is smaller than the minimum frequency values of the other sub-bands, the available carrier with the smallest frequency value in the third sub-band may be configured as the main carrier.

Referring to fig. 2, if a carrier containing a synchronization signal exists in the third sub-band 203 and the third sub-band is located on the high-frequency band side of the system bandwidth, the available carrier 2031 with the largest frequency value in the third sub-band 203 is configured as the main carrier.

When m (m > 1) carriers of the main carrier type are included in the third sub-band, if the third sub-band is on the high-band side of the system bandwidth, the available carrier with the largest frequency value in the third sub-band may be configured as the main carrier, the first m-1 available carriers with the largest frequency value except the available carrier with the largest frequency value in the third sub-band may be configured as the carriers of the remaining m-1 main carrier types, and the main carrier may be any one of the carriers of the m main carrier types.

Accordingly, if the third sub-band is on the low-band side of the system bandwidth, the available carrier with the smallest frequency value in the third sub-band may be configured as the main carrier, the first m-1 available carriers with the smallest frequency value except the available carrier with the smallest frequency value in the third sub-band may be configured as the carriers of the remaining m-1 main carrier types, and the main carrier may be any one of the carriers of the m main carrier types.

For example, the third sub-band contains carriers of 2 main carrier types, depending onThe second is a carrier containing a synchronization signal and a carrier containing a main broadcast channel, and the third sub-band is on the high-band side of the system bandwidth. The available carrier f with the maximum frequency value in the third sub-band₀A carrier configured to contain a synchronization signal; setting the third intra-subband frequency value to be less than f only₀Available carrier f₁Configured to contain a carrier of the primary broadcast channel.

It should be noted that the available carrier with the largest frequency value in the embodiment of the present invention refers to an available carrier with the largest center frequency point of carriers. Correspondingly, the available carrier with the minimum frequency value in the embodiment of the present invention refers to the available carrier with the minimum center frequency point of the carrier.

In the embodiment of the present invention, for the second sub-band and the third sub-band, when the main carrier contains a synchronization signal, the frequency value of the center frequency point of the carrier configured for the synchronization signal is an integer multiple of the grid width of the synchronization channel. Further, if the main carrier contains a synchronization signal, in the main carrier, if the frequency band occupied by the synchronization signal is smaller than the total bandwidth of the main carrier, the central frequency point of the frequency band occupied by the synchronization signal is configured to be an integral multiple of the grid width of the synchronization channel.

In practical application, the grid width of the synchronization channel may be 100KHz, and the frequency value of the center frequency point of the frequency band occupied by the synchronization signal is an integral multiple of 100 KHz.

In a specific implementation, the base station may adjust the bandwidth of the second sub-band according to the traffic load of the masivemtc, may also adjust the bandwidth of the third sub-band according to the traffic load of the URLLC, and may also respectively adjust the bandwidth of the second sub-band and the bandwidth of the third sub-band according to the traffic load of the masivemtc and the traffic load of the URLLC at the same time.

When the base station configures the first sub-band in the system bandwidth, if at least one of the second sub-band and the third sub-band is adjusted, the first sub-band may be adjusted accordingly.

Next, the adjustment of the first subband, the second subband, and the third subband will be described.

The adjustment of the second subband will be explained first.

The base station may configure one or more carriers in the second subband for traffic transmission. At a certain time period t₀～t₁The service requirement of the massive MTC is relatively small, and the service requirement of the massive MTC can be met only by using one main carrier, that is, only one main carrier may be included in the second sub-band at this time, and the bandwidth of the second sub-band is the bandwidth of the main carrier.

At the next time period t₁～t₂The service requirement of the massive MTC is gradually increased, and one main carrier cannot meet the normal service requirement, so that the bandwidth of the second sub-band needs to be increased.

In the embodiment of the present invention, the base station may add an available carrier adjacent to the configured carrier into the second sub-band, and the newly added available carrier is used to transmit traffic of the massive MTC. The base station may configure the newly accessed user to the newly added available carrier through Radio Resource Control (RRC) connection signaling for service transmission. The base station can also configure the previously accessed users to the newly added available carriers for service transmission through RRC reconfiguration signaling. With the increasing of the massive MTC traffic load, the number of carriers added to the second sub-band may be increased.

At the next time period t₂～t₃And when the traffic load of the massive MTC starts to decrease, the base station may gradually decrease the number of carriers in the second sub-band, and move out the redundant carriers in the second sub-band to reduce the bandwidth of the second sub-band. And before the redundant carriers are removed from the second sub-band, distributing the data service on the carriers needing to be removed to other carriers normally carrying the data service.

In the embodiment of the invention, the reduced carrier wave in the second sub-band is the first n with the largest frequency difference with the main carrier wave₁Number of carriers, n₁＝x₁-y₁，x₁For the number of configured carriers, y₁The minimum number of carriers for meeting the massive MTC service load. When n is₁When the frequency difference between the carrier wave and the main carrier wave is 1, the carrier wave which is reduced is the carrier wave which has the largest frequency difference with the main carrier wave in the second sub-band; when n is₁When the number is equal to 2, the alloy is put into a container,the reduced carriers are the first 2 carriers with the largest frequency difference with the main carrier in the second sub-band, and so on.

That is, as the traffic demand of the massive MTC is continuously decreasing, when the base station detects that only y is currently configured₁When the service requirement of the massive MTC can be normally realized by a single carrier, the number of the currently configured carriers can be changed from x₁Is reduced to y₁。

Taking the schematic structure of the system bandwidth shown in fig. 2 as an example, when there is one carrier of the primary carrier type, the carrier of the primary carrier type is configured as a carrier 2021. At a time period t₀～t₁The service requirement of the massive MTC is small, and the service requirement of the massive MTC can be satisfied only by using the carrier 2021. At this time, only carrier 2021 may be included in the second subband.

At a time period t₁～t₂The traffic demand of the massive MTC increases, and at this time, the transmission of the massive MTC traffic cannot be supported by using only the carrier 2021. Accordingly, the base station may increase the bandwidth of the second sub-band. The base station may add carrier 2022 adjacent to carrier 2021 to the second sub-band, and traffic of a newly accessed user or traffic of an already accessed user may be transmitted on carrier 2022. When the capacity of the carrier already configured by the current base station cannot meet the traffic load of the massive MTC, an available carrier 2023 adjacent to the configured carrier 2022 is added to the second subband. And so on, as the service requirement of the massive MTC increases, the number of carriers in the second sub-band is increased to increase the bandwidth of the second sub-band.

The carriers included in the second sub-band are carriers 2021 to 2024 as the traffic load of the massive MTC increases, and at this time, the capacity of the carrier may already satisfy the traffic demand of the massive MTC.

At a time period t₂～t₃The traffic demand of the massive MTC is gradually reduced. The base station detects that the service requirement of the massive MTC can be met only by 2 carriers currently, so that the base station can gradually reduce the number of carriers in the second sub-band. The first 2 carriers with the largest frequency difference with the main carrier are carrier 2024 and carrier 2023, so the base station supports carrier 2024 firstThe user and data on

carriers

2021 and 2022 are transferred and carrier 2024 is removed from the second subband. The base station then transfers the users and data carried on carrier 2023 to carrier 2021 and carrier 2022, after which carrier 2023 is removed from the second sub-band.

That is, as the number of carriers in the second sub-band is transformed, the bandwidth of the second sub-band is also changed accordingly. The following describes the adjustment of the bandwidth of the third subband.

In a specific implementation, similar to the adjustment of the bandwidth of the second sub-band, at a certain time period t₀～t₁The service requirement of URLLC is smaller, and the service requirement of URLLC can be satisfied only by using one main carrier, that is, only one main carrier may be included in the third subband at this time. At the next time period t₁～t₂The service requirement of URLLC gradually increases, and one main carrier cannot meet the normal service requirement, so the bandwidth of the third sub-band needs to be increased.

In the embodiment of the present invention, the base station may add an available carrier adjacent to the configured carrier to the third sub-band, and the newly added available carrier is used to transmit the traffic of the URLLC. With the increasing of URLLC traffic load, the number of carriers in the third sub-band may increase.

At the next time period t₂～t₃And the traffic load of the URLLC starts to decrease, and at this time, the base station may gradually decrease the number of carriers in the third sub-band, and move out the redundant carriers in the third sub-band, so as to decrease the bandwidth of the third sub-band. Before the redundant carriers are moved out of the third sub-band, the data service on the carrier needing to be moved out is distributed to other carriers which normally bear the data service.

In the embodiment of the invention, the reduced carrier wave in the third sub-band is the top m with the largest frequency difference with the main carrier wave₁Number of carriers, m₁＝x₂-y₂，x₂For the number of configured carriers, y₂The minimum number of carriers to satisfy URLLC traffic load. When m is₁When the carrier frequency is 1, the carrier frequency difference with the main carrier frequency in the third sub-band is the largestWave; when m is₁When the frequency difference is 2, the reduced carriers are the first 2 carriers with the largest frequency difference with the main carrier in the third sub-band, and so on.

That is, as the traffic demand of URLLC continues to drop, when the base station detects that only y is currently configured₂When the service requirement of URLLC can be normally realized by using one carrier, the number of currently configured carriers can be changed from x₂Is reduced to y₂。

Taking the schematic structural diagram of the system bandwidth shown in fig. 2 as an example, when there is one carrier of the primary carrier type, the carrier of the primary carrier type is configured as a carrier 2031. At a time period t₀～t₁The service requirement of URLLC is small, and the service requirement of URLLC can be met only by using carrier 2031. At this time, only the carrier 2031 may be included in the third subband.

At a time period t₁～t₂The traffic demand of URLLC increases, and at this time, the transmission supporting URLLC traffic cannot be satisfied by using only the carrier 2031. Accordingly, the base station may increase the bandwidth of the third subband. The base station may add a carrier 2032 adjacent to the carrier 2031 to the third subband, and the carrier 2032 may transmit traffic of a newly accessed user or traffic of an already accessed user. When the capacity of the carriers already configured by the current base station (i.e., the carrier 2031 and the carrier 2032) cannot meet the traffic load of the URLLC, an available carrier adjacent to the configured carrier 2032 is added to the third subband. And by analogy, as the traffic demand of the URLLC increases, the number of carriers in the third subband is increased to increase the bandwidth of the third subband.

Setting the carriers included in the third sub-band as carriers 2031 to 2034 as the traffic load of the URLLC increases, at this time, the capacity of the carriers can already meet the traffic demand of the URLLC.

At a time period t₂～t₃The traffic demand of URLLC gradually decreases. The base station detects that the service requirement of the URLLC can be met only by 2 carriers currently, so the base station can gradually reduce the number of carriers in the third subband. The base station first transfers the user and data carried on the carrier 2034 to the carrier 2031 and the carrier 2032, and then transfers the carrier 2034 from the third subbandAnd (6) discharging. Then, the base station transfers the user and data carried on the carrier 2033 to the carrier 2031 and the carrier 2032, and then moves the carrier 2033 out of the third subband.

That is, as the number of carriers in the third sub-band is transformed, the bandwidth of the third sub-band is also changed accordingly.

In a specific implementation, when only the sub-bands corresponding to the two carrier parameters are configured in the system bandwidth, the sub-bands corresponding to the two carrier parameters are respectively configured on the high frequency band side and the low frequency band side of the system bandwidth. And respectively configuring the main carriers of the sub-bands corresponding to the two carrier parameters as a carrier corresponding to the highest frequency value at the high frequency band side and a carrier corresponding to the lowest frequency value at the low frequency band side. When the bandwidths of the two sub-bands are adjusted, the sub-carriers in the sub-bands are increased according to the rule that the distance between the sub-bands and the main carrier is from near to far, and the sub-carriers in the sub-bands are decreased according to the rule that the distance between the sub-bands and the main carrier is from far to near.

The description will be made with reference to fig. 2 with reference to fig. 3.

A second sub-band 202 and a third sub-band 203 are configured in the system bandwidth, the third sub-band 203 is configured on the high frequency band side of the system bandwidth, and the second sub-band 202 is configured on the low frequency band side of the system bandwidth. The primary carrier for the second subband 202 is carrier 2021 and the primary carrier for the third subband 203 is carrier 2031.

When increasing the bandwidth of the second sub-band 202, the available carrier 2022 adjacent to the carrier 2021 is increased first, and so on, each increased carrier is an available carrier adjacent to the currently configured carrier, and the direction of the increase of the carrier is the direction a in fig. 3.

Correspondingly, when the bandwidth of the second sub-band 202 is reduced, the carrier wave farthest from the carrier wave 2021 is reduced, for example, the carrier wave 2024 is removed from the second sub-band 202, and then the carrier wave 2023 is removed from the second sub-band 202, where the direction of the carrier wave reduction is the opposite direction to the direction of a in fig. 3.

Similarly, when the bandwidth of the third subband is adjusted, the carrier increases in the direction b in fig. 3, and decreases in the direction b in fig. 3.

Therefore, for the sub-bands arranged at two sides of the system frequency band, the main carriers are respectively configured to be the available carriers with the maximum and minimum frequency values of the central frequency point in the system bandwidth. When the bandwidth of the sub-bands on two sides of the system frequency band is adjusted, if the bandwidth of the sub-bands is increased, the order of adding the carriers in the sub-bands is increased from near to far according to the distance between the carriers and the main carrier; if the bandwidth of the sub-band is reduced, the order of reducing the carriers in the sub-band is reduced from near to far according to the distance between the carriers and the main carrier, so that the cross interference between the sub-bands can be reduced as much as possible.

In this embodiment of the present invention, when a first sub-band exists in the system bandwidth, the actual bandwidth of the first sub-band may be a remaining available bandwidth excluding other sub-bands, where the remaining available bandwidth may refer to a bandwidth excluding a set guard band, excluding a bandwidth occupied by other sub-bands, in the system bandwidth.

For example, a first sub-band and a second sub-band are configured in the system bandwidth. When the bandwidth of the second sub-band is increased, the bandwidth of the first sub-band is correspondingly decreased; as the bandwidth of the second sub-band becomes smaller, the bandwidth of the first sub-band may become correspondingly larger. Similarly, when a first sub-band and a third sub-band are configured in the system bandwidth, if the bandwidth of the third sub-band is increased, the bandwidth of the first sub-band is correspondingly decreased; if the bandwidth of the third sub-band becomes smaller, the bandwidth of the first sub-band becomes larger correspondingly.

That is, the bandwidth of the second sub-band and the bandwidth of the third sub-band may be adjusted in real time according to the traffic load, and therefore, the bandwidth of the first sub-band may also be adjusted in real time.

Therefore, according to the traffic load of transmission, when the system bandwidth includes the first sub-band, if at least one of the bandwidth of the second sub-band and the bandwidth of the third sub-band is adjusted, the carrier resources remaining in the system bandwidth after adjustment are allocated to the first sub-band, so that the use efficiency of the frequency band can be improved.

Since the bandwidth of the first sub-band is not fixed, the base station needs to indicate, according to a dynamic signaling (e.g., a downlink control signaling), the bandwidth resource actually scheduled and used by the eMBB terminal. The terminal needs to set corresponding receiving parameters (such as sampling rate, symbol length, subcarrier spacing, etc.) according to the carrier parameters of the eMBB to receive the whole system bandwidth, and then intercepts effective data in the actual scheduling bandwidth according to the system of the downlink control signaling.

In the embodiment of the present invention, to avoid the influence of the bandwidth change of the second sub-band and the bandwidth change of the third sub-band on the control channel of the first sub-band, when the sub-bands corresponding to the three carrier parameters are configured in the system bandwidth, the control channel of the eMBB may be configured in a bandwidth preset around the central frequency point of the system bandwidth.

In an embodiment of the present invention, the system bandwidth is 100MHz, the carrier of the control channel including the eMBB is configured in the 40MHz bandwidth around the central frequency point, i.e., [ f-20MHz to f +20MHz ], where f is the frequency value of the central frequency point of the system bandwidth. It is to be appreciated that the carriers of the control channel containing the eMBB may also be configured within a bandwidth of 20MHz around the center frequency point or other values. The bandwidth values preset around the central frequency point can be set according to actual needs.

When the first sub-band and either the second sub-band or the third sub-band are configured within the system bandwidth, the control channel of the eMBB may be configured within a preset frequency band of the first sub-band, the preset frequency band being related to a position of the first sub-band within the system bandwidth.

When the first sub-band is configured on the high-band side of the system bandwidth, the preset frequency band may be [ f [ ]_a～f_b]，f_aFrequency value of available carrier with maximum frequency value in system bandwidth, f_bIs a and f_aThe difference value of (a) is in the frequency value of the available carrier within the preset range; when the first sub-band is configured on the low-band side of the system bandwidth, the preset frequency band may be [ f [ ]_c～f_d]，f_cFrequency value of available carrier with maximum frequency value in system bandwidth, f_dIs a and f_cIs within a preset range of frequency values of available carriers. The preset range may be set according to actual requirements, and in an embodiment of the present invention, the preset range is set to 20 MHz.

In the embodiment of the present invention, the synchronization signal of the eMBB may be set at a central frequency point of the system bandwidth, or may be set at a frequency point negotiated with the terminal, for example, the frequency point negotiated with the terminal is an integer multiple of 100 KHz. The central frequency point of the carrier corresponding to the broadcast channel of the eMBB may be a central frequency point, or a frequency point determined by negotiation with the terminal.

Referring to fig. 4, an embodiment of the present invention further provides a base station, including: a configuration unit 401, wherein:

a configuration unit 401, configured to configure subbands of at least two carrier parameters in a system bandwidth, and communicate with terminals corresponding to the carrier parameters respectively through frequency band positions of the subbands of the at least two carrier parameters.

In a specific implementation, the configuration unit 401 may be configured to: and configuring a guard band between the sub-bands of the at least two carrier parameters.

In a specific implementation, the subbands of the carrier parameter configured by the configuration unit 401 in the system bandwidth may include at least two of the following: the system comprises a first sub-band used for transmitting mobile broadband enhancement, a second sub-band used for transmitting large-scale machine type communication and a third sub-band used for transmitting low-delay high-reliability communication.

In a specific implementation, the configuration unit 401 may be configured to: and when the sub-bands with three carrier parameters are configured in the system bandwidth, configuring the first sub-band between the second sub-band and the third sub-band.

In a specific implementation, the configuration unit 401 may be configured to: configuring a first guard band between the first sub-band and the second sub-band; configuring a second guard band between the first sub-band and the third sub-band.

In a specific implementation, at least one of the second subband and the third subband may include at least one carrier of a primary carrier type, where the carrier of the primary carrier type may include any one of: a carrier containing a synchronization signal, a carrier containing a primary broadcast channel, a carrier containing a secondary broadcast channel, or a carrier containing a paging signal.

In a specific implementation, the configuration unit 401 may further be configured to: when the second sub-band contains a carrier of a main carrier type, setting the minimum frequency value of the second sub-band to be larger than the maximum frequency values of other sub-bands, and configuring the available carrier with the maximum frequency value in the second sub-band as a main carrier; and setting the maximum frequency value of the second sub-band to be smaller than the minimum frequency values of other sub-bands, and configuring the available carrier with the minimum frequency value in the second sub-band as a main carrier.

In a specific implementation, the configuration unit 401 may further be configured to:

when the second sub-band contains n carriers of main carrier types, setting the minimum frequency value of the second sub-band to be larger than the maximum frequency values of other sub-bands, and configuring the available carrier with the maximum frequency value in the second sub-band as a main carrier; configuring the first n-1 available carriers with the maximum frequency value except the available carrier with the maximum frequency value in the second sub-band as the carriers of the remaining n-1 main carrier types;

setting the maximum frequency value of the second sub-band to be smaller than the maximum frequency values of other sub-bands, and configuring the available carrier with the minimum frequency value in the second sub-band as a main carrier; configuring the first n-1 available carriers with the minimum frequency value except the available carrier with the minimum frequency value in the second sub-band as the carriers of the remaining n-1 main carrier types; the primary carrier is any one of the n primary carrier types, n > 1.

In a specific implementation, the configuration unit 401 may further be configured to: when the third sub-band contains a carrier of a main carrier type, setting the minimum frequency value of the third sub-band to be larger than the maximum frequency values of other sub-bands, and configuring the available carrier with the maximum frequency value in the third sub-band as a main carrier; and setting the maximum frequency value of the third sub-band to be smaller than the minimum frequency values of other sub-bands, and configuring the available carrier with the minimum frequency value in the third sub-band as a main carrier.

In a specific implementation, the configuration unit 401 may further be configured to: when m carriers of main carrier types are contained in the third sub-band, setting the minimum frequency value of the third sub-band to be larger than the maximum frequency values of other sub-bands, and configuring the available carrier with the maximum frequency value in the third sub-band as a main carrier; configuring the first m-1 available carriers with the maximum frequency value except the available carrier with the maximum frequency value in the third sub-band as the carriers of the remaining m-1 main carrier types;

setting the maximum frequency value of the third sub-band to be smaller than the maximum frequency values of other sub-bands, and configuring the available carrier with the minimum frequency value in the third sub-band as a main carrier; configuring the first m-1 available carriers with the minimum frequency value except the available carrier with the minimum frequency value in the third sub-band as the carriers of the remaining m-1 main carrier types; the main carrier is any one of the m main carrier types, and m is greater than 1.

In a specific implementation, the configuration unit 401 may further be configured to: when the main carrier contains the synchronous signal, configuring the frequency value of the central frequency point of the frequency band occupied by the synchronous signal to be integral multiple of the grid width of the synchronous channel.

In a specific implementation, the base station 40 may further include: an adjusting unit 402, configured to adjust a bandwidth of each sub-band according to a traffic load of transmission.

In a specific implementation, the adjusting unit 402 may be configured to perform at least one of the following adjusting operations: adjusting the bandwidth of the second sub-band according to the service load of the large-scale machine type communication; adjusting the bandwidth of the third sub-band according to the service load of the low-delay high-reliability communication; and adjusting the bandwidth of the first sub-band according to at least one of the adjusted bandwidth of the second sub-band and the adjusted bandwidth of the third sub-band.

In a specific implementation, the adjusting unit 402 may be configured to: when detecting that the capacity of the current configured carrier cannot meet the service load of the large-scale machine type communication, increasing the bandwidth of the second sub-band; and reducing the bandwidth of the second sub-band when the capacity of the carrier is still satisfied with the service load of transmitting the large-scale machine type communication after the reduction of the carrier in the second sub-band is detected.

In a specific implementation, the adjusting unit 402 may be configured to: and increasing the number of carriers in the second sub-band, wherein the newly increased carriers are used for transmitting the service load of the large-scale machine type communication, and the newly increased carriers are adjacent to the configured carriers.

In a specific implementation, the adjusting unit 402 may be configured to: reducing the number of carriers in the second sub-band, wherein the reduced carriers are the first n of the configured carriers with the largest frequency difference with the main carrier₁Number of carriers, n₁＝x₁-y₁，x₁For the number of configured carriers, y₁The minimum number of carriers to satisfy the traffic load of the large-scale machine type communication.

In a specific implementation, the adjusting unit 402 may be configured to: when detecting that the capacity of the current configured carrier cannot meet the service load of the low-delay high-reliability communication, increasing the bandwidth of the third sub-band; and after the reduction of the carrier in the third sub-band is detected, reducing the bandwidth of the third sub-band when the capacity of the carrier still meets the service load of transmitting the low-delay high-reliability communication.

In a specific implementation, the adjusting unit 402 may be configured to: and increasing the number of carriers in the third sub-band, wherein newly increased carriers are used for the service load of the low-delay high-reliability communication, and the newly increased carriers are adjacent to the configured carriers.

In a specific implementation, the adjusting unit 402 may be configured to: reducing the number of carriers in the third sub-band, wherein the reduced carriers are the first m of the configured carriers with the largest frequency difference with the main carrier₁Number of carriers, m₁＝x₂-y₂，x₂For the number of configured carriers, y₂The minimum number of carriers for satisfying the service load of the low-delay and high-reliability communication is provided.

In a specific implementation, the adjusting unit 402 may be configured to: when a first sub-band is configured in the system bandwidth, classifying unoccupied available carriers in the system bandwidth as the first sub-band.

In a specific implementation, the configuration unit 401 may further be configured to: when three sub-bands are configured in the system bandwidth, the carrier wave containing the control channel in the first sub-band is configured in the 40MHz bandwidth around the central frequency point of the system bandwidth.

In a specific implementation, a guard band may be configured between the subbands of the at least two carrier parameters.

In a particular implementation, the subbands of the carrier parameter within the system bandwidth may include at least two of: the system comprises a first sub-band used for transmitting mobile broadband enhancement, a second sub-band used for transmitting large-scale machine type communication and a third sub-band used for transmitting low-delay high-reliability communication.

In a specific implementation, the system bandwidth may include the first sub-band, the second sub-band, and the third sub-band, where: the first sub-band is disposed between the second sub-band and the third sub-band.

In a specific implementation, a first guard band may be configured between the first sub-band and the second sub-band; a second guard band may be configured between the first sub-band and the third sub-band.

In a specific implementation, at least one of the second subband and the third subband includes at least one carrier of a primary carrier type, where the carrier of the primary carrier type includes any one of: a carrier containing a synchronization signal, a carrier containing a primary broadcast channel, a carrier containing a secondary broadcast channel, or a carrier containing a paging signal.

In a specific implementation, the bandwidths of the first sub-band, the second sub-band, and the third sub-band are adjustable.

In a specific implementation, the specific architecture and configuration method of the air interface frame structure frame may refer to the configuration method of the air interface frame structure frame provided in the foregoing embodiment of the present invention, which is not described herein again.

Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, and the storage medium may include: ROM, RAM, magnetic or optical disks, and the like.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A configuration method of an air interface frame structure frame is characterized by comprising the following steps:

sub-bands of at least two carrier parameters are configured in a system bandwidth, and the sub-bands of the at least two carrier parameters are respectively communicated with terminals corresponding to the carrier parameters through the frequency band positions of the sub-bands of the at least two carrier parameters; the subbands of the at least two carrier parameters include at least two of: the system comprises a first sub-band used for transmitting mobile broadband enhancement, a second sub-band used for transmitting large-scale machine type communication and a third sub-band used for transmitting low-delay high-reliability communication; at least one of the second sub-band and the third sub-band comprises at least one carrier of a primary carrier type, wherein the carrier of the primary carrier type comprises any one of the following: a carrier containing a synchronization signal, a carrier containing a primary broadcast channel, a carrier containing a secondary broadcast channel, or a carrier containing a paging signal;

when the second sub-band contains a carrier of a main carrier type, setting the minimum frequency value of the second sub-band to be larger than the maximum frequency values of other sub-bands, and configuring the available carrier with the maximum frequency value in the second sub-band as a main carrier; setting the maximum frequency value of the second sub-band to be smaller than the minimum frequency values of other sub-bands, and configuring the available carrier with the minimum frequency value in the second sub-band as a main carrier;

when a carrier of a primary carrier type is included in the third sub-band, the configuration method further includes: setting the minimum frequency value of the third sub-band to be larger than the maximum frequency values of other sub-bands, and configuring the available carrier with the maximum frequency value in the third sub-band as a main carrier; and setting the maximum frequency value of the third sub-band to be smaller than the minimum frequency values of other sub-bands, and configuring the available carrier with the minimum frequency value in the third sub-band as a main carrier.

2. The method for configuring an air interface frame structure frame according to claim 1, wherein a guard band is configured between subbands of the at least two carrier parameters.

3. The configuration method of an air interface frame structure frame according to claim 1,

when the subbands with three carrier parameters are configured in the system bandwidth, the first subband is configured between the second subband and the third subband.

4. The method according to claim 3, wherein a first guard band is configured between the first sub-band and the second sub-band; a second guard band is configured between the first sub-band and the third sub-band.

5. The configuration method of an air interface frame structure frame according to claim 1, wherein when the second sub-band includes carriers of n primary carrier types, the configuration method further includes: setting the minimum frequency value of the second sub-band to be larger than the maximum frequency values of other sub-bands, and configuring the available carrier with the maximum frequency value in the second sub-band as a main carrier; configuring the first n-1 available carriers with the maximum frequency value except the available carrier with the maximum frequency value in the second sub-band as the carriers of the remaining n-1 main carrier types;

6. The configuration method of an air interface frame structure frame according to claim 1, wherein when the third sub-band contains m carriers of the main carrier type, the configuration method further includes:

setting the minimum frequency value of the third sub-band to be larger than the maximum frequency values of other sub-bands, and configuring the available carrier with the maximum frequency value in the third sub-band as a main carrier; configuring the first m-1 available carriers with the maximum frequency value except the available carrier with the maximum frequency value in the third sub-band as the carriers of the remaining m-1 main carrier types;

7. The configuration method for an air interface frame structure frame according to any one of claims 1 to 6, further comprising: when the main carrier contains the synchronous signal, configuring the frequency value of the central frequency point of the frequency band occupied by the synchronous signal to be integral multiple of the grid width of the synchronous channel.

8. The method for configuring an air interface frame structure frame according to claim 1, further comprising: and adjusting the bandwidth of each sub-band according to the transmitted service load.

9. The configuration method of an air interface frame structure frame according to claim 8, wherein the adjusting the bandwidth of each sub-band according to the transmitted traffic load includes at least one of:

adjusting the bandwidth of the second sub-band according to the service load of the large-scale machine type communication;

adjusting the bandwidth of the third sub-band according to the service load of the low-delay high-reliability communication;

and adjusting the bandwidth of the first sub-band according to at least one of the adjusted bandwidth of the second sub-band and the adjusted bandwidth of the third sub-band.

10. The method for configuring an air interface frame structure frame according to claim 9, wherein the adjusting, according to a traffic load of large-scale machine type communication, a bandwidth of the second sub-band comprises:

when detecting that the capacity of the current configured carrier cannot meet the service load of the large-scale machine type communication, increasing the bandwidth of the second sub-band;

and reducing the bandwidth of the second sub-band when the capacity of the carrier is still satisfied with the service load of transmitting the large-scale machine type communication after the reduction of the carrier in the second sub-band is detected.

11. The configuration method of an air interface frame structure frame according to claim 10, wherein the increasing the bandwidth of the second sub-band includes:

and increasing the number of the carriers of the second sub-band, wherein the newly increased carriers are used for transmitting the services of the large-scale machine type communication, and the newly increased carriers are adjacent to the configured carriers.

12. The method for configuring an air interface frame structure frame according to claim 10, wherein the reducing the bandwidth of the second sub-band includes:

reducing the number of carriers in the second sub-band, wherein the reduced carriers are the first n of the configured carriers with the largest frequency difference with the main carrier₁Number of carriers, n₁＝x₁-y₁，x₁Is a stand forThe number of the configured carriers, y₁The minimum number of carriers to satisfy the traffic load of the large-scale machine type communication.

13. The configuration method of an air interface frame structure frame according to claim 9, wherein adjusting the bandwidth of the third sub-band according to the service load of the low-latency high-reliability communication includes:

when detecting that the capacity of the current configured carrier cannot meet the service load of the low-delay high-reliability communication, increasing the bandwidth of the third sub-band;

and after the reduction of the carrier in the third sub-band is detected, reducing the bandwidth of the third sub-band when the capacity of the carrier still meets the service load of transmitting the low-delay high-reliability communication.

14. The method for configuring an air interface frame structure frame according to claim 13, wherein the increasing the bandwidth of the third subband includes:

and increasing the number of carriers in the third sub-band, wherein newly increased carriers are used for the service load of the low-delay high-reliability communication, and the newly increased carriers are adjacent to the configured carriers.

15. The method for configuring an air interface frame structure frame according to claim 13, wherein the reducing the bandwidth of the third sub-band includes:

reducing the number of carriers in the third sub-band, wherein the reduced carriers are the first m of the configured carriers with the largest frequency difference with the main carrier₁Number of carriers, m₁＝x₂-y₂，x₂For the number of configured carriers, y₂The minimum number of carriers for satisfying the service load of the low-delay and high-reliability communication is provided.

16. The method for configuring an air interface frame structure frame according to claim 9, wherein the adjusting the bandwidth of the first sub-band includes: when a first sub-band is configured in the system bandwidth, classifying unoccupied available carriers in the system bandwidth as the first sub-band.

17. The method for configuring an air interface frame structure frame according to claim 16, further comprising: when three sub-bands are configured in the system bandwidth, the carrier wave containing the control channel in the first sub-band is configured in the preset bandwidth around the central frequency point of the system bandwidth.

18. A base station, comprising:

the system comprises a configuration unit, a receiving unit and a processing unit, wherein the configuration unit is used for configuring sub-bands of at least two carrier parameters in a system bandwidth and communicating with terminals corresponding to the carrier parameters respectively through the frequency band positions of the sub-bands of the at least two carrier parameters; the subbands of the at least two carrier parameters include at least two of: the system comprises a first sub-band used for transmitting mobile broadband enhancement, a second sub-band used for transmitting large-scale machine type communication and a third sub-band used for transmitting low-delay high-reliability communication; at least one of the second sub-band and the third sub-band comprises at least one carrier of a primary carrier type, wherein the carrier of the primary carrier type comprises any one of the following: a carrier containing a synchronization signal, a carrier containing a primary broadcast channel, a carrier containing a secondary broadcast channel, or a carrier containing a paging signal;

the configuration unit is further configured to, when the second subband includes a carrier of a primary carrier type, set a minimum frequency value of the second subband to be greater than maximum frequency values of other subbands, and configure an available carrier with a maximum frequency value in the second subband as a primary carrier; setting the maximum frequency value of the second sub-band to be smaller than the minimum frequency values of other sub-bands, and configuring the available carrier with the minimum frequency value in the second sub-band as a main carrier;

the configuration unit is further configured to, when a carrier of a primary carrier type is included in the third subband, further include: setting the minimum frequency value of the third sub-band to be larger than the maximum frequency values of other sub-bands, and configuring the available carrier with the maximum frequency value in the third sub-band as a main carrier; and setting the maximum frequency value of the third sub-band to be smaller than the minimum frequency values of other sub-bands, and configuring the available carrier with the minimum frequency value in the third sub-band as a main carrier.

19. The base station of claim 18, wherein the configuration unit is configured to: and configuring a guard band between the sub-bands of the at least two carrier parameters.

20. The base station of claim 18, wherein the configuration unit is configured to:

21. The base station of claim 20, wherein the configuration unit is configured to: configuring a first guard band between the first sub-band and the second sub-band; configuring a second guard band between the first sub-band and the third sub-band.

22. The base station of claim 18, wherein the configuration unit is further configured to:

23. The base station of claim 18, wherein the configuration unit is further configured to:

when m carriers of main carrier types are contained in the third sub-band, setting the minimum frequency value of the third sub-band to be larger than the maximum frequency values of other sub-bands, and configuring the available carrier with the maximum frequency value in the third sub-band as a main carrier; configuring the first m-1 available carriers with the maximum frequency value except the available carrier with the maximum frequency value in the third sub-band as the carriers of the remaining m-1 main carrier types;

24. The base station of any of claims 18 to 23, wherein the configuration unit is further configured to: when the main carrier contains the synchronous signal, configuring the frequency value of the central frequency point of the frequency band occupied by the synchronous signal to be integral multiple of the grid width of the synchronous channel.

25. The base station of claim 18, further comprising: and the adjusting unit is used for adjusting the bandwidth of each sub-band according to the transmitted service load.

26. The base station of claim 25, wherein the adjusting unit is configured to perform at least one of the following adjusting operations:

27. The base station of claim 26, wherein the adjustment unit is configured to: when detecting that the capacity of the current configured carrier cannot meet the service load of the large-scale machine type communication, increasing the bandwidth of the second sub-band; and reducing the bandwidth of the second sub-band when the capacity of the carrier is still satisfied with the service load of transmitting the large-scale machine type communication after the reduction of the carrier in the second sub-band is detected.

28. The base station of claim 27, wherein the adjustment unit is configured to: and increasing the number of carriers in the second sub-band, wherein the newly increased carriers are used for transmitting the service load of the large-scale machine type communication, and the newly increased carriers are adjacent to the configured carriers.

29. The base station of claim 27, wherein the adjustment unit is configured to: reducing the number of carriers in the second sub-band, wherein the reduced carriers are the first n of the configured carriers with the largest frequency difference with the main carrier₁Number of carriers, n₁＝x₁-y₁，x₁For the number of configured carriers, y₁The minimum number of carriers to satisfy the traffic load of the large-scale machine type communication.

30. The base station of claim 26, wherein the adjustment unit is configured to: when detecting that the capacity of the current configured carrier cannot meet the service load of the low-delay high-reliability communication, increasing the bandwidth of the third sub-band; and after the reduction of the carrier in the third sub-band is detected, reducing the bandwidth of the third sub-band when the capacity of the carrier still meets the service load of transmitting the low-delay high-reliability communication.

31. The base station of claim 30, wherein the adjustment unit is configured to: and increasing the number of carriers in the third sub-band, wherein newly increased carriers are used for the service load of the low-delay high-reliability communication, and the newly increased carriers are adjacent to the configured carriers.

32. The base station of claim 30, wherein the adjustment unit is configured to: reducing the number of carriers in the third sub-band, wherein the reduced carriers are the first m of the configured carriers with the largest frequency difference with the main carrier₁Number of carriers, m₁＝x₂-y₂，x₂For the number of configured carriers, y₂The minimum number of carriers for satisfying the service load of the low-delay and high-reliability communication is provided.

33. The base station of claim 26, wherein the adjustment unit is configured to: when a first sub-band is configured in the system bandwidth, classifying unoccupied available carriers in the system bandwidth as the first sub-band.

34. The base station of claim 33, wherein the configuration unit is further configured to: when three sub-bands are configured in the system bandwidth, the carrier wave containing the control channel in the first sub-band is configured in the preset bandwidth around the central frequency point of the system bandwidth.