WO2020223886A1 - Communication method and system - Google Patents

Abstract

Provided are a communication method and system, wherein same are applied to a private network, the main service of which is image and video uplink transmission. The method comprises: a base station selecting a combined frame structure from a pre-set radio frame structure set, determining that the combined frame structure is a radio frame structure, and performing information transmission with a user equipment (UE) according to a sub-frame configuration of the combined frame structure, wherein the pre-set radio frame structure set is composed of a pairwise combination of a pre-set first frame structure and a pre-set second frame structure, and the pairwise combination includes a combination of the first frame structure and the second frame structure themselves. The radio frame structure provided in the present invention can maximize an uplink transmission flow according to a usage scenario; in addition, a frame structure configuration solution can freely combine the same or different frame structures to form a flexible uplink and downlink resource ratio, which is suitable for different service requirements.

Description

Communication method and system Technical field

The present invention relates to the technical field of wireless broadband communication, in particular to a communication method and system.

Background technique

With the development of communication technology, communication networks are widely used in all walks of life. Unlike public mobile communication networks, some wireless private networks are usually used in specific business scenarios, such as emergency processing on-site video return and law enforcement records. Wait. In these scenarios, a large amount of data needs to be transmitted from User Equipment (UE) to the base station. Currently, the Time Division Long Term Evolution (TD-LTE) system is common.

In the existing TD-LTE system specifications, 7 types of uplink and downlink configurations are designed. Since the main service types in the public mobile communication network are more downlink traffic and less uplink traffic, the radio frame structure of the existing TD-LTE system Most of the uplink and downlink configurations have large downlink resources. However, for a private network dominated by upstream video transmission services, downstream resources will be wasted and upstream resources will be insufficient, which will limit upstream transmission traffic. At the same time, in order to be compatible with the 3G Time-Division-Synchronous Code Division Multiple Access (TD-SCDMA) system, the existing TD-LTE system frame structure reserves special subframes, which are difficult to use for Uplink data transmission causes a waste of resources. On the other hand, the existing TD-LTE system uses the same uplink and downlink configuration in each radio frame period, and the uplink and downlink ratio is the same as a radio frame. This will cause the uplink and downlink configuration to be not flexible enough, and it will be used in some business scenarios. May cause waste of resources or resource constraints.

Summary of the invention

In view of this, the present invention provides a communication method and system to solve the problem that the radio frame structure in the existing TD-LTE system is likely to cause waste of downlink resources and limited uplink resources during the uplink and downlink configuration process.

In order to achieve the above-mentioned purpose, the proposed scheme is as follows:

The first aspect of the embodiments of the present invention provides a communication method, including:

The base station selects a combined frame structure from a set of preset radio frame structures, determines that the combined frame structure is a wireless frame structure, and performs information transmission with the user equipment UE according to the subframe configuration of the combined frame structure;

Wherein, the preset radio frame structure set is composed of a combination of a preset first frame structure and a second frame structure, and the pairwise combination includes a combination of the first frame structure and the second frame structure itself .

Optionally, the communication method further includes:

Setting, by the base station, first bit information and second bit information of downlink signaling based on the combined frame structure;

The downlink signaling is sent to the UE, so that the UE determines the structure of the radio frame based on the downlink signaling.

Optionally, the setting of the first bit information and the second bit information of the downlink signaling by the base station based on the combined frame structure includes:

Setting the first bit information by the base station to instruct the subframe configuration of the combined frame structure to select two identical first frame structures or second frame structures;

The base station sets the second bit information to instruct the subframe configuration of the combined frame structure to select any one of the first frame structure or the second frame structure.

Optionally, the setting of the first bit information and the second bit information of the downlink signaling by the base station based on the combined frame structure includes:

The base station sets the first bit information to instruct the subframe configuration of the combined frame structure to select two different frame structures;

The base station sets the second bit information to indicate that the subframe configuration of the combined frame structure selects the first frame structure or the second frame structure as the first radio frame structure.

Optionally, the preset first frame structure includes:

The length of the first frame structure includes 10 subframes, and the 10 subframes are arranged in order. The first subframe and the fifth subframe are the downlink subframes transmitted by the base station to the UE, and the remaining A subframe as an uplink subframe transmitted by the UE to the base station;

The preset second frame structure includes:

The length of the second frame structure includes 10 subframes, and the 10 subframes are arranged in order, wherein the first, second, sixth, and seventh subframes are used as the base station to transmit to the UE The remaining subframes are used as uplink subframes transmitted by the UE to the base station.

Optionally, the first frame structure and the second frame structure further include:

A guard interval is included between each of the downlink subframes and the subsequent adjacent uplink subframes, and the guard interval has a length of m orthogonal frequency division multiplexing technology OFDM symbols;

Where m=A+B, A is the number of OFDM symbols in the downlink subframe occupied by the guard interval, and B is the number of OFDM symbols in the uplink subframe occupied by the guard interval;

The m also satisfies (m*t-T)/2≥D/C, where t is the length of the OFDM symbol, T is the power amplifier switching time, D is the cell coverage radius, and C is the speed of light.

A second aspect of the embodiments of the present invention provides a communication system, including:

The base station is configured to select a combined frame structure from a set of preset radio frame structures, determine that the combined frame structure is a radio frame structure, and perform information transmission with the user terminal UE according to the subframe configuration of the combined frame structure. The preset wireless frame structure set is composed of a combination of a preset first frame structure and a second frame structure, and the pairwise combination includes a combination of the first frame structure and the second frame structure itself.

Optionally, the base station is further configured to set first bit information and second bit information of downlink signaling based on the combined frame structure, and send the downlink signaling to the UE, so that the UE is based on the The downlink signaling determines the structure of the radio frame.

Optionally, the base station is configured to set the first bit information to indicate the subframe configuration of the combined frame structure, select two identical first frame structures or the second frame structure, and set the first frame structure. The two-bit information indicates that the subframe configuration of the combined frame structure selects any one of the first frame structure or the second frame structure.

Optionally, the base station is configured to set the first bit information to indicate the subframe configuration of the combined frame structure to select two different frame structures, and set the second bit information to indicate the subframe configuration of the combined frame structure. The frame configuration selects the first frame structure or the second frame structure as the first radio frame structure.

Based on the above technical solutions, the communication method and system disclosed in the embodiments of the present invention are used in a private network whose main business is image and video uplink transmission. The base station selects the combined frame structure from the preset wireless frame structure set and determines the The combined frame structure is a radio frame structure, and information transmission is performed with the user terminal UE according to the subframe configuration of the combined frame structure. Wherein, the preset radio frame structure set is composed of a combination of a preset first frame structure and a second frame structure, and the pairwise combination includes a combination of the first frame structure and the second frame structure itself . The wireless frame structure of the present invention can maximize the uplink transmission flow according to the usage scenario, and support high-rate services such as image and video. The radio frame structure configuration scheme can freely combine the same or different frame structures to form a flexible uplink and downlink resource ratio, which is suitable for different service requirements. At the same time, the special subframe configuration existing in the prior technical solution is cancelled, which can save resource overhead.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only It is an embodiment of the present application. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative work.

FIG. 1 is a flowchart of a communication method provided by an embodiment of the present invention;

2 is a schematic diagram of the configuration of a first frame structure provided by an embodiment of the present invention;

3 is a schematic diagram of the configuration of a second frame structure provided by an embodiment of the present invention;

4 is a schematic diagram of subframe configuration of the first radio frame structure provided by an embodiment of the present invention;

FIG. 5 is a schematic diagram of a subframe configuration of a second radio frame structure provided by an embodiment of the present invention;

6 is a schematic diagram of a subframe configuration of a third radio frame structure provided by an embodiment of the present invention;

FIG. 7 is a schematic diagram of a subframe configuration of a fourth radio frame structure provided by an embodiment of the present invention;

FIG. 8 is a flowchart of a communication method provided by an embodiment of the present invention;

FIG. 9 is a flowchart of a communication method provided by an embodiment of the present invention;

Fig. 10 is a structural block diagram of a communication system provided by an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

In this application, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes no Other elements clearly listed, or also include elements inherent to this process, method, article or equipment. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article or equipment that includes the element.

It can be seen from the background technology that the current radio frame structure of the existing Time Division Long Term Evolution (TD-LTE) system has mostly uplink and downlink configurations with more downlink resources, but it is mainly for uplink video transmission services. The private network will cause a waste of downlink resources and insufficient uplink resources, which will limit the uplink transmission traffic. Therefore, the communication method disclosed in the embodiment of the present invention can maximize the uplink transmission traffic according to the usage scenario, and support high-rate services such as image and video. At the same time, the wireless frame structure configuration scheme can freely combine the same or different frame structures to form a flexible uplink and downlink resource ratio, which is suitable for different service demand scenarios. It is explained in detail through the following examples.

Referring to FIG. 1, a flowchart of a communication method provided by an embodiment of the present invention is shown, which may include the following steps:

Step S101: The base station selects a combined frame structure from a set of preset radio frame structures, determines that the combined frame structure is a radio frame structure, and performs information transmission with the UE according to the subframe configuration of the combined frame structure.

In the process of specifically implementing step S101, the radio frame structure set is composed of a preset first frame structure and a second frame structure in pairs, wherein the pairwise combination includes the first frame structure and the second frame structure. The second frame structure itself is a combination. The radio frame structure set includes four radio frame structure combinations, namely: the first frame structure and the second frame structure, the second frame structure and the first frame structure, and the first frame Structure and the first frame structure, the second frame structure and the second frame structure. The base station performs information transmission with the UE on the corresponding subframe based on the subframe configuration of the combined frame structure, wherein the uplink subframe is used for the UE to transmit information to the base station, and the downlink subframe is used for The base station transmits information to the UE.

Step S102: The UE receives the radio frame and the downlink signaling sent by the base station, and determines the structure of the radio frame based on the downlink signaling.

The downlink signaling involved in the process of specifically implementing step S102 is configured based on the combined frame structure via the base station. Specifically:

The base station sets the first bit information and the second bit information of the downlink signaling based on the combined frame structure, and then sends the downlink signaling to the UE, and the UE determines the structure of the radio frame based on the downlink signaling.

In the embodiment of the present invention, the base station uses the 2 bits of information in the System Information Block Type 1 (SIB1) message to notify the UE of the structure configuration of the radio frame, and the first bit of information is the high bit. , The second bit information is a low bit. Wherein, in the 2 bits of information, the high bit is the leftmost bit of information in the 2 bits of information, and the low bit is the rightmost bit of information in the 2 bits of information.

It should be noted that the SIB1 message in the TD-LTE system mainly carries cell access and cell selection related information, the TD-LTE system subframe configuration, and other SIB block scheduling and window information.

In the process of specifically implementing step S102, the UE determines the structure of the radio frame by identifying that the first bit information and the second bit information are 0 or 1.

Referring to FIG. 2, there is shown a schematic configuration diagram of a first frame structure provided by an embodiment of the present invention, including: a first frame structure 201;

The configuration of the first frame structure 201 includes: 10 subframes are included, the 10 subframes are arranged in order, and the first subframe and the fifth subframe are used as the downlink transmission from the base station to the UE. Subframes, and the remaining subframes are used as uplink subframes transmitted by the UE to the base station. E.g:

The length of the first frame structure 201 is 10ms, including 10 subframes with a length of 1ms. The 10 subframes are numbered i=0 to i=9 and arranged in order, wherein the subframe i=0 and the subframe Frame i=5 is used as downlink subframes transmitted by the base station to the UE, and the remaining subframes are used as uplink subframes transmitted by the UE to the base station. Wherein, D in FIG. 2 represents a downlink subframe, which is used by the base station to transmit information to the UE. U represents an uplink subframe, which is used by the UE to transmit information to the base station. GP stands for guard interval.

Referring to FIG. 3, it shows a schematic configuration diagram of a second frame structure provided by an embodiment of the present invention, including: a second frame structure 301;

The configuration of the second frame structure 301 includes: 10 subframes are included, and the 10 subframes are arranged in order, where the first, second, sixth, and seventh subframes are used as the base station direction. The downlink subframes transmitted by the UE, and the remaining subframes are used as uplink subframes transmitted by the UE to the base station. E.g:

The length of the second frame structure 301 is 10ms, which includes 10 subframes with a length of 1ms, and the 10 subframes are numbered i=0 to i=9 arranged in order, wherein the subframes i=0, i =1, i=5 and i=6 are used as downlink subframes transmitted by the base station to the UE, and the remaining subframes are used as uplink subframes transmitted by the UE to the base station. Wherein, D in FIG. 3 represents a downlink subframe, which is used by the base station to transmit information to the UE. U represents an uplink subframe, which is used by the UE to transmit information to the base station. GP stands for guard interval.

It should be noted that, in the first frame structure 201 and the second frame structure 301, each of the downlink subframes and the subsequent adjacent uplink subframes includes a guard interval (Guard Period). , GP). The length of the GP is m Orthogonal Frequency Division Multiplexing (OFDM) symbols, where m=A+B, A is the number of OFDM symbols occupied by the GP in the downlink subframe, B Is the number of OFDM symbols occupied by the GP in the uplink subframe. Preferably, the m also satisfies (m*t-T)/2≥D/C, where t is the length of the OFDM symbol, T is the power amplifier switching time, D is the cell coverage radius, and C is the speed of light.

It should be noted that the specific structures of the first frame structure 201 and the second frame structure 301 include, but are not limited to, the structures shown in FIGS. 2 and 3 above. In the second frame structure 301, the number and positions of downlink subframes and uplink subframes are set by the technicians according to actual conditions, and are not illustrated one by one in the embodiment of the present invention.

In order to better explain the structure of the wireless frame involved in Figure 1 above, in conjunction with the content shown in Figure 2 and Figure 3, the wireless frame structure shown in Figure 4, Figure 5, Figure 6 and Figure 7 for example.

Referring to FIG. 4, it shows a schematic diagram of a subframe configuration of the first radio frame structure provided by an embodiment of the present invention, including:

The subframe configuration of the first radio frame structure consists of two first frame structures 201, and the base station performs information transmission with the UE according to the corresponding subframe. Wherein, D in FIG. 4 represents a downlink subframe, which is used by the base station to transmit information to the UE. U represents an uplink subframe, which is used by the UE to transmit information to the base station. GP stands for guard interval.

Referring to FIG. 5, it shows a schematic diagram of a subframe configuration of a second radio frame structure provided by an embodiment of the present invention, including:

The subframe configuration of the second radio frame structure is composed of two second frame structures 301, and the base station performs information transmission with the UE according to the corresponding subframe. Wherein, D in FIG. 5 represents a downlink subframe, which is used by the base station to transmit information to the UE. U represents an uplink subframe, which is used by the UE to transmit information to the base station. GP stands for guard interval.

It should be noted that the structure of the first type of radio frame and the subframe configuration of the structure of the second type of radio frame are both composed of two identical radio frames, which are relatively simple. Usually when selecting the radio frame structure configuration The subframe configuration of the first type of radio frame structure will be selected, and the subframe configuration of the second type of radio frame structure will be used as a supplement, so as to provide higher configuration flexibility.

In the embodiment of the present invention, the structure of the wireless frame is freely combined by two preset frame structures, which can maximize the uplink transmission traffic according to the usage scenario, and support high-rate services such as image and video. At the same time, the wireless frame structure configuration scheme can freely combine the same or different frame structures to form a flexible uplink and downlink resource ratio, which is suitable for different service demand scenarios. At the same time, the special subframe configuration existing in the prior technical solution is cancelled, which can save resource overhead.

Referring to FIG. 6, it shows a schematic diagram of a subframe configuration of a third radio frame structure provided by an embodiment of the present invention, including:

The subframe configuration of the third radio frame structure is from the first frame structure 201 to the first radio frame structure, and the second frame structure 301 to the second radio frame structure. The base station is based on the corresponding subframe Information transmission with the UE. Wherein, D in FIG. 6 represents a downlink subframe, which is used by the base station to transmit information to the UE. U represents an uplink subframe, which is used by the UE to transmit information to the base station. GP stands for guard interval.

Referring to FIG. 7, it shows a schematic diagram of a subframe configuration of a fourth radio frame structure provided by an embodiment of the present invention, including:

The subframe configuration of the fourth radio frame structure is changed from the second frame structure 301 to the first radio frame structure, the first frame structure 201 to the second radio frame structure, and the base station according to the corresponding subframe Information transmission with the UE. Wherein, D in FIG. 7 represents a downlink subframe, which is used by the base station to transmit information to the UE. U represents an uplink subframe, which is used by the UE to transmit information to the base station. GP stands for guard interval.

It should be noted that the structure of the third radio frame and the subframe configuration of the structure of the fourth radio frame have the same uplink and downlink subframe ratio, so there is no difference in usage scenarios.

In the embodiment of the present invention, four different radio frame structures can be configured from two radio frame structures. When the uplink and downlink traffic ratios are different, different combinations can provide different uplink and downlink subframe ratios to enable Match with the business volume ratio to achieve higher transmission efficiency.

Referring to FIG. 8, a flow chart of a communication method provided by an embodiment of the present invention is shown, which may include the following steps:

Step S801: The base station selects a combined frame structure from a set of preset radio frame structures, determines that the combined frame structure is a radio frame structure, and performs information transmission with the UE according to the subframe configuration of the combined frame structure.

In the process of specifically implementing step S801, the composition of the radio frame structure set and the specific process of information transmission between the base station and the UE, refer to the content corresponding to step S101 disclosed in FIG. 1 of the above embodiment of the present invention.

Step S802: The base station sets the first bit information to indicate that the subframe configuration of the combined frame structure selects two identical frame structures.

In the process of implementing step S802, optionally, when the base station sets the first bit information to 0, it instructs the subframe configuration of the combined frame structure to select two identical first frame structures or The second frame structure.

Optionally, when the base station sets the first bit information to 1, instructs the subframe configuration of the combined frame structure to select two identical first frame structures or second frame structures.

It should be noted that the specific setting of the first bit information may be negotiated and decided by the base station and the UE.

Step S803: The base station sets the second bit information to indicate that the subframe configuration of the combined frame structure selects any one of the first frame structure 201 or the second frame structure 301.

In the process of specifically implementing step S803, optionally, when the base station sets the second bit information to 0, the subframe configuration of the combined frame structure selects the first type of radio frame structure, and the When the two-bit information is 1, the subframe configuration of the combined frame structure selects the second radio frame structure.

Optionally, when the base station sets the second bit information to 1, the subframe configuration of the combined frame structure selects the first radio frame structure, and when the second bit information is 0, the The subframe configuration of the combined frame structure selects the second radio frame structure.

It should be noted that the specific setting of the second bit information is determined by negotiation between the base station and the UE.

Referring to FIG. 9, it shows a communication method provided by an embodiment of the present invention, which may include the following steps:

Step S901: The base station selects a combined frame structure from a set of preset radio frame structures, determines that the combined frame structure is a radio frame structure, and performs information transmission with the UE according to the subframe configuration of the combined frame structure.

In the process of specifically implementing step S901, the composition of the radio frame structure set and the specific process of information transmission between the base station and the UE, refer to the content corresponding to step S101 disclosed in FIG. 1 of the foregoing embodiment of the present invention.

Step S902: The base station sets the first bit information to indicate the subframe configuration of the combined frame structure to select two different frame structures.

In the process of specifically implementing step S902, optionally, when the base station sets the first bit information to 0, the subframe configuration of the combined frame structure selects two different frame structures.

Optionally, when the base station sets the first bit information to 1, the subframe configuration of the combined frame structure selects two different frame structures.

It should be noted that the specific setting of the first bit information is determined through negotiation between the base station and the UE.

Step S903: The base station sets the second bit information to indicate that the subframe configuration of the combined frame structure selects the first frame structure 201 or the second frame structure 301 as the first radio frame structure.

In the process of specifically implementing step S903, optionally, when the base station sets the second bit information to 0, the subframe configuration of the combined frame structure selects the third radio frame structure, and the first When the two-bit information is 1, the subframe configuration of the combined frame structure selects the fourth radio frame structure.

Optionally, when the base station sets the second bit information to 1, the subframe configuration of the combined frame structure selects the third wireless frame structure, and when the second bit information is 0, the The subframe configuration of the combined frame structure selects the fourth radio frame structure.

It should be noted that the specific setting of the second bit information is determined by negotiation between the base station and the UE.

In the embodiment of the present invention, the structure of the wireless frame is freely combined by two preset frame structures, which can maximize the uplink transmission traffic according to the usage scenario, and support high-rate services such as image and video. At the same time, the wireless frame structure configuration scheme can freely combine the same or different frame structures to form a flexible uplink and downlink resource ratio, which is suitable for different service demand scenarios.

Corresponding to the communication method provided in the foregoing embodiment of the present invention, referring to FIG. 10, it is shown that an embodiment of the present invention also provides a communication system. In the embodiment of the present invention, the radio frame generation system may include: a base station 1001 and a user terminal UE1002.

among them:

The base station 1001 is configured to select a combined frame structure from a set of preset radio frame structures, determine that the combined frame structure is a radio frame structure, and perform information transmission with the user terminal UE according to the subframe configuration of the combined frame structure. Wherein, the preset radio frame structure set is composed of a combination of a preset first frame structure and a second frame structure, and the pairwise combination includes a combination of the first frame structure and the second frame structure itself ；

The UE 1002 is configured to receive the subframe configuration of the combined frame structure sent by the base station 1001.

Preferably, referring to Fig. 10, the base station 1001 in the embodiment of the present invention is further configured to set first bit information and second bit information of downlink signaling based on the combined frame structure, and send the downlink signaling to The UE enables the UE to determine the structure of the radio frame based on the downlink signaling, where the first bit information is a high bit, and the second bit information is a low bit.

Preferably, referring to FIG. 10, the base station 1001 in the embodiment of the present invention is configured to set the first bit information to indicate that the subframe configuration of the combined frame structure selects two identical first frame structures or subframes. In the second frame structure, setting the second bit information indicates that the subframe configuration of the combined frame structure selects any one of the first frame structure or the second frame structure. For the specific setting process, refer to the corresponding content of step S801 and step S802 disclosed in FIG. 8 of the embodiment of the present invention.

Preferably, referring to FIG. 10, the base station 1001 in the embodiment of the present invention is configured to set the first bit information to indicate the subframe configuration of the combined frame structure, select two different frame structures, and set the second The bit information indicates that the subframe configuration of the combined frame structure selects the first frame structure or the second frame structure as the first radio frame structure. For the specific setting process, refer to the corresponding content of step S901 and step S902 disclosed in FIG. 9 of the embodiment of the present invention.

In summary, the above-mentioned communication method and system provided by the embodiments of the present invention are used in a private network whose main business is image and video uplink transmission. The base station selects a combined frame structure from a set of preset radio frame structures to determine the combination The frame structure is a radio frame structure, and information transmission is performed with the user terminal UE according to the subframe configuration of the combined frame structure. Wherein, the preset radio frame structure set is composed of a combination of a preset first frame structure and a second frame structure, and the pairwise combination includes a combination of the first frame structure and the second frame structure itself . The wireless frame structure of the present invention can maximize the uplink transmission flow according to the use scene, and support high-rate services such as image and video. The wireless frame structure configuration scheme can freely combine the same or different frame structures to form a flexible uplink and downlink resource ratio, which is suitable for different service requirements. At the same time, the special subframe configuration existing in the prior technical solution is cancelled, which can save resource overhead.

The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system or the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for related parts, please refer to the part of the description of the method embodiment. The system and system embodiments described above are merely illustrative, where the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, namely It can be located in one place, or it can be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the objectives of the solutions of the embodiments. Those of ordinary skill in the art can understand and implement it without creative work.

Professionals may further realize that the units and algorithm steps of the examples described in the embodiments disclosed in this article can be implemented by electronic hardware, computer software, or a combination of both, in order to clearly illustrate the possibilities of hardware and software. Interchangeability. In the above description, the composition and steps of each example have been generally described in accordance with the function. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the present invention.

The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown in this document, but should conform to the widest scope consistent with the principles and novel features disclosed in this document.

Claims (10)

[Corrected 15.05.2019 according to Rule 91]
A communication method, characterized in that the method includes: The base station selects a combined frame structure from a set of preset radio frame structures, determines that the combined frame structure is a radio frame structure, and performs information transmission with the user equipment UE according to the subframe configuration of the combined frame structure; Wherein, the preset radio frame structure set is composed of a combination of a preset first frame structure and a second frame structure, and the pairwise combination includes a combination of the first frame structure and the second frame structure itself . The method according to claim 1, further comprising: Setting, by the base station, first bit information and second bit information of downlink signaling based on the combined frame structure; The downlink signaling is sent to the UE, so that the UE determines the structure of the radio frame based on the downlink signaling. The method according to claim 2, wherein the base station setting first bit information and second bit information of downlink signaling based on the combined frame structure comprises: Setting the first bit information by the base station to instruct the subframe configuration of the combined frame structure to select two identical first frame structures or second frame structures; The base station sets the second bit information to instruct the subframe configuration of the combined frame structure to select any one of the first frame structure or the second frame structure. The method according to claim 2, wherein the base station setting first bit information and second bit information of downlink signaling based on the combined frame structure comprises: The base station sets the first bit information to instruct the subframe configuration of the combined frame structure to select two different frame structures; The base station sets the second bit information to indicate that the subframe configuration of the combined frame structure selects the first frame structure or the second frame structure as the first radio frame structure. The method according to claim 1, wherein the preset first frame structure comprises: The first frame structure includes 10 subframes, and the 10 subframes are arranged in order, wherein the first subframe and the fifth subframe are the downlink subframes transmitted by the base station to the UE, and the remaining subframes Frame as an uplink subframe transmitted by the UE to the base station; The preset second frame structure includes: The second frame structure includes 10 subframes, and the 10 subframes are arranged in order, wherein the first, second, sixth, and seventh subframes are used for transmission by the base station to the UE. Downlink subframes, and the remaining subframes are used as uplink subframes transmitted by the UE to the base station. The method according to claim 5, wherein the first frame structure and the second frame structure further comprise: A guard interval is included between each of the downlink subframes and the subsequent adjacent uplink subframes, and the guard interval has a length of m orthogonal frequency division multiplexing technology OFDM symbols; Where m=A+B, A is the number of OFDM symbols in the downlink subframe occupied by the guard interval, and B is the number of OFDM symbols in the uplink subframe occupied by the guard interval; The m also satisfies (m*t-T)/2≥D/C, where t is the length of the OFDM symbol, T is the power amplifier switching time, D is the cell coverage radius, and C is the speed of light. A communication system, characterized in that it comprises: The base station is configured to select a combined frame structure from a set of preset radio frame structures, determine that the combined frame structure is a radio frame structure, and perform information transmission with the user terminal UE according to the subframe configuration of the combined frame structure. The preset wireless frame structure set is composed of a combination of a preset first frame structure and a second frame structure, and the pairwise combination includes a combination of the first frame structure and the second frame structure itself. The system according to claim 7, wherein: The base station is further configured to set first bit information and second bit information of downlink signaling based on the combined frame structure, and send the downlink signaling to the UE, so that the UE is based on the downlink signaling Determine the structure of the wireless frame. The system according to claim 8, wherein: The base station is configured to set the first bit information to indicate the subframe configuration of the combined frame structure, select two identical first frame structures or the second frame structure, and set the second bit information to indicate The subframe configuration of the combined frame structure selects any one of the first frame structure or the second frame structure. The system according to claim 8, wherein: The base station is configured to set the first bit information to indicate that the subframe configuration of the combined frame structure selects two different frame structures, and set the second bit information to indicate that the subframe configuration selection of the combined frame structure is selected. The first frame structure or the second frame structure is the first radio frame structure.

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