CN108631986A

CN108631986A - A kind of method and apparatus of determining down control channel DMRS resources

Info

Publication number: CN108631986A
Application number: CN201710184582.7A
Authority: CN
Inventors: 王磊; 艾托尼
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2017-03-24
Filing date: 2017-03-24
Publication date: 2018-10-09
Anticipated expiration: 2037-03-24
Also published as: CN108631986B

Abstract

An embodiment of the present invention provides a kind of method and apparatus of determining down control channel DMRS resources, this method includes：The display signaling and/or implicit mode that terminal is sent by base station know that terminal receives demodulated reference signal transmissions pattern and/or time-domain position used in down control channel.It realizes DMRS mapping patterns used in flexible configurating downlink control channel transmission, adapts to different transmitting scenes, and the resource overhead of DMRS can be controlled.

Description

A kind of method and apparatus of determining down control channel DMRS resources

Technical field

The present invention relates to field of communication technology more particularly to a kind of determining down control channel DMRS (Demo dulation Reference Signal, demodulated reference signal) resource method and apparatus.

Background technology

In LTE (Long Term Evolution, long term evolution) system, with reference to letter used in control channel demodulation Number pattern is fixed.Such as PDCCH (Physical Downlink Control Channel physical downs control letters Road) for, it is CRS (Cell Reference Signal, cell reference signals) to demodulate used reference signal, is passed Defeated port is AP 0~4, and specifically used port number is obtained by PBCH channels (Physical Broadcast Channel)；For EPDCCH For (enhancing Physical Downlink Control Channel)/MPDCCH (Physical Downlink Control Channel), demodulating used reference signal is CRS, transmission port are AP 107-110, and the antenna port for transmitting DMRS is determined by the rule that agreement provides.In future In mobile communication system, the transmission mode that down control channel is supported is more abundant, such as SFBC (Space Frequency Block Code, space-frequency block codes), precoder (precoder) cycling (cycle), MU-MIMO (Multi-User Multiple-Input Multiple-Output, multi-user's multiple-input and multiple-output), SU-MIMO (Single User MIMO) etc. is a variety of The introducing of transmission technology necessarily increases the resource overhead of pilot tone.

Pilot-frequency expense is controlled under the premise of meeting flexible transmission mode however, how to control, current there is no clear Scheme.

Invention content

In view of above-mentioned technical problem, the embodiment of the present invention provide a kind of method of determining down control channel DMRS resources and Device realizes DMRS mapping patterns used in flexible configurating downlink control channel transmission, adapts to different transmitting scenes.

The first aspect according to the present invention provides a kind of method of determining down control channel DMRS resources, described Method includes：

The display signaling and/or implicit mode that terminal is sent by base station know that terminal receives down control channel and made Demodulated reference signal transmissions pattern and/or time-domain position.

Optionally, the display signaling and/or implicit mode that the terminal is sent by base station know that terminal receives downlink Demodulated reference signal transmissions pattern and/or time-domain position used in control channel, including：

The display signaling and/or implicit mode that the terminal is sent by base station know that terminal receives first part's downlink Demodulated reference signal pattern and/or time domain position used in the down control channel demodulation transmitted in control channel resource collection It sets, wherein first part's down control channel resources set is used for transmission common control channel and/or terminal-specific UE- The down control channel of specific；And/or

The display signaling and/or implicit mode that the terminal is sent by base station know that terminal receives second part downlink Demodulated reference signal pattern and/or time domain position used in the down control channel demodulation transmitted in control channel resource collection It sets, wherein the second part down control channel resources set is used for transmission the downlink control of the UE-specific of dispatch terminal Channel processed.

Optionally, the display signaling and/or implicit mode that the terminal is sent by base station know that terminal receives first Transmitted in the down control channel resources set of part down control channel demodulation used in demodulated reference signal pattern and/or Time-domain position, including：

The display signaling that the terminal is sent by base station knows that terminal receives first part's down control channel resources collection The mapping pattern and/or time-domain position of demodulated reference signal DMRS used in the down control channel demodulation transmitted in conjunction；With/ Or

The terminal is known that terminal receives by implicit and is transmitted in first part down control channel resources set The mapping pattern and/or time-domain position of DMRS used in down control channel demodulation.

Optionally, the display signaling is to carry the Master Information Block mib information of DMRS mapping patterns instruction information, described DMRS mapping patterns indicate mapping pattern numbers of the information instruction DMRS in resource block RB.

Optionally, the time domain instruction information of DMRS mapping patterns, the time domain instruction letter are also carried in the mib information In breath instruction orthogonal frequency division multiplex OFDM symbol resource is mapped with the presence or absence of DMRS.

Optionally, if the time-domain resource shared by first part's down control channel resources set is up to P OFDM symbol Number when,

Ceil (log are carried in the mib information₂P) bit bit information is indicated from first part's down control channel resources First OFDM symbol in set come into existence DMRS mapping resource continuous OFDM symbol number；Or

P bit information is carried in the mib information indicates that there are DMRS to map resource by way of bitmap bitmap OFDM symbol.

Optionally, DMRS used in the down control channel transmitted in first part's down control channel resources set Mapping pattern is identical as DMRS mapping patterns used in Physical Broadcast Channel PBCH；Or

DMRS mapping graphs used in the down control channel transmitted in first part's down control channel resources set Sample is by protocol definition.

Optionally, the display signaling and/or implicit mode that the terminal is sent by base station know that terminal receives second Transmitted in the down control channel resources set of part down control channel demodulation used in demodulated reference signal pattern and/or Time-domain position, including：

The display signaling that the terminal is sent by base station knows that terminal receives second part down control channel resources collection DMRS mapping patterns and/or time-domain position used in the down control channel demodulation transmitted in closing；And/or

The terminal, which is known by implicit mode in terminal reception second part down control channel resources set, to be transmitted Down control channel used in DMRS mapping patterns and/or time-domain position.

Optionally, the display signaling that the terminal is sent by base station knows that terminal receives second part down control channel DMRS mapping patterns used in the down control channel demodulation transmitted in resource collection, including：

The terminal carried in the high-level signaling that the terminal is sent according to base station receives second part down control channel money DMRS mapping patterns instruction information used in the down control channel transmitted in the set of source determines second part downlink control letter DMRS mapping patterns used in the down control channel transmitted in road resource collection；Or

The terminal carried in the physical layer signaling that the terminal is sent according to base station receives second part down control channel DMRS mapping patterns used in the down control channel transmitted in resource collection indicate information, determine that second part downlink controls Information used DMRS mapping patterns when transmitting；

Wherein, Downlink Control Information includes first part's Downlink Control Information and second part Downlink Control Information, wherein First part's Downlink Control Information and second part Downlink Control Information transmit on different running time-frequency resources, and described first Part Downlink Control Information includes the relevant information of second part Downlink Control Information；

Wherein, first part's Downlink Control Information is notified using fixed DMRS mapping patterns and/or base station DMRS mapping patterns, terminal needs to receive first part's Downlink Control Information first, and is controlled according to first part's downlink The relevant information of information acquisition second part Downlink Control Information.

Optionally, DMRS used in the down control channel transmitted in second part down control channel resources set Mapping pattern is identical as DMRS mapping patterns used in PBCH；Or

DMRS mapping graphs used in the down control channel transmitted in second part down control channel resources set Sample is by protocol definition.

Optionally, the time domain that DMRS mapping patterns are carried in the high-level signaling or first part's Downlink Control Information refers to Show information, whether there is DMRS in the time domain instruction information instruction OFDM symbol maps resource.

Optionally, if the time-domain resource shared by the second down control channel resources set is up to P OFDM symbol,

Ceil (log are carried in the high-level signaling or first part's Downlink Control Information₂P) bit bit information indicates Out of second down control channel resources set first OFDM symbol come into existence DMRS mapping resource continuous OFDM symbol Number or first OFDM symbol occupied from second part Downlink Control Information come into existence DMRS mapping resource it is continuous OFDM symbol number；Or

Side of the P bit information by bitmap bitmap is carried in the high-level signaling or first part's Downlink Control Information There are the OFDM symbols that DMRS maps resource for formula instruction.

Optionally, the demodulated reference signal pattern includes at least port numbering used in demodulated reference signal transmissions, The position and base station for occupying resource understand consistent resource impact rule with terminal.

Optionally, the demodulated reference signal pattern is resource occupied by reference signal transmission continuous M in the time domain Orthogonal frequency division multiplex OFDM symbol, the resource impact rule on frequency domain within the scope of 12 subcarrier subcarrier, wherein M is Positive integer more than or equal to 1.

Optionally, different port numberings has different DMRS mapping patterns, if the transmission of down control channel uses Port number be X, the offset offset that identical port maps in a RB be Y, what each port occupied in a RB Resource unit number is Z, then the numerical value of each group (X Y Z) determines a kind of DMRS mapping patterns, and X, Y, Z is more than or equal to 1 Positive integer.

The second aspect of embodiment according to the present invention additionally provides a kind of side of determining down control channel DMRS resources Method, the method includes：

Base station is by showing that signaling and/or implicit mode notify terminal receives to demodulate used in down control channel to join Examine signal transmission pattern and/or time-domain position.

Optionally, base station is by showing that signaling and/or implicit mode notify terminal to receive down control channel and used Demodulated reference signal transmissions pattern and/or time-domain position, including：

The base station is by showing that signaling and/or implicit mode notify terminal to receive first part's down control channel money DMRS mapping patterns and/or time-domain position used in the down control channel transmitted in the set of source, first part's downlink Control channel resource collection is used for transmission the down control channel of common control channel and/or terminal-specific UE-specific；Or Person

The base station is by showing that signaling and/or implicit mode notify terminal to receive second part down control channel money DMRS mapping patterns and/or time-domain position used in the down control channel transmitted in the set of source, the second part downlink Control channel resource collection is used for transmission the down control channel of the UE-specific of dispatch terminal.

Optionally, the base station is by showing that signaling and/or implicit mode notify terminal to receive first part's downlink control DMRS mapping patterns and/or time-domain position used in the down control channel transmitted in channel resource set processed, including：

Mapping pattern in the base station selected predefined DMRS mapping patterns set transmits DMRS, and is believed by MIB The DMRS mapping patterns instruction information notice terminal carried in breath or system information block SIB information receives first part's downlink control DMRS mapping patterns and/or time-domain position used in the down control channel transmitted in channel resource set processed, the DMRS Mapping pattern indicates mapping pattern numbers of the information instruction DMRS in RB；Or

The DMRS mapping patterns that the base station is used according to PBCH are transmitted in first part's down control channel resources set DMRS used in the down control channel of interior transmission；Or

It is transmitted in first part's down control channel resources set according to the DMRS mapping patterns of protocol definition the base station DMRS used in the down control channel of interior transmission.

Optionally, the time domain instruction information of DMRS mapping patterns is also carried in the mib information.

Optionally, the base station is by showing that signaling and/or implicit mode notify terminal to receive second part downlink control DMRS mapping patterns and/or time-domain position used in the down control channel transmitted in channel resource set processed, including：

Mapping pattern in the base station selected predefined DMRS mapping patterns set transmits DMRS, and is believed by high level The interior downlink control transmitted of its reception second part down control channel resources set of indication signaling notice terminal carried in order DMRS mapping patterns used in channel；Or

Mapping pattern in the base station selected predefined DMRS mapping patterns set transmits DMRS, and passes through physical layer Signal DMRS mapping graphs used in the down control channel transmitted in second part down control channel resources set Sample；Or

The DMRS mapping patterns that the base station is used according to PBCH are transmitted in second part down control channel resources set DMRS mapping patterns used in the down control channel of interior transmission；Or

The base station is according to the resource mapping method of down control channel and/or the type of service and/or biography of scheduling data Defeated scene selects in predefined DMRS mapping patterns set, is transmitted in second part down control channel resources set DMRS mapping patterns used in down control channel.

According to the present invention in terms of the third of embodiment, a kind of dress of determining down control channel DMRS resources is additionally provided It sets, described device includes：

First determining module, under display signaling and/or implicit mode for being sent by base station know that terminal receives Demodulated reference signal transmissions pattern and/or time-domain position used in row control channel.

Optionally, first determining module includes：

First determination unit, display signaling and/or implicit mode for being sent by base station know that terminal receives the Transmitted in a part of down control channel resources set down control channel demodulation used in demodulated reference signal pattern and/ Or time-domain position, wherein first part's down control channel resources set is used for transmission common control channel and/or terminal The down control channel of special UE-specific；And/or

Second determination unit, display signaling and/or implicit mode for being sent by base station know that terminal receives the Transmitted in two part down control channel resources set down control channel demodulation used in demodulated reference signal pattern and/ Or time-domain position, wherein the second part down control channel resources set is used for transmission the UE-specific of dispatch terminal Down control channel.

Optionally, first determination unit includes：

First determination subelement, the display signaling for being sent by base station know that terminal receives first part's downlink control The mapping pattern of demodulated reference signal DMRS used in the down control channel demodulation transmitted in channel resource set and/or when Domain position；And/or

Second determination subelement knows that terminal receives first part's down control channel resources collection for passing through implicit The mapping pattern and/or time-domain position of DMRS used in the down control channel demodulation transmitted in conjunction.

Optionally, the time domain instruction information of DMRS mapping patterns, the time domain instruction letter are also carried in the mib information In breath instruction OFDM symbol resource is mapped with the presence or absence of DMRS.

Optionally, DMRS used in the down control channel transmitted in first part's down control channel resources set Mapping pattern is identical as DMRS mapping patterns used in PBCH；Or

Optionally, second determination unit includes：

Third determination subelement, the display signaling for being sent by base station know that terminal receives the control of second part downlink DMRS mapping patterns and/or time-domain position used in the down control channel demodulation transmitted in channel resource set；And/or

4th determination subelement, for knowing that terminal receives second part down control channel resources by implicit mode DMRS mapping patterns and/or time-domain position used in the down control channel transmitted in set.

Optionally, the third determination subelement is further used for：

The terminal carried in the high-level signaling sent according to base station receives in second part down control channel resources set DMRS mapping patterns used in the down control channel of transmission indicate information, determine second part down control channel resources collection DMRS mapping patterns used in the down control channel transmitted in conjunction；And/or

The terminal carried in the physical layer signaling sent according to base station receives second part down control channel resources set DMRS mapping patterns used in the down control channel of middle transmission indicate information, determine that second part Downlink Control Information transmits When used DMRS mapping patterns；

Ceil (log are carried in the high-level signaling or first part's Downlink Control Information₂P) bit bit information indicates Out of second part down control channel resources set first OFDM symbol come into existence DMRS mapping resource continuous OFDM Symbol numbers or first OFDM symbol occupied from second part Downlink Control Information come into existence DMRS mapping resources Continuous OFDM symbol number；Or

4th aspect of embodiment according to the present invention, additionally provides a kind of dress of determining down control channel DMRS resources It sets, which is characterized in that described device includes：

Second determining module, for by showing that signaling and/or implicit mode notify terminal to receive down control channel Used demodulated reference signal transmissions pattern and/or time-domain position.

Optionally, second determining module includes：

Third determination unit, for by showing that signaling and/or implicit mode notify terminal to receive first part's downlink DMRS mapping patterns and/or time-domain position used in the down control channel transmitted in control channel resource collection, described the A part of down control channel resources set is used for transmission common control channel and/or the downlink of terminal-specific UE-specific Control channel；Or

4th determination unit, for by showing that signaling and/or implicit mode notify terminal to receive second part downlink DMRS mapping patterns and/or time-domain position used in the down control channel transmitted in control channel resource collection, described the Two part down control channel resources set are used for transmission the down control channel of the UE-specific of dispatch terminal.

Optionally, the third determination unit includes：

5th determination subelement, for selecting the mapping pattern in predefined DMRS mapping patterns set to transmit DMRS, And the instruction information notice terminal of the DMRS mapping patterns by being carried in mib information receives first part's down control channel resources DMRS mapping patterns and/or time-domain position used in the down control channel transmitted in set, the DMRS mapping patterns refer to Show mapping pattern numbers of the information instruction DMRS in RB；Or

6th determination subelement, the DMRS mapping patterns transmission for being used according to PBCH is in first part's downlink control letter DMRS used in the down control channel transmitted in road resource collection；Or

7th determination subelement, for the DMRS mapping patterns transmission according to protocol definition in first part's downlink control letter DMRS used in the down control channel transmitted in road resource collection.

Optionally, the 4th determination unit includes：

8th determination subelement, for selecting the mapping pattern in predefined DMRS mapping patterns set to transmit DMRS, And the indication signaling by being carried in high-level signaling notifies to pass in its reception second part down control channel resources set of terminal DMRS mapping patterns used in defeated down control channel；Or

9th determination subelement, for selecting the mapping pattern in predefined DMRS mapping patterns set to transmit DMRS, And it is used by the down control channel that physical layer signaling notice is transmitted in second part down control channel resources set DMRS mapping patterns；Or

Tenth determination subelement, the DMRS mapping patterns transmission for being used according to PBCH is controlled in second part downlink to be believed DMRS used in the down control channel transmitted in road resource collection；Or

11st determination subelement, for according to the resource mapping method of down control channel and/or the industry of scheduling data Service type and/or transmitting scene select in predefined DMRS mapping patterns set, are provided in second part down control channel DMRS used in the down control channel transmitted in the set of source.

A technical solution in above-mentioned technical proposal has the following advantages that or advantageous effect：Terminal can be sent out by base station The display signaling and/or implicit mode sent know that terminal receives demodulated reference signal transmissions figure used in down control channel Sample and/or time-domain position are realized DMRS mapping patterns used in flexible configurating downlink control channel transmission, are adapted to different Transmitting scene, and the resource overhead of DMRS can be controlled.

Description of the drawings

Fig. 1 is that descending pilot frequency maps schematic diagram；

Fig. 2 is the DMRS pattern schematic diagrames demodulated for EPDCCH；

Fig. 3 is the flow chart of the method for the determination down control channel DMRS resources of one embodiment of the present of invention；

Fig. 4 is the schematic diagram of the down control channel DMRS patterns (FDM) of one embodiment of the present of invention；

Fig. 5 is the schematic diagram of the down control channel DMRS patterns (CDM) of one embodiment of the present of invention；

Fig. 6 is the flow chart of the method for the determination down control channel DMRS resources of an alternative embodiment of the invention；

Fig. 7 is the block diagram of the device of the determination down control channel DMRS resources of one embodiment of the present of invention；

Fig. 8 is the block diagram of the device of the determination down control channel DMRS resources of an alternative embodiment of the invention；

Fig. 9 is the structure diagram of the terminal of one embodiment of the present of invention；

Figure 10 is the structure diagram of the base station of one embodiment of the present of invention.

Specific implementation mode

The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although showing the disclosure in attached drawing Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure Completely it is communicated to those skilled in the art.

Mobile Internet is overturning conventional mobile communications business model, provides unprecedented usage experience to the user, Profound influence the every aspect of people's Working Life.Mobile Internet will push the further of human society information interaction approach Upgrading provides the abundanter business experiences such as augmented reality, virtual reality, ultra high-definition (3D) video, mobile cloud to the user.It moves The further development of dynamic internet will bring the following mobile flow to surpass thousand times of growths, push new the one of mobile communication technology and industry Wheel is changed.And Internet of Things then extends the service range of mobile communication, and people and object, object and object intelligence are extended to from person to person's communication Interconnection, makes mobile communication technology infiltrate into more wide industry and field.Future, portable medical, car networking, smart home, Industry Control, environmental monitoring etc. will push Internet of Things application explosive growth, number that will access network with hundred billion equipment, realize Really " all things on earth interconnection ".Meanwhile the equipment connection of magnanimity can also be brought newly with diversified internet of things service to mobile communication Technological challenge.

With the lasting appearance of new business demand and abundant, proposing higher performance to future mobile communication system needs It asks, such as higher peak rate, better user experience rate, smaller time delay, higher reliability, higher frequency spectrum effect Rate and higher energy consumption efficiency etc., and need that more users is supported to access and use various businesses type.Terminal may need A variety of transmission modes, several scenes, type of service with a greater variety are supported simultaneously.The transmission of down control channel also needs full The diversity and flexibility demand of sufficient transmission mode, scene and type.Further, it is different from down control channel in LTE Fixed pilot tone pattern, different transmission modes may need different pilot densities in future mobile communication system.

The PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) of LTE system is used In carrying scheduling information and other control information.Can there are multiple PDCCH, control zone in the control area of each downlink subframe The size in domain is by PCFICH (Physical Control Format Indicator Channel, physical control format instruction letter Road) it determines, account for 1~4 OFDM symbol.The demodulation of PDCCH is based on CRS (Cell Reference Signal, cell reference letter Number), transmission port is antenna port 0-3.Pilot tone pattern under Normal CP is as shown in Figure 1.

The data area of EPDCCH (enhancing Physical Downlink Control Channel) in subframe is transmitted, and cannot occupy PDCCH Transmission space.The demodulation of EPDCCH is based on DMRS, and transmission antenna port is antenna port 107-110.EPDCCH is used When localized mapping (part mapping), in relevant demodulated signal transmission port and PRB (Physical Resource Block) ECCE (Enhanced Control Channel Element) number, ECCE number of the channel occupancy, what which occupied The lowest number of ECCE and the RNTI (radio network temporary identifier) of dispatch terminal are related；EPDCCH uses distributed When mapping, AP { 107 108 } or { 107 109 } are used alternatingly.

In existing LTE system, reference signal pattern is fixed used in down control channel demodulation.Although CRS Expense is relatively low, but must be transmitted on full bandwidth；The DMRS of EPDCCH is distributed in entire time domain.In following wireless communication In system, the flexibility of diversity and the information transmission of business will be significantly increased.The required ginseng under different scenes Signal density is examined, used transmission technology etc. may also be different.If still using fixed DMRS pattern, (DMRS schemes Sample), it will the flexibility for limiting transmission, increasing the resource overhead of pilot tone reduces spectrum efficiency, and can influence forward compatibility.

Referring to Fig. 3, the flow of the method for determining down control channel DMRS resources is shown in figure, is as follows：

Step 301, the display signaling that terminal is sent by base station and/or implicit mode know that terminal receives downlink control Demodulated reference signal transmissions pattern and/or time-domain position used in channel.

Above-mentioned demodulated reference signal transmissions pattern (being referred to as DMRS pattern) includes：Time-domain position, frequency domain position Set, redirect (hopping) mode etc., it is certainly not limited to this.

It should be noted that DMRS pattern can be the pattern of an OFDM symbol in the present embodiment.

Above-mentioned time-domain position is the time-domain position of base station instruction DMRS transmission.

In the present embodiment, in step 301, the explicit signaling and/or implicit mode that terminal is notified by base station obtain Know that terminal receives demodulation ginseng used in the down control channel demodulation transmitted in first part's down control channel resources set Examine signal pattern and/or time-domain position, wherein first part's down control channel resources set is used for transmission common control channel And/or the down control channel of terminal-specific (UE-specific).

In the present embodiment, the demodulated reference signal pattern includes at least port used in demodulated reference signal transmissions Number, occupies the position of resource, and is that base station understands consistent resource impact rule with end side.

Above-mentioned demodulated reference signal pattern is the continuous M OFDM symbols in the time domain of resource occupied by reference signal transmission Number, the mapping ruler on frequency domain in 12 subcarrier (subcarrier) ranges, wherein M is the positive integer more than or equal to 1, at this It may be assumed that M=1 in embodiment.

It should be noted that above-mentioned demodulated reference signal pattern is base station side and the mapping ruler that end side all knows.

In the present embodiment, different port numbers has different DMRS mapping patterns, it is assumed that down control channel It is X to transmit the port number used, and the offset that identical port maps in a RB is Y, and each port accounts in a RB Resource unit number is Z, wherein X, Y, Z are the positive integer more than or equal to 1.The numerical value of each group (X Y Z) determines one Kind DMRS mapping patterns.

Such as predefine three kinds of DMRS mapping patterns, X=1/2/4, Y=6, Z=2, then port numbering be assumed to be AP0- AP3.According to the multiplex mode between different port, such as FDM, CDM, as shown in Figure 4 and Figure 5.The mode of CDM, resource-niche in Fig. 5 The DMRS for setting coincidence is distinguished by way of being superimposed orthogonal sequence.Certainly, the value of X, Y, Z can be predefined any Value, it is not limited to example herein.

In the present embodiment, in step 301, the explicit signaling that terminal can be sent by base station obtains current downlink control DMRS mapping patterns used in channel demodulation processed.

For example, base station can carry DMRS mapping patterns instruction information in mib information.Optionally, the DMRS mappings Pattern indicates specific mapping pattern numbers of the information instruction DMRS in RB.

As shown in Fig. 4 or Fig. 5, it is assumed that the port number that DMRS transmission is supported is X=1/2/4, then DMRS reflecting in RB Corresponding three kinds of patterns are penetrated, the instruction information that 2bit is carried in first part's Downlink Control Information indicates currently used DMRS figures Sample.Such as 00 indicate DMRS mapping patterns be single port map, 01 indicate DMRS mapping patterns be two-port mapping, 10 expressions DMRS mapping patterns are four port mappings.

In the present embodiment, after terminal receives the DMRS mapping patterns instruction information, know down control channel institute DMRS map informations in the RB of occupancy.

Further, the time domain instruction information of DMRS mapping patterns can also be carried in mib information.The time domain indicates information It indicates to map resource with the presence or absence of DMRS in OFDM symbol.

It illustrates：Time-domain resource shared by first part's down control channel resources set is up to P OFDM symbol.

Base station carries ceil (log in mib information₂P) bit information is indicated from first part's down control channel resources collection Close in first OFDM symbol come into existence DMRS mapping resource continuous OFDM symbol number.

Assuming that P=3, then need ceil (log₂3) there are the continuous OFDM symbols that DMRS maps resource for=2bit information instruction Number number.Assuming that instruction bit is 10, then it represents that in first part's down control channel resources set, in the first two OFDM symbol There are DMRS to map resource, and mapping pattern is determined by aforementioned DMRS mapping patterns instruction information.

Alternatively, base station carries P bit information in mib information indicates that there are DMRS to reflect by way of bitmap (bitmap) Penetrate the OFDM symbol of resource.

Assuming that P=3, then needing 3bit instruction information instructions, there are the OFDM symbols that DMRS maps resource.Such as the finger Show that information is 101, then it represents that exist on first in first part's down control channel resources set and third symbol DMRS maps resource.DMRS mapping patterns in first symbol and third symbol are indicated to believe by aforementioned DMRS mapping patterns Breath determines.

In the present embodiment, in step 301, terminal obtains the demodulation of current downlink control channel by implicit and is made DMRS mapping patterns and/or time-domain position.

DMRS mapping graphs used in the down control channel transmitted in first part's down control channel resources set Sample is identical as DMRS mapping patterns used in PBCH.

DMRS mapping graphs used in the down control channel transmitted in first part's down control channel resources set Sample is by protocol definition (as shown in Fig. 4 or Fig. 5).

Further, the time domain instruction information of DMRS mapping patterns can also be carried in mib information.

In the step 301 of the present embodiment, explicit signaling and/or implicit mode that terminal is notified by base station know end End receives demodulation reference letter used in the down control channel demodulation transmitted in second part down control channel resources set Number transmission pattern and/or time-domain position.

In the present embodiment, the demodulated reference signal transmissions pattern includes at least port used in reference signal transmission Number, occupies the position of resource, and is that base station understands consistent resource impact rule with end side.

Optionally, the demodulated reference signal pattern is resource occupied by reference signal transmission continuous M in the time domain OFDM symbol, the mapping ruler on frequency domain within the scope of 12 subcarrier, wherein M are the positive integer more than or equal to 1.In this reality It applies in example, M=1.

It should be noted that the reference signal pattern is base station side and the mapping ruler that end side all knows.

Different port numbers has different mapping patterns, it is assumed that the port number that the transmission of down control channel uses For X, the offset that identical port maps in a RB is Y, and the resource unit number that each port occupies in a RB is Z.X, Y, Z are the positive integer more than or equal to 1.The numerical value of each group (X Y Z) determines a kind of DMRS mapping patterns.

Such as predefine three kinds of DMRS mapping patterns, X=1/2/4, Y=6, Z=2, then port numbering be assumed to be AP0- AP3.According to the multiplex mode between different port, such as FDM (frequency division multiplex), CDM (code division multiplex), such as Fig. 4 and Shown in Fig. 5.The mode of CDM in Fig. 5, the DMRS that resource location overlaps are distinguished by way of being superimposed orthogonal sequence.

Certainly in the present embodiment and unlimited it should be noted that the value of X, Y, Z can be predefined any values Determine the value of X, Y, Z.

In the present embodiment, terminal obtains terminal by the explicit signaling that base station is sent and receives second part downlink control letter DMRS mapping patterns and/or time-domain position used in the down control channel transmitted in road resource collection.

For example, under the second part carried in the high-level signaling (such as RRC signaling) that terminal is sent according to base station The used DMRS mapping patterns instruction information of down control channel transmitted in row control channel resource collection, determines that terminal receives DMRS mapping patterns and/or time domain used in the down control channel transmitted in second part down control channel resources set Position.

Specific mapping pattern numbers of the DMRS mapping patterns instruction information instruction DMRS in RB.

In the present embodiment, the second part down control channel carried in the physical layer signaling that terminal is sent according to base station DMRS mapping patterns used in the down control channel transmitted in resource collection indicate information, determine that terminal receives second part Downlink Control Information used DMRS mapping patterns and/or time-domain position when transmitting.

In the present embodiment, Downlink Control Information consists of two parts, and two parts Downlink Control Information is in different time-frequencies Transmitted over resources, first part's Downlink Control Information include the relevant information of second part Downlink Control Information.

It is notified using fixed DMRS mapping patterns and/or base station when first part's Downlink Control Information is sent DMRS mapping patterns, terminal need to be properly received first part's Downlink Control Information first, then obtain second part downlink control The relevant information of information processed.

It is reflected comprising DMRS used in the transmission of second part Downlink Control Information in first part's Downlink Control Information Penetrate pattern instruction information.

As shown in Fig. 4 or Fig. 5, it is assumed that the port number of DMRS transmission is up to X=4, then mappings pair of the DMRS in RB Three kinds of patterns, the instruction information that 2bit is carried in first part's Downlink Control Information are answered to indicate currently used DMRS patterns.Example If 00 indicates that DMRS mapping patterns map for single port, 01 indicates that DMRS mapping patterns map for two-port, and 10 expression DMRS reflect It is four port mappings to penetrate pattern.

After terminal receives the DMRS mapping patterns instruction information, know shared by carrying second part Downlink Control Information DMRS map informations in RB.

Further, DMRS mapping patterns are carried in the higher layer signalling message or first part's Downlink Control Information Time domain indicates information.The time domain indicates to map resource with the presence or absence of DMRS in information instruction OFDM symbol.

It is assumed that the time-domain resource shared by second part down control channel resources set is up to P OFDM symbol.

Base station carries ceil in high-level signaling (such as RRC signaling) or first part's Downlink Control Information (log₂P) bit information instruction first OFDM symbol out of second part down control channel resources set comes into existence DMRS Map the continuous OFDM symbol number of resource.Assuming that P=3, then need ceil (log₂3)=there are DMRS to reflect for the instruction of 2bit information Penetrate the continuous OFDM symbol number of resource.Assuming that instruction bit is 10, then it represents that first part's down control channel resources set Interior, there are DMRS to map resource in the first two OFDM symbol, and mapping pattern is determined by aforementioned DMRS mapping patterns instruction information.

Alternatively, base station carries P in high-level signaling (such as RRC signaling) or first part's Downlink Control Information Bit information indicates that there are the OFDM symbols that DMRS maps resource by way of bitmap.Assuming that P=3, then need 3bit to indicate There are the OFDM symbols that DMRS maps resource for information instruction.Such as the instruction information is 101, then it represents that first part's downlink control There are DMRS mapping resources on third symbol by first in channel resource set processed.It is accorded in first symbol and third DMRS mapping patterns in number are determined by aforementioned DMRS mapping patterns instruction information.

In the present embodiment, terminal obtains terminal by implicit mode and receives second part down control channel resources collection DMRS mapping patterns and/or time-domain position used in the down control channel transmitted in closing.

DMRS mapping graphs used in the down control channel transmitted in second part down control channel resources set Sample is identical as DMRS mapping patterns used in PBCH.

DMRS mapping graphs used in the down control channel transmitted in second part down control channel resources set Sample is determined according to predefined rule used in current downlink control channel by protocol definition (as shown in Fig. 4 or Fig. 5), base station DMRS mapping patterns (such as mapping mode, transmitting scene, type of service etc.).

The embodiment of the present invention can DMRS mapping patterns used in flexible configurating downlink control channel transmission, adapt to Different transmitting scenes, and the resource overhead of DMRS can be controlled.

Referring to Fig. 6, the flow of the method for determining down control channel DMRS resources is shown in figure, is as follows：

Step 601, base station are by showing that signaling and/or implicit mode notify terminal to receive down control channel and used Demodulated reference signal transmissions pattern and/or time-domain position.

Above-mentioned demodulated reference signal transmissions pattern (being referred to as DMRS pattern) refers to the figure transmitted needed for DMRS Sample (pattern) includes：Time-domain position, frequency domain position redirect (hopping) mode, are also not limited to this certainly.

In the step 601 of the present embodiment, base station notifies terminal to receive first part by explicit or implicit mode DMRS mapping patterns and/or time-domain position used in the down control channel transmitted in down control channel resources set.

In the present embodiment, the mapping pattern in base station selected predefined DMRS mapping patterns set transmits DMRS, and Terminal is notified to receive the downlink control transmitted in first part's down control channel resources set by the indication signaling carried in MIB DMRS mapping patterns and/or time-domain position used in channel processed.

In the present embodiment, the down control channel transmitted in base station instruction first part down control channel resources set Used DMRS mapping patterns number.

In the present embodiment, the DMRS mapping patterns that base station is used according to PBCH are transmitted in first part's down control channel DMRS used in the down control channel transmitted in resource collection.

In the present embodiment, base station is transmitted according to the DMRS mapping patterns of protocol definition in first part's down control channel DMRS used in the down control channel transmitted in resource collection.

In the step 601 of the present embodiment, base station is notified by explicit or implicit mode in second part downlink control DMRS mapping patterns and/or time-domain position used in the down control channel transmitted in channel resource set processed.

In the present embodiment, the mapping pattern in base station selected predefined DMRS mapping patterns set transmits DMRS, and By the indication signaling that is carried in high-level signaling notify terminal its transmitted in second part down control channel resources set DMRS mapping patterns used in down control channel.

In the present embodiment, the mapping pattern in base station selected predefined DMRS mapping patterns set transmits DMRS, and DMRS used in the down control channel transmitted in second part down control channel set by physical layer signaling notice Mapping pattern.

In the present embodiment, the DMRS mapping patterns that base station is used according to PBCH are transmitted in second part down control channel DMRS used in the down control channel transmitted in resource collection.

In the present embodiment, base station is according to the resource mapping method of down control channel and/or the service class of scheduling data Type and/or transmitting scene select in predefined DMRS mapping patterns set in second part down control channel resources set DMRS mapping patterns used in the down control channel of middle transmission.

Embodiment 1：Assuming that the down control channel transmitted in first part's down control channel resources set is most branched 4 DMRS ports are held, and the port number supported is 1,2,4.And assume that a port RE number shared in a RB is 2.Can be frequency division or code point between different antenna ports.Then DMRS mapping patterns can be as shown in Figure 4 and Figure 5.Base station Can be according to channel conditions, transmission demand etc. selects down control channel to transmit institute in predefined DMRS mapping patterns set The DMRS mapping patterns used.For example, needing that using the scene of precoder cycling, base station side single port can be selected DMRS mapping patterns；The scene using SFBC is being needed, two-port or the DMRS mapping patterns of four ports can be selected； Low bit- rate scene can select the DMRS mapping patterns of four ports.The selection of DMRS mapping patterns is more flexible, with transmission demand Also it more matches, helps to improve system performance.

Base station indicates that information is indicated in first part's down control channel resources by the DMRS mapping patterns carried in MIB The DMRS mapping patterns that the down control channel transmitted in set uses.Such as single port mapping pattern is 1, two-port mapping graph Sample is 2, and four port mapping patterns are 4.Then the DMRS mapping patterns instruction information needs 2bit information.I.e. 00 indicates downlink control DMRS mapping patterns used in channel processed are single port, and 01 is expressed as two-port, and 10 are expressed as four ports.Terminal receives this After indicating information, it is determined that form the mapping position of DMRS in each RB of down control channel.

Further, base station can be carried in MIB DMRS time domain map information.Assuming that first part's downlink control Channel resource set occupies N number of OFDM symbol in the time domain, it is assumed herein that N=3.Then base station can be indicated by the time domain of DMRS There are the DMRS OFDM symbol numbers mapped or specific numbers, such as the following two kinds mode for information instruction：

Pass through ceil (log₂3) in=2bit information instruction first part down control channel resources set, there are DMRS The OFDM symbol number of mapping.Such as 00 indicate only in first part's down control channel resources set first OFDM symbol There are DMRS mappings on number；01 indicates that there are DMRS mappings in the first two OFDM symbol；10 indicate to deposit in first three OFDM symbol It is mapped in DMRS.

Alternatively, being indicated by way of bitmap in the first hair part down control channel resources set, there are DMRS to reflect The OFDM symbol penetrated.Such as information is indicated by 3bit, as shown in table 1：

Table 1：The time-domain information of DMRS mappings is notified by bitmap

100	There are DMRS mappings in first OFDM symbol
		110	There are DMRS mappings in first and second OFDM symbol
111	There are DMRS mappings in first/second/third OFDM symbol
		101	There are DMRS mappings in first and third OFDM symbol
010	There are DMRS mappings in second OFDM symbol
		000 001 011	Reserved

Certainly, the DMRS mapping pattern set of other forms is not precluded in the present embodiment.

Embodiment 2：The down control channel transmitted in first part's down control channel resources set makes in transmission DMRS mapping patterns are identical as DMRS mapping patterns used in PBCH transmission.Terminal is after being successfully received PBCH, just DMRS mapping graphs used in down control channel that it is transmitted in first part's down control channel resources set are known Sample.Such as DMRS mapping patterns used in PBCH transmission map for single port, then in first part's down control channel resources The down control channel transmitted in set uses single port DMRS mapping patterns.Alternatively, being provided in first part's down control channel The down control channel transmitted in the set of source, the DMRS mapping patterns used are by protocol definition.For example, by using single port DMRS mapping patterns either two-port or four ports.

Further, base station can be indicated by MIB under being transmitted in first part's down control channel resources set The resources of DMRS in the time domain used in row control channel.Specific as described in Example 1, details are not described herein.

Embodiment 3：Assuming that the down control channel transmitted in second part down control channel resources set is most branched 4 DMRS ports are held, and the port number supported is 1,2,4.And assume that a port RE number shared in a RB is 2.Can be frequency division or code point between different antenna ports.Then DMRS mapping patterns can be as shown in Figure 4 and Figure 5.Base station Can be according to channel conditions, transmission demand etc. selects down control channel to transmit institute in predefined DMRS mapping patterns set The DMRS mapping patterns used.For example, needing that using the scene of precoder cycling, base station side single port can be selected DMRS mapping patterns；The scene using SFBC (Space Frequency Block Code, space-frequency block codes) is being needed, it can be with Select two-port or the DMRS mapping patterns of four ports；In low bit- rate scene, the DMRS mapping patterns of four ports can be selected. The selection of DMRS mapping patterns is more flexible, is also more matched with transmission demand, helps to improve system performance.

Base station indicates that information instruction exists by the DMRS mapping patterns carried in high-level signaling (such as RRC signaling) The DMRS mapping patterns that the down control channel transmitted in second part down control channel resources set uses.Such as single port Mapping pattern is 1, and two-port mapping pattern is 2, and four port mapping patterns are 3.Then the DMRS mapping patterns instruction information needs Want 2bit information.I.e. 00 indicates that DMRS mapping patterns used in down control channel are single port, and 01 is expressed as two-port, 10 It is expressed as four ports.After terminal receives the instruction information, it is determined that form reflecting for DMRS in each RB of down control channel Penetrate position.

Further, base station can carry mappings of the DMRS in time domain in high-level signaling (such as RRC signaling) Information.Assuming that second part down control channel resources set occupies N number of OFDM symbol in the time domain, it is assumed herein that N=3.Then Base station can indicate information instruction by the time domain of DMRS, and there are the DMRS OFDM symbol numbers mapped or specific numbers, such as The following two kinds mode：

Pass through ceil (log₂3) in=2bit information instruction second part down control channel resources set, there are DMRS The OFDM symbol number of mapping.Such as 00 indicate only in second part down control channel resources set first OFDM symbol There are DMRS mappings on number；01 indicates that there are DMRS mappings in the first two OFDM symbol；10 indicate to deposit in first three OFDM symbol It is mapped in DMRS.

Alternatively, being indicated by way of bitmap in second part down control channel resources set, there are DMRS mappings OFDM symbol.Such as information is indicated by 3bit.Specific mapping form is as shown in table 1.

Embodiment 4：Assuming that the Downlink Control Information transmitted in second part down control channel resources set is by two It is grouped as, i.e. first part's Downlink Control Information and second part Downlink Control Information.Two parts Downlink Control Information exists respectively Different transmitted over resources.Transmission instruction letter comprising second part Downlink Control Information in first part's Downlink Control Information Breath.Terminal needs to receive first part Downlink Control Information first, then according to being carried in first part's Downlink Control Information Indicate that information receives second part Downlink Control Information.The DMRS mapping patterns used when first part's Downlink Control Information transmission Notified by base station or used fixed DMRS mapping patterns.

Assuming that second part Downlink Control Information could support up 4 DMRS ports, and the port number supported in transmission It is 1,2,4.And assume that a port RE number shared in a RB is 2.It can be frequency division between different antenna ports Or code point.Then DMRS mapping patterns can be as shown in Figure 4 and Figure 5.Base station can be according to channel conditions, and transmission demand etc. is pre- DMRS mapping patterns used in down control channel transmission are selected in the DMRS mapping pattern set of definition.For example, needing Using the scene of precoder cycling, base station side can select the DMRS mapping patterns of single port；It is needing to use SFBC Scene, two-port or the DMRS mapping patterns of four ports can be selected；In low bit- rate scene, four ports can be selected DMRS mapping patterns.The selection of DMRS mapping patterns is more flexible, is also more matched with transmission demand, helps to improve systematicness Energy.

Base station indicates that information indicates second part by the DMRS mapping patterns carried in first part's Downlink Control Information Downlink Control Information used DMRS mapping patterns when transmitting.Such as single port mapping pattern is 1, two-port mapping pattern is 2, four port mapping patterns are 4.Then the DMRS mapping patterns instruction information needs 2bit information.I.e. 00 indicates downlink control letter DMRS mapping patterns used in road are single port, and 01 is expressed as two-port, and 10 are expressed as four ports.Terminal receives the instruction After information, it is determined that form the mapping position of DMRS in each RB of down control channel.

Further, base station can indicate second part Downlink Control Information in transmission, the time-domain position of DMRS mappings. Specific method is as described in Example 1, and details are not described herein.

Embodiment 5：The down control channel transmitted in second part down control channel resources set makes in transmission DMRS mapping patterns are identical as DMRS mapping patterns used in PBCH transmission.Terminal is after being successfully received PBCH, just DMRS mapping graphs used in down control channel that it is transmitted in first part's down control channel resources set are known Sample.Such as DMRS mapping patterns used in PBCH transmission map for single port, then in second part down control channel resources The down control channel transmitted in set uses single port DMRS mapping patterns.

Further, base station can indicate to transmit in second part down control channel resources set by high-level signaling Down control channel used in the resources of DMRS in the time domain.Specific as described in Example 1, details are not described herein.

Embodiment 6：Used in the down control channel transmitted in second part down control channel resources set DMRS mapping patterns determine current downlink control letter by protocol definition (as shown in Fig. 4 or Fig. 5), base station according to predefined rule DMRS mapping patterns used in road (such as mapping mode, transmitting scene, type of service etc.).Such as when localized transmission Using the DMRS mapping patterns of two-port, using the DMRS mapping patterns of single port when distributed is transmitted；Such as eMBB Compared with the DMRS mapping patterns of low-density when (enhancing mobile broadband), using higher when URLLC (low time delay, high reliable communication) business The DMRS mapping patterns of density.

Terminal when receiving down control channel, also according to the mapping rules of down control channel, transmitting scene, Type of service etc. determines currently used DMRS mapping patterns.

Based on same inventive concept, a kind of dress of determining down control channel resources is additionally provided in the embodiment of the present invention It sets, due to the method phase of principle and determining down control channel resources in Fig. 3 of the embodiment of the present invention that the device solves the problems, such as Seemingly, therefore the implementation of the device may refer to the implementation of method, repeat place and no longer apply to state.

Referring to Fig. 7, show that a kind of device of determining down control channel resources, the device 700 include in figure：

First determining module 701, display signaling and/or implicit mode for being sent by base station know that terminal receives Demodulated reference signal transmissions pattern and/or time-domain position used in down control channel.

With continued reference to Fig. 7, in the present embodiment, first determining module 701 includes：

First determination unit 7011, display signaling and/or implicit mode for being sent by base station know that terminal connects Receive demodulated reference signal figure used in the down control channel demodulation transmitted in first part's down control channel resources set Sample and/or time-domain position, wherein first part's down control channel resources set be used for transmission common control channel and/ Or the down control channel of terminal-specific UE-specific；And/or

Second determination unit 7012, display signaling and/or implicit mode for being sent by base station know that terminal connects Receive demodulated reference signal figure used in the down control channel demodulation transmitted in second part down control channel resources set Sample and/or time-domain position, wherein the second part down control channel resources set is used for transmission the UE- of dispatch terminal The down control channel of specific.

With continued reference to Fig. 7, in the present embodiment, first determination unit 7011 includes：

First determination subelement 70111, the display signaling for being sent by base station know that terminal receives under first part The mapping pattern of demodulated reference signal DMRS used in the down control channel demodulation transmitted in row control channel resource collection And/or time-domain position；And/or

Second determination subelement 70112 knows that terminal receives first part's down control channel for passing through implicit The mapping pattern and/or time-domain position of DMRS used in the down control channel demodulation transmitted in resource collection.

In the present embodiment, the display signaling is to carry the Master Information Block mib information of DMRS mapping patterns instruction information, Mapping pattern numbers of the DMRS mapping patterns instruction information instruction DMRS in resource block RB.

In the present embodiment, the time domain instruction information of DMRS mapping patterns, the time domain are also carried in the mib information It indicates to map resource with the presence or absence of DMRS in information instruction OFDM symbol.

In the present embodiment, if the time-domain resource shared by first part's down control channel resources set is up to P When OFDM symbol,

In the present embodiment, the down control channel transmitted in first part's down control channel resources set is used DMRS mapping patterns it is identical as DMRS mapping patterns used in PBCH；Or

With continued reference to Fig. 7, in the present embodiment, second determination unit 7012 includes：

Third determination subelement 70121, the display signaling for being sent by base station know that terminal receives under second part DMRS mapping patterns and/or time-domain position used in the down control channel demodulation transmitted in row control channel resource collection； And/or

4th determination subelement 70122, for knowing that terminal receives second part downlink control letter by implicit mode DMRS mapping patterns and/or time-domain position used in the down control channel transmitted in road resource collection.

In the present embodiment, the third determination subelement 70121 is further used for：The high-level signaling sent according to base station The terminal of middle carrying receives DMRS used in the down control channel transmitted in second part down control channel resources set Mapping pattern indicates information, determines used in the down control channel transmitted in second part down control channel resources set DMRS mapping patterns；And/or

In the present embodiment, DMRS mapping patterns are carried in the high-level signaling or first part's Downlink Control Information Time domain indicates information, and whether there is DMRS in the time domain instruction information instruction OFDM symbol maps resource.

In the present embodiment, if the time-domain resource shared by the second down control channel resources set is up to P OFDM When symbol,

In the present embodiment, the demodulated reference signal pattern includes at least port used in demodulated reference signal transmissions Number, the position and base station for occupying resource understand consistent resource impact rule with terminal.

In the present embodiment, the demodulated reference signal pattern is that resource occupied by reference signal transmission is continuous in the time domain M orthogonal frequency division multiplex OFDM symbol, the resource impact rule on frequency domain within the scope of 12 subcarrier subcarrier, In, M is the positive integer more than or equal to 1.

In the present embodiment, different port numberings has different DMRS mapping patterns, if the biography of down control channel The defeated port number used is X, and the offset offset that identical port maps in a RB is Y, and each port is in a RB The resource unit number of occupancy is Z, then the numerical value of each group (X Y Z) determines a kind of DMRS mapping patterns, and X, Y, Z is to be more than Positive integer equal to 1.

In the present embodiment, the down control channel transmitted in second part down control channel resources set is used DMRS mapping patterns it is identical as DMRS mapping patterns used in PBCH；Or

Based on same inventive concept, a kind of dress of determining down control channel resources is additionally provided in the embodiment of the present invention It sets, due to the method phase of principle and determining down control channel resources in Fig. 6 of the embodiment of the present invention that the device solves the problems, such as Seemingly, therefore the implementation of the device may refer to the implementation of method, repeat place and no longer apply to state.

Referring to Fig. 8, a kind of device of determining down control channel resources is shown in figure, which is characterized in that described device 800 include：

Second determining module 801, for by showing that signaling and/or implicit mode notify terminal to receive downlink control letter Demodulated reference signal transmissions pattern and/or time-domain position used in road.

With continued reference to Fig. 8, the second determining module 801 includes：

Third determination unit 8011, for by showing that signaling and/or implicit mode notify terminal to receive first part DMRS mapping patterns and/or time-domain position used in the down control channel transmitted in down control channel resources set, institute It states first part's down control channel resources set and is used for transmission common control channel and/or terminal-specific UE-specific Down control channel；Or

4th determination unit 8012, for by showing that signaling and/or implicit mode notify terminal to receive second part DMRS mapping patterns and/or time-domain position used in the down control channel transmitted in down control channel resources set, institute State the down control channel that second part down control channel resources set is used for transmission the UE-specific of dispatch terminal.

In the present embodiment, third determination unit 8011 includes：

5th determination subelement 80111, for selecting the mapping pattern in predefined DMRS mapping patterns set to transmit DMRS, and the instruction information notice terminal of the DMRS mapping patterns by being carried in mib information receives first part's downlink control letter DMRS mapping patterns and/or time-domain position used in the down control channel transmitted in road resource collection, the DMRS mappings Pattern indicates mapping pattern numbers of the information instruction DMRS in RB；Or

6th determination subelement 80112, the DMRS mapping patterns for being used according to PBCH are transmitted in first part's downlink DMRS used in the down control channel transmitted in control channel resource collection；Or

7th determination subelement 80113, for being transmitted in first part's downlink according to the DMRS mapping patterns of protocol definition DMRS used in the down control channel transmitted in control channel resource collection.

In the present embodiment, the time domain instruction information of DMRS mapping patterns is also carried in the mib information.

With continued reference to Fig. 8, the 4th determination unit 8012 includes：

8th determination subelement 80121, for selecting the mapping pattern in predefined DMRS mapping patterns set to transmit DMRS, and the indication signaling by being carried in high-level signaling notifies its reception second part down control channel resources set of terminal DMRS mapping patterns used in the down control channel of interior transmission；Or

9th determination subelement 80122, for selecting the mapping pattern in predefined DMRS mapping patterns set to transmit DMRS, and the down control channel institute for notifying to transmit in second part down control channel resources set by physical layer signaling The DMRS mapping patterns used；Or

Tenth determination subelement 80123, the DMRS mapping patterns for being used according to PBCH are transmitted in second part downlink DMRS used in the down control channel transmitted in control channel resource collection；Or

11st determination subelement 80124, for the resource mapping method and/or scheduling data according to down control channel Type of service and/or transmitting scene selected in predefined DMRS mapping patterns set, second part downlink control believe DMRS used in the down control channel transmitted in road resource collection.

The embodiment of the present invention additionally provides a kind of terminal, including first memory, first processor and is stored in first and deposits On reservoir and the computer program that can be run on first processor, the first processor execute real when the computer program The step in the method for down control channel DMRS resources is now determined as described in Figure 3.

Referring to Fig. 9, show that a kind of structure of terminal, the terminal include first memory, first processor and be stored in On first memory and the computer program that can be run on first processor, the first processor execute real when described program Existing following steps：The display signaling and/or implicit mode sent by base station knows that terminal receives down control channel and made Demodulated reference signal transmissions pattern and/or time-domain position.

In fig.9, bus architecture (being represented with the first bus 900), the first bus 900 may include any number of mutual The bus and bridge of connection, the first bus 900 will include the one or more processors and first represented by general first processor 901 The various circuits for the memory that memory 904 represents link together.First bus 900 can also will such as peripheral equipment, steady Various other circuits of depressor and management circuit or the like link together, and these are all it is known in the art, therefore, It will not be further described herein.First bus interface 903 carries between the first bus 900 and the first transceiver 902 For interface.First transceiver 902 can be an element, can also be multiple element, such as multiple receivers and transmitter, carry For the unit for being communicated over a transmission medium with various other devices.Such as：First transceiver 902 receives outer from other equipment Portion's data.First transceiver 902 is used for that treated that data are sent to other equipment by first processor 901.Depending on calculating The property of system can also provide user interface 905, such as keypad, display, loud speaker, microphone, control stick.

First processor 901 is responsible for the first bus 900 and common processing, and general operation system is run as described in aforementioned System.And first memory 904 can be used to store the used data when executing operation of first processor 901.

Optionally, first processor 901 can be CPU, ASIC (Application Specific Integrated Circuit, application-specific integrated circuit), FPGA (Field-Programmable Gate Array, field programmable gate array) or CPLD (Complex Programmable Logic Device, Complex Programmable Logic Devices).

The embodiment of the present invention additionally provides a kind of base station, including second memory, second processor and is stored in second and deposits On reservoir and the computer program that can be run in second processor, the second processor execute real when the computer program The step in the method for down control channel DMRS resources is now determined as described in Figure 6.

Referring to Figure 10, show that a kind of structure of base station, the receiving terminal include second memory, second processor and storage On second memory and the computer program that can be run in second processor, when the second processor executes described program Realize following steps：It is demodulated by showing that signaling and/or implicit mode notify terminal to receive used in down control channel Reference signal transmission pattern and/or time-domain position.

In Fig. 10, bus architecture (being represented with the second bus 1000), the second bus 1000 may include any amount Interconnection bus and bridge, the second bus 1000 will include the one or more processors represented by general second processor 1001 The various circuits of the memory represented with second memory 1004 link together.Second bus 1000 can also will be such as peripheral Various other circuits of equipment, voltage-stablizer and management circuit or the like link together, these are all well known in the art , therefore, it will not be further described herein.Second bus interface 1003 is in the second bus 1000 and the second transceiver Interface is provided between 1002.Second transceiver 1002 can be an element, can also be multiple element, such as multiple receivers And transmitter, the unit for being communicated over a transmission medium with various other devices is provided.Such as：Second transceiver 1002 from its He receives external data at equipment.Second transceiver 1002 is used for that treated that data are sent to other sets by second processor 1001 It is standby.Depending on the property of computing system, user interface 1005, such as keypad, display, loud speaker, Mike can also be provided Wind, control stick.

Second processor 1001 is responsible for the second bus 1000 and common processing, and general operation is run as described in aforementioned System.And second memory 1004 can be used to store the used data when executing operation of second processor 1001.

Optionally, second processor 1001 can be CPU, ASIC (Application Specific Integrated Circuit, application-specific integrated circuit), FPGA (Field-Programmable Gate Array, field programmable gate array) or CPLD (Complex Programmable Logic Device, Complex Programmable Logic Devices).

The embodiment of the present invention additionally provides a kind of computer readable storage medium, is stored thereon with computer program and (refers to Enable), the method as described above for determining down control channel DMRS resources is realized when which is executed by processor Step.

It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text mean it is related with embodiment A particular feature, structure, or characteristic includes at least one embodiment of the present invention.Therefore, occur everywhere in the whole instruction " in one embodiment " or " in one embodiment " not necessarily refer to identical embodiment.In addition, these specific feature, knots Structure or characteristic can in any suitable manner combine in one or more embodiments.

In various embodiments of the present invention, it should be appreciated that size of the sequence numbers of the above procedures is not meant to execute suitable The execution sequence of the priority of sequence, each process should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention Process constitutes any restriction.

In addition, the terms " system " and " network " are often used interchangeably herein.

It should be understood that the terms "and/or", only a kind of incidence relation of description affiliated partner, expression can deposit In three kinds of relationships, for example, A and/or B, can indicate：Individualism A exists simultaneously A and B, these three situations of individualism B. In addition, character "/" herein, it is a kind of relationship of "or" to typically represent forward-backward correlation object.

In embodiment provided herein, it should be appreciated that " B corresponding with A " indicates that B is associated with A, can be with according to A Determine B.It is also to be understood that determine that B is not meant to determine B only according to A according to A, it can also be according to A and/or other information Determine B.

In several embodiments provided herein, it should be understood that disclosed method and apparatus, it can be by other Mode realize.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only For a kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component can combine Or it is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed phase Coupling, direct-coupling or communication connection between mutually can be by some interfaces, the INDIRECT COUPLING or communication of device or unit Connection can be electrical, machinery or other forms.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also It is that the independent physics of each unit includes, it can also be during two or more units be integrated in one unit.Above-mentioned integrated list The form that hardware had both may be used in member is realized, can also be realized in the form of hardware adds SFU software functional unit.

The above-mentioned integrated unit being realized in the form of SFU software functional unit can be stored in one and computer-readable deposit In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are used so that a computer Equipment (can be personal computer, server or network side equipment etc.) executes transmitting-receiving side described in each embodiment of the present invention The part steps of method.And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (Read-Only Memory, letter Claim ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic disc or CD etc. are various to deposit Store up the medium of program code.

Above-described is the preferred embodiment of the present invention, it should be pointed out that the ordinary person of the art is come It says, several improvements and modifications can also be made under the premise of not departing from principle of the present invention, these improvements and modifications also exist In protection scope of the present invention.

Claims

1. a kind of method of determining down control channel DMRS resources, which is characterized in that the method includes：

The display signaling and/or implicit mode that terminal is sent by base station know that terminal receives used in down control channel Demodulated reference signal transmissions pattern and/or time-domain position.

2. according to the method described in claim 1, it is characterized in that, display signaling that the terminal is sent by base station and/or Implicit mode knows that terminal receives demodulated reference signal transmissions pattern and/or time-domain position used in down control channel, Including：

The display signaling and/or implicit mode that the terminal is sent by base station know that terminal receives first part's downlink control Demodulated reference signal pattern and/or time-domain position used in the down control channel demodulation transmitted in channel resource set, In, first part's down control channel resources set is used for transmission common control channel and/or terminal-specific UE- The down control channel of specific；And/or

The display signaling and/or implicit mode that the terminal is sent by base station know that terminal receives the control of second part downlink Demodulated reference signal pattern and/or time-domain position used in the down control channel demodulation transmitted in channel resource set, In, the second part down control channel resources set is used for transmission the downlink control letter of the UE-specific of dispatch terminal Road.

3. according to the method described in claim 2, it is characterized in that, display signaling that the terminal is sent by base station and/or Implicit mode knows that terminal receives the down control channel demodulation institute transmitted in first part's down control channel resources set The demodulated reference signal pattern and/or time-domain position used, including：

The display signaling that the terminal is sent by base station knows that terminal receives in first part's down control channel resources set The mapping pattern and/or time-domain position of demodulated reference signal DMRS used in the down control channel demodulation of transmission；And/or

The terminal knows that terminal receives the downlink transmitted in first part's down control channel resources set by implicit The mapping pattern and/or time-domain position of DMRS used in control channel demodulation.

4. according to the method described in claim 3, it is characterized in that, the display signaling is to carry DMRS mapping patterns instruction letter The Master Information Block mib information of breath, mapping patterns of the DMRS mapping patterns instruction information instruction DMRS in resource block RB are compiled Number.

5. according to the method described in claim 4, it is characterized in that, also carrying DMRS mapping patterns in the mib information Time domain indicates information, and whether there is DMRS in the time domain instruction information instruction orthogonal frequency division multiplex OFDM symbol maps resource.

6. according to the method described in claim 3, it is characterized in that, if shared by first part's down control channel resources set Time-domain resource when being up to P OFDM symbol,

Ceil (log are carried in the mib information₂P) bit bit information is indicated from first part's down control channel resources set First interior OFDM symbol come into existence DMRS mapping resource continuous OFDM symbol number；Or

P bit information is carried in the mib information indicates that there are the OFDM that DMRS maps resource by way of bitmap bitmap Symbol.

7. according to the method described in claim 3, it is characterized in that,

DMRS mapping patterns used in the down control channel transmitted in first part's down control channel resources set with DMRS mapping patterns used in Physical Broadcast Channel PBCH are identical；Or

DMRS mapping patterns used in the down control channel transmitted in first part's down control channel resources set by Protocol definition.

8. according to the method described in claim 2, it is characterized in that, display signaling that the terminal is sent by base station and/or Implicit mode knows that terminal receives the down control channel demodulation institute transmitted in second part down control channel resources set The demodulated reference signal pattern and/or time-domain position used, including：

The display signaling that the terminal is sent by base station knows that terminal receives in second part down control channel resources set DMRS mapping patterns and/or time-domain position used in the down control channel demodulation of transmission；And/or

The terminal, which is known by implicit mode in terminal reception second part down control channel resources set, to be transmitted down DMRS mapping patterns and/or time-domain position used in row control channel.

9. according to the method described in claim 8, it is characterized in that, the display signaling that the terminal is sent by base station knows end End receives DMRS mapping graphs used in the down control channel demodulation transmitted in second part down control channel resources set Sample, including：

The terminal carried in the high-level signaling that the terminal is sent according to base station receives second part down control channel resources collection DMRS mapping patterns used in the down control channel transmitted in conjunction indicate information, determine that second part down control channel provides DMRS mapping patterns used in the down control channel transmitted in the set of source；Or

The terminal carried in the physical layer signaling that the terminal is sent according to base station receives second part down control channel resources DMRS mapping patterns used in the down control channel transmitted in set indicate information, determine second part Downlink Control Information Used DMRS mapping patterns when transmission；

Wherein, Downlink Control Information includes first part's Downlink Control Information and second part Downlink Control Information, wherein described First part's Downlink Control Information and second part Downlink Control Information transmit on different running time-frequency resources, the first part Downlink Control Information includes the relevant information of second part Downlink Control Information；

Wherein, first part's Downlink Control Information is reflected using the DMRS that fixed DMRS mapping patterns and/or base station notify Pattern is penetrated, terminal needs to receive first part's Downlink Control Information first, and is obtained according to first part's Downlink Control Information Obtain the relevant information of second part Downlink Control Information.

10. according to the method described in claim 8, it is characterized in that,

DMRS mapping patterns used in the down control channel transmitted in second part down control channel resources set with DMRS mapping patterns used in PBCH are identical；Or

DMRS mapping patterns used in the down control channel transmitted in second part down control channel resources set by Protocol definition.

11. according to the method described in claim 9, it is characterized in that, the high-level signaling or first part's downlink control letter The time domain that DMRS mapping patterns are carried in breath indicates information, whether there is DMRS in the time domain instruction information instruction OFDM symbol Map resource.

12. according to the method described in claim 9, it is characterized in that, if shared by the second down control channel resources set When time-domain resource is up to P OFDM symbol,

Ceil (log are carried in the high-level signaling or first part's Downlink Control Information₂P) bit bit information is indicated from second In down control channel resources set first OFDM symbol come into existence DMRS mapping resource continuous OFDM symbol number or First OFDM symbol that person occupies from second part Downlink Control Information come into existence DMRS mapping resource continuous OFDM symbol Number number；Or

P bit information is carried in the high-level signaling or first part's Downlink Control Information by way of bitmap bitmap to refer to Show that there are the OFDM symbols that DMRS maps resource.

13. the method according to claim 2 or 8, which is characterized in that

The demodulated reference signal pattern includes at least port numbering used in demodulated reference signal transmissions, occupies the position of resource It sets and base station understands consistent resource impact rule with terminal.

14. according to the method for claim 13, which is characterized in that the demodulated reference signal pattern is reference signal transmission Occupied resource continuous M orthogonal frequency division multiplex OFDM symbol in the time domain, 12 subcarrier subcarrier models on frequency domain Resource impact rule in enclosing, wherein M is the positive integer more than or equal to 1.

15. according to the method for claim 13, which is characterized in that different port numberings has different DMRS mapping graphs Sample, if the port number that the transmission of down control channel uses is X, the offset offset that identical port maps in a RB is Y, the resource unit number that each port occupies in a RB are Z, then the numerical value of each group (X Y Z) determines that a kind of DMRS reflects Pattern, X, Y are penetrated, Z is the positive integer more than or equal to 1.

16. a kind of method of determining down control channel DMRS resources, which is characterized in that the method includes：

Base station is by showing that signaling and/or implicit mode notify terminal to receive demodulation reference used in down control channel and believe Number transmission pattern and/or time-domain position.

17. according to the method for claim 16, which is characterized in that base station is logical by showing signaling and/or implicit mode Know that terminal receives demodulated reference signal transmissions pattern and/or time-domain position used in down control channel, including：

The base station is by showing that signaling and/or implicit mode notify terminal to receive first part's down control channel resources collection DMRS mapping patterns and/or time-domain position used in the down control channel transmitted in closing, first part's downlink control Channel resource set is used for transmission the down control channel of common control channel and/or terminal-specific UE-specific；Or

The base station is by showing that signaling and/or implicit mode notify terminal to receive second part down control channel resources collection DMRS mapping patterns and/or time-domain position used in the down control channel transmitted in closing, the second part downlink control Channel resource set is used for transmission the down control channel of the UE-specific of dispatch terminal.

18. according to the method for claim 17, which is characterized in that the base station is by showing signaling and/or implicit side Formula notice terminal receives DMRS used in the down control channel transmitted in first part's down control channel resources set and reflects Pattern and/or time-domain position are penetrated, including：

Mapping pattern in the base station selected predefined DMRS mapping patterns set transmits DMRS, and by mib information or The DMRS mapping patterns instruction information notice terminal carried in person's system information block SIB information receives first part's downlink control letter DMRS mapping patterns and/or time-domain position used in the down control channel transmitted in road resource collection, the DMRS mappings Pattern indicates mapping pattern numbers of the information instruction DMRS in RB；Or

The DMRS mapping patterns transmission that the base station is used according to PBCH passes in first part's down control channel resources set DMRS used in defeated down control channel；Or

It transmits according to the DMRS mapping patterns of protocol definition and is passed in first part's down control channel resources set in the base station DMRS used in defeated down control channel.

19. according to the method for claim 18, which is characterized in that also carry DMRS mapping patterns in the mib information Time domain indicates information.

20. according to the method for claim 17, which is characterized in that the base station is by showing signaling and/or implicit side Formula notice terminal receives DMRS used in the down control channel transmitted in second part down control channel resources set and reflects Pattern and/or time-domain position are penetrated, including：

Mapping pattern in the base station selected predefined DMRS mapping patterns set transmits DMRS, and by high-level signaling The down control channel transmitted in its reception second part down control channel resources set of the indication signaling notice terminal of carrying Used DMRS mapping patterns；Or

Mapping pattern in the base station selected predefined DMRS mapping patterns set transmits DMRS, and passes through physical layer signaling Notify DMRS mapping patterns used in the down control channel transmitted in second part down control channel resources set；Or Person

The DMRS mapping patterns transmission that the base station is used according to PBCH passes in second part down control channel resources set DMRS mapping patterns used in defeated down control channel；Or

The base station is according to the resource mapping method of down control channel and/or the type of service and/or transmission field of scheduling data Scape selects in predefined DMRS mapping patterns set, the downlink transmitted in second part down control channel resources set DMRS mapping patterns used in control channel.

21. a kind of device of determining down control channel DMRS resources, which is characterized in that described device includes：

First determining module, display signaling and/or implicit mode for being sent by base station know that terminal receives downlink control Demodulated reference signal transmissions pattern and/or time-domain position used in channel processed.

22. device according to claim 21, which is characterized in that first determining module includes：

First determination unit, display signaling and/or implicit mode for being sent by base station know that terminal receives first Demodulated reference signal pattern used in the down control channel demodulation transmitted in point down control channel resources set and/or when Domain position, wherein first part's down control channel resources set is used for transmission common control channel and/or terminal-specific The down control channel of UE-specific；And/or

Second determination unit, display signaling and/or implicit mode for being sent by base station know that terminal receives second Demodulated reference signal pattern used in the down control channel demodulation transmitted in point down control channel resources set and/or when Domain position, wherein the second part down control channel resources set is used for transmission under the UE-specific of dispatch terminal Row control channel.

23. device according to claim 22, which is characterized in that first determination unit includes：

First determination subelement, the display signaling for being sent by base station know that terminal receives first part's down control channel The mapping pattern of demodulated reference signal DMRS and/or time domain position used in the down control channel demodulation transmitted in resource collection It sets；And/or

Second determination subelement knows that terminal receives in first part's down control channel resources set for passing through implicit The mapping pattern and/or time-domain position of DMRS used in the down control channel demodulation of transmission.

24. device according to claim 23, which is characterized in that the display signaling is to carry the instruction of DMRS mapping patterns The Master Information Block mib information of information, mapping patterns of the DMRS mapping patterns instruction information instruction DMRS in resource block RB Number.

25. device according to claim 24, which is characterized in that also carry DMRS mapping patterns in the mib information Time domain indicate information, map resource with the presence or absence of DMRS in time domain instruction information instruction OFDM symbol.

26. device according to claim 23, which is characterized in that if down control channel resources set institute of first part When the time-domain resource accounted for is up to P OFDM symbol,

27. device according to claim 23, which is characterized in that

DMRS mapping patterns used in the down control channel transmitted in first part's down control channel resources set with DMRS mapping patterns used in PBCH are identical；Or

28. device according to claim 22, which is characterized in that second determination unit includes：

Third determination subelement, the display signaling for being sent by base station know that terminal receives second part down control channel DMRS mapping patterns and/or time-domain position used in the down control channel demodulation transmitted in resource collection；And/or

4th determination subelement, for knowing that terminal receives second part down control channel resources set by implicit mode DMRS mapping patterns and/or time-domain position used in the down control channel of interior transmission.

29. device according to claim 28, which is characterized in that the third determination subelement is further used for：

The terminal carried in the high-level signaling sent according to base station receives to be transmitted in second part down control channel resources set Down control channel used in DMRS mapping patterns indicate information, determine in second part down control channel resources set DMRS mapping patterns used in the down control channel of transmission；And/or

The terminal carried in the physical layer signaling sent according to base station receives to be passed in second part down control channel resources set DMRS mapping patterns used in defeated down control channel indicate information, determine second part Downlink Control Information transmission when institute The DMRS mapping patterns used；

30. device according to claim 28, which is characterized in that

31. device according to claim 29, which is characterized in that the high-level signaling or first part's downlink control letter The time domain that DMRS mapping patterns are carried in breath indicates information, whether there is DMRS in the time domain instruction information instruction OFDM symbol Map resource.

32. device according to claim 29, which is characterized in that if shared by the second down control channel resources set When time-domain resource is up to P OFDM symbol,

Ceil (log are carried in the high-level signaling or first part's Downlink Control Information₂P) bit bit information is indicated from second First OFDM symbol comes into existence the continuous OFDM symbol of DMRS mapping resources in the down control channel resources set of part Number or first OFDM symbol being occupied from second part Downlink Control Information come into existence the continuous of DMRS mapping resources OFDM symbol number；Or

33. the device according to claim 22 or 28, which is characterized in that

34. device according to claim 33, which is characterized in that the demodulated reference signal pattern is reference signal transmission Occupied resource continuous M orthogonal frequency division multiplex OFDM symbol in the time domain, 12 subcarrier subcarrier models on frequency domain Resource impact rule in enclosing, wherein M is the positive integer more than or equal to 1.

35. device according to claim 33, which is characterized in that different port numberings has different DMRS mapping graphs Sample, if the port number that the transmission of down control channel uses is X, the offset offset that identical port maps in a RB is Y, the resource unit number that each port occupies in a RB are Z, then the numerical value of each group (X Y Z) determines that a kind of DMRS reflects Pattern, X, Y are penetrated, Z is the positive integer more than or equal to 1.

36. a kind of device of determining down control channel DMRS resources, which is characterized in that described device includes：

Second determining module, for by showing that signaling and/or implicit mode notify terminal to receive down control channel and made Demodulated reference signal transmissions pattern and/or time-domain position.

37. device according to claim 36, which is characterized in that second determining module includes：

Third determination unit, for by showing that signaling and/or implicit mode notify terminal to receive first part's downlink control DMRS mapping patterns and/or time-domain position used in the down control channel transmitted in channel resource set, described first Down control channel resources set is divided to be used for transmission common control channel and/or the downlink control of terminal-specific UE-specific Channel；Or

4th determination unit, for by showing that signaling and/or implicit mode notify terminal to receive the control of second part downlink DMRS mapping patterns and/or time-domain position used in the down control channel transmitted in channel resource set, described second The down control channel for dividing down control channel resources set to be used for transmission the UE-specific of dispatch terminal.

38. according to the device described in claim 37, which is characterized in that the third determination unit includes：

5th determination subelement for selecting the mapping pattern in predefined DMRS mapping patterns set to transmit DMRS, and is led to It crosses the DMRS mapping patterns instruction information notice terminal carried in mib information and receives first part's down control channel resources set DMRS mapping patterns and/or time-domain position used in the down control channel of interior transmission, the DMRS mapping patterns instruction letter Mapping pattern numbers of the breath instruction DMRS in RB；Or

6th determination subelement, the DMRS mapping patterns transmission for being used according to PBCH are provided in first part's down control channel DMRS used in the down control channel transmitted in the set of source；Or

7th determination subelement is provided for the DMRS mapping patterns transmission according to protocol definition in first part's down control channel DMRS used in the down control channel transmitted in the set of source.

39. according to the device described in claim 38, which is characterized in that also carry DMRS mapping patterns in the mib information Time domain indicates information.

40. according to the device described in claim 37, which is characterized in that the 4th determination unit includes：

8th determination subelement for selecting the mapping pattern in predefined DMRS mapping patterns set to transmit DMRS, and is led to It crosses the indication signaling carried in high-level signaling and notifies transmission in its reception second part down control channel resources set of terminal DMRS mapping patterns used in down control channel；Or

9th determination subelement for selecting the mapping pattern in predefined DMRS mapping patterns set to transmit DMRS, and is led to It crosses used in the down control channel that physical layer signaling notice is transmitted in second part down control channel resources set DMRS mapping patterns；Or

Tenth determination subelement, the DMRS mapping patterns transmission for being used according to PBCH are provided in second part down control channel DMRS used in the down control channel transmitted in the set of source；Or

11st determination subelement, for according to the resource mapping method of down control channel and/or the service class of scheduling data Type and/or transmitting scene select in predefined DMRS mapping patterns set, in second part down control channel resources collection DMRS used in the down control channel transmitted in conjunction.