CN108282291A

CN108282291A - A kind of DCI transmission methods, UE and network side equipment

Info

Publication number: CN108282291A
Application number: CN201710010099.7A
Authority: CN
Inventors: 王磊; 艾托尼; 潘学明
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2017-01-06
Filing date: 2017-01-06
Publication date: 2018-07-13
Anticipated expiration: 2037-01-06
Also published as: CN108282291B; WO2018127241A1

Abstract

A kind of DCI transmission methods of present invention offer, UE and network side equipment, this method may include：UE receives and parses through first part's control information that DCI includes by blind examination PDCCH, wherein first part's control information includes fixed information field, and described information domain includes the reception information for the second part control information that the DCI includes；The UE receives and parses through the second part according to the reception information and controls information.The embodiment of the present invention can reduce the blind examination complexity that UE receives DCI, and reduce UE power consumptions.

Description

A kind of DCI transmission methods, UE and network side equipment

Technical field

The present invention relates to field of communication technology, more particularly to a kind of Downlink Control Information (Downlink Control Information, DCI) transmission method, user terminal (UE, User Equipment) and network side equipment.

Background technology

At present in long term evolution (Long Term Evolution, LTE) system, different transmission mode and different Transmission direction all has different Downlink Control Information (Downlink Control Information, DCI) format (format).In addition, in order to adapt to different channel conditions, introduce different polymerization grades (Aggregation Level, AL).UE is needed in public search space (Common Search Space, CSS) or user-specific search space (UE- Specific Search Space, USS) in, DCI format desirably are used in different AL blind examinations search spaces All Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH) are candidate (candidate) Resource.However, in following wireless communication system, need the type of service supported and scene more various.

In order to ensure transmission mode, transmitting scene and the diversity of type of service, while considering forward compatibility, UE Need the DCI format supported can be more various.Since in current communication system, UE is needed according to multiple possible DCI Format attempts blind examination on multiple and different AL, and different DCIformat is applied to different transmission mode or service class Type, can be very high to the blind examination complexity of UE, and the power consumption of terminal is very high.Such as the UE for a support TM4, at least need Blind examination is carried out according to DCI format 0, DCI format1A and DCI format2.If UE notices support uplink how defeated Enter multi output (Uplink Multiple-Input Multiple-Output, UL MIMO), then also needs to according to DCI Format 4 carries out blind examination.Such as：In USS, 4 kinds of AL totally 16 candidate are supported.Then theoretically the UE in USS domestic demands Want blind examination 32 or 48 times.As it can be seen that at present UE receive DCI blind examination complexity can very high and UE power consumptions it is very high.

Invention content

The purpose of the present invention is to provide a kind of DCI transmission methods, UE and network side equipments, receive DCI's to solve UE The problem that blind examination complexity can be very high and UE power consumptions are very high.

In order to achieve the above object, the embodiment of the present invention provides a kind of downlink control information transmission method, including：

UE receives and parses through first part's control information that DCI includes, wherein the first part by blind examination PDCCH Control information includes fixed information field, and described information domain includes the reception letter for the second part control information that the DCI includes Breath；

The UE receives and parses through the second part according to the reception information and controls information.

Optionally, the UE receives and parses through first part's control information that DCI includes by blind examination PDCCH, including：

The UE is received and parsed through by blind examination PDCCH in the PDCCH candidate resources in its search space The first part that DCI includes controls information.

Optionally, the user terminal parses AL of the first part's control information independently of the PDCCH.

Optionally, first part's control information includes the information field that fixed information field is fix information type.

Optionally, the format of second part control information with following at least one is corresponding：

What the type of service of network side equipment scheduling, the transmission mode of network side equipment scheduling or network side equipment were dispatched Terminal type.

Optionally, the reception information includes at least one of following：

Format information, the AL information of the PDCCH and the second part control of the second part control information Number of resources shared by information.

Optionally, the UE receives and parses through the second part according to the reception information and controls information, including：

If described receive the format information that information includes the second part control information, the UE receives second part It controls information and the parsing second part is attempted according to different AL according to the format information and control information；Or

If the information that receives includes the format information of the second part control information and the AL letters of the PDCCH Breath, the user terminal receive second part control information and according to the format information according to the AL information of the PDCCH Parse the second part control information, wherein the AL information includes AL or the AL information instruction of the PDCCH The AL of the PDCCH is the AL that the current blind examination of the user terminal controls that information is used to the first part；Or

If described receive the format and second part control information that information includes the second part control information Shared number of resources, the user terminal receive second part control information and according to the format information according to described second Number of resources shared by part control information parses the second part and controls information.

Optionally, first part's control information and second part control information MAP continuously control letter at same group On road unit (Control Channel Element, CCE)；

The UE receives and parses through the second part according to the reception information and controls information, including：

The UE is received on the continuous CCE for receiving first part's control information according to the reception information And parse the second part control information.

Optionally, the information that receives includes the format information of second part control information, and further include as It is at least one of lower：

Resource shared by the mapping resource location information and second part control information of the second part control information Number；

The user terminal receives and parses through the second part according to the reception information and controls information, including：

If the mapping resource location information that information includes second part control information and second described of receiving The format information of sub-control information, the user terminal connect on the resource location that the mapping resource location information indicates It receives second part control information and the parsing second part control letter is attempted according to different AL according to the format information Breath；Or

If described receive mapping resource location information, the second part that information includes the second part control information The format and the second part for controlling information control number of resources shared by information, and the user terminal is in the mapping resource On the resource location that location information indicates, second part control information is received and according to the format information according to described second Number of resources shared by part control information parses the second part and controls information.

The embodiment of the present invention also provides a kind of downlink control information transmission method, including：

Network side equipment controls the first part of DCI in information and second part control information MAP to same PDCCH Transmission, wherein first part control information includes fixed information field, and described information domain includes that the DCI includes Two parts control the reception information of information.

The type of service of the network side equipment scheduling, the transmission mode of network side equipment scheduling or the network The terminal type of side apparatus scheduling.

Optionally, the reception information includes at least one of following：

Optionally, first part's control information and second part control information are passed using different transmission blocks It is defeated, and first part control information and the second part control information after channel coding, and information bit is carried out Cascade.

Optionally, first part's control information and second part control information MAP on same group of continuous CCE.

Optionally, the mapping resource location of the second part control information is notified by first part control information, And the information that receives includes the format information that the second part controls information, and further include at least one of following：

Resource shared by the mapping resource location information and second part control information of the second part control information Number.

The embodiment of the present invention also provides a kind of UE, including：

Blind examination module, for by blind examination PDCCH, receiving and parsing through first part's control information that DCI includes, wherein First part's control information includes fixed information field, and described information domain includes the second part control that the DCI includes The reception information of information；

Parsing module is received, information is controlled for receiving and parsing through the second part according to the reception information.

Optionally, the blind examination module is for passing through blind examination in the PDCCH candidate resources in its search space PDCCH receives and parses through first part's control information that DCI includes.

Optionally, the reception information includes at least one of following：

Optionally, if the reception parsing module for the reception information includes that the second part controls information Format receives second part control information and attempts described second of parsing according to different AL according to the format information Sub-control information；Or

If the parsing module that receives receives the format letters that information includes the second part control information for described The AL information of breath and the PDCCH receives second part control information and according to the format information according to the PDCCH's AL information parses the second part and controls information, wherein the AL information includes AL or the AL letter of the PDCCH Breath indicates that the AL of the PDCCH is the AL that the current blind examination of the user terminal controls that information is used to the first part；Or

If it is described receive parsing module for the reception information include second part control information format and Number of resources shared by second part control information, receive second part control information and according to the format information according to Number of resources shared by the second part control information parses the second part and controls information.

Optionally, first part's control information and second part control information MAP on same group of continuous CCE；

The parsing module that receives is used in the continuous CCE for receiving first part's control information, according to institute It states reception information and receives and parses through the second part control information.

If the parsing module that receives receives the mapping resource that information includes the second part control information for described The format information of location information and second part control information, in the resource-niche that the mapping resource location information indicates It sets, receive second part control information and the parsing second part is attempted according to different AL according to the format information Control information；Or

If the parsing module that receives receives the mapping resource that information includes the second part control information for described Number of resources shared by location information, the format of second part control information and second part control information, in institute It states on the resource location that mapping resource location information indicates, receive second part control information and is pressed according to the format information The second part, which is parsed, according to number of resources shared by second part control information controls information.

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

Transmission module, for the first part of DCI to be controlled information and second part control information MAP to same downlink It is transmitted in control channel, wherein first part's control information includes fixed information field, and described information domain includes described The reception information for the second part control information that DCI includes.

Optionally, the reception information includes at least one of following：

The above-mentioned technical proposal of the present invention at least has the advantages that：

The embodiment of the present invention, UE receive and parse through first part's control information that DCI includes by blind examination PDCCH, In, first part's control information includes fixed information field, and described information domain includes the second part control that the DCI includes The reception information of information processed；The UE receives and parses through the second part according to the reception information and controls information.Due to Part control information includes fixed information field, to which UE need not carry out blind examination according to multiple DCI format, and can be with The reception information for including using first part's control information parses second part and controls information, so as to reduce UE blind examinations Number to reach the blind examination complexity for reducing UE and receiving DCI, and reduces the purpose of UE power consumptions.

Description of the drawings

Fig. 1 is schematic network structure provided in an embodiment of the present invention；

Fig. 2 is a kind of flow chart of downlink control information transmission method provided in an embodiment of the present invention；

Fig. 3 is a kind of structure chart of Downlink Control Information transmission provided in an embodiment of the present invention；

Fig. 4 is the structure chart of another Downlink Control Information transmission provided in an embodiment of the present invention；

Fig. 5 is the structure chart of another Downlink Control Information transmission provided in an embodiment of the present invention；

Fig. 6 is the structure chart of another Downlink Control Information transmission provided in an embodiment of the present invention；

Fig. 7 is the structure chart of another Downlink Control Information transmission provided in an embodiment of the present invention；

Fig. 8 is the structure chart of another Downlink Control Information transmission provided in an embodiment of the present invention；

Fig. 9 is the structure chart of another Downlink Control Information transmission provided in an embodiment of the present invention；

Figure 10 is the flow chart of another downlink control information transmission method provided in an embodiment of the present invention；

Figure 11 is a kind of structure chart of UE provided in an embodiment of the present invention；

Figure 12 is a kind of structure chart of network side equipment provided in an embodiment of the present invention；

Figure 13 is the structure chart of another kind UE provided in an embodiment of the present invention；

Figure 14 is the structure chart of another network side equipment provided in an embodiment of the present invention.

Specific implementation mode

To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool Body embodiment is described in detail.

Referring to Fig. 1, Fig. 1 is schematic network structure provided in an embodiment of the present invention, as shown in Figure 1, including UE11 and net Network equipment 12, wherein UE11 can be mobile phone, tablet computer (Tablet Personal Computer), laptop computer (Laptop Computer), personal digital assistant (personal digital assistant, abbreviation PDA), mobile Internet access dress The terminal side equipments such as (Mobile Internet Device, MID) or wearable device (Wearable Device) are set, are needed It is noted that not limiting the concrete type of UE11 in embodiments of the present invention.UE11 can establish logical with the network equipment 12 Letter, wherein the network in attached drawing can indicate that UE11 is wirelessly established with the network equipment 12 and communicate that the network equipment 12 can be base It stands, wherein base station can be macro station, such as LTE eNB, 5G NR NB or gNB；Can also be small station, such as low power nodes (LPN：Low power node) small stations such as pico, femto, or can be access point (AP, access point)；Network is set Standby 12 can also be central location (CU, central unit), or can be CU management and control transmission receiving point (TRP, Transmission Reception Point).In addition, network equipment 12 times there are one or multiple cells (such as：It is different Frequency point or sector division).It should be noted that not limiting the concrete type of the network equipment 12 in embodiments of the present invention.

Referring to Fig. 2, the embodiment of the present invention provides a kind of downlink control information transmission method, as shown in Fig. 2, including following step Suddenly：

201, UE receives and parses through first part's control information that DCI includes, wherein described first by blind examination PDCCH Part control information includes fixed information field, and described information domain includes connecing for the second part control information that the DCI includes It collects mail and ceases；

202, the UE receives and parses through the second part according to the reception information and controls information.

Wherein, step 201 can be that UE uses different AL blind examination PDCCH, since first part controls the information of information Domain is fixed, then, no matter which AL is first part's control information be, UE can parse first part's control information.And due to The information field of first part's control information is fixed, i.e., the transmission mode for the information field and UE that first part's control information includes, with And type of service of UE etc. is unrelated, to which UE need not carry out blind examination according to multiple format, and can use first part The reception information that control information includes parses second part control information, so as to reduce the blind examination number of UE.

In addition, above-mentioned reception information can receive and parse through the related letter that the second part controls information for UE Breath, such as：The AL of format, PDCCH of second part control information or：The shared money of second part control information Source information etc..

After UE, which parses above-mentioned first part, controls information, so that it may to acquire above-mentioned reception information, so as to use The reception information receives and parses through the second part control information, without carrying out blind examination, the i.e. embodiment of the present invention again In, it is only necessary to blind examination gets first part's control information, then the reception information for including based on first part's control information, receives And parse the second part control information.

In addition, in the embodiment of the present invention, the content for including to second part control information is not construed as limiting, second part control The content that information includes can be that network side equipment needs any content for being sent to UE.

In the embodiment of the present invention, may be implemented through the above steps a DCI include two independent parts, i.e., first Sub-control information and second part control information, and UE blind examination down control channels in its search space parse first first Part control information, and information is controlled according to first part and knows that how to receive second part controls information, and UE is reduced to reach The blind examination complexity of DCI is received, and reduces the purpose of UE power consumptions.

Optionally, in the embodiment of the present invention, above-mentioned UE receives and parses through the first part that DCI includes by blind examination PDCCH Information is controlled, including：

Wherein, above-mentioned search space can be USS or CSS, and above-mentioned PDCCH candidate resources can be above-mentioned Multiple candidate resources in search space, and a resource location of this multiple candidate resource can be it is predefined or Person configures or determines by other means, and there are a unified resource location understood in the sides UE and network side equipment side, in this way can be with Realize that UE need not carry out blind examination on excessive resource location, to be further reduced the number of blind examination.

And UE can be that UE is searched at it by blind examination PDCCH in the PDCCH candidate resources in its search space Blind examination PDCCH successively in the PDCCH candidate resources in rope space, until completing to all PDCCH candidate resources Blind examination, either until UE has been successfully received above-mentioned first part control information or receives the institute received required for UE There is DCI.

Optionally, in the embodiment of the present invention, the user terminal parses the first part and controls information independently of described The AL of PDCCH.

In the embodiment, user terminal parses first part control information can be with independently of the AL of the PDCCH It is interpreted as, UE parsings first part control information requires no knowledge about the AL of PDCCH actual uses, so as to reduce UE and network Signalling exchange before side, with saving signaling expense.

Optionally, in the embodiment of the present invention, it is fix information that first part's control information, which includes fixed information field, The information field of type.

Wherein, the information field of fix information type includes information type it is to be understood that first part controls information here, It includes information field it is unrelated with the transmission mode of UE, type of service etc..Since the information field that first part controls information is solid Determine the information field of information type, such UE according to multiple format there is no need to carry out blind examination, to reduce the number of blind examination.Separately Outside, fix information type can be that UE is known in advance here, such as：UE is consulted in advance with network side equipment or net Network side is allocated to UE, i.e. the information type of the information field of first part's control information is known in advance in UE, then, UE can be direct Corresponding blind examination is carried out according to the information type, so that it may to parse above-mentioned reception information.

It should be noted that in the embodiment of the present invention, it includes fixed information field not limit first part's control information For the information field of fix information type, such as：It can also be other fixed forms, such as：UE makes an appointment with network side equipment The information field of other good fixed forms.

Optionally, in the embodiment of the present invention, the format of second part control information with following at least one is corresponding：

In the embodiment, above-mentioned second part control information may be implemented according to network side dispatch UE transmission mode, Type of service or terminal type are divided into different format, and the information field of the second part control information of difference format Difference meets the business demand of UE to adapt to different transmission modes, type of service or terminal type.Wherein, type of service With the correspondence and transmission mode and the correspondence and terminal type of format and the correspondence of format of format Relationship may each be network side equipment configuration or protocol definition, not elaborate to this.

Optionally, in the embodiment of the present invention, the reception information includes at least one of following：

Wherein, above-mentioned format information is used to indicate the format of second part control information, the AL information of above-mentioned PDCCH It is used to indicate the AL of above-mentioned PDCCH, i.e. UE is assured that the AL of above-mentioned PDCCH by the AL information, and then using corresponding AL parses second part and controls information.

In the embodiment, it may be implemented to receive information to include the format information of the second part control information, AL At least one of in number of resources shared by information and second part control information, it can reduce UE blind examinations time realizing in this way While number, the resource overhead of first part's control information can be saved.

If described receive the format information that information includes the second part control information, the UE receives second part It controls information and the parsing second part is attempted according to different AL according to the format information and control information.

Wherein, above-mentioned reception second part controls information and attempts parsing according to different AL according to the format information The second part control information can be that UE receives second part control letter in first part's control continuous resource of information Breath, and the parsing second part is attempted according to different AL according to the format information and controls information.Such as：First part Control the information bit cascade of information and second part control information, i.e. first part's control information and the second control message part In continuous transmitted over resources, second part control letter can be received with regard to natural to which UE receives the first branch control information Breath.Or can determine that second part controls the format of information according to the format information of second part control information, and The format that information is controlled according to second part determines that second part controls the resource location of information, such as：UE can be obtained in advance The correspondence of format and resource location is taken, that is, passes through the correspondence, so that it may be controlled with the second part of each format The resource location of information controls information to receive corresponding second part on corresponding resource location.Wherein, above-mentioned corresponding pass System can be that UE and network side equipment are negotiated either network side equipment and be pre-configured with to UE or protocol definition in advance Deng being not construed as limiting to this embodiment of the present invention.In the embodiment, only need to include the control of the second branch due to above-mentioned reception information The format of information processed, so as to save the resource overhead that first part controls information, certainly, in the embodiment of the present invention, on It states first part and controls information other than including above-mentioned reception information, can also include other information, this present invention is implemented Example is not construed as limiting.In addition, in the embodiment of the present invention, since the second part that first part's control information includes controls information Format will not increase blind examination number even if needing to introduce new DCI format in the mobile radio system following in this way, from And it can ensure the forward compatibility of down control channel.

Such as：Assuming that the Downlink Control Information carried on a down control channel includes two parts, i.e., first part is controlled Information processed and second part control information.First part controls the format information for including second part control information in information. First part's control information can also include the information bit (bit) of other immobilized substances.Assuming that the down control channel of terminal The AL of support is 1,2,4 and 8, includes 16 control channel units, in the present embodiment, referred to as CCE in search space.And it is false If the down control channel that AL is 1 has 6 candidate resources, the search for the down control channel that AL is 2 in search space There are 6 candidate resources in space, has 2 candidate resources, AL in the search space for the down control channel that AL is 4 There are 2 candidate resources in search space for 8 down control channel.Assuming that including in first part's control information Information bit is sufficiently small, can be transmitted in a CCE.Schematic diagram is as shown in figure 3, wherein the position of heavy line white background is downlink The possible position of control channel candidate resources, black shading are first part's control letter in the candidate resources of blind examination Cease the position of transmission.Certainly, Fig. 3 is only schematic diagram, does not represent actual resource impact.As seen from Figure 3, UE is in search space In need 2+2+6+6=16 candidate resource location of blind examination, i.e. two candidate resource locations of blind examination when AL is 8, 2 candidate resource locations of blind examination when AL is 4, AL are respectively necessary for 6 candidate resource locations of blind examination when being 2 and 1.Nothing The AL used by blind examination down control channel is how many, and UE can parse first part's control information first.UE parses After one control information, that is, the format of the second control information is obtained, the letter for how parsing the second control information further known Cease domain.To sum up, UE is only needed according to 16 candidate resource locations in different AL blind examinations search spaces, due to The format of the second control information is contained in first part's control information, therefore UE can be received by most 16 blind examinations All DCI received required for it.Even if needing to introduce new DCI format in the following mobile radio system, will not increase Add blind examination number.Certainly, the resource distribution of search space (search space) is only a reality in the schematic diagram of the present embodiment Example.The structure that the above method provided in an embodiment of the present invention can be applied to other search spaces, example is not precluded in the present embodiment Search space as shown in Figure 4 structure, and identical advantageous effect can be reached.

In another example：Assuming that the Downlink Control Information carried on a down control channel includes two parts, i.e. first part It controls information and second part controls information.First part controls the format letters for including second part control information in information Breath.First part's control information can also include the information bit of other immobilized substances.Assuming that first part controls information in fixation N number of CCE in transmission, N is positive integer more than or equal to 1.Assume that N is 1 in the present embodiment.Assuming that the down control channel of terminal The AL of support is 2,4 and 8, includes 16 control channel units, in the present embodiment, referred to as CCE in search space.And assume There are 6 candidate resources, the search for the down control channel that AL is 4 empty in the search space for the down control channel that AL is 2 Between in have 2 candidate resources, have 2 candidate resources in the search space for the down control channel that AL is 8.Signal Figure is as shown in figure 5, wherein the position of heavy line white background is the possible position of down control channel candidate resources, black bottom Line controls the position of information transmission for first part in the candidate resources of blind examination.Certainly, Fig. 5 is only schematic diagram, not generation The actual resource impact of table.As seen from Figure 5, UE needs 2+2+6=10 candidate resource-niche of blind examination in search space It sets, i.e. two candidate resource locations of blind examination when AL is 8,2 candidate resource locations of blind examination when AL is 4, when AL is 2 Need 6 candidate resource locations of blind examination.No matter the AL that blind examination down control channel uses is how many, and UE can be solved first First part is precipitated and controls information.After UE parses the first control information, that is, the format of the second control information is obtained, into one Step knows the information field for how parsing the second control information.In summary, UE is only needed according to different AL blind examinations search spaces In 10 candidate resource locations, contain the format of the second control information since first part controls in information, because This terminal can receive all DCI received required for it by most 10 blind examinations.Even if the following mobile radio system It is middle to need to introduce new DCI format, blind examination number will not be increased.Certainly, search space in the schematic diagram of the present embodiment Resource distribution is only an example, and the present embodiment is not precluded the above method provided in an embodiment of the present invention and can be applied to other Search space structure, such as search space structure shown in fig. 6, and identical advantageous effect can be reached.

If the information that receives includes the format information of the second part control information and the AL letters of the PDCCH Breath, the user terminal receive second part control information and according to the format information according to the AL information of the PDCCH Parse the second part control information, wherein the AL information includes AL or the AL information instruction of the PDCCH The AL of the PDCCH is the AL that the current blind examination of the user terminal controls that information is used to the first part.

Wherein, it receives the second part control information and may refer to an embodiment above, do not repeat herein.It is described AL information, which includes the AL of PDCCH, to be indicated, differed in the AL that AL and UE parsing first part the control information of PDCCH uses In the case of, then directly can by AL information indicate PDCCH AL be the current blind examination of the user terminal to described first The AL that sub-control information uses, without increasing additional information bit.

Since first part controls in information the AL information of the format and PDCCH that include second part control information, To which UE can directly control the AL of the format and PDCCH of information according to second part, parsing second part controls information, from And improve UE and obtain the efficiency of DCI, and the power consumption of UE can be saved.

Such as：Assuming that the Downlink Control Information carried on a down control channel includes two parts, i.e., first part is controlled Information processed and second part control information.First part control information in comprising second part control information format information with And the AL of down control channel.First part's control information can also include the information bit of other immobilized substances.Assuming that under UE The AL that row control channel is supported is 1,2,4 and 8, includes 16 control channel units in search space, in the present embodiment, referred to as For CCE.And assume that AL is 1 down control channel and has 6 candidate resources, the downlink that AL is 2 to control in search space There are 6 candidate resources in the search space of channel, there are 2 in the search space for the down control channel that AL is 4 Candidate resources, AL have 2 candidate resources in the search space for 8 down control channel.Assuming that first part The information bit for including in control information is sufficiently small, can be transmitted in a CCE.Schematic diagram is as shown in fig. 7, wherein heavy line The position of white background is the possible position of down control channel candidate resources, user terminal dedicated control channel candidate Resource, it is the candidate resource locations that terminal needs blind examination to add shading, and black shading is the candidate resources of blind examination The position of middle first part's control information transmission.Certainly, Fig. 7 is only schematic diagram, does not represent actual resource impact.By Fig. 7 As it can be seen that UE needs 9 candidate resource locations of blind examination in search space, i.e. two candidate moneys of blind examination when AL is 8 Source position, 1 candidate resource location of blind examination when AL is 4, AL are respectively necessary for 3 candidate resources of blind examination when being 2 and 1 Position.No matter the AL that blind examination down control channel uses is how many, and UE can parse first part's control information first.At this In embodiment, it is assumed that first part controls the format's and down control channel for containing the second control information in information AL.After UE parses the first control information, that is, the format of the second control information is obtained, further knows how to receive second Control the information field of information；And the AL of down control channel actual use is obtained simultaneously.Such as UE is according to AL=8 blind examination downlinks Control channel, and first part's Downlink Control Information has successfully been obtained first blind examination position.According to first part's downlink control Information processed, UE clearly know the format of second part Downlink Control Information, into without according to different format progress Blind examination.Meanwhile UE obtains the AL of down control channel.If the AL of first part's Downlink Control Information instruction is that 8, UE is pressed Second part Downlink Control Information is parsed according to AL=8.If the AL of first part's Downlink Control Information instruction is that 4, UE is known The resource that PDCCH transmission actually occupies is the candidate resources that number is 0 in AL=4；If first part's downlink control letter The AL of breath instruction is 2, then terminal knows that the resource that PDCCH transmission actually occupies is the candidate moneys that number is 0 in AL=2 Source；If the AL of first part's Downlink Control Information instruction is 1, terminal knows that the resource that PDCCH transmission actually occupies is AL The candidate resources that number is 0 in=1.I.e. terminal does not need other AL of blind examination since identical CCE indexes (index). And so on, the processing method of other blind examination positions is similar.

In another example：Assuming that the Downlink Control Information carried on a down control channel includes two parts, i.e. first part It controls information and second part controls information.First part controls the format information for including second part control information in information And the AL of down control channel.First part's control information can also include the information bit of other immobilized substances.Assuming that first Part control information is transmitted in fixed N number of CCE, and N is the positive integer more than or equal to 1.N=1 is assumed in the present embodiment.It is false Include 16 control channel units in search space, in the present embodiment if the AL that the down control channel of UE is supported is 2,4 and 8 In, referred to as CCE.And assuming there are 6 candidate resources in search spaces of the AL for 2 down control channel, AL is 4 There are 2 candidate resources in the search space of down control channel, has 2 in the search space for the down control channel that AL is 8 A candidate resources.Schematic diagram is as shown in figure 8, wherein the position of heavy line white background is down control channel candidate moneys The possible position in source, it is the candidate resource locations that terminal needs blind examination to add shading, and black shading is blind examination The position of first part's control information transmission in candidate resources.Certainly, which is only schematic diagram, is not represented actual Resource impact.As seen from Figure 8, UE needs 6 candidate resource locations of blind examination, i.e. blind examination two when AL is 8 in search space A candidate resource locations, 1 candidate resource location of blind examination when AL is 4, AL need blind examination 3 when being 2 Candidate resource locations.No matter the AL that blind examination down control channel uses is how many, and UE can parse first part first Control information.In this example, it is assumed that first part control information in contain the second control information format and under The AL of row control channel.After UE parses the first control information, that is, the format of the second control information is obtained, is further known How the information field of second control information is received；And the AL of down control channel actual use is obtained simultaneously.Such as UE according to AL=8 blind examination down control channels, and first part's Downlink Control Information has successfully been obtained first blind examination position.According to A part of Downlink Control Information, UE clearly know the format of second part Downlink Control Information, into without according to difference Format carry out blind examination.Meanwhile UE obtains the AL of down control channel.If first part's Downlink Control Information instruction AL is 8, then UE decodes second part Downlink Control Information according to AL=8.If the AL of first part's Downlink Control Information instruction It is 4, then UE knows that the resource that PDCCH transmission actually occupies is the candidate resources that number is 0 in AL=4；If first It is 2 to divide the AL of Downlink Control Information instruction, then UE knows that the resource that PDCCH transmission actually occupies is that number is 0 in AL=2 Candidate resources.That is UE does not need other AL of blind examination since identical CCE index.And so on, other blind examination positions Processing method it is similar.

Optionally, the UE receives and parses through the second part according to the reception information and controls information, including：If institute It states and receives number of resources shared by the format and second part control information that information includes the second part control information, The UE controls information and according to the format information according to second part control information institute according to second part is received It accounts for number of resources and parses the second part control information.

Wherein, it receives the second part control information and may refer to an embodiment above, do not repeat herein.It is above-mentioned It can be that UE is according to described to parse the second part control information according to number of resources shared by second part control information Number of resources is parsed shared by second part control information, and information is controlled to obtain the second part.

Due to including the format and second part control letter of second part control information in first part's control information The shared number of resources of breath, to which UE can directly control format and the second part control information institute of information according to second part Number of resources is accounted for, parsing second part controls information, obtains the efficiency of DCI to improve UE, and can save the power consumption of UE.

Such as：Assuming that first part's control information can be transmitted or in 2 control channels in 1 control channel unit It is transmitted in unit, to meet different coverage requirements.Certainly, in the embodiment of the present invention, it is not excluded that first part controls Information is transmitted with other resource granularities.UE needs the blind examination first part Downlink Control Information in the search space of oneself.UE is pressed According to different AL blind examinations first part Downlink Control Information.As shown in figure 9, UE is successfully received first part's Downlink Control Information Afterwards, the resource occupied according to the format of the second part Downlink Control Information wherein indicated, second part Downlink Control Information The information such as number determine how reception decoding second part Downlink Control Information.The money that second part Downlink Control Information occupies Source number is the positive integer more than or equal to 1, and network side equipment can be indicated according to channel condition.In addition, under first part The resource that the resource that row control channel occupies is occupied with second part down control channel can be continuous control channel unit, Can also be discontinuous.

Wherein, in the embodiment, UE receives and parses through the second part control information according to the reception information can To include format information, the AL information of the second part control information referring to the reception information provided in embodiment above Embodiment party is parsed with the reception introduced in the embodiment of at least one of number of resources shared by second part control information Formula does not repeat herein, and can reach identical advantageous effect.

Since in the embodiment, first part controls information and second part control information MAP is continuous at same group The continuity that can ensure first part's control information and the second control control information on CCE in this way, to facilitate UE to receive.

Wherein, in the embodiment, UE may refer to embodiment above according to the second part control information is parsed The reception information of middle offer includes format information and the second part control information institute of the second part control information The reception parsing embodiment introduced in the embodiment of at least one of number of resources is accounted for, is not repeated herein, and can reach To identical advantageous effect.

Since the reception information that in the embodiment, first part's control information includes further includes the second part control The mapping resource location information of information, may be implemented in this way second part control information specifically map resource location can be by the Part control information instruction, to improve the flexibility that second part controls information, to adapt to the business of future communication systems Diversification improves the performance of system.

It should be noted that the embodiment of the plurality of optional of above-mentioned introduction, can be combined with each other realization, can also be independent It realizes, this embodiment of the present invention is not construed as limiting.

Referring to Figure 10, the embodiment of the present invention provides another downlink control information transmission method, as shown in Figure 10, including with Lower step：

1001, the first part of DCI is controlled information by network side equipment and second part controls information MAP to same It is transmitted on PDCCH, wherein first part's control information includes fixed information field, and described information domain includes the DCI packets The reception information of the second part control information included.

Wherein, above-mentioned DCI includes first part's control information and second part control information can be dispatch UE one Complete DCI includes two independent transmission blocks, i.e., first part's control information and second part control information.First part is controlled Information processed and second part control information are transmitted in the same control channel, both as two mutually independent transmission blocks point Other places are managed, such as addition cyclic redundancy check (Cyclic Redundancy Check, CRC), channel coding and rate respectively With etc..

Can be type of service, transmission mode or terminal type of the network side equipment according to scheduling in the embodiment, Different control information is carried in second part controls information, that is, carries different format controls information.

Optionally, the reception information includes at least one of following：

It should be noted that embodiment party of the present embodiment as network side equipment corresponding with embodiment shown in Fig. 2 Formula, specific embodiment may refer to the related description of embodiment shown in Fig. 2, in order to avoid repeated explanation, this implementation Example repeats no more.In the present embodiment, since first part's control information includes fixed information field, to which UE need not be according to more A DCI format carry out blind examination, and the reception information that first part's control information can be used to include parses second part control Information processed to reach the blind examination complexity for reducing UE and receiving DCI, and reduces UE consumptions so as to reduce the number of UE blind examinations The purpose of electricity.

Referring to Figure 11, the embodiment of the present invention provides a kind of UE, and as shown in figure 11, UE1100 is comprised the following modules：

Blind examination module 1101, for by blind examination PDCCH, receiving and parsing through first part's control information that DCI includes, In, first part's control information includes fixed information field, and described information domain includes the second part control that the DCI includes The reception information of information processed；

Parsing module 1102 is received, information is controlled for receiving and parsing through the second part according to the reception information.

Optionally, the blind examination module 1101 is for passing through the PDCCH candidate resources in its search space Blind examination PDCCH receives and parses through first part's control information that DCI includes.

Optionally, the UE parses AL of the first part's control information independently of the PDCCH.

Optionally, the reception information includes at least one of following：

Optionally, if it includes that the second part controls information to receive parsing module 1102 for the reception information Format receives second part control information and attempts described second of parsing according to different AL according to the format information Sub-control information；Or

If the reception parsing module 1102 includes that the second part controls information for the reception information The AL information of format information and the PDCCH receives second part control information and according to the format information according to institute The AL information for stating PDCCH parses the second part control information, wherein and the AL information includes the AL of the PDCCH, or The AL information indicates that the current blind examination of the AL of the PDCCH user terminals is used to first part control information AL；Or

If the reception parsing module 1102 includes that the second part controls information for the reception information Format and the second part control number of resources shared by information, receive second part control information and according to the format Information parses the second part according to number of resources shared by second part control information and controls information.

The parsing module 1102 that receives is used in the continuous CCE for receiving first part's control information, root The second part, which is received and parsed through, according to the reception information controls information.

If the parsing module 1102 that receives receives the mapping that information includes the second part control information for described The format information of resource location information and second part control information, in the money that the mapping resource location information indicates On source position, receives second part control information and parsing described second is attempted according to different AL according to the format information Part control information；Or

If the parsing module 1102 that receives receives the mapping that information includes the second part control information for described Number of resources shared by resource location information, the format of second part control information and second part control information, On the resource location that the mapping resource location information indicates, receives second part control information and believed according to the format Breath parses the second part according to number of resources shared by second part control information and controls information.

It should be noted that above-mentioned UE1100 can be arbitrary in embodiment of the method in the embodiment of the present invention in the present embodiment The UE of embodiment, the arbitrary embodiment of UE can be by upper in the present embodiment in embodiment of the method in the embodiment of the present invention It states UE1100 to be realized, and reaches identical advantageous effect, details are not described herein again.

Referring to Figure 12, the embodiment of the present invention provides a kind of network side equipment, and as shown in figure 12, network side equipment 1200 includes With lower module：

Transmission module 1201, for the first part of DCI being controlled information and second part controls information MAP to same It is transmitted on PDCCH, wherein first part's control information includes fixed information field, and described information domain includes the DCI packets The reception information of the second part control information included.

Optionally, the reception information includes at least one of following：

It should be noted that above-mentioned network side equipment 1200 can be that method is implemented in the embodiment of the present invention in the present embodiment The network side equipment of arbitrary embodiment in example, the arbitrary embodiment of receiving terminal is all in embodiment of the method in the embodiment of the present invention It can be realized by the network side equipment 1200 in the present embodiment, and reach identical advantageous effect, details are not described herein again.

Referring to Figure 13, the embodiment of the present invention provides the structure of another kind UE, which includes：Processor 1300, transceiver 1310, memory 1313, user interface 1330 and bus interface, wherein：

Processor 1300 executes following process for reading the program in memory 1313：

Using transceiver 1310 by blind examination PDCCH, first part's control information that DCI includes is received and parsed through, wherein First part's control information includes fixed information field, and described information domain includes the second part control that the DCI includes The reception information of information；

The UE receives and parses through the second part using transceiver 1310 according to the reception information and controls information.

Wherein, transceiver 1310, for sending and receiving data under the control of processor 1300.

In fig. 13, bus architecture may include the bus and bridge of any number of interconnection, specifically by 1300 generation of processor The various circuits for the memory that the one or more processors and memory 1313 of table represent link together.Bus architecture may be used also To link together various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like, these are all It is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 1310 can To be multiple element, that is, includes transmitter and receiver, the list for being communicated over a transmission medium with various other devices is provided Member.For different user equipmenies, user interface 1330, which can also be, external the interface for needing equipment is inscribed, and connection is set Standby including but not limited to keypad, display, loud speaker, microphone, control stick etc..

Processor 1300 is responsible for bus architecture and common processing, and memory 1313 can store processor 1300 and exist Execute used data when operation.

Optionally, described that first part's control information that DCI includes is received and parsed through by blind examination PDCCH, including：

By blind examination PDCCH in the PDCCH candidate resources in its search space, receiving and parsing through DCI includes First part control information.

Optionally, the UE parses AL of the first part's control information independently of the down control channel.

Optionally, the reception information includes at least one of following：

Optionally, described that the second part control information is received and parsed through according to the reception information, including：

If described receive the format information that information includes the second part control information, second part control letter is received It ceases and is attempted to parse the second part control information according to different AL according to the format information；Or

If the information that receives includes the format information of the second part control information and the AL letters of the PDCCH Breath receives second part control information and parses described second according to the AL information of the PDCCH according to the format information Part control information, wherein the AL information includes the AL of the PDCCH or the AL information indicates the AL of the PDCCH The AL that information uses is controlled for the current blind examination of the user terminal to the first part；Or

If described receive the format and second part control information that information includes the second part control information Shared number of resources receives second part control information and controls information according to the second part according to the format information Shared number of resources parses the second part and controls information.

It is described that the second part control information is received and parsed through according to the reception information, including：

On the continuous CCE for receiving first part's control information, received and parsed through according to the reception information The second part controls information.

If the mapping resource location information that information includes second part control information and second described of receiving The format information of sub-control information receives second part control on the resource location that the mapping resource location information indicates Information processed simultaneously attempts the parsing second part control information according to the format information according to different AL；Or

If described receive mapping resource location information, the second part that information includes the second part control information The format and the second part for controlling information control number of resources shared by information, are indicated in the mapping resource location information Resource location on, receive second part control information simultaneously according to the format information according to the second part control information Shared number of resources parses the second part and controls information.

It should be noted that above-mentioned UE can arbitrarily be implemented in embodiment of the method in the embodiment of the present invention in the present embodiment The UE of mode, the arbitrary embodiment of transmitting terminal can be by upper in the present embodiment in embodiment of the method in the embodiment of the present invention It states UE to be realized, and reaches identical advantageous effect, details are not described herein again.

Referring to Figure 14, show that a kind of structure of transmission node, the transmission node include in figure：Processor 1400, transceiver 1410, memory 1420, user interface 2140 and bus interface, wherein：

Processor 1400 executes following process for reading the program in memory 1420：

The first part of DCI is controlled into information by transceiver 1410 and second part controls information MAP to same It is transmitted on PDCCH, wherein first part's control information includes fixed information field, and described information domain includes the DCI packets The reception information of the second part control information included.

In fig. 14, bus architecture may include the bus and bridge of any number of interconnection, specifically by 1400 generation of processor The various circuits for the memory that the one or more processors and memory 1420 of table represent link together.Bus architecture may be used also To link together various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like, these are all It is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 1410 can To be multiple element, that is, includes transmitter and receiver, the list for being communicated over a transmission medium with various other devices is provided Member.For different user equipmenies, user interface 2140, which can also be, external the interface for needing equipment is inscribed, and connection is set Standby including but not limited to keypad, display, loud speaker, microphone, control stick etc..

Processor 1400 is responsible for bus architecture and common processing, and memory 1420 can store processor 1400 and exist Execute used data when operation.

Optionally, the reception information includes at least one of following：

It should be noted that above-mentioned network side equipment can be in the embodiment of the present invention in embodiment of the method in the present embodiment The network side equipment of arbitrary embodiment, the arbitrary embodiment of network side equipment is all in embodiment of the method in the embodiment of the present invention It can be realized by the above-mentioned transmission node in the present embodiment, and reach identical advantageous effect, details are not described herein again.

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

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

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

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

Claims

1. a kind of downlink control information transmission method, which is characterized in that including：

User terminal receives and parses through the first part that Downlink Control Information DCI includes by blind examination down control channel PDCCH Control information, wherein first part's control information includes fixed information field, and described information domain includes that the DCI includes Second part control information reception information；

The user terminal receives and parses through the second part according to the reception information and controls information.

2. the method as described in claim 1, which is characterized in that the user terminal is received and parsed through by blind examination PDCCH The first part that DCI includes controls information, including：

The user terminal is received simultaneously by blind examination PDCCH in PDCCH candidate's candidate resources in its search space First part's control information that parsing DCI includes.

3. the method as described in claim 1, which is characterized in that it is only that the user terminal parses first part's control information Stand on the AL of the PDCCH.

4. the method as described in claim 1, which is characterized in that first part's control information includes that fixed information field is The information field of fix information type.

5. the method as described in claim 1, which is characterized in that the format of second part control information with it is following at least One correspondence：

The terminal of the type of service of network side equipment scheduling, the transmission mode of network side equipment scheduling or network side equipment scheduling Type.

6. the method as described in any one of claim 1-5, which is characterized in that the reception information includes following at least one ：

Format information, the AL information of the PDCCH and the second part of the second part control information control information Shared number of resources.

7. method as claimed in claim 6, which is characterized in that the user terminal is received and parsed through according to the reception information The second part controls information, including：

If described receive the format information that information includes the second part control information, the user terminal receives second Sub-control information simultaneously attempts the parsing second part control information according to the format information according to different AL；Or

If described receive the AL information that information includes the format information and the PDCCH of the second part control information, institute User terminal is stated to receive second part control information and parse institute according to the AL information of the PDCCH according to the format information State second part control information, wherein the AL information include the PDCCH AL or the AL information instruction described in The AL of PDCCH is the AL that the current blind examination of the user terminal controls that information is used to the first part；Or

If described receive shared by the format and second part control information that information includes the second part control information Number of resources, the user terminal receive second part control information and according to the format information according to the second part It controls number of resources shared by information and parses the second part control information.

8. the method as described in any one of claim 1-5, which is characterized in that first part's control information and second Sub-control information MAP is on same group of continuous control channel unit CCE；

The user terminal connects on the continuous CCE for receiving first part's control information according to the reception information It receives and parses the second part control information.

9. the method as described in any one of claim 1-5, which is characterized in that the reception information includes the second part The format information of information is controlled, and further includes at least one of following：

Number of resources shared by the mapping resource location information and second part control information of the second part control information；

If described receive the mapping resource location information and the second part control that information includes the second part control information The format information of information processed, the user terminal receive the on the resource location that the mapping resource location information indicates Two parts, which control information and attempt the parsing second part according to different AL according to the format information, controls information；Or Person

If the information that receives includes the mapping resource location information of the second part control information, second part control The format of information and the second part control number of resources shared by information, and the user terminal is in the mapping resource location On the resource location that information indicates, second part control information is received and according to the format information according to the second part It controls number of resources shared by information and parses the second part control information.

10. a kind of downlink control information transmission method, which is characterized in that including：

The first part of DCI is controlled and is transmitted in information and second part control information MAP to same PDCCH by network side equipment, Wherein, first part's control information includes fixed information field, and described information domain includes the second part that the DCI includes Control the reception information of information.

11. method as claimed in claim 10, which is characterized in that first part's control information includes fixed information field For the information field of fix information type.

12. method as claimed in claim 10, which is characterized in that the format of second part control information with such as down toward One item missing corresponds to：

The type of service of the network side equipment scheduling, the transmission mode of network side equipment scheduling or the network side are set The terminal type of standby scheduling.

13. the method as described in any one of claim 10-12, which is characterized in that the reception information include it is following at least One：

14. the method as described in any one of claim 10-12, which is characterized in that first part control information and the Two parts control information is transmitted using different transmission blocks, and first part control information and the second part control Information processed cascades information bit after channel coding.

15. method as claimed in claim 14, which is characterized in that first part's control information and second part control letter Breath is mapped on same group of continuous CCE.

16. method as claimed in claim 14, which is characterized in that the mapping resource location of second part control information by First part's control information notice, and the information that receives includes the format information that the second part controls information, And further include at least one of following：

Number of resources shared by the mapping resource location information and second part control information of the second part control information.

17. a kind of user terminal, which is characterized in that including：

Blind examination module, for by blind examination PDCCH, receiving and parsing through first part's control information that DCI includes, wherein described First part's control information includes fixed information field, and described information domain includes the second part control information that the DCI includes Reception information；

18. user terminal as claimed in claim 17, which is characterized in that the blind examination module is used for by its search space Blind examination PDCCH in interior PDCCH candidate resources receives and parses through first part's control information that DCI includes.

19. user terminal as claimed in claim 17, which is characterized in that the user terminal parses first part's control AL of the information independently of the PDCCH.

20. user terminal as claimed in claim 17, which is characterized in that first part's control information includes fixed letter Cease the information field that domain is fix information type.

21. user terminal as claimed in claim 17, which is characterized in that the format of second part control information with such as It is at least one of lower corresponding：

22. the user terminal as described in any one of claim 17-21, which is characterized in that the reception information includes as follows At least one of：

23. user terminal as claimed in claim 22, which is characterized in that if the reception parsing module is believed for the reception Breath includes the format of the second part control information, receives second part control information and is pressed according to the format information It attempts to parse the second part control information according to different AL；Or

If it is described receive parsing module for the reception information include second part control information format information and The AL information of the PDCCH receives second part control information and is believed according to the AL of the PDCCH according to the format information Breath parses the second part and controls information, wherein the AL information includes that the AL of the PDCCH or the AL information refer to Show that the AL of the PDCCH is the AL that the current blind examination of the user terminal controls that information is used to the first part；Or

If the parsing module that receives for the reception information includes the format of second part control information and described Second part controls number of resources shared by information, receives second part control information and according to the format information according to described Second part controls number of resources shared by information and parses the second part control information.

24. the user terminal as described in any one of claim 17-21, which is characterized in that the first part controls information Information MAP is controlled on same group of continuous CCE with second part；

The parsing module that receives is used to, in the continuous CCE for receiving first part's control information, be connect according to described Breath of collecting mail receives and parses through the second part control information.

25. the user terminal as described in any one of claim 17-21, which is characterized in that the reception information includes described Second part controls the format information of information, and further includes at least one of following：

If the parsing module that receives receives the mapping resource location that information includes the second part control information for described The format information of information and second part control information, in the resource location that the mapping resource location information indicates On, it receives second part control information and the parsing second part control is attempted according to different AL according to the format information Information processed；Or

If the parsing module that receives receives the mapping resource location that information includes the second part control information for described Number of resources shared by information, the format of second part control information and second part control information, reflects described It penetrates on the resource location of resource location information expression, receives second part control information and according to the format information according to institute It states number of resources shared by second part control information and parses the second part control information.

26. a kind of network side equipment, which is characterized in that including：

Transmission module, for the first part of DCI being controlled information and second part controls information MAP and uploads to same PDCCH It is defeated, wherein first part's control information includes fixed information field, and described information domain includes second that the DCI includes Part controls the reception information of information.

27. network side equipment as claimed in claim 26, which is characterized in that first part's control information includes fixed Information field is the information field of fix information type.

28. network side equipment as claimed in claim 26, which is characterized in that the format of second part control information with It is at least one of following corresponding：

29. the network side equipment as described in any one of claim 26-28, which is characterized in that the reception information includes such as It is at least one of lower：

30. the network side equipment as described in any one of claim 26-28, which is characterized in that first part's control letter Breath and second part control information are transmitted using different transmission blocks, and the first part controls information and described second Part control information cascades information bit after channel coding.

31. network side equipment as claimed in claim 30, which is characterized in that first part's control information and second part Information MAP is controlled on same group of continuous CCE.

32. network side equipment as claimed in claim 30, which is characterized in that the mapping resource of the second part control information Position is by first part control information notice, and the information that receives includes the format that the second part controls information Information, and further include at least one of following：