CN104185282B - Data receiving-transmitting method, via node and base station - Google Patents

Abstract

An embodiment of the present invention provides a method for transmitting and receiving data, a relay node, and a base station, wherein the method includes: the relay node uses the first subframe configuration type to interact with the host base station for data transmission and reception; the relay node uses The second subframe configuration type interacts with the user equipment for data transmission and reception; wherein, the first subframe configuration type is different from the second subframe configuration type. The data sending and receiving method, the relay node and the base station provided by the embodiments of the present invention realize the function of the relay node sending and receiving uplink and downlink data at the same time, and improve the utilization rate of system spectrum resources.

Description

Data transceiving method, relay node and base station

technical field

Embodiments of the present invention relate to communication technologies, and in particular to a method for transmitting and receiving data, a relay node, and a base station.

Background technique

In order to improve the user data transmission rate, expand the cell coverage area and solve the blind spot coverage, the 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE for short) technology was introduced in version 10 With the addition of relay (Relay) technology and its basic system architecture and functions, relay technology has become one of the key technologies of Time Division Long Term Evolution-Advanced (TD-LTE-A for short).

The relay technology refers to the introduction of a relay node (Relay Node, RN) between the user equipment (User Equipment, referred to as UE) and the base station. The RN realizes the data forwarding between the UE and the base station through time-division multiplexing. The data link between the RN is divided into two parts: the access link and the backhaul link. The base station that establishes a wireless connection with the RN is called the Donor evolution NodeB (DeNB for short), and the air interface link between the DeNB and the RN The air interface link between the RN and the UE is an access link, and the access link and the backhaul link use the same frequency band.

However, the existing data transmission mode leads to a low utilization rate of system spectrum resources.

Contents of the invention

Embodiments of the present invention provide a method for transmitting and receiving data, a relay node, and a base station, so that the relay node can simultaneously transmit and receive uplink and downlink data.

In a first aspect, an embodiment of the present invention provides a method for sending and receiving data, the method including:

The RN uses the first subframe configuration type to interact with the DeNB for data transmission and reception;

The RN uses the second subframe configuration type to interact with the UE for data transmission and reception;

Wherein, the first subframe configuration type is different from the second subframe configuration type.

In a first possible implementation manner of the first aspect, the RN uses the first subframe configuration type, and before interacting with the DeNB for data transmission and reception, further includes: the RN determines to enable the function of the RN to simultaneously transmit and receive uplink and downlink data.

According to the first possible implementation of the first aspect, in the second possible implementation, the RN determines to enable the function of the RN to simultaneously send and receive uplink and downlink data, including:

When the RN turns on the relay function, turns on the function of the RN to send and receive uplink and downlink data at the same time; or,

After the RN enables the relay function, according to the network state information, it is determined to enable the RN to simultaneously transmit and receive uplink and downlink data functions; or,

After enabling the relay function, the RN enables the RN to simultaneously transmit and receive uplink and downlink data according to the instruction sent by the DeNB to enable the RN to simultaneously transmit and receive uplink and downlink data.

According to the first or second possible implementation of the first aspect, in a third possible implementation, the RN adopts the first subframe configuration type, and before interacting with the DeNB for data transmission and reception, further includes: The RN sends a first notification message to the DeNB, the first notification message includes an instruction to enable the function of the RN to simultaneously send and receive uplink and downlink data, and the RN receives the first packet sent by the DeNB according to the instruction. a frame configuration type and the second subframe configuration type;

Correspondingly, the RN adopts the second subframe configuration type, and before interacting with the UE for data transmission and reception, further includes: the RN sends a second notification message to the UE, and the second notification message includes the first Two subframe configuration types, so that the UE adopts the second subframe configuration type to interact with the RN for data transmission and reception;

or,

The RN adopts the first subframe configuration type, and before interacting with the DeNB for data transmission and reception, it also includes: the RN sends a third notification message to the DeNB, and the third notification message includes enabling the RN to simultaneously transmit and receive uplink and downlink an indication of a data function, and the configuration type of the first subframe;

Correspondingly, the RN adopts the second subframe configuration type, and before interacting with the UE for data transmission and reception, further includes: the RN sends a fourth notification message to the UE, and the fourth notification message includes the first Two subframe configuration types, so that the UE adopts the second subframe configuration type to interact with the RN for data transmission and reception;

or,

The RN adopts the first subframe configuration type, and before interacting with the DeNB for data transmission and reception, the RN further includes: the RN receives a fifth notification message sent by the DeNB, and the fifth notification message includes the information sent by the DeNB Enable the indication of the function of RN to simultaneously transmit and receive uplink and downlink data, and the first subframe configuration type and the second subframe configuration type;

Correspondingly, the RN adopts the second subframe configuration type, and before interacting with the UE for data transmission and reception, further includes: the RN sends a sixth notification message to the UE, and the sixth notification message includes the first Two subframe configuration types, so that the UE adopts the second subframe configuration type to interact with the RN for data transmission and reception.

According to the third possible implementation manner of the first aspect, in the fourth possible implementation manner, before the RN sends the third notification message to the DeNB, it further includes: the RN, according to the initial subframe configuration type, Determine the first subframe configuration type and the second subframe configuration type.

According to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner, the RN determines the first subframe configuration type and the second subframe configuration type according to the initial subframe configuration type types, including:

The RN determines that the initial subframe configuration type is used as the second subframe configuration type; and, the RN determines a candidate subframe configuration type according to the initial subframe configuration type, and uses the second subframe configuration type as a reference The subframe configuration type is to modify the subframe configuration type to be modified according to the modification method of the subframe configuration type, and determine the first subframe configuration type, wherein the subframe configuration type to be modified is the candidate subframe configuration type ;

or,

The RN determines that the initial subframe configuration type is used as the first subframe configuration type; and, the RN determines a candidate subframe configuration type according to the initial subframe configuration type, using the first subframe configuration type as a reference The subframe configuration type is to modify the subframe configuration type to be modified according to the modification method of the subframe configuration type, and determine the second subframe configuration type, wherein the subframe configuration type to be modified is the candidate subframe configuration type ;

or,

The RN determines a candidate subframe configuration type according to the initial subframe configuration type, and uses the candidate subframe configuration type as the second subframe configuration type; and the RN uses the second subframe configuration type To refer to the subframe configuration type, modify the subframe configuration type to be modified according to the modification method of the subframe configuration type, and determine the first subframe configuration type, wherein the subframe configuration type to be modified is the initial subframe configuration type.

According to the fifth possible implementation of the first aspect, in the sixth possible implementation, the RN determines the candidate subframe configuration type according to the initial subframe configuration type, including: the RN configures the initial subframe configuration The type of downlink transmission subframe and the uplink transmission subframe are swapped, the special subframe of the initial subframe configuration type is left blank, and the candidate subframe configuration type is determined according to the standard subframe configuration type list; or,

The RN swaps the uplink and downlink subframes of the initial subframe configuration type, sets a special subframe between the downlink transmission subframe and the uplink transmission subframe conversion, and converts the special subframe of the initial subframe configuration type into The uplink transmission subframe or the downlink transmission subframe determines the configuration type of the candidate subframe.

According to the fifth possible implementation of the first aspect, in the seventh possible implementation, the modification of the subframe configuration type includes:

Perform silent muting processing on the part of the subframe configuration type to be modified that conflicts with the reference subframe configuration type or the conflicting subframes; or,

Modifying the subframes in the to-be-modified subframe configuration type that conflict with the reference subframe configuration type to subframes that do not conflict with the reference subframe configuration type.

According to the fourth possible implementation manner of the first aspect, in an eighth possible implementation manner, the RN determines the first subframe configuration type and the second subframe configuration type according to the initial subframe configuration type types, including:

The RN determines that an initial subframe configuration type is used as the first subframe configuration type; and, searches a mapping table for the second subframe configuration type corresponding to the initial subframe configuration type;

or,

The RN determines that an initial subframe configuration type is used as the second subframe configuration type; and, searches a mapping table for the first subframe configuration type corresponding to the initial subframe configuration type;

or,

The RN looks up the first subframe configuration type and the second subframe configuration type in a mapping table.

According to the first aspect or any one of the first to eighth possible implementations of the first aspect, in a ninth possible implementation, the RN adopts the first subframe configuration type to communicate with the DeNB for data The interaction of sending and receiving includes: the RN adopts the first subframe configuration type when the preset application time arrives, and performs data sending and receiving interaction with the DeNB;

The RN uses the second subframe configuration type to interact with the UE for data transmission and reception, including: the RN adopts the second subframe configuration type when the preset application time arrives, and performs data transmission with the UE Sending and receiving interactions.

According to any one of the third to eighth possible implementations of the first aspect, in the tenth possible implementation, the first notification message, the third notification message or the fifth notification message further includes Subframe configuration type application time;

The RN adopts the first subframe configuration type, and interacts with the DeNB for data transmission and reception, including: the RN adopts the first subframe configuration type when the application time of the subframe configuration type arrives, and communicates with the DeNB Interact with data sending and receiving;

The second notification message, the fourth notification message or the sixth notification message also includes the application time of the subframe configuration type;

The RN uses the second subframe configuration type to interact with the UE for data transmission and reception, including: the RN adopts the second subframe configuration type to communicate with the UE when the application time of the subframe configuration type arrives. Interact with sending and receiving data.

In the second aspect, the embodiment of the present invention provides a data sending and receiving method, the method includes: the host node DeNB determines to enable the relay node RN to simultaneously send and receive uplink and downlink data functions; the DeNB uses the first subframe configuration type, and the RN Interact with sending and receiving data.

In the first possible implementation of the second aspect, the DeNB determines to enable the function of the RN to simultaneously send and receive uplink and downlink data, including:

After the RN enables the relay function, the DeNB determines to enable the RN to simultaneously transmit and receive uplink and downlink data according to the network state information; or,

The DeNB determines to enable the function of the RN to simultaneously transmit and receive uplink and downlink data according to the instruction sent by the RN to enable the function of the RN to simultaneously transmit and receive uplink and downlink data.

According to the first possible implementation of the second aspect, in the second possible implementation, the DeNB adopts the first subframe configuration type, and before interacting with the RN for data transmission and reception, further includes:

The DeNB receives the first notification message sent by the RN, the first notification message includes an instruction to enable the RN to simultaneously send and receive uplink and downlink data, and the DeNB sends the first notification message to the RN according to the instruction. a subframe configuration type and the second subframe configuration type;

or,

The DeNB receives a third notification message sent by the RN, and the third notification message includes an indication of enabling the RN to simultaneously send and receive uplink and downlink data, and the first subframe configuration type;

or,

The DeNB sends a fifth notification message to the RN, and the fifth notification message includes an instruction to enable the function of the RN to simultaneously transmit and receive uplink and downlink data, and the first subframe configuration type and the second subframe configuration type.

According to the second possible implementation manner of the second aspect, in the third possible implementation manner, before the DeNB sends the fifth notification message to the RN, it further includes: the DeNB according to the initial subframe configuration type, Determine the first subframe configuration type and the second subframe configuration type.

According to the third possible implementation manner of the second aspect, in a fourth possible implementation manner, the DeNB determines the first subframe configuration type and the second subframe configuration type according to the initial subframe configuration type types, including:

The DeNB determines to adopt the initial subframe configuration type as the second subframe configuration type; and, the DeNB determines a candidate subframe configuration type according to the initial subframe configuration type, taking the second subframe configuration type as a reference The subframe configuration type is to modify the subframe configuration type to be modified according to the modification method of the subframe configuration type, and determine the first subframe configuration type, wherein the subframe configuration type to be modified is the candidate subframe configuration type ;

or,

The DeNB determines to adopt the initial subframe configuration type as the first subframe configuration type; and, the DeNB determines a candidate subframe configuration type according to the initial subframe configuration type, taking the first subframe configuration type as a reference The subframe configuration type is to modify the subframe configuration type to be modified according to the modification method of the subframe configuration type, and determine the second subframe configuration type, wherein the subframe configuration type to be modified is the candidate subframe configuration type ;

or,

The DeNB determines a candidate subframe configuration type according to the initial subframe configuration type, and uses the candidate subframe configuration type as the second subframe configuration type; and the DeNB uses the second subframe configuration type To refer to the subframe configuration type, modify the subframe configuration type to be modified according to the modification method of the subframe configuration type, and determine the first subframe configuration type, wherein the subframe configuration type to be modified is the initial subframe configuration type.

According to the fourth possible implementation of the second aspect, in the fifth possible implementation, the DeNB determines the candidate subframe configuration type according to the initial subframe configuration type, including:

The DeNB swaps the downlink transmission subframe and the uplink transmission subframe of the initial subframe configuration type, leaves the special subframe of the initial subframe configuration type blank, and determines the candidate subframe according to the standard subframe configuration type list frame configuration type; or,

The DeNB swaps the uplink and downlink subframes of the initial subframe configuration type, sets a special subframe between the downlink transmission subframe and the uplink transmission subframe conversion, and converts the special subframe of the initial subframe configuration type into The uplink transmission subframe or the downlink transmission subframe determines the configuration type of the candidate subframe.

According to the fourth possible implementation of the second aspect, in the sixth possible implementation, the modification of the subframe configuration type includes:

Perform silent muting processing on the part of the subframe configuration type to be modified that conflicts with the reference subframe configuration type or the conflicting subframes; or,

Modifying the subframes in the to-be-modified subframe configuration type that conflict with the reference subframe configuration type to subframes that do not conflict with the reference subframe configuration type.

According to the third possible implementation manner of the second aspect, in a seventh possible implementation manner, the DeNB determines the first subframe configuration type and the second subframe configuration type according to the initial subframe configuration type types, including:

The DeNB determines to adopt the initial subframe configuration type as the first subframe configuration type; and, searches the mapping table for the second subframe configuration type corresponding to the initial subframe configuration type;

or,

The DeNB determines to adopt the initial subframe configuration type as the second subframe configuration type; and searches the mapping table for the first subframe configuration type corresponding to the initial subframe configuration type;

or,

The DeNB looks up the first subframe configuration type and the second subframe configuration type in a mapping table.

According to the second aspect and the first to seventh possible implementations of the second aspect, in an eighth possible implementation, the DeNB adopts the first subframe configuration type, and transmits and receives data with the RN The interaction includes: the DeNB adopts the first subframe configuration type when the preset application time arrives, and performs data transceiving interaction with the RN.

According to the third to seventh possible implementations of the second aspect, in a ninth possible implementation, the first notification message, the third notification message or the fifth notification message further includes the subframe configuration type application time;

The DeNB adopts the first subframe configuration type, and interacts with the RN for data transmission and reception, including: the DeNB adopts the first subframe configuration type when the application time of the subframe configuration type arrives, and communicates with the RN The RN performs data sending and receiving interaction.

In a third aspect, an embodiment of the present invention provides a relay node, which includes: a first processing module, configured to use a first subframe configuration type to interact with a donor node DeNB for data transmission and reception; a second processing module , configured to use the second subframe configuration type to perform data transceiving interaction with the user equipment UE; wherein, the first subframe configuration type is different from the second subframe configuration type.

In the first possible implementation manner of the third aspect, it further includes: a determining module, configured to determine to enable the relay before the first processing module uses the first subframe configuration type to interact with the DeNB for data transmission and reception Node RN simultaneously transmits and receives uplink and downlink data.

According to the first possible implementation of the third aspect, in the second possible implementation, the determining module is specifically configured to:

When the relay function is turned on, turn on the function of RN to send and receive uplink and downlink data at the same time; or,

After the relay function is enabled, according to the network status information, it is determined to enable the function of the RN to send and receive uplink and downlink data at the same time; or,

After the relay function is turned on, according to the instruction sent by the DeNB to turn on the function of sending and receiving uplink and downlink data simultaneously to the RN, turn on the function of the RN to send and receive uplink and downlink data simultaneously.

According to the first or second possible implementation of the third aspect, in a third possible implementation, the first processing module is further configured to send a first notification message to the DeNB, and the first A notification message includes an instruction to enable the RN to simultaneously transmit and receive uplink and downlink data functions, and receive the first subframe configuration type and the second subframe configuration type sent by the DeNB according to the instruction;

Correspondingly, the second processing module is further configured to send a second notification message to the UE, where the second notification message includes the second subframe configuration type, so that the UE adopts the second subframe configuration type configuration type, interacting with the RN for data transmission and reception;

or,

The first processing module is further configured to send a third notification message to the DeNB, where the third notification message includes an instruction to enable the function of RN to simultaneously send and receive uplink and downlink data, and the first subframe configuration type;

Correspondingly, the second processing module is further configured to send a fourth notification message to the UE, where the fourth notification message includes the second subframe configuration type, so that the UE adopts the second subframe configuration type configuration type, interacting with the RN for data transmission and reception;

or,

The first processing module is further configured to receive a fifth notification message sent by the DeNB, where the fifth notification message includes an instruction sent by the DeNB to enable the function of RN to simultaneously send and receive uplink and downlink data, and the first a subframe configuration type and a second subframe configuration type;

Correspondingly, the second processing module is further configured to send a sixth notification message to the UE, where the sixth notification message includes the second subframe configuration type, so that the UE adopts the second subframe configuration type Configuration type, to interact with the RN to send and receive data.

According to the third possible implementation manner of the third aspect, in the fourth possible implementation manner, it further includes: a configuration module, configured to, before the first processing module sends the third notification message to the DeNB, according to the initial The subframe configuration type is to determine the first subframe configuration type and the second subframe configuration type.

According to a fourth possible implementation manner of the third aspect, in a fifth possible implementation manner, the configuration module is specifically configured to: determine to adopt an initial subframe configuration type as the second subframe configuration type; and , according to the initial subframe configuration type, determine the candidate subframe configuration type, use the second subframe configuration type as the reference subframe configuration type, modify the subframe configuration type to be modified according to the subframe configuration type modification method, and determine the The first subframe configuration type, wherein the subframe configuration type to be modified is the candidate subframe configuration type;

or,

The configuration module is specifically configured to: determine that an initial subframe configuration type is used as the first subframe configuration type; and, according to the initial subframe configuration type, determine a candidate subframe configuration type, and use the first subframe configuration type The type is a reference subframe configuration type. According to the modification method of the subframe configuration type, the subframe configuration type to be modified is modified to determine the second subframe configuration type, wherein the subframe configuration type to be modified is the candidate subframe configuration type frame configuration type;

or,

The configuration module is specifically configured to: determine a candidate subframe configuration type according to the initial subframe configuration type, and use the candidate subframe configuration type as the second subframe configuration type; and, use the second subframe configuration type The frame configuration type is a reference subframe configuration type. According to the modification method of the subframe configuration type, the subframe configuration type to be modified is modified to determine the first subframe configuration type, wherein the subframe configuration type to be modified is the Initial subframe configuration type.

According to the fifth possible implementation of the third aspect, in the sixth possible implementation, the configuration module is specifically configured to swap the downlink transmission subframe and the uplink transmission subframe of the initial subframe configuration type , leaving the special subframe of the initial subframe configuration type blank, and determining the candidate subframe configuration type according to the standard subframe configuration type list; or,

The configuration module is specifically used to swap the uplink and downlink subframes of the initial subframe configuration type, set a special subframe between the downlink transmission subframe and the uplink transmission subframe conversion, and set the initial subframe configuration type The special subframe is transformed into an uplink transmission subframe or a downlink transmission subframe, and the configuration type of the candidate subframe is determined.

According to the fifth possible implementation of the third aspect, in the seventh possible implementation, the modification of the subframe configuration type includes:

Perform silent muting processing on the part of the subframe configuration type to be modified that conflicts with the reference subframe configuration type or the conflicting subframes; or,

Modifying the subframes in the to-be-modified subframe configuration type that conflict with the reference subframe configuration type to subframes that do not conflict with the reference subframe configuration type.

According to a fourth possible implementation of the third aspect, in an eighth possible implementation, the configuration module is specifically configured to:

Determining that an initial subframe configuration type is used as the first subframe configuration type; and searching a mapping table for the second subframe configuration type corresponding to the initial subframe configuration type;

or,

The configuration module is specifically configured to: determine that an initial subframe configuration type is used as the second subframe configuration type; and search a mapping table for the first subframe configuration corresponding to the initial subframe configuration type Types of;

or,

The configuration module is specifically configured to: look up the first subframe configuration type and the second subframe configuration type in a mapping table.

According to the third aspect, or any one of the first to eighth possible implementations of the third aspect, in a ninth possible implementation, the first processing module is specifically configured to When the time arrives, the first subframe configuration type is adopted to interact with the DeNB for data transmission and reception; the second processing module is specifically configured to adopt the second subframe when the preset application time arrives The configuration type is used to interact with the UE to send and receive data.

According to any one of the third to eighth possible implementations of the third aspect, in the tenth possible implementation, the first notification message, the third notification message or the fifth notification message further includes Subframe configuration type application time;

The first processing module is specifically configured to use the first subframe configuration type to interact with the DeNB for data transmission and reception when the application time of the subframe configuration type arrives;

The second notification message, the fourth notification message or the sixth notification message also includes the application time of the subframe configuration type;

The second processing module is specifically configured to use the second subframe configuration type to interact with the UE for data transmission and reception when the application time of the subframe configuration type arrives.

In a fourth aspect, an embodiment of the present invention provides a base station, the base station includes: a determination module, configured to determine to enable a relay node RN to simultaneously transmit and receive uplink and downlink data functions; a processing module, configured to adopt the first subframe configuration type, and the The RN performs data sending and receiving interaction.

In a first possible implementation manner of the fourth aspect, the determining module is specifically configured to:

After the RN turns on the relay function, according to the network status information, it is determined to turn on the function of the RN to send and receive uplink and downlink data at the same time; or,

According to the instruction sent by the RN to enable the function of the RN to simultaneously transmit and receive uplink and downlink data, it is determined to enable the function of the RN to simultaneously transmit and receive uplink and downlink data.

According to the first possible implementation of the fourth aspect, in the second possible implementation, the processing module is further configured to:

Receive the first notification message sent by the RN, the first notification message includes an instruction to enable the RN to simultaneously send and receive uplink and downlink data functions, and send the first subframe configuration type and the The second subframe configuration type;

or,

receiving a third notification message sent by the RN, where the third notification message includes an indication of enabling the function of the RN to simultaneously send and receive uplink and downlink data, and the first subframe configuration type;

or,

Sending a fifth notification message to the RN, where the fifth notification message includes an indication of enabling the RN to simultaneously transmit and receive uplink and downlink data, and the first subframe configuration type and the second subframe configuration type.

According to the second possible implementation manner of the fourth aspect, in the third possible implementation manner, it further includes: a configuration module, configured to: before the DeNB sends the fifth notification message to the RN, according to the initial subframe configuration type, to determine the first subframe configuration type and the second subframe configuration type.

According to a third possible implementation manner of the fourth aspect, in a fourth possible implementation manner, the configuration module is specifically configured to: determine to adopt an initial subframe configuration type as the second subframe configuration type; and , according to the initial subframe configuration type, determine the candidate subframe configuration type, use the second subframe configuration type as the reference subframe configuration type, modify the subframe configuration type to be modified according to the subframe configuration type modification method, and determine the The first subframe configuration type, wherein the subframe configuration type to be modified is the candidate subframe configuration type;

Alternatively, the configuration module is specifically configured to: determine that an initial subframe configuration type is used as the first subframe configuration type; and, according to the initial subframe configuration type, determine a candidate subframe configuration type, and use the first subframe configuration type The frame configuration type is a reference subframe configuration type. According to the modification method of the subframe configuration type, the subframe configuration type to be modified is modified to determine the second subframe configuration type, wherein the subframe configuration type to be modified is the Candidate subframe configuration type;

Alternatively, the configuration module is specifically configured to: determine a candidate subframe configuration type according to the initial subframe configuration type, and use the candidate subframe configuration type as the second subframe configuration type; and, use the first subframe configuration type The second subframe configuration type is a reference subframe configuration type. According to the modification method of the subframe configuration type, the subframe configuration type to be modified is modified to determine the first subframe configuration type, wherein the subframe configuration type to be modified is The initial subframe configuration type.

According to the fourth possible implementation of the fourth aspect, in the fifth possible implementation, the configuration module is specifically configured to: align the downlink transmission subframe and the uplink transmission subframe of the initial subframe configuration type The special subframe of the initial subframe configuration type is left blank, and the candidate subframe configuration type is determined according to the standard subframe configuration type list;

Alternatively, the configuration module is specifically configured to: swap the uplink and downlink subframes of the initial subframe configuration type, set a special subframe between the conversion of the downlink transmission subframe and the uplink transmission subframe, and set the initial subframe The special subframe of the configuration type is transformed into an uplink transmission subframe or a downlink transmission subframe, and the configuration type of the candidate subframe is determined.

According to a fourth possible implementation of the fourth aspect, in a sixth possible implementation, the modification of the subframe configuration type includes:

Perform silent muting processing on the part of the subframe configuration type to be modified that conflicts with the reference subframe configuration type or the conflicting subframes; or,

Modifying the subframes in the to-be-modified subframe configuration type that conflict with the reference subframe configuration type to subframes that do not conflict with the reference subframe configuration type.

According to a third possible implementation manner of the fourth aspect, in a seventh possible implementation manner, the configuration module is specifically configured to: determine to adopt an initial subframe configuration type as the first subframe configuration type; and , searching for the second subframe configuration type corresponding to the initial subframe configuration type in a mapping table;

Alternatively, the configuration module is specifically configured to: determine that an initial subframe configuration type is used as the second subframe configuration type; and, look up the first subframe configuration type corresponding to the initial subframe configuration type in a mapping table frame configuration type;

or,

The configuration module is specifically configured to: look up the first subframe configuration type and the second subframe configuration type in a mapping table.

According to the fourth aspect and the first to seventh possible implementations of the fourth aspect, in an eighth possible implementation, the processing module is specifically configured to use the The first subframe configuration type is for interacting with the RN to send and receive data.

According to the third to seventh possible implementations of the fourth aspect, in a ninth possible implementation, the first notification message, the third notification message or the fifth notification message further includes the subframe configuration type Application time: the processing module is specifically configured to use the first subframe configuration type to interact with the RN for data transmission and reception when the subframe configuration type application time arrives.

The data transceiving method, relay node, and base station provided by the embodiments of the present invention configure the first subframe configuration type for the backhaul link, and configure the second subframe configuration different from the first subframe configuration type for the access link type, so that the RN can use the first subframe configuration type to interact with the DeNB for data transmission and reception, and at the same time use the second subframe configuration type to interact with the UE for data transmission and reception. This enables the RN to simultaneously transmit and receive uplink and downlink data. High resource utilization.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a flow chart of Embodiment 1 of the data transmission method provided by the present invention;

Fig. 2a is a schematic diagram of the working principle of the existing RN data transmission mode;

Fig. 2b is a schematic diagram of the working principle of Embodiment 1 of the data transmission method provided by the present invention;

FIG. 3 is a flowchart of Embodiment 2 of the data transmission method provided by the present invention;

FIG. 4 is a signaling flowchart of Embodiment 3 of the data transmission method provided by the present invention;

FIG. 5a is a schematic diagram of a subframe configuration process in processing mode 1 of Embodiment 3 of the data transmission method provided by the present invention;

FIG. 5b is a schematic diagram of a selection method of a candidate subframe configuration type in processing method 2 of Embodiment 3 of the data transmission method provided by the present invention;

FIG. 5c is a schematic diagram of another subframe configuration process in the processing mode 2 of the third embodiment of the data transmission method provided by the present invention;

FIG. 6 is a schematic structural diagram of Embodiment 1 of a relay node provided by the present invention;

FIG. 7 is a schematic structural diagram of Embodiment 2 of a relay node provided by the present invention;

FIG. 8 is a schematic structural diagram of Embodiment 1 of a base station provided by the present invention;

FIG. 9 is a schematic structural diagram of Embodiment 2 of the base station provided by the present invention.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

FIG. 1 is a flowchart of Embodiment 1 of the data transmission method provided by the present invention. The data transmission method in this embodiment is applicable to a scenario where the RN implements data forwarding between the UE and the base station by means of time division multiplexing. As shown in Figure 1, the method of this embodiment includes:

101. The RN uses the first subframe configuration type to interact with the DeNB for sending and receiving data.

102. The RN uses the second subframe configuration type to interact with the UE for data transmission and reception; wherein the first subframe configuration type is different from the second subframe configuration type.

Specifically, the first subframe configuration type refers to the subframe configuration type configured on the backhaul link between the DeNB and the RN; the second subframe configuration type refers to the access subframe configuration type configured between the RN and the UE. The type of subframe configuration on the link. The difference between the first subframe configuration type and the second subframe configuration type means that the two may adopt different subframe configurations, or both may adopt the same subframe configuration but have different subframe offsets. Wherein, the subframe ratio refers to the ratio of the number of uplink and downlink subframes in a frame, and each standard subframe type has a corresponding subframe ratio.

In the existing relay technology, the backhaul link and the access link use the same frequency band. In order to avoid self-interference, the RN cannot receive the uplink data sent by the UE when receiving the downlink data sent by the base station, or the RN is sending Uplink data cannot be sent to the UE at the same time downlink data. Fig. 2a is a schematic diagram of the working principle of the existing RN data transmission mode. As shown in Figure 2a, the existing data transmission method is: in time slot (1) DeNB sends downlink data to RN; in time slot (2) RN sends downlink data to UE; in time slot (3) RN receives UE’s uplink data; in time slot (4) DeNB receives the uplink data sent by RN; among them, time slot (1), time slot (2), time slot (3) and time slot (4) are 4 different time slots Gap. In order to ensure this data transmission mode, the existing relay technology requires that the subframe configuration type configured by the DeNB for the RN on the backhaul link is the same as the subframe configuration type configured by the RN for the UE on the access link, and the subframe configuration type The frame ratio adopts one of seven standard configurations. Table 1 is a standard configuration table of uplink and downlink subframe switching points. As shown in Table 1, D represents a downlink transmission subframe, U represents an uplink transmission subframe, and S represents a special subframe. The special subframe is composed of DwPTS, GP, and UpPTS. DwPTS is used for downlink transmission, and UpPTS is used for uplink transmission. The lengths of DwPTS and UpPTS are configurable.

Table 1. Uplink and downlink subframe switching point configuration table

However, in the embodiment of the present invention, the first subframe configuration type is configured for the backhaul link, and the second subframe configuration type different from the first subframe configuration type is configured for the access link, that is, the backhaul link Different subframe configuration types are configured on the link and the access link respectively. The RN adopts the first subframe configuration type to interact with the DeNB for data transmission and reception, and adopts the second subframe configuration type to interact with the UE for data transmission and reception, realizing the function of the RN to simultaneously transmit and receive uplink and downlink data. The function of RN sending and receiving uplink and downlink data at the same time means that at the same time, RN can receive uplink data sent by UE while receiving downlink data sent by DeNB; or, RN can send uplink data to UE while sending uplink data to DeNB. downlink data. Fig. 2b is a schematic diagram of the working principle of Embodiment 1 of the data transmission method provided by the present invention. As shown in Figure 2b, in time slot (a) RN simultaneously receives downlink data sent by DeNB and uplink data sent by UE; in time slot (b) RN simultaneously sends uplink data to DeNB and downlink data to UE. Slot (a) and slot (b) are two different time slots.

In the data sending and receiving method provided by the embodiment of the present invention, by configuring the subframe configuration types and related signaling of the backhaul link and the access link, the first subframe configuration type is configured for the backhaul link, and the first subframe configuration type is configured for the access link. The channel configuration is different from the second subframe configuration type of the first subframe configuration type, so that the RN can use the second subframe configuration type to communicate with the UE while using the first subframe configuration type to interact with the DeNB for data transmission and reception. The interaction of sending and receiving realizes the function of RN sending and receiving uplink and downlink data at the same time, and the utilization rate of system spectrum resources is high.

On the basis of the above embodiments, whether to enable the function of RN to simultaneously send and receive uplink and downlink data, and when to enable it are optional, and enabling or disabling this function can be determined by the RN or the network side. Wherein, the network side refers to a DeNB or an operation and maintenance (Operation and Maintenance, OAM for short). When the DeNB or RN decides to turn on or off the function, it notifies the corresponding RN or DeNB to turn on/off the function by sending an instruction to turn on or off the function of sending and receiving uplink and downlink data at the same time for the RN. It should be noted that the OAM can also implement the data sending and receiving method in any embodiment of the present invention.

The RN or DeNB decides to enable the RN to simultaneously send and receive uplink and downlink data in at least the following three ways:

Implementation mode 1: When the relay function is enabled on the RN, the function of the RN to simultaneously send and receive uplink and downlink data is enabled.

Implementation mode 2: After the RN enables the relay function, it determines to enable the function of the RN to simultaneously send and receive uplink and downlink data according to the network status information.

Implementation mode 3: After the RN enables the relay function, the DeNB determines to enable the RN to simultaneously transmit and receive uplink and downlink data according to the network state information.

In implementation mode 1, the RN is configured to transmit and receive uplink and downlink data at the same time by default, and the relay function is enabled when the RN accesses the DeNB, that is, when the RN-eNB function is enabled, the RN simultaneously transmits and receives uplink and downlink data. In implementation mode 2, the default configuration of the RN is the traditional time-division half-duplex mode. After the RN accesses the DeNB to enable the relay function and start data transmission, it decides to enable or disable the function of simultaneously sending and receiving uplink and downlink data according to the network status information. For example, when the data When the traffic increases to a preset threshold, a higher utilization rate of system spectrum resources is required, and it is determined to enable the function of the RN to simultaneously send and receive uplink and downlink data. For the above-mentioned implementation mode 1 and implementation mode 2, after the RN determines to enable the RN to simultaneously transmit and receive uplink and downlink data functions, it sends an instruction to the DeNB to enable the RN to simultaneously transmit and receive uplink and downlink data functions, so that the DeNB determines to enable the RN to simultaneously transmit and receive uplink and downlink data according to the instructions Uplink and downlink data functions; the DeNB determines to enable the RN to simultaneously send and receive uplink and downlink data functions according to the instruction. For the above implementation mode 3, after determining to enable the function of RN to simultaneously transmit and receive uplink and downlink data, the DeNB sends an instruction to RN to enable the function of RN to simultaneously transmit and receive uplink and downlink data, so that the RN determines to enable the RN to simultaneously transmit and receive uplink and downlink data according to the instruction ; The RN determines to enable the function of the RN to simultaneously send and receive uplink and downlink data according to the instruction.

After the function of sending and receiving uplink and downlink data of the RN at the same time is turned on, it can also be turned off according to the network status information.

After the RN or DeNB determines to enable the RN to simultaneously transmit and receive uplink and downlink data functions, according to the initial subframe configuration type, configure different subframe configuration types for the backhaul link and the access link, that is, determine the first subframe configuration type and the second subframe configuration type.

Specifically, the initial subframe configuration type refers to the same subframe configuration type used on the backhaul link and the access link before the RN simultaneously transmits and receives uplink and downlink data. There are two types of DeNBs accessed by RNs: one type is a base station that can provide services for common UEs and RNs at the same time, and the other type is a base station that only provides services for RNs. The operation of configuring different subframe configuration types for the backhaul link and the access link can be performed by DeNB or RN, where the configuration process can be any of the following:

Configuration mode 1: The DeNB or RN determines to adopt the initial subframe configuration type as the second subframe configuration type; and, the DeNB or RN determines the candidate subframe configuration type according to the initial subframe configuration type, and uses the second subframe configuration type The configuration type is a reference subframe configuration type. According to the modification method of the subframe configuration type, the subframe configuration type to be modified is modified to determine the first subframe configuration type, wherein the subframe configuration type to be modified is the candidate Subframe configuration type.

Configuration mode 2: DeNB or RN determines to adopt the initial subframe configuration type as the first subframe configuration type; and, DeNB or RN determines the candidate subframe configuration type according to the initial subframe configuration type, and uses the first subframe configuration type The configuration type is a reference subframe configuration type. According to the modification method of the subframe configuration type, the subframe configuration type to be modified is modified to determine the second subframe configuration type, wherein the subframe configuration type to be modified is the candidate Subframe configuration type.

Configuration mode 3: The DeNB or RN determines the candidate subframe configuration type according to the initial subframe configuration type, and uses the candidate subframe configuration type as the second subframe configuration type; and, the DeNB or RN uses the second The subframe configuration type is a reference subframe configuration type. According to the modification method of the subframe configuration type, the subframe configuration type to be modified is modified to determine the first subframe configuration type, wherein the subframe configuration type to be modified is the The initial subframe configuration type described above.

Configuration mode 4: DeNB or RN determines to adopt an initial subframe configuration type as the first subframe configuration type; and searches the mapping table for the second subframe configuration type corresponding to the initial subframe configuration type.

Configuration mode 5: the DeNB or RN determines to adopt the initial subframe configuration type as the second subframe configuration type; and searches the mapping table for the first subframe configuration type corresponding to the initial subframe configuration type.

Configuration mode 6: the DeNB or RN searches the mapping table for the first subframe configuration type and the second subframe configuration type.

For the above configuration mode 4, configuration mode 5 or configuration mode 6, a preset mapping table is saved in the DeNB and the RN respectively, and the mapping table records the corresponding relationship between the DeNB subframe configuration type and the RN subframe configuration type, the subframe Correspondence between frame configuration type and subframe configuration type modification method. When the DeNB or RN decides or receives an instruction to turn on or off the RN to send and receive uplink and downlink data at the same time, the DeNB or RN that stores the mapping table looks up the mapping table for corresponding processing and notifies the RN or DeNB. Wherein, in configuration manner 6, the pre-planned first subframe configuration type and the second subframe configuration type are stored in a mapping table.

In the above configuration mode 1-configuration mode 3, the DeNB or RN determines the selection mode of the candidate subframe configuration type according to the initial subframe configuration type, which may include at least the following two types:

Option 1: The DeNB or RN swaps the downlink transmission subframe and the uplink transmission subframe of the initial subframe configuration type, and leaves the special subframe of the initial subframe configuration type blank, according to the standard subframe configuration a list of types to determine the candidate subframe configuration type; or,

Option 2: The DeNB or RN swaps the uplink and downlink subframes of the initial subframe configuration type, sets a special subframe between the downlink transmission subframe and the uplink transmission subframe conversion, and sets the initial subframe configuration type The special subframes are transformed into uplink transmission subframes or downlink transmission subframes, and the candidate subframe configuration type is determined.

In the above-mentioned configuration mode 1-configuration mode 3, the subframe configuration type modification methods may include at least the following two modification methods:

Modification 1: Perform muting processing on the part of the subframe configuration type to be modified that conflicts with the reference subframe configuration type or the conflicting subframes. Muting refers to not performing data transmission and reception in the conflicting part or subframe.

Modification 2: Modify the subframes in the subframe configuration type to be modified that conflict with the reference subframe configuration type to subframes that do not conflict with the reference subframe configuration type;

Specifically, if the DeNB only provides services for the RN, or when the backward compatibility of the UE is not considered, the part of the subframe configuration type to be modified that conflicts with the reference subframe configuration type or conflicts with the reference subframe configuration type Muting processing is performed on the subframes. Muting refers to not performing data transmission and reception in the conflicting part or subframe; or, subframes in the subframe configuration type to be modified that conflict with the reference subframe configuration type , modified to a subframe that does not conflict with the configuration type of the reference subframe;

If the DeNB provides services for the UE and the RN at the same time, the part of the subframe configuration type to be modified that conflicts with the reference subframe configuration type or the conflicting subframes is silently processed.

The way to modify the subframe configuration type can be determined by the DeNB when selecting the second subframe configuration type; or by the RN and notify the DeNB when the second subframe configuration type is selected; or by the DeNB or RN according to the mapping table.

Based on the above-mentioned determination of enabling the RN to simultaneously transmit and receive uplink and downlink data functions, and configuring different subframe configuration types for the backhaul link and the access link, the information interaction between the RN, the UE, and the DeNB The scheme may include at least the following three information exchange schemes:

Information exchange scheme 1: Corresponding to the technical scheme of the above-mentioned implementation mode 1 or implementation mode 2, after the RN first determines to enable the function of sending and receiving uplink and downlink data at the same time, the RN determines the first subframe configuration type according to the initial subframe configuration type and the second subframe configuration type; and send the determined first subframe configuration type and an instruction to enable the RN to simultaneously transmit and receive uplink and downlink data functions to the DeNB: the RN sends a third notification message to the DeNB, in the third notification message Including an indication of enabling the function of RN to simultaneously send and receive uplink and downlink data, and the first subframe configuration type; the DeNB receives the third notification message sent by the RN; correspondingly, the RN sends a fourth notification message to the UE, and the The fourth notification message includes the second subframe configuration type, so that the UE uses the second subframe configuration type to interact with the RN for data transmission and reception.

Information exchange scheme 2: Corresponding to the technical scheme of the above-mentioned implementation mode 1 or implementation mode 2, after the RN first determines to enable the function of sending and receiving uplink and downlink data at the same time, send the first notification to the DeNB indicating that the function of sending and receiving uplink and downlink data at the same time for the RN is enabled message: after receiving the first notification message, the DeNB determines the first subframe configuration type and the second subframe configuration type according to the initial subframe configuration type, and sends them to the RN, so that the RN obtains the first subframe configuration type and the second subframe configuration type; and, the RN sends a second notification message including the second subframe configuration type to the UE, so that the UE uses the second subframe configuration type to interact with the RN for data transmission and reception.

Information exchange scheme 3: Corresponding to the technical scheme of the above implementation mode 3, after the DeNB first determines to enable the function of sending and receiving uplink and downlink data by the RN at the same time, the DeNB determines the first subframe configuration type according to the current DeNB subframe configuration type, that is, the initial subframe configuration type. A subframe configuration type and a second subframe configuration type; the DeNB sends a fifth notification message to the RN, and the fifth notification message includes an instruction to enable the RN to simultaneously send and receive uplink and downlink data functions, and the first subframe configuration type and the second subframe configuration type; the RN receives the fifth notification message, and determines to enable the RN to simultaneously send and receive uplink and downlink data according to the instruction; and the RN sends a sixth notification message containing the second subframe configuration type to the UE, The UE uses the second subframe configuration type to interact with the RN for data transmission and reception.

Optionally, the first notification message and the fifth notification message further include: the subframe sequence numbers of the first subframe configuration type and the second subframe configuration type are respectively relative to their corresponding standard configurations The offset of the subframe sequence number of the type to ensure the synchronization between the DeNB and the RN.

Optionally, the third notification message also includes: the offset of the subframe sequence number of the first subframe configuration type relative to the subframe sequence number of the standard configuration type in the same ratio, so as to ensure synchronization.

Optionally, the second notification message, the fourth notification message, or the sixth notification message further includes: the subframe sequence number of the second subframe configuration type relative to the subframe sequence number of the standard configuration type that is matched Offset, to ensure the synchronization between DeNB and RN.

It is optional when the function of sending and receiving uplink and downlink data of the RN is enabled. An optional way is to preset the activation time: when the preset application time arrives, the RN adopts the configuration type of the first subframe, which is different from the configuration type of the subframe The DeNB performs data transceiving interaction; the RN adopts the second subframe configuration type when the preset application time arrives, and performs data transceiving interaction with the UE.

Another optional way is: the opening time is determined by the DeNB or RN that determines to enable the function of the RN to simultaneously send and receive uplink and downlink data.

Further, the first notification message, the third notification message or the fifth notification message also includes a subframe configuration type application time; when the subframe configuration type application time arrives, the RN uses the first subframe The configuration type is to interact with the DeNB for data transmission and reception; correspondingly, the second notification message, the fourth notification message or the sixth notification message also includes the application time of the subframe configuration type; the RN in the When the application time of the subframe configuration type arrives, the second subframe configuration type is used to interact with the UE for data transmission and reception.

In the data transceiving method provided by the embodiment of the present invention, by configuring different subframe configuration types for the backhaul link and the access link, the RN can interact with the DeNB while using the first subframe configuration type to perform data transceiving. The second subframe configuration type is used to interact with the UE for data transmission and reception, which realizes the function of RN to transmit and receive uplink and downlink data at the same time, and the utilization rate of system spectrum resources is high.

Optionally, when the RN switches on or off the function of sending and receiving uplink and downlink data at the same time, keep the synchronization between the RN and the DeNB to maintain the modification of the subframe configuration type, so that the synchronization between the DeNB and the RN, for example: when the RN or the DeNB transmits Or when turning off the instruction of RN to simultaneously send and receive uplink and downlink data functions, designate a specific time slot to modify the subframe configuration type at the same time; or, after RN or DeNB sends an instruction to enable or disable RN to send and receive uplink and downlink data functions at the same time N Modify the subframe configuration type at the same time after time slots, and N is a pre-agreed number. The above two schemes can be realized through the RN or DeNB transmitting the "simultaneous modification of subframe configuration indication".

Optionally, realize the isolation of uplink and downlink receiving signals and the isolation of uplink and downlink sending signals through physical isolation; or use channel information to realize (quasi) orthogonality of uplink and downlink receiving signals and (quasi) orthogonality of uplink and downlink sending signals ; When the UE served by the DeNB and the UE served by the RN are far away or physically separated, the interference of the uplink received signal of the RN on the signal received by the UE served by the DeNB and the interference of the uplink transmitted signal of the UE served by the DeNB on the downlink received signal of the UE served by the RN can also be avoided.

FIG. 3 is a flow chart of Embodiment 2 of the data transmission method provided by the present invention. The data transmission method in this embodiment is applicable to a scenario where the RN implements data forwarding between the UE and the base station by means of time division multiplexing. As shown in Figure 3, the method of this embodiment includes:

301. The DeNB determines to enable the function of the RN to simultaneously send and receive uplink and downlink data.

302. The DeNB adopts the first subframe configuration type, and performs data sending and receiving interaction with the RN.

In the data transceiving method provided by the embodiment of the present invention, by configuring different subframe configuration types for the backhaul link and the access link, the RN can interact with the DeNB while using the first subframe configuration type to perform data transceiving. The second subframe configuration type is used to interact with the UE for data transmission and reception, which realizes the function of RN to transmit and receive uplink and downlink data at the same time, and the utilization rate of system spectrum resources is high.

It should be noted that the operation of determining to enable the function of RN to simultaneously transmit and receive uplink and downlink data can also be implemented by OAM, for example, the following implementation method can be used: OAM determines to enable the function of RN to simultaneously transmit and receive uplink and downlink data; DeNB adopts the first subframe configuration type , performing data sending and receiving interaction with the RN.

FIG. 4 is a signaling flowchart of Embodiment 3 of the data transmission method provided by the present invention. This embodiment is completed by cooperation of RN, DeNB and UE. As shown in Figure 4, the method of this embodiment includes:

401. The RN determines to enable the function of the RN to simultaneously send and receive uplink and downlink data.

402. The RN determines the first subframe configuration type and the second subframe configuration type according to the initial subframe configuration type.

Specifically, enabling or disabling this function can be determined by the RN or the network side. This embodiment uses the RN as an example for illustration; the operation of configuring different subframe configuration types for the backhaul link and the access link can be determined by the DeNB or RN, and this embodiment uses RN as an example for illustration.

According to whether the backward compatibility of the UE needs to be guaranteed, the RN determines the processing method of the first subframe configuration type and the second subframe configuration type according to the initial subframe configuration type at least including the following two methods:

Processing method 1: In order to ensure the backward compatibility of the UE, the subframe configuration type of the access link adopts the standard configuration type specified in the protocol, and the subframe configuration type of the backhaul link can be configured on the basis of the standard configuration type. Revise. That is, the second subframe configuration type adopts the standard configuration type stipulated in the protocol, while the first subframe configuration type can be modified on the basis of the standard configuration type

The DeNB or RN determines the candidate subframe configuration type according to the initial subframe configuration type, and uses the candidate subframe configuration type as the second subframe configuration type. When there may be two or more candidate subframe configuration types to be selected according to the initial subframe configuration type, the DeNB or RN may select one of them and notify the RN or DeNB, or configure one type statically in the mapping table. After the second subframe configuration type is selected, the subframes whose initial subframe configuration type conflicts with the second subframe configuration type are modified to determine the first subframe configuration type. For the modification method of the subframe configuration type, refer to the modification method 1 or the modification method 2 in the foregoing embodiments.

When the subframe in which the initial subframe configuration type conflicts with the second subframe configuration type is a special subframe or conflicts with a special subframe of the second subframe configuration type, the silent part in the initial subframe configuration type is the corresponding DwPTS or UpPTS, and the silence duration is determined by the special subframe configuration. The lengths of the special subframes DwPTS and UpPTS adopt one of the nine configuration modes specified in the standard.

Fig. 5a is a schematic diagram of a subframe configuration process in processing mode 1 of Embodiment 3 of the data transmission method provided by the present invention. As shown in FIG. 5 a , the initial subframe configuration type takes configuration 1 in Table 1 in the above embodiment as an example, and the candidate subframe configuration type to be selected may be configuration 0 or configuration 1 . In Figure 5a, the candidate subframe configuration type is determined as configuration 1, and the initial subframe configuration type is modified. The downlink transmission part DwPTS corresponding to subframe 1 (special subframe) of the initial subframe configuration type needs to be silent or the entire subframe is silent , the uplink transmission of subframe 3 of the initial subframe configuration type corresponding to UpPTS in subframe 3 (special subframe) of the second subframe configuration type needs to be silent or the entire subframe is silent. Similarly, the initial subframe configuration type Subframe 6 and subframe 8 need corresponding processing; the modified initial subframe configuration type is the first subframe configuration type. In order to ensure the synchronization between the DeNB and the RN, after the subframe configuration type and subframe configuration type modification method are selected, when indicating the preset application time or the subframe configuration type application time, it is necessary to indicate the second subframe configuration type at the same time. The offset of the subframe sequence number of the frame configuration type relative to the subframe sequence number of the standard configuration type with the same ratio, especially for the second subframe configuration type and the first subframe configuration type. In the case of different frame offsets, the subframe offset may be used to distinguish the subframe configuration types of the backhaul link and the access link.

Processing method 2: When the backward compatibility of the UE is not considered, optionally, the subframe configuration type of the access link may adopt a non-standard subframe configuration type. The configuration process of the second subframe configuration type and the first subframe configuration type may adopt at least the following two schemes:

Fig. 5b is a schematic diagram of a selection method of candidate subframe configuration types in processing method 2 of Embodiment 3 of the data transmission method provided by the present invention. As shown in FIG. 5b , the configuration type of the initial subframe is configuration 1 as an example. The second subframe configuration type can be configured directly according to the initial subframe configuration type, the uplink and downlink subframes in the initial subframe configuration type are swapped, and special subframes are set between downlink and uplink subframe conversions, and the initial subframe After the special subframe of the frame configuration type is converted into an uplink or downlink subframe, after selecting and determining the second subframe configuration type; modify the conflicting part between the initial subframe configuration type and the second subframe configuration type; the modified initial subframe configuration type The frame configuration type is the configuration type of the first subframe. The way to modify the subframe configuration type can be determined by the DeNB when selecting the second subframe configuration type; or by the RN and notify the DeNB when the second subframe configuration type is selected; or by the DeNB or RN according to the mapping table.

FIG. 5c is a schematic diagram of another subframe configuration process in the processing mode 2 of the third embodiment of the data transmission method provided by the present invention. As shown in Figure 5c, the DeNB or RN determines to adopt the initial subframe configuration type as the first subframe configuration type; and, the DeNB or RN determines the candidate subframe configuration type according to the initial subframe configuration type, and uses the first The subframe configuration type is a reference subframe configuration type. According to the modification method of the subframe configuration type, the subframe configuration type to be modified is modified to determine the second subframe configuration type, wherein the subframe configuration type to be modified is the The above candidate subframe configuration type.

Using the initial subframe configuration type as the first subframe configuration type; selecting a candidate subframe configuration type for the second subframe configuration type according to the initial subframe configuration type, the candidate subframe configuration type is a standard subframe configuration, Afterwards, the subframe of the candidate subframe configuration type that conflicts with the first subframe configuration type is modified, and the modified candidate subframe configuration type is the second subframe configuration type. In order to ensure the synchronization between the DeNB and the RN, after the subframe configuration type and subframe configuration type modification method are selected, it is necessary to indicate the offset of the subframe sequence number of the second subframe configuration type relative to the subframe sequence number of the standard configuration type in the same ratio. displacement.

403. The RN sends a third notification message to the DeNB, the third notification message includes an instruction to enable the RN to simultaneously transmit and receive uplink and downlink data functions, and the first subframe configuration type, so that the DeNB can enable the RN to simultaneously transmit and receive uplink and downlink data functions When the preset application time or the subframe configuration type application time arrives, the first subframe configuration type is used to interact with R for data transmission and reception.

404. The RN sends a fourth notification message to the UE, where the fourth notification message includes the second subframe configuration type, so that the UE will be at the preset application time or the subframe configuration type application time When arriving, use the second subframe configuration type to perform data sending and receiving interaction with the RN.

405. The RN adopts the first subframe configuration type when the preset application time or the subframe configuration type application time arrives, and performs data transceiving interaction with the DeNB.

406. The RN adopts the second subframe configuration type when the preset application time or the subframe configuration type application time arrives, and performs data transceiving interaction with the UE.

In the data transceiving method provided by the embodiment of the present invention, by configuring different subframe configuration types for the backhaul link and the access link, the RN can interact with the DeNB while using the first subframe configuration type to perform data transceiving. The second subframe configuration type is used to interact with the UE for data transmission and reception, which realizes the function of RN to transmit and receive uplink and downlink data at the same time, and the utilization rate of system spectrum resources is high.

FIG. 6 is a schematic structural diagram of Embodiment 1 of a relay node provided by the present invention. As shown in FIG. 6, the relay node 600 in this embodiment includes: a first processing module 601 and a second processing module 602, wherein:

The first processing module 601 is configured to use the first subframe configuration type to interact with the DeNB for data transmission and reception;

The second processing module 602 is configured to use the second subframe configuration type to interact with the UE for data transmission and reception; wherein, the first subframe configuration type is different from the second subframe configuration type.

The relay node provided by the embodiment of the present invention can be used to implement the technical solution of the embodiment of the data transmission method shown in Figure 1. For the specific process of executing the data transmission method, refer to the specific description of the method embodiment shown in Figure 1, here No longer.

The relay node provided by the embodiment of the present invention configures different subframe configuration types for the backhaul link and the access link, so that the RN can use the first subframe configuration type to interact with the DeNB for data transmission and reception, and can The second subframe configuration type is used to interact with the UE for data transmission and reception, which realizes the function of RN to transmit and receive uplink and downlink data at the same time, and the utilization rate of system spectrum resources is high.

FIG. 7 is a schematic structural diagram of Embodiment 2 of a relay node provided by the present invention. The relay node 700 in this embodiment is implemented based on the above-mentioned embodiments. As shown in Figure 7, the relay node 700 also includes the first processing module 601 and the second processing module 602 shown in Figure 6, and each module also has the functions described in the embodiment shown in Figure 6, further, the relay node 700 also includes: a determining module 701, used for the first processing module to use the first subframe configuration type to determine to enable the RN to simultaneously transmit and receive uplink and downlink data before interacting with the DeNB for data transmission and reception.

Further, the determination module 701 is specifically used to: when the relay function is enabled, enable the function of the RN to simultaneously transmit and receive uplink and downlink data; or, after enabling the relay function, determine to enable the RN to simultaneously transmit and receive uplink and downlink data according to network status information; Or, after enabling the relay function, enable the RN to simultaneously transmit and receive uplink and downlink data according to the instruction sent by the DeNB to enable the RN to simultaneously transmit and receive uplink and downlink data.

Further, the first processing module 601 is also configured to send a first notification message to the DeNB, where the first notification message includes an instruction to enable the function of the RN to simultaneously send and receive uplink and downlink data, and receive the notification sent by the DeNB according to the instruction. the first subframe configuration type and the second subframe configuration type;

Correspondingly, the second processing module 602 is further configured to send a second notification message to the UE, where the second notification message includes the second subframe configuration type, so that the UE adopts the second subframe configuration type, interacting with the RN to send and receive data;

or,

The first processing module 601 is further configured to send a third notification message to the DeNB, where the third notification message includes an instruction to enable the function of RN to simultaneously send and receive uplink and downlink data, and the first subframe configuration type;

Correspondingly, the second processing module 602 is further configured to send a fourth notification message to the UE, where the fourth notification message includes the second subframe configuration type, so that the UE adopts the second subframe configuration type type, interacting with the RN to send and receive data;

or,

The first processing module 601 is also configured to receive the fifth notification message sent by the DeNB, the fifth notification message includes the instruction sent by the DeNB to enable the function of RN to simultaneously send and receive uplink and downlink data, and the first a frame configuration type and a second subframe configuration type;

Correspondingly, the second processing module 602 is further configured to send a sixth notification message to the UE, where the sixth notification message includes the second subframe configuration type, so that the UE adopts the second subframe configuration type Type, to interact with the RN to send and receive data.

Further, the relay node 700 further includes: a configuration module 702, configured to determine the first subframe configuration type and the set subframe configuration type according to the initial subframe configuration type before the first processing module sends the third notification message to the DeNB. The above-mentioned second subframe configuration type.

Further, the configuration module 702 is specifically configured to: determine that an initial subframe configuration type is used as the second subframe configuration type; and, according to the initial subframe configuration type, determine a candidate subframe configuration type, and use the second subframe configuration type The configuration type is a reference subframe configuration type. According to the modification method of the subframe configuration type, the subframe configuration type to be modified is modified to determine the first subframe configuration type, wherein the subframe configuration type to be modified is the candidate Subframe configuration type;

or,

The configuration module 702 is specifically configured to: determine that an initial subframe configuration type is used as the first subframe configuration type; and, according to the initial subframe configuration type, determine a candidate subframe configuration type, and use the first subframe configuration type To refer to the subframe configuration type, modify the subframe configuration type to be modified according to the modification method of the subframe configuration type, and determine the second subframe configuration type, wherein the subframe configuration type to be modified is the candidate subframe configuration type;

or,

The configuration module 702 is specifically configured to: determine a candidate subframe configuration type according to the initial subframe configuration type, and use the candidate subframe configuration type as the second subframe configuration type; and, use the second subframe configuration type The configuration type is a reference subframe configuration type. According to the modification method of the subframe configuration type, the subframe configuration type to be modified is modified to determine the first subframe configuration type, wherein the subframe configuration type to be modified is the initial Subframe configuration type.

Further, the configuration module 702 is specifically configured to swap the downlink transmission subframe and the uplink transmission subframe of the initial subframe configuration type, leave the special subframe of the initial subframe configuration type blank, and configure according to the standard subframe a type list to determine the candidate subframe configuration type; or,

The configuration module 702 is specifically configured to swap the uplink and downlink subframes of the initial subframe configuration type, set a special subframe between the conversion of the downlink transmission subframe and the uplink transmission subframe, and configure the special subframe of the initial subframe configuration type The subframe is transformed into an uplink transmission subframe or a downlink transmission subframe, and a candidate subframe configuration type is determined.

Further, the modification method of the subframe configuration type includes:

Perform silent muting processing on the part of the subframe configuration type to be modified that conflicts with the reference subframe configuration type or the conflicting subframes; or,

Modifying the subframes in the to-be-modified subframe configuration type that conflict with the reference subframe configuration type to subframes that do not conflict with the reference subframe configuration type.

Further, the configuration module 702 is specifically configured to: determine that an initial subframe configuration type is used as the first subframe configuration type; and, search a mapping table for the second subframe corresponding to the initial subframe configuration type configuration type;

or,

The configuration module 702 is specifically configured to: determine that an initial subframe configuration type is used as the second subframe configuration type; and, search a mapping table for the first subframe configuration type corresponding to the initial subframe configuration type ;

or,

The configuration module 702 is specifically configured to: look up the first subframe configuration type and the second subframe configuration type in a mapping table.

Further, the first processing module 601 is specifically configured to use the first subframe configuration type when the preset application time arrives, and interact with the DeNB for data transmission and reception;

The second processing module 602 is specifically configured to adopt the second subframe configuration type when the preset application time arrives, and perform data transceiving interaction with the UE.

Further, the first notification message, the third notification message or the fifth notification message also includes the application time of the subframe configuration type;

The first processing module 601 is specifically configured to use the first subframe configuration type to interact with the DeNB for data transmission and reception when the application time of the subframe configuration type arrives;

The second notification message, the fourth notification message or the sixth notification message also includes the application time of the subframe configuration type;

The second processing module 602 is specifically configured to use the second subframe configuration type to interact with the UE for data transmission and reception when the application time of the subframe configuration type arrives.

The relay node provided by the embodiment of the present invention can be used to implement the technical solution of any of the data transmission method embodiments of the present invention. For the specific process of execution, refer to the specific description of the corresponding method embodiment, which will not be repeated here.

The relay node provided by the embodiment of the present invention configures different subframe configuration types for the backhaul link and the access link, so that the RN can use the first subframe configuration type to interact with the DeNB for data transmission and reception, and can The second subframe configuration type is used to interact with the UE for data transmission and reception, which realizes the function of RN to transmit and receive uplink and downlink data at the same time, and the utilization rate of system spectrum resources is high.

FIG. 8 is a schematic structural diagram of Embodiment 1 of a base station provided by the present invention. As shown in FIG. 8, the base station 800 of this embodiment includes: a determining module 801 and a processing module 802, wherein:

A determining module 801, configured to determine to enable the relay node RN to simultaneously transmit and receive uplink and downlink data;

The processing module 802 is configured to use the first subframe configuration type to interact with the RN for sending and receiving data.

The base station provided by the embodiment of the present invention can be used to implement the technical solution of the embodiment of the data transmission method shown in FIG. 2 . For the specific process of executing the data transmission method, refer to the specific description of the method embodiment shown in FIG. 2 , which is not repeated here. repeat.

The base station provided by the embodiment of the present invention configures different subframe configuration types for the backhaul link and the access link, so that the RN can use the first subframe configuration type to interact with the DeNB for data transmission and reception while using the second subframe configuration type. The two-subframe configuration type interacts with the UE for data transmission and reception, realizing the function of RN to transmit and receive uplink and downlink data at the same time, and the utilization rate of system spectrum resources is high.

Further, the determination module 801 is specifically configured to: after the RN enables the relay function, determine to enable the function of the RN to simultaneously send and receive uplink and downlink data according to network status information; or,

According to the instruction sent by the RN to enable the function of the RN to simultaneously transmit and receive uplink and downlink data, it is determined to enable the function of the RN to simultaneously transmit and receive uplink and downlink data.

Further, the processing module 802 is also used for:

Receive the first notification message sent by the RN, the first notification message includes an instruction to enable the RN to simultaneously send and receive uplink and downlink data functions, and send the first subframe configuration type and the The second subframe configuration type;

or,

receiving a third notification message sent by the RN, where the third notification message includes an indication of enabling the function of the RN to simultaneously send and receive uplink and downlink data, and the first subframe configuration type;

or,

Sending a fifth notification message to the RN, where the fifth notification message includes an indication of enabling the RN to simultaneously transmit and receive uplink and downlink data, and the first subframe configuration type and the second subframe configuration type.

FIG. 9 is a schematic structural diagram of Embodiment 2 of the base station provided by the present invention. The base station 900 in this embodiment is implemented based on the foregoing embodiments. As shown in FIG. 9, the base station 900 also includes the determination module 801 and the processing module 802 shown in FIG. 8, and each module also has the functions described in the embodiment shown in FIG. 8. Further, the relay node 900 also includes: a configuration module 901. Before the DeNB sends a fifth notification message to the RN, determine the first subframe configuration type and the second subframe configuration type according to an initial subframe configuration type.

Further, the configuration module 901 is specifically configured to: determine that an initial subframe configuration type is used as the second subframe configuration type; and, according to the initial subframe configuration type, determine a candidate subframe configuration type, and use the second subframe configuration type The configuration type is a reference subframe configuration type. According to the modification method of the subframe configuration type, the subframe configuration type to be modified is modified to determine the first subframe configuration type, wherein the subframe configuration type to be modified is the candidate Subframe configuration type;

or,

The configuration module 901 is specifically configured to: determine that an initial subframe configuration type is used as the first subframe configuration type; and, according to the initial subframe configuration type, determine a candidate subframe configuration type, and use the first subframe configuration type To refer to the subframe configuration type, modify the subframe configuration type to be modified according to the modification method of the subframe configuration type, and determine the second subframe configuration type, wherein the subframe configuration type to be modified is the candidate subframe configuration type;

or,

The configuration module 901 is specifically configured to: determine a candidate subframe configuration type according to the initial subframe configuration type, and use the candidate subframe configuration type as the second subframe configuration type; and, use the second subframe configuration type The configuration type is a reference subframe configuration type. According to the modification method of the subframe configuration type, the subframe configuration type to be modified is modified to determine the first subframe configuration type, wherein the subframe configuration type to be modified is the initial Subframe configuration type.

Further, the configuration module 901 is specifically configured to: swap the downlink transmission subframe and the uplink transmission subframe of the initial subframe configuration type, leave the special subframe of the initial subframe configuration type blank, and according to the standard subframe a configuration type list to determine a candidate subframe configuration type; or,

The configuration module 901 is specifically configured to: swap the uplink and downlink subframes of the initial subframe configuration type, set a special subframe between the downlink transmission subframe and the uplink transmission subframe conversion, and configure the initial subframe configuration type The special subframe is transformed into an uplink transmission subframe or a downlink transmission subframe, and the configuration type of the candidate subframe is determined.

Further, the modification method of the subframe configuration type includes:

Perform silent muting processing on the part of the subframe configuration type to be modified that conflicts with the reference subframe configuration type or the conflicting subframes; or,

Modifying the subframes in the to-be-modified subframe configuration type that conflict with the reference subframe configuration type to subframes that do not conflict with the reference subframe configuration type.

Further, the configuration module 901 is specifically configured to: determine that an initial subframe configuration type is used as the first subframe configuration type; and, search a mapping table for the second subframe corresponding to the initial subframe configuration type configuration type;

or,

The configuration module 901 is specifically configured to: determine that an initial subframe configuration type is used as the second subframe configuration type; and look up the first subframe configuration type corresponding to the initial subframe configuration type in a mapping table ;

or,

The configuration module 901 is specifically configured to: look up the first subframe configuration type and the second subframe configuration type in a mapping table.

Further, the processing module 802 is specifically configured to adopt the first subframe configuration type when the preset application time arrives, and perform data transceiving interaction with the RN.

Further, the first notification message, the third notification message or the fifth notification message also includes the application time of the subframe configuration type;

The processing module 802 is specifically configured to, when the application time of the subframe configuration type arrives, use the first subframe configuration type to interact with the RN for data transmission and reception.

The base station provided by the embodiments of the present invention can be used to implement the technical solutions of any of the data transmission method embodiments of the present invention. For the specific execution process, refer to the specific description of the corresponding method embodiments, which will not be repeated here.

The base station provided by the embodiment of the present invention configures different subframe configuration types for the backhaul link and the access link, so that the RN can use the first subframe configuration type to interact with the DeNB for data transmission and reception while using the second subframe configuration type. The two-subframe configuration type interacts with the UE for data transmission and reception, realizing the function of RN to transmit and receive uplink and downlink data at the same time, and the utilization rate of system spectrum resources is high.

Those of ordinary skill in the art can understand that all or part of the steps for implementing the above method embodiments can be completed by program instructions and related hardware. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps including the above-mentioned method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (30)

1. A method for transmitting and receiving data, comprising:

the relay node RN adopts a first subframe configuration type to perform data transceiving interaction with the host node DeNB;

the RN adopts a second subframe configuration type to perform data transceiving interaction with User Equipment (UE);

wherein the first subframe configuration type is different from a second subframe configuration type;

the RN determines the first subframe configuration type and the second subframe configuration type according to an initial subframe configuration type, and the method comprises the following steps: the RN determines to adopt an initial subframe configuration type as the second subframe configuration type; the RN determines a candidate subframe configuration type according to an initial subframe configuration type, modifies a subframe configuration type to be modified by taking the second subframe configuration type as a reference subframe configuration type according to a subframe configuration type modification mode, and determines the first subframe configuration type, wherein the subframe configuration type to be modified is the candidate subframe configuration type;

or,

the RN determines to adopt an initial subframe configuration type as the first subframe configuration type; the RN determines a candidate subframe configuration type according to an initial subframe configuration type, modifies a subframe configuration type to be modified by taking the first subframe configuration type as a reference subframe configuration type according to a subframe configuration type modification mode, and determines a second subframe configuration type, wherein the subframe configuration type to be modified is the candidate subframe configuration type;

or,

the RN determines a candidate subframe configuration type according to the initial subframe configuration type, and takes the candidate subframe configuration type as the second subframe configuration type; the RN modifies the subframe configuration type to be modified according to a subframe configuration type modification mode by taking the second subframe configuration type as a reference subframe configuration type, and determines the first subframe configuration type, wherein the subframe configuration type to be modified is the initial subframe configuration type;

the RN determines a candidate subframe configuration type according to the initial subframe configuration type, and the method comprises the following steps:

the RN interchanges a downlink transmission subframe and an uplink transmission subframe of an initial subframe configuration type, leaves a special subframe of the initial subframe configuration type as a blank, and determines a candidate subframe configuration type according to a standard subframe configuration type list; or,

the RN carries out the conversion of the uplink subframe and the downlink subframe of the initial subframe configuration type, sets a special subframe between the conversion of the downlink transmission subframe and the uplink transmission subframe, converts the special subframe of the initial subframe configuration type into the uplink transmission subframe or the downlink transmission subframe, and determines the candidate subframe configuration type.

2. The method of claim 1, wherein before the RN performs data transceiving interaction with the DeNB by using the first subframe configuration type, the method further comprises:

and the RN determines to start the RN and simultaneously receives and transmits uplink and downlink data.

3. The method of claim 2, wherein the RN determines to turn on a function of simultaneously transceiving uplink and downlink data, and the method comprises:

when the RN starts the relay function, the RN starts the function of simultaneously receiving and transmitting uplink and downlink data; or,

after the RN starts the relay function, determining to start the RN and simultaneously receive and transmit uplink and downlink data according to the network state information; or,

and after the RN starts the relay function, starting the RN function of simultaneously receiving and transmitting the uplink and downlink data according to the instruction of starting the RN function of simultaneously receiving and transmitting the uplink and downlink data, which is sent by the DeNB.

4. The method of claim 3, wherein before the RN performs data transceiving interaction with the DeNB by using the first subframe configuration type, the method further comprises:

the RN sends a first notification message to the DeNB, the first notification message contains an indication for starting the function of simultaneously receiving and sending uplink and downlink data by the RN, and the RN receives the first subframe configuration type and the second subframe configuration type sent by the DeNB according to the indication;

correspondingly, the RN, using the second subframe configuration type, further includes, before performing interaction of data transceiving with the UE:

the RN sends a second notification message to the UE, wherein the second notification message comprises the second subframe configuration type, so that the UE adopts the second subframe configuration type to perform data transceiving interaction with the RN;

or,

the RN, using the first subframe configuration type, further includes, before performing interaction of data transceiving with the DeNB:

the RN sends a third notification message to the DeNB, wherein the third notification message comprises an indication for starting the function of simultaneously receiving and transmitting uplink and downlink data of the RN and the configuration type of the first subframe;

correspondingly, the RN, using the second subframe configuration type, further includes, before performing interaction of data transceiving with the UE:

the RN sends a fourth notification message to the UE, wherein the fourth notification message comprises the second subframe configuration type, so that the UE adopts the second subframe configuration type to perform data transceiving interaction with the RN;

or,

the RN, using the first subframe configuration type, further includes, before performing interaction of data transceiving with the DeNB:

the RN receives a fifth notification message sent by the DeNB, wherein the fifth notification message comprises an indication sent by the DeNB for starting the RN to simultaneously receive and transmit uplink and downlink data, the first subframe configuration type and the second subframe configuration type;

correspondingly, the RN, using the second subframe configuration type, further includes, before performing interaction of data transceiving with the UE:

and the RN sends a sixth notification message to the UE, wherein the sixth notification message comprises the second subframe configuration type, so that the UE adopts the second subframe configuration type to perform data transceiving interaction with the RN.

5. The method of claim 4, wherein the RN determines the first subframe configuration type and the second subframe configuration type according to an initial subframe configuration type, and wherein the RN is located before the RN sends a third notification message to the DeNB.

6. The method of claim 1, wherein the subframe configuration type modification manner comprises:

performing silent muteing processing on the part of the subframe configuration type to be modified which conflicts with the reference subframe configuration type or the conflicting subframes; or,

and modifying the subframe which conflicts with the reference subframe configuration type in the subframe configuration type to be modified into the subframe which does not conflict with the reference subframe configuration type.

7. The method according to any of claims 1-6, wherein the RN performs data transceiving interaction with the DeNB by using the first subframe configuration type, and the method comprises:

the RN performs data transceiving interaction with the DeNB by adopting the first subframe configuration type when a preset application time arrives;

the RN adopts a second subframe configuration type to perform data transceiving interaction with the UE, and the method comprises the following steps:

and the RN performs data transceiving interaction with the UE by adopting the second subframe configuration type when the preset application time arrives.

8. The method according to claim 4 or 5, wherein the first notification message, the third notification message, or the fifth notification message further includes a subframe configuration type application time;

the RN performs data transceiving interaction with the DeNB by adopting a first subframe configuration type, and the method comprises the following steps:

when the application time of the subframe configuration type arrives, the RN performs data transceiving interaction with the DeNB by adopting the first subframe configuration type;

the second notification message, the fourth notification message or the sixth notification message further includes the subframe configuration type application time;

the RN adopts a second subframe configuration type to perform data transceiving interaction with the UE, and the method comprises the following steps:

and when the application time of the subframe configuration type arrives, the RN adopts the second subframe configuration type to perform data transceiving interaction with the UE.

9. A method for transmitting and receiving data, comprising:

the method comprises the steps that a host node DeNB determines to start a relay node RN and simultaneously receives and transmits uplink and downlink data;

the DeNB adopts a first subframe configuration type to perform data transceiving interaction with the RN;

the DeNB determines the first subframe configuration type and the second subframe configuration type according to the initial subframe configuration type, and the method comprises the following steps:

the DeNB determines to adopt an initial subframe configuration type as the second subframe configuration type; the DeNB determines a candidate subframe configuration type according to an initial subframe configuration type, modifies a subframe configuration type to be modified by taking the second subframe configuration type as a reference subframe configuration type according to a subframe configuration type modification mode, and determines the first subframe configuration type, wherein the subframe configuration type to be modified is the candidate subframe configuration type;

or,

the DeNB determines to adopt an initial subframe configuration type as the first subframe configuration type; the DeNB determines a candidate subframe configuration type according to an initial subframe configuration type, modifies a subframe configuration type to be modified by taking the first subframe configuration type as a reference subframe configuration type according to a subframe configuration type modification mode, and determines a second subframe configuration type, wherein the subframe configuration type to be modified is the candidate subframe configuration type;

or,

the DeNB determines a candidate subframe configuration type according to the initial subframe configuration type, and takes the candidate subframe configuration type as the second subframe configuration type; the DeNB modifies the subframe configuration type to be modified according to a subframe configuration type modification mode by taking the second subframe configuration type as a reference subframe configuration type, and determines the first subframe configuration type, wherein the subframe configuration type to be modified is the initial subframe configuration type;

the method for determining the candidate subframe configuration type by the DeNB according to the initial subframe configuration type comprises the following steps:

the DeNB interchanges a downlink transmission subframe and an uplink transmission subframe of an initial subframe configuration type, leaves a special subframe of the initial subframe configuration type as a blank, and determines a candidate subframe configuration type according to a standard subframe configuration type list; or,

and the DeNB interchanges the uplink subframe and the downlink subframe of the initial subframe configuration type, sets a special subframe between the downlink transmission subframe and the uplink transmission subframe, converts the special subframe of the initial subframe configuration type into the uplink transmission subframe or the downlink transmission subframe, and determines the candidate subframe configuration type.

10. The method of claim 9, wherein the DeNB determining to turn on the RN function for simultaneously transceiving uplink and downlink data comprises:

after the RN starts the relay function, the DeNB determines to start the RN and simultaneously transmit and receive uplink and downlink data according to network state information; or,

and the DeNB determines to start the RN and simultaneously receive and transmit the uplink and downlink data according to the indication sent by the RN and used for starting the RN and simultaneously receive and transmit the uplink and downlink data.

11. The method of claim 10, wherein the DeNB employs a first subframe configuration type, and further comprises, before interacting with the RN for data transceiving:

the DeNB receives a first notification message sent by the RN, the first notification message contains an indication for starting the function of simultaneously receiving and transmitting uplink and downlink data by the RN, and the DeNB sends the first subframe configuration type and the second subframe configuration type to the RN according to the indication;

or,

the DeNB receives a third notification message sent by the RN, wherein the third notification message comprises an indication for starting the RN to simultaneously receive and transmit uplink and downlink data and the first subframe configuration type;

or,

and the DeNB sends a fifth notification message to the RN, wherein the fifth notification message comprises an indication for starting the RN to simultaneously receive and transmit uplink and downlink data, the first subframe configuration type and the second subframe configuration type.

12. The method of claim 11, wherein the DeNB determines the first subframe configuration type and the second subframe configuration type according to an initial subframe configuration type, and is located before the DeNB sends a fifth notification message to the RN.

13. The method of claim 9, wherein the subframe configuration type modification manner comprises:

performing silent muteing processing on the part of the subframe configuration type to be modified which conflicts with the reference subframe configuration type or the conflicting subframes; or,

and modifying the subframe which conflicts with the reference subframe configuration type in the subframe configuration type to be modified into the subframe which does not conflict with the reference subframe configuration type.

14. The method according to any of claims 9-13, wherein the DeNB performs data transceiving interaction with the RN using a first subframe configuration type, including:

and the DeNB adopts the first subframe configuration type when a preset application time arrives and interacts with the RN for data transceiving.

15. The method according to claim 11 or 12, wherein the first notification message, the third notification message, or the fifth notification message further includes a subframe configuration type application time;

the DeNB adopts a first subframe configuration type to perform data transceiving interaction with the RN, and the method comprises the following steps:

and the DeNB adopts the first subframe configuration type to perform data transceiving interaction with the RN when the subframe configuration type application time arrives.

16. A relay node, comprising:

the first processing module is used for carrying out data transceiving interaction with the donor node DeNB by adopting a first subframe configuration type;

the second processing module is used for carrying out data transceiving interaction with the user equipment UE by adopting a second subframe configuration type;

wherein the first subframe configuration type is different from a second subframe configuration type;

a configuration module specifically configured to: determining to adopt an initial subframe configuration type as the second subframe configuration type; determining a candidate subframe configuration type according to an initial subframe configuration type, modifying a subframe configuration type to be modified by taking the second subframe configuration type as a reference subframe configuration type according to a subframe configuration type modification mode, and determining the first subframe configuration type, wherein the subframe configuration type to be modified is the candidate subframe configuration type;

or,

the configuration module is specifically configured to: determining to adopt an initial subframe configuration type as the first subframe configuration type; determining a candidate subframe configuration type according to an initial subframe configuration type, modifying a subframe configuration type to be modified by taking the first subframe configuration type as a reference subframe configuration type according to a subframe configuration type modification mode, and determining a second subframe configuration type, wherein the subframe configuration type to be modified is the candidate subframe configuration type;

or,

the configuration module is specifically configured to: determining a candidate subframe configuration type according to the initial subframe configuration type, and taking the candidate subframe configuration type as the second subframe configuration type; modifying the subframe configuration type to be modified according to a subframe configuration type modification mode by taking the second subframe configuration type as a reference subframe configuration type, and determining the first subframe configuration type, wherein the subframe configuration type to be modified is the initial subframe configuration type;

determining a candidate subframe configuration type according to the initial subframe configuration type comprises the following steps:

exchanging a downlink transmission subframe and an uplink transmission subframe of an initial subframe configuration type, reserving a special subframe of the initial subframe configuration type as a blank, and determining a candidate subframe configuration type according to a standard subframe configuration type list; or,

the method comprises the steps of carrying out conversion on an uplink subframe and a downlink subframe of an initial subframe configuration type, setting a special subframe between the conversion of the downlink transmission subframe and the uplink transmission subframe, converting the special subframe of the initial subframe configuration type into the uplink transmission subframe or the downlink transmission subframe, and determining a candidate subframe configuration type.

17. The relay node of claim 16, further comprising:

and the determining module is used for determining to start the function of simultaneously transceiving uplink and downlink data of the relay node RN before the first processing module adopts the first subframe configuration type to perform data transceiving interaction with the DeNB.

18. The relay node according to claim 17, wherein the determining module is specifically configured to: when the relay function is started, the RN is started to simultaneously receive and transmit uplink and downlink data; or,

after the relay function is started, determining to start the RN and simultaneously transmit and receive uplink and downlink data according to the network state information; or,

and after the relay function is started, starting the function of simultaneously receiving and transmitting uplink and downlink data by the RN according to the instruction of starting the function of simultaneously receiving and transmitting uplink and downlink data by the RN, which is sent by the DeNB.

19. The relay node of claim 18, wherein the first processing module is further configured to send a first notification message to the DeNB, where the first notification message includes an indication to start a function of the RN to simultaneously receive and transmit uplink and downlink data, and receive the first subframe configuration type and the second subframe configuration type sent by the DeNB according to the indication;

correspondingly, the second processing module is further configured to send a second notification message to the UE, where the second notification message includes the second subframe configuration type, so that the UE performs data transceiving interaction with the RN by using the second subframe configuration type;

or,

the first processing module is further configured to send a third notification message to the DeNB, where the third notification message includes an indication for starting a function of the RN to simultaneously receive and transmit uplink and downlink data, and the first subframe configuration type;

correspondingly, the second processing module is further configured to send a fourth notification message to the UE, where the fourth notification message includes the second subframe configuration type, so that the UE performs data transceiving interaction with the RN by using the second subframe configuration type;

or,

the first processing module is further configured to receive a fifth notification message sent by the DeNB, where the fifth notification message includes an indication that the DeNB starts an RN and simultaneously receives and transmits uplink and downlink data, the indication being sent by the DeNB, and the first subframe configuration type and the second subframe configuration type;

correspondingly, the second processing module is further configured to send a sixth notification message to the UE, where the sixth notification message includes the second subframe configuration type, so that the UE performs data transceiving interaction with the RN by using the second subframe configuration type.

20. The relay node of claim 19, wherein the configuration module determines the first subframe configuration type and the second subframe configuration type according to an initial subframe configuration type before the first processing module sends a third notification message to the DeNB.

21. The relay node according to claim 16, wherein the subframe configuration type modification manner includes:

performing silent muteing processing on the part of the subframe configuration type to be modified which conflicts with the reference subframe configuration type or the conflicting subframes; or,

and modifying the subframe which conflicts with the reference subframe configuration type in the subframe configuration type to be modified into the subframe which does not conflict with the reference subframe configuration type.

22. The relay node according to any of claims 16 to 21, wherein the first processing module is specifically configured to perform data transceiving interaction with the DeNB by using the first subframe configuration type when a preset application time arrives;

the second processing module is specifically configured to perform data transceiving interaction with the UE by using the second subframe configuration type when the preset application time arrives.

23. The relay node according to claim 19 or 20, wherein the first notification message, the third notification message, or the fifth notification message further includes a subframe configuration type application time;

the first processing module is specifically configured to perform data transceiving interaction with the DeNB by using the first subframe configuration type when the subframe configuration type application time arrives;

the second notification message, the fourth notification message or the sixth notification message further includes the subframe configuration type application time;

the second processing module is specifically configured to perform data transceiving interaction with the UE by using the second subframe configuration type when the subframe configuration type application time arrives.

24. A base station, comprising:

the determining module is used for determining to start the function of simultaneously receiving and transmitting uplink and downlink data of the relay node RN;

the processing module is used for carrying out data transceiving interaction with the RN by adopting a first subframe configuration type;

a configuration module specifically configured to: determining to adopt the initial subframe configuration type as a second subframe configuration type; determining a candidate subframe configuration type according to an initial subframe configuration type, modifying a subframe configuration type to be modified by taking the second subframe configuration type as a reference subframe configuration type according to a subframe configuration type modification mode, and determining the first subframe configuration type, wherein the subframe configuration type to be modified is the candidate subframe configuration type;

or,

the configuration module is specifically configured to: determining to adopt an initial subframe configuration type as the first subframe configuration type; determining a candidate subframe configuration type according to an initial subframe configuration type, modifying a subframe configuration type to be modified by taking the first subframe configuration type as a reference subframe configuration type according to a subframe configuration type modification mode, and determining a second subframe configuration type, wherein the subframe configuration type to be modified is the candidate subframe configuration type;

or,

the configuration module is specifically configured to: determining a candidate subframe configuration type according to the initial subframe configuration type, and taking the candidate subframe configuration type as the second subframe configuration type; modifying the subframe configuration type to be modified according to a subframe configuration type modification mode by taking the second subframe configuration type as a reference subframe configuration type, and determining the first subframe configuration type, wherein the subframe configuration type to be modified is the initial subframe configuration type;

determining a candidate subframe configuration type according to the initial subframe configuration type comprises the following steps:

exchanging a downlink transmission subframe and an uplink transmission subframe of an initial subframe configuration type, reserving a special subframe of the initial subframe configuration type as a blank, and determining a candidate subframe configuration type according to a standard subframe configuration type list; or,

the method comprises the steps of carrying out conversion on an uplink subframe and a downlink subframe of an initial subframe configuration type, setting a special subframe between the conversion of the downlink transmission subframe and the uplink transmission subframe, converting the special subframe of the initial subframe configuration type into the uplink transmission subframe or the downlink transmission subframe, and determining a candidate subframe configuration type.

25. The base station of claim 24, wherein the determining module is specifically configured to: after the RN starts the relay function, determining to start the RN and simultaneously receive and transmit uplink and downlink data according to the network state information; or,

and determining to start the RN and simultaneously receive and transmit the uplink and downlink data function according to the indication sent by the RN and used for starting the RN and simultaneously receive and transmit the uplink and downlink data function.

26. The base station of claim 25, wherein the processing module is further configured to:

receiving a first notification message sent by the RN, wherein the first notification message comprises an indication for starting the function of simultaneously receiving and transmitting uplink and downlink data by the RN, and sending the first subframe configuration type and the second subframe configuration type to the RN according to the indication;

or,

receiving a third notification message sent by the RN, wherein the third notification message comprises an indication for starting the RN to simultaneously receive and transmit uplink and downlink data and the first subframe configuration type;

or,

and sending a fifth notification message to the RN, wherein the fifth notification message comprises an indication for starting the function of simultaneously receiving and transmitting uplink and downlink data by the RN, the first subframe configuration type and the second subframe configuration type.

27. The base station of claim 26, wherein the configuration module determines the first subframe configuration type and the second subframe configuration type according to an initial subframe configuration type, and is located before the base station sends a fifth notification message to the RN.

28. The base station of claim 24, wherein the subframe configuration type modification manner comprises:

performing silent muteing processing on the part of the subframe configuration type to be modified which conflicts with the reference subframe configuration type or the conflicting subframes; or,

and modifying the subframe which conflicts with the reference subframe configuration type in the subframe configuration type to be modified into the subframe which does not conflict with the reference subframe configuration type.

29. The base station according to any of claims 24 to 28, wherein the processing module is specifically configured to perform data transceiving interaction with the RN by using the first subframe configuration type when a preset application time arrives.

30. The base station according to claim 26 or 27, wherein the first notification message, the third notification message, or the fifth notification message further includes a subframe configuration type application time;

the processing module is specifically configured to perform data transceiving interaction with the RN by using the first subframe configuration type when the subframe configuration type application time arrives.