CN104247558B

CN104247558B - Acquisition methods, user equipment and the base station of system message

Info

Publication number: CN104247558B
Application number: CN201380019417.6A
Authority: CN
Inventors: 成艳; 薛丽霞
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-01-25
Filing date: 2013-01-25
Publication date: 2018-07-03
Anticipated expiration: 2033-01-25
Also published as: CN104247558A; CN109121181B; CN109121181A; WO2014113972A1

Abstract

The present invention provides a kind of acquisition methods of system message, user equipment and base station.This method includes user equipment and detects down control channel, bearing downlink control information DCI on the down control channel, and comprising first information domain in the corresponding DCI format of the down control channel, the first information domain is used to indicate system message；The user equipment obtains system message according to the DCI carried on the down control channel detected.The embodiment of the present invention can improve the acquisition performance of system message.

Description

Acquisition methods, user equipment and the base station of system message

Technical field

The present invention relates to a kind of communication technology more particularly to acquisition methods of system message, user equipment and base stations.

Background technology

In long term evolution (Long Term Evolution, LTE) system, a radio frames include 10 subframes, per height Frame includes two time slots, and in normal cyclic prefix, one time slot includes 7 Orthogonal Frequency Division Multiplexing (Orthogonal Frequency Division Multiple, OFDM) symbol, in extended cyclic prefix, one time slot includes 6 OFDM symbols Number.Base station (evolved NodeB, eNB) is to (Physical Resource Block pair, PRB with Physical Resource Block Pair it) is scheduled for unit, a PRB pair accounts for a subframe in time, and 12 OFDM subcarriers are accounted in frequency.

In LTE versions 8~11, system message is from Physical Broadcast Channel (Physical Broadcasting Channel, PBCH) on obtain, PBCH can rely on public reference signal (Common Reference Signal, CRS) and do Transmitting diversity.But in LTE versions 12 and later version, new wave-carring type (New Carrier Type, NCT) can be introduced, The NCT can be non-backward compatible carrier waves, can carrying single antenna mouth CRS, and single antenna mouth CRS can be only carried on On fractional bandwidth, relative to the CRS on backward compatibility carrier wave, the transmission performance of PBCH can be influenced.It thus needs to solve on NCT How system message is obtained.

Invention content

In view of this, an embodiment of the present invention provides a kind of acquisition methods of system message, user equipment and base station, to Realize the acquisition of system message on NCT.

In a first aspect, a kind of acquisition methods of system message are provided, including：

User equipment detects down control channel, and bearing downlink controls information DCI on the down control channel, under described Comprising first information domain in the corresponding DCI format of row control channel, the first information domain is used to indicate system message；

The user equipment obtains system message according to the DCI carried on the down control channel detected.

With reference to first aspect, in the first possible realization method of first aspect, the down control channel is increases Strong Physical Downlink Control Channel EPDCCH.

With reference to first aspect or the first possible realization method of first aspect, second in first aspect are possible In realization method, the detection down control channel, including：

Down control channel is detected on first resource, the first resource is the first Physical Resource Block in the first subframe Set；

First subframe is carrying synchronizing signal and/or finds next subframe of the subframe of signal, first physics The frequency domain initial position of resource set of blocks and the frequency domain of carrying synchronizing signal and/or the physical resource set of blocks for finding signal originate Position is identical.

With reference to first aspect or the first possible realization method of first aspect, the third in first aspect are possible In realization method, the detection down control channel, including：

First subframe is carrying synchronizing signal and/or finds next subframe of the subframe of signal, first physics The frequency domain initial position of resource set of blocks and the frequency domain of carrying synchronizing signal and/or the physical resource set of blocks for finding signal originate There are scheduled offsets for position.

Second with reference to first aspect or the third possible realization method, in the 4th kind of possible reality of first aspect In existing mode, the frequency domain initial position of the first physical resource set of blocks refers to physical resource in the first physical resource set of blocks The physical resource block number of the Physical Resource Block of block number minimum, the carrying synchronizing signal and/or the physics money for finding signal The frequency domain initial position of source block set refers to physical resource in carrying synchronizing signal and/or the physical resource set of blocks for finding signal The physical resource block number of the Physical Resource Block of block number minimum.

With reference to first aspect or the first possible realization method of first aspect, the 5th kind in first aspect are possible In realization method, the detection down control channel, including：

First subframe be carry synchronizing signal and/or find signal subframe, the first physical resource set of blocks Frequency domain position and carrying synchronizing signal and/or find signal physical resource set of blocks frequency domain position it is not be overlapped.

The 5th kind of possible realization method with reference to first aspect, in the 6th kind of possible realization method of first aspect In, the first physical resource set of blocks includes the first muon physics resource set of blocks and the second muon physics resource set of blocks, described First muon physics resource set of blocks and the second muon physics resource set of blocks are located at carrying synchronizing signal and/or find signal The both sides of physical resource set of blocks.

The 6th kind of possible realization method with reference to first aspect, in the 7th kind of possible realization method of first aspect In, Physical Resource Block number and the second muon physics resource set of blocks that the first muon physics resource set of blocks includes include Physical Resource Block number it is identical；Alternatively,

The corresponding down control channel blind Detecting number of first muon physics resource set of blocks and second muon physics The corresponding down control channel blind Detecting number of resource set of blocks is identical.

To the 7th kind of any possible realization method, the 8th kind in first aspect can for second with reference to first aspect It is described that down control channel is detected on first resource in the realization method of energy, including：

User equipment determines the position of the search space of down control channel according to cell ID, according to described search space Position the down control channel is detected on first resource；Alternatively,

The first resource includes multiple child resources, and user equipment determines what down control channel occupied according to cell ID Child resource detects the down control channel on the child resource of down control channel occupancy；Alternatively,

The first resource includes multiple child resources, and the down control channel occupies one in the multiple child resource A, the user equipment detects the down control channel by blind Detecting on the multiple child resource.

With reference to first aspect or first aspect the first to the 8th kind of any possible realization method, in first aspect The 9th kind of possible realization method in, the DCI that is carried on the down control channel that the basis detects is obtained System message, including：

System message is obtained according to the value in the first information domain；Alternatively,

The first system message is also obtained according to the value in the first information domain comprising the second information field in the DCI format, Physical Downlink Shared Channel PDSCH is received according to the value of second information field, and obtains second system from the PDSCH and disappears Breath, second information field are used to indicate the transmission of PDSCH, the second system message are carried in the PDSCH.

With reference to first aspect or first aspect the first to the 9th kind of any possible realization method, in first aspect The tenth kind of possible realization method in, the first information domain include following item in it is one or more：

The domain of indicating downlink system bandwidth, the domain for indicating System Frame Number, the domain of the corresponding carrier type of indication carrier wave, instruction The domain of the public search space position of enhancing.

Second aspect provides a kind of acquisition methods of system message, including：

Base station determines the Downlink Control Information DCI of down control channel carrying, the corresponding DCI lattice of the down control channel Comprising first information domain in formula, the first information domain is used to indicate system message；

The base station sends the down control channel to user equipment so that the user equipment is according to the downlink control The DCI carried on channel processed obtains system message.

With reference to second aspect, in the first possible realization method of second aspect, the down control channel is increases Strong Physical Downlink Control Channel EPDCCH.

With reference to the possible realization method of the first of second aspect or second aspect, second in second aspect is possible It is described to send the down control channel in realization method, including：

The down control channel is sent on first resource, the first resource is the first physics money in the first subframe Source block set；

With reference to the possible realization method of the first of second aspect or second aspect, the third in second aspect is possible It is described to send the down control channel in realization method, including：

With reference to second of second aspect or the third possible realization method, in the 4th kind of possible reality of second aspect In existing mode, the frequency domain initial position of the first physical resource set of blocks refers to physical resource in the first physical resource set of blocks The physical resource block number of the Physical Resource Block of block number minimum, the carrying synchronizing signal and/or the physics money for finding signal The frequency domain initial position of source block set refers to physical resource in carrying synchronizing signal and/or the physical resource set of blocks for finding signal The physical resource block number of the Physical Resource Block of block number minimum.

With reference to the possible realization method of the first of second aspect or second aspect, the 5th kind in second aspect is possible It is described to send the down control channel in realization method, including：

With reference to the 5th kind of possible realization method of second aspect, in the 6th kind of possible realization method of second aspect In, the first physical resource set of blocks includes the first muon physics resource set of blocks and the second muon physics resource set of blocks, described First muon physics resource set of blocks and the second muon physics resource set of blocks are located at carrying synchronizing signal and/or find signal The both sides of physical resource set of blocks.

With reference to the 6th kind of possible realization method of second aspect, in the 7th kind of possible realization method of second aspect In, Physical Resource Block number and the second muon physics resource set of blocks that the first muon physics resource set of blocks includes include Physical Resource Block number it is identical；Alternatively,

With reference to second to the 7th kind any possible realization method of second aspect, the 8th kind in second aspect can It is described that the down control channel is sent on first resource in the realization method of energy, including：

The position of the search space of the down control channel is determined according to cell ID, according to the position in described search space It puts and sends the down control channel；Alternatively,

The child resource that the down control channel occupies on first resource is determined according to cell ID, in the occupancy The down control channel is sent on child resource；Alternatively,

The down control channel is sent on any one child resource in the first resource.

With reference to the first of second aspect or second aspect to the 8th kind of any possible realization method, in second aspect The 9th kind of possible realization method in, the base station determine down control channel carrying Downlink Control Information DCI, including：

The value in the first information domain is determined according to system message；Alternatively,

The value in the first information domain is determined according to the first system message, according to the tune of Physical Downlink Shared Channel PDSCH Degree information determines the value of second information field, so that the user equipment is according to receiving the value of second information field PDSCH, and second system message is obtained from the PDSCH.

With reference to the first of second aspect or second aspect to the 9th kind of any possible realization method, in second aspect The tenth kind of possible realization method in, the first information domain include following item in it is one or more：

The third aspect provides a kind of user equipment, including：

Detection module, for detecting down control channel, bearing downlink control information DCI on the down control channel, Comprising first information domain in the corresponding DCI format of the down control channel, the first information domain is used to indicate system message；

Acquisition module, for the DCI carried on the down control channel that is detected according to the detection module Obtain system message.

With reference to the third aspect, in the first possible realization method of the third aspect, the detection module detects to obtain The down control channel be enhancing Physical Downlink Control Channel EPDCCH.

With reference to the possible realization method of the first of the third aspect or the third aspect, second in the third aspect is possible In realization method, the detection module is specifically used for：

With reference to the possible realization method of the first of the third aspect or the third aspect, the third in the third aspect is possible In realization method, the detection module is specifically used for：

With reference to second of the third aspect or the third possible realization method, in the 4th kind of possible reality of the third aspect In existing mode, the frequency domain initial position of the first physical resource set of blocks of the first resource of the detection module detection Refer to the physical resource block number of the Physical Resource Block of physical resource block number minimum in the first physical resource set of blocks, it is described to hold It carries synchronizing signal and/or finds that the frequency domain initial position of the physical resource set of blocks of signal refers to carry synchronizing signal and/or hair The physical resource block number of the Physical Resource Block of physical resource block number minimum in the physical resource set of blocks of existing signal.

With reference to the possible realization method of the first of the third aspect or the third aspect, the 5th kind in the third aspect is possible In realization method, the detection module is specifically used for：

With reference to the 5th kind of possible realization method of the third aspect, in the 6th kind of possible realization method of the third aspect In, the first physical resource set of blocks of the first resource of the detection module detection includes the first muon physics resource block Set and the second muon physics resource set of blocks, the first muon physics resource set of blocks and the second muon physics resource set of blocks Positioned at carrying synchronizing signal and/or the both sides for the physical resource set of blocks for finding signal.

With reference to the 6th kind of possible realization method of the third aspect, in the 7th kind of possible realization method of the third aspect In, first muon physics that the first physical resource set of blocks of the first resource of detection module detection includes The Physical Resource Block number that the Physical Resource Block number that resource set of blocks includes is included with the second muon physics resource set of blocks It is identical；Alternatively, the corresponding down control channel blind Detecting number of the first muon physics resource set of blocks and the described second sub- object It is identical to manage the corresponding down control channel blind Detecting number of resource set of blocks.

With reference to second to the 7th kind any possible realization method of the third aspect, the 8th kind in the third aspect can In the realization method of energy, the detection module is specifically used for：

The position of the search space of down control channel is determined according to cell ID, is existed according to the position in described search space The down control channel is detected on first resource；Alternatively,

The child resource of down control channel occupancy is determined according to cell ID, in the son money that the down control channel occupies The down control channel is detected on source, wherein, the first resource includes multiple child resources；Alternatively,

The down control channel is detected on the multiple child resource by blind Detecting, wherein, the first resource packet Multiple child resources are included, the down control channel occupies one in the multiple child resource.

With reference to the first of the third aspect or the third aspect to the 8th kind of any possible realization method, in the third aspect The 9th kind of possible realization method in, the acquisition module is specifically used for：

The first system message is obtained according to the value in the first information domain, physical down is received according to the value of the second information field Shared channel PDSCH, and second system message is obtained from the PDSCH, wherein, also comprising the second letter in the DCI format Domain is ceased, second information field is used to indicate the transmission of PDSCH, the second system message is carried in the PDSCH.

With reference to the first of the third aspect or the third aspect to the 9th kind of any possible realization method, in the third aspect The tenth kind of possible realization method in, the acquisition module according to the first information domain include following item in one Item is multinomial：

Fourth aspect provides a kind of base station, including：

Determining module, for determining the Downlink Control Information DCI of down control channel carrying, the down control channel pair Comprising first information domain in the DCI format answered, the first information domain is used to indicate system message；

Sending module, for sending the down control channel to user equipment so that the user equipment is according to The DCI carried on the down control channel that determining module determines obtains system message.

With reference to fourth aspect, in the first possible realization method of fourth aspect, the institute of the sending module transmission State the Physical Downlink Control Channel EPDCCH that down control channel is enhancing.

With reference to the possible realization method of the first of fourth aspect or fourth aspect, second in fourth aspect is possible In realization method, the sending module is specifically used for：

With reference to the possible realization method of the first of fourth aspect or fourth aspect, the third in fourth aspect is possible In realization method, the sending module is specifically used for：

With reference to second of fourth aspect or the third possible realization method, in the 4th kind of possible reality of fourth aspect In existing mode, first physics money of the first resource where the down control channel that the sending module is sent The frequency domain initial position of source block set refers to the Physical Resource Block of physical resource block number minimum in the first physical resource set of blocks Physical resource block number, it is described carrying synchronizing signal and/or find signal physical resource set of blocks frequency domain initial position Refer to the Physical Resource Block of physical resource block number minimum in the physical resource set of blocks of carrying synchronizing signal and/or discovery signal Physical resource block number.

With reference to the possible realization method of the first of fourth aspect or fourth aspect, the 5th kind in fourth aspect is possible In realization method, the sending module is specifically used for：

With reference to the 5th kind of possible realization method of fourth aspect, in the 6th kind of possible realization method of fourth aspect In, the first Physical Resource Block collection of the first resource where the down control channel that the sending module is sent Conjunction includes the first muon physics resource set of blocks and the second muon physics resource set of blocks, the first muon physics resource set of blocks and institute State the both sides that the second muon physics resource set of blocks is located at carrying synchronizing signal and/or finds the physical resource set of blocks of signal.

With reference to the 6th kind of possible realization method of fourth aspect, in the 7th kind of possible realization method of fourth aspect In, the first Physical Resource Block collection of the first resource where the down control channel that the sending module is sent It is identical with the Physical Resource Block number that the second muon physics resource set of blocks includes to close the Physical Resource Block number included；Or Person, the corresponding down control channel blind Detecting number of the first muon physics resource set of blocks and the second muon physics resource block It is identical to gather corresponding down control channel blind Detecting number.

In second to the 7th kind any possible realization method with reference to fourth aspect, at the 8th kind of fourth aspect In possible realization method, the sending module is specifically used for：

With reference in the first of fourth aspect or fourth aspect to the 8th kind of any possible realization method, in four directions In the 9th kind of possible realization method in face, the determining module is specifically used for：

With reference in the first of fourth aspect or fourth aspect to the 9th kind of any possible realization method, in four directions In the tenth kind of possible realization method in face, in the corresponding DCI format of the down control channel that the sending module is sent Comprising the first information domain include following item in it is one or more：

Through the above technical solutions, the embodiment of the present invention passes through according to the Downlink Control Information carried on down control channel Middle acquisition system message rather than system message is obtained on PBCH, to being when can be affected to avoid PBCH transmission performances The transmission for message of uniting influences, and realizes and system message is transmitted and obtained on NCT.

Description of the drawings

To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the present invention, for this For the those of ordinary skill of field, without having to pay creative labor, other are can also be obtained according to these attached drawings Attached drawing.

Fig. 1 is a kind of flow diagram of the acquisition methods of system message provided in an embodiment of the present invention；

Fig. 2 is the flow diagram of the acquisition methods of another system message provided in an embodiment of the present invention；

Fig. 3 is that the frequency domain position of the first physical resource set of blocks and the physics of carrying synchronizing signal provide in the embodiment of the present invention A kind of relation schematic diagram of the frequency domain position of source block set；

Fig. 4 is that the frequency domain position of the first physical resource set of blocks and the physics of carrying synchronizing signal provide in the embodiment of the present invention Another relation schematic diagram of the frequency domain position of source block set；

Fig. 5 is that the frequency domain position of the first physical resource set of blocks and the physics of carrying synchronizing signal provide in the embodiment of the present invention Another relation schematic diagram of the frequency domain position of source block set；

Fig. 6 is the flow diagram of the acquisition methods of another system message provided in an embodiment of the present invention；

Fig. 7 is a kind of structure diagram of user equipment provided in an embodiment of the present invention；

Fig. 8 is a kind of structure diagram of base station provided in an embodiment of the present invention.

Specific embodiment

Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art All other embodiments obtained without making creative work shall fall within the protection scope of the present invention.

Fig. 1 is a kind of flow diagram of the acquisition methods of system message provided in an embodiment of the present invention, including：

11：User equipment detects down control channel, and bearing downlink controls information on the down control channel (Downlink Control Information, DCI) includes the first letter in the corresponding DCI format of the down control channel Domain is ceased, the first information domain is used to indicate system message；

Wherein, the DCI carried on down control channel determines a kind of DCI format that should determine that according to the DCI format The DCI carried on down control channel, the DCI format are properly termed as the corresponding DCI format of the down control channel.

Optionally, which can be one or more, for example, first information domain includes one in following item It is or multinomial：The domain of indicating downlink system bandwidth, the domain for indicating System Frame Number, the domain of the corresponding carrier type of indication carrier wave, instruction The domain of the public search space position of enhancing.Correspondingly, the system message of first information domain instruction is respectively：Downlink system band The position of the corresponding carrier type of width, System Frame Number, carrier wave, the public search space enhanced.

Optionally, the down control channel is Physical Downlink Control Channel (the Enhanced Physical of enhancing Downlink Control Channel, EPDCCH).

Optionally, the detection down control channel, including：

Optionally, the frequency domain initial position of the first physical resource set of blocks refers to object in the first physical resource set of blocks The physical resource block number of the Physical Resource Block of resource block number minimum is managed, it is described to carry synchronizing signal and/or find signal The frequency domain initial position of physical resource set of blocks refers to object in carrying synchronizing signal and/or the physical resource set of blocks for finding signal Manage the physical resource block number of the Physical Resource Block of resource block number minimum.

Optionally, the detection down control channel, including：

Optionally, the first physical resource set of blocks includes the first muon physics resource set of blocks and the second muon physics resource Set of blocks, the first muon physics resource set of blocks and the second muon physics resource set of blocks be located at carrying synchronizing signal and/ Or find the both sides of the physical resource set of blocks of signal.

Optionally, the Physical Resource Block number that the first muon physics resource set of blocks includes is provided with second muon physics The Physical Resource Block number that source block set includes is identical；Alternatively,

The corresponding down control channel blind Detecting number of first muon physics resource set of blocks and second muon physics The corresponding down control channel blind Detecting number of resource set of blocks is identical.Optionally, it is described that downlink control is detected on first resource Channel processed, including：

Optionally, the first information domain includes one or more in following item：

12：The user equipment obtains system according to the DCI carried on the down control channel detected and disappears Breath.

Optionally, the DCI carried on the down control channel that the basis detects obtains system message, packet It includes：

The first system message is also obtained according to the value in the first information domain comprising the second information field in the DCI format, According to the value of second information field receive Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH second system message), and from the PDSCH is obtained, second information field is used to indicate the transmission of PDSCH, described The second system message is carried in PDSCH.Correspondingly, referring to Fig. 2, the flow of base station side includes：

21：Base station determines the DCI of down control channel carrying, is included in the corresponding DCI format of the down control channel First information domain, the first information domain are used to indicate system message；

Optionally, the down control channel is EPDCCH.

Optionally, the base station determines the DCI of down control channel carrying, including：

The value in the first information domain is determined according to the first system message, described is determined according to the scheduling information of PDSCH The value of two information fields, so that the user equipment receives the PDSCH according to the value of second information field, and from described Second system message is obtained in PDSCH.

22：The base station sends the down control channel to user equipment so that the user equipment is according under described The DCI carried in row control channel obtains system message.

Optionally, it is described to send the down control channel, including：

Optionally, it is described that the down control channel is sent on first resource, including：

The down control channel is sent on any one child resource in the first resource.In the embodiment of the present invention, Down control channel can be EPDCCH.Since EPDCCH is based on demodulated reference signal (Demodulation Reference Signal, DMRS) demodulation, when the DCI transmitted according to EPDCCH obtains system message, with respect to dependence single antenna mouth The PBCH of CRS transmission obtains system message, can improve the transmission performance of system message；In addition, since PBCH is needed specific Subframe reserves fixed symbol, by EPDCCH Transmission system message, does not need to reserve for the transmission of the system message fixed Symbol so that DM-RS transmission has more selectable symbols, can optimize the design of DMRS, improve system performance.

Optionally, down control channel can be transmitted by first resource, and first resource is the first object in the first subframe Manage resource set of blocks.

Optionally, the first subframe can be carrying synchronizing signal and/or find signal (Discovery Signal, DS) Next subframe of subframe, the frequency domain initial position of the first physical resource set of blocks can believe with carrying synchronizing signal and/or discovery Number physical resource set of blocks frequency domain initial position it is identical or exist offset.

Optionally, the frequency domain initial position of the first physical resource set of blocks refers to object in the first physical resource set of blocks The physical resource block number of the Physical Resource Block of resource block number minimum is managed, it is described to carry synchronizing signal and/or find signal The frequency domain initial position of physical resource set of blocks refers to object in carrying synchronizing signal and/or the physical resource set of blocks for finding signal Manage the physical resource block number of the Physical Resource Block of resource block number minimum.Wherein, physical resource block number can be according to object Manage what position of the resource block on frequency domain was numbered successively.

Synchronizing signal can include primary synchronization signal (Primary Synchronization Signal, PSS) and it is auxiliary together Walk signal (Secondary Synchronization Signal, SSS).In the prior art, the sending cycle of PSS and SSS is 5 A subframe, frequency domain position are located in the frequency domain width of 6 PRB pair of carrier center, and two symbols are occupied in time domain.

For example, with reference to Fig. 3, the frequency domain initial position of the first physical resource set of blocks and the physical resource of carrying synchronizing signal The frequency domain initial position of set of blocks is identical, referring to Fig. 4, the frequency domain initial position letter synchronous with carrying of the first physical resource set of blocks Number physical resource set of blocks frequency domain initial position exist offset.Wherein, offset can be pre-configured with, in addition, the first object The frequency domain width of reason resource set of blocks can also be pre-configured with, with the frequency domain width of the first physical resource set of blocks and carrying in figure For the frequency domain of the physical resource set of blocks of synchronizing signal is of same size, certainly, the two width can also be different.

Optionally, the first subframe can be carry synchronizing signal and/or find signal subframe, the first Physical Resource Block collection The frequency domain position of conjunction can be with carrying synchronizing signal and/or finding the frequency domain position of physical resource set of blocks of signal there are Chong Die Or it is not overlapped completely.

When not being overlapped completely, Ke Yishi, the first Physical Resource Block, which is integrated on frequency domain, is entirely located in carrying synchronizing signal And/or find the upside or downside of the physical resource set of blocks of signal.Alternatively, as shown in figure 5, the first physical resource set of blocks packet Include the first muon physics resource set of blocks and the second muon physics resource set of blocks, the first muon physics resource set of blocks and the second muon physics Resource block is integrated into the both sides for the physical resource set of blocks for being located at carrying synchronizing signal and/or discovery signal on frequency domain respectively.The One muon physics resource set of blocks and the second muon physics resource set of blocks are located at carrying synchronizing signal respectively and/or find the object of signal The both sides of reason resource set of blocks enable to the EPDCCH transmitted on first resource to obtain frequency diversity gain, are so as to improve The transmission performance for message of uniting.

Optionally, the Physical Resource Block number that the first muon physics resource set of blocks includes and the second muon physics resource set of blocks Comprising Physical Resource Block number it is identical；Alternatively,

In addition, it is above-mentioned be not overlapped completely when, the frequency domain position of the first physical resource set of blocks can letter synchronous with carrying Number and/or find signal physical resource set of blocks frequency domain position it is adjacent or there is offset, which can be pre-configured with, Fig. 5 is for adjacent.

In above-mentioned presence overlapping, the Physical Downlink Control Channel can only take up for carry synchronizing signal and/or It was found that synchronizing signal is not used for transmission in the physical resource set of blocks of signal, finds signal and the resource unit of pilot signal (Resource Element, RE).

Optionally, the first physical resource set of blocks under above-mentioned each scene can be centralized (localized), also may be used To be distributed (distributed) formula.Centralization refers to Physical Resource Block in the first physical resource set of blocks to for company Continuous Physical Resource Block pair.Distribution refers to that the Physical Resource Block in the first physical resource set of blocks to be provided at least there are two physics It is discontinuous between source block pair.When for distribution, in the first physical resource set of blocks between two neighboring Physical Resource Block pair Frequency domain interval can be identical, and for fixed value, for example, the interval is to be fixed as 1 Physical Resource Block pair or 2 physical resources Block pair.

In the present embodiment, since first resource and the resource of carrying synchronizing signal and/or discovery signal exist in position Fixed relationship, when user equipment first it is detected that synchronizing signal and/or after find signal, can according to synchronizing signal and/or It was found that the resource location of signal obtains the resource location of first resource, so as to avoid in multiple possible position blind examination first resources Position, save the power consumption of user equipment, and realize and be quickly obtained system message, so as to reduce user equipment complete it is same The time of step.

After user equipment detects down control channel on first resource, it can be carried according in the down control channel DCI obtain system message.

Optionally, first information domain or the DCI lattice can be only included in the corresponding DCI format of the down control channel In formula the transmission of PDSCH is used to indicate comprising first information domain and the second information field, the second information field.It should be noted that DCI Only it can refer to only first information domain in the DCI format comprising first information domain in form and be used to indicate system message, at this time should Other information domain, such as the information field for distinguishing the DCI format and other DCI formats can be included in DCI format.

Mode one：When only including first information domain in DCI format, first information domain can be included in following item at least One：The field of indicating downlink system bandwidth, indicate System Frame Number the corresponding carrier type of field, indication carrier wave domain, refer to Show the domain of the public search space position of enhancing.It can also include and indicate other Master Information Block (Master Information Block, MIB) domain.

Once, the first information domain of indicating system message can be carried on the corresponding DCI lattice of EPDCCH to which by base station In formula.When user equipment detects EPDCCH, can system message be obtained from DCI according to DCI format.

The corresponding DCI format of the down control channel of which once can be a completely new form, as except form 0th, 1 a kind of, DCI format except 1A, 1B, 1C, 1D, 2,2A, 2B, 2C, 2D, 3,3A, 4, such as DCI format 2E.It but should The payload size of new DCI format are identical with the payload size of at least one existing DCI format, such as can be with The payload size of DCI format 2D are identical or can be identical with the payload size of DCI formatlA.

Mode two：When including first information domain and the second information field in DCI format, first information domain can include instruction The domain of downlink system bandwidth；Second information field can include the domain of instruction PDSCH transmission, and SIB1 or increasing are carried on the PDSCH Strong SIB1, the SIB1 of the enhancing include field of instruction System Frame Number etc..

Under which two, which can only indicate the part system message in MIB, such as can be only comprising finger Show the domain of downlink system bandwidth.The corresponding DCI formats of the EPDCCH can also include the domain of instruction PDSCH transmission, that is, also Comprising the second information field, which can be used for the SIB1 of carrying enhancing, and the SIB1 of the enhancing includes instruction System Frame Number Domain.At this point, the resource allocation field in the DCI format can be indicated according to a specific system bandwidth, the DCI format The domain of middle instruction system bandwidth can be located at the fixed position (such as positioned at first domain of the DCI format) in the DCI format, User equipment first can read system bandwidth on the fixed position, then further according to the system bandwidth in the DCI format Resource allocation field explain.

Under which two, the corresponding DCI format of the down control channel can reuse existing DCI format, and it is existing to reuse this There is in DCI format existing field to indicate system bandwidth, which can be DCI1/1A/1B/1C/ One or more of 1D/2/2A/2B/2C/2D.Under which two, first pass through some domain inside DCI format and obtain carrier wave System bandwidth, then further according to the content obtaining others system message carried in PDSCH, such as can once will be in system MIB and SIB1 are obtained so that user can quickly be serviced.

In the embodiment of the present invention, user equipment can obtain system after first information domain is obtained according to first information domain Message, system message can be MIB, and for mode two, user equipment can also obtain the information of PDSCH carryings, so as to obtain Other systems message, other system messages can include part mib information and SIB1 information.

The present embodiment can be realized and be obtained in NCT by obtaining system message according to the DCI carried in down control channel Take system message.In addition, when down control channel is EPDCCH, system message is obtained by the DCI of EPDCCH carryings, it can be with It realizes the acquisition that system message is realized based on DMRS, avoids relying on the Information Acquisition System message of single antenna mouth CRS transmission, so as to Improve the acquisition performance of system message；By using EPDCCH transmission DCI obtain system message, avoid be in specific sub-frame PBCH reserves fixed symbol, so as to which the design for making DMRS is not limited by reserved position, can help to optimize setting for DMRS Meter improves system performance.

Flow diagrams of the Fig. 6 for the acquisition methods of another system message provided in an embodiment of the present invention, the present embodiment In multiple cells share first resource, by down control channel for for EPDCCH.The present embodiment includes：

61：User equipment determines itself corresponding child resource on first resource, is detected on itself corresponding child resource Down control channel；

Wherein, cell sharing mode can include following several：

Mode one：The initial position of the search space of EPDCCH of each cell on first resource is corresponding small by the cell Area's mark determines.

Under which, base station can determine the start bit of the search space of the corresponding EPDCCH of each cell according to cell ID It puts, then sends EPDCCH on the corresponding physical resource in the search space.

User equipment can determine the search of the corresponding EPDCCH of this cell according to the cell ID of itself affiliated subdistrict The initial position in space then according to the initial position, is searched in corresponding search space and obtains Physical Downlink Control Channel.

Mode two：First resource includes the child resources of multiple carrying EPDCCH, and the corresponding EPDCCH of each cell is occupied Child resource is determined by the corresponding cell ID of the cell.

Under which, base station can determine to carry the child resource of the corresponding EPDCCH of each cell according to cell ID, then The EPDCCH is sent on determining child resource.

User equipment can determine that carrying the corresponding EPDCCH of this cell occupies according to the cell ID of itself affiliated subdistrict Child resource, receive Physical Downlink Control Channel on corresponding child resource later.

Mode three：First resource includes the child resources of multiple carrying EPDCCH, and the corresponding EPDCCH of each cell occupies solid Sub-resource.

Under which, which specific cell occupies which child resource can be mutually coordinated between cells.The first resource Comprising multiple child resources can be multiplexed between multiple cells with fixed multiplexing factor.The son money that different community occupies Source can be different, and the child resource that the cell of geographical location relatively far apart occupies can be identical.

Under which, base station can send the corresponding EPDCCH of each cell on the corresponding fixed child resource of each cell, User equipment by corresponding fixed child resource blind Detecting receive the corresponding EPDCCH of this cell.

Under which, the corresponding child resource of each cell can be different in different subframes.

Mode four, the first resource include the child resources of multiple carrying EPDCCH, and the corresponding EPDCCH of each cell can be with Occupy any one child resource；

Under which, to the child resource that respectively occupies without coordinating between base station, base station can decide carrying in its sole discretion should It is corresponding to receive this cell by the corresponding all child resources of the blind Detecting first resource for the child resource of EPDCCH, user equipment EPDCCH。

62：The user equipment obtains system message according to the Physical Downlink Control Channel.

Particular content may refer to above-mentioned associated description.

The present embodiment can improve efficiency of transmission, and in first three above-mentioned by the way that multiple cells are shared first resource During kind sharing mode, the resource that can cause the bearing downlink control channel of multiple cells is different, so as to avoid inter-cell interference, Improve the transmission performance of system message.

Fig. 7 is a kind of structure diagram of user equipment provided in an embodiment of the present invention, which includes detection Module 71 and acquisition module 72；Detection module 71 is for detecting down control channel, bearing downlink on the down control channel Control information DCI, comprising first information domain in the corresponding DCI format of the down control channel, the first information domain is used for Indicating system message；Acquisition module 72 is used for what is carried on the down control channel detected according to the detection module 71 The DCI obtains system message.

Optionally, the detection module 71 detects the physical down control letter that the obtained down control channel is enhancing Road EPDCCH.

Optionally, the detection module 71 is specifically used for：

Optionally, the frequency domain of the first physical resource set of blocks for the first resource that the detection module 71 detects Initial position refers to that the Physical Resource Block of the Physical Resource Block of physical resource block number minimum in the first physical resource set of blocks is compiled Number, the frequency domain initial position of the carrying synchronizing signal and/or the physical resource set of blocks for finding signal refers to carry synchronous letter Number and/or find signal physical resource set of blocks in physical resource block number minimum Physical Resource Block Physical Resource Block volume Number.

Optionally, the detection module 71 is specifically used for：

Optionally, the first physical resource set of blocks for the first resource that the detection module 71 detects includes the One muon physics resource set of blocks and the second muon physics resource set of blocks, the first muon physics resource set of blocks and second son Physical resource set of blocks is located at carrying synchronizing signal and/or finds the both sides of the physical resource set of blocks of signal.

Optionally, the first physical resource set of blocks for the first resource that the detection module 71 detects includes What the Physical Resource Block number that the first muon physics resource set of blocks includes was included with the second muon physics resource set of blocks Physical Resource Block number is identical；Alternatively, the corresponding down control channel blind Detecting number of the first muon physics resource set of blocks Down control channel blind Detecting number corresponding with the second muon physics resource set of blocks is identical.

Optionally, the detection module 71 is specifically used for：

Optionally, the acquisition module 72 is specifically used for：

Optionally, the first information domain of 72 basis of acquisition module includes one or more in following item ：

In hardware realization, more than detection module can be receiver or transceiver, and more than acquisition module can be with hardware Form is embedded in or independently of in the processor of base station, can also be stored in the memory of base station in a software form, in order to Processor, which calls, performs the corresponding operation of more than modules.The processor can be central processing unit (CPU), microprocessor Device, microcontroller etc..It is understood that in the user equipment can also include memory, antenna, baseband process component, in penetrate The universal components such as frequency processing component, input/output unit, no longer any restrictions herein of the embodiment of the present invention.

It is set in above method embodiment about user it should be noted that user equipment shown in Fig. 7 can be used to implement Standby any method, and the description of relational language and particular content, with above method embodiment, details are not described herein.

The present embodiment by according to obtained in the Downlink Control Information carried on down control channel system message rather than System message is obtained on PBCH, the transmission of system message is influenced when can be affected to avoid PBCH transmission performances, is realized System message is transmitted and obtained on NCT.

Fig. 8 is a kind of structure diagram of base station provided in an embodiment of the present invention, which includes 81 He of determining module Sending module 82；Determining module 81 is used to determine the Downlink Control Information DCI of down control channel carrying, the downlink control letter Comprising first information domain in the corresponding DCI format in road, the first information domain is used to indicate system message；Sending module 82 is used for The down control channel is sent to user equipment so that the downlink that the user equipment is determined according to the determining module The DCI carried in control channel obtains system message.

Optionally, the down control channel that the sending module 82 is sent is the Physical Downlink Control Channel of enhancing EPDCCH。

Optionally, the sending module 82 is specifically used for：

Optionally, described the of the first resource where the down control channel that the sending module 82 is sent The frequency domain initial position of one physical resource set of blocks refers to the object of physical resource block number minimum in the first physical resource set of blocks Manage the frequency domain of the physical resource block number of resource block, the carrying synchronizing signal and/or the physical resource set of blocks for finding signal Initial position refers to the object of physical resource block number minimum in carrying synchronizing signal and/or the physical resource set of blocks for finding signal Manage the physical resource block number of resource block.

Optionally, the sending module 82 is specifically used for：

Optionally, described the of the first resource where the down control channel that the sending module 82 is sent One physical resource set of blocks includes the first muon physics resource set of blocks and the second muon physics resource set of blocks, first muon physics Resource set of blocks and the second muon physics resource set of blocks are located at carrying synchronizing signal and/or find the Physical Resource Block of signal The both sides of set.

Optionally, described the of the first resource where the down control channel that the sending module 82 is sent The physical resource that the Physical Resource Block number that one physical resource set of blocks includes is included with the second muon physics resource set of blocks Block number is identical；Alternatively, the corresponding down control channel blind Detecting number of the first muon physics resource set of blocks and described the The corresponding down control channel blind Detecting number of two muon physics resource set of blocks is identical.

Optionally, the sending module 82 is specifically used for：

Optionally, the determining module 81 is specifically used for：

Optionally, it is included in the corresponding DCI format of the down control channel that the sending module 82 is sent described First information domain includes one or more in following item：

In hardware realization, more than sending module can be transmitter or transceiver, and module determined above can be with hardware Form is embedded in or independently of in the processor of base station, can also be stored in the memory of base station in a software form, in order to Processor, which calls, performs the corresponding operation of more than modules.The processor can be central processing unit (CPU), microprocessor Device, microcontroller etc..It is understood that at can also be including memory, antenna, baseband process component, middle radio frequency in the base station Manage component, the universal components such as input/output unit, no longer any restrictions herein of the embodiment of the present invention.

It should be noted that base station shown in Fig. 8 can be used to implement in above method embodiment about any of base station Kind method, and the description of relational language and particular content, with above method embodiment, details are not described herein.

It is apparent to those skilled in the art that for convenience and simplicity of description, only with above-mentioned each function The division progress of module, can be as needed and by above-mentioned function distribution by different function moulds for example, in practical application Block is completed, i.e., the internal structure of device is divided into different function modules, to complete all or part of work(described above Energy.The specific work process of the system, apparatus, and unit of foregoing description can refer to corresponding in preceding method embodiment Journey, details are not described herein.

In several embodiments provided herein, it should be understood that disclosed system, device and method can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the module or The division of unit, only a kind of division of logic function can have other dividing mode, such as multiple units in actual implementation Or component may be combined or can be integrated into another system or some features can be ignored or does not perform.Another point, institute Display or the mutual coupling, direct-coupling or communication connection discussed can be by some interfaces, device or unit INDIRECT COUPLING or communication connection can be electrical, machinery or other forms.

The unit illustrated as separating component may or may not be physically separate, be shown as unit The component shown may or may not be physical unit, you can be located at a place or can also be distributed to multiple In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme 's.

In addition, each functional unit in each embodiment of the application can be integrated in a processing unit, it can also That each unit is individually physically present, can also two or more units integrate in a 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 SFU software functional unit.

If the integrated unit is realized in the form of SFU software functional unit and is independent product sale or uses When, it can be stored in a computer read/write memory medium.Based on such understanding, the technical solution of the application is substantially The part to contribute in other words to the prior art or all or part of the technical solution can be in the form of software products It embodies, which is stored in a storage medium, is used including some instructions so that a computer It is each that equipment (can be personal computer, server or the network equipment etc.) or processor (processor) perform the application The all or part of step of embodiment the method.And aforementioned storage medium includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD Etc. the various media that can store program code.

The above, above example are only to illustrate the technical solution of the application, rather than its limitations；Although with reference to before Embodiment is stated the application is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to preceding The technical solution recorded in each embodiment is stated to modify or carry out equivalent replacement to which part technical characteristic；And these Modification is replaced, the spirit and scope of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution.

Claims

1. a kind of acquisition methods of system message, which is characterized in that including：

User equipment detects down control channel, and bearing downlink controls information DCI, the downlink control on the down control channel Comprising first information domain in the corresponding DCI format of channel processed, the first information domain is used to indicate system message；

The user equipment obtains system message according to the DCI carried on the down control channel detected；

The down control channel is the Physical Downlink Control Channel of enhancing；

The first information domain includes one or more in following item：

The domain of indicating downlink system bandwidth, the domain for indicating System Frame Number, the domain of the corresponding carrier type of indication carrier wave, instruction enhancing Public search space position domain.

2. according to the method described in claim 1, it is characterized in that, the detection down control channel, including：

Down control channel is detected on first resource, the first resource is the first Physical Resource Block collection in the first subframe It closes；

First subframe is carrying synchronizing signal and/or finds next subframe of the subframe of signal, first physical resource The frequency domain initial position of set of blocks and carrying synchronizing signal and/or the frequency domain initial position for the physical resource set of blocks for finding signal It is identical.

3. according to the method described in claim 1, it is characterized in that, the detection down control channel, including：

First subframe is carrying synchronizing signal and/or finds next subframe of the subframe of signal, first physical resource The frequency domain initial position of set of blocks and carrying synchronizing signal and/or the frequency domain initial position for the physical resource set of blocks for finding signal There are scheduled offsets.

4. according to the method in claim 2 or 3, which is characterized in that the frequency domain starting of the first physical resource set of blocks Position refers to the physical resource block number of the Physical Resource Block of physical resource block number minimum in the first physical resource set of blocks, institute State carrying synchronizing signal and/or find signal physical resource set of blocks frequency domain initial position refer to carry synchronizing signal and/ Or find the physical resource block number of the Physical Resource Block of physical resource block number minimum in the physical resource set of blocks of signal.

5. according to the method described in claim 1, it is characterized in that, the detection down control channel, including：

First subframe be carry synchronizing signal and/or find signal subframe, the frequency of the first physical resource set of blocks Domain position and the frequency domain position of carrying synchronizing signal and/or the physical resource set of blocks for finding signal be not be overlapped.

6. according to the method described in claim 5, it is characterized in that, the first physical resource set of blocks includes the first muon physics Resource set of blocks and the second muon physics resource set of blocks, the first muon physics resource set of blocks and the second muon physics resource Set of blocks is located at carrying synchronizing signal and/or finds the both sides of the physical resource set of blocks of signal.

7. according to the method described in claim 6, it is characterized in that,

The Physical Resource Block number that the first muon physics resource set of blocks includes and the second muon physics resource set of blocks packet The Physical Resource Block number contained is identical；Alternatively,

The corresponding down control channel blind Detecting number of first muon physics resource set of blocks and the second muon physics resource The corresponding down control channel blind Detecting number of set of blocks is identical.

8. according to the method in claim 2 or 3, which is characterized in that it is described that down control channel is detected on first resource, Including：

User equipment determines the position of the search space of down control channel according to cell ID, according to the position in described search space It puts and the down control channel is detected on first resource；Alternatively,

The first resource includes multiple child resources, and user equipment determines that the son that down control channel occupies provides according to cell ID The down control channel is detected in source on the child resource of down control channel occupancy；Alternatively,

The first resource includes multiple child resources, and the down control channel occupies one in the multiple child resource, institute It states user equipment and the down control channel is detected on the multiple child resource by blind Detecting.

9. according to claim 1-3 any one of them methods, which is characterized in that the downlink control that the basis detects The DCI carried on channel obtains system message, including：

The first system message is also obtained according to the value in the first information domain comprising the second information field in the DCI format, according to The value of second information field receives Physical Downlink Shared Channel PDSCH, and second system message is obtained from the PDSCH, Second information field is used to indicate the transmission of PDSCH, and the second system message is carried in the PDSCH.

10. a kind of transmission method of system message, which is characterized in that including：

Base station determines the Downlink Control Information DCI of down control channel carrying, in the corresponding DCI format of the down control channel Comprising first information domain, the first information domain is used to indicate system message；

The base station sends the down control channel to user equipment, and the down control channel is used for the user equipment root System message is obtained according to the DCI carried on the down control channel；

The first information domain includes one or more in following item：

11. according to the method described in claim 10, it is characterized in that, described send the down control channel, including：

The down control channel is sent on first resource, the first resource is the first Physical Resource Block in the first subframe Set；

12. according to the method described in claim 10, it is characterized in that, described send the down control channel, including：

13. the method according to claim 11 or 12, which is characterized in that the frequency domain of the first physical resource set of blocks rises Beginning position refers to the physical resource block number of the Physical Resource Block of physical resource block number minimum in the first physical resource set of blocks, The frequency domain initial position of the carrying synchronizing signal and/or the physical resource set of blocks for finding signal refers to carry synchronizing signal And/or find that the Physical Resource Block of the Physical Resource Block of physical resource block number minimum in the physical resource set of blocks of signal is compiled Number.

14. according to the method described in claim 10, it is characterized in that, described send the down control channel, including：

15. according to the method for claim 14, which is characterized in that the first physical resource set of blocks includes the first sub- object Manage resource set of blocks and the second muon physics resource set of blocks, the first muon physics resource set of blocks and second muon physics money Source block set is located at carrying synchronizing signal and/or finds the both sides of the physical resource set of blocks of signal.

16. according to the method for claim 15, which is characterized in that

17. the method according to claim 11 or 12, which is characterized in that described that the downlink control is sent on first resource Channel processed, including：

The position of the search space of the down control channel is determined according to cell ID, is sent out according to the position in described search space Send the down control channel；Alternatively,

The child resource that the down control channel occupies on first resource is determined according to cell ID, in the son money of the occupancy The down control channel is sent on source；Alternatively,

18. according to claim 10-12 any one of them methods, which is characterized in that the base station determines down control channel The Downlink Control Information DCI of carrying, including：

The value in the first information domain is determined according to the first system message, is believed according to the scheduling of Physical Downlink Shared Channel PDSCH Breath determines the value of the second information field, so that the user equipment receives the PDSCH according to the value of second information field, and Second system message is obtained from the PDSCH.

19. a kind of user equipment, which is characterized in that including：

Detection module, for detecting down control channel, bearing downlink control information DCI, described on the down control channel Comprising first information domain in the corresponding DCI format of down control channel, the first information domain is used to indicate system message；

Acquisition module, the DCI for being carried on the down control channel that is detected according to the detection module are obtained System message；

The down control channel that the detection module detects is the Physical Downlink Control Channel of enhancing；

The acquisition module according to the first information domain include following item in it is one or more：

20. user equipment according to claim 19, which is characterized in that the detection module is specifically used for：

21. user equipment according to claim 19, which is characterized in that the detection module is specifically used for：

22. the user equipment according to claim 20 or 21, the first resource of the detection module detection it is described The frequency domain initial position of first physical resource set of blocks refers to physical resource block number minimum in the first physical resource set of blocks The frequency of the physical resource block number of Physical Resource Block, the carrying synchronizing signal and/or the physical resource set of blocks for finding signal Domain initial position refers to physical resource block number minimum in carrying synchronizing signal and/or the physical resource set of blocks for finding signal The physical resource block number of Physical Resource Block.

23. user equipment according to claim 19, which is characterized in that the detection module is specifically used for：

24. user equipment according to claim 23, which is characterized in that the first resource of the detection module detection The first physical resource set of blocks include the first muon physics resource set of blocks and the second muon physics resource set of blocks, described the One muon physics resource set of blocks and the second muon physics resource set of blocks are located at carrying synchronizing signal and/or find the object of signal Manage the both sides of resource set of blocks.

25. user equipment according to claim 24, which is characterized in that the first resource of the detection module detection The Physical Resource Block number that includes of the first muon physics resource set of blocks for including of the first physical resource set of blocks with The Physical Resource Block number that the second muon physics resource set of blocks includes is identical；Alternatively, the first muon physics resource block collection It is blind to close corresponding down control channel blind Detecting number down control channel corresponding with the second muon physics resource set of blocks It is identical to detect number.

26. the user equipment according to claim 20 or 21, which is characterized in that the detection module is specifically used for：

The position of the search space of down control channel is determined according to cell ID, according to the position in described search space first The down control channel is detected in resource；Alternatively,

The child resource of down control channel occupancy is determined according to cell ID, on the child resource occupied in the down control channel The down control channel is detected, wherein, the first resource includes multiple child resources；Alternatively,

The down control channel is detected on the multiple child resource by blind Detecting, wherein, the first resource includes more A child resource, the down control channel occupy one in the multiple child resource.

27. according to claim 19-21 any one of them user equipmenies, which is characterized in that the acquisition module is specifically used for：

The first system message is obtained according to the value in the first information domain, receiving physical down according to the value of the second information field shares Channel PDSCH, and second system message is obtained from the PDSCH, wherein, the second information field is also included in the DCI format, Second information field is used to indicate the transmission of PDSCH, and the second system message is carried in the PDSCH.

28. a kind of base station, which is characterized in that including：

Determining module, for determining the Downlink Control Information DCI of down control channel carrying, the down control channel is corresponding Comprising first information domain in DCI format, the first information domain is used to indicate system message；

Sending module, for sending the down control channel to user equipment, the down control channel is used for the user The DCI carried on the down control channel that equipment is determined according to the determining module obtains system message；

The down control channel that the sending module is sent is the Physical Downlink Control Channel of enhancing；

The first information domain included in the corresponding DCI format of the down control channel that the sending module is sent includes It is one or more in following item：

29. base station according to claim 28, which is characterized in that the sending module is specifically used for：

30. base station according to claim 28, which is characterized in that the sending module is specifically used for：

31. the base station according to claim 29 or 30, which is characterized in that the downlink control that the sending module is sent The frequency domain initial position of the first physical resource set of blocks of the first resource where channel refers to the first physical resource The physical resource block number of the Physical Resource Block of physical resource block number minimum in set of blocks, it is described carrying synchronizing signal and/or It was found that the frequency domain initial position of the physical resource set of blocks of signal refers to carry synchronizing signal and/or finds the physical resource of signal The physical resource block number of the Physical Resource Block of physical resource block number minimum in set of blocks.

32. base station according to claim 28, which is characterized in that the sending module is specifically used for：

33. base station according to claim 32, which is characterized in that the down control channel that the sending module is sent The first physical resource set of blocks of the first resource at place includes the first muon physics resource set of blocks and the second sub- object Manage resource set of blocks, the first muon physics resource set of blocks and the second muon physics resource set of blocks are located at that carrying is synchronous to be believed Number and/or find signal physical resource set of blocks both sides.

34. base station according to claim 33, which is characterized in that the down control channel that the sending module is sent The Physical Resource Block number that the first physical resource set of blocks of the first resource at place includes and the described second sub- object The Physical Resource Block number that reason resource set of blocks includes is identical；Alternatively, the corresponding downlink of the first muon physics resource set of blocks Control channel blind Detecting number down control channel blind Detecting number corresponding with the second muon physics resource set of blocks is identical.

35. the base station according to claim 29 or 30, which is characterized in that the sending module is specifically used for：

36. according to claim 28-30 any one of them base station, which is characterized in that the determining module is specifically used for：

37. a kind of computer storage media, is stored thereon with computer program, when the computer program is executed by processor When, realize claim 1-18 any one of them methods.