CN109391398A

CN109391398A - Downlink Control Information indicating means and network side equipment

Info

Publication number: CN109391398A
Application number: CN201710680105.XA
Authority: CN
Inventors: 郭保娟; 苏昕
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2017-08-10
Filing date: 2017-08-10
Publication date: 2019-02-26
Anticipated expiration: 2037-08-10
Also published as: CN109391398B

Abstract

The present invention provides a kind of Downlink Control Information indicating means and network side equipment, is related to field of communication technology, in the case where newly eating dishes without rice or wine, DMRS configuration information to be notified to the port resource for making user terminal know distribution to user terminal.Downlink Control Information indicating means of the invention is applied to network side equipment, which comprises obtain the corresponding port number of each resource set of blocks RBG and/or DMRS pilot frequency locations configuration identifier；Downlink Control Information is generated according to the corresponding port number of the RBG of acquisition and/or DMRS pilot frequency locations configuration identifier.

Description

Downlink Control Information indicating means and network side equipment

Technical field

The present invention relates to field of communication technology more particularly to a kind of Downlink Control Information indicating means and network side equipment.

Background technique

In LTE (Long Term Evolution, long term evolution) system, user terminal can pass through dedicated DMRS (DeModulation Reference Signal, demodulated reference signal) carries out channel estimation, and wherein DMRS signal is executed and counted It is believed that number identical pre-encode operation.The above version of LTE Rel-10 can support that 8 (utilize OCC in such a way that code divides (Orthogonal Cover Code, orthogonal covering codes)) or orthogonal DMRS port --- the port 7 to 14 of frequency division manner, Fig. 1 The DMRS resource of LTE system downlink subframe is shown, wherein 11 corresponding ports, 7,8,11,13,12 corresponding ports 9,10,12,14. Port 7,8,11,13 is multiplexed the identical RE (Resource Element, resource element) on one group of subcarrier, is distinguished by OCC； Port 9,10,12,14 is multiplexed the identical RE on another group of subcarrier, distinguishes also by OCC.In order to realize transparent transmission and save DMRS occupies the expense of running time-frequency resource RE, and transmission mode is only by the MU-MIMO (multi-user's multiple-input and multiple-output) in LTE Rel-10 Using port 7,8, i.e., only 2 DMRSs orthogonal by OCC, while can be by quasi- orthogonal (identical with data channel pre- Coding/wave beam forming and different DMRS scramble sequences) mode distinguishes the DMRS for distributing to multiple data flows.There is only ports 7,8 when, OCC length be 2.DCI (Downlink Control Information, Downlink Control Information) includes distributing for user DMRS port and describe DMRS scramble sequence nSCID instruction, as shown in table 1 for LTE Rel-10 antenna port, disturb Code mark and the instruction of data fluxion.In 3GPP (3rd Generation Partnership Project, third generation affiliate Plan) prior art of the standard as extensive antenna --- FD-MIMO's (Full Dimension-MIMO, Quan Wei-MIMO) In discussion, propose the extended mode of DMRS to support to increase a certain number of numbers of users, for example, using port 7,8,11, 13, OCC length are 4, increase the quantity of orthogonal DMRS.

Table 1

In LTE system, no matter how increasing the orthogonal port number of DMRS, the pilot tone pattern of DMRS is fixed, as long as User terminal knows the port resource of oneself distribution, so that it may carry out infomation detection reconciliation according to fixed DMRS pilot tone pattern It adjusts.

After 5G NR (New Radio, newly eat dishes without rice or wine) project initiation, in order to reduce processing delay, lifting system performance, Again DMRS pilot tone pattern is designed and has been defined.In new DMRS pilot tone pattern, there are many different pilot tone patterns. Concrete configuration is as follows:

Configuration (configuration) 1:

DMRS symbolic number is 1: using comb2+CS2, maximum is supported to 4 ports.

As shown in Fig. 2, 11 indicate the RE of corresponding ports 2 and 3,12 indicate the RE of corresponding ports 0 and 1.Wherein comb2 is frequency Domain is multiplexed, for example is exactly the multiplexing relationship of comb2 between port 0 and 2.Sequence of the CS2 between port uses cyclic shift side Formula (cyclic shifts) is multiplexed, for example is exactly the multiplexing relationship of CS2 between port 0 and 1.

DMRS symbolic number is 2: being used comb2+CS2+TD-OCC ({ 11 } and { 1-1 }), maximum is supported to 8 ports.

As shown in figure 3,21 indicate the RE of corresponding ports 2,3,6,7,22 indicate the RE of corresponding ports 0,1,4,5.TD-OCC It is multiplexed for time domain OCC (Orthogonal Cover Code), for example is multiplexed between port 0/1 and 4/5 using time domain OCC.

Configuration 2

DMRS symbolic number is 1: being used 2-FD-OCC (adjacent frequency domain RE), maximum is supported to 6 ports.

As shown in figure 4,31 indicate the RE of corresponding ports 4,5,32 indicate the RE of corresponding ports 2,3, and 33 indicate corresponding ports 0,1 RE.2-FD-OCC, i.e. frequency domain OCC multiplexing, for example be exactly frequency domain OCC multiplexing between port 0 and 1.In addition with other ports Between use FDM (Frequency Division Multiplexing, frequency division multiplex) mode, such as port 0/1 and 2/ FDM mode is used between 3.

DMRS symbolic number is 2: using 2-FD-OCC (adjacent frequency domain RE)+TD-OCC ({ 11 } and { 1-1 }), maximum is supported To 12 ports.

As shown in figure 5,41 indicate the RE of corresponding ports 4,5,10,11,42 indicate the RE of corresponding ports 2,3,8,9,43 tables Show the RE of corresponding ports 0,1,6,7.FD-OCC is frequency domain OCC (Orthogonal Cover Code) multiplexing, such as port 0/1 And it is multiplexed between 6/7 using time domain OCC.

The case where can be seen that configuration1 from the various pattern of above-mentioned DMRS (pilot tone pattern), if supported Maximum port number be no more than 4, then can be configured with the pattern of Fig. 2；If the maximum port number held is more than 4, but not More than 8, can be configured with the pattern of Fig. 3；The case where configuration2, if the maximum port number supported does not surpass 6 are crossed, then can be configured with the pattern of Fig. 4, if the maximum port number supported is more than 6, but is no more than 12, Ke Yiyong The pattern of Fig. 5 is configured.Port number in this refers to the port number summation for all users being multiplexed on the resource location.

In NR, have been acknowledged that the content for the DCI information that needs include is as follows: resource information includes carrier information and time-frequency Resource allocation；MCS (Modulation and Coding Scheme, modulation and coding strategy) information；HARQ(Hybrid Automatic Repeat reQuest, hybrid automatic repeat-request) relevant information, it is indicated comprising new data, RV (Redundancy Version, redundancy) version, HARQ process etc.；PUCCH(Physical Uplink Control Channel, physical uplink control channel) relevant information includes power and resource information；Multiple antennas relevant information includes Antenna port, scrambling code ID ((identification, mark) and the number of plies etc.；CSI (Channel State Information, Channel state information) relevant information, mechanism is reported comprising CSI measurement；SRS (Sounding Reference Signal, channel Detection reference signal) relevant information；RNTI (Radio Network Tempory Identity, radio network temporary identifier). Wherein multiple antennas information includes the content that DMRS configuration needs, and there is presently no determinations.

Summary of the invention

In view of this, the present invention provides a kind of Downlink Control Information indicating means and network side equipment, can eat dishes without rice or wine newly Under, DMRS configuration information is notified to the port resource for making user terminal know distribution to user terminal.

The embodiment of the present invention provides a kind of Downlink Control Information indicating means, is applied to network side equipment, the method packet It includes:

Obtain the corresponding port number of each resource set of blocks RBG and/or DMRS pilot frequency locations configuration identifier；

Downlink Control Information is generated according to the corresponding port number of the RBG of acquisition and/or DMRS pilot frequency locations configuration identifier.

Further, the step of generating the Downlink Control Information include:

It will be one group with the RBG of identical port number points, establish the RBG logo collection of every group of RBG；

The corresponding port number of all RBG is ranked up according to sequence from big to small, obtains the conjunction of Single port manifold, it is described The corresponding RBG logo collection of each port number in port number set；

The number X for needing to notify the RBG logo collection of user terminal in Downlink Control Information is obtained, from the port manifold X port number before being selected in conjunction, and the corresponding RBG logo collection of other port numbers in addition to preceding X port number is merged Into the corresponding RBG logo collection of X port number；

The X port number and its corresponding RBG logo collection are placed in the Downlink Control Information.

Further, the step of generating the Downlink Control Information include:

The corresponding RBG number of the same port number is ranked up according to sequence from big to small, obtains RBG set；

The number X for needing to notify the RBG logo collection of user terminal in Downlink Control Information is obtained, is gathered from the RBG X RBG number before middle selection determines the corresponding port number of X RBG number, wherein the corresponding port number of RBG number of X For the corresponding maximum port number of other RBG number in addition to first X-1 RBG number, and will be in addition to first X RBG number The corresponding RBG mark of other RBG number is merged into the corresponding RBG logo collection of RBG number of X；

The corresponding port number of X RBG number and its corresponding RBG logo collection are placed on the Downlink Control Information In.

Further, the step of generating the Downlink Control Information include:

All RBG are divided for X group, it is corresponding using the maximum value in each group in the corresponding port number of RBG as this group of RBG Port number；

The logo collection of the corresponding port number of every group of RBG and every group of RBG is placed in the Downlink Control Information.

Further, it is described all RBG are divided include: for X group

All RBG are divided into X group；Or

All RBG are divided for X group according to the corresponding port number of RBG.

Further, it is described all RBG are divided according to the corresponding port number of RBG include: for X group

All RBG are divided for X group according to the size of port number, the corresponding port number of each group of RBG belongs to same value Section, the corresponding value interval of the corresponding port number of difference group RBG are not overlapped.

Further, the step of generating the Downlink Control Information include:

The OFDM symbol number occupied according to DMRS pilot tone is by all RBG points in first group and second group, first group The OFDM symbol number that RBG is occupied is 1, and the OFDM symbol number that RBG is occupied in second group is 2, by the corresponding port every group of RBG Maximum value in number is as the corresponding port number of this group of RBG；

Further, the step of generating the Downlink Control Information include:

All RBG are divided for X group, obtain in each group that RBG is corresponding to represent port number；

For every group of RBG, the actual port number of every RBG and the corresponding difference for representing port number are calculated；

The corresponding logo collection for representing port number, the difference and every group of RBG of every group of RBG is placed on the downlink control In information processed.

Further, the port number that represents is the maximum value, minimum value of the corresponding port number of RBG in each group, average The port number of value or corresponding most RBG.

Further, the step of generating the Downlink Control Information include:

Obtain that all RBG are corresponding to represent port number；

The representative port number of all RBG is placed in the Downlink Control Information.

Further, it is described represent port number as the maximum value of the corresponding port number of all RBG, minimum value, average value or The port number of corresponding most RBG.

Further, when the corresponding port number of RBG does not uniquely correspond to a DMRS pilot frequency locations configuration identifier, the method Further include:

It calculates DMRS pilot frequency locations configuration identifier corresponding to the actual port number of every RBG in every group and represents port number Pilot frequency locations between corresponding DMRS pilot frequency locations configuration identifier configure difference；

Pilot frequency locations configuration difference is placed in the Downlink Control Information.

The embodiment of the invention also provides a kind of network side equipment, the network side equipment includes:

Module is obtained, for obtaining the corresponding port number of each resource set of blocks RBG and/or DMRS pilot frequency locations configuration mark Know；

Generation module, for according to acquisition the corresponding port number of RBG and/or DMRS pilot frequency locations configuration identifier generate under Row control information.

Further, the generation module includes:

First grouped element is one group for that will have the RBG of identical port number points, establishes the RBG identification sets of every group of RBG It closes；

First sequencing unit is obtained for the corresponding port number of all RBG to be ranked up according to sequence from big to small Single port manifold is closed, the corresponding RBG logo collection of each port number in the port number set；

First processing units, for obtain need to notify in Downlink Control Information user terminal RBG logo collection Number X, X port number before being selected from the port number set, and other port numbers in addition to preceding X port number are corresponding RBG logo collection is merged into the corresponding RBG logo collection of X port number；

First generation unit is controlled for the X port number and its corresponding RBG logo collection to be placed on the downlink In information.

Further, the generation module includes:

Second sequencing unit, for arranging the corresponding RBG number of the same port number according to sequence from big to small Sequence obtains RBG set；

The second processing unit, for obtain need to notify in Downlink Control Information user terminal RBG logo collection Number X, X RBG number before selecting in RBG set, determines the corresponding port number of X RBG number, wherein X The corresponding port number of RBG number is the corresponding maximum port number of other RBG number in addition to first X-1 RBG number, and will be removed The corresponding RBG mark of other RBG number except first X RBG number is merged into the corresponding RBG identification sets of RBG number of X In conjunction；

Second generation unit, for placing the corresponding port number of X RBG number and its corresponding RBG logo collection In the Downlink Control Information.

Further, the generation module includes:

Second packet unit, for dividing all RBG for X group, by the maximum in each group in the corresponding port number of RBG Value is used as the corresponding port number of this group of RBG；

Third generation unit, for by the logo collection of the corresponding port number of every group of RBG and every group of RBG be placed on it is described under In row control information.

Further, the second packet unit is specifically used for all RBG being divided into X group；Or

Further, the second packet unit is specifically used for dividing all RBG for X group according to the size of port number, The corresponding port number of each group of RBG belongs to same value interval, and the corresponding value interval of the corresponding port number of difference group RBG does not weigh It closes.

Further, the generation module includes:

Third grouped element, it is first group that the OFDM symbol number for occupying according to DMRS pilot tone, which divides all RBG, With second group, first group in the OFDM symbol number that occupies of RBG be 1, the OFDM symbol number that RBG is occupied in second group is 2, will Maximum value in the corresponding port number of every group of RBG is as the corresponding port number of this group of RBG；

4th generation unit, for by the logo collection of the corresponding port number of every group of RBG and every group of RBG be placed on it is described under In row control information.

Further, the generation module includes:

4th grouped element obtains in each group that RBG is corresponding to represent port number for dividing all RBG for X group；

First computing unit, for for every group of RBG, the actual port number for calculating every RBG to represent port number with corresponding Difference；

5th generation unit, for by the corresponding identification sets for representing port number, the difference and every group of RBG of every group of RBG Conjunction is placed in the Downlink Control Information.

Further, the generation module includes:

Second computing unit, for obtaining, all RBG are corresponding to represent port number；

6th generation unit, for the representative port number of all RBG to be placed in the Downlink Control Information.

Further, when the corresponding port number of RBG does not uniquely correspond to a DMRS pilot frequency locations configuration identifier, the network Side apparatus further include:

Third computing unit is matched for calculating DMRS pilot frequency locations corresponding to the actual port number of every RBG in every group Set the pilot frequency locations configuration difference identified between DMRS pilot frequency locations configuration identifier corresponding with port number is represented；

5th generation unit is also used to for pilot frequency locations configuration difference being placed in the Downlink Control Information.

The embodiment of the invention also provides a kind of network side equipment, including memory, processor, transceiver and it is stored in institute State the computer program that can be run on memory and on the processor；The processor executes real when the computer program The now step in method as described above.

The embodiment of the invention also provides a kind of computer readable storage mediums, for storing computer program, the meter Calculation machine program realizes the step in method as described above when being executed by processor.

The advantageous effects of the above technical solutions of the present invention are as follows:

In above scheme, network side equipment is according in the corresponding port number of every RBG and DMRS pilot frequency locations configuration identifier At least one generate Downlink Control Information, DMRS configuration information is notified to user terminal by Downlink Control Information so that User terminal can know DMRS configuration information after receiving Downlink Control Information, and then according to corresponding DMRS pilot tone pattern Carry out infomation detection and demodulation.

Detailed description of the invention

Fig. 1 is the DMRS resource schematic diagram of LTE system downlink subframe；

Fig. 2-Fig. 5 is DMRS pilot tone pattern；

Fig. 6 is the flow chart of Downlink Control Information of embodiment of the present invention indicating means；

Fig. 7-Fig. 8 is the structural block diagram of network side equipment of the embodiment of the present invention.

Specific embodiment

Below in conjunction with drawings and examples, specific embodiments of the present invention will be described in further detail.Following reality Example is applied for illustrating the present invention, but is not intended to limit the scope of the invention.

The present invention provides a kind of Downlink Control Information indicating means and network side equipment, can be in the case where newly eating dishes without rice or wine, by DMRS Configuration information notifies the port resource for making user terminal know distribution to user terminal.

The embodiment of the present invention provides a kind of Downlink Control Information indicating means, is applied to network side equipment, as shown in Figure 1, The described method includes:

Step 101 obtains the corresponding port number of each resource set of blocks RBG and/or DMRS pilot frequency locations configuration identifier；

Step 102 generates downlink control according to the corresponding port number of RBG and/or DMRS pilot frequency locations configuration identifier of acquisition Information processed.

Further, after generating Downlink Control Information, Downlink Control Information can be sent to user by network side equipment Terminal.Wherein, network side equipment can be base station or centralized node.

In the present embodiment, network side equipment is according in the corresponding port number of every RBG and DMRS pilot frequency locations configuration identifier At least one generate Downlink Control Information, DMRS configuration information is notified to user terminal by Downlink Control Information so that User terminal can know DMRS configuration information after receiving Downlink Control Information, and then according to corresponding DMRS pilot tone pattern Carry out infomation detection and demodulation.

It describes in detail below with reference to specific embodiment to Downlink Control Information indicating means of the invention:

5G newly eats dishes without rice or wine down, needs support big band width configuration, PRB (Physical Resource Block, Physical Resource Block) Quantity it is very big, in order to reduce processing complexity, defined in NR resource allocation unit RBG (Resource Block Group, Resource set of blocks), each RBG includes x PRB, and specific x value passes through high-rise configuration.

MU-MIMO is needed support simultaneously, respective occupancy resource is distributed according to the traffic needs of different user, in this way It is possible to the number of users for occurring being multiplexed in different RBG resources difference, total port number is different.But it is optional under normal circumstances Port number ratio RBG resource number it is few, so can have each port number corresponds to multiple RBG index (mark), the present invention The total port number of all users in the resource that the port number just refers to.

Assuming that the index of RBG resource isCorresponding port number isI.e. Index is r₁The corresponding port number of RBG be p₁, index r₂The corresponding port number of RBG be p₂, and so on.Port number According to the difference that DMRS is configured, affiliated value range is variant, it is assumed that DMRS configuration 1, port number value range For { 2,3 ..., 8 }, it is assumed that DMRS configuration 2, port number value range is { 2,3 ..., 12 }, by port numberMerge, identical port number is merged into one, and corresponding RBG index is merged into one group, i.e., in the group The corresponding port number of all RBG index it is all the same.Count the corresponding RBG index of identical port number, it is assumed that after merging Port number be N number of combination, then the value of corresponding ports number be p ∈ { p '₁,p'₂,…,p'_N, the n-th maximum port number p_nIt is corresponding RBG index collection is combined into r_n, it isSubset, r_nSub-set size is R_n。

In specific embodiment one, the step of generating the Downlink Control Information, includes:

It will be one group with the RBG of identical port number points, establish the RBG index set of every group of RBG；

The corresponding port number of all RBG is ranked up according to sequence from big to small, obtains the conjunction of Single port manifold, it is described The corresponding RBG index set of each port number in port number set；

The number X for needing to notify the RBG index of user terminal to gather in Downlink Control Information is obtained, from the port number X port number before being selected in set, and the corresponding RBG index of other port numbers in addition to preceding X port number is gathered It is merged into the corresponding RBG index set of X port number；

The X port number and its corresponding RBG index set are placed in the Downlink Control Information.

In one embodiment, the port number in all RBG resources is ranked up from big to small, is { p'_max,1,p '_max,2,…,p'_max,N, n-th of port number p'_max,nCorresponding RBG index collection is combined into r_max,n.Determine the needs in DCI information To the number X for the RBG index set that user terminal notifies, X is the integer greater than 1, from set { p'_max,1,p'_max,2,…, p'_max,NIn select before X port number, corresponding value is { p'_max,1,p'_max,2,…,p'_max,X, wherein X port number p'_max,XCorresponding RBG index is { p'_max,X,p'_max,X-1,…,p'_max,NCorresponding RBG index set r_max,X, r_max,X+1,…,r_max,NSummation, preceding X port number and corresponding RBG index set are placed on the downlink later and controlled In information.

In this specific embodiment, overhead bit required for transmission port number and RBG index are as follows:

X is the number for determining the port number notified to user terminal, it is assumed that selection is maximum to be supported to 4, i.e., { 1,2,3,4 }, It can be indicated with xbits, RBG number of total allocation resource is Y, can be indicated with ybits.

Assuming that X is 4；Support according to carrier wave maximum each in NR to 400MHz, maximum subcarrier number be 3300 or 6600, so the PRB number needed support is 6600/12=550, if a RBG is Z PRB, it is assumed that Z=1 is then needed It supports 550 RBG of maximum, is indicated with 10bits, is i.e. x is 2bits, and the bit number of y 10bit, port number p are 4.Then bit Overhead is x+X* (p+y)=58bits.

In specific embodiment two, the step of generating the Downlink Control Information, includes:

The number X for needing to notify the RBG index of user terminal to gather in Downlink Control Information is obtained, from the RBG collection X RBG number before selecting in conjunction, determines the corresponding port number of X RBG number, wherein the corresponding port of RBG number of X Number is the corresponding maximum port number of other RBG number in addition to first X-1 RBG number, and will be in addition to first X RBG number The corresponding RBG index of other RBG number be merged into RBG number of X corresponding RBG index set；

The corresponding port number of X RBG number and its corresponding RBG index set are placed on the downlink control letter In breath.

In one embodiment, by the corresponding RBG number { R of the same port number₁,R₂,…,R_NAccording to sorting from large to small, It is { R after sequence_max,1,R_max,2,…,R_max,N, the corresponding port number of each RBG number is { p'_max,1,p'_max,2,…,p '_max,N}。

The number X for needing the RBG index notified to user terminal to gather in DCI is determined, from set { R_max,1, R_max,2,…,R_max,NIn select before X RBG number, corresponding port number be { p'_max,1,p'_max,2,…,p'_max,X, wherein the X RBG number is updated to RBG index set { R_max,X,R_max,X+1,…,R_max,NCorresponding RBG index set r_max,X, r_max,X+1,…,r_max,NSummation, p'_max,XIt is updated to { p'_max,X,p'_max,X+1,…,p'_max,NIn all of the port number maximum Value.

In specific embodiment three, the step of generating the Downlink Control Information, includes:

The index of the corresponding port number of every group of RBG and every group of RBG set are placed in the Downlink Control Information.

Further, it is described all RBG are divided include: for X group

All RBG are divided into X group；Or

All RBG are divided for X group according to the size of port number, the corresponding port number of each group of RBG belongs to same value Section, the corresponding value interval of the corresponding port number of difference group RBG are not overlapped.In one embodiment, the index of RBG resource isAll RBG resources are divided into X group, X is the integer greater than 1, can be with even group-division, it can also basis The corresponding port number distribution of respective RBG index to be grouped, such as the RBG index that differs greatly of port number can divide it is lesser Group, port number difference lesser RBG index can divide biggish group.

In each group, the maximum value in the group in the corresponding port number of all RBG index is selected, determining as the group Port number.

X is the number for determining the RBG resource notified to user terminal, it is assumed that selection is maximum to be supported to 4, i.e., { 1,2,3,4 }, It can be indicated with xbits, RBG number of total allocation resource is Y.

Assuming that X is 4；4 RBG resource groups are uniformly divided into, i.e. x is 2bits, and the bit number of port number p is 4.Then bit is total Expense is x+X*p=18bits.

It in specific embodiment four, is grouped according to the OFDM symbol number that DMRS pilot tone occupies, generates the downlink control The step of information includes:

X is the number for determining the resource group notified to user terminal, is fixed as 2, grouping number does not need overhead bit, always RBG number for distributing resource is Y, can be indicated with ybits.

Support that maximum subcarrier number is 3300 or 6600 to 400MHz according to carrier wave maximum each in NR, so needing PRB number being supported is 6600/12=550, if a RBG is Z PRB, it is assumed that Z=1 then needs support maximum 550 RBG, are indicated with 10bits, i.e. y is 10bit, and the bit number of port number p is 4.Then bit overhead be X* (p+y)= 28bits。

In specific embodiment five, the step of generating the Downlink Control Information, includes:

The corresponding index set for representing port number, the difference and every group of RBG of every group of RBG is placed on the downlink It controls in information.

For example, the index of RBG resource isAll RBG resources are divided into X group, X is greater than 1 Integer, every group can obtain the corresponding unified port number of all RBG resources in every group, port number P with even group-division_0,x It can be the maximum value of all RBG corresponding ports numbers in the group, average value, minimum value or the most port number of corresponding RBG etc.. If X takes 1, represents entire RBG resource and be not grouped, it is unified to generate a port number.

To every group of all RBG resource, actual port number and P are calculated₀Between difference DELTA p, be based on two parameter P_0,xAnd Δ p_xTo obtain DCI information.

X is the number for determining the RBG resource notified to user terminal, it is assumed that selection is maximum to be supported to 4, i.e., { 1,2,3,4 }, It can be indicated with xbits, RBG number of total allocation resource is Y, can be indicated with ybits.

Assuming that X is 4；It is divided into 4 RBG resource groups, i.e. x is 2bits, y 8bit, port number P₀Bit number be p=4, The bit number of Δ p is deltap=4 bit, then bit overhead is x+X* (p+deltap)=34bits.One can also be provided The specific mapping relations of kind are reduced overhead bit, for example can be indicated using 2 bits, then bit overhead is x+X* (p+ Deltap)=28bits.

Bit overhead x+X*p=18bits does not need real-time update simultaneously, can be sent out using certain period to terminal It send.

X* (deltap)=16bits is notified to user terminal in real time.Compared to specific embodiment three, the bit of real-time update Number will lack.

In specific embodiment six, the step of generating the Downlink Control Information, includes:

Obtain that all RBG are corresponding to represent port number；

This specific embodiment directly obtains a port number according to the RBG resource of all distribution of full bandwidth, can be institute The port number etc. for having maximum value, average value, minimum value or the corresponding RBG of RBG corresponding ports number most.Whole resource reportings one A unified port number.

It in this specific embodiment, transmits overhead bit required for DMRS configuration information and there was only port number expense, for 4 ratios It is special.

Specific embodiment seven

It is uniquely to correspond to a DMRS pilot frequency locations for the corresponding port number of RBG in above-mentioned specific embodiment one to six The case where configuring index does not further correspond to a DMRS pilot frequency locations uniquely in the corresponding port number of RBG and configures index When, the method also includes:

It calculates the configuration index of DMRS pilot frequency locations corresponding to the actual port number of every RBG in every group and represents port Pilot frequency locations between the corresponding DMRS pilot frequency locations configuration index of number configure difference；

For example, if the corresponding DMRS configuration of actual port number is not unique, that is, having more on the basis of specific embodiment five Kind DMRS pilot frequency locations combination can then calculate the configuration of DMRS pilot frequency locations corresponding to actual port number index and P₀It is corresponding DMRS pilot frequency locations configuration index between difference, can also directly notify DMRS pilot bit corresponding to actual port number Configuration index is set, to generate DCI information, notifies user terminal.

Citing:

In the DMRS pattern of Fig. 4, if requiring configuration DMRS is 4 ports, it is configurable to port0/1/2/3, it can also be with It is configured to port0/1/4/5 or port2/3/4/5, if the user of two dispatched simultaneously MU-MIMO, is respectively configured 2 ends Mouthful.For user terminal, the position for notifying two ports can determine whether in DCI information, it is assumed that be port0/1, then in addition to this Other than the DMRS configuration information of user terminal, if only notifying total port number 4, which can not obtain from the information Know that occupied DMRS pilot frequency locations are port0/1/2/3 or port0/1/4/5, i.e. the corresponding DMRS of actual port number 4 matches It sets not unique, needs to provide the configuration of DMRS pilot frequency locations corresponding to actual port number index.

Assuming that X is 4；It is divided into 4 RBG resource groups, i.e. x is 2bits, and it is m bit that DMRS, which configures index, it is assumed that m is 7 ratios It is special.Then bit overhead is x+X*m=30bits.If the information for being grouped number X is notified by other configurations mode (such as logical It crosses Group common PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel), or System broadcasts or other control channels etc. are semi-static or static configuration), then the information bit of real-time informing is X* herein M=28bits.

In addition, overhead bit described in above-mentioned specific embodiment one to seven, it is also necessary to be configured plus the DMRS of user terminal Information is indicated with n-bit, it is assumed that when n is 7 bit, the DMRS configuration overhead of user terminal is 7 bits.

The embodiment of the invention also provides a kind of network side equipments, as shown in fig. 7, the network side equipment includes:

Module 21 is obtained, for obtaining the corresponding port number of each resource set of blocks RBG and/or the configuration of DMRS pilot frequency locations Mark；

Generation module 22, for according to acquisition the corresponding port number of RBG and/or DMRS pilot frequency locations configuration identifier generate Downlink Control Information.

In one specific embodiment, the generation module includes:

In one specific embodiment, when the corresponding port number of RBG does not uniquely correspond to a DMRS pilot frequency locations configuration identifier, institute State network side equipment further include:

It should be noted that network side equipment provided in an embodiment of the present invention is can to correspond to realization above method embodiment The network side equipment of offer, therefore all embodiments of the Downlink Control Information indicating means of above method embodiment offer can be right It should apply to the network side equipment, and can reach the same or similar beneficial effect.

It, can also be in addition, each functional module in each embodiment of the present invention can integrate in a processing module It is that the independent physics of modules includes, can also be integrated in two or more modules in a module.Above-mentioned integrated mould Block both can take the form of hardware realization, can also realize in the form of hardware adds software function module.

The embodiment of the invention also provides a kind of network side equipments, as shown in Figure 8, comprising:

Processor 1100 executes following process for reading the program in memory 1120:

Further, network side equipment further includes transceiver 1111,

Processor 1100 is also used to read the program in memory 1120, executes following process: being sent out by transceiver 1111 Send Downlink Control Information；

Transceiver 1111, for sending Downlink Control Information under the control of processor 1100.

Wherein, in fig. 8, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor The various circuits for the memory that 1100 one or more processors represented and memory 1120 represent link together.Total coil holder Structure can also link together various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like, this It is all a bit it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 1111 can be multiple element, that is, include transmitter and transceiver, provide for logical with various other devices over a transmission medium The unit of letter.Processor 1100 is responsible for management bus architecture and common processing, memory 1120 can store processor 1100 The used data when executing operation.

Processor 1100, which is responsible for management bus architecture and common processing, memory 1120, can store processor 1100 and exists Execute used data when operation.

Processor 1100 is also used to read the computer program, executes following steps:

All RBG are divided into X group；Or

Obtain that all RBG are corresponding to represent port number；

Further, when the corresponding port number of RBG does not uniquely correspond to a DMRS pilot frequency locations configuration identifier, processor 1100 are also used to read the computer program, execute following steps:

The embodiment of the invention also provides a kind of computer readable storage mediums, are stored thereon with computer program, the journey It is performed the steps of when sequence is executed by processor

Further, it is also performed the steps of when which is executed by processor

All RBG are divided into X group；Or

Further, it is also performed the steps of when which is executed by processor

Obtain that all RBG are corresponding to represent port number；

Further, when the corresponding port number of RBG does not uniquely correspond to a DMRS pilot frequency locations configuration identifier, the program quilt Processor also performs the steps of when executing

Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method Or technology come realize information store.Information can be computer readable instructions, data structure, the module of program or other data. The example of the storage medium of computer includes, but are not limited to phase change memory (PRAM), static random access memory (SRAM), moves State random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electric erasable Programmable read only memory (EEPROM), flash memory or other memory techniques, read-only disc read only memory (CD-ROM) (CD-ROM), Digital versatile disc (DVD) or other optical storage, magnetic cassettes, tape magnetic disk storage or other magnetic storage devices Or any other non-transmission medium, can be used for storage can be accessed by a computing device information.As defined in this article, it calculates Machine readable medium does not include temporary computer readable media (transitory media), such as the data-signal and carrier wave of modulation.

The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims

1. a kind of Downlink Control Information indicating means is applied to network side equipment, which is characterized in that the described method includes:

2. Downlink Control Information indicating means according to claim 1, which is characterized in that generate the Downlink Control Information The step of include:

The corresponding port number of all RBG is ranked up according to sequence from big to small, obtains the conjunction of Single port manifold, the port The corresponding RBG logo collection of each port number in manifold conjunction；

The number X for needing to notify the RBG logo collection of user terminal in Downlink Control Information is obtained, from the port number set X port number before selecting, and the corresponding RBG logo collection of other port numbers in addition to preceding X port number is merged into X In the corresponding RBG logo collection of a port number；

3. Downlink Control Information indicating means according to claim 1, which is characterized in that generate the Downlink Control Information The step of include:

The number X for needing to notify the RBG logo collection of user terminal in Downlink Control Information is obtained, is selected from RBG set X RBG number before selecting, determines the corresponding port number of X RBG number, wherein the corresponding port number of RBG number of X for except The corresponding maximum port number of other RBG number except first X-1 RBG number, and by other in addition to first X RBG number The corresponding RBG mark of RBG number is merged into the corresponding RBG logo collection of RBG number of X；

The corresponding port number of X RBG number and its corresponding RBG logo collection are placed in the Downlink Control Information.

4. Downlink Control Information indicating means according to claim 1, which is characterized in that generate the Downlink Control Information The step of include:

All RBG are divided for X group, using the maximum value in each group in the corresponding port number of RBG as the corresponding end this group of RBG Mouth number；

5. Downlink Control Information indicating means according to claim 4, which is characterized in that described to divide all RBG for X Group includes:

All RBG are divided into X group；Or

6. Downlink Control Information indicating means according to claim 5, which is characterized in that described according to the corresponding end RBG Mouth number divides all RBG includes: for X group

All RBG are divided for X group according to the size of port number, the corresponding port number of each group of RBG belongs to same value interval, The corresponding value interval of the corresponding port number of difference group RBG is not overlapped.

7. Downlink Control Information indicating means according to claim 1, which is characterized in that generate the Downlink Control Information The step of include:

All RBG points are that RBG is accounted in first group and second group, first group by the OFDM symbol number occupied according to DMRS pilot tone OFDM symbol number is 1, and the OFDM symbol number that RBG is occupied in second group is 2, will be in the corresponding port number of every group of RBG Maximum value as the corresponding port number of this group of RBG；

8. Downlink Control Information indicating means according to claim 1, which is characterized in that generate the Downlink Control Information The step of include:

The corresponding logo collection for representing port number, the difference and every group of RBG of every group of RBG is placed on the downlink control letter In breath.

9. Downlink Control Information indicating means according to claim 8, which is characterized in that the port number that represents is each The port number of the maximum value, minimum value of the corresponding port number of RBG, average value or corresponding most RBG in group.

10. Downlink Control Information indicating means according to claim 1, which is characterized in that generate the downlink control letter The step of breath includes:

Obtain that all RBG are corresponding to represent port number；

11. Downlink Control Information indicating means according to claim 10, which is characterized in that

The port number that represents is the maximum value of the corresponding port number of all RBG, minimum value, average value or corresponding most RBG Port number.

12. Downlink Control Information indicating means according to claim 8, which is characterized in that the corresponding port number of RBG not When a unique corresponding DMRS pilot frequency locations configuration identifier, the method also includes:

It is corresponding with port number is represented to calculate DMRS pilot frequency locations configuration identifier corresponding to the actual port number of every RBG in every group DMRS pilot frequency locations configuration identifier between pilot frequency locations configure difference；

13. a kind of network side equipment, which is characterized in that the network side equipment includes:

Module is obtained, for obtaining the corresponding port number of each resource set of blocks RBG and/or DMRS pilot frequency locations configuration identifier；

Generation module, for according to acquisition the corresponding port number of RBG and/or DMRS pilot frequency locations configuration identifier generate downlink control Information processed.

14. network side equipment according to claim 13, which is characterized in that the generation module includes:

First grouped element is one group for that will have the RBG of identical port number points, establishes the RBG logo collection of every group of RBG；

First sequencing unit obtains one end for the corresponding port number of all RBG to be ranked up according to sequence from big to small Mouth manifold is closed, the corresponding RBG logo collection of each port number in the port number set；

First processing units need to notify the number X of the RBG logo collection of user terminal for obtaining in Downlink Control Information, X port number before being selected from the port number set, and by the corresponding RBG of other port numbers in addition to preceding X port number Logo collection is merged into the corresponding RBG logo collection of X port number；

First generation unit, for the X port number and its corresponding RBG logo collection to be placed on the Downlink Control Information In.

15. network side equipment according to claim 13, which is characterized in that the generation module includes:

Second sequencing unit is obtained for the corresponding RBG number of the same port number to be ranked up according to sequence from big to small Gather to a RBG；

The second processing unit needs to notify the number X of the RBG logo collection of user terminal for obtaining in Downlink Control Information, X RBG number before selecting in RBG set, determines the corresponding port number of X RBG number, wherein X RBG The corresponding port number of number is the corresponding maximum port number of other RBG number in addition to first X-1 RBG number, and will be except preceding X The corresponding RBG mark of other RBG number except RBG number is merged into the corresponding RBG logo collection of RBG number of X；

Second generation unit, for the corresponding port number of X RBG number and its corresponding RBG logo collection to be placed on institute It states in Downlink Control Information.

16. network side equipment according to claim 13, which is characterized in that the generation module includes:

Second packet unit makees the maximum value in each group in the corresponding port number of RBG for dividing all RBG for X group For the corresponding port number of this group of RBG；

Third generation unit, for the logo collection of the corresponding port number of every group of RBG and every group of RBG to be placed on the downlink control In information processed.

17. network side equipment according to claim 16, which is characterized in that

The second packet unit is specifically used for all RBG being divided into X group；Or

18. network side equipment according to claim 17, which is characterized in that

The second packet unit is specifically used for dividing all RBG for X group, each group of RBG correspondence according to the size of port number Port number belong to same value interval, the corresponding value intervals of the corresponding port number of difference group RBG are not overlapped.

19. network side equipment according to claim 13, which is characterized in that the generation module includes:

Third grouped element, OFDM symbol number for occupying according to DMRS pilot tone is by all RBG points for first group and the The OFDM symbol number that RBG is occupied in two groups, first group is 1, and the OFDM symbol number that RBG is occupied in second group is 2, by every group Maximum value in the corresponding port number of RBG is as the corresponding port number of this group of RBG；

4th generation unit, for the logo collection of the corresponding port number of every group of RBG and every group of RBG to be placed on the downlink control In information processed.

20. network side equipment according to claim 13, which is characterized in that the generation module includes:

First computing unit, for for every group of RBG, calculating the actual port number of every RBG and the corresponding difference for representing port number Value；

5th generation unit, for putting the corresponding logo collection for representing port number, the difference and every group of RBG of every group of RBG It sets in the Downlink Control Information.

21. network side equipment according to claim 20, which is characterized in that the port number that represents is RBG in each group Maximum value, minimum value, average value or the port number for corresponding to most RBG of corresponding port number.

22. network side equipment according to claim 13, which is characterized in that the generation module includes:

23. network side equipment according to claim 22, which is characterized in that

24. network side equipment according to claim 20, which is characterized in that do not corresponded to uniquely in the corresponding port number of RBG When one DMRS pilot frequency locations configuration identifier, the network side equipment further include:

Third computing unit, for calculating the configuration of DMRS pilot frequency locations corresponding to the actual port number of every RBG mark in every group Know the pilot frequency locations configuration difference between DMRS pilot frequency locations configuration identifier corresponding with port number is represented；

25. a kind of network side equipment, including memory, processor, transceiver and it is stored on the memory and can be described The computer program run on processor；It is characterized in that, the processor realizes such as right when executing the computer program It is required that the step in method described in any one of 1 to 12.

26. a kind of computer readable storage medium, for storing computer program, which is characterized in that the computer program quilt The step in the method as described in any one of claims 1 to 12 is realized when processor executes.