CN102710405B

CN102710405B - The processing method of Downlink Control Information and system, base station and subscriber equipment

Info

Publication number: CN102710405B
Application number: CN201210163329.0A
Authority: CN
Inventors: 方晓波; 曾开来
Original assignee: Innofidei Technology Co Ltd
Priority date: 2012-05-23
Filing date: 2012-05-23
Publication date: 2016-08-03
Anticipated expiration: 2032-05-23
Also published as: CN102710405A

Abstract

The invention provides processing method and system, base station and the subscriber equipment of a kind of Downlink Control Information, wherein method includes: base station determines the Downlink Control Information of the subscriber equipment being active positional information in descending sub frame；The Downlink Control Information of described subscriber equipment, according to positional information in described descending sub frame of the Downlink Control Information of described subscriber equipment, is carried in described descending sub frame in described base station；Described base station sends described descending sub frame to described subscriber equipment, for described subscriber equipment after obtaining the Downlink Control Information positional information in described descending sub frame of described subscriber equipment, the Downlink Control Information according to described subscriber equipment positional information in described descending sub frame, obtains the Downlink Control Information of described subscriber equipment from described descending sub frame.Use technical scheme, there is no any empty inspection probability, it is achieved simple, it is possible to be effectively improved DCI and obtain efficiency.

Description

The processing method of Downlink Control Information and system, base station and subscriber equipment

Technical field

The present invention relates to communication technical field, particularly relate to a kind of Downlink Control Information (DownlinkControlInformation；DCI) processing method and system, base station and subscriber equipment.

Background technology

OFDM (OrthogonalFrequencyDivisionMultiplexing；OFDM) technology is Home Plug alliance (Home-PlugPower-lineAlliance；HPA) basis of industrial specification, it uses a kind of discontinuous multi-tone technology, a large amount of signals in the different frequency being referred to as carrier wave is merged into single signal, thus completes signal transmission.

In prior art, more popular the applying at Long Term Evolution (LongTermEvolution of OFDM technology commercialization networking；LTE) system.Such as in LTE system, define three kinds of downlink physical control channels: Physical Control Format Indicator Channel (PhysicalControlFormatIndicatorChannel；PCFICH), physical hybrid automatic repeat request indicator channel (PhysicalHARQIndicatorChannel；And Physical Downlink Control Channel (PhysicalDownlinkControlChannel PHICH)；PDCCH).Wherein, PCFICH is for controlling the instruction of channel format, for transmitting the quantity information of the OFDM symbol of PDCCH in one subframe of concrete instruction；PHICH is for the determination response (Acknowledge of uplink hybrid automatic repeat-request；ACK)/negative response (Non-Acknowledge；NACK) feedback information；PDCCH controls information (DownlinkControlInformation for bearing downlink；DCI), can include for transmitting the control information such as up-downgoing schedule information, common control information such as DCI.

Such as in LTE system, base station sends descending sub frame to subscriber equipment (UserEquipment, UE), and the PDCCH during wherein base station uses descending sub frame carries DCI, takies certain running time-frequency resource in descending sub frame, and the size specifically taking resource is indicated by PCFICH.Fig. 1 is a descending sub frame resource distribution instruction figure.As it is shown in figure 1, transverse axis is time domain in figure, the longitudinal axis is frequency domain, and twill is PCFICH, and vertical line is pilot tone.Wherein, a PDCCH can carry multiple DCI, multiple DCI and be divided into public DCI, special DCI.And special DCI can include the DCI of multiple UE.For UE, each UE can have a DCI, it is possibility to have multiple DCI.The DCI carried on PDCCH can include m kind form, and the DCI length of every kind of form is different.The resource size taken after the DCI coding of each form defines with the degree of polymerization, and the degree of polymerization can include again n kind；The degree of polymerization is the biggest, and the resource that same DCI takies is the most, and code efficiency is the lowest, thereby may be ensured that demodulation reliability.For each DCI, after it is encoded by base station, then it is circulated redundancy check (CyclicRedundancyCheck；And the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (CellRadioNetworkTemporaryIdentifier of UE CRC)；C-RNTI) scrambling.Last base station is carried on PDCCH together with multiple DCI after CRC with C-RNTI scrambles, and sends to UE in descending sub frame.

In UE side, after UE receives descending sub frame, first examine PCFICH, the position of available PDCCH and the size of whole PDCCH.Then, the DCI that the DCI that blind check is public on whole PDCCH and this UE is exclusive.By above-mentioned prior art it is recognised that DCI can include m kind form, the n kind degree of polymerization.Therefore UE is when detecting DCI, need every kind of DCI format and every kind of degree of polymerization are all detected demodulation one time, during detection every time, only can then determine, when solution CRC conciliates after C-RNTI scrambles successfully, the DCI that this DCI is this UE through m*n detection, and obtain this DCI altogether；Otherwise UE determines that the DCI detected is not the DCI of self.

Use above-mentioned prior art manner, in the communication system such as LTE etc using OFDM technology, UE, obtaining the DCI of self correspondence when, needs all DCI of carrying on PDCCH are carried out blind check, not being that self DCI also to examine, the empty inspection probability causing UE is bigger；And during detection, each DCI, UE being needed to attempt all possible DCI format and all possible degree of polymerization to detect the DCI whether this DCI is self, detection process is complex；Therefore, in prior art, UE obtains the inefficient of DCI.

Summary of the invention

The technical problem to be solved is to provide processing method and system, base station and the UE of a kind of DCI, to solve to use in prior art UE in the communication system of OFDM technology to obtain the inefficient problem of DCI.

In order to solve the problems referred to above, the invention discloses the processing method of a kind of Downlink Control Information, including:

Base station determines the Downlink Control Information of the subscriber equipment being active positional information in descending sub frame；

The Downlink Control Information of described subscriber equipment, according to positional information in described descending sub frame of the Downlink Control Information of described subscriber equipment, is carried in described descending sub frame in described base station；

Described base station sends described descending sub frame to described subscriber equipment, for described subscriber equipment after obtaining the Downlink Control Information positional information in described descending sub frame of described subscriber equipment, the Downlink Control Information according to described subscriber equipment positional information in described descending sub frame, obtains the Downlink Control Information of described subscriber equipment from described descending sub frame.

In order to solve the problems referred to above, the invention also discloses the processing method of a kind of Downlink Control Information, including:

The subscriber equipment being active determines the Downlink Control Information of described subscriber equipment positional information in descending sub frame；

Described subscriber equipment, according to positional information in descending sub frame of the Downlink Control Information of described subscriber equipment, obtains the Downlink Control Information of described subscriber equipment from the described descending sub frame that described base station sends.

In order to solve the problems referred to above, the invention also discloses a kind of base station, including:

Position determination module, is used for the Downlink Control Information determining the subscriber equipment being active positional information in descending sub frame；

Information carries module, is used for the positional information in described descending sub frame of the Downlink Control Information according to described subscriber equipment, carries the Downlink Control Information of described subscriber equipment in described descending sub frame；

Sending module, for sending described descending sub frame to described subscriber equipment, for described subscriber equipment after obtaining the Downlink Control Information positional information in described descending sub frame of described subscriber equipment, the Downlink Control Information according to described subscriber equipment positional information in described descending sub frame, obtains the Downlink Control Information of described subscriber equipment from described descending sub frame.

In order to solve the problems referred to above, the invention also discloses a kind of subscriber equipment, including:

Determine module, for determining Downlink Control Information positional information in descending sub frame；

Acquisition module, for according to described Downlink Control Information positional information in described descending sub frame, obtaining described Downlink Control Information from the described descending sub frame that described base station sends.

In order to solve the problems referred to above, the invention also discloses the processing system of a kind of Downlink Control Information, including base station as above and subscriber equipment as above.

Compared with prior art, the processing method of the DCI of the present invention and system, base station have the advantage that with UE

By using the technique scheme of the present invention, base station can be according to the DCI of UE positional information in descending sub frame, the DCI of this UE is carried in descending sub frame, and in UE side, UE may determine that the DCI of this UE positional information in descending sub frame, and according to the DCI of this UE positional information in descending sub frame, from the descending sub frame that base station sends, obtain the DCI of this UE.Technical scheme, UE can be directly by the DCI of this UE positional information in descending sub frame, the DCI of this UE is obtained from the descending sub frame that base station sends, without detecting incoherent DCI, there is no any empty inspection probability, realize simple, it is possible to be effectively improved DCI and obtain efficiency, and technical scheme is it can be avoided that produce the probability of mistake when detecting.In addition, in technical scheme, UE is after obtaining the positional information that base station sends, only need to i.e. can determine that the DCI of self position in descending sub frame according to this positional information, obtain the DCI of this UE exactly, compared with the complicated detection mode needing to carry out m*n detection in prior art, technical scheme can be greatly saved detection resource, reduces the operation complexity of subscriber equipment.

Accompanying drawing explanation

Fig. 1 is a kind of descending sub frame resource distribution instruction figure of prior art.

Fig. 2 is the DCI process flow figure of one embodiment of the invention.

The corresponding relation figure of the order information of the UE that Fig. 3 indicates for a kind of DCI indication code provided in the embodiment of the present invention and the DCI of the UE positional information in descending sub frame.

The structural representation of the binary bit sequence of a kind of DCI indication code that Fig. 4 provides for the embodiment of the present invention.

The flow chart of the processing method of the DCI that Fig. 5 provides for another embodiment of the present invention.

The signaling diagram of the DCI processing method that Fig. 6 provides for one embodiment of the invention.

The signaling diagram of the DCI processing method that Fig. 7 provides for another embodiment of the present invention.

The structural representation of the base station that Fig. 8 provides for the embodiment of the present invention.

The structural representation of the UE that Fig. 9 provides for one embodiment of the invention.

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

The structural representation of the processing system of the DCI that Figure 11 provides for the embodiment of the present invention.

Detailed description of the invention

Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, the present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.

The technical scheme of the embodiment of the present invention is suitable for use with in the LTE system of OFDM technology, and the UE in the embodiment of the present invention is specifically as follows fixed terminal, mobile terminal etc., and other are able to receive that the equipment of DCI of the embodiment of the present invention.Base station in the embodiment of the present invention is specifically as follows the eNB in LTE system, or the equipment of other the DCI that can send in the embodiment of the present invention.

Fig. 2 is the DCI process flow figure of one embodiment of the invention.As in figure 2 it is shown, the DCI processing method of the present embodiment describes technical scheme in detail in base station side.The DCI processing method of the present embodiment, specifically may include steps of:

100, base station determines the DCI of the UE being active positional information in descending sub frame；

101, base station is according to positional information in descending sub frame of the DCI of UE, carries the DCI of UE in descending sub frame；

102, base station sends descending sub frame to UE, for UE after obtaining the DCI positional information in descending sub frame of UE, according to the DCI of the UE positional information in descending sub frame, obtains the DCI of UE from descending sub frame.

The DCI processing method of the present embodiment, by using technique scheme, base station can be according to the DCI of UE positional information in descending sub frame, the DCI of this UE is carried in descending sub frame, and in UE side, UE may determine that the DCI of this UE positional information in descending sub frame, and according to the DCI of this UE positional information in descending sub frame, obtains the DCI of this UE from the descending sub frame that base station sends.By using the technical scheme of the present embodiment, UE can be directly by the DCI of this UE positional information in descending sub frame, the DCI of this UE is obtained from the descending sub frame that base station sends, without detecting incoherent DCI, there is no any empty inspection probability, realize simple, it is possible to be effectively improved DCI and obtain efficiency, and the technical scheme of the present embodiment is it can be avoided that produce the probability of mistake when detecting.In addition, in the technical scheme of the present embodiment, UE is after obtaining the positional information that base station sends, only need to i.e. can determine that the DCI of self position in descending sub frame according to this positional information, obtain the DCI of this UE exactly, compared with the complicated detection mode needing to carry out m*n detection in prior art, the technical scheme of the present embodiment can be greatly saved detection resource, reduces the operation complexity of subscriber equipment.

It should be noted that on the basis of the technical scheme of above-mentioned embodiment illustrated in fig. 2, it is also possible to include following optional technical scheme, constitute the alternative embodiment of embodiment illustrated in fig. 2.

Alternatively, in the alternative embodiment of embodiment illustrated in fig. 2, the step 100 " base station determines the DCI of the UE being active positional information in descending sub frame " in above-mentioned embodiment illustrated in fig. 2, specifically can realize to use the following two kinds mode:

First kind of way: base station determines the DCI of the UE being active positional information in descending sub frame according to DCI indication code；

Wherein the DCI indication code in the present embodiment be base station be at least one UE configuration in coverage；At least one UE includes the UE described in the present embodiment；It is state of activation or unactivated state that each in DCI indication code is respectively used to indicate the state of a UE at least one UE, state.Such as DCI indication code can be binary code stream, and base station, configuring DCI code when, can use 1 expression UE to be active, represent that this UE has DCI to send, and 0 represents that UE is in unactivated state, does not has the DCI of correspondence to send.Such as the DCI code that base station is 5 UE configurations accessed, can be expressed as " 10110 ", wherein first UE, the 3rd UE and the 4th UE are active, second UE and the 5th UE is in unactivated state.

The second way: base station determines the DCI of UE positional information in descending sub frame according to mark and the DCI mapping relations of UE；

In the present embodiment, DCI mapping relations are the corresponding relation between the mark of UE and the DCI of the UE positional information in descending sub frame.Such as these DCI mapping relations can carry out identical configuration in advance the time marquis of configuration in base station and UE side, or these DCI mapping relations can configure in base station side, is then sent to UE by base station.

As a example by the UE of 5 access base stations, it is assumed that the mark of UE is respectively " 1,2,3,4,5 ", corresponds respectively to UE1, UE2, UE3, UE4 and UE5, the corresponding relation of the DCI of each UE and this UE positional information in descending sub frame in these 5 UE can be set up.For example, it is possible to the DCI position in descending sub frame of configuration UE2 is 3, the DCI of UE1 position in descending sub frame is 5 etc.；The corresponding relation that can also configure between the DCI of the mark of UE in DCI mapping relations and the UE positional information in descending sub frame can be ordering relation, the DCI of i.e. UE1 position in descending sub frame is 1, the DCI of UE2 position in descending sub frame is 2, the DCI of UE3 position in descending sub frame is 3, the DCI of UE4 position in descending sub frame is 4, and the DCI of UE5 position in descending sub frame is 5；Or, the corresponding relation that DCI mapping relations are configured between the mark of UE and the DCI of the UE positional information in descending sub frame is backward relation, the DCI of i.e. UE1 position in descending sub frame is 5, the DCI of UE2 position in descending sub frame is 4, the DCI of UE3 position in descending sub frame is 3, the DCI of UE4 position in descending sub frame is 2, and the DCI of UE5 position in descending sub frame is 1.Or, in DCI mapping relations, the corresponding relation between the mark of UE and the DCI of UE positional information in descending sub frame can also be other relations, illustrates the most one by one at this.Additionally, as a example by the DCI of the UE2 position in descending sub frame is 4, if anterior locations is any one in 1-3 or UE corresponding to multiple DCI does not accesses, now this position can be empty.For the ease of accurately obtaining each DCI in the present embodiment, it is preferably provided with the resource block size that each DCI takies equal, so can accurately obtain each DCI according to the position of the size of the Resource Block that each DCI takies and DCI.The Resource Block that in actual application, each DCI takies can also differ in size.

Alternatively, in the alternative embodiment of embodiment illustrated in fig. 2, in above-mentioned first kind of way, " base station determines the DCI of the UE being active positional information in descending sub frame according to DCI indication code " specifically may include steps of:

(1) position of the UE being active for instruction during base station determines DCI indication code, all of order information being active in the position of UE for instruction in DCI indication code；

(2) base station using order information as positional information in descending sub frame of the DCI of UE.

Such as when DCI indication code is 10110 when, this DCI indication code includes three " 1 ", i.e. represent in this DCI indication code all of for instruction be active UE have three, respectively first UE, the 3rd UE and the 4th UE.It is 1 that the now position of first UE used instruction in DCI indication code is active the order in the position of 3 UE, i.e. can represent that the DCI of first UE is carried first position of all DCI in descending sub frame by base station.It is 2 that the used instruction in DCI indication code of the position of the 3rd UE is active the order in the position of 3 UE, i.e. can represent that the DCI of the 3rd UE is carried second position of all DCI in descending sub frame by base station.It is 3 that the used instruction in DCI indication code of the position of the 4th UE is active the order in the position of 3 UE, i.e. can represent that the DCI of the 4th UE is carried the 3rd position of all DCI in descending sub frame by base station, in this technical scheme, the DCI of order information and corresponding UE positional information in descending sub frame is ordering relation.

It should be noted that, above-described embodiment is all using order information as a example by positional information in descending sub frame of the DCI of UE, in actual application, order information can also be done certain mapping, order information after mapping is as positional information in descending sub frame of the DCI of UE, order information such as can do backward, and the DCI of first UE is carried last position of all DCI in descending sub frame, i.e. the 3rd position in the present embodiment by base station.The DCI of the 3rd UE is carried the penultimate position of all DCI in descending sub frame, i.e. second position in the present embodiment by base station.The DCI of the 4th UE is carried the third last position of all DCI in descending sub frame, i.e. first position in the present embodiment by base station, and in the program, the DCI of order information and corresponding UE positional information in descending sub frame is backward relation.Above-described embodiment is illustrated with 5 UE, and in actual application, the length of DCI indication code can be equal with the number of the UE that this base station under current state can be accessed, and the number of UE can be set to 100 or 500 or other numerical value according to the actual requirements.

Or order information can also be done other mapping, if the DCI of UE that order information is 1 is in second position of all DCI, order information be the DCI of the UE of 2 in the 3rd position of all DCI etc., in actual application, relation between the DCI of order information and corresponding UE positional information in descending sub frame can be other Hash relation.

The mapping in the present embodiment done order information does not limits, and illustrates the most one by one at this.

The corresponding relation figure of the order information of the UE that Fig. 3 indicates for a kind of DCI indication code provided in the embodiment of the present invention and the DCI of the UE positional information in descending sub frame, in LTE system as shown in Figure 3, corresponding DCI is discharged according to this corresponding relation in PDCCH in base station, UE is after receiving the descending sub frame that base station sends, first PCFICH is detected, determine there are how many bits (number of bits of the DCI indication code that binary bit sequence represents), and the UE that oneself is active in DCI indication code is the order at which that sorts, so, can be obtained by oneself DCI in PDCCH really location put.

In Fig. 3, in the binary bit sequence in PCFICH, bit indicates this UE to be active for " 1 ", has DCI；Indicate this UE to be in unactivated state for " 0 ", there is no DCI.Order information according to the instruction of DCI indication code and the corresponding relation with the DCI of the UE positional information in descending sub frame, it may be determined that have the DCI of user of DCI which position in all DCI that PDCCH carries.As, UE6, by demodulation PCFICH, determines oneself to be the 4th UE being active in binary bit sequence, according to the DCI mapping relations of the present embodiment, it is possible to know that the DCI position of oneself is in the region of PDCCH the 4th.

Pass through the present embodiment, UE can accurately determine the DCI of oneself position in PDCCH according to positional information in descending sub frame of the DCI of DCI indication code and UE, the DCI unrelated with oneself need not be detected, decrease empty leak detection inspection probability of happening, add control channel reliability.Simultaneously, enhance owing to controlling the reliability of channel, need not the DCI coded system (if the most widely used redundancy is 3 and above DCI coded system) using degree of polymerization high coding efficiency low, the space of so PDCCH can be reduced a lot, control channel space such that it is able to save, and then save aggregate resource.

Still optionally further, in the above-described embodiments, before step 100 " base station determines the DCI of the UE being active positional information in descending sub frame " uses the first embodiment " base station determine according to DCI indication code the DCI of the UE being active positional information in descending sub frame ", the DCI processing method of the present embodiment can also include: base station is that at least one UE in coverage configures DCI indication code.

Such as, base station is configuring DCI code when, and each corresponding UE in DCI indication code, when UE accesses and is active, can configure position corresponding for this UE in DCI indication code is 1；When UE is in unactivated state, can configure position corresponding for this UE in DCI indication code is 0；When UE does not accesses, can configure position corresponding for this UE is 0 or for empty or be other arbitrary values outside 1.

Still optionally further, after " at least one UE in base station is coverage configures DCI indication code ", the processing method of the DCI of the present embodiment can also include: base station sends DCI indication code to UE, determines the DCI of UE positional information in descending sub frame for UE according to DCI indication code.Such as UE can use the method as determining the DCI of UE positional information in descending sub frame with base station side according to DCI indication code, the DCI of acquisition UE positional information in descending sub frame, is referred to above-mentioned record in detail, does not repeats them here.

The structural representation of the binary bit sequence (bitmap) of a kind of DCI indication code that Fig. 4 provides for the embodiment of the present invention, as shown in Figure 4, the length of bitmap can change, can also be fixing, the present embodiment uses regular length, its length i.e. number of bits quantity equal to or more than the open ended UE in base station, each bit is corresponding to a UE in base station.Use binary bit sequence to represent DCI indication code, can farthest reduce resource and signaling consumption, and realize simple, save downlink resource.

Total n+1 position bit in Fig. 4, from " bit0 " to " bitn ", each bit and a UE correspondence, UE does not reserves a position online yet, reserves by heap(ed) capacity.If UE is online, in bitmap, corresponding bit position 1, otherwise sets to 0.No matter an existing community user number (i.e. the quantity of UE) is the most, mates with the bit of binary bit sequence and also will not waste very much resource.

As a example by LTE system, even if only considering information bit modulation PCFICH, in the case of coded system can be selected by base station oneself, if calculated by maximum number of user 500, bitmap resource can take 500 re(Resource Units), 40 rb(Resource Block), this is clearly acceptable for private network.In practical situation, effectively connect 50 UE while that a community can being carried out the most permissible, then will take 4rb, this is the least expense.

If the binary bit sequence that DCI indication code uses variable-length represents, certain space will be reserved for this binary bit sequence in so base station, during such as only 2 users, it is the most much of that so bitmap reserves 2 bit, take 2 re less than a rb, when there being 500 user, bitmap just extends to 500bit, farthest to make the UE being active all have corresponding bit in this binary bit sequence.In this case, when a UE access network, base station is the bit that this UE sets up that in this binary bit sequence (as increased) is corresponding；When a UE exits network, then the bit that this UE is corresponding in this binary bit sequence can be deleted in base station.In this case, the DCI indication code that binary bit sequence represents will only indicate the UE being active, and the UE in this bitmap is not the UE being in unactivated state, and the value of the bit in binary bit sequence is by identical, as being all " 1 " or " 0 ".Base station according to the requirement of business and capacity from the length of Row sum-equal matrix binary bit sequence, but can must notify that this length of UE needing to access is how many, and the position that notice UE is corresponding in DCI indication code binary bit sequence.

If it should be noted that DCI indication code carried out coding, what the most above-mentioned binary bit sequence represented is then the information bit after encoding, a corresponding UE of bit.Wherein, coded system can be selected suitable mode by those skilled in the art according to practical situation, and this is not restricted by the embodiment of the present invention.

Still optionally further, after base station configuration DCI indication code, it is also possible to comprising the steps: to carry DCI indication code in the first down control channel in descending sub frame of the base station, the first down control channel is common signal channel；

The step of now corresponding " base station sends DCI indication code to UE " may include that base station is sent in the descending sub frame carrying DCI indication code in the first down control channel to UE；

Step 101 in now corresponding embodiment illustrated in fig. 2 " base station is according to positional information in descending sub frame of the DCI of UE; carry the DCI of UE in descending sub frame ", specifically may include that the base station DCI according to UE positional information in descending sub frame, carrying DCI in the second down control channel in descending sub frame, the second down control channel is the dedicated channel of UE.

That is, now base station can carry two parts information in the descending sub frame that UE sends: DCI indication code and DCI, specifically, the first down control channel in descending sub frame carries DCI indication code, the second down control channel in descending sub frame carries DCI.After so UE receives descending sub frame, first can obtain DCI indication code from descending sub frame, and obtain the positional information of the DCI of this UE according to DCI indication code, from descending sub frame, obtain the DCI of this UE further according to the position of the DCI of this UE.

Wherein, the first down control channel is as being PCFICH, and the second down control channel can be such as PDCCH.

In the present embodiment, PCFICH is PD, and it can be demodulated by all of UE, and then determines the position of oneself DCI according to the DCI indication code demodulated.The factors such as the total capacity size of PCFICH all may affect capacity and the resource utilization of networking, if it is high to efficiency requirements, need not can reserve in the way of maximum by design PCFICH, the space of PCFICH is simply defined with a middle quantity, such as 500 is heap(ed) capacity, an average size 200 then can be selected to be used as length, when more than 200 capacity, system arises that access congestion situations, Capacity Selection is determined by networking, can be arranged a high scheme of capacity utilization by those skilled in the art according to practical situation in a base station.Behind UE persistent district, base station is added up, and first ensures that the UE accessed, in PCFICH, after user disconnects network, can re-start adjustment to the UE that PCFICH accesses.This process can be scheduling in base station, and UE can obtain the PCFICH position of oneself when accessing.It should be noted that, the binary bit sequence of the present embodiment represents that the method for DCI indication code uses fixing PCFICH space, but that represent is dynamic UE, namely the value of corresponding for UE bit can change according to the situation of UE in binary bit sequence, that such as same bit, this represents is UE-A, and that the most likely represent next time is UE-B.Further, PCFICH can be increased some resources by those skilled in the art according to system group network capacity when needed, it is preferable that PCFICH needs followed by pilot tone re(Resource Unit), i.e. all continuous in time and frequency, to ensure demodulation reliability.

Preferably, the length in encoded of the DCI in the present embodiment only one, the resource space size that i.e. DCI of each UE in base station takies in encoded in PDCCH is identical.This resource space size can be selected to arrange according to practical situation by those skilled in the art, and concrete length is not restricted.Because the Signalling length of DCI is more or less the same, both meet DCI signaling requirement after using fixing DCI coding, saved again channel space, be also convenient for UE to the lookup of respective DCI and acquisition.Certainly, being not limited to this, in actual applications, the resource space size that DCI takies in PDCCH can also be different, in this case, UE can be made to can determine the DCI position of self by suitable location lookup and location mode.

The coded system that DCI uses can be appropriately arranged with according to practical situation by those skilled in the art, the invention is not limited in this regard.Preferably, the coded system of the redundancy encoding that DCI uses redundancy to be 0 or 1, this is because the degree of polymerization of PDCCH is divided into 1,2,4,8 at present, use high polymerization degree to mean that and coding is repeated several times, this mode can make UE efficiently find the DCI of oneself in the PDCCH blind check of prior art, thus ensures to demodulate reliability.But, after have employed the scheme of the present embodiment, UE can accurately determine the DCI position of oneself according to DCI indication code, blind check, therefore, the coded system of the redundancy encoding that redundancy can be used to be 0 or 1 need not be carried out in substantial amounts of DCI, to save PDCCH resource, improve DCI and obtain efficiency.Although it addition, DCI resource space size is fixing, but the content in DCI can be divided a variety of, type territory can be set to indicate the difference of DCI information.

Preferably, the DCI of the present embodiment discharging modes in PDCCH use user's order discharge that bitmap enables, namely, the DCI mapping relations of the present embodiment are DCI according to each UE being active order order discharge in PDCCH in DCI indication code, that is, each UE being active order in all UE being active in DCI indication code is identical with the order in the DCI of this UE all DCI in the second down control channel.Certainly, in actual applications, those skilled in the art can also use, according to practical situation, the mapping relations that other is suitable, to realize determining the DCI of UE position in PDCCH by DCI indication code.

It should be noted that, the present embodiment directly employs the common channel PCFICH in LTE, in non-LTE system, the first down control channel of carrying DCI indication code is preferably common channel, in order to the DCI indication code of self can be obtained by UE completely corresponding in binary bit sequence.

It should be noted that base station can also indicate (ControlFormatIndicator in control format when of sending DCI indication code in above-described embodiment；CFI) resource taken in descending sub frame is carried DCI indication code, i.e. uses DCI indication code to substitute CFI, so can reduce the change of existing host-host protocol, simple to operate, realization convenience.

Before the second way " base station determines the DCI of UE positional information in descending sub frame according to mark and the DCI mapping relations of UE " of " base station determines the DCI of the UE being active positional information in descending sub frame " in above-described embodiment, the processing method of the DCI of the present embodiment can also comprise the steps:

A DCI mapping relations are set up in () base station；

B () base station sends DCI mapping relations to UE, determine the DCI of UE positional information in descending sub frame for UE according to the mark of DCI mapping relations and UE.In like manner with the mark of UE, UE side determines that the method for the DCI of UE positional information in descending sub frame is identical with base station side according to DCI mapping relations, is referred to the record of above-described embodiment in detail, does not repeats them here.Program respective base station side configuration DCI mapping relations, are sent to these DCI mapping relations of UE by base station.Base station to UE send the method for these DCI mapping relations send the mode of DCI indication code with base station to UE can be identical, do not repeat them here.

Still optionally further, in the alternative embodiment of embodiment illustrated in fig. 2, after no matter base station uses above-mentioned first kind of way or the second way to determine the DCI of the UE being active positional information in descending sub frame, base station can also send location notification information to UE, this location notification information is carried the DCI of the UE positional information in descending sub frame, from location notification information, obtains the DCI of UE positional information in descending sub frame for UE.The program is and determines the DCI of UE positional information in descending sub frame in base station side, and directly tell UE by the DCI of this UE positional information in descending sub frame, UE can obtain the DCI of this UE directly according to positional information in descending sub frame of the DCI of this UE from descending sub frame.DCI indication code or DCI mapping relations is sent to UE with above-mentioned base station, obtained the DCI of this UE positional information in descending sub frame by UE according to the DCI indication code received or DCI mapping relations to compare, use base directly to send location notification information to UE, transmission information is less, transfer resource can be effectively saved, and in UE side, decrease UE computation complexity, it is achieved simpler.

It should be noted that in the alternative embodiment of embodiment illustrated in fig. 2, when the DCI of multiple UE is carried at descending sub frame in base station, the resource size that the DCI of multiple UE takies in descending sub frame is identical.

The flow chart of the processing method of the DCI that Fig. 5 provides for another embodiment of the present invention.As it is shown in figure 5, the DCI processing method of the present embodiment describes technical scheme in detail in UE side.The UE of the present embodiment is the UE of state of activation.The DCI processing method of the present embodiment, specifically may include steps of:

200, the UE being active determines the DCI of UE positional information in descending sub frame；

201, UE is according to positional information in descending sub frame of the DCI of UE, obtains the DCI of UE from the descending sub frame that base station sends.

The DCI processing method of the present embodiment differs only in the processing method of the DCI of above-mentioned embodiment illustrated in fig. 2: the present embodiment describes technical scheme in UE side, and embodiment illustrated in fig. 2 describes technical scheme in base station side, therefore the detailed realization mechanism of the DCI processing method of the present embodiment can also not repeat them here with reference to the record of above-mentioned embodiment illustrated in fig. 2.

The DCI processing method of the present embodiment, by using technique scheme, UE may determine that the DCI of UE positional information in descending sub frame, and according to the DCI of this UE positional information in descending sub frame, obtains the DCI of this UE from the descending sub frame that base station sends.By using the technical scheme of the present embodiment, UE can be directly by the DCI of this UE positional information in descending sub frame, the DCI of this UE is obtained from the descending sub frame that base station sends, without detecting incoherent DCI, there is no any empty inspection probability, realize simple, it is possible to be effectively improved DCI and obtain efficiency, and the technical scheme of the present embodiment is it can be avoided that produce the probability of mistake when detecting.In addition, in the technical scheme of the present embodiment, UE is after obtaining the positional information that base station sends, only need to i.e. can determine that the DCI of self position in descending sub frame according to this positional information, obtain the DCI of this UE exactly, compared with the complicated detection mode needing to carry out m*n detection in prior art, the technical scheme of the present embodiment can be greatly saved detection resource, reduces the operation complexity of subscriber equipment.

It should be noted that on the basis of the technical scheme of above-mentioned embodiment illustrated in fig. 5, it is also possible to include following optional technical scheme, constitute the alternative embodiment of embodiment illustrated in fig. 5.

Alternatively, in the alternative embodiment of embodiment illustrated in fig. 5, the step 200 " UE being active determines the DCI of UE positional information in descending sub frame " in above-mentioned embodiment illustrated in fig. 5, specifically can be to include following three kinds of modes:

First kind of way comprises the steps:

(1) UE obtains DCI indication code, this DCI indication code be base station be at least one UE configuration in coverage；This at least one UE includes the UE in the present embodiment；It is state of activation or unactivated state that each in this DCI indication code is respectively used to indicate the state of a UE at least one UE, the state of UE therein；Such as when DCI indication code is binary code stream, the bit corresponding for UE of state of activation is 1, and the bit corresponding for UE of unactivated state is 0.

(2) UE determines the DCI of UE positional information in descending sub frame according to DCI indication code.

Alternatively, the realization of step (2), specifically may include that UE determines for indicating the position of UE in DCI indication code, all of order information being active in UE position for instruction in DCI indication code；This order information is the DCI of UE positional information in descending sub frame.

It should be noted that DCI indication code and DCI can be sent jointly to UE by base station in descending sub frame, corresponding UE side, UE both can obtain DCI indication code from descending sub frame, can obtain again DCI from descending sub frame.

Alternatively, above-mentioned steps (1) " UE obtains DCI indication code ", specifically may include that acquisition DCI indication code in the UE the first down control channel from descending sub frame, the first down control channel is common signal channel；Then the DCI of UE positional information in descending sub frame is determined according to above-mentioned steps (2) UE according to DCI indication code.

Alternatively, step 201 in now corresponding above-described embodiment " UE is according to DCI positional information in descending sub frame; obtain the DCI of UE from the descending sub frame that base station sends ", specifically may include that the UE DCI according to UE positional information in descending sub frame, obtaining the DCI of UE in the second down control channel from descending sub frame, the second down control channel is the dedicated channel of UE.

First down control channel of such as the present embodiment can be PCFICH channel, and the second down control channel can be such as PDCCH channel.

It should be noted that in above-described embodiment, base station specifically can indicate (ControlFormatIndicator in control format when of sending DCI indication code；CFI) resource taken in descending sub frame is carried DCI indication code, i.e. using DCI indication code to substitute CFI, accordingly, UE can obtain DCI indication code in the resource that prior art CFI takies in descending sub frame, so can reduce the change of existing host-host protocol, simple to operate, realization convenience.

The second way comprises the steps:

A () UE obtains the DCI mapping relations of base station configuration, these DCI mapping relations are the corresponding relation between the mark of UE and the DCI of the UE positional information in descending sub frame；

B () UE according to the mark of UE and DCI mapping relations, obtains the DCI of the UE positional information in descending sub frame.

The third mode specifically includes following steps:

(i) UE receives the location notification information that base station sends, and carries the DCI of the UE positional information in descending sub frame in location notification information；

(ii) UE obtains the DCI of UE positional information in descending sub frame from location notification information.

The DCI processing method of the alternative embodiment of this embodiment illustrated in fig. 5 differs only in the processing method of the DCI in the alternative embodiment of above-mentioned embodiment illustrated in fig. 2: the alternative embodiment of this embodiment illustrated in fig. 5 describes technical scheme in UE side, and the alternative embodiment of embodiment illustrated in fig. 2 describes technical scheme in base station side, therefore the detailed realization mechanism of the DCI processing method of the alternative embodiment of this embodiment illustrated in fig. 5 can also be recorded with reference to the alternative embodiment of above-mentioned embodiment illustrated in fig. 2, does not repeats them here.

The DCI processing method of the present embodiment, by using technique scheme, UE can be directly by the DCI of this UE positional information in descending sub frame, the DCI of this UE is obtained from the descending sub frame that base station sends, without detecting incoherent DCI, there is no any empty inspection probability, it is achieved simple, DCI can be effectively improved and obtain efficiency, and the technical scheme of the present embodiment is it can be avoided that produce the probability of mistake when detecting.In addition, in the technical scheme of the present embodiment, UE is after obtaining the positional information that base station sends, only need to i.e. can determine that the DCI of self position in descending sub frame according to this positional information, obtain the DCI of this UE exactly, compared with the complicated detection mode needing to carry out m*n detection in prior art, the technical scheme of the present embodiment can be greatly saved detection resource, reduces the operation complexity of subscriber equipment.

The signaling diagram of the DCI processing method that Fig. 6 provides for one embodiment of the invention.The present embodiment, on above-mentioned Fig. 2-embodiment illustrated in fig. 3 and the basis of alternative embodiment, is described in further detail technical scheme.As shown in Figure 6, the DCI processing method of the present embodiment, specifically may include steps of:

300, at least one UE in base station is coverage configures DCI indication code；

The position of the UE being active for instruction during 301, base station determines DCI indication code, all of order information being active in the position of UE for instruction in DCI indication code；Using order information as positional information in descending sub frame of the DCI of this UE；

302, base station is according to positional information in descending sub frame of the DCI of this UE, carries DCI indication code, carry the DCI of this UE in the PDCCH in descending sub frame in the PCFICH in descending sub frame；

303, base station sends descending sub frame to UE；

304, UE receives this descending sub frame, and obtains DCI indication code from PCFICH, and obtains the DCI of this UE positional information in descending sub frame according to DCI indication code；

Wherein to obtain the DCI of this UE positional information in descending sub frame according to DCI indication code identical with the acquisition methods that step 301 base station side obtains the DCI of this UE positional information in descending sub frame according to DCI indication code for UE.

305, UE obtains the DCI of this UE from descending sub frame according to positional information in descending sub frame of the DCI of this UE.

The signaling diagram of the DCI processing method that Fig. 7 provides for another embodiment of the present invention.The present embodiment, on above-mentioned Fig. 2-embodiment illustrated in fig. 3 and the basis of alternative embodiment, is described in further detail technical scheme.As it is shown in fig. 7, the DCI processing method of the present embodiment, specifically may include steps of:

400, DCI mapping relations are set up in base station；

In the present embodiment, these DCI mapping relations are the corresponding relation between the mark of UE and the DCI of the UE positional information in descending sub frame.

401, base station sends this DCI mapping relations to UE；

Corresponding UE side, UE receives this DCI mapping relations.

402, base station determines the DCI of UE positional information in descending sub frame according to mark and the DCI mapping relations of UE；

403, base station is according to positional information in descending sub frame of the DCI of this UE, carries the DCI of this UE in the PDCCH in descending sub frame；

404, base station sends descending sub frame to this UE；

Without the restriction of sequencing between step 401 and step 402-step 404 in the present embodiment.

405, UE receives descending sub frame, and the mark and DCI mapping relations according to UE determines the DCI of UE positional information in descending sub frame；

In this step 405 UE according to UE mark and DCI mapping relations determine the DCI of UE positional information in descending sub frame, with above-mentioned steps 402 base station according to UE mark and DCI mapping relations determine the DCI of UE positional information in descending sub frame realize identical.Realize in detail not repeat them here with reference to above-mentioned Fig. 2 or the alternative embodiment of embodiment illustrated in fig. 3.

406, UE obtains the DCI of this UE from descending sub frame according to positional information in descending sub frame of the DCI of this UE.

In above-mentioned Fig. 6 and embodiment illustrated in fig. 7, base station can not also send DCI indication code or DCI mapping relations to UE, but directly send the DCI of UE positional information in descending sub frame to UE, relative to Fig. 6 and the technical scheme of embodiment illustrated in fig. 7, the transmission of minimizing information, but also the treatment effeciency of UE side can be improved.The signaling diagram of above-mentioned Fig. 6 and embodiment illustrated in fig. 7 is only two kinds of alternatives of the embodiment of the present invention, and the process of implementing can also realize with reference to the alternative embodiment of above-mentioned Fig. 2-embodiment illustrated in fig. 3 and Fig. 2-embodiment illustrated in fig. 3, not repeat them here.

The structural representation of the base station that Fig. 8 provides for the embodiment of the present invention.As shown in Figure 8, the base station of the present embodiment, specifically may include that position determination module 10, information carry module 11 and sending module 12.

Wherein position determination module 10 is used for the DCI determining the UE being active positional information in descending sub frame；Information is carried module 11 and is connected with position determination module 10, and information carries module 11 for positional information in descending sub frame of the DCI of UE that determines according to position determination module 10, carries the DCI of UE in descending sub frame；Sending module 12 carries module 11 and is connected with information, sending module 12 carries the descending sub frame after module 11 processes for sending information to UE, for UE after obtaining the DCI positional information in descending sub frame of UE, the DCI according to UE positional information in descending sub frame, obtains the DCI of UE from descending sub frame.

The base station of the present embodiment, by using what above-mentioned module realized the process of DCI and the embodiment illustrated in fig. 2 in said method embodiment to realize identical, is referred to the record of said method embodiment in detail, does not repeats them here.

The base station of the present embodiment, by using above-mentioned module, base station can be according to the DCI of UE positional information in descending sub frame, the DCI of this UE is carried in descending sub frame, and in UE side, UE may determine that the DCI of this UE positional information in descending sub frame, and according to the DCI of this UE positional information in descending sub frame, obtains the DCI of this UE from the descending sub frame that base station sends.By using the technical scheme of the present embodiment, UE can be directly by the DCI of this UE positional information in descending sub frame, the DCI of this UE is obtained from the descending sub frame that base station sends, without detecting incoherent DCI, there is no any empty inspection probability, realize simple, it is possible to be effectively improved DCI and obtain efficiency, and the technical scheme of the present embodiment is it can be avoided that produce the probability of mistake when detecting.In addition, in the technical scheme of the present embodiment, UE is after obtaining the positional information that base station sends, only need to i.e. can determine that the DCI of self position in descending sub frame according to this positional information, obtain the DCI of this UE exactly, compared with the complicated detection mode needing to carry out m*n detection in prior art, the technical scheme of the present embodiment can be greatly saved detection resource, reduces the operation complexity of subscriber equipment.

Alternatively, on the basis of above-mentioned embodiment illustrated in fig. 8, position determination module 10 specifically for determining the DCI of the UE the being active positional information in descending sub frame according to DCI indication code, DCI indication code be base station be at least one UE configuration in coverage；At least one UE includes UE；It is state of activation or unactivated state that each in DCI indication code is respectively used to indicate the state of a UE at least one UE, state.

Still optionally further, on the basis of above-mentioned embodiment illustrated in fig. 8, the position determination module 10 all of order information being active in the position of UE for instruction specifically for determining the position of the UE being active in DCI indication code for instruction, in DCI indication code；Using order information as positional information in descending sub frame of the DCI of UE.

Alternatively, on the basis of above-mentioned embodiment illustrated in fig. 8, base station can also include: configuration module, this configuration module, for before position determination module determines the DCI of the UE being active positional information in descending sub frame according to DCI indication code, configures DCI indication code at least one UE in coverage.Not shown in Fig. 8.

Alternatively, on the basis of above-mentioned embodiment illustrated in fig. 8, sending module 12 is also connected with configuration module, after at least one UE configuration DCI indication code that sending module 12 is additionally operable in configuration module is coverage, send the DCI indication code of configuration module configuration to UE, determine the DCI of UE positional information in descending sub frame for UE according to DCI indication code.

Still optionally further, on the basis of above-mentioned embodiment illustrated in fig. 8, information carries the DCI indication code carrying configuration module configuration in the first down control channel that module 11 is additionally operable in descending sub frame, and the first down control channel is common signal channel.Sending module 12 specifically for being sent in the first down control channel the descending sub frame of the DCI indication code carrying configuration module configuration to UE；Information is carried module 11 and is additionally operable to the positional information in descending sub frame of the DCI according to UE, carries DCI in the second down control channel in descending sub frame, and the second down control channel is the dedicated channel of UE.

Alternatively, on the basis of above-mentioned embodiment illustrated in fig. 8, position determination module 10 specifically may be used for the mark according to UE and DCI mapping relations determine the DCI of UE positional information in descending sub frame；DCI mapping relations are the corresponding relation between the mark of UE and the DCI of the UE positional information in descending sub frame.

Now, alternatively, on the basis of above-mentioned embodiment illustrated in fig. 8, base station can also include setting up module: not shown in Fig. 8.This set up module in position determination module 10 according to the mark of UE with before DCI mapping relations determine the DCI of UE positional information in descending sub frame, set up DCI mapping relations；Sending module 12 also with set up module and be connected, sending module 12 is additionally operable to send to UE set up the DCI mapping relations that module is set up, and determines the DCI of UE positional information in descending sub frame for UE according to DCI mapping relations.

Alternatively, on the basis of technique scheme, after position determination module 10 determines the DCI of UE positional information in descending sub frame, sending module 12 sending module can be also used for sending location notification information to UE, this location notification information is carried the DCI of the UE positional information in descending sub frame, from location notification information, obtains the DCI of UE positional information in descending sub frame for UE.

The base station of above-described embodiment, by using what above-mentioned module realized the process of DCI and the alternative embodiment of the embodiment illustrated in fig. 2 in said method embodiment to realize identical, is referred to the record of said method embodiment in detail, does not repeats them here.

The base station of above-described embodiment, by using above-mentioned module, base station can be according to the DCI of UE positional information in descending sub frame, the DCI of this UE is carried in descending sub frame, and in UE side, UE may determine that the DCI of this UE positional information in descending sub frame, and according to the DCI of this UE positional information in descending sub frame, obtains the DCI of this UE from the descending sub frame that base station sends.By using the technical scheme of the present embodiment, UE can be directly by the DCI of this UE positional information in descending sub frame, the DCI of this UE is obtained from the descending sub frame that base station sends, without detecting incoherent DCI, there is no any empty inspection probability, realize simple, it is possible to be effectively improved DCI and obtain efficiency, and the technical scheme of the present embodiment is it can be avoided that produce the probability of mistake when detecting.In addition, in the technical scheme of the present embodiment, UE is after obtaining the positional information that base station sends, only need to i.e. can determine that the DCI of self position in descending sub frame according to this positional information, obtain the DCI of this UE exactly, compared with the complicated detection mode needing to carry out m*n detection in prior art, the technical scheme of the present embodiment can be greatly saved detection resource, reduces the operation complexity of subscriber equipment.

The structural representation of the UE that Fig. 9 provides for one embodiment of the invention.As it is shown in figure 9, the UE of the present embodiment, specifically may include that and determine module 20 and acquisition module 21.

Wherein determine that module 20 is for determining DCI positional information in descending sub frame；Acquisition module 21 with determine that module 20 is connected, acquisition module 21 is for according to determining DCI that module 20 the determines positional information in descending sub frame, obtaining DCI from the descending sub frame that base station sends.

The UE of the present embodiment, by using what above-mentioned module realized the process of DCI and the embodiment illustrated in fig. 5 in said method embodiment to realize identical, is referred to the record of said method embodiment in detail, does not repeats them here.

The UE of the present embodiment, by using above-mentioned module UE to may determine that the DCI of UE positional information in descending sub frame, and according to the DCI of this UE positional information in descending sub frame, obtains the DCI of this UE from the descending sub frame that base station sends.By using the technical scheme of the present embodiment, UE can be directly by the DCI of this UE positional information in descending sub frame, the DCI of this UE is obtained from the descending sub frame that base station sends, without detecting incoherent DCI, there is no any empty inspection probability, realize simple, it is possible to be effectively improved DCI and obtain efficiency, and the technical scheme of the present embodiment is it can be avoided that produce the probability of mistake when detecting.In addition, in the technical scheme of the present embodiment, UE is after obtaining the positional information that base station sends, only need to i.e. can determine that the DCI of self position in descending sub frame according to this positional information, obtain the DCI of this UE exactly, compared with the complicated detection mode needing to carry out m*n detection in prior art, the technical scheme of the present embodiment can be greatly saved detection resource, reduces the operation complexity of subscriber equipment.

The structural representation of the UE that Figure 10 provides for another embodiment of the present invention.As shown in Figure 10, the UE of this enforcement, on the basis of above-mentioned embodiment illustrated in fig. 9, specifically can also include following optional technical scheme.

In the UE of the present embodiment, determine that module 20 specifically may include that acquiring unit 201 and determines unit 202.Wherein acquiring unit 201 is used for obtaining DCI indication code, DCI indication code be base station be at least one UE configuration in coverage；At least one UE includes UE；It is state of activation or unactivated state that each in DCI indication code is respectively used to indicate the state of a UE at least one UE, state；Determine that unit 202 is connected with acquiring unit 201, determine that unit 202 determines the DCI of UE positional information in descending sub frame for the DCI indication code obtained according to acquiring unit 201.

Still optionally further, the UE of the present embodiment determine for indicating the position of UE in the DCI indication code that unit 202 obtains specifically for determining acquiring unit 201, all of order information being active in UE position for instruction in DCI indication code；This order information is the DCI of UE positional information in descending sub frame.

Still optionally further, in the UE of the present embodiment, acquiring unit 201 is specifically for obtaining DCI indication code in the first down control channel from descending sub frame, and this first down control channel is common signal channel.The all of order information being active in UE position for instruction by determining that unit 202 determines for indicating the position of UE in the DCI indication code that acquiring unit 201 obtains, in DCI indication code.

Corresponding acquisition module 21 is specifically for according to determining the DCI of UE that unit 202 the determines positional information in descending sub frame, obtaining the DCI of UE in the second down control channel from descending sub frame, this second down control channel is the dedicated channel of UE.

Or alternatively, in the UE of the present embodiment, determine module 20 specifically for obtaining the DCI mapping relations of base station configuration, DCI mapping relations are the corresponding relation between the mark of UE and the DCI of the UE positional information in descending sub frame；Mark according to UE and DCI mapping relations, the DCI of acquisition UE positional information in descending sub frame.

Or alternatively, in the UE of the present embodiment, determine that module 20 is specifically additionally operable to receive the location notification information that base station sends, location notification information is carried the DCI of the UE positional information in descending sub frame；The DCI of the UE positional information in descending sub frame is obtained from location notification information.

The UE of the present embodiment, by using what above-mentioned module realized the process of DCI and the alternative embodiment of the embodiment illustrated in fig. 5 in said method embodiment to realize identical, is referred to the record of said method embodiment in detail, does not repeats them here.

The structural representation of the processing system of the DCI that Figure 11 provides for the embodiment of the present invention.As shown in figure 11, the DCI processing system of the present embodiment, specifically can include base station 30 and UE40.

Wherein base station 30 is used for the DCI determining the UE40 being active positional information in descending sub frame；The DCI according to the UE determined positional information in descending sub frame, carries the DCI of UE in descending sub frame；And send this descending sub frame to UE40.

UE40 is for determining DCI positional information in descending sub frame；According to the DCI determined positional information in receiving the descending sub frame that base station 30 sends, from the descending sub frame that base station 30 sends, obtain DCI.

Base station 30 in the DCI processing system of the present embodiment specifically can use the base station in the follow-up alternative embodiment of above-mentioned embodiment illustrated in fig. 8 or embodiment illustrated in fig. 8, and UE40 specifically can use the UE of above-mentioned Fig. 9 or embodiment illustrated in fig. 10；And the DCI processing method of above-mentioned Fig. 2, Fig. 5, Fig. 6 and embodiment illustrated in fig. 7 can be used in detail to realize corresponding process.It is referred to the record of above-mentioned related embodiment in detail, does not repeats them here.

The DCI processing system of the present embodiment, by using above-mentioned base station and UE, so that UE directly determines the DCI of UE positional information in descending sub frame, and according to the DCI of this UE positional information in descending sub frame, from the descending sub frame that base station sends, obtain the DCI of this UE.By using the technical scheme of the present embodiment, UE can be directly by the DCI of this UE positional information in descending sub frame, the DCI of this UE is obtained from the descending sub frame that base station sends, without detecting incoherent DCI, there is no any empty inspection probability, realize simple, it is possible to be effectively improved DCI and obtain efficiency, and the technical scheme of the present embodiment is it can be avoided that produce the probability of mistake when detecting.In addition, in the technical scheme of the present embodiment, UE is after obtaining the positional information that base station sends, only need to i.e. can determine that the DCI of self position in descending sub frame according to this positional information, obtain the DCI of this UE exactly, compared with the complicated detection mode needing to carry out m*n detection in prior art, the technical scheme of the present embodiment can be greatly saved detection resource, reduces the operation complexity of subscriber equipment.

It should be noted that, multiple embodiments of the present invention are all as a example by LTE system, but it is not limited to this, the DCI of the present invention sends, acquisition scheme applies also for other wireless OFDM network, such as wireless OFDM dedicated network etc., by the first down control channel and second down control channel of carrying DCI of carrying control format instruction, the solution of the present invention all can be realized.

Each embodiment in this specification all uses the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, and between each embodiment, identical similar part sees mutually.For device and system embodiment, due to itself and embodiment of the method basic simlarity, so describe is fairly simple, relevant part sees the part of embodiment of the method and illustrates.

Above to a kind of DCI processing method provided herein and system, base station and UE, it is described in detail, principle and the embodiment of the application are set forth by specific case used herein, and the explanation of above example is only intended to help and understands the present processes and core concept thereof；Simultaneously for one of ordinary skill in the art, according to the thought of the application, the most all will change, in sum, this specification content should not be construed as the restriction to the application.

Claims

1. the processing method of a Downlink Control Information, it is characterised in that including:

Described base station sends described descending sub frame to described subscriber equipment, for described subscriber equipment after obtaining the Downlink Control Information positional information in described descending sub frame of described subscriber equipment, the Downlink Control Information according to described subscriber equipment positional information in described descending sub frame, obtains the Downlink Control Information of described subscriber equipment from described descending sub frame；

Described base station determines that the step of the Downlink Control Information of the subscriber equipment being active positional information in descending sub frame includes: described base station sends location notification information to described subscriber equipment, described location notification information is carried the Downlink Control Information of the described subscriber equipment positional information in described descending sub frame, from described location notification information, obtains the Downlink Control Information of described subscriber equipment positional information in described descending sub frame for described subscriber equipment；

Described base station determines that the step of the Downlink Control Information of the subscriber equipment being active positional information in descending sub frame also includes: described base station determines the Downlink Control Information of described subscriber equipment positional information in described descending sub frame according to mark and the Downlink Control Information mapping relations of described subscriber equipment；Described Downlink Control Information mapping relations are the corresponding relation between the mark of described subscriber equipment and the Downlink Control Information of the described subscriber equipment positional information in described descending sub frame.

Method the most according to claim 1, it is characterised in that described base station determines that the step of the Downlink Control Information of the subscriber equipment being active positional information in descending sub frame also includes:

Described base station determines the Downlink Control Information of the described subscriber equipment being active positional information in described descending sub frame according to Downlink Control Information indication code, described Downlink Control Information indication code be described base station be at least one user device configuration in coverage；At least one subscriber equipment described includes described subscriber equipment；Each in described Downlink Control Information indication code is respectively used to the state of a subscriber equipment in instruction at least one subscriber equipment described, and described state is state of activation or unactivated state.

Method the most according to claim 2, it is characterised in that described base station determines that according to Downlink Control Information indication code the step of the Downlink Control Information of the described subscriber equipment being active positional information in described descending sub frame includes:

Described base station determines the position of the described subscriber equipment being active in described Downlink Control Information indication code for instruction, all of order information being active in the position of subscriber equipment for instruction in described Downlink Control Information indication code；

Described base station using described order information as positional information in described descending sub frame of the Downlink Control Information of described subscriber equipment.

The most according to the method in claim 2 or 3, it is characterized in that, before described base station determines the Downlink Control Information of the described subscriber equipment being active positional information in described descending sub frame according to Downlink Control Information indication code, described method also includes:

Described base station is Downlink Control Information indication code described at least one user device configuration described in coverage.

Method the most according to claim 4, it is characterised in that after described base station is Downlink Control Information indication code described at least one user device configuration described in coverage, described method also includes:

Described base station sends described Downlink Control Information indication code to described subscriber equipment, determines the Downlink Control Information of described subscriber equipment positional information in described descending sub frame for described subscriber equipment according to described Downlink Control Information indication code.

Method the most according to claim 5, it is characterised in that described method also includes:

Described Downlink Control Information indication code is carried in described base station in the first down control channel in described descending sub frame, described first down control channel is common signal channel；

The step that described base station sends described Downlink Control Information indication code to described subscriber equipment includes:

Described base station is sent in the described descending sub frame carrying described Downlink Control Information indication code in described first down control channel to described subscriber equipment；

The Downlink Control Information of described subscriber equipment, according to positional information in described descending sub frame of the Downlink Control Information of described subscriber equipment, is carried in described descending sub frame in described base station, including:

Described base station is according to positional information in described descending sub frame of the Downlink Control Information of described subscriber equipment, carrying described Downlink Control Information in the second down control channel in described descending sub frame, described second down control channel is the dedicated channel of described subscriber equipment.

Method the most according to claim 1, it is characterized in that, before described base station determines the Downlink Control Information of described subscriber equipment positional information in described descending sub frame according to the mark of described subscriber equipment and Downlink Control Information mapping relations, described method also includes:

Described Downlink Control Information mapping relations are set up in described base station；

Described base station sends described Downlink Control Information mapping relations to described subscriber equipment, determines the Downlink Control Information of described subscriber equipment positional information in described descending sub frame for described subscriber equipment according to the mark of described Downlink Control Information mapping relations and described subscriber equipment.

Method the most according to claim 1, it is characterized in that, when the Downlink Control Information of multiple described subscriber equipment is carried at described descending sub frame in described base station, the resource size that the Downlink Control Information of multiple described subscriber equipmenies takies in described descending sub frame is identical.

9. the processing method of a Downlink Control Information, it is characterised in that including:

Described subscriber equipment, according to positional information in descending sub frame of the Downlink Control Information of described subscriber equipment, obtains the Downlink Control Information of described subscriber equipment from the described descending sub frame that base station sends；

The described subscriber equipment being active determines that the step of the Downlink Control Information of described subscriber equipment positional information in descending sub frame includes: described subscriber equipment receives the location notification information that described base station sends, and carries the Downlink Control Information of the described subscriber equipment positional information in described descending sub frame in described location notification information；Described subscriber equipment obtains the Downlink Control Information of described subscriber equipment positional information in described descending sub frame from described location notification information；

The described subscriber equipment being active determines that the step of the Downlink Control Information of described subscriber equipment positional information in descending sub frame also includes: described subscriber equipment obtains the Downlink Control Information mapping relations of described base station configuration, and described Downlink Control Information mapping relations are the corresponding relation between the mark of described subscriber equipment and the Downlink Control Information of the described subscriber equipment positional information in described descending sub frame；

Described subscriber equipment according to the mark of described subscriber equipment and described Downlink Control Information mapping relations, obtains the Downlink Control Information of the described subscriber equipment positional information in described descending sub frame.

Method the most according to claim 9, it is characterised in that described in the subscriber equipment that is active determine that the step of the Downlink Control Information of described subscriber equipment positional information in descending sub frame also includes:

Described subscriber equipment obtains Downlink Control Information indication code, described Downlink Control Information indication code be described base station be at least one user device configuration in coverage；At least one subscriber equipment described includes described subscriber equipment；Each in described Downlink Control Information indication code is respectively used to the state of a subscriber equipment in instruction at least one subscriber equipment described, and described state is state of activation or unactivated state；

Described subscriber equipment determines the Downlink Control Information of described subscriber equipment positional information in descending sub frame according to described Downlink Control Information indication code.

11. methods according to claim 10, it is characterised in that according to described Downlink Control Information indication code, described subscriber equipment determines that the step of the Downlink Control Information of described subscriber equipment positional information in descending sub frame includes:

Described subscriber equipment determines for indicating the position of described subscriber equipment in described Downlink Control Information indication code, all of order information being active in subscriber equipment position for instruction in described Downlink Control Information indication code；Described order information is the Downlink Control Information of described subscriber equipment positional information in described descending sub frame.

12. according to the method described in claim 10 or 11, it is characterised in that described subscriber equipment obtains the step of Downlink Control Information indication code and includes:

Described subscriber equipment obtains described Downlink Control Information indication code in the first down control channel from described descending sub frame, described first down control channel is common signal channel；

Described subscriber equipment is according to described Downlink Control Information positional information in described descending sub frame, and the step of the Downlink Control Information obtaining described subscriber equipment from the described descending sub frame that described base station sends includes:

Described subscriber equipment is according to positional information in described descending sub frame of the Downlink Control Information of described subscriber equipment, obtaining the Downlink Control Information of described subscriber equipment in the second down control channel from described descending sub frame, described second down control channel is the dedicated channel of described subscriber equipment.

13. 1 kinds of base stations, it is characterised in that including:

Sending module, for sending described descending sub frame to described subscriber equipment, for described subscriber equipment after obtaining the Downlink Control Information positional information in described descending sub frame of described subscriber equipment, the Downlink Control Information according to described subscriber equipment positional information in described descending sub frame, obtains the Downlink Control Information of described subscriber equipment from described descending sub frame；

Described sending module, it is additionally operable to send location notification information to described subscriber equipment, described location notification information is carried the Downlink Control Information of the described subscriber equipment positional information in described descending sub frame, from described location notification information, obtains the Downlink Control Information of described subscriber equipment positional information in described descending sub frame for described subscriber equipment；

Described position determination module, is additionally operable to the mark according to described subscriber equipment and Downlink Control Information mapping relations determine the Downlink Control Information of described subscriber equipment positional information in described descending sub frame；Described Downlink Control Information mapping relations are the corresponding relation between the mark of described subscriber equipment and the Downlink Control Information of the described subscriber equipment positional information in described descending sub frame.

14. base stations according to claim 13, it is characterized in that, described position determination module, specifically be additionally operable to the Downlink Control Information determining the described subscriber equipment being active according to Downlink Control Information indication code positional information in described descending sub frame, described Downlink Control Information indication code be described base station be at least one user device configuration in coverage；At least one subscriber equipment described includes described subscriber equipment；Each in described Downlink Control Information indication code is respectively used to the state of a subscriber equipment in instruction at least one subscriber equipment described, and described state is state of activation or unactivated state.

15. base stations according to claim 14, it is characterized in that, described position determination module, the all of order information being active in the position of subscriber equipment for instruction specifically for determining the position of the described subscriber equipment being active in described Downlink Control Information indication code for instruction, in described Downlink Control Information indication code；Using described order information as positional information in described descending sub frame of the Downlink Control Information of described subscriber equipment.

16. according to the base station described in claims 14 or 15, it is characterised in that also include:

Configuration module, before determine the Downlink Control Information of the described subscriber equipment the being active positional information in described descending sub frame according to Downlink Control Information indication code in described position determination module, for Downlink Control Information indication code described at least one user device configuration described in coverage.

17. base stations according to claim 16, it is characterized in that: described sending module, after being additionally operable to Downlink Control Information indication code described at least one user device configuration described in described configuration module is coverage, send described Downlink Control Information indication code to described subscriber equipment, determine the Downlink Control Information of described subscriber equipment positional information in described descending sub frame for described subscriber equipment according to described Downlink Control Information indication code.

18. base stations according to claim 17, it is characterised in that:

Described information carries module, is additionally operable in the first down control channel in described descending sub frame carry described Downlink Control Information indication code, and described first down control channel is common signal channel；

Described sending module, specifically for being sent in the described descending sub frame carrying described Downlink Control Information indication code in described first down control channel to described subscriber equipment；

Described information carries module, it is additionally operable to the positional information in described descending sub frame of the Downlink Control Information according to described subscriber equipment, carrying described Downlink Control Information in the second down control channel in described descending sub frame, described second down control channel is the dedicated channel of described subscriber equipment.

19. base stations according to claim 13, it is characterised in that also include:

Set up module, before determining the Downlink Control Information of described subscriber equipment positional information in described descending sub frame in described position determination module according to the mark of described subscriber equipment and Downlink Control Information mapping relations, set up described Downlink Control Information mapping relations；

Described sending module, it is additionally operable to send described Downlink Control Information mapping relations to described subscriber equipment, determines the Downlink Control Information of described subscriber equipment positional information in described descending sub frame for described subscriber equipment according to the mark of described Downlink Control Information mapping relations and described subscriber equipment.

20. 1 kinds of subscriber equipmenies, it is characterised in that including:

Acquisition module, for according to described Downlink Control Information positional information in described descending sub frame, obtaining described Downlink Control Information from the described descending sub frame that base station sends；

Described determine module, specifically for receiving the location notification information that described base station sends, described location notification information is carried the Downlink Control Information of the described subscriber equipment positional information in described descending sub frame；The Downlink Control Information of the described subscriber equipment positional information in described descending sub frame is obtained from described location notification information；

Described determine module, specifically being additionally operable to obtain the Downlink Control Information mapping relations of described base station configuration, described Downlink Control Information mapping relations are the corresponding relation between the Downlink Control Information of the mark of described subscriber equipment and described subscriber equipment positional information in described descending sub frame；Mark according to described subscriber equipment and described Downlink Control Information mapping relations, obtain the Downlink Control Information of the described subscriber equipment positional information in described descending sub frame.

21. subscriber equipmenies according to claim 20, it is characterised in that described determine that module includes:

Acquiring unit, is used for obtaining Downlink Control Information indication code, described Downlink Control Information indication code be described base station be at least one user device configuration in coverage；At least one subscriber equipment described includes described subscriber equipment；Each in described Downlink Control Information indication code is respectively used to the state of a subscriber equipment in instruction at least one subscriber equipment described, and described state is state of activation or unactivated state；

Determine unit, for determining the Downlink Control Information of described subscriber equipment positional information in descending sub frame according to described Downlink Control Information indication code.

22. subscriber equipmenies according to claim 21, it is characterized in that, described determine unit, the all of order information being active in subscriber equipment position for instruction for determining for indicating the position of described subscriber equipment in described Downlink Control Information indication code, in described Downlink Control Information indication code；Described order information is the Downlink Control Information of described subscriber equipment positional information in described descending sub frame.

23. according to the subscriber equipment described in claim 21 or 22, it is characterised in that:

Described acquiring unit, specifically for obtaining described Downlink Control Information indication code in the first down control channel from described descending sub frame, described first down control channel is common signal channel；

Described acquisition module, specifically for the positional information in described descending sub frame of the Downlink Control Information according to described subscriber equipment, obtaining the Downlink Control Information of described subscriber equipment in the second down control channel from described descending sub frame, described second down control channel is the dedicated channel of described subscriber equipment.

The processing system of 24. 1 kinds of Downlink Control Information, it is characterised in that include the as above arbitrary described base station of claim 13-19 and the as above arbitrary described subscriber equipment of claim 20-23.