CN107534532A

CN107534532A - The method and apparatus of data transfer

Info

Publication number: CN107534532A
Application number: CN201580078877.5A
Authority: CN
Inventors: 李晓翠; 徐凯
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-12-04
Filing date: 2015-12-04
Publication date: 2018-01-02
Also published as: WO2017092047A1

Abstract

The invention discloses a kind of method and apparatus of data transfer, advantageously accounts for the problem of recipient in the prior art can not be properly received the data of last imperfect subframe of wireless carrier channel.This method includes：When last subframe on unauthorized carrier wave is imperfect subframe, the OFDM symbol number on data configuration to last described subframe, configured in the configuration mode of the DwPTS is not more than the OFDM symbol number of last subframe according to descending pilot frequency time slot DwPTS configuration mode by the first equipment；First equipment sends last described subframe to the second equipment.

Description

The method and apparatus of data transmission

Technical field

The present embodiments relate to the communications fields, and more particularly, to the method and apparatus of data transmission.

Background technique

In unauthorized carrier wave (the Licensed-Assisted Access Using Long Term Evolution of long term evolution, LAA-LTE) in system, node is needed through listen-before-talk (Listen Before Talk, LBT) carry out the channel resource using unauthorized carrier wave, wherein, LBT is a kind of csma (Carrier Sense Multiple Access, CSMA) technology, i.e. node needs and other nodes compete the resource of unauthorized carrier wave, and only when the resource of the unauthorized carrier wave is arrived in competition, the resource of the unauthorized carrier wave could be used.Because point is random at the beginning of unauthorized carrier channel occupies, so point is also random at the beginning of LAA-LTE subframe occupies unauthorized carrier channel, then at the beginning of LAA-LTE subframe occupies unauthorized carrier channel and authorizing the sub-frame boundary that subframe occupies authorization carrier channel in carrier channel that will be misaligned.

Therefore, as shown in Figure 1, node may first send an incomplete subframe in unauthorized carrier channel, and the time of this incomplete subframe is continued until the end time for corresponding to subframe in authorization carrier channel, then starts to send complete subframe in unauthorized carrier channel.That is, first subframe in unauthorized carrier channel is imperfect, next subframe is complete, and the subframe in unauthorized carrier channel in addition to first subframe in other subframes and authorization carrier channel is alignment in time, but the last one subframe is also likely to be incomplete.The data for so how being properly received the last one imperfect subframe become a urgent problem to be solved

Summary of the invention

The embodiment of the present invention provides a kind of method and apparatus of data transmission, caused by the last one incomplete subframe of wireless carrier channel in the prior art is advantageously accounted for due to possible reference signal missing, the problem of recipient cannot be properly received the data of the last one imperfect subframe.

First aspect, provide a kind of method of data transmission, it include: when the last one subframe on unauthorized carrier wave is imperfect subframe, first equipment is according to descending pilot frequency time slot (Downlink Pilot Time Slot, DwPTS configuration mode) is by data configuration to the last one described subframe, the DwPTS Configuration mode in orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, the OFDM) number of symbols that configures be not more than the OFDM symbol number of the last one subframe；First equipment sends the last one described subframe to the second equipment.

The method of data transmission according to an embodiment of the present invention, by the last one subframe on unauthorized carrier wave be imperfect subframe when, first equipment will be on data configuration to the last one described subframe according to the configuration mode of descending pilot frequency time slot DwPTS, since the OFDM symbol number that the configuration mode of the DwPTS configures is not more than the OFDM symbol number of the last one subframe, therefore it can guarantee that recipient receives complete reference signal, caused by the last one incomplete subframe of wireless carrier channel in the prior art is advantageously accounted for due to possible reference signal missing, recipient cannot be properly received the problem of data of the last one imperfect subframe.

In the first possible implementation of the first aspect, the OFDM symbol number configured in the configuration mode of the DwPTS includes any one in 3,6,9,10,11 and 12.

In this way, transmitting terminal can select the OFDM symbol number configured in configuration mode of any one in the OFDM symbol number purpose 3,6,9,10,11 and 12 no more than the last one subframe as the DwPTS configuration data in the last one described subframe.

Above-mentioned possible implementation with reference to first aspect, in the second possible implementation of the first aspect, the last one described subframe further include: the first instruction information is used to indicate the first OFDM symbol number configured in the configuration mode of the DwPTS.

In this way, receiving end can obtain the data configured in the last one described subframe according to the first OFDM symbol number, blind Detecting is avoided, is conducive to the energy for saving receiving end.

Above-mentioned possible implementation with reference to first aspect, in a third possible implementation of the first aspect, the method also includes:

First equipment sends the penultimate subframe on the unauthorized carrier wave adjacent with the last one described subframe to the second equipment, the penultimate subframe includes: second indication information, is used to indicate the second OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe.

In this way, whether to verify first OFDM symbol data correct for receiving end if can use the second OFDM symbol number, such as only when the two is equal, receiving end just obtains data, increases the reliability of data transmission.

Above-mentioned possible implementation with reference to first aspect, in a fourth possible implementation of the first aspect, it is described first instruction information be Downlink Control Information (downlink control information, DCI) and/or the second indication information is DCI.

In this way, by using the bit retained in DCI, or existing bit in multiplexing DCI, or added bits indicate OFDM symbol number in DCI, it can make receiving end that can obtain the data configured in the last one described subframe according to the OFDM symbol number, blind Detecting is avoided, the energy for saving receiving end is conducive to.

Above-mentioned possible implementation with reference to first aspect, in the fifth possible implementation of the first aspect, the method also includes:

First equipment sends wireless heterogeneous networks (Radio Resource Control to second equipment, RRC) signaling, the RRC signaling carries third and indicates information, is used to indicate the third OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe.

In this way, receiving end can obtain the data configured in the last one described subframe according to the third OFDM symbol number, blind Detecting is avoided, is conducive to the energy for saving receiving end.

Above-mentioned possible implementation with reference to first aspect, in the sixth possible implementation of the first aspect, the first instruction information includes the first index (index), is used to indicate the first OFDM symbol number configured in the configuration mode of the DwPTS, and/or

The second indication information includes the 2nd index, is used to indicate the second OFDM symbol number configured in the configuration mode of the DwPTS, and/or

The third instruction information includes the 3rd index, is used to indicate the third OFDM symbol number configured in the configuration mode of the DwPTS.

In this way, the first, second or third OFDM symbol number that receiving end can be indicated according to first, second or third index obtains the data configured in the last one described subframe, blind Detecting is avoided, is conducive to the energy for saving receiving end.

Above-mentioned possible implementation with reference to first aspect, in the sixth possible implementation of the first aspect, when the last one subframe on unauthorized carrier wave is imperfect subframe, first equipment according to DwPTS configuration mode by this data configuration mode of data configuration to the last one subframe be between the first equipment and the second equipment it is preconfigured, or first equipment determine after be sent to the second equipment or third party be the first equipment and the second device configuration.

Second aspect provides the method for another data transmission, comprising: the second equipment receives the last one subframe on the unauthorized carrier wave that the first equipment is sent, the last one described subframe is imperfect subframe；Second equipment obtains the data configured in the last one described subframe, and the data are configured in the last one described subframe with the configuration mode of descending pilot frequency time slot DwPTS, and the DwPTS's matches Set the OFDM symbol number that the OFDM symbol number configured in mode is not more than the last one subframe.

The method of data transmission according to an embodiment of the present invention, the last one subframe on the unauthorized carrier wave that the first equipment is sent is received by the second equipment, the last one described subframe is imperfect subframe, and obtain the data configured in the last one described subframe, the data are configured in the last one described subframe with the configuration mode of descending pilot frequency time slot DwPTS, since the OFDM symbol number that the configuration mode of the DwPTS configures is not more than the OFDM symbol number of the last one subframe, therefore it can guarantee that recipient receives complete reference signal, caused by the last one incomplete subframe of wireless carrier channel in the prior art is advantageously accounted for due to possible reference signal missing, recipient cannot be properly received the problem of data of the last one imperfect subframe.

In the first possible implementation of the second aspect, the OFDM symbol number configured in the configuration mode of the DwPTS includes any one in 3,6,9,10,11 and 12.

In conjunction with the above-mentioned possible implementation of second aspect, in a second possible implementation of the second aspect, the last one described subframe further include: the first instruction information is used to indicate the first OFDM symbol number configured in the configuration mode of the DwPTS；

Second equipment obtains the data configured in the last one described subframe

Second equipment obtains the data configured in the last one described subframe according to the first OFDM symbol number.

In conjunction with the above-mentioned possible implementation of second aspect, in the third possible implementation of the second aspect, the method also includes:

Second equipment receives the penultimate subframe on the unauthorized carrier wave adjacent with the last one described subframe that first equipment is sent, the penultimate subframe includes: second indication information, is used to indicate the second OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe；

Second equipment obtains the data configured in the last one described subframe

It is described in the first OFDM symbol number and equal the second OFDM symbol number Second equipment obtains the data configured in the last one described subframe according to the first OFDM symbol number or the second OFDM symbol number.

In conjunction with the above-mentioned possible implementation of second aspect, in the fourth possible implementation of the second aspect, the first instruction information is Downlink Control Information DCI and/or the second indication information is DCI.

In conjunction with the above-mentioned possible implementation of second aspect, in a fifth possible implementation of the second aspect, the method also includes:

Second equipment receives the radio resource control RRC signaling that first equipment is sent, and the RRC signaling carries third and indicates information, is used to indicate the third OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe；

Second equipment obtains the data configured in the last one described subframe

Second equipment obtains the data configured in the last one described subframe according to the third OFDM symbol number.

In conjunction with the above-mentioned possible implementation of second aspect, in the sixth possible implementation of the second aspect, the first instruction information includes the first index (index), is used to indicate the first OFDM symbol number configured in the configuration mode of the DwPTS, and/or

In this way, the first, second or third OFDM symbol number that receiving end can be indicated according to first, second or third index obtains the data configured in the last one described subframe, avoid Blind Detecting is conducive to the energy for saving receiving end.

Above-mentioned possible implementation with reference to first aspect, in the sixth possible implementation of the first aspect, the second equipment receive the last one subframe on the unauthorized carrier wave that the first equipment is sent, the last one described subframe is imperfect subframe；Second equipment obtains the data configured in the last one described subframe, the data are that this data configuration mode being configured in the last one described subframe with the configuration mode of descending pilot frequency time slot DwPTS is preconfigured between the first equipment and the second equipment, or first equipment determine after be sent to the second equipment or third party be the first equipment and the second device configuration.

The third aspect provides a kind of first equipment, the method in any possible implementation for executing above-mentioned first aspect or first aspect.Specifically, which includes the unit for executing the method in any possible implementation of above-mentioned first aspect or first aspect.

Fourth aspect provides a kind of second equipment, the method in any possible implementation for executing above-mentioned second aspect or second aspect.Specifically, which includes the unit for executing the method in any possible implementation of above-mentioned second aspect or second aspect.

5th aspect provides a kind of first equipment, which includes: receiver, transmitter, memory, processor and bus system.Wherein, the receiver, the transmitter, the memory and the processor are connected by the bus system, the memory is for storing instruction, the processor is used to execute the instruction of memory storage, signal is received to control and receive device, and it controls transmitter and sends signal, and when the processor executes the instruction of memory storage, the execution is so that the processor executes the method in any possible implementation of first aspect or first aspect.

6th aspect provides a kind of second equipment, which includes: receiver, transmitter, memory, processor and bus system.Wherein, the receiver, the transmitter, the memory and the processor are connected by the bus system, the memory is for storing instruction, the processor is used to execute the instruction of memory storage, signal is received to control and receive device, and it controls transmitter and sends signal, and when the processor executes the instruction of memory storage, the execution is so that the processor executes the method in any possible implementation of second aspect or second aspect.

7th aspect, provides a kind of computer-readable medium, for storing computer program, which includes the instruction for executing the method in any possible implementation of first aspect or first aspect.

Eighth aspect provides a kind of computer-readable medium, and for storing computer program, which includes for executing the method in any possible implementation of second aspect or second aspect Instruction.

9th aspect, provides a kind of data transmission system, including, the computer-readable medium that the first equipment or the 7th aspect that the third aspect or the 5th aspect provide provide, the method in any possible implementation for executing above-mentioned first aspect or first aspect；The computer-readable medium that the second equipment or eighth aspect that fourth aspect or the 6th aspect provide provide, the method in any possible implementation for executing above-mentioned second aspect or second aspect.

Detailed description of the invention

To describe the technical solutions in the embodiments of the present invention more clearly, the embodiment of the present invention or attached drawing needed to be used in the description of the prior art will be briefly described below, apparently, drawings described below is only some embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the schematic diagram of the radio communication channel of application of the embodiment of the present invention.

Fig. 2 is the schematic diagram of wireless communication system provided in an embodiment of the present invention.

Fig. 3 is the schematic flow chart of data transmission method provided in an embodiment of the present invention.

Fig. 4 is the schematic block diagram of the first equipment provided in an embodiment of the present invention.

Fig. 5 is the schematic block diagram of the second equipment provided in an embodiment of the present invention.

Fig. 6 is the schematic block diagram of another first equipment provided in an embodiment of the present invention.

Fig. 7 is the schematic block diagram of another second equipment provided in an embodiment of the present invention.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is a part of the embodiments of the present invention, rather than whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art's every other embodiment obtained without making creative work, all should belong to the scope of protection of the invention.

The technical solution of the embodiment of the present invention can be applied to support the various communication systems of LAA, such as: global system for mobile telecommunications (Global System of Mobile communication, GSM) system, CDMA (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system System, LTE frequency division duplex (Frequency Division Duplex, FDD) system, LTE time-division are double Work (Time Division Duplex, TDD), Universal Mobile Communication System (Universal Mobile Telecommunication System, UMTS), global interconnection inserting of microwave (Worldwide Interoperability for Microwave Access, WiMAX) communication system or the 5G system in future etc..

Fig. 2 shows the wireless communication systems 100 of application of the embodiment of the present invention.The wireless communication system 100 may include at least one first equipment 110.First equipment 100 can be the equipment with terminal equipment in communication.Each first equipment 110 can provide communication overlay for specific geographic area, and can be communicated with the terminal device (such as UE) being located in the overlay area.First equipment 110 can be gsm system or CDMA (Code Division Multiple Access, CDMA) (the Base Transceiver Station of the base station in system, BTS), base station (the NodeB being also possible in WCDMA system, NB), it can also be evolved base station (the Evolutional Node B in LTE system, eNB or eNodeB), either cloud Radio Access Network (Cloud Radio Access Network, CRAN the wireless controller in), or the network equipment can be relay station, access point, mobile unit, wearable device, in the following 5G network The network equipment etc. in network side equipment or the public land mobile network (Public Land Mobile Network, PLMN) of the following evolution.

The wireless communication system 100 further includes at least one second equipment 120 in 110 coverage area of the first equipment.Second equipment 120, which can be mobile or fixed second equipment 120, can refer to the accession to terminal, user equipment (User Equipment, UE), subscriber unit, subscriber station, movement station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless telecom equipment, user agent or user apparatus.Access terminal can be cellular phone, wireless phone, session initiation protocol (Session Initiation Protocol, SIP) phone, wireless local loop (Wireless Local Loop, WLL it) stands, personal digital assistant (Personal Digital Assistant, PDA), handheld device with wireless communication function, it calculates equipment or is connected to other processing equipments of radio modem, mobile unit, wearable device, public land mobile network (the Public Land Mobile Network of terminal device or the following evolution in the following 5G network, PLMN the terminal device etc. in).

Fig. 2 schematically illustrates first equipment and two the second equipment, optionally, the wireless communication system 100 may include in multiple first equipment and the coverage area of each network equipment may include other quantity the second equipment, it is not limited in the embodiment of the present invention.

Heretofore described " first " and " second " are only used for differentiation effect, are not intended to limit its entity distinguished, the first equipment and the second equipment can be interchanged in the present invention, and it is not limited in the embodiment of the present invention.

Optionally, which can also include that other network entities, the embodiment of the present invention such as network controller, mobile management entity are without being limited thereto.

The wireless communication system 100 can support LAA, for example, the wireless communication system 100 is specially LAA-LTE, or be other communication systems, it is not limited in the embodiment of the present invention.When the first equipment 110 and the second equipment 120 are communicated using LAA mode, it not only can be using authorization frequency spectrum (Licensed Spectrum), unlicensed spectrum (Unlicensed Spectrum) can also be used, wherein, unlicensed spectrum is integrated in the cellular communications networks (such as LTE) only with authorization frequency spectrum originally in a manner of LAA, and can be used as auxiliary component carrier wave in carrier aggregation scene.Authorization frequency spectrum just can be used after needing to obtain authorization, and unlicensed spectrum does not need to authorize, the use that anyone can be legal.At this point, the carrier wave on authorization frequency spectrum is known as authorizing carrier wave (Licensed Carrier), the carrier wave in unlicensed spectrum is known as unauthorized carrier wave (Unlicensed Carrier).

In authorization auxiliary access (the Licensed Assisted Access Using Long Term Evolution of long term evolution, LAA-LTE) system or it is other support LAA communication system in, first equipment can carry out the scheduling to unauthorized carrier wave under the assistance of authorization carrier wave, wherein, the access of unauthorized carrier wave can use LBT mechanism.First equipment or the second equipment using unauthorized carrier wave before being carried out data transmission, it can be with WLAN (Wireless Local Area Network, WLAN node in) and other nodes of LAA are used to compete the resource on the unauthorized carrier wave with Cellular Networks, and carried out data transmission after competing to resource using the resource competed, wherein, first equipment or the second equipment can be based on load (Load Based Equipment, LBE mode) is based on frame (Frame Based Equipment, FBE mode competitive resource), wherein, LBE mode refers to based on currently whether needing to send data and data volume to be sent, come determine whether competitive channel with And the duration of busy channel, FBE mode refers to the duration that channel and busy channel are seized according to frame structure, but the embodiment of the present invention is without being limited thereto.

Fig. 3 shows the method for data transmission provided in an embodiment of the present invention, and the method for wireless resource management measurement can be applied to wireless communication system 100 shown in Fig. 2, but the embodiment of the present invention is without being limited thereto.

S210, when the last one subframe on unauthorized carrier wave is imperfect subframe, first equipment is according to descending pilot frequency time slot (Downlink Pilot Time Slot, DwPTS configuration mode) will be on data configuration to the last one described subframe, orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, the OFDM) number of symbols configured in the configuration mode of the DwPTS is not more than the OFDM symbol number of the last one subframe.

The technology of third generation partner program (3rd Generation Partnership Project, 3GPP) Specification (Technical Specification, TS), such as TS 36.211, defined in DwPTS, in conventional cyclic prefix (normal cyclic prefix, normal CP) in the case where configuration mode can configure 3,6,9,10,11 or 12 OFDM symbols, in extended cyclic prefix (extended cyclic prefix, extended CP) in the case where configuration mode can configure 3,5,8,9 or 10 OFDM symbols, the definition in the technical specification of 3GPP about DwPTS configuration mode is hereby incorporated by reference in the application.

Similarly, the technical specification of 3GPP, such as TS 36.211, defined in the case where conventional cyclic prefix, a subframe may include 14 OFDM symbols, in the case where extended cyclic prefix, one subframe may include 12 OFDM symbols, definition in the technical specification of 3GPP about sub-frame formats is hereby incorporated by reference in the application, i.e., a subframe may include 12 or 14 OFDM symbols, and it is not limited in the embodiment of the present invention.

Optionally, the data may include one of control signal, reference signal and business datum or a variety of, and it is not limited in the embodiment of the present invention.

As an alternative embodiment, the OFDM symbol number configured in the configuration mode of the DwPTS includes any one in 3,6,9,10,11 and 12, such as LAA-LTE system only supports normal CP.

S220, first equipment send the last one described subframe to the second equipment.

In this way, the last one described subframe, which contains, utilizes known DwPTS configuration mode configuration data fixed number purpose OFDM symbol really, is conducive to receiving end and is properly received data.

S230, second equipment obtain the data configured in the last one described subframe.

In this way, second equipment obtains the data configured in the last one described subframe according to the complete reference signal received, the reliability of data transmission is improved.

Therefore, the method of data transmission according to an embodiment of the present invention, by the last one subframe on unauthorized carrier wave be imperfect subframe when, first equipment will be on data configuration to the last one described subframe according to the configuration mode of descending pilot frequency time slot DwPTS, since the OFDM symbol number that the configuration mode of the DwPTS configures is not more than the OFDM symbol number of the last one subframe, therefore it can guarantee that recipient receives complete reference signal, caused by the last one incomplete subframe of wireless carrier channel in the prior art is advantageously accounted for due to possible reference signal missing, recipient cannot correctly connect The problem of receiving the data of the last one imperfect subframe, increases the reliability of data transmission.

As an alternative embodiment, the last one described subframe further include: the first instruction information is used to indicate the first OFDM symbol number configured in the configuration mode of the DwPTS；

Second equipment obtains the data configured in the last one described subframe

As an alternative embodiment, the first instruction information further include: the first index (index) is used to indicate the first OFDM symbol number configured in the configuration mode of the DwPTS；

Second equipment obtains the data configured in the last one described subframe

As an alternative embodiment, the method also includes:

First equipment sends the penultimate subframe on the unauthorized carrier wave adjacent with the last one described subframe to the second equipment, the penultimate subframe includes: second indication information, is used to indicate the second OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe；

Second equipment obtains the data configured in the last one described subframe

In the first OFDM symbol number and equal the second OFDM symbol number, second equipment obtains the data configured in the last one described subframe according to the first OFDM symbol number or the second OFDM symbol number.

As an alternative embodiment, the second indication information further include: the 2nd index is used to indicate the second OFDM symbol number configured in the configuration mode of the DwPTS；

Second equipment obtains the data configured in the last one described subframe

As another alternative embodiment, the first instruction information is Downlink Control Information (downlink control information, DCI) and/or the second indication information is DCI.

As another alternative embodiment, the method also includes:

First equipment sends wireless heterogeneous networks (Radio Resource Control to second equipment, RRC) signaling, the RRC signaling carries third and indicates information, is used to indicate the third OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe；

Second equipment obtains the data configured in the last one described subframe

As an alternative embodiment, the third indicates information further include: the 3rd index is used to indicate the third OFDM symbol number configured in the configuration mode of the DwPTS；

Second equipment obtains the data configured in the last one described subframe

As another alternative embodiment, when the last one subframe on unauthorized carrier wave is imperfect subframe, first equipment according to DwPTS configuration mode by this data configuration mode of data configuration to the last one subframe be between the first equipment and the second equipment it is preconfigured, or first equipment determine after be sent to the second equipment or third party be the first equipment and the second device configuration.

It should be understood that magnitude of the sequence numbers of the above procedures are not meant that the order of the execution order, the execution sequence of each process be should be determined by its function and internal logic, and the implementation process of the embodiments of the invention shall not be constituted with any limitation.

Above in conjunction with Fig. 2 to Fig. 3, the method that data transmission according to an embodiment of the present invention is described in detail, below in conjunction with Fig. 4 to Fig. 7, the equipment that data transmission according to an embodiment of the present invention is described in detail.

Fig. 4 shows the first equipment 300 provided in an embodiment of the present invention, which includes:

Configuration unit 310, for the last one subframe on unauthorized carrier wave be imperfect subframe when, the orthogonal frequency division multiplex OFDM number of symbols on data configuration to the last one described subframe, configured in the configuration mode of the DwPTS is not more than to the OFDM symbol number of the last one subframe according to the configuration mode of descending pilot frequency time slot DwPTS；

Transmission unit 320, for sending the last one described subframe to the second equipment.

Optionally, the OFDM symbol number configured in the configuration mode of the DwPTS includes any one in 3,6,9,10,11 and 12.

Optionally, the last one described subframe further include: the first instruction information is used to indicate the first OFDM symbol number configured in the configuration mode of the DwPTS.

Optionally, the transmission unit 320, it is also used to send the penultimate subframe on the unauthorized carrier wave adjacent with the last one described subframe to second equipment, the penultimate subframe includes: second indication information, is used to indicate the second OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe.

Optionally, the first instruction information is Downlink Control Information DCI, and/or, the second indication information is DCI.

Optionally, the transmission unit 320, it is also used to send radio resource control RRC signaling to second equipment, the RRC signaling carries third and indicates information, is used to indicate the third OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe.

Optionally, the first instruction information includes the first index, is used to indicate the first OFDM symbol number configured in the configuration mode of the DwPTS, and/or

It should be understood that the first equipment 300 here is embodied in the form of functional unit.Here term is " single Member " can refer to using peculiar integrated circuit (Application Specific Integrated Circuit, ASIC), electronic circuit, processor (such as shared processor, proprietary processor or group processor etc.) and memory for executing one or more softwares or firmware program, merge logic circuit and/or other appropriate components for supporting described function.In an optional example, it will be appreciated by those skilled in the art that, first equipment 300 can be specially the first equipment in above-described embodiment, first equipment 300 can be used for executing each process corresponding with the first equipment and/or step in above method embodiment, to avoid repeating, details are not described herein.

Fig. 5 shows the second equipment 400 provided in an embodiment of the present invention.Second equipment 400 includes:

Receiving unit 410, the last one subframe on unauthorized carrier wave for receiving the transmission of the first equipment, the last one described subframe is imperfect subframe

Acquiring unit 420, for obtaining the data configured in the last one described subframe, the data are configured in the last one described subframe with the configuration mode of descending pilot frequency time slot DwPTS, and the orthogonal frequency division multiplex OFDM number of symbols configured in the configuration mode of the DwPTS is not more than the OFDM symbol number of the last one subframe.

Optionally, the last one described subframe further include: the first instruction information is used to indicate the first OFDM symbol number configured in the configuration mode of the DwPTS；

The acquiring unit 420 is also used to obtain the data configured in the last one described subframe according to the first OFDM symbol number.

Optionally, the receiving unit 410, it is also used to receive the penultimate subframe on the unauthorized carrier wave adjacent with the last one described subframe that first equipment is sent, the penultimate subframe includes: second indication information, is used to indicate the second OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe；

The acquiring unit 420 is also used in the first OFDM symbol number and equal the second OFDM symbol number, and the data configured in the last one described subframe are obtained according to the first OFDM symbol number or the second OFDM symbol number.

Optionally, the first instruction information is Downlink Control Information DCI and/or the second indication information is DCI.

Optionally, the receiving unit 410 is also used to receive the radio resource control RRC signaling that first equipment is sent, and the RRC signaling carries third and indicates information, be used to indicate it is described the last one The third OFDM symbol number configured in the configuration mode of DwPTS described in subframe；

The acquiring unit 420 is also used to obtain the data configured in the last one described subframe according to the third OFDM symbol number.

It should be understood that the second equipment 400 here is embodied in the form of functional unit.Here term " unit " can refer to using peculiar integrated circuit (Application Specific Integrated Circuit, ASIC), electronic circuit, processor (such as shared processor, proprietary processor or group processor etc.) and memory for executing one or more softwares or firmware program, merge logic circuit and/or other appropriate components for supporting described function.In an optional example, it will be appreciated by those skilled in the art that, second equipment 400 can be specially the second equipment in above-described embodiment, second equipment 400 can be used for executing each process corresponding with the second equipment and/or step in above method embodiment, to avoid repeating, details are not described herein.

Fig. 6 shows the first equipment 500 provided in an embodiment of the present invention, which includes receiver 510, processor 520, transmitter 530, memory 540 and bus system 550.Wherein, receiver 510, processor 520, transmitter 530 and memory 540 are connected by bus system 550, the memory 540 is for storing instruction, the processor 520 is used to execute the instruction of the memory 540 storage, signal is received to control the receiver 510, and controls the transmitter 530 and sends instruction.

Wherein, the processor 520 is used for when the last one subframe on unauthorized carrier wave is imperfect subframe, the orthogonal frequency division multiplex OFDM number of symbols on data configuration to the last one described subframe, configured in the configuration mode of the DwPTS is not more than to the OFDM symbol number of the last one subframe according to the configuration mode of descending pilot frequency time slot DwPTS；

The transmitter 530 is used to send the last one described subframe to the second equipment.

Optionally, the transmitter is also used to send the penultimate subframe on the unauthorized carrier wave adjacent with the last one described subframe to second equipment, the penultimate subframe includes: second indication information, is used to indicate the second OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe.

Optionally, the transmitter is also used to send radio resource control RRC signaling to second equipment, and the RRC signaling carries third and indicates information, is used to indicate the third OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe.

It should be understood that the first equipment 500 can be specially the first equipment in above-described embodiment, and it can be used for executing each step corresponding with the first equipment and/or process in above method embodiment.Optionally, which may include read-only memory and random access memory, and provide instruction and data to processor.The a part of of memory can also include nonvolatile RAM.For example, memory can be with the information of storage device type.The processor 520 can be used for executing the instruction stored in memory, and when the processor executes the instruction, which can execute each step corresponding with the first equipment in above method embodiment.

Fig. 7 shows the second equipment 600 provided in an embodiment of the present invention.Second equipment 600 includes transmitter 610, receiver 620, processor 630, memory 640 and bus system 650.Wherein, transmitter 610, receiver 620, processor 630 and memory 640 are connected by bus system 650, the memory 640 is for storing instruction, the processor 630 is used to execute the instruction of the memory 640 storage, signal is sent to control the transmitter 610, and controls the receiver 620 and receives signal.

Wherein, the receiver 620 is used to receive the last one subframe on the unauthorized carrier wave of the first equipment transmission, the last one described subframe is imperfect subframe；

The processor 630 is used to obtain the data configured in the last one described subframe, and the data are configured in the last one described subframe with the configuration mode of descending pilot frequency time slot DwPTS, described The orthogonal frequency division multiplex OFDM number of symbols configured in the configuration mode of DwPTS is not more than the OFDM symbol number of the last one subframe.

The processor 630 is also used to obtain the data configured in the last one described subframe according to the first OFDM symbol number.

Optionally, the receiver 620 is also used to receive the penultimate subframe on the unauthorized carrier wave adjacent with the last one described subframe that first equipment is sent, the penultimate subframe includes: second indication information, is used to indicate the second OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe；

The processor 630 is also used in the first OFDM symbol number and equal the second OFDM symbol number, and the data configured in the last one described subframe are obtained according to the first OFDM symbol number or the second OFDM symbol number.

Optionally, the receiver 620 is also used to receive the radio resource control RRC signaling that first equipment is sent, the RRC signaling carries third and indicates information, is used to indicate the third OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe；

The processor 630 is also used to obtain the data configured in the last one described subframe according to the third OFDM symbol number.

It should be understood that the second equipment 600 can be specially the second equipment in above-described embodiment, and it can be used for executing each step corresponding with the second equipment and/or process in above method embodiment.Optionally, which may include read-only memory and random access memory, and provide instruction to processor And data.The a part of of memory can also include nonvolatile RAM.For example, memory can be with the information of storage device type.The processor 630 can be used for executing the instruction stored in memory, and when the processor executes the instruction stored in memory, which is used to execute each step and/or process of above method embodiment.

It should be understood that, in embodiments of the present invention, the processor can be central processing unit (Central Processing Unit, CPU), which can also be other general processors, digital signal processor (DSP), specific integrated circuit (ASIC), ready-made programmable gate array (FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor etc..

During realization, each step of the above method can be completed by the integrated logic circuit of the hardware in processor or the instruction of software form.The step of method in conjunction with disclosed in the embodiment of the present invention, can be embodied directly in hardware processor and execute completion, or in processor hardware and software module combination execute completion.Software module can be located at random access memory, flash memory, read-only memory, in the storage medium of this fields such as programmable read only memory or electrically erasable programmable memory, register maturation.The step of storage medium is located at memory, and processor executes the instruction in memory, completes the above method in conjunction with its hardware.To avoid repeating, it is not detailed herein.

Those of ordinary skill in the art may be aware that, various method steps and unit in conjunction with described in the embodiments described herein, it can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly illustrate the interchangeability of hardware and software, the step of according to function having generally described each embodiment in the above description and composition.These functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Those of ordinary skill in the art can use different methods to achieve the described function each specific application, but such implementation should not be considered as beyond the scope of the present invention.

It is apparent to those skilled in the art that for convenience of description and succinctly, system, the specific work process of device and unit of foregoing description can refer to corresponding processes in the foregoing method embodiment, details are not described herein.

In several embodiments provided herein, it should be understood that disclosed system, apparatus and method may be implemented in other ways.Such as, the apparatus embodiments described above are merely exemplary, such as, the division of the unit, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be combined or can be integrated into another system, or some features can be ignored or not executed.In addition, shown or discussed mutual Coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of device or unit, be also possible to electricity, the connection of mechanical or other forms.

The unit as illustrated by the separation member may or may not be physically separated, and component shown as a unit may or may not be physical unit, it can and it is in one place, or may be distributed over multiple network units.It can select some or all of unit therein according to the actual needs to realize the purpose of the embodiment of the present invention.

In addition, the functional units in various embodiments of the present invention may be integrated into one processing unit, it is also possible to each unit and physically exists alone, is also possible to two or more units and is integrated in one unit.Above-mentioned integrated unit both can take the form of hardware realization, can also realize in the form of software functional units.

If the integrated unit is realized in the form of SFU software functional unit and when sold or used as an independent product, can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention substantially the part that contributes to existing technology in other words, or all or part of the technical solution can be embodied in the form of software products, the computer software product is stored in a storage medium, it uses including some instructions so that a computer equipment (can be personal computer, server or the network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read-Only Memory, referred to as " ROM "), random access memory (Random Access Memory, referred to as " RAM "), the various media that can store program code such as magnetic or disk.

It is described above; only a specific embodiment of the invention; but scope of protection of the present invention is not limited thereto; anyone skilled in the art is in the technical scope disclosed by the present invention; various equivalent modifications or substitutions can be readily occurred in, these modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.

Claims

A kind of method of data transmission characterized by comprising

When the last one subframe on unauthorized carrier wave is imperfect subframe, the orthogonal frequency division multiplex OFDM number of symbols on data configuration to the last one described subframe, configured in the configuration mode of the DwPTS is not more than the OFDM symbol number of the last one subframe according to the configuration mode of descending pilot frequency time slot DwPTS by the first equipment；

First equipment sends the last one described subframe to the second equipment.
The method according to claim 1, wherein the OFDM symbol number configured in the configuration mode of the DwPTS includes any one in 3,6,9,10,11 and 12.
Method according to any one of claim 1 to 2, which is characterized in that the last one described subframe further include: the first instruction information is used to indicate the first OFDM symbol number configured in the configuration mode of the DwPTS.
According to the method described in claim 3, it is characterized by further comprising:

First equipment sends the penultimate subframe on the unauthorized carrier wave adjacent with the last one described subframe to the second equipment, the penultimate subframe includes: second indication information, is used to indicate the second OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe.
Method according to claim 1 to 4, which is characterized in that

The first instruction information is Downlink Control Information DCI, and/or

The second indication information is DCI.
The method according to any one of claims 1 to 5, which is characterized in that further include:

First equipment sends radio resource control RRC signaling to second equipment, and the RRC signaling carries third and indicates information, is used to indicate the third OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe.
Method according to any one of claim 1 to 6, which is characterized in that

The first instruction information includes the first index index, is used to indicate the first OFDM symbol number configured in the configuration mode of the DwPTS, and/or

The second indication information includes the 2nd index, is used to indicate the second OFDM symbol number configured in the configuration mode of the DwPTS, and/or

The third instruction information includes the 3rd index, is used to indicate the third OFDM symbol number configured in the configuration mode of the DwPTS.
A kind of method of data transmission characterized by comprising

Second equipment receives the last one subframe on the unauthorized carrier wave that the first equipment is sent, the last one described subframe is imperfect subframe；

Second equipment obtains the data configured in the last one described subframe, the data are configured in the last one described subframe with the configuration mode of descending pilot frequency time slot DwPTS, and the orthogonal frequency division multiplex OFDM number of symbols configured in the configuration mode of the DwPTS is not more than the OFDM symbol number of the last one subframe.
According to the method described in claim 8, it is characterized in that, the OFDM symbol number configured in the configuration mode of the DwPTS includes any one in 3,6,9,10,11 and 12.
The method according to any one of claim 8 to 9, which is characterized in that the last one described subframe further include: the first instruction information is used to indicate the first OFDM symbol number configured in the configuration mode of the DwPTS；

Second equipment obtains the data configured in the last one described subframe

Second equipment obtains the data configured in the last one described subframe according to the first OFDM symbol number.
According to the method described in claim 10, it is characterized by further comprising:

Second equipment receives the penultimate subframe on the unauthorized carrier wave adjacent with the last one described subframe that first equipment is sent, the penultimate subframe includes: second indication information, is used to indicate the second OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe；

Second equipment obtains the data configured in the last one described subframe

In the first OFDM symbol number and equal the second OFDM symbol number, second equipment obtains the data configured in the last one described subframe according to the first OFDM symbol number or the second OFDM symbol number.
The method according to any one of claim 8 to 11, which is characterized in that

The first instruction information is Downlink Control Information DCI, and/or

The second indication information is DCI.
The method according to any one of claim 8 to 12, which is characterized in that further include:

Second equipment receives the radio resource control RRC signaling that first equipment is sent, and the RRC signaling carries third and indicates information, is used to indicate the third OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe；

Second equipment obtains the data configured in the last one described subframe

Second equipment obtains the data configured in the last one described subframe according to the third OFDM symbol number.
Method according to one of claims 8 to 13, which is characterized in that

The first instruction information includes the first index index, is used to indicate the first OFDM symbol number configured in the configuration mode of the DwPTS, and/or

The second indication information includes the 2nd index, is used to indicate the second OFDM symbol number configured in the configuration mode of the DwPTS, and/or

The third instruction information includes the 3rd index, is used to indicate the third OFDM symbol number configured in the configuration mode of the DwPTS.
A kind of first equipment characterized by comprising

Configuration unit, for the last one subframe on unauthorized carrier wave be imperfect subframe when, the orthogonal frequency division multiplex OFDM number of symbols on data configuration to the last one described subframe, configured in the configuration mode of the DwPTS is not more than to the OFDM symbol number of the last one subframe according to the configuration mode of descending pilot frequency time slot DwPTS；

Transmission unit, for sending the last one described subframe to the second equipment.
Equipment according to claim 15, which is characterized in that the OFDM symbol number configured in the configuration mode of the DwPTS includes any one in 3,6,9,10,11 and 12.
Equipment described in any one of 5 to 16 according to claim 1, which is characterized in that the last one described subframe further include: the first instruction information is used to indicate the first OFDM symbol number configured in the configuration mode of the DwPTS.
Equipment according to claim 17, which is characterized in that

The transmission unit, it is also used to send the penultimate subframe on the unauthorized carrier wave adjacent with the last one described subframe to second equipment, the penultimate subframe includes: second indication information, is used to indicate the second OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe.
Equipment described in any one of 5 to 18 according to claim 1, which is characterized in that

The first instruction information is Downlink Control Information DCI, and/or,

The second indication information is DCI.
Equipment described in any one of 5 to 19 according to claim 1, which is characterized in that

The transmission unit is also used to send radio resource control RRC signaling to second equipment, The RRC signaling carries third and indicates information, is used to indicate the third OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe.
Equipment described in any one of 5 to 20 according to claim 1, which is characterized in that

The first instruction information includes the first index index, is used to indicate the first OFDM symbol number configured in the configuration mode of the DwPTS, and/or

The second indication information includes the 2nd index, is used to indicate the second OFDM symbol number configured in the configuration mode of the DwPTS, and/or

The third instruction information includes the 3rd index, is used to indicate the third OFDM symbol number configured in the configuration mode of the DwPTS.
A kind of second equipment characterized by comprising

Receiving unit, the last one subframe on unauthorized carrier wave for receiving the transmission of the first equipment, the last one described subframe is imperfect subframe；

Acquiring unit, for obtaining the data configured in the last one described subframe, the data are configured in the last one described subframe with the configuration mode of descending pilot frequency time slot DwPTS, and the orthogonal frequency division multiplex OFDM number of symbols configured in the configuration mode of the DwPTS is not more than the OFDM symbol number of the last one subframe.
Equipment according to claim 22, which is characterized in that the OFDM symbol number configured in the configuration mode of the DwPTS includes any one in 3,6,9,10,11 and 12.
The equipment according to any one of claim 22 to 23, which is characterized in that the last one described subframe further include: the first instruction information is used to indicate the first OFDM symbol number configured in the configuration mode of the DwPTS；

The acquiring unit is also used to obtain the data configured in the last one described subframe according to the first OFDM symbol number.
Equipment according to claim 24, which is characterized in that

The receiving unit, it is also used to receive the penultimate subframe on the unauthorized carrier wave adjacent with the last one described subframe that first equipment is sent, the penultimate subframe includes: second indication information, is used to indicate the second OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe；

The acquiring unit is also used in the first OFDM symbol number and equal the second OFDM symbol number, and the data configured in the last one described subframe are obtained according to the first OFDM symbol number or the second OFDM symbol number.
The equipment according to any one of claim 22 to 25, which is characterized in that

The first instruction information is Downlink Control Information DCI, and/or

The second indication information is DCI.
The equipment according to any one of claim 22 to 26, which is characterized in that

The receiving unit is also used to receive the radio resource control RRC signaling that first equipment is sent, and the RRC signaling carries third and indicates information, is used to indicate the third OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe；

The acquiring unit is also used to obtain the data configured in the last one described subframe according to the third OFDM symbol number.
The equipment according to any one of claim 22 to 27, which is characterized in that

The first instruction information includes the first index index, is used to indicate the first OFDM symbol number configured in the configuration mode of the DwPTS, and/or

The second indication information includes the 2nd index, is used to indicate the second OFDM symbol number configured in the configuration mode of the DwPTS, and/or

The third instruction information includes the 3rd index, is used to indicate the third OFDM symbol number configured in the configuration mode of the DwPTS.
A kind of first equipment, it is characterized in that, the equipment includes: receiver, transmitter, processor, memory and bus system, the receiver, the transmitter, the processor and the memory are connected by the bus system, for storing instruction, the processor is used to execute the instruction of the memory storage to the memory；

The processor is used for when the last one subframe on unauthorized carrier wave is imperfect subframe, the orthogonal frequency division multiplex OFDM number of symbols on data configuration to the last one described subframe, configured in the configuration mode of the DwPTS is not more than to the OFDM symbol number of the last one subframe according to the configuration mode of descending pilot frequency time slot DwPTS；

The transmitter is used to send the last one described subframe to the second equipment.
Equipment according to claim 29, which is characterized in that the OFDM symbol number configured in the configuration mode of the DwPTS includes any one in 3,6,9,10,11 and 12.
The equipment according to any one of claim 29 to 30, which is characterized in that the last one described subframe further include: the first instruction information is used to indicate the first OFDM symbol number configured in the configuration mode of the DwPTS.
Equipment according to claim 31, which is characterized in that

The transmitter is also used to send the penultimate subframe on the unauthorized carrier wave adjacent with the last one described subframe to second equipment, the penultimate subframe includes: second indication information, is used to indicate the second OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe.
The equipment according to any one of claim 29 to 32, which is characterized in that

The first instruction information is Downlink Control Information DCI, and/or,

The second indication information is DCI.
The equipment according to any one of claim 29 to 33, which is characterized in that

The transmitter is also used to send radio resource control RRC signaling to second equipment, and the RRC signaling carries third and indicates information, is used to indicate the third OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe.
The equipment according to any one of claim 29 to 34, which is characterized in that

The first instruction information includes the first index index, is used to indicate the first OFDM symbol number configured in the configuration mode of the DwPTS, and/or

The second indication information includes the 2nd index, is used to indicate the second OFDM symbol number configured in the configuration mode of the DwPTS, and/or

The third instruction information includes the 3rd index, is used to indicate the third OFDM symbol number configured in the configuration mode of the DwPTS.
A kind of second equipment, it is characterized in that, the equipment includes: receiver, transmitter, processor, memory and bus system, the receiver, the transmitter, the processor and the memory are connected by the bus system, for storing instruction, the processor is used to execute the instruction of the memory storage to the memory；

The receiver is used to receive the last one subframe on the unauthorized carrier wave of the first equipment transmission, the last one described subframe is imperfect subframe；

The processor is used to obtain the data configured in the last one described subframe, the data are configured in the last one described subframe with the configuration mode of descending pilot frequency time slot DwPTS, and the orthogonal frequency division multiplex OFDM number of symbols configured in the configuration mode of the DwPTS is not more than the OFDM symbol number of the last one subframe.
Equipment according to claim 36, which is characterized in that the OFDM symbol number configured in the configuration mode of the DwPTS includes any one in 3,6,9,10,11 and 12.
The equipment according to any one of claim 36 to 37, which is characterized in that it is described most The latter subframe further include: the first instruction information is used to indicate the first OFDM symbol number configured in the configuration mode of the DwPTS；

The processor is also used to obtain the data configured in the last one described subframe according to the first OFDM symbol number.
The equipment according to claim 38, which is characterized in that

The receiver is also used to receive the penultimate subframe on the unauthorized carrier wave adjacent with the last one described subframe that first equipment is sent, the penultimate subframe includes: second indication information, is used to indicate the second OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe；

The processor is also used in the first OFDM symbol number and equal the second OFDM symbol number, and the data configured in the last one described subframe are obtained according to the first OFDM symbol number or the second OFDM symbol number.
The equipment according to any one of claim 36 to 39, which is characterized in that

The first instruction information is Downlink Control Information DCI, and/or

The second indication information is DCI.
The equipment according to any one of claim 36 to 39, which is characterized in that

The receiver is also used to receive the radio resource control RRC signaling that first equipment is sent, and the RRC signaling carries third and indicates information, is used to indicate the third OFDM symbol number configured in the configuration mode of DwPTS described in the last one described subframe；

The processor is also used to obtain the data configured in the last one described subframe according to the third OFDM symbol number.
The equipment according to any one of claim 36 to 41, which is characterized in that

The first instruction information includes the first index index, is used to indicate the first OFDM symbol number configured in the configuration mode of the DwPTS, and/or

The second indication information includes the 2nd index, is used to indicate the second OFDM symbol number configured in the configuration mode of the DwPTS, and/or

The third instruction information includes the 3rd index, is used to indicate the third OFDM symbol number configured in the configuration mode of the DwPTS.