TWI514897B - A communication method and apparatus - Google Patents

Description

Communication method and device

The present invention relates to the field of wireless communication technologies, and in particular, to a communication method and device that can flexibly configure a special subframe structure.

Long Term Evolution (LTE) - Time Division Duplexing (TDD) has a radio frame of 10 ms and consists of two half frames, each of which is 5 ms. The first half frame consists of 5 sub-frames numbered 0~4, and the second frame consists of 5 sub-frames numbered 5~9. The subframes numbered 1 and 6 are special subframes, and each special subframe is composed of a downlink pilot time slot (DwPTS), a guard interval (GP), and an uplink pilot time slot (UpPTS). . To support different community radii, as shown in Table 1, the 3GPP TS36.211 protocol specifies the configuration of different special subframe structures. Wherein, the digit of the Config column indicates the number of the special subframe configuration, and the number of the normal cyclic prefix (CP) and the extended CP corresponding column indicates the orthogonal frequency division of the time slot. The number of (Orthogonal Frequency Division Multiplexing, OFDM for short) symbols is used. The configuration of the special subframe structure in the LTE-TDD system is notified to the terminal through the system broadcast, and all the radio frames in the community are configured according to the special subframe structure.

Table 1 TDD special subframe configuration table (number of OFDM symbols)

Once the special subframe structure in the existing LTE-TDD frame structure is configured, all the radio frames adopt the same special subframe structure. In the prior art, there is a problem that the configuration of the special subframe structure is not flexible enough to meet the actual communication requirements.

The embodiment of the invention provides a communication method and device to solve the problem that the configuration of the special subframe structure in the prior art is not flexible.

The object of the present invention is achieved by the following technical solutions: a communication method on a base station side, comprising: configuring at least two special subframe frames, and at least one special subframe structure in the configured special subframe structure. The guard interval length is different from the guard interval length of the remaining special subframe structure, and the at least two special subframe structures are configured in different radio frames or semi-frames; the at least two special types are sent to the terminal. The configuration information of the subframe structure is used to communicate with the terminal using the special subframe structure in the radio frame or the half frame where the configured special subframe structure is located.

According to the method provided by the embodiment of the present invention, the base station can configure different special subframe frames for different radio frames or half frames according to communication requirements, thereby improving the flexibility of configuring the special subframe structure.

For example, a special subframe structure may be configured for a radio frame or a half frame that requires inter-base station air interface monitoring and a radio frame or a half frame that does not require inter-base station air interface monitoring. The GP length of the special subframe structure used for the radio frame or the half frame of the inter-base station air interface monitoring is larger than the special subframe used by the radio frame or the half frame that does not need to perform the inter-base station air interface monitoring. The GP length of the frame structure.

Since the base station performs the air interface monitoring between the base stations, it is necessary to configure a relatively long GP to perform air interface monitoring on the orthogonal frequency division multiplexing symbols in the GP. The air interface monitoring between the base stations is performed periodically, by configuring different special subframes for the radio frame or the half frame that needs to perform the air interface monitoring between the base stations and the radio frame or the half frame that does not need to perform the air interface monitoring between the base stations. The frame structure enables a longer GP when the base station needs to perform air interface monitoring, and uses a shorter GP to transmit signals when the base station does not need to perform air interface monitoring, thereby improving system efficiency and reducing system overhead.

Based on any of the above embodiments, the special subframe structure can be static or semi-statically configured or dynamically configured.

If the at least two special subframe structures are static or semi-statically configured, the configuration information of the at least two special subframe structures is sent to the terminal by using a system broadcast message. The broadcast message of the system further carries information about a radio frame or a half frame of a part or all of the special subframe structure in the at least two special subframe structures.

The way the system broadcast message carries the information of the radio frame or the half frame includes But not limited to the following two:

method one:

In the system broadcast message, carry the information of the radio frame or the half frame of each special subframe structure.

Method 2:

It is assumed that L special subframe structures are configured, where L is a positive integer not less than 2. In the system broadcast message, the information of the radio frame or the half frame in which the L-1 special subframe structure is located is carried.

Preferably, the information of the radio frame or the half frame of the special subframe structure carried in the broadcast message of the system is the N corresponding to the special subframe structure or the N and M corresponding to the special subframe structure. The N, M and the number of the radio frame or the half frame of the special subframe structure have the following correspondence: FN mod N=M

The FN is the number of the radio frame or the half frame where the special sub-frame structure is located, and the N is the repetition period of the radio frame or the half frame where the special sub-frame structure is located, and the M is 0 or positive. Integer.

If the at least two special subframe frames are dynamically configured, the terminal may send signaling to the terminal before sending the special subframe, where the signaling carries the current wireless frame, the current frame, and a set of wireless frames. Or configuration information for a special subframe structure used by a set of frames. In this way, the configuration information of the at least two special subframe structures is sent to the terminal. The signaling may be physical layer control signaling, media access control signaling, or radio resource control protocol signaling.

If the signaling is physical layer control signaling, the physical layer control signaling may be sent to the terminal in the first subframe of the radio frame or the subframe.

An embodiment of the present invention provides a communication method on a terminal side, including: receiving configuration information of at least two special subframe frames sent by a base station, and guarding interval of at least one special subframe structure in a configured special subframe structure. The length of the guard interval is different from that of the rest of the special subframe structure, and the at least two special subframe structures are configured in different radio frames or semi-frames; different wireless signals are determined according to the received configuration information. The special subframe structure used by the frame or the half frame to communicate with the base station using the special subframe structure in the radio frame or the half frame where the configured special subframe structure is located.

According to the method provided by the embodiment of the present invention, after the base station configures different special subframe frames for different radio frames or half frames, the terminal can learn the special subframes configured for different radio frames or half frames. Structure to communicate with the base station.

For example, the at least two special subframe configurations may be: a special subframe structure used by the base station to perform radio frame or half frame monitoring between the base stations, and the base station does not need to perform between the base stations. The special subframe structure used by the radio frame or frame for air interface monitoring. The GP length of the special subframe structure used for the radio frame or the half frame of the inter-base station air interface monitoring is larger than the special subframe used by the radio frame or the half frame that does not need to perform the inter-base station air interface monitoring. The GP length of the frame structure.

Based on any of the foregoing terminal side method embodiments, the manner in which the special subframe structure is configured on the base station side is different, and the manner in which the terminal receives the configuration information of the special subframe structure is also different.

If the base station side is static or semi-statically configured with a special subframe structure, then The terminal receives the configuration information of the at least two special subframe structures sent by the base station by using the system broadcast message, where the terminal receives the system broadcast message sent by the base station, where the system broadcast message carries the at least two special subframes. Configuration information for the structure. The broadcast message of the system further carries information about a radio frame or a half frame of a part or all of the special subframe structure in the at least two special subframe structures.

For the implementation of the information of the radio frame or the half frame in the system broadcast message, refer to the description of the base station side method.

Preferably, the information of the radio frame or the half frame of the special subframe structure carried in the broadcast message of the system is the N corresponding to the special subframe structure or the N and M corresponding to the special subframe structure. The N, M and the number of the radio frame or the half frame of the special subframe structure have the following correspondence: FN mod N=M

The FN is the number of the radio frame or the half frame where the special sub-frame structure is located, and the N is the repetition period of the radio frame or the half frame where the special sub-frame structure is located, and the M is 0 or positive. Integer.

Based on this, the implementation of the special subframe structure used by the different radio frames or the half frames according to the received configuration information may be: determining the special subframe structure according to the N and M corresponding to the special subframe structure. The number of the radio frame or the half frame; the special subframe structure of the radio frame or the half frame is determined according to the configuration information of the special subframe structure. If the radio frame or the half frame information of the special subframe frame carried in the system broadcast message is only N, then M is an agreed value.

Specifically, if the system broadcast message carries the structure of each special subframe For the information of the wireless frame or the half frame, the special subframe structure used by the wireless frame or the half frame of each special subframe structure is determined according to the above processing. If the system broadcast message carries the information of the radio frame or the half frame of the special subframe structure, the special subframe structure used by the radio frame or the half frame may be determined according to the above process, and then determined. The special subframe structure used by the remaining radio frames or frames. For example, if the system broadcast message carries the information of the radio frame or the half frame that the base station needs to perform the air interface monitoring between the base stations, first determine the special subframe structure used by the radio frames or the half frames. Then, according to the received configuration information of another special subframe structure, the special subframe structure used by the remaining radio frame or the half frame is determined.

If the base station side dynamically configures the special subframe structure, the configuration information of the at least two special subframe frames sent by the receiving base station may be: receiving the signaling sent by the base station before receiving the special subframe. The signaling carries configuration information of a special subframe structure used by the current radio frame, the current half frame, a set of radio frames, or a set of half frames. The signaling may be physical layer control signaling, media access control signaling, or radio resource control protocol signaling.

If the signaling is physical layer control signaling, specifically, the physical layer control signaling sent by the base station is received on the first subframe of the radio frame or the subframe. In this way, the configuration information of various special subframe structures sent by the base station is received.

Based on the same inventive concept as the method, the embodiment of the present invention further provides a base station, including: a special subframe configuration module, configured to configure at least two special subframe structures, in the configured special subframe structure, The guard interval length of at least one special subframe structure and The rest of the special subframe structure has different guard interval lengths, and the at least two special subframe structures are configured in different radio frames or semi-frames; and the information sending module is configured to send the foregoing to the terminal. The configuration information of at least two special subframe structures is used to communicate with the terminal in the radio frame or the half frame in which the configured special subframe structure is located.

The base station provided by the embodiment of the present invention can configure different special subframe frames for different radio frames or half frames according to communication requirements, thereby improving the flexibility of the special subframe configuration.

Preferably, the special subframe configuration module is specifically configured to: a radio frame or a half frame that needs to perform air interface monitoring between the base stations, and a radio frame or a half frame configuration that does not need to perform air monitoring between the base stations. The special sub-frame structure requires that the GP length of the special subframe structure used for the radio frame or the half frame of the inter-base station air interface monitoring is larger than the radio frame or the half frame that does not need to perform the inter-base station air interface monitoring. The GP length of the special subframe structure used.

Since the base station performs the air interface monitoring between the base stations, it is necessary to configure a relatively long GP to perform air interface monitoring on the orthogonal frequency division multiplexing symbols in the GP. The air interface monitoring between the base stations is performed periodically, by configuring different special subframes for the radio frame or the half frame that needs to perform the air interface monitoring between the base stations and the radio frame or the half frame that does not need to perform the air interface monitoring between the base stations. The frame structure enables the base station to use a longer GP when performing air interface monitoring, and uses a shorter GP to transmit signals when no air interface monitoring is performed, thereby improving system efficiency and reducing system overhead.

Based on any of the above base station embodiments, the special subframe structure can be static Or semi-statically configured, it can also be dynamically configured.

If the at least two special subframe configurations are static or semi-static, the configuration information sending module is specifically configured to: send, by using a system broadcast message, configuration information of the at least two special subframe structures to the terminal, the system The broadcast message also carries information about the radio frame or the half frame of the part or all of the special sub-frame structures in the at least two special subframe structures.

Preferably, the information of the radio frame or the half frame of the special subframe structure carried in the broadcast message of the system is the N corresponding to the special subframe structure or the N and M corresponding to the special subframe structure. The N, M and the number of the radio frame or the half frame of the special subframe structure have the following correspondence: FN mod N=M

The FN is the number of the radio frame or the half frame where the special sub-frame structure is located, and the N is the repetition period of the radio frame or the half frame where the special sub-frame structure is located, and the M is 0 or positive. Integer.

If the at least two special subframe configurations are dynamically configured, the configuration information sending module is specifically configured to: before sending the special subframe, send signaling to the terminal, where the signaling carries the current wireless frame, and when Configuration information of a special subframe structure used by the first half frame, a set of radio frames, or a set of half frames. The signaling is physical layer control signaling, media access control signaling, or radio resource control protocol signaling. .

If the signaling is the physical layer control signaling, the configuration information sending module may be specifically configured to: send the physical layer control to the terminal in the first subframe of the radio frame or the half frame Signaling.

Based on the same inventive concept as the method, the present invention further provides a terminal, comprising: a configuration information receiving module, configured to receive configuration information of at least two special subframe frames sent by the base station, and configure a special subframe structure. The guard interval length of the at least one special subframe structure is different from the guard interval length of the remaining special subframe structures, and the at least two special subframe structures are configured in different radio frames or semi-frames. The special subframe structure determining module is configured to determine a special subframe structure used by different radio frames or half frames according to the received configuration information, so as to be in the radio frame where the special subframe structure is configured Or the half frame uses the special subframe structure to communicate with the base station.

In the terminal provided by the embodiment of the present invention, after the base station configures different special subframe frames for different radio frames or half frames, the terminal can learn the special subframes configured for different radio frames or half frames. Structure to communicate with the base station.

Preferably, the at least two special subframe configurations include: a special subframe structure used by the base station to perform radio frame or semi-frame monitoring between the base stations, and the base station does not need to perform a base. The special subframe structure used by the radio frame or the half frame of the inter-station air interface monitoring requires that the GP length of the special subframe structure used for the radio frame or the half frame of the air interface monitoring between the base stations is greater than that required. The GP length of the special subframe structure used by the radio frame or the half frame for the air interface monitoring between the base stations.

Based on any of the above terminal embodiments, the base station side is configured with a special subframe structure. Different ways, the way in which the terminal receives the configuration information of the special subframe structure is different.

If the base station side is configured with a special subframe frame statically or semi-statically, the configuration information receiving module is specifically configured to: receive a system broadcast message sent by the base station, where the system broadcast message carries the at least two special subframes The configuration information of the structure, the system broadcast message also carries the information of the radio frame or the half frame of the part or all of the special subframe structure in the at least two special subframe structures.

Preferably, the information of the radio frame or the half frame of the special subframe structure carried in the broadcast message of the system is the N corresponding to the special subframe structure or the N and M corresponding to the special subframe structure. The N, M and the number of the radio frame or the half frame of the special subframe structure have the following correspondence: FN mod N=M

The FN is the number of the radio frame or the half frame where the special sub-frame structure is located, and the N is the repetition period of the radio frame or the half frame where the special sub-frame structure is located, and the M is 0 or positive. Integer.

Based on this, the special subframe structure determining module is specifically configured to: determine the number of the radio frame or the half frame corresponding to the special subframe structure according to the N and M corresponding to the special subframe structure, if the system broadcasts The radio frame or half frame information of the special subframe frame carried in the message is only N, then M is the agreed value; according to the configuration information of the special subframe structure, the radio frame or the half frame of the frame is determined according to the configuration information of the special subframe structure. Special subframe structure.

If the base station side dynamically configures the special subframe structure, then the configuration information is connected. The receiving module may be specifically configured to: before receiving the special subframe, receive the signaling sent by the base station, where the signaling carries the current wireless frame, the current frame, a set of wireless frames, or a group of semi-messages. The configuration information of the special subframe structure used by the frame, the signaling is physical layer control signaling, media access control signaling, or radio resource control protocol signaling.

If the signaling is the physical layer control signaling, the configuration information receiving module may be specifically configured to: receive the physical layer sent by the base station in a first subframe of the radio frame or the half frame Control signaling.

Based on the same inventive concept as the method, the embodiment of the present invention further provides a base station, including: a transceiver, a processor, and a memory, where the processor is configured with one or more executable programs, the one or more The executable program is used to perform the following methods: configuring at least two special subframe structures, and protecting the length of the guard interval of at least one special subframe structure and the rest of the special subframe structure in the configured special subframe structure. The interval lengths are different, and the at least two special subframe structures are configured in different radio frames or semi-frames; the transceiver is configured to send the configuration of the at least two special subframe structures to the terminal. Information; the memory used to store one or more executable programs that are used to configure the processor. The base station provided by the embodiment of the present invention can configure different special subframe frames for different radio frames or half frames according to communication requirements, and improve the configuration of special subframes. flexibility.

For a specific implementation manner of the base station, reference may be made to the description of the foregoing base station embodiment, and details are not described herein again.

Based on the same inventive concept as the method, the embodiment of the present invention further provides a terminal, including: a transceiver, a processor, and a memory, where the transceiver is configured to receive at least two special subframe structures sent by the base station. In the configuration information, the guard interval length of at least one special subframe structure in the configured special subframe structure is different from the guard interval length of the remaining special subframe structures, and the at least two special subframe structures are configured. In a different radio frame or semi-frame; the processor is configured with one or more executable programs, and the one or more executable programs are used to perform the following methods: determining different wireless according to the received configuration information A special subframe structure used by a frame or a frame; the memory is used to store one or more executable programs that are used to configure the processor. In the terminal provided by the embodiment of the present invention, after the base station configures different special subframe frames for different radio frames or half frames, the terminal can learn the special subframes configured for different radio frames or half frames. Structure to communicate with the base station.

For a specific implementation manner of the terminal, refer to the description of the foregoing terminal embodiment, and details are not described herein again.

100-110‧‧‧Steps

200-210‧‧‧Steps

401‧‧‧Special subframe configuration module

402‧‧‧Configure information sending module

501‧‧‧Configure information receiving module

502‧‧‧Special subframe structure determination module

601‧‧‧ transceiver

602‧‧‧ processor

603‧‧‧ memory

701‧‧‧ transceiver

702‧‧‧ processor

703‧‧‧ memory

In order to more clearly illustrate the technical solution in the embodiment of the present invention, the following will be true BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in the claims Further drawings can also be obtained from these figures.

1 is a schematic diagram of a method for a base station side according to an embodiment of the present invention; FIG. 2 is a schematic diagram of a method for a terminal side according to an embodiment of the present invention; FIG. 3 is a schematic diagram of an air interface monitoring architecture according to an embodiment of the present invention; Figure 5 is a schematic diagram of a terminal according to an embodiment of the present invention; Figure 6 is a schematic structural diagram of a base station according to an embodiment of the present invention; and Figure 7 is a schematic structural diagram of a terminal according to an embodiment of the present invention.

The present invention will be further described in detail with reference to the accompanying drawings, in which . All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In the technical solution provided by the embodiment of the present invention, the base station configures at least two special subframe frames and informs the terminal. The GP length of at least one special subframe structure in the special subframe structure configured by the base station is different from the GP length of other special subframe structures, and various special subframe structures are configured in different wireless frames or Semi-message box. The base station can configure different special subframe structures for different radio frames or half frames according to communication requirements. Increased flexibility in special subframe configurations.

Before the detailed description of the technical solutions provided by the embodiments of the present invention, the technical terms or technical features involved in the present invention are first explained. The special subframe structure: the special subframe structure of the embodiment of the present invention can be as shown in Table 1. The special subframe structure specified in the existing protocol may also be a special subframe structure of the base station custom configuration.

The configuration information of the special subframe structure: it can be the specific parameters of the special subframe structure, such as the length information of the DwPTS, GP, and UpPTS, or the number of the special subframe structure in Table 1, or Other information that can determine the structure of a particular sub-frame.

Base station: The base station in the embodiment of the present invention is a base station in the TDD system. For example, an evolved base station (eNB), a primary base station (MeNB), a home base station (HeNB), and the like in a TDD-LTE system.

"The special sub-frame structure is configured in the radio frame or the semi-frame" means that the special sub-frame structure can be used in the entire radio frame or in the two frames of the radio frame. Different special subframe structures. In the implementation, the base station can configure all the special sub-frame structures in the radio frame according to the requirements, or configure all the special sub-frame structures in the semi-frame, and also configure some special sub-frames in the wireless frame. In the frame, configure another special subframe in the frame.

The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

As shown in FIG. 1 , an embodiment of the present invention provides a communication method on a base station side, which specifically includes the following operations:

Step 100: Configure at least two special subframe frames. In the configured special subframe structure, the guard interval length of at least one special subframe structure is different from the guard interval length of the remaining special subframe structures, and The at least two special subframe structures are configured in different radio frames or semi-frames.

Step 110: Send configuration information of the at least two special subframe structures to the terminal, so that the wireless frame or the half frame where the configured special subframe structure is used to communicate with the terminal by using the special subframe structure.

In step 100, a special subframe structure may be configured for the radio frame or the half frame that needs to perform the air interface monitoring between the base stations and the radio frame or the half frame that does not need to perform the air interface monitoring between the base stations. The GP length of the special subframe structure used for the radio frame or the half frame of the inter-base station air interface monitoring is larger than the special subframe used by the radio frame or the half frame that does not need to perform the inter-base station air interface monitoring. The GP length of the frame structure.

Since the base station performs the air interface monitoring between the base stations, it is necessary to configure a relatively long GP to perform air interface monitoring on the orthogonal frequency division multiplexing symbols in the GP. The air interface monitoring between the base stations is performed periodically, by configuring different special subframes for the radio frame or the half frame that needs to perform the air interface monitoring between the base stations and the radio frame or the half frame that does not need to perform the air interface monitoring between the base stations. The frame structure enables a longer GP when the base station needs to perform air interface monitoring, and uses a shorter GP to transmit signals when the base station does not need to perform air interface monitoring, thereby improving system efficiency and reducing system overhead.

In the embodiment of the present invention, the special subframe structure may be static or semi-statically configured or dynamically configured.

If the at least two special subframe structures are static or semi-statically configured, The base station may send configuration information of the at least two special subframe structures to the terminal by using a system broadcast message. The broadcast message of the system further carries information about a radio frame or a half frame of a part or all of the special subframe structure in the at least two special subframe structures.

There are various ways to implement the information of the wireless frame or the half frame in the system broadcast message. The following two examples are given:

method one:

In the system broadcast message, carry the information of the radio frame or the half frame of each special subframe structure.

Method 2:

It is assumed that L special subframe structures are configured, where L is a positive integer not less than 2. In the system broadcast message, the information of the radio frame or the half frame in which the L-1 special subframe structure is located is carried.

Regardless of the type of information carried in the wireless frame or the half frame, the specific content of the information of the wireless frame or the half frame is also various. Preferably, the information of the radio frame or the half frame of the special subframe structure carried in the broadcast message of the system is the N corresponding to the special subframe structure or the N and M corresponding to the special subframe structure. The N, M and the number of the radio frame or the half frame of the special subframe structure have the following correspondence: FN mod N=M

The FN is the number of the radio frame or the half frame where the special sub-frame structure is located, and the N is the repetition period of the radio frame or the half frame where the special sub-frame structure is located, and the M is 0 or positive. The integer and the value of M are fixed.

If the special subframe structure carried in the system broadcast message is located in the wireless communication The frame or half frame information is only N, then M is the agreed value.

For example, the configuration of the two special subframe frames is as follows. It is assumed that the first special subframe structure is configured on a radio frame or a half frame with an interval of N-1, that is, the radio frame where the special subframe structure is located. Or the repeat period of the half frame is N. The second special subframe is configured on other radio frames or half frames. In this case, the system broadcast message may carry only the information of the radio frame or the half frame of the first special subframe structure, that is, N, or N and M. If the special sub-frame is configured on the radio frame, then N is the number of radio frames. If the special sub-frame is configured on the half frame, according to the agreement, N may be the number of radio frames, or The number of frames is half.

For example, four special subframe frames are configured. It is assumed that one of the special subframes is configured on a radio frame or a half frame with an interval of N-1, and the other two special subframe frames are located in the radio frame or The relative position of the half frame and the radio frame or the half frame of the special subframe structure is fixed. There is also a special sub-frame structure configured on the remaining radio frames or sub-frames. In this case, the system broadcast message can carry the information of the radio frame or the half frame of the first three special subframe structures. Since the relative positions of the radio frames or the half frames of the three special sub-frame structures are fixed, that is, the three special sub-frames are all arranged on the radio frame or the half frame with the interval of N-1, then one of them The information of the wireless frame or the half frame of the special subframe is N, or N and the M corresponding to the special subframe, and the information of the wireless frame or the half frame of the other two special subframes is relative to the special The relative position of the radio frame or frame of the sub-frame. Or, the information of the radio frame or the half frame of the three special subframes is N, or N and the corresponding M of the special subframe.

If at least two special subframe structures are dynamically configured, they can be sent Before sending the special subframe, sending signaling to the terminal, where the signaling carries the configuration information of the special subframe structure used by the current radio frame, the current frame, a set of radio frames, or a group of frames. . In this way, the configuration information of the at least two special subframe structures is sent to the terminal. The signaling may be physical layer control signaling (eg, PDCCH, EPDCCH, etc.), medium access control (MAC) signaling, or radio resource control protocol (RRC) signaling, and the like.

If the signaling is physical layer control signaling, the physical layer control signaling may be sent to the terminal in the first subframe of the radio frame or the subframe.

For example, for the special subframe structure configured on the radio frame, before transmitting the special subframes on the radio frames, signaling is sent to the terminal, where the signaling carries the current radio frame in which the radio frame is located. The special subframe structure, or the configuration information of the special subframe structure used by a set of radio frames. The set of radio frames may be a current radio frame including the signaling and subsequent multiple or non-contiguous radio frames, or may be consecutive or discontinuous after the current sub-frame of the signaling. Wireless frame. In addition, the set of radio frames may be the same radio frame with the same special subframe structure, or the radio frame with different special subframe structure.

For the special subframe structure configured on the frame, the description of the information carried in the signaling can be referred to the above description, and details are not described herein again.

FIG. 2 is a schematic diagram of a communication method on a terminal side according to an embodiment of the present disclosure, which specifically includes the following operations:

Step 200: Receive configuration information of at least two special subframe frames sent by the base station, and protect the length of the guard interval of the at least one special subframe structure and the rest of the special subframe structure in the configured special subframe frame structure. The interval lengths are different, and the at least two special The subframe structure is configured in different radio frames or semi-frames.

Step 210: Determine, according to the received configuration information, a special subframe structure used by different radio frames or a half frame, so that the special subframe is used in the radio frame or the half frame where the configured special subframe structure is located. The frame structure communicates with the base station described above.

According to the method provided by the embodiment of the present invention, after the base station configures different special subframe frames for different radio frames or half frames, the terminal can learn the special subframes configured for different radio frames or half frames. Structure to communicate with the base station.

In the embodiment of the present invention, the manner in which the special subframe structure is configured on the base station side is different, and the manner in which the terminal receives the configuration information of the special subframe structure is also different.

If the base station side is configured with a special subframe structure statically or semi-statically, the terminal receives the configuration information of the at least two special subframe frames sent by the base station, specifically: the terminal receives the system broadcast message sent by the base station, The system broadcast message carries configuration information of the at least two special subframe structures. The broadcast message of the system further carries information about a radio frame or a half frame of a part or all of the special subframe structure in the at least two special subframe structures.

For the implementation of the information of the radio frame or the half frame in the system broadcast message, refer to the description of the base station side method.

Regardless of the type of information carried in the wireless frame or the half frame, the specific content of the information of the wireless frame or the half frame is also various. For details, refer to the description of the base station side method embodiment.

Preferably, the information of the radio frame or the half frame of the special subframe structure carried in the broadcast message of the system is the N corresponding to the special subframe structure or the special subframe structure. Corresponding N and M, wherein the N, M and the number of the radio frame or the half frame of the special subframe structure have the following correspondence: FN mod N=M

The FN is the number of the radio frame or the half frame where the special sub-frame structure is located, and the N is the repetition period of the radio frame or the half frame where the special sub-frame structure is located, and the M is 0 or positive. Integer and M value is fixed.

Based on this, the implementation of the special subframe structure used by the different radio frames or the half frames according to the received configuration information may be: determining the special subframe structure according to the N and M corresponding to the special subframe structure. The number of the radio frame or the half frame; the special subframe structure of the radio frame or the half frame is determined according to the configuration information of the special subframe structure. If the radio frame or the half frame information of the special subframe frame carried in the system broadcast message is only N, then M is an agreed value.

Specifically, if the system broadcast message carries the information of the radio frame or the half frame of each special subframe structure, then according to the foregoing process, the radio frame or the half frame of each special subframe structure is determined. The special subframe structure used. If the system broadcast message carries the information of the radio frame or the half frame of the special subframe structure, the special subframe structure used by the radio frame or the half frame may be determined according to the above process, and then determined. The special subframe structure used by the remaining radio frames or frames. For example, if the system broadcast message carries the configuration information of two special subframe structures and the information of the wireless frame or the half frame of one of the special subframe structures, first determine the wireless frames or the half frames. The special subframe structure used; then, according to the configuration information of another special subframe structure received, the special subframe structure used by the remaining radio frame or the half frame is determined. also For example, if the system broadcast message carries the configuration information of the four special subframe structures and the information of the radio frame or the half frame of the three special subframe structures, and the three special subframe structures are located, In the information of the wireless frame or the half frame, only the information of the wireless frame or the half frame of the special subframe structure is the N and M corresponding to the special subframe, and the other two special subframe structures are located. The information of the wireless frame or the half frame is relative to the location of the wireless frame or the half frame of the special subframe structure. Then, the special sub-frame structure is first determined, and then two other special sub-frame structures are determined according to the relative position information, and finally the fourth special sub-frame structure is determined according to the configuration information of the fourth special sub-frame structure.

If the base station side dynamically configures the special subframe structure, the configuration information of the at least two special subframe frames sent by the receiving base station may be: receiving the signaling sent by the base station before receiving the special subframe. The signaling carries configuration information of a special subframe structure used by the current radio frame, the current half frame, a set of radio frames, or a set of half frames. The signaling may be physical layer control signaling, media access control signaling, or radio resource control protocol signaling.

If the signaling is physical layer control signaling, specifically, the physical layer control signaling sent by the base station is received on the first subframe of the radio frame or the subframe. In this way, the configuration information of various special subframe structures sent by the base station is received. For the description of the information carried in the signaling, reference may be made to the above-described base station side method embodiment.

The method provided by the embodiment of the present invention is described in detail below in conjunction with a specific application scenario.

An inter-cell clock synchronization scheme in an existing LTE-TDD system is an air interface synchronization scheme based on inter-network monitoring.

In the research of LTE Release 9 (LTE Rel-9) for Time Division Duplex Home Base Station (TDD Home eNB), an air interface synchronization technology scheme (3GPP TR36.922) suitable for TDD base stations is proposed. The main idea is that the primary synchronization source community (the community under the MeNB in FIG. 3) of the air interface synchronization configures a special subframe with a shorter GP (as shown in FIG. 3, the MeNB is configured as a special subframe configuration 4). The target community to be synchronized (the community under the HeNB1 in FIG. 3) is directly obtained from the primary synchronization source community. A special subframe with a relatively large GP is configured. As shown in FIG. 3, the HeNB1 is configured as a special subframe. Configuration 1), in this way, the target community to be synchronized can detect the reference signals of the CRS and the like of the primary synchronization source community in the GP of the special subframe with the first few OFDM symbols that are vacant in the synchronization source community to obtain time synchronization. Similarly, the target synchronization community to be synchronized (the community under HeNB2 in FIG. 3) cannot be directly obtained from the primary synchronization source community to configure a relatively large special subframe of the GP (as shown in FIG. 3, configured by HeNB2). The special subframe configuration 0), so that the target community to be synchronized can detect the reference signals such as CRS to obtain synchronization in the GP of the special subframe of the special subframe relative to the first few OFDM symbols that are vacant.

It can be seen that in the air interface synchronization scheme, the GP to be synchronized is required to configure a GP that is longer to receive the downlink signal sent by the synchronization source base station to obtain synchronization. Since the special subframe structure in the existing LTE-TDD frame structure is configured, all the radio frames use the same GP length, and in fact, the base station air interface synchronization does not need to be synchronized in the base station in each radio frame. Both monitor the downlink signal of the synchronization source base station. Therefore, based on the existing system design, to implement the air interface synchronization scheme based on the TDD special subframe, the base station to be synchronized is required to allocate a longer GP time slot in all the radio frames, since the GP time slot cannot transmit the physical signal, Therefore, the overhead of the system is significantly increased, and the system efficiency is reduced.

The HeNB1 in FIG. 3 is used as an example to apply the method provided by the embodiment of the present invention. The HeNB1 configures a special subframe for a radio frame that needs to perform air interface monitoring between the base stations and a radio frame that does not need to perform air monitoring between the base stations. structure. The GP length of the special subframe structure used by the radio frame for monitoring the air between the base stations is larger than the GP length of the special subframe structure used by the radio frame that does not need to perform the inter-base station air interface monitoring.

Preferably, a special subframe structure is respectively configured for the radio frame that needs to perform air interface monitoring between the base stations and the radio frame that does not need to perform air interface monitoring between the base stations. Then, the special subframe structure used for the radio frame for monitoring the air between the base stations is called a special subframe structure, and the special subframe structure used for the radio frame for detecting the air interface between the base stations is not needed. It is called special subframe structure II.

Of course, according to the communication requirements, a plurality of special subframe structures may be respectively configured for the wireless frame that needs to perform the air interface monitoring between the base stations and the wireless frame that does not need to perform the air interface monitoring between the base stations.

Since the base station performs the air interface monitoring between the base stations, it is necessary to configure a relatively long GP to perform air interface monitoring on the orthogonal frequency division multiplexing symbols in the GP. The air interface monitoring between the base stations is performed periodically, by configuring different special subframes for the radio frame or the half frame that needs to perform the air interface monitoring between the base stations and the radio frame or the half frame that does not need to perform the air interface monitoring between the base stations. The frame structure enables the base station to use a longer GP when performing air interface monitoring, and uses a shorter GP to transmit signals when no air interface monitoring is performed, thereby improving system efficiency and reducing system overhead.

If the static or semi-static configuration requires a special subframe structure for the radio frame for inter-base station air interface monitoring, and wireless without the need for inter-base station air interface monitoring The special subframe structure used by the frame is two, and the air interface monitoring between the base stations is performed every N radio frames. Then, the system frame number (SFN) of the radio frame that needs to perform the air interface monitoring between the base stations can be determined by the formula SFN mod N=M. The system frame number SFN of the wireless frame is the number of the system frame of the wireless frame, and N is the repetition period of the wireless frame or the half frame of the special subframe structure, M is 0 or a positive integer, and M The value is fixed.

The HeNB1 sends the configuration information of the special subframe structure 1, the configuration information of the special subframe structure 2, and the value of N in the system broadcast message. Optionally, the system broadcast message also carries the value of M. If the value of M is not carried in the system broadcast message, the value of M is pre-agreed with the terminal.

Specifically, a new field may be defined in the system broadcast message (for example, the system information block SIB1) for carrying all the above information. Then, the field that carries the configuration of the special subframe structure defined in the original protocol can no longer carry the configuration information of the special subframe structure. The field that carries the special subframe structure configuration defined in the original agreement can continue to carry the configuration information of the special subframe structure, and the special subframe structure corresponding to the field is called the special subframe structure 3. In this case, during the mobility measurement of the terminal, the special subframe structure 3 is used to communicate with the terminal. When the air interface monitoring between the base stations is required, the special subframe structure is used, and the special subframe structure 2 is used on the remaining wireless frames.

It is also possible to define a new field in the system broadcast message (for example, SIB1) for carrying the configuration information of the special subframe structure 1 and the value of N. If the value of M is sent, it is also carried in this field. The field carrying the special subframe structure defined in the original agreement carries the configuration information of the special subframe structure 2. In this case, the special subframe structure is used when the air interface monitoring between the base stations is required, and the special subframe structure 2 is used on the remaining wireless frames.

The terminal receives the system broadcast message sent by the HeNB1, and obtains configuration information and other information of the special subframe structure.

Specifically, if the newly defined field carries the configuration information of the special subframe structure 1, the configuration information of the special subframe structure 2, and the value of N, optionally, the value of M is also carried. The terminal obtains the information from the newly defined field, determines the SFN of the wireless frame according to N and M, and determines the special subframe structure used by the wireless frame corresponding to the SFN according to the configuration information of the special subframe structure 1. One. If the field of the special subframe configuration defined in the original agreement also carries the configuration information of the special subframe structure 3, the special subframe structure used by the radio frame corresponding to the mobility measurement process is determined. Determining the special subframe structure 2 used by the remaining radio frames; if the field in the original protocol that carries the special subframe structure configuration no longer carries information, determining the wireless outside the radio frame corresponding to the SFN The special subframe structure used by the frame is two.

If the special subframe structure used by the wireless frame is dynamically configured, and the air interface monitoring between the base stations is performed every N radio frames. Then, the system frame number (SFN) of the radio frame that needs to perform the air interface monitoring between the base stations can be determined by the formula SFN mod N=M. The system frame number SFN of the wireless frame is the number of the system frame of the wireless frame, and N is the repetition period of the wireless frame or the half frame of the special subframe structure, M is 0 or a positive integer, and M The value is fixed.

Before transmitting the special subframe on the radio frame, the HeNB1 sends signaling to the terminal, where the signaling carries the special subframe structure used by the current radio frame, or carries a set of radio frames. The configuration information of the special subframe structure. The set of radio frames may be the current radio frame including the signaling and subsequent multiple or discontinuous multiple radios The frame may also be multiple radio frames that are consecutive or discontinuous after the current subframe in which the signaling is located. In addition, the set of radio frames may be the same radio frame with the same special subframe structure, or the radio frame with different special subframe structure.

Taking the physical layer control signaling as an example, HeNB1 sends physical layer control signaling to the terminal in each of the first subframes of the radio frame that needs to perform air interface monitoring between the base stations, and the physical layer control signaling carries Configuration information of the special subframe structure 1. Or the physical layer control signaling sent by the first subframe of the first radio frame that needs to perform the inter-base station air interface monitoring carries the configuration information of the special subframe configuration 1 and the value of N, optionally, Also carries the value of M. Further, if the field that carries the special subframe structure configuration defined in the original protocol no longer carries information, the HeNB1 does not need to perform the first subframe of the radio frame for monitoring the air between the base stations. The terminal sends physical layer control signaling, where the physical layer control signaling carries the configuration information of the special subframe used by the wireless frame or a set of wireless frames; of course, if the special configuration of the wireless frames is not required to be dynamically configured The subframe structure can also send configuration information of the special subframe structure 2 through the system broadcast message. It can be seen that the dynamic special subframe structure configuration and the pre-special subframe structure configuration can be combined. If the field of the special subframe configuration defined in the original protocol still carries the configuration information of the special subframe structure, the HeNB1 may carry the configuration information of the special subframe structure 2 in the field.

Before receiving the special subframe, the terminal receives the foregoing signaling sent by the HeNB1, and obtains configuration information of the special subframe structure.

Specifically, if the signaling carries the configuration information of the special subframe structure 1 or the configuration information of the special subframe structure 2, the terminal determines the special subframe structure used by the wireless frame. If the field defined in the original agreement that carries the special subframe structure is also carrying a special The configuration information of the subframe structure determines the special subframe structure used by the radio frame corresponding to the mobility measurement process according to the configuration information of the special subframe structure carried in the field.

For the foregoing method, the embodiment of the present invention further provides a base station and a terminal. The specific content of the base station and the terminal may be implemented by referring to the foregoing method, and details are not described herein again.

As shown in FIG. 4, a base station is provided in the embodiment of the present invention. The base station includes: a special subframe configuration module 401, configured to configure at least two special subframe structures, and a special subframe structure in the configuration. The guard interval length of the at least one special subframe structure is different from the guard interval length of the remaining special subframe structures, and the at least two special subframe structures are configured in different radio frames or frames. The configuration information sending module 402 is configured to send configuration information of the at least two special subframe structures to the terminal, so that the special subframe is used in the radio frame or the half frame where the configured special subframe structure is located. The frame structure communicates with the terminal.

The base station provided by the embodiment of the present invention can configure different special subframe frames for different radio frames or half frames according to communication requirements, thereby improving the flexibility of the special subframe configuration.

Preferably, the special subframe configuration module 401 is specifically configured to: a radio frame or a half frame that needs to perform air interface monitoring between the base stations, and a radio frame or a half frame that does not need to perform air monitoring between the base stations. The special subframe structure is configured, and the GP length of the special subframe structure used for the radio frame or the half frame of the inter-base station air interface monitoring is larger than the radio frame or the half frame that does not need to perform the inter-base station air interface monitoring. The GP length of the special subframe structure used.

Since the base station performs the air interface monitoring between the base stations, it is necessary to configure a relatively long GP to perform air interface monitoring on the orthogonal frequency division multiplexing symbols in the GP. The air interface monitoring between the base stations is performed periodically, by configuring different special subframes for the radio frame or the half frame that needs to perform the air interface monitoring between the base stations and the radio frame or the half frame that does not need to perform the air interface monitoring between the base stations. The frame structure enables the base station to use a longer GP when performing air interface monitoring, and uses a shorter GP to transmit signals when no air interface monitoring is performed, thereby improving system efficiency and reducing system overhead.

Based on any of the above described base station embodiments, the special subframe structure may be static or semi-statically configured or dynamically configured.

If the at least two special subframe configurations are static or semi-static, the configuration information sending module 402 is specifically configured to: send, by using a system broadcast message, configuration information of the at least two special subframe structures to the terminal, where The system broadcast message also carries information about the radio frame or the half frame of the part or all of the special subframe structure in the at least two special subframe structures.

Preferably, the information of the radio frame or the half frame of the special subframe structure carried in the broadcast message of the system is the N corresponding to the special subframe structure or the N and M corresponding to the special subframe structure. The N, M and the number of the radio frame or the half frame of the special subframe structure have the following correspondence: FN mod N=M

The FN is the number of the radio frame or the half frame where the special sub-frame structure is located, and the N is the repetition period of the radio frame or the half frame where the special sub-frame structure is located, and the M is 0 or positive. Integer and M value is fixed.

If the at least two special subframe configurations are dynamically configured, the configuration information sending module 402 is specifically configured to: before transmitting the special subframe, send signaling to the terminal, where the signaling carries the current wireless frame, Configuration information of a special subframe structure used by a current frame, a set of radio frames, or a group of subframes, the signaling being physical layer control signaling, media access control signaling, or radio resource control protocol make.

If the signaling is physical layer control signaling, the configuration information sending module 402 may be specifically configured to: send the physical layer control signaling to the terminal in a first subframe of the radio frame or the half frame.

The embodiment of the present invention as shown in FIG. 5 further provides a terminal, where the terminal includes: a configuration information receiving module 501, configured to receive configuration information of at least two special subframe structures sent by the base station, in the special configuration of the configuration. The guard interval length of at least one special subframe structure in the frame structure is different from the guard interval length of the remaining special subframe structures, and the at least two special subframe structures are configured in different radio frames or half. The special subframe structure determining module 502 is configured to determine, according to the received configuration information, a special subframe structure used by different radio frames or a half frame, so that the configured special subframe structure is located. The wireless frame or frame uses the special subframe structure to communicate with the base station.

In the terminal provided by the embodiment of the present invention, after the base station configures different special subframe frames for different radio frames or half frames, the terminal can learn the special subframes configured for different radio frames or half frames. Structure to communicate with the base station.

Preferably, the at least two special subframe structures comprise: The base station needs to perform a special subframe structure used for the radio frame or the half frame of the inter-base station air interface monitoring, and the radio frame or the half frame that the base station does not need to perform the air interface monitoring between the base stations. The special sub-frame structure requires that the GP length of the special subframe structure used for the radio frame or the half frame of the inter-base station air interface monitoring is larger than the radio frame or the half frame that does not need to perform the inter-base station air interface monitoring. The GP length of the special subframe structure used.

Based on any of the foregoing terminal embodiments, the manner in which the special subframe structure is configured on the base station side is different, and the manner in which the terminal receives the configuration information of the special subframe structure is also different.

If the base station side is configured with a special subframe structure, the configuration information receiving module 501 is specifically configured to: receive a system broadcast message sent by the base station, where the system broadcast message carries the at least two special subframes The configuration information of the frame structure, the system broadcast message also carries the information of the radio frame or the half frame of the part or all of the special subframe structure in the at least two special subframe structures.

Preferably, the information of the radio frame or the half frame of the special subframe structure carried in the broadcast message of the system is the N corresponding to the special subframe structure or the N and M corresponding to the special subframe structure. The N, M and the number of the radio frame or the half frame of the special subframe structure have the following correspondence: FN mod N=M

The FN is the number of the radio frame or the half frame where the special sub-frame structure is located, and the N is the repetition period of the radio frame or the half frame where the special sub-frame structure is located, and the M is 0 or positive. Integer and M value is fixed.

Based on this, the special subframe structure determining module 502 is specifically configured to: determine the number of the radio frame or the half frame corresponding to the special subframe structure according to the N and M corresponding to the special subframe structure, if the system The radio frame or frame information of the special subframe frame carried in the broadcast message is only N, then M is the agreed value; the radio frame or frame is determined according to the configuration information of the special subframe structure. Special subframe structure.

If the base station side dynamically configures the special subframe structure, the configuration information receiving module 501 may be specifically configured to: before receiving the special subframe, receive the signaling sent by the base station, where the signaling carries the current wireless information. Configuration information of a special subframe structure used by a frame, a current frame, a set of radio frames, or a group of subframes, the signaling being physical layer control signaling, media access control signaling, or radio resource control Protocol signaling.

If the signaling is the physical layer control signaling, the configuration information receiving module 501 may be specifically configured to: receive the physics sent by the base station in a first subframe of the radio frame or the half frame Layer control signaling.

Based on the same inventive concept as the method, the embodiment of the present invention further provides a base station as shown in FIG. 6, which includes: a transceiver 601, a processor 602, and a memory 603. The processor 602 is configured with one or more An executable program, the one or more executable programs are configured to perform the following methods: configuring at least two special subframe structures, and configuring a guard interval length of at least one special subframe structure in the configured special subframe structure And the rest The special subframe structure has different guard interval lengths, and the at least two special subframe structures are configured in different radio frames or semi-frames; the transceiver is configured to send the at least two to the terminal. Configuration information of a special subframe structure; the memory is used to store one or more executable programs, and is used to configure the processor 602.

Preferably, the processor 602 is specifically configured to: configure a special subframe for a radio frame or a half frame that needs to perform air interface monitoring between the base stations, and a radio frame or a half frame that does not need to perform air monitoring between the base stations. The frame structure, the special subframe structure used for the radio frame or the half frame of the inter-base station air interface monitoring has a longer guard interval length than the radio frame or the half frame that does not need to perform the inter-base station air interface monitoring. The length of the guard interval of the special subframe structure.

Preferably, the at least two special subframe structures are statically or semi-statically configured, and the transceiver 601 is specifically configured to: send, by using a system broadcast message, configuration information of the at least two special subframe structures to the terminal. The system broadcast message also carries information about the radio frame or the half frame of the part or all of the special subframe structure in the at least two special subframe structures.

Preferably, the information of the radio frame or the half frame of the special subframe structure carried in the broadcast message of the system is the N corresponding to the special subframe structure or the N and M corresponding to the special subframe structure. The N, M and the number of the radio frame or the half frame of the special subframe structure have the following correspondence: FN mod N=M

The FN is the number of the radio frame or the half frame where the special sub-frame structure is located, and the N is the repetition period of the radio frame or the half frame where the special sub-frame structure is located, and the M is 0 or positive. Integer.

Preferably, the at least two special subframe structures are dynamically configured, and the transceiver 601 is specifically configured to: before sending the special subframe, send signaling to the terminal, where the signaling carries the current wireless information. Configuration information of a special subframe structure used by a frame, a current frame, a set of radio frames, or a group of subframes, the signaling being physical layer control signaling, media access control signaling, or radio resource control Protocol signaling.

Preferably, the transceiver 601 is specifically configured to: if the signaling is the physical layer control signaling, send the physical layer control signal to the terminal in a first subframe of the radio frame or the half frame make.

The base station provided by the embodiment of the present invention can configure different special subframe frames for different radio frames or half frames according to communication requirements, thereby improving the flexibility of the special subframe configuration.

For a specific implementation manner of the base station, reference may be made to the description of the foregoing base station embodiment, and details are not described herein again.

Based on the same inventive concept as the method, the embodiment of the present invention further provides a terminal. The terminal shown in FIG. 7 includes: a transceiver 701, a processor 702, and a memory 703. The transceiver 701 is configured to receive a base station. Configuration information of at least two special subframe frames sent, at least one special subframe structure in the configured special subframe structure The guard interval length is different from the guard interval length of the remaining special subframe structure, and the at least two special subframe structures are configured in different radio frames or semi-frames; the processor 702 is configured One or more executable programs for performing the following method: determining a special subframe structure used by different radio frames or frames according to the received configuration information; the memory 703, for storing one or more executable programs, used to configure the processor 702.

Preferably, the transceiver 701 is configured to: receive a system broadcast message sent by the base station, where the system broadcast message carries configuration information of the at least two special subframe structures, where the system broadcast message further carries the Information about the radio frame or frame of the part or all of the special subframe structure in at least two special subframe structures.

Preferably, the at least two special subframe configurations include: a special subframe structure used by the base station to perform radio frame or semi-frame monitoring between the base stations, and the base station does not need to perform a base. The special subframe structure used by the radio frame or the half frame of the inter-station air interface monitoring needs to be used for the radio frame or the half frame of the inter-base station to monitor the interval of the special subframe structure. The guard interval length of the special subframe structure used by the radio frame or the half frame for the air interface monitoring between the base stations.

Preferably, the information of the radio frame or the half frame of the special subframe structure carried in the broadcast message of the system is the N corresponding to the special subframe structure or the N and M corresponding to the special subframe structure. Wherein, the N, M and the radio frame or half where the special subframe structure is located The number of the frame has the following correspondence: FN mod N=M

The FN is the number of the radio frame or the half frame where the special sub-frame structure is located, and the N is the repetition period of the radio frame or the half frame where the special sub-frame structure is located, and the M is 0 or positive. Integer.

Preferably, the processor 702 is configured to determine, according to the N and M corresponding to the special subframe structure, the number of the radio frame or the half frame corresponding to the special subframe structure, if the system broadcasts the message The radio frame or half frame information of the special sub-frame structure is only N, then M is the agreed value; according to the configuration information of the special sub-frame structure, the special subframe of the radio frame or the half frame is determined. structure.

Preferably, the transceiver 701 is configured to: before receiving the special subframe, receive the signaling sent by the base station, where the signaling carries the current radio frame, the current frame, and a group of radio frames. Or configuration information of a special subframe structure used by a group of subframes, where the signaling is physical layer control signaling, medium access control signaling, or radio resource control protocol signaling.

Preferably, the transceiver 701 is specifically configured to: if the signaling is the physical layer control signaling, receive the physical layer sent by the base station in a first subframe of a radio frame or a subframe Control signaling.

In the terminal provided by the embodiment of the present invention, after the base station configures different special subframe frames for different radio frames or half frames, the terminal can learn the special subframes configured for different radio frames or half frames. Structure to communicate with the base station.

For a specific implementation manner of the terminal, refer to the description of the foregoing terminal embodiment, and details are not described herein again.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Thus, the present invention can take the form of a fully hardware embodiment, a fully software embodiment, or an embodiment combining soft and hardware aspects. Moreover, the present invention can take the form of a computer program product embodied on one or more computer usable storage media (including but not limited to disk memory, CD-ROM, optical memory, etc.) including computer usable code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus, and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, a special purpose computer, an embedded processor or other programmable data processing device to produce a machine for generating instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

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

These computer program instructions can also be loaded onto a computer or other programmable data processing device to perform a series of operational steps on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. Instructions are provided for implementation at Flowchart The steps of a process or a plurality of processes and/or block diagrams of a function specified in a block or blocks.

The detailed description of the preferred embodiments of the present invention is intended to be limited to the scope of the invention, and is not intended to limit the scope of the invention. The patent scope of this case.

To sum up, the technical features disclosed in this case have fully complied with the statutory invention patent requirements of novelty and progressiveness. If you apply in accordance with the law, you are requested to approve the application for the invention patent to encourage invention.

100-110‧‧‧Steps

Claims (39)

A communication method, comprising: configuring at least two special subframe structures, wherein, in the configured special subframe structure, the guard interval length of at least one special subframe structure and the rest of the special subframe structure The guard interval lengths are different, and the at least two special subframe structures are configured in different radio frames or semi-frames; and the configuration information of the at least two special subframe structures is sent to the terminal. The communication method of claim 1, wherein the at least two special subframe structures are configured, including: a radio frame or a half frame for performing air interface monitoring between the base stations, and an air interface between the base stations is not required. The radio frame or the half frame of the monitor is configured with a special subframe structure, and the guard subframe length of the special subframe structure used for the radio frame or the half frame of the inter-base station air interface monitoring is larger than that required for the base station. The guard interval length of the special subframe structure used by the radio frame or frame for air interface monitoring. The communication method of claim 1 or 2, wherein the at least two special subframe structures are statically or semi-statically configured, and the configuration information of the at least two special subframe structures is sent to the terminal, including: The system broadcast message sends the configuration information of the at least two special subframe structures to the terminal, where the system broadcast message further carries the wireless of some or all of the special subframe components in the at least two special subframe configurations. Information about the frame or frame. The communication method as claimed in claim 3, wherein the wireless frame or the half frame of the special subframe structure carried in the system broadcast message The information is N corresponding to the special subframe structure or N and M corresponding to the special subframe structure, wherein the numbers of the radio frame or the half frame where the N, M and the special subframe structure are located are as follows Correspondence relationship: FN mod N=M, where the FN is the number of the radio frame or the half frame where the special sub-frame structure is located, and the N is the repetition of the radio frame or the half frame of the special sub-frame structure. Cycle, the M is 0 or a positive integer. The communication method of claim 1 or 2, wherein the at least two special subframe structures are dynamically configured, and the configuration information of the at least two special subframe structures is sent to the terminal, including: sending a special Before the subframe, sending signaling to the terminal, where the signaling carries configuration information of a special subframe structure used by the current radio frame, the current frame, a set of radio frames, or a group of subframes. The signaling is physical layer control signaling, media access control signaling, or radio resource control protocol signaling. The communication method of claim 5, wherein the transmitting the signaling to the terminal before transmitting the special subframe includes: sending the terminal to the terminal in a first subframe of the radio frame or the half frame The physical layer controls signaling. A communication method, comprising: receiving configuration information of at least two special subframe structures sent by a base station, and configuring a guard interval length of at least one special subframe structure in the configured special subframe structure and remaining The guard interval length of the special subframe frame structure is different, and the at least two special subframe frames are configured Set in different radio frames or semi-frames; determine the special sub-frame structure used by different radio frames or frames according to the received configuration information. The communication method of claim 7, wherein the at least two special subframe configurations comprise: a special subframe structure used by the base station to perform radio frame or frame for inter-base station air interface monitoring, And the special subframe structure used by the base station for the radio frame or the half frame for the air interface monitoring between the base stations, and the special subframe used for the radio frame or the half frame for the air interface monitoring between the base stations The guard interval length of the frame structure is greater than the guard interval length of the special subframe structure used by the radio frame or the half frame that does not need to perform the inter-base station air interface monitoring. The communication method of claim 7 or 8, wherein the configuration information of the at least two special subframe structures sent by the receiving base station comprises: receiving a system broadcast message sent by the base station, where the system broadcast message carries The configuration information of the at least two special subframe structures, wherein the system broadcast message further carries information about the radio frame or the half frame of the part or all of the special subframe frames in the at least two special subframe structures. . The communication method of claim 9, wherein the information of the radio frame or the half frame of the special subframe structure carried in the system broadcast message is the N corresponding to the special subframe structure or the special subframe. N and M corresponding to the frame structure, wherein the N, M and the number of the radio frame or the half frame of the special subframe structure have the following correspondence: FN mod N=M The FN is the number of the radio frame or the half frame where the special sub-frame structure is located, and the N is the repetition period of the radio frame or the half frame where the special sub-frame structure is located, and the M is 0 or positive. Integer. The communication method of claim 10, wherein the special subframe structure of the radio frame or the half frame is configured according to the received configuration information of the at least two special subframe structures, including: according to the special The N and M corresponding to the subframe structure determine the number of the radio frame or the half frame corresponding to the special subframe structure, if the radio frame or frame of the special subframe structure carried in the system broadcast message is located. The information is only N, then M is the agreed value; according to the configuration information of the special subframe structure, the special subframe structure of the radio frame or the half frame is determined. The communication method of claim 7 or 8, wherein the configuration information of the at least two special subframe structures sent by the receiving base station comprises: receiving the signaling sent by the base station before receiving the special subframe The signaling carries configuration information of a special subframe structure used by the current radio frame, the current frame, a set of radio frames, or a group of subframes, and the signaling is physical layer control signaling and media. Access control signaling or radio resource control protocol signaling. The communication method of claim 12, wherein receiving the signaling sent by the base station before receiving the special subframe includes: receiving the first subframe in the radio frame or the half frame The physical layer control signaling sent by the base station. A base station, comprising: The special subframe configuration module is configured to configure at least two special subframe structures. In the configured special subframe structure, the guard interval length of at least one special subframe structure and the rest of the special subframe structure are The guard interval lengths are different, and the at least two special subframe frames are configured in different radio frames or semi-frames. The information sending module is configured to send the at least two special subframe structures to the terminal. Configuration information. The base station according to claim 14, wherein the special subframe configuration module is specifically configured to: respectively, a radio frame or a half frame that needs to perform air interface monitoring between the base stations, and does not need to perform air monitoring between the base stations. The special subframe structure of the radio frame or the half frame is required, and the special subframe structure used for the radio frame or the half frame of the inter-base station air interface monitoring has a longer guard interval length than the inter-base station air interface. The guard interval length of the special subframe structure used by the monitored radio frame or frame. The base station according to claim 14 or 15, wherein the at least two special subframe structures are statically or semi-statically configured, and the configuration information sending module is specifically configured to send the terminal to the terminal by using a system broadcast message. The configuration information of the at least two special sub-frame structures, the system broadcast message also carries information of the radio frame or the half frame of the part or all of the special sub-frame structures in the at least two special sub-frame structures. The base station according to claim 16, wherein the information of the radio frame or the half frame of the special subframe structure carried in the system broadcast message is the N corresponding to the special subframe structure or the special subframe. N and M corresponding to the frame structure, wherein the N, M and the number of the radio frame or the half frame of the special subframe structure have the following correspondence: FN mod N=M, where the FN is the number of the radio frame or the half frame where the special sub-frame structure is located, and the N is the repetition period of the radio frame or the half frame where the special sub-frame structure is located, M is 0 or a positive integer. The base station according to claim 14 or 15, wherein the at least two special subframe configurations are dynamically configured, and the configuration information sending module is specifically configured to send to the terminal before sending the special subframe Signaling, the signaling carries configuration information of a special subframe structure used by the current radio frame, the current frame, a group of radio frames, or a group of subframes, and the signaling is physical layer control signaling. Medium access control signaling or radio resource control protocol signaling. The base station according to claim 18, wherein the configuration information sending module is specifically configured to: send the physical layer control signaling to the terminal on a first subframe of the radio frame or the half frame. A terminal, comprising: a configuration information receiving module, configured to receive configuration information of at least two special subframe structures sent by a base station, and at least one special subframe structure in the configured special subframe structure The guard interval length is different from the guard interval length of the remaining special subframe structure, and the at least two special subframe structures are configured in different radio frames or semi-frames; the special subframe structure determines the mode. A group, configured to determine a special subframe structure used by different radio frames or half frames according to the received configuration information. The terminal according to claim 20, wherein the at least two special subframe configurations comprise: a special frame used by the base station for performing air interface monitoring between the base stations The special subframe structure and the special subframe structure used by the base station for the radio frame or the half frame that does not need to perform the air interface monitoring between the base stations, and the radio frame or the half frame for the air interface monitoring between the base stations is required. The guard interval length of the special subframe structure used is greater than the guard interval length of the special subframe structure used by the radio frame or the half frame that does not require inter-base station air interface monitoring. The terminal according to claim 20 or 21, wherein the configuration information receiving module is specifically configured to: receive a system broadcast message sent by the base station, where the system broadcast message carries the configuration of the at least two special subframe structures Information, the system broadcast message also carries information about the radio frame or the half frame of the part or all of the special sub-frame structures in the at least two special subframe structures. The terminal of claim 22, wherein the information of the radio frame or the half frame of the special subframe structure carried in the system broadcast message is the N corresponding to the special subframe structure or the special subframe. The N and M corresponding to the structure, wherein the N, M and the number of the radio frame or the half frame of the special subframe structure have the following correspondence relationship: FN mod N=M, wherein the FN is the special sub-signal The number of the radio frame or the half frame where the frame structure is located. The N is the repetition period of the radio frame or the half frame where the special sub frame structure is located. The M is 0 or a positive integer. The terminal according to claim 23, wherein the special subframe structure determining module is specifically configured to: determine, according to N and M corresponding to the special subframe structure, a radio frame or a half message corresponding to the special subframe structure. The number of the box, if the special subframe structure carried in the system broadcast message The information of the radio frame or the half frame is only N, then M is the agreed value; according to the configuration information of the special subframe structure, the special subframe structure of the radio frame or the half frame is determined. The terminal according to claim 20 or 21, wherein the configuration information receiving module is configured to: before receiving the special subframe, receive the signaling sent by the base station, where the signaling carries the current wireless frame, Configuration information of a special subframe structure used by a current frame, a set of radio frames, or a group of subframes, the signaling being physical layer control signaling, media access control signaling, or radio resource control protocol make. The terminal according to claim 25, wherein the configuration information receiving module is configured to: receive the physical layer control signaling sent by the base station in a first subframe of the radio frame or the half frame. A base station, comprising: a transceiver, a processor, and a memory, the processor being configured with one or more executable programs, the one or more executable programs for performing the following method: configuring At least two special subframe structures, in the special subframe structure of the configuration, the guard interval length of the at least one special subframe structure is different from the guard interval length of the remaining special subframe structures, and the at least two The special subframe structure is configured in different radio frames or semi-frames; the transceiver is configured to send configuration information of the at least two special sub-frame structures to the terminal; the memory is configured to store one Or multiple executables that are used to configure the processor. The base station according to claim 27, wherein the processor is specifically configured to: respectively: a radio frame or a half frame that needs to perform air interface monitoring between the base stations, and does not need to enter The special subframe frame structure is configured for the radio frame or the half frame of the air interface monitoring between the base stations, and the protection interval length of the special subframe structure used for the radio frame or the half frame of the air interface monitoring between the base stations is greater than The guard interval length of the special subframe structure used by the radio frame or the half frame for the air interface monitoring between the base stations. The base station according to claim 27 or 28, wherein the at least two special subframe structures are statically or semi-statically configured, and the transceiver is specifically configured to: send the at least two to the terminal by using a system broadcast message The configuration information of the special subframe structure, the system broadcast message also carries the information of the radio frame or the half frame of the part or all of the special subframe structure in the at least two special subframe structures. The base station according to claim 29, wherein the information of the radio frame or the half frame of the special subframe structure carried in the broadcast message of the system is the N corresponding to the special subframe structure or the special subframe. N and M corresponding to the frame structure, wherein the N, M and the number of the radio frame or the half frame of the special subframe structure have the following correspondence relationship: FN mod N=M, wherein the FN is the special sub The number of the radio frame or the half frame where the frame structure is located. The N is the repetition period of the radio frame or the half frame where the special sub frame structure is located. The M is 0 or a positive integer. The base station according to claim 27 or 28, wherein the at least two special subframe structures are dynamically configured, and the transceiver is specifically configured to: send signaling to the terminal before sending the special subframe The signaling carries configuration information of a special subframe structure used by the current radio frame, the current frame, a set of radio frames, or a group of subframes, and the signaling is physical layer control signaling and media. Access control signaling or wireless Resource Control Protocol Signaling. The base station of claim 31, wherein the transceiver is specifically configured to: if the signaling is the physical layer control signaling, on the first subframe of the radio frame or the half frame The terminal sends the physical layer control signaling. A terminal, comprising: a transceiver, a processor, and a memory, wherein the transceiver is configured to receive configuration information of at least two special subframe configurations sent by the base station, where the configured special subframe The guard interval length of the at least one special subframe structure in the structure is different from the guard interval length of the remaining special subframe structures, and the at least two special subframe structures are configured in different radio frames or frames. The processor is configured with one or more executable programs for performing the following methods: determining the special used by different radio frames or frames according to the received configuration information. Subframe structure; the memory for storing one or more executable programs, which are used to configure the processor. The terminal according to claim 33, wherein the at least two special subframe configurations include: a special subframe structure used by the base station to perform radio frame or frame for inter-base station air interface monitoring, and The base station does not need to perform a special subframe structure used for the radio frame or the half frame of the air interface monitoring between the base stations, and needs to perform a special subframe for the radio frame or the half frame of the air interface monitoring between the base stations. The guard interval length of the structure is greater than the guard interval length of the special subframe structure used by the radio frame or the half frame that does not require inter-base station air interface monitoring. The terminal according to claim 33 or 34, wherein the transceiver is specifically configured to: receive a system broadcast message sent by the base station, where the system broadcast message carries the at least two The configuration information of the special subframe structure, the system broadcast message also carries the information of the radio frame or the half frame of the part or all of the special subframe structure in the at least two special subframe structures. The terminal of claim 35, wherein the information of the radio frame or the half frame of the special subframe structure carried in the system broadcast message is the N corresponding to the special subframe structure or the special subframe. The N and M corresponding to the structure, wherein the N, M and the number of the radio frame or the half frame of the special subframe structure have the following correspondence relationship: FN mod N=M, wherein the FN is the special sub-signal The number of the radio frame or the half frame where the frame structure is located. The N is the repetition period of the radio frame or the half frame where the special sub frame structure is located. The M is 0 or a positive integer. The terminal according to claim 36, wherein the processor is specifically configured to: determine, according to N and M corresponding to the special subframe structure, a number of the radio frame or the half frame corresponding to the special subframe structure, if The radio frame or frame information of the special subframe frame carried in the system broadcast message is only N, then M is the agreed value; according to the configuration information of the special subframe structure, the radio frame or the semi-message is determined. The special subframe structure of the box. The terminal according to claim 33, wherein the transmitter is specifically configured to: before receiving the special subframe, receive the signaling sent by the base station, where the signaling carries the current radio frame and the current frame Configuration information of a special subframe structure used by a set of radio frames or a set of subframes, the signaling being physical layer control signaling, medium access control signaling, or radio resource control protocol signaling. The terminal according to claim 38, wherein the transceiver is specifically configured to: if the signaling is the physical layer control signaling, receive the base in a first subframe of a radio frame or a half frame The physical layer control signaling sent by the station.