CN102457967B

CN102457967B - Data transmission method and equipment

Info

Publication number: CN102457967B
Application number: CN201010528590.7A
Authority: CN
Inventors: 陈小波; 吕永霞; 吴勇; 王学寰
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2010-10-28
Filing date: 2010-10-28
Publication date: 2014-11-19
Anticipated expiration: 2030-10-28
Also published as: CN102457967A

Abstract

The embodiment of the invention provides a data transmission method and equipment. The data transmission method comprises the following steps that: LTE (long term evolution) TDD (time division duplex) user terminal equipment receives downlink data or signaling which is transmitted by network side equipment through an LTE TDD downlink subframe on a hybrid carrier of WiMAX (worldwide interoperability for microwave assess) and LTE TDD, wherein the LTE TDD downlink subframe at least comprises the 0th, 1st, 5th and 6th subframes of each radio frame; the LTE TDD user terminal equipment transmits uplink data or signaling to the network side equipment at an uplink subframe; and the LTE TDD user terminal equipment transmits uplink data or signaling to the network side equipment at an HARQ (hybrid automatic retransmission quest) retransmission subframe corresponding to the data transmission of the uplink subframe. Through the technical scheme of the invention, a WiMAX system and an LTE TDD system can coexist on a same carrier and the hybrid carrier of WiMAX and LTE TDD can be compatible with LTE TDD users very well.

Description

Data transmission method and equipment

Technical field

The embodiment of the present invention relates to communication technical field, relates in particular to a kind of data transmission method and equipment.

Background technology

Whole world microwave interconnection access (Worldwide Interoperability for Microwave Access; Hereinafter to be referred as: WiMAX) being called again 802.16 wireless MANs, is a kind ofly for enterprise and domestic consumer provide the broadband wireless of " last mile ", to move access technology.WiMAX is with electrics and electronics engineering teacher (Institute of Electrical and Electronics Engineers 802.16; Hereinafter to be referred as: IEEE802.16) the serial wideband wireless standard of definition is basis, has adopted orthogonal frequency division multiplexi, intelligent antenna technology and MIMO technique, can provide high-speed radio access for user.Early stage WiMAX version IEEE 802.16e is a kind of as third generation wireless communication technology, and Countries has obtained business application widely in the world at present.

In order to realize higher peak data rate to support more rich and varied class of business and to provide better user to experience, on the basis of third generation wireless communication technology, International Telecommunications Union started the 4th generation wireless communication technology research.For the 4th generation wireless communication technology, mainly contain at present two candidate schemes, one is the IEEE 802.16m technology based on IEEE 802.16e smooth evolution, belongs to WiMAX camp; Another is based on Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access; Hereinafter to be referred as: WCDMA) with synchronous CDMA (Code Division Multiple Access) (Time Division-SynchronousCode Division Multiple Access of time-division; Hereinafter to be referred as: the TD-SCDMA) Long Term Evolution of smooth evolution (Long Term Evolution; Hereinafter to be referred as: LTE) technology, belongs to third generation partner program (The 3rd-Generation Partnership Project; Hereinafter to be referred as: 3GPP) camp.WiMAX system is supported time division duplex (Time Division Duplex; Hereinafter to be referred as: TDD) standard, LTE system is supported TDD and Frequency Division Duplexing (FDD) (Frequency Division Duplex simultaneously; Hereinafter to be referred as: FDD) standard.For convenience of description, the LTE system of taking TDD standard is called to LTE TDD system.

When selection the 4th generation wireless communication technology, consider that there is the support of more huge and ripe system equipment and terminal industrial chain in the 3GPP camp that releases LTE technology, the main flow that WiMAX system becomes the follow-up evolution of WiMAX system to LTE TDD system evolved one of is selected.

A kind of WiMAX system that prior art provides to the scheme of LTE TDD system evolved is: along with the minimizing gradually of WiMAX terminal number in system, the part bandwidth of distributing to WiMAX is redistributed to LTE TDD and used, be that WiMAX and LTE TDD take respectively different carrier waves, this scheme is called frequency division multiplexing.

The another kind of WiMAX system that prior art provides to the scheme of LTE TDD system evolved is: WiMAX and LTE TDD are used identical carrier wave, but taking respectively the different time transmits, and the shared time is at least the multiple of 5 milliseconds of WiMAX frame lengths, and this scheme is called interframe multiplexing scheme.

For frequency division multiplexing, minimizing along with WiMAX number of users, when the bandwidth of distributing to WiMAX is reduced to 5MHz from 10MHz, consider that part WiMAX existing network terminal do not support 5MHz/10MHz adaptive scanning, so frequency division multiplexing compatible this part terminal well; In addition, along with the further minimizing of WiMAX number of users, for distributing the carrier wave of 5MHz, WiMAX still can cause the waste of valuable frequency spectrum resource.

For interframe multiplexing scheme, although interframe multiplexing scheme can come to adjust flexibly WiMAX and the shared time resource of LTE TDD as required.But LTE TDD has strict mixed automatic retransfer request (Hybrid Automatic Repeat Request; Hereinafter to be referred as: the HARQ) definition of sequential relationship.In LTE TDD, the transmission of uplink data channels adopts synchronous HARQ transmission means, and for certain uplink data channels transmission, its corresponding base station feedback confirms/deny that the moment of the moment of response message and uplink data channels re-transmission next time all fixes; Although downstream data channel adopts asynchronous HARQ transmission means, for the transmission of certain downstream data channel, its corresponding user feedback confirms/denies that the moment of response message also fixes.If these corresponding fixed times are allocated for WiMAX transmission, will destroy the HARQ sequential relationship of LTE TDD system so, make on WiMAX and LTE TDD mixed carrier compatible LTE user well.

Summary of the invention

The invention provides a kind of data transmission method and equipment, to realize WiMAX system and LTE TDD system coexists on same carrier wave.

The invention provides a kind of data transmission method, comprising:

Long-term advancing time division duplex LTE TDD subscriber terminal equipment receives network equipment and accesses by worldwide interoperability for microwave downlink data or the signaling that the LTE TDD descending sub frame on WiMAX and LTE TDD mixed carrier sends, and wherein said LTE TDD descending sub frame at least comprises the 0th, 1,5 and 6 subframes of each radio frames;

LTE TDD subscriber terminal equipment sends upstream data or signaling at the sub-frame of uplink of described WiMAX and LTE TDD mixed carrier to network equipment; Wherein said sub-frame of uplink is to arrange according to the ratio of uplink subframe to downlink subframe of described LTETDD system, for feeding back the response message corresponding with at least one subframe of described LTE TDD descending sub frame.

The present invention also provides a kind of data transmission method, and it is applied to exist at least one worldwide interoperability for microwave to access WiMAX and long-term advancing time division duplex LTE TDD mixed carrier in wireless telecommunication system, and at least one LTE TDD carrier wave, and the method comprises:

LTE TDD subscriber terminal equipment receives downlink data or the signaling that network equipment sends by the LTE TDD descending sub frame on WiMAX and LTE TDD mixed carrier, and wherein said LTE TDD descending sub frame at least comprises the 0th, 1,5 and 6 subframes of each radio frames; And receive network equipment by downlink data or the signaling of the descending sub frame transmission at least one LTE TDD carrier wave;

LTE TDD subscriber terminal equipment sends upstream data or signaling by the sub-frame of uplink of at least one LTE TDD carrier wave to network equipment.

The present invention also provides a kind of method of transfer of data, comprising:

The LTE TDD descending sub frame accessing on WiMAX and long-term advancing time division duplex LTE TDD mixed carrier by worldwide interoperability for microwave sends downlink data or signaling to LTE TDD subscriber terminal equipment, and wherein said LTE TDD descending sub frame at least comprises the 0th, 1,5 and 6 subframes of each radio frames;

Receive upstream data or signaling that LTE TDD subscriber terminal equipment feeds back on the sub-frame of uplink of described WiMAX and LTE TDD mixed carrier; Wherein said sub-frame of uplink is to arrange according to the ratio of uplink subframe to downlink subframe of described LTE TDD system, for feeding back the response message corresponding with at least one subframe of described LTE TDD descending sub frame.

The present invention also provides a kind of method of transfer of data, and it is applied to exist at least one worldwide interoperability for microwave to access WiMAX and long-term advancing time division duplex LTE TDD mixed carrier in wireless telecommunication system, and at least one LTE TDD carrier wave, comprising:

By the LTE TDD descending sub frame on WiMAX and LTE TDD mixed carrier, to LTE TDD subscriber terminal equipment, send downlink data or signaling, wherein said LTE TDD descending sub frame at least comprises the 0th, 1,5 and 6 subframes of each radio frames; And send downlink data or signaling by the descending sub frame at least one LTE TDD carrier wave;

Receive LTE TDD subscriber terminal equipment by upstream data or the signaling of the sub-frame of uplink transmission of at least one LTE TDD carrier wave.

The embodiment of the present invention also provides a kind of subscriber terminal equipment, comprising:

Receiver module, for receiving network equipment, by worldwide interoperability for microwave, access downlink data or the signaling that the LTE TDD descending sub frame on WiMAX and long-term advancing time division duplex LTE TDD mixed carrier sends, wherein said LTE TDD descending sub frame at least comprises the 0th, 1,5 and 6 subframes of each radio frames;

Sending module, sends upstream data or signaling for the sub-frame of uplink at described WiMAX and LTE TDD mixed carrier to network equipment; Wherein said sub-frame of uplink is to arrange according to the ratio of uplink subframe to downlink subframe of described LTE TDD system, for feeding back the response message corresponding with at least one subframe of described LTE TDD descending sub frame.

The embodiment of the present invention also provides a kind of subscriber terminal equipment, it is applied to exist at least one worldwide interoperability for microwave to access WiMAX and long-term advancing time division duplex LTE TDD mixed carrier in wireless telecommunication system, and at least one LTE TDD carrier wave, this subscriber terminal equipment comprises:

Receiver module, for receiving network equipment, by worldwide interoperability for microwave, access downlink data or the signaling that the LTE TDD descending sub frame on WiMAX and long-term advancing time division duplex LTE TDD mixed carrier sends, wherein said LTE TDD descending sub frame at least comprises the 0th, 1,5 and 6 subframes of each radio frames; And receive network equipment by downlink data or the signaling of the descending sub frame transmission at least one LTE TDD carrier wave;

Sending module, sends upstream data or signaling for the sub-frame of uplink by least one LTE TDD carrier wave to network equipment.

The embodiment of the present invention also provides a kind of network equipment, comprising:

Sending module, for the LTE TDD descending sub frame accessing by worldwide interoperability for microwave on WiMAX and long-term advancing time division duplex LTE TDD mixed carrier, to LTE TDD subscriber terminal equipment, send downlink data or signaling, wherein said LTE TDD descending sub frame at least comprises the 0th, 1,5 and 6 subframes of each radio frames;

Receiver module, upstream data or the signaling for receiving LTE TDD subscriber terminal equipment, on the sub-frame of uplink of described WiMAX and LTE TDD mixed carrier, fed back; Wherein said sub-frame of uplink is to arrange according to the ratio of uplink subframe to downlink subframe of described LTE TDD system, for feeding back the response message corresponding with at least one subframe of described LTE TDD descending sub frame.

The embodiment of the present invention also provides a kind of network equipment, it is applied to exist at least one worldwide interoperability for microwave to access WiMAX and long-term advancing time division duplex LTE TDD mixed carrier in wireless telecommunication system, and at least one LTE TDD carrier wave, this network equipment comprises:

Sending module, sends downlink data or signaling for the LTE TDD descending sub frame by WiMAX and LTE TDD mixed carrier to LTE TDD subscriber terminal equipment, and wherein said LTE TDD descending sub frame at least comprises the 0th, 1,5 and 6 subframes of each radio frames; And send downlink data or signaling by the descending sub frame at least one LTETDD carrier wave;

Receiver module, for receiving LTE TDD subscriber terminal equipment by upstream data or the signaling of the sub-frame of uplink transmission of at least one LTE TDD carrier wave.

In the embodiment of the present invention, LTE TDD subscriber terminal equipment can receive the network equipment of LTE TDD system by downlink data or signaling that in each radio frames of WiMAX and LTE TDD mixed carrier, at least the 0th, 1,5 and 6 subframes of reservation send, due to using the 0th, 1,5 and 6 subframes as the resource of transmission LTE TDD user data, make the mixed carrier can compatible LTE TDD user terminal.Because mixed carrier can transmit the data of WiMAX and LTE TDD system simultaneously, therefore, by adopting the mode of WiMAX and LTE TDD mixed carrier, make WiMAX subscriber terminal equipment and LTE TDD subscriber terminal equipment can both access WiMAX and LTE TDD mixed carrier, communicate and realized WiMAX system and LTE TDD system coexists on same carrier wave with network equipment, and compatible LTE TDD user and WiMAX user well on WiMAX and LTE TDD mixed carrier.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 a is the frame assumption diagram of WiMAX system;

Fig. 1 b is the frame assumption diagram of LTE TDD system;

The flow chart of the data transmission method that Fig. 1 c provides for one embodiment of the invention;

The flow chart of the data transmission method that Fig. 2 a provides for another embodiment of the present invention;

Fig. 2 b is WiMAX on mixed carrier and the schematic diagram of LTE TDD resource allocation conditions;

The flow chart of the data transmission method that Fig. 3 provides for further embodiment of this invention;

The flow chart of the data transmission method that Fig. 4 provides for yet another embodiment of the invention;

The flow chart of the data transmission method that Fig. 5 provides for further embodiment of this invention;

The flow chart of the data transmission method that Fig. 6 provides for yet another embodiment of the invention;

The structural representation of the subscriber terminal equipment that Fig. 7 provides for one embodiment of the invention;

The structural representation of the subscriber terminal equipment that Fig. 8 provides for another embodiment of the present invention;

The structural representation of the network equipment that Fig. 9 provides for further embodiment of this invention;

The structural representation of the network equipment that Figure 10 provides for another embodiment of the present invention.

Embodiment

For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work, belongs to the scope of protection of the invention.

In the embodiment of the present invention, WiMAX system is mainly the configuration of the frame format based on WiMAX and LTE TDD mixed carrier to the evolution of LTE TDD system, therefore,, first the frame structure of two kinds of systems and the descending symbolic number of its support and the proportioning setting of up symbolic number are analyzed and illustrated.

Fig. 1 a is depicted as the frame assumption diagram of WiMAX system, and the length of a frame is 5 milliseconds of (millisecond; Hereinafter to be referred as ms), comprise 47 symbols, 1 transmitting conversion interval (TransmissionTransition Gap, hereinafter to be referred as TTG) and 1 reception conversion interval (Receive Transition Gap, hereinafter to be referred as RTG).First symbol is pilot tone (Preamble), and it is DL_MAP (Downlink Map, descending map distribute indication for downlink resource)/UL_MAP (UplinkMap, up map distribute indication for ascending resource) that second symbol starts.In 47 symbols, for the symbol numbers of downlink transfer with for the symbol numbers of uplink, can configure, table 1 has provided descending symbolic number and the setting of up symbolic number proportioning that WiMAX system is supported.

Table 1

Descending symbolic number: up symbolic number
	35∶12
34∶13
	33∶14
32∶15
	31∶16
30∶17
	29∶18
28∶19
	27∶20
26∶21

Fig. 1 b has provided the frame assumption diagram of LTE TDD system, and one of them radio frames length is 10ms, and the field that is 5ms by two length forms, and the subframe that each field is 1ms by 5 length forms.In LTE TDD system, there are two kinds of subframes, the subframe being formed by the time slot of 2 length 0.5ms and by downward guide time slot (Downlink Pilot Time Slot; Hereinafter to be referred as: DwPTS), protection interval (Guard Period, hereinafter to be referred as GP) and up guide time slot (Uplink Pilot Time Slot; Hereinafter to be referred as: the special subframe that UpPTS) three parts form.

Table 2 has provided descending sub frame and the setting of sub-frame of uplink proportioning that LTE TDD system is supported, and wherein D, U and S represent respectively descending sub frame, sub-frame of uplink and special subframe.

Consider in radio frames, for the number of sub-frames of downlink transfer with for the number of sub-frames of uplink, also can configure, the descending sub frame providing in associative list 2 and the setting of sub-frame of uplink proportioning, can be according to ratio of uplink subframe to downlink subframe, it is special subframe that in radio frames the 1st or the 1st and the 6th subframe are set.In special subframe, DwPTS is partly for downlink transfer, and GP part is idle, and UpPTS is partly for uplink.The total length of DwPTS, GP and UpPTS is fixed as 1ms, and the length of every part also can configure.In special subframe, DwPTS can send downlink data, but UpPTS can not send upstream data, so special subframe also can be regarded as a special descending sub frame.

Table 2

The frame structure of the WiMAX based on above-mentioned introduction and LTE TDD system and descending/sub-frame of uplink proportioning arrange, the present invention adopts the mode of mixed carrier, by frame structure is carried out to suitable configuration, to realize WiMAX system to the smooth evolution of LTE TDD system, concrete scheme is as follows:

The flow chart of the data transmission method that Fig. 1 c provides for one embodiment of the invention, as shown in Fig. 1 c, this data transmission method can comprise:

Step 11, LTE TDD subscriber terminal equipment receive downlink data or the signaling that network equipment sends by the LTE TDD descending sub frame on WiMAX and LTETDD mixed carrier, and wherein said LTETDD descending sub frame at least comprises the 0th, 1,5 and 6 subframes of each radio frames.

In the present embodiment, in system, there is the mixed carrier of at least one WiMAX and LTE TDD.In WiMAX and LTE TDD mixed carrier, WiMAX system and LTE TDD system are used identical carrier wave, but taking respectively the different time transmits.The wireless frame length of LTE TDD system is 10ms, and the frame length of WiMAX system is 5ms.On WiMAX and LTE TDD mixed carrier, LTETDD subscriber terminal equipment and WiMAX subscriber terminal equipment come regularly, can have two reference times by LTE TDD radio frames and WiMAX frame respectively.In embodiments of the present invention, for convenience of description, the unified LTE TDD radio frames of selecting is regularly used as the reference time, and this radio frames is the 10ms radio frames of LTE TDD.

LTE TDD subscriber terminal equipment refers to the subscriber terminal equipment of at least supporting LTE TDD standard.Except supporting LTE TDD standard, can also support other standard, for example WiMAX simultaneously.

In order to keep the HARQ sequential relationship of LTE TDD system, the resource that WiMAX system and LTE TDD system take is in time the multiple of LTE TDD system subframe long (1 millisecond).But following situation can make an exception, for 1 millisecond of resource of distributing as LTE TDD special subframe, if this LTE TDD special subframe 1 millisecond of resource is below WiMAX ascending resource, the part that this LTE TDD special subframe UpPTS is corresponding so, except as the UpPTS of LTE TDD, also can be used as WiMAX uplink.

In a radio frames of LTE TDD system, for the number of sub-frames of downlink transfer with for the number of sub-frames of uplink, can configure, descending sub frame and the setting of sub-frame of uplink proportioning that the LTE TDD system providing according to table 2 is supported, wherein D, U and S represent respectively descending sub frame, sub-frame of uplink and special subframe.For LTE TDD system, in each 10ms radio frames, the 0th, 1,5 and 6 subframes have been carried synchronizing channel and physical layer broadcast channel,, Cell searching synchronous for user and obtain system information.As can be seen from Table 2, in LTE TDD system, the 0th subframe and the 5th subframe are descending sub frames, and the 1st subframe is special subframe, and the 6th subframe can be descending sub frame or special subframe.This part resource is necessary for the compatible LTE TDD of mixed carrier subscriber equipment, therefore the present embodiment, in WiMAX and LTE TDD mixed carrier, at least retains LTE TDD system and is used as descending sub frame and special subframe in the 0th, 1,5 and 6 subframes of each 10ms radio frames.Certainly, except 0,1,5 and 6 subframes, in WiMAX and LTE TDD mixed carrier, also can retain more subframe as the descending sub frame resource of LTE TDD.

Wherein, descending sub frame can transmitting downlink data or signaling, and special subframe comprises DwPTS, GP and UpPTS.In special subframe, DwPTS is for downlink transfer, and GP is idle, and UpPTS is for uplink.The total length of DwPTS, GP and UpPTS is fixed as 1ms, and the length of every part also can configure.In special subframe, DwPTS can send downlink data, but UpPTS can not send upstream data, so special subframe can be regarded as a special descending sub frame.Therefore, in the present embodiment, LTE TDD subscriber terminal equipment receives downlink data or the signaling that network equipment sends by the LTE TDD descending sub frame on WiMAX and LTE TDD mixed carrier, and wherein said LTE TDD descending sub frame at least comprises the 0th, 1,5 and 6 subframes of each radio frames.LTE TDD subscriber terminal equipment, by receiving synchronizing channel and the physical layer broadcast channel of the 0th, 1,5 and 6 subframe carryings, just can access WiMAX and LTE TDD mixed carrier, and communicates by letter with network equipment according to LTE TDD system regulation.

Step 12, LTE TDD subscriber terminal equipment send upstream data or signaling at the sub-frame of uplink of described WiMAX and LTE TDD mixed carrier to network equipment.Wherein said sub-frame of uplink is to arrange according to the ratio of uplink subframe to downlink subframe of LTE TDD system, for feeding back the response message corresponding with at least one subframe of described LTE TDD descending sub frame.

In LTE TDD system, according to the ratio of uplink subframe to downlink subframe of LTE TDD system, for the transfer of data of certain descending sub frame, stipulated the sub-frame of uplink of corresponding user feedback response message; For the transfer of data of certain sub-frame of uplink, the corresponding descending sub frame of base station feedback response message and the sub-frame of uplink of data re-transmission have also been stipulated.

In WiMAX and LTE TDD mixed carrier, for the HARQ sequential relationship that maintains LTE TDD is with compatible LTE TDD user better, particularly only support for example user of version 8 and version 9 of LTE TDD earlier version, according to the ratio of uplink subframe to downlink subframe of LTE TDD system, the subframe of feeding back uplink response message that can be corresponding with at least one LTE TDD descending sub frame or special subframe is set to the sub-frame of uplink of LTETDD system.That is to say, in the present embodiment, can LTE TDD sub-frame of uplink be set according to the ratio of uplink subframe to downlink subframe of LTE TDD system, LTE TDD subscriber terminal equipment is response message corresponding to network equipment feeding back downlink subframe to LTE TDD system at LTE TDD sub-frame of uplink.

In LTE TDD system, the sending and receiving of data is supported physical layer HARQ technology, to reduce data transmission delay and to obtain higher message transmission rate.In HARQ technology, data receiver need to feed back response message to data receiver, to help confirming whether data correctly receive.If data receiver is correct, to data receiver feedback acknowledgment response message; If data receiver mistake, denies response message to data receiver feedback.Therefore, can also utilize HARQ to retransmit subframe retransmits the data of sub-frame of uplink carrying.The ascending HARQ corresponding in the transfer of data of sub-frame of uplink retransmits subframe transmit ascending data or signaling.

The method of the present embodiment can also comprise: LTE TDD subscriber terminal equipment retransmits in subframe and sends upstream data or signaling to network equipment at HARQ, and HARQ wherein retransmits subframe for the data of sub-frame of uplink carrying are retransmitted.

By said method, just realized the object that sends upstream data to the network equipment of LTE TDD system.

At down direction, WiMAX subscriber terminal equipment can receive by the downlink resource not used by described LTE TDD system in described WiMAX and LTE TDD mixed carrier downlink data or the signaling of the network equipment transmission of WiMAX system;

At up direction, WiMAX subscriber terminal equipment sends upstream data or signaling by the ascending resource not used by described LTE TDD system in described WiMAX and LTE TDD mixed carrier to network equipment.

By said method, carry out transfer of data, just can realize WiMAX system to the smooth evolution of LTE TDD system.

In the embodiment of the present invention, LTE TDD subscriber terminal equipment can receive the network equipment of LTE TDD system by downlink data or signaling that in each radio frames of WiMAX and LTE TDD mixed carrier, at least the 0th, 1,5 and 6 subframes of reservation send, due to using the 0th, 1,5 and 6 subframes as the resource of transmission LTE TDD user data, make the mixed carrier can compatible LTE TDD user terminal.Because mixed carrier can transmit the data of WiMAX and LTE TDD system simultaneously, therefore, by adopting the mode of WiMAX and LTE TDD mixed carrier, make the network equipment of WiMAX system and LTE TDD system can both receive the data of carrying on mixed carrier, realized WiMAX system and LTE TDD system coexists on same carrier wave, and compatible LTE TDD user well on WiMAX and LTE TDD mixed carrier.Realized the smooth evolution of WiMAX system to LTE TDD system.

In the data transmission method that another embodiment of the present invention provides, for mixed carrier, in order to keep the high efficiency utilization of resources when providing favorable compatibility to LTETDD user, in the present embodiment by the subframe of LTE TDD descending sub frame with a grain of salt and the corresponding feeding back uplink response message of special subframe be all set to LTE TDD sub-frame of uplink.That is,, for the LTE TDD descending sub frame resource retaining, the up moment of feeding back the response message corresponding with these descending sub frames is arranged to LTE TDD sub-frame of uplink; For the LTE TDD special subframe resource retaining, if its DwPTS also can send downlink data, the up moment of feeding back the response message corresponding with special subframe is arranged to LTE TDD sub-frame of uplink.Now WiMAX and LTE TDD mixed carrier can not rely on other carrier wave and independent existence.

It is 1 that the present embodiment be take LTE TDD system ratio of uplink subframe to downlink subframe, with each 5ms field, by two descending sub frames, a special subframe and two sub-frame of uplink, consists of example and further illustrates WiMAX of the present invention to the scheme of LTE TDD evolution.In following examples, all using the 10ms radio frames of LTE TDD regularly as being described with reference to the time.

When in the radio frames of described LTE TDD system, the proportioning of sub-frame of uplink, special subframe and descending sub frame is 2: 1: 2, the network equipment feeding back uplink response message at sub-frame of uplink corresponding to described the 0th, 1,5 and 6 subframes to described LTE TDD system.For WiMAX and LTE TDD mixed carrier, first retain the 0th, 1,5 and 6 subframes as LTE TDD resource.To the 0th of current wireless frame the and 1 subframe, its corresponding response message is in the 7th subframe feedback of current wireless frame; The 5th, 6 subframes to current wireless frame, its corresponding response message is in the 2nd subframe feedback of the next radio frames of current wireless frame.

The method flow diagram of the transfer of data providing for another embodiment of the present invention referring to Fig. 2 a, the method for the present embodiment comprises:

Step 21, LTE TDD subscriber terminal equipment receive network equipment by downlink data or the signaling of the 0th, 1,5 and 6 subframes transmissions of each radio frames on WiMAX and LTETDD mixed carrier.

When LTE TDD sub-frame of uplink is set, by the subframe of LTE TDD descending sub frame with a grain of salt and feeding back uplink response message corresponding to special subframe be all set to LTE TDD sub-frame of uplink.According to response message feedback constantly, the sub-frame of uplink resource using the 2nd and 7 subframes of a radio frames as LTE TDD.For the 2nd and 7 subframes of current wireless frame, its corresponding HARQ retransmission time is respectively in the 2nd and the 7th subframe of next radio frames, thereby in 10ms radio frames, do not need to arrange new LTE TDD sub-frame of uplink resource.In 10ms radio frames, the 0th, 1,2,5,6 and 7 subframes are just arranged for the resource of LTE TDD system transmission, and the 3rd, 4,8 and 9 remaining subframes can be arranged for the resource of WiMAX system transmission.Consider the 4th in 10ms radio frames and 9 subframes according to the sub-frame allocation of LTETDD for downlink transfer, so can be arranged for the resource of WiMAX downlink transfer; The 3rd and 8 subframes according to the sub-frame allocation of LTE TDD for uplink, so can be arranged for the resource of WiMAX uplink.

It should be noted that, for WiMAX transmission, first symbol in its 5ms frame, for pilot transmission, belongs to the downlink resource of WiMAX.For LTE TDD system, the 0th subframe in its 10ms radio frames is descending sub frame.To a moment, distributing as after LTE TDD downlink resource, can not also be assigned with the downlink resource as WiMAX simultaneously.Frame head is to be respectively used to provide regularly to the subscriber terminal equipment of LTE TDD and WiMAX.The 0th subframe of LTE TDD radio frames is downlink frame, and the primary sign of WiMAX frame is also downlink resource.In order to meet these requirements, the frame head of the frame head of WiMAX frame and LTE tdd frame can not align, because a moment can not both be divided the downlink transfer that manufactures LTE TDD, also divides the downlink transfer that manufactures WiMAX simultaneously.Thereby on mixed carrier, the frame head of the 10ms radio frames of the 5ms frame of WiMAX and LTE TDD system can not align, can there is a frame head biasing.

Consider that the start-up portion of each 5ms frame of WiMAX is for downlink transfer, WiMAX 5ms frame head can have the frame head biasing of 1ms in advance with respect to the wireless frame head of 10ms of LTE TDD, postpones in other words the frame head biasing of 4ms or 9ms.WiMAX on mixed carrier and LTE TDD resource allocation conditions are as shown in Figure 2 b.In WiMAX system in the evolution of TDD LTE system, when in the radio frames of LTE TDD system, the proportioning of sub-frame of uplink, special subframe and descending sub frame is 2: 1: 2.In the 10ms of LTETDD system radio frames, 0th～9 subframes are set and are followed successively by LTE TDD descending sub frame, LTE TDD special subframe, LTE TDD sub-frame of uplink, WiMAX ascending resource, WiMAX downlink resource, LTE TDD descending sub frame, LTE TDD special subframe, LTE TDD sub-frame of uplink, WiMAX ascending resource and WiMAX downlink resource; The frame head of WiMAX 5ms frame has with respect to the frame head of LTE TDD 10ms radio frames the frame head biasing that shifts to an earlier date 1ms, postpones 4ms or delay 9ms.In the example of Fig. 2 b, except WiMAX and LTE TDD mixed carrier, also there is an independently LTE TDD carrier wave, can see, LTE TDD resource on mixed carrier and LTE TDD carrier wave have identical frame regularly, and uplink and the downlink transfer of mixed carrier and LTE TDD carrier wave are all alignd respectively.

Step 22, LTE TDD subscriber terminal equipment send upstream data or signaling by the 2nd and 7 subframes of each radio frames on WiMAX and LTE TDD mixed carrier to network equipment.

Particularly, for the 0th subframe of current wireless frame and the up response message corresponding to downlink data of the 1st subframe transmission, LTE TDD subscriber terminal equipment feeds back to network equipment in the 7th subframe of current wireless frame; For the 5th subframe of current wireless frame and the up response message corresponding to downlink data of the 6th subframe transmission, LTE TDD subscriber terminal equipment feeds back to network equipment in the 2nd subframe of next radio frames of current wireless frame.

It is the 2nd subframe of next radio frames that the ascending HARQ corresponding with the 2nd subframe of current wireless frame retransmits subframe; It is the 7th subframe of next radio frames that the ascending HARQ corresponding with the 7th subframe of current wireless frame retransmits subframe.

By said method, just realized to the network equipment of LTE TDD system and sent upstream data or signaling.

At down direction, WiMAX subscriber terminal equipment receives network equipment by the 4th subframe of each radio frames in described WiMAX and LTE TDD mixed carrier and downlink data or the signaling of the 9th subframe transmission.

At up direction, WiMAX subscriber terminal equipment sends upstream data or signaling by the 3rd subframe and the 8th subframe of each radio frames in described WiMAX and LTE TDD mixed carrier to network equipment.

Except WiMAX and LTE TDD mixed carrier, in system, can also there is independently LTE TDD carrier wave and/or WiMAX carrier wave.When independently WiMAX carrier wave and/or WiMAX carrier wave are with mixed carrier during in identical or nearby frequency bands, the uplink between these carrier waves and downlink transfer should be alignd respectively, to avoid interfering with each other between up-downgoing transmission.

In the present embodiment, LTE TDD subscriber terminal equipment can receive the network equipment of LTE TDD system by downlink data or signaling that in each radio frames of WiMAX and LTE TDD mixed carrier, at least the 0th, 1,5 and 6 subframes of reservation send, due to using the 0th, 1,5 and 6 subframes as the resource of transmission LTE TDD user data, make the mixed carrier can compatible LTE TDD user terminal.And by the subframe of LTE TDD descending sub frame with a grain of salt and the corresponding feeding back uplink response message of special subframe be all set to LTE TDD sub-frame of uplink, when realizing WiMAX system and LTE TDD system and coexisting, make in communication system WiMAX and LTE TDD mixed carrier can not rely on other carrier wave and independent existence on same carrier wave.

In order to reduce the shared resource of LTE TDD system uplink subframe in WiMAX and LTE TDD mixed carrier, in system except mixed carrier, also at least have one independently during LTE TDD carrier wave, on mixed carrier, only the subframe of the part LTE TDD descending sub frame of reservation or feeding back uplink response message corresponding to special subframe is set to LTE TDD sub-frame of uplink.Owing to probably not having ascending resource to carry out feeding back uplink response message, can carry out feeding back uplink response message on independent LTE TDD carrier wave by carrier aggregation in mixed carrier.

In the data transmission method that further embodiment of this invention provides, for mixed carrier, for WiMAX user being provided to maximum up covering, the present embodiment is when arranging LTE TDD sub-frame of uplink, and the subframe of the feeding back uplink response message that the part LTE TDD descending sub frame of reservation or special subframe are corresponding is set to LTE TDD sub-frame of uplink.

When in the radio frames of described LTE TDD system, the proportioning of sub-frame of uplink, special subframe and descending sub frame is 2: 1: 2, sub-frame of uplink corresponding to part subframe in described the 0th, 1,5 and 6 subframes is to the network equipment feeding back uplink response message of described LTE TDD system.The frame head of described WiMAX system wireless frame exists 1 millisecond in advance, postpones 4 milliseconds or postpone the frame head biasing of 9 milliseconds with respect to the frame head of described LTE TDD system wireless frame.

Because taking respectively different sub-frame of uplink, the 0th, 1 subframe and the 5th, 6 subframes carry out feeding back uplink response message.The subframe of feeding back uplink response message that therefore can be only corresponding with the 0th, 1 subframe is set to LTE TDD sub-frame of uplink, or only the subframe of the feeding back uplink response message corresponding with the 5th, 6 subframes is set to LTE TDD sub-frame of uplink.

The only subframe of the feeding back uplink response message corresponding with the 5th, 6 subframes of take is set to LTE TDD sub-frame of uplink as example describes, and feeds back constantly the sub-frame of uplink resource using the 2nd subframe of a radio frames as LTE TDD according to response message.For the transfer of data in the 2nd subframe, corresponding HARQ retransmission time carries out in the 2nd subframe of next radio frames, thereby in 10ms radio frames, does not need to arrange new LTE TDD sub-frame of uplink resource.In 10ms radio frames, the 0th, 1,2,5 and 6 subframes are just arranged for the resource of LTE TDD transmission, and the 3rd, 4,7,8 and 9 remaining subframes can be arranged for the resource of WiMAX transmission.Consider the 4th in 10ms radio frames and 9 subframes according to the sub-frame allocation of LTE TDD for downlink transfer, so can be arranged for the resource of WiMAX downlink transfer; 3rd, 7 and 8 subframes according to the sub-frame allocation of LTE TDD for uplink, so can be arranged for the resource of WiMAX uplink.The start-up portion of considering each 5ms frame of WiMAX is for downlink transfer, and WiMAX 5ms frame head can have the frame head biasing of 1ms in advance with respect to the wireless frame head of 10ms of LTE TDD, postpones in other words the frame head biasing of 4ms or 9ms.In WiMAX system in the evolution of TDD LTE system, when LTE TDD system adopts ratio of uplink subframe to downlink subframe 2D: 1S: during 2U, with the 10ms radio frames of LTE TDD system regularly, 0th～9 subframes that each 10ms radio frames is set are followed successively by LTE TDD descending sub frame, LTE TDD special subframe, LTE TDD sub-frame of uplink, WiMAX ascending resource, WiMAX downlink resource, LTE TDD descending sub frame, LTE TDD special subframe, WiMAX ascending resource, WiMAX ascending resource and WiMAX downlink resource; The frame head of WiMAX 5ms frame has with respect to the frame head of LTE TDD 10ms radio frames the frame head biasing that shifts to an earlier date 1ms, postpones 4ms or delay 9ms.For the 0th, 1 subframe on WiMAX and LTE TDD mixed carrier, its up response message cannot feed back on mixed carrier, now, can dispatch the LTE TDD user who supports carrier aggregation, carrys out feeding back uplink response message on LTE TDD carrier wave independently; For the 2nd, 5 on mixed carrier and 6 subframes, can dispatch all LTE TDD users, comprise the user who only supports LTE version 8 and version 9.

In like manner, when the subframe of only corresponding with the 0th, 1 subframe feeding back uplink response message is set to LTETDD sub-frame of uplink, with the 10ms radio frames of LTE TDD system regularly, 0th～9 subframes that each 10ms radio frames is set are followed successively by LTE TDD descending sub frame, LTE TDD special subframe, WiMAX ascending resource, WiMAX ascending resource, WiMAX downlink resource, LTE TDD descending sub frame, LTETDD special subframe, LTE TDD sub-frame of uplink, WiMAX ascending resource and WiMAX downlink resource; The frame head of WiMAX 5ms frame has with respect to the frame head of LTE TDD 10ms radio frames the frame head biasing that shifts to an earlier date 1ms, postpones 4ms or delay 9ms.

The method flow diagram of the transfer of data providing for further embodiment of this invention referring to Fig. 3, the method for the present embodiment comprises:

Step 31, LTE TDD subscriber terminal equipment receive network equipment by downlink data or the signaling of the 0th, 1,5 and 6 subframes transmissions of each radio frames on WiMAX and LTETDD mixed carrier.

Step 32, LTE TDD subscriber terminal equipment send upstream data or signaling by the 2nd subframe or the 7th subframe of each radio frames on WiMAX and LTE TDD mixed carrier to network equipment.

Particularly, when 2nd subframe of LTE TDD subscriber terminal equipment by each radio frames on WiMAX and LTE TDD mixed carrier sends upstream data or signaling to network equipment, LTE TDD subscriber terminal equipment the 2nd subframe feedback of current wireless frame with on up response message corresponding to the downlink data that sends of the 5th and 6 subframes of a radio frames, the ascending HARQ re-transmission subframe corresponding with the transmitting uplink data of the 2nd subframe of current wireless frame is the 2nd subframe of next radio frames.At down direction, WiMAX subscriber terminal equipment receives network equipment by the 4th subframe of each radio frames in described WiMAX and LTE TDD mixed carrier and downlink data or the signaling of the 9th subframe transmission; At up direction, WiMAX subscriber terminal equipment sends upstream data or signaling by the 3rd subframe, the 7th subframe and the 8th subframe of each radio frames in described WiMAX and LTE TDD mixed carrier to network equipment.Except described WiMAX and LTE TDD mixed carrier, in system, also there is at least one independent LTE TDD carrier wave.LTE TDD subscriber terminal equipment receives after the downlink data that the 0th and 1 subframe of network equipment by each radio frames on WiMAX and LTE TDD mixed carrier send, and corresponding response message feeds back in the 7th subframe of same wireless frame by LTE TDD carrier wave independently.

When 7th subframe of LTE TDD subscriber terminal equipment by each radio frames on WiMAX and LTE TDD mixed carrier sends upstream data or signaling to network equipment, up response message corresponding to downlink data that LTE TDD subscriber terminal equipment sends with the 0th and 1 subframe of this radio frames in the 7th subframe feedback, it is the 7th subframe of next radio frames that the ascending HARQ corresponding with the transmitting uplink data of described the 7th subframe retransmits subframe.At down direction, WiMAX subscriber terminal equipment receives network equipment by the 4th subframe of each radio frames in described WiMAX and LTE TDD mixed carrier and downlink data or the signaling of the 9th subframe transmission; At up direction, WiMAX subscriber terminal equipment sends upstream data or signaling by the 2nd subframe, the 3rd subframe and the 8th subframe of each radio frames in described WiMAX and LTE TDD mixed carrier to network equipment.Except described WiMAX and LTE TDD mixed carrier, in system, also there is at least one independent LTE TDD carrier wave.LTE TDD subscriber terminal equipment receives after the downlink data that the 5th and 6 subframes of network equipment by each radio frames on WiMAX and LTE TDD mixed carrier send, and corresponding response message feeds back in the 2nd subframe of next radio frames by LTE TDD carrier wave independently.

There is frame head biasing in the frame head of the frame head of WiMAX system wireless frame and LTE TDD system wireless frame.The frame head of WiMAX 5ms frame has with respect to the frame head of LTE TDD 10ms radio frames the frame head biasing that shifts to an earlier date 1ms, postpones 4ms or delay 9ms.

By said method, just realized mixed carrier and LTE TDD carrier wave carries out transfer of data by carrier aggregation mode.

In the present embodiment, LTE TDD subscriber terminal equipment can receive the network equipment of LTE TDD system by downlink data or signaling that in each radio frames of WiMAX and LTE TDD mixed carrier, at least the 0th, 1,5 and 6 subframes of reservation send, due to using the 0th, 1,5 and 6 subframes as the resource of transmission LTE TDD user data, make the mixed carrier can compatible LTE TDD user terminal.And the subframe of the feeding back uplink response message that the part LTE TDD descending sub frame retaining on mixed carrier or special subframe are corresponding is set to LTE TDD sub-frame of uplink; by LTE TDD carrier wave feeding back uplink response message independently, can guarantee thus to exist in mixed carrier the WiMAX uplink transmission resource of continuous 2ms.When realizing WiMAX system and LTE TDD system and coexisting, can provide larger up covering to WiMAX user on same carrier wave.

Yet another embodiment of the invention provides a kind of data transmission method, in the present embodiment, supposes not have in mixed carrier the resource of LTE TDD sub-frame of uplink, now can use the independently up response message of LTE TDD carrier transmission.In wireless telecommunication system, there is at least one WiMAX and LTE TDD mixed carrier, and at least one LTE TDD carrier wave, referring to Fig. 4, the method for the transfer of data of the present embodiment is as follows:

Step 41, LTE TDD subscriber terminal equipment receive downlink data or the signaling that network equipment sends by the LTE TDD descending sub frame on WiMAX and LTETDD mixed carrier, and wherein said LTETDD descending sub frame at least comprises the 0th, 1,5 and 6 subframes of each radio frames; And receive network equipment by downlink data or the signaling of the descending sub frame transmission at least one LTE TDD carrier wave.

Wherein, LTE TDD subscriber terminal equipment receives the network equipment of LTE TDD system by the 0th subframe of each radio frames on WiMAX and LTE TDD mixed carrier and downlink data or the signaling of the 5th subframe transmission, and the network equipment that receives described LTE TDD system is by the 1st subframe of each radio frames on described WiMAX and LTE TDD mixed carrier and downlink data or the signaling of the 6th subframe transmission.

Step 42, LTE TDD subscriber terminal equipment send upstream data or signaling by the sub-frame of uplink of at least one LTE TDD carrier wave to network equipment.

For the special subframe in the LTE TDD descending sub frame on described WiMAX and LTE TDD mixed carrier, i.e. the 1st subframe and the 6th subframe, LTE TDD subscriber terminal equipment can be by the up signaling of the up guide time slot transmission LTE TDD system in these special subframes, for example visit logical reference signal (Sounding Reference Signal, SRS) or accidental access signal.Or, by the up guide time slot in the LTE TDD special subframe on WiMAX and LTE TDD mixed carrier, as WiMAX ascending resource.

The up signaling that LTE TDD subscriber terminal equipment sends comprises up response message corresponding to downlink data sending with the network equipment of described LTE TDD system.When sending up response message, according to carrier aggregation mode, by least one LTE TDD carrier wave, to the network equipment of described LTE TDD system, send the up response message corresponding with the downlink data of the network equipment transmission of described LTE TDD system.

Such as, when selecting 0,1,5 and 6 subframes as descending sub frame resource, and while using independently LTE TDD carrier wave, can be at the feedback up response message corresponding with the downlink data of described the 0th subframe and the transmission of the 1st subframe on LTE TDD carrier wave independently; Independently on LTE TDD carrier wave, feeding back up response message corresponding to downlink data sending with described the 5th subframe and the 6th subframe.

At down direction, WiMAX subscriber terminal equipment receives downlink data or the signaling of the network equipment transmission of WiMAX system by the downlink resource not used by described LTE TDD system in described WiMAX and LTE TDD mixed carrier;

At up direction, WiMAX subscriber terminal equipment is network equipment transmission upstream data or the signaling to described WiMAX system by the ascending resource in described WiMAX and LTE TDD mixed carrier.When the up guide time slot in LTE TDD special subframe is used as WiMAX ascending resource, described ascending resource comprises all ascending resources of described WiMAX and LTE TDD mixed carrier; When the up guide time slot in LTE TDD special subframe is used for transmitting the up signaling of LTE TDD system, described ascending resource comprises all ascending resources except up guide time slot of described WiMAX and LTE TDD mixed carrier.

It should be noted that, in WiMAX and LTE TDD mixed carrier, there is frame head biasing in the frame head of the frame head of WiMAX system wireless frame and LTE TDD system wireless frame.When in the radio frames of described LTE TDD system, the proportioning of sub-frame of uplink, special subframe and descending sub frame is 2: 1: 2, the frame head of described WiMAX system wireless frame exists 1 millisecond in advance, postpones 4 milliseconds or postpone the frame head biasing of 9 milliseconds with respect to the frame head of described LTE TDD system wireless frame.

In the present embodiment, downlink data or signaling that the network equipment that LTE TDD subscriber terminal equipment can receive LTE TDD system sends by the 0th, 1,5 and 6 subframes that at least retain in each radio frames of WiMAX and LTE TDD mixed carrier, make the mixed carrier can compatible LTE TDD user terminal.And pass through independently LTE TDD carrier wave feeding back uplink response message, can guarantee thus the maximization of WiMAX uplink transmission resource in mixed carrier.When realizing WiMAX system and LTE TDD system and coexisting on same carrier wave, can provide maximum up covering to WiMAX user, can support flexibly the uplink of WiMAX.

The flow chart of the data transmission method that Fig. 5 provides for one embodiment of the invention, the method executive agent of the transfer of data of the present embodiment can be network equipment, as shown in Figure 5, this data transmission method can comprise:

Step 51, by the LTE TDD descending sub frame on WiMAX and LTE TDD mixed carrier, to LTE TDD subscriber terminal equipment, send downlink data or signaling, wherein said LTE TDD descending sub frame at least comprises the 0th, 1,5 and 6 subframes of each radio frames;

Upstream data or signaling that step 52, reception LTE TDD subscriber terminal equipment feed back on the sub-frame of uplink of described WiMAX and LTE TDD mixed carrier; Wherein said sub-frame of uplink is to arrange according to the ratio of uplink subframe to downlink subframe of described LTE TDD system, for feeding back the response message corresponding with at least one subframe of described LTE TDD descending sub frame.

Wherein, in the present embodiment, in the radio frames of LTE TDD system, the proportioning of sub-frame of uplink, special subframe and descending sub frame is 2: 1: 2; Radio frames setting on mixed carrier can be in the following ways:

1,0th～9 subframes that each 10ms radio frames are set are followed successively by LTE TDD descending sub frame, LTETDD special subframe, LTE TDD sub-frame of uplink, WiMAX ascending resource, WiMAX downlink resource, LTE TDD descending sub frame, LTE TDD special subframe, LTE TDD sub-frame of uplink, WiMAX ascending resource and WiMAX downlink resource.Now, on mixed carrier, can transmit LTE TDD upstream data and signaling, the WiMAX in system and LTE TDD mixed carrier can not rely on other carrier wave and independent existence.

2,0th～9 subframes that each 10ms radio frames are set are followed successively by LTE TDD descending sub frame, LTETDD special subframe, LTE TDD sub-frame of uplink, WiMAX ascending resource, WiMAX downlink resource, LTE TDD descending sub frame, LTE TDD special subframe, WiMAX ascending resource, WiMAX ascending resource and WiMAX downlink resource; Or 0th～9 subframes that each 10ms radio frames is set are followed successively by LTE TDD descending sub frame, LTE TDD special subframe, WiMAX ascending resource, WiMAX ascending resource, WiMAX downlink resource, LTE TDD descending sub frame, LTE TDD special subframe, LTETDD sub-frame of uplink, WiMAX ascending resource and WiMAX downlink resource.

Now, can be by LTE TDD carrier wave feeding back uplink response message independently, can, when realizing WiMAX system and LTE TDD system and coexisting, to WiMAX user, provide larger up covering on same carrier wave.

In the present embodiment, downlink data or signaling that network equipment sends by the 0th, 1,5 and 6 subframes that at least retain in each radio frames of WiMAX and LTE TDD mixed carrier, due to using the 0th, 1,5 and 6 subframes as the resource of transmission LTE TDD user data, make the mixed carrier can compatible LTE TDD user terminal.Realized WiMAX system and LTE TDD system coexists on same carrier wave, and compatible LTE TDD user and WiMAX user well on WiMAX and LTE TDD mixed carrier.

The flow chart of the data transmission method that Fig. 6 provides for one embodiment of the invention, it is applied to exist in wireless telecommunication system at least one WiMAX and LTE TDD mixed carrier, and at least one LTETDD carrier wave, by LTE TDD carrier wave feeding back uplink response message independently.The method executive agent of the transfer of data of the present embodiment can be network equipment, and as shown in Figure 6, this data transmission method can comprise:

Step 61, by the LTE TDD descending sub frame on WiMAX and LTE TDD mixed carrier, to LTE TDD subscriber terminal equipment, send downlink data or signaling, wherein said LTE TDD descending sub frame at least comprises the 0th, 1,5 and 6 subframes of each radio frames; And send downlink data or signaling by the descending sub frame at least one LTE TDD carrier wave;

Step 62, reception LTE TDD subscriber terminal equipment are by upstream data or the signaling of the sub-frame of uplink transmission of at least one LTE TDD carrier wave.

In the present embodiment, by LTE TDD carrier wave feeding back uplink response message independently, in the radio frames of LTE TDD system, the proportioning of sub-frame of uplink, special subframe and descending sub frame is 2: 1: 2; Radio frames setting on mixed carrier can be in the following ways: 0th～9 subframes that each 10ms radio frames is set are followed successively by LTE TDD descending sub frame, LTE TDD special subframe, WiMAX ascending resource, WiMAX ascending resource, WiMAX downlink resource, LTE TDD descending sub frame, LTE TDD special subframe, WiMAX ascending resource, WiMAX ascending resource and WiMAX downlink resource.Now, can guarantee the utilance maximum of WiMAX resource in hybrid frame.

In the present embodiment, the downlink data or the signaling that by the 0th, 1,5 and 6 subframes that at least retain in each radio frames of WiMAX and LTE TDD mixed carrier, send, make the mixed carrier can compatible LTETDD user terminal.And pass through independently LTE TDD carrier wave feeding back uplink response message, can guarantee thus the maximization of WiMAX uplink transmission resource in mixed carrier.When realizing WiMAX system and LTETDD system and coexisting on same carrier wave, can provide maximum up covering to WiMAX user, can support flexibly the uplink of WiMAX.

One embodiment of the invention provides a kind of subscriber terminal equipment, and this equipment can be LTE TDD subscriber terminal equipment, for realizing the smooth evolution between WiMAX system and LTE system.Shown in Figure 7 is the structural representation of this subscriber terminal equipment, comprising:

Receiver module 71, the downlink data or the signaling that for receiving network equipment, by the LTE TDD descending sub frame on WiMAX and LTE TDD mixed carrier, send, wherein said LTE TDD descending sub frame at least comprises the 0th, 1,5 and 6 subframes of each radio frames;

Sending module 72, sends upstream data or signaling for the sub-frame of uplink at described WiMAX and LTE TDD mixed carrier to network equipment; Wherein said sub-frame of uplink is to arrange according to the ratio of uplink subframe to downlink subframe of described LTE TDD system, for feeding back the response message corresponding with at least one subframe of described LTE TDD descending sub frame.

Retransmission module 73, for retransmitting in subframe and send upstream data or signaling to network equipment at ascending HARQ, wherein HARQ retransmits subframe for the data of described sub-frame of uplink carrying are retransmitted.

Sending module 72, for sending upstream data or signaling to network equipment on sub-frame of uplink corresponding to all or part of subframe of the 0th, 1,5 and 6 subframes at described WiMAX and LTE TDD mixed carrier.

On sub-frame of uplink corresponding to part subframe in the 0th, 1,5 and 6 subframes of sending module at WiMAX and LTE TDD mixed carrier, to network equipment, send upstream data or signaling.Can use the independently up response message of LTE TDD carrier transmission.Now, in communication system, except described WiMAX and LTE TDD mixed carrier, in system, also there is at least one independently LTE TDD carrier wave;

Accordingly, sending module 72, also for independently feeding back up response message corresponding to downlink data sending with the 0th subframe and the 1st subframe of described WiMAX and LTE TDD mixed carrier on LTE TDD carrier wave; Or, independently on LTE TDD carrier wave, feeding back up response message corresponding to downlink data sending with the 5th subframe and the 6th subframe of described WiMAX and LTETDD mixed carrier.

In the embodiment of the present invention, LTE TDD subscriber terminal equipment can receive the network equipment of LTE TDD system by downlink data or signaling that in each radio frames of WiMAX and LTE TDD mixed carrier, at least the 0th, 1,5 and 6 subframes of reservation send, due to using the 0th, 1,5 and 6 subframes as the resource of transmission LTE TDD user data, make the mixed carrier can compatible LTE TDD user terminal.Realized WiMAX system and LTE TDD system coexists on same carrier wave, and compatible LTE TDD user well on WiMAX and LTE TDD mixed carrier.Realized the smooth evolution of WiMAX system to LTE TDD system.

Another embodiment of the present invention provides a kind of subscriber terminal equipment, it is applied to exist in wireless telecommunication system at least one WiMAX and LTE TDD mixed carrier, and at least one LTE TDD carrier wave, this subscriber terminal equipment can be LTE TDD subscriber terminal equipment, for realizing the smooth evolution between WiMAX system and LTE system.Shown in Figure 8 is the structural representation of this subscriber terminal equipment, comprising:

Receiver module 81, the downlink data or the signaling that for receiving network equipment, by the LTE TDD descending sub frame on WiMAX and LTE TDD mixed carrier, send, wherein said LTE TDD descending sub frame at least comprises the 0th, 1,5 and 6 subframes of each radio frames; And receive network equipment by downlink data or the signaling of the descending sub frame transmission at least one LTE TDD carrier wave;

Sending module 82, sends upstream data or signaling for the sub-frame of uplink by least one LTE TDD carrier wave to network equipment.

Further, in WiMAX and LTE TDD mixed carrier, there is frame head biasing in the frame head of the frame head of WiMAX system wireless frame and LTE TDD system wireless frame.When in the radio frames of described LTE TDD system, the proportioning of sub-frame of uplink, special subframe and descending sub frame is 2: 1: 2, the frame head of WiMAX system wireless frame exists 1 millisecond in advance, postpones 4 milliseconds or postpone the frame head biasing of 9 milliseconds with respect to the frame head of described LTE TDD system wireless frame.

Sending module 82, up response message corresponding to downlink data sending with the 0th subframe and the 1st subframe of described WiMAX and LTETDD mixed carrier specifically for feedback on LTE TDD carrier wave, and up response message corresponding to the downlink data sending with the 5th subframe and the 6th subframe of described WiMAX and LTE TDD mixed carrier.

In the embodiment of the present invention, downlink data or signaling that the network equipment that subscriber terminal equipment can receive LTE TDD system sends by the 0th, 1,5 and 6 subframes that at least retain in each radio frames of WiMAX and LTE TDD mixed carrier, make the mixed carrier can compatible LTE TDD user terminal.And pass through independently LTE TDD carrier wave feeding back uplink response message, can guarantee thus the maximization of WiMAX transfer resource in mixed carrier.When realizing WiMAX system and LTE TDD system and coexisting on same carrier wave, can provide maximum up covering to WiMAX user, can support flexibly the uplink of WiMAX.

Further embodiment of this invention provides a kind of network equipment, for realizing the smooth evolution between WiMAX system and LTE system.Shown in Figure 9 is the structural representation of this network equipment, comprising:

Sending module 91, for sending downlink data or signaling by the LTE TDD descending sub frame on WiMAX and LTE TDD mixed carrier to LTE TDD subscriber terminal equipment, wherein said LTE TDD descending sub frame at least comprises the 0th, 1,5 and 6 subframes of each radio frames;

Receiver module 92, for upstream data or the signaling of feeding back on the sub-frame of uplink of described WiMAX and LTETDD mixed carrier in reception LTE TDD subscriber terminal equipment; Wherein said sub-frame of uplink is to arrange according to the ratio of uplink subframe to downlink subframe of described LTE TDD system, for feeding back the response message corresponding with at least one subframe of described LTETDD descending sub frame.

Described receiver module 92, also for receiving LTE TDD subscriber terminal equipment, at uplink hybrid automatic repeat request HARQ corresponding to the transfer of data with described sub-frame of uplink, retransmit upstream data or the signaling sending in subframe, wherein HARQ retransmits subframe for the data of described sub-frame of uplink carrying are retransmitted.

At up direction, sending module 91, also sends downlink data or signaling for the downlink resource not used by described LTE TDD system by described WiMAX and LTE TDD mixed carrier to WiMAX subscriber terminal equipment;

At down direction, receiver module 92, the upstream data or the signaling that also for receiving WiMAX subscriber terminal equipment, by described WiMAX and LTE TDD mixed carrier, by the ascending resource of described LTE TDD system use, are not sent.

In the radio frames of described LTE TDD system, the proportioning of sub-frame of uplink, special subframe and descending sub frame is 2: 1: 2; Described receiver module 92 also sends upstream data or signaling to network equipment for receiving LTE TDD subscriber terminal equipment on sub-frame of uplink corresponding to all or part of subframe of the 0th, 1,5 and 6 subframes of described WiMAX and LTE TDD mixed carrier.

On sub-frame of uplink corresponding to part subframe in the 0th, 1,5 and 6 subframes at WiMAX and LTE TDD mixed carrier, to network equipment, send upstream data or signaling.Can use the independently up response message of LTETDD carrier transmission.Now, in communication system, except described WiMAX and LTETDD mixed carrier, in system, also there is at least one independently LTE TDD carrier wave;

Receiver module 92, is independently feeding back up response message corresponding to downlink data sending with the 0th subframe and the 1st subframe of described WiMAX and LTE TDD mixed carrier on LTE TDD carrier wave for receiving LTE TDD ustomer premises access equipment; Or, receive LTE TDD ustomer premises access equipment and independently on LTETDD carrier wave, feeding back up response message corresponding to downlink data sending with the 5th subframe and the 6th subframe of described WiMAX and LTE TDD mixed carrier.

The present embodiment is by adopting the mode of mixed carrier to realize the transfer of data between WiMAX system and LTE TDD system, realize WiMAX system and LTE TDD system coexists on same carrier wave, the good compatibility of realization to LTE TDD user, has realized the smooth evolution of WiMAX system and LTE TDD system.

Another embodiment of the present invention provides a kind of network equipment, and it is applied to exist at least one worldwide interoperability for microwave to access WiMAX and long-term advancing time division duplex LTE TDD mixed carrier in wireless telecommunication system, and at least one LTE TDD carrier wave.For realizing the smooth evolution between WiMAX system and LTE system.Shown in Figure 10 is the structural representation of this network equipment, comprising:

Sending module 101, for sending downlink data or signaling by the LTE TDD descending sub frame on WiMAX and LTE TDD mixed carrier to LTE TDD subscriber terminal equipment, wherein said LTE TDD descending sub frame at least comprises the 0th, 1,5 and 6 subframes of each radio frames; And send downlink data or signaling by the descending sub frame at least one LTETDD carrier wave;

Receiver module 102, for receiving LTE TDD subscriber terminal equipment by upstream data or the signaling of the sub-frame of uplink transmission of at least one LTE TDD carrier wave.

Described receiver module, up response message corresponding to downlink data also sending for receive that feed back and the 0th subframe described WiMAX and LTE TDD mixed carrier of LTE TDD subscriber terminal equipment and the 1st subframe on LTE TDD carrier wave, and up response message corresponding to the downlink data sending with the 5th subframe and the 6th subframe of described WiMAX and LTE TDD mixed carrier.

In addition, described sending module 101, also the downlink resource for not used by described LTE TDD system by WiMAX and LTE TDD mixed carrier, sends downlink data or signaling to WiMAX subscriber terminal equipment;

Described receiver module 102, the upstream data or the signaling that for receiving WiMAX subscriber terminal equipment, by described WiMAX and LTE TDD mixed carrier, by the ascending resource of described LTE TDD system use, are not sent.

In the present embodiment, downlink data or signaling that network equipment sends by the 0th, 1,5 and 6 subframes that at least retain in each radio frames of WiMAX and LTE TDD mixed carrier, make the mixed carrier can compatible LTE TDD user terminal.And pass through independently LTE TDD carrier wave feeding back uplink response message, can guarantee thus the maximization of WiMAX transfer resource in mixed carrier.When realizing WiMAX system and LTE TDD system and coexisting on same carrier wave, can provide maximum up covering to WiMAX user, can support flexibly the uplink of WiMAX.

One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can complete by the relevant hardware of program command, aforementioned program can be stored in a computer read/write memory medium, this program, when carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.

It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.

It will be appreciated by those skilled in the art that the module in the equipment in embodiment can be distributed in the equipment of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more equipment that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.

Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims

1. a data transmission method, is characterized in that, comprising:

LTE TDD subscriber terminal equipment sends upstream data or signaling at the sub-frame of uplink of described WiMAX and LTE TDD mixed carrier to network equipment; Wherein said sub-frame of uplink is to arrange according to the ratio of uplink subframe to downlink subframe of described LTE TDD system, for feeding back the response message corresponding with at least one subframe of described LTE TDD descending sub frame.

2. method according to claim 1, is characterized in that, also comprises:

LTE TDD subscriber terminal equipment retransmits in subframe and sends upstream data or signaling to network equipment at uplink hybrid automatic repeat request HARQ, and wherein HARQ retransmits subframe for the data of described sub-frame of uplink carrying are retransmitted.

3. method according to claim 1, is characterized in that, also comprises:

WiMAX subscriber terminal equipment receives network equipment and sends downlink data or signaling by the downlink resource not used by described LTE TDD system in described WiMAX and LTE TDD mixed carrier;

WiMAX subscriber terminal equipment sends upstream data or signaling by the ascending resource not used by described LTE TDD system in described WiMAX and LTE TDD mixed carrier to network equipment.

4. method according to claim 1, is characterized in that, in the radio frames of described LTE TDD system, the proportioning of sub-frame of uplink, special subframe and descending sub frame is 2:1:2;

Being set to of radio frames on described WiMAX and LTE TDD mixed carrier:

0th～9 subframes that each 10ms radio frames is set are followed successively by LTE TDD descending sub frame, LTE TDD special subframe, LTE TDD sub-frame of uplink, WiMAX ascending resource, WiMAX downlink resource, LTE TDD descending sub frame, LTE TDD special subframe, LTE TDD sub-frame of uplink, WiMAX ascending resource and WiMAX downlink resource; Or

0th～9 subframes that each 10ms radio frames is set are followed successively by LTE TDD descending sub frame, LTE TDD special subframe, LTE TDD sub-frame of uplink, WiMAX ascending resource, WiMAX downlink resource, LTE TDD descending sub frame, LTE TDD special subframe, WiMAX ascending resource, WiMAX ascending resource and WiMAX downlink resource; Or

0th～9 subframes that each 10ms radio frames is set are followed successively by LTE TDD descending sub frame, LTE TDD special subframe, WiMAX ascending resource, WiMAX ascending resource, WiMAX downlink resource, LTE TDD descending sub frame, LTE TDD special subframe, LTE TDD sub-frame of uplink, WiMAX ascending resource and WiMAX downlink resource.

5. method according to claim 4, is characterized in that, also comprises:

Except described WiMAX and LTE TDD mixed carrier, in system, also there is at least one independently LTE TDD carrier wave;

Independently on LTE TDD carrier wave, feeding back up response message corresponding to downlink data sending with the 0th subframe and the 1st subframe of described WiMAX and LTE TDD mixed carrier; Or, independently on LTE TDD carrier wave, feeding back up response message corresponding to downlink data sending with the 5th subframe and the 6th subframe of described WiMAX and LTE TDD mixed carrier.

6. according to the method described in claim 1-5 any one, it is characterized in that, in described WiMAX and LTE TDD mixed carrier, there is frame head biasing in the frame head of the frame head of WiMAX system wireless frame and LTE TDD system wireless frame.

7. method according to claim 6, it is characterized in that, when in the radio frames of described LTE TDD system, the proportioning of sub-frame of uplink, special subframe and descending sub frame is 2:1:2, the frame head of described WiMAX system wireless frame exists 1 millisecond in advance, postpones 4 milliseconds or postpone the frame head biasing of 9 milliseconds with respect to the frame head of described LTE TDD system wireless frame.

8. a method for transfer of data, it is applied to exist in wireless telecommunication system at least one worldwide interoperability for microwave access WiMAX and long-term advancing time division duplex LTE TDD mixed carrier, and at least one LTE TDD carrier wave, and the method comprises:

9. method according to claim 8, is characterized in that, comprising:

WiMAX subscriber terminal equipment receives downlink data or the signaling that network equipment sends by the downlink resource not used by described LTE TDD system in described WiMAX and LTE TDD mixed carrier;

10. method according to claim 9, is characterized in that, in the radio frames of described LTE TDD system, the proportioning of sub-frame of uplink, special subframe and descending sub frame is 2:1:2;

Being set to of radio frames on described WiMAX and LTE TDD mixed carrier: 0th～9 subframes of each 10ms radio frames are followed successively by LTE TDD descending sub frame, LTE TDD special subframe, WiMAX ascending resource, WiMAX ascending resource, WiMAX downlink resource, LTE TDD descending sub frame, LTE TDD special subframe, WiMAX ascending resource, WiMAX ascending resource and WiMAX downlink resource.

11. methods according to claim 10, is characterized in that, also comprise:

Up response message corresponding to downlink data that feedback sends with the 0th subframe and the 1st subframe of described WiMAX and LTE TDD mixed carrier on LTE TDD carrier wave, and up response message corresponding to the downlink data sending with the 5th subframe and the 6th subframe of described WiMAX and LTE TDD mixed carrier.

Method described in 12. according to Claim 8-11 any one, is characterized in that, in described WiMAX and LTE TDD mixed carrier, the frame head of the frame head of WiMAX system wireless frame and LTE TDD system wireless frame exists frame head biasing.

13. methods according to claim 12, it is characterized in that, when in the radio frames of described LTE TDD system, the proportioning of sub-frame of uplink, special subframe and descending sub frame is 2:1:2, the frame head of described WiMAX system wireless frame exists 1 millisecond in advance, postpones 4 milliseconds or postpone the frame head biasing of 9 milliseconds with respect to the frame head of described LTE TDD system wireless frame.

The method of 14. 1 kinds of transfer of data, is characterized in that, comprising:

15. methods according to claim 14, is characterized in that, in the radio frames of described LTE TDD system, the proportioning of sub-frame of uplink, special subframe and descending sub frame is 2:1:2;

Being set to of radio frames on described WiMAX and LTE TDD mixed carrier:

The method of 16. 1 kinds of transfer of data, is characterized in that, it is applied to exist at least one worldwide interoperability for microwave to access WiMAX and long-term advancing time division duplex LTE TDD mixed carrier in wireless telecommunication system, and at least one LTE TDD carrier wave, comprising:

17. methods according to claim 16, is characterized in that, in the radio frames of described LTE TDD system, the proportioning of sub-frame of uplink, special subframe and descending sub frame is 2:1:2;

18. 1 kinds of subscriber terminal equipments, is characterized in that, comprising:

19. subscriber terminal equipments according to claim 18, is characterized in that, also comprise:

Retransmission module, for retransmitting in subframe and send upstream data or signaling to network equipment at uplink hybrid automatic repeat request HARQ, wherein HARQ retransmits subframe for the data of described sub-frame of uplink carrying are retransmitted.

20. subscriber terminal equipments according to claim 18, is characterized in that, except described WiMAX and LTE TDD mixed carrier, also have at least one independently LTE TDD carrier wave in system;

Described sending module, also for independently feeding back up response message corresponding to downlink data sending with the 0th subframe and the 1st subframe of described WiMAX and LTE TDD mixed carrier on LTE TDD carrier wave; Or, independently on LTE TDD carrier wave, feeding back up response message corresponding to downlink data sending with the 5th subframe and the 6th subframe of described WiMAX and LTE TDD mixed carrier.

21. 1 kinds of subscriber terminal equipments, it is characterized in that, it is applied to exist at least one worldwide interoperability for microwave to access WiMAX and long-term advancing time division duplex LTE TDD mixed carrier in wireless telecommunication system, and at least one LTE TDD carrier wave, and this subscriber terminal equipment comprises:

22. subscriber terminal equipments according to claim 21, is characterized in that,

Described sending module, up response message corresponding to downlink data sending with the 0th subframe and the 1st subframe of described WiMAX and LTE TDD mixed carrier for feedback on LTE TDD carrier wave, and up response message corresponding to the downlink data sending with the 5th subframe and the 6th subframe of described WiMAX and LTE TDD mixed carrier.

23. 1 kinds of network equipments, is characterized in that, comprising:

24. network equipments according to claim 23, is characterized in that,

Described receiver module, also for receiving LTE TDD subscriber terminal equipment, at uplink hybrid automatic repeat request HARQ corresponding to the transfer of data with described sub-frame of uplink, retransmit upstream data or the signaling sending in subframe, wherein HARQ retransmits subframe for the data of described sub-frame of uplink carrying are retransmitted.

25. equipment according to claim 23, is characterized in that,

Described sending module, also sends downlink data or signaling for the downlink resource not used by described LTE TDD system by described WiMAX and LTE TDD mixed carrier to WiMAX subscriber terminal equipment;

Described receiver module, the upstream data or the signaling that also for receiving WiMAX subscriber terminal equipment, by described WiMAX and LTE TDD mixed carrier, by the ascending resource of described LTE TDD system use, are not sent.

26. equipment according to claim 24, is characterized in that, except described WiMAX and LTE TDD mixed carrier, also have at least one independently LTE TDD carrier wave in system;

Described receiver module, is independently feeding back up response message corresponding to downlink data sending with the 0th subframe and the 1st subframe of described WiMAX and LTE TDD mixed carrier on LTE TDD carrier wave for receiving LTE TDD ustomer premises access equipment; Or, receive LTE TDD ustomer premises access equipment and independently on LTE TDD carrier wave, feeding back up response message corresponding to downlink data sending with the 5th subframe and the 6th subframe of described WiMAX and LTE TDD mixed carrier.

27. 1 kinds of network equipments, it is characterized in that, it is applied to exist at least one worldwide interoperability for microwave to access WiMAX and long-term advancing time division duplex LTE TDD mixed carrier in wireless telecommunication system, and at least one LTE TDD carrier wave, and this network equipment comprises:

Sending module, sends downlink data or signaling for the LTE TDD descending sub frame by WiMAX and LTE TDD mixed carrier to LTE TDD subscriber terminal equipment, and wherein said LTE TDD descending sub frame at least comprises the 0th, 1,5 and 6 subframes of each radio frames; And send downlink data or signaling by the descending sub frame at least one LTE TDD carrier wave;

28. network equipments according to claim 27, is characterized in that,

Described sending module, also the downlink resource for not used by described LTE TDD system by WiMAX and LTE TDD mixed carrier, sends downlink data or signaling to WiMAX subscriber terminal equipment;

29. network equipments according to claim 27, is characterized in that,

Described receiver module, for receive up response message corresponding to the LTE TDD subscriber terminal equipment downlink data sending with the 0th subframe described WiMAX and LTE TDD mixed carrier and the 1st subframe that feed back on LTE TDD carrier wave, and up response message corresponding to the downlink data sending with the 5th subframe and the 6th subframe of described WiMAX and LTE TDD mixed carrier.