CN104185282B

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

Info

Publication number: CN104185282B
Application number: CN201310201547.3A
Authority: CN
Inventors: 任亚珍; 李铮铮; 陈卫民
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-05-27
Filing date: 2013-05-27
Publication date: 2017-12-01
Anticipated expiration: 2033-05-27
Also published as: CN104185282A

Abstract

The embodiment of the present invention provides a kind of data receiving-transmitting method, via node and base station, wherein, methods described includes：Via node uses the first sub-frame configuration type, and interacting for data transmit-receive is carried out with host base station；The via node uses the second sub-frame configuration type, and interacting for data transmit-receive is carried out with user equipment；Wherein, the first sub-frame configuration type is different from the second sub-frame configuration type.Data receiving-transmitting method, via node and base station provided in an embodiment of the present invention, realize via node while receive and dispatch up-downgoing data function, improve system spectral resources utilization rate.

Description

Data receiving and transmitting method, relay node and base station

Technical Field

The embodiments of the present invention relate to communication technologies, and in particular, to a data transceiving method, a relay node, and a base station.

Background

In order to increase the user data transmission rate, enlarge the coverage area of a large area and solve the blind area coverage, a Relay (Relay) technology and a basic system architecture and functions thereof are introduced into release 10 of a 3rd Generation Partnership Project (3 GPP) Long Term Evolution (Long Term Evolution, LTE for short) technology, and the Relay technology becomes one of key technologies of enhanced Time Division Long Term Evolution (TD-LTE-a).

The Relay technology is that a Relay Node (RN) is introduced between a User Equipment (User Equipment, abbreviated as UE) and a base station, the RN realizes data forwarding between the UE and the base station through a time division multiplexing manner, a data link between the UE and the base station is divided into two parts, namely, an access link and a return link, by the RN, wherein the base station which establishes a wireless connection with the RN is called a host base station (Donor evolution NodeB, abbreviated as DeNB), an air interface link between the DeNB and the RN is a return link, an air interface link between the RN and the UE is an access link, and the access link and the return link use the same frequency band.

However, the existing data transmission mode causes low utilization rate of system spectrum resources.

Disclosure of Invention

The embodiment of the invention provides a data transceiving method, a relay node and a base station, so that the relay node can simultaneously transmit and receive uplink data and downlink data.

In a first aspect, an embodiment of the present invention provides a data transceiving method, where the method includes:

the RN performs data transceiving interaction with the DeNB by adopting a first subframe configuration type;

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

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

In a first possible implementation manner of the first aspect, before the RN performs data transceiving interaction with the DeNB by using the first subframe configuration type, the method further includes: and the RN determines to start the RN and simultaneously receives and transmits uplink and downlink data.

According to a first possible implementation manner of the first aspect, in a second possible implementation manner, the determining, by the RN, to start a function of simultaneously transceiving uplink and downlink data by the RN includes:

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.

According to the first or second possible implementation manner of the first aspect, in a third possible implementation manner, before the performing interaction of data transceiving with the DeNB by using the first subframe configuration type, the method further includes: 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.

According to a third possible implementation manner of the first aspect, in a fourth possible implementation manner, before the sending, by the RN, the third notification message to the DeNB, the method further includes: and the RN determines the first subframe configuration type and the second subframe configuration type according to an initial subframe configuration type.

According to a fourth possible implementation manner of the first aspect, in a fifth possible implementation manner, the determining, by the RN, the first subframe configuration type and the second subframe configuration type according to an initial subframe configuration type includes:

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; and 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.

According to a fifth possible implementation manner of the first aspect, in a sixth possible implementation manner, the determining, by the RN, a candidate subframe configuration type according to the initial subframe configuration type includes: 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.

According to a fifth possible implementation manner of the first aspect, in a seventh possible implementation manner, 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.

According to a fourth possible implementation manner of the first aspect, in an eighth possible implementation manner, the determining, by the RN, the first subframe configuration type and the second subframe configuration type according to an initial subframe configuration type includes:

the RN determines to adopt an initial subframe configuration type as the first subframe configuration type; searching the second subframe configuration type corresponding to the initial subframe configuration type in a mapping table;

or,

the RN determines to adopt an initial subframe configuration type as the second subframe configuration type; searching the first subframe configuration type corresponding to the initial subframe configuration type in a mapping table;

or,

and the RN searches the first subframe configuration type and the second subframe configuration type in a mapping table.

According to the first aspect and any one of the first to eighth possible implementation manners of the first aspect, in a ninth possible implementation manner, the interacting, by the RN, with the DeNB for data transceiving by using the first subframe configuration type includes: 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.

According to any one of the third to eighth possible implementation manners of the first aspect, in a tenth possible implementation manner, 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.

In a second aspect, an embodiment of the present invention provides a data transceiving method, where the method includes: 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; and the DeNB adopts a first subframe configuration type to perform data transceiving interaction with the RN.

In a first possible implementation manner of the second aspect, the determining, by the DeNB, to start a function of simultaneously transceiving uplink and downlink data by the RN includes:

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.

According to the first possible implementation manner of the second aspect, in a second possible implementation manner, before the performing interaction of data transmission and reception with the RN, the DeNB further includes, by using a first subframe configuration type:

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.

According to a second possible implementation manner of the second aspect, in a third possible implementation manner, before the sending, by the DeNB, the fifth notification message to the RN, the method further includes: and the DeNB determines the first subframe configuration type and the second subframe configuration type according to an initial subframe configuration type.

According to a third possible implementation manner of the second aspect, in a fourth possible implementation manner, the determining, by the DeNB, the first subframe configuration type and the second subframe configuration type according to an initial subframe configuration type includes:

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; and 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.

According to a fourth possible implementation manner of the second aspect, in a fifth possible implementation manner, the determining, by the DeNB, a candidate subframe configuration type according to the initial subframe configuration type includes:

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.

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

According to a third possible implementation manner of the second aspect, in a seventh possible implementation manner, the determining, by the DeNB, the first subframe configuration type and the second subframe configuration type according to an initial subframe configuration type includes:

the DeNB determines to adopt an initial subframe configuration type as the first subframe configuration type; searching the second subframe configuration type corresponding to the initial subframe configuration type in a mapping table;

or,

the DeNB determines to adopt an initial subframe configuration type as the second subframe configuration type; searching the first subframe configuration type corresponding to the initial subframe configuration type in a mapping table;

or,

and the DeNB searches 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 implementation manners of the second aspect, in an eighth possible implementation manner, the interacting between the DeNB and the RN for data transceiving by using the first subframe configuration type includes: and the DeNB adopts the first subframe configuration type when a preset application time arrives and interacts with the RN for data transceiving.

According to third to seventh possible implementation manners of the second aspect, in a ninth possible implementation manner, 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.

In a third aspect, an embodiment of the present invention provides a relay node, where the relay node includes: 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.

In a first possible implementation manner of the third aspect, the method further includes: 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.

According to the first possible implementation manner of the third aspect, in a second possible implementation manner, 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.

According to the first or second possible implementation manner of the third aspect, in a third possible implementation manner, the first processing module is further configured to send a first notification message to the DeNB, where the first notification message includes an indication for starting 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.

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

According to a fourth possible implementation manner of the third aspect, in a fifth possible implementation manner, the configuration module is 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; and 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.

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

the configuration module is specifically configured to swap uplink and downlink subframes of an initial subframe configuration type, set a special subframe between downlink transmission subframes and uplink transmission subframes, convert the special subframe of the initial subframe configuration type into an uplink transmission subframe or a downlink transmission subframe, and determine a candidate subframe configuration type.

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

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

determining to adopt an initial subframe configuration type as the first subframe configuration type; searching the second subframe configuration type corresponding to the initial subframe configuration type in a mapping table;

or,

the configuration module is specifically configured to: determining to adopt an initial subframe configuration type as the second subframe configuration type; searching the first subframe configuration type corresponding to the initial subframe configuration type in a mapping table;

or,

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

According to the third aspect and any one of the first to eighth possible implementation manners of the third aspect, in a ninth possible implementation manner, 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.

According to any one of the third to eighth possible implementation manners of the third aspect, in a tenth possible implementation manner, 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 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.

In a fourth aspect, an embodiment of the present invention provides a base station, where the base station includes: 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; and the processing module is used for performing data transceiving interaction with the RN by adopting a first subframe configuration type.

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

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.

According to the first possible implementation manner of the fourth aspect, in a second possible implementation manner, 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 the first subframe configuration type and the second subframe configuration type are sent 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.

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

According to a third possible implementation manner of the fourth aspect, in a fourth possible implementation manner, the configuration module is 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; and 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.

According to a fourth possible implementation manner of the fourth aspect, in a fifth possible implementation manner, the configuration module is specifically configured to: 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 configuration module is specifically configured to: 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.

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

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

or, the configuration module is specifically configured to: determining to adopt an initial subframe configuration type as the second subframe configuration type; searching the first subframe configuration type corresponding to the initial subframe configuration type in a mapping table;

or,

According to the fourth aspect and the first to seventh possible implementation manners of the fourth aspect, in an eighth possible implementation manner, the processing module is specifically configured to employ the first subframe configuration type to perform data transceiving interaction with the RN when a preset application time arrives.

According to the third to seventh possible implementation manners of the fourth aspect, in a ninth possible implementation manner, 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.

According to the data transceiving method, the relay node and the base station provided by the embodiment of the 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, so that the RN can perform data transceiving interaction with the UE by adopting the second subframe configuration type while performing data transceiving interaction with the DeNB by adopting the first subframe configuration type, the function of simultaneously transceiving uplink and downlink data by the RN is realized, and the utilization rate of system spectrum resources is high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a flowchart of a first embodiment of a data transmission method according to the present invention;

fig. 2a is a schematic diagram illustrating the operation principle of the conventional RN data transmission method;

fig. 2b is a schematic diagram of a working principle of a first embodiment of a data transmission method according to the present invention;

fig. 3 is a flowchart of a second embodiment of a data transmission method according to the present invention;

fig. 4 is a signaling flowchart of a third embodiment of a data transmission method provided in the present invention;

fig. 5a is a schematic diagram of a subframe configuration process in a processing method 1 according to a third embodiment of the data transmission method provided in the present invention;

fig. 5b is a schematic diagram illustrating a candidate subframe configuration type selection method in the processing method 2 according to the third embodiment of the data transmission method of the present invention;

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

fig. 6 is a schematic structural diagram of a relay node according to a first embodiment of the present invention;

fig. 7 is a schematic structural diagram of a second embodiment of a relay node provided in the present invention;

fig. 8 is a schematic structural diagram of a base station according to a first embodiment of the present invention;

fig. 9 is a schematic structural diagram of a second base station according to an embodiment of the present invention.

Detailed Description

In order to make the objects, 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 with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 is a flowchart of a first embodiment of a data transmission method according to the present invention. The data transmission method of the embodiment is suitable for a scenario that the RN realizes data forwarding between the UE and the base station in a time division multiplexing mode. As shown in fig. 1, the method of the present embodiment includes:

101. and the RN performs data transceiving interaction with the DeNB by adopting a first subframe configuration type.

102. The RN adopts a second subframe configuration type to perform data transceiving interaction with the UE; wherein the first subframe configuration type is different from a second subframe configuration type.

Specifically, the first subframe configuration type refers to a subframe configuration type configured on a backhaul link between the DeNB and the RN; and the second subframe configuration type refers to a subframe configuration type configured on an access link between the RN and the UE. The first subframe configuration type and the second subframe configuration type are different, namely that: the two may use different subframe ratios, or the two may use the same subframe ratio but different subframe offsets. 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, a backhaul link and an access link use the same frequency band, and in order to avoid self-interference, an RN cannot receive uplink data sent by a UE when receiving downlink data sent by a base station, or an RN cannot simultaneously send downlink data to a UE when sending uplink data to a base station. Fig. 2a is a schematic diagram illustrating an operation principle of a conventional RN data transmission method. As shown in fig. 2a, the conventional data transmission method is: in a time slot (1), a DeNB sends downlink data to an RN; transmitting downlink data to the UE by the RN in a time slot (2); receiving uplink data sent by UE by RN in time slot (3); receiving uplink data sent by the RN at a time slot (4) DeNB; the time slots (1), (2), (3) and (4) are respectively 4 different time slots. In order to ensure the data transmission mode, the conventional 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 adopts one of seven standard configurations. Table 1 is a standard uplink and downlink subframe switching point configuration table. As shown in table 1, where D denotes a downlink transmission subframe, U denotes an uplink transmission subframe, and S denotes a special subframe. The special subframe consists of DwPTS, GP and UpPTS, the DwPTS is used for downlink transmission, the UpPTS is used for uplink transmission, and the lengths of the DwPTS and the UpPTS can be matched.

Table 1, uplink and downlink subframe switching point configuration table

In the embodiment of the present invention, a first subframe configuration type is configured for the backhaul link, and a second subframe configuration type different from the first subframe configuration type is configured for the access link, that is, different subframe configuration types are configured on the backhaul link and the access link, respectively. And the RN performs data transceiving interaction with the DeNB by adopting the first subframe configuration type and performs data transceiving interaction with the UE by adopting the second subframe configuration type, so that the function of simultaneously transceiving uplink and downlink data by the RN is realized. The RN receives and transmits uplink and downlink data simultaneously, namely, the RN can receive the uplink data transmitted by the UE while receiving the downlink data transmitted by the DeNB at the same time; or, the RN may transmit downlink data to the UE while transmitting uplink data to the DeNB. Fig. 2b is a schematic diagram of a working principle of a first embodiment of the data transmission method according to the present invention. As shown in fig. 2b, in time slot (a), the RN receives downlink data transmitted by the DeNB and uplink data transmitted by the UE simultaneously; and in the time slot (b), the RN simultaneously transmits uplink data to the DeNB and transmits downlink data to the UE. Slot (a) and slot (b) are two different slots.

According to the data receiving and sending method provided by the embodiment of the invention, the subframe configuration types and the related signaling of the return link and the access link are configured, the first subframe configuration type is configured for the return link, and the second subframe configuration type different from the first subframe configuration type is configured for the access link, so that the RN can adopt the second subframe configuration type to interact with the UE for data receiving and sending while adopting the first subframe configuration type to interact with the DeNB for data receiving and sending, the function of simultaneously receiving and sending uplink and downlink data by the RN is realized, and the utilization rate of the spectrum resources of the system is high.

On the basis of the above embodiments, whether to turn on the function of simultaneously transceiving uplink and downlink data by the RN, and when to turn on the function are optional, and the turning on or off the function may be determined by the RN or the network side. The network side refers to DeNB or Operation and Maintenance (OAM). When the DeNB or the RN decides to open or close the function, the corresponding RN or the DeNB is informed to open/close the function by sending an instruction for opening or closing the function of simultaneously transmitting and receiving uplink and downlink data by the RN. The OAM may implement the data transmission and reception method according to any embodiment of the present invention.

The implementation manner of the RN or DeNB determining to start the function of simultaneously transceiving uplink and downlink data by the RN may include at least the following three manners:

implementation mode 1: and when the RN starts the relay function, the RN starts the function of simultaneously receiving and transmitting uplink and downlink data.

Implementation mode 2: after the RN starts the relay function, the RN determines to start the function of simultaneously receiving and transmitting uplink and downlink data according to the network state information.

Implementation mode 3: and 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 the network state information.

In implementation mode 1, the RN is configured as a mode of simultaneously transceiving uplink and downlink data by default, and when the RN accesses the DeNB to start the relay function, that is, the RN-eNB function, the RN starts the function of simultaneously transceiving uplink and downlink data. In implementation mode 2, the RN is configured as a conventional time division half duplex mode by default, after the RN accesses the DeNB to start the relay function and starts data transmission, the RN determines to start or close the function of simultaneously receiving and transmitting uplink and downlink data according to the network state information, for example, when the data traffic increases to a preset threshold and a higher system spectrum resource utilization rate is required, the RN determines to start the function of simultaneously receiving and transmitting uplink and downlink data. For the implementation mode 1 and the implementation mode 2, after the RN determines to start the RN and simultaneously receive and transmit uplink and downlink data, the RN sends an instruction for starting the RN and simultaneously receiving and transmitting the uplink and downlink data to the DeNB, so that the DeNB determines to start the RN and simultaneously receiving and transmitting the uplink and downlink data according to the instruction; and the DeNB determines to start the RN to simultaneously receive and transmit uplink and downlink data according to the indication. For the implementation mode 3, after determining to start the RN and simultaneously receive and transmit the uplink and downlink data, the DeNB sends an instruction for starting the RN and simultaneously receiving and transmitting the uplink and downlink data to the RN, so that the RN determines to start the RN and simultaneously receiving and transmitting the uplink and downlink data according to the instruction; and the RN determines to start the function of simultaneously receiving and transmitting uplink and downlink data according to the indication.

After the function of simultaneously receiving and transmitting uplink and downlink data by the RN is started, the RN can be closed according to the network state information.

After the RN or the DeNB determines to start the RN and simultaneously receive and transmit uplink and downlink data, different subframe configuration types are configured for a backhaul link and an access link according to an initial subframe configuration type, namely the first subframe configuration type and the second subframe configuration type are determined.

Specifically, the initial subframe configuration type refers to the same subframe configuration type used on the backhaul link and the access link before the function of the RN for simultaneously transceiving uplink and downlink data is turned on. There are two types of denbs that RN accesses: one is a base station that can simultaneously provide service for normal UE and RN, and the other is a base station that only provides service for RN. The operation of configuring different subframe configuration types for the backhaul link and the access link may be performed by the DeNB or the RN, wherein the configuration process may be any one of the following:

configuration mode 1: the DeNB or the RN determines to adopt an initial subframe configuration type as the second subframe configuration type; and the DeNB or the RN determines a candidate subframe configuration type according to the initial subframe configuration type, modifies the 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.

Configuration mode 2: the DeNB or the RN determines to adopt an initial subframe configuration type as the first subframe configuration type; and the DeNB or the RN determines a candidate subframe configuration type according to the initial subframe configuration type, modifies the 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 the second subframe configuration type, wherein the subframe configuration type to be modified is the candidate subframe configuration type.

Configuration mode 3: determining a candidate subframe configuration type by the DeNB or the RN according to the initial subframe configuration type, and taking the candidate subframe configuration type as the second subframe configuration type; and the DeNB or 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.

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

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

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

Aiming at the configuration mode 4, the configuration mode 5 or the configuration mode 6, a preset mapping table is respectively stored in the DeNB and the RN, and the mapping table records the corresponding relation between the DeNB subframe configuration type and the RN subframe configuration type and the corresponding relation between the subframe configuration type and the subframe configuration type modification method. When the DeNB or the RN decides or receives the indication of starting or closing the RN to simultaneously receive and transmit the uplink and downlink data, the DeNB or the RN which stores the mapping table searches the mapping table to perform corresponding processing and informs the RN or the DeNB. In the configuration mode 6, the first subframe configuration type and the second subframe configuration type planned in advance are stored in a mapping table.

In the above configuration modes 1 to 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:

selection mode 1: the DeNB or the RN carries out swapping on 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,

selection mode 2: and the DeNB 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.

In the above configuration modes 1 to 3, the subframe configuration type modification modes at least include the following two modification modes:

modification 1: and performing silencing (muting) on the part of the subframe configuration type to be modified, which conflicts with the reference subframe configuration type, or the conflicting subframes, wherein the silencing refers to performing data transceiving on the part or the subframes which do not conflict with each other.

Modification 2: modifying the subframe which conflicts with the reference subframe configuration type in the subframe configuration type to be modified into a subframe which does 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, performing muting (muting) on a part of the subframe configuration type to be modified that conflicts with the reference subframe configuration type or on a conflicting subframe, where muting refers to performing data transceiving on a part or subframe that does not conflict with each other; or, modifying the subframe which conflicts with the reference subframe configuration type in the subframe configuration type to be modified into a subframe which does not conflict with the reference subframe configuration type;

and if the DeNB simultaneously provides services for the UE and the RN, carrying out silencing treatment on the part of the subframe configuration type to be modified which conflicts with the reference subframe configuration type or the conflicting subframes.

The subframe configuration type modification mode can be determined by the DeNB when the second subframe configuration type is selected; or the RN determines and informs the DeNB at the same time when the second subframe configuration type is selected; or decided by the DeNB or RN according to the mapping table.

Based on the implementation mode of determining to start the RN to simultaneously transmit and receive uplink and downlink data and the configuration mode of configuring different subframe configuration types for the backhaul link and the access link, the information interaction schemes of the RN, the UE, and the DeNB may at least include the following three information interaction schemes:

information interaction scheme 1: corresponding to the technical solution of the foregoing implementation mode 1 or implementation mode 2, after the RN first determines to start the RN and simultaneously transmit and receive uplink and downlink data, the RN determines a first subframe configuration type and a second subframe configuration type according to an initial subframe configuration type; and sending the determined first subframe configuration type and an indication for starting the function of simultaneously transceiving uplink and downlink data by the RN to the DeNB: the RN sends a third notification message to the DeNB, 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; the DeNB receives a third notification message sent by the RN; correspondingly, 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.

And 2, information interaction scheme: corresponding to the technical solution of the foregoing implementation mode 1 or implementation mode 2, after the RN first determines to start the RN and simultaneously transmit and receive uplink and downlink data, a first notification message indicating to start the RN and simultaneously transmit and receive uplink and downlink data is sent to the DeNB; after receiving the first notification message, the DeNB determines a first subframe configuration type and a second subframe configuration type according to the initial subframe configuration type and sends the first subframe configuration type and the second subframe configuration type 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 containing a second subframe configuration type to the UE so that the UE adopts the second subframe configuration type to perform data transceiving interaction with the RN.

Information interaction scheme 3: corresponding to the technical solution of the above implementation mode 3, after the DeNB first determines to start the RN and simultaneously transmit and receive uplink and downlink data, the DeNB determines a first subframe configuration type and a second subframe configuration type according to a subframe configuration type of the current DeNB, that is, an initial subframe configuration type; 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; the RN receives the fifth notification message and determines to start the function of simultaneously receiving and transmitting uplink and downlink data according to the indication; and the RN sends a sixth notification message containing the second subframe configuration type to the UE so that the UE adopts the second subframe configuration type to perform data transceiving interaction with the RN.

Optionally, the first notification message and the fifth notification message further include: and the subframe serial numbers of the first subframe configuration type and the second subframe configuration type respectively correspond to the offset of the subframe serial numbers of the standard configuration types with the same proportion, so that the synchronization between the DeNB and the RN is ensured.

Optionally, the third notification message further includes: and the offset of the subframe serial number of the first subframe configuration type relative to the subframe serial number of the standard configuration type with the same ratio is used for ensuring the synchronization between the DeNB and the RN.

Optionally, the second notification message, the fourth notification message, or the sixth notification message further includes: and the offset of the subframe serial number of the second subframe configuration type relative to the subframe serial number of the standard configuration type with the same ratio is used for ensuring the synchronization between the DeNB and the RN.

When the RN simultaneously receives and transmits uplink and downlink data is turned on is optional, and an optional mode is that the turning-on time is preset: the RN performs data transceiving interaction with the DeNB by adopting the first subframe configuration type when a preset application time arrives; and the RN performs data transceiving interaction with the UE by adopting the second subframe configuration type when the preset application time arrives.

Another optional mode is: the starting time is determined by DeNB or RN which determines to start the RN and simultaneously transmit and receive uplink and downlink data.

Further, the first notification message, the third notification message, or the fifth notification message further includes a subframe configuration type application time; 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; correspondingly, the second notification message, the fourth notification message or the sixth notification message further includes the subframe configuration type application time; 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.

According to the data receiving and sending method provided by the embodiment of the invention, the RN carries out data receiving and sending interaction with the DeNB by adopting the first subframe configuration type and can simultaneously carry out data receiving and sending interaction with the UE by adopting the second subframe configuration type by configuring different subframe configuration types for the return link and the access link, so that the function of simultaneously receiving and sending uplink and downlink data by the RN is realized, and the utilization rate of system frequency spectrum resources is high.

Optionally, at a switching time when the RN turns on or turns off the RN and simultaneously receives and transmits uplink and downlink data, maintaining synchronization of subframe configuration type modification between the RN and the DeNB, so that synchronization between the DeNB and the RN is achieved, for example: when an RN or a DeNB sends an instruction for starting or closing the RN and simultaneously receiving and transmitting uplink and downlink data, a specific time slot is designated for simultaneously modifying the subframe configuration type; or after the RN or DeNB sends N time slots after the indication for turning on or off the RN to simultaneously transmit and receive uplink and downlink data, the subframe configuration type is modified at the same time, where N is a predetermined number. The above two schemes can be implemented by RN or DeNB delivering "modify subframe configuration indication at the same time".

Optionally, the isolation of the uplink and downlink receiving signals and the isolation of the uplink and downlink sending signals are realized through physical isolation; or the channel information is used for realizing the (quasi) orthogonality of the uplink and downlink receiving signals and the (quasi) orthogonality of the uplink and downlink sending signals; when the DeNB service UE and the RN service UE are far away from each other or are physically isolated from each other, the interference of the RN uplink receiving signal to the receiving signal of the DeNB service UE and the interference of the uplink transmitting signal of the DeNB service UE to the downlink receiving signal of the RN service UE can also be avoided.

Fig. 3 is a flowchart of a second embodiment of a data transmission method according to the present invention. The data transmission method of the embodiment is suitable for a scenario that the RN realizes data forwarding between the UE and the base station in a time division multiplexing mode. As shown in fig. 3, the method of the present embodiment includes:

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

302. And the DeNB adopts a first subframe configuration type to perform data transceiving interaction with the RN.

It should be noted that the operation of determining to start the function of the RN for simultaneously transceiving uplink and downlink data may also be implemented by OAM, for example, the following implementation may be implemented: the OAM determines to start the RN and simultaneously receive and transmit uplink and downlink data; and the DeNB adopts a first subframe configuration type to perform data transceiving interaction with the RN.

Fig. 4 is a signaling flowchart of a third embodiment of a data transmission method provided in the present invention. The embodiment is completed by matching the RN, the DeNB and the UE. As shown in fig. 4, the method of this embodiment includes:

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

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

Specifically, the function may be turned on or off by the RN or the network side, and the RN is taken as an example for description in this embodiment; the operation of configuring different subframe configuration types for the backhaul link and the access link may be performed by the DeNB or the RN, and the RN is taken as an example in this embodiment for description.

According to whether the backward compatibility of the UE needs to be ensured or not, the RN determines the processing modes of the first subframe configuration type and the second subframe configuration type according to the initial subframe configuration type at least comprises the following two modes:

treatment method 1: in order to ensure backward compatibility of the UE, the subframe configuration type of the access link adopts a standard configuration type specified by a protocol, and the subframe configuration type of the backhaul link may be modified to some extent on the basis of the standard configuration type. That is, the second subframe configuration type adopts the standard configuration type specified by the protocol, and the first subframe configuration type can be modified to some extent based on the standard configuration type

And the DeNB or the RN determines a candidate subframe configuration type according to the initial subframe configuration type and takes the candidate subframe configuration type as a 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 the RN may select one of them and notify the RN or the DeNB, or one of them may be statically configured by a mapping table. And after the second subframe configuration type is selected, modifying the subframe with the conflict between the initial subframe configuration type and the second subframe configuration type, and determining the first subframe configuration type. The subframe configuration type modification mode refers to modification mode 1 or modification mode 2 in the above embodiment.

And when the subframe with the configuration type of the initial subframe conflicting with the configuration type of the second subframe is a special subframe or conflicts with the special subframe with the configuration type of the second subframe, setting the silent part in the configuration type of the initial subframe as a corresponding DwPTS or UpPTS, and determining the silent duration by the configuration mode of the special subframe. The length of the special subframe DwPTS and the UpPTS adopts one of 9 configuration modes specified by the standard.

Fig. 5a is a schematic diagram of a subframe configuration process in a processing method 1 according to a third embodiment of the data transmission method. As shown in fig. 5a, the initial subframe configuration type is, for example, configuration 1 in table 1 in the above embodiment, and the candidate subframe configuration type to be selected may be configuration 0 or configuration 1. In fig. 5a, the candidate subframe configuration type is determined as configuration 1, and the initial subframe configuration type is modified, where a downlink transmission part DwPTS corresponding to subframe 1 (special subframe) of the initial subframe configuration type needs to be muted or the entire subframe needs to be muted, and 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 muted or the entire subframe needs to be muted, and similarly, subframe 6 and subframe 8 of the initial subframe configuration type need to be correspondingly processed; the modified initial subframe configuration type is the first subframe configuration type. In order to ensure synchronization between the DeNB and the RN, after the subframe configuration type and the subframe configuration type modification mode are selected, when the preset application time or the subframe configuration type application time is indicated, the offset of the subframe number of the second subframe configuration type relative to the subframe number of the standard configuration type with the same ratio needs to be indicated at the same time, and particularly, the subframe ratio is the same for the second subframe configuration type and the first subframe configuration type, but under the condition that the subframe offset is different, the subframe offset can be used for distinguishing the subframe configuration types of the backhaul link and the access link.

Treatment method 2: for the case of not considering the backward compatibility of the UE, 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 candidate subframe configuration type selection method in the processing method 2 according to the third embodiment of the data transmission method provided in the present invention. As shown in fig. 5b, the initial subframe configuration type is taken as configuration 1 as an example. The second subframe configuration type can be directly configured according to the initial subframe configuration type, the uplink subframe and the downlink subframe in the initial subframe configuration type are exchanged, a special subframe is arranged between the downlink subframe and the uplink subframe, the special subframe of the initial subframe configuration type is converted into the uplink subframe or the downlink subframe, and the second subframe configuration type is selected and determined; modifying the conflict part between the initial subframe configuration type and the second subframe configuration type; the modified initial subframe configuration type is the first subframe configuration type. The subframe configuration type modification mode can be determined by the DeNB when the second subframe configuration type is selected; or the RN determines and informs the DeNB at the same time when the second subframe configuration type is selected; or decided 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 according to the third embodiment of the data transmission method provided in the present invention. As shown in fig. 5c, the DeNB or RN determines to adopt an initial subframe configuration type as the first subframe configuration type; and the DeNB or the RN determines a candidate subframe configuration type according to the initial subframe configuration type, modifies the 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 the second subframe configuration type, wherein the subframe configuration type to be modified is the candidate subframe configuration type.

Adopting an initial subframe configuration type as a first subframe configuration type; and selecting a candidate subframe configuration type for the second subframe configuration type according to the initial subframe configuration type, wherein the candidate subframe configuration type is standard subframe configuration, and then modifying the subframe of the candidate subframe configuration type which conflicts with the first subframe configuration type, wherein the modified candidate subframe configuration type is the second subframe configuration type. In order to ensure synchronization between the DeNB and the RN, after the subframe configuration type and the subframe configuration type modification mode are selected, an offset of the subframe number of the second subframe configuration type from the subframe number of the standard configuration type with the same ratio needs to be indicated.

403. And the RN sends a third notification message to the DeNB, wherein the third notification message comprises an instruction for starting the RN to simultaneously receive and transmit uplink and downlink data and the first subframe configuration type, so that the DeNB adopts the first subframe configuration type to perform data receiving and transmitting interaction with the R when the preset application time or the subframe configuration type application time arrives according to the instruction for starting the RN to simultaneously receive and transmit uplink and downlink data.

404. And 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 when the preset application time or the subframe configuration type application time arrives.

405. And the RN adopts the first subframe configuration type to perform data transceiving interaction with the DeNB when a preset application time or the subframe configuration type application time arrives.

406. And the RN adopts the second subframe configuration type to perform data transceiving interaction with the UE when the preset application time or the subframe configuration type application time arrives.

Fig. 6 is a schematic structural diagram of a relay node according to a first embodiment of the present invention. As shown in fig. 6, the relay node 600 of the present embodiment includes: a first processing module 601 and a second processing module 602, wherein:

a first processing module 601, configured to perform data transceiving interaction with a DeNB by using a first subframe configuration type;

a second processing module 602, configured to perform data transceiving interaction with the UE using a second subframe configuration type; wherein the first subframe configuration type is different from a second subframe configuration type.

The relay node provided in the embodiment of the present invention may be configured to implement the technical solution of the data transmission method embodiment shown in fig. 1, and a specific process for implementing the data transmission method may refer to the specific description of the method embodiment shown in fig. 1, which is not described herein again.

According to the relay node provided by the embodiment of the invention, different subframe configuration types are configured for the return link and the access link, so that the RN can perform data transceiving interaction with the DeNB by adopting the first subframe configuration type, and can perform data transceiving interaction with the UE by adopting the second subframe configuration type, thereby realizing the function of simultaneously transceiving uplink and downlink data by the RN, and the utilization rate of system frequency spectrum resources is high.

Fig. 7 is a schematic structural diagram of a second embodiment of a relay node provided in the present invention. The relay node 700 of the present embodiment is implemented based on the above-described embodiments. As shown in fig. 7, the relay node 700 also includes a first processing module 601 and a second processing module 602 shown in fig. 6, and each module also has the functions described in the embodiment shown in fig. 6, and further, the relay node 700 further includes: a determining module 701, configured to determine to start a function of simultaneously transceiving uplink and downlink data by the RN before the first processing module performs data transceiving interaction with the DeNB by using the first subframe configuration type.

Further, the determining module 701 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 receive and transmit uplink and downlink data according to the network state information; or after the relay function is started, the function of simultaneously transmitting and receiving uplink and downlink data by the RN is started according to the instruction of starting the function of simultaneously transmitting and receiving uplink and downlink data by the RN, which is sent by the DeNB.

Further, the first processing module 601 is further configured to send a first notification message to the DeNB, where the first notification message includes an indication for starting an 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 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 performs data transceiving interaction with the RN by using the second subframe configuration type;

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 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 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 performs data transceiving interaction with the RN by using the second subframe configuration type;

or,

a first processing module 601, 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 to simultaneously receive and transmit uplink and downlink data, and the first subframe configuration type and the 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 performs data transceiving interaction with the RN by using the second subframe configuration type.

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

Further, the configuration module 702 is 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 702 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 702 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; and 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.

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

the configuration module 702 is specifically configured to swap an uplink subframe and a downlink subframe of an initial subframe configuration type, set a special subframe between a downlink transmission subframe and an uplink transmission subframe, convert the special subframe of the initial subframe configuration type into an uplink transmission subframe or a downlink transmission subframe, and determine a candidate subframe configuration type.

Further, the subframe configuration type modification method includes:

Further, the configuration module 702 is specifically configured to: determining to adopt an initial subframe configuration type as the first subframe configuration type; searching the second subframe configuration type corresponding to the initial subframe configuration type in a mapping table;

or,

the configuration module 702 is specifically configured to: determining to adopt an initial subframe configuration type as the second subframe configuration type; searching the first subframe configuration type corresponding to the initial subframe configuration type in a mapping table;

or,

the configuration module 702 is specifically configured to: and searching 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 perform data transceiving interaction with the DeNB by using the first subframe configuration type when a preset application time arrives;

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

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

a first processing module 601, 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 processing module 602 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.

The relay node provided in the embodiment of the present invention may be configured to execute the technical solution of any data transmission method embodiment of the present invention, and the specific process executed may refer to the specific description of the corresponding method embodiment, which is not described herein again.

Fig. 8 is a schematic structural diagram of a base station according to a first embodiment of the present invention. As shown in fig. 8, the base station 800 of the present embodiment includes: a determination module 801 and a processing module 802, wherein:

a determining module 801, configured to determine to start a function of the relay node RN for simultaneously receiving and transmitting uplink and downlink data;

a processing module 802, configured to perform data transceiving interaction with the RN by using a first subframe configuration type.

The base station provided in the embodiment of the present invention may be configured to execute the technical solution of the data transmission method embodiment shown in fig. 2, and a specific process for executing the data transmission method may refer to the specific description of the method embodiment shown in fig. 2, which is not described herein again.

According to the base station provided by the embodiment of the invention, different subframe configuration types are configured for the return link and the access link, so that the RN can adopt the second subframe configuration type to perform data transceiving interaction with the UE while adopting the first subframe configuration type to perform data transceiving interaction with the DeNB, the function of simultaneously transceiving uplink and downlink data by the RN is realized, and the utilization rate of system spectrum resources is high.

Further, the determining module 801 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,

Further, the processing module 802 is further configured to:

or,

Fig. 9 is a schematic structural diagram of a second base station according to an embodiment of the present invention. The base station 900 of the present embodiment is implemented based on the above-described embodiments. As shown in fig. 9, the base station 900 also includes a determining module 801 and a processing module 802 shown in fig. 8, and each module also has the functions described in the embodiment shown in fig. 8, and further, the relay node 900 further includes: a configuring module 901, configured to determine the first subframe configuration type and the second subframe configuration type according to an initial subframe configuration type before the DeNB sends a fifth notification message to the RN.

Further, the configuration module 901 is 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 901 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 901 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; and 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.

Further, the configuration module 901 is specifically configured to: 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 configuration module 901 is specifically configured to: 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.

Further, the subframe configuration type modification method includes:

Further, the configuration module 901 is specifically configured to: determining to adopt an initial subframe configuration type as the first subframe configuration type; searching the second subframe configuration type corresponding to the initial subframe configuration type in a mapping table;

or,

the configuration module 901 is specifically configured to: determining to adopt an initial subframe configuration type as the second subframe configuration type; searching 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: and searching the first subframe configuration type and the second subframe configuration type in a mapping table.

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

the processing module 802 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.

The base station provided in the embodiment of the present invention may be configured to execute the technical solution of any data transmission method embodiment of the present invention, and the specific process executed may refer to the specific description of the corresponding method embodiment, which is not described herein again.

Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

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 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,

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:

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;

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 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;

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:

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;

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:

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:

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

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:

or,

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:

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;

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 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,

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;

or,

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:

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;

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,

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,

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,

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:

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.