CN104054364A

CN104054364A - Data transmission method, apparatus, network device and UE

Info

Publication number: CN104054364A
Application number: CN201280031435.1A
Authority: CN
Inventors: 张雯; 李龠; 吕永霞
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2012-11-27
Filing date: 2012-11-27
Publication date: 2014-09-17
Anticipated expiration: 2032-11-27
Also published as: WO2014082195A1; CN109041249A; CN104054364B

Abstract

A data transmission method, an apparatus, a network device and user equipment (UE). The method comprises: a network device generates control information, wherein the control information binds a group of UE with resources therein, and the group of UE comprises at least two pieces of UE (101); transmitting the control information so that the group of UE performs data transmission through the resources in the control information (102). The control information can schedule a group of UE, thus saving a large number of control channel resources. Especially for scheduling MTC UE used for transmitting small data packets, a capability of scheduling a group of UE enables each downlink control channel (PDCCH) to schedule multiple physical uplink shared channel (PUSCH) resources of transmission data, which improves utilization of system frequency spectrum resources.

Description

Data transmission method, apparatus, network device and UE

Data transmission method, device, the network equipment and UE

The present invention relates to communication technical field, more particularly to data transmission method, device, the network equipment and user equipment for technical field

(User Equipment, UE).Background technology

Internet of Things（Machine to Machine, M2M) technology is to be connected article with internet by information sensing device, realizes the network of Weigh sensor and management.M2M is more huger than existing internet, can be widely applied to the every field such as intelligent grid, intelligent transportation, environmental protection, smart home.After Internet of Things and wireless communication technology are combined, Internet of Things type communication (Machine Type Communication in M2M, MTC) server can obtain the application data of each MTC UE in M2M by wireless communication technology, and these application datas are uniformly reported into control centre.MTC UE of the above-mentioned application data in various concrete applications, can include intelligent meter data recording terminal, automatic vending machine terminal, point-of-sale terminal（Point of Sale, P0S) machine etc., these application datas are generally reported to control centre using random reported mode or periodicity reporting schemes.

It can be seen from MTC UE report the characteristic of application data in M2M, in a M2M, comprising the MTC UE with same performance there is identical service feature, and the data volume of packet that each MTC UE are reported to MTC server every time is smaller.By taking intelligent meter data recording business as an example, power consumption situation periodically may be reported to MTC server comprising 30000 performances identical MTC UE, these MTC UE in a cell, and the data volume reported every time is between 50 to 2000 bytes.

Inventor has found that network side is in the MTC UE of a large amount of upload small data packets of scheduling, it is necessary to configure Physical Downlink Control Channel for each MTC UE in the research process to prior art（Physical Downl ink Control Channel, PDCCH) resource, PDCCH is used to carry control information, indicate that MTC UE upload Physical Uplink Shared Channel (the Physical Upl ink Shared Channel taken during data, PUSCH) resource, when the MTC UE quantity included in a cell is more, then need to configure substantial amounts of PDCCH resource to dispatch these MTC UE, because the data volume that each MTC UE upload packet is smaller, so that the PUSCH of transmission data resource is difficult to be occupied full, and because PDCCH resource is almost used up when dispatching these MTC UE, therefore also it is difficult to dispatch common UE and data is uploaded by the PUSCH not taken, so as to cause system spectral resources utilization rate relatively low. The content of the invention

The embodiments of the invention provide data transmission method, device, the network equipment and UE, to solve during the MTC UE of scheduled transmission small data packets in the prior art, the problem of availability of frequency spectrum is relatively low.

In order to solve the above-mentioned technical problem, the embodiment of the invention discloses following technical scheme：

First aspect includes there is provided a kind of data transmission method, methods described：

The network equipment, which is generated, is bound one group of UE with resource in control information, the control information, and one group of UE includes at least two UE;

The control information is transmitted, so that one group of UE is carried out data transmission by the resource in the control information.With reference in a first aspect, in the first possible implementation, using following at least one modes, one group of UE is bound with resource：

One group of UE is bound with time-domain resource；

One group of UE is bound with frequency domain resource；

One group of UE is bound with code resource.

With reference in a first aspect, or the first possible implementation, it is described to be bound one group of UE and resource specially in second of possible implementation：

One group of UE is bound by bitmap bitmap information and resource, each bit in the bitmap information indicates whether a UE is scheduled, and be the resource of scheduled UE distribution.

With reference in a first aspect, either the first possible implementation or second of possible implementation, in the third possible implementation, before the network equipment generation control information, in addition to：The group mark of one group of UE, and each UE and the corresponding relation of resource in one group of UE are obtained, described group of mark is used to scramble the CRC CRC of the control information；

It is described to be bound one group of UE and resource specially：One group of UE is bound with resource according to each UE in one group of UE and the corresponding relation of resource.

Second aspect includes there is provided another data transmission method, methods described：

UE receives control information, and the control information is bound one group of UE with resource, and one group of UE includes at least two UE;

When the UE determines to belong to one group of UE, according to being that the resource of UE configuration carries out data transmission in the control information.

With reference to second aspect, in the first possible implementation, using following at least one modes, one group of UE is bound with resource：

One group of UE is bound with time-domain resource； One group of UE is bound with frequency domain resource；

One group of UE is bound with code resource.

With reference to second aspect, or the first possible implementation, it is described to be bound one group of UE and resource specially in second of possible implementation：One group of UE is bound by bitmap bitmap information and resource, each bit in the bitmap information indicates whether a UE is scheduled, and be the resource of scheduled one UE distribution.

With reference to second of possible implementation, in the third possible implementation, methods described also includes：The UE obtains the group mark of one group of UE belonging to the UE, and the UE and the corresponding relation of resource；

The control information is specially：The control information scrambled by the group mark of one group of UE belonging to the UE;The UE determines that belonging to one group of UE includes：The UE is descrambled after the control information by the group mark of one group of UE belonging to the UE, it is determined that belonging to one group of UE.

It is described according to being that the resource of UE configuration carries out data transmission including in the control information in the 4th kind of possible implementation with reference to the third possible implementation：

The UE obtains bit corresponding with the UE in the bitmap information according to the UE with the corresponding relation of resource；

When bit corresponding with the UE indicates that the UE is scheduled, the resource that the UE is indicated according to the bit carries out data transmission.

The third aspect includes there is provided a kind of data transmission device, described device：

Generation unit, is bound one group of UE with resource for generating in control information, the control information, one group of UE includes at least two UE;

Transmission unit, the control information for transmitting the generation unit generation, so that one group of UE is carried out data transmission by the resource in the control information.

With reference to the third aspect, in the first possible implementation, the generation unit, specifically in the control information of generation, using following at least one modes, one group of UE is bound with resource：One group of UE is bound with time-domain resource；One group of UE is bound with frequency domain resource；One group of UE is bound with code resource.

With reference to the third aspect, or the first possible implementation, in second of possible implementation, the generation unit, specifically in the control information of generation, one group of UE is bound by bitmap bitmap information and resource, each bit in the bitmap information indicates whether a UE is scheduled, and be the resource of scheduled UE distribution.

With reference to the third aspect, either the first possible implementation or second of possible implementation, in the third possible implementation, the network equipment also includes： Acquiring unit, for before generation unit generation control information, the group mark of one group of UE, and each UE and the corresponding relation of resource in one group of UE are obtained, described group of mark is used to scramble the CRC CRC of the control information；

The generation unit, specifically for when generating control information, being bound one group of UE with resource according to each UE in one group of UE and the corresponding relation of resource.

Fourth aspect includes there is provided a kind of network equipment, the network equipment：

Processor, is bound one group of UE with resource for generating in control information, the control information, one group of UE includes at least two UE;

Radio receiving-transmitting unit, the control information for transmitting the processor generation, so that one group of UE is carried out data transmission by the resource in the control information.

With reference to fourth aspect, in the first possible implementation, the processor, specifically in the control information of generation, using following at least one modes, one group of UE is bound with resource：One group of UE is bound with time-domain resource；One group of UE is bound with frequency domain resource；One group of UE is bound with code resource.

With reference to fourth aspect, or the first possible implementation, in second of possible implementation, the processor, specifically in the control information of generation, one group of UE is bound by bitmap bitmap information and resource, each bit in the bitmap information indicates whether a UE is scheduled, and be the resource of scheduled UE distribution.

With reference to fourth aspect, or the first possible implementation, or second of possible implementation, in the third possible implementation, the processor, is additionally operable to before generation control information, obtains the group mark of one group of UE, and each UE and the corresponding relation of resource in one group of UE, described group of mark be used to scramble the CRC CRC of the control information.

5th aspect is there is provided a kind of data transmission device, and described device includes：

Receiving unit, for receiving control information, the control information is bound one group of UE with resource, and one group of UE includes at least two UE;

Determining unit, for determining whether the UE belongs to the one group of UE included in the control information that the receiving unit is received;

Transmission unit, for when the determining unit determines that the UE belongs to one group of UE, according to being that the resources of the UE configurations carries out data transmission in the control information.

With reference to the 5th aspect, in the first possible implementation, in the control information that the receiving unit is received, using following at least one modes, one group of UE is bound with resource：One group of UE is bound with time-domain resource；One group of UE is bound with frequency domain resource；One group of UE is bound with code resource. With reference to the 5th aspect, or the first possible implementation, in second of possible implementation, in the control information that the receiving unit is received, one group of UE is bound by bitmap bitmap information and resource, each bit in the bitmap information indicates whether a UE is scheduled, and is the resource of scheduled one UE distribution.

With reference to second of possible implementation, in the third possible implementation, the UE also includes：Acquiring unit, the group for obtaining one group of UE belonging to the UE is identified, and the UE and the corresponding relation of resource；

The control information that the control information that the receiving unit is received is scrambled specifically by the group mark of one group of UE belonging to the UE；

The determining unit, specifically for being descrambled by the group mark of one group of UE belonging to the UE after the control information that the receiving unit is received, it is determined that belonging to one group of UE.

With reference to the third possible implementation, in the 4th kind of possible implementation, the transmission unit includes：Subelement is obtained, for obtaining bit corresponding with the UE in the bitmap information that the receiving unit is received with the corresponding relation of resource according to the UE；

Transmission subelement, for when the bit that the acquisition subelement is obtained indicates that the UE is scheduled, the resource indicated according to the bit to carry out data transmission.

6th aspect is there is provided a kind of UE, and the UE includes：

Radio receiving-transmitting unit, for receiving control information, the control information is bound one group of UE with resource, and one group of UE includes at least two UE;

Processor, for determining whether the UE belongs to the one group of UE included in the control information that the radio receiving-transmitting unit is received;

The radio receiving-transmitting unit, is additionally operable to when the processor determines that the UE belongs to one group of UE, according to being that the resource of UE configuration carries out data transmission in the control information.

With reference to the 6th aspect, in the first possible implementation, in the control information that receives of the radio receiving-transmitting unit, using following at least one modes, one group of UE is bound with resource：One group of UE is bound with time-domain resource；One group of UE is bound with frequency domain resource；One group of UE is bound with code resource.

With reference to the 6th aspect, or the first possible implementation, in second of possible implementation, in the control information that the radio receiving-transmitting unit is received, one group of UE is bound by bitmap bitmap information and resource, each bit in the bitmap information indicates whether a UE is scheduled, and is the resource of scheduled one UE distribution.

With reference to second of possible implementation, in the third possible implementation, the processor is additionally operable to Obtain the group mark of one group of UE belonging to the UE, and the UE and the corresponding relation of resource；

The control information that the radio receiving-transmitting unit is received, the control information scrambled specifically by the group mark of one group of UE belonging to the UE；

The processor, specifically for being descrambled by the group mark of one group of UE belonging to the UE after the control information that the radio receiving-transmitting unit is received, it is determined that belonging to one group of UE.

In the embodiment of the present invention, the network equipment, which is generated, is bound one group of UE comprising at least two UE with resource in control information, the control information, transmits the control information, one group of UE is scheduled, so that one group of UE is carried out data transmission by the resource in the control information.Control information in the embodiment of the present invention can be scheduled to one group of UE, for a PDCCH, it can be used for dispatching one group of UE, compared with an existing PDCCH is only capable of one UE of scheduling, a large amount of PDCCH resources are saved, for the MTC UE especially for scheduling for transmitting small data packets, due to one group of UE can be dispatched, for example, each PDCCH can dispatch the PUSCH resources of multiple transmission data, the utilization rate of system spectral resources is which thereby enhanced.Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the required accompanying drawing used in embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is one embodiment flow chart of data transmission method of the present invention；

Fig. 2 is another embodiment flow chart of data transmission method of the present invention；

Fig. 3 A are another embodiment flow chart of data transmission method of the present invention；

Fig. 3 B are the time-domain resource configuration schematic diagram in Fig. 3 A for one group of UE progress uplink of scheduling；Fig. 4 A are another embodiment flow chart of data transmission method of the present invention；

Fig. 4 B are the time-domain resource configuration schematic diagram in Fig. 4 A for one group of UE progress uplink of scheduling；Fig. 5 A are another embodiment flow chart of data transmission method of the present invention；

Fig. 5 B are the running time-frequency resource configuration schematic diagram in Fig. 5 A for one group of UE progress uplink of scheduling；Fig. 6 is one embodiment block diagram of data transmission device of the present invention；

Fig. 7 is another embodiment block diagram of data transmission device of the present invention；

Fig. 8 is one embodiment block diagram of inventive network equipment；

Fig. 9 is another embodiment block diagram of data transmission device of the present invention；

Figure 10 is another embodiment block diagram of data transmission device of the present invention； Figure 11 is UE of the present invention one embodiment block diagram.Embodiment

Following examples of the present invention provide a kind of data transmission method, device, the network equipment and UE.

In order that those skilled in the art more fully understand the technical scheme in the embodiment of the present invention, and enable the above-mentioned purpose of the embodiment of the present invention, feature and advantage more obvious understandable, technical scheme in the embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.

It is one embodiment flow chart of data transmission method of the present invention referring to Fig. 1, the embodiment describes the process being scheduled to UE from network equipment side：

Step 101:The network equipment, which is generated, is bound one group of UE with resource in control information, the control information, and one group of UE includes at least two UE.

In the present embodiment, the network equipment can be base station, or mobile management entity（Mobi le Management Entity, MME) etc..Resource in the present embodiment refers mainly to the scheduling resource for dispatching one group of UE.

In the present embodiment, one group of UE can be scheduled by each control information, be bound one group of UE with resource in the control information.Optionally, in the control information, according to the difference of resource type, one group of UE can be bound with resource using following at least one mode：One group of UE is bound with time-domain resource；One group of UE is bound with frequency domain resource；One group of UE is bound with code resource.Wherein, when for LTE communication system, being bound when by one group of UE with time-domain resource, and/or one group of UE and frequency domain resource being bound, PDCCH resource can be saved.

Optionally, the network equipment can obtain the group mark of each group of UE in network, and each UE and the corresponding relation of resource in each group of UE, and generate the control information according to the corresponding relation.Wherein, each group of UE group mark can be used for scrambling the control information of one group of UE.

Optionally, the resource no matter bound in the control information is time-domain resource, frequency domain resource, code resource, or running time-frequency resource etc., one group of UE can be passed through into bitmap (bitmaps）Information is bound with resource, and each bit wherein in bitmap information indicates whether a UE is scheduled, and is the resource of scheduled UE distribution.

In the present embodiment, optionally, the control information can be the control information that transmitting uplink data is carried out for dispatching one group of UE；Or or carry out the control information of downlink data reception for dispatching one group of UE.

Step 102:The control information is transmitted, so that one group of UE is carried out data transmission by the resource in the control information.

As seen from the above-described embodiment, the control information in the embodiment of the present invention can be scheduled to one group of UE, for a PDCCH, can be used for dispatching one group of UE, compared with an existing PDCCH is only capable of one UE of scheduling, Save a large amount of PDCCH resources, for MTC UE especially for scheduling for transmitting small data packets, due to one group of UE can be dispatched, for example, each PDCCH can dispatch the PUSCH resources of multiple transmission data, which thereby enhance the utilization rate of system spectral resources.It is another embodiment flow chart of data transmission method of the present invention referring to Fig. 2, the embodiment describes the process being scheduled to UE from UE sides：

Step 201:UE, which is received, is bound one group of UE with resource in control information, the control information, and one group of UE includes at least two UE.

Optionally, UE can obtain the group mark of one group of UE belonging to the UE, and the UE and the corresponding relation of resource.Wherein, UE can be descrambled in the control information after receiving scrambling by the group mark of one group of UE belonging to the UE to control information；Also, the resource of UE configurations is retrieved as from control information by UE and the corresponding relation of resource.

Optionally, the resource no matter bound in control information is time-domain resource, frequency domain resource, code resource, or running time-frequency resource etc., one group of UE can be bound by bitmap information and resource, each bit wherein in bitmap information indicates whether a UE is scheduled, and be the resource of scheduled UE distribution.

Step 202:When the UE determines to belong to one group of UE, according to being that the resource of UE configuration carries out data transmission in the control information.

Optionally, UE can be according to the resource progress transmitting uplink data in the control information being the UE configurations；Or, UE can also be according to the resource progress downlink data reception in the control information being the UE configurations.

As seen from the above-described embodiment, control information in the embodiment of the present invention can be scheduled to one group of UE, for a PDCCH, it can be used for dispatching one group of UE, compared with an existing PDCCH is only capable of one UE of scheduling, save a large amount of PDCCH resources, for MTC UE especially for scheduling for transmitting small data packets, due to one group of UE can be dispatched, for example, each PDCCH can dispatch the PUSCH resources of multiple transmission data, which thereby enhance the utilization rate of system spectral resources. The embodiment of data transmission method of the present invention is described in detail with reference to several application examples.

It is another embodiment flow chart of data transmission method of the present invention referring to Fig. 3 A, this example show the process that one group of UE is dispatched by time-domain resource：

Step 301:The network equipment obtains the group mark of each group of UE in network, and UE and bitmap corresponding relation in each group of UE, the group mark of one group of UE belonging to each UE acquisitions UE, and the UE and bitmap corresponding relation.

In the present embodiment, the network equipment can be base station（ENodeB, eNB), or MME etc..Wherein, group mark can be group-Radio Network Temporary Identifier of eNB distribution（Group-Radio Network Temporary Identity, Group-RNTI) or one of UE in a fixed Group-RNTI or one groups of UE Cell Radio Network Temporary Identifier/Identity, Cell-RNTI（Cel lRadioNetworkTemporaryldentifier , C_RNTI ).UE and bitmap corresponding relation can be that the network equipment notifies UE, such as notify UE numberings of the UE in affiliated group to UE；It can also be indicated using certain rule, such as one UE C-RNTI corresponds to first bit in bitmap to being 0 after 8 modulus, then, if being 1 after modulus, correspond to the 2nd bit, etc. in bitmap.

In the present embodiment, so that the network equipment is notified of UE numberings of the UE in affiliated group to UE as an example, assuming that including eight UE in each group of UE, by taking one group of UE wherein to be scheduled as an example, assuming that the group of one group of UE is designated the first Group-RNTI, the numbering of eight UE in one group of UE is followed successively by UE0, UE1, UE2, UE3, UE4, UE5, UE6, UE7.

Step 302:It is to be bound one group of UE by bitmap information and time-domain resource in one group of UE generation control information, the control information when the network equipment will dispatch one group of UE.

In the present embodiment, control information can be the Downlink Control Information that transmitting uplink data is carried out for dispatching one group of UE；Or or carry out the Downlink Control Information of downlink data reception for dispatching one group of UE.Wherein, the control information can be specially Downlink Control Information（Downl ink Control Information, DCI ).

Exemplified by dispatching one group of UE and carry out transmitting uplink data, in the present embodiment, bitmap information can be carried in the DCI of generation, the bitmap information is used to indicate the UE in the one group of UE to be dispatched, and for the time-domain resource of the UE to be dispatched distribution, the bit number that usual bitmap packets contain is identical with the UE quantity included in one group of UE.It is to be used to dispatch the time-domain resource configuration schematic diagram that one group of UE carries out uplink in the present embodiment referring to Fig. 3 B；In Fig. 3 B, the bitmap information included in the DCI is " 10111011 ", eight UE of serial number in one group of UE of each bit order correspondence in above-mentioned bitmap information, i.e. the corresponding bits of UE0 are " 1 ", and the corresponding bits of UE1 are " 0 ", the corresponding bits of UE2 are " 1 ", the corresponding bits of UE3 are " 1 ", and the corresponding bits of UE4 are " 1 ", and the corresponding bits of UE5 are " 0 ", the corresponding bits of UE6 are " 1 ", and the corresponding bits of UE7 are " 1 ".This In embodiment, assuming that when the bit in bitmap information is " 1 ", represent the corresponding UE of scheduling, when bit in bitmap information is " 0 ", expression need not be dispatched in corresponding UE, such as Fig. 3 B, the corresponding bits of UE0 are " 1 ", expression needs to dispatch UE0, and the corresponding bits of UEl are " 0 ", and expression need not dispatch UE1.

Each bit in above-mentioned bitmap information also further illustrates the corresponding time-domain resources of the UE to be dispatched except indicating whether foretelling at UE sunset corresponding to scheduling.As shown in Figure 3 B, assuming that DCI is sent in n-th subframe, then when carrying out uplink scheduling, the UE of serial number can generally be dispatched since the N+4 subframe in one group of UE, that is the corresponding scheduling subframes of UE0 are " N+4 ", the corresponding scheduling subframes of UEl are " N+5 ", the corresponding scheduling subframes of UE2 are " N+6 ", the corresponding scheduling subframes of UE3 are " N+7 ", the corresponding scheduling subframes of UE4 are " N+8 ", the corresponding scheduling subframes of UE5 are " N+9 ", the corresponding scheduling subframes of UE6 are " N+10 ", the corresponding scheduling subframes of UE7 are " N+l l ".As the corresponding bits of UE0 in Fig. 3 B, are described previously for " 1 ", expression needs to dispatch UE0, and the corresponding scheduling subframes of UE0 are " N+4 ", then UEO is dispatched since the N+4 subframe.

In addition, in the present embodiment, when DCI is used to dispatch one group of UE progress transmitting uplink data, in the DCI in addition to comprising the bitmap information for dispatching one group of UE, at least one following information can also be included：

The configuration information of frequency domain resource：In the present embodiment, during due to one group of UE of scheduling, in time domain, the corresponding different subframes of each UE in one group of UE, therefore on frequency domain, each UE that can be configured in one group of UE is transmitted in identical frequency domain resource, and the frequency domain resource can be Physical Resource Block（Physical Resource Block, PRB).The configuration information of the frequency domain resource can be multiplexed existing frequency domain resource distribution indicating means, the original position of frequency domain resource distribution can also be only informed in DCI to save transmission bit, the original position for such as distributing to ■ PRB is the 13rd PRB, and distribute two PRB for each UE, 5 bit are then needed to indicate PRB original position, and the number for being the PRB of each UE distribution can be configured by high-level signaling or default mode, or the PRB numbers that each UE takes can also be indicated in DCI, such as represented to take 2 PRB with bit " 1 ", represented to take 3 PRB with bit " 0 ".It is above-mentioned only illustrative to the configuration mode of frequency domain resource, it is not used in and the DCI in the embodiment of the present invention is limited；

Modulation coding mode and redundancy version information：Existing modulation coding mode can be multiplexed modulation coding mode and redundancy versions are indicated in DCI；Or, the modulation coding mode and redundancy versions of a UE to be dispatched in one group of UE can also be represented using several bit, and other UE modulation coding mode and redundancy versions can be represented using the skew of modulation coding mode and redundancy versions to said one UE to be dispatched；It should be noted that when modulation coding mode and redundancy version information are configured by way of high-level signaling is configured or pre-set, then the modulation coding mode and redundancy version information can be omitted in DCI, to save DCI bit;

New data transmission configured information（New data indicator ) :The new data transmission configured information is used to indicate that the UE in one group of UE will dispatch the data newly transmitted, or Schedule retransmission data, the new data transmission configured information It can be indicated by lbit information.It should be noted that one group of UE of scheduling DCI is served only for dispatching the data newly transmitted, then the information can be omitted；

PUSCH transmit power control require information（TPC command for PUSCH):The information can be multiplexed mode of the prior art, be indicated in DCI；It should be noted that when TPC command for PUSCH are configured by way of high-level signaling is configured or pre-set, then the TPC command for PUSCH can be omitted in DCI, to save DCI bit;

The circular shift information of demodulated reference signal and orthogonal covering codes index（Cyclic Shift for DMRS and OCC index):The information can be multiplexed mode of the prior art, be indicated in DCI；It should be noted that, when Cyclic Shift for DMRS and OCC index are configured by way of high-level signaling is configured or pre-set, the Cyclic Shift for DMRS and OCC index can be then omitted in DCI, to save DCI bit.

It is similar with the DCI that the one group of UE of scheduling shown in Fig. 3 B carries out transmitting uplink data, when dispatching one group of UE progress downlink data reception, the DCI shown in the present embodiment can also be used to carry out descending scheduling, it is with Fig. 3 B differences, when carrying out descending scheduling, the subframe of first UE distribution in the one group of UE dispatched for DCI can be since the n-th subframe for sending the DCI, i.e. the corresponding scheduling subframes of UE0 are " N ".

In addition, can also be including information as the info class with being previously used for including in the DCI of one group of UE progress transmitting uplink data of scheduling in the DCI, wherein difference is, one group of UE is dispatched to carry out not including TPC command for PUSCH and Cyclic Shift for DMRS and OCC index in the DCI of downlink data reception, but the control require information of the transmit power comprising PUCCH（TPC command for PUCCH), and can further include HARQ and enter number of passes (HARQ process number).

Wherein, the TPC command for PUCCH TPC command for PUSCH set when can be similar to dispatching uplink data.HARQ process number setting can be in the following way：Can be less than by setting UE HARQ to enter number of passes by 8, such as it is 4 that HARQ can be set, which to enter number of passes, then scheduled UE HARQ processes are represented using 2 bit；Or the HARQ processes of a scheduled UE can also be represented with 2 to 3 bit, other scheduled UE HARQ processes can enter number of passes to the HARQ of a UE and carry out into line displacement；If one group of UE can be omitted only with a process, HARQ process number, to save DCI bit.

Step 303:The network equipment is scrambled by the group mark of one group of UE to the control information of generation.In the present embodiment, after generation DCI, the first Group-RNTI can be identified by the group of one group of UE and DCI is scrambled.Wherein, the CRC referred mainly to DCI is scrambled to DCI（Cyclic Redundancy Check, CRC) scrambled.

Step 304:The network equipment transmits the control information after scrambling by PDCCH. Step 305:UE is received after control information, the control information is descrambled by the group mark of one group of UE belonging to the UE, it is determined that belonging to one group of UE.

When the network equipment transmits the control information after scrambling by PDCCH, all UE can receive the control information in network, therefore each UE can descramble the control information according to affiliated one group of UE group mark, if descrambled successfully, it can determine that UE belongs to the one group of UE to be dispatched.

Step 306:UE obtains bit corresponding with the UE in the bitmap information according to the UE with the corresponding relation of resource.

Still with reference to shown in Fig. 3 B, assuming that the UE for receiving control information is ■, after then ■ is descrambled successfully by the first Group-RNTI to the DCI received, obtain bitmap information " 10111011 ", UE0 is first bit " 1 " according to numbering " UE0 " in the group of itself to obtain the corresponding bit in bitmap information, it can thus be appreciated that UE0 is scheduled, and corresponding scheduling subframe is subframe N+4;Assuming that the UE for receiving control information is UE1, after then UE1 is descrambled successfully by the first Group-RNTI to the DCI received, obtain bitmap information " 10111011 ", UE1 is second bit " 0 " according to numbering " UE1 " in the group of itself to obtain the corresponding bit in bitmap information, it can thus be appreciated that UE1 is not scheduled.

Step 307:When bit corresponding with the UE indicates that the UE is scheduled, the time-domain resource that the UE is indicated according to the bit carries out data transmission.

With reference to Fig. 3 B, still by taking UEO as an example, then UE0 carries out transmitting uplink data according to the DCI received in the N+4 subframe.

As seen from the above-described embodiment, because control information can be scheduled to one group of UE in the present embodiment, i.e. each PDCCH can be used for dispatching one group of UE, compared with existing PDCCH is only capable of one UE of scheduling, save a large amount of PDCCH resources, for MTC UE especially for scheduling for transmitting small data packets, because each PDCCH can dispatch one group of UE, equivalent to the PUSCH resources that each PDCCH can dispatch multiple transmission data, the utilization rate of system spectral resources is which thereby enhanced.It is another embodiment flow chart of data transmission method of the present invention, this example show the process by one group of UE of frequency domain resource scheduling referring to Fig. 4：

Step 401:The network equipment obtains the group mark of each group of UE in network, and UE and bitmap corresponding relation in each group of UE, the group mark of one group of UE belonging to each UE acquisitions UE, and the UE and bitmap corresponding relation.

In the present embodiment, the network equipment can be base station（), or MME etc. eNB.Wherein, group mark can be eNB distribution group-Radio Network Temporary Identifier (Group-Radio Network Temporary Identity, Group-RNTI), can also be a fixed Group-RNTI, it can also be the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (Cel l Radi oNe tworkTemporary Identifier, C- RNTI) of one of UE in one group of UE.UE and bitmap corresponding relation can be that the network equipment notifies UE, such as notify UE numberings of the UE in affiliated group to UE；It can also be indicated using certain rule, such as one UE C-RNTI corresponds to first bit in bitmap to being 0 after 8 modulus, then, if being 1 after modulus, correspond to the 2nd bit, etc. in bitmap.

In the present embodiment, it is still assumed that including eight UE in each group of UE, by taking one group of UE wherein to be scheduled as an example, assuming that the group of one group of UE is designated the first Group-RNTI, the numbering of eight UE in one group of UE is followed successively by UE0, UE1, UE2, UE3, UE4, UE5, UE6, UE7.

Step 402:It is to be bound one group of UE by bitmap information and frequency domain resource in one group of UE generation control information, the control information when the network equipment will dispatch one group of UE.

In the present embodiment, control information can be the Downlink Control Information that transmitting uplink data is carried out for dispatching one group of UE；Or or carry out the Downlink Control Information of downlink data reception for dispatching one group of UE.Wherein, the control information can be specially DCI.

Still exemplified by dispatching one group of UE and carry out transmitting uplink data, in the present embodiment, bitmap information can be carried in the DCI of generation, the bitmap information is used to indicate the UE in the one group of UE to be dispatched, and for the frequency domain resource of the UE to be dispatched distribution, the bit number that usual bitmap packets contain is identical with the UE quantity included in one group of UE.It is to be used to dispatch the frequency domain resource configuration schematic diagram that one group of UE carries out uplink in the present embodiment referring to Fig. 4 B；

In Fig. 4 B, the bitmap information included in the DCI is " 10111011 ", eight UE of serial number in one group of UE of each bit order correspondence in above-mentioned bitmap information, i.e. the corresponding bits of UE0 are " 1 ", and the corresponding bits of UE1 are " 0 ", the corresponding bits of UE2 are " 1 ", the corresponding bits of UE3 are " 1 ", and the corresponding bits of UE4 are " 1 ", and the corresponding bits of UE5 are " 0 ", the corresponding bits of UE6 are " 1 ", and the corresponding bits of UE7 are " 1 ".In the present embodiment, assuming that when the bit in bitmap information is " 1 ", represent the corresponding UE of scheduling, when bit in bitmap information is " 0 ", expression need not be dispatched in corresponding UE, such as Fig. 4 B, the corresponding bits of UE0 are " 1 ", expression needs to dispatch UE0, and the corresponding bits of UE1 are " 0 ", and expression need not dispatch UE1.

Each bit in above-mentioned bitmap information also further illustrates the corresponding frequency domain resources of the UE to be dispatched except indicating whether foretelling at UE sunset corresponding to scheduling.In the present embodiment, assuming that one group of UE is scheduled in same time-domain resource, for example, when the subframe for sending DCI is n-th subframe, then one group of UE is dispatched in the N+4 subframe, i.e. the subframe shown in Fig. 4 B is the N+4 subframe.As shown in Figure 4 B, when carrying out uplink scheduling, it is assumed that the UE that each UE takes serial number in two PRB, and one group of UE is dispatched since the 13rd PRB, Then the corresponding scheduling PRB of UEO are PRB 13 and PRB14, the corresponding scheduling PRB of UE1 are PRB 15 and PRB16, the corresponding scheduling PRB of UE2 are PRB17 and PRB18, the corresponding scheduling PRB of UE3 are PRB19 and PRB20, the corresponding scheduling PRB of UE4 are PRB21 and PRB22, the corresponding scheduling PRB of UE5 are PRB23 and the corresponding scheduling PRB of PRB24, UE6 is PRB25 and the corresponding scheduling PRB of PRB26, UE7 is PRB27 and PRB28.As in Fig. 4 B, the corresponding bits of UE0 are described previously for " 1 ", expression needs to dispatch UE0, and the corresponding scheduling PRB of UEO are to dispatch UE0 on PRB13 and PRB14, the i.e. PRB of the 13rd in " N+4 " individual subframe PRB and the 14th.

The configuration information of frequency domain resource：In the present embodiment, during due to one group of UE of scheduling, each UE in one group of UE is dispatched on the different PRB of same subframe, it is therefore desirable to which configuring is used for the original position for dispatching UE PRB in a subframe, in the present embodiment, UE0 PRB original position is as distributed to.The configuration of the original position of the PRB can be multiplexed existing frequency domain resource distribution indicating means, the original position of frequency domain resource distribution can also be only informed in DCI to save transmission bit, the original position for such as distributing to UEO PRB is the 13rd PRB, and distribute two PRB for each UE, 5 bit are then needed to indicate PRB original position, and the number for being the PRB of each UE distribution can be configured by high-level signaling or default mode, or the PRB numbers that each UE takes can also be indicated in DCI, such as represented to take 2 PRB with bit " 1 ", represented to take 3 PRB with bit " 0 ".In addition, when the PRB distributed between each UE in one group of UE is discontinuous, the information for the PRB being spaced between adjacent UE can be further included in DCI.It is above-mentioned only illustrative to the configuration mode of frequency domain resource, it is not used in and the DCI in the embodiment of the present invention is limited；

New data indicator:The new data transmission configured information is used to indicate that the UE in one group of UE will dispatch the data newly transmitted, or Schedule retransmission data, the new data transmission configured information can be indicated by lbit information.It should be noted that one group of UE of scheduling DCI is served only for dispatching the data newly transmitted, then the information can be omitted；

TPC command for PUSCH:The information can be multiplexed mode of the prior art, be indicated in DCI；It should be noted that when TPC command for PUSCH are by high-level signaling configuration or the side pre-set When formula is configured, then the TPC command for PUSCH can be omitted in DCI, to save DCI bit;

Cyclic Shift for DMRS and OCC index:The information can be multiplexed mode of the prior art, be indicated in DCI；It should be noted that, when Cyclic Shift for DMRS and OCC index are configured by way of high-level signaling is configured or pre-set, the Cyclic Shift for DMRS and OCC index can be then omitted in DCI, to save DCI bit.

In addition, when the DCI carries out the DCI of downlink data reception for one group of UE of scheduling, can also be including information as the info class with being previously used for including in the DCI of one group of UE progress transmitting uplink data of scheduling in the DCI, wherein difference is, one group of UE is dispatched to carry out not including TPC command for PUSCH and Cyclic Shift for DMRS and OCC index in the DCI of downlink data reception, but the control require information of the transmit power comprising PUCCH（TPC command for PUCCH), and can further include HARQ process number.

Wherein, the TPC command for PUCCH TPC command for PUSCH set when can be similar to dispatching uplink data.HARQ process number setting can be in the following way：Can be less than by setting UE HARQ to enter number of passes by 8, such as it is 4 that HARQ can be set, which to enter number of passes, then the HARQ for representing scheduled UE using 2 bit enters number of passes；Or can also represent that the HARQ of a scheduled UE enters number of passes with 2 to 3 bit, other scheduled UE HARQ processes can enter number of passes to the HARQ of a UE and carry out into line displacement；If one group of UE can be omitted only with a process, HARQ process number, to save DCI bit.

Step 403:The network equipment is scrambled by the group mark of one group of UE to the control information of generation.In the present embodiment, after generation DCI, the first Group-RNTI can be identified by the group of one group of UE and DCI is scrambled.Wherein, DCI scramblings are referred mainly to scramble DCI CRC.

Step 404:The network equipment transmits the control information after scrambling by PDCCH.

Step 405:UE is received after control information, the control information is descrambled by the group mark of one group of UE belonging to the UE, it is determined that belonging to one group of UE.

Step 406:UE obtains bit corresponding with the UE in the bitmap information according to the UE with the corresponding relation of resource.

Still with reference to shown in Fig. 4 B, assuming that the UE for receiving control information is ■, after then UE0 is descrambled successfully by the first Group-RNTI to the DCI received, obtain bitmap information " 10111011 ", UE0 is first bit " 1 " according to numbering " UE0 " in the group of itself to obtain the corresponding bit in bitmap information, it can thus be appreciated that UE0 is scheduled, and corresponding scheduling PRB is PRB13 and PRB14;Assuming that the UE for receiving control information is UE1, After then UEl is descrambled successfully by the first Group-RNTI to the DCI received, obtain bitmap information " 10111011 ", UE1 is second bit " 0 " according to numbering " UE1 " in the group of itself to obtain the corresponding bit in bitmap information, it can thus be appreciated that UE1 is not scheduled.

Step 407:When bit corresponding with the UE indicates that the UE is scheduled, the frequency domain resource that the UE is indicated according to the bit carries out data transmission.

With reference to Fig. 4 B, still by taking UE0 as an example, then UE0 carries out transmitting uplink data according to the DCI received on the PRB13 and PRB14 of the N+4 subframe.

As seen from the above-described embodiment, because control information can be scheduled to one group of UE in the present embodiment, i.e. each PDCCH can be used for dispatching one group of UE, compared with existing PDCCH is only capable of one UE of scheduling, save a large amount of PDCCH resources, for MTC UE especially for scheduling for transmitting small data packets, because each PDCCH can dispatch one group of UE, equivalent to the PUSCH resources that each PDCCH can dispatch multiple transmission data, the utilization rate of system spectral resources is which thereby enhanced.It is another embodiment flow chart of data transmission method of the present invention referring to Fig. 5, this example show the process that one group of UE is dispatched by running time-frequency resource：

Step 501:The network equipment obtains the group mark of each group of UE in network, and UE and bitmap corresponding relation in each group of UE, the group mark of one group of UE belonging to each UE acquisitions UE, and the UE and bitmap corresponding relation.

In the present embodiment, the network equipment can be base station（), or MME etc. eNB.Wherein, group mark can be group-Radio Network Temporary Identifier (Group-Radio Network Temporary Identity of eNB distribution, Group-RNTI), can also be a fixed Group-RNTI, it can also be the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (Cel l Radi oNe tworkTemporary Identifier, C- RNTI) of one of UE in one group of UE.UE and bitmap corresponding relation can be that the network equipment notifies UE, such as notify UE numberings of the UE in affiliated group to UE；It can also be indicated using certain rule, such as one UE C-RNTI corresponds to first bit in bitmap to being 0 after 8 modulus, then, if being 1 after modulus, correspond to the 2nd bit, etc. in bitmap.

Step 502:It is to be bound one group of UE by bitmap information and running time-frequency resource in one group of UE generation control information, the control information when the network equipment will dispatch one group of UE. In the present embodiment, control information can be the Downlink Control Information that transmitting uplink data is carried out for dispatching one group of UE；Or or carry out the Downlink Control Information of downlink data reception for dispatching one group of UE.Wherein, the control information can be specially DCI.

Still exemplified by dispatching one group of UE and carry out transmitting uplink data, in the present embodiment, bitmap information can be carried in the DCI of generation, the bitmap information is used to indicate the UE in the one group of UE to be dispatched, and for the running time-frequency resource of the UE to be dispatched distribution, the bit number that usual bitmap packets contain is identical with the UE quantity included in one group of UE.It is to be used to dispatch the running time-frequency resource configuration schematic diagram that one group of UE carries out uplink in the present embodiment referring to Fig. 5 B；

In Fig. 5 B, the bitmap information included in the DCI is " 10111011 ", eight UE of serial number in one group of UE of each bit order correspondence in above-mentioned bitmap information, i.e. the corresponding bits of UE0 are " 1 ", and the corresponding bits of UE1 are " 0 ", the corresponding bits of UE2 are " 1 ", the corresponding bits of UE3 are " 1 ", and the corresponding bits of UE4 are " 1 ", and the corresponding bits of UE5 are " 0 ", the corresponding bits of UE6 are " 1 ", and the corresponding bits of UE7 are " 1 ".In the present embodiment, assuming that when the bit in bitmap information is " 1 ", represent the corresponding UE of scheduling, when bit in bitmap information is " 0 ", expression need not be dispatched in corresponding UE, such as Fig. 5 B, the corresponding bits of UE0 are " 1 ", expression needs to dispatch UE0, and the corresponding bits of UE1 are " 0 ", and expression need not dispatch UE1.

Each bit in above-mentioned bitmap information also further illustrates the corresponding running time-frequency resources of the UE to be dispatched except indicating whether foretelling at UE sunset corresponding to scheduling.In the present embodiment, assuming that one group of UE is scheduled in different time-domain resources and frequency domain resource, for example, when the subframe for sending DCI is n-th subframe, then preceding four UE of serial number are dispatched in the N+4 subframe in one group of UE, rear four UE of serial number are dispatched in the N+5 subframe in one group of UE, wherein, PRB13s of the UE0 to UE3 dispatched in the N+4 subframe respectively in the N+4 subframe proceeds by scheduling, each UE takes two PRB, that is the corresponding scheduling PRB of UE0 are PRB13 and PRB14, the corresponding scheduling PRB of UE1 are PRB15 and PRB16, the corresponding scheduling PRB of UE2 are PRB17 and PRB18, the corresponding scheduling PRB of UE3 are PRB19 and PRB20, similarly, PRB13s of the UE4 to UE7 dispatched in the N+5 subframe respectively in the N+5 subframe proceeds by scheduling, each UE takes two PRB, that is the corresponding scheduling PRB of UE4 are PRB13 and PRB14, the corresponding scheduling PRB of UE5 are PRB15 and PRB16, the corresponding scheduling PRB of UE6 are PRB17 and PRB18, the corresponding scheduling PRB of UE7 are PRB19 and PRB20.As in Fig. 5 B, the corresponding bits of UE0 are described previously for " 1 ", expression needs to dispatch UE0, and the corresponding scheduling PRB of UE0 are to dispatch UE0 on the PRB13 and PRB14 in the N+4 subframe, the i.e. PRB of the 13rd in " N+4 " individual subframe PRB and the 14th.

It should be noted that illustrate only in Fig. 5 B a kind of is mode that one group of UE configures running time-frequency resource, i.e., according to subframe numbers from small to large, and No. PRB mode from small to large is that one group of UE configures running time-frequency resource, in actual applications, The mode shown in Fig. 5 B can also be not limited to, can be according to configuration frequency domain resource PRB at equal intervals, for example, according to four PRB in interval, UE0 correspondences PRB13 and PRB14, UE1 correspondence PRB17 and PRB18, UE2 correspondence PRB21 and PRB22 etc., are not limited to this present embodiment.

The configuration information of frequency domain resource：In the present embodiment, during due to one group of UE of scheduling, each UE in one group of UE is dispatched on the different PRB of same subframe, it is therefore desirable to which configuring is used for the original position for dispatching UE PRB in a subframe, in the present embodiment, UE0 PRB original position is as distributed to.The configuration of the original position of the PRB can be multiplexed existing frequency domain resource distribution indicating means, the original position of frequency domain resource distribution can also be only informed in DCI to save transmission bit, the original position for such as distributing to UE0 PRB is the 13rd PRB, and distribute two PRB for each UE, 5 bit are then needed to indicate PRB original position, and the number for being the PRB of each UE distribution can be configured by high-level signaling or default mode, or the PRB numbers that each UE takes can also be indicated in DCI, such as represented to take 2 PRB with bit " 1 ", represented to take 3 PRB with bit " 0 ".In addition, when the PRB distributed between each UE in one group of UE is discontinuous, the information for the PRB being spaced between adjacent UE can be further included in DCI.It is above-mentioned only illustrative to the configuration mode of frequency domain resource, it is not used in and the DCI in the embodiment of the present invention is limited；

Modulation coding mode and redundancy version information：Existing modulation coding mode can be multiplexed modulation coding mode and redundancy versions are indicated in DCI；Or, the modulation coding mode and redundancy versions of a UE to be dispatched in one group of UE can also be represented using several bit, and other UE modulation coding mode and redundancy versions can be represented using the skew of modulation coding mode and redundancy versions to said one UE to be dispatched；It should be noted that when modulation coding mode and redundancy version information be when high-level signaling is configured or is configured by way of pre-setting, then can be

The modulation coding mode and redundancy version information are omitted in DCI, to save DCI bit;

TPC command for PUSCH:The information can be multiplexed mode of the prior art, be indicated in DCI；It should be noted that when TPC command for PUSCH are configured by way of high-level signaling is configured or pre-set, then the TPC command for PUSCH can be omitted in DCI, to save DCI bit;

Cycl ic Shift for DMRS and 0CC index:The information can be multiplexed mode of the prior art, be indicated in DCI；It should be noted that when Cycl ic Shift for DMRS and 0CC index are logical When the mode crossed high-rise signal deployment or pre-set is configured, then the Cyclic Shift for DMRS and OCC index can be omitted in DCI, to save DCI bit.

Step 503:The network equipment is scrambled by the group mark of one group of UE to the control information of generation., can be Group-RNTI pairs by the group of one group of UE mark the first after generation DCI in the present embodiment

DCI is scrambled.Wherein, DCI scramblings are referred mainly to scramble DCI CRC.

Step 504:The network equipment transmits the control information after scrambling by PDCCH.

Step 505:UE is received after control information, the control information is descrambled by the group mark of one group of UE belonging to the UE, it is determined that belonging to one group of UE.

Step 506:UE obtains bit corresponding with the UE in the bitmap information according to the UE with the corresponding relation of resource.

Still with reference to shown in Fig. 5 B, it is assumed that the UE for receiving control information is ■, then ■ passes through first

After Group-RNTI descrambles successfully to the DCI received, obtain bitmap information " 10111011 ", UE0 is first bit " 1 " according to numbering " UE0 " in the group of itself to obtain the corresponding bit in bitmap information, it can thus be appreciated that UE0 is scheduled, and corresponding resource is that PRB in the N+4 subframe is PRB13 and PRB14;Assuming that the UE for receiving control information is UE1, after then UE1 is descrambled successfully by the first Group-RNTI to the DCI received, obtain bitmap information " 10111011 ", UE1 is second bit " 0 " according to numbering " UE1 " in the group of itself to obtain the corresponding bit in bitmap information, it can thus be appreciated that UE1 is not scheduled. Step 507:When bit corresponding with the UE indicates that the UE is scheduled, the running time-frequency resource that the UE is indicated according to the bit carries out data transmission.

With reference to Fig. 5 B, still by taking UE0 as an example, then UE0 carries out transmitting uplink data according to the DCI received on the PRB13 and PRB14 of the N+4 subframe.

As seen from the above-described embodiment, it is because control information can be scheduled to one group of UE in the present embodiment, i.e., each

PDCCH can be used for dispatching one group of UE, compared with existing PDCCH is only capable of one UE of scheduling, save a large amount of PDCCH resources, for MTC UE especially for scheduling for transmitting small data packets, because each PDCCH can dispatch one group of UE, equivalent to the PUSCH resources that each PDCCH can dispatch multiple transmission data, the utilization rate of system spectral resources is which thereby enhanced.In addition, using previous embodiment, eat dishes without rice or wine link physical resource overhead in order to save as one group of UE or in order to save set up wireless heterogeneous networks repeatedly（Radio Resource Control, RRC) the RRC signaling expense of connection, so as to keep during the desynchronizing state in RRC connected states, if will one group of UE to be waken up from desynchronizing state by PDCCH so as to carry out up group it is synchronous when, the network equipment can generate control information PDCCH orders（), order by one group of UE and the non-competing preamble (lead codes needed to use in the PDCCH order）, and send preamble physical accidental access-in resource（PhysicalRandom Access Channel, PRACH) running time-frequency resource bound.

So that the network equipment is eNB as an example, up group of synchronous detailed process is carried out to one group of UE to be included：When eNB judges to need to use PDCCH order to make one group of UE initiate up group of synchronization, eNB is scrambled using the Group-RNTI of one group of UE to the DCI for transmitting PDCCH order, and the wherein Group-RNTI of one group of UE can in advance be known by eNB and one group of UE；DCI can be multiplexed the DCI format for the Format 1A that existing PDCCH order are used, it would however also be possible to employ a kind of DCI format of new definition；Each UE in one group of UE is according to the Group-RNTI of one group of UE, receive the DCI for carrying PDCCH order, and according to the content indicated in DCI, choose itself corresponding preamble, and preamble is sent on the corresponding PRACH running time-frequency resources of preamble of selection, to start non-competing random access procedure.

Wherein, each group of UE is carried out in up group of synchronous DCI, a preamble index (Suo Gong I) and a PRACH mask index (PRACH resource index can be indicated）.One group of UE is received after DCI, can according to UE in pre-defined group order, the preamble index indicated since the DCI, each UE is according to continuous, or the order of certain rule uses the corresponding preamble of follow-up index, for example, preamble index are 20, assuming that there is 8 UE in one group of UE, then the corresponding preamble index of preamble that 8 UE are used in sequence are followed successively by 20 to 27;Or, preamble and PRACH mask index (PRACH resource index can be indicated）.One group of UE is received after DCI, can according to UE in pre-defined group order, adopt The PRACH resources indicated with time division way using PRACH mask index send the preamble, wherein can be biased between two adjacent UE with certain interval of time.

The two ways of carrying information can be used in combination in above-mentioned DCI, such as provide that the UE in one group of UE is divided into some subgroups in sequence, then the UE in each subgroup uses different preamble in sequence, and sent in identical PRACH resources, and PRACH resources certain interval of time is biased between different subgroups, and preamble can be multiplexed between subgroup, and this embodiment of the present invention is not limited.

Another sunset is foretold, when carrying out up group of synchronization to one group of UE, a bitmap can also be included in DCI, up group of synchronous UE is carried out for indicating to need to be triggered in one group of UE, then preamble is indicated in the manner previously described to the UE for needing to carry out up group of synchronization again, and transmission preamble PRACH resources, this embodiment of the present invention is not limited.Above embodiment described in LTE system, control information is transmitted by PDCCH one group of UE is scheduled, so as to realize the process that one group of UE carries out data transmission.Except the implementation for being bound one group of UE and time-domain resource, frequency domain resource or running time-frequency resource in control information described above makes an exception, the embodiment of the present invention can be applied in code division multiple address communication system, i.e. when dispatching one group of UE, one group of UE can be bound with code resource, time code resource or frequency code resource in the control information, below exemplified by one group of UE and code resource to be bound, one group of UE data transmission procedure is described：

When one group of UE to be scheduled and code resource are bound, a bitmap is used to represent the one group of UE and the code resource for one group of UE distribution of scheduling in the control information,, can be pseudo- orthogonal wherein for can be with orthogonal between the code resource of one group of UE distribution, or can be with nonopiate.For example, it is assumed that comprising 8 UE in one group of UE, its numbering is followed successively by UE0 to UE7, and corresponding code resource is respectively the 5th number resource（#5) to the 12nd number resource（#12), in the control information of transmission, it is 10111011 comprising a bitmap, the bitmap had both represented the UE being scheduled in the group, the code resource that scheduled UE is used is represented again, i.e. UE0, UE2, UE3, UE4, UE6 and UE7 are scheduled, and the code resource that they are transmitted corresponding to data is respectively a yard resource：#5, #7, #8, #9, #11, and #12.

Except the implementation that one group of UE described above and code resource are bound makes an exception, when one group of UE and time code resource or frequency code resource are bound, then each bit is to indicate whether corresponding UE is scheduled in a bitmap, the time-domain resource and code resource distributed when UE is scheduled are also indicated that, or frequency domain resource and code resource, specific binding relationship is similar with the process that running time-frequency resource is bound by one group of UE with what is shown in foregoing 5th embodiment, will not be repeated here. Embodiment with data transmission method of the present invention is corresponding, and present invention also offers data transmission device, the network equipment and UE embodiment.

It is one embodiment block diagram of data transmission device of the present invention referring to Fig. 6, the device can be set in the network device：

The device includes：Generation unit 610 and transmission unit 620.

Wherein, generation unit 610, are bound one group of UE with resource for generating in control information, the control information, one group of UE includes at least two UE;

Transmission unit 620, for transmitting the control information that the generation unit 610 is generated, so that one group of UE is carried out data transmission by the resource in the control information.

Optionally, the generation unit 610, can be specifically in the control information of generation, using following at least one modes, one group of UE be bound with resource：One group of UE is bound with time-domain resource；One group of UE is bound with frequency domain resource；One group of UE is bound with code resource.

Optionally, the generation unit 610, can be specifically in the control information of generation, one group of UE is bound by bitmap bitmap information and resource, each bit in the bitmap information indicates whether a UE is scheduled, and is the resource of scheduled UE distribution.

Optionally, the control information that the generation unit 610 is generated, can be the control information that transmitting uplink data is carried out for dispatching one group of UE；Or or carry out the control information of downlink data reception for dispatching one group of UE.It is another embodiment block diagram of data transmission device of the present invention referring to Fig. 7, the device can be set in the network device：

The device includes：Acquiring unit 710, generation unit 720 and transmission unit 730.

Wherein, acquiring unit 710, for for before the generation unit 720 generation control information, obtain the group mark of one group of UE, and each UE and the corresponding relation of resource in one group of UE, described group of mark be used to scramble the CRC CRC of the control information；

Generation unit 720, is bound one group of UE with resource according to each UE in one group of UE and the corresponding relation of resource for generating in control information, the control information.

Optionally, the generation unit 720, can be specifically in the control information of generation, using following at least one modes, one group of UE be bound with resource：One group of UE is bound with time-domain resource；One group of UE is bound with frequency domain resource；One group of UE is bound with code resource.

Optionally, the generation unit 720, can be specifically in the control information of generation, one group of UE be led to Cross bitmap bitmap information to be bound with resource, each bit in the bitmap information indicates whether a UE is scheduled, and be the resource of scheduled UE distribution.

Optionally, the control information that the generation unit 720 is generated, can be the control information that transmitting uplink data is carried out for dispatching one group of UE；Or or carry out the control information of downlink data reception for dispatching one group of UE.

Transmission unit 730, for transmitting the control information that the generation unit 720 is generated, so that one group of UE is carried out data transmission by the resource in the control information.It is the embodiment block diagram of inventive network equipment referring to Fig. 8, the network equipment can be specially the base station in network：

The network equipment includes：Processor（Processor) 810 and radio receiving-transmitting unit（Transceiver) 820.Wherein, processor 810, are bound one group of UE with resource for generating in control information, the control information, one group of UE includes at least two UE;

Radio receiving-transmitting unit 820, for transmitting the control information that the processor 810 is generated, so that one group of UE is carried out data transmission by the resource in the control information.

Optionally, the processor 810, can be specifically in the control information of generation, using following at least one modes, one group of UE be bound with resource：One group of UE is bound with time-domain resource；One group of UE is bound with frequency domain resource；One group of UE is bound with code resource.

Optionally, the processor 810, can be specifically in the control information of generation, one group of UE is bound by bitmap bitmap information and resource, each bit in the bitmap information indicates whether a UE is scheduled, and is the resource of scheduled UE distribution.

Optionally, the processor 810, is additionally operable to before generation control information, obtains the group mark of one group of UE, and each UE and the corresponding relation of resource in one group of UE, described group of mark be used to scramble the CRC CRC of the control information.It is another embodiment block diagram of data transmission device of the present invention referring to Fig. 9, the device can be arranged in UE：

The device includes：Receiving unit 910, determining unit 920 and transmission unit 930.

Wherein, receiving unit 910, for receiving the control information transmitted by PDCCH, the control information is bound one group of UE with resource, and one group of UE includes at least two UE;

Determining unit 920, for determining whether the UE belongs to the control information that the receiving unit 910 is received In one group of UE including;

Transmission unit 930, for when the determining unit 920 determines that the UE belongs to one group of UE, according to being that the resources of the UE configurations carries out data transmission in the control information.

Optionally, in the control information that the receiving unit 910 is received, using following at least one modes, one group of UE is bound with resource：One group of UE is bound with time-domain resource；One group of UE is bound with frequency domain resource；One group of UE is bound with code resource.

Optionally, in the control information that the receiving unit 910 is received, one group of UE can be bound by bitmap bitmap information and resource, each bit in the bitmap information indicates whether a UE is scheduled, and be the resource of scheduled one UE distribution.

Optionally, the transmission unit 930, can specifically for according to being that the resource of UE configuration carries out transmitting uplink data in the control information, or, according to being that the resources of the UE configurations carries out downlink data reception in the control information.It is another embodiment block diagram of data transmission device of the present invention referring to Figure 10, the device can be arranged in UE：

The device includes：Acquiring unit 1010, receiving unit 1020, determining unit 1030 and transmission unit 1040.Wherein, acquiring unit 1010, the group for obtaining one group of UE belonging to the UE is identified, and the UE and the corresponding relation of resource, and one group of UE includes at least two UE;

Receiving unit 1020, for receiving the control information transmitted by PDCCH, the control information that the control information received is scrambled specifically by the group mark of one group of UE belonging to the UE；

Determining unit 1030, for being descrambled by the group mark of one group of UE belonging to the UE after the control information that the receiving unit 1020 is received, it is determined that belonging to one group of UE;

Transmission unit 1040, for when the determining unit 1030 determines that the UE belongs to one group of UE, according to being that the resources of the UE configurations carries out data transmission in the control information.

Optionally, in the control information that the receiving unit 1020 is received, one group of UE can be bound with time-domain resource, either one group of UE is bound with frequency domain resource or is bound one group of UE with running time-frequency resource.

Optionally, in the control information that the receiving unit 1020 is received, using following at least one modes, one group of UE is bound with resource：One group of UE is bound with time-domain resource；One group of UE is bound with frequency domain resource；One group of UE is bound with code resource.

Optionally, the transmission unit 1040, can specifically for according to being that the resource of UE configuration carries out transmitting uplink data in the control information, or, according to be in the control information UE configurations resource carry out under Row data receiver.

Specifically, the transmission unit 1040 can include（Not shown in Figure 10）：

Subelement is obtained, for obtaining bit corresponding with the UE in the bitmap information that the receiving unit 1020 is received with the corresponding relation of resource according to the UE；

Transmission subelement, for when the bit that the acquisition subelement is obtained indicates that the UE is scheduled, the resource indicated according to the bit to carry out data transmission.Referring to Figure 11, the embodiment block diagram for being UE of the present invention：

The UE includes：Radio receiving-transmitting unit 1110 and processor 1120.

Wherein, the radio receiving-transmitting unit 1110, for receiving the control information transmitted by PDCCH, the control information is bound one group of UE with resource, and one group of UE includes at least two UE;

Processor 1120, for determining whether the UE belongs to the one group of UE included in the control information that the radio receiving-transmitting unit 1110 is received;

The radio receiving-transmitting unit 1110, is additionally operable to when the processor 1120 determines that the UE belongs to one group of UE, according to being that the resource of UE configuration carries out data transmission in the control information.

Optionally, in the control information that the radio receiving-transmitting unit 1110 is received, using following at least one modes, one group of UE is bound with resource：One group of UE is bound with time-domain resource；One group of UE is bound with frequency domain resource；One group of UE is bound with code resource.

Optionally, in the control information that the radio receiving-transmitting unit 1110 is received, one group of UE can be bound by bitmap bitmap information and resource, each bit in the bitmap information indicates whether a UE is scheduled, and is the resource of scheduled one UE distribution.

Optionally, the processor 1120, can be also used for obtaining the group mark of one group of UE belonging to the UE, and the UE and the corresponding relation of resource；The control information that the control information that the radio receiving-transmitting unit 1110 is received can be scrambled specifically by one belonging to the UE group UE group mark；The processor, can be specifically for being descrambled after the control information that the radio receiving-transmitting unit is received, it is determined that belonging to one group of UE by the group mark of one group of UE belonging to the UE.

Optionally, the radio receiving-transmitting unit 1110, can specifically for according to being that the resource of UE configuration carries out transmitting uplink data in the control information, or, according to being that the resources of the UE configurations carries out downlink data reception in the control information.As seen from the above-described embodiment, at least two UE will be included in network equipment generation control information, the control information One group of UE bound with resource, transmit the control information, one group of UE be scheduled, so that one group of UE is carried out data transmission by the resource in the control information.Control information in the embodiment of the present invention can be scheduled to one group of UE, for a PDCCH, it can be used for dispatching one group of UE, compared with an existing PDCCH is only capable of one UE of scheduling, a large amount of PDCCH resources are saved, for the MTC UE especially for scheduling for transmitting small data packets, due to one group of UE can be dispatched, for example, each PDCCH can dispatch the PUSCH resources of multiple transmission data, the utilization rate of system spectral resources is which thereby enhanced.

Those skilled in the art can be understood that the technology in the embodiment of the present invention can add the mode of required general hardware platform to realize by software.Understood based on such, the part that technical scheme in the embodiment of the present invention substantially contributes to prior art in other words can be embodied in the form of software product, the computer software product can be stored in storage medium, such as R0M/RAM, magnetic disc, CD, including some instructions are to cause a computer equipment（Can be personal computer, server, or network equipment etc.）Perform the method described in some parts of each embodiment of the invention or embodiment.

Each embodiment in this specification is described by the way of progressive, and identical similar part is mutually referring to what each embodiment was stressed is the difference with other embodiment between each embodiment.For system embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, the relevent part can refer to the partial explaination of embodiments of method.

The embodiments of the present invention described above are not intended to limit the scope of the present invention.Any modifications, equivalent substitutions and improvements made within the spirit and principles in the present invention etc., should be included in the scope of the protection.

Claims

Claim

1st, a kind of data transmission method, it is characterised in that methods described includes：

The network equipment, which is generated, is bound one group of UE with resource in control information, the control information, and one group of UE includes at least two UE;

The control information is transmitted, so that one group of UE is carried out data transmission by the resource in the control information.

2nd, according to the method described in claim 1, it is characterised in that use following at least one modes, one group of UE is bound with resource：

One group of UE is bound with time-domain resource；

One group of UE is bound with frequency domain resource；

One group of UE is bound with code resource.

3rd, method according to claim 1 or 2, it is characterised in that described to be bound one group of UE and resource specially：

One group of UE is bound by bitmap bitmap information and resource, each bit in the bitmap information indicates whether a UE is scheduled, and be the resource of scheduled UE distribution.

4th, the method according to claims 1 to 3 any one, it is characterised in that before the network equipment generation control information, in addition to：The group mark of one group of UE, and each UE and the corresponding relation of resource in one group of UE are obtained, described group of mark is used to scramble the CRC CRC of the control information；

It is described to be bound one group of UE and resource specially：One group of UE is bound with resource according to each UE in one group of UE and the corresponding relation of resource.

5th, a kind of data transmission method, it is characterised in that methods described includes：

UE receives control information, and the control information is bound one group of UE with resource, and one group of UE includes at least two UE;

When the UE determines to belong to one group of UE, according to being that the resource of UE configuration carries out data transmission in the control information. 6th, method according to claim 5, it is characterised in that use following at least one modes, one group of UE is bound with resource：

One group of UE is bound with time-domain resource；

One group of UE is bound with frequency domain resource；

One group of UE is bound with code resource.

7th, the method according to claim 5 or 6, it is characterised in that described to be bound one group of UE and resource specially：One group of UE is bound by bitmap bitmap information and resource, each bit in the bitmap information indicates whether a UE is scheduled, and be the resource of scheduled one UE distribution.

8th, method according to claim 7, it is characterised in that methods described also includes：The UE obtains the group mark of one group of UE belonging to the UE, and the UE and the corresponding relation of resource；

The control information is specially：The control information scrambled by the group mark of one group of UE belonging to the UE；

The UE determines that belonging to one group of UE includes：The UE is descrambled after the control information by the group mark of one group of UE belonging to the UE, it is determined that belonging to one group of UE.

9th, method according to claim 8, it is characterised in that described according to being that the resource of UE configuration carries out data transmission including in the control information：

The UE obtains bit corresponding with the UE in the bitmap information according to the UE with the corresponding relation of resource；

When bit corresponding with the UE indicates that the UE is scheduled, the resource that the UE is indicated according to the bit carries out data transmission.

10th, a kind of data transmission device, it is characterised in that described device includes：

Generation unit, is bound one group of UE with resource for generating in control information, the control information, one group of UE includes at least two UE;

Transmission unit, the control information for transmitting the generation unit generation, so that one group of UE is carried out data transmission by the resource in the control information. 11st, device according to claim 10, it is characterised in that the generation unit, specifically in the control information of generation, using following at least one modes, one group of UE is bound with resource：One group of UE is bound with time-domain resource；One group of UE is bound with frequency domain resource；One group of UE is bound with code resource.

12nd, the device according to claim 10 or 11, it is characterized in that, the generation unit, specifically in the control information of generation, one group of UE is bound by bitmap bitmap information and resource, each bit in the bitmap information indicates whether a UE is scheduled, and is the resource of scheduled UE distribution.

13rd, the device according to claim 10 to 12 any one, it is characterised in that the network equipment also includes：

Acquiring unit, for before generation unit generation control information, the group mark of one group of UE, and each UE and the corresponding relation of resource in one group of UE are obtained, described group of mark is used to scramble the CRC CRC of the control information；

The generation unit, specifically for when generating control information, being bound one group of UE with resource according to each UE in one group of UE and the corresponding relation of resource.

14th, a kind of network equipment, it is characterised in that the network equipment includes：

Processor, is bound one group of UE with resource for generating in control information, the control information, one group of UE includes at least two UE;

Radio receiving-transmitting unit, the control information for transmitting the processor generation, so that one group of UE is carried out data transmission by the resource in the control information.15th, the network equipment according to claim 14, it is characterised in that the processor, specifically in the control information of generation, using following at least one modes, one group of UE is bound with resource：One group of UE is bound with time-domain resource；One group of UE is bound with frequency domain resource；One group of UE is bound with code resource.16th, the network equipment according to right will go to 14 or 15, it is characterized in that, the processor, specifically in the control information of generation, one group of UE is bound by bitmap bitmap information and resource, each bit in the bitmap information indicates whether a UE is scheduled, and is scheduled one The resource of UE distribution.

17th, the network equipment according to claim 14 to 16 any one, it is characterized in that, the processor, it is additionally operable to before generation control information, obtain the group mark of one group of UE, and each UE and the corresponding relation of resource in one group of UE, described group of mark be used to scramble the CRC CRC of the control information.

18th, a kind of data transmission device, it is characterised in that described device includes：

Receiving unit, for receiving control information, the control information is bound one group of UE with resource, and one group of UE includes at least two UE;

Determining unit, for determining whether the UE belongs to the one group of UE included in the control information that the receiving unit is received;

Transmission unit, for when the determining unit determines that the UE belongs to one group of UE, according to being that the resources of the UE configurations carries out data transmission in the control information.

19th, device according to claim 18, it is characterised in that in the control information that the receiving unit is received, using following at least one modes, one group of UE is bound with resource：One group of UE is bound with time-domain resource；One group of UE is bound with frequency domain resource；One group of UE is bound with code resource.20th, the device according to claim 18 or 19, it is characterized in that, in the control information that the receiving unit is received, one group of UE is bound by bitmap bitmap information and resource, each bit in the bitmap information indicates whether a UE is scheduled, and is the resource of scheduled one UE distribution.21st, device according to claim 20, it is characterised in that the UE also includes：Acquiring unit, the group for obtaining one group of UE belonging to the UE is identified, and the UE and the corresponding relation of resource；

The control information that the control information that the receiving unit is received is scrambled specifically by the group mark of one group of UE belonging to the UE；

The determining unit, specifically for being descrambled by the group mark of one group of UE belonging to the UE after the control information that the receiving unit is received, it is determined that belonging to one group of UE. 22nd, device according to claim 21, it is characterised in that the transmission unit includes：Subelement is obtained, for obtaining bit corresponding with the UE in the bitmap information that the receiving unit is received with the corresponding relation of resource according to the UE；

Transmission subelement, for when the bit that the acquisition subelement is obtained indicates that the UE is scheduled, the resource indicated according to the bit to carry out data transmission.

23rd, a kind of UE, it is characterised in that the UE includes：

Radio receiving-transmitting unit, for receiving control information, the control information is bound one group of UE with resource, and one group of UE includes at least two UE;

Processor, for determining whether the UE belongs to the one group of UE included in the control information that the radio receiving-transmitting unit is received;

The radio receiving-transmitting unit, is additionally operable to when the processor determines that the UE belongs to one group of UE, according to being that the resource of UE configuration carries out data transmission in the control information.24th, UE according to claim 23, it is characterised in that in the control information that the radio receiving-transmitting unit is received, using following at least one modes, one group of UE is bound with resource：One group of UE is bound with time-domain resource；One group of UE is bound with frequency domain resource；One group of UE is bound with code resource.25th, the UE according to claim 23 or 24, it is characterized in that, in the control information that the radio receiving-transmitting unit is received, one group of UE is bound by bitmap b i tmap information with resource, each bit in the b i tmap information indicates whether a UE is scheduled, and is the resource of scheduled one UE distribution.26th, UE according to claim 25, it is characterised in that

The processor, the group mark for one group of UE for being additionally operable to obtain belonging to the UE, and the UE and the corresponding relation of resource；

The control information that the radio receiving-transmitting unit is received, the control information scrambled specifically by the group mark of one group of UE belonging to the UE；

The processor, specifically for being descrambled by the group mark of one group of UE belonging to the UE after the control information that the radio receiving-transmitting unit is received, it is determined that belonging to one group of UE.